Authors: Obiomah Chinwe F, Amilo Grace I, Ifeanyichukwu Martin O, Chukwuanukwu Rebecca C, Kalu Stephen O, Ndulue Israel N1 and Akaeze Gloria O.
Nigeria is one of the countries with the highest incidence of Hepatitis B Virus (HBV) infection worldwide. The inaccessibility and unaffordability of HBV DNA quantification (viral load) assay which is the key laboratory test for therapy initiation, and monitoring is a challenge to HBV management. This study aimed at evaluating the HBV DNA viral load differences across the serological markers of HBV in order to develop a more cost-effective diagnostic algorithm for Hepatitis B management. Cross sectional study design was used with a total of 264 subjects comprising of 88 HBsAg seropositive treatment naïve subjects, 88 HBsAg seropositive subjects on antiviral therapy as case subjects and 88 age-matched apparently healthy HBsAg seronegative individuals were recruited as control subjects. Hepatitis B Virus DNA assay was performed using real time PCR technique, Hepatitis B core Antibody Immunoglobulin M and Hepatitis D Virus Immunoglobulin G assay. Immunochromatography was used for HBV Panel, Hepatitis C Virus assay and Human Immunodeficiency Virus testing. The non-treatment group has higher viral load (M=805.50 IU/ml) compared with treatment group (M = 65.50 IU/ml) (p<0.001). There was a significant difference in the HBV DNA levels of the four serological patterns observed in the study (P< 0.001). Among the four serological patterns observed, the second pattern with positive surface antibody, positive envelope antigen and negative envelope antibody showed highest viral load (M= 46850189.50 IU/ml) followed by the third pattern with negative surface antibody, negative envelope antigen, and negative envelope antibody (M=46555 IU/ml). The first pattern which has negative surface antibody, negative envelope antigen and positive envelope antibody has the lowest viral load (M=21.00 IU/ml) followed by the fourth pattern with positive surface antibody, negative envelope antigen and positive envelope antibody (M=493.00 IU/ml). This study showed that HBV serological markers can predict viral load and should be used as its alternative in resource poor settings.
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