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Paulino LRFM, Cunha EV, Barbalho Silva AW, Souza GB, Lopes EPF, Donato MAM, Peixoto CA, Matos-Brito BG, van den Hurk R, Silva JRV. Effects of tumour necrosis factor-alpha and interleukin-1 beta on in vitro development of bovine secondary follicles. Reprod Domest Anim 2018; 53:997-1005. [DOI: 10.1111/rda.13199] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/30/2017] [Accepted: 04/02/2018] [Indexed: 11/29/2022]
Affiliation(s)
| | - Ellen V. Cunha
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral Brazil
| | | | - Glaucinete B. Souza
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral Brazil
| | - Ewerton P. F. Lopes
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral Brazil
| | | | | | - Bruno G. Matos-Brito
- Biotechnology Nucleus of Sobral - NUBIS; Federal University of Ceara; Sobral Brazil
| | - Robert van den Hurk
- Department of Pathobiology; Faculty of Veterinary; Utrecht University; Utrecht The Netherlands
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Silva A, Passos J, Dau A, De Cesaro M, Ferst J, dos Santos JT, Bezerra F, Costa J, Paulino L, Donato M, Peixoto C, Gonçalves P, Silva J. In vivo effects of GnRH on expression of interleukin 1 (IL-1) system members in bovine preovulatory follicles and the influence of IL-1β on cumulus-oocyte complexes cultured in vitro. Livest Sci 2017. [DOI: 10.1016/j.livsci.2017.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vashisht M, Rani P, Sunita, Onteru SK, Singh D. Curcumin primed exosomes reverses LPS‐induced pro‐inflammatory gene expression in buffalo granulosa cells. J Cell Biochem 2017; 119:1488-1500. [DOI: 10.1002/jcb.26309] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 08/02/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Monika Vashisht
- Molecular Endocrinology, Functional Genomics and System Biology Laboratory, Animal Biochemistry DivisionICAR‐National Dairy Research InstituteKarnalHaryanaIndia
| | - Payal Rani
- Molecular Endocrinology, Functional Genomics and System Biology Laboratory, Animal Biochemistry DivisionICAR‐National Dairy Research InstituteKarnalHaryanaIndia
| | - Sunita
- Molecular Endocrinology, Functional Genomics and System Biology Laboratory, Animal Biochemistry DivisionICAR‐National Dairy Research InstituteKarnalHaryanaIndia
| | - Suneel Kumar Onteru
- Molecular Endocrinology, Functional Genomics and System Biology Laboratory, Animal Biochemistry DivisionICAR‐National Dairy Research InstituteKarnalHaryanaIndia
| | - Dheer Singh
- Molecular Endocrinology, Functional Genomics and System Biology Laboratory, Animal Biochemistry DivisionICAR‐National Dairy Research InstituteKarnalHaryanaIndia
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Fogacci MF, da Silva Barbirato D, Rodrigues MO, da Silva Furtado Amaral C, Carvalho DP. Periodontitis and Infertility: An Evidence-Based Review. ACTA ACUST UNITED AC 2016. [DOI: 10.17352/gjfr.000003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Fogacci MF, Barbirato DDS, Amaral CDSF, da Silva PG, Coelho MDO, Bertozi G, de Carvalho DP, Leão ATT. No association between periodontitis, preterm birth, or intrauterine growth restriction: experimental study in Wistar rats. Am J Obstet Gynecol 2016; 214:749.e1-749.e11. [PMID: 26694136 DOI: 10.1016/j.ajog.2015.12.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 11/14/2015] [Accepted: 12/07/2015] [Indexed: 01/22/2023]
Abstract
BACKGROUND The biologic plausibility of the possible association between periodontitis and adverse pregnancy outcomes has been assessed with the use of different experimental models. However, most experimental studies did not induce periodontitis in the animals but promoted an acute microbial challenge with selected periodontal pathogens or their products subcutaneous or intravenous or intraamniotic. The present study was then conducted to verify the biologic plausibility of such association by experimentally inducing periodontitis in Wistar rats. OBJECTIVE An experimental study on an animal model by the induction of periodontitis in 50% of sites and assessment of the presence of cytokines in the gingival tissue, serum, placenta, cord, and amniotic fluid was designed to test the null hypothesis that experimental periodontitis that is induced on rats does not result in adverse pregnancy outcomes. STUDY DESIGN Forty female Wistar rats were included in 2 groups: a periodontally healthy (without ligatures) and an experimentally induced periodontitis group (test, with ligatures). Forty-five days after the induction, the mating was initiated. Males were placed with females in the ratio of 1:2 for a period of 12 hours. The bodyweight of the female, from then on, was recorded daily. When the pregnancy was confirmed on day 20, laparotomy was performed. The amniotic fluid, placenta, umbilical cord, blood (serum) and maternal and gingival tissue samples were subjected to quantitative analysis for interleukin 1α, -6, -10, -4, -12p70, and -17a, tumor necrosis factor-α, and interferon-γ by multiplex methods. Mean scores, standard deviations, and standard errors for estimated measures were calculated. For cytokines analyses, the Mann-Whitney test was conducted to compare the concentration of the analytes from control and test groups in the different tissues samples. For comparison of cytokines reduction from gingival tissue to serum and from serum to placenta, the Wilcoxon Test was performed. Spearman's correlation was conducted among cytokines in the 5 different tissues that were evaluated. RESULTS The induced periodontitis in Wistar rats did not result in adverse outcomes of pregnancy. There were no statistically significant differences between groups in relation to prematurity, fetal, or birth weight. Regarding cytokines, there were no statistically significant differences in concentrations that were measured in each tissue between the groups with periodontitis and controls. Furthermore, all cytokine levels in the placenta, except interleukin-6, were diminished compared with the amniotic fluid or maternal serum, which suggested that the cytokines cannot easily be transferred via this tissue in maternal-fetal or fetomaternal direction. The fertility rate was reduced significantly in the group with periodontitis. CONCLUSION Periodontitis that is induced in rats is not a risk factor for preterm birth or low birthweight.
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Affiliation(s)
- Mariana Fampa Fogacci
- Department of Dental Clinic, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Davi da Silva Barbirato
- Department of Dental Clinic, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; Environmental Biogeochemistry Wolfgang C. Pfeiffer Laboratory, Federal University of Rondonia (UNIR)
| | - Cristine da Silva Furtado Amaral
- Department of Dental Clinic, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; Department of Psychology and Dental Clinic, Veiga de Almeida University, Rio de Janeiro, Brazil
| | | | | | - Giuliana Bertozi
- Medical School of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Denise Pires de Carvalho
- Division of Graduate Periodontics, and the Laboratory of Endocrine Physiology, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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6
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Intracellular lipid dysregulation interferes with leukocyte function in the ovaries of meat-type hens under unrestricted feed intake. Anim Reprod Sci 2016; 167:40-50. [PMID: 26874430 DOI: 10.1016/j.anireprosci.2016.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/26/2016] [Accepted: 02/01/2016] [Indexed: 01/29/2023]
Abstract
Meat-type Red-feather country hens fed ad libitum (AD-hens) exhibit obesity-associated morbidities and a number of ovarian irregularities. Leukocyte participations in ovarian activities are unstudied in AD-hens. In contrast to feed-restricted hens (R-hens), ovulatory process of the F1 follicle appeared delayed in AD-hens in association with reduced F1 follicle progesterone content, gelatinase A (MMP-2) and collagenase-3 (MMP-13) activities coincident with elevated IL-1β and no production (P<0.05), and increased leukocyte infiltration of inflamed necrotic follicle walls. Extracts of AD-hen F1 follicle walls induced greater leukocyte migration than extracts from F1 follicle wall extracts of R-hens (P<0.05). Co-cultures of granulosa cells with increasing numbers of leukocytes from either AD-hens or R-hens exhibited dose dependent reductions in progesterone production and increases in cell death. AD-hen leukocytes were less proapoptotic than their R counterparts (P<0.05). Granulosa MMP-13 and MMP-2 activities were also suppressed in the co-cultures with heterophils or monocytes in a dose-dependent manner (P<0.05). AD heterophils and R monocytes had a greater inhibitory effect on MMP activities in the co-cultures than their respective counterparts (P<0.05). Both basal and LPS-induced IL-1β secretion and MMP-22 or MMP-2 activities in freshly isolated AD-hen leukocytes were reduced (P<0.05). Exposure of AD or R leukocytes to 0.5mM palmitate impaired IL-1β secretion and MMP-22 or MMP-2 activity. Inhibition of ceramide synthesis with FB1 and ROS production with n-MPG scavenging rescued MMP activity and IL-1β production in palmitate treated heterophils, but exacerbated monocyte suppression. These latter findings suggest that intracellular lipid dysregulation in leukocytes contributes to ovarian dysfunction in AD-hens.
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Nadeau-Vallée M, Obari D, Quiniou C, Lubell WD, Olson DM, Girard S, Chemtob S. A critical role of interleukin-1 in preterm labor. Cytokine Growth Factor Rev 2015; 28:37-51. [PMID: 26684042 DOI: 10.1016/j.cytogfr.2015.11.001] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 10/24/2015] [Accepted: 11/03/2015] [Indexed: 12/16/2022]
Abstract
Preterm birth (PTB) is a leading cause of neonatal mortality and morbidity worldwide, and represents a heavy economic and social burden. Despite its broad etiology, PTB has been firmly linked to inflammatory processes. Pro-inflammatory cytokines are produced in gestational tissues in response to stressors and can prematurely induce uterine activation, which precedes the onset of preterm labor. Of all cytokines implicated, interleukin (IL)-1 has been largely studied, revealing a central role in preterm labor. However, currently approved IL-1-targeting therapies have failed to show expected efficacy in pre-clinical studies of preterm labor. Herein, we (a) summarize animal and human studies in which IL-1 or IL-1-targeting therapeutics are implicated with preterm labor, (b) focus on novel IL-1-targeting therapies and diagnostic tests, and (c) develop the case for commercialization and translation means to hasten their development.
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Affiliation(s)
- Mathieu Nadeau-Vallée
- Departments of Pediatrics, Ophthalmology and Pharmacology, CHU Sainte-Justine Research Center, Montréal H3T 1C5, Canada; Department of Pharmacology, Université de Montréal, Montréal H3C 3J7, Canada
| | - Dima Obari
- Department of Pharmacology, Université de Montréal, Montréal H3C 3J7, Canada
| | - Christiane Quiniou
- Departments of Pediatrics, Ophthalmology and Pharmacology, CHU Sainte-Justine Research Center, Montréal H3T 1C5, Canada
| | - William D Lubell
- Department of Chemistry, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - David M Olson
- Departments of Obstetrics and Gynecology, Pediatrics and Physiology, University of Alberta, Edmonton AB TG6 2S2, Canada
| | - Sylvie Girard
- Departments of Obstetrics and Gynecology, CHU Sainte-Justine Research Centre, Montréal H3T 1C5, Canada.
| | - Sylvain Chemtob
- Departments of Pediatrics, Ophthalmology and Pharmacology, CHU Sainte-Justine Research Center, Montréal H3T 1C5, Canada.
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Liu ZC, Xie YL, Chang CJ, Su CM, Chen YH, Huang SY, Walzem RL, Chen SE. Feed intake alters immune cell functions and ovarian infiltration in broiler hens: implications for reproductive performance. Biol Reprod 2014; 90:134. [PMID: 24829031 DOI: 10.1095/biolreprod.113.115824] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Leukocytes are known to participate in ovarian activities in several species, but there is a surprising lack of information for the common chicken. Broiler hens consuming feed ad libitum (AL) exhibit a number of ovarian irregularities, but leukocyte functions are unstudied. In contrast to feed-restricted (R) hens, AL feeding for 7 wk significantly reduced egg production and clutch length while increasing pause length and atretic follicle numbers (P < 0.05). Granulosa cells from F1 follicles of AL hens contained less progesterone, and follicle walls were thicker with loose fibrous morphology and had less collagenase-3-like gelatinolytic activity but more IL-1beta (P < 0.05) production, suggestive of slower maturation in ovulatory process and inflamed necrosis. Interestingly, while highly infiltrated with immune cells, particularly heterophils, IL-1beta, MMP-22-like, and gelatinase A activities were reduced in AL hen peripheral heterophils and monocytes (P < 0.05); however, AL monocytes showed an increase in phagocytosis rate (P < 0.05). Generation of reactive oxygen intermediates was also suppressed in AL heterophils but increased in AL monocytes (P < 0.05). In contrast to leukocyte-free control, both AL and R heterophils and monocytes suppressed progesterone production and increased cell death in a dose-dependent manner when coincubated with granulosa cells at different ratios (P < 0.05). AL monocytes suppressed progesterone production more, but AL heterophils were less proapoptotic when compared to their R counterparts (P < 0.05). Alterations of cellular ceramide content (P < 0.05) corresponded to the discrepancy between heterophil and monocyte functionality. In conclusion, leukocyte dysfunction contributes to impaired ovarian activities of overfed broiler hens.
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Affiliation(s)
- Zu-Chen Liu
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Lun Xie
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Chai-Ju Chang
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Chia-Ming Su
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Yu-Hui Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - San-Yuan Huang
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan Center for the Integrative and Evolutionary Galliformes Genomics, iEGG Center, National Chung Hsing University, Taiwan
| | - Rosemary L Walzem
- Department of Poultry Science, Texas A&M University, College Station, Texas
| | - Shuen-Ei Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan Center for the Integrative and Evolutionary Galliformes Genomics, iEGG Center, National Chung Hsing University, Taiwan
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Yenuganti VR, Ravinder R, Singh D. Conjugated Linoleic Acids Attenuate LPS-Induced Pro-Inflammatory Gene Expression by Inhibiting the NF-κB Translocation Through PPARγ in Buffalo Granulosa Cells. Am J Reprod Immunol 2014; 72:296-304. [DOI: 10.1111/aji.12261] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Accepted: 03/31/2014] [Indexed: 02/06/2023] Open
Affiliation(s)
- Vengala Rao Yenuganti
- Molecular Endocrinology Laboratory; Animal Biochemistry Division; National Dairy Research Institute; Karnal India
| | - Ravinder Ravinder
- Molecular Endocrinology Laboratory; Animal Biochemistry Division; National Dairy Research Institute; Karnal India
| | - Dheer Singh
- Molecular Endocrinology Laboratory; Animal Biochemistry Division; National Dairy Research Institute; Karnal India
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Walzem RL, Chen SE. Obesity-induced dysfunctions in female reproduction: lessons from birds and mammals. Adv Nutr 2014; 5:199-206. [PMID: 24618762 PMCID: PMC3951803 DOI: 10.3945/an.113.004747] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Follicle wall rupture and ovum release, i.e., ovulation, has been described as a controlled inflammatory event. The process involves tissue remodeling achieved through leukocyte-mediated proteolysis. In birds, ovulation is the first step in the energy-intensive process of egg formation, yet hens that consume energy in excess of productive requirements experience impaired egg-laying ability. Broiler chickens, selected for rapid lean muscle gain, and coincidentally hyperphagia, develop adult obesity when given free access to feed. Obese broiler hens experience elevated circulating concentrations of insulin and leptin, changes in lipid and lipoprotein metabolism similar to those of human metabolic syndrome, as well as increased systemic inflammation. Overall, the manifestations in poultry are similar to those of women with polycystic ovary syndrome. It was shown recently that, in hens, as in mammals, changes in lipid synthesis and metabolism cause granulosa cell apoptosis and altered immune function and hormone production, further compromising ovarian function. To date, there is insufficient information on the means used by the ovary to direct leukocyte function toward successful ovulation. More information is needed regarding the control of proteolytic actions by leukocytes with regards to the roles of specific enzymes in both ovulation and atresia. The broiler hen has provided unique insight into the interrelations of energy intake, obesity, leukocyte function, and reproduction. Additional work with this model can serve the dual purposes of improving avian reproduction and providing novel insights into polycystic ovary syndrome in women.
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Affiliation(s)
- Rosemary L. Walzem
- Poultry Science Department, Texas A&M University, College Station, TX; and,To whom correspondence should be addressed. E-mail:
| | - Shuen-ei Chen
- Department of Animal Science and,Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
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11
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Vrachnis N, Malamas FM, Sifakis S, Tsikouras P, Iliodromiti Z. Immune aspects and myometrial actions of progesterone and CRH in labor. Clin Dev Immunol 2011; 2012:937618. [PMID: 22028729 PMCID: PMC3199111 DOI: 10.1155/2012/937618] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Accepted: 08/17/2011] [Indexed: 01/12/2023]
Abstract
Progesterone and corticotropin-releasing hormone (CRH) have a critical role in pregnancy and labor, as changes related to these hormones are crucial for the transition from myometrial quiescence to contractility. The mechanisms related to their effect differ between humans and other species, thus, despite extensive research, many questions remain to be answered regarding their mediation in human labor. Immune responses to progesterone and CRH are important for labor. Progesterone acts as an immunomodulator which controls many immune actions during pregnancy, and its withdrawal releases the inhibitory action on inflammatory pathways. In humans, a "functional" progesterone withdrawal occurs with onset of labor through changes in progesterone metabolism, progesterone receptors, and other molecules that either facilitate or antagonize progesterone function. Placental CRH acts on the fetal pituitary-adrenal axis to stimulate adrenal production of androgens and cortisol and also acts directly on myometrial cells via its receptors. CRH also affects inflammatory signals and vice versa. Interactions between progesterone and CRH additionally occur during labor. We describe the role of these two hormones in human myometrium and their interactions with the immune system during labor.
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Affiliation(s)
- Nikolaos Vrachnis
- 2nd Department of Obstetrics and Gynecology, University of Athens Medical School, Aretaieio Hospital, 11528 Athens, Greece.
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12
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Otsuka Y, Yanaihara A, Iwasaki S, Hasegawa J, Yanaihara T, Okai T. Localization and gene expression of steroid sulfatase by RT-PCR in cumulus cells and relationship to serum FSH levels observed during in vitro fertilization. JOURNAL OF EXPERIMENTAL & CLINICAL ASSISTED REPRODUCTION 2005; 2:6. [PMID: 15823201 PMCID: PMC1082910 DOI: 10.1186/1743-1050-2-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2005] [Accepted: 04/11/2005] [Indexed: 11/13/2022]
Abstract
Background The purpose of this study was to localize the expression of steroid sulfatase (STS) in cumulus cells and to determine the relationship between STS mRNA expression and the serum levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol and progesterone. Methods The subject group included 49 women (29 to 44 years old) for whom in vitro fertilization treatment was indicated. All subjects gave informed consent. One hundred fourteen samples of cumulus-oocyte complex (COC) were obtained under microscopic observation. Part of the COC was stained by STS antibody. RNA was extracted by phenol-chloroform method and real-time PCR was performed. Serum of each patient was collected and was measured by ELISA. Results Some of the cumulus samples were stained by STS antibody. The expression of STS mRNA in all samples was confirmed by quantitative RT-PCR. Although there was no significant correlation between the level of STS mRNA and the serum levels of estradiol, progesterone and LH, there was a statistically significant negative correlation between the level of STS mRNA expression and the serum level of FSH (n = 105, p = 0.018, r = -0.22). Conclusion These results have demonstrated for the first time the expression of STS in cumulus cells by immunohistological stainings and real-time RT-PCR. STS expression in cumulus cells may be related to the control of the local steroidal environment in the oocyte. Serum FSH may control STS mRNA expression from the results of RT-PCR, although the correlation was low.
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Affiliation(s)
- Yukiko Otsuka
- Department of Obstetrics and Gynecology Showa University School of Medicine 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, Japan
| | - Atsushi Yanaihara
- Department of Obstetrics and Gynecology Showa University School of Medicine 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, Japan
| | - Shinji Iwasaki
- Department of Obstetrics and Gynecology Showa University School of Medicine 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, Japan
| | - Junichi Hasegawa
- Department of Obstetrics and Gynecology Showa University School of Medicine 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, Japan
| | - Takumi Yanaihara
- Department of Obstetrics and Gynecology Showa University School of Medicine 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, Japan
| | - Takashi Okai
- Department of Obstetrics and Gynecology Showa University School of Medicine 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, Japan
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Houdeau E, Larauche M, Monnerie R, Bueno L, Fioramonti J. Uterine motor alterations and estrous cycle disturbances associated with colonic inflammation in the rat. Am J Physiol Regul Integr Comp Physiol 2005; 288:R630-7. [PMID: 15539608 DOI: 10.1152/ajpregu.00482.2004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The impact of colitis on uterine contractility and estrous cycle was investigated after intracolonic administration of 2,4,6-trinitrobenzenesulfonic acid (TNBS) in rats. Colitis severity was assessed by macroscopic damage scoring (MDS) 4 days after TNBS, and myeloperoxidase (MPO) activity was measured in both colon and uterus of control and colitic rats. Estrous cycle stages were determined by vaginal smears and histology, and uterine contractility was assessed in vitro on longitudinal and circular strips. In control rats, uterine MPO activity varied markedly during the cycle and peaked around estrus. In rats with moderate colitis [MDS < 5, 3.1 ± 0.2 (mean ± SE)], uterine MPO decreased by 61% compared with estrus control, without disruption of the cycle. Frequency of spontaneous contractions was reduced by 32% in circular muscle. Contractile responses to KCl and carbachol were not affected, whereas maximal response to oxytocin decreased by 47% in the longitudinal muscle. In rats with severe colitis (MDS > 5, 6.0 ± 0.2), uterine MPO was reduced by 96% and estrous cycle was disrupted. Spontaneous contractility was impaired in circular strips, and a 39% decrease in the contraction frequency occurred in the longitudinal strips. Circular strips did not contract to KCl or carbachol; however, longitudinal strips had maximal responses to KCl, carbachol, and oxytocin reduced by 36%, 27%, and 46%, respectively. Estrogen replacement protected the uterine responses to carbachol in colitic rats, whereas oxytocin responses remained depressed. These data indicate that colonic inflammation can influence both spontaneous and evoked uterine contractility, in relation to estrous cycle disturbances, impaired estradiol production, and functional alterations of myometrial cells.
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Affiliation(s)
- Eric Houdeau
- Neuro-Gastroenterology & Nutrition Unit, Institut National de la Recherche Agronomique, 180 chemin de Tournefeuille BP3, F-31931 Toulouse Cedex 9, France.
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Piatti V, Celis ME, Durando PE. The stimulatory effect of alpha-melanotropin on progesterone release from rat granulosa cells is inhibited by interleukin-1beta and by tumour necrosis factor-alpha. ACTA PHYSIOLOGICA SCANDINAVICA 2004; 182:145-9. [PMID: 15450110 DOI: 10.1111/j.1365-201x.2004.01344.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIM Several studies have shown that a variety of peptides and cytokines are involved in ovarian regulatory mechanisms; however, their exact function is still unclear. In this work we study whether the administration of peptide alpha-melanotropin and the cytokines interleukin-1beta (IL-1beta) and tumour necrosis factor-alpha (TNF-alpha) on their own modify the release of progesterone in cultured granulosa cells (GC) from pro-oestrous rats. We also investigate an interaction between these cytokines and alpha-melanotropin in the modulation of progesterone secretion. METHODS Granulosa cells were collected from the ovaries of female Wistar rats and cultured for up to 24 h in the presence of different concentrations of alpha-melanotropin, cytokines or a combination of both. Progesterone concentration was measured by radioimmunoassay. RESULTS The addition of alpha-melanotropin in a dose of 0.01 and 0.1 mm had no effect on progesterone release, whereas a dose of 1 mm significantly increased progesterone release (P < 0.01) compared with the control culture. Progesterone release was not modified when different concentrations of interleukin-1beta or TNF-alpha were added to the cell cultures. However, when interleukin-1beta or TNF-alpha were added simultaneously with 1 microm alpha-melanotropin, a significant reduction (P < 0.01 for interleukin-1beta and P < 0.05 for TNF-alpha) of the steroid release was found with respect to the alpha-melanotropin-treated group. CONCLUSIONS These results lead us to suggest that, although alpha-melanotropin stimulates progesterone release in pre-ovulatory GC, this effect is blocked by the presence of interleukin-1beta or TNF-alpha.
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Affiliation(s)
- V Piatti
- Laboratorio de Ciencias Fisiológicas, Departamento de Farmacología, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
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Estévez A, Farina M, Franchi A, Johnson C, Vega M, Motta AB. Interleukin-1β up-regulates nitrite production: effects on ovarian function. Nitric Oxide 2004; 10:92-100. [PMID: 15135362 DOI: 10.1016/j.niox.2004.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2003] [Revised: 02/11/2004] [Indexed: 11/24/2022]
Abstract
We have previously reported that Interleukin-1beta (IL-1beta) affects ovarian function in the rat, modulating prostaglandin and progesterone (P) production. As IL-1beta effects were associated to nitric oxide (NO) synthesis, in the present work we have further examined the role of ovarian NOS-system, in IL-1beta antisteroidogenic action. Mid-luteal explants from rats were incubated for 4 h in the presence of IL-1beta (1-35 ng/ml)-alone or in combination with NOS-inhibitors-and then assayed for P and nitrite production. IL-1beta treatment reduced P levels in a dose-dependent manner, returning to basal levels at 35 ng/ml. This reduction in steroid synthesis was paralleled by a dose-dependent increase in nitrite levels, reaching a maximum at 25 ng/ml but without effect at 35 ng/ml. L-Arginine (1 and 2 mM) was able to mimic IL-1beta actions and the NOS blocker L-Nitro-Arginin-Methyl Ester reverted these effects. Moreover, the selective iNOS inhibitor, 1400 W, completely abolished IL-1beta antisteroidogenic effect, therefore confirming the dependence of IL-1beta action upon iNOS activation. Finally, IL-1beta did not affect eNOS expression but up-regulated iNOS mRNA and protein levels. Our results suggest an interaction between IL-1beta and the NOS-system. Thus, we may conclude that in the rat iNOS-derived NO production, induced by IL-1beta, affects ovarian P biosynthesis and hence NO may be a major effector molecule of ovarian IL-1 system.
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Affiliation(s)
- A Estévez
- Center for Pharmacological and Botanical Studies (CEFYBO)-Council of Scientific and Technical Investigation (CONICET), Serrano 669 CP (1414), Buenos Aires, Argentina.
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Estevez A, Tognetti T, Rearte B, Sander V, Motta AB. Interleukin-1beta in the functional and structural luteolysis. Relationship with the nitric oxide system. Prostaglandins Leukot Essent Fatty Acids 2002; 67:411-7. [PMID: 12468262 DOI: 10.1054/plef.2002.0451] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of the present report was to investigate the in vitro effect of interleukin-1beta(IL-1beta) on corpus luteum (CL) function and some aspects of this mechanism involved. Ovarian rat dispersates from mid-luteal phase were exposed to different doses of IL-1beta (1, 10, 20 ng/ml). Meanwhile 1, 10 and 20 ng/ml of IL-1beta decreased progesterone (P4) production, only the highest doses of IL-1beta increased prostaglandin F2alpha (PGF2alpha) levels. To investigate the possible relationship between PGs production and P4 synthesis, we incubated together IL-1beta (20 ng/ml) and indomethacin (0.1 mM) a potent inhibitor of cyclooxygenase pathway. We found that P4 inhibition induced by IL-1beta was completely prevented by addition of indomethacin. On the other hand, when ovarian rat tissue were exposed at 20 ng/ml of IL-1beta (doses that affected both PGF2alpha and P4 production) the nitric oxide synthase (NOS) activity was augmented. Moreover, IL-1beta effects on PGF2alpha and P4 levels were impaired when a NOS inhibitor N(W)-nitro- L -arginine methyl ester (L-NAME, 600 microM) was added to the incubation media. These data demonstrate that: (i) at the tested doses (1-20 ng/ml), IL-1beta is involved in CL function through the diminution of P4 production of whole ovarian dispersate culture; (ii) at the highest doses assayed (20 ng/ml) IL-1beta increased PGF2alpha production; (iii) at these doses, IL-1beta decreased P4 production by means of a cyclooxygenase pathway and (iv) the NO system would be a key intermediary second messenger in the IL-1beta actions.
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Affiliation(s)
- A Estevez
- Centro de Estudios Farmacológicos y Botánicos--Consejo de Investigaciones Científicas y Técnicas, Serrano, Buenos Aires, Argentina.
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Affiliation(s)
- Jennifer R Wood
- Center for Research on Reproduction and Women's Health, University of Pennsylvania Medical Center, Philadelphia, PA 19104, USA
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Kishi H, Greenwald GS. In vitro steroidogenesis by dissociated rat follicles, primary to antral, before and after injection of equine chorionic gonadotropin. Biol Reprod 1999; 61:1177-83. [PMID: 10529263 DOI: 10.1095/biolreprod61.5.1177] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Prepubertal female rats were injected s.c. with 5.0 IU eCG, and ovaries were collected 24 and 48 h post-eCG, on Day 25, as well as from an untreated group also on Day 25. Large antral follicles were manually dissected, and the ovarian remnants were incubated with collagenase overnight to liberate preantral follicles from adhering stromal cells. The viability of the follicles was established by normal histology and lack of pyknotic granulosa cells (GCs) and by their ability to secrete steroids. After a 1-h baseline incubation, either 10 ng LH or 100 ng FSH was added for an additional hour, and the media-before and after gonadotropin administration-were used to measure progesterone, androstenedione, and estradiol by RIA. A distinct hierarchy existed in steroid synthesis, with the maximal production by the largest (700 microm) antral follicles. The major steroid that had accumulated after addition of LH at 48 h post-eCG was androstenedione (1099 pg/follicle per hour), followed by equal amounts of progesterone (155 pg/follicle per hour) and estradiol (191 pg/follicle per hour). There was a precipitous drop in steroid production by 550-microm and 400-microm antral follicles, especially in estradiol for the latter-sized follicles (0.08 pg/follicle per hour). Preantral follicles also produced progesterone and androstenedione after addition of LH. For example, follicles 222 microm in diameter with 4-5 layers of GCs and well-developed theca responded to LH at 48 h post-eCG by accumulating androstenedione (37 pg/follicle per hour) and progesterone (6 pg/follicle per hour) but negligible estradiol. The smallest follicles secreting steroids, 110-148 microm in diameter, had 2-4 layers of GCs. However, primary follicles (1 layer of GCs and no theca) did not synthesize appreciable amounts of any steroid. Although small preantral follicles were consistently stimulated by LH, FSH was ineffective. This result differs from findings in the hamster showing that intact preantral follicles with 1-4 layers of GCs and no theca respond to FSH by secreting progesterone in vitro (Roy and Greenwald, Biol Reprod 1987; 31:39-46). The technique developed to collect intact rat follicles should be useful for numerous investigations.
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Affiliation(s)
- H Kishi
- Department of Molecular and Integrative Physiology and Ralph L. Smith Research Center, University of Kansas Medical Center, Kansas City, Kansas 66160-7401, USA
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