Articles tagged with Human Biology
Researchers studied the association of 12 immune cell types with epigenetic age acceleration in healthy and diseased populations. Their work sheds light on the complex interplay between immune cell composition and epigenetic aging.
A WVU biologist is studying how genes establish animal body plans and contribute to regenerative abilities. He has identified Hox genes as key players in planarian regeneration, suggesting their functions may differ in highly regenerative versus poorly regenerative organisms.
Researchers have developed a new class of synthetic polymers that effectively combat fungal infections by attacking the cells in multiple ways. These compounds mimic naturally occurring peptides and offer potential for sustainable treatment options with improved survival rates.
A new study by UC Riverside demonstrates that calorie restriction does not significantly reduce voluntary exercise in mice. Researchers found that mice continued to run at similar levels regardless of the amount of food they ate, challenging the long-held belief that dieting drains workout energy. The study's findings have implications...
Researchers discovered a monthly treatment that extended the lives of mice by 9%, allowing them to live healthier for longer periods. The treated mice retained their physical function and overall frailty until the end of their lives, unlike controls, which showed significant declines in health.
Researchers have developed a new therapy called PIPE-307 that targets an elusive receptor on certain cells in the brain, prompting them to mature into myelin-producing oligodendrocytes. This could potentially reverse damage caused by multiple sclerosis, leading to improved movement, balance, and vision.
Liheng Cai, a UVA engineering professor, has received a $1.9 million NIH grant to create advanced biomaterials that can be used to repair living tissues and build organ structures. His lab aims to develop polymers that mimic human biology and integrate healthy cells into the human body.
Dr. Elks' research focuses on the communication loop between fat cells and immune cells, which promotes inflammation and insulin resistance when disrupted. The grant aims to uncover patterns in cell communication that can be used to treat obesity and other metabolic diseases.
Researchers found that humans were born to run due to their unique physiological traits and social benefits of endurance pursuits. Studies reveal that humans were engaging in endurance hunting tactics for thousands of years, with similar patterns observed across diverse environments.
Researchers at UC San Francisco found a link between healthy diets and a younger biological age. Even when people eat healthy diets, each gram of added sugar is associated with an increase in epigenetic age. The Mediterranean diet had the strongest association with lower epigenetic age.
Pagliarini's research aims to shed light on the underlying genetic causes of mitochondrial disorders, which affect one in 5,000 people. He will use this funding to expand his work on mitochondrial proteins and their functions, with a focus on coenzyme Q.
A study by Dr. Takanori Sekito and colleagues reveals a strong association between vaginal pathogenic Escherichia coli and recurrent cystitis in postmenopausal women, suggesting that targeting both the urinary bladder and vagina is crucial for effective treatment.
Pamela J. Bjorkman, K. Christopher Garcia, and Ian A. Wilson receive inaugural prize for their groundbreaking research in structural immunology, which has paved the way for novel disease treatments and revealed new insights into the immune system.
A new handheld device enables rapid non-invasive detection of harmful chemicals and biological molecules using a Raman spectrometer and cellphone camera. This technology reduces analysis time from days to minutes, making it ideal for remote areas where laboratory spectrometers are impractical.
Jordan Brown, a postdoctoral research associate at UTA, received a Postdoctoral Research Fellowship from the NSF to analyze bird specimens from European museums and track changes in air pollution levels. His research aims to understand how industrialization affected wildlife and contribute to the study of climate change.
The Tulane University-led COBRE will investigate biological sex and gender differences to improve medical outcomes, focusing on differences in autoimmune diseases, pneumonia infections, and treatment responses. The center aims to develop sex-specific miniaturized models of human tissues and organs to study disease progression.
A team of researchers has discovered a mechanism by which the liver's immune cells are suppressed in chronic hepatitis B, leading to organ damage. The 'sleep timer' function allows immune cells to weaken their activity over time, preventing them from proliferating excessively and causing further damage.
Researchers at Cornell University have developed a bioelectric device that can detect and classify new coronavirus variants, identifying those most harmful. The device uses a biomembrane on a microchip to recreate the cellular environment for infection, allowing for quick characterization and analysis of variant mechanics.
Researchers have developed a humanized mouse model with a fully functional human immune system, enabling the study of immunotherapy development, disease modeling, and vaccine development. The new model, called TruHuX, mounts specific antibody responses and can develop full-fledged systemic lupus autoimmunity.
Researchers tracked free-ranging Egyptian fruit bats and found they possess high cognitive abilities, including episodic memory, mental time travel, and delayed gratification. The study revealed that older bats can estimate time passed since their last visit to a tree and avoid those with stopped bearing fruit.
A new liquid biopsy method analyzes gene fragments in the bloodstream to detect and track cancer, enabling oncologists to tailor treatment approaches to individual patients. This non-invasive test can help monitor treatment success, detect cancer recurrence, and improve patient quality of life.
Researchers at U of T have developed a deep-learning model called PepFlow that can predict the full range of conformations for peptides, which are shorter than proteins but perform similar biological functions. The model combines machine learning and physics to capture precise and accurate conformations within minutes.
A recent study published in JAMA Network Open reveals that nearly half of long-term antidepressant users can successfully taper off their medication with the help of general practitioner support and internet or telephone helplines. The study found lower rates of depression, fewer withdrawal symptoms, and improved mental wellbeing among...
A team of researchers, including OHIO's Nate Szewczyk and students, published a comprehensive package of papers in Nature journals that transform our understanding of human space biology. The studies reveal how molecular biology and precision medicine can guide humanity into more challenging missions beyond Earth.
A Michigan Medicine study reveals that circadian rhythms play a crucial role in mobilizing innate lymphoid cells, which defend barrier tissues. The study found that clock genes regulate the activation of these cells at different times of day.
Researchers found that only 5% of therapies tested in animals gained regulatory approval for human use. The analysis of over 120 systematic reviews revealed a steep drop-off before final approval, suggesting areas for improvement in experimental approaches.
A new study found that physical activity and cognitive training can improve life satisfaction and mood for adults with Down’s syndrome. The Mindsets study involved 83 participants who were assigned to one of four groups for an eight-week period, including a control group, light physical exercise, or BrainHQ activities.
Researchers at Dartmouth College found that fruit fly oocytes can renew chromosome-linking proteins, potentially helping older women reduce pregnancy complications. The discovery could lead to new therapeutic strategies for enhancing protein rejuvenation in human eggs.
Researchers at the University of Delaware have developed a simplified method for preparing protein samples for proteomics analysis, enabling faster, cheaper and more efficient testing. This breakthrough could pave the way for precision medicine by helping scientists better understand protein changes in the body.
Research at the University of Zurich reveals that the first week after birth is a critical period for the development of senses, particularly smell and touch. Olfactory stimuli can induce neural activity across multiple brain regions, including areas responsible for non-olfactory sensory processing.
Researchers developed a reliable iris recognition method by applying statistical limits to the spatial domain zero crossing technique, reducing errors to 0.022%. The algorithm uses a neural network to recognize unique features of each person's iris, achieving over 99.78% accuracy.
A study led by Rensselaer Polytechnic Institute's Jennifer Hurley discovered that positively charged amino acid blocks in the disordered clock protein FRQ allow it to interact with FRH in an unexpected way, leading to a persistent circadian oscillator. This finding has implications for understanding circadian rhythms and their potentia...
Researchers will study polyploidy's effects on plants and animals, from ecosystems to cells, with potential applications in agriculture, medicine and conservation. The project aims to identify consistent rules governing polyploidy and its role in shaping biodiversity.
A recent study has identified over 300 distinct types of bacteria in Roman Baths water, including those with antibiotic-producing capabilities. These microorganisms show promise as a potential source of novel natural products to combat antibiotic resistance.
A study published in PLOS Biology found that negating adjectives affects brain processing, with slower reaction times and varied interpretations. The researchers used magnetoencephalography to capture brain activity while participants rated affirmative or negated phrases.
A team of researchers created a microfluidic human cervix model that replicates the complex interactions between cervical epithelial cells, mucus production, and microbiome. The Cervix Chip technology offers a new testbed for bacterial vaginosis therapeutics and other treatments, addressing a key women's health gap.
Researchers use atomic force microscopy to study mouthfeel and flavor perception, potentially leading to health-promoting products with optimal taste. The study's findings could also redefine the traditional definition of flavor, incorporating mechanical perception as an additional factor.
Researchers at Tokyo University of Science have developed a new method to synthesize complex sulfur molecules, including phenothiazines and thianthrenes, with high stability and control over reaction conditions. This approach uses readily available aryne precursors and avoids foul odors associated with conventional methods.
Researchers investigated the biological repercussions of UV-C radiation exposure from readily available domestic lamps and found that even brief exposure can lead to irreversible alterations in skin cells and retinal cells. The study highlights the need to prioritize safe utilization of these lamps to prevent potential harm.
Researchers found elevated expression of RPGRIP1L in invasive breast cancer specimens, correlating with shorter survival times and unfavorable clinicopathological features. The study identified 50 genes and 15 proteins related to RPGRIP1L expression, including those involved in immune response and metabolism.
New research reveals exercise reverts aged microglia gene expression patterns to those of young microglia, supporting the formation of new neurons in the hippocampus. Exercise also reduces T cell accumulation in the brain, a common feature of aging.
Researchers at Tokyo University of Science developed menthyl esters with potent anti-inflammatory and anti-obesity effects. The compounds outperformed menthol in inflammatory assays and suppressed genes involved in immune responses. They also inhibited adipogenesis, showing promise for addressing metabolic disorders.
Farny will investigate the impact of methylation on gene expression of Pseudomonas putida in soil and laboratory conditions, building gene circuits to test engineered bacteria. The project aims to advance the use of bacteria for environmental cleanups and create educational resources for undergraduate students.
Three FAU researchers have received $1M in FDOH grants to develop innovative approaches against Alzheimer's disease. Mare Cudic aims to explore the link between glycosylation and neuroinflammation, while Ruth Tappen develops an online screening tool for older drivers with cognitive decline.
Scientists identify crucial protein PicA in jumbo phages that selectively transport proteins to replicate inside bacteria. This discovery sheds light on the complex biological makeup and mechanisms within these mysterious viruses.
Researchers used a novel deep proteomics approach to investigate the effects of aging and resistance training on skeletal muscle. The study found that aging predominantly affects non-contractile proteins, while resistance training has minimal effects on protein abundance.
A UT Arlington student has made a groundbreaking connection between worm behavior and brain disease in humans. Through her research, she found that worms with mutations in neurodegeneration genes exhibit abnormal reactivity to stimuli, similar to those affected by schizophrenia and other neurological disorders.
Researchers identified a genetic link between higher levels of arachidonic acid and lower risk of bipolar disorder. Arachidonic acid, found in meat, seafood, and human milk, may hold potential for lifestyle or dietary interventions to prevent or treat the condition.
Research at the Max Planck Institute for Biological Intelligence reveals that zebra finch chicks' first vocalizations play a key role in memorizing adult songs. The chicks' babbling is necessary to initiate the sensory phase of song learning, enabling them to store and recall the learned song.
Researchers at TUM have uncovered a mechanism by which tumor cells prevent the formation of immune responses, including cytotoxic T cells. This discovery provides rationales for new cancer immunotherapies and could enhance existing treatments.
Researchers have found that genetic mutations are not essential for cancer onset, and instead, epigenetic dysregulation plays a crucial role. Epigenetic changes can cause gene expression to be altered, leading to tumour formation even after the signal has been restored.
A recent study published in PLOS Biology found that post-mitotic brain neurons re-entering the cell cycle rapidly succumb to senescence. This process is more common in Alzheimer's disease and may provide valuable information about neurodegeneration, while the technique used can be applied to other inquiries.
A new Harvard study reveals that male bonobos engage in more acts of aggression than chimpanzees, contrary to their peaceful reputation. The researchers found that bonobos exhibit less sexual coercion and violence towards females, but more frequent 'squabbling' among males.
Researchers at CeMM Research Center create 'vpCells' method for simultaneous fluorescent labelling of many proteins, enabling precise tracking and exploration of protein function. The approach opens up new applications in fundamental cell biology and drug discovery.
Researchers found that ~60% of tissues exhibit a significant negative correlation between age and stemness score, indicating a pan-tissue decline in stemness. This study adds weight to the idea that stem cell deterioration contributes to human aging, with hematopoietic stem cells from older individuals showing higher stemness scores.
A study of 175 national and elite female athletes found that opinions on transgender athlete eligibility differ according to sport and level of competition. The majority (58%) support biological sex categorization, while a large majority (81%) believe sporting bodies should improve inclusivity for transgender athletes.
A new machine learning method called scGHOST has been introduced to identify single-cell 3D genome subcompartments and connect them to gene expression patterns. This can reveal the spatial organization of chromosomes within the nucleus, shedding light on how DNA structure influences gene expression and disease processes.
Scientists discovered that tiny brain bubbles called small extracellular vesicles carry more complete instructions for altering cellular function than previously thought. Researchers found nearly 80% of identified mRNAs were full-length, allowing them to be transcribed by recipient cells into viable proteins.
A new study found that postmenopausal women exhibit smaller cortical surface areas in certain brain regions, reduced thalamic subnuclei volumes, and decreased functional connectivity, suggesting a link between menopause-related symptoms and brain changes.
A second-generation melanoma vaccine has shown improved survival rates for male patients compared to female patients, particularly those who are younger and have earlier-stage cancer. The vaccine targets helper T cells to recognize melanoma proteins, leading to boosted patient survival and reduced cancer reoccurrences.