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Ameliorative effects of curcumin against acute cadmium toxicity on male reproductive system in rats
(Wiley, 2012) Oguzturk, H.; Ciftci, O.; Aydin, M.; Timurkaan, N.; Beytur, A.; Yilmaz, F.
The aim of the present study was to investigate the ameliorative effect of curcumin (CMN) against acute cadmium chloride (CdCl2) toxicity on male reproductive system in rats. CdCl2 is known to be a heavy metal and potential environmental pollutant. For this purpose, 28 rats were equally divided into four groups; the first group was kept as control and given distilled water and corn oil as carrier. In second and third groups, CdCl2 and CMN were administered at the dose with 1 mg kg-1 day-1 and 100 mg kg-1 for 3 days respectively. CdCl2 and CMN were given together at the same doses in the fourth group. It was determined that acute CdCl2 exposure caused a significant reproductive damage via increased oxidative stress (increased TBARS levels and decreased SOD, CAT, GPx and GSH levels), histological alterations (necrosis, oedema etc.) and spermatological damage (decreased sperm motility and sperm concentration and increased abnormal sperm rate) in male rats. However, CMN treatment partially reversed these toxic effects of CdCl2 on the reproductive system. In conclusion, our results show that acute exposure of CdCl2 may lead to infertility, and CMN could prevent and reverse hazardous effects of CdCl2 to some degree. Thus, CMN may be useful for the prevention of CdCl2-induced reproductive damage.
Aminoguanidine prevents testicular damage-induced-2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in male rats
(Wiley, 2013) Oguz, F.; Ciftci, O.; Aydin, M.; Timurkaan, N.; Beytur, A.; Altintas, R.; Parlakpinar, H.
In this study, it was aimed to determinate protective effects of aminoguanidine (AG) against reproductive toxicity caused by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), an environmental contaminant. Thirty-two rats were equally divided into four groups; the first group was kept as control and given corn oil as carrier. In second and third groups, TCDD and AG were orally administered at the dose of 2 mu k g(-1) per week and 100 mg kg(-1) per day for 45 days, respectively. In fourth group, TCDD and AG were given together at the same doses. Although TCDD significantly increased the formation of TBARS, it caused a significant decline in the levels of GSH, CAT, GPx and SOD in rats. On the other hand, AG, given together TCDD, reversed TCDD effects on TBARS SOD, GSH, GPx and CAT. In addition, sperm characteristics negatively affected and histopathological deformation occurred with TCDD exposure. However, AG treatment partly prevented these toxic effects of TCDD on spermatological parameters and histopathological changes. In conclusion, TCDD exposure induces testicular damage (oxidative stress, histopathological damage and sperm parameters), and AG treatment reversed TCDD-induced testicular damage in rats. Thus, AG may be useful for the prevention and treatment of TCDD-induced male infertility problems.
Apoptotic, Cytotoxic and Antimigratory Activities of Phenolic Compounds
(Pleiades Publishing Inc, 2022) Yuce, H.; Sahin, Y.; Turkmen, N. Basak; Ozek, D. Askin; Unuvar, S.; Ciftci, O.
The objective of this study was to evaluate the biological activities of chrysin (CRY), curcumin (CUR), and ellagic acid (EA) by comparing the anti-proliferative, anti-migration effects, and apoptotic gene expressions between the three human cancer cell lines: lung (A549), liver (HEP3B), and breast (MCF-7) compared to normal human fibroblast cell line (L929). Antiproliferative effects of certain phenolic compounds were determined by the MTS assay. Cells were treated with different concentrations of the compounds for two consecutive days. Their effect on cell migration was evaluated using the wound-healing assay. Apoptosis was evaluated by Bax, Bcl-2, Cas-3, Cas-8, Cas-9, Cas-10, CDK 2, CDK4, CDK6, CCNB1, and CCND2 gene expressions. The MTS assay showed that the compounds had antiproliferative effects on A549, HEP3B, and MCF-7 cell lines in a dose- and time-dependent manner. All three compounds also suppressed the migration of the tumor cell lines, significantly increased the levels of apoptotic gene expression, and induced apoptotic cell death. This study shows that chrysin, curcumin, and ellagic acid could be considered promising chemotherapeutic agents in the treatment of lung, liver, and breast cancers.
BENEFICIAL EFFECTS OF CHRYSIN AGAINST 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN (TCD) INDUCED REPRODUCTIVE TOXICITY IN RATS
(Elsevier Science Bv, 2010) Ciftci, O.; Beytur, A. B.
[Abstract Not Available]
Beneficial effects of chrysin on the reproductive system of adult male rats
(Wiley, 2012) Ciftci, O.; Ozdemir, I.; Aydin, M.; Beytur, A.
In this study, the beneficial effect of chrysin, a natural flavonoid currently under investigation due to its important biological activities, on reproductive system of rats was investigated. Rats (n = 16) were divided randomly into two equal groups. Rats in control group were given corn oil as carrier. Chrysin was orally administered at the dose of 50 mg kg-1 per day by gavages, and it was dissolved in corn oil for 60 days. Tissue thiobarbituric acid reactive substances (TBARS) and glutathione (GSH) levels, antioxidant enzyme activity (CAT, SOD and GSH-Px), sperm parameters (motility, concentration and abnormal sperm rate), reproductive organ weight (testes, epididymis, vesicula seminalis, prostate) and serum testosterone levels were determined in the rats. Our results indicated that chrysin significantly increased GSH, CAT, GSH-Px and CuZn-SOD levels, but did not change the formation of TBARS significantly. In addition, sperm motility, sperm concentration and serum testosterone levels significantly increased, whereas abnormal sperm rate significantly decreased with chrysin treatment. In conclusion, it is suggested that treatment with chrysin can positively affect the reproductive system in rats, and it can be used for the treatment of male infertility.
Beneficial effects of hesperidin following cis-diamminedichloroplatinum-induced damage in heart of rats
(Wolters Kluwer Medknow Publications, 2016) Oguzturk, H.; Ciftci, O.; Cetin, A.; Kaya, K.; Disli, O. M.; Turtay, M. G.; Gurbuz, S.
Background: Increased oxidative stress and histopathological damage have been implicated in the cardiotoxicity that limits the clinical therapy of cisplatin (CP) as an anti-cancer drug. Objectives: This study aimed to investigate the protective effect of hesperidin (HP) against CP-induced cardiotoxicity in rats. Materials and Methods: Rats were divided into four groups (n = 7/group), and the first group served as the control group. Animals in Group CP and Group CP + HP received a single dose of CP (CP - 7 mg/kg); animals in Group HP and Group CP + HP received 50 mg/kg/day HP with gavage for 14 days. At the end of day 14, cardiac tissue samples were histologically and biochemically examined. Results: In this experimental study, thiobarbituric acid reactive substances levels in the cardiac tissue were significantly higher in the CP group, whereas glutathione (GSH), superoxide dismutase (SOD), and CAT levels were significantly lower in this group. On the other hand, GSH and SOD levels in the CP + HP group were similar to the control group. There was no significant difference in cardiac CAT levels between Group CP and Group CP + HP. Conclusion: Hesperetin treatment leads to a decrease in oxidative stress, and associated histological damage. The findings of the current study suggest that HP has a protective effect against CP-induced cardiotoxicity.
The Beneficial Effects of Resveratrol on Experimental Autoimmune Encephalomyelitis (EAE) in C57BL/6J Mouse Model
(Pleiades Publishing Inc, 2022) Tecellioglu, M.; Turkmen, N. Basak; Ciftci, O.; Taslidere, A.; Ekmekyapar, T.; Yuce, H.; Oztanir, M. N.
Multiple sclerosis (MS) is a disease of the central nervous system of unknown cause and limited therapeutical treatments. In this study we analyzed the effects of resveratrol (RSV), a polyphenolic compound with well-known neuroprotective effects, on neuronal damage in brain tissue caused by experimental autoimmune encephalomyelitis (EAE)-an established model of multiple sclerosis, using C57BL/6J female mice. A total of 40 C57BL/6J female mice were divided equally into four groups: control, EAE, RSV and RSV + EAE. 14 days after induction of EAE with myelin oligodendrocyte glycoprotein MOG35-55 and pertussis toxin, mice were treated via oral gavage with RSV at the doses of 20 mg/kg per day for 7 days. According to our results RSV treatment prevented oxidative stress caused by EAE via a decrease in lipid peroxidation and an increase in the elements of the antioxidant defense systems in brain tissue. The histopathological changes in caspase-3 and IL-17 activity and cytokine levels (TNF-alpha and IL-1 beta) induced by EAE in mouse brain tissue were reversed by RSV treatment. Moreover, elevated TNF-alpha and IL-1 beta levels, induced by EAE, were diminished in blood serum, and neurological deficits were reversed in EAE mice treated with RSV. Our findings suggest that RSV treatment effectively prevents oxidative, immunological, and histological changes in the brain caused by EAE and the beneficial effects of RSV are likely to result from its strong antioxidant and anti-inflammatory properties.
Comparison of immunological, histological and oxidative effects of felbamate and levetiracetam in traumatic brain injury
(Verduci Publisher, 2020) Bayhan, I; Turtay, M. G.; Ciftci, O.; Cetin, A.; Basak, N.; Oztanir, M. Namik; Oguzturk, H.
OBJECTIVE: We aimed to compare immunological, histological and oxidative effects of antiepileptic agents; felbamate and levetiracetam on head trauma in rats. MATERIALS AND METHODS: In this study, 32 Sprague-Dawley genus male rats were used. A closed head trauma mechanism was constituted in order to perform head trauma in rats. Rats were divided into 4 groups, and each group had 8 rats. Following head trauma, Group 1 (Control); normal saline was administered, Group 2; levetiracetam 50 mg/kg was administered, Group 3; felbamate 100 mg/kg was administered, and Group 4; levetiracetam 50 mg/kg and felbamate 100 mg/kg were administered with a combination. Injections were administered intraperitoneally once a day for 20 days. The rats were decapitated at the end of the 20th day. Blood and tissue samples were collected and analyzed for biochemical, immunohistochemical and histological parameters. RESULTS: Serum cytokine levels in Group 2, 3 and 4 were lower when compared to the control group. In Group 4, in which combined therapy was performed, cytokine levels were found to be the lowest. In Groups 2 and 3, a significant decrease in vascular congestion, mononuclear cell infiltration, hemorrhage, and neural degeneration was noticed in the pia mater. In Group 2, a decrease in vascular congestion and Purkinje cell degeneration was obtained in the cerebellum. However, the best outcomes were determined in Group 4. CONCLUSIONS: We determined that levetiracetam and felbamate alone are useful with respect to immunological, oxidative and histological alterations. However, their utility is better when used in a combination.
Complete atrioventricular block caused by mad honey intoxication
(Verduci Publisher, 2012) Oguzturk, H.; Ciftci, O.; Turtay, M. G.; Yumrutepe, S.
The honey produced by the bees fed on Rhododendron family plants containing grayanotoxin is known as mad honey in our country. This intoxication is seen rarely. However, it may lead life-threatening hemoinstability mentioned above and may be confused with various diseases. For these reasons the exact diagnosis and treatment of this intoxication seems very important. We aim to describe a case admitted to the Emergency Department in consequence of mad honey intoxication and treated and discharged after hypotension and complete atrioventricular block development.
Curcumin protects against testis-specific side effects of irinotecan
(Verduci Publisher, 2021) Uyanik, O.; Gurbuz, S.; Ciftci, O.; Oguzturk, H.; Aydin, M.; Cetin, A.; Basak, N.
OBJECTIVE: Irinotecan (IR/CPT-11) is a semisynthetic, water-soluble derivative of the alkaloid camptothecin. It is a topoisomerase I group antineoplastic drug commonly used for the treatment of many cancer types, although it has side effects in tissues such as the testis. Curcumin (CRC) is a polyphenol compound produced from the Indian saffron root; it is used as food colouring and food flavouring. This study examined the testis-specific side effects of IR and the ability of CRC to protect against these side effects. MATERIALS AND METHODS: Forty male Sprague-Dawley rats were used in our study (n = 10). The rats were randomly divided into the following four groups: control, IR, IR + CRC, and CRC. IR 10 mg/kg/day was administered intraperitoneally and CRC 100 mg/kg was administered orally. Blood and testicular samples were collected from rats in all four groups on day 30 after drug administration. Histological, biochemical, and spermatological analyses were conducted. RESULTS: Testis tissue and blood samples were collected from the four groups. Tissue samples from the control and CRC groups demonstrated normal histological appearance on light microscopy. The IR group exhibited the following findings: vascular congestion in the tunica albuginea layer; tubular degeneration and vascular congestion in the interstitial area; oedema, vacuolisation, and luminised cells in the seminiferous tubule: and cells that temporarily stopped dividing at any stage of division in the seminiferous tubule epithelium. In the IR+CRC group, histopathological damage was significantly reduced by CRC treatment. Biochemical analysis showed that the level of thiobarbituric acid reactive substance (TBARS) was significantly increased in the IR group, compared with the other groups. CRC treatment significantly decreased this IR-mediated increase in TBARS level, and the TBARS level in the IR + CRC group approached the level observed in the control group. IR treatment caused significant decreases in glutathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) levels. However, CRC administration tended to ameliorate the decreases in GSH, SOD, CAT, and GPx levels. CONCLUSIONS: In this study, IR had some toxic effects in rat testis tissue: these effects were ameliorated by CRC treatment. Further studies are warranted to confirm our results.
Fish oil, contained in eicosapentaenoic acid and docosahexaenoic acid, attenuates testicular and spermatological damage induced by cisplatin in rats
(Wiley, 2014) Ciftci, O.; Cetin, A.; Aydin, M.; Kaya, K.; Oguz, F.
The aim of this study was to investigate the beneficial effects of the fish oil (FO) supplementation on oxidative stress, sperm characteristics and histological alterations in the male reproductive system of rats against cisplatin (CP) toxicity. The rats were divided randomly into 4 equal groups (control, FO, CP and FO+CP). FO was orally administered at the dose of 1softgel per rat per day for 14days and CP was intraperitoneally given at the dose of 7mgkg(-1) with a single injection. In CP+FO group, they were applicated at the same doses and times. The results showed that CP caused a significant oxidative damage via induction of lipid peroxidation and reduction in the antioxidant defence system potency in the testis tissue. In addition, sperm motility and sperm concentration significantly decreased but the abnormal sperm rate and histopathological testicular damage increased with CP treatment. On the other hand, FO treatment prevented oxidative, histopathological and spermatological effects of CP and reversed side effects of CP. In conclusion, FO supplementation had significant beneficial effects against CP toxicity on male reproductive system and toxic effects of CP can be prevented by FO treatment. Therefore, it appears that fish oil may be useful for the prevention and treatment of cisplatin-induced reproductive system toxicity.
?-Glucan ameliorates cisplatin-induced oxidative and histological damage in kidney and liver of rats
(Taylor & Francis Ltd, 2024) Kaya, Kursat; Ciftci, O.; Turkmen, N. Basak; Taslidere, A.; Gul, C. C.
We investigated the effects of beta-glucan (beta g) on kidney and liver damage caused by cisplatin (CP), an antineoplastic agent widely used to treat many types of cancer, in a rat model. The side effects of CP in many tissues and organs limit its usage. beta g is a natural polysaccharide that is an effective free radical scavenger. A total of 28 rats were randomly divided into four groups. Group 1 was a non-intervention control, only feed and water were given. Group 2 was administered 7 mg/kg CP in a single dose. Group 3 was administered 50 mg/kg beta g orally for 14 days. Group 4 was administered beta g for 14 days, following a single dose of CP. At the end of the experiment, kidney and liver tissues were evaluated biochemically and histopathologically. Increased thiobarbituric acid-reactive substances (TBARS) levels, as well as decreased catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx) activities, and reduced glutathione (GSH) levels, as well as histological damage, were noted in both the kidney and liver tissues of the CP group. However, beta g treatment prevented the oxidative and histopathological effects of CP. The study demonstrates the protective efficacy of beta g against CP-induced kidney and liver damage through the effect of its antioxidant properties.
Hesperidin protects testicular and spermatological damages induced by cisplatin in rats
(Wiley, 2015) Kaya, K.; Ciftci, O.; Cetin, A.; Dogan, H.; Basak, N.
The clinic usage of cisplatin, an anticancer drug, is limited due to it has many side effects in many systems and organs. In this context, it was aimed to investigate the protective effect of hesperidin, a citrus flavonoid, on testicular and spermatological damages induced by cisplatin in rats. The rats were randomly divided into four groups. The first group was kept as a control. In the second groups, cisplatin was given at the single dose of 7mgkg(-1) intraperitoneally. In the third group, hesperidin was orally administered at the dose of 50 mg/kgday(-1) for 14days. In the fourth group, cisplatin and hesperidin were given together at the same doses. Cisplatin treatment caused significant reductions enzymatic (SOD, CAT and GPx) and nonenzymatic (GSH) antioxidants and significant induction level of TBARS. In addition, cisplatin treatment caused decreased sperm motility, epididymal sperm concentration, increased abnormal sperm rate and histopathological damage. In contrast, hesperidin treatment significantly attenuated the harmful effects. In conclusion, this study clearly demonstrated that hesperidin has protective effects on cisplatin-induced reproductive system toxicity depending on its antioxidant properties. Thus, it is thought that hesperidin may be useful against cisplatin toxicity in patients with cancer in terms of reproductive system.
Investigation into the protective effects of Naringenin in phthalates-induced reproductive damage
(Verduci Publisher, 2022) Taslidere, A.; Turkmen, N. B.; Ciftci, O.; Aydin, M.
OBJECTIVE: Di-n-butyl phthalate (DBP) is a ubiquitous environmental pollutant, extensively used as a plasticizer in many products, including plastics. cosmetics. and medical devices. Naringenin (NAR) is a flavonoid belonging to the flavanones subclass. It is widely distributed in several citrus fruits, bergamot, tomatoes, and other fruits. It is also found in its glycoside form (mainly naringin). Several biological activities have been ascribed to this phytochemical: antioxidant, antitumor, antiviral, antibacterial, anti-inflammatory, antiadipogenic, and ca rdioprotective effects. This study hypothesized that phthalates' possible reproductive damage mechanism is oxidative attack, and naringenin could have a protective effect against radical forms in the body through its antioxidant properties. MATERIALS AND METHODS: Thirty-two male rats were used in our study (n=8 each). Rats were randomly divided into four groups: Control, DBP, DBP +NAR and NAR. Phthalate (DBP) and NAR were administered through gastric oral gavage (phthalate group 500 mg/kg/day DBP: NAR group 50 mg/kg/day NAR). At the end of four weeks. testis tissue samples were taken under anesthesia. Testis tissue and blood samples were collected from the four groups in this study. Histological, biochemical and spermatological analyses were conducted. RESULTS: Tissue samples from the control and NAR groups showed normal histological appearance on light microscopy. The DBP group exhibited deterioration in seminiferous tubules, vascular congestion in capsule, vascular congestion between the seminiferous tubules, edema in the intestinal area and vacuolization. arrested spermatocytes in different stages of division; sloughing of cells into the seminiferous tubular lumen was observed. it was also observed that NAR treatment significantly inhibited and prevented the histopathological damage caused by DBP. Tissue TBARS, antioxidant parameters, sperm motility, sperm density and abnormal spermatozoon ratios were determined. As a result, it was shown that DBP caused oxidative damage by increas- ing TBARS levels and decreasing antioxidant parameters. increased abnormal sperm rate and decreased sperm motility. and concentration and histopathological damage, so the antioxidant activity of naringenin inhibited this damage. CONCLUSIONS: DBP had toxic effects in rat testis tissue: NAR treatment ameliorated these effects. Further studies are warranted to confirm our findings.
Lycopene prevents experimental priapism against oxidative and nitrosative damage (vol 18, pg 3320, 2014)
(Verduci Publisher, 2021) Ciftci, O.; Oguz, F.; Beytur, A.; Polat, F.; Altintas, R.; Oguzturk, H.
[Abstract Not Available]
Neuroprotective effects of hesperidin in a C57BL/6 mouse model of multiple sclerosis
(Sage Publications Ltd, 2014) Ciftci, O.; Ozcan, C.; Kamisli, O.; Cetin, A.; Basak, N.; Aytac, B.
[Abstract Not Available]
Protective role of Diospyros lotus on cisplatin-induced changes in sperm characteristics, testicular damage and oxidative stress in rats
(Wiley, 2016) Saral, S.; Ozcelik, E.; Cetin, A.; Saral, O.; Basak, N.; Aydin, M.; Ciftci, O.
The aim of this study was to investigate the protective effect of Diospyros lotus (DL) on cisplatin (CP)-induced testicular damage in male rats. Twenty-eight male rats were randomly divided into four groups: group 1 - control, given isotonic saline solution; group 2 - CP 7mgkg(-1) given intraperitoneally as single dose; group 3 - DL 1000mgkg(-1) per day given orally for 10days; group 4 - CP and DL given together at the same doses. CP caused a significant increase in thiobarbituric acid-reactive substances (TBARS) level and a significant decrease in superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT) and glutathione (GSH) levels in rats testis tissues compared to the control group. CP caused a significant increase in lipid peroxidation in testis tissues compared to the control group, whereas DL led to a significant increase in SOD and GSH levels. However, there were no statistically significant changes in GPx and CAT levels. In addition, serum testosterone levels, sperm concentration and sperm motility were significantly decreased, but abnormal sperm rate and histological changes were increased with CP. However, these effects of CP on sperm parameters, histological changes and the tissue weights were eliminated by DL treatment. In conclusion, our study showed that the reproductive toxicity caused by CP may be prevented by DL treatment.
Protocatechuic acid prevents reproductive damage caused by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in male rats
(Wiley, 2012) Beytur, A.; Ciftci, O.; Aydin, M.; Cakir, O.; Timurkaan, N.; Yilmaz, F.
In this study, it was aimed to determinate beneficial effects of protocatechuic acid (PCA) against reproductive toxicity caused by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), an environmental contaminant. For this purpose, 28 rats were equally divided into four groups (control, TCDD 2 mu g kg-1 per week, PCA 100 mg kg-1 per day and TCDD + PCA group), and compounds were orally administered for 45 days. The results indicated that TCDD induced oxidative stress via an increase in thiobarbituric acid-reactive substances levels and a decrease in reduced glutathione, catalase, glutathione peroxidise and SOD levels in male rats. In contrast, PCA treatment prevented toxic effects of TCDD in terms of oxidative stress. Additionally, sperm motility, sperm concentration and serum testosterone levels significantly decreased, and pathologic testicular damage increased with TCDD exposure. However, these effects of TCDD on sperm characteristics, histopathological changes and hormone levels were reversed by PCA treatment. In conclusion, it was found that TCDD exposure induced reproductive toxicity (oxidative, hormonal, histopathological and spermatological alternations) in male rats and PCA treatment could prevent toxic effects of TCDD. Thus, PCA may be useful for the prevention and treatment of reproductive toxicity caused by TCDD.
Quercetin prevents 2,3,7,8-tetrachlorodibenzo-p-dioxin-induced testicular damage in rats
(Wiley, 2012) Ciftci, O.; Aydin, M.; Ozdemir, I.; Vardi, N.
The protective effect of quercetin on 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)-induced testicular damage in rats was investigated. Twenty-two rats were equally divided into four groups; first group was kept as control and given corn oil as carrier. In second group, TCDD was orally administered at the dose of 2 mu (kg week)-1 for 60 days. In third group, quercetin was orally administered at the dose of 20 mg (kg day)-1 by gavages, and in fourth group TCDD and quercetin were given together at the same doses. Although TCDD increased the formation of thiobarbituric acid reactive substances (TBARS) significantly, it caused a significant decline in the levels of glutathione (GSH), catalase (CAT), GSH-Px and CuZn-Superoxide Dismutase (CuZn-SOD) in rats. In contrast, quercetin significantly increased the GSH, CAT, GSH-Px and CuZn-SOD levels but decreased the formation of TBARS. In addition, sperm motility, sperm concentration and serum testosterone levels were significantly decreased but abnormal sperm rate and testicular damage were increased with TCDD treatment. However, these effects of TCDD on sperm parameters, histological changes and hormone levels were eliminated by quercetin treatment. Our results show that administration of TCDD induces testicular damage (oxidative stress, testes tissue damage, serum hormone level and sperm parameters), and quercetin prevents TCDD-induced testicular damage in rats. Thus, quercetin may be useful for the prevention and treatment of TCDD-induced testicular damage.
Quercetin prevents docetaxel- induced testicular damage in rats
(Wiley, 2015) Altintas, R.; Ciftci, O.; Aydin, M.; Akpolat, N.; Oguz, F.; Beytur, A.
The protective effect of quercetin on docetaxel - an anticancer agent - induced testicular damage in rats was investigated. Thirty-two rats were randomly divided into four groups: group 1 - control, carrier solutions were given; group 2 - quarcetin 20mgkg(-1)day(-1) was given orally; group 3 - docetaxel 5mgkg(-1) was given intraperitoneally as single dose; group 4 - docetaxel and quarcetin were given together. The histopathological changes; the specific biochemical markers, including antioxidants; and the sperm characteristics were evaluated. Docetaxel caused a significant increase in TBARS level and a significant decrease in SOD, GPX, CAT and GSH levels in the testicular tissues compared with the control group, whereas quercetin led to a significant decrease in lipid peroxidation, which was caused by docetaxel, via reducing TBARS level and increasing the levels of SOD, CAT, GPX and GSH. In addition, after docetaxel administration, sperm motility, sperm concentration, testicular and epididymis weights were significantly decreased and abnormal sperm rate and histopathological changes were increased. However, these effects of docetaxel on sperm parameters, histological changes and the tissue weights were eliminated by quercetin treatment. Our results show that the administration of docetaxel induced the testicular damage (oxidative stress, testes tissue damage and sperm parameters), and quercetin prevented docetaxel-induced testicular damage in rats.

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