1.Study on aorta elastic properties in experimental mouse model of atherosclerosis by ultra-high frequency ultrasound
Ya LIU ; Junli WANG ; Jun ZHANG ; Yani LIU ; Youbin DENG
Chinese Journal of Ultrasonography 2014;(11):990-993
Objective To assess the aorta elastic properties in the procession of atherosclerosis by ultra‐high frequency ultrasound ,and to detect the relationship between the aorta elastic properties and the atherosclerotic plaque burden .Methods Mice deficient for the apolipoprotein E (ApoE‐/‐) with high‐cholestrol diet were studied as an age‐dependent model of atherosclerosis .At 8 ,16 ,24 and 32 weeks of age , the blood pressure in the ascending aorta was measured by catheter ,and the aorta mechanical properties were assessed by measuring aortic elastic modulus of the ascending aorta with ultra‐high frequency ultrasound .The plaque burden was assessed by high‐frequency ultrasound and Masson′s trichrome stain , separately .Results Vessel thickness at the lesion‐prone sites of the lesser curvature of the aorta and the proximal brachiocephalic artery increased with age ,consistent with the Masson′s trichrome staining which showed age‐dependent worsening of atherosclerosis in the mice model .Elastic modulus of the aorta significantly increased from 8 to 32 weeks of age in E‐/‐mice .There was a statistically difference between any two groups .Conclusions With the progression of atherosclerosis and the increased plaque burden ,aorta mechanical properties deteriorated in Apo E‐/‐mice .Ultra‐high frequency ultrasound was a potential tool for assessment of plaque burden and aorta mechanical properties in mouse model .
2.Clinical Analysis of 32 Children with Measles Complicated with Severe Pneumonia and Acute Respiratory Distress Syndrome
ya-jun, LIU ; xiao-jun, TANG ; cheng-jun, LIU ; ren-yi, YANG
Journal of Applied Clinical Pediatrics 2006;0(22):-
Objective To explore the clinical characteristics and the remedial measurement of measles complicated with severe pneumonia and the acute respiratory distress syndrome(ARDS) in children.Methods From Jan 2004 to Jul 2007,clinical data of 32 cases with measles complicated with severe pneumonia and ARDS in PICU of Chongqing Children's Hospital were retrospective analyzed.In addition,the ratio of partial pressure of oxygen in arterial blood fractional concentration of oxygen in inspired gas[pa(O2)/FiO2] between the death group and survival group,the mortality rates between the hormone therapy group and control group were performed.Results Sixteen cases were cured and 16 cases were died,with the mortality rate 50%.The ratio of pa(O2) /FiO2 before mechanical ventilation in death group was lower than that in the survival group [(11.93?1.67) kPa,(21.77?1.16) kPa,respectively,P0.05).Conclusions ARDS is a severe complication in children with measles pneumonia and associated with a high mortality,which requires early diagnosis and intervention to improve survival rate and prognosis.The ratio of pa(O2)/FiO2 may provide reference to evaluation for severity and prognosis of ARDS.
4.Based on evidence to establish reporting guidelines for TCM-featured acupuncture systematic reviews/Meta-analysis: a methodology discussion.
Ya-Jun WANG ; Ya-Li LIU ; Ke-Hu YANG ; Yi GUO
Chinese Acupuncture & Moxibustion 2014;34(12):1231-1234
Existing reporting guidelines for systematic reviews/Meta-analysis (SRs/MAs) cannot meet the requirements of clinical practice and scientific research, so based on evidence, methods and thoughts on establishing reporting guidelines for TCM-featured acupuncture systematic reviews/Meta-analysis were proposed. Through literature analysis, according to evidence-based principle, preliminary ideas on methodology of establishing reporting guidelines for TCM-featured acupuncture systematic reviews /Meta-analysis were proposed. With consensus as one main research method, it was proposed that in the consensus that was selected and established by experts, the pro- portion of Chinese scholars should be increased to fully declare the opinions of Chinese acupuncturists, and by verification of practice and application, the reporting guidelines for TCM-featured acupuncture systematic reviews/Meta-analysis can be finally made.
Acupuncture Therapy
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methods
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standards
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Evidence-Based Medicine
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methods
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standards
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Humans
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Medicine, Chinese Traditional
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methods
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standards
5.Single application on iris localization technology in excimer laser for astigmatism
Jun-Hua, HAO ; Yan-Jun, REN ; Xia, LIU ; Jie, GUO ; Ji, LI ; Ya-Juan, ZHANG
International Eye Science 2014;(6):1113-1115
AIM: To discuss the single application on iris localization technology in excimer laser for the treatment of astigmatism.
METHODS:Totally 203 cases (406 eyes) of laser in situ keratomileusis ( LASIK ) in the treatment of compound myopic astigmatism patients were operated from November 2011 to November 2012 in our hospital. They were divided into two groups. One was observation group using iris localization and the other was control group using routine operation. Patients in the observation group of 100 cases ( 200 eyes ) , aged 18-43 years old, spherical diopter was - 1. 25 to - 8. 75D, astigmatism was -1. 0 to -3. 25D. In control group, 103 patients ( 206 eyes ) , aged 19-44 years old, spherical diopter was -1. 75-9. 50D, astigmatism was -1. 0 to -3. 25D. The patients in the observation group before the application of WaveScan aberrometer check for iris image, spherical lens, cylindrical lens and astigmatism axis data operation, only single application of iris location, without using wavefront aberration guided technology, laser cutting patterns for conventional LASIK model, spherical, cylindrical mirror and astigmatism axis RESULTS: Postoperative residual astigmatism, the observation group was significantly better than the control group. Astigmatism axial measurement after operation, the observation group was significantly less than that of the control group. Postoperative visual acuity at 6mo, the observation group was better than that of the control group. The difference was statistically significant.
data source to preoperative wavefront aberration results. The control group received routine LASIK. It was applicated comprehensive optometry optometry respectively to examine astigmatism and axial, based on the computer analysis during the preoperative, 1wk after the operation, and 6mo. Analysis of using SPSS 17 statistical software, it was independent-sample t test between the two groups of residual astigmatism and astigmatism axis.
CONCLUSION: For patients who cannot complete the wavefront aberration guided treatment of astigmatism, can separate the application of wavefront aberration analyzer automatic iris recognition technology to improve precision of astigmatism treatment, give full play to advanced technical performance of equipment, which has good application value.
6.Effects of Shoutai Pill Containing Serum on Bioactivity Behavior of Trophoblast Cells of Spontaneous Abortion Patients.
Ya LI ; Xin-yu LIU ; Jun-ling WANG ; Yu-lei LIU ; Hui TENG
Chinese Journal of Integrated Traditional and Western Medicine 2016;36(5):586-591
OBJECTIVETo explore the effect of Shoutai Pill (STP) containing serum on bioactivity behaviors of trophoblast cells in spontaneous abortion (SA) patients such as cell proliferation, invasion, migration and secretion.
METHODSTrophoblast cells in artificial abortion in normal pregnancy and SA patients were isolated and cultured in vitro, which were then treated with STP containing serum at various concentrations (5%, 10%, 20%, respectively). Blank serum was taken as the normal control group and dydrogesterone containing serum as the dydrogesterone control group. The proliferation, cycle distribution, invasion and migration capacity, and beta human chorionic gonadotropin (p-HCG) level were detected by methyl thiazolyl tetrazolium (MTT) colorimetry, flow cytometry (FCM), Transwell experiments, and ELISA, respectively.
RESULTSCompared with the normal control group, the activity of cell proliferation obviously decreased, ratios of apoptotic cells (SubGO/G1) and G2/M phase were obviously elevated, S phase cell ratio was obviously reduced (all P < 0.05). Transwell experiments indicated invasion and migration capacity obviously decreased, secreted beta-HCG level were obviously reduced after 72-h intervention (P < 0.05). Compared with the SA group, the activity of cell proliferation obviously increased, ratios of apoptotic cells and G2/M phase were obviously reduced, S phase cell ratio was obviously elevated, invasion and migration capacity were obviously enhanced, secreted beta-HCG level were obviously elevated after 72-h intervention in the dydrogesterone control group and each STP containing serum group (all P < 0.05). The activity of trophoblastic cell proliferation, S phase cell ratio, invasion and migration capacity, and secreted beta-HCG level were strengthened along with increased STP containing serum. Besides, the effects of 20% STP containing serum group were significantly superior to those of the dydrogesterone control group (P < 0.05).
CONCLUSIONSTP containing serum could dose-dependently enhance the proliferative activity of trophoblastic cells, invasion and migration capacity, secretion of beta-HCG, and reduce the apoptosis of trophoblast cells, which might be one of mechanisms for STP preventing and treating SA.
Abortion, Spontaneous ; Apoptosis ; Cell Cycle ; Cell Proliferation ; Cells, Cultured ; Drugs, Chinese Herbal ; pharmacology ; Dydrogesterone ; pharmacology ; Female ; Humans ; Pregnancy ; Trophoblasts ; drug effects
7.STUDIES ON TREATMENT OF ODL FIELD WASTEWATER BY OIL-DEGRADING BACTERIA
Feng-Lai LIANG ; Ya-Jun GUAN ; Xue-Song SUN ; Mo-Han LIU ; Ru-Lin LIU ;
Microbiology 1992;0(02):-
A mixed bacteria culture F6 isolated from oil field wastewater can degrade petroleum hydrocarbons efficiently. The bacteria were suitable to treat oil-polluted wastewater of oil field. Simulated result treating oil-polluted wastewater in laboratory showed that after "XingyiLian" wastewater of Liaohe Oil Field was treated by fluidized-bed bioreactor system with the vehicle of activated carbon , the amount of oil and CODcr of the flow out water were decreased from 45mg/L to 4. 1mg/L and 470mg/L to 42mg/L separately , according with first class standards of Chinese Wastewater Discharge Regulation.
8. Effect and mechanism of rosuvastatin preconditioning on inflammatory cytokines release in vascular smooth muscle cells of middle cerebral artery of rats after focal cerebral ischemia-reperfusion
Acta Anatomica Sinica 2019;50(6):713-717
Objective To explore the effect and probable mechanism of rosuvastatin preconditioning on inflammatory cytokines interleukin (IL) -1β, IL-6 and tumor necrosis factor a (TNF-α) release in vascular smooth muscle cells (VSMCs) of middle cerebral artery after ischemia-reperfusion. Methods Thirty-six healthy SD rats were randomly assigned into three groups; sham operation group, focal cerebral ischemia-reperfusion group and rosuvastatin preconditioning group. There were 12 rats in each group. At the 24th hour of reperfusion after middle cerebral artery occlusion (MCAO) for 2 hours, the mRNA and protein expression of IL-1β, IL-6 and TNF-α release in VSMCs of middle cerebral artery were detected by Real-time PCR and Western blotting, respectively. Also, the mRNA and protein expression of nuclear factor κB (NF-κB) were measured by Real-time PCR and Western blotting. Results At the 24th hour of reperfusion after MCAO for 2 hours, the mRNA and protein expression of IL-Iβ, IL-6 and TNF-ot were markedly up-regulated in rats of model group; rosuvastatin preconditioning can significantly inhibited overexpression of IL-1β, IL-6 and TNF-ot at the mRNA and protein levels. And the decreasing of mRNA and protein expression of NF-κB was also found in this study. Conclusion Rosuvastatin preconditioning can decrease the release of inflammatory cytokines IL-1β, IL-6 and TNF-α in VSMCs of MCA. It can relieve the inflammatory injury after ischemia-reperfusion in brain. The effect of rovastatin on IL-1β,IL-6 and TNF-ot may be related to the reduction of the expression of NF-κB in VSMCs.
9.Reflections on the calculation methods of the imbalance degree in the biophysical properties of meridian points
Shu-Ya MA ; Li-Jia PAN ; Jun LIU ; Yan-Fen SHE
Journal of Acupuncture and Tuina Science 2021;19(4):271-277
Objective: To analyze and compare the features and strengths of different methods for calculating the biophysical properties of meridian points, and thus propose corresponding suggestions to fully achieve the research and application value of biophysical properties of meridian points.Methods: We searched and collected the literature on the imbalance of biophysical properties of meridian points between January 1, 2005 and March 1, 2020 in China National Knowledge Infrastructure (CNKI), Wanfang Academic Journal Full-text Database (Wanfang), Chongqing VIP Database (CQVIP) and PubMed database, and then analyzed, compared, and summarized the applied methods for calculating the imbalance degree of the biophysical properties of meridian points. Results: The current methods for calculating the imbalance degree of the biophysical properties of meridian points are diverse and can be summarized as the following three: direct comparison of the measured values of the left and right namesake points, difference method, and ratio method. The low uniformity of the calculation methods has limited the promotion and application of its research results. Conclusion: In future research on the biophysical properties of meridian points, multidisciplinary cooperation in terms of imbalance degree calculation methods, detection instruments, and health data models is necessary to achieve more widely applicable scientific conclusions and more generalized experimental results.
10.Early Mitotic Inhibitor 1 Regulates DNA Re-replication Mediated by Human Papillomavirus Subtype 16 E7 in Response to DNA Damage.
Ya-Fei LIU ; Yan-Jun SHEN ; Yang YANG ; Lan CHAO ; Fang YANG
Acta Academiae Medicinae Sinicae 2020;42(4):485-490
To explore the molecular mechanism of human papillomavirus subtype 16(HPV-16)E7 oncogene-induced DNA re-replication in response to DNA damage. Flow cytometry was performed to examine the cell cycle changes in RPE1 E7 cells stably expressing HPV-16 E7 and its control cell RPE1 Vector after DNA damage.Immunoblotting assay was used to evaluate the early mitotic inhibitor 1(Emi1)expression in RPE1 E7 and RPE1 Vector cells with or without DNA damage.The changes of the proportion of polyploidy was detected by flow cytometry in DNA-damaged RPE1 E7 cells interfered by Emi1 small interfering RNA. Compared with the control cells,the proportion of polyploids in RPE1 E7 cells was significantly increased in response to DNA damage(=6.397,=0.0031).Emi1 protein expression was significantly increased in DNA damaged RPE1 E7 cells(=8.241,=0.0012).The polyploid ratio of RPE1 E7 cells was significantly reduced after Emi1 was interfered by two independent small interfering RNAs(=2.916,=0.0434;=3.452,=0.0260). In response to DNA damage,Emi1 promoted DNA re-replication caused by HPV-16 E7.
DNA Damage
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DNA Replication
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Human papillomavirus 16
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Mitosis
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Oncogene Proteins, Viral