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95 protocols using rx daytona

1

Antioxidant Enzyme Activities in Blood

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GSH-Px activity in blood hemolysates was determined spectrophotometrically with an automated biochemical analyser RX-Daytona (Randox Laboratories, Crumlin, UK) using the commercial Ransel kit (Randox Laboratories, Crumlin, UK), which is based on the method of Paglia and Valentine (1967 (link)). Blood hemolysates were diluted 41-fold before being analyzed with Ransel Diluent (Diluting agent, Randox Laboratories, Crumlin, UK). GSH-Px activity was expressed as units per gram of hemoglobin (U/g Hgb). SOD activity in blood hemolysates was determined spectrophotometrically with an automatic biochemical analyser RX Daytona (Randox Laboratories, Crumlin, UK), using a commercially available Ransod kit (Randox Laboratories, Crumlin, UK), which is based on the original method of McCord and Fridovich (1969 (link)). Before the analyses, samples of hemolysates were diluted 1:200 with the Ransod Sample Diluent (0.01 mmol/L phosphate buffer, pH 7.0; Randox Laboratories, Crumlin, UK). The activity was expressed as U/g Hgb. Hemoglobin concentration was determined by the cyanmethemoglobin method using an automated hematological analyser ADVIA 120 (Siemens, Munich, Germany) (Paglia and Valentine, 1967 (link)).
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2

Spectrophotometric Glutathione Peroxidase Assay

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Glutathione peroxidase activity was measured spectrophotometrically with an automated biochemistry analyser RX Daytona (Randox, Crumlin, Great Britain) using a commercial Ransel kit (Randox, Crumlin, Great Britain), which is based on the method of Paglia and Valentine [48 (link)]. According to the method, GPX activity is determined indirectly by measuring the rate of formation of oxidized glutathione. GPX activity was expressed as units per gram of haemoglobin (U/g Hgb). Haemoglobin concentration in the whole blood haemolysates was determined spectrophotometrically by the cyano-methaemoglobin method using an automated biochemistry analyser RX Daytona (Randox, Crumlin, Great Britain).
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3

Enzymatic Antioxidant Activities in Whole Blood

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Activity of GPx in whole blood hemolysates was determined spectrophotometrically with an automated biochemical analyzer RX-Daytona (Randox, Crumlin, UK) using the commercial Ransel kit (Randox Laboratories, Crumlin, UK), which is based on the method of Paglia and Valentine (1967) . Blood hemolysates were diluted 41-fold before analyses with Ransel Diluent (Diluting agent, Randox Laboratories, Crumlin, UK). Activity of GPx was expressed as units per gram of hemoglobin (U/g Hgb). Hemoglobin concentration was determined by the cyanmethemoglobin method using automated hematological analyzer ADVIA 120 (Siemens, Munich, Germany) (Paglia and Valentine, 1967 ). SOD activity in whole blood hemolysates was determined spectrophotometrically with an automatic biochemical analyzer RX Daytona (Randox Laboratories), using commercially available Ransod kit (Randox Laboratories), which is based on the original method of McCord and Fridovich (1969) . Before analyses samples of hemolysates were diluted 1:200 with Ransod Sample Diluent (0.01 mmol/L phosphate buffer, pH 7.0; Randox Laboratories). Activity was expressed as U/g Hgb. Hemoglobin concentration was determined by the cyanmethemoglobin method using automated hematological analyzer ADVIA 120 (Siemens, Munich, Germany) (McCord and Fridovich, 1969 ).
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4

Comprehensive Metabolic Profiling of T2DM

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Blood samples were drawn following an overnight fast. Serum glucose was measured using hexokinase methodology in an automated analyser (Olympus AU640; Olympus, Germany/Rx Daytona, Randox Laboratories, Wülfrath, Germany). Serum total, low-density lipoprotein- and high-density lipoprotein-cholesterol and trigaclycerol concentrations were collected in serum tubes and measured using enzymatic reagents (Olympus AU640; Olympus, Germany/Rx Daytona, Randox Laboratories). In T2DM subjects, serum insulin was measured using an automated monoclonal antibody-based two-site immunoenzymometric assay (AIA-1800 system; Tosoh Europe NV, Tessenderlo, Belgium), and glycosylated haemoglobin was measured with an automated HPLC instrument-reagent system (model HLC-723 G7; Tosoh Europe NV).
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5

Comprehensive Metabolic Biomarker Assessment

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A clinical bioanalyser (RX Daytona; Randox Laboratories) was used to measure levels of glucose, TAG and total and HDL-cholesterol in serum samples (19) . LDL-cholesterol levels were calculated as (Total cholesterol/HDL-cholesterol) -(TAG/2•2). Insulin, leptin and TNFα levels were measured using a biochip array system (Evidence Investigator; Randox Laboratories). Adiponectin levels were measured using ELISA (ALPCO Diagnostics kit; ALPCO) and homocysteine levels using a flourescence polarisation immunoassay. A detailed description of the lipid extraction methodology and fatty acid analysis has been outlined elsewhere (20) . The National Cholesterol Education Programme's Adult Treatment Panel III criterion was applied to evaluate risk for the MetS (21) .
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6

Comprehensive Blood Lactate and Glucose Measurement

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Tubes containing EDTA and sodium fluoride were used for blood sampling. EDTA plasma was used for l-lactate and d-lactate, and plasma from sodium fluoride tubes were used for glucose analysis. The plasma l-lactate (levogyre) and glucose were determined using a commercial enzymatic kit (l-lactate-LAC and Randox Glucose GOD-PAP, respectively; Randox®, Crumlin, UK) in an automatic biochemical analyzer (Rx Daytona; Randox®). Further, a d-lactate (dextrogyre) enzyme assay (BioVision®, Milpitas, CA, USA) was used to measure the d-lactate plasma concentration.
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7

Plasma Lipid and Glucose Analysis

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Clinical chemistry analysis was performed using a RxDaytona™ chemical analyser autoanalyser (Randox Laboratories, Crumlin, UK) and Randox reagents. The plasma lipid profile, glucose and insulin were measured as previously described [15 (link)].
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8

Comprehensive Biomarker Analysis in Animal Study

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At the end of the study, blood samples were collected for haematology, clinical pathology investigations and biomarker analysis. The haematology analyzer (model ABX Micros ESV 60; HORIBA Instruments Inc., Irvine, CA, USA) was used for haematological evaluation. Clinical chemistry parameters were estimated using the RX Daytona+ (Randox Laboratories, Kearneysville, WV, USA) instrument. Commercially available enzyme-linked immunosorbent assay kits (KinesisDx kits; Krishgen Biosystems, Mumbai, India) were used to quantify insulin, leptin, adiponectin and free fatty acids. At the end of the study, all animals were subjected to a detailed gross necropsy examination. External body surfaces, orifices and cavities such as abdominal, thoracic and cranial were included in the examination.
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9

Lipid Biomarker Measurement Protocol

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Plasma cholesterol, LDL cholesterol, apo B-100, apo A1, small dense LDL, and triglyceride assays were all perfomed on the RX Daytona clinical analyser (Randox, Laboratories Ltd., Antrim, UK). All assays were performed with authentic standards and controls.
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10

Hematological and Biochemical Profiling Protocol

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Hematological parameters including the red blood cell (RBC), the white blood cell (WBC), hemoglobin (Hb), monocytes, lymphocytes, eosinophils, basophils, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), hematocrit (HCT), mean cell hemoglobin concentration (MCHC), and platelets count were analyzed with the help of an automated hematology analyzer (Sysmax-1800i, Japan). Biochemical parameters of glucose, cortisol, creatinine, urea, low-density lipoproteins (LDL), high-density lipoproteins (HDL), total protein, and albumin were analyzed by using a fully automated Clinical chemistry analyzer (Rx Daytona, Randox, United Kingdom). MCV, MCH, and MCHC were calculated using the following equations: MCV(fl)=(Hct×10)RBC
MCH(pg)=Hb(ing/L)RBC(inmillions/μL)
MCHC(g/dL)=(Hb×10)Hct
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