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Khormali M, Farahpour MR. The navel nanoethosomal formulation of gamma-oryzanol attenuates testicular ischemia/reperfusion damages. Heliyon 2024; 10:e28687. [PMID: 38633627 PMCID: PMC11021891 DOI: 10.1016/j.heliyon.2024.e28687] [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: 08/10/2023] [Revised: 02/01/2024] [Accepted: 03/22/2024] [Indexed: 04/19/2024] Open
Abstract
Testicular torsion reduces blood flow to testes and induces tissue ischemia. Antioxidant can have pivotal roles in alleviation of the effects of torsion/reperfusion. Gamma-oryzanol (γ-Oryzanol) has several pharmacological properties such as antioxidant and anti-apoptosis that can be used in this way. This study was conducted to evaluate the effects of nanoethosomal formulation of gamma-oryzanol (γ-Oryzanol-NEs) on testicular damages in a mouse model of ischemia/reperfusion damage. Following induction of ischemia/reperfusion, the mice were treated with γ-Oryzanol and γ-Oryzanol-NEs (6 mg/kg) in times of 3 h and 6 h. The expression of positive cells of TUNEL, superoxide dismutase (SOD), glutathione peroxidase (GPx), heat shock protein-70 (HSP70) and caspase 3 and histopathological parameters were assessed. The results showed higher expression of positive cells of TUNEL, HSP70 and caspase 3 and lower expressions of SOD and GPx in control mice compared with those treated with γ-Oryzanol-NEs (P = 0.001). The treatment with γ-Oryzanol-NEs could decrease pathological damages and the expression of positive cells of TUNEL, HSP70 and caspase 3 and increase the expressions of SOD and GPx. In conclusion, γ-Oryzanol-NEs could have the protective effects on torsion/reperfusion by decreasing apoptosis and increasing antioxidant status in a mouse model.
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Affiliation(s)
- Mobina Khormali
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Mohammad Reza Farahpour
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
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Protective Effects of Topical Application of Nitrite on Testicular Ischemia-Reperfusion Injury in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5514537. [PMID: 34257803 PMCID: PMC8257346 DOI: 10.1155/2021/5514537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/10/2021] [Accepted: 06/02/2021] [Indexed: 11/17/2022]
Abstract
Testicular torsion is a urologic emergency induced by torsion of the spermatic cord, interrupting blood circulation to the testis. Therapeutic options for testicular torsion, except surgical restoration of testis, are rarely applied in clinical practice. This study, therefore, investigated whether topical application of nitrite (NO2−) is beneficial in tissue damage due to testicular ischemia-reperfusion (I/R) injury in rats. Pubertal Sprague-Dawley rats were assigned to seven groups: group A, sham-operated control group; group B, I/R with no treatment; groups C, D, and E, I/R followed by treatment with three different doses of nitrite; group F, I/R followed by administration of nitrite and a NO scavenger, C-PTIO (2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt); and group G, I/R followed by administration of nitrate (NO3−). Unilateral testicular ischemia was maintained for 5 h, followed by reperfusion for 24 h. Nitrite and nitrate were topically administered before reperfusion. Compared to group A, germ cell apoptosis, oxidative stress, antioxidant enzymatic function, and lipid peroxidation were significantly increased, along with abnormal morphology and impaired spermatogenesis in group B (P < 0.05). In contrast, testicular damage was generally attenuated in the nitrite treatment groups due to a reduction in superoxide and peroxynitrite levels and the inhibition of caspase-3-dependent apoptosis (P < 0.05 vs. group B). These therapeutic effects of nitrite-derived NO were suppressed after injection of C-PTIO, which showed in group F. Taken together, our results demonstrate that topical application of nitrite may be one of the therapeutic strategies for testicular ischemia-reperfusion injury.
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Xia Z, Hu J, Han L, Xia Q, Shao F, Lin X. Effect of unilateral testicular torsion on contralateral testis in a rat model. Pediatr Surg Int 2020; 36:529-536. [PMID: 32072235 DOI: 10.1007/s00383-020-04626-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/03/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the function of the contralateral testis after unilateral testicular torsion (UTT) and its possible mechanism. METHODS 56 rats were randomly divided into four groups: Group A: Sham operation, Group B: Testicular torsion (TT)+normal saline (NS), Group C: Testicular torsion (TT)+cyclosporine, Group D: Testicular torsion (TT)+NG-Monomethyl-L-arginine (L-NMMA). The right testes were removed 1 week and 8 weeks after surgery, respectively. Biochemistry and histopathologic evaluations were used to evaluate the germ cell damage. RESULTS Compared with Group A, the levels of malondialchehyche (MDA) and nitric oxide (NO)/nitricoxide synthase (NOS) were increased remarkably in Group B. Significant differences were shown between histopathological damages and density and motility of sperm in two groups. Compared with Group B, the levels of MDA and NO/NOS in Group D decreased significantly while mean seminiferous tubule diameter (MSTD) and mean testicular biopsy scoring (MTBS) maintained in a better condition. The levels of major histocompatibility complex (MHC) peptide-tetramer complex in Group C and Group D decreased significantly than Group B, while sperm density and motility were significantly higher than Group B. It was also known that the histopathological damages in Group C and Group D were less than those in Group B in the 8 weeks after operation. CONCLUSION UTT can cause impairment of contralateral testicular function and decrease of spermatogenic function. The mechanism may be related to ischemia-reperfusion (IR) in early stage and autoimmune response in late stage.
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Affiliation(s)
- Zhaobo Xia
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Jun Hu
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Lei Han
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, 650101, Yunnan, China
| | - Qiongzhang Xia
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Fangbin Shao
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Xiaokun Lin
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China.
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Lee JW, Lee DH, Park JK, Han JS. Sodium nitrite-derived nitric oxide protects rat testes against ischemia/reperfusion injury. Asian J Androl 2018; 21:243247. [PMID: 30319134 PMCID: PMC6337950 DOI: 10.4103/aja.aja_76_18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 07/16/2018] [Indexed: 11/04/2022] Open
Abstract
Testicular torsion, a common urologic emergency, is primarily caused by ischemia/reperfusion (I/R) injury of the testis. Nitric oxide (NO)-derived from nitrite (NO2-) has been reported to have prominent therapeutic effects on I/R injury in the heart, liver, and brain; however, its effects on testicular I/R injury have not been evaluated. This study, therefore, investigated whether NO from NO2- is beneficial in a rat model of testicular I/R injury which eventually results in impaired spermatogenesis. Male Sprague-Dawley rats were assigned to the following seven groups: group A, sham-operated control group; Group B, I/R with no treatment; Groups C, D, and E, I/R followed by treatment with three different doses of NO2-; Group F, I/R followed by administration of NO2- and NO scavenger (2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt [C-PTIO]); and Group G, I/R followed by administration of nitrate (NO3-). NO2-, NO3-, and C-PTIO were intravenously administered. Histological examination of the testes and the western blot analysis of caspase-3 were performed. Levels of antioxidant enzymes and lipid peroxidation were measured. Germ cell apoptosis, oxidative stress, antioxidant enzymatic function, and lipid peroxidation in Group B were significantly higher than those in Group A. Group B exhibited an abnormal testicular morphology and impaired spermatogenesis. In contrast, testicular damages were attenuated in the NO2- treatment groups, which were caused by reduction in superoxide and peroxynitrite levels and an inhibition of caspase-3-dependent apoptosis. The results of this study suggest NO2- to be a promising therapeutic agent with anti-oxidant and anti-apoptotic properties in testicular I/R injury.
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Affiliation(s)
- Jae Won Lee
- Center for Convergence Bioceramic Materials, Korea Institute of Ceramic Engineering and Technology, Chungcheongbuk-do 28160, Korea
| | - Dong-Hun Lee
- Department of Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Jae Keun Park
- Viral Pathogenesis Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jin Soo Han
- The Institute for the 3Rs & Department of Laboratory Animal Medicine, College of Veterinary Medicine and Veterinary Science Research Institute, Konkuk University, Seoul 05029, Korea
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Fehér ÁM, Bajory Z. A review of main controversial aspects of acute testicular torsion. JOURNAL OF ACUTE DISEASE 2016. [DOI: 10.1016/j.joad.2015.06.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Todorić D, Durdov MG, Tandara M, Čapkun V, Jurić I, Biočić M, Meštrović J, Pogorelić Z. Influence of open testicular biopsy in prepubertal rats on rats' adulthood fertility with correlation to serum levels of inhibin B and follicle stimulating hormone. J Pediatr Urol 2014; 10:1063-9. [PMID: 24856973 DOI: 10.1016/j.jpurol.2014.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 03/24/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Open testicular biopsy (OTB) is one of the options to accurately assess fertility potential of the undescended testis. The aim of the study was to investigate consequences of OTB in prepubertal rats on their adulthood fertility. METHODS Thirty-eight prepubertal male rats were divided into three groups depending on day 20 procedure. The first group was the control group, the second sham operated and the third has left OTB. Bilateral orchiectomy was performed on day 70 to all groups, with determination of serum inhibin B and follicle stimulating hormone (FSH). Removed testes were compared according to the weight, volume, spermatogenesis, histological and apoptotic changes in both testes with differences in serum levels of inhibin B and FSH. RESULTS Ipsilateral testicular weight, volume, and spermatogenesis reduction with a reduction of tubular number, diameter and germinative epithelium was found in OTB group. Significant increase in apoptotic index was found in biopsied testis without compensatory hypertrophy of contralateral testis. Differences of inhibin B and FSH were not statistically significant among three groups. CONCLUSION OTB in prepubertal rats has detrimental effects on fertility in adulthood. It does not cause compensatory hypertrophy of the contralateral testis nor does it disturb serum levels of inhibin B and FSH.
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Affiliation(s)
- Davor Todorić
- Department of Pediatric Surgery, Split University Hospital Centre and Split University School of Medicine, Spinčićeva 1, 21 000 Split, Croatia
| | - Merica Glavina Durdov
- Department of Pathology, Forensic Medicine and Cytology, Split University Hospital Centre and Split University School of Medicine, Spinčićeva 1, 21 000 Split, Croatia
| | - Marijan Tandara
- Department of Gynecology, Split University Hospital Centre and Split University School of Medicine, Spinčićeva 1, 21 000 Split, Croatia
| | - Vesna Čapkun
- Department of Nuclear Medicine, Split University Hospital Centre and Split University School of Medicine, Spinčićeva 1, 21 000 Split, Croatia
| | - Ivo Jurić
- Department of Pediatric Surgery, Split University Hospital Centre and Split University School of Medicine, Spinčićeva 1, 21 000 Split, Croatia
| | - Mihovil Biočić
- Department of Pediatric Surgery, Split University Hospital Centre and Split University School of Medicine, Spinčićeva 1, 21 000 Split, Croatia
| | - Jakov Meštrović
- Department of Pediatric Surgery, Split University Hospital Centre and Split University School of Medicine, Spinčićeva 1, 21 000 Split, Croatia
| | - Zenon Pogorelić
- Department of Pediatric Surgery, Split University Hospital Centre and Split University School of Medicine, Spinčićeva 1, 21 000 Split, Croatia.
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Meštrović J, Drmić-Hofman I, Pogorelić Z, Vilović K, Šupe-Domić D, Šešelja-Perišin A, Čapkun V. Beneficial Effect of Nifedipine on Testicular Torsion-detorsion Injury in Rats. Urology 2014; 84:1194-8. [DOI: 10.1016/j.urology.2014.07.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/30/2014] [Accepted: 07/07/2014] [Indexed: 10/24/2022]
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Diagnostic value of fine needle aspiration cytology in testicular disorders of red deer (Cervus elaphus): a case report. J Wildl Dis 2014; 50:994-7. [PMID: 25248117 DOI: 10.7589/2013-11-304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We used fine needle aspiration cytology (FNAC) to diagnose Sertoli cell-only pattern and hypospermatogenesis in an Iberian red deer (Cervus elaphus hispanicus). Cytologic diagnosis was confirmed by histology and epididymal sperm analysis. We conclude that FNAC can be an important diagnostic tool in testicular diseases of wildlife.
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Jankovic Velickovic L, Stefanovic V. Hypoxia and spermatogenesis. Int Urol Nephrol 2013; 46:887-94. [PMID: 24265038 DOI: 10.1007/s11255-013-0601-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 11/01/2013] [Indexed: 12/15/2022]
Abstract
This review mainly focuses on our understanding of spermatogenesis in physiological and pathological hypoxic condition. Real hypoxia is closely related to vascular changes and an increase in testicular temperature. Both induce a reduction in sperm count and can be related to the increase in germ cell apoptosis. On the other hand, change in the temperature, and oxygen levels in the microenvironment have influence on spermatogonial stem cell function and differentiation. The initial connection between hypoxia and a factor critical for stem cell maintenance is alteration in Oct-4 expression, and these data may be a useful strategy for modulating stem cell function. Unilateral testicular ischemia-induced cell death can be accompanied by an increase in germ cell apoptosis in the contralateral testis. The injury of contralateral testis following unilateral testicular damage is controversial, and it can contribute to the reduction in fertility.
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Jiang D, Wu D, Zhang Y, Xu B, Sun X, Li Z. Protective effects of hydrogen rich saline solution on experimental testicular ischemia-reperfusion injury in rats. J Urol 2012; 187:2249-53. [PMID: 22503049 DOI: 10.1016/j.juro.2012.01.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Indexed: 12/26/2022]
Abstract
PURPOSE We examined the effectiveness of hydrogen rich saline solution on the prevention of testicular damage induced by ischemia/reperfusion in rats. MATERIALS AND METHODS Male Sprague-Dawley® rats were divided randomly into 4 groups, including group 1-sham operated, group 2-torsion-detorsion, group 3-torsion-detorsion plus saline and group 4-torsion-detorsion plus hydrogen rich saline solution. Testicular torsion was performed by rotating the left testis 720 degrees clockwise for 4 hours. Reperfusion was allowed for 4 hours. Hydrogen rich saline solution (5 ml/kg) was injected intraperitoneally in rats in group 4 15 minutes before the start of detorsion. Rats were sacrificed after 4-hour initiation of detorsion. Left orchiectomy was done for histopathological examination and biochemical assay. RESULTS The testicular injury score in groups 2 and 3 was significantly lower than in sham operated group 1 but higher in group 4 with hydrogen rich saline than in group 2 with torsion-detorsion. The apoptosis index was significantly increased in groups 2 and 3. Hydrogen rich saline solution treatment significantly decreased the apoptosis index. A significant increase in malondialdehyde and a decrease in superoxide dismutase activity were observed in groups 2 and 3. In group 4 malondialdehyde was significantly lowered and superoxide dismutase activity was significantly improved compared with groups 2 and 3. CONCLUSIONS Results provide a biochemical and histopathological basis for the action of hydrogen rich saline solution as a therapeutic agent for testicular damage induced by ischemia/reperfusion injury.
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Affiliation(s)
- Dapeng Jiang
- Department of Pediatric Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
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Lee JW, Kim JI, Lee YA, Lee DH, Song CS, Cho YJ, Han JS. Inhaled hydrogen gas therapy for prevention of testicular ischemia/reperfusion injury in rats. J Pediatr Surg 2012; 47:736-42. [PMID: 22498389 DOI: 10.1016/j.jpedsurg.2011.09.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 08/09/2011] [Accepted: 09/02/2011] [Indexed: 12/26/2022]
Abstract
PURPOSE This study evaluated whether 2% hydrogen (H(2)) gas therapy protects against testicular ischemia/reperfusion injury which results in increased formation of reactive oxygen species and/or reactive nitrogen species, leading to testicular apoptosis and impaired spermatogenesis. METHODS Pubertal six-week-old Spraque-Dawley rats were assigned to 5 groups (10 animals/group) as follows: group A was a sham operated group; groups B, C, D, and E underwent 5 hours of left testicular ischemia followed by 0, 30, 60, and 120 minutes of 2% H(2) gas therapy, respectively. Histological analysis was performed to verify structure and morphology of the testes and to investigate Johnsen scores, mean seminiferous tubule diameter, and the number of germ cell layers to classify spermatogenesis. Germ cell apoptosis was evaluated by terminal deoxynucleotidyl transferase dUTP nick end labeling assay and Bax/Bcl-2 ratio real-time polymerase chain reaction. We also investigated malondialdehyde levels as an indicator of lipid peroxidation. RESULTS Compared to the sham group (A), germ cell apoptosis and lipid peroxidation in the ischemia group (B) were significantly increased with abnormal morphology and impaired spermatogenesis. In contrast, amelioration of testicular damages was evident in the H(2) therapy groups (C, D, and E). CONCLUSIONS Our results showed that inhalation of 2% H(2) gas may be a promising therapy with anti-apoptotic and anti-oxidant properties in cases of testicular ischemia/reperfusion injury.
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Affiliation(s)
- Jae-Won Lee
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
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Yíldíz H, Durmus AS, Simşek H, Yaman M. Protective effect of sildenafil citrate on contralateral testis injury after unilateral testicular torsion/detorsion. Clinics (Sao Paulo) 2011; 66:137-42. [PMID: 21437450 PMCID: PMC3044577 DOI: 10.1590/s1807-59322011000100024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Accepted: 10/10/2010] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVES This study was designed to investigate prevention of contralateral testicular injury with sildenafil citrate after unilateral testicular torsion/detorsion. METHODS Thirty-seven adult male rats were divided into four groups: sham operated (group 1, n = 7), torsion/detorsion + saline (group 2, n = 10), torsion/detorsion + 0.7 mg of sildenafil citrate (group 3, n = 10) and torsion/detorsion + 1.4 mg of sildenafil citrate (group 4, n = 10). Unilateral testicular torsion was created by rotating the right testis 720º in a clockwise direction for 2 h in other groups, except for group 1, which was served as sham group. After torsion (2 h) and detorsion (2 h) periods, rats were killed. RESULTS The level of reduced glutathion (GSH) (p < 0.05) and the activities of catalase (p < 0.01) and glutathione peroxidase (p < 0.05) in the contralateral testis from group 2 were significantly lower and nitric oxide (NO) (p < 0.05) level in the contralateral testis were significantly higher than those of group 1. Administration of low-dose sildenafil citrate (group 3) prevented the increases in malondialdehyde and NO levels and decreases in glutathione peroxidase activities and GSH values induced by testicular torsion. However, administration of high-dose sildenafil citrate (group 4) had no effect on these testicular parameters (p > 0.05). Histopathological changes were detected in groups 2, 3 and 4. CONCLUSION These results suggest that biochemically and histologically torsion/detorsion injury occurs in the contralateral testis following 2-h torsion and 2-h detorsion and that administration of low-dose sildenafil citrate before detorsion prevents ischemia/reperfusion cellular damage in testicular tissue.
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Affiliation(s)
- Hamit Yíldíz
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Fírat University, Elazíğ, Turkey.
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Istanbulluoglu MO, Zor M, Celik A, Cicek T, Basal S, Ozgok A, Ustun H, Ozgok Y. Effects of vardenafil on testicular torsion/detorsion damage: an experimental study in pigs. Urol Int 2010; 86:228-32. [PMID: 21124003 DOI: 10.1159/000321492] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Accepted: 09/27/2010] [Indexed: 12/26/2022]
Abstract
PURPOSE To investigate the effects of vardenafil HCl on testicular germ cell apoptosis and the expressions of iNOS and eNOS within the bilateral testes after unilateral torsion/detorsion (T/D) in a pig model. METHODS 12 male pigs weighing 50-55 kg were divided randomly into three groups (n = 4). Sham operation and T/D was performed in groups 1 and 2, respectively. Group 3 underwent T/D and received vardenafil (0.4 mg/kg) orally 45 min before detorsion. The testes were left in torsion for 2 h. In all groups, both testes were removed 8 h after the operation for histopathological analysis. RESULTS Except for group 1, the histopathologic parameters of the ipsilateral testes were higher than in the contralateral testes, and this difference was statistically significant (p < 0.05). Testicular ischemia/reperfusion (I/R) (group 2) resulted in marked increases in germ cell apoptosis, iNOS and eNOS in the ischemic testes compared to the sham-operated group. The pigs treated with vardenafil (group 3) also showed significantly increased apoptotic cells, iNOS and eNOS levels compared to the sham-operated group. CONCLUSIONS The results suggest that vardenafil HCl worsened histopathological changes related to oxidative stress in testicular injury and had no protective effect on testicular I/R injury in pigs.
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Involvement of the bax and bcl-2 system in the induction of germ cell apoptosis is correlated with the time of reperfusion after testicular ischemia in a rat model. Fertil Steril 2009; 92:1466-1469. [DOI: 10.1016/j.fertnstert.2009.04.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 04/10/2009] [Accepted: 04/13/2009] [Indexed: 11/23/2022]
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Sukhotnik I, Greenblatt R, Voskoboinik K, Lurie M, Coran AG, Mogilner JG. Relationship between time of reperfusion and E-selectin expression, neutrophil recruitment, and germ cell apoptosis after testicular ischemia in a rat model. Fertil Steril 2008; 90:1517-22. [DOI: 10.1016/j.fertnstert.2007.07.1334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2007] [Revised: 07/16/2007] [Accepted: 07/16/2007] [Indexed: 10/22/2022]
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Yapanoglu T, Aksoy Y, Gursan N, Ozbey I, Ziypak T, Calik M. Antiapoptotic effects of dehydroepiandrosterone on testicular torsion/detorsion in rats. Andrologia 2008; 40:38-43. [PMID: 18211300 DOI: 10.1111/j.1439-0272.2008.00806.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In the present study, we aimed to evaluate the effects of dehydroepiandrosterone (DHEA) on apoptosis of testicular germ cells after repair of testicular torsion in rats. Twenty-four adult male Sprague-Dawley rats were randomly divided into four groups, with six rats in each group: sham operation, torsion/detorsion (T/D), T/D + vehicle, and T/D + DHEA. Three hours before detorsion, 50 mg kg(-1) DHEA was given intraperitoneally to T/D + DHEA group. In all groups, bilateral orchiectomies were performed and both testicles were histologically examined, with apoptosis detected using the in situ DNA fragmentation [terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL)] system, with morphological damage detected using a four-level grading scale in each specimen. The testes of the sham group showed a normal histology. In T/D and T/D + vehicle groups, apoptotic spermatogonia and spermatocyte number were significantly higher than in the sham group (P < 0.01 for all). The T/D + DHEA group showed a reduction in apoptotic spermatocyte and spermatogonia number in seminiferous epithelia compared with T/D group (P < 0.01 for both). Apoptotic cell number of contralateral testes did not reveal any significant differences among these groups (P > 0.05). Specimens from T/D and T/D + vehicle had a significantly greater histological injury than sham and T/D + DHEA groups in the ipsilateral testes (P < 0.01 for both). Therefore, the results suggest that DHEA may be a protective agent for preventing apoptosis caused by testicular torsion.
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Affiliation(s)
- T Yapanoglu
- Department of Urology, School of Medicine, Ataturk University, Erzurum, Turkey
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Aksoy H, Yapanoglu T, Aksoy Y, Ozbey I, Turhan H, Gursan N. Dehydroepiandrosterone treatment attenuates reperfusion injury after testicular torsion and detorsion in rats. J Pediatr Surg 2007; 42:1740-4. [PMID: 17923206 DOI: 10.1016/j.jpedsurg.2007.05.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE We aimed to evaluate the effects of dehydroepiandrosterone (DHEA) on antioxidant enzyme activities, lipid peroxidation, and histopathologic changes in both testes after unilateral testicular torsion and detorsion. METHODS Twenty-four adult male Sprague-Dawley rats were randomly divided into 4 groups (n = 6 for each group): sham operation, torsion/detorsion (T/D), T/D + vehicle, and T/D + DHEA. Three hours before detorsion, 50 mg/kg DHEA was given intraperitoneally to the T/D + DHEA group. Testicular ischemia was achieved by twisting the left testis 720 degrees clockwise for 3 hours, and reperfusion was allowed for 24 hours after detorsion. In all groups, bilateral orchiectomies to determine the testicular tissue catalase (CAT) and superoxide dismutase activities and malondialdehyde (MDA) levels and histopathologic examination were performed. RESULTS Compared with those from the sham group, CAT activities in the ipsilateral testis obtained from the T/D group were significantly lower and MDA levels were significantly higher (P < .05 for all). Administration of DHEA prevented increases in MDA levels and decreases in CAT and superoxide dismutase activities when compared to the T/D group. Specimens from the T/D and the T/D + vehicle groups had a significantly greater histologic injury than the specimens from the sham and the T/D + DHEA groups had (P < .01 for both). CONCLUSIONS The results suggest that DHEA may be a protective agent for preventing biochemical and histopathologic changes related to oxidative stress in testicular injury caused by testis torsion.
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Affiliation(s)
- Hülya Aksoy
- Department of Biochemistry, School of Medicine, Ataturk University, TR-25240 Erzurum, Turkey.
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Mogilner JG, Elenberg Y, Lurie M, Shiloni E, Coran AG, Sukhotnik I. Effect of dexamethasone on germ cell apoptosis in the contralateral testis after testicular ischemia-reperfusion injury in the rat. Fertil Steril 2006; 85 Suppl 1:1111-7. [PMID: 16616082 DOI: 10.1016/j.fertnstert.2005.10.021] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2005] [Revised: 10/06/2005] [Accepted: 10/06/2005] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To evaluate the effect of dexamethasone on spermatogenesis and germ cell apoptosis in the ipsilateral and contralateral testis after testicular ischemia-reperfusion (IR) in rats. DESIGN Laboratory study. SETTING Medical research laboratory in a university setting. ANIMAL(S) Forty adult Sprague-Dawley rats weighing 250-280 g. INTERVENTION(S) Testicular IR, treatment with dexamethasone (10 mg per kilogram of body weight). MAIN OUTCOME MEASURE(S) Testicular germ cell apoptosis was assessed by deoxyuridine nick-end labeling immunohistochemical assay. RESULT(S) Testicular ischemia in rats led to histological damage in the ipsilateral testis. In the contralateral testis, minimal damage was observed. Germ cell apoptosis in both the ischemic and the contralateral testis increased significantly after IR. Treatment with dexamethasone did not change germ cell apoptosis in ischemic testis but decreased germ cell apoptosis in the contralateral testis. CONCLUSION(S) Glucocorticoids may be beneficial for spermatogenesis after testicular IR by decreasing germ cell apoptosis in the contralateral testis.
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Affiliation(s)
- Jorge G Mogilner
- Department of Pediatric Surgery, Bruce Rappaport Faculty of Medicine, Technion, Bnai Zion Medical Center, Haifa, Israel.
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