1.Clinical value of lymph node dissection of No. 14cd during pancreaticoduodenectomy in patients with pancreatic head carcinoma.
Peng Fei WU ; Kai ZHANG ; Lei TIAN ; Jie YIN ; Ji Shu WEI ; Chun Hua XI ; Jian Min CHEN ; Feng GUO ; Zi Peng LU ; Yi MIAO ; Kui Rong JIANG
Chinese Journal of Surgery 2023;61(7):582-589
		                        		
		                        			
		                        			Objectives: To evaluate the positive rate of left posterior lymph nodes of the superior mesenteric artery (14cd-LN) in patients undergoing pancreaticoduodenectomy for pancreatic head carcinoma,to analyze the impact of 14cd-LN dissection on lymph node staging and tumor TNM staging. Methods: The clinical and pathological data of 103 consecutive patients with pancreatic cancer who underwent pancreaticoduodenectomy at Pancreatic Center,the First Affiliated Hospital of Nanjing Medical University from January to December 2022 were analyzed,retrospectively. There were 69 males and 34 females,with an age(M (IQR))of 63.0 (14.0) years (range:48.0 to 86.0 years). The χ2 test and Fisher's exact probability method was used for comparison of the count data between the groups,respectively. The rank sum test was used for comparison of the measurement data between groups. Univariate and multivariate Logistic regression analyzes were used for the analysis of risk factors. Results: All 103 patients underwent pancreaticoduodenectomy successfully using the left-sided uncinate process and the artery first approach. Pathological examination showed pancreatic ductal adenocarcinoma in all cases. The location of the tumors was the pancreatic head in 40 cases,pancreatic head-uncinate in 45 cases,and pancreatic head-neck in 18 cases. Of the 103 patients,38 cases had moderately differentiated tumor and 65 cases had poorly differentiated tumor. The diameter of the lesions was 3.2 (0.8) cm (range:1.7 to 6.5 cm),the number of lymph nodes harvested was 25 (10) (range:11 to 53),and the number of positive lymph nodes was 1 (3) (range:0 to 40). The lymph node stage was stage N0 in 35 cases (34.0%),stage N1 in 43 cases (41.7%),and stage N2 in 25 cases (24.3%). TNM staging was stage ⅠA in 5 cases (4.9%),stage ⅠB in 19 cases (18.4%),stage ⅡA in 2 cases (1.9%),stage ⅡB in 38 cases (36.9%),stage Ⅲ in 38 cases (36.9%),and stage Ⅳ in 1 case (1.0%). In 103 patients with pancreatic head cancer,the overall positivity rate for 14cd-LN was 31.1% (32/103),and the positive rates for 14c-LN and 14d-LN were 21.4% (22/103) and 18.4% (19/103),respectively. 14cd-LN dissection increased the number of lymph nodes (P<0.01) and positive lymph nodes (P<0.01). As a result of the 14cd-LN dissection,the lymph node stage was changed in 6 patients,including 5 patients changed from N0 to N1 and 1 patient changed from N1 to N2. Similarly,the TNM stage was changed in 5 patients,including 2 patients changed from stage ⅠB to ⅡB,2 patients changed from stage ⅡA to ⅡB,and 1 patient changed from stage ⅡB to Ⅲ. Tumors located in the pancreatic head-uncinate (OR=3.43,95%CI:1.08 to 10.93,P=0.037) and the positivity of 7,8,9,12 LN (OR=5.45,95%CI:1.45 to 20.44,P=0.012) were independent risk factors for 14c-LN metastasis; while tumors with diameter >3 cm (OR=3.93,95%CI:1.08 to 14.33,P=0.038) and the positivity of 7,8,9,12 LN (OR=11.09,95%CI:2.69 to 45.80,P=0.001) were independent risk factors for 14d-LN metastasis. Conclusion: Due to its high positive rate in pancreatic head cancer,dissection of 14cd-LN during pancreaticoduodenectomy should be recommended,which can increase the number of lymph nodes harvested,provide a more accurate lymph node staging and TNM staging.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Pancreaticoduodenectomy/methods*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Lymph Node Excision/methods*
		                        			;
		                        		
		                        			Lymph Nodes/pathology*
		                        			;
		                        		
		                        			Pancreatic Neoplasms/pathology*
		                        			;
		                        		
		                        			Neoplasm Staging
		                        			
		                        		
		                        	
2.Effects of laparoscopic hyperthermic intraperitoneal perfusion chemotherapy combined with intraperitoneal and systemic chemotherapy treatment in patients with untreated gastric cancer with peritoneal metastasis.
Shen LI ; Kan XUE ; Hong Mei DAI ; Yin Kui WANG ; Fei SHAN ; Zi Yu LI ; Jia Fu JI
Chinese Journal of Gastrointestinal Surgery 2023;26(5):442-447
		                        		
		                        			
		                        			Objective: To investigate the efficacy of laparoscopic hyperthermic intraperitoneal perfusion chemotherapy combined with intraperitoneal and systemic chemotherapy (HIPEC-IP-IV) in the treatment of peritoneal metastases from gastric cancer (GCPM). Methods: This was a descriptive case series study. Indications for HIPEC-IP-IV treatment include: (1) pathologically confirmed gastric or esophagogastric junction adenocarcinoma; (2) age 20-85 years; (3) peritoneal metastases as the sole form of Stage IV disease, confirmed by computed tomography, laparoscopic exploration, ascites or peritoneal lavage fluid cytology; and (4) Eastern Cooperative Oncology Group performance status 0-1. Contraindications include: (1) routine blood tests, liver and renal function, and electrocardiogram showing no contraindications to chemotherapy; (2) no serious cardiopulmonary dysfunction; and (3) no intestinal obstruction or peritoneal adhesions. According to the above criteria, data of patients with GCPM who had undergone laparoscopic exploration and HIPEC from June 2015 to March 2021 in the Peking University Cancer Hospital Gastrointestinal Center were analyzed, after excluding those who had received antitumor medical or surgical treatment. Two weeks after laparoscopic exploration and HIPEC, the patients received intraperitoneal and systemic chemotherapy. They were evaluated every two to four cycles. Surgery was considered if the treatment was effective, as shown by achieving stable disease or a partial or complete response and negative cytology. The primary outcomes were surgical conversion rate, R0 resection rate, and overall survival. Results: Sixty-nine previously untreated patients with GCPM had undergone HIPEC-IP-IV, including 43 men and 26 women; with a median age of 59 (24-83) years. The median PCI was 10 (1-39). Thirteen patients (18.8%) underwent surgery after HIPEC-IP-IV, R0 being achieved in nine of them (13.0%). The median overall survival (OS) was 16.1 months. The median OS of patients with massive or moderate ascites and little or no ascites were 6.6 and 17.9 months, respectively (P<0.001). The median OS of patients who had undergone R0 surgery, non-R0 surgery, and no surgery were 32.8, 8.0, and 14.9 months, respectively (P=0.007). Conclusions: HIPEC-IP-IV is a feasible treatment protocol for GCPM. Patients with massive or moderate ascites have a poor prognosis. Candidates for surgery should be selected carefully from those in whom treatment has been effective and R0 should be aimed for.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Young Adult
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Stomach Neoplasms/surgery*
		                        			;
		                        		
		                        			Peritoneal Neoplasms/secondary*
		                        			;
		                        		
		                        			Hyperthermic Intraperitoneal Chemotherapy
		                        			;
		                        		
		                        			Percutaneous Coronary Intervention
		                        			;
		                        		
		                        			Hyperthermia, Induced/methods*
		                        			;
		                        		
		                        			Combined Modality Therapy
		                        			;
		                        		
		                        			Laparoscopy/methods*
		                        			;
		                        		
		                        			Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
		                        			;
		                        		
		                        			Perfusion
		                        			;
		                        		
		                        			Cytoreduction Surgical Procedures
		                        			;
		                        		
		                        			Survival Rate
		                        			
		                        		
		                        	
4.The Retrospective Diagnostic Potential of GeneXpert MTB/RIF for the Analysis of Formalin-Fixed Paraffin-Embedded Tissue from Extrapulmonary Tuberculosis Patients.
Qing Jun JIA ; Mei Chun ZENG ; Qing Lin CHENG ; Yin Yan HUANG ; Yi Fei WU ; Qing Chun LI ; Le WANG ; Li Yun AI ; Zi Jian FANG ; Shi CHENG ; Li Ping SHU
Biomedical and Environmental Sciences 2023;36(3):295-298
5.Specific DNA barcodes, germplasm resources, and genetic diversity of Eleutherococcus senticosus.
Zhi-Fei ZHANG ; Zhong-Zhen ZHAO ; Xin WANG ; Guang-Yao YIN ; Ying CHEN ; Jin-Hui MAN ; Yue SHI ; Yu-Ying HUANG ; Shan-Hu LIU ; Zi-Qi LIU ; Xiao-Hui WANG ; Sheng-Li WEI
China Journal of Chinese Materia Medica 2023;48(5):1229-1237
		                        		
		                        			
		                        			Eleutherococcus senticosus is one of the Dao-di herbs in northeast China. In this study, the chloroplast genomes of three E. senticosus samples from different genuine producing areas were sequenced and then used for the screening of specific DNA barcodes. The germplasm resources and genetic diversity of E. senticosus were analyzed basing on the specific DNA barcodes. The chloroplast genomes of E. senticosus from different genuine producing areas showed the total length of 156 779-156 781 bp and a typical tetrad structure. Each of the chloroplast genomes carried 132 genes, including 87 protein-coding genes, 37 tRNAs, and 8 rRNAs. The chloroplast genomes were relatively conserved. Sequence analysis of the three chloroplast genomes indicated that atpI, ndhA, ycf1, atpB-rbcL, ndhF-rpl32, petA-psbJ, psbM-psbD, and rps16-psbK can be used as specific DNA barcodes of E. senticosus. In this study, we selected atpI and atpB-rbcL which were 700-800 bp and easy to be amplified for the identification of 184 E. senticosus samples from 13 genuine producing areas. The results demonstrated that 9 and 10 genotypes were identified based on atpI and atpB-rbcL sequences, respectively. Furthermore, the two barcodes identified 23 genotypes which were named H1-H23. The haplotype with the highest proportion and widest distribution was H10, followed by H2. The haplotype diversity and nucleotide diversity were 0.94 and 1.82×10~(-3), respectively, suggesting the high genetic diversity of E. senticosus. The results of the median-joining network analysis showed that the 23 genotypes could be classified into 4 categories. H2 was the oldest haplotype, and it served as the center of the network characterized by starlike radiation, which suggested that population expansion of E. senticosus occurred in the genuine producing areas. This study lays a foundation for the research on the genetic quality and chloroplast genetic engineering of E. senticosus and further research on the genetic mechanism of its population, providing new ideas for studying the genetic evolution of E. senticosus.
		                        		
		                        		
		                        		
		                        			DNA Barcoding, Taxonomic
		                        			;
		                        		
		                        			Eleutherococcus/genetics*
		                        			;
		                        		
		                        			Base Sequence
		                        			;
		                        		
		                        			Chloroplasts/genetics*
		                        			;
		                        		
		                        			Genetic Variation
		                        			;
		                        		
		                        			Phylogeny
		                        			
		                        		
		                        	
6.Jiedu Recipe, a compound Chinese herbal medicine, inhibits cancer stemness in hepatocellular carcinoma via Wnt/β-catenin pathway under hypoxia.
Bing-Jie GUO ; Yi RUAN ; Ya-Jing WANG ; Chu-Lan XIAO ; Zhi-Peng ZHONG ; Bin-Bin CHENG ; Juan DU ; Bai LI ; Wei GU ; Zi-Fei YIN
Journal of Integrative Medicine 2023;21(5):474-486
		                        		
		                        			OBJECTIVE:
		                        			Jiedu Recipe (JR), a Chinese herbal remedy, has been shown to prolong overall survival time and decrease recurrence and metastasis rates in patients with hepatocellular carcinoma (HCC). This work investigated the mechanism of JR in HCC treatment.
		                        		
		                        			METHODS:
		                        			The chemical constituents of JR were detected using liquid chromatography-mass spectrometry. The potential anti-HCC mechanism of JR was screened using network pharmacology and messenger ribonucleic acid (mRNA) microarray chip assay, followed by experimental validation in human HCC cells (SMMC-7721 and Huh7) in vitro and a nude mouse subcutaneous transplantation model of HCC in vivo. HCC cell characteristics of proliferation, migration and invasion under hypoxic setting were investigated using thiazolyl blue tetrazolium bromide, wound healing and Transwell assays, respectively. Image-iT™ Hypoxia Reagent was added to reveal hypoxic conditions. Stem cell sphere formation assay was used to detect the stemness. Epithelial-mesenchymal transition (EMT) markers like E-cadherin, vimentin and α-smooth muscle actin, and pluripotent transcription factors including nanog homeobox, octamer-binding transcription factor 4, and sex-determining region Y box protein 2 were analyzed using Western blotting and real-time polymerase chain reaction. Western blot was performed to ascertain the anti-HCC effect of JR under hypoxia involving the Wnt/β-catenin pathway.
		                        		
		                        			RESULTS:
		                        			According to network pharmacology and mRNA microarray chip analysis, JR may potentially act on hypoxia and inhibit the Wnt/β-catenin pathway. In vitro and in vivo experiments showed that JR significantly decreased hypoxia, and suppressed HCC cell features of proliferation, migration and invasion; furthermore, the hypoxia-induced increases in EMT and stemness marker expression in HCC cells were inhibited by JR. Results based on the co-administration of JR and an agonist (LiCl) or inhibitor (IWR-1-endo) verified that JR suppressed HCC cancer stem-like properties under hypoxia by blocking the Wnt/β-catenin pathway.
		                        		
		                        			CONCLUSION
		                        			JR exerts potent anti-HCC effects by inhibiting cancer stemness via abating the Wnt/β-catenin pathway under hypoxic conditions. Please cite this article as: Guo BJ, Ruan Y, Wang YJ, Xiao CL, Zhong ZP, Cheng BB, Du J, Li B, Gu W, Yin ZF. Jiedu Recipe, a compound Chinese herbal medicine, inhibits cancer stemness in hepatocellular carcinoma via Wnt/β-catenin pathway under hypoxia. J Integr Med. 2023; 21(5): 474-486.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Carcinoma, Hepatocellular/genetics*
		                        			;
		                        		
		                        			beta Catenin/pharmacology*
		                        			;
		                        		
		                        			Liver Neoplasms/genetics*
		                        			;
		                        		
		                        			Drugs, Chinese Herbal/therapeutic use*
		                        			;
		                        		
		                        			RNA, Messenger/therapeutic use*
		                        			;
		                        		
		                        			Cell Line, Tumor
		                        			;
		                        		
		                        			Cell Proliferation
		                        			;
		                        		
		                        			Cell Movement
		                        			;
		                        		
		                        			Gene Expression Regulation, Neoplastic
		                        			
		                        		
		                        	
7.Physical exercise suppresses hepatocellular carcinoma progression by alleviating hypoxia and attenuating cancer stemness through the Akt/GSK-3β/β-catenin pathway.
Chu-Lan XIAO ; Zhi-Peng ZHONG ; Can LÜ ; Bing-Jie GUO ; Jiao-Jiao CHEN ; Tong ZHAO ; Zi-Fei YIN ; Bai LI
Journal of Integrative Medicine 2023;21(2):184-193
		                        		
		                        			OBJECTIVE:
		                        			Physical exercise, a common non-drug intervention, is an important strategy in cancer treatment, including hepatocellular carcinoma (HCC). However, the mechanism remains largely unknown. Due to the importance of hypoxia and cancer stemness in the development of HCC, the present study investigated whether the anti-HCC effect of physical exercise is related to its suppression on hypoxia and cancer stemness.
		                        		
		                        			METHODS:
		                        			A physical exercise intervention of swimming (30 min/d, 5 d/week, for 4 weeks) was administered to BALB/c nude mice bearing subcutaneous human HCC tumor. The anti-HCC effect of swimming was assessed in vivo by tumor weight monitoring, hematoxylin and eosin (HE) staining, and immunohistochemistry (IHC) detection of proliferating cell nuclear antigen (PCNA) and Ki67. The expression of stemness transcription factors, including Nanog homeobox (NANOG), octamer-binding transcription factor 4 (OCT-4), v-Myc avian myelocytomatosis viral oncogene homolog (C-MYC) and hypoxia-inducible factor-1α (HIF-1α), was detected using real-time reverse transcription polymerase chain reaction. A hypoxia probe was used to explore the intratumoral hypoxia status. Western blot was used to detect the expression of HIF-1α and proteins related to protein kinase B (Akt)/glycogen synthase kinase-3β (GSK-3β)/β-catenin signaling pathway. The IHC analysis of platelet endothelial cell adhesion molecule-1 (CD31), and the immunofluorescence co-location of CD31 and desmin were used to analyze tumor blood perfusion. SMMC-7721 cells were treated with nude mice serum. The inhibition effect on cancer stemness in vitro was detected using suspension sphere experiments and the expression of stemness transcription factors. The hypoxia status was inferred by measuring the protein and mRNA levels of HIF-1α. Further, the expression of proteins related to Akt/GSK-3β/β-catenin signaling pathway was detected.
		                        		
		                        			RESULTS:
		                        			Swimming significantly reduced the body weight and tumor weight in nude mice bearing HCC tumor. HE staining and IHC results showed a lower necrotic area ratio as well as fewer PCNA or Ki67 positive cells in mice receiving the swimming intervention. Swimming potently alleviated the intratumoral hypoxia, attenuated the cancer stemness, and inhibited the Akt/GSK-3β/β-catenin signaling pathway. Additionally, the desmin+/CD31+ ratio, rather than the number of CD31+ vessels, was significantly increased in swimming-treated mice. In vitro experiments showed that treating cells with the serum from the swimming intervention mice significantly reduced the formation of SMMC-7721 cell suspension sphere, as well as the mRNA expression level of stemness transcription factors. Consistent with the in vivo results, HIF-1α and Akt/GSK-3β/β-catenin signaling pathway were also inhibited in cells treated with serum from swimming group.
		                        		
		                        			CONCLUSION
		                        			Swimming alleviated hypoxia and attenuated cancer stemness in HCC, through suppression of the Akt/GSK-3β/β-catenin signaling pathway. The alleviation of intratumoral hypoxia was related to the increase in blood perfusion in the tumor. Please cite this article as: Xiao CL, Zhong ZP, Lü C, Guo BJ, Chen JJ, Zhao T, Yin ZF, Li B. Physical exercise suppresses hepatocellular carcinoma progression by alleviating hypoxia and attenuating cancer stemness through the Akt/GSK-3β/β-catenin pathway. J Integr Med. 2023; 21(2): 184-193.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Carcinoma, Hepatocellular/drug therapy*
		                        			;
		                        		
		                        			Proto-Oncogene Proteins c-akt/metabolism*
		                        			;
		                        		
		                        			Proliferating Cell Nuclear Antigen/therapeutic use*
		                        			;
		                        		
		                        			Mice, Nude
		                        			;
		                        		
		                        			Glycogen Synthase Kinase 3 beta/genetics*
		                        			;
		                        		
		                        			beta Catenin/therapeutic use*
		                        			;
		                        		
		                        			Liver Neoplasms/drug therapy*
		                        			;
		                        		
		                        			Desmin/therapeutic use*
		                        			;
		                        		
		                        			Ki-67 Antigen
		                        			;
		                        		
		                        			Cell Line, Tumor
		                        			;
		                        		
		                        			Hypoxia
		                        			;
		                        		
		                        			RNA, Messenger/therapeutic use*
		                        			;
		                        		
		                        			Cell Proliferation
		                        			
		                        		
		                        	
8.Cooling Kinetic Characteristics of Temperature Difference between Cadaver Temperature and Ambient Temperature.
Xiao-Fei DUAN ; Zi-Long GUO ; Zhen YAO ; Yin-di LIU ; Hai HU ; Zhou-Yang HU
Journal of Forensic Medicine 2022;38(5):579-583
		                        		
		                        			OBJECTIVES:
		                        			To study the cooling reaction kinetic characteristics of the temperature difference between cadaver temperature and ambient temperature (hereinafter referred to as "cadaver temperature difference") according to the reaction kinetics method.
		                        		
		                        			METHODS:
		                        			Thirty rabbits were randomly divided into 5 groups with 6 rabbits in each group. The rabbits were injected with 10% potassium chloride solution intravenously. After death, the rabbits were placed at 5 ℃, 10 ℃, 15 ℃, 20 ℃ and 25 ℃ environment condition, respectively, and the rectal temperature was measured every minute for 20 hours. The measured cadaver temperature was subtracted from ambient temperature, and the cadaver temperature difference data was calculated using the reaction kinetics formula. The linear regression equation was fitted for analysis, and the experimental results were applied to the temperature difference data of human body after death for verification.
		                        		
		                        			RESULTS:
		                        			Under different environmental conditions, the linear coefficient determination of temperature difference -ln(C/C0) in rabbits was 0.99, showing a good linear relationship with time t. The application of human body temperature data after death was consistent with the results of animal experiments.
		                        		
		                        			CONCLUSIONS
		                        			Under stable conditions, the temperature difference cooling process after death in rabbits is a first-order kinetic response. The method can also be used to study the temperature difference in human body after death.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Rabbits
		                        			;
		                        		
		                        			Body Temperature
		                        			;
		                        		
		                        			Temperature
		                        			;
		                        		
		                        			Kinetics
		                        			;
		                        		
		                        			Cadaver
		                        			
		                        		
		                        	
9.The impact of different comprehensive treatment models on patients with adenocarcinoma of esophagogastric junction based on propensity score matching: a single center cohort study.
Hong Mei DAI ; Yin Kui WANG ; Xiang Ji YING ; Shuang Xi LI ; Fei SHAN ; Yong Ning JIA ; Kan XUE ; Ru Lin MIAO ; Zhe Min LI ; Zi Yu LI ; Jia Fu JI
Chinese Journal of Surgery 2022;60(9):846-852
		                        		
		                        			
		                        			Objective: To compare the prognostic influence and postoperative pathology of different comprehensive treatment models for adenocarcinoma of esophagogastric junction. Methods: Between January 2012 and December 2017, a total of 219 patients with adenocarcinoma of esophagogastric junction underwent surgery in Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute and were enrolled in this study. The clinicopathological data of these patients were collected. The patients were categorized into 3 groups according to different treatment models: surgery-first group, neoadjuvant chemotherapy (NAC) group and neoadjuvant chemoradiotherapy (nCRT) group. A trimatch propensity score analysis was applied to control potential confounders among the three groups by using R language software. A total of 7 covariates including gender, age, comorbidity, body mass index, clinical T stage, clinical N stage and Siewert type were included, and the caliper value was taken as 0.2. After matching, a total of 87 patients were included for analysis with 27 patients for each group. There were 82 males and 5 females, with a median age of 63 years (range: 38 to 76 years). The effect of preoperative treatment on postoperative tumor pathology among the three different comprehensive treatment models was explored by χ2 test, ANOVA or Wilcoxon rank sum test. Mann-Whitney U test or χ2 test were used to undergo pairwise comparisons. Kaplan-Meier method and Log-rank test were used to analyze the overall survival and progression-free survival. Results: The proportion of vascular embolism in the surgery-first group was 72.4% (21/29), which was significantly higher than NAC group (37.9% (11/29), χ2=6.971, P=0.008) and nCRT group (6.9% (2/29), χ2=26.696, P<0.01). The proportions of pathological T3-4 stage in nCRT group and NAC group were 55.2% (16/29) and 62.1% (18/29), respectively, which were significantly lower than the surgery-first group (93.1% (27/29), χ2=10.881, P=0.001; χ2=8.031, P=0.005). Compared with the NAC group (55.2% (16/29), χ2=6.740, P=0.009) and nCRT group (31.0% (9/29), χ2=18.196, P<0.01), the proportion of lymph node positivity 86.2% (25/29) were significantly higher in the surgery-first group. The 5-year overall survival rates were 62.1%, 68.6% and 41.4% for the surgery-first group, NAC group and nCRT group, respectively (χ2=4.976, P=0.083). The 5-year progression-free survival rates were 61.7%, 65.1% and 41.1% for the surgery-first group, NAC group and nCRT group, respectively. The differences in overall survival (χ2=4.976, P=0.083) and progression-free survival (χ2=4.332, P=0.115) among the three groups were nonsignificant. Conclusions: Postoperative pathology is significantly different among the three groups. Neoadjuvant chemotherapy and neoadjuvant chemoradiotherapy could decrease the proportions of vascular embolism, pathological T3-4 stage and lymph node positivity to achieve local tumor control. The prognosis of overall survival and progression-free survival are not significantly different among the three groups.
		                        		
		                        		
		                        		
		                        			Adenocarcinoma/pathology*
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Cohort Studies
		                        			;
		                        		
		                        			Esophagogastric Junction/pathology*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Neoadjuvant Therapy
		                        			;
		                        		
		                        			Propensity Score
		                        			
		                        		
		                        	
10.Comparison of distal pancreatectomy with celiac axis resection and sub-adventitial divestment technique for locally advanced or borderline resectable pancreatic body cancer.
Xu Min HUANG ; Jie YIN ; Zi Peng LU ; Jian Min CHEN ; Bao Bao CAI ; Peng Fei WU ; Kui Rong JIANG ; Yi MIAO
Chinese Journal of Surgery 2022;60(5):441-448
		                        		
		                        			
		                        			Objective: To compare the outcomes of modified Appleby procedure and sub-adventitial divestment technique for locally advanced or borderline resectable pancreatic body cancer. Methods: A total of consecutive 58 patients(33 males and 25 females) who were diagnosed as locally advanced or borderline resectable pancreatic body cancer and underwent distal pancreatectomy at Pancreas Center, First Affiliated Hospital of Nanjing Medical University between September 2013 and May 2019 were retrospectively reviewed. The age(M(IQR)) was 62(9)years(range: 43 to 79 years). Thirty-one patients underwent distal pancreatectomy with celiac axis resection (DP-CAR) and 27 patients underwent distal pancreatectomy with sub-adventitial divestment technique(SDT). Perioperative parameters and follow-up data of these patients were analyzed. Quantitative data were compared with Wilcoxon test while categorical variables were compared with χ2 test or Fisher's exact test. Survival results were estimated by the Kaplan-Meier survival method with a Log-rank test. Results: There were no differences in age,gender,body mass index,abdominal symptoms,comorbidity or preoperative serum CA19-9 between two groups(all P>0.05). Obvious preoperative weight loss was more common in the group of SDT(48.1%(13/27) vs. 19.4%(6/31),χ²=5.431,P=0.020). Longer operative time(310(123) minutes vs. 254(137)minutes, Z=2.277,P=0.023),higher rate of combined organ resection(41.9%(13/31) vs. 14.8%(4/27),χ²=5.123,P=0.041) and longer postoperative hospital stay(15(10) days vs. 11(5)days,Z=2.292,P=0.022) were observed in the group of DP-CAR. Moreover,rate of overall morbidities was also higher (71.0%(22/31) vs. 29.6%(8/27),χ2=9.876,P=0.003),implicated by clinically relevant postoperative pancreatic fistula(61.3%(19/31) vs. 29.6%(8/27),χ2=5.814,P=0.020) in the DP-CAR group. Tumor size of the DP-CAR group was bigger(4.9(1.5)cm vs. 4.0(1.2)cm,Z=2.343,P=0.019) but no difference was seen between the DP-CAR group and SDT group in R0+R1(<1 mm) resection rate (84.0%(21/25) vs. 90.0%(18/20),P=0.678) and LNR(12.0(23.0)% vs. 9.0(18.0)%,Z=1.238,P=0.216),as well as median disease free survival(11.7 months vs. 11.4 months,Z=0.019,P=0.892) and median overall survival(16.3 months vs. 13.7 months,Z=0.172,P=0.679). Conclusions: Both DP-CAR and distal pancreatectomy with SDT are relatively safe and feasible for locally advanced or borderline resectable pancreatic body cancer. Compared with arterial resection,SDT may contribute to lower rates of postoperative complications and shorter duration of hospitalization,but no significant benefit is seen in long-term survival.
		                        		
		                        		
		                        		
		                        			Celiac Artery/surgery*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Pancreatectomy/methods*
		                        			;
		                        		
		                        			Pancreatic Neoplasms/pathology*
		                        			;
		                        		
		                        			Postoperative Complications
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
            
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