Dawn of Targeted Therapy Using Claudin18.2 for Gastric Cancer / 肿瘤防治研究

In recent years, significant advancements in molecular biology have paved the way for novel targeted therapeutic strategies for gastric cancer treatment. Claudin18, which is an important structural protein involved in tight junctions between cells, and its subtype Claudin18.2 (CLDN18.2), which is specifically expressed in differentiated gastric epithelial cells, have emerged as novel therapeutic targets for patients with gastric cancer. This article aims to systematically review the latest developments in CLDN18.2 research in the fields of basic and clinical gastric cancer studies to provide a reference for clinical practice.

Isoperistaltic side-to-side anastomosis for the surgical treatment of Crohn disease

Purpose@#Increasing evidence has shown an association of surgical technique, particularly anastomotic configuration, with postoperative recurrence of CD. This pilot study aimed to evaluate short-term outcomes of isoperistaltic side-to-side anastomosis (ISSA) employed on Crohn disease (CD) patients. @*Methods@#Data were retrieved from a prospectively maintained database. Postoperatively, all patients were followed up with close endoscopic (ileocolonoscopy) surveillance. @*Results@#From January 2017 to May 2021, 30 patients diagnosed with CD who underwent ISSA were compared with 45 CD patients who underwent antiperistaltic side-to-side anastomosis (ASSA). The 2 groups were comparable in baseline demographics and clinical characteristics. No significant differences were observed between groups regarding postoperative safety issues, including anastomotic leak, abdominal/pelvic abscess, length of hospital stay, readmission rate within 30 days, etc. At postoperative 24th month, reduced endoscopic recurrence was observed in the ISSA group compared with that in the ASSA group (18 of 24, 75.0%, vs. 36 of 38, 94.7%; P = 0.024). Regarding surgical recurrence, there was 0% in the ISSA group vs. 4.4% (2 of 45) in the ASSA group (P = 0.510). @*Conclusion@#In this study, we aimed to explore the influence of ISSA on postoperative recurrence in CD patients, and the preliminary results show that ISSA was technically safe and feasible, and appears to be effective in reducing postoperative recurrence in CD patients. However, our conclusion was underpowered due to small sample size and inadequate followup. We proposed ISSA be considered as another alternative option in the toolbox of inflammatory bowel disease surgeons when performing anastomosis on CD patients.

Ultrasound-guided post-mortem tissue sampling in the autopsy of COVID-19 cases: a pilot study / 中华超声影像学杂志

Objective:To investigate the application of post-mortem tissue sampling under ultrasonography guidance in the autopsy of COVID-19 cases.Methods:Ultrasound-guided post-mortem tissue sampling of heart, lungs, liver, kidneys, and spleen were performed in 24 confirmed COVID-19 cases in Union Hospital, Tongji Medical College, Huazhong University of Science and Technology from Feb 20 to Mar 28, 2020. Seventeen males and seven females aged 39-91(66.6±10.6) years old were enrolled. The total time required for each post-mortem sampling was recorded, and the size of the samples collected from each organ was measured. The success rate of ultrasound-guided post-mortem tissue sampling for each organ was calculated.Results:Ultrasound images could clearly show the needle path and enabled accurate placement of the needle within the target organs, including heart, lung, liver, kidney, and spleen. The total time required for sampling was about 32-54 (39.8±5.7)min. The lengths of heart, lung, liver, kidney, and spleen tissues collected by ultrasound-guided sampling were 10(8, 14)mm, 13(12, 15)mm, 14(13, 15)mm, 13(11, 15)mm, 14(13, 15)mm, respectively. The success rates of heart, lung, liver, kidney, and spleen tissue sampling under ultrasound guidance were 87.5% (21/24), 91.7%(44/48), 100%(24/24), 89.6%(43/48) and 83.3%(20/24), respectively.Conclusions:Post-mortem sampling under ultrasonography guidance may be a rapid and reliable method for collecting of heart, lung, liver, kidney, and spleen tissues in the autopsy of COVID-19 cases.

Research on the effects of piperine on proliferation and invasion of human bladder cancer T24 ;Cells / 临床外科杂志

Objective To investigate the effects of differentpiperine concentrationson the prolif-eration and invasion of bladder cancer T24 cells.Methods Bladder cancer T24 cells were treated with different concentrations of piperine(5,1 0,20,40,80,and 1 60μmol/L).Then MTT assay,Transwell exper-iments,and western blot were used to detect the expression of bax and bcl-2,and the proliferation and ap-optosis of T24 cells.Results After a 24-hour treatment of piperine,IC50 value was 38.73μmol/L.With the increaseof piperine concentrations,the activity of T24 cell was significantly inhibited in a dose-depend-ent manner.Westernblot showed that the expression of anti-apoptotic protein bcl-2 reduced,and the pro-apoptotic protein bax increased.Conclusion Piperine could inhibit the proliferation of bladder cancer T24 cells and promote the apoptosis of T24 cells.

The role of roentgen stereophotogrammetric analysis in assessing early migration of femoral implant after total hip arthroplasty with modular prostheses / 中华骨科杂志

Objective To investigate the value of roentgen stereophotogrammetric analysis (RSA) in assessing early migration of femoral implant after total hip arthroplasty (THA) with modular prostheses.Methods From May 2009 to April 2010,37 patients underwent THA with modular prostheses inour hospital,including 25 males and 12 females,aged from 58 to 72 years (average,60.23±5.64 years).There were 32 cases of degenerative osteoarthritis,3 cases of femoral neck fracture and 2 cases of developmental dysplasia of the hip.The Harris hip score and RSA were used to assess the clinical results and the migration of femoral implant at 3,6,12,24 months postoperatively,respectively.Results The average Harris hip score improved from preoperative 26.36 ±10.56 to 78.24±12.72,84.51±16.05,86.72±9.34,and 87.55±8.97 at 3,6,12,and 24 months after operation,respectively,and the differences between pre-and post-operative Harris score were significant.There was no prosthetic revision,and slight thigh pain occurred in 3 patients.According to RSA,the degree of initial migration of femoral implant had large individual differences,and the initial migration was higher from 3 to 6 months after operation.Clinical and biological stabilization was achieved in 36 patients,while progressive migration was found in 1 patient.There was a positive correlation between the distal migration and posterior migration within 24 months after operation (r=0.3,P=0.01).The distal migration and posterior migration/rotation mainly occurred within 3 months after operation.There was no correlation between prosthetic size/offset and degree of migration of implant.Conclusion RSA provides an objective reference for assessing the migration of femoral implant after THA with modular prostheses,which is a reliable method to evaluate early implant stability.

Analysis on published scientific papers from 2001 to 2010 by professionals of provincial Center for Disease Control and Prevention in China / 中华医学科研管理杂志

Objectives Through analyzing the published scientific papers from 2001 to 2010 by the professionals of the 31 provincial Center for Disease Control and Prevention in China,offer reference for making plan about scientific research,disciplinary areas,personnel training.Methods Literature quantitative analysis and health statistics methods were used to analyze these papers.Results The professionals in 31 provincial CDC published a total of 22079 papers,Zhejiang 1669(7.56％),Guangxi 1579 (7.15 ％),Jiangsu 1410 (6.39 ％) are the top 3 provinces.The ratio of published papers in Zhonghua medical journal among all the papers are 1366(6.19％),the first three provinces Tianjinlll (13.67％).Beijing160 (13.57％).Shaanxi34 (10.59％).Average papers published by the eastern,central and western regions are 1131,452,444,eastern above western regions (P =0.0065.P =0.0028).Conclusion In recent ten years,the quantity and quality of papers published by the professionals of provincial CDC in China were improved.The unbalanced development exist among eastern,central and western regions,But the majority CDC's papers should be strengthened further.

Applied Value of MR Dynamic Contrast-Enhancement at 3.0T MR Magneton in Diagnosing Infiltrating Ductal Carcinoma of Breast / 实用放射学杂志

Objective To explore the value of MR dynamic contrast-enhancement in diagnosis and differential diagnosis of infiltrating ductal carcinoma of breast at 3.0T MR magneton.Methods 17 cases of breast infiltrating ductal carcinoma underwent plain MRI and MR dynamic contrast-enhanced scan using 3.0T MR scanners with dedicated breast coil.All cases were confirmed by surgery and pathology.MRI signal intensity,morphology and hemodynamic characteristics of lesions were analysed.Results 17 breast infiltrating ductal carcinomas in 17 cases all appeared as masses,low(8/17)or equal(9/17)signal intensity on T_1WI,high(14/17)or equal(3/17)signal intensity on T_2WI.On morphology,the lesions were irregular and lobulated in shape(82.4%,14/17);undefinite margins(12/17)or non-smooth margins(15/17),glitch sign or astral sign(7/17);the lesions showed non-uniform marked enhancement(10/17)or ring enhancement(5/17)after intravenous administration of contrast agent.82.4%(14/17)of the lesions,the blood vessels could be seen gathering around the lesions on the maximum intensity projection(MIP)image.On hemodynamics,the early enhanced ratio for all cases was over 90%;88.2%(15/17)of the lesions,peak enhancement was less than three minutes;the time-signal intensity curve of the lesions appeared as type Ⅱ was 35.3%(6/17)and type Ⅲ was 58.8%(10/17)mostly.Conclusion Dynamic contrast-enhanced MRI manifestations of breast infiltrating ductal carcinoma are of certain characteristics,which may contribute to the diagnosis and differential diagnosis.

The effects of tuina manipulation on the mechanical characteristics of contractual Achilles tendons of rabbits / 中华物理医学与康复杂志

Objective To investigate the effects of tuina manipulation on creep rate and maximal breaking stress of contractural Achilles tendons of rabbits. Methods Twenty-four rabbits were randomly divided into contrac-tural Achilles tendon model group, free activities group and tuina manipulation group. The opposite legs of model group were used as normal controls. Creep rate and maximal breaking stress of Achilles tendons were compared among the 4 groups. Results The average creep rate in tuina manipulation group approximated to that in normal group and was lower than that in model and free activities groups. The average maximal breaking stress in tuina manipulation group approximated to that in normal group and was higher than that in model and free activities groups. Conclusion Tuina manipulation can promote the creep rate and maximal breaking stress of contractura Achilles tendon approximately to normal level. Tuina manipulation may be useful in rehabilitation.

Evaluation of clinical effects of AO clavicula hook plate in treatment of complete acromioclavicular dislocation / 中华创伤骨科杂志

Objective To evaluate the clinical effects of AO clavicula hook plate in treatment of acromioclavicular dislocation. Methods According to the specific anatomic, physiological and biomechanical conditions of the patients, 43 cases of complete acromioclavicular dislocation were treated either by AO clavicula hook plate (23 cases),or by Kirschner pin and steer wire tension band (20 cases). Results The results were evaluated by radiographic representations and joint function recovery according to Karlsson's criteria. The excellent results of the 2 methods were 95.6% and 65% respectively. There was significant difference. Conclusions The AO clavicula hook plate can meet the clinic requirements and be used with satisfactory results in the treatment of acromioclavicular dislocation.