Molecules (Apr 2019)

Optimization of Hyperglycemic Induction in Zebrafish and Evaluation of Its Blood Glucose Level and Metabolite Fingerprint Treated with <i>Psychotria malayana</i> Jack Leaf Extract

  • Khaled Benchoula,
  • Alfi Khatib,
  • Fairuz M. C. Quzwain,
  • Che Anuar Che Mohamad,
  • Wan Mohd Azizi Wan Sulaiman,
  • Ridhwan Abdul Wahab,
  • Qamar Uddin Ahmed,
  • Majid Abdul Ghaffar,
  • Mohd Zuwairi Saiman,
  • Mohamed F. Alajmi,
  • Hesham El-Seedi

DOI
https://doi.org/10.3390/molecules24081506
Journal volume & issue
Vol. 24, no. 8
p. 1506

Abstract

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A standard protocol to develop type 1 diabetes in zebrafish is still uncertain due to unpredictable factors. In this study, an optimized protocol was developed and used to evaluate the anti-diabetic activity of Psychotria malayana leaf. The aims of this study were to develop a type 1 diabetic adult zebrafish model and to evaluate the anti-diabetic activity of the plant extract on the developed model. The ability of streptozotocin and alloxan at a different dose to elevate the blood glucose levels in zebrafish was evaluated. While the anti-diabetic activity of P. malayana aqueous extract was evaluated through analysis of blood glucose and LC-MS analysis fingerprinting. The results indicated that a single intraperitoneal injection of 300 mg/kg alloxan was the optimal dose to elevate the fasting blood glucose in zebrafish. Furthermore, the plant extract at 1, 2, and 3 g/kg significantly reduced blood glucose levels in the diabetic zebrafish. In addition, LC-MS-based fingerprinting indicated that 3 g/kg plant extract more effective than other doses. Phytosterols, sugar alcohols, sugar acid, free fatty acids, cyclitols, phenolics, and alkaloid were detected in the extract using GC-MS. In conclusion, P. malayana leaf aqueous extract showed anti-diabetic activity on the developed type 1 diabetic zebrafish model.

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