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Maternal Separation Induces Long-Term Alterations in the Cardiac Oxytocin Receptor and Cystathionine γ-Lyase Expression in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:4309605. [PMID: 32082478 PMCID: PMC7007946 DOI: 10.1155/2020/4309605] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 12/13/2019] [Accepted: 12/28/2019] [Indexed: 12/21/2022]
Abstract
We recently showed that blunt chest trauma reduced the expression of the myocardial oxytocin receptor (Oxtr), which was further aggravated by genetic deletion of the H2S-producing enzyme cystathionine γ-lyase (CSE). Exogenous H2S supplementation restored myocardial Oxtr expression under these conditions. Early life stress (ELS) is a risk factor for cardiovascular disease by affecting vascular and heart structures. Therefore, we tested the hypotheses that (i) ELS affects cardiac Oxtr and CSE expressions and (ii) Oxtr and CSE expression patterns depend on the duration of stress exposure. Thus, two stress paradigms were compared: long- and short-term separation stress (LTSS and STSS, respectively). Cardiac Oxtr expression was differentially affected by the two stress paradigms with a significant reduction after LTSS and a significant increase after STSS. CSE expression, which was significantly reduced in Oxtr−/− knockout hearts, was downregulated and directly related to Oxtr expression in LTSS hearts (r = 0.657, p = 0.012). In contrast, CSE expression was not related to Oxtr upregulation in STSS. Plasma Oxt levels were not affected by either ELS paradigm. The coincidence of LTSS-induced reduction of cardiac Oxtr and reduced CSE expression may suggest a novel pathophysiological link between early life adversities and increased risk for the development of cardiovascular disorders in adulthood.
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Countouris ME, Holzman C, Althouse AD, Snyder GG, Barinas-Mitchell E, Reis SE, Catov JM. Lactation and Maternal Subclinical Atherosclerosis Among Women With and Without a History of Hypertensive Disorders of Pregnancy. J Womens Health (Larchmt) 2020; 29:789-798. [PMID: 31895649 DOI: 10.1089/jwh.2019.7863] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background: We evaluated subclinical cardiovascular disease in relation to lactation history among women with normotensive pregnancies and women with hypertensive pregnancies, a distinction not previously examined. Materials and Methods: The POUCHmoms study included 678 women from a pregnancy cohort who were followed 7-15 years after delivery. We measured blood pressure, lipid levels, carotid intima-media thickness (CIMT), and lactation duration for each live birth (LB) at follow-up. We categorized lactation as never, <6 months/LB, or ≥6 months/LB. We analyzed associations between lactation and cardiometabolic risk factors and CIMT by using analysis of variance and multivariable linear regression (adjusted for age, race, socioeconomic status, smoking, time from last pregnancy, and total parity), which produced adjusted least square mean differences (LSMdiff) between groups. Results: In the normotensive pregnancies group with women who never lactated as the referent (n = 157): Women with some lactation but <6 months/LB (n = 284) had higher high density lipoprotein (HDL) (LSMdiff = +4.47 mg/dL, p = 0.013), lower triglycerides (LSMdiff = -38.1 mg/dL, p = 0.02), and thinner mean CIMT (LSMdiff = -0.03 mm, p = 0.005); women who lactated for ≥6 months/LB (n = 133) also had higher HDL (LSMdiff = +7.59 mg/dL, p < 0.001), lower triglycerides (LSMdiff = -41.6 mg/dL, p = 0.01), and thinner mean CIMT (LSMdiff = -0.03 mm, p = 0.003). After further adjustment for body mass index, associations between lactation and HDL, triglycerides, and mean CIMT persisted. These associations were not detected in women with prior hypertensive pregnancies. Conclusions: Women with a history of normotensive pregnancies and lactation for any duration had a more favorable cardiometabolic profile and were at decreased risk of subclinical atherosclerosis compared with those who never lactated.
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Affiliation(s)
- Malamo E Countouris
- Department of Cardiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Claudia Holzman
- Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, Michigan
| | - Andrew D Althouse
- Department of General Internal Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Gabrielle G Snyder
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Emma Barinas-Mitchell
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Steven E Reis
- Department of Cardiology, University of Pittsburgh, Pittsburgh, Pennsylvania.,Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Janet M Catov
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
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53
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Effects of intraperitoneal and intracerebroventricular injections of oxytocin on social and emotional behaviors in pubertal male mice. Physiol Behav 2019; 212:112701. [DOI: 10.1016/j.physbeh.2019.112701] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/27/2019] [Accepted: 10/04/2019] [Indexed: 12/20/2022]
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54
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Horta M, Kaylor K, Feifel D, Ebner NC. Chronic oxytocin administration as a tool for investigation and treatment: A cross-disciplinary systematic review. Neurosci Biobehav Rev 2019; 108:1-23. [PMID: 31647964 DOI: 10.1016/j.neubiorev.2019.10.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 09/10/2019] [Accepted: 10/18/2019] [Indexed: 12/18/2022]
Abstract
Oxytocin (OT) subserves various physiological, behavioral, and cognitive processes. This paired with the ability to administer OT with minimal and inconsistent side effects has spurred research to explore its therapeutic potential. Findings from single-dose studies indicate that OT administration may be beneficial, at least under certain circumstances. The state of the field, however, is less clear regarding effects from chronic OT administration, which more closely resembles long-term treatment. To address this gap, this review synthesizes existing findings on the use of chronic OT administration in animal and human work. In addition to detailing the effects of chronic OT administration across different functional domains, this review highlights factors that have contributed to mixed findings. Based on this review, a basic framework of interrelated regulatory functions sensitive to chronic OT administration is offered. The paper also identifies future research directions across different contexts, populations, and outcomes, specifically calling for more systematic and standardized research on chronic OT administration in humans to supplement and expand what is currently known from preclinical work.
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Affiliation(s)
- Marilyn Horta
- Department of Psychology, University of Florida, Gainesville, FL, USA.
| | - Kathryn Kaylor
- Department of Psychology, University of Florida, Gainesville, FL, USA
| | - David Feifel
- Department of Psychiatry, University of California, San Diego, CA, USA
| | - Natalie C Ebner
- Department of Psychology, University of Florida, Gainesville, FL, USA; Institute on Aging, Department of Aging & Geriatric Research, University of Florida, Gainesville, FL, USA
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55
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Ali II, Al-Salam S, Howarth FC, Shmygol A. Oxytocin induces intracellular Ca 2+ release in cardiac fibroblasts from neonatal rats. Cell Calcium 2019; 84:102099. [PMID: 31614270 DOI: 10.1016/j.ceca.2019.102099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/14/2019] [Accepted: 10/01/2019] [Indexed: 10/25/2022]
Abstract
Pituitary neuropeptide oxytocin is increasingly recognised as a cardiovascular hormone, in addition to its many regulatory roles in other organ systems. Studies in atrial and ventricular myocytes from the neonatal and adult rats have identified synthesis of oxytocin and the expression of oxytocin receptors in these cells. In cardiac fibroblasts, the most populous non-myocyte cell type in mammalian heart, the oxytocin receptors have not been described before. In the present study, we have investigated the direct effects of oxytocin on intracellular Ca2+ dynamics in ventricular myocytes and fibroblasts from new born rats. In myocytes, oxytocin increased the frequency of spontaneous Ca2+ transients and decreased their amplitude. Our data suggest that oxytocin receptors are also present and functional in the majority of cardiac fibroblasts. We used selective oxytocin receptor inhibitor L-371,257 and a number of intracellular Ca 2+ release blockers to investigate the mechanism of oxytocin induced Ca2+ signalling in cardiac fibroblasts. Our findings suggest that oxytocin induces Ca2+ signals in cardiac fibroblasts by triggering endoplasmic reticulum Ca2+ release via inositol trisphosphate activated receptors. The functional significance of the oxytocin induced Ca2+ signalling in cardiac fibroblasts, especially for their activation into secretory active myofibroblasts, remains to be investigated.
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Affiliation(s)
- Ifrah I Ali
- Departments of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, PO Box 17666, United Arab Emirates
| | - Suhail Al-Salam
- Departments of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, PO Box 17666, United Arab Emirates
| | - Frank C Howarth
- Departments of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, PO Box 17666, United Arab Emirates
| | - Anatoliy Shmygol
- Departments of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, PO Box 17666, United Arab Emirates.
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56
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Heesen M, Carvalho B, Carvalho JCA, Duvekot JJ, Dyer RA, Lucas DN, McDonnell N, Orbach‐Zinger S, Kinsella SM. International consensus statement on the use of uterotonic agents during caesarean section. Anaesthesia 2019; 74:1305-1319. [DOI: 10.1111/anae.14757] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2019] [Indexed: 01/21/2023]
Affiliation(s)
- M. Heesen
- Department of Anaesthesia Kantonsspital Baden Switzerland
| | - B. Carvalho
- Department of Anesthesiology Stanford University School of Medicine Stanford CAUSA
| | - J. C. A. Carvalho
- Department of Anaesthesia and Department of Obstetrics and Gynaecology University of Toronto ONCanada
| | - J. J. Duvekot
- Department of Obstetrics and Gynecology Erasmus Medical Centre Rotterdam Rotterdamthe Netherlands
| | - R. A. Dyer
- Department of Anaesthesia and Peri‐operative Medicine University of Cape Town Cape TownSouth Africa
| | - D. N. Lucas
- Department of Anaesthesia Northwick Park Hospital Harrow UK
| | - N. McDonnell
- Department of Anaesthesia and Pain Medicine King Edward Memorial Hospital for Women Subiaco WA Australia
| | - S. Orbach‐Zinger
- Department of Anaesthesia Beilinson Hospital, Petach Tikvah, and Sackler Medical School Tel Aviv University Tel Aviv Israel
| | - S. M. Kinsella
- Department of Anaesthesia St Michael's Hospital Bristol UK
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57
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Dissociation of natriuresis and diuresis by oxytocin molecular forms in rats. PLoS One 2019; 14:e0219205. [PMID: 31269062 PMCID: PMC6608960 DOI: 10.1371/journal.pone.0219205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 06/18/2019] [Indexed: 12/20/2022] Open
Abstract
In the rat, oxytocin (OT) produces dose-dependent diuretic and natriuretic responses. Post-translational enzymatic conversion of the OT biosynthetic precursor forms both mature and C-terminally extended peptides. The plasma concentrations of these C-terminally extended peptides (OT-G; OT-GK and OT-GKR) are elevated in newborns and pregnant rats. Intravenous injection of OT-GKR to rats inhibits diuresis, whereas injection of amidated OT stimulates diuresis. Since OT and OT-GKR show different effects on the urine flow, we investigated whether OT-GKR modulates renal action by inhibition of the arginine-vasopressin (AVP) receptor V2 (V2R), the receptor involved in renal water reabsorption. Experiments were carried out in the 8-week-old Wistar rats receiving intravenous (iv) injections of vehicle, OT, OT-GKR or OT+OT-GKR combination. OT (10 μmol/kg) increased urine outflow by 40% (P<0.01) and sodium excretion by 47% (P<0.01). Treatment with OT-GKR (10 μmol/kg) decreased diuresis by 50% (P<0.001), decreased sodium excretion by 50% (P<0.05) and lowered potassium by 42% (P<0.05). OT antagonist (OTA) reduced diuresis and natriuresis exerted by OT, whereas the anti-diuretic effect of OT-GKR was unaffected by OTA. The treatment with V2R antagonist (V2A) in the presence and absence of OT induced diuresis, sodium and potassium outflow. V2A in the presence of OT-GKR only partially increased diuresis and natriuresis. Autoradiography and molecular docking analysis showed potent binding of OT-GKR to V2R. Finally, the release of cAMP from CHO cells overexpressing V2 receptor was induced by low concentration of AVP (EC50:4.2e-011), at higher concentrations of OT (EC50:3.2e-010) and by the highest concentrations of OT-GKR (EC50:1.1e-006). OT-GKR potentiated cAMP release when combined with AVP, but blocked cAMP release when combined with OT. These results suggest that OT-GKR by competing for the OT renal receptor (OTR) and binding to V2R in the kidney, induces anti-diuretic, anti-natriuretic, and anti-kaliuretic effects.
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58
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Evidence for intranasal oxytocin delivery to the brain: recent advances and future perspectives. Ther Deliv 2019; 9:515-525. [PMID: 29943688 DOI: 10.4155/tde-2018-0002] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The neuropeptide oxytocin plays an evolutionarily conserved role in mammalian social behavior. Despite striking effects on animal social behavior after intracerebroventricular drug delivery, this delivery mode is impractical in humans. Intranasal oxytocin delivery provides a noninvasive alternative to increase central oxytocin activity, and has shown promise as a treatment for psychiatric illnesses. Intranasal oxytocin delivery is purported to increase central oxytocin concentrations via channels surrounding trigeminal and olfactory nerve fibers, which may facilitate increased activity at central oxytocin receptors. This report outlines the evidence for intranasal oxytocin delivery increasing central concentrations or activity, identifies current knowledge gaps and highlights future research opportunities. Recent efforts to enhance intranasal oxytocin delivery via improved intranasal delivery technology and dose-ranging studies are discussed.
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59
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Ichinose W, Cherepanov SM, Shabalova AA, Yokoyama S, Yuhi T, Yamaguchi H, Watanabe A, Yamamoto Y, Okamoto H, Horike S, Terakawa J, Daikoku T, Watanabe M, Mano N, Higashida H, Shuto S. Development of a Highly Potent Analogue and a Long-Acting Analogue of Oxytocin for the Treatment of Social Impairment-Like Behaviors. J Med Chem 2019; 62:3297-3310. [PMID: 30896946 DOI: 10.1021/acs.jmedchem.8b01691] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The nonapeptide hormone oxytocin (OT) has pivotal brain roles in social recognition and interaction and is thus a promising therapeutic drug for social deficits. Because of its peptide structure, however, OT is rapidly eliminated from the bloodstream, which decreases its potential therapeutic effects in the brain. We found that newly synthesized OT analogues in which the Pro7 of OT was replaced with N-( p-fluorobenzyl)glycine (2) or N-(3-hydroxypropyl)glycine (5) exhibited highly potent binding affinities for OT receptors and Ca2+ mobilization effects by selectively activating OT receptors over vasopressin receptors in HEK cells, where 2 was identified as a superagonist ( EMax = 131%) for OT receptors. Furthermore, the two OT analogues had a remarkably long-acting effect, up to 16-24 h, on recovery from impaired social behaviors in two strains of CD38 knockout mice that exhibit autism spectrum disorder-like social behavioral deficits, whereas the effect of OT itself rapidly diminished.
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Affiliation(s)
| | | | | | | | | | - Hiroaki Yamaguchi
- Faculty of Pharmaceutical Sciences, Tohoku University and Department of Pharmaceutical Sciences , Tohoku University Hospital , Sendai 980-8574 , Japan
| | - Ayu Watanabe
- Faculty of Pharmaceutical Sciences, Tohoku University and Department of Pharmaceutical Sciences , Tohoku University Hospital , Sendai 980-8574 , Japan
| | | | | | - Shinichi Horike
- Kanazawa University Advanced Science Research Center , Kanazawa 920-8640 , Japan
| | - Junpei Terakawa
- Kanazawa University Advanced Science Research Center , Kanazawa 920-8640 , Japan
| | - Takiko Daikoku
- Kanazawa University Advanced Science Research Center , Kanazawa 920-8640 , Japan
| | | | - Nariyasu Mano
- Faculty of Pharmaceutical Sciences, Tohoku University and Department of Pharmaceutical Sciences , Tohoku University Hospital , Sendai 980-8574 , Japan
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60
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Powell L, Guastella AJ, McGreevy P, Bauman A, Edwards KM, Stamatakis E. The physiological function of oxytocin in humans and its acute response to human-dog interactions: A review of the literature. J Vet Behav 2019. [DOI: 10.1016/j.jveb.2018.10.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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61
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Abstract
Good relationships are characterized by frequent positive social interactions, such as having fun together, sharing laughs, doing kind things for one another, and expressing gratitude. Here, building on rapidly emerging findings, I articulate core features of positive interpersonal processes for the first time. This approach leads to useful specificity in predictions about relationship consequences and simultaneously contributes to both affective and relationship science, two domains that span disciplines within the psychological literature. In turn, basic research on everyday positive interpersonal processes points toward new avenues for understanding the well-established links between good relationships and health.
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Affiliation(s)
- Sara B. Algoe
- Department of Psychology and Neuroscience, The University of North Carolina at Chapel Hill
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62
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Grippo AJ, McNeal N, Watanasriyakul WT, Cacioppo S, Scotti MAL, Dagner A. Behavioral and cardiovascular consequences of disrupted oxytocin communication in cohabitating pairs of male and female prairie voles. Soc Neurosci 2019; 14:649-662. [PMID: 30658044 DOI: 10.1080/17470919.2019.1572031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Negative social experiences may influence psychological and physiological health via altered central oxytocin communication. The prairie vole is valuable for investigating the potential influence of oxytocin on responses to social experiences. Prairie voles are socially monogamous, live in pairs or family groups, and respond negatively to changes in the social environment. This study investigated the hypothesis that disruptions of oxytocin in one prairie vole of a cohabitating male-female pair would alter social behavior in that specific animal; and these behavioral changes in turn would influence the untreated partner's behavior and physiology. Pharmacological antagonism of oxytocin with the receptor antagonist L-368,899 in the male prairie vole disrupted social behaviors between the male and his untreated female partner. This manipulation also negatively influenced the behavior and cardiovascular function in the untreated female partner, including increased: (a) depression-relevant behaviors in two behavioral stressors, (b) basal mean arterial pressure and heart rate, and (c) cardiovascular reactivity to the behavioral stressors. These results suggest that disruptions of oxytocin and social behavior in one animal may produce indicators of social stress in an untreated social partner. This preliminary research provides a foundation for future studies to investigate mechanisms underlying responses to social experiences in humans.
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Affiliation(s)
- Angela J Grippo
- Department of Psychology, Northern Illinois University , DeKalb , IL , USA
| | - Neal McNeal
- Department of Psychology, Northern Illinois University , DeKalb , IL , USA
| | | | - Stephanie Cacioppo
- Department of Psychiatry and Behavioral Neuroscience and Center for Cognitive and Social Neuroscience, University of Chicago , Chicago , IL , USA
| | - Melissa-Ann L Scotti
- Department of Psychology, Northern Illinois University , DeKalb , IL , USA.,Department of Psychiatry and Brain-Body Center, University of Illinois at Chicago , Chicago , IL , USA
| | - Ashley Dagner
- Department of Psychology, Northern Illinois University , DeKalb , IL , USA
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63
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Adamo S, Pigna E, Lugarà R, Moresi V, Coletti D, Bouché M. Skeletal Muscle: A Significant Novel Neurohypophyseal Hormone-Secreting Organ. Front Physiol 2019; 9:1885. [PMID: 30670984 PMCID: PMC6331439 DOI: 10.3389/fphys.2018.01885] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 12/12/2018] [Indexed: 01/08/2023] Open
Affiliation(s)
- Sergio Adamo
- Section of Histology & Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
| | - Eva Pigna
- Section of Histology & Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
| | - Rosamaria Lugarà
- Section of Histology & Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
| | - Viviana Moresi
- Section of Histology & Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
| | - Dario Coletti
- Section of Histology & Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy.,Sorbonne Université, CNRS UMR 8256-INSERM ERL U1164, Biological Adaptation and Aging B2A, Paris, France
| | - Marina Bouché
- Section of Histology & Medical Embryology, Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Interuniversity Institute of Myology, Sapienza University of Rome, Rome, Italy
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64
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Kranc W, Brązert M, Celichowski P, Bryja A, Nawrocki MJ, Ożegowska K, Jankowski M, Jeseta M, Pawelczyk L, Bręborowicz A, Rachoń D, Skowroński MT, Bruska M, Zabel M, Nowicki M, Kempisty B. 'Heart development and morphogenesis' is a novel pathway for human ovarian granulosa cell differentiation during long‑term in vitro cultivation‑a microarray approach. Mol Med Rep 2019; 19:1705-1715. [PMID: 30628715 PMCID: PMC6390010 DOI: 10.3892/mmr.2019.9837] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 12/06/2018] [Indexed: 01/22/2023] Open
Abstract
Granulosa cells (GCs) have many functions in the endocrine system. Most notably, they produce progesterone following ovulation. However, it has recently been proven that GCs can change their properties when subjected to long-term culture. In the present study, GCs were collected from hyper-stimulated ovarian follicles during in vitro fertilization procedures. They were grown in vitro, in a long-term manner. RNA was collected following 1, 7, 15 and 30 days of culture. Expression microarrays were used for analysis, which allowed to identify groups of genes characteristic for particular cellular processes. In addition, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to validate the obtained results. Two ontological groups characteristic for processes associated with the development and morphogenesis of the heart were identified during the analyses: ‘Heart development’ and ‘heart morphogenesis’. The results of the microarrays revealed that the highest change in expression was demonstrated by the lysyl Oxidase, oxytocin receptor, nexilin F-actin binding protein, and cysteine-rich protein 3 genes. The lowest change was exhibited by odd-skipped related transcription factor 1, plakophilin 2, transcription growth factor-β receptor 1, and kinesin family member 3A. The direction of changes was confirmed by RT-qPCR results. In the present study, it was suggested that GCs may have the potential to differentiate towards other cell types under long-term in vitro culture conditions. Thus, genes belonging to the presented ontological groups can be considered as novel markers of proliferation and differentiation of GCs towards the heart muscle cells.
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Affiliation(s)
- Wiesława Kranc
- Department of Anatomy, Poznan University of Medical Sciences, 60‑781 Poznań, Poland
| | - Maciej Brązert
- Division of Infertility and Reproductive Endocrinology, Department of Gynecology, Obstetrics and Gynecological Oncology, Poznan University of Medical Sciences, 60‑535 Poznań, Poland
| | - Piotr Celichowski
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60‑781 Poznań, Poland
| | - Artur Bryja
- Department of Anatomy, Poznan University of Medical Sciences, 60‑781 Poznań, Poland
| | - Mariusz J Nawrocki
- Department of Anatomy, Poznan University of Medical Sciences, 60‑781 Poznań, Poland
| | - Katarzyna Ożegowska
- Division of Infertility and Reproductive Endocrinology, Department of Gynecology, Obstetrics and Gynecological Oncology, Poznan University of Medical Sciences, 60‑535 Poznań, Poland
| | - Maurycy Jankowski
- Department of Anatomy, Poznan University of Medical Sciences, 60‑781 Poznań, Poland
| | - Michal Jeseta
- Department of Obstetrics and Gynecology, University Hospital and Masaryk University, 62500 Brno, Czech Republic
| | - Leszek Pawelczyk
- Division of Infertility and Reproductive Endocrinology, Department of Gynecology, Obstetrics and Gynecological Oncology, Poznan University of Medical Sciences, 60‑535 Poznań, Poland
| | - Andrzej Bręborowicz
- Department of Pathophysiology, Poznań University of Medical Sciences, 60‑806 Poznań, Poland
| | - Dominik Rachoń
- Department of Clinical and Experimental Endocrinology, Medical University of Gdańsk, 80‑211 Gdańsk, Poland
| | - Mariusz T Skowroński
- Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10‑719 Olsztyn, Poland
| | - Małgorzata Bruska
- Department of Anatomy, Poznan University of Medical Sciences, 60‑781 Poznań, Poland
| | - Maciej Zabel
- Division of Histology and Embryology, Department of Human Morphology and Embryology, Wroclaw Medical University, 50‑368 Wroclaw, Poland
| | - Michał Nowicki
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60‑781 Poznań, Poland
| | - Bartosz Kempisty
- Department of Anatomy, Poznan University of Medical Sciences, 60‑781 Poznań, Poland
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Abstract
The neurohypophyseal hormone oxytocin (OT) and related modulators of the oxytocin receptor (OTR) have been the subject of intensive research for nearly seven decades. Despite having rather poor drug-like properties, OT is used as a treatment for labor induction, postpartum hemorrhage, and lactation support. The potential use of OT in the treatment of central nervous system (CNS)-related diseases has recently renewed interest in the pharmacology of OT. Oxytocin is one of the most extensively studied cyclic peptides and since the elucidation of its structure in 1953 thousands of peptidic OT analogs with antagonistic and agonistic properties have been synthesized and biologically evaluated. Among them are atosiban, a mixed oxytocin receptor (OTR)/vasopressin 1a receptor (V1aR) antagonist used as a tocolytic agent approved (in certain countries), and carbetocin, a longer acting OTR agonist on the market for the treatment of postpartum hemorrhage. Many other OT analogs with improved pharmacological properties (e.g., barusiban, Antag III) have been identified. These peptides have been tested in clinical trials and/or used as pharmacological tools. In this chapter, the modifications of the OT molecule that led to the discovery of these compounds are reviewed.
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Jovanovic P, Spasojevic N, Puskas N, Stefanovic B, Dronjak S. Oxytocin modulates the expression of norepinephrine transporter, β 3-adrenoceptors and muscarinic M 2 receptors in the hearts of socially isolated rats. Peptides 2019; 111:132-141. [PMID: 29969648 DOI: 10.1016/j.peptides.2018.06.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 06/25/2018] [Accepted: 06/26/2018] [Indexed: 10/28/2022]
Abstract
Social stress produces behavioral alterations, and autonomic and cardiac dysfunction in animals. In addition to the well-known roles of oxytocin on birth and maternal bonding, recent evidence shows that this neuropeptide possesses cardio-protective properties. However less is known about its role in the regulation of the autonomic nervous system. The direct influence of oxytocin on the cardiac catecholamine synthesizing enzyme, transport beta-adrenoceptors and muscarinic receptors in animals exposed to chronic social isolation stress has not yet been studied. In this study, we examined the influence of peripheral chronic oxytocin treatment on anxiety-related behavior, the morphology and content of epinephrine and norepinephrine, mRNA and protein levels of tyrosine hydroxylase (TH), norepinephrine transporter (NET) and receptors <beta> 3 (β3-AR) and muscarinic 2 (M2 MR) in the right and left cardiac atrium and ventricle of chronically socially isolated male rats. Our results show that oxytocin treatment exhibits an anxiolytic effect, decreases the heart/body weight ratio and prevents the hypertrophy of cardiomyocytes in the wall of the left ventricle of stressed rats. Epinephrine and TH protein levels were unchanged after prolonged oxytocin treatment. Peripheral oxytocin administration led to the enhancement of gene expression of β3-AR in both atria, NET protein in the left ventricle and gene expression of M2 MR in the right atrium and the left ventricle of chronically socially isolated rats. The study provides evidence that oxytocin treatment in chronically socially isolated animals enhances norepinephrine uptake and expression of cardio-inhibitory receptors in cardiac tissues, which could have a beneficial effect on the cardiovascular system under the increased activity of the sympathoneural system.
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Affiliation(s)
- Predrag Jovanovic
- Department of Molecular Biology and Endocrinology, Institute of Nuclear Sciences "Vinca", University of Belgrade, Belgrade, Serbia
| | - Natasa Spasojevic
- Department of Molecular Biology and Endocrinology, Institute of Nuclear Sciences "Vinca", University of Belgrade, Belgrade, Serbia
| | - Nela Puskas
- Faculty of Medicine, Institute of Histology and Embryology "Aleksandar Đ. Kostić", University of Belgrade, Višegradska, Belgrade, Serbia
| | - Bojana Stefanovic
- Department of Molecular Biology and Endocrinology, Institute of Nuclear Sciences "Vinca", University of Belgrade, Belgrade, Serbia
| | - Sladjana Dronjak
- Department of Molecular Biology and Endocrinology, Institute of Nuclear Sciences "Vinca", University of Belgrade, Belgrade, Serbia.
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Cataldo I, Azhari A, Lepri B, Esposito G. Oxytocin receptors (OXTR) and early parental care: An interaction that modulates psychiatric disorders. RESEARCH IN DEVELOPMENTAL DISABILITIES 2018; 82:27-38. [PMID: 29033100 DOI: 10.1016/j.ridd.2017.10.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 09/21/2017] [Accepted: 10/05/2017] [Indexed: 05/12/2023]
Abstract
Oxytocin plays an important role in the modulation of social behavior in both typical and atypical contexts. Also, the quality of early parental care sets the foundation for long-term psychosocial development. Here, we review studies that investigated how oxytocin receptor (OXTR) interacts with early parental care experiences to influence the development of psychiatric disorders. Using Pubmed, Scopus and PsycInfo databases, we utilized the keyword "OXTR" before subsequently searching for specific OXTR single nucleotide polymorphisms (SNPs), generating a list of 598 studies in total. The papers were catalogued in a database and filtered for gene-environment interaction, psychiatric disorders and involvement of parental care. In particular, rs53576 and rs2254298 were found to be significantly involved in gene-environment interactions that modulated risk for psychopathology and the following psychiatric disorders: disruptive behavior, depression, anxiety, eating disorder and borderline personality disorder. These results illustrate the importance of OXTR in mediating the impact of parental care on the emergence of psychopathology.
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Affiliation(s)
- Ilaria Cataldo
- Department of Psychology and Cognitive Science, University of Trento, Italy; Mobile and Social Computing Lab, Fondazione Bruno Kessler, Trento, Italy
| | - Atiqah Azhari
- Division of Psychology, School of Social Sciences, Nanyang Technological University, Singapore
| | - Bruno Lepri
- Mobile and Social Computing Lab, Fondazione Bruno Kessler, Trento, Italy
| | - Gianluca Esposito
- Department of Psychology and Cognitive Science, University of Trento, Italy; Division of Psychology, School of Social Sciences, Nanyang Technological University, Singapore.
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Taha MF, Javeri A, Karimipour M, Yamaghani MS. Priming with oxytocin and relaxin improves cardiac differentiation of adipose tissue-derived stem cells. J Cell Biochem 2018; 120:5825-5834. [PMID: 30362159 DOI: 10.1002/jcb.27868] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 09/20/2018] [Indexed: 11/07/2022]
Abstract
Previous studies have identified the heart as a source and a target tissue for oxytocin and relaxin hormones. These hormones play important roles in the regulation of cardiovascular function and repair of ischemic heart injury. In the current study, we examined the impact of oxytocin and relaxin on the development of cardiomyocytes from mesenchymal stem cells. For this purpose, mouse adipose tissue-derived stem cells (ADSCs) were treated with different concentrations of oxytocin or relaxin for 4 days. Three weeks after initiation of cardiac induction, differentiated ADSCs expressed cardiac-specific genes, Gata4, Mef2c, Nkx2.5, Tbx5, α- and β-Mhc, Mlc2v, Mlc2a and Anp, and cardiac proteins including connexin 43, desmin and α-actinin. 10 -7 M oxytocin and 50 ng/mL relaxin induced the maximum upregulation in the expression of cardiac markers. A combination of oxytocin and relaxin induced cardiomyocyte differentiation more potently than the individual factors. In our experiment, oxytocin-relaxin combination increased the population of cardiac troponin I-expressing cells to 6.84% as compared with 2.36% for the untreated ADSCs, 3.7% for oxytocin treatment and 3.41% for relaxin treatment groups. In summary, the results of this study indicated that oxytocin and relaxin hormones individually and in combination can improve cardiac differentiation of ADSCs, and treatment of the ADSCs and possibly other mesenchymal stem cells with these hormones may enhance their cardiogenic differentiation and survival after transplantation into the ischemic heart tissue.
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Affiliation(s)
- Masoumeh Fakhr Taha
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Arash Javeri
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Mojtaba Karimipour
- Department of Anatomy, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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Napso T, Yong HEJ, Lopez-Tello J, Sferruzzi-Perri AN. The Role of Placental Hormones in Mediating Maternal Adaptations to Support Pregnancy and Lactation. Front Physiol 2018; 9:1091. [PMID: 30174608 PMCID: PMC6108594 DOI: 10.3389/fphys.2018.01091] [Citation(s) in RCA: 245] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 07/23/2018] [Indexed: 12/12/2022] Open
Abstract
During pregnancy, the mother must adapt her body systems to support nutrient and oxygen supply for growth of the baby in utero and during the subsequent lactation. These include changes in the cardiovascular, pulmonary, immune and metabolic systems of the mother. Failure to appropriately adjust maternal physiology to the pregnant state may result in pregnancy complications, including gestational diabetes and abnormal birth weight, which can further lead to a range of medically significant complications for the mother and baby. The placenta, which forms the functional interface separating the maternal and fetal circulations, is important for mediating adaptations in maternal physiology. It secretes a plethora of hormones into the maternal circulation which modulate her physiology and transfers the oxygen and nutrients available to the fetus for growth. Among these placental hormones, the prolactin-growth hormone family, steroids and neuropeptides play critical roles in driving maternal physiological adaptations during pregnancy. This review examines the changes that occur in maternal physiology in response to pregnancy and the significance of placental hormone production in mediating such changes.
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Affiliation(s)
- Tina Napso
- Department of Physiology, Development and Neuroscience, Centre for Trophoblast Research, University of Cambridge, Cambridge, United Kingdom
| | - Hannah E J Yong
- Department of Physiology, Development and Neuroscience, Centre for Trophoblast Research, University of Cambridge, Cambridge, United Kingdom
| | - Jorge Lopez-Tello
- Department of Physiology, Development and Neuroscience, Centre for Trophoblast Research, University of Cambridge, Cambridge, United Kingdom
| | - Amanda N Sferruzzi-Perri
- Department of Physiology, Development and Neuroscience, Centre for Trophoblast Research, University of Cambridge, Cambridge, United Kingdom
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70
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Jurek B, Neumann ID. The Oxytocin Receptor: From Intracellular Signaling to Behavior. Physiol Rev 2018; 98:1805-1908. [DOI: 10.1152/physrev.00031.2017] [Citation(s) in RCA: 408] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The many facets of the oxytocin (OXT) system of the brain and periphery elicited nearly 25,000 publications since 1930 (see FIGURE 1 , as listed in PubMed), which revealed central roles for OXT and its receptor (OXTR) in reproduction, and social and emotional behaviors in animal and human studies focusing on mental and physical health and disease. In this review, we discuss the mechanisms of OXT expression and release, expression and binding of the OXTR in brain and periphery, OXTR-coupled signaling cascades, and their involvement in behavioral outcomes to assemble a comprehensive picture of the central and peripheral OXT system. Traditionally known for its role in milk let-down and uterine contraction during labor, OXT also has implications in physiological, and also behavioral, aspects of reproduction, such as sexual and maternal behaviors and pair bonding, but also anxiety, trust, sociability, food intake, or even drug abuse. The many facets of OXT are, on a molecular basis, brought about by a single receptor. The OXTR, a 7-transmembrane G protein-coupled receptor capable of binding to either Gαior Gαqproteins, activates a set of signaling cascades, such as the MAPK, PKC, PLC, or CaMK pathways, which converge on transcription factors like CREB or MEF-2. The cellular response to OXT includes regulation of neurite outgrowth, cellular viability, and increased survival. OXTergic projections in the brain represent anxiety and stress-regulating circuits connecting the paraventricular nucleus of the hypothalamus, amygdala, bed nucleus of the stria terminalis, or the medial prefrontal cortex. Which OXT-induced patterns finally alter the behavior of an animal or a human being is still poorly understood, and studying those OXTR-coupled signaling cascades is one initial step toward a better understanding of the molecular background of those behavioral effects.
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Affiliation(s)
- Benjamin Jurek
- Department of Behavioural and Molecular Neurobiology, Institute of Zoology, University of Regensburg, Regensburg, Germany
| | - Inga D. Neumann
- Department of Behavioural and Molecular Neurobiology, Institute of Zoology, University of Regensburg, Regensburg, Germany
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Jung C, Wernly B, Bjursell M, Wiseman J, Admyre T, Wikström J, Palmér M, Seeliger F, Lichtenauer M, Franz M, Frick C, Andersson AK, Elg M, Pernow J, Sjöquist PO, Bohlooly-Y M, Wang QD. Cardiac-Specific Overexpression of Oxytocin Receptor Leads to Cardiomyopathy in Mice. J Card Fail 2018; 24:470-478. [PMID: 29802896 DOI: 10.1016/j.cardfail.2018.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 04/18/2018] [Accepted: 05/11/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND Oxytocin (Oxt) and its receptor (Oxtr) gene system has been implicated in cardiomyogenesis and cardioprotection; however, effects of chronic activation of Oxtr are not known. We generated and investigated transgenic (TG) mice that overexpress Oxtr specifically in the heart. METHODS AND RESULTS Cardiac-specific overexpression of Oxtr was obtained by having the α-major histocompatibility complex promoter drive the mouse Oxtr gene (α-Mhc-Oxtr). Left ventricular (LV) function and remodeling were assessed by magnetic resonance imaging and echocardiography. In α-Mhc-Oxtr TG mice, LV ejection fraction was severely compromised at 14 weeks of age compared with wild-type (WT) littermates (25 ± 6% vs 63 ± 3%; P < .001). LV end-diastolic volume was larger in the TG mice (103 ± 6 µL vs 67 ± 5 µL; P < .001). α-Mhc-Oxtr TG animals displayed cardiac fibrosis, atrial thrombus, and increased expression of pro-fibrogenic genes. Mortality of α-Mhc-Oxtr TG animals was 45% compared with 0% (P < .0001) of WT littermates by 20 weeks of age. Most cardiomyocytes of α-Mhc-Oxtr TG animals but not WT littermates (68.0 ± 12.1% vs 5.6 ± 2.4%; P = .008) were positive in staining for nuclear factor of activated T cells (NFAT). To study if thrombin inhibitor prevents thrombus formation, a cohort of 7-week-old α-Mhc-Oxtr TG mice were treated for 12 weeks with AZD0837, a potent thrombin inhibitor. Treatment with AZD0837 reduced thrombus formation (P < .05) and tended to attenuate fibrosis and increase survival. CONCLUSIONS Cardiac-specific overexpression of Oxtr had negative consequences on LV function and survival in mice. The present findings necessitate further studies to investigate potential adverse effects of chronic Oxt administration. We provide a possible mechanism of Oxtr overexpression leading to heart failure by nuclear factor of activated T cell signaling. The recapitulation of human heart failure and the beneficial effects of the antithrombin inhibitor render the α-Mhc-Oxtr TG mice a promising tool in drug discovery for heart failure.
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Affiliation(s)
- Christian Jung
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Duesseldorf, Düsseldorf, Germany.
| | - Bernhard Wernly
- Clinic of Internal Medicine II, Department of Cardiology, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Mikael Bjursell
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - John Wiseman
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Therese Admyre
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Johannes Wikström
- Bioscience Heart Failure, Cardiovascular, Renal and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Malin Palmér
- Bioscience Heart Failure, Cardiovascular, Renal and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Frank Seeliger
- Drug safety and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Michael Lichtenauer
- Clinic of Internal Medicine II, Department of Cardiology, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | | | - Charlotte Frick
- Bioscience Heart Failure, Cardiovascular, Renal and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Ann-Katrin Andersson
- Bioscience Heart Failure, Cardiovascular, Renal and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Margareta Elg
- Bioscience Heart Failure, Cardiovascular, Renal and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - John Pernow
- Department of Cardiology, Karolinska Institute, Solna, Sweden
| | - Per-Ove Sjöquist
- Bioscience Heart Failure, Cardiovascular, Renal and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | | | - Qing-Dong Wang
- Bioscience Heart Failure, Cardiovascular, Renal and Metabolism, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden.
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Marsh C, Agius PA, Jayakody G, Shajehan R, Abeywickrema C, Durrant K, Luchters S, Holmes W. Factors associated with social participation amongst elders in rural Sri Lanka: a cross-sectional mixed methods analysis. BMC Public Health 2018; 18:636. [PMID: 29769054 PMCID: PMC5956789 DOI: 10.1186/s12889-018-5482-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 04/19/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Populations of low and middle-income countries are ageing rapidly; there is a need for policies that support an increase in the duration of old age lived in good health. There is growing evidence that social participation protects against morbidity and mortality, but few studies explore patterns of social participation. Analysis of baseline quantitative and qualitative data from a trial of the impact of Elders' Clubs on health and well-being in the hill country of Sri Lanka provided an opportunity to better understand the extent of, and influences on, social participation among elders. METHODS We analysed data from 1028 baseline survey respondents and from 12 focus group discussions. Participants were consenting elders, aged over 60 years, living in Tamil tea plantation communities or Sinhala villages in 40 randomly selected local government divisions. We assessed participation in organised social activities using self-reported attendance during the previous year. Multivariable regression analyses were used to explore associations with community and individual factors. The quantitative findings were complemented by thematic analysis of focus group discussion transcripts. RESULTS Social participation in these poor, geographically isolated communities was low: 63% reported 'no' or 'very low' engagement with organised activities. Plantation community elders reported significantly less participation than village elders. Attendance at religious activities was common and valued. Individual factors with significant positive association with social participation in multivariable analyses were being younger, male, Sinhala, married, employed, and satisfied with one's health. Domestic work and cultural constraints often prevented older women from attending organised activities. CONCLUSIONS Elders likely to benefit most from greater social contact are those most likely to face barriers, including older women, the oldest old, those living alone and those in poor health. Understanding these barriers can inform strategies to overcome them. This might include opportunities for both informal and formal social contact close to elders' homes, consulting elders, providing childcare, improving physical access, advocating with elders' families and religious leaders, and encouraging mutual support and inter-generational activities. Influences on social participation are interrelated and vary with the history, culture and community environment. Further study is required in other low and middle-income country contexts.
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Affiliation(s)
| | - Paul A Agius
- Burnet Institute, Melbourne, Australia.,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.,Judith Lumley Centre, La Trobe University, Melbourne, Australia
| | | | | | | | - Kelly Durrant
- Burnet Institute, Melbourne, Australia.,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Stanley Luchters
- Burnet Institute, Melbourne, Australia.,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.,International Centre for Reproductive Health, Department of Obstetrics and Gynecology, Ghent University, Ghent, Belgium
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Epigenetic Programming of Synthesis, Release, and/or Receptor Expression of Common Mediators Participating in the Risk/Resilience for Comorbid Stress-Related Disorders and Coronary Artery Disease. Int J Mol Sci 2018; 19:ijms19041224. [PMID: 29670001 PMCID: PMC5979500 DOI: 10.3390/ijms19041224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/09/2018] [Accepted: 04/16/2018] [Indexed: 02/07/2023] Open
Abstract
Corticotrophin releasing factor, vasopressin, oxytocin, natriuretic hormones, angiotensin, neuregulins, some purinergic substances, and some cytokines contribute to the long-term modulation and restructuring of cardiovascular regulation networks and, at the same time, have relevance in situations of comorbid abnormal stress responses. The synthesis, release, and receptor expression of these mediators seem to be under epigenetic control since early stages of life, possibly underlying the comorbidity to coronary artery disease (CAD) and stress-related disorders (SRD). The exposure to environmental conditions, such as stress, during critical periods in early life may cause epigenetic programming modifying the development of pathways that lead to stable and long-lasting alterations in the functioning of these mediators during adulthood, determining the risk of or resilience to CAD and SRD. However, in contrast to genetic information, epigenetic marks may be dynamically altered throughout the lifespan. Therefore, epigenetics may be reprogrammed if the individual accepts the challenge to undertake changes in their lifestyle. Alternatively, epigenetics may remain fixed and/or even be inherited in the next generation. In this paper, we analyze some of the common neuroendocrine functions of these mediators in CAD and SRD and summarize the evidence indicating that they are under early programming to put forward the theoretical hypothesis that the comorbidity of these diseases might be epigenetically programmed and modified over the lifespan of the individual.
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74
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Akour A, Kasabri V, Bulatova N, Al Muhaissen S, Naffa R, Fahmawi H, Momani M, Zayed A, Bustanji Y. Association of Oxytocin with Glucose Intolerance and Inflammation Biomarkers in Metabolic Syndrome Patients with and without Prediabetes. Rev Diabet Stud 2018; 14:364-371. [PMID: 29590229 DOI: 10.1900/rds.2017.14.364] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES The aim of this study was to explore the differences in OXT levels in metabolic syndrome (MetS) subjects, newly diagnosed type 2 diabetes mellitus (T2D), and prediabetes subjects vs. MetS subjects without glucose intolerance (non-diabetic MetS). It was also intended to determine the relationship between plasma OXT levels and inflammatory markers in those subjects. METHODS Along with 45 lean and normoglycemic controls, a total of 190 MetS subjects (61 men, 129 women) were enrolled. Colorimetric enzymatic assays of the following components were performed: plasma OXT, high-sensitivity C-reactive protein (hs-CRP), macrophage chemoattractant protein 1 (MCP-1), plasminogen activator inhibitor 1 (PAI-1), matrix metalloproteinase 9 (MMP-9), resistin, adiponectin, leptin, macrophage migration inhibitory factor (MIF), tumor necrosis factor α (TNF-α), thrompospondin 1 (TSP-1), interleukin 10 (IL-10), interleukin 6 (IL-6), and glucagon. RESULTS hsCRP, PAI-1, resistin, leptin-to-adiponection-ratio (LAR), TNF-α, TSP-1, and MIF were significantly higher in both MetS groups (prediabetic and T2DM) than in MetS-only subjects. Leptin and MMP-9 were significantly higher in the MetS-T2DM group (but not in MetS-prediabetics) vs. MetS-only subjects. Conversely adiponectin, OXT, MCP-1, and IL-10 were significantly lower in both MetS groups (prediabetic and T2DM) than in MetS-only subjects. There was no marked discrepancy in either glucagon or IL-6 levels among the three MetS groups. In the entire MetS study population, OXT correlated substantially and proportionally with MCP-1, IL-10, and IL-6; it correlated negatively with HbA1c, fasting plasma glucose (FPG), PAI-1, MMP-9, TNF-α, TSP-1, resistin, adiponectin, leptin, LAR, and MIF. No association could be observed between OXT and glucagon. CONCLUSIONS OXT may be a substantial surrogate predictive/prognostic tool and putative pharmacotherapeutic target in metabolic anomalies and related disorders.
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Affiliation(s)
- Amal Akour
- School of Pharmacy and Medicine, the University of Jordan, Amman, Jordan
| | - Violet Kasabri
- School of Pharmacy and Medicine, the University of Jordan, Amman, Jordan
| | - Nailya Bulatova
- School of Pharmacy and Medicine, the University of Jordan, Amman, Jordan
| | - Suha Al Muhaissen
- School of Pharmacy and Medicine, the University of Jordan, Amman, Jordan
| | - Randa Naffa
- School of Pharmacy and Medicine, the University of Jordan, Amman, Jordan
| | - Hiba Fahmawi
- School of Pharmacy and Medicine, the University of Jordan, Amman, Jordan
| | - Munther Momani
- Endocrinology and Diabetes Unit, the University of Jordan Hospital, Amman, Jordan
| | - Ayman Zayed
- Endocrinology and Diabetes Unit, the University of Jordan Hospital, Amman, Jordan
| | - Yasser Bustanji
- School of Pharmacy and Medicine, the University of Jordan, Amman, Jordan
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Oxytocin alters cell fate selection of rat neural progenitor cells in vitro. PLoS One 2018; 13:e0191160. [PMID: 29346405 PMCID: PMC5773179 DOI: 10.1371/journal.pone.0191160] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 01/01/2018] [Indexed: 12/14/2022] Open
Abstract
Synthetic oxytocin (sOT) is widely used during labor, yet little is known about its effects on fetal brain development despite evidence that it reaches the fetal circulation. Here, we tested the hypothesis that sOT would affect early neurodevelopment by investigating its effects on neural progenitor cells (NPC) from embryonic day 14 rat pups. NPCs expressed the oxytocin receptor (OXTR), which was downregulated by 45% upon prolonged treatment with sOT. Next, we examined the effects of sOT on NPC death, apoptosis, proliferation, and differentiation using antibodies to NeuN (neurons), Olig2 (oligodendrocytes), and GFAP (astrocytes). Treated NPCs were analysed with unbiased high-throughput immunocytochemistry. Neither 6 nor 24 h exposure to 100 pM or 100 nM sOT had an effect on viability as assessed by PI or CC-3 immunocytochemistry. Similarly, sOT had negligible effect on NPC proliferation, except that the overall rate of NPC proliferation was higher in the 24 h compared to the 6 h group regardless of sOT exposure. The most significant finding was that sOT exposure caused NPCs to select a predominantly neuronal lineage, along with a concomitant decrease in glial cells. Collectively, our data suggest that perinatal exposure to sOT can have neurodevelopmental consequences for the fetus, and support the need for in vivo anatomical and behavioral studies in offspring exposed to sOT in utero.
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76
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Lefevre A, Mottolese R, Dirheimer M, Mottolese C, Duhamel JR, Sirigu A. A comparison of methods to measure central and peripheral oxytocin concentrations in human and non-human primates. Sci Rep 2017; 7:17222. [PMID: 29222505 PMCID: PMC5722864 DOI: 10.1038/s41598-017-17674-7] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/27/2017] [Indexed: 12/25/2022] Open
Abstract
Oxytocin (OT) concentration in the blood is considered to be a marker of its action in the brain. However, two problems have emerged when measuring OT level in the blood. First, it is unclear whether different methods of assessment lead to similar OT values. Second, it is unclear if plasma OT concentrations is informative on what OT does in the brain. To clarify these issues, we collected cerebrospinal fluid (CSF) from the brain ventricle of 25 patients during surgery to compare with plasma OT after simultaneous blood withdrawal. Additionally, we collected 12 CSF and blood samples from non-human primates while awake or under anaesthesia. We used four methods to assay OT concentrations: Commercial EIA with/without extraction, laboratory developed EIA with filtration and RIA with extraction. Three of these methods showed a positive correlation between plasma and CSF OT, suggesting a link between plasma and central OT, at least under specific testing conditions. However, none of the methods correlated to each other. Our results show major disagreements among methods used here to measure peripheral and brain OT and therefore they call for more caution when plasma OT is taken as a marker of central OT.
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Affiliation(s)
- Arthur Lefevre
- Institut des Sciences Cognitives Marc Jeannerod, Centre National de la Recherche Scientifique, UMR 5229, Bron, France.
- Université Claude Bernard Lyon 1, Lyon, France.
| | - Raphaëlle Mottolese
- Institut des Sciences Cognitives Marc Jeannerod, Centre National de la Recherche Scientifique, UMR 5229, Bron, France
- Université Claude Bernard Lyon 1, Lyon, France
| | - Manon Dirheimer
- Institut des Sciences Cognitives Marc Jeannerod, Centre National de la Recherche Scientifique, UMR 5229, Bron, France
| | - Carmine Mottolese
- Institut des Sciences Cognitives Marc Jeannerod, Centre National de la Recherche Scientifique, UMR 5229, Bron, France
- Neurosurgery Unit 500, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Lyon, France
| | - Jean-René Duhamel
- Institut des Sciences Cognitives Marc Jeannerod, Centre National de la Recherche Scientifique, UMR 5229, Bron, France
- Université Claude Bernard Lyon 1, Lyon, France
| | - Angela Sirigu
- Institut des Sciences Cognitives Marc Jeannerod, Centre National de la Recherche Scientifique, UMR 5229, Bron, France.
- Université Claude Bernard Lyon 1, Lyon, France.
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Bytautiene Prewit E, Kechichian T, Okunade D, Yin H, Stuebe AM. Effect of Normal Pregnancy Followed by Lactation on Long-Term Maternal Health in a Mouse Model. Reprod Sci 2017; 25:1186-1196. [PMID: 29017419 DOI: 10.1177/1933719117734316] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Although it has been widely accepted that pregnancies with complications are associated with increased maternal cardiovascular risk later in life, there is no consensus if noncomplicated pregnancy followed by lactation plays a protective role or is a risk factor. The objective of this study was to investigate the effects of normal pregnancy and lactation on long-term maternal health in a mouse model. CD-1 mice were allocated to breeding (primigravid [PG]) and nonbreeding (nulligravid [NG]) groups. The PG group proceeded through normal pregnancy and delivery. Using a telemetry system, blood pressure (BP) was analyzed in the PG group at 6 months postpartum and in age-matched NG mice. Serum analytes, gene expressions, and protein levels were determined using appropriate analysis methods. Primigravid mice had significantly lower systolic and diastolic BP and fasting glucose levels. Circulating oxytocin (OXT) levels were significantly higher in PG mice. Oxt gene expression was significantly higher in the heart and aorta and lower in visceral adipose tissue (VAT) from PG mice. The oxytocin receptor ( Oxtr) gene expression was significantly higher in the heart, aorta, and VAT from PG animals. The level of Oxtr DNA hypermethylation and the expression of mmu-miR-29a were significantly lower in the hearts of PG mice. In PG VAT, glucose transporter-4 expression was significantly higher. Our study demonstrates that a history of normal pregnancy followed by lactation was associated with lower maternal cardiovascular risk factors later in life in female mouse.
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Affiliation(s)
- Egle Bytautiene Prewit
- 1 Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Talar Kechichian
- 1 Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Deborah Okunade
- 2 Summer Undergraduate Research Program, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Huaizhi Yin
- 1 Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Alison M Stuebe
- 3 Department of Obstetrics & Gynecology, The University of North Carolina School of Medicine, Chapel Hill, NC, USA
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Prediction and Subtyping of Hypertension from Pan-Tissue Transcriptomic and Genetic Analyses. Genetics 2017; 207:1121-1134. [PMID: 28899996 DOI: 10.1534/genetics.117.300280] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 08/23/2017] [Indexed: 01/01/2023] Open
Abstract
Hypertension (HT) is a complex systemic disease involving transcriptional changes in multiple organs. Here we systematically investigate the pan-tissue transcriptional and genetic landscape of HT spanning dozens of tissues in hundreds of individuals. We find that in several tissues, previously identified HT-linked genes are dysregulated and the gene expression profile is predictive of HT. Importantly, many expression quantitative trait loci (eQTL) SNPs associated with the population variance of the dysregulated genes are linked with blood pressure in an independent genome-wide association study, suggesting that the functional effect of HT-associated SNPs may be mediated through tissue-specific transcriptional dysregulation. Analyses of pan-tissue transcriptional dysregulation profile, as well as eQTL SNPs underlying the dysregulated genes, reveals substantial heterogeneity among the HT patients, revealing two broad groupings - a Diffused group where several tissues exhibit HT-associated molecular alterations and a Localized group where such alterations are localized to very few tissues. These two patient subgroups differ in several clinical phenotypes including respiratory, cerebrovascular, diabetes, and heart disease. These findings suggest that the Diffused and Localized subgroups may be driven by different molecular mechanisms and have different genetic underpinning.
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Avercenc-Léger L, Guerci P, Virion JM, Cauchois G, Hupont S, Rahouadj R, Magdalou J, Stoltz JF, Bensoussan D, Huselstein C, Reppel L. Umbilical cord-derived mesenchymal stromal cells: predictive obstetric factors for cell proliferation and chondrogenic differentiation. Stem Cell Res Ther 2017; 8:161. [PMID: 28676126 PMCID: PMC5497358 DOI: 10.1186/s13287-017-0609-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 05/09/2017] [Accepted: 06/14/2017] [Indexed: 01/20/2023] Open
Abstract
Background The umbilical cord is becoming a notable alternative to bone marrow (BM) as a source of mesenchymal stromal cells (MSC). Although age-dependent variations in BM-MSC are well described, less data are available for MSC isolated from Wharton’s jelly (WJ-MSC). We initiated a study to identify whether obstetric factors influenced MSC properties. We aimed to evaluate the correlation between a large number of obstetric factors collected during pregnancy and until peripartum (related to the mother, the labor and delivery, and the newborn) with WJ-MSC proliferation and chondrogenic differentiation parameters. Methods Correlations were made between 27 obstetric factors and 8 biological indicators including doubling time at passage (P)1 and P2, the percentage of proteoglycans and collagens, and the relative transcriptional expression of Sox-9, aggrecans, and total type 2 collagen (Coll2T). Results Amongst the obstetric factors considered, birth weight, the number of amenorrhea weeks, placental weight, normal pregnancy, and the absence of preeclampsia were identified as relevant factors for cell expansion, using multivariate linear regression analysis. Since all the above parameters are related to term, we concluded that WJ-MSC from healthy, full-term infants exhibit greater proliferation capacity. As for chondrogenesis, we also observed that obstetric factors influencing proliferation seemed beneficial, with no negative impact on MSC differentiation. Conclusions Awareness of obstetric factors influencing the proliferation and/or differentiation of WJ-MSC will make it possible to define criteria for collecting optimal umbilical cords with the aim of decreasing the variability of WJ-MSC batches produced for clinical use in cell and tissue engineering. Electronic supplementary material The online version of this article (doi:10.1186/s13287-017-0609-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Léonore Avercenc-Léger
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Philippe Guerci
- CHRU de Nancy, Maternité Régionale Universitaire, Département d'Anesthésie-Réanimation, 54000, Nancy, France
| | - Jean-Marc Virion
- CHRU de Nancy, Epidémiologie et Evaluation Cliniques, 54500, Vandœuvre-lès-Nancy, France
| | - Ghislaine Cauchois
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Sébastien Hupont
- FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Rachid Rahouadj
- Université de Lorraine, 54000, Nancy, France.,UMR 7563 CNRS-Université de Lorraine, LEMTA, 54500, Vandœuvre-lès-Nancy, France
| | - Jacques Magdalou
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Jean-François Stoltz
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,CHRU de Nancy, Unité de Thérapie Cellulaire¸ Banque de Tissus, 54500, Vandœuvre-lès-Nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Danièle Bensoussan
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,CHRU de Nancy, Unité de Thérapie Cellulaire¸ Banque de Tissus, 54500, Vandœuvre-lès-Nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Céline Huselstein
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Loïc Reppel
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France. .,CHRU de Nancy, Unité de Thérapie Cellulaire¸ Banque de Tissus, 54500, Vandœuvre-lès-Nancy, France. .,Université de Lorraine, 54000, Nancy, France. .,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France.
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Liccardi G, Calzetta L, Salzillo A, Puxeddu E, Rogliani P. Relationship between oxytocin/vasopressin and latex in obstetric surgery: how to recognize (and prevent) allergic reactions and differentiate them from side effects? THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2017; 5:873. [PMID: 28286159 DOI: 10.1016/j.jaip.2016.10.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 09/19/2016] [Accepted: 10/21/2016] [Indexed: 10/20/2022]
Affiliation(s)
- Gennaro Liccardi
- Division of Pneumology and Allergology, Department of Pulmonology, Haematology and Oncology, High Speciality "A. Cardarelli" Hospital, Naples, Italy; Postgraduate School of Respiratory Medicine, Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy.
| | - Luigino Calzetta
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Antonello Salzillo
- Division of Pneumology and Allergology, Department of Pulmonology, Haematology and Oncology, High Speciality "A. Cardarelli" Hospital, Naples, Italy
| | - Ermanno Puxeddu
- Postgraduate School of Respiratory Medicine, Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy; Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Paola Rogliani
- Postgraduate School of Respiratory Medicine, Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy; Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
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83
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Sack M, Spieler D, Wizelman L, Epple G, Stich J, Zaba M, Schmidt U. Intranasal oxytocin reduces provoked symptoms in female patients with posttraumatic stress disorder despite exerting sympathomimetic and positive chronotropic effects in a randomized controlled trial. BMC Med 2017; 15:40. [PMID: 28209155 PMCID: PMC5314583 DOI: 10.1186/s12916-017-0801-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 01/21/2017] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Posttraumatic stress disorder (PTSD) is a severe psychiatric disease accompanied by neuroendocrine changes such as adrenergic overdrive and hence an elevated cardiovascular morbidity. Current pharmacotherapeutic options for PTSD are less than suboptimal, necessitating the development of PTSD-specific drugs. Although the neuropeptide oxytocin has been repeatedly suggested to be effective in PTSD treatment, there are, to our knowledge, only three studies that have assessed its efficacy on the intensity of PTSD symptoms in PTSD patients - among them one symptom provocation study in male veterans. METHODS To evaluate for the first time how oxytocin influences the intensity of provoked PTSD symptoms and, furthermore, cardiac control in female PTSD patients, we assessed their psychic and cardiac response to trauma-script exposure with and without oxytocin pretreatment in a double-blind randomized placebo-controlled study. We used a within-subject design to study 35 female PTSD patients who received oxytocin and placebo in a 2-week interval. Furthermore, we performed a small pilot study to get an idea of the relation of the stress-modulated endogenous oxytocin levels and heart rate - we correlated oxytocin serum levels with the heart rate of 10 healthy individuals before and after exposure to the Trier Social Stress Test (TSST). RESULTS Intranasal oxytocin treatment was followed by a reduction of provoked total PTSD symptoms, in particular of avoidance, and by an elevation in baseline and maximum heart rate together with a drop in the pre-ejection period, a marker for sympathetic cardiac control. Furthermore, we found a positive correlation between endogenous oxytocin levels and heart rate both before and after TSST challenge in healthy control subjects. CONCLUSIONS This study provides the first evidence that oxytocin treatment reduces the intensity of provoked PTSD symptoms in female PTSD patients. The small size of both samples and the heterogeneity of the patient sample restrict the generalizability of our findings. Future studies have to explore the gender dependency and the tolerability of the oxytocin-mediated increase in heart rate. This randomized controlled trial was retrospectively registered at the German Trials Register (DRKS00009399) on the 02 October 2015.
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Affiliation(s)
- M Sack
- Technische Universität München, Klinikum rechts der Isar, Department of Psychosomatic Medicine and Psychotherapy, Langerstr. 3, 81675, München, Germany
| | - D Spieler
- Technische Universität München, Klinikum rechts der Isar, Department of Psychosomatic Medicine and Psychotherapy, Langerstr. 3, 81675, München, Germany
| | - L Wizelman
- Technische Universität München, Klinikum rechts der Isar, Department of Psychosomatic Medicine and Psychotherapy, Langerstr. 3, 81675, München, Germany
| | - G Epple
- Technische Universität München, Klinikum rechts der Isar, Department of Psychosomatic Medicine and Psychotherapy, Langerstr. 3, 81675, München, Germany
| | - J Stich
- Max Planck Institute of Psychiatry, Department of Clinical Research, RG Molecular Psychotraumatology & Trauma Outpatient Clinic, Kraepelinstrasse 10, 80804, München, Germany
| | - M Zaba
- Max Planck Institute of Psychiatry, Department of Clinical Research, RG Molecular Psychotraumatology & Trauma Outpatient Clinic, Kraepelinstrasse 10, 80804, München, Germany
| | - U Schmidt
- Max Planck Institute of Psychiatry, Department of Clinical Research, RG Molecular Psychotraumatology & Trauma Outpatient Clinic, Kraepelinstrasse 10, 80804, München, Germany.
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Cherepanov SM, Yokoyama S, Mizuno A, Ichinose W, Lopatina O, Shabalova AA, Salmina AB, Yamamoto Y, Okamoto H, Shuto S, Higashida H. Structure-specific effects of lipidated oxytocin analogs on intracellular calcium levels, parental behavior, and oxytocin concentrations in the plasma and cerebrospinal fluid in mice. Pharmacol Res Perspect 2017; 5:e00290. [PMID: 28596839 PMCID: PMC5461640 DOI: 10.1002/prp2.290] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/25/2016] [Accepted: 11/29/2016] [Indexed: 12/27/2022] Open
Abstract
Oxytocin (OT) is a neuroendocrine nonapeptide that plays an important role in social memory and behavior. Nasal administration of OT has been shown to improve trust in healthy humans and social interaction in autistic subjects in some clinical trials. As a central nervous system (CNS) drug, however, OT has two unfavorable characteristics: OT is short‐acting and shows poor permeability across the blood–brain barrier, because it exists in charged form in the plasma and has short half‐life. To overcome these drawbacks, an analog with long‐lasting effects is required. We previously synthesized the analog, lipo‐oxytocin‐1 (LOT‐1), in which two palmitoyl groups are conjugated to the cysteine and tyrosine residues. In this study, we synthesized and evaluated the analogs lipo‐oxytocin‐2 (LOT‐2) and lipo‐oxytocin‐3 (LOT‐3), which feature the conjugation of one palmitoyl group at the cysteine and tyrosine residues, respectively. In human embryonic kidney‐293 cells overexpressing human OT receptors, these three LOTs demonstrated comparably weak effects on the elevation of intracellular free calcium concentrations after OT receptor activation, compared to the effects of OT. The three LOTs and OT exhibited different time‐dependent effects on recovery from impaired pup retrieval behavior in sires of CD38‐knockout mice. Sires treated with LOT‐1 showed the strongest effect, whereas others had no or little effects at 24 h after injection. These results indicated that LOTs have structure‐specific agonistic effects, and suggest that lipidation of OT might have therapeutic benefits for social impairment.
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Affiliation(s)
- Stanislav M Cherepanov
- Department of Basic Research on Social Recognition Research Center for Child Mental Development Kanazawa University Kanazawa 920-8640 Japan
| | - Shigeru Yokoyama
- Department of Basic Research on Social Recognition Research Center for Child Mental Development Kanazawa University Kanazawa 920-8640 Japan
| | - Akira Mizuno
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-12, Nishi-6, Kita-ku Sapporo 060-0812 Japan
| | - Wataru Ichinose
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-12, Nishi-6, Kita-ku Sapporo 060-0812 Japan
| | - Olga Lopatina
- Research Institute of Molecular Medicine & Pathobiochemistry Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky Krasnoyarsk 660022 Russia
| | - Anna A Shabalova
- Department of Basic Research on Social Recognition Research Center for Child Mental Development Kanazawa University Kanazawa 920-8640 Japan
| | - Alla B Salmina
- Department of Basic Research on Social Recognition Research Center for Child Mental Development Kanazawa University Kanazawa 920-8640 Japan.,Research Institute of Molecular Medicine & Pathobiochemistry Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky Krasnoyarsk 660022 Russia
| | - Yasuhiko Yamamoto
- Department of Biochemistry and Molecular Vascular BiologyGraduate School of Medical Sciences Kanazawa University Kanazawa 920-8640 Japan
| | - Hiroshi Okamoto
- Department of Biochemistry and Molecular Vascular BiologyGraduate School of Medical Sciences Kanazawa University Kanazawa 920-8640 Japan.,Department of Advanced Biological Sciences for Regeneration (Kotobiken Medical Laboratories) Tohoku University Graduate School of Medicine Sendai 980-8575 Japan
| | - Satoshi Shuto
- Faculty of Pharmaceutical Sciences Hokkaido University Kita-12, Nishi-6, Kita-ku Sapporo 060-0812 Japan.,Center for Research and Education on Drug Discovery Hokkaido University Kita-12, Nishi-6, Kita-ku Sapporo060-0812 Japan
| | - Haruhiro Higashida
- Department of Basic Research on Social Recognition Research Center for Child Mental Development Kanazawa University Kanazawa 920-8640 Japan
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85
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Ozer OF, Kacar O, Demirci O, Eren YS, Bilsel AS. PLASMA CONCENTRATIONS AND CORRELATIONS OF NATRIURETIC PEPTIDES AND OXYTOCIN DURING LABOR AND EARLY POSTPARTUM PERIOD. ACTA ENDOCRINOLOGICA-BUCHAREST 2017; 13:65-71. [PMID: 31149150 DOI: 10.4183/aeb.2017.65] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Context Natriuretic peptides (NP) and oxytocin (OT) play an important role in cardiovascular and hydro-electrolytic homeostasis. Changes in NP levels and their roles in cardiovascular adaptations in pregnancy and labor have not been clear. Objective The present study aimed to investigate the changes and correlations in plasma levels of atrial natriuretic peptide (ANP), C-type natriuretic peptide (CNP), B-type natriuretic peptide (BNP) and OT during labor and the postpartum period. Study design Blood samples were collected from 29 healthy pregnant women in the active phase of spontaneous labor, 15 minutes after delivery and 3 hours postpartum. Plasma levels of OT and the stable N-terminal fragments of NPs (NT-proANP, NT-proCNP, NT-proBNP) were measured using enzyme or electrochemiluminescence immunoassays. Results The plasma levels of NT-proANP and NT-proCNP significantly decrease 3 hours postpartum compared to the active phase of labor and to 15 minutes after delivery. The plasma NT-proBNP levels significantly higher after delivery and 3 hours postpartum compared to the active phase of labor. A significant correlation exists between OT and NT-proANP levels during the active phase of labor and 15 minutes after delivery. Conclusions The data show that during labor and postpartum, the plasma concentrations of the NPs change differently. Elevations in NT- proBNP after delivery suggest that BNP may be involved in postpartum adaptations. The correlations between OT and ANP levels indicate that OT may be partly responsible for the increased levels of ANP and may have a role in the modification of the cardiovascular system.
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Affiliation(s)
- O F Ozer
- Marmara Universty, Faculty of Medicine, Dept of Biochemistry, Istanbul, Turkey
| | - O Kacar
- TUBITAK Marmara Research Center, Genetic Engineering and Biotechnology Institute, Kocaeli, Turkey
| | - O Demirci
- Zeynep Kamil Women and Children's Diseases Education and Research Hospital, Istanbul, Turkey
| | - Y S Eren
- Zeynep Kamil Women and Children's Diseases Education and Research Hospital, Istanbul, Turkey
| | - A S Bilsel
- Marmara Universty, Faculty of Medicine, Dept of Biochemistry, Istanbul, Turkey
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86
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Abstract
A small, but powerful neuropeptide, oxytocin coordinates processes that are central to both human reproduction and human evolution. Also embedded in the evolution of the human nervous system are unique pathways necessary for modern human sociality and cognition. Oxytocin is necessary for facilitating the birth process, especially in light of anatomical restrictions imposed by upright human locomotion, which depends on a fixed pelvis. Oxytocin, by facilitating birth, allowed the development of a large cortex and a protective bony cranium. The complex human brain in turn permitted the continuing emergence of social sensitivity, complex thinking, and language. After birth is complete, oxytocin continues to support human development by providing direct nutrition, in the form of human milk, and emotional and intellectual support through high levels of maternal behavior and selective attachment. Oxytocin also encourages social sensitivity and reciprocal attunement, on the part of both the mother and child, which are necessary for human social behavior and for rearing an emotionally healthy human child. Oxytocin supports growth during development, resilience, and healing across the lifespan. Oxytocin dynamically moderates the autonomic nervous system, and effects of oxytocin on vagal pathways allowing high levels of oxygenation and digestion necessary to support adaptation in a complex environment. Finally, oxytocin has anti-oxidant and anti-inflammatory effects, helping to explain the pervasive adaptive consequences of social behavior for emotional and physical health.
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Affiliation(s)
- C Sue Carter
- Kinsey Institute, Indiana University Bloomington, Bloomington, IN, USA.
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87
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Regional c-Fos expression induced by peripheral oxytocin administration is prevented by the vasopressin 1A receptor antagonist SR49059. Brain Res Bull 2016; 127:208-218. [PMID: 27725169 DOI: 10.1016/j.brainresbull.2016.10.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 10/05/2016] [Accepted: 10/06/2016] [Indexed: 12/18/2022]
Abstract
Peripherally administered oxytocin induces a wide range of behavioural and physiological effects that are thought to be mediated by the oxytocin receptor (OTR). However, oxytocin also has considerable affinity for the vasopressin 1A receptor (V1AR), such that various oxytocinergic effects may in fact be mediated by the V1AR rather than the OTR. Here we used c-Fos immunohistochemistry to determine the extent to which the regional pattern of neuronal activation produced by peripheral oxytocin involves the V1AR. Male Wistar rats were administered oxytocin (1mg/kg, IP) alone, or following pre-treatment with the V1AR antagonist SR49059 (1mg/kg, IP), and were assessed for locomotor activity changes and for c-Fos expression across a number of brain regions. Oxytocin reduced the distance travelled by rats during a 70min test session, and this inhibitory behavioural effect was prevented by SR49059. Consistent with previous reports, oxytocin increased c-Fos expression in a number of brain regions. In several of these regions-the supraoptic and paraventricular (PVN) nuclei of the hypothalamus, locus coeruleus and nucleus of the solitary tract-the c-Fos response was prevented by SR49059 pre-treatment. Notably, SR49059 inhibited the c-Fos activation in oxytocin-synthesising magnocellular neurons in the PVN. However, c-Fos expression in the central amygdala to oxytocin was unaffected by SR49059. The current findings add to an increasing body of research suggesting that many of the functional effects of oxytocin may be V1AR mediated.
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88
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Oxytocin, a main breastfeeding hormone, prevents hypertension acquired in utero: A therapeutics preview. Biochim Biophys Acta Gen Subj 2016; 1861:3071-3084. [PMID: 27658996 DOI: 10.1016/j.bbagen.2016.09.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/29/2016] [Accepted: 09/16/2016] [Indexed: 02/07/2023]
Abstract
Hypertension is a major risk factor for ischemic heart disease and stroke, leading causes of morbidity and death worldwide. Intrauterine growth restriction (IUGR), caused by an excess of glucocorticoid exposure to the fetus, produces an imbalance in oxidative stress altering many biochemical and epigenetic gene transcription processes exposing the fetus and neonate to the 'thrifty' phenotype and pervasive polymorphisms appearance damaging health, cognitive, and behavioral processes in later life. OT is a major regulator of oxidative stress radicals that plays a major role in neonatal maturation of the central nervous system and many peripheral tissues expressing oxytocin/oxytocin-receptor (OT/OTR) system in the early postnatal period. OT and OTR are damaged by IUGR and early stress. This review highlights the fact that hypertension is likely to be a legacy of preterm birth due to IUGR and failure to meet nutritional needs in early infancy when fed formula instead of breastfeeding or human milk.
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89
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Chatterjee O, Patil K, Sahu A, Gopalakrishnan L, Mol P, Advani J, Mukherjee S, Christopher R, Prasad TSK. An overview of the oxytocin-oxytocin receptor signaling network. J Cell Commun Signal 2016; 10:355-360. [PMID: 27624619 DOI: 10.1007/s12079-016-0353-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 09/06/2016] [Indexed: 12/17/2022] Open
Abstract
Oxytocin, a nine amino acid long neuropeptide hormone, is synthesized in the hypothalamus and stored and released from the neural lobe of the pituitary gland. Although commonly known for its central role in the regulation of parturition and lactation, oxytocin signaling also plays a key role in modulating social behavior, evoking contentment, initiating maternal behavior, inducing trust, generosity and bonding in humans and animals. Oxytocin signaling can prove to be of great importance in therapeutics and drug targeting because of its diverse range of actions. However, a well annotated map of oxytocin signaling pathway is currently lacking in the publicly available pathway resources. Therefore, we systematically curated the available signaling information of oxytocin from published literature and collated the data to develop a more complete map. We cataloged 66 molecules belonging to oxytocin signaling pathway, which included 9 protein-protein interactions, 39 post-translational modifications, 14 protein translocation events and 22 activation/inhibition events. Further, Oxytocin signaling network data is made freely available to academic fraternity by integrating this into NetPath ( http://www.netpath.org /), a freely available human signaling pathway resource developed previously by our group.
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Affiliation(s)
- Oishi Chatterjee
- International Technology Park, Institute of Bioinformatics, Bangalore, 560066, India
| | - Krutika Patil
- Molecular Endocrinology, National Institute for Research in Reproductive Health, Parel, Mumbai, 400012, India
| | - Apeksha Sahu
- International Technology Park, Institute of Bioinformatics, Bangalore, 560066, India
- Bioinformatics Centre, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | | | - Praseeda Mol
- International Technology Park, Institute of Bioinformatics, Bangalore, 560066, India
| | - Jayshree Advani
- International Technology Park, Institute of Bioinformatics, Bangalore, 560066, India
- Manipal University, Madhav Nagar, Manipal, 576 104, India
| | - Srabani Mukherjee
- Molecular Endocrinology, National Institute for Research in Reproductive Health, Parel, Mumbai, 400012, India
| | - Rita Christopher
- Department of Neurochemistry, National Institute of Mental Health and Neuro Sciences, Bangalore, 560029, India
| | - T S Keshava Prasad
- International Technology Park, Institute of Bioinformatics, Bangalore, 560066, India.
- YU-IOB Center for Systems Biology and Molecular Medicine, Yenepoya University, Mangalore, 575018, India.
- NIMHANS-IOB Proteomics and Bioinformatics Laboratory, National Institute of Mental Health and Neuro Sciences, Bangalore, 560029, India.
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90
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Chronic Postnatal Stress Induces Depressive-like Behavior in Male Mice and Programs second-Hit Stress-Induced Gene Expression Patterns of OxtR and AvpR1a in Adulthood. Mol Neurobiol 2016; 54:4813-4819. [DOI: 10.1007/s12035-016-0043-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 08/05/2016] [Indexed: 10/21/2022]
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91
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Effects of lactation on postpartum blood pressure among women with gestational hypertension and preeclampsia. Am J Obstet Gynecol 2016; 215:241.e1-8. [PMID: 26945604 DOI: 10.1016/j.ajog.2016.02.046] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 02/18/2016] [Accepted: 02/24/2016] [Indexed: 01/16/2023]
Abstract
BACKGROUND Women with a history of hypertensive disorders of pregnancy are at an increased risk of hypertension and cardiovascular disease in later life. Lactation has been associated with a reduced risk of maternal hypertension, both in the postpartum period and later life. However, little is known about whether lactation is also cardioprotective in women with hypertensive disorders of pregnancy such as preeclampsia or gestational hypertension. OBJECTIVE This study aimed to characterize the relationship between lactation and postpartum blood pressure among women with preeclampsia and gestational hypertension. STUDY DESIGN Data were obtained from women who participated in the Prenatal Exposures and Preeclampsia Prevention study (n = 379; 66% African American; 85% overweight or obese). Women enrolled during pregnancy and attended a postpartum visit (on average, 9.1 months after delivery) during which data on lactation duration and blood pressure were collected. The significance of the associations between postpartum blood pressure and lactation among women who remained normotensive during pregnancy, developed gestational hypertension, or developed preeclampsia were assessed with an analysis of variance. Linear regression models were used to adjust for maternal age, race, education, prepregnancy weight, and time since delivery. RESULTS Gestational hypertension affected 42 subjects (11%) and preeclampsia affected 33 (9%). Lactation was reported by 217 (57%) with 78 (21%) reporting ≥ 6 months of lactation. Women who lactated were somewhat older, more educated, and had higher socioeconomic status. Among women who had gestational hypertension, lactation was associated with lower systolic blood pressure (P = .02) and diastolic blood pressure (P = .02). This association persisted after adjustment for age, race, education, prepregnancy weight, and time since delivery. However, for women who had preeclampsia and women who remained normotensive during pregnancy, lactation was not associated with postpartum blood pressure in either bivariate or multivariate analyses. CONCLUSION This study found that lactation is associated with lower postpartum blood pressure among overweight women who develop gestational hypertension but not among women who develop preeclampsia. Future studies are needed to explore the association of lactation and blood pressure in later life for women with hypertensive disorders of pregnancy.
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92
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Jankowski M, Broderick TL, Gutkowska J. Oxytocin and cardioprotection in diabetes and obesity. BMC Endocr Disord 2016; 16:34. [PMID: 27268060 PMCID: PMC4895973 DOI: 10.1186/s12902-016-0110-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 05/18/2016] [Indexed: 12/15/2022] Open
Abstract
Oxytocin (OT) emerges as a drug for the treatment of diabetes and obesity. The entire OT system is synthesized in the rat and human heart. The direct myocardial infusion with OT into an ischemic or failing heart has the potential to elicit a variety of cardioprotective effects. OT treatment attenuates cardiomyocyte (CMs) death induced by ischemia-reperfusion by activating pro-survival pathways within injured CMs in vivo and in isolated cells. OT treatment reduces cardiac apoptosis, fibrosis, and hypertrophy. The OT/OT receptor (OTR) system is downregulated in the db/db mouse model of type 2 diabetes which develops genetic diabetic cardiomyopathy (DC) similar to human disease. We have shown that chronic OT treatment prevents the development of DC in the db/db mouse. In addition, OT stimulates glucose uptake in both cardiac stem cells and CMs, and increases cell resistance to diabetic conditions. OT may help replace lost CMs by stimulating the in situ differentiation of cardiac stem cells into functional mature CMs. Lastly, adult stem cells amenable for transplantation such as MSCs could be preconditioned with OT ex vivo and implanted into the injured heart to aid in tissue regeneration through direct differentiation, secretion of protective and cardiomyogenic factors and/or their fusion with injured CMs.
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Affiliation(s)
- Marek Jankowski
- Cardiovascular Biochemistry Laboratory, CRCHUM (7-134), Tour Viger, 900 St-Denis St., Montreal, Quebec, H2X 0A9, Canada.
- Department of Medicine, Faculty of Medicine, University of Montreal, Montreal, Canada.
| | - Tom L Broderick
- Department of Physiology, Laboratory of Diabetes and Exercise Metabolism, Midwestern University, Agave Hall, office 217-B, 19555 North 59th Avenue, Glendale, AZ, 85308, USA.
| | - Jolanta Gutkowska
- Cardiovascular Biochemistry Laboratory, CRCHUM (7-134), Tour Viger, 900 St-Denis St., Montreal, Quebec, H2X 0A9, Canada
- Department of Medicine, Faculty of Medicine, University of Montreal, Montreal, Canada
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93
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Yee JR, Kenkel WM, Frijling JL, Dodhia S, Onishi KG, Tovar S, Saber MJ, Lewis GF, Liu W, Porges SW, Carter CS. Oxytocin promotes functional coupling between paraventricular nucleus and both sympathetic and parasympathetic cardioregulatory nuclei. Horm Behav 2016; 80:82-91. [PMID: 26836772 PMCID: PMC5768414 DOI: 10.1016/j.yhbeh.2016.01.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 12/29/2015] [Accepted: 01/29/2016] [Indexed: 02/07/2023]
Abstract
The neuropeptide oxytocin (OXT) facilitates prosocial behavior and selective sociality. In the context of stress, OXT also can down-regulate hypothalamic-pituitary-adrenal (HPA) axis activity, leading to consideration of OXT as a potential treatment for many socioaffective disorders. However, the mechanisms through which administration of exogenous OXT modulates social behavior in stressful environmental contexts are not fully understood. Here, we investigate the hypothesis that autonomic pathways are components of the mechanisms through which OXT aids the recruitment of social resources in stressful contexts that may elicit mobilized behavioral responses. Female prairie voles (Microtus ochrogaster) underwent a stressor (walking in shallow water) following pretreatment with intraperitoneal OXT (0.25mg/kg) or OXT antagonist (OXT-A, 20mg/kg), and were allowed to recover with or without their sibling cagemate. Administration of OXT resulted in elevated OXT concentrations in plasma, but did not dampen the HPA axis response to a stressor. However, OXT, but not OXT-A, pretreatment prevented the functional coupling, usually seen in the absence of OXT, between paraventricular nucleus (PVN) activity as measured by c-Fos immunoreactivity and HPA output (i.e. corticosterone release). Furthermore, OXT pretreatment resulted in functional coupling between PVN activity and brain regions regulating both sympathetic (i.e. rostral ventrolateral medulla) and parasympathetic (i.e. dorsal vagal complex and nucleus ambiguous) branches of the autonomic nervous system. These findings suggest that OXT increases central neural control of autonomic activity, rather than strictly dampening HPA axis activity, and provides a potential mechanism through which OXT may facilitate adaptive and context-dependent behavioral and physiological responses to stressors.
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Affiliation(s)
- Jason R Yee
- Northeastern University, United States; The Kinsey Institute at Indiana University, United States.
| | - William M Kenkel
- Northeastern University, United States; The Kinsey Institute at Indiana University, United States
| | | | | | | | | | | | - Gregory F Lewis
- The University of North Carolina at Chapel Hill, United States
| | | | - Stephen W Porges
- The Kinsey Institute at Indiana University, United States; The University of North Carolina at Chapel Hill, United States
| | - C Sue Carter
- The Kinsey Institute at Indiana University, United States
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94
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Gutkowska J, Aliou Y, Lavoie JL, Gaab K, Jankowski M, Broderick TL. Oxytocin decreases diurnal and nocturnal arterial blood pressure in the conscious unrestrained spontaneously hypertensive rat. ACTA ACUST UNITED AC 2016; 23:111-21. [PMID: 27020751 DOI: 10.1016/j.pathophys.2016.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/15/2016] [Accepted: 03/16/2016] [Indexed: 01/27/2023]
Abstract
In this study, we assessed the effects of oxytocin (OT) on mean arterial blood pressure (MAP), heart rate (HR), and locomotor activity (LA) in male spontaneous hypertensive rats (SHR) and Sprague-Dawley (SDR) controls using telemetry. OT was given by intravenous injections of 0.1, 0.2 or 0.4mg/kg to assess short term acute effects or by daily subcutaneous injections of 0.5 or 1.0mg/kg for 5 days. Compared to the saline infusion, (i) intravenous OT, regardless of concentration, increased MAP in SHR and SDR, (ii) HR increased, but was periodically lower in both strains with 0.2 or 0.4mg/kg, and (iii) no effects of OT on LA were observed. Subcutaneous injections demonstrated that (i) 1.0mg/kg for 5days lowered diurnal MAP and HR in SDR and SHR, persisting for 6 days, (ii) 1.0mg/kg decreased nocturnal HR in SDR, (iii) 0.5 and 1.0mg/kg decreased MAP with minor effects on HR in the SHR, and lastly (iv) OT decreased LA mainly during the diurnal cycle in both strains. Our main results show that OT induces significant beneficial effects on cardiovascular function over several diurnal and nocturnal cycles in the SHR, with the most prominent effect being a robust decrease in MAP.
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Affiliation(s)
- Jolanta Gutkowska
- Cardiovascular Biochemistry Laboratory, Centre de Recherché du Centre Hospitalier de l 'Université de Montréal, Montréal, Québec, Canada; Département de Medecine, Université de Montréal, Montreal, Quebec, Canada
| | - Yessoufou Aliou
- Cardiovascular Biochemistry Laboratory, Centre de Recherché du Centre Hospitalier de l 'Université de Montréal, Montréal, Québec, Canada; Département de Pharmacologie, Université de Montréal, Montreal, Quebec, Canada
| | - Julie L Lavoie
- Cardiovascular Biochemistry Laboratory, Centre de Recherché du Centre Hospitalier de l 'Université de Montréal, Montréal, Québec, Canada; Department de Kinesiologie, Université de Montréal, Montreal, Quebec, Canada
| | - Katie Gaab
- Department of Physiology, Laboratory of Diabetes and Exercise Metabolism, Midwestern University, Glendale, AZ, USA
| | - Marek Jankowski
- Cardiovascular Biochemistry Laboratory, Centre de Recherché du Centre Hospitalier de l 'Université de Montréal, Montréal, Québec, Canada; Département de Medecine, Université de Montréal, Montreal, Quebec, Canada
| | - Tom L Broderick
- Department of Physiology, Laboratory of Diabetes and Exercise Metabolism, Midwestern University, Glendale, AZ, USA.
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95
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Doom JR, Doyle CM, Gunnar MR. Social stress buffering by friends in childhood and adolescence: Effects on HPA and oxytocin activity. Soc Neurosci 2016; 12:8-21. [PMID: 26899419 DOI: 10.1080/17470919.2016.1149095] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Previous research has demonstrated that before puberty, parents are able to buffer, and often completely block, cortisol responses to social evaluative stressors (e.g., Trier Social Stress Test; TSST). However, after puberty, parents no longer provide a powerful buffer of the HPA axis from a social-evaluative stressor. The current study investigates whether friends can buffer the HPA axis in both children and adolescents compared to parents and whether similar stress-ameliorating patterns can also be observed in oxytocin activity. A total of 109 participants (54 children aged 9-10 and 55 adolescents aged 15-16; half of each sex) completed the TSST and were randomly assigned to prepare for their speech with their parent or friend for 5 minutes beforehand. Salivary cortisol and urinary oxytocin were measured before and after the TSST. For children, cortisol responses were comparable regardless of who helped the child prepare the speech. For adolescents, however, friends actually amplified the cortisol response compared to parents. In addition, adolescents produced less oxytocin than children, as did males compared to females. Notably, for boys, oxytocin levels decreased across the session if participants prepared with a friend rather than their parent. The mean change was in the same direction but not significant for girls. These results indicate that friends do not take over the social buffering role by age 15-16, which may inform interventions in at-risk children and adolescents.
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Affiliation(s)
- Jenalee R Doom
- a Institute of Child Development , University of Minnesota , Minneapolis , MN , USA
| | - Colleen M Doyle
- a Institute of Child Development , University of Minnesota , Minneapolis , MN , USA
| | - Megan R Gunnar
- a Institute of Child Development , University of Minnesota , Minneapolis , MN , USA
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96
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Abstract
Despite widespread reports that intranasal application of oxytocin has a variety of behavioral effects, very little of the huge amounts applied intranasally appears to reach the cerebrospinal fluid. However, peripheral concentrations are increased to supraphysiologic levels, with likely effects on diverse targets including the gastrointestinal tract, heart, and reproductive tract. The wish to believe in the effectiveness of intranasal oxytocin appears to be widespread and needs to be guarded against with scepticism and rigor. Preregistering trials, declaring primary and secondary outcomes in advance, specifying the statistical methods to be applied, and making all data openly available should minimize problems of publication bias and questionable post hoc analyses. Effects of intranasal oxytocin also need proper dose-response studies, and such studies need to include control subjects for peripheral effects, by administering oxytocin peripherally and by blocking peripheral actions with antagonists. Reports in the literature of oxytocin measurements include many that have been made with discredited methodology. Claims that peripheral measurements of oxytocin reflect central release are questionable at best.
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97
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Feeding response following central administration of mesotocin and arginine-vasotocin receptor agonists in chicks (Gallus gallus). Physiol Behav 2016; 153:149-54. [DOI: 10.1016/j.physbeh.2015.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 11/01/2015] [Accepted: 11/02/2015] [Indexed: 11/23/2022]
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98
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Vu MQ, Der Sarkissian S, Borie M, Bessette PO, Noiseux N. Optimization of Mesenchymal Stem Cells to Increase Their Therapeutic Potential. Methods Mol Biol 2016; 1416:275-88. [PMID: 27236678 DOI: 10.1007/978-1-4939-3584-0_16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The heart which has limited renewal and regenerative capacity is a prime target for cellular therapy. Stem cell transplantation has emerged as a promising therapeutic strategy to improve healing of the ischemic heart, repopulate the injured myocardium, and restore cardiac function. However, clinical usefulness is impacted by the quality and quantity of delivered cells, the suboptimal manipulations prior to transplantation, and the general poor viability of the cells transferred particularly to an ischemic microenvironment. Focus is now on developing new ways to enhance stem cell renewal and survival capacity before transplant. This can be done by physical, chemical, pharmacological, or genetic manipulation of cells followed by accurate evaluation of conditioning methods by validated tests.This chapter covers the proper handling of mesenchymal stem cells (human and rat lines) and methodologies to evaluate efficacy and the translational potential of conditioning methods. Specifically, we will cover stem cell culture methods, preconditioning protocols, viability assessment in hypoxic and oxidative challenges as encountered in an ischemic microenvironment, and the proliferative capacity of cells.
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Affiliation(s)
- Minh Quan Vu
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, Canada.,Faculté de Médecine, Université de Montréal, Montreal, QC, Canada
| | - Shant Der Sarkissian
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, Canada.,Faculté de Médecine, Université de Montréal, Montreal, QC, Canada
| | - Melanie Borie
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, Canada
| | | | - Nicolas Noiseux
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, Canada. .,Faculté de Médecine, Université de Montréal, Montreal, QC, Canada. .,Division of Cardiac Surgery, Centre Hospitalier de l'Université de Montréal (CHUM), 3840 Saint-Urbain Street, Montreal, QC, Canada, H2W1T8.
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99
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Lin HY, Lee DC, Wang HD, Chi YH, Chiu IM. Activation of FGF1B Promoter and FGF1 Are Involved in Cardiogenesis Through the Signaling of PKC, but Not MAPK. Stem Cells Dev 2015; 24:2853-63. [DOI: 10.1089/scd.2015.0157] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hung-Yu Lin
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
- Graduate Program of Biotechnology in Medicine, Department of Life Science, Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Don-Ching Lee
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Horng-Dar Wang
- Graduate Program of Biotechnology in Medicine, Department of Life Science, Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Ya-Hui Chi
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
- Graduate Program of Biotechnology in Medicine, Department of Life Science, Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
| | - Ing-Ming Chiu
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
- Graduate Program of Biotechnology in Medicine, Department of Life Science, Institute of Biotechnology, National Tsing Hua University, Hsinchu, Taiwan
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
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100
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Wade M, Hoffmann TJ, Jenkins JM. Gene-environment interaction between the oxytocin receptor (OXTR) gene and parenting behaviour on children's theory of mind. Soc Cogn Affect Neurosci 2015; 10:1749-57. [PMID: 25977357 PMCID: PMC4666114 DOI: 10.1093/scan/nsv064] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 04/27/2015] [Accepted: 05/08/2015] [Indexed: 12/13/2022] Open
Abstract
Theory of mind (ToM) is the ability to interpret and understand human behaviour by representing the mental states of others. Like many human capacities, ToM is thought to develop through both complex biological and socialization mechanisms. However, no study has examined the joint effect of genetic and environmental influences on ToM. This study examined how variability in the oxytocin receptor gene (OXTR) and parenting behavior--two widely studied factors in ToM development-interacted to predict ToM in pre-school-aged children. Participants were 301 children who were part of an ongoing longitudinal birth cohort study. ToM was assessed at age 4.5 using a previously validated scale. Parenting was assessed through observations of mothers' cognitively sensitive behaviours. Using a family-based association design, it was suggestive that a particular variant (rs11131149) interacted with maternal cognitive sensitivity on children's ToM (P = 0.019). More copies of the major allele were associated with higher ToM as a function of increasing cognitive sensitivity. A sizeable 26% of the variability in ToM was accounted for by this interaction. This study provides the first empirical evidence of gene-environment interactions on ToM, supporting the notion that genetic factors may be modulated by potent environmental influences early in development.
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Affiliation(s)
- Mark Wade
- Department of Applied Psychology and Human Development, University of Toronto, 252 Bloor Street West, Toronto, Ontario, Canada M5S 1V6 and
| | - Thomas J Hoffmann
- Department of Epidemiology and Biostatistics, Institute for Human Genetics, University of California at San Francisco, UCSF Box 0794, 513 Parnassus Avenue, S965, San Francisco, CA 94143-0794, USA
| | - Jennifer M Jenkins
- Department of Applied Psychology and Human Development, University of Toronto, 252 Bloor Street West, Toronto, Ontario, Canada M5S 1V6 and
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