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https://www.readbyqxmd.com/read/28813523/et-26-hydrochloride-et-26-hcl-has-similar-hemodynamic-stability-to-that-of-etomidate-in-normal-and-uncontrolled-hemorrhagic-shock-uhs-rats
#1
Bin Wang, Shouming Chen, Jun Yang, Linghui Yang, Jin Liu, Wensheng Zhang
OBJECTIVE: ET-26 HCl is a promising sedative-hypnotic anesthetic with virtually no effect on adrenocortical steroid synthesis. However, whether or not ET-26 HCl also has a sufficiently wide safety margin and hemodynamic stability similar to that of etomidate and related compounds remains unknown. In this study, the effects of ET-26 HCl, etomidate and propofol on therapeutic index, heart rate (HR), mean arterial pressure (MAP), maximal rate for left ventricular pressure rise (Dmax/t), and maximal rate for left ventricular pressure decline (Dmin/t) were investigated in healthy rats and a rat model of uncontrolled hemorrhagic shock (UHS)...
2017: PloS One
https://www.readbyqxmd.com/read/28813416/large-turbulent-reservoirs-of-cold-molecular-gas-around-high-redshift-starburst-galaxies
#2
E Falgarone, M A Zwaan, B Godard, E Bergin, R J Ivison, P M Andreani, F Bournaud, R S Bussmann, D Elbaz, A Omont, I Oteo, F Walter
Starburst galaxies at the peak of cosmic star formation are among the most extreme star-forming engines in the Universe, producing stars over about 100 million years (ref. 2). The star-formation rates of these galaxies, which exceed 100 solar masses per year, require large reservoirs of cold molecular gas to be delivered to their cores, despite strong feedback from stars or active galactic nuclei. Consequently, starburst galaxies are ideal for studying the interplay between this feedback and the growth of a galaxy...
August 14, 2017: Nature
https://www.readbyqxmd.com/read/28812967/tanshinone-induced-ers-suppresses-igfii-activation-to-alleviate-ang-ii-mediated-cardiac-hypertrophy
#3
Ya-Fang Chen, Nien-Hung Lee, Pei-Ying Pai, Li-Chin Chung, Chia-Yao Shen, Peramaiyan Rajendran, Yu-Feng Chen, Ray-Jade Chen, Vijaya Padma Viswanadha, Wei-Wen Kuo, Chih-Yang Huang
Cardiomyopathy involves changes in myocardial ultrastructure and cardiac hypertrophy. Angiotensin II (AngII) has previously been shown to stimulate the expression of IGF-2 and IGF-2R in H9c2 cardiomyoblasts and increase of blood pressure, and cardiac hypertrophy. Estrogen receptors (ERs) exert protective effects, such as anti-hypertrophy in cadiomyocytes. Tanshinone IIA (TSN), a main active ingredient from a Chinese medical herb, Salvia miltiorrhiza Bunge (Danshen), was shown to protect cardiomyocytes hypertrophy by different stress signals...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28812842/governance-and-capacity-to-manage-resilience-of-health-systems-towards-a-new-conceptual-framework
#4
Karl Blanchet, Sara L Nam, Ben Ramalingam, Francisco Pozo-Martin
The term resilience has dominated the discourse among health systems researchers since 2014 and the onset of the Ebola outbreak in West Africa. There is wide consensus that the global community has to help build more resilient health systems. But do we really know what resilience means, and do we all have the same vision of resilience? The present paper presents a new conceptual framework on governance of resilience based on systems thinking and complexity theories. In this paper, we see resilience of a health system as its capacity to absorb, adapt and transform when exposed to a shock such as a pandemic, natural disaster or armed conflict and still retain the same control over its structure and functions...
April 4, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812766/modulatory-effects-of-arginine-glutamine-and-branched-chain-amino-acids-on-heat-shock-proteins-immunity-and-antioxidant-response-in-exercised-rats
#5
Carolina Soares Moura, Pablo Christiano Barboza Lollo, Priscila Neder Morato, Eder Muller Risso, Jaime Amaya-Farfan
Heat shock proteins (HSPs) are endogenous proteins whose function is to maintain the cell's tolerance to insult, and glutamine supplementation is known to increase HSP expression during intense exercise. Since few studies have addressed the possibility that supplementation with other amino acids could have similar effects to that of glutamine, our objective was to evaluate the effects of leucine, valine, isoleucine and arginine as potential stimulators of HSPs 25, 60, 70 and 90 in rats subjected to acute exercise as a stressing factor...
August 16, 2017: Food & Function
https://www.readbyqxmd.com/read/28812292/effect-of-low-selenium-high-fat-diet-on-pig-peripheral-blood-lymphocytes-perspectives-from-selenoproteins-heat-shock-proteins-and-cytokines
#6
Tianqi Liu, Tianshu Yang, Tingru Pan, Ci Liu, Shu Li
The aim of the present study was to clarify the effect of low selenium (Se)/high fat on the mRNA expression of selenoproteins, heat shock proteins (HSPs) and cytokines in pig peripheral blood lymphocytes. Forty crossbred boar piglets with healthy lean body weights of 10 kg were randomly divided into four treatment groups (group C, group L-Se, group H-fat, and group L-Se-H-fat) (n = 10/group) and fed with the corresponding diet for 16 weeks. The pig peripheral blood lymphocytes were extracted, and the mRNA expression of selenoproteins, HSPs, and cytokines was measured...
August 15, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28812277/milonine-an-alkaloid-of-cissampelos-sympodialis-eichl-menispermaceae-inhibits-histamine-release-of-activated-mast-cells
#7
Adriano Francisco Alves, Giciane Carvalho Vieira, Francisco Allysson A F Gadelha, Luiz Henrique Agra Cavalcante-Silva, Marco Aurélio Martins, José Maria Barbosa-Filho, Marcia Regina Piuvezam
Milonine is an alkaloid of Cissampelos sympodialis Eichl. (Menispermaceae), a plant used in the northeast of Brazil to treat allergies such as asthma, rhinitis, and other conditions. Previously, several alkaloids were isolated from its roots and leaves with pharmacological properties in asthma and acute inflammation models. Therefore, the aim of this study was to evaluate the milonine effect on mast cells degranulation in vivo and in vitro. Swiss mice (n = 8) were used in models of paw edema induced by carrageenan, compound 48/80, or histamine...
August 15, 2017: Inflammation
https://www.readbyqxmd.com/read/28812232/introgression-of-heat-shock-protein-hsp70-and-shsp-genes-into-the-malaysian-elite-chilli-variety-kulai-capsicum-annuum-l-through-the-application-of-marker-assisted-backcrossing-mab
#8
Magaji G Usman, Mohd Y Rafii, Mohammad Y Martini, Oladosu A Yusuff, Mohd R Ismail, Gous Miah
Backcrossing together with simple sequence repeat marker strategy was adopted to improve popular Malaysian chilli Kulai (Capsicum annuum L.) for heat tolerance. The use of molecular markers in backcross breeding and selection contributes significantly to overcoming the main drawbacks such as increase linkage drag and time consumption, in the ancient manual breeding approach (conventional), and speeds up the genome recovery of the recurrent parent. The strategy was adopted to introgress heat shock protein gene(s) from AVPP0702 (C...
August 15, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28812129/-device-based-remote-monitoring-current-evidence
#9
REVIEW
David Duncker, Roman Michalski, Johanna Müller-Leisse, Christos Zormpas, Thorben König, Christian Veltmann
Telemedicine is increasingly used in clinical cardiology. It offers early detection of arrhythmias, technical device follow-up and support of heart failure management. Regarding technical device follow-up, remote monitoring significantly reduces usage of the health care system. Furthermore, remote monitoring is associated with a significantly reduced time from device malfunction to physician's perception of the event. Using remote monitoring, inappropriate ICD (implantable cardioverter defibrillator) shocks can be significantly reduced compared to routine in-office follow-up...
August 15, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28812000/diagnostic-imaging-features-of-necrotizing-enterocolitis-a-narrative-review
#10
REVIEW
Francesco Esposito, Rosanna Mamone, Marco Di Serafino, Carmela Mercogliano, Valerio Vitale, Gianfranco Vallone, Patrizia Oresta
Necrotizing enterocolitis (NEC) is an inflammatory process, characterized by intestinal necrosis of variable extension, leading to perforation, generalized peritonitis and death. The classical pathogenetic theory focuses on mucosal damage related to a stress induced intestinal ischemia leading to mucosal injury and bacterial colonization of the wall. A more recent hypothesis emphasizes the role of immaturity of gastrointestinal and immune system, particularly of the premature, responsible of bowel wall vulnerability and suffering...
June 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28811944/successful-resuscitation-of-a-patient-with-life-threatening-metabolic-acidosis-by-hemodialysis-a-case-of-ethylene-glycol-intoxication
#11
Ikuyo Narita, Michiko Shimada, Norio Nakamura, Reiichi Murakami, Takeshi Fujita, Wakako Fukuda, Hirofumi Tomita
BACKGROUND: Ethylene glycol intoxication causes severe metabolic acidosis and acute kidney injury. Fomepizole has become available as its antidote. Nevertheless, a prompt diagnosis is not easy because patients are often unconscious. Here we present a case of ethylene glycol intoxication who successfully recovered with prompt hemodialysis. CASE PRESENTATION: A 52-year-old Japanese male was admitted to a local hospital due to suspected food poisoning. The patient presented with nausea and vomiting, but his condition rapidly deteriorated, with worsening conscious level, respiratory distress requiring mechanical ventilation, hypotension, and severe acute kidney injury...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/28811868/selaginella-bryopteris-aqueous-extract-improves-stability-and-function-of-cryopreserved-human-mesenchymal-stem-cells
#12
Abhishek Kumar Singh, Anubhuti Jha, Arindam Bit, Andrey P Kiassov, Albert A Rizvanov, Archit Ojha, Pooja Bhoi, Pradeep Kumar Patra, Awanish Kumar, Akalabya Bissoyi
The effective long-term cryopreservation of human mesenchymal stem cells (MSCs) is an essential prerequisite step and represents a critical approach for their sustained supply in basic research, regenerative medicine, and tissue engineering applications. Therefore, attempts have been made in the present investigation to formulate a freezing solution consisting of a combination of Selaginella bryopteris water-soluble extract with and without dimethyl sulfoxide (Me2SO) for the efficient long-term storage of human umbilical cord blood- (hUCB-) derived MSCs...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28811569/transcriptional-response-to-stress-is-pre-wired-by-promoter-and-enhancer-architecture
#13
Anniina Vihervaara, Dig Bijay Mahat, Michael J Guertin, Tinyi Chu, Charles G Danko, John T Lis, Lea Sistonen
Programs of gene expression are executed by a battery of transcription factors that coordinate divergent transcription from a pair of tightly linked core initiation regions of promoters and enhancers. Here, to investigate how divergent transcription is reprogrammed upon stress, we measured nascent RNA synthesis at nucleotide-resolution, and profiled histone H4 acetylation in human cells. Our results globally show that the release of promoter-proximal paused RNA polymerase into elongation functions as a critical switch at which a gene's response to stress is determined...
August 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28811486/detecting-human-melanoma-cell-re-differentiation-following-braf-or-heat-shock-protein-90-inhibition-using-photoacoustic-and-magnetic-resonance-imaging
#14
Anant Shah, Teresa Delgado-Goni, Teresa Casals Galobart, Slawomir Wantuch, Yann Jamin, Martin O Leach, Simon P Robinson, Jeffrey Bamber, Mounia Beloueche-Babari
Targeted therapies specific to the BRAF-MEK-ERK signaling pathway have shown great promise in the treatment of malignant melanoma in the last few years, with these drugs now commonly used in clinic. Melanoma cells treated using these agents are known to exhibit increased levels of melanin pigment and tyrosinase activity. In this study we assessed the potential of non-invasive imaging approaches (photoacoustic imaging (PAI) and magnetic resonance imaging (MRI)) to detect melanin induction in SKMEL28 human melanoma cells, following inhibition of Hsp90 and BRAF signaling using 17-AAG and vemurafenib, respectively...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811466/time-lapse-crystallography-snapshots-of-a-double-strand-break-repair-polymerase-in-action
#15
Joonas A Jamsen, William A Beard, Lars C Pedersen, David D Shock, Andrea F Moon, Juno M Krahn, Katarzyna Bebenek, Thomas A Kunkel, Samuel H Wilson
DNA polymerase (pol) μ is a DNA-dependent polymerase that incorporates nucleotides during gap-filling synthesis in the non-homologous end-joining pathway of double-strand break repair. Here we report time-lapse X-ray crystallography snapshots of catalytic events during gap-filling DNA synthesis by pol μ. Unique catalytic intermediates and active site conformational changes that underlie catalysis are uncovered, and a transient third (product) metal ion is observed in the product state. The product manganese coordinates phosphate oxygens of the inserted nucleotide and PPi...
August 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28811313/a-key-role-for-foxq2-in-anterior-head-and-central-brain-patterning-in-insects
#16
Peter Kitzmann, Matthias Weißkopf, Magdalena Ines Schacht, Gregor Bucher
Anterior patterning of animals is based on a set of highly conserved transcription factors but the interactions within the protostome anterior gene regulatory network (aGRN) remain enigmatic. Here, we identify the red flour beetle Tribolium castaneum ortholog of foxQ2 (Tc-foxQ2) as a novel upstream component of the aGRN. It is required for the development of the labrum and higher order brain structures, namely the central complex and the mushroom bodies. We reveal Tc-foxQ2 interactions by RNAi and heat shock-mediated misexpression...
August 15, 2017: Development
https://www.readbyqxmd.com/read/28810889/dehydroepiandrosterone-sulfate-and-dehydroepiandrosterone-sulfate-cortisol-ratio-in-cirrhotic-patients-with-septic-shock-another-sign-of-hepatoadrenal-syndrome
#17
Ming-Hung Tsai, Hui-Chun Huang, Yun-Shing Peng, Yung-Chang Chen, Ya-Chung Tian, Chih-Wei Yang, Jau-Min Lien, Ji-Tseng Fang, Cheng-Shyong Wu, Sen-Yung Hsieh, Fa-Yauh Lee
BACKGROUND: Cirrhotic patients are susceptible to sepsis and critical illness-related corticosteroid insufficiency (CIRCI). Dehydroepiandrosterone sulfate (DHEAS) is a corticotropin-dependent adrenal androgen, which has immunostimulating and antiglucocorticoid effects. Considering the synchronized synthesis of cortisol and DHEAS and their opposing effects to each other, investigators have proposed measuring these two hormones as a ratio. Severe sepsis has been associated with low DHEAS, especially relative to high cortisol...
August 15, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28810788/direct-measurement-of-site-specific-rates-of-reactions-of-h-with-c3h8-i-c4h10-and-n-c4h10
#18
Chia-Chieh Lin, Wei-Yu Chen, Hiroyuki Matsui, Niann-Shiah Wang
We measured the rates of abstraction of a hydrogen atom from specific sites in propane C3H8, 2-methyl propane (i-C4H10), and butane (n-C4H10); the sites are a primary hydrogen of C3H8 and i-C4H10 and a secondary hydrogen of n-C4H10. The excellent reproducibility of conditions of a diaphragm-less shock tube enabled us to conduct comparative measurements of the evolution of H atoms in three mixtures-(i) 0.5 ppm C2H5I + Ar, (ii) 0.5 ppm C2H5I + 50-100 ppm alkane as C3H8 or i-C4H10 or n-C4H10 + Ar, and (iii) the same concentrations of alkane + Ar without C2H5I-in the temperature range 1000-1200 K and at a pressure of 2...
August 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28810623/evaluation-of-heat-shock-protein-hsp-72-expression-in-retinal-ganglion-cells-of-rats-with-glaucoma
#19
Guo-Hua Wang, Yi-Qiao Xing
The present study was planned to observe the expression of heat shock protein 72 (HSP72) in retina of rats in a glaucoma model. A total of 50 Wistar rats were randomly divided into the high intraocular tension group (glaucoma model) and the sham control (sham operation) group. Glaucoma rat models were created by application of electrocoagulation on at least three groups of veins, reduction of venous return of aqueous humor and by enhancement of intraocular tension at the same time; 1, 2, 3, 4 and 8 weeks after operation, the intraocular tension of rats was observed respectively, and the expression/distribution of HSP72 in retina was assessed by immunohistochemical detection...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810585/glutamine-promotes-hsp70-and-inhibits-%C3%AE-synuclein-accumulation-in-pheochromocytoma-pc12-cells
#20
Haiyang Wang, Chongyang Tang, Zhenfeng Jiang, Xiao Zhou, Jianhang Chen, Meng Na, Hong Shen, Zhiguo Lin
Hsp70 regulates α-Synuclein (α-Syn) degeneration in Parkinson's disease (PD), indicating that Hsp70 promotion may be able to prevent or reverse α-Syn-induced toxicity in PD. Additionally, it has been demonstrated that glutamine (Gln) enhances Hsp70 expression. In the present study, Gln-induced Hsp70 promotion in pheochromocytoma was investigated with reverse transcription- quantitative polymerase chain reaction and western blotting methods. Then it was observed whether heat shock factor (HSF)-1 was required for this phenomenon with an RNA interference strategy...
August 2017: Experimental and Therapeutic Medicine
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