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https://www.readbyqxmd.com/read/28228449/neighborhood-differences-in-post-stroke-mortality
#1
Theresa L Osypuk, Amy Ehntholt, J Robin Moon, Paola Gilsanz, M Maria Glymour
BACKGROUND: Post-stroke mortality is higher among residents of disadvantaged neighborhoods, but it is not known whether neighborhood inequalities are specific to stroke survival or similar to mortality patterns in the general population. We hypothesized that neighborhood disadvantage would predict higher poststroke mortality, and neighborhood effects would be relatively larger for stroke patients than for individuals with no history of stroke. METHODS AND RESULTS: Health and Retirement Study participants aged ≥50 years without stroke at baseline (n=15 560) were followed ≤12 years for incident stroke (1715 events over 159 286 person-years) and mortality (5325 deaths)...
February 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28228357/activation-of-mtor-i%C3%AE%C2%BAb-%C3%AE-nf-%C3%AE%C2%BAb-pathway-contributes-to-lps-induced-hypotension-and-inflammation-in-rats
#2
Meryem Temiz-Resitoglu, Sefika Pinar Kucukkavruk, Demet Sinem Guden, Pelin Cecen, Ayse Nihal Sari, Bahar Tunctan, Aysegul Gorur, Lulufer Tamer-Gumus, Cuneyt Kemal Buharalioglu, Kafait U Malik, Seyhan Sahan-Firat
Mammalian target of rapamycin (mTOR), a serine/threonine kinase plays an important role in various pathophysiological processes including cancer, metabolic diseases, and inflammation. Although mTOR participates in Toll-like receptor 4 signalling in different cell types, the role of this enzyme in sepsis pathogenesis and its effects on hypotension and inflammation in endotoxemic rats remains unclear. In this study we investigated the effects of mTOR inhibition on lipopolysaccharide (LPS)-induced changes on expressions and/or activities of ribosomal protein S6 (rpS6), an mTOR substrate, nuclear factor-κB (NF-κB) p65, inhibitor κB (IκB)-α, inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2 with production of nitric oxide, peroxynitrite, prostacyclin, and tumor necrosis factor (TNF)-α and activity of myeloperoxidase (MPO), which results in hypotension and inflammation...
February 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28228069/recent-advances-in-the-gastric-mucosal-protection-against-stress-induced-gastric-lesions-importance-of-renin-angiotensin-vasoactive-metabolites-gaseous-mediators-and-appetite-peptides
#3
Tomasz Brzozowski, Katarzyna Magierowska, Marcin Magierowski, Agata Ptak-Belowska, Robert Pajdo, Slawomir Kwiecien, Rafal Olszanecki, Ryszard Korbut
Stress is known to cause severe adverse effects in the human gastrointestinal tract including mucosal microbleedings and erosions or even gastric ulceration but the mechanism of these complications has not been fully elucidated. The pathogenesis of stress-induced gastric damage involves the fall in gastric blood flow (GBF), an increase in gastric acid secretion and gastric motility, enhanced adrenergic and cholinergic nerve activity and the rise in gastric mucosal generation of reactive oxygen species. The gastric mucosal defense mechanisms against the deleterious effect of stress include the activation of the hypothalamic-pituitary-adrenal axis which has been linked with glucocorticoids release capable of counteracting of stress-induced gastric lesions...
February 20, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28224192/serum-magnesium-and-the-risk-of-prediabetes-a-population-based-cohort-study
#4
Brenda C T Kieboom, Symen Ligthart, Abbas Dehghan, Steef Kurstjens, Jeroen H F de Baaij, Oscar H Franco, Albert Hofman, Robert Zietse, Bruno H Stricker, Ewout J Hoorn
AIMS/HYPOTHESIS: Previous studies have found an association between serum magnesium and incident diabetes; however, this association may be due to reverse causation, whereby diabetes may induce urinary magnesium loss. In contrast, in prediabetes (defined as impaired fasting glucose), serum glucose levels are below the threshold for urinary magnesium wasting and, hence, unlikely to influence serum magnesium levels. Thus, to study the directionality of the association between serum magnesium levels and diabetes, we investigated its association with prediabetes...
February 21, 2017: Diabetologia
https://www.readbyqxmd.com/read/28223539/thymol-mitigates-lipopolysaccharide-induced-endometritis-by-regulating-the-tlr4-and-ros-mediated-nf-%C3%AE%C2%BAb-signaling-pathways
#5
Haichong Wu, Kangfeng Jiang, Nannan Yin, Xiaofei Ma, Gan Zhao, Changwei Qiu, Ganzhen Deng
The purpose of this study was to investigate the effects of thymol on lipopolysaccharide (LPS)-induced inflammatory responses and to clarify the potential mechanism of these effects. LPS-induced mouse endometritis was used to confirm the anti-inflammatory action of thymol in vivo. RAW264.7 cells were used to examine the molecular mechanism and targets of thymol in vitro. In vivo, thymol markedly alleviated LPS-induced pathological injury, myeloperoxidase (MPO) activity, and the production of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) in mice...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28223278/impact-of-genetic-alterations-in-stem-cell-transplantation-for-myelodysplasia-and-secondary-acute-myeloid-leukemia
#6
Tetsuichi Yoshizato, Yasuhito Nannya, Yoshiko Atsuta, Yusuke Shiozawa, Yuka Iijima-Yamashita, Kenichi Yoshida, Yuichi Shiraishi, Hiromichi Suzuki, Yasunobu Nagata, Yusuke Sato, Nobuyuki Kakiuchi, Keitaro Matsuo, Makoto Onizuka, Keisuke Kataoka, Kenichi Chiba, Hiroko Tanaka, Hiroo Ueno, Masahiro M Nakagawa, Bartlomiej Przychodzen, Claudia Haferlach, Wolfgang Kern, Kosuke Aoki, Hidehiro Itonaga, Yoshinobu Kanda, Mikkael A Sekeres, Jaroslaw P Maciejewski, Torsten Haferlach, Yasushi Miyazaki, Keizo Horibe, Masashi Sanada, Satoru Miyano, Hideki Makishima, Seishi Ogawa
Genetic alterations, including mutations and copy number alterations, are central to the pathogenesis of myelodysplastic syndromes and related diseases (myelodysplasia), but their roles in allogeneic stem-cell transplantation have not fully been studied in a large cohort of patients. We enrolled 797 patients who had been diagnosed with myelodysplasia at initial presentation and received transplantation via the Japan Marrow Donor Program. Targeted-capture sequencing was performed to identify mutations in 69 genes, together with copy number alterations, whose effects on transplantation outcomes were investigated...
February 21, 2017: Blood
https://www.readbyqxmd.com/read/28222891/coumarins-scaffolds-as-cox-inhibitors
#7
REVIEW
Hrishikesh Mohan Revankar, Syed Nasir Abbas Bukhari, Gajjela Bharath Kumar, Hua-Li Qin
The discovery of COX enzymes has led to a better understanding of inflammation and its related biological pathways. Apart from being related to inflammation and pain, it has also been associated with cancer and neuropsychiatric diseases such as schizophrenia. Proverbially speaking, study of these enzymes has been crucial as they happen to "have fingers in many pies". Non-steroidal anti-inflammatory drugs (NSAID) that act specifically as COX-2 inhibitors have been known for a while; however these are also associated with severe side effects such as cardiac problems...
February 9, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28222079/establishing-priorities-for-oncology-nursing-research-nurse-and-patient-collaboration
#8
Anna Cox, Anne Arber, Ann Gallagher, Mairead MacKenzie, Emma Ream
PURPOSE/OBJECTIVES: To obtain consensus on priorities for oncology nursing research in the United Kingdom.
. DESIGN: A three-round online Delphi survey.
. SETTING: Oncology nurses were invited via the United Kingdom Oncology Nursing Society (UKONS) database. Patient participation was invited through patient organizations.
. SAMPLE: 50 oncology nurses and 18 patients.
. METHODS: Eligible and consenting individuals reported five priorities for oncology nursing research (round 1), rated their level of agreement with them (round 2), and restated and revised their responses in light of the group's responses (round 3)...
March 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28220024/molecular-subtypes-improve-prognostic-value-of-international-metastatic-renal-cell-carcinoma-database-consortium-prognostic-model
#9
Guillermo de Velasco, Aedín C Culhane, André P Fay, A Ari Hakimi, Martin H Voss, Nizar M Tannir, Pheroze Tamboli, Leonard J Appleman, Joaquim Bellmunt, W Kimryn Rathmell, Laurence Albiges, James J Hsieh, Daniel Y C Heng, Sabina Signoretti, Toni K Choueiri
INTRODUCTION: Gene-expression signatures for prognosis have been reported in localized renal cell carcinoma (RCC). The aim of this study was to test the predictive power of two different signatures, ClearCode34, a 34-gene signature model [Eur Urol 2014;66:77-84], and an 8-gene signature model [Eur Urol 2015;67:17-20], in the setting of systemic therapy for metastatic disease. MATERIALS AND METHODS: Metastatic RCC (mRCC) patients from five institutions who were part of TCGA were identified and clinical data were retrieved...
February 20, 2017: Oncologist
https://www.readbyqxmd.com/read/28219839/sinigrin-inhibits-production-of-inflammatory-mediators-by-suppressing-nf-%C3%AE%C2%BAb-mapk-pathways-or-nlrp3-inflammasome-activation-in-macrophages
#10
Hee-Weon Lee, Chung Gi Lee, Dong-Kwon Rhee, Sung Hee Um, Sukneung Pyo
Sinigrin (2-propenyl glucosinolate) is found mainly in broccoli, brussels sprouts, and black mustard seeds. Recently, sinigrin has received attention for its role in disease prevention and health. This study investigated the effect of sinigrin on macrophage function, including the activity of Nod-like receptor protein 3 (NLRP3) inflammasome. In a concentration-dependent manner, sinigrin inhibited lipopolysaccharide (LPS)-induced nitric oxide (NO) production and the expression of COX-2 and prostaglandin E2 (PGE2) in RAW 264...
February 17, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28219355/vaccaria-hypaphorine-alleviates-lipopolysaccharide-induced-inflammation-via-inactivation-of-nf%C3%AE%C2%BAb-and-erk-pathways-in-raw-264-7-cells
#11
Haijian Sun, Weiwei Cai, Xu Wang, Yanling Liu, Bao Hou, Xuexue Zhu, Liying Qiu
BACKGROUND: Activation of macrophage is involved in many inflammation diseases. Lipopolysaccharide (LPS) is a powerful inflammatory signal contributing to monocytes/macrophages activation associated with increased proinflammatory cytokines expressions. We recently identified that vaccarin was expected to protect endothelial cells from injury. Hypaphorine was abundantly found in vaccaria semen. However, the potential roles and underlying mechanisms of vaccaria hypaphorine on macrophage inflammation have been poorly defined...
February 20, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28218046/thyroid-transcription-factor-1-expression-is-associated-with-outcome-of-patients-with-non-squamous-non-small-cell-lung-cancer-treated-with-pemetrexed-based-chemotherapy
#12
Ondrej Fiala, Milos Pesek, Jana Skrickova, Vitezslav Kolek, Frantisek Salajka, Marcela Tomiskova, Monika Satankova, Juraj Kultan, Jana Kuliskova, Martin Svaton, Michal Hrnciarik, Karel Hejduk, Renata Chloupkova, Ondrej Topolcan, Helena Hornychova, Marketa Nova, Ales Ryska, Jindrich Finek
Pemetrexed is an antifolate cytostatic agent targeting several folate-dependent enzymatic pathways, widely used in the treatment of locally advanced or metastatic stage non-small cell lung cancer. Aside from the non-squamous histology, there is still no available molecular biomarker predicting treatment efficacy of pemetrexed-based chemotherapy. The aim of our retrospective study was to evaluate the association of thyroid transcription factor 1 expression with outcome of a large cohort of patients with non-squamous non-small cell lung cancer treated with pemetrexed...
February 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28216638/thymoquinone-an-irak1-inhibitor-with-in-vivo-and-in-vitro-anti-inflammatory-activities
#13
Muhammad Jahangir Hossen, Woo Seok Yang, Daewon Kim, Adithan Aravinthan, Jong-Hoon Kim, Jae Youl Cho
Thymoquinone (TQ) is a bioactive component of black seed (Nigella sativa) volatile oil and has been shown to have anti-oxidative, anti-inflammatory, and anti-cancer properties. In the present study, we explored the molecular mechanisms that underlie the anti-inflammatory effect of TQ and its target proteins using lipopolysaccharide (LPS)-stimulated murine macrophage-like RAW264.7 and human monocyte-like U937 cells, together with LPS/D-galactosamine (GalN)-induced acute hepatitis and HCl/EtOH-induced gastritis mouse models...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28213942/pge2-ep4-attenuated-mucosal-injury-via-%C3%AE-arr1-src-egfr-mediated-proliferation-in-portal-hypertensive-gastropathy
#14
Siwei Tan, Xiaoliang Chen, Minyi Xu, Xiaoli Huang, Huiling Liu, Jie Jiang, Yu Lu, Xiaojie Peng, Bin Wu
BACKGROUND AND PURPOSE: Portal hypertensive gastropathy (PHG) is a serious complication of liver cirrhosis and a potential cause of bleeding in patients associated with cirrhosis. Suppressed mucosal epithelial proliferation is a crucial pathological characteristic of PHG. Our studies demonstrated an important role of prostaglandin E2 (PGE2 ) and its E-type prostanoid 4 (EP4 ) receptor in the promotion of mucosal proliferation. However, whether β-arrestin1 (β-arr1), a well-established mediator of G-protein-coupled receptors (GPCRs), is involved in the PGE2 /EP4 -mediated mucosal proliferation complex in PHG remains unclear...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28213321/effects-of-selenium-lead-interaction-on-the-gene-expression-of-inflammatory-factors-and-selenoproteins-in-chicken-neutrophils
#15
Xiaojing Li, Mengyuan Xing, Menghao Chen, Jinxin Zhao, Ruifeng Fan, Xia Zhao, Changyu Cao, Jie Yang, Ziwei Zhang, Shiwen Xu
Lead (Pb) is one of the most highly toxic metal pollutant that can cause damage to the immune system. It is known that selenium (Se) can antagonize heavy metals. To explore the toxic effects of Pb poisoning on bird immune cells, as well as the alleviating effects of Se on Pb, Se supplement and/or Pb poisoning chicken models were established. One hundred and eighty Hyline 7-day-old male chickens received either Se (1mg Se per kg of diet), Pb (350mg Pb per liter water) or Se+Pb in their diet and water for 90 days...
February 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28212985/nonsteroidal-anti-inflammatory-drugs-in-clinical-and-experimental-epilepsy
#16
REVIEW
Beatrice Mihaela Radu, Florin Bogdan Epureanu, Mihai Radu, Paolo Francesco Fabene, Giuseppe Bertini
Current antiepileptic drugs have limited efficacy and provide little or no benefits in 30% of the patients. Given that a role for brain inflammation in epilepsy has been repeatedly reported in recent years, the potential of anti-inflammatory drugs should be explored in depth, as they may provide new therapeutical approaches in preventing or reducing epileptogenesis. Here, we review preclinical (both in vivo and in vitro) and clinical epilepsy studies in which nonsteroidal antiinflammatory drugs (NSAIDs), i...
February 9, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28212580/network-pharmacology-based-and-clinically-relevant-prediction-of-the-active-ingredients-and-potential-targets-of-chinese-herbs-in-metastatic-breast-cancer-patients
#17
Yu Mao, Jian Hao, Zi-Qi Jin, Yang-Yang Niu, Xue Yang, Dan Liu, Rui Cao, Xiong-Zhi Wu
Chinese Herbal Medicine (CHM) plays a significant role in breast cancer treatment. We conduct the study to ascertain the relative molecular targets of effective Chinese herbs in treating stage IV breast cancer.Survival benefit of CHM was verified by Kaplan-Meier method and Cox regression analysis. A bivariate correlation analysis was used to find and establish the effect of herbs in complex CHM formulas. A network pharmacological approach was adopted to explore the potential mechanisms of CHM.Patients in the CHM group had a median survival time of 55 months, which was longer than the 23 months of patients in the non-CHM group...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28208679/vanillin-protects-dopaminergic-neurons-against-inflammation-mediated-cell-death-by-inhibiting-erk1-2-p38-and-the-nf-%C3%AE%C2%BAb-signaling-pathway
#18
Xuan Yan, Dian-Feng Liu, Xiang-Yang Zhang, Dong Liu, Shi-Yao Xu, Guang-Xin Chen, Bing-Xu Huang, Wen-Zhi Ren, Wei Wang, Shou-Peng Fu, Ju-Xiong Liu
Neuroinflammation plays a very important role in the pathogenesis of Parkinson's disease (PD). After activation, microglia produce pro-inflammatory mediators that damage surrounding neurons. Consequently, the inhibition of microglial activation might represent a new therapeutic approach of PD. Vanillin has been shown to protect dopaminergic neurons, but the mechanism is still unclear. Herein, we further study the underlying mechanisms in lipopolysaccharide (LPS)-induced PD models. In vivo, we firstly established rat models of PD by unilateral injection of LPS into substantia nigra (SN), and then examined the role of vanillin in motor dysfunction, microglial activation and degeneration of dopaminergic neurons...
February 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28204833/small-heterodimer-partner-attenuates-hydrogen-peroxide-induced-expression-of-cyclooxygenase-2-and-inducible-nitric-oxide-synthase-by-suppression-of-activator-protein-1-and-nuclear-factor-%C3%AE%C2%BAb-in-renal-proximal-tubule-epithelial-cells
#19
Jung Sun Park, Hoon In Choi, Eun Hui Bae, Seong Kwon Ma, Soo Wan Kim
The orphan nuclear receptor, small heterodimer partner (SHP), plays a negative regulatory role in innate immune responses and is involved in various inflammatory signaling pathways. In the present study, we aimed to ascertain whether SHP is effective in preventing hydrogen peroxide (H2O2)-induced kidney tubular inflammation and explored the molecular mechanisms underlying the protective effects of SHP. Renal ischemia/reperfusion (I/R) injury was induced in mice by clamping both renal pedicles for 30 min...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28199844/mr-1s-interacts-with-pet100-and-pet117-in-module-based-assembly-of-human-cytochrome-c-oxidase
#20
Sara Vidoni, Michael E Harbour, Sergio Guerrero-Castillo, Alba Signes, Shujing Ding, Ian M Fearnley, Robert W Taylor, Valeria Tiranti, Susanne Arnold, Erika Fernandez-Vizarra, Massimo Zeviani
The biogenesis of human cytochrome c oxidase (COX) is an intricate process in which three mitochondrial DNA (mtDNA)-encoded core subunits are assembled in a coordinated way with at least 11 nucleus-encoded subunits. Many chaperones shared between yeast and humans are involved in COX assembly. Here, we have used a MT-CO3 mutant cybrid cell line to define the composition of assembly intermediates and identify new human COX assembly factors. Quantitative mass spectrometry analysis led us to modify the assembly model from a sequential pathway to a module-based process...
February 14, 2017: Cell Reports
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