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https://www.readbyqxmd.com/read/29928174/characteristics-of-extracellular-vesicles-in-red-blood-concentrates-change-with-storage-time-and-blood-manufacturing-method
#1
Ruqayyah J Almizraq, Jelena L Holovati, Jason P Acker
Background: Extracellular vesicles (EVs) in blood products are potential effectors of inflammation and coagulation after transfusion. The aim of this study was to assess the impact of different blood manufacturing methods and duration of hypothermic storage on the EV subpopulations in relation to other in vitro quality parameters of red blood cell concentrate (RCC) products. Methods: RCCs were produced using whole blood filtration (WBF) or red cell filtration (RCF) (n = 12/method), refrigerated for 43 days, and evaluated for EV size profile and concentration, red cell deformability, ATP and 2,3-DPG, hemolysis, and hematological indices...
May 2018: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/29864792/rejuvenation-of-allogenic-red-cells-benefits-and-risks
#2
REVIEW
H Aujla, M Woźniak, T Kumar, G J Murphy
BACKGROUND AND OBJECTIVES: To review preclinical and clinical studies that have evaluated the effects of red cell rejuvenation in vivo and in vitro and to assess the potential risks and benefits from their clinical use. MATERIALS AND METHODS: A systematic review and narrative synthesis of the intervention of red cell rejuvenation using a red cell processing solution containing inosine, pyruvate, phosphate and adenine. Outcomes of interest in vitro were changes in red cell characteristics including adenosine triphosphate (ATP), 2,3-diphosphoglycerate (2,3-DPG), deformability and the accumulation of oxidized lipids and other reactive species in the red cell supernatant...
June 4, 2018: Vox Sanguinis
https://www.readbyqxmd.com/read/29792821/exhaustive-exercise-induced-oxidative-stress-alteration-of-erythrocyte-oxygen-release-capacity
#3
Yanlian Xiong, Yanlei Xiong, Yueming Wang, Yajin Zhao, Yaojin Li, Yang Ren, Ruofeng Wang, Mingzi Zhao, Yitong Hao, Haibei Liu, Xiang Wang
The aim of the present study is to explore the effect of exhaustive running exercise (ERE) in the oxygen release capacity of rat erythrocytes. Rats were divided into sedentary control (C), moderate running exercise (MRE) and exhaustive running exercise groups. The thermodynamics and kinetics properties of the erythrocyte oxygen release process of different groups were tested. We also determined the degree of band-3 oxidative and phosphorylation, anion transport activity and carbonic anhydrase isoform II(CAII) activity...
May 24, 2018: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29686899/pulmonary-arterial-hypertension-specific-therapy-in-patients-with-combined-post-and-precapillary-pulmonary-hypertension
#4
Hassan Alfraidi, Sultan Qanash, Zoheir Bshouty
Background: Specific therapy for patients with PAH is associated with good outcomes. Little is known about the effect of this treatment in patients with Cpc-PH (PAPm ≥ 25 mmHg, PAWP > 15 mmHg, DPG ≥ 7 mmHg, and/or PVR > 3 WU). This study evaluates the outcome of treating patients with Cpc-PH using PAH specific therapy. Methods: The primary outcome was survival. Secondary outcomes were WHO functional class and 6-minute walk distance (6-MWD). Results: Twenty-six patients with Cpc-PH (half with VHD and half with HF) received PAHST...
2018: Pulmonary Medicine
https://www.readbyqxmd.com/read/29679163/paenibacillus-panacihumi-sp-nov-a-potential-plant-growth-promoting-bacterium-isolated-from-ginseng-cultivated-soil
#5
Chun-Gon Kim, Jong-Pyo Kang, Yue Huo, Mohan Chokkalingam, Yeon-Ju Kim, Dong-Hyun Kim, Deok-Chun Yang
A novel bacterium, designated DCY114T , was isolated from ginseng-cultivated soil in Gochang-gun, Republic of Korea. This isolate was assigned to the genus Paenibacillus and is closely related to Paenibacillus amylolyticus NRRL NRS-290T (98.3%), P. dongdonensis KUDC0114T (98.0%), P. tylopili MK2T (97.9%), P. tundrae A10bT (97.8%), and P. xylanexedens B22aT (97.5%) based on 16S rRNA gene sequence analysis. Strain DCY114T is a Gram-reaction positive, catalase and oxidase positive, facultatively aerobic rod that is motile by peritrichous flagella...
April 20, 2018: Archives of Microbiology
https://www.readbyqxmd.com/read/29620504/polaromonas-ginsengisoli-sp-nov-isolated-from-ginseng-field-soil
#6
Kang Duk Choi, Muhammad Zubair Siddiqi, Qingmei Liu, Jung Hun Jo, Se Yoon Chun, Gyu-Min Choi, Sang Young Kim, Soon Youl Lee, Wan-Taek Im
A Gram-reaction-negative, strictly aerobic, milky-white and rod-shaped bacterium (designated Gsoil 115T ) isolated from ginseng field soil was characterized by a polyphasic approach to clarify its taxonomic position. Strain Gsoil 115T grew optimally at 30 °C and at pH 7.0 on Reasoner's 2A agar medium. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain Gsoil 115T belongs to the genus Polaromonas and was most closely related to Polaromonaseurypsychrophila B717-2T (98.6 %), Polaromonasvacuolata 34-PT (98...
May 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29156555/identification-of-major-flavone-c-glycosides-and-their-optimized-extraction-from-cymbidium-kanran-using-deep-eutectic-solvents
#7
Kyung Min Jeong, Misuk Yang, Yan Jin, Eun Mi Kim, Jaeyoung Ko, Jeongmi Lee
Cymbidium kanran, an orchid exclusively distributed in Northeast Asia, has been highly valued as a decorative plant and traditional herbal medicine. Here, C. kanran extracts were prepared in 70% aqueous methanol using ultrasound-assisted extraction (UAE) and subjected to liquid chromatography-photodiode array detection and ultra-high performance liquid chromatography-quadrupole-time-of-flight-mass spectrometry analysis, which were used for quantitative and qualitative analysis, respectively. It was found that the extracts were rich in flavone C-glycosides including vicenin-2, vicenin-3, schaftoside, vitexin, and isovitexin...
November 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29148140/haemodynamic-effects-of-an-acute-vasodilator-challenge-in-heart-failure-patients-with-reduced-ejection-fraction-and-different-forms-of-post-capillary-pulmonary-hypertension
#8
Stefano Ghio, Gabriele Crimi, Pier Luigi Temporelli, Egidio Traversi, Maria Teresa La Rovere, Antonia Cannito, Dario Vizza, Laura Scelsi, Claudia Raineri, Marco Guazzi, Luigi Oltrona Visconti
AIMS: The most recent European guidelines have proposed new definitions of pulmonary hypertension (PH) in left heart disease, to better approach the characteristics required to reflect the presence of pulmonary vascular disease. The purpose of this study was to assess whether different haemodynamic definitions of post-capillary PH imply a different reversibility of PH in response to acute vasodilator administration in heart failure patients with reduced ejection fraction and PH (HFrEF-PH)...
April 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29134941/bacillus-marinisedimentorum-sp-nov-isolated-from-marine-sediment
#9
Ling-Yun Guo, Si-Kai Ling, Chang-Ming Li, Guan-Jun Chen, Zong-Jun Du
A novel Gram-stain-positive, motile and facultatively anaerobic strain, designated NC2-31T , was isolated from sediment from the coast of Weihai, PR China. Optimal growth occurred at 37 °C, pH 7.5 and with 2.0-3.0 % (w/v) NaCl. MK-7 was the major respiratory quinone. Meso-diaminopimelic acid was a diagnostic diamino acid in the peptidoglycan. The major polar lipids of NC2-31T were diphosphatidylglycerol (DPG), phosphatidylglycerol (PG) and phosphatidylethanolamine (PE). The genomic DNA G+C content of the strain was 46...
January 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29039306/paenibacillus-azotifigens-sp-nov-a-novel-nitrogen-fixing-bacterium-isolated-from-paddy-soil
#10
Muhammad Zubair Siddiqi, Gyu-Min Choi, Kang Duk Choi, Wan-Taek Im
A nitrogen-fixing bacterium, designated NF2-4-5T , was isolated from a paddy soil in Anseong City, Korea. Cells of strain NF2-4-5T were Gram-staining-positive, motile rods and aerobic. Phylogenetic analysis based on 16S rRNA gene sequence comparison revealed that the strain formed a distinct lineage within the genus Paenibacillus and was closely related to Paenibacillus graminis RSA19T (98.7 %), Paenibacillus jilunlii Be17T (98.6 %), Paenibacillus salinicaeni LAM0A28T (98.6 %) and Paenibacillus riograndensis SBR5T (98...
December 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28981425/blood-quality-diagnostic-device-detects-storage-differences-between-donors
#11
Vivek P Jani, Shawn Mailo, Ali Athar, Alfredo Lucas, Alexander T Williams, Pedro Cabrales
In 2013, nearly 15 million units of banked blood were transfused in the United States of America alone. Blood shortages are expected to increase globally. Donated blood is not equal due to differences in quality and deterioration rate. There are no methods to detect time-dependent biochemical and biophysical changes of red blood cells (RBCs) or the deterioration rate of donated RBCs. Nine randomly selected RBC units collected by the San Diego Blood Bank were examined for interdonor variability over six weeks of storage...
December 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28935251/leachable-diphenylguanidine-from-rubber-closures-used-in-pre-filled-syringes-a-case-study-to-understand-solid-and-solution-interactions-with-oxytocin
#12
Ahmed S Zidan, Sabir M Aqueel, Alaadin Alayoubi, Adil Mohammad, Jinhui Zhang, Ziyaur Rahman, Patrick Faustino, Richard T Lostritto, Muhammad Ashraf
Leachables derived from multi-component drug-device syringe systems can result in changes to the quality of drug products. Diphenylguanidine (DPG), a leachable released from styrene butadiene rubber syringe plungers, interacts with Oxytocin to form protein-adducts. This study investigated the mechanism and kinetics of this interaction in both solid and solution states through in-vitro tests and spectroscopic methods For solid state interaction, the protein-adducts with DPG were characterized using SEM, XRD, DSC, FTIR, 13 C ss NMR, and dissolution analysis...
October 30, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28910585/analysis-of-glycols-glycol-ethers-and-other-volatile-organic-compounds-present-in-household-water-based-hand-pump-sprays
#13
Tsuyoshi Kawakami, Kazuo Isama, Toshiko Tanaka-Kagawa, Hideto Jinnno
The aim of this investigation is to clarify the types and concentrations of VOCs present in various commercial household water-based hand pump spray products used in Japan, and to estimate their average concentrations in indoor air when the spray product is used. We selected glycol and glycol ethers as the main target compounds, as these chemicals were detected at high frequencies and concentrations in a national survey of Japanese indoor air pollution. The extraction of these chemicals using graphite carbon cartridges was examined, with good recoveries and reproducibilities being obtained...
November 10, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28879839/ramlibacter-rhizophilus-sp-nov-isolated-from-rhizosphere-soil-of-national-flower-mugunghwa-from-south-korea
#14
Zheng-Fei Yan, Huan Trinh, Gabriela Moya, Pei Lin, Chang-Tian Li, MooChang Kook, Tae-Hoo Yi
A Gram-negative, aerobic, non-motile, long rods or coccoid without flagellum strain, designated THG-YS3.2.7(T), was isolated from therhizosphere soil of a Mugunghwa flower collected from Kyung Hee University, Yongin, South Korea. Growth occurred at 10-40 °C (optimum 28-37 °C), at pH 6-8 (optimum 7) and at 0-5 % NaCl (optimum 1 %). The predominant ubiquinone was ubiquinone 8 (Q-8). The major cellular fatty acids were C10 : 0, C10 : 0 3OH, C16 : 0, C17 : 0, C17 : 0 cyclo, C18 : 0, C18 : 3ω6c (6,9,12), summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and summed feature 8 (C18 : 1 ω7c and/or C18 : 1ω6c)...
October 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28851819/o2-binding-and-co2-sensitivity-in-hemoglobins-of-subterranean-african-mole-rats
#15
Roy E Weber, Jennifer U M Jarvis, Angela Fago, Nigel C Bennett
Inhabiting deep and sealed subterranean burrows, mole rats exhibit a remarkable suite of specializations, including eusociality (living in colonies with single breeding queens), extraordinary longevity, cancer immunity and poikilothermy, and extreme tolerance of hypoxia and hypercapnia.With little information available on adjustments in hemoglobin (Hb) function that may mitigate the impact of exogenous and endogenous constraints on the uptake and internal transport of O2, we measured hematological characteristics, as well as Hb-O2 binding affinities and their sensitivities to pH (Bohr effect), CO2, temperature and 2,3 diphosphoglycerate (DPG, the major allosteric modulator of Hb-O2 affinity in the red cells) in four social and two solitary species of African mole rats (family Bathyergidae) originating from different biomes and soil types across Central and Southern Africa...
August 29, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28801583/effect-of-x-ray-irradiation-on-hepatocarcinoma-cells-and-erythrocytes-in-salvaged-blood
#16
Feng-Jiang Zhang, Jin-Ting Yang, Li-Hui Tang, Wen-Na Wang, Kai Sun, Yue Ming, Kanhar Ghulam Muhammad, Yin-Fei Zheng, Min Yan
The broad clinical acceptance of intraoperative blood salvage and its applications in cancer surgery remain controversial. Until now, a method that can safely eliminate cancer cells while preserving erythrocytes does not exist. Here, we investigated whether X-ray generated from linear accelerator irradiation at a certain dose can kill hepatocarcinoma cells while preserving erythrocytes. HepG2, SK-Hep1 or Huh7 cells were mixed into the aliquots of erythrocytes obtained from healthy volunteers. After the mixed cells were exposed to 30 Gy and 50 Gy X-rays irradiation, the viability, clonogenicity, DNA synthesis and tumorigenicity of the tumor cells were determined by the MTT assay, plate colony formation, 5-ethynyl-2'-deoxyuridine incorporation, and subcutaneous xenograft implantation into immunocompromised mice...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28711785/a-fit-for-purpose-lc-ms-ms-method-for-the-simultaneous-quantitation-of-atp-and-2-3-dpg-in-human-k2edta-whole-blood
#17
Hyeryun Kim, Penelope Kosinski, Charles Kung, Lenny Dang, Yue Chen, Hua Yang, Yuan-Shek Chen, Jordyn Kramer, Guowen Liu
Many hemolytic anemias results in major metabolic abnormalities: two common metabolite abnormalities include increased levels of 2,3-diphosphoglycerate (2,3-DPG) and decreased levels of adenosine triphosphate (ATP). To better monitor the concentration changes of these metabolites, the development of a reliable LC-MS/MS method to quantitatively profile the concentrations of 2, 3-DPG and ATP in whole blood is essential to understand the effects of investigational therapeutics. Accurate quantification of both compounds imposes great challenges to bioanalytical scientists due to their polar, ionic and endogenous nature...
September 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28653084/bacillus-alcaliphilum-sp-nov-a-bacterium-isolated-from-a-soda-lake
#18
Vishnuvardhan Reddy Sultanpuram, Thirumala Mothe, Sasikala Chintalapati, Venkata Ramana Chintalapati
Two novel (14BT and 7B) Gram-stain-positive, rod-shaped, motile and endospore-forming bacterial strains were isolated from Lonar soda lake, India. Based on 16S rRNA gene sequence analysis, the strains 14BT and 7B were identified as belonging to the class Firmibacteria and were most closely related to Bacillus halodurans LMG 7121T (99.7 and 99.8%, respectively), Bacillus okuhidensis LMG 22468T (99.1 and 99.2%, respectively) and other members in the genus Bacillus (<97.0%). However, the DNA-DNA relatedness studies indicated that the strains 14BT and 7B were distantly related to B...
November 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28598831/rat-red-blood-cell-storage-lesions-in-various-additive-solutions
#19
Vivek P Jani, Ozlem Yalcin, Alexander T Williams, Mark A Popovsky, Pedro Cabrales
BACKGROUND: Small rodent models are routinely used to evaluate the safety and efficacy of blood transfusions. Limited comprehensive literature exists about effect of different storage solutions in rat red blood cells (RBCs) characteristics. RBCs undergo time dependent biochemical and biophysical changes during storage known as hypothermic storage lesions (HSLs). OBJECTIVE: This study evaluates the effects of RBC additive solutions (AS) during storage of rat RBCs...
2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28471090/the-prognostic-importance-of-the-diastolic-pulmonary-gradient-transpulmonary-gradient-and-pulmonary-vascular-resistance-in-patients-undergoing-transcatheter-aortic-valve-replacement
#20
Nathan W Brunner, Su Fei Yue, Dion Stub, Jian Ye, Anson Cheung, Jonathon Leipsic, Sandra Lauck, Danny Dvir, Gidon Perlman, Nay Htun, Peter Fahmy, Roshan Prakash, Lim Eng, Kevin Ong, Michael Tsang, John A Cairns, John G Webb, David A Wood
OBJECTIVES: To evaluate the association between markers of precapillary pulmonary hypertension (PH) and survival in transcatheter aortic valve replacement (TAVR). BACKGROUND: The importance of precapillary PH has been sparsely investigated in patients undergoing TAVR. It may prove an important risk factor for poor outcomes. METHODS: We identified patients at our institution undergoing TAVR with a baseline right heart catheterization (RHC) demonstrating PH...
December 1, 2017: Catheterization and Cardiovascular Interventions
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