The ovary is an important organ for women to maintain reproductive and endocrine functions. Ovarian aging can lead to female reproductive aging, which is a key factor causing rapid aging of the female body. Umbilical cord-derived MSCs (UC-MSCs) play a therapeutic role in various degenerative diseases. Dehydroepiandrosterone (DHEA) is widely used in the treatment of reversing oocyte quality. However, it is unclear whether UC-MSCs combined with DHEA supplementation can improve ovarian senescence in naturally aging mice. To address this question, we studied the influence of the combination of human UC-MSCs (hUC-MSCs) and DHEA on ovarian morphology and function in naturally aging mice. The results showed a significant augmentation in the number of primary follicles, as well as a significant upregulation of estradiol (E2), follicle-stimulating hormone (FSH), and anti-Mullerian hormone (AMH) hormone levels, and a significant increase in survival rate in naturally aging mice treated by hUC-MSCs and DHEA. Moreover, the combination of hUC-MSCs and DHEA significantly reduced the reactive oxygen species (ROS) level and downregulated the expression levels of proinflammatory factors IL-6, IL-18, and TNF-. Furthermore, the PI3K/AKT/mTOR pathway was inhibited. Conclusively, the combination therapy of hUC-MSC + DHEA contributed to restore ovarian function in aging mice and extend their lifespan by restoring hormone levels and inhibiting inflammatory factors.
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http://dx.doi.org/10.1155/2024/3100942 | DOI Listing |
Immun Ageing
December 2024
Department of Immunology, Center of Immuno-molecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China.
The increased incidence of inflammatory diseases, infectious diseases, autoimmune disorders, and tumors in elderly individuals is closely associated with several well-established features of immunosenescence, including reduced B cell genesis and dampened immune responses. Recent studies have highlighted the critical role of dual receptor lymphocytes in tumors and autoimmune diseases. This study utilized shared data generated through scRNA-seq + scBCR-seq technology to investigate the presence of dual receptor-expressing B cells in the peritoneum of mouse and peripheral blood of healthy volunteers, and whether there are age-related differences in dual receptor B cell populations.
View Article and Find Full Text PDFCardiovasc Diabetol
December 2024
Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Ave, s7-119, New York, NY, USA.
Background: Long-term consumption of Western Diet (WD) is a well-established risk factor for the development of cardiovascular disease (CVD); however, there is a paucity of studies on the long-term effects of WD on the pathophysiology of CVD and sex-specific responses.
Methods: Our study aimed to investigate the sex-specific pathophysiological changes in left ventricular (LV) function using transthoracic echocardiography (ECHO) and LV tissue transcriptomics in WD-fed C57BL/6 J mice for 125 days, starting at the age of 300 through 425 days.
Results: In female mice, consumption of the WD diet showed long-term effects on LV structure and possible development of HFpEF-like phenotype with compensatory cardiac structural changes later in life.
Bone
December 2024
Neurobehavioral Pharmacology Laboratory, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India. Electronic address:
Medium chained triglycerides (MCT) ketogenic diet is being extensively investigated for its neuroprotective effects against adverse effects associated with aging and neurodegenerative disorders. Aging is a common risk factor for the development of both osteoporosis and neurological disorders. Hence, suppression of aging and age-related neurodegeneration might contribute to delaying skeletal aging.
View Article and Find Full Text PDFMicrob Pathog
December 2024
Departamento de Biologia Animal (DBA), Programa de Pós-Graduação em Biologia Animal (PPGBA), Universidade Federal de Viçosa (UFV), Viçosa, 36570-900, Minas Gerais, Brazil.
Chronic inflammation, oxidative stress, and DNA damage are observed in schistosomiasis and premature aging. However, the potential of these events to trigger stress-induced premature senescence (SIPS) throughout schistosomiasis progression remains overlooked, especially in response to the first-line pharmacological treatment. Thus, we investigated the relationship between oxidative stress and SIPS sentinel markers in untreated Schistosoma mansoni-infected mice and those receiving praziquantel (Pz)-based reference treatment.
View Article and Find Full Text PDFDev Cell
December 2024
Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital Cancer Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA. Electronic address:
Lymphatic muscle cells (LMCs) within the wall of collecting lymphatic vessels exhibit tonic and autonomous phasic contractions, which drive active lymph transport to maintain tissue-fluid homeostasis and support immune surveillance. Damage to LMCs disrupts lymphatic function and is related to various diseases. Despite their importance, knowledge of the gene transcriptional signatures in LMCs and how they relate to lymphatic function in normal and disease contexts is largely missing.
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