ABSTRACT
OBJECTIVE@#To estimate the application of prognosis evaluation of ulnar nerve injury by 1H-magnetic resonance spectroscopy (1H-MRS).@*METHODS@#The metabolites of first dorsal interossei (FDI) of two hands from 12 healthy volunteers and 1 volunteer with complete ulnar nerve injury were detected by 1H-MRS and the data were statistically analyzed.@*RESULTS@#For the FDI of healthy adults, the female peaks area of extra-myocellular lipids (EMCL) was higher than the male (P < 0.05); There was no significant difference in Cho, Cr and intra-myocellular lipids (IMCL) between male and female (P > 0.05); There was no significant difference in all the peaks area between the left and right hand (P > 0.05). The EMCL peak of the injury side was higher than that of the healthy side, and the area of FDI was reduced in the volunteer with ulnar nerve injury.@*CONCLUSION@#Noninvasive and quantitative detection of 1H-MRS may be valuable for prognosis evaluation of peripheral nerve injury.
Subject(s)
Adult , Female , Humans , Male , Peripheral Nerve Injuries/diagnosis , Prognosis , Proton Magnetic Resonance Spectroscopy/methods , Sex Distribution , Ulnar Nerve/metabolismABSTRACT
OBJECTIVE@#This study aimed to clarify the morphology of the Martin-Gruber anastomosis (MGA) in Chinese.@*METHODS@#One hundred and five Chinese upper limbs (36 males and 20 femalese) were dissected to find the connections between medial nerve and ulnar nerve. The MGA was classified as previously described by Lee.@*RESULTS@#MGA was found in 24 cases (22.9%), in 11 of the 36 male and 5 of the 20 female. There was no obvious difference in the frequency of MGA in both upper limbs. Most MGA ulnar position was located at the medial and distal segment of the forearm.@*CONCLUSION@#MGA anatomy could play important role in forensic diagnosis of ulnar nerve injury in Chinese population.
Subject(s)
Female , Humans , Male , Cadaver , China/epidemiology , Expert Testimony/legislation & jurisprudence , Median Nerve/pathology , Muscle, Skeletal/innervation , Nervous System Malformations/physiopathology , Ulnar Nerve/pathology , Upper Extremity/innervationABSTRACT
OBJECTIVE@#To study the relationship between postmortem interval and the myofibril fragmentation index of skeletal muscle.@*METHODS@#Rabbit skeletal muscle were left in the room temperature for different postmortem intervals, and the protein concentration of each sample was detected by using biuret method. Furthermore, the myofibril fragmentation index of each sample was measured under the protein concentration level of 0.5 mg/mL.@*RESULTS@#The myofibril fragmentation index increased obviously according to the postmortem interval prolongation.@*CONCLUSION@#The myofibril fragmentation index may be used on the estimation of early postmortem interval.
Subject(s)
Animals , Female , Male , Rabbits , Calcium-Binding Proteins/metabolism , Muscle, Skeletal/metabolism , Myofibrils/metabolism , Postmortem Changes , Proteins/metabolism , Spectrophotometry , Time FactorsABSTRACT
OBJECTIVE@#To investigate the signification of CTnI in acute myocardial infarction.@*METHODS@#The model of myocardial infarction was established by ligating the left ventricle branch. Immunohistochemistry and image analysis were used to detect the change of CTnI in the model, and The sensitivity of immunohistochemistry and HE coloration were also compared.@*RESULTS@#The acute myocardial infarction tissue showed obvious depletion of CTnI, there was no characterization of myocardial infarction in HE coloration.@*CONCLUSION@#CTnI is sensitive to diagnosis of acute myocardial infarction.