Accessible Requires Authentication Published by De Gruyter March 11, 2017

Evaluation of the sub-chronic toxicity profile of the corm of Xanthosoma sagittifolium on hematology and biochemistry of alloxan-induced diabetic Wistar rats

Olayinka A. Oridupa, Oluyemisi F. Folasire and Adedotun J. Owolabi

Abstract

Background

Hematological and biochemical changes associated with diabetes mellitus and probable reversal were assessed in alloxan-induced diabetic Wistar rats fed with varied percentages of Xanthosoma sagittifolium corm feed (Xs). The changes were compared to normoglycemic rats and diabetic rats treated with glibenclamide.

Methods

The study had eight groups in all with group 8 (control) consisting of five normoglycemic rats fed with normal rat pellets (Nrp). Diabetes was experimentally induced by intraperitoneal injection of alloxan to normoglycemic rats. Diabetic rats (serum glucose >200 mg/dL) at 48 h postinjection were randomly divided into the seven groups, each diabetic group consisting of five rats. One group was untreated and fed with Nrp, four groups were fed with 25 %, 50 %, 75 % or 100 % Xs, one group was fed with 100 % Xs and administered with glibenclamide, while a 7th group was fed with Nrp and administered with glibenclamide.

Results

This study shows that treatment of diabetes with corm of X. sagittifolium increases cellular response to inflammation which is required for body defense against assaulting agents. Decreased serum protein levels observed in untreated diabetic rats were restored in diabetic rats fed with X. sagittifolium corm with particular increase in serum albumin levels but depression of globulin fraction, except in rats fed with X. sagittifolium feed and administered with glibenclamide. X. sagittifolium showed a potent antihyperglycemic effect and corrected the dyslipidemia in a manner comparable to that observed for glibenclamide. Although HDL levels were still low, significant (p<0.05) decrease of LDL levels was a positive indicator of reduced risk for development of cardiovascular and/or coronary heart disease.

Conclusions

X. sagittifolium corm can be recommended for inclusion in diets of diabetics without causing further deterioration of health of the diabetic patients.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Employment or leadership: None declared.

  4. Honorarium: None declared.

  5. Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.

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Received: 2016-7-19
Accepted: 2017-1-12
Published Online: 2017-3-11
Published in Print: 2017-3-10

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