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1.
Klin Padiatr ; 225(5): 247-51, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23966227

RESUMEN

AIM: To evaluate our treatment of neonatal abstinence syndrome (NAS), our experience with rooming-in of opiate-dependent mothers and to examine the influence of rooming-in on short term outcome of infants exposed to opiates in utero. METHOD: Retrospective analysis of maternal and perinatal data of newborn infants with NAS treated between 2004 and 2011 in a level 3 academic children's hospital in a German metropolis. Therapy of NAS and duration of therapy, length of hospital stay and costs were considered in particular. FINDINGS: Data of 77 newborns with NAS were analysed. 84.6% of infants were treated with tincture of opium (79.2% rooming-in, 88.7% no rooming-in). Infants with rooming-in (n=24) had a 17% shorter median duration of therapy [27.0 d (IQR 24.0-38.5), no rooming-in (n=53) 32.5 d (IQR 25.0-54.5)] and shorter median length of hospital stay [33.0 d (IQR 28.0-48.0), no rooming-in 41.5 d (IQR 30.3-54.5)]. Demographic data was comparable between newborns and mothers with or without rooming-in. Costs were median 13 457 € (IQR 8 967-17 494)/patient [rooming-in: 9 547 € (IQR 7 024-16 135), no rooming-in: 14 486 € (IQR 9 479-19 352)]. CONCLUSIONS: Rooming-in in NAS should be encouraged to shorten duration of therapy and length of hospital stay and thereby reduce costs. No major problems arose in the care of the infants with NAS when parents stayed with their infants but close monitoring of the newborn and strict instruction of parents are required.


Asunto(s)
Síndrome de Abstinencia Neonatal/rehabilitación , Trastornos Relacionados con Opioides/rehabilitación , Opio/administración & dosificación , Alojamiento Conjunto , Adulto , Estudios de Cohortes , Terapia Combinada , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Femenino , Alemania , Hospitales Universitarios , Humanos , Recién Nacido , Tiempo de Internación , Masculino , Síndrome de Abstinencia Neonatal/diagnóstico , Trastornos Relacionados con Opioides/diagnóstico , Atención Perinatal , Estudios Retrospectivos , Resultado del Tratamiento
2.
Praxis (Bern 1994) ; 100(9): 531-7, 2011 Apr 27.
Artículo en Alemán | MEDLINE | ID: mdl-21526471

RESUMEN

Polihexanide-containing wound products are often used for the treatment of acute and chronic wounds. Although information pertaining to the use of polihexanide can be found in the literature, the appropriate use of these products in clinical practice is not always clear. The goal of this short review is to provide clinically relevant recommendations to physicians and nurses treating patients with acute and chronic wounds. This review describes the clinically relevant characteristics of polihexanide and gives recommendations for the prophylaxis and treatment of wound infections.


Asunto(s)
Antiinfecciosos Locales/administración & dosificación , Biguanidas/administración & dosificación , Vías Clínicas , Infección de Heridas/tratamiento farmacológico , Antiinfecciosos Locales/efectos adversos , Biguanidas/efectos adversos , Consenso , Humanos
3.
Methods Inf Med ; 49(4): 406-11, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20405093

RESUMEN

OBJECTIVES: Brief intervention helps to reduce alcohol abuse, but there is a need for accessible, cost-effective training of clinicians. This study evaluated STAR Workshop , a web-based training system that automates efficacious techniques for individualized coaching and authentic role-play practice. METHODS: We compared STAR Workshop to a web-based, self-guided e-book and a no-treatment control, for training the Engage for Change (E4C) brief intervention protocol. Subjects were medical and nursing students. Brief written skill probes tested subjects' performance of individual protocol steps, in different clinical scenarios, at three test times: pre-training, post-training, and post-delay (two weeks). Subjects also did live phone interviews with a standardized patient, post-delay. RESULTS: STAR subjects performed significantly better than both other groups. They showed significantly greater improvement from pre-training probes to post-training and post-delay probes. They scored significantly higher on post-delay phone interviews. CONCLUSION: STAR Workshop appears to be an accessible, cost-effective approach for training students to use the E4C protocol for brief intervention in alcohol abuse. It may also be useful for training other clinical interviewing protocols.


Asunto(s)
Automatización/métodos , Evaluación Educacional , Desempeño de Papel , Trastornos Relacionados con Sustancias/prevención & control , Enseñanza , Interfaz Usuario-Computador , Análisis de Varianza , Automatización/instrumentación , Competencia Clínica , Curriculum , Educación , Escolaridad , Humanos , Internet , Estadística como Asunto , Estudiantes de Medicina , Estudiantes de Enfermería , Factores de Tiempo
5.
Arch Pediatr ; 10(5): 442-4, 2003 May.
Artículo en Francés | MEDLINE | ID: mdl-12878339

RESUMEN

UNLABELLED: Symptomatic zinc deficiency can occur in exclusively breast-fed infants. We report a case in a preterm infant. CASE REPORT: A 3-months-old exclusively breast-fed premature infant presented with peri-orificial and acral eczematoid lesions. Laboratory investigations revealed lowered zinc levels in the infant's serum and in her mother's milk. A rapid healing occurred after oral zinc supplementation. DISCUSSION: Zinc deficiency in breast-fed infants is a rare disease caused by a low level of zinc in mother's milk. The clinical features resemble those of acrodermatitis enteropathica. Oral zinc supplementation is required until weaning.


Asunto(s)
Enfermedades del Prematuro/diagnóstico , Recien Nacido Prematuro , Zinc/deficiencia , Lactancia Materna , Eccema/etiología , Femenino , Humanos , Recién Nacido , Leche Humana/química , Zinc/análisis , Zinc/sangre
7.
Synapse ; 39(4): 297-304, 2001 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-11169779

RESUMEN

Treatment with conventional antipsychotic drugs (APDs) is accompanied by extrapyramidal side effects (EPS), which are thought to be due to striatal dopamine D(2) receptor blockade. In contrast, treatment with atypical APDs is marked by a low incidence or absence of EPS. The reduced motor side effect liability of atypical APDs has been attributed to a high serotonin 5-HT(2A) receptor affinity coupled with a relatively low D(2) affinity. Despite the high density of 5-HT(2A) binding sites in the striatum, there are few detectable 5-HT(2A) mRNA-expressing neurons in the striatum. This suggests that most striatal 5-HT(2A) receptors are heteroceptors located on afferent axons. A combined retrograde tracer-immunohistochemistry method was used to determine the sites of origin of striatal 5-HT(2A)-like immunoreactive axons. 5-HT(2A)-like immunoreactive neurons in both the cortex and globus pallidus were retrogradely labeled from the striatum; very few nigrostriatal or thalamostriatal neurons expressed 5-HT(2A)-like immunoreactivity. Within the striatum, parvalbumin-containing interneurons displayed 5-HT(2A) immunolabeling; these neurons are the targets of cortical and pallidal projections. Our data indicate that cortico- and pallido-striatal neurons are the major source of 5-HT(2A) receptor binding in the striatum, and suggest that cortico- and pallido-striatal neurons are strategically positioned to reduce the motor side effects that accompany striatal D(2) receptor blockade or are seen in parkinsonism.


Asunto(s)
Neostriado/química , Neuronas Aferentes/química , Receptores de Serotonina/análisis , Animales , Corteza Cerebral/química , Globo Pálido/química , Inmunohistoquímica , Masculino , Modelos Neurológicos , Vías Nerviosas , Ratas , Ratas Sprague-Dawley , Receptor de Serotonina 5-HT2A , Receptores de Serotonina/inmunología , Sustancia Negra/química , Tálamo/química
8.
DNA Cell Biol ; 19(6): 319-29, 2000 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10882231

RESUMEN

The imidazoline-1 receptor (IR1) is considered a novel target for drug discovery. Toward cloning an IR1, a truncated cDNA clone was isolated from a human hippocampal lambda gt11 cDNA expression library by relying on the selectivity of two antisera directed against candidate IR proteins. Amplification reactions were performed to extend the 5' and 3' ends of this cDNA, followed by end-to-end PCR and conventional cloning. The resultant 5131-basepair molecule, designated imidazoline receptor-antisera-selected (IRAS) cDNA, was shown to encode a 1504-amino acid protein (IRAS-1). No relation exists between the amino acid sequence of IRAS-1 and proteins known to bind imidazolines (e.g., it is not an alpha2-adrenoceptor or monoamine oxidase subtype). However, certain sequences within IRAS-1 are consistent with signaling motifs found in cytokine receptors, as previously suggested for an IR1. An acidic region in IRAS-1 having an amino acid sequence nearly identical to that of ryanodine receptors led to the demonstration that ruthenium red, a dye that binds the acidic region in ryanodine receptors, also stained IRAS-1 as a 167-kD band on SDS gels and inhibited radioligand binding of native I1 sites in untransfected PC-12 cells (a source of authentic I1 binding sites). Two epitope-selective antisera were also generated against IRAS-1, and both reacted with the same 167-kD band on Western blots. In a host-cell-specific manner, transfection of IRAS cDNA into Chinese hamster ovary cells led to high-affinity I1 binding sites by criteria of nanomolar affinity for moxonidine and rilmenidine. Thus, IRAS-1 is the first protein discovered with characteristics of an IR1.


Asunto(s)
Receptores de Droga/genética , Receptores de Droga/inmunología , Receptores de Droga/metabolismo , Secuencias de Aminoácidos , Secuencia de Aminoácidos , Animales , Western Blotting , Células CHO/metabolismo , Células COS/metabolismo , Clonidina/análogos & derivados , Clonidina/metabolismo , Clonación Molecular , Cricetinae , ADN Complementario , Epinefrina/metabolismo , Humanos , Idazoxan/metabolismo , Imidazoles/metabolismo , Receptores de Imidazolina , Sueros Inmunes , Radioisótopos de Yodo , Datos de Secuencia Molecular , Nafazolina/metabolismo , Rojo de Rutenio/química , Rojo de Rutenio/metabolismo , Lugares Marcados de Secuencia , Coloración y Etiquetado , Transfección , Yohimbina/metabolismo
9.
Intensive Care Med ; 24(7): 716-24, 1998 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-9722043

RESUMEN

OBJECTIVE: To compare the effects on fat metabolism and Kupffer cell morphology by total parenteral nutrition (TPN) with two different fat emulsions. DESIGN: Thirty-two male Sprague-Dawley rats, divided into three groups, were investigated. Rats fed orally were used as a reference group, and a group of rats receiving TPN with fat emulsions containing pure long-chain triglycerides (LCT) was compared to a group of rats receiving fat emulsions containing both long-chain triglycerides and medium-chain triglycerides (MCT/LCT). The TPN regimens were equicaloric and administered continuously via a jugular catheter for 10 days. INTERVENTIONS: After suffocation, blood of the rats was collected for the determination of serum lipids. Epididymal fat and heart were collected for the analysis of lipoprotein lipase (LPL) activities, and liver specimens were saved for analyses of hepatic triglyceride concentration, as well as activities of hepatic lipase (HL) and lysosomal enzymes. Light and electron microscopy were used for examination of the Kupffer cell reaction. RESULTS: Directly after termination of parenteral feeding, the levels of serum triglycerides and high density lipoprotein (HDL) triglycerides were higher in the MCT/LCT group than in the LCT group, while no differences concerning cholesterol and phospholipid concentrations were found. No significant difference in liver steatosis was found between the two TPN groups. Comparison of the TPN groups showed that the MCT/ LCT group had significantly decreased LPL activity in adipose tissue, while the LCT group had significantly increased LPL activity in the heart. The activity of HL was low in both groups, but significantly lower in the LCT group. Lipid accumulation and an increased number of lysosomes were found in all Kupffer cell when TPN with LCTemulsions was used. Moreover, TPN induced a pronounced increase in various liver lysosomal enzyme activities, but there was no notable difference between LCT and MCT/LCT effects. CONCLUSIONS: Compared to treatment with pure LCTemulsions, treatment with MCT/LCT emulsions evoked weaker biochemical reactions in terms of lower activity of lipoprotein lipase in fat and heart together with higher serum and HDL triglyceride levels. Morphological signs of increased Kupffer cell activity such as the appearance of multiple lysosomes and fat vacuoles in the cytoplasm followed treatment with pure LCT emulsions. However, both TPN groups showed a marked increase in activities of liver lysosomal enzymes.


Asunto(s)
Emulsiones Grasas Intravenosas/química , Emulsiones Grasas Intravenosas/uso terapéutico , Macrófagos del Hígado/efectos de los fármacos , Macrófagos del Hígado/ultraestructura , Metabolismo de los Lípidos , Nutrición Parenteral Total , Triglicéridos/uso terapéutico , Animales , Evaluación Preclínica de Medicamentos , Lisosomas/ultraestructura , Masculino , Distribución Aleatoria , Ratas , Ratas Sprague-Dawley , Triglicéridos/sangre
10.
Nurse Pract ; 22(3): 150-2, 154, 157 passim, 1997 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-9078521

RESUMEN

This article describes a bilingual mindfulness meditation-based stress reduction program in an inner-city setting. Mindfulness meditation is defined, and the practices of breathing meditation, eating meditation, walking meditation, and mindful yoga are described. Data analysis examined compliance, medical and psychologic symptom reduction, and changes in self-esteem, of English- and Spanish-speaking patients who completed the 8-week Stress Reduction and Relaxation Program at the Community Health Center in Meriden, Conn. Statistically significant decreases in medical and psychologic symptoms and improvement in self-esteem were found. Many program completers reported dramatic changes in attitudes, beliefs, habits, and behaviors. Despite the limitations of the research design, these findings suggest that a mindfulness meditation course can be an effective health care intervention when utilized by English- and Spanish-speaking patients in an inner-city community health center. The article includes a discussion of factors to be considered when establishing a mindfulness meditation-based stress reduction program in a health care setting.


Asunto(s)
Ejercicios Respiratorios , Hispánicos o Latinos , Meditación , Estrés Psicológico/prevención & control , Servicios Urbanos de Salud/organización & administración , Yoga , Adulto , Anciano , Anciano de 80 o más Años , Connecticut , Femenino , Humanos , Masculino , Persona de Mediana Edad , Atención Primaria de Salud/organización & administración , Evaluación de Programas y Proyectos de Salud , Estrés Psicológico/etnología , Traducción
12.
Pediatr Nephrol ; 11(6): 687-90, 1997 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-9438643

RESUMEN

Few data for normal urinary oxalate (Ox) and calcium (Ca) excretion related both to gestational age and nutritional factors have been reported in preterm or term infants. We therefore determined the molar Ox and Ca to creatinine (Cr) ratios in spot urines from 64 preterm and 37 term infants aged 1-60 days, either fed formula or human milk (HM). Only vitamin D was supplemented; renal or metabolic diseases were excluded. Urinary Ox/Cr ratio was higher in preterm than in term infants, both when formula fed (1st month 253 vs. 180 mmol/mol and 2nd month 306 vs. 212 mmol/mol; P<0.05) or HM fed (206 vs. 169 mmol/ mol and 283* vs. 232 mmol/mol; *P<0.05). Ox/Cr was also higher in formula- than HM-fed preterm infants. The ratio increased during the first 2 months of life irrespective of nutrition. Urinary Ca/Cr ratio was comparable in all groups during the 1st month of life, except for a lower (P < 0.05) value in term infants fed HM (0.10 mol/mol). It increased in all groups during the 2nd month of life, being highest in HM-fed preterm infants (1.86 mol/mol). In conclusion, urinary Ox and Ca excretion is influenced by both gestational age and nutrient intake in preterm and term infants.


Asunto(s)
Calcio/orina , Fenómenos Fisiológicos Nutricionales del Lactante/fisiología , Recien Nacido Prematuro/orina , Oxalatos/orina , Lactancia Materna , Creatinina/orina , Femenino , Edad Gestacional , Humanos , Lactante , Alimentos Infantiles , Recién Nacido , Masculino
13.
Psychoanal Rev ; 84(5): 743-51, 1997 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-9442568

RESUMEN

Despite the quiet revolution in response to changing conceptualizations of gender in psychoanalysis, the Western has remained the domain of aggressive phallic masculinity. The iconic imagery of the Western, when combined with its narrative trajectory, is used to tell stories of violent encounters between men. The acceptance of the genre, and its duplication by other cultures and film makers, indicates that the Westerns' imagery and moral solutions tap into some basic deep structures of anxiety and pleasure in violence between men. As long as societies require subtle sublimations of aggressive and violent drives, it is likely that men will seek imaginary regressive experiences to discharge frustrations.


Asunto(s)
Identidad de Género , Películas Cinematográficas , Teoría Psicoanalítica , Violencia/psicología , Humanos , Masculino
14.
J Med Chem ; 39(12): 2354-66, 1996 Jun 07.
Artículo en Inglés | MEDLINE | ID: mdl-8691430

RESUMEN

A series of tetrazole amide derivatives of (+/-)-2-dodecyl-alpha-phenyl-N-(2,4,6-trimethoxyphenyl)-2H-tetrazole-5- acetamide (1) was prepared and evaluated for their ability to inhibit acyl-CoA: cholesterol O-acyltransferase (ACAT) in vitro and to lower plasma total cholesterol in vivo. For this series of compounds, our objective was to systematically replace substituents appended to the amide and tetrazole moieties of 1 with structurally diverse functionalities and assess the effect that these changes have on biological activity. The ensuing structure-activity relationship (SAR) studies identified aryl (7b) and heteroaryl (7f,g) replacements for 2,4,6-trimethoxyphenyl that potently inhibit liver microsomal and macrophage ACAT in vitro and exhibit good cholesterol lowering activity (56-66% decreases in plasma total cholesterol at 30 mg/kg), relative to 1, when compared in the acute rat model of hypercholesterolemia. Replacement of the alpha-phenyl moiety with electron-withdrawing substituents (13e-h), however, significantly reduced liver microsomal ACAT inhibitory activity (IC50 > 1 microM). This is in contrast to electron-donating substituents (13ij,m-q), which produce IC50 values ranging from 5 to 75 nM in the hepatic microsomal assay. For selected tetrazole amides (1, 7b, 13n,o), reversing the order of substituents appended to the 2- and 5-positions in the tetrazole ring (36a-d), in general, improved macrophage ACAT inhibitory activity and provided excellent cholesterol-lowering activity (ranging from 65% to 77% decreases in plasma total cholesterol at 30 mg/kg) in the acute rat screen. The most potent isomeric pair in this set of unsubstituted methylene derivatives (13n and 36a) caused adrenocortical cell degeneration in guinea pigs treated with these inhibitors. In contrast, adrenal glands taken from guinea pigs treated with the corresponding alpha-phenyl-substituted analogs (7b and 36c) were essentially unchanged compared to untreated controls. Subsequent evaluation of 7b and 36c in a rabbit bioassay showed that both compounds and/or their metabolities were present in plasma after oral dosing. Unlike 7b and 36c, compound 1 and related 2,4,6-trimethoxyanilides (13j, 30c,d) showed poor oral activity in the rabbit bioassay. Nevertheless, in cholesterol-fed rabbits, both systemically available (7b, 36c) and poorly absorbed inhibitors (1, 36d) were more effective in lowering plasma total cholesterol than the fatty acid amide CI-976.


Asunto(s)
Anticolesterolemiantes/farmacología , Inhibidores Enzimáticos/farmacología , Esterol O-Aciltransferasa/antagonistas & inhibidores , Tetrazoles/farmacología , Animales , Anticolesterolemiantes/síntesis química , Anticolesterolemiantes/química , Arteriosclerosis/prevención & control , Colesterol/sangre , Colesterol en la Dieta/farmacocinética , Diseño de Fármacos , Evaluación Preclínica de Medicamentos , Inhibidores Enzimáticos/síntesis química , Inhibidores Enzimáticos/química , Cobayas , Hipercolesterolemia/inducido químicamente , Hipercolesterolemia/tratamiento farmacológico , Macrófagos/enzimología , Masculino , Microsomas Hepáticos/enzimología , Estructura Molecular , Conejos , Ratas , Relación Estructura-Actividad , Tetrazoles/síntesis química , Tetrazoles/química
15.
Eur J Pediatr ; 154(8): 649-53, 1995 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-7588967

RESUMEN

UNLABELLED: Non-ketotic hyperglycinaemia (NKH) is a severe seizure disorder associated with high glycine levels. Glycine is a major inhibitory neurotransmitter in the CNS, but has also modulating effects at one of the glutamate receptors, the N-methyl-D-aspartate-(NMDA) receptor. Based on this knowledge we treated a female newborn suffering from severe NKH with the NMDA receptor blocker ketamine in association with strychnine and magnesium supplementation. This treatment led to cessation of seizures, reappearance of swallowing and sucking and improved the neurological status. Some pharmacokinetic data of strychnine and ketamine in the infant are given. CONCLUSION: Ketamine in combination with strychnine may be beneficial in non-ketotic hyperglycinaemia.


Asunto(s)
Errores Innatos del Metabolismo de los Aminoácidos/tratamiento farmacológico , Antagonistas de Aminoácidos Excitadores/uso terapéutico , Glicinérgicos/uso terapéutico , Glicina/sangre , Ketamina/uso terapéutico , Receptores de N-Metil-D-Aspartato/antagonistas & inhibidores , Espasmos Infantiles/tratamiento farmacológico , Estricnina/uso terapéutico , Errores Innatos del Metabolismo de los Aminoácidos/sangre , Errores Innatos del Metabolismo de los Aminoácidos/genética , Aberraciones Cromosómicas/genética , Trastornos de los Cromosomas , Quimioterapia Combinada , Antagonistas de Aminoácidos Excitadores/farmacocinética , Femenino , Genes Recesivos/genética , Glicinérgicos/farmacocinética , Humanos , Recién Nacido , Ketamina/farmacocinética , Examen Neurológico/efectos de los fármacos , Espasmos Infantiles/sangre , Espasmos Infantiles/genética , Estricnina/farmacocinética
16.
Nurse Pract ; 20(6): 23-4, 1995 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-7659316
17.
J Med Chem ; 37(25): 4346-51, 1994 Dec 09.
Artículo en Inglés | MEDLINE | ID: mdl-7996545

RESUMEN

A method was found to synthesize 1-(2,5-dimethoxy-4-(trifluoromethyl) phenyl)-2-aminopropane, 5, and its des-alpha-methyl congener 2-(2,5-dimethoxy-4-(trifluoromethyl)phenyl)aminoethane, 6, the trifluoromethyl analogs of substituted hallucinogenic phenethylamine derivatives such as 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (3, DOI) that are potent 5-HT2A/2C agonists. In our hands, 5 and 6 have proven to have affinity for [3H]ketanserin or [125I]-3-labeled 5-HT2A/2C sites in rat cortex comparable to or higher than the analogous bromo or iodo analogs. Similarly, 5 and 6 had potency comparable to or slightly greater than that of their bromo or iodo congeners in the two-lever drug discrimination assay in rats trained to discriminate saline from LSD tartrate. The agonist properties of 5 and 6 were evaluated by measuring the accumulation of [3H]inositol monophosphate in cultured cells selectively expressing either 5-HT2A or 5-HT2C receptors. In comparison to serotonin (5-HT), compounds 3 (DOI), 5, and 6 were equally efficacious and full agonists at the 5-HT2C receptor. Similarly, 3 and 5 produced equivalent responses at the 5-HT2A receptor as compared to 5-HT. In contrast, 6, the alpha-desmethyl analog of 5, was only half as potent at stimulating inositol monophosphate accumulation at the 5-HT2A receptor. In conclusion, the title compound 5 and its alpha-desmethyl congener 6 appear to be the most potent of the so-called hallucinogenic amphetamine 5-HT agonists reported to date. Further, the reduced efficacy of 6 at the 5-HT2A receptor may offer at least a partial explanation for the observed higher in vivo potencies of alpha-methyl-substituted compounds in this series.


Asunto(s)
Fenetilaminas/síntesis química , Agonistas de Receptores de Serotonina/síntesis química , Células 3T3/metabolismo , 8-Hidroxi-2-(di-n-propilamino)tetralin/metabolismo , Animales , Unión Competitiva , Línea Celular , Discriminación en Psicología , Lóbulo Frontal/metabolismo , Hipocampo/metabolismo , Radioisótopos de Yodo , Ketanserina/metabolismo , Masculino , Ratones , Fenetilaminas/metabolismo , Fenetilaminas/farmacología , Fosfatidilinositoles/metabolismo , Ratas , Ratas Sprague-Dawley , Receptores de Serotonina/metabolismo , Serotonina/metabolismo , Serotonina/farmacología , Agonistas de Receptores de Serotonina/metabolismo , Agonistas de Receptores de Serotonina/farmacología , Tritio
18.
J Clin Oncol ; 12(11): 2271-6, 1994 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-7525884

RESUMEN

PURPOSE: Phase II trial in metastatic urothelial carcinoma using a novel combination chemotherapy regimen consisting of vinblastine, ifosfamide, and gallium nitrate (VIG). PATIENTS AND METHODS: Twenty-seven patients were entered onto this phase II study. Dosages were vinblastine 0.11 mg/kg days 1 and 2, ifosfamide 1.2 gm/m2 days 1 through 5 (with mesna), and gallium 300 mg/m2 as a 24-hour infusion days 1 through 5, with calcitriol (1,25-dihydroxycholecalciferol) 0.5 microgram/d orally starting 3 days before each course (except the first) and continuing throughout gallium administration, plus recombinant human granulocyte colony-stimulating factor (rhG-CSF) (filgrastim) 5 micrograms/kg/d days 7 through 16. Courses were repeated every 21 days for a maximum of six cycles. RESULTS: The major toxicity was granulocytopenia. Fifteen patients (55.6%) had grade 3 or 4 granulocytopenia, including eight patients with granulocytopenic fevers. Eleven patients had grade 3 or 4 anemia and four had grade 3 or 4 nephrotoxicity, which was reversible. Other grade 3 to 4 toxicities included hypocalcemia (three patients), thrombocytopenia (two), encephalopathy (one), and temporary blindness (one). There was one treatment-related mortality. Toxicity was more severe in patients older than 70 years and those with prior pelvic irradiation, prior cisplatin adjuvant therapy, or prior nephrectomy. We now decrease VIG by 20% in this patient population. Eighteen patients (67%) achieved an objective response, including 11 (41%) who attained a disease-free status (five with VIG alone and six with subsequent surgery). Median duration of remission was 20 weeks, with five patients still in remission at 22+ to 56+ weeks. CONCLUSION: VIG combination chemotherapy is very active in patients with metastatic urothelial carcinoma. Toxicity was significant but manageable.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma/tratamiento farmacológico , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Agranulocitosis/inducido químicamente , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Calcitriol/administración & dosificación , Calcitriol/efectos adversos , Carcinoma/mortalidad , Carcinoma/secundario , Esquema de Medicación , Femenino , Filgrastim , Galio/administración & dosificación , Galio/efectos adversos , Factor Estimulante de Colonias de Granulocitos/administración & dosificación , Factor Estimulante de Colonias de Granulocitos/efectos adversos , Humanos , Ifosfamida/administración & dosificación , Ifosfamida/efectos adversos , Masculino , Persona de Mediana Edad , Proteínas Recombinantes/administración & dosificación , Proteínas Recombinantes/efectos adversos , Neoplasias de la Vejiga Urinaria/mortalidad , Vinblastina/administración & dosificación , Vinblastina/efectos adversos
20.
Eur J Pediatr ; 152(5): 446-9, 1993 May.
Artículo en Inglés | MEDLINE | ID: mdl-8319716

RESUMEN

We present a new case of holocarboxylase synthetase (HCS) deficiency, a rare autosomal recessive metabolic disorder, causing the "early-onset" form of multiple carboxylase deficiency. The patient was born at term of healthy consanguineous parents after an uncomplicated pregnancy. On the 2nd day of life she refused oral feeding, became tachydyspnoeic and showed excessive weight loss. Laboratory studies showed metabolic acidosis, marked lactic acidaemia, hyperammonaemia and increased urinary excretion of 3-hydroxyisovaleric acid, 3-methylcrotonylglycine, 3-hydroxpropionic acid and methylcitric acid. Peritoneal dialysis combined with oral supplementation of biotin (10 mg/day) started on the 3rd day of life resulted in rapid clinical recovery and normalisation of biochemical parameters. HCS deficiency was established in lymphocytes and skin fibroblasts. The activities of all biotin-dependent carboxylases were severely decreased in fibroblasts grown in medium with moderate biotin concentration (10(-8) mol/l) but normal in a high biotin medium (10(-5) mol/l). Mitochondrial carboxylase activities in lymphocytes were 23%-29% of mean normal during therapy with 20 mg of biotin/day, with the higher dose of 40 mg/day they were within (3-methylcrotoryl-CoA carboxylase, pyruvate carboxylase) or slightly below (propionyl-CoA carboxylase) the normal range. At the age of 3 years the patient's physical and psychomotor development are normal. Early biotin supplementation should be considered in newborns with lactic acidosis and organoaciduria until a final diagnosis has been established. Furthermore, the required individual dose of biotin has to be carefully evaluated biochemically for the individual patient.


Asunto(s)
Ligasas de Carbono-Nitrógeno , Ligasas/deficiencia , Errores Innatos del Metabolismo/diagnóstico , Errores Innatos del Metabolismo/terapia , Biotina/uso terapéutico , Femenino , Humanos , Recién Nacido , Errores Innatos del Metabolismo/enzimología , Diálisis Peritoneal
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