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https://www.readbyqxmd.com/read/28103327/isolation-characterization-and-evaluation-of-collagen-from-jellyfish-rhopilema-esculentum-kishinouye-for-use-in-hemostatic-applications
#1
Xiaochen Cheng, Ziyu Shao, Chengbo Li, Lejun Yu, Mazhar Ali Raja, Chenguang Liu
Hemostat has been a crucial focus since human body is unable to control massive blood loss, and collagen proves to be an effective hemostat in previous studies. In this study, collagen was isolated from the mesoglea of jellyfish Rhopilema esculentum Kishinouye and its hemostatic property was studied. The yields of acid-soluble collagen (ASC) and pepsin-soluble (PSC) were 0.12% and 0.28% respectively. The SDS-PAGE patterns indicated that the collagen extracted from jellyfish mesoglea was type I collagen. The lyophilized jellyfish collagen sponges were cross-linked with EDC and interconnected networks in the sponges were revealed by scanning electron microscope (SEM)...
2017: PloS One
https://www.readbyqxmd.com/read/28099744/a-retrospective-cohort-study-of-hemostatic-agent-use-during-hysterectomy-and-risk-of-post-operative-complications
#2
John A Harris, Shitanshu Uppal, Neil Kamdar, Carolyn W Swenson, Darrell Campbell, Daniel M Morgan
OBJECTIVE: To determine if the use of intraoperative hemostatic agents was a risk factor for post-operative adverse events within 30 days of patients undergoing hysterectomy. METHOD: A population-based retrospective cohort study included data from patients undergoing hysterectomy for any indication between January 1, 2013, and December 31, 2014, at 52 hospitals in Michigan, USA. Any individuals with missing covariate data were excluded, and multivariable logistic regression and propensity score-matching were used to estimate the rate of post-operative adverse events associated with intra-operative hemostatic agents independent of demographic and surgical factors...
February 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28097913/cost-consequence-analysis-of-different-active-flowable-hemostatic-matrices-in-cardiac-surgical-procedures
#3
D Makhija, M Rock, Y Xiong, J D Epstein, M R Arnold, O M Lattouf, D Calcaterra
BACKGROUND: A recent retrospective comparative effectiveness study found that use of FLOSEAL® Hemostatic Matrix in cardiac surgery was associated with significantly lower risks of complications, blood transfusions, surgical revisions and shorter length of surgery than use of SURGIFLO(®) Hemostatic Matrix. These outcome improvements in cardiac surgery procedures may translate to economic savings for hospitals and payers. OBJECTIVE: The objective of this study was to estimate the cost-consequence of two flowable hemostatic matrices (FLOSEAL or SURGIFLO) in cardiac surgeries for US hospitals...
January 18, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28088737/the-hemostatic-effect-study-of-cirsium-setosum-on-regulating-%C3%AE-1-ars-via-mediating-norepinephrine-synthesis-by-enzyme-catalysis
#4
Nianwei Chang, Yanmei Li, Mengge Zhou, Jie Gao, Yuanyuan Hou, Min Jiang, Gang Bai
BACKGROUND: Cirsium setosum (CS) is the aboveground part of Cephalanoplos segetum Kitam. Although it has been used as a hemostatic treatment for thousands of years and is still in use today, the mechanism of CS on regulating ARs is still not clear. PURPOSE: In this study, we aimed to clarify the mechanism of CS on regulating ARs. METHODS: We developed a simple method based on UPLC/Q-TOF MS combined adrenergic receptor dual-luciferase reporter assay systems for the rapid determination of active constituents in CS...
January 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28088464/microparticles-inflammatory-and-haemostaticbiomarkers-in-polycystic-ovary-syndrome
#5
L M L Carvalho, C N Ferreira, M O Sóter, M F Sales, K F Rodrigues, S R Martins, A L Candido, F M Reis, I O Silva, F M F Campos, K B Gomes
Polycystic Ovary Syndrome (PCOS) is associated with a chronic low-grade inflammation and predisposition to hemostatic and atherosclerotic complications. This case-control study evaluated the microparticles (MPs) profile in patients with the PCOS and related these MPs to clinical and biochemical parameters. MPs derived from platelets (PMPs), leuckocytes (LMPs) and endothelial cells (EMPs) were evaluated, as well as MPs expressing tissue factor (TFMPs), by flow cytometry, comparing women with PCOS (n = 50) and a healthy control group (n = 50)...
January 11, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28088108/hemostatic-effect-of-intrauterine-balloon-for-postpartum-hemorrhage-with-special-reference-to-concomitant-use-of-holding-the-cervix-procedure-matsubara
#6
Manabu Ogoyama, Hironori Takahashi, Rie Usui, Yosuke Baba, Hirotada Suzuki, Akihide Ohkuchi, Shigeki Matsubara
OBJECTIVE: The intrauterine balloon (Balloon) has recently been widely used to achieve hemostasis for postpartum hemorrhage (PPH). We concomitantly used a novel method, "holding the cervix", with the Balloon to prevent Balloon prolapse and achieve hemostasis. We aimed to clarify the following three factors: 1) hemostatic success rate of Balloon use for PPH, 2) effect of holding the cervix on Balloon prolapse, and, 3) the rate of bleeding after Balloon insertion, possibly predictive of Balloon failure...
January 9, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28081568/non-lethal-endotoxin-injection-a-rat-model-of-hypercoagulability
#7
Marjory B Brooks, James R Turk, Abraham Guerrero, Padma K Narayanan, John P Nolan, Elizabeth G Besteman, Dennis W Wilson, Roberta A Thomas, Cindy E Fishman, Karol L Thompson, Heidrun Ellinger-Ziegelbauer, Jennifer B Pierson, April Paulman, Alan Y Chiang, Albert E Schultze
Systemic inflammation co-activates coagulation, which unchecked culminates in a lethal syndrome of multi-organ microvascular thrombosis known as disseminated intravascular coagulation (DIC). We studied an endotoxin-induced inflammatory state in rats to identify biomarkers of hemostatic imbalance favoring hypercoagulability. Intraperitoneal injection of LPS at 15 mg/kg body weight resulted in peripheral leukopenia and widespread neutrophilic sequestration characteristic of an acute systemic inflammatory response...
2017: PloS One
https://www.readbyqxmd.com/read/28079976/maresin-1-induces-a-novel-pro-resolving-phenotype-in-human-platelets
#8
Katie L Lannan, Sherry L Spinelli, Neil Blumberg, Richard P Phipps
BACKGROUND: Antiplatelet therapy is a cornerstone of modern medical practice and is routinely employed to reduce the likelihood of myocardial infarction, thrombosis, and stroke. However, current antiplatelet therapies, such as aspirin, often have adverse side effects, including increased risk of bleeding, and some patients are relatively "aspirin-resistant". Platelets are intimately involved in hemostasis and inflammation, and clinical consequences are associated with excessive or insufficient platelet activation...
January 12, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28077050/a-novel-human-like-collagen-hemostatic-sponge-with-uniform-morphology-good-biodegradability-and-biocompatibility
#9
Xijuan Jiang, Ya Wang, Daidi Fan, Chenhui Zhu, Lin Liu, Zhiguang Duan
Biodegradable sponges, as a promising hemostatic biomaterial, has been clinically required over the past decades. Current hemostatic sponges are generally prepared by crosslinking and freeze-drying, but the quality control or biocompatibility is often unsatisfactory due to the freezing-caused morphological non-uniformity and the toxicity of raw materials or cross-linkers. The crosslinking often greatly retards the degradation of the sponges and thus affects the healing of the wound. In this work, we prepared a novel hemostatic sponge using human-like collagen and glutamine transaminase (non-toxic cross-linker) and optimized its morphology via "two-step" freezing instead of conventional "one-step" freezing...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28068607/micro-electromechanical-film-bulk-acoustic-sensor-for-plasma-and-whole-blood-coagulation-monitoring
#10
Da Chen, Shuren Song, Jilong Ma, Zhen Zhang, Peng Wang, Weihui Liu, Qiuquan Guo
Monitoring blood coagulation is an important issue in the surgeries and the treatment of cardiovascular diseases. In this work, we reported a novel strategy for the blood coagulation monitoring based on a micro-electromechanical film bulk acoustic resonator. The resonator was excited by a lateral electric field and operated under the shear mode with a frequency of 1.9GHz. According to the apparent step-ladder curves of the frequency response to the change of blood viscoelasticity, the coagulation time (prothrombin time) and the coagulation kinetics were measured with the sample consumption of only 1μl...
December 30, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28068274/dental-care-in-patients-with-antiphospholipid-syndrome-two-case-reports
#11
Karine Cestaro Mesquita, Carolina Rodrigues Teófilo, João Paulo Veloso Perdigão, Fabrício Bitu Sousa, Ana Paula Negreiros Nunes Alves, Wagner Araújo de Negreiros, Mário Rogério Lima Mota
Antiphospholipid syndrome (APS) is a prothrombotic autoimmune disease that may be classified as primary or secondary. Treatment consists of oral anticoagulant, antiplatelet, and/or immunosuppressant drugs. This report describes the dental treatment of 2 women with APS and multiple dental concerns, including periodontal disease, caries, and missing teeth. The invasive dental procedures were performed in an outpatient setting with hematologic monitoring and use of local hemostatic measures. Neither interruption of anticoagulant medications nor administration of blood products was necessary...
January 2017: General Dentistry
https://www.readbyqxmd.com/read/28062865/-poor-outcome-factors-associated-to-patients-with-lower-digestive-bleeding-in-a-public-hospital
#12
Jorge Luis Rojas-Domínguez, Alvaro Carvallo-Michelena, Alejandro Piscoya, Edson Guzmán
BACKGROUND: Lower gastrointestinal bleeding (LGIB) is an event that has shown an increase in complications and mortality rates in the last decades. Although some factors associated with poor outcome have been identified, there are several yet to be evaluated. OBJECTIVE: To identify risk factors for poor outcome in patients with LGIB in the Hospital Edgardo Rebagliati Martins of Lima, Peru. MATERIAL AND METHODS: A prospective analytic observational cohort study was made, and a census was conducted with all patients with acute LGIB between January 2010 and December 2013...
October 2016: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28061787/plasma-markers-of-inflammation-and-hemostatic-and-endothelial-activity-in-naturally-overweight-and-obese-dogs
#13
R Barić Rafaj, J Kuleš, A Marinculić, A Tvarijonaviciute, J Ceron, Ž Mihaljević, A Tumpa, V Mrljak
BACKGROUND: Obesity is one of the most prevalent health problems in the canine population. While haemostatic parameters and markers of endothelial function have been evaluated in various disease conditions in dogs, there are no studies of these markers in canine obesity. This study was designed to evaluate the effect of naturally gained weight excess and obesity on inflammatory, hemostatic and endothelial biomarkers in dogs. A total of 37 overweight and obese dogs were compared with 28 normal weight dogs...
January 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28060292/a-portal-vein-injection-model-to-study-liver-metastasis-of-breast-cancer
#14
Erica T Goddard, Jacob Fischer, Pepper Schedin
Breast cancer is the leading cause of cancer-related mortality in women worldwide. Liver metastasis is involved in upwards of 30% of cases with breast cancer metastasis, and results in poor outcomes with median survival rates of only 4.8 - 15 months. Current rodent models of breast cancer metastasis, including primary tumor cell xenograft and spontaneous tumor models, rarely metastasize to the liver. Intracardiac and intrasplenic injection models do result in liver metastases, however these models can be confounded by concomitant secondary-site metastasis, or by compromised immunity due to removal of the spleen to avoid tumor growth at the injection site...
December 26, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28057488/exploring-hemostatic-and-thrombolytic-potential-of-heynein-a-cysteine-protease-from-ervatamia-heyneana-latex
#15
Priyanka Uday, M Maheshwari, P Sharanappa, Zohara Nafeesa, Vivek Hamse Kameshwar, B S Priya, S Nanjunda Swamy
ETHNOPHARMACOLOGIAL RELEVANCE: The latex of Ervatamia heyneana (Wall.) T. Cooke plant has been used for wound healing and various skin diseases by Indian tribes and folklore. AIM OF THE STUDY: To validate the scientific basis of heynein - a key protease of Ervatamia heyneana, in hemostasis and wound healing process. MATERIALS AND METHODS: The latex from E. heyneana was processed and subjected to two step purification. The purified heynein was assayed for proteolytic activity using casein as substrate and also attested by zymography...
January 2, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28056285/-recurrent-bleeding-following-the-renal-artery-embolization-treating-post-percutaneous-nephrolithotomy-hemorrhage-causes-and-countermeasure
#16
Y M Ren, X M Wu, Y Wen, Q Lai, W Z Chen, Y X Qian, R G Liang
Objective: To explore the causes and countermeasure in recurrent bleeding following the selective renal artery embolization treating post-percutaneous nephrolithotomy hemorrhage. Methods: A total of 334 patients of severe renal hemorrhage associated with percutaneous nephrolithotomy (PCNL) from March 2011 to April 2015 were analyzed retrospectively.All the patients underwent super selective angiography and renal artery embolization.The causes of recurrent hemorrhage were analyzed and principles for diagnosis and embolization were studied...
January 3, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28049890/nurturing-pharmacists-who-contribute-to-clinical-practice-through-galenical-pharmaceutical-studies
#17
Masato Shigeyama, Maho Taguchi, Hiromitsu Yamamoto
 In clinical environments, difficulty in the uniform preparation of Mohs paste has been noted, due to variations in its physical properties, and despite preparations being based on the same prescriptions. Therefore, studies have been conducted to clarify the physicochemical phenomena influencing such variations, and then to develop a prescription design that will improve the usability of this product through the use of additives with sufficient safety, thereby addressing the above-mentioned demerit. An improved form of Mohs paste, not containing the starch that is responsible for the variations in physical properties, was developed in consideration of appropriate bases, and its pharmacological mechanisms were examined, with a focus on its hemostatic effects...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28045742/management-of-anticoagulation-with-rivaroxaban-in-trauma-and-acute-care-surgery-complications-and-reversal-strategies-as-compared-to-warfarin-therapy
#18
Sara P Myers, Esmaeel R Dadashzadeh, Jessica Cheung, Louis Alarcon, Matthew Kutcher, Joshua B Brown, Matthew D Neal
BACKGROUND: Rivaroxaban has gained popularity as an anticoagulant (AC) for stroke prevention in nonvalvular atrial fibrillation (afib) and venous thromboembolism (VTE). Although adverse bleeding events are associated with all AC, lack of point of care testing to measure the effect of rivaroxaban in emergent situations has contributed to perceived increased risk amongst physicians. METHODS: To describe a single center experience with trauma and emergency general surgery (EGS) patients taking rivaroxaban and evaluate outcomes compared with patients taking warfarin using a propensity score analysis...
December 31, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28042720/resection-of-uncovertebral-joints-and-posterior-longitudinal-ligament-for-cervical-disc-arthroplasty
#19
Tsung-Hsi Tu, Chih-Chang Chang, Jau-Ching Wu, Li-Yu Fay, Wen-Cheng Huang, Henrich Cheng
The most commonly accepted indications for cervical disc arthroplasty (CDA) are 1- and 2-level cervical disc herniation or spondylosis causing radiculopathy or myelopathy that is refractory to medical management. Unlike anterior cervical discectomy and fusion (ACDF), which eliminates motion, CDA aims to restore the physiological range of motion of the indexed joint. Thus, the effect of indirect decompression gained by the insertion of a sufficiently large interbody graft and incorporation into arthrodesis after ACDF cannot be duplicated for CDA...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28039639/a-novel-procedure-for-introducing-large-sheet-type-surgical-material-with-a-self-expanding-origami-structure-using-a-slim-trocar-chevron-pleats-procedure
#20
Yuen Nakase, Kei Nakamura, Akira Sougawa, Tomoyuki Nagata, Satoshi Mochizuki, Shouzo Kitai, Seishirou Inaba
BACKGROUND: Large sheet-type surgical materials (e.g., absorbable hemostat, adhesion barrier membranes, and flat surgical mesh) are difficult to introduce into a corporeal cavity using a 5-mm trocar; however, laparoscopic surgeries that use mainly 5-mm trocars are increasing. Furthermore, it is necessary not only to introduce but also to secure the applied surgical material and expand it from the original surgical site. To address these challenges, we developed a novel procedure for introducing such surgical materials into a corporeal cavity using a 5-mm trocar and a self-expanding origami structure, called the "chevron pleats procedure (CPP)"...
December 30, 2016: Surgical Endoscopy
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