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Kallikrein

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https://www.readbyqxmd.com/read/28093174/re-preserved-erectile-function-in-the-aged-transgenic-rat-harboring-human-tissue-kallikrein-1
#1
Allen D Seftel
No abstract text is available yet for this article.
February 2017: Journal of Urology
https://www.readbyqxmd.com/read/28088475/role-of-some-vasoactive-mediators-in-scorpion-envenomed-children-possible-relation-to-envenoming-outcome
#2
Sahar E M El-DeeK, Ayat A Sayed, Ahmed Y Nassar, Zeynab M Mohey-Eldeen, Hussein M Eldeeb, Abdel-Raheim M A Meki
Scorpion envenomation causes an autonomic storm resulting in changes in the vasoactive mediators' levels which lead to myocardial damage, cardiovascular disturbances, peripheral circulatory failure, pulmonary edema, multi-system-organ-failure and death. The study aimed to determine the circulating levels of adrenaline, noradrenaline, angiotensin converting enzyme (ACE), Angiotensin II (Ang II), kallikrein enzyme, nitric oxide (NO), aldosterone, and electrolytes Na(+), K(+) and Ca(+2) in scorpion envenomed children and to evaluate the potential relation between these vasoactive mediators, the severity of scorpion envenoming and the clinical outcome of envenomed children...
January 11, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28078811/the-effects-of-nanomaterials-on-blood-coagulation-in-hemostasis-and-thrombosis
#3
REVIEW
Jan Simak, Silvia De Paoli
The blood coagulation balance in the organism is achieved by the interaction of the blood platelets (PLTs) with the plasma coagulation system (PCS) and the vascular endothelial cells. In healthy organism, these systems prevent thrombosis and, in events of vascular damage, enable blood clotting to stop bleeding. The dysregulation of hemostasis may cause serious thrombotic and/or hemorrhagic pathologies. Numerous engineered nanomaterials are being investigated for biomedical purposes and are unavoidably exposed to the blood...
January 11, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28069606/proteolytic-properties-of-single-chain-factor-xii-a-mechanism-for-triggering-contact-activation
#4
Ivan Ivanov, Anton Matafonov, Mao-Fu Sun, Qiufang Cheng, S Kent Dickeson, Ingrid M Verhamme, Jonas Emsley, David Gailani
When blood is exposed to variety of artificial surfaces and biologic substances, the plasma proteins factor XII (FXII) and prekallikrein undergo reciprocal proteolytic conversion to the proteases αFXIIa and α-kallikrein by a process called contact activation. These enzymes contribute to host-defense responses including coagulation, inflammation, and fibrinolysis. The initiating event in contact activation is debated. To test the hypothesis that single-chain FXII expresses activity that could initiate contact activation, we prepared human FXII variants lacking the Arg353 cleavage site required for conversion to αFXIIa (FXII-R353A), or lacking the three known cleavage sites at Arg334, Arg343, and Arg353 (FXII-T, for "triple" mutant), and compared their properties to wild type αFXIIa...
January 9, 2017: Blood
https://www.readbyqxmd.com/read/28065968/therapeutic-uses-of-pineapple-extracted-bromelain-in-surgical-care-a-review
#5
Zehra Abdul Muhammad, Tashfeen Ahmad
Bromelain is an extract obtained from the pineapple plant and is used as a traditional folk remedy for several ailments. In this review, a comprehensive electronic database search was carried out to compile available literature on therapeutic implications of bromelain. Pharmaceutical value of bromelain has been demonstrated in different surgical sub-specialties. Diverse biological processes like anti-inflammatory, anti-oedematous, analgesic, anti-thrombotic, exfoliation etc. are involved in bromelain's therapeutic actions, mediated through the kallikrein-kinin and arachidonic acid pathways as well as through effects on cell mediated immunity...
January 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28054463/kallikrein-related-peptidase-expression-in-odontogenic-cysts-and-tumors-an-immunohistochemical-comparative-study
#6
Mark Roger Darling, Rebecca Woodford, Karl Kevin Cuddy, Linda Jackson-Boeters, Alyssa Hayter, Jeyanth Inkaran, Eleftherios P Diamandis, Zia Khan
AIM: The aim of the present study was to profile the expression of human kallikrein (KLK)-related peptidases (KLK) in odontogenic lesions. METHODS: Paraffin-embedded, formalin-fixed, non-odontogenic (control) and odontogenic lesions were stained for KLK using a standard immunohistochemical technique. The intensity and proportion of epithelial cells stained was scored. Reverse transcription-polymerase chain reaction was utilized to evaluate KLK 1-15 mRNA expression in ameloblastomas...
January 4, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28011710/identification-of-novel-loci-affecting-circulating-chromogranins-and-related-peptides
#7
Beben Benyamin, Adam X Maihofer, Andrew J Schork, Bruce A Hamilton, Fangwen Rao, Geert W Schmid-SchÖnbein, Kuixing Zhang, Manjula Mahata, Mats Stridsberg, Nicholas J Schork, Nilima Biswas, Vivian Y Hook, Zhiyun Wei, Grant W Montgomery, Nicholas G Martin, Caroline M Nievergelt, John B Whitfield, Daniel T O'Connor
Chromogranins are pro-hormone secretory proteins released from neuroendocrine cells, with effects on control of blood pressure. We conducted a genome-wide association study for plasma catestatin, the catecholamine release inhibitory peptide derived from chromogranin A (CHGA), and other CHGA- or chromogranin B (CHGB)-related peptides, in 545 US and 1252 Australian subjects. This identified loci on chromosomes 4q35 and 5q34 affecting catestatin concentration (p=3.40 x 10(-30) for rs4253311 and 1.85 x 10(-19) for rs2731672, respectively)...
December 22, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28011482/galectin-3-is-implicated-in-tumor-progression-and-resistance-to-anti-androgen-drug-through-regulation-of-androgen-receptor-signaling-in-prostate-cancer
#8
Tsogt-Ochir Dondoo, Tomoharu Fukumori, Kei Daizumoto, Tomoya Fukawa, Miho Kohzuki, Minoru Kowada, Yoshito Kusuhara, Hidehisa Mori, Hiroyoshi Nakatsuji, Masayuki Takahashi, Hiro-Omi Kanayama
BACKGROUND: Castration-resistant prostate cancer (CRPC)-related deaths are increasing worldwide. Therefore, clarification of the mechanisms of hormone-related tumor progression and resistance to anti-androgen drugs is useful in order to develop strategies for appropriate treatment of CRPC. Galectin-3 has been shown to be correlated with tumor progression in a variety of cancer types through the regulation of tumor proliferation, angiogenesis, and apoptosis. MATERIALS AND METHODS: We examined tumor cell invasion and migration using the xCELLigence system...
January 2017: Anticancer Research
https://www.readbyqxmd.com/read/28007958/polyphosphate-and-rna-differentially-modulate-the-contact-pathway-of-blood-clotting
#9
Joshua M Gajsiewicz, Stephanie A Smith, James H Morrissey
The contact pathway of the plasma clotting cascade is dispensable for normal hemostasis, but contributes to thrombosis and serves as a bridge between inflammation and coagulation. This pathway is triggered upon exposure of plasma to certain anionic polymers and artificial surfaces. Recently, extracellular nucleic acids and inorganic polyphosphate (polyP) have been implicated as being important (patho)physiologically relevant activators of this pathway. However, mechanistic details regarding how nucleic acids or polyP modulate the individual reactions of the contact pathway have been lacking...
December 22, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28000848/transcriptome-reveals-the-overexpression-of-a-kallikrein-gene-cluster-klk1-3-7-8-12-in-the-tibetans-with-high-altitude-associated-polycythemia
#10
Kang Li, Luobu Gesang, Zeng Dan, Lamu Gusang
High altitude-associated polycythemia (HAPC) is a very common disease. However, it the disease is still unmanageable and the related molecular mechanisms remain largely unclear. In the present study, we aimed to explore the molecular mechanisms responsible for the development of HAPC using transcriptome analysis. Transcriptome analysis was conducted in 3 pairs of gastric mucosa tissues from patients with HAPC and healthy residents at a similar altitude. Endoscopy and histopathological analyses were used to examine the injury to gastric tissues...
February 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27990282/the-complement-system-an-evolution-in-progress
#11
REVIEW
Berhane Ghebrehiwet
The complement system, which consists of three independent but interacting pathways, constitutes a powerful arm of innate immunity. Its major function is to recognize and destroy pathogenic microorganisms as well as eliminate modified self-antigens. Although it is a fine-tuned system with innate capacity to discriminate self from non-self as well as danger from non-danger signals, an unwarranted activation can nonetheless occur and cause tissue destruction. To prevent such activation, specific regulators present both in plasma and on the cell surface tightly control it...
2016: F1000Research
https://www.readbyqxmd.com/read/27988430/kinin-receptors-key-regulators-of-autoimmunity
#12
REVIEW
Rafael Cypriano Dutra
The central function of the immune system is to protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body, and preventing the onset of illness and infection. Moreover, the immune system is constantly challenged to discriminate self vs. non-self and mediate the correct response, a phenomenon called self-tolerance. The failure of mechanisms responsible for self-tolerance and induction of an immune response against components of the self, induces autoimmunity and culminates however, in several autoimmune diseases...
December 15, 2016: Autoimmunity Reviews
https://www.readbyqxmd.com/read/27984711/evaluation-of-anaphylactoid-constituents-in-vitro-and-in-vivo
#13
Yubin Xu, Chunyan Liu, Deqiang Dou, Qiuhong Wang
Natural medicine injections have been widely used in clinics, while adverse reaction reports also have increased rapidly in recent years. To examine the anaphylactoid constituents of natural medicine injections, RBL-2H3 cell degranulation and human serum complement activation models were used to screen the anaphylactoid constituents, and the BN rat model was used to explore the anaphylactoid mechanism of these constituents. The result of an in vitro study showed that the individual compounds of natural medicine injections (chlorogenic acid, hyodeoxycholic acid, cholalic acid, ginkgolic acid, phillyrin, schisandrin B, schisandrin A, puerarin, and tanshinone IIA) and polysaccharide could not induce RBL-2H3 to release histamine and β-hexosaminidase, while proteins Tween-80 and tannic acid were the main anaphylactoid constituents in the natural medicine injections...
February 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/27965959/a-novel-antithrombotic-mechanism-mediated-by-the-receptors-of-the-kallikrein-kinin-and-renin-angiotensin-systems
#14
REVIEW
Alvin H Schmaier
The contact activation (CAS) and kallikrein/kinin (KKS) systems regulate thrombosis risk in two ways. First, the CAS influences contact activation-induced factor XI activation and thrombin formation through the hemostatic cascade. Second, prekallikrein (PK) and bradykinin of the KKS regulate expression of three vessel wall G-protein-coupled receptors, the bradykinin B2 receptor (B2R), angiotensin receptor 2, and Mas to influence prostacyclin formation. The degree of intravascular prostacyclin formation inversely regulates intravascular thrombosis risk...
2016: Frontiers in Medicine
https://www.readbyqxmd.com/read/27960614/long-term-individual-shear-rate-therapy-counterpulsation-enhances-plasma-nitrite-release-in-patients-with-pad
#15
Michèle Brix, Eva-Elina Buschmann, Andreas Zietzer, Jonnel Anthony Jaurigue, Lulu Li, Constantin Jungk, Ivo Buschmann, Doreen Janke, Philipp Hillmeister
BACKGROUND: Individual shear rate therapy (ISRT) has been designed as a novel non-invasive treatment option for peripheral artery disease (PAD) patients and has been shown to improve endothelial function and walking distance. The aim of this study was to elucidate the impact of ISRT on the level of nitric oxide in patient blood plasma and the expression of related molecular markers in peripheral blood mononuclear cells (PBMCs). Molecular diagnostic tests were performed for two ISRT trials...
December 14, 2016: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27959403/bcl11b-regulates-enamel-matrix-protein-expression-and-dental-epithelial-cell-differentiation-during-rat-tooth-development
#16
Ziyue Li, Guoqing Chen, Yaling Yang, Weihua Guo, Weidong Tian
Amelogenesis, beginning with thickened epithelial aggregation and ending with highly mineralized enamel formation, is a process mediated by a complex signaling network that involves several molecules, including growth and transcription factors. During early tooth development, the transcription factor B‑cell CLL/lymphoma 11B (Bcl11b) participates in dental epithelial cell proliferation and differentiation. However, whether it affects the postnatal regulation of enamel matrix protein expression and ameloblast differentiation remains unclear...
January 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27941022/basic-residues-of-%C3%AE-sheet-a-contribute-to-heparin-binding-and-activation-of-vaspin-serpina12
#17
David Ulbricht, Kathrin Oertwig, Kristin Arnsburg, Anja Saalbach, John T Heiker
Many members of the serine protease inhibitor (serpin) family are activated by glycosaminoglycans (GAG). Visceral adipose tissue-derived serpin (vaspin), serpinA12 of the serpin family, and its target protease kallikrein 7 (KLK7) are heparin binding proteins and inhibition of KLK7 by vaspin is accelerated by heparin. However, the nature of GAG binding to vaspin is not known. Here, we measured vaspin binding of various glycosaminoglycans and low molecular weight heparins by microscale thermophoresis and analyzed acceleration of protease inhibition by these molecules...
December 9, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27925683/inorganic-polyphosphate-a-key-modulator-of-inflammation
#18
REVIEW
Seyed Mahdi Hassanian, Amir Avan, Abdolreza Ardeshirylajimi
Inorganic polyphosphate (PolyP) is a molecule with prothrombotic and proinflammatory properties in blood. PolyP activates the NF-κB signaling pathway, increases the expression of cell surface adhesion molecules and disrupts the vascular barrier integrity of endothelial cells. PolyP-induced NF-κB activation and vascular hyperpermeability are regulated by the mTORC1 and mTORC2 pathways, respectively. Through interaction with RAGE and P2Y1 receptors, PolyP dramatically amplifies the proinflammatory responses of nuclear proteins...
December 7, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/27924789/kallikrein-kinin-system-is-it-the-fountain-of-youth
#19
Giulio Garaffa, Fabio Castiglione
No abstract text is available yet for this article.
December 2, 2016: Asian Journal of Andrology
https://www.readbyqxmd.com/read/27922627/blood-based-and-urinary-prostate-cancer-biomarkers-a-review-and-comparison-of-novel-biomarkers-for-detection-and-treatment-decisions
#20
REVIEW
R J Hendriks, I M van Oort, J A Schalken
BACKGROUND: The diagnosis of prostate cancer (PCa) is currently based on serum PSA testing and/or abnormal digital rectal examination and histopathologic evaluation of prostate biopsies. The main drawback of PSA testing is the lack of specificity for PCa. To improve early detection of PCa more specific biomarkers are needed. In the past few years, many new promising biomarkers have been identified; however, to date, only a few have reached clinical practice. METHODS: In this review, we discuss new blood-based and urinary biomarker models that are promising for usage in PCa detection, follow-up and treatment decision-making...
December 6, 2016: Prostate Cancer and Prostatic Diseases
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