Purpose. To explore the possible intermediary pathways through which diabetes mellitus (DM) adversely worsens hepatocellular carcinoma (HCC), focusing on cell life controllers as some transcription factors and inflammatory mediators. Material and methods. Forty male albino rats were divided into four groups, control, cancer [given single intra-peritoneal (IP) dose of diethyl ...

Hepatocellular carcinoma (HCC), a disease with poor survival rates unless recognized and treated early, ranks as the fifth most common cancer worldwide and has a rising incidence in the United States. Recent data indicate that the growing epidemic of type 2 diabetes mellitus may contribute to this alarming trend. In ...

BACKGROUND AND OBJECTIVES: To elucidate the influence of diabetes on tumor recurrence after curative resection for hepatitis C virus (HCV)-related hepatocellular carcinoma (HCC). METHODS: A total of 100 patients who underwent curative resection for solitary HCV-related HCC were analyzed. Data from 26 patients with diabetes were compared to those of ...

Type 2 diabetes has been suggested as an independent risk factor for the development of hepatocellular carcinoma (HCC). However, the role of type 2 diabetes on the development of HCC in the presence of chronic hepatitis B (CHB) is still inconclusive. We conducted this hospital-based case-control study to evaluate the ...

Insulin resistance is a defining feature of metabolic syndrome and type 2 diabetes mellitus but also may occur independently of these conditions. Nonalcoholic fatty liver disease (NAFLD), the hepatic manifestation of these disorders, increases the risk of hepatocellular carcinoma (HCC). However, mechanisms linking hyperinsulinemia to NAFLD and HCC require clarification. ...

BACKGROUND: The studies of diabetes and hepatocellular carcinoma (HCC) reported inconsistent findings. This meta-analysis was conducted to examine the association between diabetes and risk of HCC. METHODS: Studies were identified by searching PUBMED and MEDLINE database up to February 2011. Pooled risk estimates were calculated using the random-effects model. Potential ...

Coinciding with the increased incidence of hepatocellular carcinoma (HCC), there has been a significant increase in the global incidence of obesity and diabetes mellitus (DM), the two major risk factors for nonalcoholic steatohepatitis (NASH). There are many causes of HCC, and nonalcoholic fatty liver disease/NASH is now emerging as a ...

This study aimed to investigate the association of fasting insulin and glucose levels with hepatocellular carcinoma (HCC) risk in a case-cohort study within a cohort (1989-2006) of 2903 male government employees chronically infected with hepatitis B virus (HBV) in Taiwan. Insulin, glucose, and HBV-related factors were assayed in baseline plasma ...

AIM: Diabetes mellitus (DM) is a risk factor for hepatocellular carcinoma (HCC). It directs glucose to sorbitol and fructose in polyol pathway (PP). To pursue contribution of PP in hepatocarcinogenesis. METHODS: We utilized ascorbic acid (AA) and diallyl sulfide (DAS) in experimental DM and HCC against control. HCC was induced ...

Type 2 Diabetes (T2DM) is associated with liver inflammation and carcinogenesis. The prevalence of T2DM among patients with liver cirrhosis and hepatocellular carcinoma is increasing. However, the effect of T2DM on the natural history of hepatocellular carcinoma is not known. To examine the effect of T2DM on hepatocellular carcinoma (HCC) ...

INTRODUCTION: Type 2 Diabetes (T2DM) is associated with liver inflammation and carcinogenesis. The prevalence of T2DM among patients with liver cirrhosis and hepatocellular carcinoma is increasing. However, the effect of T2DM on the natural history of hepatocellular carcinoma is not known. AIM: To examine the effect of T2DM on hepatocellular ...

Background and Aim: Type 2 diabetes increases the risk of cancer development and mortality. However, antidiabetic treatment with metformin can reduce the risk of cancer. We studied whether metformin users among diabetic patients with early hepatocellular carcinoma (HCC) undergoing radiofrequency ablation (RFA) would have a favorable survival compared to those ...

The impact of pre-existing diabetes mellitus (DM) on hepatocellular carcinoma (HCC) occurrence and prognosis is complex and unclear. The aim of this meta-analysis is to evaluate the association between pre-existing diabetes mellitus and hepatocellular carcinoma occurrence and prognosis. We searched PubMed, Embase and the Cochrane Library from their inception to ...

Context: Comprehensive characterization of the adipose tissue in women with polycystic ovary syndrome (PCOS), over a wide range of body mass indices (BMIs), is lacking. Mechanisms behind insulin resistance in PCOS are unclear. Objective: To characterize the adipose tissue of women with PCOS and controls matched pair-wise for age and ...

Polycystic ovary syndrome (PCOS) is characterised by anovulation, hyperandrogenism, and polycystic ovaries. Fifty percent of patients fulfil the criteria for the metabolic syndrome. The pathogenesis of PCOS may be looked as a vicious cycle involving hyperandrogenemia, central obesity, and insulin resistance and medical treatment should aim at breaking this cycle. ...

Thirty-four women with polycystic ovary syndrome who previously had participated in studies with intravenous glucose tolerance test and hyperinsulinemic, euglycemic clamp between 1987 and 1995 underwent anthropometric, endocrine (T and sex-hormone binding globulin serum concentration), and metabolic (intravenous glucose tolerance test, hyperinsulinemic, euglycemic clamp, and androgens) measurements. Free androgen levels ...

There is plenty of evidence that osteoprotegerin (OPG) is linked to subclinical vascular damage and predicts cardiovascular disease in high-risk populations. Our aim is to investigate the relationships of OPG/free soluble receptor activator of nuclear factor κB ligand (sRANKL) to insulin resistance, brachial artery flow-mediated vasodilation (FMD), and the carotid ...

Polycystic ovarian syndrome (PCOS) is the leading cause of infertility in reproductive-aged women with the majority manifesting insulin resistance. To delineate the causes of insulin resistance in women with PCOS, we determined changes in the mRNA expression of insulin receptor (IR) isoforms and members of its signaling pathway in tissues ...

Polycystic ovary syndrome (PCOS) is an endocrine disorder with a complex pathogenesis in which hormonal disturbances, metabolic disorders and chronic inflammation have been considered. Relationships among the paraoxonase 1 (PON1) gene, hyperandrogenism and insulin resistance in women with PCOS have been reported. The aim of this study was to evaluate ...

Polycystic ovary syndrome (PCOS) affects 6.6-6.8% of women in reproductive age. Insulin resistance and hyperinsulinemia play a critical role in the pathogenesis of PCOS and are associated with a high risk for type 2 diabetes mellitus and cardiometabolic abnormalities. Metformin has been introduced as a therapeutic option in PCOS, targeting ...

Low-grade chronic inflammation underlies the pathogenesis of insulin-resistant disorders such as polycystic ovary syndrome (PCOS). We aimed to study if the changes observed in the insulin sensitivity of PCOS patients during treatment with oral contraceptives or metformin associate changes in the serum inflammatory markers interleukin-6 (IL-6) and interleukin-18 (IL-18). In ...

The aim of this study was to evaluate ischemia-modified albumin levels (IMA) in polycystic ovary syndrome (PCOS) cases with and without insulin resistance and the correlation of IMA with carotid intima media thickness, homocysteine, and high-sensitivity C-reactive protein levels. Significantly higher levels of IMA in young lean PCOS cases, more ...

Objective. To evaluate the asymmetric dimethylarginine (ADMA) and nitric oxide (NO) levels in obese and lean patients with polycystic ovarian syndrome (PCOS) and find out their relation with hormonal and metabolic parameters. Methods. Twenty-two obese, 18 lean patients with PCOS and 11 obese, 24 lean healthy control patients were enrolled prospectively. Plasma ...

The G-protein Gq, encoded by GNAQ, is involved in glucose metabolism. The GNAQ promoter harbours three polymorphisms. The TT(-695/-694)GC polymorphism was already shown to affect Gq transcription. Accordingly, we (i) characterized the GNAQ promoter polymorphisms G(-173)A and G(-168)A, (ii) investigated potential influences upon the TT(-695/-694)GC polymorphism and (iii) studied the ...

To determine clinically useful predictors of conversion from normal to abnormal glucose tolerance (AGT) in women with polycystic ovary syndrome (PCOS) during regular follow-up, considering that optimal timing for retesting with an oral glucose tolerance test (OGTT) is unknown. Retrospective cohort study. Reproductive endocrinology clinic of an academic center. Glucose-tolerant ...

Metformin is quite an old drug, but it is optimal for the control of glycemia in Type 2 diabetes. It was reported, 15 years ago, that insulin resistance was abnormally high in most polycystic ovary syndrome (PCOS) patients. Starting from that moment, increasing numbers of studies were performed to demonstrate ...

BACKGROUND: The cellular abundance of the phosphoprotein enriched in diabetes (PED/PEA-15), a 15 kDa protein related to insulin resistance (IR), is increased in women with polycystic ovary syndrome (PCOS). AIM: To investigate whether metformin (MET) has additive effects on PED/PEA-15 protein levels. MATERIAL/SUBJECTS AND METHODS: This is an open label, ...

Prenatal testosterone (T) excess causes reproductive and metabolic disruptions including insulin resistance, attributes of women with polycystic ovary syndrome. This study tested the hypothesis that insulin resistance contributes toward severity of reproductive disruptions in prenatally T-treated females. Pregnant sheep were injected im with 100 mg of T-propionate semiweekly from d ...

Objective. To verify whether QUICKY is a suitable method for the identification of metabolic deterioration in normal weight patients affected by polycystic ovarian syndrome (PCOS). Design. Prospective clinical study. Patient(s). Seventy-nine PCOS normal weight adolescent subjects, 50 eumenorrheic, normal weight, non-hirsute controls matched for age and BMI. Method(s). Quantitative insulin sensitivity check index (QUICKY) ...

Some points of pathogenesis in polycystic ovarian syndrome (PCOS) are still unknown. In this study we evaluated the characteristics of this disease and its relationship with ghrelin in adolescence. A prospective case control study was designed. Four groups: obese PCOS (n = 13), lean PCOS (n = 13), obese control ...

Polycystic ovary syndrome (PCOS) is the most common endocrine disorder of unknown etiology. Insulin resistance is very common and plays a central pathogenic role in PCOS. During last decade several studies have been conducted to understand the mechanisms contributing to the state of insulin resistance and insulin-induced hyperandrogenemia in PCOS. ...

Our aim was to investigate levels of lipocalin-2 and its relationship with metabolic factors in women with polycystic ovary syndrome (PCOS).MATERIALS/SUBJECTS AND METHODS: In this cross-sectional study, two groups of women were studied: group 1 consisted of women with PCOS (no.=30), and group 2 consisted of control women with normal ...

Objective. To evaluate the impact of obesity and various phenotypes of polycystic ovary syndrome (PCOS) on the insulin sensitivity index (ISI) and insulin resistance (IR). Methods. ISI and IR from 273 women in four phenotypes of PCOS and control groups were evaluated retrospectively. Results. The ISI and the percentage of IR were not ...

Polycystic ovary syndrome (PCOS) has a prevalence of 5-8% in women of reproductive age. Women with PCOS have an increased risk of metabolic syndrome and associated comorbidities. Adiponectin is a circulating protein produced by adipocytes. Circulating levels of adiponectin are inversely related to adipocyte mass. Low levels occur with insulin ...

To evaluate the impact of testosterone (T) administration to female-to-male transsexuals (FtMs) on insulin resistance and lipid parameters and to compare the effects with women with polycystic ovary syndrome (PCOS). Cohort analysis. University hospital. Twenty-nine FtMs and 240 women with PCOS. Screening panel, ultrasound of the ovaries, hormone, lipid, and ...

To estimate (1) the prevalence of insulin resistance (IR) by fasting glucose: insulin ratio (G:I) (G:I <or= 4.5) in overweight-obese polycystic ovary syndrome (PCOS) women, (2) to compare the clinical and biochemical parameters between insulin-resistant and insulin-sensitive groups. Eighty-one overweight-obese PCOS women (body mass index (BMI) >or= 23 kg/m(2)) were ...

A total of 31 women with polycystic ovary syndrome (PCOS) and 31 healthy age/body mass index matched controls were compared for serum hormones, basal and oral-glucose stimulated glucose, insulin, homocysteine, high sensitive C-reactive protein (hsCRP) and lipid levels. The women with PCOS had significantly higher serum fasting insulin, homocysteine, total ...

Whatever the origin of severe insulin resistance (primary insulin receptors defects or lipodystrophies), in vivo hyperinsulinemia has been clearly shown to promote ovarian growth and androgen synthesis independently of gonadotropins. In lipodystrophic syndromes, the endocrine deficiency of adipose tissue has been shown to play important pathophysiological roles in metabolic alterations. ...

Obese women with polycystic ovary syndrome (PCOS) manifest impaired insulin-stimulated release of a d-chiro-inositol-containing inositolphosphoglycan (DCI-IPG) insulin mediator during oral glucose tolerance testing (OGTT), which appears to be restored by the administration of metformin. This suggests that either obesity or PCOS is associated with a defect in the coupling of ...

OBJECTIVE: To determine the prevalence of metabolic syndrome and insulin resistance in Thai women with polycystic ovary syndrome (PCOS). MATERIAL AND METHOD: Oral glucose tolerance tests were performed in 70 PCOS women. Blood was taken for the measurement of fasting insulin, 2-hr postprandial insulin, lipid profiles, testosterone and sex hormone ...

A major component of the polycystic ovary syndrome (PCOS) is the insulin resistance. Only a few studies have evaluated the IRS-1 polymorphism at codon 972, sometimes in the absence of a control group, and with great variability in frequency (0-23% in PCOS vs. 0-17% in controls), and with no unequivocal ...

OBJECTIVE: To investigate the association of insulin resistance with dyslipidemia and metabolic syndrome (MBS) in women with polycystic ovary syndrome (PCOS). METHODS: Fasting glucose (G), insulin (I), and lipid levels were measured in 50 infertile women with PCOS. A fasting G/I ratio of 4.5 or less (n=29) defined insulin resistance ...

To evaluate the effect of metformin in polycystic ovary syndrome (PCOS). As follow-up on a previous paper describing hormonal and metabolic factors, this paper focuses on correlations between adiponectin and anthropometric, hormonal, and metabolic factors in PCOS and the effect of metformin. Randomized, double-blind, placebo-controlled crossover study. District and university ...

OBJECTIVE: At menopause, the frequent weight gain excess could be related to insulin resistance. This study evaluated the prevalence of hyperinsulinemia in nonobese women reporting a moderate increase in weight at the beginning of menopause. METHODS: Women who were postmenopausal for 1 to 5 years and reporting a weight gain ...

BACKGROUND: Chlormadinone acetate (CMA) is a progestin compound similar to progesterone, with antiandrogenic properties. In healthy eumenorrheic women, it was demonstrated that the monophasic estroprogestin formulation containing CMA (2 mg) plus ethinyl estradiol (EE) (30 mcg) (EE30+CMA) is efficacious both in reducing hyperandrogenic symptoms, fat mass and in improving lipoprotein ...

The aim of this study was to evaluate the effects of metformin in addition to diet and exercise on endocrine and metabolic disturbances in women with polycystic ovary syndrome (PCOS) in a prospective, double-blind, randomized, placebo (PBO) control trial. Thirty women with insulin resistance and PCOS received lifestyle modification and ...

Polycystic ovary syndrome (PCOS) is associated with hyperandrogenism, insulin resistance (IR), and chronic inflammation. Simvastatin improves endocrine/clinical aspects of PCOS and decreases systemic inflammation in PCOS. There have been no comparative studies carried out regarding the effects of different statin treatment in PCOS. We aimed to assess the effects of ...

Insulin resistance might play a role in the pathogenesis of polycystic ovarian syndrome (PCOS). The family of glycoprotein 130 (gp130) cytokines could influence insulin action. One of these cytokines is interleukin (IL)-6, which exerts a short-term insulin-sensitizing effect, whereas in a long-term period, it might induce insulin resistance. Some other ...

To evaluate the pathogenetic mechanisms underlying abnormal glucose tolerance in polycystic ovary syndrome (PCOS). Case-control study. Academic hospital. One hundred twelve patients with PCOS and 86 nonhyperandrogenic control women of similar age and body mass index (BMI). An oral glucose tolerance test (OGTT) served to explore glucose tolerance and to ...

PURPOSE: The objective of this study was evaluate influence of body mass index (BMI), hyperinsulinemia and/or insulin resistance (IR), and androgens on the lipid profile of adolescent polycystic ovary syndrome (PCOS). METHODS: A total of 71 PCOS and 94 healthy adolescent girls from a Southern Italian region were included in ...