ZygotePub Date : 2024-11-07DOI: 10.1017/S096719942400039X
Allana Maria Freire Leitão, Bianca Regia Silva, Efigênia C Barbalho, Lais R M Paulino, Francisco das Chagas Costa, Fabricio Sousa Martins, Jose Roberto V Silva
{"title":"The role of L-carnitine in the control of oxidative stress and lipid β-oxidation during <i>in vitro</i> follicle growth, oocyte maturation, embryonic development and cryopreservation: a review.","authors":"Allana Maria Freire Leitão, Bianca Regia Silva, Efigênia C Barbalho, Lais R M Paulino, Francisco das Chagas Costa, Fabricio Sousa Martins, Jose Roberto V Silva","doi":"10.1017/S096719942400039X","DOIUrl":"10.1017/S096719942400039X","url":null,"abstract":"<p><p>L-carnitine has an important role in the control of oxidative stress and lipid β-oxidation during <i>in vitro</i> culture and cryopreservation of ovarian follicles, oocytes and embryos. This substance balances the acetyl-CoA/CoA ratio, maintains glucose metabolism and increases energy production in mitochondria. It also plays a key role in reducing endoplasmic reticulum stress, by transferring palmitate to mitochondria or eliminating it to avoid toxicity. By eliminating reactive oxygen species, L-carnitine increases the percentages of mature oocytes with uniform mitochondrial distribution and improves embryo post-thaw cryotolerance. Therefore, L-carnitine controls lipid β-oxidation and oxidative stress during <i>in vitro</i> culture of ovarian follicles, oocyte maturation, embryonic development and cryopreservation.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZygotePub Date : 2024-11-05DOI: 10.1017/S0967199424000388
Ecem Yildirim, Tugce Onel, Sami Agus, Elif Gunalan, Bayram Yilmaz, Mehmet Serif Aydin, Aylin Yaba
{"title":"The effect of rapamycin treatment on mouse ovarian follicle development in dehydroepiandrosterone-induced polycystic ovary syndrome mouse model.","authors":"Ecem Yildirim, Tugce Onel, Sami Agus, Elif Gunalan, Bayram Yilmaz, Mehmet Serif Aydin, Aylin Yaba","doi":"10.1017/S0967199424000388","DOIUrl":"https://doi.org/10.1017/S0967199424000388","url":null,"abstract":"<p><p>Polycystic ovary syndrome (PCOS) is a complex reproductive and endocrine disorder affecting 5-10% of women of reproductive age, but the pathophysiology of PCOS still remains unknown. Here, the aim of our study was to analyze the effects of rapamycin treatment that may regulate impaired hormonal levels and folliculogenesis in dehydroepiandrosterone (DHEA)-treated PCOS mouse. We hypothesized that rapamycin may ameliorate the negative effects of PCOS in DHEA-induced PCOS mouse model. The target of rapamycin (TOR) gene product is a serine/threonine kinase that has been implicated in the control of cell growth, proliferation and autophagy, and rapamycin is a potent inhibitor of mTORC1 pathway. In this study, for the first time, mTORC1 and activation products are presented at protein and mRNA levels after rapamycin treatment in DHEA-induced PCOS mouse ovary. We showed that rapamycin treatment may regulate follicular development, hormonal levels and provide ovulation in DHEA-induced PCOS mouse. Additionally, we assessed decreased primordial follicle reserve, increased number of primary and secondary follicles, corpus luteum structure forms again after 10 days of rapamycin treatment. This study presented here suggests rapamycin treatment regulates hormonal phenotype and folliculogenesis in the ovary and also mTOR signalling pathway in granulosa cells of DHEA-induced PCOS mouse ovary which may have potential to attenuate understanding the mechanism of dominant follicle selection and anovulatory infertility.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142577039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZygotePub Date : 2024-10-30DOI: 10.1017/S0967199424000340
Yan Huang, Runxin Gan, Min Zhang, Dewei Lin, Yi Cheng, Xinyu Guo
{"title":"Treatment of human sperm with GYY4137 increases sperm motility and resistance to oxidative stress.","authors":"Yan Huang, Runxin Gan, Min Zhang, Dewei Lin, Yi Cheng, Xinyu Guo","doi":"10.1017/S0967199424000340","DOIUrl":"https://doi.org/10.1017/S0967199424000340","url":null,"abstract":"<p><p>Hydrogen sulfide (H<sub>2</sub>S) has been shown to play a significant role in oxidative stress across various tissues and cells; however, its role in sperm function remains poorly understood. This study aimed to investigate the protective effect of GYY4137, a slow-releasing H<sub>2</sub>S compound, on sperm damage induced by H<sub>2</sub>O<sub>2</sub>. We assessed the effects of GYY4137 on motility, viability, lipid peroxidation and caspase-3 activity in human spermatozoa in vitro following oxidative damage mediated by H<sub>2</sub>O<sub>2</sub>. Spermatozoa from 25 healthy men were selected using a density gradient centrifugation method and cultured in the presence or absence of 10 μM H<sub>2</sub>O<sub>2</sub>, followed by incubation with varying concentrations of GYY4137 (0.625-2.5 μM). After 24 h of incubation, sperm motility, viability, lipid peroxidation, and caspase-3 activity were evaluated. The results indicated that H<sub>2</sub>O<sub>2</sub> adversely affected sperm parameters, reducing motility and viability, while increasing oxidative stress, as evidenced by elevated lipid peroxidation and caspase-3 activity. GYY4137 provided dose-dependent protection against H<sub>2</sub>O<sub>2</sub>-induced oxidative stress (OS). We concluded that supplementation with GYY4137 may offer antioxidant protection during in vitro sperm preparation for assisted reproductive technology.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142547969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZygotePub Date : 2024-10-29DOI: 10.1017/S0967199424000376
Manoj Donadkar, Brijesh Kumar, Sanjay Kumar Singh, Pradeep Chandra, Pradeep Dangi, Mohan Gawai, Amala Jackson, Nancy Jasrotia, Shweta Sharma, Vikrant Chouhan, M K Patra, Meraj Haider Khan
{"title":"Morpho-molecular evaluation for developmental competence of oocytes retrieved through transvaginal ovum pick-up from FSH-stimulated Tharparkar donor cows (<i>Bos indicus</i>).","authors":"Manoj Donadkar, Brijesh Kumar, Sanjay Kumar Singh, Pradeep Chandra, Pradeep Dangi, Mohan Gawai, Amala Jackson, Nancy Jasrotia, Shweta Sharma, Vikrant Chouhan, M K Patra, Meraj Haider Khan","doi":"10.1017/S0967199424000376","DOIUrl":"10.1017/S0967199424000376","url":null,"abstract":"<p><p>The study was conducted on indigenous Tharparkar cow (<i>Bos indicus</i>) to evaluate FSH stimulation on follicular attributes, oocyte recovery and morpho-molecular developmental competence parameters concerning oocyte quality. A total of 20 OPU sessions were performed, which included 10 sessions in each FSH stimulated at the dose of 130 µg divided into four sub-doses and non-stimulated. Findings on the size of follicles having ≥6 mm showed a significantly higher, however an opposite trend was observed in the case of smaller sized follicle (<6 mm) between stimulated and non-stimulated respectively. The stimulated cows had a significantly higher number as well as the percentage of oocytes of Grade A, having a diameter ≥120 µm and BCB<sup>+VE</sup> as compared to the non-stimulated cows. The relative mRNA expression profile of GDF9, BMP15, PCNA and BCL-2 genes was higher and BAX was lower in the FSH-stimulated cow. These results indicated that FSH stimulation before OPU in <i>Bos indicus</i> cows has a significant impact on follicle size, oocyte yield, recovery, and their quality with respect to COC's, diameter and BCB<sup>+VE</sup> oocytes. Further, a significant increase in the relative mRNA expression levels of GDF9, BMP15 and PCNA genes in the FSH-stimulated group suggests that FSH plays a key role in modulating the expression of these important candidate genes and thus influencing oocyte quality. The higher mRNA expression of BCL-2 genes and concomitantly lower expression of BAX gene in FSH Stimulated cows indicates the protective role of these genes and preventing programmed cell death and thus promoting cell survival, quality and embryo development.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142523159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Control of sperm penetration using stereumamide A derived from <i>Trichaptum fuscoviolaceum</i> in the <i>in vitro</i> fertilization of pig oocytes.","authors":"Young-Joo Yi, Yoon-Ju Lee, Adikari Arachchige Dilki Indrachapa Adikari, Bong-Sik Yun","doi":"10.1017/S0967199424000327","DOIUrl":"https://doi.org/10.1017/S0967199424000327","url":null,"abstract":"<p><p>Fungal metabolites are known to have potent and diverse properties such as antiviral, antidiabetic, antitumour, antioxidant, free radical scavenging, and antibacterial effects which can be utilized to treat diseases. In this study, we investigated the functional activity of stereumamide A (StA) derived from a culture broth of <i>Trichaptum fuscoviolaceum</i> during the <i>in vitro</i> fertilization (IVF) of pig oocytes, to determine its effects on sperm penetration. Oocytes matured <i>in vitro</i> were fertilized in the absence or presence of varying concentrations of StA (0-50 μg/ml StA). When StA was directly added into the IVF medium, significantly lower fertilization rates were seen with the 20 or 50 μg/ml StA (2.0-17.5%) treatments compared with those of 10 μg/ml StA or the controls (60.9-62.3%), whereas StA had no influence on the survival of oocytes and spermatozoa throughout the IVF process. For evaluating the control of sperm entry, mature oocytes were pre-incubated in a medium containing 20 μg/ml StA for 1 h, and then IVF was subsequently performed. The incidence of polyspermy was significantly reduced when oocytes were pre-incubated with StA (15.0% <i>vs.</i> 50.4-57.5% in controls). In conclusion, sperm penetration was inhibited in the medium in the presence of StA during IVF, while StA did not affect sperm motility and fertility competence. Fertilization was controlled when mature oocytes were incubated with StA prior to IVF, suggesting the possible use of the fungal metabolite in assisted reproductive technology for humans and animals.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142509283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZygotePub Date : 2024-10-24DOI: 10.1017/S0967199424000364
Tania J Porras-Gómez, Norma Moreno-Mendoza
{"title":"Identification of the proliferative activity of germline progenitor cells in the adult ovary of the bat <i>Artibeus jamaicensis</i>.","authors":"Tania J Porras-Gómez, Norma Moreno-Mendoza","doi":"10.1017/S0967199424000364","DOIUrl":"https://doi.org/10.1017/S0967199424000364","url":null,"abstract":"<p><p>Until a few years ago, it was assumed that oocyte renewal did not take place in the ovary of adult organisms; however, the existence of germline progenitor cells (GPCs), which renew the ovarian follicular reserve, has now been documented in mammals. Specifically, in the adult ovary of bats, the presence of cells located in the cortical region with characteristics similar to GPCs, called adult cortical germ cells (ACGC), has been observed. One of the requirements that a GPC must fulfil is to be able to proliferate mitotically, so the evaluation of cell proliferation in ACGC is of utmost importance in order to be able to relate them to a parental lineage. Currently, there are several methods to determine cell proliferation, including BrdU labelling or the use of endogenous proliferation markers. Thus, the aim of this work was to evaluate the proliferative activity of ACGC in the adult ovary of the bat <i>Artibeus jamaicensis</i>, using different proliferation markers and correlating these with the protein expression of the transcription factor Oct4 and the germ line marker Ddx4. We found that the expression pattern of the proliferation markers BrdU, PCNA, Ki-67 and pH3 occurs at different times of the cell cycle, so co-localization of two or more of these markers allows us to identify proliferating cells. This allowed us to identify ACGC with proliferative capacity in the adult ovary of <i>A. jamaicensis</i>, suggesting that GPCs renew the follicle reserve during the adult life of the organism.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142509296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZygotePub Date : 2024-10-21DOI: 10.1017/S0967199424000261
Ali Cihan Taskin, Ahmet Kocabay, Seref Gul, Gizem Nur Sahin, Sercin Karahuseyinoglu, I Halil Kavakli, Ibrahim Sogut
{"title":"Boric acid supplementation promotes the development of <i>in vitro</i>-produced mouse embryos by related pluripotent and antioxidant genes.","authors":"Ali Cihan Taskin, Ahmet Kocabay, Seref Gul, Gizem Nur Sahin, Sercin Karahuseyinoglu, I Halil Kavakli, Ibrahim Sogut","doi":"10.1017/S0967199424000261","DOIUrl":"https://doi.org/10.1017/S0967199424000261","url":null,"abstract":"<p><p>Boric acid (BA) is an important mineral for plants, animals and humans that assists metabolic function and has both positive and negative effects on biological systems. The present study aimed to investigate the effects of different concentrations of BA added to the culture media, the quality and <i>in vitro</i> development potential of mouse embryos. Superovulated C57Bl6/6j female mice were sacrificed ∼18 hours after human chorionic gonadotropin (hCG) injection. Single-cell-stage embryos were collected from the oviduct, divided into experiment groups and cultured in embryo medium with supplemented BA+ in 5% CO<sub>2</sub> at 37 °C until 96 hours at the blastocyst stage. The blastocyst development rates of 0, 1.62 × 10<sup>-1</sup>, 1.62 × 10<sup>-2</sup>, 1.62 × 10<sup>-3</sup> and 1.62 × 10<sup>-4</sup> µM BA were 51.52%, 73.47%, 77.36% and 81.13%, respectively. The <i>in vitro</i> development rates were significantly higher in the 1.62 × 10<sup>-3</sup> (<i>p < 0.05</i>) and 1.62 × 10<sup>-4</sup> µM BA groups than in the control group (<i>p < 0.001</i>). These results indicated that low BA doses influenced embryo development by positively affecting <i>in vitro</i> development rates, embryo cell numbers, biochemical parameters and development at the molecular level by pluripotent and antioxidant genes. Therefore, BA seems to play an important role on <i>in vitro</i> embryo development.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Genomic and transcriptomic evaluations of infertile or subfertile Arunachali yak sperm.","authors":"Pranab Jyoti Das, Aneet Kour, Jyotika Bhati, Dwijesh Chandra Mishra, Mihir Sarkar","doi":"10.1017/S0967199424000194","DOIUrl":"https://doi.org/10.1017/S0967199424000194","url":null,"abstract":"<p><p>Sperm infertility or subfertility is detrimental to the precious highland germplasm like yak whose population has been gradually declining in India. Understanding the 'omic' landscape of infertile or subfertile yak sperm can reveal some interesting insights. In an attempt to do the same, this study considered the semen of infertile or subfertile yak bulls for whole-genome and transcriptome evaluations. DNA sequencing revealed that the yak sperm genome contains the necessary genes to carry out all the important biological processes related to the growth, development, survival and multiplication of an organism. Interestingly, RNA Seq results highlighted that genes like <i>VAMP7</i>, <i>MYLK</i>, <i>ARAP2</i> and <i>MARCH6</i> showed increased expression, while biological processes related to immune response (GO:0043308, GO:0002447, GO:0002278, GO:0043307, GO:0043312, GO:0002283, GO:0043299 and GO:0002446) were significantly overrepresented. These findings hint at a possible role played by immune system in regulating infertility or subfertility in yaks. Further, in-depth studies can validate these findings and help in improving our biological understanding in this area.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZygotePub Date : 2024-09-19DOI: 10.1017/s0967199424000285
João Vitor de Azevedo Manhães, Douglas da Cruz Mattos, Rômulo Alves Strassburguer, Ulysses da Silva Palma, Fabio Carneiro Sterzelecki, Marco Shizuo Owatari, Caio Magnotti, Vinicius Ronzani Cerqueira
{"title":"Effects of different temperatures on the embryonic development of the Lebranche mullet Mugil liza","authors":"João Vitor de Azevedo Manhães, Douglas da Cruz Mattos, Rômulo Alves Strassburguer, Ulysses da Silva Palma, Fabio Carneiro Sterzelecki, Marco Shizuo Owatari, Caio Magnotti, Vinicius Ronzani Cerqueira","doi":"10.1017/s0967199424000285","DOIUrl":"https://doi.org/10.1017/s0967199424000285","url":null,"abstract":"<p>We herein investigated the influence of temperature on the embryonic development (from fertilisation to hatching) of <span>Mugil liza</span> larvae. For this purpose, oocytes (>600 μm) and sperm were obtained from breeding stock at the laboratory of marine fish culture (LAPMAR). After fertilisation, 1200 eggs were distributed in 12 cylindrical experimental units of 400 mL under four different temperatures 18, 22, 26 and 30 ºC, all in triplicate. Every 15 min until hatching, about 10 eggs were randomly sampled in each treatment. The eggs were visualized and photographed, and the classification of embryonic stages was performed. Temperature influenced the main events of the embryonic development of <span>M. liza</span>. More accelerated development was observed according to the increase in temperature until the gastrula phase. At temperatures of 22 and 26 °C, embryonic development occurred from fertilisation to hatching of the larvae. In the 18 °C treatment, it was verified that most of the embryos ceased development during the final phase of cleavage and the beginning of blastula formation, while in the 30 °C treatment patterns of embryo malformation were also verified, with erratic divisions of the blastomeres, resulting in irregular cells. Unlike what was observed at a temperature of 18 °C, none of the embryos incubated at 30 °C reached the blastopore closure phase, stopping in the gastrula. The larvae hatched in the treatments at 22 and 26 °C were viable and exhibited intense swimming, with a large amount of reserve material (yolk) and an evident drop of oil.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Resveratrol attenuates doxorubicin-induced toxicity during in vitro culture of mouse-isolated preantral follicles","authors":"G.A.L. Silva, A.P.O Monte, A.T.V. França, I.M. Mota, J.L. Oliveira Junior, K.O. Andrade, L.M. Souza, R.L.S. Silva, V.S. Guimarães, R.S. Barberino, R.C. Palheta Junior, J.E.J. Smitz, M.H.T. Matos","doi":"10.1017/s0967199424000315","DOIUrl":"https://doi.org/10.1017/s0967199424000315","url":null,"abstract":"<p>The aims of this study were to evaluate the doxorubicin concentration that induces toxic effects on <span>in vitro</span> culture of isolated mouse secondary follicles and to investigate whether resveratrol can inhibit or reduce this toxicity. Secondary follicles were isolated and cultured for 12 days in control medium (α-MEM<span>+</span>) or in α-MEM<span>+</span> supplemented with doxorubicin (0.1 µg/ml) or different concentrations of resveratrol (0.5, 2, or 5 µM) associated with doxorubicin (0.1 µg/ml) (experiment 1). For experiment 2, follicles were cultured in α-MEM<span>+</span> alone or supplemented with doxorubicin (0.3 µg/ml) or different concentrations of resveratrol (5 or 10 µM) associated or not with doxorubicin (0.3 µg/ml) (experiment 2). The endpoints analyzed were morphology (survival), antrum formation, follicular diameter, mitochondrial activity, glutathione (GSH) levels and DNA fragmentation. In the first experiment, doxorubicin (0.1 µg/ml) maintained survival and antrum formation similar to the control, while 5 µM resveratrol showed increased parameters, maintained mitochondrial activity and increased GSH levels compared to the control. In the second experiment, doxorubicin (0.3 µg/ml) reduced survival, antrum formation and follicular diameter compared to the control. Resveratrol at a concentration of 10 µM attenuated the damage caused by doxorubicin by improving follicular survival and did not present DNA fragmentation. In conclusion, supplementation of the <span>in vitro</span> culture medium with 0.3 µg/ml doxorubicin reduced the survival and impaired the development of mouse-isolated preantral follicles. Resveratrol at 10 µM reduced doxorubicin-induced follicular atresia, without DNA fragmentation in the follicles.</p>","PeriodicalId":24075,"journal":{"name":"Zygote","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}