Based on current national policies, regulations, standards, relevant literature, and departmental experience regarding the protection against radionuclides in China, this study provides a brief overview of key issues in the management of hospital wards for patients with internal radionuclide contamination. The discussion covers the detection of internal contamination, general requirements for internal radionuclide contamination wards, and inpatient management. In addition, the study explores in depth the daily responsibilities, protective measures, and management protocols for both healthcare staff and patients within such wards. This article summarizes a framework for the construction of internal radionuclide contamination wards, along with specific plans and detailed role-based guidelines. These results provide a reference for the management of hospital wards for patients with internal radionuclide contamination.

Objective To evaluate the value of postoperative radiotherapy (PORT) in patients with stage ⅢA-N2 non-small cell lung cancer who received complete resection and chemotherapy. Methods Patients with stage ⅢA-N2 non-small cell lung cancer who received complete resection and chemotherapy were chosen from the SEER Research Plus Database [17 Registries, November 2012 Submission (2000-2019)]. The patients were divided into a PORT group and a non-PORT group according to whether the PORT was used. To balance baseline characteristics between non-PORT and PORT groups, R software was used to conduct a propensity score matching (PSM) with a ratio of 1 : 1 and a matching tolerance of 0.01. Both the Cox regression analysis and Kaplan-Meier survival analysis were conducted to evaluate the value of PORT in terms of overall survival (OS) and disease-specific survival (DSS). Results In total, 2468 patients with stage ⅢA-N2 non-small cell lung cancer were enrolled, including 1078 males and 1390 females with a median age of 65 (58-71) years. There were 1336 patients in the PORT group, and 1132 patients in the non-PORT group. Cox regression analysis showed that PORT was not significantly associated with OS (multivariate analysis: HR=1.051, 95%CI 0.949-1.164, P=0.338) and DSS (multivariate analysis: HR=1.094, 95%CI 0.976-1.225, P=0.123). No statistical difference was found in the OS or DSS between non-PORT group and PORT group after PSM analysis (P＞0.05). Conclusion PORT does not have a survival benefit for patients with stage ⅢA-N2 non-small cell lung cancer who received complete resection and chemotherapy.

OBJECTIVE：To systematically evaluate the efficacy and safety of pe ficitinib for treating rheumatoid arthritis （RA），and to provide evidence-based reference for the clinical treatment of RA. METHODS ：Retrieved from PubMed ，Embase， The Cochrane Library ，CJFD，VIP and Wanfang database during from their establishment to September 2019，randomized controlled trials （RCTs）about the efficacy and safety of Peficitinib （trial group ）versus placebo （control group ）in the treatment of RA were collected. The risk of bias assessment tool provided in Cochrane System Evaluator Manual 5.1.0 was used to evaluate the quality after data extracted from clinical studies which met the inclusion criteria. Meta-analysis of the efficacy [the proportion of patients who met the American College of Rheumatology 20％ improvement criteria （ACR20），ACR50，ACR70，the proportion of the patients with 28 joint disease activity index ＜2.6 calculated by erythrocyte sedimentation rate （DAS28-ESR＜2.6），the proportion of patients with 28 joint disease activity index ＜2.6 calculated by C-reactive protein （DAS28-CRP＜2.6），etc.] and safety（incidence of total ADR ）was performed by using Stata 16 statistical software. RESULTS ：Totally 5 RCTs were included ， 药学。E-mail：hyl3160131@163.com 5.11），P＜0.001]，150 mg[RR＝3.52，95％CI（1.78，6.96），P＜ 0.001]}，ACR70{total [RR ＝2.51，95％CI（1.52，4.14），P＜0.001]，100 mg[RR＝3.50，95％CI（1.62，7.58），P＝0.001]，150 mg [RR＝4.59，95％CI（1.47，14.30），P＝0.009]}，DAS28-ESR＜2.6{total [RR ＝4.83，95％CI（3.20，7.28），P＜0.001]，100 mg[RR＝ 5.37，95％CI（2.68，10.77），P＜0.001]，150 mg[RR＝7.44，95％CI（3.78，14.65），P＜0.001]} and DAS 28-CRP＜2.6{total [RR ＝3.41， 95％CI（2.65，4.39），P＜0.001]，100 mg[RR＝4.00，95％CI（2.67，5.99），P＜0.001]，150 mg[RR＝4.45，95％CI（2.99，6.63），P＜ 0.001]} in trial group were significantly higher than control group ，with statistical significance. In term of safety ，there was no statistical significance in the incidence of total ADR [RR ＝1.05，95％ CI（0.94，1.16），P＝0.395] between 2 groups. CONCLUSIONS：For the treatment of RA ，100 mg or 150 mg peficitinib once per day is superior to placebo in terms of ACR 20， ACR50 and ACR 70，DAS28-ESR＜2.6，DAS28-CRP＜2.6； the adverse events are mild and tolerable and it may be a new treatment option for RA.

OBJECTIVE：To systematically evaluate the efficacy and safety of guselkumab in the treatment of moderate-to- severe plaque psoriasis ，and to provide evidence-based reference for the clinical treatment. METHODS ：Retrieved from PubMed ， Embase，Cochrane Library ，CNKI，VIP，Wanfang database during inception to Oct. 2019，randomized controlled trials （RCTs） about guselkumab versus placebo/positive control in the treatment of moderate-to-severe plaque psoriasis were collected. After literature screening and data extraction ，quality evaluation was performed by using the bias risk evaluation tool recommended by the Cochrane System evaluator manual 5.1.0. Meta-analysis was performed by using Stata 16.0 software. RESULTS ：Eight RCTs with a total of 3 488 patients were included. The results of Meta-analysis indicated that the proportion of patients who achieved 90％ reduction or more from baseline of psoriasis area and severity index （PASI）in guselkumab group was significantly higher than that placebo group [RR ＝26.72，95％CI（15.98，44.70），P＜0.001]，adaliumumab group [RR ＝1.45，95％CI（1.32，1.59）， P＜0.001] and secukinumab group （P＜0.000 1）. The proportion of patients with Investigator ’s Global Assessment （IGA）score of 0 or 1 in guselkumab group was significantly better than placebo group [RR ＝11.15，95％ CI（8.22，15.14），P＜0.001] and adaliumumab group [RR ＝1.27，95％CI（1.19，1.35），P＜0.001]. The proportion of patients with IGA score of 0，the proportion of patients who achieved 75％ reduction or more from baseline of PASI ，dermatology life qu ality index score of 0 or 1 in guselkumab group were signifi cantly superior than placebo group and adaliumumab gr oup，the proportion of patients who achieved 100％ reduction from baseline of PASI in guselkumab group Lewx- was significantly superior than placebo group （P＜0.05）， inn@outlook.com there was no significant difference compared with adaliumumab group （P＞0.05）. There was no statistical significance in the proportion of patients with IGA score of and other secondary outcome indicators between guselkumab and secukinumab group （P＞0.05）. In the safety indicators as total incidence rate of ADR ，rate of withdrawl due to ADR ，etc. ，there was no statistical significance between guselkumab and placebo/ adalimumab groups （P＞0.05）. CONCLUSIONS ：Guselkumab is superior to placebo ，adaliumumab and secukinumab in improving the symptoms of moderate-to-severe plaque psoriasis with good safety .

Objective To establish and verify the fluctuation of reference intervals for biochestry parameters in routine physical exami-nation. Methods The results of biochemistry parameters,i.e., total protein (TP), albumin (Alb), total bilirubin (T-Bil), alanine aminotransferase (ALT), glucose (Glu), urea (Urea), creatinine (Cr), uric acid (UA), triacylglycerol (TG) and total cholesterol ( TC) from 2 089 healthy subjects in routine physical examination during consecutive 2014, 2015 and 2016 were randomly collected, in which all the results were within the reference range. The ratio (λ1) of the results of 2015 to those of 2014, and ratio (λ2) of the re-sults of 2016 to those of 2015 were calculated. λ1was analyzed statistically to establish the fluctuation of reference interval (CIλ). CIλ was verified by λ2.The personalized reference interval (CIp) was established by multiplying each result of 2015 and the upper and low-er limits of CIλ. The CIpwas verified by the results of 2016. The ratios of CIpto the upper and lower limits of conventional reference in-terval were calculated. Results The values of CIλwere as follows: TP: 0.91 to 1.08, Alb: 0.91 to 1.08, T-Bil: 0.58 to 1.74, ALT:0.49 to 1.99, Glu: 0.84 to 1.20, Urea: 0.67 to 1.50, Cr: 0.82 to 1.22, UA: 0.77 to 1.32, TG: 0.51 to 1.98 and TC: 0.80 to 1.26. Compared with conventional reference interval, the ratio of the upper and lower limits of CIp was lessened. Conclusion The personal-ized reference interval (CIp) which may increase the sensitivity of conventional reference intervals was established and verified.

Objective To establish and verify the personalized reference interval of blood cells.Methods The results of blood cells from 2 089 health subjects in 2014,2015 and 2016 were collected.The ratio of the later results to the previous results was defined as the fluctuation (λ).The ratio (λ1) of the results of 2015 to the results of 2014 was calculated and λ1 was analyzed statistically to establish the fluctuation reference interval (CIλ).The ratio (λ2) of the results of 2016 to the results of 2015 was calculated.λ2 was used to verify λ2.The personalized reference interval (CIp) was established by multiplying each result of 2015 and CIλ.CIp was verified by results of 2016.The ratio of the upper and lower limits of CIp was calculated.The ratio of the upper and lower limits of the reference interval (WS/T 405) was calculated.Results The values of CIλ were as follows:WBC (0.66 to 1.53),L(0.67 to 1.51),M (0.50 to 2.00),N(0.56 to 1.78),E(0.4 to 2.51),PLT(0.76 to 1.32),RBC(0.92 to 1.12),Hb(0.92 to 1.11),Hct(0.91 to 1.12),MCV(0.95 to 1.07),MCH(0.95 to 1.05)and MCHC(0.94 to 1.06).The validation tests of CIλ and CIp showed that both CIλ and CIp were suitable for this laboratory.Compared with the reference interval of professional criteria,the ratio of the upper and lower limits of the CIp was smaller than that of traditional criteria.Conclusion CIp for this laboratory was established and verified.Compared with traditional criteria,CIp should be more personalized and highly sensitive.

Objective To investigate the diagnostic value of serum LP ( a) and C-reactive protein ( CRP) in patients with ca-rotid atherosclerosis vulnerable plaque .Methods One hundred and twenty-eight patients with acute cerebral infarction coupled with carotid atherosclerosis were selected for the study , and they were divided into the vulnerable plaque group (90 cases) and the stable plaque group(38 cases) in accordance with the detection results from color Doppler ultrasonorgraphy .Then, the levels of LP(a) and CRP in the two groups were measured .Results The levels of LP(a) and CRP in the vulnerable plaque group were significantly higher than those in the stable plaque group , and statistical significance could be seen , when comparisons were made between the 2 groups ( P<0.01).Conclusion The higher levels of LP(a) and CRP might indicate that there was probably a transfer from the stable plaque to the vulnerable plaque .

Objective To evaluate and analyze the performance of Mindray BC-5D hematological control materials.Methods First, uniformity and stability tests were performed by using the Mindray BC5300 hematological analyzer.Then, the Mindray BC5300 hematological analyzer and the Coulter LH780 hematological analyzer were used simultaneously for the detection of Mindray BC-5D.The Coulter 5C hematological control materials and the domestic analyzer were used and replaced with new batches every month, to detect hematological control materials once for a succession of 6 months.Finally, the stability of the 3 hematological control materials from the 6 batches was compared accordingly.Results The uniformity of Mindray BC-5D hematological control materials met the na-tional requirements of the Pharmaceutical Industry Standards of the People′s Republic of China for whole blood quality control materials. Within the 90-day expiry date as specified by the manufacturer, no statistical significance could be seen in the short-term stability, mid-term stability and long-term stability, when comparisons were made between them(P>0.05).Therefore it conformed to the 14-day sta-bility requirements as declared by the manufacturer, once it was opened.The results of comparison for the stability of the 3 brands of hematological control materials were that the stability of Mindray BC-5D hematological control materials was similar to the Coulter 5C he-matological control materials, but was obviously superior to the control materials by the domestic analyzer.Conclusion The perform-ance of Mindray BC-5D hematological control materials was of better quality, more economical and had better clinical efficacy, which was worth further clinical extension.

Objective To investigate lymph node metastases in distal gastric cancer and its clinical significance. Methods From June 2006 to December 2007, 129 distal gastric cancer patients underwent radical gastrectomy with lymphadenectomy. Dissected lymph nodes were collected in groups, and histopathological studies were performed to detect lymph node metastasis. The relationship between lymph node metastasis and tumor parameters such as diameter, location, infiltrating depth, histological category,Borrmann typing was evaluated. Results Lymph node metastases was found in 80 out of 129 patients (62%). A total of 3295 lymph nodes were harvested with an average of 25.54 lymph nodes per patient,among those 889 lymph nodes were identified with metastasis. The metastasis rate was 18.60%, 48. 84%,37. 98%, 38. 76%, 44. 19%, 31.01%, 10. 85%, 14. 73%, 4. 65%, 1.55% and 0. 78% respectively in No. 1, No. 3, No. 4d, No. 5, No. 6, No. 7, No. 8a, No. 9, No. 11 p, No. 12a, No. 14v lymph node group.No. 3 and No. 6 group nodes were moat frequently invaded by metastasis. Conclusion This study provides the regular pattern of lymph node metastasis in distal gastric carcinoma patients undergoing radical gastrectomy and perigastric lymphadectomy which helps to guide lymphadectomy in terms of less trauma and favorite prognosis.