scholarly journals Peripheral Blood Mitochondrial DNA Content Is Related to Insulin Sensitivity in Offspring of Type 2 Diabetic Patients

Diabetes Care ◽  
2001 ◽  
Vol 24 (5) ◽  
pp. 865-869 ◽  
Author(s):  
J. Song ◽  
J. Y. Oh ◽  
Y.-A. Sung ◽  
Y. K. Pak ◽  
K. S. Park ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Insulin Sensitivity ◽  
Dna Content ◽  
Peripheral Blood ◽  
Diabetic Patients ◽  
Type 2 Diabetic Patients ◽  
Mitochondrial Dna Content ◽  
Type 2 Diabetic

Long-Term Oral L-Arginine Administration Improves Peripheral and Hepatic Insulin Sensitivity in Type 2 Diabetic Patients

Diabetes Care ◽  
2001 ◽  
Vol 24 (5) ◽  
pp. 875-880 ◽  
Author(s):  
P. Piatti ◽  
L. D. Monti ◽  
G. Valsecchi ◽  
F. Magni ◽  
E. Setola ◽  
...  
Keyword(s):  
Insulin Sensitivity ◽  
Diabetic Patients ◽  
Type 2 Diabetic Patients ◽  
Hepatic Insulin Sensitivity ◽  
Type 2 Diabetic

scholarly journals Prevalence of 15 mitochondrial DNA mutations among type 2 diabetic patients with or without clinical characteristics of maternally inherited diabetes and deafness

2008 ◽  
Vol 52 (8) ◽  
pp. 1228-1235 ◽  
Author(s):  
Daisy Crispim ◽  
Aline A. F. Estivalet ◽  
Israel Roisenberg ◽  
Jorge L. Gross ◽  
Luis H. Canani
Keyword(s):  
Type 2 Diabetes ◽  
Mitochondrial Dna ◽  
Classical Type ◽  
Diabetic Patients ◽  
Type 2 Diabetic Patients ◽  
Diabetes Group ◽  
Mtdna Mutations ◽  
Type 2 Diabetic ◽  
Inherited Diabetes

The aim of the present study is to investigate the prevalence of ten described mitochondrial DNA (mtDNA) mutations in patients with type 2 diabetes, and search for new mutations in four mtDNA genes in a subgroup of patients with characteristics of maternally inherited diabetes and deafness (MIDD). These mutations were investigated in 407 type 2 diabetic patients without characteristics of mitochondrial diabetes ("classical" type 2 diabetes group) and in 38 type 2 diabetic patients with characteristics suggestive of MIDD. Through sequencing of four mtDNA genes in MIDD patients, we selected five others potentially pathogenic mutations that were also screened in the remaining patients. Overall, the frequency of the fifteen analyzed mutations was 36.84% in the MIDD group and 2.45% in the "classical" type 2 diabetes group (p < 0.001). In conclusion, our study reinforces the importance of mtDNA mutations in the pathogenesis of MIDD.

Adiponectin expression in adipose tissue is reduced in first-degree relatives of type 2 diabetic patients

2003 ◽  
Vol 284 (2) ◽  
pp. E443-E448 ◽  
Author(s):  
A. S. Lihn ◽  
T. Østergård ◽  
B. Nyholm ◽  
S. B. Pedersen ◽  
B. Richelsen ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Insulin Sensitivity ◽  
Subcutaneous Adipose Tissue ◽  
Diabetic Patients ◽  
Mrna Levels ◽  
Type 2 Diabetic Patients ◽  
Adiponectin Mrna ◽  
Subcutaneous Adipose ◽  
Type 2 Diabetic

Adiponectin is suggested to be an important mediator of insulin resistance. Therefore, we investigated the association between adiponectin and insulin sensitivity in 22 healthy first-degree relatives (FDR) to type 2 diabetic patients and 13 matched control subjects. Subcutaneous adipose tissue biopsies were taken before and after a hyperinsulinemic euglycemic clamp. FDR subjects were insulin resistant, as indicated by a reduced Mvalue (4.44 vs. 6.09 mg · kg−1· min−1, P < 0.05). Adiponectin mRNA expression was 45% lower in adipose tissue from FDR compared with controls ( P < 0.01), whereas serum adiponectin was similar in the two groups (6.4 vs. 6.6 μg/ml, not significant). Insulin infusion reduced circulating levels of adiponectin moderately (11–13%) but significantly in both groups ( P < 0.05). In the control group, adiponectin mRNA levels were negatively correlated with fasting insulin ( P < 0.05) and positively correlated with insulin sensitivity ( P < 0.05). In contrast, these associations were not found in the FDR group. In conclusion, FDR have reduced adiponectin mRNA in subcutaneous adipose tissue but normal levels of circulating adiponectin. Adiponectin mRNA levels are positively correlated with insulin sensitivity in control subjects but not in FDR. These findings indicate dysregulation of adiponectin gene expression in FDR.

scholarly journals Resveratrol improves insulin sensitivity, reduces oxidative stress and activates the Akt pathway in type 2 diabetic patients

2011 ◽  
Vol 106 (3) ◽  
pp. 383-389 ◽  
Author(s):  
Pál Brasnyó ◽  
Gergő A. Molnár ◽  
Márton Mohás ◽  
Lajos Markó ◽  
Boglárka Laczy ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Insulin Resistance ◽  
Insulin Sensitivity ◽  
Cell Function ◽  
Diabetic Patients ◽  
Β Cell ◽  
Type 2 Diabetic Patients ◽  
Β Cell Function ◽  
Type 2 Diabetic

Although resveratrol has widely been studied for its potential health benefits, little is known about its metabolic effects in humans. Our aims were to determine whether the polyphenol resveratrol improves insulin sensitivity in type 2 diabetic patients and to gain some insight into the mechanism of its action. After an initial general examination (including blood chemistry), nineteen patients enrolled in the 4-week-long double-blind study were randomly assigned into two groups: a resveratrol group receiving oral 2 × 5 mg resveratrol and a control group receiving placebo. Before and after the second and fourth weeks of the trial, insulin resistance/sensitivity, creatinine-normalised ortho-tyrosine level in urine samples (as a measure of oxidative stress), incretin levels and phosphorylated protein kinase B (pAkt):protein kinase B (Akt) ratio in platelets were assessed and statistically analysed. After the fourth week, resveratrol significantly decreased insulin resistance (homeostasis model of assessment for insulin resistance) and urinary ortho-tyrosine excretion, while it increased the pAkt:Akt ratio in platelets. On the other hand, it had no effect on parameters that relate to β-cell function (i.e. homeostasis model of assessment of β-cell function). The present study shows for the first time that resveratrol improves insulin sensitivity in humans, which might be due to a resveratrol-induced decrease in oxidative stress that leads to a more efficient insulin signalling via the Akt pathway.

Increased Oxidative Damage with Altered Antioxidative Status in Type 2 Diabetic Patients Harboring the 16189 T to C Variant of Mitochondrial DNA

2005 ◽  
Vol 1042 (1) ◽  
pp. 64-69 ◽  
Author(s):  
TSU-KUNG LIN ◽  
SHANG-DER CHEN ◽  
PEI-WEN WANG ◽  
YAU-HUEI WEI ◽  
CHENG-FENG LEE ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Oxidative Damage ◽  
Diabetic Patients ◽  
Type 2 Diabetic Patients ◽  
Antioxidative Status ◽  
Type 2 Diabetic

scholarly journals Effect of bezafibrate on insulin sensitivity in nonobese Japanese type 2 diabetic patients

Diabetes Care ◽  
2000 ◽  
Vol 23 (2) ◽  
pp. 259-259 ◽  
Author(s):  
M. Fukushima ◽  
A. Taniguchi ◽  
M. Sakai ◽  
K. Doi ◽  
I. Nagata ◽  
...  
Keyword(s):  
Insulin Sensitivity ◽  
Diabetic Patients ◽  
Type 2 Diabetic Patients ◽  
Type 2 Diabetic
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