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Researchers have uncovered evidence of sexual reproduction in a single-celled organism long thought to reproduce asexually

The finding by John M. Logsdon, Jr., assistant professor in the UI College of Liberal Arts and Sciences Department of Biological Sciences and the Roy J. Carver Center for Comparative Genomics, and colleagues from the UI and Roanoke College (Virginia), provides the first clear evidence that meiosis arose very early in eukaryotic evolution, bringing science one step closer to understanding the mystery of sexual evolution.

26 Jan 2005

Genetic defect leads to electrical instability and mechanical pump failure

In genetic mapping of a large family with several members affected by a type of heart failure called dilated cardiomyopathy (DCM), the Mayo Clinic team found a defect in a gene on chromosome 3 called SCN5A.

26 Jan 2005

Research may provide the basis for development of a new, extensive immunotherapy for human tumors

Scientists have made significant progress towards understanding how the immune system can be more specifically and efficiently targeted against cancer cells. The research, published in the January issue of Immunity, may provide the basis for development of a new, extensive immunotherapy for human tumors.

26 Jan 2005

Brain regions decide where we look

Scientists have found the brain regions that decide where we look, and where to direct our eyes when we’re faced with a difficult choice, such as looking someone straight in the eye or looking away.

25 Jan 2005

High cholesterol, hypertension, diabetes and smoking may increase risk of dementia

High cholesterol, hypertension, diabetes and smoking have long been considered -- and aggressively treated -- as risk factors for cardiovascular disease.

25 Jan 2005

Aastrom Biosciences responds to article regarding contaminated stem cell lines

Aastrom Biosciences responded today to the publication in the Sunday online edition of Nature Medicine of findings by California researchers that indicate that certain lines of human embryonic stem cells have been contaminated through the use of mice feeder cells.

25 Jan 2005

Basic biochemical composition of heart valves in patients with congestive heart failure are markedly different than those with healthy hearts

Surprising new findings in the Journal of the American College of Cardiology show that the basic biochemical composition of heart valves in patients with congestive heart failure are markedly different than those with healthy hearts, a finding that may explain the mixed success of surgery to repair valve dysfunction in these patients.

25 Jan 2005

Plant protein mimics hormone that mitigates diabetes and obesity

A common protein that protects plants from fungal infection mimics the activity of a hormone in mammals that is linked to weight loss and is believed to play a role in mitigating heart disease, obesity and diabetes, according to a team of researchers at Purdue University and several collaborating institutions.

25 Jan 2005

Lack of the enzyme acetyl CoA carboxylase 2 turns fat cells into fat burners

Lack of the enzyme, acetyl CoA carboxylase 2 or ACC2, appears to turn the adipose or fat cells of mice into fat burners, explaining in part why the animals can eat more and weigh less than their normal counterparts, said Baylor College of Medicine researchers.

25 Jan 2005

School influenza vaccinations best strategy for slowing flu transmission

The best strategy for minimizing future influenza morbidity and mortality would be to concentrate vaccinations in school children and high-risk groups, according to a new research commentary by scientists at Emory University.

25 Jan 2005

Exercise reduces depression

Jumping on that treadmill or bike is not only good for one's health, but also can help significantly reduce depression, researchers at UT Southwestern Medical Center have found.

25 Jan 2005

Eating tuna or other broiled or baked fish lowers risk of stroke in the elderly

The consumption of tuna or other broiled or baked fish is associated with a lower risk of stroke in the elderly, while eating fried fish or fish sandwiches is linked to a higher risk, according to an article in the January 24 issue of Archives of Internal Medicine.

24 Jan 2005

Available lines of human embryonic stem cells have been contaminated

Currently available lines of human embryonic stem cells have been contaminated with a non-human molecule that compromises their potential therapeutic use in human subjects, according to research by investigators at the University of California, San Diego (UCSD) School of Medicine and the Salk Institute in La Jolla, California.

24 Jan 2005

Activate dendritic cells turn on biological clock

A molecule specially modified by researchers at Baylor College of Medicine can reset the biological clock for cancer vaccines, potentially making them more potent.

24 Jan 2005

Priming embryonic stem cells to fulfill their promise

Bioengineering researchers at the University of California, San Diego have invented a process to help turn embryonic stem cells into the types of specialized cells being sought as possible treatments for dozens of human diseases and health conditions.

24 Jan 2005

High blood pressure risk in African-Americans linked to genetics

National health records have shown that African-Americans are more prone to high blood pressure than Caucasians, but pinning down the roots of that difference has proven elusive. Now, researchers at the Stanford University School of Medicine have narrowed down the search for genes that contribute to this difference in disease risk.

24 Jan 2005

Over-eating at an early age may stay well into adulthood

Melbourne researchers have found that over-eating at a very young age can have a long-lasting effect on the body and in particular seems to enhance the production of hormones made in fat and involved in metabolism.

24 Jan 2005

Early seizures after surgery for epilepsy predict more seizures

Current understanding of seizures in the weeks just after epilepsy surgery is that they are likely to be temporary, probably due to swelling or minor trauma suffered by the brain during the operation.

24 Jan 2005

Clinical trial planned for stem cell treatment for stress urinary incontinence

ITL Laboratories, L.L.C. ("ITL") is planning a clinical trial to determine the effectiveness of a stem cell treatment for stress urinary incontinence. A recent clinical trial by Austrian researchers has demonstrated the potential usefulness of expanded muscle stem cell injections in the treatment of urinary incontinence.

24 Jan 2005

RU-486 plus prostaglandins remains the most effective nonsurgical abortion method

The most common medical approach to terminating early pregnancy — the drug RU-486 plus prostaglandins — remains the most effective nonsurgical abortion method, according to a new research review.

24 Jan 2005