1.Metabolic syndrome and insulin resistance
Basic & Clinical Medicine 2006;0(01):-
The metabolic syndrome is a complex disorder of several metabolic abnormalities,which represents a risk factor of type 2 diabetes mellitus and cardiovascular diseases.Insulin resistance seems to play a significant role in pathoyenesis of metabolic syndrome.Many issues concerning definition,pathophysiology and optimal treatment of metabolic syndrome are reviewed in this article.
2.Development of scoliosis surgery
Orthopedic Journal of China 2006;0(03):-
Scoliosis surgery includes fusion and non-fusion techniques.Fusion technique includes posterior fusion technique and video-assisted anterior thoracoscopic fusion.Non-fusion technique is suitable for children patients with growing potential of the spine.It includes growing rod,vertical expandable prosthetic titanium rib(VEPTR),U-shape screw,and multi-vertebral wedged osteotomy(for severely rigid scoliosis).Short term outcome from these techniques has been encouraging,but medium and long term outcomes are still need investigation.
3. Preparation of sustained-release microspheres containing exenatide and their in vitro release
Academic Journal of Second Military Medical University 2011;32(7):772-775
Objective: To prepare exenatide-loaded poly (lactic-co-glycolicacid)(PLGA) microspheres and to evaluate their release behavior in vitro. Methods: Exenatide-loaded PLGA microspheres were prepared by W/O/O method using PLGA as vectors. An HPLC approach was established to determine the content and in vitro cumulative release. The physicochemical characteristics of microspheres, including the mean diameter, morphology, drug entrapment efficiency and loading efficiency, were evaluated. Results: The prepared microspheres were well-shaped, with a mean diameter of (51.2±1.97) μm. The drug loading was (4.50±0.13)% and the encapsulation efficiency was (96.5±2.68)%. The first day burst release was (13.19 ± 1.39)% and the in vitro 28-day-cumulative-release was (88.6 ± 0.73)%. Conclusion: The W/O/O method is stable, controllable, and repeatable for preparing exenatide-loaded microspheres using biodegradable polymers PLGA as the vector; the microspheres yield a one-month continuous release and have a bright future in treatment of diabetes mellitus.
4.The mechanism of NLRP3 inflammasome affecting vascular aging and the development of related drugs
Acta Pharmaceutica Sinica 2021;56(3):696-702
Nucleotide binding oligomerization domain (NOD)-like receptor protein 3, NLRP3) inflammasomes regulate the secretion of caspase-1, interleukin-18 (IL-18), IL-1
5.The regulatory role of E2F1 in prostate cancer
Ming-yi ZHANG ; Ming JI ; Xiao-guang CHEN
Acta Pharmaceutica Sinica 2021;56(3):654-660
E2F transcription factor 1 (E2F1) is a major member of the E2F transcription factor family and participates in a wide range of physiological regulatory processes, such as cell cycle, survival, apoptosis, and metabolism. It is proved that the activity of E2F1 is related to the G1/S phase regulation of the cell cycle dependent on tumor suppressor retinoblastoma protein (RB). Recent studies have shown that E2F1 is highly expressed in prostate cancer cells, manifested as an oncogene, and its expression level is closely related to the occurrence, development, and poor clinical prognosis of prostate cancer. Androgen receptor (AR) is the main driving factor for the growth and progression of prostate cancer, and the changes of AR pathway play a key role in the pathological progression of prostate cancer. This article provide a systematic and comprehensive summary on recently published articles to review the role of the E2F1 pathway in prostate cancer.
6.Peripheral blood mononuclear cells (PBMCs) from patients with systemic lupus erythematosus me-diate the adhesion of T lymphocytes to endothelial ceils
Chinese Journal of Dermatology 2009;42(7):470-472
Objective To observe whether peripheral blood mononuclear cells (PBMCs) from patients with active systemic lupus erythematosus (SLE) can induce the adhesion of T lymphocytes to endothelial cells. Methods Sera and PBMCs were obtained from patients with active SLE and normal human controls. PBMCs were cultivated and culture supematants were harvested. Human umbilical vein endothelial cells (HUVECs) were cultured in vitro with or without the presence of the sera or culture super-natants of PBMCs. Some cells were pretreated with the antibody to IL-17 before the treatment with the sera or supematants. After another 48-hour culture, RT-PCR and real-time PCR were used to detect the mRNA expressions of adhesion molecules, including intercellular adhesion moleeule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and E-cadherin in HUVECs, wound healing assay to estimate the motility of HUVECs. Additionally, T lymphocytes were added to HUVECs 48 hours after stimulation with the sera or supematants, the adhering of T lymphocytes to HUVECs was observed by microscopy. Results After stimulation with supematants of PBMCs from patients with active SLE, the mRNA expressions of ICAM-1, VCAM-1 and E-cadherin were significantly increased in HUVEC, while the increase could be inhibited by the antibody to IL-17. The elevation of adhesion molecule expression subsequently promoted the motility of HUVEC, mediated the adhesion of T lymphocytes to HUVEC, and the antibody to IL-17 could suppress the adhesion of T lymphocytes and motility of HUVEC. Conclusion The culture supematants of PBMCs from patients with active SLE can induce the expression of vascular cell adherin molecules and promote the adherin of T lymphocytes, which may in turn mediate the development of lupus vasculitis.
7.Changes of Serum Ferritin and Blood Lead Levels in Children with Attention Deficit Hyperactivity Disorder
Journal of Applied Clinical Pediatrics 2004;0(07):-
0.05).Conclusion Low iron stores contribute to ADHD.SF level must be evaluated and retrieved in subjects with ADHD,particularly in the subgroup of ADHD-I.
10.Advances in immunotherapy of gastric cancer
Yuanhao LV ; Ming JI ; Xiaoguang CHEN
Chinese Journal of Biochemical Pharmaceutics 2016;36(11):197-199
500 thousands people died from gastric cancer in China over 2015,shortage of clinical medicines and therapeutic methods is one of the reasons for the high mortality.Tumor immunotherapy is the hottest area of research over the past decade,whose success in hematological malignancies makes people raised their confidence to “cure” cancer.In recent years,gastric cancer immunotherapy research has made some achievements,while clinical outcomes still need improvement.In this paper, the progress of clinical research of common immunotherapeutic drugs and methods in several fields of gastric cancer research are reviewed to discuss the development prospects of immunotherapy for gastric cancer .