The influence of anomalous visual experience on the postnatal regulation of axial eye elongation was explored by raising newborn rhesus monkeys under different types of monocular and binocular deprivation and comparing their eye growth pattern with that of age-matched normal monkeys. Monocular manipulations included eyelid suture to eliminate pattern vision; continuous occlusion with an opaque ...

This study was designed to examine the functional properties of myocardium subjected to acute coronary occlusion but surviving the ischemic insult. Ten conscious mongrel dogs underwent mild-circumflex coronary occlusion and were treated for 6 hours with prostacyclin, 540 ng/kg/min, and ibuprofen, 110 micrograms/kg/min, or dipyridamole (7-9.7 micrograms/kg/min). At 7 days, each dog was anestheti...

Unanesthetized macaque monkeys were subjected to middle cerebral artery (MCA) occlusion. Local cerebral blood flow (ICBF) was measured with a hydrogen clearance technique. Mean arterial blood pressure, arterial blood gases, and intracranial pressure were monitored serially. Two weeks after ischemic insult, a neuropathologic examination documented cerebral infarction and its relation to CBF reco...

To define the time course of redistribution of thallium-201 (201Tl), ischemia was induced in seven pigs by temporary occlusion of the circumflex coronary artery. After 1 1/2 min of occlusion 201Tl and labeled microspheres were injected into the left atrium. Flow was re-established 4 min after occlusion. Prior to reflow, the relative activities of 201Tl and microspheres in the ischemic area were...

OBJECTIVE To evaluate the differences in maxillomandibular transverse measurements at either the crown or the estimated center of resistance (CR), and to compare values between normal occlusion and Class III malocclusion groups. METHODS Dental casts and computed tomography (CT) data from 30 individuals with normal occlusion and 30 with skeletal Class III malocclusions were evaluated. Using th...

OBJECTIVE The purposes of this investigation were to determine the horizontal distances between the mandibular posterior teeth and the WALA ridge in a sample of Peruvians with normal occlusion and to compare them by tooth type, sex, arch side, and age groups. METHODS 65 dental casts of subjects with normal occlusion were collected. Posterior teeth, except for third molars, were evaluated. The...

objective: an immediate complete denture is fabricated before the extraction of all teeth. it has several advantages such as preservation of esthetics, muscular tone, normal speech and reduction of post-operative pain. this report describes a method of using patient’s current fixed partial denture (fpd) for single-appointment construction of interim immediate denture.   case: we used patient’s ...

objectives in this study, we aimed to investigate the changes in brain lipidomics following prolonged and intermittent ischemic preconditioning. materials and methods two groups underwent bilateral common carotid artery occlusion either intermittently (for 3 continuous periods within a timeframe of 20 minutes, releasing 3 consecutive times, yielding a total of 9 minutes (intermittent bilateral ...

Physiological Modification of Immediate Ischemia due to Experimental Middle Cerebral Occlusion— Its Relevance to Cerebral Infarction • In cats subjected to middle cerebral artery occlusion, the resulting ischemia was unaffected by the blood pressure at the time of occlusion when arterial PC02 was normal or low. At normal and elevated blood pressures, hypercapnia established prior to occlusion m...