Human Nutrition and Dietetics

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Subject: search.filters.subject.Xanthosoma sagittifolium

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    Evaluation of the sub-chronic toxicity profile of the corm of Xanthosoma sagittifolium on hematology and biochemistry of alloxan-induced diabetic Wistar rats
    (De Gruyter, 2017) Oridupa O. A.; Folasire, O. F.; Owolabi, A. J.
    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 48h 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.
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    Effect of traditional treatment of diabetes mellitus with Xanthosoma sagittifolium on the male reproductive system of Alloxan-induced diabetic Wistar rats
    (Georg Thieme Verlag KG, 2017) Oridupa, O. A.; Folasire, O. F.; Owolabi, A. J.; Aina, O.
    Introduction: The management of diabetes mellitus (DM) targets glycemic control as well as prevention or reversal of other complications associated with the metabolic disorder. One of such complications is the infertility which has been traced to oxidative stress and DNA damage caused by DM. Subjects and methods: In this study, experimentally-induced diabetic male Wistar rats were fed with Xanthosoma sagittifolium (cocoyam) for 14 days and its effect on sperm morphology and characteristics, as well as histology of the testes were assessed. X. sagittifolium corm feed (Xs) were reconstituted with commercial rat feed to contain 25, 50, 75 or 100% X. sagittifolium on a weight/weight basis. Result: One primary and 7 secondary cell abnormalities were observed with overall increased total abnormal sperm cells in the diabetic rats. Sperm cell motility was significantly (p < 0.05) reduced in all diabetic rats, but diabetic rats fed with Xs showed increased motility and liveability. Sperm volume was unchanged, but the depressed sperm count in the untreated diabetic rats was increased in Xs-fed rats. Histology of Xs-fed diabetic rats showed reduction in seminiferous tubule diameter and luminal diameter which was significantly enlarged in untreated diabetic rats. Conclusion: X. sagittifolium significantly (p < 0.05) prevented further deterioration of sperm cell quality and reversed cell apoptosis as presented by increased sperm motility, liveability and count. In the overall, the chances of fertilization by sperm cells from diabetic patients will be increased as well as achievement of good glycemic control and prevention of further damage by the disease condition.
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    Anti-hyperglycemic effect of cocoyam (Xanthosoma sagittifollium) corm in alloxan-induced diabetic albino rats
    (Academic Journals, 2016) Folasire, O. F.; Oridupa, O. A.; Owolabi, A. J.; Adepoju, O. T.
    Diabetes mellitus constitutes a global public health concern and dietary approach is key to the control and prevention of lethal complications. This study investigated the hypoglycemic and anti-hyperglycemic effects of Xanthosoma sagittifolium-incorporated diets in normoglycemic and alloxan induced diabetic rats. Seventy normoglycemic male Wistar strain albino rats (120 to 200 g) were divided into two groups of thirty-five each. Group 1 was randomly distributed into seven subgroups and each subgroup assigned to 100% rat pellets, X. sagittifolium-incorporated rat pellet (25, 50 and 75%), 100% X. sagittifolium, 100% X. sagittifolium + Glibenclamide (oral hypoglycaemic agent for treatment of diabetes) or 100% rat pellets + Glibenclamide. Diabetes was induced in Group 2 rats fasted for 12 h by intraperitoneal injection of Alloxan (100 mg/kg body weight). Initial fasting blood glucose levels (BGL) were recorded, and alloxan-treated rats with BGL >200 mg/dl 48 h post-induction were considered diabetic and divided into seven subgroups. Dietary treatment was carried out, and blood glucose level (BGL) monitored for 14 days. Data obtained were analyzed using one way analysis of variance (ANOVA) and Tukey’s post-hoc test at p< 0.05. X. sagittifolium caused a significant reduction in the BGL of alloxan-induced diabetic rats (p0.05) but no hypoglycemic effect in normoglycemic rats. Rats fed 25% (BGL:165.2±16.9 mg/dl), 50% (BGL: 189.2±15.9 mg/dl) and 75% (BGL:152.0±23.0 mg/dl) X. sagittifolium showed better control of BGL by 24 h post-prandial compared with rats administered glibenclamide (BGL: 195.0±18.6 mg/dl) and 100% X. sagittifolium (BGL: 221.0±17.0 mg/dl). Rats fed 75% (BGL: 118.4±11.0 mg/dl) or 100% (BGL: 97.0±17.1 mg/dl) X. sagittifolium had better controlled BGL compared with rats fed pellets and pellets + glibenclamide (BGL: 154.2±19.8 mg/dl) on day 7. X. sagittifolium corm has an antihyperglycemic effect, and its consumption should be encouraged among diabetic patients as a good replacement for other high-calorie diets.