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Control of immune response in an iPSC-based allogeneic cell therapy clinical trial for Parkinson's disease

4 months ago
Because the central nervous system (CNS) is an immune-privileged organ, it requires different immunosuppression strategies for cell therapies using induced pluripotent stem cells (iPSCs) compared with ones for organ transplantations. We recently conducted the first in-human clinical trial of a cell therapy for Parkinson's disease using allogeneic iPSCs (jRCT number: jRCT2090220384). All patients were transplanted with dopaminergic neural progenitors differentiated from iPSCs (iPSC-DANs), which...
Asuka Morizane

The role of mitophagy in perioperative neurocognitive disorder: from mechanisms to implications

4 months ago
Perioperative neurocognitive disorder (PND) is a significant neurological complication in aging perioperativepatients, seriously impacting their postoperative recovery and cognition as well as quality of life. The occurrence of PND is closely related to various factors, including neuroinflammation and oxidative stress, while the exact mechanism is still unknown. Mitophagy is a specialized form of autophagy and maintains cellular homeostasis by selectively degrading damaged and dysfunctional...
Shuai Gao

Non-genetic neuromodulation with graphene optoelectronic actuators for disease models, stem cell maturation, and biohybrid robotics

4 months ago
Light can serve as a tunable trigger for neurobioengineering technologies, enabling probing, control, and enhancement of brain function with unmatched spatiotemporal precision. Yet, these technologies often require genetic or structural alterations of neurons, disrupting their natural activity. Here, we introduce the Graphene-Mediated Optical Stimulation (GraMOS) platform, which leverages graphene's optoelectronic properties and its ability to efficiently convert light into electricity. Using...
Elena Molokanova

Rewired type I IFN signaling is linked to age-dependent differences in COVID-19

4 months ago
Advanced age is the most important risk factor for severe disease or death from COVID-19, but a thorough mechanistic understanding of the molecular and cellular underpinnings is lacking. Multi-omics analysis of 164 samples from SARS-CoV-2-infected persons aged 1 to 84 years reveals a rewiring of type I interferon (IFN) signaling with a gradual shift from signal transducer and activator of transcription 1 (STAT1) to STAT3 activation in monocytes, CD4^(+) T cells, and B cells with increasing age....
Lev Petrov

The role of mitophagy in perioperative neurocognitive disorder: from mechanisms to implications

4 months ago
Perioperative neurocognitive disorder (PND) is a significant neurological complication in aging perioperativepatients, seriously impacting their postoperative recovery and cognition as well as quality of life. The occurrence of PND is closely related to various factors, including neuroinflammation and oxidative stress, while the exact mechanism is still unknown. Mitophagy is a specialized form of autophagy and maintains cellular homeostasis by selectively degrading damaged and dysfunctional...
Shuai Gao

Progressive aerobic exercise in reducing inflammation and oxidative stress markers in older adult Korean women with obesity

4 months ago
CONCLUSIONS: A 16-week program of progressive aerobic exercise effectively reduced systemic inflammation and oxidative stress in older adult women with obesity, while potentially enhancing antioxidant defense. CCL11 reduction may reflect anti-inflammatory adaptations and potential neuroprotective benefits. These findings support aerobic exercise as a non-pharmacological strategy to manage age-related physiological decline.
Suhan Koh

Sirtuins mediate the reduction of age-related oxidative damage in the cochlea under a cocoa-rich diet

4 months ago
Age-related hearing loss (ARHL) is a common condition among older adults. It has long been established that ARHL is more prevalent, is more severe, and tends to occur earlier in men than in women. A key factor contributing to ARHL is oxidative stress, which harms the inner ear cells. Sirtuins are a family of proteins that play critical roles in cellular regulation, particularly in response to stress and aging, and have demonstrated anti-aging effects. Cocoa flavonoids, due to their antioxidant...
Rosalía Fátima Heredia-Molina

Modulating biological aging with food-derived signals: a systems and precision nutrition perspective

4 months ago
Lifespan extension has not prevented age-related decline. We propose that diet acts as a molecular modulator of aging, influencing inflammation, the microbiome, and systemic resilience. Biological age markers and AI-powered multi-omics reveal actionable dietary targets, including food-derived signals and Nutrition Dark Matter. We highlight precision nutrition and the EIT Food Healthy Aging Think & Do Tank as pathways to align science, policy, and practice for healthy aging.
Carsten Carlberg

Induced somatic mutation accumulation during skeletal muscle regeneration reduces muscle strength

4 months ago
Aging is associated with a progressive decline in tissue function and regenerative capacity, partly due to genomic instability, one of the hallmarks of aging^(1,2). Genomic instability encompasses DNA damage and the accumulation of somatic mutations in post-zygotic cells, yet the specific impact of these mutations on age-related tissue dysfunction remains poorly understood. To address this, we developed a mouse model in which genomic instability was induced specifically in muscle progenitor...
Peter Vrtačnik

Remote monitoring in older adults with cancer, opportunities and challenges: a narrative review

4 months ago
CONCLUSION: Remote monitoring technologies hold promise for enhancing symptom and functional assessment in older adults with cancer, supporting age-appropriate care. However, robust geriatric-specific evidence is lacking. Future research should address technological challenges, validate clinical thresholds, and assess long-term outcomes. Integrating these tools within multidisciplinary frameworks can improve care delivery throughout the cancer journey.
Evelyne Liuu

Spatiotemporal profiling reveals the impact of caloric restriction in the aging mammalian brain

4 months ago
Caloric restriction (CR) is a well-studied intervention that extends lifespan and slows cognitive decline across species, yet the specific cell populations and molecular pathways involved remain elusive. In this study, we profiled >500,000 cells from 36 control and CR mouse brains across three age groups with EasySci single-nucleus transcriptomics and performed imaging-free IRISeq spatial transcriptomics on twelve brain sections from CR and control aged mice. We thereby explored the impact of CR...
Zehao Zhang