Iranian Journal of

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Background: Experimental studies have shown that walnut (Juglans regia) intake decreases the risk of coronary heart disease (CHD). Walnut decreases the levels of atherogenic lipids such as TG, LDL-C and VLDL-C. Mainly the effect is induced via 3- Poly Unsaturated Fatty Acids (3-PUFA). Walnuts are a rich source of these fatty acids, especially -Linolenic acid (C18:3 9, 12, 15).
Methods: We assigned 20 hypercholesterolemic male Rats (200-250g) to four groups, and fed with four diet concentration of oil extract Persian walnuts(J. regia)(Lavasanate) (w/w ) as complementary diet: control group (0% oil extract) and cases 5%(1g oil extract/1g weight/1 day) ,7.5%(1.5g oil extract/1g weight/1 day),10%(1g oil extract/1g weight/1 day) for eight weeks.
Results: Results revealed there is a positive effect on the decreasing of TG(14%) ,TC(7.8%) , LDL-C(11%),VLDL-C(12%) serum concentrations, with increasing consumption of oil extract Persian walnuts (5% ,7.5% and 10%).
Conclusion: In view of the positive effect of oil extract Persian walnuts (J. regia) consumption on decrease serum concentration of TG, TC, LDL-C and VLDL-C known as atherogenic lipids and lipoproteins, it may be suggested as a CHD protective dietary supplement.

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Background: Diabetes accompanies with hormonal, biochemical changes, and metabolic damages are of body. So in this research, therapeutic effect of the blue mesocarp extract on streptozotocin diabetes has been discussed.

Methods: 30 adult Westar rats were divided into five groups six below. Witness group: that at the same time by injecting (STZ) to diabetic rats citrate buffer has been injected into them as the attribute. First experimental group: became diabetes by injecting 55mg/kg (STZ). Second experimental group and Third experimental group and Fourth experimental group: including six diabetic rats that were treated by injecting daily 100, 150& 200mg blue mesocarp extract of walnut end of week 13direct bloodletting from the heart has been achieved due to study of One way anova and a further test of TUKEY were consumed then samples were delivered to the lab for insulin hormone and blood sugar measuring

Results: In the treated group there was a meaningful decrease in blood sugar in all doses of blue mesocarp extract of walnut than diabetic group and also a meaningful increase in serum's ansoline level and body weight in treated group than diabetic group. This study for the first time showed that using blue mesocarp extract of walnut in long period, meaningfully decreases blood sugar in diabetic rats and it causes the meaningful increase of serum's ansoline in treated group.

Conclusion: diabetes redounds to decrease of ansoline hormone and increase of blood sugar by making free radicals and oxidative stresses. Blue mesocarp extract with ability of prevent and treating of oxidative stresses has an important role in improving the consequences of diabetes and also the increase of ansoline hormone.

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Background: Nesfatin-1 is an adipokine that released by adipose tissue and participated in the regulation of insulin activity and glucose metabolism. The aim of this research is the investigation the effect of aerobic training and walnut consumption on nesfatin-1 and insulin resistance index of women Type 2 diabetes.

Methods: 40 women aged 40 to 50  years old with type 2 diabetes after homogenization based on Bruce test were selected through targeted sampling and they were randomly assigned to four groups of training, walnut, training + walnut and control (each group was 10). The 8-week aerobic training was three sessions per week for 16 minutes with 65% of maximal heart rate in the first week, while in the eighth week it reached 30 minutes with 80% of maximal heart rate. The walnut groups each day replaced 25 to 27 grams of walnuts as part of a diet rich in PUFA fatty acids, replacing one third of total dietary fat. 24 hours before the first session and 48 hours after the last session of the protocol, all subjects received blood samples. The inter-subject inter-analysis variance analysis was used. The significance level was considered as P <0.05.

Results: In the training groups, weight, body mass index, glucose, insulin and insulin resistance decreased significantly and the maximum oxygen consumption and nesfatin -1 increased significantly(P<0.05). 

Conclusion: Aerobic training with this intensity and amount can be recommended as auxiliary treatment for type 2 diabetic women. Walnut consumption with this value did not affect the level of blood glucose, insulin resistance index and nesfatin-1 in type 2 diabetic women. It is recommended that high-dose walnuts be used for effective operation.