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Aging | IGF1 gene therapy in middle-aged female rats delays reproductive senescence through its effects on hypothalamic GnRH and kisspeptin neurons

Researchers found that IGF1 gene therapy increases kisspeptin expression and GnRH release, and alters microglial cell numbers, suggesting a potential protective effect against reproductive decline. This could lead to new strategies for optimizing lifespan and combating age-related health problems in women.

SourceImpact Journals LLC·JournalAging-US·TypeExperimental study·DateNov 16, 2022

Is weakness the new smoking? Muscle strength tied to biological age, study shows

Researchers at Michigan Medicine found a strong association between lower grip strength and accelerated biological aging in middle-aged and older adults. This study provides evidence that maintaining muscle strength across the lifespan may help protect against age-related diseases.

SourceMichigan Medicine - University of Michigan·JournalJournal of Cachexia Sarcopenia and Muscle·TypeObservational study·DateNov 10, 2022

New technique helps ID genes related to aging

Researchers from North Carolina State University have developed a new method for identifying genes relevant to the aging process in the C. elegans roundworm model. By exposing thousands of worms to random genetic mutations, they can pinpoint which genes are associated with protein aggregation and reduced lifespan.

SourceNorth Carolina State University·JournaliScience·TypeExperimental study·DateNov 1, 2022

Sites in the brain where RNA is edited could help to better understand neurodevelopment and disease, researchers have found

Mount Sinai researchers catalogued thousands of sites in the brain where RNA is modified throughout the human lifespan, increasing with age. This study provides a model depicting how A-to-I editing evolves over a lifetime, shedding light on its role in health and disease.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalCell Reports·TypeData/statistical analysis·DateNov 1, 2022

Study published in Endocrinology by Heritage College researchers finds disruption of the growth hormone receptor gene in adipose tissue results in increased lifespan in mice

Researchers discovered that stopping GH activity in fat cells improves health and increases lifespan in mice. The study found approximately 23% lifespan extension due to GHR disruption, with improved insulin sensitivity and reduced frailty scores.

SourceOhio University·JournalEndocrinology·TypeExperimental study·DateOct 26, 2022

Vitamin D deficiency linked to premature death

A new study from the University of South Australia found that severe vitamin D deficiency is associated with a higher risk of mortality. The research evaluated 307,601 records from the UK Biobank and found that individuals with low vitamin D levels had a significantly decreased risk of death over a 14-year follow-up period.

SourceUniversity of South Australia·TypeData/statistical analysis·DateOct 25, 2022

No evidence that dehorning black rhinos negatively impacts the species’ reproduction or survival, study finds

A study by the University of Bristol and Namibian Ministry found no statistically significant differences in population growth factors between dehorned and horned black rhinos. The research suggests that dehorning is not a hindrance to black rhino reproduction or survival, reassuring its use as an anti-poaching deterrent.

SourceUniversity of Bristol·JournalEuropean Journal of Wildlife Research·TypeObservational study·DateSep 21, 2022

Physical activity may have a stronger role than genes in longevity

A recent study published in the Journal of Aging and Physical Activity found that higher levels of light physical activity and moderate-to-vigorous physical activity were associated with lower risk of death. In contrast, higher sedentary time was linked to increased mortality risk, regardless of genetic predisposition for longevity.

SourceUniversity of California - San Diego·JournalJournal of Aging and Physical Activity·TypeObservational study·DateAug 24, 2022

Hibernation slows biological aging in bats

A study led by UMD researchers found that hibernating big brown bats experience slower epigenetic aging, with their biological clock extending by nearly a year. The study established the link between hibernation and longer lifespans in small mammals.

SourceUniversity of Maryland·JournalProceedings of the Royal Society B Biological Sciences·DateAug 9, 2022

Do optimists live longer?

A recent study published in the Journal of the American Geriatrics Society found that higher levels of optimism are associated with longer lifespans and a greater likelihood of living past 90 years of age. Lifestyle factors accounted for nearly one-quarter of the optimism-lifespan association across racial and ethnic groups.

SourceWiley·JournalJournal of the American Geriatrics Society·DateJun 8, 2022

High optimism linked with longer life and living past 90 in women across racial, ethnic groups

A study published in Journal of the American Geriatrics Society found that higher levels of optimism were associated with longer lifespan and living beyond age 90 in women from diverse racial and ethnic groups. Optimism was linked to a 5.4% longer lifespan and a 10% greater likelihood of living beyond 90 years.

SourceHarvard T.H. Chan School of Public Health·JournalJournal of the American Geriatrics Society·TypeObservational study·DateJun 8, 2022

Weights can be weapons in battle against obesity

A recent study published in Obesity Reviews found that resistance training, in conjunction with a reduced calorie diet, can lead to significant fat mass and muscle loss. This breakthrough highlights the importance of considering non-aerobic exercise options for individuals struggling with obesity.

SourceEdith Cowan University·JournalObesity Reviews·TypeMeta-analysis·DateMay 15, 2022

Oncoscience: Altos Labs and the quest for immortality - Dr. Blagosklonny’s perspective

Dr. Blagosklonny discusses the potential of combining rapamycin with other modalities to live long enough to benefit from future discoveries in cellular reprogramming. He emphasizes that Altos Labs needs to develop rapamycin-based drug combinations to achieve additional decades of life extension, potentially within 3-5 years.

SourceImpact Journals LLC·JournalOncoscience·TypeCommentary/editorial·DateMay 11, 2022

Research examines keys to developing better batteries

A new study examines how individual electrode particles contribute to battery decay and identifies key factors, including particle properties and interactions. The research aims to develop techniques to control these properties and design more efficient, long-lasting batteries.

SourceVirginia Tech·JournalScience·TypeComputational simulation/modeling·DateApr 28, 2022

New Chinese Medical Journal study assesses mortality risk in multimorbid patients

A new study published in the Chinese Medical Journal assessed mortality risk in middle-aged and older Chinese individuals with multiple diseases. The study identified four multimorbidity patterns, with cardiometabolic being the most common, and found that individuals with these patterns had a significantly increased mortality risk.

SourceCactus Communications·JournalChinese Medical Journal·TypeObservational study·DateApr 13, 2022

Barriers to an active lifestyle at older ages

A study of 3,900 older adults found factors associated with decreased physical activity include older age, living alone, obesity, adverse health conditions, and poor physical functioning. The results highlight the need for interventions targeting these barriers to promote healthy lifestyles in older age.

SourceJAMA Network·JournalJAMA Network Open·DateApr 7, 2022

Brain charts map the rapid growth and slow decline of the human brain over our lifetime

Researchers created brain charts spanning human lifespan, revealing rapid brain growth in early life and slow decline with age. The charts use aggregated MRI datasets, covering a range of ages from fetus to 100-year-old adult, and aim to create a common language for describing brain development and maturation.

SourceUniversity of Cambridge·JournalNature·TypeComputational simulation/modeling·DateApr 6, 2022