Effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats: An experimental study

Abstract Background: Oxidative stress is a major contributor to diabetes, which can lead to testicular damage and infertility. Objective: This study aimed to compare the effects of metformin as a chemical drug with silymarin as an herbal agent on the sperm parameters and histopathological changes of...

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Main Authors: Bagher Pourheydar, Fatemeh Azarm, Gholamhossein Farjah, Mojtaba Karimipour, Maryam Pourheydar
Format: Article
Language:English
Published: Shahid Sadoughi University of Medical Sciences 2021-12-01
Series:International Journal of Reproductive BioMedicine
Subjects:
Online Access:https://doi.org/10.18502/ijrm.v19i12.10060
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author Bagher Pourheydar
Fatemeh Azarm
Gholamhossein Farjah
Mojtaba Karimipour
Maryam Pourheydar
author_facet Bagher Pourheydar
Fatemeh Azarm
Gholamhossein Farjah
Mojtaba Karimipour
Maryam Pourheydar
author_sort Bagher Pourheydar
collection DOAJ
description Abstract Background: Oxidative stress is a major contributor to diabetes, which can lead to testicular damage and infertility. Objective: This study aimed to compare the effects of metformin as a chemical drug with silymarin as an herbal agent on the sperm parameters and histopathological changes of testes in diabetic rats. Materials and Methods: Thirty-two male Wistar rats (250-270 gr) were randomly divided into four groups: 1) control; 2) diabetic; 3) diabetic+metformin 200 mg/kg; and 4) diabetic+silymarin 100 mg/kg. Daily injections were administered intraperitoneally for 56 days. At the end of the treatment, blood sampling was performed for biochemical assessment. Then, the rats were sacrificed and their left testis and epididymis were cut for sperm analysis as well as histopathology and morphometric evaluation. Results: Diabetes was associated with a reduced sperm count, motility, viability, maturity, and chromatin quality of sperm (p ≤ 0.001). It was also associated with a higher malondialdehide level and lower total antioxidant capacity level of serum in comparison with the control group (p ≤ 0.001). There was a significant difference in the seminiferous tubule diameter, germinal epithelium height, and testicular histopathological alterations in the diabetic rats compared with the control rats (p ≤ 0.001). Treatment with metformin and silymarin improved the above-mentioned parameters and this improvement was more substantial in silymarin-treated animals (p ≤ 0.001). Conclusion: In diabetic rats, metformin and silymarin improved sperm parameters, sperm DNA integrity, seminiferous tubule diameter, germinal epithelium thickness, and testicular histopathological complications; this improvement was more substantial in the silymarin-treated group. So, the findings of this study suggest that silymarin is more effective than metformin in treating diabetic-induced infertility.
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spelling doaj.art-75311888c8424dc79806db8f23d1aa162022-12-22T04:10:06ZengShahid Sadoughi University of Medical SciencesInternational Journal of Reproductive BioMedicine2476-41082476-37722021-12-0119121091110410.18502/ijrm.v19i12.10060ijrm.v19i12.10060Effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats: An experimental studyBagher Pourheydar0Fatemeh Azarm1Gholamhossein Farjah2Mojtaba Karimipour3Maryam Pourheydar4 Department of Anatomical Sciences, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran. Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran. Department of Anatomical Sciences, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran. Department of Anatomical Sciences, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran. Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran.Abstract Background: Oxidative stress is a major contributor to diabetes, which can lead to testicular damage and infertility. Objective: This study aimed to compare the effects of metformin as a chemical drug with silymarin as an herbal agent on the sperm parameters and histopathological changes of testes in diabetic rats. Materials and Methods: Thirty-two male Wistar rats (250-270 gr) were randomly divided into four groups: 1) control; 2) diabetic; 3) diabetic+metformin 200 mg/kg; and 4) diabetic+silymarin 100 mg/kg. Daily injections were administered intraperitoneally for 56 days. At the end of the treatment, blood sampling was performed for biochemical assessment. Then, the rats were sacrificed and their left testis and epididymis were cut for sperm analysis as well as histopathology and morphometric evaluation. Results: Diabetes was associated with a reduced sperm count, motility, viability, maturity, and chromatin quality of sperm (p ≤ 0.001). It was also associated with a higher malondialdehide level and lower total antioxidant capacity level of serum in comparison with the control group (p ≤ 0.001). There was a significant difference in the seminiferous tubule diameter, germinal epithelium height, and testicular histopathological alterations in the diabetic rats compared with the control rats (p ≤ 0.001). Treatment with metformin and silymarin improved the above-mentioned parameters and this improvement was more substantial in silymarin-treated animals (p ≤ 0.001). Conclusion: In diabetic rats, metformin and silymarin improved sperm parameters, sperm DNA integrity, seminiferous tubule diameter, germinal epithelium thickness, and testicular histopathological complications; this improvement was more substantial in the silymarin-treated group. So, the findings of this study suggest that silymarin is more effective than metformin in treating diabetic-induced infertility.https://doi.org/10.18502/ijrm.v19i12.10060diabetes, dna damage, metformin, silymarin, sperm, testis.
spellingShingle Bagher Pourheydar
Fatemeh Azarm
Gholamhossein Farjah
Mojtaba Karimipour
Maryam Pourheydar
Effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats: An experimental study
International Journal of Reproductive BioMedicine
diabetes, dna damage, metformin, silymarin, sperm, testis.
title Effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats: An experimental study
title_full Effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats: An experimental study
title_fullStr Effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats: An experimental study
title_full_unstemmed Effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats: An experimental study
title_short Effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats: An experimental study
title_sort effect of silymarin and metformin on the sperm parameters and histopathological changes of testes in diabetic rats an experimental study
topic diabetes, dna damage, metformin, silymarin, sperm, testis.
url https://doi.org/10.18502/ijrm.v19i12.10060
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