Ameliorative Effect of Lecaniodiscus cupanioides (Sapindaceae) Aqueous Root Extract in Loperamide- Induced Constipated Rats

Purpose: To evaluate the efficacy of aqueous root extract of Lecaniodiscus cupanioidies Planch. (Sapindaceae) against loperamide-induced constipation in Wistar rats.Methods: Constipation was induced by oral administration of loperamide (3 mg/kg body weight). The constipated rats were orally treated daily either with 50, 150, 250 mg/kg body weight per day of the extract or 0.21 mg/kg bisacodyl (reference drug) for 7 days while the normal control group received distilled water. The feeding characteristics, body weight, faecal properties and gastrointestinal transit ratio were monitored throughout the study period. The activities of acid phosphatase (ACP), alkaline phosphatase (ALP), aspartate aminotransferase (AST), γ-glutaryltransferase (GGT) and lactate dehydrogenase (LDH) were also determined in the serum of the animals.Results: There was significant decrease (p < 0.05) between normal and constipated rats in the number of faecal pellets (54.06 and 45.43) while body weight increased (124.45 and 135.38 g) respectively. Administration of 250 mg/kg L. cupanioides extract to the constipated rats significantly normalized (p < 0.05) their body weight gain (8.15 g) and gastrointestinal ratio (87.75) compared to the constipated control. Serum levels of ACP and AST were significantly elevated (p < 0.05) in the 150 and 250 mg/kg dose groups compared to controls while ALP witnessed reduction. However, there was no alteration in the levels of GGT and LDH across all groups.Conclusion: The aqueous root extract of L. cupanioides possesses laxative activity in loperamideinduced constipated rats.Keywords: Constipation, Lecaniodiscus cupanioides, Gastrointestinal transit ratio, Loperamide, Bisacody

Phytochemical analysis and in vivo anti-malarial activities of aqueous extracts of Tithonia diversifolia and Parquetina nigrescens leaves in mice

This study was carried out to assess the acclaimed anti-malarial potentials of aqueous extracts of leaf of Tithonia diversifolia (TD) and Parquetina nigrecsens (PN) in mice. The phytochemical constituents and in vivo anti-malarial activities of individual and combined of aqueous leaf extracts of Tithonia diversifolia (TD) and Parquetina nigrecsens (PN) were investigated. Fifteen albino mice were infected by intraperitoneal injection of standard inocula (5 × 106) of chloroquine sensitive Plasmodium berghei (NK 65). The animals were randomly divided into 5 groups of 3 mice. Group I served as the control while group II received 5mg/kg body weight per oral of chloroquine diphosphate. Groups III – V were orally treated with 150mg/kg body weight extracts of TD, TD+PN and PN respectively. Phytochemical analysis revealed the presence of saponins, alkaloids and tannins in the aqueous extracts of TD and PN. There were 100, 90, 86 and 77 percent parasite inhibition in groups treated with Chloroquine, combination of Tithonia diversifolia and Parquetina nigrescens (TD+PN), Parquetina nigrescens (PN) and Tithonia diversifolia (TN) respectively on day 5. The mean survival time (MST) for the control animals was 7 days and chloroquine 25 days, while the TD+PN, PN and TD aqueous extracts recorded 19, 18 and 11 days respectively. The results indicated that the combined aqueous (TD+PN) extracts of Tithonia diversifolia and Parquetina nigrescens produced the best antimalarial activity, which provides a justification for their use in folklore medicine and may be promising alternative anti-malarial drug.Keywords: Tithonia diversifolia; Parquetina nigrescens, Plasmodium berghei, Anti-malarial, Phytochemica

Antipyretic and analgesic activities of aqueous extract of Acacia nilotica root

This study was designed to investigate the scientific basis for the use of Acacia nilotica root extract for treatment of fever and pain in traditional medical practice. Anti-Pyretic study was carried out using Brewerʼs yeast suspension to induce pyrexia. The hot plate, tail immersion and acetic acid-induced writhing tests were the nociceptive models used for analgesic study. Anti-pyretic and analgesic activity of the extract was compared with acetaminophen that was used as control drug. Five groups comprising five animals per group were used for each study. Group 1 was administered 10 ml/kg body weight of distilled water, Group 2 was administered 150 mg/kg body weight of acetaminophen while groups 3, 4 and 5 were administered 100, 200 and 400 mg/kg body weight of extract respectively as single oral dose. The extract produced significant dose-dependent reduction in rectal temperature of rats at 200 and 400 mg/kg body weight. Significant analgesic activities were also observed in the hot plate, tail immersion and acetic acid induced writhing, after administration of 200 and 400 mg/kg b.w of extract which is comparable to the control drug, acetaminophen. The results from this study showed that aqueous extract of Acacia nilotica root at 200 and 400 mg/kg body weight possess significant antipyretic and analgesic activities. This provides scientific support for its traditional medical use in the treatment of fever and pain.Keywords: Antipyrexia, Analgesia, Acacia nilotica, Brewerʼs yeast

Anti-diabetic activity of aqueous extract of Cochlospermum planchonii root in alloxan-induced diabetic rats

Aqueous extract of Cochlospermum planchonii root was investigated for antidiabetic activity in alloxan-induced diabetic rats. Thirty albino rats (110.33 ± 8.69 g) were randomized into six groups (A-F) such that group A (non-diabetic) received orally 0.5 ml of distilled water, thrice daily for 10 days. Animals in groups B, C, D, E and F which were all made diabetic with alloxan (150 mg/kg b. w., i.p.) also received 0.5 ml of glibenclamide (2.5 mg/kg b. w., p.o.), 25, 50 and 100 mg/kg b. w., p.o. of the extract respectively. The blood glucose of the alloxanized rats after 48 hours which ranged from 20.50-30.20 mmol/L were significantly (

Effect of Aqueous Extract of Cochlospermum Planchonii Rhizome on Some Kidney and Liver Functional Indicies of Albino Rats

Aqueous extract of Cochlospermum planchonii Hook. Ef. x Planch rhizome was investigated for its toxic effects in albino rats using some liver and kidney functional indices as ‘markers’. Thirty six albino rats weighing 200.08 ± 10.21 were randomly assinged into six groups (A–F) of six animals each. Animals in groups A–E were orally administered on daily basis with 1 ml of the extract corresponding to 50 mg/kg body weight of the extract for 1, 3, 5, 10 and 15 days while those in the control group received orally 1 ml of distilled water. Rats in all the groups were sacrificed 24 hours after the completion of their respective doses. The extract significantly (P<0.05) decreased alkaline phosphatase (ALP) activities in the liver leading to 80.95% loss by the end of the experimental period. While there was no consistent pattern in the kidney ALP activity and serum bilirubin level, the serum enzyme compared well (P>0.05) with the control value. There was no effect (P>0.05) on the acid phosphatase activity of the tissues and serum of the animals. The extract also reduced the urea, albumin and creatinine content in the serum of the animals. The alterations in the biochemical parameters by the aqueous extract of Cochlospermum planchoni may have consequential effects on the normal functioning of the liver and kidney of the animals. Therefore, the 50 mg/kg body weight of the aqueous extract of Cochlospermum planchoni rhizome may not be completley safe as an oral remedy

Toxico-Pathological Effects of Saponins from Massularia acuminata Stem in Male Wistar Rats

Saponins from Massularia acuminata stem have been implicated to be responsible for some of the pharmacological effects of the plant without recourse to its toxic implications. Therefore, the toxic implications of saponins from Massularia acuminata stem in some organs of male rats were investigated. Male rats (271.00±5.30 g) grouped into A, B, C and D were orally administered distilled water, 25, 50 and 100 mg/kg body weight of saponins for 14 days. The biochemical indices of tissue damage corroborated with histological studies were evaluated in male rats using standard methods. Saponin confirmed with vanillin-perchloric acid and 6% erythrocyte in phosphate buffered saline significantly (P&lt;0.05) increased serum potassium, sodium, phosphate, urea, creatinine, total and conjugated bilirubin; alkaline and acid phosphatases (ALP and ACP) in the kidney, liver and serum, glutamte pyruvate transaminase (GPT) in the liver and kidney. The testicular body-weight ratio, ALP, serum GPT, uric acid, globulin, albumin and calcium ions were reduced (P&lt;0.05). Glutamate oxaloacetate transaminase activity (GOT) increased in the kidney, testes and serum whereas it decreased in the liver. The histoarchitecture of the organs were preserved during esposure period. The saponins caused only functional dysfunction of the organs but not structural and thus not completely ‘safe’ as an oral remedy