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https://www.readbyqxmd.com/read/28944903/gpvi%C3%A2-fc%C3%A2-peg-improves-cerebral-infarct-volume-and-cerebral-thrombosis-in-mouse-model-with-cerebral-thrombosis
#1
Yimae Wufuer, Xuefeng Shan, Magaoweiya Sailike, Kamile Adilaimu, Songfeng Ma, Huguo Wang
Cerebral thrombosis is one of the most common causes of cerebral infarction, and anticoagulation therapy is a routine treatment in patients with hemorrhagic cerebral venous thrombosis. The hemostatic function of platelets is important for the anticoagulation therapy of thrombosis. Glycoprotein VI (GPVI) is reported as the major signaling receptor for collagen and is exclusively expressed on platelets and megakaryocytes, initiating platelet recruitment at sites of vascular injury and demonstrating numerous beneficial effects for patients with cerebral thrombosis...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944838/effect-of-antioxidant-of-bamboo-leaves-on-gene-expression-associated-with-mouse-embryonic-fibroblast-reproduction-and-embryonic-development
#2
Feng Yu, Xiaowei Qian, Zhanghui Zeng, Xiaoli Zhao, Rong Hou, Zhihe Zhang, Hongwu Bian, Ning Han, Junhui Wang, Muyuan Zhu
Antioxidant of bamboo leaves (AOB) was certified to be a natural antioxidant by the Chinese Ministry of Health in 2003. However, the effects of AOB on animal reproductive and developmental functions remain unclear. The present study aimed to investigate the effects of different concentrations of AOB on mouse embryonic fibroblast (MEF) cells, and to examine the underlying molecular mechanism through which AOB affects the proliferation and apoptosis of MEFs. MEFs prepared from individual embryos were treated with various dosages of AOB...
September 18, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944135/management-of-syndromic-diarrhea-tricho-hepato-enteric-syndrome-a-review-of-the-literature
#3
REVIEW
Alexandre Fabre, Patrice Bourgeois, Marie-Edith Coste, Céline Roman, Vincent Barlogis, Catherine Badens
Syndromic diarrhea/tricho-hepato-enteric syndrome (SD/THE) is a rare disease linked to the loss of function of either TTC37 or SKIV2L, two components of the SKI complex. It is characterized by a combination of 9 signs (intractable diarrhea, hair abnormalities, facial dysmorphism, immune abnormalities, IUGR/SGA, liver abnormalities, skin abnormalities, congenital heart defect and platelet abnormalities). We present a comprehensive review of the management of SD/THE and tested therapeutic regimens. A review of the literature was conducted in May 2017: 29 articles and 2 abstracts were included describing a total of 80 patients, of which 40 presented with mutations of TTC37, 14 of SKIV2L...
August 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/28943206/kaolinite-in-pharmaceutics-and-biomedicine
#4
REVIEW
Mahmoud E Awad, Alberto López-Galindo, Massimo Setti, Mahmoud M El-Rahmany, César Viseras Iborra
Kaolinite Al2Si2O5(OH)4 is an abundant and inexpensive geomaterial regarded as one of the most common clay minerals in the earth's crust and the most widespread phase among the other kaolin polymorphs (halloysite, dickite and nacrite). Structurally, it is a hydrous aluminum phyllosilicate member belonging to the dioctahedral 1:1 kaolin mineral group. The particle size of the pseudohexagonal kaolinite platelets is normally <2μm (if compared to a human red blood cell of a typical diameter 6.2-8.2μm or to a virus particle of about 50nm diameter)...
September 21, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28943134/usefulness-of-99m-tc-dtpa-galactosyl-human-serum-albumin-liver-scintigraphy-for-evaluating-hepatic-functional-reserve-after-kasai-procedure
#5
Tetsuya Mitsunaga, Yasuyuki Higashimoto, Takeshi Saito, Jun Iwai
BACKGROUND/PURPOSE: We investigated whether (99m)Tc-DTPA galactosyl human serum albumin (GSA) liver scintigraphy could help evaluate post-Kasai procedure hepatic functional reserve in order to inform therapeutic strategies, including liver transplantation. METHODS: GSA scintigraphy was performed post-Kasai procedure. Patients were classified as having favorable (native liver survival) or poor (liver transplantation or death) prognoses. The clearance index (HH15), receptor index (LHL15), and time at which cumulative liver radioactivity reached 85% of heart plus liver activity (T0...
September 5, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28943099/a-systematic-review-of-the-effects-of-platelet-rich-plasma-on-outcomes-for-patients-with-knee-osteoarthritis-and-following-total-knee-arthroplasty
#6
REVIEW
Tendai Aswad Muchedzi, Simon B Roberts
INTRODUCTION: Platelet rich plasma (PRP) has been suggested to be effective in the management of knee osteoarthritis. Review of current literature reveals conflicting evidence regarding the benefits of PRP in treating knee OA. Preclinical evidence supports the use of PRP injections to promote a favorable environment for joint tissue healing, targeting not only cartilage but also synovial and meniscal tissues which has a positive effect on delaying the progression of OA. Growth factors found in platelet granules are postulated to influence outcomes in knee OA and after total knee arthroplasty (TKA)...
September 21, 2017: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/28942157/control-of-cell-adhesion-and-proliferation-utilizing-polysaccharide-composite-film-scaffolds
#7
Kazutoshi Iijima, Yuna Tsuji, Izumi Kuriki, Atsushi Kakimoto, Yuichi Nikaido, Rie Ninomiya, Takuya Iyoda, Fumio Fukai, Mineo Hashizume
We have developed polysaccharide composite films made of anionic polysaccharides and chitosan (CHI) by utilizing hot press techniques. In order to demonstrate the versatility of these films as cell scaffolds, the present study investigated the adhesion and proliferation of fibroblasts on composite films prepared by using various kinds of anionic polysaccharides and that were modified with proteins. Cells were spread on heparin/CHI and alginic acid/CHI films and grew well, whereas those on chondroitin sulfate C (CS)/CHI and hyaluronic acid/CHI films were round in shape...
September 14, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28941240/dynamic-changes-in-brain-mesenchymal-perivascular-cells-associate-with-multiple-sclerosis-disease-duration-active-inflammation-and-demyelination
#8
Ellen Iacobaeus, Rachael V Sugars, Anton Törnqvist Andrén, Jessica J Alm, Hong Qian, Janek Frantzen, Jia Newcombe, Kanar Alkass, Henrik Druid, Matteo Bottai, Matias Röyttä, Katarina Le Blanc
Vascular changes, including blood brain barrier destabilization, are common pathological features in multiple sclerosis (MS) lesions. Blood vessels within adult organs are reported to harbor mesenchymal stromal cells (MSCs) with phenotypical and functional characteristics similar to pericytes. We performed an immunohistochemical study of MSCs/pericytes in brain tissue from MS and healthy persons. Post-mortem brain tissue from patients with early progressive MS (EPMS), late stage progressive MS (LPMS), and healthy persons were analyzed for the MSC and pericyte markers CD146, platelet-derived growth factor receptor beta (PDGFRβ), CD73, CD271, alpha-smooth muscle actin, and Ki67...
September 23, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28940587/liver-dysfunction-in-chronic-lymphocytic-leukemia-prevalence-outcomes-and-pathological-findings
#9
Paul J Hampel, Kari G Chaffee, Rebecca L King, Douglas Simonetto, Melissa C Larson, Sara Achenbach, Timothy G Call, Wei Ding, Saad S Kenderian, Jose F Leis, Asher A Chanan-Khan, Deborah A Bowen, Michael J Conte, Susan M Schwager, Curtis A Hanson, Susan L Slager, Neil E Kay, Tait D Shanafelt, Sameer A Parikh
The prevalence of liver dysfunction and its association with outcomes in patients with previously untreated chronic lymphocytic leukemia (CLL) is unknown. Newly diagnosed (<12 months) previously untreated CLL patients seen at Mayo Clinic, Rochester, MN between 9/1993 and 4/2016 who had baseline assessment of at least one liver function test (LFT) were included in this analysis. The prevalence of liver dysfunction at baseline, proportion of patients who acquired LFT abnormalities, time to first therapy (TTFT) and overall survival (OS) were assessed...
September 22, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28940408/protective-repairing-and-fibrinolytic-effects-of-rivaroxaban-on-vascular-endothelium
#10
Ezequiel Alvarez, Beatriz Paradela-Dobarro, Sergio Raposeiras-Roubín, José Ramón González-Juanatey
AIM: Rivaroxaban, a direct inhibitor of activated factor X (FXa), is the only new oral anticoagulant approved for secondary prevention after acute coronary syndrome. Our objective was to identify the possible molecular mechanisms of rivaroxaban that contributes to endothelial function. METHODS: Cell viability and growth of human umbilical vein endothelial cells (HUVEC) were registered. Gene expression studies comparing the effects of rivaroxaban and FXa were conducted by a selective RNA array and confirmed by protein quantification...
September 23, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28940313/n-glycolylneuraminic-acid-knockout-reduces-erythrocyte-sequestration-and-thromboxane-elaboration-in-an-ex-vivo-pig-to-human-xenoperfusion-model
#11
Arielle Cimeno, Wessam Hassanein, Beth M French, Jessica M Powell, Lars Burdorf, Olga Goloubeva, Xiangfei Cheng, Dawn M Parsell, Jagdeece Ramsoondar, Kasinath Kuravi, Todd Vaught, Mehmet C Uluer, Emily Redding, Natalie O'Neill, Christopher Laird, Alena Hershfeld, Ivan Tatarov, Kathryn Thomas, David Ayares, Agnes M Azimzadeh, Richard N Pierson, Rolf N Barth, John C LaMattina
BACKGROUND: Wild-type pigs express several carbohydrate moieties on their cell surfaces that differ from those expressed by humans. This difference in profile leads to pig tissue cell recognition of human blood cells causing sequestration, in addition to antibody-mediated xenograft injury. One such carbohydrate is N-glycolylneuraminic acid (Neu5Gc), a sialic acid molecule synthesized in pigs but not in humans. Here, we evaluate livers with and without Neu5Gc in an ex vivo liver xeno perfusion model...
September 22, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28939911/cib1-protects-against-mptp-induced-neurotoxicity-through-inhibiting-ask1
#12
Kyoung Wan Yoon, Hyun-Suk Yang, Young Mok Kim, Yeonsil Kim, Seongman Kang, Woong Sun, Ulhas P Naik, Leslie V Parise, Eui-Ju Choi
Calcium and integrin binding protein 1 (CIB1) is a calcium-binding protein that was initially identified as a binding partner of platelet integrin αIIb. Although CIB1 has been shown to interact with multiple proteins, its biological function in the brain remains unclear. Here, we show that CIB1 negatively regulates degeneration of dopaminergic neurons in a mouse model of Parkinson's disease using 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Genetic deficiency of the CIB1 gene enhances MPTP-induced neurotoxicity in dopaminergic neurons in CIB1(-/-) mice...
September 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28939876/thrombopoietic-stimulating-activity-of-rhtyrrs-y341a
#13
Yu Jinchao, Zhang Yanling, Wang Xu, Zhao Bing, Ye Yuhao, Zhou Weiran, Sun Shaoyang, Ma Liyun, Shi Yun, Zhan Ling, Yu Min, Mo Wei
Tumor radiotherapy induces hematopoietic organ damage and reduces thrombocyte counts. Thrombocytopenia is a common disease. Some studies have shown that tRNA synthetase plays not only catalytic tRNA aminoacylation roles, but also functions similarly to cytokines. Recombinant human tyrosyl-tRNA synthetase with a mutated Y341A (rhTyrRS (Y341A)) promotes megakaryocyte migrate from bone marrow to peripheral blood. It would promote megakaryocytes in the lungs adhering to vascular endothelial cells and resulting in the platelet production...
September 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28939717/apolipoprotein-a-i-modulates-atherosclerosis-through-lymphatic-vessel-dependent-mechanisms-in-mice
#14
Andreea Milasan, Gabriel Jean, François Dallaire, Jean-Claude Tardif, Yahye Merhi, Mary Sorci-Thomas, Catherine Martel
BACKGROUND: Subcutaneously injected lipid-free apoA-I (apolipoprotein A-I) reduces accumulation of lipid and immune cells within the aortic root of hypercholesterolemic mice without increasing high-density lipoprotein-cholesterol concentrations. Lymphatic vessels are now recognized as prerequisite players in the modulation of cholesterol removal from the artery wall in experimental conditions of plaque regression, and particular attention has been brought to the role of the collecting lymphatic vessels in early atherosclerosis-related lymphatic dysfunction...
September 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28938956/effects-of-ticagrelor-versus-clopidogrel-on-platelet-function-in-fibrinolytic-treated-stemi-patients-undergoing-early-pci
#15
Payam Dehghani, Andrea Lavoie, Shahar Lavi, Jennifer J Crawford, Sebastian Harenberg, Rodney H Zimmermann, Jeff Booker, Sheila Kelly, Warren J Cantor, Shamir R Mehta, Akshay Bagai, Shaun G Goodman, Asim N Cheema
OBJECTIVES: Patients undergoing PCI early after fibrinolytic therapy are at high risk for both thrombotic and bleeding complications. We sought to assess the pharmacodynamic effects of ticagrelor versus clopidogrel in the fibrinolytic-treated STEMI patients undergoing early PCI. METHODS AND RESULTS: Patients undergoing PCI within 24 hours of tenecteplase (TNK), aspirin, and clopidogrel for STEMI were randomized to receive additional clopidogrel 300 mg followed by 75 mg daily or ticagrelor 180 mg followed by 90 mg twice daily...
October 2017: American Heart Journal
https://www.readbyqxmd.com/read/28938306/different-clinical-course-and-complications-in-interagency-registry-for-mechanically-assisted-circulatory-support-1-patients-managed-with-or-without-extracorporeal-membrane-oxygenation
#16
Jason J Han, Jennifer Chung, Carol W Chen, Ann C Gaffey, Alex Sotolongo, Christyna Justice, Alyse E Ameer, J Eduardo Rame, Christian Bermudez, Michael A Acker, Pavan Atluri
Extracorporeal membrane oxygenation (ECMO) as a bridge to left ventricular assist device (LVAD) implantation has shown promise in improving end-organ function and optimizing outcomes in some critically ill patients, but the practice remains controversial. Retrospective review of patients who received LVADs from May 2008 to September 2016 at a high-volume, tertiary care cardiovascular center was performed. Subjects were Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) class 1 patients divided into ECMO bridge and non-ECMO bridge cohorts...
September 21, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28938305/a-useful-device-to-measure-kinetics-of-platelet-contraction
#17
Mitchell J George, Kevin R Aroom, Max A Skibber, Tushar Sharma, Charles E Wade, Charles S Cox, Brijesh S Gill
Platelet contraction provides a minimally invasive source for physiologic information. In this article, we describe a device that directly measures the kinetics of platelet contraction. Whole blood is injected between acrylic plates and an adherent clot forms. The bottom plate is fixed, and the top plate is attached to a wire cantilever. Platelet contraction drives deflection of the wire cantilever which is captured by a camera. Force generated by the clot with time is derived using beam equations. Force derivations were verified using a microelectromechanical (MEMS) force sensor...
September 21, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28937536/enoxaparin-population-pharmacokinetics-in-the-first-year-of-life
#18
Brady S Moffett, Marianne Galati, Donald Mahoney, YoungNa Lee-Kim, Jun Teruya, Mona D Shah, Donald L Yee
Aims Enoxaparin dosing requirements in the first year of life can be highly variable. Characterization of pharmacokinetics in this patient population can assist in dosing. METHODS: Patients less than one year post-natal age who received enoxaparin and had an anti-factor Xa activity level drawn as inpatients were identified through the pharmacy database over a five-year period. Patients on renal replacement therapy or with hyperbilirubinemia were excluded. Data collection included demographic variables, indication for enoxaparin, enoxaparin doses, anti-factor Xa activity levels, serum creatinine, hemoglobin, hematocrit, platelet count, and urine output over the previous 24 hours...
September 19, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28931618/predicting-major-bleeding-in-ischemic-stroke-patients-with-atrial-fibrillation
#19
Nina A Hilkens, Ale Algra, Jacoba P Greving
BACKGROUND AND PURPOSE: Performance of risk scores for major bleeding in patients with atrial fibrillation and a previous transient ischemic attack or ischemic stroke is not well established. We aimed to validate risk scores for major bleeding in patients with atrial fibrillation treated with oral anticoagulants after cerebral ischemia and explore the net benefit of oral anticoagulants among bleeding risk categories. METHODS: We analyzed 3623 patients with a history of transient ischemic attack or stroke included in the RE-LY trial (Randomized Evaluation of Long-Term Anticoagulation Therapy)...
September 20, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28931526/cellubrevin-vesicle-associated-membrane-protein-3-vamp-3-mediated-endocytosis-and-trafficking-regulate-platelet-functions
#20
Meenakshi Banerjee, Smita Joshi, Jinchao Zhang, Carole L Moncman, Shilpi Yadav, Beth A Bouchard, Brian Storrie, Sidney W Whiteheart
Endocytosis is key to fibrinogen (Fg) uptake, trafficking of integrins (αIIbβ3, αvβ3) and purinergic receptors (P2Y1, P2Y12), and thus for normal platelet function. However, the molecular machinery required and possible trafficking routes are still ill-defined. To further identify elements of the platelet endocytic machinery, we examined the role of a vesicle-residing, Soluble N-ethylmaleimide Factor Attachment Protein Receptor (v-SNARE) called Cellubrevin/Vesicle-Associated Membrane Protein-3 (VAMP-3) in platelet function...
September 20, 2017: Blood
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