keyword
MENU ▼
Read by QxMD icon Read
search

SI dysfunction

keyword
https://www.readbyqxmd.com/read/28921464/posttranslational-modification-control-of-inflammatory-signaling
#1
Yibo Si, Yunlu Zhang, Zijuan Chen, Ruixue Zhou, Yihua Zhang, Doudou Hao, Dapeng Yan
Inflammation is usually the defensive reaction of the immune system to the invasion of pathogen and the exogenous objects. The activation of inflammation helps our body to eliminate pathogenic microbe, virus, and parasite harming our health, while under many circumstances inflammation is the direct cause of the pathological damage in tissues and dysfunction of organs. The posttranslational modification (PTM) of the inflammatory pathways, such as TLR pathways, RLR pathways, NLR pathway, intracellular DNA sensors, intracellular RNA sensors, and inflammasomes, is crucial in the regulation of these signaling trails...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28915447/oxidative-stress-induced-modulation-of-platelet-integrin-%C3%AE-2b%C3%AE-3-expression-and-shedding-may-predict-the-risk-of-major-bleeding-in-heart-failure-patients-supported-by-continuous-flow-left-ventricular-assist-devices
#2
Nandan K Mondal, Zengsheng Chen, Jaimin R Trivedi, Erik N Sorensen, Si M Pham, Mark S Slaughter, Bartley P Griffith, Zhongjun J Wu
INTRODUCTION: Oxidative stress and platelet integrin α2bβ3 plays important role in the process of hemostasis and thrombosis. We hypothesized that device-induced patient specific oxidative stress and integrin α2bβ3 shedding may be linked to major bleeding complication (MBC) in heart failure (HF) patients supported by continuous flow left ventricular assist devices (CF-LVADs). MATERIALS AND METHODS: We recruited 47patients implanted with CF-LVADs and 15 healthy volunteers...
September 8, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28910549/upregulation-of-%C3%AE-enolase-protects-cardiomyocytes-from-phenylephrine-induced-hypertrophy
#3
Si Gao, Xueping Liu, Lihua Wei, Jing Lu, Peiqing Liu
Cardiac hypertrophy often refers to the abnormal growth of heart muscle through a variety of factors. The mechanisms of cardiomyocyte hypertrophy have been extensively investigated using neonatal rat cardiomyocytes treated with phenylephrine. α-Enolase is a glycolytic enzyme with "multifunctional jobs" beyond its catalytic activity. Its possible contribution to cardiac dysfunction remains to be determined. The present study aimed to investigate the change of α-enolase during cardiac hypertrophy and explore its role in this pathological process...
September 14, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28887278/comparison-of-unilateral-and-bilateral-craniotomy-for-the-treatment-of-bilateral-middle-cerebral-artery-aneurysms-anatomical-and-clinical-parameters-and-surgical-outcomes
#4
Min Jai Cho, Chang Wan Oh, O-Ki Kwon, Hyoung Soo Byoun, Si Un Lee, T Kim, Seung Pil Ban, Jae Seung Bang
OBJECTIVE: To compare two craniotomy approaches (unilateral and bilateral) in terms of anatomical and clinical parameters and surgical outcomes. METHODS: From January 2011 to December 2014, 19 patients with bilateral unruptured middle cerebral artery (MCA) aneurysms were treated with unilateral craniotomy (group 1) and 10 patients were treated with bilateral mini-craniotomy (group 2). We compared demographic data, characteristics of aneurysms, radiological and clinical parameters, postoperative complications, and surgical outcomes between the groups...
September 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28883638/mild-traumatic-brain-injury-induces-memory-deficits-with-alteration-of-gene-expression-profile
#5
Yawen Luo, Haiyan Zou, Yili Wu, Fang Cai, Si Zhang, Weihong Song
Repeated mild traumatic brain injury (rmTBI), the most common type of traumatic brain injuries, can result in neurological dysfunction and cognitive deficits. However, the molecular mechanisms and the long-term consequence of rmTBI remain elusive. In this study, we developed a modified rmTBI mouse model and found that rmTBI-induced transient neurological deficits and persistent impairments of spatial memory function. Furthermore, rmTBI mice had long-lasting detrimental effect on cognitive function, exhibiting memory deficits even 12 weeks after rmTBI...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877212/selenium-deficiency-induced-alterations-in-ion-profiles-in-chicken-muscle
#6
Haidong Yao, Xia Zhao, Ruifeng Fan, Hamid Sattar, Jinxin Zhao, Wenchao Zhao, Ziwei Zhang, Yufeng Li, Shiwen Xu
Ion homeostasis plays important roles in development of metabolic diseases. In the present study, we examined the contents and distributions of 25 ions in chicken muscles following treatment with selenium (Se) deficiency for 25 days. The results revealed that in chicken muscles, the top ranked microelements were silicon (Si), iron (Fe), zinc (Zn), aluminum (Al), copper (Cu) and boron (B), showing low contents that varied from 292.89 ppb to 100.27 ppm. After Se deficiency treatment, essential microelements [Cu, chromium (Cr), vanadium (V) and manganese (Mn)], and toxic microelements [cadmium (Cd) and mercury (Hg)] became more concentrated (P < 0...
2017: PloS One
https://www.readbyqxmd.com/read/28869897/thalidomide-alleviates-postoperative-pain-and-spatial-memory-deficit-in-aged-rats
#7
Peng Guo, Si-Ping Hu
Pain is a major risk factor of post-operative cognitive dysfunction (POCD) in aged population. We investigated the effects of thalidomide, an anti-inflammatory and analgesic drug, on POCD in aged rats, and also explored the underlying mechanisms. Laparotomy was performed under anesthesia in aged rats (24-25 months) to establish POCD models. Thalidomide (5-50mg/kg) was intraperitoneally administered immediately after laparotomy. Within 12h after the operation, pain symptoms were assessed by rat grimace scale (RGS)...
September 1, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28866722/changes-in-intensity-of-neurotic-symptoms-associated-with-reduction-of-suicidal-ideation-in-patients-who-underwent-psychotherapy-in-the-day-hospital-for-the-treatment-of-neurotic-and-behavioral-disorders
#8
Paweł Rodziński, Krzysztof Rutkowski, Agnieszka Murzyn, Jerzy A Sobański, Katarzyna Cyranka, Edyta Dembińska, Karolina Grządziel, Katarzyna Klasa, Michał Mielimąka, Łukasz Müldner-Nieckowski, Bogna Smiatek-Mazgaj
OBJECTIVES: Analysis of associations between changes in the intensity of neurotic symptoms and reduction of suicidal ideation (SI) or lack of SI reduction, in patients who underwent a course of intensive psychotherapy conducted in integrative approach with predominance of psychodynamic approach in a day hospital. METHODS: Symptom Checklist KO"O" and Life Inventory completed by 461 women and 219 men treated in the psychotherapeutic day hospital due to neurotic, behavioral or personality disorders between 2005-2013...
June 18, 2017: Psychiatria Polska
https://www.readbyqxmd.com/read/28864277/neolignans-from-leaves-of-nectandra-leucantha-lauraceae-display-in%C3%A2-vitro-antitrypanosomal-activity-via-plasma-membrane-and-mitochondrial-damages
#9
Simone S Grecco, Thais A Costa-Silva, Gerold Jerz, Fernanda S de Sousa, Vinicius S Londero, Mariana K Galuppo, Marta L Lima, Bruno J Neves, Carolina H Andrade, Andre G Tempone, João Henrique G Lago
Chagas disease is a neglected tropical disease, caused by the protozoan parasite Trypanosoma cruzi, which affects more than eight million people in Tropical and Subtropical countries especially in Latin America. Current treatment is limited to nifurtimox and benznidazole, both with reduced effectiveness and high toxicity. In this work, the n-hexane extract from leaves of Nectandra leucantha (Lauraceae) displayed in vitro antitrypanosomal activity against T. cruzi. Using several chromatographic steps, four related neolignans were isolated and chemically characterized as dehydrodieugenol B (1), 1-(8-propenyl)-3-[3'-methoxy-1'-(8-propenyl)-phenoxy]-4,5-dimethoxybenzene (2), 1-[(7S)-hydroxy-8-propenyl]-3-[3'-methoxy-1'-(8'-propenyl)-phenoxy]-4-hydroxy-5-methoxybenzene (3), and 1-[(7S)-hydroxy-8-propenyl]-3-[3'-methoxy-1'-(8'-propenyl)-phenoxy]-4,5-dimethoxybenzene (4)...
August 31, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28862023/what-is-the-most-suitable-mr-signal-index-for-quantitative-evaluation-of-placental-function-using-half-fourier-acquisition-single-shot-turbo-spin-echo-compared-with-t2-relaxation-time
#10
Kyoko Nakao Kameyama, Aki Kido, Yuki Himoto, Yusaku Moribata, Sachiko Minamiguchi, Ikuo Konishi, Kaori Togashi
Background Half-Fourier acquisition single-shot turbo spin-echo (HASTE) imaging is now widely used for placental and fetal imaging because of its rapidity and low sensitivity to fetal movement. If placental dysfunction is also predicted by quantitative value obtained from HASTE image, then it might be beneficial for evaluating placental wellbeing. Purpose To ascertain the most suitable magnetic resonance (MR) signal indexes reflecting placental function using HASTE imaging. Material and Methods This retrospective study included 37 consequent patients who had given informed consent to MR imaging (MRI) examinations...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28827409/genomic-and-functional-integrity-of-the-hematopoietic-system-requires-tolerance-of-oxidative-dna-lesions
#11
Ana Martín-Pardillos, Anastasia Tsaalbi-Shtylik, Si Chen, Seka Lazare, Ronald P van Os, Albertina Dethmers-Ausema, Nima Borhan Fakouri, Matthias Bosshard, Rossana Aprigliano, Barbara van Loon, Daniela C F Salvatori, Keiji Hashimoto, Celia Dingemanse-van der Spek, Masaaki Moriya, Lene Juel Rasmussen, Gerald de Haan, Marc H G P Raaijmakers, Niels de Wind
Endogenous DNA damage is causally associated with the functional decline and transformation of stem cells that characterize ageing. DNA lesions that have escaped DNA repair can induce replication stress and genomic breaks that induce senescence and apoptosis. It is not clear how stem and proliferating cells cope with accumulating endogenous DNA lesions, and how these ultimately affect the physiology of cells and tissues. Here we have addressed these questions by investigating the hematopoietic system of mice deficient for Rev1, a core factor in DNA translesion synthesis (TLS), the post-replicative bypass of damaged nucleotides...
August 21, 2017: Blood
https://www.readbyqxmd.com/read/28816145/strain-imaging-detects-dose-dependent-segmental-cardiac-dysfunction-in-the-acute-phase-after-breast-irradiation
#12
Queenie Lo, Leia Hee, Vikneswary Batumalai, Christine Allman, Peter MacDonald, Denise Lonergan, Geoff P Delaney, Liza Thomas
PURPOSE: We examined the utility of echocardiographic 2-dimensional speckle tracking strain imaging (SI) for the evaluation of segmental myocardial dysfunction before and after radiation therapy (RT) and the relationship to dose exposure. METHODS AND MATERIALS: We prospectively recruited 40 women with left-sided breast cancer, undergoing only adjuvant RT to the left chest. Comparisons of traditional echocardiographic parameters and SI parameters at baseline and 6 weeks after RT were analyzed...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28723348/central-serotonin-attenuates-lps-induced-systemic-inflammation
#13
Clarissa M D Mota, Caroline Rodrigues-Santos, Rodrigo A R Fernández, Ruither O G Carolino, José Antunes-Rodrigues, Janete A Anselmo-Franci, Luiz G S Branco
Serotonin (5-HT) is a neuromodulator involved in several central-mediated mechanisms, such as endocrine processes, behavior, and sleep. Dysfunction of the serotonergic system is mainly linked to psychiatric disorders, but emerging evidence suggests that immune system activation may also alter brain 5-HT signaling. However, whether central 5-HT modulates systemic inflammation (SI) remains unknown. For this purpose, male Wistar rats (280-350 g, 8-9 weeks) were submitted to the experimental protocols beginning between 9 and 10 AM with the performance of injections...
July 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28715448/effect-of-synergistic-interaction-between-abnormal-adiposity-related-metabolism-and-prediabetes-on-microalbuminuria-in-the-general-population
#14
Jong Wook Choi, Il Hwan Oh, Chang Hwa Lee, Joon-Sung Park
Central obesity and related metabolic components are important risks for microalbuminuria. To describe the effects of interactions between central obesity and related metabolic components on microalbuminuria, we conducted a nation-wide, population-based interaction analysis using cardio-metabolic index (CMI) as a candidate indicator of central obesity and related abnormal lipid metabolism. We recruited native Koreans aged 20 years or older with no medical illness. A total of 5398 participants were divided into quintiles according to CMI with sex as a covariate factor...
2017: PloS One
https://www.readbyqxmd.com/read/28713383/the-toxicological-mechanisms-of-environmental-soot-black-carbon-and-carbon-black-focus-on-oxidative-stress-and-inflammatory-pathways
#15
REVIEW
Rituraj Niranjan, Ashwani Kumar Thakur
The environmental soot and carbon blacks (CBs) cause many diseases in humans, but their underlying mechanisms of toxicity are still poorly understood. Both are formed after the incomplete combustion of hydrocarbons but differ in their constituents and percent carbon contents. For the first time, "Sir Percival Pott" described soot as a carcinogen, which was subsequently confirmed by many others. The existing data suggest three main types of diseases due to soot and CB exposures: cancer, respiratory diseases, and cardiovascular dysfunctions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28710888/chronic-spinal-cord-injury-causes-upregulation-of-serotonin-5-ht-2a-and-5-ht2c-receptors-in-lumbosacral-cord-motoneurons
#16
Nailong Cao, Jianshu Ni, Xiaohu Wang, Hongjian Tu, Baojun Gu, Jiemin Si, Gang Wu, Karl-Erik Andersson
OBJECTIVES: To investigate whether the voiding dysfunction caused by spinal cord injury (SCI) in rats can be improved by i.v. administration of the serotonin (5-HT)2A/2C receptor agonist 2,5-dimethoxy-4-iodophenyl-2-aminopropanehydrochloride (DOI), and to discuss whether the mechanism can be ascribed to 5-HT2A and 5-HT 2C receptor upregulation in lumbosacral cord motoneurons. MATERIALS AND METHODS: Female Sprague-Dawley rats were divided into two groups (SCI group vs normal control [NC] group)...
July 15, 2017: BJU International
https://www.readbyqxmd.com/read/28710113/trap1-ameliorates-renal-tubulointerstitial-fibrosis-in-mice-with-unilateral-ureteral-obstruction-by-protecting-renal-tubular-epithelial-cell-mitochondria
#17
Jun-Feng Chen, Qi-Shun Wu, Yu-Xian Xie, Bo-Lin Si, Ping-Ping Yang, Wen-Yan Wang, Qin Hua, Qing He
Mitochondrial dysfunction causes renal tubular epithelial cell injury and promotes cell apoptosis and renal tubulointerstitial fibrosis (TIF) progression. TNF receptor-associated protein 1 (TRAP1) is a molecular chaperone protein that is localized in mitochondria. It plays an important role in cell apoptosis; however, its functional mechanism in TIF remains unclear. In this study, we observed the effects of TRAP1 in renal tubular epithelial cell mitochondria in mice with unilateral ureteral obstruction and its function in cell apoptosis and TIF...
July 14, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28697842/-research-advances-in-immunological-pathogenesis-of-immunoglobulin-a-vasculitis
#18
Ya-Ting Liu, Si-Guang Lu
Immunoglobulin A (IgA) vasculitis is the most common leukocytoclastic small-vessel vasculitis in children and mainly involves the small vessels in the skin, joints, digestive tract, and kidneys. Its pathogenesis is still unclear. Currently, it is believed that environmental factors can cause autoimmune dysfunction and lead to the deposition of IgA-containing immune complexes on the wall of arterioles on the basis of genetic factors. This article reviews the research advances in the role of immune factors in the pathogenesis of IgA vasculitis...
July 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28697478/shedding-lights-on-the-flexible-armed-porphyrins-human-telomeric-g4-dna-interaction-and-cell-photocytotoxicity-research
#19
Xiang-Yu Sun, Ping Zhao, Shu-Fang Jin, Min-Chao Liu, Xia-Hong Wang, Yu-Min Huang, Zhen-Feng Cheng, Si-Qi Yan, Yan-Yu Li, Ya-Qing Chen, Yan-Mei Zhong
DNA polymorphism exerts a fascination on a large scientific community. Without crystallographic structural data, clarification of the binding modes between G-quadruplex (G4) and ligand (complex) is a challenging job. In the present work, three porphyrin compounds with different flexible carbon chains (arms) were designed, synthesized and characterized. Their binding, folding and stabilizing abilities to human telomeric G4 DNA structures were comparatively researched. Positive charges at the end of the flexible carbon chains seem to be favorable for the DNA-porphyrin interactions, which were evidenced by the spectral results and further confirmed by the molecular docking calculations...
July 4, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28655909/plk2-plays-an-essential-role-in-high-d-glucose-induced-apoptosis-ros-generation-and-inflammation-in-podocytes
#20
Hong-Hong Zou, Ping-Ping Yang, Tian-Lun Huang, Xiao-Xu Zheng, Gao-Si Xu
Diabetic kidney disease (DKD) is a serious complication of hyperglycemia. Currently, there is no effective therapeutic intervention for DKD. In this study, we sought to provide a set of gene profile in diabetic kidneys. We identified 338 genes altered in diabetes-induced DKD glomeruli, and PLK2 exhibited the most dramatic change. Gene set enrichment analysis (GSEA) indicated multiple signaling pathways are involved DKD pathogenesis. Here, we investigated whether PLK2 contributes to podocyte dysfunction, a characteristic change in the development of DKD...
June 27, 2017: Scientific Reports
keyword
keyword
118781
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"