Navigation Links
How Brain Injury Leads to Seizures, Memory Problems

In a finding that may provide a scientific basis for eventual treatment, neurology researchers have shown that traumatic brain injury reduces the level of a protein that// helps keep brain activity in balance. The resulting abnormal activity, in turn, is thought to be an underlying reason for seizures and memory defects experienced by people who have suffered a traumatic brain injury (TBI).

“A traumatic brain injury occurs to someone in the United States every 23 seconds,” said study team leader Akiva S. Cohen, Ph.D., of The Children’s Hospital of Philadelphia, adding that, “TBI is the leading cause of death among children and young adults in this country. There are no cures known for traumatic brain injury. Our hope is that our research may contribute to potential therapies for TBI patients.”

Transportation accidents such as car crashes are responsible for the majority of TBIs in people under age 75. According to the National Institutes of Health, over 5 million Americans currently have permanent disabilities resulting from TBIs.

Using mice, the researchers showed for the first time that TBI reduces the levels of a protein called potassium-chloride co-transporter 2 (KCC2) within a portion of the brain called the dentate gyrus. The dentate gyrus controls overactivity from reaching seizure-prone brain cells further along the circuit.

The dentate gyrus is a gatekeeper in maintaining a balance between two systems of neurotransmitters in the brain: the glutamate system and the gamma-aminobutyric acid system, abbreviated GABA(A). Glutamate stimulates neurons to fire, while GABA(A) inhibits that activity. “When lower levels of the KCC2 transporter weaken the dentate gyrus’s ability to act as a gatekeeper,” said Dr. Cohen, “neurons become more excitable, and seizures can occur.”

In addition to its role in inhibiting seizures, the dentate gyrus is also believed to be important in memory formation. Therefore, said Dr. Cohen, “Interfering with normal function in the dentate gyrus may impair memory formation—especially antegrade memory, the ability to learn new things.” Epileptic seizures and impaired memory are two of the disabilities caused by TBI.

Further animal studies, said Dr. Cohen, will investigate whether supplying KCC2 directly to the dentate gyrus will restore normal functioning in that structure, and whether it may improve symptoms in brain-injured mice. If this proves to be the case, the protein may someday be used as a medical treatment for patients with TBI.

The National Institute of Neurological Disorders and Stroke, part of the National Institutes of Health, supported this study. Dr. Cohen’s co-authors were David P. Bonislawski and Elizabeth P. Schwarzbach. All three are from the University of Pennsylvania School of Medicine.

Source-Neswise
SRM
'"/>




Related medicine news :

1. Use of Cellular Phones associated with Increased risk of Brain Tumors
2. Brain death – How to cope with it
3. “Brain fingerprinting”- The new lie detectr
4. Nasal Spray Could Take Drugs Direct to Brain.
5. Virus Combats Brain Tumour
6. Nasal Spray Could Take Drugs Directly to Brain
7. Control of anger disorder connected to Brain Dysfunction
8. High Levels of Protein Linked to Brain Shrinkage
9. Brain damage affects artistic skill
10. Brain cells protected by new compounds
11. Brain changes observed in people with sleep apnoea
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/24/2017)... ... March 24, 2017 , ... Shamanic healer ... for Shamanic Healing and Spiritual Awakening, proudly presents her Sacred Peru retreat ... This sacred and spiritual journey during the Summer Solstice will also be her ...
(Date:3/24/2017)... CA (PRWEB) , ... March 24, 2017 , ... ... on two panels at the Advanced ERISA Benefit Claims Litigation seminar in Chicago, ... Creating the Administrative Record, The majority of cases litigated under ERISA involve claims ...
(Date:3/24/2017)... ... March 24, 2017 , ... Empower ... upgrading their training and leads programs. , In February, 2017, Empower Brokerage introduced ... agents, Performance Partners is designed to teach how to maximize their sales efforts, ...
(Date:3/24/2017)... ... March 24, 2017 , ... “Vintage and Harvest A Cultivation of Christian Love” ... teacher residing in North Carolina with his wife, Anna Marie. He and his wife ... grandchildren. David is also the author of “Shadow and Substance.” , “Love, the agape ...
(Date:3/23/2017)... (PRWEB) , ... March 23, 2017 , ... A recent ... for entry into teacher preparation programs. The NCTQ report suggests, based on a review ... requirements would significantly improve teacher quality in the U.S. It argues that this higher ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... GENEVA , March 24, 2017 /PRNewswire/ ... Day revitalizes efforts to develop sutezolid as effective response ... Tuberculosis Day, TB Alliance and the Medicines Patent Pool ... of sutezolid, an antibiotic drug candidate which demonstrated encouraging ... development of sutezolid in combination with other TB drugs ...
(Date:3/23/2017)... 2017 Research and Markets has announced the ... Procedure, Replacement Procedure By Technique, Repair Procedure By Technique, By Region, ... ... is forecasted to grow at a CAGR of 13.35% during 2016-2021 ... by rising aging population, growth in population with heart disease and ...
(Date:3/23/2017)... , March 23, 2017  The U.S. Food ... (avelumab) for the treatment of adults and pediatric patients ... (MCC), including those who have not received prior chemotherapy. ... a rare, aggressive form of skin cancer. ... cancers, patients with a rare form called Merkel cell ...
Breaking Medicine Technology: