1.Construction and Effect Analysis of the Clinical Information System for Closed -loop Management of Medical Advices
Xichuan ZHENG ; Yu SUN ; Ting CHEN ; Yanfeng HU
Journal of Medical Informatics 2015;(10):30-33
Based on the clinical informatization construction of large comprehensive hospitals , as required by information -based closed-loop management of medical advices , the paper analyzes the objectives and contents of informatization constructization in the closed-loop management of medical advices in modern hospitals , introduces the application effects of closed -loop management of medi-cal advices , and points out that such a management mode is the basis for future development of smart health care .
2.The verification of industry standard for total IgE quantitative labelling immunoassay kit
Nan SUN ; Ting YU ; Yumei WANG ; Shangxian GAO
International Journal of Laboratory Medicine 2014;(18):2523-2524,2577
Objective To verify the industry standard for total IgE quantitative labelling immunoassay kit .Methods Different methods of kits were used and were verified in accordance with industry standard .Results The appearance ,limit of blank ,linearity , accuracy ,precision and stability could meet requirements ,while specificity of individual kits was just partly qualified .Conclusion The establishing of the industry standard for total IgE quantitative labelling immunoassay kit was reasonable ,which could help to standardized the experimental methods and technical requirements and promoted the improvement of quality ,and offer the basis for the admistration .
3.Comparative study of three biodegradable films for protein drug carrier
Ting XIA ; Shuyi LI ; Hongfan SUN ; Mei YU
International Journal of Biomedical Engineering 2014;37(6):332-336
Objective To prepare three kinds of biodegradable film materials used for protein drug carrier,and compare their degradation and drug release behavior.Methods Three different biodegradable and controlled release films,gelatin,chitosan oligosaccharides and crosslinked chitosan oligosaccharides films were prepared.Protein release behavior was determined by the Bradford.At the same time,degradation rate and swelling rate were tested,and the biocompatibility of film was investigated by MTT assay.Results The release time of crosslinked chitosan oligosaccharides film was 168 h,which was longer than that of chitosan oligosaccharides film,and different in different solution.The degradation rate and the swelling rate of crosslinked chitosan oligosaccharides was 60% (360 h) and 110.45%,respectively,while the chitosan oligosaccharides membrane was 80% (360 h) and 113.03%.The MTI assay revealed that the crosslinked chitosan oligosaccharides film had better biocompatibility.Conclusions By comparing different properties,the crosslinked chitosan oligosaccharides film is the best choice for protein drug carrier.
4.Application of external application of fermented flour in parturient with engorgement and gas pains of breast
Chinese Journal of Modern Nursing 2012;18(6):649-651
Objective To evaluate the effect of external application of fermented flour on postpartum patients with engorgement and gas pains of breasts.Methods Totals of 109 postpartum cases with engorgement and gas pains of breasts in experimental group received external application using fermented flour,while 123 cases in control group received massage (clinical routine),then pain relieve,caring time,acceptable degree,breasts hardness and unobstructed degree of mammary gland during two groups were observed and compared.Results During intervention,in experimental group 33.02% patients felt pain significantly relieved and 27.52% felt pain relieved,onlyl2.19% patients felt pain relieved and 58.54% patients felt pain aggravated in control group,and the difference was statistically significant ( u =10.317,P < 0.01 ).After intervention,81.65% patients felt pain significantly relieved and 13.76% felt pain relieved in experimental group,and 18.70% patients felt pain significantly relieved,50.41% patients felt pain relieved and16.26% patients felt pain aggravated in control group,and the difference was statistically significant( u=9.356,P <0.01 ).The average time of nursing operation in experimental group was ( 28.4 ± 4.1 ) min significantly shorter than (98.3 ± 11.2 )min in control group ( t =8.069,P < 0.01 ).There was no significant difference on the breasts hardness improvement(P > 0.05). In experimental group 79.82% patients' mammary gland completely unobstructed,18.35% patients less unobstructed and 1.83% patients obstructed,while that in control respectively was 47.97%,35.77%,16.26%,and the difference was statistically significant ( u =5.258,P < 0.01 ).Conclusions External application of fermented flour has many advantages such as relieve pain well,unblock mammary gland,save the caring time and easier be accepted and so on.So,it is a favorable nursing care method for postpartum patients with engorgement and gas pains of breasts.
6.Significance of PLSCR1 in Matrine Induced Differentiation of ATRA Resistant APL Cells.
Di-jiong WU ; Ting-ting LIU ; Qi-hao ZHOU ; Jie SUN ; Ke-ding SHAO ; Bao-dong YE ; Yu-hong ZHOU
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(11):1345-1350
OBJECTIVETo observe the expression of phospholipid scramblase 1 (PLSCR1) in matrine (MAT) induced differentiation of all-trans retinoic acid (ATRA) resistant acute promyelocytic leukemia (APL) cells, and to explore its correlation to cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA) signal pathway.
METHODSNB4 (an APL cell line sensitive to ATRA) and NB4-R1 (a resistant strain of ATRA) were observed as subjects in this study. Effects of combined treatment of 0.1 mmol/L MAT and 1 [mol/L ATRA on the differentiation of two cell lines were detected using nitroblue tetrazolium (NBT) reduction test and flow cytometry (CD11b). Expressions of PML/RARot and PLSCR1 protein/gene were detected using Western blot and Real-time fluorescence quantitative PCR assay. Meanwhile, H89, PKA antagonist, was used to observe cell differentiation antigen and changes of aforesaid proteins and genes.
RESULTSMAT combined ATRA could significantly elevate positive rates of NBT and CD11 b in NB4-R1 cells, and significantly down-regulate the expression of PML/RARapha-fusion protein/gene (P < 0.05, P < 0.01). ATRA used alone could obviously enhance the expression of PLSCRI in NB4 cells at protein and mRNA levels (P < 0.01). But the expression of PLSCR1 was up-regulated in NB4-R1 cells, but with statistical.difference only at the protein level (P <0. 01). In combination of MAT, PLSCR1 protein expression was further elevated in the two cell lines (P < 0.01). Besides, there was statistical difference in mRNA expressions in NB4-R1 cells (P < 0.05). All these actions could be reversed by treatment of 10 micromol/L H89 (P < 0.05, P < 0.01).
CONCLUSIONMAT combined ATRA could significantly induce the differentiation of NB4-R1 cells, and inhibit the expression of PML/RARalpha fusion gene/protein, which might be associated with up-regulating PLSCR1 expression.
Alkaloids ; Antineoplastic Agents ; Cell Differentiation ; Cell Line, Tumor ; Down-Regulation ; Humans ; Leukemia, Promyelocytic, Acute ; metabolism ; Phospholipid Transfer Proteins ; metabolism ; Quinolizines ; RNA, Messenger ; Signal Transduction ; Tretinoin ; Tumor Cells, Cultured ; Up-Regulation
7.Effects of cyclooxygenase-2 inhibitors on gastric epithelial cell proliferating and gastric healing following hydrochloric acid-induced injury in rats
Weihao SUN ; Xilong OU ; Qian YU ; Dazhong CAO ; Hong CHEN ; Ting YU ; Hua SHAO ; Feng ZHU ; Yunliang SUN
Chinese Journal of Pathophysiology 2000;0(11):-
AIM: To clarify the effects of specific and non-specific cyclooxygenase-2 (COX-2) inhibitors on gastric epithelial cell proliferating and gastric healing following acid-induced damage. METHODS: Male Sprague-Dawley rats were given 1 mL of 0.6 mol/L hydrochloric acid (HCl) into the stomach. Ten minutes after the administration of the acid,the animals were given NS-398 (COX-2 inhibitor) or indomethacin. Levels of COX-1 and COX-2 in the gastric mucosa before and after HCl-administration were analyzed using western blotting and immunohistochemical staining. Proliferating cell nuclear antigen (PCNA) was detected using immunohistochemistry for epithelial cell proliferation. Gastric lesion index (LI) was assessed using planimetry. RESULTS: Expression of COX-2 was enhanced mainly in surface epithelial cells and neck cells following HCl-administration. At 24 h following acid administration,PCNA labeling index (PCNA-LI) was (22.72?4.33) % and (21.98?5.18) % in the groups treated with 40 mg/kg of NS-398 and indomethacin respectively,which was significantly lower than that in the control group [ (34.46?3.61) %,P
8.Effects of gastrin on expression of cyclooxygenase and growth factors in rat gastric mucosa
Weihao SUN ; Dazhong CAO ; Qian YU ; Xilong OU ; Hong SHEN ; Ting YU ; Feng ZHU ; Yunliang SUN ; Xiling FU
Chinese Journal of Pathophysiology 1986;0(02):-
AIM: To clarify the effects of gastrin on t he expression of cyclooxygenase (COX) and several growth factors in rat gastric mu cosa. METHODS: Male Sprague Dawley rats were fasted for 24 hours and s ubcutaneously injected with saline or gastrin 17 at doses of 1 ?g/kg, 10 ?g/kg and 100 ?g/kg, respectively. The expression of COX-1, COX-2, heparin-binding e p idermal growth factor-like growth factor (HB-EGF) and hepatocyte growth factor ( HGF) in the gastric mucosa were examined using Western blotting and immunohistoc hemical staining. Effects of a potent gastrin receptor antagonist YM022 on the e xpression of COX-1, COX-2, HB-EGF and HGF in gastric mucosa were also evaluated. RESULTS: Gastrin dose-dependently increased the expression of C OX-2 and HB-EGF in rat gastric mucosa while the expression of COX-1 and HGF did not change significantly after treatment with gastrin. However, pretreatment wit h YM022 dose-dependently abolished the up-regulation of COX-2 and HB-EGF express ion induced by gastrin. CONCLUSIONS: This study demonstrates that gastrin up-regulates C OX-2 and HB-EGF expression in rat gastric mucosa, indicating that COX-2 and HB-E GF are involved in pathogenesis of the gastrin-related gastric mucosal hyperplas ia and carcinoma of stomach.
9.Magnetic resonance imaging of lymph node metastasis in nasopharyngeal carcinoma
Zhong-Xiang DING ; Bi-Ling LIANG ; Jun SHEN ; Ying SUN ; Ting SONG ; Jian-Yu CHEN ;
Chinese Journal of Radiation Oncology 2005;0(05):-
Objective To explore the distribution rule of metastatic lymph node in nasopharyngeal carcinoma (NPC) by magnetic resonance imaging (MRI).Methods 315 histopathologically proved NPC patients were studied retrospectively.All patients had had their nasopharynx scanned by MRI with plain and contrast enhanced sequences.The distribution of lymph node was divided into six cervical levels plus retro- pharyngeal nodes(RN) according to RTOG guidelines proposed in 2003.Results 254 out of 315 patients (80.6%) had lymph node involvement,with 81 in the right neck alone,72 left neck alone,and 101 both necks;73 in RN alone,21 neck node alone,and 160 both necks and RN node.Skip metastasis was found in only 4 patients (1.6%).There was significant difference in BN metastasis between the primary tumor be- ing located merely on the superior/posterior wall and lateral wall (78% vs 49%,P<0.01).The incidence of lymph node metastasis in T1,T2,T3 and T4 patients was 73.5%,91.2%,71.9%,73.5% (P>0.05), respectively,without significant difference between early or advanced T stage in node distribution (P>0.05).Conclusions The incidence of lymph node metastasis is high in nasopharyngeal carcinoma,with retropharyngeal node being the most commonly involved,but the incidence of skip metastasis is very low. There is no significant difference between T stage and the incidence of lymph node metastasis.So is the dis- tribution of metastatic node.
10.Progress on the protective effect of heme oxygenase-1 in viral infection
Bai-he SUN ; Yi-ting WANG ; Yu-fei LU ; Lin-lin MA
Acta Pharmaceutica Sinica 2022;57(6):1574-1583
Heme oxygenase-1 (HO-1) is a cytoprotective enzyme that catalyzes the conversion of heme to CO, biliverdin, and iron, which together protect cells from oxidative and inflammatory damage and play an important role in maintaining cell homeostasis. In recent years, HO-1 has also been found to have antiviral biological effects, and the induced expression of HO-1 inhibits the replication of various viruses such as hepatitis C virus, hepatitis B virus, human immunodeficiency virus, dengue virus, ebolavirus, influenza A virus, Zika virus, severe acute respiratory syndrome coronavirus 2, human respiratory syncytial virus, hepatitis A virus and enterovirus 71. The inhibitory effect of HO-1 on these viruses involves three mechanisms, including direct inhibition of virus replication by HO-1 and its downstream products, enhancement of type I interferon responses in host cell, and attenuation of inflammatory damage caused by viral infection. This review focuses on the recent advances in the antiviral effect of HO-1 and its mechanism, which is expected to provide evidence for HO-1 as a potential target for antiviral therapy.