Assessment of selected muscle damage markers and zonulin concentration after maximum-intensity exercise in men with type 1 diabetes treated with a personal insulin pump.

AIM: Exercise-induced muscle damage depends on exercise intensity and duration and on individual susceptibility. Mechanical and metabolic stress may disturb the intestinal microflora. The study evaluated selected muscle damage markers and zonulin concentration after maximum-intensity exercise in type 1 diabetes (T1D) men compared with healthy controls. METHODS: The study involved 16 T1D participants and 28 controls matched by age (22.7 [21.3-25.1] vs. 22.6 [20.9-26.3] years), body mass index (24.2 ± 1.6 vs. 24.2 ± 1.9 kg/m2), and body fat percentage (16.1 ± 5.2 vs. 14.9 ± 4.6%). The T1D group had 11.3 ± 5.1 years of diabetes duration and a suboptimal mean glycated haemoglobin level of 7.2 ± 1.1%. The subjects underwent a graded running treadmill test until exhaustion. Lactate concentration was assessed in arterialized blood at baseline and 3 and 20 min after the test. Cortisol, testosterone, tumour necrosis factor α, myoglobin, lactate dehydrogenase, zonulin, and vitamin D levels were evaluated in cubital fossa vein blood before and 60 min after the test. RESULTS: T1D patients presented higher baseline zonulin, myoglobin concentration, testosterone/cortisol ratio, and lower maximal oxygen uptake. On adjusting for the baseline values, the groups differed in zonulin, lactate dehydrogenase, and myoglobin levels, testosterone/cortisol ratio, and lactate concentration determined 20 min after exercise (P < 0.05). CONCLUSION: Maximum-intensity exercise increased muscle and intestinal damage in T1D participants. In patients with lower physical activity, very-high-intensity exercise should be recommended with caution. Observing the anabolic-catabolic index may help individualize effort intensity in T1D individuals.

Improvement of Selected Psychological Parameters and Quality of Life of Patients With Type 1 Diabetes Mellitus Undergoing Transition From Multiple Daily Injections and Self-Monitoring of Blood Glucose Directly to the MiniMed 780G Advanced Hybrid Closed-Loop System: Post hoc Analysis of a Randomized Control Study.

BACKGROUND: While introducing new technologies and methods of treatment for type 1 diabetes mellitus (T1DM), it seems essential to monitor whether modern technologies in diabetes treatment may improve the psychological and emotional status of patients. OBJECTIVE: This study aims to assess the baseline psychological parameters of patients with T1DM during investigation of the direct transition from multiple daily injections (MDI) and self-monitoring of blood glucose (SMBG) to the MiniMed 780G advanced hybrid closed-loop (AHCL) system and to evaluate changes in the psychological well-being and quality of life (QoL) after the transition in these individuals versus the control group. METHODS: The trial was a 2-center, randomized controlled, parallel group study. In total, 41 patients with T1DM managed with MDI or SMBG were enrolled and randomized either to the AHCL or the MDI+SMBG group. Of these, 37 (90%) participants (mean age 40.3 years, SD 8.0 years; mean duration of diabetes 17.3, SD 12.1 years; mean hemoglobin A1c [HbA1c] 7.2%, SD 1.0%) completed the study (AHCL: n=20, 54%; MDI+SMBG: n=17, 46%). Psychological parameters (level of stress, coping mechanisms, level of anxiety, self-efficacy level, acceptance of illness, locus of control of illness, life satisfaction, QoL) were measured at baseline and at the end of the study using 10 psychological questionnaires. RESULTS: At baseline, the general level of stress of the examined patients was higher than in the general healthy Polish population (P=.001), but coping strategies used in stressful situations were significantly more effective and the level of self-efficacy (P<.001) was much higher than in the general population. The patients in this study accepted their illness more than patients with diabetes from the general Polish population (P<.001), but they felt that their health does not depend on them compared to the general population (P<.001). The overall life satisfaction was similar to that of the general population (P=.161). After 3 months from transition, the AHCL group reported an increase in 4 scales of the QoL-feeling well (P=.042), working (P=.012), eating as I would like (P=.011), and doing normal things (P=.034)-in comparison to the control group, where no significant change occurred. The level of both state anxiety and trait anxiety decreased in the AHCL group: State-Trait Anxiety Inventory (STAI) X1 scores (P=.009), STAI X1 stens (P=.013), and STAI X2 scores (P=.022). The AHCL group became more emotion oriented in stressful situations (Coping Inventory for Stressful Situations [CISS] E; P=.043) and significantly less self-blaming after 3 months of the study (P=.020). CONCLUSIONS: The results indicate that the patients who decided to take part in the transition study were characterized by higher levels of stress than the general healthy population but had better coping strategies and self-efficacy. Furthermore, transitioning from MDI+SMBG treatment to the AHCL in patients naive to technology may significantly improve psychological well-being and QoL within 3 months. The rapidity of these changes suggests that they may be related to the significant improvement in glycemic outcomes but also significantly less burdened diabetes self-management. TRIAL REGISTRATION: ClinicalTrials.gov NCT04616391; https://clinicaltrials.gov/ct2/show/NCT04616391.

Assessment of selected food intake frequency in patients with type 1 diabetes treated with personal insulin pumps

Background: It has been established that in Type 1 Diabetes Mellitus (T1DM), regardless of the insulin therapy model used, diet and proper eating habits are still important in the treatment of the disease. The dietary intervention in these patients is aimed at maintaining proper body weight, obtaining target fasting and post meal blood glucose levels, optimizing lipid profiles. Objective: The aim of the study was to assess dietary habits in a homogeneous group of adults with T1DM treated with personal insulin pumps. Material and methods: The study included 141 adult patients (57% women) with type 1 diabetes treated with personal insulin pumps. The surveyed population was characterized by an average age of 25.8 ± 6.2 years, an average duration of diabetes 13.9 ± 6.9 years, and treatment with a personal pump for 8.2 ± 4.1 years and mean BMI 23.0 ± 2.8 g/m2. All were dwellers of south-eastern Poland. The validated KomPAN questionnaire was used to assess the frequency of consumption of individual food products. Results: The mean percentage of HbA1c in the study group was 7.3% [56 mmol/mol]. The mean total cholesterol level was 4.4 mmol/l, HDL - 1.7 mmol/l, LDL - 2.3 mmol/l and triglycerides - 0.8 mmol/l. In the multivariate regression model, no correlation was found between dietary quality parameters and metabolic compensation measured with HbA1c or lipidogram and the place of residence (village, small town, big city). However, there were differences in the quality of the diet depending on the sex. Women were characterized by higher index of a healthy diet (pHDI-10) (26.3 vs 21.4, p=0.005) and lower index of unhealthy diet (nHDI-14) (13.3 vs 18.6, p <0.001) than men. Conclusions: The results of this study clearly suggest, that despite good metabolic control, patients require more education on the choice of healthy product groups.