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PADOVA, Italy -- It is the number of back-to-back hot days, not record setting temperatures, that transforms "dog days" from public discomfort to public health concern, reported researchers here.

MINNEAPOLIS -- Better prevention and treatment of end-stage renal disease have led to a clinical payoff but have failed to ease the financial burden, the latest data show.

MINNEAPOLIS -- Even devoid of smoke, tobacco remains a carcinogenic hazard, found researchers here.

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BONN, Germany -- MRI outperformed mammography in detecting ductal carcinoma in situ, especially high-grade lesions, researchers here found.

BIRMINGHAM, England -- Warfarin's stroke prevention benefits extend to the elderly -- without increasing the risk of major bleeds.

NEW YORK -- Bone-generating osteoblasts secrete a protein that appears to regulate insulin function and glucose metabolism, revealing an endocrine role for the skeleton, researchers here said.

ANN ARBOR, Mich. -- Common complaints of aging such as memory problems, falls, or incontinence may be overlooked by clinicians focused on chronic diseases, found investigators here.

BASEL, Switzerland -- Interferon therapy in early multiple sclerosis significantly reduced the risk of progression to clinical disease and disability, investigators here reported.

JENKINTOWN, Pa. -- Temsirolimus (Torisel) and the combination of bevacizumab (Avastin) plus interferon are now first-line treatment options for relapsed or unresectable stage IV kidney cancer.

ROCKVILLE, Md. -- For the second time in as many weeks, the FDA has issued a botulism toxin warning; this time the product is 14.5 ounce cans of French cut green beans manufactured by a Wisconsin food processor.

CAMBRIDGE, England -- Adding serum sodium levels to the mix of factors considered when allocating donor livers may help improve graft and recipient survival, authors of two studies reported.

WASHINGTON -- About 45% of the magazine advertising for beer, wine, and "alcopop" appears in publications with 15% to 30% of their circulation among adolescents, according to a national analysis.

BRUSSELS, Belgium -- For the first time, ovarian tissue transplantation between nonidentical sisters has successfully restored fertility, which opens the door for transplantation between compatible, unrelated women.

ROCHESTER, Minn. -- Obesity is more than twice as likely to be treated seriously if physicians jot the formal diagnosis down in medical records -- a relatively uncommon act by clinicians here.

MINNEAPOLIS -- Progressively more stringent safety standards for blood donation have unexpectedly cut the national donor pool to 37.8% of the U.S. population, researchers here found.

MINNEAPOLIS -- Myocardial infarction patients can be transported quickly and safely for percutaneous intervention at facilities more than 200 miles away, investigators in a model transfer program have found.

HOUSTON -- The rise of a urinary protein may be a quicker way than the standard test to diagnose acute kidney injury in children after a critical illness, investigators here reported.