the present study aimed to evaluate the effects of ramadan fasting on the level of sex hormones in girls between 9-13 years before age at menarche.this study was conducted on a sample of 58 subjects (age range: 9-13 years), who were divided intotwo groups of fasting (n=31) and non-fasting (n=27). the levels of follicle-stimulating hormone(fsh), luteinizing hormone (lh), progesterone and estradi...

conclusion: in this study group, tnf-α -238 polymorphism was shown to be different in preeclamptic and non-preeclamptic pregnant women. the aa genotype and the a allele may carry an increased risk for developing of preeclampsia. results: there were significant differences between the two groups in tnf-α genotype at position -238 (p < 0.001). in the preeclamptic group, the frequency of the aa ge...

an important concern in rock mechanics is non-homogeneity as joints or fault. this noticeable feature of failures in rock is appearance of slip surfaces or shear bands, the characteristics of that are associated with deformation being concentrated in a narrow zones and the surrounding material remaining intact. adopting the joints as fractures, fractures are well known for their effects on the ...

premixed combustion is widely used for reducing pollutant emission from combustion chambers. however, these systems may be sensitive to complex phenomena such as flashback. in the present study flame, flashback and structure of premixed laminar flames are investigated theoretically. the mathematical model includes the axi-symmetric continuity, navier stocks, energy, and species equations. combu...

one of the most significant issues in pharmaceutical industries, prior to commercializationof a pharmaceutical preparation is the “preformulation” stage. however, far too attention hasbeen paid to verification of the software assisted statistical designs in preformulation studies.the main aim of this study was to report a step by step preformulation approach for a semisolidpreparation based on ...

objective: the purpose of this study was to evaluate the dental movements of the labial segment and the canines during leveling and alignment using pre-adjusted appliances and light forces with the mbt technique. the effect of lacebacks on the horizontal movement of the first molars was also assessed. materials and methods: fourteen patients with a mean age of 14.08 years were selected for this...

abstract background: abnormal uterine bleeding (aub) is one of the most common complains in women of any age seeking gynecologic health care and needs early diagnosis and proper management due to its impacts on the quality of life. this study was conducted to investigate the cut-off value of endometrial thickness (et) by trans-vaginal ultra-sonography (tvus) and evaluate its accuracy in the dia...

conclusions hbv in children due to vaccination failure was resulted from vertical transmission. hbv pre-s/s gene mutations were prevalent and could occur before or after vaccination. therefore, simply analyzing mutation frequency of hbv gene was not of value. to advance blocking hbv vertical transmission, future studies should focus on specific mutation sites, potentially associated with vaccin...

1 Department of Biochemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal 2 Institute for Molecular and Cell Biology (IBMC), University of Porto, 4150-180 Porto, Portugal 3 Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal 4 Center for Research in Health Technologies and Information Systems (CINTESIS), Faculty of Medicin...