Objective To investigate the correlation and clinical prognostic value between the expression of polypeptide N-acety lgalactosaminyltransferases 1(GALNT1),lysosomal adaptor MTOR activator 5(LAMTOR5),and epithelial mesenchymal transition(EMT)in gastric cancer.Methods 102 gastric cancer patients admitted to Nantong Tumor Hospital from January 2018 to January 2020 were selected.Immunohistochemistry(IHC)and real-time fluorescence quantitative PCR(RT-PCR)were used to detect the expression of GALNT1,LAMTOR5 mRNA and protein,as well as the expression of EMT indicators Snail mRNA,N-cad mRNA and Vimentin mRNA in cancer and adjacent tissues.Pearson correlation analysis was performed to investigate the correlation between markers.Kaplan Meier curve analysis was used to investigate the relationship between GALNT1 mRNA,LAMTOR5 mRNA and the prognosis of gastric cancer patients.COX regression analysis was used to identify factors that affect the prognosis of gastric cancer patients.Results GALNT1 mRNA(3.38±0.29)and LAMTOR5 mRNA(3.17±0.26)in gastric cancer tissue were higher than those in adjacent tissues(0.72±0.16,0.65±0.13),and the differences were statistically significant(t=81.111,87.553,all P<0.001).The positive rates of GALNT1(92.16%),LAMTOR5(90.20%)proteins in gastric cancer tissues were higher than those in adjacent tissues(7.84%,11.76%),and the differences were statistically significant(χ2=145.020,125.538,P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA in gastric cancer was positively correlated(r=0.757,P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA in gastric cancer was significantly positively correlated with Snail mRNA,N-cad mRNA and Vimentin mRNA expression(r=0.654,0.712,0.689;0.706,0.645,0.723,all P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA was correlated with TNM stage and lymph node metastasis in gastric cancer patients.The expression of GALNT1 mRNA and LAMTOR5 mRNA in cancer tissues with TNM stage III and lymph node metastasis was higher than that in TNM stage I～II and no lymph node metastasis,and the differences were statistically significant(χ2=29.417～290.104,all P<0.001).The 3-year overall survival rate of the high expression group of GALNT1 mRNA was 40.00%(20/50),which was lower than 76.92%(40/52)of the low expression group,the 3-year overall survival rate of the high expression group of LAMTOR5 mRNA was 38.78%(19/49),which was lower than the 77.36%(41/53)of the low expression group,and the differences were statistically significant(Log-Rank χ2=7.327,5.197,P=0.009,0.023).TNM stage III,lymph node metastasis,GALNT1 mRNA was highly expressed,and high LAMTOR5 mRNA was highly expressed were risk factors affecting the prognosis of gastric cancer(Wald χ2=6.409～16.805,all P<0.001).Conclusion The expression of GALNT1 and LAMTOR5 are elevated in gastric cancer tissues.Both of them are related to EMT indicators and adverse clinicopathological features.They are biomarkers for evaluating the prognosis of gastric cancer patients.

Objective To investigate the correlation and clinical prognostic value between the expression of polypeptide N-acety lgalactosaminyltransferases 1(GALNT1),lysosomal adaptor MTOR activator 5(LAMTOR5),and epithelial mesenchymal transition(EMT)in gastric cancer.Methods 102 gastric cancer patients admitted to Nantong Tumor Hospital from January 2018 to January 2020 were selected.Immunohistochemistry(IHC)and real-time fluorescence quantitative PCR(RT-PCR)were used to detect the expression of GALNT1,LAMTOR5 mRNA and protein,as well as the expression of EMT indicators Snail mRNA,N-cad mRNA and Vimentin mRNA in cancer and adjacent tissues.Pearson correlation analysis was performed to investigate the correlation between markers.Kaplan Meier curve analysis was used to investigate the relationship between GALNT1 mRNA,LAMTOR5 mRNA and the prognosis of gastric cancer patients.COX regression analysis was used to identify factors that affect the prognosis of gastric cancer patients.Results GALNT1 mRNA(3.38±0.29)and LAMTOR5 mRNA(3.17±0.26)in gastric cancer tissue were higher than those in adjacent tissues(0.72±0.16,0.65±0.13),and the differences were statistically significant(t=81.111,87.553,all P<0.001).The positive rates of GALNT1(92.16%),LAMTOR5(90.20%)proteins in gastric cancer tissues were higher than those in adjacent tissues(7.84%,11.76%),and the differences were statistically significant(χ2=145.020,125.538,P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA in gastric cancer was positively correlated(r=0.757,P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA in gastric cancer was significantly positively correlated with Snail mRNA,N-cad mRNA and Vimentin mRNA expression(r=0.654,0.712,0.689;0.706,0.645,0.723,all P<0.001).The expression of GALNT1 mRNA and LAMTOR5 mRNA was correlated with TNM stage and lymph node metastasis in gastric cancer patients.The expression of GALNT1 mRNA and LAMTOR5 mRNA in cancer tissues with TNM stage III and lymph node metastasis was higher than that in TNM stage I～II and no lymph node metastasis,and the differences were statistically significant(χ2=29.417～290.104,all P<0.001).The 3-year overall survival rate of the high expression group of GALNT1 mRNA was 40.00%(20/50),which was lower than 76.92%(40/52)of the low expression group,the 3-year overall survival rate of the high expression group of LAMTOR5 mRNA was 38.78%(19/49),which was lower than the 77.36%(41/53)of the low expression group,and the differences were statistically significant(Log-Rank χ2=7.327,5.197,P=0.009,0.023).TNM stage III,lymph node metastasis,GALNT1 mRNA was highly expressed,and high LAMTOR5 mRNA was highly expressed were risk factors affecting the prognosis of gastric cancer(Wald χ2=6.409～16.805,all P<0.001).Conclusion The expression of GALNT1 and LAMTOR5 are elevated in gastric cancer tissues.Both of them are related to EMT indicators and adverse clinicopathological features.They are biomarkers for evaluating the prognosis of gastric cancer patients.

Objective To investigate the effects of different ventilation strategies on intraocular pressure (IOP) and intracranial pressure in patients undergoing spinal surgery in the prone position under general anesthesia. Methods Seventy-two patients undergoing prone spinal surgery under general anesthesia between November, 2022 and June, 2023 were equally randomized into two groups to receive routine ventilation (with Vt of 8mL/kg, Fr of 12-15/min, and etCO2 maintained at 35-40 mmHg) or small tidal volume hyperventilation (Vt of 6 mL/kg, Fr of18-20/min, and etCO2 maintained at 30-35 mmHg) during the surgery. IOP of both eyes (measured with a handheld tonometer), optic nerve sheath diameter (ONSD;measured at 3 mm behind the eyeball with bedside real-time ultrasound), circulatory and respiratory parameters of the patients were recorded before anesthesia (T0), immediately after anesthesia induction (T1), immediately after prone positioning (T2), at 2 h during operation (T3), immediately after supine positioning after surgery (T4) and 30 min after the operation (T5). Results Compared with those at T1, IOP and ONSD in both groups increased significantly at T3 and T4 (P<0.05). IOP was significantly lower in hyperventilation group than in routine ventilation group at T3 and T4 (P<0.05), and ONSD was significantly lower in hyperventilation group at T4 (P<0.05). IOP was positively correlated with the length of operative time (r=0.779, P<0.001) and inversely with intraoperative etCO2 at T3 (r=-0.248, P<0.001) and T4 (r=-0.251, P<0.001). ONSD was correlated only with operation time (r=0.561, P<0.05) and not with IOP (r=0.178, P>0.05 at T3;r=0.165, P>0.05 at T4). Conclusion Small tidal volume hyperventilation can relieve the increase of IOP and ONSD during prone spinal surgery under general anesthesia.

Objective To investigate the effects of different ventilation strategies on intraocular pressure (IOP) and intracranial pressure in patients undergoing spinal surgery in the prone position under general anesthesia. Methods Seventy-two patients undergoing prone spinal surgery under general anesthesia between November, 2022 and June, 2023 were equally randomized into two groups to receive routine ventilation (with Vt of 8mL/kg, Fr of 12-15/min, and etCO2 maintained at 35-40 mmHg) or small tidal volume hyperventilation (Vt of 6 mL/kg, Fr of18-20/min, and etCO2 maintained at 30-35 mmHg) during the surgery. IOP of both eyes (measured with a handheld tonometer), optic nerve sheath diameter (ONSD;measured at 3 mm behind the eyeball with bedside real-time ultrasound), circulatory and respiratory parameters of the patients were recorded before anesthesia (T0), immediately after anesthesia induction (T1), immediately after prone positioning (T2), at 2 h during operation (T3), immediately after supine positioning after surgery (T4) and 30 min after the operation (T5). Results Compared with those at T1, IOP and ONSD in both groups increased significantly at T3 and T4 (P<0.05). IOP was significantly lower in hyperventilation group than in routine ventilation group at T3 and T4 (P<0.05), and ONSD was significantly lower in hyperventilation group at T4 (P<0.05). IOP was positively correlated with the length of operative time (r=0.779, P<0.001) and inversely with intraoperative etCO2 at T3 (r=-0.248, P<0.001) and T4 (r=-0.251, P<0.001). ONSD was correlated only with operation time (r=0.561, P<0.05) and not with IOP (r=0.178, P>0.05 at T3;r=0.165, P>0.05 at T4). Conclusion Small tidal volume hyperventilation can relieve the increase of IOP and ONSD during prone spinal surgery under general anesthesia.

Objective:To explore the clinical characteristics of Mycoplasma pneumoniae (MP) bronchiolitis to provide references for clinical prevention and treatment.Methods:From January 2019 to January 2020, the clinical data of children diagnosed with MP bronchiolitis in the Department of Respiratory 2 of Hebei Children′s Hospital were retrospectively collected and analyzed, and the patients were followed up to observe the prognosis.Results:Among the 67 children, there were 39 boys and 28 girls, with age of 5 (1-14) years.All the children had cough, 63 cases (94.0%) had fever, 49 cases (77.8%) had high fever (≥39.0 ℃), and the median total fever course was 8(1-27) d; 10 cases (14.9%) had wheezing; 5 cases (7.5%) had dyspnea; 3 cases (4.5%) had hypoxemia; wet rales were heard in 58 cases (86.6%) and wheezing in 10 cases (14.9%). Forty-eight patients (71.6%) had family allergy history or personal allergy history.The average value of peripheral blood white blood cells was (8.6±2.6)×10 9/L; the me-dian of C reactive protein was 9.1(0.5-55.6) mg/L, of which 7 cases (10.4%) were ≥30 mg/L; the median of lactate dehydrogenase was 278(181-590) U/L.Tree bud sign and central lobular nodules were the main findings of high-resolution CT of the chest.Among them, 45 cases (67.2%) had bilateral lesions, 38 cases (56.7%) involved ≥3 lung lobes, and 22 cases (32.8%) had a little lung consolidation, 19 cases (28.4%) had a small amount of pleural effusion.The bronchoscopic features of 35 children (52.2%): 71.4%(25/35 cases) showed white flocculent and cord-like secretions, 17.1%(6/35 cases) displayed mucus plugs blocking the lumen, and 10.9%(4/35 cases) showed no-dular protrusions and granulation tissue hyperplasia.All children were treated with Azithromycin sequentially; 42 children (62.7%) were treated with low-dose hormones, and the average initiation time was on day (10.62±2.71) and the median course was 14(2-42) d. Sixty-seven cases were followed up for half a year, of which 61 cases (91.0%) had almost complete lung recovery, and 6 cases (9.0%) developed bronchiolitis obliterans (BO). Conclusions:MP bronchiolitis mostly occurs in infants and preschool children with a family history of allergies or personal allergies.Fever and cough are the main clinical manifestations.In severe cases, dyspnea and hypoxemia may occur.The physical signs of the lungs are mainly include wet rales, some of which are wheezing.White flocculent and cord-like secretions are the main manifestations of bronchoscopy.After active treatment, most children have a good prognosis, and some children may develop BO.

Hepatocellular carcinoma (HCC) is one of the most common malignant tumors in China. Unfortunately, most of HCC patients were diagnosed at the intermediate or advanced stage, losing the chance to receive the surgical intervention. Locoregional interventional treatment is one of the major therapeutic options for inoperable HCC treatment and prolongs the survival of the patients. Evaluation of the efficacy of the treatment is the important to determine the further therapy strategies. Currently, the evaluation of patients’ response is mainly based on CT and MR anatomic morphological images, but characteristics of tumor biology changes can be observed earlier than the morphological changes. In the recent years, with the development of diffusion weighted imaging (DWI), its value in clinical application has been continuously explored, and it has been increasingly used for quantitative evaluation the diffusion of water molecular and microcirculation perfusion of blood flow in tumor tissue, with some progress in evaluating the tumor response. This paper mainly reviewed the recent research findings of DWI on locoregional interventional treatment for HCC, thereby providing guidance on clinical practice.

Objective:To investigate the difference of curative effect between zero-profile bridge-shaped locking cage (ROI-C) and anterior cage combined with titanium plate fixation in the treatment of two-level and three-level cervical spondylotic myelopathy.Methods:A total of 85 patients (43 males and 42 females), aged 52.3±8.0 years (range from 28 to 66 years) with bi- and three-level cervical spondylotic myelopathy who received surgical treatment from June 2017 to October 2019 were retrospectively analyzed. There were 63 cases of two levels and 22 cases of three levels. 45 cases were treated with zero-profile bridge-shaped locking cage ROI-C (ROI-C group), and 40 cases with anterior cage combined with titanium plate fixation (titanium plate group). The main observation indicators include operation time, intraoperative blood loss, cervical Cobb angle, fusion segment Cobb angle, average intervertebral height, pain visual analogue scale (VAS), Japanese Orthopaedic Association (JOA) Score and neck disability index (NDI).Results:All of 85 patients were followed up for 16.9±2.0 months (range 12 to 22 months). The operation time of two-level ROI-C group was 110.37±8.25 min, which was shorter than 139.5±10.54 min of titanium plate group; the intraoperative blood loss was 15.74±8.10 ml, which was less than 23.71±9.70 ml of titanium plate group; the operation time of three-level ROI-C group was 130.00±5.70 min, which was shorter than 162.83±5.59 min of titanium plate group, while the difference in the intraoperative blood loss between the two groups had no statistical significance. One year after operation, Cobb angle of cervical vertebra in double and three-level ROI-C groups were 15.31°±1.55° and 15.20°±0.42°, respectively, which were largerthan 11.23°±2.03° and 9.20°±1.14° before operation; in titanium plate group, they were 15.89°±1.13° and 16.08°±1.88°, which were higher than 11.25°±2.01° and 9.00°±1.60° before operation, and the differences had statistical significance. The differences between the two groups before operation and 1 year after operation had no statistical significance. One year after operation, the VAS scores of double and three-level ROI-C groups were 1.83±0.66 points and 2.60±0.52 points, respectively, which were less than the preoperative 7.49±0.51 points and 7.60±0.52 points; the titanium plate group was 1.79±0.50 points and 2.41±0.51 points, which were less than the preoperative 7.61±0.63 points and 7.42±0.52 points, and the differences had statistical significance. There was no significant difference between the two groups before operation and 1 year after operation. One year after operation, the JOA scores of double and three-level ROI-C groups were 15.00±0.84 points and 14.70±0.95 points, respectively, which were higher than the preoperative 7.20±0.87 points and 6.60±1.27 points; the scores of titanium plate group were 15.29±0.85 points and 14.83±0.58 points, which were higher than the preoperative 6.89±1.03 points and 6.92±0.67 points, and the differences had statistical significance. The differences between the two groups had no statistical significance. The postoperative JOA improvement rate was excellent. Postoperative dysphagia occurred in 1 case (2.22%, 1/45) in ROI-C group and 8 cases (20.00%, 8/40) in titanium plate group, and the difference in the incidence rate between two groups had statistical significance ( χ2=5.32, P=0.02). Conclusion:Both ROI-C and anterior cage combined with titanium plate fixation in the treatment of double and three-level cervical spondylotic myelopathy can achieve good short-term clinical efficacy, with shorter operation time and lower incidence rate of postoperative dysphagia using ROI-C.

Objective:To understand the current situation of physicians′ competency in China and statistically analyze its influencing factors, hence providing referential evidences for promoting their competency.Methods:The evaluation scale for Chinese physicians′ competency was developed by referring to sophisticated overseas evaluation frameworks. Based on the electronic platform of the medical alliance, stratified sampling was conducted at 39 hospitals in 13 provinces, from which 2 156 physicians were surveyed, and statistical analysis was made on the current situation and influential factor of their competency in 6 dimensions(medical knowledge, diagnosis and treatment, scientific research and teaching, interpersonal communication, spirit of professionalism, population health)Results:The score range in multiple dimensions of physicians′ competency was between 2.85 and 3.89(5 in total), among which spirit of professionalism dimension scores the highest, and teaching and research dimension scores the lowest. Logistic regression analysis shows that their competency level in 6 dimensions is correlated to a range of factors, including gender, degree, title, supervisor qualifications, standardized training program of specialist physicians, and affiliation or not to teaching hospitals( P<0.05). Conclusions:Their overall competency is expected to be elevated. To name a few, they are lack of teaching and research abilities, and need to conduct clinical-oriented scientific research; they are expected to enrich knowledge structure, and need to embrace a wider concept of health; they need to improve their non-technical service abilities, and should further emphasize their humanistic quality; physicians′ practice competency depends upon their extent of medical education, and ensuring the quality of standardized training becomes the key measure.

Objective:To study the predictive value of pretreatment apparent diffusion coefficient (ADC) on prognosis in patients with isolated large hepatocellular carcinoma(SLHCC) treated by combined transcatheter arterial chemoembolization (TACE) and radiofrequency ablation (RFA).Methods:A retrospective analysis was performed on 40 patients with SLHCC who were treated at the Department of Interventional Radiology, the First Medical Center of PLA General Hospital from December 2014 to July 2018, with combined TACE and RFA. There were 34 males and 6 females, with an average age of 55.9 years. All patients underwent enhanced abdominal MRI within 1 week before and 1 month after treatment. The receiver operating characteristic (ROC) curve was used to assess the predictive efficacy value of ADC. The survival curves were plotted by the Kaplan-Meier method and compared with the log-rank test. Univariate and multivariate prognostic analyses were performed using the Cox proportional hazard models.Results:After treatment, there were 18 patients with complete response and 12 with partial response. The objective response rate was 75.0% (30/40). The area under ROC curve of ADC in predicting the effectiveness of TACE combined with RFA (complete response + partial response) was 0.86 (95% CI: 0.74-0.98). The optimal threshold was 1.32×10 -3 mm 2/s, the sensitivity was 0.63, and the specificity was 1.00. The progression-free survival rate and cumulative survival rate in the high ADC group (≥1.32×10 -3mm 2/s, n=19) were better than that in the low ADC group (<1.32×10 -3mm 2/s, n=21), with significant differences (both P<0.05). On multivariate analysis, ADC<1.32×10 -3mm 2/s ( HR=3.711, 95% CI: 1.705-8.074; P<0.05) was an independent risk factor for progression-free survival, while ADC < 1.32×10 -3mm 2/s ( HR=3.518, 95% CI: 1.016-12.185, P<0.05) was an independent risk factor for overall survival. Conclusion:Preoperative ADC was an independent risk factor for prognosis in patients with SLHCC undergoing TACE combined with RFA. It has value in prognostic prediction.

Objectives To analyze the clinical characteristics, treatment and prognosis of necrotizing pneumonia caused by Mycoplasma pneumoniae (MP) infection in children. Method The clinical data of children with necrotizing pneumonia cause by MP infection from October 2016 to October 2017 were retrospectively analyzed. Results A total of 26 children (10 males and 16 females) with an average age of (5.76±2.60) years, were enrolled in the study. All children were characterized by fever and cough. High fever ( ≥ 39.0 ℃) was seen in 23 cases (88.5％) and the total duration of fever was (16.88±7.42) days. Pulmonary auscultation showed a reduction in respiratory sounds in all children. The range of peripheral blood leukocytes were (9.0～36.8) ×109/L, mean peak neutrophil ratio was (69.2±13.2) ％, and the range of C-reactive protein (CRP) was (1～202.5) mg/L. The mean value of lactic dehydrogenase (LDH) was (448±247) U/L. At the beginning of the disease, the chest images showed homogeneous solid high-density images over the whole lung lobe and 20 cases (76.9％) were complicated with pleural effusion. At the later stage, lung CT showed thin-walled cavities or multiple air-containing cysts on the basis of lung consolidation. Fiberoptic bronchoscopy showed lumen obstruction caused by mucus plugs in 23 cases (88.5％) . All the children were treated with methylprednisolone. The dose of 2 mg/ (kg·d) was effective in 21 cases and the fever was relieved in 5 cases after the dose was adjusted to 4 mg/ (kg·d) , and the average hormone application time was (13.08 ± 8.38) d. The median length of hospital stay was [16.5 (7～32) ] d. Two cases were lost to follow-up and 24 cases finished 6-month follow-up. Lung CT showed almost complete recovery of the lungs in 16 cases, residual pleural hypertrophy in 5 cases, and bronchiectasis in 1 case and bronchiolitis obliterans in 2 cases. Conclusion Necrotic pneumonia in children caused by MP infection is characterized by persistent high fever, decreased respiratory sounds, lung consolidation and mucus plugs induced lumen obstruction. The prognosis is relatively good after active anti-infection and hormone therapy.