scholarly journals Use of Modern molecular Genetic Methods to Study Genetic Diversity of Hepatitis B Strains on the Territory of Khabarovsk City

2016 ◽  
Vol 15 (2) ◽  
pp. 40-42
Author(s):  
V. O. Kotova ◽  
L. A. Balahotseva ◽  
E. Yu. Sapega ◽  
O. E. Trotsenko ◽  
T. A. Zaitseva

A molecular genetic analysis of 23 samples of blood serum/plasma taken from patients with chronic hepatitis B was performed. The dominant genotype among studied group was genotype D (71.4%); the rate of genotype A and genotype C was 10.7 and 17.9%, respectively.

2020 ◽  
Vol 6 (9) ◽  
pp. 37-44
Author(s):  
Ya. Sboeva ◽  
N. Pystogova ◽  
S. Boronnikova

74 ISSR-PCR markers were isolated in four studied populations of Scots pine in the Perm Territory, of which 67 (P95=0.905) were polymorphic. The studied populations are characterized by high rates of genetic diversity (P95=0.905; HE=0.187; ne=1.402; R=12). It was found that among the studied 4 populations of P. sylvestris, the population from the Gainskiy forestry (P95=0.842; HE=0.212; ne=1.358; R=1) possesses the highest genetic diversity, and the population from the Perm forestry (P95=0.800; HE=0.173; ne=1.282; R=1). A comparative analysis of the literature and the data obtained showed that the indicators of the genetic diversity of the studied populations of Scots pine in the Perm region have average values for the species (P95=0.905; HE=0.187; na=1.905; ne=1.402).


Author(s):  
Salman Khan ◽  
Molly Madan

Objective:- Hepatitis B is noteworthy medical issues that may include the late continuation of liver cirrhosis and hepatocellular carcinoma. The present study aimed for the detection and diffrentiation of Hepatitis B virus HBsAg inactive non-replicative carriers, HBeAg-positive inactive replicative carriers, active carriers & HBeAg-negative chronic hepatitis B by Real Time PCR and their genotyping Methods: This research conducted on 245 positive for HBsAg, 118 (48.16 %) were male and 127 (51.84%) were female patients, which was performed in central research station labortory of Microbiology at netaji subhash Chandra Bose subharti Medical College and Hospital, Meerut Between march 2016 to November 2017 The sera were separated and screened for HBsAg by ELISA kit. Positive samples for HBsAg were tested for HBeAg ELISA kit and DNA Viral load then sequenced for genotying Results:. Of the 245 HBsAg Positive case 55 (1.12%) were HBeAg positive. In 16 PCR positive and HBV genotyping, In HBsAg inactive Non-Replicative 37.5% (n=6) genotype-B and 6.25% (n=1) genotype-A, In HBeAg inactive Replicative 12.5% (n=2) genotype-B and 12.5% (n=2) genotype-A and In HBeAg Active Chronic Hepatitis B 18.75% (n=3) genotype-B and 12.5% (n=2) genotype-A were detected Conclusions: Management strategy, using HBsAg, HBeAg and HBV DNA viral load, seems adequate for the confirmation and diffrentiation of Hepatitis B virus inactive, active carriers & HBeAg-negative chronic hepatitis B patients and genotype B was more prevalent in comparission to genotype A. Distribution of carriers & genotypes, help physicians to prescribe proper antiviral/interferon therapy according to current genotyping pattern in this region Keywords: Hepatitis B virus, Carrier State, HBsAg, HBeAg, RT-PCR


2011 ◽  
pp. 25-29
Author(s):  

Aims: To measure the prevalence of HBV genotypes in chronic hepatitis B patients and their relation to HBeAg and HBV DNA level. Methods: 81 patients were enrolled in this study from January 2009 to December 2010. Clinical, laboratory data were collected during the patient’s hospitalization. Sera were quantitatively tested for HBeAg and HBV DNA. HBV genotyping was made by real-time PCR. Results: Among the 81 patients, 60.5% had genotype B, 26.7% had genotype C and 8.6% had mixed genotype B-C. Prevalence of symptoms (fatigue, anorexia, insomnia...) was higher in genotype C than in genotype B. Genotype C patients had positivity higher HBeAg than genotype B patients (56% vs. 38,8%, p <0.05). The rate of HBV DNA > 107 copies/mL was higher in genotype C group than in genotype B group (36% vs. 28,6%, p > 0.05). Conclusions: Most of the patients had genotypes B or C. Patients with genotype C had positive HBeAg and may be related to higher serological HBV DNA level than in genotype B.


2016 ◽  
Vol 2 (3) ◽  
pp. 261-264 ◽  
Author(s):  
Anders Krogh Broendberg ◽  
Lisbeth Noerum Pedersen ◽  
Jens Cosedis Nielsen ◽  
Henrik Kjaerulf Jensen

1992 ◽  
Vol 174 (20) ◽  
pp. 6404-6410 ◽  
Author(s):  
R J Limberger ◽  
L L Slivienski ◽  
D B Yelton ◽  
N W Charon

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