Researchers have identified a new genetic clue that may contribute to the development of late-onset Alzheimer's disease. Variations in the SORL1 gene were found to be associated with an increased risk of the disease, and altering the levels of this protein changed the way amyloid beta fragments were produced in cells.
A new imaging molecule, FDDNP, can detect and map plaques and tangles in the brains of people with Alzheimer's disease, enabling earlier diagnosis and potentially preventing progression. The compound binds to abnormal deposits on PET scans, correlating well with clinical diagnoses measured by memory tests.
A new study found that short-term cognitive training can offset the expected decline in older adults' thinking skills, with benefits persisting for up to five years. The study showed improved performance in everyday tasks such as meal preparation and managing finances.
The study found that herbal supplements including black cohosh did not reduce menopausal symptoms. In contrast, hormone therapy significantly reduced symptoms in postmenopausal women, highlighting the importance of well-designed research to evaluate complementary and alternative medicine approaches.
Chronic disability rates decline significantly among older adults from 1982 to 2004/2005, with greatest improvements seen in most severely impaired individuals. The rate of decline accelerates over time, indicating continued improvement in health and function.
A multifaceted intervention improved quality of life for caregivers of people with dementia, reducing clinical depression and caregiver burden. The program showed significant benefits for Hispanic and white caregivers, while African American spouse caregivers also saw improvements in self-care.
A study by the NIH/National Institute on Aging demonstrates that resveratrol, an activator of sirtuins, can improve health and survival in aged overweight male mice. Resveratrol supplementation improved insulin sensitivity, reduced liver size, and enhanced motor function in the mice compared to those without resveratrol.
A new study reveals a common pathological process between frontotemporal dementia and amyotrophic lateral sclerosis (ALS), with misfolded protein TDP-43 identified as a key component. This discovery may lead to a better understanding of these devastating neurological diseases.
A recent study comparing the health of middle-aged Americans and English counterparts found that Americans reported significantly higher levels of diabetes, hypertension, and heart disease. The research suggests that differences in healthcare systems, social programs, and economic factors may contribute to these disparities.
The US aging population is expected to double in size within 25 years, driven by demographic shifts and increased life expectancy. Higher levels of education and better health are linked to improved socioeconomic circumstances and a higher standard of living in retirement.
The NIH Cognitive and Emotional Health Project aims to coordinate research on interventions for neurological health. The report highlights the interconnectedness between cognitive and emotional health, emphasizing the need to examine them simultaneously.
A new study found that having a sick spouse increases the risk of death for partners, with some diseases having a greater impact. The study, which analyzed over half a million couples, suggests that social networks and caregiving can affect health outcomes.
The $60 million ADNI study aims to identify biological markers for memory decline and Alzheimer's disease, utilizing serial MRI scans, PET scans, and biomarker measurements. Researchers will compare data from 800 adults aged 55-90 to develop standards for tracking memory decline progression.
A study of 1,740 adults aged 65+ found that regular exercise reduced the risk of dementia by 32%. The research followed participants for an average of 6.2 years and analyzed their physical activity levels in relation to cognitive function.
Researchers used high-tech brain imaging and measurement of beta-amyloid protein fragments in cerebrospinal fluid to detect Alzheimer's disease. The study found that greater amounts of beta-amyloid containing plaques were associated with lower levels of amyloid-beta 1-42, a major component of amyloid plaques.
A study published in Circulation: Journal of the American Heart Association found that heart attack patients treated at hospitals with a large proportion of African-American patients had higher mortality rates. Targeted quality improvements could enhance care for all patients and reduce disparities.
A study reports that national character stereotypes are common and often mistaken, with no agreement between average trait levels and stereotypes. Researchers found that many traits, such as assertiveness and openness to experience, are not consistent with their respective cultures' perceptions.
A study published in Neurology found that people who lost approximately one unit of BMI per year had a 35% greater risk of developing Alzheimer's disease. The researchers also found a similar relationship between changes in BMI and rate of cognitive decline, which is the clinical hallmark of AD.
Researchers at NIA discover new gene FANCM linked to Fanconi anemia and increased cancer risk. The gene plays crucial role in DNA repair machinery, offering potential targets for treatment.
A new study found that exercise can delay the development of Alzheimer's-like brain changes in mice by decreasing beta-amyloid levels. Exercise was shown to improve learning and memory in mice with AD-like pathology, suggesting a potential mechanism for reducing cognitive decline.
A major clinical trial suggests that the use of donepezil may delay the clinical diagnosis of Alzheimer's disease in people with mild cognitive impairment, with a 58% reduced risk at one year. The study also highlights the importance of considering genetic factors, such as apolipoprotein E-4, in making treatment decisions.
Researchers developed a conformation-dependent immunoassay (CDI) that detects prions in human brain tissue, outperforming standard immunological methods. CDI detected abnormal prions in all sampled brain regions, suggesting its potential for accurate diagnosis of prion diseases like CJD.
A two-year study found that older beagles performed better on cognitive tests when fed a balanced diet with fruits and vegetables, exercised regularly, and provided stimulating environments. The combination of these interventions showed the most significant improvements in brain function.
A study found that a mutation in the LRRK2 gene appears in at least one of every 60 people with Parkinson's disease. The mutation may account for 1½ to 2 percent of cases, particularly those without a family history, and could lead to earlier detection of the disease.
Researchers found that women experiencing menopause have reduced estrogen sensitivity in their brains, leading to increased hot flashes and night sweats. The study suggests that this insensitivity may contribute to menopause-related symptoms.
A new method, called Day Reconstruction Method (DRM), assesses how people spend their time and feel about daily activities. The study found that relaxing with friends is an enjoyable activity, while commuting is not.
Despite progress, older Americans face disparities in education, wealth, healthcare access, and risk factors for chronic diseases. The report highlights the need to address these gaps to ensure better quality of life for aging populations.
A study published in Health Services Research found that diabetes associated with early retirement, disability, and work absenteeism resulted in estimated losses of $2,800 to $22,100 per person. The total economic toll was $133.5 billion over the lifetime of this age group.
Scientists have identified two genetic mutations in the PARK8 gene that contribute to Parkinson's disease, a condition characterized by tremors and motor impairments. The discovery provides new insights into the molecular mechanisms underlying the disease and may lead to targeted interventions.
A study published in Science found that humans have competing economic value systems, with the emotional brain prioritizing short-term gratification and the logical brain promoting long-term rewards. This discovery has significant implications for predicting economic and behavioral health patterns.
The study aims to develop new treatments and monitor their effectiveness by tracking cognitive changes associated with MCI and AD. Researchers will use neuroimaging, biological, and clinical information from over 800 participants to identify critical biomarkers that respond to treatments.
A pilot program pairing medical students with older artists showed a statistically significant improvement in students' attitudes towards aging. The Vital Visionaries program aims to improve care for older people by changing medical students' perspectives on age and creativity.
Researchers at NIH/National Institute on Aging created synthetic prions that caused neurological disease in mice, distinct from other strains of prions. The study sheds light on the conversion process leading to dementing diseases like Creutzfeldt-Jakob and Alzheimer's.
The study found that participants on donepezil experienced a slower progression to Alzheimer's disease compared to those on placebo, with an average delay of 661 days. However, the effects were only observed during the first half of the study and further analyses are needed to confirm these findings.
Researchers found that mouse brain stem cells can develop into blood vessel cells, expressing markers associated with endothelial cells. This discovery keeps the possibility open of harnessing adult stem cells from different organs to prevent and treat neurological disorders.
Researchers found that individuals with early AD who participated in a 3-to-4 month cognitive rehabilitation program showed significant improvements in face-name recognition, mental processing speeds, and time-place orientation. The study suggests that people with early AD can be taught techniques to help stay engaged in everyday life.
A nationwide study found that restricting medication use due to cost can lead to significant declines in self-reported health status and increased rates of depression among older adults. The study, which included over 7,900 participants, highlights the importance of access to prescription medications for older patients.
A recent study found that estrogen-alone hormone therapy may increase the risk of dementia in older postmenopausal women by 49%. This is compared to a placebo group where no such increase was observed. The researchers also found that almost half of the cases in both groups were Alzheimer's disease.
Researchers found that older adults who pictured testing their blood sugar were 50% more likely to do so regularly compared to those using other memory techniques. The study's findings suggest that imagination may be a powerful and inexpensive technique for improving medication adherence in older adults.
A long-term study found that people with diabetes are at a 65% increased risk of developing Alzheimer's disease compared to those without the condition. The study also showed that cognitive decline in perceptual speed was associated with diabetes, but not other cognitive systems.
A recent study published in JAMA found that approximately four out of five newly-disabled older people regain independence within six months. However, recovery is often short-lived, with many experiencing recurrent episodes of disability.
Researchers found that people with Alzheimer's disease survived about half as long as similar-aged individuals without the disease. Poor scores on memory tests predicted shorter survival times after diagnosis, while walking problems, congestive heart failure, and diabetes were also significant predictors of reduced life expectancy.
Researchers found that adult ovaries produce new oocyte-containing follicles, defying the traditional understanding of ovarian function. Ovarian follicle numbers even increased with age in some strains of mice.
A study by NIH researchers found that low free testosterone levels may be associated with an increased risk of developing Alzheimer's disease in older men. The study, conducted on 574 men aged 32-87, revealed a 26% decrease in AD risk for every 50% increase in free testosterone index.
The NIA is concerned about the growing use of testosterone replacement therapy without sufficient scientific information. Short-term studies are recommended to determine potential risks and benefits for symptomatic older men with low testosterone levels. Longer term trials will assess risks and benefits for these conditions, such as fr...
Researchers discovered a major new finding on the genetics of Parkinson's disease, focusing on the activity of alpha synuclein. The study found that an abnormal triplication of genes on chromosome 4 leads to excessive protein buildup, causing Parkinson's symptoms.
A recent study found a dramatic increase in wrist fractures among children under 35 over three decades, with rising physical activity and declining milk consumption contributing to the trend. The research suggests that early-life dietary habits may impact bone development and increase fracture risk later in life.
Researchers found genetic mutations in PHF9 disrupt critical intracellular repair mechanisms, leading to Fanconi Anemia's serious complications. The discovery highlights the importance of PHF9 as a potent cog in DNA repair machinery, with potential implications for preventing excessive DNA damage and cancer.
The study estimates that the national prevalence of Alzheimer's disease will increase significantly by 2050, with 60% of cases projected to affect people 85 and older. This is due to declining death rates after age 65, allowing more people to survive to older ages where the risk of AD is highest.
Older adults with mild anemia are 1.5 times more likely to experience physical decline, according to a study published by the National Institute on Aging. Those with anemia or borderline anemia show greater declines in physical performance, including balance, walking speed, and chair rise ability.