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Address: Building G62, Phase 4 Plant, China Medical City, Taizhou City, Jiangsu Province
Contact name:Liu
Taizhou Zecen Biotech Co.,Ltd. |
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Infectious disease diagnostic kit for closed chemiluminescent immunoassay analyzer Hepatitis B e antibody (HBeAb)
HBeAg and Antibodies
Hepatitis B e antibody is a soluble viral protein. It is found early in the course of acute hepatitis B and disappears soon after ALT peaks. Persistence of HBeAg beyond 3 months after the onset of illness is unusual and may suggest progression to chronic infection.
In patients with chronic hepatitis B, the presence of positive HBeAg usually indicates a high level of viral replication and thus infectivity. HBeAg is positive in the immune tolerant phase and in the early immune clearance phase. HBeAg seroconversion is the disappearance of HBeAg and appearance of hepatitis B e antibody (anti-HBe). Most patients enter the inactive HBsAg carrier state after HBeAg seroconversion (Fig. 30-4). This state is associated with low HBV DNA, normal ALT, and little hepatic necroinflammation. However, some patients continue to have active liver disease and detectable serum HBV DNA. This can be due to either a wild-type virus or the presence of precore stop codon mutation and/or basal core promoter mutations that impair HBeAg secretion.9
HBe-AbAg: when present, especially without HBeAb, suggests increased patient infectivity.
HBeAb-total: when present, suggests less patient infectivity.
HBSAg positive, HBCAb negative*
About 5% (range 0%-17%) of patients with early-stage HBV acute infection (HBCAb rises later)
HBSAg positive, HBCAb positive, HBSAb negative
Most of the clinical symptom stage
Chronic HBV carriers without evidence of liver disease (“asymptomatic carriers”)
Chronic HBV hepatitis (chronic persistent type or chronic active type)
HBSAg negative, HBCAb positive,* HBSAb negative
Late clinical symptom stage or early convalescence stage (core window)
Chronic HBV infection with HBSAg below detection levels with current tests
Old previous HBV infection
HBSAg negative, HBCAb positive, HBSAb positive
Late convalescence to complete recovery
Old infection
Clinical significance
(1) Chronic hepatitis B HBeAb positive accounted for 48.3%, liver
cirrhosis was 68.3%, and liver cancer was 80%.
(2) The positive rate of HBeAb increased, indicating that most
patients were infected with hepatitis B virus for up to 7-27 years.
(3) HBeAb positive will still be infectious to a certain extent.
20% of babies born to HBeAb-positive pregnant women are infected
with hepatitis B virus.
| Test Item | HBeAb |
| Luminescent Principle | Enzymatic chemiluminescence |
| Luminescent Markers | AP(alkaline phosphatase) |
| Specification | 100/50 Tests/Kit |
| / | |
| Principle | Sandwich method |
| Component | Magnetic Beads |
| Calibrator Low | |
| Calibrator High | |
| Anti-A/Anti-B | |
| Control 1 | |
| Control 2 | |
| Accessories Required But Not Provided | Substrate |
| Washing solution | |
| Sample material | Serum |
| Storage | 2-8℃ |
