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https://www.readbyqxmd.com/read/29134526/mucociliary-transport-differential-white-blood-cells-and-cyto-genotoxicity-in-peripheral-erythrocytes-in-fish-from-a-polluted-urban-pond
#1
Edison Bezerra da Silva, Sandra Aparecida da Silva Corrêa, Denis Moledo de Souza Abessa, Bruno Ferreira Xavier da Silva, Dolores Helena Rodriguez Ferreira Rivero, Robson Seriani
The present study evaluated the water quality of a polluted pond through the analysis of in vitro mucociliary transport, hematological parameters, and biomarkers of cyto-genotoxicity in the Nile tilapia (Oreochromis niloticus). Blood and mucus samples were collected from ten specimens from the polluted pond and from ten specimens from a control area. The fish were anesthetized with 3% benzocaine, mucus was collected directly from the gills, and blood was drawn from the caudal artery. Blood smears were stained using the May-Grünwald Giemsa process for the differential leukocyte counts and to determine the frequency of leukocytes, thrombocytes, erythroblasts, micronuclei, and nuclear abnormalities...
November 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29127144/disruption-of-thrombocyte-and-t-lymphocyte-development-by-a-mutation-in-arpc1b
#2
Raz Somech, Atar Lev, Yu Nee Lee, Amos J Simon, Ortal Barel, Ginette Schiby, Camila Avivi, Iris Barshack, Michele Rhodes, Jiejing Yin, Minshi Wang, Yibin Yang, Jennifer Rhodes, Nufar Marcus, Ben-Zion Garty, Jerry Stein, Ninette Amariglio, Gideon Rechavi, David L Wiest, Yong Zhang
Regulation of the actin cytoskeleton is crucial for normal development and function of the immune system, as evidenced by the severe immune abnormalities exhibited by patients bearing inactivating mutations in the Wiskott-Aldrich syndrome protein (WASP), a key regulator of actin dynamics. WASP exerts its effects on actin dynamics through a multisubunit complex termed Arp2/3. Despite the critical role played by Arp2/3 as an effector of WASP-mediated control over actin polymerization, mutations in protein components of the Arp2/3 complex had not previously been identified as a cause of immunodeficiency...
November 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29125377/intraflagellar-transport-proteins-are-involved-in-thrombocyte-filopodia-formation-and-secretion
#3
Uvaraj Radhakrishnan, Abdullah Alsrhani, Hemalatha Sundaramoorthi, Gauri Khandekar, Meghana Kashyap, Jannon L Fuchs, Brian D Perkins, Yoshihiro Omori, Pudur Jagadeeswaran
Intraflagellar transport (IFT) proteins are vital for the genesis and maintenance of cilia. Our identification of ift122 transcripts in zebrafish thrombocytes that lack primary cilia was unexpected. IFT proteins serve transport in cilia, whose narrow dimensions may have necessitated the evolution of IFT from vesicular transport in ancestral eukaryotes. We hypothesized that IFTs might also facilitate transport within the filopodia that form when thrombocytes are activated. To test this possibility, we knocked down ift122 expression by injecting antisense Morpholino oligonucleotides (MOs) into zebrafish embryos...
November 10, 2017: Platelets
https://www.readbyqxmd.com/read/29099870/intravital-longitudinal-wide-area-imaging-of-dynamic-bone-marrow-engraftment-and-multilineage-differentiation-through-nuclear-cytoplasmic-labeling
#4
Soyeon Ahn, Kibaek Choe, Seunghun Lee, Kangsan Kim, Eunjoo Song, Howon Seo, Injune Kim, Pilhan Kim
Bone marrow is a vital tissue that produces the majority of erythrocytes, thrombocytes, and immune cells. Bone marrow transplantation (BMT) has been widely performed in patients with blood disorders and cancers. However, the cellular-level behaviors of the transplanted bone marrow cells over wide-areas of the host bone marrow after the BMT are not fully understood yet. In this work, we performed a longitudinal wide-area cellular-level observation of the calvarial bone marrow after the BMT in vivo. Using a H2B-GFP/β-actin-DsRed double-transgenic mouse model as a donor, a subcellular-level nuclear-cytoplasmic visualization of the transplanted bone marrow cells was achieved, which enabled a direct in vivo dynamic monitoring of the distribution and proliferation of the transplanted bone marrow cells...
2017: PloS One
https://www.readbyqxmd.com/read/29096842/safety-aspects-of-lipidapheresis-using-dali-and-monet-multicenter-observational-study
#5
Justyna Kozik-Jaromin, Eberhard Röseler, Franz Heigl, Ralf Spitthöver, Jens Ringel, Gerd Schmitz, Rainer Heinzler, Nadim Abdul-Rahman, Frank Leistikow, Frido Himmelsbach, Volker Schettler, Ingrid Uhlenbusch-Körwer, Wolfgang Ramlow
BACKGROUND: Lipidapheresis was introduced for intractable hyperlipidemia as a more selective therapy than plasma exchange aiming to enhance efficacy and limit side-effects. Although this therapy is regarded safe, multicenter data from routine application are limited. We investigated direct adsorption of lipoproteins (DALI) and lipofiltration (MONET) regarding the short and the long-term safety aspects. METHODS: This multicenter observational study prospectively evaluated 2154 DALI and 1297 MONET sessions of 122 patients during a period of 2 years...
November 2017: Atherosclerosis. Supplements
https://www.readbyqxmd.com/read/29088960/acute-subdural-hematoma-in-patients-on-oral-anticoagulant-therapy-management-and-outcome
#6
Sae-Yeon Won, Daniel Dubinski, Markus Bruder, Adriano Cattani, Volker Seifert, Juergen Konczalla
OBJECTIVE Isolated acute subdural hematoma (aSDH) is increasing in older populations and so is the use of oral anticoagulant therapy (OAT). The dramatic increase of OAT-with direct oral anticoagulants (DOACs) as well as with conventional anticoagulants-is leading to changes in the care of patients who present with aSDH while receiving OAT. The purpose of this study was to determine the management and outcome of patients being treated with OAT at the time of aSDH presentation. METHODS In this single-center, retrospective study, the authors analyzed 116 consecutive cases involving patients with aSDH treated from January 2007 to June 2016...
November 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/29071684/immunophenotypic-identification-of-early-myeloerythroid-development
#7
Cornelis J H Pronk, David Bryder
Myeloerythroid-restricted precursor cells, derived from multipotent hematopoietic stem cells, give rise to mature cells of the granulocyte, monocyte, erythroid, and/or thrombocytic lineages. High-resolution profiling of the developmental stages, from hematopoietic stem cells to mature progeny, is important to be able to study and understand the underlying mechanisms that guide various cell fate decisions. Also, this approach opens for greater insights into pathogenic events such as leukemia, diseases that are most often characterized by halted differentiation at defined immature precursor levels...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29064193/-paracentesis-and-cirrhotic-patients-should-we-fear-hemorrhages
#8
Marisa De Carvalho Fernandes, Emiliano Giostra, Martine Louis Simonet
Paracentesis is a frequent procedure, especially in patients with cirrhosis. In these patients, given the fears of severe bleeding associated with coagulation disorders as well as thrombocytopenia, we were interested to review the literature on this subject. Few studies are available and, for the moment, recommendations are of a low level of evidence. Paracentesis seems to be a safe procedure without severe haemorrhagic complications (< 1%), regardless of coagulation disorders and platelet count. Renal insufficiency, Child-Pugh C cirrhosis, thrombocytes < 50 G/L and cirrhosis of alcoholic origin may however increase the risk of bleeding...
October 18, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29050988/physiological-and-immune-response-of-juvenile-rainbow-trout-to-dietary-bovine-lactoferrin
#9
Trinh Dinh Khuyen, Syaghalirwa N M Mandiki, Valérie Cornet, Jessica Douxfils, Stéphane Betoulle, Peter Bossier, Felipe E Reyes-López, Lluis Tort, Patrick Kestemont
Lactoferrin, a large multifunctional glycoprotein, is involved in many physiological functions but its immunomodulatory pathways are not well characterized in fish. The objective of the present study was to investigate the temporal effect of dietary bovine lactoferrin (BLf) at low (0.1%) and high (1%) on immunological organs of rainbow trout juveniles. BLf diets did not affect specific growth rate, haematocrit, splenic index, spleen respiratory burst activity as well as humoral (mIgM) and neutrophils (MPO) gene expressions after short term - 35 days (D35) and long term nutrient test - 51 days (D51) of feeding...
October 16, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29039097/in-vitro-assessment-of-nanoparticle-effects-on-blood-coagulation
#10
Timothy M Potter, Jamie C Rodriguez, Barry W Neun, Anna N Ilinskaya, Edward Cedrone, Marina A Dobrovolskaia
Blood clotting is a complex process which involves both cellular and biochemical components. The key cellular players in the blood clotting process are thrombocytes or platelets. Other cells, including leukocytes and endothelial cells, contribute to clotting by expressing the so-called pro-coagulant activity (PCA) complex on their surface. The biochemical component of blood clotting is represented by the plasma coagulation cascade, which includes plasma proteins also known as coagulation factors. The coordinated interaction between platelets, leukocytes, endothelial cells, and plasma coagulation factors is necessary for maintaining hemostasis and for preventing excessive bleeding...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29033890/an-enigmatic-case-of-acute-mercury-poisoning-clinical-immunological-findings-and-platelet-function
#11
Ilka Kleffner, Susann Eichler, Tobias Ruck, Lisa Schüngel, Steffen Pfeuffer, Philipp Polzer, Ralf Dittrich, Rainer Dziewas, Catharina C Gross, Kerstin Göbel, Heinz Wiendl, Beate E Kehrel, Sven G Meuth
Severe mercury intoxication is very rare in developed countries, but still occurs as the result of volatile substance abuse, suicide attempts, occupational hazards, or endemic food ingestion as reported in the cases of public health disasters in Iraq and in Minamata Bay, Japan. Here, we describe the dramatic physical and cognitive decline of a 23-year-old patient caused by a severe methyl mercury (MeHg) intoxication of unknown origin. We show serial magnetic resonance imaging (MRI) of the patient's brain, as well as ex vivo analyses of blood and cerebrospinal fluid including multicolor flow cytometric measurements, functional assays of hemostaseologic efficacy, and evaluation of regulatory effector molecules...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29032970/platelet-count-a-predictor-of-sepsis-and-mortality-in-severe-burns
#12
Liam D Cato, Christopher M Wearn, Jonathan R B Bishop, Michael J Stone, Paul Harrison, Naiem Moiemen
BACKGROUND: Platelet cells, or thrombocytes, have additional roles to haemostasis. After burn injury, platelet counts drop to a nadir at days 2-5 then rise to a peak between days 10-18. The nadir has previously been associated with mortality but there is currently no thorough investigation of its potential to predict sepsis in adults. The primary objective of this study is to assess whether platelet count can predict survival and sepsis in adults with severe burn injuries. METHODS AND FINDINGS: A retrospective cohort analysis of platelet count and other blood parameters in 145 burn patients with a TBSA greater than 20%...
October 9, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29026849/increased-levels-of-vegf-a-and-hif-1%C3%AE-in-turkish-children-with-crimean-congo-hemorrhagic-fever
#13
Murat Sefikogullari, Ali Kaya, Huseyin Aydin, Enver Sancakdar, Veysel Kenan Celik, Gokhan Bagci
BACKGROUND: Crimean-Congo Hemorrhagic Fever (CCHF) is a disease characterized by serious course, including acute viral fever, ecchymosis, thrombocytopenia, liver dysfunction and high rate of mortality. Hypoxia Inducible Factor-1α (HIF-1α) and Vascular Endothelial Growth Factor-A (VEGF-A) play an important role both in the inflammatory process and plasma leakage. The aim of this study was to define HIF-1α and VEGF-A serum levels obtained from CCHF patients and control group and to investigate whether these factors were correlated with the pathogenesis of this disease...
March 2017: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/29024038/baseline-lab-parameters-predicting-clinical-outcome-in-melanoma-patients-treated-with-ipilimumab-a-single-center-analysis
#14
Thilo Gambichler, Victoria Brown, Ann-Kathrin Steuke, Lutz Schmitz, Eggert Stockfleth, Laura Susok
BACKGROUND: Overall response rates (ORR) for ipilimumab in advanced melanoma are only about 10%. Hence, it is important to explore biomarkers predicting ipilimumab responders. OBJECTIVE: We aimed to explore biomarkers in order to predict therapy outcome in melanoma patients who have undergone standard ipilimumab therapy in a real-world setting. METHODS: Databases of cutaneous melanoma patients (n = 52) who had received ipilimumab were reviewed and data collected on patient characteristics and diverse lab parameters...
October 10, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29022050/concurrent-radiotherapy-with-temozolomide-vs-concurrent-radiotherapy-with-a%C3%A2-cisplatinum-based-polychemotherapy-regimen-acute-toxicity-in-pediatric-high-grade-glioma-patients
#15
Clemens Seidel, André O von Bueren, Sabrina Bojko, Marion Hoffmann, Torsten Pietsch, Gerrit H Gielen, Monika Warmuth-Metz, Brigitte Bison, Rolf-D Kortmann, Christof M Kramm
PURPOSE: As the efficacy of all pediatric high-grade glioma (HGG) treatments is similar and still disappointing, it is essential to also investigate the toxicity of available treatments. METHODS: Prospectively recorded hematologic and nonhematologic toxicities of children treated with radiochemotherapy in the HIT GBM-C/D and HIT-HGG-2007 trials were compared. Children aged 3-18 years with histologically proven HGG (WHO grade III and IV tumors) or unequivocal radiologic diagnosis of diffuse intrinsic pontine glioma (DIPG) were included in these trials...
October 11, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28988277/a-physiologically-based-pharmacokinetic-and-pharmacodynamic-pbpk-pd-model-of-the-histone-deacetylase-hdac-inhibitor-vorinostat-for-pediatric-and-adult-patients-and-its-application-for-dose-specification
#16
Daniel Moj, Hannah Britz, Jürgen Burhenne, Clinton F Stewart, Gerlinde Egerer, Walter E Haefeli, Thorsten Lehr
PURPOSE: This study aimed at recommending pediatric dosages of the histone deacetylase (HDAC) inhibitor vorinostat and potentially more effective adult dosing regimens than the approved standard dosing regimen of 400 mg/day, using a comprehensive physiologically based pharmacokinetic/pharmacodynamic (PBPK/PD) modeling approach. METHODS: A PBPK/PD model for vorinostat was developed for predictions in adults and children. It includes the maturation of relevant metabolizing enzymes...
October 7, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28976873/inflammatory-biomarkers-and-liver-histopathology-in-non-uremic-and-uremic-chronic-hepatitis-c-patients
#17
Bengu Tatar, Sukran Kose, Emel Pala, Erhan Tatar
BACKGROUND: The aim of this study is to investigate the association between hepatic activity index (HAI) and fibrosis score (FS) with inflammation biomarkers in non-uremic and uremic hepatitis C positive patients. METHODS: Fifty chronic hepatitis C (cHepC) positive patients, having a liver biopsy were included in this study. Liver biopsies were scored according to modified ISHAC scoring system. 25 healthy controls of similar age and gender were also enrolled as control group...
2017: Acta Medica (Hradec Králové)
https://www.readbyqxmd.com/read/28944945/safety-and-efficacy-of-ventriculostomy-procedures-under-dual-antiplatelet-therapy-in-patients-treated-with-stent-assisted-coiling-in-subarachnoid-hemorrhage
#18
Soner Civi, Cagatay Andic, Ozgur Kardes, Halil İbrahim Suner, Emre Durdag, Ozlem Ozmete, Kadir Tufan
AIM: Stent assisted coilling (SAC) is an alternative in the treatment of ruptured aneurysms. Stenting requires the use of dual antiplatelet agents. Hydrocephaly is a complication of subarachnoid hemorrhage (SAH) requiring ventriculostomy. Antiplatelet treatment reveal a risk of hemorrhage in ventriculostomy. Anti-aggregant effect starts at least four hours after the initial doses of treatment. However, in many studies, ventriculostomy was performed before antiplatelet treatment and the hemorrhagic complications were related to the procedure...
July 16, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28941176/optimized-human-platelet-lysate-as-novel-basis-for-a-serum-xeno-and-additive-free-corneal-endothelial-cell-and-tissue-culture
#19
Daniel Thieme, Lynn Reuland, Toni Lindl, Friedrich Kruse, Thomas Fuchsluger
INTRODUCTION: The expansion of donor derived corneal endothelial cells is a promising approach for regenerative therapies in corneal diseases. To achieve the best GMP standard the entire cultivation process should be devoid of non-human components. However, so far there is no suitable xeno-free protocol for clinical applications. METHODS: We therefore introduce a processed variant of a platelet lysate for the use in corneal cell and tissue culture based on a GMP-grade thrombocyte concentrate...
September 21, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28939876/thrombopoietic-stimulating-activity-of-rhtyrrs-y341a
#20
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
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