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Thursday, August 1, 2013

ScienceDaily: Top Health News

ScienceDaily: Top Health News


Fertility therapy not associated with long-term cardiovascular disease

Posted: 31 Jul 2013 08:01 PM PDT

Women who gave birth following fertility treatment had no long-term increased risk of death or major cardiovascular events compared to women who gave birth without fertility therapy, according to new research.

Understanding the effects of genes on human traits

Posted: 31 Jul 2013 01:47 PM PDT

Recent technological developments in genomics have revealed a large number of genetic influences on common complex diseases, such as diabetes, asthma, cancer or schizophrenia. However, discovering a genetic variant predisposing to a disease is only a first step. Scientists now propose a novel approach for scanning the entire genome that will help us understand the effect of genes on human traits.

A glass of milk after eating sugary cereals may prevent cavities

Posted: 31 Jul 2013 01:47 PM PDT

Sugary cereals eaten dry could cause tooth decay, but when washed down with milk after eating, plaque acid levels are reduced, reducing damage to tooth enamel that leads to cavities, according to new research.

Anemia linked to increased risk of dementia

Posted: 31 Jul 2013 01:47 PM PDT

Anemia, or low levels of red blood cells, may increase the risk of dementia, according to a new study.

One in three U. S. youths report being victims of dating violence

Posted: 31 Jul 2013 12:22 PM PDT

About one in three American youths age 14-20 say they've been of victims of dating violence and almost one in three acknowledge they've committed violence toward a date, according to new study.

New variants at gene linked to kidney disease, sleeping sickness resistance

Posted: 31 Jul 2013 10:39 AM PDT

A new study involves a classic case of evolution's fickle nature: a genetic mutation that protects against a potentially fatal infectious disease also appears to increase the risk of developing a chronic, debilitating condition.

Digest this: Cure for cancer may live in our intestines

Posted: 31 Jul 2013 10:31 AM PDT

Treating a cancerous tumor is like watering a houseplant with a fire hose -- too much water kills the plant, just as too much chemotherapy and radiation kills the patient before it kills the tumor. However, if the patient's gastrointestinal tract remains healthy and functioning, the patient's chances of survival increase exponentially.

Flexible tail of the prion protein poisons brain cells

Posted: 31 Jul 2013 10:31 AM PDT

Prion proteins are the infectious pathogens that cause Mad Cow Disease and Creutzfeldt-Jakob disease. They occur when a normal prion protein becomes deformed and clumped. The naturally occurring prion protein is harmless and can be found in most organisms. In humans, it is found in our brain cell membrane. By contrast, the abnormally deformed prion protein is poisonous for the brain cells. Scientists have now discovered that the prion protein has a kind of switch that controls its toxicity.

Cross-country collaboration leads to new leukemia model

Posted: 31 Jul 2013 09:29 AM PDT

They were postdocs at Stanford when they first began considering the problem. Eight years later, and a continent apart, they found the answer.

New therapy improves life span in melanoma patients with brain metastases

Posted: 31 Jul 2013 09:29 AM PDT

The treatment, given to patients with brain metastases, triggers the body's own immune system to recognize and destroy cancer cells.

Physicists discover theoretical possibility of large, hollow magnetic cage molecules

Posted: 31 Jul 2013 09:29 AM PDT

Researchers have discovered, in theory, the possibility of creating large, hollow magnetic cage molecules that could one day be used in medicine as a drug delivery system to non-invasively treat tumors, and in other emerging technologies.

Promising new direction for organ regeneration and tissue repair

Posted: 31 Jul 2013 09:28 AM PDT

Researchers have identified an entirely new approach to enhance tissue growth, findings that could lead to advances in organ regeneration and tissue repair, with widespread therapeutic applications.

New protein discovered with vast potential for treatment of cancer and other diseases

Posted: 31 Jul 2013 09:28 AM PDT

In cancer research, discovering a new protein that plays a role in cancer is like finding a key and a treasure map: follow the clues and eventually there could be a big reward. At least that's the hope from a new study that discovered a novel protein called ceramide-1 phosphate transport protein.

By tracking maggots' food choices, scientists open significant new window into human learning

Posted: 31 Jul 2013 09:26 AM PDT

The larva of the fruit fly is helping scientists understand the way humans learn information from each other. Fruit flies have long served as models for studying behavior, but new findings show their larvae may be even more valuable. Researchers were able to demonstrate that the larvae, or maggots, are capable of social learning, which opens the door to many other experiments that could provide valuable insights into human behavior.

Computational biology: Cells reprogrammed on the computer

Posted: 31 Jul 2013 07:55 AM PDT

Scientists have developed a model that makes predictions from which differentiated cells -- for instance skin cells -- can be very efficiently changed into completely different cell types -- such as nerve cells, for example. This can be done entirely without stem cells. These computer-based instructions for reprogramming cells are of huge significance for regenerative medicine.

Studying the emotions which cause opinions to change

Posted: 31 Jul 2013 07:41 AM PDT

Physicists can use their tools to help understand how, in real life, opinions form and change.

Sensitive parenting can boost premature children's school performance

Posted: 31 Jul 2013 07:41 AM PDT

Sensitive parenting helps protect against the negative effects of being born prematurely on children's school success, a new study has found.

Scientists analyze genetic makeup of human and mouse embryos in amazing detail

Posted: 31 Jul 2013 06:39 AM PDT

Scientists have used the powerful technology of single-cell RNA sequencing to track the genetic development of a human and a mouse embryo at an unprecedented level of accuracy. The success of this technique could lead to genetic diagnoses of diseases with higher resolution and in embryos earlier than ever achieved before, even when the embryo consists of only eight cells.

Ancient viruses that function in early human development may play role in cancer

Posted: 31 Jul 2013 06:39 AM PDT

Novel non-coding parts of the human genome known as vlincRNAs (very long intergenic, non-coding RNAs) triggered by ancient viruses, participate in the biology of stem cells, and in the development of cancer. Importantly, scientists found that the elimination of these vlincRNAs caused the death of cancer cells.

Autism symptoms not explained by impaired attention

Posted: 31 Jul 2013 06:37 AM PDT

Two aspects of attention -- reorienting focus and attending to social information -- do not seem to account for the diversity symptoms seen in autistic children, according to new research.

BPA exposure disrupts human egg maturation

Posted: 31 Jul 2013 06:37 AM PDT

Exposure to BPA (Bisphenol-A) could be a contributing factor as to why some infertile couples are having difficulty conceiving.

Naked mole rat's secret to staying cancer free

Posted: 31 Jul 2013 06:32 AM PDT

Scientists have discovered the naked mole rat's unique mechanism to staying cancer free -- a super sugar called high-molecular-mass Hyaluronan (HMM-HA). When secreted by the naked mole rat's cells, this molecule prevents cells from overcrowding and forming tumors. Researchers now say using naked mole-rat HMM-HA in the clinic could open up new avenues for cancer prevention and life extension in humans.

Stem cells in urine easy to isolate and have potential for numerous therapies

Posted: 31 Jul 2013 06:32 AM PDT

Could harvesting stem cells for therapy one day be as simple as asking patients for a urine sample? Researchers have identified stem cells in urine that can be directed to become multiple cell types.

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