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An evaluation study of enzyme-linked immunosorbent assay (ELISA) using recombinant GRA1 protein for detection of igg antibodies againts Toxoplasma gondii infections Nina Difla Muflikhah; Wayan Tunas Artama
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 51, No 2 (2019)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.489 KB) | DOI: 10.19106/JMedSci005102201904

Abstract

Reliable laboratory testing is important to detect Toxoplasma gondii infection and focuses on improving the low cost and easy to use the diagnostic instrument. Enzyme-linked immunosorbent assay (ELISA) method can be used to determine a large number of samples within a short period of time which based on antibody or antigen detection. We tested the sensitivity and specificity of GRA1 protein of as antigen using the ELISA method to toxoplasmosis diagnosis and compared it with commercial ELISA kit. Seventy sera samples were collected and tested using indirect ELISA, commercial ELISA kit and GRA1 protein-coated as antigen. The results showed 48 and 51 samples had positive IgG antibody using ELISA-GRA1 and commercial ELISA kit, respectively. The GRA1 sensitivity and specificity on ELISA were 100% and 86.36%, respectively. Whereas positive predictive value (PPV) was 94.11%. This result indicated that the recombinant GRA1 protein is a highly immunogenic protein in human toxoplasmosis and marker for toxoplasmosis screening.
AN EVALUATION STUDY OF ENZYME-LINKED IMMUNOSORBENT ASSAY (ELISA) USING RECOMBINANT PROTEIN GRA1 FOR DETECTION OF IgG ANTIBODIES AGAINTS TOXOPLASMA GONDII INFECTIONS Nina Difla Muflikhah; Wayan Tunas Artama
Indonesian Journal of Tropical and Infectious Disease Vol. 6 No. 5 (2017)
Publisher : Institute of Topical Disease Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (161.966 KB) | DOI: 10.20473/ijtid.v6i5.5903

Abstract

Toxoplasmosis is an infectious disease caused by Toxoplasma gondii, an intracellular protozoan parasite that live inside the cells of the reticulo endothelial and parenchymal cells of human and animals (mammals and birds). Some cases of toxoplasmosis usually have no symptoms, but in any cases caused severe symptoms, such as hydrocephalus, microcephalus, intracranial calcification, retinal damage, brain abscess, mental retardation, lymphadenopathy, and others. Its severe symptoms usually showed a long time after first exposure, except symptoms showed by congenital transmission caused by infected mother. Early diagnosis is important to prevent the illness but methods for toxoplasmosis screening are still too expensive for developing country. Enzyme-linked immunosorbent assay (ELISA) allow the testing of a large number samples within short time frame and based on antibody or antigen detection. This study aimed to know the sensitivity and specificity of recombinat protein GRA1 as antigen using ELISA methods. We tested the sensitivity and spesificity of GRA1 protein as antigen in ELISA methods to diagnose toxoplasmosis and compared with ELISA Kit Commercial. Reliable laboratory testing is important to detect Toxoplasma gondii infection, and focused to improving the low cost and easy-to-use diagnostic instrument. Seventy sera collected and tested using both indirect ELISA, commercial ELISA kit and GRA1 protein coated as antigen. Fourty eight and fifty one samples showed positive IgG antibody result of ELISA-GRA1 and ELISA kit. Negative sample tested by ELISA-GRA1 was 22 samples and 19 sample tested by ELISA Kit. The sensitivity and specificity of GRA1-based on ELISA were 100% and 86.36%, positive prediction value (ppv) was 94.11%. These data indicate that the recombinant protein GRA1 is a highly immunogenic protein in human toxoplasmosis and become a promising marker for the screening of toxoplasmosis.
PEMERIKSAAN GOLONGAN DARAH SISTEM ABO RHESUS PADA MAHASISWA STIKES RAJEKWESI BOJONEGORO Fatia Rizki Nuraini; Nina Difla Muflikhah; Siti Nurkasanah
Jurnal Abdi Insani Vol 9 No 2 (2022): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v9i2.566

Abstract

Blood Type is an important thing to every person to understand and can identify using a specific methods, blood typing. Blood typing refers to a specific pattern of reaction to testing antisera within a given system. Blood typing have several methods, the common method that usually used is Direct Slide Test. Over a period of time, our understanding on blood groups has evolved to encompass not only transfusion-related problems but also specific disease association with RBC surface antigens. This community service activity aimed to provide blood typing examination for students who unknown their blood type and strenghten the understanding about the important of Blood Type. This activity was held on December 20, 2021 in Stikes Rajekwesi Bojonegoro. This Community service applied an examination test to several students who still unknown their blood type. Examination of blood group used the A-B-O system and rhesus with the slide test method. The results of the blood group examination of 16 students showed that the highest results were blood group B as many as 6 people (37.5%) and the least blood group being O and AB with 3 people each (18.75). Rhesus examination showed that all students were rhesus positive (100%). Students who examinated during the programmes doesn’t have undestanding of the important of knowing their blood type. Students of Stikes Rajekwesi Bojonegoro get sufficient understanding about the important of knowing their blood type and the blood typing showed 37,5% of student are B type, 18,75% are O and AB type each, while 100% rhesus positive.