2.Role of endoplasmic reticulum stress in high fattyacid induced injury in cardiomyocytes
Dan CHEN ; Jiliang WU ; Jing LI
Chinese Pharmacological Bulletin 2017;33(7):966-971
Aim To explore the role of endoplasmic reticulum stress (EPR) in high fatty acid induced injury in cardiomyocytes.Methods Cardiomyocytes were exposed to different concentrations of palmitic acid (0, 0.1, 0.2, 0.4 mmol·L-1) for 24 h and different time points of high palmitic acid (0.2 mmol·L-1) (12, 24, 48 h).Cell viability was measured by CCK8, and the protein expressions of EPR such as GRP78, CHOP, PERKphos, IRE1phos, ATF6 and apoptosis related proteins such as Bcl-2 and Bax were determined by Western blot.Results When the cells were stimulated with palmitic acid (0.1~0.4 mmol·L-1) for 24 h, the cell proliferation rates of 0.2 and 0.4 mmol·L-1 groups were significantly decreased.Cardiomyocytes exposured to high palmitic acid (0.2 mmol·L-1) for 24 h showed an increase in theexpression of EPR related proteins (GRP78, CHOP, PERKphos, IRE1phos and ATF6) and Bax(P<0.05), while Bcl-2 expression was significantly reduced.Pretreatmented with EPR inhibitor pravastatin(10 mol·L-1) significantly increased high palmitic acid induced Bcl-2 expression (P<0.05) and significantly decreased high palmitic acid induced Bax expression (P<0.05).Conclusion Activated EPR might play an important role in treatment of high fatty acid induced myocardial injury.
3.Personality Characteristics of 1921 Cadets in an Air Force Academy Shown by the MBTI-G
Jing CHEN ; Dan-Min MIAO ; Yang WANG ;
Chinese Mental Health Journal 2002;0(11):-
Objective:To investigate influence of living locations on the personality characteristics of the only child and none-only children in an air force academy.Methods:1921 cadets were tested by the Chinese version of the MBTI-G.Results:Scores of the only child cadets from cities on the Sensing-Intuition and Thinking-Feeling dimensions were higher than those of none-only children group from cities and those of the only child group from countries.The scores of them on the SN scale were 93.0?18.5,90.4?17.6 and 90.1?17.7(t=2.25,P=0.025;t=1.99,P= 0.048).The scores of them on the TF scale were 94.6?22.6,89.1?21.1 and 88.4?21.0(t=4.02,P
4.Perioperative nursing of patients with incomplete cervical spinal cord injury caused by traumatic cervical spine fracture
Jie PAN ; Jing CHEN ; Dan ZHAO
Modern Clinical Nursing 2016;15(1):48-51
Objective To investigate the effect and perioperative nursing experience of surgical operation on patients with incomplete cervical spinal cord injury caused by traumatic cervical spine fracture. Method Fifty-nine patients with traumatic cervical spine fracture in our hospital from January 2011 to 2014 were nursed perioperatively, including before operation , training accttenty with swallowing and blowing balloons besides basic nursing care , and after operation , mental care , close observation and functional exercises postoperatively. Results The operation time was (110.5+13.0) min, the amount of bleeding was (155.6+7.5)mL. Three patients developed hematoma compression, 13 patients developed high fever. All patients were cured after treatment and nursing. Conclusion Preoperative training of swallowing and blowing balloon is fundamental for ensured surgical effect and intraoperative surgical cooperation and close observation together with postoperative mental care, close obsersation and functional exercise are the guarantee for surgical effect.
5.Clinical feature of hyperthyroidism in elderly patients and therapeutic comparison between ~(131)Ⅰand antithyroid drugs
Dan-Yun CHEN ; Jin JING ; Tang-Hua CHEN ;
Chinese Journal of Endocrinology and Metabolism 2000;0(06):-
One hundred elderly patients with hyperthyroidism were enrolled in a paired design study.The outcome of ~(131)Ⅰand antithyroid drug(ATD)treatments was examined after 2 years.The results showed that ~(131)Ⅰcould be recognized as the safer,more convenient and effective treatment than ATD for the elderly patients with hyperthyroidism.
6.Discussion on Rapid Deployment Flow for Medical Support Unit of Health-care Train
Yu CHEN ; Hanjun SUN ; Jianbo JING ; Dan HUANG
Chinese Medical Equipment Journal 1989;0(04):-
The rapid deployment flow for medical support unit of health-care train is discussed in the aspect of personnel spot-training with carriage. A handbook is compiled for loading and unloading health-care train's equipment. A series of methods and processes are put forward based on the principle of " fixed type of equipment, fixed person for loading or unloading, fixed position, fixed operation steps", which provides a possibility for rapid deployment flow at medical support unit.
7.Therapeutic effects of 94 cases with improved external dacryocystorhinostomy
Dan, CHEN ; Ming-Hua, SHI ; Jing, WANG ; Xian-Wu, ZENG
International Eye Science 2014;(7):1348-1349
AlM: To observe the therapeutic effects of improved external dacryocystorhinostomy.
METHODS:Retrospective analysis on 94 patients with monocular chronic dacryocystitis in our hospital from October 2010 to December 2013 were taken the improved external dacryocystorhinostomy. The improved surgery which was based on the traditional surgery including: 1. Nasal packing after anesthesia to relieve the pain and bleeding; 2. Not cut the medial palpebral ligament; 3. Suture the upper membrane of the nasal mucosa only;4. Pipe placement;5. Skin layered hairdressing suture. The patients were follow-up 3mo-2a after operation.
RESULTS: Ninety-three cases of patients cured with completely asymptomatic, no epiphora or mucopurulent secretion flow out from the lacrimal punctum, unobstructed lacrimal irrigation, the efficiency is 99%, 1 case of patient was epiphora, obstructed lacrimal irrigation, 1% was invalid.
CONCLUSlON:The improved external dacryocystorhinostomy is an effective surgical method which is easy to operate with high cure rate and its long term effect is precise.
8.Role of NADPH oxidase in high fat-induced injury in MIN6 islet βcells
Jing LI ; Dan CHEN ; Yu ZHOU ; Cuiyu BAO
Chinese Pharmacological Bulletin 2016;32(9):1317-1320,1321
Aim To explore the role of nicotinamide adenine dinucleotide phosphate ( NADPH ) oxidase in high fat-induced injury in MIN6 isletβ cells. Methods MIN6 islet β cells were exposed to different concen-trations of palmitic acid ( 0. 1 , 0. 3 , 0. 5 , 0. 8 mmol · L-1 ) for 48 h and different time points of 0. 5 mmol· L-1 palmitic acid(24,48,72,96 h). Cell viability was measured by MTT, the protein expression of NADPH oxidase subunits such as p22 phox , p47 phox , p67 phox and gp91 phox and apoptosis related proteins such as Bcl-2 and Bax were determined by Western blot. Results MIN6 islet cells exposed to palmitic acid at 0. 5 mmol ·L-1 for 48 h showed a decrease in their viability and an increase in the expression of NADPH oxidase sub-units(p22phox、p47phox、p67phox and gp91phox) and Bax(P<0. 05 ) , while Bcl-2 expression was significantly re-duced. the pretreat with NADPH oxidase inhibitor di-phenyliodonium( DPI,10 μmol · L-1 ) significantly in-hibited high fat-induced Bcl-2 and Bax expression( P<0. 05 ) . Conclusion Activated NADPH oxidase might play an important role in the treatment of high fat-in-duced injury in MIN6 islet cells.
9.Mediating effect of rumination on relationship between loneliness and attachment in college students
Jian GUAN ; Jing TANG ; Yumo GUO ; Lei HUANG ; Dan CHEN
Chinese Mental Health Journal 2017;31(5):400-405
Objective:To explore the relationship between loneliness and attachment in college students and the mediating effect of rumination.Methods:Totally 545 students [239 males,306 females;average age (20 ± 3) years] were assessed with the Russell UCLA Loneliness Scale (UCLA),Experiences in Close Relationships Inventory (ECR,including attachment avoidance and attachment anxiety) and Nolen-Hoeksema Ruminative Response Scale (RRS).The structural equation model was used to research the mediating effect of rumination on relationship between loneliness and attachment.Results:The scores of UCLA,ECR and RRS were positively correlated each other (r =0.30,0.20,0.44,Ps < 0.01) in college students.The inspection of the mediating effect found fit indices for hypothetical model were acceptable (x2 =16.69,df=5,NFI =0.98,IFI =0.99,TLI =0.96,CFI =0.99,AGFI =0.96,RMSEA =0.07).Path analysis revealed that attachment avoidance and attachment anxiety predicted directly loneliness (β =0.10,0.06) and rumination (β =0.05,0.16),and predicted loneliness by rumination (β =0.18).Conclusion:The rumination may be associated with loneliness and individual attachment and play a partial mediating effect between loneliness and attachment in college students.
10.Performance-intensity function of short Mandarin monosyllabic word list for normal-hearing listeners.
Rui ZHOU ; Hua ZHANG ; Shuo WANG ; Jing CHEN ; Dan WU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(6):396-399
OBJECTIVE:
To analyze the short monosyllabic list of Mandarin speech test materials (MSTMs) which have been evaluated the equivalence of difficulty, and to establish the performance-intensity function (P-I function) for people with normal hearing as clinical reference of hearing recovery and individuals ability to perceive and process speech.
METHOD:
Thirty-seven subjects (the age ranged from 18 to 26 years old) who speak Mandarin well in their daily lives with normal hearing participated in this study. Eight lists of the Short Mandarin Monosyllabic materials (20 words per list) with equal difficulty were utilized. The results were analyzed by Statistical Package for the Social Sciences (SPSS) software version 17.0.
RESULT:
P-I function for short monosyllabic word list was x = 98.557/(1 + 12.243 exp (-0.17(P-15, x(max) = 98.557. And the sound pressure level of speech corresponding to a 50% recognition score was 29.6 dB SPL or 9.6 dB HL. The results showed P-I function of 3.1 per dB for Mandarin materials.
CONCLUSION
The study established the P-I function of the Mandarin short monosyllabic word list materials with equal difficulty, which provides the normative data for identifying the normal hearing in a clinical setting.
Adult
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Auditory Perception
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Female
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Hearing Tests
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methods
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Humans
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Male
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Speech
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Speech Perception
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physiology