Advances in the application of three-dimensional visualization technique in hepatic alveolar echinococcosis / 临床肝胆病杂志

Hepatic alveolar echinococcosis (HAE) is a parasitic disease caused by Echinococcus multilocularis infection and has wide distribution and great harm in China. At present, ultrasound, CT, and MRI are the main radiological examination methods for HAE, with certain limitations in preoperative diagnosis and evaluation. This article introduces the guiding effect of three-dimensional visualization technique and its derivative technologies in the accurate diagnosis and preoperative evaluation of HAE, so as to provide help for the clinical diagnosis and treatment of HAE in the future.

Atypical magnetic resonance imaging findings, misdiagnosis analysis and functional imaging value of primary central nervous system lymphoma / 中国医师杂志

Objective:To observe and analyze the atypical magnetic resonance imaging (MRI) findings and misdiagnosis reasons of primary central nervous system lymphoma (PCNSL), and to explore the value of conventional MRI signs combined with minimum apparent diffusion coefficient value (ADCmin) and imaging features of magnetic resonance spectroscopy (MRS) in the diagnosis and differentiation of atypical PCNSL.Methods:The clinical and imaging data of 15 patients with atypical PCNSL confirmed by clinical and pathological findings from Lianyungang Second People′s Hospital and the Affiliated Hospital of Xuzhou Medical University from January 2015 to December 2020 was collected. All cases were examined by plain MRI, enhanced and diffusion weighted imaging (DWI), and 3 cases were examined by MRS. The conventional MRI features, DWI signal features and MRS imaging features of 15 cases of atypical PCNSL were observed and analyzed, and the MRI findings of atypical PCNSL and the causes of misdiagnosis were summarized and analyzed. The ADCmin of tumor parenchyma, the mean ADC values of proximal peritumor, distal peritumor and contralateral white matter were detected and compared to explore the variation rules of ADC values in different regions.Results:Of the 15 cases of PCNSL, 14 cases were single and 1 case was multiple, with a total of 21 lesions. (1) Single lesions in rare sites: 4 cases in the superficial part of the brain, 1 case in the bridge arm, 1 case in the cerebellar hemisphere, 1 case in the suprasellar saddle, and 1 case in the third ventricle. (2) Atypical MRI findings: cystic degeneration or necrosis in 5 lesions (5/21), accompanied by hemorrhage in 1 lesion (1/21); There were 3 isosensitive lesions on DWI, and isosensitive lesions on ADC false color images. There were 5 ring enhancement lesions and 3 sheet enhancement lesions. (3) Multi-center growth pattern: 1 case with a total of 7 lesions, located in the right thalamus, basal ganglia and corona radiata, showing multiple nodules and ring enhancement. 1H-MRS examination showed that choline (Cho) peak increased, creatine (Cr) peak decreased, N-acetyl aspartate (NAA) peak decreased, and obvious Lip peak appeared in all the 3 cases with single lesions. 2 cases showed high Lip peak as the first peak. The ADCmin values of tumor parenchyma, proximal peritumor, distal peritumor and contralateral white matter showed a parabola pattern of first rise and then decline, as follows: (0.54±0.06)×10 -3 mm 2/s, (1.55±0.10)×10 -3 mm 2/s, (1.45±0.09)×10 -3 mm 2/s, (0.85±0.03)×10 -3 mm 2/s, overall difference was statistically significant ( F=630.570, P<0.001). The pairwise comparison was statistically significant (all P<0.05). Conclusions:Atypical PCNSL is easy to be misdiagnosed. Conventional MRI feature analysis combined with DWI and MRS imaging features and comparison of ADC values in different tumor areas are helpful for the diagnosis and differentiation of PCNSL and are expected to improve diagnostic accuracy.

Research progress on the prognostic value of the ratio of lymphocytes to C-reactive protein in digestive system neoplasms / 国际肿瘤学杂志

Tumor-associated inflammation is closely related to the development of tumors. The ratio of lymphocytes to C-reactive protein (LCR) is a new marker reflecting the inflammatory state of the body, which plays an important role in predicting the prognosis of digestive system neoplasms. Compared with the detection of lymphocytes or C-reactive protein alone, this marker has higher sensitivity and accuracy, and can provide a new direction for clinical diagnosis and treatment of digestive system neoplasms.

Hepatic cystic echinococcosis complicated with tuberculous empyema misdiagnosed as hepatic and pulmonary cystic echinococcosis: one case report / 中国血吸虫病防治杂志

Hepatic cystic echinococcosis is a chronic parasitic disease caused by the infection with the larvae of Echinococcus granulosus in human or animal liver tissues. As a chronic active infectious disease, tuberculous empyema mainly invades the pleural space and then causes visceral and parietal pleura thickening. It is rare to present comorbidity for hepatic cystic echinococcosis and tuberculous empyema. This case report presents a case of hepatic cystic echinococcosis complicated with tuberculous empyema misdiagnosed as hepatic and pulmonary cystic echinococcosis, aiming to improve clinicians’ ability to distinguish this disorder.

Consensus of experts on the medical risk prevention for the patients with cardiovascular diseases during dental treatment (2022 edition) / 中华口腔医学杂志

With the aging process of population in the society, the prevalence of cardiovascular diseases (CVD) in China is increasing continuously and the number of dental patients with CVD is increasing gradually too. Due to the lack of guidelines for dental patients with CVD in our country, how to implement standardized preoperative evaluation and perioperative risk prevention remains a problem to be solved for dentists at present. The present expert consensus was reached by combining the clinical experiences of the expert group of the Fifth General Dentistry Special Committee, Chinese Stomatological Association and respiratory and cardiology experts in diagnosis and treatment for CVD patients, and by systematically summarizing the relevant international guidelines and literature regarding the relationship between CVD and oral diseases and the diagnosis and treatment of dental patients with heart failure, hypertension and antithrombotic therapy. The consensus aims to provide, for the dental clinicians, the criteria on diagnosis and treatment of CVD in dental patients in China so as to reduce the risk and complications, and finally to improve the treatment levels of dental patients with CVD in China.

One-year follow-up results of atrial fibrillation patients who undergoing transcatheter aortic valve implantation / 中华心血管病杂志

Objective: To investigate whether atrial fibrillation (AF) before transcatheter aortic valve implantation (TAVI) will affect the prognosis of patients post TAVI. Methods: This is a single center retrospective study. A total of 115 patients with severe aortic stenosis (AS) who were admitted to General Hospital of Northern Theater Command from May 2016 to November 2020 and successfully received TAVI treatment were included. According to absence or accompaniment of AF pre-TAVI, they were divided into AF group (21 cases) and non-AF group (94 cases). The patients were followed up for postoperative antithrombotic treatment and the occurrence of the net adverse clinical and cerebrovascular events (NACCE) at 12 months post TAVI, including cardiogenic death, readmission to hospital for heart failure, nonfatal myocardial infarction, ischemic stroke and severe bleeding (BARC levels 3-5). Univariate logistic regression was used to analyze the related factors of NACCE. Results: Among the 115 selected patients, age was (73.8±6.9) years, there were 63 males. And 21 cases (18.2%) were diagnosed as AFbefore TAVI. In terms of postoperative antithrombotic therapy, 48.9% (46/94) of the patients in the non-AF group received monotherapy and 47.9% (45/94) received dual antiplatelet therapy. In the AF group, 47.6% (10/21) received anticoagulants and 33.3% (7/21) received dual antiplatelet therapy. The proportion of patients in the AF group taking non-vitamin K antagonist oral anticoagulants (NOAC) was higher than that in the non-AF group (38.1% (8/21) vs. 2.1% (2/94), P<0.001). Patients in both groups were followed up to 12 months after TAVI. During the 12 months follow-up, the incidence of NACCE after TAVI was 14.3% (3/21) in the AF group, which was numerically higher than that in the non-AF group (6.4% (6/94)), but the difference was not statistically significant (P=0.441). The incidence of severe bleeding was significantly higher in the AF group than in the non-AF group (9.5% (2/21) vs. 0, P=0.032). Univariate logistic regression analysis showed that hypertension was associated with the risk of NACCE (OR=8.308, P=0.050), while AF was not associated with the risk of NACCE (P=0.235). Conclusion: The incidence of severe bleeding after TAVI is higher in patients with AF than in patients without AF prior TAVI, and there is a trend of increased risk of NACCE post TAVI in AF patients.

Effect of Echinococcus multilocularis secreted antigen on the phenotype and function of mouse bone marrow - derived dendritic cells induced by lipopolysaccharide / 临床肝胆病杂志

Objective To investigate the effect of different concentrations of Echinococcus multilocularis secretion antigen (Em-sAg) on the phenotype and function of mouse bone marrow-derived dendritic cells (BMDCs) induced by lipopolysaccharide (LPS). Methods The bone marrow precursor cells isolated from the mouse bone marrow cavity were stimulated by mouse recombinant granulocyte-macrophage colony-stimulating factor (GM-CSF) to form BMDCs, and then cell morphology was observed under an inverted microscope. After the purity of BMDCs was identified by flow cytometry, BMDCs were divided into control group, positive control group (LPS 1 μg/ml), LPS+3 mg/ml Em-sAg group, LPS+1.5 mg/ml Em-sAg group, LPS+0.75 mg/ml Em-sAg group, and LPS+0.375 mg/ml Em-sAg group. Flow cytometry was used to measure the expression of BMDC surface molecules (CD80, CD86, and MHC-Ⅱ molecules) in each group, and ELISA was used to measure the expression level of the cytokine IL-12p70. A one-way analysis of variance was used for comparison of normally distributed continuous data between multiple groups, and the least significant difference t -test was used for further comparison between two groups. Results Observation under an inverted microscope showed that after 8-10 days of culture, the cells had burr-like protrusions and were in a state of complete suspension. Flow cytometry showed that the positive rate of CD11c was above 70% and most of the cultured cells were identified as BMDCs based on this. Flow cytometry further showed that compared with the control group, the LPS group had significant increases in the cell molecules CD80, CD86, and MHC-Ⅱ on surface (all P 0.05). ELISA showed that there was a significant difference in the level of IL-12 p70 between groups ( F =73.140, P < 0.05); compared with the control group, the LPS group had a significant increase in the expression level of IL-12p70 after stimulation ( P < 0.05); compared with the positive control group, the LPS+3 mg/ml Em-sAg group, the LPS+1.5 mg/ml Em-sAg group, the LPS+0.75 mg/ml Em-sAg group, and the LPS+0.375 mg/ml Em-sAg group had a significant reduction in the expression level of IL-12p70 ( P < 0.05), and the degree of reduction in the pro-inflammatory factor IL-12p70 increased with the increase in the concentration of Em-sAg. Conclusion Different concentrations of Em-sAg can inhibit LPS-induced maturity of BMDCs and the expression of the pro-inflammatory cytokine IL-12p70.

Research on the doctors′ willingness of working at primary institutions and the economic incentive effect from the perspective of mental account / 中华医院管理杂志

Objective:To understand the incentive effect and influencing factors of the current economic incentive policy for medical alliances in Longhua District of Shenzhen(the alliance for short) on doctors′ willingness to work at primary medical institutions(the primary for short) from the perspective of mental account, and to explore the economic incentive effect of different economic incentive distribution methods on doctors′ willingness to work at the primary.Methods:The questionnaire was designed based on mental account theory. Random sampling was made in November 2019 for a questionnaire survey among doctors in two district-level medical institutions of the alliance in Longhua District of Shenzhen. The purpose was to analyze their inclination to work at the primary and their selection preferences for economic incentive distribution methods under the current economic incentive policy. The data were analyzed by descriptive analysis, and the influencing factors of doctors′ willingness to work at the primary were analyzed by χ2 test and binary logistic regression. Results:A total of 254 valid questionnaires were collected with an effective recovery rate of 90.7%. Among the respondents, 189(74.4%) were willing to work at the primary, 168(66.1%) chose to receive the economic incentives specifically for working at the primary, and 148 people(58.3%) hoped to receive such economic incentives immediately. Education background, self-rated economic income level of doctors and different payment methods of economic incentive for working at the primary had significant effects on their willingness to work at the primary( P<0.05). Conclusions:The current economic incentive policy of the alliance can meet the demands for economic incentives in terms of doctors′ material accounts, and doctors′ overall inclination to work at the primary was strong. If the amount of economic incentives is constant, doctors preferred to receive the economic incentives specifically, mainly affected by income accounts and additional income accounts. In addition, education and self-assessment of economic income level were important factors affecting the willingness of doctors to work at the primary, which may be affected by mental accounts other than material accounts.

Intravenous route to choroidal neovascularization by macrophage-disguised nanocarriers for mTOR modulation

Retinal pigment epithelial (RPE) is primarily impaired in age-related macular degeneration (AMD), leading to progressive loss of photoreceptors and sometimes choroidal neovascularization (CNV). mTOR has been proposed as a promising therapeutic target, while the usage of its specific inhibitor, rapamycin, was greatly limited. To mediate the mTOR pathway in the retina by a noninvasive approach, we developed novel biomimetic nanocomplexes where rapamycin-loaded nanoparticles were coated with cell membrane derived from macrophages (termed as MRaNPs). Taking advantage of the macrophage-inherited property, intravenous injection of MRaNPs exhibited significantly enhanced accumulation in the CNV lesions, thereby increasing the local concentration of rapamycin. Consequently, MRaNPs effectively downregulated the mTOR pathway and attenuate angiogenesis in the eye. Particularly, MRaNPs also efficiently activated autophagy in the RPE, which was acknowledged to rescue RPE in response to deleterious stimuli. Overall, we design and prepare macrophage-disguised rapamycin nanocarriers and demonstrate the therapeutic advantages of employing biomimetic cell membrane materials for treatment of AMD.

Geranyl phenyl ethers from Illicium micranthum and their anti-HBV activity / 中国天然药物

Fourteen new geranyl phenyl ethers (1-14) along with three known compounds (15-17) were isolated from Illicium micranthum, and their structures were elucidated by comprehensive spectroscopic methods. Illimicranins A-H (1-8) were characterized as geranyl vanillin ethers, while 9 and 10 were dimethyl acetal derivatives. Illimicranins I and J (11 and 12) were rare geranyl isoeugenol ethers. Illimicranins K and L (13 and 14) represented the first example of geranyl guaiacylacetone ether and geranyl zingerone ether, respectively. Compounds 1, 2 and 15 exhibited anti-HBV (hepatitis B virus) activity against HBsAg (hepatitis B surface antigen) and HBeAg (hepatitis B e antigen) secretion, and HBV DNA replication.

Transoral robotic surgery for treatment of lingual thyroglossal duct cyst / 中华耳鼻咽喉头颈外科杂志

Objective: To investigate the feasibility, safety and efficacy of transoral robotic surgery (TORS) in the treatment of lingual thyroglossal duct cyst (LTGDC). Methods: The clinical data of 10 patients with LTGDC treated with TORS in Tongji Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology from May 2017 to November 2020 were analyzed retrospectively,including 6 males and 4 females, aged 5-44 years. The cysts were fully exposed, and resection usually started from the cephalic side of lesions. The range of resection was 3 to 5 mm away from the lesions, and partial hyoid bone was removed if necessary. Intra-operative robotic set-up time,operation time and estimated blood loss,and post-operative local bleeding, dyspnea and recovery time for oral intake were analyzed. SPSS 12.0 software was used for statistical analysis. Results: The cysts in all 10 patients were successfully resected by TORS with da Vinci Si surgical system. The mean robotic set-up and exposure time, operation time, estimated intraoperative blood loss and recovery time for oral intake were (15.5±7.1) min, (17.6±7.4) min, (8.9±6.4)ml and (2.3±2.2)days, respectively. No patient required tracheostomy intra-or post-operatively, and no symptoms of airway obstruction, postoperative bleeding, pharyngeal fistula, hoarseness and neurological impairment occurred after operation. The patients were followed up for 5 to 47 months, with median follow-up time of 17 months, and no recurrence was observed. Conclusion: TORS is safe and feasible for resection of LTGDC, with rapid recovery and low recurrence rate.

Technological evolution of laparoscopic gastrointestinal surgery in China / 中华胃肠外科杂志

After 30 years of development in China, laparoscopic gastrointestinal surgery has been widely accepted and popularized. In recent years, the application of a series of novel technologies, such as 3D laparoscopic system, 4k high-definition laparoscopy, near-infrared fluorescence imaging technique and telesurgery with 5G wireless system has injected new vitality to the laparoscopic gastrointestinal surgery in new era. It also well contributes to the further promotion and standardization of minimally invasive gastrointestinal surgery. This article reviews the application and development of novel techniques in minimally invasive gastrointestinal surgery. It is concluded that great progress has been made in clinical application of minimally invasive gastrointestinal surgery in China. In terms of surgical technology and equipment development, the period of mechanical imitation has passed and a new era focusing on innovation and originality is coming in China. The authors believe that Chinese laparoscopic gastrointestinal surgeons should remember their original intention, insist on the patient-centered concept in diagnosis and treatment, maintain innovative thinking and attitude and thus, push the development of minimally invasive gastrointestinal surgery to a new height in China.

The accuracy and influencing factors of sleep staging based on single-channel EEG via a deep neural network / 中华耳鼻咽喉头颈外科杂志

Objective: To investigate theaccuracy of artificial intelligence sleep staging model in patients with habitual snoring and obstructive sleep apnea hypopnea syndrome (OSAHS) based on single-channel EEG collected from different locations of the head. Methods: The clinical data of 114 adults with habitual snoring and OSAHS who visited to the Sleep Medicine Center of Beijing Tongren Hospital from September 2020 to March of 2021 were analyzed retrospectively, including 93 males and 21 females, aging from 20 to 64 years old. Eighty-five adults with OSAHS and 29 subjects with habitual snoring were included. Sleep staging analysis was performed on the single lead EEG signals of different locations (FP2-M1, C4-M1, F3-M2, ROG-M1, O1-M2) using the deep learning segmentation model trained by previous data. Manual scoring results were used as the gold standard to analyze the consistency rate of results and the influence of different categories of disease. Results: EEG data in 124 747 30-second epochs were taken as the testing dataset. The model accuracy of distinguishing wake/sleep was 92.3%,92.6%,93.5%,89.2% and 83.0% respectively,based on EEG channel Fp2-M1, C4-M1, F3-M2, REOG-M1 or O1-M2. The mode accuracy of distinguishing wake/REM/NREM and wake/REM/N1-2/SWS , was 84.7% and 80.1% respectively based on channel Fp2-M1, which located in forehead skin. The AHI calculated based on total sleep time derived from the model and gold standard were 13.6[4.30,42.5] and 14.2[4.8,42.7], respectively (Z=-2.477, P=0.013), and the kappa coefficient was 0.977. Conclusions: The autonomic sleep staging via a deep neural network model based on forehead single-channel EEG (Fp2-M1) has a good consistency in the identification sleep stage in a population with habitual snoring and OSAHS with different categories. The AHI calculated based on this model has high consistency with manual scoring.

Progress of researches on roles of dendritic cells in immune tolerance caused by Echinococcus infections / 中国血吸虫病防治杂志

Dendritic cells (DCs), a type of antigen-presenting cells (APC), are recognized as an important regulator of immune response and immune tolerance, and play a critical role in the host innate immunity and adaptive immunity. Previous studies have shown that the long-term parasization of Echinococcus in the host is strongly associated with the host immune tolerance induced by DCs. This review summarizes the research progress of the role of DCs in host immune tolerance caused Echinococcus infection, aiming to provide the theoretical basis and insights into the management and immunotherapy of Echinococcus infections.

Correlation between fish intake and cognitive function in the elderly / 中华老年医学杂志

Objective:To explore the correlation between fish intake and cognitive function in the elderly.Methods:Based on data for Hubei province of the Chinese Health and Nutrition Survey 2015, 335 participants aged 60 and over were included in the study.Face-to-face cognitive screening was used to evaluate cognitive function.Fish intake was converted into four classifications: 0 g/d, 0-50 g/d, 50-100 g/d, and >100 g/d.The multiple linear regression model was used to analyze the correlation between fish intake and cognitive function in the elderly.Results:There were 335 subjects, including 142 males(42.4%)and 193 females(57.6%). In the overall population( F=4.19, P=0.006)and females( F=2.30, P=0.079), cognitive scores of the elderly increased with increased fish intake, but no increase was found in males( F=1.99, P=0.119). After adjusting for confounding factors such as age, sex, urban and rural living, education level, marital status, smoking, alcohol consumption, daily total energy intake, dietary fat-to-energy intake ratio, BMI, history of hypertension and stroke, fish intake >100 g/d in the elderly was positively correlated with the cognitive score( β=2.68, 95% CI: 0.38-4.98), compared with the lowest fish intake group(0 g/d); gender-stratified analysis showed that the regression coefficient was 4.26(95% CI: 1.23-7.30)for women and 1.70(-1.76-5.15)for men. Conclusions:Increased fish intake is positively correlated with improved cognitive function in elderly women, but the same is not true in elderly men.Increasing fish intake may be beneficial in preventing cognitive decline in elderly women.

Effect of hepatic volume change on clinical practice in patients with extensive hepatic vein occluded Budd-Chiari Syndrome treated with TIPS / 中华肝胆外科杂志

Objective:To investigate the changes of liver volume and liver function in patients with extensive hepatic vein occluded Budd-Chiari syndrome (BCS) treated with transjugular intrahepatic portosystem shunt (TIPS).Methods:The clinical data of 29 BCS patients from Affiliated Hospital of Xuzhou Medical University during March 2016 to June 2019 were retrospectively collected and analyzed. The BCS was caused by extensive hepatic vein occlusion and patients were treated with TIPS. Pre- and postoperative abdominal CT/MRI images were collected and analyzed, and hepatic volume was measured with 3D-reconstruction. The liver volume and liver function during before and post the surgery were also collected and analyzed with preoperative value.Results:Patients including 8 males and 21 females, aged (33.3±6.3) years, were enrolled in this study. TIPS was successfully performed in all patients, with a technical success rate 100%. No serious complications related to TIPS occurred. Patients were followed up for 12-33 months (median, 16 months). Compared with preoperative [(2 124.6±420.9) cm 3] , the hepatic volume of time points after operation [1 week: (1 926.3±372.3) cm 3; 3 months: (1 480.6±183.1) cm 3; 6 months: (1 461.9±153.0) cm 3; 12 months: (1 469.3±148.5) cm 3] were all significantly reduced, and the differences were statistically significant ( P<0.05). Compared with preoperative values, the hepatic function indexes at each time point after operation were significantly improved ( P<0.05). The complete remission rate of ascites was 96.4% (27/28), 100.0% (28/28) and 100.0% (28/28) at 3, 6 and 12 months, respectively. Conclusion:The extensive hepatic vein occlusive BCS patients were benefit from TIPS therapy. Six months after operation, the hepatic volume and the hepatic function returned to normal level.

Comparison of neoadjuvant chemotherapy followed by surgery vs. surgery alone for locally advanced gastric cancer: a meta-analysis / 中华医学杂志(英文版)

BACKGROUND@#The neoadjuvant chemotherapy is increasingly used in advanced gastric cancer, but the effects on safety and survival are still controversial. The objective of this meta-analysis was to compare the overall survival and short-term surgical outcomes between neoadjuvant chemotherapy followed by surgery (NACS) and surgery alone (SA) for locally advanced gastric cancer.@*METHODS@#Databases (PubMed, Embase, Web of Science, Cochrane Library, and Google Scholar) were explored for relative studies from January 2000 to January 2021. The quality of randomized controlled trials and cohort studies was evaluated using the modified Jadad scoring system and the Newcastle-Ottawa scale, respectively. The Review Manager software (version 5.3) was used to perform this meta-analysis. The overall survival was evaluated as the primary outcome, while perioperative indicators and post-operative complications were evaluated as the secondary outcomes.@*RESULTS@#Twenty studies, including 1420 NACS cases and 1942 SA cases, were enrolled. The results showed that there were no significant differences in overall survival (P = 0.240), harvested lymph nodes (P = 0.200), total complications (P = 0.080), and 30-day post-operative mortality (P = 0.490) between the NACS and SA groups. However, the NACS group was associated with a longer operation time (P < 0.0001), a higher R0 resection rate (P = 0.003), less reoperation (P = 0.030), and less anastomotic leakage (P = 0.007) compared with SA group.@*CONCLUSIONS@#Compared with SA, NACS was considered safe and feasible for improved R0 resection rate as well as decreased reoperation and anastomotic leakage. While unbenefited overall survival indicated a less important effect of NACS on long-term oncological outcomes.

Clinical, endoscopic and pathological characteristics of synchronous multiple early gastric cancer / 中华消化内镜杂志

Objective:To investigate the clinical, endoscopic and pathological characteristics of synchronous multiple early gastric cancer (SMEGC), and to reduce the rate of missed diagnosis.Methods:Clinical data of 227 early gastric cancer patients treated by endoscopic submucosal dissection (ESD) and/or surgery in Songjiang Hospital, Shanghai Jiaotong University School of Medicine from January 2017 to December 2019 were retrospectively analyzed. The differences of clinical, endoscopic and pathological characteristics between solitary early gastric cancer (SEGC) group (200 cases) and SMEGC group (27 cases) were compared. The relevance of endoscopic and pathological features of major and minor lesions of SMEGC was also analyzed.Results:Among the 227 early gastric cancer patients, 27 (11.9%) were SMEGC (58 lesions), of which 25 cases were detected preoperatively, and 2 cases were reexamined within 6 months after surgery with another lesion found at a different site from the previous lesion. In the SMEGC group, the percentages of male and atrophy and intestinal metaplasia in surrounding mucosa were significantly higher than those of the SEGC group [85.2% (23/27) VS 61.5% (123/200), χ2=5.815, P=0.016; 96.3% (26/27) VS 81.0% (162/200), χ2=3.912, P=0.048]. The mean age of the SMEGC group was significantly higher than that of the SEGC group (68.7±6.7 years VS 63.8±9.8 years, t=-2.561, P=0.011). The correlation analysis showed a significant correlation between the major and minor lesions of SMEGC in the size of lesion ( r=0.640, P<0.001), vertical location ( r=0.518, P=0.006), macroscopic type ( r=0.904, P<0.001) and depth of invasion ( r=0.470, P=0.013). Conclusion:SMEGC is prevalent in elderly males with atrophic gastritis and intestinal metaplasia. It is necessary to be alert to the possibility of multiple cancer lesions, if an early cancer lesion is found under endoscopy, especially those that may have the same or similar shape and invasion depth in the same vertical distribution range.

Application of a new scoring system of gastric cancer screening to health examination population in health system / 中华消化内镜杂志

Objective:To explore the efficiency of a new scoring system of gastric cancer screening for early gastric cancer in health examination population.Methods:The risk score of gastric cancer was assessed based on the new scoring system in health examination population. A notice for further gastroscopy was sent to the medium-risk and high-risk people. Gastroscopy was performed on those who agreed to undergo the examination.Results:From January to April 2019, a total of 5 357 people in health system visited the Physical Examination Center of Shanghai Songjiang Clinical Medical College of Nanjing Medical University for health examination. Seven hundred and forty people were classified as medium- and high-risk groups by the new screening system, 576 in medium-risk group, and 164 in high-risk group. Among them, 131 cases (17.70%) came for further gastroscopy, of whom 91 (69.47%) were in the medium-risk group and 40 (30.53%) in the high-risk group. After gastroscopy, 4 cases of gastric cancer and 1 case of esophageal cancer were detected, and both were early cancer. In the medium-risk group, 2 cases (2/91, 2.20%) of early gastric cancer and 1 case (1/91, 1.10%) of early esophageal cancer were found. In the high-risk group, 2 cases (2/40, 5.00%)of early gastric cancer were found. The tumor detection rate of high-risk group (5.00%) was higher than that of medium-risk group (3.30%), but there was no significant difference ( P>0.05). Conclusion:Risk stratification with the new scoring system of gastric cancer screening can improve the detection rate of early gastric cancer.

Effect of the expression level of long-chain non-coding RNA MEG3 and DNA demethylase TET2 on the aggressiveness of pituitary growth hormone adenoma / 中国医师进修杂志

Objective:To investigate the role of long-chain non-coding RNA MEG3 and DNA demethylase TET2 in the invasive growth of pituitary growth hormone (GH) adenomas, and provide research directions for the subsequent exploration of molecular biological mechanisms.Methods:All of 60 patients with GH pituitary adenomas diagnosed in Dalian Central Hospital from January 2016 to November 2019 were collected, and the normal anterior pituitary tissue samples of 10 patients with traumatic brain injury without neurological or endocrine system diseases were collected as control group. Real-time reverse transcription-polymerase chain reaction (qPCR) was used to detect the expression of lnc RNA MEG3 and TET2 in normal pituitary tissue as well as invasive and non-invasive pituitary growth hormone adenomas, and the differences between each groups were analyzed. At the same time, age and gender were included in the research, and the effects of age and gender on the invasive growth of pituitary GH adenomas were analyzed.Results:The aggressive growth of MEG3 and TET2 was independent of patients′ age and gender. The expression of lncRNA MEG3 in invasive pituitary GH adenoma and non-invasive pituitary GH adenoma was significantly lower than that in normal control brain tissue. Analysis of the differences between the groups found that the expression level of lncRNA MEG3 in normal trauma control pituitary tissues, non-invasive GH adenomas, and invasive GH adenomas were sequentially decreased, and MEG3 expression level was related to the aggressive growth behavior of pituitary GH adenomas ( P<0.05). The expression levels of DNA demethylase TET2 in invasive pituitary GH adenomas and non-invasive pituitary GH adenomas were significantly lower than those in the normal control brain tissue, and the expression levels in the three groups of samples gradually decreased ( P<0.05). It suggested that the expression of lncRNA MEG3 was positively correlated with the expression of DNA demethylase TET2. Conclusions:The low expression of lncRNA MEG3 and DNA demethylase TET2 is closely related to the aggressiveness of pituitary growth hormone adenoma.