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Kandil B, Kurtdede N, Bayraktaroglu AG. Immunohistochemical localization and expression of heat shock proteins (HSP27, HSP60, HSP70, and HSP90) during the oestrous cycle, pregnancy, and lactation in rat ovaries. Acta Histochem 2024; 126:152157. [PMID: 38581753 DOI: 10.1016/j.acthis.2024.152157] [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: 09/11/2023] [Revised: 03/19/2024] [Accepted: 03/26/2024] [Indexed: 04/08/2024]
Abstract
This study aimed to determine the expressions of HSP27, HSP60, HSP70, and HSP90 in rat ovaries during the oestrous cycle, pregnancy, and lactation. In follicle cells, HSP27 and HSP70 expression was not observed. HSP60 in oocytes was higher in the early stages of follicular development but decreased and disappeared as the follicle grew. HSP60 in granulosa and theca cells increased with follicle development and decreased with atresia. HSP90 in follicle cells did not change during follicle development or atresia. The expression of HSPs in interstitial cells was higher in the proestrus and estrus phases of the estrous cycle. The expression of HSPs in these cells was higher on day 5 of pregnancy, decreased on day 10, and decreased further on days 15 and 20. The expression of HSPs, which decreased in the second half of pregnancy, increased again on the first day of lactation. The expression of HSPs then decreased on day 5 of lactation and further decreased on days 10 and 20. HSP60 and HSP90 were positive in new and old corpus luteums (CLs) and their expression did not change during luteal development or regression. HSP27 and HSP70 were absent in new CLs. HSP27 was positive in old CLs and showed the same staining pattern during luteal regression. HSP70 expression was determined in old cyclic CLs during the oestrous cycle and pregnancy and decreased with luteal regression. HSP70 expression in old pregnancy CLs during lactation was very weak compared to the oestrous cycle and pregnancy. In conclusion, HSP60 and HSP90 may participate in folliculogenesis, luteal development, and steroidogenesis in luteal cells, and HSP27, HSP60, HSP70, and HSP90 may be effective in luteal regression and steroidogenesis in interstitial cells. HSP27 and HSP70 may be used as markers to identify old CLs in rats.
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Affiliation(s)
- Banu Kandil
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Siirt University, Siirt, Turkey.
| | - Nevin Kurtdede
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Alev Gürol Bayraktaroglu
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
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Kaya S, Yalcın T, Tektemur A, Kuloğlu T. N-Acetylcysteine may exert hepatoprotective effect by regulating Meteorin-Like levels in Adriamycin-induced liver injury. Cell Stress Chaperones 2023; 28:849-859. [PMID: 37670199 PMCID: PMC10746670 DOI: 10.1007/s12192-023-01376-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 08/20/2023] [Accepted: 08/24/2023] [Indexed: 09/07/2023] Open
Abstract
Adriamycin (ADR) is an important chemotherapeutic drug, but it has serious side effects such as hepatotoxicity. This study aimed to evaluate whether N-acetylcysteine (NAC) has hepatoprotective effects against ADR-induced hepatotoxicity in rats. In addition, it was aimed to determine how Meteorin-Like (MtrnL), which has pleiotropic effects on immunology, inflammation, and metabolism, is affected by ADR and/or NAC applications in liver tissue. 28 rats were randomly assigned to one of four equal groups in the study: control (no treatment), NAC (150 mg/kg/day of NAC intraperitoneally (i.p), ADR (15 mg/kg only on the first day of the experiment), and ADR + NAC (ADR 15 mg/kg on the first day of the experiment + 150 mg/kg/day NAC i.p). After 15 days, liver enzyme levels in serum, oxidant/antioxidant parameters in liver tissue, histopathological changes, caspase 3 (Casp3) and heat shock protein 70 (HSP-70) immunoreactivities, and MtrnL levels were examined. Histopathological changes, liver enzyme levels, as well as HSP-70, and Casp3 immunoreactivities increased due to ADR application. Additionally, MtrnL levels in liver tissue were significantly increased as a result of ADR application. However, it was detected that the NAC application significantly regulated the ADR-induced changes. Furthermore, it was determined that NAC administration regulated the changes in ADR-induced oxidative stress parameters. We propose that NAC may exert a hepatoprotective effect by regulating ADR-induced altered oxidative stress parameters, MtrnL levels, Casp3, and HSP-70 immunoreactivities in the liver.
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Affiliation(s)
- Sercan Kaya
- Health Services Vocational School, Batman University, Batman, Turkey.
| | - Tuba Yalcın
- Health Services Vocational School, Batman University, Batman, Turkey
| | - Ahmet Tektemur
- Department of Medical Biology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Tuncay Kuloğlu
- Department of Histology and Embryology, Faculty of Medicine, Firat University, Elazig, Turkey
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Silva PS, Hooper HB, Manica E, Merighe GKF, Oliveira SA, Traldi AS, Negrão JA. Heat stress affects the expression of key genes in the placenta, placental characteristics, and efficiency of Saanen goats and the survival and growth of their kids. J Dairy Sci 2021; 104:4970-4979. [PMID: 33551154 DOI: 10.3168/jds.2020-18301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 11/09/2020] [Indexed: 01/18/2023]
Abstract
Heat stress is detrimental during gestation; however, the effects of heat stress on goat placental characteristics and kid survival remain unclear. The objective of this study was to evaluate the effects of heat stress at final gestation on cortisol concentration, placenta characteristics, and the expression of genes related to placenta. Forty-six primiparous and multiparous Saanen goats were subjected to control (CT; under a thermoneutral environment: air temperature between 12°C and 25°C and the relative humidity from 45 to 73%, n = 23) or heat stress (HS; under a climatic chamber: air temperature at 37°C and the relative humidity at 60 to 70% from 0800 to 1600 h, n = 23) from the last 60 d of pregnancy until the first colostrum suckling. The heat challenge imposed on HS goats during the prepartum period increased their rectal temperature, respiratory frequency, and cortisol levels in plasma and amniotic fluid versus CT goats. In the placenta, HS treatment also increased the expression of the HSPA1A gene. Heat-stressed goats also showed significantly lower expression of HSD11B2 and greater expression of MC2R and NR3C1 than CT goats, suggesting that heat stress decreased the effectiveness by which the HSD11B2 enzyme converts cortisol to cortisone and increased placental responsiveness to cortisol. The HS goats took longer to release the placenta with lighter placental cotyledons, and HS goats had a lower ratio between the kid's weight at birth and placenta weight than CT goats. There was no treatment effect on the kids' survival or weights at birth, but the kids from goats subjected to HS presented lesser cortisol concentration and greater mortality rates at weaning than kids from CT goats. Finally, the overexpression of HSPA1A by HS goats suggests a protective response of placenta. However, the heat stress negatively affected the placenta's expulsion length, placental cotyledons number, weight and area, the ratio between kid's weight and placenta weight, and cortisol signaling. Indeed, the upregulation of MC2R and NR3C1 and downregulation of HSD11B2 on placenta caused by heat stress were associated with greater cortisol concentrations in the amniotic fluid of HS goats. Although HS and CT kids had adequate weights and survival rate during the first weeks of life, the heat stress increased the mortality at weaning of HS kids versus CT kids, suggesting that the heat stress effect persists and can change the ability of kids to respond to weaning challenge.
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Affiliation(s)
- P S Silva
- Department of Basic Sciences, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, 13635-900, Brazil
| | - H B Hooper
- Department of Basic Sciences, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, 13635-900, Brazil
| | - E Manica
- Department of Basic Sciences, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, 13635-900, Brazil
| | - G K F Merighe
- Department of Basic Sciences, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, 13635-900, Brazil
| | - S A Oliveira
- Department of Basic Sciences, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, 13635-900, Brazil
| | - A S Traldi
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, São Paulo, 13635-900, Brazil
| | - J A Negrão
- Department of Basic Sciences, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, 13635-900, Brazil.
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Şensoy E, Öznurlu Y. Determination of the changes on the small intestine of pregnant mice by histological, enzyme histochemical, and immunohistochemical methods. TURKISH JOURNAL OF GASTROENTEROLOGY 2020; 30:917-924. [PMID: 31625934 DOI: 10.5152/tjg.2019.18681] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND/AIMS The aim of the present study was to determine the changes on the small intestine in mice during pregnancy using histological, enzyme histochemical, and immunohistochemical methods. MATERIALS AND METHODS A total of 24 Swiss albino female mice were divided as non-pregnant/control, first week, second week, and third week of pregnancy (n=6). Tissue samples obtained from the duodenum, jejunum, and ileum were processed by means of routine histological techniques and stained with Crossmon's triple staining. Alkaline phosphatase (ALP) was demonstrated with the simultaneous azo-coupling method. Proliferating cell nuclear antigen (PCNA) was demonstrated with the streptavidin-biotin-peroxidase complex method. The numerical data of the parameters were obtained and analyzed statistically. RESULTS Villus height, villus width, and the rate of villus height/crypt depth were decreased in the duodenum, jejunum, and ileum in the last week of pregnancy compared with the control group. Changes in the crypt depth of the duodenum, jejunum, and ileum in pregnancy were found. The muscle width increased in pregnancy. It was identified that the ALP reactivity statistically significantly increased in the duodenum, jejunum, and ileum in pregnancy. The percentage of PCNA-positive cells in the duodenum, jejunum, and ileum increased in the first and second weeks of pregnancy, whereas it decreased in the third week of pregnancy compared with non-pregnant control animals. CONCLUSION In conclusion, villus parameters, ALP reactivity, and percentage of PCNA-positive cells in the small intestine were affected during pregnancy.
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Affiliation(s)
- Erhan Şensoy
- Department of Midwifery, Karamanoğlu Mehmetbey University School of Health Sciences, Karaman, Turkey
| | - Yasemin Öznurlu
- Department of Histology and Embryology, Selçuk University School of Veterinary, Konya, Turkey
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Hooper H, Silva PDS, de Oliveira S, Meringhe G, Lacasse P, Negrão J. Effect of heat stress in late gestation on subsequent lactation performance and mammary cell gene expression of Saanen goats. J Dairy Sci 2020; 103:1982-1992. [DOI: 10.3168/jds.2019-16734] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 10/07/2019] [Indexed: 12/19/2022]
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Göksever Çelik H, Uhri M, Yildirim G. Expression of von Willebrand factor and caldesmon in the placental tissues of pregnancies complicated with intrauterine growth restriction. J Matern Fetal Neonatal Med 2017; 32:916-921. [PMID: 29046106 DOI: 10.1080/14767058.2017.1395017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE The decreased placental perfusion is the underlying reason for intrauterine growth restriction that in turn leads to reduced placental perfusion and ischemia. However, there are several issues to be understood in the pathophysiology of intrauterine growth restriction. We aimed to study whether any compensatory response in placental vascular bed occur in pregnancies complicated with intrauterine growth restriction by the immunohistochemical staining of von Willebrand factor and caldesmon in placental tissues. MATERIALS AND METHODS A total of 103 pregnant women was enrolled in the study including 50 patients who were complicated with IUGR and 50 uncomplicated control patients. The study was designed in a prospective manner. All placentas were also stained with von Willebrand factor and caldesmon monoclonal kits. RESULTS The immunohistochemical staining of von Willebrand factor and caldesmon expressions in placental tissues were different between normal and intrauterine growth restriction group. The percentages of 2+ and 3+ von Willebrand factor expression were higher in the intrauterine growth restriction group comparing with the normal group, although the difference was not statistically significant. The intensity of caldesmon expression was significantly lower in the intrauterine growth restriction group in comparison with the normal group (p < .001). CONCLUSION Angiogenesis occurs as a placental response to intrauterine growth restriction which is a hypoxic condition. But newly formed vessels are immature and not strong enough. Our study is important to clarify the pathophysiology and placental compensatory responses in intrauterine growth restriction.
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Affiliation(s)
- Hale Göksever Çelik
- a Department of Obstetrics and Gynecology , Istanbul Saglik Bilimleri University Kanuni Sultan Suleyman Training and Research Hospital , Istanbul , Turkey
| | - Mehmet Uhri
- b Department of Pathology , Istanbul Saglik Bilimleri University Kanuni Sultan Suleyman Training and Research Hospital , Istanbul , Turkey
| | - Gökhan Yildirim
- a Department of Obstetrics and Gynecology , Istanbul Saglik Bilimleri University Kanuni Sultan Suleyman Training and Research Hospital , Istanbul , Turkey
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Kreisman MJ, Song CI, Yip K, Natale BV, Natale DR, Breen KM. Androgens Mediate Sex-Dependent Gonadotropin Expression During Late Prenatal Development in the Mouse. Endocrinology 2017; 158:2884-2894. [PMID: 28911172 PMCID: PMC5659668 DOI: 10.1210/en.2017-00285] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/05/2017] [Indexed: 12/22/2022]
Abstract
Central organization of the hypothalamic-pituitary-gonadal axis is initiated during fetal life. At this critical time, gonadal hormones mediate sex-specific development of the hypothalamic-pituitary axis, which then dictates reproductive physiology and behavior in adulthood. Although studies have investigated the effects of prenatal androgens on central factors influencing gonadotropin-releasing hormone (GnRH) release, the impact of fetal androgens on gonadotrope function has been overlooked. In the current study, we demonstrated that gonadotropin gene expression and protein production were robustly elevated in female mice compared with males during late fetal development and that this sex difference was dependent on fetal androgens. Treatment of dams from embryonic day (E)15.5 to E17.5 with testosterone, dihydrotestosterone (DHT), or the androgen antagonist flutamide eliminated the sex difference at E18.5. Specifically, flutamide relieved the suppression in male gene expression, elevating the level to that of females, whereas testosterone or DHT attenuated female gene expression to male levels. The gonadotrope population is equivalent in males and females, and gonadotropic cells in both sexes express androgen receptors, suggesting that androgen-dependent transcriptional regulation can occur in these cells in either sex. Studies using mouse models lacking GnRH signaling show that GnRH is necessary for enhanced gonadotropin expression in females and is therefore required to observe the sex difference. Collectively, these data suggest that circuits controlling GnRH input to the fetal pituitary are unrestrained in females yet robustly inhibited in males via circulating androgens and demonstrate plasticity in gonadotropin synthesis and secretion in both sexes depending on the androgen milieu during late prenatal development.
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Affiliation(s)
- Michael J. Kreisman
- Department of Reproductive Medicine, University of California, San Diego, La Jolla, California 92093-0674
- Center for Reproductive Science and Medicine, University of California, San Diego, La Jolla, California 92093-0674
| | - Christopher I. Song
- Department of Reproductive Medicine, University of California, San Diego, La Jolla, California 92093-0674
- Center for Reproductive Science and Medicine, University of California, San Diego, La Jolla, California 92093-0674
| | - Kathleen Yip
- Department of Reproductive Medicine, University of California, San Diego, La Jolla, California 92093-0674
- Center for Reproductive Science and Medicine, University of California, San Diego, La Jolla, California 92093-0674
| | - Bryony V. Natale
- Department of Reproductive Medicine, University of California, San Diego, La Jolla, California 92093-0674
| | - David R. Natale
- Department of Reproductive Medicine, University of California, San Diego, La Jolla, California 92093-0674
| | - Kellie M. Breen
- Department of Reproductive Medicine, University of California, San Diego, La Jolla, California 92093-0674
- Center for Reproductive Science and Medicine, University of California, San Diego, La Jolla, California 92093-0674
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