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Lung Cancer ?

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9 August 2005
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Kamalakar Pasupuleti
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  1. The speed with which Peter Jennings the versatile anchor of ABC News
    succumbed to lung cancer is shocking . What are the early symptoms of
    lung cancer and how early it can be detected ?

    Kam

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

  2. I'm interested in prevention. I saw a study several years ago, which
    included the information that a population using coconut oil (in Asia)
    had very low rates of lung cancer, regardless of whether they were
    chains smokers or never smoked.

    Mary Enig (fatty acid expert) has written about the importance of
    certain saturated fatty acids for lung health and resistance to
    "disease." If your diet is high in unsaturated fatty acids, which it
    almost certainly is, you are going to be much more susceptible to lung
    cancer and other cancers. Here's a recent report, for example, which
    just reiterates what I've been saying here for years (because
    scientists have been saying it for years, for example, Jay Whelan's
    1997 study about polyunsaturated fatty acids being signaling agents for
    cancer). And don't think that fish oil will cancel out all the bad
    effects of omega 6 PUFAs. These fatty acids are just as bad, though in
    somewhat different ways, depending upon the context.

    8/2/2005
    Omega-6 Fatty Acids Cause Prostate Tumor Cell Growth In Culture

    A study conducted at the San Francisco VA Medical Center (SFVAMC) has
    demonstrated that omega-6 fatty acids such as the fat found in corn oil
    promote the growth of prostate tumor cells in the laboratory. The study
    also identifies a potential new molecular target for anti-tumor drugs:
    an enzyme known as cPLA2, which plays a key role in the chain leading
    from omega-6 fatty acids to prostate tumor cell growth.

    The study was led by Millie Hughes-Fulford, PhD, director of the
    Laboratory of Cell Growth at SFVAMC and scientific advisor to the U.S.
    Undersecretary of Health for the Department of Veterans Affairs. It is
    being published in the September 2005 issue of Carcinogenesis, and is
    currently available online.

    Working with human prostate cancer cells in tissue culture,
    Hughes-Fulford and her fellow researchers identified for the first time
    a direct chain of causation: When introduced into prostate tumor cells
    in culture, omega-6 fatty acid causes the production of cPLA2, which
    then causes the production of the enzyme COX2. In turn, COX2 stimulates
    the release of PGE2, a hormone-like molecule that promotes cell growth.

    "What's important about this is that omega-6 fatty acids are found in
    corn oil and most of the oils used in bakery goods," says
    Hughes-Fulford, who is also an adjunct professor of medicine at the
    University of California, San Francisco (UCSF). "Which means that if
    you're eating a diet high in omega-6 fatty acids, it's possible that
    you're turning on this cancer cascade, which has been shown to be a
    common denominator in the growth of prostate, colorectal, and some
    breast cancers."

    The study points out that 60 years ago in the United States, the
    dietary ratio of omega-6 to omega-3, a beneficial fatty acid, was 1 to
    2. Today, the ratio is 25 to 1. Over that same 60 years, the incidence
    of prostate cancer in the U.S. has increased steadily.

    Hughes-Fulford also found that flurbiprofen, a non-steroidal
    anti-inflammatory drug commonly prescribed for arthritis, blocked the
    production of cPLA2 and broke the chain leading to cell growth. This
    means, she says, that new drugs might be developed that could
    specifically target cPLA2 and prevent COX2 from being released.

    "COX2 has been implicated in the growth of many types of tumors," she
    notes. "So if you can find a way to block that cascade in the tumor,
    starting with cPLA2, you might have a new way of modifying or slowing
    tumor growth."

    Hughes-Fulford points out that cPLA2 inhibitors would avoid the
    problems inherent in the class of drugs known as COX2 inhibitors. These
    drugs have been shown to be effective against tumor growth as well as
    in treating the pain associated with inflammatory conditions such as
    arthritis, but have been implicated in increased risk of cardiovascular
    problems in people who take them regularly. "COX2 inhibitors also
    inhibit prostacyclins, which are enzymes that are beneficial to the
    heart, and cPLA2 inhibitors would not affect those," she explains.

    In future research, Hughes-Fulford will be looking at the overall
    effect of different types of fatty acids on different tumor types in
    cell lines as well as human biopsies. She plans a study that will
    correlate type of fatty acid with tumor stage and grade in order to
    obtain a clearer picture of specific effects of different fats on tumor
    progression.

    Co-authors of the study were Raymond R. Tjandrawinata, PhD, of UCSF,
    Chai-Fei Li, BA, of SFVAMC, and Sina Sayyah, BA, of SFVAMC and UCSF.

    Science. 2005 Jul 29;309(5735):774-7.

    Recognition of host immune activation by Pseudomonas aeruginosa.

    Wu L, Estrada O, Zaborina O, Bains M, Shen L, Kohler JE, Patel N, Musch
    MW, Chang EB, Fu YX, Jacobs MA, Nishimura MI, Hancock RE, Turner JR,
    Alverdy JC.

    Department of Surgery, University of Chicago, Pritzker School of
    Medicine, Chicago, IL 60637, USA.

    It is generally reasoned that lethal infections caused by opportunistic
    pathogens develop permissively by invading a host that is both
    physiologically stressed and immunologically compromised. However, an
    alternative hypothesis might be that opportunistic pathogens actively
    sense alterations in host immune function and respond by enhancing
    their virulence phenotype. We demonstrate that interferon-gamma binds
    to an outer membrane protein in Pseudomonas aeruginosa, OprF, resulting
    in the expression of a quorum-sensing dependent virulence determinant,
    the PA-I lectin. These observations provide details of the mechanisms
    by which prokaryotic organisms are directly signaled by immune
    activation in their eukaryotic host.

    7/30/2005
    Immune System's Distress Signal Tells Bacteria When To Strike Back

    The human opportunistic pathogen, Pseudomonas aeruginosa, has broken
    the immune system's code, report researchers from the University of
    Chicago, enabling the bacteria to recognize when its host is most
    vulnerable and to launch an attack before the weakened host can muster
    its defenses.

    In the July 29, 2005 issue of Science, the researchers show how this
    lethal organism detects interferon-gamma, a chemical messenger the
    immune system uses to coordinate its efforts to get rid of bacteria.
    When these bacteria intercept this message, they recognize it as a
    threat, assess their own numbers, and if they have sufficient strength,
    activate genes that quickly transform them from benign passengers in
    the bowel into deadly blood-stream invaders.

    "Most of the time these microbes are content to live and grow in our
    intestines," said John Alverdy, MD, professor of surgery at the
    University of Chicago and director of the study. "They don't feel the
    need or even look for the opportunity to attack. But when they detect a
    threat, they have a remarkably sophisticated defense plan, based,
    unfortunately, on the notion that the best defense is an overwhelming
    offense."

    Pseudomonas aeruginosa is ubiquitous. It lives in all sorts of moist
    places, including damp soil and on the surface of vegetables, as well
    as in streams, faucets, and drinking fountains. It is often a long-term
    bowel tenant, colonizing the intestines of about three percent of
    healthy people.

    In the bowel this germ is usually harmless, but it can turn deadly,
    causing gut-derived sepsis. It is also a frequent cause of infections
    after major surgery.

    Physicians have theorized, said Alverdy, that germs such as Pseudomonas
    are always "probing for a weakness in the host and are ready and
    willing to strike whenever they find one." He and his colleagues,
    however, are testing an alternative theory: that "bacteria are
    perfectly content in their niche until signals from the host--usually
    during stress, such as after major surgery--let them know there's a
    problem."

    For Pseudomonas, detecting interferon-gamma, "is like receiving a
    demolition notice from your landlord," Alverdy said. "It lets them know
    they need to find a new home. They don't take that news any better than
    we would."

    A vulnerable host, like a condemned home, is a liability, a threat to
    its tenants' survival. Pseudomonas, however, has the tools to engineer
    its own escape--by killing off the host.

    This wily pathogen can evade a host's immune system. It can repel
    antibiotics, secrete toxins similar to those used by anthrax, latch
    onto the bowel wall, bore its way through, and flow into the blood
    stream. As a consequence, patients with widespread Pseudomonas
    infection often die within a few days.

    Alverdy and colleagues were able to pinpoint key early steps of this
    lethal process. The transformation starts when a weakened host tries to
    boost its defenses against any possible invasion. The host's T cells
    release chemical signals that activate the immune system. One of those
    signals, interferon-gamma, is intercepted by a protein, called OprF,
    found on the outer membrane surface of Pseudomonas. This serves an
    early warning system.

    Once Pseudomonas detects the first signs of a brewing immune response,
    they also begin to prepare for battle, gathering information and
    responding with their own counteroffensive.

    Their first move is a process called quorum sensing, which bacteria use
    to gauge their own numbers. When interferon-gamma binds with OprF on
    the bacterial cell surface, it activates a gene called rhII. RhII
    triggers synthesis and secretion of a bacterial signaling molecule
    called C4-HSL. By measuring the amount of C4-SHL in their environment
    these bacteria can estimate their own numbers and density.

    If they feel they are sufficiently numerous, they produce two virulence
    factors, molecular weapons known as PA-I and Pyocyanin. PA-I causes the
    barrier cells that line the host's bowel to become more permeable,
    which renders them more susceptible to the microbe's toxins. Pyocyanin
    enhances the germ's ability to pass through the weakened bowel wall,
    enter the bloodstream and invade tissue.

    "Our goal," Alverdy said, "is to understand the many steps in this
    process and use that knowledge to find novel ways to intervene, to stop
    the infection before it starts rather than trying to kill all the
    germs."

    Many harmful bacteria have already learned how to resist the drugs
    developed to treat them. Scientists are now looking at alternatives,
    such as ways to block or scramble the chemical messages that allow
    microbes to eavesdrop on their hosts or to conspire together to mount
    an attack.

    "We chose to study this in Pseudomonas because it is one of the
    deadliest infections for patients who undergo major surgery," said
    Alverdy. "We suspect something very similar, however, occurs in all
    sorts of infections."

    Inflammatory bowel disease patients, for example, have elevated
    cytokines--the chemical messengers that trigger an immune response--in
    the bowel. "These could signal the bug," said Alverdy, "then the bug
    strikes back and then the inflammation process snowballs." Because the
    bacteria in this case are "normal flora," people with no real infection
    develop a chronic disease.

    The battles between pathogens and their hosts have been going on for
    millions of years, Alverdy said, with each side constantly devising
    novel measures, countermeasures, and counter-countermeasures, including
    sophisticated mutual espionage.

    The discovery of antibiotics gave human hosts a temporary advantage,
    "but that seems to be waning a bit," he added. "We need to learn new
    ways to understand our germs and think about how to placate rather than
    annihilate them."

    The National Institutes for Health and the Canadian Institutes of
    Health research supported this research. Additional authors of the
    paper include Licheng Wu, Oscar Estrada, Olga Zaborina, Le Shen,
    Jonathan Kohler, Nachiket Patel, Mark Musch, Eugene Chang, Yang-Xin Fu,
    Michael Nishimura, and Jerrold Turner of the University of Chicago;
    Michael Jacobs of the University of Washington; and Robert Hancock of
    the University of British Columbia.

    Source: sciencedaily.com

  3. I'm interested in prevention. I saw a study several years ago, which
    included the information that a population using coconut oil (in Asia)
    had very low rates of lung cancer, regardless of whether they were
    chains smokers or never smoked.

    Mary Enig (fatty acid expert) has written about the importance of
    certain saturated fatty acids for lung health and resistance to
    "disease." If your diet is high in unsaturated fatty acids, which it
    almost certainly is, you are going to be much more susceptible to lung
    cancer and other cancers. Here's a recent report, for example, which
    just reiterates what I've been saying here for years (because
    scientists have been saying it for years, for example, Jay Whelan's
    1997 study about polyunsaturated fatty acids being signaling agents for
    cancer). And don't think that fish oil will cancel out all the bad
    effects of omega 6 PUFAs. These fatty acids are just as bad, though in
    somewhat different ways, depending upon the context.

    8/2/2005
    Omega-6 Fatty Acids Cause Prostate Tumor Cell Growth In Culture

    A study conducted at the San Francisco VA Medical Center (SFVAMC) has
    demonstrated that omega-6 fatty acids such as the fat found in corn oil
    promote the growth of prostate tumor cells in the laboratory. The study
    also identifies a potential new molecular target for anti-tumor drugs:
    an enzyme known as cPLA2, which plays a key role in the chain leading
    from omega-6 fatty acids to prostate tumor cell growth.

    The study was led by Millie Hughes-Fulford, PhD, director of the
    Laboratory of Cell Growth at SFVAMC and scientific advisor to the U.S.
    Undersecretary of Health for the Department of Veterans Affairs. It is
    being published in the September 2005 issue of Carcinogenesis, and is
    currently available online.

    Working with human prostate cancer cells in tissue culture,
    Hughes-Fulford and her fellow researchers identified for the first time
    a direct chain of causation: When introduced into prostate tumor cells
    in culture, omega-6 fatty acid causes the production of cPLA2, which
    then causes the production of the enzyme COX2. In turn, COX2 stimulates
    the release of PGE2, a hormone-like molecule that promotes cell growth.

    "What's important about this is that omega-6 fatty acids are found in
    corn oil and most of the oils used in bakery goods," says
    Hughes-Fulford, who is also an adjunct professor of medicine at the
    University of California, San Francisco (UCSF). "Which means that if
    you're eating a diet high in omega-6 fatty acids, it's possible that
    you're turning on this cancer cascade, which has been shown to be a
    common denominator in the growth of prostate, colorectal, and some
    breast cancers."

    The study points out that 60 years ago in the United States, the
    dietary ratio of omega-6 to omega-3, a beneficial fatty acid, was 1 to
    2. Today, the ratio is 25 to 1. Over that same 60 years, the incidence
    of prostate cancer in the U.S. has increased steadily.

    Hughes-Fulford also found that flurbiprofen, a non-steroidal
    anti-inflammatory drug commonly prescribed for arthritis, blocked the
    production of cPLA2 and broke the chain leading to cell growth. This
    means, she says, that new drugs might be developed that could
    specifically target cPLA2 and prevent COX2 from being released.

    "COX2 has been implicated in the growth of many types of tumors," she
    notes. "So if you can find a way to block that cascade in the tumor,
    starting with cPLA2, you might have a new way of modifying or slowing
    tumor growth."

    Hughes-Fulford points out that cPLA2 inhibitors would avoid the
    problems inherent in the class of drugs known as COX2 inhibitors. These
    drugs have been shown to be effective against tumor growth as well as
    in treating the pain associated with inflammatory conditions such as
    arthritis, but have been implicated in increased risk of cardiovascular
    problems in people who take them regularly. "COX2 inhibitors also
    inhibit prostacyclins, which are enzymes that are beneficial to the
    heart, and cPLA2 inhibitors would not affect those," she explains.

    In future research, Hughes-Fulford will be looking at the overall
    effect of different types of fatty acids on different tumor types in
    cell lines as well as human biopsies. She plans a study that will
    correlate type of fatty acid with tumor stage and grade in order to
    obtain a clearer picture of specific effects of different fats on tumor
    progression.

    Co-authors of the study were Raymond R. Tjandrawinata, PhD, of UCSF,
    Chai-Fei Li, BA, of SFVAMC, and Sina Sayyah, BA, of SFVAMC and UCSF.

    Science. 2005 Jul 29;309(5735):774-7.

    Recognition of host immune activation by Pseudomonas aeruginosa.

    Wu L, Estrada O, Zaborina O, Bains M, Shen L, Kohler JE, Patel N, Musch
    MW, Chang EB, Fu YX, Jacobs MA, Nishimura MI, Hancock RE, Turner JR,
    Alverdy JC.

    Department of Surgery, University of Chicago, Pritzker School of
    Medicine, Chicago, IL 60637, USA.

    It is generally reasoned that lethal infections caused by opportunistic
    pathogens develop permissively by invading a host that is both
    physiologically stressed and immunologically compromised. However, an
    alternative hypothesis might be that opportunistic pathogens actively
    sense alterations in host immune function and respond by enhancing
    their virulence phenotype. We demonstrate that interferon-gamma binds
    to an outer membrane protein in Pseudomonas aeruginosa, OprF, resulting
    in the expression of a quorum-sensing dependent virulence determinant,
    the PA-I lectin. These observations provide details of the mechanisms
    by which prokaryotic organisms are directly signaled by immune
    activation in their eukaryotic host.

    7/30/2005
    Immune System's Distress Signal Tells Bacteria When To Strike Back

    The human opportunistic pathogen, Pseudomonas aeruginosa, has broken
    the immune system's code, report researchers from the University of
    Chicago, enabling the bacteria to recognize when its host is most
    vulnerable and to launch an attack before the weakened host can muster
    its defenses.

    In the July 29, 2005 issue of Science, the researchers show how this
    lethal organism detects interferon-gamma, a chemical messenger the
    immune system uses to coordinate its efforts to get rid of bacteria.
    When these bacteria intercept this message, they recognize it as a
    threat, assess their own numbers, and if they have sufficient strength,
    activate genes that quickly transform them from benign passengers in
    the bowel into deadly blood-stream invaders.

    "Most of the time these microbes are content to live and grow in our
    intestines," said John Alverdy, MD, professor of surgery at the
    University of Chicago and director of the study. "They don't feel the
    need or even look for the opportunity to attack. But when they detect a
    threat, they have a remarkably sophisticated defense plan, based,
    unfortunately, on the notion that the best defense is an overwhelming
    offense."

    Pseudomonas aeruginosa is ubiquitous. It lives in all sorts of moist
    places, including damp soil and on the surface of vegetables, as well
    as in streams, faucets, and drinking fountains. It is often a long-term
    bowel tenant, colonizing the intestines of about three percent of
    healthy people.

    In the bowel this germ is usually harmless, but it can turn deadly,
    causing gut-derived sepsis. It is also a frequent cause of infections
    after major surgery.

    Physicians have theorized, said Alverdy, that germs such as Pseudomonas
    are always "probing for a weakness in the host and are ready and
    willing to strike whenever they find one." He and his colleagues,
    however, are testing an alternative theory: that "bacteria are
    perfectly content in their niche until signals from the host--usually
    during stress, such as after major surgery--let them know there's a
    problem."

    For Pseudomonas, detecting interferon-gamma, "is like receiving a
    demolition notice from your landlord," Alverdy said. "It lets them know
    they need to find a new home. They don't take that news any better than
    we would."

    A vulnerable host, like a condemned home, is a liability, a threat to
    its tenants' survival. Pseudomonas, however, has the tools to engineer
    its own escape--by killing off the host.

    This wily pathogen can evade a host's immune system. It can repel
    antibiotics, secrete toxins similar to those used by anthrax, latch
    onto the bowel wall, bore its way through, and flow into the blood
    stream. As a consequence, patients with widespread Pseudomonas
    infection often die within a few days.

    Alverdy and colleagues were able to pinpoint key early steps of this
    lethal process. The transformation starts when a weakened host tries to
    boost its defenses against any possible invasion. The host's T cells
    release chemical signals that activate the immune system. One of those
    signals, interferon-gamma, is intercepted by a protein, called OprF,
    found on the outer membrane surface of Pseudomonas. This serves an
    early warning system.

    Once Pseudomonas detects the first signs of a brewing immune response,
    they also begin to prepare for battle, gathering information and
    responding with their own counteroffensive.

    Their first move is a process called quorum sensing, which bacteria use
    to gauge their own numbers. When interferon-gamma binds with OprF on
    the bacterial cell surface, it activates a gene called rhII. RhII
    triggers synthesis and secretion of a bacterial signaling molecule
    called C4-HSL. By measuring the amount of C4-SHL in their environment
    these bacteria can estimate their own numbers and density.

    If they feel they are sufficiently numerous, they produce two virulence
    factors, molecular weapons known as PA-I and Pyocyanin. PA-I causes the
    barrier cells that line the host's bowel to become more permeable,
    which renders them more susceptible to the microbe's toxins. Pyocyanin
    enhances the germ's ability to pass through the weakened bowel wall,
    enter the bloodstream and invade tissue.

    "Our goal," Alverdy said, "is to understand the many steps in this
    process and use that knowledge to find novel ways to intervene, to stop
    the infection before it starts rather than trying to kill all the
    germs."

    Many harmful bacteria have already learned how to resist the drugs
    developed to treat them. Scientists are now looking at alternatives,
    such as ways to block or scramble the chemical messages that allow
    microbes to eavesdrop on their hosts or to conspire together to mount
    an attack.

    "We chose to study this in Pseudomonas because it is one of the
    deadliest infections for patients who undergo major surgery," said
    Alverdy. "We suspect something very similar, however, occurs in all
    sorts of infections."

    Inflammatory bowel disease patients, for example, have elevated
    cytokines--the chemical messengers that trigger an immune response--in
    the bowel. "These could signal the bug," said Alverdy, "then the bug
    strikes back and then the inflammation process snowballs." Because the
    bacteria in this case are "normal flora," people with no real infection
    develop a chronic disease.

    The battles between pathogens and their hosts have been going on for
    millions of years, Alverdy said, with each side constantly devising
    novel measures, countermeasures, and counter-countermeasures, including
    sophisticated mutual espionage.

    The discovery of antibiotics gave human hosts a temporary advantage,
    "but that seems to be waning a bit," he added. "We need to learn new
    ways to understand our germs and think about how to placate rather than
    annihilate them."

    The National Institutes for Health and the Canadian Institutes of
    Health research supported this research. Additional authors of the
    paper include Licheng Wu, Oscar Estrada, Olga Zaborina, Le Shen,
    Jonathan Kohler, Nachiket Patel, Mark Musch, Eugene Chang, Yang-Xin Fu,
    Michael Nishimura, and Jerrold Turner of the University of Chicago;
    Michael Jacobs of the University of Washington; and Robert Hancock of
    the University of British Columbia.

    Source: sciencedaily.com

  4. Kamalakar Pasupuleti said:

    The speed with which Peter Jennings the versatile anchor of ABC News
    succumbed to lung cancer is shocking .

    COMMENT:

    Not if they killed him with chemo, it isn't. He had a terminal
    condition in any case, but there are some cancers probably best left
    untreated (except with paliative radiotherapy) and many types of lung
    cancer fall into this category, after they've spread beyond the point
    of surgical removal. Chemo doesn't slow them down much, and it
    certainly quite often kills patients (they lose weight and get
    pneumonia much faster, and die). Alas, oncologists continue to "offer"
    chemo "paliatively" even in cases where it hasn't been shown to affect
    life span, and certainly where it can negatively affect life quality.
    In these cases a lot of patients might be better off just saying no to
    cytotoxic-type chemotherapy.

    (Radiation, by contrast, is a relatively well-tolerated cancer
    treatment, causing few problems with quality of life, and rarely
    contributing to death).

    Understand, I'm not against chemo per se. In some cancers at some
    stages (and even a few solid cancers at ANY stage), chemotherapy can be
    lifesaving, and you'd be a fool not to use it. In a few others,
    cytotoxic chemo does work paliatively, cutting bone pain from
    metastases, even when everyone knows it won't be curative. This is
    particularly helpful in very low and painful cancers that metastasize
    to bone, with breast cancer being a prime example.

    But at the same time, chemotherapy is overused, in general, in
    oncology. It's used when the patient isn't in pain from the tumor, and
    when there's little reason to believe it's doing anything to extend
    life. Oncologists earn most of their money by giving chemotherapy, and
    that might be part of the reason. However, the unwillingness of
    patients to just "give up" and do nothing without continuing to
    "fight," is another. Wisdom is needed when you have something like
    inoperable lung cancer. It is fine to grasp at straws when they're
    inexpensive and reasonably harmless straws. Chemotherapy often isn't
    that kind of thing.

    SBH

  5. Sbharrisatsignix.netcom.com said:
    Kamalakar Pasupuleti said:

    The speed with which Peter Jennings the versatile anchor of ABC News
    succumbed to lung cancer is shocking .

    COMMENT:

    Not if they killed him with chemo, it isn't. He had a terminal
    condition in any case, but there are some cancers probably best left
    untreated (except with paliative radiotherapy) and many types of lung
    cancer fall into this category, after they've spread beyond the point
    of surgical removal. Chemo doesn't slow them down much, and it
    certainly quite often kills patients (they lose weight and get
    pneumonia much faster, and die). Alas, oncologists continue to "offer"
    chemo "paliatively" even in cases where it hasn't been shown to affect
    life span, and certainly where it can negatively affect life quality.
    In these cases a lot of patients might be better off just saying no to
    cytotoxic-type chemotherapy.

    (Radiation, by contrast, is a relatively well-tolerated cancer
    treatment, causing few problems with quality of life, and rarely
    contributing to death).

    Understand, I'm not against chemo per se. In some cancers at some
    stages (and even a few solid cancers at ANY stage), chemotherapy can be
    lifesaving, and you'd be a fool not to use it. In a few others,
    cytotoxic chemo does work paliatively, cutting bone pain from
    metastases, even when everyone knows it won't be curative. This is
    particularly helpful in very low and painful cancers that metastasize
    to bone, with breast cancer being a prime example.

    But at the same time, chemotherapy is overused, in general, in
    oncology. It's used when the patient isn't in pain from the tumor, and
    when there's little reason to believe it's doing anything to extend
    life. Oncologists earn most of their money by giving chemotherapy, and
    that might be part of the reason. However, the unwillingness of
    patients to just "give up" and do nothing without continuing to
    "fight," is another. Wisdom is needed when you have something like
    inoperable lung cancer. It is fine to grasp at straws when they're
    inexpensive and reasonably harmless straws. Chemotherapy often isn't
    that kind of thing.

    SBH

    And herceptin?

  6. Sbharrisatsignix.netcom.com said:
    Kamalakar Pasupuleti said:

    The speed with which Peter Jennings the versatile anchor of ABC News
    succumbed to lung cancer is shocking .

    COMMENT:

    Not if they killed him with chemo, it isn't. He had a terminal
    condition in any case, but there are some cancers probably best left
    untreated (except with paliative radiotherapy) and many types of lung
    cancer fall into this category, after they've spread beyond the point
    of surgical removal. Chemo doesn't slow them down much, and it
    certainly quite often kills patients (they lose weight and get
    pneumonia much faster, and die). Alas, oncologists continue to "offer"
    chemo "paliatively" even in cases where it hasn't been shown to affect
    life span, and certainly where it can negatively affect life quality.
    In these cases a lot of patients might be better off just saying no to
    cytotoxic-type chemotherapy.

    (Radiation, by contrast, is a relatively well-tolerated cancer
    treatment, causing few problems with quality of life, and rarely
    contributing to death).

    Understand, I'm not against chemo per se. In some cancers at some
    stages (and even a few solid cancers at ANY stage), chemotherapy can be
    lifesaving, and you'd be a fool not to use it. In a few others,
    cytotoxic chemo does work paliatively, cutting bone pain from
    metastases, even when everyone knows it won't be curative. This is
    particularly helpful in very low and painful cancers that metastasize
    to bone, with breast cancer being a prime example.

    But at the same time, chemotherapy is overused, in general, in
    oncology. It's used when the patient isn't in pain from the tumor, and
    when there's little reason to believe it's doing anything to extend
    life. Oncologists earn most of their money by giving chemotherapy, and
    that might be part of the reason. However, the unwillingness of
    patients to just "give up" and do nothing without continuing to
    "fight," is another. Wisdom is needed when you have something like
    inoperable lung cancer. It is fine to grasp at straws when they're
    inexpensive and reasonably harmless straws. Chemotherapy often isn't
    that kind of thing.

    SBH

    And herceptin?

  7. Quoted message said:

    And herceptin?

    Not cytotoxic and thus not a big risk. Fairly benign clinically (though
    very expensive).

  8. Quoted message said:

    And herceptin?

    Not cytotoxic and thus not a big risk. Fairly benign clinically (though
    very expensive).

  9. "Kamalakar Pasupuleti" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    The speed with which Peter Jennings the versatile anchor of ABC News
    succumbed to lung cancer is shocking . What are the early symptoms of
    lung cancer and how early it can be detected ?

    Voice changes, couching, shortness of breath. Usually, by the time you have
    other symptoms (loss of weight, pain from metatstic disease), it is time to
    make an appointment with the coffin maker.

    Jeff

    Quoted message said:

    Kam

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

  10. "Kamalakar Pasupuleti" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    The speed with which Peter Jennings the versatile anchor of ABC News
    succumbed to lung cancer is shocking . What are the early symptoms of
    lung cancer and how early it can be detected ?

    Voice changes, couching, shortness of breath. Usually, by the time you have
    other symptoms (loss of weight, pain from metatstic disease), it is time to
    make an appointment with the coffin maker.

    Jeff

    Quoted message said:

    Kam

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

  11. "Jeff" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:

    Voice changes, couching, shortness of breath. Usually, by the time you have
    other symptoms (loss of weight, pain from metatstic disease), it is time to
    make an appointment with the coffin maker.

    Jeff

    Very nice of you Jeff , but what is the earliest these
    symptoms develop and how early are the indications to the individual
    and also the physician . In India atleast 2 chest x-rays are normal
    for every individual above 50 periodically . Will a chest x-ray
    reveal any early stage indications of the disease .

    Regards ,
    Kam

    Quoted message said:
    Quoted message said:

    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

  12. "Kamalakar Pasupuleti" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    "Jeff" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:

    Voice changes, couching, shortness of breath. Usually, by the time you
    have
    other symptoms (loss of weight, pain from metatstic disease), it is time
    to
    make an appointment with the coffin maker.

    Jeff

    Very nice of you Jeff , but what is the earliest these
    symptoms develop and how early are the indications to the individual
    and also the physician .

    Usually by the time the lung cancer is discovered, it is too late. For
    these symptoms to develop, the lung cancer has to be in just the right
    place. And if a cough occurs in the middle of winter, one might write it off
    as a cold or infection or just the cold, which could delay treatment for a
    few more months.

    Quoted message said:

    In India atleast 2 chest x-rays are normal
    for every individual above 50 periodically . Will a chest x-ray
    reveal any early stage indications of the disease .

    A chest X-Ray can reveal the disease early. Often, after it has spread.
    There are new treatments that make early diagnosis (even if the cancer has
    spread) treatable in a small per centage of people. I don't know if these
    treatments are available in India to most people. There may be other
    reasons why chest X-Rays are done, like looking for TB.

    However, I am not up-to-date on the newest treatments or the diagnostic
    tests.

    The best way to avoid dying from lung cancer is to not smoke.

    Jeff

    Quoted message said:

    Regards ,
    Kam

    Quoted message said:
    Quoted message said:
    Quoted message said:

    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

  13. "Kamalakar Pasupuleti" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    "Jeff" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:

    Voice changes, couching, shortness of breath. Usually, by the time you
    have
    other symptoms (loss of weight, pain from metatstic disease), it is time
    to
    make an appointment with the coffin maker.

    Jeff

    Very nice of you Jeff , but what is the earliest these
    symptoms develop and how early are the indications to the individual
    and also the physician .

    Usually by the time the lung cancer is discovered, it is too late. For
    these symptoms to develop, the lung cancer has to be in just the right
    place. And if a cough occurs in the middle of winter, one might write it off
    as a cold or infection or just the cold, which could delay treatment for a
    few more months.

    Quoted message said:

    In India atleast 2 chest x-rays are normal
    for every individual above 50 periodically . Will a chest x-ray
    reveal any early stage indications of the disease .

    A chest X-Ray can reveal the disease early. Often, after it has spread.
    There are new treatments that make early diagnosis (even if the cancer has
    spread) treatable in a small per centage of people. I don't know if these
    treatments are available in India to most people. There may be other
    reasons why chest X-Rays are done, like looking for TB.

    However, I am not up-to-date on the newest treatments or the diagnostic
    tests.

    The best way to avoid dying from lung cancer is to not smoke.

    Jeff

    Quoted message said:

    Regards ,
    Kam

    Quoted message said:
    Quoted message said:
    Quoted message said:

    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

  14. I'm really happy to hear you say this, because it seems almost
    impossible to discuss this. When you say cancer, people often become
    incapable of being rationale. Everyone wants the biggest gun, for
    themselves and for their loved ones. Even if there is no evidence.

    But then I can say this easily, today. This time last week, I still had
    every chance of being among the former group.

    "The difference in the death rate between the Herceptin and
    non-Herceptin groups was 2 per cent after three years, and 4 per cent
    after four years."
    G&M

    Yes. It's me.

  15. Jeff a écrit dans le message
    <[email hidden]>...

    Quoted message said:


    "Kamalakar Pasupuleti" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    "Jeff" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:

    Voice changes, couching, shortness of breath. Usually, by the time you
    have
    other symptoms (loss of weight, pain from metatstic disease), it is time
    to
    make an appointment with the coffin maker.

    Jeff

    Very nice of you Jeff , but what is the earliest these
    symptoms develop and how early are the indications to the individual
    and also the physician .

    Usually by the time the lung cancer is discovered, it is too late. For
    these symptoms to develop, the lung cancer has to be in just the right
    place. And if a cough occurs in the middle of winter, one might write it


    off

    Quoted message said:

    as a cold or infection or just the cold, which could delay treatment for a
    few more months.

    Quoted message said:

    In India atleast 2 chest x-rays are normal
    for every individual above 50 periodically . Will a chest x-ray
    reveal any early stage indications of the disease .

    A chest X-Ray can reveal the disease early. Often, after it has spread.
    There are new treatments that make early diagnosis (even if the cancer has
    spread) treatable in a small per centage of people. I don't know if these
    treatments are available in India to most people. There may be other
    reasons why chest X-Rays are done, like looking for TB.

    However, I am not up-to-date on the newest treatments or the diagnostic
    tests.

    The best way to avoid dying from lung cancer is to not smoke.

    Jeff

    Quoted message said:

    Regards ,
    Kam

    Quoted message said:
    Quoted message said:

    > Posted via Mailgate.ORG Server - http://www.Mailgate.ORG


    The "Cat Scan" can detect the cancer very early however there are many false
    positives. Not smoking (anything)
    is the best advice. Many "dope smokers" are now coming down with lung
    cancer claiming that the never smoked because they did not use tobacco.
    Smoking
    any thing is dangerous and cannabis is many times worse than tobacco!

    JL

  16. Jeff a écrit dans le message
    <[email hidden]>...

    Quoted message said:


    "Kamalakar Pasupuleti" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    "Jeff" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:

    Voice changes, couching, shortness of breath. Usually, by the time you
    have
    other symptoms (loss of weight, pain from metatstic disease), it is time
    to
    make an appointment with the coffin maker.

    Jeff

    Very nice of you Jeff , but what is the earliest these
    symptoms develop and how early are the indications to the individual
    and also the physician .

    Usually by the time the lung cancer is discovered, it is too late. For
    these symptoms to develop, the lung cancer has to be in just the right
    place. And if a cough occurs in the middle of winter, one might write it


    off

    Quoted message said:

    as a cold or infection or just the cold, which could delay treatment for a
    few more months.

    Quoted message said:

    In India atleast 2 chest x-rays are normal
    for every individual above 50 periodically . Will a chest x-ray
    reveal any early stage indications of the disease .

    A chest X-Ray can reveal the disease early. Often, after it has spread.
    There are new treatments that make early diagnosis (even if the cancer has
    spread) treatable in a small per centage of people. I don't know if these
    treatments are available in India to most people. There may be other
    reasons why chest X-Rays are done, like looking for TB.

    However, I am not up-to-date on the newest treatments or the diagnostic
    tests.

    The best way to avoid dying from lung cancer is to not smoke.

    Jeff

    Quoted message said:

    Regards ,
    Kam

    Quoted message said:
    Quoted message said:

    > Posted via Mailgate.ORG Server - http://www.Mailgate.ORG


    The "Cat Scan" can detect the cancer very early however there are many false
    positives. Not smoking (anything)
    is the best advice. Many "dope smokers" are now coming down with lung
    cancer claiming that the never smoked because they did not use tobacco.
    Smoking
    any thing is dangerous and cannabis is many times worse than tobacco!

    JL

  17. "Jeff" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:

    A chest X-Ray can reveal the disease early. Often, after it has spread.
    There are new treatments that make early diagnosis (even if the cancer has
    spread) treatable in a small per centage of people. I don't know if these
    treatments are available in India to most people. There may be other
    reasons why chest X-Rays are done, like looking for TB.

    However, I am not up-to-date on the newest treatments or the diagnostic
    tests.

    The best way to avoid dying from lung cancer is to not smoke.

    Jeff

    Quoted message said:

    Regards ,
    Kam


    In India there are chain smokers and
    many in rural area also smoke raw tobacco leaves , but the
    lung cancer is very rare . Is it possible the tobacco is
    processed and mixed with some chemicals here in the west .

    Kam

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

  18. Kamalakar Pasupuleti said:

    "Jeff" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:

    A chest X-Ray can reveal the disease early. Often, after it has spread.
    There are new treatments that make early diagnosis (even if the cancer has
    spread) treatable in a small per centage of people. I don't know if these
    treatments are available in India to most people. There may be other
    reasons why chest X-Rays are done, like looking for TB.

    However, I am not up-to-date on the newest treatments or the diagnostic
    tests.

    The best way to avoid dying from lung cancer is to not smoke.

    Jeff

    Quoted message said:

    Regards ,
    Kam


    In India there are chain smokers and
    many in rural area also smoke raw tobacco leaves , but the
    lung cancer is very rare . Is it possible the tobacco is
    processed and mixed with some chemicals here in the west .

    Kam

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

    The correlation between cigarettes and lung cancer is not as strong as
    many believe it to be. There is actually a stronger correlation between
    diesel fuel and lung cancer than there is between tobacco and lung
    cancer.

    I believe that the key is in the balance between the individuals
    long-term nutritional status and his or her exposure to cancer-causing
    substances. If the nutritional status is for the most part excellent,
    the individual is less likely to develop cancers, conversely if the
    individual is poorly nourished for a period of time when he or she is
    exposed to carcinogenic substances, they are more likely to develop
    cancers.

    The key nutrients are some of the basic vitamins and minerals, notable
    vitamin C, the B vitamins, L-Lysine and L-Proline (among others).

    Good nutrition protects against most chronic diseases including
    cancers. Good nutrition is maximizing good fresh nutrient-dense whole
    foods and minimizing processed, refined, nutrient-depleted manufactured
    foods.

    TC

  19. "TC" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:


    Kamalakar Pasupuleti said:

    "Jeff" <[email hidden]> wrote in message
    news:[email hidden]

    Quoted message said:

    TC


    Good to read . Does secondary smoking any effect
    on the lung cancer ?

    Kam

    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

  20. Kam:

    You aren't listening to me, and yet you are saying the same thing. If
    they are not using highly usaturated fat sources, that is why they
    don't get lung cancer even though they smoke.

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