Kaliyadan Feroze, Gosai B B, Al Melhim Walid Naief, Feroze Kaberi, Qureshi Habib Ahmad, Ibrahim Sayed, Kuruvilla Joel
Department of Dermatology, King Faisal University, Al Hofuf, Saudi Arabia.
Department of Biomedical Sciences, King Faisal University, Al Hofuf, Saudi Arabia.
Int J Trichology. 2016 Apr-Jun;8(2):94-8. doi: 10.4103/0974-7753.188035.
Cosmetic procedures for hair, such as bleaching, dyeing, and straightening, are commonly used around the world. It has been suggested that excessive use of such procedures can cause damage to the hair shaft. We aimed to assess hair shaft changes using scanning electron microscopy (SEM) in female volunteers who frequently use hair treatment procedures such as bleaching, dyeing, or straightening.
A cross-sectional, controlled study in a sample of 25 female volunteers (19 study group and 6 controls) in the age group of 18-45 years. The study group was composed of volunteers who regularly used different cosmetic hair treatment procedures such as bleaching, dyeing, and straightening (any one of these or a combination). The control group had never used any specific hair treatment procedure. The hair shaft damage as seen on SEM was assessed using a standardized scoring system and compared among the two groups statistically. The hair shafts were also examined clinically and with light microscopy.
No significant differences were seen between the test and control groups with regard to normal clinical examination and light microscopy findings. A higher degree of hair shaft damage was evident under SEM in the study group as compared to the control group. This difference was statistically significant.
Regular use of procedures such as bleaching, dyeing, or straightening can lead to subtle changes in the hair shaft which can be detected early by SEM.
头发的美容程序，如漂白、染色和拉直，在世界各地普遍使用。有人认为过度使用此类程序会对毛干造成损伤。我们旨在通过扫描电子显微镜（SEM）评估经常使用头发处理程序（如漂白、染色或拉直）的女性志愿者的毛干变化。
对25名年龄在18 - 45岁的女性志愿者（19名研究组和6名对照组）进行横断面对照研究。研究组由定期使用不同头发美容处理程序（如漂白、染色和拉直，其中任何一种或组合）的志愿者组成。对照组从未使用过任何特定的头发处理程序。使用标准化评分系统评估SEM下观察到的毛干损伤，并在两组之间进行统计学比较。还对毛干进行了临床检查和光学显微镜检查。
在正常临床检查和光学显微镜检查结果方面，试验组和对照组之间未观察到显著差异。与对照组相比，研究组在SEM下毛干损伤程度更高。这种差异具有统计学意义。
定期使用漂白、染色或拉直等程序会导致毛干出现细微变化，通过SEM可早期检测到这些变化。
