ABSTRACT
Pdx-1, an important transcription factor highlighting in the early pancreatic development, islet functions and pancreatic disorders, needs to be more investigated in zebrafish, and siRNA is still seldom applied in zebrafish embryo-related research. Our aim was to explore the role of pdx-1 in pancreatic development of zebrafish embryos by using siRNA approach. Microinjection, reverse transcriptase-PCR (RT-PCR), in situ hybridization and immunofluorescent staining were used in this research, and the morphology of the islet in normal zebrafish embryos, and in those treated with the siRNA specific to pdx-1 (siPDX-1) or siGFP was observed and compared. The expression of pdx-1 was detected in the stages of 1-cell, 2-cell, 4-cell, 8-cell, 16-cell, 16-hour by RT-PCT. The in situ hybridization and immunofluorescent staining results showed that siPDX-1 disturbed the formation of the islet in zebrafish embryos. Pdx-1 played multiple roles in maintaining the phenotype of the islet during embryogenesis in zebrafish.
Subject(s)
Embryo, Nonmammalian , Homeodomain Proteins/genetics , Homeodomain Proteins/metabolism , Islets of Langerhans/cytology , Islets of Langerhans/embryology , Islets of Langerhans/metabolism , RNA Interference , RNA, Small Interfering/genetics , Trans-Activators/genetics , Trans-Activators/metabolism , ZebrafishABSTRACT
AIM: To study the anti-inflammatory effect of the Antivirus Oral Liquid(AOL) in experimental rabbit conjunctivitis model. METHODS: Rabbit's staphococcus aureus conjunctivitis models and cantharides tincture conjunctivitis models were made to observe different groups of animals' symptom of eye stimulation,negative rate of bacteria and conjunctiva histopathology.And then AOL compared with the effect of amphemycin gutta or Shumu(gutta.) RESULTS: It showed that AOL possessed significant anti-inflammatory effect on bacterial conjunctivitis.The negative rate of bacteria was more than 90% after being given AOL for 4 days successively.Compared with the models group,the hyperemia and edemda were markedly relieved.The result showed that AOL possessed significant anti-inflammatory effect on irritable conjunctivitis.The hyperemia and edema were markedly relieved at the second day after being given AOL,and the inflammatory symptoms had almost disappeared after being given AOL for 4 days successively. CONCLUSION: AOL has a good effect on the therapy of staphylococcus aureus conjunctivitis and cantharides tincture.