1.The Acting Mechanisms of Statins and Their Application in the Prevention and Treatment of Stroke
Ding-Ming SUN ; Zhi-Jun ZHANG ;
International Journal of Cerebrovascular Diseases 2006;0(10):-
Stroke is one of the most important causes of disability throughout the world.Epide- miological and clinical studies have demonstrated that statins significantly decrease the incidence of ischemic stroke.In addition to lipid-lowering effect,statins may also have a number of other acting mechanisms that are not dependent on reducing cholesterol levels.Moreover,statins inhibit cerebral vasospasm caused by subarachnoid hemorrhage.For most of the individuals,the safety and tolerability of statins are well.
2.Study on Quantitative Diagnosis of Stagnation of Qi and Blood Stasis Syndrome in Chronic Prostatitis
Jia-Chen DONG ; Yi-Ming SUN ; Zhi-Qiang WANG ;
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(03):-
Objective To discuss the quantitative diagnosis of stagnation of Qi and blood stasis syndrome in chronic prostatitis. To make diagnosis chart and ensure diagnosis threshold level which provide statistics evidence for syndrome differentiation of TCM. Methods By the statistical ways, 168 cases of chronic prostatitis belong to stagnation of Qi blood and stasis syndrome and 198 cases of non-stagnation of Qi and blood stasis syndrome were investigated. To make a diagnosis chart and ensure diagnosis threshold level by applying the method of the maximum likelihood discriminatory analysis. Results The quantitative diagnosis chart was made and diagnosis threshold level was 26. According to the retrospective and prospective test, its sensitivity, especially degree, coincidence rate, error rate and positive likelihood ratio were 94.64%, 88.89%, 91.53%, 8.47%, 8.52 and 94.28%, 90.32%, 92.42%, 7.58%, 9.74. Conclusion The indexes of the quantitative diagnosis have good objectivity. According to the retrospective and prospective test, the diagnosis chart was proved to be practical.
4.Characteristics and significance of IGF-1 and IGFBP2 gene expressions in ankle cartilage of patients with Kashin-Beck disease
Ming CHEN ; Bo YANG ; Yanhai CHANG ; Zhengming SUN ; Xiaoqing WANG ; Zhi YI ; Ming LING ; Xiong GUO
Chinese Journal of Endemiology 2021;40(3):179-185
Objective:To investigate the characteristics and significance of insulin-like growth factor 1(IGF- 1) and insulin-like growth factor binding protein 2 (IGFBP2) expressions in ankle cartilage of patients with Kashin-Beck disease (KBD).Methods:In this case-control study, 10 KBD patients who were hospitalized in the Department of Orthopedics of Shaanxi Provincial People's Hospital from January 2010 to December 2016 were selected as KBD group, and 10 patients with ankle fracture caused by trauma but without talus injury during the same period were selected as control group, the cartilage tissues of the two groups were collected. IGF-1, IGFBP2 positive cells, the mRNA and protein expressions of IGF-1, IGFBP2 in the cartilage tissues were detected by immunohistochemistry, real-time fluorescent quantitative PCR and Western blotting, respectively. According to the expressions of IGF-1 and IGFBP2 in ankle cartilage of KBD patients, a patient with amputation caused by trauma was selected in Shaanxi Provincial People's Hospital, and ankle joint cartilage was taken to prepare chondrocytes for in vitro cell verification experiments. The chondrocyte were divided into control group (0 ng/ml T-2 toxin), T-2 treatment group (20 ng/ml T-2 toxin) and T-2+ IGFBP2 silenced group (20 ng/ml T-2 toxin+ 50 nmol/L IGFBP2 siRNA), the MTT method and dimethyl methylene blue staining were used to detect the activity of chondrocyte and the secretion of sulfated glycosaminoglycan (sGAG). Results:In the control group and the KBD group, the number of IGF-1[(47.26 ± 8.97), (68.15 ± 7.42) cells] and IGFBP2 positive cells [(27.56 ± 5.40), (71.85 ± 7.62) cells] in the cartilage tissues were significantly different ( t = 4.487, 9.402, P < 0.01). Compared with the control group, the IGF-1, IGFBP2 mRNA and protein expression levels in KBD group were significantly higher, the differences were significantly different ( t = 3.340, 20.700, 4.684, 8.699, P < 0.05 or < 0.01). In cell experiment, the chondrocyte activitives and sGAG contents of the control group, T-2 treatment group, and T-2+ IGFBP2 silenced group were significantly different ( F = 226.70, 80.66, P < 0.01); among them, the cell activitives and sGAG contents of the T-2 treatment group and T-2+ IGFBP2 silenced group were lower than those of control group ( P < 0.05), and the T-2+ IGFBP2 silenced group were higher than those of the T-2 treatment group ( P < 0.05). Conclusions:The expressions of IGF-1 and IGFBP2 in the ankle cartilage of KBD patients are significantly higher. Silencing IGFBP2 gene can reduce the inhibitory effect of T-2 toxin on chondrocyte activity and the secretion of sGAG.
5.Evaluation of renal function and pathologica changes in patients with lupus nephritis by ~(99)Tc~m-DTPA renal dynamic imaging
Xian-jun, LI ; Gui-zhi, LI ; Jian-mei, SUN ; Zhi-hua, ZHAO ; Feng-qi, LI ; Ming, LI
Chinese Journal of Nuclear Medicine 2010;30(1):35-37
Objective To analyze the relation between ~(99)Tc~m-DTPA renal dynamic imaging and pathological changes in patients with lupus nephritis (LN).Methods Ten normal control and 29 patients with LN underwent ~(99)Tc~m-DTPA renal dynamic imaging.The LN patients were divided into two groups:silent LN (SLN) group,18 patients;and obvious LN (OLN) group,11 patients.For each case,glomerular filtration rate (GFR),peak time (t_p),half excretion time (t_(1/2)) and the excretion rate at 20 min (R_(20)) were calculated.Assessment of renal function on the scintigraphic images was evaluated by nuclear medicine physicians.The t-test,Fisher'exact probability and R×C association were used for data analysis.Results There were significant differences between normal people and two goups of LN in tp(t=5.3,9.3,both P<0.05),t_(1/2)(t=6.9,12.0,both P<0.05)and R_(20)(t=10.1,12.1,both P<0.05).As to GFR,there was significant decrease in OLN patients(t=4.1,P<0.05),but not in SLN patients(t=1.7,P>0.05).Diagnoses of renal function by renal dynamic imaging were compared with the renal pathological changes (r=0.2273,P<0.05).Conclusions ~(99)Tc~m-DTPA renal dynamic imaging is useful for evaluation of the early stage renal function for LN patients and to diagnose LN patients with no symptom of renal impairment.It may help to assess the degree of renal parenchymal damage while obviating the need for renal biopsy in these patients.
6.Development of an oxygen inhalation device with automatic control.
Hong-zhi SUN ; Ping LI ; Ming JIN
Chinese Journal of Medical Instrumentation 2005;29(6):452-413
This article elaborates the working principle, composition and main functions of an intelligent oxygen inhalation device based on AT 89S51, which can not only detect and control oxygen flow in real time, but also control the output power of the humidifier and monitor the respiration state of the patient.
Automation
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instrumentation
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Equipment Design
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Humans
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Nebulizers and Vaporizers
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Oxygen Inhalation Therapy
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instrumentation
7.Disseminated herpes zoster in immunocompetent patients not due to varicella-zoster virus gene mutation.
Zhong-hui SUN ; Yun-yi GUO ; Ming LI ; Zhi-rong YAO
Chinese Medical Journal 2013;126(16):3193-3193
Adult
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Herpes Zoster
;
etiology
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Herpesvirus 3, Human
;
genetics
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Humans
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Male
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Middle Aged
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Mutation
8.Gastric fistulation with transcutaneous endoscopy in a child.
Zhi-hong HU ; Ming SHEN ; Li SUN ; Rong QIAO ; Fu-mei JIA ; Si-yuan YANG
Chinese Journal of Pediatrics 2004;42(3):222-223
10.Intermittent negative pressure affects tendon-bone healing after anterior cruciate ligament reconstruction
Zhengming SUN ; Ming LING ; Weilou FENG ; Xianghui DONG ; Shizhang LIU ; Zhi YI
Chinese Journal of Tissue Engineering Research 2013;(37):6573-6579
BACKGROUND:Intermittent negative pressure has been proven to promote the repairing of soft tissue and bone healing, but the effect of negative pressure on the tendon-bone healing after anterior cruciate ligament reconstruction has not been reported.
OBJECTIVE:To research the effect of intermittent negative pressure on tendon-bone healing after anterior cruciate ligament reconstruction and on the biomechanics of tendon grafts.
METHODS:A total of 24 New Zealand white rabbits were randomly selected to establish the models of anterior cruciate ligament reconstruction of autogenous semitendinosus. The hind leg of one side was selected randomly as the negative pressure group, and the joint of the negative pressure side was connected with the micro-negative pressure aspirator through drainage tube and maintained a low-intensity and intermittent negative pressure;the contralateral hind leg was as the control and connected with ordinary drainage tube. Drainage tubes of both sides were removed at the same time after 5 days. At 6 weeks after modeling, the joint fluid was drawn to detect the expression levels of interleukin-1β;femur-ligament-tibia complex was used for tension measurement of tendon graft, and histological observation of tendon-bone interface.
RESULTS AND CONCLUSION:One rabbit had joint infection, and final y 23 rabbits were included in the study. Tension measurement results showed that maximum load for breakage in negative group pressure was significantly greater than that in the control group (P<0.05). Histological observation found that the number of osteoblasts in the negative pressure group was significantly more than that in the control group, and the difference was statistical y significant (P<0.01). Detection of synovial fluid showed that iterleukin-1βcontent in synovial fluid of the negative pressure group was lower than that in the control group, and the difference was statistical y significant (P<0.01). Intermittent negative pressure may play an active role in tendon-bone healing and modeling of tendon graft after anterior cruciate ligament reconstruction.