Δευτέρα, 12 Μαΐου 2014

ScienceDaily: Top Health News

ScienceDaily: Top Health News

Fourfold increase in rate of diagnosed cases of celiac disease in the UK

Posted: 11 May 2014 06:48 PM PDT

New research has found a fourfold increase in the rate of diagnosed cases of celiac disease in the United Kingdom over the past two decades, but, still it appears that three quarters of people with celiac disease remain undiagnosed.

Galectins direct immunity against bacteria that employ camouflage

Posted: 11 May 2014 01:55 PM PDT

Our bodies produce a family of proteins that recognize and kill bacteria whose carbohydrate coatings resemble those of our own cells too closely. Called galectins, these proteins recognize carbohydrates from a broad range of disease-causing bacteria, and could potentially be deployed as antibiotics to treat certain infections.

Patient stem cells used to make 'heart disease-on-a-chip'

Posted: 11 May 2014 01:55 PM PDT

Scientists have merged stem cell and 'organ-on-a-chip' technologies to grow, for the first time, functioning human heart tissue carrying an inherited cardiovascular disease. The research appears to be a big step forward for personalized medicine, as it is working proof that a chunk of tissue containing a patient's specific genetic disorder can be replicated in the laboratory.

Flexible supercapacitor raises bar for volumetric energy density; Could be woven into clothes to power devices

Posted: 11 May 2014 01:55 PM PDT

Scientists have taken a large step toward making a fiber-like energy storage device that can be woven into clothing and power wearable medical monitors, communications equipment or other small electronics. Their supercapacitor packs an interconnected network of graphene and carbon nanotubes so tightly that it stores energy comparable to some thin-film lithium batteries.

Predicting hepatitis C treatment success

Posted: 09 May 2014 10:16 AM PDT

Levels of interferon-stimulated genes in the liver and blood could help predict if a patient with hepatitis C will respond to conventional therapy, researchers suggest. The team analyzed liver and blood samples from hepatitis C patients taken before treatment, and found that fewer immune cells reached the livers of patients with the therapy-resistant genotype.

Calcium supplements not associated with increased risk of cardiovascular disease in women

Posted: 09 May 2014 10:00 AM PDT

Calcium supplements are widely taken by women for bone health. Previous studies have suggested that calcium supplements may increase risk of cardiovascular disease, but the data has been inconsistent. A new study did not find that calcium supplement intake increases risk of cardiovascular disease in women. The researchers found that at the start of the study, women who took calcium supplements had higher levels of physical activity, smoked less, and had lower trans fat intake compared to women who did not take calcium supplements.

Improved detection of patient disabilities can reduce disparities in clinical care

Posted: 09 May 2014 09:59 AM PDT

People with disabilities have greater risk for experiencing healthcare disparities and differences in diagnoses, treatments and outcomes, according to research. Nearly 20 percent of the U.S. population lives with a disability, but little attention has been paid to improving the quality of healthcare provided to disabled patients. A major factor has been inadequate identification of specific disabilities.

Shorter men live longer, study shows

Posted: 09 May 2014 08:07 AM PDT

Short height and long life have a direct connection in Japanese men, according to new research. Shorter men are more likely to have a protective form of the longevity gene, FOXO3, leading to smaller body size during early development and a longer lifespan. Shorter men are also more likely to have lower blood insulin levels and less cancer.

Long-term childhood poverty contributes to young adult obesity rates

Posted: 09 May 2014 08:07 AM PDT

Childhood poverty reaches into the lives of white, Hispanic and African-American young adult women, contributing to their propensity to be overweight and obese, a research study finds. The study examined how repeated exposure to poverty during childhood impacts a young adult's risk of being overweight or obese, as well as the impact of family dynamics on nutrition, health and obesity.

Forty not too old or too late to start endurance training

Posted: 09 May 2014 08:07 AM PDT

A study of healthy senior men has found that 'relatively intensive' endurance exercise confers benefits on the heart irrespective of the age at which they began training. The benefits were evident and comparable in those who had started training before the age of 30 or after the age of 40. As a result, said the investigators, 40 is not too old to start endurance training.

Adult obesity predicted in almost all European countries by 2030

Posted: 09 May 2014 08:07 AM PDT

Rates of obesity and overweight in both male and females are projected to increase in almost all countries of Europe by 2030, according to a statistical modelling study. However, the forecast rates vary throughout the 53 Euro-region countries, with projected male obesity levels ranging from 15 percent in the Netherlands and Belgium, to 47 percent in Ireland. The highest obesity prevalence in females was projected in Ireland (47 percent), and the lowest in Romania (10 percent).

Sustainability needs link between theory, practice in education

Posted: 09 May 2014 08:03 AM PDT

How can you ensure that people do not only spend time thinking about important global issues like climate change or world food supplies, but also roll up their sleeves and do something about them? Researchers think that the education sector holds the key. Teaching processes around the world could be given more influence and meaning by making pure science subjects, such as biology and physics, complementary to lessons in nature, environment and sustainability.

Grape skin extract may soon be answer to treating diabetes

Posted: 09 May 2014 08:02 AM PDT

The diabetes rate in the United States nearly doubled in the past 10 years. Approximately 26 million Americans are now classified as diabetic, stressing an urgent need for safe and effective complementary strategies to enhance the existing conventional treatment for diabetes.Preliminary studies have demonstrated that grape skin extract (GSE) exerts a novel inhibitory activity on hyperglycemia and could be developed and used to aid in diabetes management.

States opting out of Medicaid leave 1.1 million community health center patients without health insurance

Posted: 09 May 2014 04:45 AM PDT

An estimated 1.1 million community health center patients are left without the benefits of health coverage simply because they live in one of 24 states that have opted out of the Medicaid expansion, a key part of the Affordable Care Act, according to a new report. The vast majority (71 percent) of the 1.1 million patients left behind live in just 11 southern states (AL, FL, GA, LA, MS, NC, OK, SC, TN, TX, VA).

Implantable cuff with electrodes

Posted: 09 May 2014 04:42 AM PDT

High blood pressure is the greatest health risk worldwide behind smoking and alcohol consumption. Microsystems engineers and neurosurgeons have teamed up to develop a new cuff equipped with electrodes that can lower blood pressure without causing side effects. The scientists tested the device on rats and succeeded in lowering their mean blood pressure by 30 percent, without causing side effects such as a reduced heart rate or a drastic decrease in respiratory rate.

Frequent arguments with family, friends linked to doubling in death risk in middle age

Posted: 08 May 2014 04:25 PM PDT

Frequent arguments with partners, relatives, or neighbors may boost the risk of death from any cause in middle age, suggests research. Men and those not in work seemed to be the most vulnerable, the findings indicate. Constant arguing seemed to be the most harmful for health. The evidence also suggests that supportive social networks and strong relationships are good for general health and wellbeing.

Short bursts of intense exercise before meals control blood sugar better than 1 continuous 30 minute session

Posted: 08 May 2014 04:24 PM PDT

Brief bursts of intense exercise before meals helps control blood sugar in people with insulin resistance more effectively than one daily 30-minute session of moderate exercise, a study finds. "The notion of doing small amounts of interval exercise before meals is a unique and very important feature of this study," says one researcher. "Sustained hyperglycaemia following meals is an important feature of insulin resistance. Reducing these post-meal spikes is important for reducing the risk of developing type 2 diabetes and its associated complications."

Extra doctor visit may help prevent rehospitalization of kidney failure patients

Posted: 08 May 2014 02:22 PM PDT

Among kidney failure patients on dialysis who were treated in the hospital, one additional doctor visit in the month following hospital discharge was estimated to reduce the probability of 30-day hospital readmission by 3.5 percent. Seeing kidney failure patients one additional time in the month following discharge could save $240 million in health care costs each year.

Common test used on heart patients who need defibrillator implants unnecessary: Study

Posted: 08 May 2014 02:20 PM PDT

A commonly performed test during certain types of heart surgery is not helpful and possibly harmful. The testing procedure, known as defibrillator testing (DT), is commonly used on people who require implantable cardioverter-defibrillators (ICDs) to prevent sudden cardiac death. It involves putting the patient into cardiac arrest to determine if the defibrillator can first recognize, then successfully shock the patient back into a normal heart rhythm. It requires the use of general anesthesia and is associated with uncommon but potentially life-threatening complications.

Ovarian cancer cells more aggressive on soft tissues

Posted: 08 May 2014 12:12 PM PDT

When ovarian cancer spreads from the ovaries it almost always does so to a layer of fatty tissue that lines the gut. A new study has found that ovarian cancer cells are more aggressive on these soft tissues due to the mechanical properties of this environment. The finding is contrary to what is seen with other malignant cancer cells that seem to prefer stiffer tissues.

Few women at high-risk for hereditary breast, ovarian cancer receive genetic counseling

Posted: 08 May 2014 11:18 AM PDT

Mutations in the BRCA1 and BRCA2 genes account for nearly 25 percent of hereditary breast cancers and most hereditary ovarian cancers, yet a study by cancer prevention and control researchers suggests an alarmingly small amount of women who qualify for BRCA genetic counseling actually receive the services. Additionally, they found that a significant proportion of women with a family history of breast and ovarian cancer underestimate their risk.

Statins given early decrease progression of kidney disease

Posted: 08 May 2014 10:32 AM PDT

Pravastatin, a medicine widely used for treatment of high cholesterol, also slows down the growth of kidney cysts in children and young adults with autosomal dominant polycystic kidney disease (ADPKD), a study has shown. ADPKD is the most common potentially lethal hereditary kidney disease, affecting at least 1 in 1000 people. ADPKD is characterized by progressive kidney enlargement due to cyst growth, which results in loss of kidney function over time.

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