ABSTRACT
Objective:To compare the immediate effectiveness of elbow forearm support with that of a traditional shoulder sling in reducing glenohumeral subluxation (GHS) after a stroke.Methods:Eight stroke survivors with GHS were randomized to receive either 30 minutes of intervention of an elbow forearm support treatment or a traditional shoulder sling treatment twice within 24 hours. Their healthy and affected shoulders were X-rayed before and right after the treatment is ongoing as well as after the end of the 30 min of treatment. The vertical (VD) and horizontal (HD) distances from the lower edge of the acromion to the center of the humeral head were measured. The satisfaction of the patients and their relatives was surveyed.Results:The average VD and HD improved significantly more after wearing the elbow forearm support. Moreover, the patients and their relatives expressed greater satisfaction with the elbow forearm support.Conclusion:Either an elbow forearm support or a traditional shoulder sling will have an immediate effect in reducing shoulder subluxation, but the elbow forearm support is more effective and gives greater satisfaction.
ABSTRACT
OBJECTIVE@#The purpose of this study is to explore the biomechanical characteristics of the tibia after unicompartmental knee arthroplasty with different distributions of two-pin holes, and to optimize the two-pin holes scheme to reduce the risk of tibial fractures after unicompartmental knee arthroplasty.@*METHODS@#Lower limbs model is segmented and reconstructed from computed tomography images. Four combinations of two pin holes created for tibial cutting guide placement are simulated with finite element analysis.@*RESULTS@#In the third mode, the positioning hole at the proximal medial edge of the tibial plateau has the highest stress value, and the position of the positioning hole near the medial edge of the proximal tibial plateau appears stress concentration.@*CONCLUSIONS@#The present study revealed that placing tibial cutting guide holding pins centrally would lower the risks of periprosthetic fracture of the medial tibial plateau.
Subject(s)
Arthroplasty, Replacement, Knee , Tibia/surgery , Lower Extremity , Finite Element Analysis , Tomography, X-Ray ComputedABSTRACT
OBJECTIVE@#To evaluate whether skin tests are suitable to predict the allergy reactions induced by Chinese herbal injections (CHIs).@*METHODS@#The skin tests including skin prick tests (SPT), intradermal tests (IDT) and provocation tests including subcutaneous tests and intravenous tests were administered to 249 healthy subjects and 180 allergic patients for 3 CHIs, including ginkgolide injection, diterpene ginkgolide meglumine injection and Salvianolate lyophilized injection. The results of the provocation tests were used as the "gold standard" to determine the sensitivity and specificity of the skin tests.@*RESULTS@#The results did not show any significant differences between the healthy and allergy groups in both skin tests and provocation tests (P>0.05). The specificities of SPT and IDT were 0.976 and 0.797, respectively, and the sensitivities of both SPT and IDT were 0.@*CONCLUSION@#Skin tests are insufficient to predict the likelihood of allergic reactions resulting from CHIs. (ChiCTR-CPC-15006921).
Subject(s)
Humans , China , Hypersensitivity , Intradermal Tests , Sensitivity and Specificity , Skin TestsABSTRACT
Objective To compare the expression of CD 49f splicing isoforms in different human stem cells and colon cancer cell lines , and construct lentiviral vectors overexpressing specific isoform .Methods The expression of CD49f isoforms in different cells was detected by RT-PCR and real-time PCR.The lentiviral vectors overexpressing CD49f isoforms were constructed by molecular cloning method .The overexpression of CD49f in colon cancer cell line HT29 was confirmed by FCM, Western blot and real-time PCR, the invasive ability was examined by transwell assay.Results CD49f splicing isoform B was highly expressed in H 9 human embryonic stem cell line , while iso-form A expressed in epithelial cells .Both isoform A and B were expressed in mesenchymal cells .CD49f isoforms A and B were also expressed in colorectal cancer cell lines , while HT29 and HCT116 showed higher expression of iso-form A than isoform B , HCT8 and LoVo showed higher expression of isoform B than isoform A .Overexpression of CD49f isoform B greatly increased the invasive ability of HT 29 cells, while isoform A showed no effect .Conclusions The expressions of CD49f splicing isoforms A and B in different types of cells are significantly different , which sug-gests that CD49f isoforms play different biological functions in cells .
ABSTRACT
Objective To investigate the impact flat deformity of the cerebral cortex induced by congenital hydrocephalus on motor functioning and cognition.Methods Tomography was used to confirm the presence of flat cortex deformity in three congenital hydrocephalus patients ranging in age from 20 to 33.Their motor control,balance,cognition and ability in the activities of daily living (ADL) were evaluated using the Fugl-Meyer assessment (FMA),the Berg balance scale (BBS),the mini-mental state examination (MMSE) and the modified Barthel index (MBI).Speech dysfunction was judged on the basis of clinical communication.The patients were scanned using a 64-slice spiral CT and size-of-ventricle indices were calculated.Results All 3 patients underwent ventrideperitoneal shunt.Their FMA scores were 75.5,83 and 100,with BBS scores of 4,24 and 56,MMSE scores of 14,23 and 26,and the MBIs of 40,90 and 100.CT images showed obvious ventricle enlargement and a thinner cortex layer in all three,with the thinnest part 0.18 cm,0.22 cm and 0.57 cm.Their ventricle indexes were 303％,288％ and 192％,respectively.Conclusion Although there is no systematic rehabilitation therapy for such patients,their motor,cognition and speech functioning were good,indicating the great potential for plasticity of the human brain.
ABSTRACT
Aim To investigate the effect of miR-320a up-regulation on the apoptosis and migration of Bel7402 cells induced by ribonucleic acid Ⅱ.Methods The different expression levels of miR-320a in normal liver cells and hepatocellular carcinoma (HCC) cells were detected by qRT-PCR.Bel-7402 cell was transfected with miR-320a mimic,and the miR-320a expression levels were measured by qRT-PCR.The effect of ribonucleic acid Ⅱ on proliferation of Bel-7402 and Bel-7402-miR-320a cells was measured by CCK-8 assay,and cell cycle and apoptosis were detected by flow cytometry.The migration and invasion ability of ribonucleic acid Ⅱ on Bel-7402 cells were tested by Transwell method.The expression of p53,Cyclin D1,Bax,Bcl-2,MMP-3 proteins were examined by Western blot.Results miR-320a expression levels in HCC cell line Bel-7402 were significantly lower than those in normal cell line HL-7702.Bel-7402 cells were successfully transfected with miR-320a mimic,named Bel-7402-miR-320a.CCK-8 showed that ribonucleic acid Ⅱ could effectively inhibit the proliferation of Bel7402 and Bel-7402-miR-320a cells in vitro in a dosedependent manner at the range of 100,200,300,400,500 mg · L-1.The IC50 of ribonucleic acid Ⅱexposure on Bel-7402 and Bel-7402-miR-320a cells for 12 h and 24 h was 250,200 mg · L-t and 150,120 mg · L-1,respectively;flow cytometric analysis indicated that over-expression of miR-320a could arrest Bel-7402 and Bel-7402-miR-320a cells induced by ribonucleic acid Ⅱ in G0/G1 phase,and promote the apoptosis of HCC cells.Transwell method showed that Bel-7402-miR-320a + Ribonucleic acid Ⅱ group could significantly inhibit the migration of HCC cells compared with control group and Bel-7402 + Ribonucleic acid Ⅱ group.Western blot results showed that the expression of p53,Bax proteins increased,while the Cyclin D1,Bcl-2,MMP-3 proteins were down-regulated in Bel-7402 and Bel-7402-miR-320a cells induced by ribonucleic acid Ⅱ.Conclusions The expression of miR-320a is lower in HCC cells than that in normal cell line.While ribonucleic acid Ⅱ could promote the apoptosis of liver cancer cells by arresting the cell cycle protein expression of Cyclin D1,activating p53 signaling pathway,down-regulating Bcl-2,up-regulating Bax and destroying Bcl-2/Bax proportions,and inhibiting the migration and invasion of HCC cells by downregulating MMP-3.Overexpression of miR-320a could increase the sensitivity and boost the pharmacological effects of ribonucleic acid Ⅱ on HCC cells.
ABSTRACT
Objective To explore the endoplasmic reticulum stress (ERS) apoptosis pathway in unilateral ureteral obstruction (UUO) mechanism of renal interstitial fibrosis in rats.Methods The rats were randomly divided into con-trol group and model group,UUO group line ligation of the left ureter,three days 3,7 and 14 days HE and Masson staining were used to observe the renal pathological changes;Take blood retinal venous plexus,separat and determina-tion of serum blood urea nitrogen and creatinine;Western blot was used to find protein 78 (GRP78) glucose regula-tion,endoplasmic reticulum source sex transcription factor (CHOP) and apoptosis related proteins cysteine aspartic acid proteinase 3(caspase-3) and caspase-12 protein expression. Results Compared with control group,the visible UUO model group 1) expansion of renal tubule and renal interstitial fibrosis degree with the extension of ureteral ob-struction time and progressive increase;2) GRP78,CHOP,caspase-3 and caspase-12 protein expression in postoper-ative 3 d have to rise,as the obstruction prolonged,the protein expression more significantly(P<0.01).Conclusions Endoplasmic reticulum stress related trademark protein in UUO rat renal interstitial fibrosis is the increase in expres-sion may promote the early renal interstitial fibrosis and continuous progress.
ABSTRACT
Objective To explore the endoplasmic reticulum stress (ERS) apoptosis pathway in unilateral ureteral obstruction (UUO) mechanism of renal interstitial fibrosis in rats.Methods The rats were randomly divided into con-trol group and model group,UUO group line ligation of the left ureter,three days 3,7 and 14 days HE and Masson staining were used to observe the renal pathological changes;Take blood retinal venous plexus,separat and determina-tion of serum blood urea nitrogen and creatinine;Western blot was used to find protein 78 (GRP78) glucose regula-tion,endoplasmic reticulum source sex transcription factor (CHOP) and apoptosis related proteins cysteine aspartic acid proteinase 3(caspase-3) and caspase-12 protein expression. Results Compared with control group,the visible UUO model group 1) expansion of renal tubule and renal interstitial fibrosis degree with the extension of ureteral ob-struction time and progressive increase;2) GRP78,CHOP,caspase-3 and caspase-12 protein expression in postoper-ative 3 d have to rise,as the obstruction prolonged,the protein expression more significantly(P<0.01).Conclusions Endoplasmic reticulum stress related trademark protein in UUO rat renal interstitial fibrosis is the increase in expres-sion may promote the early renal interstitial fibrosis and continuous progress.
ABSTRACT
<p><b>BACKGROUND</b>The aim of this study was to assess the performance of apparent diffusion coefficient (ADC) measurement obtained with diffusion-weighted magnetic resonance imaging (DW-MRI) to distinguish renal cell carcinomas (RCCs) from small benign solid renal tumors (≤ 4 cm).</p><p><b>METHODS</b>In this cross-sectional study, 49 consecutive patients with histopathologically confirmed small solid renal tumors, and seven healthy volunteers were imaged using nonenhanced MRI and DW-MRI. The ADC map was calculated using the b values of 0, 50, 400, and 600 s/mm 2 and values compared via the Kruskal-Wallis and Mann-Whitney tests. The utility of ADC for differentiating RCCs and benign lesions was assessed using a receiver operating characteristic curve. Multiple nonenhanced MRI features were analyzed by Logistic regression.</p><p><b>RESULTS</b>The tumors consisted of 33 cases of clear-cell RCCs (ccRCCs) and 16 cases of benign tumors, including 14 cases of minimal fat angiomyolipomas and 2 cases of oncocytomas. The ADCs showed significant differences among benign tumors ([0.90 ± 0.52] × 10-3 mm 2 /s), ccRCCs ([1.53 ± 0.31] × 10-3 mm 2 /s) and the normal renal parenchyma ([2.22 ± 0.12] × 10-3 mm 2 /s) (P < 0.001). Moreover, there was statistically significant difference between high and low-grade ccRCCs (P = 0.004). Using a cut-off ADC of 1.36 × 10-3 mm 2 /s, DW-MRI resulted in an area under the curve (AUC), sensitivity, and specificity equal to 0.839, 75.8%, and 87.5%, respectively. Nonenhanced MRI alone and the combination of imaging methods led to an AUC, sensitivity and specificity equal to 0.919, 93.9%, and 81.2%, 0.998, 97%, and 100%, respectively. The Logistic regression showed that the location of the center of the tumor (inside the contour of the kidney) and appearance of stiff blood vessel were significantly helpful for diagnosing ccRCCs.</p><p><b>CONCLUSIONS</b>DW-MRI has potential in distinguishing ccRCCs from benign lesions in human small solid renal tumors (≤ 4 cm), and in increasing the accuracy for diagnosing ccRCCs when combined with nonenhanced MRI.</p>
Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Carcinoma, Renal Cell , Diagnosis , Cross-Sectional Studies , Diffusion Magnetic Resonance Imaging , Methods , Kidney Neoplasms , DiagnosisABSTRACT
<p><b>OBJECTIVE</b>Tyrosine kinase inhibitors (TKIs) of the epidermal growth factor receptor (EGFR) have been reported to be effective in the treatment of esophageal and esophagogastric junction cancers. The aim of this study was to detect the frequency of EGFR mutation and expression in Chinese patients with esophageal, esophagogastric junction and gastric cancers, and to clarify the value of EGFR mutation and expression in predicting the efficacy of TKI in the treatment of these tumors.</p><p><b>METHODS</b>In this study, 180 tumor samples with histologically confirmed esophageal cancer (39 cases), cancer of the esophagogastric junction (92 cases) and gastric cancer (49 cases) were collected. Twenty-nine different EGFR mutations in exons 18-21 were assessed by real-time PCR-optimized oligonucleotide probe method. EGFR protein expression was evaluated by immunohistochemistry (IHC) in 89 tumor samples.</p><p><b>RESULTS</b>The mutation analysis for EGFR (exons 18-21) showed no mutations in any of the hotspots of the gene in the 180 tumor samples analyzed. EGFR expression was negative in 12 tumor samples, 1+ in 31 tumor samples, 2+ in 24 tumor samples, and 3+ in 22 tumor samples. EGFR expression was 2+ or 3+ in 12 (92.3%) of the 13 esophageal squamous cell carcinomas, 29 (47.5%) of the 61 esophagogastric junction cancers, and 5 (33.3%) of the 15 gastric adenocarcinomas.</p><p><b>CONCLUSIONS</b>Our results indicate that EGFR mutation in exons 18-21 is absent in the examined samples of esophageal, esophagogastric junction and gastric cancers. More studies are warranted to explore the predictive biological markers for the therapeutic response to EGFR TKI.</p>
Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Adenocarcinoma , Genetics , Metabolism , Carcinoma, Adenosquamous , Genetics , Metabolism , Carcinoma, Squamous Cell , Genetics , Metabolism , Esophageal Neoplasms , Genetics , Metabolism , Esophagogastric Junction , Metabolism , Pathology , Exons , Mutation , ErbB Receptors , Genetics , Metabolism , Stomach Neoplasms , Genetics , MetabolismABSTRACT
Objective To observe the clinical effect of plasmin combined with aspirin in treating acute cerebral infarction and to explore the influence to blood rheology and nerve function.Methods 148 cases with acute cerebral infarction were randomly divided into two groups.The control group (n =74) was treated by honghua injection.The study group (n =74) was treated by plasmin combined with aspirin.After treatment,the clinical effect,blood rheology and neurological recovery were observed.Results The total effective rate of the study group was 97.2％,which was significantly higher than that of the control group(74.3％) (x2 =15.88,P ＜ 0.05).The blood rheology indexes of the two groups had improved and neural function of the two groups was restored,but those in the study group were obviously better than control group (t =3.56,3.42,4.26,3.22,4.16,all P ＜ 0.05).Conclusion Plasmin combined with aspirin in treating acute cerebral infarction has accurate clinical curative effect,can markedly improve the blood rheology and promote nerve functional recovery,is worth of clinical spreading.