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aminocaproic acid

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https://www.readbyqxmd.com/read/29723672/tranexamic-acid-versus-aminocaproic-acid-for-blood-management-after-total-knee-and-total-hip-arthroplasty-a-systematic-review-and-meta-analysis
#1
REVIEW
Qiuliang Liu, Peishuo Geng, Longyan Shi, Qi Wang, Pengliang Wang
OBJECTIVE: To compare the efficacy and safety of tranexamic acid and aminocaproic acid for reducing blood loss and transfusion requirements after total knee and total hip arthroplasty. METHODS: We conduct electronic searches of Medline (1966-2017.11), PubMed (1966-2017.11), Embase (1980-2017.11), ScienceDirect (1985-2017.11) and the Cochrane Library (1900-2017.11). The primary outcomes, including total blood loss, hemoglobin decline and transfusion requirements...
April 30, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29703597/a-simple-one-step-ultrasonic-assisted-extraction-and-derivatization-method-coupling-to-high-performance-liquid-chromatographyfor-the-determination-of-%C3%AE%C2%B5-aminocaproic-acid-and-amino-acids-in-cosmetics
#2
Yuanqi Du, Ling Xia, Xiaohua Xiao, Gongke Li, Xiaoguang Chen
Nowadays, the safety of cosmetics is a widespread concern. Amines are common cosmetic additives. Some of them such as amino acids are beneficial. Another kind of amines, however, ε-aminocaproic acid (EACA) is prohibited to add into cosmetics for its adverse reactions. In this study, a simple, rapid, sensitive and eco-friendly one-step ultrasonic-assisted extraction and derivatization (UAE-D) method was developed for determination of EACA and amino acids in cosmetics by coupling with high-performance liquid chromatography (HPLC)...
April 18, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29680264/temporary-inhibition-of-the-plasminogen-activator-inhibits-periosteal-chondrogenesis-and-promotes-periosteal-osteogenesis-during-appendicular-bone-fracture-healing
#3
D Bravo, A M Josephson, V Bradaschia-Correa, M Z Wong, N L Yim, S S Neibart, S N Lee, J Huo, T Coughlin, M M Mizrahi, P Leucht
INTRODUCTION: Aminocaproic acid is approved as an anti-fibrinolytic for use in joint replacement and spinal fusion surgeries to limit perioperative blood loss. Previous animal studies have demonstrated a pro-osteogenic effect of aminocaproic acid in spine fusion models. Here, we tested if aminocaproic acid enhances appendicular bone healing and we sought to uncover the effect of aminocaproic acid on osteoprogenitor cells (OPCs) during bone regeneration. METHODS: We employed a well-established murine femur fracture model in adult C57BL/6J mice after receiving two peri-operative injections of aminocaproic acid...
April 19, 2018: Bone
https://www.readbyqxmd.com/read/29665835/the-efficacy-of-intravenous-aminocaproic-acid-in-primary-total-hip-and-knee-arthroplasty-a-meta-analysis
#4
Yong-Jiang Li, Bi-Sheng Xu, Sun-Peng Bai, Xiao-Jun Guo, Xiang-Yuan Yan
BACKGROUND: We conducted a meta-analysis from randomized controlled trials (RCTs) and non-RCTs to assess the efficacy of aminocaproic acid in cases of primary total hip arthroplasty (THA) or total knee arthroplasty (TKA). METHODS: Potentially relevant academic articles were identified from the Cochrane Library, MEDLINE (1966-2017 October 31), PubMed (1966-2017 October 31), EMBASE (1980-2017 October 31), and ScienceDirect (1985-2017 October 31). Secondary sources were identified from the references of the included literature...
April 17, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29657009/molecular-and-biochemical-characterization-of-taenia-solium-%C3%AE-enolase
#5
Shaohua Zhang, Yanan You, Xuenong Luo, Yadong Zheng, Xuepeng Cai
Enolase (EC 4.2.1.11) acts as a multifunctional enzyme in many organisms, being involved in metabolism, transcription regulation and pathogenesis. In the current study, the recombinant α-enolase from Taenia solium (His-Tseno) was prepared and antiserum against His-Tseno was generated in rabbits. Consequently, we analyzed the enzymatic characteristics, plasminogen binding activity, tissue localization and expression patterns of Tseno. The study demonstrated that the enzymatic activity of His-Tseno was enhanced at pH around 7...
April 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29605152/pharmacologic-hemostatic-agents-in-total-joint-arthroplasty-a-cost-effectiveness-analysis
#6
Dipak B Ramkumar, Niveditta Ramkumar, Stephanie J Tapp, Wayne E Moschetti
BACKGROUND: Total knee and hip arthroplasties can be associated with substantial blood loss, affecting morbidity and even mortality. Two pharmacological antifibrinolytics, ε-aminocaproic acid (EACA) and tranexamic acid (TXA) have been used to minimize perioperative blood loss, but both have associated morbidity. Given the added cost of these medications and the risks associated with then, a cost-effectiveness analysis was undertaken to ascertain the best strategy. METHODS: A cost-effectiveness model was constructed using the payoffs of cost (in United States dollars) and effectiveness (quality-adjusted life expectancy, in days)...
March 3, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29602626/intra-alveolar-epsilon-aminocaproic-acid-for-the-control-of-post-extraction-bleeding-in-anticoagulated-patients-randomized-clinical-trial
#7
R V da Silva, T B Gadelha, R R Luiz, S R Torres
The aim of this study was to compare the effectiveness of the intra-alveolar administration of epsilon-aminocaproic acid (EACA) and daily gentle rinsing with EACA mouthwash with that of routine postoperative procedures for the control of bleeding after tooth extraction in anticoagulated patients. A randomized clinical trial was conducted involving 52 patients submitted to 140 tooth extractions, assigned randomly to two groups. The intervention group was treated with intra-alveolar administration of EACA immediately after surgery and gentle rinsing with EACA mouthwash during the postoperative period...
March 27, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29567835/molecular-control-of-gene-expression-by-brucella-baar-an-iclr-type-transcriptional-repressor
#8
Julien Herrou, Daniel M Czyż, Aretha Fiebig, Jonathan W Willett, Youngchang Kim, Ruiying Wu, Gyorgy Babnigg, Sean Crosson
The general stress response sigma factor σE1 directly and indirectly regulates the transcription of dozens of genes that influence stress survival and host infection in the zoonotic pathogen Brucella abortus Characterizing the functions of σE1 -regulated genes therefore would contribute to our understanding of B. abortus physiology and infection biology. σE1 indirectly activates transcription of the IclR family regulator Bab2_0215, but the function of this regulator remains undefined. Here, we present a structural and functional characterization of Bab2_0215, which we have named <u>B</u> rucella <u>a</u>dipic<u>a</u>cid-activated<u>r</u>egulator (BaaR)...
March 22, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29555911/ixonnexin-from-tick-saliva-promotes-fibrinolysis-by-interacting-with-plasminogen-and-tissue-type-plasminogen-activator-and-prevents-arterial-thrombosis
#9
Teresa C Assumpção, Daniella M Mizurini, Dongying Ma, Robson Q Monteiro, Sydney Ahlstedt, Morayma Reyes, Michail Kotsyfakis, Thomas N Mather, John F Andersen, Jan Lukszo, José M C Ribeiro, Ivo M B Francischetti
Tick saliva is a rich source of modulators of vascular biology. We have characterized Ixonnexin, a member of the "Basic-tail" family of salivary proteins from the tick Ixodes scapularis. Ixonnexin is a 104 residues (11.8 KDa), non-enzymatic basic protein which contains 3 disulfide bonds and a C-terminal rich in lysine. It is homologous to SALP14, a tick salivary FXa anticoagulant. Ixonnexin was produced by ligation of synthesized fragments (51-104) and (1-50) followed by folding. Ixonnexin, like SALP14, interacts with FXa...
March 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29498487/plasminogen-binding-and-degradation-by-treponema-denticola-identification-of-the-plasminogen-binding-interface-on-the-fhbb-protein
#10
B K Tegels, L D Oliver, D P Miller, R T Marconi
Treponema denticola is a proteolytic-anaerobic spirochete whose abundance in the subgingival crevice correlates with periodontal disease severity. Treponema denticola evades serum-mediated killing through the binding of factor H (FH), a negative regulator of the complement system. The T. denticolaFH receptor has been identified as FhbB, an 11.4kDa immunodominant lipoprotein. Three distinct subfamilies of FhbB proteins have been delineated and designated as FhbB1, FhbB2 and FhbB3. In this study we demonstrate that all FhbB variants bind human plasminogen (Plg)...
June 2018: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/29477861/schistosoma-mansoni-venom-allergen-like-protein-18-smval18-is-a-plasminogen-binding-protein-secreted-during-the-early-stages-of-mammalian-host-infection
#11
Rafaela S Fernandes, Luis G V Fernandes, Andre S de Godoy, Patrícia A Miyasato, Eliana Nakano, Leonardo P Farias, Ana L T O Nascimento, Luciana C C Leite
Schistosomiasis is a neglected tropical disease caused by trematodes of the genus Schistosoma which have a complex life cycle characterized by an asexual multiplication phase in the snail intermediate host and a sexual reproduction phase in the mammalian definitive host. The initial steps of the human host infection involve the secretion of proteins contained in the acetabular glands of cercariae that promote parasite adhesion and proteolysis of the skin layers. Herein, we performed a functional analysis of SmVAL18, identified as one of the three SCP/TAPS proteins constituent of cercarial secretions...
April 2018: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/29471157/the-effectiveness-and-safety-of-aminocaproic-acid-for-reducing-blood-loss-in-total-knee-and-hip-arthroplasty-a-meta-analysis
#12
REVIEW
Qiang Dong, Yinguang Zhang, Xiang Sun, Fangke Hu
OBJECTIVE: This meta-analysis aimed to evaluate the safety and efficacy of aminocaproic acid in total knee arthroplasty (TKA) and total hip arthroplasty (THA). METHODS: The electronic databases include PubMed, Medline, Embase, Web of Science and the Cochrane Library from inception to January, 2018. Two reviewers abstracted total blood loss, hemoglobin drop, transfusion requirements, and postoperative complications. Data were using fixed-effects or random-effects models with weighted mean differences and risk difference for continuous and dichotomous variables, respectively...
April 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29462500/antifibrinolytic-drugs-for-treating-primary-postpartum-haemorrhage
#13
REVIEW
Haleema Shakur, Danielle Beaumont, Sue Pavord, Angele Gayet-Ageron, Katharine Ker, Hatem A Mousa
BACKGROUND: Postpartum haemorrhage (PPH) - heaving bleeding within the first 24 hours after giving birth - is one of the main causes of death of women after childbirth. Antifibrinolytics, primarily tranexamic acid (TXA), have been shown to reduce bleeding in surgery and safely reduces mortality in trauma patients with bleeding without increasing the risk of adverse events.An earlier Cochrane review on treatments for primary PPH covered all the various available treatments - that review has now been split by types of treatment...
February 20, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29424601/thromboembolic-complications-following-aminocaproic-acid-use-in-patients-with-hematologic-malignancies
#14
Rebecca C Juhl, Julianna V F Roddy, Tzu-Fei Wang, Junan Li, Jessica L Elefritz
Aminocaproic acid is frequently used in patients with hematologic malignancy that present with thrombocytopenia with or without hemorrhage. We conducted a retrospective study to evaluate the safety of aminocaproic acid in 109 patients with hematologic malignancies. Patients were included if aminocaproic acid had been administered for at least 24 hours for the prevention or treatment of thrombocytopenic hemorrhage. Our primary outcome was thromboembolic complications defined as arterial or venous thrombotic events objectively confirmed by imaging studies...
February 9, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29329000/synthesis-of-c-3-neoglycosides-of-digoxigenin-and-their-anticancer-activities
#15
Xiao-San Li, Yi-Chang Ren, Yu-Zhou Bao, Jie Liu, Xiao-Kun Zhang, You-Wei Zhang, Xue-Long Sun, Xin-Sheng Yao, Jin-Shan Tang
Cardiac glycosides exhibit significant anticancer effects and the glycosyl substitution at C3 position of digoxigenin is pivotal for their biological activity. In order to study the structure-activity relationship (SAR) of cardiac glycosides toward cancers and explore more potent anticancer agents, a series of C3 -O-neoglycosides and C3 -MeON-neoglycosides of digoxigenin were synthesized by the Koenigs-Knorr and neoglycosylation method, respectively. In addition, digoxigenin bisdigitoxoside and monodigitoxoside were prepared from digoxin by sodium periodate (NaIO4 ) oxidation and 6-aminocaproic acid hydrolysis...
February 10, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29319774/renal-artery-pseudoaneurysm
#16
Luiz Inácio Roman, Cauana Fabrício Efel, Victória Teles França, Carolina Meert Merten, Claus Dieter Dummer
The renal artery pseudoaneurysm embody a rare vascular complication coming of percutaneous procedures, renal biopsy, nephrectomy, penetrating traumas and more rarely blunt traumas. The clinical can be vary according the patient, the haematuria is the symptom more commom. Is necessary a high level of clinical suspicion for your diagnosis, this can be elucidated by through complementary exams as the eco-color Doppler and the computed tomography scan (CT). This report is a case of a patient submitted a right percutaneous renal biopsy and that, after the procedure started with macroscopic haematuria, urinary tenesmus and hypogastric pain...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29249727/expression-purification-and-biological-characterization-of-anaplasma-phagocytophilum-enolase
#17
Xiaoge Gao, Chen Zheng, Xiangye Liu
The obligate intracellular bacteria Anaplasma phagocytophilum is the etiological agent of human granulocytic anaplasmosis (HGA), an acute febrile tick-borne disease. A. phagocytophilum has a complex lifecycle within both vertebrate reservoirs and tick vectors, and employs a range of different molecules to infect and multiply within the host cells. Enolase is an essential glycolytic enzyme in intracellular glucose metabolism, but is also a multifunctional protein expressed on the pathogen surface, that binds to and promotes plasminogen conversion to plasmin...
January 9, 2018: Bioscience Trends
https://www.readbyqxmd.com/read/29183569/development-of-a-fibrinolysis-assay-for-canine-plasma
#18
U Jeffery, M B Brooks, D N LeVine
Unbalanced coagulation and fibrinolysis leads to hemorrhage or thrombosis. Thromboelastography has been used to characterize hypo- and hyper-fibrinolysis in dogs, however the technique requires specialized instrumentation and proprietary reagents that limit its availability. The aim of this study was to develop a simple microplate method for assessment of fibrinolysis in canine plasma. Plasma from healthy dogs was mixed in a microwell plate with tissue factor, calcium, phospholipid and tissue plasminogen activator...
November 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29054046/surface-modification-of-polyisobutylene-via-grafting-amino-acid-based-poly-acryloyl-6-aminocaproic-acid-as-multifunctional-material
#19
Yanqiu Du, Chunming Li, Jing Jin, Chao Li, Wei Jiang
Amino acid-based P(acryloyl-6-aminocaproic acid) (PAACA) brushes were fabricated on polyisobutylene (PIB) surface combined with plasma pre-treatment and UV-induced grafting polymerization to construct an antifouling and functional material. The hydrophilicity and hemocompatibility of PIB were largely improved by surface modification of AACA, which were confirmed by water contact angle and platelet adhesion, respectively. PAACA brushes were precisely located onto the surface of PIB to create a patterned PIB-g-PAACA structure, and then the carboxyl groups on PAACA was activated to immobilize functional protein-Concanavalin A (Con A)...
October 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29021312/incompletely-obliterated-cranial-arteriovenous-fistulae-are-safely-and-effectively-treated-with-adjuvant-%C3%AE%C2%B5-aminocaproic-acid
#20
Brian M Howard, Jonathan A Grossberg, Adam Prater, C Michael Cawley, Jacques E Dion, Frank C Tong
BACKGROUND: Administration of ε-aminocaproic acid (εACA), as adjuvant therapy following incompletely embolized cranial dural arteriovenous (dAVFs) and direct carotid artery to cavernous sinus fistulae (CCFs), is a strategy to promote post-procedural thrombosis. However, the efficacy of εACA to treat incompletely obliterated dAVFs and CCFs has not been published. The purpose of this study was to determine if administration of εACA following incomplete embolization of cranial dAVFs or CCFs was associated with an increased likelihood of cure on follow-up imaging compared with patients not given adjuvant εACA...
October 11, 2017: Journal of Neurointerventional Surgery
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