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https://www.readbyqxmd.com/read/28710089/endothelium-neutrophil-communication-via-b1-kinin-receptor-bearing-microvesicles-in-vasculitis
#1
EDITORIAL
Pierre-Louis Tharaux, Neeraj Dhaun
No abstract text is available yet for this article.
July 14, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28700653/plasma-bradykinin-and-early-diabetic-nephropathy-lesions-in-type-1-diabetes-mellitus
#2
Kevin M Wheelock, Jian Cai, Helen C Looker, Michael L Merchant, Robert G Nelson, Gudeta D Fufaa, E Jennifer Weil, Harold I Feldman, Ramachandran S Vasan, Paul L Kimmel, Brad H Rovin, Michael Mauer, Jon B Klein
OBJECTIVE: To examine the association of bradykinin and related peptides with the development of diabetic nephropathy lesions in 243 participants with type 1 diabetes (T1D) from the Renin-Angiotensin System Study who, at baseline, were normoalbuminuric, normotensive and had normal or increased glomerular filtration rate (GFR). DESIGN: Plasma concentrations of bradykinin and related peptides were measured at baseline by quantitative mass spectrometry. All participants were randomly assigned at baseline to receive placebo, enalapril or losartan during the 5 years between kidney biopsies...
2017: PloS One
https://www.readbyqxmd.com/read/28699813/prolylcarboxypeptidase-prcp-inhibitors-and-the-therapeutic-uses-thereof-a-patent-review
#3
Thomas H Graham
Prolylcarboxypeptidase (PrCP) is a serine protease that produces or degrades signaling proteins in several important pathways including the renin-angiotensin system (RAS), kallikrein-kinin system (KKS) and pro-opiomelanocortin (POMC) system. PrCP has the potential to be a therapeutic target for cardiovascular, inflammatory and metabolic diseases. Numerous classes of PrCP inhibitors have been developed by rational drug design and from high-throughput screening hits. These inhibitors have been tested in mouse models to assess their potential as new therapeutics...
July 12, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28690145/salivary-gland-transcripts-of-the-kissing-bug-panstrongylus-chinai-a-vector-of-chagas-disease
#4
Hirotomo Kato, Ryan C Jochim, Eduardo A Gomez, Shunsuke Tsunekawa, Jesus G Valenzuela, Yoshihisa Hashiguchi
The saliva of hematophagous arthropods injected during blood feeding contains potent pharmacologically active components to counteract the host hemostatic and inflammatory systems. In the present study, dominant salivary gland transcripts of Panstrongylus chinai, a vector of Chagas disease, were analyzed by sequencing randomly selected clones of the salivary gland cDNA library. This analysis showed that 56.5% of the isolated transcripts coded for putative secreted proteins, of which 73.7% coded for proteins belonging to the lipocalin family...
July 6, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28685545/decreased-plasma-kallikrein-5-concentrations-in-patients-with-chronic-spontaneous-urticaria
#5
A Grzanka, A Damasiewicz-Bodzek, M Szumska, A Kasperska-Zajac
Little is known about the role of the kallikrein-kinin system in chronic spontaneous urticaria (CSU). Kallikrein 5 (KLK5), a trypsin-like enzyme, is the most abundant in the skin and plays a role in itching and inflammatory reaction. In this study, we determined plasma KLK5 concentration, and its associations with acute phase response in CSU patients. Concentrations of KLK5 in plasma and CRP in serum were measured in patients with CSU of varying severity and in the healthy subjects. Plasma KLK5 concentrations were significantly lower in CSU (all) and moderate-severe CSU patients, as compared with the controls...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28655904/danhong-injection-reduces-vascular-remodeling-and-up-regulates-the-kallikrein-kinin-system-in-spontaneously-hypertensive-rats
#6
Xiaohu Yang, John Orgah, Dandan Wang, Guanwei Fan, Hu Jingyang, Jihong Han, Gangjian Qin, Xiumei Gao, Yan Zhu
Although Danhong injection (DHI) is one of the most prescribed cardiovascular medicines in China, its therapeutic indications and mechanisms remain partially defined. We now identify molecular targets of DHI in resistance vasculatures and demonstrate its role in vascular function and blood pressure (BP) regulation. BP was determined in DHI, Losartan, and placebo- treated Spontaneously Hypertensive Rats (SHR) by both noninvasive and invasive measurements. Vasorelaxation was examined both in conduit and resistance vasculature by ex vivo aortic rings...
June 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28651026/binding-of-human-plasminogen-and-high-molecular-mass-kininogen-by-cell-surface-exposed-proteins-of-candida-parapsilosis
#7
Justyna Karkowska-Kuleta, Dorota Zajac, Grazyna Bras, Oliwia Bochenska, Maria Rapala-Kozik, Andrzej Kozik
Pathogenic microbes can recruit to their cell surface human proteins that are components of important proteolytic cascades involved in coagulation, fibrinolysis and innate immune response. Once located at the bacterial or fungal surface, such deployed proteins might be utilized by pathogens to facilitate invasion and dissemination within the host organism by interfering with functionality of these systems or by exploiting specific activity of the bound enzymes. Aim of the study presented here was to characterize this phenomenon in Candida parapsilosis (Ashford) Langeron et Talice - an important causative agent of systemic fungal infections (candidiases and candidemias) in humans...
June 24, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28641140/effect-of-c1-inh-on-ischemia-reperfusion-injury-in-a-porcine-limb-ex-vivo-perfusion-model
#8
Mai M Abdelhafez, Jane Shaw, Damian Sutter, Jonas Schnider, Yara Banz, Hansjörg Jenni, Esther Voegelin, Mihai A Constantinescu, Robert Rieben
Revascularization of an amputated limb within 4-6h is essential to avoid extensive ischemia/reperfusion (I/R) injury leading to vascular leakage, edema and tissue necrosis. I/R injury is a pathological inflammatory condition that occurs during reperfusion of an organ or tissue after prolonged ischemia. It is characterized by a complex crosstalk between endothelial cell activation and the activation of plasma cascades. Vasculoprotective pharmacological intervention to prevent I/R injury might be an option to prolong the time window between limb amputation and successful replantation...
June 19, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28621557/a-positive-association-between-the-human-tissue-kallikerin-gene-a2233c-polymorphism-and-blood-pressure-response-to-benazepril
#9
Zhe Hong, Liying Pan, Jiali Fei, Zhangqing Ma, Zongyuan Hong
BACKGROUND: It is generally believed that essential hypertension is influenced by both genetic and environmental factors, as well as their interactions. Tissue kallikrein encoded by the tissue kallikrein gene (KLK1) is a key serine proteinase of kallikrein-kinin system, which is capable of generating potent vasactive peptides, kinins, by selective cleavage of the kininogen substrate. It was reported that the A2233 → C polymorphism in KLK1 gene is associated with essential hypertension...
2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28615126/unveiling-the-participation-of-avian-kinin-ornithokinin-and-its-receptors-in-the-chicken-inflammatory-response
#10
Rodrigo Guabiraba, Damien Garrido, Geoffrey Bailleul, Angélina Trotereau, Mélanie Pinaud, Anne-Christine Lalmanach, Nathalie K Chanteloup, Catherine Schouler
Vasoactive peptides are key early mediators of inflammation released through activation of different enzymatic systems. The mammalian kinin-kallikrein (K-KLK) system produces bradykinin (BK) through proteolytic cleavage of a kininogen precursor by enzymes named kallikreins. BK acts through specific ubiquitous G-protein coupled receptors (B1R and B2R) to participate in physiological processes and inflammatory responses, such as activation of mononuclear phagocytes. In chickens, the BK-like nonapeptide ornithokinin (OK) has been shown to promote intracellular calcium increase in embryonic fibroblasts and to be vasodilatory in vivo...
June 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28592188/polymer-coated-cardiopulmonary-bypass-circuit-attenuates-upregulation-of-both-proteases-protease-inhibitors-and-platelet-degranulation-in-pigs
#11
Shoichi Suehiro, Kouji Shimizu, Kensuke Imai, Atsushi Niii, Kazuhiro Akeho, Hayato Nakata, Akane Yamaguchi, Ken-Ichi Matsumoto, Teiji Oda
INTRODUCTION: Interaction of blood with a cardiopulmonary bypass (CPB) circuit activates the coagulation-fibrinolysis, complement and kinin-kallikrein systems that are mainly supported by proteases and their inhibitors. METHODS: Biocompatibility of a new polymer-coated (SEC-coated) CPB circuit was globally evaluated and compared with that of a non-coated CPB circuit by quantitative proteomics, using isobaric tags for relative and absolute quantification labeling tandem mass spectrometry...
June 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28573254/structural-characteristics-and-antihypertensive-effects-of-angiotensin-i-converting-enzyme-inhibitory-peptides-in-the-renin-angiotensin-and-kallikrein-kinin-systems
#12
Sivananthan Manoharan, Adawiyah Suriza Shuib, Noorlidah Abdullah
BACKGROUND: The commercially available synthetic angiotensin-I-converting enzyme (ACE) inhibitors are known to exert negative side effects which have driven many research groups globally to discover the novel ACE inhibitors. METHOD: Literature search was performed within the PubMed, ScienceDirect.com and Google Scholar. RESULTS: The presence of proline at the C-terminal tripeptide of ACE inhibitor can competitively inhibit the ACE activity...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28554847/panicolytic-like-action-of-bradykinin-in-the-dorsal-periaqueductal-gray-through-%C3%AE-opioid-and-b2-kinin-receptors
#13
Caio César Sestile, Jhonatan Christian Maraschin, Vanessa Scalco Gama, Hélio Zangrossi, Frederico Guilherme Graeff, Elisabeth Aparecida Audi
A wealth of evidence has shown that opioid and kinin systems may control proximal defense in the dorsal periaqueductal gray matter (dPAG), a critical panic-associated area. Studies with drugs that interfere with serotonin-mediated neurotransmission suggest that the μ-opioid receptor (MOR) synergistically interacts with the 5-HT1A receptor in the dPAG to inhibit escape, a panic-related behavior. A similar inhibitory effect has also been reported after local administration of bradykinin (BK), which is blocked by the non-selective opioid receptor antagonist naloxone...
May 26, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28552561/fxii-promotes-proteolytic-processing-of-the-lrp1-ectodomain
#14
Lukasz Wujak, Christina Hesse, Katherina Sewald, Danny Jonigk, Peter Braubach, Gregor Warnecke, Hans-Gerd Fieguth, Armin Braun, Günter Lochnit, Philipp Markart, Liliana Schaefer, Malgorzata Wygrecka
BACKGROUND: Factor XII (FXII) is a serine protease that is involved in activation of the intrinsic blood coagulation, the kallikrein-kinin system and the complement cascade. Although the binding of FXII to the cell surface has been demonstrated, the consequence of this event for proteolytic processing of membrane-anchored proteins has never been described. METHODS: The effect of FXII on the proteolytic processing of the low-density lipoprotein receptor-related protein 1 (LRP1) ectodomain was tested in human primary lung fibroblasts (hLF), alveolar macrophages (hAM) and in human precision cut lung slices (hPCLS)...
August 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28549900/four-decades-of-ocular-renin-angiotensin-and-kallikrein-kinin-systems-1977-2017
#15
REVIEW
Rajko Igić
This review offers a contemporary history of the renin-angiotensin (RAS) and kallikrein-kinin (KKS) systems with emphasis on how these complex systems affect the eye. It describes the types of communication (cross-talk) between the two systems and evaluates their potential role in the development of diabetic retinopathy, diabetic macular edema, age-related macular degeneration, glaucoma, and uveitis. In addition to detailing the important physiological actions of components of the RAS and KKS, possibilities are suggested for new therapeutic avenues in the treatment of common ocular diseases...
May 23, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28538015/the-kallikrein-kinin-system-in-diabetic-kidney-disease
#16
Wenjuan Liu, Robert C Stanton, Zhaoyun Zhang
PURPOSE OF REVIEW: Diabetic kidney disease (DKD) is one of the most common complications in diabetes mellitus and accounts for a large proportion of clinical nephrology practice. Studies have shown that the kallikrein-kinin system (KKS) may be involved in several pathogenic mechanisms that contribute to DKD, including oxidative stress, inflammatory cytokines, and profibrotic autacoids. This review focuses on recent research advance on the potential role of the KKS in the development of DKD and its clinical relevance...
May 19, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28503149/vascular-kinin-b1-and-b2-receptors-determine-endothelial-dysfunction-through-neuronal-nitric-oxide-synthase
#17
Thássio R R Mesquita, Gianne P Campos-Mota, Virgínia S Lemos, Jader S Cruz, Itamar C G de Jesus, Enilton A Camargo, Jorge L Pesquero, João B Pesquero, Luciano Dos Santos A Capettini, Sandra Lauton-Santos
B1- and B2-kinin receptors are G protein-coupled receptors that play an important role in the vascular function. Therefore, the present study was designed to evaluate the participation of kinin receptors in the acetylcholine (ACh)-induced vascular relaxation, focusing on the protein-protein interaction involving kinin receptors with endothelial and neuronal nitric oxide synthases (eNOS and nNOS). Vascular reactivity, nitric oxide (NO·) and reactive oxygen species (ROS) generation, co-immunoprecipitation were assessed in thoracic aorta from male wild-type (WT), B1- (B1R(-/-)), B2- (B2R(-/-)) knockout mice...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28469598/involvement-of-the-bradykinin-b1-receptor-in-microglial-activation-in-vitro-and-in-vivo-studies
#18
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/28469465/characterization-of-vitreous-and-aqueous-proteome-in-humans-with-proliferative-diabetic-retinopathy-and-its-clinical-correlation
#19
Sankarathi Balaiya, Zimei Zhou, Kakarla V Chalam
AIMS: Proliferative diabetic retinopathy (PDR) is associated with microvascular complications that cause biochemical changes in the human retina and alter the proteome of vitreous humor and aqueous humor (AH). METHODS: Human vitreous humor and AH of PDR subjects were collected. Subjects who had surgery for epiretinal membrane or macular hole served as controls. Protein profiles were obtained and analyzed after running the samples on a liquid chromatography-mass spectrometry/mass spectrometry...
2017: Proteomic Insights
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
#20
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
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