Verma Neeraj, Kumari Usha, Mittal Swati, Mittal Ajay Kumar
Skin Physiology Laboratory, Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi - 221 005, India.
Skin Physiology Laboratory, Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi - 221 005, India.
Tissue Cell. 2017 Dec;49(6):734-745. doi: 10.1016/j.tice.2017.10.005. Epub 2017 Oct 24.
In the present study effect of asiaticoside, on healing of skin wounds in Cirrhinus mrigala is reported. Skin wound, approx. 2mm in diameter was excised using sterile disposable biopsy punch. Immediately after infliction of the wound, epidermis from wound edge starts migrating as thin sheet toward wound gap. Fronts of migrating epidermis gradually advance, and results in complete epithelialization of wound. Experiments were conducted for 30days and fishes were divided into control, sham, vehicle control and asiaticoside treated groups. Immunohistochemical localization of proliferating cell nuclear antigen positive cells indicating cellular proliferation and caspase 3 positive cells reflecting apoptosis was carried out and their density at different post wound intervals in each fish group was analyzed. Significant increase in cellular proliferation as well as decrease in apoptosis in both epidermis and dermis in fish treated with asiaticoside compared to sham and vehicle control fish is observed at different intervals of wound repair. This suggests that in treated group healing of skin wounds in fish is enhanced than in sham and vehicle control groups. Asiaticoside treatment in healing of skin wounds would greatly be beneficial to fish farmers as it could protect fish from invasion of pathogens and check fish mortality.
本研究报道了积雪草苷对印度鲮皮肤伤口愈合的影响。使用无菌一次性活检打孔器切除直径约2mm的皮肤伤口。伤口造成后,伤口边缘的表皮立即开始以薄片形式向伤口间隙迁移。迁移表皮的前沿逐渐推进,导致伤口完全上皮化。实验进行了30天,鱼被分为对照组、假手术组、赋形剂对照组和积雪草苷处理组。对增殖细胞核抗原阳性细胞进行免疫组织化学定位以指示细胞增殖,对反映细胞凋亡的半胱天冬酶3阳性细胞进行免疫组织化学定位,并分析每组鱼在不同伤口后间隔的细胞密度。与假手术组和赋形剂对照组鱼相比,在伤口修复的不同间隔观察到,用积雪草苷处理的鱼的表皮和真皮中的细胞增殖显著增加,细胞凋亡减少。这表明,与假手术组和赋形剂对照组相比,处理组鱼的皮肤伤口愈合得到增强。积雪草苷处理对皮肤伤口愈合将对养鱼户非常有益,因为它可以保护鱼免受病原体侵袭并控制鱼的死亡率。