1.Error analysis and solution with different attenuation of CT bed and radiotherapy bed.
Chinese Journal of Medical Instrumentation 2014;38(1):75-75
Existence of rays with different decay rate between radiotherapy CT bed and radiotherapy bed, this paper discusses the rate induced and identified two kinds of simple solution.
Equipment Failure
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Radiotherapy
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instrumentation
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Tomography, X-Ray Computed
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instrumentation
2.Efficacy analysis on type 2 diabetes mellitus treated with acupuncture in females.
Yuan WANG ; Zhi-Cheng LIU ; Bin XU
Chinese Acupuncture & Moxibustion 2014;34(1):21-24
OBJECTIVETo evaluate the efficacy and the relevant effect factors of acupuncture for type 2 diabetes mellitus (T2DM) in females.
METHODSOf 83 female patients of T2DM, 49 cases were deficiency of kidney yin syndrome and 34 cases were yin and yang deficiency syndrome. Acupuncture was adopted and the acupoints were selected according to the syndrome differentiation. In kidney yin deficiency syndrome, Taixi (KI 3), Shenmen (HT 7), Taichong (LR 3) and Sanyinjiao (SP 6), etc. were selected. In yin and yang deficiency syndrome, Shenshu (BL 23), Pishu (BL 20), Yishu (Extra) and Jingmen (GB 25), etc. were selected. In 3 courses of treatment, the changes in fasting plasma glucose (FPG), fasting insulin (FINS), insulin sensitivity index (ISI), insulin resistace index (Homa-IR), index of islet beta-cell function (Homa-beta), total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C) were compared before and after treatment between the two groups. The relationship of the efficacy was analyzed in terms of the syndrome differentiation, age, duration of sickness, obesity and hereditary factors.
RESULTSAfter the treatment, the levels of FPG, FINS, Homa-IR, TC, TG and LDL-C were reduced obviously (all P < 0.01) and the levels of ISI, Homa-beta and HDL-C were increased apparently (all P < 0.01). The total clinical effective rate was 80.7% (67/83), in which, that of kidney yin deficiency syndrome was 83.7% (41/49) and that of yin and yang deficiency syndrome was 76.5% (26/34). The efficacy was not different significantly between the two syndromes. But, the younger the age was, the better the efficacy was.
CONCLUSIONAcupuncture positively regulates the glucose and lipid metabolism in the patients of T2DM. This therapy improves insulin resistance, enhances the body sensitivity to insulin and improves insulin beta-cell function. The efficacy is related to the patient's age.
Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Blood Glucose ; metabolism ; Cholesterol ; blood ; Diabetes Mellitus, Type 2 ; metabolism ; therapy ; Female ; Humans ; Middle Aged ; Treatment Outcome ; Triglycerides ; blood ; Young Adult
3.Serum cytokine levels in children with febrile convulsion.
Hong-Xia YUAN ; Man-Zhi WANG ; Fang WANG
Chinese Journal of Contemporary Pediatrics 2008;10(3):405-406
Adolescent
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Child
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Child, Preschool
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Cytokines
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blood
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Female
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Humans
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Infant
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Interleukin-6
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blood
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Interleukin-8
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blood
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Male
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Seizures, Febrile
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immunology
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Tumor Necrosis Factor-alpha
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blood
4.Prestin Expression in HEI-OC1 Cells With Oxidative Stress Damage
Junyi WANG ; Xiaomin LAI ; Lijuan GONG ; Yuan XIA ; Zhi WANG
Journal of Audiology and Speech Pathology 2017;25(1):49-52
Objective To examine the effects of oxidative stress induced damage to the Prestin expression in HEI-OC1 cells,and to study the mechanism of sensory deafness.Methods We used different concentrations (50μM,100μM,200μM)of hydrogen peroxide canister to cultivate HEI-OC1 cells,and to detect the activity of su-peroxide dismutase(SOD).The quantitative real-time PCR and immunofluorescence were used to detect the prestin expression of mRNA.Results The SOD activity decreased in the HEI-OC1 cells damaged by oxidative stress.The high concentration of the infected group decreased more significantly(F= 9926.293,P<0.01).The expressions of Prestin mRNA and Prestin protein were decreased obviously in the HEI-OC1 cells.The high concentration of in-fected group decreased more significantly (F= 4065.046and7657.217,P<0.01).Conclusion Oxidative stress in-ducing damage inhibits the expression of prestin.Prestin protein may be used as a molecular marker of sensory deafness.
5.Non-neuronal muscarinic receptor activation prevents apoptosis of endothelial cells induced by homocysteine.
Jun LI ; Chao-Liang LONG ; Zhi-Yuan PAN ; Yuan-Yuan ZHANG ; Hai WANG
Chinese Journal of Applied Physiology 2013;29(6):565-572
OBJECTIVEEndothelial apoptosis plays an important role in the initiation of atherosclerosis. It would be useful to clarify whether activation of non-neuronal muscarinic receptor (NNMR) could prevent endothelial apoptosis and atherosclerosis. We investigated the effects of NNMR activation on regulating rat aortic endothelial cells (RAECs) apoptosis induced by homocysteine, an independent risk factor of atherosclerosis, and further studied its molecular mechanism.
METHODSRAECs were incubated using homocysteine at the concentration of 2.7 mmol/L for 36 h. RAECs were also pre-treated with carbachol or arecoline to examine their effects. RT-PCR was used to assess changes in the gene expression related to cell apoptosis.
RESULTSIncubation of RAECs with homocysteine at the concentration of 2.7 mmol/L resulted in morphologic changes, such as cellular shrinkage, membrane blebbing, chromatin condensation and margination. These could be attenuated by pretreatment with carbachol and arecoline at the concentration of 10 micromol/L for 12 h. Homocysteine induced apoptosis in RAECs and the molecular mechanisms were associated with the regulation of fas, fas-L and caspase-8 in the death receptor pathway, bcl-2, bcl-xL and bax in the mitochondrial pathway, caspase-12 in the endoplasmic reticulum pathway and caspase-3, caspase-6 and p53 as downstream effectors. Carbachol and arecoline attenuated the effects of homocysteine on genes in the death receptor pathway, in the mitochondrial pathway and in the downstream pathway. Atropine could reverse all of the effects of arecoline.
CONCLUSIONActivation of NNMR by carbacol and arecoline inhibits homocysteine-induced endothelial cell apoptosis mainly through regulation of death receptor pathway, mitochondrial pathway and downstream effectors.
Animals ; Aorta ; cytology ; Apoptosis ; Apoptosis Regulatory Proteins ; metabolism ; Arecoline ; Carbachol ; Cell Cycle ; Endoplasmic Reticulum ; metabolism ; Endothelial Cells ; cytology ; drug effects ; Homocysteine ; adverse effects ; Mitochondria ; metabolism ; Rats ; Receptors, Muscarinic ; metabolism
6.Meta-analysis of internal fixation versus hip replacement in the treatment of trochanteric fractures.
Jian-Bin DONG ; Zhi-Yong WANG ; Hao LU ; Yuan TIAN ; Xin-Rui WANG ; Zhi-Qiang ZHANG
China Journal of Orthopaedics and Traumatology 2015;28(3):245-251
OBJECTIVETo compare the efficacy of internal fixation (including PFNA and PFN) versus hip replacement (including FHR or THA) in the treatment of trochanteric fractures in adults.
METHODSReports of studies using randomized controlled trials (RCT) to compare internal fixationg with hip replacement in the management of intertrochanteric fractures were retrieved (up to January 1, 2013) from the Cochrane Library, PUBMED Data, CNKI (China National Knowledge infrastructure), Elsevier, the Chinese Biomedical Database, Wanfang Data, and manually. Methodological quality of the trials was critically assessed, and relevant data were extracted. Statistical software RevMan 5.0 was used for data-analysis.
RESULTSSeven articles were included in the meta-analysis. The results showed that,compared internal fixation with hip replacement,there were statistical significance in the duration of surgery time [WMD = -2.66, 95% CI (-5.25,-0.06), P = 0.05], intra-operative blood loss [WMD = -24.20, 95% CI (-30.38, -18.02), P < 0.000 01], hospital stays time [WMD = -4.72, 95% CI (-5.18, -4.25), P < 0.000 01], bearing load time [WMD = -29.54, 95% CI (-30.77, -28.31), P < 0.000 01], total complications rate [WMD = 0.15, 95% CI (0.11, 0.22), P < 0.000 01], the good rate of Harris scores [WMD = 1.09, 95% CI (0.54,1.32), P < 0.05]. However, there were no statistical significance in the rate of deep venous thrombosis [WMD = 1.09, 95% CI (0.47, 2.55), P > 0.05]. CON- CLUSION: Hip replacement (containing FHR or THA) for the treatment of intertrochanteric fractures is superior to internal fixa- tion in regards to the duration of surgery time, the mean duration of hosipital stays, mean post-operative down time, intra-opera- tive blood loss, the rate of post-operative good Harris scores. But there is not enough evidence to show any difference between hip replacement (containing THA or FHR) and internal fixation in regards to the rate of deep venous thrombosis. However, internal fixation for the treatment of intertrochanteric fractures is superior to hip replacement (containing FHR or THA) in regards to total complications rate.
Arthroplasty, Replacement, Hip ; methods ; Fracture Fixation, Internal ; methods ; Hip Fractures ; surgery ; Humans
7.Effect of acupuncture at different acupoints on electric activities of rat cerebellar fastigial nuclear.
Chao LIANG ; Yuan WANG ; Bin XU ; Zhi YU
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(4):476-480
OJECTIVETo explore whether different acupuncture signals were afferent to the cerebellar fastigial nucleus (FN) neuron and to find out their corresponding effect features through observing the effect of spontaneous discharge of cerebellar FN neuron by needling at different acupoints.
METHODSTotally 120 male SD rats were anesthetized by 20% urethane and their right cerebellar FN were positioned (AP 11. 6 mm, RL 1. 0 mm, H 5. 6 mm). Extracelluar discharge was recorded by glass microelectrode (AP: -11. 6 mm, R: 1. 0 mm, H: 5.7 -7. 0 mm), using extracellular microelectrode recording method, recording the spontaneous discharge of cerebellar FN neurons as a baseline. Random order of needling at zusanli (ST36), quchi (Lil1), weishu (BL21), and zhongwan (CV12) were compared with the baseline before each acupuncture. Their effects on the discharge of cerebellar FN neurons were observed and compared with baselines.
RESULTSThe frequency of FN neuronal discharge could be elevated by needling at zusanli (ST36), quchi (LiI), weishu (BL21), and zhongwan (CV12) (P <0. 01, P <0. 05). The response rate of needling at Zhongwan (CV12, 56. 00%) was higher than that of needling at Zusanli (ST36), Quchi (Ll1), and Weishu (BL21) (35. 00%, 34. 62%, 36. 63%, respectively) with statistical difference (P <0. 05). The response rate of needling at zhongwan (CV12) was obviously higher than that of needing at other points (F = 2. 101, P < 0. 05).
CONCLUSIONSNeedling at zusanli (ST36 ), quchi (Lil), weishu (BL21), and zhongwan (CV12) could elevate the spontaneous discharge frequency of cerebellar FN neurons. Needling at Zhongwan (CV12) had advantageous roles in regulating cerebellar FN.
Acupuncture Points ; Acupuncture Therapy ; Animals ; Cerebellar Nuclei ; physiology ; Male ; Microelectrodes ; Neurons ; Rats ; Rats, Sprague-Dawley
10.Diagnosis and treatment of peliosis hepatis
Quan SUN ; Qiang YUAN ; Guangxing MENG ; Zhi DU ; Yijun WANG
Chinese Journal of Digestive Surgery 2015;14(2):167-169
Peliosis hepatis is a rare benign hepatic vascular disease.There is the lack of specific clinical features and preoperative diagnosis.A patient with intermittent liver area pain was admitted to the Third Central Hospital of Tianjin in April 2014.The patient with space-occupying lessions of the right lobe of liver was preliminarily diagnosed as with hepatocellular tumor or vasogenic tumor by computed tomography and B ultrasound examinations and then received liver resection combined with cholecystectomy.The result of postoperative pathological examination confirmed peliosis hepatis with adenomatous hyperplasia of liver cells.The patient was followed up till October 20,2014 without recurrence.