ScienceDaily: Health & Medicine News

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• Methylation signaling controls cancer growth
• Quantitative approaches provide new perspective on development of antibiotic resistance
• High cholesterol fuels growth, spread of breast cancer
• Scientists achieve most detailed picture ever of key part of hepatitis C virus
• Gene found responsible for susceptibility to panic disorder
• The heart's own stem cells play their part in regeneration
• Researchers block replication of AIDS virus
• Mediterranean diet without breakfast best choice for diabetics
• Mobility explains association between social activity, mortality risk in older people
• Pre-existing diabetes in pregnancy increases risk of fetal, infant death
• Public health data to help fight deadly contagious diseases
• Simulating new treatment for retinal degeneration
• Untreated cancer pain a 'scandal of global proportions,' survey shows
• Are you carrying adrenal Cushing’s syndrome without knowing it?
• Good news on the Alzheimer's epidemic: Risk for older adults declining
• New aggressive HIV strain leads to faster AIDS development
• Prevalence of undiagnosed HIV infection low among state prison entrants
• Induced hypothermia does not improve outcomes for patients with severe bacterial meningitis
• Study finds no increased risk of retinal detachment with use of certain antibiotics
• Drug improves remission of Crohn disease among children, adolescents
• Micronutrient supplements reduce risk of HIV disease progression, illness

Methylation signaling controls cancer growth Posted: 28 Nov 2013 11:14 AM PST A study demonstrates a new mechanism involving a signaling protein and its receptor that may block the formation of new blood vessels and cancer growth.

Quantitative approaches provide new perspective on development of antibiotic resistance Posted: 28 Nov 2013 11:14 AM PST Using quantitative models of bacterial growth, a team biophysicists has discovered the bizarre way by which antibiotic resistance allows bacteria to multiply in the presence of antibiotics, a growing health problem in hospitals and nursing homes across the United States.

High cholesterol fuels growth, spread of breast cancer Posted: 28 Nov 2013 11:13 AM PST A byproduct of cholesterol functions like the hormone estrogen to fuel the growth and spread of the most common types of breast cancers, researchers report.

Scientists achieve most detailed picture ever of key part of hepatitis C virus Posted: 28 Nov 2013 11:13 AM PST Scientists have determined the most detailed picture yet of a crucial part of the hepatitis C virus, which the virus uses to infect liver cells. The new data reveal unexpected structural features of this protein.

Gene found responsible for susceptibility to panic disorder Posted: 28 Nov 2013 10:39 AM PST A study published points, for the first time, to the gene trkC as a factor in susceptibility to a panic disorder. The researchers define the specific mechanism for the formation of fear memories which will help in the development of new pharmacological and cognitive treatments.

The heart's own stem cells play their part in regeneration Posted: 28 Nov 2013 07:39 AM PST Up until a few years ago, the common school of thought held that the mammalian heart had very little regenerative capacity. However, scientists now know that heart muscle cells constantly regenerate, albeit at a very low rate. Sca1 stem cells replace steadily aging heart muscle cells, new research shows.

Researchers block replication of AIDS virus Posted: 28 Nov 2013 07:39 AM PST A multidisciplinary team of scientists from Spanish universities and research centers has managed to design small synthetic molecules capable of joining to the genetic material of the AIDS virus and blocking its replication.

Mediterranean diet without breakfast best choice for diabetics Posted: 28 Nov 2013 07:38 AM PST For patients with diabetes, it is better to eat a single large meal than several smaller meals throughout the day. This is the result of a current dietary study.

Mobility explains association between social activity, mortality risk in older people Posted: 28 Nov 2013 07:38 AM PST Social activity and health correlate in old age, but less is known about what explains this association. The results of a study showed that part of the association between social activity and mortality was mediated by mobility among older men and women. Of other potential mediators, having less depressive symptoms and better cognitive functioning are merely prerequisites for social activity.

Pre-existing diabetes in pregnancy increases risk of fetal, infant death Posted: 27 Nov 2013 07:54 PM PST New research shows that pre-existing diabetes in pregnant women greatly increases the risk of death of their unborn fetus by around 4.5 times compared with pregnant women without diabetes, and also almost doubles the risk of death of infants after birth.

Public health data to help fight deadly contagious diseases Posted: 27 Nov 2013 07:54 PM PST In an unprecedented windfall for public access to health data, researchers have digitized all weekly surveillance reports for reportable diseases in the US going back 125 years. Supported by the Bill & Melinda Gates Foundation and the National Institutes of Health, the project's goal is to aid in the eradication of devastating diseases.

Simulating new treatment for retinal degeneration Posted: 27 Nov 2013 07:53 PM PST For a few years, optogenetics has been seen as a very promising therapy for progressive blindness, for example when it is a result of retinal degeneration. In order to further develop this therapeutic approach, researchers have developed a computer model that simulates optogenetic vision.

Untreated cancer pain a 'scandal of global proportions,' survey shows Posted: 27 Nov 2013 07:53 PM PST A new global study reveals a pandemic of intolerable pain affecting billions, caused by over-regulation of pain medicines.

Are you carrying adrenal Cushing’s syndrome without knowing it? Posted: 27 Nov 2013 07:53 PM PST Genetic research suggests that clinicians' understanding and treatment of a form of Cushing's syndrome affecting both adrenal glands will be fundamentally changed, and that moreover, it might be appropriate to begin screening for the genetic mutations that cause this form of the disease.

Good news on the Alzheimer's epidemic: Risk for older adults declining Posted: 27 Nov 2013 07:53 PM PST Improvements in education levels, health care and lifestyle credited for decline in dementia risk.

New aggressive HIV strain leads to faster AIDS development Posted: 27 Nov 2013 08:03 AM PST A recently discovered HIV strain leads to significantly faster development of AIDS than currently prevalent forms, according to new research.

Prevalence of undiagnosed HIV infection low among state prison entrants Posted: 26 Nov 2013 04:15 PM PST An analysis indicates that the prevalence of undiagnosed human immunodeficiency virus (HIV) infection among state prison entrants in North Carolina was low, at 0.09 percent, according to a study.

Induced hypothermia does not improve outcomes for patients with severe bacterial meningitis Posted: 26 Nov 2013 04:15 PM PST In a study of adults with severe bacterial meningitis, therapeutic hypothermia (reduction of body temperature) did not improve outcomes, and it may even have been harmful.

Study finds no increased risk of retinal detachment with use of certain antibiotics Posted: 26 Nov 2013 04:15 PM PST In contrast to findings of a recent study, researchers in Denmark did not find an association between use of a class of antibiotics known as fluoroquinolones (such as ciprofloxacin) and an increased risk of retinal detachment.

Drug improves remission of Crohn disease among children, adolescents Posted: 26 Nov 2013 04:15 PM PST Among children and adolescents with Crohn disease not responding to treatment, use of the drug thalidomide resulted in improved clinical remission after eight weeks of treatment compared with placebo, according to a study.

Micronutrient supplements reduce risk of HIV disease progression, illness Posted: 26 Nov 2013 04:15 PM PST Long-term (24-month) supplementation with multivitamins plus selenium for human immunodeficiency virus (HIV)-infected patients in Botswana in the early stages of disease who had not received antiretroviral therapy delayed time to HIV disease progression, was safe and reduced the risk of immune decline and illness, according to a study.

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