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Scientists study yeast to understand human pathologies affecting male fertility

Men and yeast have something in common: they use the same molecular process to ensure the integrity of their gene pool during reproduction. This is a recent finding by researchers from CNRS, Inserm and the Université Joseph Fourier in Grenoble. The scientists are therefore set on studying yeast in order to shed light on the numerous cases of male infertility related to the malfunction of this process during spermatogenesis.

19 Aug 2010

Study discovers multiple effects of SSRIs on cells

A new discovery about selective serotonin reuptake inhibitors (SSRIs) suggests that these drugs, which are used to treat mental health disorders like depression and anxiety, have multiple effects on our cells. In a research report published in the August 2010 issue of GENETICS, researchers used yeast cells to identify secondary drug targets or pathways affected by SSRIs. Such secondary pathways could help explain why different people taking the same drug may experience different effects, and could also lead to new types of drugs altogether.

17 Aug 2010

Zebrafish-yeast approach for studying copper deficiency, complex multifactorial diseases

Copper deficiency diseases can be devastating. Symptoms can range from crippling neurological degeneration in Menkes disease ,a classic copper deficiency disease to brittle bones, anaemia and defective skin pigmentation in gastric bypass patients. Unfortunately, very little is known about how the body uses this essential nutrient. Knowing that melanocytes (the cells that give rise to hair, skin and eye pigmentation) are dramatically affected by the effects of copper deficiency, Elizabeth Patton from the University of Edinburgh, UK, and other colleagues from UK and US based labs decided to find out how melanocytes metabolise copper.

17 Aug 2010

Researchers find transposons determine differences in physical traits, disease risks

Building on a tool that they developed in yeast four years ago, researchers at the Johns Hopkins University School of Medicine scanned the human genome and discovered what they believe is the reason people have such a variety of physical traits and disease risks.

12 Aug 2010

Nature News examines how scientists, farmers are working to meet the growing demand for artemisinin

"From bust to boom to bust again: artemisinin, the key ingredient of front-line antimalarial drugs, is entering the third chapter of its turbulent history," Nature News writes in an article that examines the challenges scientists and farmers are facing as they attempt to keep up with the growing demand for the compound just as a "$343-million initiative starts to battle malaria through hugely subsidized medicines."

5 Aug 2010

Resveratrol suppresses inflammation in humans: Research

Resveratrol, a popular plant extract shown to prolong life in yeast and lower animals due to its anti-inflammatory and antioxidant properties, appears also to suppress inflammation in humans, based on results from the first prospective human trial of the extract conducted by University at Buffalo endocrinologists.

31 Jul 2010

Resveratrol suppresses inflammation and free radicals: Study

30 Jul 2010

AdvanDx's 90 minutes protocol for Yeast Traffic Light PNA FISH test receives FDA 510(k) clearance

AdvanDx today announced that it has received FDA 510(k) clearance for a fast, 90 minutes protocol for its Yeast Traffic Light® PNA FISH® test. The faster protocol reduces the PNA FISH turn-around time from the original 2.5 hours to 90 minutes by reducing PNA probe hybridization from 90 minutes to 30 minutes.

30 Jul 2010

Drugs that activate SIRT1 hold potential to combat Alzheimer's: Study

MIT biologists report that they have discovered the first link between the amyloid plaques that form in the brains of Alzheimer's patients and a gene previously implicated in the aging process, SIRT1.

23 Jul 2010

AMPK may regulate epigenetic mechanism: Research

AMP-activated protein kinase, or AMPK, is a master regulator protein of metabolism that is conserved from yeast to humans. When a cell is low on fuel, AMPK shuts down processes that use energy and turns on processes that produce energy.Biologists have been studying how AMPK works for several decades and know that once it is activated, AMPK turns on a large number of genes by passing the "make more energy" message through numerous signaling cascades in the cell. What was not known, until now, was that AMPK also works via an epigenetic mechanism to slow down or stop cell growth.

17 Jul 2010

Sirtuin1 protein promotes memory, brain flexibility: MIT researchers

The same molecular mechanism that increases life span through calorie restriction may help boost memory and brainpower, researchers at MIT's Picower Institute for Learning and Memory report in the July 11 issue of Nature.

12 Jul 2010

IRIC scientists identify vitamin B3 as potential antifungal treatment

A team of scientists from the Institute for Research in Immunology and Cancer (IRIC) of the University of Montreal have identified vitamin B3 as a potential antifungal treatment. Led by IRIC Principal Investigators Martine Raymond, Alain Verreault and Pierre Thibault, in collaboration with Alaka Mullick, from the Biotechnology Research Institute of the National Research Council Canada, the study is the subject of a recent article in Nature Medicine.

9 Jul 2010

Breathing system filters used in anaesthesia allow passage of bacterial, yeast infections

Doctors have highlighted potential problems with the breathing system filters used in anaesthesia, including intensive care units, after demonstrating that they don't provide protection from harmful bacteria and yeast when they become wet.

6 Jul 2010

Groton Biosystems releases in-situ filter sampling probe for automated, manual extraction of cell-free samples

Groton Biosystems, the leader in automated online bioprocess sampling, has announced the release of a sterilizable, disposable in-situ filter sampling probe for automated and manual extraction of cell-free samples. The rugged design of this product delivers extended service life in typical bioreactor applications and features a nonbinding inert surface which resists clogging throughout the extended process runtimes most often associated with cell culture and perfusion applications.

30 Jun 2010

Researchers develop experimental approaches, analysis tools to understand phenotypic expression

The Human Genome Project, along with numerous parallel efforts to solve the DNA sequences of hundreds of animal, plant, fungal, and microbe genomes in the last few decades, has produced enormous amounts of genetic data with which researchers are struggling to keep pace.

23 Jun 2010

Study: Complex make-up of cells could lead to new types of medicines

A surprising discovery about the complex make-up of our cells could lead to the development of new types of medicines, a study suggests. Scientists studying interactions between cell proteins - which enable the cells in our bodies to function - have shown that proteins communicate not by a series of simple one-to-one communications, but by a complex network of chemical messages.

22 Jun 2010

Excess neuronal protein plays role in the evolution of neurodegenerative diseases: Research

In diverse neurodegenerative diseases ranging from Parkinson's to Alzheimer's, researchers have long noted accumulations of a little-understood neuronal protein called α-synuclein. Pathological and genetic evidence strongly suggested that excessive α-synuclein played a role in the evolution of these diseases, but it was unclear how too much α-synuclein culminated in synaptic damage and neurodegeneration.

17 Jun 2010

New bacterial strain could help in long-term cleanup of oil spills

Researchers have discovered a new strain of bacteria that can produce non-toxic, comparatively inexpensive "rhamnolipids," and effectively help degrade polycyclic aromatic hydrocarbons, or PAHs - environmental pollutants that are one of the most harmful aspects of oil spills.

14 Jun 2010

Anoxia-induced suspended animation helps survive hypothermia

How is it that some people who apparently freeze to death, with no heart rate or respiration for extended periods, can be brought back to life with no long-term negative health consequences? New findings from the laboratory of cell biologist Mark B. Roth, Ph.D., of Fred Hutchinson Cancer Research Center, may help explain the mechanics behind this widely documented phenomenon.

11 Jun 2010

Delicate balance of microbes in vagina can vary between healthy women: New study

The delicate balance of microbes in the vagina can vary greatly between healthy women, according to a new study led by the University of Maryland School of Medicine's Institute for Genome Sciences. Researchers hope further study will lead to personalized reproductive medicine for women, allowing doctors to tailor each woman's treatment and health maintenance strategies to her individual microbial make-up.

4 Jun 2010