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https://www.readbyqxmd.com/read/28526450/the-association-of-single-nucleotide-polymorphisms-in-the-oxytocin-receptor-and-g-protein-coupled-receptor-kinase-6-grk6-genes-with-oxytocin-dosing-requirements-and-labor-outcomes
#1
Chad A Grotegut, Emily Ngan, Melanie E Garrett, Marie Lynn Miranda, Allison E Ashley-Koch, Geeta K Swamy
BACKGROUND: Oxytocin is a potent uterotonic agent that is widely used for induction and augmentation of labor. Oxytocin has a narrow therapeutic index and the optimal dosing for any individual woman varies widely. OBJECTIVE: The objective of this study was to determine if genetic variation in the oxytocin receptor (OXTR) or in the gene encoding G protein-coupled receptor kinase 6 (GRK6), which regulates desensitization of the OXTR, could explain variation in oxytocin dosing and labor outcomes among women being induced near term...
May 16, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28524009/a-novel-polymorphism-in-the-oxytocin-receptor-encoding-gene-oxtr-affects-milk-fatty-acid-composition-in-italian-mediterranean-river-buffalo
#2
Gianfranco Cosenza, Nicolò P P Macciotta, Anna Nudda, Angelo Coletta, Luigi Ramunno, Alfredo Pauciullo
The oxytocin receptor, also known as OXTR, is a protein which functions as receptor for the hormone and neurotransmitter oxytocin and the complex oxytocin-oxytocin receptor plays an important role in the uterus during calving. A characterisation of the river buffalo OXTR gene, amino acid sequences and phylogenetic analysis is presented. The DNA regions of the OXTR gene spanning exons 1, 2 and 3 of ten Mediterranean river buffalo DNA samples were analysed and 7 single nucleotide polymorphisms were found. We focused on the g...
May 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28511728/birth-weight-interacts-with-a-functional-variant-of-the-oxytocin-receptor-gene-oxtr-to-predict-executive-functioning-in-children
#3
Mark Wade, Heather Prime, Thomas J Hoffmann, Louis A Schmidt, Thomas G O'Connor, Jennifer M Jenkins
Genetic variation in the oxytocin receptor gene (OXTR) is associated with several psychiatric conditions characterized by deficits in executive functioning (EF). A specific OXTR variant, rs2254298, has previously been associated with brain functioning in regions implicated in EF. Moreover, birth weight variation across the entire range is associated with individual differences in cortical structure and function that underlie EF. This is the first study to examine the main and interactive effect between rs2254298 and birth weight on EF in children...
May 17, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28506310/unexpected-evolutionarily-conserved-rapid-effects-of-viral-infection-on-oxytocin-receptor-and-tgf-%C3%AE-psmad3
#4
Yutong Liu, Irina Conboy
BACKGROUND: shRNA lentiviral vectors are extensively used for gene knockdowns in mammalian cells, and non-target shRNAs typically are considered the proper experimental control for general changes caused by RNAi. However, the effects of non-target lentivirus controls on the modulation of cell signaling pathways remain largely unknown. In this study, we evaluated the effect of control lentiviral transduction on oxytocin receptor (OXTR) expression through the ERK/MAPK pathway in mouse and human skeletal muscle cells, on myogenic activity, and in vivo on mouse muscle regeneration...
May 15, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28499211/oxytocin-receptor-and-g-protein-polymorphisms-in-patients-with-depression-and-separation-anxiety
#5
Barbara Costa, Stefano Pini, David S Baldwin, Derrick Silove, Vijaya Manicavasagar, Marianna Abelli, Fabio Coppedè, Claudia Martini
BACKGROUND: The impact of combined variants of Oxytocin Receptor (OXTR) and G protein β3 subunit genes was investigated in relation to retrospective reports of childhood as well as contemporary adult separation anxiety (SA), based on evidence of a β/γ dimer-mediated signaling for OXTR. METHODS: A case-control association study (225 healthy adults and 188 outpatients with depression) was performed to establish Risk-Combined Genotype (RCG) of the studied variants (OXTR rs53576 and the functional Gβ3 subunit rs5443)...
March 27, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28487952/expression-of-reproductive-hormone-receptors-and-contraction%C3%A2-associated-genes-in-porcine-uterus-during-the-estrous-cycle
#6
Sung-Min An, Sun Suk Kim, Jun Kim, Mee-Na Park, Jae-Eon Lee, Seong Keun Cho, Kyu-Sup Lee, Beum-Soo An
Contraction of uterus tissue frequently occurs throughout the estrous cycle and is regulated by several endogenous factors, including estradiol, progesterone, luteinizing hormone, follicle‑stimulating hormone, oxytocin (OXT) and contraction‑associated proteins (CAPs). Contraction activity of uterus tissue according to the estrous cycle is important, due to the fact that it is directly associated with balanced implantation and stable pregnancy. However, few studies have examined the mechanism of uterus contraction activity in a porcine model...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28484366/serum-oxytocin-levels-and-an-oxytocin-receptor-gene-polymorphism-rs2254298-indicate-social-deficits-in-children-and-adolescents-with-autism-spectrum-disorders
#7
Shuhan Yang, Xiaopeng Dong, Xuan Guo, Yu Han, Hanbing Song, Lei Gao, Wei Dai, Yuanyuan Su, Xin Zhang
The neuropeptide oxytocin (OT) and its receptor (OXTR) have been predicted to be involved in the regulation of social functioning in autism spectrum disorders (ASD). Objective of the study was to investigate serum OT levels and the OXTR rs2254298 polymorphism in Chinese Han children and adolescents with ASD as well as to identify their social deficits relevant to the oxytocinergic system. We tested serum OT levels using ELISA in 55 ASD subjects and 110 typically developing (TD) controls as well as genotyped the OXTR rs2254298 polymorphism using PCR-RFLP in 100 ASD subjects and 232 TD controls...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28478728/variation-in-the-oxytocin-receptor-gene-is-associated-with-social-cognition-and-adhd
#8
Tuğba Kalyoncu, Burcu Özbaran, Sezen Köse, Hüseyin Onay
OBJECTIVE: Children with ADHD show substantial deficits in social cognitive abilities. Oxytocin, mediated through its specific receptor (OXTR), is involved in the regulation of social behavior and social cognition. METHOD: The entire coding sequence of the human OXT and OXTR genes were sequenced to identify mutations and single nucleotide polymorphisms (SNPs) in 151 children with ADHD (ADHD-combined, n = 51; inattentive subtype, n = 50; ADHD-C plus conduct disorder [CD], n = 50; 11-18 years) and 100 healthy controls...
May 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28473259/the-central-effects-of-alpha-melanocyte-stimulating-hormone-%C3%AE-msh-in-chicks-involve-changes-in-gene-expression-of-neuropeptide-y-and-other-factors-in-distinct-hypothalamic-nuclei
#9
Meghan S Delp, Mark A Cline, Elizabeth R Gilbert
Alpha-melanocyte stimulating hormone (α-MSH) is a satiety-inducing factor in birds and mammals although central mechanisms mediating its effects on appetite in birds are poorly understood. Thus, the objective of the present study was to determine effects of centrally-injected α-MSH on c-Fos and gene expression in chick appetite-associated hypothalamic nuclei. At 4days post-hatch, 3h-fasted chicks were intracerebroventricularly (ICV) injected with 0 (vehicle) or 0.12nmol α-MSH and 1h later, hypothalamus samples were collected for measuring c-Fos immunoreactivity and mRNA abundance of appetite-associated factors in hypothalamic nuclei...
May 1, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28472899/rejection-sensitivity-and-multiple-group-memberships-the-moderating-role-of-an-oxytocin-receptor-gene-polymorphism
#10
Robbie Woods, Marc Bedard, Robyn Jane McQuaid, Kim Matheson, Hymie Anisman
Rejection sensitivity is a cognitive-affective processing disposition that has been linked to interpersonal difficulties. In this regard, the neuropeptide hormone, oxytocin, is thought to underlie social cognitions and behaviors that promote social affiliation. A single nucleotide polymorphism (SNP) on the oxytocin receptor gene (OXTR), in which guanine (G) is substituted for adenine (A), has been associated with less support-seeking behaviors. In the current study, among 376 undergraduate students, it was shown that the relationship between rejection sensitivity and depressive symptoms was mediated by multiple group memberships...
May 4, 2017: Social Neuroscience
https://www.readbyqxmd.com/read/28471218/change-in-parenting-change-in-student-teacher-relationships-and-oxytocin-receptor-gene-oxtr-testing-a-gene-%C3%A3-environment-g%C3%A3-e-hypothesis-in-two-samples
#11
Beate Wold Hygen, Jay Belsky, Zhi Li, Frode Stenseng, Ismail Cuneyt Güzey, Lars Wichstrøm
Prior research suggests that parenting affects children's relationships, including those with teachers, although there is variation across individuals in such effects. Given evidence suggesting that oxytocin may be particularly important for the quality of social relationships, we tested the hypotheses (a) that change in parenting from 4 to 6 years of age influences and predicts change in the student-teacher relationship from 6 to 8 years of age and (b) that this effect is moderated by a polymorphism related to the child's oxytocin receptor gene (OXTR), rs53576...
May 4, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28454334/taxotere-induced-elevated-expression-of-il8-in-carcinoma-associated-fibroblasts-of-breast-invasive-ductal-cancer
#12
Yingliang Li, Guohua Rong, Hua Kang
Breast cancer is the most common malignant tumor in women worldwide, and accounts for an estimated 29% of new cases and 15% of cancer-associated mortalities each year. Invasive ductal carcinoma represents 70-80% of all breast cancer cases, which are responsible for the majority of breast cancer fatalities. Though great progress has been made in understanding the tumorigenesis and development of breast cancer, problems surrounding treatment persist. It was previously reported that carcinoma-associated fibroblasts (CAFs) may be closely associated with chemotherapy resistance...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28443051/social-behavior-of-pet-dogs-is-associated-with-peripheral-oxtr-methylation
#13
Giulia Cimarelli, Zsófia Virányi, Borbála Turcsán, Zsolt Rónai, Mária Sasvári-Székely, Zsófia Bánlaki
Oxytocin is a key modulator of emotional processing and social cognitive function. In line with this, polymorphisms of genes involved in oxytocin signaling, like the oxytocin receptor (OXTR) gene, are known to influence social behavior in various species. However, to date, no study has investigated environmental factors possibly influencing the epigenetic variation of the OXTR gene and its behavioral effects in dogs. Pet dogs form individualized and strong relationships with their owners who are central figures in the social environment of their dogs and therefore might influence the methylation levels of their OXTR gene...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28442360/the-oxtr-gene-implicit-learning-and-social-processing-does-empathy-evolve-from-perceptual-skills-for-details
#14
Martin Melchers, Christian Montag, Sebastian Markett, Nawael Niazy, Johanna Groß-Bölting, Jelena Zimmermann, Martin Reuter
Oxytocin is an important messenger in the brain that has been linked to a variety of social functions in pharmacological studies. Besides, functional genetic variations on the oxytocin receptor gene have been repeatedly associated with social processing and functioning. Despite this knowledge, there are very few studies investigating the mechanisms that may explain the link between oxytocin and social functions. In the endeavor to fill this gap in the literature, the current study searches for associations between the prominent rs2268498 polymorphism on the oxytocin receptor gene and participants' ability to perceive and store implicit social information, which is a fundamental function in social information processing...
April 22, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28418398/intranasal-oxytocin-enhances-intrinsic-corticostriatal-functional-connectivity-in-women
#15
R A I Bethlehem, M V Lombardo, M-C Lai, B Auyeung, S K Crockford, J Deakin, S Soubramanian, A Sule, P Kundu, V Voon, S Baron-Cohen
Oxytocin may influence various human behaviors and the connectivity across subcortical and cortical networks. Previous oxytocin studies are male biased and often constrained by task-based inferences. Here, we investigate the impact of oxytocin on resting-state connectivity between subcortical and cortical networks in women. We collected resting-state functional magnetic resonance imaging (fMRI) data on 26 typically developing women 40 min following intranasal oxytocin administration using a double-blind placebo-controlled crossover design...
April 18, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28413470/identification-of-genes-associated-with-the-effect-of-inflammation-on-the-neurotransmission-of-vascular-smooth-muscle-cell
#16
Shujie Gan, Shenlong Qiu, Yiwen Feng, Yanping Zhang, Qin Qian, Zhong Wan, Jingdong Tang
Vascular smooth muscle cell (VSMC) accumulation and hypertrophy are common in vascular disorders, and inflammation has a crucial role in the development of these diseases. To investigate the effect of inflammation on the neurotransmission of VSMC, bioinformatic analysis was performed, following next generation sequencing. Genes of lipopolysaccharide (LPS)-treated A7r5 cells and phosphate-buffered saline (PBS)-treated A7r5 cells were sequenced via next generation sequencing, and each assay was repeated three times...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28377734/how-oxytocin-receptor-oxtr-single-nucleotide-polymorphisms-act-on-prosociality-the-mediation-role-of-moral-evaluation
#17
Siyuan Shang, Nan Wu, Yanjie Su
Prosociality is related to numerous positive outcomes, and mechanisms underlying individual differences in prosociality have been widely discussed. Recently, research has found converging evidence on the influence of the oxytocin receptor (OXTR) gene on prosociality. Meanwhile, moral reasoning, a key precursor for social behavior, has also been associated with variability in OXTR gene, thus the relationship between OXTR and prosociality is assumed to be mediated by moral evaluation. The current study examines the relationship in question, and includes gender as a potential moderator...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28353027/the-association-of-childhood-maltreatment-with-depression-and-anxiety-is-not-moderated-by-the-oxytocin-receptor-gene
#18
Marieke S Tollenaar, Marc L Molendijk, Brenda W J H Penninx, Yuri Milaneschi, Niki Antypa
BACKGROUND: The oxytocin receptor (OXTR) gene may be involved in resilience or vulnerability towards stress, and hence in the development of stress-related disorders. There are indications that OXTR single nucleotide polymorphisms (SNPs) interact with early life stressors in predicting levels of depression and anxiety. To replicate and extend these findings, we examined whether three literature-based OXTR SNPs (rs2254298, rs53576, rs2268498) interact with childhood maltreatment in the development of clinically diagnosed depression and anxiety disorders...
March 28, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28343138/revisiting-the-impact-of-oxtr-rs53576-on-empathy-a-population-based-study-and-a-meta-analysis
#19
Pingyuan Gong, Huiyong Fan, Jinting Liu, Xing Yang, Kejin Zhang, Xiaolin Zhou
Oxytocin in the brain is related to empathy, which refers to the ability to understand and share others' internal states or responses. Previous studies have investigated the impact of OXTR rs53576, the most intensively examined polymorphism in the oxytocin receptor (OXTR) gene, on individual differences in empathy. However, these studies produced inconsistent results. In the current study, we reexamined the association of OXTR rs53576 with empathy in a relatively large population (N=1830) and also evaluated the association by a comprehensive meta-analysis (N=6631, 13 independent samples)...
June 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28341538/the-differential-impact-of-oxytocin-receptor-gene-in-violence-exposed-boys-and-girls
#20
Livia C Merrill, Christopher W Jones, Stacy S Drury, Katherine P Theall
Childhood violence exposure is a prevalent public health problem. Understanding the lasting impact of violence requires an enhanced appreciation for the complex effects of violence across behavioral, physiologic, and molecular outcomes. This subject matched, cross-sectional study of 80 children explored the impact of violence exposure across behavioral, physiologic, and cellular outcomes. Externalizing behavior, diurnal cortisol rhythm, and telomere length (TL) were examined in a community recruited cohort of Black youth...
March 22, 2017: International Journal of Developmental Neuroscience
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