Objective To understand the current status of radiation diagnosis and treatment resources and their use in Taiyuan City, China, and provide data support for optimizing resource allocation and standardizing diagnosis and treatment. Methods A census-based approach was implemented using a standardized questionnaire to collect basic information on radiation diagnosis and treatment institutions in Taiyuan City. The number and use frequency of radiation diagnosis and treatment resources were calculated based on the resident population of Taiyuan City at the end of 2023. Results There were a total of 562 radiation diagnosis and treatment institutions in Taiyuan City, with 3970 workers and 1354 pieces of equipment. The numbers of radiation diagnosis and treatment institutions, workers, and equipment per 1 000 000 population were 103, 728, and 248, respectively. There were significant differences in radiation diagnosis and treatment resources among different districts and counties. There were 526 (93.59%) radiation diagnosis and treatment institutions and 25 (96.15%) tertiary hospitals in the six urban districts. All institutions offering nuclear medicine diagnosis and treatment and radiotherapy were located in the urban districts. There were substantial disparities among hospitals of different levels. The average numbers of radiation workers and equipment were in the order of tertiary hospitals (99.42, 17.15) > secondary hospitals (13.31, 4.62) > primary and unrated hospitals (1.43, 1.38). The frequency of radiation diagnosis and treatment in tertiary hospitals was 112 149 per hospital, which is 5 times that of secondary hospitals and 44 times that of primary and unrated hospitals. The use frequency of radiation diagnosis and treatment was 975.79 per 1000 population. The use frequency was 941.12 per 1000 population for X-ray diagnosis, 21.68 per 1000 population for interventional radiology, 8.70 per 1000 population for nuclear medicine diagnosis, 2.33 per 1000 population for nuclear medicine treatment, and 1.95 per 1000 population for radiotherapy. Conclusion There are abundant radiation diagnosis and treatment resources in Taiyuan City. The use frequency of radiation diagnosis and treatment has reached the level of Class II medical and health care regions, and there remains considerable room for growth and improvement. At present, the distribution of radiation diagnosis and treatment resources and services is unbalanced among different districts and counties as well as among institutions of different levels, mainly concentrated in urban districts and tertiary hospitals. The health administrative department needs to make overall plans and allocate resources scientifically.

Objective To understand the basic information of the number, classification, and distribution of radiation work units in non-medical institutions in Shanxi Province, China, and to analyze the status quo of health management and radiation protection measures for radiation workers, so as to provide a scientific basis for occupational exposure protection in non-medical radiation work units and better protect the occupational health rights and interests of radiation workers. Methods A questionnaire survey was conducted to investigate some non-medical institutions in Shanxi Province. On-site testing was carried out to determine the risk factors for radioactive occupational diseases in the selected non-medical institutions. Results In 220 non-medical institutions, there were 340 radiation devices and 2284 radioactive sources. The rate of individual dose monitoring was 92.7% and the rate of occupational health examination was 87.2%. These devices were equipped with 325 detection instruments for radiation protection, 1316 personal protective equipment, and 730 personal dose alarms. Radiation occupational disease risk factors were investigated in 101 institutions. Conclusion The occupational health management of radiation workers in non-medical institutions in Shanxi Province is generally in line with the national standards. However, there is still a big gap with the level of occupational health management in medical institutions. The health administration departments should clarify the management measures for non-medical institutions and strengthen their supervision and management functions.

Objective To study the effects of intramedullary pressure on the fluid flow behavior in bones.Methods Multi-scale models of macro bone tissue and macro-meso osteon groups were established using the COMSOL Multiphysics software.Considering the interrelationship of different pore scales,such as the bone marrow cavity,Haversia canal,and bone lacunar-canaliculus,the pore pressure and flow rate of hollow bone tissues and bone tissues with intramedullary pressure were compared,and the effects of the amplitude and frequency of intramedullary pressure on the pressure and flow velocity of the liquid in the bone were analyzed.Results When intramedullary pressure was considered,the pore pressure in bone tissues with intramedullary pressure was 6.4 kPa higher than that in hollow bone tissues.The flow pressure increased significantly with an increase in the intramedullary pressure amplitude,but the flow velocity remained unchanged.The frequency of intramedullary pressure had little effect on pore pressure and flow velocity.Conclusions The multi-scale pore model established in this study can accurately analyze bone fluid flow behavior.These results are of great significance for an in-depth understanding of force conduction in the bone.

Chromosomal region maintenance 1 (CRM1) is associated with an adverse prognosis in glioma. We previously reported that CRM1 inhibition suppressed glioma cell proliferation both in vitro and in vivo. In this study, we investigated the role of CRM1 in the migration and invasion of glioma cells. S109, a novel reversible selective inhibitor of CRM1, was used to treat Human glioma U87 and U251 cells. Cell migration and invasion were evaluated by wound-healing and transwell invasion assays. The results showed that S109 significantly inhibited the migration and invasion of U87 and U251 cells. However, mutation of Cys528 in CRM1 abolished the inhibitory activity of S109 in glioma cells. Furthermore, we found that S109 treatment decreased the expression level and activity of MMP2 and reduced the level of phosphorylated STAT3 but not total STAT3. Therefore, the inhibition of migration and invasion induced by S109 may be associated with the downregulation of MMP2 activity and expression, and inactivation of the STAT3 signaling pathway. These results support our previous conclusion that inhibition of CRM1 is an attractive strategy for the treatment of glioma.

Chromosomal region maintenance 1 (CRM1) is associated with an adverse prognosis in glioma. We previously reported that CRM1 inhibition suppressed glioma cell proliferation both in vitro and in vivo. In this study, we investigated the role of CRM1 in the migration and invasion of glioma cells. S109, a novel reversible selective inhibitor of CRM1, was used to treat Human glioma U87 and U251 cells. Cell migration and invasion were evaluated by wound-healing and transwell invasion assays. The results showed that S109 significantly inhibited the migration and invasion of U87 and U251 cells. However, mutation of Cys528 in CRM1 abolished the inhibitory activity of S109 in glioma cells. Furthermore, we found that S109 treatment decreased the expression level and activity of MMP2 and reduced the level of phosphorylated STAT3 but not total STAT3. Therefore, the inhibition of migration and invasion induced by S109 may be associated with the downregulation of MMP2 activity and expression, and inactivation of the STAT3 signaling pathway. These results support our previous conclusion that inhibition of CRM1 is an attractive strategy for the treatment of glioma.

Objective To evaluate the feasibility and efficacy of laparoscopic liver resection (LLR) in elderly patients with hepatocellular carcinoma (HCC). Methods Twenty-nine elderly patients undergoing laparoscopic liver resection (LLR) and 58 elderly patients receiving open liver resection (OLR) for HCC were included from January 2013 to December 2015 in our department of Fujian Medical University. Two groups were 1:2 matched for gender ,tumor numbers ,and operative procedure.Besides ,general clinical data ,intraoperative data ,postoperative recovery ,and postoperative survival were compared. Results The postoperative hospital stay was shorter in the LLR group [(9.1±3.8)days]thanintheOLRgroup[(11.8±5.1)days](t= -2.66,P<0.05).Theincidence of portal triad clamping was lower in the LLR group than in the OLR group (34.5％ vs.60.3％ ,χ2 =5.18 ,P<0.05). The removal time of abdominal drainage tube was earlier in the LLR group (4.18 ± 1.94)days than in the OLR group (5.4 ± 2.1)days (t= -2.48 ,P<0.05). The overall survival (OS) showed no difference (37.08 months vs.38.72 months ,t=0.72 ,P=0.789). The disease-free survival (DFS) showed no difference (29.00 months vs.27.49 months ,t=0.53 ,P=0.467). Conclusions LLR in elderly patients with HCC can achieve the same long-term outcome as the conventional open hepatectomy ,and LLR has better short-term outcomes with obvious advantages of minimal invasion.

OBJECTIVE:To systematically evaluate therapeutic efficacy and safety of recombinant mutant human tumor necrosis factor(rmhTNF)versus pleural perfusion of cisplatin in the treatment of malignant pleural effusions,and to provide evidence-based reference in clinic. METHODS:Retrieved from PubMed,Cochrane Library,Web of Science,CJFD,Wanfang database,VIP and CBM,RCTs about rmhTNF(trial group)vs. cisplatin(control group)in the treatment of malignant pleural effusions were included. Meta-analysis was conducted by using Rev Man 5.3 statistical software after quality evaluation and data extraction with Cochrane system evaluator manual 5.3.0. RESULTS:A total of 7 RCTs were included,involving 478 patients. Meta-analysis showed that clinical total response rate of trial group [RR=1.43,95%CI(1.27,1.62),P<0.001] was significantly higher than that of control group,with statistical significance. There was no statistical significance in the incidence of gastrointestinal reaction[RR=1.15,95%CI(0.73,1.80),P=0.55],chest pain[RR=1.12,95%CI(0.73,1.73),P=0.60],fever[RR=0.62,95%CI(0.35,1.08),P=0.09] and myelosuppression[OR=0.94,95%CI(0.57,1.54),P=0.79] between trial group and control group. CONCLUSIONS:Pleural perfusion of rmhTNF is significantly better than cisplatin in the treatment of malignant pleural effusions. The incidences of gastrointestinal reaction,chest pain,fever and myelosuppression induced by rmhTNF were similar to those induced by cisplatin.

Objective To study the correlation between CD169 expression of monocytes and disease progression in human immunodeficiency virus (HIV )-infected patients .Methods Sixty HIV-infected patients and 30 healthy controls were recruited .According to the CD4 + T lymphocyte counts ,HIV-infected patients were divided into three groups including < 200 cells/μL ,200 — 350 cells/μL and > 350 cells/μL groups . The differences in monocytes counts ,the proportions of CD16 + and CD169 + monocytes were analyzed among the three groups and healthy controls .The correlations between proportion of CD169 + monocytes and CD4 + T lymphocyte counts ,viral load ,and proportion of CD16 + monocytes were analyzed .Results The monocyte counts in CD4 + T lymphocytes < 200 cells/μL group , (200 — 350 ) cells/μL group , >350 cells/μL group and healthy control group were (342 ± 99) ,(396 ± 145) ,(365 ± 80) ,and (404 ± 106)/μL ,respectively ,which were not significantly different (F= 2 .55 , P > 0 .05) .The proportions of CD16 + monocytes in the four groups were (19 .8 ± 8 .8)％ ,(14 .3 ± 2 .8)％ ,(9 .7 ± 2 .0)％ and (4 .0 ± 0 .8)％ ,respectively ,which were significantly different ( F = 30 .90 , P < 0 .05 ) . The proportions of CD169 + monocytes in the four groups were (72 .6 ± 11 .4)％ ,(59 .4 ± 14 .7)％ ,(33 .3 ± 14 .5)％ and (2 .6 ± 0 .8)％ ,respectively ,which were significantly different (F = 152 .40 , P< 0 .05) .The proportion of CD169 + monocytes was negatively correlated with CD4 + T lymphocyte counts (r = 0 .792 , P< 0 .05) , while positively correlated with both viral load (r= 0 .485 ,P< 0 .05) and proportion of CD16 + monocytes (r= 0 .395 , P< 0 .05) .Conclusions The CD169 expressions of monocytes in HIV-infected patients are significantly increased and correlated with both monocyte activation and disease progression .

Objective:To compare the short-and long-term outcomes of laparoscopic liver resection (LLR) with those of open liver re-section (OLR) for hepatocellular carcinoma (HCC). Methods:Clinical data from patients who suffered from HCC and received LLR or OLR from January 2013 to May 2016 in The First Affiliated Hospital of Fujian Medical University were analyzed restrospectively. To over-come selection bias, a 1:1 match was performed via a case-control study. After case-control matching was completed, 105 patients were included in each group. Short-term outcomes of operation and postoperation as well as long-term outcomes, including disease-free survival and overall survival rates, were evaluated. Relevant statistical methods were used for statistical analysis. Results: The postoperative hospital stay of the laparoscopic group was shorter (8.68 ± 2.82 vs. 10.61 ± 2.95 days, P<0.01) and its use of portal triad clamping was less (20.0%vs. 41.0%, P<0.01) than those of the open group. The abdominal drainage tube of the laparoscopic group was also removed at an earlier time than that of the open group (4.45±2.53 vs. 5.40±2.43 days, P<0.01). The 1-, 2-, and 3-year overall survival rates of the laparoscopic group were 96.88%, 87.54%, and 79.50%, respectively. By comparison, the 1-, 2-, and 3-year overall survival rates of the open group were 94.91%, 86.29%, and 76.37%, respectively (P=0.670). The 1-, 2-, and 3-year disease-free survival rates of the laparoscopic group were 72.09%, 60.16%, and 52.08%, respectively, while the 1-, 2-, and 3-year disease-free survival rates of the open group were 69.48%, 56.50%, 48.13%, respectively (P=0.388). Conclusion:LLR is a safe and feasible procedure. LLR in the selected patients with HCC showed similar long-term outcomes to those of OLR. The postoperative hospital stay of these patients who underwent LLR was shorter and their use of portal triad clamping was less than those of the patients who received OLR. The abdomi-nal drainage tube of the former was also removed at an earlier time than that of the latter. Therefore, the short-term outcomes of LLR were better than those of OLR.

OBJECTIVETo investigate the value of controlled attenuation parameter (CAP) in the diagnosis of fatty liver using FibroScan in patients with chronic liver disease (CLD).

METHODSA prospective cohort study was performed for the patients with chronic hepatitis B (CHB), chronic hepatitis C (CHC), and non-alcoholic fatty liver disease (NAFLD) who underwent liver pathological examination followed by CAP measurement within 1 week in The Second People's Hospital of Tianjin from February 2013 to May 2014. According to related guidelines, hepatocyte steatosis was classified as S0: <5%, S1: 5%-33%, S2: 34%-66%, or S3: ≥67%. The receiver operating characteristic (ROC) curves were plotted with positive results as the diagnostic criteria, and the optimal cut-off values were determined at the maximum Youden index. Single linear regression and multiple stepwise regression were applied to analyze the influencing factors for CAP.

RESULTSA total of 427 patients were enrolled, consisting of 19 patients (4.4%) with NAFLD, 383 (89.7%) with CHB, and 25 (5.9%) with CHC. The optimal cut-off values for CAP in the diagnosis of steatosis ≥5%, ≥34%, and ≥67% were 230 dB/m, 252 dB/m, and 283 dB/m, respectively, and the areas under the ROC curve were 0.803, 0.942, and 0.938, respectively (Z = 14.194, 28.385, and 16.486, respectively, all P < 0.01). CAP differentiated S0 from S1, S1 from S2, S0 from S2, S0 from S3, and S1 from S3 (Z = 10.109, 10.224, 47.81, 29.917, and 10.999, all P < 0.01), but was not able to differentiate S2 from S3 (Z = 0.656, P = 0.5116). The single linear regression and multiple stepwise regression analyses showed that only body mass index (BMI; B = 4.001, P < 0.01) and hepatic steatosis (B = 33.015, P = 0.000) were correlated with CAP. The coincidence rates between CAP and liver pathological diagnosis were 77.4%, 81.0%, and 96.2% for S0, S3, and ≥S2, respectively.

CONCLUSIONCAP has a good value in the diagnosis of fatty liver in CLD patients, and can well differentiate between all stages of fatty liver except S2 and S3. CAP is influenced by BMI, but is not found to be associated with liver fibrosis, inflammation, liver stiffness measurement, and etiology.

Area Under Curve ; Biopsy ; Body Mass Index ; Cell Differentiation ; Elasticity Imaging Techniques ; Hepatitis B, Chronic ; complications ; Hepatitis C, Chronic ; complications ; Humans ; Inflammation ; complications ; Linear Models ; Liver Cirrhosis ; complications ; Multivariate Analysis ; Non-alcoholic Fatty Liver Disease ; complications ; diagnosis ; Prospective Studies ; ROC Curve