The endogenous peptide kyotorphin (KTP) has been extensively studied since it was discovered in 1979. The dipeptide is distributed unevenly over the brain but the majority is concentrated in the cerebral cortex. The putative KTP receptor has not been identified yet. As many other neuropeptides, KTP clearance is mediated by extracellular peptidases and peptide transporters. From the wide spectru...

OBJECTIVE The KTP laser has become commonplace in transoral head and neck surgery. The interactions of this laser with commonly used supplies in transoral surgery have not been formally examined. This study evaluates the effects of the KTP laser on surgical supplies. STUDY DESIGN Experimental study. SETTING The study was conducted in an empty operating room at a university-affiliated medica...

OBJECTIVES The aim of this study was to compare the effectiveness of the Er,Cr:YSGG (Waterlase) laser with KTP and CO2 lasers in laser assisted uvulopalatoplasty (LAUP) for treatment of snoring. STUDY DESIGN This is a prospective study of 63 patients who were treated for snoring by LAUP either with Er,Cr:YSGG (n = 21) or with KTP (n = 21) or CO2 lasers (n = 21). Histologic analysis was perfor...

IMPORTANCE Vocal polyps are common exophytic laryngeal lesions that usually necessitate microscopic laryngeal surgery under general anesthesia. Office-based indirect laryngoscopic procedures provide an alternative management option and can be performed comfortably under flexible endoscopic guidance. Combining angiolytic potassium titanyl phosphate (KTP) laser treatment and flexible endoscopic p...

OBJECTIVE The purpose of the current study was to evaluate the differences in hearing results and complications between the conventional technique (CT) and potassium titanyl phosphate laser (KTP) laser-assisted stapes surgery that does not involve the manipulation of the foot plate. METHODS Ninety-eight ears with conductive or mixed hearing loss due to otosclerosis were operated on by using t...

Background: Irritative symptoms including prolonged urgency and dysuria after GreenLight laser photoselective vaporization (PVP) of benign prostatic hyperplasia (BPH) are common complication. We aimed to compare the incidence of postoperative irritative symptoms of GreenLight XPS (GL-XPS) 180W laser system with GreenLight KTP (GL-KTP) 80W laser system for the treatment of BPH and evaluate the r...

Background: Irritative symptoms including prolonged urgency and dysuria after GreenLight laser photoselective vaporization (PVP) of benign prostatic hyperplasia (BPH) are common complication. We aimed to compare the incidence of postoperative irritative symptoms of GreenLight XPS (GL-XPS) 180W laser system with GreenLight KTP (GL-KTP) 80W laser system for the treatment of BPH and evaluate the r...

BACKGROUND Bleaching of traumatized discolored teeth is considered an important issue in esthetic dentistry. Various methods have been introduced for bleaching, some of which may have adverse effects on soft or hard tissues of the tooth. OBJECTIVES The objective of the study was to evaluate the effects of KTP laser bleaching on enamel of traumatized teeth. MATERIALS AND METHODS A square of ...