ABSTRACT
ObjectiveTo evaluate the inter-rater and test-retest reliability of echo intensity of ultrasound image for quality of quadriceps femoris in patients with knee osteoarthritis (KOA). MethodsFrom March to December, 2021, 33 patients with unilateral KOA in Guangdong Provincial Second Hospital of Traditional Chinese Medicine were included. Ultrasound was used to observe the cross sections of rectus femoris (RF), vastus medialis (VM) and vastus lateralis (VL), and the images were saved. Two independent raters analyzed the average gray value of the picture with the Image J. One of the raters repeated the measurement. The intra-class correlation coefficient (ICC), standard error of measurement (SEM), minimum detectable change (MDC) and coefficient of variation (CV) were calculated and the Bland-Altman charts were drawn. ResultsThe gray value was higher in the RF, VM and VL in the affected side than in the healthy side (t > 2.262, P < 0.05). The inter-rater reliability was excellent, with ICC 0.982 to 0.995, SEM 1.60 to 3.82, CV 1.49% to 5.90%, and MDC value 4.43 to 10.59. The test-retest reliability of the rater was excellent, with ICC 0.969 to 0.990, SEM 2.37 to 5.41, CV 2.22% to 4.84%, and MDC value 6.57 to 15.00. Bland-Altman charts analysis showed that the consistency was good. ConclusionThe quadriceps femoris muscle quality is different between the affected and the healthy sides in patients with unilateral KOA. It is reliable to evaluate muscle echo intensity by Image J.
ABSTRACT
ObjectiveTo explore the imbalance of paravertebral muscle group for patients with unilateral lumbar disc herniation. MethodsFrom January, 2022 to January, 2023, 30 patients with unilateral lumbar disc herniation (observation group) and 30 healthy people matching in general data (control group) were measured the tension and stiffness of multifidus and erector spinae with MyotonPRO, while the observation group was assessed with Visual Analogue Scale (VAS) for pain and Japanese Orthopaedic Association (JOA) score, and the time of disease was also recorded. ResultsThe mean of bilateral tension and hardness of multifidus and erector spinae was more in the observation group than in the control group (|t| > 5.407, P < 0.001), and the tension and hardness of multifidus and erector spinae of the affected side were more than those of the unaffected side in the observation group (|t| > 11.219, P < 0.001). The tension and hardness of multifidus and erector spinae of the affected side were positively correlated with VAS score (r > 0.942, P < 0.001), and negatively correlated with JOA score (|r| > 0.886, P < 0.001). ConclusionThe tension and hardness of multifidus and erector spinae of the affected side increase after unilateral lumbar disc herniation, resulting in asymmetry.
ABSTRACT
Objective To investigate the correlation between aryl hydrocarbon receptor (A hR) gene polymorphisms and haplotypes and susceptibility of ulcerative colitis (UC) .Methods From January 2010 to October 2017 ,at the Second Affiliated Hospital of Wenzhou Medical University ,the First Affiliated Hospital of Wenzhou Medical University , Central Hospital of Wenzhou City and Wenzhou People Hospital ,a total of 396 UC patients were recruited as the UC group .In the same period ,573 age-and gender-matched healthy individuals were taken as the healthy control group . Three single nucleotide polymorphisms (SNP) of A hR (rs10249788 ,rs2066853 ,rs2158041) were examined by modified multiple ligase detection reaction technique .The correlation between the differences in the frequency of each SNP mutant alleles ,genotypes and clinical pathological features of UC was analyzed by unconditional logistic regression analysis .Haploview 4 .2 software was applied to analyze the linkage disequilibrium (LD) . Results The frequency of mutant allele C and genotype TC+CC of AhR (rs10249788) of UC group were higher than those of the healthy control group (75 .00％ ,594/792 vs .69 .98％ ,802/1146 ;95 .45％ , 378/396 vs .91 .10％ ,522/573) ,the differences were statistically significant (odds ratio (OR)=1 .287 , 95％ confidence interval (CI) 1 .049 to 1 .579 , P=0 .016 ;OR=2 .052 ,95％ CI 1 .180 to 3 .568 , P=0 .011) .Compared with the patients with distal colitis ,the frequencies of mutant allele C and genotype TC +CC of AhR (rs10249788) were higher in the patients with extensive colitis (71 .34％ ,341/478 vs . 80 .57％ ,253/314;93 .31％ ,223/239 vs .98 .73％ ,155/157) ,and the differences were statistically significant (OR=1 .666 ,95％ CI 1 .183 to 2 .347 ,P=0 .003 ;OR=5 .561 ,95％ CI 1 .260 to 24 .530 ,P=0 .023) .The results of LD analysis indicated that rs10249788 and rs2066853 ,rs10249788 and rs2158041 , rs2066853 and rs2158041 were linked to each other (D′=0 .636 ,0 .430 and 0 .980 ;r2 =0 .270 ,0 .023 and 0 .177 ) . Compared with the healthy control group , the frequency of haplotype TAC of UC group decreased (20 .20％ ,231 .5/1146 .0 vs .16 .24％ ,128 .6/792 .0) ,however the frequency of haplotype CAC increased (14 .43％ , 165 .4/1146 .0 vs . 20 .47％ , 162 .1/792 .0 ) , and the differences were statistically significant (OR=0 .767 ,95％ CI 0 .605 to 0 .973 , P=0 .029 ;OR=1 .529 ,95％ CI 1 .204 to 1 .941 ,P<0 .01) .The results of further analysis demonstrated that the frequency of haplotype CGC was higher in patients with extensive colitis than that of patients with distal colitis (38 .69％ ,121 .5/314 .0 vs . 29 .48％ ,140 .9/478 .0) ,and the difference was statistically significant (OR=1 .511 ,95％ CI 1 .119 to 2 .040 ,P= 0 .007) ,while the frequency of haplotype TAC in patients with extensive colitis was lower than that of patients with distal colitis (12 .10％ , 38/314 .0 vs . 17 .55％ , 83 .9/478 .0 ) , and the difference was statistically significant (OR= 0 .646 ,95％ CI 0 .483 to 0 .983 , P= 0 .037) .Conclusion A hR (rs10249788) may be a potential locus affecting susceptibility to UC ,and synergistically influence the risk and the location of UC .