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Compensated Shock

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https://www.readbyqxmd.com/read/28051834/interferon-%C3%AE-induced-protein-10-in-dengue-virus-infection
#1
P Fallahi, G Elia
Dengue virus (DENV) infection causes dengue fever, dengue hemorrhagic fever, or dengue shock syndrome. Interferons (IFNs), and IFN-γ dependent chemokines, chemokine (C-X-C motif) ligand (CXCL)10/IFN-γ-induced protein 10 (IP-10), CXCL9/MIG and CXCL11/I-TAC, and their common receptor chemokine (C-X-C motif) receptor (CXCR)3 are induced by DENV infection; however it has been shown that the latter two could not compensate for the absence of IP-10. This paper reviews studies about DENV and IP-10. Evidences show the importance of IP-10 induction during DENV infection, in macrophages, lymphocytes, hepatic cells, denritic cells, in skin and in the brain...
November 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28049485/the-dangers-of-accepting-a-single-diagnosis-case-report-of-concurrent-plasmodium-knowlesi-malaria-and-dengue-infection
#2
Soon Eu Chong, Rhendra Hardy Mohamad Zaini, Siti Suraiya, Kok Tong Lee, Jo Anne Lim
BACKGROUND: Dengue and malaria are two common, mosquito-borne infections, which may lead to mortality if not managed properly. Concurrent infections of dengue and malaria are rare due to the different habitats of its vectors and activities of different carrier mosquitoes. The first case reported was in 2005. Since then, several concurrent infections have been reported between the dengue virus (DENV) and the malaria protozoans, Plasmodium falciparum and Plasmodium vivax. Symptoms of each infection may be masked by a simultaneous second infection, resulting in late treatment and severe complications...
January 3, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28047474/su-f-j-10-sliding-mode-control-of-a-sma-actuated-active-flexible-needle-for-medical-procedures
#3
T Podder
PURPOSE: In medical interventional procedures such as brachytherapy, ablative therapies and biopsy precise steering and accurate placement of needles are very important for anatomical obstacle avoidance and accurate targeting. This study presents the efficacy of a sliding mode controller for Shape Memory Alloy (SMA) actuated flexible needle for medical procedures. METHODS: Second order system dynamics of the SMA actuated active flexible needle was used for deriving the sliding mode control equations...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27998318/management-of-severe-dengue-hemorrhagic-fever-and-bleeding-complications-in-a-primigravida%C3%A2-patient-a-case-report
#4
Hori Hariyanto, Corry Quando Yahya, Primartanto Wibowo, Oloan E Tampubolon
BACKGROUND: The incidence of dengue hemorrhagic fever is increasing among the adult population living in endemic areas. The disease carries a 0.73% fatality rate for the general population, but what happens when the disease strikes a special subpopulation group, the obstetrics? Perhaps the important question specific to this special subpopulation revolves around the right time and mode of delivery under severe coagulopathy and plasma leakage in conditions of imminent delivery. CASE PRESENTATION: A 24-year-old primigravid Sundanese woman presented to our intensive care unit due to acute pulmonary edema secondary to massive plasma leakage caused by severe dengue...
December 20, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27995459/epac-activation-inhibits-il-6-induced-cardiac-myocyte-dysfunction
#5
Huiling Jin, Takayuki Fujita, Meihua Jin, Reiko Kurotani, Yuko Hidaka, Wenqian Cai, Kenji Suita, Rajesh Prajapati, Chen Liang, Yoshiki Ohnuki, Yasumasa Mototani, Masanari Umemura, Utako Yokoyama, Motohiko Sato, Satoshi Okumura, Yoshihiro Ishikawa
Pro-inflammatory cytokines are released in septic shock and impair cardiac function via the Jak-STAT pathway. It is well known that sympathetic and thus catecholamine signaling is activated thereafter to compensate for cardiac dysfunction. The mechanism of such compensation by catecholamine signaling has been traditionally understood to be cyclic AMP-dependent protein kinase (PKA)-mediated enforcement of cardiac contractility. We hypothesized that the exchange protein activated by cAMP (Epac), a newly identified target of cAMP signaling that functions independently of PKA, also plays a key role in this mechanism...
December 19, 2016: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/27981689/polymersome-popping-by-light-induced-osmotic-shock-under-temporal-spatial-and-spectral-control
#6
Ariane Peyret, Emmanuel Ibarboure, Arnaud Tron, Louis Beauté, Ruben Rust, Olivier Sandre, Nathan D McClenaghan, Sebastien Lecommandoux
The light-triggered, programmable rupture of cell-sized vesicles is described, with particular emphasis on self-assembled polymersome capsules. The mechanism involves a hypotonic osmotic imbalance created by the accumulation of photogenerated species inside the lumen, which cannot be compensated owing to the low water permeability of the membrane. This simple and versatile mechanism can be adapted to a wealth of hydrosoluble molecules, which are either able to generate reactive oxygen species or undergo photocleavage...
December 16, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27941230/the-possible-role-of-the-vagal-nervous-system-in-the-recovery-of-the-blood-pressure-control-after-cardiac-arrest-a-porcine-model-study
#7
Mario Lavanga, Giuseppe Baselli, Francesca Fumagalli, Giuseppe Ristagno, Manuela Ferrario
Previous studies have proved that the baroreceptor reflex (baroreflex) control of heart rate can be used for stratification of post-infarction population and, in general, cardiovascular disease populations. Many methods have been proposed to estimate the so-called baroreflex sensitivity (BRS) expressed as ms mmhg(-1). Most of the studies that exploit BRS focus mainly on acute myocardial infarction (AMI) and there are no important works that investigate the role of BRS immediately after cardiac arrest (CA). The present work is a continuation of the published work of Ristagno et al (2014 Shock 41 72-8)...
January 2017: Physiological Measurement
https://www.readbyqxmd.com/read/27807020/miliary-tuberculosis-in-an-immunocompetent-male-with-a-fatal-outcome
#8
Louise Dunphy, Elizabeth Keating, T Parke
A man aged 33 years, born in Nepal, but resident in the UK for 7 years presented to the emergency department with a 4-day history of general malaise, fever (temperature 38.6°C) and a non-productive cough. His medical history was unremarkable and no high-risk behaviour was identified. Clinical examination confirmed decreased air entry bilaterally with bibasal crackles. He was tachycardic, with a heart rate of 120 bpm. Further investigation with a 12-lead ECG confirmed supraventricular tachycardia (SVT) which was terminated with vagal manoeuvres...
November 2, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27719738/bendamustine-induced-nephrogenic-diabetes-insipidus%C3%A2
#9
Benjamin A Derman, Milli Jain, Elizabeth A McAninch, Casey Gashti
A 59-year-old man presented with polyuria and polydipsia immediately following his sixth cycle of rituximab and bendamustine for chronic lymphocytic leukemia. He initially compensated by increasing his oral fluid intake at home, but later developed septic shock and was admitted with orders to be kept nil per os (NPO). This prompted an episode of acute hypernatremia during which he exhibited continued polyuria with inappropriately dilute urine. Desmopressin challenge yielded no response in the urine osmolality, indicating a nephrogenic source of his diabetes insipidus (DI)...
January 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/27696787/a-pegylated-bovine-hemoglobin-as-a-potent-hemoglobin-based-oxygen-carrier
#10
Ying Wang, Linli Wang, Weili Yu, Dawei Gao, Guoxing You, Penglong Li, Shan Zhang, Jun Zhang, Tao Hu, Lian Zhao, Hong Zhou
Hemoglobin (Hb)-based oxygen carriers (HBOCs) have been used as blood substitutes in surgery medicine and oxygen therapeutics for ischemic stroke. As a potent HBOC, the PEGylated Hb has received much attention for its oxygen delivery and plasma expanding ability. Two PEGylated Hbs, Euro-Hb and MP4 have been developed for clinical trials, using human adult hemoglobin (HbA) as the original substrate. However, HbA was obtained from outdated human blood and its quantity available from this source may not be sufficient for mass production of PEGylated HbA...
October 3, 2016: Biotechnology Progress
https://www.readbyqxmd.com/read/27633137/protein-folding-activity-of-the-ribosome-is-involved-in-yeast-prion-propagation
#11
Marc Blondel, Flavie Soubigou, Justine Evrard, Phu Hai Nguyen, Naushaba Hasin, Stéphane Chédin, Reynald Gillet, Marie-Astrid Contesse, Gaëlle Friocourt, Guillaume Stahl, Gary W Jones, Cécile Voisset
6AP and GA are potent inhibitors of yeast and mammalian prions and also specific inhibitors of PFAR, the protein-folding activity borne by domain V of the large rRNA of the large subunit of the ribosome. We therefore explored the link between PFAR and yeast prion [PSI(+)] using both PFAR-enriched mutants and site-directed methylation. We demonstrate that PFAR is involved in propagation and de novo formation of [PSI(+)]. PFAR and the yeast heat-shock protein Hsp104 partially compensate each other for [PSI(+)] propagation...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27498532/chemotherapy-analysis-in-massive-transfusion-syndrome
#12
Bratislav Stanković, Goran Stojanović
INTRODUCTION: Massive transfusion is defined as blood transfusion in quantities equal to or greater than the estimated patients' blood volume over a relatively short period of time (3-4 hours). The study was aimed at analyzing the application of chemotherapy in treatment of patients with acute massive bleeding and evaluating the results of hemostasis and platelet counts screening tests in the patients receiving massive transfusions. MATERIAL AND METHODS: Attempts were made to fully compensate hemostatic factors in 24 patients (14 male and 10 female, aged 23 to 76 years) with acute massive and uncontrolled surgical bleeding (polytrauma, abdominal aortic aneurysm, digestive tract bleeding as a result of a farina overdose, mortus fetus) over the five-year period, wherein a circulating patients' blood volume was compensated over a relatively short period of time...
January 2016: Medicinski Pregled
https://www.readbyqxmd.com/read/27233944/hsp90-binding-immunophilin-fkbp51-forms-complexes-with%C3%A2-htert-enhancing-telomerase-activity
#13
Mariana Lagadari, Nadia R Zgajnar, Luciana I Gallo, Mario D Galigniana
FK506-binding proteins are members of the immunophilin family of proteins. Those immunophilins associated to the 90-kDa-heat-shock protein, Hsp90, have been proposed as potential modulators of signalling cascade factors chaperoned by Hsp90. FKBP51 and FKBP52 are the best characterized Hsp90-bound immunophilins first described associated to steroid-receptors. The reverse transcriptase subunit of telomerase, hTERT, is also an Hsp90 client-protein and is highly expressed in cancer cells, where it is required to compensate the loss of telomeric DNA after each successive cell division...
August 2016: Molecular Oncology
https://www.readbyqxmd.com/read/27172155/the-compensatory-reserve-index-following-injury-results-of-a-prospective-clinical-trial
#14
Camille L Stewart, Jane Mulligan, Greg Z Grudic, Mark E Talley, Gregory J Jurkovich, Steven L Moulton
INTRODUCTION: Humans are able to compensate for significant blood loss with little change in traditional vital signs. We hypothesized that an algorithm, which recognizes compensatory changes in photoplethysmogram (PPG) waveforms, could detect active bleeding and ongoing volume loss in injured patients. METHODS: Injured adults were prospectively enrolled at a level I trauma center. PPG data collection was conducted using a custom-made pulse oximeter. Waveform data were post-processed by an algorithm to calculate the compensatory reserve index (CRI), measured on a scale of 1 to 0, with 1 indicating fully compensated and 0 indicating no reserve, or decompensation...
September 2016: Shock
https://www.readbyqxmd.com/read/27166007/conundrum-in-an-asthma-exacerbation
#15
Barney Thomas Jesudason Isaac, Thomas McLellan, Johnson Samuel, Bernard Yung
A 66-year-old man, an asthmatic, presented with symptoms suggestive of an acute exacerbation of asthma. His arterial blood gas revealed type 1 respiratory failure (PaO2 <8 kPa or 60 mm Hg with normal or low PaCO2) with a compensated lactic acidosis. He was treated for an asthma exacerbation and sepsis. Despite treatment, his respiratory rate remained elevated although his hypoxaemia improved. There was progressive worsening of the lactic acidosis. Treatment for sepsis was augmented. Peak flow measurements were not used to assess the severity of his exacerbation nor his response to treatment...
May 10, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27147768/training-of-midwives-in-advanced-obstetrics-in-liberia
#16
Obed Dolo, Alice Clack, Hannah Gibson, Naomi Lewis, David P Southall
PROBLEM: The shortage of doctors in Liberia limits the provision of comprehensive emergency obstetric and neonatal care. APPROACH: In a pilot project, two midwives were trained in advanced obstetric procedures and in the team approach to the in-hospital provision of advanced maternity care. The training took two years and was led by a Liberian consultant obstetrician with support from international experts. LOCAL SETTING: The training took place in CB Dunbar Maternity Hospital...
May 1, 2016: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/27052732/mammalian-heat-shock-response-and-mechanisms-underlying-its-genome-wide-transcriptional-regulation
#17
Dig B Mahat, H Hans Salamanca, Fabiana M Duarte, Charles G Danko, John T Lis
The heat shock response (HSR) is critical for survival of all organisms. However, its scope, extent, and the molecular mechanism of regulation are poorly understood. Here we show that the genome-wide transcriptional response to heat shock in mammals is rapid and dynamic and results in induction of several hundred and repression of several thousand genes. Heat shock factor 1 (HSF1), the "master regulator" of the HSR, controls only a fraction of heat shock-induced genes and does so by increasing RNA polymerase II release from promoter-proximal pause...
April 7, 2016: Molecular Cell
https://www.readbyqxmd.com/read/27019517/early-health-shocks-intra-household-resource-allocation-and-child-outcomes
#18
Junjian Yi, James J Heckman, Junsen Zhang, Gabriella Conti
An open question in the literature is whether families compensate or reinforce the impact of child health shocks. Discussions usually focus on one dimension of child investment. This paper examines multiple dimensions using household survey data on Chinese child twins whose average age is 11. We find that, compared with a twin sibling who did not suffer from negative early health shocks at ages 0-3, the other twin sibling who did suffer negative health shocks received RMB 305 more in terms of health investments, but received RMB 182 less in terms of educational investments in the 12 months prior to the survey...
November 2015: Economic Journal
https://www.readbyqxmd.com/read/26974423/comparative-evaluation-of-crystalloid-resuscitation-rate-in-a-human-model-of-compensated-haemorrhagic-shock
#19
Loretta Ho, Lawrence Lau, Leonid Churilov, Bernhard Riedel, Larry McNicol, Robert G Hahn, Laurence Weinberg
INTRODUCTION: The most effective rate of fluid resuscitation in haemorrhagic shock is unknown. METHODS: We performed a randomized crossover pilot study in a healthy volunteer model of compensated haemorrhagic shock. Following venesection of 15 mL/kg of blood, participants were randomized to 20 mL/kg of crystalloid over 10 min (FAST treatment) or 30 min (SLOW treatment). The primary end point was oxygen delivery (DO2). Secondary end points included pressure and flow-based haemodynamic variables, blood volume expansion, and clinical biochemistry...
August 2016: Shock
https://www.readbyqxmd.com/read/26962444/axonal-maintenance-glia-exosomes-and-heat-shock-proteins
#20
REVIEW
Michael Tytell, Raymond J Lasek, Harold Gainer
Of all cellular specializations, the axon is especially distinctive because it is a narrow cylinder of specialized cytoplasm called axoplasm with a length that may be orders of magnitude greater than the diameter of the cell body from which it originates. Thus, the volume of axoplasm can be much greater than the cytoplasm in the cell body. This fact raises a logistical problem with regard to axonal maintenance. Many of the components of axoplasm, such as soluble proteins and cytoskeleton, are slowly transported, taking weeks to months to travel the length of axons longer than a few millimeters after being synthesized in the cell body...
2016: F1000Research
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