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A framework for major depressive disorder

Genes, psychological adversity in childhood, and recent or ongoing psychological stress may combine to cause major depression, write Dr. Sanjay Mathew and colleagues from Mount Sinai School of Medicine in New York in a review published in CMAJ.

2 Feb 2009

MR spectroscopy may help avoid invasive procedures and treatments for recurrent brain lesions

A clinical decision model which uses MR spectroscopy to help physicians differentiate between recurrent tumors and changes in the brain tissue due to radiation treatments, may help patients avoid invasive procedures and treatments, according to a study performed at the University of Michigan Health System in Ann Arbor, MI.

2 Feb 2009

CT and fiber-coated surgical microcoils help locate small lung nodules

A new technique combining computed tomography (CT) with fiber-coated surgical microcoils allows physicians to successfully locate and remove small lung nodules without the need for a more invasive procedure, according to a new study published in the February issue of Radiology.

2 Feb 2009

Use of mammography in U.S. decreases

Nearly two thirds of the states in the US saw a small decrease in mammography utilization between the years 2000 and 2006, according to a study performed at the Centers for Disease Control and Prevention (CDC) in Atlanta, GA.

2 Feb 2009

Men in 40's with erectile dysfunction at double risk of heart disease

Men who experience erectile dysfunction between the ages of 40 and 49 are twice as likely to develop heart disease than men without dysfunction, according to a new Mayo Clinic study.

2 Feb 2009

Rapid new technique for detection of Salmonella

In the hours following an outbreak of Salmonella , there are many questions.

2 Feb 2009

Insulin may slow or prevent damage caused by toxic proteins in Alzheimer's disease

A Northwestern University-led research team reports that insulin, by shielding memory-forming synapses from harm, may slow or prevent the damage and memory loss caused by toxic proteins in Alzheimer's disease.

2 Feb 2009

Hormone level during pregnancy may identify women at risk for postpartum depression

Women who have higher levels of a hormone produced by the placenta midway through their pregnancy appear more likely to develop postpartum depression, according to a report in the February issue of Archives of General Psychiatry.

2 Feb 2009

Heavy dope smoking can damage developing brain in teens, young adults

Adolescents and young adults who are heavy users of marijuana are more likely than non-users to have disrupted brain development, according to a new study.

2 Feb 2009

Added salt in our diets is unnecessary and contributes to health problems

Added salt in our diets is unnecessary and contributes to health problems such as hypertension and strokes, write Dr. Ken Flegel and Dr. Peter Magner and the CMAJ editorial team http://www.cmaj.ca/press/pg263.pdf.

2 Feb 2009

Gene expression signature associated with survival in advanced ovarian cancer

A new study published this week in the open-access journal PLoS Medicine identifies molecular pathways associated with outcomes in ovarian cancer.

2 Feb 2009

Genetic change prevents cell death in mouse model of Parkinson's disease

By shifting a normal protective mechanism into overdrive, a University of Wisconsin-Madison scientist has completely shielded mice from a toxic chemical that would otherwise cause Parkinson's disease.

2 Feb 2009

Fibroblasts invade at a snail's pace

A transcription factor known to drive the formation of fibroblasts during development also promotes their ability to invade and remodel surrounding tissues, report Rowe et al. in the February 9, 2009 issue of the Journal of Cell Biology.

2 Feb 2009

FDA approves KAPIDEX (dexlansoprazole) capsules for the treatment of GERD

Patients with leg pain caused by arterial disease may be able to forego treatment of the affected artery by participating in hospital-supervised exercise, according to a new study published in the February issue of Radiology.

2 Feb 2009

After knee replacement exercise is crucial

It may be uncomfortable at first, but doing exercises to strengthen your quadriceps after you've had knee replacement surgery due to osteoarthritis is critical to your recovery.

2 Feb 2009

Even with medication, asthma patients show chronic airflow changes in lungs

Using a special MRI technique, researchers have determined that the location and degree of airway narrowing in the lungs of asthma sufferers can be markedly persistent over time.

2 Feb 2009

Education may not affect how fast you will lose your memory

While a higher level of education may help lower the risk of Alzheimer's disease, new research shows that once educated people start to become forgetful, a higher level of education does not appear to protect against how fast they will lose their memory.

2 Feb 2009