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Glucocorticoid resistance

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https://www.readbyqxmd.com/read/29339763/glucocorticoid-receptor-gr%C3%AE-regulates-glucocorticoid-induced-ocular-hypertension-in-mice
#1
Gaurang C Patel, Yang Liu, J Cameron Millar, Abbot F Clark
Prolonged glucocorticoid (GC) therapy can cause GC-induced ocular hypertension (OHT), which if left untreated progresses to iatrogenic glaucoma and permanent vision loss. The alternatively spliced isoform of glucocorticoid receptor GRβ acts as dominant negative regulator of GR activity, and it has been shown that overexpressing GRβ in trabecular meshwork (TM) cells inhibits GC-induced glaucomatous damage in TM cells. The purpose of this study was to use viral vectors to selectively overexpress the GRβ isoform in the TM of mouse eyes treated with GCs, to precisely dissect the role of GRβ in regulating steroid responsiveness...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334750/-remission-of-steroid-resistant-stills-disease-treated-with-anakinra-evidenced-by-fdg-pet-ct-examination-case-report
#2
Zdeněk Adam, Jana Skřičková, Milan Krtička, Zdeněk Řehák, Renata Koukalová, Andrea Šprláková, Marta Krejčí, Luděk Pour, Zdenka Adamová, Eva Pourová, Zdeněk Král
After elimination of infectious causes, neoplastic causes and the systemic autoimmune disease of connective tissue, a patient with high fevers over 39 °C was diagnosed with Stills disease. High doses of prednisone led to resolution of symptoms, however after reducing the doses of prednisone to 15 mg, high fevers over 39 °C returned, as well as joint pains. The high doses of prednisone led to decompensation of diabetes mellitus even with 4 daily insulin dosages. Therefore it was proceeded to regular subcutaneous administration of anakinra once a day...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29328462/serum-and-glucocorticoid-regulated-kinase-1-sgk1-is-a-predictor-of-poor-prognosis-in-non-small-cell-lung-cancer-and-its-dynamic-pattern-following-treatment-with-sgk1-inhibitor-and-%C3%AE-ray-irradiation-was-elucidated
#3
Zhiyuan Tang, Qin Shen, Hao Xie, Zhu Zhou, Guanglin Shi, Caixin Zhang, Anaz Mohammed, Yi Wu, Songshi Ni, Xiaoyu Zhou
The tumor suppressor gene p53 and its dynamic patterns have caused widespread attention in the field of cancer research. Serum and glucocorticoid-regulated kinase 1 (SGK1) with features of serine/threonine kinase activity, which also contributes to the structural and functional similarities with the AKT family of kinases, is a key enzyme in the regulation of immune responses in tumor cells, and SGK1 was noted to be expressed in close relation to p53 protein levels, and there exists a negative feedback pathway between intracellular SGK1 and p53...
January 3, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29321413/remission-of-refractory-ascites-and-discontinuation-of-hemodialysis-after-additional-rituximab-to-long-term-glucocorticoid-therapy-in-a-patient-with-tafro-syndrome
#4
Hanako Tsurumi, Yoshihide Fujigaki, Tadashi Yamamoto, Risa Iino, Kei Taniguchi, Michito Nagura, Shigeyuki Arai, Yoshifuru Tamura, Tatsuru Ota, Shigeru Shibata, Fukuo Kondo, Nozomu Kurose, Yasufumi Masaki, Shunya Uchida
Thrombocytopenia, ascites, myelofibrosis, renal dysfunction, and organomegaly (TAFRO) syndrome is a newly recognized but rare disease, and its treatment has not yet been established. We reported a 50-year-old woman with TAFRO syndrome diagnosed 2 years after the initial symptoms of a fever, fatigue, epigastric pain, edema, ascites, lymphadenopathy, thrombocytopenia and renal insufficiency. The patient showed refractory ascites and required hemodialysis under corticosteroid mono-therapy for suspected immune-mediated disease but was successfully treated with additive rituximab, resulting in improvement in her laboratory data, the withdrawal of hemodialysis and the disappearance of ascites...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29319449/management-and-closure-of-multiple-large-cutaneous-lesions-in-a-juvenile-cat-with-severe-acquired-skin-fragility-syndrome-secondary-to-iatrogenic-hyperadrenocorticism
#5
C Noël McKnight, Linda J Lew, David A Gamble
CASE DESCRIPTION A 13-month-old castrated male cat was evaluated for a large, spontaneously developed cutaneous laceration over the left scapular region. The cat had a history of severe gingivostomatitis, conjunctivitis, giardiasis, and feline herpesvirus infection and had received systemic glucocorticoid treatment for 7 weeks prior to evaluation. CLINICAL FINDINGS Physical examination revealed a 10 × 7-cm full-thickness cutaneous laceration over the left scapular region, extremely thin skin, crusts over the dorsal aspect of the neck and base of the skull, medially curling pinnae, and moderate gingivostomatitis...
January 15, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29312638/coregulator-profiling-of-the-glucocorticoid-receptor-in-lymphoid-malignancies
#6
Dorien Clarisse, Jonathan Thommis, Karlien Van Wesemael, René Houtman, Dariusz Ratman, Jan Tavernier, Fritz Offner, Ilse Beck, Karolien De Bosscher
Coregulators cooperate with nuclear receptors, such as the glucocorticoid receptor (GR), to enhance or repress transcription. These regulatory proteins are implicated in cancer, yet, their role in lymphoid malignancies, including multiple myeloma (MM) and acute lymphoblastic leukemia (ALL), is largely unknown. Here, we report the use and extension of the microarray assay for real-time nuclear receptor coregulator interactions (MARCoNI) technology to detect coregulator associations with endogenous GR in cell lysates...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29311651/identification-of-a-novel-gene-regulating-amygdala-mediated-fear-extinction
#7
Ozge Gunduz-Cinar, Emma Brockway, Lauren Lederle, Troy Wilcox, Lindsay R Halladay, Ying Ding, Hyunjung Oh, Erica F Busch, Katie Kaugars, Shaun Flynn, Aaron Limoges, Olena Bukalo, Kathryn P MacPherson, Sophie Masneuf, Courtney Pinard, Etienne Sibille, Elissa J Chesler, Andrew Holmes
Recent years have seen advances in our understanding of the neural circuits associated with trauma-related disorders, and the development of relevant assays for these behaviors in rodents. Although inherited factors are known to influence individual differences in risk for these disorders, it has been difficult to identify specific genes that moderate circuit functions to affect trauma-related behaviors. Here, we exploited robust inbred mouse strain differences in Pavlovian fear extinction to uncover quantitative trait loci (QTL) associated with this trait...
January 8, 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29306773/midlife-stress-alters-memory-and-mood-related-behaviors-in-old-age-role-of-locally-activated-glucocorticoids
#8
Nicola Wheelan, Christopher J Kenyon, Anjanette P Harris, Carolynn Cairns, Emad Al Dujaili, Jonathan R Seckl, Joyce L W Yau
Chronic exposure to stress during midlife associates with subsequent age-related cognitive decline and may increase the vulnerability to develop psychiatric conditions. Increased hypothalamic-pituitary-adrenal (HPA) axis activity has been implicated in pathogenesis though any causative role for glucocorticoids is unestablished. This study investigated the contribution of local glucocorticoid regeneration by the intracellular enzyme 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1), in persisting midlife stress-induced behavioral effects in mice...
December 23, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29290923/angiopoietin-like-4-in-glucocorticoid-induced-insulin-resistance
#9
EDITORIAL
Rebecca A Lee, Jen-Chywan Wang
No abstract text is available yet for this article.
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29286523/myastenia-and-small-doses-of-ionizing-radiation-experience-of-successful-use-of-rituximab-for-treatment-of-an-irradiated-with-myasthenia-gravis
#10
V I Kravchenko, A A Chumak, K M Loganovsky, I S Diagil, V F Kuzmenko
A clinical case of the rituximab («Rituksim», «Mabthera») use to treat a man affected by the Chornobyl NPP acci dent with malignant resistant form of myasthenia gravis in conjunction with chronic mixed infection by Toxoplasma, Epstein Barr virus, Cytomegalovirus and Herpes simplex virus is described. In the dynamics of two year's observa tion the clinical efficacy of monoclonal antibodies was shown as the main symptoms stabilization and reducing doses of glucocorticoid and anticholinergic therapy. The positive effect was marked in the nearest and remote peri ods...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29277704/prevention-of-chronic-immobilization-stress-induced-enhanced-expression-of-glucocorticoid-receptors-in-the-prefrontal-cortex-by-inactivation-of-basolateral-amygdala
#11
Sunil Jamuna Tripathi, Suwarna Chakraborty, B N Srikumar, T R Raju, B S Shankaranarayana Rao
Repeated exposure to stress precipitates anxiety, depression and cognitive deficits. Stress-induced activation of the hypothalamus-pituitary-adrenal (HPA) axis is modulated by the prefrontal cortex (PFC) and basolateral amygdala (BLA). It is well established that BLA positively regulates the HPA axis and undergoes hypertrophy following chronic immobilization stress (CIS). However, it is not known whether inactivation of the BLA can modulate the stress-induced changes in the expression of glucocorticoid receptors (GRs) in the PFC...
December 23, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/29261006/feeding-obese-diabetic-mice-a-genistein-diet-induces-thermogenic-and-metabolic-change
#12
Schuyler Rockwood, Tom L Broderick, Layla Al-Nakkash
Obesity is associated with elevated plasma levels of glucocorticoids and reduced levels of thyroid hormones, both known to effect food intake and energy expenditure. Furthermore, tissue specific glucocorticoid metabolism is altered in obesity, increasing insulin resistance and cardiometabolic risk. The goal of this study was to examine whether these metabolic disturbances can be prevented with the isoflavone genistein in the ob/ob mouse, a model that resembles the phenotype in human obesity. Male ob/ob mice, aged 5 weeks, were fed either a genistein-rich diet (600 mg/kg) or a genistein-free diet for 4 weeks...
December 20, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29251033/significant-improvement-of-bone-mineral-density-by-denosumab-without-bisphosphonate-pre-treatment-in-glucocorticoid-induced-osteoporosis
#13
Takako Suzuki, Yukio Nakamura, Hiroyuki Kato
Objective The aim of this study was to evaluate differences in outcomes of denosumab for a year with or without bisphosphonate (BP) pre-treatment in patients with glucocorticoid-induced osteoporosis (GIO). Methods Forty-eight female patients with GIO with low bone mineral density (T score of BMD; less than -3.0SD) were retrospectively enrolled and classified into the following 2 groups: 1) GIO with BP pre-treatment (BP pre-treated group; n = 24) and 2) GIO without BP treatment (BP pre-untreated group; n = 24)...
December 18, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/29241532/glucocorticoid-receptor-binding-induces-rapid-and-prolonged-large-scale-chromatin-decompaction-at-multiple-target-loci
#14
Alasdair W Jubb, Shelagh Boyle, David A Hume, Wendy A Bickmore
Glucocorticoids act by binding to the glucocorticoid receptor (GR), which binds to specific motifs within enhancers of target genes to activate transcription. Previous studies have suggested that GRs can promote interactions between gene promoters and distal elements within target loci. In contrast, we demonstrate here that glucocorticoid addition to mouse bone-marrow-derived macrophages produces very rapid chromatin unfolding detectable by fluorescence in situ hybridization (FISH) at loci associated with GR binding...
December 12, 2017: Cell Reports
https://www.readbyqxmd.com/read/29235301/-advantages-and-problems-of-traditional-chinese-medicine-in-treatment-of-acute-pharyngitis
#15
Xia Zhang, Yan-Ming Xie, Guang-Xi Li, Yang Gao, Yuan-Chen Zhao, Jing-Jing Tang, Xiao-Yan Yao, Meng Li
This paper systematically studies relevant literatures at home and abroad in recent years. China National Knowledge Internet (CNKI) was used to collect the literatures for acute pharyngitis treated with traditional Chinese medicine from January 1, 2006, to December 31, 2016, and the bibliometric method was employed for statistical analysis. A total of 493 papers were preliminarily selected. According to the inclusion criteria and exclusion criteria, 182 eligible articles were selected. According to the evaluation and analysis of the literatures, the Guidelines for Clinical Research of New Drugs is currently used as the common standards for the diagnosis and treatment of acute pharyngitis; Chinese patent medicines are the main traditional Chinese medicine for treating this disease; Decoctions for treatment of this disease include Lonicerae Japonicae Flos, Scutellariae Radix, Platycodonis Radix, Forsythiae Fructus, Glycyrrhizae Radix et Rhizoma, Scrophdlariae Radix, Isatidis Radix, and Ophiopogonis Radix; The bloodletting puncture is the common external therapy...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29230949/glucocorticoid-receptor-activation-is-associated-with-increased-resistance-to-heat-induced-hyperthermia-and-injury
#16
Yifan Chen, Tianzheng Yu
AIM: Anti-inflammatory mediators likely play a key role in maintaining thermal homeostasis and providing protection against heat stress. The aim of this study was to investigate the association between activation of the glucocorticoid receptor (GR) and resistance to heat-induced hyperthermia and injury. METHODS: Effects of heat exposure on core body temperature, muscle GR phosphorylation status and subcellular expression were examined in control mice and thermal acclimation (TA)-exposed mice...
December 12, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/29228959/micro-structural-bone-changes-in-early-rheumatoid-arthritis-persist-over-1-year%C3%A2-despite-use-of-disease-modifying-anti-rheumatic-drug-therapy
#17
Lynne M Feehan, Linda L Li, Heather A McKay
BACKGROUND: We used High Resolution - peripheral Quantitative CT (HR-pQCT) imaging to examine peri-articular bone quality in early rheumatoid arthritis (RA) and explore whether bone quality improved over 12-months in individuals receiving care consistent with practice guidelines. METHODS: A 1-year longitudinal cohort study (Baseline and 12-months) evaluating individuals with early RA compared to age/sex-matched peers. Personal demographic and health and lifestyle information were collected for all...
December 11, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29226079/alteration-of-glucocorticoid-receptors-and-exacerbation-of-inflammation-during-lytic-cytomegalovirus-infection-in-thp-1-cells
#18
Shujun Wang, Yaling Dou, Hong Yang, Anping Ni, Rui Zhang, Jiaming Qian
Cytomegalovirus (CMV) infection is associated with glucocorticoid resistance in ulcerative colitis (UC) and may exacerbate the disease course. However, the underlying pathogenicity remains unclear. The aim of this study was to explore possible underlying mechanisms during CMV latency and lytic infection in the human mononuclear cell line THP-1. Latent and activated CMV infection cell models were established. We performed real-time PCR and western blotting to examine changes in glucocorticoid receptors (GRs) during CMV latency and activation...
December 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/29223281/human-studies-on-hypothalamo-pituitary-adrenal-hpa-axis
#19
REVIEW
Kamani Liyanarachchi, Richard Ross, Miguel Debono
The daily rhythm of the hypothalamo-pituitary-adrenal (HPA) axis is regulated by the central clock in the suprachiasmatic nucleus. Cortisol, a glucocorticoid, acts as a secondary messenger between the central clock and the peripheral tissues. Changes in clock time, as seen in shift workers, alters the HPA axis and results in metabolic disturbances associated with ill health. Depression, anorexia nervosa and obstructive sleep apnoea, are associated with cortisol rhythm phase shifts and increased cortisol exposure...
October 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29214142/molecular-mechanisms-of-enzalutamide-resistance-in-prostate-cancer
#20
REVIEW
Zoran Culig
Purpose of Review: Compensatory mechanisms leading to increased androgen receptor expression and activity after androgen ablation or anti-androgen treatment have been identified in prostate cancer. After hydroxyflutamide and bicalutamide were used in therapy of prostate cancer over many years, novel anti-androgen enzalutamide showed improved clinical activity. However, enzalutamide resistance develops over a certain time period, and molecular mechanisms responsible for this process are heterogeneous...
2017: Current Molecular Biology Reports
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