深圳市2005年居民死因分析

[目的]了解深圳居民死亡原因,为预防和治疗疾病提供依据. [方法]分析深圳市2005年居民的死因资料. [结果]2005年深圳市常住居民年死亡率为74.60/10万.前10位死因顺位是:损伤与中毒、恶性肿瘤、心脏病、脑血管疾病、呼吸系疾病、消化系疾病、内分泌及营养代谢和免疫疾病、新生儿疚病、泌尿及生殖系疾病、传染病和寄生虫病. [结论]居民病伤死因顺位及构成已发生了明显改变,由损伤与中毒取代传染病成为第1位死因,除继续加强对传染病的防控外,应加强对慢性非传染性疾病防治工作的力度;另外,面对意外伤害的减寿率居高不下的现实,应引起有关部门的高度重视.     

崴脚的急救与防治

<正>踝关节扭伤在军事训练、体育锻炼及日常生活中十分常见,每天1万人中就有1人发生急性踝关节扭伤(acute ankle sprain, AAS),一个人一生中至少会出现10～100次踝关节扭伤^[1]。踝关节扭伤是骨科发病率较高的损伤,占运动损伤的30%,好发人群是<35岁的运动员,通常为15～19岁人群^[2]。急性崴脚后,如果处理不得当或未经过系统康复训练就过早进行剧烈运动,很可能留下脚踝反复崴伤和慢性疼痛等后遗症^[3]。     

不同功率密度氦氖激光照射对培养瘢痕成纤维细胞生长的影响

Objective To explore the relationship between power density of He－Ne laser with the growth of fibroblasts in hypertrophic scar(HS).Methods The cultured fibroblasts in HS were irradiated with He－Ne laser(Wavelenth 632.8 nm),various power densities such as 50mW/cm2,100mW/cm2 and 150mW/cm2 were respectively adopted once a day for 10 minutes.After 1,3 and 5 times of He－Ne laser for dose rate irradiation separatedly,the cell count and cell circle analysis were counted and examined by trypan blue staining and flow cytometry .Results The amount of cell after 1 times of 50mW/cm2 laser irradiation was markedly more than the control(P<0.01).The amount of cells after 5 times of 100mW/cm2,3 and 5 times of 150 mW/cm2 laser irradiation was less than the controls(P< 0.05).The result of cell circle analysis was corresponded with that of the cell count.Conclusion Both stimualtion and inhibition of He－Ne laser on the growth of scar fibroblasts can be obtained with various power densities.Power density of He－Ne laser associates with the effects on the growth of scar fibroblasts.     

Effects of the He-Ne laser with vario us power densities on the growth of cultured f ibroblasts in hypertrophic scar

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