Vital Minimum
Mostrando 25-36 de 37 artigos, teses e dissertações.
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25. Quimiotaxia de polimorfonucleares em crianças gravemente enfermas
This study examined the in vitro chemotaxis of polymorphonuclear leukocytes (PMNs) obtained from critical care children admitted to a pediatric intensive care unit. The investigation was carried out in three stages. In the first, cells from eight patients and eight healthy volunteers were used to standardize the conditions for the chemotaxis assay. For this
Publicado em: 1996
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26. The central cytoplasmic loop of the major facilitator superfamily of transport proteins governs efficient membrane insertion
Deletion of 5 residues (Δ5) from the central cytoplasmic loop of the lactose permease of Escherichia coli has no significant effect on expression or activity, whereas Δ12 leads to increased rates of permease turnover after membrane insertion and decreased transport activity, and Δ20 abolishes insertion and activity. By expressing Δ12 or Δ20 in two halve
The National Academy of Sciences.
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27. Successful prolonged resuscitation after open heart surgery
Five selected cases of successful prolonged resuscitation (up to 16 hours) after open heart surgery are presented. Four had undergone prosthetic valve insertion, two being double replacements. External cardiac massage did not produce any demonstrable damage to the heart or the implanted valve prostheses, the competent prostheses probably assuring the haemody
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28. Hel-N1: an autoimmune RNA-binding protein with specificity for 3' uridylate-rich untranslated regions of growth factor mRNAs.
We have investigated the RNA binding specificity of Hel-N1, a human neuron-specific RNA-binding protein, which contains three RNA recognition motifs. Hel-N1 is a human homolog of Drosophila melanogaster elav, which plays a vital role in the development of neurons. A random RNA selection procedure revealed that Hel-N1 prefers to bind RNAs containing short str
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29. Long term changes in lung function after surgical treatment of bullous emphysema in smokers and ex-smokers.
Eleven patients who had received surgical treatment for bullous emphysema had regular assessment of lung function for a minimum of four years (mean 8.8, range 4-20 years). For each patient we estimated the annual rate of change in FEV1 and "relaxed" vital capacity (before and after bronchodilator aerosol) and in carbon monoxide transfer factor (TLCO), transf
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30. Ventilation and gas exchange during sleep in patients with interstitial lung disease.
Ventilation and gas exchange during overnight sleep was studied in a group of seven patients with severe interstitial lung disease (mean vital capacity 50%, mean diffusing capacity 46% predicted), to see whether clinically significant oxygen desaturation occurred. Patients with a history of loud snoring or clinically significant airflow obstruction were excl
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31. Proline iminopeptidase from the outer cell envelope of the human oral spirochete Treponema denticola ATCC 35405.
Certain periodontopathic organisms have been shown to exhibit high activity of proline iminopeptidase (PIPase). The human oral spirochete Treponema denticola ATCC 35405 was found to contain an easily extractable, novel PIPase (EC 3.4.11.5), which was purified to a sodium dodecyl sulfate- polyacrylamide gel electrophoresis-pure form by means of fast protein l
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32. Relationship of Critical Temperature to Macromolecular Synthesis and Growth Yield in Psychrobacter cryopegella
Most microorganisms isolated from low-temperature environments (below 4°C) are eury-, not steno-, psychrophiles. While psychrophiles maximize or maintain growth yield at low temperatures to compensate for low growth rate, the mechanisms involved remain unknown, as does the strategy used by eurypsychrophiles to survive wide ranges of temperatures that includ
American Society for Microbiology.
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33. Relation between distal airspace size, bronchiolar attachments, and lung function.
BACKGROUND--Smoking related fixed airway obstruction may be due to airway scarring and narrowing or decreased support due to loss of adjacent alveolar walls. In this study of resected specimens, preoperative pulmonary function was compared with results of a morphometric study of lung structure. METHODS--Morphometric measurements were made on 42 inflation fix
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34. Toxoplasma gondii Asexual Development: Identification of Developmentally Regulated Genes and Distinct Patterns of Gene Expression
Asexual development in Toxoplasma gondii is a vital aspect of the parasite's life cycle, allowing transmission and avoidance of the host immune response. Differentiation of rapidly dividing tachyzoites into slowly growing, encysted bradyzoites involves significant changes in both physiology and morphology. We generated microarrays of ∼4,400 Toxoplasma cDNA
American Society for Microbiology.
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35. Respiratory health of workers exposed to low levels of chromium in stainless steel production.
OBJECTIVES: To determine whether occupational exposure to chromite, trivalent chromium, or hexavalent chromium causes respiratory diseases, an excess of respiratory symptoms, a decrease in pulmonary function, or signs of pneumoconiosis among workers in an integrated chain of stainless steel production. METHODS: This cross sectional study was carried out in 1
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36. Assessment of reversibility of airway obstruction in patients with chronic obstructive airways disease.
Spirometry before and after an inhaled beta agonist or a course of oral prednisolone is widely used to detect reversible airflow limitation in patients with chronic obstructive lung disease. How many of these patients have a response and how the response to beta agonists relates to the response to corticosteroids is not clear. In 127 outpatients (mean (SD) F