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https://www.readbyqxmd.com/read/29101603/hypothalamic-pituitary-adrenal-axis-variants-and-childhood-trauma-influence-anxiety-sensitivity-in-south-african-adolescents
#1
Jacqueline S Womersley, Lindi I Martin, Lize van der Merwe, Soraya Seedat, Sian M J Hemmings
Anxiety sensitivity (AS) is characterised by the fear of anxiety-related symptoms and is a risk factor for the development of anxiety-related disorders. We examined whether genetic variation in three stress response genes, CRHR1, NR3C1, and FKBP5, interact with childhood trauma (CT) to predict AS in South African adolescents. Xhosa (n = 634) and Coloured (n = 317) students completed self-report measures of AS and CT, and a total of eighteen polymorphisms within CRHR1, NR3C1, and FKBP5 were genotyped. Differences in AS based on genetic variation and CT were analysed within population and gender groups using multiple linear regression...
November 4, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29100496/gene-expression-profiling-of-upregulated-mrnas-in-granulosa-cells-of-bovine-ovulatory-follicles-following-stimulation-with-hcg
#2
Jacques G Lussier, Mame N Diouf, Valérie Lévesque, Jean Sirois, Kalidou Ndiaye
BACKGROUND: Ovulation and luteinization of follicles are complex biological processes initiated by the preovulatory luteinizing hormone surge. The objective of this study was to identify genes that are differentially expressed in bovine granulosa cells (GC) of ovulatory follicles. METHODS: Granulosa cells were collected during the first follicular wave of the bovine estrous cycle from dominant follicles (DF) and from ovulatory follicles (OF) obtained 24 h following injection of human chorionic gonadotropin (hCG)...
November 3, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29084233/genetically-defined-elevated-homocysteine-levels-do-not-result-in-widespread-changes-of-dna-methylation-in-leukocytes
#3
Pooja R Mandaviya, Roby Joehanes, Dylan Aïssi, Brigitte Kühnel, Riccardo E Marioni, Vinh Truong, Lisette Stolk, Marian Beekman, Marc Jan Bonder, Lude Franke, Christian Gieger, Tianxiao Huan, M Arfan Ikram, Sonja Kunze, Liming Liang, Jan Lindemans, Chunyu Liu, Allan F McRae, Michael M Mendelson, Martina Müller-Nurasyid, Annette Peters, P Eline Slagboom, John M Starr, David-Alexandre Trégouët, André G Uitterlinden, Marleen M J van Greevenbroek, Diana van Heemst, Maarten van Iterson, Philip S Wells, Chen Yao, Ian J Deary, France Gagnon, Bastiaan T Heijmans, Daniel Levy, Pierre-Emmanuel Morange, Melanie Waldenberger, Sandra G Heil, Joyce B J van Meurs
BACKGROUND: DNA methylation is affected by the activities of the key enzymes and intermediate metabolites of the one-carbon pathway, one of which involves homocysteine. We investigated the effect of the well-known genetic variant associated with mildly elevated homocysteine: MTHFR 677C>T independently and in combination with other homocysteine-associated variants, on genome-wide leukocyte DNA-methylation. METHODS: Methylation levels were assessed using Illumina 450k arrays on 9,894 individuals of European ancestry from 12 cohort studies...
2017: PloS One
https://www.readbyqxmd.com/read/29075152/lps-regulates-the-expression-of-glucocorticoid-receptor-%C3%AE-and-%C3%AE-isoforms-and-induces-a-selective-glucocorticoid-resistance-in-vitro
#4
Maria Luisa Molina, Julia Guerrero, John A Cidlowski, Héctor Gatica, Annelise Goecke
BACKGROUND: This study was aimed to evaluate the effect of LPS in glucocorticoid receptor (GR) isoforms expression on different cell lines and PBMC from healthy donors in vitro and glucocorticoid sensitivity of PBMC in vitro. METHODS: U-2 OS cell lines expressing GR isoforms, different cell lines (CEM, RAJI, K562 and HeLa) or PBMC from healthy donors, were cultured or not with LPS. The expression of GRα and GRβ was evaluated by Western blot. Glucocorticoid sensitivity was evaluated in PBMC treated with LPS, testing genes which are transactivated or transrepressed by glucocorticoid...
2017: Journal of Inflammation
https://www.readbyqxmd.com/read/29074884/evidence-for-stress-like-alterations-in-the-hpa-axis-in-women-taking-oral-contraceptives
#5
Johannes Hertel, Johanna König, Georg Homuth, Sandra Van der Auwera, Katharina Wittfeld, Maik Pietzner, Tim Kacprowski, Liliane Pfeiffer, Anja Kretschmer, Melanie Waldenberger, Gabi Kastenmüller, Anna Artati, Karsten Suhre, Jerzy Adamski, Sönke Langner, Uwe Völker, Henry Völzke, Matthias Nauck, Nele Friedrich, Hans Joergen Grabe
Using oral contraceptives has been implicated in the aetiology of stress-related disorders like depression. Here, we followed the hypothesis that oral contraceptives deregulate the HPA-axis by elevating circulating cortisol levels. We report for a sample of 233 pre-menopausal women increased circulating cortisol levels in those using oral contraceptives. For women taking oral contraceptives, we observed alterations in circulating phospholipid levels and elevated triglycerides and found evidence for increased glucocorticoid signalling as the transcript levels of the glucocorticoid-regulated genes DDIT4 and FKBP5 were increased in whole blood...
October 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29056292/epigenetics-and-gene-expression-profile-in-first-episode-psychosis-the-role-of-childhood-trauma
#6
REVIEW
Simona Tomassi, Sarah Tosato
Childhood Trauma (CT) mediation of the epigenome and its impact on gene expression profile could provide a mechanism for the gene-environment interaction underling psychosis. We reviewed the evidence concerning epigenetic and gene expression modifications associated with CT in both First-Episode Psychosis (FEP) and healthy subjects. In order to explore the relative role of psychosis itself in determining these modifications, evidence about FEP and epigenetics/gene expression was also summarized. We performed a systematic search on PubMed, last updated in December 2016...
October 19, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29052817/androgen-signaling-in-esophageal-adenocarcinoma-cell-lines-in-vitro
#7
Helen M Palethorpe, Paul A Drew, Eric Smith
BACKGROUND: We showed previously that nuclear localization of the androgen receptor (AR) and expression of the androgen-responsive gene FK506-binding protein 5 (FKBP5) in esophageal adenocarcinoma (EAC) tissues were associated with decreased patient survival, suggesting a role for androgens in this cancer. AIM: To investigate the effect of the AR ligand 5α-dihydrotestosterone (DHT) on AR-expressing EAC cell lines in vitro. METHODS AND RESULTS: In tissue resection specimens from EAC patients, FKBP5 expression was positively associated with proliferation as measured by Ki-67 expression...
December 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29021832/pharmacogenomics-in-the-treatment-of-mood-disorders-strategies-and-opportunities-for-personalized-psychiatry
#8
REVIEW
Azmeraw T Amare, Klaus Oliver Schubert, Bernhard T Baune
Personalized medicine (personalized psychiatry in a specific setting) is a new model towards individualized care, in which knowledge from genomics and other omic pillars (microbiome, epigenomes, proteome, and metabolome) will be combined with clinical data to guide efforts to new drug development and targeted prescription of the existing treatment options. In this review, we summarize pharmacogenomic studies in mood disorders that may lay the foundation towards personalized psychiatry. In addition, we have discussed the possible strategies to integrate data from omic pillars as a future path to personalized psychiatry...
September 2017: EPMA Journal
https://www.readbyqxmd.com/read/28992850/association-of-single-nucleotide-polymorphism-in-the-fkbp5-gene-with-response-to-steroids-in-pediatric-patients-with-primary-nephrotic-syndrome%C3%A2
#9
Ni Du, Fang Yang, Liangzhi Li, Xiaoxiao Liu, Liangzhong Sun, Sui Zhang, Xianhong He, Yuewu Tang, Jihong Shi, Chunqiu Liu, Xianxiang Zhang
AIM: This study aimed to assess the association of single-nucleotide polymorphism (SNP) of FKBP5 with response to steroids in children with primary nephrotic syndrome (NS). MATERIALS AND METHODS: A total of 66 primary NS patients (cases) and 68 healthy individuals (controls) were enrolled in this study. The FKBP5 polymorphism rs4713916 (T/C) was analyzed by polymerase chain reaction (PCR) and sequencing after amplification of regions that potentially contain the SNP...
October 10, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28989100/pleiotropic-genes-in-psychiatry-calcium-channels-and-the-stress-related-fkbp5-gene-in-antidepressant-resistance
#10
Chiara Fabbri, Filippo Corponi, Diego Albani, Ilaria Raimondi, Gianluigi Forloni, Koen Schruers, Siegfried Kasper, Alexander Kautzky, Joseph Zohar, Daniel Souery, Stuart Montgomery, Carlotta Pia Cristalli, Vilma Mantovani, Julien Mendlewicz, Alessandro Serretti
A candidate gene and a genome-wide approach were combined to study the pharmacogenetics of antidepressant response and resistance. Investigated genes were selected on the basis of pleiotropic effect across psychiatric phenotypes in previous genome-wide association studies and involvement in antidepressant response. Three samples with major depressive disorder (total=671) were genotyped for 44 SNPs in 8 candidate genes (CACNA1C, CACNB2, ANK3, GRM7, TCF4, ITIH3, SYNE1, FKBP5). Phenotypes were response/remission after 4weeks of treatment and treatment-resistant depression (TRD)...
October 6, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28975925/fkbp5-moderates-the-association-between-antenatal-maternal-depressive-symptoms-and-neonatal-brain-morphology
#11
Changqing Wang, Mojun Shen, Bryan Guillaume, Yap-Seng Chong, Helen Chen, Marielle V Fortier, Michael J Meaney, Anqi Qiu
Antenatal maternal depressive symptoms influence fetal brain development and increase the risk for depression in offspring. Such vulnerability is often moderated by the offspring's genetic variants. This study aimed to examine whether FKBP5, a key regulator of the hypothalamic-pituitary-adrenal (HPA) axis, moderates the association between antenatal maternal depressive symptoms and in utero brain development, using an Asian cohort with 161 mother-offspring dyads. Antenatal maternal depressive symptoms were measured using the Edinburgh Postnatal Depression Scale (EPDS) during the second trimester of pregnancy...
October 3, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28961425/fkbp5-dna-methylation-does-not-mediate-the-association-between-childhood-maltreatment-and-depression-symptom-severity-in-the-detroit-neighborhood-health-study
#12
Angela C Bustamante, Allison E Aiello, Guia Guffanti, Sandro Galea, Derek E Wildman, Monica Uddin
Exposure to childhood maltreatment increases the risk of developing mental illness later in life. Childhood maltreatment and depression have both been associated with dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis-a key regulator of the body's stress response. Additionally, HPA axis dysregulation has been implicated in the etiology of a range of mental illnesses. A substantial body of work has shown history of childhood maltreatment alters DNA methylation levels within key HPA axis genes. We therefore investigated whether one of these key genes, FKBP5 mediates the relationship between childhood maltreatment and depression, and assessed FKBP5 DNA methylation and gene expression within 112 adults from the Detroit Neighborhood Health Study (DNHS)...
September 18, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28938470/genetic-disruption-of-21-hydroxylase-in-zebrafish-causes-interrenal-hyperplasia
#13
Helen Eachus, Andreas Zaucker, James A Oakes, Aliesha Griffin, Meltem Weger, Tülay Güran, Angela Taylor, Abigail Harris, Andy Greenfield, Jonathan L Quanson, Karl-Heinz Storbeck, Vincent T Cunliffe, Ferenc Müller, Nils Krone
Congenital adrenal hyperplasia is a group of common inherited disorders leading to glucocorticoid deficiency. Most cases are caused by 21-hydroxylase deficiency (21OHD). The systemic consequences of imbalanced steroid hormone biosynthesis due to severe 21OHD remains poorly understood. Therefore, we have developed a zebrafish model for 21OHD, which focuses on the impairment of glucocorticoid biosynthesis. A single 21-hydroxylase gene (cyp21a2) is annotated in the zebrafish genome based on sequence homology. Our in silico analysis of the Cyp21a2 protein sequence suggests a sufficient degree of similarity for the usage of zebrafish cyp21a2 to model aspects of human 21OHD in vivo...
September 13, 2017: Endocrinology
https://www.readbyqxmd.com/read/28902619/a-case-control-association-study-of-12-candidate-genes-and-attempted-suicide-in-french-adolescents
#14
Bojan Mirkovic, David Cohen, Claudine Laurent, Malaika Lasfar, Christophe Marguet, Prsicille Gerardin
Background Suicide is the second leading cause of death for 10-19-year-olds. Evidence has shown that attempted suicide is a complex interplay of genes and environmental factors. In the adult population, possible associations between genetic polymorphisms and suicidal behaviors have been investigated for several genes, most often with inconsistent findings and poor replicability of significant associations. This study aimed to identify gene variants conferring risk for adolescent suicide attempt. Methods We selected the genes and variants after an analysis of the literature and a selection of the most significant associations identified...
September 13, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28891785/attachment-style-moderates-effects-of-fkbp5-polymorphisms-and-childhood-abuse-on-posttraumatic-stress-symptoms-results-from-the-national-health-and-resilience-in-veterans-study
#15
Amanda J F Tamman, Lauren M Sippel, Shizhong Han, Yuval Neria, John H Krystal, Steven M Southwick, Joel Gelernter, Robert H Pietrzak
OBJECTIVES: To determine the main and interactive effects of four FKBP5 polymorphisms (rs9296158, rs3800373, rs1360780, and rs9470080), childhood abuse, and attachment style in predicting severity of PTSD symptoms in two independent, nationally representative samples of U.S. military veterans. METHODS: Data were analyzed from two independent samples of European American (EA) U.S. military veterans who participated in the National Health and Resilience in Veterans Study (N = 1,585 and 577 respectively)...
September 11, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28889074/interaction-between-fkbp5-gene-and-childhood-trauma-on-psychosis-depression-and-anxiety-symptoms-in-a-non-clinical-sample
#16
Marta de Castro-Catala, Elionora Peña, Thomas R Kwapil, Sergi Papiol, Tamara Sheinbaum, Paula Cristóbal-Narváez, Sergi Ballespí, Neus Barrantes-Vidal, Araceli Rosa
BACKGROUND: Childhood trauma has been associated with a heightened risk for presenting clinical and non-clinical psychopathology in adulthood. Genes related with the stress response, such as the FK506 binding protein 51 (FKBP5), are plausible candidates moderating the effects of childhood trauma on the emergence of such symptoms later on. The present study aimed to explore the moderating role of FKBP5 genetic variability on the association of different types of childhood trauma with subclinical psychosis, depression and anxiety in a non-clinical sample...
August 26, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28879214/chicken-domestication-changes-expression-of-stress-related-genes-in-brain-pituitary-and-adrenals
#17
Pia Løtvedt, Amir Fallahshahroudi, Lejla Bektic, Jordi Altimiras, Per Jensen
Domesticated species have an attenuated behavioral and physiological stress response compared to their wild counterparts, but the genetic mechanisms underlying this change are not fully understood. We investigated gene expression of a panel of stress response-related genes in five tissues known for their involvement in the stress response: hippocampus, hypothalamus, pituitary, adrenal glands and liver of domesticated White Leghorn chickens and compared it with the wild ancestor of all domesticated breeds, the Red Junglefowl...
December 2017: Neurobiology of Stress
https://www.readbyqxmd.com/read/28875708/fkbp5-methylation-as-a-possible-marker-for-cortisol-state-and-transient-cortisol-exposure-in-healthy-human-subjects
#18
Britta K Winkler, Hendrik Lehnert, Henrik Oster, Henriette Kirchner, Birgit Harbeck
Current glucocorticoid replacement regimens, in adrenal insufficiency, fail to mimic the physiological cortisol secretion, thereby fostering serious side effects. AIM: To experimentally evaluate the impact of CpG methylation within the FKBP5 gene as a possible short- and long-term marker for cortisol exposure in humans. MATERIALS & METHODS: An ACTH-stimulation test was carried out and methylation status of the FKBP5 gene in leukocytes was determined. RESULTS: A negative correlation between basal levels of methylation and serum cortisol was observed...
October 2017: Epigenomics
https://www.readbyqxmd.com/read/28865405/the-role-of-stress-regulation-genes-in-moderating-the-association-of-stress-and-daily-life-psychotic-experiences
#19
P Cristóbal-Narváez, T Sheinbaum, I Myin-Germeys, T R Kwapil, M de Castro-Catala, T Domínguez-Martínez, A Racioppi, M Monsonet, L Hinojosa-Marqués, R van Winkel, A Rosa, N Barrantes-Vidal
OBJECTIVE: The interaction of single nucleotide polymorphisms with both distal and proximal environmental factors across the extended psychosis phenotype is understudied. This study examined (i) the interaction of relevant SNPs with both early-life adversity and proximal (momentary) stress on psychotic experiences (PEs) in an extended psychosis sample; and (ii) differences between early-psychosis and non-clinical groups for these interactions. METHODS: Two hundred and forty-two non-clinical and 96 early-psychosis participants were prompted randomly eight times daily for 1 week to complete assessments of current experiences, including PEs and stress...
October 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28863347/deletion-of-dlk2-increases-the-vulnerability-to-anxiety-like-behaviors-and-impairs-the-anxiolytic-action-of-alprazolam
#20
Francisco Navarrete, María S García-Gutiérrez, Jorge Laborda, Jorge Manzanares
The purpose of this study was to evaluate the role of the non-canonical DLK2 NOTCH ligand in the regulation of emotional behavior. To this aim, anxiety and depressive-like behaviors were examined in Dlk2 knock-out (Dlk2(-/-)) and its corresponding wild-type (WT) mice. Furthermore, relative gene expression analyses of corticotropin releasing hormone (Crh) in the paraventricular nucleus (PVN), glucocorticoid receptor (NR3C1) and FK506 binding protein 5 (FKBP5) in the hippocampus (HIPP), and the transcription factors Hes1, Hes5 and Hey1 in the PVN, HIPP and amygdala (AMY) were carried out in Dlk2(-/-) and WT mice under basal conditions and after exposure to restraint stress...
August 29, 2017: Psychoneuroendocrinology
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