نتایج جستجو برای: cell aging

تعداد نتایج: 1771335  

Journal: :Energies 2021

Nowadays, many aircraft manufacturers are working on new airplanes to reduce the environmental footprint and therefore meet greenhouse gas reduction targets. The concept of more electric is one solutions achieve this goal. For architecture, several electrical devices used in order supply propulsive non-propulsive functions. This paper focuses sizing a direct hybridization system function an air...

Journal: :Current Biology 2014
Chuankai Zhou Rong Li Brian K. Kennedy

A yeast mother cell progressively ages with each cell division and yet produces daughter cells that are largely rejuvenated, suggesting that mothers accumulate aging factors. Two current studies address this issue by identifying mother-specific long-lived proteins and, in the case of Pma1, evidence that asymmetric distribution drives mother cell aging.

Journal: :Aging cell 2008
Rui Zhao Yang Xuan Xinghua Li Rongwen Xi

Adult stem cells are important in replenishing aged cells to maintain tissue homeostasis. Aging in turn may exert profound effects on stem cell's regenerative potential, but to date the mechanisms of such stem cell aging are poorly understood, and it is not clear to what extent stem cell aging contributes to tissue or organ aging. Here we show in female Drosophila that germline stem cell (GSC) ...

Journal: :Food Science and Human Wellness 2023

Cellular senescence is the results of aging and age-related diseases, development anti-aging methods may improve health extend longevity. The natural flavonol fisetin has been shown to antagonize in vitro increases longevity vivo, but poor water solubility limited bioavailability. In this study, a food-grade senescent cell-targeted delivery system for was developed based on whey prot...

2018
Adeline Mergoud dit Lamarche Laurent Molin Laura Pierson Marie‐Christine Mariol Jean‐Louis Bessereau Kathrin Gieseler Florence Solari

Aging is commonly defined as the loss of global homeostasis, which results from progressive alteration of all organs function. This model is currently challenged by recent data showing that interventions that extend lifespan do not always increase the overall fitness of the organism. These data suggest the existence of tissue-specific factors that regulate the pace of aging in a cell-autonomous...

Journal: :Journal of Investigative Dermatology 2023

Skin aging, represented by wrinkles, is caused a decrease in the dermal components such as collagen, elastin, and fibroblast. Extracellular vesicles (EVs) mediate cell-to-cell communication via cargo biomolecules cell-free manner. In previous studies, we produced mesenchymal stem cell (MSC)-derived cargo-regulated EVs through various priming methods reported that these affect progression of dis...

2016
Ian James Martins Edith Cowan

Appetite regulation by nutritional intervention is required early in life that involves the anti-aging gene Sirtuin 1 (Sirt 1) with Sirt 1 maintenance of other cellular anti-aging genes involved in cell circadian rhythm, senescence and apoptosis. Interests in anti-aging therapy with appetite regulation improve an individual’s survival to metabolic disease induced by gene-environment interaction...

2016
Pamela Dakik Vladimir I. Titorenko

Studies employing the budding yeast Saccharomyces cerevisiae as a model organism have provided deep insights into molecular mechanisms of cellular and organismal aging in multicellular eukaryotes and have demonstrated that the main features of biological aging are evolutionarily conserved. Aging in S. cerevisiae is studied by measuring replicative or chronological lifespan. Yeast replicative ag...

2017
Paula Fernandez Sebastián Moschen Norma Paniego Ruth A. Heinz

Journal: :Journal of cell science 1982
B Azzarone A Macieira-Coelho

Human adult fibroblasts from the papillary layer of the skin showed increased survival in vitro when compared to reticular fibroblasts from the same biopsy. Fibroblasts of the papillary layer were also analysed in vitro to study the kinetics of proliferation between subcultivation and resting phase. It was found that the growth fraction and maximum cell densities vary as a function of the initi...

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