Body

EAST LANSING, Mich. — Healthy, normal-weight women pregnant with twins should gain between 37 and 54 pounds, according to research from a Michigan State University professor who helped shape the recently released national guidelines on gestational weight gain.

In a review paper published on line in Nature Reviews Neuroscience, Walter Kaye, MD, professor of psychiatry and director of the Eating Disorders Program at the University of California, San Diego, and colleagues describe dysfunction in certain neural circuits of the brain which may help explain why people develop anorexia in the first place, and behaviors such as the relentless pursuit of dieting and weight loss.

Cells rely on tiny molecular motors to deliver cargo, such as mRNA and organelles, within the cell. The critical nature of this transport system is evidenced by the fact that disruption of motors by genetic defects leads to fatal diseases in humans. Although investigators have isolated these motor to study their function in a controlled environment outside the cell, it has been difficult for researchers to follow these fascinating molecular transporters in their natural environment, the living cell.

A common variation of the gene involved in regulating serotonin and norepinephrine in the brain may be linked to problem behaviors in adults with developmental and intellectual disabilities, new research indicates.

The findings were published in the July 2009 issue of the American Journal on Intellectual and Developmental Disabilities.

Preimplantation genetic diagnosis (PGD) has helped many couples conceive healthy children and is generally considered a safe practice. However, a new long-term analysis of PGD in mice suggests that this procedure may increase risks of weight gain and memory decline in adulthood.

Chinese patients will soon have the opportunity to take part in a study of a novel therapy aimed at reversing the autoimmune disease, ankylosing spondylitis. Approximately 200 patients will be chosen to participate in a clinical trial that aims to merge the latest molecular discoveries published by the California non-profit Autoimmunity Research Foundation (ARF) with the medical expertise of physicians and researchers at West China Hospital.

(COLUMBUS, Ohio) – In the past decade the popularity of rock climbing has dramatically increased. It has been estimated that rock climbing is now enjoyed by more than 9 million people in the U.S. each year. A new study by researchers at the Center for Injury Research and Policy of the Research Institute at the Nationwide Children's Hospital found that as the popularity of the sport has escalated, so have the number of injuries. Study findings revealed a 63 percent increase in the number of patients that were treated in U.S.

Larry Wackett and Michael Sadowsky, members of the University of Minnesota's BioTechnology Institute, developed an enzyme that is used in Bioo Scientific's new MaxDiscovery™ Melamine Test kit, which simplifies the detection of melamine contamination in food. Melamine is an industrial chemical that killed six Chinese children and hospitalized 150,000 last year after it was added to milk to increase its apparent protein content. Some children may have life-long chronic kidney problems resulting from melamine exposure.

Los Angeles, London, New Delhi, Singapore and Washington DC (July 20, 2009) — Genetic testing services have recently begun to be advertised directly to the patient, and the results of the consumers' response can affect public health, as well as the future adoption of pharmacogenetic/genomic testing, according to a position paper from the American College of Clinical Pharmacology (ACCP) to be published in the August 2009 issue of the Journal of Clinical Pharmacology. The journal is published on behalf of the ACCP by SAGE.

PITTSBURGH, July 21 – Mothers' health in the days and weeks prior to becoming pregnant may determine the health of offspring much later in life, according to results of studies reported at the annual meeting of the Society for the Study of Reproduction, which takes place July 18 to 22 at the David L. Lawrence Convention Center in Pittsburgh. These studies demonstrate that maternal nutrition, protein intake and level of fat in the diet may cause epigenetic changes in the developing fetus that can have long-term health consequences.

Summaries of their findings are as follows:

KNOXVILLE -- Scientists at the University of Tennessee, Knoxville, and Lawrence Berkeley National Laboratory (LBNL) have published new findings about a cause of a condition at the root of genetic disorders such as Down Syndrome, pregnancy loss and infertility.

Called aneuploidy, the condition is an abnormal number of chromosomes, and the research team found that if a mother's egg cell has a mutation in just one copy of a gene, called Bub1, then she is less likely to have offspring that survive to birth.

Montreal, July 21, 2009 – Women who have premature menopause because of medical interventions are at an increased risk of developing lung cancer, according to a new study published in the International Journal of Cancer. The startling link was made by epidemiologists from the Université de Montréal, the Research Centre of the Centre Hospitalier de l'Université de Montréal and the INRS—Institut Armand-Frappier.

A sixteen-month study of consensus-based diagnosis of patients with disorders of consciousness has shown that 41% of cases of minimally conscious state (MCS) were misdiagnosed as vegetative state (VS), a condition associated with a much lower chance of recovery. Researchers writing in the open access journal BMC Neurology have demonstrated that standardized neurobehavioral assessment is more sensitive than diagnoses determined by clinical consensus.

African American men could be putting their health at risk by avoiding disease screening, in the belief that the results might threaten their masculinity. Because they prove their masculinity through their sexuality and sexual performance, seeking medical advice including HIV/AIDS testing goes against their notion of masculinity.

La Plata/Leipzig. Increasing numbers of children around the world are suffering from respiratory problems – coughing, wheezing and asthma attacks. Although the key external causes of these diseases were identified a long time ago (traffic and industrial air pollution), it had not previously been possible to distinguish clearly between these two factors so as to have a targeted impact on them.