Objective: To investigate the expression and clinical significance of LMTK3 in patients with prostate carcer. Methods: Immunohistochemistry was used to detect the expression of LMTK3 and ERα in 55 cases of prostate cancer tissues and 25 cases of benign prostatic hyperplasia tissues. The relationship between the expression of LMTK3 and ERα and clinicopathological parameters was evaluated by square test and Fisher exact test. The association between LMTK3 and ERα expression was analyzed with Pearson and Spearman rank correlation. Results: The results of immunohistochemistry demonstrated that the LMTK3 and ERα protein positive expression rate in 55 cases of prostate cancer tissues was 36. 36％ and 32. 73％, whereas was 64. 00％ and 56. 00％ in the benign prostatic hyperplasia, respectively, showed a significant difference of comparison within this result ( P ＜ 0. 05). The expression of LMTK3 in prostate cancer tissues was inversely related with the level of Gleason grade ( P＜0. 05), but no relation with the levels of age, TPSA, TNM stage and lymph node metastasis ( P＞0. 05). Moreover, the expression of ERα in prostate cancer tissues was oppositely related with the levels of gleason grade and TPSA ( P＜0. 05), but no relation with the levels of age, TNM stage and lymph node metastasis ( P＞0. 05). Pearson and Spearman rank correlation analysis revealed, to some extent, there was positively correlated with the two proteins ( r = 0. 296, P＜0. 05). Conclusion: The expression of LMTK3 in prostate cancer tissues was decreased compared with benign prostatic hyperplasia tissues and negatively related with the level of gleason grade. In some degree, there is a positively correlation between the LMTK3 and ERα proteins.

Objective To study the relationship between the initial expression level of glucocorticoid receptor (GR) and the treatment outcome in children with acute lymphoblastic leukemia (ALL). And to evaluate if the initial expression level of GR could be the prognostic factor for children with ALL.Methods Anti-GR-antibody was used to measure the GR expression level in the bone marrow samples from 48 newly diagnosed children with ALL with flow cytometry. Also the GR expression levels in the patients at complete remission were mea-sured. Fifteen randonmized samples from ALL patients in continuous complete remission (CCR) were measured in this study. The GR expre-ssion levels of 30 blood samples from children in control group were monitored. Results The initial GR expression level had no association with the results after therapy. The GR expression level in CR and CCR had no statistic difference compared with that in control group.Conclusions It is not clear yet if the initial GR expression level could be the prognostic factor in children with ALL. Monitoring dynamic changes of the GR expression level in children with ALL seems to be of no remarkable significance.

OBJECTIVETo determine the incidence and risk factors of HCV infection among heroin addicts who were receiving methadone maintenance treatment(MMT)in Dehong prefecture, Yunnan province.

METHODSAll heroin addicts who were HCV negative at the initiation of MMT in June 2005 through March 2012, in Dehong prefecture, were included in this cohort analysis. HCV incidence was calculated and related risk factors determined by using Cox proportional hazard regression model.

RESULTSA total of 2390 MMT clinic attendants were qualified for this cohort study by March 2012. 731(30.6%) of them had never received any follow-up HCV testing so were recognized as loss to follow-up. The other 1659 (69.4%) participants had received at least one follow-up HCV testing and were observed for a total of 3509.12 person-years(py). During this period 99 new HCV infections or HCV sero-converters were identified. The overall HCV incidence was 2.82/100 py and was 3.62/100 py for 2006, 5.36/100 py for 2007, 6.71/100 py for 2008, 2.56/100 py for 2009, 1.90/100 py for 2010, and 0.44/100 py for 2011, respectively. Results from multiple regression analysis, using Cox proportional hazard model, indicated that after controlling for confounding variables, those who were unemployed, being injecting drug users(IDUs)or HIV positive at entry into the MMT program were more likely to be newly infected with HCV or HCV sero-converted during the follow-up period than those who were peasants, non-IDUs or HIV negative at entry into the MMT program(HR = 2.02, 95% CI:1.18-3.48; HR = 9.05, 95% CI:5.49-14.93; HR = 2.12, 95% CI: 1.37-3.56), respectively.

CONCLUSIONThe incidence of HCV infection among MMT clinic attendants was decreasing since 2009 in Dehong prefecture. Those who were unemployed, injecting drug users and HIV positive were at higher risk of HCV infection.

Adolescent ; Adult ; Aged ; China ; epidemiology ; Cohort Studies ; Drug Users ; Female ; Hepatitis C ; epidemiology ; Humans ; Incidence ; Male ; Methadone ; therapeutic use ; Risk Factors ; Substance-Related Disorders ; drug therapy ; epidemiology ; virology

Objective To determine the adherence to and its determinants of methadone maintenance treatment (MMT) among heroin addicts in Dehong prefecture in Yunnan province from 2005 to 2009. Methods A dynamic cohort analysis was conducted with the time of treatment initiation as the time of cohort entry, to calculate the proportion of adhering to the treatment at different time points after initiation of the treatment, and to study the determinants of adherence.Results A total of 3758 had been treated. Among them, 95.8% were males, 75.8% aged between 20-39 years, 90.4% were peasants or unemployed, 57.0% were ethnic minorities, 35.0% were single and 55.5% were married with spouses, 43.9% were illiterate or educated at most primary school. The age of first using drugs averaged at 23.93 years. About 96.3% of the study subjects had used heroin and 21.7% were HIV-infected. The minimum time under MMT was less than 1 month and the maximum 61 months. The median methadone dose at first delivery was 25 ml, with the minimum 1 ml and the maximum 330 ml. By the end of the study or observation period, a total of 1798 patients had withdrawn from treatment and 1960 were still under treatment. The proportions of adherence to or still being under the treatment after 1,3,6,9, 12,24, 36,48 and 60 months treatment were 0.919,0.847,0.756, 0.690, 0.637, 0.519, 0.417, 0.360 and 0.321, respectively. Multiple regression analysis using Cox proportional hazard model indicated that withdraw from the methadone maintenance treatment was significantly associated with location of the treatment clinics, year of treatment initiation, marital status, HIV infection status, methadone dose of first delivery and the result of last urine test for heroin use. Conclusion MMT attendants in Dehong prefecture had a relatively high withdraw rate and low adherence rate. More efforts are needed to provide tailored counseling and education to MMT attendants, to provide family and community support, appropriate methadone dose at first delivery, and to better coordinate with local police department.

Objective To determine the incidence and risk factors of HIV infection among heroin addicts receiving methadone maintenance treatment(MMT)in Dehong prefecture,Yunnan province.Methods All heroin addicts who were HIV negative at the initiation of MMT in June 2005 and through June 2011,in Dehong prefecture were included in the cohort analysis.HIV incidence was calculated and related risk factors determined by using Cox proportional hazard regression model.Results A total of 3154 MMT clinic attendants were qualified for this cohort study.By June 2011,1023(32.4％)of them had never received any follow-up HIV testing so were thus referred as loss to follow-up.The other 2131(67.6％)members had received at least one follow-up HIV testing and were observed for a total of 4615.86 person-years.During the period,22 new HIV infections or seroconverters were identified,making the overall HIV incidence as 0.48/100 person-years.The HIV incidence was higher among those who were unemployed,never married,self-reported being injecting drug users(IDUs)and HCV positive at entry into the MMT program.None of those who were always negative on follow-up-urine-testing of morphine was discovered as HIV newly infected during the follow-up period.Data from multiple regression analysis under Cox proportional hazard model indicated that after controlling for confounding variables,non-IDUs at the entry point for the MMT program,were less likely to be HIV newly-infected or seroconverted than IDUs(HR=0.29,95％CI:0.11-0.76).Conclusion MMT prograqm in Dehong prefecture was demonstrated to be fairly effective in reducing HIV transmission through drug use.Those HIV negative attendants at the MMT clinic who were IDUs or keep using drugs during the treatment,were at higher risk of HIV seroconvertion.More efforts were needed to improve the follow-up and HIV testing programs for the MMT clinic attendants.

To increase the permeation and retention of isopsoralen in skin, and improve its bioavailability.Isopsoralen loaded nanostructure liquid carrier (IPRN-NLC) was prepared by high pressure homogenization andoptimized by orthogonal experiment with the encapsulation efficiency, drug loading and average particle size as the evaluation indexes. The in vitro transdermal permeation of IPRN-NLC was evaluated by Franze diffusion cells.The results showed that solid-liquid lipid ratio of optimum IPRN-NLC formulation was 7∶3,drug-lipid ratio of 1∶30, 1% surfactant. Under these conditions, IPRN-NLC had an average encapsulation of （90.25±0.73）%,drug loading of （1.56±0.27）% and an average particle size of (305±1.57) nm.The in vitro transdermal permeation results showed that IPRN-NLC could increase the amount of IPRN permeated though skin, with 3 times of the epidermal retention as compared with IPRN solution. From the results we can know that the IPRN-NLC prepared by high pressure homogenization can improve the permeation andaccumulation of IPRN in the skin, with wide application prospects in the field of transdermal administration.

Objectives: To construct a nomogram for prediction of intrahepatic cholangiocarcinoma (ICC) lymph node metastasis based on inflammation-related markers,and to conduct its clinical verification. Methods: Clinical and pathological data of 858 ICC patients who underwent radical resection were retrospectively collected at 10 domestic tertiary hospitals in China from January 2010 to December 2018. Among the 508 patients who underwent lymph node dissection,207 cases had complete variable clinical data for constructing the nomogram,including 84 males,123 females,109 patients≥60 years old,98 patients<60 years old and 69 patients were pathologically diagnosed with positive lymph nodes after surgery. Receiver operating characteristic curve was drawn to calculate the accuracy of preoperative imaging examinations to determine lymph node status,and the difference in overall survival time was compared by Log-rank test. Partial regression squares and statistically significant preoperative variables were screened by backward stepwise regression analysis. R software was applied to construct a nomogram,clinical decision curve and clinical influence curve,and Bootstrap method was used for internal verification. Moreover,retrospectively collecting clinical information of 107 ICC patients with intraoperative lymph node dissection admitted to 9 tertiary hospitals in China from January 2019 to June 2021 was for external verification to verify the accuracy of the nomogram. 80 patients with complete clinical data but without lymph node dissection were divided into lymph node metastasis high-risk group and low-risk group according to the score of the nomogram among the 858 patients. Log-rank test was used to compare the overall survival of patients with or without lymph node metastasis diagnosed by pathology. Results: The area under the curve of preoperative imaging examinations for lymph node status assessment of 440 patients was 0.615,with a false negative rate of 62.8% (113/180) and a false positive rate of 14.2% (37/260). The median survival time of 207 patients used to construct a nomogram with positive or negative postoperative pathological lymph node metastases was 18.5 months and 27.1 months,respectively (P<0.05). Five variables related to lymph node metastasis were screened out by backward stepwise regression analysis,which were combined calculi,neutrophil/lymphocyte ratio,albumin,liver capsule invasion and systemic immune inflammation index,according to which a nomogram was constructed with concordance index(C-index) of 0.737 (95%CI: 0.667 to 0.806). The C-index of external verification was 0.674 (95%CI:0.569 to 0.779). The calibration prediction curve was in good agreement with the reference curve. The results of the clinical decision curve showed that when the risk threshold of high lymph node metastasis in the nomogram was set to about 0.32,the maximum net benefit could be obtained by 0.11,and the cost/benefit ratio was 1∶2. The results of clinical influence curve showed that when the risk threshold of high lymph node metastasis in the nomogram was set to about 0.6,the probability of correctly predicting lymph node metastasis could reach more than 90%. There was no significant difference in overall survival time between patients with high/low risk of lymph node metastasis assessed by the nomogram and those with pathologically confirmed lymph node metastasis or without lymph node metastasis (Log-rank test:P=0.082 and 0.510,respectively). Conclusion: The prediction accuracy of preoperative nomogram for ICC lymph node metastasis based on inflammation-related markers is satisfactory,which can be used as a supplementary method for preoperative diagnosis of lymph node metastasis and is helpful for clinicians to make personalized decision of lymph node dissection for patients with ICC.

Research and development of classical prescription of Chinese medicine has become one of the hot spots in the research of traditional Chinese medicine (TCM), and the successful development of the primary standard is crucial to the application of the classical prescription of Chinese medicine. Primary standard of classical prescription is not only the benchmark to measure the quality of preparation of classical prescription, but also the material basis of whole prescription. The development and quality control mode of single component of western medicine is not suitable for the development of TCM preparation with integral medicinal function. Thus, it is very urgent to develop an exclusive research and development model for TCM. In order to break through the quality control technology of primary standard of classical prescription, and comprehensively and accurately elucidate the transmission rule of the component group value of medicinal materials-decoction pieces-primary standard of classical prescription with the present modern science and technology, the genetic polymorphism of TCM, extraction kinetics, total quantum statistical moment (similarity) method of fingerprint and supramolecular imprinting template were combined and applied to the development of primary standard of classical prescription. In this way, the development and quality control of TCM will be realized in a real sense and the development of classical prescription of Chinese medicine will be accelerated and promoted.

Objective: To analyze the clinical characteristics of children with Burkitt lymphoma (BL) and to summarize the mid-term efficacy of China Net Childhood Lymphoma-mature B-cell lymphoma 2017 (CNCL-B-NHL-2017) regimen. Methods: Clinical features of 436 BL patients who were ≤18 years old and treated with the CNCL-B-NHL-2017 regimen from May 2017 to April 2021 were analyzed retrospectively. Clinical characteristics of patients at disease onset were analyzed and the therapeutic effects of patients with different clinical stages and risk groups were compared. Survival analysis was performed by Kaplan-Meier method, and Cox regression was used to identify the prognostic factors. Results: Among 436 patients, there were 368 (84.4%) males and 68 (15.6%) females, the age of disease onset was 6.0 (4.0, 9.0) years old. According to the St. Jude staging system, there were 4 patients (0.9%) with stage Ⅰ, 30 patients (6.9%) with stage Ⅱ, 217 patients (49.8%) with stage Ⅲ, and 185 patients (42.4%) with stage Ⅳ. All patients were stratified into following risk groups: group A (n=1, 0.2%), group B1 (n=46, 10.6%), group B2 (n=19, 4.4%), group C1 (n=285, 65.4%), group C2 (n=85, 19.5%). Sixty-three patients (14.4%) were treated with chemotherapy only and 373 patients (85.6%) were treated with chemotherapy combined with rituximab. Twenty-one patients (4.8%) suffered from progressive disease, 3 patients (0.7%) relapsed, and 13 patients (3.0%) died of treatment-related complications. The follow-up time of all patients was 24.0 (13.0, 35.0) months, the 2-year event free survival (EFS) rate of all patients was (90.9±1.4) %. The 2-year EFS rates of group A, B1, B2, C1 and C2 were 100.0%, 100.0%, (94.7±5.1) %, (90.7±1.7) % and (85.9±4.0) %, respectively. The 2-year EFS rates was higher in group A, B1, and B2 than those in group C1 (χ²=4.16, P=0.041) and group C2 (χ²=7.21, P=0.007). The 2-year EFS rates of the patients treated with chemotherapy alone and those treated with chemotherapy combined with rituximab were (79.3±5.1)% and (92.9±1.4)% (χ²=14.23, P<0.001) respectively. Multivariate analysis showed that stage Ⅳ (including leukemia stage), serum lactate dehydrogenase (LDH)>4-fold normal value, and with residual tumor in the mid-term evaluation were risk factors for poor prognosis (HR=1.38,1.23,8.52,95%CI 1.05-1.82,1.05-1.43,3.96-18.30). Conclusions: The CNCL-B-NHL-2017 regimen show significant effect in the treatment of pediatric BL. The combination of rituximab improve the efficacy further.
Adolescent ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use* ; Burkitt Lymphoma/drug therapy* ; Child ; Disease-Free Survival ; Female ; Humans ; Lactate Dehydrogenases ; Lymphoma, B-Cell/drug therapy* ; Male ; Prognosis ; Retrospective Studies ; Rituximab/therapeutic use* ; Treatment Outcome