Diabetes mellitus (DM) is a frequent medical problem, affecting more than 4% of the population in most countries. In the context of diabetes, the vascular endothelium can play a crucial pathophysiological role. If a healthy endothelium—which is a dynamic endocrine organ with autocrine and paracrine activity—regulates vascular tone and permeability and assures a proper balance between coagulation and fibrinolysis, and vasodilation and vasoconstriction, then, in contrast, a dysfunctional endothelium has received increasing attention as a potential contributor to the pathogenesis of vascular disease in diabetes. Hyperglycemia is indicated to be the major causative factor in the development of endothelial dysfunction. Furthermore, many shreds of evidence suggest that the progression of insulin resistance in type 2 diabetes is parallel to the advancement of endothelial dysfunction in atherosclerosis. To present the state-of-the-art data regarding endothelial dysfunction in diabetic micro- and macroangiopathy, we constructed this literature review based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). We interrogated five medical databases: Elsevier, PubMed, PMC, PEDro, and ISI Web of Science.

Human movement is a complex and multifactorial process due to the interaction between the body and the environment. Movement is the result of activities of all the structures that make up a joint (i.e., ligaments, tendons, muscles, fascicles, blood vessels, nerves, etc.) and of the control actions of the nervous system on them. Therefore, many pathological conditions can affect the Neu-ro-Myo-Arthro-Kinetic System (NMAK). Osteoarthritis (OA) is the degenerative form of arthritis with a high incidence and a pro-longed course that affects articular and periarticular tissues such as articular cartilage, subchondral bone, and synovium, a degen-erative consequence. Instead, Rheumatoid arthritis (RA) is an immune-mediated synovial disease caused by a complex interaction between genetic and environmental factors. This review aims to compare Osteoar-thritis (OA) and Rheumatoid Arthritis (RA) in terms of pathogenesis and microenvironment and determine the main changes in a joint microenvironment regarding immunological defense elements and bioenergetics which can explain the pathological development with new thera-peutical opportunities. Keywords: Osteoarthritis (OA); Rheumatoid arthritis (RA); Homeostatic imbalances; Microenvironment

Human movement is a complex and multifactorial process due to the interaction between the body and the environment. Movement is the result of activities of all the structures that make up a joint (i.e., ligaments, tendons, muscles, fascicles, blood vessels, nerves, etc.) and of the control actions of the nervous system on them. Therefore, many pathological conditions can affect the Neu-ro-Myo-Arthro-Kinetic System (NMAK). Osteoarthritis (OA) is the degenerative form of arthritis with a high incidence and a pro-longed course that affects articular and periarticular tissues such as articular cartilage, subchondral bone, and synovium, a degen-erative consequence. Instead, Rheumatoid arthritis (RA) is an immune-mediated synovial disease caused by a complex interaction between genetic and environmental factors. This review aims to compare Osteoar-thritis (OA) and Rheumatoid Arthritis (RA) in terms of pathogenesis and microenvironment and determine the main changes in a joint microenvironment regarding immunological defense elements and bioenergetics which can explain the pathological development with new thera-peutical opportunities. Keywords: Osteoarthritis (OA); Rheumatoid arthritis (RA); Homeostatic imbalances; Microenvironment