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Change in gene may be underlying molecular defect in some colorectal cancers

Inactivation of a DNA repair gene may be an early step in the development of sporadic colorectal tumors, and detection of the molecular basis for this inactivation may ultimately be useful in risk assessment for colorectal cancer, according to a new study in the September 21 issue of the Journal of the National Cancer Institute.

20 Sep 2005

Green tea may protect the brain against Alzheimer's disease

Researchers at the University of South Florida (USF) have found that green tea may offer another potential health benefit - protecting the brain against the ravages of Alzheimer's disease.

20 Sep 2005

Suppression of FOXO1a gene might kill resistant alveolar rhabdomyosarcoma (ARMS) tumors

FOXO1a caused death of tumor cells in laboratory study by triggering expression of caspase-3, which blocks cell division and causes cells to undergo apoptosis, according to St. Jude.

20 Sep 2005

Periodontal disease develops much earlier than dentists and other health professionals thought

Periodontal disease -- a progressive, eventually painful and disruptive condition in which bacteria attack gums and the hidden roots of teeth -- develops much earlier than dentists and other health professionals thought, a major new study concludes.

20 Sep 2005

O-GlcNAc sugar is a critical regulator of cells' natural life cycle

The discovery reveals that, when disturbed, this process could contribute to cancer or other diseases by failing to properly control the steps and timing of cell division, the researchers say. The findings are described in the Sept. 23 issue of the Journal of Biological Chemistry, available online now.

20 Sep 2005

PUMA protein offers critical insights for developing new anti-cancer drugs

The discovery of how the activities of the protein p53 initiate signals that trigger cell suicide offers critical insights for developing new anti-cancer drugs, according to investigators from St. Jude Children's Research Hospital.

20 Sep 2005

Snail, a molecule normally important in embryonic development, can promote breast cancer recurrence

Using a recently developed mouse model of breast cancer, a team from the University of Pennsylvania School of Medicine has shown that Snail, a molecule normally important in embryonic development, can promote breast cancer recurrence.

20 Sep 2005

Salicylate an active metabolite of aspirin - weakens lipid membranes

It's well known that high doses of aspirin can cause ulcers and temporary deafness, but the biochemical mechanism responsible for these phenomena has never been deciphered.

19 Sep 2005

PSA remains the best measure of the likelihood of prostate cancer recurrence after surgery

Despite recent claims by some urologists that measuring the blood protein prostate-specific antigen (PSA) may not be effective in predicting risk of prostate cancer, a Johns Hopkins study of more than 2,000 men confirms that PSA remains the best measure of the likelihood of cancer recurrence after surgery.

19 Sep 2005

Prions rapidly 'remodel' good protein into bad

Two Brown Medical School biologists have figured out the fate of healthy protein when it comes in contact with the infectious prion form in yeast: The protein converts to the prion form, rendering it infectious. In an instant, good protein goes bad.

19 Sep 2005

Discovery that protein CD38 interrupts an interaction between the AIDS virus and its point of entry into cells

Cornell University researchers have discovered the 3-D crystal structure of a protein, human CD38, which may lead to important discoveries about how cells release calcium - a mineral used in almost every cellular process.

19 Sep 2005

Researchers detail molecular images of a piece of the spike-shaped protein that the SARS virus uses initiate the first stages of infection

Researchers have determined the first detailed molecular images of a piece of the spike-shaped protein that the SARS virus uses to grab host cells and initiate the first stages of infection.

19 Sep 2005

Human fat cells produce a protein that is linked to both inflammation and an increased risk of heart disease and stroke

Researchers at The University of Texas M. D. Anderson Cancer Center and The University of Texas Health Science Center at Houston have found that human fat cells produce a protein that is linked to both inflammation and an increased risk of heart disease and stroke.

19 Sep 2005

Molecular pathway in mice that makes prostate cells vulnerable to cancer-causing oxygen damage

Scientists from Maryland and New Jersey have identified a molecular pathway in mice that makes prostate cells vulnerable to cancer-causing oxygen damage.

19 Sep 2005

Study suggests chronic infections may create autoimmune response

New research finds the human immune system has foregone evolutionary changes that would allow it to produce better antibodies in less time because the improved antibodies would be far more likely to attack the body's own tissues.

19 Sep 2005

Researchers selectively knock out memory associations connected with receiving cocaine

Addicts crave drugs and suffer relapse not just because of the alluring high of drugs, but also because they are compelled by the powerful, haunting memory associations with the environment surrounding their drug taking. Thus, treatments that could eliminate those memory associations could prove effective in treating addiction, researchers believe.

19 Sep 2005

New and unusual class of genes plays an important role in the development of chronic lymphocytic leukemia

The study found that the loss of two genes for producing small molecules known as microRNAs enables damaged cells to survive, rather than normally self-destructing before they become cancerous.

12 Sep 2005

Microtubules critical to development of mental disorders

Neuroscientists at the University at Buffalo have shown in two recently published papers that destabilization of structures called microtubules, intracellular highways that transport receptors to their working sites in the brain, likely underlie many mental disorders and could be promising targets for intervention.

12 Sep 2005

Cellular mechanism discovery could lead to new treatments for rheumatoid arthritis, multiple sclerosis and Crohn's disease

A major finding by researchers at the La Jolla Institute for Allergy & Immunology (LIAI) has identified a previously unknown cellular mechanism that acts as an off switch for immune system function.

12 Sep 2005

Translation elongation factor eEF1A2 is is a potential oncogene that is overexpressed in two-thirds of breast tumors

The tissue-specific elongation factor eEF1A2 might be an oncoprotein involved in breast cancer.

12 Sep 2005

G Protein News and Research

Change in gene may be underlying molecular defect in some colorectal cancers

Green tea may protect the brain against Alzheimer's disease

Suppression of FOXO1a gene might kill resistant alveolar rhabdomyosarcoma (ARMS) tumors

Periodontal disease develops much earlier than dentists and other health professionals thought

O-GlcNAc sugar is a critical regulator of cells' natural life cycle

PUMA protein offers critical insights for developing new anti-cancer drugs

Snail, a molecule normally important in embryonic development, can promote breast cancer recurrence

Salicylate an active metabolite of aspirin - weakens lipid membranes

PSA remains the best measure of the likelihood of prostate cancer recurrence after surgery

Prions rapidly 'remodel' good protein into bad

Discovery that protein CD38 interrupts an interaction between the AIDS virus and its point of entry into cells

Researchers detail molecular images of a piece of the spike-shaped protein that the SARS virus uses initiate the first stages of infection

Human fat cells produce a protein that is linked to both inflammation and an increased risk of heart disease and stroke

Molecular pathway in mice that makes prostate cells vulnerable to cancer-causing oxygen damage

Study suggests chronic infections may create autoimmune response

Researchers selectively knock out memory associations connected with receiving cocaine

New and unusual class of genes plays an important role in the development of chronic lymphocytic leukemia

Microtubules critical to development of mental disorders

Cellular mechanism discovery could lead to new treatments for rheumatoid arthritis, multiple sclerosis and Crohn's disease

Translation elongation factor eEF1A2 is is a potential oncogene that is overexpressed in two-thirds of breast tumors

How ELRIG Is Helping Mid-Career Scientists Navigate Leadership, Career Change and Redundancy

The role of UV-Vis in biopharma QC

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