Abirami Sasi, Edwin Raj B, Soundarya T, Kannan Marikani, Sugapriya Dhanasekaran, Al-Dayan Noura, Ahmed Mohammed Arif
Department of Microbiology, Kamaraj College, Thoothukudi, TN, India.
Department of Zoology, Kamaraj College, Thoothukudi, TN, India.
Saudi J Biol Sci. 2021 Apr;28(4):2180-2187. doi: 10.1016/j.sjbs.2021.01.046. Epub 2021 Feb 2.
A broad spectrum of medicinal plants was used as traditional remedies for various infectious diseases. Fungal infectious diseases have a significant impact on public health. Fungi cause more prevalent infections in immunocompromised individuals mainly patients undergoing transplantation related therapies, and malignant cancer treatments. The present study aimed to investigate the antifungal effects of the traditional medicinal plants used in India against the fungal pathogens associated with dermal infections. Indian medicinal plants (Acalypha indica, Lawsonia inermis Allium sativum and Citrus limon) extract (acetone/crude) were tested for their antifungal effects against five fungal species isolated from skin scrapings of fungal infected patients were identified as including Alternaria spp., Curvularia spp., Fusarium spp., Trichophyton spp. and Geotrichum spp. using well diffusion test and the broth micro dilution method. All plant extracts have shown to have antifungal efficacy against dermal pathogens. Particularly, sativum extract revealed a strong antifungal effect against all fungal isolates with the minimum fungicidal concentration (MFC) of 50-100 μg/mL. Strong antifungal activity against Curvularia spp. spp. and Geotrichum spp. was also observed for the extracts of Acalypha indica, and Lawsonia inermis with MFCs of 50-800 μg/mL respectively. The extracts of Citrus limon showed an effective antifungal activity against most of the fungal strains tested with the MFCs of 50-800 μg/mL. Our research demonstrated the strong evidence of conventional plants extracts against clinical fungal pathogens with the most promising option of employing natural-drugs for the treatment of skin infections. Furthermore, in-depth analysis of identifying the compounds responsible for the antifungal activity that could offer alternatives way to develop new natural antifungal therapeutics for combating resistant recurrent infections.
多种药用植物被用作治疗各种传染病的传统药物。真菌性传染病对公众健康有重大影响。真菌在免疫功能低下的个体中引起更普遍的感染,主要是接受移植相关治疗和恶性肿瘤治疗的患者。本研究旨在调查印度使用的传统药用植物对与皮肤感染相关的真菌病原体的抗真菌作用。使用打孔扩散法和肉汤微量稀释法,测试了印度药用植物(蓖麻、指甲花、大蒜和柠檬)提取物(丙酮/粗提物)对从真菌感染患者皮肤刮屑中分离出的五种真菌的抗真菌作用,这些真菌被鉴定为链格孢属、弯孢属、镰刀菌属、毛癣菌属和地霉属。所有植物提取物均显示出对皮肤病原体的抗真菌功效。特别是,大蒜提取物对所有真菌分离株均显示出强大的抗真菌作用,最低杀菌浓度(MFC)为50 - 100μg/mL。蓖麻和指甲花提取物对弯孢属和地霉属也表现出较强的抗真菌活性,MFC分别为50 - 800μg/mL。柠檬提取物对大多数测试真菌菌株显示出有效的抗真菌活性,MFC为50 - 800μg/mL。我们的研究证明了传统植物提取物对临床真菌病原体有强有力的证据,使用天然药物治疗皮肤感染是最有前景的选择。此外,深入分析鉴定负责抗真菌活性的化合物,可以为开发对抗耐药性复发性感染的新型天然抗真菌疗法提供替代方法。