Analgesic effect of Sansevieria longiflora (S. longiflora) on surgically created wound was studied. Phytochemical screening of the crude water extracts was carried out following standard procedures. Sansevieria longiflora leaves was heated and the sap was squeezed into a sample bottle to be used as it was traditional believed. Its water extract was also prepared following standard procedure. Four (4) albino rats consisting of 2 males and 2 females were used for the study. One centimeter full thickness skin incision was created on 4 different locations at the dorsal region of each rat under anaesthesia. Each of the 4 wounds created was topically treated once daily with S. longiflora sap (E), S. longiflora water extract (F), Physiological saline solution (C) and xylocaine cream (G). The treatment regimen was rotated in a clockwise direction on each rat. Pain perception was evaluated with an algometer at 6:00 GMT (morning) and 18:00 GMT (evening) from day 1 post surgery for 5 days. The phytochemical studies revealed that S. longiflora contains carbohydrates, glycoside, saponins, steroids, triterpenes, flavonoids, alkaloids and tannins. Day1 after the surgery, the mean morning value of force (N) required to elicit pain in xylocaine treated wounds (5.2 ± 0.79) were significantly higher (p<0.001) than that of physiological saline solution (2.8 ± 0.29) whereas, not different from that of S. longiflora sap (4.48 ± 0.57) and water extract (4.2 ± 0.6). Similarly, on the day 5 after the surgery, the mean morning value of force (N) required to elicit pain in xylocaine treated wounds were significantly higher (p<0.0001) than that of physiological saline solution (PSS) treated wounds and not different from that of S. longiflora sap and water extract. This showed that S. longiflora sap and water extract possess analgesic effect on incisional wounds. This study serves as a preliminary study on this plant towards searching for potent analgesics that could be used for procedural pain management. Bangladesh J. Sci. Ind. Res.55(2), 99-106, 2020
Phytochemical constituents of Croton lobatus L. (C. lobatus) water extracts and quantitative analysis were carried out following standard procedures. The antibacterial activity against Staphylococcus aureus (ATCC 33591); Streptococcus Spp; Pseudomonas aeruginosa (ATCC 9028); Proteus vulgaris; Escherichia coli (ATCC 43895); and Salmonella Spp (ATCC 4932) was carried out at the concentration of 0.5g/mL, 0.05 g/mL and 0.00 5g/mL of water. In vivo antimicrobial assay was carried out by creating four wounds of 0.5 by 0.5 cm on dorsal surface of a male albino rat under anesthesia. The wounds were left for 48 hrs, after which they were accessed and samples were collected for culture, identification and colony forming unit counts (CFU). Respective treatment using dried C. lobatus, C. lobatus (water extract), Physiological saline solution and Cicatrin powder was carried out and samples were collected at day one, three, five and seven after initiation of treatments for CFU counts on nutrient and MacConkey agar. The phytochemical studies revealed that C. lobatus contains carbohydrates, glycoside, saponins, steroids, triterpenes, flavonoids, alkaloids and tannins. Croton lobatus L. showed a dose dependent activity against micro organisms with C. lobatus 0.5 inhibited the growth of most bacteria at the zone of inhibition ≤ 21mm. This was also supported by in vivo antimicrobial assay. Secondary metabolite tannins, triterpenoids, flavonoids, crotonic acids and saponin were responsible for its antimicrobial activity against the tested microorganisms thereby supporting its usage by the traditional medicine practitioner in Nigeria to treat chronic wounds. Bangladesh J. Sci. Ind. Res.54(2), 139-146, 2019
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