ACUTE ~SSlVX COLL~S~. of the lungs is a rare clinical entity which may arise during or very soon after a surgical operation under all forms of anaesthesia? The history always contains details of increasing difficulty in inflating the patient's lungs, followed by rapid onset of cyanosis and death. Mechanical factors such as a kinked endotracheal tube or mucous plugs should be excluded prior to i...

Denoting by (rn)n≥1 the increasing sequence of the numbers p with p prime and α ≥ 2 integer, we prove that rn+1 − 2rn + rn−1 is positive for infinitely many values of n and negative also for infinitely many values of n. We prove similar properties for r n−rn−1rn+1 and 1 rn−1 − 2 rn + 1 rn+1 as well.

BACKGROUND The rapid desensitization of the human prostacyclin (IP) in response to agonist binding has been shown in cell culture. Phosphorylation of the IP receptor by protein kinase C (PKC) has been suggested to be involved in this process. METHODS AND RESULTS In this study we investigated the vasodilatory effects of iloprost, a stable prostacyclin analogue, in perfused rabbit lungs. Contin...

We evaluated the changes in plasma membrane composition, biophysical properties, and morphology of pulmonary endothelial cells in anesthetized rabbits receiving 0.5 ml. kg(-1). min(-1) saline infusion for 180 min, causing mild interstitial edema. Plasma membrane fractions were obtained from lung homogenates with gradient centrifugation, allowing a sixfold enrichment in caveolin-1. In edematous ...

paraquat is a commonly used herbicide in many countries which can lead to systematic poisoning on exposure, in this study, paraquat (pq)-induced changes in the expression of cyclooxygenase-2 (cox-2) along with biochemical and histopathological changes in the lungs, liver and kidneys were studied. twenty four male wistar rats (180-200 g) were exposed either against saline as control group or var...

A study of diseases of the bovine lungs was carried out in Akwa Ibom State Niger a between (1999 – 2002). A tota of 5,369 cattle were slaughtered with n the study period out of wh ch, 459 (8.5 %) lungs were condemned. Tuberculosis accounted for 183(39.921), represent ng 3.4 % of the to al cat e popu at on. This was closely followed by Pneumonia, which was 180(39.2 %), represent ng 3.4 % of th s...

We previously found that increased intravascular pressure decreased ischemic lung injury by a nitric oxide (NO)-dependent mechanism (Becker PM, Buchanan W, and Sylvester JT. J Appl Physiol 84: 803-808, 1998). To determine the role of cyclic nucleotides in this response, we measured the reflection coefficient for albumin (sigma(alb)), fluid flux (), cGMP, and cAMP in ferret lungs subjected to ei...

Exposure to stress induces a cluster of physiological and behavioral changes in an effort to maintain the homeostasis of the organism. Long-term exposure to stress, however, has detrimental effects on several cell functions such as the impairment of antioxidant defenses leading to oxidative damage. Oxidative stress is a central feature of many diseases. The lungs are particularly susceptible to...