Body

Mayo Clinic reports its first lung transplantation by donation after cardiac death

ROCHESTER, Minn. - Lung transplantation is a well-known therapy for patients with end-stage lung disease, but, as with other patients waiting for organs for transplantation, there are more recipients waiting than donors available. A potential solution for patients with end-stage lung disease is donation after cardiac death (DCD). Mayo Clinic reports its - and Minnesota's - first lung transplantation from DCD in the February issue of Mayo Clinic Proceedings.

Understanding global climate change through new breakthroughs in polar research

The latest findings from research on Antarctica's rich marine life are presented this week at the American Association for the Advancement of Science (AAAS). Marine Biologist Huw Griffiths from British Antarctic Survey (BAS) is involved in a major international investigation into the distribution and abundance of Antarctica's vast marine biodiversity – the Census of Antarctic Marine Life (CAML).

Most maternal deaths in sub-Saharan Africa could be avoided

More than 500,000 women die each year worldwide due to complications arising from pregnancy and childbirth. Half of these women live in sub-Saharan Africa. A research team from the King Juan Carlos University (URJC) in Madrid says these women are not dying as a result of any illness, but rather from a lack of basic healthcare measures.

"Maternal mortality is a good indicator of a country's healthcare situation and of the inequalities between men and women", José Luis Álvarez, the lead author of this study and a researcher at the URCJ in Madrid, tells SINC.

University of Minnesota scientist finds that big plant seeds don't always beat out small seeds

University of Minnesota College of Biological Sciences researcher Helene Muller-Landau has developed a new theory explaining why some plant species produce a small number of large seeds while others produce a large number of small seeds.

Untreated poor vision in elderly linked to dementia, University of Michigan study shows

ANN ARBOR, Mich. — Elderly people with visual disorders that are left untreated are significantly more likely to develop Alzheimer's disease -- the most common form of dementia, according to a University of Michigan Health System study.

The study used Medicare data and shows that those with poor vision who visited an ophthalmologist at least once for an examination were 64 percent less likely to develop dementia.

Giant panda genome reveals new insights into the bear's bamboo diet

A Chinese-led team including international researchers with a scientist from Cardiff University, has shed new light on some of the giant panda's unusual biological traits, including its famously restricted diet.

The team has successfully sequenced the panda genome for the first time and now, the genetic insights gleaned from the work may aid conservation efforts for the endangered species.

Giant pandas are known for their bamboo diet but the researchers discovered that the animal actually lacks the genes necessary for compete digestion of this staple food source.

When molecules leave tire tracks

Some classes of molecules are capable of arranging themselves in specific patterns on surfaces. This ability to self-organize is crucial for many technological applications, which are dependend on the assembly of ordered structures on surfaces. However, it has so far been virtually impossible to predict or control the result of such processes. Now a group of researchers led by Dr.

Seeds from the Moringa tree can be used for water purification

Pure water is a key requirement for good health and alternative cheap, safe methods are required in many countries. In a paper that has just been published in the leading American Chemical Society journal on interfaces, Langmuir, researchers from Uppsala University in co-operation with The University of Botswana describe how extracts from seeds of the Moringa oleifera tree can be used for water purification.

MDC researchers link protein tether to touch perception

Humans and animals are able to perceive even the slightest vibration and touch of the skin. Mechanosensitive ion channels play a crucial role in the mediation of these sensations. Ion channels are pores in the cell membrane which are highly responsive to external signals. Mechanosensitive ion channels open at the slightest vibration and allow ions (electrically charged particles), to cross the cell membrane, which causes an electrical current until the channel closes again. Until now it was unclear how the ion channels were opened. Dr.

New research reveals threat to monkey numbers from forest decline

Monkey populations in threatened forests are far more sensitive to damage to their habitat than previously thought, according to new research.

An analysis of monkeys living in Tanzania's Udzungwa Mountains suggests that the impact of external factors, such as human activity, on species numbers is felt in forests as large as 40 square kilometres.

Researchers also found that the health of monkey populations is closely related to the type of habitat found between forest fragments, rather than the distance that separates them.

Life's smallest motor, cargo carrier of the cells, moves like a seesaw

Life's smallest motor, a protein that shuttles cargo within cells and helps cells divide, does so by rocking up and down like a seesaw, according to research conducted by scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory and Brandeis University.

Researchers discover second protective role for tumor-suppressor

HOUSTON - ATM, a protein that reacts to DNA damage by ordering repairs or the suicide of the defective cell, plays a similar, previously unknown role in response to oxidative damage outside of the nucleus, researchers report this week in the online version of the Proceedings of the National Academy of Sciences.

Don't worry, be happy! Positive emotions protect against heart disease

People who are usually happy, enthusiastic and content are less likely to develop heart disease than those who tend not to be happy, according to a major new study published today (Thursday 18 February).

The authors believe that the study, published in the Europe's leading cardiology journal, the European Heart Journal [1], is the first to show such an independent relationship between positive emotions and coronary heart disease.

Chronic migraineurs sicker, poorer and more depressed than episodic migraineurs

Chronic migraine sufferers tend to be in poorer general health, less well off, and more depressed than those with episodic migraine, reveals research published ahead of print in the Journal of Neurology Neurosurgery and Psychiatry.

The findings are based on almost 12,000 adults with episodic - a severe headache on up to 14 days of the month - or chronic migraine - headache on 15 or more days of the month.

Southern African genomes sequenced: Benefits for human health expected

Human genomes from Southern African Bushmen and Bantu individuals have been sequenced by a team of scientists seeking a greater understanding of human genetic variation and its effect on human health. The study's findings will be published in the journal Nature on 18 February 2010. The research was completed by scientists from American, African, and Australian research institutions, with support from Penn State University in the United States and from several U.S. companies that market DNA-sequencing instruments.