51 research outputs found

    Endocrine disruptor chemicals as obesogen and diabetogen: Clinical and mechanistic evidence

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    Obesity is becoming an inevitable pandemic all over the world. The World Obesity Federation predicts in the 2022 World Obesity Atlas that one billion people worldwide, including 1 in 5 women and 1 in 7 men, will be living with obesity by 2030. Moreover, the prevalence of diabetes is increasing worldwide, and diabetes is becoming more of a public health problem. Increased insulin resistance due to obesity and deficiency in insulin secretion are the two main causes of type 2 diabetes mellitus (T2DM). An exogenous chemical or mixture of chemicals that interferes with any aspect of hormone action was defined as endocrine-disrupting chemicals (EDCs). Bisphenol A (BPA), the first known EDC, was synthesized and was considered to be estrogenic. Global production of BPA has increased progressively from 5 to 8 million tons (MT) between 2010 and 2016. Furthermore, researchers estimated that the production should reach 10.2 MT by 2022. The human population is exposed to EDCs in daily life in such forms as pesticides/herbicides, industrial and household products, plastics, detergents, and personal care products. The term obesogen was used for chemicals that promote weight gain and obesity by increasing the number of adipocytes and fat storage in existing adipocytes, changing the energy balance, and finally regulating appetite and satiety. Besides the obesogenic effect, EDCs can cause T2DM through alteration in B cell function and morphology and insulin resistance. In this review, we provide clinical and mechanistic evidence regarding EDCs as obesogen and diabetogen. However, those studies are not enough methodologically to indicate causality. In this respect, randomized clinical trials are needed to investigate the association between obesogen, diabetogen and the related metabolic clinical picture

    Determining the Cardiovascular Disease Risk Factor Knowledge and Related Factors Among Adults With Type 2 Diabetes Mellitus

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    In this study was to determine knowledge of cardiovascular disease (CVD) risk factors and to explore related factors among adults with type 2 diabetes mellitus (DM) who have not been diagnosed with CVD. This descriptive study was conducted with 175 adults. Data were collected individual identification form and Cardiovascular Disease Risk Factors Knowledge Level (CARRF-KL) scale. A negative correlation was found between age and CARRF-KL score. A significant difference was found between educational status and CARRF-KL score. The individuals described their health status as good, managed their condition with diet and exercise, received information from nurses, adults with DM in their family and those with no DM complications had significantly higher scores in CARRF-KL. The knowledge of an individual with DM about CVD risk factors should be assessed, CVD risks should be identified at an early stage, and individuals at risk should be subjected to screening

    Is it the time for metformin to take place in adjuvant treatment of Her-2 positive breast cancer? Teaching new tricks to old dogs

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    WOS: 000270374400041PubMed ID: 19560877Breast cancer is the most common malignancy diagnosed among women. According to the new molecular subclassification, basal like and Her-2 positive breast cancers have the worst outcome and these are the ones in which chemotherapy is a must as a part of adjuvant treatment. New treatment options that could be used as an adjuvant maintenance treatment are still being investigated. Insulin hormone is one of the reasons of breast cancer recurrence and death in breast cancer survivors. Targeting insulin as a therapeutic modality in breast cancer could be an option in the adjuvant treatment of breast cancer. It seems that insulin may signal to activate a cascade of proliferative and anti-apoptotic events in the cancer cell. Metformin, an oral anti-diabetic known for 50 years, may also have direct effects on cancer cells. Metformin causes Her-2 suppression via the inhibition of mTOR in breast cancer cells. Thus, we believe that the time has arrived both to target insulin reduction and to alter Her-2 oncogene based molecular pathogenetic steps in breast cancer by using metformin as an adjuvant therapy in breast cancer patients. (C) 2009 Elsevier Ltd. All rights reserved

    Effect of a weight loss intervention on iron parameters in overweight and obese Turkish women

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    Background/aims: To examine changes in body weight and iron parameters of overweight and obese premenopausal women who participated in a weight loss intervention. Methods: A total of 147 overweight or obese women, aged 20-49 years, were included in this study. Subjects were divided into two groups at the baseline of study. All women underwent a 3 month intervention, a nutritional weight loss program. The first group included women with low hemoglobin levels, as the second group consisted of women with normal hemoglobin levels. Biochemical, and anthropometric parameters were measured, and dietary intake was recorded at the baseline and end of the study. Results: After the intervention, first group had 10.1% weight loss, whereas the second group had 10.7%. A statistically significant relationship between body weight loss and C-reactive protein (CRP) levels was determined. Significant decrease was observed on the anthropometric variables, dietary energy, total fat, saturated fatty acids, and carbohydrate intake. Dietary intakes of vitamin C, fiber, iron, and calcium levels increased. Conclusion: Weight loss improved the blood iron parameters and anthropometric measurements possibly due to its possitive effect on inflammation

    Assessment of pituitary function in patients with nasopharyngeal carcinoma: the effect of radiotherapy

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    Radiotherapy (RT) plays a very important role in nasopharyngeal carcinoma (NPC). the pituitary gland can be affected by radiation due to its proximity to the nasopha-ryngeal cavity. Our aim is to demonstrate the effect of radiotherapy given for NPC on anterior pituitary function with basal pituitary hormones and provocative tests. Patients with NPC that were treated with definitive chemoradioherapy were reviewed retrospectively. Serum ACTH, GH, PRL, FSH, LH, TSH and cortisol, DHEAS, IGF-1, E2, testosterone, fT3, fT4 levels were recorded to evaluate pituitary function. Insulin tolerance test was performed to investigate hypothalamic-pituitary-adrenal axis and GH -IGF-1 axis. Comparison between early tumor stage and advanced tumor stage for pituitary dysfunction was done. the median time interval between the RT and endocrinologic evaluation was 4.0 (1-13) years. ACTH deficiency was found to be most common hormonal problem with a frequency of 73.7%. of these 71.4% were mild adrenal deficiencies. GH deficiency was seen in 60% of patients. fT3, TSH, GH and IGF-1 levels were significantly lower in patients with advanced tumor stage compared with early tumor stage (p = 0.033, p = 0.022, p = 0.043, p = 0.022, respectively). Growth hormone deficiency was found in all of advanced and in 43% of early tumor stage patients (p = 0.017). We found higher rates of ACTH and GH deficiencies followed by gonadotropin, corticotropin and thyrotropin deficiency. Basal pituitary hormones will not be sufficient to evaluate anterior pituitary failure. Annual and systematic dynamic tests together with basal anterior pituitary hormones would be neede
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