BACKGROUND We recently developed a novel, noninvasive method for sampling nonvolatile material from the distal airways. The method is based on the collection of endogenous particles in exhaled air (PEx). The aim of this study was to characterize the protein composition of PEx and to verify that the origin of PEx is respiratory tract lining fluid (RTLF). METHOD Healthy individuals exhaled into...

AIM To evaluate the effect of torsional mode phacoemulsification on central corneal thickness, corneal endothelial cell density, and morphology in eyes with/without pseudoexfoliation (PEX) syndrome. METHODS Fourty-two consecutive patients with and 42 patients without PEX as a control group scheduled for cataract surgery was studied. Phacoemulsification, using OZiL IP system, was performed wit...

OBJECTIVE To investigate the prevalence of "masked" pseudoexfoliation (PEX) syndrome in eyes with circular posterior synechiae receiving antiglaucomatous therapy with miotics. DESIGN Cross-sectional prospective study. METHODS Twenty-eight eyes of 27 consecutive patients with circular posterior synechiae and a history of miotic drug use without previous intraocular surgery, inflammation, or ...

PURPOSE To present a prospective, nonrandomized study of intraocular pressure (IOP) after clear corneal phacoemulsification in eyes with pseudoexfoliation (PEX) syndrome. METHODS A PEX group of 39 consecutive open angle, nonglaucomatous eyes with cataract in PEX syndrome, and a control group of 40 consecutive open angle, nonglaucomatous eyes with cataract, were operated on by the same surgeon...

Pectus excavatum (PEx) is one of the most common congenital chest wall deformities. Depending on the severity, presentation of PEx may range from minor cosmetic issues to disabling cardiopulmonary symptoms. The effect of PEx on adult patients has not been extensively studied. Symptoms may not occur until the patient ages, and they may worsen over the years. More recent publications have implied...

Background Particles in exhaled air (PEx) are derived from the small airways and are formed during airway closure and re-opening. They mainly contain surfactant; both phospholipid and protein composition in PEx resemble that of BAL. Measurements of surfactant protein A in PEx from 100 l exhaled air were shown to be highly reproducible, making the PEx a promising tool in the monitoring of asthma...

Aim of the study is to determine connection between pseudoexfoliation (PEX) syndrome and symptoms and signs of ocular surface disease. Tear film break-up time test, Schirmer II test and assessment of lid parallel conjunctival folds were performed in 40 PEX syndrome patients and 40 controls. All data was statistically analyzed. Results show statistically significant difference in every component...

OBJECTIVE: Pseudoexfoliation syndrome (PEX) leads to some problems in the eye surgery specially cataract surgery. As the prevalence of eye problems is high in diabetic patients, we meant to assess the prevalence of PEX in diabetic patients. MATERIALS AND METHODS: In this cross-sectional study, 400 type 2 diabetic patients aged 50 or above who referred to Yazd Diabetes Research Center were selec...

Purpose: The objective of this study was to investigate the total antioxidant status (TAS) and DNA damage markers of serum and aqueous humor in patients with pseudoexfoliation (PEX) syndrome. Methods: Twenty-seven cataract patients with PEX and twenty-seven without PEX syndrome were included in the study and groups were matched for age and gender. Patients had no elevated intraocular pressure (...

PURPOSE To investigate the possible association between tumor necrosis factor alpha (TNF-alpha)-308 G/A polymorphism and pseudoexfoliation (PEX) glaucoma. METHODS One hundred and ten Turkish PEX glaucoma patients and 110 healthy control subjects were enrolled in the study. All participants underwent a complete ophthalmic examination. TNF-alpha-308 was genotyped by polymerase chain reaction an...