Fenugreek powder exerts protective effects on alcoholised rats kidney, highlighted using ultrastructural studies

Vol. 56 No. 2 Suppl., 2015
This supplement was not sponsored by Outside Organizations.

ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

George Ciprian Pribac, Mircea Florin Sferdian, Carmen Neamtu, Constantin Craciun, Corina Luminita Rosioru, Aurel Ardelean, Bogdan Dan Totolici

Trigonella foenum-graecum (TFG) seeds exert a protective antioxidant effect and membrane protector through their rich content in polyphenolic flavonoids. The previous research focused on the hypoglycemic action of the seeds, with scarce studies on the preventive effects in the pathology of the kidney. Our work was conducted on an experimental in vivo model; the animals were given two different concentrations of TFG seeds, consequently to alcohol intoxication. Transmission electron microscopy (TEM) analysis showed vacuolation in cytoplasm, edemas at the apical pole of the nephrocytes, diffusion of the cytoplasmic and mitochondrial matrix and the increase in number of the lysozymes and especially peroxisomes, as well as the congestion of blood capillaries. In the case of the groups T5R and T10R, which received Trigonella powder together with ethanol, the structural and ultrastructural changes produced by the ethylic intoxication were more reduced, being somewhat improved in the T5R group. Therefore, the majority of the cells nuclei have retained their spherical shape, being at the same time predominantly euchromatic, with little heterochromatin and evenly dispersed. Our results suggest the use of Trigonella seeds as a food supplement to prevent cellular deterioration and improve renal morphology and function.

Corresponding author: Carmen Neamtu, Senior Lecturer, MD, PhD; e-mail: carmen.neamtu@gmail.com

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ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Adela-Corina Nechifor-Boila, Andrada Loghin, Victor Vacariu, Vasile-Bogdan Halatiu, Angela Borda

Optimal recovery of nucleic acids from formalin-fixed paraffin-embedded (FFPE) tissues is highly dependent on a series of pre-extraction steps, mainly related (but not limited) to fixation. The aim of our study was to investigate if the storage period of the FFPE blocks had a significant effect on the isolated DNA. We examined the quantity and purity of the isolated DNA from 83 FFPE blocks, corresponding to malignant thyroid (n=28) and renal (n=55) carcinomas that had been stored in our department for up to eight years. The DNA extraction protocol was based on a precipitation method (MasterPure DNA Purification Kit, Epicentre), in accordance to the manufacturer instructions, optimized in our laboratory. A spectrophotometer was used to determine the yield (A260) and purity (A260/A280 ratio) of the isolated DNA. We successfully isolated good DNA quantity and purity from all our study cases (mean concentration: 223.4+/-104.16 ng/micro-L; mean A260/A280 ratio: 1.68+/-0.09). Moreover, no statistically significant differences were observed between tumor blocks stored for 2-3 years and 7-8 years, respectively, both in terms of DNA quantity (p=0.196) and purity (p=0.663). In conclusion, we successfully validated an efficient, reproducible DNA extraction technique that provided a good range of DNA concentrations and purity, regardless the type of tissue (thyroid or kidney). Moreover, we demonstrated that the storage period of the FFPE blocks does not have a significant influence on the DNA quantity and purity.

Corresponding author: Andrada Loghin, Associate Professor, MD, PhD; e-mail: andradaloghin@yahoo.com

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