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https://www.readbyqxmd.com/read/28447765/plasma-microrna-451-as-a-novel-hemolytic-marker-for-%C3%AE-0-thalassemia-hbe-disease
#1
Kamonlak Leecharoenkiat, Yuka Tanaka, Yasuko Harada, Porntip Chaichompoo, Orawan Sarakul, Yasunobu Abe, Duncan Richard Smith, Suthat Fucharoen, Saovaros Svasti, Tsukuru Umemura
In Southeast Asia, particularly in Thailand, β0-thalassemia/hemoglobin E (HbE) disease is a common hereditary hematological disease. It is associated with pathophysiological processes, such as the intramedullary destruction of immature erythroid cells and peripheral hemolysis of mature red blood cells. MicroRNA (miR) sequences, which are short non-coding RNA that regulate gene expression in a suppressive manner, serve a crucial role in human erythropoiesis. In the present study, the plasma levels of the erythroid-expressed miRNAs, miR‑451 and miR‑155, were analyzed in 23 patients with β0-thalassemia/HbE and 16 control subjects...
March 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447424/does-morphology-matter-in-2017-an-approach-to-morphologic-clues-in-non-neoplastic-blood-and-bone-marrow-disorders
#2
REVIEW
D S Chabot-Richards, K Foucar
Numerous non-neoplastic and neoplastic conditions manifest with distinctive features in blood. Although automated complete blood count (CBC) data are essential, CBC information alone is insufficient for diagnosis. Consequently, morphologic review of blood smears is still relevant in the era of sophisticated automated analyzer systems. Pathologist interpretation of the peripheral blood smear, in conjunction with CBC and clinical information, can provide rapid diagnostic information and guide cost-effective targeted laboratory testing...
May 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28447420/red-cell-membrane-disorders
#3
REVIEW
J Narla, N Mohandas
Significant advances have been made in our understanding of the structural basis for altered cell function in various inherited red cell membrane disorders with reduced red cell survival and resulting hemolytic anemia. The current review summarizes these advances as they relate to defining the molecular and structural basis for disorders involving altered membrane structural organization (hereditary spherocytosis [HS] and hereditary elliptocytosis [HE]) and altered membrane transport function (hereditary overhydrated stomatocytosis and hereditary xerocytosis)...
May 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28447417/diagnostic-approach-to-microangiopathic-hemolytic-disorders
#4
REVIEW
K Kottke-Marchant
Thrombotic micro-angiopathies (TMA) are a group of related disorders that are characterized by thrombosis of the microvasculature and associated organ dysfunction, and encompass congenital, acquired, and infectious etiologies. A hall mark of TMAs is the fragmentation of erythrocytes by the microvascular thrombi, resulting in a hemolytic anemia. There are several distinct pathophysiologies leading to microangiopathic hemolysis, ranging from decreased degradation of von Willebrand factor as seen in thrombotic thrombocytopenic purpura (TTP) to endothelial damage facilitated by Escherichia coli shiga toxin or complement dysregulation, seen in shiga toxin-related hemolytic-uremic syndrome (Stx-HUS) and complement-mediated TMA (also called atypical hemolytic-uremic syndrome), respectively...
May 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28446857/hemolytic-anemia-caused-by-kinking-of-dacron-grafts-implanted-in-repair-of-after-aortic-dissection
#5
Feridoun Sabzi, Fahimeh Ghasemi, Atefeh Asadmobini
BACKGROUND: Hemolytic anemia caused by a kinked Dacron graft is a rare complication after repair of acute aortic dissection. We present a case of hemolytic anemia due to kinking of previously implanted Dacron graft for ascending aorta dissection treated by surgery and replaced with new Dacron. CASE DETAILS: We report a case of postoperative hemolytic anemia with kinking of the graft at the outer graft layer and intra luminal bulging of the inner graft. Postoperative computed tomography showed Dacron graft kinking at the mid part of the graft...
September 2016: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/28446324/-research-advance-of-microparticles-in-hypercoagulation-of-hemolytic-anemia-review
#6
Xie Su, Peng Cheng, Dong-Hong Deng
Microparticles (MP) are small membrane vesicles released from many different cell types in response to cellular activation or apoptosis, which have the procoagulant effect. Hemolytic anemia(HA) is a type of anemia that have a short life expectancy of red blood cells due to the destruction which exceed the hematopoietic compensatory capacity of bone marrow. Sickle cell anemia(SCD), thalassemia and paroxysmal nocturnal hemoglobinuria(PNH) are all characterized by hypercoagulation and thromboembolism (TE). Research shows that MP can promote the formation of hypercoagulative state which in turn increases the risk of thromboembolism in HA...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28445008/prevalence-of-complement-mediated-cell-lysis-like-gene-sicg-in-streptococcus-dysgalactiae-subsp-equisimilis-isolates-from-japan-2014-2016
#7
Takashi Takahashi, Tomohiro Fujita, Akiyoshi Shibayama, Yuzo Tsuyuki, Haruno Yoshida
BACKGROUND: Streptococcus dysgalactiae subsp. equisimilis (SDSE; a β-hemolytic streptococcus of human or animal origin) infections are emerging worldwide. We evaluated the clonal distribution of complement-mediated cell lysis-like gene (sicG) among SDSE isolates from three central prefectures of Japan. METHODS: Group G/C β-hemolytic streptococci were collected from three institutions from April 2014 to March 2016. Fifty-five strains (52 from humans and three from animals) were identified as SDSE on the basis of 16S rRNA sequencing data...
July 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28443948/relapse-of-congenital-thrombotic-thrombocytopenic-purpura-after-spontaneous-remission-in-a-second-trimester-primigravida-case-report-and-review-of-the-literature
#8
Donavan de Souza Lúcio, Jacqueline Foelkel Pignatari, Marcelo Gil Cliquet, Henri Augusto Korkes
CONTEXT: Thrombotic microangiopathy syndrome or thrombotic thrombocytopenic purpura-hemolytic uremic syndrome (TTP-HUS) describes distinct diseases sharing common pathological features: microangiopathic hemolytic anemia and thrombocytopenia, without any other apparent cause. CASE REPORT: An 18-year-old second-trimester primigravida presented with a history of fifteen days of intense weakness, followed by diarrhea over the past six days. She reported having had low platelets since childhood, but said that she had never had bleeding or menstrual abnormalities...
April 20, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28443279/analogs-of-the-frog-skin-antimicrobial-peptide-temporin-1tb-exhibit-a-wider-spectrum-of-activity-and-a-stronger-antibiofilm-potential-as-compared-to-the-parental-peptide
#9
Lucia Grassi, Giuseppantonio Maisetta, Giuseppe Maccari, Semih Esin, Giovanna Batoni
The frog skin-derived peptide Temporin 1Tb (TB) has gained increasing attention as novel antimicrobial agent for the treatment of antibiotic-resistant and/or biofilm-mediated infections. Nevertheless, such a peptide possesses a preferential spectrum of action against Gram-positive bacteria. In order to improve the therapeutic potential of TB, the present study evaluated the antibacterial and antibiofilm activities of two TB analogs against medically relevant bacterial species. Of the two analogs, TB_KKG6A has been previously described in the literature, while TB_L1FK is a new analog designed by us through statistical-based computational strategies...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28443076/rstb-regulates-expression-of-the-photobacterium-damselae-subsp-damselae-major-virulence-factors-damselysin-phobalysin-p-and-phobalysin-c
#10
Mateus S Terceti, Amable J Rivas, Laura Alvarez, Manuel Noia, Felipe Cava, Carlos R Osorio
The marine pathogenic bacterium Photobacterium damselae subsp. damselae causes septicemia in marine animals and in humans. The pPHDD1 plasmid-encoded hemolysins damselysin (Dly) and phobalysin P (PhlyP), and the chromosome-encoded hemolysin phobalysin C (PhlyC) constitute its main virulence factors. However, the mechanisms by which expression of these three hemolysins is regulated remain unknown. Here we report the isolation of a mini-Tn10 transposon mutant which showed a strong impairment in its hemolytic activity...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28441942/rare-antibody-associated-hemolytic-transfusion-reaction-and-transfusion-related-acute-lung-injury-a-case-report
#11
Tim N Beck, Natalee G Young, Michelle L Erickson, Ignacio Prats
BACKGROUND: Hemolytic transfusion reactions and transfusion-related acute lung injury (TRALI) are life-threatening complications associated with the transfusion of blood products. Hemorrhage is one of the most common surgical complications and the risk of bleeding is particularly acute in patients with hematologic deficiencies. Management of surgical bleeding can be divided into two phases. The first phase centers on immediate control of acute bleeding and the second phase focuses on keeping the patient stable and on reducing the sequelae associated with blood transfusions and blood loss...
April 26, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28439485/treatment-of-atypical-hemolytic-uremic-syndrome-in-the-era-of-eculizumab
#12
Rawaa Ebrahem, Salam Kadhem, Quoc Truong
Hemolytic-uremic syndrome (HUS) is the triad of microangiopathic hemolytic anemia (MAHA), thrombocytopenia, and acute kidney injury (AKI); the main cause of multi-organ failure is related to thrombotic microangiopathy (TMA). Atypical HUS (aHUS) is a disease of uncontrolled complement activation associated with a high mortality rate and most cases progress to end-stage renal disease. About 50% of patients with this syndrome carry mutations in genes that encode complement proteins. Also, aHUS constitutes an over-activation of the complement pathway which is either inherited, acquired, or both...
March 23, 2017: Curēus
https://www.readbyqxmd.com/read/28439287/rattlesnake-crotalus-molossus-nigrescens-venom-induces-oxidative-stress-on-human-erythrocytes
#13
David Meléndez-Martínez, Juan Manuel Muñoz, Guillermo Barraza-Garza, Martha Sandra Cruz-Peréz, Ana Gatica-Colima, Emilio Alvarez-Parrilla, Luis Fernando Plenge-Tellechea
BACKGROUND: Globally, snake envenomation is a well-known cause of death and morbidity. In many cases of snakebite, myonecrosis, dermonecrosis, hemorrhage and neurotoxicity are present. Some of these symptoms may be provoked by the envenomation itself, but others are secondary effects of the produced oxidative stress that enhances the damage produced by the venom toxins. The only oxidative stress effect known in blood is the change in oxidation number of Fe (from ferrous to ferric) in hemoglobin, generating methemoglobin but not in other macromolecules...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28439081/long-lasting-neutralization-of-c5-by-sky59-a-novel-recycling-antibody-is-a-potential-therapy-for-complement-mediated-diseases
#14
Taku Fukuzawa, Zenjiro Sampei, Kenta Haraya, Yoshinao Ruike, Meiri Shida-Kawazoe, Yuichiro Shimizu, Siok Wan Gan, Machiko Irie, Yoshinori Tsuboi, Hitoshi Tai, Tetsushi Sakiyama, Akihisa Sakamoto, Shinya Ishii, Atsuhiko Maeda, Yuki Iwayanagi, Norihito Shibahara, Mitsuko Shibuya, Genki Nakamura, Takeru Nambu, Akira Hayasaka, Futa Mimoto, Yuu Okura, Yuji Hori, Kiyoshi Habu, Manabu Wada, Takaaki Miura, Tatsuhiko Tachibana, Kiyofumi Honda, Hiroyuki Tsunoda, Takehisa Kitazawa, Yoshiki Kawabe, Tomoyuki Igawa, Kunihiro Hattori, Junichi Nezu
Dysregulation of the complement system is linked to the pathogenesis of a variety of hematological disorders. Eculizumab, an anti-complement C5 monoclonal antibody, is the current standard of care for paroxysmal nocturnal hemoglobinuria (PNH) and atypical hemolytic uremic syndrome (aHUS). However, because of high levels of C5 in plasma, eculizumab has to be administered biweekly by intravenous infusion. By applying recycling technology through pH-dependent binding to C5, we generated a novel humanized antibody against C5, SKY59, which has long-lasting neutralization of C5...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28438876/thrombotic-microangiopathy-following-chemotherapy-with-s-1-and-cisplatin-in-a-patient-with-gastric-cancer-a-case-report
#15
Jun Muto, Hiroshi Kishimoto, Yasuo Kaizuka, Mitsuru Kinjo, Hidefumi Higashi, Fumiaki Kishihara
BACKGROUND: Thrombotic microangiopathy (TMA) represents a spectrum of serious disorders characterized by occlusive microvascular thrombosis, thrombocytopenia and end-organ damage. TMA is associated with a broad range of conditions and is also a well-described complication of both cancer and its treatment. CASE REPORT: A 77-year-old Japanese woman underwent S-1 and cisplatin chemotherapy for treatment of advanced gastric cancer with multiple lymph node and liver metastases...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28438820/use-of-an-argatroban-based-purge-solution-in-a-percutaneous-ventricular-assist-device
#16
Benjamin Laliberte, Brent N Reed
PURPOSE: The use of an argatroban-based percutaneous ventricular assist device (pVAD) purge solution in a patient with suspected heparin-induced thrombocytopenia (HIT) is described. SUMMARY: A 70-year-old woman in cardiogenic shock was admitted to a coronary care unit after being discovered unresponsive at home. A transthoracic echocardiogram revealed a low ejection fraction and findings consistent with takotsubo cardiomyopathy. Administration of multiple inotropes and vasopressors was initially required for hemodynamic support...
May 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28437723/clinical-course-and-disease-burden-in-patients-with-paroxysmal-nocturnal-hemoglobinuria-by-hemolytic-status
#17
Mustafa N Yenerel, Petra Muus, Amanda Wilson, Jeff Szer
Disease characteristics of patients enrolled in the International PNH Registry were assessed during two follow-up periods based on hemolytic status while untreated with eculizumab: Non-hemolytic cohort: follow-up time defined as time from disease start until last reported untreated lactate dehydrogenase (LDH) value <1.5×upper limit normal (ULN); Hemolytic cohort: follow-up time defined as time from LDH ≥1.5×ULN at or post-disease start, to most recent untreated follow-up. A total of 1012 patients met criteria for the Non-hemolytic cohort and 1565 patients for the Hemolytic cohort; median (min, max) years of follow-up were 2...
March 27, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28437232/epidemiological-physiological-and-molecular-characteristics-of-a-brazilian-collection-of-carbapenem-resistant-acinetobacter-baumannii-and-pseudomonas-aeruginosa
#18
Vanessa Cordeiro Dias, Juliana Alves Resende, André Netto Bastos, Lucas Quinet De Andrade Bastos, Victor Quinet De Andrade Bastos, Ricardo Villela Bastos, Cláudio Galuppo Diniz, Vânia Lúcia Da Silva
Nonfermenting Gram-negative bacteria such as Pseudomonas aeruginosa and Acinetobacter baumannii are widespread in the environment and are increasingly associated with nosocomial infections, often associated with multidrug-resistance phenotypes. This study aimed to evaluate epidemiological, physiological, and molecular characteristics of carbapenem resistance in P. aeruginosa and A. baumannii. In total, 63 nonreplicated strains (44 A. baumannii and 19 P. aeruginosa) were isolated from hospitalized patients. Antimicrobial resistance patterns, biocide tolerance, oxidative stress, hemolytic activity, and biofilm formation were assessed...
February 24, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28437166/virus-like-particles-of-mrna-with-artificial-minimal-coat-proteins-particle-formation-stability-and-transfection-efficiency
#19
Shehrazade Jekhmane, Rob de Haas, Omar Paulino da Silva Filho, Alexander H van Asbeck, Marco Emanuele Favretto, Armando Hernandez Garcia, Roland Brock, Renko de Vries
RNA has enormous potential as a therapeutic, yet, the successful application depends on efficient delivery strategies. In this study, we demonstrate that a designed artificial viral coat protein, which self-assembles with DNA to form rod-shaped virus-like particles (VLPs), also encapsulates and protects mRNA encoding enhanced green fluorescent protein (EGFP) and luciferase, and yields cellular expression of these proteins. The artificial viral coat protein consists of an oligolysine (K12) for binding to the oligonucleotide, a silk protein-like midblock S10 = (GAGAGAGQ)10 that self-assembles into stiff rods, and a long hydrophilic random coil block C that shields the nucleic acid cargo from its environment...
February 21, 2017: Nucleic Acid Therapeutics
https://www.readbyqxmd.com/read/28437027/reprogrammable-assembly-of-molecular-motor-on-solid-surfaces-via-dynamic-bonds
#20
Li Yu, Jian Sun, Qian Wang, Yan Guan, Le Zhou, Jingxuan Zhang, Lanying Zhang, Huai Yang
Controllable assembly of molecular motors on solid surfaces is a fundamental issue for providing them to perform physical tasks. However, it can hardly be achieved by most previous methods due to their inherent limitations. Here, a general strategy is designed for the reprogrammable assembly of molecular motors on solid surfaces based on dynamic bonds. In this method, molecular motors with disulfide bonds can be remotely, reversibly, and precisely attached to solid surfaces with disulfide bonds, regardless of their chemical composition and microstructure...
April 24, 2017: Small
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