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Hemolysis

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https://www.readbyqxmd.com/read/29777805/design-of-carboxymethyl-chitosan-based-heparin-mimicking-cross-linked-beads-for-safe-and-efficient-blood-purification
#1
Yilin Wang, Xuelian Huang, Chao He, YuPei Li, Weifeng Zhao, Changsheng Zhao
Safe and efficient carboxymethyl chitosan (CMC)-based heparin-mimicking cross-linked beads (CMC/PAMPS) as adsorbents for the clearance of low-density lipoprotein-cholesterol (LDL-c) in blood purification were prepared through hydrogen bonding interactions followed with in situ cross-linking with 2-acrylamido-2-methyl-1-propanesulfonicacid (AMPS). Fourier transform infrared spectra (FTIR), two-dimensional correlation FTIR spectroscopy (2D IR), thermal gravimetric analysis (TGA) and energy dispersive X-ray spectrometer (EDS) demonstrated the successful synthesis of CMC/PAMPS beads...
May 16, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29776448/anti-plasmodial-activities-of-combretum-molle-combretaceae-zwoo-seed-extract-in-swiss-albino-mice
#2
Merkin Anato, Tsige Ketema
OBJECTIVE: Objective of the study was to evaluate in vivo anti-plasmodial activities of Combretum molle seed extract. METHODS: As a standard protocol, initially the acute toxicity of the plant seed extract was checked following single administration of crude seed extract of the plant at doses 500, 1000 and 2000 mg/kg. This was followed by evaluation of anti-plasmodial activity of crude seed extract of the plant following a 4 days suppressive test. RESULTS: In acute toxicity study sign of toxicity was not observed...
May 18, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29775819/facile-synthesis-of-yolk-shell-structured-monodisperse-mesoporous-organosilica-nanoparticles-by-a-mild-alkalescent-etching-approach
#3
Jun Tao, Meng Dang, Xiaodan Su, Qing Hao, Junjie Zhang, Xiaobo Ma, Guangming Lu, Yunlei Zhang, Ying Tian, Lixing Weng, Zhaogang Teng, Lianhui Wang
In the work, yolk-shell structured mesoporous organosilica nanoparticles (YSMONs) are successfully prepared by a mild alkalescent etching approach. The method is very convenient, in which mesostructured organosilica nanospheres are directly transformed into yolk-shell structures after etching with mild alkalescent solution (e.g. sodium carbonate solution). The prepared YSMONs have ethane-bridged frameworks, a monodisperse diameter (320 nm), a large pore volume (1.0 cm3  g-1 ), a uniform mesopore (2.4 nm) and a high surface area (1327 m2  g-1 )...
May 15, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29774602/pancreas-transplantation-using-compatible-but-non-identical-abo-blood-group-donors
#4
Santosh Nagaraju, Richard S Mangus, John A Powelson, Jonathan A Fridell
METHODS: A review of all pancreas transplants from a single institution from 01/2003 to 07/2016 (n=606) revealed 41 recipients of a NIC donor pancreas which were matched for age, race, gender, year and type of transplant with 41 ABO identical cases. Groups were compared for allograft survival, incidence of acute cellular rejection (ACR), length of hospital stay, 3-month readmissions and transfusion requirements. Serum haptoglobin and Lactate dehydrogenase were used to identify hemolysis in patients requiring repeated transfusions without overt blood loss...
May 17, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29771863/upshaw-schulman-syndrome-with-c-2728c-t-mutation-in-adamts13-gene
#5
Shahzadi Resham, Zehra Fadoo, Bushra Moiz
Congenital thrombotic thrombocytopenic purpura is a rare autosomal recessive disorder presenting with hemolytic anemia, thrombocytopenia, micro vascular thrombosis, and end organ damage. Here, we present a case of a 7-year-old girl having recurrent neonatal hemolysis, developmental delay, frequent seizures, and thrombocytopenia. Characteristic clinical picture and gene sequencing of a disintegrin and metalloproteinase with thrombospondin motifs 13 confirmed the diagnosis of Upshaw-Schulman syndrome. She was treated successfully with plasma infusion...
May 16, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29767893/-hemolytic-anemia-in-cancer
#6
Maria Anastasiou, Yves Chalandon, Sandro Anchisi
Hemolysis (from the Greek word: hemolysis: hema = blood + lysis = liberation) is a medical term that describes red blood cell's destruction by mechanisms of lysis of the membrane. An hemolytic anemia occurs when excessive destruction of red blood cells overwhelms bone marrow's capacity of regeneration. Although anemia is frequently associated with an oncologic disease, hemolytic anemia is rarely diagnosed in oncologic patients. Consequently, a massive hemolysis can be quickly deleterious and often fatal. An early diagnosis can improve survival and can be made with inexpensive tests...
May 16, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29767296/evaluating-the-antimicrobial-apoptotic-and-cancer-cell-gene-delivery-properties-of-protein-capped-gold-nanoparticles-synthesized-from-the-edible-mycorrhizal-fungus-tricholoma-crassum
#7
Arpita Basu, Sarmishtha Ray, Supriyo Chowdhury, Arnab Sarkar, Deba Prasad Mandal, Shamee Bhattacharjee, Surekha Kundu
Biosynthesis of gold nanoparticles of distinct geometric shapes with highly functional protein coats without additional capping steps is rarely reported. This study describes green synthesis of protein-coated gold nanoparticles for the first time from the edible, mycorrhizal fungus Tricholoma crassum (Berk.) Sacc. The nanoparticles were of the size range 5-25 nm and of different shapes. Spectroscopic analysis showed red shift of the absorption maxima with longer reaction period during production and blue shift with increase in pH...
May 16, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29766451/early-hemolysis-within-human-intracerebral-hematomas-an-mri-study
#8
Ran Liu, Haijiao Li, Ya Hua, Richard F Keep, Jiangxi Xiao, Guohua Xi, Yining Huang
Early hemolysis occurs in the hematoma within 24 h in rat model of intracerebral hemorrhage (ICH). The present study investigated the prevalence of early hemolysis in ICH patients using MRI and the relationship between early hemolysis and perihematomal edema. Thirty ICH patients were prospectively enrolled within 24 h of onset. All patients had cranial CT on admission. Cranial MRI with T2 FLAIR-weighted imaging and T2*-weighted imaging were undertaken at days 1 and 14. The evolution of a non-hypointense lesion on T2*-weighted images and the relationship between the volume of that non-hypointense lesion and perihematomal edema volume were investigated...
May 15, 2018: Translational Stroke Research
https://www.readbyqxmd.com/read/29764224/hemolysis-may-cause-false-negative-results-and-underdiagnosis-of-celiac-disease-when-measuring-anti-tissue-transglutaminase-antibodies-in-serum-by-immunoassays
#9
Freja Eriksen, Jutarat Charoenpatrawut, Sumbul Zaman, Isa Neimann Thomasen, Lise Bathum
No abstract text is available yet for this article.
May 15, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29763772/graphene-kaolin-composite-sponge-for-rapid-and-riskless-hemostasis
#10
Yuping Liang, Congcong Xu, Guofeng Li, Tianchi Liu, Jun F Liang, Xing Wang
Kaolin is an effective and safe hemostatic agent for hemostasis. However, its ontic powder is difficult to use in actual practice. To develop a wieldy and powerful hemostat, composite strategy is usually a good choice. Herein, we developed a graphene-kaolin composite sponge (GKCS), synthesized with graphene oxide sheets, linker molecules and kaolin powders through a facile hydrothermal reaction. SEM observations support that GKCS has a porous structure, and EDS mapping further confirms that kaolin powders are embedded in graphene sheets...
May 8, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29763574/how-low-can-you-go-analytical-performance-of-five-automated-testosterone-immunoassays
#11
Sonia L La'ulu, Kimberly J Kalp, Joely A Straseski
BACKGROUND: Testosterone is commonly measured using immunoassays, yet concerns with the accuracy and quality of testing by these methods exist, particularly for low testosterone concentrations. Study objectives were to evaluate selective performance characteristics, including functional sensitivity (FS), of 5 automated immunoassays for total testosterone. METHODS: FS, imprecision, assay interference, limit of blank, linearity, and accuracy were assessed using the Abbott ARCHITECT i2000SR , SIEMENS ADVIA Centaur and IMMULITE 2000, Beckman Coulter DxI 800, and Roche MODULAR E170...
May 12, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29761649/polyphenol-poloxamer-self-assembled-supramolecular-nanoparticles-for-tumor-nirf-pet-imaging
#12
Xinyu Wang, Junjie Yan, Donghui Pan, Runlin Yang, Lizhen Wang, Yuping Xu, Jie Sheng, Yuanyuan Yue, Qianhuan Huang, Yanting Wang, Rongrong Wang, Min Yang
Self-assembled supramolecular nanoparticles have remarkable benefits in bioimaging and drug delivery. Here it is first reported that polyphenol and poloxamer self-assemble supramolecular nanoparticles (PPNPs). PPNPs are fabricated by multivalent hydrogen bonding between tannic acid and Pluronic F-127 together with hydrophobic interactions of poly(propylene oxide) chains, to be applied in tumor near-infrared fluorescence (NIRF) imaging and positron emission tomography (PET) imaging. With near-infrared fluorescent dyes such as IR780 encapsulated via hydrophobic interactions, PPNPs are used in NIRF imaging...
May 14, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29761476/comparison-of-materno-fetal-predictors-and-short-term-outcomes-between-early-and-late-onset-pre-eclampsia-in-the-low-income-setting-of-douala-cameroon
#13
Charlotte Tchente Nguefack, Annabel Ako Mangwi, Anastase Dzudie Tamdja, Théophile Nana Njamen, Paul Nkemtendong Tolefack, Emile Mboudou
OBJECTIVE: To describe and compare materno-fetal predictors and short-term outcomes of early onset pre-eclampsia (EOPE) and late onset pre-eclampsia (LOPE) in Douala, Cameroon. METHODS: The present prospective hospital-based cross-sectional study included women with pre-eclampsia attending obstetric units at four hospitals in Douala between December 1, 2016, and April 30, 2017. To determine maternal predictors, sociodemographic and medical data were recorded using a pretested questionnaire...
May 14, 2018: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29760411/paenialvin-a-d-four-peptide-antibiotics-produced-by-paenibacillus-alvei-dsm-29
#14
Jia Meng, Zheng Zhong, Pei-Yuan Qian
Four peptide antibiotics, named paenialvin A-D, were isolated from Paenibacillus alvei DSM 29. Mass spectrum analysis determined the molecular masses of paenialvin A-D to be 1891, 1875, 1877, and 1923 Da, respectively. Tandem mass spectra and nuclear magnetic resonance (NMR) were used to elucidate their chemical structures. Paenialvin A-D showed antimicrobial activity against most strains that were tested, including methicillin-resistant Staphalococcus aureus, Staphylococcus aureus, Bacillus subtilis, Loktanella hongkongensis, Escherichia coli, and Pseudomonas aeruginosa...
May 14, 2018: Journal of Antibiotics
https://www.readbyqxmd.com/read/29757121/management-of-electrolyte-disorders-also-the-method-matters
#15
Joris Richard Delanghe
INTRODUCTION: For the last few decades, electrolyte determinations in plasma or serum are carried out by reliable potentiometric methods. In recent years, a marked technical evolution has taken place, where the clinical analysis of common analytes (e.g. electrolytes) is partly moving from centralised clinical core laboratories to near-patient point-of-care testing. METHODS: As the measuring principle used by point-of-care testing markedly differs from the one used in core laboratories, sodium results are not always interchangeable in critically ill patients due to the different sensitivity of the analytical methods for the electrolyte exclusion effect...
May 14, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29752090/one-step-preparation-of-polymeric-maltitol-particles-from-a-sugar-molecule-maltitol-for-biomedical-applications
#16
Nurettin Sahiner
Here, a facile method for the preparation of polymeric particles from a sugar molecule, maltitol (ML) in single step was reported via microemulsion polymerization/crosslinking technique with a high yield, 89 ± 6%. Furthermore, poly(Maltitol) (p(ML)) particles were chemically modified to induce different physicochemical characteristic using different anionic and cationic modifying agents such as taurine (TA) and diethylenetriamine (DETA) to prepare m-p(ML)/TA and m-p(ML)/DETA. The blood compatibility of the p(ML) particles and their modified forms were tested with fresh blood, and found that p(ML) and m-(ML)/DETA particles are blood compatible with about 5% hemolysis, and above 80% blood clotting indices...
August 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/29751921/nutraceutical-potential-of-hemp-cannabis-sativa-l-seeds-and-sprouts
#17
Stefania Frassinetti, Eleonora Moccia, Leonardo Caltavuturo, Morena Gabriele, Vincenzo Longo, Lorenza Bellani, Gianluca Giorgi, Lucia Giorgetti
In this study the antioxidant effect of Cannabis sativa L. seeds and sprouts (3 and 5 days of germination) was evaluated. Total polyphenols, flavonoids and flavonols content, when expressed on dry weight basis, were highest in sprouts; ORAC and DPPH (in vitro assays), CAA-RBC (cellular antioxidant activity in red blood cells) and hemolysis test (ex vivo assays) evidenced a good antioxidant activity higher in sprouts than in seeds. Untargeted analysis by high resolution mass spectrometry in negative ion mode allowed the identification of main polyphenols (caffeoyltyramine, cannabisin A, B, C) in seeds and of ω-6 (linoleic acid) in sprouts...
October 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29750685/predicting-plasma-free-hemoglobin-levels-in-patients-due-to-medical-device-related-hemolysis
#18
David M Saylor, Paul W Buehler, Ronald P Brown, Richard A Malinauskas
Blood passage through medical devices can cause hemolysis and increased levels of plasma-free hemoglobin (pfH) that may lead to adverse effects such as vasoconstriction and renal tubule injury. Although the hemolytic potential of devices is typically characterized in vitro using animal blood, the results can be impacted by various blood parameters, such as donor species. Moreover, it is unclear how to relate measured in vitro hemolysis levels to clinical performance because pfH accumulation in vivo depends on both hemolysis rate and availability of plasma haptoglobin (Hpt) that can bind and safely eliminate pfH...
May 7, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29748832/optimization-and-evaluation-of-lipid-emulsions-for-intravenous-co-delivery-of-artemether-and-lumefantrine-in-severe-malaria-treatment
#19
Yinxian Yang, Hailing Gao, Shuang Zhou, Xiao Kuang, Zhenjie Wang, Hongzhuo Liu, Jin Sun
Parenteral therapy for severe and complicated malaria is necessary, but currently available parenteral antimalarials have their own drawbacks. As for recommended artemisinin-based combination therapy, antimalarial artemether and lumefantrine are limited in parenteral delivery due to their poor water solubility. Herein, the aim of this study was to develop the lipid-based emulsions for intravenous co-delivery of artemether and lumefantrine. The lipid emulsion was prepared by high-speed shear and high-pressure homogenization, and the formulations were optimized mainly by monitoring particle size distribution under autoclaved conditions...
May 10, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/29747442/safety-evaluations-of-bifidobacterium-bifidum-bgn4-and-bifidobacterium-longum-bori
#20
Min Jeong Kim, Seockmo Ku, Sun Young Kim, Hyun Ha Lee, Hui Jin, Sini Kang, Rui Li, Tony V Johnston, Myeong Soo Park, Geun Eog Ji
Over the past decade, a variety of lactic acid bacteria have been commercially available to and steadily used by consumers. However, recent studies have shown that some lactic acid bacteria produce toxic substances and display properties of virulence. To establish safety guidelines for lactic acid bacteria, the Food and Agriculture Organization of the United Nations (FAO)/World Health Organization (WHO) has suggested that lactic acid bacteria be characterized and proven safe for consumers’ health via multiple experiments (e...
May 9, 2018: International Journal of Molecular Sciences
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