1.Intervention of Shenhongtongluo Granules on inflammatory response and oxidative stress of atherosclerosisin rabbit
Yingzi CUI ; Ruonan WANG ; Lihong JIANG
International Journal of Biomedical Engineering 2019;42(6):490-496,516
Objective To study the effects of ShenhongTongluo Granules on blood lipids, inflammatory related factors and oxidative stress-related indexes in rabbit atherosclerosis model, and to explore the mechanism of Shenhongtongluo Granules on atherosclerosis. Methods 70 healthy male New Zealand white rabbits were randomly divided into blank control group, model group, aspirin combined with simvastatin group, aspirin group, simvastatin group, Shenhongtongluo Granule prevention group, and Shenhongtongluo Granule treatment group. The rabbit atherosclerosis model was established by lipidforage diet combined with immune stimulation, and the blank group was fed with commonforage. The Shenhongtongluo Granule prevention group was given Shenhongtongluo Granule at the beginning of modeling, and the other intervention groups were given the corresponding drugs after the successful modeling. Before and after modeling, lipid changes were checked in each group, including total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), superoxide dismutase activity (SOD) and malondialde-hyde (MDA) in the serum. The aorta of the model group was separated and oil red O staining was performed to observe the pathological and morphological changes of the aorta. Western blotting and reverse transcription polymerase chain reaction (RT-PCR) were used to detect the expression of Nox4 and p22phox. Western blotting was used to detect the expression of TLR4 and NF-κB protein in aorta. Results Twelve weeks after modeling, atheromatous plaques were obviously observed on the aorta stained with oil red O, indicating successful atherosclerosis modeling. Compared with the blank control group, TC, TG, and LDL-C in the serum of the atherosclerosis model group were significantly increased (all P<0.05). Compared with the model group, the atherosclerotic plaques in the Shenhongtongluo Granule prevention and the treatment groups were significantly reduced , the levels of TC , TG , LDL-C in serum were decreased, and the levels of SOD were increased, and MDA levels were reduced (all P<0.05). The expressions of TLR4, NF-κB, Nox4, and p22phox in the aorta of Shenhongtongluo Granule prevention group were significantly reduced (all P<0.05). Conclusions Shenhongtongluo Granules can inhibit the formation of atheromatous plaques, have a good effect on regulating blood lipids, and can improve the ability of anti-oxidative stress, and have a good preventive and therapeutic effect.
2.Reliability and validity of the Chinese version of the Type 2 Diabetes Stigma Assessment Scale
Yufeng LI ; Hongwen MA ; Ruonan HOU ; Yajing ZHANG ; Chuyun CUI ; Changde JIN
Chinese Journal of Practical Nursing 2017;33(30):2343-2347
Objective To translate the English version of Type 2 Diabetes Stigma Assessment Scale(DSAS-2) into Chinese,and to test the reliability and validity of the Chinese version of DSAS-2. Methods The DSAS-2 was translated and adapted according to Chinese culture following the translation and back-retranslation procedure.The reliability and validity of the Chinese version of DSAS-2 was tested among 294 patients with type 2 diabetes. Results The Chinese version of DSAS-2 included three subscales: Treated Differently (6 items), Blame and Judgment (7 items), and Self-stigma (6 items) and contained a total of 19 items.The Cronbach α coefficient of the Chinese version of DSAS-2 was 0.879,the Cronbach α coefficient of three factors was 0.832,0.815 and 0.844,respectively;the test-retest reliability was 0.835. The content validity index was 0.916. The scores of DSAS-2 correlated with the scores of Rosenberg Self-esteem Scale, Patient Health Questionnaire 8- Item Scale and Generalized Anxiety Disorder 7-Item Scale (r =-0.452, 0.443, 0.412, P<0.01). Three factors were extracted by exploratory factor analysis and could explain 55.75% of the total variance. Conclusions The Chinese version of DSAS-2 has acceptable reliability and validity,which can be used to evaluate stigma among patients with type 2 diabetes in China.
3.CD4+T cells mediate respiratory syncytial virus(RSV)-induced airway inflammation through secre-ting Th2 cytokines
Song BAI ; Yulin CUI ; Ruonan CHAI ; Yue FAN ; Beixing LIU
Chinese Journal of Microbiology and Immunology 2017;37(10):747-752
Objective To investigate the role of CD4+T cells in airway inflammation induced by respiratory syncytial virus (RSV) infection. Methods Animal models of acute RSV infection were estab-lished. Lung tissues were stained with hematoxylin and eosin (HE) to observe histopathological changes. Total number of CD4+T cells and the number of CD4+T cells secreting Th1/Th2 cytokines (IFN-γ, IL-4, IL-5 and IL-13) in spleen were detected by flow cytometry. Adoptive transfer of CD4+T cells was performed to identify the role of CD4+T cells in RSV-induced airway inflammation. Results RSV infection increased the total number of splenic CD4+T cells,particularly Th2-type CD4+T cells. The absolute numbers of IL-4/IL-5/IL-13-secreting CD4+T cells were increased significantly after RSV infection. Furthermore, adoptive transfer of CD4+T cells into BALB/c mice not only promoted the infiltration of mononuclear cells in lung,but also enhanced the secretion of Th2 cytokines during RSV infection. Conclusion CD4+T cells are involved in RSV-induced airway inflammation through secreting Th2 cytokines.
4.Evidence summary for targeted temperature management in brain injury patients with ICU
Tiantian GAI ; Zimeng LI ; Yu CUI ; Ruonan HOU ; Ludan XU ; Yin HE
Chinese Journal of Nursing 2023;58(21):2653-2661
Objective To evaluate and summarize the evidence related to targeted temperature management in brain injury patients with ICU for health care workers and decision makers.Methods We systematically searched from the guideline websites,domestic and foreign databases and association official websites to collect the literature including guidelines,expert consensuses,clinic decision-making,evidence summaries and systematic reviews,according to the 6s evidence model.The search time limit was from January 2012 to April,2023.Evidence was extracted after the quality evaluation of the literature was conducted by evidence-based researchers.Results A total of 19 articles were incorporated,including 6 guidelines,3 clinic decision-making,5 expert consensuses,4 systematic reviews and 1 evidence summary.Finally,25 pieces of best evidence were formed from 10 aspects,temperature range,starting time,body temperature monitoring,pipeline management,analgesia and sedation management,mechanical ventilation and oxygenation management,hemodynamic support,nutrition management,condition monitoring and prognosis evaluation.Conclusion The best evidence for management of targeted temperature in brain injury patients with ICU in this study is scientific and comprehensive,providing the evidence-based basis for medical staff to standardized management of targeted temperature in critically ill patients in clinical practice.
5.Analysis of drug procurement model of multiple areas based on joint inventory in public hospitals
Wenjun QU ; Ruonan BAI ; Li CUI ; Yan ZHOU
Journal of Pharmaceutical Practice and Service 2024;42(7):315-318
Objective To evaluate the application effect of joint inventory management method in drug procurement and control management in multiple hospital areas. Methods Based on the joint inventory management model, four pilot drugs were selected from a certain group hospital by reasonable data processing methods for research. The effects of the model application were compared and analyzed from aspects such as inventory cost, turnover situation, and supply situation. Results After applying the joint inventory management model led by the central hospital, the inventory and amount of drugs in the three pilot hospitals were significantly reduced, with the inventory reduced by 31.93% and the average inventory amount decreased by 16.23%; The inventory turnover days had significantly decreased, with the turnover days of all three branches decreasing by more than one day; The drug shortage rate had significantly decreased, with the most significant change among the pilot drugs being the doxorubicin liposome injection, which had a 6.7% decrease in the shortage rate; The comparison results of each group of data showed statistical significance (P<0.05). Conclusion Adopting a central hospital led joint inventory management model in multiple hospital areas could significantly improve the effectiveness of drug procurement management and inventory management, which enhanced the efficiency of hospital fund utilization.
6.An investigation on a case of hand-foot-mouth disease caused by coxsackie-virus A6 associated with a vaccine-derived poliovirus co-infection.
Chun CHEN ; Huaping XIE ; Min CUI ; Ruonan ZHEN ; Ying ZHANG ; Lihong NI ; Yingyi HUANG ; Jinmei GENG ; Huixi LU ; Biao DI ; Ming WANG
Chinese Journal of Epidemiology 2014;35(1):61-65
OBJECTIVETo identify the pathogen and characteristics on a case of hand-foot-mouth disease (HFMD) caused by coxsackie-virus A6 (CA6) associated with vaccine-derived poliovirus (VDPV) co-infection.
METHODSField epidemiological study at the epidemic area was conducted and 16 stool samples including from the patient and close contacts were collected for isolation and identification of the enterovirus (EV). 21 stool samples from patients diagnosed as HFMD were collected in the same hospital at the same month to detect CA16,EV71, CA6 and PV by real-time RT-PCR or RT-PCR. The VP1 gene of the CA6 was amplified by RT-PCR and PCR products were sequenced and analyzed.
RESULTSThe patient showed only HFMD symptoms, but no symptoms related to acute flaccid paralysis (AFP). No EVs were isolated from 16 samples collected from the patient and close contacts. And no AFP cases were found by an active search. A total of 21 samples from patients diagnosed as HFMD were collected in the same hospital at the same month and 4 were found to be EV71, 2 were CA16 and 15 (include the patient)were CA6. Only this patient was found to have had VDPV II infection. The CA6 VP1 gene was amplified from the HFMD patient and 9 other cases from the same hospital at the same month. Nucleotide sequences of the VP1 gene among the 9 strains shared 98.9%-100.0% in homology and 96.0%-100.0% in the deduced amino acid sequences. Phylogenetic analysis of the VP1 sequences categorized the 9 strains into the same branch. There were 6 nucleotides changes including U2909A between the VP1 region of the VDPV strain of the case and Sabin II. Results from phylogenetic analysis on the VP1 sequences indicated that the VDPV strain of the case was different from other VDPVs strains isolated in the world.
CONCLUSIONThis case was a HFMD which caused by CA6 co-infection with VDPV II and the VDPV was newly discovered. HFMD symptoms of the case were caused by CA6. The reason why this case did not have AFP symptoms was probably due the protective effect of IPV vaccine. No AFP cases were found by the active search for AFP cases conducted in the area, which indicated that VDPV did not cause virus circulation in this area.
Child, Preschool ; Coinfection ; Enterovirus A, Human ; isolation & purification ; Female ; Hand, Foot and Mouth Disease ; complications ; virology ; Humans ; Poliovirus Vaccines ; adverse effects
7.Preparation of Mycobacterium tuberculosis EsxV lipid nanoparticles subunit vaccine and its immunological characteristics.
Lu BAI ; Yanzhi LU ; Huanhuan NING ; Yali KANG ; Yanling XIE ; Jian KANG ; Xue LI ; Ruonan CUI ; Yin WEI ; Yueqin LIU ; Yinlan BAI
Chinese Journal of Biotechnology 2023;39(10):4085-4097
To prepare a lipid nanoparticle (LNP)-based subunit vaccine of Mycobacterium tuberculosis (Mtb) antigen EsxV and study its immunological characteristics, the LNP containing EsxV and c-di-AMP (EsxV: C: L) was prepared by thin film dispersion method, and its encapsulation rate, LNP morphology, particle size, surface charge and polyphase dispersion index were measured. BALB/c mice were immunized with EsxV: C: L by nasal drops. The levels of serum and mucosal antibodies, transcription and secretion of cytokines in lung and spleen, and the proportion of T cell subsets were detected after immunization. EsxV: C: L LNPs were obtained with uniform size and they were spherical and negatively charged. Compared with EsxV: C immunization, EsxV: C: L mucosal inoculation induced increased sIgA level in respiratory tract mucosa. Levels of IL-2 secreted from spleen and ratios of memory T cells and tissue-resident T cells in mice were also elevated. In conclusion, EsxV: C: L could induce stronger mucosal immunity and memory T cell immune responses, which may provide better protection against Mtb infection.
Animals
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Mice
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Mycobacterium tuberculosis
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Antigens, Bacterial
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Immunization
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Nanoparticles
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Vaccines, Subunit
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Mice, Inbred BALB C