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Objective@#To explore the pre-exposure prophylaxis (PrEP) awareness, willingness, uptake patterns, barriers and needs among Chinese student men who have sex with men (MSM), so as to provide relevant evidence for targeted interventions with PrEP.@*Methods@#A proportional sampling method was used to conduct a cross sectional survey of MSM aged 16 years and older residing in 21 provinces, municipalities, and autonomous regions in mainland China between October 20 and December 20, 2021, to collect information on demographic and sexual behavioral characteristics, and 923 students of them were selected as the subjects of this study. The chi-square test and Fisher s test were used for univariate analysis, followed by multivariate Logistic regression to analyze the influencing factors of PrEP awareness and uptake.@*Results@#According to the cascade analysis method, the awareness, willingness, uptake and adherence rates of PrEP among the student MSM were obtained as 88.95%, 67.36%, 13.20% and 45.21 %, respectively. HIV testing more than once in the last 3 months, and all of them were aware of the HIV test results of their sexual partners, and those with high frequency of condom use had a higher rate of awareness ( OR =2.32, 1.79, 1.69, P <0.05). Willingness rates were higher for those from the pilot city, using substances, and HIV testing more than once in the last 3 months ( OR =2.13, 1.65, 1.69, P <0.05). Higher rates of uptake were found among those from high risk and pilot areas, presence of commercial sex, substance use, and high literacy ( OR =5.60, 3.54,2.81, 1.92, 4.54, P <0.05). Adherence rates were higher among those who used one pill per day or both ( OR =12.77, 13.26, P <0.05). The barriers and needs faced by student MSM were primarily personal concerns about medication side effects, preventative effects, and confidence in sexual behavioral styles, and the high cost of medication and related service costs.@*Conclusions@#The student MSM population in China is characterized by high awareness, low willingness, low uptake, and low adherence to PrEP. Targeted interventions should be considered and tailored by the departments to facilitate PrEP promotion among student MSM.
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Objective To measure the comprehensive geriatric assessment (CGA) in elder non-Hodgkin's Lymphoma (NHL) patients in a cross-sectional study;to compare the differences between Eastern Cooperative Oncology Group (ECOG)-performance status (PS) and CGA.Methods CGA stratification included the following 3 instrument assessments:activity of daily living (ADL);instrumental activity of daily living (IADL);comorbidity score according to the modified cumulative illness rating score for geriatrics (MCIRS-G).According to CGA and age,NHL patients,aged ≥60 years,were classified as "fit","unfit" and "frail" groups.ECOG-PS was evaluated and compared with CGA.Results According to CGA,51.6％ senior NHL patients (33 cases) were classified as "fit",12.5％(8 cases) as " unfit" and 35.9％ (23 cases) as "frail".Several comorbidities were observed in majority patients,such as cardiovascular disease,diabetes nellitus and hypertension.In the "younger aged" patients between 60 to 64ys,25％(3/12) was considered as "frail".However,this proportion increased to 42.9％ (6/14) in patients older than 80ys.Moreover,impaired CGA was observed in 38.9％(21/54) of ECOG-PS ≤1 patient.Conclusions Impaired CGA is as common as approximately half in elderly NHL patients and more than one third even in ECOG-PS ≤ 1 patients.ECOG-PS may underestimate the impaired fitness function in elder NHL patients.
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TCM higher education has cultivated a large number of high-level TCM professionals in the past sixty years.Against the backdrop of social progress in China,a system of cultivating faculty of TCM higher education has been put in place that features an organic link-up between college,after graduation and continuing education.Academic community serves as a starting point in the system.This paper mainly illustrates our understanding of academic community,life-long education through connecting the three phases and its implementation.
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Objective To study the time of monoclonal immunoglobulinemia of undetermined significance (MIUS) transforming into multiple myeloma (MM),and the changes of immunoglobulin level and the clinical features.Methods A retrospective analysis was conducted in 22 patients with MM.According to the follow-up of immunoglobulin levels,patients were divided into formal and informal groups.The changes in immunoglobulin,serum calcium,hemoglobin and creatinine concentrations,and the time of MIUS transforming into MM were detected,and the impact of treatment on the prognosis was analyzed.Results The median age at diagnosis as MIUS was 69 years in formal group and 79 years in informal group.The median time for MIUS transforming into MM was 9.8 years in formal group and 1.3 years in informal group (P 0.006).The initial average concentration of immunoglobulin in patients with MIUS was 12.5 g/L (2.0-31.6 g/L) in informal group and 11.5 g/L (2.8-29.0 g/ L) in formal group (P＞0.05).There were no significant differences in levels changes of immunoglobulin,serum calcium,hemoglobin,creatinine index before and after the outcome.The transfer time for MIUS transforming into multiple myeloma was 9.8 years and 9.7 years,and the survival time was 13.6 years and 13.5 years in patients with versus without treatment (P＞ 0.05).Conclusions Regular formal follow up can accurately assess the transfer time for MIUS to MM,and the transfer time is longer in formal groups than in informal group.The changes in concentrations of immune globulin,serum calcium,hemoglobin,and creatinine cannot serve as indicators for outcome evaluation.Drug treatment neither delays the progress time of MIUS to MM nor reduces the complications of MM and nor prolongs the survival time.
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Objective:To evaluate the effectiveness and treatment feature of maxillary incisor extraction in orthodontics.Methods:9 patients underwent orthodontic treatment with maxillary incisor extraction,5 female and 4 male,with an average age of 1 7.2 years at the start,were included.5 patients were treated by extraction of both upper incisors and lower first premolars,4 by extraction of the abnor-mal incisor and the first premolars in the other three quadrants.Cephalometric and Bolton index analysis were carried out.Results:Sat-isfactory treatment results were observed in all patients.Before treatment the predicted Bolton index of the patients of the anterior ratio and the overall ratio were 80.1 4% and 91 .3%,after orthodontic treatment 78.68% and 90.28%,respectively.Cephalometric analysis showed that U1 -NA(mm),U1 -NA,L1 -NB(mm),L1 -NB,U1 -SN,L1 -MP,UL-E and LL-E were decreased(P <0.05).Conclu-sion:Individual treatment plan based on Bolton index analysis and the corresponding techniques and methods,the patients with abnor-mal upper incisors can be effectively treated with the extraction of maxillary incisors.
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Objective To evaluate the indications and effectiveness of lower incisor extraction in orthodontics.Methods Twenty-three adult patients with lower incisor extraction were included in the study.The cases consisted of 14 female and 9 male patients with an average age of 23.2 years at the start.One single lower incisor was extracted in 17 patients and the other tow upper premolars were extracted in 6 patients.Cephalometric and casts analyses were carried out.Results Total treatment time was 13-23 months.All extraction space was closed after the treatment.All patients achieved satisfactory treatment results,with normal overbite and overjet and stable occlusal relationship.There were no significant changes before and after treatment on cephalometric analysis.The intercanine width was reduced by from pretreatment to posttreatment [(26.89--2.89) mm vs (23.92-t-1.54) mm (P＜0.05)].Conclusions The intercanine width is reduced after lower incisor extraction.In order to achieve satisfactory clinical effect,we should carefully select cases and pay attention to the corresponding techniques and methods.
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BACKGROUND:Many studies have shown that matrix metal oproteinases 1, 3, 9 and 13 play an important role in articular cartilage degeneration and destruction, but there is less special research on the articular synovium. OBJECTIVE:To observe the effect of long-distance running on the expressions of matrix metal oproteinases 1, 3, 9 and 13 in the synovium. METHODS:Fifteen male Wistar rats were divided into three groups:control group, tablet group and uphil group. Rats in the control group received ordinary captivity;rats in the tablet group ran on the horizontal treadmil (0°) at the speed of 1 km/h for 1 hour daily, and lasted for 45 days;rats in the uphil group daily ran on the horizontal treadmil (0°) at the speed of 1 km/h for 1 hour, and lasted for 15 days, and then the rats ran on the uphil treadmil (+20°) at the speed of 1 km/h for 1 hour daily and lasted for 30 days. The knee joint synovium injury models with varying degrees were established. The dual hind knee joints were obtained after modeling for paraffin-embedded. Then the overal sagittal slices were obtained for hematoxylin-eosin staining and immunohistochemical staining, and the experimental results were observed and analyzed. RESULTS AND CONCLUSION:After long-distance running, the expression of matrix metal oproteinases 1 in synovium of the tablet group and uphil group was increased when compared with that of the control group (P0.05). There was no significant difference in matrix metal oproteinases 3 expression (P>0.05). The expressions of matrix metal oproteinase 9 and matrix metal oproteinase 13 in synovium were in gradient increasing state (Pexercise can influence the normal physiological structure of rat knee joint synovium by changing the expression of matrix metal oproteinases.
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Center for faculty development (CFD) in Shanghai University of Traditional Chinese Medicine is one of the earliest agencies of the university targeted for professional development of the teachers.In recent years,CFD took learning community as one of the main way to promote teacher professional development and made in-depth researches.This paper discussed on organization and form of community as well as teachers' training and assessment.
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This article elaborated on professional development objectives of traditional Chinese medicine (TCM) clinical teachers and analyzed on the existing teaching ability development foundation of clinical teachers from the trend of clinical practice teaching development.Meanwhile,the article proposed the basic connotation of TCM clinical teachers' teaching ability development based on the construction of the module of clinical teachers' professional ability development and the opening learning environment.
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Elaboration on the importance of pedagogical content knowledge (PCK) in promoting the teachers' professional development was conducted based on the concept of pedagogical content knowledge (PCK) and from the aspects of the external environment,promotion of teachers' independent development as well as changes in teaching philosophy and the teachers' development value.Corresponding measures were proposed according to the reality of higher education of Chinese medicine.
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Objective To observe the expression of nuclear factor-kappa B(NF-κ3)and monocyte chemnattractant protein-1(MCP-1),and the infiltration of mononuclear macrophage CD68 in lupus nephritis (LN).The association between NF-κB,MCP-1 and MΦ with kidney pathology and clinical manifestations is explored.MethodsNF-κB,MCP-1 and MΦ in renal biopsy specimens from 49 cases of LN were detected using immunohistochemical techeniques.Forty-nine cases of renal tissues were examined for NF-κB by in situ hybridization.The relationship between NF-κB,MCP-1 and MΦ with kidney pathology and clinical manifestations were analyzed.Results ①Compared with the control group ,the expression of NF-κB,MCP-1 and MΦ in LN was significantly higher(P＜0.01).The expression of MCP-1 positively correlated with MΦinfiltration and NF-κB(P＜0.01)in glomeruli and renal tubule and renal interstitium of LN.The expression of NF-κB,MCP-1 and the infiltration of MΦ in LN Ⅳ was significandy higher than non LN Ⅳ and the control group(P＜0.01,P＜0.05).There was no significant difference between renal NF-κB positive group and negative groups in the degree of the immunohistochemical and in situ hybridization examination(P＞0.05).②The histological activity index,urine protein volume(24 h)and serum creatinine in LN were significantly higher than the control group(P＜0.01),and the expression of NF-κB in LN was correlated with histological activity index,urine protein volume(24 h)and serum creatinine(P＜0.01,P＜0.01,P＜0.05).MCP-1 and CD68 expression in LN were correlated with histological activity index and urine protein volume(24 h),but not correlated with serum creatinine(P＞0.05).Conclusion NF-κB induced MΦ by activating MCP-1 may be one cause of kidney injury of LN.NF-κB signal pathway may act as a new therapeutic target for MΦinfiltration and proliferation inhibition in kidney.
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Objective To explore the clinical and biological characteristics and treatment effect of acute myeloid leukemia (AML) in elderly patients. Methods The clinical data of 62 patients over 60 years old with AML were retrospectively analyzed, and they were compared with those of 60 younger adult patients (18-59 years old) at the same period. Results In elderly patients, the complete remission (CR) rate was 27. 7% and the overall effective rate was 44.7%, which were lower than those of younger adult patients (74.1% and 87.9 %, 1-espectively, P＜0.01). The early death rate was 19.0% and the mortality rate during the first two induction chemotherapy was 29. 3% in the elderly, which were higher than those of younger adult patients (3. 3% and 6.7%, 1-espectively,P＜0.01). The 27.4% of elderly patients were diagnosed as myelodysplastic syndrome (MDS)-transformed AML, which were more than that of younger adult patients (10.0%, P＜0.05), and they had lower CR rate than those without MDS (P＜0. 05). The 28.2% of elderly patients had lymphoid antigen positive AML and 71.8% of patients showed CD34+ which were higher than those of younger adult patients (8. 1% and 48.6%, respectively, P＜0. 05), and they had lower CR rate than those of lymphoid antigen negative and those of CD34- AML (P＜0. 05). Elderly patients had less favorable and more unfavorable karyotypes than younger adult patients (45.7 % and 15.4 %, P＜0. 05). Conclusions The elderly patients with AML have more unfavorable prognostic factors than younger adult patients. They have lower CR rate and higher mortality rate. There are many specialties in elderly patients and the treatment strategy should be made more individually.
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Objectives To evaluate the efficacy of rituximab combined with chemotherapy in the treatment of diffuse large B-cell lymphoma (DLBCL) and the relationship of clinical prognosis with the International Prognostic Index (IPI) by the using rituximab in autologous peripheral stem cell transplantation (APBSCT) for the patients of DLBCL. Methods 21 patients with DLBCL, 11 patients of them were at IPI low risk, and 3 patients were IPI at low intermediate risk, 3 patients were at IPI high intermediate risk, 4patients IPI high risk. Rituximab combined with CHOP regimen (cyclophosphamide, adriamycin, vincfistine and prednisone) was given for 4～8 courses. 5 patients received APBSCT. The mobilizing regimen was rituximab combined with cyclophosphamide(CTX) and etoposide(VP16). The conditioning regimen were CBV(CTX combined with VP16 and carmustine). Results In 21 patients, the complete response rate was 61.9 %,with overall response rate 90.5 %. 2-year progression free survival was (69.74±10.43)%. 2-year overall survival was (84.44:1:8.35) %. The complete response rate was 92.9 % and overall response rate was 100 % in the patients IPI≤2. The overall response rate was 71.4 % in the patients with IPI≥3. The complete response rate was higher in the patients with IPI≤ 2 (P＜0.01). The amount of mononuclear cells (M NC) in harvest were 7.34 (4.6～8.53)×108/kg. The CD+34 cells in harvest were 8.82 (2.1～10.34)×1O6/kg. The mean time of neutrephil recovering to 0.5×109/L after APBSCT was +9 day. The mean time of platelet recovering to 20×109/L after APBSCT was +12 day. The major adverse reaction were infusion related response (14.3 %) and hematological toxieities. Conclusion The efficacy of rituximab combined with chemotherapy in the treatment of DLBCL is effective, The complete response rate was higher in the patients with IPI≤2 than in the patients with IPI≥3.Using rituximab in mobilizing regimen, all patients had harvested enough CD+34 cells. Rituximab given at +1day did not affect the hematopoiesis reconstruction.
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<p><b>OBJECTIVE</b>To develop monoclonal antibodies against the catalytic subunit of human telomerase hTERT for its expression detection of human tumors.</p><p><b>METHODS</b>A dominant epitope in hTERT (peptide hTERT(9))was automatically synthesized based on Fmoc method, and was used to immunize BALB/c mice. Hybridomas were generated and screened by ELISA for specific monoclonal antibodies, and the characterization of which were performed by Western blotting and immunohistochemical staining.</p><p><b>RESULTS</b>Antigenic peptide hTERT(9) was synthesized and confirmed by MALDI-TOF-MS and HPLC analysis. Three hybridoma cell lines secreting anti-hTERT(9) antibodies designated as H4, G8 and A11 were established after primary screening and consequent three rounds of limited dilution. Both of H4 and G8 were IgM, while A11 was IgG1 in isotyping. The competitive assay showed that the antibodies were hTERT(9) specific, and the affinity of G8 was stronger than that of H4 and A11 assayed by affinity ranking. However, in Western blotting, both of H4 and G8 stained an about 123 000 protein band with HeLa and 293 cell extracts but not with normal 2BS cells. Besides, positive staining presented in the nucleus of HeLa, while 2BS was non-reactive immunohistochemically. The sections from paraffin-embedded blocks of 127 cases of human cancer, 40 of precancerous and 19 of benign tumors were in situ stained by G8 antibody, the results showed that the human cancer tissues were 80.31% (102/127) positive in specific nuclear reaction, on the contrary, only a minority of precancerous lesions present weak positive (17.5%, 7/40), and negative in benign tumors (0/19).</p><p><b>CONCLUSIONS</b>The monoclonal antibodies developed against synthetic peptide were hTERT-specific and could recognize both the native and the denatured form. Thus their use in immunoblotting or immunohistochemistry for detecting the telomerase hTERT expression of cancer cell and tissues was promising.</p>
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Animals , Female , Humans , Mice , Antibodies, Monoclonal , Allergy and Immunology , Binding, Competitive , Blotting, Western , Methods , Catalytic Domain , DNA-Binding Proteins , HeLa Cells , Immunohistochemistry , Methods , Mice, Inbred BALB C , Neoplasms , Pathology , Telomerase , Allergy and ImmunologyABSTRACT
Objective To investigate the relation between expression of P73 , P53, P21 waf1 ,PCNA protein in the different diseases of gastric mucosa and the malignant transformation of gastric mucosa epithelium and their correlation in gastric carcinoma and the relation to histological type , lymph node metastases, depth of invasion of gastric mucosa ,TNM stage in gastric carcinoma. Methods Immunohistochemical staining(S-P method) was used to detect the expression of P73, P53, P21 waf1 , PCNA protein in 39 cases of gastric carcinoma, 17 cases of chronic atrophic gastritis and 40 cases of chronic inflammatory polyp and a statistical analysis was made according to clinicopathogical data. Results The positive rate of P73 protein expression in gastric carcinoma was remarkably higher than that in chronic inflammatory polyp and that in chronic atrophic gastritis( P 0.05). there was negative correlation between expression of P21 waf1 protein and TNM stage, lymph node metastases( P 0.05). Conclusion Probably high expression of P73 gene is one hot spot gene alteration of gastric carcinoma and expression of P73 protein in gastric carcinoma may play an important role in the course of cancerous development. As one tumor suppressor gene, P73 has its tissular specificity. Cooperative expression of P73 and PCNA,and the correlation of expression to P73 and P53 、P21 waf1 protein could be an important index to judge the malignant transformation and clinicopathological process and prognosis. P21 waf1 may be an early signal of gastric carcinoma or one of indexes to judge prognosis.