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NEW YORK -- Men who have at least one son have a 40% lower risk for developing prostate cancer than doting dads with only daughters. Why? The Y chromosome may hold the answer, speculated researchers here.

BIRMINGHAM, Ala. -- Early-stage Parkinson's disease responded with significant relief of symptoms for at least six months with an investigational skin patch designed to deliver a steady dose of the dopamine agonist rotigotine, researchers here reported.

DELHI, India -- Prenatal vitamin and mineral supplements may benefit babies born to undernourished pregnant women, researchers here have found.

TAIPEI, Taiwan -- Relapse-free and overall survival for non-small-cell lung cancer can be predicted by a molecular signature with five specific genes, researchers here reported.

SAN ANTONIO -- Among the major breast cancer events of 2006, there was a report of a dramatic drop in the annual incidence, evidence that an osteoporosis drug may prevent invasive disease, and encouraging reports about an investigational therapy.

NEW YORK -- The next step in assisted reproduction may be a uterus transplant, according to researchers here.

ATLANTA -- Binge drinking is common among high school students and is tied to other risky behaviors, according to a national survey by the CDC.

WASHINGTON -- The maternal age of 35 should no longer be the primary benchmark for testing pregnancies for Down's syndrome, according to new recommendations from the American College of Obstetricians and Gynecologists.

An 82-year-old woman consulted her ophthalmologist because the vision in her left eye was becoming progressively blurrier. The patient was pseudophakic and had bilateral glaucoma, for which she used latanoprost ophthalmic solution.

An 82-year-old woman with a history of wet age-relatedmacular degeneration in both eyes presented for a3-month follow-up visit. She had previously undergonelaser treatment for bilateral subretinal neovascularmembranes. She has noticed a new black area in thevision of her left eye and periodic flashes of light inthat eye.

The authors report a case of adult-onset acute lymphoblastic leukemia (ALL) presenting with a right upper lobe infiltrate associated with acute fibrinous and organizing pneumonia (AFOP), which resolved spontaneously during the course of chemotherapy.

A study conducted in France provides further evidence of how allergic rhinitis adversely affects quality of life. Léger and associates found that allergic rhinitis impairs all dimensions of sleep quality.

For patients with pulmonary arterial hypertension (PAH) who remain symptomatic despite therapy with bosentan, the addition of inhaled iloprost is beneficial, according to a study by McLaughlin and colleagues.

ABSTRACT: Irritable bowel syndrome (IBS) is characterized by abdominal pain or discomfort, bloating, and constipation or diarrhea; the pain is typically relieved by defecation. The diagnosis is not one of exclusion; it can be made based on the answers to a few key questions and the absence of "alarm" symptoms. Fiber therapy, the elimination of particular foods, and regulation of bowel function can help relieve symptoms. Tegaserod or polyethylene glycol can be used to treat IBS with constipation. Loperamide and alosetron are of benefit in IBS with diarrhea (although the latter carries a small risk of ischemic colitis). Low-dose tricyclic antidepressants may be used to treat the abdominal pain associated with IBS. Probiotic therapy or rifaximin may help reduce bloating. Psychological therapies seem to improve well-being in patients with IBS.

With the significant rise in methicillin-resistant Staphylococcus aureus (MRSA) infections, a small rise in the number of cases of Clostridium difficile colitis appears to be an unfortunate but unpreventable consequence of using the few effective antibiotics remaining that can be prescribed in the outpatient setting.

On a warm August day, a 79-year-old man is hospitalized because of progressive lethargy over the past week. Previously, he was alert and able to converse. He has no chest pain, dyspnea, or cough. His history includes hypertension of unknown duration, chronic obstructive pulmonary disease, and a recent hospitalization for pneumonia.

For the past year, we have been working to develop an Internet search engine for practicing clinicians (rather than consumers or researchers) that would be more selective than Google but more comprehensive than PubMed/Medline.

A 40-year-old Hispanic homemaker is admitted with a 3-week history of high fever, chest pain, and a dry, irritating cough. Her illness began insidiously with increasing right upper chest pain that is sharp, pleuritic, and rates a 6 on a pain scale of 1 to 10. The pain is associated with temperatures of up to 38.8°C (102°F) and chills, rigors, and profuse sweating that increase in the evening. Worsening dyspnea has been accompanied by a drop in effort tolerance.