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Miao DZ, Liu C, Deng ZY, Zhang C, Guo ZY, Li WQ, Wang Y, Yang HM, Wang ZY. Characterization of reproductive hormones and related gene expression in the hypothalamus and pituitary gland in the egg-laying interval in White King pigeon. Poult Sci 2024; 103:103422. [PMID: 38228063 PMCID: PMC10823133 DOI: 10.1016/j.psj.2024.103422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/22/2023] [Accepted: 01/01/2024] [Indexed: 01/18/2024] Open
Abstract
The egg-laying interval (LI) directly reflects the laying performance of breeding pigeons, influenced by reproductive hormones. This study aimed to assess reproductive hormone levels in serum and the expression of related genes and their receptors in the hypothalamus and pituitary gland in 4 stages: first (LI1), third (LI3), fifth (LI5), and seventh (LI7) days. The results showed that serum gonadotropin-releasing hormone (GnRH) level decreased from LI1 to LI7 (P < 0.01) and peaked in LI1. The serum follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels stayed at high levels from LI1 to LI5. The FSH level decreased slightly from LI5 to LI7 (P > 0.05), but the LH level decreased rapidly (P < 0.01). The prolactin (PRL) levels significantly increased in LI5 (P < 0.01) compared with LI1 and then stayed at a high level. The GnRH1 expression in the hypothalamus had no significant change in LI (P > 0.05). However, the GnRHR first decreased from LI1 to LI3 (P < 0.05) and then increased. The FSH mRNA level in the pituitary gland decreased from LI1 to LI3 and slightly increased in LI5 (P > 0.05). The change pattern of FSHR was similar to that of FSH and peaked in LI5 (P < 0.05). The LH expression level was the highest in LI5 and significantly higher than that in LI3 and LI7 (P < 0.05). However, the LHR mRNA level decreased in LI (P < 0.05). The expression patterns of PRL and PRLR were similar; they were upregulated in LI and peaked in LI7 (P < 0.01). The expression pattern of GnRHR was similar to that of FSH, LH, and FSHR, suggesting the critical role of GnRHR in LI. Furthermore, the expression levels of these genes peaked in LI5, closely correlating with the maturation of the first largest follicle in pigeons. PRL-PRLR signaling inhibited GnRH activity to promote ovulation. This study provided a basis for further investigating the molecular mechanisms underlying the regulation of reproduction in pigeons.
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Affiliation(s)
- D Z Miao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - C Liu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - Z Y Deng
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - C Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - Z Y Guo
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - W Q Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - Y Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China.
| | - H M Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - Z Y Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
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Liu M, Chen R, Wang T, Ding Y, Zhang Y, Huang G, Huang J, Qu Q, Lv W, Guo S. Dietary Chinese herbal mixture supplementation improves production performance by regulating reproductive hormones, antioxidant capacity, immunity, and intestinal health of broiler breeders. Poult Sci 2024; 103:103201. [PMID: 37980727 PMCID: PMC10692728 DOI: 10.1016/j.psj.2023.103201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 11/21/2023] Open
Abstract
Chinese herbs have been used as feed additives and are commonly utilized in domestic intensive livestock farming. However, their impact on the production performance and intestinal health of broiler breeders has yet to be thoroughly explored. This study aimed to evaluate the effects of a Chinese herbal mixture (CHM) on the production performance of broiler breeders in terms of reproductive hormones, antioxidant capacity, immunity, and intestinal health of broiler breeders. A total of 336 thirty-wk-old hens were randomly allotted to 4 groups with 6 replicates of fourteen hens each, which fed a basal diet supplemented with 0 (CON), 500 (CHM500), 1,000 (CHM1000), and 1,500 (CHM1500) mg/kg CHM for 56 days, respectively. Our results showed that dietary supplementation with CHM1000 increased the laying rate and number of SYF and decreased the feed conversion ratio (P < 0.05). All CHM groups increased oviduct and ovarian indexes, serum E2 and T-AOC levels, and decreased serum TG and MDA levels compared with CON (P < 0.05). In comparison to the CON group, the CHM1000 and CHM1500 groups increased serum ALB, IgM, and IL-10 levels, whereas the CHM1000 group also increased serum TP and SOD levels, and the CHM1500 group increased serum P and decreased serum TNF-α (P < 0.05). The addition of CHM increased FSHR expressions in the ovary, Claudin-1 expressions in the jejunum, and SOD1 expressions in the liver and ovary, but decreased the mRNA expressions of INH in the ovary as well as IL-2 and IL-6 expressions in the jejunum (P < 0.05). Moreover, CHM500 and CHM1000 groups increased CAT, GPx, and HO-1 expression in the ovary, and SOD1 and GPx expression in the jejunum, while decreasing IL-17A expression in the jejunum (P < 0.05). In addition, CHM1000 and CHM1500 groups increased villus height, VCR, and the mRNA expressions of Nrf2, HO-1, Occludin, and MUC2 in the jejunum, and IL-10 expression in the ovary, while decreasing IL-2 and IL-17A expression in the ovary, in addition to increasing GPx, Nrf2, HO-1, NQO1, and IL-10 expression in the liver (P < 0.05). Supplementation with CHM1000 increased ESR-α, ESR-β, GnRH, Nrf2, and NQO1 expression in the ovary, but decreased IFN-γ expression in the ovary as well as crypt depth in the jejunum (P < 0.05). Supplementing CHM1500 increased NQO1 and ZO-1 expression in the jejunum and decreased IL-2 in the liver (P < 0.05). The high-throughput sequencing results showed that dietary CHM1000 supplementation altered the composition of the intestinal microbiota, as evidenced by the regulation of the genera Lactobacillus, Faecalibacterium, and Phascolarctobacterium. PICRUSt analysis revealed that metabolic pathways of bacterial chemotaxis, butanoate metabolism, and synthesis and degradation of ketone bodies were enriched in the CHM1000 group. Spearman's correlation analysis indicated that the differentiated genera were significantly associated with the production performance, serum hormone, and gut barrier-related genes. Taken together, supplementation of CHM, especially at 1,000 mg/kg, could improve production performance by regulating reproductive hormones, antioxidant capacity, immunity, and intestinal health of broiler breeders, and maybe provide insights into its application as a potential feed additive to promote the performance of broiler breeders.
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Affiliation(s)
- Mengjie Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Rong Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Tianze Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Yiqing Ding
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Yinwen Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Gengxiong Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Jieyi Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Qian Qu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Weijie Lv
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China
| | - Shining Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, PR China; Guangdong Technology Research Center for Traditional Chinese Veterinary Medicine and Natural Medicine, Guangzhou, PR China; International Institute of Traditional Chinese Veterinary Medicine, Guangzhou, PR China.
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George BT, Jhancy M, Dube R, Kar SS, Annamma LM. The Molecular Basis of Male Infertility in Obesity: A Literature Review. Int J Mol Sci 2023; 25:179. [PMID: 38203349 PMCID: PMC10779000 DOI: 10.3390/ijms25010179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
The rising incidence of obesity has coincided with rising levels of poor reproductive outcomes. The molecular basis for the association of infertility in obese males is now being explained through various mechanisms. Insulin resistance, hyperglycemia, and changes in serum and gonadal concentrations of adipokines, like leptin, adiponectin, resistin, and ghrelin have been implicated as causes of male infertility in obese males. The effects of obesity and hypogonadism form a vicious cycle whereby dysregulation of the hypothalamic-pituitary-testicular axis-due to the effect of the release of multiple mediators, thus decreasing GnRH release from the hypothalamus-causes decreases in LH and FSH levels. This leads to lower levels of testosterone, which further increases adiposity because of increased lipogenesis. Cytokines such as TNF-α and interleukins, sirtuins, and other inflammatory mediators like reactive oxygen species are known to affect fertility in obese male adults. There is evidence that parental obesity can be transferred through subsequent generations to offspring through epigenetic marks. Thus, negative expressions like obesity and infertility have been linked to epigenetic marks being altered in previous generations. The interesting aspect is that these epigenetic expressions can be reverted by removing the triggering factors. These positive modifications are also transmitted to subsequent generations.
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Affiliation(s)
- Biji Thomas George
- Department of Surgery, RAK College of Medical Sciences, RAKMHSU, Ras al Khaimah P.O. Box 11172, United Arab Emirates
| | - Malay Jhancy
- Department of Pediatrics, RAK College of Medical Sciences, RAKMHSU, Ras al Khaimah P.O. Box 11172, United Arab Emirates; (M.J.); (S.S.K.)
| | - Rajani Dube
- Department of Obstetrics and Gynecology, RAK College of Medical Sciences, RAKMHSU, Ras al Khaimah P.O. Box 11172, United Arab Emirates;
| | - Subhranshu Sekhar Kar
- Department of Pediatrics, RAK College of Medical Sciences, RAKMHSU, Ras al Khaimah P.O. Box 11172, United Arab Emirates; (M.J.); (S.S.K.)
| | - Lovely Muthiah Annamma
- Department of Clinical Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates;
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Zhou M, Tian T, Wu C. Mechanism Underlying the Regulation of Mucin Secretion in the Uterus during Pregnancy. Int J Mol Sci 2023; 24:15896. [PMID: 37958878 PMCID: PMC10647571 DOI: 10.3390/ijms242115896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/23/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023] Open
Abstract
The function of endometrial epithelial cells is to secrete various substances that are rich in growth factors and nutrients. These substances support both embryo implantation and its subsequent development into a fetus. A vast number of mucins are expressed in endometrial epithelial cells, and they play an important role in regulating the processes of embryo implantation, pregnancy, and parturition. Previous studies have shown that mucin forms a mucus layer covering endometrial epithelial cells, which helps resist damage from foreign bacteria and their toxins. Therefore, this article aims to investigate the location of mucins in the endometrium, the mechanism of mucin secretion by the endometrium, and the regulation of mucins in the uterine epithelium by reproductive hormones, as well as the role of mucins in the protection of the epithelium's structure. This research aims to provide a foundational understanding for future studies on the role and mechanism of endometrial mucins throughout the pregnancy cycle.
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Affiliation(s)
| | | | - Chenchen Wu
- College of Animal Veterinary Medicine, Northwest A&F University, Yangling 712100, China; (M.Z.); (T.T.)
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Jiang J, Zhuang Y, Si S, Cheng H, Alifu X, Mo M, Zhou H, Liu H, Yu Y. The Association of Reproductive Hormones During the Menstrual Period with Primary Dysmenorrhea. Int J Womens Health 2023; 15:1501-1514. [PMID: 37840555 PMCID: PMC10573379 DOI: 10.2147/ijwh.s421950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/30/2023] [Indexed: 10/17/2023] Open
Abstract
Objective This study aimed to investigate the association of reproductive hormones with primary dysmenorrhea in Chinese women. Methods A case-control study was conducted and patients with primary dysmenorrhea and non-dysmenorrhea participants were recruited. Oxytocin, PGF2α, vasopressin, estriol and estradiol were respectively measured in plasma collected three to five days after menstruation. Restricted cubic spline and multiple logistic regression models were adopted to analyze the association between hormones and primary dysmenorrhea. Results There were 604 participants enrolled in our study including 300 patients with primary dysmenorrhea. After adjustment for the potential confounders, oxytocin levels (Q3: OR (95% CI) = 0.50 (0.27~0.95) (p=0.035); Q4: 0.34 (0.17~0.66) (p=0.001)) and PGF2α levels (Q3: 0.45 (0.24~0.87) (p=0.017); Q4: 0.43 (0.22~0.84) (p=0.013)) were respectively associated with an decreased risk of primary dysmenorrhea, but estradiol (Q2: 2.18 (1.13~4.19) (p=0.020); Q3: 2.17 (1.12~4.19) (p=0.022)) and vasopressin (Q3: 2.88 (1.48~5.63) (p=0.002); Q4: 3.20 (1.65~6.22) (p<0.001)) with an increased risk of primary dysmenorrhea, respectively. Among patients with primary dysmenorrhea, the higher estriol level was associated with higher frequent dysmenorrhea (Q2: 3.12 (1.32~7.34) (p=0.009); Q3: 4.97 (2.08~11.85) (p<0.001)) and always dysmenorrhea (Q2: 2.51 (1.03~6.11) (p=0.041); Q3: 3.10 (1.25~7.73) (p=0.015)). Similarly, high estriol levels were associated with the higher degree of pain significantly only when hormone levels were at a high level (Q3: 2.06 (1.03~4.18) (p=0.043)). Conclusion Higher serum vasopressin and estradiol concentrations as well as lower oxytocin and PGF2α levels were associated with higher risk of primary dysmenorrhea. Estrogen showed a reverse U-shape association on the frequency and degree of pain among patients with primary dysmenorrhea.
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Affiliation(s)
- Junying Jiang
- Department of Women’s Health, Yiwu Maternity and Children Hospital, Yiwu, People’s Republic of China
| | - Yan Zhuang
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou City, People’s Republic of China
| | - Shuting Si
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou City, People’s Republic of China
| | - Haoyue Cheng
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou City, People’s Republic of China
| | - Xialidan Alifu
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou City, People’s Republic of China
| | - Minjia Mo
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou City, People’s Republic of China
| | - Haibo Zhou
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou City, People’s Republic of China
| | - Hui Liu
- Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou City, People’s Republic of China
| | - Yunxian Yu
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou City, People’s Republic of China
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Prakapenka D, Liang Z, Da Y. Genome-Wide Association Study of Age at First Calving in U.S. Holstein Cows. Int J Mol Sci 2023; 24:7109. [PMID: 37108271 PMCID: PMC10138929 DOI: 10.3390/ijms24087109] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
A genome-wide association study (GWAS) of age at first calving (AFC) using 813,114 first lactation Holstein cows and 75,524 SNPs identified 2063 additive effects and 29 dominance effects with p-values < 10-8. Three chromosomes had highly significant additive effects in the regions of 7.86-8.12 Mb of Chr15, 27.07-27.48 Mb and 31.25-32.11 Mb of Chr19, and 26.92-32.60 Mb of Chr23. Two of the genes in those regions were reproductive hormone genes with known biological functions that should be relevant to AFC, the sex hormone binding globulin (SHBG) gene, and the progesterone receptor (PGR) gene. The most significant dominance effects were near or in EIF4B and AAAS of Chr05 and AFF1 and KLHL8 of Chr06. All dominance effects were positive overdominance effects where the heterozygous genotype had an advantage, and the homozygous recessive genotype of each SNP had a very negative dominance value. Results from this study provided new evidence and understanding about the genetic variants and genome regions affecting AFC in U.S. Holstein cows.
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Affiliation(s)
| | | | - Yang Da
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
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Khan AS, Brown JL, Kumar V, Umapathy G, Baskaran N. Measures of Adrenal and Gonadal Hormones in Relation to Biological and Management Factors among Captive Red Pandas in Indian Zoos. Animals (Basel) 2023; 13:ani13081298. [PMID: 37106861 PMCID: PMC10135066 DOI: 10.3390/ani13081298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Animals in human care are affected by stressors that can ultimately reduce fitness. When reproduction is affected, endangered species conservation programs can be severely compromised. Thus, understanding factors related to stress and reproduction, and related hormones, is important to ensure captive breeding success. Red pandas (Ailurus fulgens) are endangered, and populations in the wild are threatened with extinction. A global captive breeding program has been launched to conserve the species with the goal of reintroduction. However, there is little information on how stressors impact physiological aspects of the species. This study measured fecal glucocorticoid (fGCM), progestagen (fPM), and androgen (fAM) metabolite concentrations in 12 female and 8 male red pandas at 3 zoos in India to determine predictors of adrenal and gonadal steroid activity, and the influence of fGCM on reproduction. Based on the generalized linear mixed model (GLMM), fGCM concentrations were positively correlated with the number of visitors, number of nests and enclosure areas, and negatively related to frequency of feedings, log density, and social time, while fPM concentrations were negatively associated with enclosure areas. A confounder for enclosure areas and number of nests was the fact that these spaces were relatively barren, with limited hiding spaces, compared to the smaller enclosures. By contrast, no significant relationships were found for fAM, perhaps due to the smaller sample size. A negative relationship between fGCM and fPM was observed, indicating increasing adrenal hormones may decrease reproductive function among female red pandas. Results suggest that zoo management should consider increasing feeding frequency, providing larger enclosures with more enrichment and more nests in larger spaces, and regulating visitor numbers to support good welfare and potentially improve reproductive fitness of red pandas in captivity.
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Affiliation(s)
- Aamer Sohel Khan
- Mammalian Biology Lab, Department of Zoology and Wildlife Biology, Anbanathpuram Vahaira Charity (A.V.C.) College (Autonomous), Mannampandal, Mayiladuthurai 609305, Tamil Nadu, India
| | - Janine L Brown
- Smithsonian National Zoo and Conservation Biology Institute, Center for Species Survival, Front Royal, VA 22630, USA
| | - Vinod Kumar
- Laboratory for the Conservation of Endangered Species, CSIR-Center for Cellular and Molecular Biology, Habsiguda, Hyderabad 500007, Telangana, India
| | - Govindhaswamy Umapathy
- Laboratory for the Conservation of Endangered Species, CSIR-Center for Cellular and Molecular Biology, Habsiguda, Hyderabad 500007, Telangana, India
| | - Nagarajan Baskaran
- Mammalian Biology Lab, Department of Zoology and Wildlife Biology, Anbanathpuram Vahaira Charity (A.V.C.) College (Autonomous), Mannampandal, Mayiladuthurai 609305, Tamil Nadu, India
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He W, Wang H, Tang C, Zhao Q, Zhang J. Dietary supplementation with astaxanthin alleviates ovarian aging in aged laying hens by enhancing antioxidant capacity and increasing reproductive hormones. Poult Sci 2022; 102:102258. [PMID: 36435161 PMCID: PMC9700305 DOI: 10.1016/j.psj.2022.102258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 11/24/2022] Open
Abstract
We investigated the effects of astaxanthin supplementation on the egg quality, antioxidant capacity, and ovarian aging of aged laying hens. Six groups of 68-wk-old Hy-line brown laying hens with six replications each, fifteen chickens in each replicate were fed for 12 wk. The control group was fed a basal diet, the positive control group was fed the basal diet supplemented with 100 mg/kg vitamin E, and the experimental groups were fed the basal diet supplemented with 15 mg/kg, 30 mg/kg, 45 mg/kg, or 60 mg/kg astaxanthin (Ax15, Ax30, Ax45, and Ax60, respectively). The results showed that astaxanthin accumulated in the egg yolks and improved egg yolk color (P < 0.01) and Haugh unit (P < 0.05). Compared with the control group, the experimental groups a higher number of follicles in the ovary and a lower rate of atresia (P < 0.01). Astaxanthin increased the expression of nuclear factor e2-related factor 2 (NRF2) in the ovary (P < 0.05), enhanced the antioxidant capacity of aged laying hens (P < 0.05), and reduced cellular apoptosis (P < 0.05). In addition, astaxanthin improved serum reproductive hormone levels (follicle-stimulating hormone, luteinizing hormone, and progesterone) (P < 0.05) with a maximum value observed in Ax60. However, astaxanthin had no effects on estrogen level (P > 0.05). The expression of FSHR and CYP11A1 increased in the follicular granulosa cells (P < 0.05). Therefore, astaxanthin prevented ovarian aging by improving the antioxidant capacity of laying hens and promoting the production of reproductive hormones. The declining reproductive performance of laying hens in the late laying period may be improved with astaxanthin supplementation.
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Affiliation(s)
- Weizhao He
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China,Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hao Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China,Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chaohua Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China,Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qingyu Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China,Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Junmin Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China,Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China,Corresponding author:
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Wu H, Yuan J, Yin H, Jing B, Sun C, Nguepi Tsopmejio IS, Jin Z, Song H. Flammulina velutipes stem regulates oxidative damage and synthesis of yolk precursors in aging laying hens by regulating the liver-blood-ovary axis. Poult Sci 2022; 102:102261. [PMID: 36410067 PMCID: PMC9678783 DOI: 10.1016/j.psj.2022.102261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022] Open
Abstract
Egg production levels in late laying hens are negatively correlated with increasing age. Decreased liver and ovarian function in aging laying hens is accompanied by decreased antioxidant capacity, reproductive hormone levels, and follicular development, resulting in decreased synthesis of yolk precursors. The golden needle mushroom (Flammulina velutipes) has been reported to exhibit anti-inflammatory, antioxidant, and hypolipidemic properties. We aimed to reveal the therapeutic effects of F. velutipes stem (FVS) on liver-blood-ovary axis and investigate the underlying mechanisms. A total of 360 sixty-seven-wk-old laying hens were randomized into 4 treatment groups: 1) basal maize-soybean meal diet (CON); 2) basal maize + 20 g/kg FVS (2% FVS); 3) basal maize + 40 g/kg FVS (4% FVS); and 4) basal maize + 60 g/kg FVS (6% FVS). FVS groups demonstrated significantly increased egg production and ovarian development compared with the CON group. The addition of FVS increased the levels of antioxidant enzymes (GSH-Px, T-SOD, and T-AOC) in the liver, serum, and ovaries and decreased malondialdehyde levels by regulating the expression of proteins related to the Keap1-Nrf2/ARE signaling pathway. Additionally, FVS significantly decreased ovarian apoptosis by regulating Bax, Bcl-2, and caspase3 mRNA and protein expression levels. FVS significantly increased the expression levels of estradiol, progesterone, luteinizing hormone, and follicle stimulating hormone and their respective receptors. With increased levels of estradiol transported to the liver through the bloodstream, targeted binding to estrogen receptor (ER)-α and ER-β led to significant increases in ApoVLDL II, ApoB, and VTG II mRNA expression associated with yolk precursor synthesis. FVS decreased the levels of triglyceride and total cholesterol and significantly increased the expression of lipid metabolism, and transport-related mRNAs (FAS, PPAR-a/γ, and MTTP) in the liver. Therefore, the dietary supplementation of FVS can maintain the productive performance of aging laying hens by alleviating the degree of oxidative stress and regulating the transport of functional substances along the liver-blood-ovary axis, thereby improving the synthesis of yolk precursors.
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Affiliation(s)
- Haoyuan Wu
- School of Life Science, Jilin Agricultural University, Changchun 130118, P. R. China
| | - Jing Yuan
- School of Life Science, Jilin Agricultural University, Changchun 130118, P. R. China
| | - Haixu Yin
- School of Life Science, Jilin Agricultural University, Changchun 130118, P. R. China
| | - Bo Jing
- School of Life Science, Jilin Agricultural University, Changchun 130118, P. R. China
| | - Chang Sun
- School of Life Science, Jilin Agricultural University, Changchun 130118, P. R. China
| | | | - Zhouyu Jin
- School of Life Science, Jilin Agricultural University, Changchun 130118, P. R. China
| | - Hui Song
- School of Life Science, Jilin Agricultural University, Changchun 130118, P. R. China,Engineering Research Center of the Chinenese Ministry of Education for Bioreactor and Pharmaceutical Development, Changchun, Jilin, 130118, P. R. China,Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Changchun, Jilin, 130118, P. R. China,Corresponding author:
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Xie T, Zhang S, Shen W, Zhang G, Guo R, Zhang W, Cao Y, Pan Q, Liu F, Sun Y, Liu S. Identification of Candidate Genes for Twinning Births in Dezhou Donkeys by Detecting Signatures of Selection in Genomic Data. Genes (Basel) 2022; 13. [PMID: 36292787 DOI: 10.3390/genes13101902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/14/2022] [Accepted: 10/16/2022] [Indexed: 11/16/2022] Open
Abstract
Twinning trait in donkeys is an important manifestation of high fecundity, but few reports are available elucidating its genetic mechanism. To explore the genetic mechanism underlying the twin colt trait in Dezhou donkeys, DNA from 21 female Dezhou donkeys that had birthed single or twin colts were collected for whole-genome resequencing. FST, θπ and Tajima’s D were used to detect the selective sweeps between single and twin colt fecundity in the Dezhou donkey groups. Another set of 20 female Dezhou donkeys with single or multiple follicles during estrus were selected to compare concentrations of reproductive hormone including follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2) and progesterone (P4). Four candidate genes including ENO2, PTPN11, SOD2 and CD44 were identified in the present study. The CD44 gene had the highest FST value, and ENO2, PTPN11 and SOD2 were screened by two joint analyses (FST and θπ, θπ and Tajima’s D). There was no significant difference in the LH, FSH and P4 levels between the two groups (p > 0.05); however, the serum E2 content in the multi-follicle group was significantly higher than that in the single-follicle group (p < 0.05). The identified candidate genes may provide new insights into the genetic mechanism of donkey prolificacy and may be useful targets for further research on high reproductive efficiency.
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Luo K, Meng X, Liu X, Nian M, Zhang Q, Tian Y, Chen D, Zhang J. Environmental Exposure to 6:2 Polyfluoroalkyl Phosphate Diester and Impaired Testicular Function in Men. Environ Sci Technol 2022; 56:8290-8298. [PMID: 35536153 DOI: 10.1021/acs.est.1c07184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
6:2 polyfluoroalkyl phosphate diester (6:2 diPAP) has been demonstrated to disrupt reproductive endocrine functions using experimental studies. However, evidence from humans is not available yet. This cross-sectional study aims to assess the relationship between 6:2 diPAP exposure and the testicular function among adult men. A total of 902 men seeking preconception care were included. Plasma 6:2 diPAP concentrations were determined, while the testicular function was assessed via semen quality and reproductive hormones in serum. The association was assessed by multiple linear regression. Stratified analyses by age and body mass index (BMI) were conducted to assess the potential effect modification by these two variables. Regression analyses revealed that 6:2 diPAP exposure was significantly inversely associated with androgens [i.e., total testosterone (TT) and free androgen index (FAI)], markers of testosterone production potential [i.e., TT/luteinizing hormone (LH) and FAI/LH], estradiol, and insulin-like factor 3, a biomarker of Leydig cell function. These associations were robust in sensitivity analyses. However, age and BMI did not modify these associations, and no association was observed between 6:2 diPAP and semen quality. Our study suggests that exposure to 6:2 diPAP may inhibit androgen synthesis and impair Leydig cell function in adult men.
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Affiliation(s)
- Kai Luo
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Xi Meng
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Xiaotu Liu
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China
| | - Min Nian
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Qianlong Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Ying Tian
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Da Chen
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai 200025, China
- Hainan Women and Children's Medical Center, Haikou, Hainan 570100, China
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12
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Liu H, Zheng H, Li Y, Tang Y, Peng H, Li Q, Zhuang J, Zhou Y, Zhou Y, Tu X, Zhang X. "Seminal testosterone", rising viewpoint of local spermatogenesis in nonobstructive azoospermia: One center long-term bidirectional cohort study. Front Endocrinol (Lausanne) 2022; 13:992556. [PMID: 36568123 PMCID: PMC9772016 DOI: 10.3389/fendo.2022.992556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 11/07/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Reproductive hormones are a traditional good method to evaluate spermatogenesis but might not accurately represent local spermatogenesis. To find a more accurate method, seminal reproductive hormones were studied. METHODS A bidirectional cohort study was performed. A total of 126 infertile men from 2018 to 2019 were retrospectively analyzed. They were divided into nonobstructive azoospermia (NOA), oligozoospermia (OLZ) and normal (NOR) groups. A prospective study was conducted on patients in the NOA and OLZ groups for 2 years. Microscopic testicular sperm extraction was performed for NOA patients, who were divided into a focal spermatogenesis group (FS) and an idiopathic azoospermia group (IA). Drug treatment was for OLZ patients, who were divided into a valid group (VA) and an invalid group (IN). The differences in sperm parameters and reproductive hormones were compared. ANOSIM analysis was used between and within groups. Pearson correlation analysis, CO inertia analysis and Proctor's analysis were for relationships. ROC curve for the specificity and sensitivity. Time series analysis was for the trends between hormones and time. RESULTS The b-FSH, b-LH, s-T and ΔT in the NOA group were significantly higher than those in the OLZ and NOR groups. However, the s-FSH, s-E2, s-P, ΔFSH, ΔLH, ΔP and ΔE2 were lower. Thirty-one NOA patients underwent MTSE, of whom 12 had sperm (FS) and 19 had no sperm (IA). The s-FSH and s-E2 of the FS group were higher than those of the IA group. Twenty-six OLZ patients completed 30 days of treatment, of which 11 had an improved sperm count (VA) and 15 had no (IN). The ΔT of the VA group was higher than that of the IN group. After follow-up for 2 years, 18 patients' results showed that b-FSH, b-LH and s-T were different over time, with delays of 19, 3 and -19 days. SC is closely related to pH, s-FSH, s-LH, s-E2, s-P, s-T, b-FSH, b-LH, ΔFSH, ΔLH, ΔP, ΔE2 and ΔT. There were complex common trends and relationships between different kinds of hormones. s-FSH, s-LH, s-E2, s-P, s-T, b-FSH and b-LH were useful to judge spermatogenesis, of which s-T, b-FSH and b-LH were more sensitive. If s-T, b-FSH and b-LH reached 64.4, 9.4 and 4.7, respectively, their prediction performance was the strongest. CONCLUSION Seminal testosterone is sensitive for judging local spermatogenesis in nonobstructive azoospermia patients, which may be the direction of local spermatogenesis in nonobstructive azoospermia. CLINICAL TRIAL REGISTRATION http://www.chictr.org.cn/index.aspx, identifier ChiCTR2200060463.
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Affiliation(s)
- Huang Liu
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
- *Correspondence: Xiang’an Tu, ; Xinzong Zhang, ; Huang Liu,
| | - Houbin Zheng
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
| | - Yuehua Li
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
| | - Yuqian Tang
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
| | - Hongbo Peng
- Department of Clinical Laboratory, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
| | - Qianyi Li
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
| | - Jiaming Zhuang
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
| | - Yingyi Zhou
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
| | - Yu Zhou
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
| | - Xiang’an Tu
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- *Correspondence: Xiang’an Tu, ; Xinzong Zhang, ; Huang Liu,
| | - Xinzong Zhang
- Department of Andrology, National Health Commission (NHC) Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, China
- *Correspondence: Xiang’an Tu, ; Xinzong Zhang, ; Huang Liu,
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Ljubicic ML, Madsen A, Upners EN, Fischer MB, Busch AS, Frederiksen H, Johannsen TH, Juul A, Hagen CP. Longitudinal evaluation of breast tissue in healthy infants: Prevalence and relation to reproductive hormones and growth factors. Front Endocrinol (Lausanne) 2022; 13:1048660. [PMID: 36531497 PMCID: PMC9751745 DOI: 10.3389/fendo.2022.1048660] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/18/2022] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION Breast tissue in infancy is a rather undescribed phenomenon. We aimed to describe the prevalence and progression of palpable breast tissue in healthy boys and girls aged 0-1 years and to evaluate clinical markers, individual serum hormone concentrations as well as combined hormone profiles as determinants of the persistence of breast tissue. METHODS In total, 233 term infants (119 boys, 114 girls) were included and followed from birth until 1 year of age in The COPENHAGEN Minipuberty Study (ClinicalTrials.gov #NTC02784184). Infants were followed up to six times with a clinical examination and serum sampling. Principal component analyses (PCAs) produced combined hormone profiles. RESULTS A total of 98% of all infants aged 0-1 year exhibited breast tissue at some point. 50% still had breast tissue present at 0.5-0.6 years in girls and 0.3-0.4 years in boys ('persistent'). At one year, more girls than boys had breast tissue present (p=0.010). Most clinical and hormonal markers did not differ in infants with/without persistent breast tissue. However, in those with persistent breast tissue, estradiol (first visit, girls, p=0.034), androstenedione, corticosterone, cortisol (first visit, boys, all p<0.050), length (first visit, boys, p=0.030), and testicular volume (0.3-0.4 years, p=0.040) were higher, while IGF-I (0.3-0.4, boys, p=0.033) was lower. In boys, a combined, PCA-derived hormone profile (first visit) was able to predict the persistence of breast tissue (area under the curve=83%) better than any single marker. DISCUSSION Palpable breast tissue in infancy is common in both sexes although it persists in significantly more girls than boys at one year of age. Data supports both the early origin of breast tissue (in utero- and early postnatal) as well as a role of endogenous hormone production in later development and maintenance.
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Affiliation(s)
- Marie Lindhardt Ljubicic
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
- *Correspondence: Marie Lindhardt Ljubicic,
| | - Andre Madsen
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Emmie N. Upners
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
| | - Margit Bistrup Fischer
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
| | - Alexander Siegfried Busch
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
- Department of General Pediatrics, University of Münster, Münster, Germany
| | - Hanne Frederiksen
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
| | - Trine Holm Johannsen
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
| | - Anders Juul
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Casper P. Hagen
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
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Liu J, Zhang D, Zhang Z, Chai W, Zhang J, Li M, Wang Y, Zhang S, Zhu M. Comparison of body size and reproductive hormones in high- and low-yielding Wulong geese. Poult Sci 2021; 101:101618. [PMID: 34986450 PMCID: PMC8743208 DOI: 10.1016/j.psj.2021.101618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 10/08/2021] [Accepted: 11/22/2021] [Indexed: 11/26/2022] Open
Abstract
Wulong geese are renowned for their egg-laying and reproductive abilities. This work investigated the potential of using body size traits in the selection and breeding of high-yielding Wulong geese. A total of forty 479day-old female geese (high-yielding geese, n = 20; low-yielding geese, n = 20) were selected to evaluate the relationship between body weight, body size trait indicators, serum reproductive hormones, and biochemical indicators. The results showed that serum estradiol (E2), glucose (GLU), and triglyceride (TG) concentrations, together with pubic spacing and abdominal circumference were significantly higher in high-yielding geese (P < 0.01), whereas the opposite was true for neck circumference, neck length, and tibial circumference. In addition, the serum testosterone (T) concentration and body weight were higher in high-yielding geese (P < 0.05). Neck circumference and neck length were negatively correlated with E2 and TG (P < 0.01); while pubic spacing and abdominal circumference were positively correlated with E2, GLU, and TG (P < 0.01), the highest correlation coefficient was 0.777 between TG and pubic spacing; T was also strongly associated with neck circumference (P < 0.01). In conclusion, high-yielding Wulong geese can be selected through neck circumference, neck length, pubic spacing, and abdominal circumference.
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Affiliation(s)
- Jingjing Liu
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Demin Zhang
- Shandong Animal Husbandry General Station, Jinan 250010, China
| | - Zhenwei Zhang
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Wenqiong Chai
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Jiqing Zhang
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Mengmeng Li
- College of Agronomy of Liaocheng University, Liaocheng 252000, China
| | - Yun Wang
- Liaocheng Academy of Agricultural Sciences, Liaocheng 252000, China
| | - Shuer Zhang
- Shandong Animal Husbandry General Station, Jinan 250010, China
| | - Mingxia Zhu
- College of Agronomy of Liaocheng University, Liaocheng 252000, China.
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Ma X, Pan W, Zhu Z, Ye X, Li C, Zhou J, Liu J. A case-control study of thallium exposure with the risk of premature ovarian insufficiency in women. Arch Environ Occup Health 2021; 77:468-477. [PMID: 34078236 DOI: 10.1080/19338244.2021.1931797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thallium exposure has been associated with female reproductive health, but little is known about its potential association with premature ovarian insufficiency (POI). In this study, a total of 169 patients with POI and 209 healthy women were recruited from Zhejiang province, China. Urinary thallium concentrations were significantly positively associated with the risk of POI [adjusted odds ratio (OR) = 1.63, 95% CI: 1.25-2.13, p < 0.001], geometric mean values of which were significantly higher in POI cases (0.213 μg/L, 0.302 μg/g for creatinine adjustment) than those of controls (0.153 μg/L, 0.233 μg/g for creatinine adjustment). Furthermore, the serum levels of follicle-stimulating hormone and luteinizing hormone were positively associated with urinary thallium concentrations, whereas anti-Mullerian hormone and estradiol were negatively correlated with thallium. To the best of our knowledge, this is the first study to provide evidence that thallium exposure at currently environmental levels is the potential risk factor for POI in women.
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Affiliation(s)
- Xiaochen Ma
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Wuye Pan
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Zheying Zhu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Xiaoqing Ye
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
- College of Medical Technology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chunming Li
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women'sHospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianhong Zhou
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women'sHospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
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Cui YM, Wang J, Zhang HJ, Qi GH, Wu SG. Effects of photoperiod on performance, ovarian morphology, reproductive hormone level, and hormone receptor mRNA expression in laying ducks. Poult Sci 2021; 100:100979. [PMID: 33677400 DOI: 10.1016/j.psj.2021.01.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 12/19/2020] [Accepted: 01/01/2021] [Indexed: 12/13/2022] Open
Abstract
We investigated the effect of photoperiod on performance, ovarian morphology, reproductive hormones levels, and their receptors mRNA expressions in laying ducks. After adaption, 300 252-day-old Jinding laying ducks were randomly allocated to 5 groups, receiving 12L:12D, 14L:10D, 16L:8D, 18L:6D, or 20L:4D, respectively. Each treatment had 6 replicates of 10 birds each. The feeding trial lasted 8 wk. Egg production, egg mass, and ADFI increased linearly and quadratically with increasing photoperiods (P < 0.05), and the higher values of them occurred in photoperiods ≥ 16 h, compared with 12L:12D (P > 0.05). Initial and bare stroma weight increased quadratically, while total large white follicle (LWF) number and weight increased linearly and quadratically, with increasing photoperiods (P < 0.05). The higher values of them occurred in 16L:8D and 18L:6D treatments as well as the higher total LWF weight also occurred in 20L:4D, compared with 12L:12D (P > 0.05). Besides, 16.93 and 16.93 h were the optimal photoperiods for bare stroma (follicles ≥ 2 mm in diameter removed) weight and total LWF weight, respectively, calculated from reliable regression equations (R2 ≥ 0.5071). Compared with 12L:12D, the higher levels of estradiol, progesterone, follicle-stimulating hormone (FSH) as well as the higher expressions of estrogen, luteinizing hormone (LH) and progesterone receptors were observed in ≥16 h photoperiods (P < 0.05), while the higher LH level and FSH receptor expression only occurred in 16L:8D and 18L:6D (P < 0.05). In the hypothalamus, higher mRNA expression of gonadotropin-releasing hormone occurred in 16L:8D and 18L:6D groups (P < 0.05). Meanwhile, gonadotropin-inhibitory hormone and prolactin increased in 20-hour photoperiod (P < 0.05), and the latter may be due to theup-regulation of vasoactive intestinal peptide expression (P < 0.05). To sum up, an appropriate photoperiod could improve the performance and reproductive organ and ovarian follicles development through reproductive hormones and their receptors, and 16.56 to 10.93 h is an adequate photoperiod for laying ducks.
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Cui Z, Mo M, Chen Q, Wang X, Yang H, Zhou N, Sun L, Liu J, Ao L, Cao J. Pornography Use Could Lead to Addiction and Was Associated With Reproductive Hormone Levels and Semen Quality: A Report From the MARHCS Study in China. Front Endocrinol (Lausanne) 2021; 12:736384. [PMID: 34566897 PMCID: PMC8461095 DOI: 10.3389/fendo.2021.736384] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/17/2021] [Indexed: 11/18/2022] Open
Abstract
This study aimed to investigate the situations of pornography use among male college students of China, to explore the addiction possibility for pornography use, and to study the associations between pornography use and reproductive hormone levels and semen quality. Five hundred sixty-eight participants met the inclusion criteria and finished all of the questionnaires and hormone level and semen parameter examinations. A majority of participants (except one) had pornography use experience, 94.2% participants started pornography use before college, and 95.9% participants reported they had masturbation experience when using pornography. Early contact to pornography, frequent pornography use, high amount of time spending on pornography use, and frequent masturbation during pornography use were correlated with addiction trends. Earlier pornography use was found to be associated with lower serum prolactin (PRL), follicle-stimulating hormone (FSH), and progesterone (Prog), as well as lower sperm concentration and total sperm count. Higher frequency of pornography use was associated with lower serum estrogen (E2). In conclusion, pornography use was common among male college students in China. Early contact, high frequent use, and high frequency of masturbation during pornography use could lead to addiction trends and aberrant reproductive hormone levels and semen quality.
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Affiliation(s)
- Zhihong Cui
- College of Pharmaceutical Sciences and Chinese Medicine, Southwest University, Chongqing, China
| | - Min Mo
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
| | - Qing Chen
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
| | - Xiaogang Wang
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
| | - Huan Yang
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
| | - Niya Zhou
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
| | - Lei Sun
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
| | - Jinyi Liu
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
| | - Lin Ao
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
| | - Jia Cao
- Institute of Toxicology, College of Preventive Medicine, Army Military Medical University, Chongqing, China
- *Correspondence: Jia Cao,
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Zhou SJ, Zhao MJ, Li C, Su X. The comparison of evaluative effectiveness between antral follicle count/age ratio and ovarian response prediction index for the ovarian reserve and response functions in infertile women. Medicine (Baltimore) 2020; 99:e21979. [PMID: 32899038 PMCID: PMC7478524 DOI: 10.1097/md.0000000000021979] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Aim of the present study was to explore the evaluative effectiveness of age, ovarian volume (OV), antral follicle count (AFC), serum follicle-stimulating hormone (FSH), anti-Müllerian hormone (AMH), AFC/Age ratio, AMH/Age ratio, FSH/luteinizing hormone (LH) ratio, and ovarian response prediction index (ORPI) to determine which could more advantageously assess ovarian reserve and response.This research enrolled 319 consecutive infertile women who had undergone in vitro fertilization-ET/intracytoplasmic sperm injection (IVF-ET/ICSI) treatments. Abovementioned variables were measured and calculated. Receiver operating characteristic (ROC) curve analysis was used to analyze the predictive accuracy of variables and to calculate cut-off values and corresponding sensitivity and specificity.Our study revealed that the significant variables for evaluating a decline in ovarian reserve include age, OV, FSH, AFC/Age ratio, AMH/Age ratio, and ORPI. Moreover, the area under the curve (AUC) of AFC/Age ratio was higher than other 5 variables (AUC = 1.000), and the cut-off value of AFC/Age ratio was 0.111 (sensitivity 100.00%, specificity 100.00%). The significant variables forecasting excessive ovarian response were age, AFC, AMH, FSH, AFC/Age ratio, AMH/Age ratio, FSH/LH ratio, and ORPI, and the significant variables forecasting poor ovarian response were AMH, LH, OV, AFC/Age ratio, AMH/Age ratio, and FSH/LH ratio. When ORPI was used to predict excessive response, the cut-off value of ORPI was 0.880 (sensitivity 84.72%, specificity 67.32%) and ORPI presented better effectiveness. When used to predict poor response, the evaluative effectiveness of 6 variables was almost similar, although the AUC of AFC/Age ratio presented the largest value.Regarding the infertile women, AFC/Age ratio performed better than did the other variables in evaluating ovarian reserve, and it offered excellent effectiveness in predicting poor ovarian response, however, ORPI presented better effectiveness in predicting excessive ovarian response.
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Affiliation(s)
- Shan-Jie Zhou
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Peking University International Hospital, Beijing
| | - Ming-Jia Zhao
- Department of Reproduction and Genetics, Tangshan Maternity and Child Healthcare Hospital, Tangshan, China
| | - Cui Li
- Department of Reproduction and Genetics, Tangshan Maternity and Child Healthcare Hospital, Tangshan, China
| | - Xing Su
- Department of Reproduction and Genetics, Tangshan Maternity and Child Healthcare Hospital, Tangshan, China
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Lv ZP, Yan SJ, Li G, Liu D, Guo YM. Genistein improves the reproductive performance and bone status of breeder hens during the late egg-laying period. Poult Sci 2020; 98:7022-7029. [PMID: 31309232 PMCID: PMC8913976 DOI: 10.3382/ps/pez367] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 07/11/2019] [Indexed: 01/08/2023] Open
Abstract
Genistein (GEN), a type of soy isoflavones, is similar to estrogen structurally and functionally. The effects of dietary gen on the reproductive performance and bone status of breeder hens were investigated. A total pf 720 laying broiler breeder (LBB) hens were randomly allocated into 3 groups with supplemental dietary GEN doses (0, 40, 400 mg/kg). Each treatment has 8 replicates of 30 birds. The results indicated that supplemental GEN significantly improved the egg production and eggshell strength of LBB hens. Dietary GEN was deposited into the egg yolk, which decreased malonaldehyde in the follicle and egg yolk. The levels of vitellogenin (VTG), progesterone, and follicle-stimulating hormone in the serum of GEN-treated groups were elevated compared with the control group. Furthermore, GEN treatment downregulated the mRNA expression of insulin-like growth factor binding protein in the fallopian tube, whereas 40 mg/kg GEN treatment upregulated estrogen receptor α expression. Both the mRNA expression of VTG-II in the liver and mRNA expression of amphiregulin in the fallopian tube were upregulated after 40 and 400 mg/kg GEN treatment. In the 400 mg/kg GEN-treated group, the levels of calcitonin and alkaline phosphatase in the serum were increased compared with the control group, which was consistent with the increased levels of calcium and phosphorus in the tibia. Supplemental GEN (400 mg/kg) improved the tibia strength of LBB hens, whereas 40 mg/kg GEN had better effects on laying performance. In summary, dietary GEN could improve the egg production and quality, as well as the bone status of LBB hens during the late egg-laying period.
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Affiliation(s)
- Z P Lv
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - S J Yan
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - G Li
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - D Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Y M Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, PR China
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20
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KOLANDAIVELOO V, KALAISELVAM R, FONG MW, MUSTAPA MS, SOUCE RM, SUGNASEELAN S, WATANABE M, LAU MM, SHARMA DS, SHARMA RS. Endoscopy gender determination and reproductive hormone profiles of Painted Terrapins (Batagur borneoensis) subjected to ex situ incubation. J Vet Med Sci 2020; 82:497-502. [PMID: 32101821 PMCID: PMC7192726 DOI: 10.1292/jvms.19-0477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 11/05/2019] [Indexed: 11/22/2022] Open
Abstract
Chelonian exhibit temperature dependent sex determination, and ex situ incubation of eggs in conservation hatcheries may render a gender bias. The gender of juvenile Painted terrapins (Batagur borneoensis) produced at a conservation hatchery in Malaysia was determined by endoscopy of the gonads. Circulating reproductive hormones (testosterone, progesterone and estradiol) were profiled for 31 juveniles and nine captive-reared non-breeding adult terrapins. Endoscopy revealed a gender bias of 96.8% (30/31) females. Testosterone levels in the juvenile females (2.49 ± 1.29) were significantly lower than that of the adult females (12.20 ± 4.29), and lower than values in the juvenile male (9.36) and adult males (27.60, 35.62). The progesterone levels in the juvenile females (107.12 ± 68.68) were significantly higher than that of the adult females (51.13 ± 24.67), but lower than values in the juvenile male (33.27) and adult males (3.43, 8.51). Estrogen levels were significantly lower in the juvenile females (1.57 ± 1.35) compared to the adult females (77.46 ± 53.45). Negative correlations were observed between levels of progesterone and testosterone, and progesterone and estrogen. A positive correlation was noted between estrogen and testosterone. The present study constitutes the first attempt to determine the gender and reproductive hormone profiles of juvenile Painted terrapins produced by ex situ incubation, and captive non-breeding adults. Endoscopy of the gonads is a useful techniques for gender determination among juvenile turtles, while the use of testosterone as a gender biomarker warrants further investigation.
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Affiliation(s)
- Vishwanee KOLANDAIVELOO
- Faculty of Veterinary Medicine, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor, Malaysia
| | - Ruviniyia KALAISELVAM
- Faculty of Veterinary Medicine, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor, Malaysia
| | - Michelle W.C. FONG
- Faculty of Veterinary Medicine, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor, Malaysia
| | - Mohd Syahir MUSTAPA
- Faculty of Veterinary Medicine, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor, Malaysia
| | - Richard M. SOUCE
- World Wild Fund for Nature (WWF), 1 Jalan PJS 5/28A, Pusat
Dagangan Petaling Jaya Selatan, 46150 Petaling Jaya, Selangor, Malaysia
| | - Sumita SUGNASEELAN
- Department of Animal Science, Faculty of Agriculture,
Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Malaika WATANABE
- Faculty of Veterinary Medicine, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor, Malaysia
| | - Min M. LAU
- World Wild Fund for Nature (WWF), 1 Jalan PJS 5/28A, Pusat
Dagangan Petaling Jaya Selatan, 46150 Petaling Jaya, Selangor, Malaysia
| | - Dionysius S.K. SHARMA
- Malaysian Wildlife Conservation Foundation, Level 22, Axiata
Tower 9, Jalan Stesen Sentral 5, 50470 Kuala Lumpur, Malaysia
| | - Reuben S.K. SHARMA
- Faculty of Veterinary Medicine, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor, Malaysia
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Hadinia SH, Carneiro PRO, Fitzsimmons CJ, Bédécarrats GY, Zuidhof MJ. Post-photostimulation energy intake accelerated pubertal development in broiler breeder pullets. Poult Sci 2020; 99:2215-2229. [PMID: 32241507 PMCID: PMC7587636 DOI: 10.1016/j.psj.2019.11.065] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 11/27/2019] [Accepted: 11/27/2019] [Indexed: 01/24/2023] Open
Abstract
The effect of ME intake (MEI) on the reproductive system was evaluated. Ross 308 broiler breeder pullets (n = 140) were assigned to 2 treatments from 22 to 26 wk of age: (1) Low-energy diet fed restricted (2,807 kcal/kg, low MEI) and (2) high-energy diet fed unrestricted (3,109 kcal/kg, high MEI). Daylength was increased from 8 to 14 h at 22 wk of age with a light intensity of 30 lux. Daily palpation was used to detect sexual maturity via the presence of a hard-shelled egg in the shell gland. Expression of gonadotropin releasing hormone-I (GnRH) and gonadotropin inhibitory hormone (GnIH) genes in the hypothalamus and GnRH receptor (GnRH-RI) and GnIH receptor (GnIH-R) genes in the anterior pituitary gland of each pullet was evaluated from 22 to 26 wk of age using quantitative real time-PCR. Blood samples were taken weekly and luteinizing hormone (LH), follicle stimulating-hormone (FSH), and 17-beta-estradiol (E2) determined using commercial ELISA kits. Carcass samples were used for determination of CP and fat content. Data were analyzed using the MIXED procedure in SAS, and differences were reported where P ≤ 0.05. High MEI treatment pullets had 2.3-fold higher GnRH and 1.8-fold higher GnRH-RI mRNA levels than low MEI pullets. MEI affected neither expression of GnIH and GnIH-R nor carcass protein content. For high MEI (489 kcal/D) and low MEI treatments (258 kcal/D), respectively, from 22 to 26 wk of age (P ≤ 0.05), LH concentration was 3.05 and 1.60 ng/mL; FSH concentration was 145 and 89.3 pg/mL; E2 concentration was 429 and 266 pg/mL, and carcass lipid was 13.9 and 10.3%. The onset of lay for pullets in the high MEI treatment advanced such that 100% had laid by 26 wk of age compared with 30% in the low MEI treatment. We concluded that higher MEI advanced the activation of the hypothalamic–pituitary–gonadal axis and also increased body lipid deposition, and moreover, stimulated reproductive hormone levels which overall accelerated puberty in broiler breeder pullets.
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Affiliation(s)
- S H Hadinia
- Department of Agricultural, Food and Nutritional Science, 410 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB, Canada, T6G 2P5
| | - P R O Carneiro
- Department of Agricultural, Food and Nutritional Science, 410 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB, Canada, T6G 2P5
| | - C J Fitzsimmons
- Department of Agricultural, Food and Nutritional Science, 410 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB, Canada, T6G 2P5; Agriculture and Agri-Food Canada, Edmonton, AB, Canada
| | - G Y Bédécarrats
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - M J Zuidhof
- Department of Agricultural, Food and Nutritional Science, 410 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB, Canada, T6G 2P5.
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22
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Basiru A, Akorede GJ, Soetan K, Olayemi FO. Adverse reproductive effects of ethanolic root extract of Waltheria indica in male Wistar rats. J Complement Integr Med 2019; 16:/j/jcim.ahead-of-print/jcim-2018-0178/jcim-2018-0178.xml. [PMID: 31433783 DOI: 10.1515/jcim-2018-0178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 01/17/2019] [Indexed: 11/15/2022]
Abstract
Background Numerous uses of Waltheria indica plant such as antitrypanosomal, antibacterial and antimalarial effects have been reported. It has however been reported that most plants with antibacterial and antiprotozoal effects have adverse effect on male reproduction. Hence, we evaluated the effect of Waltheria indica root on male reproductive parameters. Methods Twenty adult male Wistar rats were randomly divided into four groups (n=5); A-D. Group A served as control group while groups B, C and D were administered with 200, 400 and 800 mg/Kg body weight of crude ethanolic extract of Waltheria indica root. After 28 days of administration, the rats were sacrificed and sperm parameters, sperm morphology, serum reproductive hormones and lipids were determined. Results There was a significant reduction in sperm count and motility as well as significant increase in percentage abnormal sperm cell (p<0.001) at the 400 and 800 mg/kg BW. The serum levels of testosterone was also significantly reduced while total cholesterol increased significantly (p<0.05) at the highest dose. Conclusion Waltheria indica root has adverse effect on male reproduction through reduction in sperm parameters and male reproductive hormones.
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Affiliation(s)
- Afisu Basiru
- Department of Veterinary Physiology and Biochemistry, University of Ilorin, Ilorin, Kwara, Nigeria
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo, Nigeria
| | | | - Kehinde Soetan
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo, Nigeria
| | - Funsho O Olayemi
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo, Nigeria
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23
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Cui YM, Wang J, Hai-Jun Z, Feng J, Wu SG, Qi GH. Effect of photoperiod on ovarian morphology, reproductive hormone secretion, and hormone receptor mRNA expression in layer ducks during the pullet phase. Poult Sci 2019; 98:2439-2447. [PMID: 30668853 DOI: 10.3382/ps/pey601] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 12/21/2018] [Indexed: 02/04/2023] Open
Abstract
We evaluated the effect of photoperiod on ovarian morphology, reproductive hormone secretion, and hormone receptor mRNA expression in layer ducks during the pullet phase. A total of 480 71-d-old Jinding layer ducks were randomly divided into 5 groups that received 6L (hours of light):18D (hours of darkness), 8L:16D, 10L:14D, 12L:12D, or 14L:10D, respectively. Each group had 6 replicates with 16 birds each. The photoperiod feeding trial lasted 80 d until 150 d of age. The age at first egg (AFE), the total number, and weight of eggs increased linearly with increasing photoperiods (P < 0.05); lower values of AFE occurred with photoperiods ≥8 h, whereas a higher total number and weight of eggs occurred with photoperiods ≥10 h, compared with 6L:18D (P > 0.05). Oviduct weight, ovary percentage, and initial and bare stroma (weight and percentage) increased quadratically with increasing photoperiods (P < 0.05), and 10.24, 10.01, and 10.10 h were the optimal photoperiods for oviduct weight, bare stroma (follicles ≥2 mm in diameter removed) weight, and bare stroma percentage, respectively, as calculated from reliable regression equations (R2 ≥ 0.5791). Compared with 6L:18D, 10L:14D had a higher total large white follicle weight, small yellow follicle number, and weight (P < 0.05). In addition, higher serum levels of follicle-stimulating hormone, luteinizing hormone, and progesterone were observed with ≥10-h photoperiods (P < 0.05), as were levels of hormone receptor mRNA expression in ovarian follicles (P < 0.05), with the highest values for both measures at 10L:14D. In the hypothalamus, mRNA expression of gonadotropin-releasing hormone increased in ≥8-h photoperiods, with the highest value at 10L:14D. In contrast, gonadotropin-inhibitory hormone increased in photoperiods ≥12 h (P < 0.05). In conclusion, an appropriate photoperiod led to early sexual maturity and improved the development of reproductive organs and ovarian follicles through effects on reproductive hormones and their receptors; 10 to 10.24 h is an adequate photoperiod for layer ducks during the pullet phase.
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Affiliation(s)
- Yao-Ming Cui
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Wang
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhang Hai-Jun
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jia Feng
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shu-Geng Wu
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Guang-Hai Qi
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Liu H, Zhang C, Liu Y, Duan H. Total flavonoid contents in bamboo diets and reproductive hormones in captive pandas: exploring the potential effects on the female giant panda ( Ailuropoda melanoleuca). Conserv Physiol 2019; 7:coy068. [PMID: 30997106 PMCID: PMC6457431 DOI: 10.1093/conphys/coy068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 10/29/2018] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Phytoestrogens have been shown to affect the reproductive hormone levels in both humans and animals. As the main category of phytoestrogens, total flavonoids have a particularly important impact on female animals. To investigate the potential relationship between the total flavonoids in bamboo and the reproductive hormones in female giant pandas, urinary samples and dietary bamboo samples were collected from three main breeding locations (Beijing, Shaanxi and Sichuan). The chemical constituents of the total flavonoids in the bamboo were analysed and quantified using high-performance liquid chromatography coupled with a diode array detector (HPLC-DAD). Estradiol (E2), progestin (P), testosterone (T), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and prolactin (PRL) were measured via radioimmunoassay (RIA). The results revealed that the total flavonoids in the bamboo from Sichuan were significantly higher than those in the bamboo from Beijing and Shaanxi, and the concentration in bamboo from Shaanxi was higher than that from Beijing (P < 0.05). The urinary E2, P, T, FSH and LH levels in pandas from Beijing were significantly lower than those in pandas from Sichuan and Shaanxi (P < 0.05). The concentrations of six reproductive hormones were positively associated with the total flavonoid contents in bamboo. In addition, the birth rate of pandas in Sichuan was significantly higher than the birth rate of pandas in Beijing and Shaanxi (P < 0.05). Thus, the flavonoids of bamboo may be related to reproduction and giant pandas might retain a sensitive adaptation to phytoestrogens from bamboo. The total flavonoids of bamboo may play a distinct role in the reproductive success of giant pandas.
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Affiliation(s)
- He Liu
- Beijing Key Laboratory of Captive Wildlife Technology, Beijing Zoo, No.137 Xi Zhi Men Wai street, Xicheng district, Beijing, China
| | - Chenglin Zhang
- Beijing Key Laboratory of Captive Wildlife Technology, Beijing Zoo, No.137 Xi Zhi Men Wai street, Xicheng district, Beijing, China
| | - Yan Liu
- Beijing Key Laboratory of Captive Wildlife Technology, Beijing Zoo, No.137 Xi Zhi Men Wai street, Xicheng district, Beijing, China
| | - Hejun Duan
- Beijing Municipal Key Laboratory of Food Poisoning Diagnosis Traceability Technology, Beijing Center for Disease Control and Prevention, No.13 He Ping Li Middle street,Dongcheng district, Beijing, China
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Guo J, Huang Y, Lei X, Zhang H, Xiao B, Han Z, Liang C, Yang W. Reproductive Systemic Toxicity and Mechanism of Glucosides of Tripterygium wilfordii Hook. F. (GTW). Ann Clin Lab Sci 2019; 49:36-49. [PMID: 30814076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND To study the mechanism of reproductive systemic toxicity of Tripterygium wilfordii on SD rats. METHODS The SD rats were randomly divided into groups and allocated three different treatments: control, 37.8 mg/kg Tripterygium glycosides, and 94.5 mg/kg Tripterygium glycosides, with each treatment applied for different lengths of time to 20 animals. Each group received treatment by intragastric administration once per day for 90 days. The estrus cycle was continuously observed throughout treatment. Animals were killed at each time point and analyses of sex hormones, sexual organ weights and coefficients, semen, pathology, and immunohistochemistry were conducted. RESULTS The metestrus phase of the rats administered the low-dose and high-dose treatments was significantly decreased. The uterus organ-body coefficients of female rats were significantly increased, whereas the testis and epididymis organ-body and organ-brain coefficients in male rats were significantly decreased by the high-dose and low-dose treatments at different time points. An increase in immature sperm and sperm abnormality rate was observed at different times in the low-dose and high-dose groups. Pathological changes were clear in the testis, epididymis, ovary, and uterus. The levels of multiple hormones were significantly decreased. The hypothalamus estrogen receptor alpha (ER-α) receptor expression in female rats was also significantly decreased. The androgen receptor (AR) expression in the hypothalamus and the testis and epididymis was significantly decreased at different times by the high-dose treatment. CONCLUSION Tripterygium glycosides affected the estrus cycle in female rats and caused damage to the uterus; in male rats, the testicles and sperm were damaged. The mechanism of reproductive toxicity occurred through the secretion of multiple hormones.
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Affiliation(s)
- Jianmin Guo
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, China
- Division of Life Science, Center for Cancer Research, State Key Lab for Molecular Neural Science, Hong Kong University of Science and Technology, Hong Kong, China
- Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangzhou, China
| | - Yuankeng Huang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, China
- Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangzhou, China
| | - Xialing Lei
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, China
- Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangzhou, China
| | - Hong Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, China
- Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangzhou, China
| | - Baiquan Xiao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, China
- Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangzhou, China
| | - Zhong Han
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, China
- Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangzhou, China
| | - Chun Liang
- Division of Life Science, Center for Cancer Research, State Key Lab for Molecular Neural Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Wei Yang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, China
- Division of Life Science, Center for Cancer Research, State Key Lab for Molecular Neural Science, Hong Kong University of Science and Technology, Hong Kong, China
- Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangzhou, China
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26
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Yang YH, Zhao MJ, Zhou SJ, Shang XJ, Xiong CL, Lu WH, Liang XW, Gu YQ. [Levels of serum reproductive hormones and metabolic syndrome in adult males]. Zhonghua Nan Ke Xue 2018; 24:788-794. [PMID: 32212456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To investigate the prevalence of metabolic syndrome (MS) and its relationship with reproductive hormones in adult males in China. METHODS Using the cluster and stratified sampling methods, we conducted an investigation among 3 600 adult males aged over 20 years in Hebei, Shaanxi and Jiangsu provinces. We obtained their reproductive hormone levels, biochemical indicators and basic body indexes and compared them between the two groups of subjects. RESULTS A total of 3 332 valid serum samples were collected, which revealed a prevalence rate of MS of 38.5% in the adult males. Compared with the non-MS subjects, the MS males showed a significantly higher free testosterone index (FTI, 0.39 ± 0.15 vs 0.45 ± 0.19, P < 0.01) but lower levels of total testosterone (TT, [16.35 ± 4.78] vs [13.37 ± 4.23] nmo/L, P < 0.01) and sex hormone-binding globulin (SHBG, [47.13 ± 20.50] vs [33.32 ± 14.91] nmol/L, P < 0.01) and testosterone secretion index (TSI, 3.64 ± 1.92 vs 3.14 ± 1.80, P < 0.01). There were no statistically significant differences between the two groups in the levels of calculated free testosterone (cFT) and LH (P > 0.05). Spearman rank correlation analysis showed that the levels of serum TT and SHBG were correlated with all the indicators of MS (P < 0.01) except systolic blood pressure (SBP), while that of cFT only with the levels of high-density lipoprotein (HDL), fasting blood glucose (FBG) and SBP (P < 0.01). After adjusted for age, smoking, drinking, and body mass index (BMI), all the MS indicators were significantly associated with the SHBG level (P < 0.01), but not high blood pressure with the serum TT level (P > 0.05). After adjusted for the age, smoking, drinking, BMI and TT, the serum SHBG level was the main independent risk factor for MS (OR: 0.965, 95% CI: 0.958-0.973, P < 0.01). CONCLUSIONS The level of serum cFT is not correlated with while that of SHBG is the main independent risk factor for metabolic syndrome in adult males in China.
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Affiliation(s)
- Yi-Hong Yang
- Center of Reproduction / Key Laboratory of the Ministry of Education for Birth Defects and Related Diseases of Women and Children, Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ming-Jia Zhao
- Department of Reproduction and Genetics, Tangshan Maternity and Child Health Care Hospital, Tangshan, Hebei 063000, China
| | - Shan-Jie Zhou
- Center of Reproduction, Peking University International Hospital, Beijing 102206, China
| | - Xue-Jun Shang
- Department of Andrology, Nanjing General Hospital of Nanjing Military Region, Nanjing, Jiangsu 210002, China
| | - Chen-Liang Xiong
- Research Institute of Family Planning, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Wen-Hong Lu
- National Key Laboratory of Male Reproductive Health / National Research Institute for Family Planning, Health and Family Planning Commission of China, Beijing 100081, China
| | - Xiao-Wei Liang
- National Key Laboratory of Male Reproductive Health / National Research Institute for Family Planning, Health and Family Planning Commission of China, Beijing 100081, China
| | - Yi-Qun Gu
- National Key Laboratory of Male Reproductive Health / National Research Institute for Family Planning, Health and Family Planning Commission of China, Beijing 100081, China
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Liu J, Guo M, Hu X, Weng X, Tian Y, Xu K, Heng D, Liu W, Ding Y, Yang Y, Zhang C. Effects of Thyroid Dysfunction on Reproductive Hormones in Female Rats. CHINESE J PHYSIOL 2018; 61:152-162. [PMID: 29742817 DOI: 10.4077/cjp.2018.bag551] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2018] [Indexed: 11/24/2022] Open
Abstract
Thyroid hormones (THs) play a critical role in the development of ovarian cells. Although the
effects of THs on female reproduction are of great interest, the mechanism remains unclear. We
investigated the effects of TH dysregulation on reproductive hormones in rats. Propylthiouracil (PTU)
and L-thyroxine were administered to rats to induce hypo- and hyperthyroidism, respectively, and the
reproductive hormone profiles were analyzed by radioimmunoassay (RIA). Ovarian histology was
evaluated with hematoxylin and eosin (H&E) staining, and gene protein level or mRNA content was
analyzed by western blotting or reverse transcription polymerase chain reaction (RT-PCR). The serum
levels of gonadotropin releasing hormone (GnRH) and follicle stimulating hormone (FSH) in both rat
models were significantly decreased on day 21, although there were no significant changes at earlier
time points. There were no significant differences in luteinizing hormone (LH) or progesterone (P4)
levels between the treatment and the control groups. Both PTU and L-thyroxine treatments downregulated
estradiol (E2) concentrations; however, the serum testosterone (T) level was increased only in
hypothyroid rats at day 21. In addition, the expression levels of FSH receptor, cholesterol side-chain
cleavage enzyme (P450scc), and steroidogenic acute regulatory protein (StAR) were decreased in both
rat models. Moreover, the onset of puberty was significantly delayed in the hypothyroid group. These
results provide evidence that TH dysregulation alters reproductive hormone profiles, and that the
initiation of the estrous cycle is postponed in hypothyroidism.
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Affiliation(s)
- Juan Liu
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy
of Sciences, Beijing 100101, Peoples’ Republic of China
| | - Meng Guo
- Department of Laboratory Animal Science, School of Basic Medical Science, Capital Medical University, Beijing 100069, Peoples' Republic of China
| | - Xusong Hu
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China
| | - Xuechun Weng
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China
| | - Ye Tian
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China
| | - Kaili Xu
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China
| | - Dai Heng
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China
| | - Wenbo Liu
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China
| | - Yu Ding
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China
| | - Yanzhou Yang
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical
University, Ningxia 750004, Peoples’ Republic of China
| | - Cheng Zhang
- College of Life Science, Capital Normal University, Beijing 100048, Peoples’ Republic of China
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Olayaki LA, Alagbonsi IA, Abdulrahim AH, Adeyemi WJ, Bakare M, Omeiza N. Melatonin prevents and ameliorates lead-induced gonadotoxicity through antioxidative and hormonal mechanisms. Toxicol Ind Health 2018; 34:596-608. [PMID: 29759042 DOI: 10.1177/0748233718773508] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We investigated the effects of melatonin on sperm parameters and some biochemical markers in lead-exposed male Wistar rats. Lead (50 mg/kg bw/day) and/or melatonin (4 mg/kg or 10 mg/kg bw/day) was administered for 4 weeks, while 2-week lead exposure was preceded by or followed by 2-week treatment with both doses of melatonin in other groups. Lead reduced glutathione, catalase, adjusted testes weight, semen parameters but did not change malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase, and total antioxidant capacity. Though independent of prolactin, lead-induced gonadotoxicity was both centrally and peripherally mediated, as it reduced gonadotropin-releasing hormone and testosterone levels, while gonadotropin levels did not change significantly probably due to negative feedback by elevated estradiol. However, pre-, simultaneous, or posttreatment of lead-exposed rats with melatonin reduced MDA, SOD, and estradiol but dose-dependently increased other parameters. Conclusively, lead causes male gonadotoxicity through oxidative stress and endocrine mechanisms, and these could be dose-dependently prevented and ameliorated by melatonin.
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Affiliation(s)
- Luqman Aribidesi Olayaki
- 1 Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria
| | - Isiaka Abdullateef Alagbonsi
- 2 Department of Physiology, School of Medicine and Pharmacy, University of Rwanda College of Medicine and Health Sciences, Huye, Butare, Republic of Rwanda
| | - Amin Halimat Abdulrahim
- 3 Department of Medical Biochemistry, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria
| | - Wale Johnson Adeyemi
- 1 Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria
| | - Muftiat Bakare
- 1 Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria
| | - Noah Omeiza
- 1 Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria
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Chen J, Pan QS, Wang YM, Zhou XX. [Dynamic changes of reproductive hormone levels and related factors in old and middleaged men in health examination]. Zhonghua Nan Ke Xue 2017; 23:131-136. [PMID: 29658250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate the dynamic changes of serum reproductive hormone levels in old and middleaged males in health examination and their correlation with age and lipid profile. METHODS This study included 4 333 men in health examination from January 2011 to December 2014. The men were aged from 40 to 85 years old and divided into seven fiveyearspan age groups. We determined the levels of serum testosterone (T), luteinizing hormone (LH), folliclestimulating hormone (FSH), estradiol (E2), progesterone (P), prolactin (PRL), total cholesterol (TC), triglyceride (TG), lowdensity lipoprotein cholesterol (LDLC), highdensity lipoprotein cholesterol (HDLC), and the testosterone secretion index (TSI = T/LH). We analyzed the obtained data using SPSS Pram, KruskalWallis H test, MannWhitney U test, exponential regression, and Spearman correlation analysis. RESULTS Statistically significant differences were found in LH, FSH, E2 and TSI among the seven age groups (P< 0.05). The levels of serum LH, FSH and E2 were significantly higher (P< 0.05) while TSI remarkably lower (P< 0.05) in the ≥70 yr group than in the other six groups. The serum T and E2 levels and TSI were markedly lower in the 40-44, 45-49 and 50-54 yr groups in 2014 than in the other three years (P< 0.05), and so were the levels of serum T and TSI in the 55-59 yr group (P< 0.05). The levels of serum LH, FSH and E2 were correlated positively while those of P, PRL and TSI negatively with age. The serum T level was correlated positively with HDLC but negatively with TC, TG and LDLC. The levels of serum LH, FSH and E2 showed a yearly average increase of 1.9%, 2.7% and 0.5%, respectively, while TSI an annual mean decline of 2.0% in the 40-85 yr group. CONCLUSIONS LH, FSH and E2 were increased while TSI decreased with age in the >40 years old males. T and TSI were reduced in the 40-59 years old men from 2011 to 2014, and so was E2 in the 40-54 yr group. Lowlevel testosterone is closely related to dyslipidemia.
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Affiliation(s)
- Jian Chen
- Center of Medical Laboratory, The First Hospital Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Qin-Shi Pan
- Center of Medical Laboratory, The First Hospital Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yu-Min Wang
- Center of Medical Laboratory, The First Hospital Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Xing-Xing Zhou
- Center of Medical Laboratory, The First Hospital Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
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Yang CJ, Wang SS. [Analysis of serum reproductive hormone levels in men with hyperlipemia in the urban area of Shijiazhuang]. Zhonghua Nan Ke Xue 2016; 22:974-978. [PMID: 29281203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the aging-related changes of reproductive hormones in hyperlipemia men in the urban area of Shijiazhuang and the relationship between the levels of reproductive hormones and that of blood lipid. METHODS We enrolled 297 males aged 25-65 years in this study, determined the levels of serum total testosterone (TT), luteinizing hormone (LH), follicle-stimulating hormone (FSH), estradiol (E2), prolactin (PRL), triglyeride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C) and fasting blood glucose (FBG), and compared the parameters among different age groups. RESULTS The level of serum TT was decreased while that of FSH increased significantly in the 36-45 years group and that of LH elevated only in the 56-65 years old hyperlipemia males(P<0.05). No statistically significant changes were observed in PRL and E2 among different age groups. Spearman correlation analysis manifested that age was correlated negatively with TT, FSH, and LH (r=-0.266, 0.514, and 0.350, P<0.05), TT weakly negatively with TC and TG (r=-0.215 and -0.286, P<0.05) but weakly positively with HDL-C (r=0.281, P<0.01), and FSH and LH weakly positively with TG (r=0.282 and 0.343, P<0.05). Regression analysis showed age to be an independent influencing factor of TT, FSH and LH, while HDL-C to be that of TT. CONCLUSIONS The levels of serum TT and FSH gradually change with aging and low TT and high FSH and LH are closely related to hyperlipemia in adult men.
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Affiliation(s)
- Chao-Ju Yang
- Department of Clinical Laboratory, Hebei General Hospital, Shijiazhuang, Hebei 050051, China
| | - Shu-Song Wang
- Hebei Research Institute of Family Planning Science and Technology / Key Laboratory of Family Planning and Healthy Birth, National Commission of Health and Family Planning, Shijiazhuang, Hebei 050071, China
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Abstract
Background Postmenopausal osteoporosis is the most common bone metabolic disease associated with low bone mineral density (BMD) and osteopathic fragility fractures, which can lead to significant morbidity. The objective of this study was to investigate the relationship between serum follicle-stimulating hormone (FSH), luteinizing hormone (LH), and estradiol (E2) levels and bone mineral density (BMD) across the stages of menopause in Mongolian women. Methods Two hundred sixty participants aged 50.1±4.4 years were enrolled in the study. Blood samples were obtained from each participant and analyzed using ELISA. Data were first stratified and analyzed by bone mineral density status (osteoporotic, osteopenic, and normal) and then by menopause status. Between group differences were analyzed using t-tests, and correlations were assessed using the Spearman rank order test, with Bonferonni correction. The data were analyzed using Statistical Package Statistical Software version 20.0 (SPSS Inc., Chicago, IL). Significance was set at p<0.05. Results The mean menopausal age was 48.4±3.4, which is comparable to the Mongolian population mean menopausal age. The mean serum estradiol level in the normal BMD group was 18.3±13.1 pg/ml and 15.8±10.7 pg/ml in the osteoporotic group. The mean serum FSH in the normal BMD group was 54.5±44.1 pg/ml and 81.3±34.2 pg/ml in the osteoporotic group. The mean serum LH level in the normal BMD group was 53.1±41.2 and 75.1±26.1 pg/ml in the osteoporotic group. The mean T and Z score were lower in the osteoporotic group. FSH and LH levels significantly differed across menopause stages in that those who were post-menopausal had higher levels compared to those who were pre- or peri-menopausal. Both hormones, FSH and LH, showed weak negative correlations with BMD level, but not E2. There were significant negative correlations between FSH and Speed of Sound (SOS) (r=-0.16; p<0.01), and between osteoporosis with age (r=-0.30, p<0.05) and number of childbirths (r=-0.14 p<0.05). Discussion Osteoporosis is a significant problem with associations to hormone levels in post-menopausal women. In our study, mean serum estradiol levels decreased with age, and the mean FSH and LH levels were higher in women of later menopausal stage. Further study is warranted to investigate the bone related studies to establish better statistical references among Mongolian women.
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Affiliation(s)
- Unentsatsral Lkhagvasuren
- Department of Obstetrics and Gynecology, Health Sciences, University of Mongolia, Ulaanbaatar, Mongolia
| | - Sarantuya Jav
- Department of Molecular Biology and Genetics, Health Sciences, University of Mongolia, Ulaanbaatar, Mongolia
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Chen Q, Yang H, Zhou N, Sun L, Bao H, Tan L, Chen H, Ling X, Zhang G, Huang L, Li L, Ma M, Yang H, Wang X, Zou P, Peng K, Liu T, Cui Z, Ao L, Roenneberg T, Zhou Z, Cao J. Inverse U-shaped Association between Sleep Duration and Semen Quality: Longitudinal Observational Study (MARHCS) in Chongqing, China. Sleep 2016; 39:79-86. [PMID: 26350472 DOI: 10.5665/sleep.5322] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 07/18/2015] [Indexed: 01/02/2023] Open
Abstract
STUDY OBJECTIVES To investigate the association between sleep duration and semen parameters as well as reproductive hormone levels. METHODS We designed a cohort of male college students in Chongqing, China. A total of 796 subjects were recruited in 2013 and 656 (82.4%) were followed up in 2014. Each time, semen and peripheral blood samples were collected for semen quality and reproductive hormone measurement. Sleep duration was estimated by revised Munich Chronotype Questionnaire. In 2014, sleep quality was also measured by Pittsburgh Sleep Quality Index (PSQI). RESULTS There was a substantial inverse U-shaped association between sleep duration and two semen parameters (semen volume and total sperm number), with 7.0-7.5 h/day of sleep showing highest parameters. Either longer or shorter sleep was associated with decreased semen parameters in a dose-response manner (P = 0.002 and 0.001, respectively). Sleeping > 9.0 h was associated with a 21.5% (95% confidence interval 9.2, 32.2) reduction in semen volume and 39.4% (23.3, 52.1) reduction in total sperm number; sleeping ≤ 6.5 h was associated with 4.6% (-10.5, 22.3) and 25.7% (-1.2, 60.1) reduction. Increase of the two parameters was found in those who changed sleep duration toward 7.0-7.5 h/day from 2013 to 2014. The U-shaped association was independent from PSQI and was replicated in another dataset of 1,346 males. No association found between sleep duration and reproductive hormone. CONCLUSIONS Either restricted or excessive sleep may impair semen quality. Further research is needed to validate this finding.
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Affiliation(s)
- Qing Chen
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Huan Yang
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Niya Zhou
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Lei Sun
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Huaqiong Bao
- Chongqing Institute of Science and Technology for Population and Family Planning, Chongqing, China
| | - Lu Tan
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Hongqiang Chen
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Xi Ling
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Guowei Zhang
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Linping Huang
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Lianbing Li
- Chongqing Institute of Science and Technology for Population and Family Planning, Chongqing, China
| | - Mingfu Ma
- Chongqing Institute of Science and Technology for Population and Family Planning, Chongqing, China
| | - Hao Yang
- Chongqing Institute of Science and Technology for Population and Family Planning, Chongqing, China
| | - Xiaogang Wang
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Peng Zou
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Kaige Peng
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Taixiu Liu
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Zhihong Cui
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Lin Ao
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Till Roenneberg
- Centre for Chronobiology, Institute for Medical Psychology, University of Munich, Munich, Germany
| | - Ziyuan Zhou
- Department of Environmental Health, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Jia Cao
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
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Graham KM, Mylniczenko ND, Burns CM, Bettinger TL, Wheaton CJ. Examining factors that may influence accurate measurement of testosterone in sea turtles. J Vet Diagn Invest 2015; 28:12-9. [PMID: 26699527 DOI: 10.1177/1040638715618989] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Differences in reported testosterone concentrations in male sea turtle blood samples are common in the veterinary literature, but may be accounted for by differences in sample handling and processing prior to assay. Therefore, our study was performed to determine best practices for testosterone analysis in male sea turtles (Caretta caretta and Chelonia mydas). Blood samples were collected into 5 collection tube types, and assay validation and measured testosterone concentrations were compared across different sample storage (fresh, refrigerated 1 week, or frozen), extraction (unextracted or ether-extracted), and processing treatment (untreated, homogenized, or dissociation reagent) conditions. Ether-extracted and dissociation reagent-treated samples validated in all conditions tested and are recommended for use, as unextracted samples validated only if assayed fresh. Dissociation reagent treatment was simpler to perform than ether extraction and resulted in total testosterone concentrations ~2.7-3.5 times greater than free testosterone measured in ether-extracted samples. Sample homogenization did not affect measured testosterone concentrations, and could be used to increase volume in gelled samples. An annual seasonal testosterone increase was observed in both species when ether extraction or dissociation reagent treatment was used. Annual deslorelin implant treatments in a Chelonia mydas male resulted in suppression of seasonal testosterone following the fourth treatment. Seasonal testosterone patterns resumed following discontinuation of deslorelin. Comparison of in-house and commercially available enzyme immunoassay kits revealed similar patterns of seasonal testosterone increases and deslorelin-induced suppression. Our study highlights the importance of methodological validation and provides laboratorians with best practices for testosterone enzyme immunoassay in sea turtles.
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Affiliation(s)
- Katherine M Graham
- Animals, Science and Environment, Disney's Animal Kingdom, Lake Buena Vista, FL
| | | | - Charlene M Burns
- Animals, Science and Environment, Disney's Animal Kingdom, Lake Buena Vista, FL
| | - Tammie L Bettinger
- Animals, Science and Environment, Disney's Animal Kingdom, Lake Buena Vista, FL
| | - Catharine J Wheaton
- Animals, Science and Environment, Disney's Animal Kingdom, Lake Buena Vista, FL
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Chang WH, Li SS, Wu MH, Pan HA, Lee CC. Phthalates might interfere with testicular function by reducing testosterone and insulin-like factor 3 levels. Hum Reprod 2015; 30:2658-70. [PMID: 26385792 DOI: 10.1093/humrep/dev225] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Accepted: 08/24/2015] [Indexed: 01/10/2023] Open
Abstract
STUDY QUESTION Do phthalates create a male reproductive hormone imbalance by down-regulating the secretion of testosterone and insulin-like factor 3 (INSL3)? SUMMARY ANSWER Our study suggests that exposure to phthalates is related to a reduction in the secretion of testosterone and INSL3 in adult males. WHAT IS KNOWN ALREADY There is evidence that exposure to phthalates, an abundant group of industrial plasticizers, negatively affects testosterone biosynthesis, but little is known about the mechanism in men. The hypothesis that exposure to phthalates reduces the levels of testosterone and INSL3, a marker of Leydig cell function, is underexplored. STUDY DESIGN, SIZE, DURATION This case-control study of 176 men ran from 2010 to 2012. Infertile men were recruited through infertility clinics in Taiwan, fertile men were recruited from childbirth preparation classes and all were categorized based on the World Health Organization definition of infertility and by the diagnoses of obstetricians. PARTICIPANTS/MATERIALS, SETTING, METHODS Urinary concentrations of 11 phthalate metabolites were measured, along with serum levels of FSH, LH, total testosterone (TT), estradiol, sex hormone-binding globulin and Inhibin B. Androgen status indices including free testosterone (fT) and the free androgen index (FAI) were calculated. The circulating INSL3 level was evaluated using a radioimmunoassay. Non-parametric analyses, trend tests and linear regression models were used. MAIN RESULTS AND THE ROLE OF CHANCE Urinary mono-n-butyl phthalate (MnBP), mono-(2-ethylhexyl) phthalate (MEHP) and mono-2-ethyl-5-carboxypentyl phthalate were significantly higher in infertile than in fertile men. Serum Inhibin B, the Inhibin B : FSH ratio, the TT : LH ratio and INSL3 were significantly lower in infertile men. In multiple regression models controlled for potential confounders, there is an inverse association between urinary levels of mono-methyl phthalate (MMP), mono-iso-butyl phthalate (MiBP), MEHP, MEHP% and serum TT (P = 0.001, 0.007, 0.042 and 0.012, respectively). The inverse associations were also found between urinary levels of MiBP, monobenzyl phthalate (MBzP), MEHP, MEHP% and serum fT (P = 0.028, 0.017, 0.045 and 0.027, respectively); between urinary levels of MMP, MEHP, MEHP% and the TT : LH ratio (P = 0.004, 0.029 and 0.039, respectively); between urinary levels of MMP, MiBP, MnBP, MBzP, MEHP and the FAI (P = 0.002, 0.008, 0.037, 0.028, 0.042 and 0.016, respectively). Urinary MBzP and MEHP% were negatively associated with a decrease in serum INSL3 (P = 0.049 and <0.001). We also observed a strong inverse relationship between MEHP% quartiles and serum TT, fT, the TT : LH ratio and INSL3 (Ptrend = 0.003, 0.080, 0.002 and 0.012, respectively). Serum INSL3, TT, fT and the TT : LH ratio were lower for men in the highest MEHP% quartile than in the reference group (P = 0.007, 0.002, 0.090 and 0.001, respectively). LIMITATIONS, REASONS FOR CAUTION A potential limitation is using a single urine and blood sample to predict urinary phthalate metabolites and reproductive hormone status over long periods. However, there is evidence that a single measure provides a reliable result in population studies. WIDER IMPLICATIONS OF THE FINDINGS Non-occupational exposure to phthalates, including di-2-ethylhexyl phthalate, might lead to adverse effects on testicular/Leydig cell function and be of concern owing to the ubiquitous multisource exposure to phthalates among the general population. Although our findings are in agreement with recent experimental data, more studies are required to draw firm conclusions on the relation of INSL3 to phthalate exposure or testicular/Leydig cell function.
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Affiliation(s)
- Wei-Hsiang Chang
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, 138 Sheng-Li Road, Tainan 70403, Taiwan
| | - Sih-Syuan Li
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, 138 Sheng-Li Road, Tainan 70403, Taiwan
| | - Meng-Hsing Wu
- Department of Obstetrics and Gynecology, Hospital of National Cheng Kung University, 138 Sheng-Li Road, Tainan 70403, Taiwan
| | - Hsien-An Pan
- An-An Women and Children Clinic, 286 Kaiyuan Road, Tainan 70403, Taiwan
| | - Ching-Chang Lee
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, 138 Sheng-Li Road, Tainan 70403, Taiwan Research Center of Environmental Trace Toxic Substance, National Cheng Kung University, 138 Sheng-Li Road, Tainan 70403, Taiwan
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Li Y, Gao R, Liu X, Chen X, Liao X, Geng Y, Ding Y, Wang Y, He J. Folate Deficiency Could Restrain Decidual Angiogenesis in Pregnant Mice. Nutrients 2015; 7:6425-45. [PMID: 26247969 PMCID: PMC4555123 DOI: 10.3390/nu7085284] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 03/27/2015] [Accepted: 07/20/2015] [Indexed: 11/24/2022] Open
Abstract
The mechanism of birth defects induced by folate deficiency was focused on mainly in fetal development. Little is known about the effect of folate deficiency on the maternal uterus, especially on decidual angiogenesis after implantation which establishes vessel networks to support embryo development. The aim of this study was to investigate the effects of folate deficiency on decidual angiogenesis. Serum folate levels were measured by electrochemiluminescence. The status of decidual angiogenesis was examined by cluster designation 34 (CD34) immunohistochemistry and the expression of angiogenic factors, including vascular endothelial growth factor A (VEGFA), placental growth factor (PLGF), and VEGF receptor 2 (VEGFR2) were also tested. Serum levels of homocysteine (Hcy), follicle stimulating hormone (FSH), luteinizing hormone (LH), prolactin (PRL), progesterone (P4), and estradiol (E2) were detected by Enzyme-linked immunosorbent assay. The folate-deficient mice had a lower folate level and a higher Hcy level. Folate deficiency restrained decidual angiogenesis with significant abnormalities in vascular density and the enlargement and elongation of the vascular sinus. It also showed a reduction in the expressions of VEGFA, VEGFR2, and PLGF. In addition, the serum levels of P4, E2, LH, and PRL were reduced in folate-deficient mice, and the expression of progesterone receptor (PR) and estrogen receptor α (ERα) were abnormal. These results indicated that folate deficiency could impaire decidual angiogenesis and it may be related to the vasculotoxic properties of Hcy and the imbalance of the reproductive hormone.
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Affiliation(s)
- Yanli Li
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Xinggui Liao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
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Deng Q, Odhiambo JF, Farooq U, Lam T, Dunn SM, Gänzle MG, Ametaj BN. Intravaginally administered lactic acid bacteria expedited uterine involution and modulated hormonal profiles of transition dairy cows. J Dairy Sci 2015; 98:6018-28. [PMID: 26188583 DOI: 10.3168/jds.2014-8559] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 05/28/2015] [Indexed: 12/14/2022]
Abstract
The objective of this investigation was to evaluate whether intravaginal infusion of lactic acid bacteria (LAB) around parturition could expedite involution rate of the uterus and improve reproductive performance of postpartum dairy cows. One hundred pregnant Holstein dairy cows were assigned to 1 of 3 experimental groups: (1) 1 dose of LAB in wk -2 and -1 and 1 dose of carrier in wk 1 relative to the expected day of parturition (TRT1); (2) 1 dose of LAB in wk -2, -1, and 1 (TRT2); and (3) 1 dose of carrier in wk -2, -1, and 1 (CTR). The LAB treatment was a lyophilized mixture of Lactobacillus sakei FUA3089, Pediococcus acidilactici FUA3138, and Pediococcus acidilactici FUA3140 with a cell count of 10(8) to 10(9) cfu/dose. Uterine involution and ovarian activity was evaluated by transrectal ultrasonography weekly from d 7 to 49 postpartum. Blood samples were collected from a subset of cows to quantify prostaglandin (PG) F2α metabolite (PGFM), PGE2, and progesterone. Cows treated with LAB had smaller cross-sectional areas of gravid horn and uterine body on d 14 postpartum. Cows in TRT2 resumed ovarian cyclicity earlier, as indicated by increased concentrations of serum progesterone. Cows in TRT1 had fewer days open than those in the CTR (110 vs. 150 d), whereas cows in TRT2 and CTR did not differ in days open. In addition, both TRT1 and TRT2 increased the concentrations of PGFM at calving week, and cows in TRT2 also had greater concentrations of PGE2 on d 14 and d 21 postpartum relative to CTR. Overall, cows treated intravaginally with LAB had smaller gravid horn and uterine body on d 14 postpartum than those in the CTR group. Treatment with LAB also increased concentrations of serum PGFM (3,533±328pg/mL in TRT1, 4,470±372pg/mL in TRT2, and 2,000±328pg/mL in CTR on d 0, respectively), with the TRT1 group having fewer cows that resumed ovarian cyclicity but fewer days open compared with both TRT2 and CTR groups. More research is warranted to better understand the mechanism(s) by which intravaginal LAB expedited uterine involution and affected hormonal profiles.
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Affiliation(s)
- Q Deng
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - J F Odhiambo
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - U Farooq
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - T Lam
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - S M Dunn
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - M G Gänzle
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - B N Ametaj
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5.
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Abstract
Background Methods Results Conclusions
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Kersh EN, Henning T, Vishwanathan SA, Morris M, Butler K, Adams DR, Guenthner P, Srinivasan P, Smith J, Radzio J, Garcia-Lerma JG, Dobard C, Heneine W, McNicholl J. SHIV susceptibility changes during the menstrual cycle of pigtail macaques. J Med Primatol 2014; 43:310-6. [PMID: 24779484 DOI: 10.1111/jmp.12124] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND Hormonal changes during menstrual cycling may affect susceptibility to HIV. METHODS We determined the simian human immunodeficiency virus (SHIV) acquisition time point in 43 cycling pigtail macaques infected by repeated vaginal virus exposures initiated randomly in the cycle. RESULTS SHIV infection was first detected in the follicular phase in 38 macaques (88%), and in the luteal phase in five macaques (12%), indicating a statistically significant timing difference. Assuming a 7-day eclipse phase, most infections occurred during or following a high-progesterone period associated with menstruation, vaginal epithelium thinning, and suppressed mucosal immunity. CONCLUSIONS This raises questions whether other high-progesterone conditions (pregnancy, hormonal contraception) similarly affect HIV risk.
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Affiliation(s)
- Ellen N Kersh
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA
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Ahrens K, Mumford SL, Schliep KC, Kissell KA, Perkins NJ, Wactawski-Wende J, Schisterman EF. Serum leptin levels and reproductive function during the menstrual cycle. Am J Obstet Gynecol 2014; 210:248.e1-9. [PMID: 24215851 DOI: 10.1016/j.ajog.2013.11.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 10/18/2013] [Accepted: 11/05/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVE The purpose of this study was to investigate the role of leptin on reproductive hormones and ovulation. STUDY DESIGN The BioCycle Study (2005-2007) followed 259 healthy premenopausal women not using hormonal contraceptives for ≤2 menstrual cycles (n = 509 cycles). Serum leptin, estradiol, progesterone, luteinizing hormone (LH), follicle-stimulating hormone, and testosterone were measured ≤8 times per cycle. The association of time-varying leptin and reproductive hormones over the cycle was estimated with the use of linear mixed models that were adjusted for percent body fat and age with inverse probability weighting for time-varying physical activity, caloric intake, and other reproductive hormones. The odds ratio for sporadic anovulation (n = 42 cycles) was estimated with the use of generalized linear models that were adjusted for percent body fat and age. RESULTS Geometric mean serum leptin levels increased from menses to the late luteal phase (16.7-20.4 ng/mL; P < .01), with a mid-cycle peak (21.7 ng/mL) at the time of the LH surge (P < .01). A 10% higher leptin level across the menstrual cycle was associated with higher estradiol levels (2.2%; 95% CI, 1.5-3.0), luteal progesterone levels (2.1%; 95% CI, 0.5-3.7), ovulatory LH levels (1.2%; 95% CI, 0-2.3), testosterone levels (0.6%; 95% CI, 0.3-0.9), and lower follicle-stimulating hormone levels (-0.7%; 95% CI, -1.1 to -0.4). Leptin at the time of the expected LH surge was moderately inversely associated with sporadic anovulation (per log increase in leptin; adjusted odds ratio, 0.58; 95% CI, 0.28-1.22). CONCLUSION The association that was observed between leptin level and reproductive function points to a possible relationship between serum leptin level and enhanced fertility.
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Abstract
Much remains to be understood about the etiology of eating disorders. There is substantial evidence that reproductive hormones, specifically estrogens, play a direct role in normal food intake. Evidence is increasing that the reproductive hormones play a role in the abnormal food intake associated with eating disorders. For example, there is an inverse association between estradiol and eating disorder symptoms. Preliminary studies also suggest that hormone augmentation may be a beneficial adjunct to the standard treatment of choice for eating disorders. However, research is limited, so definitive conclusions about the benefit of hormone augmentation in treatment cannot be drawn. Future research, with a focus on translational studies, should continue to explore the role of reproductive hormones in the vulnerability to and maintenance of eating disorders.
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Affiliation(s)
- Jessica H Baker
- Department of Psychiatry, University of North Carolina at Chapel Hill, 101 Manning Drive, CB #7160, Chapel Hill, NC 27599, USA
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Abstract
Scientists, public health and school officials are paying growing attention to the mechanism underlying the delayed sleep patterns common in human adolescents. Data suggest that a propensity towards evening chronotype develops during puberty, and may be caused by developmental alterations in internal daily timekeeping. New support for this theory has emerged from recent studies which show that pubertal changes in chronotype occur in many laboratory species similar to human adolescents. Using these species as models, we find that pubertal changes in chronotype differ by sex, are internally generated, and driven by reproductive hormones. These chronotype changes are accompanied by alterations in the fundamental properties of the circadian timekeeping system, including endogenous rhythm period and sensitivity to environmental time cues. After comparing the developmental progression of chronotype in different species, we propose a theory regarding the ecological relevance of adolescent chronotype, and provide suggestions for improving the sleep of human adolescents.
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