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red blood cell distribution

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https://www.readbyqxmd.com/read/28928006/combining-nordtest-method-and-bootstrap-resampling-for-measurement-uncertainty-estimation-of-hematology-analytes-in-a-medical-laboratory
#1
Ming Cui, Lili Xu, Huimin Wang, Shaoqing Ju, Shuizhu Xu, Rongrong Jing
BACKGROUND: Measurement uncertainty (MU) is a metrological concept, which can be used for objectively estimating the quality of test results in medical laboratories. The Nordtest guide recommends an approach that uses both internal quality control (IQC) and external quality assessment (EQA) data to evaluate the MU. Bootstrap resampling is employed to simulate the unknown distribution based on the mathematical statistics method using an existing small sample of data, where the aim is to transform the small sample into a large sample...
September 16, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28923701/average-glucose-from-hemoglobin-a1c-for-altered-red-blood-cell-lifetimes-predictions-based-on-a-model-for-hemoglobin-a1c-formation
#2
Ross Molinaro, Jay H Herman, Douglas F Stickle
BACKGROUND: A model for hemoglobin A1c (HbA1c) formation was used to predict the relationship between average glucose (AG) and %HbA1c under conditions of altered red blood cell lifetime (RCL). METHODS: Using a kinetic mass balance model for formation of HbA1c in red blood cells as a function of age (time in circulation), whole blood %HbA1c vs. glucose was calculated based on the nonlinear distribution of red blood cells as a function of age across RCL. RESULTS: Model calculations provided a close fit to the standard relationship of estimated average glucose to %HbA1c for normal RCL (r>0...
September 15, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28923545/computational-model-for-vitamin-d-deficiency-using-hair-mineral-analysis
#3
Aboul Ella Hassanien, Alaa Tharwat, Hala S Own
Vitamin D deficiency is prevalent in the Arabian Gulf region, especially among women. Recent studies show that the vitamin D deficiency is associated with a mineral status of a patient. Therefore, it is important to assess the mineral status of the patient to reveal the hidden mineral imbalance associated with vitamin D deficiency. A well-known test such as the red blood cells is fairly expensive, invasive, and less informative. On the other hand, a hair mineral analysis can be considered an accurate, excellent, highly informative tool to measure mineral imbalance associated with vitamin D deficiency...
August 30, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28919343/characterizing-pathology-in-erythrocytes-using-morphological-and-biophysical-membrane-properties-relation-to-impaired-hemorheology-and-cardiovascular-function-in-rheumatoid-arthritis
#4
Oore-Ofe O Olumuyiwa-Akeredolu, Prashilla Soma, Antoinette V Buys, Legesse Kassa Debusho, Etheresia Pretorius
The inflammatory burden of the complex Rheumatoid Arthritis (RA) disease affects several organ-systems, including rheological properties of blood and its formed elements. Red blood cells (RBCs) are constantly exposed to circulating dysregulated inflammatory molecules that are co-transported within the vasculature; and their membranes may be particularly vulnerable to the accompanying oxidative stress. In the current study, we investigate biophysical and ultrastructural characteristics of RBCs obtained from a cohort of patients using atomic force microscopy (AFM), scanning electron microscopy (SEM) and confocal microscopy (CM)...
September 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28916240/association-between-red-blood-cell-distribution-width-and-all-cause-mortality-in-chronic-kidney-disease-patients-a-systematic-review-and-meta-analysis
#5
Tao Zhang, Jing Li, Yan Lin, Hongtao Yang, Shili Cao
BACKGROUND: Considering results among previous studies regarding the relationship of red blood cell distribution width (RDW) and all-cause mortality in chronic kidney disease (CKD) patients, we aimed to perform a comprehensive meta-analysis to evaluate the potential association between RDW and all-cause mortality in CKD patients. METHODS: We conducted a systematic literature using electronic databases (PubMed, Ovid, Embase and Web of Science) to identify the studies reporting the association between RDW and all-cause mortality in CKD patients...
September 12, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28915220/predicting-the-severity-of-acute-pancreatitis-with-red-cell-distribution-width-at-early-admission-stage
#6
Ting Zhang, Hua Liu, Dongyan Wang, Pengfei Zong, Changfeng Guo, Feng Wang, Deqing Wu, Maochun Tang, Jianjun Zhou, Yan Zhao
Red cell distribution width (RDW) has been proposed as an early prognosis marker with increased mortality in variety of pathophysiological conditions. We hypothesized that elevated RDW could be used in judging the severity of acute pancreatitis (AP). We retrospectively and prospectively studied 545 and 72 AP patients, who were admitted to the Shanghai Tenth People's Hospital of Tongji University, respectively. Compared with mild acute pancreatitis, significantly higher RDW was observed in patients with moderately severe acute pancreatitis and sever acute pancreatitis (14...
September 14, 2017: Shock
https://www.readbyqxmd.com/read/28906207/high-absolute-basophil-count-is-a-powerful-independent-predictor-of-inferior-overall-survival-in-patients-with-primary-myelofibrosis
#7
Marko Lucijanic, Ana Livun, Tajana Stoos-Veic, Vlatko Pejsa, Ozren Jaksic, David Cicic, Jelena Lucijanic, Zeljko Romic, Biserka Orehovec, Gorana Aralica, Marko Miletic, Rajko Kusec
OBJECTIVES: To investigate the clinical and prognostic significance of absolute basophil count (ABC) in patients with primary myelofibrosis (PMF). METHODS: We retrospectively investigated 58 patients with PMF treated in our institution in the period from 2006 to 2017. ABC was obtained in addition to other hematological and clinical parameters. Patients were separated into high and low ABC groups using the Receiver operating characteristic curve analysis. RESULTS: ABC was higher in PMF patients than in healthy controls (P < 0...
September 14, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28894888/-posttherapeutic-changes-in-bone-marrow
#8
REVIEW
T Geith, A-C Stellwag, A Baur-Melnyk
The bone marrow basically consists of red blood-forming bone marrow and yellow fat. In the skeleton, there is an age-dependent distribution of these two parts. In the context of medical interventions or therapies, bone marrow changes can occur, whereby the normal bone marrow can basically be replaced by fat, edema, or fibrosis/sclerosis. Here, specific signal intensities and patterns are shown in imaging. After irradiation therapies, edematous changes, hemorrhages, and osteoradionecroses are observed. Likewise, insufficiency fractures, impairment of the growth gaps, or the development of tumors is possible...
September 11, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28887206/reproducibility-and-relative-stability-in-magnetic-resonance-imaging-indices-of-tumor-vascular-physiology-over-a-period-of-24h-in-a-rat-9l-gliosarcoma-model
#9
Tavarekere N Nagaraja, Rasha Elmghirbi, Stephen L Brown, Lonni R Schultz, Ian Y Lee, Kelly A Keenan, Swayamprava Panda, Glauber Cabral, Tom Mikkelsen, James R Ewing
PURPOSE: The objective was to study temporal changes in tumor vascular physiological indices in a period of 24h in a 9L gliosarcoma rat model. METHODS: Fischer-344 rats (N=14) were orthotopically implanted with 9L cells. At 2weeks post-implantation, they were imaged twice in a 24h interval using dynamic contrast enhanced magnetic resonance imaging (DCE-MRI). Data-driven model-selection-based analysis was used to segment tumor regions with varying vascular permeability characteristics...
September 5, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28883026/group-o-low-titre-only-emergency-donor-panels-for-small-combat-teams
#10
Heidi Doughty, A Maguire, G Fitchett, P Parker
INTRODUCTION: Military elements increasingly operate in small teams in remote areas with no immediate blood product support. Planners and operators may endorse collection of fresh whole blood from pretested donors in emergency situations. The biggest risk of transfusion is the accidental use of ABO incompatible blood which can be fatal. The risk may be mitigated by using only group O LOw (OLO) titre donors with plasma containing low levels of the naturally occurring antibody to group A and B red cells...
September 6, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28881804/altered-erythropoiesis-and-decreased-number-of-erythrocytes-in-children-with-neuroblastoma
#11
Fabio Morandi, Sebastiano Barco, Sara Stigliani, Michela Croce, Luca Persico, Corrado Lagazio, Francesca Scuderi, Maria Luisa Belli, Mariapina Montera, Giuliana Cangemi, Sarah Pozzi, Valentina Rigo, Paola Scaruffi, Loredana Amoroso, Giovanni Erminio, Vito Pistoia, Silvano Ferrini, Maria Valeria Corrias
Neuroblastoma (NB) is a pediatric tumor presenting at diagnosis either as localized or metastatic disease, which mainly involves the bone marrow (BM). The physical occupancy of BM space by metastatic NB cells has been held responsible for impairment of BM function. Here, we investigated whether localized or metastatic NB may alter hematopoietic lineages' maturation and release of mature cells in the periphery, through gene expression profiling, analysis of BM smears, cell blood count and flow cytometry analysis...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28880867/oral-tetrahydrouridine-and-decitabine-for-non-cytotoxic-epigenetic-gene-regulation-in-sickle-cell-disease-a-randomized-phase-1-study
#12
RANDOMIZED CONTROLLED TRIAL
Robert Molokie, Donald Lavelle, Michel Gowhari, Michael Pacini, Lani Krauz, Johara Hassan, Vinzon Ibanez, Maria A Ruiz, Kwok Peng Ng, Philip Woost, Tomas Radivoyevitch, Daisy Pacelli, Sherry Fada, Matthew Rump, Matthew Hsieh, John F Tisdale, James Jacobberger, Mitch Phelps, James Douglas Engel, Santhosh Saraf, Lewis L Hsu, Victor Gordeuk, Joseph DeSimone, Yogen Saunthararajah
BACKGROUND: Sickle cell disease (SCD), a congenital hemolytic anemia that exacts terrible global morbidity and mortality, is driven by polymerization of mutated sickle hemoglobin (HbS) in red blood cells (RBCs). Fetal hemoglobin (HbF) interferes with this polymerization, but HbF is epigenetically silenced from infancy onward by DNA methyltransferase 1 (DNMT1). METHODS AND FINDINGS: To pharmacologically re-induce HbF by DNMT1 inhibition, this first-in-human clinical trial (NCT01685515) combined 2 small molecules-decitabine to deplete DNMT1 and tetrahydrouridine (THU) to inhibit cytidine deaminase (CDA), the enzyme that otherwise rapidly deaminates/inactivates decitabine, severely limiting its half-life, tissue distribution, and oral bioavailability...
September 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28879696/clinical-usefulness-of-measuring-red-blood-cell-distribution-width-in-patients-with-hepatitis-b-virus-related-acute-on-chronic-liver-failure
#13
Lei Jin, Yufeng Gao, Jun Ye, Guizhou Zou, Xu Li
BACKGROUND: The red blood cell distribution width (RDW) is increased in chronic liver disease, but its clinical significance in hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) is still unclear. The aim of the present study was to investigate the clinical significance of RDW in HBV-ACLF patients. METHODS: The medical records of HBV-ACLF patients who were admitted to The Second Affiliated Hospital of Anhui Medical University between April 2012 and December 2015 were retrospectively reviewed...
September 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28876549/useful-laboratory-markers-for-the-diagnosis-of-bone-marrow-involvement-by-malignant-lymphoma
#14
K Nishimura, R Ota, Y Mikajiri, K Takahashi, S Sugishima, T Eto
INTRODUCTION: This study aimed to investigate the effect of bone marrow involvement by malignant lymphoma (BMI) on laboratory data and to determine the useful laboratory markers for diagnosing BMI. METHODS: We compared laboratory data between patients with and without BMI. We performed multivariate logistic regression and receiver operating characteristic (ROC) analyses to evaluate the diagnostic values of independent predictors. RESULTS: In the BMI group, platelets in peripheral blood (PLT) and megakaryocyte count in bone marrow (MgK) were significantly lower than those in the non-BMI group (PLT, P < ...
September 6, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28873251/imported-fire-ant-envenomation-a-clinicopathologic-study-of-a-recognizable-form-of-arthropod-assault-reaction
#15
Gabriel Villada, Farhaan Hafeez, Jose Ollague, Carlos H Nousari, George W Elgart
BACKGROUND: Skin reactions to the sting of the imported fire ant have characteristic clinicopathological features. METHODS: One case of experimental envenomation was prospectively followed during 48 hours, with biopsies. In addition, six cases from our laboratory were retrospectively evaluated histopathologically for the following features: spongiosis, exocytosis (and type of cells), pustule formation, erosion/ulceration, epidermal necrosis, scale/crust, papillary dermal edema, inflammatory dermal infiltrate (cell type, density, depth, distribution, shape), red blood cell extravasation, vasculopathy, vasculitis...
September 5, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28872499/mean-platelet-volume-red-cell-distribution-width-and-neutrophil-to-lymphocyte-ratio-before-and-after-surgery-in-patients-with-carotid-body-tumors
#16
Nazim Bozan, Ömer Faruk Kocak, Mehmet Emre Dinc, Canser Yilmaz Demir, Mahfuz Turan, Ahmet Faruk Kiroglu
OBJECTIVE: Carotid body tumors (CBTs) are rare hypervascular benign tumors that originate from the paraganglia at the carotid bifurcation. The red cell distribution width (RDW), neutrophil-to-lymphocyte ratio (NLR), and mean platelet volume (MPV) may serve as markers in inflammatory, cardiovascular, and neoplastic diseases. However, their prognostic value in CBTs is unknown. The purpose of this study was to assess the leukocyte count, MPV, RDW, and NLR before and after surgery in patients with CBTs...
September 1, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28869150/the-association-between-hematological-parameters-and-metabolic-syndrome-in-iranian-men-a-single-center-large-scale-study
#17
Jamal Ahmadzadeh, Behnam Mansorian, Mohammad Mirza-Aghazadeh Attari, Ira Mohebbi, Raha Naz-Avar, Karaim Moghadam, Seyyed Adel Khoshbou Ghareh-Bagh
AIMS: Some studies have demonstrated that metabolic syndrome is associated with hematological parameters. The present study explores the relationship between hematological parameters and numbers of metabolic syndrome conditions in Iranian men. METHODS: This cross-sectional study included 11,114 participants who were professional drivers of commercial motor vehicles, and were enrolled in the Iranian Health Surveys between 2014 and 2016. Diagnosis of metabolic syndrome was made according to International Diabetes Federation criteria...
August 23, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28861306/the-predictive-value-of-platelet-to-lymphocyte-and-neutrophil-to-lymphocyte-ratio-in-determining-urethral-stricture-after-transurethral-resection-of-prostate
#18
Murat Gül, Emre Altıntaş, Mehmet Kaynar, Muhammet Serdar Buğday, Serdar Göktaş
OBJECTIVE: The pathology of urethral stricture disease is still unclear however progressive inflammation may contribute to the development of urethral stricture. The platelet-to- lymphocyte ratio (PLR) is a new and simple marker that indicates inflammation. In this study we aimed to investigate the predictive value of neutrophil to lymphocyte ratio (NLR) and PLR in patients with urethral stricture who underwent transurethral resection of prostate (TURP). MATERIAL AND METHODS: A total of 208 patients who underwent bipolar-TURP were included in this study...
September 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28860333/using-hyperpolarized-129-xe-mri-to-quantify-regional-gas-transfer-in-idiopathic-pulmonary-fibrosis
#19
Jennifer M Wang, Scott H Robertson, Ziyi Wang, Mu He, Rohan S Virgincar, Geoffry M Schrank, Rose Marie Smigla, Thomas G O'Riordan, John Sundy, Lukas Ebner, Craig R Rackley, Page McAdams, Bastiaan Driehuys
BACKGROUND: Assessing functional impairment, therapeutic response and disease progression in patients with idiopathic pulmonary fibrosis (IPF) continues to be challenging. Hyperpolarized (129)Xe MRI can address this gap through its unique capability to image gas transfer three-dimensionally from airspaces to interstitial barrier tissues to red blood cells (RBCs). This must be validated by testing the degree to which it correlates with pulmonary function tests (PFTs) and CT scores, and its spatial distribution reflects known physiology and patterns of disease...
August 31, 2017: Thorax
https://www.readbyqxmd.com/read/28858850/mortalitypredictors-org-a-manually-curated-database-of-published-biomarkers-of-human-all-cause-mortality
#20
Maximus V Peto, Carlos De la Guardia, Ksenia Winslow, Andrew Ho, Kristen Fortney, Eric Morgen
Biomarkers of all-cause mortality are of tremendous clinical and research interest. Because of the long potential duration of prospective human lifespan studies, such biomarkers can play a key role in quantifying human aging and quickly evaluating any potential therapies. Decades of research into mortality biomarkers have resulted in numerous associations documented across hundreds of publications. Here, we present MortalityPredictors.org, a manually-curated, publicly accessible database, housing published, statistically-significant relationships between biomarkers and all-cause mortality in population-based or generally healthy samples...
August 31, 2017: Aging
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