Chronic inflammation is suggested to play an important role in the pathogenesis of many chronic conditions. Chronic inflammatory biomarker Myeloperoxidase (MPO) has been reported in several studies that have investigated its role in cardiopulmonary events. However, there are limited studies that investigated its relationship with type 2 diabetes.
In this text the relationship between plasma MPO concentration and lifestyle and socioeconomic factors and incident type 2 diabetes mellitus in the Malmö diet and cancer cohort (MDC) will be investigated.
In order to do this a prospective cohort study of 4544 participants was drawn from MDC cardiovascular sub-cohort, with no type 2 diabetes at baseline between 1991 and 1996. Plasma MPO concentration were measured using Olink CVD kit. The cox proportional hazard regression analysis was used to determine the relationship of plasma MPO concentration with incident type 2 diabetes.
Table of Contents
1. Introduction
2. Public health relevance
3. Aim of the study
4. Objectives
5. Method and Material
5.1 Study sample
5.2 Consent
5.3 Identification of incident diabetes
5.4 Biochemical MPO analysis
5.5 Measurements and definition of variables
5.6 Statistical analysis
6. Results
7. Discussion
7.1 Strengths and limitations of the study
7.2 Clinical implications
8. Conclusion
9. References
Research Objectives and Core Themes
The primary aim of this research is to investigate the association between circulating levels of Myeloperoxidase (MPO)—a biomarker of chronic inflammation—and the risk of developing incident type 2 diabetes mellitus within the Malmö diet and cancer cohort (MDC).
- Analysis of the relationship between plasma MPO concentration and socioeconomic/lifestyle factors.
- Evaluation of MPO as a potential predictor for incident type 2 diabetes.
- Application of Cox proportional hazard regression to quantify risk based on MPO quartiles.
- Investigation into how variables like age, BMI, and HbA1c correlate with chronic inflammatory markers.
- Assessment of the clinical implications for early identification of diabetes risk.
Excerpt from the Book
INTRODUCTION
According to the World Health Organisation (WHO), the estimated global diabetes prevalence in 2014 was 9% among adults 18 years or older and in 2012 diabetic attributable deaths were estimated at 1.5 million. More than 80% of these deaths occur in low and middle income countries and it was projected that it will be the 7th leading lone cause of death in 2030(1). Globally type 2 diabetes comprises 90% of the total diabetic patient population; type 2 diabetes is attributed to obesity and sedentary lifestyle(1). Unabated diabetes is associated with poor prognosis, resulting from morbidity and mortality which compromises the quality of life. It requires high costs to control diabetes and treatment of its acute and chronic complications(2). All diabetes prevalence in Sweden was estimated to be 6.8% in 2013 and projected to be 10.4% by the year 2050 affecting over 940000 individuals(3).
Diabetes is a chronic metabolic disorder that occurs when the pancreas does not produce insulin or when the body cannot effectively utilize the insulin produced(4). Insulin is a hormone required for the glucose in blood to be transformed into energy by the body cells. Type 2 diabetes is characterized by insulin resistance by target organs and less insulin production by the pancreas.
Inflammation is a protective response which involves host cells, blood vessels and proteins with primary intent to remove cause of injury, eradicate dead body cells and tissue and again start off the process of repair. It is a localized protective response to trauma or microbial invasion that destroys, dilutes or shields off the injurious agent and the injured tissue(5). The process is normally controlled and self-limited. It is characterised by redness, hotness, swelling, loss of function and pain often localized to the affected area. This process can occur in response to mechanical trauma, toxins and neoplasia. Excessive inflammation may cause abnormal recognition of host tissue as foreign or chronic inflammatory process may lead to inflammatory diseases such as type 2 diabetes, atherosclerosis and Alzheimer’s disease and syndromes such as rheumatic fever and rheumatic heart disease(5).
Summary of Chapters
Introduction: Provides an overview of the global diabetes burden and establishes the physiological connection between inflammation, oxidative stress, and insulin resistance.
Public health relevance: Emphasizes the importance of controlling inflammatory processes to mitigate the future risk and economic burden of type 2 diabetes.
Aim of the study: Defines the research intent to analyze MPO plasma biomarkers within the Malmö diet and cancer cohort to understand their link to diabetes incidence.
Objectives: Outlines the specific goals of examining MPO's relationship with lifestyle factors and its predictive value for incident diabetes.
Method and Material: Describes the prospective cohort study design, participant selection from the MDC sub-cohort, and the usage of Olink CVD kits for biomarker analysis.
Results: Reports the statistical findings, identifying a significant association between higher MPO quartile levels and increased risk of incident type 2 diabetes.
Discussion: Interprets the study results in the context of existing literature, addressing factors like age, obesity, and smoking, while acknowledging the study's limitations.
Conclusion: Summarizes that MPO is associated with diabetes risk and suggests further research into the underlying pathophysiology before recommending it for clinical screening.
Keywords
Myeloperoxidase, MPO, Type 2 Diabetes, Chronic Inflammation, Malmö Diet and Cancer Cohort, Biomarker, Insulin Resistance, Cardiovascular Disease, Proximity Extension Assay, Oxidative Stress, Metabolic Disorder, Prospective Cohort Study, Hazard Ratio, Public Health, HbA1c.
Frequently Asked Questions
What is the primary focus of this research study?
The study examines the relationship between circulating levels of the chronic inflammatory biomarker Myeloperoxidase (MPO) and the development of type 2 diabetes in a Swedish population cohort.
What are the central themes discussed in the paper?
The central themes include the role of systemic inflammation, the pathogenesis of diabetes, the impact of lifestyle and socioeconomic factors on inflammatory markers, and the prognostic value of biochemical biomarkers.
What is the core objective of the investigation?
The main objective is to determine if elevated plasma MPO concentrations are associated with a higher risk of incident type 2 diabetes, using data from the Malmö diet and cancer cohort.
Which scientific methodology was utilized?
The researchers conducted a prospective cohort study using 4,544 participants. They measured MPO using the Proximity Extension Assay (PEA) technology and performed Cox proportional hazard regression analysis to calculate risk.
What does the main body of the text address?
The main body covers the theoretical background of diabetes and inflammation, details the methodology for sample processing and statistical analysis, and presents the results concerning participant characteristics and hazard ratios.
Which keywords best characterize this work?
Key terms include Myeloperoxidase (MPO), Type 2 Diabetes, chronic inflammation, biomarkers, metabolic health, and the Malmö diet and cancer cohort.
Did the study find that MPO levels are affected by age or BMI?
Yes, the study observed that MPO concentrations increased with age and that BMI, as a marker of obesity, showed a significant upward trend across MPO quartiles.
What did the study conclude regarding the link between smoking and MPO?
While the association between smoking and MPO was not statistically significant in this specific sample, the researchers noted higher percentages of smokers in the highest MPO quartile and did not rule out a potential association.
How does education level correlate with MPO according to the findings?
The study found that MPO concentration generally decreases with higher education levels, suggesting that socioeconomic factors and occupation may play a role in reducing risk exposure.
What is the main limitation identified by the authors?
The primary limitation is the lack of follow-up plasma MPO analysis, which prevented the researchers from determining if individuals maintained their baseline MPO status over time until the diabetes endpoint.
- Quote paper
- Perez Kisakye Katambala (Author), 2016, The association between circulating levels of myeloperoxidase and type 2 diabetes in the Malmö diet and cancer cohort. An Assessment, Munich, GRIN Verlag, https://www.grin.com/document/338105
