Background Plants have been used as medicine since ancient time and contributed immensely to health care delivery system globally. The aim of this study was to evaluate the phytoconstituents, antioxidant and hematinic property of Mojeaga herbal remedy (Alchornea cordifolia, Sorghum bicolor and Pennisetum glaucum) in animal model. Standard protocols were used to analyze the qualitative and quantitative phytochemical, gas chromatography mass spectrum (GC–MS), and in vitro antioxidant studies (1, 1-diphenyl-2-picrylhydrazyl) (DPPH), ferric reducing antioxidant power (FRAP) and total antioxidant capacity were also used to assess these plants. Ninety Wistar rats of both sexes were selected for this study. They were administered with 40 mg/kg phenylhydrazine hydrochloride to induce anemia for 5 days afterward treated with oral dose of 0.5, 1.0 and 2.0 ml/kg Mojeaga herbal remedy for 10 days. Hematological, CD4 and CD8, and histology of the blood and bone marrow were analyzed. Results The phytochemical screening showed the presence of flavonoids, alkaloids, tannins, saponins, cardiac glycosides, terpenoids and phenol. Flavonoids and phenol were more in abundant (917 and 1445 mg/kg). The GC–MS analysis shows the presence of disulfide, dimethyl, 2-Methoxy-4-vinylphenol, 1-Dodecanol, 10-Phenyldecanoic acid, 8-Phenyloctanoic acid, n-Hexadecanoic acid and 15-Hydroxypentadecanoic acid. The antioxidant scavenging property showed the potential capacity of the herbal remedy to scavenge free radicals against oxidative stress at 24%, 53.8% 1609.9 µM Fe II/ g extract when compared with ascorbic acid. The hematological indexes showed a significant increase in red blood cells, hemoglobin, hematocrit mean corpuscular hemoglobin, mean corpuscular hemoglobin concentrations, mean corpuscular volume, CD4 and CD8 count at day 10 of the male and female rats with the values of RBC (6.72, 7.34, 7.10 × 106/ul) (6.78, 6.75, 6.79 × 106/ul), hematocrit (47.8, 51.5, 49.75%) (48.05, 44.80, 44.60%) and hemoglobin (16.5, 18.05, 17.1 g/dl) (16.6, 15.6, 15.75 g/dl) when compared with the control (p < 0.05). The histo-architectural structure of the bone marrow showed a stimulating effect of myeloid/erythroid cell ratio > 60 in the treatment groups when compared with 40 mg/kg phenylhydrazine alone. Conclusions In conclusion, mojeaga herbal remedy elicited hematinic property that validated the folklore report; hence, further evaluation will be required.
Peltophorum pterocarpum (family; Fabaceae) is an evergreen perennial crop grown in tropical gardens. Different parts of this tree are being used for the management of many diseases. This study investigated the acute toxicity, analgesic and anti-inflammatory potentials of n-hexane extract of P. pterocarpum stem bark. Acute oral toxicity of n-hexane extract of P. pterocarpum stem bark was investigated using standard method. Analgesic activity was investigated by using acetic acid-induced writhing model, using indomethacin as a reference drug. Antiinflammatory activity of n-hexane extract of P. pterocarpum stem bark was investigated by using formalin-induced paw licking model, using aspirin as standard drug. In the acute toxicity study, mortality was observed at 500 and 2500 mg/kg body weight. In the acetic acid induced writhing test, the n-hexane extract of P. pterocarpum (100 and 200 mg/kg body weight) showed a significant reduction in the number of writhing with 55.5 % and 60 % of inhibition respectively. In formalin-induced rat paw oedema test for acute inflammation, the n-hexane extract of P. pterocarpum in 50, 100 and 200 mg/kg body weight showed 26.00 %, 27.89 % and 32.27 % inhibition of oedema respectively after 4hours, which is comparable to that of standard drug-aspirin (33.59 %). These results validated that the extract of P. pterocarpum possesses significant analgesic and anti-inflammatory properties.
Introduction This study evaluates the anti-diabetic effect of ethanol extract of Stachytarpheta jamaicensis leaf on streptozotocin (STZ) - induced diabetic rats fed on high-fat diet (HFD). Methods Sets of male albino rats of the Wistar strain weighing between 180 and 250 g were exposed to high fat diet (margarine and oil from vegetable sources in a ratio of 2:1 w/v) for 3 weeks. Then the animals were fasted overnight; hyperglycemic state was induced using reduced dose of streptozotocin (35 mg/kg) and animals were randomly divided into five groups (n = 7); group A received the HFD + STZ (35 mg/kg i.p.); group B received HFD + STZ + gliberclamide (10 mg/kg; i.p); groups C, D and E were administered the HFD + streptozotocin with different doses of the ethanol extract (30, 35 and 100 mg/kg p.o., respectively). Results Results showed significant (p < 0.05) decrease in blood glucose concentration of the rats treated with different doses of S. jamaicensis extract and those treated with gliberclamide compared to the untreated diabetic rats (negative control). Significant (p < 0.05) reductions in activities of serum AST, ALP, total protein and bilirubin were noticed in the groups in contrast to the control. Levels of urea, creatinine, potassium and chloride were considerably (p < 0.05) low while sodium and bicarbonate levels were high in the groups except the control. Lipid profile revealed significant (p < 0.05) reduction in total cholesterol, triacylglycerol, LDL, VLDL while HDL levels were high in the groups compared to the control. The extract significantly (p < 0.05) ameliorated weight loss. Histopathology of the liver, kidney and pancreas showed ameliorative effect of the extract against the deleterious changes occasioned by the HFD and STZ induced diabetic state. Conclusion These findings have provided scientific basis for the use of S. jamaicensis in the treatment of diabetes mellitus in ethnomedicinal practices in Nigeria.
Background Plant medicine was dated back for decades and has immensely contributed to the health care system in several countries. This present study evaluated in vitro antioxidant, anti-anaemic and biosafety properties of n-hexane leaf extract of Ipomoea batatas L. in an animal model. The antioxidant property of the extract was expressed by 1, 1-diphenyl-1-picrylhydrazyl (DPPH) with an appropriate method. The extract was orally administered at graded doses (125, 250 and 500 mg/kg body weight) to determine its effect on 40 mg/kg phenylhydrazine hydrochloride-induced anaemia in rats at days 1, 7 and 14 using a standard protocol. Acute and subacute toxicological evaluations were based on initial behaviour, mortality and histological examination of the organs. Results The antioxidant study of the extract showed 60.14% in the presence of DPPH and ascorbic acid. The haematological parameters (RBC, HGB, HCT, MCV, MCH and MCHC) significantly increased at p value < 0.05 in the treated groups compared with control groups. Specifically, there is a significant increase in the treatment groups, namely red blood cells (5.93, 6.78, 6.75), haematocrit (40.75, 44.05, 44.63) and haemoglobin (13.35, 14.70, 14.73), when compared with untreated control. Also, the results of the myeloid/erythroid ratio of the treated groups (20: 40, 21.7: 43.4 ratio) and (23. 3: 46.6 ratio) are compared with (15.0: 25.0 ratio) of 40 mg/kg phenylhydrazine and 25: 50 normal control of the bone marrow at day 14. No acute behavioural change or mortality was observed. Histological analysis exhibited normal physiological state of the visceral organs. Conclusions These findings support the folklore use of Ipomoea batatas L. leaf extract to reduce oxidative stress, treat anaemia and exhibit its safety at the highest doses of 500 mg/kg body weight.
Background Jatropha gossypiifolia L. is a widespread plant in tropical and sub-tropical countries used in traditional medicine. This study investigated the anti-diuretic and anti-hyperglycemia activities of J. gossypiifolia leave extract on streptozotocin-induced diabetic rats. Methods The leaves was shade dried, pulverized and prepared into extract. 30, 50 and 100 mg/kg of the leaves extracts of J. gossypiifolia was subject to diuretics and hyperglycemic properties using established protocol of diuretic and diabetes test on the rat bladders emptied via mild compression in the pelvic region and gently pulling of their tails. 0.5 ml/kg normal saline, reference drug and the tested were administered with a single dose of the various drugs, and Streptozotocin (STZ) was freshly prepared in 0.1 M citrate buffer with pH 4.5 prior to induction, animals were fasted 24 h and single dose of 45 mg STZ per kg body weight was administered intraperitoneally. Urine and blood samples were isolated from rats and centrifuged for the determination of renal function test. Diuretic and antidiabetic indexes where evaluated using adopted method. Results This study showed that, graded doses of the extract significantly increased diuretic effect, specifically at 100 mg/kg increased diuretic index at 4.29 and urine volume 5.06 and 10 mg/kg Hydrochlorothiazide with 6.23 ml when compared untreated group (1.18 ml) (p < 0.0001). Also, it regulated renal function in homeostatic state. Graded doses at (30, 50 and 100 mg/kg) of the extract significantly reduced streptozotocine induced increased blood glucose level at day 14 (84.00, 60.67 and 42.00 IU/mL) when compared with 20 mg/kg glibenclamide and diabetics control (81.67 and 463.00 IU/mL) (p > 0.05). Also, the extract maintained a normal body mass indexes, biochemical and anatomical structure. Conclusion The effect associated with J. gossypiifolia potentiated its anti-diuretic and anti-hyperglycemic properties as early stated in the ethnomedicinal reports.
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