Read by QxMD icon Read


Diego M Presman, Gordon L Hager
It is widely accepted that the glucocorticoid receptor (GR), a ligand-regulated transcription factor that triggers anti-inflammatory responses, binds specific response elements as a homodimer. Here, we will discuss the original primary data that established this model and contrast it with a recent report characterizing the GR-DNA complex as a tetramer.
October 20, 2016: Transcription
Mythily Srinivasan, Baindu Bayon, Nipun Chopra, Debomoy K Lahiri
In the central nervous system (CNS), activation of the transcription factor nuclear factor-kappa B (NF-κβ) is associated with both neuronal survival and increased vulnerability to apoptosis. The mechanisms underlying these dichotomous effects are attributed to the composition of NF-κΒ dimers. In Alzheimer's disease (AD), β-amyloid (Aβ) and other aggregates upregulate activation of p65:p50 dimers in CNS cells and enhance transactivation of pathological mediators that cause neuroinflammation and neurodegeneration...
2016: PloS One
Laura R Stroud, George D Papandonatos, Stephanie H Parade, Amy L Salisbury, Maureen G Phipps, Barry M Lester, James F Padbury, Carmen J Marsit
OBJECTIVES: Extending prior studies of prenatal adversity and depressive symptoms, we tested associations between maternal prenatal major depressive disorder (MDD) and infant cortisol regulation. Based on prior findings by our group, we also tested placenta glucocorticoid (HSD11B2 methylation) and serotonin (SLC6A4 gene expression) signaling as moderators of links between prenatal MDD and infant cortisol. METHODS: Participants were 153 mother-infant pairs from a low-income, diverse sample (M [SD] age = 26[6] years)...
October 19, 2016: Psychosomatic Medicine
Christine L Madliger, Oliver P Love
The application of physiological measures to conservation monitoring has been gaining momentum and, while a suite of physiological traits are available to ascertain disturbance and condition in wildlife populations, glucocorticoids (i.e., GCs; cortisol and corticosterone) are the most heavily employed. The interpretation of GC levels as sensitive indicators of population change necessitates that GCs and metrics of population persistence are linked. However, the relationship between GCs and fitness may be highly context-dependent, changing direction, or significance, depending on the GC measure, fitness metric, life history stage, or other intrinsic and extrinsic contexts considered...
July 27, 2016: Ecological Applications: a Publication of the Ecological Society of America
Nishone Thompson, Zainab Boone-Kukoyi, Raquel Shortt, Carisse Lansiquot, Bridgit Kioko, Enock Bonyi, Salih Toker, Birol Ozturk, Kadir Aslan
Gout is caused by the overproduction of uric acid and the inefficient metabolism of dietary purines in humans. Current treatments of gout, which include anti-inflammatory drugs, cyclooxygenase-2 inhibitors, and systemic glucocorticoids, have harmful side-effects. Our research laboratory has recently introduced an innovative approach for the decrystallization of biological and chemical crystals using the Metal-Assisted and Microwave-Accelerated Evaporative Decrystallization (MAMAD) technique. In the MAMAD technique, microwave energy is used to heat and activate gold nanoparticles that behave as "nano-bullets" to rapidly disrupt the crystal structure of biological crystals placed on planar surfaces...
October 18, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Georgios Nikolakis, Constantine A Stratakis, Theodora Kanaki, Andrej Slominski, Christos C Zouboulis
The skin is an important extra-gonadal steroidogenic organ, capable of metabolizing various hormones from their precursors, as well as of synthesizing de novo a broad palette of sex steroids and glucocorticoids from cholesterol. In this manuscript, we review the major steroidogenic properties of human skin and we suggest steroidogenesis' impairment as a cardinal factor for various pathological conditions such as acne, rosacea, atopic dermatitis, and androgenic alopecia.
October 20, 2016: Reviews in Endocrine & Metabolic Disorders
Marius N Stan, Mario Salvi
Rituximab (RTX) use in open label series has been associated with very encouraging responses in patients with active and moderate-to-severe Graves' Orbitopathy (GO). Recently randomized controlled trials of RTX have been performed in such patients in order to answer the question of clinical efficacy and the safety profile of this agent. That data, reported separately, focused on Clinical Activity Score (CAS) and indicated in one trial a strong benefit of RTX in comparison with IV glucocorticoids while the other trial noted the absence of a benefit by comparison with placebo...
October 19, 2016: European Journal of Endocrinology
Kim Heang Ly, François Dalmay, Guillaume Gondran, Sylvain Palat, Holy Bezanahary, Anne Cypierre, Anne-Laure Fauchais, Eric Liozon
Although a glucocorticoid (GC)-sparing strategy is needed for patients with giant cell arteritis (GCA) suffering from refractory disease or serious treatment-related complications, evidence of efficacy in this setting of immunosuppressive drugs and biotherapies is lacking. Herein, we evaluated the GC-sparing effects and tolerability of addition of dapsone (DDS) to prednisone therapy in patients with GCA. We retrospectively assessed data on 18 GCA patients who received DDS as a first-line treatment (DDS-1 group) and 52 patients who received it as a second- or third-line treatment for refractory GCA, with or without excessive GC-related toxicity (DDS-2 group)...
October 2016: Medicine (Baltimore)
Fernando Sánchez-Vizcaíno, David Singleton, Philip H Jones, Bethaney Heayns, Maya Wardeh, Alan D Radford, Vanessa Schmidt, Susan Dawson, Peter J M Noble, Sally Everitt
Presentation for pruritus comprised 6.5 per cent, 3.6 per cent and 2.0 per cent of canine, feline and rabbit consultations, respectively, between January 2014 and June 2016Topical antimicrobials were the most commonly prescribed pruritus treatments for dogs (33.6 per cent of consultations); for cats, it was systemic glucocorticoids (53.5 per cent)In surveillance of coagulase-positive staphylococci, 16 per cent of 176 coagulase-positive staphylococci isolated from canine diagnostic samples were sensitive to all tested antibacterial classes; multidrug resistance (resistance to three or more antibacterial classes) was found in 6...
October 8, 2016: Veterinary Record
Christine L Madliger, Oliver P Love
Labile physiological variables, such as stress hormones [i.e. glucocorticoids (GCs)], allow individuals to react to perturbations in their environment and may therefore reflect the effect of disturbances or positive conservation initiatives in advance of population-level demographic measures. Although the application of GCs as conservation biomarkers has been of extensive interest, few studies have explicitly investigated whether baseline GC concentrations respond to disturbances consistently across individuals...
2016: Conservation Physiology
Mohammad Reza Hatef-Fard, Mina Khodabandeh, Maryam Sahebari, Majid Ghayour-Mobarhan, Zahra Rezaieyazdi
BACKGROUND: Systemic lupus erythematous is an autoimmune disease associated with atherosclerotic manifestations or metabolic disturbance due to inflammation. The aim of this study was to determine frequency of metabolic syndrome (MetS) in SLE compared to healthy controls. METHODS: In this cross-sectional study, 150 SLE patients and 220 healthy volunteers were enrolled. MetS was diagnosed according to ATPIII criteria. Patients and controls were compared according to prevalence of MetS...
2016: Caspian Journal of Internal Medicine
Meredith J Bashaw, Florian Sicks, Rupert Palme, Franz Schwarzenberger, Adrian S W Tordiffe, Andre Ganswindt
BACKGROUND: Numbers of giraffes are declining rapidly in their native habitat. As giraffe research and conservation efforts increase, the demand for more complete measures of the impact of conservation interventions and the effects of captive environments on animal health and welfare have risen. We compared the ability of six different enzyme immunoassays to quantify changes in fecal glucocorticoid metabolites (FGM) resulting from three sources: adrenocorticotropic hormone stimulation test, transport, and time of day that samples were collected...
October 18, 2016: BMC Veterinary Research
James Sm Cuffe, Eleanor L Turton, Lisa K Akison, Helle Bielefeldt-Ohmann, Karen M Moritz
Maternal stress can impair fetal development and program sex-specific disease outcomes in offspring through the actions of maternally produced glucocorticoids, predominantly corticosterone (Cort) in rodents. We have demonstrated in mice that male but not female offspring prenatally exposed to Cort (33µg/kg/h for 60h beginning at E12.5) develop cardiovascular/renal dysfunction at 12 months. At 6 months of age, renal function was normal but male offspring had increased plasma aldosterone concentrations, suggesting altered adrenal function may precede disease...
October 17, 2016: Journal of Endocrinology
Sandip K Boss, Irina Hutson, Charles Harris
Exogenous glucocorticoid (GC) administration results in hyperglycemia, insulin resistance, hepatic dyslipidemia and hypertension, a constellation of findings known as Cushing's syndrome. These effects are mediated by the glucocorticoid receptor (GR). Since GR activation in liver and adipose has been implicated in metabolic syndrome we wanted to determine the role of GR in these tissues in the development of metabolic syndrome. Since GRKO mice (whole body KO) exhibit perinatal lethality due to respiratory failure, we generated tissue specific (liver or adipose) GRKO mice using cre-lox technology...
October 18, 2016: Endocrinology
R A Bryant, K L Felmingham, B Liddell, P Das, G S Malhi
The FKBP5 polymorphism is a key regulator of the glucocorticoid system underpinning stress responsivity, and risk alleles can increase vulnerability for developing posttraumatic stress disorder. To delineate the specific role of FKBP5 risk alleles unencumbered by the confounds of psychopathology, this study investigated whether high-risk alleles of the FKBP5 polymorphism are characterized by distinctive neural activity during resting state. Thirty-seven healthy participants were selected on the basis of four SNPs in the FKBP5 gene region (rs3800373, rs9296158, rs1360780 and rs9470080) to determine participants who were carriers of the FKBP5 high- and low-risk alleles...
October 18, 2016: Translational Psychiatry
Yu-Cheng Li, Ya-Min Liu, Ji-Duo Shen, Jun-Jie Chen, Yang-Yi Pei, Xiao-Yan Fang
Chronic glucocorticoid exposure is known to cause depression and metabolic disorders. It is critical to improve abnormal metabolic status as well as depressive-like behaviors in patients with long-term glucocorticoid therapy. This study aimed to investigate the effects of resveratrol on the depressive-like behaviors and metabolic abnormalities induced by chronic corticosterone injection. Male ICR mice were administrated corticosterone (40 mg/kg) by subcutaneous injection for three weeks. Resveratrol (50 and 100 mg/kg), fluoxetine (20 mg/kg) and pioglitazone (10 mg/kg) were given by oral gavage 30 min prior to corticosterone administration...
October 13, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
InKyeom Kim
Histone deacetylases (HDACs) act as co-repressors in gene transcription by erasing the acetylation of histones, resulting in epigenetic gene silencing. Recent studies revealed that HDAC inhibitors attenuated blood pressure of several hypertensive animal models such as spontaneously hypertensive rats, hyperaldosteronism rats, angiotensin II-induced hypertensive rats and pulmonary hypertensive rats. Unexpectedly, microarray studies uncovered that administration of HDAC inhibitors decreased expression of some genes for example extracellular matrix proteins, oxidative stress-related proteins, cytokines, chemokines and ion transporters, mostly targets of corticoid receptors...
September 2016: Journal of Hypertension
Che Wei Liao, Chi Sheng Hung, Chia Hung Chou, Yen Tin Lin, Xue Ming Wu, Yi Yao Chang, Ying Hsien Chen, Vin Cent Wu, Yi Lwun Ho, Kwan Dun Wu, Yen Hung Lin
OBJECTIVE: Aldosterone induces myocardial fibrosis. The tissue inhibitor of metalloproteinases-1 (TIMP-1) is a key factor of myocardial fibrosis and diastolic dysfunction, but the effect of aldosterone on TIMP-1 expression remains unclear. We tested the hypothesis that aldosterone induces TIMP-1 expression and contributes to the fibrotic process. DESIGN AND METHOD: In the human study, we prospectively enrolled 54 patients with primary aldosteronism. Plasma TIMP-1 and echocardiographic parameters were measured...
September 2016: Journal of Hypertension
Anna F Dominiczak
Human primary or essential hypertension is a complex, polygenic trait with some 50% contribution from genes and environment. Richard Lifton and colleagues provided elegant dissection of several rare Mendelian forms of hypertension, exemplified by the glucocorticoid remediable aldosteronism and Liddle's syndrome. These discoveries illustrate that a single gene mutation can explain the entire pathogenesis of severe, early onset hypertension as well as dictating the best treatment. The dissection of the much more common polygenic hypertension has proven much more difficult...
September 2016: Journal of Hypertension
Naftali Stern
As both the rate of hypertension and cancer rise with age, concomitant hypertension in patients receiving treatment for cancer is very common. Increase in blood pressure during cancer treatment requires careful clinical assessment. Distinction between discontinuation or malabsorption of antihypertensive treatment due to factors such as nausea/vomiting/diarrhea and anti-cancer drug specific effects must be first made. De-novo hypertension during cancer treatment is likely related to anticancer drugs per se. Classical chemotherapeutic agents such as cyclophosphamide, cisplatin and busulfan have been previously linked to rising blood pressure...
September 2016: Journal of Hypertension
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"