10 results on '"Vasiljev M"'
Search Results
2. 238. Treatment for exacerbations only does not arrest progressive lung function decline in CF
- Author
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Quan, J.M., Vasiljev, M., Schaeffler, B., Phelps, C., Burrington, C., and Meyer, U.
- Published
- 1999
- Full Text
- View/download PDF
3. Pharmacological treatment of hypertension and hyperlipidemia in Izhevsk, Russia.
- Author
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Cybulsky M, Cook S, Kontsevaya AV, Vasiljev M, and Leon DA
- Subjects
- Adult, Biomarkers blood, Canada, Cardiovascular Diseases diagnostic imaging, Cardiovascular Diseases epidemiology, Cross-Sectional Studies, Guideline Adherence, Healthcare Disparities, Humans, Hyperlipidemias blood, Hyperlipidemias diagnosis, Hyperlipidemias epidemiology, Hypertension diagnosis, Hypertension epidemiology, Hypertension physiopathology, Male, Medication Adherence, Middle Aged, Practice Guidelines as Topic, Practice Patterns, Physicians', Prevalence, Protective Factors, Risk Assessment, Risk Factors, Russia epidemiology, Treatment Outcome, Antihypertensive Agents therapeutic use, Blood Pressure drug effects, Cardiovascular Diseases prevention & control, Cholesterol blood, Hyperlipidemias drug therapy, Hypertension drug therapy, Hypolipidemic Agents therapeutic use
- Abstract
Background: Cardiovascular disease (CVD) is the leading cause of death in Russia. Hypertension and hyperlipidemia are important risk factors for CVD that are modifiable by pharmacological treatment and life-style changes. We aimed to characterize the extent of the problem in a typical Russian city by examining the prevalence, treatment and control rates of hypertension and hyperlipidemia and investigating whether the specific pharmacological regimes used were comparable with guidelines from a country with much lower CVD rates., Methods: The Izhevsk Family Study II included a cross-sectional survey of a population sample of 1068 men, aged 25-60 years conducted in Izhevsk, Russia (2008-2009). Blood pressure and total cholesterol were measured and self-reported medication use was recorded by a clinician. We compared drug treatments with the Russian and Canadian treatment guidelines for hypertension and hyperlipidemia., Results: The prevalence of hypertension was 61 % (age-standardised prevalence 51 %), with 66 % of those with hypertension aware of their diagnosis and 50 % of those aware taking treatment. 17 % of those taking treatment achieved blood pressure control. The majority (59 %) of those taking treatment were not doing so regularly. Prevalence of hyperlipidemia was 45 % (age-standardised prevalence 40 %), however less than 2 % of those with hyperlipidemia were taking any treatment. Types of lipid-lowering and anti-hypertensive medications prescribed were broadly in line with Russian and Canadian guidelines., Conclusion: The prevalence of hypertension and hyperlipidemia is high in Izhevsk while the proportion of those treated and attaining treatment targets is very low. Prescribed medications were concurrent with those in Canada, but adherence is a major issue.
- Published
- 2016
- Full Text
- View/download PDF
4. Self-reported symptoms of chronic cough and breathlessness in working-age men in the city of Izhevsk, Russia: associations with cardiovascular disease risk factors and comorbidities.
- Author
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Cook S, Quint JK, Vasiljev M, and Leon DA
- Abstract
Introduction: Very little is known about the prevalence of respiratory symptoms or their associations with other health conditions in Russia., Methods: Between 2008 and 2010, a sample of 983 men resident in Izhevsk, Russia, took part in a cross-sectional survey. Presence of respiratory symptoms was determined from self-report of chronic productive cough and breathlessness assessed using the British Medical Research Council (MRC) breathlessness scale. Self-reported physical and mental health were measured using the 12-Item Short-Form Health Survey (SF-12). Hypertension was assessed from mean blood pressure measured at the health check and/or self-reported use of antihypertensive medication. Other comorbidities were assessed from self-report. Logistic regression models were fitted assessing the association between respiratory symptoms and comorbidities. Linear regression models were fitted to investigate the association between respiratory symptoms and self-reported health scores. All models were adjusted for age, education and smoking status., Results: The age-standardised prevalence of cough and breathlessness was 20.9% (prevalence with breathlessness MRC grade 3 or above 3.7%). The majority of men with respiratory symptoms (87.3%) were current smokers. Cough and breathlessness were associated with substantially worse self-reported physical and mental health (test for trend with severity of breathlessness p<0.001). Those with chronic cough and grade 3 or above breathlessness had higher odds of having hypertension (OR 3.03; 95% CI 1.36 to 6.74), diabetes (OR 10.55; 95% CI 2.69 to 41.37), angina pectoris (OR 7.54; 95% CI 3.61 to 15.73), previous myocardial infarction (OR 7.61; 95% CI 2.10 to 27.4) and previous stroke (OR 6.61; 95% CI 1.75 to 23.34) compared with those without respiratory symptoms., Conclusions: The prevalence of respiratory symptoms was high. Strong associations were found between respiratory symptoms and cardiovascular comorbidities. These are of particular importance given the extremely high level of cardiovascular disease mortality in Russia.
- Published
- 2015
- Full Text
- View/download PDF
5. Socio-demographic predictors of dimensions of the AUDIT score in a population sample of working-age men in Izhevsk, Russia.
- Author
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Cook S, De Stavola B, Saburova L, Kiryanov N, Vasiljev M, McCambridge J, McKee M, Polikina O, Gil A, and Leon DA
- Subjects
- Adult, Cross-Sectional Studies, Demography, Educational Status, Factor Analysis, Statistical, Humans, Male, Middle Aged, Russia epidemiology, Socioeconomic Factors, Surveys and Questionnaires, Alcohol Drinking epidemiology, Alcohol-Related Disorders epidemiology, Unemployment
- Abstract
Aims: To investigate the relationship between socio-demographic factors and alcohol drinking patterns identified through a formal analysis of the factor structure of the Alcohol Use Disorders Identification Test (AUDIT) score in a population sample of working-age men in Russia., Methods: In 2008-2009, a sample of 1005 men aged 25-59 years living in Izhevsk, Russia were interviewed and information collected about socio-demographic circumstances. Responses to the AUDIT questions were obtained through a self-completed questionnaire. Latent dimensions of the AUDIT score were determined using confirmatory factor analysis and expressed as standard deviation (SD) units. Structural equation modelling was used to estimate the strength of association of these dimensions with socio-demographic variables., Results: The AUDIT was found to have a two-factor structure: alcohol consumption and alcohol-related problems. Both dimensions were higher in men who were unemployed seeking work compared with those in regular paid employment. For consumption, there was a difference of 0.59 SDs, (95% confidence interval (CI): 0.23, 0.88) and for alcohol-related problems one of 0.66 SD (95% CI: 0.31, 1.00). Alcohol-related problems were greater among less educated compared with more educated men (P-value for trend = 0.05), while consumption was not related to education. Similar results were found for associations with an amenity index based on car ownership and central heating. Neither dimension was associated with marital status. While we found evidence that the consumption component of AUDIT was underestimated, this did not appear to explain the associations of this dimension with socio-demographic factors., Conclusions: Education and amenity index, both measures of socio-economic position, were inversely associated with alcohol-related problems but not with consumption. This discordance suggests that self-reported questions on frequency and volume may be less sensitive markers of socio-economic variation in drinking than are questions about dependence and harm. Further investigation of the validity of the consumption component of AUDIT in Russia is warranted as it appears that the concept of a standard 'drink' as used in the instrument is not understood.
- Published
- 2011
- Full Text
- View/download PDF
6. The choice of compressor effects the aerosol parameters and the delivery of tobramycin from a single model nebulizer.
- Author
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Standaert TA, Vandevanter D, Ramsey BW, Vasiljev M, Nardella P, Gmur D, Bredl C, Murphy A, and Montgomery AB
- Subjects
- Aerosols administration & dosage, Particle Size, Reproducibility of Results, Anti-Bacterial Agents administration & dosage, Nebulizers and Vaporizers, Tobramycin administration & dosage
- Abstract
Recent U.S. Phase III trials of the aerosolized delivery of tobramycin to cystic fibrosis (CF) patients demonstrated a significant improvement in pulmonary function and in sputum bacterial density. These trials used the Pari LC Plus nebulizer and DeVilbiss Pulmo-Aide compressor. This compressor is not generally available in Europe, and its power requirements do not match the European power supply. Thus alternate compressors were evaluated, using the LC Plus nebulizer, in preparation for European clinical trials. Aerosol particle size distribution, nebulization time (min), and the respirable dose of tobramycin (mg within 1-5 mu) were obtained for seven compressor models. The respirable quantity delivered by each of the European compressors (240 Volts, 50 Hz) was compared to the LC Plus and PulmoAide compressor (120 Volts, at 60 Hz). The U.S. system delivered 71.4 mg of the 300 mg instilled dose within the respirable range; using the European compressors, between 63.0 and 74.8 mg was delivered. With a 97% confidence that the delivered tobramycin was within 20% of the standard, we conclude that the SystAm 23ST, MedicAid CR50 and CR60, Pari Master and the Pari Boy compressors are equivalent to the U.S. standard; the Hercules and the SystAm 26ST compressors were not statistically equivalent to the standard. Using the LC Plus nebulizer, five European compressors delivered doses of TOBI that are similar to the doses delivered by the DeVilbiss PulmoAide compressors, and thus may be expected to produce clinical results similar to those of the U.S. trials.
- Published
- 2000
- Full Text
- View/download PDF
7. Biological disposition of 8-methoxsalen in rat and man.
- Author
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Smyth RD, Van Harken DR, Pfeffer M, Nardella PA, Vasiljev M, Pinto JS, and Hottendorf GH
- Subjects
- Animals, Biological Availability, Feces analysis, Humans, Kinetics, Male, Rats, Tissue Distribution, Methoxsalen metabolism
- Published
- 1980
8. Disposition of parenteral butorphanol in man.
- Author
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Gaver RC, Vasiljev M, Wong H, Monkovic I, Swigor JE, Van Harken DR, and Smyth RD
- Subjects
- Adult, Biotransformation, Butorphanol administration & dosage, Butorphanol urine, Feces analysis, Humans, Hydroxylation, Injections, Intramuscular, Injections, Intravenous, Kinetics, Male, Protein Binding, Butorphanol metabolism, Morphinans metabolism
- Abstract
The metabolism and elimination of 3H-butorphanol (levo-3, 14-dihydroxy-N-(cyclobutylmethyl)[15-3H]morhinan) tartrate were determined in man after therapeutic im (2 mg) and iv (1 mg) doses. As judged from urinary excretion of radioactivity, the im dose was completely absorbed. Butorphanol was rapidly distributed to tissues, had a plasma half-life of about 3 hr, and was extensively metabolized prior to elimination. The major route of elimination was renal, with fecal excretion being a minor route. Hydroxybutorphanol [3, 14-dihydroxy-N-(trans-3'-hydroxycyclobutylmethyl)morphinan] was isolated and identified as a major urinary metabolite and was also present in the plasma. The disposition of butorphanol is compared and contrasted to the disposition of morphine and pentazocine.
- Published
- 1980
9. Bioavailability and metabolism of potassium phosphanilate in laboratory animals and humans.
- Author
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Lee FH, Van Harken DR, Vasiljev M, Smyth RD, and Hottendorf GH
- Subjects
- Adolescent, Adult, Animals, Biological Availability, Dogs, Humans, Kinetics, Male, Species Specificity, Aniline Compounds metabolism, Anti-Infective Agents metabolism, Organophosphorus Compounds metabolism
- Abstract
Phosphanilic acid is an antibacterial agent with a mode of action and antibacterial spectrum similar to those of sulfamethoxazole, with the exception that it has potent antipseudomonal activity. Bioavailability studies in rats (50, 300, and 600 mg/kg, oral and subcutaneous), dogs (50, 150, and 450 mg/kg, oral and intravenous infusion), and humans (400 and 800 mg, oral) showed that the extent of oral absorption of potassium phosphanilate was low. The bioavailability, calculated by comparing the oral values for area under the plasma concentration curve with those for the respective parenteral doses, was 10% for rats and 45 (50 and 150 mg/kg) and 19% (450 mg/kg) for dogs. The 24-h urinary recovery also confirmed the low oral bioavailability, i.e., rat, 13 (oral) and 75% (subcutaneous); dog, 15 to 29 (oral) and 87% (intravenous) of the dose. Plasma levels and urinary recovery (4%, oral) were low and variable in humans. The poor absorption of oral doses may be due to drug precipitation in the stomach, low permeability of the soluble species due to extensive in situ ionization (pK(a), 1.8 to 2) in the intestine, or first-pass metabolism to N-acetylphosphanilic acid. The plasma t((1/2)) values after parenteral administration were 0.3 h in rats and 1.3 h in dogs. Although the lack of adequate blood levels of phosphanilic acid after oral administration in humans precludes the use of this compound for treatment of systemic infections, the sustained urinary concentration at levels severalfold higher than the minimal inhibitory concentration (1 mug/ml) for at least 10 h postdose was indicative of the therapeutic usefulness in urinary tract infections.
- Published
- 1980
- Full Text
- View/download PDF
10. Spectrophotometric determination of ampicillin in presence of hetacillin.
- Author
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Monteleone PM, Vasiljev MK, and Bomstein J
- Subjects
- Ampicillin pharmacology, Biological Assay, Dimethyl Sulfoxide, Drug Stability, Methods, Nickel, Penicillins pharmacology, Sarcina drug effects, Spectrophotometry, Ultraviolet, Temperature, Time Factors, Ampicillin analysis, Penicillins analysis
- Published
- 1973
- Full Text
- View/download PDF
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