(1) Valvular stenoses of the bronchi and especially of the bronchioles in various types of primary pulmonary disease are of considerable importance etiologically.
(2) It was also found that bunitrolol in the dosages tested is a much more potent beta-blocking drug in the bronchi compared to practolol in the dosages tested were equivalent.
(3) It is suggested that lung ventilation takes place in the avian embryo in three distinct stages: the major air-ways become aerated, then respiratory movements begin and lastly the tertiary bronchi are slowly aerated.
(4) The blood flow contributions and drainage patterns of the pulmonary and systemic circulations in the upper airways (trachea and main bronchi) were assessed in anesthetized dogs by injecting 15-micron radiolabeled microspheres into the right and left heart, respectively.
(5) The bronchi were involved more often than the trachea and the foreign body was located more frequently at the right bronchus (38 pt).
(6) 7 cases with bronchiectasis of left lower lobe and lingular segment were treated with left lower lobectomy and extirpation of the bronchi of lingular segment.
(7) Magnetic resonance (MR) imaging of the trachea was performed in twenty-one children with congenital or acquired narrowing of the trachea or main bronchi.
(8) These findings indicate structural abnormalities in the secretory apparatus of neuroendocrine cells in dysplastic bronchi and correlate with experimental observations of aberrant hormonal production associated with bronchial dysplasia.
(9) In the genesis of small airways obstruction (SAO) we have to consider two alterations with different prognoses: the first, in which the obstruction depends on a reduction of the diameters of the small bronchi (i.e.
(10) In two of the cases in which almost the whole lungs were studied on continuous slice images with thin slice high resolution CT, sub-sub-subsegmental bronchi could be easily delineated, except in for the lingular segment.
(11) These histologic changes were not observed in the recipient bronchi during acute rejection, nor were they seen in the donor and the recipient bronchi during lung infection without rejection.
(12) At 1 week after infection, mycoplasma cells were found in large numbers in the bronchi at the surface of bronchial epithelial cells and, in smaller numbers, in the alveoli where active phagocytosis by polymorphonuclear leukocytes (PMN) occurred.
(13) Histidine decarboxylase activity was not found in cells of nonpathogenic neisseria, obtained from bronchi of patients with infectious asthma.
(14) The present results indicate that the systemic (bronchial) circulation is the primary source of tracheal blood flow and that both the pulmonary and systemic circulations may contribute approximately 50% of the blood flow to the main bronchi in dog lungs.
(15) The three agonists provoked significant (p less than 0.05) bronchoconstriction at the level of the main bronchi when identical falls of FEV1 were achieved.
(16) In guinea pigs sensitized with 1 microgram ovalbumin together with 100 mg Al(OH)3, somatostatin levels were selectively increased up to two and 3 times in tissue extracts from trachea and bronchi, respectively, but not in lung as compared to controls.
(17) Diseased controls showed a high PD centrally which fell (became less negative) peripherally (trachea -15.8 mV (SEM 1.0), lobar bronchi -12.6 mV (1.2), segmental bronchi -9.8 mV (1.2].
(18) The consequence of these derangements is often widespread plugging of small bronchi and bronchioles.
(19) A 50% decrease was found in the ability of carcinogen-altered bronchi to act as a substrate for lipid peroxidation mediated by Adriamycin and an approximately 30% decrease for lipid peroxidation induced by t-butyl-hydroperoxide.
(20) Peak uptake values were found 5 min after Adriamycin administration, and the amounts of Adriamycin in normal and carcinogen-altered bronchi were found to be similar.
Bronchiole
Definition:
(n.) A minute bronchial tube.
Example Sentences:
(1) Valvular stenoses of the bronchi and especially of the bronchioles in various types of primary pulmonary disease are of considerable importance etiologically.
(2) Na removal depolarized the smooth muscle membrane to a greater extent in the bronchiole than in the trachealis.
(3) The objective of this research was to determine the effects of viral bronchiolitis and pneumonia on postnatal bronchiolar and alveolar growth.
(4) Three had idiopathic pulmonary fibrosis, 2 had pulmonary emphysema, 1 had bronchiolitis and the other had a sequelae of pulmonary tuberculosis.
(5) (2) A negative inhalation test does not imply a pure emphysema with out peripheral airway disease, any more than it does irreversible bronchiolitis.
(6) We report 7 cases here of a more rare complication, that of bronchiolitis obliterans (BO).
(7) The lung biopsy specimen showed bronchiolitis, so histological findings were thought to be compatible with ventilatory function.
(8) The consequence of these derangements is often widespread plugging of small bronchi and bronchioles.
(9) We therefore conclude that the clinical management of bronchiolitis requires close monitoring of body wt and plasma osmolality-urinary osmolality relationship; serum sodium levels may be misleading.
(10) There were 116 children with bronchiolitis, 83 (72%) of whom had viral infections; the majority of these children (81%) had RSV infection.
(11) Nitric acid and elastase were injected into the tracheae of Wistar white rats and the effect of bronchiolitis on the pathogenesis of experimental emphysema and cor pulmonale was studied.
(12) The dendritic cells were initially described in lymphoid organs and have been recently shown in the normal human lung at the level of the bronchioles, preferentially in the peribronchiolar connective tissue and in the alveolar parenchyma.
(13) As the severity of the lesions increased so did the number of IgA-, IgG(Fc)- and in several cases non-immunoglobulin staining cells around the vasculature, bronchioles and in the alveolar septa.
(14) This case suggests that obstructive bronchiolitis with hypersensitivity pneumonitis is an etiologic factor of mediastinal emphysema.
(15) It was hypothesized that pathogenic Pasteurella spp and other microorganisms in nasal secretions transfer from the nasopharynx into the lungs by draining along the tracheal floor into ventral bronchi, bronchioles, and alveoli, and that pasteurella endotoxin, formed in infected lobules, thromboses and occludes lymphatics, capillaries, and veins and thereby causes ischemic necrosis.
(16) We studied 47 excised human lungs in order to examine the relationship between the number of alveolar attachments surrounding bronchioles 2 mm or less in diameter and the presence of small airways disease and overall lung function.
(17) Transbronchial biopsy revealed a lymphocytic bronchiolitis but no evidence of interstitial lung disease and a marked T-suppressor lymphocytosis was found on analysis of the bronchoalveolar lavage (BAL) specimen.
(18) Histamine hyperresponsiveness with viral bronchiolitis may depend on previous exposures to viruses or to other pathogens.
(19) None of the six ferritin-conjugated lectins showed higher binding in bronchioles compared to the bronchus, suggesting that a high level of surface oligosaccharides is not necessary for resistance to the metaplastic effects of HNE.
(20) Later alveolar septa between adjacent bronchioles became progressively thickened to produce lesions with similarities to human honeycombing.