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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 23 (1995), S. 0 
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Altogether 1462 women aged 38, 46, 50, 54 and 60 yr were examined in 1968/69 in a combined medical and denial population study in Gothenburg, Sweden. Number of tooth surfaces restored with amalgam fillings was assessed. The examination was repealed in 1980/81 including a new dental examination. The results from a number of biochemical analyses of blood, serum and urine were analyzed for a possible statistical relationship to number of denial amalgam fillings. As emphasis has been put in the literature on special influence from amalgam on kidney function and on the immunological system, special attention was paid to variables which might reflect these functions in our analyses. When potential con-founders were taken into consideration, no significant correlations remained which seemed to be of clinical importance. Specifically, amalgam fillings were not found to be associated with impairment of the kidney function or the immunological status.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Copenhagen : Munksgaard International Publishers
    Journal of oral pathology & medicine 30 (2001), S. 0 
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Patients with oral lichen planus (OLP) often relate the onset and aggravation of oral symptoms to increased levels of stress. Under normal conditions, stress induces increased cortisol secretion that counteracts inflammatory reactions. The objective of the present study was to assess whether patients with OLP have an impaired capacity to elevate their cortisol concentrations as a response to stress. Saliva samples were collected for cortisol analysis from 10 OLP patients once every 15 min during a 2-h test period. In order to induce stress during a part of this test period, the patients were confronted with a computerised device specifically developed for the induction of transient stress. A visual analogue scale (VAS) and a mood adjective check list (MACL) were used to estimate the degree of permanent stress. A control group of patients was matched for age and sex. The OLP patients did not present with different stress scores when a psychometric test (MACL) was used. No statistically significant correlation between cortisol concentration and stress level was observed. Thus, no support for an impaired capacity of OLP patients to suppress an immune response through cortisol induction in conjunction with experimental stress was revealed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé On obtient un taux de succès d'environ 90% après des opérations primaires pour hyperparathyroïdie, alors que la plupart de séries d'intervention secondaires font état d'un taux de succès allant de 60 à 80%. La série présentée ici comprend 29 patients qui ont eu un dosage par cathéterisation veineuse pour déterminer le taux de parathormone intacte avant d'être réopérés d'une hyperparathyroïdie persistante. Les échantillons ont été prélevés à partir de la veine jugulaire interne, les veines innominées et la veine cave supérieure. On n'a jamais essayé de cathéteriser sélectivement les veines du cou ou du médiastin. Quatre chirurgiens ont été réalisées 1, 2, 13 et 13 réinterventions, respectivement. Chez tous les patients, des dose élevées de parathormone ont été retrouvées. En moyenne, le gradient de différence entre les valeurs les plus hautes et les plus basses était de 5. Du tissu parathyroïde pathologique a été retrouvé à proximité des taux élevés de parathormone chez 27 patients. Chez deux patients, où aucun tissu pathologique n'avait été retrouvé, les patients sont restés hyperparathyroïdien en période postopératoire. Ces deux résultats étaient le fait du chirurgien qui n'a opéré que deux cas. Lorsque la concentration en parathormone était élevée dans la veine innominée gauche, il était très difficile de déterminer si l'adénome était localisé dans le médiastin ou dans le bas du cou. Aucun patient n'a développé d'hypoparathyroïdie postopératoire. Pour éviter cette complication, la parathyroïde a été transplantée dans le tissu souscutané de l'abdomen chez 9 patients. Aucune paralysie récurrentielle n'a été observée dans cette série. L'introduction de tests fìables pour doser la parathormone rend la cathéterisation sélective non nécessaire pour localiser le tissu parathyroïdien chez le patient avec une hyperparathyroïdie persistante après intervention.
    Abstract: Resumen La tasa de éxito en las operaciones para hiperparatiroidismo primario es de alrededor de 90%, en comparación con 60–80% en la mayoría de las series de operaciones secundarias. La serie que aquí se presenta incluye 29 pacientes reoperados, los cuales fueron sometidos a cateterismo y muestreo venoso para determinar la concentración de hormona paratiroidea intacta antes de practicar la cirugía reoperatoria. Se tomaron muestras sanguíneas de las venas yugulares internas, las venas inominadas y la vena cava superior; no se intentó el cateterismo superselectivo de las pequeñas venas del cuello y del mediastino. Las reoperaciones estuvieron a cargo de cuatro cirujanos, quienes practicaron 1, 2, 13 y 13 de las reoperaciones, respectivamente. En la totalidad de los pacientes se registraron ascensos en los niveles de parathormona; en promedio, el gradiente entre el valor y el mínimo fue de alrededor de 5. En la cercanía de los sitios de ascenso se encontró tejido paratiroideo patológico en todos los 27 pacientes. En dos no se halló tejido paratiroideo y ellos permanecieron hiperparatiroideos en el postoperatorio; éstos habían sido tratados por el cirujano que practicó sólo dos de las reoperaciones. Cuando el ascenso en el nivel fue registrado en la vena inominada izquierda, no nos fue posible diferenciar si se trataba de adenomas mediastinales o cervicales bajos. Ningún paciente desarrolló hipoparatiroidismo. Con el fin de evitar esta complicación, se realizó autotrasplante de tejido paratiroideo patológico en la grasa subcutánea del abdomen en 9 pacientes. No se registraron parálisis del nervio laríngeo recurrente. El advenimiento de métodos confiables de determinación de hormona paratiroidea puede hacer innecesario el cateterismo selectivo para la localización de glándulas paratiroideas residuales en pacientes con hiperparatiroidìsmo persistente.
    Notes: Abstract A success rate of about 90% has been achieved after primary operations for hyperparathyroidism, compared with 60% to 80% in most series of secondary operations. The present reoperative series involved 29 patients who underwent venous catheterization with blood sampling for the determination of intact parathyroid hormone before undergoing repeat parathyroid surgery. Blood samples were taken from the internal jugular veins, innominate veins, and superior caval vein. No attempt was made to perform superselective catheterization of the small neck and mediastinal veins. The reoperations were done by four surgeons who did 1, 2, 13, and 13 of the reoperations, respectively. In all patients, distinct step-ups in parathyroid hormone concentrations were found. On average, the gradient between the highest and lowest value was about 5. Close to the location of the step-ups, diseased parathyroid tissue was found in 27 of the patients. In two cases no parathyroid tissue was found, and these patients remained hyperparathyroid postoperatively. They had been treated by the surgeon who did only two of the operations. When the step-up was observed in the left innominate vein, we could not differentiate mediastinal from low cervical adenomas. No patient developed hypoparathyroidism. To avoid this complication, autotransplantation of diseased parathyroid tissue into the abdominal subcutaneous fat was done in nine patients. No case of recurrent laryngeal nerve paralysis occurred. The introduction of reliable assays for the analysis of parathyroid hormone can make selective catheterization unnecessary when localizing remaining parathyroid glands in patients with persistent hyperparathyroidism.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Bien que le nombre total de patients opérés pour hyperparathyroÏdie ait augmenté au cours de ces dernières années, le nombre annuel de cas d'hypercalcémie reste inchangé. Les calcémies les plus sévères se voient en cas de cancer de la parathyroÏde et d'hyperplasie parathyroÏdienne à cellules claires. L'hypercalcémie grave en rapport avec une hyperparathyroÏdie est plus fréquente chez le sujet agé, mais elle se voit aussi chez la femme enceinte et chez le sujet jeune. Occasionellement, le patient avec hyperparathyroÏdie peut avoir une autre cause d'hypercalcémie et ne redevient bien évidemment normocalcémique qu'après le traitement des deux causes. L'hypercalcémie grave doit Être soupÇonnée dès l'examen clinique. Le diagnostic définitif repose sur le dosage de la calcémie et de l'hormone parathyroÏdienne complète. Le traitement de base de l'hypercalcémie est de réhydrater le patient et compenser les pertes sodiques. Nous avons trouvé que les bisphosponates étaient efficaces pour diminuer la calcémie. Le traitement définitif d'une hypercalcémie en rapport avec une hyperparathyroÏdie est la chirurgie. Si besoin, un patient fragile présentant une hyperparathyroÏdie peut Être opéré sous anésthésie locale. En cas de métastases d'un cancer de la parathyroÏde, la réintervention chirurgicale peut parfois améliorer le pronostic. Le cathetérisme veineux sélectif permettant le dasage de l'hormone parathyroÏde complète est utile pour la localisation de récidive.
    Abstract: Resumen En los Últimos años se ha incrementado en forma notoria el nÚmero total de pacientes operados por hiperparatiroidismo, pero el nÚmero anual de casos con hipercalcemia sustancial ha permanecido estable. El carcinoma paratiroideo y la hiperplasia de células claras causan hipercalcemia más pronunciada que otros tipos de hiperparatiroidismo. La hipercalcemia grave por hiperparatiroidismo es más comÚn en los ancianos, pero puede ocurrir en el embarazo y también en niños. Ocasionalmente un paciente hiperparatiroideo puede también tener otra causa de hipercalcemia y no habrá de convertir a normocalcemia hasta cuando sea tratado en forma adecuado para las dos entidades causantes. La sospecha de hipercalcemia grave debe surgir como consecuencia de sus características clínicas. La determinación de las concetraciones del calcio sérico y de la hormona paratiroidea intacta establece el diagnóstico. El tratamiento básico de la hipercalcemia grave consiste en rehidratar al paciente y restablecer las pérdidas de sodio. Hemos encontrado que los biofosfonatos son muy eficaces en reducir adicionalmente el nivel del calcio sérico. El tratamiento definitivo de la hipercalcemia grave por hiperparatiroidismo es la cirugía. Como Último recurso, pacientes muy frágiles con hiperparatiroidismo grave pueden ser operados bajo anestesia local. Las operaciones repetidas pueden mejorar el pronóstico de pacientes con carcinoma paratiroideo metastásico. El cateterismo venoso selective con muestreo sanguíneo para determinación de hormona paratiroidea intacta puede ser Útil en la localización de enfermedad recurrente.
    Notes: Abstract During recent years the total number of patients undergoing surgery for hyperparathyroidism has markedly increased, but the annual number of cases with substantial hypercalcemia has remained unchanged. Parathyroid carcinoma and water clear cell hyperplasia cause more severe hypercalcemia than other kinds of hyperparathyroidism. Grave hypercalcemia due to hyperparathyroidism is more common among the elderly, but can occur during pregnancy and also among children. Occasionally, a patient with hyperparathyroidism can also have another cause of the hypercalcemia and does not become normocalcemic until adequately treated for both. The suspicion of grave hypercalcemia should arise due to its clinical features. Determination of serum calcium and intact parathyroid hormone concentrations establishes the diagnosis. The basic treatment of grave hypercalcemia is to rehydrate the patient and to restore the sodium losses. To further lower the serum calcium value we have found bisphosphonates to be very effective. The definitive treatment of grave hypercalcemia due to hyperparathyroidism is surgery. As a last resort, frail patients with grave hyperparathyroidism can undergo surgery under local anesthesia. Repeat operations can improve the prognosis of patients with metastatic parathyroid carcinoma. Selective venous catheterization with blood sampling for determination of intact parathyroid hormone can be helpful in localizing recurrent disease.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-2072
    Keywords: Alcohol ; Withdrawal ; Dopamine receptors ; Growth hormone ; Apomorphine test
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Dopamine (DA) sensitivity, assessed through maximal growth hormone (GH) response to stimulation by apomorphine (APO) (0.18–0.24 mg iv) was studied in 16 chronic alcoholics newly admitted after a period of heavy alcohol intake. Repeated hormonal tests were thereafter performed during a 2-month period under strictly controlled conditions to avoid relapse into alcohol consumption. Eight healthy volunteers with alcohol consumption slightly less than that of the general population were used as controls. It was found that DA sensitivity in the early abstinence phase was higher than later in the 2-month recovery period but not significantly different from control values. The relatively higher DA sensitivity in the early abstinence phase might be responsible for a lower threshold for psychotic symptoms and neuroleptic-induced extrapyramidal side effects. The results of this study give further evidence of a prolonged recovery phase after heavy alcohol intake.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-2568
    Keywords: vitamin B12 ; aged ; population study ; atrophic gastritis ; postgastrectomy state ; megaloblastic anemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We examined causes and hematological consequences of low serum cobalamin (vitamin B 12)concentration in two representative population samples of 70- year-old (N=293) and 75- year- old subjects (N=486). Subjects with values below 130 pmol/liter (4.8% and 5.6%, respectively) were investigated with Schilling test, upper gastrointestinal endoscopy, determination of serum gastrin and group I pepsinogens, and bone marrow examination. Gastrointestinal abnormalities of etiologic significance were found in 26 of the 32 examined subjects: atrophy of the gastric body mucosa (N=16, with pernicious anemia in six), partial gastrectomy (N=6), and intestinal malabsorption (N=4). Megaloblastic hematopoiesis was found in 10 individuals, four of whom had macrocytic anemia. Our results indicate that low serum cobalamin concentration in the elderly is usually a consequence of disease rather than of high age per se and that gastric mucosal atrophy is a major etiologic factor.
    Type of Medium: Electronic Resource
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