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blood group system antibodies

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https://www.readbyqxmd.com/read/28713577/seroprevalence-of-spotted-fever-group-sfg-rickettsiae-infection-in-domestic-ruminants-in-khartoum-state-sudan
#1
Nagwa M Eisawi, Dina A Hassan, Mohammed O Hussien, Azza B Musa, Abdel Rahim M El Hussein
Spotted fever group (SFG) rickettsiosis is caused by obligatory intracellular Gram-negative bacteria that belong to the genus Rickettsia. Ticks belonging to the family Ixodidae can act as vectors, reservoirs or amplifiers of SFG rickettsiae. This study was conducted to estimate the seroprevalence of SFG rickettsioses in cattle, sheep and goats from Khartoum State, Sudan. Blood samples were collected from a total of 600 animals (sheep, goats and cattle) from 32 different farms distributed in three locations in Khartoum State during the period January to December 2012...
May 2017: Veterinary Medicine and Science
https://www.readbyqxmd.com/read/28713277/does-the-strategy-of-risk-group-testing-for-hepatitis-c-hit-the-target
#2
Mirjana R Jovanovic, Aleksandar Miljatovic, Laslo Puskas, Slobodan Kapor, Dijana L Puskas
In the European Union, it is estimated that there are 5.5 million individuals with chronic infection of hepatitis C. Intravenous drug abuse is undoubtedly the key source of the hepatitis C epidemic in Europe and the most efficient mode of transmission of HCV infections (primarily due to short incubation time, but also because the virus is introduced directly into the blood stream with the infected needle). Potentially high-risk and vulnerable populations in Europe (and the world) include immigrants, prisoners, sex workers, men having sex with men, individuals infected with HIV, psychoactive substance users etc...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28713115/association-between-cheiloscopic-patterns-and-abo-blood-groups-among-south-indian-population
#3
Sneha Khanapure, H G Suhas, Shrudha Potdar, George Sam, C B Sudeep, M R Arjun
BACKGROUND: Human beings have few characteristics that are unique from others. Lip prints are one of such feature. They are not changed throughout the life and are not influenced by injuries, diseases, or environmental changes. According to the various antigen-antibody reactions in the bloodstream, different individuals have specific blood groups. AIM: To study the distribution of lip print patterns among individuals with different ABO and Rh blood groups and also to know the relation between their characters and blood groups...
July 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28708979/why-human-anti-gal%C3%AE-1-4gal%C3%AE-1-4glc-natural-antibodies-do-not-recognize-the-trisaccharide-on-erythrocyte-membrane-molecular-dynamics-and-immunochemical-investigation
#4
Pavel Volynsky, Roman Efremov, Ilya Mikhalev, Kira Dobrochaeva, Alexander Tuzikov, Elena Korchagina, Polina Obukhova, Evgenia Rapoport, Nicolai Bovin
BACKGROUND: Human blood contains a big variety of natural antibodies, circulating throughout life at constant concentration. Previously, we have found natural antibodies capable of binding to trisaccharide Galα1-4Galβ1-4Glc (P(k)) practically in all humans. Intriguingly, the same trisaccharide is a key fragment of glycosphingolipid globotriaosylceramide (Gb3Cer) - normal component of erythrocyte and endothelial cell membrane, i.e. the antibodies and their cognate antigen coexist without any immunological reaction...
July 11, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28697567/antibodies-to-signaling-molecules-and%C3%A2-receptors-in-alzheimer-s-disease-are%C3%A2-associated-with-psychomotor-slowing-depression-and-poor-visuospatial-function
#5
Lasse M Giil, Christian A Vedeler, Einar K Kristoffersen, Jan Erik Nordrehaug, Harald Heidecke, Ralf Dechend, Kai Schulze-Forster, Dominik N Muller, Victoria S von Goetze, Otavio Cabral-Marques, Gabriela Riemekasten, Petra Vogelsang, Staale Nygaard, Anders Lund, Dag Aarsland
BACKGROUND: Alzheimer's disease (AD) is associated with several antibodies as well as signaling molecules and receptors. These may be detrimental in the presence of a disrupted blood-brain barrier (BBB). OBJECTIVE: To investigate whether the levels of antibodies toward 33 signaling molecules involved in neurotransmitter, vascular, and immune functions were associated with AD and, within the AD group; cognitive function and mood. METHODS: Antibodies in sera from patients with mild AD [(n = 91) defined as a Mini-Mental State Examination ≥ 20 or a Clinical Dementia Rating Scale≤1] and healthy controls (n = 102) were measured with enzyme-linked immunosorbent assays...
July 1, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28665003/multicentre-evaluation-of-the-new-ortho-vision%C3%A2-analyser
#6
E Lazarova, Y Scott, A van den Bos, P Wantzin, R Atugonza, S Solkar, N Carpio
BACKGROUND: Implementation of fully automated analysers has become a crucial security step in the blood bank; it reduces human errors, allows standardisation and improves turnaround time (TAT). OBJECTIVES: We aimed at evaluating the ease of use and the efficiency of the ORTHO VISION® Analyser (VISION) in comparison to the ORTHO AutoVue® Innova System (AutoVue) in six different laboratories. METHODS: After initial training and system configuration, VISION was used in parallel to AutoVue following the daily workload, both automates being based on ORTHO BioVue® System column agglutination technology...
June 30, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28664195/partial-exhaustion-of-cd8-t-cells-and-clinical-response-to-teplizumab-in-new-onset-type-1-diabetes
#7
S Alice Long, Jerill Thorpe, Hannah A DeBerg, Vivian Gersuk, James Eddy, Kristina M Harris, Mario Ehlers, Kevan C Herold, Gerald T Nepom, Peter S Linsley
Biologic treatment of T1D typically results in transient stabilization of C-peptide levels (a surrogate for endogenous insulin secretion) in some patients, followed by progression at the same rate as in untreated control groups. Here, we used integrated systems biology and flow cytometry approaches with clinical trial blood samples to elucidate pathways associated with C-peptide stabilization in T1D subjects treated with the anti-CD3 monoclonal antibody teplizumab. We identified a population of CD8 T cells that accumulated in subjects with the best response to treatment (responders) and showed that these cells phenotypically resembled exhausted T cells by expressing high levels of the transcription factor EOMES, effector molecules, and multiple inhibitory receptors (IRs), including TIGIT and KLRG1...
November 2016: Science Immunology
https://www.readbyqxmd.com/read/28658782/unusually-detected-anti-m-antibody-presenting-as-cross-match-incompatibility-in-a-female-child-diagnosed-with-small-round-cell-tumour
#8
Sheetal Anand Chandak, Aruna Vishwanath Vanikar
MNS antigen system is one of the human blood group systems. Anti-M antibody is a relatively common, naturally occurring antibody of IgM variety. Clinically significant anti-M antibody is reactive at 37°C in the anti-human globulin phase due to high thermal amplitude of IgM component or presence of IgG component. If anti-M antibody is activated at 37°C or in the anti-human globulin phase, it may cause delayed haemolytic transfusion reactions or haemolytic disease of newborn, which suggest variable clinical significance...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28657765/the-fors-awakens-review-of-a-blood-group-system-reborn
#9
Annika K Hult, Martin L Olsson
The presence of the FORS1 antigen on red blood cells was discovered relatively recently, and in 2012, the International Society of Blood Transfusion (ISBT) acknowledged FORS as blood group system number 031. This rare antigen is carried by a glycosphingolipid and formed by elongation of the P antigen. Most people have naturally occurring anti-FORS1 in their plasma. The clinical significance of these antibodies is unknown in the transfusion setting, but they can hemolyze FORS1+ erythrocytes in the presence of complement in vitro...
June 2017: Immunohematology
https://www.readbyqxmd.com/read/28657764/two-cases-of-the-variant-rhd-dau5-allele-associated-with-maternal-alloanti-d
#10
Jennifer A Duncan, Susan Nahirniak, Rodrigo Onell, Gwen Clarke
Rh is a complex blood group system with diverse genotypes that may encode weak and partial D variants. Standard serologic analysis may identify clinically significant D variants as D+; nevertheless, individuals with these D variants should be managed as D- patients to prevent antibody formation to absent D epitopes. Variant identification is necessary during pregnancy to allow for timely and appropriate Rh immune globulin (RhIG) prophylaxis for hemolytic disease of the fetus and newborn (HDFN) as D alloimmunization can occur with some D variants...
June 2017: Immunohematology
https://www.readbyqxmd.com/read/28655090/-molecular-mechanisms-and-relationship-of-m2-polarized-macrophages-with-early-response-in-multiple-myeloma
#11
X Y Chen, R X Sun, W Y Zhang, T Liu, Y H Zheng, Y Wu
Objective: To investigate the relationship between M2-polarized macrophages and early response in multiple myeloma and its molecular mechanism. Methods: Two hundred and forty bone marrow biopsy tissue were collected and M2-polarized macrophages were stained by anti-CD163 monoclonal antibody. In vitro M2-polarized macrophages were derived from human peripheral blood mononuclear cell or THP-1 cells and identified by flow cytometry. Two myeloma cell lines RPMI 8226 and U266 were co-cultured with M2 macrophages using a transwell system...
June 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28652981/baseline-values-of-immunologic-parameters-in-the-lizard-salvator-merianae-teiidae-squamata
#12
Ana Paula Mestre, Patricia Susana Amavet, Pablo Ariel Siroski
The genus Salvator is widely distributed throughout South America. In Argentina, the species most abundant widely distributed is Salvator merianae. Particularly in Santa Fe province, the area occupied by populations of these lizards overlaps with areas where agriculture was extended. With the aim of established baseline values for four immunologic biomarkers widely used, 36 tegu lizards were evaluated tacking into account different age classes and both sexes. Total leukocyte counts were not different between age classes...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28614955/systemic-effects-after-intravitreal-injection-of-bevacizumab-in-new-born-rabbit-eyes
#13
Yih-Shiou Hwang, Chi-Hsien Liu, Yin-Cheng Huang, Chih-Shan Chen, Tun-Lu Chen, Nan-Kai Wang, Yen-Po Chen, Kwan-Jen Chen, Chi-Chun Lai, Wei-Chi Wu
PURPOSE: To determine the systemic impact of intravitreal bevacizumab (IVB), an anti-vascular endothelium growth factor antibody, after injection into newborn rabbit eyes. MATERIALS AND METHODS: We used four groups of rabbits. Group 1 rabbits received a single injection of IVB starting from the age of 6 weeks. Group 2 rabbits received a single injection of balanced salt solution (BSS, 0.025 ml) and served as controls for group 1. Group 3 rabbits received 2 consecutive injections of IVB at the ages of 6 weeks and 10 weeks...
June 14, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28614703/circulating-angiotensin-type-ii-receptor-possible-marker-for-antibody-mediated-rejection-after-renal-transplantation
#14
Pamela M Kimball, Gaurav Gupta, Felecia McDougan
BACKGROUND: Presence of antibody[Ab] against angiotensin receptor[AT1R] indicates heightened risk for antibody mediated rejection[AMR] after transplantation but is insufficient as a marker. We speculated AT1R might be released systemically because of AMR and might be a useful biomarker. METHODS: AT1R was measured in blood from 73 Normals and 72 renal patients pre- and post-transplantation. Patients were stratified as AMR-free[Gp1], AMR<1yr[Gp2] and AMR>1yr[Gp3]...
June 11, 2017: Human Immunology
https://www.readbyqxmd.com/read/28596661/what-is-it-really-anti-g-or-anti-d-plus-anti-c-clinical-significance-in-antenatal-mothers
#15
Soumya Das, Shamee Shastry, M Murugesan, Poornima Baliga B, Shamee Shastry
G antigen of Rh blood group system is present either along with D and/or C positive red cells. Hence, [serologically anti-G presents with the similar picture as that of multiple antibodies (anti-D + anti-C). Differentiating them is important as anti-D + anti-C causes severe hemolytic disease of the fetus and newborn than anti-G. In pregnancies with anti-G alone, alloimmunization due to D antigen could be prevented by prophylactic administration of RhIg. Differentiating between anti-D + C from anti-G in alloimmunized pregnant mothers becomes essential...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28590233/mitoxantrone-suppresses-vascular-smooth-muscle-cell-proliferation-and-balloon-injury-induced-neointima-formation-an-in-vitro-and-in-vivo-study
#16
Yuan Teng, Chun Liang, Ziyi Wang, Wen Li, Jianxing Yu, Zhen Shan, Shenming Wang
Neointima formation, which occurs after vascular injury due to vascular disease or interventions such as angioplasty and stent placement, is a complex process that involves multiple molecular and cellular mechanisms. The inhibition of neointima formation is vital to prevent restenosis of blood vessels. In the present study, we investigated whether the systemic administration of mitoxantrone can inhibit neointima formation, and evaluated the underlying mechanisms under in vitro and in vivo experimental conditions...
June 4, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28587342/experimental-study-of-the-anti-atherosclerotic-effect-of-demethylzeylasteral
#17
Ying Huang, Shaofeng Wang, Chunya Zhang, Zhiqing Xu, Jinghua Shen, Xiaogang Du, Huanhua Zhang, Kangjian Zhang, Daifu Zhang
This study aimed to confirm that atherosclerosis (AS) is a systemic immune-mediated chronic inflammatory disease and to investigate the anti-atherosclerotic effect of demethylzeylasteral by testing the immunocompetent cells and inflammatory mediators in the blood and atherosclerotic plaques of the rabbit model of AS. For this purpose, 60 male New Zealand white rabbits were given 150 g high-fat diet (1% cholesterol, 5% lard, and 15% egg yolk powder) daily for a total of 90 days. On day 61, the rabbits were randomly divided into the saline group (n=15), the rosuvastatin group (n=15), the low-dose demethylzeylasteral group (n=15), and the high-dose demethylzeylasteral group (n=15)...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28576386/-identification-of-alloantibodies-and-their-associations-balance-sheet-of-3%C3%A2-years-at-the-regional-center-of-blood-transfusion-in-rabat-morocco-and-difficult-in-transfusion-management
#18
S Achargui, A Zidouh, S Abirou, F Z Merhfour, S Monsif, S Amahrouch, A El Ghobre, M El Halhali, H Temmara, A El Hryfy, M Motqi, A Satty, M Kandili, M Aghri, K Hajjout, M Benajiba
Red blood cell immunization can lead to delays or even an impasse in a transfusion. OBJECTIVES: Determine the specificities of the most common of alloantibodies and their associations to correct management of red blood cell transfused. METHODS AND MATERIALS: A retrospective study between 2013 and 2015 in immunohematology laboratories at the Blood Transfusion Center of Rabat in Morocco. The following data were studied: frequency, specificities of alloantibodies, blood group involved in alloimmunization and difficult of management of transfusion in case with association of alloantibodies...
May 30, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28570672/mirasol-pathogen-reduction-technology-treatment-of-human-whole-blood-does-not-induce-acute-lung-injury-in-mice
#19
Beñat Mallavia, Nicholas Kwaan, Susanne Marschner, Susan Yonemura, Mark R Looney
In resource-limited settings and in the military theater, fresh human whole blood is commonly transfused, but infectious risks are a concern. Sophisticated molecular testing for potential infectious agents in the whole blood is often unavailable. To address this unmet need, pathogen reduction technology (PRT) has been developed, and it is an effective approach to inactivate a broad range of pathogens found in human blood. However, studies are needed to determine if it is harmful to blood cells and whether these cells could damage the transfused recipient, including the development of acute lung injury/acute respiratory distress syndrome...
2017: PloS One
https://www.readbyqxmd.com/read/28567552/periodontitis-deteriorates-peripheral-arterial-disease-in-japanese-population-via-enhanced-systemic-inflammation
#20
Norio Aoyama, Jun-Ichi Suzuki, Naho Kobayashi, Tomoya Hanatani, Norihiko Ashigaki, Asuka Yoshida, Yuka Shiheido, Hiroki Sato, Hidetoshi Kumagai, Yuichi Ikeda, Hiroshi Akazawa, Issei Komuro, Yuichi Izumi, Mitsuaki Isobe
Peripheral arterial disease (PAD) is a common manifestation of arterial stenosis of the extremity that reduces arterial flow. While patients with periodontitis are at a high risk of PAD, little causal information has been provided to date. To clarify the relationship, we conducted this cross-sectional study. The oral condition of patients with or without PAD, who attended Tokyo Medical and Dental University Hospital, was evaluated. Blood examinations and dental clinical measurements, including number of teeth, probing pocket depth (PPD), bleeding on probing (BOP) and clinical attachment level (CAL) were performed...
May 31, 2017: Heart and Vessels
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