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How Immune Cells May Help Predict Alzheimer's Risk
What if you could test your risk for Alzheimer"s disease much like your cholesterol levels - through a simple blood test?
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White House Budget Chief Says Issue Of Abortion Coverage In Health Reform Still Under Debate
In an appearance on "Fox News Sunday," White House Office of Management and Budget Director Peter Orszag said that he is "not prepared to say explicitly" whether health care reform legislation would prohibit the use of federal tax revenue to fund abortion coverage, the New York Times reports. Orszag"s statement came in reply to a question asking whether he was prepared to say that "no taxpayer money will go to pay for abortions." Orszag said, "It"s obviously a controversial issue, and it"s one of the questions that is playing out in the debate" (Pear/Liptak, New York Times, 7/20).Sen. Judd Gregg (R-N.H.), who also appeared on "Fox News Sunday," said, "No matter what your views are on abortion, you shouldn"t ask people to use their tax dollars if they think that abortion is taking a life." Gregg added, "I would hate to see the health care debate go down over that issue. We do really need health care reform, and it has to be substantive. ... So hopefully we won"t get ourselves wrapped around the wheel of abortion in this debate" (FoxNews.com, 7/19). According to the Times, there is an ongoing behind-the-scenes debate over handling abortion coverage in health overhaul legislation. The debate affects both the public insurance plan the legislation would create and private insurers, who would receive tens of billions of dollars in federal subsidies to expand coverage for low- and moderate-income U.S. residents. A provision in the House health reform bill (HR 3200) calls for a federal advisory committee to advise the HHS secretary on an "essential benefits package" that most insurers would be required to provide. Abortion-rights opponents want abortion coverage excluded from the package, while abortion-rights advocates say the decision should be left to medical professionals. House committees working on health reform legislation have rejected Republican amendments that would have restricted abortion coverage. The Hyde Amendment, first enacted in 1976, prohibits the use of federal Medicaid money for abortion services. However, abortion-rights opponents argue that federally subsidized coverage of the uninsured would not be subject to the existing restrictions. The National Right to Life Committee issued an analysis of the House bill, stating, "There is no doubt that coverage of abortion will be mandated, unless Congress explicitly excludes abortion from the scope of federal authority to define "essential benefits."" According to the group, even if the HHS secretary did not require abortion coverage, "federal courts would interpret the broadly worded mandatory categories of coverage to include abortion" (New York Times, 7/20).
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Huntington's: Researchers Gain Insight Into Mechanism Underlying The Disease
Researchers at the University of Kentucky Markey Cancer Center and Graduate Center for Toxicology (GCT) have gained new insight into the genetic mechanisms underlying Huntington"s disease and other neurodegenerative or neuromuscular disorders caused by trinucleotide repeats (or TNRs) in DNA.
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Gastrin Plays Significant Role In Helicobacter-Induced Stomach Cancer

A group led by Columbia University Medical Center"s Timothy Wang, M.D., has studied the role of Helicobacter infection in the development of stomach cancer and found that the hormone gastrin, which stimulates secretion of gastric acid, plays a key role in the development of Helicobacter-induced stomach cancer, and may have distinct effects on carcinogenesis in different parts of the stomach. More than 50 percent of the world"s population is infected with Helicobacter, which causes chronic inflammation of the stomach lining and is strongly linked to the development of gastric ulcers and stomach cancer. Stomach cancer is the second leading cause of cancer-related deaths worldwide. Helicobacter infection results in increased expression of gastrin, although its role in cancer development has been unclear. High levels of gastrin lead to the development of stomach cancer, but absence of gastrin has been shown to increase the numbers of tumors in the gastric antrum, the lower section of the stomach that empties into the small intestine. To reconcile this apparent discrepancy, a group led by Dr. Wang studied Helicobacter infection and stomach cancer in animal models with either high expression of gastrin or no gastrin at all. They found that Helicobacter infection in mice with high levels of gastrin resulted in cancer of the gastric corpus (main body of the stomach), whereas infection in gastrin-deficient mice developed cancer in the gastric antrum. The latest research by Dr. Wang and his colleagues appears in the July 2009 issue of The American Journal of Pathology. Dr. Wang, with CUMC"s Dr. Shigeo Takaishi, and their colleagues, argue that gastrin may serve as a "rheostat" for the stomach. Gastrin likely plays a central role in the safety network for the protection from mucosal damage caused by gastric acid secretion induced by gastrin itself, and thus either too much or too little gastrin could predispose a person to stomach cancer. Therefore, clinicians in the future may need to be more careful about prescribing acid-suppressive drugs for long-term use in patients infected with Helicobacter, Dr. Wang says. In future studies, Dr. Wang and colleagues plan to study "host factors other than gastrin that are also important for Helicobacter-associated gastric carcinogenesis." These include specific cytokines and chemokines induced by Helicobacter infection and modulated by gastrin, that link inflammation and cancer. In addition, they plan to study the role of other non-Helicobacter bacteria that colonize the stomach when acid secretion is suppressed, since bacterial overgrowth likely contributes to gastric carcinogenesis. The work was supported by grants from the National Institutes of Health, the Medical Research Council, the Welcome Trust and the Wolfson Foundation. Columbia University Medical Center provides international leadership in basic, pre-clinical and clinical research, in medical and health sciences education, and in patient care. The medical center trains future leaders and includes the dedicated work of many physicians, scientists, public health professionals, dentists, and nurses at the College of Physicians & Surgeons, the Mailman School of Public Health, the College of Dental Medicine, the School of Nursing, the biomedical departments of the Graduate School of Arts and Sciences, and allied research centers and institutions. Established in 1767, Columbia"s College of Physicians & Surgeons was the first institution in the country to grant the M.D. degree. Among the most selective medical schools in the country, the school is home to the largest medical research enterprise in New York State and one of the largest in the country. The American Journal of Pathology is the official journal of the American Society for Investigative Pathology. It seeks to publish high-quality, original papers on the cellular and molecular biology of disease. The editors accept manuscripts that advance basic and translational knowledge of the pathogenesis, classification, diagnosis, and mechanisms of disease, without preference for a specific analytic method. High priority is given to studies on human disease and relevant experimental models using cellular, molecular, animal, biological, chemical, and immunological approaches in conjunction with morphology. Columbia University Medical Center


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