1.Development of plateau personal physiological parameters monitor
Huiling ZHOU ; Xiuzhen DONG ; Bin LI ; Guosheng YANG ; Chun JIAO
Chinese Medical Equipment Journal 1993;0(06):-
The plateau personal physiological parameters monitor can be applied to casualty rescue at peacetime and wartime and trainings of troops in the plateau. With the function of telemering, the monitor can give realtime data of O2Sat, pulse and temperature when the subject is in an environment such as the plateau or the one of high and cold.
2.Diagnostic Value of Video-Electroencephalogram in Children with Sleeping-Related Seizure Disorders
ying, JIAO ; zhong-dong, LIN ; guang-qian, LI
Journal of Applied Clinical Pediatrics 2004;0(09):-
Objective To evaluate the diagnostic and differentiable value of video-electroencephalogram(VEEG)in sleeping-related seizure disorder.Method Sixty-five cases with sleeping-related seizure disorders(35 suspected epilepsy and 30 suspected non-epileptic seizure)enrolled in our clinics from Jan.2005 to Jun.2006 were examined by VEEG and EEG.Results Among 35 children suspected to have the possibility of epilepsy,the epileptic discharge rate examined with VEEG was 62.86%(22/35),which were significantly higher than that by EEG was 17.14%(6/35)(P
3.Related research on corneal higher-order aberrations after different ways refractive surgery
Shu-Xi, HE ; Dong-Wei, LI ; Hua, WANG ; Dong-Qiang, LUO ; Jiao, CHEN ; Qian, LI
International Eye Science 2015;(8):1382-1384
AIM: To evaluate the changes of corneal high - order aberration (including Coma, Spab, RMSh) after laser in situ keratomileusis (LASIK) with femtosecond laser, sub- Bowman keratomileusis ( SBK ) and laser epithelial keratomileusis (LASEK). METHODS: Of 82 myopic patients ( 164 eyes ), 31 patients (62 eyes) were treated by FS-LASIK, 31 patients (62 eyes) were treated by SBK, 20 patients (40 eyes) were treated by LASEK. Sirius system was used for measuring the coma aberration, spherical aberration, and high order aberration at 1, 15d,1, 3mo after surgery. RESULTS: 1) Vision: The uncorrected visual acuity of the three groups had no differences (P>0. 05). 2) Corneal aberrations: Three kinds of surgical procedure for patients with corneal aberration had significant impact. The C7, C8, C12 and RMSh of three groups were increased significantly (P<0. 05). The C7, C8, C12 and RMSh were not recovered to preoperative levels after 3mo. But the increase of patients after FS- LASIK was smaller than the other two groups, with statistical significance (P<0. 05). CONCLUSION: Compared with SBK and LASEK, FS - LASIK has better visual acuity in the early postoperative and corneal higher-order aberrations increase is relatively small.
4.The analysis of clinical correlated factors of renal damage in henoch-schonlein purpura
yu-qing, JIAO ; si-guang, LU ; li-li, GAO ; chen, DONG
Journal of Applied Clinical Pediatrics 1986;0(01):-
Objective To study the clinical correlated factors of renal damage in henoch-schonlein purpura (HSP).Methods One hundred cases with HSP were retrospectively studied. Accoding to the urinary route examination, the patients were devided into 2 groups, HSP with (49 cases) and without renal damaged (51 cases). In addition, the group of HSP with renal damaged was further diveded into 2 groups, HSP with urinary abnormality passingly (27 cases) and persistently (22 cases). Clinical indicators were statistical analysed.Results To be compared with HSP without renal damaged, age,apread of the purpura, abdominal pain,hemorrhage of digestive tract were higher in HSP with renal damaged (P
5.Expressions of Neuron-Specific Enolase and Tumor Necrosis Factor-? Concentrations of Serum and Cerebrospinal Fluid in Children with Epilepsy and Its Significances
wei, LI ; guang-qian, LI ; zhong-dong, LIN ; ying, JIAO ; sheng-xin, JIN
Journal of Applied Clinical Pediatrics 2004;0(08):-
Objective To explore the levels of neuron-specific enolase(NSE) and tumor necrosis factor-?(TNF-?)concentrations of serum and cerebrospinal fluid(CSF) in children with epilepsy,and evaluate its relationships with neuronal damage.Methods Sixty-two epilepsy children were divided into 2 groups:severe group including 28 cases of frenquent seizures ≥3 vices or time of master single test seizures≥15 min,mild group including 34 cases of infrenquent seizures
6.Significance of detection of Tau protein and β amyloid protein levels in cerebrospinal fluid in patients with mild cognitive impairment
Wei LI ; Shenggang SUN ; Etang DONG ; Xingao WANG ; Lidong JIAO ; Chunyang LI ; Hai PENG
Chinese Journal of Rehabilitation Theory and Practice 2005;11(1):55-56
ObjectiveTo study the levels of Tau protein and β amyloid protein(Aβ) in cerebrospinal fluid(CSF) in patients with mild cognitive impairment(MCI) and their significance of diagnosis. MethodsSensitive enzyme linked immunosorbent assay were performed to detect the CSF levels of Tau protein and Aβ in 32 patients with MCI and 15 healthy controls. ResultsSignificant elevation of the level of Tau protein and decrease of the level of the Aβ were observed in patients with MCI compared with healthy controls.ConclusionThe assays of the CSF Tau and Aβprotein levels can provide valuable biological marker for the diagnoses and treatment of MCI.
7.Micro-pore structure and mechanical properties of porous titanium scaffold using 3D print technology
Chen-dong FENG ; Yu XIA ; Xiang LI ; Cheng-tao WANG
Journal of Medical Biomechanics 2017;32(3):E256-E260
Objective To study the micro-pore architecture and mechanical properties of porous titanium scaffolds with diamond molecule structure produced by 3D print technology, so as to guide the development of 3D-prinited porous titanium orthopedic implants. Methods Selective laser melting (SLM) and electron beam melting (EBM) were used to fabricate porous Ti6Al4V scaffolds with diamond molecule structure. The micro-pore architectures of those scaffolds were observed using optical microscope and scanning electron microscope (SEM), and universal material testing machine was used to conduct compressive test on the scaffolds. Results Both SLM and EBM techniques had machining error and half-melted metal particles were found on the strut surface. The relative error of strut size produced by SLM and EMB was 20.9%-35.8% and -9.1%-46.8%, respectively. The scaffold with strut width of 0.2 mm could not be produced by EBM. The compressive strength and elastic modulus of the scaffold fabricated by SLM was 99.7-192.6 MPa and 2.43-4.23 GPa, respectively. The compressive strength and elastic modulus of the scaffold fabricated by SLM was 39.5-96.9 MPa and 1.44-2.83 GPa, respectively. Conclusions The manufacturing precision of SLM is higher than that of EBM. Porosity is the main factor that affects the compressive strength and elastic modulus of the scaffolds. In the same process, with the increase of porosity, both the compressive strength and elastic modulus decrease. When the porosities are similar, the scaffolds fabricated by SLM possess higher compressive strength and elastic modulus than those by SLM.
8.Electrochemical DNA biosensors in the detection of pathogen:research advances
Shibiao DONG ; Rongtao ZHAO ; Yang LI ; Xiao LU ; Xuelin LIU ; Xiong JIAO ; Rongzhang HAO ; Hongbin SONG
Military Medical Sciences 2015;(6):480-483
Rapid detection of pathogenic microorganisms is important to the prevention and control of diseases.Com-pared with traditional approaches, electrochemical DNA biosensors present great advantages in promising rapid, portable, sensitive and cost-saving detection of pathogens.In this review, the working principle of electrochemical DNA biosensors and the progress in detection of pathogens is introduced, the latest developments of DNA tetrahedron structure and new nano materials in electrochemical DNA biosensors are reviewed, and the challenges to and prospects of development in this field are also discussed.
9.Effect of air pollution on health service demand of the elderly and middle-age patients with hypertension,cardiovascular and cerebrovascular diseases:based on analysis of data from CHARLS
Jiao SHAN ; Hongyu LI ; Guofeng LIU ; Xuan YANG ; Wei DONG ; Weiyan JIAN ; Furong DENG ; Xinbiao GUO
Journal of Peking University(Health Sciences) 2016;48(3):460-464
Objective:To study the association of air pollution with health service demand of the elderly and middle-age patients with cardiovascular and cerebrovascular diseases,and to provide a scientific ba-sis for development of environmental protection policy and health service policy of the Chinese govern-ment.Methods:This study included survey data on self-evaluated health,outpatient service demand and inpatient service demand of the patients with hypertension,heart disease and stroke in 62 cities of 1 7 provinces from China Health and Retirement Longitudinal Study(CHARLS)in 201 1 and 201 3,and com-bined it with the data on the annual concentrations of inhalable particulate matter(PM1 0 ),sulfur dioxide (SO2 )and nitrogen dioxide(NO2 )of those provinces and cities.Conditional Logistic regression was car-ried out to assess the possible effects of air pollutants on self-evaluated health and health service utiliza-tion.Results:The results showed that turning points existed in the effects of concentrations of NO2 and SO2 on the health service demand of the patients with hypertension,heart disease and stroke.The inpa-tient service demand of the hypertension patients increased with NO2 concentration when it was lower than 35.1 μg/m3 and decreased with NO2 concentration for higher value.Self-evaluated health of the patients with heart disease and stroke decreased with SO2 concentration when it was lower than 63.8 μg/m3 and increased with SO2 concentration for higher value.In addition,no evidence was found for the association between PM1 0 and health service demand.Conclusion:Air pollution may have effects on health service demand of the patients with hypertension,cardiovascular and cerebrovascular diseases,and different air pollutants at high or low concentration may have different health effects.
10.MicroRNA-378*enhances apoptosis of human mesenchymal stem cells by repressing expression of CTGF
Jun DONG ; Bohang ZENG ; Ningning LIU ; Pei MO ; Longgen XIONG ; Shiming LIU ; Jiao LI
Chinese Journal of Pathophysiology 2014;(12):2238-2242
[ ABSTRACT] AIM:To investigate the effects of microRNA-378*( miR-378*) on the survival and apoptosis of human mesenchymal stem cells ( hMSCs ) .METHODS: The expression of miR-378* was determined by microRNA arrays and quantitative real-time PCR ( qRT-PCR) .H2 O2 was used to induce hMSCs apoptosis.By transfection of miR-378*mimic or inhibitor, we up-regulated or down-regulated miR-378* expression in hMSCs.The effect of miR-378*and connective tissue growth factor ( CTGF) on hMSC survival and apoptosis were detected by MTT, LDH, caspase-3/7 and TUNEL assays.RESULTS:The expression of miR-378*was up-regulated in the old hMSCs compared with the young hMSCs.H2 O2 increased the expression of miR-378*, decreased the expression of CTGF.Up-regulation of miR-378*re-sulted in increasing apoptosis and decreasing survival of hMSCs.Conversely, down-regulation of miR-378*resulted in de-creasing cell apoptosis and increasing survival.The regulation of miR-378*on hMSC apoptosis and survival was attenuated by inhibiting the expression of miR-378* and CTGF together.Direct repression of CTGF expression inhibited the hMSC survival and increased apoptosis.CONCLUSION:miR-378*enhances apoptosis of hMSCs by repressing the expression of CTGF.