Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0847097 (acidity)
 15,165 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Neonatal pulmonary maturity was studied by the Clements shake test in gastric aspirate of 52 newborn infants and their results were compared with those of the same shake test performed in amniotic fluid. Visual assessment, acidity, cytology and the shake test showed marked similarities between gastric aspirate and amniotic fluid obtained immediately before delivery. No infants with a positive shake test in amniotic fluid or gastric aspirate developed RDS while 4 of 5 infants with intermediate or negative shake test results developed RDS.
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PMID:[Clements' test in gastric aspirate of newborn infants for the prediction of pulmonary maturity]. 215 12

The renal effects of dopamine have been studied in preterm infants with RDS. Dopamine has been given in doses of 0.5-2.0 microgram/kg/min as a continuous intravenous infusion in cases of peripheral circulatory disturbances. As a result, the circulation became stable and some renal parameters improved. There was a + 106% increase of urine output as well as a + 73%, + 140%, + 21% increase in Na-excretion, FeNa, creatinine clearance respectively. In accordance with the marked increase in phosphorus excretion the titratable acidity was also increased. There was a significant decrease in the renal urea excretion and free water clearance. These alterations were probably caused by an intrarenal hemodynamic redistribution. The possible mechanism of the renal changes are also discussed. The observations demonstrate the functional maturity of renal dopaminergic receptors in the preterm infants.
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PMID:Effects of dopamine on renal functions in premature neonates with respiratory distress syndrome. 685 36

A second order derivative spectrophotometric method for the determination of bifonazole in the presence of methyl- and propyl p-hydroxybenzoate as preservatives has been developed. The determination was performed in a 0.1 M HCl solution at 241.5 nm, a wavelength corresponding to the intersection of the second order derivative spectra (2D) of methyl- and propyl p-hydroxybenzoate with the axis (zero-crossing point). On the basis of the knowledge of acidity constants and solubility, as well as of the investigations of zero-order and 2D spectra of bifonazole and preservatives, these conditions were chosen as optimal ones. A calibration curve constructed for bifonazole concentrations ranging from 1.5 to 15 microg/ml had a correlation coefficient of 0.9998. Reliability and reproducibility of the method was checked by analyzing laboratory mixtures of bifonazole and preservatives (recovery 99.97-102.7%; RDS 0.48-1.46%). The proposed method was applied for the determination of bifonazole in a commercial cream formulation. The mean value of bifonazole obtained per 100 g cream was 1.029 g (102.9% of the labeled claim) with a RSD of 0.60%.
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PMID:Determination of bifonazole in creams containing methyl- and propyl p-hydroxybenzoate by derivative spectrophotometric method. 1294 40