Objective: To investigate the epidemiological characteristics of measles in Jiaxing City of Zhejiang Province in different immunization program periods, so as to provide the evidence for improving prevention and control strategies of measles. Methods: Data of measles cases in Jiaxing City from 2005 to 2023 was collected through the Chinese Disease Prevention and Control Information System. Population, temporal, and regional distribution of measles during the periods of pre-expanded immunization program (from 2005 to 2007), expanded immunization program (from 2008 to 2010), and enhanced immunization program (from 2011 to 2023) were descriptively analyzed. Results: There were 3 997 measles cases reported in Jiaxing City from 2005 to 2023, with an average annual reported incidence of 4.66/105, showing a decreasing trend (P<0.05). The average annual reported incidence of measles during the periods of pre-expanded immunization program, expanded immunization program, and enhanced immunization program were 22.88/105, 7.24/105 and 0.83/105, respectively. The incidence of measles during different stages of immunization strategies all peaked from March to May. The highest reported incidence was 5.94/105 in Pinghu City and the lowest was 3.92/105 in Tongxiang City. The districts with the highest average annual reported incidence in the periods of pre-expanded immunization program, expanded immunization program, and enhanced immunization program were Nanhu District (31.10/105), Pinghu City (11.10/105) and Jiashan County (1.55/105), respectively. There was spatial clustering of measles in Jiaxing City during the period of pre-expanded immunization program (Moran's I=0.787, P<0.05), with a high-high cluster in Nanhu District. Conclusions The reported incidence of measles in Jiaxing City showed a decreasing trend from 2005 to 2023. There was a spatial cluster of measles incidence during the period of pre-expanded immunization program, but no significant clusters during the periods of expanded immunization program and enhanced immunization program.

Objective To investigate the effect of PNS on malignant melanoma and the expression of connexin32 in melanoma. Methods The spontaneous and experimental lung metastasis models of B16 melanoma were used to investigate the inhibitory effect of PNS on tumor growth and metastasis. The expression of connexin in melanoma were detected by immunohistoehemistry. Results (1) PNS can obviously inhibit the growth of B16 melanoma. The inhibition rate of the 480mg/kg PNS group was 50. 85%. (2) PNS can obviously inhibit the lung metastasis of B16 melanoma. The number of tumor colonies in lung of the 240 mg/kg PNS group and 480 mg/kg PNS group were lower than that in the negative control group. ( 3 ) The expression of connexin32 in melanoma was detected by immunohistochemistry:PNS could up-regulate the expression of connexin32 in membrane of melanoma. Conclusion PNS can inhibit malignant melanoma growth and metastasis and could also up-regulate the expression of connexin32 in membrane of melanoma.

Objective To evaluate the effect of flurbiprofen axetil pretreatment on the level of central β-endorphin in a rat model of incisional pain.Methods Fifty-four SPF male healthy Sprague-Dawley rats,aged 6-7 weeks,weighing 180-230 g,were divided into 3 groups (n=18 each) using a random number table:control group (group C),incisional pain group (group Ⅰ) and flurbiprofen axetil pretreatnent group (group FA).At 30 min before the model of incisional pain was established,fat emulsion 1 ml was injected via the caudal vein in group Ⅰ,and flurbiprofen axetil 6 mg/kg (diluted to 1 ml in fat emulsion) was injected via the caudal vein in group FA.The mechanical paw withdrawal threshold (MWT) was measured at 1 day before establishment of the model and 1,6 and 12 h after establishment of the model (T1-3).The rats were sacrificed after measurement of pain threshold at T1-3,and the lumbar enlargement segment of the spinal cord and hypothalamic arcuate nucleus specimens were obtained for determination of β-endorphin content (by enzyme-linked immunosorbent assay) and β-endorphin expression (by immunohistochemistry).Results Compared with group C,the MWT was significantly decreased at T1-3 in I and FA groups,the content and expression of β-endorphin in the spinal cord were significantly decreased at T2,3,and the content and expression of β-endorphin in the hypothalamic arcuate nucleus were increased at T1 in group Ⅰ,and the content and expression of β-endorphin in the spinal cord and hypothalamic arcuate nucleus were significantly increased at T1-3 in group FA (P＜0.05).Compared with group Ⅰ,the MWT was significantly increased,and the content and expression of β-endorphin in the spinal cord and hypothalamic arcuate nucleus were increased at T1-3 in group FA (P＜0.05).Conclusion The mechanism by which flurbiprofen axetil pretreatment produces analgesic effect may be related to the increased level of central β-endorphine in a rat modal of incisional pain.

Objective To evaluate the value of medical treatment in the management of SAP.Methods From January 2000 to December 2011,a total of 1064 cases out of 931 SAP patients were admitted and retrospectively analyzed.The etiologies,severity score,complication rates,therapies,effectiveness and costs of those SAP cases were summarized.Results There were 559 males and 372 females with a mean age of (51 ± 15)years old.The main cause was biliary tract disease (58.3％),followed by fat-rich diet (31.2％),hyperlipidemia (13.6％) and alcohol (7.1％).At the time of admission,95.5％ of SAP patients presented with level D disease according to Balthazar CT severity index,26.0％ had a Ranson score ≥3 and 30.1％ had an APACHE Ⅱ score ≥ 8.There were 42.7％ cases complicated with systemic inflammatory response syndrome (SIRS).Acute lung injury and acute respiratory distress syndrome (ARDS),acute kidney injury,shock or heart failure,acute liver dysfunction,and diffuse intravascular clotting (DIC)occurred in 24.0％,8.1％,5.4％,3.2％,and 1％ of all patients,respectively.Other complications of SAP included abdominal cavity bleeding (n =17),pseudocyst bleeding (n =9),pancreatic abscess (n =78) and gastrointestinal fistula (n =33).Totally 25 (2.3％) patients died in hospital and 36 (3.4％) patients were discharged against advice,with an overall treatment success rate of 94.3％.The mean hospital stay was (23.7 ± 19.2) d,and the average cost was 52.3 thousands of RMB.Conclusions A comprehensive treatment pathway relying on medical treatment,focusing on organ function support and assisted by miniinvasive intervention may improve the treatment success rate of SAP,which is worth of further application.

The consecutive data of 822 senior public officials in Chengdu undergoing health checkup from 2011 to 2016 were retrospectively reviewed.Among them,56 new cases of diabetes was diagnosed with a cumulative incidence of 6.81％.Fifty six age-and sex-matched healthy subjects served as controls,the risk factors of new-onset diabetes were analyzed with multivariate logistic regression.The results showed that BMI (OR =1.82,95％ CI:1.27-2.59,P =0.00) and fasting plasma glucose (OR =13.63,95％ CI:2.71-68.43,P =0.00) were independent risk factors of new-onset diabetes in senior public officials.

Objective:To explore the dosimetric differences of different dose accumulation method for brachytherapy combined with external beam radiation therapy (EBRT) of cervical cancer and establish clinical prediction models for radiation-induced late rectal injury (RLRI) after radiotherapy.Methods:A retrospective analysis was conducted for the clinical data of patients who received radical concurrent chemoradiotherapy (CCRT) for cervical cancer in the Department of Oncology of the Affiliated Hospital of North Sichuan Medical College from January 1, 2020 to November 30, 2021. EBRT combined with brachytherapy was employed for the patients, and dose assessment was performed in two means: the direct accumulation using equivalent dose in 2-Gy fractions (EQD2) and deformable image registration (DIR)-based dose accumulation of 3D planning images. The toxicity criteria of the Radiation Therapy Oncology Group were adopted as the RLRI grading criteria. The prediction models of RLRI using both dose assessment method were constructed. The areas under the receiver operating characteristic (ROC) curves were calculated to assess the predictive accuracy of the different dose assessment method.Results:In the case of brachytherapy, the D95% and D90% EQD2 doses to high-risk clinical target volumes (HR-CTVs) were 2.18 and 2.92 Gy higher respectively and the D2 cm 3, D1 cm 3, and D0.1 cm 3 EQD2 doses to the rectal were 1.74, 2.28, and 2.26 Gy higher, respectively compared to DIR-based dose accumulation ( t = 3.82, 5.21, 4.58, 5.17, 2.05, P < 0.05). For EBRT combined with brachytherapy, the D2 cm 3, D1 cm 3, and D0.1 cm 3 EQD2 doses to the rectal were 6.22, 7.61, 9.56 Gy higher than DIR-based doses, respectively, and the dosimetric differences were statistically significant ( t = 9.40, 10.59, 7.87, P < 0.001). The joint prediction model yielded an area under the ROC curve of 0.788. The sensitivity and specificity of the optimal cut-off value were 0.850 and 0.660, respectively. Furthermore, the Hosmer-Lemeshow goodness-of-fit tests indicated high goodness-of-fit ( P > 0.05). The prediction model for DIR-based dose accumulation of traditional predictors yielded areas under the ROC curves for D2 cm 3 and D1 cm 3 to the rectal of 0.784 and 0.763, respectively. The sensitivities of the optimal cut-off values were 0.850 and 0.750, respectively, and the specificities were 0.679 and 0.717, respectively. Conclusions:There are dosimetric differences between the direct dose accumulation using EQD2 and DIR-based dose accumulation of 3D planning images for brachytherapy combined with EBRT. Both the joint prediction model and the DIR-based dose accumulation of D2 cm 3 and D1 cm 3 to the rectal are effective in predicting RLRI. Given the complex calculation of the joint prediction model, it is recommended that RLRI should be predicted through DIR-based dose accumulation of D2 cm 3 and D1 cm 3 to the rectal clinically.

Objective:To explore the efficacy and safety of pretreating with oral immunosuppressants alone for ABO-incompatible (ABOi) renal transplant recipients with an initial isoagglutinin titer <1: 8.Methods:From September 2014 to October 2019, 16 cases of ABOi renal transplantation pretreated with oral immunosuppressants alone and 32 cases of ABO-compatible (ABOc) renal transplantation were recruited for comparing the inter-group incidence of graft function, acute rejection, infection and recipient and allograft survival.Results:The 16 ABOi renal transplantations were AB-to-A(n=4), AB-to-B(n=3), A-to-B(n=1), B-to-A(n=4), A-to-O(n=2) and B-to-O(n=2). The initial isoagglutinin titer (IgM & IgG) and that on the date of transplantation were both ≤1∶8. The median follow-up period was 495(90-1696) days. One patient in ABOi group underwent allograft nephrectomy due to hyperacute rejection. The graft survival rates were 93.75%(15/16) and 100%(32/32) in ABOi and ABOc groups respectively. No recipient died. No significant inter-group difference existed in postoperative renal function after 6 months (serum creatinine μmol/L: 114.30±28.13 vs. 106.08±23.80, P=0.38; eGFR ml/min/1.73 m 2: 64.93±19.60 vs. 82.34±22.58, P=0.13). In ABOi group, there were 3 episodes of postoperative infection, 2 episodes of acute rejection within 2 weeks (including 1 episode of hyperacute rejection) and 1 episode of acute rejection after 2 weeks; 5 episodes of postoperative infection, no acute rejection within 2 weeks and 5 episodes of acute rejection after 2 weeks in ABOc group. No significant inter-group difference existed in the incidence of infection or rejection ( P>0.05). Conclusions:Using oral immunosuppressant alone is both safe and feasible for ABOi renal transplantation recipients with an initial isoagglutinin titer ≤1∶8. It may greatly simplify the pretreatment scheme for those with a low initial isoagglutinin titer and lower the incidence of complications.

Gelatin microspheres were discussed as a scaffold material for bone tissue engineering, with the advantages of its porosity, biodegradability, biocompatibility, and biosafety highlighted. This review discusses how bone regeneration is aided by the three fundamental components of bone tissue engineering-seed cells, bioactive substances, and scaffold materials-and how gelatin microspheres can be employed for in vitro seed cell cultivation to ensure efficient expansion. This review also points out that gelatin microspheres are advantageous as drug delivery systems because of their multifunctional nature, which slows drug release and improves overall effectiveness. Although gelatin microspheres are useful for bone tissue creation, the scaffolds that take into account their porous structure and mechanical characteristics might be difficult to be created. This review then discusses typical techniques for creating gelatin microspheres, their recent application in bone tissue engineering, as well as possible future research directions.
Tissue Engineering/methods* ; Tissue Scaffolds/chemistry* ; Gelatin/chemistry* ; Microspheres ; Bone and Bones ; Porosity