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Hua WJ, Yeh H, Lin ZH, Tseng AJ, Huang LC, Qiu WL, Tu TH, Wang DH, Hsu WH, Hwang WL, Lin TY. Ganoderma microsporum immunomodulatory protein as an extracellular epidermal growth factor receptor (EGFR) degrader for suppressing EGFR-positive lung cancer cells. Cancer Lett 2023; 578:216458. [PMID: 37865161 DOI: 10.1016/j.canlet.2023.216458] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/28/2023] [Accepted: 10/17/2023] [Indexed: 10/23/2023]
Abstract
Epidermal growth factor receptor (EGFR) abnormalities relevant to tumor progression. A newly developed strategy for cancer therapy is induction of EGFR degradation. GMI, an immunomodulatory protein from the medicinal mushroom Ganoderma microsporum, exhibits anticancer activity. However, its role in the intracellular trafficking and degradation of EGFR remains unclear. In this study, we discovered that GMI inhibits the phosphorylation of multiple tyrosine kinases. Specifically, GMI was discovered to suppress lung cancer cells harboring both wild-type and mutant EGFR by inhibiting EGFR dimerization and eliminating EGFR-mediated signaling. Functional studies revealed that GMI binds to the extracellular segment of EGFR. GMI interacts with EGFR to induce phosphorylation of EGFR at tyrosine1045, which triggers clathrin-dependent endocytosis and degradation of EGFR. Furthermore, in the mouse models, GMI was discovered to suppress tumor growth. Knockdown of EGFR in lung cancer cells abolishes GMI's anticancer activity in vivo and in vitro. Our results reveal the interaction mechanisms through which GMI induces EGFR degradation and abolishes EGFR-mediated intracellular pathway. Our study indicates that GMI is an EGFR degrader for inhibiting EGFR-expressing tumor growth.
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Affiliation(s)
- Wei-Jyun Hua
- Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan; Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hsin Yeh
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Zhi-Hu Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ai-Jung Tseng
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Li-Chen Huang
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wei-Lun Qiu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tsung-Hsi Tu
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taiwan; Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taiwan
| | - Ding-Han Wang
- College of Dentistry, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wei-Hung Hsu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; LO-Sheng Hospital Ministry of Health and Welfare, Taipei, Taiwan; School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Lun Hwang
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Cancer and Immunology Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tung-Yi Lin
- Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan; Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Qiu WL, Lo HC, Lu MK, Lin TY. Significance of culture period on the physiochemistry and anti-cancer potentials of polysaccharides from mycelia of Ganoderma lucidum. Int J Biol Macromol 2023; 242:125181. [PMID: 37270134 DOI: 10.1016/j.ijbiomac.2023.125181] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/23/2023] [Accepted: 05/30/2023] [Indexed: 06/05/2023]
Abstract
Ganoderma lucidum polysaccharides (GPS) have many functions. Polysaccharides are abundant in G. lucidum mycelia, but it is unclear whether the production and chemical characteristics of polysaccharides are related to the liquid cultural periods of mycelia. This study harvests G. lucidum mycelia at different cultural stages and isolates GPS and sulfated polysaccharides (GSPS) separately to determine an optimum cultural duration. After 42 and 49 days of mycelia are found to be the best times to harvest GPS and GSPS. Characteristic studies show that glucose and galactose are the main sugars in GPS and GSPS. The molecular weights of various GPS and GSPS are mainly distributed at >1000 kDa and from 101 to 1000 kDa. The sulfate content of GSPS at Day 49 is greater than that at Day 7. GPS and GSPS at 49 days exhibits a good anticancer effect but does not affect normal fibroblasts. GPS and GSPS that is isolated on day 49 inhibits lung cancer by suppressing epidermal growth factor receptor (EGFR) and transforming growth factor beta receptor (TGFβR)-mediated signaling networks. These results show that the mycelia of G. lucidum that are cultured for 49 days exhibit the best biological characteristics.
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Affiliation(s)
- Wei-Lun Qiu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hung-Chih Lo
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Mei-Kuang Lu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan; Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan.
| | - Tung-Yi Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan.
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Lin TY, Lo HC, Qiu WL, Chao CH, Lu MK, Hsu HY. Biochemical characterization and anti-cancer activity of tangential flow filtration system assisted purification of fucoglucan from Laminaria japonica. Int J Biol Macromol 2023; 227:1-9. [PMID: 36528139 DOI: 10.1016/j.ijbiomac.2022.12.078] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/15/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022]
Abstract
Polysaccharide from Laminaria japonica (LJPS) exhibits multiple biological functions. However, we found that crude LJPS doesn't show good anti-lung cancer activity in this study. We therefore used tangential flow filtration (TFF) system to optimize the anticancer activity of LJPS. We divided the crude LJPS into two fractions by TFF system with a 10 kDa filter and denoted as retentate (10K-R) and filtration (10K-F). The chemical assay revealed that the main molecular mass of 10K-R and 10K-F is about 985 and 3 kDa, respectively. The main components of 10K-R include fucose (19.3 %), and glucose (59.5 %); while glucose (88.6 %) is a major component of 10K-F. Biological functions showed that 10K-R but not 10K-F inhibited the viability and mobility of cancer cells. 10K-R downregulated expressions of transforming growth factor β receptor and Slug, and inhibited intracellular signaling molecules, including FAK, AKT, ERK1/2, and Smad2. This study is the first concept to purify the polysaccharide by TFF system and showed the potential mechanism of 10K-R inhibited cancer cells.
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Affiliation(s)
- Tung-Yi Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Hung-Chih Lo
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wei-Lun Qiu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chi-Hsein Chao
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Mei-Kuang Lu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan; Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan.
| | - Hsien-Yeh Hsu
- Institute of Taiwan Fucoidan Development, Taipei, Taiwan; Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Hu G, Liu JG, Qiu WL, Mei SW, Wang X, Tang JQ. [Risk factor and nomogram for predicting the probability of a permanent stoma after laparoscopic intersphincteric resection for ultralow rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:997-1004. [PMID: 36396375 DOI: 10.3760/cma.j.cn441530-20220629-00283] [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: 06/16/2023]
Abstract
Objective: A permanent stoma can seriously affect patients' quality of life. Clinicians need to consider the risk of a permanent stoma when making clinical decisions. This study analyzed preoperative predictors of a permanent stoma after laparoscopic intersphincteric resection for low rectal cancer (LISR), and a prediction model was constructed validated. Methods: This was a retrospective study that analyzed clinical data of 331 ultralow rectal cancer patients who were diagnosed with primary rectal adenocarcinoma by endoscopy and pathology, including 218 males and 113 female, (58.8±11.2) years and (23.7±3.1) kg/m2. The patients underwent LISR with a preventive stoma from January 2012 to December 2020. Patients with multiple primary colorectal cancers, who underwent emergency surgery for intestinal obstruction or bleeding or perforation, and did not complete 18 months follow up were exclucled. R software was used to randomly select 234 patients as the modeling group with a ratio of approximately 7:3, and the remaining 97 patients comprised the validation group. The stoma site was determined by the surgeon before the operation, and the ileum 30 cm from the ileocecal valve was selected. The rates of a permanent stoma for the entire group and the preoperative clinical factors that may affect the permanency of a stoma in the modeling group were determined. A permanent stoma was defined as failure to close the stoma at 18 months after surgery. Multivariate logistic regression analysis was used to analyze the preoperative independent risk factors for a permanent stoma after LISR. R software was used to create the nomogram model, and the predictive ability of the nomogram model was evaluated by receiver operating characteristic (ROC) curve analysis. Results: Among the 331 patients who underwent LISR, 37 (26 cases in the modeling group and 11 cases in the validation group, 11.2%) developed a permanent stoma for the following reasons: anastomotic stenosis due to leakage (16 cases, 43.2%), distant metastasis (16 cases, 43.2%), intolerant to stoma closure surgery (3 cases, 8.1%), stenosis due to postoperative radiation (1 case, 2.7%), and poor recovery of anorectal function (1 case, 2.7%). Univariate analysis showed that preoperative neoadjuvant chemoradiotherapy, poorly differentiated tumor, cT3 stage, and distant metastasis were associated with a permanent stoma. Multivariate logistic regression analysis showed that neoadjuvant chemoradiotherapy [OR=3.078, 95% confidence interval (CI): 1.326-7.147; P=0.009], cT3 stage (OR=2.257, 95%CI: 1.001-5.091; P=0.049), and stage IV cancer (OR=16.180, 95%CI: 2.753-95.102; P=0.002) were independent risk factors for permanent stoma after LISR. Based on the selected risk factors, a nomogram model for predicting permanent stoma was constructed. The area under the ROC curve of the modeling group was 0.793, the optimal cut-off value was 0.890, the sensitivity was 0.577, and the specificity was 0.885. The area under the ROC curve of the validation group was 0.953. The corrected curves of the modeling group and the validation group showed a good degree of fit. Conclusion: Neoadjuvant chemoradiotherapy, cT3 stage, and distant metastasis are independent predictors of a permanent stoma after LISR, and the nomogram model is helpful to predict the probability of a permanent stoma. Patients with high-risk factors should be adequately informed of the risk of a permanent stoma before colorectal surgery.
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Affiliation(s)
- G Hu
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - J G Liu
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - W L Qiu
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - S W Mei
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - X Wang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - J Q Tang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
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Yeh H, Vo DNK, Lin ZH, Ho HPT, Hua WJ, Qiu WL, Tsai MH, Lin TY. GMI, a protein from Ganoderma microsporum, induces ACE2 degradation to alleviate infection of SARS-CoV-2 Spike-pseudotyped virus. Phytomedicine 2022; 103:154215. [PMID: 35691077 PMCID: PMC9144848 DOI: 10.1016/j.phymed.2022.154215] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/12/2022] [Accepted: 05/26/2022] [Indexed: 05/09/2023]
Abstract
BACKGROUND Severe Acute Respiratory Syndrome Coronavirus Type 2 (SARS-CoV-2) induces a global serious pandemic and is responsible for over 4 million human deaths. Currently, although various vaccines have been developed, humans can still get SARS-CoV-2 infection after being vaccinated. Therefore, the blocking of SARS-CoV-2 infection may be potential therapeutic strategies. Ganoderma microsporum immunomodulatory protein (GMI), a small fungal protein, is cloned from Ganoderma microsporum. It exhibits anti-cancer and immunomodulatory functions. Currently, it is still unclear whether GMI involves in interfering with viral infection. PURPOSE This study aimed to examine the potential functions and mechanisms of GMI on inhibiting SARS-CoV-2 pseudovirus infection. METHODS The effects of GMI were examined in vitro on ACE2 overexpressing HEK293T (HEK293T/ACE2) cells exposed to SARS-CoV-2 Spike lentiviral pseudovirus encoding a green fluorescent protein (GFP) gene. The infection efficacy was determined using fluorescence microscopy and flow cytometry. The protein level of ACE2 was verified by Western blot. The effects of GMI on cell viability of HEK293T/ACE2 and lung epithelial WI38-2RA cells were determined by MTT assay. Mice received GMI via nebulizer. RESULTS GMI did not affect the cell viability of HEK293T/ACE2, WI38-2RA and macrophages. Functional studies showed that GMI inhibited GFP expressing SARS-CoV-2 pseudovirus from infecting HEK293T/ACE2 cells. GMI slightly interfered the interaction between ACE2 and Spike protein. GMI interacted with S2 domain of Spike protein. Specifically, GMI dramatically reduced ACE2 expression in HEK293T/ACE2 and WI38-2RA cells. Mechanistically, GMI induced ACE2 degradation via activating protein degradation system, including proteasome and lysosome. Abolishing proteasome and lysosome by MG132 and bafilomycin A1, respectively, rescued GMI-reduced ACE2 levels. In addition, GMI triggered dynamin and lipid raft-mediated ACE2 endocytosis. ACE2 levels were downregulated in the lung tissue after the mice inhaling GMI. CONCLUSIONS GMI prevents SARS-CoV-2 pseudovirus infection via induction of ACE2 degradation in host cells. Our findings suggest that GMI will be a potential prevention agent to alleviate SARS-CoV-2 infection.
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Affiliation(s)
- Hsin Yeh
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Di Ngoc Kha Vo
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Zhi-Hu Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ha Phan Thanh Ho
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Wei-Jyun Hua
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Wei-Lun Qiu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ming-Han Tsai
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Research Center for Epidemic Prevention, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Tung-Yi Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Research Center for Epidemic Prevention, National Yang Ming Chiao Tung University, Taipei, Taiwan; Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Lin ZH, Hu J, Shi H, Liaw CC, Qiu WL, Hsu WH, Lin TY. Water extract of medicinal ink (WEMI) attenuates lipopolysaccharide-induced NO production of Raw264.7 cells via downregulating JAK2/STAT3-mediated iNOS expression. J Ethnopharmacol 2022; 282:114636. [PMID: 34520830 DOI: 10.1016/j.jep.2021.114636] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/01/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Medicinal ink is used as a traditional topical medicine for treating inflammatory diseases via detoxification, relieving pain, hemostasis, and reducing swelling. However, the effect of medicinal ink on the inhibition of inflammatory responses and the underlying molecular mechanism remain unclear. AIM OF THE STUDY The present study aimed to investigate the anti-inflammatory function of water extract of medical ink (WEMI) and elucidate its active mechanisms. MATERIALS AND METHODS Cell viability was assessed using crystal violet staining assay. Interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were detected by ELISA. Nitric oxide (NO) production was measured by Griess assay. The activation of inflammatory signaling molecules stimulated by lipopolysaccharide (LPS) was evaluated by assessing levels of inducible nitric oxide synthase (iNOS), phosphorylated Janus kinase 2 (JAK2) and signal transducer and activator of transcription 3 (STAT3) using Western blot assay. RESULTS Water extract of medical ink (WEMI) did not present cytotoxic effect on murine macrophage Raw264.7 cells. High dosage of WEMI slightly rescued LPS-suppressed cell viability of Raw264.7 cells. WEMI did not induce NO production or IL-6 secretion, though WEMI significantly induced secretion of TNF-α on Raw264.7 cells not stimulated with LPS. On the other hand, LPS effectively stimulated inflammation on Raw264.7 cells; however, WEMI dramatically reduced LPS-induced NO production. WEMI alleviated LPS-stimulated IL-6 secretion but did not affect the content of TNF-α. In addition, WEMI effectively reduced expression of iNOS by abolishing LPS-mediated phosphorylation of JAK2 and STAT3 but not TLR4-mediated NF-κB and MAPK molecules. CONCLUSIONS Our findings suggest that WEMI targets of the JAK2/STAT3-mediated iNOS expression play a key role in alleviating LPS-induced inflammatory responses in RAW264.7 macrophages. Therefore, medicinal ink may be a potential topical agent for treating fasciitis or synovitis via regulating the immune system.
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Affiliation(s)
- Zhi-Hu Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jinsong Hu
- Ruijin Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai, China
| | - Huagang Shi
- Sichuan Provincial Orthopedics Hospital, Chengdu, Sichuan, China
| | - Chia-Ching Liaw
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Wei-Lun Qiu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wei-Hung Hsu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; LO-Sheng Hospital Ministry of Health and Welfare, Taipei, Taiwan; College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tung-Yi Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Qiu WL, Hsu WH, Tsao SM, Tseng AJ, Lin ZH, Hua WJ, Yeh H, Lin TE, Chen CC, Chen LS, Lin TY. WSG, a Glucose-Rich Polysaccharide from Ganoderma lucidum, Combined with Cisplatin Potentiates Inhibition of Lung Cancer In Vitro and In Vivo. Polymers (Basel) 2021; 13:polym13244353. [PMID: 34960904 PMCID: PMC8705874 DOI: 10.3390/polym13244353] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/09/2021] [Accepted: 12/09/2021] [Indexed: 12/27/2022] Open
Abstract
Lung cancer has the highest global mortality rate of any cancer. Although targeted therapeutic drugs are commercially available, the common drug resistance and insensitivity to cisplatin-based chemotherapy, a common clinical treatment for lung cancer, have prompted active research on alternative lung cancer therapies and methods for mitigating cisplatin-related complications. In this study, we investigated the effect of WSG, a glucose-rich, water soluble polysaccharide derived from Ganoderma lucidum, on cisplatin-based treatment for lung cancer. Murine Lewis lung carcinoma (LLC1) cells were injected into C57BL/6 mice subcutaneously and through the tail vein. The combined administration of WSG and cisplatin effectively inhibited tumor growth and the formation of metastatic nodules in the lung tissue of the mice. Moreover, WSG increased the survival rate of mice receiving cisplatin. Co-treatment with WSG and cisplatin induced a synergistic inhibitory effect on the growth of lung cancer cells, enhancing the apoptotic responses mediated by cisplatin. WSG also reduced the cytotoxic effect of cisplatin in both macrophages and normal lung fibroblasts. Our findings suggest that WSG can increase the therapeutic effectiveness of cisplatin. In clinical settings, WSG may be used as an adjuvant or supplementary agent.
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Affiliation(s)
- Wei-Lun Qiu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan; (W.-L.Q.); (W.-H.H.); (A.-J.T.); (Z.-H.L.); (W.-J.H.); (H.Y.)
| | - Wei-Hung Hsu
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan; (W.-L.Q.); (W.-H.H.); (A.-J.T.); (Z.-H.L.); (W.-J.H.); (H.Y.)
- LO-Sheng Hospital Ministry of Health and Welfare, New Taipei 242, Taiwan
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Shu-Ming Tsao
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan;
| | - Ai-Jung Tseng
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan; (W.-L.Q.); (W.-H.H.); (A.-J.T.); (Z.-H.L.); (W.-J.H.); (H.Y.)
| | - Zhi-Hu Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan; (W.-L.Q.); (W.-H.H.); (A.-J.T.); (Z.-H.L.); (W.-J.H.); (H.Y.)
| | - Wei-Jyun Hua
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan; (W.-L.Q.); (W.-H.H.); (A.-J.T.); (Z.-H.L.); (W.-J.H.); (H.Y.)
- Program in Molecular Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
| | - Hsin Yeh
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan; (W.-L.Q.); (W.-H.H.); (A.-J.T.); (Z.-H.L.); (W.-J.H.); (H.Y.)
| | - Tzu-En Lin
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan;
| | - Chien-Chang Chen
- The General Education Center, Ming Chi University of Technology, New Taipei 243, Taiwan;
| | - Li-Sheng Chen
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (L.-S.C.); or (T.-Y.L.)
| | - Tung-Yi Lin
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan; (W.-L.Q.); (W.-H.H.); (A.-J.T.); (Z.-H.L.); (W.-J.H.); (H.Y.)
- Program in Molecular Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
- Biomedical Industry Ph.D. Program, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
- Correspondence: (L.-S.C.); or (T.-Y.L.)
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Hsu WH, Qiu WL, Tsao SM, Tseng AJ, Lu MK, Hua WJ, Cheng HC, Hsu HY, Lin TY. Effects of WSG, a polysaccharide from Ganoderma lucidum, on suppressing cell growth and mobility of lung cancer. Int J Biol Macromol 2020; 165:1604-1613. [PMID: 33011264 DOI: 10.1016/j.ijbiomac.2020.09.227] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/07/2020] [Accepted: 09/24/2020] [Indexed: 01/02/2023]
Abstract
WSG is a water soluble polysaccharides isolated from Ganoderma lucidum. In this study, we showed that WSG, a glucose-rich polysaccharide with an average molecular mass of approximately 1000 kDa, effectively inhibited cell viability and mobility of lung cancer cells. Functional studies revealed that WSG reduced phosphorylation of ERK1/2 in cells upon either EGF or TGFβ stimulation. WSG also inhibited phosphorylation of multiple intracellular signaling molecules such as FAK, AKT and Smad2. Mechanistically, we demonstrated that WSG induced degradation of TGFβ and EGF receptors via proteasome and lysosome, respectively. Moreover, we found that WSG significantly suppressed lung tumor growth, reduced the size of metastatic nodules in the lungs and prolonged the survival of LLC1-bearing mice. Our findings suggested that WSG may have potential as a therapeutic intervention for treatment of lung cancer.
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Affiliation(s)
- Wei-Hung Hsu
- Institute of Traditional Medicine, National Yang-Ming University, Taipei, Taiwan; LO-Sheng Hospital, Ministry of Health and Welfare, Taipei, Taiwan; School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Lun Qiu
- Institute of Traditional Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shu-Ming Tsao
- Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ai-Jung Tseng
- Institute of Traditional Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Mei-Kuang Lu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan; Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan
| | - Wei-Jyun Hua
- Institute of Traditional Medicine, National Yang-Ming University, Taipei, Taiwan; Program in Molecular Medicine, National Yang-Ming University
| | - Hsin-Chung Cheng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Hsien-Yeh Hsu
- Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan.
| | - Tung-Yi Lin
- Institute of Traditional Medicine, National Yang-Ming University, Taipei, Taiwan; Program in Molecular Medicine, National Yang-Ming University.
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Qiu WL, Tseng AJ, Hsu HY, Hsu WH, Lin ZH, Hua WJ, Lin TY. Fucoidan increased the sensitivity to gefitinib in lung cancer cells correlates with reduction of TGFβ-mediated Slug expression. Int J Biol Macromol 2020; 153:796-805. [DOI: 10.1016/j.ijbiomac.2020.03.066] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/02/2020] [Accepted: 03/10/2020] [Indexed: 12/20/2022]
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Lin TY, Tseng AJ, Qiu WL, Chao CH, Lu MK. A sulfated glucan from Antrodia cinnamomea reduces Slug expression through regulation of TGFβ/AKT/GSK3β axis in lung cancer. Carbohydr Polym 2019; 210:175-184. [DOI: 10.1016/j.carbpol.2019.01.078] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 01/02/2023]
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11
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Qiu WL, Liu SX, Yuan WH, Lin GC, Zhou XJ, Pan KF, Wang GM, Tang YS, Zhou ZY, Xu XQ. Evaluation of Free Flaps Transferred by Microvascular Anastomosis in Oral and Maxillofacial Surgery. J Reconstr Microsurg 2008; 1:75-80. [PMID: 6544346 DOI: 10.1055/s-2007-1007058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The authors discuss indications for the use of microvascular free flaps transferred to the oral and maxillofacial region. A series of 139 cases, involving 145 free flaps, is reported over a three year period. The overall success rate for all types of flaps was 89.3%. Advantages and disadvantages of the use of various flaps are presented and suggestions are offered to avoid complications.
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Kuriakose MA, Chen WT, He ZM, Sikora AG, Zhang P, Zhang ZY, Qiu WL, Hsu DF, McMunn-Coffran C, Brown SM, Elango EM, Delacure MD, Chen FA. Selection and validation of differentially expressed genes in head and neck cancer. Cell Mol Life Sci 2004; 61:1372-83. [PMID: 15170515 DOI: 10.1007/s00018-004-4069-0] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We applied a robust combinatorial (multi-test) approach to microarray data to identify genes consistently up- or down-regulated in head and neck squamous cell carcinoma (HNSCC). RNA was extracted from 22 paired samples of HNSCC and normal tissue from the same donors and hybridized to the Affymetrix U95A chip. Forty-two differentially expressed probe sets (representing 38 genes and one expressed sequence tag) satisfied all statistical tests of significance and were selected for further validation. Selected probe sets were validated by hierarchical clustering, multiple probe set concordance, and target-subunit agreement. In addition, real-time PCR analysis of 8 representative (randomly selected from 38) genes performed on both microarray-tested and independently obtained samples correlated well with the microarray data. The genes identified and validated by this method were in comparatively good agreement with other rigorous HNSCC microarray studies. From this study, we conclude that combinatorial analysis of microarray data is a promising technique for identifying differentially expressed genes with few false positives.
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Affiliation(s)
- M A Kuriakose
- Department of Otolaryngology, Division of Head and Neck Surgery, New York School of Medicine, 411 Rusk Research Building, 400E, 34th Street, New York, NY 10016, USA
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13
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Zheng JW, Qiu WL, Zhang ZY, Lin GC, Zhu HG. [Reconstruction of the common carotid artery with freeze dried arterial allografts in goats]. Shanghai Kou Qiang Yi Xue 2001; 10:353-6. [PMID: 14993972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To observe the patency rate and histopathologic changes at different times after implantation of freeze dried arterial allografts. METHODS 4 healthy adult goats were used as the experimental models. A segment of the common carotid artery 2 cm in length was surgically removed and bridged with freeze-dried graft of common carotid artery from another goat. The eight necks of 4 animals were divided into A and B group randomly, each containing 4 arteries. In group A, both cut ends of the carotid artery were anastomosed end to end with the arterial allograft. In group B, the proximal end of the carotid artery was anastomosed end to side with the allograft. The patency of the graft was monitored with Laser Doppler Flowmeter within one week and carotid angiography was performed in selected animal. The allografts with anastomoses were harvested at 1 week, 2 weeks, 3 months and 6 months after implantation, respectively. The surgical fresh specimens were prepared and subject to histopathologic evaluation under light microscope, scanning electron microscope and transmission electron microscope. RESULTS In Group A, 2 grafts were patent at 1 week and 2 weeks, respectively. One graft was not patent at 3 months, one was largely occluded at 6 months, only 1/4 part of the graft was patent. In Group B, 3 grafts were patent at 1 week, 2 weeks, 3 months, respectively. One graft was occluded at 6 months. There was no significant difference in patency rate between the two groups. Histopathologic examinations showed that in freezed dried arterial homograft, the endothelial cells were lost but the matrix was complete. One week after implantation, mononuclear macrophages were infiltrated into the wall in large amount and adventitia of loose connective tissues was formed. After 2 weeks of implantation, intimia was noted, intimal hyperplasia was also noted at the anastomotic sites and migrated toward the central portions of the graft. At 3 months, the homograft displayed a complete endothelial cell coverage with only small areas of fresh fibrin and endothelial disruption. The rejection reaction was diminished prominently. The medial matrix was largely substituted by proliferation of smooth muscle cells, the homograft was near normal in structure. CONCLUSION Reconstruction of carotid artery defect with freeze dried arterial homografts was feasible. The rejection reaction was not significant. If the endothelial lining does not regenerate within 3 months, long term graft patency is hardly achieved.
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Affiliation(s)
- J W Zheng
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China.
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Li ZY, Qiu WL, Guo W, Lin GC, Liu Z, Yu Q. [Facial swelling, fever, hypoproteinemia and exhaustion: discussion of an unusual case]. Shanghai Kou Qiang Yi Xue 2001; 10:361-5. [PMID: 14993974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- Z Y Li
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China.
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15
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Fang B, Qiu WL, Yuan WH, Tang YS, Sheng GF, Zhang H, Chen JY, Zhu M. [A primary study on the relationship between condyle position and anterior distraction for cross bite caused by cleft lip and palate]. Shanghai Kou Qiang Yi Xue 2001; 10:292-4. [PMID: 14993953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To evaluate the changes of the position of the mandibular condyle in cleft lip and palate patients with secondary bony cross-bite deformity after early orthodontic treatment with extraoral bow and facial mask. METHODS The TMJ topograph 6 months before and after treatment was investigated in 8 patients. The width of the anterior,superior and posterior space of the TMJ was compared prior to and post treatment. RESULTS The results showed that there was no significant difference in the width of the three spaces of the TMJ before and after treatment. CONCLUSION The position of the mandibular condyle had no significant change after maxillary anterior distraction with extraoral bow and facial mask.
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Affiliation(s)
- B Fang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China
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16
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Abstract
We describe an osteoid osteoma in the articular eminence of the left temporomandibular joint of a 24-year-old woman. This is an uncommon tumour of the jaws, and has not previously been reported in this location. The mass was removed, she made a good recovery, and there are not signs of recurrence four years later.
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Affiliation(s)
- C Yang
- Affiliated 9th People's Hospital, Shanghai Second Medical University, Shanghai, People's Republic of China
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17
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Wang XD, Yang C, Qiu WL, Zhou XJ, Cai XY, Ha Q. [An experimental study on arthroscopic chondrocytes transplantation for repair of osteochondral defects in TMJ]. Shanghai Kou Qiang Yi Xue 2001; 10:256-9. [PMID: 14994011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To certify the feasibility of arthroscopic chondrocytes transplantation in temporomandibular joint (TMJ) and the nature of repaired tissue with autologous chondrocytes transplantation in osteochondral defects. METHODS The animal models of osteochondral defects in TMJ were established in 12 rhesus monkeys. Autologous auricular chondrocytes were transplanted to the defects by arthroscope. Healing of the defects was assessed by gross examination, light microscope, immunohistochemical staining. RESULTS The repaired tissues with chondrocytes transplantation were fibrocartilages. CONCLUSION The technique of arthroscopic chondrocytes transplantation is feasible and the nature of repaired tissue is closest to the normal cartilage, compared with those of subchondral drilling and cartilage transplantation.
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Affiliation(s)
- X D Wang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai, 200011 China
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18
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Yang C, Wang XD, Qiu WL, Cai XY, Ha Q. [A experimental study on arthroscopic auricular cartilage transplantation for repair of osteochondral defect of temporomandibular joint(TMJ)]. Shanghai Kou Qiang Yi Xue 2001; 10:260-2. [PMID: 14994012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To study the feasibility and resurfacing ability of auricular cartilage transplantation for osteochondral defect of TMJ. METHODS Arthroscopic auricular cartilage transplantations were undertaken in 12 rhesus monkeys(24 joints) to repair the osteochondral defects in TMJs. The repaired tissues were examined by gross examination, light microscope and immunohistochemistry(IHC) 4 weeks,8 weeks,12 weeks and 24 weeks postoperatively. RESULTS The defects were repaired 8 weeks after operation. As time goes on, the chondrocytes in defects declined and fibroblast increased at the same time. The IHC showed slight positive stain of type II collagen. CONCLUSION The osteochondral defects of TMJ can be restored by autologous auricular cartilage. The nature of repaired tissue was fibrocartilage like tissue at first and then fibrotic tissue.
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Affiliation(s)
- C Yang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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19
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Wang XD, Yang C, Qiu WL, Cai XY, Hao Q. [A experimental study on arthroscopic subchondral drilling for repair of osteochondral defect of temporomandibular joint (TMJ)]. Shanghai Kou Qiang Yi Xue 2001; 10:252-5. [PMID: 14994010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To investigate the resurfacing ability of TMJ cartilage of rhesus monkeys with osteochondral defect. METHODS 3-millimeter-diameter, 5-millimeter-depth, cylindrical full-thickness drilled osteochondral defect of articular cartilage on the functional slope of TMJ were made on 12 rhesus monkeys(24 joints) by arthroscope. Every 3 monkeys were sacrificed at 4, 8, 12 and 24 weeks postoperatively and the repaired tissue were studied by gross observation, histology and immunohistochemical staining (IHC). RESULTS The repaired tissues after subchondral drilling were dominated with fibrous tissues and IHC showed that Type II collagen stain was negative and Type I collagen stain was positive. CONCLUSION The osteochondral defect in TMJ can be repaired by arthroscopic subchondral drilling. The nature of repaired tissue is fibrous connective tissue, something different from normal cartilage. Subchondral drilling can be regarded as one of the treatments for articular cartilage defect.
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Affiliation(s)
- X D Wang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai, 200011 China
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20
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Wang XD, Yang C, Qiu WL, Cai XY, Ha Q. [Establishment of an animal model of osteochondral defect by arthroscope in TMJ]. Shanghai Kou Qiang Yi Xue 2001; 10:249-51. [PMID: 14994009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To create an animal model of osteochondral defect in temporomandibular joint (TMJ) by arthroscope to minimize the surgical injury. METHODS Subchondral drilling on the anterior slope of condyle and posterior slope of eminence were performed on 12 rhesus monkeys (24 joints) by arthroscope. RESULTS The osteochondral defect models of TMJ were successfully made on 12 monkeys (24 joints). CONCLUSION There are fewer injuries and bias in the animal models of TMJ osteochondral defect by arthroscope than by open surgery.
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Affiliation(s)
- X D Wang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai, 200011, China
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21
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Deng YQ, Qiu WL, He RG, Lin GC, Chen WT, Zhou XJ. [Experimental study of the effect of TNP-470 on human salivary adenoid cystic carcinoma cell in vitro]. Shanghai Kou Qiang Yi Xue 2001; 10:145-8, 153. [PMID: 14994042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To investigate the effects of TNP-470 on human salivary adenoid cystic carcinoma cell line ACC M in vitro. METHODS Cell proliferation was assessed by MTT assays and dye exclusion counting. Morphological changes of apoptosis were observed with fluorescent microscope. DNA ladder, apoptosis rate and cell cycle were examined by DNA agarose gel electronphores and fluorescence flow cytometry (FCM), respectively. RESULTS The 50% inhibitory concentrations (IC50) of TNP-470 on ACC-M cells proliferation by MTT assays and dye exclusion counting were 40.68microg/ml and 46.38microg/ml. Apoptosis were observed by fluorescent microscope. DNA electrophoresis for the cells treated with TNP-470 showed brighter DNA ladder; Sub-G1 peak and G2/M arrest were also determined by FCM (P<0.01). CONCLUSION TNP-470 has the effect of inducing apoptosis in ACC-M cells in vitro, which may be one of its antitumor mechanisms.
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Affiliation(s)
- Y Q Deng
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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22
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Fan XD, Qiu WL, Zhang ZY, Mao Q, Lin XX. [The DSA features of AVM of jaws]. Shanghai Kou Qiang Yi Xue 2001; 10:62-3, 92. [PMID: 14994084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To evaluate the vascular architecture of AVM of jaws on DSA. METHODS 12 cases of AVM of jaws comprised this study group, and 5 cases in maxilla and 7 cases in mandible, respectively. Seldinger technique was applied to carry out carotid angiography under the guidance of DSA machine (PHILIPS V3000). RESULTS The DSA features of AVM of jaws included varix into the posterior area of jaws. The varix of the maxilla was supplied by the posterior superior alveolar artery and transversal facial artery when the soft tissue was involved, and the varix of the mandible was supplied by the inferior alveolar artery, maxillary and facial artery. CONCLUSION Angiography is considered necessary for the diagnosis and embolization of AVM of jaws, and the varix is the center of lesion.
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Affiliation(s)
- X D Fan
- Department of Radiology, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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23
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Yang YS, Qiu WL, Yuan WH, Tang YS. [Assessment of velopharyngeal function in normal speech by CT]. Shanghai Kou Qiang Yi Xue 2001; 10:10-2. [PMID: 14994067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To find an objective method to assess velopharyngeal function by CT. METHODS Three dimensional conformation of the velopharyngeal orifice of 30 subjects with normal speech at rest and /i:/ position were observed and analyzed. The linear distance and area of velopharyngeal orifice were measured and analyzed statistically. RESULTS The average minimal area of velopharyngeal orifice at/i:/ position was 11.92+/-11.73 mm(2). The physical RVPI was 4.03+/-4.03%. Coronary closure was the most common type of velopharyngeal contraction which accounted for 50%, semi-ring type being 30%, and ring type being 20%. No sagittal closure were seen in this study. There were 70% subjects whose position of velopharyngeal closure was at the level of the first cervical vertebra, 26.7% above the level and 3.3% below it. The arrange of velopharyngeal closure was 9-12 mm in 83.4% subjects, and 3-6mm in 16.6%. CONCLUSION As a method of assessing velopharyngeal function, CT can not only observe the conformation of velopharyngeal orifice in three dimensions, but also quantitatively analyze the velopharyngeal function.
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Affiliation(s)
- Y S Yang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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Wu YN, Qiu WL, Zhang ZY, Zhang CP. [A retrospective investigation of shoulder function after RND]. Shanghai Kou Qiang Yi Xue 2001; 10:2-4. [PMID: 14994064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE This study was designed to investigate shoulder syndrome and its influence on daily life and employment, and to seek scientific rational standard for evaluating shoulder syndrome. METHODS Retrospective investigation of shoulder function were carried out in 50 cases after RND through objective evaluation and subjective examination. RESULTS 68% cases complained obvious handicap in their daily life and work, impaired shoulder function after RND can be seen in almost every case. CONCLUSION RND can cause variable degree of disability in the shoulder which influences patients quality of life directly,self evaluation and abducting arm beyond 90 degrees are good standards for evaluating shoulder syndrome.
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Affiliation(s)
- Y N Wu
- Department of Oral and Maxillofacial Surgury, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China
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Fan XD, Qiu WL, Zhang ZY, Zhang CP, Tang YS, Yao LH, Hu YJ, Mao Q. [Embolization of AVM of jaws]. Shanghai Kou Qiang Yi Xue 2001; 10:64-6. [PMID: 14994085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To report our experience to embolize the AVM of jaws by direct percutaneous puncture. in conjunction with endovascular therapy. METHODS 3 cases of AVM of mandible and 3 cases of AVM of maxilla comprised this study group. The patients were embolized with fibered coils, PVA and NBCA. The coils were placed directly into the center of the intraosseous lesion. The procedure was under the guidance of DSA machine (PHILIPS V3000). RESULTS The acute arterial bleeding in 4 patients was controllable. The other two cases with oozing bleeding and a warm soft mass on the left face with a palpable pulse respectively, their symptoms and signs got improved a lot. The pericoronal oozing of blood in all patients disappeared during a 3 to 24 months follow-up and new bone formation was found in the follow-up radiography. CONCLUSION The embolization of the AVM of jaws by direct percutaneous puncture in conjunction with endovascular therapy is effective and safe, however the longer follow-up is expected.
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Affiliation(s)
- X D Fan
- Department of Radiology, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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26
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Fan XD, Qiu WL, Zhagn ZY, Sun DX. [The diagnostic value of CT for arteriovenous malformations of jaws]. Shanghai Kou Qiang Yi Xue 2001; 10:59-61. [PMID: 14994083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To evaluate the diagnostic value of CT for arteriovenous malformations (AVM) of jaws. METHODS 12 cases of central vascular malformations of jaws comprised this study group, 5 cases in maxilla and 7cases in mandible, respectively. The X-ray projection included panoramic radiography, Water's position and posterioanterior and lateral oblique view of mandible. The CT scans were obtained on Somatom ART and the axial and coronal scanning modalities were applied. RESULTS Radiographically different signs of the AVM of jaws were demonstrated, X plain film has no pathognomic features. The CT features included lytic expansion of bone, expanded space of marrow, obliteration of trabeculae and intact cortex of jaws. These signs were demonstrated very well in bone window setting. There were three forms of demonstrations of AVM of jaws as following: (1) local unilocular, (2) diffused unilocular, (3) multilocular. CONCLUSION CT is helpful for early diagnosis of AVM of jaws, and can provide the guidance for the direct puncture embolization.
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Affiliation(s)
- X D Fan
- Department of Radiology, Ninth People's Hospital,Shanghai Second Medical University, Shanghai 200011, China
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27
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Zheng JW, Qiu WL, Zhang ZY, Zhu HG, Lin GC. [Reconstruction of the common carotid artery with autogenous external jugular vein graft in goats]. Shanghai Kou Qiang Yi Xue 2001; 10:27-30. [PMID: 14994073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To establish a method for reconstruction of carotid artery defect with autogenous graft of external jugular vein, to investigate the patency rate and histopathologic changes at different times after implantation. METHODS 3 healthy adult goats were used as the experimental models. A segment of 2 cm autogenous external jugular vein was used to bridge a surgical defect of the common carotid artery (2 cm long). The six necks of the three animals were divided into A and B group randomly. In Group A, both cut ends of the artery were anastomosed end to end with the venous graft. In Group B, the proximal end of the artery was anastomosed end to side with the venous graft. The patency rate was recorded at different times. The venous grafts with anastomotic sites were harvested at 2 weeks, 3 months and 6 months after implantation, respectively, for histopathologic examinations. RESULTS The grafts in Group A were patent at 2 weeks and 3 months, but occluded at 6 months. The grafts in Group B were patent at 2 weeks and 6 months, but not patent at 3 months. Chi-square test demonstrated insignificant difference in patency rate between Group A and Group B. Histopathologic examinations showed intimal hyperplasia and venous arterialization in venous autografts. The venous wall was loose and edematous, intimal and subintimal hyperplasia was prominent at 2 weeks. Proliferation and migration of smooth muscle cell was found at 3 months after implantation. At 6 months, the venous media was predominantly composed of smooth muscle. Intimal hyperplasia was most prominent adjacent to the anastomosis. CONCLUSION Reconstruction of the common carotid artery with autogenous graft of external jugular vein had a higher patency rate. The main histopathologic changes after implantation is intimal hyperplasia and venous arterialization. Intimal hyperplasia is the result of proliferation and migration of host arterial smooth muscle cell, which passes through the anastomosis to the intima of the vein graft.
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Affiliation(s)
- J W Zheng
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China.
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Gu YF, Qiu WL, Luo JC. [The MRI of the occult cervical metastasis with malignant tumor of the head and neck]. Shanghai Kou Qiang Yi Xue 2001; 10:13-5. [PMID: 14994068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To detect the occult cervical metastasis with MRI so as to find out its diagnostic accurate rate. METHODS 41 lateral necks(negative by clinical palpation) with malignant tumor of head and neck were examined by MRI before operation and correlated with postoperative pathologic finding. RESULTS With MRI evaluation occult cervical metastasis has higher accurate rate(75%), nine of 12 lateral metastatic positive necks were detected on MRI, other three false negative necks were not found, owing to no change of the shape of the metastatic nodes. CONCLUSION At present, MRI is one of the effective methods evaluating occult cervical metastasis with malignant tumor of head and neck, but it has still a certain limitation.
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Affiliation(s)
- Y F Gu
- Department of Oral and Maxillofacial Surgey, Tongji Hospital, Tongji University, Shanghai 200065, China
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29
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Affiliation(s)
- X D Fan
- Department of Oral & Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, People's Republic of China
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Zeng ZR, Qiu WL, Xing H, Zhou JH, Huang ZF. Hydroxy-dibenzo crown ether stationary phase for capillary gas chromatography using sol-gel technology. Se Pu 2000; 18:304-7. [PMID: 12541503] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
A new kind of crown ether, OH-dibenzo-14-crown-4 (OH-DB14C4), is prepared and coated onto the fused silica capillary by sol-gel process. Chromatographic characteristics including column efficiency (> 3,000 plates/m), thermal stability (to 330 degrees C) and ability of deactivation are studied. The selectivity of new stationary phase is superior to sol-gel OH-terminal silicone oil (OH-TSO) for positional isomers of some aromatic compounds such as xylene, dichlorobenzene, nitrotoluene, nitrochlorobenzene. The new stationary phase has high sample capacity for separation of small molecular mass compounds: low-molecular-mass alcohols, ethers and ketones, short-chain fatty acids and volatile amines.
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Affiliation(s)
- Z R Zeng
- Department of Chemistry, Wuhan University, Wuhan 430072, China.
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Li T, Qiu WL, Zhang ZY, Qian GX, He RG, Zhu HG, Hu L, Chen SS. [Preliminary clinical application of DNL for treatment of oral squamous cell carcinoma modified with TNF-alpha gene]. Shanghai Kou Qiang Yi Xue 2000; 9:114-5. [PMID: 15014825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- T Li
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University. Shanghai 200011, China
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32
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Zheng JW, Qiu WL, Zhang ZY, Lin GC, Zhu HG. [Anatomical and histologic study of the cervical vessels in goats]. Shanghai Kou Qiang Yi Xue 2000; 9:39-41. [PMID: 15014850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:To investigate the normal anatomic relations and histologic features of the cervical arteries and veins of goat, with the aim of providing a basis for resection and reconstruction of the common carotid artery.MATERIALS AND METHODS: Surgical dissection was performed on 15 healthy adult goats under general anaesthesia. The external diameters of the common carotid artery (CCA) and external jugular vein(EJV) were measured at their midpoints. 1 cm of the CCA and EJV was subject to light microscopic examination. Direct carotid angiography was performed on 2 selected goats to observe the course and branches of the carotid artery and normal blood flow mapping of the CCA was recorded using Laser Doppler Flowmeter. RESULTS:The average external diameter of the EJV was 5.4 mm for the left side and 5.3 mm for the right side. The average external diameter of the CCA was 3.8 mm for the left side and 3.6 mm for the right side. Histologic examinations found that the media of the carotid artery had 10-15 layers of smooth muscles. The EJV had valvulae, its wall was thin, only 1-2 layers of smooth muscle were contained in its medium. CONCLUSION:The CCA and EJV of the goat had a longer course in the neck, and a larger diameter (3-5 mm). Their histologic structures were similar to that of the human being, which makes it advantageous to be more often used as an animal model in experimental surgery.
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Affiliation(s)
- J W Zheng
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital,Shanghai Second Medical University. Shanghai 200011,China
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Qiu CP, Qiu WL, Zhou XJ, He RG. [The Inhibitory Study of TNP 470 Combined CDDP on the Tumor Growth and Lung Metastasis of Adenoid Cystic Carcinoma ACC M in Nude Mice]. Shanghai Kou Qiang Yi Xue 2000; 9:5-7. [PMID: 15014835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:To study the effect of TNP-470 combined CDDP on the tumor growth and lung metastasis of cell strain ACC-M in vivo. METHODS:High potential lung metastatic adenoid cystic carcinoma cell strains (ACC-M) 5x10(5) were injected simultaneously to 18 nude mice subcutaneously and enously. The animals were randomly divided into 3 groups. In group 1, TNP-470 was administered subcutaneously at the dose of 30mg/kg every other day for 2 weeks from the beginning of 3(rd) week to the end of 4(th) week. In group 2, 5mg/kg CDDP were injected into peritoneal cavity at the beginning of 3(rd) week and 4(th) week and TNP-470 in the same manner as group 1 additionally. In group 3, the same volume of 0.97% NaCl was injected in the manner of group 1. The mice were sacrificed by dislocating the neck at the end of 4 weeks. The tumor size and weights were recorded. The vascular density was measured by rabbit-anti-human factor VIII antibody stain. The results were analyzed by Student t and X(2) test. RESULTS:Group 1 and group 2 had fewer tumor weight and lung metastasis than the 3(rd) group. There was significant difference in the tumor weight and lung metastasis between group 1 and group 2. But the vascular density had no difference among three groups. CONCLUSION:TNP-470 combined CDDP has stronger inhibition on both the tumor growth and lung metastasis of human adenoid cystic carcinoma ACC-M than used alone.
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Affiliation(s)
- C P Qiu
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University. Shanghai 200011, China
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Gao YM, Qiu WL, Tang YS, Shen GF. Evaluation of the treatment for micromandibular deformity by distraction osteogenesis with submerged intraoral device. Chin J Dent Res 1999; 2:31-7. [PMID: 10863414] [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: 02/16/2023]
Abstract
OBJECTIVE To evaluate the results of distraction osteogenesis for correcting the micromandible with an intraoral device. MATERIALS AND METHODS Eight cases of micromandible resulting from temporomandibular joint (TMJ) ankylosis and first and second branchial arch syndrome received treatment by distraction osteogenesis. Subjects included 5 females and 3 males, ranging in age from 10 to 43 years (avg 20.25). Five micromandibles were associated with obvious mandibular asymmetry. An osteotomy was performed on bilateral mandibular bodies by intraoral approach. Elongation was started on the 5th or 6th day postoperation at a rate of 0.8 to 1 mm per day. The distractors were removed after a consolidation period from 71 to 139 days. RESULTS The distractions were fulfilled with a range of 8.5 to 24.4 mm. Pain appeared in osteotomy region when the 1 mm distraction was carried out once a day and disappeared when it was divided into twice a day. Mandibular lengthening was successful. Micromandible and facial asymmetries were corrected satisfactorily. The follow-up period ranged from a minimum of 1 month to a maximum of 10 months. There was no recurrence. One case of soft tissue infection and one case of lower lip numbness were reported. There were no cases of infection or other disturbance of wound healing or pseudarthrosis. CONCLUSIONS Because of its advantage in little injury, avoiding bone grafting, and few complications, intraoral distraction osteogenesis is a valuable approach to correct mandibular agenesis. However, in the management of mandibular deformities, distraction osteogenesis achieves better results when combined with other orthognathic operations. How to control the direction of distraction is a problem that needs further study.
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Affiliation(s)
- Y M Gao
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Shanghai Second Medical University (SSMU), P. R. China
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Fang B, Qiu WL, Yuan WH, Tang YS, Shen GF, Zhang H. [Early face mask treatment for maxillary hyperplasia in patients with cleft lip and Palate]. Shanghai Kou Qiang Yi Xue 1999; 8:206-9. [PMID: 15048211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE: Early interfering orthodontics were used to treat maxillary hyperplasia by face mask and extra-oral bow technique in teenages.The position changes of maxilla after orthodontic treatment were evaluated.METHODS:The cephlometric variables before and after treatment were measured.Variables after treatment were compared with normal values in children with same ages,and changes of the maxillary position was determind.RESULTS:The position of the maxilla after orthopedics was significantly advanced (P<0.001),but there was still difference from normal values.CONCLUSION:In the peroid of mixed dentition of patients with cleft lip and palate,early orthodontics on maxillary hyperplasia could stimulate maxillary development and growth,remove or improve crossbite,extra-oral bow and face mask were efficient tools for this kind of patients.
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Affiliation(s)
- B Fang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University. Shanghai 200011,China
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Fang B, Qiu WL, Ye SB. [The changes of chewing ability after orthognathic therapy: electromyographic analysis]. Shanghai Kou Qiang Yi Xue 1999; 8:143-6. [PMID: 15048242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:The maxillo-facial skeletal deformity can only be corrected through orthognathics that consists of orthodontics and operation.There are various changes in aspect of the bite relationship between upper and lower dentition after orthognathic surgery.The change feature of the chewing efficiency of oral maxillary system can be detected through comparing studying of the contracti on force of chewing muscles before and after surgical operation.METHODS:All 6 patients in this research were diagnosed to be skeletal crossbite.Electromyogram was used to test the change of activity of superficial masseter,temporalis and digastrics.The examination was carried out 1 week before operation and 3 months after the operation. RESULTS:When mandibular is in its rest status,there is no significant difference in the change of muscular activities.when it is active,there is significant difference. CONCLUSION:The chewing ability of masticatory muscles is reduced after orthognathic surgery.The result indicated that there is a negative bite relationship between the upper and lower dentition,the occlusion relationship needs accurate adjustment for gaining stability of oral maxillary system.Therefore,orthodontics after operation is of vital importance.
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Affiliation(s)
- B Fang
- Department of Oral & Maxillofacial Surgery, School of Stomatology, Shanghai Second Medical University. Shanghai 200011 China
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Gao YM, Qiu WL, Shen GF, Tang YS. [A preliminary cephalometric study on characters of facial soft tissue in mandibular asymmetry cases]. Shanghai Kou Qiang Yi Xue 1999; 8:141-2. [PMID: 15048241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE: To study the alterations of facial soft tissue in mandibular asymmetry cases.METHODS:The asymmetric rates of the bone were compared with that of soft tissue by cephalometric analysis in 20 mandibular asymmetry cases by study on the thickness of the soft tissue in special position.RESULTS:It showed that the soft tissue is more symmetric than the bones.CONCLUSION:It can be concluded that the facial soft tissue is not as asymmetric as the bone.This suggests that the reconstrction of the bony deformities and the soft tissue deformities should not be performed at same time.
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Affiliation(s)
- Y M Gao
- Department of Oral & Maxillofacial Surgery, School of Stomatology, Shanghai Second Medical University. Shanghai 200011 China
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Gu ZY, Qiu WL, He RG, Zhang ZY, Zhou XJ. [The in vitro comparison of platelet induced ACC-M cell adhesion with and without Aspirin]. Shanghai Kou Qiang Yi Xue 1999; 8:65-6. [PMID: 15048267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
ObJECTIVE:Observation the affection of aspirin to adhesion of highly metastatic salivary adenoid cystic carcinoma(ACC-M) cell induced by platelet.METHODS:Adhesive ratios of ACC-M cell induced by platelet with or without aspirin were measured.RESULTS:After the addition of platelet rich plasma(PRP),adhesive ratio of ACC-M cell increased significantly (P<0.01). The treatment with aspirin after addition of PRP led to a nonsignificant increase of adhesive ratio (P>0.05).The reduction of adhesive ratio by aspirin was found dosage independent within concentration range of 0.01-0.25g/L of aspirin. CONCLUSION:Adhesion of ACC-M cell was raised by added platelet.Addition of aspirin,platelet induced adhesion of ACC-M cell was inhibited significantly.
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Affiliation(s)
- Z Y Gu
- Department of Oral & Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University. Shanghai 200011,China
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39
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Zhou GY, Zhang ZY, Lin GC, Gu JZ, Qiu WL. [Evaluation of cryosurgery for the management of oral malignant mucomembranous melanoma-A survey of 107 cases reports]. Shanghai Kou Qiang Yi Xue 1999; 8:92-3. [PMID: 15048279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:There were 13 cases underwent operation.24 cases underwent cryosurgery only and 70 cases received comprehensive management,which as cryosurgery,operation,chemotherapy and immuno-therapy.RESULTS:The 3'and 5' year survival rate of three groups were 0.0%,0.0%,37.50%,31.25% and 57.14%,36.07%.There are significant differences between operation group and cryosurgery group and between operation group and comprehensive treatment group.Although the third group got the better result,but the difference between late two groups was not statistical significant.CONCLUSION:It is suggested that comprehensive treatment be the routine regime of melanoma in head and neck. Our experience with review of literature covered the classification, surgical principle and complication was presented.
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Affiliation(s)
- G Y Zhou
- Departmentof Oral & Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University. Shanghai 200011,China
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Fang B, Qiu WL, Yuan WH, Shen GF. [Presurgical infant orthopedics in complete bilateral cleft lip and palate reconstruction]. Shanghai Kou Qiang Yi Xue 1999; 8:96-8. [PMID: 15048281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:This study want to effects on using intraoral-appliance treatment of complete bilateral left lip and Palate in clinic.METHODS:Using Lisson's method preliminary evaluated to effect of presurgical infant orthopedics complete bilateral cleft lip and palate.A sample of 4 cases of 18 weeks infant complete bilateral cleft lip and palate.2 of they are males, others are females.All of they had received presurgical infant orthopedics,Using intraoral appliance. comparison of before and after cast analysis.Evaluate anteiro posteior I, tranverse,oblique degree of the lateral segment, pretrusion premaxilla position change.RESULTS:Every patients after orthopedics treatment had retracted premaxilla come back,corrected of oblique of premaxilla,had lateral segments growth equally on both side,their inclination should be similar.CONCLUSION:Intraoral-appliance can successfully improved malarrangement maxilla of bilateral cleft lip and palate.
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Affiliation(s)
- B Fang
- Department of Oral and Maxillofacial Surgery, Shanghai Ninth People's Hospital, School of Stomotology, Shanghai Second Medical University. Shanghai 200011,China
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Yu CQ, Qiu WL, Hu BP, Ding YM. [Primary research of development of a mouse model for non-bacterial sialoadenitis]. Shanghai Kou Qiang Yi Xue 1999; 8:27-9. [PMID: 15048312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE: To develope a mouse model for non-bacterial sialoadenitis similar to SS.The model of organ-specific to the submandibular gland of mouse has developed for this study. METHODS: Several of the mouse strains were used to the development of non-bacterial sialoadenitis.The injection of syngeneic salivary gland tissue with CFA induced inflammation in submandibular gland in mice.Not all mice had a predictable response. RESULTS: C(57) mice (500microg/ml and 750microg/ml group )appear histologically to be more prove to develop sialoadenitis. CONCLUSION: An animal model of non-bacterial sialoadenitis had been set up,the non-bacterial sialoadentitis may be similar to the autoimmune process in human SS.
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Affiliation(s)
- C Q Yu
- Department of Oral and Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University.Shanghai 200011, China
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Wang W, Qiu WL, Yuan WH, Hu QG, Shen J, Chen Q. [Observation of the biodegradation of domestic poly-DL-lactic acid plates in vivo]. Shanghai Kou Qiang Yi Xue 1999; 8:33-5. [PMID: 15048314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:To analyze the degradation and related factors of domestic poly-DL-lactic acid(PDLLA) plates in vivo. METHODS: The artifical transverse fractures in mandibular bodies of dogs were created and internal fixed with domestic PDLLA plates as experimental group,the implanted PDLLA plates in femurs as control.A certain time after the operation,the plates in fractured and implanted regions were collected and undertaken macroscopy and scanning electromicroscopy(SEM),meanwhile the fracture-healing status was evaluated. RESULTS: With time going on,the surface of domestic PDLLA plates y and density of micro-holes among poly-DL-lactic acid molecules in the PDLLA plates increased gradually.16-20 weeks Domestic PDLLA plates can be gradually biodegradation in vivo,in which it is correspondent with and accelerative the fracture-healing process.
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Affiliation(s)
- W Wang
- Department of Oral and Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University.Shanghai 200011, China
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Wang W, Qiu WL, Yuan WH, Hu QG, Shen J, Chen Q. [Observation in vivo histological response induced by imlplanted domestic poly-DL-lactic acid plates]. Shanghai Kou Qiang Yi Xue 1999; 8:30-2. [PMID: 15048313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:To analyze the histological response and biocompatibility to implanted domestic PDLLA plates in vivo METHODS:Bilateral artificial fractures were created in mandibular bodies in dog and internal fixed with domestic PDLLA plate,TM plate respectively;meanwhile,a domestic PDLLA plate was imlplanted in femur.The interfacial soft tissue around the plates were collected and performed histological study RESULTS:All the skin wound healed well without abscess and fistula formation. From 2 to 4 weeks after the operation,the inflmmatory granulomatous response around the intenal fixation PDLLA plates was more serious than that of the control,in which more macrophages,plasmocytes and less lymphocytes,mononuclear cells infiltrated CONCLUSION:Domestic PDLLA plate is an inert internal fixation material with good biocompatibility, which induced a non-speciflc foreign reaction
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Affiliation(s)
- W Wang
- Department of Oral and Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University.Shanghai 200011, China
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Yu CQ, Qiu WL, Hu BP, Ding YM. [Experimental research on animal model and treatment of Sjogren's syndrome by traditional chinese medicine (TCM)]. Shanghai Kou Qiang Yi Xue 1999; 8:24-6. [PMID: 15048311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:To confirm the function of SS Syrup used in our department. METHODS: Under the basis of TCM and differentiation symptoms of SS,the animal model was established and applied to test the function of SS syrup.There are three indices to be observed,weight change,volume of drinking water daily,cAMP change. RESULTS: The three observed indices of dificiency symptom model had been rectified by SS syrup. CONCLUSION: SS syrup has two main functions:(1)reinforcing of the spleen and tonifying qi;(2)nourishing liver-yin and kidney-yin as well as removing pathogentic heat and fire.
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Affiliation(s)
- C Q Yu
- Department of Oral and Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University.Shanghai 200011, China
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Yu CQ, Qiu WL, Hu BP, Ding YM. [Detection of clinical diagnosis and different symptoms of Sjogren's syndrome by traditional chinese medicine (TCM)]. Shanghai Kou Qiang Yi Xue 1999; 8:21-3. [PMID: 15048310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:To search for the appropriate diagnostic criteria of SS and confirm the differentiation of SS.METHODS:The European di agnostic criteria has been used in clinic work for about two years,and differentiated the symptoms of SS by TCM. The specialty and relationship between them was made an inquiry.RESULTS:The European criteria set for SS offers the clinic work a practical method to correctly classify the patients suspected of having this disorder. It refers to the signs and symptoms caused by the insufficiency of spleen-qi with deficiency of liver-yin and kidney-yin.CONCLUSION:It has been further proved for easy to make up the diagnostic of SS and its treatment using traditional chinese medicine.
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Affiliation(s)
- C Q Yu
- Department of Oral and Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University.Shanghai 200011, China
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Xie XT, Qiu WL, Yuan WH, Wang ZH. [A comparison of the effects of 180kv X-ray radiation and cobalt-60 radiation on the jaws of the guinea pigs]. Shanghai Kou Qiang Yi Xue 1998; 7:125-9. [PMID: 15071645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE: Study of the effects of 180kv x-ray and cobalt-60 radiation on jaws and enhance the understanding of pathology of osteroradionecrosis of jaws(ORNJ).METHODS: 128 guinea pigs were grouped according to different irradiation sources and doses.Fractioned radiation from both sources was delivered in right mandible.The teeth extractions were conducted one week prior to radiation and 1,3,5 months after radiation respectively.Following radiation,the guinea pigs were examined by gross observation, x-ray film and histopathological examination at regular interval. RESULTS: Bone resorption occured within 1 month after irradiation as result of osteoblast inhibition and osteoclast activation.From 2 to 4 month afterwards,the number of osteocytes reduced and pyknosis, empty lacunae as well as obliteration of small vessels in periodontal membrane were commonly seen.The teeth extractions conducted at 3 months,5 months after radiation lead to ORNJ in 7 amimals (14.6%).CONCLUSION: 180kv x-ray radiation was far more damaging to jaws than cobalt-60 radiation.The dental extraction is an important factor inducint the development of ORNJ.
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Affiliation(s)
- X T Xie
- Department of Oral and Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University. Shanghai 200011, Chain
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Xie XT, Qiu WL, Yuan WH, Wang ZH. Experimental study of radiation effect on the mandibular microvasculature of the guinea pig. Chin J Dent Res 1998; 1:46-51. [PMID: 10557194] [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: 02/14/2023]
Abstract
OBJECTIVE This experimental study was performed to explore the intraosseous microvascular alterations in the irradiated mandible and to increase understanding of the pathogenesis of osteoradionecrosis. METHODS One hundred twenty-eight guinea pigs were grouped according to different radiation sources and dosages. Fractioned radiation was delivered to the right mandibles. Dental extractions were conducted at 1, 3, and 5 months respectively, after radiation. One month later, the animals were examined by means of gross observation, histopathology, and microvascular corrosion castings. RESULTS Histologic evaluation showed bone absorption within 2 months following radiation. Four months later, the number of osteocytes decreased and pyknosis and empty lacunae were commonly seen. The casting specimens revealed under scanning electron microscopy that capillary disconnection and obliteration with subsequent vein shrinkage aggravated over time. In the nonhealing dental extraction site, a large-scale vascular network defect presented with focal capillary proliferation around. CONCLUSIONS The capillary is the part most vulnerable to the damage caused by radiation in the vascular system of the mandible. On the basis of "hypovascular, hypoxic, hypocellular" structure, local microcirculation failure induced by the trauma-repairing process leads to occurrence of osteoradionecrosis of jaws.
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Affiliation(s)
- X T Xie
- Department of Oral and Maxillofacial Surgery, Shanghai Ninth Hospital, Shanghai Second Medical University, P. R. China
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Yu CQ, Qiu WL. [Oral manifestation and diagnosis of Sjogren's syndrome]. Shanghai Kou Qiang Yi Xue 1998; 7:117-20. [PMID: 15071685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- C Q Yu
- Departmentof Oral & Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University.Shanghai 200011,China
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Guo W, Qiu WL, Zhang ZY. [Research advances in gene therapy of head and neck neoplasms: Literature review]. Shanghai Kou Qiang Yi Xue 1998; 7:121-2. [PMID: 15071686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- W Guo
- Departmentof Oral & Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University.Shanghai 200011,China
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Lu XF, Qiu WL, Tang YS, Yuan WH. [The advanced studies on surgical treatment about the patients of TMJ ankylosis and OSAS]. Shanghai Kou Qiang Yi Xue 1998; 7:12-6. [PMID: 15071693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE: Through the treatment on the 10 patients suffered TMJ ankylosis and OSAS,by means of the TMJ reconstruction combining orthognathic surgery,it is demonstrated that the treatment on the patients must include relieve the TMJ anklosis,correct the maxillofacial deformitis and specially enlarge upper airway space.
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Affiliation(s)
- X F Lu
- Department Of Oral Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University. Shanghai 200011,China
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