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New Clues to Sex Anomalies in How Y Chromosomes Are Copied

Article looks at another David Page contribution to the science of genetics.
A weakness in the system that allows the male Y chromosome to protect and repair itself can explain an array of genetic sexual disorders.:
The palindromes were discovered in 2003 when the Y chromosome's sequence of bases, represented by the familiar letters G, C, T and A, was first worked out by David Page of the Whitehead Institute and colleagues at the DNA sequencing center at WUSTL medical school.


References:
  1. Sept. 15, 2009 — New Clues to Sex Anomalies in How Y Chromosomes Are Copied in the The New York Times
More Alzheimer genetic risk factors found

An international team of scientists has reported finding two more genetic risk factors of Alzheimer's disease. Includes comments by co-author and WUSTL professor of genetics in psychiatry Alison Goate.


References:
  1. Sept. 8, 2009 — More Alzheimer genetic risk factors found in the United Press International
and 3 others.
Scientists Identify 'Itchy' Neurons In Mice

Scientists know surprisingly little about the common sensation of itching. But in a recent study of mice, researchers identified specific nerve cells that pass along an itch signal to the brain. And these cells appear to be independent of the pathway for pain. WUSTL anesthesiology professor and co-author Zhou-Feng Chen comments on the study that was published in Science Express.


References:
  1. Aug. 6, 2009 — Scientists Identify 'Itchy' Neurons In Mice in the NPR.org
Genome of Leukemia Patient Reveals Common Mutations

Decoding the genome of a man with acute myeloid leukemia revealed genetic mutations that may be common among other cancer patients. The findings could help scientists understand the genetic basis of cancer. Includes comments by WUSTL researchers Richard Wilson, co-author and director of the Genome Center, and Timothy Ley, study senior author and medicine professor.


References:
  1. Aug. 5, 2009 — Genome of Leukemia Patient Reveals Common Mutations in the U.S. News & World Report online
and 13 others.
David Holtzman: Attacking Alzheimer's With a New Test for Amyloid Beta

WUSTL neuroscientist David Holtzman and colleagues have devised a test that shows whether an experimental medication has a chance of working in Alzheimer's patients.


References:
  1. June 30, 2009 — David Holtzman: Attacking Alzheimer's With a New Test for Amyloid Beta in the U.S. News & World Report online
Elaine Mardis and Richard Wilson: Taking Cancer's Genetic Measure

WUSTL biochemists Elaine Mardis and Richard Wilson helped decode the human genome and are now working to find genetic mutations associated with acute myeloid leukemia.


References:
  1. June 30, 2009 — Elaine Mardis and Richard Wilson: Taking Cancer's Genetic Measure in the U.S. News & World Report online
Study: 'Depression Gene' Doesn't Predict the Blues

Are some people hardwired to get the blues? Scientists have long believed that a tendency toward melancholy runs in families. A new study published on June 16 in JAMA now threatens to send researchers back to the drawing board. The meta-analysis of 14 prior studies concludes that the so-called depression gene may not be associated with an elevated risk for depression, as many researchers had believed. WUSTL psychiatric geneticist Alexandre Todorov, whose 2007 peer-reviewed study was included in the JAMA piece, comments.


References:
  1. June 17, 2009 — Study: 'Depression Gene' Doesn't Predict the Blues in the Time.com
Gene Mutation May Up Risks of Endometrial Cancer

WUSTL gynecologic oncologist Israel Zighelboim comments on a genetic marker for aggressive endometrial cancer that has been identified by U.S. researchers.

A genetic marker for aggressive endometrial cancer has been identified by U.S. researchers, who said their finding could lead to more targeted and risk-appropriate treatments. WUSTL gynecologic oncologist Israel Zighelboim comments on the study that appears online in the Journal of Clinical Oncology.


References:
  1. May 27, 2009 — Gene Mutation May Up Risks of Endometrial Cancer in the U.S. News & World Report online
and 8 others.
Combo Screening Doesn't Spot Early Ovarian Cancer

A screening regimen that combines ultrasound and a blood test to detect a marker for ovarian cancer, fails to discover the cancer in its early stages and often results in unnecessary surgery, a new study shows. WUSTL ob gyn professor David Mutch, who wrote an accompanying journal editorial, comments.


References:
  1. March 20, 2009 — Combo Screening Doesn't Spot Early Ovarian Cancer in the U.S. News & World Report
and 3 others.
Control your DNA destiny

Some genetic traits are easier to defy than others. Others, such as cancer or diabetes, are not so simple to escape. Advice on how you can reduce your risk with proven tips for protecting your health from head to toe. WUSTL surgery professor Ming You, director of the Chemoprevention Program at WUSTL's Siteman Cancer Center, comments on the role heredity plays in asthma, allergies and lung cancer.


References:
  1. March 12, 2009 — Control your DNA destiny in the MSNBC.com
Push is on to tailor cancer care to tumor's genes

WUSTL oncologist Matthew Ellis comments on a rush of new research that points to tailored chemotherapy for cancer patients.

The days of one-size-fits-all cancer treatment are numbered: A rush of new research is pointing the way to tailor chemotherapy and other care to what's written in your tumor's genes. WUSTL oncologist Matthew Ellis, co-inventor of a different breast cancer genetic approach, comments.


References:
  1. Feb. 16, 2009 — Push is on to tailor cancer care to tumor's genes in the Associated Press
and 122 others.
In a Worm, a Mutation to Survive in Low Oxygen

WUSTL researchers led by Michael Crowder and Lori Anderson have studied a worm that can survive after nearly a day in a low oxygen environment.

WUSTL researchers led by Michael Crowder and Lori Anderson have studied a worm that can survive after nearly a day in a low oxygen environment.


References:
  1. Feb. 3, 2009 — In a Worm, a Mutation to Survive in Low Oxygen in the The New York Times
Lowly worm offers new clues on stroke, heart drugs

Worms that can survive with almost no oxygen are teaching scientists how to rescue oxygen-starved cells in humans who suffer a heart attack or stroke, said WUSTL medical researcher Michael Crowder, whose study appears in Science.


References:
  1. Jan. 29, 2009 — Lowly worm offers new clues on stroke, heart drugs in the Reuters
and 3 others.
Antidepressant Eases Anxiety in Older Adults

WUSTL associate professor of psychiatry Dr. Eric J. Lenze comments on a study that found antidepressants to improve anxiety symptoms in older adults.

In the largest study of SSRIs in older people with anxiety disorders, a team of psychiatric researchers found the drug escitalopram improved anxiety symptoms and quality of life. The study was conducted by WUSTL associate professor of psychiatry Dr. Eric J. Lenze while at the University of Pittsburgh. His team studied 177 people over the age of 60.


References:
  1. Jan. 20, 2009 — Antidepressant Eases Anxiety in Older Adults in the The Washington Post
and 4 others.
The Bush Legacy

Examining the Bush legacy, which won't be an easy one for future historians to assess. While most unsuccessful presidencies involved presidents who were considered captives of events, unable to muster effective responses, Bush's was one of bold strokes that, for better or worse, will be debated for a long time. WUSTL law professor Rebecca Dresser, who serves on the President's Council on Bioethics, comments on the stem cell research decision.


References:
  1. Jan. 12, 2009 — The Bush Legacy in the The Boston Globe
Black churches help enlist first-time blood donors

Black churches that hold blood drives after informing parishioners about the importance of blood donations for children with sickle cell disease will get a big upsurge in first-time donors, new research shows. WUSTL School of Medicine sickle cell researcher Michael DeBaun comments.


References:
  1. Dec. 24, 2008 — Black churches help enlist first-time blood donors in the Reuters Health Medical News
and 4 others.
Gene found to protect against lung cancer

WUSTL molecular cell biology professor Greg Longmore is part of a team of medical scientists who say they have identified a gene that protects the body from developing lung cancer.

British and U.S. medical scientists say they have identified a gene that protects the body from developing lung cancer. One of the lead researchers is WUSTL molecular cell biology professor Greg Longmore.


References:
  1. Dec. 4, 2008 — Gene found to protect against lung cancer in the United Press International
and 3 others.
New gene silencing pathway found in plants

WUSTL researchers led by WUSTL biology professor Craig Pikaard have made major headway in explaining a mechanism by which plant cells silence potentially harmful genes.


References:
  1. Nov. 17, 2008 — New gene silencing pathway found in plants in the ScientistLive.com (UK)
Itching puzzles experts

Scientists are baffled by one of humankind's most annoying problems — itching — an almost universal misery for which there is, as yet, no adequate explanation or treatment. The recent discovery of an ''itchy gene,'' however, may offer hope for better treatments, says WUSTL neuroscientist Zhou-Feng Chen.


References:
  1. Nov. 18, 2008 — Itching puzzles experts in the The Miami Herald
and 18 others.
Alzheimer's Gene Slows Brain's Ability To Export Toxic Protein

People who carry two copies of a particular gene have roughly eight to 10 times the risk of getting Alzheimer's disease than people who do not. WUSTL neuroscientist David Holtzman and graduate student Mary Beth Finn, were among the group of scientists that conducted research for this study.


References:
  1. Nov. 14, 2008 — Alzheimer's Gene Slows Brain's Ability To Export Toxic Protein in the ScienceDaily.com

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