To determine the natural history of developmental dyscalculia (DC) and factors impacting on its prognosis, we performed a prospective six-year longitudinal study. One hundred and forty children of normal intelligence diagnosed with DC in the fifth grade of elementary school were re-examined for dyscalculia three and six years later, in eighth (n=123) and eleventh (n=104; 41 males, 63 females) g...

BACKGROUND AND PURPOSE Plasma glucose and spreading depression (SD) are both determinants of brain ischemia. The purpose of this study was to examine whether plasma glucose affects SD-induced gene expression in the cortex. METHODS SD was induced by topical application of KCl. Hyperglycemia and hypoglycemia were induced by intraperitoneal injection of glucose and insulin, respectively. The exp...

STUDY OBJECTIVES To evaluate, through clinical and transthoracic echocardiography (TTE) follow-up, the natural history of persistent pericardial effusion (PE) after postoperative day 15 in patients who were given and were not given anticoagulant therapy. DESIGN AND PATIENTS We retrospectively studied a cohort of 1,277 patients who were hospitalized between May 1997 and May 1999 in our center ...

background:  controversy exists as to the potential of asphalt fumes to induce respiratory symptoms and lung functional impairments. objective: to examine the respiratory effects, if any, of occupational inhalation exposure to asphalt fumes. methods:  in this cross-sectional study, 74 asphalt workers and 110 unexposed employees were investigated. the prevalence of respiratory symptoms among sub...

BACKGROUND Mirror therapy has been used as an alternative stimulus to feed the somatosensory cortex in an attempt to preserve hand cortical representation with better functional results. OBJECTIVE To analyze the short-term functional outcome of an early re-education program using mirror therapy compared to a late classic sensory program for hand nerve repair. METHOD This is a randomized con...

An editorial about the use of usual and customary charges for out-of-network benefit determinations.

introduction: chronic obstructive pulmonary disease (copd) secondary to sulfur mustard gas poisoning, known as mustard lung, is a major late pulmonary complications in chemical warfare patients. serious comorbidities like dyslipidemia are frequently encountered in copd. the aim of this study was to measure the serum lipid profile and evaluate the relation of lipid parameters with the severity o...

pharaoh cuttlefish (sepia pharaonis) is commercially important and native cephalopods in the persian gulf and oman sea. in 2013, a total of 150 eggs of pharaoh cuttlefish were collected from 20 m depth in about 6 miles south of lengeh port and transferred to the laboratory of mollusks research station in bandar-e lengeh. eggs were incubated in temperature of 27.5±0.5 0c (mean ± sd) and salinity...