Pub Date : 2023-02-01DOI: 10.1080/19396368.2022.2141154
Timor M El-Sherry, Mohammed A Abdel-Ghani, Hatem K Abdel Hafez, Mohammed Abdelgawad
Sperm rheotaxis refers to the ability of sperm cells to align their swimming direction with or against fluid flow. Positive rheotaxis (PR) is the tendency of sperm cells to swim against the flow. Herein, we describe sperm rheotaxis in fertile and infertile males, using a microfluidic platform and focus on rheotaxis as a potential marker of male fertility. A previously reported computer-assisted sperm analysis (CASA) plugin for Image-J was used to detect and analyze the motion of human sperm cells in microfluidic environments. The fabricated microchannels mimic the female reproductive tracts and use an image-processing program to monitor sperm swimming behavior in semen samples from fertile and infertile men. We have constructed an image-processing pipeline. The image-processing pipeline incorporated strengthens object detection and particle tracking to adapt to sperm that are out of focus while swimming on the same track. PR% was defined as the number of PR sperm cells over the number of motile sperm cells. The results showed that the percentage of PR correlates with fertility, wherein the fertile male specimens showed a higher PR% than the other groups (P < 0.05). There is no difference in progressive motility between the control group (fertile men with normal sperm analysis) and group 1 (G1; infertile men with normal sperm analysis). However, PR% was lower (P < 0.05) in the G1 group (13.5 ± 0.4%) compared to the control group (40.3 ± 3.3%) and group 2 (G2; infertile with reduced sperm motility) (15.3 ± 4.6%). Thus, PR% may be used as a novel parameter to explain infertility even in situations where basic sperm analysis following the World Health Organization (WHO) guidelines is unable to do so. We propose to use PR% as a novel parameter for sperm analysis and as a method of sperm selection in assisted reproductive technology.
{"title":"Rheotaxis of sperm in fertile and infertile men.","authors":"Timor M El-Sherry, Mohammed A Abdel-Ghani, Hatem K Abdel Hafez, Mohammed Abdelgawad","doi":"10.1080/19396368.2022.2141154","DOIUrl":"https://doi.org/10.1080/19396368.2022.2141154","url":null,"abstract":"<p><p>Sperm rheotaxis refers to the ability of sperm cells to align their swimming direction with or against fluid flow. Positive rheotaxis (PR) is the tendency of sperm cells to swim against the flow. Herein, we describe sperm rheotaxis in fertile and infertile males, using a microfluidic platform and focus on rheotaxis as a potential marker of male fertility. A previously reported computer-assisted sperm analysis (CASA) plugin for Image-J was used to detect and analyze the motion of human sperm cells in microfluidic environments. The fabricated microchannels mimic the female reproductive tracts and use an image-processing program to monitor sperm swimming behavior in semen samples from fertile and infertile men. We have constructed an image-processing pipeline. The image-processing pipeline incorporated strengthens object detection and particle tracking to adapt to sperm that are out of focus while swimming on the same track. PR% was defined as the number of PR sperm cells over the number of motile sperm cells. The results showed that the percentage of PR correlates with fertility, wherein the fertile male specimens showed a higher PR% than the other groups (<i>P <</i> 0.05). There is no difference in progressive motility between the control group (fertile men with normal sperm analysis) and group 1 (G1; infertile men with normal sperm analysis). However, PR% was lower (<i>P <</i> 0.05) in the G1 group (13.5 ± 0.4%) compared to the control group (40.3 ± 3.3%) and group 2 (G2; infertile with reduced sperm motility) (15.3 ± 4.6%). Thus, PR% may be used as a novel parameter to explain infertility even in situations where basic sperm analysis following the World Health Organization (WHO) guidelines is unable to do so. We propose to use PR% as a novel parameter for sperm analysis and as a method of sperm selection in assisted reproductive technology.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9324168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-01DOI: 10.1080/19396368.2022.2121191
Hui Ji, Shanren Cao, Hui Ding, Li Dong, Chun Zhao, Junqiang Zhang, Jing Lu, Xiuling Li, Xiufeng Ling
In this study, we aimed to evaluate whether post-thaw culture duration affected the clinical outcomes of frozen blastocyst transfer. This retrospective cohort study included 3,901 frozen-thawed blastocyst transfer cycles. The cohorts were divided into two groups based on the developmental stage (day 5 [D5] and day 6 [D6]) and culture duration after thawing (short culture, 2-6 h; long culture, 18-20 h). Women in the short culture group following D6 blastocyst transfer were further divided into three subgroups depending on the post-thaw culture period (2, 4, and 6 h). The main outcomes, namely live birth rate (LBR), implantation rate (IR), clinical pregnancy rate (CPR), and abortion rate (AR), showed no statistical differences within the groups following D5 blastocyst transfer. Patients in the long culture group had significantly lower IR (35.5 vs. 45.8%, p < 0.001), CPR (45.3 vs. 56.6%, p = 0.001), and LBR (35.5 vs. 48.5%, p < 0.001) but a significantly higher AR (21.6 vs. 14.3%, p = 0.049) following D6 blastocyst transfer than those in the short culture group. However, the data failed to present the superiority of any short culture duration over another on the live birth outcome for embryos vitrified on D6 (adjusted odds ratio [aOR]: 0.96, 95% confidence interval [95% CI]: 0.53-1.73, p = 0.881, for the 4-h vs. 2-h subgroup; aOR: 1.01, 95% CI: 0.68-1.49, p = 0.974, for the 6-h vs. 2-h subgroup). Both post-thaw protocols can be applied to patients with D5 blastocysts. To optimize the pregnancy outcomes following D6 blastocyst transfer, a short culture period is recommended. Any of the three short culture durations (2, 4, and 6 h) can be applied, depending on the workflow of the laboratory.
在这项研究中,我们旨在评估解冻后培养时间是否影响冷冻囊胚移植的临床结果。这项回顾性队列研究包括3901个冻融囊胚移植周期。根据发育阶段(第5天[D5]和第6天[D6])和解冻后培养时间(短培养,2-6 h;长时间培养,18-20 h)。D6囊胚移植后短培养组的女性根据解冻后培养时间(2、4和6小时)进一步分为三个亚组。D5囊胚移植后各组主要指标活产率(LBR)、着床率(IR)、临床妊娠率(CPR)、流产率(AR)差异无统计学意义。D6囊胚移植后,长培养组患者IR(35.5比45.8%,p p = 0.001)和LBR(35.5比48.5%,p p = 0.049)显著低于短培养组。然而,该数据未能显示任何短培养时间对D6玻璃化胚胎的活产结果的优势(4小时与2小时亚组的调整优势比[aOR]: 0.96, 95%可信区间[95% CI]: 0.53-1.73, p = 0.881;aOR: 1.01, 95% CI: 0.68-1.49, p = 0.974(6小时与2小时亚组)。两种解冻后方案均可应用于D5囊胚患者。为了优化D6囊胚移植后的妊娠结局,建议缩短培养时间。根据实验室的工作流程,可以应用三种短培养时间(2,4和6小时)中的任何一种。
{"title":"Influence of post-thaw culture duration on pregnancy outcomes in frozen blastocyst transfer cycles.","authors":"Hui Ji, Shanren Cao, Hui Ding, Li Dong, Chun Zhao, Junqiang Zhang, Jing Lu, Xiuling Li, Xiufeng Ling","doi":"10.1080/19396368.2022.2121191","DOIUrl":"https://doi.org/10.1080/19396368.2022.2121191","url":null,"abstract":"<p><p>In this study, we aimed to evaluate whether post-thaw culture duration affected the clinical outcomes of frozen blastocyst transfer. This retrospective cohort study included 3,901 frozen-thawed blastocyst transfer cycles. The cohorts were divided into two groups based on the developmental stage (day 5 [D5] and day 6 [D6]) and culture duration after thawing (short culture, 2-6 h; long culture, 18-20 h). Women in the short culture group following D6 blastocyst transfer were further divided into three subgroups depending on the post-thaw culture period (2, 4, and 6 h). The main outcomes, namely live birth rate (LBR), implantation rate (IR), clinical pregnancy rate (CPR), and abortion rate (AR), showed no statistical differences within the groups following D5 blastocyst transfer. Patients in the long culture group had significantly lower IR (35.5 vs. 45.8%, <i>p</i> < 0.001), CPR (45.3 vs. 56.6%, <i>p</i> = 0.001), and LBR (35.5 vs. 48.5%, <i>p</i> < 0.001) but a significantly higher AR (21.6 vs. 14.3%, <i>p</i> = 0.049) following D6 blastocyst transfer than those in the short culture group. However, the data failed to present the superiority of any short culture duration over another on the live birth outcome for embryos vitrified on D6 (adjusted odds ratio [aOR]: 0.96, 95% confidence interval [95% CI]: 0.53-1.73, <i>p</i> = 0.881, for the 4-h vs. 2-h subgroup; aOR: 1.01, 95% CI: 0.68-1.49, <i>p</i> = 0.974, for the 6-h vs. 2-h subgroup). Both post-thaw protocols can be applied to patients with D5 blastocysts. To optimize the pregnancy outcomes following D6 blastocyst transfer, a short culture period is recommended. Any of the three short culture durations (2, 4, and 6 h) can be applied, depending on the workflow of the laboratory.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10749442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-01DOI: 10.1080/19396368.2022.2153636
Panagiotis Ntostis, Grace Swanson, Georgia Kokkali, David Iles, John Huntriss, Agni Pantou, Maria Tzetis, Konstantinos Pantos, Helen M Picton, Stephen A Krawetz, David Miller
Increasing female age is accompanied by a corresponding fall in her fertility. This decline is influenced by a variety of factors over an individual's life course including background genetics, local environment and diet. Studying both coding and non-coding RNAs of the embryo could aid our understanding of the causes and/or effects of the physiological processes accompanying the decline including the differential expression of sub-cellular biomarkers indicative of various diseases. The current study is a post-hoc analysis of the expression of trophectoderm RNA data derived from a previous high throughput study. Its main aim is to determine the characteristics and potential functionalities that characterize long non-coding RNAs. As reported previously, a maternal age-related component is potentially implicated in implantation success. Trophectoderm samples representing the full range of maternal reproductive ages were considered in relation to embryonic implantation potential, trophectoderm transcriptome dynamics and reproductive maternal age. The long non-coding RNA (lncRNA) biomarkers identified here are consistent with the activities of embryo-endometrial crosstalk, developmental competency and implantation and share common characteristics with markers of neoplasia/cancer invasion. Corresponding genes for expressed lncRNAs were more active in the blastocysts of younger women are associated with metabolic pathways including cholesterol biosynthesis and steroidogenesis.
{"title":"Trophectoderm non-coding RNAs reflect the higher metabolic and more invasive properties of young maternal age blastocysts.","authors":"Panagiotis Ntostis, Grace Swanson, Georgia Kokkali, David Iles, John Huntriss, Agni Pantou, Maria Tzetis, Konstantinos Pantos, Helen M Picton, Stephen A Krawetz, David Miller","doi":"10.1080/19396368.2022.2153636","DOIUrl":"https://doi.org/10.1080/19396368.2022.2153636","url":null,"abstract":"<p><p>Increasing female age is accompanied by a corresponding fall in her fertility. This decline is influenced by a variety of factors over an individual's life course including background genetics, local environment and diet. Studying both coding and non-coding RNAs of the embryo could aid our understanding of the causes and/or effects of the physiological processes accompanying the decline including the differential expression of sub-cellular biomarkers indicative of various diseases. The current study is a post-hoc analysis of the expression of trophectoderm RNA data derived from a previous high throughput study. Its main aim is to determine the characteristics and potential functionalities that characterize long non-coding RNAs. As reported previously, a maternal age-related component is potentially implicated in implantation success. Trophectoderm samples representing the full range of maternal reproductive ages were considered in relation to embryonic implantation potential, trophectoderm transcriptome dynamics and reproductive maternal age. The long non-coding RNA (lncRNA) biomarkers identified here are consistent with the activities of embryo-endometrial crosstalk, developmental competency and implantation and share common characteristics with markers of neoplasia/cancer invasion. Corresponding genes for expressed lncRNAs were more active in the blastocysts of younger women are associated with metabolic pathways including cholesterol biosynthesis and steroidogenesis.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9151305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyperhomocysteinemia (HHcy) is an autosomal recessive inherited metabolic disease caused by variations in folate metabolism genes, characterized by impaired methionine metabolism and accumulation of homocysteine (Hcy) in the blood serum. It was shown that men usually have higher plasma Hcy levels than women, but have not yet assessed the leading factors of these differences, which is important for the development of personalized protocols for the prevention of folate metabolism disorders in couples with reproductive disorders. This study aimed to analyze the effect of intergenic and gene-factor interactions on the risk of developing HHcy in men and women of married couples with reproductive disorders. In our study were involved 206 married Caucasian couples (206 males and 206 females) from central regions of Ukraine with early pregnancy losses in the anamnesis. We found that the incidence of HHcy in men was significantly higher than in women. Gender differences in folic acid and vitamin B12 levels were identified. The best predictors of HHcy in men (MTRR (A66G), MTHFR (C677T), MTR (A2756G), vitamin B12 level) and in women (MTHFR (C677T), MTR (A2756G), vitamin B12 level) were selected by binary logistic regression. There was no significant difference in the distribution of genotypes by the studied gene variants when comparing men and women with HHcy. Our findings demonstrate that there is a gender difference in the development of HHcy. This difference is caused by intergenic interaction and by environmental factors, in particular, nutrition and vitamins consumption.
{"title":"Hyperhomocysteinemia in men and women of married couples with reproductive disorders. What is the difference?","authors":"Zoia Rossokha, Liliya Fishchuk, Liudmyla Vorobei, Nataliia Medvedieva, Olena Popova, Viktoriia Vershyhora, Larysa Sheyko, Ljudmila Brisevac, Dmytro Stroy, Nataliia Gorovenko","doi":"10.1080/19396368.2022.2124896","DOIUrl":"https://doi.org/10.1080/19396368.2022.2124896","url":null,"abstract":"<p><p>Hyperhomocysteinemia (HHcy) is an autosomal recessive inherited metabolic disease caused by variations in folate metabolism genes, characterized by impaired methionine metabolism and accumulation of homocysteine (Hcy) in the blood serum. It was shown that men usually have higher plasma Hcy levels than women, but have not yet assessed the leading factors of these differences, which is important for the development of personalized protocols for the prevention of folate metabolism disorders in couples with reproductive disorders. This study aimed to analyze the effect of intergenic and gene-factor interactions on the risk of developing HHcy in men and women of married couples with reproductive disorders. In our study were involved 206 married Caucasian couples (206 males and 206 females) from central regions of Ukraine with early pregnancy losses in the anamnesis. We found that the incidence of HHcy in men was significantly higher than in women. Gender differences in folic acid and vitamin B12 levels were identified. The best predictors of HHcy in men (<i>MTRR</i> (A66G), <i>MTHFR</i> (C677T), <i>MTR</i> (A2756G), vitamin B12 level) and in women (<i>MTHFR</i> (C677T), <i>MTR</i> (A2756G), vitamin B12 level) were selected by binary logistic regression. There was no significant difference in the distribution of genotypes by the studied gene variants when comparing men and women with HHcy. Our findings demonstrate that there is a gender difference in the development of HHcy. This difference is caused by intergenic interaction and by environmental factors, in particular, nutrition and vitamins consumption.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10818926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-01DOI: 10.1080/19396368.2022.2119181
Niloofar Sadeghi, Guylain Boissonneault, Marziyeh Tavalaee, Mohammad Hossein Nasr-Esfahani
Despite the long-standing notion of "oxidative stress," as the main mediator of many diseases including male infertility induced by increased reactive oxygen species (ROS), recent evidence suggests that ROS levels are also increased by "reductive stress," due to over-accumulation of reductants. Damaging mechanisms, like guanidine oxidation followed by DNA fragmentation, could be observed following reductive stress. Excessive accumulation of the reductants may arise from excess dietary supplementation over driving the one-carbon cycle and transsulfuration pathway, overproduction of NADPH through the pentose phosphate pathway (PPP), elevated levels of GSH leading to impaired mitochondrial oxidation, or as a result NADH accumulation. In addition, lower availability of oxidized reductants like NAD+, oxidized glutathione (GSSG), and oxidized thioredoxins (Trx-S2) induce electron leakage leading to the formation of hydrogen peroxide (H2O2). In addition, a lower level of NAD+ impairs poly (ADP-ribose) polymerase (PARP)-regulated DNA repair essential for proper chromatin integrity of sperm. Because of the limited studies regarding the possible involvement of reductive stress, antioxidant therapy remains a central approach in the treatment of male infertility. This review put forward the concept of reductive stress and highlights the potential role played by reductive vs oxidative stress at pre-and post-testicular levels and considering dietary supplementation.
{"title":"Oxidative versus reductive stress: a delicate balance for sperm integrity.","authors":"Niloofar Sadeghi, Guylain Boissonneault, Marziyeh Tavalaee, Mohammad Hossein Nasr-Esfahani","doi":"10.1080/19396368.2022.2119181","DOIUrl":"https://doi.org/10.1080/19396368.2022.2119181","url":null,"abstract":"<p><p>Despite the long-standing notion of \"oxidative stress,\" as the main mediator of many diseases including male infertility induced by increased reactive oxygen species (ROS), recent evidence suggests that ROS levels are also increased by \"reductive stress,\" due to over-accumulation of reductants. Damaging mechanisms, like guanidine oxidation followed by DNA fragmentation, could be observed following reductive stress. Excessive accumulation of the reductants may arise from excess dietary supplementation over driving the one-carbon cycle and transsulfuration pathway, overproduction of NADPH through the pentose phosphate pathway (PPP), elevated levels of GSH leading to impaired mitochondrial oxidation, or as a result NADH accumulation. In addition, lower availability of oxidized reductants like NAD<sup>+</sup>, oxidized glutathione (GSSG), and oxidized thioredoxins (Trx-S2) induce electron leakage leading to the formation of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). In addition, a lower level of NAD<sup>+</sup> impairs poly (ADP-ribose) polymerase (PARP)-regulated DNA repair essential for proper chromatin integrity of sperm. Because of the limited studies regarding the possible involvement of reductive stress, antioxidant therapy remains a central approach in the treatment of male infertility. This review put forward the concept of reductive stress and highlights the potential role played by reductive vs oxidative stress at pre-and post-testicular levels and considering dietary supplementation.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10749448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-01DOI: 10.1080/19396368.2022.2140087
Sonali Bhattacharya, Sudipta Majumdar Nee Paul
The application of nanotechnology in the present era has substantial impact on different industrial and medical fields. However, the advancement in nanotechnology for potential therapeutic and consumer benefits has been an anxious cause regarding the probable hazardous consequences of these molecules in biological systems and the environment. The toxic effects can perturb the physiologic system broadly and reproductive function and fertility specifically. Despite engineered nanomaterials (ENMs) having a wide range of applications, toxicological investigations of the probable ramifications of ENMs on the reproductive systems of mammals and fertility remains in its nascence. Complication in the male reproductive system is quite a pertinent issue in today's world which comprises of benign prostatic enlargement, prostate cancer, and unhealthy sperm production. The therapeutic drugs should not only be active in minimum dose but also site-specific in action, criteria being met by nanomedicines. Nanomedicine therapy is promising but encompasses the chances of adverse effects of being cytotoxic and generating oxidative stress. These hurdles can be overcome by creating coated nanoparticles with organic substances, modification of shape and size, and synthesizing biocompatible green nanoparticles. This review attempts to look into the applications of most widely used metals like zinc, titanium, silver, and gold nanoparticles in the therapy of the male reproductive system, their prospective harmful effects, and the way out to create a safe therapeutic system by specific modifications of these metal and metal oxide nanoparticles.
{"title":"Application of conventional metallic nanoparticles on male reproductive system - challenges and countermeasures.","authors":"Sonali Bhattacharya, Sudipta Majumdar Nee Paul","doi":"10.1080/19396368.2022.2140087","DOIUrl":"https://doi.org/10.1080/19396368.2022.2140087","url":null,"abstract":"<p><p>The application of nanotechnology in the present era has substantial impact on different industrial and medical fields. However, the advancement in nanotechnology for potential therapeutic and consumer benefits has been an anxious cause regarding the probable hazardous consequences of these molecules in biological systems and the environment. The toxic effects can perturb the physiologic system broadly and reproductive function and fertility specifically. Despite engineered nanomaterials (ENMs) having a wide range of applications, toxicological investigations of the probable ramifications of ENMs on the reproductive systems of mammals and fertility remains in its nascence. Complication in the male reproductive system is quite a pertinent issue in today's world which comprises of benign prostatic enlargement, prostate cancer, and unhealthy sperm production. The therapeutic drugs should not only be active in minimum dose but also site-specific in action, criteria being met by nanomedicines. Nanomedicine therapy is promising but encompasses the chances of adverse effects of being cytotoxic and generating oxidative stress. These hurdles can be overcome by creating coated nanoparticles with organic substances, modification of shape and size, and synthesizing biocompatible green nanoparticles. This review attempts to look into the applications of most widely used metals like zinc, titanium, silver, and gold nanoparticles in the therapy of the male reproductive system, their prospective harmful effects, and the way out to create a safe therapeutic system by specific modifications of these metal and metal oxide nanoparticles.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10766664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-01DOI: 10.1080/19396368.2023.2156032
Stephen A Krawetz
{"title":"The New Year of Systems Biology in Reproductive Medicine.","authors":"Stephen A Krawetz","doi":"10.1080/19396368.2023.2156032","DOIUrl":"https://doi.org/10.1080/19396368.2023.2156032","url":null,"abstract":"","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9078936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Women who are undergoing preimplantation genetic testing for aneuploidy (PGT-A) often wish to know how many eggs will be required to optimize the chances of a live birth. However, no precise data on this can yet be provided during genetic counseling for this procedure. On the basis of PGT-A data from related studies and current databases, we have estimated that the number of zygotes required for a 50% chance of a live birth is 8 at age 40 but increases markedly to 21 at age 43. PGT-A markedly reduces the miscarriage rate per embryo transfer but does not alleviate the extremely high number of zygotes required for a live birth in women of an advanced maternal age. Detailed genetic counseling will therefore be desirable prior to undergoing this procedure.
{"title":"The age-related required number of zygotes estimated from prior clinical studies of preimplantation genetic testing for aneuploidy (PGT-A).","authors":"Tasuku Mariya, Takeshi Sugimoto, Takema Kato, Toshiaki Endo, Hiroki Kurahashi","doi":"10.1080/19396368.2022.2151387","DOIUrl":"https://doi.org/10.1080/19396368.2022.2151387","url":null,"abstract":"<p><p>Women who are undergoing preimplantation genetic testing for aneuploidy (PGT-A) often wish to know how many eggs will be required to optimize the chances of a live birth. However, no precise data on this can yet be provided during genetic counseling for this procedure. On the basis of PGT-A data from related studies and current databases, we have estimated that the number of zygotes required for a 50% chance of a live birth is 8 at age 40 but increases markedly to 21 at age 43. PGT-A markedly reduces the miscarriage rate per embryo transfer but does not alleviate the extremely high number of zygotes required for a live birth in women of an advanced maternal age. Detailed genetic counseling will therefore be desirable prior to undergoing this procedure.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10758805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-01Epub Date: 2022-09-15DOI: 10.1080/19396368.2022.2115326
Verônyca Gonçalves Paula, Maysa Rocha de Souza, Yuri Karen Sinzato, Ana Izabel Silva Balbin Villaverde, José Eduardo Corrente, Gustavo Tadeu Volpato, Débora Cristina Damasceno
Maternal diabetes-mediated fetal programming is widely discussed, however, it is important to define the extent to which intrauterine hyperglycemia interferes with the health of female pups, along with determining whether these changes can be perpetuated across generations. This study aimed to evaluate the effects of maternal diabetes on fetal programming and the repercussions on the metabolism of pregnant and nonpregnant female pups. Diabetes status was induced (diabetic group-D) using streptozotocin (a beta cell cytotoxic drug) on the fifth postnatal day of female rats, while controls received a citrate buffer (Control-C). In adulthood, the rats were mated to obtain their female pups. At 90 days of age, half of the female pups were mated (preg) and the other half continued virgin (Npreg). Furthermore, they were distributed into four groups: OC/Npreg and OC/preg-female pups from control mothers; OD/Npreg and OD/preg-female pups from diabetic mothers. At 115 days of life and/or 17 days of pregnancy, the oral glucose tolerance test (OGTT) was performed with blood collection for insulin measurement. At 120 days of life and/or 21 days of pregnancy, the rats were anesthetized and euthanized to determine their blood oxidative stress status. The OD/Npreg group showed glucose intolerance during OGTT (p < 0.0001), while the OD/preg group showed increased insulin secretion during OGTT (p < 0.0001) and insulin resistance (IR; p = 0.0027). An increase in homeostatic model assessment β was shown in the pregnant groups, regardless of maternal diabetes (p < 0.0001). The OD/preg group presented increased thiobarbituric acid reactive substances (p < 0.0001) and -SH levels (p = 0.0005) and decreased superoxide dismutase activity (p = 0.0063). Additionally, small fetuses for gestational age (p < 0.0001) were found in these rats. In conclusion, exposure to maternal hyperglycemia compromises the glycemic metabolism of female pups before and during pregnancy and causes oxidative stress, IR, and impaired fetal growth during pregnancy.
母体糖尿病介导的胎儿规划被广泛讨论,然而,重要的是确定宫内高血糖对雌性幼崽健康的干扰程度,以及确定这些变化是否可以代代相传。本研究旨在评估母体糖尿病对胎儿编程的影响以及对怀孕和未怀孕雌性幼崽代谢的影响。在雌性大鼠出生后第5天,使用链脲佐菌素(一种β细胞毒性药物)诱导糖尿病状态(糖尿病组d),而对照组使用柠檬酸缓冲液(Control-C)。成年后,这些老鼠进行交配以获得它们的雌性幼崽。在90日龄时,一半的雌性幼崽交配(怀孕),另一半继续保持处女(未怀孕)。此外,它们被分为四组:对照母鼠的OC/Npreg和OC/preg雌性幼崽;糖尿病母鼠的OD/Npreg和OD/preg幼崽。在出生第115天和/或妊娠第17天,进行口服葡萄糖耐量试验(OGTT)并采血测量胰岛素。在出生120天和/或怀孕21天时,对大鼠进行麻醉和安乐死,以测定其血液氧化应激状态。OD/Npreg组在OGTT期间出现葡萄糖耐受不良(p p p = 0.0027)。无论孕妇是否患有糖尿病(p = 0.0005),妊娠组小鼠体内稳态模型评估β升高(p = 0.0005),超氧化物歧化酶活性降低(p = 0.0063)。此外,胎龄小的胎儿(p
{"title":"Nonpregnant and pregnant adult female rats affected by maternal diabetes environment.","authors":"Verônyca Gonçalves Paula, Maysa Rocha de Souza, Yuri Karen Sinzato, Ana Izabel Silva Balbin Villaverde, José Eduardo Corrente, Gustavo Tadeu Volpato, Débora Cristina Damasceno","doi":"10.1080/19396368.2022.2115326","DOIUrl":"https://doi.org/10.1080/19396368.2022.2115326","url":null,"abstract":"<p><p>Maternal diabetes-mediated fetal programming is widely discussed, however, it is important to define the extent to which intrauterine hyperglycemia interferes with the health of female pups, along with determining whether these changes can be perpetuated across generations. This study aimed to evaluate the effects of maternal diabetes on fetal programming and the repercussions on the metabolism of pregnant and nonpregnant female pups. Diabetes status was induced (diabetic group-D) using streptozotocin (a beta cell cytotoxic drug) on the fifth postnatal day of female rats, while controls received a citrate buffer (Control-C). In adulthood, the rats were mated to obtain their female pups. At 90 days of age, half of the female pups were mated (preg) and the other half continued virgin (Npreg). Furthermore, they were distributed into four groups: OC/Npreg and OC/preg-female pups from control mothers; OD/Npreg and OD/preg-female pups from diabetic mothers. At 115 days of life and/or 17 days of pregnancy, the oral glucose tolerance test (OGTT) was performed with blood collection for insulin measurement. At 120 days of life and/or 21 days of pregnancy, the rats were anesthetized and euthanized to determine their blood oxidative stress status. The OD/Npreg group showed glucose intolerance during OGTT (<i>p</i> < 0.0001), while the OD/preg group showed increased insulin secretion during OGTT (<i>p</i> < 0.0001) and insulin resistance (IR; <i>p</i> = 0.0027). An increase in homeostatic model assessment β was shown in the pregnant groups, regardless of maternal diabetes (<i>p</i> < 0.0001). The OD/preg group presented increased thiobarbituric acid reactive substances (<i>p</i> < 0.0001) and -SH levels (<i>p</i> = 0.0005) and decreased superoxide dismutase activity (<i>p</i> = 0.0063). Additionally, small fetuses for gestational age (<i>p</i> < 0.0001) were found in these rats. In conclusion, exposure to maternal hyperglycemia compromises the glycemic metabolism of female pups before and during pregnancy and causes oxidative stress, IR, and impaired fetal growth during pregnancy.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40360025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Under normal conditions, to achieve optimal spermatogenesis, the temperature of the testes should be 2-6 °C lower than body temperature. Cryptorchidism is one of the common pathogenic factors of male infertility. The increase of testicular temperature in male cryptorchidism patients leads to the disorder of body regulation and balance, induces the oxidative stress response of germ cells, destroys the integrity of sperm DNA, yields morphologically abnormal sperm, and leads to excessive apoptosis of germ cells. These physiological changes in the body can reduce sperm fertility and lead to male infertility. This paper describes the factors causing testicular heat stress, including lifestyle and behavioral factors, occupational and environmental factors (external factors), and clinical factors caused by pathological conditions (internal factors). Studies have shown that wearing tight pants or an inappropriate posture when sitting for a long time in daily life, and an increase in ambient temperature caused by different seasons or in different areas, can cause an increase in testicular temperature, induces testicular oxidative stress response, and reduce male fertility. The occurrence of cryptorchidism causes pathological changes within the testis and sperm, such as increased germ cell apoptosis, DNA damage in sperm cells, changes in gene expression, increase in chromosome aneuploidy, and changes in Na+/K+-ATPase activity, etc. At the end of the article, we list some substances that can relieve oxidative stress in tissues, such as trigonelline, melatonin, R. apetalus, and angelica powder. These substances can protect testicular tissue and relieve the damage caused by excessive oxidative stress.
{"title":"The effects and molecular mechanism of heat stress on spermatogenesis and the mitigation measures.","authors":"Yuanyuan Gao, Chen Wang, Kaixian Wang, Chaofan He, Ke Hu, Meng Liang","doi":"10.1080/19396368.2022.2074325","DOIUrl":"https://doi.org/10.1080/19396368.2022.2074325","url":null,"abstract":"<p><p>Under normal conditions, to achieve optimal spermatogenesis, the temperature of the testes should be 2-6 °C lower than body temperature. Cryptorchidism is one of the common pathogenic factors of male infertility. The increase of testicular temperature in male cryptorchidism patients leads to the disorder of body regulation and balance, induces the oxidative stress response of germ cells, destroys the integrity of sperm DNA, yields morphologically abnormal sperm, and leads to excessive apoptosis of germ cells. These physiological changes in the body can reduce sperm fertility and lead to male infertility. This paper describes the factors causing testicular heat stress, including lifestyle and behavioral factors, occupational and environmental factors (external factors), and clinical factors caused by pathological conditions (internal factors). Studies have shown that wearing tight pants or an inappropriate posture when sitting for a long time in daily life, and an increase in ambient temperature caused by different seasons or in different areas, can cause an increase in testicular temperature, induces testicular oxidative stress response, and reduce male fertility. The occurrence of cryptorchidism causes pathological changes within the testis and sperm, such as increased germ cell apoptosis, DNA damage in sperm cells, changes in gene expression, increase in chromosome aneuploidy, and changes in Na<sup>+</sup>/K<sup>+</sup>-ATPase activity, etc. At the end of the article, we list some substances that can relieve oxidative stress in tissues, such as trigonelline, melatonin, R. apetalus, and angelica powder. These substances can protect testicular tissue and relieve the damage caused by excessive oxidative stress.</p>","PeriodicalId":22184,"journal":{"name":"Systems Biology in Reproductive Medicine","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40058470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}