Treating tumors with electric field is an interdisciplinary integrated and comprehensive research which applies electro-technology to tumor treatment.This therapy has the characteristics of safe,practical to its users and the parameters are easily to be controlled,which has attracted considerable attention in recent years.The main types of electric field in current research or application are pulsed electric field and direct current electric field.Both of the types can change the environment where tumors grow with different mechanisms,and the tumors would be killed through their pathological changes.Alternating electric field in intermediate frequency is a new type of tumor treating field,which has a promising application prospect.This article reviews the international and domestic research progress of the effects and mechanisms of the three kinds of electric fields used in the treatment of tumors.

Objective:To compare liver adhesive suspension method and V-shaped liver suspension of anterior abdominal wall in laparoscopic radical gastrectomy.Methods:This study retrospectively evaluated 115 patients who underwent laparoscopic radical gastrectomy from Jan 2018 to Dec 2019 at Shanxi Provincial People′s Hospital, 59 cases were under liver adhesive suspension (study group) and 56 cases under V-shaped liver suspension of anterior abdominal wall (control group). Intraoperative and postoperative conditions were observed and compared between the two groups.Results:All the 115 cases successfully completed surgery. The liver suspension time in study group was (2.4±0.5)min, which was significantly shorter than that of the control group((12.5±2.6) min)( t=-28.100, P<0.01). The total operation time in was (284±69) min and (307±78) min, respectively, ( t=-1.656, P=0.10). There were no statistically significant differences between the two groups in preoperative ALT, AST, total bilirubin, intraoperative incidence of hepatic lacerations and subcapsular hematoma, postoperative total bilirubin level, AST on the day 7 postoperatively, tumor location, TNM staging, surgical method, postoperative duration of hospital stay, and VAS score ( P>0.05). Conclusions:Both methods of liver suspension are safe and feasible in laparoscopic surgery for gastric cancer.Compared with V-shaped liver suspension of anterior abdominal wall, liver adhesive suspension has the advantages of less invasive, safe, and time-saving.

Objective To observe the effects of happy family cognitive training on patients with vascular cognitive impairment. Meth-ods From April, 2015 to April, 2016, 80 patients with vascular cognitive impairment were divided randomly into happy family cognitive training group (n=40) and control group (n=40). Both groups accepted routine medicine and rehabilitation exercise, while the happy family cognitive training group received happy family cognitive training additionally. They were assessed with Montreal Cognitive Assessment (MoCA) and Activities of Daily Living (ADL) before and after 12 weeks of treatment. Results The scores of MoCA and ADL improved more in the family cognitive training group than in the control group after treatment (t>5.454, P<0.001). Conclusion Happy family cogni-tive training is effective on vascular cognitive impairment, for cognitive function and activities of daily living.

Objective To investigate the prevalence of depression among the patients with diabetic foot and analyze the influence factors. Methods One hundred and ten patients with diabetic foot were inquired and assessed with patient health questionnaire for self-administered measurement (PHQ-9), meanwhile, the demo-graphic data, metabolic data and diabetes behaviors were also investigated. Results Prevalence of depression was 47.3%. Logistic regression analysis showed that alternation of diarrhea and astriction (OR = 6.901, P =0.017) and formication (OR = 23.401, P = 0.009) were risk factors, and medical insurance (OR = 0.217, P =0.007) was a protective factor. Conclusions Depression is a frequent mental disorder in patients with diabet-ic foot and its influence factors include alternation of diarrhea and astriction , formication and medical insur-ance .

Objective To investigate the action and skills of camera-assisted laparoscopic rectal cancer radical surgery.Methods From January 2009 to May 2015,a total of 577 cases with rectal cancer underwent laparoscopic rectal cancer radical surgery,including 152 cases of abdominal perineal resection,and 425 cases of abdominal resection.The skills of camera-assisted operation were summarized.Results All the operations were successfully completed without serious complications.Conclusions Regarding for skills of camera assistant,mastering the clinical topography of rectum,understanding the operational habit of operator,understanding operating procedure and operation characteristics are the necessary condition to complete laparoscopic rectal cancer radical surgery.

Objective: To study the effects of IL-2 and IL-15 on the expression of NKG2D and the cytotoxicity of edited-NK cells against human nasopharyngeal carcinoma cell line CNE2.Methods: NK cells were purified by anti-CD56 MACS and were divided into four groups: non-edited-NK cells group(NK cells treated with 100 U/ml IL-2),edited-NK cells group(NK cells co-cultured with CNE2 cells at a ratio of 10∶1 and then treated with 100 U/ml IL-2),edited-NK cells retreated with 1 000 U/ml IL-2 group,and edited-NK cells retreated with 10 ng/ml IL-15 group.Expression of NKG2D in each group was determined by FACS 24 h later.Cytotoxicity of NK cells against CNE2 cells(NK∶CNE2 being 20∶1) was measured by LDH releasing assay.Results: The expression of NKG2D in non-edited-NK cells,edited-NK cells,edited-NK cells retreated with IL-2,and edited-NK cells retreated with IL-15 were(97.63?0.83)%,(53.50?1.25)%,(94.47?1.00)%,and(98.07?0.21)%,respectively.The expression of NKG2D on edited-NK cells retreated with IL-2 or IL-15 was significantly increased than that on edited-NK cells(P

Objective To investigate the expression of DNA binding protein A (dbpA) in patients with colorectal carcinoma of different stages and its significance.Methods Expression of dbpA protein and mRNA in specimens of normal tissues and colorectal cancer were detected by immunohistochemistry,expression of dbpA mRNA and protein of colorectal cancer cell lines SW480,RKO,SW620,DLD-1,HT-29,SW1463 and tissues were detected by immunohistochemistry,RT-PCR and Western blot.Results There was no positive staining dbpA protein and mRNA in normal colorectal tissues.However,dbpA was expressed in epithelial cells of colorectal mucosa [dbpA mRNA:80.0 ％ (48/60),10.0 ％ (6/60);dbpA protein:83.3 ％ (50/60),10.0 ％ (6/60),P ＜ 0.01].And there was no expression in normal colorectal cell,but its expression was high in 6 colorectal cancer cells (P ＜ 0.05).The high expression of dbpA was correlation with the infiltration depth,lymph node metastasis and type of histology (P ＜ 0.05),and had effect in prognosis of colorectal cancer (P ＜ 0.05).Conclusion Elevated dbpA may be related to the pathogenesis and development of colorectal carcinoma,and dbpA may be a prognostic factor of colorectal carcinoma.

Objective To investigate lymph node metastases in distal gastric cancer and its clinical significance. Methods From June 2006 to December 2007, 129 distal gastric cancer patients underwent radical gastrectomy with lymphadenectomy. Dissected lymph nodes were collected in groups, and histopathological studies were performed to detect lymph node metastasis. The relationship between lymph node metastasis and tumor parameters such as diameter, location, infiltrating depth, histological category,Borrmann typing was evaluated. Results Lymph node metastases was found in 80 out of 129 patients (62%). A total of 3295 lymph nodes were harvested with an average of 25.54 lymph nodes per patient,among those 889 lymph nodes were identified with metastasis. The metastasis rate was 18.60%, 48. 84%,37. 98%, 38. 76%, 44. 19%, 31.01%, 10. 85%, 14. 73%, 4. 65%, 1.55% and 0. 78% respectively in No. 1, No. 3, No. 4d, No. 5, No. 6, No. 7, No. 8a, No. 9, No. 11 p, No. 12a, No. 14v lymph node group.No. 3 and No. 6 group nodes were moat frequently invaded by metastasis. Conclusion This study provides the regular pattern of lymph node metastasis in distal gastric carcinoma patients undergoing radical gastrectomy and perigastric lymphadectomy which helps to guide lymphadectomy in terms of less trauma and favorite prognosis.

Objective: To investigate the prevalence, awareness, treatment and control rates of diabetes among residents in Fangshan District, Bejing Municipality, so as to provide reference for strengthening the prevention and control of diabetes. Methods: The residents aged 18 to 79 years were selected in Fangshan District using multistage stratified cluster sampling method from March to June 2023. Demographic information, lifestyle, body mass index, fasting blood glucose, and blood lipid were collected through questionnaire surveys, physical examinations and laboratory tests. The prevalence, awareness, treatment and control rates of diabetes among residents were analyzed and their influencing factors were identified using a multivariable logistic regression model. Results: A total of 4 438 residents were enrolled, including 2 367 males (53.33%) and 2 071 females (46.67%), and had a mean age of (44.99±14.90) years. The prevalence, awareness, treatment and control rates of diabetes were 15.75%, 57.37%, 56.22% and 22.90%, respectively. Multivariable logistic regression analysis showed that age (aged 30 to 39 years, OR=1.624, 95%CI: 1.011-2.609; aged 40 to 49 years, OR=3.469, 95%CI: 2.163-5.561; aged 50 to 59 years, OR=4.202, 95%CI: 2.595-6.803; aged 60 to 69 years, OR=7.229, 95%CI: 4.406-11.862; aged 70 to 79 years, OR=7.929, 95%CI: 4.665-13.479), obesity (OR=1.368, 95%CI: 1.071-1.748), hypertension (OR=1.943, 95%CI: 1.601-2.359) and dyslipidemia (OR=2.754, 95%CI: 2.287-3.317) were the factors affecting the prevalence of diabetes. Sex (women, OR=1.529, 95%CI: 1.019-2.293), age (aged 40 to 49 years, OR=4.971, 95%CI: 1.681-14.698; aged 50 to 59 years, OR=6.070, 95%CI: 2.045-18.020; aged 60 to 69 years, OR=6.902, 95%CI: 2.287-20.832; aged 70 to 79 years, OR=6.954, 95%CI: 2.191-22.070) and hypertension (OR=1.906, 95%CI: 1.337-2.718) were the factors affecting the awareness of diabetes. Age (aged 40 to 49 years, OR=4.699, 95%CI: 1.594-13.855; aged 50 to 59 years, OR=5.990, 95%CI: 2.023-17.732; aged 60 to 69 years, OR=7.134, 95%CI: 2.370-21.470; aged 70 to 79 years, OR=6.639, 95%CI: 2.102-20.964) and hypertension (OR=1.857, 95%CI: 1.304-2.645) were the factors affecting the treatment of diabetes. Age (aged 40 to 49 years, OR=2.948, 95%CI: 1.349-6.438; aged 60 to 69 years, OR=2.344, 95%CI: 1.049-5.234) was the factor affecting the control of diabetes. Conclusions The prevalence rate of diabetes among residents in Fangshan District was high, and the improvements of awareness rate, treatment rate and control rate were not obvious. Health education and management of diabetes should be strengthened for elderly, hypertensive and dyslipidemic residents.

Cinnamomum migao plants often face different degrees of drought in karst habitats, which can lead to plants’ death, especially in the seedling stage. Widespread of arbuscular mycorrhizal (AM) fungi in karst soils have the potential to address this drought, which is a threat to C. migao seedlings. We inoculated C. migao seedlings with spores from Glomus lamellosum and Glomus etunicatum, two AM fungi widely distributed in karst soils, to observe seedling growth response after simulated drought. Our results showed that 40 g of G. lamellosum and G. etunicatum significantly promoted the growth of C. migao seedlings, 120 days after inoculation. Following a 15-day drought treatment, root colonization of the seedlings with G. lamellosum or G. etunicatum had lower the accumulation of malondialdehyde (MDA) and increased the accumulation of enzymes and osmotic substances in the seedlings. The relative water content in different organs (roots, stems, and leaves) of the drought-stressed seedlings was higher in plants with G. lamellosum or G. etunicatum than in plants without AM fungi colonization. Our results showed that inoculation with AM fungi was an effective means to improve the drought resistance of C. migao seedlings.