1.Intermediary effect of depression between the Housebound and cognition in community elderly
Lingdi MENG ; Xiao FENG ; Kun LIU
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(7):647-650
Objective To investigate the intermediary effect of depression between housebound and cognition in community-dwelling older adults and to provide intervention for the improvement of the life quality.Methods A total of 720 senior adults were selected to fill out demographic questionnaire,including Rasch-Derived Center for Epidemiological Studies Depression Scale (CES-D-R),housebound scale and the minimental state examination (MMES).Results The depression score of the elderly in community was (3.95±4.12),housebound score was (4.26±1.23),cognition score was (21.52±4.04) and the incidence rate of the cognitive disorder was 37.1%.Cognition was significantly negatively related to housebound and depression (r=-0.409,P<0.01;r=-0.485,P<0.01).Housebound was significantly positively related to depression (r=0.555,P<0.01).The community elderly age,sex,marital status,degree of education,self-assessment of health,living space,depression and the housebound could be used to predict the cognitive function,and all of them could explain the variance of cognitive function of 50.8%(P<0.05).Housebound had a direct effect of-0.02 on cognitive function(P>0.05).The indirect effect of housebound on cognitive function through depressive mood was-0.45(P<0.05).Conclusions The elderly housebound has an intermediary effect on the cognitive function through the depression.
2.Perioperative Changes of Serum Total CK and CK-MB in Patients with Carcinoma of Esophagus and Cardia of the Stomach
Yi MENG ; Kun LIU ; Yungjie WANG
Chinese Journal of Thoracic and Cardiovascular Surgery 1995;0(05):-
The perioperative total serum CK and CK-MB activities were determined in 38 patients with carcinoma of the esophagus and cardia of the stomach with fluorometric and cylinder layer chromatography. The data were compared with those obtained from 18 patients undergoing pulmonary operation and 20 normal subjects. The results suggest that: (1) carcinoma of the esophagus and cardia of the stomach could not induce variation of the total serum CK and CK-MB; (2) the elevation of the total serum CK after esophagogas-trostomy might probably be due to the trauma of the skeletal muscles of the chest wall;(3)the total serum CK is non-specific for the diagnosis of AMI in the perioperation period,but CK-MB might be considered as a specific enzyme criteria.
3.Isolation and purification of alpha-glycerophosphate oxidase in a polyethylene glycol/(NH4 )2SO4 aqueous two-phase system.
Yao MENG ; Jiagui JIN ; Shuangfeng LIU ; Min YANG ; Qinglian ZHANG ; Li WAN ; Kun TANG
Journal of Biomedical Engineering 2014;31(1):136-141
Alpha-glycerophosphate oxidase (alpha-GPO) from Enterococcus casseli flavus was successfully isolated and purified by using polyethylene glycol (PEG)/(NH4)2SO4 aqueous two-phase system (ATPS). The results showed that the chosen PEG/(NH4)2SO4 ATPS could be affected by PEG molecular weight, pH, concentration of PEG and (NH4)2SO4, and inorganic salt as well as additional amount of crude enzyme. After evaluating these influencing factors, the final optimum purification strategy was formed by 16.5% (m/m) PEG2000, 13.2% (m/m) (NH4)2SO4, pH 7.5 and 30% (m/m) additive crude enzyme, respectively. The NaCl was a negative influencing factor which would lead to lower purification fold and activity recovery. These conditions eventually resulted in the activity recovery of 89% (m/m), distribution coefficient of 1.2 and purification fold of 7.0.
Ammonium Sulfate
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chemistry
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Glycerolphosphate Dehydrogenase
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chemistry
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isolation & purification
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Molecular Weight
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Polyethylene Glycols
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chemistry
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Water
4.Reasons and preventive measures for reoperations after laparoscopic radical cystectomy
Kun LIU ; Junsong MENG ; Zongyuan XU ; Guangbo FU ; Suo GU ; Min GU
Chinese Journal of General Practitioners 2014;13(7):575-576
The clinical data of 24 bladder cancer patients reoperated shortly after laparoscopic radical cystectomy were retrospectively analyzed.The reoperative reasons included intestinal injury,wound bleeding,intestinal anastomosis fistula,deep vein thrombosis,ileus and single-J tube slipping.All of them were cured after reoperation.The postoperative complications were infected incisional wound (n =2),urinary leakage (n =1) and pulmonary infection (n =1).All were cured by symptomatic treatments.The keys of reducing the rate of reoperation shortly after laparoscopic radical cystectomy included selecting indications strictly,standardizing operative procedures and adopting special measures.
5.Application of mathematical algorithm for calculating changes of optic and retina function in mice model of glaucoma
Jing-Kun, LIU ; Lin-Bang, WANG ; Bing, WANG ; Ya-Ling, SHENG ; Jing, HE ; Fen-Ge, MENG
International Eye Science 2016;16(11):2014-2018
AIM:To be one of the primary cause injury to multiple sites of ocular of glaucoma which affects over 70 million people worldwide. We applied data mining techniques, linear and the matrix operations, efficiently calculated the network and estimated the possible function of the“node” genes of the retina and optic of glaucoma, in order to provide new thought and method on the pathogenesis of glaucoma.
METHODS: The data in this study is from Gene Expression Omnibus ( GEO ) which belong to Nation Center for Biotechnology Information ( NCBI) , the quality of the raw data CEL files was processed and analyzed by the Expression software which belong to Affymetrix Inc. , Santa Clare, CA, USA. Significant analysis method ( SAM) which base on the T test was used to identified the significant genes. Based on GRNInfer and Gvedit soft we set up gene networks of optic and retina of mice and further more enriched analysis which based on DAVID and MAS3. 0 online software were processed.
RESULTS:The analysis between the group of the optic nerve heads and retinas in different stage of glaucoma showed that the amount of significant different expressed genes in the optic never head group increased significantly comparing with the group of retina in the early stage of glaucoma, the analysis of the genes network construction show that:the node genes of optic nerve heads included Unc13c、Kif5a、TRPM1、PANX; and the node genes of retina include POU4F1, NEFL, BC03870, CALB2. Metabolic pathways enrichment analysis which based on MAS3. 0 online platform show that there was mainly the amyotrophic lateral sclerosis, tyrosine metabolism, melanogenesis, Nitrogen metabolism, Gap junction, Leukocyte transendothelial migration metabolism pathway enriched out in optic nerve head; and there was mainly amyotrophic lateral sclerosis, neurodegenerative disorders, prostate cancer, leukocyte transendothelial migration metabolism pathway enriched out in retina.
CONCLUSION:By understanding bioinformatics result, it seems optic were more sensitive than the retina to high intraocular pressure, and weather high expression of TYrp1 gene can be as a sensitive diagnostic item require more evidence back up. Functional enrich analysis of node gene showed that cytoskeleton reconstructed, molecular motor and nutrients transport function improve in optic; and in retina, the most prominent finding in retina was enrichment function modules were focus on regeneration, repairing and differentiation of cells, which remind that we should reinforce research on reparation of retina of primary glaucoma. Metabolic pathways enrichment analysis show that inflammatory response plays prominent place in optic and retina of primary glaucoma, because of the optic narrow and crowed anatomic shape, nutrient metabolism and substances transfer enrichment modules play an important role in optics of primary glaucoma.
6.Impact of preoperative nutritional risk on complications after radical cystectomy
Kun LIU ; Zongyuan XU ; Junsong MENG ; Guangbo FU ; Suo GU ; Min GU
Journal of Peking University(Health Sciences) 2015;(5):800-803
Objective:To evaluate whether urological patients at nutritional risk are at higher risk for complications after radical cystectomy than those not at nutritional risk .Methods:We performed a retro-spective observational study in the consecutive patients undergoing radical cystectomy between 2010 and 2013 .A total of 147 patients were enrolled in this study .The nutritional risk score was assessed preoper-atively by a specialized study nurse .The patients with NRS ( nutritional risk screening ,NRS2002) scores≥3 were considered to have nutritional deficiency .Postoperative complications were defined using the standardized Clavien-Dindo classification .Univariate and multivariate analyses were performed to identify the predictors of complications.Results:The patients aged ≥70 years(50.57%) were more prone to nutritional risk than those aged <70 years (31.67%, P=0.023).Of the 63 patients at nutritional risk, 39 (61.90%) presented with at least 1 complication compared with 29 of the 84 controls (34.52%, P=0 .001 ) .The patients at nutritional risk were at threefold risk for complications on binary Logistic analysis (OR=3.128,95%CI 1.538-6.361,P=0.002).The length of hospital stay of the patients at higher nutritional risk was longer than that of those without nutritional risk [(12.9 ±5.7) d vs.(10.4 ± 4.3) d, P=0.003].Conclusion:The patients aged ≥70 years are at higher nutritional risk than that of those aged <70 years .Patients at nutritional risk are more prone to complications after radical cystectomy .
7.Reliability and validity of Chinese version of the confidence after stroke measure questionnaire
Na HU ; Lingdi MENG ; Kun LIU
Chinese Journal of Behavioral Medicine and Brain Science 2018;27(3):277-280
Objective To examine the reliability and validity of the Chinese version of the confidence after stroke measure(CaSM).Methods The reliability and validity of the Chinese version of CaSM were tested among 280 stroke patients in Jinzhou city.All the data were analyzed by SPSS20.0 and AMOS17.0.Results The Cronbach's α of the overall scale was 0.974,and that of subscales were 0.941,0.954,0.908,the Guttman split-half coefficient was 0.960,the retest reliability was 0.891.All the entries-total scores were significantly positive related (r=0.542-0.901,P<0.05),I-CVI were 0.830-1.000,S-CVI/UA was 0.815 and S-CVI/Ave was 0.969.Three-factors (self-confidence,positive attitude,social confidence) models were got by using exploratory factor analysis and the communalities of the items were 0.468-0.828.KMO was 0.938,explaining 70.731% variance.Confirmatory factors analysis showed that the fit indices were x2/df=2.5918,RMSEA =0.077,GFI =0.930,AGFI =0.902,TLI =0.927,IFI =0.943,NFI =0.911,CFI =0.943,standardized regression coefficient were 0.48-0.90.The criterion-related validity between CaSM and SSEQ was positively related (r=0.781,P<0.01).Conclusions The Chinese version of the CaSM is a reliable and valid instrument which can be used to measure the level of confidence after stroke in China.
8.The relationship between aging perception and successful aging in the community elderly
Na HU ; Lingdi MENG ; Kun LIU
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(11):1042-1045
Objective To explore the relationship between ageing perception and successful aging.Methods The Brief Aging Perceptions Questionnaire (B-APQ) and Successful Aging Scale were used in 700 community elderly people.Results Different sex,age,degree of education,spouse status,income level,exercise had significantly impact on the score of aging perception and successful aging (P<0.05).The total mean score of successful ageing was (41.35± 10.66),and the total score of ageing perception was (47.43± 13.88).The total score of aging perception and the total score of successful aging were negative correlation(r =-0.768,P<0.01).Multiple liner regression results showed that positive,control positive and timeline-chronic dimension played significant roles in successful ageing(P<0.01).Conclusions Aging perception is associated with successful aging.Phychological and behavioral intervention for the elderly can promote the successful aging.
9.Analysis on 128 cases of advanced pancreatic cancer treated by high intensity focused ultrasound
Kun WANG ; Zhiqiang MENG ; Zhen CHEN ; Luming LIU ; Junhua LIN ; Zhenhua ZHOU ; Hao CHEN ; Peng WANG ; Lianyu CHEN
Chinese Journal of Hepatobiliary Surgery 2011;17(10):871-872
Objective To evaluate the analgesic efficacy and effect of high intensity focused ultrasound (HIFU) in the treatment of advanced pancreatic cancer.Methods128 patients with pancreatic cancer ( Ⅲ stage 41 case,Ⅳ stage 87 case) were treated by HIFU.According to some parameters,such as the clinical symptoms,imaging examinations and survival analysis to assess the efficacy of HIFU treatment.Results22.9% patients’ serum Ca19-9 decreased.The cancer pain was relieved in 72.5% patients.Coagulated-necrosis by CT/MRI examination was observed.PR,SD and PD of all were 11.7%,70.3% and 18.0% respectively.1-year survival rate was 16.7% for all patients,and median survival time was 7.0 months.1-year survival rate and median survival time for Ⅲ stage group were 28.5% and 9.0 months,that of 10.8% and 6.0 months for Ⅳ stage group respectively.ConclusionHIFU may benefit to advanced pancreatic cancer patient by stabilizing tumors,relieving pain and prolonging life expectancy with less side effects.
10.Reliability and validity of community commitment scale in community-dwelling elderly
Mei ZHANG ; Lina GUO ; Lingdi MENG ; Kun LIU
Chinese Journal of Behavioral Medicine and Brain Science 2021;30(8):751-755
Objective:To explore the reliability and validity of the community commitment scale (CCS) in community-dwelling elderly people.Methods:From May to August in 2020, a total of 526 community-dwelling elderly were investigated by community commitment scale, community's self-efficacy scale for preventing social isolation (CSES). SPSS 25.0 and AMOS 22.0 softwares were used to analyze the reliability and validity.Results:The overall Cronbach's α coefficient of the community commitment scale was 0.818, and the Cronbach's α coefficients of social and belonging dimensions were 0.750 and 0.777, respectively. The Guttman split-half reliability coefficients were 0.799-0.835, and the test-retest reliability was 0.802. Each item-to-total score correlations were 0.614-0.753 (all P<0.05). The item level content validity index (I-CVI) was 0.830-1.000, the scale level content validity index (S-CVI/UA) was 0.875, and the average content validity index (S-CVI/Ave) was 0.972. Two common factors were extracted by exploratory factor analysis, and the cumulative variance contribution rate was 57.019%. The confirmatory factor analysis all indicators reached the adaptation standard (χ 2/ df=2.638, RMSEA=0.079, GFI=0.957, AGFI=0.918, TLI=0.936, CFI=0.956, IFI=0.957), and standardized regression coefficients were 0.63-0.80. Conclusion:The Chinese version of the community commitment scale has good reliability and validity and can be used to evaluate the social isolation of the elderly in the community.