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Showing 2 results for Shahriari

Somayeh Bahrami, Hossein Najafzadeh, Ali Shahriari, Sara Ahmadi, Mohammadhossein Razi Jalali ,
Volume 16, Issue 4 (winter 2017)
Abstract

Background & objectives: Polyamines such as putrescine, spermidine, and spermine are ubiquitous in all eukaryotic cells and play an essential role in cell division and differentiation. One way of polyamine biosynthesis is done by ornithine decarboxylase (ODC) which catalyzes the transformation of ornithine to putrescine. The aim of the present study was to evaluate the level of putrescine, spermidine and spermine in protoscolices, hydatid fluid and germinal layer and also to evaluate ODC activity.

Methods: In the present study putrescine, spermidine and spermine levels were investigated in germinal layers, hydatid fluids and protoscolices. To evaluate the activity of ODC, protoscolices were incubated with ornithine and changes in polyamines level were assayed. The samples were homogenized and liquid chromatography (HPLC) was used for polyamines measurement.

Results: Based on the results, putrescine was the lowest polyamine and since its level was not increased in protoscolices incubated with ornithine, ODC activity was not detected. Spermidine was the highest polyamine and the results showed that germinal layer contained the highest level of polyamines.

Conclusion: Overall, the results showed that ODC activity was not detected in hydatid cyst and level of polyamines in germinal layers  which contained rapidly proliferating cells was higher than other parts.


Naeim Erfani Majd , Zahra Soleimani, Ali Shahriari, Mohammadreza Tabandeh,
Volume 17, Issue 1 (spring 2017)
Abstract

Background and Objective: Since Abelmoschus esculentus plant has many medical benefits, the present study aimed to investigate the therapeutic effects of Okra Powder (Abelmoschus esculentus) against high-fat diet fed-streptozotocin (HFD/STZ)-induced diabetic rats.

Methods: In this experimental study, 25 Wistar Albino female rats were randomly divided into 5 groups: I: control group; II: healthy rats receiving A. esculentus (200 mg/kg); III (HFD/STZ group): Rats fed with high-fat diet (HFD) (60% fat) for 4 weeks and then injected low-dose STZ (35 mg/kg); IV: diabetic rats receiving A. esculentus (200mg/kg) and V: diabetic rats receiving metformin (200 mg/kg). At the end of experiment, biochemical parameters, including Fasting Blood Glucose (FBG), insulin levels, Homa-IR index, ALT, AST and lipid profile were measured. Pancreas and Liver samples were removed, and 5-6 µ sections were prepared and stained by H&E and aldehyde fuchsin staining.

Results: All the biochemical parameters, except HDL-C and insulin, were increased in diabetic rats, while these parameters were decreased in Okra supplementation group compared to diabetic rats (p<0.05). Furthermore, Okra improved the histological impairments of pancreas and liver, including vacuolization, and decrease of β-cells as well as hypertrophy and vacuolization of hepatocytes in diabetic rats.

Conclusion: Okra powder improved biochemical parameters, liver structure and restoration of beta cells of pancreas in diabetic rats. Thus, it can be considered a complementary therapy to improve diabetic patients.



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مجله دانشگاه علوم پزشکی اردبیل Journal of Ardabil University of Medical Sciences
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