Objective To improve the therapeutic effects and to prevent the recurrence of the blepharoptosis. Methods The frontalis muscle was cut to form the ladder shaped frontalis muscle flaps, which was than were transferred under the orbicularis to touch the tarsus with its broad lower part perfectly. The flap was sutured with the tarsus directly. Results All blepharoptosis of twenty four eyes in sixteen patients were treated with excellent results in function and cosmetic appearance. The upper eyelids could be closed effectively. There were no any recurrence and complications in this group. Conclusions The transfer of the ladder shaped frontalis muscle flaps applied in this group benefits the moving of upper eyelid because of its effectiveness in contraction and stable suture with the tarsus. It is more suitable for the treatment of severe blepharoptosis.

Objective To investigate the effects of quercetin on glial scar formation and axonal regeneration after spinal cord injury (SCI) and its association with the p38 mitogen activated protein kinase (MAPK) signal pathway.Methods 128 female Sprague-Dawley (SD) rats were randomly divided into a control group (SCI + saline),an intervention group (SCI + quercetin + anisomycin),a treatment group (SCI + quercetin) and a sham-operation group (n =32).Basso Beattie Bresnahan (BBB) assessment and footprint analysis of the hind limb were performed on days 1,3,7,14,21 and 28 postoperation in each group.The expression levels of p38MAPK,phosphorylation p38MAPK,glial fibrillary acidic protein (GFAP) and neurofilament protein-200 (NF-200) were detected by Western blot.The numbers of GFAP and NF-200 positive staining cells in the injured spinal cord in each group were detected by immunohistochemistry.Results The BBB scores in the treatment group were significantly higher than in the intervention and control groups at each time point after SCI except on day 3 postoperation (P ＜ 0.05).The expression levels of phosphorylation p38MAPK protein in each SCI group were significantly higher than in the sham-operation group on days 3 and 7 postoperation (P ＜ 0.05).The expression levels of phosphorylation p38MAPK protein in the treatment group were significantly lower than in the control and intervention groups on days 3,7 and 14 postoperation (P ＜ 0.05),but there was no significant difference on day 28 postoperation among all the groups (P ＞ 0.05).The numbers of NF-200 and GFAP positive staining cells were significantly greater than in the sham-operation group at each time point postoperation (P ＜ 0.05);the NF-200 positive staining cells in the treatment group were significantly increased in comparison with the control and intervention groups (P ＜ 0.05);the GFAP positive staining cells in the treatment group were significandy fewer than in the control and intervention groups on days 7,14 and 28 postoperation (P ＜ 0.05).Conclusions Quercetin may have protective effects against acute SCI by decreasing glial scar formation,increasing axonal regeneration and promoting recovery of locomotor and nerve function in rats.The effects may be correlated with inhibition of the p38MAPK signal pathway.

OBJECTIVETo study the role of integrin-linked kinase (ILK) on the proliferation and differentiation of human fibroblast in hypertrophic scar and its effect on the scar formation.

METHODSThe human scar fibroblasts were isolated and cultured in vitro. The cells were divided into 4 groups. (1) control group: only contains DMEM; (2) jetPRIME group: DMEM with 200 microl jetPRIME buffer and 4 microl jetPRIME; (3) ILK siRNA group: DMEM and ILK siRNA; (4) ILK cDNA group: DMEM and ILK cDNA. The cell proliferation was detected by XTT assay and the mRNA and protein expressions of ILK and alpha-SMA were detected by Real-time qPCR and Western blot.

RESULTS(1) XTT results showed that the cellular proliferation level after 48 h in four groups were 0.820 +/- 0.065, 0.873 +/- 0.041, 0.554 +/- 0.013 and 1.296 +/- 0.094, respectively. The cellular proliferation curve showed that the cellular proliferation level was very flat in ILK siRNA group while the cellular proliferation level gradually increased from 12 h. 48 h after transfection, the cellular proliferation level in ILK siRNA group was significant lower than those in other groups (P value were 0.021, 0.034, 0), while the cellular proliferation level in ILK cDNA group was the highest among all 4 groups (P value were 0.017, 0.009, 0). (2) The Real-time qPCR showed that the expressions of ILK mRNA and alpha-SMA mRNA were 0.693 +/- 0.412 and 0.422 +/- 0.037 in control group, were 0.621 +/- 0.183 and 0.388 +/- 0.005 in jetPRIME group, were 0.052 +/- 0.019 and 0.073 +/- 0.023 in ILK siRNA group, were 240.193 +/- 35.170 and 138.056 +/- 24.060 in ILK cDNA group. The expressions of ILK mRNA and alpha-SMA mRNA in ILK siRNA group were significantly lower than those in other three groups (P < 0.05). And the expressions of ILK mRNA and alpha-SMA mRNA in ILK cDNA group were significantly higher than those in other three groups (P < 0.05). (3) The Western blot also showed that the expression of ILK and alpha-SMA proteins were decreased in ILK siRNA group and increased in ILK cDNA group.

CONCLUSIONILK may promote the proliferation and differentiation of human scar fibroblast. It may play an important role in scar formation and contracture.

Actins ; metabolism ; Adolescent ; Adult ; Cell Differentiation ; drug effects ; Cell Proliferation ; drug effects ; Cells, Cultured ; Cicatrix, Hypertrophic ; metabolism ; Female ; Fibroblasts ; cytology ; drug effects ; metabolism ; Humans ; Male ; Middle Aged ; Protein-Serine-Threonine Kinases ; pharmacology ; RNA, Messenger ; genetics ; Transfection ; Young Adult