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Kurowska P, Mlyczyńska E, Wajda J, Król K, Pich K, Guzman P, Greggio A, Szkraba O, Opydo M, Dupont J, Rak A. Expression and in vitro effect of phoenixin-14 on the porcine ovarian granulosa cells. Reprod Biol 2024; 24:100827. [PMID: 38016195 DOI: 10.1016/j.repbio.2023.100827] [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: 07/11/2023] [Revised: 10/16/2023] [Accepted: 11/14/2023] [Indexed: 11/30/2023]
Abstract
Phoenixin-14 (PNX-14) regulates energy metabolism via the G protein-coupled receptor 173 (GPR173); elevated plasma levels have been described in patients with polycystic ovary syndrome. The aims were to investigate the ovarian expression of PNX-14/GPR173 and the in vitro effect of PNX-14 on granulosa cells (Gc) function. Transcript and protein levels of PNX-14/GRP173 were analysed by real-time PCR, western blot and immunohistochemistry in the porcine ovarian follicles at days 2-3, 10-12 and 16-18 of the oestrous. For in vitro experiments, Gc were isolated from follicles at days 10-12 of the oestrous (4-6 mm) and PNX-14 at doses 1-1000 nM was added for 24-72 h to determine Gc proliferation. Cell cycle progression, E2 secretion, expression of proliferating cells nuclear antigen, cyclins, mitogen-activated kinase (MAP3/1; ERK1/2), protein kinase B (AKT) and signal transducer and activator of transcription 3 (STAT3) were studied. The involvement of these kinases in PNX-14 action on Gc proliferation was analysed using pharmacological inhibitors. Levels of GPR173 were increased in the ovarian follicles with oestrous progression, while only PNX-14 protein was the highest at days 10-12 of the oestrous. Immuno-signal of PNX-14 was detected in Gc and theca cells and oocyte, while GPR173 was mostly in theca. Interestingly, PNX-14 stimulated Gc proliferation, E2 secretion, cell cycle progression and cyclins expression and had a modulatory effect on MAP3/1, AKT and STAT3 activation. Our study suggests that PNX-14 could be an important factor for porcine reproduction by influencing ovarian follicle growth through direct action on Gc function.
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Affiliation(s)
- Patrycja Kurowska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland.
| | - Ewa Mlyczyńska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland; Doctoral School of Exact and Natural Sciences, Jagiellonian University in Krakow, Poland
| | - Julia Wajda
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland
| | - Konrad Król
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland
| | - Karolina Pich
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland; Doctoral School of Exact and Natural Sciences, Jagiellonian University in Krakow, Poland
| | - Patrycja Guzman
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland
| | - Aleksandra Greggio
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland
| | - Oliwia Szkraba
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland
| | - Małgorzata Opydo
- Laboratory of Experimental Hematology, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland
| | - Joelle Dupont
- National Research Institute for Agriculture, Food and the Environment, UMR85, Unité Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | - Agnieszka Rak
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Poland
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Qin L, Luo Y, Chang H, Zhang H, Zhu Z, Du Y, Liu K, Wu H. The association between serum orexin-A levels and sleep quality in pregnant women. Sleep Med 2023; 101:93-98. [PMID: 36368074 DOI: 10.1016/j.sleep.2022.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 10/07/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE/BACKGROUND Orexin has been shown to regulate the sleep-wake cycle, and it may play a major role in the pathogenesis of sleep disorders; however, its role in sleep disorders in pregnant women remains unclear. We aimed to assess the relationship between serum orexin-A (OXA) levels and sleep quality in pregnant women. PATIENTS/METHODS This study comprised 214 enrolled pregnant women (poor sleep quality, n = 125; no poor sleep quality, n = 89). We assessed participants' sleep quality and depression and anxiety levels. OXA levels were measured using enzyme-linked immunosorbent assay. RESULTS Women in the poor sleep quality group showed higher serum OXA levels (0.33[0.3] vs. 0.27[0.11], P < 0.001) than those in the no poor sleep quality group. Binary regression analysis showed that the higher the OXA levels (odds ratio [OR] 1.385, 95% CI [confidence interval] 1.160-1.655) and Zung Self-Rating Anxiety Scale scores (OR 1.073, 95% CI 1.009-1.140), the greater the risk of sleep quality in pregnant women. First-trimester OXA levels differed significantly from those in the second and third trimesters (P < 0.05). CONCLUSION Serum OXA levels were higher in pregnant women with poor sleep quality than in those without poor sleep quality. OXA levels were also higher in the second and third trimesters than in the first trimester.
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Affiliation(s)
- Liwei Qin
- Department of Nursing, The First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100, China
| | - Yanyan Luo
- School of Nursing, Xinxiang Medical University, Xingxiang, 453003, China.
| | - Hongjuan Chang
- School of Nursing, Xinxiang Medical University, Xingxiang, 453003, China
| | - Hongxing Zhang
- School of Psychology, Xinxiang Medical University, Xingxiang, 453003, China
| | - Zhiling Zhu
- Department of Nursing, Xinxiang Central Hospital, Xinxiang, 453000, China
| | - Yishen Du
- Department of Nursing, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, China
| | - Kaili Liu
- School of Nursing, Xinxiang Medical University, Xingxiang, 453003, China
| | - Huimin Wu
- School of Nursing, Xinxiang Medical University, Xingxiang, 453003, China
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Mlyczyńska E, Kieżun M, Kurowska P, Dawid M, Pich K, Respekta N, Daudon M, Rytelewska E, Dobrzyń K, Kamińska B, Kamiński T, Smolińska N, Dupont J, Rak A. New Aspects of Corpus Luteum Regulation in Physiological and Pathological Conditions: Involvement of Adipokines and Neuropeptides. Cells 2022; 11:957. [PMID: 35326408 PMCID: PMC8946127 DOI: 10.3390/cells11060957] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 02/28/2022] [Accepted: 03/08/2022] [Indexed: 11/17/2022] Open
Abstract
The corpus luteum is a small gland of great importance because its proper functioning determines not only the appropriate course of the estrous/menstrual cycle and embryo implantation, but also the subsequent maintenance of pregnancy. Among the well-known regulators of luteal tissue functions, increasing attention is focused on the role of neuropeptides and adipose tissue hormones-adipokines. Growing evidence points to the expression of these factors in the corpus luteum of women and different animal species, and their involvement in corpus luteum formation, endocrine function, angiogenesis, cells proliferation, apoptosis, and finally, regression. In the present review, we summarize the current knowledge about the expression and role of adipokines, such as adiponectin, leptin, apelin, vaspin, visfatin, chemerin, and neuropeptides like ghrelin, orexins, kisspeptin, and phoenixin in the physiological regulation of the corpus luteum function, as well as their potential involvement in pathologies affecting the luteal cells that disrupt the estrous cycle.
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Affiliation(s)
- Ewa Mlyczyńska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (E.M.); (P.K.); (M.D.); (K.P.); (N.R.)
| | - Marta Kieżun
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland; (M.K.); (E.R.); (B.K.); (T.K.); (N.S.)
| | - Patrycja Kurowska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (E.M.); (P.K.); (M.D.); (K.P.); (N.R.)
| | - Monika Dawid
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (E.M.); (P.K.); (M.D.); (K.P.); (N.R.)
| | - Karolina Pich
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (E.M.); (P.K.); (M.D.); (K.P.); (N.R.)
| | - Natalia Respekta
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (E.M.); (P.K.); (M.D.); (K.P.); (N.R.)
| | - Mathilde Daudon
- Unité Physiologie de la Reproduction et des Comportements, French National Institute for Agriculture, Food, and Environment, 37380 Nouzilly, France; (M.D.); (J.D.)
| | - Edyta Rytelewska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland; (M.K.); (E.R.); (B.K.); (T.K.); (N.S.)
| | - Kamil Dobrzyń
- Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland;
| | - Barbara Kamińska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland; (M.K.); (E.R.); (B.K.); (T.K.); (N.S.)
| | - Tadeusz Kamiński
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland; (M.K.); (E.R.); (B.K.); (T.K.); (N.S.)
| | - Nina Smolińska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland; (M.K.); (E.R.); (B.K.); (T.K.); (N.S.)
| | - Joelle Dupont
- Unité Physiologie de la Reproduction et des Comportements, French National Institute for Agriculture, Food, and Environment, 37380 Nouzilly, France; (M.D.); (J.D.)
| | - Agnieszka Rak
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (E.M.); (P.K.); (M.D.); (K.P.); (N.R.)
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Razavinia F, Tehranian N, Sadatmahalleh SJ, Kazemnejad A, Khajetash S, Daryasari SRF, Pahlavan F, Jahanfar S. The influence of mode of delivery, anthropometric indices, and infant's sex on the maternal and cord blood orexin-A levels: A cohort study. J Obstet Gynaecol Res 2021; 47:2363-2370. [PMID: 33870593 DOI: 10.1111/jog.14758] [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: 12/08/2020] [Revised: 02/17/2021] [Accepted: 03/10/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Orexin as an adipokin hormone plays an important role in appetite regulation, energy metabolism, obesity, diabetes, and cardiovascular disease. The main source of orexin secretion in nonpregnant and pregnant women is adipose tissue and placenta, respectively. This research was conducted to evaluate the association between orexin-A level and the mode of delivery, anthropometric indices, and sex of the infant. METHODS This prospective cohort study was conducted on 69 normal pregnant women. The samples of umbilical cord blood were obtained at the time of delivery, and maternal blood was taken within 24 h of delivery. Serum orexin-A levels were measured by using enzyme-linked immunosorbent assay. Statistical analyses were performed using SPSS and p < 0.05 was considered as significant. RESULTS We found a significant difference between postpartum maternal and umbilical cord orexin-A level both with the mode of delivery (p < 0.001). Also, a significant positive correlation was seen between maternal and umbilical cord serum orexin-A levels (r = -0.61, p < 0.001). There was no relationship between serum orexin-A levels with anthropometric indices and the sex of the neonate (p > 0.05). CONCLUSION Both maternal and umbilical cord serum orexin-A levels were associated with the mode of delivery. Maternal and cord blood orexin-A levels in normal vaginal delivery are higher than cesarean section.
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Affiliation(s)
- Fatemeh Razavinia
- Department of Reproductive Health and Midwifery, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Najmeh Tehranian
- Department of Reproductive Health and Midwifery, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Anoshirvan Kazemnejad
- Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Shaghayegh Khajetash
- Counseling in Midwifery, Research Committee, School of Nursing and Midwifery Nasibeh, Sari, Iran
| | | | - Fattaneh Pahlavan
- Department of Reproductive Health and Midwifery, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Shayesteh Jahanfar
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, Massachusetts, USA
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5
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Untangling narcolepsy and diabetes: Pathomechanisms with eyes on therapeutic options. Brain Res 2019; 1718:212-222. [DOI: 10.1016/j.brainres.2019.04.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/23/2019] [Accepted: 04/13/2019] [Indexed: 12/14/2022]
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Smolinska N, Kiezun M, Dobrzyn K, Szeszko K, Maleszka A, Kaminski T. Adiponectin, orexin A and orexin B concentrations in the serum and uterine luminal fluid during early pregnancy of pigs. Anim Reprod Sci 2017; 178:1-8. [PMID: 28089263 DOI: 10.1016/j.anireprosci.2017.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 12/22/2016] [Accepted: 01/06/2017] [Indexed: 01/09/2023]
Abstract
Adiponectin is the most abundant adipose-released protein that circulates in human plasma at high concentrations. The neuropeptides orexin A (OXA, hypocretin-1) and orexin B (OXB, hypocretin-2) are derived from a common precursor peptide, prepro-orexin and are produced mainly by neurons located in the lateral hypothalamus. It has been demonstrated that the peptides such as adiponectin and orexins have an important role in the regulation of energy metabolism and neuroendocrine functions. These hormones appear to be implicated in both normal and disturbed pregnancy. The objectives of this study were to determine adiponectin and orexin concentrations in the plasma and uterine luminal fluid (ULF) of pigs during early gestation and to explore the relationships between hormone concentrations and stages of pregnancy. The greatest plasma concentrations of adiponectin were observed on days 15-16 and 27-28 of pregnancy, and the least concentrations were on days 30-32 of gestation and on days 10-11 of the oestrous cycle. In ULF, adiponectin concentrations were greater on days 15-16 of pregnancy and on days 10-11 of the oestrous cycle than on days 10-11 and days 12-13 of pregnancy. The greatest OXA concentrations in the blood plasma were noted on days 10-16 of gestation, and the least OXA concentrations were on days 27-32 of pregnancy and on days 10-11 of the oestrous cycle. Orexin A concentrations in ULF were greater on days 10-11 of the cycle than throughout pregnancy. Serum OXB concentrations were greatest on days 10-11 and 30-32 of pregnancy, and least on days 12-28 of gestation. The greatest OXB concentrations in ULF were on days 10-13 of gestation, and the least OXB concentrations were on days 15-16 of pregnancy. This is first study to demonstrate the presence of adiponectin and orexins in the serum and ULF during early pregnancy of pigs as well as the relationships between adiponectin and orexin concentrations and the stage of pregnancy. The fluctuations in adiponectin and orexin concentrations in the plasma and ULF suggest that the hormones present in ULF are mostly of local origin and that these hormones participate in the processes that accompany early pregnancy.
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Affiliation(s)
- Nina Smolinska
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski Street 1A, 10-719 Olsztyn, Poland.
| | - Marta Kiezun
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski Street 1A, 10-719 Olsztyn, Poland.
| | - Kamil Dobrzyn
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski Street 1A, 10-719 Olsztyn, Poland.
| | - Karol Szeszko
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski Street 1A, 10-719 Olsztyn, Poland.
| | - Anna Maleszka
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski Street 1A, 10-719 Olsztyn, Poland.
| | - Tadeusz Kaminski
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski Street 1A, 10-719 Olsztyn, Poland.
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7
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Kim MK, Park HJ, Kim SR, Choi YK, Bae SK, Bae MK. Involvement of Heme Oxygenase-1 in Orexin-A-induced Angiogenesis in Vascular Endothelial Cells. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2015; 19:327-34. [PMID: 26170736 PMCID: PMC4499644 DOI: 10.4196/kjpp.2015.19.4.327] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 04/13/2015] [Accepted: 04/23/2015] [Indexed: 12/21/2022]
Abstract
The cytoprotective enzyme heme oxygenase-1 (HO-1) influences endothelial cell survival, proliferation, inflammatory response, and angiogenesis in response to various angiogenic stimuli. In this study, we investigate the involvement of HO-1 in the angiogenic activity of orexin-A. We showed that orexin-A stimulates expression and activity of HO-1 in human umbilical vein endothelial cells (HUVECs). Furthermore, we showed that inhibition of HO-1 by tin (Sn) protoporphryin-IX (SnPP) reduced orexin-A-induced angiogenesis in vivo and ex vivo. Orexin-A-stimulated endothelial tube formation and chemotactic activity were also blocked in SnPP-treated vascular endothelial cells. Orexin-A treatment increased the expression of nuclear factor erythroid-derived 2 related factor 2 (Nrf2), and antioxidant response element (ARE) luciferase activity, leading to induction of HO-1. Collectively, these findings indicate that HO-1 plays a role as an important mediator of orexin-A-induced angiogenesis, and provide new possibilities for therapeutic approaches in pathophysiological conditions associated with angiogenesis.
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Affiliation(s)
- Mi-Kyoung Kim
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan 626-870, Korea
| | - Hyun-Joo Park
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan 626-870, Korea. ; Department of Dental Pharmacology, School of Dentistry, Pusan National University, Yangsan 626-870, Korea
| | - Su-Ryun Kim
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan 626-870, Korea. ; Department of Dental Pharmacology, School of Dentistry, Pusan National University, Yangsan 626-870, Korea
| | - Yoon Kyung Choi
- Neuroprotection Research Laboratory, Department of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Soo-Kyung Bae
- Department of Dental Pharmacology, School of Dentistry, Pusan National University, Yangsan 626-870, Korea
| | - Moon-Kyoung Bae
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan 626-870, Korea
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Cho GJ, Hong HR, Kim SW, Hong SC, Oh MJ, Kim HJ. Decreased umbilical orexin-A level is associated with idiopathic polyhydramnios. Acta Obstet Gynecol Scand 2015; 94:295-300. [DOI: 10.1111/aogs.12559] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 12/08/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Geum Joon Cho
- Department of Obstetrics and Gynecology; College of Medicine; Korea University; Seoul Korea
| | - Hye-Ri Hong
- Department of Obstetrics and Gynecology; School of Medicine; Kyung Hee University; Seoul Korea
| | - Suhng Wook Kim
- Department of Biomedical Science; College of Health Sciences; Korea University; Seoul Korea
| | - Soon Cheol Hong
- Department of Obstetrics and Gynecology; College of Medicine; Korea University; Seoul Korea
| | - Min-Jeong Oh
- Department of Obstetrics and Gynecology; College of Medicine; Korea University; Seoul Korea
| | - Hai Joon Kim
- Department of Obstetrics and Gynecology; College of Medicine; Korea University; Seoul Korea
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Donlin M, Cavanaugh BL, Spagnuolo OS, Yan L, Lonstein JS. Effects of sex and reproductive experience on the number of orexin A-immunoreactive cells in the prairie vole brain. Peptides 2014; 57:122-8. [PMID: 24874707 DOI: 10.1016/j.peptides.2014.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 05/07/2014] [Accepted: 05/07/2014] [Indexed: 12/27/2022]
Abstract
Large populations of cells synthesizing the neuropeptide orexin (OX) exist in the caudal hypothalamus of all species examined and are implicated in physiological and behavioral processes including arousal, stress, anxiety and depression, reproduction, and goal-directed behaviors. Hypothalamic OX expression is sexually dimorphic in different directions in laboratory rats (F>M) and mice (M>F), suggesting different roles in male and female physiology and behavior that are species-specific. We here examined if the number of hypothalamic cells immunoreactive for orexin A (OXA) differs between male and female prairie voles (Microtus ochrogaster), a socially monogamous species that pairbonds after mating and in which both sexes care for offspring, and if reproductive experience influences their number of OXA-immunoreactive (OXA-ir) cells. It was found that the total number of OXA-ir cells did not differ between the sexes, but females had more OXA-ir cells than males in anterior levels of the caudal hypothalamus, while males had more OXA-ir cells posteriorly. Sexually experienced females sacrificed 12 days after the birth of their first litter, or one day after birth of a second litter, had more OXA-ir cells in anterior levels but not posterior levels of the caudal hypothalamus compared to females housed with a brother (incest avoidance prevents sibling mating). Male prairie voles showed no effect of reproductive experience but showed an unexpected effect of cohabitation duration regardless of mating. The sex difference in the distribution of OXA-ir cells, and their increased number in anterior levels of the caudal hypothalamus of reproductively experienced female prairie voles, may reflect a sex-specific mechanism involved in pairbonding, parenting, or lactation in this species.
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Affiliation(s)
- Michael Donlin
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI 48824, United States
| | - Breyanna L Cavanaugh
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI 48824, United States
| | - Olivia S Spagnuolo
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI 48824, United States
| | - Lily Yan
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI 48824, United States
| | - Joseph S Lonstein
- Neuroscience Program, Michigan State University, 108 Giltner Hall, East Lansing, MI 48824, United States.
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Kaminski T, Nitkiewicz A, Smolinska N. Changes in plasma orexin A and orexin B concentrations during the estrous cycle of the pig. Peptides 2013; 39:175-7. [PMID: 23220034 DOI: 10.1016/j.peptides.2012.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 11/05/2012] [Accepted: 11/05/2012] [Indexed: 01/29/2023]
Abstract
Orexin A (OXA) and orexin B (OXB) are neuropeptides synthesized mainly in the lateral hypothalamus, which are involved in the control of various physiological functions such as energy homeostasis, sleep, wakefulness and feeding behavior. The present study analyzes orexins A and B levels in the porcine plasma during the estrous cycle. The highest plasma concentrations of orexin A were observed on days 2-3 of the estrous cycle (p<0.05 relative to days 10-12 and 14-16) and the lowest (p<0.05) on days 14-16. The highest orexin B levels in the blood plasma were noted on days 17-19 (p<0.05 vs. days 14-16). We demonstrated the presence of OXA and OXB in porcine blood plasma and the impact of the phase of the estrous cycle on the observed changes in plasma orexin levels.
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Affiliation(s)
- Tadeusz Kaminski
- Department of Animal Physiology, University of Warmia and Mazury in Olsztyn, Olsztyn-Kortowo, Poland.
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Kirsz K, Szczesna M, Molik E, Misztal T, Wojtowicz AK, Zieba DA. Seasonal changes in the interactions among leptin, ghrelin, and orexin in sheep1. J Anim Sci 2012; 90:2524-31. [DOI: 10.2527/jas.2011-4463] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K. Kirsz
- Agricultural University, Department of Swine and Small Ruminant Breeding, Laboratory of Biotechnology and Genomics, 31-274 Krakow, Poland
| | - M. Szczesna
- Agricultural University, Department of Swine and Small Ruminant Breeding, Laboratory of Biotechnology and Genomics, 31-274 Krakow, Poland
| | - E. Molik
- Agricultural University, Department of Swine and Small Ruminant Breeding, Laboratory of Biotechnology and Genomics, 31-274 Krakow, Poland
| | - T. Misztal
- Institute of Animal Physiology and Nutrition, Department of Endocrinology, Polish Academy of Sciences, 05-110 Jablonna, Poland
| | - A. K. Wojtowicz
- Agricultural University, Department of Swine and Small Ruminant Breeding, Laboratory of Biotechnology and Genomics, 31-274 Krakow, Poland
| | - D. A. Zieba
- Agricultural University, Department of Swine and Small Ruminant Breeding, Laboratory of Biotechnology and Genomics, 31-274 Krakow, Poland
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Kim MK, Park HJ, Kim SR, Choi YK, Shin HK, Jeon JH, Jang HO, Yun I, Bae SK, Bae MK. Angiogenic role of orexin-A via the activation of extracellular signal-regulated kinase in endothelial cells. Biochem Biophys Res Commun 2010; 403:59-65. [DOI: 10.1016/j.bbrc.2010.10.115] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Accepted: 10/26/2010] [Indexed: 12/22/2022]
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Hoskins LJ, Xu M, Volkoff H. Interactions between gonadotropin-releasing hormone (GnRH) and orexin in the regulation of feeding and reproduction in goldfish (Carassius auratus). Horm Behav 2008; 54:379-85. [PMID: 18544455 DOI: 10.1016/j.yhbeh.2008.04.011] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2008] [Revised: 04/23/2008] [Accepted: 04/28/2008] [Indexed: 11/25/2022]
Abstract
Links between energy homeostasis and reproduction have been demonstrated in vertebrates. As a general rule, abundant food resources favor reproduction whereas low food availability induces an inhibition of reproductive processes. In both mammals and fish, gonadotropin-releasing hormone (GnRH) and orexin (OX) are hypothalamic neuropeptides that play critical roles in the regulation of sexual behavior and appetite, respectively. In order to assess possible interactions between orexin and GnRH in the control of feeding and reproduction in goldfish, we examined the effects of chicken GnRH (cGnRH-II) intracerebroventricular (ICV) injection on feeding behavior and OX brain mRNA expression as well as the effects of orexin ICV injections on spawning behavior and cGnRH-II brain mRNA expression. Treatment with cGnRH-II at doses that stimulate spawning (0.5 ng/g or 1 ng/g) resulted in a decrease in both food intake and hypothalamic orexin mRNA expression. Treatment with orexin A at doses that stimulate feeding (10 ng/g) induced an inhibition of spawning behavior and a decrease in cGnRH-II expression in the hypothalamus and optic tectum-thalamus. Our results suggest that the anorexigenic actions of cGnRH-II in goldfish might be in part mediated by OX and that orexin inhibits reproductive behavior in part via the inhibition of the GnRH system. Our data suggest the existence of a coordinated control of feeding and reproduction by the orexin and GnRH systems in goldfish.
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Affiliation(s)
- Leah J Hoskins
- Department of Biology, Memorial University of Newfoundland, St. John's, NL, Canada A1B 3X9
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Hirota K, Kushikata T, Yoshida H, Kudo M, Kudo T. Role of the orexinergic system in acute haemorrhage in the rat. Neurosci Lett 2008; 432:162-6. [DOI: 10.1016/j.neulet.2007.12.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Revised: 11/22/2007] [Accepted: 12/10/2007] [Indexed: 11/28/2022]
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Douglas AJ, Johnstone LE, Leng G. Neuroendocrine mechanisms of change in food intake during pregnancy: a potential role for brain oxytocin. Physiol Behav 2007; 91:352-65. [PMID: 17512024 DOI: 10.1016/j.physbeh.2007.04.012] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
During pregnancy body weight, and particularly adiposity, increase, due to hyperphagia rather than decreased energy metabolism. These physiological adaptations provide the growing fetus(es) with nutrition and prepare the mother for the metabolically-demanding lactation period following birth. Mechanisms underlying the hyperphagia are still poorly understood. Although the peripheral signals that drive appetite and satiety centers of the brain are increased in pregnancy, the brain may become insensitive to their effects. For example, leptin secretion increases but hypothalamic resistance to leptin actions develops. However, several adaptations in hypothalamic neuroendocrine systems may converge to increase ingestive behavior. Oxytocin is one of the anorectic hypothalamic neuropeptides. Oxytocin neurons, both centrally-projecting parvocellular oxytocin neurons and central dendritic release of oxytocin from magnocellular neurons, may play a key role in regulating energy intake. During feeding in non-pregnant rats, magnocellular oxytocin neurons, especially those in the supraoptic nucleus, become strongly activated indicating their imminent role in meal termination. However, in mid-pregnancy the excitability of these neurons is reduced, central dendritic oxytocin release is inhibited and patterns of oxytocin receptor binding in the brain alter. Our recent data suggest that lack of central oxytocin action may partly contribute to maternal hyperphagia. However, although opioid inhibition is a major factor in oxytocin neuron restraint during pregnancy and opioids enhance food intake, an increase in opioid orexigenic actions were not observed. While changes in several central input pathways to oxytocin neurons are likely to be involved, the high level of progesterone secretion during pregnancy is probably the ultimate trigger for the adaptations.
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Affiliation(s)
- Alison J Douglas
- Centre for Integrative Physiology, University of Edinburgh, Edinburgh, UK.
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Fatima A, Haroon MF, Wolf G, Engelmann M, Spina MG. Reduced urocortin 1 immunoreactivity in the non-preganglionic Edinger-Westphal nucleus during late pregnancy in rats. ACTA ACUST UNITED AC 2007; 143:34-8. [PMID: 17391780 DOI: 10.1016/j.regpep.2007.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2006] [Revised: 02/02/2007] [Accepted: 02/02/2007] [Indexed: 11/16/2022]
Abstract
Pregnancy is accompanied by an array of adaptive changes that play an important role in pre- and postnatal events. In rats, urocortin 1, a corticotropin-releasing factor-like peptide, is expressed mainly in the non-preganglionic Edinger-Westphal nucleus. We investigated the number of neurons immunoreactive for urocortin 1 at three different levels of the Edinger-Westphal nucleus in female rats by immunohistochemistry. The number of urocortin 1 immunoreactive cells was found to be decreased in pregnant rats compared to virgin rats. These results indicate that the hormonal status of the female rat affects urocortin 1 immunoreactive neurons in the non-preganglionic Edinger-Westphal nucleus and its signaling to target brain areas.
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Affiliation(s)
- A Fatima
- Institute of Medical Neurobiology, Otto-von-Guericke University Magdeburg, Germany.
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