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Shi X, Ren MQ, Wang LT, Chan CPS, Chan DYL, Quan S, Li TC. Blood metal/metalloid concentration of male subjects undergoing IVF/ICSI treatment outcomes: A prospective cohort study. J Trace Elem Med Biol 2023; 78:127196. [PMID: 37209528 DOI: 10.1016/j.jtemb.2023.127196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/26/2023] [Accepted: 05/05/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Previous epidemiology studies reported that heavy metal/metalloid exposure is associated with the impairment of semen quality. However, it is still not clear whether the in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) treatment outcome will be affected after the heavy metal/metalloid exposure of the male partners. METHODS A prospective cohort study with a 2-year followed-up was conducted in a tertiary IVF center. A total of 111 couples undergoing IVF/ICSI treatment were initially recruited from November 2015 to November 2016. Male blood concentrations of heavy metal/metalloid including Ca, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Mo, Cd, Hg, and Pb were measured by inductively coupled plasma mass spectrometry, and the lab and pregnancy outcome data were followed up. The associations between male blood heavy metal/metalloid concentration and the clinical outcomes were analyzed by Poisson regression analysis. RESULTS Our results showed that none of the heavy metal/metalloid of male partners we investigated are significantly associated with the oocyte fertilization and good embryo (P ≥ 0.05); however, antral follicle count (AFC) was a protective factor for the oocyte fertilization (RR: 1.07, 95 % CI: 1.04-1.10). The blood Fe concentration of the male partner was positively associated (P < 0.05) with pregnancy in the first fresh cycle (RR:170.93, 95 % CI: 4.13-7082.04), cumulative pregnancy (RR: 23.61, 95 % CI: 3.25-171.64) and cumulative live birth (RR: 36.42, 95 % CI: 1.21-1092.54). In the first frozen embryo cycles, pregnancy was significantly associated (P < 0.05) with the blood Mn (RR: 0.01, 95 % CI:0.00-0.11) and Se concentration (RR: 0.01, 95 % CI:8.25 E-5-0.47) and female age (RR: 0.86, 95 % CI:0.75-0.99); live birth was significantly associated (P < 0.05) with the blood Mn concentration (RR: 0.00, 95 % CI: 1.14E-7-0.51). CONCLUSIONS Our results suggested that the higher male blood Fe concentration was positively associated with pregnancy in the fresh embryo transfer cycle, cumulative pregnancy, and cumulative live birth, whereas the higher male blood Mn and Se concentration were associated with lower chance of pregnancy and live birth in the frozen embryo transfer cycle. However, the underline mechanism of this finding still needs further investigation.
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Affiliation(s)
- Xiao Shi
- Center for Reproductive Medicine, Department of Obstetrics and Gynaecology, NanFang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Mei Qi Ren
- Center for Reproductive Medicine, Department of Obstetrics and Gynaecology, NanFang Hospital, Southern Medical University, Guangzhou, Guangdong, China; The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Lian Tong Wang
- Center for Reproductive Medicine, Department of Obstetrics and Gynaecology, NanFang Hospital, Southern Medical University, Guangzhou, Guangdong, China; The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Carol Pui Shan Chan
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - David Yiu Leung Chan
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Song Quan
- Center for Reproductive Medicine, Department of Obstetrics and Gynaecology, NanFang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Tin-Chiu Li
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.
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Seong JB, Bae YC, Lee HS, Huh JW, Lee SR, Lee HJ, Lee DS. Increasing ERK phosphorylation by inhibition of p38 activity protects against cadmium-induced apoptotic cell death through ERK/Drp1/p38 signaling axis in spermatocyte-derived GC-2spd cells. Toxicol Appl Pharmacol 2019; 384:114797. [PMID: 31676320 DOI: 10.1016/j.taap.2019.114797] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 10/24/2019] [Accepted: 10/26/2019] [Indexed: 01/30/2023]
Abstract
Many studies report that cadmium chloride (CdCl2)-induces oxidative stress is associated with male reproductive damage in the testes. CdCl2 also induces mitochondrial fission by increasing dynamin-related protein 1 (Drp1) expression as well as the mitochondria-dependent apoptosis pathway by extracellular signal-regulated kinase (ERK) activation. However, it remains unclear whether mechanisms linked to the mitochondrial damage signal via CdCl2-induced mitogen-activated protein kinases (MAPK) cause damage to spermatocytes. In this study, increased intracellular and mitochondrial reactive oxygen species (ROS) levels, mitochondrial membrane potential (∆Ψm) depolarization, and mitochondrial fragmentation and swelling were observed at 5 μM of CdCl2 exposure, resulting in increased apoptotic cell death. Moreover, CdCl2-induced cell death is closely associated with the ERK/Drp1/p38 signaling axis. Interestingly, SB203580, a p38 inhibitor, effectively prevented CdCl2-induced apoptotic cell death by reducing ∆Ψm depolarization and intracellular and mitochondrial ROS levels. Knockdown of Drp1 expression diminished CdCl2-induced mitochondrial deformation and ROS generation and protected GC-2spd cells from apoptotic cell death. In addition, electron microscopy showed that p38 inhibition reduced CdCl2-induced mitochondrial interior damage more effectively than N-acetyl-L-cysteine (NAC), an ROS scavenger; ERK inhibition; or Drp1 knockdown. Therefore, these results demonstrate that inhibition of p38 activity prevents CdCl2-induced apoptotic GC-2spd cell death by reducing depolarization of mitochondrial membrane potential and mitochondrial ROS levels via ERK phosphorylation in a signal pathway different from the CdCl2-induced ERK/Drp1/p38 axis and suggest a therapeutic strategy for CdCl2-induced male infertility.
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Affiliation(s)
- Jung Bae Seong
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences & Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Yong Chul Bae
- Department of Anatomy and Neurobiology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Hyun-Shik Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences & Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Jae-Won Huh
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
| | - Sang-Rae Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
| | - Hong Jun Lee
- College of Medicine, Chungbuk National University, Chungbuk, Republic of Korea; Department of Radiology, Chungbuk National University Hospital, Chungbuk, Republic of Korea; Research Institute, e-biogen Inc., Seoul, Republic of Korea
| | - Dong-Seok Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences & Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea.
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Caldeira DF, Paulini F, Silva RC, Azevedo RBD, Lucci CM. In vitro exposure of bull sperm cells to DMSA-coated maghemite nanoparticles does not affect cell functionality or structure. Int J Hyperthermia 2017; 34:415-422. [PMID: 28605996 DOI: 10.1080/02656736.2017.1341646] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Magnetic nanoparticles can be used in different areas of biology. It is therefore important to know the effects of such nanomaterials on germline cells as they may traverse the blood-testis barrier. This work aimed to evaluate the response of bull sperm after exposure to a magnetic fluid containing DMSA-coated maghemite nanoparticles (MNP-DMSA) in order to determine nanotoxicity. Bull sperm was incubated with MNP-DMSA at final concentrations of 0.06, 0.03 or 0.015 mg Fe/mL. Sperm kinetics, plasma membrane integrity and acrosome reaction were evaluated over a 4 h incubation period. The sperm cells were also evaluated by transmission electron microscopy. Exposure of bull sperm to MNP-DMSA did not affect sperm kinetics or integrity. Neither ultrastructural damage of sperm cells nor uptake of nanoparticles by the spermatozoa was observed. In conclusion, MNP-DMSA does not affect sperm function or structure under the conditions tested.
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Affiliation(s)
| | - Fernanda Paulini
- b Department of Genetics and Morphology/Department of Physiological Sciences , Institute of Biological Sciences, University of Brasilia , Brasilia , Brazil
| | - Renata Carvalho Silva
- b Department of Genetics and Morphology/Department of Physiological Sciences , Institute of Biological Sciences, University of Brasilia , Brasilia , Brazil
| | - Ricardo Bentes de Azevedo
- c Department of Genetics and Morphology , Institute of Biological Sciences, University of Brasilia , Brasilia , Brazil
| | - Carolina Madeira Lucci
- d Department of Physiological Sciences , Institute of Biological Sciences, University of Brasilia , Brasilia , Brazil
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Rzymski P, Niedzielski P, Poniedziałek B, Rzymski P, Pacyńska J, Kozak L, Dąbrowski P. Free-ranging domestic cats are characterized by increased metal content in reproductive tissues. Reprod Toxicol 2015; 58:54-60. [DOI: 10.1016/j.reprotox.2015.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 06/24/2015] [Accepted: 08/25/2015] [Indexed: 12/21/2022]
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Interdonato M, Pizzino G, Bitto A, Galfo F, Irrera N, Mecchio A, Pallio G, Ramistella V, De Luca F, Santamaria A, Minutoli L, Marini H, Squadrito F, Altavilla D. Cadmium delays puberty onset and testis growth in adolescents. Clin Endocrinol (Oxf) 2015; 83:357-62. [PMID: 25521350 DOI: 10.1111/cen.12704] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 11/19/2014] [Accepted: 12/15/2014] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Cadmium (Cd) has been shown to impair pubertal development in experimental animals. However, no data are available for male adolescents with increased urinary cadmium levels. DESIGN The aim of this cross-sectional study was to evaluate pubertal onset and pituitary-gonadal axis hormones in male adolescents with increased urinary levels of Cd. SUBJECTS We studied 111 males, aged 12-14 years living in the Milazzo-Valle del Mela area. A control age-matched population (n = 60) living 28-45 km far from the industrial site was also enrolled. MEASUREMENTS Pubertal stages were assessed by clinical examination according to Tanner's score. Mean testicular volume was also investigated by ultrasound examination. Urinary Cd concentration and blood levels of FSH, LH, testosterone and inhibin B were also investigated. RESULTS Cd levels were significantly higher in adolescents living in the Milazzo-Valle del Mela area, compared to both age-matched subjects living far from the industrial plants and the reference values. Our population showed also a delayed onset of puberty, a smaller testicular volume and lower testosterone levels. An inverse correlation was found between urinary Cd and testicular volume (r = -0·25; P = 0·0008), testosterone levels (Spearman's r = -0·0·37; two-tailed P < 0·0001) and LH levels (Spearman's r = 0·048; P < 0·05). Testosterone levels were positively correlated with testicular volume (Spearman's r = 0·48; P < 0·0001). CONCLUSIONS This study, for the first time, suggests that increased Cd burden is associated with delayed onset of puberty in male adolescents and impaired testicular growth.
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Affiliation(s)
- Monica Interdonato
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Gabriele Pizzino
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Alessandra Bitto
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Federica Galfo
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Anna Mecchio
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Giovanni Pallio
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Vincenzo Ramistella
- Department of Paediatric, Gynaecological, Microbiological and Biomedical Sciences, University of Messina, Messina, Italy
| | - Filippo De Luca
- Department of Paediatric, Gynaecological, Microbiological and Biomedical Sciences, University of Messina, Messina, Italy
| | - Angelo Santamaria
- Department of Paediatric, Gynaecological, Microbiological and Biomedical Sciences, University of Messina, Messina, Italy
| | - Letteria Minutoli
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Herbert Marini
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Domenica Altavilla
- Department of Paediatric, Gynaecological, Microbiological and Biomedical Sciences, University of Messina, Messina, Italy
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Zeng Q, Feng W, Zhou B, Wang YX, He XS, Yang P, You L, Yue J, Li YF, Lu WQ. Urinary metal concentrations in relation to semen quality: a cross-sectional study in China. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:5052-5059. [PMID: 25827020 DOI: 10.1021/es5053478] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Exposure to metals, including essential and nonessential elements, is widespread and may be associated with altered semen quality. This study aimed to examine the association between urinary metal concentrations and semen quality in a Chinese population. We measured semen quality parameters (sperm concentration, count, motility, normal morphology, and abnormal head) and 13 metals [arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), lead (Pb), manganese (Mn), molybdenum (Mo), mercury (Hg), nickel (Ni), selenium (Se), and zinc (Zn)] in the urine of 394 men from an infertility clinic. Multivariable logistic and linear regressions were used to assess the relationship between the creatinine-adjusted urinary metal concentrations and semen quality parameters. We found a significant trend for decreased odds ratios (ORs) for below-reference sperm count with increasing Se quartiles (p for trend = 0.04) and a significant trend for increased sperm percent abnormal head with increasing Ni quartiles (p for trend = 0.03). These associations persisted, even when considering multiple metals. Our results suggest that Ni exposure may be associated with deteriorated sperm morphology and that Se exposure may be associated with better semen quality. However, our findings warrant further studies in a larger and general population.
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Affiliation(s)
- Qiang Zeng
- †Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
- ‡Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Wei Feng
- †Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
- ‡Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Bin Zhou
- §College of Public Health, University of South China, Hengyang, Hunan 421001, PR China
| | - Yi-Xin Wang
- †Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
- ‡Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Xiao-Sheng He
- †Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
- ‡Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Pan Yang
- †Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
- ‡Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Ling You
- †Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
- ‡Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Jing Yue
- ∥Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Yu-Feng Li
- ∥Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
| | - Wen-Qing Lu
- †Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
- ‡Key Laboratory of Environment and Health, Ministry of Education and Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China
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Pant N, Pant AB, Chaturvedi PK, Shukla M, Mathur N, Gupta YK, Saxena DK. Semen quality of environmentally exposed human population: the toxicological consequence. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:8274-8281. [PMID: 23690079 DOI: 10.1007/s11356-013-1813-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 05/06/2013] [Indexed: 06/02/2023]
Abstract
Human data on the relationship of semen quality with pesticide and metals are mostly inconsistent. The purpose of the study is to confirm the toxicity of organochlorine pesticide β- and γ-hexachlorocyclohexane (HCH), DDE and DDD, and metals lead or cadmium on sperm motility in epidemiological study among fertile and infertile men and to determine whether in vivo and in vitro results are in the same direction. Semen analysis and estimation of the toxicants were done in 60 fertile and 150 infertile men. In the in vitro studies, sperm were exposed to the highest levels of these toxicants found in vivo, as well as five and ten times higher, and to the mixture of all compounds. The study assesses sperm viability and motility for a period ranging between 30 min and 96 h. Epidemiological data showed an inverse correlation of toxicant with sperm motility. In vitro study showed that γ-HCH and lead after 12 h, cadmium after 8 h, and coexposure to toxicants after 6 h of exposure caused significant concentration- and duration-dependent decline in sperm motility. Data of in vitro study were concurrent with epidemiological finding that might be useful in establishing the possible association between exposure and effect of these selected pollutants on sperm motility.
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Affiliation(s)
- Niraj Pant
- Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi, 110029, India,
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Castellanos P, Maroto-Morales A, García-Álvarez O, Garde JJ, Mateo R. Identification of optimal concentrations and incubation times for the study of in vitro effects of Pb in ram spermatozoa. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2013; 91:197-201. [PMID: 23754694 DOI: 10.1007/s00128-013-1032-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 06/01/2013] [Indexed: 06/02/2023]
Abstract
In vitro effects of lead (Pb) on ram (Ovis aries) spermatozoa were studied to establish a threshold level that affects sperm function. Spermatozoa were incubated between 15 and 180 min with Pb concentrations ranging from 0 to 5,000 ng/mL. Sperm motility, acrosome integrity, membrane functionality and sperm viability were all negatively affected by Pb and incubation time. Acrosome integrity was linearly affected by Pb levels at an incubation time of 30 min, and 50 ng/mL was the lowest Pb level producing such effect. These experimental conditions can be appropriate for in vitro studies of the mechanisms of action of Pb on spermatozoa.
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Affiliation(s)
- Pilar Castellanos
- Wildlife Toxicology Group, National Wildlife Research Institute-IREC UCLM-CSIC-JCCM, Ronda de Toledo s/n 13071, Ciudad Real, Spain
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Knazicka Z, Tvrda E, Bardos L, Lukac N. Dose- and time-dependent effect of copper ions on the viability of bull spermatozoa in different media. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2012; 47:1294-1300. [PMID: 22540654 DOI: 10.1080/10934529.2012.672135] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The purpose of this in vitro study was to determine the effect of copper (Cu) on the motility and viability of spermatozoa in the presence of different culture media. Specifically, we examined the dose- and time-dependent effect of copper ions (Cu(2+)) on the motility and viability of spermatozoa during different time periods (Time 0 h, 1 h, 24 h). The percentage of motile spermatozoa and progressive motile spermatozoa was determined after exposure to concentrations of 3.9; 7.8; 15.6; 31.2; 62.5; 125; 250; 500; 1000 μM/L of Cu(2+) using the Sperm Vision(TM) CASA (Computer Assisted Semen Analyzer) system. The cell viability was measured by the MTT (metabolic activity) assay. The initial spermatozoa motility in the presence of Cu(2+) in physiological saline solution (PS) showed slight increased values at doses <31.20 μM/L of Cu(2+) compared to the control group. The long-term cultivation (Time 24 h) reduced the average motility values in all experimental groups (P < 0.001) in comparison to the control group. Identical spermatozoa motility was detected for the percentage of progressive motile spermatozoa during all time periods. The culture medium containing 20 % bovine serum albumin (BSA), triladyl and 5 % glucose increased the overall percentage of spermatozoa motility after 1 h of cultivation. A concurrently maintained motility of spermatozoa at doses <62.50 μM/L of Cu(2+) during the long-term in vitro cultivation confirms the protective effect of albumin. The cell viability was decreased significantly (P < 0.001) in all experimental groups with copper administration. The obtained data point out that Cu(2+) at high doses is a toxic element on the spermatozoa motility, which subsequently disrupts the viability of cells. However, using a suitable culture medium containing an energy component- and protein-rich substrate, the spermatozoa motility could increase.
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Affiliation(s)
- Zuzana Knazicka
- Department of Animal Physiology, Slovak University of Agriculture, Nitra, Slovak Republic.
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Selvaraju S, Nandi S, Gupta PSP, Ravindra JP. Effects of Heavy Metals and Pesticides on Buffalo (Bubalus bubalis) Spermatozoa Functions In Vitro. Reprod Domest Anim 2011; 46:807-13. [DOI: 10.1111/j.1439-0531.2010.01745.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Roychoudhury S, Massanyi P, Bulla J, Choudhury MD, Straka L, Lukac N, Formicki G, Dankova M, Bardos L. In vitro copper toxicity on rabbit spermatozoa motility, morphology and cell membrane integrity. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2010; 45:1482-1491. [PMID: 20700848 DOI: 10.1080/10934529.2010.506092] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this in vitro study the effects of copper sulphate on the motility, morphology and structural integrity of rabbit spermatozoa were investigated. The spermatozoa motility was evaluated by CASA method and Annexin analysis was used for detection of structural changes. For analysis of morphology samples of rabbit semen were fixed with Hancock's solution and stained with Giemsa, and for each sample at least 500 spermatozoa were evaluated. The concentration of copper in the medium varied from 3.57 to 4.85 microg CuSO4/mL. At Time 0 the highest motility was detected in the control group (57.78 +/- 3.90%). Motility in groups with copper administration was lower in comparison to control. Significant differences were detected in groups with 3.70-4.85 microg CuSO4/mL (P<0.05) at Time 0. After 1 h of incubation with copper sulphate the motility significantly decreased almost in all experimental groups. However, at Time 2 h significant increase of total motility was observed in groups with lower concentrations of copper (3.57 and 3.63 microg CuSO4/mL). After 24 and 48 h of incubation almost all the spermatozoa were dead recording no motility at all concentrations. The concentration- dependent decrease of spermatozoa motility up to 50% of control was detected for the group receiving highest copper administration (4.85 microg CuSO4/mL) at Times 1 and 2 h. Progressive motility had an identical trend to that of motility in all experimental groups, at all culture times and for all concentrations. Evaluation of distance and velocity parameters indicated that a sort of stress tolerance developed in lower concentrations (3.57 and 3.63 microg CuSO4/mL). At lower concentrations, an increase was noted for distance parameter DCL and velocity parameter VCL, indirectly confirming the significant motility and progressive motility increase. Other motility parameters (straightness index, linearity index, wobble and amplitude of lateral head displacement) revealed decrease in the group with the highest copper concentration (4.85 microg CuSO4/mL) in comparison to the control group after 2 h of incubation, only. No significant alteration was noted for these parameters in comparison to control at Times 0 and 1 h. The total percentage of morphologically abnormal spermatozoa was significantly higher (P<0.05) in the group with the highest copper concentration (46.20+/-5.54%) in comparison to control (30.60+/-2.91). Predominant morphological abnormalities were acrosomal changes, knob-twisted flagellum and small heads. Detection of spermatozoa with disordered membrane was carried out for groups with higher copper concentrations and control, using Annexin analysis. Analysis showed higher occurrence of positive spermatozoa in the copper-exposed groups. Some Annexin positive reactions from all spermatozoa were detected in the control group. In copper-exposed groups positive reaction proved alteration in anterior part of head (acrosome) and in connection segment (mid-piece) of spermatozoa. Detected data evidently confirm adverse effects of high copper sulphate concentrations in rabbit semen on parameters of spermatozoa motility, morphology and membrane integrity. This paper also indicates the lowest possible toxic concentration of copper (3.70 microg CuSO4/mL) to rabbit spermatozoa in relation to motility.
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Greytak SR, Tarrant AM, Nacci D, Hahn ME, Callard GV. Estrogen responses in killifish (Fundulus heteroclitus) from polluted and unpolluted environments are site- and gene-specific. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2010; 99:291-299. [PMID: 20570371 PMCID: PMC2907899 DOI: 10.1016/j.aquatox.2010.05.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2010] [Revised: 04/30/2010] [Accepted: 05/12/2010] [Indexed: 05/26/2023]
Abstract
Epidemiological, ecological, and laboratory-based studies support the hypothesis that endocrine disrupting chemicals (EDCs) in the environment are responsible for developmental and reproductive abnormalities. We have previously described a killifish population resident in a highly polluted Superfund site (New Bedford Harbor, NBH) that shows evidence of exposure to an estrogenic environment and endocrine disruption. Here, we compare NBH with a local reference population (Scorton Creek, SC) for developmental patterns and direct effects of exogenous estradiol on the estrogenic markers, brain cytochrome P450 aromatase (CYP19A2 or AroB), hepatic vitellogenin (Vtg), and hepatic estrogen receptor alpha (ER alpha). In contrast to our previous observation of elevated ER alpha in NBH embryos, developmental levels of AroB and Vtg mRNAs did not differ between the two sites, demonstrating that not all estrogen-responsive genes are upregulated in NBH embryos. A dose-response experiment showed that NBH larvae are less responsive (lower maximum induction, as measured by ER alpha) and less sensitive (higher EC(50) for induction, as measured by AroB) to estradiol than SC larvae, changes that would be adaptive in an estrogenic environment. In contrast, induction of Vtg mRNA is similar in the two populations, indicating that the adaptive mechanism is target gene-specific. Based on the lower basal levels of ER alpha mRNA in several tissues from adult NBH fish vs SC fish (Greytak and Callard, 2007), we predicted estrogen hyporesponsiveness; however, induction of ER alpha by estradiol exposure in reproductively inactive males did not differ between the two sites. Moreover, AroB was more responsive and Vtg induction was greater (2d) or similar (5d) in NBH as compared to SC males. Worth noting is the high inter-individual variability in estrogen responses of gene targets, especially in NBH killifish, which may indicate evolving preadaptive or adaptive mechanisms. In conclusion, although multi-generational exposure to a highly polluted environment is associated with changes in basal levels of ER alpha mRNA, this is not a simple predictor of estrogen responsiveness. We hypothesize that adaptation of killifish to the estrogenic and polluted environment may be occurring through diverse mechanisms that are gene-, tissue type- and life-stage-specific.
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Affiliation(s)
| | - Ann M. Tarrant
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole MA 02543, USA
| | - Diane Nacci
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett RI 02879
| | - Mark E. Hahn
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole MA 02543, USA
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Castellini C, Mourvaki E, Sartini B, Cardinali R, Moretti E, Collodel G, Fortaner S, Sabbioni E, Renieri T. In vitro toxic effects of metal compounds on kinetic traits and ultrastructure of rabbit spermatozoa. Reprod Toxicol 2009; 27:46-54. [DOI: 10.1016/j.reprotox.2008.12.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2008] [Revised: 11/05/2008] [Accepted: 12/04/2008] [Indexed: 01/09/2023]
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Kovacic P, Somanathan R. Mechanism of teratogenesis: Electron transfer, reactive oxygen species, and antioxidants. ACTA ACUST UNITED AC 2007; 78:308-25. [PMID: 17315244 DOI: 10.1002/bdrc.20081] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Teratogenesis has been a topic of increasing interest and concern in recent years, generating controversy in association with danger to humans and other living things. A veritable host of chemicals is known to be involved, encompassing a wide variety of classes, both organic and inorganic. Contact with these chemicals is virtually unavoidable due to contamination of air, water, ground, food, beverages, and household items, as well as exposure to medicinals. The resulting adverse effects on reproduction are numerous. There is uncertainty regarding the mode of action of these chemicals, although various theories have been advanced, e.g., disruption of the central nervous system (CNS), DNA attack, enzyme inhibition, interference with hormonal action, and insult to membranes, proteins, and mitochondria. This review provides extensive evidence for involvement of oxidative stress (OS) and electron transfer (ET) as a unifying theme. Successful application of the mechanistic approach is made to all of the main classes of toxins, in addition to large numbers of miscellaneous types. We believe it is not coincidental that the vast majority of these substances incorporate ET functionalities (quinone, metal complex, ArNO2, or conjugated iminium) either per se or in metabolites, potentially giving rise to reactive oxygen species (ROS) by redox cycling. Some categories, e.g., peroxides and radiation, appear to generate ROS by non-ET routes. Other mechanisms are briefly addressed; a multifaceted approach to mode of action appears to be the most logical. Our framework should increase understanding and contribute to preventative measures, such as use of antioxidants.
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Affiliation(s)
- Peter Kovacic
- Department of Chemistry, San Diego State University, San Diego, California 92182, USA.
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Leoni G, Bogliolo L, Deiana G, Berlinguer F, Rosati I, Pintus PP, Ledda S, Naitana S. Influence of cadmium exposure on in vitro ovine gamete dysfunction. Reprod Toxicol 2002; 16:371-77. [PMID: 12220597 DOI: 10.1016/s0890-6238(02)00040-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study was conducted to determine the in vitro effects of three different cadmium concentrations (0, 2, and 20 microM CdCl(2)) on oocyte maturation, fertilisation, and acrosome integrity and sperm viability in sheep. Cumulus-oocyte complexes were recovered from ovaries of slaughtered sheep and sperm were collected by artificial vagina from adult rams. The oocyte maturation rate was significantly affected (P < 0.001) by Cd at both concentrations, with a metaphase II (MII) rate of 96.8, 63.8, and 32.0% for 0, 2, and 20 microM cadmium, respectively. In the second experiment, the presence of Cd significantly decreased (P < 0.01) the rate of oocytes resting in MII after 24-h postmaturation culture, compared with the control group (93.8 versus 29.0 and 19.8%, respectively, for 0, 2, and 20 microM Cd). Oocytes cultured with Cd 2 microM showed a higher activation rate (59.5%, P < 0.001) with one or two pronucleus than with 0 and 20 microM Cd (6.2 and 22.9%, respectively). During fertilisation the presence of fertilised oocytes was decreased in both culture systems with Cd compared with the control (76.1, 25.9, and 4.7% for 0, 2, and 20 microM Cd, respectively; P < 0.001) while polyspermy was increased in the 2 microM Cd group (23.5 for 2 microM versus 6.7 and 0%, respectively, for 0 and 20 microM groups). In both experiments Cd significantly increased (P < 0.001) the rates of oocyte degeneration. In the third experiment, Cd 20 microM significantly decreased (P < 0.01) the viability rate (35.6%) of spermatozoa compared with 2 microM (57.6%) and 0 microM (54.4%) while Cd 2 microM increased (P < 0.01) acrosome-reacted spermatozoa (45.2%) compared with 20 microM (32.5%) and control (31.9%). The results suggest that in vitro cadmium at the lowest dose tested affects the physiological function of both ovine gametes but at higher dose tested can compromise cell viability.
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Affiliation(s)
- Giovanni Leoni
- Department of Animal Biology, University of Sassari, V Vienna 2, 07100 Sassari, Italy.
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Determination of Hg22+Ions Using a Modified Glassy Carbon Electrode with 2,2':6':2''-Terpyridine. B KOREAN CHEM SOC 2002. [DOI: 10.5012/bkcs.2002.23.2.346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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