Wound-healing effect of topical nanoemulsion-loaded cream and gel formulations of Hippophae rhamnoides L. (sea buckthorn) fruit oil and their acute dermal toxicity study on female SD rats.

OBJECTIVE: The objective of this study was to evaluate the efficacy and safety of topical nanoemulsion (NE)-loaded cream and gel formulations of Hippophae rhamnoides L. (sea buckthorn [SBT]) fruit oil for wound healing. MATERIALS AND METHODS: The NE-loaded cream and gel formulations of H. rhamnoides L. (SBT) fruit oil (IPHRFH) were prepared and evaluated for their wound-healing activity on female Sprague-Dawley (SD) rats. They were further divided into groups (seven) and the wound-healing activity was determined by measuring the area of the wound on the wounding day and on the 0th, 4th, 8th, and 10th days. The acute dermal toxicity of the formulations was assessed by observing the erythema, edema, and body weight (BW) of the rats. RESULTS: The topical NE cream and gel formulations of H. rhamnoides L. (SBT) fruit oil showed significant wound-healing activity in female SD rats. The cream formulation of IPHRFH showed 78.96%, the gel showed 72.59% wound contraction on the 8th day, whereas the positive control soframycin (1% w/w framycetin) had 62.29% wound contraction on the 8th day. The formulations also showed a good acute dermal toxicity profile with no changes significantly affecting BW and dermal alterations. CONCLUSIONS: The results of this study indicate that topical NE-loaded cream and gel formulation of H. rhamnoides L. (SBT) fruit oil are safe and effective for wound healing. The formulations showed no signs of acute dermal toxicity in female SD rats.

Therapeutic potential of seabuckthorn: a patent review (2000-2018).

Introduction: Seabuckthorn (SBT) has received worldwide attention for therapeutic, nutraceutical and cosmetic purposes. It is used for the treatment of a number of diseases. Hundreds of commercial products containing SBT are available in the market. Areas covered: This review article covers patents on the therapeutic potential of SBT and its chemical constituents. The therapeutic areas covered in this review include cancer, cardiovascular, diabetes, inflammation, anti-oxidant, and anti-microbial. The patents were searched through Sci-finder, Espacenet, Google Patent, and US Patent. Expert opinion: Plant-based drugs have played an important role in the modern drug industry. Since ancient times, SBT has been used to cure several ailments. SBT has emerged as an important plant, which has been investigated for numerous pharmacological properties and shown to be beneficial in a number of therapeutic areas. Several clinical trials have demonstrated the therapeutic potential of SBT for the treatment of many diseases including cardiovascular, inflammation, diabetes, platelet inhibition, etc. There is huge potential for developing standardized herbal products from different parts of SBT.