Showing 401 - 420 results of 421 for search '"senescence"', query time: 0.05s Refine Results
  1. 401

    Chemical Activation of the Hypoxia-Inducible Factor Reversibly Reduces Tendon Stem Cell Proliferation, Inhibits Their Differentiation, and Maintains Cell Undifferentiation by Alessandra Menon, Pasquale Creo, Marco Piccoli, Sonia Bergante, Erika Conforti, Giuseppe Banfi, Pietro Randelli, Luigi Anastasia

    Published 2018-01-01
    “…However, adult stem cells are usually limited in number and difficult to be expanded in vitro, and they usually tend to quickly lose their potency with passages, as they differentiate and become senescent. Culturing stem cells under reduced oxygen tensions (below 21%) has been proposed as a tool to increase cell proliferation, but many studies reported opposite effects. …”
    Get full text
    Article
  2. 402
  3. 403

    Autoserum: An Optimal Supplement for Bone Marrow Mesenchymal Stem Cells of Liver-Injured Rats by Qinglin Zhang, Xun Sun, Jianxun Ding, Ping He, Yujia Liu, Hongjing Cheng, Changlin Zhou, Xiangwei Meng

    Published 2015-01-01
    “…The results showed that BMSCs cultured with autoserum or allogeneic serum exhibited better MSC-specific morphology, lower rate of cell senescent, and higher proliferation kinetics than those with FBS. …”
    Get full text
    Article
  4. 404

    Increased matrix metalloproteinase-1 expression by coexposure to UVA and cigarette sidestream smoke and contribution of histone acetylation by Ryoma Ito, Yukako Komaki, Yuko Ibuki

    Published 2025-01-01
    “…The basal expression of MMP-1 was higher in senescent cells than in normal cells, with a pronounced increase after coexposure to UVA and CSS. …”
    Get full text
    Article
  5. 405

    Intraventricular Neurilemmoma (Schwannoma): Shall GFAP Immunostaining Be Regarded as a Histogenetical Tag or as a Mere Histomimetical Trait? by Miguel Fdo. Salazar, Martha Lilia Tena Suck, Daniel Rembao Bojórquez, Citlaltepetl Salinas Lara

    Published 2016-01-01
    “…Verocay bodies were not present but vessel hyalinisation, pericellular reticulin, and senescent atypia were observed. The immunoperoxidase reactions were also consistent with neurilemmal differentiation; however, glial fibrillary acidic protein expression was widespread and unexpectedly seen. …”
    Get full text
    Article
  6. 406

    The insertion of an ancestral gene in Nicotiana tabacum plants reduces free radicals during saline irrigation by Claudia Marissa Calderón Torres, Victoria Abril Mancilla Galván, Miguel Murguía Romero

    Published 2025-01-01
    “…Seedlings of transgenic and wild type Nicotiana tabacum germinated in standard conditions were divided into two irrigation groups, with 100 mM of NaCl and with tap water; and, after 50 days, in the non-senescent adult leaves of the plants, the total chlorophyll a and b and the total chlorophyll content were determined by spectrophotometry and the reactive oxygen species production (*OH, 1O2, H2O2) was quantified by a 2',7'-dichlorodihydrofluorescein assay. …”
    Get full text
    Article
  7. 407

    Inflammation and ER Stress Downregulate BDH2 Expression and Dysregulate Intracellular Iron in Macrophages by Susu M. Zughaier, Brandon B. Stauffer, Nael A. McCarty

    Published 2014-01-01
    “…Macrophages play a very important role in host defense and in iron homeostasis by engulfing senescent red blood cells and recycling iron. Hepcidin is the master iron regulating hormone that limits dietary iron absorption from the gut and limits iron egress from macrophages. …”
    Get full text
    Article
  8. 408

    Phenotype of Hypertension-altered Waist and its Association with the Components of Metabolic Changes in Gerontics by Giorgiet Galiano Guerra, Yamila Lastre Diéguez, Grettel Galiano Guerra, Dailenys García Céspedes, Yordanis Alberto Fonseca Atencio, Ariel Sosa Remón

    Published 2020-06-01
    “…The components of the metabolic syndrome with higher association with senescents affected by the endocrinopathy were dyslipidemia followed by glycaemia disturbances. …”
    Get full text
    Article
  9. 409

    The Influence of Aging on the Regenerative Potential of Human Adipose Derived Mesenchymal Stem Cells by Monika Marędziak, Krzysztof Marycz, Krzysztof A. Tomaszewski, Katarzyna Kornicka, Brandon Michael Henry

    Published 2016-01-01
    “…Compared to younger cells, aged hASCs had decreased proliferation rates, decreased chondrogenic and osteogenic potential, and increased senescent features. A shift in favor of adipogenic differentiation with increased age was also observed. …”
    Get full text
    Article
  10. 410

    Molecular and Cellular Mechanisms of Immunosenescence: Modulation Through Interventions and Lifestyle Changes by Luca Pangrazzi, Andreas Meryk

    Published 2024-12-01
    “…At the cellular level, immunosenescence manifests as decreased production of naive T and B cells, accumulation of memory and senescent cells, thymic involution, and dysregulated cytokine production. …”
    Get full text
    Article
  11. 411

    Comprehensive Review of Biological Functions and Therapeutic Potential of Perilla Seed Meal Proteins and Peptides by Yangfan Hu, Huan Luo, Vasudeva Reddy Netala, He Li, Zhijun Zhang, Tianyu Hou

    Published 2024-12-01
    “…Perilla peptides exhibit robust anti-aging properties by activating the Nrf2 pathway, enhancing cellular antioxidant capacity, and supporting skin health through the promotion of keratinocyte growth, maintenance of collagen integrity, and reduction in senescent cells. Additionally, they demonstrate antidiabetic activity by inhibiting α-amylase and α-glucosidase. …”
    Get full text
    Article
  12. 412

    Bioactive Anti-Aging Substances: Geroprotectors by Anna D. Fokina, Anna D. Vesnina, Anna S. Frolova, Darya Yu. Chekushkina, Larisa A. Proskuryakova, Larisa M. Aksenova

    Published 2024-05-01
    “…These biologically active substances prevent oxidative stress, accumulation of lipofuscin, and senescent cells. The most effective anti-aging agents come from Vitis amurensis, Rhodiola rosea, Schisandra chinensis, Galega officinalis, Eleutherococcus senticosus, Withania somnifera, and Panax ginseng.…”
    Get full text
    Article
  13. 413

    Transgenic plants as genetic models for studying functions of plant genes by A. V. Kochetov, V. K. Shumny

    Published 2016-09-01
    “…It was believed that S-like RNase functions concern mainly phosphate remobilization from senescent organs. However, expression patterns of some genes coding for S-like RNases were similar to some pathogen-responsive genes (both local and systemic induction after wounding or pathogen inoculation). …”
    Get full text
    Article
  14. 414

    Outer retina micro-inflammation is driven by T cell responses prior to retinal degeneration in early age-related macular degeneration by Lucas Stürzbecher, Lucas Stürzbecher, Lucas Stürzbecher, Lucas Stürzbecher, Hendrik Bartolomaeus, Hendrik Bartolomaeus, Hendrik Bartolomaeus, Hendrik Bartolomaeus, Theda U. P. Bartolomaeus, Theda U. P. Bartolomaeus, Theda U. P. Bartolomaeus, Theda U. P. Bartolomaeus, Sylvia Bolz, Andjela Sekulic, Marius Ueffing, Marius Ueffing, Simon J. Clark, Simon J. Clark, Simon J. Clark, Nadine Reichhart, Sergio Crespo-Garcia, Nicola Wilck, Nicola Wilck, Nicola Wilck, Nicola Wilck, Olaf Strauß

    Published 2025-02-01
    “…Importantly, the activation of T cells found at early AMD-like stages prior to degeneration possessed long-lasting cytotoxic properties and adopted typical features of senescent immune cells. T cells were intimately associated with the RPE, suggesting transmigration and participating in local micro-inflammation.DiscussionOur data support that activation and accumulation of memory T cells can be considered as a hallmark of early AMD, and that adaptive immunosenescence likely to contribute to the chronic inflammation associated with RPE damage and the progression to large lesions as seen in GA.…”
    Get full text
    Article
  15. 415

    Targeting EP2 Receptor Improves Muscle and Bone Health in Dystrophin<sup>−/−</sup>/Utrophin<sup>−/−</sup> Double-Knockout Mice by Xueqin Gao, Yan Cui, Greg Zhang, Joseph J. Ruzbarsky, Bing Wang, Jonathan E. Layne, Xiang Xiao, Johnny Huard

    Published 2025-01-01
    “…Treatment of DKO-Hom mice with the EP2 antagonist PF04418948 for 2 weeks increased body weight and reduced HO and muscle pathology by decreasing both total macrophages (CD68<sup>+</sup>) and senescent macrophages (CD68<sup>+</sup>P21<sup>+</sup>), while increasing endothelial cells (CD31<sup>+</sup>). …”
    Get full text
    Article
  16. 416

    Tracing microbial community across endophyte-to-saprotroph continuum of Cinnamomum camphora (L.) Presl leaves considering priority effect of endophyte on litter decomposition by Jiamin Xiao, Zaihua He, Xingbing He, Yonghui Lin, Xiangshi Kong

    Published 2025-01-01
    “…Endophytes typically coexist with plants in symbiosis and transition into the saprobic system as plant tissues senesce, participating in the decomposition process of litter. …”
    Get full text
    Article
  17. 417

    Vieillesse, savoir et genre. Réflexions sur les discours consacrés à la vieillesse dans l'Antiquité by Beate Wagner-Hasel

    Published 2011-12-01
    “…Les commentaires sur les figures mythologiques de Tithon et de la Sybille, êtres hybrides sénescents, établissent en outre une relation étroite entre vieillesse et savoir. …”
    Get full text
    Article
  18. 418

    Ambient pollution at hip fracture units and impact on mortality and post-operative delirium: A hormetic effect? by Chika Edward Uzoigwe, Rana Muhammad Anss Bin Qadir, Ahmed Daoub

    Published 2024-01-01
    “…Using the UK National Hip Fracture Database and Defra Data (Department of Environmental, Food & Rural Affairs) we determined the annual mean PM2.5 PM10 and nitrogen dioxide exposure for all the units treating senescent hip fracture patients. We correlated these ambient pollutant levels with all-cause 30-day mortality and incidence of post-operative delirium for hip fracture patients. …”
    Get full text
    Article
  19. 419
  20. 420

    The Pathogenic Role of Expanded CD8⁺CD28<sup>null</sup> Angiogenic T Cells in ANCA-Associated Vasculitis by Haomiao Shen, Jinlin Miao, Haoyang Sun, Kui Zhang, Renli Liu, Zichao Li, Leyang Zhang, Peiyan Zhang, Jiawei Wang, Bei Zhang, Longyu Chen, Zhaohui Zheng, Ping Zhu

    Published 2024-12-01
    “…<b>Objectives:</b> Angiogenic T cells (Tang) are crucial in promoting angiogenesis, with the loss of CD28 serving as a marker for highly differentiated and senescent T cells. This study aims to investigate the characteristics and potential roles of CD8<sup>+</sup>CD28<sup>null</sup> Tang in patients with ANCA-associated vasculitis (AAV). …”
    Get full text
    Article