keyword
MENU ▼
Read by QxMD icon Read
search

ACTH

keyword
https://www.readbyqxmd.com/read/28942071/the-impact-of-acute-pah-exposure-on-the-toadfish-glucocorticoid-stress-response
#1
Aalekhya Reddam, Edward M Mager, Martin Grosell, M Danielle McDonald
The objective of the present study was to determine whether the polycyclic aromatic hydrocarbons (PAHs) associated with the Deepwater Horizon (DWH) oil spill impacted the stress response of teleost fish. The hypothesis was that intraperitoneal (IP) treatment with PAHs associated with the DWH oil spill or waterborne exposure to DWH oil high energy water-accommodated fraction (HEWAF) would result in the downregulation of the stress response of Gulf toadfish, Opsanus beta, a benthic marine teleost fish that resides in the Gulf of Mexico...
August 26, 2017: Aquatic Toxicology
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
#2
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
#3
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 medial prefrontal cortex (mPFC). However, the influence of infralimbic cortex (IL) projection neurons on 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 1 (vGluT1) mRNA was microinjected into the IL of male rats...
July 25, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938462/stereotactic-radiosurgery-for-cushing-s-disease-results-of-an-international-multicenter-study
#4
Gautam U Mehta, Dale Ding, Mohana Rao Patibandla, Hideyuki Kano, Nathaniel Sisterson, Yan-Hua Su, Michal Krsek, Ahmed M Nabeel, Amr El-Shehaby, Khaled A Kareem, Nuria Martinez-Moreno, David Mathieu, Brendan McShane, Kevin Blas, Douglas Kondziolka, Inga Grills, John Y Lee, Roberto Martinez-Alvarez, Wael A Reda, Roman Liscak, Cheng-Chia Lee, L Dade Lunsford, Mary Lee Vance, Jason P Sheehan
Context: Cushing's disease (CD) due to ACTH-secreting pituitary tumors can be a management challenge. Objective: To better understand the outcomes of stereotactic radiosurgery (SRS) for CD and define its role in management. Design: International, multicenter, retrospective cohort analysis. Setting: Ten medical centers participating in the International Gamma Knife Research Foundation (IGKRF). Patients: Patients with CD with greater than 6 months endocrine follow-up...
August 29, 2017: Journal of Clinical Endocrinology and Metabolism
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
#5
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/28932185/hyperactivity-of-hypothalamic-pituitary-adrenal-axis-due-to-dysfunction-of-the-hypothalamic-glucocorticoid-receptor-in-sigma-1-receptor-knockout-mice
#6
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/28931176/the-role-of-cortisol-acth-ratio-for-screening-of-subclinical-hypercortisolism-in-patients-with-adrenal-incidentalomas
#7
Lele Li, Guoqing Yang, Jingtao Dou, Weijun Gu, Zhaohui Lv, Juming Lu, Yiming Mu
Introduction The cortisol/ACTH ratio was supposed to be helpful in the screening of subclinical hypercortisolism (SHC) in the published literatures. This study assessed the cortisol/ACTH ratio in patients with adrenal incidentaloma (AI) confirmed to have SHC and investigated its role for screening SCS in patients with AI. Methods This descriptive retrospective study included 183 patients with AIs [45 with SHC and 138 with non-functional adenoma (NFA)]. Cortisol and ACTH levels were measured at 8:00, 16:00, and 0:00, and the cortisol/ACTH ratio was calculated...
September 20, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28929506/factitious-acth-dependent-apparent-hypercortisolism-the-problem-with-late-night-salivary-cortisol-measurements-collected-at-home
#8
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/28928236/histone-deacetylase-inhibition-ameliorates-hypertension-and-hyperglycemia-in-a-model-of-cushing-s-syndrome
#9
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/28927673/randomized-single-blind-parallel-clinical-trial-on-efficacy-of-oral-prednisolone-versus-intramuscular-corticotropin-a-12-month-assessment-of-spasm-control-in-west-syndrome
#10
Jithangi Wanigasinghe, Carukshi Arambepola, Shalini Sri Ranganathan, Samanmali Sumanasena
OBJECTIVE: We earlier completed a single-blind, parallel-group, randomized clinical trial to test the null hypothesis that adrenocorticotropic hormone (ACTH) is not superior to high-dose prednisolone for short-term control of West syndrome. We now present long-term follow-up data for spasm control for individuals who completed this earlier trial. METHODS: Infants with untreated West syndrome were randomized to receive 14 days of prednisolone (40 to 60 mg/day) or intramuscular long-acting ACTH (40 to 60 IU every other day)...
August 14, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28919782/inhibitory-effects-of-a-selective-jak2-inhibitor-on-adrenocorticotropic-hormone-production-and-proliferation-of-corticotroph-tumor-att20-cells
#11
Yuko Asari, Kazunori Kageyama, Yuki Nakada, Mizuki Tasso, Shinobu Takayasu, Kanako Niioka, Noriko Ishigame, Makoto Daimon
PURPOSE: The primary cause of Cushing's disease is adrenocorticotropic hormone (ACTH)-producing pituitary adenomas. EGFR signaling induces POMC mRNA-transcript levels and ACTH secretion from corticotroph tumors. The Jak-STAT pathway is located downstream of EGFR signaling; therefore, a Jak2 inhibitor could be an effective therapy for EGFR-related tumors. In this study, we determined the effect of a potent and selective Jak2 inhibitor, SD1029, on ACTH production and proliferation in mouse AtT20 corticotroph tumor cells...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28919299/the-retrotransposon-gag-domain-containing-protein-rgag4-is-an-ikaros-target-in-the-pituitary
#12
Zhongyi Shen, Sylvia L Asa, Shereen Ezzat
Previous studies have established the common and critical involvement of the zinc finger protein Ikaros in lymphoid and pituitary cell development and expansion. Key to the assembly of several transcriptional networks, we have demonstrated up-regulation of Ikaros and its interacting partner the C-terminal Binding Protein (CtBP) in response to hypoxia. This prompted us to explore common transcriptional targets using a chromatin immunoprecipitate (ChIP) screen of DNA from pituitary corticotroph cells. This strategy yielded a finite list of targets common to both transcription factors that included the metalloprotease ADAMTS10...
September 14, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28915118/delayed-diagnosis-of-proopiomelanocortin-pomc-deficiency-with-type-1-diabetes-in-a-9-year-old-girl-and-her-infant-sibling
#13
Elif Ozsu, Allison Bahm
BACKGROUND: Proopiomelanocortin (POMC) protein, encoded by the POMC gene, is the precursor of adrenocorticotropic hormone (ACTH) that is released from the anterior pituitary gland. Homozygous mutations in the POMC gene is associated with hyperphagia, severe and early-onset obesity, adrenal insufficiency, hypopigmentation of the skin and red hair. CASE PRESENTATION: A 9-year-old girl from a consanguineous family of Iraqi origin was diagnosed with type 1 diabetes...
September 15, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28911960/characterization-of-the-adrenocorticotrophic-hormone-induced-mouse-model-of-resistance-to-antidepressant-drug-treatment
#14
Bettadapura N Srikumar, Mahesh Paschapur, Narasimharaju Kalidindi, Bharath Adepu, Manish L Das, Muppana V Sreedhara, Vijaya K Kuchibhotla, Rick L Pieschl, Yu-Wen Li, Durga Shiva Prasad Ega, Justin V Louis, Senthilkumar Murugesan, Pattipati S Naidu, Manjunath Ramarao, Linda J Bristow, Reeba K Vikramadithyan
Approximately 30-60% of patients treated with existing antidepressants fail to achieve remission of depressive symptoms leading to Treatment Resistant Depression (TRD). There is an urgent need to develop novel medications, which is highly limited by the non-availability of relevant animal models with good predictive validity. ACTH administration has been shown to result in the resistance to acute and chronic effects of imipramine. However, the pharmacology of the model and the mechanisms contributing to the resistance are not completely understood...
September 11, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28910955/-the-localization-diagnosis-of-patients-with-adrenocorticotropic-hormone-dependent-cushing-s-syndrome-in-adolescence
#15
S Chen, Z X Pan, L Lu, A L Tong, H Pan, H J Zhu, Y Yao, M Feng, R Z Wang, Z L Lu
Objective: To elucidate the clinical characteristics and localization diagnosis of patients with adrenocorticotropic hormone (ACTH)-dependent Cushing's syndrome (CS) in adolescence. Methods: The clinical data, laboratory examination and localization diagnosis from 35 patients aged less than 18 years old with adolescent CS who were treated at Peking Union Medical College Hospital between January 1990 and March 2012 were analyzed. Results: There were 29 cases of Cushing's disease (CD) and 6 cases of ectopic ACTH syndrome (EAS)...
September 12, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28905718/physiologic-behavioral-and-histologic-responses-to-various-euthanasia-methods-in-c57bl-6ntac-male-mice
#16
Gregory P Boivin, Michael A Bottomley, Patricia A Schiml, Lori Goss, Nadja Grobe
Rodent euthanasia using exposure to increasing concentrations of CO2 has come under scrutiny due to concerns of potential pain during the euthanasia process. Alternatives to CO2, such as isoflurane and barbiturates, have been proposed as more humane methods of euthanasia. In this study, we examined 3 commonly used euthanasia methods in mice: intraperitoneal injection of pentobarbital-phenytoin solution, CO2 inhalation, and isoflurane anesthesia followed by CO2 inhalation. We hypothesized that pentobarbital-phenytoin euthanasia would cause fewer alterations in cardiovascular response, result in less behavioral evidence of pain or stress, and produce lower elevations in ACTH than would the isoflurane and CO2 methods, which we hypothesized would not differ in regard to these parameters...
January 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28904009/diagnosis-of-endocrine-disease-18-oxocortisol-and-18-hydroxycortisol-is-there-clinical-utility-of-these-steroids
#17
Jacques Lenders, Tracy A Williams, Martin Reincke, Celso E Gomez-Sanchez
Since the early nineteen eighties 18-hydroxycortisol and 18-oxocortisol have attracted attention when it was shown that the urinary excretion of these hybrid steroids was increased in primary aldosteronism. The development and more widespread use of specific assays has improved the understanding of their role in the (patho)physiology of adrenal disorders. The adrenal site of synthesis is not fully understood although it is clear that for the synthesis of 18-hydroxycortisol and 18-oxocortisol the action of both aldosterone synthase (zona glomerulosa) and 17α-hydroxylase (zona fasciculata) is required with cortisol as main substrate...
September 13, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28899903/socs3-expression-in-sf1-cells-regulates-adrenal-differentiation-and-exercise-performance
#18
João Ab Pedroso, Pedro Omori Ribeiro de Mendonça, Marco As Fortes, Igor Tomaz, Vitor L Pecorali, Thais B Auricino, Ismael C Costa, Leandro B Lima, Isadora C Furigo, Debora N Bueno, Angela M Ramos-Lobo, Claudimara Ferini Pacicco Lotfi, Jose Donato
Many hormones/cytokines are secreted in response to exercise and cytokine signaling may play a pivotal role in the training adaptations. To investigate the importance of cytokine signaling during vertical ladder climbing, a resistance exercise model, we produced mice lacking SOCS3 protein exclusively in steroidogenic factor-1 (SF1) cells (SF1 Socs3 KO mice). SF1 expression is found in steroidogenic cells of the adrenal cortex and gonads, as well as in neurons of the ventromedial nucleus of the hypothalamus...
September 12, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28895465/paraneoplastic-cushing-syndrome-case-series-and-review-of-the-literature
#19
Annelies Deldycke, Christel Haenebalcke, Youri Taes
OBJECTIVES: Paraneoplastic Cushing syndrome is a rare condition, representing a small fraction of the adrenocorticotropic hormone (ACTH)-dependent cases of Cushing syndrome Methods: Four case descriptions and literature review, highlighting the diagnostic challenges and treatment options are presented. RESULTS: Different tumor types can be associated with ectopic ACTH secretion. The most common types are bronchial carcinoids and small cell lung carcinoma (SCLC)...
September 12, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28895001/regulation-of-hypothalamo-pituitary-adrenocortical-responses-to-stressors-by-the-nucleus-of-the-solitary-tract-dorsal-vagal-complex
#20
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
keyword
keyword
16858
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"