Microfluidic chips have been proved effective in mimicking different organs of human body. Simulating human ovarian follicles by microfluidic device will be useful in exploring the mechanism of folliculogenesis and related diseases. In this paper, a microfluidic chip was designed to culture a single human pre-antral follicle. Ovarian follicles were first encapsulated in 3D calcium alginate hydrogel beads and then cultured on chip and in dish under same conditions. The diameters of cultured ovarian follicles were measured, and the same amount of medium was collected from microfluidic device or dish per two days for measuring the estradiol and androgen concentrations. The results confirmed the successful growth of ovarian follicles on chip with their hormonal trends and diameters increase, which were similar to ovarian follicles cultured in dish. It is concluded that this microfluidic chip can be used to culture a single human ovarian follicle, which provides a useful tool to explore the hormonal changes and their interactions during folliculogenesis.
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http://dx.doi.org/10.3390/mi8110335 | DOI Listing |
Sci Rep
December 2024
Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
This study aimed to develop and validate a predictive model for failure to collect oocytes in the Patient-Oriented Strategies Encompassing Individualized Oocyte Number (POSEIDON) Groups 3 and 4 during their first in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycle. A retrospective analysis was conducted on patients in POSEIDON Groups 3 and 4 who underwent their first IVF/ICSI cycle at our center from January 2016 to December 2023. A total of 2,373 patients were randomly assigned to the training or validation cohort at a ratio of 6:4.
View Article and Find Full Text PDFEcotoxicol Environ Saf
December 2024
The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, China. Electronic address:
Nanoplastics (NPs) are an emerging class of pollutants. They can act as a"Trojan horse" to change the bioavailability and toxicity of heavy metals in the environment. However, research on the combined toxicity of heavy metals and NPs is scarce, especially during the critical developmental period of adolescence.
View Article and Find Full Text PDFJ Reprod Immunol
December 2024
School of Medical and Life Sciences/Reproductive &Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan Province 611137, China; Chengdu Fifth People's Hospital, Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine. Electronic address:
Backgrounds: Recent studies have found Several lncRNAs were proved differential expression in diminished ovarian reserve (DOR) patients, however, the mechanism of DOR caused by lncRNAs is still largely unclear.
Methods: High throughput sequencing was performed in ovarian GCs extracted from women with normal ovarian function and women with DOR. Bioinformation analysis was used to analyze the sequencing data and identify the differential expression of lncRNAs.
Poult Sci
December 2024
Shandong Provincial Key laboratory for Livestock Germplasm Innovation & Utilization, College of Animal Science, Shandong Agricultural University, Taian, China. Electronic address:
During ovary development, the dormant primordial follicles (PF) are stimulated and begin to develop into primary follicles (PrF), a process called follicle activation. Only activated follicles can continue to grow and release the eggs in the future, making the female animal fertile. The molecular events during PF activation are not fully understood.
View Article and Find Full Text PDFSci Rep
December 2024
Centre of Excellence in Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal. Manipal Academy of Higher Education, Manipal, 576 104, India.
Cyclophosphamide (CY) exposure is known to affect the ovary and impair fertility. Clinically, treatment is generally given over multiple doses, but research models have generally used single doses. The relative effects of administering multiple small doses of CY in the prepubertal period are not elucidated.
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