scholarly journals Obesity and Diabetes: The Increased Risk of Cancer and Cancer-Related Mortality

2015 ◽  
Vol 95 (3) ◽  
pp. 727-748 ◽  
Author(s):  
Emily Jane Gallagher ◽  
Derek LeRoith
Keyword(s):  
Type 2 Diabetes ◽  
Cancer Risk ◽  
Cancer Progression ◽  
Intentional Weight Loss ◽  
Obesity And Diabetes ◽  
Increased Risk ◽  
Incidence And Mortality ◽  
Onset Of Diabetes ◽  
Risk Of Cancer

Obesity and type 2 diabetes are becoming increasingly prevalent worldwide, and both are associated with an increased incidence and mortality from many cancers. The metabolic abnormalities associated with type 2 diabetes develop many years before the onset of diabetes and, therefore, may be contributing to cancer risk before individuals are aware that they are at risk. Multiple factors potentially contribute to the progression of cancer in obesity and type 2 diabetes, including hyperinsulinemia and insulin-like growth factor I, hyperglycemia, dyslipidemia, adipokines and cytokines, and the gut microbiome. These metabolic changes may contribute directly or indirectly to cancer progression. Intentional weight loss may protect against cancer development, and therapies for diabetes may prove to be effective adjuvant agents in reducing cancer progression. In this review we discuss the current epidemiology, basic science, and clinical data that link obesity, diabetes, and cancer and how treating obesity and type 2 diabetes could also reduce cancer risk and improve outcomes.

scholarly journals Diabetes, Antidiabetic Medications and Cancer Risk in Type 2 Diabetes: Focus on SGLT-2 Inhibitors

2021 ◽  
Vol 22 (4) ◽  
pp. 1680
Author(s):  
Mariusz Dąbrowski
Keyword(s):  
Type 2 Diabetes ◽  
Cancer Risk ◽  
The European Union ◽  
Sodium Glucose Cotransporter ◽  
Incidence And Mortality ◽  
Increasing Risk ◽  
Risk Of Cancer ◽  
Diabetes And Obesity ◽  
Increased Activity

In the last decade, cancer became the leading cause of death in the population under 65 in the European Union. Diabetes is also considered as a factor increasing risk of cancer incidence and mortality. Type 2 diabetes is frequently associated with being overweight and obese, which also plays a role in malignancy. Among biological mechanisms linking diabetes and obesity with cancer hyperglycemia, hyperinsulinemia, insulin resistance, increased levels of growth factors, steroid and peptide hormones, oxidative stress and increased activity of pro-inflammatory cytokines are listed. Antidiabetic medications can modulate cancer risk through directly impacting metabolism of cancer cells as well as indirectly through impact on risk factors of malignancy. Some of them are considered beneficial (metformin and thiazolidinedions—with the exception of bladder cancer); on the other hand, excess of exogenous insulin may be potentially harmful, while other medications seem to have neutral impact on cancer risk. Inhibitors of the sodium-glucose cotransporter-2 (SGLT-2) are increasingly used in the treatment of type 2 diabetes. However, their association with cancer risk is unclear. The aim of this review was to analyze the anticancer potential of this class of drugs, as well as risks of site-specific malignancies associated with their use.

scholarly journals Obesity, Type 2 Diabetes, and Cancer Risk

2021 ◽  
Vol 10 ◽  
Author(s):  
Tiffany Scully ◽  
Abora Ettela ◽  
Derek LeRoith ◽  
Emily Jane Gallagher
Keyword(s):  
Insulin Resistance ◽  
Type 2 Diabetes ◽  
Adipose Tissue ◽  
Cancer Risk ◽  
Glucose Uptake ◽  
Cancer Progression ◽  
Metabolic Abnormalities ◽  
Obesity And Diabetes ◽  
Uptake And Metabolism

Obesity and type 2 diabetes have both been associated with increased cancer risk and are becoming increasingly prevalent. Metabolic abnormalities such as insulin resistance and dyslipidemia are associated with both obesity and type 2 diabetes and have been implicated in the obesity-cancer relationship. Multiple mechanisms have been proposed to link obesity and diabetes with cancer progression, including an increase in insulin/IGF-1 signaling, lipid and glucose uptake and metabolism, alterations in the profile of cytokines, chemokines, and adipokines, as well as changes in the adipose tissue directly adjacent to the cancer sites. This review aims to summarize and provide an update on the epidemiological and mechanistic evidence linking obesity and type 2 diabetes with cancer, focusing on the roles of insulin, lipids, and adipose tissue.

scholarly journals Assessment of the prognostic cancer risk in patients with type 2 diabetes mellitus

2021 ◽  
Vol 17 (1) ◽  
pp. 86-91
Author(s):  
T.S. Vatseba ◽  
L.K. Sokolova ◽  
N.M. Koshel
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Cancer Risk ◽  
Malignant Neoplasms ◽  
Increased Risk ◽  
Risk Of Cancer ◽  
Prognostic Power ◽  
Uterine Body

Background. The epidemiological analysis has shown an increased risk of cancer of the mammalian gland (MG), ute­rine body, and pancreas in patients with type 2 diabetes mellitus (T2DM). The different clinical characteristics and features of the course of DM, and schemes of treatment of patients with these types of oncological diseases (OD) were identified. The purpose of the study was to create a model of mathematical calculation and assessment of the predicted risk of cancer of MG, uterine body, pancreatic and colorectal cancer (CRC) in patients with T2DM, given the importance of diabetes-associated factors of oncogenesis. Materials and methods. The study included an analysis of medical records of patients with T2DM with first diagnosed OD during 2012–2016. The statistical analysis of the results was performed in the program Statistica 12.0 (StatSoft Inc., USA). The differences between indicators were determined by Student’s t-test, considered significant at p < 0.05. The method of multi-factor analysis and the logistic regression equation was used to calculate the coefficient of prognostic risk of the OD. Results. It was found that cancer of MG and the uterine body was most often diagnosed in people at the age of 60–70 years, with obesity, duration of DM more than 5 years, with HbA1c level > 7.5 %, on combination therapy with drugs without influence on the insulin synthesis with stimulators of insulin production. Patients with CRC had the same characteristics, without gender diffe­rences. Pancreatic cancer was most often diagnosed in patients aged 60–70 years, without obesity, with a duration of DM up to 5 years, with HbA1c > 7.5 %, on monotherapy with insulin or sulfonylureas, without gender differences. The created model for calculating the coefficient of the prognostic risk of MG and uterine body cancer is characterized by high prognostic power (accuracy 76.24 %), good prognostic power for cancer of the pancreas (accuracy 75.0 %), and CRC (accuracy 72.2 %). Conclusions. Correction of dysmetabolic disorders is a method of prevention of OD in patients with T2DM. The calculation of the predicted cancer risk will contribute to the prevention of malignant neoplasms in patients with T2DM.

scholarly journals Is Vitamin D Deficiency Related to Increased Cancer Risk in Patients with Type 2 Diabetes Mellitus?

2021 ◽  
Vol 22 (12) ◽  
pp. 6444
Author(s):  
Anna Gabryanczyk ◽  
Sylwia Klimczak ◽  
Izabela Szymczak-Pajor ◽  
Agnieszka Śliwińska
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Insulin Resistance ◽  
Type 2 Diabetes ◽  
Vitamin D ◽  
Cancer Risk ◽  
Vitamin D Deficiency ◽  
Cancer Development ◽  
Increased Risk

There is mounting evidence that type 2 diabetes mellitus (T2DM) is related with increased risk for the development of cancer. Apart from shared common risk factors typical for both diseases, diabetes driven factors including hyperinsulinemia, insulin resistance, hyperglycemia and low grade chronic inflammation are of great importance. Recently, vitamin D deficiency was reported to be associated with the pathogenesis of numerous diseases, including T2DM and cancer. However, little is known whether vitamin D deficiency may be responsible for elevated cancer risk development in T2DM patients. Therefore, the aim of the current review is to identify the molecular mechanisms by which vitamin D deficiency may contribute to cancer development in T2DM patients. Vitamin D via alleviation of insulin resistance, hyperglycemia, oxidative stress and inflammation reduces diabetes driven cancer risk factors. Moreover, vitamin D strengthens the DNA repair process, and regulates apoptosis and autophagy of cancer cells as well as signaling pathways involved in tumorigenesis i.e., tumor growth factor β (TGFβ), insulin-like growth factor (IGF) and Wnt-β-Cathenin. It should also be underlined that many types of cancer cells present alterations in vitamin D metabolism and action as a result of Vitamin D Receptor (VDR) and CYP27B1 expression dysregulation. Although, numerous studies revealed that adequate vitamin D concentration prevents or delays T2DM and cancer development, little is known how the vitamin affects cancer risk among T2DM patients. There is a pressing need for randomized clinical trials to clarify whether vitamin D deficiency may be a factor responsible for increased risk of cancer in T2DM patients, and whether the use of the vitamin by patients with diabetes and cancer may improve cancer prognosis and metabolic control of diabetes.

scholarly journals CANCER OF THE ORGANS OF THE REPRODUCTIVE SYSTEM IN WOMEN WITH TYPE 2 DIABETES. EFFECTS OF ANTIDIABETIC THERAPY

2020 ◽  
Vol 73 (5) ◽  
pp. 967-971
Author(s):  
Tamara S. Vatseba
Keyword(s):  
Type 2 Diabetes ◽  
Combination Therapy ◽  
Postmenopausal Women ◽  
Reproductive System ◽  
Uterine Cancer ◽  
Antidiabetic Therapy ◽  
Increased Risk ◽  
Risk Of Cancer ◽  
The Impact

The aim: to investigate the prevalence of cancer of the reproductive system in women with type 2 diabetes, and to examine the impact of antidiabetic therapy on cancer risk of this localization. Materials and methods: The study included a retrospective analysis of medical records of women with T2D with first diagnosed cancer during 2012-2016. The bases for the study were specialized medical institutions in Ivano-Frankivsk region. The obtained results were processed using statistical programs “Microsoft Excel” and “Statistika-12”. Results: Breast, uterine, and ovarian cancer were detected in 202 postmenopausal women, 63.92% from the total number of cancer cases in women. An increased risk of breast [OR = 1.24; 95% CI (1.04 – 1.50) P = 0.019] and uterine cancer [OR = 1.32; 95% CI (1.02 – 1.69) P = 0.040] has been identified. Most often, before the detection of cancer, women received combination therapy with sulfonylurea and metformin (83 patients (57.64%)) with BMI 32.64 ± 3.69 kg/m2. The difference between risk of cancer on metformin monotherapy and on sulfonylurea monotherapy [OR = 2.17; 95% CI (0.88 – 5.36) P = 0.141] or on combination therapy [OR = 1.68; 95% CI (0.76 – 3.74) P = 0.276] was not found. Conclusions: Postmenopausal women have an increased risk of breast and uterine cancer and are recommended to be screened for these diseases

scholarly journals Association of Bariatric Surgery With Cancer Incidence in Patients With Obesity and Diabetes: Long-term Results From the Swedish Obese Subjects Study

2021 ◽  
Author(s):  
Kajsa Sjöholm ◽  
Lena MS Carlsson ◽  
Per-Arne Svensson ◽  
Johanna C. Andersson-Assarsson ◽  
Felipe Kristensson ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Bariatric Surgery ◽  
Cancer Risk ◽  
Cancer Incidence ◽  
Diabetes Remission ◽  
Obesity And Diabetes ◽  
Obese Subjects

<b>OBJECTIVE</b> <p>Obesity and type 2 diabetes are associated with serious, adverse health effects, including cancer. Although bariatric surgery has been shown to reduce cancer risk in patients with obesity, the effect of bariatric surgery on cancer risk in patients with obesity and diabetes is less studied. We therefore examined the long-term incidence of cancer after bariatric surgery and usual care in patients with obesity and diabetes in the matched prospective Swedish Obese Subjects (SOS) study. </p> <p><b>RESEARCH DESIGN AND METHODS</b></p> <p>The SOS study examines long-term outcomes following bariatric surgery or usual care. The current analysis includes 701 patients with obesity and type 2 diabetes at baseline, 393 of which underwent bariatric surgery, and 308 who received conventional obesity treatment. Information on cancer events was obtained from the Swedish National Cancer Register. Median follow-up time was 21.3 years (interquartile range 17.6-24.8 years, maximum 30.7 years). </p> <p><b>RESULTS</b></p> <p>During follow-up, the incidence rate for first-time cancer was 9.1 per 1000-person-years (95% CI, 7.2-11.5) in patients with obesity and diabetes treated with bariatric surgery and 14.1 per 1000-person-years (95% CI, 11.2-17.7) in patients treated with usual obesity care (HRadj=0.63; 95% CI 0.44-0.89, p=0.008). Moreover, surgery was associated with reduced cancer incidence in women (HRadj=0.58; 0.38-0.90, p=0.016), although the sex-treatment interaction was non-significant (p=0.630). In addition, diabetes remission at the 10-year follow-up was associated with reduced cancer incidence (HRadj=0.40; 95% CI 0.22-0.74, p=0.003).</p> <p><b>CONCLUSIONS</b></p> <p>These results suggest that bariatric surgery prevents cancer in patients with obesity and diabetes, and that durable diabetes remission is associated with reduced cancer risk. </p>

scholarly journals Increased Risk of Site-Specific Cancer in People with Type 2 Diabetes: A National Cohort Study

2019 ◽  
Vol 17 (1) ◽  
pp. 246 ◽  
Author(s):  
Donata Linkeviciute-Ulinskiene ◽  
Ausvydas Patasius ◽  
Lina Zabuliene ◽  
Rimantas Stukas ◽  
Giedre Smailyte
Keyword(s):  
Type 2 Diabetes ◽  
Insurance Fund ◽  
Site Specific ◽  
Corpus Uteri ◽  
Increased Risk ◽  
Specific Cancer ◽  
National Cohort ◽  
Risk Of Cancer ◽  
Increase In Risk

A retrospective cohort design was used with the objective to evaluate cancer risk among people with type 2 diabetes mellitus (T2DM) in Lithuania. The cohort was established by identifying all patients with the first diagnosis of T2DM in the National Health Insurance Fund database during 2000–2012. Cancer cases were identified by record linkage with the Lithuanian Cancer Registry. Standardized incidence ratios (SIRs) were calculated. Of the 127,290 people that were included, 5959 cases of cancer in men and 6661 cancer cases in women with T2DM were observed. A statistically significant increase in risk for all cancer sites was observed in women, SIR 1.16 (95% CI 1.14–1.19), but not in men, SIR 1.00 (95% CI 0.98–1.03). Among males, a significant increase of liver (SIR 2.11, 95% CI 1.79–2.49]), pancreas (SIR 1.77, 95% CI 1.57–1.99), kidney (SIR 1.46 95% CI 1.31–1.62), thyroid (SIR 1.83, 95% CI 1.32–2.54), colorectal (SIR 1.23, 95% CI 1.14–1.31]), skin melanoma (SIR 1.40, 95% CI 1.11–1.76), and non–melanoma skin (SIR 1.14, 95% CI 1.05–1.23) cancer was observed. For females with T2DM, a significant increase in risk of cancer of the liver (SIR 1.45, 95% CI 1.17–1.79), pancreas (SIR 1.74, 95% CI 1.56–1.93), kidney (SIR = 1.43, 95% CI 1.28–1.60), thyroid (SIR = 1.40, 95% CI 1.22–1.62), breast (SIR = 1.24, 95% CI 1.17–1.31), and corpus uteri (SIR 2.07, 95% CI 1.93–2.21) was observed. In conclusion, people with T2DM in Lithuania had an increased risk of site-specific cancer.

The Increased Risk of Cancer in Obesity and Type 2 Diabetes: Potential Mechanisms

2009 ◽  
pp. 579-599 ◽  
Author(s):  
Emily Jane Gallagher ◽  
Ruslan Novosyadlyy ◽  
Shoshana Yakar ◽  
Derek LeRoith
Keyword(s):  
Type 2 Diabetes ◽  
Increased Risk ◽  
Risk Of Cancer

Anti-diabetic Treatment in Obese Patients with Type 2 Diabetes Effects of Medication on Body Weight

2006 ◽  
Vol 00 (02) ◽  
Author(s):  
Andrew J Krentz
Keyword(s):  
Physical Activity ◽  
Type 2 Diabetes ◽  
Weight Loss ◽  
Vascular Complications ◽  
Obese Patients ◽  
Intentional Weight Loss ◽  
Increased Risk ◽  
Potential Benefits ◽  
Diabetic Treatment

Obesity is a major risk factor for the development of type 2 diabetes;1–3moreover, the presence of obesity in type 2 diabetes is associated with an increased risk of vascular complications associated with the disorder.4,5The majority of patients are overweight or obese at diagnosis of type2diabetes. Recent clinical trials have demonstrated that progression to diabetes in obese patients with impaired glucose tolerance can be prevented through weight reduction and increased levels of physical activity.6,7For patients who have developed type 2 diabetes, intentional weight loss has many potential benefits including improved metabolic control and a reduced need for antidiabetic medications.8–10

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