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Butts CD, Bloom MS, McGough A, Lenhart N, Wong R, Mok-Lin E, Parsons PJ, Galusha AL, Yucel RM, Feingold BJ, Browne RW, Fujimoto VY. Variability of essential and non-essential trace elements in the follicular fluid of women undergoing in vitro fertilization (IVF). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111733. [PMID: 33385679 PMCID: PMC7845532 DOI: 10.1016/j.ecoenv.2020.111733] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 05/03/2023]
Abstract
Both essential and non-essential elements have been associated with female reproductive function in epidemiologic investigations, including among IVF populations. To date, most investigators have used blood or urine to assess biomarkers of exposure, with few employing ovarian follicular fluid (FF). FF may offer a more direct "snapshot" of the oocyte microenvironment than blood or urine, however previous studies report follicle-to-follicle variability in FF constituents that may contribute to exposure misclassification. Our objectives were to investigate sources of trace element variability, to estimate FF biomarker reliability among women undergoing IVF (n = 34), and to determine the minimum number of follicles required to estimate subject-specific mean concentrations. We measured As, Hg, Cd, Pb, Cu, Mn, Se, and Zn in FF samples using inductively coupled plasma tandem mass spectrometry. Inter-subject (between-women) variability contributed most of the variability in FF element concentrations, with ovarian, follicular, and analytical as smaller sources of variability. The proportion of variability attributable to sources between-follicles differed by age, body mass index (BMI), race, and cigarette smoking for Cu, Se, and Zn, by BMI and cigarette smoking for As, by primary infertility diagnosis for Hg, Cu, Se, and Zn, and by ovarian stimulation protocol for Mn and Se. Four to five individual follicles were sufficient to estimate subject-specific mean Cu, Se, and Zn concentrations, while >14 were necessary for As, Hg, Cd, Pb, and Mn. Overall, our results suggest that FF is a suitable source of biomarkers of As and Hg exposure in ovarian follicles. Although limited in size, our study offers the most comprehensive exploration of biological variation in FF trace elements to date and may provide guidance for future studies of ovarian trace element exposures.
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Affiliation(s)
- Celeste D Butts
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, United States
| | - Michael S Bloom
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, United States; Department of Epidemiology & Biostatistics, University at Albany, State University of New York, Rensselaer, NY 12144, United States; Department of Global and Community Health, George Mason University, Fairfax, VA 22030 United States.
| | - Alexandra McGough
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California at San Francisco, San Francisco, CA 94158, United States
| | - Nikolaus Lenhart
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California at San Francisco, San Francisco, CA 94158, United States
| | - Rebecca Wong
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California at San Francisco, San Francisco, CA 94158, United States
| | - Evelyn Mok-Lin
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California at San Francisco, San Francisco, CA 94158, United States
| | - Patrick J Parsons
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, United States; Laboratory of Inorganic & Nuclear Chemistry, Wadsworth Center, New York State Department of Health, Albany, NY 12201, United States
| | - Aubrey L Galusha
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, United States; Laboratory of Inorganic & Nuclear Chemistry, Wadsworth Center, New York State Department of Health, Albany, NY 12201, United States
| | - Recai M Yucel
- Department of Epidemiology and Biostatistics, Temple University, Philadelphia, PA 19122, United States
| | - Beth J Feingold
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, United States
| | - Richard W Browne
- Department of Biotechnical and Clinical Laboratory Sciences, University at Buffalo, State University of New York, Buffalo, NY 14260, United States
| | - Victor Y Fujimoto
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California at San Francisco, San Francisco, CA 94158, United States
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Campen KA, McNatty KP, Pitman JL. A protective role of cumulus cells after short-term exposure of rat cumulus cell-oocyte complexes to lifestyle or environmental contaminants. Reprod Toxicol 2017; 69:19-33. [PMID: 28087314 DOI: 10.1016/j.reprotox.2017.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/05/2017] [Indexed: 01/07/2023]
Abstract
Ovarian follicular fluid provides a potential reservoir for exogenous compounds that may adversely affect oocyte quality. This study examined the effects of common lifestyle and environmental contaminants, namely bisphenol-A (BPA), caffeine, 3,4-methylenedioxymethamphetamine (MDMA), nicotine and Δ9-tetrahydrocannabinol (THC) on gap junction genes (Gja1, Gja4) and proteins (GJA1), glucose metabolism genes (Gfpt1, Pfkp) and oocyte growth factor genes (Bmp15, Gdf9), as well as gap junction transfer rate, in rat cumulus-oocyte complexes (COCs). In vitro exposure to MDMA and THC accelerated the timing of meiotic resumption and all contaminants altered either gap junction gene expression (BPA, caffeine, MDMA and THC) or transfer rate (BPA and nicotine). In vitro exposure of COCs to MDMA also altered glucose metabolism genes. Overall, oocyte-derived genes were largely unaffected following exposure to any contaminant. In summary, the impact of short-term exposure to lifestyle and environmental contaminants on oocyte function may be diminished due to protective properties of cumulus cells.
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Affiliation(s)
- Kelly A Campen
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Kenneth P McNatty
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Janet L Pitman
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand.
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Kazemi A, Ramezanzadeh F, Esfahani MHN, Saboor-Yaraghi AA, Nejat S, Rahimi-Foroshani A. Impact of environmental tobacco smoke exposure in women on oxidative stress in the antral follicle and assisted reproduction outcomes. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2013; 18:688-94. [PMID: 24379845 PMCID: PMC3872608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Revised: 02/24/2013] [Accepted: 07/08/2013] [Indexed: 10/28/2022]
Abstract
BACKGROUND Cigarette smoke contains many oxidants and may alter the human reproduction by inducing oxidative stress (OS) in both active and passive smokers. This study was designed to evaluate the effect of environmental tobacco smoke (ETS) exposure on oxidative stress in the follicular fluid and the assisted reproduction outcomes. MATERIALS AND METHODS An observational prospective study was carried out on 236 infertile women, who underwent assisted reproduction cycles. The ETS exposure was assessed using self-reported ETS exposure and the cotinine level in follicular fluid. To evaluate the OS in follicular fluid (FF) malon-di-aldehyde (MDA) and total antioxidant capacity (TAC) were measured. The number of retrieved oocytes, rate of metaphase II stage oocytes, fertilization rate, good cleavage rate, and no-fragmented embryo rate were considered as the assisted reproduction outcomes. The results were adjusted for age, body mass index, duration, and etiology of infertility; P-values less than 0.05 were considered significant. RESULTS The MDA and TAC levels in FF were not related to the self-report number of the weekly ETS exposure and cotinine levels in FF. Also, the number of retrieved oocytes, MII stage oocytes, fertilization rate, good cleavage rate, and no-fragmented embryo rate were not related to the cotinine level and weekly ETS exposure. However, in women whose cotinine levels in FF were lower and equal/above 3.5 ng/ml, the number of retrieved oocytes was higher (12.63 ± .71 vs. 9.28 ± 1.11, P = 0.01). The relationship between the MDA level and cleavage rate (Beta = -18.5, confidence interval-34.9 and-2.1, P < 0.05) was negatively significant and the relationship between the MII stage rate with TAC (Beta = 0.02, confidence interval 0.01 and 0.04, P < 0.05) was positively significant. CONCLUSION The ETS exposure may alter the assisted reproduction success by influencing the number of available oocytes. Although, the OS in a follicular environment affect the ability of oocytes to reach the specific cleavage stages at appropriate time intervals, it does not mediate poor-assisted reproduction outcomes due to ETS exposure.
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Affiliation(s)
- Ashraf Kazemi
- Nursing and Midwifery Care Research Center, Faculty of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Ramezanzadeh
- Vali-e-Asr Reproductive Health Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hosein Nasr Esfahani
- Reproductive Biomedicine Center, Royan Institute for Animal Biotechnology, ACECR, Department of Reproduction and Development, Isfahan, Iran
| | - Ali Akbar Saboor-Yaraghi
- Department of Nutrition and Biochemistry, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Saharnaz Nejat
- Epidemiology and Biostatistics Department, School of Public Health, Knowledge utilization Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Rahimi-Foroshani
- Epidemiology and Biostatistics Department, School of Public Health, Knowledge utilization Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Bloom MS, Kim K, Kruger PC, Parsons PJ, Arnason JG, Steuerwald AJ, Fujimoto VY. Associations between toxic metals in follicular fluid and in vitro fertilization (IVF) outcomes. J Assist Reprod Genet 2012; 29:1369-79. [PMID: 23229520 DOI: 10.1007/s10815-012-9882-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 10/29/2012] [Indexed: 11/25/2022] Open
Abstract
PURPOSE We previously reported associations between trace concentrations of Hg, Cd and Pb in blood and urine and reproductive outcomes for women undergoing in-vitro fertilization (IVF). Here we assess measurements in single follicular fluid (FF) specimens from 46 women as a presumably more relevant marker of dose for reproductive toxicity. METHODS FF specimens were analyzed for Hg, Cd and Pb using sector field-inductively coupled plasma-mass spectrometry (SF-ICP-MS). Variability sources were assessed by nested ANOVA. Multivariable regression was used to evaluate associations for square root transformed metals with IVF outcomes, adjusting for confounders. RESULTS An inverse association is detected for FF Pb and fertilization (relative risk (RR) = 0.68, P = 0.026), although positive for Cd (RR = 9.05, P = 0.025). While no other statistically significant associations are detected, odds ratios (OR) are increased for embryo cleavage with Hg (OR = 3.83, P = 0.264) and Cd (OR = 3.18, P = 0.644), and for embryo fragmentation with Cd (OR = 4.08, P = 0.586) and Pb (OR = 2.22, P = 0.220). Positive estimates are observed for Cd with biochemical (RR = 19.02, P = 0.286) and clinical pregnancies (RR = 38.80, P = 0.212), yet with very low precision. CONCLUSIONS We have identified associations between trace amounts of Pb and Cd in FF from a single follicle, and oocyte fertilization. Yet, the likelihood of biological variation in trace element concentrations within and between follicles, coupled with levels that are near the limits of detection suggest that future work should examine multiple follicles using a 'one follicle-one oocyte/embryo' approach. A larger study is merited to assess more definitively the role that these environmental factors could play with respect to egg quality in IVF programs.
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Affiliation(s)
- Michael S Bloom
- Department of Environmental Health Sciences, University at Albany, State University of New York, School of Public Health Rm. #157, One University Place, Rensselaer, NY 12144, USA.
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Benedict MD, Missmer SA, Vitonis AF, Cramer DW, Meeker JD. Cotinine concentrations in follicular fluid as a measure of secondhand tobacco smoke exposure in women undergoing in vitro fertilization: inter-matrix comparisons with urine and temporal variability. CHEMOSPHERE 2011; 84:110-6. [PMID: 21397293 PMCID: PMC3100396 DOI: 10.1016/j.chemosphere.2011.02.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 12/16/2010] [Accepted: 02/15/2011] [Indexed: 05/30/2023]
Abstract
We examined the relationship between cotinine measures in follicular fluid (FF) and urine to inform our exposure assessment strategy for an ongoing epidemiological study of secondhand tobacco smoke (STS) exposure and early pregnancy loss. Among subjects undergoing in vitro fertilization (IVF), we compared cotinine levels in paired urine and FF samples from the same women and examined FF cotinine levels over time. We found a weak rank-order relationship (Spearman r<0.2) and poor agreement for classifying nonsmoking individuals as exposed to STS (sensitivity=0.29-0.71; specificity=0.35-0.72) between cotinine concentrations in FF and urine. We observed fair reliability (ICC=0.42-0.52) in FF cotinine concentrations from women undergoing multiple IVF cycles. If available, FF cotinine concentrations may be desired as a biomarker of low-level tobacco smoke exposure over urinary cotinine in studies of early reproduction. Collection of multiple FF samples for cotinine analysis may be needed to accurately represent long-term STS exposure.
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Affiliation(s)
- Merle D Benedict
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI 48109, USA
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Varghese AC, Ly KD, Corbin C, Mendiola J, Agarwal A. Oocyte developmental competence and embryo development: impact of lifestyle and environmental risk factors. Reprod Biomed Online 2010; 22:410-20. [PMID: 21388885 DOI: 10.1016/j.rbmo.2010.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Revised: 10/19/2010] [Accepted: 11/10/2010] [Indexed: 11/24/2022]
Abstract
Oocyte development is the end result of a sophisticated biological process that is hormonally regulated and produced by highly specialized cellular lines that differentiate in early embryo/fetal development. Embryo development is initially regulated by maternal transcripts until replaced by embryonic genomic expression. Then, an assortment of hormones and local environmental factors in various concentrations along the reproductive tract (e.g. fallopian tube, endometrial lining) provide the protection, nutrients and means of communication for the embryo to implant and develop. Both oocytes and embryos are susceptible to environmental, occupational and lifestyle exposures that can exert direct toxic effects and disrupt hormones. While some exposures may produce reversible changes, others, especially those damaging germinal cells in utero or during prepuberty, may result in permanent sequelae that continue in future generations. This article reviews the main factors that affect female fertility and their possible influence on human reproduction. Some lifestyles, xeno-oestrogens and heavy metals are already known to compromise female reproductive function. Nonetheless, many questions remain and little is known about the effect of many other factors on female fertility.
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Affiliation(s)
- Alex C Varghese
- Fertility Clinic and IVF Department, AMRI Medical Centre, Kolkata, India
| | - Kim D Ly
- Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Obstetrics and Gynecology and Women's Health Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Cresandra Corbin
- Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Obstetrics and Gynecology and Women's Health Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Jaime Mendiola
- Public Health and Epidemiology Research Group, School of Medicine, University of Murcia, Murcia, Spain
| | - Ashok Agarwal
- Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Obstetrics and Gynecology and Women's Health Institute, Cleveland Clinic, Cleveland, OH, USA
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7
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Kumar S, Mishra VV. Review: Toxicants in reproductive fluid and in vitro fertilization (IVF) outcome. Toxicol Ind Health 2010; 26:505-11. [PMID: 20529961 DOI: 10.1177/0748233710373081] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Some of the physical, chemical, dietary, occupational and environmental factors are having adverse effect on human reproduction. Increasing trend in reproductive disorders in recent years at least in part might be associated with these factors. The data available suggests less success rate of in vitro fertilization (IVF) outcome of parents exposed to some of the reproductive toxic chemicals as compared to parents who were not exposed to such chemicals. However, data are very meager and require more studies as some debatable data also exists. But existing positive findings encourage in advising that sub-fertile subjects, who are planning to go for the IVF, should reduce toxic exposure well in advance by adopting positive life style and work environment. Further, clinician ought to be aware of occupational and environmental exposure history of the participating couple.
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Affiliation(s)
- Sunil Kumar
- Division of Reproductive and Cytotoxicology, National Institute of Occupational Health (ICMR), Ahmedabad 380016, India.
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Foster WG, Neal MS, Han MS, Dominguez MM. Environmental contaminants and human infertility: hypothesis or cause for concern? JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2008; 11:162-176. [PMID: 18368551 DOI: 10.1080/10937400701873274] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Throughout the 1980s and 1990s the crude human birth rate (live births per 1000 population) declined, indicating reduced fertility and suggesting a potential decline in fecundity (the potential to conceive). Detection of environmental contaminants in human tissues, together with reports of a global decline in semen quality, further fueled speculation that human infertility rates are increasing and environmental toxicants are potentially important causal agents associated with this change. However, there is little compelling evidence to suggest that infertility rates amongst the general population have changed over time. Moreover, recent studies suggest a rise in the fertility rates. While several studies documented increased time to pregnancy (TTP) in exposed study populations, other investigators were not able to replicate these findings. Nevertheless, studies involving occupational exposure together with results from animal experiments lend support to the conclusion that environmental contaminants potentially adversely affect fertility. Consequently, the impact of exposure to environmental contaminants on human fertility remains controversial. To test the hypothesis that environmental contaminant exposure was associated with enhanced risk of infertility, data concerning trends in fertility and infertility rates were examined to assess the impact of exposure of developing gametes to environmental contaminants. The relationship between exposure and reproductive outcomes was then examined to illustrate the range of adverse effects for reproductive toxicants with data sets of divergent depth and reliability. Data showed that only a weak association between exposure to environmental contaminants and adverse effects on human fertility exists. However, it is postulated that evidence of chemical exposure and potential health consequences of these exposures highlight the need for further research in this area.
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Affiliation(s)
- Warren G Foster
- Centre for Reproductive Care and Reproductive Biology Division, Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada.
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Neal MS, Zhu J, Holloway AC, Foster WG. Follicle growth is inhibited by benzo-[a]-pyrene, at concentrations representative of human exposure, in an isolated rat follicle culture assay. Hum Reprod 2007; 22:961-7. [PMID: 17218370 DOI: 10.1093/humrep/del487] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The adverse effects of cigarette smoking on human fertility have been well documented. However, the mechanism(s) underlying the detrimental effects of cigarette smoking are unknown. Using a novel isolated rat follicle culture assay, we tested the hypothesis that benzo-[a]-pyrene (B[a]P), a constituent of cigarette smoke, can inhibit follicle growth. METHODS B[a]P levels were quantified in the serum and follicular fluid (FF) of women undergoing in vitro fertilization (IVF) treatment exposed to mainstream smoke (n = 19) and non-smokers (n = 10) by gas chromatography mass spectrometry. Isolated rat follicles were cultured with increasing concentrations of B[a]P (1.5-300 ng ml(-1)) and follicle diameter was measured daily. RESULTS Mean ( +/- Standard error of the mean) B[a]P) was quantified in the serum (0.40 +/- 0.13 ng ml(-1)) and FF (1.32 +/- 0.68 ng ml(-1)) of women who smoke. IVF stimulation and outcome measures were similar between female smokers and non-smokers with the exception of implantation rate and pregnancy rate, which were both significantly lower (P < 0.05) in the MS group. B[a]P treatment significantly reduced rat follicle diameter and attenuated FSH stimulated growth in a dose-dependent manner, beginning at 1.5 ng ml(-1). CONCLUSIONS Our data suggest that B[a]P, at levels representative of those measured in human FF, may adversely affect follicle development and be an ovarian toxicant.
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Affiliation(s)
- Michael S Neal
- Centre for Reproductive Care, Hamilton Health Sciences, Hamilton, Ontario, Canada.
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10
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Triopon G, Tailland ML, Faillie JL, Bolzinger E, Mercier G, Ripart S, Boyer JC, Fabbro-Peray P, Poirey S, Archambault A, Marès P. Fécondation in vitro et tabac: intérêt de la cotininurie et de l'analyseur de monoxyde de carbone expiré. ACTA ACUST UNITED AC 2006; 34:1043-50. [PMID: 17070086 DOI: 10.1016/j.gyobfe.2006.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2006] [Accepted: 09/13/2006] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To study the correlation between expired air carbon (EACO) and urinary cotinine, and to determine the impact of tobacco smoking on in vitro fertilization (IVF) results. PATIENTS AND METHODS We studied prospectively 221 patients in our ART center from October 2002 to October 2004: 51 active smokers, 85 passive smokers, and 85 non-smokers. Patients were classified into active, passive smokers, or non-smokers, based on a questionnaire. We measured urinary cotinine and EACO on the embryo transfer day and we recorded the IVF parameters. RESULTS Two hundred and twenty-one patients were included. We observed a 17.2% reduction of estradiolemy (P=0.05), a 1.5% reduction of pregnancies (NS), a 7.8% reduction of infants born alive (NS), a 28.5% reduction of twin pregnancies (P=0.06), as well as a 10% increase of miscarriages (NS) in the active smokers in comparison with non-smokers (the same trends were observed between active and passive smokers). EACO and urinary cotinine were well correlated. There was a negative correlation between estradiolemy and urinary cotinine (R=-0.15, P=0.02). DISCUSSION AND CONCLUSION Tobacco smoking intensity may be dilatory on IVF results. There is a high correlation between EACO and urinary cotinine. Other larger studies would probably obtain results more statistically significant.
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Affiliation(s)
- G Triopon
- Service de gynécologie-obstétrique, département de médecine de la reproduction, CHU Carémeau, place Robert-Debré, 30900 Nîmes cedex, France.
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Vidal JD, VandeVoort CA, Marcus CB, Lazarewicz NR, Conley AJ. In vitro exposure to environmental tobacco smoke induces CYP1B1 expression in human luteinized granulosa cells. Reprod Toxicol 2006; 22:731-7. [PMID: 16996243 DOI: 10.1016/j.reprotox.2006.06.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Revised: 04/18/2006] [Accepted: 06/08/2006] [Indexed: 11/12/2022]
Abstract
Women smokers and women exposed to environmental tobacco smoke (ETS) have reduced ovarian function as evidenced by an earlier menopause, reduced follicular numbers, decreased levels of circulating estradiol, and decreased conception rates; however, the mechanism of action of altered ovarian function by ETS is poorly understood. The direct effects of ETS were evaluated using human luteinized granulosa cells (HLGCs) exposed to ETS in primary cell culture. Exposure to ETS caused a decrease in both estradiol and progesterone production. There was a concentration dependent increase in CYP1B1 gene and protein expression without a change in catechol-O-methyltransferase (COMT) expression. This is the first report of CYP1B1 induction secondary to ETS exposure in cells from the human ovary. CYP1B1 metabolizes both endogenous estrogens and polyaromatic hydrocarbons in ETS to a variety of reactive species and may contribute to the complex effects of ETS on ovarian function.
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Affiliation(s)
- Justin D Vidal
- Population Health and Reproduction, University of California at Davis, Davis, CA 95616, USA.
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Abstract
Passive smoking is defined as an involuntary exposure to a combined but diluted cigarette sidestream smoke (SS, gas and particle phases that are evolved from the smoldering end of a cigarette while the smoker is not puffing) and the exhaled smoke from smokers. SS contains numerous cytotoxic substances such as polycyclic aromatic hydrocarbons (PAHs), aromatic amines, nitrosamines, heavy metals, poisonous gases, pesticide residues, and radioactive elements in quantities much higher than those found from the cigarette mainstream smoke (MS) which is puffed by smokers. Passive smoking is found to be the cause of death from cancers and cardiac disease. Furthermore, it damagingly involves reproductive organs, the nervous system, genetic materials, and is particularly hazardous to mother and child during pregnancy and to those with a history of asthma, chronic infections, induced or earned immune deficiency, or predisposed susceptibility.
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Affiliation(s)
- E Nelson
- Institute of Hygiene and Occupational Medicine, University Medical Center, Essen, Germany
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