ABSTRACT
<p><b>OBJECTIVE</b>To explore the effect and action mechanism of moxibustion on healing of cutaneous wound in rats.</p><p><b>METHODS</b>Twenty-four SD rats were selected and made into linear full-thickness skin injury model. With randomized digital table, rats were randomly divided into a treatment group and a model group, 12 cases in each one. Then according to treatment time, each group was again divided into a 1d group, a 3d group and a 7d group, 4 cases in each one. The moxibustion at injured skin was applied in the treatment group, 30 min per time, once a day. Hematoxylineosin (HE) staining method was adapted to measure growth status of capillary and number of vascular endothelial cell; immunohistochemical method was used to measure the expression of vascular endothelial growth factor (VEGF).</p><p><b>RESULTS</b>The wound healing indices in the treatment 7d group were higher than those in the model 7d group on both the 4th day and 8th day after treatment (both P < 0.05). The number of capillary in the treatment 1d group and 3d group was higher than that in the model 1 d and 3 d groups (both 1 < 0.05). The number of capillary in the treatment 7d group was lower than that in the model 7d group (P < 0.05). The number of vascular endothelial cell in the treatment 3d group was higher than that in the model 3d group (P < 0.05). The number of vascular endothelial cell in the treatment 7d group was lower than that in the model 7d group (P < 0.05). The difference of number of vascular endothelial cell between the treatment 1d group and model 1d group was not significant (P > 0.05). Positive cells accumulated score of V EGF expression in the treatment 3d group was higher than that in the model 3d group (P < 0.05). Positive cells accumulated score of VEGF expression in the treatment 7d group was lower than that in the model 7d group (P < 0.05). The difference of positive cells accumulated score of VEGF expression between the treatment 1d group and model 1d group was not significant (P > 0.05).</p><p><b>CONCLUSION</b>Moxibustion could improve the healing of skin wound in rats, which could be related with regulating vascular endothelial cell and VEGF in wound tissue at different time.</p>
Subject(s)
Animals , Female , Humans , Male , Rats , Endothelial Cells , Metabolism , Moxibustion , Rats, Sprague-Dawley , Skin , Wounds and Injuries , Metabolism , Vascular Endothelial Growth Factor A , Genetics , Metabolism , Wounds and Injuries , Genetics , Metabolism , TherapeuticsABSTRACT
To evaluate the value of silicone intubation and ring-fixed method in canalicular laceration. ●METHODS: A retrospective study of 36 cases with laceration of lacrimal canaliculus. For all the patients, microscope was used to find the broken ends of the lacrimal canaliculus, and then straight insertion was performed to the distant and near broken ends through the upper and lower lacrimal points, then passed the dacryocyst to insert nasolacrimal canal and ended up in inferior nasal meatus. Thus, clinical data about forming annular support to treat laceration of lacrimal canaliculus was presented here. ● RESULTS: All 36 patients with traumatic canalicular laceration were anastomosed successfully and all patients healed without infection. The surgery went well, intubation was smoothly, all patients were followed - up for another 6mo after the stent was removed. The accidental fall off of the stent was not observed during the follow - up. During the follow - up 10 - 18mo after extubation, when the stent was removed, 32 cases (88. 9%) recovered to normal lacrimal drainage function;4 cases ( 11. 1%) remained epiphora with obstructed lacrimal passage. All cases were no lower eyelid ectropion. ●CONCLUSlON: For the patients with inferior canalicular laceration, the silicone intubation and ring-fixed method is effective, low irritation and less complication.
ABSTRACT
Background and purpose:Studies have shown that ribosomal protein L8 (RPL8) is shared by melanomas, gliomas and ovarian carcinomas. A peptide of RPL8 signiifcantly stimulated proliferation and cytokine expression of the hepler T cell clone and lymphocytes in melanoma patients. RPL8 may stimulate anti-tumor immunity, making RPL8 an attractive candidate for therapeutic intervention. In this study, we prepared DC pulsed by RPL8 (RPL8-DC) and investigate the anti-tumor effect of RPL8-DC on melanoma in mice.Methods: The recombinant protein was achieved through IPTG induction in E. coli and identiifed with Western blot. Bone marrow-derived DC was loaded with RPL8 protein. RPL8 and CD11c, CD80, MHC-Ⅰ, MHC-Ⅱmolecules on dentritic cells were monitored by lfuorescence microscope and FACS analysis, respectively. The anti-tumor effect of T cells in vitro was detected by MTT assay. Subcutaneous tumors were induced in C57BL/6 mice using B16 cells. The tumor volumes were measured after injection with RPL8-DC. Results:The puriifed protein was combined with speciifc antibodies. DCs pulsed by RPL8 were visualized under lfuorescent microscopy. CD11c, CD80, MHC-Ⅰ, MHC-Ⅱmolecules on DCs were up-regulated after stimulation with RPL8 and LPS. B16 cells were inhibited by T cells stimulated with RPL8-DC. The inhibition rate of tumor cells was 70%in RPL8-DC group when effector-to-target ratio was 30∶1, which was higher than PBS and DC groups. Inhibition of growth could be observed more signiifcantly in mice after the treatment with RPL8-DC. The mice receiving the therapy of RPL8-DC were able to survive much longer than the mice receiving control therapy. Conclusion:The DC pulsed by RPL8 protein can inhibit the growth of melanoma.