Publications by authors named "Donzelli F"

Natural colchicinoids and their semisynthetic derivatives are important active ingredients for pharmaceutical applications. Thiocolchicoside (3-demethoxy-3-glucosyloxythiocolchicine) is used in several countries as standard therapy for the treatment of diseases of the muscle-skeletal system, due to its potent antiinflammatory and myorelaxant properties. Manufacturing of thiocolchicoside requires a key step, the regioselective demethylation and glucosylation of chemically derivative thiocolchicine.

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Extracts of kidney beans ( Phaseolus vulgaris ) are known to reduce food intake and glycemia in rodents and humans. This study evaluated the effect of a novel extract of P. vulgaris on food (regular food pellets, starch-enriched diet, and chocolate-flavored beverage) intake, body weight, and glycemia in rats.

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Buprenorphine is a new substance now widely used in detoxification of heroin addicts. In this report we describe the case of a newborn baby who suffered from a neonatal withdrawal syndrome characterized by a severe and prolonged course. This syndrome was followed by marked symptoms of impaired neurological development and by epilepsy.

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We retrospectively examined the 24 hour oesophageal pH study and the upper gastrointestinal (UGI) series of 67 children aged 5 weeks to 15 years. Thirty-seven were suffering from gastro-oesophageal reflux (GER) and 27 from other diseases. Nineteen of them were younger than 6 months, 22 older than 18 months and the remaining 26 ranged from 6 to 18 month old.

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22 infant and children, all tetraplegic from cerebral palsy were admitted to our hospital for suspected gastroesophageal reflux. This working diagnosis was confirmed in 17 of them (77%) by an upper GI series and/or 24 hour oesophageal pH monitoring. All 17 were treated with medical therapy.

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The pharmacokinetics of chlorpromazine after intravenous infusion were studied in 25 children. The pharmacokinetic parameters studied are markedly different from those reported for adults. A clear relationship was demonstrated between age, serum terminal half-life (r = 0.

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A lactose-free soy and beef hydrolysate based formula ("Pregomin" Milupa) was studied in 12 infants affected with protracted enteritis and in 10 infants affected with atopic eczema. After 1 month of treatment with "Pregomin" an oral provocation test was performed using intact soy protein. The aim of this latter test was to evaluate if the hydrolysed soy formula could cause allergic sensitization to soy protein.

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One hundred and eleven children admitted with suspected gastro-oesophageal reflux were studied, with 24 hour oesophageal pH monitoring as the first line of investigation. Barium swallow examination, or oesophagoscopy, or both, were carried out only in children with abnormal pH, who subsequently had a trial of 1-12 months medical treatment. All patients were followed up for eight months to two years.

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A long-term follow-up study (minimum of 10 years) of 16 children admitted for recurrent abdominal pain revealed that in 50% of the sample the disturbance disappeared completely, persisted in 25% and in the remaining 25% other painful symptoms developed. The variables that characterized the poor outcome group were: belonging to a "painful family", many surgical procedures, low educational level and social class and a low score in the Q3 factor of the Sixteen Personality Factor Questionnaire (spare capacity to control emotions).

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After birth, the main energy fuel for the newborn is constituted by fat. Carnitine is necessary for the beta-oxidation of long chain fatty acids at the mitochondrial level, and seems also to have a role in the metabolism of the branched-chain amino acids, in ammonia detoxification, and in urea production. Colostrum is particularly rich in carnitine whereas semi-elemental formulae and soy-based formulae contain little or no carnitine.

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The effect of carnitine administration on lipid metabolism and carnitine and acylcarnitine plasma values of newborn infants, given total parenteral nutrition for the first 7 days of life, was studied during a 4-hour infusion of Intralipid. An increase in plasma concentrations of total carnitine, free carnitine, and short-chain and long-chain acylcarnitine was found, but no significant change in triglycerides, free fatty acids, glycerol, or beta-hydroxybutyrate plasma values was noted, as compared with values obtained without carnitine administration. Moreover, the low free carnitine and short-chain and long-chain acylcarnitine plasma levels found in newborn infants after 7 days of total parenteral nutrition did not seem to impair the utilization of infused lipids.

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The effect of carnitine administration on neonatal lipid metabolism was studied during endovenous loading with Intralipid (1 g/kg body weight over a 4-hour period). During a 6-hour period the plasma level of triglycerides, glycerol, free fatty acids (FFA), beta-hydroxybutyrate (beta-OHB), and acetoacetate were monitored in a group of newborns infused with carnitine and compared with a control group infused only with Intralipid. Carnitine administration caused an increased plasma concentration of ketone bodies, probably consequent to an increased rate of FFA mitochondrial beta-oxidation.

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A 14-month-old child with congenital hypoplastic anemia, in temporary remission after steroid therapy, developed an acute megakarioblastic leukemia. After complete remission due to immunosuppressive treatment, the leukemia rapidly relapsed, and the child died at 23 months of age. The rapid development of leukemia puts some doubt on the initial diagnosis.

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Plasma and urine free carnitine concentration during human development was evaluated. A positive correlation was found between plasma level and body weight in premature neonates weighting between 1.15 and 1.

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Two children with primary intestinal lymphangiectasia (PIL) are presented, both of whom had been prescribed an MCT supplemented diet low in long chain fatty acids. The hypoproteinemic edema improved in one patient, but persisted in the other. Following several years of dietary therapy, both subjects were re-evaluated, and a duodenoscopy and radiography of the digestive tract were performed.

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The van de Kamer titrimetric method for the determination of fecal fatty acids has been compared with the colorimetric technique described by TOMASZEWSKI. Reproducibility and accuracy as well as the applicability in a clinical laboratory service are discussed. The AA.

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BSP clearance from the plasma was studied during phototherapy in a group of jaundice newborns. This therapy did not have any influence on the plasma dye disappearance c curve. The obtained results are consistent with the hypothesis that this therapy causes the photodegradation of bilirubin, and that the increased excretion of unconjugated bilirubin is not mediated by a generalized enhancement of the hepatic output.

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