1.Study on targets for several traditional medical formula in innate immunity against M.tuberculosis
Lixin WANG ; Dan LIU ; Yi WANG
Chinese Journal of Immunology 2000;0(09):-
Objective:To explore the potential targets for Traditional Chinese Medical Formula against tuberculosis infection.Methods:U937 cells were incubated with the drug-serum prepared with Clehnia root Ophioponis Decoction(COD),Lily Metal-Consolidating Decoction (LMCD) and Radix Ginseng Gecko Powder(RGGP) for 24 hours.The mRNA and protein level of CR1,CR3,CD14,CD43,TLR2 and TLR4 expressed in macrophages respectively were then measured by RT-PCR and FACS.The phagocytic and killing activity of the U937 cells interfered with the drug-serum for 24 h were then detected after BCG stimulation.Meanwhile,secretion of IL-10,IL-12 and the activity of iNOS in the macrophages were detected by ELISA and biochemistry method in each group.Results:The drug-serum prepared with COD,LMCD and RGGP had different regulatory effects on the expression of PRRs and the production of IL-10 and IL-12 in the macrophages,and could enhance the phagocytosis percentage and phagocytic index(P
2.Laryngeal interarytenoid neurilemmoma excised via microlaryngeal endoscopy: two case reports.
Yi SHEN ; Lixin CHENG ; Ming TANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(23):2091-2092
Laryngeal interarytenoid neurilemmomas (LIN) is a benign encapsulated tumor originating from the schwann cells lining nerve fibers. Even though LINs are extremely rare in incidence, they could present with potential threat to the airway and thus requiring prompt diagnosis and treatment. Here, we report two cases of LINs. Both patients underwent excision of the tumor via microlaryngeal endoscopic procedures and recovered well postoperatively without complications. No recurrence was observed postoperatively on routine follow-up after 14 months.
Endoscopy
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Humans
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Larynx
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pathology
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surgery
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Neurilemmoma
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surgery
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Otorhinolaryngologic Surgical Procedures
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Postoperative Period
3.Integrative medicine in the treatment of active tuberculosis clinical observation
Yi DING ; Lixin QIAO ; Yizhong LU
Chinese Traditional Patent Medicine 1992;0(09):-
AIM: To investigate the effect of combination of traditional Chinese and western medicine treatment on active tuberculosis patients and the impact on peripheral blood T-lymphocyte subsets. METHODS: 133 cases of active pulmonary tuberculosis patients were divided into two groups.The clinical effects of two groups were compared and Tlymphocyte subsets were detected. RESULTS: The total effective rate was 95.8%,its efficacy was superior to the control group(P
4.Optimization of Preparation for Venlafaxine Hydrochloride W/O Emulsion by Central Composite Design-Response Surface Methodology
Keke WANG ; Lixin YI ; Mingyan JIANG
Herald of Medicine 2015;(5):644-648
Objective To optimize the formulations of venlafaxine hydrochloride ( VH ) emulsions by using central composite design-response surface methodology. Methods The effect of amounts of Arlacel P135, VH, PEG-400, and NaCl on the emulsion viscosity, centrifugation breakage, and mean diameter was systemically investigated, respectively. The desirable formulation that combining these three response variables was constructed. Linear equations and a second-order polynomial equation were fitted to the data, and the outcome equation was used to predict the responses in the optimal region. Results There was a quantitative relationship between 4 factors and 3 evaluation indexes and evaluation the “desirability” . The optimal formulation of the VH emulsion were as follows:taking 0. 48 g of Arlacel P135, 0. 40 g of VH, 0. 26 g of PEG-400, and 0. 025 g of NaCl. The experimental values of the response variables were highly closed to the predict values. Conclusion The model presents good prediction and can be used to optimize the preparation of VH emulsion, which obtaining stable W/O emulsion.
5.Ethanol embolization of auricular arteriovenous malformations
Xindong FAN ; Hongying YI ; Lianzhou ZHENG ; Lixin SU ; Jiawei ZHENG
Journal of Interventional Radiology 2009;18(11):812-815
Objective To present the authors' initial experience of treating auricular arteriovenous malformations (AVMs) with ethanol embolization and to assess the clinical effectiveness of this therapeutic method. Methods Twenty-two patients with AVMs were enrolled in this study. Through local puncturing or super-selective catheterization the absolute ethanol, or diluted alcohol (based on the pattern of the AVMs), was manually injected into the abnormal vascular plexus of the auricular lesion. The clinical results were estimated with physical examination or angiography at intervals of 3 ~ 4 month, and telephone questionnaire was made at monthly intervals for all patients. Results Thirty-eight ethanol embolization procedures were performed, the amount of ethanol used during the procedure ranged from 4 ml to 65 ml. After the treatment the clinical symptoms were improved, which were manifested as healing of the ulceration, stop of bleeding, disappearing or alleviation of tinnitus. Angiographic examination showed that the abnormal vascular lesion was completely vanished in 9 cases, decreased by 50% -75% in 8 cases and decreased less than 50% in remaining 5 cases. The common complications included irreversible local necrosis and vesiculation. Conclusion For the treatment of auricular AVMs ethanol embolization is an effective and safe method, which might become the therapy of first choice.
6.Role of insulin-like growth factor binding protein 7 in the process of hepatic fibrosis promoted by activated hepatic stellate cells
Qianqian ZHANG ; Lixin LIU ; Xiaohong GUO ; Yi LIU ; Dongmei ZHANG
Chinese Journal of Digestive Surgery 2009;8(6):457-459
Objective To investigate the regulatory effect of insulin-like growth factor binding protein 7 (IGFBP7) on the synthesis and secretion of fibronection and the inhibiting effect of anti-IGFBP7 antibody on apop-tosis of hepatic stellate cell-T6 (HSC-T6). Methods HSC-T6 cultured in vitro were divided into blank control group, IGFBP7 20 μg/L group, anti-IGFBP7 antibody 0.25 mg/L group, anti-IGFBP7 antibody 0.50 mg/L group and anti-IGFBP7 antibody 1.00 mg/L group. HSC-T6 were treated by IGFBP7 for 24 hours, then the expression of fibronectin was detected by Western blot and the content of fibronectin by ELISA. After incubating HSC-T6 with anti-IGFBP7 antibody for 14 hours, the inhibiting effect of anti-IGFBP7 antibody on HST-T6 was evaluated by MTT assay, and the effect of anti-IGFBP7 on the apoptosis of HST-T6 was detected by flow cytometry. All data were analyzed by one-way ANOVA, t test and SNK-q test. Results The content and expression of fibronection in IGFBP7 20 mg/L group were significantly higher than those in the blank control group (t = 22.06, 7.43, P < 0.05). Anti-IGFBP7 antibody had an obvious inhibiting effect on the proliferation of HSC-T6 (F=14. 70, P < 0.05), and it also enhanced the ratio of apoptosis of HSC-T6 (F = 63.79, P < 0.05). Conclusions IGFBP7 can increase the synthesis and secretion of fibronectin which is the principal component of extracellular matrix. Anti-IGFBP7 antibody can inhibit the proliferation and promote the apoptosis of HSC-T6.
7.The detection of vascular endothelial growth factor and Periostin in the early diagnosis of diabetic retinopathy
Jifeng YI ; Yuxin XU ; Yongmei LIU ; Qingping JING ; Lixin YANG
Chinese Journal of Postgraduates of Medicine 2013;(6):15-17
Objective To detect the expressions of vascular endothelial growth factor(VEGF) and Periostin in patients with diabetic retinopathy (DR),and to explore its chnical significance.Methods A total of 52 patients with DR (DR group),36 non-DR diabetic patients (non-DR group) and 30 healthy person (normal control group) were enrolled.The 52 cases of DR patients were divided into non-proliferative DR (PDR) group (non-PDR group,24 cases) and PDR group (28 cases).The expressions of serum VEGF and Periostin were detected with enzyme-linked immunosorbent assay analysis.Results The serum expressions of VEGF and Periostin were significantly higher in non-DR group and DR group than those in normal control group [(122.63 ±28.74),(163.58 ±42.37) mg/L vs.(91.53 ± 19.58) mg/L,(110.15 ±32.62),(146.51 ± 41.74) mg/L vs.(82.26 ± 21.17) mg/L,P < 0.05 or < 0.01].The serum expressions of VEGF and Periostin were significantly higher in DR group than those in non-DR group (P <0.05).The serum expressions of VEGF and Periostin were significantly higher in PDR group than those in non-PDR group [(174.15 ±47.31) mg/L vs.(147.66 ±38.25) mag/L,(160.31 ±46.43) mg/L vs.(132.14 ±35.62)mg/L,P < 0.05].The serum expression of VEGF was positively related with Periostin (r =0.415,P < 0.01).Conclusion The high-expressions of VEGF and Periostin are found in DR patients,and which maybe play a key role in the early diagnosis and assessment the progression of DR patients.
8.Bacterial distribution and resistance in orthopedic patients with wound infections in 2014
Tong WANG ; Lixin WANG ; Xue BAI ; Yi WANG
International Journal of Laboratory Medicine 2015;(20):2989-2991
Objective To investigate the bacterial distribution and resistance in orthopedic patients with wound infections in the hospital in 2014 .Methods The bacteria identification and the antimicrobial susceptibility test were conducted by VITEK‐2 compact automatic system .Results A total of 864 pathogenic strains were collected ,with Gram‐positive bacteria 451 strains (52 .2% ) , Gram‐negative bacteria 398 strains(46 .1% ) .The first major pathogens of Gram‐positive bacteria were Staphylococcus aureus(n=233 ,27% );The top three pathogens of Gram‐negative bacteria were Pseudomonas aeruginosa(n=94 ,10 .9% ) ,Enterobacter cloacae (n=63 ,7 .3% ) ,Acinetobacter baumannii(n=58 ,6 .7% ) .All the Staphylococcus aureus isolates were susceptible to vancomycin , tigecycline ,nitrofuratoin ,quinupristin/dalfopristin ,linezolid .The resistant rates of Acinetobacter baumannii were higher than 50%to multiple antibiotics .Conclusion Staphylococcus aureus were predominant pathogens in orthopedic patients with wound infec‐tions in our hospital .Meantime ,Pseudomonas aeruginosa and Enterobacter cloacae were the prime pathogens in the Gram‐negative bacteria .The drug‐resistance situation is still severe ,and more effective measures should be taken to control the dissemination and growth of resistant strains .
9.Baicalin promotes the expression of NKG2D ligands on BCG-infected macrophages and enhances the cytotoxic activity of NK cells
Yunhua CHE ; Lixin WANG ; Yi WANG ; Dan LIU
Chinese Journal of Microbiology and Immunology 2016;36(9):647-653
Objective To investigate the effects of BCG ( Bacillus Calmette-Guerin) infection on NKG2D (natural killer group 2, member D) ligands (MICA, MICB, ULBP1 and ULBP2) expressed on macrophages and to further analyze the effects of baicalin on these NKG2D ligands and the cytotoxic activity of NK cells. Methods PMA ( phorbol 12-myristate 13-acetate) was used to induce the differentiation of THP-1 cells into macrophages. The THP-1-derived macrophages were infected with BCG and then treated with baicalin. The expression of MICA, MICB, ULBP1 and ULBP2 at mRNA and protein levels were meas-ured by real-time PCR and Western blot assay. The BCG-infected macrophages were co-cultured with NK cells derived from human PBMC for 4 h. Real-Time Cell Analyzer ( RTCA DP) was used to evaluate the cy-totoxic activity of NK cells. Results The expression of MICA, MICB, ULBP1 and ULBP2 at mRNA level and the expression of MICA and ULBP1 at protein level were upregulated after infecting the macrophages with BCG. The expression of MICA and ULBP1 at mRNA and protein levels and the killing activity of NK cells were significantly enhanced after treating the BCG-infected macrophages with baicalin (1 mg/L) for 72 h. Conclusion BCG infection could induce the expression of NKG2D ligands on human macrophages, but could not effectively active the NK cells. Baicalin could enhance the cytotoxic activity of NK cells by further up-regulating the expression of NKG2D ligands on BCG-infected macrophages.
10.Relationship between the expression of Phosphatase and tension homolog deleted on chromosome ten and Alpha fetoprotein in hepatocellular carcinoma
Lixin FAN ; Guangwei SUN ; Yong ZHANG ; Zhidong WANG ; Yi ZHOU ; Hailong CHEN
Chinese Journal of Postgraduates of Medicine 2015;(11):813-816
Objective To investigate the expression and relationship between Phosphatase and tension homolog deleted on chromosome ten (PTEN) and Alpha fetoprotein(AFP) in hepatocellular carcinoma. Methods PTEN and AFP expression was examined by immunohistochemical method. Results PTEN expression was significantly weaker in patients with tumor less than 5.0 cm and patients with CLIP score≥1 (P<0.05). The expression of PTEN and AFP was negatively correlated ( Rs=-0.422, P=0.043), serum AFP and tissue expression of AFP was positively correlated (Rs=0.380, P=0.042), but for individual expression was not consistent. Conclusions PTEN and AFP is respectively negative and positive adjustment factor of PI3K/AKT pathway. Tissue expression of AFP may be more significant, and may become the new targets for the treatment of hepatocellular carcinoma.