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Usefulness of a rapid immunometric assay for intraoperative parathyroid hormone measurements
Provedor de dados: 56
Autores: 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

Prevalence of low trauma fractures in long-term kidney transplant patients with preserved renal function
Provedor de dados: 56
Autores: Braga Júnior,J.W.R.; Neves,R.M.S.; Pinheiro,M.M.; Frisoli Júnior,A.; Castro,C.H.M.; Szejnfeld,V.L.; Carvalho,A.B.
We evaluated the prevalence of low bone mineral density (BMD) and osteoporotic fractures in kidney transplantation (KT) patients and determined risk factors associated with osteoporotic fractures. The study was conducted on 191 patients (94 men and 97 women) with first KT for 3 years or more presenting stable and preserved renal function (serum creatinine levels lower than 2.5 mg/dl). KT patients were on immunosuppressive therapy and the cumulative doses of these drugs were also evaluated. BMD was determined by dual-energy X-ray absorptiometry at multiple sites (spine, femur and total body). Quantitative ultrasound of the calcaneus (broadband ultrasound attenuation, speed of sound, and stiffness index, SI) was also performed. Twenty-four percent (46) of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Kidney transplantation; Bone density; Quantitative ultrasound; Osteoporosis; Fracture.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000100016

An ultrasound and histomorphological analysis of experimental liver cirrhosis in rats
Provedor de dados: 56
Autores: Dias,J.V.; Paredes,B.D.; Mesquita,L.F.Q.; Carvalho,A.B.; Kozlowski,E.O.; Lessa,A.S.; Takiya,C.M.; Resende,C.M.C.; Coelho,H.S.M.; Campos-de-Carvalho,A.C.; Rezende,G.F.M.; Goldenberg,R.C.S.
We investigated whether liver injury by dual exposure to ethanol and carbon tetrachloride (EtOH + CCl4) for 15 weeks would persist after hepatotoxic agents were removed (EtOH + CCl4/8wR). After 15 weeks of hepatic injury with ethanol (5.5%, m/v) and carbon tetrachloride (0.05, mL/kg, ip), 5 of 11 female Wistar rats were sacrificed. The other 6 rats were maintained for an additional 8 weeks without hepatotoxic agents. Ultrasonography showed increased liver echogenicity and dilation of portal vein caliber in both groups (EtOH + CCl4: 0.22 ± 0.01 cm, P &lt; 0.001; EtOH + CCl4/8wR: 0.21 ± 0.02 cm, P &lt; 0.01) vs control (0.16 ± 0.02 cm). Histopathology showed regenerative nodules in both experimental groups. Histomorphometry revealed increased fibrosis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rat; Cirrhosis; Collagen; Ultrasound; CCl4; Ethanol.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001100008

Nutritional status of hemodialysis patients with secondary hyperparathyroidism
Provedor de dados: 56
Autores: Rezende,L.T.T.; Cuppari,L.; Carvalho,A.B.; Canziani,M.E.F.; Manfredi,S.R.; Cendoroglo,M.; Sigulem,D.M.; Draibe,S.A.
The repercussions of secondary hyperparathyroidism on the nutritional status of chronic renal failure patients have not been well established. Therefore, the aim of this study was to compare the nutritional indices of hemodialysis patients with and without secondary hyperparathyroidism. Sixteen hemodialysis patients with serum parathyroid hormone (PTH) levels higher than 420 pg/ml (hyperparathyroidism group) were matched for gender, age and length of dialysis treatment to 16 patients with serum PTH between 64 and 290 pg/ml (control group). The following parameters were assessed: anthropometric indices (body mass index, skinfold thickness, midarm muscle circumference and body fat), 4-day food diaries, protein catabolic rate, biochemical indices (blood urea...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutritional assessment; Parathormone; Chronic renal failure; Secondary hyperparathyroidism.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001100007