ObjectiveTo explore the theoretical construct of network values and design the network values questionnaire.MethodsThis research was to design the network values questionnaire based on an open-ended inventory survey,overviews of former studies and counseling of experts.Through stratified sampling,832 college students were investigated by the network questionnaire.The data were examined by item analysis,factor analysis,reliability and validity analysis.ResultsThe network values was a multi-dimensional construct which had three factors.The three factors cumulative total explained variance was 50.719％,52.545％ and 50.510％.The questionnaire's internal consistency reliability was 0.931 and 0.809-0.874 for the three subscales.The questionnaire's split-half reliability was 0.902 and 0.772-0.864 for the three subscales.ConclusionThe theoretical construct of network values is rational.The questionnaire has good reliability and validity.

Arsenic is a toxic metalloid, which may enter the human body through a variety of routes, including drinking water, food, and air. Previous studies have shown that arsenic exposure during pregnancy may cause pregnancy complications and adverse pregnancy outcomes, and maternal arsenic levels correlate with neonatal neurodevelopment and adult health. However, the negative impact of arsenic exposure during pregnancy on maternal and child health has not been widely accepted because of inconsistent study conclusions and unclear mechanisms. Based on international and national studies pertaining to the effect of arsenic exposure during pregnancy on maternal and child health during the period between 2007 and 2022, this review describes the influencing factors and biomarkers of arsenic exposure during pregnancy, associations of arsenic exposure during pregnancy with pregnancy complications and adverse pregnancy outcomes and impact of arsenic exposure during pregnancy on neonatal neurodevelopment, and discusses the mechanisms underlying negative health effects caused by arsenic exposure during pregnancy, so as to provide the evidence for assessing the hazards of arsenic exposure during pregnancy and formulating the control strategy.

Humans ; Leukoplakia, Oral ; genetics ; Lichen Planus, Oral ; genetics ; Polymorphism, Single Nucleotide

At present,there are some problems about teaching acupuncture and massage elective course in colleges of western medicine,which are caused by student's specialty,thinking mode and the teaching material of elective course.To improve the quality of the teaching in acupuncture and massage,it is necessary to reorientate the teaching intention,adjust the course plan.

Objective To summarize the experience in diagnosis and treatment of primary splenic neoplasm (PSN) to promote understanding of the disease. Methods The clinical data of all admitted patients with PSN treated in this hospital from February 1989 to February 2004 were retrospectively analyzed. Results A total of 63 patients were treated by surgery and pathologically confirmed as PSN. Twenty-one patients were treated by splenectomy alone. Twenty-seven patients underwent distal pancreatectomy and splenectomy. Fifteen patients received splenectomy combined with excision of tumor, the 5-year survival rate was 35.9%(15/42). Conclusion PSN should be diagnosed mainly according to clinical manifestations, image examination, and fine needle aspiration biopsy. CT and angiography play an important role in the identification of benign and malignant splenic mass. Early diagnosis, radical resection and comprehensive treatment are important for improving the prognosis of PSN.

Objective To explore the expression of transcriptional regulation factor FHL 1 in pancreatic fibrosis of chronic pancreatitis (CP) and clinical significance.Methods Serum samples from 20 CP patients treated in the Department of Gastroenterology , Nanjing General Hospital and 20 healthy controls in the corresponding period were collected .The level of FHL1 in the serum was detected by ELISA .Twenty male Wistar rats were randomly divided into control group and CP group according to the body weight .The CP rat model was established by injecting dibutyltin dichloride ( DBTC) through tail vein .All the rats were killed at 28 days after injection and the pancreas was collected , which was observed using hematoxylin and eosin ( HE) staining to investigate pathological changes . The expression of FHL1 in pancreas was measured by immunohistochemistry (IHC) and Western blotting (WB).Results The average of serum FHL1 level in two groups were (0.86 ±0.22)g/L and (1.18 ±0.22)g/L, respectively.The level of FHL1 in serum of CP patients was significantly lower than that of healthy cases , and the difference was statistically significant (t=10.54, P=0.001).Damaged pancreatic lobular structure , acinar atrophy and the obvious fibrous hyperplasia were observed in CP rats .The pathological score of abnormal structure , acinar atrophy, fibrosis, and inflammatory cell infiltration in the pancreas of the CP group was (2.2 ±0.4),(2.0 ±0.7),(2.4 ±0.3) and (2.8 ±0.6), respectively, but was all 0 in control group.The difference between two group was statistically significant ( t value =17.24, 9.01, 25.22 and 14.75, respectively, all P<0.001).The expression of FHL1 in the pancreatic tissue of CP group were less than that of normal group , and the difference was statistically significant (IHC:15 798 ±3 247 vs 37 570 ±9 254, t=2.438,P=0.016;WB:0.44 ±0.11 vs 0.89 ±0.03, t=4.289, P=0.002).Conclusions The protein of FHL1 was in low expression in the pancreas of CPs , indicating that FHL1 may participate in the formation of pancreatic fibrosis .

Objective To explore the imaging features of solitary fibrous tumor (SFT)in the head and neck.Methods The CT and MR findings of 10 patients with SFT in the head and neck confirmed by hsitopathology were analyzed retrospectively.All patients underwent CT (including contrast-enhanced dual-phase CT),and MR imaging was obtained in 2 patients.Results All 10 lesions were found as solitary masses ranging in maximum diameter from 20 to 1 1 5 mm (average 35.5 mm),with the location in the orbit (2 cases),nasal cavity and nasal sinuses (4 cases),parotid gland (1 case),supraclavicular region (1 case),subcutaneous tissue of the maxillofacial (1 case)and occipital region (1 case).The lesions showed elliptic shape in 7 cases and lobulated configuration in 3 cases.The majority (8/10 )of lesions demonstrated well-defined margin.The lesions on CT imaging were isodensity or low density, homogeneous density in 4 cases and inhomogeneous density in 6 cases,cystic changes in 2 cases,calcification in 1 case.9 lesions showed strongly homogeneous (n=3)or inhomogeneous (n=6)enhancement,1 lesion showed mildly homogeneous enhancement on contrast-enhanced CT imaging.On dual-phase enhanced CT,8 patients exhibited a rapidly enhancing and slow washout pattern,1 patient exhibited a rapidly enhancing and rapid washout pattern,and 1 patient exhibited delayed enhancement.The lesions showed homogeneous isointense relative to gray matter on T1 WI in 1 patient,mixed isointense and hypointense in 1 patient.On T2 WI,the lesion showed isointense signal in 1 patient,and heterogeneous mixed isointense and hyperintense signal in another.2 lesions demonstrated markedly homogeneous and inhomogeneous enhancement respectively.Conclusion Solitary fibrous tumors shall be considered in cases of inhomogeneous hypervascular tumors in the head and neck.Compared with the gray matter,isointense or mildly hyperintense signal on T2 WI, marked enhancement on contrast-enhanced CT,and a rapidly enhancing and slow washout pattern on dual-phase enhanced CT may be valuable imaging features of SFT.

Objective To explore the expression of DC?SIGN, the phenotype of dendritic cells (DCs), on podocytes, and its role in immune and inflammatory responses of lupus nephritis (LN). Methods DC?SIGN and IgG1 expression in renal tissues of lupus nephritis patients were observed by immunohistochemistry and immunofluorescence. The 4?week old LN mice were randomly divided into the experimental group and the intervention group. C57BL/6J mice were used as normal control group. Mice of the intervention group were injected anti?DC?SIGN antibody at 6?week old. Mice were sacrificed at 16, 20, 24, 28?week old respectively, to observe the mice renal function and pathological changes. And DC?SIGN and IgG1 expression in renal tissue were observed by immunohistochemistry and immunofluorescence. In addition, mice podocytes were treated with serum of LN mice. Flow cytometry was used to investigate the expression of MHC II, CD80 and DC?SIGN expression on podocytes. Mixed lymphocyte reaction was used to detect the ability of stimulating T cells proliferation. IFN?gamma and IL?4 in supernatant were determined by ELISA. Results (1) Expression of DC?SIGN and IgG1 was found in glomeruli of lupus nephritis patients. (2) Accompanied by increased proteinuria of LN mice from 20?week old (P<0.01), DC?SIGN and IgG1 expression was found in glomeruli, and the renal function deteriorated up to 24 week?old (P<0.01). Mice with anti?DC?SIGN antibody intervention appeared reduced proteinuria and remission of renal function (P<0.01). (3) After stimulated by serum of LN mice, the expression of DC?SIGN, MHC II and CD80 was up?regulated, stimulation of T cell proliferation was enhanced (P<0.01), and IFN?gamma/IL?4 ratio increased (P<0.01). Anti?DC?SIGN antibody treatment down?regulated the expressions of DC?SIGN, MHC II and CD80 on podocytes, decreased the ability of stimulating T cell proliferation and lowered the ratio of IFN?gamma/IL?4 (P<0.01). Conclusions Podocytes in lupus nephritis can play DC?like function through the expression of DC?SIGN, which may be involved in immune and inflammatory responses of renal tissue. However, inhibiton of DC?SIGN can depress immune function of podocytes and have prevention and treatment effect.

Objective: The study was to reveal the inhibition of neovascularization by Tongbiling. Methods: Rat model were established by injecting CFA at the root of the tail and divided into model control group, Indomethacin group and Tongbiling group at random. The serum and paws were collected after seven days treatment. 10ng/L VEGF solution was added I into CAM to stimulate the neovascularization, and to observe the influence of each group of serum on the first and second order new vessels. RT-PCR method was taken to determine the expression of mRNA of VEGF and VEGFR-1 of paws in different groups. Results: The number of vessels in the model control group was significantly more than that in the Indomethacin group and the Tongbiling group (P

0.05).【Conclusion】Acupoint application shows a therapeutic effect for bronchial asthma in non-acute attack stage by reducing the attack frequency,and its mechanism may be related to the regulation of cellular immune function thus inhibit the airway inflammatory response mediated by EOS.