Skin tissue regeneration by Acanthus dioscoridis L. leaf extracts in vivo: Relevance to transforming growth factor β 1, antioxidants, and inflammatory factors
Khaled Abdul-Aziz Ahmed , Khalid M. Alqaisi , Noralhuda Ayad Ibrahim , Ahmed A.J. Jabbar , Hanan Ibrahim Althagbi , Rawaz Rizgar Hassan , Goran Noori Saleh , Ahmed Hameed Al-Dabhawi , Muneera S.M. Al-Saleem , Fuad Othman Abdullah , Jehan Y. Al-Humaidi , Mohammed Muzibur Rahman
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引用次数: 0
Abstract
Wound healing is an intricate process that requires special care and therapeutics to enhance skin regeneration. Considering natural products as a safer choice, the present investigation elucidated the phytochemical, acute toxicity, and wound-healing effects of Acanthus dioscoridis L. (LEAD) leaf extracts on excisional neck injury in rats. A uniform dorsal neck cut was formed in twenty-four albino rats, which were arbitrarily divided into 4 groups and treated daily (0.2 ml) with either normal saline (group A); intrasite gel (group B); LEAD 250 and 500 mg/kg of LEAD (groups C and E, respectively).
Phytochemical profiling of LEAD showed elevated total phenolic (111.4 and 105.4 mg/g GAE) and flavonoid (78.6 and 63.5 mg/g rutin) contents in ethyl acetate and methanolic extracts, respectively.
LEAD treatment did not cause toxic incidence in rats administered with up to 5 g/kg. The results of the wound trial unveiled increased therapeutic efficacy of LEAD, denoted by accelerated skin tissue regeneration and higher closure proportion compared to vehicle rats. Microscopical screening showed increased tissue hydroxyproline/collagen formation, fibroblast deposition, and reduced inflammatory cell infiltration.
Topical application of LEAD caused positive modulation of transforming growth factor β 1 (angiogenesis) in recovered skin, maintained skin homeostasis, and up-regulated tissue granulation/re-epithelialization. Moreover, LEAD treatment caused a significant down-regulation of ROS formation/oxidative stress in skin tissues (increased endogenous SOD, CAT), as well as lowered lipid peroxidation (MDA) generation. Serum inflammatory chemicals (TNF-α, IL-6, and IL-10) were significantly modulated following LEAD application. This study confirmed the wound healing potential of LEAD, which was mainly linked with its phenolics and flavonoids contents.
期刊介绍:
Burns aims to foster the exchange of information among all engaged in preventing and treating the effects of burns. The journal focuses on clinical, scientific and social aspects of these injuries and covers the prevention of the injury, the epidemiology of such injuries and all aspects of treatment including development of new techniques and technologies and verification of existing ones. Regular features include clinical and scientific papers, state of the art reviews and descriptions of burn-care in practice.
Topics covered by Burns include: the effects of smoke on man and animals, their tissues and cells; the responses to and treatment of patients and animals with chemical injuries to the skin; the biological and clinical effects of cold injuries; surgical techniques which are, or may be relevant to the treatment of burned patients during the acute or reconstructive phase following injury; well controlled laboratory studies of the effectiveness of anti-microbial agents on infection and new materials on scarring and healing; inflammatory responses to injury, effectiveness of related agents and other compounds used to modify the physiological and cellular responses to the injury; experimental studies of burns and the outcome of burn wound healing; regenerative medicine concerning the skin.