Objective To provide the evidence for working out the strategies for library service by investigating the characteristics of Internet users' information behaviors in medical college and university library. Methods The In-ternet users' information behaviors in electronic reading room of medical college and university library were recorded using management software and analyzed using the SPSS. Results Medical undergraduates were the major readers in electronic reading room of medical college and university library. Their Internet information behaviors were charac-terized by information searching which accounted for 55. 19%. The use of foreign databases, especially PubMed, was more than that of domestic databases. The time of readers to search and use information was centralized in their working hours. Conclusion Library should help its readers to know how to search the databases, how to make full use of Internet resources, and how to improve their learning efficiency in order to make sure that the readers can ef-fectively search and use the Internet information.

Objective To discuss the diagnostic value of 3D-ultrasound for cord entanglement in monoam-niotic twins. Methods From November 2013 to March 2016,a total of 65 monoamniotic twinsunderwent routine obstetric ultrasonography to screen fetal abnormalities in our hospital. The cord was meticulously observedusing a systematic continuous sequence approach. Fetuses who showed cord entanglement by 2-D ultrasound or 3-D flow Doppler were all recruited. The gestational weeks,fetal malformation,ultrasonic image feature of cord entangle-ment,and clinicaloutcome were recorded and analyzed retrospectively. Results 4 monoamniotic twins showed cord entanglement. Three-dimensional color Doppler clearly delineated thefeatures of entanglement. At following-up of 8 fetuses,3 fetuses were found intrauterine fetal death and 3 fetuses with structural abnormalities except for 2 well infants.Conclusion Cord entanglement may threaten the safety of fetusesin monoamniotic pregnancies.In aid of 2-D ultrasound or 3-D flow Doppler in monoamniotic twins can help to find it in time ,monitor it carefully and provide evidence for obstetric treatment .

Objective:To explore the mechanism of cardiac function decreasing in patients with ankylosing spondylitis based on Keap1-Nrf2-ARE signaling pathway .Methods:Experiment group included 140 ankylosing spondylitis ( AS) patients and control group included 60 healthy individuals .Echocardiography ( UCG) was used to detect cardiac function parameters .Enzyme-linked immunosor-bent assay(ELISA) was adopted to determine serum proteins ,oxidative stress indicators and cytokines .Erythrocyte sedimentation and plasma C reactive protein ,immunoglobulin were detected with Westergren method and Hitachi 7060 automatic biochemical analyzer re-spectively.Results:(1)Compared with the normal control group , character of AS group in active stage:cardiac function parameters(E peak,EF,E/A),antioxidant indicators(SOD,CAT,TAOC),cytokines(IL-4,IL-10)decreased (P<0.01 or P<0.05 all).A peak, Keap1,Nrf2,oxidation index(ROS,RNS,MDA),cytokines(IL-1,TNF-α),inflammatory indicators(ESR,CRP)increased(P<0.01 or P<0.05 all).(2)Compared with the normal control group, character of AS group in stable stage: cardiac function parameters(E peak,E/A),Keap1,antioxidant indicators(SOD,CAT,TAOC),cytokines(IL-4,IL-10)decreased (P<0.01 or P<0.05 all).A peak, Nrf2,oxidation index(ROS,RNS,MDA),cytokines(TNF-α),inflammatory indicators(ESR,CRP) increased(P<0.01 or P<0.05 all).(3)Compared with AS group in stable stage , character of AS group in active stage:cardiac function parameters(E peak,EF,E/A),antioxidant indicators(SOD,TAOC),cytokines(IL-10)decreased (P<0.01 or P<0.05 all).Keap1,Nrf2,oxidation index(ROS, RNS,MDA),cytokines(IL-1β,TNF-α),inflammatory indicators(ESR,CRP),clinical evaluation indicators (VAS,BASDAI,BASFI, BASMI,BAS-G)increased(P<0.01 or P<0.05 all).(4)Compared with AS patients with normal Keap1 or Nrf2 of peripheral blood, A peak increased while E peak and E/A decreased in AS patients with abnormal Keap1 or Nrf2 of peripheral blood (P<0.01 or P<0.05).(5)Spearman correlation analysis showed:AS parameters of cardiac function in patients with E peak and antioxidant indicators (SOD,CAT,TAOC),cytokines(IL-4,IL-10)showed significant positive correlation.E peak and Keap1, Nrf2,oxidation index(ROS, RNS,MDA),cytokines(IL-1β,TNF-α),inflammatory indicators(ESR,CRP),clinical evaluation indicators (VAS,BASDAI,BASFI, BASMI,BAS-G),IgG,course of the disease were significantly negatively correlated .A peak and Nrf2,oxidation index ( ROS,RNS, MDA) ,cytokines ( IL-1β,TNF-α) ,clinical evaluation indicators , Palpitation showed significant positive correlation .A peak and antiox-idant indicators(SOD,CAT,TAOC),cytokines(IL-4,IL-10)were significantly negatively correlated .E/A and Keap1,antioxidant indi-cators(SOD,CAT,TAOC),cytokines(IL-4,IL-10)showed significant positive correlation.E/A and oxidation index(ROS,RNS, MDA) ,cytokines ( TNF-α) ,cxcinical evaluation indicators ,course of the disease were significantly negatively correlated .EF and course of the disease were significantly negatively correlated .FS and Keap1 showed significant negative correlation .Conclusion:Cardiac func-tion decreasing in patients with ankylosing spondylitis is 33.56%.The characteristic performance is that E peak , E/A decreased while A peak increased.E peak,E/A and antioxidant indicators ,anti-inflammatory cytokines show significant positive correlation .E peak,E/A and Keap1,oxidation index,pro-inflammatory cytokines,inflammatory indicators are significantly negatively correlated .A peak and Keap1,oxidation index ,pro-inflammatory cytokines show significant positive correlation .A peak and antioxidant indicators ,anti-inflam-matory cytokines are significantly negatively correlated .The rising of Keap1 expression cause activate the Keap 1-Nrf2-ARE signaling pathway .After the signaling pathway is activated ,the body's antioxidant ability decreased , pro-inflammatory cytokines imbalanced , in-flammation index increased .When the body is long be in unbalance condition , the number of abnormal immune complex deposition in-creased.In the end,the result is that AS is caused and cardiac function is decreased .

Objective To investigate the correlation of right ventricular (RV) to left ventricular (LV) volume ratio (RVv/LVv) measured by chest CT with pulmonary arterial pressure estimated by echocardiography before lung transplantation.Methods We reviewed 104 cases of lung transplant.According to the mean pulmonary arterial pressure (mPAP) exceeding 25 mmHg by right heart catheterization,hypertensive group (n =74) and normotensive group (n =30) were set up.Risk factors were assessed individually and adjusted for confounding by a multivariable logistic regression analysis.The area under the curve (AUC) for predicting pulmonary hypertension on chest CT and echocardiography was calculated.Results RVv/LVv and echocardiography-derived ptlmonary arterial systolic pressure (PASP) were significantly different between the two groups (P ＜ 0.05).In the hypertensive group,there was strong correlation between the RVv/LVv and PASP from catheterization (R =0.82,P＜0.001),also between the P ASP from echocardiography and catheterization (R =0.60,P＜ 0.001).The ROC curve displayed that with 0.85 as the cutoff for RVv/LVv,the sensmitivity,specificity and accuracy rate for predicting mPAP over 25 mmHg were 87.5％,91.8％ and 90.9％,respectively.The ROC curve also displayed that based upon an echocardiography-derived PASP of 35 mmHg as the cutoff point,the sensitivity,specificity and accuracy rate for predicting mPAP over 25 mmHg were 91.2％,90.8％ and 88.4％,respectively.Conclusion RV/LV volume ratios on chest CT and echocardiographic evaluation correlate well with PASP assessed by right heart catheterization and can be used to predict pulmonary hypertension with high sensitivity and specificity.

This study performed to observe the effect of Yiqi Jianpi Shengjin recipe on Tfr/Tfh cell balance and autophagy expression in primary Sj?gren's syndrome(pSS)patients,and to explore the intervention mechanism of Yiqi Jianpi Shengjin recipe in treating pSS.We collected 60 cases of pSS with deficiency of both qi and yin from the Department of Rheumatology and Immunology of Anhui Provincial Hospital of TCM and randomly grouped them into experimental group and control group,with each group consisting of 30 cases.The control group was given a dose of hydroxychloroquine sulphate 0.2 g bid,the experimental group received an additional oral dose of Yiqi Jianpi Shengjin formula on top of the control group's treatment,and both continued to take it for 12 weeks.IL-10,IL-21 and IL-6 levels were measured by enzyme-linked immunosorbent assay,Tfh and Tfr cells ratios were measured by Flow cytometry,Western blot was used to detect the protein expression of Atg5,Beclin1 and LC3-Ⅱ/Ⅰ,and qPCR was used to detect the RNA expression of Atg5,Beclin1 and LC3.The indexes of inflammation,dryness,ESSPRI,ESSDAI and TCM syndrome integral before and after treatment were statistically analyzed.Data showed that the scores of corneal fluorescence stainin g in the experimental group were significantly lower and the static saliva flow rate was significantly higher compared with the control group.The experimental group showed a marked reduction in TCM,ESSPRI and ESSDAI score after treatment compared to control group.The expression of IL-21,IL-10 and IgG in the experimental group was markedly lower compa red with the control group.Tfr cells were significantly lower in the experimental group as compared to the control group.T he expression and ratio of autophagy protein and mRNA in the experimental group were significantly lower compared with t he control group.In conclusion,Yiqi Jianpi Shengjin recipe can effectively reestablish the balance of Tfr/Tfh cells,regulate cytokines,inhibit autophagy and activity,relieve clinical symptoms,delay disease activity,and improve the secretion of lacrimal gland and salivary gland.

The aim of this study is to investigate the mechanism by which triptolide(TP)ameliorates inflammation in adjuvant arthritis(AA)rats by inhibiting pyroptosis through the lncRNA GAS5/miR-21/TLR4 signaling axis.Rats were divided into 4 groups:normal control group(NC),model control group(MC),triptolide group(TP)and methotrexate group(MTX),with 6 rats in each group.The AA rat model was established,and the general state,right foot-plantar swelling and arthritis index were observed;HE staining was used to detect the histopathological morphology of synovial joints of rats in each group;ELISA was used to detect the levels of inflammatory factors IL-1β,IL-6,IL-18 and TNF-α;fluorescence quantitative PCR was used to detect the mRNA expression levels of Caspase-1,IL-1β,NLRP3,GSDMD,GAS5,TLR4,NF-κB and miR-21;and Western blot was used to detect the expression levels of Caspase-1,NLRP3,GSDMD,NF-κB,Caspase-4 and TLR4 proteins.Compared with the NC group,rats in the MC group showed significantly higher levels of swelling,arthritis index(P<0.05)and inflammatory cell infiltration;compared with the MC group,the levels of IL-1β,IL-6,IL-18 and TNF-α were decreased in the TP and MTX groups(P<0.05),and the levels of Caspase-1,IL-1β,NLRP3,GSDMD,TLR4,NF-κB,miR-21 mRNA expression decreased,GAS5 mRNA expression increased(P<0.05),and the protein levels of Caspase-1,NLRP3,GSDMD,NF-κB,Caspase-4 and TLR4 decreased(P<0.05);compared with the MTX group,the TP group showed lower levels of IL-1β,IL-6,IL-18,TNF-α(P<0.05),and lower expression levels of Caspase-1,IL-1β,NLRP3,GSDMD,TLR4,NF-κB and miR-21 mRNA(P<0.05).In conclusion,triptolide may inhibit the production of pro-inflammatory factors and inhibit pyroptosis through the lncRNA GAS5/miR-21/TLR4 signaling axis,thus ameliorate inflammation in AA rats.

OBJECTIVE: To report the clinical and genetic characteristics of a rare case of Gitelman syndrome with comorbid Graves disease and ACTH-independent adrenocortical adenoma. METHODS: A patient who had presented at the Nanchong Central Hospital on December 21, 2020 was selected as the study subject. Clinical data of the patient was collected. Whole-exome sequencing was carried out on DNA extracted from peripheral venous blood samples from the patient and her family members. RESULTS: The patient, a 45-year-old woman, was found to have Graves disease, ACTH-independent Cushing syndrome, hypokalemia and hypomagnesemia following the discovery of an adrenal incidentaloma. MRI scan had revealed a 3.8 cm × 3.2 cm mass in the left adrenal gland. The mass was removed by surgery and confirmed as adrenocortical adenoma. DNA sequencing revealed that the patient and her sister have both harbored compound heterozygous variants of the SLC12A3 gene, namely c.1444-10(IVS11)G>A and c.179(exon1)C>T (p.T60M), which were respectively inherited from their father and mother. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the c.1444-10(IVS11)G>A and c.179(exon1)C>T (p.T60M) were respectively classified as a variant of uncertain significance (PM2_Supporting+PP3) and a likely pathogenic variant (PM3_Strong+PM1+PP3). CONCLUSION The conjunction of Gitelman syndrome with Graves disease and adrenal cortex adenoma is rather rare. The newly discovered c.1444-10(IVS11)G>A variant of the SLC12A3 gene, together with the heterozygous variant of c.179(exon1)C>T (p.T60M), probably underlay the pathogenesis in this patient.
Humans ; Female ; Middle Aged ; Gitelman Syndrome/genetics* ; Adrenocortical Adenoma ; Hypokalemia ; Graves Disease/genetics* ; Mothers ; Mutation ; Solute Carrier Family 12, Member 3

OBJECTIVETo investigate the effects of Xinfeng Capsule (XFC) on pulmonary function and related mechanism in adjuvant-induced arthritis (AA) rats.

METHODSThe rats were randomly divided into five groups: normal control (NC), model control (MC) groups, methotrexate (MTX), tripterygium glycosides tablet (TPT) and Xinfeng capsule (XFC) treatment groups. The adjuvant-induced arthritis model was established by intracutaneous injection of 0.1 mL Freund ' s complete adjuvant in the right paw of rats; the drugs were given 19 d after model establishment. The toe swelling degree (E), arthritis index (AI), pulmonary function, peripheral blood Treg levels, pathological changes of lung tissue and expression of Foxp3, TGF-β1, Smad3, Smad7 proteins in lung tissue were measured 30 d after drug administration.

RESULTSCompared to NC group, the levels of E, AI, alveolitis score, TGF-β1 and Smad3 were significantly increased (P <0.05 or P <0.01); maximum expiratory flow 25% of vital capacity (FEF25),50% maximal expiratory vital capacity flow (FEF50), maximum expiratory flow at 75% of vital capacity (FEF75), maximum mid-expiratory flow (MMF), force peak expiratory flow (PEF), CD4+ CD25+ Treg, Foxp3 and Smad7 were significantly decreased in MC group (P <0.05 or P < 0.01). Compared to MC group,the expression of E, AI, TGF-β1 and Smad3 were reduced, while FEF50, FEF75, MMF, PEF, Treg, Foxp3 and Smad7 were elevated in XFC group (P <0.05 or P <0.01). Compared to XFC group, the level of body mass,FEF25,FEF50, FEF75, MMF and Treg were lower in MTX and TPT groups (P <0.05 or P <0.01).

CONCLUSIONThere are inflamed joints and reduced pulmonary function in rats of adjuvant-induced arthritis. XFC can inhibit paw edema degrees, reduce arthritis response, and improve pulmonary function, which is associated with up-regulating expression of Treg and Foxp3, down-regulating the expression of TGF-β1 and adjusting TGF-β1/Smads signal pathway.

Animals ; Arthritis, Experimental ; drug therapy ; metabolism ; physiopathology ; Capsules ; Drugs, Chinese Herbal ; therapeutic use ; Forkhead Transcription Factors ; metabolism ; Lung ; drug effects ; pathology ; physiopathology ; Male ; Rats ; Rats, Wistar ; Smad3 Protein ; metabolism ; Smad7 Protein ; metabolism ; T-Lymphocytes, Regulatory ; metabolism ; Transforming Growth Factor beta1 ; metabolism

Objective:To observe the effect of supplementing vacuum sealing drainage with hyperbaric oxygen in the short term treatment of diabetic foot ulcers.Methods:A total of 156 persons diagnosed with diabetic foot ulcers were randomly divided into a control group and a treatment group, each of 78. Both groups received life guidance and active treatment to lower blood sugar and lipids, as well as anti-infection treatment guided by bacterial cultures. Both groups′ wounds were debrided. The wound was then covered with foam, sealed, and negative pressure of -75 to -100mmHg was applied during 1 week of drainage. Two courses of this treatment were applied. In addition, the treatment group received hyperbaric oxygen daily during the two weeks. The exposure pressure was incrased to 0.25MPa over 15min with 100% oxygen. That was inhaled in two 30min sessions with a 10min interval. The pressure then decompressed at a constant rate for 25 minutes. Wound healing, hemorheology, wound granulation tissue staining and any changes in TGF-β1 were observed before as well as after 7 and 14 days of the treatment.Results:The average wound size and symptom score of both groups had improved significantly after the treatment, with the largest effect in the treatment group during the first week. Both groups′ hemorheology had improved significantly after one week, but the treatment group′s improvement was greater. After 2 weeks, however, there was no significant difference in the average hemorheologic indicators for either group compared with before the treatment. Hematoxylin-eosin staining of the wound tissues showed that there were many inflamed cells before the treatment, with relatively little fresh granulation tissue or new blood vessels. After one week of treatment much new granulation tissue was observed under the microscope in both groups, with no significant difference between them. One week later, there was still much granulation tissue in the control group, but slightly less in the treatment group. The ave-rage post-treatment TGF-β1 protein levels in the wound tissues of both groups were significantly higher than before the treatment, but after two weeks the average TGF-β1 protein level had decreased significantly in the treatment group compared with the control group.Conclusions:One week of hyperbaric oxygen treatment can effectively improve the hemorheology of persons with diabetic foot ulcers, promote the proliferation of granulation tissue and fibroblasts, and increase the level of TGF-β1 protein in the wound tissues. However, the effects of hyperbaric oxygen treatment weaken gradually with time.

Objective:To evaluate the clinical effects of transperitoneal and retroperitoneal laparoscopic decortication in the treatment of simple renal cysts.Methods:PubMed, EMBASE, Cochrane Library, CNKI, VIP and WanFang databases were searched, All studies about comparing transperitoneal and retroperitoneal laparoscopic decortication for simple renal cysts were included. The evaluation indicators included operative time, intraoperative blood loss, postoperative drainage time, postoperative hospital stay, and complication rate. Statistical analysis of the data using RevMan 5.3 software.Results:A total of 14 control studies were included, 409 cases in the transperitoneal group and 452 cases in the retroperitoneal group. Meta-analysis demonstrated that compared with the transperitoneal group, the retroperitoneal group had shorter operation time ( MD=8.81, 95% CI: 3.79-13.82, P<0.01), less intraoperative blood loss ( MD=4.89, 95% CI: 1.40-8.38, P<0.01), and shorter postoperative hospital stay ( MD=0.60, 95% CI: 0.24-0.96, P<0.01). However, there were not significant differences between the two approaches in postoperative drainage time ( MD=-0.12, 95% CI: -0.26-0.03, P=0.13) and complication rate ( OR=1.47, 95% CI: 0.48-4.47, P=0.05). Conclusions:Compared with the transperitoneal, the retroperitoneal laparoscopic decortication has the advantages of short operation time, less intraoperative blood loss and short postoperative hospital stay. Therefore, retroperitoneal laparoscopic decortication is expected to be the first choice for the treatment of simple renal cysts.