Hair follicle cycle

Growth and viability of Liaoning Cashmere goat hair follicles during the annual hair follicle cycle

Q. L. Zhang, Li, J. P., Chen, Y., Chang, Q., Li, Y. M., Yao, J. Y., Jiang, H. Z., Zhao, Z. H., and Guo, D., Growth and viability of Liaoning Cashmere goat hair follicles during the annual hair follicle cycle, vol. 13, pp. 4433-4443, 2014.

Here, we studied hair follicle development of Liaoning Cashmere goats. Every month for 1 year, skin samples were collected from five 1.5-year-old female goats, and made into paraffin sections. A number of parameters were measured of primary and secondary hair follicles via microscopic observation including follicle depth, hair bulb width, dermis and epidermis thickness, changes in follicle activity, and histology. The results showed the presence of three phases in the annual hair cycle: anagen, catagen, and telogen.

Expression and localization of the vascular endothelial growth factor and changes of microvessel density during hair follicle development of Liaoning cashmere goats

Q. L. Zhang, Li, J. P., Li, Y. M., Chang, Q., Chen, Y., Jiang, H. Z., Zhao, Z. H., and Guo, D., Expression and localization of the vascular endothelial growth factor and changes of microvessel density during hair follicle development of Liaoning cashmere goats, vol. 12, pp. 6424-6432, 2013.

Vascular endothelial growth factors (VEGFs) play important roles in neovascularization, tissue development, and angiogenesis. In this study, changes in VEGF expression patterns and microvessel density (MVD), and their correlations, were investigated during hair follicle development in epidermal appendages of Liaoning cashmere goats. Polyclonal antibodies to VEGF and microvessels were used for monthly immunohistochemical examinations of normal skin specimens from adult female goats for one year.

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