Astrocyte News and Research

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Astrocytes implicated in preclinical AD

Astrocytes are activated in the brains of people with autosomal dominant Alzheimer’s disease long before symptoms appear and even before amyloidosis begins, a study shows.

12 Feb 2016

Johns Hopkins study shows high doses of cocaine kill brain cells

Working with mice, researchers at Johns Hopkins have contributed significant new evidence to support the idea that high doses of cocaine kill brain cells by triggering overactive autophagy, a process in which cells literally digest their own insides. Their results, moreover, bring with them a possible antidote, an experimental compound dubbed CGP3466B.

19 Jan 2016

YAP protein appears to play vital role in helping control inflammation inside the brain

Inside the brain, a protein called YAP, best known for its ability to help right-size our developing hearts and livers, appears to have the different but equally important task of helping control inflammation.

23 Dec 2015

CTE can be diagnosed by neuropathological examination of brain tissue

For the first time, CTE has been confirmed as a unique disease that can be definitively diagnosed by neuropathological examination of brain tissue. A consensus panel of expert neuropathologists concluded that CTE has a pathognomonic signature in the brain, an advance that represents a milestone for CTE research and lays the foundation for future studies defining the clinical symptoms, genetic risk factors and therapeutic strategies for CTE.

16 Dec 2015

Researchers use mathematical models to study brain cells essential for correct functioning of neurons

Applying mathematical models used for studying the galaxies or interactions between elementary particles, researchers at the Institute of Neuroscience of the Universitat Autònoma de Barcelona, in collaboration with Massachusetts General Hospital, Boston, have analysed the spatial distribution of astrocytes: brain cells that are essential for the correct functioning of neurons.

10 Dec 2015

Scientists show evidence for exchange of lactate between different brain cells

Nerve cells cover their high energy demand with glucose and lactate. Scientists of the University of Zurich now provide new support for this. They show for the first time in the intact mouse brain evidence for an exchange of lactate between different brain cells. With this study they were able to confirm a 20-year old hypothesis.

25 Nov 2015

Discovery may lead to new anti-metastasis therapies for advanced-stage brain cancer patients

It's no surprise that people enjoy warm places like Hawaii but may suffer in hostile locales such as Antarctica. A tumor suppressor gene called PTEN is similar in that it is affected by the microenvironments of certain bodily organs to which it travels.

20 Oct 2015

New findings on amitriptyline drug could help develop antidepressants with novel mechanisms

Researchers in Japan have shown that several different classes of antidepressants increase early growth responses in astrocytes, star-shaped glial cells, which could help develop new treatments.

16 Sep 2015

Endothelin system offers potential therapeutic target for ALS

Amyotrophic lateral sclerosis (ALS) is a disorder in which cells of the nervous system die, leading to muscle weakness that impacts breathing, movement and other physical functions.

4 Sep 2015

Nuclear process in the brain may play critical role in health and disease

Every brain cell has a nucleus, or a central command station. Scientists have shown that the passage of molecules through the nucleus of a star-shaped brain cell, called an astrocyte, may play a critical role in health and disease.

18 Aug 2015

New UBC research reveals alternative route to rein in glioma cancer cells

New UBC research into brain cancer suggests treatments should target the cells around a tumor to stop it from spreading.

13 Aug 2015

EPFL scientists reveal that the brain is not as compact as we thought

Using an innovative method, EPFL scientists show that the brain is not as compact as we have thought all along. To study the fine structure of the brain, including its connections between neurons, the synapses, scientists must use electron microscopes. However, the tissue must first be fixed to prepare it for this high magnification imaging method.

11 Aug 2015

Changes in UCH-L1 and GFAP proteins linked to trauma-related brain damage

Researchers have shown that the levels of two proteins present in blood and cerebrospinal fluid increase significantly at different time points following traumatic brain injury (TBI), confirming their potential value as biomarkers of trauma-related brain damage.

25 Jul 2015

Hiroshima University researchers reveal molecular mechanisms involved in neuropathic pain

A research group from Hiroshima University demonstrated that the downregulation of spinal astrocyte connexin43 (Cx43) expression causes sustained neuropathic pain following peripheral nerve injury. Controlling the Cx43 expression using pharmacological approaches or gene therapy might serve as novel therapeutic strategies ameliorate neurological disorders in general and neuropathic pain in particular.

14 Jul 2015

Mild head injury patients having lower serum S100B levels unlikely to have intracranial hemorrhage

Researchers conducted a prospective observational study in elderly patients and adult patients receiving antiplatelet therapy who presented with mild head injury at two trauma hospitals in Vienna: the Trauma Hospital Meidling and the Donauspital.

7 Jul 2015

Detroit-area patients contribute to national study that redefines diagnosis, treatment of glioma

Sixty-seven patients from the Hermelin Brain Tumor Center at Henry Ford Hospital and their families made important contributions to a national cancer study that proposes a change in how some brain tumors are classified - and ultimately treated.

25 Jun 2015

Researchers develop new implantable drug-delivery system using nanowire

A team of researchers has created a new implantable drug-delivery system using nanowires that can be wirelessly controlled.

24 Jun 2015

Scientists create new model to study latent HIV infection in brain cells

Over 35 million people worldwide are currently infected by HIV. Antiviral therapies can keep the virus from multiplying. However, no drug can cure infection so far, because various cell types continue to carry the virus in a latent, i.e. quiescent, state. Scientists of Helmholtz Zentrum München have now established a model for latent HIV infection of brain cells.

18 Jun 2015

Star-shaped brain cells control cerebral blood flow and blood pressure

A star-shaped brain cell called an astrocyte appears to help keep blood pressure and blood flow inside the brain on a healthy, even keel, scientists report.

10 Jun 2015

New study suggests that IDH1 gene may be prognostic marker for anaplastic astrocytoma

New findings suggest that a gene called IDH1 might be prognostic marker for a rare form of brain cancer. Patients in this study who had a mutated IDH gene lived an average of 7.9 years after diagnosis versus 2.8 years for patients with unaltered IDH.

4 Jun 2015