Skin biopsy polymerase chain reaction for rapid microbiological diagnosis in patients with purpura fulminans

2017 ◽  
Vol 177 (4) ◽  
pp. e154-e155 ◽  
Author(s):  
T. de Risi-Pugliese ◽  
A. Servy ◽  
J.-W. Decousser ◽  
B. Nebbad ◽  
M. Desroches ◽  
...  
2015 ◽  
pp. civ655 ◽  
Author(s):  
Jonathan G. Crisp ◽  
Sukhjit S. Takhar ◽  
Gregory J. Moran ◽  
Anusha Krishnadasan ◽  
Scot E. Dowd ◽  
...  

2013 ◽  
Vol 30 (6) ◽  
pp. e276-e277 ◽  
Author(s):  
Caroline Beau ◽  
Natalia Vlassova ◽  
Jean Sarlangue ◽  
Olivier Brissaud ◽  
Christine Léauté-Labrèze ◽  
...  

2015 ◽  
Vol 25 (1) ◽  
pp. 68-75 ◽  
Author(s):  
B. Suberviola ◽  
A. Marquez-Lopez ◽  
A. Castellanos-Ortega ◽  
C. Fernandez-Mazarrasa ◽  
M. Santibanez ◽  
...  

2015 ◽  
Vol 4 (2) ◽  
pp. 41-48
Author(s):  
Mohammad Mahmudur Rahman ◽  
Md Akram Ullah Sikder ◽  
Lubna Khondker ◽  
Abu Hena Chowdhury ◽  
Mohammad Kamal Hossain ◽  
...  

Leprosy caused by Mycobacterium leprae, is still considered a major health problem in many developing countries. The routine bacteriological test on the demonstration of acid-fast bacilli in skin smears is not sufficiently sensitive or specific in the paucibacillary leprosy patients. To detect DNA of Mycobacterium leprae by Polymerase Chain Reaction (PCR) from skin biopsy specimen as a means of diagnosis of paucibacillary leprosy. It was a cross-sectional study of clinically diagnosed 33 cases of Paucibacillary leprosy patients. Laboratory works were performed in the Department of Microbiology and Immunology and Department of pathology; Bangabandhu Sheikh Mujib Medical University (BSMMU) and Leprosy Control Institute and Hospital, Mohakhali, Dhaka from November 2013 to June 2015. It was observed that the mean age of patients was found 30.9±13.7 years, 19(57.6%) patients had two to five skin lesions, all (100%) patients had tuberculoid type of leprosy, all (100%) patients had loss of sensation and 18(54.5%) patients had nerve thickening. Regarding slit skin smear test, it was observed that all (100%) patients were slit skin smear negative for leprosy bacilli, 8(24.2%) patients had positive skin biopsy for histopathology and 15(45.5%) patients had positive skin biopsy for PCR. The validity of PCR for identification of paucibacillary leprosy correlated with sensitivity 100%, specificity 72%, accuracy 78.8%, positive predictive value 53.3% and negative predictive value 100%. Polymerase chain reaction (PCR) has definite value in the diagnosis of paucibacillary leprosy and can be regarded as a sensitive and specific diagnostic modality. CBMJ 2015 July: Vol. 04 No. 02 P: 41-48


Author(s):  
Tímea Mosolygó ◽  
Krisztián Laczi ◽  
Gabriella Spengler ◽  
Katalin Burián

From gene expression studies to identifying microbes quantitative polymerase chain reaction (qPCR) is widely used in research and medical diagnostics. In transmittable diseases like the Ebola outbreak in West Africa (2014-2016), or the present SARS-CoV2 pandemic qPCR plays a key role in the detection of infected patients. Although the technique itself is decades old with reliable approaches (eg. TaqMan essay) in the diagnosis of pathogens many people showed distrust in it during the SARS-CoV2 outbreak. This came mainly from not understanding or misunderstanding the principles of qPCR. This situation motivated us to design a simple laboratory practical class, in which students have opportunities to understand the underlying principles of qPCR and its advantages in microbiological diagnosis. Moreover, during the exercise, students can develop skills such as handling experimental assays, and the ability to solve problems, discuss their observations. Finally, this activity brings them closer to the clinical practice and they can see the impact of the science on real life. The class is addressed to undergraduate students of biological sciences.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Mark P. Nicol ◽  
Rachel C. Wood ◽  
Lesley Workman ◽  
Margaretha Prins ◽  
Cynthia Whitman ◽  
...  

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