1.Practical consideration on vascular patterns in pathologic diagnosis of central nervous system tumors.
Jing ZHOU ; Guo-yi YANG ; Nan-yun LI
Chinese Journal of Pathology 2011;40(9):641-644
Astrocytoma
;
blood supply
;
pathology
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Capillaries
;
pathology
;
Central Nervous System Neoplasms
;
blood supply
;
pathology
;
Diagnosis, Differential
;
Ependymoma
;
blood supply
;
pathology
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Glioblastoma
;
blood supply
;
pathology
;
Hemangioblastoma
;
blood supply
;
pathology
;
Humans
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Hyperplasia
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Microvessels
;
pathology
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Neoplasms, Neuroepithelial
;
blood supply
;
pathology
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Oligodendroglioma
;
blood supply
;
pathology
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Paraganglioma
;
blood supply
;
pathology
2.The application of comprehensive nursing measures in interventionai therapy for deep vein thrombosis of lower extremities
Linfen HUANG ; Yanxue GUO ; Yi NAN ; Xiaohui PAN
Journal of Interventional Radiology 2009;18(12):946-948
Objective To discuss the effective nursing measures in interventional therapy for deep vein thrombosis (DVT) of lower extremities in order to improve the successful rate of the procedure and to decrease the occurrence of complications. Methods Comprehensive nursing measures, including general nursing care, specific nursing care and emergency nursing care, were employed in 63 DVT patients receiving interventional therapy. Clinical response and complications were observed. Results After the treatment, the disorder was cured in 31 cases, while excellent result was seen in 26 cases and obvious improvement in 6 cases. During the procedure, bleeding at puncture site occurred in 16 cases, pulmonary embolism in 2 cases and cerebral hemorrhage in one case. No death occurred. Conclusion Comprehensive nursing measures can effectively prevent or reduce the occurrence of complications, decrease the mortality rate. Therefore, Comprehensive nursing measures are the most helpful nursing care for DVT patients receiving interventional therapy.
3.The application of comprehensive nursing measures in interventional therapy for deep vein thrombosis of lower extremities
Linfen HUANG ; Yanxue GUO ; Yi NAN ; Xiaohui PAN
Journal of Interventional Radiology 2006;0(12):-
Objective To discuss the effective nursing measures in interventional therapy for deep vein thrombosis(DVT)of lower extremities in order to improve the successful rate of the procedure and to decrease the occurrence of complications.Methods Comprehensive nursing measures,including general nursing care,specific nursing care and emergency nursing care,were employed in 63 DVT patients receiving interventional therapy.Clinical response and complications were observed.Results After the treatment,the disorder was cured in 31 cases,while excellent result was seen in 26 cases and obvious improvement in 6 cases.During the procedure,bleeding at puncture site occurred in 16 cases,pulmonary embolism in 2 cases and cerebral hemorrhage in one case.No death occurred.Conclusion Comprehensive nursing measures can effectively prevent or reduce the occurrence of complications,decrease the mortality rate.Therefore,Comprehensive nursing measures are the most helpful nursing care for DVT patients receiving interventional therapy.
4.Effect evaluation of bedside ultrasound monitoring of left ventricular functional parameters combined with clinical indicators on veno-arterial extracorporeal membrane oxygenation
Renfeng YI ; Juan GUO ; Qing ZHOU ; Hongning SONG ; Yanxiang ZHOU ; Nan JIANG ; Xue YAO ; Ruiqiang GUO
Chinese Critical Care Medicine 2021;33(3):329-333
Objective:To explore the monitoring value of left ventricular functional parameters obtained by bedside ultrasound combined with clinically relevant indicators in patients with veno-arterial extracorporeal membrane oxygenation (VA-ECMO).Methods:A retrospective study was conducted. A total of 24 patients receiving VA-ECMO adjuvant support in Renmin Hospital of Wuhan University from June 2018 to January 2020 were selected. The bedside ultrasound was performed on the first day of ECMO support, the day before weaning, the clinical indicators before weaning were obtained. The differences in clinical indicators and the left ventricular functional parameters between the two groups of whether weaning successfully were compared; univariate Logistic regression analysis was used to screen out the related factors affecting weaning.Results:Sixteen patients were successful weaned and 8 patients failed. Compared with the weaning failure group, patients in the weaning success group required less continuous renal replacement therapy (CRRT, cases: 4 vs. 6, P < 0.05), mean arterial pressure (MAP) before weaning was higher [mmHg (1 mmHg = 0.133 kPa): 84.64±9.55 vs. 62.30±8.79, P < 0.05], and the pulse oxygen saturation (SpO 2) was also higher (0.966±0.670 vs. 0.866±0.061, P < 0.05), while vasoactive-inotropic score (VIS), serum creatinine (SCr) and serum lactic acid (Lac) were lower [VIS score: 7.27±1.42 vs. 16.93±8.52, SCr (μmol/L): 123.60±83.64 vs. 213.10±117.39, Lac (mmol/L): 1.94±0.91 vs. 5.62±5.48, all P < 0.05]. Univariate Logistic regression analysis showed that the MAP, VIS, SCr, Lac, SpO 2 before weaning were the related factors affecting weaning [odds ratio ( OR) were 0.306, -0.740, -0.011, -0.632, -4.069; 95% confidence interval (95% CI) were 1.065-1.732, 0.235-0.899, 0.979-0.999, 0.285-0.992 and 0.001-0.208; P values were 0.014, 0.022, 0.038, 0.047, 0.002]. In the weaning success group, left ventricular ejection fraction (LVEF), velocity of mitralannulus in systolic (LatSa), maximum flow velocity of aortic valve (AV-Vmax), velocity-time integral (VTI), left ventricular global longitudinal strain (LVGLS), left ventricular global longitudinal strain rate (LVGLSr) were all increased on the day before ECMO weaning compared with the first day of ECMO support [LVEF: 0.40±0.05 vs. 0.28±0.07, LatSa (cm/s): 6.81±0.91 vs. 4.62±1.02, AV-Vmax (cm/s): 104.81±33.98 vs. 64.44±16.85, VTI (cm): 14.56±3.11 vs. 7.96±1.98, LVGLS: (-8.95±2.59)% vs. (-5.26±1.28)%, LVGLSr (1/s): -0.48±0.11 vs. -0.29±0.09], whereas the ECMO flow was significantly reduced (L/min: 1.46±0.47 vs. 2.64±0.31), the differences were statistically significant (all P < 0.05). There was no significant difference in left ventricular functional parameters between the first day of ECMO support and the day before ECMO weaning in the weaning failure group. Compared with the weaning failure group, the weaning success group had higher LVEF, LatSa, AV-Vmax, VTI, LVGLS, LVGLSr on the day before ECMO weaning [LVEF: 0.40±0.05 vs. 0.26±0.07, LatSa (cm/s): 6.81±0.91 vs. 4.31±1.03, AV-Vmax (cm/s): 104.81±33.98 vs. 67.67±18.46, VTI (cm): 14.56±3.11 vs. 7.75±2.77, LVGLS: (-8.95±2.59)% vs. (-4.81±1.81)%, LVGLSr (1/s): -0.48±0.11 vs. -0.30±0.10, all P < 0.05] and lower ECMO flow (L/min: 1.46±0.47 vs. 2.20±0.62, P < 0.05). Conclusion:Bedside echocardiographic left ventricular function parameters (LVEF, LatSa, AV-Vmax, VTI, LVGLS, LVGLSr) combined with clinical indicators (MAP, VIS, SCr, Lac, SpO 2) were helpful to evaluate the therapeutic effect of patients receiving VA-ECMO support and can provide important guiding value in the selection of VA-ECMO weaning timing and the judgment of prognosis.
5.Study on moving cup method.
Bo CHEN ; Ze-Lin CHEN ; Yi GUO ; Nan-Nan YU
Chinese Acupuncture & Moxibustion 2010;30(9):777-780
Moving cup of cupping therapy is studied in the present paper systematically. According to the experiences of clinical practice, duration, speed and intensity of moving cup has been quantified. Fifteen basic manipulations have been evolved, and 10 protocols for clinical application recommended. "Moving cup according to 3 factors of duration, speed and intensity" has been advanced on the basis of acupuncture therapy. And it has been concluded that the effects of warming needling, simple cupping, scraping, massage and medication can be achieved by moving cup with different techniques and clinical protocols.
Humans
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Medicine, Chinese Traditional
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adverse effects
;
methods
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Therapeutics
;
adverse effects
;
methods
6.Recent advances in natural product induced DNA damage response in cancer cells.
Guo-wen REN ; Ya-nan NIU ; Jin-jian LU ; Yi-tao WANG ; Xiu-ping CHEN
China Journal of Chinese Materia Medica 2015;40(24):4797-4804
The DNA structures could be altered or even damaged by exogeous or endogenous factors during cell proliferation. Failure of effective and timely repair will lead to cell cycle arrest or apoptosis. By taking the advantage of the quick proliferation of cancer cells, DNA damage induction, cell cycle arrest and apoptosis promotion have become important strategies for ant-cancer chemotherapy. Previous reports showed that an array of natural compounds inhibit cancer cell proliferation by inducing DNA damage, which have therapeutic potentials for anti-cancer drug research and development.
Animals
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Biological Products
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pharmacology
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therapeutic use
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DNA Damage
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Drugs, Chinese Herbal
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therapeutic use
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Humans
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Neoplasms
;
drug therapy
7.Retrospective Clinical Study of Fresh Autologous Pericardial Reconstructing Tri-leaflet Pulmonary Artery Conduit in Relevant Patients
Hanlu YI ; Xiaofeng LI ; Song BAI ; Jian GUO ; Nan DING ; Jia ZHENG
Chinese Circulation Journal 2017;32(4):380-383
Objective: To summarize the application and efficacy of fresh autologous pericardial tri-leaflet pulmonary artery conduit for right ventricular outflow tract reconstruction in patients with complex congenital heart disease (CHD). Methods: A total of 18 relevant patients received fresh autologous pericardial tri-leaflet pulmonary artery conduit for right ventricular outflow tract reconstruction in our hospital from 2007-08 to 2012-12 were studied. The patients were at the mean age of (2.12±2.02) years with body weight ≥ (9.41±3.62) kg including 10 male. Echocardiography was followed-up at 1 month, 3-6 and ≥12 months post-operation. Results: All 18 patients had successful operation. 2 patients died at early post-operative stage including 1 with severe infection and respiratory failure, 1 with low cardiac output syndrome. 16 survivors had the average ICU stay time (140.2±124.5) h, mechanical ventilation (94.4±87.6) h, transcutaneous O2 saturation at quiet condition without O2 inhalation at (97.1±3.34) %. There were 3 patients lost contact during followed-up period and 13 received periodical examination. No obvious calcification was found in chest X-ray; echocardiography showed infrequent stenosis of right ventricular outflow tract, pulmonary valve ring and main pulmonary artery; left and right pulmonary artery stenosis at the second place. Conclusion: The safety and efficacy of fresh autologous pericardial tri-leaflet pulmonary artery conduit for right ventricular outflow tract reconstruction was fine for treating relevant patients, the mid and long term effect should be further observed.
8.Analyzing the difference between atomic fluorescence spectrometry and ICP-MS in the determination of arsenic in urine
LIANG Jia bin HE Yi nan GAO Yun xia GUO Jia ming GUO Yao ping CHEN Jiu LIU Yi min WANG Zhi
China Occupational Medicine 2022;52(04):421-
Abstract: Objective ( )
To compare the measured results of arsenic in urine by atomic fluorescence spectrometry AFS and
- ( - ), Methods
inductively coupled plasma mass spectroscopy ICP MS and analyze the reasons of the difference. The samples
WS/T 474-2015 Determination of Arsenic in Urine by Hydride Generation Atomic Fluorescence
were pretreated according to
Spectrometry, ( ∶ ∶ ∶∶ ,V/V/V)
and digested with mixed acid nitric acid sulfuric acid perchloric acid=3 1 1 and then determined by
- -
AFS and ICP MS. The samples were diluted with 0.50% nitric acid and determined by ICP MS. The samples included urine
, , (
arsenic quality control samples inorganic arsenic supplemented samples and organic arsenic arsenic choline and arsenic
) -
betaine supplemented samples. Standard curve method was used to compare the results of AFS method and ICP MS method.
Results ( ) ( )
The results of quality control samples by AFS method digestion and ICP-MS method without digestion were
, -
within the range of reference values but the values obtained by AFS method were lower than those obtained by ICP MS method.
- - - ,
The recovery of AFS and ICP MS was 97.79% 100.82% and 99.55% 99.98% respectively. In the middle and high
, - ( P )
concentration groups the measured values of inorganic arsenic by AFS were lower than that by ICP MS all <0.01 . The
( ) -
recovery of arsenic betaine and arsenic choline by AFS method digestion was only 2.17% 2.63%. The values of arsenic betaine
( ) - (
and arsenic choline measured by AFS method digestion were lower than those measured by ICP MS method without
) - ( )( P )Conclusion
digestion and ICP MS method digestion all <0.01 . The result of urine arsenic measured by AFS method
- ,
was lower than that measured by ICP MS method which may be related to the mixed acid digestion of AFS method.
Keywords: ; - ; ; ; ; ;
9.Analysis of titer stability and inactivation kinetics of harvest solution of SARS-CoV-2
GUO Bing-feng ; HAN Bin ; HAO Yi-nan ; WANG Kui ; YIN Ji-xiang ; LI Yan ; LI Nan ; LING Xiang-ping ; PAN Ruo-wen
Chinese Journal of Biologicals 2023;36(2):129-132+144
Objective To investigate the titer stability of the harvest solution of severe acute respiratory syndrome coronavirus2(SARS-CoV-2)at 2 ~ 8 ℃ and the inactivation effect of β-propiolactone inactivator on the virus.Methods Three batches of SARS-CoV-2 harvest solution(batch numbers:202111001,202111002 and 202111003)were stored at 2 ~ 8 ℃ for 12 d and sampled every 3 d(0,3,6,9 and 12 d)for detection of the titers by Karber method;Three batches of virus harvest solution equilibrated overnight at 2 ~ 8 ℃ were inactivated by adding β-propiolactone at a volume fraction of 1∶4 000 and detected for the titers at different inactivation time points(0,0.5,1,1.5,2,3,4,8,16 and 24 h),of which samples inactivated for 8,16 and 24 h were taken for inactivation verification,and samples inactivated for 24 h were observed by transmission electron microscope.Results The titers of SARS-CoV-2 decreased with the prolongation of storage time at 2 ~8 ℃,which showed no obvious decrease during 0 ~ 3 d,while decreased from the initial 7.75,6 and 7.5 lgCCID_(50)/mL to5.75,4.625 and 6.25 lgCCID_(50)/mL on day 12,indicating that the virus activity showed a gradual decrease trend at 2 ~8 ℃;With the inactivation time,the virus titer decreased continuously and could not be detected after inactivation for 3 h.Transmission electron microscope observation showed that the inactivated virus particles were intact and the spike protein was evenly distributed.Conclusion The virulence of SARS-CoV-2 stored at 2 ~ 8 ℃ was unstable,so the subsequent inactivation and purification process should be carried out as soon as possible;The titer of virus could not be detected after3 h of inactivation,which provided a reference for the determination of the inactivation process.