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19 protocols using edta coated microtainer tube

1

Comprehensive Blood Biomarker Analysis

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The blood was isolated and immediately collected in microcontainer tubes coated with clotting activators containing a gel separator (BD Biosciences, Plymouth, United Kingdom). Blood was allowed to clot for at least 30 min before serum separation by centrifugation at 3,000 rpm for 15 min. The biochemical analysis was performed using the automatic biochemical analyzer (Chemray 240) to measure albumin, alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), creatinine, urine protein, high-density lipoprotein (HDL), low-density lipoprotein (LDL), triglycerides (TC), and total cholesterol (TG) levels. For routine blood tests, the blood was isolated and immediately collected in EDTA-coated microtainer tubes (BD Biosciences). Blood cell compositions were analyzed using a ProCyte Dx Hematology Analyzer (IDEXX, Westbrook, ME, United States) following the manufacturer’s instructions.
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2

Longitudinal Blood Profile Monitoring in Mice

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A total of 61 mice from two of the colonies (32 from the University of Nebraska Medical Center, and 29 from Sanford Research) were analyzed for complete blood counts (CBC’s) at 1, 3, 6, and 12 months-of-age. Submandibular blood collection was performed as previously described [23 (link)]. Briefly, mice were restrained, and a lancet was used to puncture the submandibular vein for blood collection into EDTA-coated microtainer tubes (BD, Franklin Lakes, NJ). All samples were analyzed on the day of collection. CBC’s were performed using a Scil Vet ABC Hematology Analyzer® following the manufacturer’s suggested protocol with the mouse species card (Scil Vet, Gurnee, IL).
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3

Anti-CD41 Antibody-Induced Thrombocytopenia

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Mice were intraperitoneally injected with anti-CD41 antibody (BD Bioscience) either daily at 0.1 mg/kg body weight in PBS or on day 0 and 3 only each at 0.5 mg/kg body weight. Control mice were intraperitoneally injected with 400 μL PBS in parallel. Platelet counts were analyzed on a HemaTrue veterinary hematology analyzer (Heska Corporation) with 50 μL whole blood collected from the retro-orbital venous plexus into EDTA-coated microtainer tubes (BD Bioscience)
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4

Quantification of E/Z-4-hydroxytamoxifen in Plasma

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Liquid chromatography with tandem mass spectrometry (LC/MS-MS) was performed on a Waters Xevo TQ-XS mass spectrometer system, as described previously.201 (link) Standards were prepared using CD1 mouse plasma spiked with E/Z-4-hydroxytamoxifen-d5 internal standard (Cayman Chemicals, 34232). Peripheral blood was obtained from adult mice through retroorbital blood draws and stored in EDTA-coated Microtainer tubes (BD Biosciences, 365974). Blood samples were centrifuged for 2000g for 15 minutes at 4 °C to separate the plasma (supernatant), which was aliquoted and frozen at -20 °C before mass spectrometric analysis.
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5

Collecting and Analyzing Mouse Blood

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Peripheral blood was collected via tail vein in EDTA-coated Microtainer tubes (BD) and kept on ice. CBCs were analyzed on an Element HT5 (HESKA) instrument.
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6

Hematological and Histological Analysis

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Blood smears and complete blood cell counts (CBC) were evaluated for pathologies. For CBC, blood was collected via tail vein into EDTA-coated microtainer tubes (BD Bioscience) and analyzed on a HemaTrue veterinary hematology analyzer (Heska Corporation). Serum AST was measured using a DRI-CHEM analyzer (Heska). Peripheral blood smears were stained with Wright-Giemsa (Sigma-Aldrich). Formalin fixed tissues from lung, spleen and kidney were embedded, cut and stained with hematoxylin and eosin (H&E) for histological analysis. Microscopic analysis was conducted with a Zeiss Axiophot and images were captured using Picture Frame 2.3 software.
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7

Blood Collection for GBM Analysis

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Blood from GL26 GBM bearing mice was taken from the submandibular vein and transferred to EDTA coated microtainer tubes (BD Biosciences) or serum separation tubes (Biotang). Samples in the serum separation tubes were left at room temperature for 20 min to allow for blood coagulation before centrifugation at 2000 rpm (400 × g). Complete blood cell counts and serum chemistry for each sample were determined by in vivo animal core at the University of Michigan.
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8

Peripheral Blood Collection and Analysis

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Peripheral blood was obtained by retro-orbital bleeding using heparinized micro-hematocrit capillary tubes (Fisherbrand), and collected in EDTA-coated Microtainer tubes (BD). Complete blood counts were assessed by VetScan HM5 instrumentation. Unpaired two-tailed Student’s t-test was used for statistical analysis. *p<0.05, **p<0.01, ***p<0.001.
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9

Comprehensive Blood Cell Analysis

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Peripheral blood from the femoral vein was collected in EDTA-coated Microtainer Tubes (BD, Heidelberg, Germany). Blood counts were measured using the ProCyte Dx Hematology Analyzer (IDEXX Laboratories, Westbrook, Maine) and the Sysmex TX2000 blood analyzer (Sysmex, Kobe, Japan). Blood smears were stained with Wright-Giemsa according to standard protocols. Differential cell count analysis was obtained by the CellaVision DM 1200 (CellaVision AB, Lund, Sweden).
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10

Blood Collection and Platelet Count

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Blood was collected via tail vein into EDTA-coated microtainer tubes (BD Bioscience) and platelet counts were attained on a HemaTrue veterinary hematology analyzer (Heska Corporation; Loveland, CO).
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