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https://www.readbyqxmd.com/read/29667746/an-integrative-approach-combining-passive-sampling-bioassays-and-effect-directed-analysis-to-assess-the-impact-of-wastewater-effluent
#1
Manoj Sonavane, Jennifer E Schollée, Anita O Hidasi, Nicolas Creusot, François Brion, Marc J-F Suter, Juliane Hollender, Selim Aït-Aïssa
Wastewater treatment plant (WWTP) effluents are major sources of endocrine disrupting chemicals (EDCs) and of other chemicals of toxicological concern for the aquatic environment. In this study, we used an integrated strategy combining passive sampling (Chemcatcher®), developmental toxicity and mechanism-based in vitro and in vivo bioassays to monitor the impacts of a WWTP on a river. In vitro screening revealed the WWTP effluent as a source of estrogen (ER), glucocorticoid (GR), aryl hydrocarbon (AhR) receptor mediated activities, impacting the downstream river site where significant activities were also measured, albeit to a lesser extent than in the effluent...
April 18, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29667320/flotillin-1-interacts-with-the-serotonin-transporter-and-modulates-chronic-corticosterone-response
#2
Sonali N Reisinger, Eryan Kong, Barbara Molz, Thomas Humberg, Spyros Sideromenos, Ana Cicvaric, Thomas Steinkellner, Jae-Won Yang, Maureen Cabatic, Francisco J Monje, Harald H Sitte, Benjamin J Nichols, Daniela D Pollak
Aberrant serotonergic neurotransmission in the brain is considered at the core of the pathophysiological mechanisms involved in neuropsychiatric disorders. Gene by environment interactions contribute to the development of depression and involve modulation of the availability and functional activity of the serotonin transporter (SERT). Using behavioral and in vivo electrophysiological approaches together with biochemical, molecular-biological and molecular imaging tools we establish Flotillin-1 (Flot1) as a novel protein interacting with SERT and demonstrate its involvement in the response to chronic corticosterone (CORT) treatment...
April 18, 2018: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29667263/assumptions-made-when-preparing-drug-exposure-data-for-analysis-have-an-impact-on-results-an-unreported-step-in-pharmacoepidemiology-studies
#3
Stephen R Pye, Thérèse Sheppard, Rebecca M Joseph, Mark Lunt, Nadyne Girard, Jennifer S Haas, David W Bates, David L Buckeridge, Tjeerd P van Staa, Robyn Tamblyn, William G Dixon
PURPOSE: Real-world data for observational research commonly require formatting and cleaning prior to analysis. Data preparation steps are rarely reported adequately and are likely to vary between research groups. Variation in methodology could potentially affect study outcomes. This study aimed to develop a framework to define and document drug data preparation and to examine the impact of different assumptions on results. METHODS: An algorithm for processing prescription data was developed and tested using data from the Clinical Practice Research Datalink (CPRD)...
April 17, 2018: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29667121/backbone-1-h-13-c-and-15-n-resonance-assignments-of-the-ligand-binding-domain-of-the-human-wildtype-glucocorticoid-receptor-and-the-f602s-mutant-variant
#4
Christian Köhler, Göran Carlström, Stefan Tångefjord, Tineke Papavoine, Matti Lepistö, Karl Edman, Mikael Akke
The glucocorticoid receptor (GR) is a nuclear hormone receptor that regulates key genes controlling development, metabolism, and the immune response. GR agonists are efficacious for treatment of inflammatory, allergic, and immunological disorders. Steroid hormone binding to the ligand-binding domain (LBD) of GR is known to change the structural and dynamical properties of the receptor, which in turn control its interactions with DNA and various co-regulators and drive the pharmacological response. Previous biophysical studies of the GR LBD have required the use of mutant forms to overcome issues with limited protein stability and high aggregation propensity...
April 17, 2018: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/29666573/psychosocial-stress-and-immunity-what-can-we-learn-from-pig-studies
#5
Ulrike Gimsa, Margret Tuchscherer, Ellen Kanitz
Psychosocial stress may impair immune functions and provoke the development of pathologies. The underlying communication between the brain and the immune system is being studied predominantly in rodents. However, pigs offer several advantages as preclinical models for humans because pigs are more similar to humans than rodents in many anatomical and physiological characteristics. Unlike in rodents, the main stress-induced glucocorticoid in humans and pigs is cortisol with a similar circadian rhythm. In this study, we summarize data on short-term and long-term effects of social stress in pigs for their immunity and neuroendocrine regulation with consequences for their health and well-being...
2018: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29666092/a-rare-cause-of-oligoarthritis-with-septic-presentation
#6
Patrick Hoversten, Joel Beachey, Michael Pham, Anjali Bhagra
A 33-year-old man presented with new-onset, asymmetric, migratory oligoarthritis in the setting of several weeks of nausea and vomiting, diarrhoea, fevers and dysuria. He was initially treated in the inpatient setting with broad-spectrum antibiotics due to concern for an evolving sepsis presentation. Arthrocentesis of a large right knee effusion revealed inflammatory synovial fluid without findings suggestive of septic arthritis. Human leucocyte antigen B27 was positive and, taken together with the antecedent history of gastroenteritis, dysuria and inflammatory oligoarthritis, the clinical diagnosis was most consistent with reactive arthritis...
April 17, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29665928/-clinical-characteristics-treatment-and-prognosis-of-ptld-after-allogeneic-hematopoietic-stem-cell-transplantation
#7
Zhan-Xiang Liu, Wen-Rong Huang, Meng Li, Zhen-Yang Gu, Cheng-Ying Zhu, Ning Lu, Sheng Yao, Shu-Hong Wang, Fei Li, Xiao-Ning Gao, Dai-Hong Liu, Chun-Ji Gao
OBJECTIVE: To study the clinical characteristics of patients with post-transplantation lymphoproliferative disease (PTLD) after allogeneic peripheral blood hematopoietic stem cell transplantation, and to improve the understanding and diagnosis of PTLD. METHODS: The clinical data of 244 patients underwent allogeneic hematopoietic stem cell transplantation in the General Hospital of PLA from May 2014 to April 2017 were analyzed retrospectively. The follow-up time was up to November 30, 2017...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29665907/-influencing-factors-of-nosocomial-infection-after-chemotherapy-in-adult-patients-with-acute-myeloid-leukemia-and-its-control-strategy
#8
Shu-Tan Li, Liu Tang, Xiao-Min Chen, Xiao-Ming Li
OBJECTIVE: To investigate the influencing factors of nosocomial infection in adult patients with acute myeloid leukemia (AML) and its control strategies. METHODS: The clinical data of 109 patients with AML treated in our hospital from June 2014 to June 2017 were retrospectively analyzed. The clinical factors were analyzed retrospectively, and the influencing factors of infection after chemotherapy were explored. RESULTS: A total of 109 patients received chemotherapy for 267 case-times, the infection occurred in 168 case-times, the nosocomial infection rate was 62...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29663999/-analysis-of-high-risk-factors-of-intensive-care-unit-acquired-weakness-in-patients-with-sepsis
#9
Xiaofan Yu, Xiaohong Wan, Linjun Wan, Qingqing Huang
OBJECTIVE: To investigate high risk factors of intensive care unit-acquired weakness (ICUAW) in patients with sepsis. METHODS: A retrospective study was conducted. 164 patients with mechanical ventilation (MV) who were diagnosed sepsis and multiple organ dysfunction syndrome (MODS), admitted to intensive care unit (ICU) of the Second Affiliated Hospital of Kunming Medical University from January 1st, 2015 to September 30th, 2017 were enrolled. The general situation, the basic diseases (hypertension, diabetes), body mass index (BMI), protopathy diseases, the level of albumin before ICU admission, the MV time, whether to use glucocorticoid and continuous renal replacement therapy (CRRT) or not, nutrition supply (nutritional way, nutrition initiation time, amino acid/protein supply, nutritional status on ICU 3 days and 7 days), myoglobin, the length of ICU stay, the length of hospital stay, and acute physiology and chronic health evaluation II (APACHE II) score were collected...
April 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29663559/sex-differences-in-hippocampal-mineralocorticoid-and-glucocorticoid-receptor-mrna-expression-in-response-to-acute-mate-pair-separation-in-zebra-finches-taeniopygia-guttata
#10
Farrah N Madison, Andrew J Kesner, Beau A Alward, Gregory F Ball
Mate separation has been shown to mediate changes in physiological and behavioral processes via activation of the hypothalamo-pituitary-adrenal (HPA) axis in both mammalian and avian species. In order to elucidate the neural mechanisms associated with changes in the HPA axis in response to social stress, we investigated the effects of mate pair separation on circulating corticosterone concentrations as well as gene expression levels of mineralocorticoid receptor (MR), glucocorticoid receptor (GR), and corticotropin releasing hormone (CRH) in the hypothalamus and hippocampus of both male and female zebra finches, a species that forms strong pair bonds...
April 16, 2018: Hippocampus
https://www.readbyqxmd.com/read/29663159/evaluation-of-the-effect-of-polyphenol-of-escin-compared-with-ibuprofen-and-dexamethasone-in-synoviocyte-model-for-osteoarthritis-an-in-vitro-study
#11
Hossein Maghsoudi, Jamal Hallajzadeh, Mozhghan Rezaeipour
Osteoarthritis (OA) is a chronic degenerative joint disease with inflammatory component. It is associated with progressive histological alterations and disabling symptoms. Today, drugs such as glucocorticoids (GCs) and nonsteroidal anti-inflammatory drugs (NSIADs) are commonly employed for treatment of osteoarthritis, but have serious and life-threatening side effects. The aim of the current study is to evaluate the effects of escin on cyclooxygenase-2 (COX-2, isoform), inducible nitric oxide synthase (iNOS), interleukin-1β (IL-1β), interleukin-18 (IL-18), tumor necrosis factor-alpha (TNF-α), and nitric oxide (NO) (1), as well as prostaglandin E2 (PGE2) on inflammatory cells, similar osteoarthritis in synoviocytes, and monocytes/macrophages, and to compare it with dexamethasone (DEX) and ibuprofen (IBP)...
April 16, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29663153/stress-and-obesity-are-there-more-susceptible-individuals
#12
REVIEW
Eline S van der Valk, Mesut Savas, Elisabeth F C van Rossum
PURPOSE OF REVIEW: Stress has long been suspected to be interrelated to (abdominal) obesity. However, interindividual differences in this complex relationship exist. We suggest that the extent of glucocorticoid action partly explains these interindividual differences. We provide latest insights with respect to multiple types of stressors. RECENT FINDINGS: Increased long-term cortisol levels, as measured in scalp hair, are strongly related to abdominal obesity and to specific mental disorders...
April 16, 2018: Current Obesity Reports
https://www.readbyqxmd.com/read/29662939/ltp-or-ltd-modeling-the-influence-of-stress-on-synaptic-plasticity
#13
Achim Peters, Cordula Reisch, Dirk Langemann
In cognitive memory, long-term potentiation (LTP) has been shown to occur when presynaptic and postsynaptic activities are highly correlated and glucocorticoid concentrations are in an optimal (i.e., low normal) range. In all other conditions, LTP is attenuated or even long-term depression (LTD) occurs. In this paper, we focus on NMDA receptor (NMDA-R)-dependent LTP and LTD, two processes involving various molecular mechanisms. To understand which of these mechanisms are indispensable for explaining the experimental evidence reported in the literature, we here propose a parsimonious model of NMDA-R-dependent synaptic plasticity...
January 2018: ENeuro
https://www.readbyqxmd.com/read/29662863/investigation-of-bax-and-bcl2-expression-and-apoptosis-in-a-resveratrol-and-prednisolone-treated-human-t-all-cell-line-ccrf-cem
#14
Taghi Khanzadeh, Majid Farshdousti Hagh, Mehdi Talebi, Bahman Yousefi, Ako Azimi, Abbas Ali Hossein Pour Feizi, Behzad Baradaran
Background: The numerous side effects and chemo-resistance of conventional chemical drugs in the treatment of malignancies have led to consideration of the anti-cancer properties of natural products. In the present study, we aimed to explore the apoptotic effect of two natural components, resveratrol and prednisolone, on the T acute lymphoblastic leukemia (ALL) cell line, CCRF-CEM. Our findings suggested the incorporation of these natural agents into drug regimens to treat patients with ALL...
March 2018: Blood Research
https://www.readbyqxmd.com/read/29662808/critical-illness-related-corticosteroid-insufficiency-in-patients-with-low-cardiac-output-syndrome-after-cardiac-surgery
#15
You Jung Ok, Ju Yong Lim, Sung-Ho Jung
Background: Low cardiac output syndrome (LCOS) after cardiac surgery usually requires inotropes. In this setting, critical illness-related corticosteroid insufficiency (CIRCI) may develop. We aimed to investigate the clinical features of CIRCI in the presence of LCOS and to assess the efficacy of steroid treatment. Methods: We reviewed 28 patients who underwent a rapid adrenocorticotropic hormone (ACTH) test due to the suspicion of CIRCI between February 2010 and September 2014...
April 2018: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29662664/regulation-of-the-antiapoptotic-protein-cflip-by-the-glucocorticoid-dexamethasone-in-all-cells
#16
Lara Kleinesudeik, Katharina Rohde, Simone Fulda
We recently reported that the Smac mimetic BV6 and glucocorticoids, e.g. Dexamethasone (Dexa), synergize to induce cell death in acute lymphoblastic leukemia (ALL) in vitro and in vivo . Here, we discover that this synergism involves Dexa-stimulated downregulation of cellular FLICE-like inhibitory protein (cFLIP) in ALL cells. Dexa rapidly decreases cFLIPL protein levels, which is further enhanced by addition of BV6. While attenuating the activation of non-canonical nuclear factor-kappaB (NF-κB) signaling by BV6, Dexa suppresses cFLIPL protein but not mRNA levels pointing to a transcription-independent downregulation of cFLIPL by Dexa...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29661784/mechanisms-in-endocrinology-a-sense-of-time-of-the-glucocorticoid-circadian-clock-from-the-ontogeny-to-the-diagnosis-of-cushing-s-syndrome
#17
Ayrton Custodio Moreira, Sonir Roberto R Antonini, Margaret De Castro
The circadian rhythm of glucocorticoids has long been recognised within the last 75 years. Since the beginning, researchers have sought to identify basic mechanisms underlying the origin and emergence of the corticosteroid circadian rhythmicity among mammals. Accordingly, Young, Hall and Rosbash, laureates of the 2017 Nobel Prize in Physiology or Medicine, as well as Takahashi's group among others, have characterised the molecular cogwheels of the circadian system, describing interlocking transcription/translation feedback loops essential for normal circadian rhythms...
April 16, 2018: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29661684/trabecular-bone-score-and-hip-structural-analysis-in-patients-with-atypical-femur-fractures
#18
Sanne K C Buitendijk, Denise M van de Laarschot, Alexandra A A Smits, Fjorda Koromani, Fernando Rivadeneira, Thomas J Beck, M Carola Zillikens
Bisphosphonate use has declined dramatically in recent years, partly because of fear of rare side effects like atypical femur fractures (AFFs). It is therefore desirable to have a diagnostic method to identify those at risk of AFF to prevent this serious complication. We compared trabecular microarchitecture and hip geometry between 30 patients with AFF and 141 controls of similar age and sex, using bisphosphonates. Trabecular bone score (TBS) and hip structural analysis (HSA) were used to assess trabecular microarchitecture and macroscopic hip geometry from dual-energy X-ray absorptiometry images of the lumbar spine and hip, respectively...
March 22, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29661114/pasireotide-treatment-does-not-modify-hyperglycemic-and-corticosterone-acute-restraint-stress-responses-in-rats
#19
Antônio Ribeiro-Oliveira, Junia R O L Schweizer, Pedro H S Amaral, Mariana F Bizzi, Warley Cezar da Silveira, Daniel T A Espirito-Santo, Giancarlo Zille, Beatriz S Soares, Herbert A Schmid, Kevin C J Yuen
Pasireotide is a new-generation somatostatin analog that acts through binding to multiple somatostatin receptor subtypes. Studies have shown that pasireotide induces hyperglycemia, reduces glucocorticoid secretion, alters neurotransmission, and potentially affects stress responses typically manifested as hyperglycemia and increased corticosterone secretion. This study specifically aimed to evaluate whether pasireotide treatment modifies glucose and costicosterone secretion in response to acute restraint stress...
April 17, 2018: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/29660818/investigation-of-metabolic-properties-and-effects-of-17%C3%AE-carboxamide-glucocorticoids-on-human-peripheral-blood-leukocytes
#20
Vladimir Dobričić, Ivana Drvenica, Ana Stančić, Marija Mihailović, Olivera Čudina, Diana Bugarski, Vesna Ilić
The biological activity of three previously synthesized 17β-carboxamide glucocorticoids (BG, BEG, and MPEA) was tested in vitro on mitogen stimulated and non-stimulated peripheral blood mononuclear cells (MNCs) and granulocytes from human healthy donors, and the results were compared to the conventional glucocorticoid dexamethasone. The tested 17β-carboxamide glucocorticoids did not induce decreases in MNC viability and proliferation, while modulation of reactive oxygen species (ROS) synthesis in granulocytes was dependent on the cell donor...
April 16, 2018: Archiv der Pharmazie
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