Archive for the ‘Biology / Biochemistry’ Category

Survey: Patients harmed by anemia drug policy

Sunday, February 17th, 2008

Washington — A new Medicare coverage policy on drug treatment for anemic cancer patients is hurting care, according to a survey of doctors released last month.

Ninety-one percent of oncologists and hematologists reported adverse patient events in the 12 weeks after the July 30 implementation of the national coverage determination on erythropoiesis-stimulating agents. The poll was sponsored by U.S. Oncology, which funds, develops, and helps manage 443 cancer centers in 39 states. It surveyed 307 physicians from Nov. 26, 2007, to Dec. 11, 2007. The organization limited the number of affiliated physicians involved in the poll to 20% of all respondents.


A faster way to recover from chemotherapy and marrow transplant

Friday, December 21st, 2007

Researchers at Children’s Hospital Boston report finding a new way to increase stem cells in blood, suggesting a possible treatment to help patients who undergo chemotherapy or bone marrow transplant for leukemia and other cancers recover their immune function more quickly. In the June 21 issue of Nature, they demonstrate that a stable analog of prostaglandin can enhance the blood-forming system, both during embryonic development and after it’s been damaged.


Sperm abnormalities seen in male lupus patients

Friday, December 21st, 2007

The prognosis for systemic lupus erythematosus (SLE), an autoimmune disease that mainly affects women in their reproductive years, has improved recently, prompting a shift toward improving quality of life. For men with SLE, concerns have been raised about their future fertility. However, no studies have been conducted to date on testes function and its relevance to sperm abnormalities in male SLE patients.

A new study published in the July 2007 issue of Arthritis & Rheumatism examined gonad function in male SLE patients and found that they have a high frequency of sperm abnormalities associated with reduced testicular volume. In addition, the study identified intravenous treatment with the immunosuppressant cyclophosphamide (IV CYC) as the major factor in permanent damage to the testes.


New Statin Free Drug is Effective at Cutting Heart Attack Risk

Thursday, December 20th, 2007

(Ivanhoe Newswire) – A new and different kind of cholesterol-lowering drug is proving safe and effective at reducing the risk of heart disease.

In its first clinical trial, the new drug, known only as KB2115, has been shown to cut low density lipoprotein ‘bad’ cholesterol (LDL) by 40%. The best drug trial using cholesterol cutting statins show that they reduce the incidence of new heart attacks by only 35%.

KB2115 mimics the action of thyroid hormone and safely speeds up the hormone’s natural ability to get rid of LDL out of the body. Until now, efforts to attack cholesterol using drugs that mimic thyroid hormone have been unsuccessful because in addition to the (more…)

Monkeys Perform Arithmetic As Well As College Students

Thursday, December 20th, 2007

(Ivanhoe Newswire) – When it comes to nonverbal arithmetic, a new study shows that monkeys can hold their own against college students.

A study appearing in the open-access Public Library of Science (PLoS) Biology, researchers Elizabeth Brannon and Jessica Cantlon set out to discover if humans and nonhuman animals share a capacity for nonverbal arithmetic. They had monkeys and college students add the numerical value of two sets of dots and choose a stimulus from two options that reflected the answer. They found that monkeys perform approximate mental addition in a way that is remarkable similar to the way the college students perform the exercise.


Question Raised About False-positive Cardiac Cathetorization

Thursday, December 20th, 2007

(Ivanhoe Newswire) –Restoring blood flow (reperfusion) in heart attack victims with a blocked artery is a race against time. To get reperfusion quickly current emergency guidelines recommend that when someone is suspected of having a blocked artery heart attack (STEMI), emergency doctors immediately activate a cardiac catheterization laboratory and get the patient an angioplasty or a stent as soon as possible. The immediate activation is necessary so that laboratory personal can be in place before the doctor makes the decision about the need for a procedure rather than waiting until they see the results to call the catheterization team in.


I had been suffering with allergy type symptoms (Peanut Allergies Pregnancy)

Tuesday, December 18th, 2007

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Alternative Health Care Center

Monday, December 17th, 2007

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Oxford Journals; Medicine; American Journal of Epidemiology; Volume 161 Biostatistics, The Rollins School of Public Men’s health The alternative plan, supported by mathematical models and

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Prenatal Alcohol Exposure Increases Risk of Future Alcohol Abuse

Friday, December 14th, 2007

(Ivanhoe Newswire) – There may be a new explanation for why teens with a family history of drinking may drink more themselves.

Two new studies from the State University of New York Developmental Ethanol Research Center find the fetus of a mother who drinks while she’s pregnant learns to prefer alcohol’s taste and smell and is more likely to abuse alcohol later in life.

In one study rats exposed to alcohol (ethanol) in the womb drank much more of it in youth but not in adulthood. Researchers say when the developing nervous system senses ethanol in amniotic fluid, it adapts to it without knowing which chemicals will help or hurt the organism and ends up “liking” the taste and smell of ethanol. But if the nervous system doesn’t have any more experience with ethanol by adulthood, it loses its appeal for it.


Gene Linked to Aggressive Prostate Cancer

Thursday, December 13th, 2007

(Ivanhoe Newswire) – It is believed that there is a genetic component that predisposes some men to develop prostate cancer. Now, a new study identifies a gene that may be associated with aggressive prostate cancer.

Researchers at Wake University School of Medicine conducted the latest research along with investigators from Johns Hopkins Hospital. They looked at genetic changes to a single DNA base-pair that is known as SNPs (single nucleotide polymorphisms). Included in the research were 1,000 Swedish men with and without the disease. Then the SNPs that were most associated with prostate cancer underwent further study at Johns Hopkins Hospital.