THE VENTILATORY RESPONSE TO HYPOXIA WAS STUDIED IN TWO GROUPS OF SUBJECTS WITH ABNORMAL SYMPATHETIC NERVOUS CONTROL: (a) human subjects with familial dysautonomia (Riley-Day syndrome), and (b) unanesthetized goats treated with an alpha-adrenergic blocking agent (phenoxybenzamine). The ventilatory response to hypoxia was evaluated in two ways: (a) from the slope of the relationship between venti...

PTK6/Brk is a non-receptor tyrosine kinase overexpressed in cancer. Here we demonstrate that cytosolic PTK6 is rapidly and robustly induced in response to hypoxic conditions in a HIF-1-independent manner. Furthermore, a proportion of hypoxic PTK6 subsequently re-localized to the cell membrane. We observed that the rapid stabilization of PTK6 is associated with a decrease in PTK6 ubiquitylation ...

hypoxia is a major concern for human health. multiple new techniques were proposed for tissue oxygenation in different variety of patients.  clark jr. et al. presenting their article titled “fluorovent: a new perfluorocarbon for liquid ventilation”, at a symposium in neonatology, in 1995, described the scientific importance for perfluorocarbons which would be ideally suited for use in liquid ve...

objective(s): the present study was aimed to investigate the influence of thoracic epidural blockade on hypoxia-induced pulmonary hypertension in rats. materials and methods: forty eight wistar rats were randomly divided into 4 equal groups, named normoxia hypoxia hypoxia/ ropivacaine and hypoxia/saline. animals were placed in a hypoxia chamber and instrumented with epidural catheters at the th...

background and aim: respiratory distress syndrome (rds) is a lung disorder, which can damage the auditory brainstem pathways because of hypoxia. the aim of this study was to evaluate brainstem auditory electrophysiology changes of neonates with rds. methods: fifteen term neonates who suffered from rds, 15 term neonates admitted in the nicu for any reason except rds, and 15 normal term neonates ...

Introduction Apnea test (AT) (ApneaLinkTM, RESMED-Munich, Germany) can be used for different clinical conditions to calculate apnea-hypopnea index (AHI) and nocturnal hypoxia (NH) at intensive care unit (ICU) [1]. It’s shown that obstructive sleep apnea syndrome (OSAS) and NH is associated post-operative complications, longer length of hospital stay, atrial fibrillation, pulmonary hypertension ...

To better understand how humans adapt to hypoxia, the levels of hemoglobin (Hb), serum erythropoietin (Epo), and vascular endothelial growth factor (VEGF) were measured in 106 patients with severe obstructive sleep apnea-hypopnea syndrome. The results indicated that temporal hypoxic stimulation increases Hb. Furthermore, a minor increase in Epo and a substantial increase in VEGF were found. The...

We report a patient with hypoxia secondary to a right-to-left shunt through a patent foramen ovale, following aortic root, valve, and arch replacement due to an aortic dissection in the setting of the Marfan syndrome. Following the operation, he failed extubation twice due to hypoxia. An extensive workup revealed a right-to-left shunt previously not seen. The patent foramen ovale was closed usi...

Kluver-Bucy syndrome is an uncommon syndrome of behavioral abnormalities following bilateral temporal lobe injury. Only four children have been reported previously with this syndrome. We report three additional pediatric patients who developed Kluver-Bucy syndrome following hypoxic insults. In two patients, features of the syndrome were transient. Problems in intermediate memory were present in...