1.The Fluorescent Marker Development Based on MegaBACE 1000 DNA Sequencing System
China Biotechnology 2006;0(12):-
The MegaBACETM 1000 DNA Sequencing System was made by Amersham Pharmacia,which is a high throughput fluorescence-based DNA sequencer that can be used for DNA sequencing and genetic analysis etc.But the markers(ET550-R Size Standards)produced by this corporation which are used for genetic analysis in this instrument are very expensive.In order to cut the cost,a set of markers were developed and after authentication,that can be used in the MegaBACE 1000 DNA sequencer.Using these markers and our own recognition software,an improved,high throughput AFLP work protocol based on MegaBACETM 1000 were constructed.
2.Resection of esophageal carcinoma through left thoracic and neck approach (A report of 2058 cases)
Ruisen YANG ; Guofan WANG ; Baijiang ZHANG
Chinese Journal of Thoracic and Cardiovascular Surgery 2003;0(06):-
Objective To discuss the indication, the prevention and treatment of complications of the esophagectomy through left thoracic and neck approach. Methods 2?058 cases of esophageal carcinoma were analyzed retrospectively. Results The success rate of this procedure was 98.40%, and 33 cases died postoperatively, the mortality was 1.60%(33/2?058). Lymph node metastases were presenting 895 cases. The gross rate of lymph node metastasis was 43.49%(895/2?058), the rates of 1ymph nodes metastasis in neck, chest and abdomen were 5.12%(107/2?058), 42.50%(875/2?058) and 21.19%(436/2?058), respective1y. The occurrence rate of residual carcinoma was 1.51%(31/2?058). The complication rate was 15.74%(324/2?058). 1?870 cases were followed-up (90.86%). The overall 3-, 5-year survival rates were 61.22%(895/1?462) and 36.45%(384/1?053), respectively. Conclusion The advantages of this approach were relatively radical resection, 1ow incidence of residual carcinoma, less severe complications.
3.Analysis of blood Th17 cell and IL-17 from different regions of body in patients with acute coronary syndrome
Yulin CHEN ; Ying JIAN ; Minjie LIU ; Fang ZHANG ; Weifeng YANG ; Zhao XU ; Guofan CHEN
Chinese Journal of Emergency Medicine 2016;25(1):83-87
Objective To investigate the differences and significance of blood levels of T helper 17 (Th17) cell and interleukin17 (IL-17) between peripheral and culprit vessels in patients with acute coronary syndrome.Methods A total of 76 patients recruited in 2012 were divided into three groups according to the coronary angiography and clinical manifestations:acute coronary syndrome,stable angina and control groups.The blood samples were taken from cubital vein and culprit coronary artery after coronary angiography.The percentage of Th17s among CD4+ T cells was detected by flow cytometric analysis and the IL-t7 levels were measured by enzyme-linked immunosorbent assay.Results There was no significant difference in the percentages of Th17 cells between peripheral blood and culprit artery blood [(3.18 ± 0.29) % vs.(3.17 ±0.30)%,(P =0.919)];but the perecentages of Th17 in peripheral blood were found to be significantly higher in patients with acute coronary syndrome (3.18 ± 0.29)% than those with stable angina (1.32 ± 0.31) % and those without coronary heart disease (1.28 ± 0.33) %,(P < 0.01).There was no significant difference in the level of IL-17 between peripheral blood and culprit artery blood [(81.23 ± 18.63) vs.(82.37 ±20.51) pg/mL,P =0.573];but the level of IL-17 in peripheral blood was also significantly higher in patients with acute coronary syndrome than those with stable angina and those without coronary heart disease [(81.23 ± 18.63) vs.(25.96 ± 14.58) pg/mL or (23.75 ± 13.64) pg/mL,P <0.01].Conclution There were no significant differences in percentage of Th17 cell among CD4 + T cells and levels of IL-17 in blood between peripheral and culprit vessels in patients with acute coronary syndrome.The percentage of Th17 among CD4 + T cells and the levels of IL-17 in blood increase in patients with acute coronary syndrome suggesting a potential role of Th17 and IL-17 in the development and instability of the atheroma.
4.Clinical study of modified Shishi Niubangzi Decoction combined with strengthening tendons-waist exercise on lumbar disc herniation
Jinshan BAI ; Zhiyong XIE ; Xuesong LU ; Zhen ZHANG ; Na LI ; Xibin REN ; Guofan JIAN ; Hongsheng ZHAN
International Journal of Traditional Chinese Medicine 2023;45(4):421-425
Objective:To observe the clinical effect of modified Shishi Niubangzi Decoction combined with strengthening muscle-waist exercise on lumbar disc herniation (LDH).Methods:Randomized controlled trial. A total of 60 patients with LDH admitted to the Pinggu Hospital, Beijing Traditional Chinese Medicine Hospital, were enrolled as the research objects between September 2020 and September 2021. According to the random number table, they were randomly divided into the treatment group and control group, 30 in each group. Both groups were given routine basic treatments (strengthening tendons-waist exercise and three-position six-step manipulation). On this basis, the treatment group was treated with modified Shishi Niubangzi Decoction, while the control group was treated with non-steroidal anti-inflammatory drugs (ibuprofen codeine sustained-release tablets). Both groups were treated for 4 weeks. The responsive rates, back pain intensity, leg pain and numbness by Visual Analogue Scale (VAS) and lumbar function by Oswestry Disability Index (ODI), and Japanese Orthopaedic Association (JOA) were compared between the two groups.Results:The response rate of treatment group was significantly higher than that of control group (93.3% vs. 73.3%; χ2=4.32, P=0.038). After treatment, scores of JOA (subjective symptoms, signs, activities of daily living) in the treatment group were significantly higher than those in the control group ( t=3.86, 2.71, 2.21, P<0.05). After treatment, scores of back pain (2.12±0.21 vs. 3.02±0.32, t=12.88), leg pain (2.04±0.64 vs. 2.64±0.66, t=3.58), lower limb numbness (1.75±0.24 vs. 2.41±0.70, t=4.89) in the treatment group were significantly lower than those in the control group ( P<0.01). At 1 week and 1 month after treatment, ODI scores in treatment group were significantly lower than those in control group ( t=10.22, 5.59; P<0.05). Conclusion:The modified Shishi Niubangzi Decoction combined with strengthening tendons-waist exercise can improve responsive rates, improve lumbar pain and function in LDH patients.
5.Progress on molecular markers of retinal ganglion cells death in glaucoma
Yue ZHU ; Qiuyang ZHANG ; Guofan CAO
International Eye Science 2025;25(5):781-786
Glaucoma is a neurodegenerative disorder primarily characterized by the degeneration of retinal ganglion cells(RGCs). This condition can arise from a complex interplay of multiple mechanisms, including elevated intraocular pressure(IOP), neurotrophic factor deprivation, immune-mediated responses, oxidative stress, and excitotoxicity. Due to the absence of significant clinical symptoms in its initial stages, individuals often remain unaware of the disease until they experience irreversible vision loss, highlighting the critical importance of early diagnosis. Current diagnostic methods predominantly focus on measuring elevated IOP, assessing characteristic visual field deficits, and examining fundoscopic changes in the optic disc. Unfortunately, these indicators typically manifest only after considerable optic nerve damage has already occurred. Consequently, the identification of biomarkers associated with RGCs loss is essential for enhancing the early diagnosis and management of glaucoma. This study aims to investigate the molecular mechanisms underlying RGCs degeneration and to determine the potential existence of biomarkers within these pathways. By identifying early alterations in these biomarkers, we hope to facilitate timely intervention strategies for glaucoma, ultimately reducing the risk of vision loss and improving the overall quality of life for affected individuals.