There has been a growing interest over the past few years in the impact of male nutrition on fertility. Infertility has been linked to male overweight or obesity, and conventional semen parameter values seem to be alt...There has been a growing interest over the past few years in the impact of male nutrition on fertility. Infertility has been linked to male overweight or obesity, and conventional semen parameter values seem to be altered in case of high body mass index （BMI）. A few studies assessing the impact of BMI on sperm DNA integrity have been published, but they did not lead to a strong consensus. Our objective was to explore further the relationship between sperm DNA integrity and BMI, through a 3-year multicentre study. Three hundred and thirty male partners in subfertile couples were included. Using the terminal uridine nick-end labelling （TUNEL） assay, we observed an increased rate of sDerm DNA damage in obese men （odds ratio （95% confidence interval）： 2.5 （1.2-5.1））.展开更多
Lifestyle factors, such as weight and nutritional status may affect male fertility, including sperm fertilization ability. The objective of this retrospective study was to evaluate the association between body mass in...Lifestyle factors, such as weight and nutritional status may affect male fertility, including sperm fertilization ability. The objective of this retrospective study was to evaluate the association between body mass index （BMI） and sperm-zona pellucida binding ability assessed according to the zona binding （ZB） test, which has been described to be a relevant diagnostic tool for the prediction of in vitro fertilization （IVF） ability. Three hundred and six male patients from couples diagnosed with primary idiopathic or mild male factor infertility were included. Correlations between BMI and semen parameters according to ZB test indices were assessed, together with frequencies of positive and negative tests across the BMI categories. In this selected population, BMI was not related to conventional semen parameters or sperm quality assessed according to the ability of spermatozoa to bind to the zona pellucida. The previously described poor outcomes of IVF procedures in cases of male obesity could be due to other sperm defects, such as alterations of sperm capacitation or acrosome reaction. The link between male BMI and biological outcomes during IVF procedures, such as fertilization rates, should be further evaluated.展开更多
Dear Editor, Allogeneic or autologous hematopoietic stem cell transplantation （HSCT） allows many patients with hematological malignancies to obtain prolonged survival and often disease cure. Autologous HSCT is part...Dear Editor, Allogeneic or autologous hematopoietic stem cell transplantation （HSCT） allows many patients with hematological malignancies to obtain prolonged survival and often disease cure. Autologous HSCT is particularly effective in acute promyelocytic leukemia （APL）, a subtype of acute myeloid leukemia （AML） after relapse with conventional treatment. However, iatrogenic endocrine disturbances and reproductive failure are frequently-encountered late effects, which have a major impact on the quality oflife.l Conditioning regimens with total body irradiation （TBI） and intensive chemotherapy before autologons or allogeneic HSCT are known to cause permanent infertility, a risk that can be prevented by sperm banking.2展开更多
Dear Editor,Allogeneic or autologous hematopoietic stem cell transplantation(HSCT)concerns an increasing number of patients.Worldwide,89070 allogeneic and autologous HSCT procedures were reported in 2016,representing ...Dear Editor,Allogeneic or autologous hematopoietic stem cell transplantation(HSCT)concerns an increasing number of patients.Worldwide,89070 allogeneic and autologous HSCT procedures were reported in 2016,representing a 7%increase per year since 1991.1 Improved transplant strategies and therapeutic efficacy have made HSCT a curative option for various indications,mostly comprising malignant blood cell pathologies but also including solid tumors or benign conditions.2 The conditioning regimen for transplantation often includes alkylating agents and/or total body irradiation(TBI).2 These treatments usually lead to permanent infertility.3 In men,the consequences include the impairment and reduction of Sertoli and Leydig cells,leading to the suppression of the spermatogonia pool and increased release of gonadotrophin.3 Although sperm banking can mitigate the risk of infertility.展开更多
Macrozoospermia,characterized by the presence of largeheaded spermatozoa usually carrying several flagella,is one of the most severe phenotypes of male infertility.As in most cases,the gametes are chromosomally abnorm...Macrozoospermia,characterized by the presence of largeheaded spermatozoa usually carrying several flagella,is one of the most severe phenotypes of male infertility.As in most cases,the gametes are chromosomally abnormal and cannot be used for assisted reproductive technologies(ART)(Ray et al.,2017).In 2007,subjects from consanguineous families were shown to carry the same homozygous deleterious AURKC variant(NM_001015878.2:c.144delC,later renamed c.145delC,p.Leu49TrpfsTer23),establishing AURKC as the first and main gene associated with macrozoospermia(Dieterich et al.,2007).Using flow cytometry,all spermatozoa from patients homozygous for the c.145delC variant were shown to be tetraploid,highlighting a cytokinesis blockage of the first meiotic divisions thus confirming that ART cannot be successful for these patients(Dieterich et al.,2009).展开更多
Advances in the oncology field have led to improved survival rates.Consequently,quality of life after remission is anticipated,which includes the possibility to conceive children.Since cancer treatments are potentiall...Advances in the oncology field have led to improved survival rates.Consequently,quality of life after remission is anticipated,which includes the possibility to conceive children.Since cancer treatments are potentially gonadotoxic,fertility preservation must be proposed.Male fertility preservation is mainly based on ejaculated sperm cryopreservation.When this is not possible,testicular sperm extraction(TESE)may be planned.To identify situations in which TESE has been beneficial,a systematic review was conducted.The search was carried out on the PubMed,Scopus,Google Scholar,and CISMeF databases from 1 January 2000 to 19 March 2020.Preferred Reporting Items for Systematic Reviews and Meta-Analyses(PRISMA)recommendations were followed in selecting items of interest.Thirty-four articles were included in the systematic review,including 15 articles on oncological testicular sperm extraction(oncoTESE),18 articles on postgonadotoxic treatment TESE and 1 article on both oncoTESE and postgonadotoxic treatment TESE.Testicular sperm freezing was possible for 42.9%to 57.7%of patients before gonadotoxic treatment and for 32.4%to 75.5%of patients after gonadotoxic treatment,depending on the type of malignant disease.Although no formal conclusion could be drawn about the chances to obtain sperm in specific situations,our results suggest that TESE can be proposed before and after gonadotoxic treatment.Before treatment,TESE is more often proposed for men with testicular cancer presenting with azoospermia since TESE can be performed simultaneously with tumor removal or orchiectomy.After chemotherapy,TESE may be planned if the patient presents with persistent azoospermia.展开更多
They have made a good description of a well-defined and homogenous population, with a sample of included donors that was quite large. This population was interesting since it involved young men for whom fertility stat...They have made a good description of a well-defined and homogenous population, with a sample of included donors that was quite large. This population was interesting since it involved young men for whom fertility status is mostly unknown. Indeed, most of the previously published studies focus on male partners of infertile couples or on fertile sperm donors. In this population, they found that the sperm quality was not optimal, with 3.4% and 0.5% of those young donors presenting oligozoospermia and azoospermia, respectively.展开更多
文摘There has been a growing interest over the past few years in the impact of male nutrition on fertility. Infertility has been linked to male overweight or obesity, and conventional semen parameter values seem to be altered in case of high body mass index （BMI）. A few studies assessing the impact of BMI on sperm DNA integrity have been published, but they did not lead to a strong consensus. Our objective was to explore further the relationship between sperm DNA integrity and BMI, through a 3-year multicentre study. Three hundred and thirty male partners in subfertile couples were included. Using the terminal uridine nick-end labelling （TUNEL） assay, we observed an increased rate of sDerm DNA damage in obese men （odds ratio （95% confidence interval）： 2.5 （1.2-5.1））.
文摘Lifestyle factors, such as weight and nutritional status may affect male fertility, including sperm fertilization ability. The objective of this retrospective study was to evaluate the association between body mass index （BMI） and sperm-zona pellucida binding ability assessed according to the zona binding （ZB） test, which has been described to be a relevant diagnostic tool for the prediction of in vitro fertilization （IVF） ability. Three hundred and six male patients from couples diagnosed with primary idiopathic or mild male factor infertility were included. Correlations between BMI and semen parameters according to ZB test indices were assessed, together with frequencies of positive and negative tests across the BMI categories. In this selected population, BMI was not related to conventional semen parameters or sperm quality assessed according to the ability of spermatozoa to bind to the zona pellucida. The previously described poor outcomes of IVF procedures in cases of male obesity could be due to other sperm defects, such as alterations of sperm capacitation or acrosome reaction. The link between male BMI and biological outcomes during IVF procedures, such as fertilization rates, should be further evaluated.
文摘Dear Editor, Allogeneic or autologous hematopoietic stem cell transplantation （HSCT） allows many patients with hematological malignancies to obtain prolonged survival and often disease cure. Autologous HSCT is particularly effective in acute promyelocytic leukemia （APL）, a subtype of acute myeloid leukemia （AML） after relapse with conventional treatment. However, iatrogenic endocrine disturbances and reproductive failure are frequently-encountered late effects, which have a major impact on the quality oflife.l Conditioning regimens with total body irradiation （TBI） and intensive chemotherapy before autologons or allogeneic HSCT are known to cause permanent infertility, a risk that can be prevented by sperm banking.2
文摘Dear Editor,Allogeneic or autologous hematopoietic stem cell transplantation(HSCT)concerns an increasing number of patients.Worldwide,89070 allogeneic and autologous HSCT procedures were reported in 2016,representing a 7%increase per year since 1991.1 Improved transplant strategies and therapeutic efficacy have made HSCT a curative option for various indications,mostly comprising malignant blood cell pathologies but also including solid tumors or benign conditions.2 The conditioning regimen for transplantation often includes alkylating agents and/or total body irradiation(TBI).2 These treatments usually lead to permanent infertility.3 In men,the consequences include the impairment and reduction of Sertoli and Leydig cells,leading to the suppression of the spermatogonia pool and increased release of gonadotrophin.3 Although sperm banking can mitigate the risk of infertility.
基金funded by the French National Research Agency(ANR)projects MAS FLAGELLA (ANR-14-CE15-0002)+2 种基金FLAGELOME (ANR-19-CE17-0014)the INSERM (Institut National de la Sante et de la Recherche Medicale)Bettencourt Foundation
文摘Macrozoospermia,characterized by the presence of largeheaded spermatozoa usually carrying several flagella,is one of the most severe phenotypes of male infertility.As in most cases,the gametes are chromosomally abnormal and cannot be used for assisted reproductive technologies(ART)(Ray et al.,2017).In 2007,subjects from consanguineous families were shown to carry the same homozygous deleterious AURKC variant(NM_001015878.2:c.144delC,later renamed c.145delC,p.Leu49TrpfsTer23),establishing AURKC as the first and main gene associated with macrozoospermia(Dieterich et al.,2007).Using flow cytometry,all spermatozoa from patients homozygous for the c.145delC variant were shown to be tetraploid,highlighting a cytokinesis blockage of the first meiotic divisions thus confirming that ART cannot be successful for these patients(Dieterich et al.,2009).
文摘Advances in the oncology field have led to improved survival rates.Consequently,quality of life after remission is anticipated,which includes the possibility to conceive children.Since cancer treatments are potentially gonadotoxic,fertility preservation must be proposed.Male fertility preservation is mainly based on ejaculated sperm cryopreservation.When this is not possible,testicular sperm extraction(TESE)may be planned.To identify situations in which TESE has been beneficial,a systematic review was conducted.The search was carried out on the PubMed,Scopus,Google Scholar,and CISMeF databases from 1 January 2000 to 19 March 2020.Preferred Reporting Items for Systematic Reviews and Meta-Analyses(PRISMA)recommendations were followed in selecting items of interest.Thirty-four articles were included in the systematic review,including 15 articles on oncological testicular sperm extraction(oncoTESE),18 articles on postgonadotoxic treatment TESE and 1 article on both oncoTESE and postgonadotoxic treatment TESE.Testicular sperm freezing was possible for 42.9%to 57.7%of patients before gonadotoxic treatment and for 32.4%to 75.5%of patients after gonadotoxic treatment,depending on the type of malignant disease.Although no formal conclusion could be drawn about the chances to obtain sperm in specific situations,our results suggest that TESE can be proposed before and after gonadotoxic treatment.Before treatment,TESE is more often proposed for men with testicular cancer presenting with azoospermia since TESE can be performed simultaneously with tumor removal or orchiectomy.After chemotherapy,TESE may be planned if the patient presents with persistent azoospermia.
文摘They have made a good description of a well-defined and homogenous population, with a sample of included donors that was quite large. This population was interesting since it involved young men for whom fertility status is mostly unknown. Indeed, most of the previously published studies focus on male partners of infertile couples or on fertile sperm donors. In this population, they found that the sperm quality was not optimal, with 3.4% and 0.5% of those young donors presenting oligozoospermia and azoospermia, respectively.
