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Duan H, Wang F, Wang K, Yang S, Zhang R, Xue C, Zhang L, Ma X, Du X, Kang J, Zhang Y, Zhao X, Hu J, Xiao L. Quercetin ameliorates oxidative stress-induced apoptosis of granulosa cells in dairy cow follicular cysts by activating autophagy via the SIRT1/ROS/AMPK signaling pathway. J Anim Sci Biotechnol 2024; 15:119. [PMID: 39232832 PMCID: PMC11375867 DOI: 10.1186/s40104-024-01078-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 07/14/2024] [Indexed: 09/06/2024] Open
Abstract
BACKGROUND Follicular cysts contribute significantly to reproductive loss in high-yield dairy cows. This results from the death of follicular granulosa cells (GCs) caused by oxidative stress. Quercetin is known to have significant antioxidant and anti-apoptotic effects. However, the effect of quercetin on follicular cysts has yet been elucidated. Therefore, this study aimed to explore the anti-oxidant and anti-apoptosis effects and potential molecular mechanisms of quercetin in H2O2-induced primary cow GCs and 3-nitropropionic acid (3-NPA)-induced mouse model of oxidative stress and thus treat ovarian cysts in dairy cows. RESULTS In this study, compared with estrus cows, cows with follicular cysts showed heightened levels of oxidative stress and increased follicular cell apoptosis, while autophagy levels were reduced. A model of oxidative stress was induced in vitro by H2O2 and showed significant increases in apoptosis together with reduced autophagy. These effects were significantly ameliorated by quercetin. Effects similar to those of quercetin were observed after treatment of cells with the reactive oxygen species (ROS) inhibitor N-acetylcysteine (NAC). Further investigations using chloroquine (autophagy inhibitor), rapamycin (autophagy activator), selisistat (SIRT1 inhibitor), and compound C (AMPK inhibitor) showed that chloroquine counteracted the effects of quercetin on oxidative stress-induced apoptosis, while rapamycin had the same effect as quercetin. In addition, the SIRT1/AMPK pathway inhibitors antagonized quercetin-mediated mitigation of the effects of oxidative stress on increased apoptosis and reduced autophagy. Consistent with the results in vitro, in mouse ovarian oxidative stress model induced by 3-NPA, quercetin activated autophagy through the SIRT1/AMPK signaling pathway, while alleviating oxidative stress damage and inhibiting apoptosis in mouse ovaries. CONCLUSIONS These findings indicate that quercetin can inhibit apoptosis in GCs and restore ovarian function by activating autophagy through the SIRT1/ROS/AMPK signaling pathway, suggesting a new direction for the treatment of ovarian follicular cysts in high-yield dairy cows.
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Affiliation(s)
- Hongwei Duan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Fang Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Ke Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Institute of Animal Husbandry and Veterinary, Pingliang, 744000, Gansu, China
| | - Shuai Yang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Rong Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Chen Xue
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Lihong Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Xiaofei Ma
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Xianghong Du
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Jian Kang
- School of Animal Science and Technology, Guangdong Polytechnic of Science and Trade, Guangzhou, 510640, Guangdong, China
| | - Yong Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Xingxu Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China
| | - Junjie Hu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China.
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, 730070, Gansu, China.
| | - Longfei Xiao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, Gansu, China.
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China.
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Taktaz T, Kafi M, Mokhtari A, Heidari M. Reproductive responses of dairy cows with ovarian cysts to simultaneous human chorionic gonadotropin or gonadotropin-releasing hormone and cloprostenol compared to gonadotropin-releasing hormone alone treatment. Vet World 2015; 8:640-4. [PMID: 27047149 PMCID: PMC4774727 DOI: 10.14202/vetworld.2015.640-644] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 04/13/2015] [Accepted: 04/21/2015] [Indexed: 11/16/2022] Open
Abstract
Aim: Bovine ovarian cysts are a common cause of economic loss in modern dairy herds. The objective of the present study was to evaluate the reproductive responses to three protocols using hCG, GnRH and cloprostenol when the definite diagnosis of the type of ovarian cyst is/is not possible in dairy cows. Materials and Methods: A total of 144 lactating dairy cows with ovarian cysts were divided into three groups. At diagnosis (Day 0), cows in Group 1 (the conventional method, n=47) were injected with 0.02 mg of a GnRH analogue i.m. (Buserelin); cows in Group 2 (n=47) were intramuscularly treated with 0.02 mg Buserelin plus 500 µg cloprostenol; and cows in Group 3 (n=50) were intramuscularly treated with 1500 IU hCG plus 500 µg cloprostenol. All cows received 500 µg cloprostenol intramuscularly on Day 10. Results: No statistically significant differences were found in the recovery time, interval to conception, conception rate at first AI, and pregnancy rates by Days 70 and 100 after treatment among the three groups. Conclusions: Simultaneous treatment of ovarian cysts with hCG or GnRH and cloprostenol appeared to have no advantage over the conventional method, GnRH alone, in dairy cows. Furthermore, hCG and GnRH have an equal therapeutic effect in cows with ovarian cysts.
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Affiliation(s)
- T Taktaz
- Department of Animal Clinical Science, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - M Kafi
- Department of Animal Reproduction, Faculty of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Adel Mokhtari
- Department of Animal Reproduction, Faculty of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - M Heidari
- Department of Animal Clinical Science, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
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Moreira F, Orlandi C, Risco CA, Mattos R, Lopes F, Thatcher WW. Effects of presynchronization and bovine somatotropin on pregnancy rates to a timed artificial insemination protocol in lactating dairy cows. J Dairy Sci 2001; 84:1646-59. [PMID: 11467815 DOI: 10.3168/jds.s0022-0302(01)74600-0] [Citation(s) in RCA: 369] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The objective was to examine the effects of presynchronization and bovine somatotropin (bST) on pregnancy rates to a timed artificial insemination protocol in lactating dairy cows. Lactating Holstein cows (n = 543) were assigned randomly in a 2 x 3 factorial experiment in which cows received a presynchronization treatment or not, and were treated with bST (500 mg) at 63 +/- 3, 73 +/- 3, or 147 +/- 3 d postpartum. The latter group was used as a control. Presynchronization treatment consisted of two injections of PGF2alpha (25 mg) given 14 d apart, with the second injection of PGF2alpha being administered 12 d before initiation of the timed artificial insemination protocol. All cows received GnRH (100 microg) at 63 +/- 3 d postpartum, an injection of PGF2alpha (40 mg) 7 d later, a GnRH injection at 48 h after PGF2alpha and were inseminated 16 to 20 h later. Cows were resynchronized if determined to be nonpregnant at ultrasonography at 32 d after insemination with a GnRH injection (100 microg), an injection of PGF2alpha (40 mg) 7 d later, and a GnRH injection at 48 h after PGF2alpha and were inseminated 16 to 20 h later. Cows were examined for pregnancy at 32 d and reexamined at 74 d after insemination. No differences in pregnancy rates were observed between cows receiving bST treatment at 63 +/- 3 d postpartum or at 73 +/- 3 d postpartum. An interaction between presynchronization and bST treatment indicated that pregnancy rates were increased for cows treated with bST when cows were presynchronized. When anestrous cows were excluded from the analyses, both an effect of bST and of presynchronization were observed, indicating that bST increased pregnancy rates regardless of presynchronization treatment and that presynchronization also increased pregnancy rates independently of bST treatment. Presynchronization and bST treatment may be used to increase first-service pregnancy rates to a timed artificial insemination protocol.
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Affiliation(s)
- F Moreira
- Department of Dairy and Poultry Sciences, University of Florida, Gainesville 32611, USA
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Ribadu AY, Nakada K, Moriyoshi M, Zhang WC, Tanaka Y, Nakao T. The role of LH pulse frequency in ACTH-induced ovarian follicular cysts in heifers. Anim Reprod Sci 2000; 64:21-31. [PMID: 11078964 DOI: 10.1016/s0378-4320(00)00196-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of the present study was to induce ovarian cysts experimentally in cattle using ACTH and to closely examine the role of LH pulse frequency in ovarian cyst formation. Five regularly cycling Holstein-Friesian heifers (15-18-month-old) were used. Ovaries were scanned daily using an ultrasound scanner with a 7.5 MHz rectal transducer. Daily blood samples were obtained via tail venepuncture for hormone analyses. Additional blood samples (for FSH and LH pulses) were obtained through an indwelling jugular vein catheters every 15 min for 8 h on Days 2 (early luteal phase; ELP), 12 (mid-luteal phase; MLP) and 19 (follicular phase; FP) of control estrous cycle and on alternate days during follicular cyst (FC) formation and persistence. Cysts were induced using subcutaneous injections of ACTH (Cortrosyn) Z; 1 mg) every 12 h for 7 days beginning on Day 15 of the subsequent estrous cycle. Plasma concentrations of progesterone (P4), estradiol-17beta, FSH and LH were determined by double antibody radioimmunoassay while cortisol concentration was determined by enzyme immunoassay (EIA). Ovarian follicular and endocrine dynamics were normal during the control estrous cycles. Ovarian follicular cysts were induced in four of the five heifers. Mean maximum size of cysts was larger (P<0.05) than that of ovulatory follicles (26.78+/-3.65 versus 14.1+/-0.90 mm), respectively. Cortisol levels were increased during ACTH treatment. High concentrations of estradiol and low progesterone were observed after cyst formation. LH pulse frequency was significantly reduced (P<0.05) during cyst formation and persistence compared to ELP (7.5+/-0.75) and FP (6.5+/-0.58), but was not significantly (P=0.23) different from MLP (2.8+/-0.29) pulses. Mean LH pulse amplitude and concentrations were not different. Similarly, the mean pulse frequency, amplitude and concentration of FSH were not different between control study and cystic heifers. These results suggest that the LH pulse frequency observed following ACTH treatment may interact with high estradiol concentration to induce ovarian cyst formation in heifers.
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Affiliation(s)
- A Y Ribadu
- Department of Veterinary Obstetrics and Gynaecology, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, 069-8501, Hokkaido, Japan.
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