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Science News Archive June 2014 - Page 28


Page 28 of 33

For forests, an earlier spring than ever

Harvard researchers found forests in the Eastern US are showing signs of spring growth earlier than ever, enabling them to store up to 26 million metric tons more CO2. However, continued climate change may lead to more dramatic negative consequences, such as changes in precipitation patterns and reduced water availability for forests.

SourceHarvard University·JournalNature Climate Change·DateJun 5, 2014

Stem cells hold keys to body's plan

Researchers at Case Western Reserve University have identified a new class of genetic switches, called seed enhancers, that guide the development of pluripotent stem cells. These enhancers play roles from before birth to adulthood and hold promise for regenerative medicine and disease prevention.

SourceCase Western Reserve University·JournalCell Stem Cell·DateJun 5, 2014

Improved glucose control slows progression to end-stage renal disease in type 1 diabetes

A long-term observational study found that people with type 1 diabetes who have developed kidney complications can slow the progression of their complications by improving control of their glycemic levels over the long term. Those who lowered their HbA1C levels demonstrated a significantly lower risk of end-stage renal disease after a ...

SourceJoslin Diabetes Center·JournalJournal of the American Society of Nephrology·DateJun 5, 2014

First 3-D pterosaur eggs found with their parents

Researchers have found the first three-dimensionally preserved pterosaur eggs in China, providing new insights into the flying reptiles' reproductive strategy, development, and social behavior. The discovery suggests that pterosaurs lived together in gregarious colonies, with males and females having distinct head crest features.

SourceCell Press·JournalCurrent Biology·DateJun 5, 2014

Brain circuit problem likely sets stage for the 'voices' that are symptom of schizophrenia

Researchers at St. Jude Children's Research Hospital identified a disrupted brain circuit that may contribute to auditory hallucinations in schizophrenia. The study, published in Science, suggests that reducing information flow between two brain structures involved in processing auditory information sets the stage for stress triggers.

NIDA review summarizes research on marijuana's negative health effects

A recent review in the New England Journal of Medicine finds that marijuana use is associated with increased risks of addiction, impaired critical thinking and memory functions, and lower IQ in teens. The study also highlights the need for physicians to convey to families the potential health consequences of early marijuana use.

SourceNIH/National Institute on Drug Abuse·JournalNew England Journal of Medicine·DateJun 4, 2014

Tree hugging helps koalas keep their cool

Researchers found koalas in Australia's tropical northeast choose trees with trunks over 5°C cooler than air temperature to rest and cool down. This behavior helps reduce heat stress, with access to these trees saving about half the water a koala needs on hot days.

SourceJames Cook University·JournalBiology Letters·DateJun 4, 2014

Drug trial shows promise for treating constipation caused by pain medicines

A new study published in the New England Journal of Medicine found that naloxegol increased bowel movements among patients with opioid-induced constipation, providing rapid and sustained relief without compromising pain management. The investigational drug is designed to block opioids from binding to receptors in the gastrointestinal t...

SourceMichigan Medicine - University of Michigan·JournalNew England Journal of Medicine·DateJun 4, 2014

Feeding increases coral transplant survival

A study published in PLOS ONE found that feeding juvenile corals prior to transplantation significantly improved their survival rates. Coral recruits fed with a higher amount of food grew faster and larger than unfed corals, leading to higher post-transplantation survivorship.

SourcePLOS·JournalPLOS ONE·DateJun 4, 2014

Weight gain following antidepressant use examined

Researchers found that antidepressants with certain properties contribute less to weight gain than others, which could influence treatment preferences for patients at risk of weight gain. The study analyzed data from a large healthcare system and identified differences in weight gain rates among various antidepressant medications.

SourceJAMA Network·JournalJAMA Psychiatry·DateJun 4, 2014

Has solar activity influence on the Earth's global warming?

A recent study reveals significant resonance cycles between solar activity and Earth's surface temperature, providing a possible explanation for recent global warming. The research uses wavelet analysis and cross-correlation methods to investigate the periodicities of solar activity and its correlations with the Earth's temperature dur...

SourceScience China Press·JournalChinese Science Bulletin·DateJun 4, 2014