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https://www.readbyqxmd.com/read/29346768/activation-of-ampk-regulated-crh-neurons-in-the-pvh-is-sufficient-and-necessary-to-induce-dietary-preference-for-carbohydrate-over-fat
#1
Shiki Okamoto, Tatsuya Sato, Michihiro Tateyama, Haruaki Kageyama, Yuko Maejima, Masanori Nakata, Satoshi Hirako, Takashi Matsuo, Sanda Kyaw, Tetsuya Shiuchi, Chitoku Toda, Udval Sedbazar, Kumiko Saito, Nur Farehan Asgar, Boyang Zhang, Shigefumi Yokota, Kenta Kobayashi, Fabienne Foufelle, Pascal Ferré, Masamitsu Nakazato, Hiroaki Masuzaki, Seiji Shioda, Toshihiko Yada, Barbara B Kahn, Yasuhiko Minokoshi
Food selection is essential for metabolic homeostasis and is influenced by nutritional state, food palatability, and social factors such as stress. However, the mechanism responsible for selection between a high-carbohydrate diet (HCD) and a high-fat diet (HFD) remains unknown. Here, we show that activation of a subset of corticotropin-releasing hormone (CRH)-positive neurons in the rostral region of the paraventricular hypothalamus (PVH) induces selection of an HCD over an HFD in mice during refeeding after fasting, resulting in a rapid recovery from the change in ketone metabolism...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346425/hippocampal-corticotropin-releasing-hormone-neurons-support-recognition-memory-and-modulate-hippocampal-excitability
#2
Andrew Hooper, Patrick M Fuller, Jamie Maguire
Corticotropin-releasing hormone (CRH) signaling in the hippocampus has been established to be important for mediating the effects of stress on learning and memory. Given our laboratory's recent characterization of a subset of hippocampal CRH neurons as a novel class of GABAergic interneurons, we hypothesized that these local GABAergic hippocampal CRH neurons may influence hippocampal function. Here we applied an array of molecular tools to selectively label and manipulate hippocampal CRH neurons in mice, in order to assess this interneuron population's impact on hippocampus-dependent behaviors and hippocampal network excitability...
2018: PloS One
https://www.readbyqxmd.com/read/29338944/histological-and-morphofunctional-parameters-of-the-hypothalamic-pituitary-adrenal-system-are-sensitive-to-daidzein-treatment-in-the-adult-rat
#3
Svetlana Trifunović, Milica Manojlović-Stojanoski, Nataša Nestorović, Nataša Ristić, Branka Šošić-Jurjević, Lazo Pendovski, Verica Milošević
The isoflavone, daidzein is a biologically active, plant-derived compound that interacts with estrogen receptors. Data from previous studies have suggested that daidzein exerts beneficial effects in many diseases; however, as an endocrine disrupter, it may also alter the functioning of the endocrine system. Data regarding the effect of daidzein on the morphofunctional and histological parameters of the hypothalamic-pituitary-adrenal (HPA) system is still lacking. Therefore, using the newCAST stereological software, we investigated the effects of chronic (21 days) daidzein treatment on corticotropin-releasing hormone (CRH) neurons within the hypothalamus and corticotropes (ACTH cells) in the pituitary, while image analysis was employed to-examine the intensity of fluorescence of CRH in the median eminence (ME) and adrenocorticotropin hormone in the pituitary in adult orchidectomized (Ovx) rats...
January 12, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29338844/sfe-sfedp-adrenal-insufficiency-french-consensus-introduction-and-handbook
#4
Yves Reznik, Pascal Barat, Jérôme Bertherat, Claire Bouvattier, Frédéric Castinetti, Olivier Chabre, Philippe Chanson, Christine Cortet, Brigitte Delemer, Bernard Goichot, Damien Gruson, Laurence Guignat, Emmanuelle Proust-Lemoine, Marie-Laure Raffin Sanson, Rachel Reynaud, Dinane Samara Boustani, Dominique Simon, Antoine Tabarin, Delphine Zenaty
The French endocrinology society (SFE) and the French pediatric endocrinology society (DFSDP) have drawn up recommendations for the management of primary and secondary adrenal insufficiency in the adult and child, based on an analysis of the literature by 19 experts in 6 work-groups. A diagnosis of adrenal insufficiency should be suspected in the presence of a number of non-specific symptoms except hyperpigmentation which is observed in primary adrenal insufficiency. Diagnosis rely on plasma cortisol and ACTH measurement at 8am and/or the cortisol increase after synacthen administration...
January 12, 2018: Annales D'endocrinologie
https://www.readbyqxmd.com/read/29317694/murine-splenic-b-cells-express-corticotropin-releasing-hormone-receptor-2-that-affect-their-viability-during-a-stress-response
#5
Guillaume Harlé, Sandra Kaminski, David Dubayle, Jean-Pol Frippiat, Armelle Ropars
Chronic stress is now recognized as a risk factor for disease development and/or exacerbation. It has been shown to affect negatively the immune system and notably the humoral immune response. Corticotropin-releasing hormone (CRH) is known to play a crucial role in stress response. CRH receptors are expressed on different immune cells such as granulocytes, monocytes and T cells. However, up to now, no CRH receptor has been described on B cells which are key players of the humoral immune response. In order to highlight new pathways by which stress may impact immunity, we investigated the role of CRH in B cells...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317606/corticotropin-releasing-factor-1-receptor-haplotype-and-cognitive-features-of-major-depression
#6
REVIEW
Elena Goetz Davis, Jennifer Keller, Joachim Hallmayer, Heather Ryan Pankow, Greer M Murphy, Ian H Gotlib, Alan F Schatzberg
Corticotropin-releasing factor signaling through CRF receptor type 1 (CRF1) has been shown to contribute to learning and memory function. A haplotype of alleles T-A-T in a set of common polymorphisms in the gene encoding for CRF1 (CRHR1) has been associated with both depression vulnerability and alterations in cognitive functioning. The present study investigated the relations between the TAT haplotype and specific symptoms of depression, self-reported ruminative behaviors, and neuropsychological performance on a learning and memory task...
January 10, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29315139/-dtpa-pabn-leu5-des-acyl-ghrelin-1-5-as-a-new-carrier-of-radionuclides-and-potential-precursor-of-radiopharmaceuticals
#7
Grzegorz Wójciuk, Marcin Kruszewski
BACKGROUND: Ghrelin is a peptide consisting of 28 aminoacids and an octadecyl side chain (acyl group) binding to the growth hormone secretagogue receptor type 1a (GHS-R1a). Its des-acylated form, des-acyl ghrelin (DAG) binds to the corticotropin releasing factor receptor type 2a (CRF2a) located on endocrine cancer cells such as the prostate carcinoma cell line DU 145. AIM: The aim of this study is to develop a new DAG-based carrier of radionuclides with potential application in therapy...
January 8, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29311741/social-transmission-and-buffering-of-synaptic-changes-after-stress
#8
Toni-Lee Sterley, Dinara Baimoukhametova, Tamás Füzesi, Agnieszka A Zurek, Nuria Daviu, Neilen P Rasiah, David Rosenegger, Jaideep S Bains
Stress can trigger enduring changes in neural circuits and synapses. The behavioral and hormonal consequences of stress can also be transmitted to others, but whether this transmitted stress has similar effects on synapses is not known. We found that authentic stress and transmitted stress in mice primed paraventricular nucleus of the hypothalamus (PVN) corticotropin-releasing hormone (CRH) neurons, enabling the induction of metaplasticity at glutamate synapses. In female mice that were subjected to authentic stress, this metaplasticity was diminished following interactions with a naive partner...
January 8, 2018: Nature Neuroscience
https://www.readbyqxmd.com/read/29306937/the-effects-of-stress-and-meditation-on-the-immune-system-human-microbiota-and-epigenetics
#9
Ayman Mukerji Househam, Christine Tara Peterson, Deepak Chopra
Context • Globally, more than 25% of individuals are affected by anxiety and depression disorders. Meditation is gaining popularity in clinical settings and its treatment efficacy is being studied for a wide array of psychological and physiological ailments. An exploration of stress physiology is an essential precursor to delineation of the mechanisms underlying the beneficial effects of meditation practices. Objective • The review outlines a model of interconnected physiological processes that might support the continued inclusion and expansion of meditation in the treatment of diverse medical conditions and to investigate the role that gut microbiota may play in realizing well-being through meditation...
October 2017: Advances in Mind-body Medicine
https://www.readbyqxmd.com/read/29306681/analytical-interference-in-the-corticotropin-immunoassay-in-patients-with-adrenal-adenomas
#10
Pedro Iglesias, Ana García Cano, Lucía Jiménez, Juan José Díez
No abstract text is available yet for this article.
January 3, 2018: Endocrinología, Diabetes y Nutrición
https://www.readbyqxmd.com/read/29305536/pou6f1-mediates-neuropeptide-dependent-plasticity-in-the-adult-brain
#11
Cynthia K McClard, Mikhail Y Kochukov, Isabella Herman, Zhandong Liu, Aiden Eblimit, Yalda Moayedi, Joshua Ortiz-Guzman, Daniel Colchado, Brandon Pekarek, Sugi Paneerselvam, Graeme Mardon, Benjamin R Arenkiel
The mouse olfactory bulb (OB) features continued, activity-dependent integration of adult-born neurons, providing a robust model to examine mechanisms of plasticity in the adult brain. We previously reported that local OB interneurons secrete the neuropeptide corticotropin releasing hormone (CRH) in an activity-dependent manner onto adult-born granule neurons, and that local CRH signaling promotes expression of synaptic machinery in the bulb. This effect is mediated via activation of the CRH receptor 1 (CRHR1), which is developmentally regulated during adult-born neuron maturation...
January 5, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29288748/abandoned-prairie-vole-mothers-show-normal-maternal-care-but-altered-emotionality-potential-influence-of-the-brain-corticotropin-releasing-factor-system
#12
Oliver J Bosch, Tobias T Pohl, Inga D Neumann, Larry J Young
When fathers leave the family, mothers are at increased risk of developing depression and anxiety disorders. In biparental, socially monogamous prairie voles (Microtus ochrogaster), sudden bond disruption increases passive stress-coping, indicative of depressive-like behavior, and acts as chronic stressor in both males and females. However, the consequences of separation in lactating prairie vole mothers are unknown. In the present study, following 18 days of cohousing, half of the prairie vole pairs were separated by removing the male...
December 27, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29280926/critical-illness-related-corticosteroid-insufficiency-in-cardiogenic-shock-patients-prevalence-and-prognostic-role
#13
Nicolas Ducrocq, Pascal Biferi, Nicolas Girerd, Ichraq Latar, Simon Lemoine, Pierre Perez, Carine Thivilier, Bruno Levy, Antoine Kimmoun
BACKGROUND: Cardiogenic shock shares with septic shock common hemodynamic features, inflammatory patterns and most likely similar complications such as critical illness-related corticosteroid insufficiency. The aim of this study was to evaluate the prevalence of critical illness-related corticosteroid insufficiency in cardiogenic shock patients and to secondarily assess its prognostic value on 90-day mortality. METHODS: A single-centre prospective observational study conducted over a three-year period and including all patients with cardiogenic shock...
December 26, 2017: Shock
https://www.readbyqxmd.com/read/29280084/the-effect-of-nesfatin-1-on-food-intake-in-neonatal-chicks-role-of-crf1-crf2-and-h1-h3-receptors
#14
Hooman Heidarzadeh, Morteza Zendehdel, Vahab Babapour, Hasan Gilanpour
The present study was designed to determine the effect of central injection of Nesfatin-1 and corticotropin and histaminergic systems on food intake in neonatal meat-type chicks. In this study, 7 experiments were designed, each with 4 treatment groups. In experiment 1, four groups of chicks received the ICV injection of (A) phosphate-buffered saline (PBS), (B) Nesfatin-1 (10 ng), (C) Nesfatin-1 (20 ng) and (D) Nesfatin-1 (40 ng). In experiment 2, (A) PBS, (B) Astressin-B (CRF1/CRF2 receptors antagonist; 30 µg), (C) Nesfatin-1 (40 ng) and (D) Nesfatin-1 + Astressin-B were injected...
December 26, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/29277323/epigenetic-changes-in-the-crh-gene-are-related-to-severity-of-suicide-attempt-and-a-general-psychiatric-risk-score-in-adolescents
#15
Jussi Jokinen, Adrian E Boström, Ali Dadfar, Diana M Ciuculete, Andreas Chatzittofis, Marie Åsberg, Helgi B Schiöth
The aim of this study, comprising 88 suicide attempters, was to identify hypothalamic-pituitary-adrenal (HPA) -axis coupled CpG-sites showing methylation shifts linked to severity of the suicide attempt. Candidate methylation loci were further investigated as risk loci for a general psychiatric risk score in two cohorts of adolescents (cohort 1 and 2). The genome-wide methylation pattern was measured in whole blood using the Illumina Infinium Methylation EPIC BeadChip. Subjects were stratified into high-risk and low-risk groups based on the severity of the suicidal behavior...
December 18, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29275218/myrcia-sylvatica-essential-oil-mitigates-molecular-biochemical-and-physiological-alterations-in-rhamdia-quelen-under-different-stress-events-associated-to-transport
#16
Etiane M H Saccol, Ismael Jerez-Cepa, Giovana M Ourique, Tanise S Pês, Luciane T Gressler, Rosa H V Mourão, Gonzalo Martínez-Rodríguez, Juan M Mancera, Bernardo Baldisserotto, Maria A Pavanato, Juan A Martos-Sitcha
The effects of pre-transport handling and addition of essential oil of Myrcia sylvatica (EOMS) during transport on stress pathways activation in Rhamdia quelen were investigated. Fish (n=400, 25.2±2.9g) were captured in production ponds and transferred to 100-L tank (density 100g L-1). After 24h, 10 fish were sampled (before transport group). The remaining fish were placed in plastic bags (n=30 or 32 fish per bag, density 150g L-1) containing 5L of water (control), ethanol (315μLL-1, vehicle) or EOMS (25 or 35μLL-1), in triplicate, transported for 6h and sampled (n=10 animals per group)...
December 15, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29251255/effects-of-genetic-factors-to-inhaled-corticosteroid-response-in-children-with-asthma-a-literature-review
#17
Huong Duong-Thi-Ly, Ha Nguyen-Thi-Thu, Long Nguyen-Hoang, Hanh Nguyen-Thi-Bich, Timothy J Craig, Sy Duong-Quy
Numerous studies have examined the association between pharmacogenetic effects and the response to inhaled corticosteroids (ICS) in patients with asthma. In fact, several single nucleotide polymorphisms of a number of candidate genes have been identified that might influence the clinical response to ICS in children with asthma. Their direct or indirect effects depend on their role in the inflammatory process in asthma or the anti-inflammatory action of corticosteroids, respectively. Among the genes identified, variants in T-box 21 ( TBX21) and Fc fragment of IgE receptor II ( FCER2) contribute indirectly to the variability in the response to ICS by altering the inflammatory mechanisms in asthma, while other genes such as corticotropin releasing hormone receptor 1 ( CRHR1), nuclear receptor subfamily 3 group C member 1 ( NR3C1), stress induced phosphoprotein 1 ( STIP1), dual specificity phosphatase 1 (DUSP1), glucocorticoid induced 1 (GLCCI1), histone deacetylase 1 (HDAC), ORMDL sphingolipid biosynthesis regulator 3 (ORMDL3), and vascular endothelial growth factors (VEGF) directly affect this variability through the anti-inflammatory mechanisms of ICS...
December 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29248361/leptin-an-adipokine-with-central-importance-in-the-global-obesity-problem
#18
REVIEW
Jeffrey I Mechanick, Shan Zhao, W Timothy Garvey
Leptin has central importance in the global obesity and cardiovascular disease problem. Leptin is principally secreted by adipocytes and acts in the hypothalamus to suppress appetite and food intake, increase energy expenditure, and regulate body weight. Based on clinical translation of specific and networked actions, leptin affects the cardiovascular system and may be a marker and driver of cardiometabolic risk factors with interventions that are actionable by cardiologists. Leptin subnetwork analysis demonstrates a statistically significant role for ethnoculturally and socioeconomically appropriate lifestyle intervention in cardiovascular disease...
December 13, 2017: Global Heart
https://www.readbyqxmd.com/read/29246866/similar-effect-of-crf1-and-crf2-receptor-in-the-basolateral-or-central-nuclei-of-the-amygdala-on-tonic-immobility-behavior
#19
Richard Leandro Spinieli, Christie Ramos Andrade Leite-Panissi
Studies have used paradigms based on animal models to understand human emotional behavior because they appear to be correlated with fear- and anxiety-related defensive patterns in non-human mammals. In this context, tonic immobility (TI) behavior is an innate response associated with extreme threat situations, such as predator attack. Some reports have demonstrated the involvement of corticotropin-releasing factor (CRF) in regulation of the endocrine system, defensive behaviors and behavioral responses to stress...
December 12, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29246185/early-life-adversity-and-long-term-neurobehavioral-outcomes-epigenome-as-a-bridge
#20
REVIEW
Alexander M Vaiserman, Alexander K Koliada
Accumulating evidence suggests that adversities at critical periods in early life, both pre- and postnatal, can lead to neuroendocrine perturbations, including hypothalamic-pituitary-adrenal axis dysregulation and inflammation persisting up to adulthood. This process, commonly referred to as biological embedding, may cause abnormal cognitive and behavioral functioning, including impaired learning, memory, and depressive- and anxiety-like behaviors, as well as neuropsychiatric outcomes in later life. Currently, the regulation of gene activity by epigenetic mechanisms is suggested to be a key player in mediating the link between adverse early-life events and adult neurobehavioral outcomes...
December 16, 2017: Human Genomics
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