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Gu S, Mo Z, Chen Z, Li X, Jiang Y, Liu C, Guo F, Li Y, Mao G, Huang X, Wang X. Assessment of Individual and Mixed Effects of Six Minerals on Thyroid Hormones in Chinese Pregnant Women. Nutrients 2024; 16:450. [PMID: 38337734 PMCID: PMC10857285 DOI: 10.3390/nu16030450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
The biosynthesis of thyroid hormones is essential for brain and neurological development. It requires iodine as a key component but is also influenced by other nutrients. Evidence for the combined nutrient status in relation to thyroid hormones during pregnancy is limited. We aimed to investigate the joint associations of iodine, selenium, zinc, calcium, magnesium and iron with maternal thyroid functions in 489 pregnant women from Hangzhou, China. Serum levels of six essential minerals and thyroid function parameters were measured during the first antenatal visit. Linear regression, quantile g-computation and Bayesian kernel machine regression were used to explore the individual and joint relationships between the six minerals and thyroid hormones. Linear regression analyses revealed that calcium was positively associated with free triiodothyronine (FT3). Zinc was positively associated with free thyroxine (FT4). Iodine was negatively associated with thyroid-stimulating hormone (TSH) and positively associated with FT3 and FT4. The quantile g-computation and BKMR models indicated that the joint nutrient concentration was negatively associated with TSH and positively associated with FT3 and FT4. Among the six minerals, iodine contributed most to thyroid function. The findings suggested that maintaining the appropriate concentration of minerals, either as individuals or a mixture, is important for thyroid health during pregnancy.
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Affiliation(s)
- Simeng Gu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
| | - Zhe Mo
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
| | - Zhijian Chen
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
| | - Xueqing Li
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
| | - Yujie Jiang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Chenyang Liu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
- School of Public Health, Zhejiang University, Hangzhou 310058, China
| | - Fanjia Guo
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
| | - Yahui Li
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
- School of Public Health, Hangzhou Medical College, Hangzhou 310053, China
| | - Guangming Mao
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
| | - Xuemin Huang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
| | - Xiaofeng Wang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (S.G.); (Z.M.); (Z.C.); (X.L.); (Y.J.); (C.L.); (F.G.); (Y.L.); (G.M.); (X.H.)
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Fu D, Chen S, Chen Y, Yi Z. Development of modified integrated water quality index to assess the surface water quality: a case study of Tuo River, China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:333. [PMID: 35389119 DOI: 10.1007/s10661-022-09998-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Water quality evaluation is an important step in water environment control and management. The water quality index (WQI) is considered to be an effective method for water quality evaluation. However, when constructing the WQI, the contribution of the lower threshold limits of water quality parameters to water quality has received little attention. The principle of the modified integrated water quality index (IWQI) is that the concentration of any water quality parameter below the lower threshold limits as well as above the upper threshold limits will lead to an increase in the overall index value. Based on the concentration of water quality parameters, the modified IWQI classified water quality into five categories, i.e., bad (> 8), poor (5-8), medium (2-5), good (1-2), and excellent (< 1). Tuo River plays a crucial role in potable and irrigation water sources of Sichuan Province, and the assessment result of modified IWQI reveals that 67.8% of samples were classified as "medium," 29% "poor," and 3.2% "bad." The high concentrations of N and P from agricultural activities and industrial wastewater are the main contributors to the deterioration of water quality in the Tuo River. Additionally, the Tuo River presents the characteristics of worse water quality in the midstream. The evaluation results of the modified IWQI are consistent with that of the conventional WQI, which proves the accuracy of the modified IWQI as a surface water quality evaluation method.
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Affiliation(s)
- Dong Fu
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621000, China
- School of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, 635000, China
| | - Shu Chen
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621000, China
| | - Yongcan Chen
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621000, China.
- State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, 100084, China.
| | - Zhenyan Yi
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621000, China
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Gogoi P, Kalita JC. Effects of butylparaben exposure on thyroid peroxidase (TPO) and type 1 iodothyronine deiodinase (D1) in female Wistar rats. Toxicology 2020; 443:152562. [DOI: 10.1016/j.tox.2020.152562] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/09/2020] [Accepted: 08/09/2020] [Indexed: 02/06/2023]
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Younes M, Aquilina G, Castle L, Engel KH, Fowler P, Fürst P, Gürtler R, Gundert-Remy U, Husøy T, Mennes W, Moldeus P, Oskarsson A, Shah R, Waalkens-Berendsen I, Wölfle D, Boon P, Crebelli R, Di Domenico A, Filipič M, Mortensen A, Van Loveren H, Woutersen R, Giarola A, Lodi F, Riolo F, Frutos Fernandez MJ. Re-evaluation of hydrochloric acid (E 507), potassium chloride (E 508), calcium chloride (E 509) and magnesium chloride (E 511) as food additives. EFSA J 2019; 17:e05751. [PMID: 32626371 PMCID: PMC7009240 DOI: 10.2903/j.efsa.2019.5751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The Panel on Food Additives and Flavourings added to Food (FAF) provided a scientific opinion re-evaluating the safety of chlorides (E 507-509, E 511) as food additives. Chlorides are authorised food additives in the EU in accordance with Annex II and III to Regulation (EC) No 1333/2008. In the non- brand-loyal scenario, mean exposure to chlorides (E 507-509, E 511) as food additives ranged from 2 mg/kg body weight (bw) per day in the elderly to 42 mg/kg bw per day in toddlers. The 95th percentile of exposure ranged from 5 mg/kg bw per day in the elderly to 71 mg/kg bw per day in toddlers. Chloride is an essential nutrient and after absorption is distributed to organs and tissues. The Panel considered chlorides to be of low acute oral toxicity and there is no concern with respect to genotoxicity and carcinogenicity. No effects were reported in developmental toxicity studies in rats following administration of magnesium chloride hexahydrate at 800 mg/kg bw per day. Some animal studies suggested a role of chloride in increasing blood pressure but based on the toxicological database available the Panel considered human data more appropriate to identify a level of chloride intake which does not raise a safety concern. The Panel identified a human dose of 40 mg chloride/kg bw per day as a reference value for the assessment. Mean levels of exposure in all age groups were below or at this reference value, which indicates no safety concern. In some age groups (toddlers, children and adolescents), the 95th percentile exposure estimates were slightly above this reference value. The Panel concluded that the exposure to chloride from hydrochloric acid and its potassium, calcium and magnesium salts (E 507, E 508, E 509 and E 511) does not raise a safety concern at the reported use and use levels.
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Ammar O, Houas Z, Mehdi M. The association between iron, calcium, and oxidative stress in seminal plasma and sperm quality. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:14097-14105. [PMID: 30852746 DOI: 10.1007/s11356-019-04575-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
The present study aimed to determine the level of iron and calcium in the seminal plasma of men with different fertility potentials and to examine its relationship with oxidative stress. Seventy-nine sub-fertile patients with asthenoteratozoospermia (AT), n 27; teratoleucozoospermia (TL), n 20; teratozoospermia (Terato), n 32; and 29 healthy donors were included. The ability of spermatozoa to produce reactive oxygen species (ROS) was evaluated by using nitroblue tetrazolium (NBT) staining. The lipid peroxidation end product, malondialdehyde (MDA), and the trace element levels (iron and calcium) were measured spectrophotometrically. Iron and calcium concentrations in seminal plasma of the patient groups were significantly more elevated than the normal group. Nevertheless, both calcium and iron showed strong negative correlations with the total sperm motility and normal sperm morphology, but only iron was positively and significantly associated with multiple anomalies index and seminal leucocyte concentration. On the other hand, the rates of MDA and ROS production in semen were significantly higher in the three abnormal groups than in controls. These two oxidative stress biomarkers were significantly associated with the percentage of atypical forms in semen. However, only semen ROS level was significantly associated with the decreased sperm motility and the sperm leucocytes concentration. Meanwhile, there are positive correlations between seminal iron and calcium content and the studied oxidative stress biomarkers. Oxidative stress and trace element excess are implicated in low sperm quality. Iron and calcium might be the mediators of the effects of oxidative damage and induces lipid peroxidation.
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Affiliation(s)
- Oumaima Ammar
- Laboratory of Histology Embryology and Cytogenetic (UR 12 ES 10), Faculty of Medicine, University of Monastir, Street Avicenne, 5019, Monastir, Tunisia.
- Laboratory of Cytogenetics and Reproductive Biology, Center of Maternity and Neonatology, Monastir, Fattouma Bourguiba University Teaching Hospital, Monastir, Tunisia.
| | - Zohra Houas
- Laboratory of Histology Embryology and Cytogenetic (UR 12 ES 10), Faculty of Medicine, University of Monastir, Street Avicenne, 5019, Monastir, Tunisia
| | - Meriem Mehdi
- Laboratory of Histology Embryology and Cytogenetic (UR 12 ES 10), Faculty of Medicine, University of Monastir, Street Avicenne, 5019, Monastir, Tunisia
- Laboratory of Cytogenetics and Reproductive Biology, Center of Maternity and Neonatology, Monastir, Fattouma Bourguiba University Teaching Hospital, Monastir, Tunisia
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Saha A, Mukherjee S, Bhattacharjee A, Sarkar D, Chakraborty A, Banerjee A, Chandra AK. Excess iodine-induced lymphocytic impairment in adult rats. Toxicol Mech Methods 2018; 29:110-118. [DOI: 10.1080/15376516.2018.1528647] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Adipa Saha
- Endocrinology and Reproductive Physiology Laboratory, Department of Physiology, University College of Science and Technology, University of Calcutta, Kolkata, India
| | | | | | - Deotima Sarkar
- Endocrinology and Reproductive Physiology Laboratory, Department of Physiology, University College of Science and Technology, University of Calcutta, Kolkata, India
| | - Arijit Chakraborty
- Endocrinology and Reproductive Physiology Laboratory, Department of Physiology, University College of Science and Technology, University of Calcutta, Kolkata, India
| | - Arnab Banerjee
- Department of Physiology, Serampore College, Hooghly, India
| | - Amar K. Chandra
- Endocrinology and Reproductive Physiology Laboratory, Department of Physiology, University College of Science and Technology, University of Calcutta, Kolkata, India
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Sengupta P, Nwagha U, Dutta S, Krajewska-Kulak E, Izuka E. Evidence for decreasing sperm count in African population from 1965 to 2015. Afr Health Sci 2017; 17:418-427. [PMID: 29062337 DOI: 10.4314/ahs.v17i2.16] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
PURPOSE This meta-analysis, following our previous reports those documented an overall 57% diminution in mean sperm concentration around the globe over past 35 years and 32.5% decline in past 50 years in European population, attempts to report the declining trend of sperm concentrations in African population between 1965 and 2015. METHODS In the course of retrieval of data following MOOSE guidelines and PRISMA checklist, we found a total of fourteen studies that have been conducted during that period on altering sperm concentration in the African male. RESULTS Following analysis of the data, a time-dependent decline of sperm concentration (r = -0.597, p = 0.02) and an overall 72.6% decrease in mean sperm concentration was noted in the past 50 years. The major matter of concern is the present mean concentration (20.38×106/ml) is very near to WHO cut-off value of 2010 of 15×106/ml. Several epidemic diseases, genital tract infection, pesticides and heavy metal toxicity, regular consumption of tobacco and alcohol are reported as predominant causative factors. CONCLUSION This comprehensive, evidence-based meta-analysis and systematic review concisely presents the evidence of decreased sperm concentration in the African male over past 50 years with possible causative factors to serve the scientific research zone related to male reproductive health.
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Affiliation(s)
- Pallav Sengupta
- Physiology, Lincoln University College, Petaling Jaya, Malaysia
- Integrated Medical Care, Medical University of Bialystok, Bialystok, Poland
| | - Uchenna Nwagha
- Department of of Physiology, Obstetrics and Gynecology, College of Medicine, University of Nigeria, Enugu Campus, Nigeria
| | - Sulagna Dutta
- Physiology, Lincoln University College, Petaling Jaya, Malaysia
| | | | - Emmanuel Izuka
- Department of Obstetrics and Gynecology, College of Medicine, University of Nigeria, Enugu Campus, Nigeria
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Sengupta P, Borges E, Dutta S, Krajewska-Kulak E. Decline in sperm count in European men during the past 50 years. Hum Exp Toxicol 2017; 37:247-255. [DOI: 10.1177/0960327117703690] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Purpose: To investigate whether the sperm concentration of European men is deteriorating over the past 50 years of time. Materials and Methods: We analysed the data published in English language articles in the past 50 years in altering sperm concentration in European men. Results: A time-dependent decline of sperm concentration ( r = −0.307, p = 0.02) in the last 50 years and an overall 32.5% decrease in mean sperm concentration was noted. Conclusion: This comprehensive, evidence-based meta-analysis concisely presents the evidence of decreased sperm concentration in European male over the past 50 years to serve the scientific research zone related to male reproductive health.
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Affiliation(s)
- P Sengupta
- Physiology Unit, Faculty of Medicine, Lincoln University College, Malaysia
- Integrated Medical Care, Medical University of Bialystok, Bialystok, Poland
| | - E Borges
- Fertility Medical Group, Avenida Brigadeiro Luiz Antônio, São Paulo, Brazil
| | - S Dutta
- Faculty of Science, Lincoln University College, Malaysia
| | - E Krajewska-Kulak
- Integrated Medical Care, Medical University of Bialystok, Bialystok, Poland
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Chaudhuri P, Bhattacharya K, Sengupta P. Co-education with Environmental Cues May Kindle Early Onset of Female Puberty. Int J Prev Med 2016; 7:29. [PMID: 26955459 PMCID: PMC4763468 DOI: 10.4103/2008-7802.175452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 05/14/2015] [Indexed: 11/17/2022] Open
Affiliation(s)
- Prasenjit Chaudhuri
- Department of Physiology, Sonarpur Mahavidyalaya, University of Calcutta, Kolkata, West Bengal, India
| | - Koushik Bhattacharya
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Kolkata, West Bengal, India
| | - Pallav Sengupta
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Kolkata, West Bengal, India
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Pongen I, Shumayla , Dhall M, Kapoor S. Occupation, Physical Fitness and Adiposity Markers among Security Guards and Students of Delhi University. Health (London) 2016. [DOI: 10.4236/health.2016.810101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Omole DO, Ndambuki JM, Balogun K. Consumption of sachet water in Nigeria: quality, public health and economic perspectives. AFRICAN JOURNAL OF SCIENCE TECHNOLOGY INNOVATION & DEVELOPMENT 2015. [DOI: 10.1080/20421338.2014.979654] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sengupta P, Krajewska-Kulak E. Is Mind-Body Relaxation By Yoga is Effective to Combat with Lifestyle Stress? Ann Med Health Sci Res 2013; 3:S61-2. [PMID: 24349859 PMCID: PMC3853618 DOI: 10.4103/2141-9248.121237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- P Sengupta
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Kolkata, West Bengal, India
| | - E Krajewska-Kulak
- Department of Integrated Medical Care, Medical University of Bialystok, Poland E-mail:
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Abstract
This review comprehensively summarizes the effects of more than 15 mostly used pesticides on male reproductive physiology, as recent experimental and epidemiological research have indicated their alarming impact on overall human health. Mechanisms have described that pesticide exposure damages spermatozoa, alter Sertoli or Leydig cell function, both in vitro and in vivo and thus affects semen quality. But, the literature suggests a need for more intricate research in those pesticides that are defined as mutagens or carcinogens and directly affect the hypothalamic–pituitary–gonadal axis. This literature review also proposes specific solutions to overcome these health effects.
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Affiliation(s)
- Pallav Sengupta
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Kolkata, West Bengal, India
| | - Rajdeb Banerjee
- Department of Physiology, University of Calcutta, Kolkata, West Bengal, India
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Sengupta P, Chaudhuri P, Bhattacharya K. Screening obesity by direct and derived anthropometric indices with evaluation of physical efficiency among female college students of kolkata. Ann Med Health Sci Res 2013; 3:517-22. [PMID: 24380001 PMCID: PMC3868116 DOI: 10.4103/2141-9248.122066] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The available information regarding the obesity pattern of the undergraduate female students of Kolkata is inadequate, though there are several reports which indicate the complications and/or awful consequences of obesity on female health particularly, during the reproductive years. AIM The present investigation has thus been carried out to report their present physiological status along with the prevalence of obesity, based on their body mass index (BMI), some direct and derived anthropometric indices, and physical fitness. SUBJECTS AND METHODS This small-scale cross-sectional study conducted in randomly selected 100 female students of different colleges of Kolkata with the age of 18-22 [mean age 20.4 (2.3)] years. Measurements of body composition included total 24 variables, with thirteen direct and eleven derived anthropometric variables; while physical efficiency parameters were physical fitness index, VO2max, energy expenditure and anaerobic power. The data of the experimental group were compared with those of the control group by t-test, using SPSS v.15.0 and MS-Excel v.2013. RESULTS Analysis of collected data showed majority of the students have normal range of BMI (67.95%), but, 21.95% of students found to be overweight and 3.84% are obese. They also showed higher fat mass [14.40 (4.11)], but, lower waist-to-hip ratio and conicity index. They were found to have poor to moderate physical fitness [57.60 (3.90)] and higher energy expenditure [5.61 (0.72)]. CONCLUSION The findings of the present obesity screening reports almost one of four female students (24 out of 100 participants) are overweight/obese, indicated higher body fat distribution and increased propensity of being obese with age. Thus, the overall data along with their low physical fitness points out to health risks among female undergraduates of Kolkata.
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Affiliation(s)
- P Sengupta
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Kolkata, West Bengal, India
| | - P Chaudhuri
- Sonarpur Mahavidyalaya, University of Calcutta, Kolkata, West Bengal, India
| | - K Bhattacharya
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Kolkata, West Bengal, India
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Dutta S, Joshi KR, Sengupta P, Bhattacharya K. Unilateral and bilateral cryptorchidism and its effect on the testicular morphology, histology, accessory sex organs, and sperm count in laboratory mice. J Hum Reprod Sci 2013; 6:106-10. [PMID: 24082651 PMCID: PMC3778599 DOI: 10.4103/0974-1208.117172] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 02/07/2013] [Accepted: 02/27/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: Experimental unilateral cryptorchidism (ULC) and bilateral cryptorchidism (BLC) are excellent methods to study undescended testis in relation to spermatogenesis against a temperature gradient. OBJECTIVES: In case of ULC, it is possible to compare the testicular functions between normal condition and cryptorchidism in the same animal, whereas BLC shows the necessity of testicular androgens for proper maintenance of reproductive structures and functions. MATERIALS AND METHODS: In the present study, experimental ULC and BLC was done on same-aged adult mature male mice and kept for 15 days and 30 days, respectively, to observe the changes due to the induced cryptorchidism on the different reproductive organs, viz., the testis and accessory sex organs along with epididymal sperm count. Reproductive tissues were collected from individual animals and histopathological studies of testis were done to investigate different cytological changes. RESULTS: The size of the testes and accessory sex organs were found to be significantly reduced in BLC mice, whereas only testicular weight reduction was observed in ULC mice. Histopathological studies showed degenerative changes throughout the seminiferous tubules. CONCLUSION: Thus, the present investigation showed compensatory androgen production in ULC mice, whereas absence of androgen mediated reproductive functions in BLC animals.
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Affiliation(s)
- Soumita Dutta
- Department of Physiology, Vijaygarh College, University of Calcutta, Kolkata, West Bengal, India
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Abstract
Now-a-days reproductive health problems along with infertility in male is very often observed. Various Assisted Reproductive Technologies have been introduced to solve the problem, but common people cannot afford the cost of such procedures. Various ayurvedic and other alternative medicines, along with regular yoga practice are proven to be not only effective to enhance the reproductive health in men to produce a successful pregnancy, but also to regulate sexual desire in men who practice celibacy. Yoga is reported to reduce stress and anxiety, improve autonomic functions by triggering neurohormonal mechanisms by the suppression of sympathetic activity, and even, today, several reports suggested regular yoga practice from childhood is beneficial for reproductive health. In this regard the present review is aimed to provide all the necessary information regarding the effectiveness of yoga practice to have a better reproductive health and to prevent infertility.
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Affiliation(s)
- Pallav Sengupta
- Department of Physiology, Vidyasagar College for Women, Kolkata, West Bengal, India
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Affiliation(s)
- Pallav Sengupta
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Kolkata, West Bengal, India
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Bhattacharya K. Ovulation and rate of implantation following unilateral ovariectomy in mice. J Hum Reprod Sci 2013; 6:45-8. [PMID: 23869151 PMCID: PMC3713577 DOI: 10.4103/0974-1208.112381] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 11/04/2012] [Accepted: 02/07/2013] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES: Removal of an ovary of any side of the body is called the unilateral ovariectomy (ULO). ULO models are used to analyze the existence of functional and physiological asymmetries between the ovaries, including the ovum implantation. MATERIALS AND METHODS: ULO was done in mice without any specification on their stages of the estrous cycle. The animals were mated between 3rd and 15th day after ULO to observe the consequence of ULO on ovulation and ovum implantation. RESULTS: Ovulation and number of implantation were decreased in proportion to single contralateral ovary if the animals were mated within 36 hrs of ULO. It resulted in increased weight of contralateral ovary due to hypertrophy, and also in compensatory ovulation, formation of corpus luteum (CL) that reached a peak after 14th and 15th day of ULO (sacrificed on 5th day of pregnancy i.e., 19th and 20th day of ULO) compared to animals undergone sham-surgery. Numbers of implantations were also increased progressively on the contralateral ovarian side and get to a peak after similar days of compensation. DISCUSSION AND CONCLUSION: Following ULO, the remaining ovary started to compensate within 5th to 6th day of ULO even during pregnancy. Ovarian histology also showed increased formation of CL which is a marker of rate of ovulation.
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Affiliation(s)
- Koushik Bhattacharya
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Kolkata, India
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Krajewska-Kulak E, Sengupta P. Thyroid function in male infertility. Front Endocrinol (Lausanne) 2013; 4:174. [PMID: 24312078 PMCID: PMC3826086 DOI: 10.3389/fendo.2013.00174] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 10/28/2013] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Pallav Sengupta
- Department of Physiology, Vidyasagar College for Women, University of Calcutta, Calcutta, West Bengal, India
- *Correspondence:
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Sengupta P. Environmental and occupational exposure of metals and their role in male reproductive functions. Drug Chem Toxicol 2012; 36:353-68. [DOI: 10.3109/01480545.2012.710631] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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