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hemostatic drugs

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https://www.readbyqxmd.com/read/28775075/first-selective-12-lox-inhibitor-ml355-impairs-thrombus-formation-and-vessel-occlusion-in-vivo-with-minimal-effects-on-hemostasis
#1
Reheman Adili, Benjamin E Tourdot, Katherine Mast, Jennifer Yeung, John Cody Freedman, Abigail Green, Diane K Luci, Ajit Jadhav, Anton Simeonov, David J Maloney, Theodore R Holman, Michael Holinstat
OBJECTIVE: Adequate platelet reactivity is required for maintaining hemostasis. However, excessive platelet reactivity can also lead to the formation of occlusive thrombi. Platelet 12(S)-lipoxygenase (12-LOX), an oxygenase highly expressed in the platelet, has been demonstrated to regulate platelet function and thrombosis ex vivo, supporting a key role for 12-LOX in the regulation of in vivo thrombosis. However, the ability to pharmacologically target 12-LOX in vivo has not been established to date...
August 3, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28749789/surgical-approach-to-piles-at-risk-of-severe-postoperative-pain-tricks-and-tips
#2
Domenico Tuscano, Linda D'Amore, Fabio Gaj, Paolo Bruzzone, Elena Annesi, Daniele Ceccarelli, Paolox Paolo Negro, Maria Romana Grimaldi, Francesco Gossetti
AIM: Aim of the present study is to propose a clinic-therapeutic course for the treatment of hemorrhoidal disease able to combine radical anatomic surgery with a painless postoperative path. MATERIAL OF STUDY: The present study is based on the evaluation of 20 selected patients who underwent radical hemorrhoidectomy for very high grade hemorrhoidal disease. The clinical course was characterized by careful bowel cleansing, hemorrhoidectomy according to Milligan-Morgan using LigaSure, intraoperative perianal infiltration of Ropivacaine and postoperative use of analgesic drugs...
July 24, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28732897/preparation-and-characterization-of-novel-chitosan-and-%C3%AE-cyclodextrin-polymer-sponges-for-wound-dressing-applications
#3
Claudia Flores, Marco Lopez, Nicolas Tabary, Christel Neut, Feng Chai, Didier Betbeder, Clément Herkt, Frederic Cazaux, Valerie Gaucher, Bernard Martel, Nicolas Blanchemain
Chitosan (CS) presents antibacterial, mucoadhesive and hemostatic properties and is an ideal candidate for wound dressing applications. This work reports the development of sponge-like materials obtained from physical hydrogels after the interaction between CS and a β-cyclodextrin polymer (PCD) in acidic conditions to provoke immediate gelation. Characterization consisted of zeta potential (ZP) measurements, rheology analysis, Fourier transform infrared (FTIR), Raman spectroscopy, wide angle X-ray scattering (WAXS) and scanning electron microscopy (SEM)...
October 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28731874/novel-targets-for-anticoagulants-lacking-bleeding-risk
#4
Julia K Bickmann, Trevor Baglin, Joost C M Meijers, Thomas Renné
PURPOSE OF REVIEW: Arterial and venous thromboembolic diseases are associated with significant morbidity and mortality and present a major medical burden. Currently used anticoagulants for the prevention or treatment of thromboembolic events including heparins, vitamin K-antagonists and inhibitors of thrombin or factor Xa target enzymes of the coagulation cascade that are critical for fibrin formation. However, fibrin is also necessary for hemostatic mechanisms to terminate blood loss at injury sites...
September 2017: Current Opinion in Hematology
https://www.readbyqxmd.com/read/28707198/platelet-targeted-pharmacologic-treatments-as-anti-cancer-therapy
#5
REVIEW
P Gresele, S Momi, M Malvestiti, M Sebastiano
Platelets act as multifunctional cells participating in immune response, inflammation, allergy, tissue regeneration, and lymphoangiogenesis. Among the best-established aspects of a role of platelets in non-hemostatic or thrombotic disorders, there is their participation in cancer invasion and metastasis. The interaction of many different cancer cells with platelets leads to platelet activation, and on the other hand platelet activation is strongly instrumental to the pro-carcinogenic and pro-metastatic activities of platelets...
July 13, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28686242/keratin-dissolution-extraction-and-biomedical-application
#6
REVIEW
Amin Shavandi, Tiago H Silva, Adnan A Bekhit, Alaa El-Din A Bekhit
Keratinous materials such as wool, feathers and hooves are tough unique biological co-products that usually have high sulfur and protein contents. A high cystine content (7-13%) differentiates keratins from other structural proteins, such as collagen and elastin. Dissolution and extraction of keratin is a difficult process compared to other natural polymers, such as chitosan, starch, collagen, and a large-scale use of keratin depends on employing a relatively fast, cost-effective and time efficient extraction method...
July 7, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28641649/-hemostatic-effect-of-spleen-invigorating-qi-replenishing-and-blood-containing-formula-on-simvastatin-induced-zebrafish-hemorrhage-model
#7
Yu-Ting Chu, Xiao-Yu Zhu, Ya-Yue Zhang, Bo Xia, Li Hou, Ru-Shun Song, Tian-Tian Li, Chun-Qi Li, Qing Dong, Xin-Yi Chen
OBJECTIVE: To investigate the hemostatic effect of spleen-invigorating, qi-replenishing and blood-containing formula on simvastatin-induced zebrafish hemorrhage model, and to compare with the effect of clearing heat and cooling blood formula. METHODS: Zebrafishes from breed A B line were treated with 0.5 µmol/L simvastatin for 24 hours to establish zebrafishes hemorrhage model. Under strict blinded experimental conditions, the above mentioned zebrafishes were then treated with experimental drug of different concentrations at the maximum non-lethal dose...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28634688/acute-variceal-bleeding-risk-stratification-and-management-including-tips
#8
REVIEW
Virginia Hernández-Gea, Claudia Berbel, Anna Baiges, Juan C García-Pagán
Acute variceal bleeding should be suspected in all patients with cirrhosis presenting with upper gastrointestinal bleeding. Vasoactive drugs and prophylactic antibiotics must be started as soon as possible, even before performing the diagnostic endoscopy. Once the patient is hemodynamically stable, upper gastrointestinal endoscopy should be performed in order to confirm the diagnosis and provide endoscopic therapy (preferably banding ligation). After this initial approach, the most appropriate therapy to prevent both early and late rebleeding must be instituted following a risk stratification strategy...
June 20, 2017: Hepatology International
https://www.readbyqxmd.com/read/28616396/management-for-non-variceal-upper-gastrointestinal-bleeding-in-elderly-patients-the-experience-of-a-tertiary-university-hospital
#9
Koichiro Kawaguchi, Hiroki Kurumi, Yohei Takeda, Kazuo Yashima, Hajime Isomoto
BACKGROUND: Peptic ulcer bleeding (PUB) is the main cause of non-variceal upper gastrointestinal bleeding (UGIB). Endoscopic treatment and acid suppression with proton-pump inhibitors (PPIs) are most important in the management of PUB and these treatments have reduced mortality. However, elderly patients sometimes have a poor prognostic outcome due to severe comorbidities. METHODS: A retrospective study was performed on 504 cases with acute non-variceal UGIB who were examined in our hospital, in order to reveal the risk factor of a poor outcome in elderly patients...
April 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28614427/a-new-era-of-thromboelastometry
#10
Tomaz Crochemore, Felipe Maia de Toledo Piza, Roseny Dos Reis Rodrigues, João Carlos de Campos Guerra, Leonardo José Rolim Ferraz, Thiago Domingos Corrêa
Severe hemorrhage with necessity of allogeneic blood transfusion is common complication in intensive care unit and is associated with increased morbidity and mortality. Prompt recognition and treatment of bleeding causes becomes essential for the effective control of hemorrhage, rationalizing the use of allogeneic blood components, and in this way, preventing an occurrence of their potential adverse effects. Conventional coagulation tests such as prothrombin time and activated partial thromboplastin time present limitations in predicting bleeding and guiding transfusion therapy in critically ill patients...
June 12, 2017: Einstein
https://www.readbyqxmd.com/read/28608003/transarterial-chemoembolization-for-management-of-hemoptysis-initial-experience-in-advanced-primary-lung-cancer-patients
#11
Akihiko Seki, Chigusa Shimono
PURPOSE: To evaluate the hemostatic effects of transarterial infusion chemotherapy in addition to embolization (chemoembolization) for advanced primary lung cancer with tumor-related hemoptysis. MATERIALS AND METHODS: Ten consecutive patients with stage IIIB/IV or recurrent primary lung cancer (squamous cell carcinoma in six, adenocarcinoma in four) who underwent chemoembolization for control of hemoptysis were enrolled. At enrollment, five patients were considered refractory and five had contraindications to standard therapies...
June 12, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28605821/abnormal-uterine-bleeding
#12
Cristina Laguna Benetti-Pinto, Ana Carolina Japur de Sá Rosa-E-Silva, Daniela Angerame Yela, José Maria Soares Júnior
Abnormal uterine bleeding is a frequent condition in Gynecology. It may impact physical, emotional sexual and professional aspects of the lives of women, impairing their quality of life. In cases of acute and severe bleeding, women may need urgent treatment with volumetric replacement and prescription of hemostatic substances. In some specific cases with more intense and prolonged bleeding, surgical treatment may be necessary. The objective of this chapter is to describe the main evidence on the treatment of women with abnormal uterine bleeding, both acute and chronic...
July 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28579071/tranylcypromine-in-mind-part-ii-review-of-clinical-pharmacology-and-meta-analysis-of-controlled-studies-in-depression
#13
REVIEW
Roland Ricken, Sven Ulrich, Peter Schlattmann, Mazda Adli
It has been over 50 years since a review has focused exclusively on the monoamine oxidase (MAO) inhibitor tranylcypromine (TCP). A new review has therefore been conducted for TCP in two parts which are written to be read preferably in close conjunction: part I - pharmacodynamics, pharmacokinetics, drug interactions, toxicology; and part II - clinical studies with meta-analysis of controlled studies in depression, practice of TCP treatment, place in therapy. The irreversible and nonselective MAO-A/B inhibitor TCP has been confirmed as an efficacious and safe antidepressant drug...
June 1, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28541681/platelet-microcapsule-hybrids-leverage-contractile-force-for-targeted-delivery-of-hemostatic-agents
#14
Caroline E Hansen, David R Myers, W Hunter Baldwin, Yumiko Sakurai, Shannon L Meeks, L Andrew Lyon, Wilbur A Lam
We report a cell-mediated, targeted drug delivery system utilizing polyelectrolyte multilayer capsules that hybridize with the patient's own platelets upon intravenous administration. The hybridized platelets function as the sensor and actuator for targeted drug delivery and controlled release in our system. These capsules are biochemically and mechanically tuned to enable platelet adhesion and capsule rupture upon platelet activation and contraction, enabling the targeted and controlled "burst" release of an encapsulated biotherapeutic...
June 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28532074/highly-effective-cu-zn-carbon-micro-nanofiber-polymer-nanocomposite-based-wound-dressing-biomaterial-against-the-p-aeruginosa-multi-and-extensively-drug-resistant-strains
#15
Mohammad Ashfaq, Nishith Verma, Suphiya Khan
Pseudomonas aeruginosa (P. aeruginosa) is the most prevalent bacteria in the infections caused by burn, surgery, and traumatic injuries. Emergence of the P. aeruginosa bacterial resistance against various clinical drugs for wound treatment is the major concern nowadays. The present study describes the synthesis of the polyvinyl alcohol (PVA) and cellulose acetate phthalate (CAP) polymeric composite film (~0.2mm thickness) reinforced with the Cu/Zn bimetal-dispersed activated carbon micro/nanofiber (ACF/CNF), as a wound dressing material...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28523327/complicated-diverticulitis-in-a-de-novo-kidney-transplanted-patient
#16
Liliana Ana TuŢă, Mădălina Boşoteanu, Eugen Dumitru, Mariana Deacu
Diverticular disease is frequent amongst the elderly and immunosuppressed patients. It mainly presents as sigmoid diverticulitis, but severe complications, like bleedings, infections and colon perforation may occur, frequently due to immunosuppressive therapy. Moreover, antibiotherapy and hemostatics may not efficiently control evolution in such cases. Early diagnose and adequate treatment of colonic diverticulosis complicated with lower gastrointestinal bleeding and diverticulitis in immunocompromised patients...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28507786/application-of-hyperosmotic-nanoemulsions-in-wound-healing-partial-thickness-injury-model-in-swine
#17
Sean Connell, Jianming Li, Abigail Durkes, Lynetta Freeman
Objective: In this work, we introduce a novel hyperosmotic nanoemulsion (HNE) topical agent for use in wound healing. These topical emulsion complexes combine a lipophilic thymol nanoemulsion with a hyperosmotic saccharide matrix. This combination has been previously shown to possess synergistic antimicrobial activity against a host of common and drug-resistant pathogens in vitro. Approach: In this study, we present additional data to assess the safety and efficacy of these emulsions in a partial thickness injury model in swine...
May 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28483015/hemostatic-effect-of-hemocoagulase-agkistrodon-on-surgical-wound-in-breast-cancer-surgery
#18
Xu Lu, Xin Yang, Mingwei Zhu, Bin Hua, Xiaojuan Niu, Wenzheng Xiao, Junmin Wei
Objective To evaluate the hemostatic effect of hemocoagulase agkistrodon on surgical wound in breast cancer surgery. Methods Totally 60 patients undergoing breast cancer surgery were enrolled in this prospective,randomized,double-blinded,and controlled study. All the patients met the inclusion and exclusion criteria and signed the informed consent. Hemocoagulase agkistrodon (2 U) was injected 20 minutes before surgery and 4 and 24 hours after surgery in the intervention group (n=30),whereas normal saline was used instead in the control group (n=30)...
April 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28452963/bioresponsive-materials-for-drug-delivery-based-on-carboxymethyl-chitosan-poly-%C3%AE-glutamic-acid-composite-microparticles
#19
Xiaoting Yan, Zongrui Tong, Yu Chen, Yanghe Mo, Huaiyu Feng, Peng Li, Xiaosai Qu, Shaohua Jin
Carboxymethyl chitosan (CMCS) microparticles are a potential candidate for hemostatic wound dressing. However, its low swelling property limits its hemostatic performance. Poly(γ-glutamic acid) (PGA) is a natural polymer with excellent hydrophilicity. In the current study, a novel CMCS/PGA composite microparticles with a dual-network structure was prepared by the emulsification/internal gelation method. The structure and thermal stability of the composite were determined by Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA)...
April 28, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28435120/the-role-of-platelets-in-hemostasis-and-the-effects-of-snake-venom-toxins-on-platelet-function
#20
REVIEW
Mayara Ribeiro de Queiroz, Bruna Barbosa de Sousa, Déborah Fernanda da Cunha Pereira, Carla Cristine Neves Mamede, Mariana Santos Matias, Nadia Cristina Gomes de Morais, Júnia de Oliveira Costa, Fábio de Oliveira
The human body has a set of physiological processes, known as hemostasis, which keeps the blood fluid and free of clots in normal vessels; in the case of vascular injury, this process induces the local formation of a hemostatic plug, preventing hemorrhage. The hemostatic system in humans presents complex physiological interactions that involve platelets, plasma proteins, endothelial and subendothelial structures. Disequilibrium in the regulatory mechanisms that control the growth and the size of the thrombus is one of the factors that favors the development of diseases related to vascular disorders such as myocardial infarction and stroke, which are among the leading causes of death in the western world...
July 2017: Toxicon: Official Journal of the International Society on Toxinology
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