Showing 13 results for Hamta
Fathallah Mohaghegh, Ahmad Hamta, Mohammad Ali Shariatzade,
Volume 11, Issue 2 (6-2008)
Abstract
Introduction: Based on statistical and epidemiological studies, cancer is the third most common cause of death after heart diseases and accidents, therefore planning to control cancer is essential for public health. Cancer registration is an important part of cancer control, and the collected data could be useful in etiological studies, and health programming to prevent and treat the disease. In this study cancer incidence and cancer registration in Markazi province investigated. Materials and Methods: In this descriptive study, data related to cancer were collected from the health center of Markazi province, from 2001 to 2006. Then the prevalence and incidence of different kind of cancer were determined. Results: Results showed that the top ten cancers among women were: 1-Breast 2-Skin 3-Stomach 4-Colorectal 5-Lung 6-Uterus 7-Bladder 8-Lymphoma 9-Thyroid 10-Esophagus, and the ten most prevalent cancers among men were: 1-Skin 2-Bladder 3-Stomach 4-Lung 5-Prostate 6-Colon and Colorectal 7-Esophagus 8-Lymphoma 9-Testese 10-Gall bladder. Conclusion: In this investigation we also compared cancer incidence and distribution in Markazi province with national rates and our results showed that in some years, cancer statistics is different from national statistics which it may be due to different environmental and epidemiological factors.
Mohammad Ali Shariat Zadeh, Ahmad Hamta, Malek Solimani, Zahra Rasoli,
Volume 12, Issue 2 (9-2009)
Abstract
Background: Skin cancer is one of the most important cancers in the world. This cancer is more common in men than women. We survey chromosomal changes in DMBA-induced skin cancer in SD rat strains. Methods and Materials: In this fundamental study, 20 SD rat strains were randomly divided into case and contal group. DMBA (2.5 mg) was injected to SD rat strains subcutaneously therefore skin cancer model for studies was created. Tumors became subjects for cell culture and metaphase chromosomal were prepared. Finally G-banding were stained. We have also transmitted genomic information from rat to human using suitable databases and Gene were determined. Results: Data showed numerical and frequent structural changes in different number of chromosomes. For example gain in chromosomes number 1, 15, 17 and loss in 1, 7, 15, and also structural changes like deletion was seen in chromosomes number 1, 4, 8, 10, 15, 17, and addition in chromosome number 15. Discussion: It is predicted that CST6، PRKCDBP، PTCH1، DKK3، ، BRMS1، CDKN1C، CD81، DMP1، CDKN2B ، EEF1A1 ، HRAS، CASP2، KLF4 probably cause skin cancer.
Seyed Mohhamad Ali Shariat Zadeh, Ahmad Hamta, Ali Akbar Malekirad, Shariat Zadeh,
Volume 13, Issue 5 (Supplement of Quran and Medicine 2011)
Abstract
Sleep is one of the basic needs of human and any disorder in its natural flow in addition to creating psychological problems can reduce the individual performance. There are descriptions and references about sleep and its features in Quran. In Naba Surش sleep has been referred to as a weakness that indicates a disease state. However, the conditions for the occurrence of sleep can be inferred from Kahf Sura, verse 11, which states: “a major quality of sleep is that one cannot estimate its duration”. In several other verses, sleep is said to be similar to temporary death. Substances such as endorphins, cortisol, and encephalin cause euphoria and have direct impacts on different parts of the body including skeletal muscles that lead to muscle comfort during the day. The amount of secretion of these materials into the body in the morning hours significantly increases. Therefore, waking up early in the morning can bring about euphoria and can have positive impacts which last till the end of the day. According to the findings released by the International Agency for Research on Cancer World Health Organization, men and women who work night shifts are at a greater risk of developing breast cancer and prostate cancer, respectively. Night sleep is a divine blessing that God has endowed people and God in verse 23 of Rome Sura refers to sleep as “one of the signs revealed to people” and asks people to search and investigate about it so as to realize to what extent night sleep can contribute to human perfection and success
Moussa Ahmadian, S.mohhamah Ali Shariatzadeh, Ahmad Hamta,
Volume 13, Issue 5 (Supplement of Quran and Medicine 2011)
Abstract
Dermatoglyphic patterns are formed during the first and the second fetal development trimesters and they remain unchanged afterwards. At the end of the fourth month of fetal development, fingertips are formed along with brain and other derived ectodermia developments. In the 19th century, the mystery of human fingertips was discovered, and it was realized that fingertips consist of tiny network lines in the epiderms of the skin, and are exclusive to every individual, even to twins. In this study, through library research, by reviewing quantitative and qualitative dermatoglyphic patterns, the miracle of fingertips was considered based on Quran and Islamic commandments. Much research has been done comparing individual dermatoglyphic patterns of hands among various races, and the quantitative and qualitative relationship between dermatoglyphic patterns and diseases such as schizophrenia, nervous disorders, Down syndrome, diabetes I, Alzheimer, multiple sclerosis, congenital spinal abnormalities, and psoriasis disease has been shown. Accordingly, finger prints are used for identifying individuals, detecting criminals, and studying disease of genetic background. They can also be used as clues in determining the etiology of diseases. Fingertip sign is unique for every individual. Quran, in response to those who deny the resurrection after decomposition of the body and bones (Saffat, 37: 16), declares that Allah almighty, is not only capable of recreating them, but also is able to make human fingertips again (75: 3-4). The study shows the importance of human’s fingertips as the miracle of human creation, and reveals why Quran emphasizes on them as one indication of resurrection.
Sayed Mohamad Ali Shariatzadeh, Malek Soleimanimehranjani, Ahmad Hamta, Maryam Ghandizadehdezfuli,
Volume 15, Issue 2 (June-July 2012)
Abstract
Background: Sodium arsenite has adverse effects on the reproductive system and vitamin E is a strong antioxidant and reproductive factor in the reproductive system. The aim of this study was to investigate the effect of vitamin E on the structure and the number of ovarian follicles during its development in rats treated with sodium arsenite. Materials and Methods: Pregnant Wister rats (n=4) were divided into 4 equal groups, including control, vitamin E (100mg/kg/day), sodium arsenite (8mg/kg/day), and sodium arsenite+vitamin E. Oral treatment of the pregnant rats started from the 7th day of pregnancy till the end of the weaning and continued till the age of 120 days. After the treatment period, the right ovary was removed and fixed, and then the mean number of ovarian follicles and atretic follicles, mean thickness of zona pellucida, and volume of oocytes and its nuclei in different types of follicle were determined. Data were analysed using one-way ANOVA and the mean difference was considered significant at P<0.05. Results: In the vitamin E+sodium arsenite group, significant increase(P<0.05) in the total number of follicles, mean number of primordial, primary, secondary, antral, and graafian follicles, significant reduction (P<0.05) in atretic follicles, and significant increase(P<0.05) in the thickness of zona pllucida in secondary and antral follicles as well as oocyte volume in parimordial and primary follicles and its nuclei in primary, secondary, antral, and graffian follicles were observed in comparison with the other groups. Vitamin E in the sodium arsenite+vitamin E group increased the number of different types of follicles and the thickness of the zona pllucida (P<0.05), decreased the number of atretic follicles, and increased the volume of oocyte and its nuclei to the level of the control group. Conclusion: Vitamin E can be administered as a supplement to compensate for the adverse effects of sodium arsenite.
Somayyeh Saadatmand, Ahmad Hamta, Abdorrahim Sadeghi, Fathollah Mohaghghegh,
Volume 17, Issue 12 (3-2015)
Abstract
Background: Estrogen hormone regulates cell proliferation in breast tissue physiologically. Evidences show that changes in estrogen signaling pathways, including the receptor alpha (ER&alpha), happen during breast cancer progression. ER&alpha is expressed in most breast tumors and its association with the development of low-grade tumors has been demonstrated. Single nucleotide polymorphisms (SNPs) in genes may differ in susceptibility to cancer and result in different respond to treatment in different populations. The present study aimed investigated the association between single nucleotide polymorphisms (rs2234693: C/T) in gene ESR&alpha in patients with breast cancer.
Materials and Methods: In this case-control study 150 women with breast cancer and 142 healthy women without a family history of breast cancer were enrolled. DNA was extracted from blood samples. After primer design, technique of PCR-RFLP was used and samples were genotyped by acrylamide gel electrophoresis. Statistical analyzes were performed using SPSS version 20 and chi square test and Final findings were specified.
Results: TT and CT genotypes for ra2234693: C/T site compared with the CC had 5.5 and 1.5-fold increased risk respectively. Statistically significant differences were found between cases and controls for fibrocystic disease and age at menarche.
Conclusion: We not found an association between C/T polymorphism and breast cancer. But CC and TT genotypes of this polymorphism in estrogen receptor alpha gene related with breast cancer that are consistent with the findings of some other researchers.
Ahmad Hamta, Maryam Yousefi, Masood Fazeli Mosleh Abadi, Afsaneh Talaei, Abdorrahim Sadeghi,
Volume 18, Issue 9 (12-2015)
Abstract
Background: Thyroid nodules are common. 4-7% of adults have a palpable nodule and up to 50-70% of nodules are detected in high-resolution sonography. Thyroid nodules in women are 4 times greater than men and the rate of thyroid cancer in women is 3:1 compared to men, and is the sixth most common cancer in women. Epidemiological findings and experimental evidences show that sex hormones, especially estrogen, may have effect on this gland and its neoplasm. The aim of this study was to investigate the association between rs1256049 polymorphism in the estrogen receptor beta gene with thyroid nodular disease.
Materials and Methods: In this case-control study, 146 Patients with nodular thyroid and 151 health individuals were referred to Amiralmomenin hospital of Arak were recruited in study. Diagnosis is based on by ultrasonography and was confirmed by an endocrinologist. Genomic DNA was extracted from EDTA treated whole blood .The genotypes were determined using tetra-amplification refractory mutation system-polymerase chain reaction (T-ARMS-PCR) and analyzed by statistical methods.
Results: The frequency of CC, TC and TT genotypes in case group 136(93.2%), 10(6.8%) and 0(0%) and in the control group 139(92.1%), 12(7.9%) and 0(0%) were obtained respectively. No statistically significant association (p=0.72) was observed between nodular thyroid disease and rs1256049 polymorphism.
Conclusion: Our findings showed no significant association between rs1256049 polymorphism and nodular thyroid disease. For best deduction, it is recommended that this study be done in other populations.
Ahmad Hamta, Rezvan Ghadbeigi,
Volume 19, Issue 3 (6-2016)
Abstract
Background: ANKK1 (ankyrin repeat and kinase domain containing 1) gene is a member of the serine/threonine kinase family. This family involved in signal transduction pathways. This gene contains Taq1A (rs1800497) single nucleotide polymorphism. The A1 allele carriers of TaqIA polymorphism have shown reduced DRD2 (Dopamine Receptor D2) receptors. This decrease predisposes individuals to seek for addictive substances to compensate this deficiency in dopaminergic system. The present study investigated TaqIA (rs1800497) polymorphism in heroin and methamphetamine addiction.
Materials and Methods: In this case-control study, 91 male methadone-maintained heroin and methamphetamine addicts and 100 male healthy controls were studied. Genomic DNA extraction was carried out from peripheral blood through salting-out method and individuals were genotyped for TaqIA polymorphism by RFLP-PCR technique and TaqI enzyme was used for RFLP.
Results: This survey revealed the significantly higher frequency of the A1 allele of TaqIA polymorphism in patients than control individuals (p<0.001). The frequency of A1 allele in patient and control individuals was %51 and %22.5, respectively. The A1A1 genotype was detected in 25% of patients and 7% of controls (p<0.001, OR=9.7, 95% CI=3.64-25.85).
Conclusion: The results of this study revealed that the A1 allele of TaqIA polymorphism is significantly associated with heroin and methamphetamine addiction.
Hamta Ahmad, Ansari Jamshid, Bayati Zahra,
Volume 19, Issue 7 (10-2016)
Abstract
Background: Breast cancer is both the prevailing malignancy and the most common cause of cancer death among women. Many factors may play a role in the susceptibility to the breast cancer and Oxygen Free Radicals may be one of these. There are various known antioxidant systems against oxidative stress, including ParaoxonaseI. The aim of this study was to investigate the association between rs854560 polymorphism in the PON1 gene in patients with breast cancer.
Materials and Methods: We performed genotyping analysis using polymerase chain reactionrestriction fragment length polymorphism (PCR-RFLP) assay in a case–control study of 83 confirmed breast cancer patients and 100 cancer-free controls in Markazi Province.
Results: In our study of the PON1 gene L55M polymorphism, the LL genotype was found in 2 (2.40%) patients, whereas the LM genotype was found in 69 (83.13%) patients. The MM genotype was present in 12 (14.45%) patients. In the control group, LL, LM and MM genotypes were found in 4 (4%), 81 (81%), and 15 (15%) subjects, respectively. There was no statistically significant difference between patient and control groups in terms of the PON1 gene L55M polymorphism (p= 0.825). Allele distributions were different but this difference did not reach statistical significance (p= 0.920).
Conclusion: We found no association between M55L polymorphism and breast cancer.
Ahmad Hamta, Mahsa Mohammadi, Jamshid Ansari,
Volume 19, Issue 11 (2-2017)
Abstract
Background: Biological and epidemiological data indicate that the levels of vitamin D maybe affect the breast cancer risk. Vitamin D plays an important role in cell proliferation, apoptosis and tumor growth suppression. Vitamin D receptor is a critical mediator for the cellular reactions of vitamin D. Some of the epidemiological studies, reviewed the relationship between VDR gene polymorphism ApaI and breast cancer, but the controversial findings have been achieved.
Materials and Methods: In this study, a population-based case-control study including 140 patients and 160 healthy individuals of women in Markazi Province were evaluated using PCR-RFLP approach. Genomic DNA was extracted from blood samples using the salting-out procedure. Polymorphism of interest was determined by PCR-RFLP method using ApaI enzyme and statistical analysis was performed by SPSS software.
Results: Based on the results of this study, distribution of AA genotype in cancer and control groups was, 38.6 and 26.87, for AC genotype 55.00 and 66.87, and finally for CC genotype 6.43 and 6.26 respectively. The results of this study showed no association between ApaI polymorphism of the VDR gene and breast cancer(OR=0.903,CI=95%, 0.29-2.95.)
Conclusion: In this study, we found no association between ApaI polymorphism and breast cancer, which are consistent with the findings of some other researchs. It is necessary to examine a larger population to achieve more definitive results.
Ahmad Hamta, Milad Pezeshki, Jamshid Ansari,
Volume 20, Issue 12 (3-2018)
Abstract
Abstract
Background: Biological and epidemiological data suggest that damage induced by endogenous and exogenous factors affects the integrity and stability of DNA and associated with susceptibility to breast cancer. The XRCC3 protein participates in DNA double-strand breaks and recombination repair. The aim of the present study was to evaluate associations between the risk of breast cancer and Thr241Met polymorphism in the XRCC3 gene.
Materials and Methods: In this study, the effects of Thr241Met polymorphism of the XRCC3 gene and the risk of breast cancer in a population-based case-control study inclusive 80 patients and 80 healthy individuals of women in Markazi province were evaluated. Genomic DNA was extracted from blood samples using the kit procedure. The genotypes of samples were determined by PCR-RFLP technique. Statistical analysis was done using SPSS software (estimation of χ2 and p-value) and the final results were determined.
Results: Statistically significant difference was observed between the two groups of patients and controls for three genotypes of the site rs861539 (p= 0.000). Genotype CT (p= 0.000, OR=2.352, CI= 95%; 2.431 - 39.948) and TT (p = 0.003, OR= 2.352, CI=95%; 0.611 - 9.049) significant associations were showed with risk of breast cancer. Instead, the genotype CC (p= 0.000) showed a protective role against susceptibility to breast cancer.
Conclusion: This study identified that there is significant association between Thr241Met polymorphisms of the XRCC3 and the risk of susceptibility to breast cancer, which is in accordance to some of researchers' studies.
Ahmad Hamta, Sahar Adl,
Volume 24, Issue 1 (April & May 2021)
Abstract
Background and Aim: Breast cancer is the most common cancer type and the leading cause of cancer-induced deaths in women, worldwide. The Fibroblast Growth Factor Receptor 2 (FGFR2) is a tyrosine kinase receptor that plays an essential role in the growth, invasion, movement, and angiogenesis of tumor cells. Several single nucleotide polymorphisms have been found in the intron 2 of the FGFR2 gene, i.e., associated with a high risk of breast cancer. Genetic variation in this receptor is a new risk factor for breast cancer. The current study aimed to evaluate the association of single-nucleotide polymorphism rs2981582C/T in women with breast cancer.
Methods & Materials: In total, 80 women with breast cancer and 80 healthy women (controls) were selected from Markazi Province, Iran to participate in this research. Polymorphism rs2981582 was analyzed to investigate its association with breast cancer. DNA extraction from blood samples was performed using a kit. The presence of these single-nucleotide polymorphisms was determined by Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR - RFLP). Statistical analyses were performed by SPSS using Chi-squared test at P≤0.05.
Ethical Considerations: This study was approved by the Ethics Committee of the Arak University (Code: IR.ARAKMU.REC.1395.28).
Results: Significant differences were observed in the frequency of rs2981582 polymorphism in the FGFR2 gene between the control and patient groups (P=0.000). In the patient group, the TT genotype was significantly associated with the risk of breast cancer (P=0.001; OR=3.566). On the other hand, allele C indicated a protective role against the disease (P=0.000).
Conclusion: The obtained data revealed a significant relationship between rs2981582 C/T polymorphism and the risk of breast cancer; thus, this single-nucleotide polymorphism could be used as a biomarker to predict breast cancer.
Seyedeh Zahra Shifteh, Doctor Ahmad Hamta,
Volume 26, Issue 1 (April & May 2023)
Abstract
Introduction: Breast cancer is a highly heterogeneous disease. The antigen molecule of four cytotoxic T-lymphocytes is involved in inhibition of T cell response and immune response regulation. Single nucleotide polymorphisms in the CTLA4 gene can affect the expression of the aforementioned molecule. The aim of this study was to investigate the polymorphisms of rs4553808 and rs733618 of CTLA4 gene with the risk of breast cancer.
Methods: In this study to investigation polymorphisms, the DNA of 80 patients with breast cancer and 80 healthy individuals in central province of ARAK were extracted from peripheral blood. Then, PCR-RFLP technique was used. The results were analyzed using SPSS software and SNP Analyzer. This study was approved by the Ethics Committee of the Arak University (Code: Ir.arakmu.rec.1396.25).
Results: Statistical analysis rs4553808 polymorphism showed no significant increase in the risk of patients with GG genotype compared with the control group (OR = 2/013, CI = 95% 1/721-2/353). Also, heterozygotes AG genotype analysis did not show any relationship between the genetic diversity and breast cancer (OR = 1/204, CI = 95% 0/604-2/402). The combination of AG + GG genotypes did not show any significant correlations (OR = 1/130, CI = 95% 0/569-2/242). Statistical analysis for rs733618 polymorphism showed increase in the risk of breast cancer. The results indicate that the TC (OR = 2/992, CI = 95% 1/280-1/998) showed a significant relationship between the genetic diversity and breast cancer. The analysis of the combined CC and TC genotypes was associated with increased risk for breast cancer compared to TT genotypes (OR = 0/334, CI = 95%; 0.143-0.782, P = 0.009). Considering that the distribution of CC and TC genotypes was significant between the two groups of control and the patient, so the frequency of TT genotype with the same amount of P = 0.001 was significant between the two groups of control and the patient.
Conclusions: There was a significant relationship between the genotypes rs733618 polymorphism and breast cancer. However, there was no significant relationship between rs4553808 polymorphism and breast cancer risk.
