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New MRI scans accurately measure damage to blood-brain barrier in stroke victims

Johns Hopkins researchers have developed a new way of looking at standard MRI scans that more accurately measures damage to the blood-brain barrier in stroke victims, a process they hope will lead to safer, more individualized treatment of blood clots in the brain and better outcomes.

21 Dec 2012

Researchers reveal genetic basis for fundamental differences between humans and other vertebrates

University of Toronto Faculty of Medicine researchers have uncovered a genetic basis for fundamental differences between humans and other vertebrates that could also help explain why humans are susceptible to diseases not found in other species.

21 Dec 2012

Androgen deprivation therapies may have adverse effects in men with precancers

The use of androgen deprivation therapies to prevent precancerous prostate abnormalities developing into aggressive prostate cancer may have adverse effects in men with precancers with specific genetic alterations, according to data from a preclinical study recently published in Cancer Discovery, a journal of the American Association for Cancer Research.

21 Dec 2012

Oscillation of gene activity may underlie how embryos grow in proportion

From a single-cell egg to a fully functional body: as embryos develop and grow, they must form organs that are in proportion to the overall size of the embryo. The exact mechanism underlying this fundamental characteristic, called scaling, is still unclear. However, a team of researchers from EMBL Heidelberg is now one step closer to understanding it.

21 Dec 2012

NFKB gene variations could play a key role in helping to determine survival rate of sepsis patients

A study in the January 2013 issue of Anesthesiology offers evidence that variations in what is called the NFKB gene could play an important role in helping to determine the survival rate of patients who acquire sepsis, a condition in which the body is overwhelmed by infection, and which is the leading cause of death in hospitals.

21 Dec 2012

Study examines role of race and ethnicity in stem cell donation

New research examining the role of race and ethnicity in an individual's decision to become a donor for hematopoietic cell transplantation (HCT) identifies several factors associated with varied participation rates in national donor registries across racial/ethnic groups. Results of this first-of-its-kind study are published online today in Blood, the Journal of the American Society of Hematology (ASH).

21 Dec 2012

Melanoma patients may benefit from microRNA-26a replacement therapy

A University of Colorado Cancer Center study in this month's edition of the Journal of Investigative Dermatology describes a new target and potential treatment for melanoma, the most dangerous form of skin cancer. MicroRNA can decide which genes in a cell's DNA are expressed and which stay silent. Melanoma tends to lack microRNA-26a, which makes the gene SODD go silent.

21 Dec 2012

MiR-15 contributes to the heart's ability to regenerate following injury

UT Southwestern Medical Center researchers have pinpointed a molecular mechanism needed to unleash the heart's ability to regenerate, a critical step toward developing eventual therapies for damage suffered following a heart attack.

21 Dec 2012

Scientists design small molecules that recognize myotonic dystrophy-associated RNAs

Scientists from the Florida campus of The Scripps Research Institute (TSRI) have developed a new approach to alter the function of RNA in living cells by designing molecules that recognize and disable RNA targets. As a proof of principle, in the new study the team designed a molecule that disabled the RNA causing myotonic dystrophy.

21 Dec 2012

Targeting PCS may help improve health of patients with chronic kidney disease

Insulin resistance, or prediabetes, in individuals with kidney disease may be caused by the progressive retention of certain compounds that are normally excreted by the kidneys in healthy individuals, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology (JASN).

21 Dec 2012

Thickening of arterial walls causes branch retinal vein occlusion

Branch retinal vein occlusion - blockage of the blood vessels that channel blood from the retina - is a common eye disease. A type of blood clot in the eye, the disease causes reduced vision, and people with the disease also typically have an increased risk of hypertension, diabetes and other serious conditions. A young scientist from the University of Copenhagen has made a significant contribution to finding the cause of the disease.

21 Dec 2012

Study provides clear understanding of how the brain organizes visual input

Our eyes may be our window to the world, but how do we make sense of the thousands of images that flood our retinas each day? Scientists at the University of California, Berkeley, have found that the brain is wired to put in order all the categories of objects and actions that we see. They have created the first interactive map of how the brain organizes these groupings.

21 Dec 2012

Researchers develop game-changing diagnostic and prognostic genetic tests for prostate cancer

Researchers at the Kimmel Cancer Center at Jefferson (KCC) have developed potentially game-changing diagnostic and prognostic genetic tests shown to better predict prostate cancer survival outcomes and distinguish clinically-relevant cancers.

21 Dec 2012

New work on Akt's role in cancer stem cell biology

The protein kinase Akt is a key regulator of cell growth, proliferation, metabolism, survival, and death. New work on Akt's role in cancer stem cell biology from the lab of senior author Honglin Zhou, MD, PhD and Weihua Li, co-first author, both from the Center for Resuscitation Sciences, Department of Emergency Medicine, Perelman School of Medicine, University of Pennsylvania, and Xiaowei Xu, Department of Pathology and Laboratory Medicine, appears in Molecular Cell.

21 Dec 2012

Study examines five varieties of cells after transplantation in the CNS

When different types of cells are transplanted with the intent of having them aid in repairing central nervous system (CNS) trauma, what is the fate and function of those cells? A Belgian research team carried out research aimed at answering this question by determining how five varieties of cells - neural stem cells, mouse embryonic fibroblasts, dendritic cells, bone marrow mononuclear cells (BMMNCs) and splenocytes - functioned and survived after transplantation in the CNS.

21 Dec 2012

Ebselen effectively inhibits thioredoxin reductase system in H. pylori, M. tuberculosis

A drug currently being used to treat ischemic strokes may prove to be a significant advance in the treatment of tuberculosis and ulcers. In a new research report appearing online in The FASEB Journal, a compound called ebselen effectively inhibits the thioredoxin reductase system in a wide variety of bacteria, including Helicobacter pylori which causes gastric ulcers and Mycobacterium tuberculosis which causes tuberculosis.

21 Dec 2012

Dragonfly capable of higher-level thought processes when hunting its prey

In a discovery that may prove important for cognitive science, our understanding of nature and applications for robot vision, researchers at the University of Adelaide have found evidence that the dragonfly is capable of higher-level thought processes when hunting its prey.

20 Dec 2012

Two recent experimental treatments improve visual function in mouse models of retinitis pigmentosa

Two recent experimental treatments - one involving skin-derived induced pluripotent stem (iPS) cell grafts, the other gene therapy - have been shown to produce long-term improvement in visual function in mouse models of retinitis pigmentosa (RP), according to the Columbia University Medical Center (CUMC) scientists who led the studies. At present, there is no cure for RP, the most common form of inherited blindness.

20 Dec 2012

Study identifies mechanisms responsible for regenerating blood vessels in the brain

New research from the University of Georgia identifies the mechanisms responsible for regenerating blood vessels in the brain.

20 Dec 2012

Study finds new signaling pathway involved in development of chronic inflammation of brain cells

The number of Alzheimer's patients will continue to dramatically increase in the next several decades. Various teams of researchers worldwide are feverishly investigating precisely how the illness develops. A

20 Dec 2012

Medical Science News

New MRI scans accurately measure damage to blood-brain barrier in stroke victims

Researchers reveal genetic basis for fundamental differences between humans and other vertebrates

Androgen deprivation therapies may have adverse effects in men with precancers

Oscillation of gene activity may underlie how embryos grow in proportion

NFKB gene variations could play a key role in helping to determine survival rate of sepsis patients

Study examines role of race and ethnicity in stem cell donation

Melanoma patients may benefit from microRNA-26a replacement therapy

MiR-15 contributes to the heart's ability to regenerate following injury

Scientists design small molecules that recognize myotonic dystrophy-associated RNAs

Targeting PCS may help improve health of patients with chronic kidney disease

Thickening of arterial walls causes branch retinal vein occlusion

Study provides clear understanding of how the brain organizes visual input

Researchers develop game-changing diagnostic and prognostic genetic tests for prostate cancer

New work on Akt's role in cancer stem cell biology

Study examines five varieties of cells after transplantation in the CNS

Ebselen effectively inhibits thioredoxin reductase system in H. pylori, M. tuberculosis

Dragonfly capable of higher-level thought processes when hunting its prey

Two recent experimental treatments improve visual function in mouse models of retinitis pigmentosa

Study identifies mechanisms responsible for regenerating blood vessels in the brain

Study finds new signaling pathway involved in development of chronic inflammation of brain cells

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