previous studies on etiology of squamous cell carcinoma (scc) of the tongue have reported results with respect to long term exposure to cigarette smoking and alcohol abuse. the aim of this study was to investigate risk factors for scc of the tongue in a set of patients with minimum exposure to cigarette smoking and alcohol. sixty four cases with diagnosis of oral tongue scc were reviewed in thi...

background: breastfeeding failures and oral feeding problems in preterm infants result in long-term health complications. in this study, therefore, we aimed to evaluate the effect of oral stimulation along with non-nutritive sucking (nns) on independent oral feeding initiation and weight gain in preterm infants. methods: this prospective randomized clinical trial was carried out at aliasghar ho...

conclusions oral health behavior-related factors can influence patients’ periodontal status and oral hygiene levels. results in total, 50.8% of participants had cpi 2, and the average of sohi was 1.97 ± 0.7 (fair to poor). among lifestyle variables, smoking and physical activity each had a significant relationship with periodontal health (p = 0.0001 and p = 0.001, respectively). there were also...

this study focused on investigating the impact of keeping oral dialogue journals on efl learners’ oral fluency. sixty participants were ed out of 80 undergraduate freshmen who were studying english translation at sanandaj islamic azad university and pre-intermediate students at passargadeh jam language school based on their scores on a piloted proficiency test. they were then randomly divided i...

the anthocyanins of the fruit skin of iranian forest pear (sange khouj) were separated, identified and quantified using high-performance liquid chromatography/diode array detection (hplc/dad) and hplc/electrospray ionization /mass spectrometry (hplc/esi /ms). the individual anthocyanins were identified by comparing their mass spectral data and retention times with those of standards and publish...

glaucoma is the leading cause of preventable blindness worldwide. despite tremendous advances in medical and surgical management of glaucoma in the recent years, the prevalence of glaucoma related blindness is anticipated to increase in the future decades because of the aging population. stem cells have the potential to change the glaucoma management in several ways. there are several areas of ...

there is great interest worldwide in discovering and developing a permanent source of tissues which would be capable of generating any cell type and which would avoid the problem of transplant rejection. stem cells are cells that can specialize into the many different cells found in the human body. the ethical objections concerning stem cells have focused primarily on their source. human embryo...

regenerative capacity of mammals is limited and can rarely regenerate a specific organ or tissue fully. due to these limitations, regenerative medicine seeks efficient and safe cell sources for regeneration of damaged tissues and organs or treatment for incurable diseases. human embryonic stem cells (hescs) hold two important properties called self renewal and pluripotency. however, the use of ...

tissue engineering is based on three main factors including scaffolds, cells and growth factors. natural scaffolds derived from decellularized tissues and organs have been successfully used in tissue engineering. decellularization studies have shown that natural scaffolds which maintaine their main structure and properties could be a suitable tool for studying cellular behaviors and preparation...

introduction: mesenchymal stem cells (mscs) hold great promise in the field of regenerative medicine.although originally isolated from bone marrow, mscs have since been obtained from a variety of adult and neonatal tissues including the adipose tissue. stemness and multipotential features of mesenchymal stem cells (msc) has been highlighted in many studies but there are many dark aspects in exc...