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Single-Cell Sequencing Reveals an Intrinsic Heterogeneity of the Preovulatory Follicular Microenvironment. Biomolecules 2022; 12:biom12020231. [PMID: 35204732 PMCID: PMC8961562 DOI: 10.3390/biom12020231] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/19/2022] [Accepted: 01/26/2022] [Indexed: 02/04/2023] Open
Abstract
The follicular microenvironment, including intra-follicular granulosa cells (GCs), is responsible for oocyte maturation and subsequent ovulation. However, the functions of GCs and cellular components of the follicular microenvironment in preovulatory follicles have not been extensively explored. Here, we surveyed the single-cell transcriptome of the follicular microenvironment around MII oocytes in six human preovulatory follicles in in vitro fertilization. There were six different cell types in the preovulatory follicles, including GCs and various immune cells. In GCs, we identified nine different functional clusters with different functional transcriptomic profiles, including specific clusters involved in inflammatory responses and adhesive function. Follicular macrophages are involved in immune responses, extracellular matrix remoulding and assist GCs in promoting the oocyte meiotic resumption. Interestingly, we observed that the specific terminal state subcluster of GCs with high levels of adhesive-related molecules should result in macrophage recruitment and residence, further contributing to an obvious heterogeneity of the immune cell proportion in preovulatory follicles from different patients. Our results provide a comprehensive understanding of the transcriptomic landscape of the preovulatory follicular microenvironment at the single-cell level. It provides valuable insights into understanding the regulation of the oocyte maturation and ovulation process, offering potential clues for the diagnosis and treatment of oocyte-maturation-related and ovulation-related diseases.
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Pizarro BM, Cordeiro A, Reginatto MW, Campos SPC, Mancebo ACA, Areas PCF, Antunes RA, Souza MDCB, Oliveira KJ, Bloise FF, Bloise E, Fortunato RS, Ortiga-Carvalho TM. Estradiol and Progesterone Levels are Related to Redox Status in the Follicular Fluid During in vitro Fertilization. J Endocr Soc 2020; 4:bvaa064. [PMID: 32666010 PMCID: PMC7326473 DOI: 10.1210/jendso/bvaa064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
Studies have reported a possible association between the levels of oxidative stress biomarkers in follicular fluid (FF) and infertility treatment outcomes. FF analysis can provide important information about oocyte quality. This study aimed to evaluate the possible correlation between oxidative stress biomarker and intrafollicular hormone levels and clinical and laboratory parameters in women during controlled ovarian stimulation. These women were undergoing in vitro fertilization with intracytoplasmic sperm injection (ICSI).The FF samples were acquired from September 2012 to February 2014 from women undergoing private fertility treatment in Rio de Janeiro, Brazil. A total of 196 women who were undergoing ICSI and had different infertility diagnoses were recruited. The FF from each patient (average patient age of 36.3 ± 4.3 years) was collected following puncture of just one follicle with the largest diameter. After ruling out blood contamination by spectrophotometry, 163 patient samples were utilized in the study. In the FF, the progesterone levels were negatively correlated with (a) hydrogen peroxide scavenging capacity (HPSC) (r = −0.294, P < 0.0001), (b) total number of follicles (r = −0.246, P < 0.001) and (c) total number of oocytes punctured (r = −0.268, P = 0.0001). The concentration of serum estradiol exhibited a positive correlation with intrafollicular HPSC (r = 0.165, P = 0.037). Our data indicate that the FF levels of estradiol and progesterone are related to the FF redox status, which is closely associated with the number of oocytes obtained during ICSI procedures.
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Affiliation(s)
- Bartira Marques Pizarro
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aline Cordeiro
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mila Weydtt Reginatto
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Samir P C Campos
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Roberto Azevedo Antunes
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Fertipraxis, Clinic of Human Reproduction, Rio de Janeiro, Brazil.,Maternal Hospital of the Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Karen Jesus Oliveira
- Laboratory of Endocrine Physiology and Metabolism, Physiology and Pharmacology, Federal Fluminense University, Niteroi, Brazil
| | - Flavia Fonseca Bloise
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Enrrico Bloise
- Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo Soares Fortunato
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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The influence of zero-valent iron nanoparticles on oocytes and surrounding follicular cells in mice. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-00978-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Shaw S, Ghosh D, Kumar U, Panjwani U, Kumar B. Impact of high altitude on key determinants of female reproductive health: a review. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2018; 62:2045-2055. [PMID: 30218203 DOI: 10.1007/s00484-018-1609-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
Imperishable research work was done on females visiting high-altitude (HA) areas for recreational activities or job purposes as well as on female HA natives. Hypoxia at HA is an unavoidable condition that affects the determinants of female reproductive functions like, the age of menarche and menopause, whole reproductive span, hormone synthesis, and fertility. This review will emphasize whether HA hypoxia is a threat to women: residents or visitors by analyzing these proximate determinants. Delayed menarcheal and advanced menopausal age was found to shorten the reproductive span in some HA populations, whereas in some cases, menstrual cycle was also reported to be irregular. In addition, the completed fertility rate (CFR) was increased when people migrated to lower altitude. Altered stress hormones and reproductive hormones were observed in sea-level females exposed to HA. Oxidative stress (OS) at HA was also reviewed to explain the probable reasons for the observed changes in these determinants because disturbed redox homeostasis may be a connecting link, affecting the reproductive functions. In conclusion, HA hypoxia plays a crucial role on various determinants of female reproductive health and this review will be helpful for more precise study along with the probable underlying mechanisms responsible for the changes in female reproductive functions at HA.
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Affiliation(s)
- Snigdha Shaw
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India
| | - Dishari Ghosh
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India.
| | - Utkarsha Kumar
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India
| | - Usha Panjwani
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India
| | - Bhuvnesh Kumar
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India
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Yılmaz Doğru H, Benli İ, Doğru S. The oxidative/anti-oxidative effects of sevoflurane on reproductive system of females: An experimental study. Turk J Obstet Gynecol 2017; 14:228-232. [PMID: 29379665 PMCID: PMC5780566 DOI: 10.4274/tjod.78871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 11/02/2017] [Indexed: 01/06/2023] Open
Abstract
Objective: A permanent balance exists between the production and elimination of reactive oxygen species in all living organisms. The aim of this study was to evaluate the effects of sevoflurane possibly causing an imbalance in the equation of reactive oxygen species on the female rat reproductive system. Materials and Methods: A total of 30 adult female Wistar-albino rats were placed into an anesthesia chamber to administer sevoflurane. Rats were randomly divided into six groups, each group consisting of five rats: the control group received 2 L/min O2 18 min/day for seven days; the first group received 1 minimum alveolar concentration (MAC) of sevoflurane and 2 L/min O2 18 min/day for seven days; the second group received 1 MAC of sevoflurane and 2 L/min O2 18 min/day for seven days with no treatment for the next seven days; the third group received 1 MAC of sevoflurane and 2 L/min O2 18 min/day for 14 days; the fourth group received 1 MAC of sevoflurane and 2 L/min O2 18 min/day for 14 days with no treatment for the next seven days; and the fifth group received 1 MAC of sevoflurane and 2 L/min O2 18 min/day for 14 days with no treatment for the next 14 days. Bilateral ovaries were subsequently removed for biochemical analysis of tissue anti-oxidative enzyme levels. Results: Slight fluctuations were detected in mean nitric oxide, prostaglandin E2, prostaglandin F2-alpha, superoxide dismutase, glutathione peroxidase, malondialdehyde, alginate dialdehyde, and xanthine oxidase levels between the groups; however, the differences were not significant (p>0.05). Conclusion: Sevoflurane has no effect on the activity of anti-oxidant systems in the rat ovary.
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Affiliation(s)
- Hatice Yılmaz Doğru
- Gaziosmanpaşa University Faculty of Medicine, Department of Obstetrics and Gynecology, Tokat, Turkey
| | - İsmail Benli
- Gaziosmanpaşa University Faculty of Medicine, Department of Biochemistry, Tokat, Turkey
| | - Serkan Doğru
- Gaziosmanpaşa University Faculty of Medicine, Department of Anesthesiology and Reanimation, Tokat, Turkey
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Bastu E, Zeybek U, Gurel Gurevin E, Yüksel Ozgor B, Celik F, Okumus N, Demiral I, Dural O, Celik C, Bulut H, Ilkay Armutak E, Baysal B, Buyru F, Yeh J. Effects of Irisin and Exercise on Metabolic Parameters and Reproductive Hormone Levels in High-Fat Diet-Induced Obese Female Mice. Reprod Sci 2017; 25:281-291. [DOI: 10.1177/1933719117711264] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ercan Bastu
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University School of Medicine, Istanbul, Turkey
| | - Umit Zeybek
- Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Ebru Gurel Gurevin
- Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Bahar Yüksel Ozgor
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University School of Medicine, Istanbul, Turkey
| | - Faruk Celik
- Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Nazli Okumus
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University School of Medicine, Istanbul, Turkey
| | - Irem Demiral
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University School of Medicine, Istanbul, Turkey
| | - Ozlem Dural
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University School of Medicine, Istanbul, Turkey
| | - Cem Celik
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University School of Medicine, Istanbul, Turkey
| | - Huri Bulut
- Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Elif Ilkay Armutak
- Department of Histology and Embryology, Faculty of Veterinary, Istanbul University, Istanbul, Turkey
| | - Bulent Baysal
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University School of Medicine, Istanbul, Turkey
| | - Faruk Buyru
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University School of Medicine, Istanbul, Turkey
| | - John Yeh
- Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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Quintero Quinchia YC, Cardona Maya WD. Óxido nítrico y fertilidad masculina: relación directa con los parámetros seminales. Rev Urol 2017. [DOI: 10.1016/j.uroco.2016.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Relationship between oxidative stress and clinical pregnancy in assisted reproductive technology treatment cycles. J Assist Reprod Genet 2013; 30:765-72. [PMID: 23666546 PMCID: PMC3696458 DOI: 10.1007/s10815-013-0005-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 04/22/2013] [Indexed: 11/17/2022] Open
Abstract
Purpose To examine the relationship between serum total oxidant (TOS) and antioxidant (TAS) levels and clinical pregnancy in assisted reproductive technology (ART) cycles. Methods Prior to and after oocyte pick-up (OPU) and embryo transfer (ET), blood samples were collected from gynecologically normal females (n = 70) who were enrolled for ART solely due to male factor infertility. TAS, TOS levels and oxidative stress indexes (OSI: TOS/TAS) in four phases of treatment cycle (pre and post OPU and ET) between clinically pregnant and non-pregnant patients were compared. Critical cut-off values of significantly different TAS, TOS levels and OSIes for clinical pregnancy were established. Results The TAS levels in patients with clinical pregnancy were significantly higher in all of the four phases of the cycle. Post-OPU and pre-ET TOS levels were significantly higher in clinically pregnant patients. According to OSIes; only the pre-OPU OSI was significantly lower in clinically pregnant patients compared with non-pregnant ones. Moreover, the highest area under the ROC curve (AUC) from the seven different significant measurements [1) pre-OPU OSI, 2) pre-OPU TAS, 3) post-OPU TAS, 4) pre-ET TAS, 5) post-ET TAS, 6) post-OPU TOS, 7) pre-ET TOS] was related to pre-OPU OSI. Conclusions In ART cycles, women with a higher total antioxidant status prior to and after OPU and prior to and after ET have an increased probability of clinical pregnancy. Additionally; OSI before OPU was one of the most important determinants for clinical pregnancy, so the oxidant and antioxidant balance is as important as the antioxidant concentration alone.
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Hussein HA, Boryczko Z, Bostedt H. Acid-Base Parameters and Steroid Concentrations in Pre-Ovulatory Follicles and Plasma of Lactating Dairy Cows with Spontaneous and Synchronized Oestrus or Follicular Cyst. Reprod Domest Anim 2013; 48:833-9. [DOI: 10.1111/rda.12171] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 03/10/2013] [Indexed: 12/01/2022]
Affiliation(s)
- HA Hussein
- Theriogenology Department; Faculty of Veterinary Medicine; Assiut University; Assiut; Egypt
| | - Z Boryczko
- Department of Animal Reproduction; Faculty of Veterinary Medicine; Agricultural University; Warsaw; Poland
| | - H Bostedt
- Institute of Obstetrics, Gynecology and Andrology; Faculty of Veterinary Medicine; Justus-Liebig-university; Giessen; Germany
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A comparative study on oxidative and antioxidative markers of serum and follicular fluid in GnRH agonist and antagonist cycles. J Assist Reprod Genet 2012; 29:1175-83. [PMID: 22886458 DOI: 10.1007/s10815-012-9843-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 07/30/2012] [Indexed: 10/28/2022] Open
Abstract
OBJECTIVE To determine whether concentrations of oxidative stress markers of follicular fluid and serum are different in GnRH agonist protocol from GnRH antagonist protocol. MATERIAL AND METHOD This was a cross-sectional study. Eighty-four women undergoing controlled ovarian stimulation with either GnRH agonist (n = 39) or GnRH antagonist protocols (n = 45) for IVF/ICSI treatment were assigned by a physician. Blood was obtained at the time of oocyte retrieval, and follicular fluid (FF) from the mature follicles of each ovary was centrifuged and frozen until analysis. Malondialdehyde (MDA), nitric oxide (NO), protein carbonyl (PC), hydroxyl proline (OH-P), sodium oxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GSH-Px), adenosine deaminase (ADA) and xanthine oxidase (XO) were assessed in the serum and follicular fluid of each participants. RESULTS The mean serum concentrations of GSH-Px, GSH and MDA were lower in the GnRH antagonist group compared to GnRH agonist group, but mean serum SOD was higher in the GnRH antagonist group. The mean follicular SOD, ADA and NO were higher in GnRH antagonist group than GnRH agonist group. The IVF/ICSI outcomes were similar in both groups. CONCLUSION(S) GnRH antagonist protocol is associated with increased oxidative stress. The relation of GnRH analogues with oxidative stress and its implication in follicular growth needs to be addressed in further studies.
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Antosova M, Plevkova J, Strapkova A, Buday T. Nitric oxide—Important messenger in human body. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ojmip.2012.23014] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Follicular fluid nitric oxide and ascorbic acid concentrations in relation to follicle size, functional status and stage of estrous cycle in buffalo. Anim Reprod Sci 2011; 125:62-8. [DOI: 10.1016/j.anireprosci.2011.03.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2010] [Revised: 03/11/2011] [Accepted: 03/30/2011] [Indexed: 11/22/2022]
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Di Francesco S, Boccia L, Campanile G, Di Palo R, Vecchio D, Neglia G, Zicarelli L, Gasparrini B. The effect of season on oocyte quality and developmental competence in Italian Mediterranean buffaloes (Bubalus bubalis). Anim Reprod Sci 2010; 123:48-53. [PMID: 21168984 DOI: 10.1016/j.anireprosci.2010.11.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 11/05/2010] [Accepted: 11/08/2010] [Indexed: 10/18/2022]
Abstract
At Italian latitudes, buffalo (Bubalus bubalis) is a seasonally polyestrous species, showing an improved reproductive efficiency when daylight decreases (autumn). The aim of the present study was to evaluate the influence of the season on buffalo oocyte recovery rate, on oocyte quality, assessed on morphological basis, and developmental competence after in vitro fertilization. For this purpose, buffalo ovaries were collected from a local abattoir and the oocytes obtained by aspirating the follicles were evaluated, classified and, if considered of good quality, devolved to the different procedures of IVEP. In general, no differences were found in terms of oocyte recovery per ovary among seasons, but interestingly, the percentage of small oocytes was higher (P<0.05) during spring and summer (0.9±0.1 and 0.9±0.2) compared to autumn and winter (0.3±0.1 and 0.2±0.1). Both cleavage and embryo rate increased during the period from October to December (71.7±3.1 and 26.5±2.1, respectively) compared to the period from April to June (58.0±2.4 and 18.8±1.6, respectively), thus reflecting the in vivo reproductive behavior. Nevertheless, it is worth emphasizing that transferrable embryos were produced in vitro, even during the unfavorable season, but with decreased efficiency. In conclusion, these results suggest to avoid the oocyte collection during spring when planning OPU trials in order to save resources and improve the benefits/costs ratio.
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Affiliation(s)
- Serena Di Francesco
- DISCIZIA, Faculty of Veterinary Medicine, Federico II University, Via F. Delpino 1, Naples, Italy
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14
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Melatonin and the ovary: physiological and pathophysiological implications. Fertil Steril 2009; 92:328-43. [DOI: 10.1016/j.fertnstert.2008.05.016] [Citation(s) in RCA: 246] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Revised: 05/02/2008] [Accepted: 05/05/2008] [Indexed: 10/21/2022]
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15
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TAKETANI T, YAMAGATA Y, TAKASAKI A, MATSUOKA A, TAMURA H, SUGINO N. Effects of growth hormone and insulin-like growth factor 1 on progesterone production in human luteinized granulosa cells. Fertil Steril 2008; 90:744-8. [DOI: 10.1016/j.fertnstert.2007.07.1304] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2007] [Revised: 06/18/2007] [Accepted: 06/18/2007] [Indexed: 11/26/2022]
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Krysko DV, Diez-Fraile A, Criel G, Svistunov AA, Vandenabeele P, D’Herde K. Life and death of female gametes during oogenesis and folliculogenesis. Apoptosis 2008; 13:1065-87. [DOI: 10.1007/s10495-008-0238-1] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2008] [Accepted: 06/26/2008] [Indexed: 12/27/2022]
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Voznesenskaya TY, Blashkiv TV. Effects of NO-synthase inhibitors on maturation mouse oocytes in cumulus-oocyte complexes. Russ J Dev Biol 2006. [DOI: 10.1134/s1062360406060087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Józwik M, Józwik M, Teng C, Battaglia FC. Amino acid, ammonia and urea concentrations in human pre-ovulatory ovarian follicular fluid. Hum Reprod 2006; 21:2776-82. [PMID: 16950828 DOI: 10.1093/humrep/del038] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND This study aimed to determine amino acid (AA), ammonia and urea concentrations in human ovarian follicular fluid and to compare these concentrations with those in the circulation. METHODS Samples of pre-ovulatory follicular fluid and peripheral venous blood were obtained from 14 IVF patients. High-performance liquid chromatography (HPLC) measurements of 25 AAs were the main outcome measures. RESULTS There was a significant gradient of most AAs from plasma to follicular fluid, with the exception of glutamate, which demonstrated a three-fold increase in follicular fluid concentration (70.0 +/- 3.80 microM) compared with plasma (23.18 +/- 2.20 microM; P < 0.001). The plasma-to-follicular fluid concentration difference for glutamine (81.83 +/- 9.2 microM) was greatest among all AAs. Among essential AAs, this difference was greatest for the branched-chain AAs, isoleucine, leucine and valine. Ammonia concentrations in follicular fluid and blood were 38.87 +/- 2.23 and 22.11 +/- 1.96 microM, respectively (P < 0.001). Urea concentration in follicular fluid was 3.37 +/- 0.18 mM, a value not significantly different from plasma concentration (3.36 +/- 0.22 mM; P = 0.911). CONCLUSIONS These plasma-follicular fluid differences may reflect both the utilization of AAs and the transport characteristics of the follicular cells. There is accumulation of glutamate and ammonia in pre-ovulatory follicular fluid. The data for urea are consistent with transport by passive diffusion, with no evidence of an active urea cycle in the cells of the follicle.
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Affiliation(s)
- Marcin Józwik
- Department of Gynecology, Medical University of Bialystok, Bialystok, Poland.
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Feldmann G, Benifla JL, Madelenat P. L'apoptose des cellules de la granulosa peut-elle être considérée comme un marqueur prédictif du succès de la fécondation in vitro ? ACTA ACUST UNITED AC 2006; 34:574-82. [PMID: 16777460 DOI: 10.1016/j.gyobfe.2006.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2006] [Accepted: 04/07/2006] [Indexed: 11/23/2022]
Abstract
During in vitro fertilization (IVF) morphological criteria are the only means usable today to select embryos before their uterine transfer in order to obtain pregnancy with the best chances of success. Since several years many attempts have been made to find more functional means. Quantification of apoptosis of granulosa cells has been proposed for this purpose. The aim of this review is to take stock of our knowledge on apoptosis and its mechanisms in granulosa cells and to analyse how quantification of these apoptotic cells could be a reliable and predictive marker of success for an attempt of an IVF in terms of pregnancy.
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Affiliation(s)
- G Feldmann
- Service d'histologie et de biologie de la reproduction, hôpital Bichat-Claude-Bernard (APHP), 46, rue Henri-Huchard, 75018 Paris, France.
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Voznesenskaya TY, Blashkiv TV. Estradiol-dependent effect of nitric oxide on meiotic maturation of mouse oocytes. Bull Exp Biol Med 2006; 140:378-80. [PMID: 16671556 DOI: 10.1007/s10517-005-0494-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Estradiol dipropionate decreased the number of oocytes in mouse ovary and suppressed meiotic maturation of these cells. Administration of NO donors sodium nitroprusside and S-nitroso-N-acetylpenicillamine increased the ability of ovarian oocytes to complete meiotic maturation and counteracted the effect of estradiol dipropionate. Our results suggest that estradiol is involved in the regulation of production and release of ovarian NO.
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Affiliation(s)
- T Y Voznesenskaya
- Department of Immunology and Cytotoxic Sera, A. A. Bogomolets Institute of Physiology, Ukrainian Academy of Sciences, Kiev.
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Baka S, Malamitsi-Puchner A. Novel follicular fluid factors influencing oocyte developmental potential in IVF: a review. Reprod Biomed Online 2006; 12:500-6. [PMID: 16740225 DOI: 10.1016/s1472-6483(10)62005-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aim of IVF centres today is to obtain high quality, developmentally competent embryos, and thus increase live birth rates. Apoptosis in the patient's follicles in among the factors that will determine IVF outcome. Follicular fluid constitutes an important microenvironment, containing apoptotic factors and others, which influence oocyte growth. The sFas-sFas ligand system is present in the follicular fluid and may play a role in preventing oocyte aresia during folliculogenesis. Levels of the anti-apoptotic molecule sFas may be related positively to oocyte maturation and negatively to fertilization and embryo quality. Reactive oxygen species exert a toxic effect when found in high concentrations in the follicular fluid, whereas in low concentrations they might be indispensable for pregnancy and therefore serve as a potential marker for successful IVF outcome. Nitric oxide plays a dual role; in some cells promoting and in others inhibiting apoptosis. Nitric oxide production is stimulated by TNF-alpha, so the latter is also implicated in the apoptotic process. Hyaluronan, a disaccharide, whose functions have not been fully elucidated, is a valuable predictor of oocyte fertilization. Gelatinases are responsible for remodelling during follicular atresia. In conclusion, a number of factors found in the follicular fluid, some involved in apoptosis, can infulence assisted reproduction.
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Affiliation(s)
- Stavroula Baka
- 2nd Department of Obstetrics and Gynecology, University of Athens, Aretaieion Hospital, Athens, Greece
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Agarwal A, Gupta S, Sharma RK. Role of oxidative stress in female reproduction. Reprod Biol Endocrinol 2005; 3:28. [PMID: 16018814 PMCID: PMC1215514 DOI: 10.1186/1477-7827-3-28] [Citation(s) in RCA: 884] [Impact Index Per Article: 46.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2005] [Accepted: 07/14/2005] [Indexed: 01/18/2023] Open
Abstract
In a healthy body, ROS (reactive oxygen species) and antioxidants remain in balance. When the balance is disrupted towards an overabundance of ROS, oxidative stress (OS) occurs. OS influences the entire reproductive lifespan of a woman and even thereafter (i.e. menopause). OS results from an imbalance between prooxidants (free radical species) and the body's scavenging ability (antioxidants). ROS are a double-edged sword - they serve as key signal molecules in physiological processes but also have a role in pathological processes involving the female reproductive tract. ROS affect multiple physiological processes from oocyte maturation to fertilization, embryo development and pregnancy. It has been suggested that OS modulates the age-related decline in fertility. It plays a role during pregnancy and normal parturition and in initiation of preterm labor. Most ovarian cancers appear in the surface epithelium, and repetitive ovulation has been thought to be a causative factor. Ovulation-induced oxidative base damage and damage to DNA of the ovarian epithelium can be prevented by antioxidants. There is growing literature on the effects of OS in female reproduction with involvement in the pathophysiology of preeclampsia, hydatidiform mole, free radical-induced birth defects and other situations such as abortions. Numerous studies have shown that OS plays a role in the pathophysiology of infertility and assisted fertility. There is some evidence of its role in endometriosis, tubal and peritoneal factor infertility and unexplained infertility. This article reviews the role OS plays in normal cycling ovaries, follicular development and cyclical endometrial changes. It also discusses OS-related female infertility and how it influences the outcomes of assisted reproductive techniques. The review comprehensively explores the literature for evidence of the role of oxidative stress in conditions such as abortions, preeclampsia, hydatidiform mole, fetal embryopathies, preterm labour and preeclampsia and gestational diabetes. The review also addresses the growing literature on the role of nitric oxide species in female reproduction. The involvement of nitric oxide species in regulation of endometrial and ovarian function, etiopathogenesis of endometriosis, and maintenance of uterine quiescence, initiation of labour and ripening of cervix at parturition is discussed. Complex interplay between cytokines and oxidative stress in the etiology of female reproductive disorders is discussed. Oxidant status of the cell modulates angiogenesis, which is critical for follicular growth, corpus luteum formation endometrial differentiation and embryonic growth is also highlighted in the review. Strategies to overcome oxidative stress and enhance fertility, both natural and assisted are delineated. Early interventions being investigated for prevention of preeclampsia are enumerated. Trials investigating combination intervention strategy of vitamin E and vitamin C supplementation in preventing preeclampsia are highlighted. Antioxidants are powerful and there are few trials investigating antioxidant supplementation in female reproduction. However, before clinicians recommend antioxidants, randomized controlled trials with sufficient power are necessary to prove the efficacy of antioxidant supplementation in disorders of female reproduction. Serial measurement of oxidative stress biomarkers in longitudinal studies may help delineate the etiology of some of the diosorders in female reproduction such as preeclampsia.
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Affiliation(s)
- Ashok Agarwal
- Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Department of Obstetrics-Gynecology; The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
| | - Sajal Gupta
- Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Department of Obstetrics-Gynecology; The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
| | - Rakesh K Sharma
- Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Department of Obstetrics-Gynecology; The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
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Abstract
Cells living under aerobic conditions always face oxygen paradox. Oxygen is necessary for cells to maintain their lives. However, reactive oxygen species such as superoxide radical ( ), hydroxyl radical (OH-) and hydrogen peroxide (H2O2) are generated from oxygen and damage cells. Oxidative stress occurs as a consequence of excessive production of reactive oxygen species and impaired antioxidant defense systems. Antioxidant enzymes include: superoxide dismutase (SOD), which is a specific enzyme to scavenge superoxide radicals; copper-zinc SOD, located in the cytosol; and manganese SOD, located in the mitochondria. Both types of SOD belong to the first enzymatic step to scavenge superoxide radicals. It has been reported that a number of local factors such as cytokines, growth factors and eicosanoids are involved in the regulation of ovarian function, in addition to gonadotropins and ovarian steroid hormones. Since reactive oxygen species are generated and SOD is expressed in the ovary, there is a possibility that reactive oxygen species and SOD work as local regulators of ovarian function. The present review reports that reactive oxygen species and their scavenging systems play important roles in several processes of reproductive physiology, including follicular development, oocyte maturation, ovulation, corpus luteum function and follicular atresia. (Reprod Med Biol 2005; 4: 31- 45).
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Affiliation(s)
- Norihiro Sugino
- Division of Obstetrics and Gynecology, Department of Reproductive, Pediatric and Infectious Science, Yamaguchi University School of Medicine, Minamikogushi, Ube, Japan
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Agarwal A, Gupta S, Sharma R. Oxidative stress and its implications in female infertility – a clinician's perspective. Reprod Biomed Online 2005; 11:641-50. [PMID: 16409717 DOI: 10.1016/s1472-6483(10)61174-1] [Citation(s) in RCA: 222] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reactive oxygen species (ROS) have a role in the modulation of gamete quality and gamete interaction. Generation of ROS is inherent in spermatozoa and contaminating leukocytes. ROS influence spermatozoa, oocytes, embryos and their environment. Oxidative stress (OS) mediates peroxidative damage to the sperm membrane and induces nuclear DNA damage. ROS can modulate the fertilizing capabilities of the spermatozoa. There is extensive literature on OS and its role in male infertility and sperm DNA damage and its effects on assisted reproductive techniques. Evidence is accumulating on the role of ROS in female reproduction. Many animal and human studies have elucidated a role for ROS in oocyte development, maturation, follicular atresia, corpus luteum function and luteolysis. OS-mediated precipitation of pathologies in the female reproductive tract is similar to those involved in male infertility. OS influences the oocyte and embryo quality and thus the fertilization rates. ROS appears to play a significant role in the modulation of gamete interaction and also for successful fertilization to take place. ROS in culture media may impact post-fertilization development, i.e. cleavage rate, blastocyst yield and quality (indicators of assisted reproduction outcomes). OS is reported to affect both natural and assisted fertility. Antioxidant strategies should be able to intercept both extracellular and intracellular ROS. This review discusses the sources of ROS in media used in IVF-embryo transfer and strategies to overcome OS in oocyte in-vitro maturation, in-vitro culture and sperm preparation techniques.
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Affiliation(s)
- Ashok Agarwal
- Centre for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Department of Obstetrics-Gynecology and Glickman Urological Institute, The Cleveland Clinic Foundation, OH 44195, USA.
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Tao Y, Fu Z, Zhang M, Xia G, Yang J, Xie H. Immunohistochemical localization of inducible and endothelial nitric oxide synthase in porcine ovaries and effects of NO on antrum formation and oocyte meiotic maturation. Mol Cell Endocrinol 2004; 222:93-103. [PMID: 15249129 DOI: 10.1016/j.mce.2004.04.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2003] [Accepted: 04/27/2004] [Indexed: 11/25/2022]
Abstract
The present study is to investigate the immunolocalization of endothelial and inducible nitric oxide synthase (eNOS, iNOS) in porcine ovary and the effect of nitric oxide (NO) on antrum formation and oocyte meiotic resumption. In Experiment 1, preantral follicles (250-300 microm in diameter) were cultured in 0 (Control), 0.1, 0.3, 0.5 or 1 mM sodium nitroprusside (SNP), a NO donor. In Experiment 2, the cumulus-oocyte complexes (COCs) aspirated from medium follicles (3-6 mm in diameter) were incubated in 0.1mM SNP or two inhibitors for NOS, 10 mM aminoguanidine bicarbonate salt (AG) or 1 mM Nomega-nitro-l-arginine methyl ester (L-NAME), alone or concomitantly. In Experiment 3, ovarian tissues, corpus luteum (CL), corpus albican (CA) and COCs from small (1-2 mm in diameter), medium (3-6 mm) and large follicles (7-10 mm) were isolated, rinsed, fixed, paraffin embedded and stained by the conventional avidin-biotin complex method for the detection of eNOS and iNOS production. The results showed that 0.1mM SNP had no effect on antrum formation (P > 0.05) while 0.3, 0.5 or 1 mM significantly inhibited the antrum formation (P < 0.05). AG markedly inhibited porcine oocyte meiotic resumption (P < 0.05) while L-NAME inhibited first polar body (PB1) extrusion (P < 0.05). The immunoreactivity of eNOS in early antral follicles was restricted to oocyte and it increased from small, medium to large follicle-enclosed oocytes. Cumulus cells from large follicles showed weak eNOS immunoreactivity but those from small or medium follicles not. In CL, eNOS-positive staining was shown in granulosa lutein cells. In CA, it was in some parenchymal cells. In contrast, no immunoreactivity for iNOS was found in primordial, early antral follicle or the COCs aspirated from small and medium follicles. The large follicle-enclosed oocyte showed weak immunoreactivity. In CL, some granulosa lutein cells showed iNOS-positive cytoplasm. Such immunostaining was not found in CA. The results demonstrate that porcine ovaries have distinct cell-specific expression of both eNOS and iNOS, and that NO derived from both NOS is actively involved in meiotic resumption. Nitric oxide is not involved in the antrum formation of preantral follicles but exogenous NO inhibits the antrum formation. Endothelial nitric oxide synthase and inducible nitric oxide synthase might be differently functional in CL development and regression.
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Affiliation(s)
- Yong Tao
- Animal Physiology and Biochemistry Department, College of Biological Sciences, China Agricultural University, 100094 Beijing, China
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Nakamura Y, Tamura H, Takayama H, Kato H. Increased endogenous level of melatonin in preovulatory human follicles does not directly influence progesterone production. Fertil Steril 2003; 80:1012-6. [PMID: 14556825 DOI: 10.1016/s0015-0282(03)01008-2] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To study the role of follicular melatonin on steroid production by human preovulatory follicles. DESIGN In vivo comparative and in vitro culture studies. SETTING University hospital. PATIENT(S) Thirty-six patients with tubal and/or male, but not endocrinological, infertility factors. INTERVENTION(S) Follicular fluid collection during IVF. In vitro granulosa cell culture from luteinizing or growing Graafian follicles. MAIN OUTCOME MEASURE(S) Follicular melatonin, P, T, and E(2) concentrations. In vitro P production by granulosa cells. RESULT(S) There was a positive correlation between follicular melatonin and P concentrations. Melatonin did not stimulate in vitro P production by granulosa cells from luteinizing or growing follicles. Melatonin, P, and E(2) concentrations were significantly higher, but T concentrations were lower, in large follicles than in small follicles. CONCLUSION(S) Preovulatory follicles contain a high amount of melatonin compared with that in small immature follicles; melatonin may play an important, but indirect, role in P production by human granulosa cells.
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Affiliation(s)
- Yasuhiko Nakamura
- Department of Reproductive, Pediatric, and Infectious Science, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan.
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Pinto CRF, Paccamonti DL, Eilts BE, Venugopal CS, Short CR, Gentry LR, Thompson DL, Godke RA. Concentrations of nitric oxide in equine preovulatory follicles before and after administration of human chorionic gonadotropin. Theriogenology 2003; 60:819-27. [PMID: 12935860 DOI: 10.1016/s0093-691x(03)00096-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study, follicular fluids of estrous mares treated with saline solution (Control) or nitric oxide synthase (NOS) inhibitors were analyzed for nitric oxide (NO), estradiol-17beta (E2) and progesterone (P4) concentrations before and 36h after administration of human chorionic gonadotropin (hCG). Follicular fluids obtained before (0h) hCG administration from control mares had lower concentrations of NO than those obtained 36h after administration of hCG (58.3+/-17.8 micromol versus 340.4+/-57.7 micromol; P<0.05). A similar pattern was also noted for intrafollicular P4 in control mares, which had lower concentrations of intrafollicular P4 before hCG than 36h post-hCG administration (P<0.05). As expected, E2 concentrations of control follicles sampled before hCG administration were higher than those sampled 36h post-hCG administration (P<0.05). However, the E2 concentrations in follicles of mares treated with the NOS inhibitors N(omega)-nitro-L-arginine methyl ester (L-NAME) or aminoguanidine (AG) did not decrease after hCG administration, unlike those in control mares (P>0.10). In addition, mares treated with NOS inhibitors had lower intrafollicular concentrations of NO and P4 than control mares, both before and after hCG administration (P<0.05). Increased intrafollicular concentrations of NO in control, hCG-stimulated mares provide evidence for the presence of an NO-generating system in the equine preovulatory follicle that is likely upregulated following administration of hCG.
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Affiliation(s)
- C R F Pinto
- Equine Health Studies Program, Department of Comparative Biomedical Sciences, Louisiana State University and Agricultural Center, Baton Rouge, LA 70803, USA.
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Adiga SK, Kumar P, Bijoor SN. Lactate dehydrogenase estimation in follicular fluid: correlation with patient age, follicle size and super ovulation in ART cycles. Eur J Obstet Gynecol Reprod Biol 2002; 105:150-4. [PMID: 12381478 DOI: 10.1016/s0301-2115(02)00193-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To quantify the lactate dehydrogenase (LDH) level in human follicular fluids, and to define its relationship with follicle size, patient age, serum estradiol (E(2)) level, and the amount of gonadotropins administered during superovulation in ART cycles. STUDY DESIGN In this prospective study, 21 women undergoing ART treatment were selected. Follicular fluid from the largest follicle of both ovaries was collected from each patient on the day of oocyte aspiration and analyzed for LDH. Serum oestradiol was estimated on the day of hCG administration. Relationship between LDH level and (1) patient age, (2) follicle size, (3) follicle stimulating hormone administered during superovulation period and (4) serum oestradiol was studied. RESULT(S) LDH activity increased with chronological age of the patient. As follicular size (diameter) increased, increase in the LDH concentration in follicular fluid was observed. Serum estradiol level did not show any relationship with LDH activity. Similarly, administration of various doses of follicle stimulating hormone during superovulation did not show any correlation with LDH level. CONCLUSION(S) Follicular fluid LDH level has shown association with patient age and the follicle size, however, no significant association was found with other parameters studied.
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Affiliation(s)
- Satish Kumar Adiga
- Manipal Assisted Reproduction Centre, Kasturba Medical College, Manipal 576 119, India.
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Sengoku K, Takuma N, Horikawa M, Tsuchiya K, Komori H, Sharifa D, Tamate K, Ishikawa M. Requirement of nitric oxide for murine oocyte maturation, embryo development, and trophoblast outgrowth in vitro. Mol Reprod Dev 2001; 58:262-8. [PMID: 11170266 DOI: 10.1002/1098-2795(200103)58:3<262::aid-mrd3>3.0.co;2-8] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We investigated the extent to which NO participates in the developmental competence (oocyte maturation, fertilization and embryo development to blastocyst) using an in vitro culture system adding sodium nitroprusside (SNP), NO donor, and NOS inhibitor (N-omega-nitro-L-arginine methyl ester, L-NAME). We also assessed the effects of NO/NOS system on blastocyst implantation using an in vitro trophoblast outgrowth assay. The treatment of low concentrations of SNP (10(-7) M) significantly stimulated meiotic maturation to metaphase II stages in cumulus enclosed oocytes. In contrast, 10(-3) and 10(-5) M L-NAME demonstrated a significant suppression in resumption of meiosis. This inhibition was reversed by the addition of SNP. No development beyond the four-cell stage was observed by the addition of high concentration of SNP (10(-3) M). Inhibition of embryo development, especially the conversion of morulae to blastocysts, was also observed in the treatment of lower doses of SNP (10(-5) and 10(-7) M). Similarly, inhibition of NO by NOS inhibitor resulted in the dose-dependent inhibition of embryo development and hatching rates, but the concomitant addition of SNP with L-NAME reversed the inhibitory effect by each SNP or L-NAME treatment. Furthermore, low concentration of SNP (10(-7) M) but not high concentration of SNP (10(-3) M) significantly stimulated trophoblast outgrowth, whereas the addition of L-NAME suppressed the spreading of blastocysts in a dose-dependent manner. These results suggest that NO may have crucial roles in oocyte maturation and embryogenesis including the process of implantation. The observed differences in required amount of NO and the sensitivity to cytotoxicity of NO in each developmental stage embryos may also suggest that NO/NOS system is tightly regulated in developmental stage specific manner.
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Affiliation(s)
- K Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical College, Asahikawa, Japan.
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Ponderato N, Grasselli F, Saleri R, Tamanini C. Factors Modulating Apoptosis: an in-vitro Study in Swine Granulosa Cells. Reprod Domest Anim 2000. [DOI: 10.1046/j.1439-0531.2000.00217.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Lee KS, Joo BS, Na YJ, Yoon MS, Choi OH, Kim WW. Relationships between concentrations of tumor necrosis factor-alpha and nitric oxide in follicular fluid and oocyte quality. J Assist Reprod Genet 2000; 17:222-8. [PMID: 10955247 PMCID: PMC3455467 DOI: 10.1023/a:1009495913119] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
PURPOSE Our objective was to explain a relationship between concentrations of tumor necrosis factor-alpha (TNF-alpha) and nitric oxide (NO) in follicular fluid, oocyte quality, and outcomes of in vitro fertilization--embryo transfer (IVF-ET). METHODS The concentrations of TNF-alpha and NO were measured in 115 follicular fluid samples collected from 43 patients undergoing IVF-ET program, due to tubal obstruction, some with endometriosis (8 patients) or hydrosalpinx (5 patients). A correlation of these factors concentrations and the oocyte quality, the oocyte maturity, and infertility-associated diseases was analyzed. RESULTS No correlation was found between concentrations of NO and TNF-alpha in follicular fluid. NO concentrations in follicular fluids were significantly higher in patients with endometriosis (P < 0.001) or hydrosalpinx (P < 0.01) compared to the patients with just tubal obstruction. Follicular NO concentration differences according to oocyte maturity and oocyte quality were not found. In contrast, TNF-alpha concentrations in follicular fluids were significantly higher in poor quality oocytes (P < 0.05) but were not associated with infertility-associated diseases, such as hydrosalphinx or endometriosis,and the oocyte maturity. No significant differences in follicular levels of NO and TNF-alpha as well as IVF-ET parameters of pregnant and nonpregnant groups were revealed. CONCLUSIONS There is no significant correlation between the concentrations of NO and TNF-alpha in follicular fluid. NO levels in follicular fluid are altered in infertility-associated diseases. However, TNF-alpha levels but not NO levels influence oocyte quality. These results suggest that the production of NO and TNF-alpha in follicular fluid may be regulated via different pathways and can be tempered with infertility-associated diseases, thereby influencing oocyte quality locally.
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Affiliation(s)
- K S Lee
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Korea
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Sadraie SH, Saito H, Kaneko T, Saito T, Hiroi M. Effects of aging on ovarian fecundity in terms of the incidence of apoptotic granulosa cells. J Assist Reprod Genet 2000; 17:168-73. [PMID: 10911578 PMCID: PMC3455660 DOI: 10.1023/a:1009422323306] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE The objective was to determine the effects of women's age on the ovarian fecundity as assessed by the incidence of apoptotic granulosa cells. METHODS Twenty-eight normo-ovulatory women underwent ovulation induction for standard IVF. The husbands of these women showed severe male infertility factors. The women were divided into four groups according to their ages. Women underwent follicle aspiration after the administration of human menopausal gonadotropin plus human chorionic gonadotropin. The nuclei of granulosa cells were examined by using fluorescence microscopy, and the incidence of apoptotic granulosa cells was tabulated. RESULTS Granulosa cells in the older women revealed a significant increase in the number of apoptotic cells. The number of total oocytes and the number of mature oocytes obtained significantly decreased with age. However, endometrial thickness and follicular estradiol, progesterone, and free testosterone levels were not significantly different among four different age groups. CONCLUSIONS Age increases apoptotic changes in granulosa cells and consequently decreases the ovarian fecundity.
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Affiliation(s)
- S H Sadraie
- Department of Obstetrics and Gynecology, Yamagata University, School of Medicine, Japan
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Sugino N, Takiguchi S, Kashida S, Takayama H, Yamagata Y, Nakamura Y, Kato H. Suppression of intracellular superoxide dismutase activity by antisense oligonucleotides causes inhibition of progesterone production by rat luteal cells. Biol Reprod 1999; 61:1133-8. [PMID: 10491654 DOI: 10.1095/biolreprod61.4.1133] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Superoxide radicals are known to inhibit progesterone production by luteal cells and have also been reported to cause apoptosis in various cells. The corpus luteum has an antioxidant enzyme to scavenge superoxide radicals: copper-zinc superoxide dismutase (Cu, Zn-SOD). However, it remains unknown how the decrease in intracellular Cu,Zn-SOD activity influences luteal function. This study was therefore undertaken to investigate whether suppression of intracellular Cu,Zn-SOD activity inhibits progesterone production by rat luteal cells and causes apoptosis. To suppress intracellular Cu, Zn-SOD activity, dispersed rat luteal cells were incubated with Cu, Zn-SOD antisense oligonucleotides. The 48-h treatment with antisense oligonucleotides (10 microM) inhibited Cu,Zn-SOD activity by 50% and Cu,Zn-SOD mRNA level by 30%, whereas sense oligonucleotides used as the control had no effect. Progesterone concentration in the medium was significantly decreased by the 48-h treatment with antisense oligonucleotides in the presence of hCG, and this inhibitory effect was completely blocked by the simultaneous addition of N-acetyl-L-cysteine, an antioxidant. Treatment with antisense oligonucleotides caused no significant change in the percentage of apoptotic cells as morphologically evaluated by the nuclear staining with Hoechst dye. In conclusion, the decrease in intracellular Cu, Zn-SOD activities inhibits progesterone production by rat luteal cells, which may be mediated by superoxide radicals, suggesting that intracellular Cu,Zn-SOD plays important roles in the regulation of luteal function.
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Affiliation(s)
- N Sugino
- Department of Obstetrics and Gynecology, Yamaguchi University School of Medicine, Ube 755-8505, Japan
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Cirelli N, Moens A, Lebrun P, Gueuning C, Delogne-Desnoeck J, Vanbellinghen AM, Meuris S. Apoptosis in human term placenta is not increased during labor but can be massively induced in vitro. Biol Reprod 1999; 61:458-63. [PMID: 10411527 DOI: 10.1095/biolreprod61.2.458] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Apoptosis in human placental villi is reported to increase until close to delivery. However, the involvement of the apoptotic process in the initiation of labor, and more particularly in relation to the decrease in placental perfusion during uterine contractions, remains unknown. The purpose of the study was to examine the reactivity of the apoptotic machinery in term placentae obtained before or after the onset of labor and after in vitro incubations. The incidence of apoptotic nuclei (< 1%) as evidenced by the terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) method, and the histological distribution of immunoreactive Bcl-2, Bax, and Bcl-x proteins, were similar in placentae collected after delivery and before the onset of labor and in placental explants maintained overnight at 4 degrees C in a minimal salt-Hepes medium. By contrast, 28% of nuclei contained fragmented DNA when placental explants were incubated overnight at 37 degrees C. This marked increase was associated with a decrease in the intensity of the Bcl-2 immunostaining and an increase in the intensity of Bax and Bcl-x immunostaining. In conclusion, the present study clearly evidences the presence of an active apoptotic machinery in term placental cells that is not involved in normal parturition.
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Affiliation(s)
- N Cirelli
- Research Laboratory on Reproduction, Université Libre de Bruxelles (ULB), B-1070 Bruxelles, Belgium.
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Sengoku K, Tamate K, Yoshida T, Takaoka Y, Miyamoto T, Ishikawa M. Effects of low concentrations of nitric oxide on the zona pellucida binding ability of human spermatozoa. Fertil Steril 1998; 69:522-7. [PMID: 9531890 DOI: 10.1016/s0015-0282(97)00537-2] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To investigate the direct effects of sodium nitroprusside, a nitric oxide donor, on the fertilizing ability of human spermatozoa in vitro. DESIGN Prospective, controlled in vitro study. SETTING IVF Unit, Medical College Hospital. PATIENT(S) Women undergoing conventional IVF. INTERVENTION(S) Human spermatozoa samples were incubated with a nitric oxide donor and a nitric oxide quencher, carboxy-imidazolineoxyl N-oxides. MAIN OUTCOME MEASURE(S) The capacitation and the acrosome reaction rates were determined by chlortetracycline assay. Sperm zona pellucida binding and sperm penetration into oocytes were determined using the hemizona assay and the human aged zona-free oocyte sperm penetration assay. RESULT(S) High concentrations of sodium nitroprusside (10(-3) and 10(-5) M) inhibited sperm motility and viability. In contrast, low concentrations of sodium nitroprusside (10(-7) and 10(-8) M) did not affect motility and resulted in increased capacitation (47 +/- 6% at 10(-7) M, 42 +/- 6% at 10(-8) M, and 24 +/- 4% in controls, respectively, P < 0.01). A twofold increase in the hemizona index occurred compared to the matched control. However, low levels of sodium nitroprusside treatment did not affect the acrosome reaction and human zona-free oocyte sperm penetration rates. CONCLUSION(S) Low concentrations of nitric oxide may have some physiologic role in fertilization through the enhancement of capacitation and zona pellucida binding but not by the induction of the acrosome reaction or the facilitation of penetration into oocytes.
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Affiliation(s)
- K Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical College, Japan
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