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https://www.readbyqxmd.com/read/28627188/effect-of-glutamine-on-liver-injuries-induced-by-intestinal-ischemia-reperfusion-in-rats
#1
Renata Hartmann, Francielli Licks, Elizângela Gonçalves Schemitt, Josieli Raskopf Colares, Juliana Da Silva, Rosa Maria Moura, Gilmara Pandolfo Zabot, Henrique Sarubbi Fillmann, Norma Possa Marroni
INTRODUCTION: Intestinal ischemia-reperfusion (I/R) injury may cause cell and tissue damage, reaching also other organs such as the liver. Because of the involvement of free radicals in I/R injury, treatment options with antioxidants have been studied and tested. OBJECTIVE: To evaluate the effect of glutamine (Gln) in the liver of animals with intestinal I/R injury. METHODS: We used 20 male Wistar rats divided into four groups: sham-operated (SO); glutamine + sham-operated (G+SO); intestinal ischemia-reperfusion (I/R); glutamine + intestinal ischemia-reperfusion (G+I/R)...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28611814/mapping-and-preliminary-analysis-of-aborted-microspores-ams-as-the-candidate-gene-underlying-the-male-sterility-ms-5-mutant-in-melon-cucumis-melo-l
#2
Yunyan Sheng, Yudan Wang, Shiqi Jiao, Yazhong Jin, Peng Ji, Feishi Luan
Melon is an important agricultural and economic vegetable crop worldwide. The genetic male sterility mutant (ms-5) has a recessive nuclear gene that controls the male sterility germplasm. Male sterility could reduce the cost of F1 seed production in melon, but heterozygous fertile plants should be removed before pollination. In this study, bulked segregant analysis combined with specific length amplified fragment sequencing was applied to map the single nuclear male sterility recessive gene. A 30-kb candidate region on chromosome 9 located on scaffold 000048 and spanning 2,522,791 to 2,555,104 bp was identified and further confirmed by cleavage amplified polymorphic sequence markers based on parental line resequencing data and classical mapping of 252 F2 individuals...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28609844/an-overview-on-immunoregulatory-and-anti-inflammatory-properties-of-chrysin-and-flavonoids-substances
#3
REVIEW
Majid Zeinali, Seyed Abdolrahim Rezaee, Hossein Hosseinzadeh
Inflammation and the pro-inflammatory cytokines are associated with numerous chronic diseases. Studies suggest that flavonoids, plant polyphenolic compound derivatives from natural origin, have a wide range of putative biological activities. Similar to other flavonoids, chrysin (CH) by its anti-oxidative and anti-inflammatory effects is a potential prophylactic agent in immunopathological and physicochemical injuries. This is an overview on putative immunomodulatory activities of flavonoids and beneficial health effects of these substances particularly, CH in the immune system...
June 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28608141/triterpenoids-principle-of-wedelia-calendulacea-attenuated-diethynitrosamine-induced-hepatocellular-carcinoma-via-down-regulating-oxidative-stress-inflammation-and-pathology-via-nf-kb-pathway
#4
Amita Verma, Deepika Singh, Firoz Anwar, Prakash Chandra Bhatt, Fahad Al-Abbasi, Vikas Kumar
The aerial part of Wedelia calendulacea have been used in Ayurveda, Unani, Tibetan, Siddha and other folk medicine systems to protect the liver and renal tissue. Liver is considered as primary metabolizing site of body, which is prone to damage by endogenous and exogenous toxicants. A reason for liver toxicity, and major causes of the hepatocellular carcinoma (HCC). 19-α-Hydroxyurs-12(13)-ene-28 oic acid-3-O-β-D-glucopyranoside (HEG), a triterpenoids found in the higher plants, has been known to possess protective effect against various toxicants...
June 12, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28602680/two-novel-p38-mapks-identified-from-epinephelus-coioides-and-their-expression-pattern-in-response-to-cryptocaryon-irritans-infection
#5
Hong-Yan Sun, Mian-Zhi Huang, Yan-Wei Li, Jia-Hao Huang, Ze-Quan Mo, Rui-Ai Chen, Xue-Ming Dan
P38 mitogen-activated protein kinases (MAPKs) are one of the most important central regulatory proteins response to extra environmental stresses. In this study, two novel p38 MAPKs, Ec-P38γ and Ec-P38δ, were identified from Epinephelus coioides, an economically important cultured fish in China and Southeast Asian counties. Both of Ec-p38γ and Ec-p38δ sequences contain a serine/threonine protein kinase (S_TKc) domain and a highly conserved Thr-Gly-Tyr (TGY) motif. Analysis of phylogenetic relationships illustrated that p38 amino acid sequences were conserved between different species indicating that the functions may be similar...
June 5, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28591668/the-selective-estrogen-receptor-modulators-serms-raloxifene-and-tamoxifen-improve-anp-levels-and-decrease-nuclear-translocation-of-nf-kb-in-estrogen-deficient-rats
#6
Aline Z Lamas, Andrews M Nascimento, Ana Raquel S Medeiros, Izabela F Caliman, Polyana L M Dalpiaz, Luciana B Firmes, Glauciene J Sousa, Phablo Wendell C Oliveira, Tadeu U Andrade, Adelina M Reis, Sônia A Gouvea, Nazaré S Bissoli
BACKGROUND: The selective estrogen receptor modulators (SERMs) raloxifene and tamoxifen are used for the treatment of osteoporosis and cancer, respectively, in women. The impairment of both the Atrial Natriuretic Peptide (ANP) cell signaling system and the translocation of nuclear factor-kappa B (NF-kB) to the cell nucleus are associated with detrimental cardiovascular effects and inflammation. The effects of SERMs on these parameters in the cardiac tissue of estrogen-deficient rats has not been reported...
March 16, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28580511/effect-of-recent-spinal-cord-injury-on-the-opg-rankl-system-and-its-relationship-with-bone-loss-and-the-response-to-denosumab-therapy
#7
L Gifre, S Ruiz-Gaspà, J L Carrasco, E Portell, J Vidal, A Muxi, A Monegal, N Guañabens, P Peris
There is marked bone loss after spinal cord injury (SCI); however, its pathogenesis and clinical management remain unclear. The increased circulating levels of receptor activator of nuclear factor kB ligand (RANKL) associated with bone loss shortly after SCI and the prevention of bone loss with denosumab treatment suggest a contributory role of RANKL in SCI-induced osteoporosis. INTRODUCTION: Bone turnover and bone loss are markedly increased shortly after SCI. However, the pathogenesis and clinical management of this process remain unclear, especially the role of the osteoprotegerin (OPG)/RANKL system in this disorder...
June 4, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28578349/ptpro-promotes-oxidized-low-density-lipoprotein-induced-oxidative-stress-and-cell-apoptosis-through-toll-like-receptor-4-nuclear-factor-%C3%AE%C2%BAb-pathway
#8
Caihong Liang, Xiaochen Wang, Jianping Hu, Xiaoqing Lian, Tiantian Zhu, Hui Zhang, Ning Gu, Jun Li
BACKGROUND/AIMS: Critical roles of phosphatase receptor type O (PTPRO) and toll-like receptor 4 (TLR4) have been implicated in inflammation. However, little is known about their functional effects on atherosclerosis (AS). We aim to study their potential function in AS. METHODS: An oxidized low-density lipoprotein (ox-LDL) induced AS model constructed with PTPRO over-expressing RAW264.7 cells and PTPRO knockout macrophages. Cell apoptosis was assayed by flow cytometry and fatty accumulation was evaluated by oil red staining...
June 5, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28573503/endoplasmic-reticulum-stress-nrf2-signalling-and-cardiovascular-diseases-in-a-nutshell
#9
REVIEW
Chiara Mozzini, Luciano Cominacini, Ulisse Garbin, Anna Maria Fratta Pasini
PURPOSE OF REVIEW: This short review is intended primarily to summarize the understanding of the interrelated roles of endoplasmic reticulum (ER) stress, oxidative stress and inflammation in cardiovascular diseases. RECENT FINDINGS: Insults interfering with ER function lead to the accumulation of unfolded and misfolded proteins in the ER. An excess of proteins folding in the ER is known as ER stress. This condition initiates the unfolded protein response (UPR). When the UPR fails to control the level of unfolded and misfolded proteins, ER-initiated apoptotic signalling is induced...
August 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28572767/glia-maturation-factor-and-mitochondrial-uncoupling-proteins-2-and-4-expression-in-the-temporal-cortex-of-alzheimer-s-disease-brain
#10
Ramasamy Thangavel, Duraisamy Kempuraj, Smita Zaheer, Sudhanshu Raikwar, Mohammad E Ahmed, Govindhasamy Pushpavathi Selvakumar, Shankar S Iyer, Asgar Zaheer
Alzheimer's disease (AD) is characterized by the presence of neuropathological lesions containing amyloid plaques (APs) and neurofibrillary tangles (NFTs). AD is associated with mitochondrial dysfunctions, neuroinflammation and neurodegeneration in the brain. We have previously demonstrated enhanced expression of the proinflammatory protein glia maturation factor (GMF) in glial cells near APs and NFTs in the AD brains. Parahippocampal gyrus consisting of entorhinal and perirhinal subdivisions of temporal cortex is the first brain region affected during AD pathogenesis...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28539257/propranolol-treatment-lowers-blood-pressure-reduces-vascular-inflammatory-markers-and-improves-endothelial-function-in-obese-mice
#11
Nathalia da Silva Franco, Camila Lubaczeuski, Daniele M Guizoni, Jamaira A Victorio, Junia C Santos-Silva, Patricia C Brum, Everardo M Carneiro, Ana P Davel
Obesity-associated hypertension is accompanied by a number of cardiovascular risk factors including vascular insulin resistance (IR) and higher sympathetic nervous activity. Therefore, autonomic blockade was demonstrated to reverse hypertension, endothelial dysfunction and IR in obese individuals. We hypothesized that β-AR blockade with propranolol would restore endothelial function and vascular insulin signaling in obesity, associated with an anti-inflammatory effect. Body weight, systolic blood pressure (SBP), plasma biochemical parameters and aortic endothelial function were analyzed in mice fed standard diet (control group) or a high fat diet (HFD) that were treated with vehicle (water) or propranolol (10mg/kg/day) for 8weeks...
May 21, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28537244/-transcription-factors-nf-kb-hif-1-hif-2-growth-factor-vegf-vegfr2-and-carboanhydrase-ix-mrna-and-protein-level-in-the-development-of-kidney-cancer-metastasis
#12
L V Spirina, Y A Usynin, Z A Yurmazov, E M Slonimskaya, E S Kolegova, I V Kondakova
Here, we have investigated the participation of nuclear factors NF-kB, HIF-1 and HIF-2, VEGF, VEGFR2, and carboanhydrase IX in clear-cell renal cancer. We have determined the expression and protein level of transcription factors, VEGF, VEGFR2, and carboanhydrase IX in tumor and normal tissues of 30 patients with kidney cancer. The Real-Time PCR and ELISA were used in the study. The low levels of HIF-1 mRNA expression associated with high levels of HIF-1 protein were also associated with metastasis. The expression levels of VEGF, VEGFR2, and their protein levels are increased in primary tumors of patients with disseminated kidney cancer compared to nonmetastatic cancer...
March 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28536720/prostaglandin-endoperoxide-synthase-2-deletion-affects-the-natural-trafficking-of-annexin-a2-in-monocytes-and-favours-venous-thrombosis-in-mice
#13
Patrizia Amadio, Eva Tarantino, Leonardo Sandrini, Elena Tremoli, Silvia S Barbieri
Deep-vein thrombosis (DVT) is a common condition that often leads to pulmonary thromboembolism (VTE) and death. The role of prostaglandin-endoperoxide synthase (PTGS)2 in arterial thrombosis has been well established, whereas its impact in venous thrombosis remains unclear. Here, we showed that PTGS2 deletion predisposes to venous thrombosis as suggested by greater clot firmness and clot elasticity, by higher plasma levels of functional fibrinogen, factor VIII and PAI-1 activity, and proved by bigger thrombi detected after inferior vena cava ligation (IVCL) compared to WT mice...
May 24, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28528307/extracellular-atp-is-a-key-modulator-of-alveolar-bone-loss-in-periodontitis
#14
REVIEW
Itzhak Binderman, Nasir Gadban, Avinoam Yaffe
Periodontal diseases are initiated by pathogenic bacterial biofilm activity that induces a host inflammatory cells immune response, degradation of dento gingival fibrous tissue and its detachment from root cementum. It is well accepted, that osteoclastic alveolar bone loss is governed exclusively through secretion of proinflammatory cytokines. Nevertheless, our findings suggest that once degradation of collagen fibers by MMPs occurs, a drop of cellular strains cause immediate release of ATP from marginal gingival fibroblasts, cell deformation and influx of Ca+2...
May 13, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28526925/polyphenolic-extract-attenuates-fatty-acid-induced-steatosis-and-oxidative-stress-in-hepatic-and-endothelial-cells
#15
Laura Vergani, Giulia Vecchione, Francesca Baldini, Elena Grasselli, Adriana Voci, Piero Portincasa, Pier Francesco Ferrari, Bahar Aliakbarian, Alessandro A Casazza, Patrizia Perego
PURPOSE: Phenolic compounds (PC) of virgin olive oil exert several biochemical and pharmacological beneficial effects. Some dietary PC seem to prevent/improve obesity and metabolic-related disorders such as non-alcoholic fatty liver disease (NAFLD). We investigated the possible effects of PC extracted from olive pomace (PEOP) and of the main single molecules present in the extract (tyrosol, apigenin, oleuropein, p-coumaric and caffeic acid) in protecting hepatocytes and endothelial cells against triglyceride accumulation and oxidative stress...
May 19, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28522818/efficient-modification-of-%C3%AE-dna-substrates-for-single-molecule-studies
#16
Yoori Kim, Armando de la Torre, Andrew A Leal, Ilya J Finkelstein
Single-molecule studies of protein-nucleic acid interactions frequently require site-specific modification of long DNA substrates. The bacteriophage λ is a convenient source of high quality long (48.5 kb) DNA. However, introducing specific sequences, tertiary structures, and chemical modifications into λ-DNA remains technically challenging. Most current approaches rely on multi-step ligations with low yields and incomplete products. Here, we describe a molecular toolkit for rapid preparation of modified λ-DNA...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521869/high-fgf21-levels-are-associated-with-altered-bone-homeostasis-in-hiv-1-infected-patients
#17
José M Gallego-Escuredo, Maria Karuna Lamarca, Joan Villarroya, Joan C Domingo, Ma Gracia Mateo, Ma Del Mar Gutierrez, Francesc Vidal, Francesc Villarroya, Pere Domingo, Marta Giralt
BACKGROUND: Fibroblast growth factor-21 (FGF21) has emerged as an important regulator of glucose, lipid, and body weight homeostasis. However, recent experimental studies have reported that increased FGF21 levels may lead to bone loss. OBJECTIVE: To assess the relationship of serum FGF21 levels and altered bone homeostasis in HIV-1-infected patients. DESIGN: Cross-sectional study of 137 HIV-1-infected patients and 35 healthy controls conducted at the Hospital de la Santa Creu i Sant Pau, Barcelona...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28511952/lithium-ameliorates-lipopolysaccharide-induced-neurotoxicity-in-the-cortex-and-hippocampus-of-the-adult-rat-brain
#18
Muhammad Sohail Khan, Tahir Ali, Muhammad Noman Abid, Myeung Hoon Jo, Amjad Khan, Min Woo Kim, Gwang Ho Yoon, Eun Woo Cheon, Shafiq Ur Rehman, Myeong Ok Kim
Lithium an effective mood stabilizer, primary used in the treatment of bipolar disorders, has been reported as a protective agent in various neurological disorders. In this study, we examined the neuroprotective role of lithium chloride (LiCl) against lipopolysaccharide (LPS) in the cortex and hippocampus of the adult rat brain. We determined that LiCl -attenuated LPS-induced activated toll-like receptor 4 (TLR4) signalling and significantly reduced the nuclear factor-kB (NF-KB) translation factor and various other inflammatory mediators such as interleukin-1 beta (IL-1β) and tumour necrosis factor alpha (TNF-α)...
May 13, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28509316/effects-of-17%C3%AE-estradioland-raloxifene-on-endothelial-opg-and-rankl-secretion
#19
Wojciech Karwowski, Katarzyna Lekesiz, Ewa Koc-Żórawska, Krzysztof Wnuczko, Hanna Borysewicz-Sanczyk, Beata Naumnik
OBJECTIVES: This study aims to asses the effects of estradiol vs. raloxifene on the levels of osteoprotegerin and soluble Receptor Activator of Nuclear Factor kB Ligand (sRANKL) in Human Umbilical Vein Endothelial Cells (HUVEC) culture in standard and calcifying medium. MATERIAL AND METHODS: Human Umbilical Vein Endothelial Cells were isolated from human umbilical vein by standard method. The supernatant concentrations of osteoprotegerin (OPG) and sRANKL (ELISA) were determined after incubation with glicerophosphate, estradiol , raloxifene, glicerophoshate and estradiol, glicerophosphate and raloxifene in comparison with control group at four designated time points (0, 1, 2 and 4 days of incubation)...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28494724/c-type-lectin-receptor-old-friend-and-new-player
#20
Hai Hou, Yahui Guo, Qing Chang, Tianming Luo, Xin Wu, Xueqiang Zhao
During the last two decades, C-type lectin receptors (CLRs) have been demonstrated to play key roles in initiating the host immune response upon fungal infection. It is well established that CLRs, such as Dectin-1, Dectin-2, Dectin-3 and Mincle, recognize the cell wall component from the infected microorganisms by using their carbohydrate recognition domain (CRD). Upon stimulation, CLRs induce multiple signal transduction cascades through their own immune-receptor tyrosine-based activation motifs (ITAMs) or interacting with ITAM-containing adaptor proteins such as FcRγ, which then lead to the activation of nuclear factor kappa B (NF-kB) through Syk- and CARD9-dependent pathway...
May 9, 2017: Medicinal Chemistry
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