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The involvement of healthy volunteers (HV) in clinical and preclinical research, especially in the gastroenterology, has grown dramatically over the past few years. However, many issues of ethical, methodological or even legal concerns have not been systematically studied.

A research article to be published on January 28, 2010 in the World Journal of Gastroenterology addresses this question. A research team lead by Professor Peter Malfertheiner, evaluated prospectively the changes in quality of life (QOL) in ten HV during a long-term endoscopy-based study.

Conventional hepatectomy is an effective way to treat hepatocellular carcinoma (HCC). However, it is invasive and stressful. Laparoscopic surgery, a kind of minimally invasive surgery, has recently gained considerable advances. The use of laparoscopy in hepatectomy, while technically demanding, reduces surgical invasiveness and stressfulness but still achieves complete resection with adequate margins.

An approach to decision making based on soft metrics could allow problems to be solved where no definitive "yes-no" answer is possible in fields as diverse as healthcare, defense, economics, engineering, public utilities and science. Writing in the International Journal of Intelligent Defence Support Systems Mihaela Quirk of Los Alamos National Laboratory explains how.

Colonoscopy is operator-dependent and substantial numbers of pre-cancerous polyps are missed during colonoscopy. Colonoscopies are often poorly documented, with only a few still photographs taken of anatomic landmarks and abnormal findings. Video recording is rarely used in colonoscopy except for teaching purposes; therefore, the potential impact of systematic video recording on the quality of colonoscopy is unknown.

The drug pazopanib (Votrient) slowed the progression of advanced renal cell carcinoma (RCC), a form of kidney cancer, in patients by 54% percent, according to a new study published in the Journal of Clinical Oncology.

Researchers at Yale School of Medicine have developed a simple urine test to rapidly predict and diagnose preeclampsia, a common, but serious hypertensive complication of pregnancy.

Dubbed the "Congo Red Dot Test" by the research team, the test accurately predicted preeclampsia in a study of 347 pregnant women, allowing health care providers to offer better preventive care to pregnant women. The research will be presented February 4 at the Annual Scientific Meeting of the Society for Maternal Fetal Medicine (SMFM) in Chicago.

CHICAGO, FEB. 4, 2010 — New evidence that genetics play a significant role in some premature births may help explain why a woman can do everything right and still give birth too soon.

Research presented today at the 30th Annual Society for Maternal-Fetal Medicine (SMFM) meeting -- The Pregnancy Meeting™ -- showed that the genes of both the mother and the fetus can make them susceptible to an inflammatory response that increases the risk of preterm labor and birth.

Researchers at the National Institutes of Health have identified DNA variants in mothers and fetuses that appear to increase the risk for preterm labor and delivery. The DNA variants were in genes involved in the regulation of inflammation and of the extracellular matrix, the mesh-like material that holds cells within tissues.

Children with obstructive sleep apnea (OSA) may one day be able to have an injection or use a throat spray instead of getting their tonsils removed to cure their snoring, according to a new study from the University of Chicago, which found that a specific gene product may be responsible for the proliferation of adenotonsillar tissue that can cause pediatric OSA.

CHICAGO, Ill. (February 4, 2010) — In a study to be presented today at the Society for Maternal-Fetal Medicine's (SMFM) annual meeting, The Pregnancy Meeting ™, in Chicago, researchers will unveil findings that show that acupuncture may be an effective treatment for depression during pregnancy.

"Depression during pregnancy is an issue of concern because it has negative effects on both the mother and the baby as well as the rest of the family," said Dr. Schnyer, one of the study's authors.

A new vaccine to prevent the deadly malaria infection has shown promise to protect the most vulnerable patients — young children — against the disease, according to an international team of researchers led by the University of Maryland School of Medicine's Center for Vaccine Development (CVD) and the Malaria Research and Training Center at the University of Bamako in Mali, West Africa. In a new study of the vaccine in young children in Mali, researchers found it stimulated strong and long-lasting immune responses.

LA JOLLA, CA – February 2, 2010 –– Scientists at The Scripps Research Institute and The Genome Institute of Singapore (GIS) led an international effort to build a map that shows in detail how the human genome is modified during embryonic development. This detailed mapping is a significant move towards the success of targeted differentiation of stem cells into specific organs, which is a crucial consideration for stem cell therapy.

The study was published in the genomics journal Genome Research on February 4, 2010.

TORONTO, On – February 3, 2010 – Recent immigrants to Ontario have a 30 per cent lower risk of stroke than long term residents, according to preliminary study results from researchers at St. Michael's Hospital and the Institute of Clinical Evaluative Sciences (ICES).

A UCSF analysis of published studies on the relationship between Alzheimer's disease and smoking indicates that smoking cigarettes is a significant risk factor for the disease. After controlling for study design, quality of the journals, time of publication, and tobacco industry affiliation of the authors, the UCSF research team also found an association between tobacco industry affiliation and the conclusions of individual studies.

Cardiologists and heart imaging specialists at 15 medical centers in eight countries, and led by researchers at Johns Hopkins, have enrolled the first dozen patients in a year-long investigation to learn whether the subtle squeezing of blood flow through the inner layers of the heart is better than traditional SPECT nuclear imaging tests and other diagnostic radiology procedures for accurately tracking the earliest signs of coronary artery clogs.