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https://www.readbyqxmd.com/read/29725882/a-rare-case-of-a-spontaneously-ruptured-secondary-hepatic-malignant-lymphoma
#1
Ko Oshita, Toshiyuki Itamoto, Akihiko Oshita, Hideki Nakahara, Takashi Nishisaka
BACKGROUND: Although secondary liver involvement of the lymphoma is common and occurs in 50% of patients with non-Hodgkin's lymphoma, liver tumor rupture in malignant lymphoma is extremely rare. We report a case of a spontaneously ruptured secondary liver involvement of non-Hodgkin's lymphoma that was successfully treated with transcatheter arterial embolization (TAE) to obtain hemostasis, and subsequent hepatectomy and systemic chemotherapy. To the best of our knowledge, this is only the second reported case of a ruptured hepatic lymphoma...
May 3, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29707296/sevoflurane-did-not-show-better-protective-effect-on-endothelial-glycocalyx-layer-compared-to-propofol-during-lung-resection-surgery-with-one-lung-ventilation
#2
Hye-Jin Kim, Eunsoo Kim, Seung-Hoon Baek, Hee Young Kim, Joo-Yun Kim, Juyeon Park, Eun-Ji Choi
Background: The endothelial glycocalyx layer (EGL) coats the alveolar capillary endothelium and plays important roles in pulmonary vascular protection, modulation, and hemostasis. Ischemia-reperfusion, which occurs during lung resection surgery with one lung ventilation (OLV), can damage the EGL. Sevoflurane is known for its protective effect against ischemia-reperfusion injury. Therefore, we hypothesized that lung resection surgery produces EGL damage and sevoflurane protects the EGL better than the intravenous anesthetic propofol...
March 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29679324/controlling-fibrin-network-morphology-polymerization-and-degradation-dynamics-in-fibrin-gels-for-promoting-tissue-repair
#3
Erin P Sproul, Riley T Hannan, Ashley C Brown
Fibrin is an integral part of the clotting cascade and is formed by polymerization of the soluble plasma protein fibrinogen. Following stimulation of the coagulation cascade, thrombin activates fibrinogen, which binds to adjacent fibrin(ogen) molecules resulting in the formation of an insoluble fibrin matrix. This fibrin network is the primary protein component in clots and subsequently provides a scaffold for infiltrating cells during tissue repair. Due to its role in hemostasis and tissue repair, fibrin has been used extensively as a tissue sealant...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29660869/dysregulation-of-major-functional-genes-in-frontal-cortex-by-maternal-exposure-to-carbon-black-nanoparticle-is-not-ameliorated-by-ascorbic-acid-pretreatment
#4
Atsuto Onoda, Ken Takeda, Masakazu Umezawa
Recent cohort studies have revealed that perinatal exposure to particulate air pollution, including carbon-based nanoparticles, increases the risk of brain disorders. Although developmental neurotoxicity is currently a major issue in the toxicology of nanoparticles, critical information for understanding the mechanisms underlying the developmental neurotoxicity of airway exposure to carbon black nanoparticle (CB-NP) is still lacking. In order to investigate these mechanisms, we comprehensively analyzed fluctuations in the gene expression profile of the frontal cortex of offspring mice exposed maternally to CB-NP, using microarray analysis combined with Gene Ontology information...
April 11, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29630007/optimizing-blood-transfusion-practices-through-bundled-intervention-implementation-in-patients-with-gynecologic-cancer-undergoing-laparotomy
#5
Sumer K Wallace, Jessica W Halverson, Christopher J Jankowski, Stephanie R DeJong, Amy L Weaver, Megan R Weinhold, Bijan J Borah, James P Moriarty, William A Cliby, Daryl J Kor, Andrew A Higgins, Hilary A Otto, Sean C Dowdy, Jamie N Bakkum-Gamez
OBJECTIVE: To examine blood transfusion practices and develop a standardized bundle of interventions to address the high rate of perioperative red blood cell transfusion among patients with ovarian and endometrial cancer. METHODS: This was a retrospective cohort study. Our primary aim was to determine whether an implemented bundled intervention was associated with a reduction in perioperative red blood cell transfusions among cases of laparotomy for cancer. Secondary aims included comparing perioperative demographic, surgical, complication, and cost data...
May 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29619757/platelet-membrane-based-and-tumor-associated-platelet-targeted-drug-delivery-systems-for-cancer-therapy
#6
REVIEW
Yinlong Zhang, Guangna Liu, Jingyan Wei, Guangjun Nie
Platelets have long been known to play critical roles in hemostasis by clumping and clotting blood vessel injuries. Recent experimental evidence strongly indicates that platelets can also interact with tumor cells by direct binding or secreting cytokines. For example, platelets have been shown to protect circulating cancer cells in blood circulation and to promote tumor metastasis. In-depth understanding of the role of platelets in cancer progression and metastasis provides promising approaches for platelet biomimetic drug delivery systems and functional platelet-targeting strategies for effective cancer treatment...
April 4, 2018: Frontiers of Medicine
https://www.readbyqxmd.com/read/29619369/cell-receptor-and-cofactor-interactions-of-the-contact-activation-system-and-factor-xi
#7
REVIEW
Monika Pathak, Bubacarr Gibril Kaira, Alexandre Slater, Jonas Emsley
The contact activation system (CAS) or contact pathway is central to the crosstalk between coagulation and inflammation and contributes to diverse disorders affecting the cardiovascular system. CAS initiation contributes to thrombosis but is not required for hemostasis and can trigger plasma coagulation via the intrinsic pathway [through factor XI (FXI)] and inflammation via bradykinin release. Activation of factor XII (FXII) is the principal starting point for the cascade of proteolytic cleavages involving FXI, prekallikrein (PK), and cofactor high molecular weight kininogen (HK) but the precise location and cell receptor interactions controlling these reactions remains unclear...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29590102/common-%C3%AE-globin-variants-modify-hematologic-and-other-clinical-phenotypes-in-sickle-cell-trait-and-disease
#8
Laura M Raffield, Jacob C Ulirsch, Rakhi P Naik, Samuel Lessard, Robert E Handsaker, Deepti Jain, Hyun M Kang, Nathan Pankratz, Paul L Auer, Erik L Bao, Joshua D Smith, Leslie A Lange, Ethan M Lange, Yun Li, Timothy A Thornton, Bessie A Young, Goncalo R Abecasis, Cathy C Laurie, Deborah A Nickerson, Steven A McCarroll, Adolfo Correa, James G Wilson, Guillaume Lettre, Vijay G Sankaran, Alex P Reiner
Co-inheritance of α-thalassemia has a significant protective effect on the severity of complications of sickle cell disease (SCD), including stroke. However, little information exists on the association and interactions for the common African ancestral α-thalassemia mutation (-α3.7 deletion) and β-globin traits (HbS trait [SCT] and HbC trait) on important clinical phenotypes such as red blood cell parameters, anemia, and chronic kidney disease (CKD). In a community-based cohort of 2,916 African Americans from the Jackson Heart Study, we confirmed the expected associations between SCT, HbC trait, and the -α3...
March 28, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29560825/uncovering-the-regeneration-strategies-of-zebrafish-organs-a-comprehensive-systems-biology-study-on-heart-cerebellum-fin-and-retina-regeneration
#9
Fang-Yu Liu, Te-Cheng Hsu, Patrick Choong, Min-Hsuan Lin, Yung-Jen Chuang, Bor-Sen Chen, Che Lin
BACKGROUND: Regeneration is an important biological process for the restoration of organ mass, structure, and function after damage, and involves complex bio-physiological mechanisms including cell differentiation and immune responses. We constructed four regenerative protein-protein interaction (PPI) networks using dynamic models and AIC (Akaike's Information Criterion), based on time-course microarray data from the regeneration of four zebrafish organs: heart, cerebellum, fin, and retina...
March 19, 2018: BMC Systems Biology
https://www.readbyqxmd.com/read/29553813/amicus-or-adversary-revisited-platelets-in-acute-lung-injury-acute-respiratory-distress-syndrome
#10
Elizabeth A Middleton, Matthew T Rondina, Hansjorg Schwertz, Guy A Zimmerman
Platelets are essential cellular effectors of hemostasis and contribute to disease as circulating effectors of pathologic thrombosis. These are their most widely known biologic activities. Nevertheless, recent observations demonstrate that platelets have a much more intricate repertoire beyond these traditional functions, and are specialized for contributions to vascular barrier integrity, organ repair, antimicrobial host defense, inflammation, and activities across the immune continuum. Paradoxically, some of these newly-discovered activities of platelets appear to contribute to tissue injury based on clinical investigations and animal models of disease...
March 19, 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29550179/modeling-thrombosis-in-silico-frontiers-challenges-unresolved-problems-and-milestones
#11
REVIEW
A V Belyaev, J L Dunster, J M Gibbins, M A Panteleev, V Volpert
Hemostasis is a complex physiological mechanism that functions to maintain vascular integrity under any conditions. Its primary components are blood platelets and a coagulation network that interact to form the hemostatic plug, a combination of cell aggregate and gelatinous fibrin clot that stops bleeding upon vascular injury. Disorders of hemostasis result in bleeding or thrombosis, and are the major immediate cause of mortality and morbidity in the world. Regulation of hemostasis and thrombosis is immensely complex, as it depends on blood cell adhesion and mechanics, hydrodynamics and mass transport of various species, huge signal transduction networks in platelets, as well as spatiotemporal regulation of the blood coagulation network...
March 5, 2018: Physics of Life Reviews
https://www.readbyqxmd.com/read/29541637/establishment-of-the-world-health-organization-first-international-standard-for-factor-xii-plasma-human
#12
Helen V Wilmot, Jason Hockley, Peter Rigsby, Elaine Gray
Until recently, the role of factor XII (FXII) in hemostasis was not considered to be important since patients with FXII deficiency do not present with bleeding. The activation of FXII by agents including mast cells and platelet polyphosphates suggests that it may have a role in thrombogenesis. The inhibition of FXII therefore presents an option for antithrombotic therapy, and antibodies and inhibitors are already in development. Assays for FXII will be required to support these technologies, and an international standard (IS) for FXII would be useful for the development of these methods and for the clinical monitoring of patients...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29514614/novel-hemostatic-biomolecules-based-on-elastin-like-polypeptides-and-the-self-assembling-peptide-rada-16
#13
Shasha Yang, Sili Wei, Yun Mao, Hanxue Zheng, Juantao Feng, Jihong Cui, Xin Xie, Fulin Chen, Honmgmin Li
BACKGROUND: Safe and effective hemostatic materials are important for reducing mortality resulting from excessive hemorrhage. In this work, new biomaterials with hemostatic effects were created by fusing the gene coding for RADA-16, a self-assembling peptide with the sequence RADARADARADARADA, to the 3'-end of the open reading frame (ORF) encoding elastin-like polypeptides through gene recombination. RESULTS: The fusion proteins, termed 36R, 60R and 96R, were solubly over-expressed in Escherichia coli BL21 (DE3) based on genetic manipulation of the high-efficiency prokaryotic expression vector pET28a (+) and bacterial transformation...
March 7, 2018: BMC Biotechnology
https://www.readbyqxmd.com/read/29443045/routine-screening-method-for-microparticles-in-platelet-transfusions
#14
Daniel Millar, Larry Murphy, Audrey Labrie, Elisabeth Maurer-Spurej
Platelet inventory management based on screening microparticle content in platelet concentrates is a new quality improvement initiative for hospital blood banks. Cells fragment off microparticles (MP) when they are stressed. Blood and blood components may contain cellular fragments from a variety of cells, most notably from activated platelets. When performing their roles as innate immune cells and major players in coagulation and hemostasis, platelets change shape and generate microparticles. With dynamic light scattering (DLS)-based microparticle detection, it is possible to differentiate activated (high microparticle) from non-activated (low microparticle) platelets in transfusions, and optimize the use of this scarce blood product...
January 31, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29354896/-10-year-series-studies-of-chronic-radiation-proctopathy-from-the-sixth-affiliated-hospital-of-sun-yat-sen-university
#15
Lei Wang, Tenghui Ma, Jianping Wang
Chronic radiation proctopathy (CRP) is the delayed adverse effect after radiotherapy for pelvic malignancies. It is characterized as progressive fibrosis in pathology. The symptoms are usually unspecific which include rectal bleeding, perianal pain, tenesmus, stool frequencies and so on. The course of CRP can present from months to years after radiation. Severe complications can occur in the late stage and will greatly affect the quality of life. Currently, there is no standard guides for diagnosis and treatment of CRP...
January 25, 2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29352936/freeze-dried-chitosan-acetate-dressings-with-glycosaminoglycans-and-traxenamic-acid
#16
Francesca Saporito, Giuseppina Sandri, Silvia Rossi, Maria Cristina Bonferoni, Federica Riva, Lorenzo Malavasi, Carla Caramella, Franca Ferrari
Bleeding control plays an important role to increase survival in the early phase after a traumatic event. The aim of present work was the development of hemostatic sponge-like dressings based on chitosan, in association with glycosaminoglycans (GAG) (chondroitin sulfate or hyaluronic acid) and the improvement of their hemostatic performance by loading tranexamic acid (TA). The dressings were prepared by lyophilizazion and were characterized for mechanical, hydration, bioadhesion properties and morphology. Moreover, FTIR analysis was performed to understand the interactions between the different polyelectrolytes present in the dressings...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29332421/comparison-of-two-weight-based-desmopressin-dosing-strategies-for-spontaneous-bleeding
#17
Miguel J Franquiz, Michelle C Hines, Siu Yan Amy Yeung
BACKGROUND: The pharmacokinetics and pharmacodynamics of desmopressin are appropriate for adjusted body weight-based dosing, particularly in obese patients. OBJECTIVE: The objective of this study was to describe desmopressin dosing strategies, with emphasis on hemostatic outcomes among patients without preexisting bleeding disorders. METHODS: This was a single-center, retrospective cohort study of patients who received intravenous weight-based desmopressin for a hemostatic indication...
January 1, 2018: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29249197/evaluation-of-the-hemocompatibility-of-rada-16-i-peptide
#18
Laleh Taghavi, Asieh Aramvash, Mansooreh Sadat Seyedkarimi, Narges Malek Sabet
RADA 16-I is an ionic self-assembling peptide that can form macroscopic scaffolds through β-sheet structures which are used in favor of cell growth and tissue engineering. This peptide has also the ability to stop bleeding effectively and quickly (∼20 seconds) when applied directly to the injuries. This study is focused on coagulation process, platelet aggregation, C3 and C4 concentrations, CBC counting, hemolysis, and white blood cell morphology tests to analyze hemocompatibility of RADA 16-I at different concentrations - 0...
March 2018: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/29247766/fibrin-based-delivery-strategies-for-acute-and-chronic-wound-healing
#19
P Heher, S Mühleder, R Mittermayr, H Redl, P Slezak
Fibrin, a natural hydrogel, is the end product of the physiological blood coagulation cascade and naturally involved in wound healing. Beyond its role in hemostasis, it acts as a local reservoir for growth factors and as a provisional matrix for invading cells that drive the regenerative process. Its unique intrinsic features do not only promote wound healing directly via modulation of cell behavior but it can also be fine-tuned to evolve into a delivery system for sustained release of therapeutic biomolecules, cells and gene vectors...
December 13, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29194002/auranofin-a-thioredoxin-reductase-inhibitor-causes-platelet-death-through-calcium-overload
#20
Matthew T Harper
Platelets are central to normal hemostasis and must be tightly controlled to prevent thrombosis. However, drug treatments that also affect platelets could lead to unwanted side effects on hemostasis or thrombosis. In this study, the effect of auranofin on platelets was tested. Auranofin, a gold-based thioredoxin reductase (TRXR) inhibitor, has been previously used in arthritis. Recently, auranofin and other inhibitors of the thioredoxin system have been proposed as novel anti-cancer therapies. TRXR is an important part of the antioxidant defenses in many cells that maintain intracellular proteins in their reduced state...
December 1, 2017: Platelets
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