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Ugbogu, Eziuche Amadike,Akubugwo, Iroha Emmanuel,Ude, Victor Chibueze,Gilbert, James,Ekeanyanwu, Blessing Korean Society of ToxicologyKorea Environmental Mu 2019 Toxicological Research Vol.35 No.2
Lentinus squarrosulus (Mont.) is an edible wild mushroom with tough fruiting body that belongs to the family Polyporaceae. It is used in ethnomedicine for the treatment of ulcer, anaemia, cough and fever. Recent studies have demonstrated its anticancer, anti-diabetic and antioxidant properties. However, little or no information is available regarding the bioactive components and toxicological study of wild dried L. squarrosulus. Therefore, this study investigated the bioactive components of aqueous extract of boiled wild dried L. squarrosulus and its toxicological effects in rats. The extract of L. squarrosulus was subjected to GC-MS analysis. The acute toxicity test was performed by oral administration of a single dose of up to 5,000 mg/kg extract of L. squarrosulus. In subacute study, the rats were orally administered extract of L. squarrosulus at the doses of 500, 1,000 and 1,500 mg/kg body weight daily for 14 days. The haematological, lipid profile, liver and kidney function parameters were determined and the histopathology of the liver and kidney were examined. The GC-MS analysis revealed the presence of bioactive compounds; 1-tetradecene, fumaric acid, monochloride, 6-ethyloct-3-yl ester, 9-eicosene, phytol, octahydropyrrolo[1,2-a]pyrazine and 3-trifluoroacetoxypentadecane. In acute toxicity study, neither death nor toxicity sign was recorded. In the sub-acute toxicity study, significant differences (p < 0.05) were observed on creatinine, aspartate aminotransferase, alanine aminotransferase, total cholesterol, triglycerides and high-density lipoprotein cholesterol. Whilst no significant differences (p > 0.05) were observed on packed cell volume, heamoglobin, red blood cell, white blood cell and alkaline phosphatase, in all the tested doses. No histopathological alterations were recorded. Our findings revealed that aqueous extract of L. squarrosulus may have antimicrobial, antinocieptive and antioxidant properties based on the result of GC-MS analysis. Results of the toxicity test showed no deleterious effect at the tested doses, suggesting that L. squarrosulus is safe for consumption at the tested doses.
Eziuche Amadike Ugbogu,Iroha Emmanuel Akubugwo,Victor Chibueze Ude,James Gilbert,Blessing Ekeanyanwu 한국독성학회 2019 Toxicological Research Vol.35 No.2
Lentinus squarrosulus (Mont.) is an edible wild mushroom with tough fruiting body that belongs to the family Polyporaceae. It is used in ethnomedicine for the treatment of ulcer, anaemia, cough and fever. Recent studies have demonstrated its anticancer, anti-diabetic and antioxidant properties. However, little or no information is available regarding the bioactive components and toxicological study of wild dried L. squarrosulus. Therefore, this study investigated the bioactive components of aqueous extract of boiled wild dried L. squarrosulus and its toxicological effects in rats. The extract of L. squarrosulus was subjected to GC-MS analysis. The acute toxicity test was performed by oral administration of a single dose of up to 5,000 mg/kg extract of L. squarrosulus. In subacute study, the rats were orally administered extract of L. squarrosulus at the doses of 500, 1,000 and 1,500 mg/ kg body weight daily for 14 days. The haematological, lipid profile, liver and kidney function parameters were determined and the histopathology of the liver and kidney were examined. The GC-MS analysis revealed the presence of bioactive compounds; 1-tetradecene, fumaric acid, monochloride, 6-ethyloct-3-yl ester, 9-eicosene, phytol, octahydropyrrolo[1,2-a]pyrazine and 3-trifluoroacetoxypentadecane. In acute toxicity study, neither death nor toxicity sign was recorded. In the sub-acute toxicity study, significant differences (p < 0.05) were observed on creatinine, aspartate aminotransferase, alanine aminotransferase, total cholesterol, triglycerides and high-density lipoprotein cholesterol. Whilst no significant differences (p > 0.05) were observed on packed cell volume, heamoglobin, red blood cell, white blood cell and alkaline phosphatase, in all the tested doses. No histopathological alterations were recorded. Our findings revealed that aqueous extract of L. squarrosulus may have antimicrobial, antinocieptive and antioxidant properties based on the result of GC-MS analysis. Results of the toxicity test showed no deleterious effect at the tested doses, suggesting that L. squarrosulus is safe for consumption at the tested doses.
Ekweogu Celestine Nwabu,Ude Victor Chibueze,Nwankpa Promise,Emmanuel Okezie,Ugbogu Eziuche Amadike 한국독성학회 2020 Toxicological Research Vol.36 No.3
Solanum aethiopicum is used in ethnomedicine for the treatment of overweight, constipation and anaemia. This study evaluated the ameliorative effect of aqueous leaf extract of S. aethiopicum on phenylhydrazine-induced anaemia in rats. Acute toxicity was determined in male and female rats (n = 5/group/sex) by oral administration of single dose of up to 5000 mg/ kg of the S. aethiopicum extract. The experimental rats were randomly grouped into five (5) groups of 6 rats each. Group (i) served as normal control, group (ii) negative control, group (iii) standard drug-5 mg/kg ferrous sulphate, groups (iv) and (v), 200 and 400 mg/kg of S. aethiopicum extract respectively. Phenylhydrazine (PHZ) was administered intraperitoneally at the dose of 50 mg/kg body weight for two consecutive days to groups (ii–v). After 14 days, the rats were sacrificed; blood, liver and kidney were collected. The haematological, lipid profile, liver and kidney function parameters were determined and the histopathology of the liver and kidney were examined. In acute toxicity study, no signs of toxicity or death were recorded. The study shows an observable significant (P < 0.05) increase in packed cell volume, haemoglobin and red blood cell counts at 400 mg/kg S. aethiopicum extract in both the male and female rats when compared to other groups. Solanum aethiopicum extract at the dose of 400 mg/kg reduced aspartate aminotransferase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP), urea, creatinine and chloride. The results of this study lent credence to the use of S. aethiopicum leaf as an anti-anaemic tonic with a wide margin of safety and hepato/reno-protective potentials.