scholarly journals Non-invasive, Complex Examination of Micro- and Macrovascular System of Patients with Type 1 Diabetes Mellitus with or Without Vascular Complications

2015 ◽  
Vol 1 (1) ◽  
pp. 12-22 ◽  
Author(s):  
Petra Gulácsi-Bárdos ◽  
Éva Nieszner ◽  
Emese Tóth-Zsámboki ◽  
Katarína Vargová ◽  
Sarolta Leé ◽  
...  

Abstract Objective: We examined the vascular system, from the microvasculature to the aorta, in diabetes mellitus, using non-invasive methods. Methods: We enrolled patients with type 1 diabetes: 17 patients without complications (DMW) and 19 patients with clinically manifest complications (DMC). Control group was represented by 34 healthy volunteers (C). We examined microvascular function with laser-Doppler flowmetry, using post-occlusive reactive hyperemia test and local heating. Arterial stiffness was studied by arteriograph, determining augmentation index and pulse wave velocity. We measured serum levels of sE-selectin and sICAM-1, markers of endothelial dysfunction. Results: Microvascular reactivity was significantly reduced in DMC-, and tendentiously in DMW groups. sE-selectin level was significantly higher in DMC group than in controls. Arterial stiffness was the highest in the DMC group and the lowest in the DMW group. Heart rate was significantly higher in both diabetic groups compared to controls. Time to maximum flow during PORH test tended to be the shortest in DMW group. Conclusions: Our results confirm impairment of the microvascular system in diabetic patients, even in early, uncomplicated stage of the disease, and might demonstrate diffuse hyperkinesis in the vascular system, resulting from the insulin effect or refering to the “vasodilation phase” of diabetes mellitus.

2019 ◽  
Vol 32 (12) ◽  
pp. 1341-1350 ◽  
Author(s):  
Junghwan Suh ◽  
Han Saem Choi ◽  
Ahreum Kwon ◽  
Hyun Wook Chae ◽  
Soyong Eom ◽  
...  

Abstract Background Previous studies investigating the beneficial effects of exercise in type 1 diabetes mellitus (T1DM) are relatively insufficient compared to studies on type 2 diabetes mellitus (T2DM), due to the fear of hypoglycemia. Recently, several researchers have reported that combined aerobic and resistance exercise prevents hypoglycemia during and after exercise. Furthermore, exercise has been shown to have beneficial effects on the psychological status of patients with various diseases. The aim of this study was to evaluate the effect of combined aerobic and resistance exercise in adolescents with T1DM. Methods Thirty-five type 1 diabetic patients were enrolled, and subjects were divided into either an exercise group or a control group. Thirty patients (20 patients in the exercise group, 10 patients in the control group) completed the study. The exercise program was performed for 1 h at a time, once a week, for 12 weeks. Study parameters were evaluated at baseline and 3 months after baseline evaluation. Results Combined aerobic and resistance exercise better controlled the body mass index (BMI), and also improved maximum muscular strength and maximum exercise intensity. On psychological tests, subjects’ attention and quality of life showed improving tendency, while their stress and behavioral problems diminished. The number of exercise events increased in the training group, while the daily total insulin dose and glycated hemoglobin (HbA1c) level showed no significant changes. Conclusions A 12-week structured exercise program consisting of aerobic and resistance exercises improves cardiovascular, neurocognitive and psychobehavioral functions, and positively helps lifestyle modification in patients with T1DM.


2021 ◽  
Vol 67 (3) ◽  
pp. 201-203
Author(s):  
Jianjun Li ◽  
Xiaoxiao Li ◽  
Xiaoming Qiao

Type 1 diabetes mellitus, also called insulin-dependent diabetes is associated with elevated blood glucose concentration arising from the inability of the pancreas to produce insulin. Diabetic cardiomyopathy is a major cause of death in diabetic patients. CircRNAs have been reported to participate in various human diseases, including diabetic cardiomyopathy. In this study, the regulation network of circRNA in type 1 diabetes mellitus was investigated. Streptozotocin treatment was implemented to induce type 1 diabetes mellitus in the mouse model, and echocardiography was implemented to detect the heart function of the type 1 diabetes mellitus mouse. Also, the qRT-PCR assay was used to identify the circRNA expression in type 1 diabetes mellitus mouse myocardial tissue. Findings showed that heart function of type 1 diabetes mellitus mouse was significantly damaged than control group mouse and cardiac hypertrophy in type 1 diabetes mellitus mouse, circRNAs were aberrantly regulated in type 1 diabetes mellitus mouse myocardial tissue. The following circRNAs were mmu_circ_0001560, mmu_circ_0001800, mmu_circ_0001801, mmu_circ_0002281 and mmu_circ_0000614 were expressed low in type 1 diabetes mellitus mouse myocardial tissue. In conclusion, type 1 diabetes mellitus caused alterations in the regulation network of circRNAs.


2021 ◽  
Vol 1 (7(71)) ◽  
pp. 25-29
Author(s):  
Z. Olesia

The purpose was to define the clinical peculiarities of bacterial keratitis in patients with type 1 diabetes mellitus (DM1) at visit 1.  Methods. We retrospectively reviewed the results of 62 DM1 patients (62 eyes) with bacterial keratitis and 43 nondiabetic patients (43 eyes) with bacterial keratitis of the control group who were referred for visit 1 (before administering the treatment). Research methods were as follows: visual acuity, tonometry, slit-lamp biomicroscopy of anterior and posterior eye segments, bacteriological studies, fluorescein dye test, anterior eye OCT and non-contact corneal esthesiometry.  Results. Compared to nondiabetic, DM1 patients with bacterial keratitis showed higher degree of inflammatory reaction in the anterior chamber of the eye at visit 1 (p<0.05) as well as 28.8% lower mean corneal sensitivity threshold (p<0.05). At visit 1, the degree of decreasing of corneal sensitivity in DM1 patients with bacterial keratitis was higher than in control group (p<0.05). Localization of bacterial keratitis, the degree of pericorneal injection, corneal ulcer defect size and depth, corneal infiltration as well as edema of the corneal tissue surrounding the ulcer did not depend on the presence of diabetes mellitus (р>0,05) at visit 1. Conclusions. There are clinical peculiarities of bacterial keratitis in patients with type 1 diabetes mellitus at visit 1.  


2012 ◽  
Vol 58 (4) ◽  
pp. 14-17
Author(s):  
O I Kopylova ◽  
T L Kuraeva ◽  
E Iu Lavrikova ◽  
E V Titovich ◽  
A G Nikitin ◽  
...  

The risk of devolvement of type 1 diabetes mellitus (DM1) remains a challenging problem because neither etiology of the disease nor its prognosis and genetic predisposition to this condition are clearly understood. The development of any autoimmune process starts from the disturbance of subtle molecular mechanisms involved in the regulation of the immune system. Therefore, the genes controlling the function of its major components are at the same time the potential candidate genes encoding for the predisposition to DM1. Their association with the disease was studied by means of comparative analysis of the frequency distribution of alleles and genotypes of the polymorphous rs3087243 (G6230A) marker of the CTLA4 gene encoding for antigen-4 of cytotoxic T-lymphocytes. The present study included 257 patients presenting with type 1 diabetes mellitus and 526 healthy subjects. Genotypes were identified by the "real time" amplification technique. The AA genotype was found to occur less frequently in the diabetic patients than in the control group (11.3% and 22.1% respectively). In contrast, the frequency of the GG genotype was higher in the patients with DM1 than in the healthy subjects (44.7% and 37.5% respectively). It is concluded that the polymorphous rs3087243 marker of the CTLA4 gene is significantly associated with the predisposition to the development of type 1 diabetes mellitus in the patients of Russian descent.


2021 ◽  
Author(s):  
Olesia Zavoloka

Abstract The purpose was to define the clinical peculiarities of bacterial keratitis in patients with type 1 diabetes mellitus (DM1) at visit 1. Methods. We retrospectively reviewed the results of 62 DM1 patients (62 eyes) with bacterial keratitis and 43 nondiabetic patients (43 eyes) with bacterial keratitis of the control group who were referred for visit 1 (before administering the treatment). Research methods were as follows: visual acuity, tonometry, slit-lamp biomicroscopy of anterior and posterior eye segments, bacteriological studies, fluorescein dye test, anterior eye OCT and non-contact corneal esthesiometry. Results. Compared to nondiabetic, DM1 patients with bacterial keratitis showed higher degree of inflammatory reaction in the anterior chamber of the eye at visit 1 (p<0.05) as well as 28.8% lower mean corneal sensitivity threshold (p<0.05). At visit 1, the degree of decreasing of corneal sensitivity in DM1 patients with bacterial keratitis was higher than in control group (p<0.05). Localization of bacterial keratitis, the degree of pericorneal injection, corneal ulcer defect size and depth, corneal infiltration as well as edema of the corneal tissue surrounding the ulcer did not depend on the presence of diabetes mellitus (р>0,05) at visit 1.Conclusions. There are clinical peculiarities of bacterial keratitis in patients with type 1 diabetes mellitus at visit 1.


2019 ◽  
Author(s):  
Karina Sarkisova ◽  
Iwona-Renata Jarek-Martynowa ◽  
Marina Shestakova ◽  
Minara Shamkhalova ◽  
Alexander Parfenov

2019 ◽  
Vol 24 (2) ◽  
pp. 108-119 ◽  
Author(s):  
B. N. Davydov ◽  
D. A. Domenyuk ◽  
S. V. Dmitrienko

Relevance. Morpho-functional changes in peripheral circulation established in type 1 diabetes mellitus correlate with changes in central hemodynamics, allowing the use of microcirculation indicators as diagnostic and prognostic criteria for assessing the degree of functional vascular disorders. Identifcation of microcirculation features of the blood by the method of laser Doppler flowmetry in children with different experience of type 1 diabetes in key age categories.Materials and methods. The study included 67 children with type 1 diabetes mellitus aged 12-15 years with an experience of the disease from six months to ten years. The comparison group consisted of 38 healthy children. The state of the microvasculature was assessed by laser Doppler flowmetry using a laser analyzer for capillary blood flow LAKK-OP.Results. In children with an experience of type 1 diabetes of less than two years, microcirculation disorders in periodontal tissues correspond to the hyperemic form, accompanied by increased perfusion, a decrease in the amplitude of low-frequency oscillations, increased heart rate, high blood flling, and blood flow bypass. For children with an endocrinopathy experience of more than three years, microcirculation disorders correspond to a stagnant form, combined with a decrease in perfusion due to stagnation of blood in the venular link, endothelial domination with suppression of neurogenic and cardiac fluctuations, low efciency and redistribution of blood flow in favor of the nutritive link.Conclusions. With the increase in experience, the degree of compensation of type 1 diabetes, the progression of diabetic microangiopathy, it is advisable to designate two stages of development of microcirculatory disorders. Early – compensatory with active adaptation, including neurogenic and endothelial regulation mechanisms. Late – decompensation with passive adaptation, supporting the effectiveness of microcirculation due to myogenic control of regulation, shunting and increasing the rate of blood outflow.


Open Medicine ◽  
2009 ◽  
Vol 4 (4) ◽  
pp. 415-422
Author(s):  
Kamile Gul ◽  
Ihsan Ustun ◽  
Yusuf Aydin ◽  
Dilek Berker ◽  
Halil Erol ◽  
...  

AbstractThe aim of the study was to determine the frequency and titers of anti-thyroid peroxidase (Anti-TPO), anti-thyroglobulin (Anti-TG), and anti-glutamic acid decarboxylase (Anti-GAD) antibodies in Turkish patients with type 1 diabetes mellitus (DM), and to compare the frequency of anti-TPO and anti-TG titers in the presence or absence of anti-GAD. A total of 104 patients including 56 males and 48 females with type 1 DM and their age-, gender-, and body mass index-matched control group, including 31 males and 27 females, 58 cases in total with an age range of 15-50 years, were recruited into this study. In patients with type 1 DM, positive anti-GAD was detected in 30.8% (n=32). In patients with positive anti-GAD, rate of positive anti-TPO was 37.5%; however, in patients with negative anti-GAD, the rate of positive anti-TPO was 9.7% and the difference was statistically significant (p=0.001). In patients with positive anti-GAD, the rate of positive anti-TG was 18.8%. In patients with negative anti-GAD, the rate of positive anti-TG was 2.8%, and the difference between them was statistically significant (p=0.005). In patients with positive and negative anti-GAD, rates of both positive anti-TPO and anti-TG were 15.6% and 1.4%, respectively, with the difference showing statistical significance (p=0.004). Thyroid autoimmunity in type 1 DM patients with positive anti-GAD was apparently higher; therefore, these patients should be followed more frequently and carefully.


Author(s):  
O. V. Zavoloka

The aim. To identify the features of corneal sensitivity of the sick and the fellow eye in bacterial keratitis patients with or without diabetes mellitus. Materials and methods. The analysis was performed on the basis of survey data of 62 type 1 diabetes patients with bacterial keratitis and 43 nondiabetic control patients with bacterial keratitis. The examination was performed at the first visit. In addition to standard ophthalmic examination, the patients underwent fluorescein test, OCT of the anterior segment of the eye, non-contact corneal aesthesiometry. Results and discussion. The average corneal sensitivity threshold in diabetic patients with bacterial keratitis at the first visit at all air flow temperatures exceeded the corresponding indicators in nondiabetic patients of the control group: by 33.5% at an air temperature of 5 °C, by 30.6% at 15 °C, by 28.8% at 20 °C, by 27% at 30 °C, and by 26.1% at 40 °C (p<0.05). The average corneal sensitivity threshold at a temperature of 20 °C in the fellow eye in diabetic patients with bacterial keratitis exceeded that in nondiabetic patients with bacterial keratitis of the control group by 32.9 % (p<0.05). Conclusions. Corneal sensitivity of the sick and fellow eye in patients with bacterial keratitis depends on the presence of diabetes mellitus. The average threshold of corneal sensitivity of the sick and fellow eye in diabetic patients with bacterial keratitis at the first visit exceeds the corresponding values in nondiabetic patients with bacterial keratitis. Keywords: diabetes mellitus, bacterial keratitis, corneal sensitivity.


2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Agnieszka Kowalska ◽  
Katarzyna Piechowiak ◽  
Anna Ramotowska ◽  
Agnieszka Szypowska

Background. The ELKa system is composed of computer software, with a database of nutrients, and a dedicated USB kitchen scale. It was designed to automatize the everyday calculations of food exchanges and prandial insulin doses. Aim. To investigate the influence of the ELKa on metabolic control in children with type 1 diabetes mellitus (T1DM). Methods. A randomized, parallel, open-label clinical trial involved 106 patients aged <18 years with T1DM, HbA1C≤10%, undergoing intensive insulin therapy, allocated to the intervention group, who used the ELKa (n=53), or the control group (n=53), who used conventional calculation methods. Results. After the 26-week follow-up, the intention-to-treat analysis showed no differences to all endpoints. In per protocol analysis, 22/53 (41.5%) patients reporting ELKa usage for >50% of meals achieved lower HbA1C levels (P=0.002), lower basal insulin amounts (P=0.049), and lower intrasubject standard deviation of blood glucose levels (P=0.023) in comparison with the control. Moreover, in the intervention group, significant reduction of HbA1C level, by 0.55% point (P=0.002), was noted. No intergroup differences were found in the hypoglycemic episodes, BMI-SDS, bolus insulin dosage, and total daily insulin dosage. Conclusions. The ELKa system improves metabolic control in children with T1DM under regular usage. The trial is registered at ClinicalTrials.gov, number NCT02194517.


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