1.Hydrogen-rich water prepared by hydrogen rods:an experimental study
Qingjian HUANG ; Shuangshuang ZHANG ; Jibin SHA ; Lin ZHANG ; Chenggang ZHANG
Military Medical Sciences 2016;40(8):646-650
Objective To verify the efficiency and stability of hydrogen-rich water preparation with hydrogen-rich rods. Methods ①Seven firenew hydrogen-rich rods were separately placed in seven plastic bottles, each filled with distilled water and soaked for 6 h, before the hydrogen concentration of the water was measured.This process was repeated 10 times.②After the hydrogen-rich rods with the strongest and weakest hydrogen product capacity were removed, the remaining 5 hydrogen-rich rods were placed separately into 5 plastic bottles filled with distilled water,put in a water bath pot at 20,40 and 60℃, respectively, and kept for 2, 4, 6, 8 and 10 h, respectively.Then, the hydrogen concentration, oxidation-reduction potential(ORP),and dissolved oxygen concentration(DO) were measured at various time points.③In order to determine the hydrogen emission rate from the hydrogen-rich water, the hydrogen-rich rods were constantly kept in some samples and the others were removed.All the sample bottle caps were kept open during the experimental process, and the hydrogen concentration was measured at such time points as 0, 10 and 30 min, 1, 2, 5, 12, 24, 30, 48 and 72 h, respectively.Results ①The hydrogen-rich rods used in this study could well meet the requirements.②When the environment temperature was kept constant, the hydrogen concentration of the water was increased with the soaking time of the hydrogen-rich rods, and the ORP of the water was reduced.However, the DO of the water was decreased with the rise of the environment temperature.③When the hydrogen-rich water was kept in opened plastic bottles with a 25 mm oral diameter, the hydrogen concentration of the samples with the hydrogen-rich rods reserved was almost about 0.50 ppm until 72 h, and that of the others was reduced to almost 0 ppm.Conclusion Our results demonstrate that the hydrogen-rich rods test is a simple and effective method for preparing hydrogen-rich water, which will be an valuable and useful method for using hydrogen-rich water in health promotion and prevention of chronic diseases.
2.Design of a ECG Telemonitoring System in Dual Processor Based on 3G
Li SONG ; Qingjian MENG ; Guangyu ZHANG ; Daiqing ZHAI ; Weifang CAO
Chinese Journal of Medical Physics 2010;27(2):1758-1761
Objective: This paper proposes a design of portable ECG monitor in dual processor based on 3G, analyzes the design for function module. Methods: Bases on 3G, network, multimedia technology, the monitor equips an TMS302VC5402 micro-processor as its main controller, digital signals processor BSP15 process multimedia message,and 3G communication module HC25 to realize the wireless communication. Results: The system has the functions of ECG display and automated analysis and diagnosis, which can detect and send the data to monitoring center of hospital within the coverage of 3G network.The system can help a patient far away from the hospital save herself(or himself) by the two-way video technology. Conclusions: The real-ization of this system can help doctor real-time, full-scale, no the region restrainedly to obtain the ECG message of patient. The system is suitable for the patient of coronary.The 3G leads the ECG information to deliver more rapidly and conveniently.
3.Effects of calcitonin gene related peptide in cisterna magna on cerebral vasospasm after experimental subarachnoid hemorrhage in rats
Qingjian WU ; Shuyin SUN ; Daqing SONG ; Yanbo ZHANG ; Chengjun YAN ; Baoliang SUN
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(6):489-492
Objective To explore the effects of application calcitonin gene related peptide(CGRP) in cisterna magna on cerebral vasospasm after experimental subarachnoid hemorrhage (subarachnoid hemorrhage,SAH) in rat models.Methods 64 male Wistar rats were randomly divided into 4 groups.Group A was normal control group.After the subarachnoid hemorrhage models were established,group B,C,D were given normal saline,CGRP and adenovirus CGRP through cisterna magna respectively.White blood cells in cerebrospinal fluid were detected by automatic blood analyzer,CGRP activity was detected by enzyme linked immunosorbent assay,circulating endothelial cells were observed through laser scanning confocal microscope and parietal cortex regional cerebral blood flow were observed by laser doppler flowmeter.Basilar artery vasospasm and arterial blood gas analysis were detected by digital subtraction angiography and blood gas analyzer respectively.Results Before and after administration,there were no statistical differences in white blood cells and artery blood gas among the 4 groups (both P> 0.05).After administration 48 h,compared with group A,concentrations of CGRP in cerebrospinal fluid group B (0.006±0.002) did not increase (P>0.05),but increased 200 times in Group C ((1.160±0.170) nmol/L,P<0.05)and nearly 400 times in group D ((2.071±0.412) nmol/L,P<0.05).Peripheral blood circulating endothelial cells count:after administration 48 h,group C((5.56±0.61) ind/0.9 μL) was less than in group B((9.94± 0.73) ind/0.9 μL).Group D((5.16±0.61) ind/0.9 μL) was less than group C(P<0.01).Regional cerebral blood flow:after administration,compared with group B,cerebral blood flow of group C and group D increased,and the differences were both statistically significant (P<0.01).Basilar artery diameter was detected after administration 12 h,group D ((1.000±0.025) mm) was 13% bigger than group B ((0.670±0.028)mm,P<0.05),3% bigger than group C ((0.900±0.023) mm) (P>0.05).Conclusion Cerebral vasospasm after SAH can be effectively improved by administration CGRP in cisterna magna.Adenovirus CGRP effect is better than CGRP.
4.Application of flexible ambrosia for body weight control among youths
Wenjing GONG ; Qingjian HUANG ; Dawen GAO ; Wubin QU ; Zhihui LI ; Yiming LU ; Yan GAO ; Peijin LI ; Chenggang ZHANG
Military Medical Sciences 2016;40(8):651-656
Objective To evaluate whether flexible ambrosia,by which people can take special prebiotics instead of dining to alleviate their sense of hunger is a healthy, safe and effective weight loss method by analyzing the effects of flexible ambrosia on body weight, body composition, physiological and chemical indexes of young volunteers.Methods Young volunteers were tested on flexible ambrosia for seven days using special prebiotics instead of normal food.Body weight, waist circumference, body composition and blood biochemical indexes ( blood pressure, blood glucose, liver function, renal function, blood electrolyte, and blood lipid ) were measured and recorded before and after the test respectively.The volunteers′subjective feelings ( hunger, energy, fatigue, etc) were recorded during the test every day by way of e-form records.Results All volunteers of the flexible ambrosia test reduced their body weight, body mass index (BMI), waist circumference, visceral fat index (VAI) and body fat rate (Fat,%)significantly (P<0.01)in seven days, while the body water rate, muscle mass, body protein and bone did not significantly change or rise.There was no significant functional abnormity of the liver kidney, or blood electrolytes and blood lipid.All volunteers were in good physical condition, high-spirited and slept well, high quality sleep, without any obvious hunger and fatigue response in seven days.Conclusion Flexible ambrosia seems to be a healthy, safe and effective method, and provides an important scientific basis and reference for weight loss in the military.
5.The diagnostic value of six-slice coronal reformation in patients with acute midepigastric pain
Huaming ZHANG ; Qingjian HONG ; Ming GE ; Zheng QU ; Jianwu NIU ; Cuihong YUAN ; Yuqing HE ; Zhenyu LIU
Journal of Practical Radiology 2017;33(12):1877-1879,1886
Objective To evaluate the diagnostic value of six-slice coronal reformations in patients with acute midepigastric pain. Methods A total of 974 patients with acute midepigastric pain were included in this study and divided into group A(coronal reformation)and group B(non-coronal reformation).For group A,reconstructed coronal and oblique-coronal images were acquired.A comprehensive diagnosis was made based on coronal reformations and axial planes.Anatomical nomenclature was adopted,including kidney-ureter plane,abdominal aorta plane,superior mesenteric artery plane,ascending colon-appendix plane,stomach-cholecyst plane and colon-small intestine plane.For group B,the diagnosis was made based on axial planes.Finally,a comprehensive analysis was made,missed cases in these two groups were counted and compared,and statistical analysis was performed using the SPSS software(version SPSS V17).Results For group A,the missed diagnosis was made in 12 cases(1.23%)and it was 53 cases(6.58%)for group B.There was a statistically significant difference between two groups(P<0.05).Conclusion Combined with axial planes or oblique coronal reformations,six-sclice coronal reformation can reduce the the rate of missed diagnosis of acute midepigastric pain.
6.Association of pretreatment thrombocytosis with prognosis in ovarian cancer: a systematic review and meta-analysis.
Qingjian YE ; Juan CHENG ; Minjuan YE ; Dong LIU ; Yu ZHANG
Journal of Gynecologic Oncology 2019;30(1):e5-
OBJECTIVE: To investigate the association between pre-treatment thrombocytosis and prognosis in patients with ovarian cancer (OC). METHODS: PubMed, EMBASE, and the Cochrane Library were searched for articles regarding the prognosis of OC patients with pre-treatment thrombocytosis by the end of March 2018. Pooled estimates for overall survival (OS) and progression-free survival (PFS) events were calculated as hazard ratios (HRs) either on a fixed or random effect model by Stata 13.0 software. Funnel plot and Egger's test were applied to evaluate publication bias and sensitivity analyses were undertaken to estimate the strength of outcomes. RESULTS: Eleven studies that met the inclusion criteria were enrolled, including a total of 4,953 patients. Pooled results showed that pre-treatment thrombocytosis was significantly associated with OS (HR=1.722; 95% confidence interval [CI]=1.437–2.064) and PFS (HR=1.452; 95% CI=1.323–1.593) in the cohort. Significant correlation was found in OS and PFS between pre-treatment thrombocytosis and both epithelial OC (all stages and differentiation degrees of OC) and advanced epithelial OC (III or IV) by subgroup analyses, which were performed according to publication year, country, case numbers, OC category, International Federation of Gynecology and Obstetrics stage, and cut-off value. However, subgroup analyses indicated no significant correlation between pre-treatment thrombocytosis and OS for patients with high-grade serous (poorly differentiated or undifferentiated) OC (HR=1.220; 95% CI=0.946–1.573; p=0.125). Egger's test demonstrated no obvious publication bias in the articles enrolled in this study (OS: p=0.226; PFS: p=0.071). CONCLUSION: Pre-treatment thrombocytosis might be taken as an independent prognostic indicator for patients with OC.
Cohort Studies
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Disease-Free Survival
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Gynecology
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Humans
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Obstetrics
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Ovarian Neoplasms*
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Prognosis*
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Publication Bias
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Publications
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Thrombocytosis*
7.Expression of voltage-gated sodium channel Nav1.5 in non-metastatic colon cancer and its associations with estrogen receptor(ER)-βexpression and clinical outcomes
Peng JIANHONG ; Ou QINGJIAN ; Wu XIAOJUN ; Zhang RONGXIN ; Zhao QIAN ; Jiang WU ; Lu ZHENHAI ; Wan DESEN ; Pan ZHIZHONG ; Fang YUJING
Chinese Journal of Cancer 2017;36(12):694-703
Background: Voltage-gated sodium channel 1.5 (Nav1.5) potentially promotes the migratory and invasive behaviors of colon cancer cells. Hitherto, the prognostic significance of Nav1.5 expression remains undetermined. The present study aimed to explore the associations of Nav1.5 expression with clinical outcomes and estrogen receptor-β (ER-β) expression in non-metastatic colon cancer patients receiving radical resection. Methods: A total of 269 consecutive patients with pathologically confirmed stages Ⅰ–Ⅲ colon cancer who under-went radical resection were selected. Nav1.5 and ER-β expression was detected by using immunohistochemistry (IHC) on tissue microarray constructed from paraffin-embedded specimens. IHC score was determined according to the percentage and intensity of positively stained cells. Statistical analysis was performed with the X-tile method, k coef-ficient, Chi square test or Fisher's exact test, logistic regression, log-rank test, and Cox proportional hazards models. Results: We found that Nav1.5 was commonly expressed in tumor tissues with higher mean IHC score as compared with matched tumor-adjacent normal tissues (5.1 ± 3.5 vs. 3.5 ± 2.7, P < 0.001). The high expression of Nav1.5 in colon cancer tissues was associated with high preoperative carcinoembryonic antigen level [odds ratio (OR) = 2.980;95% confidential interval (CI) 1.163–7.632; P = 0.023] and high ER-β expression (OR = 2.808; 95% CI 1.243–6.343;P = 0.013). Log-rank test results showed that high Nav1.5 expression contributed to a low 5-year disease-free survival (DFS) rate in colon cancer patients (77.2% vs. 92.1%, P = 0.048), especially in patients with high ER-β expression tumor (76.2% vs. 91.3%, P = 0.032). Analysis with Cox proportional hazards model demonstrated that high Nav1.5 expression [hazard ratio (HR) = 2.738; 95% CI 1.100–6.819; P = 0.030] and lymph node metastasis (HR = 2.633; 95% CI 1.632–4.248; P < 0.001) were prognostic factors for unfavorable DFS in colon cancer patients. Conclusions: High expression of Nav1.5 was associated with high expression of ER-β and indicated unfavorable oncologic prognosis in patients with non-metastatic colon cancer.
8.Development of Health Intelligent Management Cloud Platform on Maternal and Infant Monitor
Qingjian MENG ; Li SONG ; Xiaoyan WANG ; Shizhong FAN ; Linlin CHE ; Guangyu ZHANG ; Shigang WANG
Chinese Journal of Medical Instrumentation 2017;41(1):20-22
Objective Using the wireless mobile communication technology and Internet technology, cloud platform to build maternal and infant health intel igent management. Methods Using the J2EE technology based on B/S three-tier to build health intel igent management cloud platform. Vital signs parameters (such as blood pressure, blood oxygen saturation, heart rate, breathing, pulse, temperature, instantaneous heart rate of pregnant women,etc) achieved the real-time detection and wireless remote transmission. Results Realized the digitization management of maternal health information, health records, health analysis;Through this platform to realize the consulting between the patient and doctor online. Conclusion The Pregnant women can upload and download various vital signs parameters at any time to check the personal health analysis report through mobile phone client.
9.Risks of biosafety and prevention strategies in medical and pharmaceutical research laboratories
Mo CHEN ; Jiayi TAO ; Hongxu WANG ; Qingjian ZHANG
Chinese Journal of Comparative Medicine 2024;34(4):109-113
Medical and pharmaceutical research laboratories encompass a wide range of study areas.They utilize diverse materials ranging from animals and microorganisms to nanoparticles and other substances.However,as laboratory waste increases,more biosafety risks are created.In this context,we outlined the safety risks associated with gene amplification,gene recombination,research involving pathogenic microorganisms,nanotechnology,animal experiments,genetically modified animals,and experimental waste.Additionally,we here in propose preventive measures to mitigate laboratory biosafety risks.These measures primarily involve the development of strict legal frameworks,improvement of hardware infrastructure,strengthening of safety awareness,and enhancement of education and training programs.
10.Alkaloids and anthraquinones from branches and leaves of uvaria kurzii.
Ziming LV ; Qingjian ZHANG ; Ruoyun CHEN ; Dequan YU
China Journal of Chinese Materia Medica 2011;36(9):1190-1192
OBJECTIVETo investigate the chemical constituents of the branches and leaves of Uvaria kurzii.
METHODThe compounds were isolated and purified by silica gel and Sephadex LH-20 column chromatographic methods. Their chemical structures were elucidated on the basis of physicochemical properties and spectral data.
RESULTNine compounds were isolated and identified as: bidebiline A(1), annobraine (2), oxoputerine (3), atherospermidine (4), liriodenine (5), physcion (6), questin (7), rubiadin 3-methyl ether (8), emodin (9).
CONCLUSIONCompound 1-4, 6-9 were isolated from the genus Uvaria for the first time. Compound 3-5 showed inhabitation activities against tumor cell lines A549, Bel7402, BGC823, HCT-8, A2780, respectively.
Alkaloids ; chemistry ; Anthraquinones ; chemistry ; Aporphines ; chemistry ; Emodin ; analogs & derivatives ; chemistry ; Magnetic Resonance Spectroscopy ; Plant Leaves ; chemistry ; Plant Stems ; chemistry ; Uvaria ; chemistry