Results 11 to 20 of about 553,116 (313)

Hepatitis B Antigen in Saliva

open access: yesThe Tohoku Journal of Experimental Medicine, 1973
Hepatitis B antigen (HB Ag) detectable only by means of rvdioimmnnoassay was found in saliva of 5 out of 36 mentally retarded children in an institution. Electron microscopic study of purified antigen in saliva revealed the presence of tubular and small Dane particles.
SHIRACHI, RYOICHI   +5 more
openaire   +3 more sources

Clinical performance of a new hepatitis B surface antigen quantitative assay with automatic dilution

open access: yesKaohsiung Journal of Medical Sciences, 2015
Hepatitis B virus surface antigen (HBsAg) levels reflect disease status and can predict the clinical response to antiviral treatment; however, the emergence of HBsAg mutant strains has become a challenge.
Ta-Wei Liu   +8 more
doaj   +1 more source

Humoral Immune Memory to Hepatitis B Vaccine after Primary Vaccination of Children and Adolescents in Assiut, Egypt

open access: yesOman Medical Journal, 2020
Objectives: We sought to assess the prevalence of hepatitis B virus (HBV) seroprotection among vaccinated children in the Assiut governorate, Egypt, and assess a booster dose immune memory response among non-seroprotected children.
Iman I. Salama   +11 more
doaj   +1 more source

Baseline quantitative HBcAb strongly predicts undetectable HBV DNA and RNA in chronic hepatitis B patients treated with entecavir for 10 years

open access: yesScientific Reports, 2021
The predictive effect of quantitative anti-hepatitis B core on double-negative HBV DNA and RNA remains unstudied. We observed dynamic changes in this measure in chronic hepatitis B patients receiving entecavir for 10 years, evaluating its predictive ...
Xi Zhang   +8 more
doaj   +1 more source

Hepatitis B antigen, hepatitis B antibody, and subtypes in leprosy [PDF]

open access: yesInfection and Immunity, 1977
The prevalence of hepatitis B antigen (HBsAg), hepatitis B antibody (HBsAb), and subtypes in 242 cases of leprosy is reported. Patients were divided into three subgroups, lepromatous (174), tuberculoid (55), and borderline (13). A total of 131 patients were tested on admission; the remaining 111 had been institutionalized for a period of 3 months or ...
R, Sher   +4 more
openaire   +2 more sources

Serum hepatitis B virus RNA levels as a predictor of HBeAg seroconversion during treatment with peginterferon alfa-2a

open access: yesVirology Journal, 2019
Background Hepatitis B e antigen (HBeAg) seroconversion represents an endpoint of treatment of chronic hepatitis B virus (HBV) infections. Methods We have studied whether levels of serum hepatitis B virus ribonucleic acid (HBV RNA) during pegylated ...
Wen Jia   +8 more
doaj   +1 more source

Hepatitis B e antigen-negative chronic hepatitis B [PDF]

open access: yesHepatology, 2001
Summary HBeAg-negative CHB has now a worldwide distribution, developing in the course of HBeAg-positive chronic HBV infection during or after the phase of HBeAg loss and its seroconversion to anti-HBe. It is caused by replicating noncytopathic HBV mutants either unable to produce HBeAg (precore mutants) or with down-regulated transcription of the ...
Hadziyannis, SJ, Vassilopoulos, D
openaire   +3 more sources

Current diagnosis of occult or cryptic hepatitis B [PDF]

open access: yesEinstein (São Paulo), 2005
The present article presents a kind of hepatitis B in patients whodo not have the surface antigen (HbsAg) detectable in sera. It hasbeen described in different parts of the world and is known todayas “occult or criptic hepatitis B” and its importance has
João Renato Rebello Pinho
doaj  

Seroprevalence of hepatitis B infection and associated risk factors among drug users in drop-in centers of Isfahan, Iran

open access: yesInternational Journal of Preventive Medicine, 2018
Background: Scientists perceive drug users (DUs) as a high-risk population for hepatitis B virus (HBV) infection. Effective strategies aiming at the reduction of HBV infection can be depicted when its epidemiological status is clearly defined.
Roya Taleban   +7 more
doaj   +1 more source

Changes in the Hepatitis B Surface Antigen Level According to the HBeAg Status and Drug Used in Long-term Nucleos(t)ide Analog-treated Chronic Hepatitis B Patients

open access: yesThe Korean Journal of Gastroenterology, 2021
Background/Aims: The HBsAg levels have been used to monitor the chronic hepatitis B (CHB) treatment response to antiviral therapy. On the other hand, it is unclear if the HBsAg quantification levels at each treatment point differ according to the HBeAg ...
Jong Hwa Na   +4 more
doaj   +1 more source

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