Signature of chronic hepatitis B virus infection in nails and hair

2020 ◽  
Author(s):  
Haruki Komatsu ◽  
Ayano Inui ◽  
Enkhtaivan Odmaa ◽  
Yoshinori Ito ◽  
Shuichiro Umetsu ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Real Time ◽  
Real Time Pcr ◽  
Hbv Dna ◽  
Chimeric Mice ◽  
Hair Samples ◽  
B Virus ◽  
Chronic Hbv ◽  
Immunochemical Staining

Abstract Background: Hepatitis B virus (HBV) is detected in extrahepatic tissues of individuals with HBV infection. Whether nails and hair contain HBV has been unknown. Methods: We examined two patient groups: those with chronic HBV infection alone (n=71), and those with both chronic HBV and hepatitis delta virus (HDV) infections (n=15). HBV DNA in the patients' fingernails and hair were measured by real-time PCR. Hepatitis B surface antigen (HBsAg) of fingernails was evaluated by an enzyme immunoassay. HDV RNA in fingernails was measured by real-time PCR. Immunochemical staining was performed on nails. We used chimeric mice with humanized livers to evaluate the infectivity of nails.Results: Of the 71 pairs of HBV-alone nail and hair samples, 70 (99%) nail and 60 (85%) hair samples were positive for β-actin DNA. Of those 70 nail samples, 65 (93%) were HBV DNA-positive. Of the 60 hair samples, 49 (82%) were HBV DNA-positive. The serum HBV DNA level of the nail HBV DNA-positive patients was significantly higher than that of the nail HBV DNA-negative patients. The hair HBV DNA-positive patients' serum HBV DNA level was significantly higher compared to the hair HBV DNA-negative patients. The nail HBV DNA level was significantly higher than the hair HBV DNA level. The nails and hair HBV DNA levels were correlated (r=0.325, p<0.05). A phylogenetic tree analysis of the complete genome sequence of HBV isolated from nails and hair identified the infection source. Of the 64 nail samples, 38 (59%) were HBsAg-positive. All 15 pairs of chronic HBV/HDV infection nail and hair samples were β-actin DNA-positive. However, nail HBV DNA was detected in two patients (13%). None of the 15 patients were positive for hair HBV DNA. Nail HDV RNA was detected in three patients (20%). Of the 15 patients, eight (53%) were nail HBsAg-positive. HBsAg and hepatitis delta (HD) antigen were detected in the nails by immunochemical staining. Chimeric mice were not infected with PBS containing HBsAg and HBV DNA elucidated from nails.Conclusions: Nails and hair were the reservoir of HBV DNA. Moreover, nails can contain HBsAg, HDV RNA, and HD antigen.

scholarly journals Detection of Hepatitis B Virus DNA in Chronic HBV Carriers and Correlation with HBeAg

2017 ◽  
Vol 15 (2) ◽  
pp. 33-36 ◽  
Author(s):  
Shamima Akther ◽  
Md Anwar Husain ◽  
HS Mubarak Hossain
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Real Time ◽  
Real Time Pcr ◽  
Chronic Infection ◽  
Hbv Dna ◽  
B Virus ◽  
Study Population ◽  
Chronic Hbv ◽  
The Mean

Background: Chronic infection with hepatitis B virus causes a spectrum of diseases ranging from asymptomatic infective state to cirrhosis and hepatocellular carcinoma. The detection and quantification of HBV DNA plays an important role in diagnosing HBV infection as well as monitoring therapeutic responses.Methods: The aim of this study was to detect and quantited HBV DNA by real time PCR and to find out correlation HBeAg with HBV DNA in chronic carriers: The present study carried out among 61 previously diagnosed chronic hepatitis B patients.Results: The mean age of study population was 29.20 years. Among the 61 cases, 13(21.3%) were HBeAg positive and 48(78.7%) were HBeAg negative. By real time PCR, DNA detected in 45(73.8%) patients and 16(26.2%) patients were undetected. Association of HBeAg and HBV DNA was observed in 13 HBeAg positive cases, where 12(92.3%) had detectable DNA and in 48 HBeAg negative patients, 33(68.8%) had detectable DNA while 15(31.2%) were undetected. The present study observed a higher viral load (105copies/ml) among HBeAg positive patients (84.6%) than HBeAg negative patients (12.5%).Conclusion: The present study observed that, there was positive correlation among HBeAg and HBV DNA in chronic HBV carriers. However, there was some discordance observed among HBeAg and HBV DNA. Therefore, in addition to HBeAg, HBV DNA should be assessed for appropriate evaluation of CHB carriers.Chatt Maa Shi Hosp Med Coll J; Vol.15 (2); Jul 2016; Page 33-36

scholarly journals Real Time PCR HBV-DNA Analysis in HBsAg Positive Patients

2015 ◽  
Vol 10 (2) ◽  
pp. 95-99
Author(s):  
Wasila Rahman ◽  
Muhammad Rabiul Hossain ◽  
Arif Ahmed Khan ◽  
Debashish Saha ◽  
SM Mahbubul Alam ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Antiviral Therapy ◽  
Real Time ◽  
Real Time Pcr ◽  
Armed Forces ◽  
Hbv Dna ◽  
Health Concern ◽  
B Virus ◽  
Pcr Method

Introduction: The hepatitis B virus is a global public health concern and leading cause of chronic liver disease in Bangladesh. For the diagnosis and monitoring of treatment of Hepatitis B virus infection, HBV-DNA detection and quantification is now extensively used worldwide.Objectives: The objective of this study was to detect HBV-DNA by real time PCR method in HBsAg positive patients, to compare the results of HBVDNA detection with HBeAg and Anti-HBe and to monitor the response after antiviral therapy in chronic hepatitis B patients and also to observe the intensity of hepatitis B infection in relation to age and sex.Methods: This was a cross sectional type of study conducted in Armed Forces Institute of Pathology (AFIP), Dhaka Cantonment. In this study, 56 sera of HBsAg positive patients were selected who all were subjected to do HBV-DNA (real time PCR) analysis during the period of 29 July to 30 0ctober, 2013.Results: Out of 56 HBsAg positive patients, HBV-DNA was detected in 34 patients. Among these, 8 (23.5%) patients were HBeAg positive, 16 (47%) patients were anti-HBe positive and 10 (29.5%) were negative for both HBeAg and anti-HBe. Age limit of patients was up to 60 years. HBV-DNA positive patients showed male predominance; 26 (76.5%) patients were male and 8 (23.5%) patients were female. Mean age of the patients was 35±14 years. Among 56 HBsAg positive patients, fifteen were receiving antiviral therapy. Out of them, HBV-DNA was decreased among 4 patients and could not be detected among 11 patients.Conclusion: Real time PCR method of detection of HBV-DNA is very important in patients who are HBeAg negative and this method is also applied to monitor treatment response to antivirals and to detect occult HBV infections immune control phase and also to detect reactivation of HBV cases.Journal of Armed Forces Medical College Bangladesh Vol.10(2) 2014

scholarly journals COBAS AmpliPrep-COBAS TaqMan Hepatitis B Virus (HBV) Test: a Novel Automated Real-Time PCR Assay for Quantification of HBV DNA in Plasma

2007 ◽  
Vol 45 (3) ◽  
pp. 828-834 ◽  
Author(s):  
T. Allice ◽  
F. Cerutti ◽  
F. Pittaluga ◽  
S. Varetto ◽  
S. Gabella ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Real Time ◽  
Real Time Pcr ◽  
Hbv Dna ◽  
Pcr Assay ◽  
Cobas Taqman ◽  
B Virus

scholarly journals Hepatitis B virus DNA in Blood Donors Positive of Anti-Hepatitis B Core Antibodies and Negative for Surface Antigen in Hawler Major Blood Bank, Kurdistan Region, Iraq

2018 ◽  
Vol 60 (1) ◽  
pp. 57-61
Author(s):  
Rasha N. Hassan ◽  
Ali H. Hussain
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Real Time ◽  
Real Time Pcr ◽  
Blood Donors ◽  
Hbv Dna ◽  
Occult Hepatitis ◽  
B Virus ◽  
Occult Hepatitis B ◽  
Hbs Ag

Background: Occult Hepatitis B virus infection (OBI) among blood donors is an important medical concern.Objectives: This study was done to detect the presence of occult hepatitis B virus infections among blood donors with negative hepatitis B surface antigen and positive total anti-hepatitis B core antibodies in Hawler Major Blood Bank in Hawler city/Kurdistan Region of Iraq.Methods: A total number of 12,185 blood donors in Hawler Major Blood Bank were screened for HBsAg and total anti-HBcAb using ELISA technique, and then positive results were retested by confirmatory technique by Chemiluminescence assay. All HBsAg-/HBcAb+ were selected as the study group; HBV DNA was tested among HBsAg-/HBcAb+ by conventional PCR and Real time-PCR. Clinical and demographic data of study group were recorded.Results: Among the 12,185 blood donors, HBsAg was positive in 27 (0.22%) donors using Chemiluminescence assay, the frequency of HBs Ag -/ HBc Ab+ was 276 (2.27%), and then the total prevalence of HBV infection in all blood donors was 2.49%. Among the 276 HBs Ag-/HBcAb+, occult hepatitis B virus infection (OBI) was positive in 39.1% (108/276) using conventional PCR and Real time-PCR techniques, while the prevalence among all blood donors (n=12,185) was 0.09%. Testing of HBV-DNA in HBs Ag -/ HBc Ab+ group for OBI was done by qualitative PCR (positive HBV-DNA=102/276) or by quantitative Real time-PCR (positive HBV-DNA=108/276).Conclusions: The OBI is frequently detected among blood donors in Hawler city especially those have HBsAg-/HBcAb+, and the total anti-HBcAb is an essential serological marker for screening HBV among blood donors. The risk factors for developing OBI among blood donors should be elucidated.   الحامض النووي  الريبوزي منقوص الأكسجين للفايروس الكبدي نوع ب في دم المتبرعين والموجب لأضداد اللب للفايروس وسالب للستضد السطحي للفايروس في مصرف الدم الرئيسي في اربيل/كردستان العراق  رشا نزار حسن علي حاتم حسين نظرة اولية: ان تواجد الاصابة  بالفايروس الكبدي نوع ب لدى المتبرعين بالدم يعتبر من الحالات الطبية التي يجب الانتباه اليها. الاهداف: تم اجراء هذه الدراسة على المتبرعين بالدم في مصرف الدم الرئيسي في مدينة اربيل/كردستان العراق , لغرض التحري عن وجود الاصابات الكبدية الفايروسية نوع ب المخفية لدى المتبرعين بالدم والذين يكون المستضاد السطحي الفايروسي الكبدي نوع ب (HBsAg) سالبا لديهم ويكون المضاد اللبي الكلي لنفس الفايروس(anti-HBcAb) موجبا. طريقة البحث: تم فحص اثنا عشر الفا ومائه وخمس وثمانين متبرع بالدم في مصرف الدم الرئيسي في مدينة اربيل لغرض الكشف عن (HBsAg) و  (anti-HBcAb) وان النتائج الموجبة تم اعادة فحصها بطرق فحص تأكيدية. ان كل المتبرعين ذوو النتائج (السالبة HBsAg ) / و (الموجبة anti-HBcAb) تم انتقئهم كمجموعة الدراسة وتم فحص وجود الحامض النووي  الريبوزي منقوص الأكسجين للفايروس الكبدي نوع ب لديهم في الدم بطريقتين: طريقة تفاعل البوليميراز المتسلسل التقليدية وطريقة تفاعل البوليميراز المتسلسل اللحظي. كما تم تسجيل البيانات الديموغرافية والسريرية لمجموعة الدراسة. النتائج:  لدى فحص المتبرعين البالغ عددهم  اثنا عشر الفا ومائه وخمس وثمانين متبرع تبين وجود سبعة وعشرون اصابة (0.02%)  بالمستضاد (HBsAg) اما عدد المتبرعين الذين ليس لديهم  / HBsAg والموجبة للمضاد anti-HBcAb  فقد كان 276 (2.27%) وقد تبين ان نسبة انتشار الخمج البدي الفايروسي نوع ب لدى المتبرعين كان 2.49%. عند فحص مجموعة الدراسة البالغ عددها 276 والذين كانت نتيجة فحصهم موجبة للمضاد /HBcAb,وسالبة للمستضاد HBsAg ,تبين وجود الخمج الفايروسي الكبدي نوع ب المخفي في 39.1% (108/276),  بينما كانت نسبة انتشار نفس الخمج لدى مجموع المتبرعين الكلي البالغ 12185 هو 0.09%. لقد كانت نتيجة فحص وجود الحامض النووي  الريبوزي منقوص الأكسجين للفايروس الكبدي نوع ب بالطريقة القليدية هي 102 متبرع من مجموعة الدراسة الباغة 276 اما النتيجة لنفس مجموعة الدراسة لنفس الحامض النووي بطريقة تفاعل البوليميراز المتسلسل اللحظي كانت 108. الاستنتاج: لقد بينت هذه الدراسة وجود وجود الخمج الفايروسي الكبدي نوع ب المخفي بصورة متكررة لدى المتبرعين بالدم في مدينة اربيل وخاصة الذين تكون حالتهم  موجبة للمضاد /HBcAb, وسالبة للمستضاد HBsAg كما بينت الدراسة ان فحص  المضاد اللبي للفايروس الكبدي نوع ب هو ضروري عند التحري عن وجود وجود الخمج الفايروسي الكبدي نوع ب لدى المتبرعين بالدم, كما انه من الضروري التقصي عن عوامل الخطورة التي تؤدي الى الاصابة بالخمج الفايروسي الكبدي نوع ب المخفي. الكلمات المفتاحية: المتبرعون بالدم, الخمج الفايروسي الكبدي نوع ب المخفي, مدينة اربيل, مصرف الدم, تفاعل البوليمراز المتسلسل التقليدي واللحظي

Rapid detection and quantitation of hepatitis B virus DNA by real-time PCR using a new fluorescent (FRET) detection system

2004 ◽  
Vol 30 (2) ◽  
pp. 191-195 ◽  
Author(s):  
Sani Hussein Aliyu ◽  
Muktar Hassan Aliyu ◽  
Hamisu M Salihu ◽  
Surendra Parmar ◽  
Hamid Jalal ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Real Time ◽  
Real Time Pcr ◽  
Rapid Detection ◽  
Detection System ◽  
Hepatitis B Virus Dna ◽  
B Virus
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