Aging cells that support stem cells may disrupt them through chemical signals
This is a review that pulls together older and newer studies. It proposes a model, but it does not show that the model is true.
Original title: Senescent Mesenchymal Stromal Cells Drive Stem Cell Aging Through Dysregulated Chemokine Synthesis.
Aging liver cells may help drive fatty liver disease, a review finds
This review pulls together earlier studies on senescent liver cells and their role in fatty liver disease. It says the link is plausible, but many questions are still open.
Original title: Impaired immune surveillance of senescent hepatocytes in MASLD: SASP signaling and fibrogenic progression.
Mixing a senescence-clearing drug with trametinib slowed glioma regrowth in mice
Researchers found a drug combination that cleared aging-like tumour cells in mice and slowed regrowth. This does not show the combination would work the same way in children.
Original title: Standard treatment against paediatric BRAF-V600E glioma promotes senescence and sensitizes tumours to BCL-xL inhibition.
New fluorescent sensor detects cells aging from cancer and lung drugs
Researchers built a glowing probe that lights up only in certain aged cells. It may help scientists track these cells in living animals, but this is early lab work.
Original title: A Dual-Locked β‑Galactosidase/pH Near-Infrared Sensor Enables High-Fidelity Monitoring of Therapy-Induced Senescence.
Matching training loads to strength or speed profile in older adults
Older adults trained at loads matched to their speed gap or at loads not matched. Each group changed differently in force and speed, but power and daily function did not differ.
Original title: The Effects of Force-Velocity Profile-Based Load Prescription on Muscle Power and Functional Performance in Velocity-Deficient Older Adults.
Short exercise breaks for older nursing home residents with muscle loss
This is a plan for a trial, and it has not reported results yet. It does not show whether the exercises help, so we cannot say yet.
Original title: Effects of exercise snacks combining resistance training and Wuqinxi on older adults with possible sarcopenia in nursing homes: protocol for a randomized controlled trial.
Review of how the FOXO4 protein may guard cells against damage and aging
This review sorted past studies on FOXO4 by how directly they tested it. Some links are well supported, but many antioxidant effects are still based on related proteins.
Original title: FOXO4 as a Redox-Sensitive Regulator of Antioxidant Defense and Cellular Senescence: Cysteine-Based Signaling, p53 Interaction, and Therapeutic Targeting.
Dog Aging Project receives $29 million in NIH funding
The Dog Aging Project has received $29 million from the NIH, according to Longevity.Technology. The teaser gives no further details about the award or its research plans.
Original title: Old dogs, new funding: Dog Aging Project fetches $29m from NIH
Red light therapy and aging: what a review of past studies found
This review looks at past studies of red and near-infrared light on aging-linked conditions. It says the results are promising, but treatment methods are not yet standard.
Original title: Red Light Therapy and Mitochondrial Rejuvenation in Age-Related Disorders.
Review of 76 studies on what helps people age well
Researchers searched three databases and sorted 76 studies about successful aging. Support from others and good health showed up as key factors in all nine studies that defined them.
Original title: Investigating the Determinants of Successful Aging: A Systematic Review.
A vaccine-style treatment in mice eased diabetes signs and aged cell markers
Mice given a treatment aimed at a virus-like gene showed less weight gain and better blood sugar control. This study was in mice and cells, so it does not show the same would happen in people.
Original title: Immunotherapy targeting an endogenous retrovirus decreases islet senescence markers and preserves glucose control in a mouse model of type 2 diabetes.
Protein NEDD4 may protect disc cells from aging and cell death in a lab test
Researchers grew disc cells in a dish with an inflammation signal. Boosting NEDD4 eased aging and cell death, and it broke down another protein called PTEN. More tests in living animals and more checks are still needed.
Original title: Neural precursor cell expressed developmentally downregulated 4-mediated phosphatase and tensin homolog ubiquitination alleviates senescence and apoptosis of nucleus pulposus cells under interleukin-1 beta conditions.
Hearing, loneliness, and memory linked in older Europeans but not clearly causal
Poorer hearing went with more loneliness and weaker word recall. The studies found little proof that loneliness is what causes memory decline from hearing loss.
Original title: Loneliness as a pathway linking hearing decline to cognitive aging: Longitudinal and genetic evidence.
Short daily fasting extended lifespan in tiny worms
Worms fasted for part of each day lived longer than worms that did not fast. This work was in worms, so it does not show the same would happen in people.
Original title: A simplified intermittent fasting regimen robustly extends C. elegans lifespan without FUdR or antibiotic confounds.
Immune cell pathway linked to physical frailty and muscle scarring
Researchers found a signal, CXCL9, linked to frailty and muscle scarring in blood, muscle samples, and lab cells. This preprint has not been checked by other scientists, so it does not prove the signal causes frailty.
Original title: IFNγ-CXCL9-CXCR3 axis links T cell recruitment to skeletal muscle remodelling in human physical frailty
A proposed plan to tailor oxygen chamber treatment using biomarkers
The authors describe a framework for adjusting hyperbaric oxygen dosing based on body markers. It is a conceptual idea, not a tested method, and it needs future studies to check it.
Original title: Precision hyperbaric oxygen therapy: a biomarker-driven framework.
Chinese team's senolytic nanovaccine extends median lifespan 12% in naturally aged mice
Researchers in China published in Advanced Science a three-part senolytic nanovaccine targeting dendritic cells. In mice, vaccination reduced senescence markers in fat, improved glucose tolerance and liver fat, and in naturally aged mice vaccinated at 75 weeks extended median lifespan by 12%.
Original title: An Anti-Senescence Vaccine Increases Mouse Lifespan
Eos SENOLYTIX reports interim aged-rat data showing preserved physical function with PTC-2105
Eos SENOLYTIX reported interim data from an aged-rat study of its MitoXcel geropeptide PTC-2105. The company says the results showed preserved physical function in a second species.
Original title: Eos SENOLYTIX Reports Interim Data Showing Preserved Physical Function with MitoXcel Geropeptide PTC-2105 in a Second Species, Aged-Rat Study
Bone cells may release proteins that slow aging in mice
A Science report says bones may release proteins that slow aging and extend lifespan. The teaser states that exercise prompts osteocytes, bone cells, to secrete antiaging chemicals in mice.
Original title: Bones may release proteins that slow aging and extend life span
Longevity.Technology commentary argues blue zones should come with an expiry date
A Longevity.Technology commentary argues that blue zones, regions with unusually long-lived populations, should be treated as having an expiry date. Only the headline and teaser were available, so no further detail is known.
Original title: Every blue zone should come with an expiry date
USA Today explains popular peptide wellness treatments and their safety concerns
USA Today explains peptides, which are popular wellness treatments, and the safety concerns they raise. The story is based only on its headline and teaser, so no specific findings or decisions are reported.
Original title: Peptides explained: Why popular wellness treatments raise safety concerns
Ginseng compound Rb1 eased signs of aging in the uterus in lab tests
Researchers found that Rb1 reduced aging signs in uterus lining cells and mouse uteruses. This does not show Rb1 helps aging uteruses in people.
Original title: Ginsenoside Rb1 alleviates uterine aging via AMPK-mediated mTOR inactivation.
A new vaccine clears aging cells in mice and may extend lifespan
Researchers made a vaccine aimed at old, worn-out cells called senescent cells. In mice, it cleared some of these cells and helped metabolism. This is early work, so it does not show the vaccine would help people.
Original title: A Bi-Adjuvant Senolytic Nanovaccine Modulating Dendritic Cell Senescence Ameliorates Aging-Related Metabolic Dysfunction.
A peptide helped older mice have more pups and improved aged egg cells
Researchers gave a peptide to older female mice and their egg cells looked healthier. It is not yet known if this would help people.
Original title: Elamipretide Rejuvenates Oocyte Quality and Restores Female Fertility During Reproductive Aging.
Mitochondrial fat in muscle may drive aging changes in mice
Scientists lowered a fat called cardiolipin in young mice and saw aging-like muscle changes. Restoring it in adult mice reversed some muscle loss and prevented early death.
Original title: Mitochondrial membrane lipid cardiolipin controls fiber-type adaptations in aging muscle via estrogen-related receptor γ.
Study plan tests a drug plus exercise for physical strength in older adults with HIV
This paper describes the plan for a trial, not its results. It does not yet tell us whether the drug and exercise help.
Original title: Tesamorelin as an Adjunct to Exercise for Improving Physical Function in HIV (TRIUMPH): a clinical trial protocol.
A peptide eased signs of aging in heart cells damaged by a cancer drug
Researchers treated heart muscle cells in a dish with a cancer drug, then a peptide called SS-31. The peptide reduced several signs of aging, but not cell cycle arrest. This was done only in lab cells, so it does not show the peptide would help people.
Original title: Mitochondrial-Targeted SS-31 Attenuates the Doxorubicin-Induced Cardiomyoblast H9C2 Cell Senescence.
Hormone replacement therapy and survival, linked to aging clocks and blood sugar
This study linked estrogen signals and hormone therapy to slower aging clock markers and lower death risk. It cannot prove hormone therapy causes longer life, and blood sugar changed the results.
Original title: Hormone replacement therapy through the lens of epigenetic clock: estrogen signals, glycemic status, and lifespan.
Cx43 protein may boost breast cancer drug response in lab tests
Researchers studied a protein called Cx43 that helps cells talk to each other. They found it may help a breast cancer drug slow tumor growth. This early work is not yet checked by other scientists, so it does not show this would help people.
Original title: Dual Role of Cx43 in Enhancing CDK4/6 Inhibitor Response and Promoting the Elimination of Therapy-Induced Senescent Tumor Cells
How middle-aged women in China see and cope with aging
Women talked about aging in many ways, including both worries and personal growth. Their views may shape how they choose to care for their health.
Original title: Perception and coping with aging among middle-aged women: a qualitative study.