|
|
|
| Registros recuperados: 11 | |
|
|
| Oliveira,U.E.M.; Ohe,M.N.; Santos,R.O.; Cervantes,O.; Abrahão,M.; Lazaretti-Castro,M.; Vieira,J.G.H.; Hauache,O.M.. |
| Primary hyperparathyroidism is an endocrine disorder with variable clinical expression, frequently presenting as asymptomatic hypercalcemia in Western countries but still predominantly as a symptomatic disease in developing countries. The objective of this retrospective study was to describe the diagnostic presentation profile, parathyroidectomy indication and post-surgical bone mineral density follow-up of patients with primary hyperparathyroidism seen at a university hospital. We found 115 patients (92 women, median age 56 years) with primary hyperparathyroidism diagnosed during the last 20 years. We defined symptomatic patients based on the presence of any classical symptom affecting bone, kidney or the neuromuscular system. Surgical criteria followed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Primary hyperparathyroidism; Hypercalcemia; Clinical presentation; Parathyroidectomy; Bone mineral density. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000400010 |
| |
|
|
| Barros,E.R.; Kasamatsu,T.S.; Ramalho,A.C.; Hauache,O.M.; Vieira,J.G.H.; Lazaretti-Castro,M.. |
| Osteoporosis is a multifactorial disease with great impact on morbidity and mortality mainly in postmenopausal women. Although it is recognized that factors related to life-style and habits may influence bone mass formation leading to greater or lower bone mass, more than 85% of the variation in bone mineral density (BMD) is genetically determined. The collagen type I alpha 1 (COLIA1) gene is a possible risk factor for osteoporosis. We studied a population of 220 young women from the city of São Paulo, Brazil, with respect to BMD and its correlation with both COLIA1 genotype and clinical aspects. The distribution of COLIA1 genotype SS, Ss and ss in the population studied was 73.6, 24.1 and 2.3%, respectively. No association between these genotypes and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: COLIA1; Bone mineral density; Risk factors; Polymorphism; Osteoporosis. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000800005 |
| |
|
|
| Ohe,M.N.; Santos,R.O.; Barros,E.R.; Lage,A.; Kunii,I.S.; Abrahão,M.; Cervantes,O.; Hauache,O.M.; Lazaretti-Castro,M.; Vieira,J.G.H.. |
| In contrast to most developed countries, most patients with primary hyperparathyroidism in Brazil are still symptomatic at diagnosis. However, we have been observing a change in this pattern, especially in the last few years. We evaluated 104 patients, 77 females and 27 males aged 11-79 years (mean: 54.4 years), diagnosed between 1985 and 2002 at a University Hospital. Diagnosis was made on the basis of clinical findings and of high total and/or ionized calcium levels, high or inappropriate levels of intact parathyroid hormone and of surgical findings in 80 patients. Patients were divided into three groups, i.e., patients diagnosed from 1985 to 1989, patients diagnosed from 1990 to 1994, and patients diagnosed from 1995 to 2002. The number of new cases... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Primary hyperparathyroidism; Hypercalcemia; Clinical presentation; Asymptomatic primary hyperparathyroidism; Parathyroid hormone; Hyperparathyroidism. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000900013 |
| |
|
| |
|
|
| Ramalho,A.C.; Lazaretti-Castro,M.; Hauache,O.; Kasamatsu,T.; Brandão,C.; Reis,A.F.; Takata,E.; Cafalli,F.; Tavares,F.; Gimeno,S.G.A.; Vieira,J.G.H.. |
| Fractures are the feared consequences of osteoporosis and fractures of the proximal femur (FPF) are those that involve the highest morbidity and mortality. Thus far, evaluation of bone mineral density (BMD) is the best way to determine the risk of fracture. Genetic inheritance, in turn, is one of the major determinants of BMD. A correlation between different genotypes of the vitamin D receptor (VDR) and BMD has been recently reported. On this basis, we decided to determine the importance of the determination of VDR genotype in the presence of an osteoporotic FPF in a Brazilian population. We studied three groups: group I consisted of 73 elderly subjects older than 65 years (78.5 ± 7.2 years) hospitalized for nonpathological FPF; group II consisted of 50... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Osteoporosis; Fracture of proximal femur (FPF); Vitamin D receptor polymorphism. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000700006 |
| |
|
| |
|
|
| Gomes,S.A.; Lage,A.; Lazaretti-Castro,M.; Vieira,J.G.H.; Heilberg,I.P.. |
| the response to an oral calcium load test was assessed in 17 hypercalciuric nephrolithiasis patients who presented elevated parathyroid hormone (PTH) irrespective of the ionized calcium (sCa2+) levels. Blood samples were collected at baseline (0 min) and at 60 and 180 min after 1 g calcium load for serum PTH, total calcium, sCa2+, and 1.25(OH)2D3 determinations. According to the sCa2+ level at baseline, patients were classified as normocalcemic (N = 9) or hypercalcemic (N = 8). Six healthy subjects were also evaluated as controls. Bone mineral density was reduced in 14/17 patients. In the normocalcemic group, mean PTH levels at 0, 60 and 180 min (95 ± 76, 56 ± 40, 57 ± 45 pg/ml, respectively) did not differ from the hypercalcemic group (130 ± 75, 68 ± 35,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Parathyroid hormone; Calcium; Hyperparathyroidism; Hypercalciuria; Nephrolithiasis; Bone mineral density. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000900013 |
| |
|
|
| Brandão,C.M.A.; Lombardi,M.T.; Nishida,S.K.; Hauache,O.M.; Vieira,J.G.H.. |
| Data obtained during the past five years have indicated that there are important age- and gender-based differences in the regulation and action of leptin in humans. To study the physiological changes of leptin during puberty in both sexes, and its relationship with body composition and sexual maturation, we measured leptin concentrations in 175 healthy adolescents (80 girls, 95 boys, 10-18 years of age), representing all pubertal stages. We excluded individuals with a body mass index (BMI) below the 5thor above the 95th percentile relative to age. Serum concentrations of leptin were determined by a monoclonal antibody-based immunofluorimetric assay, developed in our laboratory. Body composition was determined by dual-energy X-ray absorptiometry. Pubertal... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Leptin; Pubertal development; Body composition. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001000003 |
| |
|
|
| Pardini,V.C.; Velho,G.; Reis,R.; Purisch,S.; Blanché,H.; Vieira,J.G.H.; Moisés,R.C.S.. |
| Glucokinase (GCK) is an enzyme that regulates insulin secretion, keeping glucose levels within a narrow range. Mutations in the glucokinase gene cause a rare form of diabetes called maturity-onset diabetes of the young (MODY). An early onset (less than 25 years), autosomal dominant inheritance and low insulin secretion stimulated by glucose characterize MODY patients. Specific insulin and proinsulin were measured in serum by immunofluorimetric assays (IFMA) during a 75-g oral glucose tolerance test (OGTT). Two kindreds (SA and LZ) were studied and compared to non-diabetic unrelated individuals (control group 1) matched for age and body mass index (BMI). In one kindred, some of these subjects were also obese (BMI >26 kg/m2), and other family members... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Proinsulin; Insulin; MODY; Glucokinase; Obesity. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000400008 |
| |
|
|
| Ohe,M.N.; Santos,R.O.; Kunii,I.S.; Carvalho,A.B.; Abrahão,M.; Cervantes,O.; Lazaretti-Castro,M.; Vieira,J.G.H.. |
| Intraoperative parathyroid hormone (IO-PTH) measurements have been proposed to improve operative success rates in primary, secondary and tertiary hyperparathyroidism (PHP, SHP and THP). Thirty-one patients requiring parathyroidectomy were evaluated retrospectively from June 2000 to January 2002. Sixteen had PHP, 7 SHP and 8 THP. Serum samples were taken at times 0 (before resection), 10, 20 and 30 min after resection of each abnormal parathyroid gland. Samples from 28 patients were frozen at -70ºC for subsequent tests, whereas samples from three patients were tested while surgery was being performed. IO-PTH was measured using the Elecsys immunochemiluminometric assay (Roche, Mannheim, Germany). The time necessary to perform the assay was 9 min. All samples... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Parathyroid hormone; Intraoperative PTH measurement; Primary hyperparathyroidism; Secondary hyperparathyroidism; Tertiary hyperparathyroidism. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000600006 |
| |
|
| |
| Registros recuperados: 11 | |
|
|
|
