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Scientists have taken a significant leap forward in understanding the complex ways that molecules work together in cells.

Although scientists already know a lot about single molecules, they know very little about how they are assembled into larger molecular complexes or "machines" and how these machines work together to create a complete, functioning cell. The problem is like trying to assemble a puzzle with billions of pieces– with only the shapes of some pieces to go on.

25 Mar 2004

Brain signals could act as remote controls

In their first human studies of the feasibility of using brain signals to operate external devices, researchers at Duke University Medical Center report that arrays of electrodes can provide useable signals for controlling such devices. The research team is now working to develop prototype devices that may enable paralyzed people to operate "neuroprosthetic" and other external devices using only their brain signals.

25 Mar 2004

Alcohol boosts the pleasurable effects of nicotine

In tests on human volunteers, Duke University Medical Center researchers have found that even small amounts of alcohol boost the pleasurable effects of nicotine, inducing people to smoke more when drinking alcoholic beverages. The findings provide a physiological explanation for the common observation that people smoke more in bars. The findings also explain statistics showing that alcoholics tend to smoke more than non-alcoholics, and that smokers are more likely to be alcoholics.

24 Mar 2004

Bone marrow stem cells do not help regenerate heart muscle tissue, UW study finds, contradicting earlier study

Researchers at the University of Washington School of Medicine have found that bone marrow stem cells do not convert into heart muscle cells in mice. These results contradict a study conducted elsewhere that had prompted human clinical trials for such stem cell therapy in the treatment of heart attack.

23 Mar 2004

New Australian Research into Autism and Asperger's Disorder

Researchers at Sydney University are recruiting volunteers for an investigation that will help improve our understanding of young people with High Functioning Autism and Asperger's Disorder.

23 Mar 2004

Oregon Stem Cell Center Hunt for Human Disease Therapies

Oregon Health & Science University's fast-growing stem cell research program, which already has made significant strides in the hunt for human disease therapies, now has a place to call home.

23 Mar 2004

Stem cell research that could help diabetics

University of Florida adult stem cell experts have restored normal blood sugar levels in diabetic mice for three months by chemically coaxing bone marrow cells to produce insulin, a hormone normally made in the pancreas.

22 Mar 2004

Research suggests protein released from lungs could initiate labour

A protein released from the lungs of a developing mouse fetus initiates a cascade of chemical events leading to the mother's initiation of labor, researchers at UT Southwestern Medical Center at Dallas have found.

22 Mar 2004

Risk of kidney stones increases higher if overweight

Researchers at UT Southwestern Medical Center at Dallas have found that the more overweight a person is the more at risk he or she is for forming uric acid kidney stones.

22 Mar 2004

Researchers discover new form of the Rett syndrome protein

Adrian Bird and Skirmantas Kriaucionis of the University of Edinburgh have discovered a novel form of the protein MeCP2. This alternate form, coined MeCP2 alpha, differs from the original only in the first 19 amino acids. Interestingly, Adrian Bird, Director of the Welcome Trust Centre for Cell Biology at Edinburgh University, found that MeCP2 alpha, is ten times more prevalent not only in the brain but also in other tissues. These findings are currently reported online in Nucleic Acids Research. Similar findings were reported yesterday in Nature Genetics online by Berge Minassian, a neurologist and scientist at Toronto's Hospital for Sick Children.

22 Mar 2004

Chemotherapy offers new hope for pancreatic cancer patients

Chemotherapy after surgery more than doubles survival rates for pancreatic cancer according to new research published today (18 March 2004) in the New England Journal of Medicine. Scientists from the University of Birmingham and the University of Liverpool have carried out a Europe wide study of more than 280 patients over 10 years.

22 Mar 2004

Breast feeding increases choline which means more brain cells

Five years ago, University of North Carolina at Chapel Hill researchers first reported finding that the nutrient choline played a critical role in memory and brain function by positively affecting the brain’s physical development. Differences in development influenced action, the scientists and their colleagues found. In animal experiments conducted at Duke University, both young and old rats performed significantly better on memory tasks if they received enough choline before birth compared with same-age rats whose mothers were fed choline-deficient diets. The latter showed deficits in the hippocampus and septums of their brains.

22 Mar 2004

New research may help prevent anthrax, bubonic plague and typhoid fever

The mechanism used by the bacteria that cause anthrax, bubonic plague and typhoid fever to avoid detection and destruction by the body’s normal immune response, leading to life-threatening bacterial infections, has been identified by researchers at the University of California, San Diego (UCSD) School of Medicine.

22 Mar 2004

Research provides better understanding of lipodystrophies disorders

More than a decade of work conducted by UT Southwestern Medical Center at Dallas researchers has led to a better understanding of the underlying causes of lipodystrophies - disorders characterized by the selective loss of fat tissues, resulting in metabolic complications, such as severe diabetes and high blood cholesterol levels.

22 Mar 2004

Asian poison ivy like plant may stop prostate cancer

The croton plant, long known to oriental herbalists and homeopaths as a purgative, has an oil in its seeds that shows promise for the treatment of prostate cancer – the second leading cause of cancer death in men in the United States. The active ingredient in the oil is 12-O-tetradecanoylphorbol-13-acetate, a compound generally known as TPA.

22 Mar 2004

Research suggest tea total only way to go when pregnant

The cardinal rule of a safe pregnancy is to avoid heavy drinking. However, new research indicates that even light to moderate drinking should be avoided as it may interfere with learning and memory in children as late as adolescence.

22 Mar 2004

Research suggests the orlistat drug could be used to fight cancer and obesity

The Burnham Institute’s Jeffrey Smith, Ph.D., has discovered that orlistat, commonly prescribed as an anti-obesity drug, has a positive side-effect: it inhibits cancer growth. Dr. Smith made this discovery using an activity-based proteomics screening technique developed in his laboratory that makes it possible to identify active targets and simultaneously screen for their inhibitors.

22 Mar 2004

Breast-feeding may lower children's blood pressure later in life

The researchers found that for every 3 months of breast-feeding, the children had a 0.2-mm Hg reduction in systolic blood pressure.

22 Mar 2004

Lupus Discovery May Lead To Improved Drugs

In an important development in the treatment of lupus as well as certain cancers, scientists at the Feinberg School of Medicine at Northwestern University have discovered how autoimmune lupus T cells stave off programmed cell death and drive production of autoantibodies directed against the body’s own DNA.

22 Mar 2004

Government, industry, and academia focus on obesity

Amid shifting scientific data on nutrition and obesity, experts from government, industry, and academia converged on Harvard Medical School last week to discuss obesity's causes and how to craft a coherent public nutritional message.

22 Mar 2004