Aging & Longevity
Experiences of lifestyle changes among Thai older adults six months after applying the Plan-Do-Study-Act (PDSA) cycle
CONCLUSIONS: These Thai older adults showed that they had the ability to make lifestyle changes with the support of the PDSA cycle, but not all maintained their planned activities after six months. The question is how healthcare professionals and the surroundings, may further support and motivate these people to maintain these changes based on their own preferences in a sustainable way.
Geriatric education for pharmacy students: A scoping review
CONCLUSIONS: Gaps remain regarding geriatric inclusion in pharmacy curricula despite decades of evidence, advocacy, and frameworks to guide its development. A wide diversity of teaching methods has been described and their combination may be considered for skills and competency development. There is a need for the scholarship of teaching and learning to be applied to pharmacy programs in order to prepare future pharmacists for an aging society.
Morphological phenotyping of the aging cochlea in inbred C57BL/6N and outbred CD1 mouse strains
Morphological mouse phenotyping plays a pivotal role in the translational setting and even more in the area of auditory research, where mouse is a central model organism due to the evolutionary genetic relationship and morpho-functional analogies with the human auditory system. However, some results obtained in murine models cannot be translated to humans due to the inadequate description of experimental conditions underlying poor reproducibility. We approach the characterization of the aging...
A Review on the Neuroprotective Effect of <em>Moringa oleifera</em>
Moringa oleifera, which is known as a drumstick tree in different areas of the world, is well-known for many health benefits, which are attributed to the abundance of flavonoids, phenolic chemicals, and thiocyanates it contains. This review focuses on M. oleifera's potential for neuroprotection, emphasizing its anti-inflammatory, antioxidant, and neurotransmitter-modulating qualities. Different parts of M. oleifera include leaves, roots, bark, and gum. Flowers, seeds, and seed oil are used for...
Intermittent low-intensity and moderate-intensity exercise effects on cognition in community-dwelling older adults: a pilot study exploring biological mechanisms
CONCLUSION: Moderate-intensity AE and LIM intermittent training likely have distinct cognitive benefits, though low-intensity activity is often included as a control group in exercise trials in aging.
Increased inflammation in older high-pressure glaucoma mice
Besides an elevated intraocular pressure (IOP), advanced age is one of the most crucial risk factors for developing glaucoma. βB1-Connective Tissue Growth Factor (βB1-CTGF) high-pressure glaucoma mice were used in this study to assess whether glaucoma mice display more inflammatory and aging processes than age-matched controls. Therefore, 20-month-old βB1-CTGF and corresponding wildtype (WT) controls were examined. After IOP measurements, retinas were processed for (immuno-)histological and...
Senescence suppresses the integrated stress response and activates a stress-remodeled secretory phenotype
Senescence is a state of indefinite cell-cycle arrest associated with aging, cancer, and age-related diseases. Here, we find that translational deregulation, together with a corresponding maladaptive integrated stress response (ISR), is a hallmark of senescence that desensitizes senescent cells to stress. We present evidence that senescent cells maintain high levels of eIF2α phosphorylation, typical of ISR activation, but translationally repress production of the stress response activating...
Design and methodology of the harmonized diagnostic assessment of dementia for the longitudinal aging study in India: Wave 2
The rising burden of dementia calls for high-quality data on cognitive decline and dementia onset. The second wave of the Harmonized Diagnostic Assessment for the Longitudinal Aging Study in India (LASI-DAD) was designed to provide longitudinal assessments of cognition and dementia in India. All Wave 1 participants were recruited for a follow-up interview, and a refresher sample was drawn from the Longitudinal Aging Study in India, a nationally representative cohort of Indians aged 45 and older....
Endothelial cell-specific progerin expression does not cause cardiovascular alterations and premature death
Hutchinson-Gilford progeria syndrome (HGPS) is a rare genetic disorder caused by a mutation in the LMNA gene that provokes the synthesis of progerin, a mutant version of the nuclear protein lamin A that accelerates aging and precipitates death. The most clinically relevant feature of HGPS is the development of cardiac anomalies and severe vascular alterations, including massive loss of vascular smooth muscle cells, increased fibrosis, and generalized atherosclerosis. However, it is unclear if...
Exceptional longevity of mammalian ovarian and oocyte macromolecules throughout the reproductive lifespan
The mechanisms contributing to age-related deterioration of the female reproductive system are complex, however aberrant protein homeostasis is a major contributor. We elucidated exceptionally stable proteins, structures, and macromolecules that persist in mammalian ovaries and gametes across the reproductive lifespan. Ovaries exhibit localized structural and cell-type-specific enrichment of stable macromolecules in both the follicular and extrafollicular environments. Moreover, ovaries and...
Neurocognitive correlates of cerebral mitochondrial function and energy metabolism using phosphorus magnetic resonance spectroscopy in older adults
The goal of the current study was to learn about the role of cerebral mitochondrial function on cognition. Based on established cognitive neuroscience, clinical neuropsychology, and cognitive aging literature, we hypothesized mitochondrial function within a focal brain region would map onto cognitive behaviors linked to that brain region. To test this hypothesis, we used phosphorous (^(31)P) magnetic resonance spectroscopy (MRS) to derive indirect markers of mitochondrial function and energy...
Plasma proteomics-based organ-specific aging for all-cause mortality and cause-specific mortality: a prospective cohort study
Individual's aging rates vary across organs. However, there are few methods for assessing aging at organ levels and whether they contribute differently to mortalities remains unknown. We analyzed data from 45,821 adults in the UK Biobank, using plasma proteomics and machine learning to estimate biological ages for 12 major organs. The differences between biological age and chronological age, referred to as "age gaps," were calculated for each organ. Partial correlation analyses were used to...
Anti-obesity drug has life-changing benefits for arthritis
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Clonal dynamics after allogeneic haematopoietic cell transplantation
Allogeneic haematopoietic cell transplantation (HCT) replaces the stem cells responsible for blood production with those from a donor^(1,2). Here, to quantify dynamics of long-term stem cell engraftment, we sequenced genomes from 2,824 single-cell-derived haematopoietic colonies of ten donor-recipient pairs taken 9-31 years after HLA-matched sibling HCT³. With younger donors (18-47 years at transplant), 5,000-30,000 stem cells had engrafted and were still contributing to haematopoiesis at the...
The impact of cysteine on lifespan in three model organisms: A systematic review and meta-analysis
Cysteine is an amino acid present in thiol proteins and often dictates their secondary structures. Although considered nonessential, cysteine may be essential for patients with certain metabolic diseases and can reduce the requirement for dietary methionine. Cysteine and some of its derivatives, such as N-acetylcysteine, are considered antioxidants and widely used in animal aging studies. To provide insights into the potential anti-aging effects of cysteine, we systematically reviewed and...
Arginine metabolism is a biomarker of red blood cell and human aging
Increasing global life expectancy motivates investigations of molecular mechanisms of aging and age-related diseases. This study examines age-associated changes in red blood cells (RBCs), the most numerous host cell in humans. Four cohorts, including healthy individuals and patients with sickle cell disease, were analyzed to define age-dependent changes in RBC metabolism. Over 15,700 specimens from 13,757 humans were examined, a major expansion over previous studies of RBCs in aging. Multi-omics...
Age-related cerebral changes during different n-back tasks: a functional near-infrared spectroscopy study
CONCLUSION: These findings may suggest potential markers for cognitive decline, providing a new target for future screening.
Alcohol consumption confers lasting impacts on prefrontal cortical neuron intrinsic excitability and spontaneous neurotransmitter signaling in the aging brain in mice
Both alcohol use disorder (AUD) and cognitive decline include disruption in the balance of excitation and inhibition in the cortex, but the potential role of alcohol use on excitation and inhibition on the aging brain is unclear. We examined the effect of moderate voluntary binge alcohol consumption on the aged, pre-disease neuronal environment by measuring intrinsic excitability and spontaneous neurotransmission on prefrontal cortical pyramidal (excitatory, glutamatergic) and non-pyramidal...
Application of frailty screening instruments for older people in Sub-Saharan Africa: A scoping review
CONCLUSION: Considering the impact of frailty on the health and wellbeing of older people, researchers must consider developing and using frailty screening instruments that assess domains that are pertinent to the health and wellbeing of older people in Sub-Saharan Africa.
Maternal genetic variants in kinesin motor domains prematurely increase egg aneuploidy
The female reproductive lifespan is highly dependent on egg quality, especially the presence of a normal number of chromosomes in an egg, known as euploidy. Mistakes in meiosis leading to egg aneuploidy are frequent in humans. Yet, knowledge of the precise genetic landscape that causes egg aneuploidy in women is limited, as phenotypic data on the frequency of human egg aneuploidy are difficult to obtain and therefore absent in public genetic datasets. Here, we identify genetic determinants of...
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