Bronchial Muscle Peristaltic Activity in the Fetal Rat
نویسندگان
چکیده
منابع مشابه
Spontaneous peristaltic airway contractions propel lung liquid through the bronchial tree of intact and fetal lung explants.
Spontaneous contractions of the fetal airways are a well recognized but poorly characterized phenomenon. In the present study spontaneous narrowing of the airways was analyzed in freshly isolated lungs from early to late gestation in fetal pigs and rabbits and in cultured fetal mouse lungs. Propagating waves of contraction traveling proximal to distal were observed in fresh lungs throughout ges...
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heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اولPassive stiffness of rat skeletal muscle undernourished during fetal development
OBJECTIVES The aim of the study was to investigate the effect of fetal undernutrition on the passive mechanical properties of skeletal muscle of weaned and young adult rats. INTRODUCTION A poor nutrition supply during fetal development affects physiological functions of the fetus. From a mechanical point of view, skeletal muscle can be also characterized by its resistance to passive stretch. ...
متن کاملReciprocal activity of longitudinal and circular muscle during intestinal peristaltic reflex.
A two-compartment, flat-sheet preparation of rat colon was devised, which enabled exclusive measurement of longitudinal muscle activity during the ascending and descending phases of the peristaltic reflex. A previous study using longitudinal muscle strips revealed the operation of an integrated neuronal circuit consisting of somatostatin, opioid, and VIP/pituitary adenylate cyclase-activating p...
متن کاملSoluble guanylate cyclase-dependent relaxation is reduced in the adult rat bronchial smooth muscle.
Cyclic nucleotides are relaxants of the airway smooth muscle, yet most of the available data were obtained in adult animals. The expression and activity of cyclases have been reported to be developmentally regulated in the lung, and little is known about the age-related changes in their bronchial muscle relaxation potential. We evaluated and compared the newborn and adult rat bronchial smooth m...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 2006
ISSN: 0031-3998,1530-0447
DOI: 10.1203/01.pdr.0000219121.15634.d1