After the laser irradiation, the hair root sheath cells and matrix cells were damaged, then the follicle atrophy and the hair no longer regrows. 通过损伤毛根鞘细胞及毛母质细胞,最终达到毛囊萎缩,毛发不再生长。
Results COX-2 expression in pilosebaceous unit of adult rat showed strongly positive at sebaceous gland, positive in bulge region and negative in hair matrix. 结果成年大鼠毛囊皮脂腺单位中,bulge(隆突)区弱表达,皮脂腺高表达,而毛球部未见表达。
Apparatus conditions of GFAAS for determination of Pb. Cd and Cu in eight kinds of plant hair dyes were inquired. The factors affecting the result were investigated including the drying temperature, atomization temperature, ashing temperature and matrix modifier. 系统研究了用石墨炉原子吸收光谱法测定八种植物染发剂中Pb、Cd和Cu的仪器测定条件,包括干燥温度、灰化温度、原子化温度、基体改进剂等,得到最佳仪器测定条件。
Structure of hair follicle is complex, containing at least seven types of cells including epithelial components ( hair matrix cell and outer root sheath) and mesenchymal components ( follicular papilla and connective tissue sheath). 毛囊结构复杂,含有上皮成分(毛母质和外根鞘)和真皮成分(真皮乳头和结缔组织鞘)的至少七种细胞。