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Introduction: Insulin-dependent diabetes mellitus (IDDM) or type 1 diabetes is an organ-specific autoimmune disease that caused by destruction of insulin-producing beta cells of the pancreas. Etiology of this disease is still unknown. It is seen that genetic and environmental factors play an important role for susceptibility to develop type 1 diabetes. The relationship between HLA associated factors and susceptibility to IDDM disease, was reported by several investigators. Also, some studies show that dermatoglyphics is associated with type 1 diabetes. However, it is maybe there is an association between HLA and dermatoglyphics inpatients'with type 1 diabetes and these characteristics could be applied for diagnosis of disease.
Materials and Methods: In this study, the prevalence of HLA (with using standard microlymphocytotoxicity method) and dermatoglyphics determined in 30 Iranian patients with IDDM and 30 normal healthy controls with similar ethnic background and the same geographical area.
Results: A significantly higher frequency of HLA-DQ, A2, DR3 and DQ2 were found in IDDM cases compared to the controls. The results obtain from dermatoglyphics showed that line ab was reduced in male and female type 1 diabetes. The reciever operating chractristics curve showed that the positive point for lines ab in right and left hands were 34.7 and 35.25, respectively.
Discussion: There is no association between HLA and dermatoglyphics.
With considering of genes encoding of HLA separated from genes determining dermatoglyphics, HLA typing and dermatoglyphics seem to be interesting tools for genetic studies related to type 1 diabetes. Further studies are recommended in order to provide more insight into the susceptibility to this disorder.

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Background: Essential hypertension which affects 1 billion people worldwide is a multifactorial disorder and influenced by genetic and environmental factors. In human at about 14th week of pregnancy, sweat gland anlagen appear at uniform intervals along the apices of the epidermal ridges. Once the pores of sweat gland form on the ridge, they are fixed at that location. Considerable amount of researches have shown that pores do not disappear, move or spontaneously generate over time. The goal of the present study was to examine whether there is a relationship between the number of palmar sweat gland pores and hypertension condition. Methods: By applying a digital microscope, the number of palamr sweat gland pores were counted in a circle area (12.5 –16.8 mm2) of certain anatomical regions (a, b, c triradials and fingers) in 75 hypertensive and 55 normotensive females. The average age of all patients was 60 years and the average age of all controls was 49 years and all patients had a familial background of hypertension. Results: Statistical analysis of the data showed that the mean count of sweat gland's pores on fingers and b triradial in hypertensive group was significantly lower than normotensive subjects. Conclusion: In conclusion, the results obtained from the present study indicate that there is a meaningful relation between the numbers of fingertip sweat glands pores and hypertension. This finding can be used for the prognosis and early detection of hypertension in susceptible persons, particularly among those with a familial background.

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Background: Research has shown that healthy individuals with no known cardiovascular risk factors who experience a stressful life are likely to develop cardiovascular diseases. Therefore, stress can be one of the most important risk factors involved in cardiovascular diseases. This study evaluated the possible effects of chronic stress induced by obligatory swimming and noise on coronary arteries histological changes. Materials and Methods: In this experimental trial, male Wistar rats were exposed to two different types of chronic stresses, including physical obligatory swim stress and psychological noise stress. After the last stress session, the rats were examined in terms of the ratio of the vessel lumen diameter to outer diameter, ratio of media diameter to outer diameter, ratio of adventitia diameter to outer diameter, and ratio of wall thickness to outer diameter of vessels. Results: Obligatory swimming stress and noise stress each significantly increased the ratio of media diameter to the outer diameter of vessels (P<0.001) and decreased the ratio of vessels lumen diameter to the outer diameter (P<0.05). Swimming stress and noise stress induced increases in the ratio of wall thickness to the outer diameter of vessels (P<0.01, P<0.05, respectively). In addition, swimming stress significantly increased the ratio of adventitia diameter to the outer diameter of vessels (P<0.05). Conclusion: These findings suggest that chronic stress can induce coronary vessel remodelling which results in atherosclerosis and cardiovascular diseases

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Background: Obtaining cells from the patient, expanding cell population on a scaffold, and, eventually, grafting the tissue to the patient is one of the tissue engineering techniques to create replacement tissue structures. Blastema tissue is one of the cellular sources in this regard. This study investigated the use of human gum tissue to prepare a scaffold and the interaction between the three-dimensional tissue scaffold and blastema tissue. Materials and Methods: In this experimental study, human gingiva was prepared and through snap freezing method and the use of sodium dodecyl sulfate (SDS) and Triton X-100, went through cell bleaching. Then the provided scaffoldings were placed in 2-day-old blastema rings and stored in culture media for 25 days. Sampling of the blastema and scaffolding tissues was done once every five days. Results: The results confirmed the removal of the cells from the prepared scaffolds. Also, histological studies in the fifth and tenth days indicated cell penetration into the blastema scaffolds. In the fifteenth day, in addition to penetration, blastema cells division and differentiation as well as epidermis genesis were observed. In the twentieth and twenty-fifth days, infiltration, cell division, and differentiation processes continued. Conclusion: The findings of this study indicated the possibility of creating a natural scaffold of human gingiva through this method. This scaffold can have an inductive effect on cell behaviors such as such as migration, adhesion, division, and probable differentiation. However, further studies for demonstrating the identity of the cells and other properties of such a scaffold as well as the possibility of using it in gingiva tissue engineering are recommended.

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Introduction: Dermatoglyphic is a science that study the lines in the skin of the palms and fingertips properly. In some studies, the relationship between dermatoglyphic patterns with some diseases has been proven Arthritis Rheumatoid is a chronic inflammatory disease with autoimmune pathogenesis. The aim of this study was to investigate the qualitative and quantitative characteristics of dermatoglyphics in people with rheumatoid arthritis compared to the control group.
Methods: This case-control study was conducted on 50 patients with rheumatoid arthritis and 50 people in the control group living in Mashhad. The fingerprint was recorded by the scanner.  The distribution of the frequency of fingerprint patterns, including Arch, Loop and Whorl, along with the counting of fingerprint lines in both groups was investigated. Finally, the obtained data were analyzed using ANOVA and X² tests.
Results: According to the results, the maximum frequency of dermatoglyphic patterns in both hands was related to the ulnar loop type. After that, in the patient group, simple Whorl patterns and double Whorl patterns and in the healthy group, double Whorl patterns and simple Whorl patterns were the most frequent. Between the average finger ridge count in the right hand of healthy people with the right hand of patient’s people and the left hand of healthy people with the left hand of patient’s people showed a significant difference in the error level of 0.05.
Conclusions: It seems that this difference can be used as a biological diagnostic marker to screen people prone to rheumatoid arthritis. This information in prognosis of psychological, medical and therapeutic plans, issues related to anthropology and social sciences can also be useful.