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HOUSTON -- A comprehensive drug development strategy that starts with extensive screening of potential targeting agents and then narrows down to a small-molecule prototype has yielded two potential drugs that block cancer-promoting pathways in novel ways, a team led by scientists at The University of Texas M. D. Anderson Cancer Center reports in two papers published back-to-back online at the Proceedings of the National Academies of Science.

CORAL GABLES, FL (February 25, 2010)----A new study by researchers from the University of Miami shows that maternal sensitivity may influence language development among children who go on to develop autism. Although parenting styles are not considered as a cause for autism, this report examines how early parenting can promote resiliency in this population. The study entitled, "A Pilot Study of Maternal Sensitivity in the Context of Emergent Autism," is published online this month and will appear in an upcoming issue of the Journal of Autism and Developmental Disorders.

While biomarkers are needed to complement ultrasound in the early detection of hepatocellular carcinoma (HCC; liver cancer), neither des-gamma-carboxy prothrombin (DCP) nor the most widely used biomarker, alpha fetoprotein (AFP), is optimal, according to a new study in Gastroenterology, the official journal of the American Gastroenterological Association (AGA) Institute.

Initiating antiretroviral therapy (ART) during tuberculosis therapy significantly reduced mortality rates by 56 percent in a randomized clinical trial of 642 patients co-infected with HIV and tuberculosis. The study, which provides further impetus for the integration of TB and HIV services, lays to rest the controversy on whether co-infected patients should initiate ART during or after TB treatment. Findings are published in the February 25th issue of The New England Journal of Medicine.

The introduction of prostate-specific antigen (PSA) testing as a screening tool for early detection of prostate cancer (PCa) in the beginning of the 1990s drastically increased the detection of PCa. The risk of suicide is increased among cancer patients including men with PCa. To assess the risk of suicide among men diagnosed with PCa subsequent to PSA testing, a nation-wide study was carried out in Sweden. The results are published in the March issue of European Urology, the scientific journal of the European Association of Urology (EAU).

The team observed viruses as they evolved over hundreds of generations to infect bacteria. They found that when the bacteria could evolve defences, the viruses evolved at a quicker rate and generated greater diversity, compared to situations where the bacteria were unable to adapt to the viral infection.

A study by researchers in Australia and the United Kingdom suggests that autoantibodies to fat binding proteins significantly increase in systemic lupus erythematosus (SLE) patients with active disease. This increase in anti-apolipoprotein (anti-Apo A-I), anti-high-density lipoprotein (anti-HDL), and anti-C-reactive protein (anti-CRP) may contribute to the development of atherosclerosis in SLE patients, placing them at risk for cardiovascular disease (CVD).

Researchers from the Toronto Western Research Institute noted a higher prevalence of arthritis and arthritis-attributable activity limitations (AAL) in the U.S. versus the Canadian population. The authors attribute the higher prevalence of arthritis and AAL to a greater level of obesity and physical inactivity in Americans, particularly women. Full findings of this study are published in the March issue of Arthritis Care & Research, a journal of the American College of Rheumatology.

A new study found that fluoxetine (Prozac®) and citalopram (Celexa®) treatment significantly inhibited disease progression of collagen-induced arthritis (CIA) in mice. Research led by Sandra Sacre, Ph.D. from the Brighton and Sussex Medical School (BSMS) in the UK studied the anti-arthritic potential of these drugs, known as selective serotonin reuptake inhibitors (SSRIs), most commonly used to treat depression. Both SSRIs exhibited anti-inflammatory effects and may provide drug development opportunities for arthritic conditions such as rheumatoid arthritis (RA).

HIV/AIDS remains one of the world's most significant public health challenges, particularly in developing countries. The Human Immunodeficiency Virus (HIV-1), the variant responsible for the pandemic, has the ability to infect different cell types such as T cells, macrophages and dendritic cells (DC). These latter cells are crucial in the defense against infectious agents and play a major role in viral pathogenesis.

Wider adoption of the practice of recycling medical equipment — including laparoscopic ports and durable cutting tools typically tossed out after a single use — could save hospitals hundreds of millions of dollars annually and curb trash at medical centers, the second-largest waste producers in the United States after the food industry.

The recommendation, made in an analysis by Johns Hopkins researchers in the March issue of the journal Academic Medicine, noted that with proper sterilization, recalibration and testing, reuse of equipment is safe.

Single or unhappily married men may have an elevated risk of fatal stroke in the coming decades, according to a large study presented at the American Stroke Association's International Stroke Conference 2010.

The findings are based on earlier work in which researchers examined 10,059 civil servants and municipal workers (average age 49) who participated in the Israeli Ischemic Heart Disease Study in 1963. Using the national death registry and other records, researchers tracked the fate of the men through 1997, the last year for which underlying causes of death had been coded.

In ongoing work to identify how genes interact with social environments to impact human health, UCLA researchers have discovered what they describe as a biochemical link between misery and death. In addition, they found a specific genetic variation in some individuals that seems to disconnect that link, rendering them more biologically resilient in the face of adversity.

Cancer researchers studying the immune system have identified a previously unrecognized set of targets and biomarkers to battle solid tumors.

In a finding that overturns conventional wisdom, scientists are reporting the first discovery of the female sex hormone progesterone in a plant. Until now, scientists thought that only animals could make progesterone. A steroid hormone, secreted by the ovaries, progesterone prepares the uterus for pregnancy and maintains pregnancy. A synthetic version, progestin, is used in birth control pills and other medications. The discovery is reported in ACS' Journal of Natural Products, a monthly publication.