Objective To explore the therapeutic effects and the mechanisms of Faecalibacterium prausnitzii (Fp) on trinitro-benzene-sulfonic acid-induced colitis.Methods Sixty Sprague-Dawley rats were divided into healthy control group, colitis model control group, Fp pretreated group,Fp supernatant pretreated group,Fp treated group and Fp supernatant treated group.Disease activity index (DAI),histological injury of colonic tissue,the content of butyrate in feces,forkhead box protein 3 (Foxp3) regulatory T cells (Treg) in peripheral blood and spleen and the level of interlenkin (IL)-17 and IL-6 in serum were evaluated.All the data were statistical analyzed by single factor analysis of variance. Results Compared with colitis model control group, DAI significantly lowered and histological injury obviously improved in Fp pretreated group, Fp supernatant pretreated group,Fp treated group and Fp supernatant treated group.The effects of Fp pretreated group were better than those of Fp treated group and Fp supernatant pretreated group were better than Fp supernatant treated group.The concentration of butyrate in Fp pretreated group,Fp supernatant pretreated group,Fp treated group and Fp supernatant treated group was (3091.08 ±485.50) × 106 mol/L,(1714.64 ± 351.25) × 10(-8) mol/L,(2064.75 ± 295.04) × 10-6 mol/L and (1089.13±321.23) × 10-6 mol/L respectively,there was significant difference between Fp pretreated group and other groups (F=49.796,P＜0.01).The peripheral blood level of Foxp3+ Treg in Fp supernatant pretreated group was highest.The spleen level of Foxp3+ Treg in Fp pretreated group and Fp supernatant pretreated group were significantly higher than that of other groups.The serum level of IL-17 and IL-6 in Fp pretreated group,Fp supernatant pretreated group,Fp treated group and Fp supernatant treated group was significantly lower than that of colitis model group.Conclustons Fp plays a role in promoting the repair of intestinal inflammatory reaction in colitis model rats.The mechanism may be related with butyrate producing,the peripheral blood and spleen level of Foxp3+ Treg up-regulating,suppressing the secretion of proinflammatory cytokine IL-17 and IL-6.Rebuilding the balance of Treg/Th17 to reduce local intestinal inflammation.

Objective To investigate the protective effects and mechanism of Faecalibacterium prausnitzii (Fp) and its products in 2,4,6-trinitrobenzene sulfonic acid (TNBS) induced colitis rats.Methods A total of 40 Sprague-Dawley rats were divided into healthy control group,colitis model group,Fp supernatant group,Fp bacteria group and Bifidobacterium longum (B.longum) group.The rats of the later four groups were enemaed with TNBS to establish the model.At five days before and one day after modeling,the rats were gavaged with phosphate buffer saline (PBS),the supernatant of Fp,live Fp bacteria and live B.longum respectively.Rats were executed at 48 hour after modeling.The colon tissues were taken for pathology examination.The content of short-chain fatty acids (SCFA) in fecal was tested by gas chromatography.The plasma level of interleukin-10 (IL- 10),interleukin-12 ( IL-12),interleukin-17 (IL-17) and interleukin-23 (IL-23) were detected by enzyme-linked immunosorbnent assay (ELISA) and the expression of IL-17 in intestinal mucosal tissues was measured by immunohistochemistry.The data were analyzed by one way ANOVA.Results Compared with the healthy control group,the rats of colitis group suffered serious weight loss and their intestinal pathology score increased [(193.57±14) g vs (170.25±19.18) g,(1.00±0.99) vs (3.34±0.38),t=2.83 and 7.55,all P value＜0.05].The Fp supernatant group showed protective effects in terms of weight and intestinal pathology score [(187.00± 14.67) g,(2.50±0.44),t=2.1 and 2.9,all P＜0.05].Compared with healthy control group,the plasma and colon tissue IL-17 concentration of colitis model group increased (16.61 pg/ml±2.45 pg/ml vs 20.47 pg/ml± 1.45 pg/ml,0.83±0.98 vs 5.14±0.90) (all P＜0.05).Compared with the colitis model group,the plasma and colon tissue IL-17 concentration of Fp supernatant group decreased ( 17.54 pg/ml± 1.51 pg/ml and 2.86±0.69).Conclusion Fp can regulate immune response and suppress rat colonic inflammation,which may be related with the expression of IL-17.

Objective: To investigate the spatio-temporal distribution characteristics of pulmonary tuberculosis in Ningbo City from 2015 to 2020, so as to provide insights into tuberculosis control. Methods: The data of pulmonary tuberculosis cases in Ningbo City from 2015 to 2020 were collected from Tuberculosis Management Information System of China Disease Control and Prevention Information System, and were linked with the geographic information database of Ningbo Planning Design and Research Institute. The software SaTScan version 10.3 was employed for monthly spatio-temporal scanning and cluster analysis of reported pulmonary tuberculosis cases, populations, longitude and latitude in 153 townships of Ningbo City from 2015 to 2020. Results: There were one class Ⅰ cluster and two class Ⅱ clusters of pulmonary tuberculosis cases in Ningbo City from 2015 to 2020, and the class Ⅰ cluster was centered in Song'ao Township and covered 37 townships, with aggregation time from January 1, 2015 to December 31, 2017, while class Ⅱ clusters were covered 38 tounships which were centered in Sanqishi Township of Yuyao County, and one township in Hangzhou Bay New Town. The aggregation time was from January to June in 2015 and 2016, from March to August between 2017 and 2019 and between May and October, 2020. The overall reported incidence of pulmonary tuberculosis appeared a tendency towards a decline in each township of Ningbo City from 2015 to 2020; however, the incidence of pulmonary tuberculosis was more than 80 per 100 thousand in Fuming Township of Yinzhou District and Juexi Township of Xiangshan County in 2020. Conclusions There were significant spatio-temporal clustering characteristics of pulmonary tuberculosis incidence at a township level in Ningbo City from 2015 to 2020, and the clusters were mainly concentrated in the central and eastern Ningbo City. The reported incidence of pulmonary tuberculosis is high in Fuming Township of Yinzhou District and Juexi Township of Xiangshan County, where targeted regional tuberculosis control strategies should be implemented.

Objective To explore the application value of triggered angiography non-contrast enhanced (TRANCE) technology in diagnosing lower limb arterial occlusive disease.Methods Totally 22 lower limb arterial occlusive disease patients were randomly selected,and then underwent TRANCE and DSA examinations.The arteries from the abdomen to the lower limb were divided into abdominal aorta,common iliac artery,external iliac artery,internal iliac artery,superficial femoral artery,deep femoral artery,popliteal artery,anterior tibial artery,posterior tibial artery and peroneal artery.Totally 337 sections displayed clearly were chosen to go through examinations by TRANCE and DSA.Results Of the 337 sections there were 312 ones with the same stenoses found by TRANCE and DSA,TRANCE found 16 sections with worse stenoses and 9 milder ones than by DSA.There were 153 sections with the same moderate stenoses (≥50％) displayed by TRANCE and DSA;Of the 153 sections,there were 15 ones with worse stenoses and 6 ones with milder stenoses found by TRANCE than by DSA.Kappa value of the two methods was 0.905.Conclusion TRANCE technology is a non-invasive,safe and nonradiative diagnosing method for the lower limb arterial occlusive disease.

Objective:To observe the effects of acupuncture at Houxi(SI3)and Huantiao(GB30)on the expression levels of nuclear factor kappa B(NF-κB),inducible nitric oxide synthase(iNOS),and nitric oxide(NO)of NF-κB inflammatory signaling pathway in L5 spinal nerve root of lumbar disc herniation(LDH)model rats and explore the mechanism of acupuncture in LDH treatment.Methods:Forty specific-pathogen-free healthy male Sprague-Dawley rats were randomly divided into a sham operation group,a model group,acupuncture group 1,and acupuncture group 2,with 10 rats in each group.The non-compression nucleus protrusion model was made by puncturing L4-L5 spinous process space and injecting autologous nucleus suspension.Acupuncture at bilateral Shenshu(BL23),Dachangshu(BL25),and Weizhong(BL40)was carried out in acupuncture group 1,and acupuncture at bilateral Houxi(SI3)and Huantiao(GB30)in acupuncture group 2.All rats were treated with balanced reinforcing and reducing needling manipulations,and the needles were retained for 30 min/time with one episode of needling manipulation every 10 min,once a day,14 times in total.The threshold value of paw withdrawal pain was measured by a thermal stimulation pain instrument;the serum NF-κB,iNOS,and NO levels were measured by enzyme-linked immunosorbent assay.The pathomorphological changes of spinal nerve roots were observed by hematoxylin-eosin(HE)staining;quantitative reverse transcription polymerase chain reaction was used to detect iNOS mRNA expression in spinal nerve roots;the NF-κB and iNOS protein expression in spinal nerve roots was detected by the immunofluorescence method.Results:Compared with the sham operation group,the threshold of paw withdrawal pain in the model group was decreased,and the expression levels of serum NF-κB,iNOS,and NO were increased;HE staining showed many degenerated and dissolved Schwann cells in spinal nerve roots with vacuolar changes;meanwhile,the expression levels of NF-κB and iNOS proteins,and the iNOS mRNA in spinal nerve roots were increased.Compared with the model group,the paw withdrawal pain thresholds in acupuncture group 1 and acupuncture group 2 were increased,and the increase in acupuncture group 2 was greater(P<0.05);the expression levels of serum NF-κB,iNOS,and NO in acupuncture group 1 and acupuncture group 2 were decreased,especially in acupuncture group 2(P<0.01);the vacuolar changes of spinal nerve roots,and the degeneration and lysis of Schwann cells in acupuncture group 1 and acupuncture group 2 were decreased,which were more obvious in acupuncture group 2;the NF-κB and iNOS protein expression and the iNOS mRNA expression levels in spinal nerve roots of acupuncture group 1 and acupuncture group 2 were decreased,especially in acupuncture group 2(P<0.01).Conclusion:Acupuncture at Houxi(SI3)and Huantiao(GB30)can improve the morphology of spinal nerve roots,inhibit the NF-κB and iNOS protein expression levels in spinal nerve roots and the serum NO level,and relieve the pain caused by inflammation of spinal nerve roots,which may be one of the mechanisms of acupuncture in LDH treatment.

Objective To investigate the predictive value of pregnancy-associated plasmaprotein-A (PAPP-A) and GRACE risk score for death and nonfatal myocardial infarction (combined endpoint) in AMI patients.Methods All AMI patients hospitalized in our department during July 2011 to July 2015 were included consecutively in this prospective study.Plasma PAPP-A were measured at admission.GRACE risk score was acquired with the application of GRACE risk score calculator.Patients were followed up for at least 1 year for any nonfatal myocardial infarction or MACE.Kaplan Meier survival study was analysed according to PAPP-A and GRACE score risk stratification respectively.A cutoff value of 3.0 ng/ml of PAPP-A was chosen from pilot work in this cohort.Results A total of 220 patients were enrolled in the study.The death and nonfatal myocardial infarction during follow-up were significantly higher in patients with PAPP-A≥3.0 ng/ml compared to patients with PAPP-A<3.0 ng/ml (15.7% vs.6.0%, log-rank χ2=5.684, P=0.017).The area under ROC curve of PAPP-A was 0.796(95%CI 0.696-0.896, P<0.01) and the ROC curve of PAPP-A GRACE risk stratification was 0.715 (95%CI 0.567-0.863,P<0.01).Subgroup analysis showed that death and nonfatal myocardial infarction during follow-up was significantly higher in patients with PAPP-A≥3.0 ng/ml compared to patients with PAPP-A<3.0 ng/ml in intermediate and low risk group by GRACE risk stratifcation (log-rank χ2=14.63,P<0.001).Conclusions PAPP-A could predict mortality and nonfatal myocardial infarction in patients with AMI.PAPP-A combined with GRACE risk score can better predict outcome than GRACE risk score alone in intermediate and low risk patients by GRACE risk stratifcation.

OBJECTIVETo explore the correlation between methylation of insulin-like growth factor 1 (IGF-1) gene promoter and its placenta-specific expression and fetal macrosoma.

METHODSOne hundred twenty nine healthy pregnant women were recruited between April 2011 and March 2012. Baseline data were collected with self-report questionnaires. Real-time quantitative PCR was used to determine the expression of IGF-1 mRNA in the placenta. Methylation level of the IGF 1 gene was determined with matrix-assisted laser desorption/ionization-time of flight mass spectrometry.

RESULTSThe expression of IGF-1 in placenta and its methylation level showed no significant difference between macrosomic fetuses and controls. No linear correlation was found between IGF-1 mRNA expression and methylation level of IGF-1 promoter (r=0.128, P=0.295). IGF-1 promoter region in placenta showed a hypomethylation status. However, a positive correlation was found between IGF-1 expression and birth weight below 4260 g (r=0.264, P=0.022). The expression of IGF-1 mRNA was significantly higher in those with a birth weight below 4260 g, which suggested that placental IGF-1 expression may contribute to increased birth weight. In regard to fetal overgrowth, however, there seemed to be a negative correlation in which placental IGF-1 expression was downregulated to limit fetal overgrowth.

CONCLUSIONNo linear correlation was found between placental IGF-1 expression and methylation level of IGF-1 promoter with a hypomethylation status. The contribution of placental IGF-1 expression to birth weight is bidirectional. Increased expression seems to promote fetal growth, while decreased expressions may curb overgrowth, therefore control fetal growth in a relatively normal range.

Birth Weight ; DNA Methylation ; Female ; Fetal Macrosomia ; genetics ; Humans ; Infant, Newborn ; Insulin-Like Growth Factor I ; genetics ; Placenta ; metabolism ; Pregnancy ; Promoter Regions, Genetic ; RNA, Messenger ; analysis

BACKGROUNDTo determine the expression of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) in lung cancer specimens, and to find out the possible roles of MMPs and TIMPs in the infiltration and metastasis of lung cancer.

METHODSThe expression of MMP-1, MMP-2, MMP-9, MMP-13, TIMP-1, TIMP-2 were detected in 104 lung cancer tissues by immunohistochemical method.

RESULTSThe expressions of MMPs and TIMPs were up-regulated in lung cancer tissues. The expression of MMP-2 was related to differentiated degree of tumor cells. MMP-9 correlated with lymph node metastasis of lung cancer. The positive rate of TIMP-1 was related to TNM stage and lymph node metastasis. In lung cancer tissues, there was positive correlation between MMP-2 and TIMP-2, and between MMP-9 and TIMP-2.

CONCLUSIONSMMPs and TIMPs may play the important roles in the development of lung cancer. MMP-9 and TIMP-1 might promote the infiltration and metastasis of lung cancer.

BACKGROUNDTo study the relationship between the expression of E-cadherin and MVD in lung cancer and its significance.

METHODSThe expressions of E-cadherin and factor VIII were detected in 104 lung cancer tissues by immunohistochemical method, and MVD was calculated by image analysis system.

RESULTSThe expression of E-cadherin was significantly related to the differentiation of lung cancer (P < 0.05). A negative correlation was observed between E-cadherin expression and MVD in lung cancer tissues (P= 0.047).

CONCLUSIONSDownexpression of E-cadherin and increase of MVD may play an important role in the invasion and metastasis of lung cancer, and may also be used as a useful marker for tumor prognosis.

Objective:To investigate the effect of peer support-based narrative therapy on postoperative self-image and stigma of patients with head and neck cancer, to provide reference for clinical nursing.Methods:A total of 78 head and neck cancer patients from August 2018 to August 2020 in Fudan University Shanghai Cancer Center were divided into experimental group and control group by random digits table method, each group were 39 cases. The control group was given conventional nursing, while the experimental group implemented support-based narrative therapy on the basis of routine nursing. The intervention time was 4 weeks. The self-image and stigma of the two groups before and after intervention were assessed by Body Image Scale (BIS) and Social Impact Scale (SIS), respectively.Results:Finally, 37 cases were included in the experimental group and 38 cases in the control group. There was no significant difference in BIS, SIS dimension scores and total scores between the two groups before intervention ( P>0.05). After intervention, the emotional demension scores, behavior dimension scores, cognitive dimension scores and total scores in BIS were 4.41 ± 1.04, 1.95 ± 0.51, 3.81 ± 0.63 and 10.16 ± 2.05 in the experimental group, significantly lower than in the control group 5.08 ± 1.08, 2.82 ± 0.60, 5.42 ± 0.76 and 13.32 ± 1.93, the differences were statistically significant ( t values were 2.76-6.86, all P<0.01); the social exclusion scores, internal shame scores, social isolation scores and total stigma scores in SIS were 17.57 ± 2.67, 9.08 ± 1.55, 12.14 ± 3.73 and 46.14 ± 4.95 in the experimental group, significantly lower than in the control group 19.18 ± 3.70, 10.68 ± 1.61, 14.18 ± 3.83 and 51.68 ± 6.09, the differences were statistically significant ( t values were 2.16-4.38, all P<0.05). Conclusions:Peer support-based narrative therapy can effectively alleviate the postoperative self-image problems and stigma of patients with head and neck cancer, which is worthy of clinical application.