A new study published in Neurology shows that having depression may increase the risk of developing dementia later in life by nearly 70%. The study examined data from over 900 people with an average age of 79 and found that those with depressive symptoms were more likely to develop dementia, particularly Alzheimer's disease.
Researchers found that antibody-producing B cells contribute to atherosclerosis in mice, while eliminating them could prevent the disease through increased production of immune protein interleukin-17. This discovery suggests that B cell-depleting drugs may also reduce the risk of atherosclerosis.
A new study links child abuse to increased rates of mental disorders in young adulthood, including anxiety, mood, and substance abuse conditions. The study used national records and a community survey to analyze the long-term effects of childhood maltreatment on adult mental health.
A study found that higher concentrations of clusterin protein in plasma are associated with the development and severity of Alzheimer's disease. Clusterin levels were also linked to rapid cognitive decline, brain atrophy, and increased amyloid-beta accumulation.
Researchers use computer models to reveal how genetic mutations and nervous system activity disrupt heart rhythm, increasing risk of sudden cardiac death. The study's findings may lead to preventative treatment options for those at high risk.
Researchers found that virtual food can elicit comparable emotional responses as real food, including increased heart rate and skin conductance. The study suggests the potential use of virtual reality therapy for evaluating and treating eating disorders.
Cyberbullying is associated with a range of psychiatric and physical symptoms, including headaches, abdominal pain, and difficulties in emotions and behavior. Adolescents who are both cyberbullies and victims experience all these conditions, highlighting the need for clear norms and supervision to prevent cyberbullying.
Researchers exposed fetal monkeys to x-rays and found a profound deficit in working memory ability when tested as adults. This mild insult early in gestation produced significant cognitive dysfunction that emerged with maturation, supporting the critical window of vulnerability during brain development.
A Concordia University study evaluated the effect of drugs on sexual behavior, finding that many recreational drugs can cause a loss in libido. The study, which reviewed data from over 100 studies, suggests that drugs and sex don't mix well.
A recent study found that men taking erectile dysfunction drugs have a higher rate of STDs, particularly HIV infection, compared to those who do not use ED drugs. However, the optimal timing for initiating surgery on rotator cuff injuries remains unclear, with experts debating whether early or delayed intervention is best.
A study found that depressive symptoms barely increase before diagnosis and remain stable after diagnosis in patients with Alzheimer's disease. The results suggest depression may be a contributing factor to the disease rather than an early sign.
Researchers at EMBL developed a technique to capture high-quality images of fruit fly embryos and zebrafish development, revealing previously unseen details. By combining multiple images and angles, scientists can now study complex processes in real-time.
A new therapy called olaparib has shown promising results in slowing tumor growth in advanced breast cancer patients with a genetic mutation. The treatment was found to be effective in 85% of patients, with fewer side effects compared to traditional therapies.
Two international studies reveal the world's plant life inhales an estimated 123 billion metric tons of carbon dioxide annually, with tropical forests accounting for 34% of this uptake. The research also shows that factors like water availability and soil transformations play crucial roles in long-term ecosystem carbon balances.
Scientists at TWINCORE have developed a mouse-adapted version of the hepatitis C virus, allowing researchers to study its interaction with the immune system. This breakthrough enables the development of new vaccines and treatments for this chronic infection.
Children saw fewer TV ads for sweets and beverages between 2003 and 2007, but more for fast food, with a 13.7% decline in ads for younger children and a 4.7% increase among teens. Racial gaps in exposure to all food advertising increased, with African American kids seeing 1.4-1.6 times as many food ads per day.
A new study has accurately measured global carbon cycles, enabling more precise predictions of climate change's impact. The research found tropical forests and savannahs are key drivers of carbon dioxide uptake, with precipitation playing a significant role in determining global productivity.
Research finds that anxiety disorders in heart patients are associated with a higher risk of cardiovascular events and death. A study of 1,015 outpatients with stable coronary heart disease found that those with generalized anxiety disorder had a 74% increased risk of cardiovascular events.
A large study found that men using erectile dysfunction drugs had significantly higher rates of sexually transmitted diseases than non-users, highlighting the need for healthcare providers to counsel patients on safer sex practices. The study suggests that ED drug use is associated with higher-risk behaviors and increased STD rates.
Daily cocoa flavanol consumption more than doubles the number of circulating angiogenic cells in the blood, increasing vessel repair and maintenance functions. High-flavanol cocoa also reduces systolic blood pressure and improves blood vessel function by 47%.
A study of 201 students found that a delayed school start time was associated with significant improvements in adolescent alertness, mood, and health. Students reported increased satisfaction with sleep, reduced daytime sleepiness, and improved motivation after the change.
A new clinical decision rule called the Primary Care CHD Score can help primary care physicians rule out coronary heart disease in chest pain patients. The score is based on five predictors, including age/gender and known clinical vascular disease.
A randomized controlled trial found that long-term antioxidant supplementation improved glucose and lipid metabolism, increased large and small artery elasticity, and decreased blood pressure in patients with multiple cardiovascular risk factors. The study suggests that antioxidants may have a beneficial impact on cardiovascular health.
A study found that adolescents who experienced difficult childhoods, such as food insecurity and physical abuse, were more likely to engage in drunkenness. Researchers suggest early treatment for traumatic experiences may help prevent alcohol abuse among teens.
Two phase-2 trials demonstrate the efficacy of olaparib in treating advanced ovarian and breast cancer in patients with BRCA1 or BRCA2 mutations. The higher dose of olaparib showed better treatment response rates compared to the lower dose, with ORR of 33% and 41% respectively.
A new study found that high concentrations of cocoa flavanols decrease blood pressure and improve the health of blood vessels in patients with heart disease. Flavanols, found in foods like cocoa products, tea, and fruits, have a cardio-protective benefit for heart disease patients.
Scientists discover A20 protein plays a protective role in chronic bowel inflammation, making it a promising therapeutic target. The study confirms genome-wide analysis results showing defects in A20 associated with Crohn's disease development.
The study found that stroke incidence rates in urban Tanzania were almost three times higher than in rural areas, with crude yearly rates of 94.5 per 100,000 in rural Hai and 107.9 per 100,000 in urban Dar-es-Salaam. The authors suggest that undiagnosed or inadequately treated hypertension is a major modifiable risk factor for stroke i...
A new preimplantation genetic screening method using micro-array technology has been shown to accurately detect chromosomal abnormalities in 89% of cases. This improvement in detection rate is expected to increase the success rates of IVF treatments for women of advanced maternal age.
Researchers found that raising juvenile salmon at 16°C causes skeletal deformities. Fast growth temperatures disrupt bone and cartilage production, leading to increased deformity rates. The study suggests temperature-induced growth is severely affecting osteoblasts and chondrocyte cells.