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Critical Reviews in Clinical Laboratory Sciences

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https://www.readbyqxmd.com/read/28443762/prediction-of-therapy-response-in-ovarian-cancer-where-are-we-now
#1
Khalid El Bairi, Mariam Amrani, Abdul Hafeez Kandhro, Said Afqir
Therapy resistance is a major challenge in the management of ovarian cancer (OC). Advances in detection and new technology validation have led to the emergence of biomarkers that can predict responses to available therapies. It is important to identify predictive biomarkers to select resistant and sensitive patients in order to reduce important toxicities, to reduce costs and to increase survival. The discovery of predictive and prognostic biomarkers for monitoring therapy is a developing field and provides promising perspectives in the era of personalized medicine...
April 26, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28393586/evaluation-of-glycated-albumin-ga-and-ga-hba1c-ratio-for-diagnosis-of-diabetes-and-glycemic-control-a-comprehensive-review
#2
Sara Yazdanpanah, Mohammad Rabiee, Mohammadreza Tahriri, Mojgan Abdolrahim, Asadollah Rajab, Hossein E Jazayeri, Lobat Tayebi
Diabetes Mellitus (DM) is a group of metabolic diseases characterized by chronic high blood glucose concentrations (hyperglycemia). When it is left untreated or improperly managed, it can lead to acute complications including diabetic ketoacidosis and non-ketotic hyperosmolar coma. In addition, possible long-term complications include impotence, nerve damage, stroke, chronic kidney failure, cardiovascular disease, foot ulcers, and retinopathy. Historically, universal methods to measure glycemic control for the diagnosis of diabetes included fasting plasma glucose level (FPG), 2-h plasma glucose (2HP), and random plasma glucose...
April 10, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28457177/high-sensitivity-cardiac-troponin-assays-from-improved-analytical-performance-to-enhanced-risk-stratification
#3
Marek Kozinski, Magdalena Krintus, Jacek Kubica, Grazyna Sypniewska
Implementation of cardiac troponin (cTn) assays has revolutionized the diagnosis, risk stratification, triage and management of patients with suspected myocardial infarction (MI). The Universal Definition of MI brought about a shift in the diagnostics of MI, from an approach primarily based on electrocardiography (ECG) to one primarily based on biomarkers. Currently, detection of a rise and/or fall in concentration or activity of myocardial necrosis biomarkers, preferentially cTns, with at least one value above the 99th percentile upper reference limit (URL), is the essential component for the diagnosis of MI...
May 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28393582/insights-into-the-human-brain-proteome-disclosing-the-biological-meaning-of-protein-networks-in-cerebrospinal-fluid
#4
Paulo Bastos, Rita Ferreira, Bruno Manadas, Paula I Moreira, Rui Vitorino
Cerebrospinal fluid (CSF) is an excellent source of biological information regarding the nervous system, once it is in close contact and accurately reflects alterations in this system. Several studies have analyzed differential protein profiles of CSF samples between healthy and diseased human subjects. However, the pathophysiological mechanisms and how CSF proteins relate to diseases are still poorly known. By applying bioinformatics tools, we attempted to provide new insights on the biological and functional meaning of proteomics data envisioning the identification of putative disease biomarkers...
May 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28393579/clinical-perspectives-of-dried-blood-spot-protein-quantification-using-mass-spectrometry-methods
#5
Sylvain Lehmann, Alexia Picas, Laurent Tiers, Jerome Vialaret, Christophe Hirtz
Although dried blood spot (DBS) sampling methods have been used since the 1960s, they have recently attracted renewed interest because of the development of new clinical applications. In addition to their other advantages, DBS methods can now be used to quantify many blood proteins using the latest highly sensitive and robust, liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) approaches such as multiple reaction monitoring. The DBS blood sampling approach could provide a useful alternative means of conducting blood sampling for routine clinical purposes and patients' follow-up...
May 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28393575/using-circulating-cell-free-dna-to-monitor-personalized-cancer-therapy
#6
Michael Oellerich, Ekkehard Schütz, Julia Beck, Philipp Kanzow, Piers N Plowman, Glen J Weiss, Philip D Walson
High-quality genomic analysis is critical for personalized pharmacotherapy in patients with cancer. Tumor-specific genomic alterations can be identified in cell-free DNA (cfDNA) from patient blood samples and can complement biopsies for real-time molecular monitoring of treatment, detection of recurrence, and tracking resistance. cfDNA can be especially useful when tumor tissue is unavailable or insufficient for testing. For blood-based genomic profiling, next-generation sequencing (NGS) and droplet digital PCR (ddPCR) have been successfully applied...
May 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28102101/thyroid-in-pregnancy-from-physiology-to-screening
#7
Drahomira Springer, Jan Jiskra, Zdenka Limanova, Tomas Zima, Eliska Potlukova
Thyroid hormones are crucial for the growth and maturation of many target tissues, especially the brain and skeleton. During critical periods in the first trimester of pregnancy, maternal thyroxine is essential for fetal development as it supplies thyroid hormone-dependent tissues. The ontogeny of mature thyroid function involves organogenesis, and maturation of the hypothalamus, pituitary and the thyroid gland; and it is almost complete by the 12th-14th gestational week. In case of maternal hypothyroidism, substitution with levothyroxine must be started in early pregnancy...
March 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28084848/the-intriguing-role-of-soluble-urokinase-receptor-in-inflammatory-diseases
#8
S Desmedt, V Desmedt, J R Delanghe, R Speeckaert, M M Speeckaert
Inflammation is a key player in the development of an increasing amount of diseases. The soluble urokinase plasminogen activator receptor (suPAR) is a highly flexible molecule with intrinsic chemotactic properties. This glycoprotein has been evaluated as a biomarker of inflammation, immune activation, organ damage and clinical outcome in several pathologies, including cardiovascular disease, hepatitis, renal disorders and rheumatic pathologies. The use of this early warning inflammatory biomarker could potentially improve the prediction of the severity of these diseases and mortality...
March 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28013560/biomarkers-for-monitoring-chemotherapy-induced-cardiotoxicity
#9
Liyun Cao, Wuqiang Zhu, Elizabeth A Wagar, Qing H Meng
Cardiotoxicity, including acute and late-onset cardiotoxicity, is a well-known adverse effect of many types of antitumor agents. Early identification of patients with cardiotoxicity is important to ensure prompt treatment and minimize toxic effects. The etiology of chemotherapy-induced cardiotoxicity is multifactorial. Traditional methods for assessment of chemotherapy-induced cardiotoxicity typically involve serial measurements of cardiac function via multi-modality imaging techniques. Typically, however, significant left ventricular dysfunction has already occurred when cardiotoxicity is detected by imaging techniques...
March 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28132577/unsolved-challenges-in-pediatric-whole-exome-sequencing-a-literature-analysis
#10
Gabrielle Bertier, Karine Sénécal, Pascal Borry, Danya F Vears
Whole-exome sequencing (WES) has been instrumental in the discovery of novel genes and mechanisms causing Mendelian diseases. While this technology is now being successfully applied in a number of clinics, particularly to diagnose patients with rare diseases, it also raises a number of ethical, legal and social issues. In order to identify what challenges were directly foreseen by technology users, we performed a systematic review of the literature. In this paper, we focus on recent publications related to the use of WES in the pediatric context and analyze the most prominent challenges raised by technology users...
January 28, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28013562/deciphering-acute-coronary-syndrome-biomarkers-high-resolution-proteomics-in-platelets-thrombi-and-microparticles
#11
Diana Navas-Carrillo, Francisco Marín, Mariano Valdés, Esteban Orenes-Piñero
Acute coronary syndromes (ACS) encompass unstable angina, non-ST segment elevation myocardial infarction, ST-segment elevation myocardial infarction and sudden cardiac death. They are commonly associated with the presence of vulnerable plaques in the coronary arteries and occur when a thrombus formed from a ruptured atheromatous plaque causes a prolonged occlusion of a coronary artery. The erosion of the vulnerable plaques results in the formation of luminal thrombi secondary to platelet activation and the release of thrombogenic elements within the atherosclerotic lesions...
January 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28013559/key-factors-influencing-the-incidence-of-hemolysis-a-critical-appraisal-of-current-evidence
#12
Euan James McCaughey, Elia Vecellio, Rebecca Lake, Ling Li, Leslie Burnett, Douglas Chesher, Stephen Braye, Mark Mackay, Stephanie Gay, Tony Badrick, Johanna Westbrook, Andrew Georgiou
Hemolysis is a leading cause of pre-analytical laboratory errors. The identification of contributing factors is an important step towards the development of effective practices to reduce and prevent hemolysis. We performed a review of PUBMED, Embase, Medline and CINAHL to identify articles published between January 2000 and August 2016 that identified factors influencing in vitro hemolysis rates. The 40 studies included in this review provide excellent evidence that hemolysis rates are higher in Emergency Departments (EDs), for non-antecubital draws, for specimens drawn using an intravenous catheter compared to venipuncture and for samples transported by pneumatic tube compared to by hand...
January 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/27690713/targeting-microsomal-triglyceride-transfer-protein-and-lipoprotein-assembly-to-treat-homozygous-familial-hypercholesterolemia
#13
Meghan T Walsh, M Mahmood Hussain
Homozygous familial hypercholesterolemia (HoFH) is a polygenic disease arising from defects in the clearance of plasma low-density lipoprotein (LDL), which results in extremely elevated plasma LDL cholesterol (LDL-C) and increased risk of atherosclerosis, coronary heart disease, and premature death. Conventional lipid-lowering therapies, such as statins and ezetimibe, are ineffective at lowering plasma cholesterol to safe levels in these patients. Other therapeutic options, such as LDL apheresis and liver transplantation, are inconvenient, costly, and not readily available...
January 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/27282628/interventional-therapy-for-hypertension-back-on-track-again
#14
Paul Erne, Isabella Sudano, Therese J Resink, Thomas F Lüscher
Treatment-resistant hypertension, or resistant hypertension, is defined as blood pressure that remains above target despite concurrent use of at least three antihypertensive agents from different classes at optimal doses, one of which should be a diuretic. Important considerations in the diagnosis of treatment-resistant hypertension include the exclusion of pseudoresistance and the evaluation of potential secondary causes of hypertension and of concomitant conditions that maintain high blood pressure. The ability to diagnose true treatment-resistant hypertension is important for selection of patients who may be appropriately treated with an invasive therapy...
January 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/27193822/fda-approved-drugs-that-interfere-with-laboratory-tests-a-systematic-search-of-us-drug-labels
#15
Hui Yao, Elizabeth R Rayburn, Qiang Shi, Liang Gao, Wenjie Hu, Haibo Li
Drug-related laboratory test interference or drug/laboratory test interactions (DLTI) are a major source of laboratory errors. DLTI is of concern with regard to both the clinical diagnosis and the monitoring of patients. Although there have been numerous reports about specific drugs that interfere with laboratory tests, there has not been a recent review on the topic. We herein provide a review of the known DLTI of US FDA-approved drugs based on a systematic search of DailyMed, a website containing the labels of US FDA-approved drugs...
January 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/27960570/clinical-implications-of-estrone-sulfate-measurement-in-laboratory-medicine
#16
Atoosa Rezvanpour, Andrew C Don-Wauchope
Estrone sulfate (E1S) is the most abundant circulating estrogen and it has the potential to be used as a biomarker in certain conditions where estimation of low levels of estrogen or changes in relative levels of estrogens are important. This review will critically consider the role of estimating E1S for clinical laboratory practice. As E1S is an estrogen, a wider discussion of estrogens is included to contextualize the review. Assays have been available for a number of years for these estrogens and they have been measured in a number of clinical research studies...
December 14, 2016: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/27282765/platelets-are-versatile-cells-new-discoveries-in-hemostasis-thrombosis-immune-responses-tumor-metastasis-and-beyond
#17
Xiaohong Ruby Xu, Dan Zhang, Brigitta Elaine Oswald, Naadiya Carrim, Xiaozhong Wang, Yan Hou, Qing Zhang, Christopher Lavalle, Thomas McKeown, Alexandra H Marshall, Heyu Ni
Platelets are small anucleate blood cells generated from megakaryocytes in the bone marrow and cleared in the reticuloendothelial system. At the site of vascular injury, platelet adhesion, activation and aggregation constitute the first wave of hemostasis. Blood coagulation, which is initiated by the intrinsic or extrinsic coagulation cascades, is the second wave of hemostasis. Activated platelets can also provide negatively-charged surfaces that harbor coagulation factors and markedly potentiate cell-based thrombin generation...
December 2016: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/27191915/extracellular-vesicles-in-blood-milk-and-body-fluids-of-the-female-and-male-urogenital-tract-and-with-special-regard-to-reproduction
#18
B P Foster, T Balassa, T D Benen, M Dominovic, G K Elmadjian, V Florova, M D Fransolet, A Kestlerova, G Kmiecik, I A Kostadinova, C Kyvelidou, M Meggyes, M N Mincheva, L Moro, J Pastuschek, V Spoldi, P Wandernoth, M Weber, B Toth, U R Markert
Extracellular vesicles (EVs) are released from almost all cells and tissues. They are able to transport substances (e.g. proteins, RNA or DNA) at higher concentrations than in their environment and may adhere in a receptor-controlled manner to specific cells or tissues in order to release their content into the respective target structure. Blood contains high concentrations of EVs mainly derived from platelets, and, at a smaller amount, from erythrocytes. The female and male reproductive tracts produce EVs which may be associated with fertility or infertility and are released into body fluids and mucosas of the urogenital organs...
December 2016: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/27187575/role-of-inflammatory-marker-ykl-40-in-the-diagnosis-prognosis-and-cause-of-cardiovascular-and-liver-diseases
#19
A D Kjaergaard, J S Johansen, S E Bojesen, B G Nordestgaard
This review summarizes present evidence for the role of YKL-40 in the diagnosis, prognosis and cause of cardiovascular and alcoholic liver disease. The question of whether YKL-40 is merely a marker or a causal factor in the development of cardiovascular and liver disease is addressed, with emphasis on the Mendelian randomization design. The Mendelian randomization approach uses genetic variants associated with lifelong high plasma YKL-40 levels that are largely unconfounded and not prone to reverse causation...
December 2016: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/27173621/evidence-based-assessment-of-lipoprotein-a-as-a-risk-biomarker-for-cardiovascular-diseases-some-answers-and-still-many-questions
#20
Kazuhiko Kotani, Maria-Corina Serban, Peter Penson, Giuseppe Lippi, Maciej Banach
The present article is aimed at outlining the current state of knowledge regarding the clinical value of lipoprotein(a) (Lp(a)) as a marker of cardiovascular disease (CVD) risk by summarizing the results of recent clinical studies, meta-analyses and systematic reviews. The literature supports the predictive value of Lp(a) on CVD outcomes, although the effect size is modest. Lp(a) would also appear to have an effect on cerebrovascular outcomes, however the effect appears even smaller than that for CVD outcomes...
December 2016: Critical Reviews in Clinical Laboratory Sciences
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