Thunbergia laurifolia Lindl (TL) has been traditionally used as an antidote, anti-inflammatory, and anti-drug addiction. This study investigated the burn wound healing activity of TL leaf extract (TLL) from supercritical CO2 extraction in rats. The extract was prepared to 2.5%, 5%, and 10% gel (TLL gel). Rats were induced to second-degree burn wounds. They were randomly divided into six groups (six rats/group), which five groups were topically applied gel base, 1% silver sulfadiazine gel, 2.5%, 5%, and 10% TLL gel, respectively, for 14 days. Six untreated burn rats were used as the control group. The rats in each group were evaluated for wound healing rate, histological parameters, and wound collagen content. Rats treated with 10% TLL gel had a higher wound healing rate than rats in the control and untreated groups. An increase in collagen content, which indicates good regeneration of wound skin, was observed in the TLL treated rats from a pathological study by Masson's trichrome and collagen content assay. The results from this study suggest that T. laurifolia leaf extract obtained by supercritical CO2 extraction promotes the recovery of wound skin by shortening the inflammation phase, increasing collagen content, and stimulating fibroblasts proliferation and migration in wound healing.
The aim of this research is to evaluate the hematological and biochemical activity of Bauhinia strychnifolia Craib leaf ethanol extracts in normal albino rats. Thirty-two male and female rats were divided into four groups, each with equal numbers of male (n=4), female (n=4). The control group was administered 1 ml of 10% tween 80. The experimental groups were administered ethanol with concentrations of 125, 250 and 500 mg/kg body weight (bw). After 21 days of treatment, the blood samples were collected for hematological: Red blood cell (RBC), hemoglobin (HGB), hematocrit (HCT), mean corpuscular volume (MCV), white blood cell (WBC), neutrophil (NEU), lymphocyte (LYMPH), monocyte (MONO), eosinophil (EO), basophil (BASO) and biochemical analysis; glucose (GLU), blood urea nitrogen (BUN), creatinine (CREA), cholesterol (CHOL), and triglyceride (TG). The results showed that both male and female rats that received 500 mg/kg bw Craib leaf ethanol extract have increased RBC, HGB, HCT and WBC. The hematological activity in male rats increased significantly (p<0.05) compared to the control group. The biochemical activity in male rats administered with 125 mg/kg bw significantly (p < 0.05) increased BUN, CHOL, and TG compared to the control group. No evidence of abnormalities was observed.
Objectives Garcinia mangostana (GM) pericarp extract recognizes for relieving skin disorders. It becomes a household fruit juice due to its high concentration of antioxidant compounds, including phenolic and α-mangostin. The purpose of this study was to optimize the conditions of Ultrasonic-Microwave Assisted Extraction (UMAE) of GM pericarp. Methods GM pericarp was extracted by UMAE and conventional decoction extraction. UMAE was created in nine different individuals and combined ultrasonic and microwave power. The amount of phenolic compound, “caffeic acid, ferulic acid”, α-mangostin, and total phenolic content (TPC) were compared. The optimized parameters were particle size of grounded raw material, microwave power, and ultrasonic power during water extraction. Results The optimized UMAE conditions combined 200 W microwave power and 200 W ultrasonic power to extract raw material grounded to 22.6 μm diameter particles (p≤0.05). The synergistic effect of ultrasonic and microwave-assisted extraction significantly (p≤0.05) impacted on the TPC, the yield of caffeic acid, ferulic acid, and α-mangostin. Conclusions Overall, the synergistic effect of ultrasonic and microwave extraction resulted in a significantly higher amount of bioactive compounds when compared to conventional decoction extraction (p≤0.001). These results demonstrated the advantages of UMAE for preparing GM pericarp extract for the food, cosmetic and pharmaceutical industries.
Thai traditional antinausea remedy is drug registered in the National List of Essential Medicines for the treatment of blood circulation disorders, dizziness, fatigue, and insomnia. Antinausea remedies have long been used, but their effects and action mechanisms remain poorly understood. Here, hypnotic, sedative, and anxiolytic activities of antinausea remedies were evaluated. This preclinical trial assessed the hypnotic, sedative, and anxiolytic activities of antinausea remedies. Thai traditional antinausea remedy was extracted by decoction in deionized water until exhaustion and concentrated to dryness. Anxiolytic activities were evaluated using elevated plus-maze and open-field tests for vehicle control group compared to treatment groups (50, 100, and 200 mg/kg). Hypnotic and mechanistic studies were performed using thiopental sodium-induced sleeping time with benzodiazepine receptor antagonist test. In the thiopental sodium-induced sleeping time test, vehicle control groups were compared to treatment groups (10, 50, and 100 mg/kg). In addition, GABAergic agonistic effect vehicle control groups were pretreated with 3.5-mg/kg flumazenil before sterile water and compared to the treatment group which also received flumazenil before 100 mg/kg extract. Data were statistically analyzed using analysis of variance followed by multiple comparison testing. The aqueous extract was found to be a hypnotic and sedative agent with a dose response either as latent period or prolonged sleeping time ( P < 0.05) and a successive GABAergic agonistic effect. Locomotor determination revealed the tendency to relieve anxiety. Thai traditional antinausea remedy can induce sleep and be safely used to reduce anxiety.
The present study was aimed to evaluate the effect of Thai Traditional anti-nausea remedy against haematological and biochemical effects in animals in the acute toxicity and sub-acute toxicity phase. Twenty-two male and female rats were divided into four groups with equal numbers of sex, each group were respectively received distilled water, 500, 1000 and 2000 mg/kg body weight as a single dose by gavage. While the experiment in the sub-acute phase, eighteen male and female rats were divided into three groups with equal numbers of sex. Each group were respectively given distilled water, 500 and 1000 mg/kg body weight once a day for the duration of the experiment until collecting blood samples. The blood samples were collected for haematological: Red Blood Cell (RBC), Haemoglobin (HGB), Hematocrit (HCT), Mean Corpuscular Volume (MCV), White Blood Cell (WBC), Neutrophil (NEU), Lymphocyte (LYMPH), Monocyte (MONO), Eosinophil (EO), Basophil (BASO) and biochemical analysis; Glucose (GLU), Blood Urea Nitrogen (BUN), Creatinine (CREA), Cholesterol (CHOL) and Triglyceride (TG). The results showed that the remedy caused behavioural adverse effects, but no mortality observed. In the acute toxicity phase, single oral administration of anti-nausea remedy increased mean difference compared to the control group on Creatinine level and decreased in AST level and ALP level (P<0.05). In the subacute study, daily oral administration of the remedy did not result in death or changes in the body weight and food consumption but also showed comparable results on renal function marker including increasing of BUN levels and decreasing of AST level and ALP level (P<0.05). In haematological and some biochemical analyses showed few disadvantageous effects. Based on the results obtained, although there were some changes in blood chemistry values, these were small changes not higher than reference values, indicating that the remedy was safe to take for a short period of time.
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