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Bradykinin receptor

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https://www.readbyqxmd.com/read/28506550/cardioprotective-efficacy-of-sevoflurane-vs-propofol-during-induction-and-or-maintenance-in-patients-undergoing-coronary-artery-revascularization-surgery-without-pump-a-randomized-trial
#1
J L Guerrero Orriach, M Galán Ortega, A Ramirez Fernandez, M Ramirez Aliaga, M I Moreno Cortes, D Ariza Villanueva, A Florez Vela, J Alcaide Torres, C Santiago Fernandez, E Matute Gonzalez, E Alsina Marcos, J J Escalona Belmonte, M Rubio Navarro, L Garrido Sanchez, J Cruz Mañas
PURPOSE: Pre and post-operative administration of sevoflurane in myocardial revascularization surgery provides enhanced cardioprotective effects exerted by pharmacologic pre- and post-conditioning, as compared to propofol. The identification of the enzymes involved in conditioning mechanisms is crucial to the understanding of the effects of sevoflurane in cardiac surgery patients. The impact of sevoflurane on another crucial target organ-the kidney-was also assessed. METHODS: Ninety patients undergoing off-pump myocardial revascularization surgery were allocated to receive either intra- and postoperative sevoflurane (SS), intraoperative sevoflurane and postoperative propofol (SP), or intra- and postoperative propofol (PP))...
May 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28469598/involvement-of-the-bradykinin-b1-receptor-in-microglial-activation-in-vitro-and-in-vivo-studies
#2
Keren Asraf, Nofar Torika, Abraham Danon, Sigal Fleisher-Berkovich
The importance of brain inflammation to Alzheimer's disease (AD) pathogenesis has been accepted of late, with it currently being held that brain inflammation aggravates AD pathology. One important aspect of brain inflammation is the recruitment and activation of microglia, a process termed microgliosis. Kinins and bradykinin (BK), in particular, are major pro-inflammatory mediators in the periphery, although all of the factors comprising the kinin system have also been described in the brain. Moreover, it was shown that the amyloid β (Aβ) peptide (a component of AD plaques) enhances kinin secretion and activates BK receptors that can, in turn, stimulate Aβ production...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28464378/bradykinin-promotes-cell-proliferation-migration-invasion-and-tumor-growth-of-gastric-cancer-through-erk-signaling-pathway
#3
Guojun Wang, Junfeng Sun, Guanghui Liu, Yang Fu, Xiefu Zhang
Bradykinin (BK) has been reported to be involved in the progression of diverse types of cancer. In the present study, we investigated the possible role of BK in cell proliferation, migration, invasion and tumor growth of gastric cancer (GC). Cell proliferation was evaluated by MTT assays. Cell migration and invasion were assessed by Transwell assays. Tumor growth of nude mice was detected by establishing subcutaneous xenograft tumor model. Silencing of bradykinin B1 receptor (B1R) and the bradykinin B2 receptor (B2R) was performed by transfecting cells with si-B1R and si-B2R, respectively...
May 2, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28444548/post-effect-of-air-quality-improvement-on-biomarkers-for-systemic-inflammation-and-microparticles-in-asthma-patients-after-the-2008-beijing-olympic-games-a-pilot-study
#4
Jinming Gao, Xiaohua Xu, Zhekang Ying, Lei Jiang, Mianhua Zhong, Aixia Wang, Lung-Chi Chen, Bo Lu, Qinghua Sun
This study's aim was to investigate the post-effect of an air quality improvement on systemic inflammation and circulating microparticles in asthmatic patients during, and 2 months after, the Beijing Olympics 2008. We measured the levels of circulating inflammatory cytokines and microparticles in the peripheral blood from asthma patients and healthy controls during (phase 1), and 2 months after (phase 2) the Beijing 2008 Olympic Games. The concentrations of circulating cytokines (including TNFα, IL-6, IL-8, and IL-10) were still seen reduced in phase 2 when compared with those in phase 1...
April 25, 2017: Inflammation
https://www.readbyqxmd.com/read/28421141/excess-of-aminopeptidase-a-in-the-brain-elevates-blood-pressure-via-the-angiotensin-ii-type-1-and-bradykinin-b2-receptors-without-dipsogenic-effect
#5
Takuto Nakamura, Masanobu Yamazato, Akio Ishida, Yusuke Ohya
Aminopeptidase A (APA) cleaves angiotensin (Ang) II, kallidin, and other related peptides. In the brain, it activates the renin angiotensin system and causes hypertension. Limited data are available on the dipsogenic effect of APA and pressor effect of degraded peptides of APA such as bradykinin. Wistar-Kyoto rats received intracerebroventricular (icv) APA in a conscious, unrestrained state after pretreatment with (i) vehicle, (ii) 80 μg of telmisartan, an Ang II type-1 (AT1) receptor blocker, (iii) 800 nmol of amastatin, an aminopeptidase inhibitor, and (iv) 1 nmol of HOE-140, a bradykinin B2 receptor blocker...
2017: International Journal of Hypertension
https://www.readbyqxmd.com/read/28398146/protective-action-of-b1r-antagonist-against-cerebral-ischemia-reperfusion-injury-through-suppressing-mir-200c-expression-of-microglia-derived-microvesicles
#6
Min Tang, Ping Liu, Xia Li, Jian-Wen Wang, Xiong-Chao Zhu, Fang-Ping He
BACKGROUND AND OBJECTIVE: Cerebral ischemia-reperfusion (I/R) injury is a common side-effect for cerebral ischemic disease and its therapeutic regimen is limited. Kinin is pro-inflammatory peptide that is released and acts at the site of injury and inflammation such as brain and it works through bradykinin 1 receptor (B1R). The present study was to examine the effect of B1R antagonist on cerebral I/R injury and the potential mechanism. METHODS: Cerebral I/R injury was induced in mice by transient middle cerebral artery occlusion (MCAO)...
April 11, 2017: Neurological Research
https://www.readbyqxmd.com/read/28390948/relationship-of-angiotensin-i-converting-enzyme-ace-and-bradykinin-b2-receptor-bdkrb2-polymorphism-with-diabetic-nephropathy
#7
Honghong Zou, Guoqing Wu, Jinlei Lv, Gaosi Xu
PURPOSE: To determine whether ACE(2) I/D and BDKRB2(3) +9/-9 polymorphism causatively affect diabetic nephropathy progression RESULTS: STZ-induced metabolic disorder, as well as inflammatory responses, was significantly aggravated in ACE II-B2R(4)+9bp, ACE DD-B2R+9bp, or ACE DD-B2R-9bp diabetic mice but not ACE II-B2R-9bp, indicating the genetic susceptibility of ACE DD or B2R+9bp to diabetic nephropathy. Furthermore, ACE II-B2R+9bp, ACE DD-B2R+9bp, or ACE DD-B2R-9bp rather than ACE II-B2R-9bp, worsened renal performance and enhanced pathological alterations induced by STZ...
April 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28374922/synovial-membrane-receptors-as-therapeutic-targets-a-review-of-receptor-localization-structure-and-function
#8
REVIEW
Stephanie A Kleine, Steven C Budsberg
Joint pathology and degeneration is a significant cause of pain. The synovial membrane plays an important role in maintenance of the joint, contributes to the pathology of many arthropathies and may be adversely affected in joint disease. Improving knowledge of the receptors present within the synovium will aid in a better understanding of joint pathology and the development of new treatments for diseases such as osteoarthritis and rheumatoid arthritis. Knowledge of the location and function of synovial membrane receptors (both in healthy and diseased synovium) may provide important targets in the treatment of various arthropathies...
April 4, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28373410/bradykinin-b2-receptor-activation-regulates-renin-in-m-1-cells-via-protein-kinase-c-and-nitric-oxide
#9
Lucienne S Lara, Camille R T Bourgeois, Samir S El-Dahr, Minolfa C Prieto
In the collecting duct (CD), the interactions of renin angiotensin system (RAS) and kallikrein-kinin system (KKS) modulate Na(+) reabsorption, volume homeostasis, and blood pressure. In this study, we used a mouse kidney cortical CD cell line (M-1 cells) to test the hypothesis that in the CD, the activation of bradykinin B2 receptor (B2R) increases renin synthesis and release. Physiological concentrations of bradykinin (BK) treatment of M-1 cells increased renin mRNA and prorenin and renin protein contents in a dose-dependent manner and increased threefold renin content in the cell culture media...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28370444/the-icatibant-outcome-survey-experience-of-hereditary-angioedema-management-from-six-european-countries
#10
T Caballero, W Aberer, H J Longhurst, M Maurer, A Zanichelli, A Perrin, L Bouillet, I Andresen
BACKGROUND: Hereditary angioedema (HAE) due to C1 INH deficiency (C1-INH-HAE) is a rare, potentially fatal, bradykinin-mediated disease. Icatibant is a bradykinin B2 receptor antagonist originally approved in 2008 in the European Union and 2011 in the United States, as an acute therapy option for HAE attacks in adults. OBJECTIVE: To compare demographics, disease characteristics and treatment outcomes of icatibant-treated HAE attacks in patients with C1-INH-HAE enrolled in the Icatibant Outcome Survey across six European countries: Austria, France, Germany, Italy, Spain and the United Kingdom...
April 1, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28352319/characterizing-nanoscale-changes-in-the-activity-of-vegfr-2-on-glioma-microvascular-endothelial-cell-membranes-using-atomic-force-microscopy
#11
Dexiang Zhou, Shengquan Zhan, Dong Zhou, Peng Wang, Guangzhong Chen, Kun Qin, Xiaofeng Lin
The aim of the current study was to demonstrate the distribution of VEGFR-2 on glioma microvascular endothelial cells on a nanoscale and investigate changes in VEGFR-2 activity following treatment with the VEGFR-2 inhibitor and agonist sorafenib and bradykinin, respectively. Three groups were evaluated in this study: Control glioma microvascular endothelial cells, sorafenib-treated glioma microvascular endothelial cells and bradykinin-treated glioma microvascular endothelial cells. Changes in the activity of VEGFR-2 on the glioma microvascular endothelial cell membranes following treatment with sorafenib and bradykinin were characterized by atomic force microscopy (AFM)...
February 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28344594/articular-inflammation-induced-by-an-enzymatically-inactive-lys49-phospholipase-a2-activation-of-endogenous-phospholipases-contributes-to-the-pronociceptive-effect
#12
Renata Gonçalves Dias, Sandra Coccuzzo Sampaio, Morena Brazil Sant'Anna, Fernando Queiroz Cunha, José María Gutiérrez, Bruno Lomonte, Yara Cury, Gisele Picolo
BACKGROUND: Arthritis is a set of inflammatory conditions that induce aching, stiffness, swelling, pain and may cause functional disability with severe consequences to the patient's lives. These are multi-mediated pathologies that cannot be effectively protected and/or treated. Therefore, the aim of this study was to establish a new model of acute arthritis, using a Lys49-PLA2 (Bothrops asper myotoxin II; MT-II) to induce articular inflammation. METHODS: The articular inflammation was induced by MT-II (10 μg/joint) injection into the left tibio-tarsal or femoral-tibial-patellar joints...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28326642/neprilysin-inhibition-in-heart-failure-mechanisms-and-substrates-beyond-modulating-natriuretic-peptides
#13
REVIEW
Emilia D'Elia, Attilio Iacovoni, Muthiah Vaduganathan, Ferdinando L Lorini, Stefano Perlini, Michele Senni
The autonomic nervous system, the renin-angiotensin-aldosterone system, and the natriuretic peptide system represent critical regulatory pathways in heart failure and as such have been the major targets of pharmacological development. The introduction and approval of angiotensin receptor neprilysin inhibitors (ARNi) have broadened the available drug treatments of patients with chronic heart failure with reduced ejection fraction. Neprilysin catalyses the degradation of a number of vasodilator peptides, including the natriuretic peptides, bradykinin, substance P, and adrenomedullin, as well as vasoconstrictor peptides, including endothelin-1 and angiotensin I and II...
March 21, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28322750/supradural-inflammatory-soup-in-awake-and-freely-moving-rats-induces-facial-allodynia-that-is-blocked-by-putative-immune-modulators
#14
Julie Wieseler, Amanda Ellis, Andrew McFadden, Kendra Stone, Kimberley Brown, Sara Cady, Leandro F Bastos, David Sprunger, Niloofar Rezvani, Kirk Johnson, Kenner C Rice, Steven F Maier, Linda R Watkins
Facial allodynia is a migraine symptom that is generally considered to represent a pivotal point in migraine progression. Treatment before development of facial allodynia tends to be more successful than treatment afterwards. As such, understanding the underlying mechanisms of facial allodynia may lead to a better understanding of the mechanisms underlying migraine. Migraine facial allodynia is modeled by applying inflammatory soup (histamine, bradykinin, serotonin, prostaglandin E2) over the dura. Whether glial and/or immune activation contributes to such pain is unknown...
March 16, 2017: Brain Research
https://www.readbyqxmd.com/read/28315051/development-of-antibody-modified-chitosan-nanoparticles-for-the-targeted-delivery-of-sirna-across-the-blood-brain-barrier-as-a-strategy-for-inhibiting-hiv-replication-in-astrocytes
#15
Jijin Gu, Karam Al-Bayati, Emmanuel A Ho
RNA interference (RNAi)-mediated gene silencing offers a novel treatment and prevention strategy for human immunodeficiency virus (HIV) infection. HIV was found to infect and replicate in human brain cells and can cause neuroinfections and neurological deterioration. We designed dual-antibody-modified chitosan/small interfering RNA (siRNA) nanoparticles to deliver siRNA across the blood-brain barrier (BBB) targeting HIV-infected brain astrocytes as a strategy for inhibiting HIV replication. We hypothesized that transferrin antibody and bradykinin B2 antibody could specifically bind to the transferrin receptor (TfR) and bradykinin B2 receptor (B2R), respectively, and deliver siRNA across the BBB into astrocytes as potential targeting ligands...
March 17, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28288820/resveratrol-inhibits-bk-induced-cox-2-transcription-by-suppressing-acetylation-of-ap-1-and-nf-%C3%AE%C2%BAb-in-human-rheumatoid-arthritis-synovial-fibroblasts
#16
Chuen-Mao Yang, Yu-Wen Chen, Pei-Ling Chi, Chih-Chung Lin, Li-Der Hsiao
Bradykinin (BK) induces inflammation in rheumatoid arthritis (RA). Resveratrol is a potent activator of Sirt1 which could modulate inflammation through deacetylating histones of transcription factors. Here, we investigated the mechanisms underlying BK-induced COX-2 expression which is modulated by resveratrol/Sirt1 in human rheumatoid arthritis synovial fibroblasts (RASFs). We found that BK-induced COX-2 protein and mRNA expression associated with PGE2 synthesis, and promoter activity was mediated through B2R receptors, which were attenuated by selective B2R antagonist Hoe140 or transfection with B2R siRNA...
May 15, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28283888/kinin-receptors-sensitize-trpv4-channel-and-induce-mechanical-hyperalgesia-relevance-to-paclitaxel-induced-peripheral-neuropathy-in-mice
#17
Robson Costa, Maíra A Bicca, Marianne N Manjavachi, Gabriela C Segat, Fabiana Chaves Dias, Elizabeth S Fernandes, João B Calixto
Kinin B1 (B1R) and B2 receptors (B2R) and the transient receptor potential vanilloid 4 (TRPV4) channel are known to play a critical role in the peripheral neuropathy induced by paclitaxel (PTX) in rodents. However, the downstream pathways activated by kinin receptors as well as the sensitizers of the TRPV4 channel involved in this process remain unknown. Herein, we investigated whether kinins sensitize TRPV4 channels in order to maintain PTX-induced peripheral neuropathy in mice. The mechanical hyperalgesia induced by bradykinin (BK, a B2R agonist) or des-Arg(9)-BK (DABK, a B1R agonist) was inhibited by the selective TRPV4 antagonist HC-067047...
March 10, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28226311/effects-of-root-extracts-of-eurycoma-longifolia-jack-on-corpus-cavernosum-of-rat
#18
Bae Huey Tee, See Ziau Hoe, Swee Hung Cheah, Sau Kuen Lam
OBJECTIVE: This study was conducted to investigate the mechanisms of action of Eurycoma longifolia in rat corpus cavernosum. MATERIALS AND METHODS: Tincture of the roots was concentrated to dryness by evaporating the ethanol in vacuo. This ethanolic extract was partitioned into 5 fractions sequentially with hexane, dichloromethane (DCM), ethyl acetate, butanol, and water. The corpus cavernosum relaxant activity of each fraction was investigated. The DCM fraction which showed the highest potency in relaxing phenylephrine-precontracted corpora cavernosa was purified by column chromatography...
2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28196712/ipomoea-pes-caprae-l-r-br-convolvulaceae-as-a-topical-herbal-medicine-to-relieve-pain-and-inflammation-promising-tool-against-effects-due-to-toxin-skin-contact
#19
Cristiane da Silva Barth, Hugo Guilherme Tolentino de Souza, Lilian W Rocha, Gislaine Francieli da Silva, Mariana Ferreira Dos Anjos, Veronica D'Avila Pastor, Tania Mari Belle Bresolin, Angelica Garcia Couto, José Roberto Santin, Nara Lins Meira Quintão
ETHNOPHARMACOLOGICAL RELEVANCE: Ipomoea pes-caprae is known as bayhops, beach morning glory or goat's foot, and in Brazil as salsa-de-praia. Its leaves are used in worldwide folk medicine for the relief of jellyfish-stings symptoms. The literature only reports the anti-inflammatory and neutralizing effects of a nonpolar plant derived, without validating the popular use or exploring the mechanism of action. AIM OF THE STUDY: This study aimed to evaluate and validate the topical effects of a semisolid containing hydroethanolic extract obtained from the aerial parts of I...
February 11, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28192151/angiotensin-1-7-dependent-vasorelaxation-of-the-renal-artery-exhibits-unique-angiotensin-and-bradykinin-receptor-selectivity
#20
Mariam H M Yousif, Ibrahim F Benter, Debra I Diz, Mark C Chappell
Angiotensin-(1-7) [Ang-(1-7)] exhibits blood pressure lowering actions, inhibits cell growth, and reduces tissue inflammation and fibrosis which may functionally antagonize an activated Ang II-AT1 receptor axis. Since the vascular actions of Ang-(1-7) and the associated receptor/signaling pathways vary in different vascular beds, the current study established the vasorelaxant properties of the heptapeptide in the renal artery of male Wistar male rats. Ang-(1-7) produced an endothelium-dependent vasodilator relaxation of isolated renal artery segments pre-contracted by a sub-maximal concentration of phenylephrine (PE) (3×10(-7)M)...
February 10, 2017: Peptides
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