RESUMO
Arterial hypertension combined with obesity is a very common form of comorbid disease in most countries all over the world. The combination of these diseases is characterized by mutual burdening of remodelling processes in important target organs, what greatly increases the risk of cardiovascular complications and death. The mechanisms of injury progression to vital organs in essential hypertension (EH) and obesity have some common features. The most important risk factors of target organs damage are hemodynamic and neurohumoral: inflammatory, effectors of the renin- angiotensin-aldosterone system, insulin resistance and others. Polyethiologic remodelling, lack of knowledge concerning violations in structural and functional status of important target organs and mechanisms of the interactions of their progression with this comorbidity require further study of these issues. The objective of the study was the comparative study of the state of integral indicators of structural and functional state of the heart, blood vessels and liver in patients with EH second stage with normal body weight and with concomitant obesity I and II degrees. This study found that the presence of obesity I and II in patients with EH stage II is associated with the concentric type of left ventricular hypertrophy, saved by its ejection fraction and impaired diastolic filling processes. For the patients with EH in the early stages of obesity the following characteristics are quite typical: considerable increase of intima media thickness in the carotid arteries, increasing the stiffness in the main arteries and liver parenchyma, impaired of the functional state of endothelial.
Assuntos
Vasos Sanguíneos/fisiopatologia , Coração/fisiopatologia , Hipertensão/patologia , Obesidade/patologia , Adulto , Aterosclerose/fisiopatologia , Espessura Intima-Media Carotídea , Hipertensão Essencial , Humanos , Hipertensão/complicações , Resistência à Insulina , Fígado/patologia , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Sistema Renina-AngiotensinaRESUMO
The study involved 53 patients with arterial hypertension in chronic kidney disease (chronic glomerulonephritis (CGN)). Lipid peroxidation was studied based on the content of diene conjugates and malondialdehyde. Protein peroxidation was studied based on the content of 2,4-dinitphenyl-aldogidrazons. The patients in all clinical variants of the CGN revealed increased activity of lipid peroxidation and the protein peroxidation, which is most pronounced in patients with nephrotic variant of CGN: increased levels of serum malondialdehyde medians occurred in 3.92 times and diene conjugates in 1.52 times (p<0.01). Increased activity of the oxidation of lipids and proteins has a negative impact on the organization of cell membranes of the renal structures and leads to loss of membrane barrier function.