Objective To summarize the risk factors, the diagnostic and therapeutic approaches, and the outcomes of the ruptured primary hepatocellular carcinoma (PHC) occurred after transcatheter arterial chemoembolization (TACE) in order to make a further understanding of this complication. Methods The clinical data of 8 patients with ruptured PHC after TACE, who were encountered at the First Affiliated Hospital of Suzhou University during the period from Sep. 2007 to Sep. 2013, were retrospectively analyzed. Results A total of 1379 times of TACE were performed in 678 patients with PHC. Among the 678 patients, 8 developed rupture of PHC with bleeding after TACE. The overall incidence was 1.2%. The mean diameter of the tumors in the 8 patients was (11.5 ± 2.6) cm, ranging from 7.6 cm to 15.9 cm. All the lesions were located at the peripheral region close to the liver capsule, and most of them protruded outward. Five cases had coexisting portal hypertension. The average dosage of Lipiodol used in TACE was (14.9 ± 4.5) ml with a range of (8 - 20) ml. Of the 8 patients, emergency transcatheter embolization was carried out in 4 and medical management was employed in other 4. Seven patients died as all active emergency treatments failed. Only one patient, who had received emergency transcatheter embolization, survived the ruptured PHC. Conclusion Rupture of primary hepatocellular carcinoma after TACE is a rare, but very serious complication. Its occurrence may be related to lesion’s characteristics, such as large tumor size, superficial location and protrusion from the liver surface, etc. Besides, interventional management, e.g. without use of solid embolic material to enhance the embolization effect, may also be responsible for the rupture.

Objective To investigate the experimental effectofmagnetic mNGF nanoparticlesguided by out-side magnetic on the the sciatic nerve injury.Tianjin 300211,China.Methods As a drug carrier,PLGA connects magneticironparticles with and mNGF. The nanoparticle suspension liquid was prepared and its physicochemical properties was characterized. The model of the left sciatic nerve injury in rats was divided into 3 groups. Rats in Group A received intravenous tail vein injectionof magnetic mNGF nanoparticlesfollowed by two-hour outside mag-neticguidance once week.Group B received intravenous tail vein injection of magnetic mNGF nanoparticles without outside magnetic guidance once week. Group C received intravenous tail vein injection of the same content mNGF once week. Two months later,we measured the ischial nerve index(SFI)and madenerve electrical physiological ex-amination under anesthesia.We also measured quality ratio of triceps surae and did left sciatic nerve slice HE stain-ing.Finally,experimental data were statistically analyzed. Results The SFI,nerve conduction velocity and quality ratio of triceps surae of Group A were higher than those of Group B and Group B(P<0.05).There was no significant difference between Group B and Group C(P>0.05).The arrangement and density of the regeneration nerve in Group A were better than those of Group B and C under optical microscope. Conclusion The results showed that the magnetic mNGF nanoparticles guided by outside magnetic can promote the recovery of rat sciatic nerve injury.

Objective To evaluate the effect of different gargling liquid on colony number in air during oral ultrasound scaling for patients with periodontitis.Methods Patients with mild (n=54), moderate (n=54), and severe chronic periodontitis (n=54) were selected, then patients with same degree of periodontitis were randomly divided into three groups, with 18 in each group. Before scaling, patients in each group of mild, moderate, and severe periodontitis were given honeysuckle liquid (gargle A), 3％ hydrogen peroxide (gargle B), and normal saline (gargle C) respectively. Bacterial culture and identification of air specimens were conducted at 0 and 30 minutes after the beginning of ultrasonic scaling as well as 10, 20 minutes after the end of ultrasonic scaling.Results Variance analysis of three-factor factorial design data showed that degree of periodontitis, types of gargling liquid, and sampling time had interaction (F=2.666, P=0.002). Comparisons of air colonies: At the beginning of scaling, there was no significant difference in colony number of air around patients using different gargling liquid in mild, moderate and severe groups (all P＞0.05). Among patients using the same gargling liquid at 30 minutes after the beginning of scaling, colony number of air was the lowest around patients with mild periodontitis and the highest around patients with severe periodontitis, colony numbers of air around patients with gargle A and B were lower than that of patients with gargle C. Comparison of each sampling points showed that colony number of air around the right side of patients' head was highest, differences were all statistically significant (all P＜0.05). 20 minutes after the end of scaling, there was no significant difference in colony number among groups compared before scaling (all P＞0.05). The main isolated strains in the air were Streptococcus viridans (32.53％), coagulase negative staphylococcus (24.56％), and filamentous fungi (18.48％).Conclusion There are variety of opportunistic pathogens in the air during oral ultrasound scaling, and the number of colonies is positively correlated with the degree of periodontitis. honeysuckle liquid has a good effect on reducing the number of air colonies during and after scaling.

Objective:To analyze the trend of late-diagnosis of HIV-infected men who have sex with men (MSM) before and after the AIDS Conquering Project in Guangxi Zhuang Autonomous Region (Guangxi) and its influencing factors, in order to find out the population groups that need priority intervention at the present stage.Methods:The HIV-infected MSM in Guangxi from 2005-2021 were selected from the National Integrated HIV/AIDS Control and Prevention Data System. The Joinpoint 4.9.1.0 software was used to test the time trend of late-diagnosis and non-late-diagnosis cases, and logistic regression was applied to analyze the factors influencing the proportion of late-diagnosis at each stage.Results:From 2005 to 2021, 5 764 HIV-infected MSM were reported in Guangxi from 2005 to 2021, with an overall late-diagnosis of 28.45% (1 640 cases). Under the 2015 baseline data as the boundary, the proportion of late-diagnosis cases showed a trend of sharp decline followed by stabilization from 2005 to 2015, average annual percent change= -6.90% ( P<0.001). The effect of factors such as resident population, occupation as a farmer or worker, and sample originating from medical consultation on late-diagnosis changed considerably before and after the implementation of the project, and the factors influencing late-diagnosis at this stage were age, resident population, occupation as a farmer, worker or student. The factors influencing late-diagnosis at this stage are age, resident population, and occupation as a farmer, worker and a student. Conclusions:The proportion of late diagnosis cases of HIV-infected MSM in Guangxi decreased significantly before and after the project. However, late-diagnosis should not be neglected and precise prevention and control should be carried out for the resident population, farmers, workers or students.

OBJECTIVETo determine the correlation of the CYP1A1 (rs4646422) gene polymorphisms with male infertility in the Chinese Han population.

METHODSUsing the Mass ARRAY iPLEX GOLD technique, we conducted a case-control study on theCYPlA1 (rs4646422) gene polymorphisms in 636 infertile males aged 21-49 years (case group) and 442 normal healthy men aged 23-47 years (control group) of the Chinese Han population. We analyzed the genotypes and allele frequencies in the two groups ofsubjects with the SPSS 20.0 software.

RESULTSCompared with the wild homozygous genotype GG, the heterozygous genotype AG (OR = 1.06, 95% CI 0.81-1.38) and homozygous genotype AA (OR = 1.11, 95% CI 0.56-2.21) showed no correlation with male infertility, nor did the mutant allele A (OR = 1.06, 95% CI 0.85-1.32) in comparison with the wild allele G.

CONCLUSIONThe CYP1A1 (rs4646422) gene polymorphisms might not be correlated with male infertility in the Chinese Han population.

Adult ; Alleles ; Case-Control Studies ; China ; Cytochrome P-450 CYP1A1 ; genetics ; Gene Frequency ; Genotype ; Homozygote ; Humans ; Infertility, Male ; genetics ; Male ; Middle Aged ; Polymorphism, Genetic ; Young Adult

BACKGROUND: In the early study, hydroxyapatite coatings containing magnesium (Mg-HA) were successfully prepared on the carbon/carbon composite surface by electromagnetic induction deposition. The effects of different induction deposition time on the morphology of Mg-HA coating were analyzed. OBJECTIVE:To investigate the in vitro properties of Mg-HA coating on the carbon/carbon composites. METHODS: HA (control group) and Mg-HA (experimental group) coating were prepared on the surface of carbon/carbon composites.(1)In vitro solubility:Carbon/carbon composites with different coatings were immersed in low-glucose DMEM medium, and surface morphology, ion concentration, and coating adhesion were tested before and after immersion. (2) Cytocompatibility: Carbon/carbon composites with different coatings were respectively cultured with mouse bone marrow mesenchymal stem cells for 6 days, and cell proliferation was measured by scanning electron microscope. RESULTS AND CONCLUSION: (1) One day after soaking, sediments formed on the coating surface in both groups, but there were more sediments in the experimental group than the control group. Six days after soaking, the sediments completely covered the coating surface in the experimental group, while there were still some gaps in the control group; Ca and P were both detected on the coating surface in the two groups, and the Mg content on the coating surface was obviously higher in the experimental group than the control group. (2) Six days after soaking, the concentrations of Ca, P and Mg in the control group continued to fall; in the experimental group, the concentrations of Ca and P were also reduced gradually, but the Mg concentration arose gradually. Moreover, the Mg concentration was significantly higher in the experimental group than the control group (P < 0.05). (3) The bonding strength of the coating in the experimental group was higher than that in the control group before and after 6 days soaking. In summary, the Mg-HA coating has better bonding strength and cell compatibility.

Objective To investigate the effect of prior statin use on outcome after intravenous thrombolysis in patients with acute ischemic stroke. Methods Consecutive patients with acute ischemic stroke treated with intravenous thrombolysis at the Department of Neurology, the Third People's Hospital of Chengdu from July 2014 to August 2017 were enrolled, and divided into the statin use group and nonstatin use group according to prior statin use. Symptomatic intracranial hemorrhage and the outcome at 90 days after onset (good outcome and poor outcome were defined as the modified Rankin Scale score 0-2 and > 2, respectively) in the two groups were compared, and multivariate logistic regression analysis was used to identify the effect of prior statin use on the outcome. Results A total of 327 patients were enrolled, including 68 (20. 80％ ) in the statin use group, and 59 (79. 20％ ) in the nonstatin use group. There were no significant differences in the incidence symptomatic intracranial hemorrhage (7. 35％ vs. 10. 04％; χ2 = 0. 453, P = 0. 501), good outcome rate at 90 days (69. 12％ vs. 66. 02％; χ2 = 0. 232, P = 0. 630), and mortality rate (7. 35％ vs. 7. 34％; P = 1. 000) between the statin use group and the nonstatin use group. Multivariable logistic regression analysis showed that prior statin use were not an independent risk factor for symptomatic intracranial hemorrhage (odds ratio 0. 658, 95％ confidence interval 0. 233-1. 857; P = 0. 429) and poor outcome at 90 dafter onset (odds ratio 0. 848, 95％ confidence interval 0. 424-1. 696; P = 0. 641) in patients treated with intravenous thrombolysis. Conclusion Prior statin use is not associated with symptomatic intracranial hemorrhage and outcome after intravenous thrombolysis in patients with acute ischemic stroke.

BACKGROUNDThe adverse health effects of lead for children under 6 years are well known. Studies to assess the lead exposure among children in China are small in sample size and lack of national representative data. The aim of this study therefore was to describe blood lead levels and identify risk factors for lead exposure among children aged 0 to 6 years living in 16 cities in China.

METHODSWe analyzed data from blood lead levels surveillance in China carried out in 16 large cities between 2004 and 2008. A stratified clustered random sampling strategy was used. A total of 69 968 children aged 0 to 6 years were included. We conducted multiple Logistic regression analyses to explore risk factors to high blood lead level.

RESULTSThe geometric mean blood lead level of the children was 4.50 µg/dl (median: 4.90 µg/dl; IQR: 3.20 - 7.00 µg/dl). Overall prevalence of blood lead level ≥ 10.00 µg/dl among 0- to 6-year-old children was 7.57%. But the proportion of blood lead level ≥ 5.00 but < 10.00 µg/dl was 42.12%. Blood lead levels were significantly higher in boys (4.63 µg/dl) than in girls (4.35 µg/dl) (P < 0.0001). The geometric mean blood lead levels and prevalence of blood lead level ≥ 10.00 µg/dl increased with age (P < 0.0001 for the two trends). After controlling for sociodemographic, dietary and behavior factors, multivariable analysis indicated that lower maternal education, male gender, younger age, often biting pencil or/and toys, walking or playing for long time on the street, not washing hands before eating are major risk factors for higher lead levels.

CONCLUSIONSThe blood lead levels among Chinese children in urban areas are lower than previous studies but close to those of developed countries. However, children with low lead exposure account for almost half and the sociodemographic factors (age, male sex, and low mother education level) continue to be associated with higher blood lead levels.

Child, Preschool ; China ; Female ; Humans ; Infant ; Infant, Newborn ; Lead ; blood ; Logistic Models ; Male ; Time Factors ; Urban Health

Objective To investigate the diagnostic value of serum lamin A(LMNA)and leukotriene(LT)B4 for adverse pregnancy outcomes in patients with hypertensive disorders of pregnancy(HDP).Methods A total of 83 HDP patients admitted to the hospital from January 2021 to May 2023 were selected as the HDP group and 83 healthy pregnant women in the same period were selected as the control group.According to the pregnancy outcome,the HDP patients were divided into a poor outcome group(38 cases)and a good outcome group(45 cases).Serum LMNA and LTB4 levels were measured by enzyme-linked immunosorbent assay.Multivariate Logistic regression was used to analyze the influencing factors of adverse pregnancy outcomes in patients with HDP.Receiver operating characteristic(ROC)curve was used to analyze the diagnostic value of serum LMNA and LTB4 levels for adverse pregnancy outcomes in patients with HDP.Results Compared with the control group,the serum LMNA level was decreased and the LTB4 level was increased in the HDP group(P＜0.05).Compared with the good outcome group,the serum LMNA level was significantly de-creased,and the LTB4 level was increased in the poor outcome group(P＜0.05).Preeclampsia,severe pre-eclampsia and elevated LTB4 level were independent risk factors for adverse pregnancy outcomes in patients with HDP,and elevated LMNA level was an independent protective factor(P＜0.05).The area under the curve of serum LMNA and LTB4 levels in the diagnosis of adverse pregnancy outcomes of HDP patients was 0.873,which was larger than 0.787 and 0.786 of serum LMNA and LTB4 levels alone(P＜0.05).Conclusion De-creased serum LMNA and increased LTB4 levels are associated with adverse pregnancy outcomes in patients with HDP.Combined detection of serum LMNA and LTB4 levels have a high diagnostic value for adverse pregnancy outcomes in patients with HDP.

Objective To observe the alteration of thoracic and lumbar physiological curvature in adolescent idiopathic scoliosis(AIS)and the difference of physiological curvature between different types of scoliosis.Methods A retrospective analysis was conducted on 305 adolescent patients taken full spine X-ray in our hospital from January 2017 to December 2021.The patients were divided into normal group and scoliosis group.The normal group was composed of 179 patients,79 males and 100 females,aged 10 to 18 years old with an average of(12.84±2.10)years old,with cobb agle less than 10 degrees.The scol-iosis group was composed of 126 patients,33 males and 93 females,aged 10 to 18 years old with an average of(13.92±2.20)years old.The gender,age,Risser sign,thoracic kyphosis(TK)and lumbar lordosis(LL)in 2 groups were compared,and the TK and LL were also compared between different genders,different degrees of scoliosis and different segments of scoliosis.Re-sults The female ratio(P=0.001)and age(P＜0.001)in scoliosis group were higher than them in normal group;the ratio of low-grade ossification was higher in normal group than in scoliosis group(P=0.038).TK was significantly smaller in scoliosis group than in normal group(P＜0.001),but there was no significant difference in LL between the 2 groups(P=0.147).There were no significant difference in TK and LL between male and female.The TK was significantly bigger in mild AIS patients than in moderate AIS patients(P＜0.05),but there was no significant difference in LL between mild and moderate patients(P＞0.05).The TK and LL in different segments scoliosis were not found significant difference.Conclusion The physiological curvature of thoracic and lumbar spine is independent of gender.The thoracic physiological curvature becomes smaller in AIS patients,but lumbar curvature remains unchanged.The thoracic physiological curvature in mild AIS patients is greater than that in moderate AIS patients,but the lumbar curvature is almost unchanged between mild and moderate scoliosis and is similar with that in normal adolescent.The alteration of thoracic and lumbar physiological curvature in AIS patients may be related to relative an-terior spinal overgrowth,and the specific detailed mechanism needs to be further studied.