1.Effect of Oral Ambroxol on Pharmacokinetics of Aminophyllin
Chunbao ZHANG ; Ning LIU ; Chaobo CUI ; Wenli LIU
China Pharmacy 1991;0(02):-
OBJECTIVE:To study whether there is interaction between ambroxol hydrochloride and amino?phylline.METHODS:16volunteer were randomly divided into trial group and control group.The blood concentration of amin_ ophylline was determinated with HPLC method,then the main parameters of pharmacokinetics of aminophylline were calculated with3p97software.RESULTS:The main parameters of pharmacokinetics of aminophylline in trial and control group were:K e (0.062?0.023)/h and(0.0905?0.013)/h;V(22.83?7.85)and(23.27?3.78)L;T 1/2 (12.51?4.2)and(7.77?0.89)h;AUC 0~21 (426.59?186.92)and(245.74?48.6)(mg?h)/L;CL(s)(23.17?9.83)and(34.84?6.00)ml/min respective?ly.CONCLUSION:Although ambroxol hydrochloride did not influence the distribution of aminophylline,but it could prolong the half time of aminophylline and increase the stagnation time of aminophylline in vivo.
2.Role of nuclear factor-κB signaling pathway in inflammatory lung diseases
Xiuhe PAN ; Chaobo LIU ; Jun SUN ; Yan LI ; Mingcai LI
Chinese Journal of Pharmacology and Toxicology 2016;30(7):762-769
Nuclear factor(NF)-κB is widely expressed in various types of tissue cells. Abnormal activation of NF-κB signaling pathway can lead to the initiation and progression of asthma,chronic ob?structive pulmonary disease(COPD)and other lung inflammatory diseases,but inhibition of its activity can effectively alleviate the occurrence and development of these diseases. In this paper ,we review biological characteristics of NF-κB,role of NF-κB signaling in asthma,COPD and other inflammatory lung diseases,and potential application of NF-κB inhibitors in clinical treatment of these inflammatory lung diseases. It will provide a valuable reference for further study on pathogenesis,prevention,and control of lung inflammatory diseases.
3.Stent-assisted coil embolization for unruptured wide-neck intracranial aneurysms:predictors of perioperative complications and recurrence
Chaobo LIU ; Huanbin HUANG ; Li REN ; Xinjun ZHOU
International Journal of Cerebrovascular Diseases 2016;24(8):722-729
Objective To investigate the feasibility, safety and effectiveness of stent-assisted coil embolization for the treatment of intracranial wide-necked aneurysms. Methods The clinical and imaging data of the patients with intracranial wide-necked aneurysm treated with stent-assisted coil embolization were analyzed retrospectively. Results A total of 200 patients with 205 aneurysms were enrolled. The mortality was 1. 5% and the disability rate was 1. 0% at discharge. One hundred seventy-seven patients were followed up for 16-51 months. The modified Rankin Scale scores: 0 in 174 cases, 2 in 2 cases, 4 in 1 case. Eleven patients (5. 5% ) had perioperative complications, including intraoperative bleeding in 3 cases, postoperative bleeding in 3 cases, postoperative cerebral infarction in 2 cases, coil protrusion in 2 cases, and postoperative epileptic seizure in 1 case. Univariate analysis showed that there were significant differences in the proportions of male patients (9. 1% vs. 5. 3% ; χ2 = 4. 42, P = 0. 026), hypertension (54. 5% vs. 23. 3% ; χ2 = 5. 42, P = 0. 03) and stent prior to coil implantation (54. 5% vs. 85. 1% ; χ2 = 3. 54, P =0. 021) between the complication group and the noncomplication group. Multivariate logistic regression analysis showed that the pre-stenting was an independent protective factor for surgery-related complications (odds ratio [OR] 0. 208, 95% confidence interval [CI] 0. 055-0. 791; P = 0. 021), and hypertension was an independent risk factor for surgery-related complications (OR 4. 380, 95% CI 1. 170-16. 399; P = 0. 028). The imaging follow-up of 167 aneurysms was obtained, including 26 recurrent aneurysms (15. 6% ). Univariate analysis showed that there was significant difference in the aneurysm site (anterior circulation aneurysms: 73. 1% vs. 89. 1% ; posterior circulation aneurysms: 26. 9% vs. 10. 6% ; χ2 = 5. 09, P = 0. 033) and size (giant aneurysms: 7. 7% vs. 0. 7% ; large artery aneurysm: 65. 4% vs. 29. 1% ; small aneurysms:26. 9% vs. 70. 2% ; χ2 = 20. 77, P < 0. 001) between the recurrence group and the nonrecurrence group. Multivariate logistic regression analysis showed that large aneurysms (OR 6. 057, 95% CI 2. 296-5. 983; P <0. 001), giant aneurysms (OR 25. 260, 95% CI 1. 903- 335. 267; P = 0. 014 ), and posterior circulation aneurysms ( OR 3. 184, 95% CI 1. 028- 9. 857; P = 0. 045 ) were the independent risk factors of postoperative recurrence. Conclusions Stent-assisted coil embolization is one of the effective methods for the treatment of complex wide-neck aneurysms. Hypertension and coils prior to stenting are the independent risk factors for perioperative complications, and larger aneurysm size and aneurysms in the posterior circulation are the independent risk factors for postoperative recurrence.
4.Role of type II innate lymphoid cells in browning of white adipose tissue
Jun SUN ; Chaobo LIU ; Xiuhe PAN ; Wenwen JIANG ; Mingcai LI ; Yan LI
Chinese Journal of Pathophysiology 2017;33(2):365-368,374
Type II innate lymphoid cells ( ILC2s) are widely distributed in the blood , intestines, trachea, lung, spleen, liver, animal fat and skin, and involved in the innate immune responses .ILC2s have attracted much atten-tion for its important roles in the conversion of white adipose to beige adipose .Studies have shown that ILC2s are essential for the proliferation and differentiation of adipocyte precursor cells , and they also play a vital role in anti-parasitic infection and allergic inflammation .This review discusses the discovery , differentiation , development , distribution and function of ILC2s, and their relationships with the browning of white adipose tissue for providing valuable references on understanding the pathogenesis , prevention and treatment of obesity and fat metabolism disorders .
5. Treatment of elderly patients with aneurysmal subarachnoid hemorrhage: comparison between surgical clipping and endovascular coil embolization
Chaobo LIU ; Li REN ; Hao XU ; Jin XING ; Huanbin HUANG ; Zhihan WANG ; Xihua WANG
International Journal of Cerebrovascular Diseases 2019;27(9):679-684
Objective:
To compare the treatment effect of surgical clipping and endovascular coil embolization for aneurysmal subarachnoid hemorrhage (aSAH) in the elderly.
Methods:
Elderly patients with aSAH (aged >65 years) treated in Shanghai Pudong Hospital from January 2009 to December 2017 were enrolled retrospectively. They were divided into craniotomy clipping group and endovascular intervention group according to the treatment strategy. The Glasgow Outcome Scale was used for short-term outcome assessment at discharge, 4-5 were defined as good outcome, and 1-3 were defined as poor outcome. Long-term follow-up was performed to assess clinical outcomes using the modified Rankin Scale, 0-2 was defined as good outcome and 3-6 were defined as poor outcome. The clinical and imaging information, perioperative complications, short-term and long-term clinical outcomes, and long-term imaging outcomes were compared between the two groups. Multivariate
6.Contrast-enhanced computed tomography radiomics for the preoperative prediction model of microvascular invasion in intrahepatic cholangiocarcinoma
Zheyu ZHOU ; Shuya CAO ; Chunlong ZHAO ; Qiaoyu LIU ; Xiaoliang XU ; Chaobo CHEN
International Journal of Surgery 2024;51(8):511-516
Objective:To predict the status of microvascular invasion (MVI) in intrahepatic cholangiocarcinoma (ICC) patients preoperatively based on the radiomics analysis of contrast-enhanced CT to provide imaging evidence for early identification of patients at high risk of recurrence.Methods:Clinical data of 40 ICC patients who underwent radical hepatectomy at Nanjing Drum Tower Hospital from January 2021 to May 2024 were retrospectively collected. Patients were divided into the MVI group ( n=8) and the non-MVI group ( n=32) according to the MVI status of the postoperative pathology report. Whether there were differences in each pathological index between the groups and the efficacy of radiomics analysis of contrast-enhanced CT for the preoperative prediction of MVI were analyzed. The regions of interest (ROI) were outlined on the arterial and venous phase images using the 3D Slicer software. Then, radiomics features were extracted from each ROI based on Python. Finally, the LASSO regression and glm function were used to screen radiomics features and establish a prediction model based on the R language. The established predictive model′s diagnostic efficacy, calibration, and net clinical benefit were evaluated using the receiver operating characteristic (ROC) curve, calibration curve, and decision curve analysis (DCA), respectively. Normally distributed measurement data were expressed as mean±standard deviation ( ± s) and compared using the t-test. Count data were expressed as frequency and compared using the chi-square test. Results:Patients in the MVI group had more poorly differentiated tumors and a significantly higher proportion of lymph node metastases ( P<0.05). The established radiomics prediction model included six features, 1 first-order statistical feature and 5 gray texture features. The area under the ROC curve was 0.87, the sensitivity was 75.0%, and the specificity was 90.6%. The calibration curve showed good agreement between the predicted MVI and actual MVI status, and the decision curve demonstrated that the model could provide a large net clinical benefit. Conclusion:Radiomics analysis of contrast-enhanced CT can identify the MVI status of ICC patients preoperatively and aid in clinical decision-making, providing vital evidence for individualized and precise treatment of ICC.