Corticosterone News and Research

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Corticosterone is a 21 carbon steroid hormone of the corticosteroid type produced in the cortex of the adrenal glands.

New tissue-culture study: Fungicide can induce insulin resistance

A fungicide used on farm crops can induce insulin resistance, a new tissue-culture study finds, providing another piece of evidence linking environmental pollutants to diabetes. The results will be presented Saturday at The Endocrine Society's 94th Annual Meeting in Houston.

26 Jun 2012

Oxygen deprivation disrupts insulin and glucose regulation in rat pups

Premature infants' immature lungs and frequent dips in blood pressure make them especially vulnerable to a condition called hypoxia in which their tissues don't receive enough oxygen, sometimes leading to permanent brain damage. New animal research suggests that a common practice in caring for these babies might in fact exacerbate this condition, increasing the chances for long-term neurological deficits.

14 Feb 2012

Cultured ES cells can self-organize into three-dimensional tissue-like structures

The possibility that functional, three-dimensional tissues and organs may be derived from pluripotent cells, such as embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), represents one of the grand challenges of stem cell research, but is also one of the fundamental goals of the emerging field of regenerative medicine.

14 Nov 2011

Good digestive health may help regulate and reduce stress in the brain

Good digestive health may help to regulate and reduce stress in the brain, according to a recent study out of University College Cork in Cork, Ireland and featured in the October issue of Food Nutrition & Science.

31 Oct 2011

Reducing levels of protein FKBP51 may yield new antidepressant therapies

Decreasing expression of a protein associated with susceptibility to depression made old mice resistant to depressive-like behavior while improving their hormonal response to stress, a study led by researchers at the University of South Florida found. The lack of this protein, FKBP51, did not adversely affect their memory, learning, or basic motor functions.

17 Sep 2011

Chronic jet lag alters brain's intricate role in memory processing

Chronic jet lag alters the brain in ways that cause memory and learning problems long after one's return to a regular 24-hour schedule, according to research by University of California, Berkeley, psychologists.

25 Nov 2010

Teenage binge drinking could cause mental health problems in adulthood: Study

Binge-drinking teenagers may be putting themselves at higher risk in adulthood for mood disorders such as anxiety and depression, Loyola University Health System researchers report.

16 Nov 2010

Persistent exposure to light at night leads to weight gain

Persistent exposure to light at night may lead to weight gain, even without changing physical activity or eating more food, according to new research in mice.

12 Oct 2010

Release of cortisol with fixed regularity can help cope with stress better

If your body releases cortisol with fixed regularity then you can cope with stress better, says NWO-funded researcher Angela Sarabdjitsingh. She investigated the rhythm of corticosterone production in rats. This rat hormone is comparable to the human stress hormone cortisol. Rats deal considerably less well with stress if the pattern of corticosterone release changes. An irregular release pattern is a characteristic of chronic stress and stress-related diseases. It might therefore be possible to treat these by restoring the rhythm.

31 Aug 2010

Social interaction reduces physical damage to brain by heart attack: Research

A new study in mice shows how social support can help minimize some of the worst physical damages to the brain caused by a heart attack.

31 Aug 2010

New hope for patients with drug-resistant depression

New research shows that a unique strain of laboratory mice characterized at Penn State University has behavioral, hormonal, and neurochemical characteristics that are similar to those of human patients with drug-resistant forms of depression.

30 Jun 2010

Abusive attachments during infancy have negative consequences in social behavior development

In a new Biological Psychiatry article, Dr. Regina Sullivan and colleagues have dissected the behavior of mother rats and their infant pups, modeling nurturing by stroking and abuse with electric shock. In this animal model of infant abuse, they took into consideration the unique infant neurobehavioral learning attachment system that ensures infant rats' attachment to their caregiver regardless of the quality of care received.

23 Jun 2010

Research study on breast cancer susceptibility in rats

Social isolation and stress appear to increase susceptibility to breast cancer in rats, a US study has suggested.

9 Dec 2009

Social isolation and stress may increase susceptibility to breast cancer, finds US study

Scientists at the University of Chicago found that rats which were prone to developing breast tumours were 3.3 times more likely to develop cancer if they were kept in isolation and suffered related stress.

9 Dec 2009

Social isolation and stress can raise breast cancer risk

Social isolation and related stress could contribute to human breast cancer susceptibility, research from a rat model designed at the University of Chicago to identify environmental mechanisms contributing to cancer risk shows.

8 Dec 2009

Changes in dopamine levels linked to infant learning patterns

When do you first leave the nest? Early in development infants of many species experience important transitions-such as learning when to leave the protective presence of their mother to start exploring the wider world. Neuroscientists have now pinpointed molecular events occurring in the brain during that turning point.

27 Oct 2009

Constant light at night can increase depressive symptoms

Researchers found that mice housed in a lighted room 24 hours a day exhibited more depressive symptoms than did similar mice that had a normal light-dark cycle.

22 Oct 2009

Social environment plays vital role in breast cancer

Social environment can play an important role in the biology of disease, including breast cancer, and lead to significant differences in health outcome, according to results of a study published in Cancer Prevention Research, a journal of the American Association for Cancer Research.

1 Oct 2009

Steroid hormones found to affect gene activity

Intermittent signaling by steroid hormones can affect the way genes are expressed in rodents, according to research by scientists at the University of Bristol and the National Cancer Institute (NCI), USA. This work has major implications for understanding how steroids work and opens novel avenues for new therapies.

19 Aug 2009

Acute stress improves working memory

Day after day of chronic stress will wear a person down physically and mentally. But new research suggests that the acute stress produced by a brief run-in with a stressful scenario acts on a key brain region controlling emotion and cognition, temporarily improving learning and memory.

28 Jul 2009