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https://www.readbyqxmd.com/read/28933291/pharmacotranscriptomic-biomarkers-in-glucocorticoid-treatment-of-pediatric-inflammatory-bowel-disease
#1
Marianna Lucafò, Biljana Stankovic, Nikola Kotur, Alessia Di Silvestre, Stefano Martelossi, Alessandro Ventura, Branka Zukic, Sonya Pavlovic, Giuliana Decorti
Pharmacotranscriptomics aims to reach more accurate drug dosing based on interindividual transcriptome variations. Here, we provide an overview of RNA biomarkers that could predict the response to glucocorticoids (GCs), considered the standard for treatment of inflammatory bowel diseases (IBD), both in adult and pediatric patients. Although new biological agents are very effective in the IBD treatment, GCs are still widely used for induction of remission in IBD patients with moderate to severe disease. It is important to identify patients that are poor responders to GCs therapy, because suboptimal response is frequent and associated with various side effects...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28933275/a-case-of-inappropriate-self-medication-compounded-with-prescribing-vis-%C3%A3-vis-dispensing-errors-and-the-hazardous-consequence
#2
Sukalyan Saha Roy, Anupam Roy, Ranjita Santra Dhali, Chiranjib Bagchi, Gautam Banerjee, Santanu K Tripathi
INTRODUCTION Dispensing error, a type of medication error, is not infrequent but seldom reported. Self-medication behavior appears to be a commonplace. And when it is ignorant it may prove dangerous. We report here a case of acute vesico-bullous eruptions from methotrexate in a patient of psoriasis who indulged in self-medication and was wrongfully dispensed higher doses of methotrexate. CASE DESCRIPTION A 50-year-old gentleman presented to the dermatology OPD with erythematous, vesico-bullar lesions spread all over the body including both limbs and scalp, with oral mucosal involvement without any history of fever...
September 19, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28932959/the-role-and-regulation-of-the-11-beta-hydroxysteroid-dehydrogenase-enzyme-system-in-patients-with-inflammatory-bowel-disease
#3
M Hussey, G Holleran, S Smith, Mark Sherlock, D McNamara
INTRODUCTION: Glucocorticoids are known to modulate a number of immunological responses including counteracting inflammation. Within tissues expressing the glucocorticoid and mineralocorticoid receptors including the colon, glucocorticoid metabolism is regulated by the isoenzymes of 11ß-hydroxysteroid dehydrogenase (11β-HSD). 11β-HSD1 acts as an oxidoreductase converting inactive cortisone into active cortisol, while 11β-HSD2 acts as a dehydrogenase converting active cortisol to inactive cortisone...
September 20, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28932400/mediastinal-peripheral-t-cell-lymphoma-diagnosed-by-repeated-biopsies-after-an-initial-diagnosis-of-fibrosing-mediastinitis
#4
Naoko Kakuta, Mitsuhiro Sumitani, Arata Sugitani, Kenji Nakahama, Yuzo Miki, Seichi Syoji
We report a case of mediastinal peripheral T-cell lymphoma not otherwise specified (PTCL-NOS) diagnosed by repeated biopsies. A 44-year-old man was admitted to our hospital with a 2-week history of facial swelling, neck distension, and dyspnoea on exertion. Computed tomography of the chest showed a mediastinal mass. Initial needle biopsy and video-assisted thoracoscopic biopsy revealed the pathological diagnosis of fibrosing mediastinitis (FM). Glucocorticoid therapy (prednisolone) was temporarily effective in reducing tumour size...
November 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28932185/hyperactivity-of-hypothalamic-pituitary-adrenal-axis-due-to-dysfunction-of-the-hypothalamic-glucocorticoid-receptor-in-sigma-1-receptor-knockout-mice
#5
Tingting Di, Suyun Zhang, Juan Hong, Tingting Zhang, Ling Chen
Sigma-1 receptor knockout (σ1R-KO) mice exhibit a depressive-like phenotype. Because σ1R is highly expressed in the neuronal cells of hypothalamic paraventricular nuclei (PVN), this study investigated the influence of σ1R deficiency on the regulation of the hypothalamic-pituitary-adrenocortical (HPA) axis. Here, we show that the levels of basal serum corticosterone (CORT), adrenocorticotropic hormone (ACTH) and corticotrophin releasing factor (CRF) as well as the level of CRF mRNA in PVN did not significantly differ between adult male σ1R-KO mice and wild-type (WT) mice...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28931750/adrenal-gipr-expression-and-chromosome-19q13-microduplications-in-gip-dependent-cushing-s-syndrome
#6
Anne-Lise Lecoq, Constantine A Stratakis, Say Viengchareun, Ronan Chaligné, Lucie Tosca, Vianney Deméocq, Mirella Hage, Annabel Berthon, Fabio R Faucz, Patrick Hanna, Hadrien-Gaël Boyer, Nicolas Servant, Sylvie Salenave, Gérard Tachdjian, Clovis Adam, Vanessa Benhamo, Eric Clauser, Anne Guiochon-Mantel, Jacques Young, Marc Lombès, Isabelle Bourdeau, Dominique Maiter, Antoine Tabarin, Jérôme Bertherat, Hervé Lefebvre, Wouter de Herder, Estelle Louiset, André Lacroix, Philippe Chanson, Jérôme Bouligand, Peter Kamenický
GIP-dependent Cushing's syndrome is caused by ectopic expression of glucose-dependent insulinotropic polypeptide receptor (GIPR) in cortisol-producing adrenal adenomas or in bilateral macronodular adrenal hyperplasias. Molecular mechanisms leading to ectopic GIPR expression in adrenal tissue are not known. Here we performed molecular analyses on adrenocortical adenomas and bilateral macronodular adrenal hyperplasias obtained from 14 patients with GIP-dependent adrenal Cushing's syndrome and one patient with GIP-dependent aldosteronism...
September 21, 2017: JCI Insight
https://www.readbyqxmd.com/read/28931736/the-influence-of-stress-hormones-and-aggression-on-cooperative-behaviour-in-subordinate-meerkats
#7
Ben Dantzer, Ines Braga Goncalves, Helen C Spence-Jones, Nigel C Bennett, Michael Heistermann, Andre Ganswindt, Constance Dubuc, David Gaynor, Marta B Manser, Tim H Clutton-Brock
In cooperative breeders, aggression from dominant breeders directed at subordinates may raise subordinate stress hormone (glucocorticoid) concentrations. This may benefit dominants by suppressing subordinate reproduction but it is uncertain whether aggression from dominants can elevate subordinate cooperative behaviour, or how resulting changes in subordinate glucocorticoid concentrations affect their cooperative behaviour. We show here that the effects of manipulating glucocorticoid concentrations in wild meerkats (Suricata suricatta) on cooperative behaviour varied between cooperative activities as well as between the sexes...
September 27, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28930864/neural-correlates-to-the-increase-in-maximal-force-after-dexamethasone-administration
#8
Stéphane Baudry, Alberto Botter, Jacques Duchateau, Marco A Minetto
PURPOSE: This study investigated the effects of short-term glucocorticoid administration on voluntary activation and intracortical inhibitory and facilitatory circuits. METHODS: Seventeen healthy men participated in a pseudo randomized double-blind study to receive either dexamethasone (8 mg·d, n = 9 subjects) or placebo (n = 8 subjects) for 7 days. The ankle dorsiflexion torque, corresponding electromyography (EMG) of the tibialis anterior, and voluntary activation assessed by the interpolated twitch method using transcranial magnetic stimulation (TMS) were measured during a maximal voluntary contraction (MVC)...
September 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28930614/inter-species-functional-interactome-of-nuclear-steroid-receptors-r1
#9
Styliani A Geronikolou, Athanasia Pavlopoulou, Christina Kanaka-Gantenbein, George Chrousos
Steroids exert their actions by binding to the glucocorticoid, mineralocorticoid, androgen, estrogen and progesterone classes of receptors. Despite an exponential increase in our knowledge of steroid receptors, their interactions with other molecules, subcellular location and functions still need further elucidation. To unravel the mechanism(s) of action of the steroid hormones, as well as the function of their cognate nuclear receptors, an interaction network was created (henceforth referred to as "R1 Interactome")- illustrating that robust interactions have been preserved in rodents, frog, zebra fish and drosophila...
January 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/28930508/glucocorticoid-sparing-of-benralizumab-in-asthma
#10
LETTER
Chao Cao, Xue Kong, Xiaoping Huang
New England Journal of Medicine, Volume 377, Issue 12, Page 1204-1205, September 2017.
September 21, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28930507/glucocorticoid-sparing-of-benralizumab-in-asthma
#11
LETTER
(no author information available yet)
No abstract text is available yet for this article.
September 21, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28929506/factitious-acth-dependent-apparent-hypercortisolism-the-problem-with-late-night-salivary-cortisol-measurements-collected-at-home
#12
G A Kline, J D Buse, J G Van Der Gugten, D T Holmes, A C Chin, S M H Sadrzadeh
Cushing's Syndrome (CS) is critical to identify because of the numerous and sometimes irreversible sequelae. Surreptitious glucocorticoid use is usually a straightforward consideration in the Cushingoid patient having suppressed ACTH levels, in the absence of adrenal mass or hyperplasia, and in whom screening tests for CS have unexpectedly low or high results depending on the specific steroid used and vulnerability of the assay employed to analytical cross-reactivity. We present a case of a patient with factitious hypercortisolism without suppressed ACTH...
September 20, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28928988/the-effect-of-glucocorticoid-and-glucocorticoid-receptor-interactions-on-brain-spinal-cord-and-glial-cell-plasticity
#13
REVIEW
Kathryn M Madalena, Jessica K Lerch
Stress, injury, and disease trigger glucocorticoid (GC) elevation. Elevated GCs bind to the ubiquitously expressed glucocorticoid receptor (GR). While GRs are in every cell in the nervous system, the expression level varies, suggesting that diverse cell types react differently to GR activation. Stress/GCs induce structural plasticity in neurons, Schwann cells, microglia, oligodendrocytes, and astrocytes as well as affect neurotransmission by changing the release and reuptake of glutamate. While general nervous system plasticity is essential for adaptation and learning and memory, stress-induced plasticity is often maladaptive and contributes to neuropsychiatric disorders and neuropathic pain...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28928654/adenosine-receptor-stimulation-improves-glucocorticoid-induced-osteoporosis-in-a-rat-model
#14
Gabriele Pizzino, Natasha Irrera, Federica Galfo, Giacomo Oteri, Marco Atteritano, Giovanni Pallio, Federica Mannino, Angelica D'Amore, Enrica Pellegrino, Federica Aliquò, Giuseppe P Anastasi, Giuseppina Cutroneo, Francesco Squadrito, Domenica Altavilla, Alessandra Bitto
Glucocorticoid-induced osteoporosis (GIO) is a secondary cause of bone loss. Bisphosphonates approved for GIO, might induce jaw osteonecrosis; thus additional therapeutics are required. Adenosine receptor agonists are positive regulators of bone remodeling, thus the efficacy of adenosine receptor stimulation for treating GIO was tested. In a preventive study GIO was induced in Sprague-Dawley rats by methylprednisolone (MP) for 60 days. Animals were randomly assigned to receive polydeoxyribonucleotide (PDRN), an adenosine A2 receptor agonist, or PDRN and DMPX (3,7-dimethyl-1-propargylxanthine, an A2 antagonist), or vehicle (0...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28928407/correlation-between-polymorphisms-of-the-nr3c1-gene-and-glucocorticoid-effectiveness-in-patients-with-pemphigus-vulgaris
#15
Si-Yue Fang, Chun-Lei Li, Xiao-Song Liu, Feng Chen, Hong Hua
Glucocorticoid (GC) resistance is the major obscule in the treatment of pemphigus vulgaris (PV) for both patients and clinicans with unclear mechanism. A hypotheis for this resistance is the mutations or polymorphisms present in the nuclear receptor subfamily 3, group C, member 1 (NR3C1) gene that encodes receptors for steroid hormones. This study aimed to investigate the association between NR3C1 gene polymorphisms and GC effectiveness in PV patients. 94 PV patients (64 GC-sensitive and 30 GC-resistant) and 100 healthy volunteers were enrolled in this case-control study...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28928247/endogenous-glucocorticoid-signaling-in-chondrocytes-attenuates-joint-inflammation-and-damage
#16
Jinwen Tu, Shihani Stoner, Phillip D Fromm, Tingyu Wang, Di Chen, Jan Tuckermann, Mark S Cooper, Markus J Seibel, Hong Zhou
Previous studies demonstrated that endogenous glucocorticoid signaling in osteoblasts promotes inflammation in murine immune arthritis. The current study determined whether disruption of endogenous glucocorticoid signaling in chondrocytes also modulates the course and severity of arthritis. Tamoxifen-inducible chondrocyte-targeted glucocorticoid receptor knockout (chGRKO) mice were generated by breeding GR(flox/flox) mice with tamoxifen-inducible Collagen 2a1 Cre mice (Col2a1-CreER(T2)). Antigen-induced arthritis (AIA) and K/BxN serum transfer-induced arthritis (STIA) were induced in both chGRKO mice and their Cre-negative GR(flox/flox) littermates [wild type (WT)]...
September 19, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28928236/histone-deacetylase-inhibition-ameliorates-hypertension-and-hyperglycemia-in-a-model-of-cushing-s-syndrome
#17
Hae-Ahm Lee, Seol-Hee Kang, Mina Kim, Eunjo Lee, Hyun-Min Cho, Eun-Kyung Moon, Inkyeom Kim
Cushing's syndrome (CS) caused by hypercortisolism is occasionally accompanied by metabolic disorders such as hypertension, diabetes mellitus (DM), dyslipidemia and central obesity. Thus, morbidity and mortality, observed in cardiovascular disease, are elevated in patients with CS. We hypothesized that HDAC inhibition (HDACi) decreased transcriptional activity of glucocorticoid receptor (GR), which ameliorates hypertension and hyperglycemia in patients with CS. To establish an animal model of hypercortisolism, Sprague-Dawley rats were infused with adrenocorticotropic hormone (ACTH, 40 ng/day) or dexamethasone (Dex, 10 μg/day) via osmotic minipumps for 4 weeks...
September 19, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28927900/expression-of-glucocorticoid-receptor-is-associated-with-aggressive-primary-endometrial-cancer-and-increases-from-primary-to-metastatic-lesions
#18
Ingvild L Tangen, Jennifer Taylor Veneris, Mari K Halle, Henrica M Werner, Jone Trovik, Lars A Akslen, Helga B Salvesen, Suzanne D Conzen, Gini F Fleming, Camilla Krakstad
BACKGROUND: Glucocorticoid receptor (GR) has emerged as an important steroid nuclear receptor in hormone dependent cancers, however few data are available regarding a potential role of GR in endometrial cancer. The aim of this study was to investigate expression of GR in primary and metastatic endometrial cancer lesions, and to assess the relationship between GR expression and clinical and histopathological variables and survival. METHODS: Expression of GR was investigated by IHC in 724 primary tumors and 289 metastatic lesions (from 135 patients), and correlations with clinical and histopathological data and survival were explored...
September 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28927573/sex-differences-in-early-life-programming-of-the-hypothalamic-pituitary-adrenal-axis-in-humans
#19
REVIEW
Robert M Gifford, Rebecca M Reynolds
Increasing evidence supports fetal glucocorticoid exposure with associated altered offspring hypothalamic-pituitary-adrenal (HPA) axis activity as a key mechanism linking early life events with later life disease. Alterations in HPA axis activity are linked to a range of cardiometabolic and psychiatric diseases. As many of these diseases manifest sex differences in presentation we review the evidence for programmed sex-differences in the HPA axis. Available literature suggests vulnerability of the female HPA axis to prenatal stressors with female offspring demonstrating increased HPA axis reactivity...
September 15, 2017: Early Human Development
https://www.readbyqxmd.com/read/28926522/bos-is-associated-with-increased-cytotoxic-proinflammatory-cd8-t-nkt-like-and-nk-cells-in-the-small-airways
#20
Greg Hodge, Sandra Hodge, Aeneas Yeo, Phan Nguyen, Emily Hopkins, Chien-Li Holmes-Liew, Paul N Reynolds, Mark Holmes
BACKGROUND: Immunosuppression therapy after lung transplantation fails to prevent bronchiolitis obliterans syndrome (BOS) in many patients, primarily a disease of the small airways. We have reported that BOS is associated with a lack of suppression of cytotoxic mediators, and proinflammatory cytokines, in peripheral blood T, NKT-like (particularly CD8+) and NK cells. We also showed a loss of glucocorticoid receptor (GCR) in proinflammatory lymphocytes after transplant. It is unknown whether these proinflammatory lymphocytes target the small and/or large airways in BOS...
October 2017: Transplantation
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