RESUMO
Wound healing is a complex and sequential biological process involving various cells and factors under body′s regulation. Appropriate interventions play positive roles in promoting effective wound healing and improving healing quality. In the clinical practice, there are many new instruments, dressings, and drugs developed for wound care, including antibacterial dressings, wet dressings, precise debridement, negative pressure wound therapy, cytokines/growth factors, and dermal substitutes, which provide revolutionary means for wound treatment. This article summarizes the effective or mature methods in wound care, providing theoretical and practical basis for choosing appropriate treatment methods in different stages of wound.
RESUMO
<p><b>OBJECTIVE</b>To obtain transgenic Pinellia ternata plants resistant to fungus by transfer Chitinase and beta-1,3-Glucanase gene from Trichoderma harzianum.</p><p><b>METHOD</b>Using hygromycin phosphotransferase as the selection marker, the Chitinase gene (ech42), beta-1,3-Glucanase gene (gluc78) and both gene pCAMBIA(ech42 + gluc78) driven by CaMV35S promoter were transferred into P. ternata callus via Agrobacterium-mediated transformation.</p><p><b>RESULT</b>PCR results confirmed that the regenerants were identified to be transgenic lines and the RT-PCR results confirmed that foreign genes construction were transfer to mRNA. Two foreign genes were inherited stably to T5 generation according to PCR results of the lines.</p><p><b>CONCLUSION</b>The results showed that chitinase gene ech42 and beta-1, 3-glucanase gene gluc78 respectively or together introducing and co-integrating into P. ternata</p>