A new study could help pinpoint ways to counter the effects of the antibiotics-driven depletion of friendly, gut-dwelling bacteria. In the first 24 hours after administration of oral antibiotics, a spike in carbohydrate availability takes place in the gut, the study says. This transient nutrient...

A new method of analyzing whole genome sequences of TB, applied to a massive set of strains of the bacteria collected from clinics around the world, has revealed 39 new genes associated with elevated drug resistance. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/3...

A new study has revealed that global warming is resulting in the spread of crop pests towards the North and South Poles at a rate of nearly 3 km a year. The study shows a strong relationship between increased global temperatures over the past 50 years and expansion in the range of crop pests....

Age-induced memory impairment can be suppressed by administration of the natural substance spermidin, a study in fruit flies suggests. Biologists were able to show that the endogenous substance spermidine triggers a cellular cleansing process, which is followed by an improvement in the memory...

The gene mutation process that creates drug resistance in a tuberculosis-causing bacterium often requires more than one step. It is not just a single mutation, but a series, according to new research. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/D...

Nanoscale “cages” made from strands of DNA can encapsulate small-molecule drugs and release them in response to a specific stimulus, researchers report in a new study. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/F...

Researchers have made a breakthrough discovery in identifying the world’s most sensitive nanoparticle and measuring it from a distance using light. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/S...

Un análisis genético mundial de las cepas de la bacteria de la tuberculosis revela que este microorganismo ya infectaba a los primeros humanos antes de que salieran de África. Después, la expansión humana desde el Neolítico favoreció la diversificación genética de la bacteria, según recogen cuatro...

Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Un cohete ucraniano Zenit-3M, despegando desde el cosmódromo de Baikonur, colocó en órbita geoestacionaria a un satélite de comunicaciones llamado Amos-4. El despegue se produjo a las 20:05 UTC del 31 de agosto. Construido por IAI para Spacecom, pesa 3.400 Kg y deberá operar durante 12 años......

Un equipo con participación del Consejo Superior de Investigaciones Científicas (CSIC) en España ha secuenciado el genoma del patógeno Saprolegnia parasitica, responsable de infecciones en diversas poblaciones de peces y anfibios en todo el mundo. Los resultados, publicados en la revista PLOS......

In the treatment of venous thromboembolism (VTE), the oral anticoagulant edoxaban resulted in equal efficacy and better safety compared to standard warfarin when either drug was used with initial low molecular weight heparin, according to the results of the Hokusai-VTE trial. Fuente :...

The Paris Sudden Death Expertise Centre Registry is a population-based registry using multiple sources to collect every case of cardiac arrest in Greater Paris (population 6.6 million) according to the Utstein Style.1 Cases are continuously recorded (within hours of occurrence) and standardized...

Quitting smoking reduces the risk of heart attack and death to the levels of people who have never smoked, reveals research presented at ESC Congress 2013 by Dr. James K. Min and Dr. Rine Nakanishi from the USA. Fuente : http://www.eurekalert.org/pub_releases/2013-09/eso...

The risk of aortic stenosis doubles when a first degree relative had the disease, according to research presented at ESC Congress 2013 today by Dr. Mattis F. Ranthe from Denmark. The study of 4.2 million people from Danish registers also found that aortic stenosis risk increased by eight-fold in...

Aspiration of the blood clot or "thrombus" that causes a heart attack before re-opening a patient's artery with a balloon catheter does not improve survival compared to performing balloon dilation and stenting alone according to the results of the Thrombus Aspiration in ST- Elevation myocardial...

In patients with non-ST-elevation acute coronary syndrome, pre-treatment with the P2Y12 antagonist prasugrel prior to catheterization, significantly increases the risk of life-threatening bleeding without reducing the risk of major ischemic events, according to the results of the ACCOAST (A...

Heart attack patients with ST elevation who undergo a preventive procedure to unblock additional coronary arteries have significantly better outcomes than those whose treatment is confined to the culprit blockage only, according to the results of the Preventive Angioplasty in Myocardial Infarction...

A shortened pre-surgical interruption of anti-thrombotic therapy, compared to the more traditional one-week interruption, has no influence on perioperative complications in cardiac patients, according to the results of the PRAGUE 14 trial. Fuente :...

Mechanical chest compressions with defibrillation during ongoing compressions are just as effective, but not superior to manual compressions, for delivering cardiopulmonary resuscitation (CPR) to patients in cardiac arrest, according to the results of the LUCAS in Cardiac Arrest study. Fuente :...

In patients with atrial fibrillation, delayed enhancement magnetic resonance imaging (DE-MRI) performed before ablative treatment can stage the degree of damaged heart tissue (atrial fibrosis) and help predict whether treatment will be successful or not, according to results of Delayed Enhancement...

High doses of statins prevent dementia in older people, according to new research. The study of nearly 58,000 patients found that high potency statins had the strongest protective effects against dementia. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/v...

Statins lower the rate of cataract by 20 percent, according to new research. The risk of cataract was reduced by 50 percent when treatment was initiated in younger individuals (in their 40s) and the duration of therapy was longer (e.g. up to 14 years). Fuente :...

The CHADS2 stroke risk scores 0 or 1 assign more than one-third of patients in atrial fibrillation with stroke to low or intermediate risk not mandating oral anticoagulation, according to new research. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/j...

Mass screening in more than 25,000 Swedish residents has identified untreated atrial fibrillation in 5 percent of 75-76 year olds, putting them at increased stroke risk. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/T...

Patients with five or more risk factors have the same stroke risk as patients with atrial fibrillation, according to new research. The study included data on more than 4 million patients from Danish registries over a 10 year period. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/A...

The risk of ischemic stroke after acute myocardial infarction in diabetics has dropped over a 10 year period, according to a new study of more than 173,000 AMI patients. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/i...

STEMI incidence fell in southern Switzerland after implementation of the smoking ban in public places, reveals new research. Second-hand smoke increases the risk of coronary artery disease and acute myocardial infarction. For this reason, health policies aimed at reducing tobacco consumption and...

Smokers who survive to 70 still lose an average of four years of life, according to new findings. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/T...