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Red blood cells and pathology

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https://www.readbyqxmd.com/read/28320172/neuropathological-findings-from-an-autopsied-case-showing-posterior-reversible-encephalopathy-syndrome-like-neuroradiological-findings-associated-with-premedication-including-tacrolimus-for-autologous-peripheral-blood-stem-cell-transplantation
#1
Yuichi Hayashi, Akio Kimura, Hiroshi Nakamura, Maya Mimuro, Yasushi Iwasaki, Akira Hara, Mari Yoshida, Takashi Inuzuka
Posterior reversible encephalopathy syndrome (PRES) is diagnosed based on neuroradiological findings. Typically, PRES is reversible and presents with a good outcome; however, fatal outcomes have been reported. We report an autopsied case showing PRES-like neuroradiological findings associated with premedication including tacrolimus for autologous peripheral blood stem cell transplantation in a 28-year-old woman with a 2-year history of acute myeloid sarcoma/acute myeloid leukemia. Neurological examination revealed disturbed consciousness, muscle weakness in all extremities, and bilaterally diminished tendon reflexes...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28297729/the-role-of-abo-blood-type-in-thrombosis-scoring-systems
#2
Massimo Franchini, Giuseppe Marano, Stefania Vaglio, Liviana Catalano, Simonetta Pupella, Giancarlo Maria Liumbruno
In addition to their major role in transfusion medicine, there is increasing evidence that ABO blood group antigens (complex carbohydrate molecules widely expressed on the surface of red blood cells and several other cell types) are implicated in the development of a wide array of pathologic conditions. In particular, intense research has been dedicated over the last 50 years to the study of the association between non-O blood type and the risk of developing cardiovascular disorders. Several pathways have been hypothesized to explain this relationship, the most reasonable implying the influence of the ABO blood group on circulating plasma levels of von Willebrand factor, factor VIII, and several inflammatory cytokines...
March 15, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28295628/pathophysiological-aspects-of-red-blood-cells-in-end-stage-renal-disease-patients-resistant-to-recombinant-human-erythropoietin-therapy
#3
Hara T Georgatzakou, Vassilis L Tzounakas, Anastasios G Kriebardis, Athanassios D Velentzas, Effie G Papageorgiou, Artemis I Voulgaridou, Apostolos C Kokkalis, Marianna H Antonelou, Issidora S Papassideri
OBJECTIVE: Modified, bio-reactive red blood cells (RBCs) and RBC-derived microvesicles likely contribute to the hematological and cardiovascular complications in end-stage renal disease (ESRD). This study assesses the physiological profile of red blood cells (RBCs) in end-stage renal disease (ESRD) patients receiving standard or high doses of recombinant human erythropoietin (rhEPO). METHOD: Blood samples from twenty-eight patients under sustained hemodialysis, responsive or not to standard rhEPO administration were examined for RBC morphology, fragility, hemolysis, redox status, removal signaling, membrane protein composition and microvesiculation before and after dialysis...
March 10, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28291603/proliferative-kidney-disease-in-rainbow-trout-oncorhynchus-mykiss-under-intensive-breeding-conditions-pathogenesis-and-haematological-and-immune-parameters
#4
Miroslava Palikova, Ivana Papezikova, Zdenka Markova, Stanislav Navratil, Jan Mares, Lukas Mares, Libor Vojtek, Pavel Hyrsl, Eva Jelinkova, Heike Schmidt-Posthaus
Proliferative kidney disease (PKD) is an endoparasitic disease of salmonid fish caused by Tetracapsuloides bryosalmonae (Myxozoa: Malacosporea). This study presents a comprehensive view on PKD development in rainbow trout (Oncorhynchus mykiss) reared at an intensive fish breeding facility, with focus on mortality, pathology/histopathology, haematological findings and immune functions. Diseased and reference fish were sampled monthly and time course of natural infection was followed up from the onset of clinical signs (September 2014) to full recovery (January 2015)...
March 6, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28285158/catalytic-topological-insulator-bi2se3-nanoparticles-for-in-vivo-protection-against-ionizing-radiation
#5
Xiao-Dong Zhang, Yaqi Jing, Shasha Song, Jiang Yang, Jun-Ying Wang, Xuhui Xue, Yuho Min, Gyeongbae Park, Xiu Shen, Yuan-Ming Sun, Unyong Jeong
Bi2Se3 nanoparticles (NPs) have attracted wide interests in biological and medical applications. Layer-like Bi2Se3 with high active surface area is promising for free radical scavenging. Here, we extended the medical applications of Bi2Se3 NPs further to in vivo protection against ionizing radiation based on their superior antioxidant activities and electrocatalytic properties. It was found that Bi2Se3 NPs can significantly increase the surviving fraction of mice after exposure of high-energy radiation of gamma ray...
March 8, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28283108/higher-prevalence-of-restless-legs-syndrome-willis-ekbom-disease-in-multiple-sclerosis-patients-is-related-to-spinal-cord-lesions
#6
M Minár, D Petrleničová, P Valkovič
BACKGROUND: Multiple sclerosis (MS) is connected with higher prevalence of secondary restless legs syndrome/Willis-Ekbom disease (RLS/WED). Aim of this study was to determine risk factor for developing symptoms of RLS in MS patients. METHODS: In cross-sectional study we examined 200 random MS patients. After obtaining informed consents, patients undervent a structured interview based on RLS and MS symptoms and characteristics, demographic, and health-related data...
February 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28280877/unusual-intraosseous-fossilized-soft-tissues-from-the-middle-triassic-nothosaurus-bone
#7
Dawid Surmik, Bruce M Rothschild, Roman Pawlicki
Fossilized soft tissues, occasionally found together with skeletal remains, provide insights to the physiology and functional morphology of extinct organisms. Herein, we present unusual fossilized structures from the cortical region of bone identified in isolated skeletal remains of Middle Triassic nothosaurs from Upper Silesia, Poland. The ribbed or annuli-shaped structures have been found in a sample of partially demineralized coracoid and are interpreted as either giant red blood cells or as blood vessel walls...
April 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28273147/a-quantitative-brain-map-of-experimental-cerebral-malaria-pathology
#8
Patrick Strangward, Michael J Haley, Tovah N Shaw, Jean-Marc Schwartz, Rachel Greig, Aleksandr Mironov, J Brian de Souza, Sheena M Cruickshank, Alister G Craig, Danny A Milner, Stuart M Allan, Kevin N Couper
The murine model of experimental cerebral malaria (ECM) has been utilised extensively in recent years to study the pathogenesis of human cerebral malaria (HCM). However, it has been proposed that the aetiologies of ECM and HCM are distinct, and, consequently, no useful mechanistic insights into the pathogenesis of HCM can be obtained from studying the ECM model. Therefore, in order to determine the similarities and differences in the pathology of ECM and HCM, we have performed the first spatial and quantitative histopathological assessment of the ECM syndrome...
March 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28271003/optical-coherence-tomography-based-angiography-invited
#9
REVIEW
Chieh-Li Chen, Ruikang K Wang
Optical coherence tomography (OCT)-based angiography (OCTA) provides in vivo, three-dimensional vascular information by the use of flowing red blood cells as intrinsic contrast agents, enabling the visualization of functional vessel networks within microcirculatory tissue beds non-invasively, without a need of dye injection. Because of these attributes, OCTA has been rapidly translated to clinical ophthalmology within a short period of time in the development. Various OCTA algorithms have been developed to detect the functional micro-vasculatures in vivo by utilizing different components of OCT signals, including phase-signal-based OCTA, intensity-signal-based OCTA and complex-signal-based OCTA...
February 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28263172/duration-of-red-blood-cell-storage-and-inflammatory-marker-generation
#10
REVIEW
Caroline Sut, Sofiane Tariket, Ming Li Chou, Olivier Garraud, Sandrine Laradi, Hind Hamzeh-Cognasse, Jerard Seghatchian, Thierry Burnouf, Fabrice Cognasse
Red blood cell (RBC) transfusion is a life-saving treatment for several pathologies. RBCs for transfusion are stored refrigerated in a preservative solution, which extends their shelf-life for up to 42 days. During storage, the RBCs endure abundant physicochemical changes, named RBC storage lesions, which affect the overall quality standard, the functional integrity and in vivo survival of the transfused RBCs. Some of the changes occurring in the early stages of the storage period (for approximately two weeks) are reversible but become irreversible later on as the storage is extended...
March 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28258943/anaesthesia-for-abnormally-invasive-placenta-a-single-institution-case-series
#11
N J Taylor, R Russell
BACKGROUND: Abnormally invasive placenta describes a spectrum of disorders resulting in pathological placental implantation. It is associated with the potential for severe maternal haemorrhage and poor fetal outcome. Increasing numbers of women are at risk owing to the rising incidence of uterine surgery and increasing maternal age. We report data over a five-year period describing anaesthetic management of cases of abnormally invasive placenta in a UK tertiary-referral maternity unit and assess how management has developed...
January 23, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28251913/elevated-hematocrit-enhances-platelet-accumulation-following-vascular-injury
#12
Bethany L Walton, Marcus Lehmann, Tyler Skorczewski, Lori A Holle, Joan D Beckman, Jeremy A Cribb, Micah J Mooberry, Adam R Wufsus, Brian C Cooley, Jonathan W Homeister, Rafal Pawlinski, Michael R Falvo, Nigel S Key, Aaron L Fogelson, Keith B Neeves, Alisa S Wolberg
Red blood cells (RBCs) demonstrate procoagulant properties in vitro, and elevated hematocrit is associated with reduced bleeding and increased thrombosis risk in humans. These observations suggest RBCs contribute to thrombus formation. However, effects of RBCs on thrombosis are difficult to assess because humans and mice with elevated hematocrit typically have co-existing pathologies. Using an experimental model of elevated hematocrit in healthy mice, we measured effects of hematocrit in two in vivo clot formation models...
March 1, 2017: Blood
https://www.readbyqxmd.com/read/28248245/the-proteome-of-the-red-blood-cell-an-auspicious-source-of-new-insights-into-membrane-centered-regulation-of-homeostasis
#13
REVIEW
Giel J C G M Bosman
During the past decade, the hand-in-hand development of biotechnology and bioinformatics has enabled a view of the function of the red blood cell that surpasses the supply of oxygen and removal of carbon dioxide. Comparative proteomic inventories have yielded new clues to the processes that regulate membrane-cytoskeleton interactions in health and disease, and to the ways by which red blood cells communicate with their environment. In addition, proteomic data have revealed the possibility that many, hitherto unsuspected, metabolic processes are active in the red blood cell cytoplasm...
November 25, 2016: Proteomes
https://www.readbyqxmd.com/read/28243835/a-lifetime-aging-study-of-human-cd19-transgenic-mice
#14
W Iverson, E Straley, S Oldham, J Rojko, S Turman, Y Wang
Mice transgenic for human CD19 have been an important animal model to help understand the role of this molecule in B lymphocyte function. Previously, no lifetime studies had been performed to understand the effects of this CD19 over expression on the survival or spontaneous pathology within the C57BL/6J background strain. We conducted a lifetime study with interim sacrifices to understand the transgenic effects on clinical signs, body weight, survival, and spontaneous pathology. Blood and urine samples were collected from select animals at various time points during the study for measurement of clinical pathology parameters and groups of animals were euthanized and examined at predetermined intervals...
February 27, 2017: Transgenic Research
https://www.readbyqxmd.com/read/28237973/modulatory-effects-of-melatonin-and-vitamin%C3%A2-%C3%A2-c-on-oxidative-stress-mediated-haemolytic-anaemia-and-associated-cardiovascular-dysfunctions-in-rats
#15
Temitayo Olabisi Ajibade, Ademola Adetokunbo Oyagbemi, Ladoke A Durotoye, Temidayo Olutayo Omóbòwálé, Ebunoluwa Racheal Asenuga, Funsho Olakitike Olayemi
Background Phenylhydrazine (PHE) in experimental animal models has been widely reported to cause haemolytic anaemia, via the induction of oxidative stress and thus causing deleterious cardiovascular complications. Hence, this study was designed to evaluate the possible modulatory role of melatonin (MLT) or vitamin C when co-administered with PHE. Methods Anaemia was established with PHE administration. MLT or vitamin C was co-administered with PHE. Haematological parameters, markers of oxidative stress, enzymic and non-enzymic antioxidants, blood pressure and electrocardiograms were assessed...
March 1, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28230832/specific-interactions-between-lectins-and-red-blood-cells-of-chornobyl-cleanup-workers-as-indicator-of-some-late-radiation-effects
#16
I S Karpova
AIM: Growing interest in lectins is based on their diagnostic and pharmacological potential, especially the ability to inhibit proliferation and initiate apoptosis of cancer cells. In our research microplate lectinoassay able to detect carbohydrate containing structures (receptors) on erythrocyte surface have been proposed for Chornobyl cleanup workers (1986) monitoring. It was expected to reveal specific abnormalities associated with pathological condition arising as a result of late radiation effects...
December 2016: Experimental Oncology
https://www.readbyqxmd.com/read/28224046/eighth-international-chorea-acanthocytosis-symposium-summary-of-workshop-discussion-and-action-points
#17
Samuel S Pappas, Juan Bonifacino, Adrian Danek, William T Dauer, Mithu De, Lucia De Franceschi, Gilbert DiPaolo, Robert Fuller, Volker Haucke, Andreas Hermann, Benoit Kornmann, Bernhard Landwehrmeyer, Johannes Levin, Aaron M Neiman, Dobrila D Rudnicki, Ody Sibon, Antonio Velayos-Baeza, Jan J Vonk, Ruth H Walker, Lois S Weisman, Roger L Albin
Chorea-Acanthocytosis (ChAc) is a rare hereditary neurological disorder characterized by abnormal movements, red blood cell pathology, and progressive neurodegeneration. Little is understood of the pathogenesis of ChAc and related disorders (collectively Neuroacanthocytosis). The Eighth International Chorea-Acanthocytosis Symposium was held in May 2016 in Ann Arbor, MI, USA, and focused on molecular mechanisms driving ChAc pathophysiology. Accompanying the meeting, members of the neuroacanthocytosis research community and other invited scientists met in a workshop to discuss the current understanding and next steps needed to better understand ChAc pathogenesis...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28223716/preoperative-red-cell-distribution-width-and-neutrophil-to-lymphocyte-ratio-predict-survival-in-patients-with-epithelial-ovarian-cancer
#18
Zheng Li, Na Hong, Melissa Robertson, Chen Wang, Guoqian Jiang
Several parameters of preoperative complete blood count (CBC) and inflammation-associated blood cell markers derived from them have been reported to correlate with prognosis in patients with epithelial ovarian cancer (EOC), but their prognostic importance and optimal cutoffs are still needed be elucidated. Clinic/pathological parameters, 5-year follow-up data and preoperative CBC parameters were obtained retrospectively in 654 EOC patients underwent primary surgery at Mayo Clinic. Cutoffs for neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and monocyte-to-lymphocyte ratio (MLR) were optimized by receiver operating characteristic (ROC) curve...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28219324/non-anti-coagulant-factors-associated-with-filter-life-in-continuous-renal-replacement-therapy-crrt-a-systematic-review-and-meta-analysis
#19
Matthew Brain, Elizabeth Winson, Owen Roodenburg, John McNeil
BACKGROUND: Optimising filter life and performance efficiency in continuous renal replacement therapy has been a focus of considerable recent research. Larger high quality studies have predominantly focussed on optimal anticoagulation however CRRT is complex and filter life is also affected by vascular access, circuit and management factors. We performed a systematic search of the literature to identify and quantify the effect of vascular access, circuit and patient factors that affect filter life and presented the results as a meta-analysis...
February 20, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28213861/peri-operative-allogeneic-blood-transfusion-and-outcomes-after-radical-cystectomy-a-population-based-study
#20
D Robert Siemens, Melanie T Jaeger, Xuejiao Wei, Francisco Vera-Badillo, Christopher M Booth
INTRODUCTION: To describe factors associated with peri-operative blood transfusion (PBT) at radical cystectomy (RC) for patients with bladder cancer and evaluate its association on both early and late outcomes. METHODS: Electronic records of treatment and surgical pathology reports were linked to the population-based Ontario Cancer Registry to identify all patients who underwent RC between 2000 and 2008. Modified Poisson regression model was used to determine the factors associated with PBT...
February 17, 2017: World Journal of Urology
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