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1.
Diabetol Int ; 8(2): 218-227, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30603325

RESUMO

We assessed the effects of a 12-week ipragliflozin treatment on the liver-to-spleen attenuation ratio (L/S ratio) using computed tomography and on alanine transaminase (ALT) levels in Japanese patients with type 2 diabetes mellitus (T2DM). Sixty-two patients with T2DM [age, 56 ± 8 years; hemoglobin A1c (HbA1c) levels, 8.1 ± 0.9%; body mass index (BMI), 27.5 ± 3.3 kg/m2] were randomly assigned in a 2:1 ratio to receive ipragliflozin (50 mg/day; ipragliflozin group; n = 40) or continued treatment (control group; n = 22) for 12 weeks. The primary endpoints were changes in ALT levels; the secondary endpoints included changes in the L/S ratio and in the visceral fat area (VFA) and subcutaneous fat area (SFA) before and after 12 weeks of the treatment as assessed by computed tomography. ALT levels (-12.45 vs. +5.82 IU/l, P < 0.001), L/S ratio (+0.07 vs. -0.08, P < 0.001), SFA (-5.8 vs. +13.3 cm2, P < 0.05), and VFA (+1.4 vs. +20.4 cm2, P < 0.05) significantly changed from baseline in the ipragliflozin group compared with the values in the control group. Multiple regression analysis among all subjects revealed that the independent factor contributing to the %ΔALT and %ΔL/C ratio was treatment group alone (ipragliflozin group = 1; control group = 0; ß coefficient = -32.08, P < 0.001 and ß coefficient = 19.98, P < 0.05, respectively). Thus, ipragliflozin may lower ALT levels associated with increased L/S ratios, indicating its potential therapeutic efficacy in T2DM-associated hepatic steatosis.

2.
Pediatr Diabetes ; 18(8): 767-771, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27995726

RESUMO

BACKGROUND: Neonatal diabetes mellitus (NDM) is a monogenic insulin-dependent diabetes that develops within 6 months of age. The progression of hyperglycemia until diagnosis is unknown. Glycemic control indicators at diagnosis are useful to estimate the extent and duration of hyperglycemia. We recently established that age-adjusted glycated albumin (GA) is a useful indicator of glycemic control, regardless of age. OBJECTIVE: To compare the levels of various glycemic control indicators at diagnosis between NDM and other types of insulin-dependent diabetes mellitus. PATIENTS AND METHODS: We included 8 patients with NDM, 8 with fulminant type 1 diabetes (FT1D), and 24 with acute-onset autoimmune type 1 diabetes (T1AD). Plasma glucose, glycated hemoglobin (HbA1c), GA, and age-adjusted GA (calculated as previously reported) were measured and compared. RESULTS: There were no significant differences in the plasma glucose levels of the group of patients with NDM and those with FT1D or T1AD. HbA1c and GA levels in the NDM group were not significantly different from those in the FT1D group, and both indicators were lower than those in the T1AD group. Age-adjusted GA levels in the NDM group did not differ significantly from those in the T1AD group, but were higher than those in the FT1D group. CONCLUSIONS: These findings suggest that the time-course of plasma glucose elevation in NDM until diagnosis is similar to that in T1AD. In addition, the high age-adjusted GA value at diagnosis of NDM indicates that this test is useful for assessing chronic hyperglycemia in NDM.


Assuntos
Diabetes Mellitus Tipo 1/sangue , Adolescente , Adulto , Idoso , Glicemia , Diabetes Mellitus Tipo 1/classificação , Feminino , Hemoglobinas Glicadas/metabolismo , Produtos Finais de Glicação Avançada , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Albumina Sérica/metabolismo , Adulto Jovem , Albumina Sérica Glicada
3.
Lipids Health Dis ; 15: 57, 2016 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-26984517

RESUMO

BACKGROUND: Statins decrease cholesteryl ester transfer protein (CETP) levels, which have been positively associated with hepatic lipid content as well as serum low density lipoproteins-cholesterol (LDL-C) levels. However, the relationship between the CETP status and statin-induced reductions in LDL-C levels has not yet been elucidated in detail. We herein examined the influence of the CETP status on the lipid-reducing effects of pitavastatin in hypercholesterolemic patients with type 2 diabetes mellitus as well as the molecular mechanism underlying pitavastatin-induced modifications in CETP levels. METHODS: Fifty-three patients were treated with 2 mg of pitavastatin for 3 months. Serum levels of LDL-C, small dense (sd) LDL-C, and CETP were measured before and after the pitavastatin treatment. The effects of pitavastatin, T0901317, a specific agonist for liver X receptor (LXR) that reflects hepatic cholesterol contents, and LXR silencing on CETP mRNA expression in HepG2 cells were also examined by a real-time PCR assay. RESULTS: The pitavastatin treatment decreased LDL-C, sdLDL-C, and CETP levels by 39, 42, and 23%, respectively. Despite the absence of a significant association between CETP and LDL-C levels at baseline, baseline CETP levels and its percentage change were an independent positive determinant for the changes observed in LDL-C and sdLDL-C levels. The LXR activation with T0901317 (0.5 µM), an in vitro condition analogous to hepatic cholesterol accumulation, increased CETP mRNA levels in HepG2 cells by approximately 220%, while LXR silencing markedly diminished the increased expression of CETP. Pitavastatin (5 µM) decreased basal CETP mRNA levels by 21%, and this was completely reversed by T0901317. CONCLUSION: Baseline CETP levels may predict the lipid-reducing effects of pitavastatin. Pitavastatin-induced CETP reductions may be partially attributed to decreased LXR activity, predictable by the ensuing decline in hepatic cholesterol synthesis. TRIAL REGISTRATION: UMIN Clinical Trials Registry ID UMIN000019020.


Assuntos
Proteínas de Transferência de Ésteres de Colesterol/sangue , LDL-Colesterol/sangue , Diabetes Mellitus Tipo 2/tratamento farmacológico , Receptores X do Fígado/sangue , Quinolinas/uso terapêutico , Idoso , Proteínas de Transferência de Ésteres de Colesterol/genética , Diabetes Mellitus Tipo 2/sangue , Feminino , Regulação da Expressão Gênica/efeitos dos fármacos , Células Hep G2/efeitos dos fármacos , Humanos , Hidrocarbonetos Fluorados/farmacologia , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Hipercolesterolemia/tratamento farmacológico , Receptores X do Fígado/genética , Receptores X do Fígado/metabolismo , Masculino , Pessoa de Meia-Idade , Quinolinas/farmacologia , Sulfonamidas/farmacologia , Resultado do Tratamento
4.
Diabetes Res Clin Pract ; 111: 66-73, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26589368

RESUMO

AIMS: This open-label, randomized, parallel-group comparative study compared the efficacy of rosuvastatin (5mg/day) and atorvastatin (10mg/day) for reduction of small dense low-density lipoprotein cholesterol (sd LDL-C) levels in Japanese patients with type 2 diabetes mellitus (T2DM). METHODS: Patients with T2DM and hypercholesterolemia with detectable sd LDL-C after receiving 10mg/day atorvastatin for ≥ 24 weeks were randomly assigned to receive rosuvastatin (5mg/day; switched treatment) or atorvastatin (10mg/day; continued treatment) for 12 weeks. The primary endpoints were changes in sd LDL-C levels and sd LDL-C/total LDL-C ratio evaluated using the LipoPhor AS(®) system. RESULTS: There were no significant percent changes from baseline for LDL-C levels between the switched (n=55) and the continued treatment group (n=56). However, the former group exhibited a statistically significant reduction from baseline of sd LDL-C levels, sd LDL-C/total LDL-C ratio compared with the latter group (-3.8 mg/dL vs. -1.4 mg/dL, p=0.014; -2.3% vs. -0.6%, p=0.004, respectively). Multiple regression analysis among all subjects revealed that independent factors contributing to the reduction in sd LDL-C levels were a change in LDL-C (p=0.003) and triglyceride (TG) levels (p=0.006), treatment group (the switched group=1, the continued group=0; standard coefficient=-1.2, p=0.034) and baseline glycated hemoglobin A1c (HbA1c) (p=0.045), respectively. CONCLUSION: Switching from 10mg atorvastatin to 5mg rosuvastatin may be a useful therapeutic option to reduce sd LDL-C levels in Japanese hypercholesterolemic patients with T2DM.


Assuntos
Atorvastatina/uso terapêutico , LDL-Colesterol/sangue , Diabetes Mellitus Tipo 2/tratamento farmacológico , Substituição de Medicamentos , Hipercolesterolemia/tratamento farmacológico , Rosuvastatina Cálcica/uso terapêutico , Adulto , Idoso , LDL-Colesterol/efeitos dos fármacos , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Regulação para Baixo/efeitos dos fármacos , Feminino , Hemoglobinas Glicadas/análise , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Hipercolesterolemia/complicações , Hipercolesterolemia/epidemiologia , Japão/epidemiologia , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
5.
J Clin Transl Endocrinol ; 6: 1-7, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29067237

RESUMO

AIMS: This preliminary randomized, parallel-group comparative study evaluated the efficacy of ipragliflozin for reduction of small dense low-density lipoprotein cholesterol (sd LDL-C) levels in Japanese patients with type 2 diabetes mellitus (T2DM). METHODS: Sixty-two patients with T2DM (age, 56 ± 8 years; hemoglobin A1c levels, 8.1 ± 0.9%; BMI, 27.5 ± 3.3 kg/m2) were randomly assigned in a 2:1 ratio to receive ipragliflozin (50 mg/day) (treatment group; n = 40) or continued treatment (control group; n = 22) for 12 weeks. The primary endpoints were changes in sd LDL-C levels detected using the LipoPhor AS® system; the secondary endpoints included changes in the sd LDL-C/large buoyant LDL-C (lb LDL-C) ratio, a surrogate marker for LDL particle size, and percent changes in routine lipid parameters. RESULTS: The treatment group exhibited a statistically significant reduction from baseline for LDL-C levels (-0.37 mg/dL vs. 14.4 mg/dL, p = 0.038), sd LDL-C levels (-1.28 mg/dL vs. 2.81 mg/dL, p = 0.012), and sd LDL-C/lb LDL-C ratio (-3.20% vs. 4.58%, p = 0.040) compared with the control group. Multiple regression analysis among all subjects revealed change in TG levels (p = 0.011) and LDL-C levels (p = 0.024) as well as change in body weight (p = 0.006) as independent factors contributing to the reduction in sd LDL-C. CONCLUSIONS: Ipragliflozin may have a potential for lowering sd LDL-C levels associated with increasing LDL particle size in Japanese patients with T2DM.

6.
Diabetol Int ; 7(1): 34-41, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30603241

RESUMO

AIM: To determine whether non-high-density lipoprotein cholesterol (non-HDL-C) level, in comparison with low-density lipoprotein cholesterol (LDL-C) level, is useful for predicting the values of various surrogate atherosclerosis markers in Japanese subjects with type 2 diabetes (T2DM). METHODS: Data were retrieved from medical records of 265 subjects with T2DM who underwent laboratory tests to evaluate for atherosclerosis by using the following parameters: brachial-ankle pulse wave velocity, mean and maximum carotid intima-media thickness (mean CIMT and max-CIMT), and ankle-brachial index, with simultaneous fasting blood sampling for routine lipid parameters. RESULTS: In a multiple stepwise regression analysis, non-HDL-C level, but not LDL-C level, positively correlated with max-CIMT (ß coefficient = 0.14, F = 6.84). Stepwise logistic regression analysis revealed that a 0.26 mmol/L (10 mg/dL) increase in non-HDL-C level, but not LDL-C level, was significantly associated with high risk of max-CIMT (≥1.1 mm; odds ratio, 1.096; 95 % confidence interval, 1.003-1.202; p = 0.046). However, in a receiver operating characteristic curve (ROC) analysis, the addition of non-HDL-C level to the three significant independent variables obtained from the stepwise analyses did not significantly increased the area under the ROC curve (from 0.7789 to 0.7864, p = 0.4343). CONCLUSIONS: Non-HDL-C levels may be non-inferior to LDL-C level for the prediction of high-risk max-CIMT in Japanese subjects with T2DM.

7.
Diabetol Int ; 7(3): 308-313, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30603278

RESUMO

AIMS: This study investigated the independent predictors of the serum uric acid (sUA)-lowering effect of low-dose febuxostat, a novel xanthine oxidase inhibitor, in Japanese patients with type 2 diabetes mellitus (T2DM). MATERIALS AND METHODS: Data of 130 T2DM patients who had been taking febuxostat 10 mg once daily for elevated sUA (≥7 mg/dl) for at least 12 weeks were retrieved from medical records. Spearman's rank correlation coefficients were calculated to determine the correlations between sets of two independent continuous variables. Multiple stepwise linear regression analysis was used to determine independent predictors of the percent change of sUA levels after 12 weeks of febuxostat treatment (%ΔsUA). RESULTS: Among all patients, %ΔsUA was significantly correlated with age (ρ = 0.192, P = 0.030) and mean glycated hemoglobin (HbA1c) level (ρ = -0.186, P = 0.036). Multiple stepwise linear regression analysis of all patients revealed that major independent factors contributing to %ΔsUA were mean HbA1c (ß = -3.14, P = 0.022) and mean glycated albumin (ß = -0.743, P = 0.013) levels. CONCLUSIONS: High HbA1c and glycated albumin levels significantly attenuated the sUA-lowering effect of low-dose febuxostat in Japanese patients with T2DM. Further detailed analysis using a larger population is warranted to confirm these findings.

8.
Clin Chim Acta ; 451(Pt B): 297-300, 2015 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-26477482

RESUMO

BACKGROUND: Markedly elevated plasma glucose and relatively low HbA1c compared to plasma glucose is one diagnostic criterion for fulminant type 1 diabetes mellitus (FT1DM). Glycated albumin (GA) is a glycemic control marker that reflects glycemic control in shorter period than HbA1c. This study investigated whether GA is useful for differential diagnosis between FT1DM and acute-onset autoimmune type 1 diabetes mellitus (T1ADM) or not. METHODS: This study included 38 FT1DM patients and 31 T1ADM patients in whom both HbA1c and GA were measured at the time of diagnosis. RESULTS: In FT1DM patients, as compared to T1ADM patients, both HbA1c and GA were significantly lower (HbA1c; 6.6±0.9% vs. 11.7±2.6%, P<0.0001, GA; 22.9±4.8% vs. 44.3±8.3%, P<0.0001). For differential diagnosis between FT1DM and T1ADM, ROC analysis showed that the optimum cut-off value for GA was 33.5% with sensitivity and specificity of 97.4% and 96.8%, respectively, while the optimum cut-off value for HbA1c was 8.7% with sensitivity and specificity of 100% and 83.9%, respectively. CONCLUSIONS: GA also may be useful for the differential diagnosis between FT1DM and T1ADM when the cut-off value can be set at 33.5%.


Assuntos
Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 1/diagnóstico , Albumina Sérica/análise , Diabetes Mellitus Tipo 1/classificação , Diagnóstico Diferencial , Feminino , Produtos Finais de Glicação Avançada , Humanos , Masculino , Pessoa de Meia-Idade , Curva ROC , Albumina Sérica Glicada
9.
World J Gastroenterol ; 21(24): 7427-35, 2015 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-26139988

RESUMO

Nonalcoholic fatty liver disease (NAFLD) is one of the major causes of chronic liver injury. NAFLD includes a wide range of clinical conditions from simple steatosis to nonalcoholic steatohepatitis (NASH), advanced fibrosis, and liver cirrhosis. The histological findings of NASH indicate hepatic steatosis and inflammation with characteristic hepatocyte injury (e.g., ballooning degeneration), as is observed in the patients with alcoholic liver disease. NASH is considered to be a potentially health-threatening disease that can progress to cirrhosis. A liver biopsy remains the most reliable diagnostic method to appropriately diagnose NASH, evaluate the severity of liver fibrosis, and determine the prognosis and optimal treatment. However, this invasive technique is associated with several limitations in routine use, and a number of biomarkers have been developed in order to predict the degree of liver fibrosis. In the present article, we review the current status of noninvasive biomarkers available to estimate liver fibrosis in the patients with NASH. We also discuss our recent findings on the use of the glycated albumin-to-glycated hemoglobin ratio, which is a new index that correlates to various chronic liver diseases, including NASH.


Assuntos
Cirrose Hepática/etiologia , Fígado/metabolismo , Hepatopatia Gordurosa não Alcoólica/complicações , Biomarcadores/sangue , Biópsia , Progressão da Doença , Humanos , Fígado/patologia , Cirrose Hepática/sangue , Cirrose Hepática/diagnóstico , Hepatopatia Gordurosa não Alcoólica/sangue , Hepatopatia Gordurosa não Alcoólica/diagnóstico , Valor Preditivo dos Testes , Prognóstico , Índice de Gravidade de Doença
10.
J Diabetes Investig ; 6(3): 346-53, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25969721

RESUMO

INTRODUCTION: Several studies have shown that statins suppress the progression of diabetic nephropathy. However, few reports have directly compared the renoprotective effects between potent and conventional statins. MATERIALS AND METHODS: Patients with diabetic nephropathy, selected as those with a serum creatinine level of 0.9-1.5 mg/dL and simultaneously having either microalbuminuria or positive proteinuria, were randomly assigned to one of three groups: a conventional diet therapy group, a group given 10 mg of pravastatin and a group given 10 mg of atorvastatin. Renal function was evaluated before and after a 12-month period of therapy. RESULTS: The atorvastatin group had a significant decrease in low-density lipoprotein cholesterol at 3 months and thereafter compared with the other groups. The urinary albumin-to-creatinine ratio significantly decreased in the atorvastatin group; the degree of this decrease was significantly greater than that in the diet therapy group. The kidney function estimated with cystatin C (CysC) and the estimated glomerular filtration rate calculated from CysC were significantly preserved in the atorvastatin group compared with the pravastatin group. In a multivariate regression analysis, the use of atorvastatin was the only explanatory variable for the changes in CysC; this was independent of changes in low-density lipoprotein cholesterol. CONCLUSIONS: Atorvastatin is more effective than pravastatin for the prevention of increase in CysC, and this renoprotective effect was considered to a result of the pleiotropic effect of atorvastatin independent of its lipid-lowering effect. This study was registered with UMIN (no. UMIN 000001774).

11.
Clin Biochem ; 47(18): 279-82, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25218816

RESUMO

OBJECTIVES: We recently reported that glycated albumin (GA) in patients with Cushing's syndrome is low. In the present study, we examined whether serum albumin (SA)-adjusted GA (SAaGA) is an adequate indicator of glycemic control in patients with Cushing's syndrome. DESIGN AND METHODS: We studied 26 patients with Cushing's syndrome (13 patients without diabetes and 13 patients with diabetes). Twenty six non-diabetic subjects and 26 patients with type 2 diabetes mellitus matched for age, sex and BMI were used as the controls. SAaGA was calculated using the regression formula between SA and GA in non-diabetic patients with Cushing's syndrome and non-diabetic subjects. RESULTS: SA showed a significant correlation with GA in non-diabetic patients with Cushing's syndrome and non-diabetic subjects. GA, but not SAaGA, in non-diabetic patients with Cushing's syndrome was significantly lower than that in the non-diabetic controls. Furthermore, the GA/HbA1c ratio, but not the SAaGA/HbA1c ratio, in diabetic patients with Cushing's syndrome was significantly lower than that in the diabetic controls. The measured GA in the patients with Cushing's syndrome was significantly lower than the estimated GA, but there was no difference between SAaGA and the estimated GA. CONCLUSIONS: The present findings suggest that SAaGA is an adequate indicator of the glycemic control in patients with Cushing's syndrome.


Assuntos
Biomarcadores/sangue , Glicemia/metabolismo , Síndrome de Cushing/sangue , Albumina Sérica/metabolismo , Adulto , Índice de Massa Corporal , Síndrome de Cushing/complicações , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Feminino , Hemoglobinas Glicadas/metabolismo , Produtos Finais de Glicação Avançada , Humanos , Masculino , Pessoa de Meia-Idade , Albumina Sérica Glicada
12.
Ann Clin Biochem ; 49(Pt 4): 387-90, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22715293

RESUMO

BACKGROUND: We previously reported that the indicator of glycaemic control, glycated albumin (GA) levels, are low in relation to glycaemia in patients with high alanine aminotransferase (ALT) levels in non-alcoholic fatty liver disease because of chronic inflammation, and that the GA/glycated haemoglobin ratio (G/H ratio) is inversely correlated with hepatic function in patients with chronic liver disease. The severity of liver fibrosis is known to be a good indicator for surveillance, and for determining the prognosis and optimal treatment of non-alcoholic steatohepatitis (NASH). In this study, we aimed to investigate the clinical usefulness of measuring the G/H ratio for predicting the severity of liver fibrosis in patients with NASH. METHODS: The study subjects were 36 patients with histologically diagnosed NASH (19 men, 17 women; mean age 54.8±12.2 years, body mass index 28.3±5.0 kg/m2). The relationships of the G/H ratio to hepatic function tests and fibrosis stage in the liver were investigated. RESULTS: The G/H ratio in patients with NASH was inversely correlated with ALT (P<0.001) and platelet count (P<0.0001). Furthermore, the G/H ratio was positively correlated with the fibrosis stage in liver (P=0.003). CONCLUSIONS: These results suggest that the G/H ratio increases along with the fibrosis stage in patients with NASH.


Assuntos
Albuminas/metabolismo , Fígado Gorduroso/metabolismo , Glucose/metabolismo , Cirrose Hepática/metabolismo , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
13.
J Diabetes Investig ; 3(2): 170-4, 2012 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-24843561

RESUMO

UNLABELLED: Aims/Introduction: The aim of the present study was to assess the independent predictors of the HbA1c-lowering effect of sitagliptin in Japanese type 2 diabetic patients. MATERIALS AND METHODS: Data were retrieved from the medical records of 151 type 2 diabetic patients who had been taking sitagliptin 25 or 50 mg once daily for inadequate glycemic control for at least 12 weeks, with or without other oral hypoglycemic agents. Spearman's rank correlation coefficients were calculated to investigate correlations between two independent continuous variables. Multiple stepwise regression analysis was used to identify independent predictors of reductions in HbA1c levels after 12 weeks of sitagliptin treatment (ΔHbA1c). RESULTS: In all patients combined, Spearman's rank correlation coefficients showed that ΔHbA1c was significantly correlated with baseline HbA1c alone (r = 0.371, P < 0.0001). However, multiple linear regression analysis among all patients using baseline variables revealed that the independent factors contributing to ΔHbA1c, in order of importance, were method of prescribing (P < 0.0001), baseline HbA1c (P < 0.0001), body mass index (BMI; P = 0.004), and duration of diabetes (P = 0.024). CONCLUSIONS: Our analysis may provide novel evidence that increased BMI contributes, in part, to attenuation of the HbA1c-lowering effect of sitagliptin in Japanese type 2 diabetic patients. Analysis of a larger population over a longer period of time is warranted to confirm these findings. (J Diabetes Invest, doi: 10.1111/j.2040-1124.2011.00156.x, 2011).

14.
Diabetes Res Clin Pract ; 94(1): e12-4, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21777990

RESUMO

Glycated albumin (GA) is a new glycemic control indicator. GA/HbA1c ratio in autoimmune acute-onset type 1 diabetes mellitus patients was significantly higher than in type 2 diabetes mellitus patients at the time of diagnosis. This difference might reflect speed of increase in plasma glucose after the onset of diabetes.


Assuntos
Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 1/metabolismo , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/metabolismo , Hemoglobinas Glicadas/metabolismo , Albumina Sérica/metabolismo , Adulto , Cromatografia Líquida de Alta Pressão , Feminino , Produtos Finais de Glicação Avançada , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Albumina Sérica Glicada
15.
Ann Clin Biochem ; 48(Pt 2): 121-5, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20736249

RESUMO

BACKGROUND: Serum 1,5-anhydroglucitol (1,5-AG) is a known marker reflecting recent glycaemic control. In this study, we examined serum 1,5-AG levels in chronic liver disease (CLD) patients with and without diabetes mellitus. METHODS: Eighty patients with CLD were compared with 667 subjects without CLD. Glycaemic control of the CLD patients was evaluated by estimated glycated haemoglobin (HbA(1C)) calculated using the equation by Rohlfing et al. from mean plasma glucose because CLD patients have apparently low HbA(1C). RESULTS: When the study participants were divided into subgroups stratified by HbA(1C) levels, the CLD patients whose estimated HbA(1C) levels were less than 7.0% showed significantly lower 1,5-AG than their counterparts of the control subjects. Stepwise multivariable analysis revealed that estimated HbA(1C) was the significant explanatory variable for 1,5-AG in the CLD patients. However, in the CLD patients with estimated HbA(1C) less than 5.8%, only hepaplastin test was the significant explanatory variable for 1,5-AG. CONCLUSIONS: Serum 1,5-AG levels are low irrespective of plasma glucose levels in the CLD patients with and without diabetes. The CLD patients who had low serum 1,5-AG levels were associated with deteriorated liver function.


Assuntos
Glicemia/metabolismo , Desoxiglucose/sangue , Hepatopatias/sangue , Estudos de Casos e Controles , Doença Crônica , Complicações do Diabetes/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Análise de Regressão
16.
Ann Clin Biochem ; 46(Pt 5): 368-72, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19675058

RESUMO

BACKGROUND: In patients with chronic liver disease (CLD), glycated haemoglobin (HbA(1C)) levels have been shown to be apparently lower than real values, whereas serum glycated albumin (GA) levels are apparently higher. The present study was aimed to examine whether both glycaemic indices are influenced by hepatic function. METHODS: Subjects consisted of 82 patients with CLD. Various indicators for hepatic function as well as HbA(1C) and GA were also measured. Estimated HbA(1C) values were calculated from the mean plasma glucose levels. Two hundred and two type 2 diabetic patients without CLD were studied as controls. RESULTS: Although GA was strongly correlated with HbA(1C) in patients with CLD as well as diabetic patients, GA levels in patients with CLD were relatively higher than those in diabetic patients. In patients with estimated HbA(1C) < or = 5.8%, GA levels significantly increased but HbA(1C) levels decreased as a function of decreasing hepaplastin test (HPT). The ratio of GA/HbA(1C) (G/H ratio) increased as a function of decreasing HPT. In patients with estimated HbA(1C) > 5.8%, in contrast, GA levels were independent of HPT levels. In the patients with CLD, GA and HbA(1C) were associated with mean plasma glucose levels and some indicators for hepatic function. The multivariate analysis revealed a significant association of G/H ratio with HPT, cholinesterase and direct bilirubin. The G/H ratio was not associated with the mean plasma glucose but with HPT and cholinesterase levels. CONCLUSIONS: The G/H ratio correlates with hepatic function but not with plasma glucose levels. Therefore, CLD should be suspected for diabetic patients with an elevated G/H ratio.


Assuntos
Hemoglobinas Glicadas/metabolismo , Hepatopatias/sangue , Hepatopatias/metabolismo , Idoso , Doença Crônica , Diabetes Mellitus Tipo 2 , Feminino , Produtos Finais de Glicação Avançada , Humanos , Hepatopatias/patologia , Testes de Função Hepática , Masculino , Pessoa de Meia-Idade , Albumina Sérica/metabolismo , Albumina Sérica Glicada
17.
Diabetes Res Clin Pract ; 83(3): 341-6, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19118911

RESUMO

AIMS: To estimate the prevalence of undiagnosed diabetes mellitus and its relationship with various risk factors in a population undergoing health screening in Japan. METHODS: Oral glucose tolerance tests were carried out in a total sample of 14,674 Japanese subjects undergoing health screening, aged 20-83 years and without known diabetes. The prevalence of glucose tolerance categories (1999 WHO criteria) was adjusted for sample probabilities. The optimal FPG cut-off point for screening diabetes was estimated using ROC curve analysis for the continuous value of FPG corresponding to a 2-h PG of 200 mg/dl. The number needed to screen (NNTS) to identify one person with undiagnosed diabetes with various risk factors was estimated using the following equation: the number of undiagnosed diabetic plus nondiabetic subjects/the number of undiagnosed diabetic subjects. RESULTS: The prevalence of undiagnosed diabetes among men and women was 6.4% (NNTS 15.7) and 3.2% (NNTS 31.7), respectively. The optimal FPG cut-off point for screening diabetes among men and women was 105 and 106 mg/dl, respectively. NNTS was lower in individuals with more risk factors, e.g. aging (> or =50), BMI (> or =25), hypertension (SBP> or =140 mmHg and/or DBP> or =90 mmHg) and dyslipidemia (TC> or =220 and/or HDL-C<40 and/or TG> or =150 mg/dl), resulting in the lowest NNTS in individuals having all four risk factors among men (6.1) and women (6.7), respectively. CONCLUSIONS: In Japan, screening for diabetes may be more efficient among individuals having an FPG of more than 105-106 mg/dl and with more risk factors, especially in men.


Assuntos
Diabetes Mellitus/epidemiologia , Programas de Rastreamento/normas , Adulto , Idoso , Idoso de 80 Anos ou mais , Diabetes Mellitus/diagnóstico , Dislipidemias/epidemiologia , Feminino , Teste de Tolerância a Glucose , Humanos , Hipertensão/epidemiologia , Japão/epidemiologia , Masculino , Programas de Rastreamento/estatística & dados numéricos , Pessoa de Meia-Idade , Obesidade/epidemiologia , Seleção de Pacientes , Prevalência , Reprodutibilidade dos Testes , Adulto Jovem
18.
Diabetes Res Clin Pract ; 81(2): 258-62, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18513821

RESUMO

In patients with chronic liver diseases (CLD), turnover of erythrocytes is increased whereas that of serum albumin is decreased. Thus, glycated hemoglobin (HbA(1C)) and glycated albumin (GA) cannot be used as adequate indicators for chronic plasma glucose control in diabetic patients with CLD. In this investigation, we have proposed CLD-HbA(1C), a novel long-term glycemic control marker by using measured HbA(1C) and GA. We studied 82 patients with CLD in whom glycemic control was regarded as to be stable. Daily plasma glucose profiles were monitored and estimated levels of HbA(1C) were calculated on the conversion formula established by Rohlfing et al. [C.L. Rohlfing, J.D. England, H.M. Wiedmeyer, A. Tennill, R.R. Little, D.E. Goldstein, Defining the relationship between plasma glucose and HbA1c, Diabetes Care 25 (2002) 275-278]. Cholinesterase (ChE) as an indicator for hepatic function was determined at the same time when HbA(1C) and GA levels were measured. CLD-HbA(1C) was defined as the average of measured HbA(1C) and GA/3, based upon the results that among healthy individuals, GA levels were roughly estimated at approximately threefold higher than HbA(1C) levels. While measured HbA(1C) levels in patients with CLD were generally lower than estimated HbA(1C) levels, GA/3 values were generally higher than estimated HbA(1C) levels. Such discrepancies lineally increased in accordance with a decrease in ChE levels. On the other hand, CLD-HbA(1C) levels were highly correlated with estimated HbA(1C) levels (R=0.883), while no significant correlation between CLD-HbA(1C) and ChE was noted. In conclusion, CLD-HbA(1C) has been found a superior chronic glycemic control marker than HbA(1C) or GA in diabetic patients with chronic liver diseases.


Assuntos
Glicemia/análise , Hemoglobinas Glicadas/metabolismo , Hepatopatias/sangue , Biomarcadores/sangue , Colinesterases/sangue , Doença Crônica , Creatinina/sangue , Produtos Finais de Glicação Avançada , Humanos , Pacientes Internados , Hepatopatias/enzimologia , Albumina Sérica/metabolismo , Albumina Sérica Glicada
19.
Endocr J ; 54(4): 601-4, 2007 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17641444

RESUMO

Carbohydrate antigen 125 (CA125) is a tumor-marker frequently associated with ovarian malignancies; however, benign gynecologic conditions (e.g. ovarian cysts) commonly cause a smaller increase in CA125 levels. This report describes an elderly Japanese woman with high CA125 levels and massive ascites caused by hypothyroidism. A 67-year-old woman presented herself with a weight gain of about 12 kg and abdominal distension. Her serum CA125 level was markedly elevated (822 U/ml) and abdominal CT revealed a right ovarian cyst and massive ascites. Hormonal laboratory data showed severe primary hypothyroidism with a serum TSH of 594 IU/L and a free thyroxin level of 0.05 ng/dl. Ascitic fluid was found to be exudate with a high protein content of 42 g/L. Cytological analysis and FDG-PET showed no evidence of malignancy. The ascites completely disappeared and serum CA125 normalized after adequate hormonal replacement therapy. These data suggest that hypothyroidism should be considered in patients with ascites and elevated serum CA125.


Assuntos
Ascite/sangue , Antígeno Ca-125/sangue , Hipotireoidismo/sangue , Mixedema/sangue , Idoso , Ascite/tratamento farmacológico , Ascite/etiologia , Biomarcadores Tumorais/sangue , Feminino , Humanos , Hipotireoidismo/complicações , Hipotireoidismo/tratamento farmacológico , Mixedema/complicações , Mixedema/tratamento farmacológico , Tiroxina/uso terapêutico
20.
Diabetes Res Clin Pract ; 71(3): 241-6, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16112239

RESUMO

Although pancreatic exocrine enzymes are often elevated in patients with fulminant type 1 diabetes, the onset of this elevation and its significance in disease development remain unclear. We therefore investigated the significance of elevated serum enzyme concentrations and pancreatic swelling in the development of fulminant type 1 diabetes. Serum pancreatic exocrine enzymes, including amylase, elastase-I, lipase and trypsin, were measured during the course of the disease in 11 patients with fulminant type 1 diabetes (3 men and 8 women; a range of age 24-73 years, median 33 years; a range of HbA1c at onset 4.5-6.7%, median 6.0%), all of whom developed ketotic diabetes requiring intensive insulin therapy within a month. At least one pancreatic exocrine enzyme was elevated in each patient during the course of the disease. The concentration of enzymes on admission could not be correlated with urinary excretion of C-peptide. The time course of increase in serum amylase varied in these patients. In conclusion, neither the level of serum amylase nor the swelling of pancreas was associated with the onset or severity of fulminant type 1 diabetes. The pancreatic exocrine and endocrine events may occur concomitantly but independently during the course of fulminant type 1 diabetes.


Assuntos
Diabetes Mellitus Tipo 1/fisiopatologia , Ilhotas Pancreáticas/fisiopatologia , Pâncreas/fisiopatologia , Adulto , Idoso , Amilases/sangue , Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 1/diagnóstico por imagem , Diabetes Mellitus Tipo 1/patologia , Feminino , Humanos , Ilhotas Pancreáticas/diagnóstico por imagem , Ilhotas Pancreáticas/patologia , Lipase/sangue , Masculino , Pessoa de Meia-Idade , Pâncreas/diagnóstico por imagem , Pâncreas/patologia , Elastase Pancreática/sangue , Tomografia Computadorizada por Raios X , Tripsina/sangue
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