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Evidence could prove that humans have unique cortical brain networks

Our ancestors evolutionarily split from those of rhesus monkeys about 25 million years ago. Since then, brain areas have been added, have disappeared or have changed in function. This raises the question, 'Has evolution given humans unique brain structures?'. Scientists have entertained the idea before but conclusive evidence was lacking. By combining different research methods, we now have a first piece of evidence that could prove that humans have unique cortical brain networks.

25 Feb 2013

Scientists identify mechanosensitive cellular signaling pathway in myofibroblasts

Pulmonary fibrosis is a scarring or thickening of the lungs that causes shortness of breath, a dry cough, fatigue, chest discomfort, weight loss, a decrease in the ability of the lungs to transmit oxygen to the blood stream, and, eventually, heart failure.

24 Feb 2013

A good night's sleep can also help promote cardiovascular health

Cutting back on sodium and increasing physical activity are not the only ways to improve heart health - a good night's sleep can also help promote cardiovascular health. One expert at the University of Alabama at Birmingham (UAB) says not getting enough sleep can have harmful heart-health effects.

24 Feb 2013

UAB becomes first in America to test experimental therapy for emphysema

A patient at the University of Alabama at Birmingham (UAB) became the first person in America to undergo an investigational therapy for emphysema that uses a foam sealant sprayed into the lungs.

23 Feb 2013

HIF-1α protein can work directly to stop new cells from forming

A protein known for turning on genes to help cells survive low-oxygen conditions also slows down the copying of new DNA strands, thus shutting down the growth of new cells, Johns Hopkins researchers report. Their discovery has wide-ranging implications, they say, given the importance of this copying - known as DNA replication - and new cell growth to many of the body's functions and in such diseases as cancer.

23 Feb 2013

EO2 Concepts develops innovative dressing for difficult-to-heal wounds

EO2 Concepts has developed an innovative dressing for difficult-to-heal wounds that is as easy to apply as a Band-Aid.

23 Feb 2013

Brain cooling after severe head injury may prevent epileptic seizures

In the weeks, months and years after a severe head injury, patients often experience epileptic seizures that are difficult to control. A new study in rats suggests that gently cooling the brain after injury may prevent these seizures.

22 Feb 2013

Vanderbilt investigators report new insights into workings of calprotectin

On the front lines of our defenses against bacteria is the protein calprotectin, which "starves" invading pathogens of metal nutrients. Vanderbilt investigators now report new insights to the workings of calprotectin - including a detailed structural view of how it binds the metal manganese.

22 Feb 2013

CB2 receptors might serve as potential therapeutic targets for cerebral ischemia

A new study published in the March issue of The American Journal of Pathology suggests that cortical type 2 cannabinoid (CB2) receptors might serve as potential therapeutic targets for cerebral ischemia.

22 Feb 2013

Craniofacial surgeons recommend steps to reduce risk of pneumonitis from povidone-iodine

A routine step in preparing for cleft palate surgery in a child led to an unusual-but not unprecedented-case of lung inflammation (pneumonitis), according to a report in the The Journal of Craniofacial Surgery. The journal, edited by Mutaz B. Habal, MD, FRCSC, is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.

22 Feb 2013

Donated liver survival rate improved by antioxidant

Researchers from Italy have found that the antioxidant, N-acetylcysteine (NAC), when injected prior to harvesting of the liver, significantly improves graft survival following transplantation. Results published in the February issue of Liver Transplantation, a journal of the American Association for the Study of Liver Diseases (AASLD), suggest that the NAC effect on early graft function and survival is higher when suboptimal organs are used.

21 Feb 2013

Resveratrol may protect against hearing and cognitive decline

Resveratrol, a substance found in red grapes and red wine, may have the potential to protect against hearing and cognitive decline, according to a published laboratory study from Henry Ford Hospital in Detroit.

21 Feb 2013

Internationally-recognized cancer clinician named first K. Hasumi Professor of Medical Oncology

Internationally-recognized cancer clinician and researcher Takami Sato, M.D., Ph.D., who serves as the Director of the Metastatic Uveal Melanoma Program in the Department of Medical Oncology at Thomas Jefferson University, has been named the first K. Hasumi Professor of Medical Oncology.

20 Feb 2013

Immature malaria parasites more resistant to treatment with artemisinin

New research has revealed that immature malaria parasites are more resistant to treatment with key antimalarial drugs than older parasites, a finding that could lead to more effective treatments for a disease that kills one person every minute and is developing resistance to drugs at an alarming rate.

20 Feb 2013

Tranylcypromine may also hold promise in treating sickle cell disease

An antidepressant drug used since the 1960s may also hold promise for treating sickle cell disease, according to a surprising new finding made in mice and human red blood cells by a team from the University of Michigan Medical School.

19 Feb 2013

Caffeine intake during pregnancy associated with low birth weight babies

Maternal nutrition is important to a developing embryo and to the health of the child later in life. Supplementing the diet with specific vitamins is known to increase health of the foetus for example folic acid (vitamin B9) reduces the risk of spina bifida. However not everything an adult might consume is beneficial to a developing baby.

19 Feb 2013

New study reveals how control of brain blood flow develops with age

A new study by Columbia Engineering researchers finds that the infant brain does not control its blood flow in the same way as the adult brain. The paper, which the scientists say could change the way researchers study brain development in infants and children, is published in the February 18 Early Online edition of Proceedings of the National Academy of Sciences (PNAS).

19 Feb 2013

Oxidative stress: the price of sucrose pain relief in neonates

Although sucrose significantly reduces the pain experienced by preterm neonates undergoing heel lance, it is associated with significant increases in adenosine triphosphate use and oxidative stress, the results of a US study indicate.

19 Feb 2013

Oxidized CaMKII may increase risk of death in diabetics following heart attack

Having diabetes doubles a person's risk of dying after a heart attack, but the reason for the increased risk is not clear. A new University of Iowa study suggests the link may lie in the over-activation of an important heart enzyme, which leads to death of pacemaker cells in the heart, abnormal heart rhythm, and increased risk of sudden death in diabetic mice following a heart attack.

18 Feb 2013

Researchers identify new molecular pathway involved in alveoli growth

In a study of mice, researchers at Johns Hopkins have identified a new molecular pathway involved in the growth of tiny air sacs called alveoli that are crucial for breathing. The scientists say their experiments may lead to the first successful treatments to regrow the air sacs in people who suffer from diseases such as emphysema in which the air sacs have been destroyed by years of smoking.

15 Feb 2013