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https://www.readbyqxmd.com/read/29029130/alternative-sample-types-for-hiv-1-antiretroviral-drug-resistance-testing
#1
Dolly Singh, Adit Dhummakupt, Lilly Siems, Deborah Persaud
Monitoring human immunodeficiency virus type 1 (HIV-1) drug resistance is critical for assessing ART effectiveness and treatment outcomes for HIV-1-infected individuals, including children, worldwide. Traditionally, testing for HIV-1 drug resistance has primarily been performed on plasma samples, and with commercially available, clinically validated assays that are costly and difficult to access. While plasma is the preferred sample for HIV-1 drug resistance genotyping, plasma analysis requires sophisticated laboratory equipment, personnel, space, and stringent storage conditions for maintenance of sample integrity and transport...
October 6, 2017: Journal of Infectious Diseases
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
#2
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/29028272/dietary-carbohydrates-components-of-energy-balance-and-associated-health-outcomes
#3
Harry A Smith, Javier T Gonzalez, Dylan Thompson, James A Betts
The role of dietary carbohydrates in the development of obesity and associated metabolic dysfunction has recently been questioned. Within the last decade, the Scientific Advisory Committee on Nutrition carried out a comprehensive evaluation of the role of dietary carbohydrates in human health. The current review aims to complement and extend this report by providing specific consideration of the effects of the component parts of energy balance, their interactions, and their culmination on energy storage and health...
October 1, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/29027064/light-scattering-measurements-in-electron-beam-sterilized-corneas-stored-in-recombinant-human-serum-albumin
#4
Khoa D Tran, Yan Li, Jeffrey D Holiman, Maolong Tang, David Huang, Michael D Straiko, Christopher G Stoeger
Irradiated corneal tissues have been used for a variety of ophthalmic procedures including glaucoma drainage device covers and lamellar grafts. The maintenance of corneal clarity is important, as light obstructions resulting from processing or long-term storage of irradiated corneas may negatively affect vision and postoperative cosmesis. It has been reported that corneal tissues can be preserved in human serum albumin (HSA), however, the clarity of corneas after long-term storage in HSA has not been well described...
October 12, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29026811/the-use-of-platelet-rich-plasma-for-storage-of-surplus-harvested-skin-grafts
#5
Ilknur Keskin, Nilufer Ayturk, Mustafa Sutcu, Mustafa Keskin, Tangul Mudok
BACKGROUND: There is a need for improved methods and storage media to sustain the tissue viability of autologous skin grafts. OBJECTIVE: To compare histological changes in human skin grafts stored in platelet-rich plasma (PRP) with those of grafts stored in saline. METHODS: Eight circular, 3-mm full-thickness skin graft samples were harvested from the abdominal skin of each of 5 patients scheduled to undergo an abdominoplasty procedure. Four of these graft samples were stored in saline, and the other 4 were stored in saline mixed with PRP prepared from the patient's own venous blood...
February 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29025378/transfusion-related-acute-lung-injury-trali-and-transfusion-associated-circulatory-overload-taco-in-liver-transplantation-a-case-report-and-focused-review
#6
Natalie K Smith, Sang Kim, Bryan Hill, Andrew Goldberg, Samuel DeMaria, Jeron Zerillo
Liver transplantation (LT) is a complex procedure in a patient with multi-organ system dysfunction and coagulation defects. The surgical procedure involves dissection, major vessel manipulation, and pathophysiologic effects of graft storage and reperfusion. As a result, LT frequently involves significant hemorrhage. Subsequent massive transfusion carries high risk of transfusion-associated complications. Transfusion-related acute lung injury (TRALI) and transfusion-associated circulatory overload (TACO) are the leading causes of transfusion associated mortality...
October 1, 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29021123/red-blood-cell-storage-and-in-hospital-mortality-a-secondary-analysis-of-the-inform-randomised-controlled-trial
#7
Richard J Cook, Nancy M Heddle, Ker-Ai Lee, Donald M Arnold, Mark A Crowther, Philip J Devereaux, Martin Ellis, Priscilla Figueroa, Andrea Kurz, David Roxby, Daniel I Sessler, Yehudit Sharon, Magdalena Sobieraj-Teague, Theodore E Warkentin, Kathryn E Webert, Rebecca Barty, Yang Liu, John W Eikelboom
BACKGROUND: No randomised trials have addressed whether exposure to red blood cells (RBCs) stored longer than 35 days is associated with harm in patients. We aimed to assess the risk of in-hospital mortality associated with transfusing blood stored longer than 35 days. METHODS: We did a secondary analysis of the INforming Fresh versus Old Red cell Management (INFORM) trial, a pragmatic, multicentre, randomised controlled trial of patients (≥18 years) admitted to one of six hospitals in Australia, Canada, Israel, and the USA and expected to need RBC transfusions...
October 5, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/29019853/holder-pasteurized-human-donor-milk-how-long-can-it-be-preserved
#8
Marita de Waard, Elise Mank, Karin van Dijk, Anne Schoonderwoerd, Johannes B van Goudoever
OBJECTIVE: When own mother's milk falls short, pasteurized human donor milk is recommended as alternative feeding for preterm infants. Donor milk has to meet the highest safety standards, but its processing and storage is expensive. The recommended storage time of pasteurized donor milk is three months. The objective of this study was to determine if the frozen storage time of pasteurized donor milk can be extended beyond 3 months without compromising its safety and quality. METHODS: For this prospective observational study breast-milk samples of 34 unique women, collected between November 2014 and June 2015, were provided by the Dutch Human Milk Bank...
October 10, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29018778/cancer-preventive-properties-of-an-anthocyanin-enriched-sweet-potato-in-the-apc-min-mouse-model
#9
Khalid Asadi, Lynnette R Ferguson, Martin Philpott, Nishi Karunasinghe
BACKGROUND: Anthocyanin-rich foods and preparations have been reported to reduce the risk of life-style related diseases, including cancer. The SL222 sweet potato, a purple-fleshed cultivar developed in New Zealand, accumulates high levels of anthocyanins in its storage root. METHODS: We examined the chemopreventative properties of the SL222 sweet potato in the C57BL/6J-APC (MIN/+) (APC(MIN)) mouse, a genetic model of colorectal cancer. APC(MIN) and C57BL/6J wild-type mice (n=160) were divided into four feeding groups consuming diets containing 10% SL222 sweet potato flesh, 10% SL222 sweet potato skin, or 0...
September 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29018645/dietary-therapy-for-von-gierke-s-disease-a-case-report
#10
Mohammad Raza, Fehmina Arif, Pirthvi Raj Giyanwani, Saad Azizullah, Sonum Kumari
Von Gierke's disease, also known as glycogen storage disease (GSD) type 1A, is an autosomal recessive disease in which there is an inability to cleave glycogen to glucose because of a glucose 6 phosphate deficiency resulting in hypoglycemia and lactic acidosis. The patient may present with hepatomegaly and signs and symptoms of hypoglycemia. We diagnosed a case of Von Gierke's disease in a seven-month-old female infant who was admitted for abdominal distension, vomiting, and lethargy for a duration of four months with characteristic rounded doll's face, fatty cheeks, protuberant abdomen, and massive hepatomegaly...
August 8, 2017: Curēus
https://www.readbyqxmd.com/read/29018639/managing-heart-failure-at-home-with-point-of-care-diagnostics
#11
Paul R Degregory, Jansen Tapia, Tammy Wong, Jo Villa, Ian Richards, Richard M Crooks
The objective of this paper is development of an inexpensive point-of-care sensor for detecting the primary heart failure marker peptide, NT-proBNP. The device technology is based on an antibody sandwich assay, but with three innovative aspects. First, chemical amplification is carried out via oxidation of silver nanoparticles (NPs) attached to signaling antibodies rather than by enzymatic amplification. The electrochemical method is faster and eliminates the need for long-term storage of enzymes. Second, the antibody sandwich is formed on mobile magnetic beads...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/29018304/the-new-greiner-fc-mix-tubes-equal-the-old-terumo-ones-and-are-useful-as-glucose-stabilizer-after-prolonged-storage-of-samples
#12
Graziella Bonetti, Mariarosa Carta
INTRODUCTION: The aim of our study is to compare new Greiner tubes containing granulated citrate buffer with the Terumo ones and to verify if they are suitable for glucose stabilization after prolonged storage. MATERIALS AND METHODS: In Study 1, blood was collected in two Terumo and two Greiner tubes from 40 healthy volunteers. Samples were stored at room temperature (RT) for 1 and 2 hours, respectively. Comparison was made by Deming regression. In Study 2, glucose was measured in a reference tube (N = 50), according to the ADA-NACB guidelines and in aliquots of Greiner samples maintained un-centrifuged at RT for 1, 2, 4 (N = 50) and 24, 48, 72 hours (N = 35)...
October 15, 2017: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/29017389/the-canadian-laboratory-initiative-on-pediatric-reference-intervals-a-caliper-white-paper
#13
Khosrow Adeli, Victoria Higgins, Karin Trajcevski, Nicole White-Al Habeeb
Laboratory investigations provide physicians with objective data to aid in disease diagnosis, clinical decision making, and patient follow up. Clinical interpretation of laboratory test results relies heavily on the availability of appropriate population-based reference intervals (i.e. normative values) or decision limits developed through clinical outcome studies. Although reference intervals are fundamental to accurate laboratory test interpretation, and thus critically important to healthcare, the need for sound evidence-based reference intervals has been largely overlooked, particularly in the pediatric population...
October 11, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/29017156/the-missing-link-in-the-pathophysiology-of-vascular-cognitive-impairment-design-of-the-heart-brain-study
#14
Astrid M Hooghiemstra, Anne Suzanne Bertens, Anna E Leeuwis, Esther E Bron, Michiel L Bots, Hans-Peter Brunner-La Rocca, Anton J M de Craen, Rob J van der Geest, Jacoba P Greving, L Jaap Kappelle, Wiro J Niessen, Robert J van Oostenbrugge, Matthias J P van Osch, Albert de Roos, Albert C van Rossum, Geert Jan Biessels, Mark A van Buchem, Mat J A P Daemen, Wiesje M van der Flier
BACKGROUND: Hemodynamic balance in the heart-brain axis is increasingly recognized as a crucial factor in maintaining functional and structural integrity of the brain and thereby cognitive functioning. Patients with heart failure (HF), carotid occlusive disease (COD), and vascular cognitive impairment (VCI) present themselves with complaints attributed to specific parts of the heart-brain axis, but hemodynamic changes often go beyond the part of the axis for which they primarily seek medical advice...
October 10, 2017: Cerebrovascular Diseases Extra
https://www.readbyqxmd.com/read/28988603/exploring-donor-and-product-factors-and-their-impact-on-red-cell-post-transfusion-outcomes
#15
REVIEW
Shuoyan Ning, Nancy M Heddle, Jason P Acker
The impact of donor characteristics, red cell age, and red cell processing methods on recipient outcomes is an emerging area of research. Knowledge generated from exploring this transfusion continuum has the potential to change the way donors are selected and how donations are processed and stored with important clinical and operational impact. Recently, donor characteristics including age, gender, donation frequency, genetics, and ethnicity have been shown to affect product quality and possibly recipient outcomes...
July 31, 2017: Transfusion Medicine Reviews
https://www.readbyqxmd.com/read/28986925/cerebral-blood-flow-in-normal-aging-adults-cardiovascular-determinants-clinical-implications-and-aerobic-fitness
#16
REVIEW
Takashi Tarumi, Rong Zhang
Senescence is a leading cause of mortality, disability, and non-communicable chronic diseases in older adults. Mounting evidence indicates that the presence of cardiovascular disease and risk factors elevates the incidence of both vascular cognitive impairment and Alzheimer's disease (AD). Age-related declines in cardiovascular function may impair cerebral blood flow (CBF) regulation, leading to the disruption of neuronal micro-environmental homeostasis. The brain is the most metabolically active organ with limited intracellular energy storage and critically depends on CBF to sustain neuronal metabolism...
October 6, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28985850/the-administration-of-argon-during-ex-vivo-normothermic-perfusion-in-an-experimental-model-of-kidney-ischemia-reperfusion-injury
#17
Stephanie F Smith, Thomas Adams, Sarah A Hosgood, Michael L Nicholson
BACKGROUND: Argon has shown potential as an organoprotective agent in numerous models of ischemia-reperfusion injury (IRI). The aim of this study was to evaluate the effects of argon gas during ex vivo normothermic perfusion (EVNP) in an experimental porcine model of kidney IRI. MATERIALS AND METHODS: After a warm ischemia time of 15 min and 17 h of static cold storage, porcine kidneys underwent 1 h of EVNP using leukocyte-depleted blood. During EVNP, kidneys were perfused with a gas composition either of 70% argon (n = 6), 70% nitrogen control (n = 6), or standard 95% oxygen (n = 6) balanced with 5% carbon dioxide...
October 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28985713/patients-with-glycogen-storage-diseases-undergoing-anesthesia-a-case-series
#18
Carmelina Gurrieri, Juraj Sprung, Toby N Weingarten, Mary E Warner
BACKGROUND: Glycogen storage diseases are rare genetic disorders of glycogen synthesis, degradation, or metabolism regulation. When these patients are subjected to anesthesia, perioperative complications can develop, including hypoglycemia, rhabdomyolysis, myoglobinuria, acute renal failure, and postoperative fatigue. The objective of this study was to describe the perioperative course of a cohort of patients with glycogen storage diseases. METHODS: This is a retrospective review of patients with glycogen storage diseases undergoing anesthetic care at our institution from January 1, 1990, through June 30, 2015 to assess perioperative management and outcomes...
October 6, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28985606/preparation-of-artificial-red-cell-and-its-application-on-alleviation-of-tumor-hypoxia
#19
Jiaxin Qu, Xiaomeng Guo, Wei Li, Wanqing Hou, Hanbo Zhang, Lihua Luo, Chunqi Zhu, Jie Yang, Xiaoyi Yin, Yuan Tao, Yongzhong Du, Yan Lou, Dawei Chen, Jian You
Hemoglobin-based oxygen carriers were developed as an alternative for blood transfusion. However, the research progress for their further clinic applications was slow in recent several years. Hypoxia is found in most solid tumors, which is responsible for the tumor formation, increased metastasis, drug resistance during therapeutic process as well as poor patient survival. In this work, novel hemoglobin (Hb) loaded nanoliposomes, as artificial red cells for oxygen delivery, were optimized by screening various types of phospholipids and analyzing different mole ratio of phospholipid to cholesterol...
September 20, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28984679/influence-of-laboratory-related-and-endoscopy-related-factors-on-the-assessment-of-serum-pepsinogens-and-gastrin-17
#20
Elisabetta Goni, Marino Venerito, Christian Schulz, Jochen Weigt, Cosima Langner, Alexander Link, Peter Malfertheiner
BACKGROUND AND AIM: Serum pepsinogen I (PGI) and pepsinogen II (PGII) are noninvasive parameters in the detection of atrophic gastritis. The diagnostic add-on value of serum gastrin-17 (G-17) remains uncertain. The aim of this study was to assess the stability of these serum parameters over time and to evaluate the influence of clinical factors, such as upper gastrointestinal (GI) endoscopy and bowel cleansing, on serum PGI, PGII, and G-17 assessment. PATIENTS AND METHODS: A prospective study was carried out in healthy individuals and patients...
October 3, 2017: European Journal of Gastroenterology & Hepatology
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