About Brain Injuries

Subscribe to About Brain Injuries

Females experience concussions differently than males but there has been little research on the topic. Dr. Mayumi Prins, a professor of neurosurgery at the David Geffen School of Medicine at UCLA and director of the UCLA Brain Injury Research Center education program, is looking to change that. He notes that most research has focused on male concussion patients and therefore there is little information available as to the science as to why females may suffer more concussions and experience more prolonged symptoms.

Scientific research has shown that female and male brains differ in terms of activity patterns, anatomy, chemistry, and physiology. Concussions may affect females differently than males for a variety of reasons, including hormonal issues and differences in upper bodies – especially the way muscles in the neck react after collisions. Also, females may be more likely than males to disclose concussion-related symptoms such as headaches, diminished social interaction, and depression, according to Prins.

…
Continue Reading

When an individual suffers from a brain injury, the resulting cognitive, physical, social, and psychological effects often create challenges for that person. Other family members may also be affected, including spouses and children. A recent study investigated the emotional and behavioral impact on children when a parent has a severe acquired brain injury (ABI). ABI can result from trauma, illness, infection, brain tumors, or other conditions.

The study involved 25 couples that included one spouse who was affected by ABI, and their 35 children, ages three to 14 years. The children attended three sessions with a psychologist to identify their spontaneous playing and relational behavior through a grid created on the basis of ICD-10 criteria.

…
Continue Reading

Chronic traumatic encephalopathy (CTE) was found in 110 of 111 (99 percent) brains of deceased former National Football League players that were donated to scientific research, according to a study published in the medical journal JAMA. CTE, a neurodegenerative brain disease, was also neuropathologically diagnosed in 177 of the 202 players studied across all levels of play (87 percent). It was found in three of the 14 high school players and 48 of the 53 college players.

CTE is typically found in individuals who have been exposed to repeated head trauma, including veterans and football players. CTE can only be diagnosed with an autopsy. The JAMA study focused on football as the primary exposure to head trauma, whether or not the individual had exhibited symptoms while living. The study acknowledged the lack of a comparison group without which the study cannot offer an estimate on the overall risk of brain injury due to participation in football.

…
Continue Reading

Four Kessler Foundation researchers were awarded two-year grants to fund studies of functional and cognitive deficits in individuals who have experienced traumatic brain injury (TBI). The grants, totaling $713,000, were awarded by the New Jersey Commission on Brain Injury Research (NJCBIR).

Researchers will study functional and cognitive deficits in individuals with moderate to severe traumatic brain injury (TBI), including learning and memory, and limb mobility.

One grant, valued at $179,000, will fund a two-phase trial testing the “modified Story Memory Technique (mSMT)” in school-aged children. The mSMT trial will compare healthy controls with children who have cognitive deficits caused by TBI. The grant awardee, Dr. Nancy Chiaravalloti, previously conducted a study involving multiple sclerosis and mSMT which found that mSMT is effective for improving learning and memory in MS patients. Dr. Chiaravalloti is the  director of neuropsychology, neuroscience and TBI research at Kessler Foundation, and director of the Northern New Jersey TBI Model System.

…
Continue Reading

A recent review examined clinical and experimental literature for information on the long-term cognitive impact of traumatic brain injury (TBI) in the context of cognitive aging.

Neurobiological changes take place as part of the normal aging process. The issue evaluated through the literature is whether those individuals who experience cognitive problems as a result of TBI are at risk of accelerated and premature aging, and dementia.

…
Continue Reading

Much of the recent research concerning mild traumatic brain injury (mTBI) has focused on professional athletes and military veterans. This research may not apply to individuals with mTBI whose injuries result from other causes, including motor vehicle collisions and falls.

Autopsies of individuals with these types of injuries indicate that mTBI causes diffuse axonal injury and micro hemorrhages. Until recently, however, it was not possible to examine microstructural pathology in living persons because of the insufficient sensitivity of computed tomography and conventional magnetic resonance imaging (MRI). Thus, researchers were not able to explore any relationship between mTBI-related structural neuropathology and mTBI-related dysfunction, specifically cognitive impairment.

…
Continue Reading

Traumatic brain injury (TBI) occurs when an external force, usually a blow or jolt to the head, disrupts the normal functions of the brain. Even a mild TBI or concussion can cause cognitive, emotional, behavioral, and physical impairments.

Often, changes in sleep patterns occur after a concussion. In fact, 30 to 70 percent of patients who have experienced a TBI experience sleep problems. The seriousness of the brain injury is not a predictor of the severity of sleep-related symptoms. Such symptoms include insomnia, increased sleep need, and excessive daytime sleepiness. For some TBI patients, although they are sleeping more than usual each night, they still experience excessive daytime sleepiness. Other sleep disorders, such as sleep-related breathing disorder, post-traumatic hypersomnia, and movement disorders may also result from a TBI. Repetitive TBIs may increase the risk of symptoms.

…
Continue Reading

Researchers at Ohio State University (OSU) examined the effects of concussions on “sub-cellular levels,” possibly pointing the way for new treatments to be developed for concussions.

According to Science Daily, the OSU researchers discovered that blows to the head cause numerous small swellings along the length of neuronal axons. The study, published in The Journal of Cell Biology, observes the swelling process in live cultured neurons and could lead to new ways of limiting the symptoms associated with concussive brain injuries.

The researchers induced “mild traumatic brain injury” (mTBI) on rodents and found that part of a nerve cell swells within a matter of seconds, much faster than previously believed. The injury activated a protein that caused a chain reaction. Suppressing the protein prevented swelling. Such a finding is highly relevant to mild traumatic brain injury (mTBI), or concussion as it is more commonly known, researcher Chen Gu reports.

…
Continue Reading

According to a recent study, children who sustained concussions or traumatic brain injuries (TBI) may experience anxiety, phobias, and depression years later.

Lead author Michelle Albicini, a researcher at Monash University School of Psychological Sciences in Melbourne, Australia, says that the study suggests that brain injury is related to long-term anxiety symptoms. The anxiety may be caused by actual brain damage or the result of living in an anxious family environment after the injury, said Albicini.

Albicini’s team found that children with moderately severe brain injuries and females in general were at greater risk for long-term psychological effects compared with males and those children who sustained milder brain injuries.

…
Continue Reading

When brain injuries stimulate the infiltration of immune cells, it may cause inflammation and tissue damage in the brain and impair patient recovery. Thus, the brain’s recruiting of immune system cells to the brain may cause more harm than good. Johns Hopkins researchers report that they have identified how brain cells trigger a response in immune cells when the brain is injured.

As described in Science Signaling, in a new study using mice, researchers described how after a brain injury, immune cells in the brain called astrocytes released vesicles (fat-like virus-size molecules) carrying proteins, RNAs, and microRNAs into the circulation. When these vesicles reached the liver, they stimulated the secretion of cytokines that mobilized peripheral immune cells to infiltrate the brain. Researchers examined what the signal was, and how, exactly, the signal got all the way to the liver from the brain, particularly considering the blood-brain barrier.

…
Continue Reading