Curated News: Neurology (journal)

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Research could lead to potential new ways to prevent strokes in young adults.

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Newly compiled data evaluated by researchers in the Department of Neurology and the Smidt Heart Institute at Cedars-Sinai shows that COVID-19 vaccines do not raise stroke risk--but that severe COVID-19 infection does. Physician-scientists hope this growing body of evidence, highlighted today in an editorial in the peer-reviewed journal Neurology, will ease the minds of individuals still hesitant to be vaccinated.

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Researchers have known people who live farther from the equator are more likely to develop multiple sclerosis (MS) and have often attributed that to vitamin D exposure. But countries farther from the equator are also more likely to be wealthier than countries nearer to the equator. A new analysis shows that the amount a country spends on health care may help explain the link between MS and latitude. This new research is published in the August 24, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Pregnant women with epilepsy have more symptoms of depression and anxiety during pregnancy and postpartum than pregnant women who do not have epilepsy or women with epilepsy who are not pregnant, according to a study published in the August 17, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Leisure activities, such as reading a book, doing yoga and spending time with family and friends, may help lower the risk of dementia, according to a new meta-analysis published in the August 10, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Quality of life is a measure of a person’s level of comfort, health and happiness. For people with multiple sclerosis (MS), a new study has found there are specific factors that may affect a person’s physical and mental quality of life. The study is published in the August 10, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Why do some people with amyloid plaques in their brains associated with Alzheimer’s disease show no signs of the disease, while others with the same amount of plaque have clear memory and thinking problems? Researchers looked at genetic and life course factors that may help create a “cognitive reserve” that provides a buffer against the disease in a study published in the August 3, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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People who eat the highest amounts of ultra-processed foods like soft drinks, chips and cookies may have a higher risk of developing dementia than those who eat the lowest amounts, according to a new study published in the July 27, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Researchers also found that replacing ultra-processed foods in a person’s diet with unprocessed or minimally processed foods was associated with a lower risk. The study does not prove that ultra-processed foods cause dementia. It only shows an association.

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Physical and mental activities, such as household chores, exercise, and visiting with family and friends, may help lower the risk of dementia, according to a new study published in the July 27, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. The study looked at the effects of these activities, as well as mental activities and use of electronic devices in people both with and without higher genetic risk for dementia.

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Studies have shown that physical and mental activity help preserve thinking skills and delay dementia. A new study suggests that these benefits may vary for men and women. The study is published in the July 20, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Young stroke patients who have a seizure following their diagnosis are at greater risk of developing dementia than patients who don’t experience seizures, according to a College of Medicine study.

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While depression is a common problem for people who have had a stroke, some people may have symptoms of depression years before their stroke, according to a study published in the July 13, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Researchers found that, in people who developed a stroke, symptoms of depression preceded the onset of stroke and further worsened after the stroke.

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People who have non-alcoholic fatty liver disease, a buildup of fat cells in the liver, may have a higher risk of dementia, according to a new study published in the July 13, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Researchers also found that people with this form of liver disease who also have heart disease or who have had a stroke may have an even higher risk of dementia.

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Older people with hypothyroidism, also called underactive thyroid, may be at increased risk of developing dementia, according to a study published in the July 6, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. The risk of developing dementia was even higher for people whose thyroid condition required thyroid hormone replacement medication.

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Women who have gone through menopause may have more of a brain biomarker called white matter hyperintensities than premenopausal women or men of the same age, according to a new study published in the June 29, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Acupuncture may reduce headaches for people who have chronic tension-type headaches, according to a study published in the June 22, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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The cost of brand-name drugs for epilepsy increased by 277% from 2010 to 2018, according to a study published in the June 15, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. The cost of generic drugs for epilepsy decreased by 42% over the same period.

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Shingles, a viral infection caused by the reactivation of the chickenpox virus, results in a painful blistering rash along one side of the body or face from nerve inflammation. There has been scientific speculation that such inflammation may increase a person’s risk of dementia. However, a new study has found that shingles is not associated with an increased risk of dementia. The study is published in the June 8, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Social isolation is linked to lower brain volume in areas related to cognition and a higher risk of dementia, according to research published in the June 8, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. The study found that social isolation was linked to a 26% increased risk of dementia, separately from risk factors like depression and loneliness.

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Black and Hispanic people are more likely to die in the first month after certain types of stroke than white people, according to a study published in the June 1, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Living in areas with higher air pollution is associated with an increased risk of in-hospital death from stroke, and the risk varies depending on the size of the air pollution particles, according to a new study published in the May 25, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Seven healthy habits and lifestyle factors may play a role in lowering the risk of dementia in people with the highest genetic risk, according to research published in the May 25, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Which vascular risk factors are associated with the risk of developing dementia may vary with age. A new study shows that among people around age 55, the risk of developing dementia over the next 10 years was increased in those with diabetes and high blood pressure. For people around 65 years old, the risk was higher in those with heart disease, and for those in their 70s, diabetes and stroke. For 80-year-olds, the risk of developing dementia was increased in those with diabetes and a history of stroke, while taking blood pressure medications decreased the risk. The study is published in the May 18, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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A new study suggests that antidepressant use by mothers during the first trimester of pregnancy does not increase the chances of epilepsy and seizures in babies. The research is published in the May 11, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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People who have been hospitalized for a major traumatic brain injury (TBI) may have a higher risk of developing dementia when compared to people who do not have a TBI, according to a new study published in the May 11, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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People with higher levels of antioxidants in their blood may be less likely to develop dementia, according to a study published in the May 4, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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The rate of multiple sclerosis (MS) cases varies greatly by race and ethnicity. A new study suggests that the prevalence of MS in Black and white people is similarly high, while much lower in Hispanic and Asian people. The research is published in the April 27, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Women with multiple sclerosis (MS) are less likely to have breast cancers detected through cancer screenings than women without MS, according to new research published in the April 27, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Conversely, researchers also found that people with MS are more likely to have colorectal cancers detected at an early stage than those without MS.

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Three of four blood tests used to identify people in early stages of Alzheimer’s disease perform differently in Black individuals compared to white individuals, according to a new study from Washington University School of Medicine in St. Louis. Such differences may put Black patients at risk of misdiagnosis.

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Cardiovascular disease risk factors, like high blood pressure, diabetes, obesity and smoking, are believed to play key roles in the likelihood of developing cognitive decline, dementia, and Alzheimer’s disease. A new study suggests that people who accumulate these risk factors over time, at a faster pace, have an increased risk of developing Alzheimer’s disease dementia or vascular dementia, compared to people whose risk factors remain stable throughout life. The research is published in the April 20, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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The estimated cost of multiple sclerosis (MS) reached $85.4 billion in 2019 in the United States, according to a new report published in the April 13, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. In addition, when researchers compared people with MS to people without MS they found that excess medical costs represent 74% of the overall economic burden of MS. The excess medical cost per person was $65,612 that year.

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Studies have shown that exercise helps protect brain cells. A new study looking at the mechanisms involved in this relationship suggests that the role exercise plays in maintaining insulin and body mass index levels may help protect brain volume and thus help stave off dementia. The research is published in the April 13, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Older adults who take statin drugs for cholesterol may have a reduced risk of developing parkinsonism, a neurological condition that causes movement issues such as tremor, according to a recent study by researchers at Rush University Medical Center.

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A new study suggests that people with epilepsy associated with head injuries, especially the type not well controlled by medication, are more likely to have other health conditions like depression, post-traumatic stress disorder (PTSD), back pain and headache that may result in them reporting a lower quality of life. The research is published in the April 6, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Other conditions included chronic conditions like high blood pressure, sleep disorders, and behavioral health conditions like anxiety.

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The high rate of diabetes and high blood pressure combined in Puerto Rican people may be linked to structural changes in the brain, according to a study published in the March 30, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Parkinsonism is a term for a group of neurological conditions that cause movement problems including tremors, slowed movement and stiffness, with Parkinson’s disease being one of the better knowns causes. A new study suggests that older people taking statin drugs have a lower chance of developing parkinsonism later compared to people who were not taking statins. The research is published in the March 23, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Statins are drugs used to lower cholesterol in the blood and protect against atherosclerosis, a buildup of plaque in the arteries that can lead to hardening of the arteries, heart attack and stroke.

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The use of medications and exercise is more beneficial in preventing a second stroke in people with intracranial atherosclerosis than placing a stent in the blood vessel, according to a new practice advisory issued by the American Academy of Neurology (AAN). The practice advisory is published in the March 21, 2022, online issue of Neurology®, the medical journal of the AAN, and is endorsed by the American Heart Association/American Stroke Association, Neurocritical Care Society and Society of Vascular and Interventional Neurology.

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Stroke can have many causes. An atherothrombotic stroke is caused by a clot that forms from plaques that build up within blood vessels in the brain. A new study suggests that people who have this type of stroke who also have higher levels of triglycerides, a type of fat, in their blood may have a higher risk of having another stroke or other cardiovascular problems one year later, compared to people who had a stroke but have lower triglyceride levels. The research is published in the March 16, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. The study found an association even when people were taking statin drugs meant to lower triglycerides and protect against heart attack and stroke.

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Patients hospitalized with COVID-19 frequently experience altered brain function, and those with mild COVID who never required hospitalization often develop neurologic symptoms as part of long COVID. A new study by Northwestern Medicine and published online on March 7, 2022, in Neurology® Neuroimmunology & Neuroinflammation, an official journal of the American Academy of Neurology, sought to find evidence of central nervous system injury in both groups of patients by looking at biomarkers of inflammation in the brain, and damage to nerve cells which are present in the blood, to help determine whether these tests might inform how best to identify and treat patients.

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People who have certain types of cancers may have an increased risk of having new onset Guillain-Barré syndrome, according to a study published in the March 2, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Researchers found an increased risk in people who had lymphomas and blood cancers, as well as in those who had lung, prostate or breast cancers. The study does not prove that cancer causes Guillain-Barré syndrome. It only shows an association.

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Among people with no memory or thinking problems, having a poor score on a simple memory test may be linked to biomarkers in the brain associated with Alzheimer’s disease as well as very early signs of memory impairment that precede dementia by several years, according to a study published in the February 23, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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To help neurologists, patients and their families understand the current evidence on the use of aducanumab to treat Alzheimer’s disease, the American Academy of Neurology (AAN) has issued an evidence-in-focus article, published in the February 23, 2022, online issue of Neurology®, the medical journal of the AAN. The article also includes a discussion of the safety, costs, administration, and quality-of-life issues related to aducanumab to provide people with a more detailed understanding of the new treatment.

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A blood test developed at Washington University School of Medicine in St. Louis has proven highly accurate in detecting early signs of Alzheimer’s disease in a study involving nearly 500 patients from across three continents, providing further evidence that the test should be considered for routine screening and diagnosis. The study is available in the journal Neurology.

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There has been debate over the best treatment for a certain type of stroke caused by a blockage of a large artery in the brain. A new meta-analysis finds that people who have this kind of stroke who can be treated within four-and-a-half hours after their symptoms start may do better after their stroke when treated with both a clot-busting drug and physical clot removal, compared to physical removal only. The research is published in the February 16, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. Combining the two therapies, called bridging therapy, was linked to better chances of a person surviving and living independently after stroke.

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A new study suggests that people with mild traumatic brain injuries may be more likely to have cognitive impairment, cognitive decline or both one year later, compared to people who were not injured. The research is published in the February 16, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. People with poor cognitive outcomes were also more likely to have other symptoms like anxiety and lower satisfaction with life.

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Studies have shown that Aboriginal Australians living in remote areas of the country are disproportionately affected by dementia, with rates approximately double those of non-Indigenous people. A new study shows that Aboriginal Australians living in urban areas also have similar high rates of dementia. The study is published in the February 9, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. The study looked at Aboriginal Australians and Torres Strait Islander peoples

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A new study has found no link between a strep throat infection and the development of tics in children who have a parent or sibling with a chronic tic disorder. The research is published in the February 2, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology.

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Subtle changes in the structure and the diastolic function of a person’s heart between early adulthood and middle age may be associated with a decline in thinking and memory skills. The research is published in the January 26, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. The diastolic function of the heart is when it rests between beats and the chambers fill with blood.

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A new study shows that people with Parkinson’s disease who eat a diet that includes three or more servings per week of foods high in flavonoids, like tea, apples, berries and red wine, may have a lower chance of dying during the study period than people who do not eat as many flavonoids. The research is published in the January 26, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. The study looked at several types of flavonoids and found that higher consumption of flavan-3-ols and anthocyanins, both before and after a Parkinson’s diagnosis, was associated with lower risk of death during the study period.