1.Flexible sensors and their application in healthcare
Xuesi ZHOU ; Ronghua ZHONG ; Tianhui WANG
Military Medical Sciences 2015;(11):876-880
The traditional approach to accessing healthcare information restricts the further development of healthcare services,thus unable to meet the growing needs of individual healthcare.The flexible sensor technology has emerged along with the development of new materials,machinery and manufacturing technology.As a result,textiles,accessories,human skin and even internal body organs can be integrated with various sensors.The popularization of flexible sensors provides new methods for monitoring health,improving therapeutics,investigating disease status and building the human-machine in-terface.Through a systematic investigation of literature,this paper reviews the applications of flexible sensors in health-care,discusses the key technologies,and introduces the common materials and manufacturing technology.
2.Systematic review of transfusion strategies for cardiac surgery.
Qinjuan WU ; Ronghua ZHOU ; Bin LIU
Journal of Biomedical Engineering 2014;31(2):319-326
This paper is aimed to assess the effects of red blood cell (RBC) transfusion on clinical outcomes in cardiac surgery. Trials were identified by computer searches of the Pubmed, MEDLINE, Cochrane Library (Issue 10, 2012), from January 1980 to October 2012. References in identified trials and review articles were checked and experts contacted to identify any additional trials. The homogeneous randomized controlled trials (RCTs) were analyzed with RevMan 5.1 software. Five trials involving a total of 1,203 patients were identified. The results of meta-analyses showed that restrictive transfusion strategies reduced the risk of receiving a RBC transfusion (MD = - 1.46, 95% CI -1.18(-) -1.1) and the volume of RBCs transfusion (RR = 0.69, 95% CI 0.53-0.89). No significant difference was noted between the two strategies in terms of mortality, adverse events and hospital or intensive care length of stay. Based on the results mentioned above, one can draw a conclusion that restrictive transfusion strategies reduced the risk of receiving RBC transfusion and the volume of RBCs transfused. Restrictive transfusion strategies did not appear to impact on the rate of adverse events and hospital or intensive care length of stay, compared to liberal transfusion strategies.
Cardiac Surgical Procedures
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adverse effects
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Erythrocyte Transfusion
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Humans
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Randomized Controlled Trials as Topic
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Treatment Outcome
3.Effect of venlafaxine on learning and memory in rats model with vascular demential
Yingchun XIAO ; Nan LIU ; Yican ZHOU ; Ronghua CHEN
Chinese Journal of Geriatrics 2012;31(11):1027-1030
Objective To investigate the effect of venlafaxine on learning and memory ability in rats with vascular dementia(VD).Methods Totally 90 Wistar rats were divided into sham-operation group,model group and treatment group (n=30 for each).The VD rat model was established by modified pulsinellis 4-vessel occlusion (4 VO).Rats in the sham-operation group and model group were administered with gastric perfusion of distilled water.Rats in the treatment group were administrated with gastric perfusion of Venlafaxine at 15 mg/kg per day for 4 weeks from the 2nd day after the modeling.The one-way avoidance test was performed to study the learning-memory ability of each group.The contents of norepinephrine,5-hydroxytryptamine and BDNF in the hippocampus and cortex of rats were observed.Results Model group demonstrated a decrease in the percentage of one-way avoidance test (50.3±6.2 vs.92.3±5.6,P<0.01) as compared with sham-operation group,and this value was increased in treatment group (62 2±4.6).Compared with the sham-operation group,the contents of NE and 5-HT in the hippocampus [(226±34) pg/g and (340±40) pg/g],and cortex [(601±66) pg/g and (657±43) pg/g] in rat brains of model group were decreased (P<0.01),while increased in treatment group [(264±45) pg/g and (379±42)pg/g,(665±68) pg/g and (798±51)pg/g,P<0.05].The OD value of BDNF in the hippocampus (0.495±0.041) and cortex (0.488±0.042) were increased (P<0.05) in model group,and in treatment group,BDNF levels were more higher (0.579±0.044 and 0.578±0.06/4,P<0.05).Conclusions The content of brain monoamine neurotransmitters are decreased in rats with VD,while venlafaxine can improve the learning memory ability in model rats through increasing the levels of 5-HT,NE and BDNF in hippocampus and cortex.
4.Value of gas assembling in the recess below the xiphoid in CT diagnosing early gastrointestinal perforation
Ronghua WANG ; Yonggang ZHANG ; Jun CHEN ; Yicheng ZHOU
Chinese Journal of Radiology 2001;0(07):-
Objective To discuss CT examination in the diagnosis of gastrointestinal perforation (GP). Methods All CT data of 13 adult patients with GP were reviewed retrospectively. Results In all 13 cases,gastric perforation occurred in 5 cases,duodenal perforation in 7,and traumatic duodenal avulsion in 1.CT findings of GP included gas accumulation under the recess of xiphoid,gas accumulation in the area of lesser omentum,gas accumulation under the recess of peritoneal cavity,and seroperitoneum. Conclusion As a non-invasive examination means for abdomen,CT examination can discover whether there is dissociative gas or not and estimate the amount of gas in abdomen more rapidly and exactly.CT can also estimate the position of perforation elementarily.The recess under xiphoid is the first place where the dissociative gas assembles after gastrointestinal perforation.
5.The Effect of Atorvastatin on the Male Hypertensive Patients with Erectile Dysfunction
Shuyin WEN ; Fangming ZHOU ; Ronghua OU ; Xiaojian DENG
Chinese Journal of Hypertension 2007;0(05):-
0.05). After treatment the incidence of ED in therapy group was decreased to 46.3% vs control group of 63.7%(P
6.Effect of Ornidazol on acute pericoronitis of wisdom tooth
Lin-hu WANG ; Hu-zhong WANG ; Jia-ping GUO ; Qingshan DONG ; Xiang WANG ; Ronghua ZHOU
Chinese Journal of Rehabilitation Theory and Practice 2004;10(4):237-237
ObjectiveTo observe the effect of Ornidazol on acute pericoronitis of wisdom tooth (PWT).Methods125 patients with PWT were randomly divided into the experiment group (63 cases, treated with Ornidazol) and control group (62 cases, treated with Metronidazole). The curative effect was observed when teeth extracted.ResultsThe effective rate of the experiment group was 95.2%, that of control group was 82.2%. There was a significant difference between two groups (P<0.05).ConclusionOrnidazol has an obvious effect on acute PWT.
7.Effects of constant magnetic field on proliferation, apoptosis and nitric oxide secretion of rat endothelial pro-genitor cells intervened by C-reactive protein
Hexiang CHENG ; Xudong XU ; Rongqing ZHANG ; Ronghua LUAN ; Wenyi GUO ; Haichang WANG ; Zhentao YU ; Lion ZHOU
Chinese Journal of Physical Medicine and Rehabilitation 2009;31(2):88-90
Objective To investigate the effects of constant magnetic field (CMF) on proliferation, apopto-sis and nitric oxide (NO) secretion of rat bone marrow-derived endothelial progenitor cells (EPCs) intervened by C-reactive protein (CRP). Methods EPCs were isolated from rat bone marrow by density gradient centrifugation and cultured on fibronectin-coated dishes. The cells were divided into five groups, i. e., control group, CRP (12 μg/ml) group, CRP plus CMF (0.1, 0. 5, 1.0 mT) groups. Samples were collected 24 hours after incubation. Cell proliferation was measured by MTT chromatometry. Apoptosis rate was detected by flow-cytometry. NO content of culture medium was measured by nitrate reductase method. Results As compared with control group, cell prolifer-ation in CRP group reduced significantly (0. 265±0. 008 vs 0. 316±0. 011, P < 0.05), NO secretion also de-creased significantly [(22.7±4.5) μmol/L vs (37.6±3.8) μmol/L, P < 0.05], cell apoptosis rate elevated sig-nificantly [(10.8±0. 8) % vs (4.2±0.5)% ,P < 0.05]. Cell proliferation in CRP plus 0. 5 mT or 1.0 mT CMF group (0. 295±0. 009,0. 302±0. 010) were much more than those in CRP group (P<0.05), NO secretion contents [(28.3±4.9) μmol/L, (29.2±5.6) μmol/L]were also much more than those in CRP group (P < 0.05) , apopto-sis rate [(7.4±0.5)% ,(6.9±0.6)%]was significantly lower than that in CRP group (P <0.05). Conclusion CMF at intensity of 0.5 mT and 1.0 mT can antagonize the effects of CR, promote proliferation of EPCs and secretion of NO and inhibit apoptosis rate of EPCs.
8.Effect of Polyphenols fromRubus suavissirnuS. Lee on Spontaneous Hypertensive Rats
Ronghua JIANG ; Xiaoli HOU ; Shuo WANG ; Xiaolei ZHOU ; Xiaomei GONG ; Jianhua MIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(7):1479-1485
This article was aimed to study the effect of polyphenols fromRubus suavissirnusS. Lee (RSLP) on spontaneous hypertensive rats (SHR) and to explore its mechanism of anti-hypertensive. The water extraction of RSLP was prepared. And the polyphenols was extracted with macroporous resin. The non-invasive blood pressure analysis system was used to detect the blood pressure. SHR model was selected to study the anti-hypertensive effect. The 16 normal Wistar rats were randomly divided into the control group and the normal RSLP high-dose group (RSLP-NH). The 40 SHR were randomly divided into the model group, Captopril group, RSLP-L group, RSLP-M group and RSLP-H group. SBP, DBP, HR, body weight and organ index were observed after the drug administration for 8 weeks and drug withdrawal for 2 weeks. The contents of SOD, MDA, GSH-Px, NO, NOS and ANP in serum were measured. The results showed that the blood pressure of SHR was significantly higher than that of the control group, which can be used for anti-hypertensive studies. Each RSLP group can obviously reduce the SBP and DBP of SHR (P < 0.05), but it had no effect on HR (P > 0.05). RSLP can elevate GSH-Px, SOD levels and reduce the activity of MDA (P < 0.05). RSLP can reduce NO, NOS and ANP contents in serum (P < 0.05). It was concluded that RSLP can significantly reduce the SBP and DBP of SHR, but it had no significant effect on HR. It can increase the activity of GSH-Px, SOD, NO, NOS levels, and reduce the contents of MDA, ANP in serum. It had certain inhibitory effect on the left ventricular hypertrophy.
9.Influence of vitrified versus fresh embryo transplantation on the growth and development of mouse offspring
Jingwei ZHOU ; Ronghua WU ; Li GUO ; Qin SUN ; Xiaomeng DING ; Liucai SUI ; Li CHEN
Journal of Medical Postgraduates 2015;(6):569-573
Objective Assisted reproductive technology ( ART) is associated with an increased incidence of offspring de-fects.The aim of this study was to investigate the impact of embryo vitrification in in vitro fertilization ( IVF) on the growth and devel-opment of the offspring by comparing the development status of mouse offspring from fresh embryo versus vitrified embryo transplanta-tion. Methods This study included three groups of mouse offspring , from natural fertilization ( n=12 ) , fresh embryo transplanta-tion (FET, n=9), and vitrified embryo transplantation (VET, n=9).We compared the body weight and body fat content in the sex-ually mature stage among the three groups of mice . Results No obvious differences were found in the morphology of the embryos be-tween the FET and VET groups .The body weight of the mouse offspring was significantly higher in the VET than in the natural control group at 0 postnatal (PN) week (P<0.01) and 12 PN weeks (P<0.01), and so was it in the FET group than in the control at 0 PN week (P<0.01) and 6 PN weeks (P<0.05).The body fat content at sexual maturity was remarkably higher in the VET than in the FET and control groups ([9.32 ±4.34] vs [5.24 ±2.56] and [2.80 ± 0.48] g, P<0.05), and so was the muscle content in the VET than in the control ([33.77 ±4.22] vs [27.50 ±1.79] g, P<0.01). Conclusion In IVF, fresh embryo transplantation has less interference with the growth and development of mouse offspring than vitri-fied embryo transplantation .
10.Comparative Study on Naotaifang Containing Serum and Plasma Proteomics (Peptide) by Proteomics
Guozuo WANG ; Huibin ZHU ; Mei YANG ; Yu ZHOU ; Ronghua QIAN ; Yaqiao YI ; Ziwei YUAN ; Jinwen GE
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(7):1505-1514
Through comparative study on Naotaifang containing serum and plasma proteomics (peptide), this article revealed differential proteins (peptides) in the Naotaifang. The characteristics of differential proteins were identified with mass spectrometry. It provides scientific evidences for the pharmacodynamic material basis and Chinese herbal medicine plasma pharmacological method development in the exploration of Naotaifang. A total of 20 healthy adult SD rats were randomly divided into the control group, Naotaifang treatment group according to their weights. Ten rats in each group. Intragastric administration of medication was given for seven consecutive days. Before surgery, rats were fed with water but without food. One hour after the last drug administration, 10% chloral hydrate was injected for intraperitoneal anesthesia. Blood was taken through the common carotid artery. Serum and plasma samples were made after blood was taken from each rat. Serum and plasma samples of five rats were randomly selected from each group. And the two-dimensional electrophoresis (2-DE) technique was used in the comparative study of serum pro-teomics (peptide). The 300 DPI scanning and PDQuest 7.3.0 were used in the analysis. The ESI-MS/MS was used to identify important differences in proteins and screen characteristic serum and plasma protein. The results showed that 20 differential proteins of 5 plasma samples were identified. There were 15 types of proteins expressing up-regulation and 5 types expressing down-regulation. Comparative analysis on the 2-DE gel pictures of Naotaifang containing serum, 19 differential proteins of 5 plasma samples were identified, among which 15 types of proteins express up-regulation and 4 down-regulation. Comparative analysis on the 2-DE gel pictures of Naotaifang containing serum and Naotaifang containing plasma showed that 24 differential proteins of 5 plasma samples were identified, among which 9 types of proteins express up-regulation and 15 down-regulation. The highly expressed proteins were selected to MALDI-TOF-MS between Naotaifang containing serum and Naotaifang containing plasma. There were six successful-ly identified proteins, which were inter-alpha trypsin inhibitor, heavy chain 3, group-specific component, comple-ment factor B, Receptor Complexed with A Heterodimeric Fc, isoform CRA-d, Transferrin. It was concluded that protein with obvious changes in the Naotaifang containing serum and plasma may be related with fibrinolysis and an-ticoagulant. These proteins are involved in angiogenesis, inflammation and other pathological regulations of physiolog-ical processes. They are of great significance in the study of effective target and its signal transduction pathway of Naotaifang.