1
|
Kościuszko M, Buczyńska A, Łuka K, Duraj E, Żuk-Czerniawska K, Adamska A, Siewko K, Wiatr A, Krętowski AJ, Popławska-Kita A. Assessing the impact of body composition, metabolic and oxidative stress parameters on insulin resistance as a prognostic marker for reactive hypoglycemia: a cross-sectional study in overweight, obese, and normal weight individuals. Front Pharmacol 2024; 15:1329802. [PMID: 38655176 PMCID: PMC11035812 DOI: 10.3389/fphar.2024.1329802] [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: 10/29/2023] [Accepted: 03/27/2024] [Indexed: 04/26/2024] Open
Abstract
Oxidative stress (OS) plays a pivotal role in the pathogenesis of insulin resistance (IR), particularly in its association with obesity. This study evaluate both the diagnostic and clinical significance of assessing oxidative status in patients affected by overweight and obesity displaying IR, especially with reactive hypoglycemic episodes (RH). A comprehensive examination of OS biomarkers was carried out, encompassing measurements of total oxidative capacity (TOC) and total antioxidant capacity (TAC). Our analysis results reveal noteworthy connections between OS levels and the severity of IR in overweight and obese patients. Moreover, in the study, we demonstrated the diagnostic utility of serum concentrations of TAC and TOC as indicators of the risk of RH, the occurrence of which, even at the stage of overweight, may be associated with increased OS and further development of obesity. Our findings imply that the evaluation of oxidative status could serve as a crucial diagnostic and prognostic tool for patients observed with IR and overweight and obesity. In conclusion, our study underscores the potential utility of assessing oxidative status in the context of IR and highlights the possibility of identifying novel therapeutic targets for the treatment of overweight and obese patients.
Collapse
Affiliation(s)
- Maria Kościuszko
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
| | - Angelika Buczyńska
- Clinical Research Center, Medical University of Bialystok, Bialystok, Poland
| | - Katarzyna Łuka
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
| | - Ewa Duraj
- Department of Periodontal and Oral Mucosa Diseases, Medical University of Bialystok, Bialystok, Poland
| | - Katarzyna Żuk-Czerniawska
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
| | - Agnieszka Adamska
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
| | - Katarzyna Siewko
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
| | - Aleksandra Wiatr
- Clinical Research Center, Medical University of Bialystok, Bialystok, Poland
| | - Adam Jacek Krętowski
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
- Clinical Research Center, Medical University of Bialystok, Bialystok, Poland
| | - Anna Popławska-Kita
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
| |
Collapse
|
2
|
Silvestrini A, Meucci E, Ricerca BM, Mancini A. Total Antioxidant Capacity: Biochemical Aspects and Clinical Significance. Int J Mol Sci 2023; 24:10978. [PMID: 37446156 DOI: 10.3390/ijms241310978] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/10/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Despite the physiological role of oxidant molecules, oxidative stress (OS) could underlie several human diseases. When the levels of antioxidants are too low or too high, OS occurs, leading to damage at the molecular, tissue and cellular levels. Therefore, antioxidant compounds could represent a way to modulate OS and/or to maintain proper redox balance. This review provides an overview of the methods available to assess total antioxidant capacity (TAC) in biological systems to elucidate the correct terminology and the pathophysiological roles. The clinical context is fundamental to obtain a correct interpretation of TAC. Hence, we discuss metabolic syndrome and infertility, two clinical conditions that involve OS, including the potential prognostic role of TAC evaluation in monitoring antioxidant supplementation. This approach would provide more personalised and precise therapy.
Collapse
Affiliation(s)
- Andrea Silvestrini
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli (IRCCS), 00168 Rome, Italy
| | - Elisabetta Meucci
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli (IRCCS), 00168 Rome, Italy
| | - Bianca Maria Ricerca
- Fondazione Policlinico Universitario Agostino Gemelli (IRCCS), 00168 Rome, Italy
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Antonio Mancini
- Fondazione Policlinico Universitario Agostino Gemelli (IRCCS), 00168 Rome, Italy
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| |
Collapse
|
3
|
Lai TCT, Roychoudhury S, Cho CL. Oxidative Stress and Varicocele-Associated Male Infertility. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1358:205-235. [PMID: 35641872 DOI: 10.1007/978-3-030-89340-8_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Despite being regarded as one of the most common causes of male subfertility, the pathophysiology of varicocele remains largely unknown. Recently, oxidative stress (OS) is proposed to be the mediator in how varicocele may negatively impact fertility. The imbalance of reactive oxygen species (ROS) and seminal antioxidants results in damage to sperm DNA and lipid membrane. There is evidence demonstrating higher OS level in men with varicocele which is also positively correlated with clinical grading of varicocele. Moreover, a number of studies have revealed the negative correlation between OS and conventional semen parameters. Furthermore, various interventions have shown their potential in alleviating OS in men with varicocele-associated infertility. Although direct evidence on improving pregnancy rate is not available at the moment, varicocelectomy has demonstrated promising results in relieving OS. Oral antioxidants represent another option with a favourable safety profile. The supplement can be used alone or as adjunct to varicocelectomy. However, most of the studies are hampered by heterogenous dose regime and high-level evidence is lacking.
Collapse
Affiliation(s)
- Terence Chun-Ting Lai
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | | | - Chak-Lam Cho
- S. H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, Hong Kong.
| |
Collapse
|
4
|
Inflammation and Oxidative Stress in Seminal Plasma: Search for Biomarkers in Diagnostic Approach to Male Infertility. J Pers Med 2022; 12:jpm12060857. [PMID: 35743642 PMCID: PMC9224911 DOI: 10.3390/jpm12060857] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 02/04/2023] Open
Abstract
Oxidative and inflammatory damage underlie several conditions related to male infertility, including varicocele. Free light chains of immunoglobulins (FLCs) are considered markers of low-grade inflammation in numerous diseases. Coenzyme Q10 (CoQ10), a lipidic antioxidant and anti-inflammatory compound, is involved in spermatozoa energy metabolism and motility. We aimed to evaluate FLCs’ seminal levels in patients with varicocele in comparison to control subjects and to correlate them with CoQ10 and Total Antioxidant Capacity (TAC) in human semen. Sixty-five patients were enrolled. Semen analysis was performed; patients were divided into three groups: controls, 12 normozoospermic patients, aged 34 (33–41) years; varicocele (VAR), 29 patients, aged 33 (26–37) years; and idiopathic, 24 oligo-, astheno- and oligoasthenozoospermic patients aged 37 (33.5–40.5) years. FLCs (κ and λ) were assayed by turbidimetric method; CoQ10 by HPLC; TAC by spectrophotometric method. λ FLCs showed a trend toward higher levels in VAR vs. controls and the idiopathic group. VAR showed a trend toward lower κ FLCs levels vs. the other two groups. When comparing κ/λ ratio, VAR showed significantly lower levels vs. controls and idiopathic. Moreover, CoQ10 seminal levels showed higher levels in VAR and idiopathic compared to controls. Data reported here confirm lower levels of κ/λ ratio in VAR and suggest a possible application in personalized medicine as clinical biomarkers for male infertility.
Collapse
|
5
|
Mancini A, Bruno C, Vergani E, Guidi F, Angelini F, Meucci E, Silvestrini A. Evaluation of oxidative stress effects on different macromolecules in adult growth hormone deficiency. PLoS One 2020; 15:e0236357. [PMID: 32687509 PMCID: PMC7371168 DOI: 10.1371/journal.pone.0236357] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 07/03/2020] [Indexed: 12/17/2022] Open
Abstract
Adult growth hormone deficiency (GHD) is being increasingly recognized to cause premature mortality exacerbated by oxidative stress. A case-control observational study has been performed with the primary objective of evaluating new parameters of oxidative stress and macromolecular damage in adult GHD subjects: serum nitrotryptophan; Total Antioxidant Capacity expressed as LAG time; urinary hexanoil-lysine; urinary dityrosine and urinary 8-OH-deoxyguanosine. GHD was diagnosed using Growth Hormone-Releasing Hormone 50μg iv+arginine 0,5 g/Kg test, with a peak GH response <9 μg /L when BMI was <30 kg/m2 or <4 μg/L when BMI was >30 kg/m2. Patients affected by adult GHD were divided into three groups, total GHD (n = 26), partial GHD (n = 25), and controls (n = 29). Total Antioxidant Capacity, metabolic and hormonal parameters have been determined in separate plasma samples; nitrotryptophan in serum samples; hexanoil-lysine, dityrosine, 8-OH-deoxyguanosine in urine samples. Assessment of hexanoil-lysine exhibited a trend to increase in comparing total GHD vs partial and controls, although not significant. Values of 8-OH-deoxyguanosine did not significantly differ among the three groups. Significant lower levels of dityrosine in partial GHD vs total and controls were found. No significant difference in nitrotriptophan serum levels was found, while significantly greater values of Total Antioxidant Capacity were showed in total and partial GHD vs controls. Thus, our result confirm that oxidative stress is increased both in partial and total adult GHD. The lack of compensation by antioxidants in total GHD may be connected to the complications associated to this rare disorder.
Collapse
Affiliation(s)
- Antonio Mancini
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario A, Gemelli IRCCS, Rome, Italy
| | - Carmine Bruno
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario A, Gemelli IRCCS, Rome, Italy
| | - Edoardo Vergani
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario A, Gemelli IRCCS, Rome, Italy
| | - Francesco Guidi
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario A, Gemelli IRCCS, Rome, Italy
| | - Flavia Angelini
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario A, Gemelli IRCCS, Rome, Italy
| | - Elisabetta Meucci
- Fondazione Policlinico Universitario A, Gemelli IRCCS, Rome, Italy
- Dipartimento di Scienze biotecnologiche di base, cliniche intensivologiche e peri-operatorie, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Andrea Silvestrini
- Fondazione Policlinico Universitario A, Gemelli IRCCS, Rome, Italy
- Dipartimento di Scienze biotecnologiche di base, cliniche intensivologiche e peri-operatorie, Università Cattolica del Sacro Cuore, Rome, Italy
| |
Collapse
|
6
|
Vergani E, Bruno C, Silvestrini A, Meucci E, Proietti L, Perna A, Tamburrelli FC, Mancini A. Oxidative stress and anabolic hormones in back pain: Current concept and preliminary analysis in male cohort. Orthop Rev (Pavia) 2020; 12:8686. [PMID: 32913614 PMCID: PMC7459380 DOI: 10.4081/or.2020.8686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 01/22/2023] Open
Abstract
Back Pain (BP) is a common medical problem; anabolic hormones, through the modulation of oxidative stress (OS), could influence fracture risk. We evaluated the prevalence of anabolic hormonal deficiencies and their relationship with OS in males with BP, associated or not to nontraumatic fractures. 49 males with BP, from 36 to 80 years, were divided in two groups according to radiological evidence of nontraumatic fractures; group A (n=25): non-fractured; group B (n=24): fractured. A different prevalence of hormonal deficits was observed: 24% of hypotestosteronemia in A, 0% in B; 16% of GHD in A, 29% in B; Total Antioxidant Capacity (TAC) showed a trend toward higher levels in B. In A, despite lower TAC, a significant inverse correlation was present between TAC and IGF-1. A greater prevalence of GHD in patients with vertebral fractures was seen and, in a subgroup, OS could mediate the deleterious effects of hyposecretory GH state.
Collapse
Affiliation(s)
- Edoardo Vergani
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome
| | - Carmine Bruno
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome
| | - Andrea Silvestrini
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome.,Dipartimento di Scienze Biotecnologiche di base, cliniche intensivologiche e peri-operatorie, Università Cattolica del Sacro Cuore, Rome
| | - Elisabetta Meucci
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome.,Dipartimento di Scienze Biotecnologiche di base, cliniche intensivologiche e peri-operatorie, Università Cattolica del Sacro Cuore, Rome
| | - Luca Proietti
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome.,Dipartimento di Scienze geriatriche e ortopediche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Andrea Perna
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome.,Dipartimento di Scienze geriatriche e ortopediche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco Ciro Tamburrelli
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome.,Dipartimento di Scienze geriatriche e ortopediche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Antonio Mancini
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome
| |
Collapse
|
7
|
Fallah M, Askari G, Soleimani A, Feizi A, Asemi Z. Clinical Trial of the Effects of Coenzyme Q10 Supplementation on Biomarkers of Inflammation and Oxidative Stress in Diabetic Hemodialysis Patients. Int J Prev Med 2019; 10:12. [PMID: 30774846 PMCID: PMC6360842 DOI: 10.4103/ijpvm.ijpvm_418_18] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/01/2018] [Indexed: 11/04/2022] Open
Abstract
Background The aim of the study was to determine the effects of coenzyme Q10 (CoQ10) supplementation on biomarkers of inflammation and oxidative stress among diabetic hemodialysis (HD) patients. Methods Sixty diabetic HD patients participated in the randomized, double blind, placebo-controlled clinical trial. They were randomly assigned into two groups to intake either 60 mg CoQ10 supplements (n = 30) or placebo (n = 30) twice a day for 12 weeks. Results After 12 weeks of intervention, CoQ10 supplementation significantly increased total antioxidant (TAC) (54.921 ± 26.437 vs. -126.781 ± 26.437, P < 0.001) and nitric oxide (NO) levels (4.121 ± 1.314 vs. -1.427 ± 1.314, P = 0.006) and decreased C-reactive protein (CRP) (-1.302 ± 0.583 vs. 0.345 ± 0.583, 0.042) levels compared with the placebo. We did not observe any significant effect of CoQ10 supplementation on malondialdehyde (MDA) and glutathione (GSH) levels compared with the placebo. Conclusions Overall, our study showed that CoQ10 supplementation to diabetic HD patients for 12 weeks was associated with increased levels of TAC and NO levels and decreased level of high-sensitivity CRP (hs-CRP) levels, but did not have any beneficial effects on MDA and GSH.
Collapse
Affiliation(s)
- Melika Fallah
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gholamreza Askari
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Alireza Soleimani
- Department of Internal Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Awat Feizi
- Isfahan Endocrine and Metabolism Research Center, Isfahan, Iran.,Department of Biostatistics and Epidemiology, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| |
Collapse
|
8
|
Gul M, Bugday MS, Erel O. Thiol-disulphide homoeostasis as an oxidative stress marker in men with varicocele. Andrologia 2018; 50:e12982. [PMID: 29411889 DOI: 10.1111/and.12982] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2017] [Indexed: 11/29/2022] Open
Abstract
Oxidative stress is the most common factor leading to infertility in men with varicocele. Reactive oxygen species and other markers of oxidative stress are measured to predict the extent of oxidative stress. Thiol groups are important antioxidants and essential molecules protecting organism against the harmful effects of reactive oxygen species. Thiol-disulphide homoeostasis is a unique, easy and new method to demonstrate oxidative stress. The aim of this study was to determine thiol-disulphide homoeostasis as an oxidative stress marker in infertile men with varicocele. The hormonal profile and parameters of thiol-disulphide homoeostasis were studied in 46 infertile men with varicocele, 70 fertile men with varicocele and 37 fertile controls. Infertile men with varicocele had significantly higher disulphide concentrations and disulphide/native thiol, disulphide/total thiol and native/total thiol ratios than those of fertile men with varicocele and fertile controls. According to these results, the blood plasma of patients with varicocele contains excessive oxidative stress, even in men with normospermia, and therefore, thiol-disulphide homoeostasis may be useful as an oxidative stress marker in men with varicocele.
Collapse
Affiliation(s)
- M Gul
- Department of Urology, Van Training and Research Hospital, University of Ministry of Health, Van, Turkey
| | - M S Bugday
- Department of Urology, Van Training and Research Hospital, University of Ministry of Health, Van, Turkey
| | - O Erel
- Department of Clinical Biochemistry, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| |
Collapse
|
9
|
Gosalvez J, Tvrda E, Agarwal A. Free radical and superoxide reactivity detection in semen quality assessment: past, present, and future. J Assist Reprod Genet 2017; 34:697-707. [PMID: 28341974 PMCID: PMC5445049 DOI: 10.1007/s10815-017-0912-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 03/17/2017] [Indexed: 11/30/2022] Open
Abstract
Oxidative stress is a well-established cause of male infertility, with reactive oxygen species (ROS) impairing sperm production, motility, membrane, and DNA integrity. Currently, most clinics do not test infertile patients for the imbalance between ROS generation and the ability of the antioxidants to scavenge them, although there is a clear need for andrology laboratories to be able to identify and/or quantify seminal oxidative stress. As such there is a clinical urgency for an inexpensive and easy-to-perform assay able to identify oxidative stress in semen. The aim of this review is to provide information on the currently available methods to assess and quantify ROS and particularly superoxide in male reproductive cells, tissues, and fluids which may have a significant clinical utility in identifying men with impaired fertility associated with oxidative stress. Through a deeper understanding of oxidative stress and its assessment options, clinical andrology labs may better assist patients to achieve increased rates of fertility and pregnancy.
Collapse
Affiliation(s)
- Jaime Gosalvez
- Department of Biology, Universidad Autonoma de Madrid, Edificio de Biología, Darwin 2, 28049, Madrid, Spain
| | - Eva Tvrda
- Department of Animal Physiology, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic.
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Mail Code X-11, 10681 Carnegie Avenue, Cleveland, OH, 44195, USA
| |
Collapse
|
10
|
The effects of coenzyme Q10 administration on glucose homeostasis parameters, lipid profiles, biomarkers of inflammation and oxidative stress in patients with metabolic syndrome. Eur J Nutr 2015; 55:2357-2364. [PMID: 26385228 DOI: 10.1007/s00394-015-1042-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 09/10/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Limited data are available indicating the effects of coenzyme Q10 (CoQ10) supplementation on metabolic status of patients with metabolic syndrome (MetS). PURPOSE The present study was conducted to determine the effects of CoQ10 administration on glucose homeostasis parameters, lipid profiles, biomarkers of inflammation and oxidative stress among patients with MetS. METHODS This randomized, double-blind, placebo-controlled trial was performed among 60 overweight or obese and type 2 diabetes mellitus patients with coronary heart disease aged 40-85 years old. Participants were randomly allocated into two groups. Group A (n = 30) received 100 mg CoQ10 supplements and group B (n = 30) received placebo for 8 weeks. Fasting blood samples were taken at the beginning of the study and after 8-week intervention to quantify glucose homeostasis parameters, lipid profiles and biomarkers of inflammation and oxidative stress. RESULTS Compared with the placebo, CoQ10 supplementation resulted in a significant reduction in serum insulin levels (-2.1 ± 7.1 vs. +4.1 ± 7.8 µIU/mL, P = 0.002) and homeostasis model of assessment-insulin resistance (-0.7 ± 2.1 vs. +1.0 ± 2.0, P = 0.002) and homeostatic model assessment-beta cell function (-5.9 ± 22.2 vs. +15.9 ± 34.0, P = 0.005). In addition, patients who received CoQ10 supplements had a significant increase in plasma total antioxidant capacity (TAC) concentrations (+26.0 ± 105.0 vs. -162.2 ± 361.8 mmol/L, P = 0.008) compared with the placebo group. However, after adjustment for the baseline levels, age and baseline BMI, the effect on TAC levels (P = 0.08) disappeared. Additionally, compared with the placebo group, a significant positive trends in plasma glutathione (P = 0.06) and a significant reduction in malondialdehyde (P = 0.08) were seen among patients who received CoQ10 supplement. We did not observe any significant changes in fasting plasma glucose, lipid concentrations and inflammatory markers. CONCLUSIONS Overall, daily intake of 100 mg CoQ10 supplements among patients with MetS for 8 weeks had beneficial effects on serum insulin levels, HOMA-IR, HOMA-B and plasma TAC concentrations. CLINICAL TRIAL REGISTRATION NUMBER www.irct.ir : IRCT201502245623N35.
Collapse
|
11
|
Festa R, Giacchi E, Raimondo S, Tiano L, Zuccarelli P, Silvestrini A, Meucci E, Littarru GP, Mancini A. Coenzyme Q10supplementation in infertile men with low-grade varicocele: an open, uncontrolled pilot study. Andrologia 2013; 46:805-7. [DOI: 10.1111/and.12152] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2013] [Indexed: 11/27/2022] Open
Affiliation(s)
- R. Festa
- Department of Molecular and Clinical Sciences; Polytechnic University of Marche; Ancona Italy
| | - E. Giacchi
- Center for Study and Research on Natural Fertility Regulation; Catholic University; Rome Italy
| | - S. Raimondo
- Department of Internal Medicine; Division of Endocrinology; Catholic University; Rome Italy
| | - L. Tiano
- Department of Clinical and Dental Sciences; Polytechnic University of Marche; Ancona Italy
| | - P. Zuccarelli
- Department of Internal Medicine; Division of Endocrinology; Catholic University; Rome Italy
| | - A. Silvestrini
- Institute of Biochemistry and Clinical Biochemistry; Catholic University; Rome Italy
| | - E. Meucci
- Institute of Biochemistry and Clinical Biochemistry; Catholic University; Rome Italy
| | - G. P. Littarru
- Department of Clinical and Dental Sciences; Polytechnic University of Marche; Ancona Italy
| | - A. Mancini
- Department of Internal Medicine; Division of Endocrinology; Catholic University; Rome Italy
| |
Collapse
|
12
|
Hamada A, Esteves SC, Agarwal A. Insight into oxidative stress in varicocele-associated male infertility: part 2. Nat Rev Urol 2012; 10:26-37. [PMID: 23165400 DOI: 10.1038/nrurol.2012.198] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Varicocele, the leading cause of male infertility, can impair spermatogenesis through several pathophysiological mechanisms. Of these, current evidence suggests that oxidative stress is the central element contributing to infertility in men with varicocele, to which the testis responds by way of heat stress, ischaemia or production of vasodilators, such as nitric oxide. Surgical varicocele repair (varicocelectomy) is beneficial not only for alleviating oxidative stress-associated infertility, but also for preventing and protecting against the progressive character of varicocele and its consequent upregulations of systemic oxidative stress. However, antioxidant therapy in infertile men with surgically treated and those with untreated varicocele is poorly studied, and well-designed trials are needed.
Collapse
Affiliation(s)
- Alaa Hamada
- Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | | | | |
Collapse
|
13
|
Biochemical alterations in semen of varicocele patients: a review of the literature. Adv Urol 2011; 2012:903931. [PMID: 21915179 PMCID: PMC3170887 DOI: 10.1155/2012/903931] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 07/08/2011] [Accepted: 07/08/2011] [Indexed: 01/15/2023] Open
Abstract
Oxidative stress is a mechanism underlying different kinds of infertility in human males. However, different results can be observed in relation to the method used for its evaluation. Varicocele patients show a number of biochemical abnormalities, including an altered distribution of coenzyme Q between seminal plasma and sperm cells and also an apparent defect in the utilization of antioxidants. Moreover, an influence of systemic hormones on seminal antioxidant system was observed too. Finally, the effects of surgical treatment on oxidativestress indexes and the possible usefulness of some medical therapies, like coenzyme Q supplementation, are discussed. In conclusion, published data show a role of oxidative stress in varicocele-related male infertility, but at present we do not know the precise molecular mechanisms underlying these phenomena.
Collapse
|