To explore the relationship between brachial ankle artery pulse wave velocity of the (baPWV) in different estimation GFR (eGFR) groups and atherosclerosis.In 2010,2012 and 2014,eGFR and baPWV were detected in 1 427 healthy persons.As eGFR level decreased,baPWV increased accordingly with higher proportion of baPWV ≥1 400 cm/s.The percentage of eGFR lower than 60 ml · min-1 · 1.73 m-2 was similar in subgroups with different baPWV.However,the proportion of eGFR reduction ≥ 30％ decreased according to the elevation of baPWV.Multivariate logistic regression analysis indicated the lower the eGFR,the higher the risk of atherosclerosis.Low eGFR is an independent risk factor for atherosclerosis.

Objective To study the nosogenesis and the relationship of different levels of serum Eotaxin,IL-13 and total IgE(TIgE)in asthmatic children. Methods Thirty children with asthma aging from 5 to 12 years were selected as study group (attack period and remission period), and 22 healthy children were selected as control group. Serum Eotaxin and IL-13 were measured with enzyme linked immunosorbent assay, and serum TIgE was determined with enzyme-linked fluoroimmune assay in the study group and control group, and pulmonary function was measured at the same time in the study group. Results (1) There were significant differences in pulmonary function between the attack period and the remission period (P ＜ 0. 001). (2) There were significant differences in the level of serum Eotaxin, IL-13 and IgE between the study group and the control group,especially for the attack period and the control group(P ＜0. 001). (3) There were significant positive correlations between the level of serum Eotaxin and IL-13, Eotaxin and TIgE, IL-13 and TIgE respectively in the study group (P ＜0. 05). (4) There were negative correlcations between the level of serum Eotaxin and FEV1 ,PEF,and serum IL-13 and FEV1, PEF in asthmatic children (P ＜ 0. 05), there were no correlations between the level of serum TIgE and FEV1, PEF in the study group (P ＞ 0. 05). Conclusion Serum Eotaxin, IL-13 and TIgE were participated in the nosogenesis of asthma, and the level of serum Eotaxin and IL-13 can be a assessment of asthmatic patients' condition.

Objective To explore the impact of levels of serum IL-17,Leukotriene B4 and IgE on pathogenesis of childhood asthma.Methods Totally 60 children with asthma acute exacerbation ( 29 children with mild asthma,31 children with moderate-severe asthma) were selected as study group,24 healthy children were selected as control group.Serum IL-17 and LTB4 were measured with euryzemLinked immunosorbent assay,serum IgE was determined with enzyme-linked fluoroimmuneassay by pharmacia CAP Sytem,PMN was determined with automatic blood analyser,pulmonary function was measured in the study group.Results ( 1 ) The level of serum IL-17 ( 1.15 ± 0.10 μg/L,2.80 ± 2.30 μg/L,0.83 ± 0.10 μg/L),LTB4 (2.22 ± 1.01 μg/L,8.79 ± 9.36 μg/L,1.94 ± 1.13 μg/L) and IgE( 123.70 ±86.94 μg/L,322.27 ±332.28 μg/L,24.27 ±7.64 μg/L) were significantly different among mild asthma group,moderate-severe asthma group and control group( P ＜ 0.001 ).( 2 )The N％ of mild asthma group,moderate-severe asthma group and study group were( 55.06 ± 1 1.15 ) ％,( 64.44± 11.87)％,(47.96 ± 13.52)％,L％ were(42.20 ± 11.04)％,(33.93 ± 10.02)％,(49.65 ± 13.02)％,and there were significant differences in N％ and L％ between study group and control group( P ＜ 0.05 ).( 3 ) There were significant positive correlations between the serum IL-17 levels and IgE,LTB4 and IgE,IL-17 and LTB4 in asthmatic children( P ＜0.05).(4) There were significant negative correlcations between the level of serum IL-17,LTB4 and FEVI,PEF( P ＜0.001 ).There were significant positive correlations between serum IL-17,LTB4 and N％ (P ＜0.001 ).(5)There were not correlations between the level of serum IgE and FEV1,PEF and N％in asthmatic children( P ＞0.05 ).Conclusion The levels of serum IL-17,LTB4 and IgE participated in pathogenesis on asthmatic children patients.

Objective To investigate the relationship between the levels of adiponectin and leptin in umbilical bloods and fetal' s growth and development. Methods Eighty-six neonates bom in our obstetrics department from October 2006 to October 2007 were enrolled the study. According to different birth weight they were divided into small for gestational age infants (SGA) group( n = 16), appropriate for gestational age (AGA) group( n = 41) and large for gestational age (LGA) group ( n = 29 ). After the baby was delivered, 20ml umbilical cord blood was collected immediately.Serum adiponectin and leptin levels of umbilical blood were measured using the radio immunoassay, while blood lipid levels were examined and neonatal growth parameters were measured. Results (1)There were significant difference of umbilical blood leptin and adiponectin levels among three groups ( P < 0.001), which were higher in LGA group than those in AGA and SAG group(P <0.01). (2)There were positive correlations between the serum leptin levels and body weight, gestational age, head circumference, body length, foot length and placental weight( P < 0.01). There were positive correlations between the umbilical blood levels of adiponectin and birth weight, head circumference, foot length and BMI(P<0.05).(3)Umbilical blood leptin levels were significantly positively correlated with adiponectin (P <0.01). (4) Blood lipid levels were not found significant difference among three groups, there were no significant correlation between umbilical blood adiponectin and leptin levels and blood lipids ( P > 0.05). Conclusion Umbilical blood leptin and adiponectin play an important role in fetal growth and developmental processes.

Objective:To explore the impact of urinary iodine concentration (UIC) on response to 131I treatment in differentiated thyroid cancer (DTC) patients with different risk stratifications. Methods:A total of 181 patients with DTC (75 males, 106 females, age: (44.1±12.5) years), who received the first 131I treatment in Tianjin Medical University General Hospital between January 2018 and February 2019, were retrospectively analyzed. Patients were divided into low- to intermediate-risk and high-risk groups. The treatment response was categorized into excellent response (ER) and non-excellent response (non-ER). Factors being evaluated including age, sex, preablative stimulated thyroglobulin (ps-Tg), UIC, etc. Mann-Whitney U test, χ2 test and logistic regression analysis were used for data analysis. Results:The UIC and ps-Tg in the low- to intermediate-risk group ( n=113) was 111.60(55.80, 204.65) μg/L and 2.08(0.63, 4.91) μg/L, respectively. Compared with the ER subgroup ( n=86), non-ER subgroup ( n=27) had higher UIC and ps-Tg level ( z values: -2.585, -4.511, both P<0.05). In the high-risk group ( n=68), UIC was 115.40(61.23, 167.28) μg/L and ps-Tg was 16.65(4.52, 43.45) μg/L. Compared with the ER subgroup ( n=20), non-ER subgroup ( n=48) had higher ps-Tg level ( z=-4.677, P<0.01), while the UIC was not significantly different between ER and non-ER subgroups ( z=-0.013, P>0.05). The multivariate logistic analysis indicated the ps-Tg level was the significant variable for non-ER in low- to intermediate-risk group (odds ratio( OR)=6.157(95% CI: 1.046-36.227); OR=22.965(95% CI: 3.591-146.857), both P<0.05) and high-risk group ( OR=9.696 (95% CI: 1.379-68.169), P<0.05); a high UIC could be an indicator of non-ER only in the low- to intermediate-risk group ( OR=3.715(95% CI: 1.201-11.488), P<0.05). Conclusions:The non-ER is associated with UIC in the low- to intermediate-risk group; however, UIC does not affect the non-ER in the high-risk group. Higher ps-Tg level is associated with non-ER in patients with low- to intermediate-risk and high-risk DTC.

Objective To investigate the value of flexi-rigid thoracoscopy in pleural effusion of unknown causes and the correlation with CEA, TK1 and ADA. Methods The clinical data and results of CEA, TK1 and ADA of 25 patients were retrospective analyzed in our department from 2015 January to November 2015. These patients accepted the examination of flexi-rigid thoracoscopy with pleural effusion of unknown causes. Results In the 25 patients with pleural effusion of unknown causes, definite diagnosis was made in 22 cases (88.00 %), of which 9 cases were malignant pleural effusion (36.00 %), 11 cases were tuberculous pleural effusion (44.00 %), 2 cases were inflammatory pleural effusion (8.00 %), 3 cases were undetermined (12.00 %). The positive rate of TK1 and CEA in malignant group was significantly higher than that in the tuberculosis group and inflammatory group, the positive rate of ADA in the tuberculosis group was significantly higher than that in the malignant group and inflammatory group. Conclusion Flexi-rigid medical thoracoscopy examination is an effective and safe method for diagnosis of unexplained pleural effusion with high exact diagnosis rate, less trauma and less complication. Combination with CEA, TK1 and ADA are helpful to improve diagnostic rate of pleural effusion of unknown causes.

Objective To establish a kind of mesenchymal stem cells(MSCs) model that could express hCD4 and hCCR5 to study the field of human immunodeficiency virus type 1 (HIV-1).Methods Lentiviral vectors containing the genes of hCD4 and hCCR5 under the transcriptional control of cytomegalovirus promoter were designed.MSCs were transfected by the lentiviral vectors at optimum multiplicity of infection.Transduction efficiencies of hCD4 and hCCR5 in MSCs were analyzed by quantitative real-time polymerase chain reaction(RT-PCR),Western blot,and immunofluorescence staining.Subsequently,the transfected human MSCs were infected with HIV-1,and the expression of HIVRNA in the MSCs was detected by RT-PCR.Results The MSCs model con-taining hCD4 and hCCR5 and supporting normal HIV-1 infection was constructed.qRT-PCR showed that MSCs upon infection with lentiviral vectors were highly expressed in hCD4 and CCR5 mRNA sequences(P＜0.01).Western blot detection showed the positive bands of 55.0 × 103 (hCD4) and 40.6 × 103 (hCCR5).The results of immunofluorescence staining revealed that hCD4 and CCR5 were expressed on the surface of MSCs.Such results were not found in cells infected with empty lentiviral vectors.And the susceptibility of the hCD4/CCR5 transgenic MSCs to the HIV-1 was further indicated by the detection of HIV-1 RNA in the culture supernatants and cell lysates(P＜0.05).Conclusion The MSCs model that could highly express hCD4 and hCCR5 was established to support normal HIV-1 infection,which can be used to investigate the development of new therapies and vaccines against HIV.

Objective: To investigate the impact of blood pressure and age on arterial stiffness in general population. Methods: Participants who took part in 2010, 2012 and 2014 Kailuan health examination were included. Data of brachial ankle pulse wave velocity (baPWV) examination were analyzed. According to the WHO criteria of age, participants were divided into 3 age groups: 18-44 years group (n=11 608), 45-59 years group (n=12 757), above 60 years group (n=5 002). Participants were further divided into hypertension group and non-hypertension group according to the diagnostic criteria for hypertension (2010 Chinese guidelines for the managemengt of hypertension). Multiple linear regression analysis was used to analyze the association between systolic blood pressure (SBP) with baPWV in the total participants and then stratified by age groups. Multivariate logistic regression model was used to analyze the influence of blood pressure on arterial stiffness (baPWV≥1 400 cm/s) of various groups. Results: (1)The baseline characteristics of all participants: 35 350 participants completed 2010, 2012 and 2014 Kailuan examinations and took part in baPWV examination. 2 237 participants without blood pressure measurement values were excluded, 1 569 participants with history of peripheral artery disease were excluded, we also excluded 1 016 participants with history of cardiac-cerebral vascular disease. Data from 29 367 participants were analyzed. The age was (48.0±12.4) years old, 21 305 were males (72.5%). (2) Distribution of baPWV in various age groups: baPWV increased with aging. In non-hypertension population, baPWV in 18-44 years group, 45-59 years group, above 60 years group were as follows: 1 299.3, 1 428.7 and 1 704.6 cm/s, respectively. For hypertension participants, the respective values of baPWV were: 1 498.4, 1 640.7 and 1 921.4 cm/s. BaPWV was significantly higher in hypertension group than non-hypertension group of respective age groups (P<0.05). (3) Multiple linear regression analysis defined risk factors of baPWV: Multivariate linear regression analysis showed that baPWV was positively correlated with SBP(t=39.30, P<0.001), and same results were found in the sub-age groups (t-value was 37.72, 27.30, 9.15, all P<0.001, respectively) after adjustment for other confounding factors, including age, sex, pulse pressure(PP), body mass index (BMI), fasting blood glucose (FBG), total cholesterol (TC), smoking, drinking, physical exercise, antihypertensive medications, lipid-lowering medication. (4) Multivariate logistic regression analysis of baPWV-related factors: After adjustment for other confounding factors, including age, sex, PP, BMI, FBG, TC, smoking, drinking, physical exercise, antihypertensive medication, lipid-lowering medication, multivariate logistic regression analysis showed that risks for increased arterial stiffness in hypertension group were higher than those in non-hypertension group, the OR in participants with hypertension was 2.54 (2.35-2.74) in the total participants, and same results were also found in sub-age groups, the ORs were 3.22(2.86-3.63), 2.48(2.23-2.76), and 1.91(1.42-2.56), respectively, in each sub-age group. Conclusion SBP is positively related to arterial stiffness in different age groups, and hypertension is a risk factor for increased arterial stiffness in different age groups. Clinical Trial Registry Chinese Clinical Trial Registry, ChiCTR-TNC-11001489.

Objective:To compare the diagnostic efficiency of colloidal gold dipstick method (PTH dipstick method) with that of doctors’ experience method based on nano-carbon method for rapid identification of parathyroid gland in thyroidectomy of thyroid cancer.Methods:From March to July 2020, 90 patients underwent thyroid surgery in the Friendship Hospital, Capital Medical University participated in the experimental study, and 155 samples underwent empirical judgment, parathyroid dipstick and pathological examination. All operations were performed by senior specialists. SPSS statistics 17.0 software was used for statistical analysis.Results:Seventy-four cases of parathyroid gland confirmed by both pathology and empirical judgment, and 81 cases of non-parathyroid gland confirmed by pathology; 130 cases of parathyroid glands confirmed by both PTH dipstick method and pathology, and 22 cases of non-parathyroid glands confirmed by pathology. The accuracy rate of PTH dipstick method was 85.53% which was much higher than that of empirical judgment method (47.74%). The data were statistically significant ( χ2=49.14, P<0.05). The sensitivity of PTH method was 95.89%, the specificity of PTH method was 75.94%, and the Youden index was 0.7183. The sensitivity of empirical judgment method was 81.3%, the specificity of empirical judgment method was 47.74%, and the Youden index was 0.2904. Conclusions:The diagnostic efficiency of the PTH method is higher than that of empirical judgment method to identify parathyroid gland in thyroid surgery. The two methods can be used together to increase the protection of parathyroid gland during operation.

Objective:To investigate the prognostic factors of differentiated thyroid cancer (DTC) patients with positive thyroglobulin antibody (TgAb) and varying ages after operation and 131I treatment. To explore the value of TgAb level and its change in the prognosis of DTC patients. Methods:Clinical data of 131 TgAb positive DTC patients were retrospectively analyzed. According to age, they were divided into young group(age<55 years, n=95) and elder group (age≥55 years, n=36). According to response, it was divided into excellent response group (110 cases) and non-excellent response group (21 cases). χ2 test and t test were used to compare the clinicopathological features between excellent response group and non-excellent response group. By logistic regression analysis, the independent risk factors affecting the prognosis of patients were analyzed. The receiver operating characteristic curve was used to determine the TgAb value of persistent or recurrent DTC, and the Kaplan-Meier regression curve was used to analyze the time of TgAb becoming negative. P<0.05 was statistically significant. Results:In young patients, the higher serum TgAb level before 131I treatment and the lateral lymph node metastasis were the independent influencing factors of poor prognosis [ OR=0.89(95% CI 0.83-0.95), OR=0.15(95% CI 0.05-0.52); both P<0.05]. In elder group, extraglandular invasion and higher serum TgAb before 131I treatment were associated with poorer prognosis [ OR=0.05(95% CI 0-0.83), OR=0.91(95% CI 0.76-1.13); P<0.05]. The serum TgAb thresholds for predicting DTC persistence/recurrence were 315.5 IU/mL(246.0 IU/mL in the young group and 516.5 IU/mL in the elder group). The mean time TgAb sera turned negative was (26.37±2.22) months [(23.28±2.37) months for young group and (32.64±4.07) months for elder group]. The TgAb decreased >50% in one year of the patients who had a lower probability of disease persistence/recurrence than the group without ( P<0.05). Conclusions:The high level of serum TgAb before 131I treatment and lateral lymph node metastasis were independent factors of poor prognosis in young patients, while in elder patients, extraglandular tumor invasion and the high level of serum TgAb before 131I treatment were independent factors of poor prognosis. The rate of TgAb change one year after treatment may be used as an early marker for predicting the disease status of TgAb positive patients.