1.Influence of Environmental Temperature on Formaldehyde Emission from Blockboard
Xiao-Heng WANG ; Xing-Rong LIU ;
Journal of Environment and Health 2007;0(10):-
Objective To study the effect of temperature on the emission of tbrmaldehyde trom the blockboard.Methods A 0.25 m3 simulation chamber was used to explore the emission of formaldehyde from blockboard at the temperature of 15,17,19,21, 23,25,27,and 29 ℃,respectively.The relative humidity,the ventilation velocity and the loading factor in simulation chamber was (50?1)%,1.0 L/min,and(1?0.03)m~2/m~3 respectively.Results A hyperbolic logarithm variation in formaldehyde concentration with time in the chamber was observed at different temperatures.Formaldehyde concentration in the chamber increased remarkably once the temperature exceeded 25 C.The chamber stabilization formaldehyde concentration varied with temperature in accordance with an exponent equation of y=0.921 9?0.024 9e~(0.176 4x)(R~2=0.996 9).Conclusion The temperature can greatly influence formaldehyde emission from the blockboards.Higher temperature will facilitate formaldehyde emission from the blockboards.
2.The Seattle heart failure model.
Xing-Jiu CAI ; Rong BAI ; Lin WANG
Chinese Journal of Cardiology 2009;37(2):184-185
3.Endoscopic piecemeal mucosal resection of early esophageal cancer and precancerous lesions:a retro-spective study
Rong LIANG ; Xing CHEN ; Rong WANG ; Bo HOU ; Ruijun MA
Chinese Journal of Digestive Endoscopy 2016;33(9):625-627
Objective To investigate the technical feasibility and oncological safety of EPMR for early esophageal cancer and precancerous lesions. Methods Clinicopathological data, procedure quality and complications of 70 patients with early esophageal cancer or precancerous lesions were retrospectively ana?lysed. The technical safety and feasibility were assessed, and the complications were investigated through postoperative surveillance. The results were compared with published data from two high?quality meta?analysis studies on ESD. Results In a total of 70 patients who underwent EPMR, 35?7%( 25/70) were diagnosed as having early esophageal cancer and 64?3%( 45/70) atypical hyperplasia. And tumor size greater than 2 cm was 78?6%(55/70). The mean EPMR time was(28?31±9?49) minutes. The R0 resection rate of EPMR was 88?6%(62/70) and no perforation occurred. The bleeding rate was 21?4%(15/70). The esoph?ageal stricture rate was 1?4%( 1/70) . The recurrence rate was 2?9%( 2/70) . Compared with published ESD data from the two studies, EPMR showed shorter procedure time, lower curative rate and lower rates of stric?ture and perforation, but slightly higher rates of bleeding and recurrence. Conclusion Both EPMR and ESD are feasible and effective for early esophageal cancer and precancerous lesions. The curative results of EPMR are similar to ESD, with shorter procedure time, but higher bleeding and recurrence rates.
4.Mixed epithelial and stromal tumor of kidney in male patient: report of a case.
Xin ZHANG ; Chun-rong LIU ; Xiu-rong WANG ; Rong-ge XING
Chinese Journal of Pathology 2013;42(10):700-701
Actins
;
metabolism
;
Carcinoembryonic Antigen
;
metabolism
;
Desmin
;
metabolism
;
Diagnosis, Differential
;
Epithelial Cells
;
metabolism
;
pathology
;
Follow-Up Studies
;
Humans
;
Kidney Neoplasms
;
metabolism
;
pathology
;
surgery
;
Male
;
Middle Aged
;
Neoplasms, Complex and Mixed
;
metabolism
;
pathology
;
surgery
;
Neoplasms, Glandular and Epithelial
;
metabolism
;
pathology
;
surgery
;
Stromal Cells
;
metabolism
;
pathology
;
Vimentin
;
metabolism
5.Preparation and Observations on the Curative Effects of Shenyanqing Tablet
Chaoli LUO ; Wensheng ZHANG ; Rong GUO ; Jianhua XING ; Dong WANG
China Pharmacy 2001;0(09):-
OBJECTIVE:To study the curative effects of Shenyanqing tablet.METHODS:1 200 patients with chronic glomerulonephritis,acute glomerulonephritis,latent glomerulonephritis and purpura glomerulonephritis were randomized into the treatment group and control group,and separately studied on curative effects and reduction of adverse reaction of glucocorticosteroid.In the study of curative effects,the control group received no special treatment except that on reducing pressure and diuresis,and the treatment group was given Shenyanqing tablet,8 tablets? d-1,tid,in addition to receiving same treatment as that for the control group.In the study of reducing adverse reaction of glucocorticosteroid,the control group(the treatment group was the same as the method above)was given normal glucocorticosteroid treatment for 3 months and 2 months respectively.RESULTS:It has significant difference(P
7.Chemical constituents from the fruits of Alpinia oxyphylla and their neuroprotective effects
Cheng-xing QIU ; Ji WANG ; Li-ping MU ; Rong-ping ZHANG ; Xing-long CHEN
Acta Pharmaceutica Sinica 2023;57(9):2746-2753
Fourteen compounds were isolated from the ethyl acetate fraction of 90% EtOH extracts of the dried fruits of
8.Evaluation of narrow band imaging for children with abdominal Henoch?Schonlein purpura
Ling WANG ; Weiwei CHENG ; Xing WANG ; Zhujun GU ; Zhihong HU ; Rong CHEN ; Ping WANG ; Haifeng LIU
Chinese Journal of Digestive Endoscopy 2017;34(2):88-93
Objective To evaluate value of narrow band imaging(NBI) endoscopy for children with abdominal Henoch?Schonlein purpura ( HSP ) . Methods A total of 46 patients with abdominal HSP were enrolled into the observation group(NBI intervention) from November 2010 to February 2016.Diagnostic rates of white light and NBI endoscopy in abdominal HSP patients, IgA positive rates of targeted biopsies and severe complications were retrospectively analyzed. A total of 25 abdominal HSP patients with no NBI intervention admitted from 2007 to 2009 were randomly enrolled into control group. Data of the control group were compared with those of observation group. Results In observation group, the diagnostic rate under NBI was significantly higher than that under white?light endoscopy[91. 3%(42/46)VS 67. 4%(31/46),χ2=8. 02,P<0. 05]. IgA positive rates of targeted biopsies under NBI was significantly higher than that under white?light endoscopy [ 95. 7%( 88/92 ) VS 69. 6%( 64/92 ) ,χ2 = 21. 79, P<0. 05 ] . Three patients developed such serious complications as digestive hemorrhage as predicted. Compared with control group, abdominal pain and blood stool relief time (10. 96±5. 32 d VS 19. 68±4. 29 d,t=7. 50,P<0. 01), fasting time(10. 37±5. 42 d VS 8. 80± 3. 71 d,t=7. 73,P<0. 01), hospital stay (18. 80±7. 11 d VS 23. 12±4. 36 d, t=3. 16,P<0. 01), time of stool occult blood negative ( 11. 41 ± 6. 30 d VS 19. 12 ± 4. 09 d, t=6. 22, P<0. 01 ) in observation group were significantly shortened. Conclusion NBI endoscopy is valuable for improving the diagnostic accuracy and biopsy accuracy and complication prediction of abdominal Henoch?Schonlein purpura in children.
9.Study of estradiol on treatment of preeclampsia in rat model
Xueyan WANG ; Qing XIONG ; Chao WANG ; Bing XIAO ; Shu ZHOU ; Rong ZHOU ; Aiyun XING
Chinese Journal of Obstetrics and Gynecology 2000;0(11):-
Objective To evaluate whether estradiol can inhibit and cure the inflammation of experimental preeclampsia in rats. Methods Experimental preeclampsia was induced in 14-day-pregnant rats by infusion of endotoxin (1.0 ?g/kg). Rats with normal pregnancy were infused with sodium chloride solution.A group of preeclampsia rats was injected with 17?-estradiol (17?-E_2, 1 mg?kg -1 ?d -1 ). Blood pressure, albuminuria,inflammation associated adhesion molecule CD_ 49d and tumor necrosis factor-?(TNF-?) were assessed. Results On pregnant day 19, for normal pregnancy group(group C) the blood pressure was (120.4?2.0)mm Hg (1 mm Hg=0.133 kPa),urinary protein (0.47?0.06)mg/24 hours;for experimental preeclampsia group(group A) blood pressure was (134.2?2.4) mm Hg,urinary protein(0.79?0.10)mg/24 hours; for experimental preeclampsia with 17?-E_2 treatment group (group B) blood pressure was(123.3?1.7)mm Hg,urinary protein (0.51?0.08)mg/24 hours. A significant increase of blood pressure and urinary albumin was observed in group A. CD_ 49d expression and TNF-? concentration were also increased. 17?-E_2 reduced the expression of CD_ 49d , concentration of TNF-?,blood pressure and albuminuria of experimental preeclampsia. However, the weight of fetuses in 17?-E_2 treatment group were less than that in other groups. Conclusion 17?-E_2 can improve the symptoms of experimental preeclampsia,but its effects on fetus need to be further studied.
10.PROLIFERATION INHIBITION AND APOPTOSIS INDUCTION ON HUMAN HEPATO-CARCINOMA HepG-2 CELLS BY UNDARIA PINNATIFIDA POLYSACCARIDES
Xiangyang ZOU ; Xue WANG ; Huaxin WANG ; Lianying GUO ; Rong XING ; Lin HOU
Acta Nutrimenta Sinica 2004;0(05):-
Objective: To investigate the inhibitory effect of Undaria pinnatifida polysaccharides (UPPS) on hepatocellular carcinoma HepG-2 cells and its possible mechanism. Method: The effect of inhibiting proliferation and inducting apoptosis of UPPS were determined by means of MTT and FCM. The expression of Bcl-2 and Bax proteins was immunohis to chemcally evaluated after treatment of UPPS. Results: UPPS inhibited HepG-2 cells growth in vitro , significantly higher than the negative control group (P