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401
Chemical Activation of the Hypoxia-Inducible Factor Reversibly Reduces Tendon Stem Cell Proliferation, Inhibits Their Differentiation, and Maintains Cell Undifferentiation
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. …”
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402
Distinct immune cell infiltration patterns in pancreatic ductal adenocarcinoma (PDAC) exhibit divergent immune cell selection and immunosuppressive mechanisms
Published 2025-02-01“…Using TCR data, we see the largest clonal expansions in CD8 effector memory, senescent cells, and highly activated regulatory T cells which are induced within the tumour from naïve cells. …”
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403
Autoserum: An Optimal Supplement for Bone Marrow Mesenchymal Stem Cells of Liver-Injured Rats
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. …”
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404
Increased matrix metalloproteinase-1 expression by coexposure to UVA and cigarette sidestream smoke and contribution of histone acetylation
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. …”
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405
Intraventricular Neurilemmoma (Schwannoma): Shall GFAP Immunostaining Be Regarded as a Histogenetical Tag or as a Mere Histomimetical Trait?
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. …”
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406
The insertion of an ancestral gene in Nicotiana tabacum plants reduces free radicals during saline irrigation
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. …”
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407
Inflammation and ER Stress Downregulate BDH2 Expression and Dysregulate Intracellular Iron in Macrophages
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. …”
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408
Phenotype of Hypertension-altered Waist and its Association with the Components of Metabolic Changes in Gerontics
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. …”
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409
The Influence of Aging on the Regenerative Potential of Human Adipose Derived Mesenchymal Stem Cells
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. …”
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410
Molecular and Cellular Mechanisms of Immunosenescence: Modulation Through Interventions and Lifestyle Changes
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. …”
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411
Comprehensive Review of Biological Functions and Therapeutic Potential of Perilla Seed Meal Proteins and Peptides
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. …”
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412
Bioactive Anti-Aging Substances: Geroprotectors
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.…”
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413
Transgenic plants as genetic models for studying functions of plant genes
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). …”
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414
Outer retina micro-inflammation is driven by T cell responses prior to retinal degeneration in early age-related macular degeneration
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.…”
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415
Targeting EP2 Receptor Improves Muscle and Bone Health in Dystrophin<sup>−/−</sup>/Utrophin<sup>−/−</sup> Double-Knockout Mice
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>). …”
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416
Tracing microbial community across endophyte-to-saprotroph continuum of Cinnamomum camphora (L.) Presl leaves considering priority effect of endophyte on litter decomposition
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. …”
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417
Vieillesse, savoir et genre. Réflexions sur les discours consacrés à la vieillesse dans l'Antiquité
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. …”
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418
Ambient pollution at hip fracture units and impact on mortality and post-operative delirium: A hormetic effect?
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. …”
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419
Life history, reproductive, and demographic parameters for bottlenose dolphins (Tursiops truncatus) in Sarasota Bay, Florida
Published 2025-02-01“…Ten percent of females were considered to be reproductively senescent, having gone >13 years without producing a calf. …”
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420
The Pathogenic Role of Expanded CD8⁺CD28<sup>null</sup> Angiogenic T Cells in ANCA-Associated Vasculitis
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). …”
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