999 resultados para compound 48-80
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The effect of aging on steady-state plasma concentrations of citalopram (CIT) and desmethylcitalopram (DCIT) was investigated in 128 depressive patients treated with 10-80 mg/day CIT. They were separated into three groups, with age up to 64 years (mean age+/-S.D.: 47+/-12 years; n=48), between 65 and 79 years (72+/-1 years; n=57), and from 80 years or older (84+/-1 years; n=23). Body mass index (BMI), renal and hepatic functions were similar in the three groups. A large interindividual variability of plasma levels of CIT (16-fold) and DCIT (12-fold) was measured for a given dose. The mean plasma levels of CIT corrected for a 20 mg daily dose were 55% higher in the very elderly (>=80 years) patients (65+/-30 ng/ml; p<0.001) and 38% higher in the elderly (65-79 years) patients (58+/-24 ng/ml; p<0.001) when compared to the adult patients (42+/-17 ng/ml). DCIT mean plasma level was 38% higher (p<0.05) in the group of very elderly patients (22+/-10 ng/ml) when compared to the adult patients (16+/-9 ng/ml). As a consequence, the mean plasma concentration of CIT+DCIT was 48% higher in the very elderly patients (86+/-36 ng/ml; p<0.001) and 33% higher in the elderly patients (77+/-28 ng/ml; p<0.001) when compared to the adult patients (58+/-21 ng/ml). Age correlated significantly with CIT (r=0.43, p<0.001), DCIT (r=0.28, p<0.01), and CIT+DCIT plasma levels (r=0.44, p<0.001), and thus accounts for 18% of the variability of CIT plasma levels, with no influence of gender. The recommended dose reduction of CIT in elderly patients seems therefore justified.
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Newsletter from the University of Iowa School of Library and Information Science.
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La durée moyenne de vie d'une population est l'un des principaux indicateurs de l'état de santé, en¦tous cas celui qui est le plus utilisé. Cette durée moyenne peut être estimée de plusieurs façons,¦chacune basée sur une table de mortalité différente. La plus répandue est celle calculée avec les¦tables de mortalité du moment. Une deuxième approche est la table de génération, qui estime la¦durée moyenne de vie des générations éteintes au moment de l'analyse. Enfin, la troisième approche¦est une table de cohorte (de survie), construite à partir d'individus suivis depuis un recensement.¦Cette dernière possibilité est récemment disponible en Suisse avec l'appariement des données¦fédérales provenant du recensement et de la mortalité, permettant une comparaison des durées¦moyennes de vie estimées selon trois approches différentes (moment, génération, cohorte). Vu les¦débats actuels sur l'accroissement de la longévité et la diminution rapide de la mortalité chez les¦personnes âgées et très âgées, nous nous sommes concentrés sur la comparaison des durées¦moyennes de vie chez les personnes de plus de 80 ans. Notre étude montre que la durée moyenne¦de vie issues des tables de cohorte est inférieure à celle estimée à partir des tables de génération.¦L'espérance de vie du moment est également en‐dessous de celle estimée par les tables de¦génération, mais dans une moindre proportion. Cette étude est la première à ce jour à comparer les¦tables de cohorte, de génération et du moment en Suisse.
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Annual Report for the Iowa Civil Rights Commission
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OBJECTIVES: in a retrospective study, attempts have been made to identify individual organ-dysfunction risk profiles influencing the outcome after surgery for ruptured abdominal aortic aneurysms. METHODS: out of 235 patients undergoing graft replacement for abdominal aortic aneurysms, 57 (53 men, four women, mean age 72 years [s.d. 8.8]) were treated for ruptured aneurysms in a 3-year period. Forty-eight preoperative, 13 intraoperative and 34 postoperative variables were evaluated statistically. A simple multi-organ dysfunction (MOD) score was adopted. RESULTS: the perioperative mortality was 32%. Three patients died intraoperatively, four within 48 h and 11 died later. A significant influence for pre-existing risk factors was identified only for cardiovascular diseases. Multiple linear-regression analysis indicated that a haemoglobin <90 g/l, systolic blood pressure <80 mmHg and ECG signs of ischaemia at admission were highly significant risk factors. The cause of death for patients, who died more than 48 h postoperatively, was mainly MOD. All patients with a MOD score >/=4 died (n=7). These patients required 27% of the intensive-care unit (ICU) days of all patients and 72% of the ICU days of the non-survivors. CONCLUSION: patients with ruptured aortic aneurysms from treatment should not be excluded. However, a physiological scoring system after 48 h appears justifiable in order to decide on the appropriateness of continual ICU support.
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The objective of the investigation was the development of a test that would readily identify the potential of an aggregate to cause D-cracking because of its susceptivity to critical saturation. A Press-Ur-Meter was modified by replacing the air chamber with a one-inch diameter plastic tube calibrated in milli-. It was concluded that the pore index was sufficiently reliable to determine the D-cracking potential of limestone aggregates in all but a few cases where marginal results were obtained. Consistently poor or good results were always in agreement with established service records or concrete durability testing. In those instances where marginal results are obtained, the results of concrete durability testing should be considered when making the final determination of the D-cracking susceptibility of the aggregate in question. The following applications for the pore index test have been recommended for consideration: concrete durability testing be discontinued in the evaluation process of new aggregate sources with pore index results between 0-20 (Class 2 durability) and over 35 (Class 1) durability; composite aggregates with intermediate pore index results of 20-35 be tested on each stone type to facilitate the possible removal of low durability stone from the production process; and additional investigation should be made to evaluate the possibility of using the test to monitor and upgrade the acceptance of aggregate from sources associated with D-cracking.
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The purpose of this project was to determine the optimal hole pattern needed for undersealing work, and also to determine if it is feasible to underseal a roadway with existing longitudinal subdrains without plugging the subdrain system. At the test site the hole pattern had little effect on the grout distribution. It was found that the hole pattern, to be effective, must locate existing voids and that holes must extend at least 2 in. (5 cm) below the underside of the pavement. It appeared that pavements can be undersealed without significant damage to the existing subdrains, but special care is needed to assure that excess grout is not injected into the drainage system. Recommendations are made concerning the hole pattern, grout efflux time, and procedures for minimizing the risk of plugging the subdrains with grout.
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Background and Aims: The 2007 European Crohn's and Colitis Organization guidelines on anemia in inflammatory bowel disease (IBD) favour intravenous (iv) over oral (po) iron supplementation due to better effectiveness and tolerance. We aimed to determine the percentage of IBD patients under iron supplementation therapy and the dynamics of prescription habits (iv versus po) over time. Methods: Helsana, a leading Swiss health insurance company provides coverage for approximately 18% of the Swiss population, corresponding to about 1.2 million enrollees. Patients with Crohn's disease (CD) and ulcerative colitis (UC) were analyzed from the anonymised Helsana database. Results: In total, 629 CD (61% female) and 398 UC (57% female) patients were identified, mean observation time was 31.8 months for CD and 31.0 months for UC patients. Of the entire study population, 27.1% were prescribed iron (21.1% in males and 31.1% in females). Patients treated with IBD-specific drugs (steroids, immunomodulators, anti-TNF agents) were more frequently treated with iron compared to patients without any medication (35.0% vs. 20.9%, OR 1.91, 95%-CI 1.41-2.61). The prescription of iv iron increased from 2006/2007 (48.8% of all patients receiving any iron priscription) to 65.2% in 2008/2009 by a factor of 1.89. Conclusions: One third of the IBD population was treated with iron supplementation. A gradual shift from oral to iv iron was observed over time. This switch in prescription habits goes along with the implementation of the ECCO consensus guidelines on anemia in IBD.
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We characterize the value function of maximizing the total discounted utility of dividend payments for a compound Poisson insurance risk model when strictly positive transaction costs are included, leading to an impulse control problem. We illustrate that well known simple strategies can be optimal in the case of exponential claim amounts. Finally we develop a numerical procedure to deal with general claim amount distributions.
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BACKGROUND: Esophageal replacement for caustic stenosis in children poses a challenging surgical problem. Blind removal of the injured esophagus without thoracotomy through a left cervical and transhiatal approach followed by an orthotopic esophageal replacement using either the colon or the stomach is a difficult procedure and can be dangerous in children. We performed our first total laparoscopic transhiatal esophagectomy in February 2007. We aim to compare this new technique to the previously applied method of blind closed-chest esophagectomy through a cervicotomy and laparotomy. METHODS: We analyzed the surgery and follow-up of 40 children operated upon for extensive irreversible caustic burns of the esophagus. The first 20 esophageal replacements were performed following a blind dissection of the mediastinum through a cervical incision and a laparotomy for esophagectomy (Group I). The last 20 esophageal replacements were performed after laparoscopic transhiatal dissection in the mediastinum and cervicotomy in the neck for esophagectomy (Group II). All operations were performed under the supervision of the same senior surgeon. RESULTS: Average age at the time of surgery was the same in both groups. Total esophagectomy was achieved in 45.0% of cases in Group I versus in 90.0% of cases in Group II. Colon was used in 80.0% of cases in Group I and in 90.0% in Group II. The mean duration of surgery was one hour longer in the laparoscopy group. One vascular injury was reported in the blind laparotomy group. Pneumothorax was more frequent in Group II without significant consequences besides drainage. Average time of extubation was about the same in both groups (1.8days). CONCLUSION: Laparoscopic transhiatal esophagectomy for caustic burns before esophageal replacement in children is safe and effective. It could avoid vascular and bronchial mediastinal injuries as the dissection is performed under direct visual control. The routine use of laparoscopic assistance by a senior surgeon improves the safety of esophageal dissection and reduces life-threatening complications.
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Background: Two or three DNA primes have been used in previous smaller clinical trials, but the number required for optimal priming of viral vectors has never been assessed in adequately powered clinical trials. The EV03/ANRS Vac20 phase I/II trial investigated this issue using the DNA prime/poxvirus NYVAC boost combination, both expressing a common HIV-1 clade C immunogen consisting of Env and Gag-Pol-Nef polypeptide. Methods: 147 healthy volunteers were randomly allocated through 8 European centres to either 3xDNA plus 1xNYVAC (weeks 0, 4, 8 plus 24; n¼74) or to 2xDNA plus 2xNYVAC (weeks 0, 4 plus 20, 24; n¼73), stratified by geographical region and sex. T cell responses were quantified using the interferon g Elispot assay and 8 peptide pools; samples from weeks 0, 26 and 28 (time points for primary immunogenicity endpoint), 48 and 72 were considered for this analysis. Results: 140 of 147 participants were evaluable at weeks 26 and/ or 28. 64/70 (91%) in the 3xDNA arm compared to 56/70 (80%) in the 2xDNA arm developed a T cell response (P¼0.053). 26 (37%) participants of the 3xDNA arm developed a broader T cell response (Env plus at least to one of the Gag, Pol, Nef peptide pools) versus 15 (22%) in the 2xDNA arm (P¼0.047). At week 26, the overall magnitude of responses was also higher in the 3xDNA than in the 2xDNA arm (similar at week 28), with a median of 545 versus 328 SFUs/106 cells at week 26 (P<0.001). Preliminary overall evaluation showed that participants still developed T-cell response at weeks 48 (78%, n¼67) and 72 (70%, n¼66). Conclusion: This large clinical trial demonstrates that optimal priming of poxvirus-based vaccine regimens requires 3 DNA regimens and further confirms that the DNA/NYVAC prime boost vaccine combination is highly immunogenic and induced durable T-cell responses.
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O objetivo da pesquisa foi avaliar a composição química da carne de cabrito-mamão (idade média de 72 dias), da raça Moxotó (MOX), grupos genéticos ¾ Pardo Alpina x ¼ Moxotó (3/4 PAMOX) e ½ Pardo Alpina x ½ Moxotó (1/2 PAMOX). A análise apresentou valores médios entre 77,80% a 80,25% de umidade; 15,90% a 19,08% de proteína; 1,12% a 1,21% de gordura, e 1,29% a 2,03% de cinzas. Quanto à composição mineral, os valores médios variaram de 5,62 mg/100 g a 8,21 mg/100 g de cálcio; 156,97 mg/100 g a 196,25 mg/100 g de fósforo; 0,26 mg/100 g a 0,48 mg/100 g de ferro; 16,25 mg/100 g a 23,72 mg/100 g de magnésio; 59,20 mg/100 g a 78,79 mg/100 g de sódio, e de 259,69 mg/100 g a 292,24 mg/100 g de potássio. Foram encontradas diferenças significativas a 5% de probabilidade entre os grupos genéticos no que diz respeito à composição de umidade, proteína e cinzas e mineral quanto a elementos estudados. Não houve diferenças entre os valores de gordura dos grupos genéticos.
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AIM: The aim of this case report was to show the importance to research metabolic etiology, especially a carnitine deficiency in dilated cardiomyopathy of children. CASE REPORT: A three years old Togolese child presented muscular hypotonia, dyspnea. Examination showed left galop murmur and systolic murmur 2/6. Chest X-ray showed cardiomegaly (CTI: 0.66), electrocardiogram, a sinusal rythm, left ventricle hypertrophy and T wave abnormalities. Echocardiogram showed a markedly dilated left ventricle with reduced systolic function (EF: 0.43; reference range 0.55-0.80) and moderate mitral regurgitation. The inflammatory signs where negatives. Magnetic resonance imaging don't show signs of ischemic or myocarditis. The levels of free and total plasmatic carnitine decreased: 3μmol/L (N: 18-48μmol/L) and 5μmol/l (N: 29-70μmol/L) respectively. Mutation analysis of the gene SLC22A5 confirms the diagnosis of primary systemic carnitine deficiency. Treatment with oral carnitine was started at 200mg/kg per day. Within three weeks of treatment, we observed the decrease of all symptoms and the left ventricular size and function normalized (EF: 0.62). He has now been on oral carnitine for live. CONCLUSION: Primary carnitine deficiency is a cause of dilated cardiomyopathy in child. It must systematically be suspected when a child presents a primitive cardiomyopathy. The treatment with oral carnitine for live is simple, with excellent prognosis.