Safety profile of Irvingia gabonensis (Aubry-Lecomte ex O’Rorke) Baill. root bark extract: Acute and sub-acute toxicity studies in Wistar rats

The study focused on evaluating the toxicity profile of the methanol stem bark extract of Cadaba farinose (Forssk), considering possibilities of adverse effects arising from continual use of herbal plants especially in the management of long-term conditions. Cadaba farinosa is a slender shrub plant widely used traditionally in the treatment of various diseases such as diabetes mellitus, inflammations, rheumatic pains and various infections including skin and intestine both in Africa and India. The acute toxicity study and sub-acute toxicity studies were carried out in Wistar rats using Lorkes Method (1983) and the OECD Guidelines 425. For the sub-acute toxicity studies, twenty rats weighing between 120 and 170g were randomly grouped into 4 groups of 5 rats each. Group 1 (control) received 10ml/kg of distilled water and the others received doses of 40, 200 and 1000mg/kg p.o of extract for 28 days. The acute toxicity revealed no mortality or behavioural signs of toxicity in both phases up to 5000mg/kg. The haematological indices revealed a significant (p<0.05) increase in the WBC count, MCV and PLT of the groups that received 1000mg/kg of the extract after treatment for 28 days. The liver function test showed a significant increase (p<0.05) in AST and ALT. Renal indices showed a significant decrease in creatinine and a significant increase (p<0.05) in plasma Na+, K+ and Cl- ion concentration across the groups. Histopathological section of the spleen revealed follicular hyperplasia. The results suggest that the plant could be slightly toxic to the liver and the spleen on long-term use.

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acute and sub-acute toxicity studies of aqueous leaf extract of launaea taraxacifolia (willd.) in wistar rats

Journal of Complementary Medicine Research ◽

10.5455/jcmr.2021.12.01.11 ◽

2021 ◽

Vol 12 (1) ◽

pp. 95

Author(s):

Millicent Umaru ◽

Kabiru Abubakar ◽

Gabriel Uyaiabasi ◽

Giaze Tijjani ◽

Yusuf Alkali ◽

...

Keyword(s):

Acute Toxicity ◽

Wistar Rats ◽

Leaf Extract ◽

Toxicity Studies ◽

Aqueous Leaf Extract

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Acute and Subacute Toxicity Studies of the Ethyl Acetate Soluble Proanthocyanidins of the Immature Inflorescence of Cocos nucifera L. in Female Wistar Rats

BioMed Research International ◽

10.1155/2019/8428304 ◽

2019 ◽

Vol 2019 ◽

pp. 1-12

Author(s):

C. P. Ekanayake ◽

M. G. Thammitiyagodage ◽

S. Padumadasa ◽

B. Seneviratne ◽

C. Padumadasa ◽

...

Keyword(s):

Body Weight ◽

Acute Toxicity ◽

Ethyl Acetate ◽

Wistar Rats ◽

Cocos Nucifera ◽

Toxicity Study ◽

Immature Inflorescence ◽

Subacute Toxicity ◽

Toxicity Studies ◽

Female Wistar Rats

Ayurvedic and traditional medical practitioners of Sri Lanka use the decoction of the immature inflorescence of Cocos nucifera L. (IC) variety aurantiaca for the treatment of menorrhagia. The progestogenic effect of the ethyl acetate soluble proanthocyanidins (EASPA) of the IC in female rats at a dose of 3.5 mg/kg body weight has been reported. Acute and subacute toxicity studies of EASPA of the IC carried out using female Wistar rats according to Organization for Economic Co-operation and Development (OECD) guidelines 423 and 407, respectively, are reported herein. In the acute toxicity study, a single dose of EASPA (2000 mg/kg body weight) was orally administered to rats, which were monitored for 14 days. In the subacute toxicity study, rats were orally administered with EASPA daily for 28 days at doses of 1.75, 3.5, 7, and 14 mg/kg body weight. No rat in either the acute or subacute toxicity study exhibited mortality or clinical signs of toxicity. Further, these rats did not show any significant change in their mean body weight, food, and water intake, haematological and biochemical parameters as well as in the results of their histopathological examinations compared to those of control group rats. According to results of the acute toxicity, the LD50 of EASPA is estimated to be greater than 2000 mg/kg body weight. Considering the results of the subacute toxicity study, the oral administration of EASPA daily for 28 days was well tolerated up to the dose, 14 mg/kg by rats. These results will be useful in the development of a novel therapeutic agent from EASPA of the IC for the treatment of menorrhagia, which incapacitates a considerable proportion of women worldwide.

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Comparative Hepatic Effects of Hippocratea africana Root Bark Extract on Female and Male Albino Wistar Rats

British Journal of Pharmaceutical Research ◽

10.9734/bjpr/2016/22379 ◽

2016 ◽

Vol 9 (3) ◽

pp. 1-11

Author(s):

Jessie Ndem ◽

Efosa Ewere

Keyword(s):

Wistar Rats ◽

Bark Extract ◽

Root Bark

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Immunological and hematological effects of Irvingia gabonensis stem bark in sodium arsenite-exposed rats

GSC Biological and Pharmaceutical Sciences ◽

10.30574/gscbps.2021.15.1.0089 ◽

2021 ◽

Vol 15 (1) ◽

pp. 027-037

Author(s):

Efosa Godwin Ewere ◽

Ngozi Paulinus Okolie ◽

Jessie Idongesit Ndem ◽

Samson Adewale Oyebadejo

Keyword(s):

Blood Cell ◽

Wistar Rats ◽

Sodium Arsenite ◽

Stem Bark ◽

Control Treatment ◽

Bark Extract ◽

Tnf Α ◽

Hematological Effects ◽

Irvingia Gabonensis ◽

Mean Cell Hemoglobin

This study investigated the effect of ethanol stem bark extract of Irvingia gabonensis (ESEIG) on sodium arsenite (SA)-induced pro-inflammatory cytokines and hematological perturbations in Wistar rats. Fifty-five Wistar rats weighing 100 g - 179 g were distributed into eleven groups (n=5). Group 1 had feed and water only. Group 2 received 4.1 mg/kg body weight (kgbw) of SA. Groups 3-11 received SA and/or ESEIG. Treatment was done orally for 14 days. Interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), interleukin-10 (IL-10), interleukin-4 (IL-4) concentrations, hemoglobin (HB) concentration, red blood cell (RBC) count, packed cell volume (PCV), mean cell hemoglobin concentration (MCHC), mean cell hemoglobin (MCH), mean corpuscular volume (MCV), white blood cell (WBC) count and its differentials and platelet (PLT) count were used to investigate the immunological and hematological effects of ESEIG. Exposure to SA produced significant (p ˂ 0.05) increases in hepatic IL-1β, TNF-α, IL-10 and IL-4 concentrations relative to control. Administration of SA also caused significant (p ˂ 0.05) decreases in HB, RBC, PCV, MCHC, MCH, MCV and PLT and significant (p ˂ 0.05) increases in WBC, lymphocytes, monocytes, eosinophils and neutrophils compared with control. Treatment with ESEIG concomitantly and 2 weeks after SA exposure, mitigated the deleterious effect of SA. However, ESEIG alone at various doses caused significant (p ˂ 0.05) increases in some of the assayed parameters, compared with control. These results imply that ESEIG may be protective against SA-induced inflammation and hematological derangements in Wistar rats. Its exclusive administration on chronic basis may also be slightly toxic.

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