ObjectiveTo systematically review the efficacy of aerobic training, resistance training and aerobic training combined with resistance training on non-dialysis patients with chronic kidney diseases. MethodsPubMed, The Cochrane Library, EMbase, EBSCO, Web of Science, VIP, WanFang Data and CNKI databases were electronically searched to collect randomized controlled trials (RCTs) of three types of exercise therapy on patients with chronic kidney disease from January 2012 to January 2022. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies; then, network meta-analysis was performed by using RevMan 5.4 software and R software. ResultsA total of 22 RCTs involving 1 633 patients were included. The results of network meta-analysis showed that: compared with the control group, aerobic training, and resistance training reduced resting systolic blood pressure; aerobic training, resistance training reduced resting diastolic blood pressure; aerobic training reduced total cholesterol levels; aerobic training improved peak oxygen uptake; aerobic training combined with resistance training improved six-minute walking test. Aerobic training, resistance training, and aerobic training combined with resistance training improved glomerular filtration rate. The probability sorting results showed that aerobic training had the most significant effect on the improvement of peak oxygen uptake, C-reactive protein, total cholesterol, low-density lipoproteins, and high-density lipoproteins; resistance training had the most significant effect on the improvement of systolic blood pressure, diastolic blood pressure and glomerular filtration rate; aerobic exercise combined with resistance training had the most significant effect on the improvement of body mass index, triglycerides, and six-minute walking test. ConclusionCurrent evidence shows that aerobic training has an advantage in reducing total cholesterol levels and increasing peak oxygen uptake, resistance training has an advantage in improving blood pressure and glomerular filtration rate and aerobic training combined with resistance training has an advantage in improving walking ability of patients with non-dialysis chronic kidney disease.
Objective To compare changes in retinal and choroidal blood flow in the macular area of eyes with idiopathic macular hole (IMH), fellow eyes, and normal eyes. Additionally, the correlation between these blood flow changes and the occurrence and development of IMH. Methods A cross-sectional study. From January 2023 to January 2024, 47 patients (47 eyes) diagnosed with IMH (IMH group) in Department of Ophthalmology of The Second Hospital of Hebei Medical University were included in the study. The contralateral eye of IMH eyes was assigned to the contralateral eye group. Healthy volunteers with matched gender and age were selected as the normal control group. Swept-source optical coherence tomography angiography was used to acquire the vessel density (VD) of the superficial capillary plexus (SCP) and deep capillary plexus (DCP) in the areas within 0-1 mm and 1-6 mm around the fovea, including the superior, temporal, inferior, and nasal regions. Additionally, the choroidal blood flow area (CBFA) and three-dimensional choroidal vascular index (3D-CVI) were measured. The minimum linear diameter (MLD) and base diameter (BD) of the IMH were manually measured. Spearman correlation analysis was performed to evaluate the correlation between the size of the IMH and the various vascular parameters. ResultsCompared with the normal control group, the SCP-VD in the 3rd stage (t=1.298, P=0.009) and 4th stage (t=1.264, P＜0.000) eyes in the IMH group was significantly decreased, with statistical significance; the DCP-VD (t=1.958, 2.150, 1.712, 1.667; P=0.027, ＜0.000, ＜0.000, ＜0.000) and 3D-CVI (t=0.027, 0.030, 0.024, 0.023; P=0.005, 0.003, ＜0.000, ＜0.000) in eyes of all stages were significantly decreased, with statistical significance; the CBFA in eyes of stages 2-4 was significantly decreased, with statistical significance (t=0.027, 0.022, 0.021; P=0.028, 0.002, 0.002). Compared with the contralateral eye group, the DCP-VD and 3D-CVI in the IMH group were significantly reduced, with statistical significance (Z=−3.289, −2.704; P=0.001, 0.007). Pairwise comparisons between eyes of different stages in the IMH group showed that SCP-VD was significantly different between stage 2 and stage 4 (t=1.776, P=0.008); DCP-VD was significantly different between stage 1 and stage 3, and stage 1 and stage 4 (t=1.685, 1.661; P=0.002, 0.000). Correlation analysis showed that SCP-VD was negatively correlated with MLD and BD (r=−0.508, −0.408; P=0.002, 0.014); DCP-VD was negatively correlated with BD (r=−0.410, P=0.013). Compared with the normal control group, the nasal CBFA in stage 3 and 4 IMH eyes (t=0.149, 0.145; P=0.005, 0.002), and the nasal 3D-CVI in stage 1 and 3 IMH eyes (t=0.030, 0.027; P=0.002, ＜0.000) were significantly decreased, with statistical significance. ConclusionsThe SCP-VD, DCP-VD, CBFA, and 3D-CVI in IMH eyes were significantly reduced. SCP-VD showed a negative correlation with MLD and BD, while DCP-VD was only negatively correlated with BD.