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Janoski JR, Aiello I, Lundberg CW, Finkielstein CV. Circadian clock gene polymorphisms implicated in human pathologies. Trends Genet 2024:S0168-9525(24)00110-0. [PMID: 38871615 DOI: 10.1016/j.tig.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 06/15/2024]
Abstract
Circadian rhythms, ~24 h cycles of physiological and behavioral processes, can be synchronized by external signals (e.g., light) and persist even in their absence. Consequently, dysregulation of circadian rhythms adversely affects the well-being of the organism. This timekeeping system is generated and sustained by a genetically encoded endogenous mechanism composed of interlocking transcriptional/translational feedback loops that generate rhythmic expression of core clock genes. Genome-wide association studies (GWAS) and forward genetic studies show that SNPs in clock genes influence gene regulation and correlate with the risk of developing various conditions. We discuss genetic variations in core clock genes that are associated with various phenotypes, their implications for human health, and stress the need for thorough studies in this domain of circadian regulation.
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Affiliation(s)
- Jesse R Janoski
- Integrated Cellular Responses Laboratory, Fralin Biomedical Research Institute at VTC, Virginia Tech, Roanoke, VA, USA; Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Ignacio Aiello
- Integrated Cellular Responses Laboratory, Fralin Biomedical Research Institute at VTC, Virginia Tech, Roanoke, VA, USA
| | - Clayton W Lundberg
- Integrated Cellular Responses Laboratory, Fralin Biomedical Research Institute at VTC, Virginia Tech, Roanoke, VA, USA; Academy of Integrated Sciences, College of Science, Virginia Tech, Blacksburg, VA, USA
| | - Carla V Finkielstein
- Integrated Cellular Responses Laboratory, Fralin Biomedical Research Institute at VTC, Virginia Tech, Roanoke, VA, USA; Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA; Molecular Diagnostics Laboratory, Fralin Biomedical Research Institute at VTC, Virginia Tech, Roanoke, VA, USA; Academy of Integrated Sciences, College of Science, Virginia Tech, Blacksburg, VA, USA.
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Gica S, Demirkol MK, Yildirim A, Temiz Dogan N, Resim S. Evening type negatively affects semen quality by deteriorating sperm morphology: Results from an infertility clinic. Eur J Obstet Gynecol Reprod Biol 2023; 291:190-195. [PMID: 38353088 DOI: 10.1016/j.ejogrb.2023.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 09/13/2023] [Accepted: 10/15/2023] [Indexed: 02/16/2024]
Abstract
OBJECTIVE The effect of sleep-related variables on the reproductive system has garnered attention in recent years. One of the mediators that reportedly plays an important role in the relationship between sleep disorders and the reproductive system is a disruption of the circadian rhythm. The aim of curent study is to investigate the effect of chronotype on morning semen quality. STUDY DESIGN Three-hundred and fourteen patients who applied to the infertility clinic were included in the study. The patients filled a socio-demographic data form. The "Pittsburg Sleep Quality Index (PSQI) was used to evaluate the sleep quality while the chronotypes of the patients were evaluated with the "Morningness -Eveningness-Questionnaire (MEQ)". Semen analyses and biochemical analysis for testosterone serum plasma level of all patients were performed. RESULTS Twenty-one patients were assigned as evening, 187 patients were assigned as intermediate, and 106 were assigned as morning chronotype. No statistically significant difference was identified in the comparison of the mean MEQ scores between patients with low and normal sperm concentrations(p = 0.884). A correlation analysis indicated the presence of a significant positive correlation between normal morphology and MEQ scores (r = 0.13, p < 0.05) and a negative corelation between the hours spent in bed and sperm concentration (r = -0.13, p < 0.05). A general linear model created with independent variables suggested that the presence of varicocele and MEQ scores had a significant effect on normal morphology. CONCLUSION The results of present study support that evening type could negatively affect sperm morphology; additionally, the time spent in bed also negatively affected sperm concentration.
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Affiliation(s)
- Sakir Gica
- Department of Psychiatry, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.
| | - Mehmet Kutlu Demirkol
- Department of Urology, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
| | - Abdullah Yildirim
- Department of Psychiatry, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
| | - Neslihan Temiz Dogan
- Andrology Laboratory, Department of Urology, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
| | - Sefa Resim
- Department of Urology, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
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He M, Liu K, Cao J, Chen Q. An update on the role and potential mechanisms of clock genes regulating spermatogenesis: A systematic review of human and animal experimental studies. Rev Endocr Metab Disord 2023; 24:585-610. [PMID: 36792803 DOI: 10.1007/s11154-022-09783-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/25/2022] [Indexed: 02/17/2023]
Abstract
Circadian clocks can be traced in nearly all life kingdoms, with the male reproductive system no exception. However, our understanding of the circadian clock in spermatogenesis seems to fall behind other scenarios. The present review aims to summarize the current knowledge about the role and especially the potential mechanisms of clock genes in spermatogenesis regulation. Accumulating studies have revealed rhythmic oscillation in semen parameters and some physiological events of spermatogenesis. Disturbing the clock gene expression by genetic mutations or environmental changes will also notably damage spermatogenesis. On the other hand, the mechanisms of spermatogenetic regulation by clock genes remain largely unclear. Some recent studies, although not revealing the entire mechanisms, indeed attempted to shed light on this issue. Emerging clues hinted that gonadal hormones, retinoic acid signaling, homologous recombination, and the chromatoid body might be involved in the regulation of spermatogenesis by clock genes. Then we highlight the challenges and the promising directions for future studies so as to stimulate attention to this critical field which has not gained adequate concern.
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Affiliation(s)
- Mengchao He
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Kun Liu
- Center for Disease Control and Prevention of Southern Theatre Command, Guangzhou, 510630, China
| | - Jia Cao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
| | - Qing Chen
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
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Liu K, Meng T, Chen Q, Hou G, Wang X, Hu S, Gu X, Li H, Li Y, Xiong C, Cao J. Diurnal rhythm of human semen quality: analysis of large-scale human sperm bank data and timing-controlled laboratory study. Hum Reprod 2022; 37:1727-1738. [PMID: 35690928 PMCID: PMC9340113 DOI: 10.1093/humrep/deac135] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/21/2022] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION Can we identify diurnal oscillations in human semen parameters as well as peak times of semen quality? SUMMARY ANSWER Human semen parameters show substantial diurnal oscillation, with most parameters reaching a peak between 1100 and 1500 h. WHAT IS KNOWN ALREADY A circadian clock appears to regulate different physiological functions in various organs, but it remains controversial whether diurnal rhythms occur in human semen parameters. STUDY DESIGN, SIZE, DURATION The medical record of a provincial human sperm bank (HSB) with 33 430 semen samples collected between 0800 and 1700 h from 1 March 2010 to 8 July 2015 was used to analyze variation in semen parameters among time points. A laboratory study was conducted to collect semen samples (n = 36) from six volunteers at six time points with identical time intervals (2 days plus 4 h) between 6 June and 8 July in 2019, in order to investigate the diurnal oscillation of semen parameters in vivo, with a strictly controlled abstinence period. Therefore, the sperm bank study with a large sample size and the in vivo study with a strictly controlled abstinence period in a 24-h time window could be compared to describe the diurnal rhythms in human semen parameters. PARTICIPANTS/MATERIALS, SETTING, METHODS Samples were obtained from potential HSB donors and from participants in the laboratory study who were volunteers, recruited by flyers distributed in the community. Total sperm count, sperm concentration, semen volume, progressive motility and total motility were assessed using computer-aided sperm analysis. In addition, sperm chromatin integrity parameters (DNA fragmentation index and high DNA stainability) were assessed by the sperm chromatin structure assay, and sperm viability was measured with flow cytometry in the laboratory study. MAIN RESULTS AND THE ROLE OF CHANCE The 33 430 samples from the HSB showed a temporal variation in total sperm count, sperm concentration, semen volume, progressive motility and total motility (all P < 0.001) between 0800 and 1700 h. Consequently, the eligibility of semen samples for use in ART, based on bank standards, fluctuated with time point. Each hour earlier/later than 1100 h was associated with 1.14-fold risk of ineligibility. Similarly, the 36 samples taken during the 24-h time window showed diurnal oscillation. With the pre-collection abstinence period strictly controlled, most semen parameters reached the most favorable level between 1100 and 1500 h. LIMITATIONS, REASONS FOR CAUTION Some of the possible confounding factors, such as energy intake, which might influence semen quality or diurnal rhythms, were not adjusted for in the analyses. In addition, the findings should be considered with caution because the study was conducted in a specific population, time and place, while the timing of oscillations could differ with changing conditions. WIDER IMPLICATIONS OF THE FINDINGS The findings could help us to estimate semen quality more precisely and to obtain higher quality sperm for use in ART and in natural conception. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by the National Natural Science Foundation of China (81871208) and National Key R&D Program of China (2017YFC1002001). There are no conflicts of interest to declare. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
| | | | | | - Guizhong Hou
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
- Institute for Vaccine Clinical Research, Hebei Province Center for Disease Control and Prevention, Hebei, China
| | - Xiaogang Wang
- Department of Chemical Defense Medicine, School of Military Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Siheng Hu
- Hubei Province Human Sperm Bank, Center of Reproductive Medicine, Wuhan Tongji Reproductive Medicine Hospital, Wuhan, China
| | - Xiuli Gu
- Hubei Province Human Sperm Bank, Center of Reproductive Medicine, Wuhan Tongji Reproductive Medicine Hospital, Wuhan, China
| | - Honggang Li
- Hubei Province Human Sperm Bank, Center of Reproductive Medicine, Wuhan Tongji Reproductive Medicine Hospital, Wuhan, China
| | - Yuyan Li
- Reproductive Medical Center, First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China
| | - Chengliang Xiong
- Correspondence address. Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China. E-mail: (J.C.); Hubei Province Human Sperm Bank, Center of Reproductive Medicine, Wuhan Tongji Reproductive Medicine Hospital, Wuhan 430000, China. E-mail: (C.X.)
| | - Jia Cao
- Correspondence address. Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China. E-mail: (J.C.); Hubei Province Human Sperm Bank, Center of Reproductive Medicine, Wuhan Tongji Reproductive Medicine Hospital, Wuhan 430000, China. E-mail: (C.X.)
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Analysis on the desert adaptability of indigenous sheep in the southern edge of Taklimakan Desert. Sci Rep 2022; 12:12264. [PMID: 35851076 PMCID: PMC9293982 DOI: 10.1038/s41598-022-15986-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 07/04/2022] [Indexed: 11/25/2022] Open
Abstract
The southern margin of the Taklimakan Desert is characterized by low rainfall, heavy sandstorms, sparse vegetation and harsh ecological environment. The indigenous sheep in this area are rich in resources, with the advantages of perennial estrus and good resistance to stress in most sheep. Exploring the molecular markers of livestock adaptability in this environment will provide the molecular basis for breeding research to cope with extreme future changes in the desert environment. In this study, we analyzed the population genetic structure and linkage imbalance of five sheep breeds with three different agricultural geographic characteristics using four complementary genomic selection signals: fixation index (FST), cross-population extended haplotype homozygosity (xp-EHH), Rsb (extended haplotype homozygosity between-populations) and iHS (integrated haplotype homozygosity score). We used Illumina Ovine SNP 50K Genotyping BeadChip Array, and gene annotation and enrichment analysis were performed on selected regions of the obtained genome. The ovary of Qira Black sheep (Follicular phase, Luteal phase, 30th day of pregnancy, 45th day of pregnancy) was collected, and the differentially expressed genes were screened by transcriptomic sequencing. Genome-wide selective sweep results and transcriptome data were combined for association analysis to obtain candidate genes associated with perennial estrus and stable reproduction. In order to verify the significance of the results, 15 resulting genes were randomly selected for fluorescence quantitative analysis. The results showed that Dolang sheep and Qira Black sheep evolved from Kazak sheep. Linkage disequilibrium analysis showed that the decay rate of sheep breeds in the Taklimakan Desert was higher than that in Yili grassland. The signals of FST, xp-EHH, Rsb and iHS detected 526, 332, 308 and 408 genes, respectively, under the threshold of 1% and 17 overlapping genes under the threshold of 5%. A total of 29 genes were detected in association analysis of whole-genome and transcriptome data. This study reveals the genetic mechanism of perennial estrus and environmental adaptability of indigenous sheep breeds in the Taklimakan Desert. It provides a theoretical basis for the conservation and exploitation of genetic resources of indigenous sheep breeds in extreme desert environment. This provides a new perspective for the quick adaptation of sheep and other mammals to extreme environments and future climate changes.
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Zhong O, Liao B, Wang J, Liu K, Lei X, Hu L. Effects of Sleep Disorders and Circadian Rhythm Changes on Male Reproductive Health: A Systematic Review and Meta-analysis. Front Physiol 2022; 13:913369. [PMID: 35910569 PMCID: PMC9326175 DOI: 10.3389/fphys.2022.913369] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives: The purpose of this study was to elucidate the relationship between sleep disorders and male reproductive health, and to explore the underlying mechanisms via a systematic review and meta-analysis. Methods: PubMed, Embase, The Cochrane library, Web of Science, Scopus databases were searched to collect clinical research on the effects of sleep disorders on male semen parameters from inception to February 24, 2022. RevMan 5.4 was used for meta-statistical analysis. Stata16 software was used to detect publication bias. Results: The results of meta-analysis showed that sleep disorders were associated with reduced total sperm count (mean difference (MD) = −27.91, 95% CI = (−37.82, −18.01), p < 0.001), reduced sperm concentration (MD = −5.16, 95% CI = (−9.67, −0.65), p = 0.02), reduced progressive motility (MD = −2.94, 95% CI = (−5.28, −0.59), p = 0.01), and reduced normal morphology (MD = −0.52, 95% CI = (−0.80, −0.24), p < 0.001). However, there is no significant association between sleep disorders and semen volume/reproductive hormones. Further bioinformatics mining revealed that related clock genes (PER1, PER2, CRY2, NR1D1 and NPAS2) were down-regulated in non-obstructive azoospermia patients. Conclusion: In conclusion, current evidence suggests that sleep disorders have a negative impact on male reproductive health, and its underlying mechanism may be related to circadian rhythm disorders. However, the relationship between sleep disorders and reproductive hormone levels has not been found. Due to the limited number and quality of included studies, the above findings need to be validated by more high-quality studies.
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Affiliation(s)
- Ou Zhong
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, China
| | - Biyun Liao
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Jinyuan Wang
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, China
| | - Ke Liu
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, China
| | - Xiaocan Lei
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, China
- *Correspondence: Xiaocan Lei, ; Linlin Hu,
| | - Linlin Hu
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- *Correspondence: Xiaocan Lei, ; Linlin Hu,
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7
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Medar ML, Andric SA, Kostic TS. Stress-induced glucocorticoids alter the Leydig cells' timing and steroidogenesis-related systems. Mol Cell Endocrinol 2021; 538:111469. [PMID: 34601003 DOI: 10.1016/j.mce.2021.111469] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/17/2021] [Accepted: 09/29/2021] [Indexed: 11/26/2022]
Abstract
The study aimed to analyze the time-dependent consequences of stress on gene expression responsible for diurnal endocrine Leydig cell function connecting them to the glucocorticoid-signaling. In the first 24h after the stress event, a daily variation of blood corticosterone increased, and testosterone decreased; the testosterone/corticosterone were lowest at the end of the stress session overlapping with inhibition of Leydig cells' steroidogenesis-related genes (Nr3c1/GR, Hsd3b1/2, Star, Cyp17a1) and changed circadian activity of the clock genes (the increased Bmal1/BMAL1 and Per1/2/PER1 and decreased Cry1 and Rev-erba). The glucocorticoid-treated rats showed a similar response. The principal-component-analysis (PCA) displayed an absence of significant differences between treatments especially on Per1 and Rev-erba, the findings confirmed by the in vivo blockade of the testicular glucocorticoid receptor (GR) during stress and ex vivo treatment of the Leydig cells with hydrocortisone and GR-blocker. In summary, stressful stimuli can entrain the clock in the Leydig cells through glucocorticoid-mediated communication.
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Affiliation(s)
- Marija Lj Medar
- The University of Novi Sad, Faculty of Sciences Novi Sad, Department of Biology and Ecology, Laboratory for Chronobiology and Aging, Laboratory for Reproductive Endocrinology and Signaling, Novi Sad, Serbia
| | - Silvana A Andric
- The University of Novi Sad, Faculty of Sciences Novi Sad, Department of Biology and Ecology, Laboratory for Chronobiology and Aging, Laboratory for Reproductive Endocrinology and Signaling, Novi Sad, Serbia
| | - Tatjana S Kostic
- The University of Novi Sad, Faculty of Sciences Novi Sad, Department of Biology and Ecology, Laboratory for Chronobiology and Aging, Laboratory for Reproductive Endocrinology and Signaling, Novi Sad, Serbia.
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Li MD, Xin H, Yuan Y, Yang X, Li H, Tian D, Zhang H, Zhang Z, Han TL, Chen Q, Duan G, Ju D, Chen K, Deng F, He W. Circadian Clock-Controlled Checkpoints in the Pathogenesis of Complex Disease. Front Genet 2021; 12:721231. [PMID: 34557221 PMCID: PMC8452875 DOI: 10.3389/fgene.2021.721231] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 08/16/2021] [Indexed: 12/26/2022] Open
Abstract
The circadian clock coordinates physiology, metabolism, and behavior with the 24-h cycles of environmental light. Fundamental mechanisms of how the circadian clock regulates organ physiology and metabolism have been elucidated at a rapid speed in the past two decades. Here we review circadian networks in more than six organ systems associated with complex disease, which cluster around metabolic disorders, and seek to propose critical regulatory molecules controlled by the circadian clock (named clock-controlled checkpoints) in the pathogenesis of complex disease. These include clock-controlled checkpoints such as circadian nuclear receptors in liver and muscle tissues, chemokines and adhesion molecules in the vasculature. Although the progress is encouraging, many gaps in the mechanisms remain unaddressed. Future studies should focus on devising time-dependent strategies for drug delivery and engagement in well-characterized organs such as the liver, and elucidating fundamental circadian biology in so far less characterized organ systems, including the heart, blood, peripheral neurons, and reproductive systems.
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Affiliation(s)
- Min-Dian Li
- Department of Cardiology and the Center for Circadian Metabolism and Cardiovascular Disease, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Haoran Xin
- Department of Cardiology and the Center for Circadian Metabolism and Cardiovascular Disease, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yinglin Yuan
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
| | - Xinqing Yang
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Hongli Li
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dingyuan Tian
- Department of Cardiology and the Center for Circadian Metabolism and Cardiovascular Disease, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Hua Zhang
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhihui Zhang
- Department of Cardiology and the Center for Circadian Metabolism and Cardiovascular Disease, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Ting-Li Han
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qing Chen
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Guangyou Duan
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Dapeng Ju
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ka Chen
- Research Center for Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing, China
| | - Fang Deng
- Key Laboratory of Extreme Environmental Medicine, Department of Pathophysiology, College of High Altitude Military Medicine, Ministry of Education of China, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Army Medical University (Third Military Medical University), Chongqing, China
| | - Wenyan He
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Gyorik D, Eszlari N, Gal Z, Torok D, Baksa D, Kristof Z, Sutori S, Petschner P, Juhasz G, Bagdy G, Gonda X. Every Night and Every Morn: Effect of Variation in CLOCK Gene on Depression Depends on Exposure to Early and Recent Stress. Front Psychiatry 2021; 12:687487. [PMID: 34512413 PMCID: PMC8428175 DOI: 10.3389/fpsyt.2021.687487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 07/30/2021] [Indexed: 12/21/2022] Open
Abstract
The role of circadian dysregulation is increasingly acknowledged in the background of depressive symptoms, and is also a promising treatment target. Similarly, stress shows a complex relationship with the circadian system. The CLOCK gene, encoding a key element in circadian regulation has been implicated in previous candidate variant studies in depression with contradictory findings, and only a few such studies considered the interacting effects of stress. We investigated the effect of CLOCK variation with a linkage-disequilibrium-based clumping method, in interaction with childhood adversities and recent negative life events, on two phenotypes of depression, lifetime depression and current depressive symptoms in a general population sample. Methods: Participants in NewMood study completed questionnaires assessing childhood adversities and recent negative life events, the Brief Symptom Inventory to assess current depressive symptoms, provided data on lifetime depression, and were genotyped for 1054 SNPs in the CLOCK gene, 370 of which survived quality control and were entered into linear and logistic regression models with current depressive symptoms and lifetime depression as the outcome variable, and childhood adversities or recent life events as interaction variables followed by a linkage disequilibrium-based clumping process to identify clumps of SNPs with a significant main or interaction effect. Results: No significant clumps with a main effect were found. In interaction with recent life events a significant clump containing 94 SNPs with top SNP rs6825994 for dominant and rs6850524 for additive models on current depression was identified, while in interaction with childhood adversities on current depressive symptoms, two clumps, both containing 9 SNPs were found with top SNPs rs6828454 and rs711533. Conclusion: Our findings suggest that CLOCK contributes to depressive symptoms, but via mediating the effects of early adversities and recent stressors. Given the increasing burden on circadian rhythmicity in the modern lifestyle and our expanding insight into the contribution of circadian disruption in depression especially as a possible mediator of stress, our results may pave the way for identifying those who would be at an increased risk for depressogenic effects of circadian dysregulation in association with stress as well as new molecular targets for intervention in stress-related psychopathologies in mood disorders.
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Affiliation(s)
- Dorka Gyorik
- Faculty of Medicine, Semmelweis University, Budapest, Hungary
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | - Nora Eszlari
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
- NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
| | - Zsofia Gal
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | - Dora Torok
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | - Daniel Baksa
- NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
- SE-NAP-2 Genetic Brain Imaging Migraine Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
| | - Zsuliet Kristof
- Doctoral School of Mental Health Sciences, Semmelweis University, Budapest, Hungary
- Laboratory of Molecular Pharmacology, Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest, Hungary
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
| | - Sara Sutori
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
| | - Peter Petschner
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - Gabriella Juhasz
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
- SE-NAP-2 Genetic Brain Imaging Migraine Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - Gyorgy Bagdy
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary
- NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - Xenia Gonda
- NAP-2-SE New Antidepressant Target Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
- MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
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Wang J, Tang F, Gao C, Gao X, Xu B, Shi F. Comparative transcriptome between male fertile and male sterile alfalfa ( Medicago varia). PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:1487-1498. [PMID: 34366591 PMCID: PMC8295440 DOI: 10.1007/s12298-021-01026-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/14/2021] [Accepted: 06/23/2021] [Indexed: 05/05/2023]
Abstract
UNLABELLED Male sterility is an important factor in improving crop quality and yield through heterosis breeding. In this study, we analyzed the transcriptomes of male fertile (MF) and male sterile (MS) alfalfa flower buds using the Illumina HiSeq™ 4000 platform. A total of 54.05 million clean reads were generated and assembled into 65,777 unigenes with an average length of 874 bp. The differentially expressed genes (DEGs) between the MF and MS flowers at three stages of pollen development were identified, and there were 3832, 5678 and 5925 DEGs respectively in stages 1, 2 and 3. GO and KEGG functional enrichment analysis revealed 12, 12, 6 and 12 key branch-point genes involved in circadian rhythm, transcription factors, pollen development and flavonoid biosynthesis. Our findings provide novel insights into the mechanism of male sterility in alfalfa. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01026-x.
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Affiliation(s)
- Jia Wang
- Key Laboratory of Grassland Resources, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, No.29 Erdos Street, Saihan District, Hohhot, 010011 Inner Mongolia China
- Department of Pharmacy, Baotou Medical College, Baotou, 014040 Inner Mongolia China
| | - Fang Tang
- Key Laboratory of Grassland Resources, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, No.29 Erdos Street, Saihan District, Hohhot, 010011 Inner Mongolia China
| | - Cuiping Gao
- Key Laboratory of Grassland Resources, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, No.29 Erdos Street, Saihan District, Hohhot, 010011 Inner Mongolia China
| | - Xia Gao
- Key Laboratory of Grassland Resources, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, No.29 Erdos Street, Saihan District, Hohhot, 010011 Inner Mongolia China
| | - Bo Xu
- Key Laboratory of Grassland Resources, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, No.29 Erdos Street, Saihan District, Hohhot, 010011 Inner Mongolia China
| | - Fengling Shi
- Key Laboratory of Grassland Resources, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, No.29 Erdos Street, Saihan District, Hohhot, 010011 Inner Mongolia China
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He M, Zhou W, Liu K, Wang X, Liu C, Shi F, Cao J, Chen Q. The prevalence of male rotating shift work correlates with reduced total fertility rate: an ecological study of 54,734 reproductive-aged males in 35 European countries between 2000 and 2015. Chronobiol Int 2021; 38:1072-1082. [PMID: 33823715 DOI: 10.1080/07420528.2021.1907396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Europe has the lowest fertility rate in the world, and 19 European countries are already experiencing negative population growth. Previous studies have shown that light-dark cycle misalignment induces damages to semen quality in animals, but whether shift work impairs male human fertility remains controversial. The diverse types of shift work, which may have distinct health impacts, have not been differentiated in the few previous studies. The present study aims to assess the impact of different male shift work types, i.e., rotating shift work (RSW), permanent shift work (PSW), and daily split shifts (DSS), on male fertility in European countries, based on the European Working Conditions Survey of 54,734 men and 52,457 women of reproductive (15-49 years) age from 35 countries conducted between 2000 and 2015. Year-specific total fertility rate (TFR) for each country was obtained from the World Bank. Mixed linear model was used to analyze the association between the prevalence of shift work types and TFR among the countries during the 15 years span, with adjustment for latitude, per capita GDP, working duration, working frequency, median age of men or women engaged in shift work, education level of men or women, and female shift-work condition in reproductive aged participants. The results showed that the average prevalence of RSW declined from 15.6% in 2000 to 9.8% in 2010, and then rose to 11.1% by 2015, while TFR went up from 1.45 in 2000 to 1.60 in 2010, and then decreased to 1.56 in 2015. A 10% increase of RSW prevalence was associated with a 0.114 decrease of TFR (95% CI: -0.167, -0.061, P < .001), indicating 11.4 fewer births per 100 women throughout lifetime. The association remained significant (β = -0.088, 95% CI: -0.160, -0.015, P = .020) after adjusting for confounding factors. However, no association was observed between TFR and the prevalence of male PSW (β = -0.011, 95% CI: -0.094, 0.073, P = .801) or DSS (β = 0.357, 95% CI: -0.171, 0.884, P = .189). In conclusion, male RSW, rather than PSW and DSS, may reduce TFR. Further studies are needed to validate our findings.
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Affiliation(s)
- Mengchao He
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Wenzheng Zhou
- Department of Quality Control, Chongqing Health Center for Women and Children, Chongqing, China
| | - Kun Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiaogang Wang
- Frontier Defence Medical Service Training Group, Third Military Medical University (Army Medical University), Xinjiang, China
| | - Chang Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Fuquan Shi
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jia Cao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Qing Chen
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
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Wang Y, Chen Q, Liu K, Wang X, Yang H, Zhou N, Ao L, Liu J, Cao J. Sleep behavior is associated with over two-fold decrease of sperm count in a chronotype-specific pattern: path analysis of 667 young men in the MARHCS study. Chronobiol Int 2021; 38:871-882. [PMID: 33715553 DOI: 10.1080/07420528.2021.1896534] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Recent studies have shown that the reduction of sperm count is associated with sleep behaviors, including restricted/excessive sleep duration, late sleep time midpoint, and shift of sleep midpoint time (social jetlag). Chronotype is suggested to regulate sleep behaviors; however, the relationship between chronotype and human sperm count is unknown. The relationship between sleep behaviors and human sperm count, when sleep behaviors as well as chronotype are controlled is also unclear. We performed a path analysis of the data obtained from 667 Chinese men recruited into the MARHCS (Male Reproductive Health in Chongqing College Students) study. Chronotype, sleep duration, sleep time midpoint, and social jetlag were estimated by the Munich Chronotype Questionnaire. Sperm count was measured by computer-aided sperm analysis. The comprehensive relationship between chronotype, all sleep behaviors, and sperm count was tested by path analysis, in which the standardized residual of sperm count was used for adjustment of age, abstinence period, body mass index, tobacco smoking, alcohol drinking, and intake of tea, cola, and coffee. Our major findings are: (1) Chronotype negatively correlated with sleep duration (correlation coefficient (R) = -0.32, P < .001) and positively correlated with sleep midpoint (R = 0.65, P < .001) and social jetlag (R = 0.37, P < .001). (2) Sleep duration (U-shape transformed; R = -0.11, P = .005), sleep midpoint (R = -0.09, P = .021), and social jetlag (R = -0.12, P = .001), respectively, correlated with sperm count in univariate analysis. The relationship between sleep midpoint and sperm count disappeared when social jetlag was controlled. (3) Path analysis showed that chronotype is connected with sperm count through two pathways: via sleep duration (standardized path coefficient = -0.09, 95% CI: -0.17 to -0.01, P = .030) and via social jetlag (standardized path coefficient = -0.09, 95% CI: -0.17 to -0.01, P = .031). For men of earlier, intermediate, and later tertile of chronotype, the sleep-duration-related decrease of sperm count was separately estimated to be 16.3%, 12.8%, and 11.6%, while the social-jetlag-related decrease of sperm count was estimated to be 9.3%, 12.8%, and 19.2%. The total effect of sleep behaviors on sperm count was estimated to be 25.7%, 25.6%, and 30.7%, with an average of 27.4% for men of different chronotypes. The present study showed that men of earlier chronotype were prone to restricted/excessive sleep duration, while men of later chronotype were prone to social jetlag, both of which correlated with reduced sperm count, suggesting that chronotype may modulate the sleep behaviors and exert dual effects on sperm count via different sleep behaviors, leading to a ubiquitous sperm decline. Men of different chronotypes should take care to avoid different types of improper sleep behaviors, so as to prevent such deleterious effect on sperm count.
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Affiliation(s)
- Yimeng Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Qing Chen
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Kun Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiaogang Wang
- Frontier Defence Medical Service Training Group, Third Military Medical University (Army Medical University), Xinjiang, China
| | - Huan Yang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Niya Zhou
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Lin Ao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jinyi Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jia Cao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
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Xu Y, Wang L, Cao S, Hu R, Liu R, Hua K, Guo Z, Di HJ, Hu Z. Genipin improves reproductive health problems caused by circadian disruption in male mice. Reprod Biol Endocrinol 2020; 18:122. [PMID: 33308222 PMCID: PMC7731552 DOI: 10.1186/s12958-020-00679-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 12/06/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Circadian rhythm disruption impacts a wide range of physiological processes, including fertility. However, the effect of circadian disruption on male spermatogenesis and fertility, and treatments for these effects have been largely unexplored at the molecular level. METHODS In this study, we examined the effects of genipin on improving the reproductive health problems caused by circadian disruption. Three groups of animals were fed under different conditions: control group (normal T cycle with saline), group of shortened T cycles (Light/Dark = 4 hours/4 hours) with saline, and a group of shortened T cycles with genipin by oral gavage. The male fertility was evaluated by fertility study and pups parameters analysis after successful sexual behavior and mating with female mice. We sacrificed the treated animals after 5 or 10 weeks and collected the testis, sperm and serum for histological analysis, sperm motility assay, and serum hormone detection, respectively. Furthermore, the effect of genipin was assessed by detection of progesterone secretion and steroidogenic key proteins expression, including StAR and CYP11A1, in mouse Leydig tumor MLTC-1 cells. RESULTS Male mice exposed to shortened light-dark cycles, much shorter than 24 hours, had reduced fertility with decreased sperm concentrations and sperm motility. Male mice under circadian disruption have reduced testis size and abnormal morphology, leading to lower fertility rates, reduced litter size and pup body weight. Treatment with exogenous genipin, a natural plant-derived compound, alleviated circadian disruption-induced damage to fertility and spermatogenesis and normalized testosterone, dihydrotestosterone (DHT), and androstenedione (ASD) levels in the male mice. The levels of key proteins involved in steroidogenesis, StAR and CYP11A1, were reduced in mouse testes after the circadian disruption, but genipin treatment restored the reduction. The mRNA expression of SRD5A1, which encodes an androgen synthesis enzyme, was also upregulated by genipin treatment. Furthermore, genipin treatment showed a positive effect on steroidogenesis in MLTC-1 cells, resulting in an increase in hormone secretion and the upregulation of StAR and CYP11A1. CONCLUSIONS Our results showed an association between circadian disruption and reproductive health problems in male mice and indicated that treatments with genipin have positive effects on the reproductive health of male mice with circadian rhythm disorders.
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Affiliation(s)
- Yihua Xu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Li Wang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Siyuan Cao
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Ruihua Hu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Rui Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Ke Hua
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Zhigang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China
| | - Hong-Jie Di
- Department of Endocrinology, The Second Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, 210017, Nanjing, China.
| | - Zhigang Hu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, 210023, Nanjing, China.
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Abstract
PURPOSE OF REVIEW To integrate evidence on the role of circadian rhythm in male reproduction. Several studies report on various aspects of the association between the circadian system and male reproductive function in animals and humans both in physiological condition as well as in the case of subfertility. RECENT FINDINGS Epidemiological data demonstrate diurnal and seasonal changes as well as the effect of sleep/wake cycles on the quality of semen. Rare and common genetic variation in circadian clock genes in humans and animal models support the role of circadian rhythms in male fertility in humans. SUMMARY Current data support the modest effect of the circadian clock on male reproductive potential; however, the evidence available is still fragmented and inconclusive. Additional well designed and sufficiently powered studies are needed to delineate the role of the circadian clock both in cause and potential interventional and preventive approaches in male subfertility.
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Affiliation(s)
- Ana Peterlin
- Faculty of Medicine, Institute of Histology and Embryology
| | - Tanja Kunej
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana
| | - Borut Peterlin
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
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15
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Ni W, Liu K, Hou G, Pan C, Wu S, Zheng J, Cao J, Chen Q, Huang X. Diurnal variation in sperm DNA fragmentation: analysis of 11,382 semen samples from two populations and in vivo animal experiments. Chronobiol Int 2019; 36:1455-1463. [PMID: 31418296 DOI: 10.1080/07420528.2019.1649275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Circadian rhythms have been found in some reproductive functions phenotypes but remain unclear for sperm DNA fragmentation index (DFI). The present study aims to investigate the diurnal variation of DFI in mice model and men sperm. Adult male mice were sacrificed for sperm DFI with Sperm Chromatin Structure Assay (SCSA) in 24 hours at 6 evenly distributed time points. A cosinor pattern of DFI was observed with a nadir at zeitgeber time 10 AM. In a community population with 630 semen samples collected between 8 AM and 20 PM, the temporal variation of DFI also fit a cosinor pattern with a - 343° acrophase and a nadir at 11 AM (P = .031). In a reproductive-medical-center dataset of 10752 semen samples collected between 7 AM and 11 AM, the decreasing trend of DFI was also confirmed. For the males with multiple samples, intra-individual comparison between different timepoints was performed, and each consecutive hour after 7 AM was also associated with 2.5 (95% CI: -1.0, 5.9)% lower DFI by SCSA or 4.9 (1.9, 7.8)% lower DFI by SCD. Our study reveals a daily diurnal variance in sperm DFI which may suggest a practical approach to get more qualified sperms for natural or assisted reproduction. Abbreviations: BMI, Body mass index; DFI, DNA fragmentation index; MARHCS, Male Reproductive Health in the Chongqing College Students; RMC, Reproductive Medical Center; SCD, Sperm Chromatin Dispersion; SCSA, Sperm Chromatin Structure Assay.
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Affiliation(s)
- Wuhua Ni
- Reproductive Medicine Center, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Kun Liu
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University) , Chongqing , China
| | - Guizhong Hou
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University) , Chongqing , China
| | - Chengshuang Pan
- Reproductive Medicine Center, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Suichun Wu
- Reproductive Medicine Center, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Jiujia Zheng
- Reproductive Medicine Center, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
| | - Jia Cao
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University) , Chongqing , China
| | - Qing Chen
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University) , Chongqing , China
| | - Xuefeng Huang
- Reproductive Medicine Center, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China
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Circadian regulation of endocrine systems. Auton Neurosci 2019; 216:1-8. [DOI: 10.1016/j.autneu.2018.10.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/18/2018] [Accepted: 10/20/2018] [Indexed: 01/05/2023]
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Family History as an Important Factor for Stratifying Participants in Genetic Studies of Major Depression. Balkan J Med Genet 2018; 21:5-12. [PMID: 30425904 PMCID: PMC6231308 DOI: 10.2478/bjmg-2018-0010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Depression is estimated to affect 350 million people worldwide. The World Mental Health Survey conducted in 17 countries found that, on average, about one in 20 people reported having an episode of depression in the previous year. Although depression has been shown to be moderately heritable by studies conducted in the past, the search for its so-called missing heritability has so far been unsuccessful. The difficulty in identifying common genetic variants predisposing to depression could be due to large sample sizes needed to detect small effects on genetic risk and the heterogeneous nature of major depressive disorder (MDD). The aim of our study was to determine whether there was a connection between a family history of depression in MDD patients and the presence of putative risk variants in the well-studied SLC6A4, COMT and PCLO genes. We analyzed 133 patients with MDD (30.0% with a positive family history for MDD and 70.0% sporadic cases) and compared them to 279 healthy controls. When comparing all the depressed patients to controls, no significant differences in genotype and allele distributions were detected. After stratifying patients according to their family history, the PCLO rs2522833 C allele was shown to be significantly less common in patients with a positive family history (p = 0.001), indicating a possible difference in the genetic structure of MDD between familial and sporadic cases and a less important role of the common genetic risk variants for the development of MDD in familial cases.
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de Assis LVM, Kinker GS, Moraes MN, Markus RP, Fernandes PA, Castrucci AMDL. Expression of the Circadian Clock Gene BMAL1 Positively Correlates With Antitumor Immunity and Patient Survival in Metastatic Melanoma. Front Oncol 2018; 8:185. [PMID: 29946530 PMCID: PMC6005821 DOI: 10.3389/fonc.2018.00185] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 05/10/2018] [Indexed: 12/11/2022] Open
Abstract
Introduction Melanoma is the most lethal type of skin cancer, with increasing incidence and mortality rates worldwide. Multiple studies have demonstrated a link between cancer development/progression and circadian disruption; however, the complex role of tumor-autonomous molecular clocks remains poorly understood. With that in mind, we investigated the pathophysiological relevance of clock genes expression in metastatic melanoma. Methods We analyzed gene expression, somatic mutation, and clinical data from 340 metastatic melanomas from The Cancer Genome Atlas, as well as gene expression data from 234 normal skin samples from genotype-tissue expression. Findings were confirmed in independent datasets. Results In melanomas, the expression of most clock genes was remarkably reduced and displayed a disrupted pattern of co-expression compared to the normal skins, indicating a dysfunctional circadian clock. Importantly, we demonstrate that the expression of the clock gene aryl hydrocarbon receptor nuclear translocator-like protein 1 (BMAL1) positively correlates with patient overall survival and with the expression of T-cell activity and exhaustion markers in the tumor bulk. Accordingly, high BMAL1 expression in pretreatment samples was significantly associated with clinical benefit from immune checkpoint inhibitors. The robust intratumoral T-cell infiltration/activation observed in patients with high BMAL1 expression was associated with a decreased expression of key DNA-repair enzymes, and with an increased mutational/neoantigen load. Conclusion Overall, our data corroborate previous reports regarding the impact of BMAL1 expression on the cellular DNA-repair capacity and indicate that alterations in the tumor-autonomous molecular clock could influence the cellular composition of the surrounding microenvironment. Moreover, we revealed the potential of BMAL1 as a clinically relevant prognostic factor and biomarker for T-cell-based immunotherapies.
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Affiliation(s)
- Leonardo Vinícius Monteiro de Assis
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Gabriela Sarti Kinker
- Laboratory of Neuroimmunemodulation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Maria Nathália Moraes
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Regina P Markus
- Laboratory of Neuroimmunemodulation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Pedro Augusto Fernandes
- Laboratory of Neuroimmunemodulation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Ana Maria de Lauro Castrucci
- Laboratory of Comparative Physiology of Pigmentation, Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil.,Department of Biology, University of Virginia, Charlottesville, VA, United States
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Hodžić A, Lavtar P, Ristanović M, Novaković I, Dotlić J, Peterlin B. Genetic variation in the CLOCK gene is associated with idiopathic recurrent spontaneous abortion. PLoS One 2018; 13:e0196345. [PMID: 29768442 PMCID: PMC5955485 DOI: 10.1371/journal.pone.0196345] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 04/11/2018] [Indexed: 11/18/2022] Open
Abstract
Physiological studies in animals and human support an important role of circadian system in reproduction. The aim of this study was to investigate the potential association of CLOCK gene polymorphisms with idiopathic recurrent spontaneous abortion (IRSA). We performed a case-control study. The study group consisted of 268 women with a history of three or more idiopathic recurrent spontaneous abortions and 284 women with at least two live births and no history of pathologic pregnancies all from Slovenia and Serbia. Two SNPs in the CLOCK gene were chosen and genotyped. The results showed a statistically significant difference in genotype distribution between the two groups in the CLOCK gene for rs6850524 and rs11932595. Our analysis showed that G allele under dominant model (GG+GC/CC) for rs6850524 (p = 2∙10-4, OR = 2.28, 95%CI = 1.46-3.56) as well as G allele under dominant model (GA+AA/AA) for rs11932595 (p = 0.04, OR = 1.47, 95%CI = 1.01-2.04) might be risk factors against IRSA. Our data suggest that genetic variability in the CLOCK gene is associated with IRSA warranting further confirmation and mechanistic investigations.
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Affiliation(s)
- Alenka Hodžić
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Polona Lavtar
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Momčilo Ristanović
- Institute of Human Genetics, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Ivana Novaković
- Institute of Human Genetics, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Jelena Dotlić
- Clinic for Obstetrics and Gynecology, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Borut Peterlin
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
- * E-mail:
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Yang J, Zhang Z, Zhang Y, Zheng X, Lu Y, Tao D, Liu Y, Ma Y. CLOCK interacts with RANBP9 and is involved in alternative splicing in spermatogenesis. Gene 2018; 642:199-204. [DOI: 10.1016/j.gene.2017.11.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 10/24/2017] [Accepted: 11/02/2017] [Indexed: 01/11/2023]
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21
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Lavtar P, Rudolf G, Maver A, Hodžić A, Starčević Čizmarević N, Živković M, Šega Jazbec S, Klemenc Ketiš Z, Kapović M, Dinčić E, Raičević R, Sepčić J, Lovrečić L, Stanković A, Ristić S, Peterlin B. Association of circadian rhythm genes ARNTL/BMAL1 and CLOCK with multiple sclerosis. PLoS One 2018; 13:e0190601. [PMID: 29324865 PMCID: PMC5764259 DOI: 10.1371/journal.pone.0190601] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 12/18/2017] [Indexed: 01/19/2023] Open
Abstract
Prevalence of multiple sclerosis varies with geographic latitude. We hypothesized that this fact might be partially associated with the influence of latitude on circadian rhythm and consequently that genetic variability of key circadian rhythm regulators, ARNTL and CLOCK genes, might contribute to the risk for multiple sclerosis. Our aim was to analyse selected polymorphisms of ARNTL and CLOCK, and their association with multiple sclerosis. A total of 900 Caucasian patients and 1024 healthy controls were compared for genetic signature at 8 SNPs, 4 for each of both genes. We found a statistically significant difference in genotype (ARNTL rs3789327, P = 7.5·10-5; CLOCK rs6811520 P = 0.02) distributions in patients and controls. The ARNTL rs3789327 CC genotype was associated with higher risk for multiple sclerosis at an OR of 1.67 (95% CI 1.35-2.07, P = 0.0001) and the CLOCK rs6811520 genotype CC at an OR of 1.40 (95% CI 1.13-1.73, P = 0.002). The results of this study suggest that genetic variability in the ARNTL and CLOCK genes might be associated with risk for multiple sclerosis.
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Affiliation(s)
- Polona Lavtar
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Gorazd Rudolf
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Aleš Maver
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Alenka Hodžić
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Nada Starčević Čizmarević
- Departments of Biology and Medical Genetics, School of Medicine, University of Rijeka, Rijeka, Croatia
| | - Maja Živković
- Laboratories of Radiobiology and Molecular Genetics, Institute of Nuclear Sciences “Vinča”, Belgrade, Serbia
| | - Saša Šega Jazbec
- Department of Neurology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Zalika Klemenc Ketiš
- Departments of Family Medicine, Medical School, University of Ljubljana, Ljubljana, Slovenia
- Departments of Family Medicine, Medical School, University of Maribor, Maribor, Slovenia
| | - Miljenko Kapović
- Departments of Biology and Medical Genetics, School of Medicine, University of Rijeka, Rijeka, Croatia
| | - Evica Dinčić
- Departments of Neurology, Military Medical Academy, Belgrade, Serbia
| | - Ranko Raičević
- Departments of Neurology, Military Medical Academy, Belgrade, Serbia
| | - Juraj Sepčić
- Postgraduate Studies, School of Medicine, University of Rijeka, Rijeka, Croatia
| | - Luca Lovrečić
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Aleksandra Stanković
- Laboratories of Radiobiology and Molecular Genetics, Institute of Nuclear Sciences “Vinča”, Belgrade, Serbia
| | - Smiljana Ristić
- Departments of Biology and Medical Genetics, School of Medicine, University of Rijeka, Rijeka, Croatia
| | - Borut Peterlin
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
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22
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Putilov AA, Dorokhov VB, Poluektov MG. How have our clocks evolved? Adaptive and demographic history of the out-of-African dispersal told by polymorphic loci in circadian genes. Chronobiol Int 2017; 35:511-532. [DOI: 10.1080/07420528.2017.1417314] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Arcady A. Putilov
- Research Group for Math-Modeling of Biomedical Systems, the Research Institute for Molecular Biology and Biophysics, Novosibirsk, Russia
| | - Vladimir B. Dorokhov
- Laboratory of Sleep/Wake Neurobiology, The Institute of Higher Nervous Activity and Neurophysiology of the Russian Academy of Sciences, Moscow, Russia
| | - Michael G. Poluektov
- Department of Nervous Diseases, Institute of Professional Education, I.M. Sechenov 1-st Moscow State Medical University, Moscow, Russia
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23
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Putilov AA, Nechunaev VV, Ivanov ID, Popov AV, Vavilin VA. Introversion and a single nucleotide polymorphism in PER3 gene: demure female students prevail among carriers of the rare allele. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2017.1319648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Arcady A. Putilov
- Research Group for Math-Modeling of Biomedical Systems, The Research Institute for Molecular Biology and Biophysics, Novosibirsk, Russia
| | - Victor V. Nechunaev
- Chair of Personality Psychology, The Novosibirsk State University, Novosibirsk, Russia
- Chair of Social Work, The Novosibirsk State Pedagogical University, Novosibirsk, Russia
| | - Igor D. Ivanov
- Laboratory of Drug Metabolism and Pharmacokinetics, The Research Institute for Molecular Biology and Biophysics, Novosibirsk, Russia
| | - Alexey V. Popov
- Laboratory of Drug Metabolism and Pharmacokinetics, The Research Institute for Molecular Biology and Biophysics, Novosibirsk, Russia
| | - Valentin A. Vavilin
- Laboratory of Drug Metabolism and Pharmacokinetics, The Research Institute for Molecular Biology and Biophysics, Novosibirsk, Russia
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24
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Valenzuela FJ, Vera J, Venegas C, Muñoz S, Oyarce S, Muñoz K, Lagunas C. Evidences of Polymorphism Associated with Circadian System and Risk of Pathologies: A Review of the Literature. Int J Endocrinol 2016; 2016:2746909. [PMID: 27313610 PMCID: PMC4893437 DOI: 10.1155/2016/2746909] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/14/2016] [Accepted: 04/19/2016] [Indexed: 12/15/2022] Open
Abstract
The circadian system is a supraphysiological system that modulates different biological functions such as metabolism, sleep-wake, cellular proliferation, and body temperature. Different chronodisruptors have been identified, such as shift work, feeding time, long days, and stress. The environmental changes and our modern lifestyle can alter the circadian system and increase the risk of developing pathologies such as cancer, preeclampsia, diabetes, and mood disorder. This system is organized by transcriptional/tranductional feedback loops of clock genes Clock, Bmal1, Per1-3, and Cry1-2. How molecular components of the clock are able to influence the development of diseases and their risk relation with genetic components of polymorphism of clock genes is unknown. This research describes different genetic variations in the population and how these are associated with risk of cancer, metabolic diseases such as diabetes, obesity, and dyslipidemias, and also mood disorders such as depression, bipolar disease, excessive alcohol intake, and infertility. Finally, these findings will need to be implemented and evaluated at the level of genetic interaction and how the environment factors trigger the expression of these pathologies will be examined.
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Affiliation(s)
- F. J. Valenzuela
- Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
- Group of Biotechnological Sciences, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
- *F. J. Valenzuela:
| | - J. Vera
- Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
- Group of Biotechnological Sciences, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
| | - C. Venegas
- Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
| | - S. Muñoz
- Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
| | - S. Oyarce
- Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
| | - K. Muñoz
- Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
| | - C. Lagunas
- Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, 378000 Chillán, Chile
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25
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Baburski AZ, Sokanovic SJ, Bjelic MM, Radovic SM, Andric SA, Kostic TS. Circadian rhythm of the Leydig cells endocrine function is attenuated during aging. Exp Gerontol 2016; 73:5-13. [DOI: 10.1016/j.exger.2015.11.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 10/11/2015] [Accepted: 11/03/2015] [Indexed: 12/24/2022]
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26
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Baburski AZ, Sokanovic SJ, Janjic MM, Stojkov-Mimic NJ, Bjelic MM, Andric SA, Kostic TS. Melatonin replacement restores the circadian behavior in adult rat Leydig cells after pinealectomy. Mol Cell Endocrinol 2015; 413:26-35. [PMID: 26116827 DOI: 10.1016/j.mce.2015.05.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 05/27/2015] [Accepted: 05/27/2015] [Indexed: 12/13/2022]
Abstract
Melatonin actions on oscillators in reproductive organs are poorly understood. Here we analyzed melatonin effects on rhythmic expression of clock and steroidogenesis-related genes in adult rat Leydig cells (LCs). The effect of melatonin was tested both in vivo using pinealectomized and melatonin-substituted rats and in vitro on isolated LCs. Data revealed 24-h-rhythmic expression of clock genes (Bmal1, Per1,2,3, Rev-erba,b, Rorb), steroidogenic genes (Star, Cyp11a1, Cyp17a1), and genes of steroidogenic regulators (positive-Nur77, negative-Arr19). Pinealectomy increased 24-h-oscillations of serum testosterone and LC's cAMP levels, expression of Insl3, Per1, Star/StAR, Hsd3b1/2, Nur77, decreased Arr19 and canceled Per2 oscillatory expression pattern. At hypothalamic-pituitary level, pinealectomy increased mesor of Gnrh, Lhb and rhythm robustness of Mntr1a expression. All parameters disturbed were restored by melatonin-replacement. In vitro studies did not confirm direct melatonin effects on neither clock nor steroidogenic genes. Accordingly, melatonin influence 24-h-rhythmic LC-function likely through hypothalamic-pituitary axis and consequently cAMP-signaling in LCs.
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Affiliation(s)
- Aleksandar Z Baburski
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Srdjan J Sokanovic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Marija M Janjic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Natasa J Stojkov-Mimic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Maja M Bjelic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Silvana A Andric
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia
| | - Tatjana S Kostic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia.
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27
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Cheng S, Liang X, Wang Y, Jiang Z, Liu Y, Hou W, Li S, Zhang J, Wang Z. The circadian Clock gene regulates acrosin activity of sperm through serine protease inhibitor A3K. Exp Biol Med (Maywood) 2015; 241:205-15. [PMID: 26264441 DOI: 10.1177/1535370215597199] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 06/04/2015] [Indexed: 12/23/2022] Open
Abstract
Our previous study found that CLOCK knockdown in the testes of male mice led to a reduced fertility, which might be associated with the lower acrosin activity. In this present study, we examined the differential expression in proteins of CLOCK knockdown sperm. Clock gene expression was knocked down in cells to confirm those differentially expressions and serine protease inhibitor SERPINA3K was identified as a potential target. The up-regulated SERPINA3K revealed an inverse relationship with Clock knockdown. Direct treatment of normal sperm with recombinant SERPINA3K protein inhibited the acrosin activity and reduced in vitro fertilization rate. The luciferase reporter gene assay showed that the down-regulated of Clock gene could activate the Serpina3k promoter, but this activation was not affected by the mutation of E-box core sequence. Co-IP demonstrated a natural interaction between SERPIAN3K and RORs (α and β). Taken together, these results demonstrated that SERPINA3K is involved in the Clock gene-mediated male fertility by regulating acrosin activity and provide the first evidence that SERPINA3K could be regulated by Clock gene via retinoic acid-related orphan receptor response elements.
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Affiliation(s)
- Shuting Cheng
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
| | - Xin Liang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China Reproductive Medical Center of The Second Affiliated Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu 610041, PR China
| | - Yuhui Wang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
| | - Zhou Jiang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
| | - Yanyou Liu
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
| | - Wang Hou
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
| | - Shiping Li
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
| | - Jing Zhang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China Department of Microbiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
| | - Zhengrong Wang
- Health Ministry Key Laboratory of Chronobiology, College of Basic Medicine and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
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28
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Ramasamy R, Bakırcıoğlu ME, Cengiz C, Karaca E, Scovell J, Jhangiani SN, Akdemir ZC, Bainbridge M, Yu Y, Huff C, Gibbs RA, Lupski JR, Lamb DJ. Whole-exome sequencing identifies novel homozygous mutation in NPAS2 in family with nonobstructive azoospermia. Fertil Steril 2015; 104:286-91. [PMID: 25956372 DOI: 10.1016/j.fertnstert.2015.04.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/28/2015] [Accepted: 04/01/2015] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To investigate the genetic cause of nonobstructive azoospermia (NOA) in a consanguineous Turkish family through homozygosity mapping followed by targeted exon/whole-exome sequencing to identify genetic variations. DESIGN Whole-exome sequencing (WES). SETTING Research laboratory. PATIENT(S) Two siblings in a consanguineous family with NOA. INTERVENTION(S) Validating all variants passing filter criteria with Sanger sequencing to confirm familial segregation and absence in the control population. MAIN OUTCOME MEASURE(S) Discovery of a mutation that could potentially cause NOA. RESULT(S) A novel nonsynonymous mutation in the neuronal PAS-2 domain (NPAS2) was identified in a consanguineous family from Turkey. This mutation in exon 14 (chr2: 101592000 C>G) of NPAS2 is likely a disease-causing mutation as it is predicted to be damaging, it is a novel variant, and it segregates with the disease. Family segregation of the variants showed the presence of the homozygous mutation in the three brothers with NOA and a heterozygous mutation in the mother as well as one brother and one sister who were both fertile. The mutation is not found in the single-nucleotide polymorphism database, the 1000 Genomes Project, the Baylor College of Medicine cohort of 500 Turkish patients (not a population-specific polymorphism), or the matching 50 fertile controls. CONCLUSION(S) With the use of WES we identified a novel homozygous mutation in NPAS2 as a likely disease-causing variant in a Turkish family diagnosed with NOA. Our data reinforce the clinical role of WES in the molecular diagnosis of highly heterogeneous genetic diseases for which conventional genetic approaches have previously failed to find a molecular diagnosis.
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Affiliation(s)
- Ranjith Ramasamy
- Scott Department of Urology, Baylor College of Medicine, Houston, Texas; Center for Reproductive Medicine, Baylor College of Medicine, Houston, Texas
| | | | - Cenk Cengiz
- Scott Department of Urology, Baylor College of Medicine, Houston, Texas; Center for Reproductive Medicine, Baylor College of Medicine, Houston, Texas
| | - Ender Karaca
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Jason Scovell
- Scott Department of Urology, Baylor College of Medicine, Houston, Texas
| | - Shalini N Jhangiani
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Zeynep C Akdemir
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | | | - Yao Yu
- Department of Epidemiology, MD Anderson Cancer Center, University of Texas, Houston, Texas
| | - Chad Huff
- Department of Epidemiology, MD Anderson Cancer Center, University of Texas, Houston, Texas
| | - Richard A Gibbs
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas; Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas
| | - James R Lupski
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas; Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas; Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Dolores J Lamb
- Scott Department of Urology, Baylor College of Medicine, Houston, Texas; Center for Reproductive Medicine, Baylor College of Medicine, Houston, Texas.
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29
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Kumar S, Deb R, Singh U, Ganguly I, Mandal DK, Tyagi S, Kumar M, Sengar G, Sharma S, Singh R, Singh R. Bovine Circadian Locomotor Output Cycles Kaput (CLOCK) and Clusterin (CLU) mRNA Quantitation in Ejaculated Crossbred Bull Spermatozoa. Reprod Domest Anim 2015; 50:505-9. [PMID: 25845404 DOI: 10.1111/rda.12522] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 03/17/2015] [Indexed: 12/22/2022]
Abstract
Mammalian circadian locomotor output cycles kaput (CLOCK) gene encodes a transcription factor that affects both the persistence and the period of circadian rhythms. Earlier reports suggested that CLOCK gene might be associated with male infertility in human. Present investigation, for the first time, reports that CLOCK gene expresses differentially between good and poor quality crossbred bull semen. The relative expression of CLOCK was significantly (p < 0.05) higher among good quality bull semen than motility-impaired ones. Clusterins (CLU) are series of genes associated with a variety of physiological activities including spermatogenesis, apoptosis and degenerative disease conditions. In the present context, we also investigated that the expression of CLU gene was significantly (p < 0.05) higher among motility-impaired crossbred bull semen compared to the good quality one.
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Affiliation(s)
- S Kumar
- Indian Council of Agricultural Research- Central Institute for Research on Cattle, Meerut, India
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