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Sun Y, Zhao QX, Li CF, Yang X, Zhang X, Liu CL, Chen ZY. [Analysis on 10 year survival of HIV/AIDS patients receiving antiretroviral therapy during 2003-2005 in Henan province]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2019; 39:966-970. [PMID: 30060313 DOI: 10.3760/cma.j.issn.0254-6450.2018.07.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the survival of HIV/AIDS patients after receiving antiretroviral therapy for 10 year in Henan province and related factors. Methods: The database of national integrated management system of HIV/AIDS was used to collect the basic information and follow-up information of HIV/AIDS patients who received antiretroviral therapy between 2003 and 2005 in Henan province. Software SPSS 23.0 was used to analyze the patients' survival and related factors based on the life-table method and Cox proportional hazards model. Results: Among the 2 448 HIV/AIDS patients who started antiretroviral therapy during 2003-2005, the men accounted for 53.5%, and women accounted for 46.5%. Up to 70.1% of the patients were aged 40-59 years and 95.5% of the patients had blood borne infections. The patients were observed for 10 years after antiviral treatment, and 719 cases died from AIDS related diseases, with a mortality rate of 3.78/100 per year (719/19 010 per year). The cumulative survival rates of patients within 1-year, 3 years, 5 years and 10 years were 0.94, 0.86, 0.78, 0.69 respectively. Compared with the patients aged <40 years, the HRs of the patients aged 40-, 50-, 60- and ≥70 years were 1.417 (95%CI: 0.903-2.222), 1.834 (95%CI: 1.174-2.866), 2.422 (95%CI: 1.539-3.810) and 3.424 (95%CI: 2.053-5.709) respectively. Compared with patients with baseline CD(4+)T lymphocyte >350 unit/ul, the HRs of the patients with CD(4+)T lymphocyte <50 unit/μl, 50-199 unit/ul and 200-350 unit/ul were 7.105 (95%CI: 5.449-9.264), 4.175 (95%CI: 3.249-5.366) and 2.214 (95%CI: 1.691-2.900) respectively. Compared with the women, the HR of the men was 1.480 (95%CI: 1.273-1.172). Compared with the patients who received second line ART therapy, the HR of patients receiving no second line therapy was 11.923 (95%CI: 9.410-15.104). Conclusions: The cumulative survival rate the HIV/AIDS patients after 10 years of antiretroviral therapy reached 0.69 in Henan. Male, old age, low basic CD(4+)T lymphocyte count and receiving no second line therapy were the risk factors for long-term survival of AIDS patients.
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Li L, Ding L, Lyu YJ, Wang M, Liu CL, Han Y, Wang JT. [Interaction between vaginal micro-environment alterations and HPV16 infection in cervical intraepithelial neoplasia]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2019; 39:1486-1490. [PMID: 30462959 DOI: 10.3760/cma.j.issn.0254-6450.2018.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of vaginal micro-environment alterations and HPV16 infection and their interaction in the progression of cervical intraepithelial neoplasia. Methods: The participants of this study came from the cervical lesions study cohort in Shanxi province, including 623 women with normal cervical (NC), 303 patients with pathogenically diagnosed low-grade cervical intraepithelial neoplasia (CINⅠ) and 93 patients with pathogenically diagnosed high-grade cervical intraepithelial neoplasia (CINⅡ/Ⅲ). The data of the demographic characteristics of the study subjects and factors related to cervical intraepithelial neoplasia were collected, and HPV16 infection were detected by using flow-through hybridization technology and H(2)O(2), β-glucuronidase, clotting enzyme, neuraminidase and leucocyte esterase in vaginal secretions were detected by using the combined detection kit of aerobic vaginitis and bacterial vaginosis. pH value and vaginal cleanliness were also detected at the same time. The database was established and analyzed by SPSS statistical software (version 22.0). Results: The HPV16 infection rate (trend χ(2)=55.45, P<0.001) and the abnormal rates of H(2)O(2) (trend χ(2)=26.19, P<0.001), pH (trend χ(2)=5.06, P=0.024), vaginal cleanliness (trend χ(2)=19.55, P<0.001), β-glucuronidase (trend χ(2)=17.52, P<0.001) and neuraminidase (trend χ(2)=14.90, P<0.001) increased gradually along with the severity of cervical intraepithelial neoplasia, but the abnormal rates of clotting enzyme and leucocyte esterase showed no same trend. The results of GMDR model analysis showed that there was interaction between HPV16 infection and abnormalities of H(2)O(2), β-glucuronidase, clotting enzyme and neuraminidase in CINⅠ group, and the interaction between HPV16 infection and the abnormalities of vaginal cleanliness, H(2)O(2), β-glucuronidase and neuraminidase in CIN Ⅱ/Ⅲ group. Conclusion: Our findings indicated that the vaginal micro-environment alterations and HPV16 infection could increase the risk of cervical intraepithelial neoplasia, and they might have an important synergistic effect in the progression of cervical intraepithelial neoplasia.
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Qing SM, Chen RK, Liu H, Zhang S, Kuang AL, Su XF, Liu CL, Zhang NF. [Comparison of the NoSAS score with four different questionnaires as screening tools for obstructive sleep apnea-hypopnea syndrome]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2019. [PMID: 29518851 DOI: 10.3760/cma.j.issn.1001-0939.2018.03.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the clinical utility of the NoSAS score in the screening of patients with obstructive sleep apnea-hypopnea syndrome(OSAHS), and to compare the performance of the NoSAS score with other tools including Epworth Sleepiness Scale(ESS), STOP, STOP-Bang(SBQ) and Berlin questionnaires. Methods: A total of 444 consecutive patients(328 males and 116 females) with suspected OSAHS who underwent an overnight polysomnography(PSG) were recruited into this study. Five questionnaires including the NoSAS score, ESS, STOP, SBQ and Berlin were completed. Based on the severity of OSAHS which was determined by apnea-hypopnea index(AHI), the patients were classified into 4 groups: normal(<5 events/h), mild(5-15 events/h), moderate(15-30 events/h) and, severe (≥30 events/h) OSA.Sensitivity, specificity, positive predictive values, negative predictive values and the area under the receiver operating characteristics curve of 5 questionnaires were calculated. Results: With AHI≥5 events/h as the standard diagnosis of OSAHS, the NoSAS score and SBQ questionnaire showed a moderate performance, with the NoSAS score having the largest area under the ROC curve(0.753, P<0.001), followed by the SBQ questionnaire (0.727, P<0.001). The performance of the ESS, Berlin, and the STOP questionnaire was not high. Using mild moderate-severe(≥5 events/h), moderate-severe(≥15 events/h), and severe(≥30 events/h)OSAHS as cutoffs, NoSAS had the highest specificity and positive predictive values(80.2% and 88%, 72% and 69.8%, 66.3% and 50.5%), and the sensitivity and negative predictive values were (51.5% and 36.9%, 56.5% and 59.1%, 66.3% and 74.2%) .SBQ had the highest sensitivity and the negative predictive values(80.2% and 88%, 72% and 69.8%, 66.3% and 50.5%), and the specific and positive predictive values were (45.7% and 81.0%, 39.1% and 61.9%, 34.8% and 44.4%). The NoSAS score ≥ 7 had higher sensitivity and negative predictive value(75.0% and 47.1%, 78.1% and 66.5%, 82.7% and 81.9%)than the NoSAS socre ≥ 8. With AHI≥5 events/h as the standard diagnosis of OSAHS, the NoSAS score and the SBQ questionnaire had a higher accuracy than the other 3 questionnaires as screening questionnaires for diagnosing OSAHS, and the value of DOR were 4.298 and 3.758 respectively. Conclusions: The NoSAS score and the SBQ questionnaire have a moderate performance in diagnosing OSAHS. The NoSAS score is a new screening tool, and it is similar to the SBQ questionnaire, being also simple and effective. While the SBQ questionnaire is more widely used, it is necessary to further evaluate the diagnostic value of NoSAS score.
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Hong C, Li JY, Chen RK, Liu CL, Wang XN, Qing SM, Su XF, Zhang NF. [Correlation between peripheral venous oxygen saturation and hemodynamic parameters in patients with pulmonary hypertension]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2019; 41:37-40. [PMID: 29343014 DOI: 10.3760/cma.j.issn.1001-0939.2018.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the correlation of peripheral venous oxygen saturation (SpvO(2)) with mixed venous oxygen saturation (SvO(2)), pulmonary vascular resistance (PVR) and cardiac index (CI) in patients with pulmonary hypertension (PH), in order to predict these parameters using SpvO(2) and assess the prognosis of patients. Methods: Hospitalized patients diagnosed with PH by right heart catheterization in the Guangzhou Institute of Respiratory Diseases from July 2015 to October 2016 were retrospectively analyzed. Parameters during the right heart catheterization, including SvO(2,)SpvO(2,)cardiac output (CO) and mean pulmonary arterial pressure (mPAP) were recorded, while CI, PVR and other parameters were indirectly calculated. The correlation between SpvO(2) and SvO(2,)CO, CI, mPAP, PVR and other parameters were respectively analyzed and compared between groups. Results: A total of 77 PH patients were selected, which comprised of 39 males and 38 females. The results revealed that SpvO(2) was correlated positively with SvO(2,)CI and PaO(2) (P<0.05), but negatively with PVR, total pulmonary resistance (TPR), systemic vascular resistance, right atrial diameter and right ventricular diameter (P<0.05). In the group with SpvO(2) <65%, the dilation of the right atrium and right ventricle was more significant, the WHO heart function grade was worse, CI, systemic systolic pressure and mean systemic pressure were lower, and PVR and TPR were higher, as compared to those in the group with SpvO(2) ≥65%. (P<0.05). Conclusions: There was good consistency between SpvO(2) and SvO(2). Furthermore, SpvO(2) could indirectly reflect the CI, PVR and changes in right heart structure of PH patients, providing reference for the clinical prediction of CI and PVR, as well as the prognosis of PH patients, through the use of SpvO(2). Low SpvO(2) indicated a severe condition and poor prognosis.
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Ding L, Feng MJ, Liu CL, Wang L, Song ZC, Yang Q, Li XX, Song L, Gao W, Wang JT. [Effect of hnRNP K and its interaction with HPV16 on cervical intraepithelial neoplasia]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2018; 39:1630-1635. [PMID: 30572391 DOI: 10.3760/cma.j.issn.0254-6450.2018.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of heterogeneous nuclear ribonucleoprotein K (hnRNP K) and its interaction with human papillomavirus 16 (HPV16) on cervical intraepithelial neoplasia (CIN). Methods: The participants included 67 women with normal cervix (NC), 69 women with CINⅠ and 68 women with CINⅡ/Ⅲ in a community cohort of pathologically diagnosed women established in Jiexiu of Shanxi province, from June 2014 to June 2015. A structured questionnaire was used to collect the demographic data of the subjects and the related factors of cervical lesions. Cervical exfoliated cells and cervical tissues from biopsy or surgery were selected. The infection status of HPV16 was detected by flow-through hybridization. The protein expression levels of hnRNP K were evaluated by Western blot. SPSS 23.0 software was used to collate and analyze the data. To study the differences in demographic characteristics, related factors, hnRNP K protein and HPV16 infection among NC, CINⅠand CINⅡ/Ⅲgroups, χ(2) test, trend χ(2) test, and Kruskal-Wallis H test were conducted. Multiple comparisons of hnRNP K protein in three groups were completed by using the Bonferroni method. The OR and its 95%CI of hnRNP K, HPV16 and CIN were calculated by using the unconditional logistic regression models. Two-way interactions between hnRNP K protein and HPV16 infection on CIN were analyzed by using additive model and related indicators. Results: HPV16 infection rates were 10.4% in women with normal cervix, 14.5% in women with CINⅠ and 41.2% in women with CINⅡ/Ⅲ, respectively. The differences among three groups were significant (P<0.001). Moreover, the infection rates of HPV16 gradually increased with the increasing severity of CIN (trend χ(2)=18.512, P<0.001). The differences in protein expression of hnRNP K among three groups were significant (H=48.138, P<0.001) and the expressionincreased with the development of cervical lesionss (trend χ(2)=21.765, P<0.001). Results from the interaction analysis indicated that there were additive effects between high expression of hnRNP K protein and HPV16 in CINⅡ/Ⅲ group compared with normal group (API=0.639, 95%CI: 0.083-1.196). In contrast, no such additive effect was found in CINⅠ group. Conclusions: HPV16 infection and over-expression of hnRNP K protein were associated with the increased risk of cervical intraepithelial neoplasia. There might be interaction between hnRNP K protein overexpression and HPV16 infection existed on the progress of CINⅡ/Ⅲ.
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Liu CL, Zhang F, Cai Q, Shen YY, Chen SQ. Establishment of a Predictive Model for Surgical Resection of Ground-Glass Nodules. J Am Coll Radiol 2018; 16:435-445. [PMID: 30466899 DOI: 10.1016/j.jacr.2018.09.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 09/19/2018] [Indexed: 12/17/2022]
Abstract
PURPOSE To establish a predictive model for surgical resection of invasive pulmonary adenocarcinoma (IPA) presenting as ground-glass nodules (GGNs) based on a radiomics nomogram. METHODS The CT images of 239 patients with GGNs were collected, of which 160 cases were included in the training set to construct the predictive model and 79 cases were included in the validation set to verify the established predictive model. The least absolute shrinkage and selection operator algorithm was used to select the radiomic features and construct the radiomics tagging. The predictive model for the surgical resection of IPA was constructed using the radiomics nomogram. RESULTS The presence of IPA showed significant correlations with seven radiomics features (P < .01), which were the independent predictors. The predictive model constructed using the radiomics features performed well on the training set (area under the curve [AUC] 0.792, 95% confidence interval [CI]: 0.720-0.864) and the validation set (AUC 0.773, 95% CI: 0.668-0.877). The predictive model constructed using the clinical information alone was relatively less effective (AUC 0.711, 95% CI: 0.634-0.787). The predictive model constructed by integrating the radiomics features into the clinical information using the radiomics nomogram showed the best predictive ability and calibration in the training set (AUC 0.831, 95% CI: 0.765-0.897) and the validation set (AUC 0.816, 95% CI: 0.724-0.909). Decision curve analysis showed that radiomics nomogram has a certain clinical value. CONCLUSION The predictive model for surgical resection of IPA constructed by integrating the radiomics features and the clinical information based on the radiomics nomogram can help clinicians control the operative node and reduce the occurrence of overtreatment.
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Liu XG, Li JY, Liu CL, Wang XN, Cui JY, Zhang NF, Hong C. [Analysis of the characteristics of electrocardiogram in patients of different genders with pulmonary hypertension]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2018; 41:728-733. [PMID: 30196608 DOI: 10.3760/cma.j.issn.1001-0939.2018.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the characteristics of ECG in patients with pulmonary hypertension(PH) and explore their correlation with pulmonary vascular resistance(PVR), mean pulmonary arterial hypertension(mPAP) and cardiac index(CI). Methods: A total of 186 patients with right heart catheterization were enrolled in the Department of Respiratory of the First Affiliated Hospital of Guangzhou Medical University from August 2015 to October 2017. Patients with normal pulmonary artery pressure, incomplete clinical data and repeated examinations were excluded and there were 101 patients with pulmonary hypertension included. The results of ECG parameters and right heart catheterization were collected to analyze the ECG characteristics of patients with different genders and their correlation with PVR, mPAP and CI. Results: Among all PH patients, the duration of QRS axial in male group was significantly longer than that of the female group [(110.38±15.829) vs. (98.63±18.041) ms, P<0.001], and the S wave amplitude in V5 was significantly higher compared to female group [(1.304±1.356) vs. (0.648±0.663) mv, P<0.001]. Their heart rate-corrected QT interval (QTc), QRS axis, S wave amplitude in Ⅰ, S and R wave amplitude in V1, R/S ratio in V1, S wave amplitude V5, all had a correlation with their PVR and the S wave amplitude in V1 was negatively correlated with PVR (r=-0.441, P<0.001). In the male group, PVR was not correlated with R/S ratio in V1 and S wave amplitude in V5. While PVR in the female group was significantly correlated with QTc, R wave amplitude in V1, R / S ratio in V1. In all PH patients, their P wave duration in Ⅱ, QRS axis and S wave amplitude in Ⅰ, S wave and R wave amplitude in V1, S wave amplitude in V5, QTc, R/S ratio in V1, all had correlations with mPAP (P<0.05). In male group, mPAP was not correlated with QTc, P wave duration in Ⅱ, and the S wave amplitude in V5 (P>0.05). The mPAP in the female group was only related to the S wave and R wave amplitude in V1, and S amplitude in Ⅰ and S wave amplitude in V5 (P<0.05). The CI was positively correlated with the S wave amplitude in V1 (r=0.34, P<0.001), and negatively correlated with the QRS axis (r=-0.219, P=0.04); CI in male group was not correlated with QRS axis(P=0.073), but correlated with QTc (r=-0.296, P=0.044). Conclusion: There were gender differences in QRS duration and S wave amplitude in V5 in patients with pulmonary hypertension. The QRS axis and the S wave amplitude in V1 were related to the heart index. There was a difference in the correlation between ECG and PVR, mPAP and CI in patients of different genders with pulmonary hypertension.
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Meng Y, Liu CL, Cai Q, Shen YY, Chen SQ. Contrast analysis of the relationship between the HRCT sign and new pathologic classification in small ground glass nodule-like lung adenocarcinoma. Radiol Med 2018; 124:8-13. [PMID: 30191447 DOI: 10.1007/s11547-018-0936-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 08/23/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE To perform contrast analysis of the relationship between high-resolution computed tomography (HRCT) signs and new pathologic classification of small GGNs-like lung adenocarcinoma. MATERIALS AND METHODS The HRCT data from 145 pathologically confirmed cases of small GGNs of lung adenocarcinoma were analysed retrospectively. The 145 cases of GGNs were divided into pre-invasive (PI) group (n = 46), micro-invasive adenocarcinoma (MIA) group (n = 48), and invasive adenocarcinoma (IAC) group (n = 51). HRCT imaging sign of GGNs in each group was assessed and compared. RESULTS Significant differences in GGN size were found among the three groups (P < 0.05). The presence of a tumour-lung interface in the MIA and IAC groups was significantly higher than that in the PI group (P < 0.05), but no significant difference was found between the MIA and IAC groups. The presence of a pleural indentation sign in the IAC group was significantly higher than that in the other two groups (P < 0.05), but no significant difference was noted between the latter two groups. Significant differences were found in the lobulated and spicule signs among the three groups (P < 0.05). The presence of a microvascular sign in the MIA and IAC groups was significantly higher than that in the PI group (P < 0.05). No significant difference was found in the GGN density, vacuole sign, air bronchus sign and notch sign among the three groups. CONCLUSIONS The HRCT signs of GGNs could be used to differentiate among pre-invasive lesions, micro-invasive lesions and invasive lung adenocarcinoma.
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Wang M, Ding L, Liu XZ, Liu CL, Li L, Lyu YJ, Wang JT. [Interaction between polycyclic aromatic hydrocarbons and high risk human papillomavirus infection on cervical intraepithelial neoplasia]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2018; 39:673-677. [PMID: 29860816 DOI: 10.3760/cma.j.issn.0254-6450.2018.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To evaluate the effects of polycyclic aromatic hydrocarbons (PAHs) and high risk human papillomavirus (HR-HPV) infection and their interaction on the progression of cervical intraepithelial neoplasia. Methods: A total of 486 patients, including 208 women with normal cervix (NC), 154 patients with low-grade cervical intraepithelial neoplasm (CINⅠ), 124 patients with high-grade cervical intraepithelial neoplasm (CINⅡ/Ⅲ), were selected from the cervical lesions cohort from June to December, 2014. HR-HPV was detected by using flow-through hybridization technology and the urine concentration of 1-hydroxypyrene (1-OHP) was detected with high performance liquid chromatography. By using software SPSS 22.0, the χ(2) test, trend χ(2) test, Kruskal-Wallis H test, Nemenyi rank test and Spearman rank correlation analysis were performed. And the interaction effects were evaluated by additive model. Results: The HR-HPV infection rates in NC, CINⅠ and CINⅡ/Ⅲ groups were 27.9%, 37.0% and 58.9%, respectively. The urine concentrations of 1-OHP (μmol/molCr) were 0.07±0.09, 0.11±0.10 and 0.17±0.15, respectively. With increasing severity of the cervical lesions, the HR-HPV infection rate gradually increased (trend χ(2)=29.89, P<0.001) and the high exposure rate of PAHs gradually increased (trend χ(2)=27.94, P<0.001). HR-HPV infection was positively correlated with 1-OHP exposure (r=0.680, P<0.001). There was a positive additive interaction between HPV infection and PAHs exposure in CIN Ⅱ/Ⅲ group, but it was not found in CIN Ⅰ group. Conclusion: Both HR-HPV infection and high exposure of PAHs might increase the risk of cervical intraepithelial neoplasm, and might have a synergistic effect on the progression of high-grade cervical intraepithelial neoplasia.
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Liu CL, Yan L, Cai KR, Sun K, Qi Y, Han YL, Zhang XD, Sun XD. Effects of soybean isoflavones on Wnt/β-catenin and the TGF-β1 signaling pathway in renal tissue of type 2 diabetic rats. J BIOL REG HOMEOS AG 2018; 32:455-464. [PMID: 29921370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To observe the effect of Soyisoflavones (SI) on the expression of Wnt/β-catenin signaling pathway elements, transforming growth factor-β (THGF-β) and its related proteins in the renal interstitia of diabetic nephropathic (DN) rats, 48 DN rats were randomly divided into 4 groups: DN model group (group DN), soybean isoflavone treatment group (group DA), DN model group + losartan treatment group (group DL), DN model group + soybean isoflavones combined with losartan treatment group (group SL). Each group comprised 12 rats. Twelve healthy Wistar rats were selected as normal controls (group N). After 12 weeks of continuous administration of soybean isoflavone or losartan or those two combined, the body weight of rats was recorded and serum urea nitrogen (BUN) and creatinine (Scr) were measured. The expression of Wnt4, β-catenin, and TGF-β1 proteins, as well as mRNA, in the renal interstitium were detected by immunohistochemistry and real-time quantitative PCR (FQ-PCR). In all the groups, Wnt4, β-catenin and TGF-β1 protein were only expressed in renal interstitial and renal tubular epithelial cells. There was no significant difference between group DA and group DL (P>0.05). FQ-PCR results showed that Wnt4, β-catenin and TGF-β1 mRNA were consistent with the expression of these proteins in the renal tissue of each group. Soy isoflavones can reduce 24-h urinary protein quantification, alleviate renal interstitial pathological damage, and regulate the expression of Wnt4, β-catenin and TGF-β1 in the renal interstitium. This suggests that soybean isoflavones could delay the process of renal interstitial fibrosis in DN rats by decreasing the expression of Wnt4, β-catenin and TGF-β1 in the renal interstitium, thus demonstrating that soybean isoflavones plus losartan have the best protective effects against diabetes-induced renal fibrosis.
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Zhang DJ, Liu CL, Yu XD, Tong DM. Estimating Coherence Measures from Limited Experimental Data Available. PHYSICAL REVIEW LETTERS 2018; 120:170501. [PMID: 29756821 DOI: 10.1103/physrevlett.120.170501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 11/06/2017] [Indexed: 06/08/2023]
Abstract
Quantifying coherence has received increasing attention, and considerable work has been directed towards finding coherence measures. While various coherence measures have been proposed in theory, an important issue following is how to estimate these coherence measures in experiments. This is a challenging task, since the state of a system is often unknown in practical applications and the accessible measurements in a real experiment are typically limited. In this Letter, we put forward an approach to estimate coherence measures of an unknown state from any limited experimental data available. Our approach is not only applicable to coherence measures but can be extended to other resource measures.
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Chen ZY, Zhao QX, Li CF, Liu CL, Yang X, Zhang X, Sun Y. [Survival time of HIV/AIDS death cases after antiretroviral therapy and related factors in Henan province, 2003-2015]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2018; 38:1514-1517. [PMID: 29141340 DOI: 10.3760/cma.j.issn.0254-6450.2017.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze and investigate the survival time of dead HIV/AIDS patients after antiretroviral therapy (ART) and related factors in Henan province. Methods: The database of national integrated management system of HIV/AIDS was used to collect the information of dead patients who received ART between January 2003 and December 2015. Software SPSS 23.0 was used to analyze the survival time of dead patients and related factors. Result: A total of 6 267 AIDS patients died after ART and the average survival time was 23.85 months (Q(R): 6.87-50.46 months). Within 6 months, 7-12 months and 13-24 months after ART, the numbers of dead patients were 1 441 (23.00%), 652 (10.40%) and 1 052 (16.79%), respectively. The number of dead cases decreased after 24 months of ART. The number of AIDS-related deaths was 5 085 (81.1%); and 799 (12.7%) deaths were due to other causes, in which 179 (2.9%) were caused by accidents and 109 (1.7%) were caused by suicides. The differences in annual composition ratio of death causes during 2003-2015 had significance (χ(2)=864.27, P<0.01). Twelve months, 36 months, 60 months and 120 months after ART, the survival ratios were 66.59%, 36.62%, 19.24% and 0.64% respectively. Compared with patients infected through blood donation, the HR of the patients infected through sexual transmission was 1.602 (95%CI: 1.483-1.732). Compared with patients with initial level of CD(4)(+)T lymphocyte ≥350 unit/μl, the HR of patients with initial level of CD(4)(+)T lymphocyte<50 unit/μl was 2.320 (95%CI: 2.119-2.539). Compared with patients receiving second line ART, the HR of patients receiving no second line ART was 3.312 (95%CI: 3.083-3.558). Conclusion: The AIDS related deaths mainly occurred in the first six months after ART. As the increase of duration of ART, the death rate decreased. Sexual transmission, low initial level of CD(4)(+)T lymphocyte and receiving no second line ART were the risk factors for the deaths of HIV/AIDS patients.
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Qu Y, Wang B, Chu B, Liu C, Rong X, Chen H, Peng J, Qian Z. Injectable and Thermosensitive Hydrogel and PDLLA Electrospun Nanofiber Membrane Composites for Guided Spinal Fusion. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4462-4470. [PMID: 29338185 DOI: 10.1021/acsami.7b17020] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Spinal fusion is the classic treatment to achieve spinal stability for the treatment of the spinal disease. Generally, spinal fusion still has to combine a certain of bone matrix for promoting bone formation to achieve the desired fusion effect based on the surgery, including the traditional bone matrix, such as the autologous bone, allografts and xenografts. Nevertheless, some problems still existed such as the immunogenic problems, the secondary wound, and pathogenic transfer and so on. Here the injectable thermosensitive hydrogel could substitute to avoid the problems as a potential biological scaffold for tissue engineering. Once injected, they could fill in the irregular-shaped cavity and change to a gel state at physiological temperature. We wanted to design the collagen/n-HA/BMP-2@PCEC/PECE hydrogel composites based on previous work about collagen/n-HA/PECE hydrogel to exhibit better performance in guiding spinal fusion because of the addition of BMP-2@PCEC nanoparticles (PCEC, PCL-PEG-PCL). However, when the hydrogels were injected, one of the surfaces was in contact with the spine, but others were in contact with soft tissue like muscles and fascia. The release behavior was the same at the different surfaces, so the factors could be released into the soft tissue, and it may then be consumed or lead to ectopic bone formation. The hydrogel composites should be improved to adjust the direction of the releaser behavior. In consequence, we wrapped an electrostatic spinning nanofiber membrane possessing hydrophobicity around the hydrogels. In this study, we developed a system that the collagen/n-HA/BMP-2@PCEC/PECE hydrogels were wrapped with the hydrophobicity PDLLA electrospun nanofiber membrane, setting up a barrier between the hydrogels and the soft tissue. The system could exhibit biocompatibility, preventing the factors from escaping to keep their retention in the needed places of osteogenesis; the results demonstrated that it showed an excellent effect on spinal fusion.
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Chen SQ, Huang M, Liu CL, Shen YY, Cai Q, Wang PJ. [Differentiation of induced pluripotent stem cells into neural stem cells induced by brain-derived neurotrophic factor via Wnt/β-catenin and extracellular signal-regulated kinase/mitogen-activated protein kinases signal pathway]. ZHONGHUA YI XUE ZA ZHI 2017; 97:3263-3268. [PMID: 29141367 DOI: 10.3760/cma.j.issn.0376-2491.2017.41.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the mechanism of brain-derived neurotrophic factor (BDNF) promoting induced pluripotent stem cells (iPSCs) to differentiate into neural stem cells (NSCs) via Wnt/β-catenin and extracellular signal-regulated kinase/mitogen-activated protein kinases (ERK/MAPK) signal pathways. Methods: iPSCs were cultured and identified. The iPSCs were induced to differentiate into NSCs by BDNF and retinoic acid (RA). Nestin was detected by immunofluorescence and flow cytometry after iPSCs differentiated. The technique of small interfering RNA (siRNA) was used to silence the gene expression of β-catenin and ERK, and iPSCs were divided into control group, BDNF group (adding 10 μg/L BDNF), siRNA-ERK/BDNF group (transfected with siRNA-ERK and adding 10 μg/L BDNF) and siRNA-β-catenin/BDNF group (transfected with siRNA-β-catenin and adding 10 μg/L BDNF). Real-time polymerase chain reaction (RT-PCR) and Western blotting were used to detect the mRNA and protein expression of key elements of Wnt/β-catenin and ERK/MAPK signaling pathways, included β-catenin, ERK1/2, c-fos, c-jun, and c-myc. The least significant difference test was used when data were compared between groups. Results: The immunofluorescence showed that iPSCs expressed octamer-binding transcription factor-4 (Oct4), SRY-related HMG box protein-2 (Sox2) and Nanog genes. The flow cytometry showed that Nestin-positive cells were 78.7% for BDNF and 43.5% for RA, and it was only 7.8% for routine medium. Compared with those in the control group, the mRNA expression of β-catenin, ERK1/2, c-fos, c-jun, and c-myc in the BDNF group were upregulated significantly (t=2.80, 2.318, 2.255, 1.799, 1.582, 1.663, all P<0.05), and the same results were acquired with the protein expression (t=2.805, 2.318, 2.255, 1.799, 1.582, 1.663, all P<0.050). Compared with those in BDNF group, the mRNA and protein expression of ERK1/2 in siRNA-ERK/BDNF group down-regulated obviously (t=1.917, 2.042, 1.673, 1.540, all P<0.05), and the mRNA and protein expression of c-fos and c-jun were down-regulated (t=1.022, 0.907, 0.848, 0.801, all P<0.05). However, the mRNA and protein expression of β-catenin and c-myc were not suppressed by siRNA-ERK (t=0.216, 0.185, 0.097, 0.112, all P>0.05). In siRNA-β-catenin/BDNF group, the mRNA and protein expression of β-catenin and c-myc was obviously down-regulated when compared with those in BDNF group (t=3.104, 2.774, 2.235, 1.911, all P<0.05), and expression of ERK1/2, c-fos and c-jun were down-regulated too (t=0.776-1.192, all P<0.05). Conclusion: BDNF promotes the differentiation of iPSCs by activating Wnt/β-catenin and ERK/MAPK signal pathway, there should be cross-talk between the two signal pathways, and c-fos and c-jun may be common nuclear transcription factors.
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Kuang F, Zhang Z, Chen B, Liu CL, Zhao YY, Xu ZR, Li XJ. [The expression of SnoN in human hypertrophic scar fibroblasts and the mechanism of its participation in hypertrophic scar formation]. ZHONGHUA SHAO SHANG ZA ZHI = ZHONGHUA SHAOSHANG ZAZHI = CHINESE JOURNAL OF BURNS 2017; 33:634-638. [PMID: 29056026 DOI: 10.3760/cma.j.issn.1009-2587.2017.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of SnoN in human hypertrophic scar fibroblasts and the mechanism of its participation in hypertrophic scar formation. Methods: Eight patients with hypertrophic scar after burn in need of surgery were admitted in our unit from January to October 2013, and then hypertrophic scar tissue and normal skin tissue of full-thickness skin donor site resected by surgery of the patients were collected. Hypertrophic scar fibroblasts and normal skin fibroblasts of patients were isolated with method of explant culture and then sub-cultured. Cells of the third to fifth passage were used in the following experiments. (1) The protein expressions of SnoN of hypertrophic scar fibroblasts and normal skin fibroblasts were assessed with Western blotting. (2) The mRNA expressions of SnoN of another batch of hypertrophic scar fibroblasts and normal skin fibroblasts were determined with reverse transcription polymerase chain reaction. (3) Another batch of hypertrophic scar fibroblasts and normal skin fibroblasts were treated with 10 ng/mL transforming growth factor beta1 (TGF-β(1)) for 30 min, 1 h, 2 h, and 6 h, respectively, and then the protein expressions and mRNA expressions of SnoN of untreated cells and treated cells were detected as above. Data were processed with one way analysis of variance and independent sample t test. Results: (1) The protein expression of SnoN of hypertrophic scar fibroblasts was 0.020±0.003, significantly lower than that of normal skin fibroblasts (0.032±0.005, t=7.19, P<0.05). (2) The mRNA expression of SnoN of hypertrophic scar fibroblasts was 0.407±0.157, with no significant difference from that of normal skin fibroblasts (0.339±0.095, t=-1.29, P>0.05). (3) The protein expression of SnoN of normal skin fibroblasts was increased in a time-dependent fashion with the TGF-β(1) stimulation, and the protein expressions of SnoN of cells treated with TGF-β(1) for 30 min, 1 h, 2 h, and 6 h were significantly higher than those of untreated cells (with t values from 2.27 to 27.89, P values below 0.05). The protein expression of SnoN of hypertrophic scar fibroblasts was decreased in a time-dependent fashion with the TGF-β(1) stimulation, and the protein expressions of SnoN of cells treated with TGF-β(1) for 30 min, 1 h, 2 h, and 6 h were obviously lower than those of untreated cells (with t values from 10.80 to 13.85, P values below 0.05). (4) The mRNA expressions of SnoN of normal skin fibroblasts and hypertrophic scar fibroblasts were both increased in a time-dependent fashion with the TGF-β(1) stimulation, and the mRNA expressions of SnoN of the two types of cells treated with TGF-β(1) for 30 min, 1 h, 2 h, and 6 h were both significantly higher than those of untreated cells (with t values from 18.16 to 58.22, P values below 0.05). Conclusions: The protein expression of SnoN in hypertrophic scar fibroblasts is reduced, which weakens its inhibitory effect on TGF-β(1) signal, thus amplifying the TGF-β(1) signal, and it may participate in the formation of hypertrophic scar.
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Yu HM, Zhu BJ, Sun Y, Wei GQ, Wang L, Qian C, Nadeem Abbas M, Liu CL. Characterization and functional analysis of serpin-1 like gene from oak silkworm Antheraea pernyi. BULLETIN OF ENTOMOLOGICAL RESEARCH 2017; 107:620-626. [PMID: 28228181 DOI: 10.1017/s000748531700013x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Serpins are a broadly distributed family of proteases found in various organisms that play an important role in regulating the immune response. Here, we identified a serpin-1 gene from Antheraea pernyi that encodes a 279 amino acid protein with a molecular weight of 30.8 kDa. We expressed the recombinant Ap-serpin-1 protein in Escherichia coli and used the purified protein to prepare rabbit anti-Ap-serpin-1 polyclonal antibodies. We calculated the enzyme-linked immunosorbent assay titer of the antibody as 1:128000. Quantitative real-time polymerase chain reaction analysis revealed that Ap-serpin-1 was expressed in all examined tissues, including hemolymph, malpighian tubules, midgut, silk gland, integument and the fat body; the highest Ap-serpin-1 expression levels was detected in the fat body. We next investigated the expression patterns of Ap-serpin-1 in both fat body and hemolymph samples, following treatment with E. coli, Beauveria bassiana, Micrococcus luteus and nuclear polyhedrosis virus (NPV). We reported that NPV and M. luteus significantly enhanced Ap-serpin-1 expression in the fat body. While, in the hemolymph samples, treatment with B. bassiana and M. luteus was shown to upregulate Ap-serpin-1 expression at 24 h induction. Altogether, our results suggest that Ap-serpin-1 is involved in the innate immunity of A. pernyi.
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Wang J, Ci YB, Liu CL, Sun HM. Mac-1 deficiency induces respiratory failure by affecting type I alveolar epithelial cells. GENETICS AND MOLECULAR RESEARCH 2017; 16:gmr-16-03-gmr.16039045. [PMID: 28873200 DOI: 10.4238/gmr16039045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
As a β2 integrin family member, Mac-1 plays an important role in the inflammatory response. Inflammation and lung injury are closely associated, but the involvement of Mac-1 in the occurrence and development of such pathologies remains poorly understood. We aimed to investigate the relationship between Mac-1 deficiency and respiratory failure in Mac-1 knockout {Mac-1-/-} mice, using C57BL/6J mice as a control. The newborn survival rate of Mac-1-/- mice was calculated, and mouse lung tissue was treated with hematoxylin and eosin and subjected to immunofluorescent staining. Moreover, western blotting and immunohistochemistry were used to detect the expression of molecules specific to type I and type II alveolar epithelial cells, as well as alveolar surfactant proteins secreted by the latter. Survival of Mac-1-/- pups was significantly lower than that of newborn C57BL/6J mice. In a float test, lung tissues from C57BL/6J mice were buoyant, whereas those of Mac-1-/- mice were not. Compared with C57BL/6J mice, expression of proSP-C {specific to type II alveolar epithelial cells} and alveolar surfactant proteins in Mac-1-/- mice was not significantly different, implying that type II cell function was unaltered. However, western blotting revealed expression of T1α, Aqp5, and Snx5 {type I alveolar epithelial cell markers} in Mac-1-/- mice to be significantly decreased {P < 0.05}. In conclusion, Mac-1 may play an important role in respiratory failure. Its absence leads to this condition not by influencing type II alveolar epithelial cells or their secreted surfactant proteins, but rather by reducing type I alveolar cell numbers.
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Wang L, Liu XZ, Ren ZY, Ding L, Nan J, Liu CL, Song ZC, Feng MJ, Yang Q, Wang JT. [Interaction between polycyclic aromatic hydrocarbons and p16, FHIT gene CpG island methylation in patients with cervical intraepithelial neoplasias]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2017; 38:1113-1117. [PMID: 28847065 DOI: 10.3760/cma.j.issn.0254-6450.2017.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of polycyclic aromatic hydrocarbons (PAHs) and p16, FHIT gene CpG island methylation, as well as their interaction in cervical intraepithelial neoplasias. Methods: Objects of this study were from a cohort of cervical lesions study in Yangqu county of Shanxi province. All the patients were diagnosed pathologically, that including 83 patients with high-grade cervical intraepithelial neoplasia (CINⅡ/Ⅲ), 86 patients with low-grade cervical intraepithelial neoplasia (CINⅠ) and another 91 women under normal cervical (NC) condition. 1-hydroxy pyrene in the urine was detected by high performance liquid chromatography (HPLC) while CpG island methylation status of tumor suppressor gene p16 and FHIT were measured by methylation-specifc polymerase chain reaction (MSP). Data were analyzed with Kruskal-Wallis H test, chi-square test and trend of chi-square test. Logistic regression models were used to estimate the odds ratio (OR) and corresponding 95% confidence intervals (95%CI) between influencing factors and the cervical disease by using the SPSS statistical software (version 20.0). The interaction under study was evaluated by using the generalized multifactor dimensionality reduction (GMDR) model. Results: Level of 1-hydroxy pyrene (H=50.743, P<0.001) and the high exposure rate of 1-hydroxy pyrene (trend χ(2)=20.146, P<0.001) were gradually increasing along with the severity of cervical intraepithelial neoplasia. The CpG island methylation rates of p16, FHIT in CINⅠand CINⅡ/Ⅲ group were higher than that in NC group, and gradually increasing along with the severity of cervical intraepithelial neoplasia (trend χ(2)=9.75, P=0.002; trend χ(2)=10.39, P=0.001). Results from the GMDR model showed that interaction existed among the high exposure of 1-hydroxy pyrene and the CpG island methylation of p16, FHIT in CINⅠ and CINⅡ/Ⅲ group. Conclusion: Under the high exposure of 1-hydroxy pyrene and the CpG island methylation of p16, FHIT appeared to have increased the risk of cervical intraepithelial neoplasia and causing synergistic effect in cervical intraepithelial neoplasia.
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Zhang Z, Kuang F, Liu CL, Chen B, Tang WB, Li XJ. [Effects of silencing Smad ubiquitination regulatory factor 2 on the function of human hypertrophic scar-derived fibroblasts]. ZHONGHUA SHAO SHANG ZA ZHI = ZHONGHUA SHAOSHANG ZAZHI = CHINESE JOURNAL OF BURNS 2017; 33:145-151. [PMID: 28316163 DOI: 10.3760/cma.j.issn.1009-2587.2017.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of silencing Smad ubiquitination regulatory factor 2 (Smurf2) on the secretion of transforming growth factor beta 1 (TGF-β(1)), alpha-smooth muscle actin (α-SMA), and collagen type Ⅰ by human hypertrophic scar-derived fibroblasts. Methods: The human normal skin-derived fibroblasts and hypertrophic scar-derived fibroblasts were cultured with explant culture technique from the normal skin and hypertrophic scar tissue, which was obtained from 9 patients with hypertrophic scars after burn. Two kinds of fibroblasts of the third passage were both divided into 6 groups according to the random number table, with 9 wells in each group. Fibroblasts in blank control group were cultured for 72 h without transfection of any small interfering RNA (siRNA), fibroblasts in negative control group were for cultured for 72 h after transfected with non-target siRNA, fibroblasts in Smurf2 siRNA group were cultured for 72 h after transfected with 100 nmol/L Smurf2 siRNA, fibroblasts in blank control+ TGF-β(1) group were cultured for 72 h without transfection of any siRNA and then treated with 10 ng/mL TGF-β(1) for 6 h, fibroblasts in negative control+ TGF-β(1) group were cultured for 72 h after transfected with non-target siRNA and then treated with 10 ng/mL TGF-β(1) for 6 h, fibroblasts in Smurf2 siRNA+ TGF-β(1) group were cultured for 72 h after transfected with Smurf2 siRNA and then treated with 10 ng/mL TGF-β(1) for 6 h. (1) The protein and mRNA expression levels of Smurf2 of the two kinds of cells in blank control group, negative control group, and Smurf2 siRNA group were assessed by Western blotting and reverse transcription-polymerase chain reaction (RT-PCR), respectively. (2) The content of TGF-β(1) in the cell culture supernatant of the two kinds of cells in blank control group and Smurf2 siRNA group was determined by enzyme-linked immunosorbent assay (ELISA). (3) The protein expression levels of α-SMA of the two kinds of cells in the 6 groups were assessed by Western blotting. The content of collagen type Ⅰ in the cell culture supernatant of the two kinds of cells in the 6 groups was determined by ELISA. (4) The mRNA expression levels of α-SMA and collagen type Ⅰ of the two kinds of cells in the 6 groups were assessed by RT-PCR. The sample numbers of each group in the above experiments were all 9. Data were processed with analysis of variance of factorial design and Bonferroni test. Results: (1) The protein and mRNA expression levels of Smurf2 of the two kinds of cells in Smurf2 siRNA group were significantly lower than those in blank control group and negative control group (with P values below 0.05). The protein and mRNA expression levels of Smurf2 of the two kinds of cells in blank control group and negative control group were close (with P values above 0.05). (2) The content of TGF-β(1) in the cell culture supernatant of hypertrophic scar-derived fibroblasts in blank control group and Smurf2 siRNA group was respectively (4.34±0.56) and (2.14±0.28) pg/mL, which was significantly higher than (1.52±0.20) and (1.41±0.18) pg/mL of normal skin-derived fibroblasts respectively (with P values below 0.05). In hypertrophic scar-derived fibroblasts, the content of TGF-β(1) in the cell culture supernatant in Smurf2 siRNA group was significantly lower than that in blank control group (P<0.05). In normal skin-derived fibroblasts, the content of TGF-β(1) in the cell culture supernatant in Smurf2 siRNA group was close to that in blank control group (P>0.05). (3) The protein expression levels of α-SMA and content of collagen type Ⅰ in the cell culture supernatant of the two kinds of cells in blank control+ TGF-β(1) group were significantly higher than those in blank control group (with P values below 0.05). The protein expression levels of α-SMA and content of collagen type Ⅰ in the cell culture supernatant of the two kinds of cells in negative control+ TGF-β(1) group were significantly higher than those in negative control group (with P values below 0.05). The protein expression levels of α-SMA and content of collagen type Ⅰ in the cell culture supernatant of the two kinds of cells in Smurf2 siRNA group were close to those in blank control group and negative control group (with P values above 0.05). The protein expression levels of α-SMA and content of collagen type Ⅰ in the cell culture supernatant of the two kinds of cells in Smurf2 siRNA+ TGF-β(1) group were significantly lower than those in blank control+ TGF-β(1) group and negative control+ TGF-β(1) group (with P values below 0.05). (4) The mRNA expression levels of α-SMA and collagen type Ⅰ of the two kinds of cells in blank control+ TGF-β(1) group were significantly higher than those in blank control group (with P values below 0.05). The mRNA expression levels of α-SMA and collagen type Ⅰ of the two kinds of cells in negative control+ TGF-β(1) group were significantly higher than those in negative control group (with P values below 0.05). The mRNA expression levels of α-SMA and collagen type Ⅰ of the two kinds of cells in Smurf2 siRNA group were close to those in blank control group and negative control group (with P values above 0.05). The mRNA expression levels of α-SMA and collagen type Ⅰ of the two kinds of cells in Smurf2 siRNA+ TGF-β(1) group were significantly lower than those in blank control+ TGF-β(1) group and negative control+ TGF-β(1) group (with P values below 0.05). Conclusions: Silencing Smurf2 in human hypertrophic scar-derived fibroblasts can reduce the autocrine of TGF-β(1) and inhibit the TGF-β(1)-induced α-SMA expression and collagen type Ⅰ synthesis.
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Chen SQ, Huang M, Shen YY, Liu CL, Xu CX. Abbreviated MRI Protocols for Detecting Breast Cancer in Women with Dense Breasts. Korean J Radiol 2017; 18:470-475. [PMID: 28458599 PMCID: PMC5390616 DOI: 10.3348/kjr.2017.18.3.470] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 11/16/2016] [Indexed: 12/20/2022] Open
Abstract
Objective To evaluate the validity of two abbreviated protocols (AP) of MRI in breast cancer screening of dense breast tissue. Materials and Methods This was a retrospective study in 356 participants with dense breast tissue and negative mammography results. The study was approved by the Nanjing Medical University Ethics Committee. Patients were imaged with a full diagnostic protocol (FDP) of MRI. Two APs (AP-1 consisting of the first post-contrast subtracted [FAST] and maximum-intensity projection [MIP] images, and AP-2 consisting of AP-1 combined with diffusion-weighted imaging [DWI]) and FDP images were analyzed separately, and the sensitivities and specificities of breast cancer detection were calculated. Results Of the 356 women, 67 lesions were detected in 67 women (18.8%) by standard MR protocol, and histological examination revealed 14 malignant lesions and 53 benign lesions. The average interpretation time of AP-1 and AP-2 were 37 seconds and 54 seconds, respectively, while the average interpretation time of the FDP was 3 minutes and 25 seconds. The sensitivities of the AP-1, AP-2, and FDP were 92.9, 100, and 100%, respectively, and the specificities of the three MR protocols were 86.5, 95.0, and 96.8%, respectively. There was no significant difference among the three MR protocols in the diagnosis of breast cancer (p > 0.05). However, the specificity of AP-1 was significantly lower than that of AP-2 (p = 0.031) and FDP (p = 0.035), while there was no difference between AP-2 and FDP (p > 0.05). Conclusion The AP may be efficient in the breast cancer screening of dense breast tissue. FAST and MIP images combined with DWI of MRI are helpful to improve the specificity of breast cancer detection.
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Chen SQ, Huang M, Shen YY, Liu CL, Xu CX. Application of Abbreviated Protocol of Magnetic Resonance Imaging for Breast Cancer Screening in Dense Breast Tissue. Acad Radiol 2017; 24:316-320. [PMID: 27916594 DOI: 10.1016/j.acra.2016.10.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 10/09/2016] [Accepted: 10/10/2016] [Indexed: 11/16/2022]
Abstract
RATIONALE AND OBJECTIVES The study aimed to evaluate the usefulness of an abbreviated protocol (AP) of magnetic resonance imaging (MRI) in comparison to a full diagnostic protocol (FDP) of MRI in the breast cancer screening with dense breast tissue. MATERIALS AND METHODS There are 478 female participants with dense breast tissue and negative mammography results, who were imaged with MRI using AP and FDP. The AP and FDP images were analyzed separately, and the sensitivity and specificity of breast cancer detection were calculated. The chi-square test and receiver operating characteristics curves were used to assess the breast cancer diagnostic capabilities of the two protocols. RESULTS Sixteen cases of breast cancer from 478 patients with dense breasts were detected using the FDP method, with pathologic confirmation of nine cases of ductal carcinoma in situ, six cases of invasive ductal carcinoma, and one case of mucinous carcinoma. Fifteen cases of breast cancer were successfully screened using the AP method. The sensitivity showed no obvious significant difference between AP and FDP (χ2 = 0.592, P = 0.623), but the specificity showed a statistically significant difference (χ2 = 4.619, P = 0.036). The receiver operating characteristics curves showed high efficacy of both methods in the detection of breast cancer in dense breast tissue (the areas under the curve were 0.931 ± 0.025 and 0.947 ± 0.024, respectively), and the ability to diagnose breast cancer was not statistically significantly different between the two methods. CONCLUSIONS The AP of MRI may improve the detection rate of breast cancer in dense breast tissue, and it may be useful in efficient breast cancer screening.
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Liu Y, Chen GQ, Liu BY, Chen Q, Qian YM, Qin SS, Liu CL, Xu CS. P2X 7 receptor in the hippocampus is involved in gp120-induced cognitive dysfunction. GENETICS AND MOLECULAR RESEARCH 2017; 16:gmr-16-01-gmr.16019356. [PMID: 28128418 DOI: 10.4238/gmr16019356] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To investigate the role of the P2X7 receptor in learning and memory dysfunction induced by HIV-1 envelope glycoprotein gp120 (gp120), we established HIV-1-associated dementia (HAD) animal models by intracerebroventricular (ICV) infusion of gp120 in rats. We observed gp120-induced cognitive dysfunction in the radial arm water maze test. Results showed that rats in the gp120 groups had longer escape latencies and more errors compared to those in the control group. For example, the average trial time in the 50-ng/day-gp120 group on day eight (16.57 ± 1.71 s, N = 90) was significantly longer than that of control rats (9.93 ± 0.68 s, N = 90). The relative expression of P2X7 mRNA in the control, 50-, 70-, and 100-ng/day-gp120 groups were 0.43 ± 0.06, 0.48 ± 0.07, 0.83 ± 0.05, and 0.84 ± 0.10, respectively; relative P2X7 protein expression in those groups was 0.63 ± 0.07, 1.08 ± 0.06, 0.90 ± 0.07, and 1.03 ± 0.11, respectively. According to immunohistochemistry analysis, the staining intensity values for P2X7 protein expression in the control, 50-, 70-, and 100-ng/d-gp120 groups were 0.88 ± 0.07, 1.41 ± 0.12, 1.28 ± 0.13, and 1.31 ± 0.10, respectively. The above results showed that the expression of P2X7 increased significantly in the hippocampus of gp120 rats compared to that of the control group. These results suggest that ICV infusion of gp120 can successfully mimic HAD in rats, and P2X7 may be involved in gp120-induced cognitive dysfunction. This could provide a theoretical foundation and potential drug target for research and treatment of ADC.
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Shi YF, Gao ZF, Liu CL, Huang X, Song YQ, Zhang C, Lin DM, Zhou LX, Zhao M, Lai YM, Li M. [Expression of CD137 in tumor cells of Hodgkin lymphoma from Northern China and its application in pathological differential diagnosis]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2017; 37:484-90. [PMID: 27431073 PMCID: PMC7348333 DOI: 10.3760/cma.j.issn.0253-2727.2016.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
目的 明确CD137在北方地区经典型霍奇金淋巴瘤(cHL)中的表达,探讨其作为cHL辅助病理鉴别诊断新指标的可能应用价值。 方法 收集54例cHL患者资料,以55例伴有“HRS样细胞”的非cHL患者为对照。在病理组织标本中选取“HRS细胞”或“HRS样细胞”丰富的区域制作组织芯片;以“HRS细胞”或“HRS样细胞”为观察对象,cHL组应用CD30、CD15、CD20、PAX5、CD3免疫组织化学染色;同时对两组患者标本进行CD137(BBK-2)抗体免疫组织化学染色及采用EBV编码的小RNA(EBER)原位杂交法检测EBV感染状态。 结果 54例cHL患者均为淋巴结内原发,中位年龄45.5(22.0~68.0)岁;男女比例1.7∶1;对照组患者结内54例,结外(皮肤)1例,中位年龄50.0(12.0~81.0)岁;男女比例1.9∶1。54例cHL患者均表达CD30,HRS细胞主要诊断相关免疫标志物CD30、CD15、CD20、CD3阳性表达率依次为100.0%、70.4%、18.5%和0,可见PAX5弱至中等强度表达,阳性率70.4%;EBV感染阳性率25.9%(对照组阳性率21.8%)。cHL组CD137阳性率57.4%,对照组阳性率14.5%,差异有统计学意义(P<0.001)。将cHL组及对照组按照患者年龄(≥60/<60岁)、性别、有无EBV感染、组织学亚型以及主要诊断相关标志物的表达与否进行分组,CD137阳性率差异均无统计学意义(P值均> 0.05)。以2013年为界进行分组,2013年前后两组cHL患者的CD137阳性率差异有统计学意义(39.4%对85.7%,P=0.001),对照组差异无统计学意义(12.5%对16.1%,P=0.705);2013以后存档的标本中cHL组与对照组患者CD137阳性率差异有统计学意义(85.7%对16.1%,P<0.001)。 结论 通过研究初步证实北方地区大多数cHL患者的HRS细胞表达CD137,而对照组患者“HRS样细胞”CD137阳性率较低。保存期3年以内较保存期3年以上的cHL患者标本CD137阳性率高,更适于进行CD137免疫组织化学染色检测。CD137有望作为辅助cHL病理鉴别诊断的新指标。
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Xia Q, Geng F, Zhang FF, Liu CL, Xu P, Lu ZZ, Xie Y, Sun B, Wu H, Yu B, Kong W, Yu XH, Zhang HH. Cyclophosphamide enhances anti-tumor effects of a fibroblast activation protein α-based DNA vaccine in tumor-bearing mice with murine breast carcinoma. Immunopharmacol Immunotoxicol 2016; 39:37-44. [PMID: 28004985 DOI: 10.1080/08923973.2016.1269337] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Cyclophosphamide (CY) is a DNA alkylating agent, which is widely used with other chemotherapy drugs in the treatment of various types of cancer. It can be used not only as a chemotherapeutic but also as an immunomodulatory agent to inhibit IL-10 expression and T regulatory cells (Tregs). Fibroblast activation protein α (FAPα) is expressed in cancer-associated fibroblasts in the tumor microenvironment. Immunotherapy based on FAPα, as a tumor stromal antigen, typically induces specific immune response targeting the tumor microenvironment. This study evaluated the efficacy of a previously unreported CY combination strategy to enhance the limited anti-tumor effect of a DNA vaccine targeting FAPα. The results suggested CY administration could promote the percentage of splenic CD8+ T cells and decrease the proportion of CD4 + CD25 + Foxp3+ Tregs in spleen. In tumor tissues, levels of immunosuppressive cytokines including IL-10 and CXCL-12 were also reduced. Meanwhile, the CY combination did not impair the FAPα-specific immunity induced by the DNA vaccine and further reduced tumor stromal factors. Most importantly, FAP-vaccinated mice also treated with CY chemotherapy showed a marked suppression of tumor growth (inhibition ratio =80%) and a prolongation of survival time. Thus, the combination of FAPα immunotherapy and chemotherapy with CY offers new insights into improving cancer therapies.
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Liu CL, Sun WT, Liao W, Lu WX, Li QW, Jeong Y, Liu J, Zhao ZH. Colour stabilities of three types of orthodontic clear aligners exposed to staining agents. Int J Oral Sci 2016; 8:246-253. [PMID: 27660048 PMCID: PMC5168413 DOI: 10.1038/ijos.2016.25] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2016] [Indexed: 02/05/2023] Open
Abstract
The aim of this study was to evaluate and compare the colour stabilities of three types of orthodontic clear aligners exposed to staining agents in vitro. Sixty clear orthodontic aligners produced by three manufacturers (Invisalign, Angelalign, and Smartee) were immersed in three staining solutions (coffee, black tea, and red wine) and one control solution (distilled water). After 12-h and 7-day immersions, the aligners were washed in an ultrasonic cleaner and measured with a colourimeter. The colour changes (ΔE*) were calculated on the basis of the Commission Internationale de I'Eclairage L*a*b* colour system (CIE L*a*b*), and the results were then converted into National Bureau of Standards (NBS) units. Fourier transformation infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM) were conducted to observe the molecular and morphologic alterations to the aligner surfaces, respectively. The three types of aligners exhibited slight colour changes after 12 h of staining, with the exception of the Invisalign aligners stained with coffee. The Invisalign aligners exhibited significantly higher ΔE* values (ranging from 0.30 to 27.81) than those of the Angelalign and Smartee aligners (ΔE* values ranging from 0.33 to 1.89 and 0.32 to 1.61, respectively, P<0.05). FT-IR analysis confirmed that the polymer-based structure of aligners did not exhibit significant chemical differences before and after the immersions. The SEM results revealed different surface alterations to the three types of aligner materials after the 7-day staining. The three types of aesthetic orthodontic appliances exhibited colour stability after the 12-h immersion, with the exception of the Invisalign aligners stained by coffee. The Invisalign aligners were more prone than the Angelalign and Smartee aligners to pigmentation. Aligner materials may be improved by considering aesthetic colour stability properties.
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