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https://www.readbyqxmd.com/read/29134279/dietary-k-and-cl-independently-regulate-basolateral-conductance-in-principal-and-intercalated-cells-of-the-collecting-duct
#1
Viktor N Tomilin, Oleg Zaika, Arohan R Subramanya, Oleh Pochynyuk
The renal collecting duct contains two distinct cell types, principal and intercalated cells, expressing potassium Kir4.1/5.1 (KCNJ10/16) and chloride ClC-K2 (ClC-Kb in humans) channels on their basolateral membrane, respectively. Both channels are thought to play important roles in controlling systemic water-electrolyte balance and blood pressure. However, little is known about mechanisms regulating activity of Kir4.1/5.1 and ClC-K2/b. Here, we employed patch clamp analysis at the single channel and whole cell levels in freshly isolated mouse collecting ducts to investigate regulation of Kir4...
November 13, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/29126301/coagulation-testing-in-the-core-laboratory
#2
William E Winter, Sherri D Flax, Neil S Harris
Primary hemostasis begins with endothelial injury. VWF, produced by endothelial cells, binds to platelets and links them to subendothelial collagen. Platelet-derived ADP and thromboxane activate non-adhered platelets via their GPIIb/IIIa receptors, allowing these platelets to participate in platelet aggregation. Secondary hemostasis is initiated with the binding of factor VII to extravascular tissue factor (TF). Factors II, VII, IX and X are vitamin K-dependent factors. The role of vitamin K is to assist in the addition of gamma carboxylate groups to glutamic acids in the "GLA" domains of these factors...
November 8, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/29078874/14-day-thawed-plasma-retains-clot-enhancing-properties-and-inhibits-tpa-induced-fibrinolysis
#3
Benjamin R Huebner, Ernest E Moore, Hunter B Moore, Raymond Shepherd-Singh, Angela Sauaia, Gregory R Stettler, Geoffrey R Nunns, Christopher C Silliman
BACKGROUND: Plasma-first resuscitation attenuates trauma-induced coagulopathy (TIC); however, the logistics of plasma-first resuscitation require thawed plasma (TP) be readily available due to the obligatory thawing time of fresh frozen plasma (FFP). The current standard is storage of TP for up to 5 days at 4°C, based on factor levels at outdate, for use in patients at risk for TIC, but there remains a 2.2% outdated wastage rate. However, the multitude of plasma proteins in attenuating TIC remains unknown...
November 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/29056479/effect-of-combined-stress-salinity-and-temperature-in-european-sea-bass-dicentrarchus-labrax-osmoregulatory-processes
#4
Waliullah Masroor, Emilie Farcy, Romain Gros, Catherine Lorin-Nebel
European sea bass Dicentrarchus labrax undertake seasonal migrations to estuaries and lagoons that are characterized by fluctuations in environmental conditions. Their ability to cope with these unstable habitats is undeniable, but it is still not clear how and to what extent salinity acclimation mechanisms are affected at temperatures higher than in the sea. In this study, juvenile sea bass were pre-acclimated to seawater (SW) at 18°C (temperate) or 24°C (warm) for 2weeks and then transferred to fresh water (FW) or SW at the respective temperature...
October 19, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29041927/diagnostic-performance-of-the-loop-mediated-isothermal-amplification-lamp-based-illumigene-%C3%A2-malaria-assay-in-a-non-endemic-region
#5
Anne-Sophie De Koninck, Lieselotte Cnops, Mattias Hofmans, Jan Jacobs, Dorien Van den Bossche, Jan Philippé
BACKGROUND: Light microscopy and antigen-based rapid diagnostic tests are the primary diagnostic tools for detecting malaria, although being labour-intensive and frequently challenged by lack of personnel's experience and low levels of parasite density. The latter being especially important in non-endemic settings. Novel molecular techniques aim to overcome this drawback. The objective of this study was to assess the diagnostic performance of the illumigene malaria assay(®) (Meridian Bioscience) compared to microscopy, RDT and real-time PCR...
October 17, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29028283/implementation-of-buffy-coat-derived-pooled-platelet-concentrates-for-internal-quality-control-of-light-transmission-aggregometry-a-proof-of-concept-study
#6
F Prüller, K Rosskopf, H Mangge, E Mahla, D von Lewinski, E C Weiss, A Riegler, D Enko
BACKGROUND: Standardized commercially available control material for internal quality control (IQC) of light transmission aggregometry (LTA) is still lacking. Moreover, the provision of normal blood donors to provide fresh platelets is difficult in small laboratories, where "volunteers" may be of short supply. OBJECTIVES: To evaluate the implementation of buffy-coat-derived pooled platelet concentrates (PCs) for IQC material of LTA. METHODS: We used buffy-coat-derived pooled PCs from the blood bank as IQC material for LTA...
October 13, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29021155/effects-of-clinically-meaningful-concentrations-of-anti-pseudomonal-%C3%AE-lactams-on-time-to-detection-and-organism-growth-in-blood-culture-bottles
#7
Mordechai Grupper, David P Nicolau, Jaber Aslanzadeh, Linda K Tanner, Joseph L Kuti
The effectiveness of antimicrobial binding resins present in blood culture (BC) bottles in removing meropenem, ceftolozane/tazobactam, and ceftazidime/avibactam is unknown. We assessed the time to detection (TTD) and growth of 2 Pseudomonas aeruginosa isolates in the presence of clinically meaningful concentrations of these antibiotics. BACTEC Plus Aerobic/F and BacT/ALERT FA Plus BC bottles were inoculated with one of two isolates (1 meropenem susceptible, 1 resistant), followed by fresh whole blood containing the peak, midpoint, or trough plasma concentrations for meropenem, ceftolozane/tazobactam, and ceftazidime/avibactam...
October 11, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28986455/genomic-triangulation-and-coverage-analysis-in-whole-exome-sequencing-based-molecular-autopsies
#8
Garrett W Shanks, David J Tester, Sneha Nishtala, Jared M Evans, Michael J Ackerman
BACKGROUND: WEMA (Whole-Exome Molecular Autopsy) and surveillance of cardiac channelopathy and cardiomyopathy genes represents the latest molecular autopsy for sudden death in the young (SDY). To date, the majority of WEMA has been performed on the SDY case only. METHODS AND RESULTS: We performed whole-exome sequencing and nucleotide-level coverage analysis on 28 SDY cases (18.4±7.8 years) and their parents to determine the inheritance patterns of ultrarare, nonsynonymous variants in 99 sudden death-susceptibility genes...
October 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28978093/molecular-characterization-of-circulating-colorectal-tumor-cells-defines-genetic-signatures-for-individualized-cancer-care
#9
Say Li Kong, Xingliang Liu, Nur-Afidah Mohamed Suhaimi, Kenneth Jia Hao Koh, Min Hu, Daniel Yoke San Lee, Igor Cima, Wai Min Phyo, Esther Xing Wei Lee, Joyce A Tai, Yu Miin Foong, Jess Honganh Vo, Poh Koon Koh, Tong Zhang, Jackie Y Ying, Bing Lim, Min-Han Tan, Axel M Hillmer
Studies on circulating tumor cells (CTCs) have largely focused on platform development and CTC enumeration rather than on the genomic characterization of CTCs. To address this, we performed targeted sequencing of CTCs of colorectal cancer patients and compared the mutations with the matched primary tumors. We collected preoperative blood and matched primary tumor samples from 48 colorectal cancer patients. CTCs were isolated using a label-free microfiltration device on a silicon microsieve. Upon whole genome amplification, we performed amplicon-based targeted sequencing on a panel of 39 druggable and frequently mutated genes on both CTCs and fresh-frozen tumor samples...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28976034/comparison-of-two-blood-sampling-techniques-for-the-determination-of-coagulation-parameters-in-the-horse-jugular-venipuncture-and-indwelling-intravenous-catheter
#10
C J Mackenzie, C M McGowan, G Pinchbeck, H B Carslake
BACKGROUND: Evaluation of coagulation status is an important component of critical care. Ongoing monitoring of coagulation status in hospitalised horses has previously been via serial venipuncture due to concerns that sampling directly from the intravenous catheter (IVC) may alter the accuracy of the results. Adverse effects such as patient anxiety and trauma to the sampled vessel could be avoided by the use of an indwelling IVC for repeat blood sampling. OBJECTIVES: To compare coagulation parameters from blood obtained by jugular venipuncture with IVC sampling in critically ill horses...
October 4, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28975487/biochemical-and-histopathological-changes-of-subacute-cadmium-intoxication-in-male-rats
#11
Rasha M Saleh, Walaa F Awadin
Biochemical and histopathological effects of subacute intoxication of rats with cadmium (Cd) were studied in rats. Twenty adult healthy male albino rats were randomly divided into two duplicate groups (five rats in each cage); (1) control group where rats were provided with standard diet and water ad-libitum, (2) Cd group where rats were subjected to freshly prepared Cd chloride solution (CdCl2) 200 mg/l in drinking water daily for 8 weeks, the whole duration of experiment. Blood samples were obtained after 4 weeks, via retro-orbital bleeding for separation of serum...
November 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28970688/transfusion-related-adverse-reactions-in-pediatric-and-surgical-patients-at-a-tertiary-care-teaching-hospital-in-india
#12
Kunal J Ghataliya, Jigar D Kapadia, Mira K Desai, K M Mehariya, G H Rathod, Nidhi Bhatnagar, M D Gajjar
BACKGROUND: Use of blood and its components is lifesaving. However, their use is often associated with adverse events. OBJECTIVE: To analyze the pattern of adverse reactions associated with transfusion of blood and its components in pediatric and surgical patients at a tertiary care teaching hospital. MATERIALS AND METHODS: Patients receiving transfusion of blood or its components in a randomly selected unit each from Departments of Pediatrics, including thalassemia OPD and surgery, were monitored intensively for a period of 6 months...
July 2017: Asian Journal of Transfusion Science
https://www.readbyqxmd.com/read/28969280/root-conditioning-with-citric-acid-and-ethylenediaminetetraacetic-acid-and-their-effect-on-fibrin-clot-adhesion-to-dentin-a-scanning-electron-microscopic-study
#13
Sangeetha Subramanian, Devapriya Appukuttan, Anupama Tadepalli, Prakash Ponnudurai Samuel Gnana, Rajagopal Thennukonda Athmarao
INTRODUCTION: Root biomodifiers are used to remove the smear layer formed on the roots as a result of mechanical debridement and also to expose collagen fibers making the root surfaces biologically acceptable. Further, the blood element linkage to demineralized roots and clot stabilization by collagen fibres are vital for the wound healing and success of periodontal surgery. AIM: The aim of this study was to evaluate and compare the distribution of fibrin network to dentin surfaces conditioned with citric acid and Ethylenediaminetetraacetic Acid (EDTA) using Scanning Electron Microscope (SEM)...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28969255/alterations-in-the-reactive-oxygen-species-in-peripheral-blood-of-chronic-myeloid-leukaemia-patients-from-northern-india
#14
Sunita Jetly, Neha Verma, Kumar Naidu, Muneeb Ahmad Faiq, Tulika Seth, Daman Saluja
INTRODUCTION: There is a significant difference in the Reactive Oxygen Species (ROS) levels of Chronic Myeloid Leukaemia (CML) patients before and during treatment with Tyrosine Kinase Inhibitors (TKIs). This is because high ROS levels support oncogenic phenotype of CML by inducing proliferation pathway and accumulation of further genetic mutations. Often the measurement is done on WBC or serum for ascertaining one type of ROS species, but measurement of global ROS in fresh whole blood will give more accurate estimation of ROS...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28953559/novel-concepts-for-damage-control-resuscitation-in-trauma
#15
Philbert Y Van, John B Holcomb, Martin A Schreiber
PURPOSE OF REVIEW: Traumatic injuries are a major cause of mortality worldwide. Damage control resuscitation or balanced transfusion of plasma, platelets, and red blood cells for the management of exsanguinating hemorrhage after trauma has become the standard of care. We review the literature regarding the use of alternatives to achieve the desired 1 : 1:1 ratio as availability of plasma and platelets can be problematic in some environments. RECENT FINDINGS: Liquid and freeze dried plasma (FDP) are logistically easier to use and may be superior to fresh frozen plasma...
December 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28941170/imaging-flow-cytometry-assays-for-quantifying-pigment-grade-titanium-dioxide-particle-internalization-and-interactions-with-immune-cells-in-whole-blood
#16
Rachel E Hewitt, Bradley Vis, Laetitia C Pele, Nuno Faria, Jonathan J Powell
Pigment grade titanium dioxide is composed of sub-micron sized particles, including a nanofraction, and is widely utilized in food, cosmetic, pharmaceutical, and biomedical industries. Oral exposure to pigment grade titanium dioxide results in at least some material entering the circulation in humans, although subsequent interactions with blood immune cells are unknown. Pigment grade titanium dioxide is employed for its strong light scattering properties, and this work exploited that attribute to determine whether single cell-particle associations could be determined in immune cells of human whole blood at "real life" concentrations...
September 20, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28936148/the-potential-anticoagulant-property-of-caulerpa-lentillifera-crude-extract
#17
Althea R Arenajo, Adrian P Ybañez, Maria Maichol P Ababan, Charlotte E Villajuan, May Rose M Lasam, Chiqui P Young, Julie Lynn A Reyes
BACKGROUND: Anticoagulants have been used in the treatment of several circulatory diseases and thrombotic disorders, and in the blood sampling for hematologic analysis. Sulfated polysaccharides (SP), which have anticoagulant properties, are found in most seaweeds, including Caulerpa spp. OBJECTIVE: The study generally aimed to evaluate the potential anticoagulant property of Caulerpa lentillifera. METHODOLOGY: The whole plant of fresh C. lentillifera was washed thoroughly with distilled water and manually expressed to obtain the extract...
July 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28930996/assessment-of-the-anticoagulant-and-anti-inflammatory-properties-of-endothelial-cells-using-3d-cell-culture-and-non-anticoagulated-whole-blood
#18
Riccardo Sfriso, Anjan Bongoni, Yara Banz, Nikolai Klymiuk, Eckhard Wolf, Robert Rieben
In vivo, endothelial cells are crucial for the natural anticoagulation of circulating blood. Consequently, endothelial cell activation leads to blood coagulation. This phenomenon is observed in many clinical situations, like organ transplantation in the presence of pre-formed anti-donor antibodies, including xenotransplantation, as well as in ischemia/reperfusion injury. In order to reduce animal experimentation according to the 3R standards (reduction, replacement and refinement), in vitro models to study the effect of endothelial cell activation on blood coagulation would be highly desirable...
September 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28929945/innovative-pcr-without-dna-extraction-for-african-sickle-cell-disease-diagnosis
#19
L Detemmerman, S Olivier, V Bours, F Boemer
OBJECTIVES: Hemoglobin (Hb) disorders consist of thalassemia and Hb structural variants, of which the major forms are associated with severe anemia and/or vascular occlusion. Current diagnostic techniques are highly accurate and mostly based on isoelectric focusing, high-performance liquid chromatography or mass spectrometry, which often require advanced laboratory equipment. In sub-Saharan Africa, the Hb disorders are mainly associated to the pathological variants hemoglobin S (HbS) and HbC...
September 20, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28926988/quality-assessment-of-platelet-rich-fibrin-like-matrix-prepared-from-whole-blood-samples-after-extended-storage
#20
Hideo Kawabata, Kazushige Isobe, Taisuke Watanabe, Toshimitsu Okudera, Masayuki Nakamura, Masashi Suzuki, Jietsu Ryu, Yutaka Kitamura, Hajime Okudera, Kazuhiro Okuda, Koh Nakata, Tomoyuki Kawase
The platelet-rich fibrin-like matrix (PRFM) is usually prepared onsite and immediately used for regenerative therapy. Nonetheless, to meet the clinical necessity of preserving the PRFM without quality deterioration, we developed a method for preparation of PRFMs from short-term-stored whole blood (WB) samples. In this study, to evaluate the practical expiration date of storage, we extended the storage time of WB samples from 2 to 7 days and assessed the quality of the resulting PRFMs. WB samples collected with acid-citrate-dextrose were stored with gentle agitation at ambient temperature...
September 18, 2017: Biomedicines
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