This study has the purpose to evaluate the effect of an ointment made from the ethanolic extract of S. tuberosum L. var. "Tumbay yellow potato" on skin induced wounds of Mus musculus Balb/c. MATERIALS AND METHODS Biological material Mus musculus Balb/c (30-35 g) males, 12-14 weeks old, obtained from the Instituto Nacional de Salud (INS), were used for this investigation. All mice were kept in individual cages and standard photoperiod environmental conditions (12:12 dark: light cycle) ABSTRACT Background: Solanum tuberosum L. is an Andean tuber that is mainly characterized by its antioxidant properties. Objective: To evaluate the healing activity of an S. tuberosum-based ointment on wounds induced in mice. Material and methods: Ethanolic extracts of peel and pulp of tubers of S. tuberosum "Tumbay yellow potato" were prepared, which were incorporated into 1% and 2% ointment formulations. Mus musculus Balb/c with induced wound were distributed in the following working groups: Group I (Negative Control), Group II (Positive Control: Neomycin, Polymyxin B and Bacitracin Ointment) and Groups III and IV (Ointment at 1 % and 2% of S. tuberosum extract, respectively), daily administration of topical treatments were carried out for 07 days. Wound closure was determined during the experimentation time, then euthanized with sodium pentobarbital 60 mg/kg b.w. (i.p.) to obtain skin samples for histopathological analysis. Results: Groups III and IV showed that better evidence of wound closure and scarring in the histopathological analysis, the greatest effect being in Group IV. Conclusions: S. tuberosum ointments show healing activity in induced wounds in mice, the most effective treatment being the 2% ointment formulation.
This review aims to demonstrate the relevance that medicinal plants and their promising results have in prevention and treatment of pain. The neurophysiological bases of pain have been analyzed and the potential mechanisms of action have been proposed, it has also been determined that the main experimental models used for the evaluation of the analgesic potential are: acetic acid-induced writhing test, formalin test, hot-plate test, capsaicin-induced nociception, cinnamaldehyde-induced nociception, glutamate-induced nociception, tail-flick test and tail immersion test. There are countless medicinal plants with potential analgesic activity, in some of them main responsible compounds for the activity are flavonoids (vitexin, quercetin, naringenin, astragalin, eupatilin), alkaloids (scotanamine B, bullatine A, S-(+)dicentrine, stephalagine, lappaconitine), terpenoids (p-cymene, thymol, menthol, citronellol, myrcene, carvacrol, linalool) and saponins (siolmatroside I, cayaponoside D, cayaponoside B4, cayaponoside A1); however, all studies have only been carried out up to pre-clinical stages. Therefore, it is recommended to carry out kinetic studies of the most remarkable natural compounds, evaluate mixtures of active compounds for diminishing doses to avoide possible side effects, and continue with clinical studies of medicinal plants whose safety has already been reported.
Background and Aim: Momordica charantia is mainly characterized by its antimicrobial and antioxidant properties. The current study aimed to evaluate the healing activity of gel and cream formulations based on M. charantia on induced wounds in mice. Materials and Methods: Acetonic extract of M. charantia was prepared and incorporated into gel and cream formulations. Mus musculus Balb/c (n=30) with induced injury were distributed into five groups: Group I (control – day 7), Group II (control – day 14), Group III (1% gel – day 7), and Group IV (1% gel – day 14) to which 1% M. charantia gel was dermally applied daily for 7 and 14 days, respectively, Group V (1% cream – day 7) and Group VI (1% cream – day 14) to which of M. charantia 1% cream were dermally applied daily for 7 and 14 days, respectively. Time of wound closure was determined during the experimentation; rats were euthanized with sodium pentobarbital 60 mg/kg/pc v.ip. for obtaining skin samples for histopathological analysis. Results: Groups IV and VI showed a higher percentage of wound closure on day 14, and in histopathological analysis, effect was greater in Group VI with the presence of fibroblasts and abundant collagen and elastic fibers. Conclusion: M. charantia gel and cream showed wound healing activity on induced wounded mice; the most effective treatment was M. charantia 1% cream formulation.
Fluid extract of leaves of Tessaria integrifolia Ruiz & Pav. presents leishmanicidal activity on Mesocricetus auratus with experimental leishmaniasis. Fraction F8 presents leishmanicidal activity on infected macrophages at a dose of 14 μg/mL. An eudesman type sesquiterpene was identified, according to 1 H, 13C, and LC / MS NMR analysis.
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