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Chemotherapy-induced premature ovarian insufficiency (POI) is a major cause of infertility and hormonal imbalance in young female cancer survivors. In this study, developed a biomimetic scaffold is developed that incorporates polydeoxyribonucleotide (PDRN) and melatonin to restore ovarian function. The scaffold is designed to mimic the ovarian extracellular matrix (ECM), enhancing angiogenesis, promoting antioxidant effects, and reducing reactive oxygen species (ROS). Human embryonic stem cell-derived mesenchymal progenitor cells (hESC-MPCs) are also incorporated to further support tissue regeneration. The scaffold demonstrated strong efficacy in improving cell survival, promoting folliculogenesis, and restoring ovarian function in a chemotherapy-induced perimenopausal mouse model. Results showed that the scaffold enhanced vascularization, reduced fibrosis, and normalized hormone levels, including estrogen (E) and anti-Müllerian hormone (Amh). Additionally, the transplantation of the scaffold restored fertility rates and increased the number of offspring in treated mice. This approach presents a promising solution for improving ovarian recovery and fertility preservation in patients with chemotherapy-induced POI, offering a novel therapeutic strategy for reproductive health.
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http://dx.doi.org/10.1002/adhm.202403944 | DOI Listing |
Sci Rep
September 2025
Biochemistry Sector, Chemistry Department, Faculty of Science, Helwan University, Cairo, 11795, Egypt.
Background: Ovarian cancer (OC) is a leading cause of cancer deaths in women. Comprehensive molecular studies are required to understand OC pathogenesis. KRAS and NOXA genes are involved in tumorigenesis and disease progression.
View Article and Find Full Text PDFHum Reprod
September 2025
Boston IVF-IVIRMA Global Research Alliance, Waltham, MA, USA.
Study Question: Does a high proportion of immature oocytes impact embryo development and live birth rates in IVF-ICSI cycles?
Summary Answer: While a high proportion of immature oocytes is associated with lower blastocyst formation and reduced preimplantation genetic testing for aneuploidy (PGT-A) utilization, live birth rates remain comparable when key confounders-such as age, BMI, gonadotropin dosage, and metaphase-II (MII) count-are balanced, but cycles with a very low MII proportion resulted in fewer embryo transfers, which is quantitatively limiting, even if embryo quality appears unaffected.
What Is Known Already: Previous studies have linked a lower proportion of mature oocytes (MII) to decreased fertilization rates, abnormal embryo development, and lower pregnancy and live birth rates. However, it remains unclear whether these outcomes are due to quantitative limitations (fewer mature oocytes available) or qualitative deficiencies (intrinsic oocyte quality issues).
Curr Treat Options Oncol
September 2025
Division of Gynecologic Oncology, Department of Surgery, City of Hope National Medical Center, Duarte, CA, USA.
Ovarian cancer, particularly high-grade serous carcinoma (HGSC), remains a leading cause of mortality in gynecologic oncology. Emerging research identifies serous tubal intraepithelial carcinoma (STIC) as a precursor lesion in many HGSC cases, highlighting its role in ovarian cancer pathogenesis and prevention. Management of STIC is challenging, as there is only limited data available to guide clinical decision-making.
View Article and Find Full Text PDFNaunyn Schmiedebergs Arch Pharmacol
September 2025
Department of Medical Pharmacology, Faculty of Medicine, Minia University, Minia, 61519, Egypt.
The aim of the current study is to identify the possible protective effect of rupatadine (RUP) on ovarian ischemia reperfusion (OIR) in rats. RUP was administered in the presence and absence of OIR. Thirty-two adult Wistar albino female rats were randomly arranged into four groups: Sham, RUP (6 mg/kg/day) for 14 days, OIR and OIR + RUP groups.
View Article and Find Full Text PDFJ Sports Med Phys Fitness
September 2025
UPR 3533, Laboratory of the Metabolic Adaptations to Exercise under Physiological and Pathological Conditions (AME2P), Clermont Auvergne University, CRNH Auvergne, Clermont-Ferrand, France -
Background: Despite growing interest in women's physiology in exercise sciences, the understanding of female athletes' energy metabolism remains limited. This study aimed to analyze substrate oxidation in response to energetic stimuli in female athletes using or not hormonal contraceptives, and to determine the influence of the estradiol-to-progesterone ratio fluctuations on energy metabolism.
Methods: Body composition (dual-energy X-ray absorptiometry), energy expenditure and substrate oxidation rates (resting, low-intensity walking exercise (4 km/h), and postprandial conditions; indirect calorimetry) were assessed among 32 athletes (23±3 years) during a high-training load period, in athletes using or not hormonal contraceptives (nine and 23, respectively).