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https://www.readbyqxmd.com/read/29021890/zebrafish-knockout-of-down-syndrome-gene-dyrk1a-shows-social-impairments-relevant-to-autism
#1
Oc-Hee Kim, Hyun-Ju Cho, Enna Han, Ted Inpyo Hong, Krishan Ariyasiri, Jung-Hwa Choi, Kyu-Seok Hwang, Yun-Mi Jeong, Se-Yeol Yang, Kweon Yu, Doo-Sang Park, Hyun-Woo Oh, Erica E Davis, Charles E Schwartz, Jeong-Soo Lee, Hyung-Goo Kim, Cheol-Hee Kim
BACKGROUND: DYRK1A maps to the Down syndrome critical region at 21q22. Mutations in this kinase-encoding gene have been reported to cause microcephaly associated with either intellectual disability or autism in humans. Intellectual disability accompanied by microcephaly was recapitulated in a murine model by overexpressing Dyrk1a which mimicked Down syndrome phenotypes. However, given embryonic lethality in homozygous knockout (KO) mice, no murine model studies could present sufficient evidence to link Dyrk1a dysfunction with autism...
2017: Molecular Autism
https://www.readbyqxmd.com/read/29021740/electroacupuncture-alleviates-surgical-trauma-induced-hypothalamus-pituitary-adrenal-axis-hyperactivity-via-microrna-142
#2
Jing Zhu, Zhejun Chen, Zehui Meng, Minda Ju, Mizhen Zhang, Gencheng Wu, Haidong Guo, Zhanzhuang Tian
Electroacupuncture (EA) could improve the hyperactivity of the hypothalamus pituitary adrenal (HPA) axis induced by hepatectomy. However, its underlying mechanism still remains largely unclear. Here, we found that hypothalamic corticotrophin releasing hormone (CRH) modulates the function of the HPA axis, while hepatectomy induced an HPA axis disorder and EA application could regulate the hypothalamic CRH. We first demonstrated that microRNAs (miRNAs) target on CRH via bioinformatics analysis and screened them in the primary hypothalamic neurons...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28994157/genome-wide-association-study-and-annotating-candidate-gene-networks-affecting-age-at-first-calving-in-nellore-cattle
#3
R R Mota, S E F Guimarães, M R S Fortes, B Hayes, F F Silva, L L Verardo, M J Kelly, C F de Campos, J D Guimarães, R R Wenceslau, J M Penitente-Filho, J F Garcia, S Moore
We performed a genome-wide mapping for the age at first calving (AFC) with the goal of annotating candidate genes that regulate fertility in Nellore cattle. Phenotypic data from 762 cows and 777k SNP genotypes from 2,992 bulls and cows were used. Single nucleotide polymorphism (SNP) effects based on the single-step GBLUP methodology were blocked into adjacent windows of 1 Megabase (Mb) to explain the genetic variance. SNP windows explaining more than 0.40% of the AFC genetic variance were identified on chromosomes 2, 8, 9, 14, 16 and 17...
October 9, 2017: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
https://www.readbyqxmd.com/read/28993972/the-effect-of-acute-and-repeated-stress-on-crh-r1-and-crh-r2-mrna-expression-in-pituitaries-of-wild-type-and-crh-knock-out-mice
#4
Vera Klenerova, Richard Kvetnansky, Sixtus Hynie
The activation of the HPA axis is the endocrine measure of stress responsiveness that is initiated by corticotropin-releasing hormone (CRH). CRH exerts its effects via CRHR1 and CRH-R2 receptors coupled to the cAMP signaling system and this process involves transcription factor cAMP-responsive element-binding protein (CREB).This study investigated the role of CRH and the possible involvement of CREB in gene regulation of CRH receptor, under basal conditions and after stress application in the pituitary. We used wild type (wt +/+) controls and CRH knock-out (CRH-KO -/-) male mice...
October 9, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28992676/intravenous-corticotropin-releasing-hormone-administration-increases-esophageal-electrical-sensitivity-in-healthy-individuals
#5
Takahisa Yamasaki, Toshihiko Tomita, Mayu Takimoto, Takashi Kondo, Katsuyuki Tozawa, Yoshio Ohda, Tadayuki Oshima, Hirokazu Fukui, Jiro Watari, Hiroto Miwa
Background/Aims: When a person is experiencing stress, corticotropin-releasing hormone (CRH) can modulate gut physiologies, such as visceral sensation or gastrointestinal motility, and its intravenous administration mimics stress-induced physiological changes. However, the influence of CRH on the esophagus is yet unknown. Accordingly, we investigated whether intravenous CRH administration increases esophageal sensitivity to electrical stimulation in healthy Japanese subjects. Methods: Twenty healthy subjects were recruited...
October 30, 2017: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/28986303/corticotropin-releasing-hormone-can-selectively-stimulate-glucose-uptake-in-corticotropinoma-via-glucose-transporter-1
#6
Jie Lu, Blake K Montgomery, Grégoire P Chatain, Alejandro Bugarini, Qi Zhang, Xiang Wang, Nancy A Edwards, Abhik Ray-Chaudhury, Marsha J Merrill, Russell R Lonser, Prashant Chittiboina
BACKGROUND: Pre-operative detection of corticotropin (ACTH) secreting microadenomas causing Cushing's disease (CD) improves surgical outcomes. Current best magnetic resonance imaging fails to detect up to 40% of these microadenomas. (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography (PET) is specific, but not sensitive in detecting corticotropinomas. Theoretically, secretagogue stimulation with corticotropin releasing hormone (CRH) could improve detection of adenomas with (18)F-FDG PET...
October 3, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28982596/subsequent-maternal-separation-exacerbates-neurobehavioral-abnormalities-in-rats-neonatally-exposed-to-sevoflurane-anesthesia
#7
Jiaojiao Yang, Lingsha Ju, Min Jia, Hui Zhang, Xiaoru Sun, Muhuo Ji, Jianjun Yang, Anatoly E Martynyuk
Several recent studies suggest that in the human population, a routine, short anesthetic in otherwise healthy infants is void of neurodevelopmental insult. On the other hand, many human retrospective epidemiological studies report evidence of cognitive abnormalities in children after testing those who had different anesthesia-requiring procedures in early childhood. We tested in a rat model whether post-anesthesia stressful environmental factors can contribute to developmental abnormalities that were initiated by a relatively short exposure to sevoflurane, the most widely used anesthetic in pediatric anesthesia, whose polyvalent actions include enhancement of gamma-aminobutyric acid type A receptor (GABAAR) activity...
October 2, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28970041/crassifoside-h-improve-the-depressive-like-behavior-of-rats-under-chronic-unpredictable-mild-stress-possible-involved-mechanisms
#8
Yue Zhang, Jin-Fang Ge, Fei-Fei Wang, Feng Liu, Chao Shi, Ning Li
Crassifoside (CH) is a novel chlorine-containing compound isolated from rhizomes of Curculigo glabrescens. This study aimed to explore the antidepressant-like effect of CH and involved mechanisms. A rat depression model was established using chronic unpredictable mild stress (CUMS) paradigm. Behavioral tests including sucrose preference test (SPT), open field test (OFT) and forced swimming test (FST) were used to evaluate the antidepressant-like effect of CH. The levels of plasma corticosterone (CORT) and corticotrophin-releasing factor (CRF) in hypothalamus were measured to determine the activity of hypothalamic pituitary-adrenal (HPA) axis...
September 29, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28963545/altered-brain-and-gut-responses-to-corticotropin-releasing-hormone-crh-in-patients-with-irritable-bowel-syndrome
#9
Michiko Kano, Tomohiko Muratsubaki, Lukas Van Oudenhove, Joe Morishita, Makoto Yoshizawa, Keiji Kohno, Mao Yagihashi, Yukari Tanaka, Shunji Mugikura, Patrick Dupont, Huynh Giao Ly, Kei Takase, Motoyori Kanazawa, Shin Fukudo
Stress is a known trigger of irritable bowel syndrome (IBS) and exacerbates its gastrointestinal symptoms. However, underlying the physiological mechanism remains unknown. Here, we investigated hypothalamic-pituitary-adrenal (HPA) axis, colonic motility, and autonomic responses to corticotropin-releasing hormone (CRH) administration as well as brain activity alterations in IBS. The study included 28 IBS patients and 34 age and sex-matched healthy control subjects. IBS patients demonstrated greater adrenocorticotropic hormone (ACTH) responses to CRH than control subjects...
September 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28958685/saikosaponin-a-attenuates-perimenopausal-depression-like-symptoms-by-chronic-unpredictable-mild-stress
#10
Xue-Qin Chen, Shu-Jiao Chen, Wen-Na Liang, Miao Wang, Cheng-Fu Li, Shuang-Shuang Wang, Shu-Qi Dong, Li-Tao Yi, Can-Dong Li
Accumulating studies have shown that a traditional Chinese decoction Chaihu-Shugan-San produced the antidepressant-like effects in rodents including in perimenopausal. Previous studies and our preliminary study indicated that saikosaponin A, one of the main constituents of Chaihu-Shugan-San, enhanced brain-derived neurotrophic factor (BDNF) expression in rats. Herein, this study aimed to evaluate the antidepressant-like effects of saikosaponin A in perimenopausal rats exposed to chronic unpredictable mild stress (CUMS)...
September 25, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28951706/does-the-corticotropin-releasing-hormone-system-play-a-role-in-the-pathogenesis-of-lichen-planus
#11
Bengu Cevirgen Cemil, Demet Yilmazer, Hatice Atas, Fatma Pelin Cengiz, Filiz Canpolat, Murat Alper, Muzeyyen Gonul
INTRODUCTION: Lichen planus (LP) is a chronic inflammatory disease, where the psychogenic factors seem to play an important role in the pathogenesis. AIM: To determine the expression of corticotropin-releasing hormone (CRH) receptor type 1 (CRH-R1) in LP. MATERIAL AND METHODS: Thirty-two LP patients and 17 age/gender-matched controls were included in the study. Detailed information about the disease and body surface area (BSA) covered by the lesions was recorded...
August 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28941000/increased-accuracy-of-a-novel-mrna-based-urine-test-for-bladder-cancer-surveillance
#12
Renate Pichler, Josef Fritz, Gennadi Tulchiner, Gerald Klinglmair, Afschin Soleiman, Wolfgang Horninger, Helmut Klocker, Isabel Heidegger
OBJECTIVES: To evaluate the diagnostic accuracy of the Xpert Bladder Cancer (BC) Monitor, compared with cystoscopy and cytology in the oncological follow-up of non-muscle-invasive bladder cancer (NMIBC). MATERIAL AND METHODS: A total of 140 patients with a history of NMIBC undergoing routine surveillance at our institution were enrolled prospectively in this study (ISRCTN study registry number 37210907). Urine cytology was evaluated according to the Paris classification system...
September 20, 2017: BJU International
https://www.readbyqxmd.com/read/28940017/critical-illness-related-corticosteroid-insufficiency-circi-a-narrative-review-from-a-multispecialty-task-force-of-the-society-of-critical-care-medicine-sccm-and-the-european-society-of-intensive-care-medicine-esicm
#13
Djillali Annane, Stephen M Pastores, Wiebke Arlt, Robert A Balk, Albertus Beishuizen, Josef Briegel, Joseph Carcillo, Mirjam Christ-Crain, Mark S Cooper, Paul E Marik, Gianfranco Umberto Meduri, Keith M Olsen, Bram Rochwerg, Sophia C Rodgers, James A Russell, Greet Van den Berghe
OBJECTIVE: To provide a narrative review of the latest concepts and understanding of the pathophysiology of critical illness-related corticosteroid insufficiency (CIRCI). PARTICIPANTS: A multispecialty task force of international experts in critical care medicine and endocrinology and members of the Society of Critical Care Medicine (SCCM) and the European Society of Intensive Care Medicine (ESICM). DATA SOURCES: Medline, Database of Abstracts of Reviews of Effects (DARE), Cochrane Central Register of Controlled Trials (CENTRAL) and the Cochrane Database of Systematic Reviews...
September 21, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28938481/vesicular-glutamate-transporter-1-knockdown-in-infralimbic-prefrontal-cortex-augments-neuroendocrine-responses-to-chronic-stress-in-male-rats
#14
Brent Myers, Jessica M McKlveen, Rachel Morano, Yvonne M Ulrich-Lai, Matia B Solomon, Steven P Wilson, James P Herman
Chronic stress-associated pathologies frequently associate with alterations in the structure and activity of the medial prefrontal cortex (mPFC). However, the influence of infralimbic cortex (IL) projection neurons on hypothalamic-pituitary-adrenal (HPA) axis activity is unknown, as is the involvement of these cells in chronic stress-induced endocrine alterations. In the current study, a lentiviral-packaged vector coding for a small interfering RNA (siRNA) targeting vesicular glutamate transporter (vGluT) 1 messenger RNA (mRNA) was microinjected into the IL of male rats...
October 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938251/critical-illness-related-corticosteroid-insufficiency-circi-a-narrative-review-from-a-multispecialty-task-force-of-the-society-of-critical-care-medicine-sccm-and-the-european-society-of-intensive-care-medicine-esicm
#15
Djillali Annane, Stephen M Pastores, Wiebke Arlt, Robert A Balk, Albertus Beishuizen, Josef Briegel, Joseph Carcillo, Mirjam Christ-Crain, Mark S Cooper, Paul E Marik, Gianfranco Umberto Meduri, Keith M Olsen, Bram Rochwerg, Sophia C Rodgers, James A Russell, Greet Van den Berghe
OBJECTIVE: To provide a narrative review of the latest concepts and understanding of the pathophysiology of critical illness-related corticosteroid insufficiency (CIRCI). PARTICIPANTS: A multi-specialty task force of international experts in critical care medicine and endocrinology and members of the Society of Critical Care Medicine and the European Society of Intensive Care Medicine. DATA SOURCES: Medline, Database of Abstracts of Reviews of Effects (DARE), Cochrane Central Register of Controlled Trials (CENTRAL) and the Cochrane Database of Systematic Reviews...
September 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28922466/blinatumomab-pharmacodynamics-and-exposure-response-relationships-in-relapsed-refractory-acute-lymphoblastic-leukemia
#16
Min Zhu, Andrea Kratzer, Jessica Johnson, Chris Holland, Christian Brandl, Indrajeet Singh, Andreas Wolf, Sameer Doshi
We evaluated blinatumomab pharmacokinetics, pharmacodynamics (CD3+ T-cell, CD19+ B-cell, and cytokine levels), and their associations with efficacy or safety in relapsed/refractory acute lymphoblastic leukemia. Blinatumomab pharmacokinetics (continuous intravenous infusion) from a phase 2 study (n = 189; NCT01466179) were assessed noncompartmentally. Associations between steady-state concentration (Css ) and efficacy (complete remission [CR] or CR with partial hematologic recovery [CRh]) or safety (cytokine release syndrome [CRS] and neurologic events [NEs]) were evaluated with statistical models...
September 18, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28912247/mir-212-mediates-counter-regulation-on-crh-expression-and-hpa-axis-activity-in-male-mice
#17
Yuxiao Tang, Xingjian Cai, Hongwei Zhang, Hui Shen, Wanyin Wang, Zhilei Shen, Wei Gu, Changquan Ling, Min Li
The mechanisms of hypothalamic-pituitary-adrenal (HPA) axis regulation have been studied persistently but still are not elucidated. Considering the emerging roles of microRNA in stress response, we conducted a microRNA microarray in mice hypothalamus to identify the potential role of microRNAs in regulating the HPA axis. In total, 41 microRNAs changed during heat stress, in which we found that miR-212 contains binding sequence with corticotropin-releasing hormone (CRH) 3'UTR according to sequence analysis. We observed that miR-212 expression in the hypothalamus was escalated by repeated heat and restraint stress...
September 14, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28911267/the-behavioral-and-molecular-evaluation-of-effects-of-social-instability-stress-as-a-model-of-stress-related-disorders-in-adult-female-rats
#18
Marta Maria Nowacka-Chmielewska, Daniela Kasprowska-Liśkiewicz, Jarosław Jerzy Barski, Ewa Obuchowicz, Andrzej Małecki
The study aimed to test the hypotheses that chronic social instability stress (CSIS) alters behavioral and physiological parameters and expression of selected genes important for stress response and social behaviors. Adult female Sprague-Dawley rats were subjected to the 4-week CSIS procedure, which involves unpredictable rotation between phases of isolation and overcrowding. Behavioral analyses (Experiment 1) were performed on the same rats before and after CSIS (n = 16) and physiological and biochemical measurements (Experiment 2) were made on further control (CON; n = 7) and stressed groups (CSIS; n = 8)...
September 15, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28895001/regulation-of-hypothalamo-pituitary-adrenocortical-responses-to-stressors-by-the-nucleus-of-the-solitary-tract-dorsal-vagal-complex
#19
REVIEW
James P Herman
Hindbrain neurons in the nucleus of the solitary tract (NTS) are critical for regulation of hypothalamo-pituitary-adrenocortical (HPA) responses to stress. It is well known that noradrenergic (as well as adrenergic) neurons in the NTS send direct projections to hypophysiotropic corticotropin-releasing hormone (CRH) neurons and control activation of HPA axis responses to acute systemic (but not psychogenic) stressors. Norepinephrine (NE) signaling via alpha1 receptors is primarily excitatory, working either directly on CRH neurons or through presynaptic activation of glutamate release...
September 11, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28890385/reduced-coronary-reactive-hyperemia-in-mice-was-reversed-by-the-soluble-epoxide-hydrolase-inhibitor-t-aucb-role-of-adenosine-a2a-receptor-and-plasma-oxylipins
#20
Ahmad Hanif, Matthew L Edin, Darryl C Zeldin, Christophe Morisseau, John R Falck, Catherine Ledent, Stephen L Tilley, Mohammed A Nayeem
Coronary reactive hyperemia (CRH) protects the heart against ischemia. Adenosine A2AAR-deficient (A2AAR(-/-)) mice have increased expression of soluble epoxide hydrolase (sEH); the enzyme responsible for breaking down the cardioprotective epoxyeicosatrienoic acids (EETs) to dihydroxyeicosatrienoic acids (DHETs). sEH-inhibition enhances CRH, increases EETs, and modulates oxylipin profiles. We investigated the changes of oxylipins and their impact on CRH in A2AAR(-/-) and wild type (WT) mice. We hypothesized that the attenuated CRH in A2AAR(-/-) mice is mediated by changes in oxylipin profiles, and that it can be reversed by either sEH- or ω-hydroxylases-inhibition...
July 2017: Prostaglandins & Other Lipid Mediators
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