Million people have infected the SARS-CoV-2 epidemic, which is currently spreading. We describe a confirmed COVID-19 patient whose oropharyngeal swab test for RNA and positive PCR results after 8 weeks proclaim negative result of SARS-COV-2. ImmunoglobulinG was not detected during initial illness. In this study, we discuss potential role low IgG in cases reinfection.

After the analysis of the relation between the serum protein and the immunoglobulin-G content of the colostrum and the milk of 141 cattle of various genotypes (pure-bred or cross-bred), 55 goats of various breeds and 171 sheep of various breeds, it was established that there exists a very close correlation between these two components in all three species. R values of 0.9869 for cattle, 0.9723 ...

We describea turbidimetric assay forquantifyingtotal immunoglobulinG (IgG) in serum with use of a singlemonoclonal antibody. The reaction,monitoredby a centrifugalanalyzer, is technicallysimple, rapid, and precise. Bufferof low ionic strengthand polyethyleneglycolare requiredfor formationof detectableantibody-antigencomplexes.We measured lgG concentrationsin 49 polyclonalsera (Group 1) and 84 s...

Most patients with ovarian cancer are diagnosed late in progression and often experience tumor recurrence and relapses due to drug resistance. Surface expression of matrix metalloprotease (MMP)-14 on ovarian cancer cells stimulates a tumor–stromal signaling pathway that promotes angiogenesis and tumor growth. In a cohort of 92 patients, we found that MMP-14 was increased in the serum of women w...

The myalogenous leukemia call line K-562 with a Ph'+ chromosome, derived from a patient with chronic myalo ganous leukemia in terminal blashic crisis, is not a bone marrow-derived lymphoblastic call line, because the cells neither produce immunoglobulins nor possess complement receptors. Since it has been suspected that blasts found in some patients with chronic myelogenous leukemia in bIas tic...

results in a grossly modified lipoprotein that rapidly accumu lates withinmacrophages(6). Oxidationof LDL can be pre vented by suitable antioxidants,which appear effective in reducing atherosclerosis progression in Watanabe heritable hyperlipidemic (WHHL) rabbits (7). Another intervention for preventingoxidative modificationof LDL is treatment with ethinylestradiol(8), which also decreases seru...

To further evaluate the clinical influencing factors of rituximab in treatment diffuse large B cell lymphoma patients with hypergammaglobulinemia by studying efficacy combined chemotherapy hypergammaglobulinemia. 89 treated our hospital from January 2011 to December 2020 were selected as subjects. After informed consent, control group divided into two groups: was conventional and on basis chemo...

In the present paper, we have studied immunglobulin (IgG) of epileptic children, migraineous and paralytic patients.  We have compared our results with normal healthy controls. We found that the bands ranges from 1151.94 to 1168.28 cm-1 due to phospholipids (P-O-C ) group appear in some of the migraineous and paralytic patients only. These bands are absent in normal and epileptic patients. The ...

Background: Helicobacter pylori (H.pylori) is a common bacterial infection, with considerably high morbidity and mortality worldwide. This bacterium represents a key factor in the etiology of various chronic infections ranging from gastritis, peptic ulcer disease to gastric cancer; but the prevalence has large variations in different communities. The aim of this study was to estimate the preval...