1
|
Rhouma MB, Venditti M, Haddadi A, Knani L, Chouchene L, Boughammoura S, Reiter RJ, Minucci S, Messaoudi I. Melatonin counteracts cadmium-induced rat testicular toxicity via the mechanistic target rapamycin (mTOR) pathway. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2024; 341:470-482. [PMID: 38433718 DOI: 10.1002/jez.2792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/19/2023] [Accepted: 12/29/2023] [Indexed: 03/05/2024]
Abstract
The protective action of melatonin (MLT) against the harmful effects of cadmium (Cd) on testicular activity in rats has been documented previously; however, the involved molecular mechanisms have yet to be elucidated. Herein, we investigate the involvement of the mammalian target of rapamycin (mTOR) on the ability of MLT to counteract the damage induced by Cd on the rat testicular activity. Our study confirmed that Cd has harmful effects on the testes of rats and the protective action exerted by MLT. We reported, for the first time, that the addition of rapamycin (Rapa), a specific mTOR inhibitor, to animals co-treated with Cd and MLT completely abolished the beneficial effects exerted by MLT, indicating that the mTOR pathway partially modulates its helpful effects on Cd testicular toxicity. Interestingly, Rapa-alone treatment, provoking mTOR inhibition, produced altered morphological parameters, increased autophagy of germ and somatic cells, and reduced serum testosterone concentration. In addition, mTOR inhibition also reduced protein levels of markers of steroidogenesis (3β-Hydroxysteroid dehydrogenase) and blood-testis barrier integrity (occludin and connexin 43). Finally, Rapa altered sperm parameters as well as the ability of mature spermatozoa to perform a proper acrosome reaction. Although further investigation is needed to better clarify the molecular pathway involved in MLT action, we confirm that MLT alleviating Cd effects can be used as a supplement to enhance testicular function and improve male gamete quality.
Collapse
Affiliation(s)
- Mariem B Rhouma
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressourcés, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisia
| | - Massimo Venditti
- Dipartimento di Medicina Sperimentale, Sez. Fisiologia Umana e Funzioni Biologiche Integrate "F. Bottazzi", Università degli Studi della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Asma Haddadi
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressourcés, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisia
| | - Latifa Knani
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressourcés, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisia
| | - Lina Chouchene
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressourcés, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisia
| | - Sana Boughammoura
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressourcés, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisia
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, Texas, USA
| | - Sergio Minucci
- Dipartimento di Medicina Sperimentale, Sez. Fisiologia Umana e Funzioni Biologiche Integrate "F. Bottazzi", Università degli Studi della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Imed Messaoudi
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressourcés, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisia
| |
Collapse
|
2
|
Manfo FPT, Nimako C, Nantia EA, Suh CF, Chenwi SP, Cho-Ngwa F, Moundipa PF, Nakayama SMM, Ishizuka M, Ikenaka Y. Exposure of Male Farmers and Nonfarmers to Neonicotinoid Pesticides in the South-West and Littoral Regions of Cameroon: A Comparative Study. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2024. [PMID: 38517100 DOI: 10.1002/etc.5842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/03/2023] [Accepted: 02/07/2024] [Indexed: 03/23/2024]
Abstract
Pesticides, especially the newly developed neonicotinoids, are increasingly used in many countries around the world, including Cameroon, to control pests involved in crop destruction or disease transmission. Unfortunately, the pesticides also pose tremendous environmental problems because a predominant amount of their residues enter environmental matrices to affect other nontargeted species including humans. This therefore calls for continuous biomonitoring of these insecticides in human populations. The present study sought to assess the neonicotinoid insecticide exposures in two agrarian regions of Cameroon, the South-West region and Littoral region. The study involved 188 men, including 125 farmers and 63 nonfarmers. Spot urine samples were obtained from these subjects and subjected to liquid chromatographic-tandem mass spectrometric analysis for concentrations of neonicotinoid compounds, including acetamiprid, clothianidin, dinotefuran, imidacloprid, thiacloprid, nitenpyram, thiamethoxam, and N-dm-acetamiprid. Neonicotinoid compounds were detected in all study participants, and residues of all the screened pesticides were detected among participants. N-dm-Acetamiprid and imidacloprid were the most prevalent among the subjects (100.0% and 93.1%, respectively), whereas nitenpyram was less common (3.2%). The median values of imidacloprid and total urinary neonicotinoid concentrations were elevated among farmers (0.258 vs. 0.126 µg/L and 0.829 vs. 0.312 µg/L, respectively). Altogether the findings showed that both the farmer and nonfarmer study populations of Cameroon were exposed to multiple residues of neonicotinoids, with relatively higher levels of pesticides generally recorded among farmers. Although exposure levels of the neonicotinoids were generally lower than their respective reference doses, these results warrant further research on the health risk evaluation of multiple residues of the pesticides and reinforcement of control measures to minimize the exposure risks, especially among farmers. Environ Toxicol Chem 2024;00:1-13. © 2024 SETAC.
Collapse
Affiliation(s)
- Faustin Pascal Tsagué Manfo
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, Buea, Cameroon
- Laboratory for Drugs and Molecular Diagnostics Research (ANDI Centre of Excellence for Onchocerciasis Drug Research), Biotechnology Unit, Faculty of Science, University of Buea, Buea, Cameroon
| | - Collins Nimako
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- One Health Research Center, Hokkaido University, Hokkaido, Japan
| | - Edouard Akono Nantia
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Christian Fusi Suh
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, Buea, Cameroon
| | - Shu Policap Chenwi
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, Buea, Cameroon
| | - Fidelis Cho-Ngwa
- Laboratory for Drugs and Molecular Diagnostics Research (ANDI Centre of Excellence for Onchocerciasis Drug Research), Biotechnology Unit, Faculty of Science, University of Buea, Buea, Cameroon
- National Higher Polytechnic Institute, University of Bamenda, Bambili, Cameroon
| | - Paul Fewou Moundipa
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Shouta M M Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- One Health Research Center, Hokkaido University, Hokkaido, Japan
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
- Translational Research Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| |
Collapse
|
3
|
Enangue Njembele AN, Seppo Njembele MAP, Dicka kwambe EH, Hamdja Ngoniri A, Ntyam epse Ondo S, Etchu KA. Impact of pesticides exposure on Archachatina marginata snails in four Cameroon monomodal rainforest sites. PLoS One 2024; 19:e0297369. [PMID: 38437232 PMCID: PMC10911591 DOI: 10.1371/journal.pone.0297369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/29/2023] [Indexed: 03/06/2024] Open
Abstract
Cameroon monomodal rainforest zone has a strong agricultural activity and is therefore exposed to pesticides. Furthermore, the area possesses climatic factors that favor the growth of Achatinadea snails known as African giant snails, a delicacy for the local population. The present study aimed to evaluate pesticides contamination (less vs more exposed areas) through assessment of exposure and impact on Achatinadea snails. Achatinadea snails were collected within intensive agricultural areas (Njombe and Kribi rural) and in areas with less agricultural activity (Ebodje and Dibombari). Collection was performed at night between July and September 2020 using an adapted square kilometer method. Type, number, weight, and size of the collected snails were analyzed and compared using Welsh's One-way Analysis of variance (ANOVA). After removing the soft part from the shell, the presence of pesticides was determined using mass spectrometry. Histological analysis of kidney and ovo-testis was performed using eosin-hematoxylin staining. Results showed that the main variety of snails collected are Archachatina marginata. In areas with less agricultural activity, snails are bigger than those from more agricultural areas heavily using pesticides. Furthermore, pesticides detection showed that glyphosate, but not metalaxyl, is present in animals coming from all the collection sites. Cypermethrin was found in all the samples except in those from Dibombari. Histology revealed that the structure of the kidney and ovo-testis of snails from more exposed areas is impaired. In conclusion, this study revealed that some pesticides are transferred to snail and impair the structure of important organs.
Collapse
Affiliation(s)
| | | | | | | | - Sylvie Ntyam epse Ondo
- Nkolbisson Headquarter, Institute of Agricultural Research for Development (IRAD), Nkolbisson, Yaoundé, Cameroon
| | - Kingsley Agbor Etchu
- Nkolbisson Headquarter, Institute of Agricultural Research for Development (IRAD), Nkolbisson, Yaoundé, Cameroon
| |
Collapse
|
4
|
Nkontcheu Kenko DB, Ngameni NT, Kamta PN. Environmental assessment of the influence of pesticides on non-target arthropods using PRIMET, a pesticide hazard model, in the Tiko municipality, Southwest Cameroon. CHEMOSPHERE 2022; 308:136578. [PMID: 36162518 DOI: 10.1016/j.chemosphere.2022.136578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/04/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Pesticide use in farming is unescapable to enhance the harvest and prevent deleterious organisms. Unfortunately, certain pesticide users most often unveil poor practices, remarkably in developing countries. This study aimed at estimating pesticide risk to non-target arthropods (NTAs) using PRIMET (Pesticide Risks in the Tropics to Man, Environment and Trade), a pesticide risk model, in the Tiko municipality, Southwest Cameroon. To achieve this, data was assembled on the pesticide treatment plan (active ingredient, crops, dosage, number of applications, application interval) and ecotoxicological properties (LR50), and typeset one at the time in PRIMET 2.0 for risk appraisal. The model estimated the Acceptable Effect Concentration (AECNTA), the In-Field and Off-Field Exposure (PEC) and Exposure Toxicity Ratio (ETR = PEC/AECNTA). If ETR < 1, there is "No Risk", if 1 ≤ ETR≤ 100, there is a "Possible Risk", and if ETR > 100, there is a "Definite Risk". Amongst the thirty-nine (39) pesticides evaluated, the most dangerous compound was imidacloprid (ETRIF = 255 000 000), followed by cypermethrin (ETRIF = 299 800) and oxamyl (ETRIF = 57 917). Epoxiconazole was the only fungicide, out of fourteen predicted to pose a definite in-field risk to NTAs with ETRIF = 1491. Half of the fungicides (50%) posed a possible in-field risk. One third of herbicides evaluated posed a possible in-field risk to NTAs. In this classification, paraquat (ETRIF = 51) exhibited the highest risk. All the herbicides were predicted for no off-field risk to NTAs. NTAs seemed to be more tolerant to most fungicides and herbicides than insecticides. The strengthening of the directive on pesticide purchasing and operation is inevitability in order to protect anthropoid and environmental health.
Collapse
Affiliation(s)
| | | | - Parfait Nkontcheu Kamta
- Department of Forestry, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Cameroon
| |
Collapse
|
5
|
Ikokide EJ, Oyagbemi AA, Oyeyemi MO. Impacts of cadmium on male fertility: Lessons learnt so far. Andrologia 2022; 54:e14516. [PMID: 35765120 DOI: 10.1111/and.14516] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/19/2022] [Accepted: 05/13/2022] [Indexed: 01/04/2023] Open
Abstract
Cadmium (Cd) is one of the most dangerous heavy metals in the world. Globally, toxicities associated with cadmium and its attendant negative impact on humans and animals cannot be under-estimated. Cd is a heavy metal, and people are exposed to it through contaminated foods and smoking. Cd exerts its deleterious impacts on the testes (male reproductive system) by inducing oxidative stress, spermatogenic cells apoptosis, testicular inflammation, decreasing androgenic and sperm cell functions, disrupting ionic homeostasis, pathways and epigenetic gene regulation, damaging vascular endothelium and blood testes barrier. In association with other industrial by-products, Cd has been incriminated for the recent decline of male fertility rate seen in both man and animals. Understanding the processes involved in Cd-induced testicular toxicity is vital for the innovation of techniques that will help ameliorate infertility in males. In this review, we summed up recent studies on the processes of testicular toxicity and male infertility due to Cd exposure. Also, the usage of different compounds including phytochemicals, and plant extracts to manage Cd reprotoxicity will be reviewed.
Collapse
Affiliation(s)
- Emmanuel Joseph Ikokide
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ademola Adetokunbo Oyagbemi
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | | |
Collapse
|
6
|
Nkontcheu Kenko DB, Ngameni NT. Assessment of ecotoxicological effects of agrochemicals on bees using the PRIMET model, in the Tiko plain (South-West Cameroon). Heliyon 2022; 8:e09154. [PMID: 35345403 PMCID: PMC8956873 DOI: 10.1016/j.heliyon.2022.e09154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/27/2022] [Accepted: 03/16/2022] [Indexed: 11/23/2022] Open
Abstract
Pesticide utilization in agriculture has many harmful effects of non-target organisms. This study assessed pesticide risk to bees using PRIMET (Pesticide Risks in the Tropics to Man, Environment and Trade), a pesticide risk model. Data was collected on pesticide application scheme (active ingredient, crop, dose, number of applications, application interval) and ecotoxicological properties (LD50-Bee). These two groups of variables were introduced one after the other in PRIMET 2.0 to obtain the Predicted Exposure Concentration (PECbee), No Effect Concentration (NECbee) and Exposure Toxicity Ratio (ETRbee = PECbee/NECbee). Eight insecticides (out of 15 assessed) and 1 nematicide (out of 1) posed a Definite Risk to bees with imidacloprid (PEC = 4412 g/ha; ETR = 1.09E+07) at the top position. Six insecticides (out of 16), and 1 nematicide (out of 1) posed a Possible Risk to bees. The insecticide oxamyl (PEC = 2044g/ha, ETR = 87) had the highest ETR in this category, followed by the nematicide ethoprophos (PEC = 5.4E+04 g/ha; ETR = 69). The results of this study revealed that 27 compounds, including 1 insecticide (out of 15), 10 herbicides (out of 10) and 16 fungicides (out of 16) posed No Risk to bees. Herbicides and fungicides appeared “safer” for bees as compared to other pesticide families. The fungicides, mancozeb (PEC = 1 g/ha, ETR = 0.006) and maneb (PEC = 1 g/ha, ETR = 0.006) had the lowest ETR out of all the 43 compounds assessed in the study. Regulation on the importation, distribution and use should be reinforced for very hazardous compounds such as imidacloprid, carbofuran, thiamethoxam and metaldehyde. Substituting the most toxic pesticides with less toxic ones such as novaluron (insecticide), oxadiazon (herbicide), mancozeb (fungicide) and maneb (fungicide) may help to reduce pesticide pressure on the environment.
Collapse
Affiliation(s)
- Daniel Brice Nkontcheu Kenko
- Zoology Laboratory, Department of Animal Biology and Conservation, Faculty of Science, University of Buea, P.O. Box 63 Buea, South-West Region, Cameroon.,Biology and Applied Ecology Research Unit, Dschang School of Science and Technology, University of Dschang, P.O. Box 67 Dschang, West Region, Cameroon
| | - Norbert Tchamadeu Ngameni
- Biology and Applied Ecology Research Unit, Dschang School of Science and Technology, University of Dschang, P.O. Box 67 Dschang, West Region, Cameroon
| |
Collapse
|
7
|
Jatsa HB, Femoe UM, Dongmo CN, Kamwa RIN, Fesuh BN, Tchuem Tchuente LA, Kamtchouing P. Reduction of testosterone levels in Schistosoma haematobium- or Schistosoma mansoni-infected men: a cross-sectional study in two schistosomiasis-endemic areas of the Adamawa region of Cameroon. BMC Infect Dis 2022; 22:230. [PMID: 35255836 PMCID: PMC8900354 DOI: 10.1186/s12879-022-07195-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/22/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The incidence of schistosomiasis-induced male reproductive dysfunction and infertility is probably underestimated compared to female genital schistosomiasis. This study aimed to investigate the impact of Schistosoma haematobium or S. mansoni infection on the reproductive function of men of reproductive age in Tibati and Wouldé, two endemic schistosomiasis areas in the Adamawa region of Cameroon. METHODS A total of 89 men of reproductive age (range 14-56 years) from two localities were enrolled in the study, with 51 in Tibati and 38 in Wouldé. Each participant was submitted to a questionnaire to document data on sociodemographic and stream contact behaviors. A medical examination was performed to measure the testes' circumference and evaluate genital tract pathologies. Stool and urine samples were collected and screened for the presence of S. haematobium or S. mansoni ova. Blood serum was used to assess the levels of transaminases and testosterone. RESULTS Schistosoma haematobium was present only in Tibati, with a prevalence of 31.37%. The S. mansoni prevalence was 3.92% at Tibati and 44.71% at Wouldé. The intensity of infection was 22.12 ± 9.57 eggs/10 mL for S. haematobium and 128.10 ± 3.76 epg for S. mansoni. Serum transaminase activity and the mean testicular circumference of Schistosoma-positive individuals were close to Schistosoma-negative individuals. However, the testes size was more prominent in S. mansoni-positive individuals than in S. haematobium-positive individuals (P < 0.05). The serum testosterone levels of S. haematobium- and S. mansoni-positive men were significantly reduced by 56.07% (P < 0.001) and 51.94% (P < 0.01), respectively, in comparison to those of Schistosoma-negative men. A significant and negative correlation was established between schistosomiasis and the low serum testosterone level. Male genital tract pathologies such as scrotal abnormalities, varicocele, nodular epididymis, inguinal hernia, and hydrocele were recorded in both Schistosoma-positive and Schistosoma-negative men. However, no significant link was established between schistosomiasis infection and these pathologies. CONCLUSION These results demonstrated that infection with S. haematobium or S. mansoni is associated with low production of the reproductive hormone testosterone and may be a significant cause of male infertility.
Collapse
Affiliation(s)
- Hermine Boukeng Jatsa
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon. .,Centre for Schistosomiasis and Parasitology, P.O. Box 7244, Yaoundé, Cameroon.
| | - Ulrich Membe Femoe
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.,Centre for Schistosomiasis and Parasitology, P.O. Box 7244, Yaoundé, Cameroon
| | - Calvine Noumedem Dongmo
- Centre for Schistosomiasis and Parasitology, P.O. Box 7244, Yaoundé, Cameroon.,Laboratory of Parasitology and Ecology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | | | - Betrand Nono Fesuh
- Laboratory of Mathematical Engineering and Information System, Department of Mathematics, National Advances School of Engineering of Yaoundé, University of Yaoundé I, P.O. Box 8390, Yaoundé, Cameroon
| | - Louis-Albert Tchuem Tchuente
- Centre for Schistosomiasis and Parasitology, P.O. Box 7244, Yaoundé, Cameroon.,Laboratory of Parasitology and Ecology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Pierre Kamtchouing
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| |
Collapse
|
8
|
Galani YJH, Houbraken M, Wumbei A, Djeugap JF, Fotio D, Gong YY, Spanoghe P. Contamination of Foods from Cameroon with Residues of 20 Halogenated Pesticides, and Health Risk of Adult Human Dietary Exposure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18095043. [PMID: 34068747 PMCID: PMC8126213 DOI: 10.3390/ijerph18095043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/30/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022]
Abstract
(1) Background: Halogenated pesticides are abundantly used in Cameroon, but there is no information on the health risk of consumers from exposure to their residues in foods. (2) Methods: Residues of 20 halogenated pesticides were determined in 11 agricultural products collected in the 3 largest cities of Cameroon using QuEChERS extraction and gas chromatography with electron capture detector (GC-ECD), and health risk from dietary exposure was assessed. (3) Results: Organochlorines pesticides aldrin, p,p'-dichlorodiphenyl-trichloroethane (DDT) and β-hexachlorocyclohexane (β-HCH) found in 85.0%, 81.9% and 72.5% of samples, respectively, were the most frequently detected. The highest average concentrations of residues were 1.12, 0.74 and 0.39 mg/kg for methoxychlor, alachlor and β-HCH, respectively, found in chilli pepper. Chili pepper (58.9%), cowpea (56.8%), black beans (56.5%) and kidney beans (54.0%) exhibited the highest residue occurrences. Levels above the European Union maximum residue limits (MRLs) were found for all the 20 pesticides, in 40.1% of the positive analyses, and the food samples contained 14 pesticides banned in Cameroon. Chronic, acute, cumulative and carcinogenic risk assessments revealed that lifetime consumption of maize, black beans, kidney beans, groundnuts and chili pepper contaminated with aldrin, dieldrin, endrin, HCB, heptachlor, o,p'-DDT, p,p'-DDD, p,p'-DDT, p,p'-DDE and β-HCH, could pose health risks. (4) Conclusion: These results show that there is an urgent need of pesticide usage regulation, effective application of pesticide bans and management of obsolete pesticide stocks in Cameroon.
Collapse
Affiliation(s)
- Yamdeu Joseph Hubert Galani
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK;
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; (M.H.); (A.W.); (P.S.)
- Correspondence: or ; Tel.: +44-113-343-7724
| | - Michael Houbraken
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; (M.H.); (A.W.); (P.S.)
| | - Abukari Wumbei
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; (M.H.); (A.W.); (P.S.)
| | - Joseph Fovo Djeugap
- Department of Plant Protection, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang P.O. Box 222, Cameroon;
| | - Daniel Fotio
- Inter-States Pesticides Committee of Central Africa, Yaounde P.O. Box 16344, Cameroon;
| | - Yun Yun Gong
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK;
| | - Pieter Spanoghe
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; (M.H.); (A.W.); (P.S.)
| |
Collapse
|
9
|
Zhou X, Zhang M, Wang Y, Xia H, Zhu L, Li G, Rong L, Dong H, Chen R, Tang S, Yu M. Cholinesterase homozygous genotype as susceptible biomarker of hypertriglyceridaemia for pesticide-exposed agricultural workers. Biomarkers 2021; 26:335-342. [PMID: 33617373 DOI: 10.1080/1354750x.2021.1893815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
PURPOSE Dyslipidemia is an emerging metabolic disorder among pesticide-exposed agricultural workers, and this study was aimed to explore biomarkers of hypertriglyceridaemia susceptibility. METHODS This cross-sectional study recruited 72 pesticide-exposed subjects and 78 non-exposed controls. Lipid profile, cholinesterase activity, and thyroid hormones were analysed with routine assays. Six loci, including rs11206244 and rs2235544 for deiodinase 1, rs12885300 and rs225014 for deiodinase 2, rs1803274 for butyrylcholinesterase, and rs3757869 for acetylcholinesterase were genotyped using an improved multiplex ligation detection reaction technique. RESULTS Pesticide-exposed subjects showed higher levels of triglyceride than controls (p = 0.009), although there were comparable cholinesterase activity and genotype frequencies of all six loci between pesticide-exposed subjects and controls. Pesticide-exposed subjects with homozygous genotype of cholinesterase had increased triglyceride levels than controls (p < 0.05). The percentage of hypertriglyceridaemia was 28.6% and 8.8% for pesticide-exposed subjects and controls with homozygous butyrylcholinesterase genotype (p = 0.007) and 20.8% and 14.3% with homozygous acetylcholinesterase genotype (p = 0.792), respectively. Multivariate logistic regression analyses found that odds ratio of hypertriglyceridaemia is 21.92 and 4.56 for pesticide-exposed subjects with homozygous genotype of butyrylcholinesterase (p = 0.001) and acetylcholinesterase (p = 0.036), respectively. CONCLUSIONS Cholinesterase homozygous genotype might be a potential susceptible biomarker in screening pesticide-exposed agricultural workers vulnerable to hypertriglyceridaemia.
Collapse
Affiliation(s)
- Xingfan Zhou
- Beijing Key Laboratory of Occupational Safety and Health, Beijing Municipal Institute of Labour Protection, Beijing, China
| | - Min Zhang
- Department of Occupational Diseases, Hangzhou Medical College, Hangzhou, China
| | - Yuqian Wang
- Beijing Key Laboratory of Occupational Safety and Health, Beijing Municipal Institute of Labour Protection, Beijing, China
| | - Hailing Xia
- Department of Occupational Diseases, Hangzhou Medical College, Hangzhou, China
| | - Lijin Zhu
- Department of Occupational Diseases, Hangzhou Medical College, Hangzhou, China
| | - Guangyi Li
- Institute of Endemic and Chronic Disease Control and Prevention, Zibo centers for Disease Control and Prevention, Zibo, China
| | - Li Rong
- Clinical Medical Laboratory, Beijing Prevention and Treatment Hospital of Occupational Disease for Chemical Industry, Beijing, China
| | - Huahuang Dong
- Clinical Medical Laboratory, Beijing Prevention and Treatment Hospital of Occupational Disease for Chemical Industry, Beijing, China
| | - Rui Chen
- Beijing Key Laboratory of Occupational Safety and Health, Beijing Municipal Institute of Labour Protection, Beijing, China
| | - Shichuan Tang
- Beijing Key Laboratory of Occupational Safety and Health, Beijing Municipal Institute of Labour Protection, Beijing, China
| | - Min Yu
- Department of Occupational Diseases, Hangzhou Medical College, Hangzhou, China
| |
Collapse
|
10
|
Manfo FPT, Suh CF, Nantia EA, Moundipa PF, Cho-Ngwa F. Occupational use of agrochemicals results in inhibited cholinesterase activity and altered reproductive hormone levels in male farmers from Buea, Cameroon. Toxicol Res (Camb) 2021; 10:232-248. [PMID: 33884174 DOI: 10.1093/toxres/tfaa113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/05/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023] Open
Abstract
The efficiency of agro pesticides and fertilizers in eliminating pests and scaling up crop yield has motivated farmers to increase their use. Unfortunately, health hazards caused on farmers by these agrochemicals are of growing concern, though not well elucidated. In order to evaluate the effects of occupational exposure to agrochemicals on some key parameters of male farmers' health in Buea Subdivision, Cameroon, a total of 101 men, including 62 farmers using the agrochemicals and a reference population of 39 men not involved in occupational utilization of the agrochemicals, were interviewed on use of protective equipment, exposure symptoms and reproductive health status. Thereafter, serum cholinesterase [acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE)] activities, total antioxidant capacity and reproductive hormones [follicle-stimulating hormone (FSH), luteinizing hormone and testosterone] were assessed. Results revealed that farmers mainly used insecticides followed by fungicides, herbicides and fertilizers, but with inadequate protective measures. The use of agrochemicals resulted in several exposure symptoms including weakness, itches, burning sensation, headache, sneezing, coughing and vomiting, as well as decrease in serum AChE activity when compared to the reference population. The agrochemicals impacted negatively on the farmers' reproductive health as evidenced by increased FSH levels. Taken altogether, these results suggested that exposure to agrochemicals adversely affects farmers' health. Therefore, there is a need to further sensitize the farmers on the use of protective equipment to mitigate the exposure and resulting health hazards.
Collapse
Affiliation(s)
- Faustin Pascal Tsagué Manfo
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
| | - Christian Fusi Suh
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
| | - Edouard Akono Nantia
- Department of Biochemistry, Faculty of Science, University of Bamenda, P.O. Box 39, Bambili, Cameroon
| | - Paul Fewou Moundipa
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Fidelis Cho-Ngwa
- Laboratory for Drugs and Molecular Diagnostics Research (ANDI Centre of Excellence for Onchocerciasis Drug Research), Biotechnology Unit, University of Buea, P.O. Box 63, Buea, Cameroon
| |
Collapse
|
11
|
Monitoring and dietary risk assessment of 81 pesticide residues in 11 local agricultural products from the 3 largest cities of Cameroon. Food Control 2020. [DOI: 10.1016/j.foodcont.2020.107416] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
12
|
Bhardwaj JK, Panchal H, Saraf P. Cadmium as a testicular toxicant: A Review. J Appl Toxicol 2020; 41:105-117. [DOI: 10.1002/jat.4055] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/04/2020] [Accepted: 08/10/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Jitender Kumar Bhardwaj
- Reproductive Physiology Laboratory, Department of Zoology Kurukshetra University Kurukshetra Haryana India
| | - Harish Panchal
- Reproductive Physiology Laboratory, Department of Zoology Kurukshetra University Kurukshetra Haryana India
| | - Priyanka Saraf
- Reproductive Physiology Laboratory, Department of Zoology Kurukshetra University Kurukshetra Haryana India
| |
Collapse
|
13
|
Zhu S, Zhou J, Sun X, Zhou Z, Zhu Q. ROS accumulation contributes to abamectin‐induced apoptosis and autophagy via the inactivation of PI3K/AKT/mTOR pathway in TM3 Leydig cells. J Biochem Mol Toxicol 2020; 34:e22505. [DOI: 10.1002/jbt.22505] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 03/13/2020] [Accepted: 03/26/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Shanshan Zhu
- Department of Scientific Research, School of Optometry and Ophthalmology Eye HospitalWenzhou Medical University Wenzhou Zhejiang China
- Department of Scientific ResearchState Key Laboratory of Optometry, Ophthalmology, and Visual Science Wenzhou Zhejiang China
| | - Jing Zhou
- Department of Scientific Research, School of Optometry and Ophthalmology Eye HospitalWenzhou Medical University Wenzhou Zhejiang China
- Department of Scientific ResearchState Key Laboratory of Optometry, Ophthalmology, and Visual Science Wenzhou Zhejiang China
| | - Xiaoyu Sun
- Vaccination and Immunoprophylaxis DivisionWenzhou Center for Disease Control and Prevention Wenzhou Zhejiang China
| | - Zhonglou Zhou
- Department of Scientific Research, School of Optometry and Ophthalmology Eye HospitalWenzhou Medical University Wenzhou Zhejiang China
- Department of Scientific ResearchState Key Laboratory of Optometry, Ophthalmology, and Visual Science Wenzhou Zhejiang China
| | - Qiqi Zhu
- Department of Scientific Research, School of Optometry and Ophthalmology Eye HospitalWenzhou Medical University Wenzhou Zhejiang China
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's HospitalWenzhou Medical University Wenzhou Zhejiang China
| |
Collapse
|
14
|
Rebuzzini P, Civello C, Nantia Akono E, Fassina L, Zuccotti M, Garagna S. Chronic cypermethrin exposure alters mouse embryonic stem cell growth kinetics, induces Phase II detoxification response and affects pluripotency and differentiation gene expression. Eur J Histochem 2020; 64. [PMID: 32214279 PMCID: PMC7036707 DOI: 10.4081/ejh.2020.3084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 02/05/2020] [Indexed: 12/21/2022] Open
Abstract
Worldwide uncontrolled use of synthetic pyrethroids contaminates water and soil leading to health hazards. Cypermethrin (CYP), the most used pyrethroid, induces detrimental effects on adults and embryos at different stages of development of several vertebrate species. In Mammals, CYP-induced alterations have been previously described in adult somatic cells and in post-implantation embryos. It remains unknown whether CYP has effects during pre-implantation development. Studies to access pre-implantation embryo toxicity are complicated by the restricted number of blastocysts that may be obtained, either in vivo or in vitro. Embryonic stem cells (ESCs) are an in vitro model study that overcomes these limitations, as millions of pluripotent cells are available to the analysis. Also, ESCs maintain the same pluripotency characteristics and differentiation capacity of the inner cell mass (ICM) present in the blastocyst, from which they derive. In this work, using mouse R1 ESCs, we studied CYP-induced cell death, ROS production, the activation of oxidative stress-related and detoxification responses and the population growth kinetics following 72 h exposure at the 0.3 mM LD50 dose. Also, the expression levels of pluripotency genes in exposed ESCs and of markers of the three germ layers after their differentiation into embryoid bodies (EBs) were determined. Two apoptotic waves were observed at 12-24 h and at 72 h. The increase of ROS production, at 24 h until the end of the culture period, was accompanied by the induction, at 48 h, of redox-related Cat, Sod1, Sod2, Gpx1 and Gpx4 genes. Up-regulation of Cyp1b1, but not of Cyp1a1, phase I gene was detected at 72 h and induction of Nqo1, Gsta1 and Ugt1a6 phase II genes began at 24 h exposure. The results show that exposed R1 ESCs activate oxidative stress-related and detoxification responses, although not sufficient, during the culture period tested, to warrant recovery of the growth rate observed in untreated cells. Also, CYP exposure altered the expression of Oct-4 and Nanog pluripotency genes in ESCs and, when differentiated into EBs, the expression of Fgf5, Brachyury and Foxa2, early markers of the ectoderm, mesoderm and endoderm germ layers, respectively. NIH/3T3 cells, a differentiated cell line of embryonic origin, were used for comparison.
Collapse
Affiliation(s)
- Paola Rebuzzini
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia.
| | | | | | | | | | | |
Collapse
|
15
|
Phytoremediation and Bioremediation of Pesticide-Contaminated Soil. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10041217] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Management and destruction of obsolete pesticides and the remediation of pesticide-contaminated soil are significant global issues with importance in agriculture, environmental health and quality of life. Pesticide use and management have a history of problems because of insufficient knowledge of proper planning, storage, and use. This manuscript reviews recent literature with an emphasis on the management of obsolete pesticides and remediation of pesticide-contaminated soil. The rhizosphere of plants is a zone of active remediation. Plants also take up contaminated water and remove pesticides from soil. The beneficial effects of growing plants in pesticide-contaminated soil include pesticide transformation by both plant and microbial enzymes. This review addresses recent advances in the remediation of pesticide-contaminated soil with an emphasis on processes that are simple and can be applied widely in any country.
Collapse
|
16
|
Evaluation of the Effects of Agro Pesticides Use on Liver and Kidney Function in Farmers from Buea, Cameroon. J Toxicol 2020; 2020:2305764. [PMID: 32399028 PMCID: PMC7204329 DOI: 10.1155/2020/2305764] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/23/2019] [Accepted: 11/01/2019] [Indexed: 12/22/2022] Open
Abstract
Agro pesticides are increasingly used worldwide to increase crop production. However, health hazards resulting from human exposure to these chemicals, especially from agricultural areas of developing countries have been a growing concern. The objective of this study was to evaluate the impact of occupational exposure to agro pesticides on the health of farmers in the Buea subdivision, which is one of the major agrarian areas in Cameroon. The study was transversal and involved 90 participants including 58 farmers using pesticides and a reference population of 32 men not involved in occupational use of agro pesticides. The participants were interviewed on agro pesticide use and their health status. Thereafter, blood samples were collected from the participants and used for the assessment of biochemical markers of the liver (alanine aminotransferase and aspartate aminotransferase) and the kidney (creatinine and uric acid) function. Results revealed that farmers frequently used insecticides, fungicides, and herbicides in their farming activities. Farmers reported several acute health symptoms related to pesticides use with the common ones being skin rash, eye irritation, and face burn. When compared to the reference population, the farmers showed significantly elevated (p < 0.01) alanine aminotransferase activity. However, other parameters investigated were not affected significantly. These results suggested that farmers were exposed to 3 different classes of agro pesticides, which induced eye and skin affections. Pesticides exposure resulted in alterations of the liver function hence the increased serum alanine aminotransferase activity. Therefore, there is a need to sensitize the farmers on toxicity and liver alteration potential of agro pesticides and the importance of appropriate protective equipment that may minimize exposure.
Collapse
|
17
|
Kada Sanda A, Nantia AE, Manfo TFP, Toboh RT, Abende RE, Adaibum S, Moundipa PF, Kamtchouing P. Subchronic administration of Parastar insecticide induced behavioral changes and impaired motor coordination in male Wistar rats. Drug Chem Toxicol 2020; 45:426-434. [PMID: 31914824 DOI: 10.1080/01480545.2019.1709491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Parastar is an insecticide formulation of lambda-cyhalothrin and imidacloprid largely used for crop protection in North West Region of Cameroon. In the present study, we evaluated the behavioral activities and motor function of Wistar male rats after subchronic treatment with the pesticide formulation. To this end, three groups of adult rats were administered Parastar at doses 1.25, 2.49 and 6.23 mg/kg, respectively, for 35 days. A control group was included and received distilled water. At the end of the treatment, the animals were submitted to behavioral and functional tests (open field test, elevated plus maze test, light-dark box test, forced swimming test, tail suspension test, beam-walking test, grid suspension test and wire hang test) for estimation of anxiety, exploration, depression and motor coordination. Results revealed that Parastar, at the higher doses tested, 2.49 and 6.23 mg/kg, induced anxiogenic-like pattern behavior in rats in all behavioral assays including open field test (total distance moved, total lines crossed, frequency and total time in center square were all reduced), elevated plus maze (decreased total time spent in open arms and the number of entries in open arms of the elevated plus maze), and light-dark box (the dark box duration increased, while light box duration time and frequency of transition between dark and light box decreased). Treatment with 2.49 and 6.23 mg/kg Parastar increased the immobility time of animals in both forced swimming test and tail suspension test. The insecticide induced decrease in the distance traveled, foot slip and number of turns of animals in the beam walking test. Parastar also decreased the animal suspension time in both grid suspension grip-strength test and the wire hang test. Taken altogether, these results suggest that subchronic administration of Parastar at the doses of 2.49 and 6.23 mg/kg induced anxiety-like and depressive-like behavior as well as impaired motor coordination and muscle strength in male rats.
Collapse
Affiliation(s)
- Antoine Kada Sanda
- Department of Biological Sciences, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Akono Edouard Nantia
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - T F Pascal Manfo
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, Buea, Cameroon
| | - Romi T Toboh
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Roxane Essame Abende
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Sterling Adaibum
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Paul Fewou Moundipa
- Department of Biochemistry, Faculty of Science, University of Yaounde 1, Yaounde, Cameroon
| | - Pierre Kamtchouing
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde 1, Yaounde, Cameroon
| |
Collapse
|
18
|
Requena M, López-Villén A, Hernández AF, Parrón T, Navarro Á, Alarcón R. Environmental exposure to pesticides and risk of thyroid diseases. Toxicol Lett 2019; 315:55-63. [PMID: 31445060 DOI: 10.1016/j.toxlet.2019.08.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/14/2019] [Accepted: 08/20/2019] [Indexed: 11/29/2022]
Abstract
Occupational and environmental exposure to pesticides has been associated with thyroid dysfunction, particularly changes in circulating thyroid hormone levels (T3, T4) and thyroid stimulating hormone (TSH). This study assessed the association between environmental exposure to pesticides and the risk of developing thyroid diseases. A population-based case-control study was carried out among Spanish populations living in areas categorized as of high or low pesticide use according to agronomic criteria, which were used as surrogates for environmental exposure to pesticides. The study population consisted of 79.431 individuals diagnosed with goiter, thyrotoxicosis, hypothyroidism, and thyroiditis (according to the International Classification of Diseases, Ninth Revision) and 1.484.257 controls matched for age, sex and area of residence. Data were collected from computerized hospital records for the period 1998 to 2015. Prevalence rates and risk of having thyroid diseases were significantly higher in areas with higher pesticide use, with a 49% greater risk for hypothyroidism, 45% for thyrotoxicosis, 20% for thyroiditis and 5% for goiter. Overall, this study indicates an association between increased environmental exposure to pesticides as a result of a greater agricultural use and diseases of the thyroid gland, thus supporting and extending previous evidence. This study also provides support to the methodology proposed for real-life risk simulation, thus contributing to a better understanding of the real life threat posed by exposure to multiple pesticides from different sources.
Collapse
Affiliation(s)
- Mar Requena
- University of Almería School of Health Sciences, Almería, Spain
| | | | - Antonio F Hernández
- Dept. Legal Medicine and Toxicology, University of Granada School of Medicine, Granada, Spain.
| | - Tesifón Parrón
- University of Almería School of Health Sciences, Almería, Spain; Andalusian Council of Health at Almería Province, Almería, Spain
| | | | - Raquel Alarcón
- University of Almería School of Health Sciences, Almería, Spain
| |
Collapse
|
19
|
Manfo FPT, Harthé C, Nantia EA, Dechaud H, Tchana AN, Zabot MT, Pugeat M, Fewou Moundipa P. Bisphenol A differentially affects male reproductive function biomarkers in a reference population and agro pesticides users from Djutitsa, Cameroon. Toxicol Ind Health 2019; 35:324-335. [DOI: 10.1177/0748233719838437] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The consequences of bisphenol A (BPA) exposure on male reproductive function were studied in two populations from Cameroon, farmers using agro pesticides in Djutitsa (rural area) and townsmen in Yaoundé (urban area, Centre region). Urinary BPA concentration from all participants was measured, and the values were correlated with biochemical markers of male reproductive function. The data showed that BPA could be detected in 92.6% of urine participants, with an average concentration of 2.18 ± 1.97 µg/g creatinine but with no significant difference between the urinary BPA concentration from rural and urban populations. From BPA urinary concentration, the BPA average daily intake was estimated to be 0.06 ± 0.05 μg/kg/day (3.51 µg/day per individual) in the Cameroon population. Interestingly, free and bioavailable testosterone concentrations and estradiol/testosterone ratio correlated with BPA levels in the overall population. When data were analysed according to residence, BPA correlated with total testosterone levels ( r = −0.433) and estradiol/testosterone ratio ( r = 0.338) in the urban residents only, while the rural population exhibited significant increases in sex-hormone-binding globulin with increased BPA exposure. Our data showed that the male Cameroon population is exposed to BPA but that inconstant BPA association to endocrine reproductive markers suggests that other environmental factors in combination with BPA exposure might influence testicular function.
Collapse
Affiliation(s)
| | - Cathérine Harthé
- Laboratoire d’Hormonologie, Centre de Biologie et de Pathologie Est, Groupement Hospitalier Est, Hospices Civils de Lyon, France
| | - Edouard Akono Nantia
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Henri Dechaud
- Laboratoire d’Hormonologie, Centre de Biologie et de Pathologie Est, Groupement Hospitalier Est, Hospices Civils de Lyon, France
- INSERM U1060, France
- Université de Lyon, Lyon, France
| | - Angèle Nkouatchoua Tchana
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Marie-Tthérèse Zabot
- INSERM U1060, France
- Université de Lyon, Lyon, France
- Centre de Biotechnologie Cellulaire, Groupement Hospitalier Est, France
| | - Michel Pugeat
- INSERM U1060, France
- Université de Lyon, Lyon, France
- Institut National de la Recherche Médicale U1060 CaRMen, Fédération d’Endocrinologie, Hospices Civils de Lyon, Université Lyon-1, Bron, France
| | - Paul Fewou Moundipa
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| |
Collapse
|
20
|
Bernieri T, Rodrigues D, Barbosa IR, Ardenghi PG, Basso da Silva L. Occupational exposure to pesticides and thyroid function in Brazilian soybean farmers. CHEMOSPHERE 2019; 218:425-429. [PMID: 30476775 DOI: 10.1016/j.chemosphere.2018.11.124] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 11/12/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Agriculture production has been supported especially by the use of pesticides for crop protection and pest control. Although the agricultural production has been increased by pesticides use, these substances also reach non-target organisms and may become a risk to the health of farmers. Several epidemiological studies in human have investigated the association between exposure to pesticides and altered serum levels of thyroid hormones, reporting both positive and negative results. Overall, the impact of pesticides on human thyroid function is still limited. OBJECTIVE The aim of this study was to access serum levels of free thyroxin (FT4), total triiodothyronine (TT3), thyroid-stimulating hormone (TSH), and butyrylcholinesterase (BChE) in soybean farmers in southern Brazil. METHODS The exposed group was composed by 46 rural workers and 27 subjects not exposed to pesticides composed the control group. All subjects had blood samples collected by venipuncture in order to analyze the serum levels of FT4, TT3, TSH and BChE. RESULTS The results showed a significant decreasing in TSH and increasing in TT3 and FT4 in rural workers, compared to control group. BChE levels were lower in exposed group than in control group. The results suggest that farmers are exposed to mixtures of pesticides with endocrine disruptor properties.
Collapse
Affiliation(s)
- Tanandra Bernieri
- Department of Health Sciences, Feevale University, ERS-239, 2755, Zip Code: 93525-075, Novo Hamburgo, Rio Grande do Sul, Brazil
| | - Dabiana Rodrigues
- Department of Health Sciences, Feevale University, ERS-239, 2755, Zip Code: 93525-075, Novo Hamburgo, Rio Grande do Sul, Brazil
| | - Isadora Randon Barbosa
- Department of Health Sciences, Feevale University, ERS-239, 2755, Zip Code: 93525-075, Novo Hamburgo, Rio Grande do Sul, Brazil
| | - Patrícia Grolli Ardenghi
- Department of Health Sciences, Feevale University, ERS-239, 2755, Zip Code: 93525-075, Novo Hamburgo, Rio Grande do Sul, Brazil
| | - Luciano Basso da Silva
- Department of Health Sciences, Feevale University, ERS-239, 2755, Zip Code: 93525-075, Novo Hamburgo, Rio Grande do Sul, Brazil.
| |
Collapse
|
21
|
Evaluation of 99 Pesticide Residues in Major Agricultural Products from the Western Highlands Zone of Cameroon Using QuEChERS Method Extraction and LC-MS/MS and GC-ECD Analyses. Foods 2018; 7:foods7110184. [PMID: 30405079 PMCID: PMC6262625 DOI: 10.3390/foods7110184] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/05/2018] [Accepted: 11/06/2018] [Indexed: 11/17/2022] Open
Abstract
There is no information available on pesticide residue levels in major food commodities harvested in Cameroon, especially from the western highlands region, the food basket of the country. Hence, this study evaluated the residues of 99 pesticides in 72 samples of 12 agricultural products collected in the region, using QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method extraction, and analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS) and gas chromatography with electron capture detection (GC-ECD). This method was suitable for detecting the targeted compounds: For 81 pesticides by LC-MS/MS, the limit of quantification (LOQ) was between 0.0004 and 0.0537 mg/kg; and for 18 halogenated pesticides by GC-ECD, it ranged from 0.0012 to 0.2180 mg/kg. The residues of 62 pesticides, including 12 banned compounds, were found in the samples. Insecticides (39.7%) were the most prevalent group, with all the samples containing at least one pesticide. Twenty-one pesticides (34.4%) exceeded their European Union maximum residue limits (MRLs) and 22 pesticides (34.4%) were found in all 6 sampling locations. Malathion and p,p′-DDT were the most distributed pesticides, found in almost all the samples and sampling sites. Food items with the highest rates of positive results were chili pepper (23.2%), white pepper (20.2%), kidney beans (17.3%), and soybeans (17.2%). Samples with residues above their MRLs represented 38% of all the positive analyses; chili pepper (6.4%) and kidney beans (5.5%) were found to have the most residues above their MRLs. The most critical food commodities were kidney beans, soybeans, chili pepper, and maize. This data presents scientific evidence that investigation into continuous monitoring and good regulation of pesticide usage in Cameroon is needed, and paves the way for health risks analysis.
Collapse
|
22
|
Nantia EA, Kada AS, Manfo FP, Tangu NN, Mbifung KM, Mbouobda DH, Kenfack A. Parastar insecticide induced changes in reproductive parameters and testicular oxidative stress biomarkers in Wistar male rats. Toxicol Ind Health 2018; 34:499-506. [PMID: 29734926 DOI: 10.1177/0748233718761699] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Parastar is an insecticide formulation of lambda-cyhalothrin and imidacloprid, and it is largely used for crop production improvement in Santa, North West Region of Cameroon. This study aimed at evaluating the effects of Parastar on reproductive parameters and testicular oxidative stress in adult albino Wistar male rats. Twenty rats (154 g ± 28 g) were divided into four groups of five animals each and treated daily with either distilled water (10 mL/kg), 1.25, 2.49 or 6.23 mg/kg of Parastar, respectively, for 35 days. After treatment, animal reproductive function was evaluated through fertility tests, sperm characteristics, testosterone levels and organ weights, while oxidative stress biomarkers were determined on testicular homogenates. Parastar administration resulted into increased seminal vesicle and prostate weights, while body weight remained unaffected. Parastar dose-dependently reduced sperm density and mobility, and the highest dose decreased serum testosterone levels. Parastar also modulated stress biomarkers with increased thiobarbituric acid reactive substances levels, decreased glutathione levels and inhibition of catalase and superoxide dismutase activities. In conclusion, Parastar negatively affected male reproductive function through alteration of testosterone levels, sperm parameters and induction of oxidative stress in rats.
Collapse
Affiliation(s)
- Edouard Akono Nantia
- 1 Faculty of Science, Department of Biochemistry, University of Bamenda, Bambili, Cameroon
| | - Antoine S Kada
- 2 Faculty of Science, Department of Biological Sciences, University of Bamenda, Bambili, Cameroon
| | - Faustin Pt Manfo
- 3 Faculty of Science, Department of Biochemistry and Molecular Biology, University of Buea, Buea, Cameroon
| | - Nehemiah N Tangu
- 1 Faculty of Science, Department of Biochemistry, University of Bamenda, Bambili, Cameroon
| | - Kaghou M Mbifung
- 1 Faculty of Science, Department of Biochemistry, University of Bamenda, Bambili, Cameroon
| | - Desire H Mbouobda
- 4 Department of Biology, Higher Teacher Training School, University of Bamenda, Bambili, Cameroon
| | - Augustave Kenfack
- 5 Faculty of Agronomy and Agricultural Sciences, Department of Animal Production, University of Dschang, Dschang, Cameroon
| |
Collapse
|
23
|
Nantia EA, Moreno-González D, Manfo FP, Gámiz-Gracia L, García-Campaña AM. QuEChERS-based method for the determination of carbamate residues in aromatic herbs by UHPLC-MS/MS. Food Chem 2017; 216:334-41. [DOI: 10.1016/j.foodchem.2016.08.038] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/10/2016] [Accepted: 08/13/2016] [Indexed: 01/15/2023]
|
24
|
Nantia EA, Moreno-González D, Manfo FPT, Sonchieu J, Moundipa PF, García-Campaña AM, Gámiz-Gracia L. Characterization of Carbamate Pesticides in Natural Water from Cameroon. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1231197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Edouard Akono Nantia
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - David Moreno-González
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
| | - Faustin P. T. Manfo
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, Buea, Cameroon
| | - Jean Sonchieu
- High Technical Teacher Training School, University of Bamenda, Bambili, Cameroon
| | - Paul F. Moundipa
- Department of Biochemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Ana M. García-Campaña
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
| | - Laura Gámiz-Gracia
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
| |
Collapse
|
25
|
Ahmed OM, Fahim HI, Boules MW, Ahmed HY. Cardiac and testicular toxicity effects of the latex and ethanolic leaf extract of Calotropis procera on male albino rats in comparison to abamectin. SPRINGERPLUS 2016; 5:1644. [PMID: 27722062 PMCID: PMC5033794 DOI: 10.1186/s40064-016-3326-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 09/15/2016] [Indexed: 11/11/2022]
Abstract
The present study aims to assess the toxic effect of latex and ethanolic leaf extract of Calotropis procera (C. procera), in comparison to abamectin, on serum biomarkers of function and histological integrity of heart and testis in male albino rats. To achieve this aim, the albino rats were separately administered 1/20 and 1/10 of LD50 of C. procera latex, ethanolic C. procera leaf extract and abamectin respectively by oral gavage for 4 and 8 weeks. C. procera latex and leaf extract as well as abamectin markedly elevated the activities of serum CK-MB, AST and LDH at the two tested periods in a dose dependent manner. Lipid peroxidation was significantly increased while GSH level and GPx, GST and SOD activities were significantly depleted in heart and testis of all treated rats. All treatments also induced a marked increase in serum TNF-α and decrease in serum IL-4, testosterone, FSH and LH levels in a dose dependent manner. The latex seemed to be more effective in deteriorating the testicular function and sex hormones’ levels while the ethanolic leaf extract produced more deleterious effects on oxidative stress and antioxidant defense system in both heart and testis. The normal histological architecture and integrity of the heart and testis were perturbed after treatments and the severity of lesions, which include odema, inflammatory cell infiltration, necrosis and degeneration, is dose and time dependent. In conclusion, the findings of this study indicated that C. procera latex and ethanolic extract of leaves could induce marked toxicity in heart and testis and these toxic effects may be more or less similar to those of abamectin. The cardiotoxicity and testicular toxicity may be mediated via stimulation of inflammation, increased oxidative stress and suppression of antioxidant defense system.
Collapse
Affiliation(s)
- Osama M Ahmed
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Beni Suef, Egypt
| | - Hanaa I Fahim
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Beni Suef, Egypt
| | - Magdy W Boules
- Rodents Division, Harmful Animals Department, Plant Protection Research Institute, Agriculture Research Center, Giza, Egypt
| | - Heba Y Ahmed
- Rodents Division, Harmful Animals Department, Plant Protection Research Institute, Agriculture Research Center, Giza, Egypt
| |
Collapse
|
26
|
Campos É, Freire C. Exposure to non-persistent pesticides and thyroid function: A systematic review of epidemiological evidence. Int J Hyg Environ Health 2016; 219:481-97. [PMID: 27265299 DOI: 10.1016/j.ijheh.2016.05.006] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 05/04/2016] [Accepted: 05/18/2016] [Indexed: 12/18/2022]
Abstract
Numerous pesticides are recognized for their endocrine-disrupting properties. Non-persistent pesticides such as organophosphates, dithiocarbamates and pyrethroids may interfere with thyroid function as suggested by animal studies. However, the influence of chronic exposure to these compounds on thyroidal functions in humans remains to be determined. The present study aimed to review epidemiological evidence for an association between exposure to non-persistent pesticides and circulating levels of thyroid hormones (thyroxin [T4] and triiodothyronine [T3]) and thyroid-stimulating hormone (TSH). A systematic review was conducted using MEDLINE, SCOPUS and Virtual Health Library (BVS) databases. Articles were limited to original studies and reports published in English, Portuguese or Spanish. Nineteen epidemiological studies were identified, 17 of which were cross-sectional, 14 were of occupationally exposed workers and 11 used exposure biomarkers. Fungicides and organophosphates (OP) insecticides were the most studied pesticides. Although methodological heterogeneity between studies was noted, particularly regarding study design, exposure assessment, and control of confounding, most of them showed associations with changes in T3 and T4, and/or TSH levels, while results from a few of these are consistent with experimental data supporting the findings that non-persistent pesticide exposure exerts hypothyroid-like effects. However, reporting quality was moderate to poor in 50% of the studies, particularly regarding method of selection of participants and discussion of external validity. Overall, current knowledge regarding the impact of non-persistent pesticides on human thyroid function is still limited. Given the widespread use of pesticides, future research should assess effects of exposure to currently-used pesticides in cohort studies combining comprehensive questionnaire-based assessment and biomarkers. Investigators need to pay particular attention to exposure during critical windows of brain development and exposure in agricultural populations.
Collapse
Affiliation(s)
- Élida Campos
- National School of Public Health, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil.
| | - Carmen Freire
- National School of Public Health, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil; Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Spain.
| |
Collapse
|
27
|
Jamal F, Haque QS, Singh S, Rastogi SK. RETRACTED: The influence of organophosphate and carbamate on sperm chromatin and reproductive hormones among pesticide sprayers. Toxicol Ind Health 2015; 32:1527-1536. [DOI: 10.1177/0748233714568175] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Farrukh Jamal
- Department of Biochemistry, Dr. Ram Manohar Lohia Avadh University, Faizabad, Uttar Pradesh, India
| | - Quazi S Haque
- Department of Biochemistry, Dr. Ram Manohar Lohia Avadh University, Faizabad, Uttar Pradesh, India
| | - Sangram Singh
- Department of Biochemistry, Dr. Ram Manohar Lohia Avadh University, Faizabad, Uttar Pradesh, India
| | - SK Rastogi
- Council of Scientific & Industrial Research, Indian Institute of Toxicological Research, Lucknow, Uttar Pradesh, India
| |
Collapse
|
28
|
Celik-Ozenci C, Tasatargil A. Role of poly(ADP-ribose) polymerases in male reproduction. SPERMATOGENESIS 2014; 3:e24194. [PMID: 23885303 PMCID: PMC3710221 DOI: 10.4161/spmg.24194] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 03/01/2013] [Accepted: 03/04/2013] [Indexed: 01/05/2023]
Abstract
Poly(ADP-ribose) polymerases (PARPs) are a family of enzymes involved in a wide variety of biological processes, including DNA repair and maintenance of genomic stability following genotoxic stress, and regulates the expression of various proteins at the transcriptional level as well as replication and differentiation. However, excessive activation of PARP has been shown to contribute to the pathogenesis of several diseases associated with oxidative stress (OS), which has been known to play a fundamental role in the etiology of male infertility. Based on the degree and type of the stress stimulus, PARP directs cells to specific fates (such as, DNA repair vs. cell death). A large volume of accumulated evidence indicates the presence of PARP and its homologs in testicular germ line cells and its activity may offer a key mechanism for keeping DNA integrity in spermatogenesis. On the other hand, a possible role of PARP overactivation in OS-induced male reproductive disorders and in human sperm is gaining significance in recent years. In this review, we focus on the findings about the importance of PARP-1 and PARP-2 in male reproduction and possible involvement of PARP overactivation in various clinical conditions associated with male infertility.
Collapse
Affiliation(s)
- Ciler Celik-Ozenci
- Akdeniz University Medical Faculty Department of Histology and Embryology; Antalya, Turkey
| | | |
Collapse
|
29
|
Manfo FPT, Nantia EA, Dechaud H, Tchana AN, Zabot MT, Pugeat M, Moundipa PF. Protective effect of Basella alba and Carpolobia alba extracts against maneb-induced male infertility. PHARMACEUTICAL BIOLOGY 2014; 52:97-104. [PMID: 24073857 DOI: 10.3109/13880209.2013.816860] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Male infertility is one of the leading causes of social frustration and marginalization, mainly in the developing world. It is attributed to many factors including exposure to agropesticides such as manganese ethylenebis (dithiocarbamate) (maneb), which is one of the most frequently used fungicides in Cameroon. Previous reports support efficiency of some medicinal plants commonly used in Cameroonian folk medicine for the treatment of this disorder. OBJECTIVE The present study was aimed at assessing the protective effect of extracts from selected plant species, namely Basella alba L. (Basellaceae) (MEBa) and Carpolobia alba G. Don (Polygalaceae) (AECa), in alleviating the maneb-induced impairment of male reproductive function in Wistar albino rats. MATERIALS AND METHODS The rats were treated with vehicle, plant extract (MEBa or AECa), maneb and maneb plus plant extract, respectively, and their fertility was assessed. Animals were thereafter sacrificed and organs (liver, kidneys and reproductive organs) were dissected out and weighed. Serum androgens together with alanine aminotransferase, liver glutathione and thiobarbituric acid reactive species (TBARS) were also measured. RESULTS AND DISCUSSION From this study, both plant extracts stimulated testosterone and improved fertility. Administration of MEBa plus maneb prevented fertility reduction by maneb and minimized the inhibitory effect of maneb on testosterone levels. AECa also improved fertility of the maneb-exposed rats, though without restoring testosterone levels, and other investigated parameters remained unaffected by different treatments. CONCLUSION These findings emphasized the beneficial effects of B. alba and C. alba extracts on male fertility, and suggest their protective effect against maneb-induced toxicity in male reproductive function.
Collapse
|
30
|
Celik-Ozenci C, Tasatargil A, Tekcan M, Sati L, Gungor E, Isbir M, Usta MF, Akar ME, Erler F. Effect of abamectin exposure on semen parameters indicative of reduced sperm maturity: a study on farmworkers in Antalya (Turkey). Andrologia 2012; 44:388-95. [PMID: 22530723 DOI: 10.1111/j.1439-0272.2012.01297.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2012] [Indexed: 11/28/2022] Open
Abstract
Environmental exposure to pesticides may cause serious health risks including fertility and reproductive function. The aim of this study was to highlight whether there is a relationship between exposure to abamectin and male fertility parameters of farmworkers. Twenty male farmworkers who were using abamectin and 20 men not exposed to pesticides were recruited as experimental and control groups, respectively. Semen analysis, molecular markers of sperm maturity and serum reproductive hormone levels were evaluated. In experimental group, high plasma abamectin levels were detected. These men have decreased sperm motility. Moreover, diminished molecular markers of sperm maturity, such as decreased hyaluronic acid (HA) binding of sperm, increased numbers of aniline blue positive sperm and increased percentage of creatine kinase (CK) positive sperm, were observed in abamectin-exposed men. Their serum testosterone, LH and FSH levels did not change significantly. We conclude that exposure to abamectin may impair male fertility by effecting semen quality.
Collapse
Affiliation(s)
- C Celik-Ozenci
- Department of Histology and Embryology, Akdeniz University, School of Medicine, Antalya, Turkey.
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Celik-Ozenci C, Tasatargil A, Tekcan M, Sati L, Gungor E, Isbir M, Demir R. Effects of abamectin exposure on male fertility in rats: Potential role of oxidative stress-mediated poly(ADP-ribose) polymerase (PARP) activation. Regul Toxicol Pharmacol 2011; 61:310-7. [DOI: 10.1016/j.yrtph.2011.09.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 09/05/2011] [Accepted: 09/06/2011] [Indexed: 10/17/2022]
|