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Duan HZ, Yuan CW, Li CW, Yi ZQ, Zhang Y, Shen SL, Wang YJ, Zhang JY, Li L. [Exploration on endovascular treatment for symptomatic occlusion of the intracranial vertebral arteries in early non-acute stage]. Zhonghua Wai Ke Za Zhi 2020; 58:909-917. [PMID: 33249808 DOI: 10.3760/cma.j.cn112139-20200703-00535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the clinical efficacy of endovascular treatment on symptomatic occlusion of intracranial vertebral artery (ICVA) in early non-acute stage. Methods: Nine consecutive patients who presented with aggressive ischemic events in the early non-acute stage of ICVA occlusion from January 2014 to December 2019 and received endovascular treatment at Department of Neurosurgery, Peking University First Hospital were retrospectively reviewed.There were 7 males and 2 females, aged 63.4 years old(range: 52 to 72 years).The average preoperative modified Rankin scale(mRS) was 4.3(range: 4 to 5), the National Institute of Health stroke scale(NIHSS) was 12.3(range: 8 to 18). Among them, 2 patients received a single stage endovascular treatment, and the other 7 patients received staged endovascular treatment.The strategy of staged treatment was as follows: firstly, the occlusion part was passed through by a micro-guidewire and dilated with balloons to maintain the blood flow above Thrombolysis In Cerebral Infarction grade 2b. Then, the intravascular large load thrombus was eliminated by the fibrinolytic system and strengthened antiplatelet drugs. After that, a second stage of angioplasty with stenting was performed on the severe residual stenosis part.The complications and the recanalization rate were collected, and the National NIHSS and mRS after endovascular treatment and in follow-up period were recorded. Results: In the 2 cases received single stage endovascular treatment, although revascularization was achieved lastly, one patient suffered embolus translocation and the other suffered re-occlusion after mechanical thrombectomy during the operation, respectively.Technical success was achieved in 6 of the 7 patients received staged endovascular treatment.On discharge, the average NIHSS scores was 5.7(range: 3 to 4) of the patients. Three months after operation,the average mRS was 1.6(range:0 to 3) and it was 0.9(range: 0 to 2) at the latest follow-up, which were better than preoperative status. Conclusions: Staged endovascular treatment might be a safe, efficient, viable option in carefully selected patients with symptomatic ICVA occlusion in early non-acute stage. It needs to be confirmed by further investigation, preferably in a large controlled setting.
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Affiliation(s)
- H Z Duan
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
| | - C W Yuan
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
| | - C W Li
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
| | - Z Q Yi
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
| | - Y Zhang
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
| | - S L Shen
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
| | - Y J Wang
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
| | - J Y Zhang
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
| | - L Li
- Department of Neurosurgery, Peking University First Hospital, Beijing 100034, China
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Yuan CW, Sun XL, Qiao LC, Xu HX, Zhu P, Chen HJ, Yang BL. Non-SMC condensin I complex subunit D2 and non-SMC condensin II complex subunit D3 induces inflammation via the IKK/NF-κB pathway in ulcerative colitis. World J Gastroenterol 2019; 25:6813-6822. [PMID: 31885422 PMCID: PMC6931004 DOI: 10.3748/wjg.v25.i47.6813] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/20/2019] [Accepted: 12/06/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Ulcerative colitis (UC) is a chronic, nonspecific intestinal inflammatory disease with undefined pathogenesis. Non-SMC condensin I complex subunit D2 (NCAPD2) and non-SMC condensin II complex subunit D3 (NCAPD3) play pivotal roles in chromosome assembly and segregation during both mitosis and meiosis. To date, there has been no relevant report about the functional role of NCAPD2 and NCAPD3 in UC.
AIM To determine the level of NCAPD2/3 in intestinal mucosa and explore the mechanisms of NCAPD2/3 in UC.
METHODS Levels of NCAPD2/3 in intestinal tissue were detected in 30 UC patients and 30 healthy individuals with in situ hybridization (ISH). In vitro, NCM60 cells were divided into the NC group, model group, si-NCAPD2 group, si-NCAPD3 group and si-NCAPD2+si-NCAPD3 group. Inflammatory cytokines were measured by ELISA, IKK and NF-κB were evaluated by western blot, and IKK nucleation and NF-κB volume were analyzed by immunofluorescence assay.
RESULTS Compared with expression in healthy individuals, NCAPD2 and NCAPD3 expression in intestinal tissue was significantly upregulated (P < 0.001) in UC patients. Compared with levels in the model group, IL-1β, IL-6 and TNF-α in the si-NCAPD2, si-NCAPD3 and si-NCAPD2+si-NCAPD3 groups were significantly downregulated (P < 0.01). IKK and NF-κB protein expression in the si-NCAPD2, si-NCAPD3 and si-NCAPD2+si-NCAPD3 groups was significantly decreased (P < 0.01). Moreover, IKK nucleation and NF-κB volume were suppressed upon si-NCAPD2, si-NCAPD3 and si-NCAPD2+ si-NCAPD3 transfection.
CONCLUSION NCAPD2/3 is highly expressed in the intestinal mucosa of patients with active UC. Overexpression of NCAPD2/3 promotes the release of pro-inflammatory cytokines by modulating the IKK/NF-κB signaling pathway.
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Affiliation(s)
- Chang-Wen Yuan
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Xue-Liang Sun
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Li-Chao Qiao
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Hai-Xia Xu
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Ping Zhu
- Department of Colorectal Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Hong-Jin Chen
- Department of Colorectal Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Bo-Lin Yang
- Department of Colorectal Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu Province, China
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Yuan CW, Liu WX, Hou JL, Zhang LG, Wang GQ. Prevalence of pathogenicity island ETT2 in Escherichia coli isolated from piglets with diarrhea in northeast of China. Pol J Vet Sci 2018; 21:5-12. [PMID: 29623998 DOI: 10.24425/119016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Our aim was to investigate the prevalence of the pathogenicity island ETT2 and to examine the relationship between the ETT2 locus and other virulence factors in Escherichia coli (E. coli) isolated from piglets with diarrhea. A total of 354 E. coli strains isolated from scouring piglets were tested using PCR for the presence of the ETT2 locus. The E. coli strains were also analyzed for enterotoxins, fimbriae, non-fimbrial adhesin, Shiga toxins, pathogenicity islands, α-haemolysin (hlyA), afa8 gene cluster and autotransporter protease (sepA) genes. The results showed that 215 (60.7%) of the isolates possessed the ETT2 island. In 215 ETT2-positive E. coli strains, the virulence genes found were EAST1 (27.0%), irp2 (18.6%), paa (15.4%), STb (7.9%), LT (6.5%), ler (4.7%), hlyA (3.7%), AIDA-I (3.7%), K88 (3.7%), eae (3.3%), STa (2.8%), afaD (1.4%), afaE (1.4%), K99 (0.9%) and sepA (0.47%), respectively, and the isolates could be assigned into 25 different virulence factor patterns. In 139 ETT2-negative E. coli strains, the virulence genes detected were EAST1 (38.9%), paa (14.4%), STb (11.5%), AIDA-I (10.1%), irp2 (7.9%), sepA (2.16%), LT (0.7%), STa (0.7%), eae (0.7%), ler (0.7%), hlyA (0.7%) and K88 (0.7%), respectively, and the isolates could be classified into 13 different virulence factor patterns. Moreover, the occurrence of LT gene of ETT2-positive E. coli strains was far more than that of ETT2-negative E. coli strains.
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Affiliation(s)
- C W Yuan
- College of life and health sciences, Northeastern University, No. 89, Wenhua East Road, Shenyang, Liaoning,110011, P. R. China
| | - W X Liu
- Laboratory of Hematology, Affiliated hospital of Guangdong Medical College, No.2, Wenming East Road, Zhanjiang, 524001, P. R. China
| | - J L Hou
- College of life and health sciences, Northeastern University, No. 89, Wenhua East Road, Shenyang, Liaoning,110011, P. R. China
| | - L G Zhang
- Center for Animal Disease Emergency of Liaoning province, No.56, Dongling Road, Shenyang, Liaoning, 110004, P. R. China
| | - G Q Wang
- College of life and health sciences, Northeastern University, No. 89, Wenhua East Road, Shenyang, Liaoning,110011, P. R. China
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Zhao P, Zheng JS, Zhang HH, Yuan CW, Cui SC, Du N, Zhao LY. [Efficacy evaluation and exploration of TACE combined with CT-guided precision microwave ablation treatment for primary liver cancer]. Zhonghua Zhong Liu Za Zhi 2016; 38:138-45. [PMID: 26899335 DOI: 10.3760/cma.j.issn.0253-3766.2016.02.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To analyze the clinical therapeutic efficacy of transcatheter arterial chemoembolization combined with CT-guided percutaneous precision microwave ablation for the treatment of primary liver cancer and its influencing factors. METHODS A total of 126 patients with primary liver cancer were treated by transcatheter arterial chemoembolization combined with CT-guided percutaneous precision microwave ablation from Mar 2010 to Oct 2014 in our center. The treatment effect, postoperative complications and recurrence rates were observed, and the factors related to recurrence and survival time were analyzed. RESULTS All 126 primary liver cancer patients with 201 tumors were ablated for 177 times, and 113 cases with 185 tumors were completed ablated, the complete ablation rate was 92.0%. In all patients, 4 cases had serious complications, the incidence rate was 3.2%. 37 cases had recurrence, with a recurrence rate of 29.4%. All patients were followed up for 10 to 65 months, 17 patients died, and the 1-, 2-, and 3-year cumulative survival rates were 95.2%, 88.1%, and 84.1%, respectively, and the 1-, 2-, and 3-year progression-free-survival rates were 81.5%, 62.7% and 49.2%, respectively .Univariate analysis showed that preoperative AFP level, Child-Pugh score, BCLC stage and the largest tumor size were associated with the survival of patients who received TACE combined with CT-guided precision MWA, and the preoperative AFP level, internal medicine therapy, tumor number and the largest tumor size were associated with the progression-free-survival after the treatment (P<0.05). Multivariate analysis showed that Child-Pugh score and BCLC stage were independent factors affecting the survival of patients with primary liver cancer patients treated with TACE combined with CT guided percutaneous MWA, and the tumor number and the maximum tumor size were independent factors affecting the progression-free-survival of the patients (P<0.05). CONCLUSION TACE combined with CT-guided percutaneous precision microwave ablation therapy for primary liver cancer has reliable safety and efficacy.
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Affiliation(s)
- P Zhao
- Center of Minimally Invasive Interventional Therapy, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
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Yuan CW, Yi DO, Sharp ID, Shin SJ, Liao CY, Guzman J, Ager JW, Haller EE, Chrzan DC. Theory of nanocluster size distributions from ion beam synthesis. Phys Rev Lett 2009; 102:146101. [PMID: 19392456 DOI: 10.1103/physrevlett.102.146101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Revised: 02/24/2009] [Indexed: 05/27/2023]
Abstract
Ion beam synthesis of nanoclusters is studied via both kinetic Monte Carlo simulations and the self-consistent mean-field solution to a set of coupled rate equations. Both approaches predict the existence of a steady-state shape for the cluster-size distribution that depends only on a characteristic length determined by the effective diffusion coefficient, the ion solubility, and the volumetric ion flux. The average cluster size in the steady-state regime is determined by the implanted species or matrix interface energy.
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Affiliation(s)
- C W Yuan
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
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Xu Q, Sharp ID, Yuan CW, Yi DO, Liao CY, Glaeser AM, Minor AM, Beeman JW, Ridgway MC, Kluth P, Ager JW, Chrzan DC, Haller EE. Large melting-point hysteresis of Ge nanocrystals embedded in SiO2. Phys Rev Lett 2006; 97:155701. [PMID: 17155336 DOI: 10.1103/physrevlett.97.155701] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2006] [Indexed: 05/12/2023]
Abstract
The melting behavior of Ge nanocrystals embedded within SiO2 is evaluated using in situ transmission electron microscopy. The observed melting-point hysteresis is large (+/-17%) and nearly symmetric about the bulk melting point. This hysteresis is modeled successfully using classical nucleation theory without the need to invoke epitaxy.
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Affiliation(s)
- Q Xu
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
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Jiang Y, Yuan CW, Li YH, Pu YP, Wu L. [Investigation on the stimulation effect of polypyrrole film on rat hepatic cells]. Sheng Wu Gong Cheng Xue Bao 2000; 16:521-4. [PMID: 11051833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Poypyrrole(PPy) films were prepared at 1 x 10(-3) mA/cm2 electropolymerization current density on indium-tin oxide(ITO)substrate. The PPy films were well-distributed, translucent, stable and insoluble. Moreover, they can be sterilized by steam disinfection. Rat hepatic cells were cultured on these films. The results show that PPy films have good biocompatibility and they can accelerate cell growth under electrical stimulation. The cells on PPy films reach the largest cell density earlier than the cells on tissue culture polystyrene(TCPS). Furthermore, rat hepatic cells can generate on PPy films. The cells on PPy films grow faster and enter logarithmic growth phase earlier than those on TCPS.
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Affiliation(s)
- Y Jiang
- Department of Biomedical Engineering, Southeast University, Nanjing
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Jiang YS, Zhang SY, Shao HP, Yuan CW. Optical properties of Langmuir-Blodgett films investigated by a photoacoustic technique. Appl Opt 1995; 34:169-73. [PMID: 20963098 DOI: 10.1364/ao.34.000169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A photoacoustic (PA) technique based on a four-layer prism configuration has been developed for nondestructive determination of the optical properties of Langmuir-Blodgett (LB) films, in which the PA signal amplitudes are measured as functions of the incident angle of light. With this technique the experimental PA angular spectra of manganese stearate and cadmium stearate LB films were obtained. Based on the electromagnetic theory and taking into account the anisotropic properties of LB films, as well as use of the numerical optimization method, we have simultaneously determined the optical constants and thicknesses of films based on experimental PA angular spectra.
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