Objective To understand the mental health status of officers and soldiers (OSs) in a Chinese army unit,and analyze its relationship with Helicobacter pylori (H.pylori) infection.Methods Cross sectional extraction of 1293 male soldiers from a certain unit of Chinese army in September 2015,aged 17-37 years old,average age 20.5 ± 3.2.Using the symptom self rating scale (SCL-90) to conduct a psychological evaluation,comparison between the evaluation results and the Chinese military norm was conducted to understand the mental health status of OSs in the unit.13C-urea breath test was used to detect H.pylori infection,and the relationship between the positivity rate of various factors,the SCL-90 score and H.pylori infection were analyzed.Ninety OSs who had desire to eradicate H.pylori serves as the experimental group,and 90 H.pylori-infected OSs as control group.The experimental group received quadruple-drug eradication therapy,control group received no drug treatment.SCL-90 scores before and after the treatment were compared,and SCL-90 scores after treatment in the experimental group and those in the control group were also compared for analyzing the relationship between the OSs psychological status and H.pylori infection.Results The SCL-90 score of the OSs was lower than the norm of Chinese army,and the difference was statistically significant (P＜0.05).The psychological screening positive rate was higher in H.pylori-positive OSs than H.pylori-negative those and the positive rates of psychological screening factors somatization,interpersonal sensitivity,hostility and paranoid were higher in H.pylori-positive OSs than in H.Pylorinegative those,and the difference was statistically significant (P＜0.05).After the eradication of H.pylori in the experimental group these factor scores were lower than those before eradication.Compared with control group SCL-90 scores,soldiers somatization,interpersonal sensitivity,anxiety,hostility,paranoid factor score in experimental group after treatment were lower,the differences were statistically significant (P＜0.05).Conclusion The mental health is better in OSs in this unit,the negative mental status is obvious in H.pylori-infected OSs than in H.pylori-negative those,and to eradicate H.pylori can improve their psychological state.

OBJECTIVETo investigate the migrating effect of adipose derived stem cells (ADSCs) on the wound model of human epidermal keratinocyte (HEKa).

METHODSRat ADSCs (rADSCs) were isolated and cultured (n = 10), rADSCs were direct co-cultured with HEKa cells in experiment group (experimental group, n = 10). In the control groups, rADSCs were indirect co-cultured with HEKa cells in transwell chamber (indirect group, n = 8), or HEKa was cultured alone (single group, n = 8). Then confluent HEKa cells were scraped to establish a wound model under invert microscope. After scraped 24, 48, and 72 h, cell numbers of which migrated across the edge of the wound was measured, the rate of wound healing was calculated by using SigmaScan Pro 5 software, and the proliferating effect of rADSCs on HEKa were examined by incorporation of [(3)H] thymidine.

RESULTSThe cells migrated across the edge of wound after 24 hours in experimental group, indirect group, and single group were (9.2 + or - 0.2), (5.0 + or - 0.3), (4.2 + or - 0.3), and were (58.5 + or - 0.4), (26.5 + or - 0.3), (20.7 + or - 0.5) 48 hours after, and were (125.8 + or - 0.4), (43.0 + or - 0.5), (35.6 + or - 0.5) cells/HP 72 hours after, respectively; the numbers were all significantly higher in experimental group than those in control groups (P < 0.05). The rates of wound healing after scraped 72 hours were 61.0% + or - 3.0%, 35.0% + or - 2.5% and 32.0 + or - 2.1%, the outcome in experimental group was significantly better than in the control groups (P < 0.05). And the thymidine feeding displayed the proliferation of HEKa in the three groups were (1440 + or - 210), (1050 + or - 280) and (1130 + or - 390) cpm/10(5) cell, and there was significant difference between the experimental and the control groups (P < 0.05).

CONCLUSIONSThe rADSCs can promote the migration of HEKa by direct contact with it.

Adipose Tissue ; cytology ; Animals ; Cell Count ; Cell Proliferation ; Cells, Cultured ; Coculture Techniques ; Epidermis ; cytology ; Humans ; Keratinocytes ; cytology ; Rats ; Rats, Sprague-Dawley ; Stem Cells ; cytology ; Wound Healing

Adult ; Female ; Follow-Up Studies ; Humans ; Male ; Minimally Invasive Surgical Procedures ; methods ; Recovery of Function ; Tibial Fractures ; pathology ; physiopathology ; surgery ; Young Adult

The effect of dietary intervention on intestinal flora and health has become a research focus in the medi-cal and health field. In terms of development, intestinal flora may become an important target for the study of the influence of dietary styl, health food and traditional Chinese medicine on human health. However, due to the complexity of intestinal flora,high standard for animal models that is applied to researches on the relationship between intestinal flora and dietary in?terference is required. It has been claimed that there is no living microorganisms and parasites inside germ?free animals, thus they are the most widely used basic animal models in the study of intestinal flora. Therefore, it is a common way to ap?ply germ?free animal for generating human flora animal model to study the relationship between diet, flora and health. In this paper we will review the researches and applications of human source flora animal models established by germ?free ani?mals and the influence of dietary intervention on gut microbiota.

Objective:To analyze the clinical characteristics of patients with inflammatory bowel disease (IBD) complicated with intra- and extra-intestinal tumors, and so as to provide reference for clinical practice.Methods:From October 2008 to March 2022, the clinical data of 2 360 IBD patients diagnosed at the First Affiliated Hospital of Air Force Military Medical University were collected, and the IBD patients complicated with intra- and extra-intestinal tumors were screened out. IBD with colorectal cancer, small intestine cancer and intestinal lymphoma were enrolled into intra-intestinal tumor group, IBD complicated with other tumors except intra-intestinal tumors were enrolled into extra-intestinal tumor group. The clinical characteristics of the 2 groups were retrospectively compared, and the risk factors affecting survival of IBD complicated intra- and extra-intestinal tumor were analyzed. Kaplan-Meier method was used to draw the survival curve, Cox regression model was performed to analyze the prognostic risk factors, and independent sample t test, Fisher′s exact test and log-rank test were used for statistical analysis. Results:A total of 43 IBD patients with intra- and extra-intestinal tumor were screened out, and the overall tumor incidence rate was 1.82% (43/2 360). The rate of IBD complicated with intra-intestinal tumor accounted for 1.27% (30/2 360). Among them, the rate of ulcerative colitis (UC) complicated with intra-intestinal tumor was 1.48% (25/1 685), and the rate of Crohn′s disease (CD) complicated with intra-intestinal tumor was 0.74% (5/675). The rate of IBD with extra-intestinal tumor accounted for 0.55% (13/2 360). Among them, the rate of UC complicated with extra-intestinal tumor was 0.71% (12/1 685), and the rate of CD complicated with extra-intestinal tumor was 0.15% (1/675). There were no significant differences in the rate of intra- and extra-intestinal tumors between UC and CD patients (both P>0.05). In the intra-intestinal tumor group, the age when diagnosed with IBD and the age when tumor diagnosed were (37.0±13.8) years old and (47.7±13.5) years old, which were both lower than those of the extra-intestinal tumor group ((51.8±6.2) years old and (60.7±7.8) years old), and the differences were statistically significant ( t=-3.69 and -3.24, P=0.001 and 0.002). The lesion location when tumor diagnosed of UC patients with intra-intestinal tumor mainly was extensive colonic type(64.0%, 16/25), followed by left part colonic type and rectal type in turn (28.0%, 7/25 and 8.0%, 2/25). In UC patients with extra-intestinal tumor, mainly was rectal type (8/12), followed by left part colonic type (3/12) and extensive colonic type (1/12) in turn. There was statistically significant difference bwtween the UC patients with intra- and extra-intestinal tumor in the extent of lesions when tumor diaghosed (Fisher′s exact test, P<0.001). The activity of IBD of intra-intestinal tumor group when tumor diagnosed mainly was severe activity phase (46.7%, 14/30), followed by moderate activity phase, mild activity phase and remission phase in turn (33.3%, 10/30; 20.0%, 6/30 and 0). The activity of IBD of extra-intestinal tumor group when tumor diagnosed mainly was remission phase (7/13), followed by moderate activity phase, mild activity phase and severe activity phase in turn (3/13, 2/13 and 1/13). There were statistically significant differences between the 2 groups in the composition of IBD activity when tumor diagnosed (Fisher′s exact test, P<0.001). The survival analysis indicated the median survival time of IBD complicated with intra-intestinal tumor group was 145.9 months, and that of the extra-intestinal tumor group was 29.9 months. The results of multivariate Cox analysis showed that the occurrence of extra-intestinal tumor was an independent risk factor of patient survival rate( HR=5.119, 95% confidence interval 1.485 to 17.643, P=0.010). Conclusions:IBD patients had a high risk of developing intra- and extra-intestinal tumors. The intra-intestinal tumor group mainly is extensive colonic type and severe active period, while the extra-intestinal tumor group mainly is rectal type and remission period. Compared with that of the extra-intestinal tumor group, the age at time of IBD onset and tumor diagnosed of intestinal tumor are younger, and the survival time is longer.

Background:Duodenal neuroendocrine tumors(DNETs)are rare tumors,their disease characteristics are currently not well understood.At present,there are no research data on non-ampullary region DNETs in China.Aims:To analyze the clinical characteristics of patients with non-ampullary region DNETs in order to guide clinical practice.Methods:The clinical data ofnon-ampullary region DNETs diagnosed in the First Affiliated Hospital of Air Force Military Medical University from June 2011 to July 2022 were collected.Using the method of retrospective study,analyze the clinical characteristics of patients.Results:Twenty-two non-ampullary region DNETs patients were screened.Among them,8(36.4%)patients'tumor diameter<2 cm,14(63.6%)patients'tumor diameter≥2 cm.When non-ampullary region DNETs were diagnosed,the main clinical symptoms were abdominal distension(59.1%),followed by abdominal pain(41.0%).When diagnosed,half(50%)of patients with non-ampullary DNETs with tumor diameter<2 cm have no clinical symptoms.The clinical symptoms of non-ampullary DNETs patients with tumor diameter≥2 cm were mainly abdominal distension(85.7%),followed by abdominal pain(57.1%),and a few(14.3%)patients had no clinical symptoms.After diagnosed,the survival time of patients with tumor diameter<2 cm was longer than that of patients with tumor diameter≥2 cm(P=0.048).By the end of follow-up,the median survival time of patients with non-ampullary region DNETs was 451.0 months.Six patients had died,all of their tumor diameter were≥2 cm at diagnosis.Three of patients who died had stage Ⅳ at diagnosis,and all had liver metastases.Patients with tumor diameter<2 cm underwent surgical treatment and all survived after surgery.Conclusions:Abdominal distension is the main clinical manifestation of non-ampullary region DNETs patients,and the organ that is more likely to metastasize is the liver.The survival time of patients with non-ampullary region DNETs with tumor diameter<2 cm was longer than that of patients with tumor diameter≥2 cm.

This study was aimed to evaluate an effective and stable method for obtaining mesenchymal stem cells (MSC) and endothelial progenitor cells (EPC) from the rabbit bone marrow and to investigate the biological characteristics of MSC and EPC. Mononuclear cells were obtained from rabbit bone marrow using density gradient method, and were differentially adhered to the cell culture plate enclosed with fibronectin. Then, MSC and EPC were amplified with EGB-2MV medium. Trypan blue method was used to test the passage survival rate. Growth curve, MTT and DNA cycle were used to evaluate the proliferation ability of MSC and EPC. MSC were identified with induced differentiation into the osteoblasts and adipocytes, and their immune phenotype was detected by flow cytometry (FCM). EPC were characterized by the special digestion of Dil-ac-LDL, FITC-UEA-I, and the conjunction with CD133, VEGFR2/KDR and CD34, their purity was also calculated. The results indicated that the colony was obviously formed when the mononuclear cells were cultured for 24 hours and, 80% of the cells became long spindle and integrated at d 8. Cells, which were adhered for twice, were cultured with EGM-2MV medium, began to extend at d 3, and became strip-shaped and integrated for about 80% at d 8. Passage survival rates were more than 90% for both cells, and after passage 2 the growth curve was like "S". Optical density was changed obviously when the cells were cultured for 3 - 5 d, but there were no significant difference of cell cycles between MSC and EPC, which G0-G1 was (93.32 ± 1.65)% and (93.05 ± 1.95)% respectively. Positive rates were (99.7 ± 1.12)%, (99.1 ± 2.33)%, (4.8 ± 0.38)%, (6.8 ± 0.49)% and (0.4 ± 0.08)% for CD90, CD44, CD14, CD45 and CD79a respectively. MSC were identified by induced differentiation into osteoblasts and adipocytes. Positive rates of the EPC, which were adhered for twice and passaged 2, were (82.1 ± 3.4)% for fluorescent staining of Dil-ac-LDL and FITC-UEA-I, and (74.2 ± 3.2)%, (64.7 ± 4.3)% and (43.5 ± 1.5)% for CD133, VEGFR2/KDR and CD34 respectively. It is concluded that high-purity MSC can be obtained with density gradient and differential adhesion method, and high-proliferation EPC can be cultured with EGM-2MV medium in cell plates enclosed with fibronectin, so they may become the optimal seed cells for tissue engineering study.
Animals ; Bone Marrow Cells ; cytology ; Cell Adhesion ; Cell Differentiation ; Cell Proliferation ; Cell Separation ; methods ; Cells, Cultured ; Endothelial Cells ; cytology ; Flow Cytometry ; Immunophenotyping ; Mesenchymal Stromal Cells ; cytology ; Rabbits ; Stem Cells ; cytology

Objective To analyze the epidemic features of anemia among students aged 6-11 years old in Minghang District,to provide basis for the control and prevention strategies of anemia among school students.Methods Surveillance on hemoglobin concentration was conducted among 42 872 students aged from 6 to 11 years old between 2012 and 2015.All data analyses were completed by SPSS 18.0 statistical software.Results The prevalence rate of anemia among school students 6-11 years old was 5.05％ (95％CI:4.84-5.26).The prevalence rate of anemia among girls was 5.28％,which was significantly higher than that 4.84％ among boys (x2 =4.24,P =0.037).Six-year-old boys and girls were most susceptible to anemia.Compared to students in Hope Schools,public school students are more vulnerable to anemia (boys:OR =2.37,95 ％ CI:2.03-2.76;girls:OR =2.08,95 ％ CI:1.74 -2.49).Overweight and obese students had a lower risk of anemia than average students (boys:OR =0.65,95 ％ CI:0.55-0.76;girls:OR =0.75,95 ％ CI:0.61-0.92).The three-year cumulative incidence of anemia was 12.80％ (95 ％CI:12.49-13.12).The cumulative incidence among girls was 14.52％,which was significantly higher than that of 11.28％ among boys (x2 =100.26,P＜0.001).Six-year-old boys have the highest three-year cumulative risk among all students,while 10-11-year-old girls have the highest three-year cumulative incidence.The risk of anemia in Hope School was found highest in all schools (boys:RR =1.93,95％CI:1.72-2.16;girls:RR =1.20,95 ％CI:1.04-1.39).Overweight and obesity were considered protective factors to anemia (boys:RR =0.75,95％CI:0.67-0.84;girls:RR =0.77,95％CI:0.68-0.88).The primary and recurrent detection rates of anemia were 14.58％ and 2.54％.The anemia among students was mainly detected during the first examination despite the differences in ages,schools and nutrition conditions (P ＜ 0.05).Conclusions The prevalence of anemia among primary school students in Minhang District is at a mild level.Control measures should be adopted,including monitoring of hemoglobin in all school children and adolescents,taking individual intervention measures based on results,promoting the health education for adolescent girls and parents of school children,and paying special attention to Hope School and students with recurrent and continuous anemia.

Objective To investigate the relationship between eating habits and childhood obesity by the method of cross-sectional survey in order to provide scientific basis for the prevention and intervention of childhood obesity.Methods We enrolled first-year students in Minhang District of Shanghai who participated in physical examination in 2014.Information was obtained from standardized face to face interviews of their parents or guardians with detailed questions on demographic characteristics,dietary habit,food preference,physical activity,sleep time and so on.Odds ratio (OR) and 95％ CI were calculated by unconditional Logistic regression models.Results Finally,5 752 students were enrolled in the study.The rate of obesity was 15.16％ (boys:18.35％;girls:11.83％) and the rate of over weight was 14.31％ (boys.:15.15％;girls:13.43％).Meat-based diet (OR=1.58,95％ CI:1.32-1.91),skipping breakfast (OR =1.87,95％ CI:1.01-3.46),eating too much caffeine-containing food (OR =1.66,95％ CI:1.09-2.51) and eating fast (OR:3.32-14.95) were associated with an increased risk of childhood obesity.Plant-based diet (OR =0.51,95％ CI:0.35-0.74) and choosy in food (OR:0.38-0.64) were associated with a decreased risk of childhood obesity.Besides,we found that children who preferred meat (OR =2.11,95％CI:1.42-3.14) and cured food (OR =1.42,95％ CI:1.05-1.92) had a higher risk of obesity.Conclusions Our results support the association between eating habits and childhood obesity.

Background: The efficacy of ustekinumab (UST) in the treatment of patients with inflammatory bowel disease (IBD) has been affirmed abroad, but its efficacy and safety have not been reported in China due to its short term of use. Aims: To analyze the clinical efficacy and safety of UST in the treatment of IBD. Methods: The clinical data of IBD patients treated with UST from November 2020 to June 2022 in the First Affiliated Hospital of Air Force Medical University were analyzed retrospectively. Results: A total of 46 patients with IBD treated with UST were enrolled, including 41 patients with Crohn’s disease (CD) and 5 patients with ulcerative colitis (UC). At the 8