Objective Background and objective Bioinformatics technology found the TCF21 gene has difference expression in non-small cell lung cancer (NSCLC) and benign lung tissue.To explore TCF21 mRNA and protein expression in nonsmall cell lung cancer and its methylation of the promoter region is the aim of this study.Methods Use RT-PCR,Western blot and Pyrosequencing detected TCF21 gene mRNA,protein and the methylation of the promoter region respectively in 97 cases of non-small cell lung cancer and 21 cases of benign lung tissue.Results TCF21 gene mRNA-positive expression were detected 23 cases (23.71％) and 14 cases (66.67％) in 97 cases of NSCLC cancer tissue and 21 cases of benign lung tissue,the average gray value of TCF21 protein expression levels in NSCLC cancer tissue is 0.49 ± 1.78,while it is 1.48 ± 1.58 in benign lung tissue,the TCF21 gene promoter region have varying degrees methylation in NSCLC cancer tissue and benign lung tissue,and the significant of methylation frequency was found statistically significant between NSCLC cancer tissue and benign lung tissue,also it has higher frequency of 49.04％ and 51.37％ respectively at point 1 and 5 in NSCLC cancer organizations.Conclusion TCF21 gene mRNA and protein expression were statistically significant in NSCLC cancer tissue and benign lung tissue,the TCF21 gene promoter region average methylation frequency was significantly higher than that in benign lung tissue cells.

Abstract: Objective To analyze the correlation between the thromboelastography (TEG) indexes and the indexes related to liver injury in patients with heat stroke, and explore the diagnostic value of TEG indexes for liver injury in patients with heat stroke. Methods A total of 95 patients with exertional heat stroke (EHS) admitted to 924 Hospital of the Joint Service Support Force of the People's Liberation Army of China from August 2020 to July 22 were selected, and divided into a non-liver injury group (55 cases) and a liver injury group (40 cases) according to whether there was liver injury. TEG instrument was used for the detection of thromboelastography to record the TEG parameters, including reaction time (R), agglutination time (K), α angle, maximum amplitude (MA value), and coagulation complex index (CI). The levels of glutamic transaminase (AST), alanine aminotransferase (ALT), total bilirubin (TBil), albumin (ALB) were detected by automatic biochemical analyzer. Pearson's method was applied to analyze the correlation between thromboelastography indexes R, K, α angle, CI and liver function indexes AST, ALT, TBil, ALB in patients with heat stroke after liver injury. Receiver operating characteristic curve (ROC) was applied to analyze the predictive value of thromboelastography indexes R, K, α angle, CI and combined detection for liver injury in patients with heat stroke. Results Compared with the non-liver injury group, the AST, ALT and TBil levels in patients with heat stroke in the liver injury group were higher (t=26.174, 16.923, 18.414, P<0.05), while the ALB level was lower (t=24.596, P<0.05); compared with the non-liver injury group, the R and K of patients with heat stroke in the liver injury group were higher (t=58.014, 52.862, P<0.05), and the α angle and CI were lower (t=46.853, 60.717, P<0.05); R was positively correlated with AST and ALT (r=0.532, 0.610, P<0.001), and negatively correlated with ALB (r=-0.551, P<0.001) in patients with heat stroke complicated with liver injury; K was positively correlated with AST, ALT and TBil (r=0.661, 0.531, 0.504, P<0.001); α angle was negatively correlated with AST and ALT (r=-0.473, -0.448, P<0.01), and positively correlated with ALB (r=0.539, P<0.001); CI was negatively correlated with AST, ALT and TBil (r=-0.458, -0.505, -0.549, P<0.001); the area under the curve (AUC) of thromboelastography indexes R, K, α angle and CI in predicting liver injury in patients with heat stroke was 0.807 (sensitivity of 70.0%, specificity of 81.6%), 0.831 (sensitivity of 77.5%, specificity of 85.5%), 0.747 (sensitivity of 67.5%, specificity of 74.5%), and 0.788 (sensitivity of 77.5%, specificity of 83.6%), respectively. The AUC of combined detection to predict liver injury in patients with heat stroke was 0.967 (sensitivity of 92.5%, specificity of 91.9%). Conclusions The thromboelastography indexes are correlated with the indexes related to liver injury in patients with heat stroke, and the thromboelastography indexes are helpful to diagnose liver injury in patients with heat stroke.

ObjectiveTo investigate the clinical value of sonographic detection for calcification in diagnosis of thyroid carcinoma.MethodsClinical data of 3924 thyroid disease patients examined by ultrasonography and pathology at First Hospital of China Medical University were retrospectively reviewed to investigate the relationship between calcification, microcalcification, macrocalcification and peripheral calcification with thyroid carcinoma,the relationship between solitary nodule with calcification and multiple nodules with calcification with thyroid carcinoma and the relationship between calcification with thyroid carcinoma in different age groups. ResultsThe incidences of calcification,microcalcification in malignant and benign thyroid patients were 32.05％,6.50％ and 80.07％,51.53％,the incidences of calcification and microcalcification were significantly higher in malignant group than in benign group (P ＜ 0.01 ).The incidence of carcinoma in solitary nodules with calcification was 53.33％ while it was 22.2％ in multiple nodule group,the incidence of carcinoma in solitary nodules with calcification was significantly higher than that in multiple nodules (P ＜ 0.01 ).The incidence of carcinoma in solitary nodules with microcalcification was 74.1％ while in multiple nodule group it was 47.9％,the incidence of carcinoma in solitary nodules with microcalcification was significantly higher than that in multiple nodules ( P ＜ 0.01 ).The incidence of carcinoma younger than 70 years of age with caicification in different age groups was significantly different (P ＜ 0.05).In 40 and younger age group,the incidence of carcinoma with microcaicification was higher than that in over 44 years group (P ＜ 0.01 ).ConclusionsCalcification or microcalcification is considered to be a risk factor of thyroid carcinoma.Solitary nodules with calcification or microcalcification found in younger patients were more likely to coexist with thyroid carcinoma.

Objective To evaluate the diagnostic value of medical imaging for primary thyroid malignant lymphomathe(PTML). Methods The medical imaging of 45 PTML cases admitted between January 2000 and December 2014 in the First Hospital of China Medical University were ana?lyzed retrospectively. Results In ultrasound imaging,PTML exhibits a hypoechoic mass and enhancement of posterior echoes,the uninvolved thy?roid tissues also exhibit low echoes but they have clear boundaries with extremely low echo areas of PTML.CT imaging of PTML often shows homoge?neous enlargement of the lobes of the thyroid gland and isthmus with densities lower than the adjacent muscles. In contrast?enhanced CT images,le?sions are moderately enhanced,but they are obviously enhanced in the edge or internal area and the degree of enhancement remains lower than that of the adjacent muscle. Calcification is uncommon. A lesion withcold nodulecan be observed in ECT imaging. Conclusion The characteristic im?aging findings are helpful for preoperative diagnosis of PTML.

Objective To investigate the characteristics and risk factors of central lymph node metastasis in clinically node negative (cN0) papillary thyroid carcinoma (PTC) (T1 or T2 stage) coexisting with Hashimoto' s thyroiditis (HT).Methods A total of 398 patients undergoing thyroidectomy with central lymph node dissection were enrolled in the study.Patients were divided into the trial group (PTC with HT)and the control group (PTC without HT).The difference of the clinicopathological characteristics between the 2 groups and risk factors for central lymph node metastasis were analyzed.Results Among the total 398 patients,98 (24.6％)had coexistent HT.Central lymph node metastasis rate was similar in the 2 groups (40.8％ vs 41.3％).The number of dissected central lymph nodes was significantly more in the trial group than in the control group (4.9 vs 2.9,P＜0.01) while the number of metastatic lymph nodes had no statistical significance between the 2 groups (1.0 vs 1.0).Univariate analysis showed that tumor size＞1 cm was significantly associated with central lymph node metastasis in the trial group (P＜0.01).Male,＜45 years,tumor size＞1 cm,and tumor located in the middle/lower third of lobe were all significantly associated with central lymph node metastasis in the control group (P＜0.01).Multivariate analysis showed that tumor size＞1 cm was independent predictor for central lymph node metastasis in the trial group,while female,＜45 years,tumor size＞1 cm,and tumor located in the middle/lower third of lobe were all independent predictors for central lymph node metastasis in the control group.Conclusions The number of central lymph nodes was larger in cN0 PTC coexisting with HT patients than that in PTC patients,but there was no statistical difference in the number of metastatic lymph nodes between cN0 PTC with and without HT.Central lymph node dissection is recommended when tumor size 1 cm in cN0 PTC coexisting with HT patients.

Objective To investigate the effects of autologous blood transfusion and allogeneic blood transfusion on postoperative complications and outcome of patients underwent craniotomy with traumatic brain injury.Methods All transfusional cases underwent emergency craniotomy with trau-matic brain injury from January,2012 to June,201 6,1 61 males and 38 females,ASA physical statusⅠ-Ⅳ,were respectively analyzed and divided into autologous blood group (n = 108)and allogeneic blood group (n =91)based on whether or not using cell salvage.The restrictive transfusion strategy was applied in the two groups and the red blood cells were infused to maintain the hemoglobin concen-tration at 70-100 g/L.The incidence of postoperative complications and adverse transfusion reaction were analyzed and the clinical outcome was judged by Glasgow outcome score (GOS).Results The incidence of postoperative complications (33% vs.56%,P <0.01 )and adverse transfusion reaction (5% vs.14%,P <0.05)of the autologous blood group were lower than that in the allogeneic blood group,and the clinical outcome was better (P <0.01).Logistic regression analysis showed that allo-genetic transfusion (OR =1.953,95%CI 1.381-2.529)was an independent risk factor of postopera-tive complications.Conclusion The use of autologous blood transfusion in patients with traumatic brain injury can reduce the incidence of postoperative complications and the risk of blood transfusion and improve clinical outcome.

INTRODUCTIONThis study analyses the diagnostic value of ultrasonography (US) detection for calcification in thyroid nodules.

MATERIALS AND METHODSWe analysed the preoperative US findings and clinical characteristics of 577 malignant and 3434 benign thyroid patients who underwent surgery in our hospital.

RESULTSThe malignant rate in patients with microcalcification hyperechoic and tiny calcification foci ≤2 mm in diameter was significantly higher than the non-calcification and other calcification group (P <0.001). The malignant rate in single calcifi cation nodule was signifi cantly higher than that in multiple nodule group (P <0.01). Most of the patients (37/39) with lymph node calcification were malignant. The malignant rate of calcification and microcalcification was significantly higher in patients <45 years old than in older patients (P <0.05).

CONCLUSIONCompared with other calcifications, microcalcification should be a better predictor of thyroid carcinoma. Malignancy should be highly suspected in patients with single calcification nodule, especially with lymph node calcification. Patients younger than 45 years of age with calcification or microcalcification have a greater risk for thyroid carcinoma.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Calcinosis ; complications ; diagnostic imaging ; Child ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Thyroid Diseases ; complications ; diagnostic imaging ; Thyroid Nodule ; complications ; diagnostic imaging ; Ultrasonography ; Young Adult

Objective To explore the diagnosis and treatment of poorly differentiated endocardial sarcoma. Method The clinical data of a child with poorly differentiated endocardial sarcoma was retrospectively analyzed. Results One-year-old girl was admitted for diarrhea, polypnea, cyanosis, and cough. Abnormal heart sound was found by auscultation. Leads Ⅱ, Ⅲ, and aVF of ECG showed high peaked P wave. The diagnosis of poorly differentiated endocardial sarcoma was confirmed by echocardiography and pathology after cardiac operation. Three months after discharge from the hospital, the patient suddenly came into coma and died. Conclusion The diagnosis of poorly differentiated endocardial sarcoma is mainly based on clinical manifestations, echocardiography and pathology. Surgical resection is the first choice and chemotherapy and radiotherapy play a supporting role. However, there is no cure for it currently.

Objective To explore the ultrasonographic and CT imaging features of predominantly cystic thyroid carcinoma (PCTC).Methods The retrospective analysis was performed on 30 cases of thyroid carcinoma with predominantly cystic composition confirmed by pathololy in the General Surgery Department of the First Affiliated Hospital of China Medical University from Jan.2011 to Dec.2016.The distribution of their solid portion's ultrasound characters including the eccentric configuration,irregular margin and increased vascularity were observed in all PCTCs.The CT images of 9 cases were analyzed,and the distribution of their solid portion's CT characters including irregular margin,uneven enhancement and papillary structure were observed in 9 PCTCs.Results In the ultrasound images of 30 PCTCs' whole shapes,26 cases (86.7％) showed oval and 24 cases (80.0％) showed smooth margin.26 cases (86.7％) showed eccentric configuration,20 cases (66.7％) showed rich blood flow and 19 cases (63.3％) showed irregular margin in the solid portion's ultrasound image.Only 7 cases(23.3％) showed microcalcification.Every ultrasound image of 30 PCTCs showed at least one or more of the three ultrasound characters,including eccentric configuration,irregular margin and increased vascularity.In the solid portion of 9 PCTCs,7 cases (77.8％) showed irregular margin,6 cases (66.7％) showed uneven enhancement and 6 cases(66.7％) showed papillary structure in the CT image,and every one of them showed at least one or more of the above 3 CT characters.Conclusion When the solid portion of predominantly cystic thyroid nodule appears to have some suspicious malignant characters in the image of ultrasound or CT,we should be vigilant that the nodule may be malignant.

Objective To evaluate the changing trend of serum thyrotropin (TSH) levels for hemithyroidectomy patients,and to discuss the necessity and strategy of TSH suppression for low-risk differentiated thyroid carcinoma(DTC). Methods One hundred and twenty-seven patients with benign thyroid nodules undergoing hemithyroidectomy between January 2013 and June 2014 were retrospectively studied. Serum thyroid hormones levels FT3,FT4,TSH,thyroid peroxidase antibody(TPOAb),and thyroglobulin antibody(TGAb)were detected at 1 month after surgery for all patients and at 3 month for 54 patients. Results (1)Mean TSH level at 1 month after surgery was significantly higher than preoperative TSH level(2.45 mIU/L vs 2.20 mIU/L,n=127,P<0.01). The mean TSH level at 3 month after operation was significantly higher than preoperative ones(2.46 mIU/L vs 2.35 mIU/L,n=54, P<0.05). (2)TSH<2. 0 mIU/L was found in 52 patients(40. 9%) and TSH>4. 94 mIU/L in 18 patients (14.17%) at 1 month after operation. TSH<2.0 mIU/L was found in 28 patients(51.85%)and TSH>4.94 mIU/L in 8 patients(14.81%) at 3 month after operation. (3)A preoperative TSH≥2.0 mIU/L and the coexistence of Hashimoto's thyroiditis were found to be independent risk factors for the TSH levels higher than 2.0 mIU/L. Among the patients with TSH≥2. 0 mIU/L at 1 month, 13 exhibited spontaneous recovery at 3 month, coexistence of Hashimoto's thyroiditis was related to this phenomenon. Among the patients with TSH<2.0 mIU/L at 1 month,TSH levels were elevated over 2. 0 mIU/L in 7 patients by 3 month comparing to that by 1 month. Coexistence of Hashimoto's thyroiditis was independent risk factor for the TSH elevation. Conclusion TSH suppression may still be performed to patients with low risk DTC after operation especially to whom the preoperative TSH≥2.0 mIU/L and the coexistence of Hashimoto's thyroiditis. Suppression therapy should be carefully considered with close follow-up.