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Zhong Y, Deng H, Zhao J, Luo G, Li H. Effects of acetate-producing Blautia wexlerae on oxidative stress and NLRP3 inflammasome in obesity-associated male infertility. Med Microbiol Immunol 2024; 213:11. [PMID: 38940844 DOI: 10.1007/s00430-024-00796-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 06/22/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Obesity-associated male infertility is a common complication of obesity and has been increasing in prevalence. Blautia wexlerae has modulation effects on obesity. However, the action of B. wexlerae on obesity-associated male infertility is unclear. The nod-like receptor protein 3 (NLRP3) inflammasome has become a major target for addressing many diseases, including obesity-associated male infertility. This study aims to investigate the action of B. wexlerae on obesity-associated male infertility and the influence of B. wexlerae on NLRP3 inflammasome. MATERIALS AND METHODS The fecal samples were collected from 60 infertile men with or without obesity and 30 healthy men. The obesity mice model was established through high-fat diet (HFD) induction. The mating assays evaluated the male infertility of obese mice. A mouse-derived spermatogonia (GC-1 spg) cell viability was detected using the Cell Counting Kit-8 assay. The reactive oxygen species (ROS) were assessed using flow cytometry. Furthermore, immunofluorescence, enzyme-linked immunosorbent assay, and western blotting were applied to measure the gene expressions. RESULTS Blautia wexlerae was decreased and negatively correlated with interleukin-1 beta (IL-1β) or IL-18 levels in infertile men with obesity. On the other hand, B. wexlerae improved the mating capability of obese male mice and suppressed oxidative stress and NLRP3 inflammasome via the activation of the acetate receptor. Furthermore, sodium acetate regulated oxidative stress and NLRP3 inflammasome via the activation of the acetate receptor in GC-1 spg cells in vitro. CONCLUSION The administration of Blautia wexlerae improved obesity-associated male infertility and regulated oxidative stress and NLRP3 inflammasome activities. In general, its administration may be an effective strategy for the treatment of obesity-associated male infertility.
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Affiliation(s)
- Yucheng Zhong
- Assisted Reproductive Technology Center, Foshan Women and Children Hospital, No.11 Renmin West Road, Chancheng District, Foshan, 528000, China
| | - Hao Deng
- Assisted Reproductive Technology Center, Foshan Women and Children Hospital, No.11 Renmin West Road, Chancheng District, Foshan, 528000, China
| | - Jun Zhao
- Assisted Reproductive Technology Center, Foshan Women and Children Hospital, No.11 Renmin West Road, Chancheng District, Foshan, 528000, China
| | - Guoqun Luo
- Assisted Reproductive Technology Center, Foshan Women and Children Hospital, No.11 Renmin West Road, Chancheng District, Foshan, 528000, China.
| | - Huan Li
- Assisted Reproductive Technology Center, Foshan Women and Children Hospital, No.11 Renmin West Road, Chancheng District, Foshan, 528000, China.
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Jia ZC, Liu SJ, Chen TF, Shi ZZ, Li XL, Gao ZW, Zhang Q, Zhong CF. Chlorogenic acid can improve spermatogenic dysfunction in rats with varicocele by regulating mitochondrial homeostasis and inhibiting the activation of NLRP3 inflammasomes by oxidative mitochondrial DNA and cGAS/STING pathway. Bioorg Chem 2024; 150:107571. [PMID: 38936048 DOI: 10.1016/j.bioorg.2024.107571] [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: 04/17/2024] [Revised: 06/08/2024] [Accepted: 06/16/2024] [Indexed: 06/29/2024]
Abstract
In recent years, Varicocele (VC) has been recognized as a common cause of male infertility that can be treated by surgery or drugs. How to reduce the damage of VC to testicular spermatogenic function has attracted extensive attention in recent years. Among them, overexpressed ROS and high levels of inflammation may play a key role in VC-induced testicular damage. As the key mediated innate immune pathways, cGAS-STING shaft under pathological conditions, such as in cell and tissue damage stress can be cytoplasmic DNA activation, induce the activation of NLRP3 inflammatory corpuscle, triggering downstream of the inflammatory cascade reaction. Chlorogenic acid (CGA), as a natural compound from a wide range of sources, has strong anti-inflammatory and antioxidant activities, and is a potential effective drug for the treatment of varicocele infertility. The aim of this study is to investigate the role of CGA in the spermatogenic dysfunction of the rat testis induced by VC and the potential mechanisms. The results of this study have shown that CGA gavage treatment ameliorated the pathological damage of seminiferous tubules, increased the number of sperm in the lumen, and increased the expression levels of Occludin and ZO-1, which indicated the therapeutic effect of CGA on spermatogenic dysfunction in the testis of VC rats. Meanwhile, the damage of mitochondrial structure was alleviated and the expression levels of ROS, NLRP3 and pro-inflammatory cytokines (IL-1β, IL-6, IL-18) were significantly reduced in the testicular tissues of model rats after CGA treatment. In addition, we demonstrated for the first time the high expression status of cGAS and STING in testicular tissues of VC model rats, and this was ameliorated to varying degrees after CGA treatment. In conclusion, this study suggests that CGA can improve the spermatogenic function of the testis by reducing mitochondrial damage and inhibiting the activation of the cGAS-STING axis, inhibiting the activation of the NLRP3 inflammasome, and improving the inflammatory damage of the testis, highlighting the potential of CGA as a therapeutic agent for varicocele infertility.
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Affiliation(s)
- Zhi-Chao Jia
- Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250000, China
| | - Sheng-Jing Liu
- Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Teng-Fei Chen
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250000, China
| | - Zhuo-Zhuo Shi
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250000, China
| | - Xiao-Lin Li
- Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250000, China
| | - Zhao-Wang Gao
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250000, China
| | - Qian Zhang
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250000, China.
| | - Chong-Fu Zhong
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong, Jinan 250000, China.
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Venditti M, Romano MZ, Boccella S, Haddadi A, Biasi A, Maione S, Minucci S. Type 1 diabetes impairs the activity of rat testicular somatic and germ cells through NRF2/NLRP3 pathway-mediated oxidative stress. Front Endocrinol (Lausanne) 2024; 15:1399256. [PMID: 38818504 PMCID: PMC11137174 DOI: 10.3389/fendo.2024.1399256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/26/2024] [Indexed: 06/01/2024] Open
Abstract
Background It is well known that metabolic disorders, including type 1 diabetes (T1D), are often associated with reduced male fertility, mainly increasing oxidative stress and impairing the hypothalamus-pituitary-testis (HPT) axis, with consequently altered spermatogenesis and reduced sperm parameters. Herein, using a rat model of T1D obtained by treatment with streptozotocin (STZ), we analyzed several parameters of testicular activity. Methods A total of 10 adult male Wistar rats were divided into two groups of five: control and T1D, obtained with a single intraperitoneal injection of STZ. After 3 months, the rats were anesthetized and sacrificed; one testis was stored at -80°C for biochemical analysis, and the other was fixed for histological and immunofluorescence analysis. Results The data confirmed that T1D induced oxidative stress and, consequently, alterations in both testicular somatic and germ cells. This aspect was highlighted by enhanced apoptosis, altered steroidogenesis and Leydig cell maturity, and impaired spermatogenesis. In addition, the blood-testis barrier integrity was compromised, as shown by the reduced levels of structural proteins (N-cadherin, ZO-1, occludin, connexin 43, and VANGL2) and the phosphorylation status of regulative kinases (Src and FAK). Mechanistically, the dysregulation of the SIRT1/NRF2/MAPKs signaling pathways was proven, particularly the reduced nuclear translocation of NRF2, affecting its ability to induce the transcription of genes encoding for antioxidant enzymes. Finally, the stimulation of testicular inflammation and pyroptosis was also confirmed, as highlighted by the increased levels of some markers, such as NF-κB and NLRP3. Conclusion The combined data allowed us to confirm that T1D has detrimental effects on rat testicular activity. Moreover, a better comprehension of the molecular mechanisms underlying the association between metabolic disorders and male fertility could help to identify novel targets to prevent and treat fertility disorders related to T1D.
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Affiliation(s)
- Massimo Venditti
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania “Luigi Vanvitelli”, Napoli, Italy
| | - Maria Zelinda Romano
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania “Luigi Vanvitelli”, Napoli, Italy
| | - Serena Boccella
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania “Luigi Vanvitelli”, Napoli, Italy
| | - Asma Haddadi
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-Ressourcés Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisia
| | - Alessandra Biasi
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania “Luigi Vanvitelli”, Napoli, Italy
| | - Sabatino Maione
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania “Luigi Vanvitelli”, Napoli, Italy
| | - Sergio Minucci
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania “Luigi Vanvitelli”, Napoli, Italy
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Hu Y, Dai S, Zhao L, Zhao L. Research progress on the improvement of cardiovascular diseases through the autonomic nervous system regulation of the NLRP3 inflammasome pathway. Front Cardiovasc Med 2024; 11:1369343. [PMID: 38650918 PMCID: PMC11034522 DOI: 10.3389/fcvm.2024.1369343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/28/2024] [Indexed: 04/25/2024] Open
Abstract
Cardiovascular disease stands as a leading global cause of mortality. Nucleotide-binding Oligomerization Domain-like Receptor Protein 3 (NLRP3) inflammasome is widely acknowledged as pivotal factor in specific cardiovascular disease progression, such as myocardial infarction, heart failure. Recent investigations underscore a close interconnection between autonomic nervous system (ANS) dysfunction and cardiac inflammation. It has been substantiated that sympathetic nervous system activation and vagus nerve stimulation (VNS) assumes critical roles withinNLRP3 inflammasome pathway regulation, thereby contributing to the amelioration of cardiac injury and enhancement of prognosis in heart diseases. This article reviews the nexus between NLRP3 inflammasome and cardiovascular disorders, elucidating the modulatory functions of the sympathetic and vagus nerves within the ANS with regard to NLRP3 inflammasome. Furthermore, it delves into the potential therapeutic utility of NLRP3 inflammasome to be targeted by VNS. This review serves as a valuable reference for further exploration into the potential mechanisms underlying VNS in the modulation of NLRP3 inflammasome.
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Affiliation(s)
| | | | - Lulu Zhao
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Ling Zhao
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
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Mu Y, Luo LB, Wu SJ, Gao Y, Qin XL, Zhao J, Liu Q, Yang J. Bezafibrate alleviates diabetes-induced spermatogenesis dysfunction by inhibiting inflammation and oxidative stress. Heliyon 2024; 10:e28284. [PMID: 38533024 PMCID: PMC10963653 DOI: 10.1016/j.heliyon.2024.e28284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024] Open
Abstract
The metabolic disorders caused by diabetes can lead to various complications, including male spermatogenesis dysfunction. Exploring effective therapeutics that attenuate diabetes mellitus (DM)-induced male subfertility is of great importance. Pharmaceuticals targeting PPARα activation such as bezafibrate have been regarded as an important strategy for patients with diabetes. In this study, we use streptozocin (STZ) injection to establish a type 1 DM mice model and use bezafibrate to treat DM mice and evaluate the effects of bezafibrate on the spermatogenic function of the DM male mice. Bezafibrate treatment exhibited protective effects on DM-induced spermatogenesis deficiency, as reflected by increased testis weight, improved histological morphology of testis, elevated sperm parameters, increased serum testosterone concentration as well as increased mRNA levels of steroidogenesis enzymes. Meanwhile, testicular cell apoptosis, inflammation accumulation and oxidative stress status were also shown to be alleviated by bezafibrate compared with the DM group. In vivo and in vitro studies, PPARα specific inhibitor and PPARα knockout mice were further used to investigate the role of PPARα in the protective effects of bezafibrate on DM-induced spermatogenesis dysfunction. Our results indicated that the protection of bezafibrate on DM-induced spermatogenesis deficiency was abrogated by PPARα inhibition or deletion. Our study suggested that bezafibrate administration could ameliorate DM-induced spermatogenesis dysfunction and may represent a novel practical strategy for male infertility.
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Affiliation(s)
- Yang Mu
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ling-Bo Luo
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Shu-juan Wu
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yue Gao
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xiao-lin Qin
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jing Zhao
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Qian Liu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jing Yang
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
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Wu Z, Zhang T, Ma X, Guo S, Zhou Q, Zahoor A, Deng G. Recent advances in anti-inflammatory active components and action mechanisms of natural medicines. Inflammopharmacology 2023; 31:2901-2937. [PMID: 37947913 DOI: 10.1007/s10787-023-01369-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 09/16/2023] [Indexed: 11/12/2023]
Abstract
Inflammation is a series of reactions caused by the body's resistance to external biological stimuli. Inflammation affects the occurrence and development of many diseases. Anti-inflammatory drugs have been used widely to treat inflammatory diseases, but long-term use can cause toxic side-effects and affect human functions. As immunomodulators with long-term conditioning effects and no drug residues, natural products are being investigated increasingly for the treatment of inflammatory diseases. In this review, we focus on the inflammatory process and cellular mechanisms in the development of diseases such as inflammatory bowel disease, atherosclerosis, and coronavirus disease-2019. Also, we focus on three signaling pathways (Nuclear factor-kappa B, p38 mitogen-activated protein kinase, Janus kinase/signal transducer and activator of transcription-3) to explain the anti-inflammatory effect of natural products. In addition, we also classified common natural products based on secondary metabolites and explained the association between current bidirectional prediction progress of natural product targets and inflammatory diseases.
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Affiliation(s)
- Zhimin Wu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Tao Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xiaofei Ma
- College of Veterinary Medicine, Gansu Agriculture University, Lanzhou, China
| | - Shuai Guo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Qingqing Zhou
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Arshad Zahoor
- College of Veterinary Sciences, The University of Agriculture Peshawar, Peshawar, Pakistan
| | - Ganzhen Deng
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.
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Cheng X, Zhao H, Wen X, Li G, Guo S, Zhang D. NLRP3-inflammasome inhibition by MCC950 attenuates cardiac and pulmonary artery remodelling in heart failure with preserved ejection fraction. Life Sci 2023; 333:122185. [PMID: 37858713 DOI: 10.1016/j.lfs.2023.122185] [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: 08/08/2023] [Revised: 10/03/2023] [Accepted: 10/15/2023] [Indexed: 10/21/2023]
Abstract
AIMS The purpose of this study was to evaluate the role of the NLRP3-inflammasome in heart failure with preserved ejection fraction (HFpEF). MAIN METHODS Serum inflammatory cytokines were detected in patients with heart failure. Correlation analysis was performed to investigate the relationship between serum inflammatory cytokines and left ventricular diastolic function. A 'two-hit' (metabolic stress and mechanical stress) mouse model of HFpEF was established. Furthermore, MCC950 was used to determine the role of NLRP3-inflammasome inhibition in cardiac and pulmonary artery remodelling in HFpEF mice. KEY FINDINGS Compared with heart failure patients with reduced ejection fraction, patients with HFpEF have significantly elevated serum inflammatory cytokine levels. Serum NLRP3 and interleukin-1β levels were positively correlated with the diastolic function of HFpEF. In the HFpEF mouse model, the inhibition of the NLRP3-inflammasome by MCC950 improved exercise intolerance, glucose intolerance, and left ventricular diastolic function, but had no significant effect on systolic function. Meanwhile, MCC950 attenuated the release of inflammatory cytokines, cardiomyocyte hypertrophy and cardiac fibrosis. Mechanistically, the potential protective effects of MCC950 are achieved by inhibiting activation of the NLRP3-IL-1β pathway and cascade expansion of downstream inflammatory cytokines. Additionally, the inhibition of NLRP3-inflammasome by MCC950 reduced pulmonary artery pressure and improved pulmonary artery remodelling in HFpEF. SIGNIFICANCE The NLRP3-inflammasome plays a considerable role in inflammation and cardiac and pulmonary artery remodelling in HFpEF by activating the cascade reaction of inflammatory cytokines. This study is the first to comprehensively elucidate the role of the NLRP3-inflammasome in HFpEF, and will provide reference for future study.
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Affiliation(s)
- Xiaocheng Cheng
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Hanru Zhao
- Department of Cardiology, Affiliated Banan Hospital of Chongqing Medical University, Chongqing, China
| | - Xuesong Wen
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Guoxing Li
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Shuliang Guo
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Dongying Zhang
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Wang J, Zhang S, Hu L, Wang Y, Liu K, Le J, Tan Y, Li T, Xue H, Wei Y, Zhong O, He J, Zi D, Lei X, Deng R, Luo Y, Tang M, Su M, Cao Y, Liu Q, Tang Z, Lei X. Pyrroloquinoline quinone inhibits PCSK9-NLRP3 mediated pyroptosis of Leydig cells in obese mice. Cell Death Dis 2023; 14:723. [PMID: 37935689 PMCID: PMC10630350 DOI: 10.1038/s41419-023-06162-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 08/25/2023] [Accepted: 09/19/2023] [Indexed: 11/09/2023]
Abstract
Abnormal lipid metabolism and chronic low-grade inflammation are the main traits of obesity. Especially, the molecular mechanism of concomitant deficiency in steroidogenesis-associated enzymes related to testosterone (T) synthesis of obesity dominated a decline in male fertility is still poorly understood. Here, we found that in vivo, supplementation of pyrroloquinoline quinone (PQQ) efficaciously ameliorated the abnormal lipid metabolism and testicular spermatogenic function from high-fat-diet (HFD)-induced obese mice. Moreover, the transcriptome analysis of the liver and testicular showed that PQQ supplementation not only inhibited the high expression of proprotein convertase subtilisin/Kexin type 9 (PCSK9) but also weakened the NOD-like receptor family pyrin domain containing 3 (NLRP3)-mediated pyroptosis, which both played a negative role in T synthesis of Leydig Cells (LCs). Eventually, the function and the pyroptosis of LCs cultured with palmitic acid in vitro were simultaneously benefited by suppressing the expression of NLRP3 or PCSK9 respectively, as well the parallel effects of PQQ were affirmed. Collectively, our data revealed that PQQ supplementation is a feasible approach to protect T synthesis from PCSK9-NLRP3 crosstalk-induced LCs' pyroptosis in obese men.
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Affiliation(s)
- Jinyuan Wang
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Shun Zhang
- Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, China
| | - Linlin Hu
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Yan Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, China
| | - Ke Liu
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Jianghua Le
- Department of Reproductive Medical Center, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, China
| | - Yongpeng Tan
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Tianlong Li
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Haoxuan Xue
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Yanhong Wei
- Reproductive Medicine Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Ou Zhong
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Junhui He
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Dan Zi
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Xin Lei
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Renhe Deng
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Yafei Luo
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Masong Tang
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Mingxuan Su
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Yichang Cao
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Qingyou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, China
| | - Zhihan Tang
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China.
| | - Xiaocan Lei
- Clinical Anatomy and Reproductive Medicine Application Institute, Department of Histology and Embryology, Postdoctoral Station for Basic Medicine, Hengyang Medical School, University of South China, Hengyang, 421001, China.
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Peel A, Saini A, Deluao JC, McPherson NO. Sperm DNA damage: The possible link between obesity and male infertility, an update of the current literature. Andrology 2023; 11:1635-1652. [PMID: 36789664 DOI: 10.1111/andr.13409] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/13/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023]
Abstract
Obesity prevalence worldwide is increasing significantly. Whilst maternal obesity has clear detrimental impacts on fertility, pregnancy and foetal outcomes, more recently there has been an increasing focus on the role of paternal obesity in human fertility. Recent meta-analyses have indicated that obesity in men negatively affects basic sperm parameters such as sperm count, concentration and motility, increases the incidence of infertility and reduces the chances of conception. Sperm DNA damage, typically characterised by DNA strand breaks and oxidation of DNA nucleotides, is a specialised marker of sperm quality that has been independently associated with recurrent miscarriage, reduced assisted reproduction success and increased mutational loads in subsequent offspring. Whilst, there are still conflicting data in humans as to the association of obesity in men with sperm DNA damage, evidence from rodent models is clear, indicating that male obesity increases sperm DNA damage. Human data are often conflicting because of the large heterogeneity amongst studies, the use of body mass index as the indicator of obesity and the methods used for detection of sperm DNA damage. Furthermore, comorbidities of obesity (i.e., heat stress, adipokines, insulin resistance, changes in lipids, hypogonadism and obstructive sleep apnoea) are also independently associated with increased sperm DNA damage that is not always modified in men with obesity, and as such may provide a causative link to the discrepancies amongst human studies. In this review, we provide an update on the literature regarding the associations between obesity in men and fertility, basic sperm parameters and sperm DNA damage. We further discuss potential reasons for the discrepancies in the literature and outline possible direct and indirect mechanisms of increased sperm DNA damage resulting from obesity. Finally, we summarise intergenerational obesity through the paternal linage and how sperm DNA damage may contribute to the transmission.
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Affiliation(s)
- Andrew Peel
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, South Australia, Australia
| | - Anmol Saini
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, South Australia, Australia
| | - Joshua C Deluao
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, South Australia, Australia
| | - Nicole O McPherson
- Robinson Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, South Australia, Australia
- Repromed IVF Adelaide, Dulwich, South Australia, Australia
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Almarzouq D, Al-Maghrebi M. NADPH Oxidase-Mediated Testicular Oxidative Imbalance Regulates the TXNIP/NLRP3 Inflammasome Axis Activation after Ischemia Reperfusion Injury. Antioxidants (Basel) 2023; 12:antiox12010145. [PMID: 36671008 PMCID: PMC9855003 DOI: 10.3390/antiox12010145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/23/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Oxidative stress, inflammation and germ cell death are the main characteristics of testicular ischemia reperfusion injury (tIRI), which is considered as the underlying mechanism for testicular torsion and detorsion. The study aimed to examine the effect of tIRI-activated NADPH oxidase (NOX) on the expression of the NLRP3 inflammasome pathway components. Three groups of male Sprague-Dawley rats (n = 12 each) were studied: sham, unilateral tIRI only and tIRI treated with apocynin, a NOX-specific inhibitor. The tIRI rat model was subjected to 1 h of ischemia followed by 4 h of reperfusion. H&E staining, real time PCR, biochemical assays, and Western blot were utilized to evaluate spermatogenic damage, gene expression, oxidative stress markers, and NLRP3 pathway components, respectively. As a result of tIRI, decreased total antioxidant capacity and suppressed activities of superoxide dismutase and catalase were associated with spermatogenic arrest. The components of the NLRP3 inflammasome pathway (TXNIP, NLRP3, ASC, caspase-1, GSDMD, MMP-9) were upregulated transcriptionally and post-transcriptionally during tIRI. In parallel, tissue inflammation was demonstrated by a marked increase in the concentrations of myeloperoxidase, IL-1β, and IL-18. Apocynin treatment prevented testicular oxidative stress and inflammation. Thus, NOX inhibition by apocynin prevented ROS accumulation, proinflammatory cytokine overexpression and NLRP3 inflammasome activation during tIRI.
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Antitoxic Effects of Curcumin against Obesity-Induced Multi-Organs' Biochemical and Histopathological Abnormalities in an Animal Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:9707278. [PMID: 36248416 PMCID: PMC9560822 DOI: 10.1155/2022/9707278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 11/07/2022]
Abstract
Background Obesity is a significant public health problem that is characterized by an increase in oxidative stress and enhanced inflammatory responses associated with immune cell invasion of adipose tissues. This study assessed several biochemical abnormalities, apoptosis, oxidative stress status, and associated histological changes in the liver, duodenum, and heart brought on by high-fat diet-induced obesity in rats. It also assessed the mechanistic benefits of curcumin in reversing these inflammatory, metabolic, and histological impairments. Methods Rats were assigned into three groups each including ten rats: the control group (CD), the high-fat diet group (HFD), and the high-fat diet + curcumin (HFDC) group. Serum glucose, insulin, and triglycerides (TAGs) were observed. In addition, apoptosis (indicated by hepatic DNA fragmentation) and oxidative stress status (indicated by hepatic MPO, GSH, and SOD) were assessed. Histopathological examinations included the GIT (liver and duodenum) and heart in addition to quantitative real-time polymerase chain reaction (qRT-PCR) assays of the adipose tissue genetic expressions for inflammatory signaling pathways (TLR4, IL-6, and TNF-α). Results The overall findings showed that the HFD group exhibited significantly higher levels of glucose, TAGs, and insulin than the control group (P < 0.01). The histological abnormalities of the studied organs in the HFD group were paralleled by these biochemical abnormalities, which were strongly associated with increased apoptosis, increased oxidative stress, and increased expression of the inflammatory signaling markers. There were significant improvements in the HFDC group in terms of biochemical, inflammatory, and histological investigations. Conclusions This study's findings concluded that obesity is significantly associated with biochemical and microscopic alterations in many organs. Curcumin exerted potent antitoxic, antioxidant, tissue-protective, and antiobesity effects. Curcumin is recommended to be added to various dietary regimens to prevent or delay the organs' dysfunction among obese people.
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Denizli M, Capitano ML, Kua KL. Maternal obesity and the impact of associated early-life inflammation on long-term health of offspring. Front Cell Infect Microbiol 2022; 12:940937. [PMID: 36189369 PMCID: PMC9523142 DOI: 10.3389/fcimb.2022.940937] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 08/23/2022] [Indexed: 12/02/2022] Open
Abstract
The prevalence of obesity is increasingly common in the United States, with ~25% of women of reproductive age being overweight or obese. Metaflammation, a chronic low grade inflammatory state caused by altered metabolism, is often present in pregnancies complicated by obesity. As a result, the fetuses of mothers who are obese are exposed to an in-utero environment that has altered nutrients and cytokines. Notably, both human and preclinical studies have shown that children born to mothers with obesity have higher risks of developing chronic illnesses affecting various organ systems. In this review, the authors sought to present the role of cytokines and inflammation during healthy pregnancy and determine how maternal obesity changes the inflammatory landscape of the mother, leading to fetal reprogramming. Next, the negative long-term impact on offspring’s health in numerous disease contexts, including offspring’s risk of developing neuropsychiatric disorders (autism, attention deficit and hyperactive disorder), metabolic diseases (obesity, type 2 diabetes), atopy, and malignancies will be discussed along with the potential of altered immune/inflammatory status in offspring as a contributor of these diseases. Finally, the authors will list critical knowledge gaps in the field of developmental programming of health and diseases in the context of offspring of mothers with obesity, particularly the understudied role of hematopoietic stem and progenitor cells.
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Affiliation(s)
- Merve Denizli
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Indiana University School of Medicine, Indianapolis IN, United States
| | - Maegan L. Capitano
- Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis IN, United States
| | - Kok Lim Kua
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Indiana University School of Medicine, Indianapolis IN, United States
- *Correspondence: Kok Lim Kua,
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