keyword
MENU ▼
Read by QxMD icon Read
search

Irreversible Shock

keyword
https://www.readbyqxmd.com/read/29860440/discrete-roles-of-trehalose-and-hsp104-in-inhibition-of-protein-aggregation-in-yeast-cells
#1
Ratnika Sethi, Shantanu S Iyer, Eshita Das, Ipsita Roy
Heat shock response (HSR) is an important element of cellular homeostasis. In yeast, HSR comprises of the heat shock proteins (Hsps) and the osmolytes trehalose and glycerol. The respective roles of trehalose and Hsp104 in regulating protein aggregation remain ambiguous. We report that trehalose and Hsp104 are important during the early stages of protein aggregation, i.e. when the process is still reversible. This corroborates the earlier reported role of trehalose being an inhibitor of protein folding. Under in vitro conditions, trehalose is able to restore the GdHCl-induced loss of ATPase activity of recombinant Hsp104 to almost its original level...
May 30, 2018: FEMS Yeast Research
https://www.readbyqxmd.com/read/29845210/research-progress-on-human-genes-involved-in-the-pathogenesis-of-glaucoma-review
#2
Hong-Wei Wang, Peng Sun, Yao Chen, Li-Ping Jiang, Hui-Ping Wu, Wen Zhang, Feng Gao
Glaucoma is the leading cause of irreversible blindness globally. It is known that the incidence of glaucoma is closely associated with inheritance. A large number of studies have suggested that genetic factors are involved in the occurrence and development of glaucoma, and even affect the drug sensitivity and prognosis of glaucoma. In the present review, 22 loci of glaucoma are presented, including the relevant genes (myocilin, interleukin 20 receptor subunit B, optineurin, ankyrin repeat‑ and SOCS box‑containing protein 10, WD repeat‑containing protein 36, EGF‑containing fibulin‑like extracellular matrix protein 1, neurotrophin 4, TANK‑binding kinase 1, cytochrome P450 subfamily I polypeptide 1, latent transforming growth factor β binding protein 2 and TEK tyrosine kinase endothelial) and 74 other genes (including toll‑like receptor 4, sine oculis homeobox Drosophila homolog of 1, doublecortin‑like kinase 1, RE repeats‑encoding gene, retinitis pigmentosa GTPase regulator‑interacting protein, lysyl oxidase‑like protein 1, heat‑shock 70‑kDa protein 1A, baculoviral IAP repeat‑containing protein 6, 5,10‑methylenetetrahydrofolate reductase and nitric oxide synthase 3 and nanophthalmos 1) that are more closely associated with glaucoma...
May 23, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29757064/factors-associated-with-the-effectiveness-of-intravenous-administration-of-chlorpromazine-for-delirium-in-patients-with-terminal-cancer
#3
Hideaki Hasuo, Kenji Kanbara, Ryohei Fujii, Kazuki Uchitani, Hiroko Sakuma, Mikihiko Fukunaga
BACKGROUND: Delirium in patients with terminal cancer is irreversible and increases treatment resistance, which leads to a deterioration in quality of life. OBJECTIVE: To investigate factors affecting the effectiveness and safety of intravenous chlorpromazine for irreversible delirium in patients with terminal cancer. DESIGN/MEASUREMENTS: Multiple regression analysis for factors affecting treatment effectiveness was carried out based on a retrospective comparison between responders and nonresponders to intravenous chlorpromazine...
May 14, 2018: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/29644151/trans-cranial-doppler-as-an-ancillary-study-supporting-irreversible-brain-injury-in-a-post-cardiac-arrest-patient-on-extracorporeal-membrane-oxygenation
#4
Naresh Mullaguri, Aarti Sarwal, Nakul Katyal, Premkumar Nattanamai, Pravin George, Christopher R Newey
Obtaining neuroimaging in patients on cardiopulmonary support devices such as extracorporeal membrane oxygenation (ECMO) can be challenging, given the complexities in monitoring, instrumentation, and associated hemodynamic lability. Transcranial Doppler (TCD) is used as an ancillary test for the assessment of cerebral circulatory arrest, but its use in non-pulsatile blood flow in venoarterial (VA) ECMO is not well described. We report the use of TCD in a patient on VA ECMO post-cardiac arrest for evaluation of death by neurological criteria...
February 6, 2018: Curēus
https://www.readbyqxmd.com/read/29626131/pervasive-contingency-and-entrenchment-in-a-billion-years-of-hsp90-evolution
#5
Tyler N Starr, Julia M Flynn, Parul Mishra, Daniel N A Bolon, Joseph W Thornton
Interactions among mutations within a protein have the potential to make molecular evolution contingent and irreversible, but the extent to which epistasis actually shaped historical evolutionary trajectories is unclear. To address this question, we experimentally measured how the fitness effects of historical sequence substitutions changed during the billion-year evolutionary history of the heat shock protein 90 (Hsp90) ATPase domain beginning from a deep eukaryotic ancestor to modern Saccharomyces cerevisiae We found a pervasive influence of epistasis...
April 24, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29618581/causes-and-predictors-of-30-day-readmission-in-patients-with-acute-myocardial-infarction-and-cardiogenic-shock
#6
Mahek Shah, Shantanu Patil, Brijesh Patel, Manyoo Agarwal, Carlos D Davila, Lohit Garg, Sahil Agrawal, Navin K Kapur, Ulrich P Jorde
BACKGROUND: Acute myocardial infarction (AMI) occurs as a result of irreversible damage to cardiac myocytes secondary to lack of blood supply. Cardiogenic shock complicating AMI has significant associated morbidity and mortality, and data on postdischarge outcomes are limited. METHODS AND RESULTS: We derived the study cohort of patients with AMI and cardiogenic shock from the 2013 to 2014 Healthcare Cost and Utilization Project National Readmission Database. Incidence, predictors, and causes of 30-day readmissions were analyzed...
April 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29602292/heat-shock-proteins-and-cardiovascular-disease
#7
B Rodríguez-Iturbe, R J Johnson
The development of stress drives a host of biological responses that include the overproduction of a family of proteins named heat shock proteins (HSPs), because they were initially studied after heat exposure. HSPs are evolutionarily preserved proteins with a high degree of interspecies homology. HSPs are intracellular proteins that also have extracellular expression. The primary role of HSPs is to protect cell function by preventing irreversible protein damage and facilitating molecular traffic through intracellular pathways...
March 1, 2018: Physiology International
https://www.readbyqxmd.com/read/29596499/specific-protein-carbonylation-in-human-breast-cancer-tissue-compared-to-adjacent-healthy-epithelial-tissue
#8
Baikuntha Aryal, V Ashutosh Rao
Protein carbonylation is an irreversible post-translational modification induced by severe oxidative stress. Reactive oxygen species (ROS) are constantly produced in cells and play important roles in both cancer progression and cancer suppression. ROS levels can be higher in tumor compared to surrounding healthy tissue but ROS-induced specific protein carbonylation and its unique role in cancer progression or suppression is poorly understood. In this study, we utilized previously validated ELISA and western blot methods to analyze the total and specific protein carbonylation in flash-frozen human breast cancer and matched adjacent healthy tissue to compare relative total, and specific protein carbonylation...
2018: PloS One
https://www.readbyqxmd.com/read/29564081/patterns-of-alternative-splicing-vary-between-species-during-heat-stress
#9
Sumetha Kannan, Gillian Halter, Tanya Renner, Elizabeth R Waters
Plants have evolved a variety of mechanisms to respond and adapt to abiotic stress. High temperature stress induces the heat shock response. During the heat shock response a large number of genes are up-regulated, many of which code for chaperone proteins that prevent irreversible protein aggregation and cell death. However, it is clear that heat shock is not the only mechanism involved in the plant heat stress response. Alternative splicing (AS) is also important during heat stress since this post-transcriptional regulatory mechanism can produce significant transcriptome and proteome variation...
March 2018: AoB Plants
https://www.readbyqxmd.com/read/29499399/cancer-cells-biomineralize-ionic-gold-into-nanoparticles-microplates-via-secreting-defense-proteins-with-specific-gold-binding-peptides
#10
Ajay Vikram Singh, Timotheus Jahnke, Vimal Kishore, Byung-Wook Park, Madu Batuwangala, Joachim Bill, Metin Sitti
Cancer cells have the capacity to synthesize nanoparticles (NPs). The detailed mechanism of this process is not very well documented. We report the mechanism of biomineralization of aqueous gold chloride into NPs and microplates in the breast-cancer cell line MCF7. Spherical gold NPs are synthesized in these cells in the presence of serum in the culture media by the reduction of HAuCl4 . In the absence of serum, the cells exhibit gold microplate formation through seed-mediate growth albeit slower reduction...
April 15, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29445820/a-drastic-influence-of-the-anion-nature-and-concentration-on-high-pressure-intrusion-extrusion-of-electrolyte-solutions-in-silicalite-1
#11
A Ryzhikov, H Nouali, T J Daou, J Patarin
High pressure intrusion-extrusion of concentrated solutions of sodium salts in a pure-silica MFI-type zeolite (Silicalite-1) was studied for potential applications in mechanical energy absorption and storage. It was discovered that the anion nature has a drastic influence on the behavior and the energetic performances of "Silicalite-1 - concentrated Na+ X- solution" systems, where X = Cl- , Br- , I- , NO2 - , NO3 - , ClO4 - and CrO4 2- . In the case of NaNO2 , NaClO4 , Na2 CrO4 , and NaI a combination of bumper and shock-absorber behaviors with a partial irreversible solution intrusion was observed, whereas a fully reversible spring behavior is demonstrated for the intrusion-extrusion of NaBr, NaCl and NaNO3 solutions...
February 28, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29395201/duration-of-extracorporeal-membrane-oxygenation-support-and-survival-in-cardiovascular-surgery-patients
#12
Klaus Distelmaier, Dominik Wiedemann, Christina Binder, Thomas Haberl, Daniel Zimpfer, Gottfried Heinz, Herbert Koinig, Alessia Felli, Barbara Steinlechner, Alexander Niessner, Günther Laufer, Irene M Lang, Georg Goliasch
OBJECTIVE: The overall therapeutic goal of venoarterial extracorporeal membrane oxygenation (ECMO) in patients with postcardiotomy shock is bridging to myocardial recovery. However, in patients with irreversible myocardial damage prolonged ECMO treatment would cause a delay or even withholding of further permanent potentially life-saving therapeutic options. We therefore assessed the prognostic effect of duration of ECMO support on survival in adult patients after cardiovascular surgery...
June 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29390437/chronic-primary-adrenal-insufficiency-after-unilateral-adrenonephrectomy-a-case-report
#13
Satoshi Yoshiji, Kimitaka Shibue, Toshihito Fujii, Takeshi Usui, Keisho Hirota, Daisuke Taura, Mayumi Inoue, Masakatsu Sone, Akihiro Yasoda, Nobuya Inagaki
RATIONALE: Unilateral adrenalectomy as part of surgical resection of renal cell carcinoma (RCC) is not thought to increase the risk of chronic adrenal insufficiency, as the contralateral adrenal gland is assumed to be capable of compensating for the lost function of the resected gland. However, recent studies have indicated that adrenalectomy might cause irreversible impairment of the adrenocortical reserve. We describe a case of chronic primary adrenal insufficiency in a 68-year-old man who previously underwent unilateral adrenonephrectomy, which was complicated by severe postoperative adrenal stress that involved cardiopulmonary disturbance and systemic infection...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29305323/polyhydroxyalkanoates-pha-production-from-phenol-in-an-acclimated-consortium-batch-study-and-impacts-of-operational-conditions
#14
Yi Zhang, Apiredan Wusiman, Xiang Liu, Chunli Wan, Duu-Jong Lee, JooHwa Tay
Microbial intracellular biopolymer PHA was synthesized from toxic pollutant phenol by an acclimated consortium. Various operational conditions were experimented for their effects on biomass growth and PHA accumulation. Carbon to nitrogen ratios from 5 to 40 (w/w) showed little impact, as did the levels of Fe, Ca and Mg in a short term. Acidic pH inhibited both growth and PHA synthesis, and an optimal dissolved oxygen level of 1-4 mg L-1 was identified. Low temperature (7 °C) significantly slowed but did not totally repress microbial activities...
February 10, 2018: Journal of Biotechnology
https://www.readbyqxmd.com/read/29301492/effect-of-grm7-polymorphisms-on-the-development-of-noise-induced-hearing-loss-in-chinese-han-workers-a-nested-case-control-study
#15
Peipei Yu, Jie Jiao, Guoshun Chen, Wenhui Zhou, Huanling Zhang, Hui Wu, Yanhong Li, Guizhen Gu, Yuxin Zheng, Yue Yu, Shanfa Yu
BACKGROUND: Noise-induced hearing loss (NIHL) is a complex, irreversible disease caused by the interaction of genetic and environmental factors. In recent years, a great many studies have been done to explore the NIHL susceptibility genes among humans. So far, high powerful detections have been founded that genes of potassium ion channel genes (KCNQ4 and KCNE1), catalase (CAT), protocadherin 15 (PCDH15), myosin 14 (MYH14) and heart shock protein (HSP70) which have been identified in more than one population may be associated with the susceptibility to NIHL...
January 5, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/29290506/thigh-emphysema-as-the-initial-presentation-of-colon-ischemia
#16
Chin-Chuan Hsu, Ping-Yuan Chen, Chih-Cheng Lai
The incidence of colon ischemia has increased in recent years, and is associated with high morbidity and mortality. The typical presentations of colon ischemia include abdominal pain, bloody diarrhea, and in severe case, ileus, fever and peritonitis. Here, we document a rare case of colon ischemia presenting with subcutaneous and intramuscular emphysema of the thigh. A 76-year-old woman presented to the emergency department for left thigh pain for three days. Physical examination revealed tenderness without obvious crepitus, erythema or swelling over the left groin area and a soft abdomen without tenderness...
March 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29247810/surgical-revascularization-of-the-celiac-artery-for-persistent-intestinal-ischemia-in-short-bowel-syndrome
#17
Arnaud Roussel, Alexandre Nuzzo, Quentin Pellenc, Yves Castier, Romain De Blic, Pierre Cerceau, Célia Boulitrop, Mathieu Coblence, Sonia Aguir, Pierre Mordant, Léon Maggiori, Audrey Huguet, Annie Sibert, Francisca Joly, Olivier Corcos
BACKGROUND AND OBJECTIVES: Without prompt superior mesenteric artery (SMA) revascularization, acute mesenteric ischemia (AMI) frequently leads to death or short bowel syndrome (SBS). In SBS patients, persistent or chronic intestinal ischemia (PII) of the remnant bowel can lead to recurrences of AMI. Since SMA revascularization is sometimes unfeasible, celiac artery (CA) revascularization may improve blood supply to the remnant bowel. The aim of this study was to describe and to assess our experience of the CA revascularization in case of SMA occlusion unsuitable for revascularization in the setting of PII in SBS patients...
January 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29246446/febrile-temperature-reprograms-by-redox-mediated-signaling-the-mitochondrial-metabolic-phenotype-in-monocyte-derived-dendritic-cells
#18
Marta Menga, Rosa Trotta, Rosella Scrima, Consiglia Pacelli, Veronica Silvestri, Claudia Piccoli, Nazzareno Capitanio, Arcangelo Liso
Fever-like hyperthermia is known to stimulate innate and adaptive immune responses. Hyperthermia-induced immune stimulation is also accompanied with, and likely conditioned by, changes in the cell metabolism and, in particular, mitochondrial metabolism is now recognized to play a pivotal role in this context, both as energy supplier and as signaling platform. In this study we asked if challenging human monocyte-derived dendritic cells with a relatively short-time thermal shock in the fever-range, typically observed in humans, caused alterations in the mitochondrial oxidative metabolism...
March 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29241382/causes-of-mortality-in-icu-acquired-weakness
#19
Linda van Wagenberg, Esther Witteveen, Luuk Wieske, Janneke Horn
BACKGROUND: Intensive care unit-acquired weakness (ICU-AW) is a common complication of critical illness and is associated with increased mortality, longer mechanical ventilation and longer hospital stay. Little is known about the causes of mortality in patients with ICU-AW. In this study, we aimed to give an overview of the causes of death in a population diagnosed with ICU-AW during hospital admission. METHODS: Data from a prospective cohort study in the mixed medical-surgical ICU of the Academic Medical Center in Amsterdam were used...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/29135941/the-small-heat-shock-protein-%C3%AE-crystallin-b-shows-neuroprotective-properties-in-a-glaucoma-animal-model
#20
Fabian Anders, Aiwei Liu, Carolina Mann, Julia Teister, Jasmin Lauzi, Solon Thanos, Franz H Grus, Norbert Pfeiffer, Verena Prokosch
Glaucoma is a neurodegenerative disease that leads to irreversible retinal ganglion cell (RGC) loss and is one of the main causes of blindness worldwide. The pathogenesis of glaucoma remains unclear, and novel approaches for neuroprotective treatments are urgently needed. Previous studies have revealed significant down-regulation of α-crystallin B as an initial reaction to elevated intraocular pressure (IOP), followed by a clear but delayed up-regulation, suggesting that this small heat-shock protein plays a pathophysiological role in the disease...
November 14, 2017: International Journal of Molecular Sciences
keyword
keyword
116823
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"