Background: Resveratrol is a natural polyphe- nolic compound, synthesized by plants as a phytoalexin and protects against ultraviolet radiation and fungal infection. Nitric oxide is formed from L-arginine through nitric oxide synthases (NOS), a group of enzymes that structurally resemble cytochrome P-450 reductase. In females, circulating NO is increased during follicle development and decrease...

Cytogenetic analysis of mixed lymphocyte and epithelial thymoma in a nonmyasthenic female patient revealed deletion of part of the short arm of chromosome 6. To our knowledge, this cytogenetic abnormality in a benign thymoma has not been previously described in the literature, which is reviewed.

Background: Endometriosis is the presence of a functional endometrial tissue outside the uterine cavity and defines as cancer like model. Noscapine is a safe cough suppressant which has been introduced as cancer suppressor. The aim of this study was to investigate the in vitro effect of noscapine on human endometriotic epithelial cells. Materials and Methods: Human endometriotic biopsies (n=7) ...

The protective effects of Rheum tanguticum polysaccharide 1 (RTP1), which is extracted from the Chinese traditional medicine Rheum tanguticum, on radiation-induced intestinal mucosal injury was investigated. Rat intestinal crypt epithelial cells (IEC-6 cells) and Sprague-Dawley rats were each divided into control, irradiated and RTP1-pretreated irradiated groups. After irradiation, cell surviva...

Trisomy 14 mosaicism is a rare chromosomal abnormality with distinct and recognizable clinical features. We report a patient with presumed retinal dystrophy having diffuse retinal pigment epithelial abnormalities, which has not been previously reported in association with trisomy 14. This case expands the clinical spectrum of this rare entity.

Introduction: Amniotic membrane, the innermost layer of extra-embryonic tissue, contains mesenchymal and epithelial stem cells. The amniotic mesenchymal cells have the capability of inhibition of growth of cancer cells. In this research, the effects of amniotic epithelial cells on the viability of cancer cells and the role of apoptosis in this procedure were evaluated. Methods: Amniotic mem...

Background: Formaldehyde is a chemical that used in fixed tissues and bodies. Formaldehyde during dissection of cadaver, evaporate and be released. Studies have shown that the gas increase endogenous opioids, nitric oxide and cytokines in plasma. These impacts can affect on gonadotropin hormones. The aim of this study was to investigate possible changes in gonadotropin and epithelial cells of t...

stem cells located at the limbus ,  are the ultimate source for regeneration of the corneal epithelium in the normal and traumatized states.  when limbal stem cells are dysfunctional or deficient, limbal stem cell deficiency (lscd) develops. its surgical management depends on laterality and severity of corneal-limbal involvement. conventional methods of stem cell transplantation are conjunctiva...

background  to report normal variations of the limbal structures using in vivo laser scanning confocal microscopy. methods: this was a retrospective study of fourteen eyes from 11 healthy individuals. confocal imaging of cornea and limbus was performed using heidelberg retina tomograph iii rostock corneal module. results: the typical structure of the palisades of vogt (pov) was detected in 57% ...

background and aim: oral mucosal lesions have various prevalence rates among different populations. few studies have evaluated the frequency of oral mucosal lesions in iranian population. this study aimed to determine the frequency of oral mucosal lesions and the related factors.                        materials and methods: this descriptive study was conducted based on the data in the archives...