scholarly journals Peptide ELISA and FRET-qPCR Identified a Significantly Higher Prevalence of Chlamydia suis in Domestic Pigs Than in Feral Swine from the State of Alabama, USA

Pathogens ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 11
Author(s):  
Md Monirul Hoque ◽  
Folasade Adekanmbi ◽  
Subarna Barua ◽  
Kh. Shamsur Rahman ◽  
Virginia Aida ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Whole Blood ◽  
Feral Swine ◽  
Blood Samples ◽  
Domestic Pigs ◽  
Peptide Elisa ◽  
The Usa ◽  
Chlamydia Suis ◽  
Whole Blood Samples ◽  
Obligate Intracellular Pathogen

Chlamydia suis is an important, highly prevalent, and diverse obligate intracellular pathogen infecting pigs. In order to investigate the prevalence and diversity of C. suis in the U.S., 276 whole blood samples from feral swine were collected as well as 109 fecal swabs and 60 whole blood samples from domestic pigs. C. suis-specific peptide ELISA identified anti-C. suis antibodies in 13.0% of the blood of feral swine (26/276) and 80.0% of the domestic pigs (48/60). FRET-qPCR and DNA sequencing found C. suis DNA in 99.1% of the fecal swabs (108/109) and 21.7% of the whole blood (13/60) of the domestic pigs, but not in any of the assayed blood samples (0/267) in feral swine. Phylogenetic comparison of partial C. suis ompA gene sequences and C. suis-specific multilocus sequencing typing (MLST) revealed significant genetic diversity of the C. suis identified in this study. Highly genetically diverse C. suis strains are prevalent in domestic pigs in the USA. As crowding strongly enhances the frequency and intensity of highly prevalent Chlamydia infections in animals, less population density in feral swine than in domestic pigs may explain the significantly lower C. suis prevalence in feral swine. A future study is warranted to obtain C. suis DNA from feral swine to perform genetic diversity of C. suis between commercial and feral pigs.

Steadiness/stability of antiepileptic drugs in serum, plasma and whole-blood samples under various storage methods

2010 ◽  
Vol 41 (02) ◽  
Author(s):  
N Shazi ◽  
A Böss ◽  
HJ Merkel ◽  
F Scharbert ◽  
D Hannak ◽  
...  
Keyword(s):  
Antiepileptic Drugs ◽  
Whole Blood ◽  
Blood Samples ◽  
Storage Methods ◽  
Whole Blood Samples

Simultaneous detection of Epstein - Barr virus and Cytomegalovirus DNA in Mini-pooling of Whole blood Samples from Iraqi blood donors by Multiplex Real-Time PCR Assay

2020 ◽  
Vol 23 (14) ◽  
Author(s):  
Ghinwa S. Majid ◽  
Ahmed S. Abdulamir ◽  
Abbas M. Ahmed ◽  
Iman M. Aufi ◽  
Orooba I. Abdullah
Keyword(s):  
Real Time Pcr ◽  
Whole Blood ◽  
Epstein Barr Virus ◽  
Blood Donors ◽  
Simultaneous Detection ◽  
Pcr Assay ◽  
Blood Samples ◽  
Barr Virus ◽  
Whole Blood Samples ◽  
Epstein Barr

scholarly journals Determination of 19 Psychoactive Substances in Premortem and Postmortem Whole Blood Samples Using Ultra-High-Performance Liquid Chromatography–Tandem Mass Spectrometry

Separations ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 78
Author(s):  
Sevasti Karampela ◽  
Jessica Smith ◽  
Irene Panderi
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Formic Acid ◽  
Whole Blood ◽  
High Performance ◽  
Tandem Mass ◽  
Psychoactive Substances ◽  
Blood Samples ◽  
Whole Blood Samples

An ever-increasing need exists within the forensic laboratories to develop analytical processes for the qualitative and quantitative determination of a broad spectrum of new psychoactive substances. Phenylethylamine derivatives are among the major classes of psychoactive substances available on the global market and include both amphetamine analogues and synthetic cathinones. In this work, an ultra-high-performance liquid chromatography-positive ion electrospray ionization tandem mass spectrometric method (UHPLC-ESI-MS/MS) has been developed and fully validated for the determination of 19 psychoactive substances, including nine amphetamine-type stimulants and 10 synthetic cathinone derivatives, in premortem and postmortem whole blood. The assay was based on the use of 1 mL premortem or postmortem whole blood, following solid phase extraction prior to the analysis. The separation was achieved on a Poroshell 120 EC-C18 analytical column with a gradient mobile phase of 0.1% formic acid in acetonitrile and 0.1% formic acid in water in 9 min. The dynamic multiple reaction monitoring used in this work allowed for limit of detection (LOD) and lower limit of quantitation (LOQ) values of 0.5 and 2 ng mL−1, respectively, for all analytes both in premortem and postmortem whole blood samples. A quadratic calibration model was used for the 12 quantitative analytes over the concentration range of 20–2000 ng mL−1, and the method was shown to be precise and accurate both in premortem and postmortem whole blood. The method was applied to the analysis of real cases and proved to be a valuable tool in forensic and clinical toxicology.

scholarly journals Isolation and characterization of circulating pro-vascular progenitor cell subsets from human whole blood samples

2021 ◽  
Vol 2 (1) ◽  
pp. 100311
Author(s):  
Daniella C. Terenzi ◽  
Ehab Bakbak ◽  
Justin Z. Trac ◽  
Mohammad Al-Omran ◽  
Adrian Quan ◽  
...  
Keyword(s):  
Whole Blood ◽  
Progenitor Cell ◽  
Blood Samples ◽  
Human Whole Blood ◽  
Isolation And Characterization ◽  
Whole Blood Samples

Detection of melanoma cells in whole blood samples using spectral imaging and optical clearing

2020 ◽  
pp. 1-1
Author(s):  
Polina A. Dyachenko Timoshina ◽  
Leonid E. Dolotov ◽  
Ekaterina N. Lazareva ◽  
Anastasiia A. Kozlova ◽  
Olga A. Inozemtseva ◽  
...  
Keyword(s):  
Whole Blood ◽  
Spectral Imaging ◽  
Melanoma Cells ◽  
Blood Samples ◽  
Optical Clearing ◽  
Whole Blood Samples

The distribution of BrKα/RbKα peak intensity ratio in human whole blood samples

1994 ◽  
Vol 42 (3) ◽  
pp. 231-241 ◽  
Author(s):  
C. Shenberg ◽  
S. Spiegel ◽  
S. Chaitchik ◽  
P. Jordan ◽  
M. Kitzis ◽  
...  
Keyword(s):  
Whole Blood ◽  
Intensity Ratio ◽  
Peak Intensity Ratio ◽  
Blood Samples ◽  
Human Whole Blood ◽  
Peak Intensity ◽  
Whole Blood Samples

Interlaboratory comparison of results of erythrocyte protoporphyrin analysis.

1978 ◽  
Vol 24 (12) ◽  
pp. 2135-2138 ◽  
Author(s):  
K W Jackson
Keyword(s):  
Acetic Acid ◽  
Hydrochloric Acid ◽  
Ethyl Acetate ◽  
Disease Control ◽  
Whole Blood ◽  
Interlaboratory Comparison ◽  
Direct Reading ◽  
Blood Samples ◽  
Erythrocyte Protoporphyrin ◽  
Whole Blood Samples

Abstract Each of 65 laboratories analyzed 10 whole-blood samples for erythrocyte protoporphyrin by one or more of several analytical procedures. These procedures were of two types: (a) extraction of protoporphyrin from the erythrocytes into ethyl acetate/acetic acid, re-extraction into hydrochloric acid, and fluorometric measurement; or (b) direct reading in a portable fluorometer (hematofluorometer), with no pretreatment of the blood sample. Interlaboratory correlation was generally poor, especially between laboratories using extraction procedures. Hematofluorometric results intercorrelated better, but they had a low bias as compared to the extraction approach. Nationwide standardization of the test is required to assure satisfactory interlaboratory performance and to identify laboratories whose results are sufficiently accurate to be used for interpretations according to guidelines set forth by the Center for Disease Control for erythrocyte protoporphyrin testing.

scholarly journals Detection of Babesia RNA and DNA in whole blood samples from US blood donations

Transfusion ◽  
2021 ◽  
Author(s):  
Jean Stanley ◽  
Susan L. Stramer ◽  
Yasuko Erickson ◽  
Julie Cruz ◽  
Jed Gorlin ◽  
...  
Keyword(s):  
Whole Blood ◽  
Blood Donations ◽  
Blood Samples ◽  
Whole Blood Samples ◽  
Rna And Dna
Sign in / Sign up

Export Citation Format

Share Document