1.Effect of sevoflurane anesthesia in diabetic pregnant rats on cognitive function of offspring rats
Huan CHEN ; Hailiang DU ; Ling PEI
Chinese Journal of Anesthesiology 2016;36(11):1322-1325
Objective To investigate the effects of sevoflurane anesthesia in diabetic pregnant rats on the cognitive function of the offspring rats. Methods Forty female Sprague?Dawley rats and 5 male rats, weighing 200-250 g, were used in the study. Twenty pregnant rats at 7 weeks of gestation were randomly selected, and diabetes mellitus was induced by intraperitoneal streptozotocin 45 mg∕kg and confirmed by blood glucose level>10.4 mmol∕L. Twenty pregnant rats at 20 days of gestation, in which diabetes mellitus was not induced, were selected and divided into 2 groups ( n=10 each) using a random number table:sevoflurane group (group S) and control group (group C). Twenty pregnant rats at 20 days of gestation with diabetes mellitus were selected and divided into 2 groups ( n=10 each) using a random number table:sevoflurane group (group DS) and control group ( group DC). In DS and S groups, the pregnant rats were placed in a self?made anesthetic box and inhaled 2% sevoflurane for 2 h. At 6 weeks after birth, the offspring rats were selected, and Morris water maze test was performed. The rats were sacrificed, brains were removed, and the hippocampi and cortex were removed for determination of phosphorylated cyclic a?denosine monophosphate response element?binding protein ( p?CREB) expression using immuno?histochem?istry. Results Compared with group C, the escape latency was significantly prolonged, and the frequency of crossing the original platform was significantly decreased in S and DC groups ( P<0.05) . Compared with group DC, the escape latency was significantly prolonged, and the frequency of crossing the original plat?form was significantly decreased in group DS (P<0.01). Compared with group S, the escape latency was significantly prolonged, the frequency of crossing the original platform was significantly decreased ( P<0.05) , and lighter staining for p?CREB was found, and the number of p?CREB positive cells was decreased in the hippocampus and cortex in group DS. Conclusion Sevoflurane anesthesia?induced cognitive dys?function is aggravated in the offspring rats of diabetic pregnant rats, and the mechanism is related to inhibi?tion of CREB phosphorylation.
2.Effect of sleep deprivation on cognitive function in rats undergoing propofol anesthesia
Hailiang DU ; Huan CHEN ; Ling PEI
Chinese Journal of Anesthesiology 2016;36(2):161-164
Objective To evaluate the effect of sleep deprivation on cognitive function in the rats undergoing propofol anesthesia.Methods Sixty healthy male Sprague Dawley rats,aged 14-18 weeks,weighing 200-250 g,were randomly assigned into 3 groups (n=20 each) using a random number table:control group (group C),propofol anesthesia group (group P),and sleep deprivation + propofol anesthesia group (group SDP).Propofol was given as a bolus of 15 mg/kg followed by an infusion of 40 mg · kg-1 · h-1 for 2 h in group P.After the rats were subjected to rapid eye movement sleep deprivation for 24 h,the rats received propofol anesthesia in group SDP.Before sleep deprivation,after sleep deprivation,and at 1,3 and 7 days after anesthesia,Morris water maze test was used to assess the learning and memory function,and the escape latency and frequency of crossing the original platform were recorded.Ten rats randomly selected from each group at 1 and 7 days after anesthesia were sacrificed,and brains were removed to observe the morphology of nerve cells in the hippocampal CA1 region (by Nissl's staining) and to detect the expression of phosphorylated Tau at Thr231 (Tau-pThr231) in the hippocampal CA1 region (by immunohistochemisty).Results Compared with group C,the escape latency was significantly prolonged,the frequency of crossing the original platform was decreased,the expression of Tau-pThr231 in the hippocampal CA1 region was up-regulated at 1 day after anesthesia in P and SDP groups (P<0.05),especially in group SDP (P<0.05),and there was no significant difference between the groups at the other time points (P>0.05).The pathological changes were aggravated at 1 day after anesthesia in group SDP compared with group P,and there was no significant difference at 3 and 7 days after anesthesia between group SDP and group P.Conclusion Sleep deprivation can aggravate the transient cognitive dysfunction after propofol anesthesia,and the mechanism is related to promotion of Tau phosphorylation in the rats.
3.Effects of volume resuscitation with different fluids on expression of aquaporin 1 in pulmonary capillary endothelial cells of endotoxemic rats
Shuying WANG ; Na CHEN ; Ling PEI
Chinese Journal of Anesthesiology 2014;34(9):1108-1111
Objective To evaluate the effects of volume resuscitation with different fluids on expression of aquaporin 1 (AQP-1) in pulmonary capillary endothelial cells of endotoxemic rats.Methods Fifty pathogen-free male Sprague-Dawley,rats,weighing 250-300 g,aged 6-8 weeks,were randomly divided into 4 groups (n =10 each):control group (group C),lipopolysaccharide group (group LPS),NaCl group (group NS),6% hydroxyethyl starch 130/0.4 group (group HES) and hypertonic hydroxyethyl starch 40 group (group HSH).Sepsis was induced with LPS 5 mg/kg injected via the femoral vein.At l0 min after the model was successfully established,the corresponding fluids were infused into the femoral vein at a constant speed (15 ml/kg over 6 h) via a pump.At 0,3 and 6 h after LPS administration,blood samples were collected from the femoral artery for measurement of serum tumor necrosis factor-α (TNF-α) concentrations and for blood gas analysis.PaO2 and lactate (Lac) concentrations were recorded and oxygenation index (PaO2/FiO2) was calculated.The rats were sacrificed at 6 h after LPS administration,and lungs were removed for determination of AQP-1 expression in pulmonary capillary endothelial cells and wet-to-dry lung weight ratio (W/D ratio),and for microscopic examination of the pathological changes which were scored.Results Compared with group C,W/D ratio,serum TNF-α and Lac concentrations,and pathological scores were significantly increased,AQP-1 expression was down-regulated,and PaO2 and oxygenation index were decreased in LPS,NS,HES and HSH groups.Compared with group LPS,W/D ratio,serum TNF-a and Lac concentrations,and pathological scores were significantly decreased,AQP-1 expression was up-regulated,and PaO2 and oxygenation index were increased in NS,HES and HSH groups.Compared with group NS,W/D ratio,serum TNF-α and Lac concentrations,and pathological scores were significantly decreased,AQP-1 expression was up-regulated,and PaO2 and oxygenation index were increased in HES and HSH groups.Compared with group HES,the blood Lac concentrations were significantly decreased,and no significant changes were found in the other parameters in group HSH.Conclusion Volume resuscitation with NaC1,hydroxyethyl starch 130/0.4 and hypertonic hydroxyethyl starch 40 can reduce the lung injury effectively in endotoxemic rats,and hypertonic hydroxyethyl starch 40 provides more significant efficacy,and up-regulated AQP-1 expression in pulmonary capillary endothelial cells is involved in the mechanism.
4.Epidemiologic analysis of 399 patients with organophosphorus pesticide poisoning.
Zhi-Wei SUN ; Xiao-Ling CHEN ; Pei-Fen FANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2007;25(12):753-754
Adolescent
;
Adult
;
Aged
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Aged, 80 and over
;
Child
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Child, Preschool
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China
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epidemiology
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Female
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Humans
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Male
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Middle Aged
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Organophosphate Poisoning
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Pesticides
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poisoning
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Young Adult
5.Analysis on the effect of herbal reyanbao combined with rehabilitation training on the rehabilitation of patients with lumbar disc herniation
Ke CHEN ; Yi ZHANG ; Ling ZHANG ; Pei HUANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(7):106-108
Objective To study the effect of herbal reyanbao combined with rehabilitation training on the rehabilitation of patients with lumbar disc herniation.Methods 120 cases with lumbar disc prolapse as the research object from January 2015 to December 2016 in Wuhan integrated traditional Chinese and western medicine hospital were divided into two groups(the control group and the observation group).The control group were treated with routine conservative+conventional nursing plan, and the observe group were given herbal reyanbao combined with rehabilitation training.Clinical data were compared in the two groups.Results The clinical effect and rehabilitation degree in the observation group were better than those in the control group, the difference was statistically significant(P< 0.05).Conclusion It can help patients with lumbar disc herniation recover as soon as possible which herbal reyanbao combined with rehabilitation training were used on the rehabilitation of patients, and it is worthy of application.
6.Tinnitus assessment by THI and VAS in patients with sudden sensorineural hearing loss.
Pei WANG ; Zeheng QIU ; Ling CHEN ; Xiaoling GAN ; Jiaying YU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(22):1777-1779
OBJECTIVE:
To verify the relationship between THI and VAS scores in patients with sudden hearing loss and tinnitus in a prospective study.
METHOD:
Forty-four patients classified their tinnitus according to VAS and THI before and after treatment, and both scores were compared through the Pearson's correlation coefficient test and Nonparametric tests.
RESULT:
There was a correlation between VAS and THI scores in patients with sudden hearing loss and tinnitus. Tinnitus assessment scores were significantly reduced after treatment. Decreasing of THI and VAS scores were not depended on frequency and loudness of tinnitus and severity of deafness, but therapeutic effect of sudden sensorineural hearing loss.
CONCLUSION
THI and VAS scores are useful for assessment of tinnitus in patients with sudden hearing loss and tinnitus.
Audiometry
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Deafness
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Hearing Loss, Sensorineural
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complications
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Hearing Loss, Sudden
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complications
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Humans
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Prospective Studies
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Tinnitus
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complications
7.Effects of infrasound on rat myocardial cell and its underlying mechanism
Zhaohui PEI ; Jingzao CHEN ; Miaozhang ZHU ; Ling LI ; Zhiqiang ZHUANG
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(12):-
Objective To observe the effects of infrasound on rat myocardial cells and to study its underlying mechanism. Methods One hundred Sprague-Dawley rats were divided into a normal control group and a infrasound exposure group, composed of various subgroups subject to exposure to infrasound for 2 hours daily for 1 d,7 d,14 d,21 d,and 28 d, respectively. The ultra-microstructure and apoptosis of the rat myocardial cells were observed, and SOD and MDA were measured. Results After exposure to infrasound, significant ultra-microstructural impairment and increased apoptosis of the myocardial cells were observed in the infrasound exposure group as compared to those of the normal control group,(P
8.Advances in Study on Endoscopic Management of Iatrogenic Gastrointestinal Perforation
Yan LIU ; Pei LI ; Pei MIN ; Junkai SU ; Zhong CHEN ; Ling ZHONG ; Yiling CAI ; Mingqing ZHANG
Chinese Journal of Gastroenterology 2016;21(8):501-504
Iatrogenic gastrointestinal perforation is one of the severe adverse events of endoscopic therapeutic procedure. For acute iatrogenic perforation,management by endoscopic techniques is a simple and rapid modality to close the perforation with minimal invasiveness and avoiding the traditional surgical trauma. Endoclips,suture with special instruments,covered stents,degradable sheets combined with tissue adhesive,and combined endoscopic techniques such as snares combined with endoclips,are the major endoscopic therapeutic modalities for closure of iatrogenic gastrointestinal perforation. In this article,the current status and progress of endoscopic management for acute iatrogenic gastrointestinal perforation were reviewed.
9.Visuospatial attention deficit in patients with frontoparietal network lesions: Evidence from the attention network test
Guangqing XU ; Yue LAN ; Shaozhen CHEN ; Zhong PEI ; Ling CHEN ; Dongfeng HUANG
Chinese Journal of Physical Medicine and Rehabilitation 2011;33(2):122-125
Objective To probe deficits in visuospatial attention using an attention network test (ANT) in patients with frontoparietal network lesions. Methods The ANT was used to measure the alertness, orienting and executive control abilities of 25 patients with local brain lesions, including 13 with frontal and 12 with parietal damage. Their results were compared with those of health adults. Results During ANT tasks, the patients' responses were significantly slower on each cue and target condition than controls', and showed deficits in their alerting and orienting networks. The efficiency of executive control was impaired in patients with frontal lesions, but increased with parietal lesions. Conclusions These findings suggest that the frontoparietal network is involved in alerting and orienting, but the executive control function may be selectively associated with the frontal lobe. ANT is an efficienttool for studying visual attention and cognition.
10.Itraconazole application for prevention of fungal infection in patients receiving allogeneic hematopoietic stem cell transplants
Li PEI ; Ling WEI ; Dabing QIN ; Xiaobo TIAN ; Gang FU ; Yan ZHU ; Yong ZHANG ; Jieping CHEN
Chongqing Medicine 2013;(25):2953-2954,2958
Objective To evaluate the clinical effect of itraconazole in prevention of invasive fungal infections in allogeneic hema-topoietic stem cell transplantion .Methods In this retrospective study ,110 patients receiving allogeneic hematopoietic stem cell transplants were administed itraconazole or fluconazole for prevention of fungal infection .The occurrence and prognosis of invasive fungal infection ,and the side effect of both pyrroles were observed .Results Proven and probable invasive fungal infections occurred in 5 of 69 itraconazole recipients(7 .2% ) and in 8 of 41 fluconazole recipients(19 .5% ) during the first 180 days after transplanta-tion ,the difference had statistical significance(P<0 .05) .The fatality rate related to fungal infection had no statistical difference be-tween the two groups(2 .9% vs .7 .3% ) .The occurrence of itraconazole adverse reactions were more than fluconazole (26 .9% vs . 7 .0% ) ,and both itraconazole and fluconazole were well tolerated .Conclusion Itraconazole significantly reduces the incidence of inva-sive fungal infection in the patients receiving allogeneic hematopoietic stem cell transplants ,and it is a effective and safe prophylaxis .