Objective: Nanosilver has numerous applications in medicine due to its potent antibacterial activity. However, data regarding the bio-safety of its effective concentrations is scarce. This study aims to assess the toxicity of silver nanoparticles on human gingival epithelial cells under in-vitro conditions.   Methods: This in vitro study evaluated the toxic effects of filtered and unfiltered ...

Microvascular rarefaction, or loss of microvascular density, is increasingly implicated in the progression from acute ischemic kidney injury to chronic kidney disease. Microvascular dropout results in chronic tissue hypoxia, interstitial inflammation, and fibrosis. There is currently no therapeutic intervention for microvascular rarefaction. We hypothesize that capillary dropout begins with isc...

introduction: this study was designed to investigate the characters of the human endometrial epithelial cells when cultured on either plastic or ecm (extracellular matrix) gel surface and to study ultrastructural features of cultured cells in comparison to endometrial tissue. material and methods: human endometrial tissue was obtained from patients who had undergone hysterectomy for uterine myo...

Introduction: Oral Lichen Planus (OLP) is one of the most common mucocutaneous lesion, and its etiologic factors have not been elucidated yet. OLP has two different clinical forms including reticular and erosive. Mast cells function in non-specific immunology is an etiologic factor involved in the formation of lichen planus. This study aimed at determining the pattern of mast cells presence in ...

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) ...

Background: The aim of the present study was to find the effects of cadmium (Cd) on Japanese quail on the role of an animal model in order to understand the toxicity of Cd in creatures presented, within the environment. Methods: One hundred 30-day-old male Japanese quails were equally divided into the control group and Cd group. The control group received no Cd while the Cd group was given f...

Isolated frog skin epithelia undergo marked, but reversible swelling when the external skin surface is bathed with conventional NaCl Ringer's and the internal surface with KCl Ringer's solutions. In 2 hours, epithelial thickness increased by over twofold. When NaCl Ringer's was replaced on both sides of the skin, volume returned to control levels in less than 1 hour. When sulfate, rather than c...

Fluid secretion by the ciliary body plays a critical and irreplaceable function in vertebrate vision by providing nutritive support to the cornea and lens, and by maintaining intraocular pressure. Here, we identify TRPV4 (transient receptor potential vanilloid isoform 4) channels as key osmosensors in nonpigmented epithelial (NPE) cells of the mouse ciliary body. Hypotonic swelling and the sele...