سیمین محکی زاده

Estimating limb length based on the remaining parts of each limb is one of the most important challenges among anatomists and forensic specialists. The aim of this study was to evaluate the relationship between upper limb length and length of upper limb segments to derive a regression formula for estimating upper limb length.

Four parameter of upper limb length, arm length, forearm length and arm length were taken from 199 students of Tehran University of Medical Sciences (18-25 years old) and then statistically analyzed using SPSS 16 software. And linear regression model was used to estimate the length of the upper limb.

By examining the Pearson correlation in the whole statistical population, a direct relationship was found between the total length of the upper limb and arm length, forearm length and arm length (p = 0.0001, 0.803, 0.824, 0.836, respectively).

We found a strong correlation between upper limb length and arm length, forearm length and length. Regression analysis also showed that arm and forearm length were more valuable than forearm length for estimating upper limb length.

Overweight and obesity are increasing in the last three decades indicates the strong influence of environmental factors. Fats are the most important sources of human food which is considered as one of the reason for obesity. Among the components of the diet, poly unsaturated fatty acids (PUFA) are resulting in obesity. This study was done to evaluate the effect of diets containing poly unsaturated fatty acid on body weight and colon macroscopic properties in rabbit. In this experimental study, 24 female rabbits were allocated into three experimental groups including short, medium and long term and control groups (three subgroups). Animals in experimental groups were received diet containing corn oil for one month (short term), two months (medium term) and three months (long term). Animals at the end of the first, second and third months, were weighed and dissected and taken biopsy from colon. The macroscopic properties of the samples including shape and arrangement of Haustration were evaluated. Over weight was not in the long – term consumption of corn oil in comparison with controls, but Haustra organization in different parts of the colon were disappeard in experimental animals. The diet containing poly unsaturated fatty acid causes macroscopic alteration in rabbit colon.