The present study deals with an immunocytochemical localization of S-100 protein in the rat lymph nodes and spleen. The immunoreactivity for S-100 was contained in the reticular cells within the germinal center. The immunoreactive cells possessed a scanty perinuclear cytoplasm and extended slender cytoplasmic processes among lymphocytes. No cell outside the germinal center showed any immunoreac...

Sjögren’s Syndrome (SS) is an autoimmune disease characterized by chronic Band T-cell infiltration of the salivary and lachrymal glands. Clusters of Band Tcells which resemble germinal centres are seen within the glandular tissue. We have shown that clonal Bcell proliferation and affinity maturation are occurring within these clusters [1]. ScFv antibodies have been produced from one of these B-...

Polychlorinated biphenyls (PCBs) are endocrine-disrupting chemicals that mimic estrogen in fish. Among the various PCBs, 3,3’,4,4’,5-pentachlorobiphenyl (PCB126), considered an antagonist, has been reported to elicit estrogenic activity We investigated potency of PCB126 vitro oocyte maturation dusky tripletooth goby, Tridentiger obscurus . In this study, we quantified steroid metabolites follow...

A novel method for the preparation of α-zirconium phosphate (ZrP) nanoparticles as an eco-friendly and recyclable heterogeneous catalyst was studied. Polyethylene glycol (PEG) was used as the organic matrix which produced a better dispersion of ZrP nanoparticles. The catalyst was characterized by several physico-chemical techniques such as ICP-OES, XRD, TPD-NH3, pyridine-FTIR, BET, FTIR, TGA, S...

The ultrastructural aspects of the lymphoid and plasma cell infiltrate in rheumatoid synovium have received little attention. We have therefore undertaken a study of the germinal follicles in rheumatoid synovium, and here draw attention to: (a) Cytoplasmic bridging between lymphocytes, plasma cells, and phagocytes; (b) Cytoplasmic and nuclear inclusions in lymphocytes; (c) Detachment of cytopla...