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1.
Transplant Proc ; 48(7): 2338-2340, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27742292

RESUMEN

BACKGROUND: In October 2008, the Brazilian Ministry of Health authorized listing of downstaged hepatocellular carcinoma (HCC) for liver transplantation, according to a standardized protocol. The aim of this study was to compare the outcome of patients submitted to liver transplantation after downstaging of HCC with the results other standard indications in Brazil. METHODS: We conducted a retrospective analysis of 2,667 adult 1st elective deceased-donor liver transplantations registered at the database of the Transplant Notification Center of the São Paulo State Health Secretariat. These cases are classified into 3 groups: "cirrhosis," including 1,709 patients transplanted because of end-stage liver disease; "Milan-HCC," including 873 HCC patients initially meeting the Milan criteria; and "downstaging" group, including 85 HCC patients submitted to tumor downstaging to the Milan criteria before liver transplantation. RESULTS: One-, 3-, 5-, and 6-year patients survivals were, respectively, 82.7%, 72.0%, 66.1%, and 66.1%, in the "downstaging" group and 76.7%, 68.4%, 63.9%, and 63.5% in the "Milan-HCC" group (P = .483). At the same time intervals, patient survivals were 67.8%, 62.9%, 60.9%, and 60.2% in the "cirrhosis" group. These probabilities were significantly lower than those of both "downstaging" (P = .047) and "Milan-HCC" (P = .001) groups. CONCLUSIONS: Patients submitted to liver transplantation after downstaging of HCC, according to a Brazilian selection protocol, present long-term outcomes similar to HCC patients initially within the Milan criteria and better survival than recipients with end-stage liver disease.


Asunto(s)
Carcinoma Hepatocelular/cirugía , Neoplasias Hepáticas/cirugía , Trasplante de Hígado/mortalidad , Adulto , Brasil , Carcinoma Hepatocelular/patología , Femenino , Humanos , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Selección de Paciente , Estudios Retrospectivos , Resultado del Tratamiento
2.
Rheumatology (Oxford) ; 46(6): 994-8, 2007 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-17384176

RESUMEN

OBJECTIVE: To evaluate: (i) a correct equivalence ratio of clinical efficacy between low-dose deflazacort (DFZ) and methyl prednisolone (MP); and (ii) bone metabolic effects of low-dose DFZ and MP in the treatment of male RA and PsA. METHODS: A total of 21 male patients with active RA or PsA, naive to steroid treatment were chosen for the study. Group I: 10 patients treated for 6 months with DFZ 7.5 mg, calcium, cholecalciferol and a DMARD; for the following 6 months with MP 4 mg, calcium, cholecalciferol and a DMARD. Group II: 11 patients treated for 6 months with MP 4 mg, calcium, cholecalciferol and a DMARD; for the following 6 months with DFZ 7.5 mg, calcium, cholecalciferol and a DMARD. At day 0, 90, 180, 240 and 360 evaluation of ACR improvement criteria; a blood sample for total and bone-specific ALP, calcium, phosphorus, PTH, SHBG, estradiol, ACTH, osteocalcin, LH, OPG; a sample of urine for calcium, phosphorus, creatinine and DPD. RESULTS: 13/21 patients (6/10 Group I; 7/11 Group II) reached ACR 20 at 6 months; 14/21 (7/10 Group I, 7/10 Group II) at 12 months. Only at the third month we observed in Group II vs Group I a reduction of OPG (24% vs 6%, P = n.s.); ALP (P < 0.001) and osteocalcin (P = 0.006) decreased in both groups from the third month; DPD decreased in both groups only from the sixth month (P = 0.002). CONCLUSIONS: The correct equivalence ratio of DFZ to MP is 1.875:1, and of DFZ to prednisolone 1.5:1. We found a relative prevalence of bone resorption compared to bone formation in the first 6 months of treatment. The trend of OPG requires further investigation.


Asunto(s)
Artritis Psoriásica/tratamiento farmacológico , Artritis Reumatoide/tratamiento farmacológico , Glucocorticoides/uso terapéutico , Metilprednisolona/uso terapéutico , Osteoporosis/inducido químicamente , Pregnenodionas/uso terapéutico , Adulto , Anciano , Antiinflamatorios/efectos adversos , Antiinflamatorios/uso terapéutico , Antirreumáticos/efectos adversos , Antirreumáticos/uso terapéutico , Estudios Cruzados , Esquema de Medicación , Quimioterapia Combinada , Glucocorticoides/efectos adversos , Humanos , Inmunosupresores/efectos adversos , Inmunosupresores/uso terapéutico , Masculino , Metilprednisolona/efectos adversos , Persona de Mediana Edad , Proyectos Piloto , Pregnenodionas/efectos adversos , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
3.
Rheumatology (Oxford) ; 44(10): 1255-62, 2005 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15998634

RESUMEN

OBJECTIVE: Extracellular fibrinolysis, controlled by the cell-associated fibrinolytic system (urokinase plasminogen activator, uPA; uPA receptor, uPAR; plasminogen activator inhibitor type-1, PAI-1), is involved in cartilage damage generation and in rheumatoid arthritis (RA) synovitis. Since steroids reduce the rate of radiological progression of RA, we planned to evaluate in healthy and RA synoviocytes the effects of the steroid deflazacort on uPA, uPAR and PAI-1 expression, and subsequent phenotypic modifications in terms of uPA/uPAR-dependent invasion and proliferation. METHODS: uPA, uPAR and PAI-1 levels were studied by ELISA, RT-PCR (uPAR) and zymography (uPA) in synoviocytes from four RA patients and four healthy controls. Chemoinvasion was assessed by the Boyden chamber invasion assay, using Matrigel as the invasion substrate. Proliferation was evaluated by cell counting. Both invasion and proliferation were measured upon treatment with deflazacort 5 muM with or without parallel stimulation with uPA 500 ng/ml or in the presence of monoclonal anti-uPA and anti-uPAR antibodies. RESULTS: Invasion and proliferation of RA synoviocytes require a proper functional balance of the fibrinolytic system. Both deflazacort and monoclonal antibodies against uPA and uPAR reduced expression and activity of the system, thus inhibiting invasion and proliferation. In RA synoviocytes, deflazacort induced higher PAI-1 and lower uPA and uPAR levels, as well as a decrease in uPA enzymatic activity. The levels of uPAR mRNA were concomitantly reduced, as was uPA-induced chemoinvasion. All these effects were also shown in controls, though to a lesser extent. CONCLUSIONS: Deflazacort might control RA synovial proliferation and invasion by differential modulation of single members of the fibrinolytic system.


Asunto(s)
Artritis Reumatoide/patología , Fibrinólisis/efectos de los fármacos , Pregnenodionas/farmacología , Membrana Sinovial/efectos de los fármacos , Activador de Plasminógeno de Tipo Uroquinasa/fisiología , Adulto , Antirreumáticos/farmacología , Proliferación Celular , Células Cultivadas , Quimiotaxis/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Femenino , Regulación de la Expresión Génica/efectos de los fármacos , Humanos , Masculino , Persona de Mediana Edad , Inhibidor 1 de Activador Plasminogénico/metabolismo , ARN Mensajero/genética , Receptores de Superficie Celular/genética , Receptores de Superficie Celular/metabolismo , Receptores del Activador de Plasminógeno Tipo Uroquinasa , Membrana Sinovial/metabolismo , Membrana Sinovial/patología
4.
Clin Exp Rheumatol ; 20(3): 373-8, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-12102474

RESUMEN

OBJECTIVE: In 1996 we found by serendipity that 2 patients with rheumatoid arthritis (RA) who were taking clarithromycin (CM) to eradicate Helicobacter pylori experienced a regression of their RA symptoms. Following this observation, we tested the hypothesis that this reduction in symptoms could have been caused by CM administration. METHODS: We performed a 6-month, open, uncontrolled pilot study on 18 patients (14 females and 4 males, mean age 62 yrs.) with RA who had previously received DMARDs (mean 2.6) and discontinued the treatment at least one month earlier because lack of efficacy or severe side effects. Patients were treated with CM at the dose of 500 mg twice per day for the first 10 days, followed by a daily maintenance dose of 250 mg twice per day. RESULTS: 4/18 patients did not complete the treatment, 2/18 were not responsive to the treatment and 2/18 discontinued the treatment. Following ACR criteria the improvement was: 10 patients ACR 20; 6 patients ACR 50; and 2 patients ACR 70. The remaining 4 patients did not reach ACR 20 since either the number of tender or swollen joints was not to the level required. Reductions in PGE2 and soluble phospholipase A2 plasma levels were closely related to CM plasma levels. CONCLUSIONS: Ourfindings suggest that CM treatment can be beneficial in those patients who are not responsive to or cannot tolerate DMARDs. No definitive conclusions can be drawn based on the present study, due to the small sample size involved.


Asunto(s)
Antibacterianos/administración & dosificación , Artritis Reumatoide/tratamiento farmacológico , Claritromicina/administración & dosificación , Adulto , Antirreumáticos/efectos adversos , Dinoprostona/sangre , Femenino , Humanos , Masculino , Pacientes Desistentes del Tratamiento , Fosfolipasas A/sangre , Fosfolipasas A2 , Proyectos Piloto , Resultado del Tratamiento
5.
Acta Diabetol ; 36(1-2): 61-5, 1999 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10436254

RESUMEN

In the present study we assessed and compared the effectiveness and safety of preconstituted, fixed, combinations of low-dose glyburide plus metformin with higher-dose glyburide monotherapy in patients with type 2 diabetes. This randomized, double-blind, cross-over study comprised 40 patients. After a 30-day run-in period of dietary treatment, patients received combined glyburide (5, 7.5 or 10 mg/day) and metformin (800, 1,200 or 1,600 mg/day) as preconstitued, fixed combinations, or glyburide alone (5, 10 or 15 mg/day). The dose was increased stepwise so as to have 1 (T1), 2 (T2) and 3 (T3) months of treatment for any given regimen (6 months in total). After 2 weeks of washout (T4), the groups were then crossed over (T5, T6, T7 periods). Body weight, fasting plasma glucose, HbA(1c), blood lactate, total cholesterol and HDL-cholesterol, and triglycerides were measured at the beginning and end of T1 and T5, and end of T2, T3, T6 and T7; postprandial plasma glucose, fasting and postprandial plasma insulin and C-peptide were evaluated at the beginning of T1 and T5, and end of T3 and T7. At these latter time points additional assessments included routine clinical chemistry measurements, ECG, and ophthalmoscopic examination. Statistical analysis was performed by the paired Student's t-test and analysis of variance for cross-over studies. Thirty-three patients completed the study. Fasting plasma glucose, postprandial plasma glucose and HbA(1c) levels improved significantly during combined treatment with glyburide at lower doses plus metformin. This effect was achieved without any major change of insulin and C-peptide concentrations. Circulating lactate concentrations increased during the regimen including metformin, but they remained well within the reference values for normal subjects. Plasma total cholesterol and triglycerides levels remained substantielly unchanged throughout the study, whereas HDL-cholesterol concentrations increased slightly, but significantly, with glyburide plus metformin therapy. Routine clinical chemistry measurements, ECG and ophthalmoscopic examinations did not change during the study. These results demonstrate that improved metabolic control can be achieved with preconstituted, fixed combinations of low-dose glyburide plus metformin in patients with type 2 diabetes, compared to higher doses of the sulphonylurea alone.


Asunto(s)
Diabetes Mellitus Tipo 2/tratamiento farmacológico , Gliburida/uso terapéutico , Hipoglucemiantes/uso terapéutico , Metformina/uso terapéutico , Glucemia/efectos de los fármacos , Glucemia/metabolismo , Peso Corporal/efectos de los fármacos , Péptido C/sangre , Estudios Cruzados , Diabetes Mellitus Tipo 2/sangre , Método Doble Ciego , Combinación de Medicamentos , Ayuno , Femenino , Hemoglobina Glucada/análisis , Humanos , Insulina/sangre , Masculino , Persona de Mediana Edad , Periodo Posprandial , Factores de Tiempo
7.
Eur J Clin Pharmacol ; 48(5): 339-43, 1995.
Artículo en Inglés | MEDLINE | ID: mdl-8641320

RESUMEN

Idrapril is the prototype of a new class of ACE inhibitors, characterised by the presence of a hydroxdmic group. Six untreated in-patients with essential hypertension were given single oral doses of the calcium salt of idrapril, idrapril calcium (200 mg) and placebo according to a double blind, randomised experimental design. Supine and upright blood pressure, heart rate, plasma idrapril serum UCE, active renin and angiotensin II were measured at timed intervals for 24 hours after dosing. Plasma idrapril reached a peak after 2 hours (3.01 microgm x ml(-1)), and by 12 hours the compound had almost disappeared (67 ng x ml(-1)). Derived t1/2 was 1.4-2.2 h. ACE activity was suppressed [from 77.9 to 3.3 after 2 hours and 11.8 after 12 hours nmol(-1) x min(-1) x ml] and angiotensin II production inhibited [from 8.8 to 3.1 (after 1 hour) and 7.5 (after 24 hours) pg x ml(-1)]. Compared to placebo, idrapril calcium significantly lowered both supine blood pressure starting at 4 hours (idrapril calcium 140/93 mmHg; placebo 157/101 mmHg; placebo 147/100 mmHg), and upright blood pressure starting at 3 hours (idrapril calcium 135/95 mmHg; placebo 147/100 mmHg) up to 24 hours (idrapril calcium 132/92 mmHg; placebo 145/100 mmHg). Idrapril calcium appears to be an effective ACE inhibitor in essential hypertension, with a hypotensive action for up to 24 h.


Asunto(s)
Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Ácidos Ciclohexanocarboxílicos/uso terapéutico , Hemodinámica/efectos de los fármacos , Hidroxilaminas/uso terapéutico , Hipertensión/tratamiento farmacológico , Absorción , Administración Oral , Adulto , Angiotensina II/sangre , Inhibidores de la Enzima Convertidora de Angiotensina/efectos adversos , Inhibidores de la Enzima Convertidora de Angiotensina/sangre , Presión Sanguínea/efectos de los fármacos , Estudios Cruzados , Ácidos Ciclohexanocarboxílicos/efectos adversos , Ácidos Ciclohexanocarboxílicos/sangre , Método Doble Ciego , Femenino , Frecuencia Cardíaca/efectos de los fármacos , Humanos , Hidroxilaminas/efectos adversos , Hidroxilaminas/sangre , Masculino , Persona de Mediana Edad , Peptidil-Dipeptidasa A/sangre
8.
J Cardiovasc Pharmacol ; 23 Suppl 5: S62-6, 1994.
Artículo en Inglés | MEDLINE | ID: mdl-7609510

RESUMEN

Isolated systolic hypertension (ISH) is a definite risk factor for cardiovascular complications (i.e., cardiac failure, coronary artery disease, and stroke) independent of diastolic elevation. The prevalence of ISH is estimated to be approximately 15-20% in the population above the age of 60 years, and increases with advancing age. The Systolic Hypertension in the Elderly (SHELL) study is planned to evaluate the efficacy and tolerability of lacidipine, matched with the diuretic chlorthalidone, in treatment of ISH in elderly hypertensive patients (EHP). One hundred fifteen Italian centers will participate in the study. Fifty centers are associated with the Società Italiana di Geriatria Ospedaliera and 65 centers are departments of internal medicine or outpatient clinics for management of hypertension. A total of 4,800 patients will be enrolled in the trial. Two subprojects will consist of periodical echocardiographic evaluation and 24-h ambulatory blood pressure monitoring. The primary end point of the SHELL study is the incidence of cardiovascular and cerebrovascular events in EHP with ISH, treated with either lacidipine or chlorthalidone. In particular, the SHELL trial is intended to determine whether lacidipine treatment will significantly reduce fatal myocardial events and total cardiovascular mortality.


Asunto(s)
Antihipertensivos/uso terapéutico , Dihidropiridinas/uso terapéutico , Hipertensión/tratamiento farmacológico , Anciano , Presión Sanguínea , Monitoreo Ambulatorio de la Presión Arterial , Clortalidona/uso terapéutico , Método Doble Ciego , Ecocardiografía , Femenino , Humanos , Hipertensión/fisiopatología , Italia , Masculino , Persona de Mediana Edad
9.
Semin Thromb Hemost ; 20(3): 281-92, 1994.
Artículo en Inglés | MEDLINE | ID: mdl-7824963

RESUMEN

In the present study, the pharmacokinetics of extractive GAGs used as therapeutic agents have been studied after intravenous and oral administration on volunteers. The use of native or deuterium-labeled compounds, followed by HPLC/MS detection, allowed the quantitation of exogenous heparin and DS as major disaccharide fragments, obtained either by enzymatic or chemical depolymerization. In particular the high level of labeling reached in DS allowed its differentiation from structurally related endogenous species. The estimated plasmatic bioavailability was about 18% for DS. Notwithstanding the impossibility of evaluating the same parameters for heparin species, due to the interferences of endogenous GAGs, the results obtained provided clear evidence of oral availability of heparin and DS through detection and quantitation of structures specifically related to these GAGs. Due to the selectivity of the lyases used, the enzymatic degradation specifically allowed the detection of both DS and heparin species still retaining the original sulfation pattern. Additionally, the chemical degradation could detect the main metabolites of the drugs, consisting of partially to totally desulfated GAGs showing a more or less marked reduction in their molecular weight.


Asunto(s)
Dermatán Sulfato/sangre , Glicosaminoglicanos/farmacocinética , Absorción Intestinal/fisiología , Administración Oral , Cromatografía Líquida de Alta Presión , Estudios Cruzados , Deuterio , Humanos , Inyecciones Intravenosas , Espectrometría de Masas , Valores de Referencia
11.
Recenti Prog Med ; 83(11): 652-3, 1992 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-1287756

RESUMEN

A case of vascular purpura of the lower limbs in a 67 year old man is described. A diagnosis of scurvy was made in consideration of the absence of signs of vasculitis on skin biopsy, the history of a diet extremely poor in vitamin C and the prompt resolution of clinical picture with administration of vitamin C. The authors emphasize the importance of taking into consideration scurvy in the differential diagnosis of vascular purpura: this may spare expensive investigations and a dangerous delay in appropriate therapy.


Asunto(s)
Púrpura/diagnóstico , Escorbuto/diagnóstico , Anciano , Ácido Ascórbico/administración & dosificación , Ácido Ascórbico/uso terapéutico , Diagnóstico Diferencial , Humanos , Pierna/irrigación sanguínea , Masculino , Púrpura/tratamiento farmacológico , Púrpura/etiología , Escorbuto/complicaciones , Escorbuto/tratamiento farmacológico
12.
Recenti Prog Med ; 83(2): 73-6, 1992 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-1502422

RESUMEN

Twelve male patients with absence of pubertal development and hypogonadotropic hypogonadism underwent a contrast-enhanced computed tomography of the sellar region and dynamic endocrine testing consisting of insulin-induced hypoglycemia, GnRH and TRH test. In two patients, clinically indistinguishable from the others, the presence of an empty sella turcica was demonstrated. They also showed, in comparison with patients with normal sellar morphology, an absent prolactin response to hypoglycemia with otherwise normal pituitary function. Empty sella, either due to congenital incompetence of the diaphragma sellae or to pituitary shrinkage due to regressive changes by hemorrhage, infarction and possibly autoimmune phenomena, may rarely be associated with hypogonadotropic hypogonadism.


Asunto(s)
Síndrome de Silla Turca Vacía/diagnóstico , Hipogonadismo/diagnóstico , Prolactina/metabolismo , Pubertad Tardía/diagnóstico , Adolescente , Adulto , Encéfalo/diagnóstico por imagen , Gonadotropina Coriónica , Síndrome de Silla Turca Vacía/sangre , Hormona Liberadora de Gonadotropina , Humanos , Hipogonadismo/sangre , Insulina , Masculino , Pubertad Tardía/sangre , Testosterona/sangre , Hormona Liberadora de Tirotropina , Tomografía Computarizada por Rayos X
13.
Drugs Exp Clin Res ; 17(10-11): 537-42, 1991.
Artículo en Inglés | MEDLINE | ID: mdl-1668656

RESUMEN

The authors conducted an open crossover trial of the biological activity of single-dose salmon calcitonin (sCT) 100 I.U. by nasal spray versus single-dose sCT 50 I.U. by intramuscular route in six healthy volunteers. The biological activity of the hormone was assessed on the changes in the blood levels of calcium, cAMP and osteocalcin recorded in the 4 h following administration. The increase in plasma cAMP shows that the hormone acts effectively by the nasal route. Further, the lack of statistically significant differences between the two modes of administration in any of the parameters considered demonstrates the bioequivalence of 50 I.U. of sCT i.m. and 100 I.U. of sCT intranasally.


Asunto(s)
Sangre/efectos de los fármacos , Calcitonina/farmacología , Administración Intranasal , Adulto , Calcitonina/administración & dosificación , Calcio/sangre , AMP Cíclico/sangre , Humanos , Inyecciones Intramusculares , Osteocalcina/sangre , Equivalencia Terapéutica
15.
Acta Eur Fertil ; 17(3): 213-6, 1986.
Artículo en Inglés | MEDLINE | ID: mdl-3788430

RESUMEN

Of the many people currently infertile, at least 40% have a problem related solely to the male. Feelings about infertility are based on something deeper and more engrained in a person's character called concepts. Concepts are formed by many forces such as religion, society, the value of others and so on. 61 males, partners of infertile couples, were invited to an interview using as a means of investigation a semistructured questionnaire. We focused our attention on the meaning these men gave to an eventual baby, and on the common opinion about a childless married man either from a social or an individual point of view. According to these criteria, we found that 42% of the people interviewed thought that "people" consider the lack of children as related to male impotence with remarkable differences between the opinion of those who lived in cities and those who did not. As for the solution prospected in the case of incurable sterility, 37% would chose to remain childless, a little lower percentage would choose a sperm bank and only 20% would choose adoption. The results of this research show that among many different aspects, the image of the baby for these applicant fathers is still linked to traditional values.


Asunto(s)
Infertilidad Masculina/psicología , Hombres/psicología , Adopción , Adulto , Actitud , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores Sexuales
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