1.Expression and clinical significance of insulin-like growth factor binding protein 5 in gastric adenocarcinoma
Huiyan LUO ; Wei WANG ; Jihong FENG ; Zhibin LUO
Chinese Journal of Clinical Oncology 2014;(16):1031-1035
Objective: To investigate the expression and prognostic significance of insulin-like growth factor binding protein 5 (IGFBP5) in gastric adenocarcinoma (GAC). Methods:IGFBP5 expression in tissue samples from 236 GAC patients was analyzed us-ing immunohistochemical methods. These patients had undergone surgical resection between 20003 and 2006 in Sun Yat-Sen Universi-ty Cancer Center. The relationship between IGFBP5 expression and clinicopathological factors in the 236 GAC patients was analyzed using Pearson correlation analysis. The significance of IGFBP5 in predicting the survival status of these patients was analyzed using Ka-plan-Meier survival analysis and Cox's proportional hazards regression model. Results:Immunohistochemical staining data indicated that IGFBP5 expression was significantly decreased in 159 of the total GAC cases (67.4%). Of the 62 cases with well-and moderately differentiated GAC, 31 (50%) exhibited reduced IGFBP5 expression. Of the 174 cases with poorly differentiated GAC, 128 showed re-duced IGFBP5 expression. Reduced IGFBP5 expression was also observed in female patients and in patients with tumors over 5 cm in size or with poorly differentiated tumors (P<0.05). The reduced expression of IGFBP5 was common in the tumors that were staged as T3+4a/b andⅢ/Ⅳ(P<0.05). Kaplan-Meier survival analysis revealed that the reduced expression of IGFBP5 was associated with poor prognosis in GAC patients (P<0.001). Cox regression analysis identified IGFBP5 expression as an independent prognostic factor for the overall survival of these cancer patients (HR=1.897, P=0.029). Conclusion: IGFBP5 expression is reduced in GAC tissues, and IGFBP5 independently predicts an unfavorable prognosis in GAC patients.
2.Clinical characteristics and outcomes of wake-up stroke
Lizhi WANG ; Weiliang LUO ; Xuanwen LUO ; Minrui CHEN ; Wei ZENG
International Journal of Cerebrovascular Diseases 2021;29(4):241-245
Objective:To investigate the clinical characteristics and outcomes in patients with wake-up stroke.Methods:From January 2019 to December 2019, consecutive patients with acute ischemic stroke admitted to the Department of Neurology, Huizhou Municipal Central Hospital were enrolled retrospectively. The modified Rankin Scale was used to evaluate the outcome of patients at 90 d after the onset. 0 to 2 was defined as a good outcome, and >2 was defined as a poor outcome. Multivariate logistic regression analysis was used to determine the factors affecting the poor outcome of patients with wake-up stroke. Results:A total of 356 patients with acute ischemic stroke were enrolled, including 97 (27.2%) wake-up stroke, and 259 (72.8%) non-wake-up stroke. The National Institutes of Health Stroke Scale (NIHSS) score at admission and the proportion of patients with atrial fibrillation, moderate to severe stroke and cardiogenic embolism in the wake-up stroke group were significantly higher than those of the non-wake-up stroke group, and the proportion of patients with small artery occlusion was significantly lower than that in the non-wake-up stroke group (all P<0.05). Moreover, the proportion of patients with poor outcome in the wake-up stroke group was significantly higher than that in the non-wake-up stroke group (36.1% vs. 24.7%; χ2=4.546, P=0.033). In the wake-up stroke group, 62 patients (63.9%) had a good outcome, and 35 (36.1%) had a poor outcome. The NIHSS score at admission and the proportion of patients with atrial fibrillation and moderate to severe stroke in the subgroup with poor outcome were significantly higher than those in the subgroup with good outcome, and the proportion of patients receiving intravenous thrombolysis and mechanical thrombectomy was significantly lower than those in the good outcome subgroup (all P<0.05). Multivariate logistic regression analysis showed that moderate to severe stroke (odds ratio [ OR] 6.674, 95% confidence interval [ CI] 2.223-20.034; P=0.001) was independently associated with the poor outcome in patients with wake-up stroke, while intravenous thrombolysis ( OR 0.102, 95% CI 0.017-0.630; P=0.014) and endovascular mechanical thrombectomy ( OR 0.108, 95% CI 0.023-0.506; P=0.005) were independently associated with the good outcome of patients with wake-up stroke. Conclusions:In patients with wake-up stroke, the proportion of cardioembolism is higher, the clinical symptoms are more serious and the incidence of poor outcome is higher. The severity of stroke at admission is associated with poor short-term outcome, and intravenous thrombolysis and endovascular mechanical thrombectomy can improve the outcome in patients with wake-up stroke.
3.Eatimation of effective doses from a dental cone beam computed tomographic scanner
Wei LUO ; Yue ZHAO ; Jianchao WANG
Chinese Journal of Radiological Medicine and Protection 2017;37(3):222-225
Objective To calculate effective dose based on the dose-area Product (DAP) measured in dental cone beam computed tomograhic (CBCT) scanning and using a conversion coefficient.Methods The method of the DAP was used to calculate the effective dose from KODAK 9500 dental CBCT scanner with fields of view (FOV) of 16 cm×15 cm and 12 cmu×8 cm.The DAP-values (mGy · cm2) were measured using a transmission ionization chamber connected to an electrometer (Doseguard 100,RTI Electronics AB,Sweden) and the chamber was placed directly on the exit of the X-ray tube.All measurements were repeated three times and averaged on each FOV data.The conversion coefficient of 0.080 μSv/mGy · cm2 was used to estimate the effective dose on the basis of DAP values,which was quoted from a literature.Results DAP values were found between the two FAOs to vary from 512 to 1 083 mGy · cm2,and the effective doses calculated with 0.080 μSv/mGy · cm2were 41 to 87 μSv.The effective doses given in this paper was lower than those reported in other literatures.Conclusions DAP measurement was found to be well defined and easy-to-use method of determining effective dose for some CBCT Units.However,determination of specific conversion coefficient in the CBCT must be further developed.
4.Research progress on association of LRP6 gene polymorphism and metabolic syndrome
Zhenmin WANG ; Jianquan LUO ; Wei ZHANG
Chinese Pharmacological Bulletin 2016;32(5):603-606,607
Metabolic syndrome is the fundamental factor in the pathogenesis of a variety of diseases, and it has not yet been fully understood due to its complicated mechanism. Multiple re-searches have implicated that Wnt/β-catenin signaling pathway may have a significant effect on the formation and development of metabolic syndrome. LRP6 is an important co-receptor of Wnt/β-catenin signaling pathway ,and there are some researches im-plicating the correlation between LRP6 and metabolic syndrome. The in-depth research on the gene polymorphism and its modula-tion mechanism can provide new ideas and directions for meta-bolic syndrome therapy.
5.Research progress of radiation-induced xerostomia in nasopharyngeal carcinoma
Sumei LUO ; Jilou WEI ; Ruoyu WANG
Journal of International Oncology 2014;41(4):261-264
Radiation-induced xerostomia is the common radiotherapy-related complication of nasopharyngeal cancer and other head and neck cancers.The cause is that the radioactive rays damage salivary gland acini,ducts,blood vessels and nerves at different levels,resulting in dry mouth,mucositis,sialadenitis,and even dysphagia,trismus and other symptoms.In addition,radiation-induced xerostomia has a close relation to the radiation effect on the genes.Reasonable application of cytoprotective agents and sialagogues is the main treatment means.Chinese medicine also plays a crucial role in the prevention and treatment of radiation-induced xerostomia in recent years.
6.Effects of dl-3n-butyphthalide on serum C-reactive protein level in patients with acute cerebral infarction
Yanli LUO ; Ruiling WANG ; Juanhong WEI
Chinese Journal of Practical Internal Medicine 2006;0(13):-
Objective To study the influence of dl-3n-butyphthalide on serum C-reactive protein(CRP)level in patients with acute cerebral infarction.Methods A total of 68 patients with acute cerebral infarction were chosen and divided into two groups randomly.Both the groups were treated with normal method and the treatment group was given dl-3n-butyphthalide 200 mg,tid.Serum CRP levels in the two groups were measured by immunoturbidimetry within 24 h after final diagnosis and at two weeks after treatment.Results Serum CRP levels all increased in the patients.After treatment for two weeks the level decreased obviously in treatment group.The difference was significant compared with control group.Conclusion The dl-3n-butyphthalide can markedly decrease the serum CRP level in acute cerebral infarction patients and has important significance for the pathogenetic condition change and prognosis of cerebral infarction.
7.Examples of Medical Cases of TCM Treatment of Syndrome Differentiation for Subacute Thyroiditis
Yannan LUO ; Dianhong WANG ; Wei LI
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(10):111-112
Subacute thyroiditis is a common type of thyroid pain disease. Severe symptoms include fever and severe pains in the thyroid gland. Throughout many years of clinical experience, the author found that TCM treatment for subacute thyroiditis is effective, with less adverse reactions. This article reported two cases of subacute thyroiditis treated recently.
8.High-molecular-weight nerve growth factor with bletilla colloid as a carrier in the facilitation of wound healing
Jianzhong LIAO ; Wei WANG ; Yongxiang LUO
Chinese Journal of Tissue Engineering Research 2006;10(17):179-181,封三
BACKGROUND:. Growth factor starts a new epoch of the research and application of wound healing, and the effect of the combination of Chinese tradition medicine and biomedicine in wound healing is still in the discussion.OBJECTIVE: To observe the effect in promoting wound healing of rats with bletilla colloid, a Chinese herbal medicine, as a carrier of exogenous high molecular weight nerve growth factor (HMW-NGF).DESIGN: The single sample observation was adopted in the identification of activities of HMW-NGF; The randomized control experiment with animal as subjects was adopted in the observation of the effect of the HMW-NGF mixed with the bletilla colloid as a carrier in promoting wound healing.SETTING: Department of Orthopaedics, Shenzhen Buji People's Hospital,and Department of Orthopaedics, Tongji Hospital Affiliated to Huazhong University of Science and Technology.MATERIALS: Forty SD rats aged 90-120 days of either gender were employed, with the body mass of 220-280 g; The freeze dried preparation of cattle seminal fluid with HMW-NGF with 1mg each.METHODS: From September 2001 to December 2004, the experiment was carried out in the Department of Orthopaedics in Shenzhen Buji People's Hospital and Central Laboratory of Department of Orthopaedics in Tongji Hospital Affiliated to Huazhong University of Science and Technolcolloid, HMW-NGF, HMW-NGF+ bletilla colloid were added into the serum-free medium (SFM), and the influences of them on the dorsal root lected and divided into 4 groups with 10 rats in each group. The rats of normal control group had no medicine on the wound. In the bletilla colloid group, the HMW-NGF group and the HMW-NGF+bletilla colloid group, incision size 2 cm was made at the back of each rat, and bletilla colloid,HMW-NGF, HMW-NGF+ bletilla colloid were applied respectively on the wound, once per day. The wound area was measured at day 3 and 10 after treatment, and the wound area was calculated by the image analysator. The category and the quantity of the emigrated cells were observed with light microscope, and the healing time of the wound was observed.tion under light microscope.the DRG of chick embryo was cultured, the reaction of evection growth around the ganglion in the HMW-NGF, HMW-NGF+ bletilla colloid with the dilution desity of 1:106-1: 108 was most significant, which was not seen in healing with HMW-NGF + bletilla colloid was significantly increased as compared with that in normal control group, the bletilla colloid group and the The healing time of the wound of the normal control group, the bletilla colloid group and the HMW-NGF group and the HMW-NGF+ bletilla colloid group were (19.5±0.7), (17.3±0.6), ( 16.6±0.7 )and ( 14.9±0.4 ) days respecvation of cut sheets 3 days after treatment: The quantity of polymorphonuclear leucocytes, histoleueocyteand fibroblast in the bletilla colloid group,the HMW-NGF group and the HMW-NGF+ bletilla colloid group were significantly larger than that in the normal control group, and the micrangium could be seen in the HMW-NGF group and the HMW-NGF+ bletilla colloid group. The observation of cut sheets 10 days after treatment: The granulation tissue in the HMW-NGF group and the HMW-NGF+ bletilla colloid group was compacter and had more micrangium as compared with the normal control group and the bletilla colloid group.CONCLUSION: HMW-NGF+ bletilla colloid has significant effect on promoting the healing of the wound at the earlier and later period, and the effect is better than that of bletilla colloid or HMW-NGF.
10.The expression of CD4~+ CD25~+ T cells in the patients with systemic lupus erythematosus
Li LUO ; Guochun WANG ; Li WEI
Chinese Journal of Immunology 1985;0(06):-
Objective:To investigate the expressions of CD4+ CD25+ T cells and IL-10 in the peripheral blood of patients with systemic lupus erythematosus(SLE) and their clinical significance.Methods:Thirty SLE patients(seventeen active and thirteen remissive) and twenty normal controls were enrolled in the study. Flow-cytometric assay was employed for detection of CD4+ CD25+ T cells,and double antibody sandwich ELISA was applied to detect IL-10 in sera from SLE patients and normal controls.Results:The levels of CD4+ T cells in active and remissive SLE were significant lower than normal controls; the positive rate of CD4+ CD25+ T cells in both active and remissive SLE was higher than that in normal controls; the levels of IL-10 in active stage of SLE were significant higher than in remissive stage of SLE or in normal controls. No correlation was found among the levels of CD4+ CD25+ T cells or IL-10 in SLE with SLEDAI scores, anti-DNA and C3 level.Conclusion:CD4+ CD25+ T cells in the peripheral blood of patients with SLE are the marker for activation of T-cells, and aberrant IL-10 production was related with onset of SLE.