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Zaychenko G, Belenichev I, Hnatiuk V, Doroshenko A, Sinitsyna O, Sulaieva O, Falalyeyeva T, Kobyliak N. Protective effect of vaginal resveratrol administration on joint tissues in ovariectomized rats: Targeting mTOR and сaspase 3. Biomed Pharmacother 2023; 165:115176. [PMID: 37480827 DOI: 10.1016/j.biopha.2023.115176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/04/2023] [Accepted: 07/12/2023] [Indexed: 07/24/2023] Open
Abstract
INTRODUCTION Estrogens play a considerable role in maintaining bone and articular cartilage homeostasis. Menopause provokes joint disorders due to metabolic syndrome and altered signaling pathways. Phytoestrogen resveratrol was demonstrated to provide chondroprotective and osteoprotective effects. However, the mechanisms of such action of Resveratrol are still being explored. AIM The study aims to determine the effect of Resveratrol on the joints and its therapeutic mechanism in ovariectomized rats. MATERIAL AND METHODS The study was carried out on Wistar female rats that were divided into three groups, including control animals; ovariectomized rats (OVX); and the OVX group treated with an intravaginal gel containing Resveratrol (0.5 % 0.1 mL, daily 28 days). Knee joint tissues (articular cartilage, subchondral plate, subchondral bone) were assessed by histomorphometry. The expression of mTOR, PTEN, Caspase 3 and BCL-2 in articular cartilage and subchondral bone were evaluated immunohistochemically. RESULTS Resveratrol treatment of OVX rats prevented weight gain by 17 % (P < 0.001), demonstrating the systemic effect on metabolic pathways. Although there were no statistically significant differences in the thickness of articular cartilage between groups, OVX rats possessed degenerative changes in chondrocytes, associated with the enhanced expression of mTOR (P < 0.001) and Casp-3 (P = 0.005). Resveratrol decreased mTOR (P = 0.007) and Casp-3 (P = 0.011) expression in chondrocytes, reducing degenerative changes. At the same time, resveratrol attenuated the deterioration of trabecular bone in OVX rats (P = 0.002). This effect was through the up-regulation of BCL-2 (P = 0.018) and down-regulation of Casp-3 expression (P < 0.001). CONCLUSIONS Intravaginal administration of resveratrol provided systemic effects and ameliorated joint tissue structure and signaling in OVX rats through stimulation of BCL-2 and reduced Casp-3 expression.
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Affiliation(s)
- Ganna Zaychenko
- Pharmacology Department, Bogomolets National Medical University, Kyiv, Ukraine.
| | - Igor Belenichev
- Department of Pharmacology and Medical Formulation with Course of Normal Physiology Zaporizhzhya State Medical University, Zaporizhzhya 69000, Ukraine
| | - Valeriia Hnatiuk
- Pharmacology Department, Bogomolets National Medical University, Kyiv, Ukraine
| | - Andrii Doroshenko
- Department of Pharmacology and Medical Formulation with Course of Normal Physiology Zaporizhzhya State Medical University, Zaporizhzhya 69000, Ukraine
| | - Oksana Sinitsyna
- Department of Clinical Pharmacology, Institute for Advanced Training of Pharmacy Specialists, National University of Pharmacy, Kharkiv 61002, Ukraine
| | | | - Tetyana Falalyeyeva
- Medical Laboratory CSD, Kyiv 02000, Ukraine; Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine
| | - Nazarii Kobyliak
- Medical Laboratory CSD, Kyiv 02000, Ukraine; Endocrinology Department, Bogomolets National Medical University, Kyiv 01601, Ukraine.
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Zaychenko G, Stryga O, Sinitsyna O, Doroshenko A, Sulaieva O, Falalyeyeva T, Kobyliak N. Resveratrol Effects on the Reproductive System in Ovariectomized Rats: Deciphering Possible Mechanisms. Molecules 2022; 27:molecules27154916. [PMID: 35956866 PMCID: PMC9370311 DOI: 10.3390/molecules27154916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 11/16/2022] Open
Abstract
Phytoestrogen resveratrol (R) has been demonstrated to benefit human reproductive health. However, R bioavailability and pharmacokinetics are still problematic under oral supplementation. We used an experimental vaginal gel with R and hyaluronic acid (HA) to improve bioavailability and pharmacokinetic properties. The study aimed to assess the impact of vaginal R-HA gel on the reproductive system in ovariectomized rats. Methods: The study was carried out on Wistar female rats. It investigated the body weight, tail temperature, vaginal pH, estrogen and progesterone blood levels, and immunohistochemical biomarkers (COX2, Casp-3, Bcl-2, and VEGF). Animals were divided into control animals; ovariectomized rats (OVX); and OVX group treated with vaginal 0.5% R-HA gel (0.5%, 0.1 mL, daily 28 days). Results: The R-HA gel’s therapeutic effect was manifested by slowing weight gain by 17% (p < 0.001), less pronounced symptom of fever at the root of the tail by 9% (p < 0.001) and lowering the vaginal pH to 4.4−4.5 compared with OVX rats. The anti-inflammatory effect and the reduction of COX-2 expression in vagina were accompanied by antiapoptotic impact of RA-H on endometrium, associated with the decreased Casp-3 expression (p < 0.001) and elevated Bcl-2 score in endometrial glands (p = 0.01). Together with enhanced VEGF expression in endometrial glands (p < 0.001) and stromal cells (p = 0.007), these changes prevented endometrial atrophy (p < 0.001) after ovariectomy. Thus, this study substantiates the feasibility of developing an innovative topical drug with R and HA for treating hypoestrogenic disorders.
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Affiliation(s)
- Ganna Zaychenko
- Pharmacology Department, Bogomolets National Medical University, 01601 Kyiv, Ukraine; (O.S.); (A.D.)
- Correspondence: (G.Z.); (N.K.); Tel./Fax: +380-44-454-49-24 (G.Z.); +380-44-235-60-05 (N.K.)
| | - Olena Stryga
- Pharmacology Department, Bogomolets National Medical University, 01601 Kyiv, Ukraine; (O.S.); (A.D.)
| | - Oksana Sinitsyna
- Department of Clinical Pharmacology, Institute of Improvement Qualification of Pharmacy Specialists, National University of Pharmacy, 61002 Kharkiv, Ukraine;
| | - Anna Doroshenko
- Pharmacology Department, Bogomolets National Medical University, 01601 Kyiv, Ukraine; (O.S.); (A.D.)
| | | | - Tetyana Falalyeyeva
- Medical Laboratory CSD, 03122 Kyiv, Ukraine; (O.S.); (T.F.)
- Department of Biomedicine, Taras Shevchenko National University of Kyiv, 01033 Kyiv, Ukraine
| | - Nazarii Kobyliak
- Medical Laboratory CSD, 03122 Kyiv, Ukraine; (O.S.); (T.F.)
- Endocrinology Department, Bogomolets National Medical University, 01601 Kyiv, Ukraine
- Correspondence: (G.Z.); (N.K.); Tel./Fax: +380-44-454-49-24 (G.Z.); +380-44-235-60-05 (N.K.)
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Chagas DC, da Conceição Barros-Oliveira M, Lopes-Costa PV, de Oliveira Pereira R, de Almeida Melo M, Costa-Silva DR, Borges CS, Viana JL, dos Santos AR, Facina G, da Silva BB. Effects of anastrozole on Ki-67 antigen expression in the vaginal epithelium of female rats in persistent estrus. Clinics (Sao Paulo) 2020; 75:e1643. [PMID: 32267395 PMCID: PMC7098419 DOI: 10.6061/clinics/2020/e1643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 01/17/2020] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES Aromatase inhibitors are the first-choice drugs for the treatment of hormone sensitive breast cancer. However, in addition to the scarcity of studies, there are controversies about their effects on vaginal epithelial cell proliferation in rats, especially those in persistent estrus. METHODS To investigate vaginal epithelial cell proliferation by Ki-67 antigen expression, persistent estrus was induced in 42 randomly selected rats. These rats were randomly divided into 2 groups: group I (control, n=21), which received 0.1 mL of propylene glycol (vehicle) daily, and group II (experimental, n=21), which received 0.5 mg/kg or 0.125 mg/day of anastrozole diluted with 0.1 mL of propylene glycol. RESULTS Light microscopy showed a higher concentration of cells with brown Ki-67 stained nuclei in the control compared to the experimental group. The mean percentage of Ki-67 stained nuclei per 500 cells in the vaginal epithelium was 68.64±2.64 and 30.46±2.00 [mean±standard error of the mean (SEM)] in the control and experimental groups, respectively (p<0.003). CONCLUSION This study showed that anastrozole, at the dose and treatment duration selected, significantly decreased cell proliferation in the vaginal mucosa of the rats in persistent estrus.
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Affiliation(s)
- Diego Cipriano Chagas
- Programa de Pos Graduacao em Ciencias da Saude, Universidade Federal do Piaui, Teresina, PI, BR
| | | | - Pedro Vitor Lopes-Costa
- Programa de Pos Graduacao em Ciencias da Saude, Universidade Federal do Piaui, Teresina, PI, BR
| | | | | | - Danylo Rafhael Costa-Silva
- Programa de Pos Graduacao, Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal do Piaui, Teresina, PI, BR
| | | | | | - Alesse Ribeiro dos Santos
- Programa de Pos Graduacao, Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal do Piaui, Teresina, PI, BR
| | - Gil Facina
- Departamento Ginecologia, Universidade Federal de Sao Paulo, Sao Paulo, SP, BR
| | - Benedito Borges da Silva
- Programa de Pos Graduacao em Ciencias da Saude, Universidade Federal do Piaui, Teresina, PI, BR
- Hospital Getulio Vargas, Universidade Federal do Piaui, Teresina, PI, BR
- *Corresponding author. E-mail:
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Barros-Oliveira MDC, Costa-Silva DR, Andrade DBD, Borges US, Silva VC, Borges RS, Lopes-Costa PV, Alencar AP, da Silva BB. Ki-67 antigen expression in the mammary epithelium of female rats in persistent estrus treated with anastrozole. Gynecol Endocrinol 2017; 33:359-362. [PMID: 28277134 DOI: 10.1080/09513590.2017.1290065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVES To evaluate Ki-67 antigen expression in mammary epithelium of female rats in persistent estrus treated with anastrozole. MATERIALS AND METHODS Twenty-eight Wistar-Hanover female rats in persistent estrus induced by subcutaneous injection of 1.25 mg of testosterone propionate in the second day of life were randomly divided into two groups, control and experimental, with 14 animals each. The animals of control group received only the vehicle (propyleneglycol) and the animals of group experimental received 0.125 mg daily of anastrozole by gavage during 28 days. After 28 days of treatment, all animals were sacrificed and the first pair of abdominal-inguinal mammary glands was removed and fixed in 10% buffered formalin to investigate Ki-67 antigen expression by immunohistochemistry. RESULTS The mean percentage of Ki-67-stained nuclei per 500 cells in the mammary epithelium was 76.97 ± 0.76 and 14.44 ± 2.02 [mean ± standard error of the mean (SEM)] in the control and experimental groups, respectively (p < 0.0001). CONCLUSIONS Anastrozole treatment significantly reduced Ki-67 expression in the mammary epithelium of rats in persistent estrus.
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Affiliation(s)
| | | | | | - Umbelina Soares Borges
- a Posgraduate Program of Sciences and Health, Federal University of Piauí , Teresina , Brazil
| | - Vladimir Costa Silva
- a Posgraduate Program of Sciences and Health, Federal University of Piauí , Teresina , Brazil
| | - Rafael Soares Borges
- a Posgraduate Program of Sciences and Health, Federal University of Piauí , Teresina , Brazil
| | - Pedro Vitor Lopes-Costa
- a Posgraduate Program of Sciences and Health, Federal University of Piauí , Teresina , Brazil
- b Mastology Unit of Getulio Vargas Hospital, Federal University of Piauí , Teresina , Brazil , and
| | | | - Benedito Borges da Silva
- a Posgraduate Program of Sciences and Health, Federal University of Piauí , Teresina , Brazil
- b Mastology Unit of Getulio Vargas Hospital, Federal University of Piauí , Teresina , Brazil , and
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