Optibio Co., Ltd. products

SARS-CoV-2 antigens refer to nucleoproteins that pertain specifically to the virus. SARS-CoV-2 test detects the presence of the SARS-CoV-2 virus from part of the upper respiratory tract swab specimens by identifying antigens pertaining to SARS-CoV-2. The test identifies current infection during the acute phase of COVID-19, while the virus is still present in large quantities in the respiratory tract. The SARS-CoV-2 rapid antigen test is a reliable, rapid chromatographic immunoassay for the qualitative detection of specific antigens of SARS-CoV-2 present in the human nasopharynx.

SARS-CoV-2 neutralizing antibodies (nAbs) are special antibodies that function to prevent SARS CoV-2 from binding to the ACE2 receptor of human cells. High levels of nAbs indicate immunity against COVID-19. Standard IgG/IgM antibody tests – which are universally available – do not detect for nAbs and can only provide an indirect indication for immunity. A SARS-CoV-2 nAb test can be used to monitor immunization against COVID-19, evaluate vaccine efficacy across vaccinated patients, and assess recovering patients.

Creatine Kinase-MB (CK-MB) is a form of enzyme found primarily in heart muscle cells. CK-MB is one of three forms of the enzyme creatine kinase and is released from the muscle cells and is detectable in the blood when there is muscle damage in the heart. When there is an increased presence of CK-MB in the blood, the CK-MB test can be used to determine whether it is a heart damage or not. CK-MB is thus a cardiac marker used to assist diagnoses of acute myocardial infraction, heart attack, distinguish between skeletal muscle and heart muscle damage, and monitor additional heart damage.

Glycated hemoglobin A1c (HbA1c) is a form of hemoglobin that is chemically linked to a sugar. The glycated hemoglobin test measures the concentration of glycated A1c hemoglobin by evaluating the average level of glucose in the blood over the past 2 to 3 months. Hemoglobin is an oxygen-carrying protein found inside red blood cells. Although several normal and variant hemoglobin are known, the most common form, accounting for 95~98%, is hemoglobin A.

Human chorionic gonadotropin (hCG) is a glycoprotein hormone for the maternal recognition of pregnancy produced by trophoblast cells that are surrounding a growing embryo, which eventually, forms the placenta after implantation. hCG can be detected in the urine and serum of pregnant women as early as 6 to 15 days after conception. The concentration of hCG increases to 50 mIU/ml one week post implantation and reaches to about 100 mIU/ml at the time of the first missed menstrual period and peaks at 100,000-200,000 mIU/ml at the first trimester. Beta-hcG tests helps in confirming a pregnancy, identifying an ectopic pregnancy, and monitoring a pregnancy that may be at risk of failing.