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HealthDay - FRIDAY, Jan. 4 (HealthDay News) -- The nerve cell death that helps drive Parkinson's disease may be triggered by a harmful modification in a particular nerve cell protein, new research reveals.

Iressa as Good as Chemotherapy for Lung Cancer (HealthDay)

Weight-Alzheimer link different for men and women (Reuters)

Saturated fat tied to small intestine cancers (Reuters)

Health Tip: Signs That a Child May Be Autistic (HealthDay)

Clinical Trials Update: Nov. 21, 2008 (HealthDay)

Study: Pill as good as chemo on lung cancer, but costlier (AP)

HIV tests not yet as routine as cholesterol checks (AP)

Pfizer drops bid to sell Viagra over the counter in Europe (AFP)

Obese have right to 2 airline seats: Canada court (Reuters)

Teen lives 4 months with no heart, leaves hospital (AP)

Surgeon who did first US heart transplant dies (AP)

Insurers make pitch for health coverage mandate (AP)

Sen. Kennedy returns to work after June surgery (Reuters)

Psychological Counseling Boosts Breast Cancer Outcomes (HealthDay)

Medicare wants limits for weight loss surgery (Reuters)

Magnesium impacts calcium's anti-cancer effect (Reuters)

Obese kids have prematurely aged neck arteries (Reuters)

Family history can trump breast cancer gene test (AP)

Clinical Trials Update: Nov. 17, 2008 (HealthDay)

Fewer Brain 'Tangles' May Mean Smarter Old Age (HealthDay)