1.The relationship among big five-personality, resilience and general health of new recruits
Xiaoxia CHEN ; Mingjie ZHOU ; Jianxin ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(6):547-548
Objective To discuss the relationship among Big Five-Personality, Resilience and General Health of the new recruits in a certain troop. Methods 205 new recruits completed the questionnaires, which include NEO Five-Factor Inventory ( NEO-FFI) , Connor-Davidso Resilience Meter (Chinese version) , and General Health Questionnaire (GHQ-12). Results The neuroticism trait of personality positively correlated to General Health( r = 0.50, P<0.001) and significantly predicted mental disease (β =0.4, P<0.01). The self-strengthening dimension of resilience was negatively related to general health ( r = - 0. 51 , P<0. 01 ). Furthermore, self-strengthening played partial mediating role between neuroticism and general health ( Sobel Z =2. 92, P<0. 01). Conclusion The neuroticism trait of personality is a risk factor for new recruits'mental health, while self-strengthening is a protective factor for it.
2.Curative Effect Observation of Ginkgo Biloba Extract on Back Chapped Skin Model in Rats
Ge SHAO ; Ying CHEN ; Mingjie PAN
China Pharmacist 2016;19(4):656-659
Objective:To determine the curative effect of Ginkgo Biloba extract on the back chapped skin in SD rats. Methods:Totally 60 SD rats were randomly divided into 6 groups with 10 rats in each. One group was the blank control group, while the other five groups with the same back chapped skin were respectively treated with different therapy regimen, namely one group was the model group without any treatment, one group was urea group treated with the commercially available urea, and the last three groups were re-spectively treated with Ginkgo Biloba extract at the dose of 5%, 1% and 0. 2%. The pathological tissue was observed after HE stai-ning, and the content of hydroxyproline ( Hyp) in skin was determined by alkaline hydrolysis. Results:The skin lesion and the score of pathological section were studied and the content of Hyp in the damaged skin was determined. The comprehensive score for the groups was 0, 13. 2, 7. 4, 11. 0, 5. 8 and 6. 6, respectively, and the content of Hyp was (4. 57 ± 0. 07), (2. 41 ± 0. 27), (3. 29 ± 0.57), (2.55 ±0.31), (3.24 ±0.26) and (3.37 ±0.24) μg·mg-1,respectively. There was significant difference in the curative effect between the Ginkgo Biloba extract groups at high dose (5%) and medium dose (1%) and the model group (P<0. 05), which showed no obvious difference when compared with the urea group (P>0. 05). Conclusion:The extract of Ginkgo Biloba has a certain effect on the back chapped skin in SD rats, which may contribute to the external preparations of Ginkgo Biloba extract.
3.Effects of cholesterol overload on visfatin secretion from adipocytes and the mechanism
Mingjie CHEN ; Zhihong WU ; Yaqing CHEN ; Hairong GONG ; Xiangping LI
Chinese Journal of Endocrinology and Metabolism 2012;28(2):153-156
3T3-L1 adipocytes were cultured and differentiated into mature adipocytes in vitro. The adipocytes were intervened by ACAT inhibitor( 2 μg/ml) and ox-LDL with various concentrations (0,25,50,75,and 100 μg/ml)for 48 h,ACAT inhibitor( 2 μg/ml) and ox-LDL( 50 μg/ml) at the 0,6,18,36,and 48 h,or ACAT inhibitor( 2 μg/ml),ox-LDL( 50 μg/ml),and TUDCA with various concentrations(0,100,200,and 400 μ mol/L)for 48 h,respectively.The levels of visfatin in supernatant were examined by ELISA and the expressions of protein GRP78 and CHOP in adipocytes were detected by Western blot.After the adipocytes were treated with ACAT inhibitor and ox-LDL at different concentrations for 48 h,the cholesterol concentration and the expressions of GRP78 and CHOP protein in adipocytes and the visfatin levels in the supernatant fluid were increased with the increase of the ox-LDL concentration.The differences had statistical significance in the experimental groups compared with blank control group( all P<0.05 ).After the intervention with ACAT inhibitor and ox-LDL for different durations,the expressions of GRP78 and CHOP protein in adipocytes and the visfatin levels in the supernatant fluid were up-regulated in a timedependent manner.The differences between experimental groups and blank control had statistical significance( all P<0.05 ).After the intervention with ACAT inhibitor,ox-LDL,and different concentrations of TUDCA for 48 hours,the expressions of GRP78 and CHOP protein in adipocytes and visfatin levels in the supernatant fluid were down-regulated in a dose-dependent manner and as compared with blank control group the difference were statistically significant( all P< 0.05 ).The increase of cholesterol load in adipocyte may promote the visfatin secretion,denoting that the mechanism might be due to the enhancement of endoplasmic reticulum stress in aidpocytes.
4.Moderation effects of justice sensitivity between personality and public mood in volunteers
Zhe YU ; Hao WANG ; Chen CHEN ; Yixin ZHOU ; Mingjie ZHOU
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(1):55-59
Objective To explore the relationship between big-five personality,and public mood of volunteers,and to find out the moderator effect of justice sensitivity.Methods A total of 1 022 volunteers were investigated.The Big-Five Inventory (BFI),Public Mood Scale (PMS),Justice Sensitivity Inventory (JSI) were applied to all subjects.Results The average score was (19.77±4.49) for extraversion,(26.69± 4.13) for agreeableness,(23.33±5.37) for conscientiousness,(12.49±4.91) for neuroticism,(24.95±5.44)for openness,(8.78±3.23) for positive public mood,(3.46±3.06) for negative public mood and correlated with (26.85± 10.55) for observer sensitivity.The extraversion,agreeableness,conscientiousness and openness were correlated with positive public mood(β=0.31,P<0.01;β=0.25,P<0.01;β=0.29,P<0.01;β=0.26,P<0.0 1),and negatively correlated with public mood (β=-0.14,P<0.01;β=-0.29,P<0.01;β=-0.20,P<0.01;β=-0.08,P<0.01).Neuroticism was negatively correlated with positive public mood (β=-0.27,P<0.01),and positively correlated with negative public mood (β=0.31,P<0.01).The interaction effect of agreeableness and observer sensitivity negatively correlated with positive public mood,negative public mood (β=-0.09,P<0.01;β=-0.07,P<0.05).The interaction effect of neuroticism and observer sensitivity was positively correlated with positive public mood (β=0.08,P<0.01).Conclusion Observer sensitivity plays a regulative role between big-five personality and mental health,and can slow the negative impact of low agreeableness to positive public mood,strengthen the impact of low agreeableness to negative public mood,and slow the negative impact of high neuroticism to positive public mood.
5.Cloning and sequence analysis of V_H and V_L gene of anti-CD3 McAb
Nan ZHANG ; Mingjie CHEN ; Jing CHEN ; Al ET
Chinese Journal of Immunology 2000;0(09):-
Objective:To amplify and sequence of the variable region genes of anti CD3 McAb.Methods:The V H?V L genes were amplified by RT PCR from total RNA that were extracted from WuT3 hybridoma.Recombinant cloning vector was constructed and sequenced after the enzyme digestion.Results:It showed that V H gene consisted of 363 bp encoding amine acid residues,belongs to mouse heavy chain subgroup IIB;V L gene consisted of 330 bp encoding amine acid residues,belongs to mouse ? light chain subgroup III.Comparing with Kabat database,the V H?V L genes were in agreement with the characterization of DNA sequences present in the mouse Ig V H?V L regions respectively.Conclusion:The success of cloning of the V H?V L genes of WuT3 McAb lay a good foundation for the construction and expression of chimeric antibody.
6.Factors related to heterotopic ossifications after treatment of bi-columnar acetabular fractures
Yuqiang SUN ; Jihua LIANG ; Shengbao CHEN ; Mingjie TANG ; Bingfang ZENG
Chinese Journal of Orthopaedic Trauma 2009;11(12):1101-1104
Objective To discuss factors influencing the heterotopic ossifications (HO) after treatment of bi-column acetabular fractures. Methods One hundred and ninety-three cases of bi-column acetabular fractures were followed up, including 147 males and 46 females with an average age of 34. 4 years. Thirty-one cases were associated with craniocerebral trauma. The interval between injury and surgery was less than 1 week in 15 cases, 1 to 2 weeks in 121 cases, 2 to 3 weeks in 34 cases, and over 3 weeks in 23 cases. Factors that might have influenced HO, including surgical method, associated injury, and interval between injury and surgery, were analyzed retrospectively. Results All the cases were followed up for an average of 44. 2 (14 to 84) months. The mean operation time was 238 (150 to 330) minutes, and the average blood loss was 1453 (450 to 4400) mL. The incidence rate of HO was 39. 9% (77 in 193 cases), including 39 cases of degree one, 23 cases of degree two, and 15 cases of degree three. Of the 77 cases associated with HO, 14 had craniocerebral trauma and 63 did not (χ~2 = 0. 019, P = 0. 891) . HO was found in 2 cases that had been operated on in less than 1 week, 38 cases in 1 to 2 weeks, 21 cases in 2 to 3 weeks, and 16 cases in over 3 weeks. The Spearman correlation analysis between HO degree and clinical result showed no correlation ( R = 0. 041, P =0. 722). Only 15 cases (7. 8% ) were associated with HO after the debridement of the necrotic gluteus minimus. Conclusions HO after surgery for bi-column acetabular fractures may not be correlated with craniocerebral trauma, but highly correlated with the interval between injury and surgery. Debridement of necrotic gluteus minimus and other muscles can reduce the incidence of HO.
7.Microanatomical study of the area in which the facial nerve being easy to damage in mastoid surgery
Yuefeng HAN ; Mingjie ZHANG ; Deshang CHEN ; Hui LI ; Lanzhu ZHOU
Chinese Journal of Microsurgery 2011;34(3):211-214
Objective To study the microanatomy of the area in which the facial nerve being easy to damage in mastoid surgery, in order to provide microanatomical datas for the clinical works. Methods In 20 adult wet skull specimens (40 temporal bones), the segments of facial nerve and their adjacent structures in the area in which the facial nerve being easy to damage were observed according to operation of mastoid surgery. Results The length of the horizontal segment was (8.85 ± 1.01) mm (7.10-11.25 nun), the diameter was (1.88 ± 0.65) mm (1.55-1.90 mm); The angle opening towards anterior direction between horizontal segment and vertical segment was (115.50 ± 6.89°) (109.5°-128.6°); The vertical distance from the cochlearform process to this segment was (1.89 ± 0.58) mm (0.90-3.05 mm); The vertical distance from the midpoint of the base of stapes to this segment was (1.92 ± 0.52) mm (1.44-2.56 mm); The vertical distance from the head of the stapes to this segment was (2.30 ± 0.85) mm (1.97-3.11 mm); The angle towards posterior direction between horizontal segment of facial nerve and tympanic tegmen was (28.5°± 3.66°) (25.8°-31.5°); The diameter of the pyramidal segment of facial nerve was (1.89 ± 0.65) mm (1.56-1.88 mm); The distance between the su mmit of pyramidal segment of facial nerve and the apex of shor limb of incus was (2.55 ± 0.21) mm (2.10-2.90 mm); The distance from the su mmit to the eminence of the lateral semicircular canal was (2.86 ± 0.31) mm (2.23-3.56 mm); The diameter of the proximal part of vertical segment of facial nerve was (2.13 ± 0.13) mm (1.90-2.40 mm); The angle towards superior direction between verical segment of facial nerve and chorda tympani nerve was (38.60 ± 1.99°) (28.5°-52.5°); The vertical distance from the top of the pyramidal eminence to the vertical segment of the facial nerve was (2.05 ± 0.65) mm (1.85-2.36 mm). Conclusions The eminence of the lateral semicircular canal, short limb of incus, cochlearform process, tympanic tegmen, stapes, pyramidal eminence, chorda tympani nerve in the area are important landmarks to be located in mastoid surgery. The anatomic relations in this area are complicated and compact. Anatomical knowledge is very important to the surgery of this area.
8.Study on the clinical treatment method of cervical lesions in elderly patients with ASCUS
Junfeng GAI ; Xiaojun CHEN ; Mingjie KOU ; Lei YANG
Chinese Journal of Primary Medicine and Pharmacy 2014;21(1):44-46
Objective To study the clinical treatment methods for properties of unknown in elderly patients with atypical squamous cell of undertermind significant and above cervical lesions.Methods According to the clinical grouping of ASCUS in elderly patients with cervical lesions of different treatment methods,observation group 1 (348 cases) underwent colposcopy;observation group 2(316 cases) for high-risk human papillomavirus(HPV) detection,HPV positive colposcopy ;observation group 3 (129 cases) of cervical cytology examination regularly,squamous intraepithelial lesion colposcopy,compared three groups of clinical treatment.Results Liquid based cytology and three groups of 574 patients (TCT) and colposcopy and cervical biopsy,the results of intraepithelial neoplasia(C IN) above cervical lesions in 223 cases(38.9%),in which CIN Ⅰ 136 cases(23.7%),CIN Ⅱ in 64 cases(11.2%),CIN Ⅲ 20 cases(3.5%),3 cases of carcinoma in situ(0.5%) ;the group1 were observed in 348 cases,348 cases underwent colposcopy biopsy(100%),CIN Ⅱ above 36 cases(10.3%) were observed in the group 2;213 cases of colposcopy biopsy(67.4%),CIN Ⅱ above 38 cases (12%) were observed in the group 3 ; colposcopy examination in 13 cases (10.1%),3 cases of biopsy CIN Ⅱ of the cases(2.3%).Biopsy of CIN Ⅱ above the detection rate,the observation group 1,observation of the 2 groups had no significant differences(P > 0.05),and observe the difference between the 3 groups was statistically significant(x2 =7.014,9.156,all P < 0.05).Conclusion High-risk HPV detection of shunt ASCUS can reduce cervical lesions treatment process misdiagnosis,missed diagnosis and treatment of the problem of excessive.
9.Inhibitory effects of Sanguisorba officinalis L.on MRSA biofilms formation
Xin WANG ; Fei CHEN ; Long WANG ; Kunpeng XIE ; Mingjie XIE
Chinese Journal of Biochemical Pharmaceutics 2016;36(9):27-29
Objective To investigate inhibitory effects of Sanguisorba officinalis L.on biofilms of MRSA41577.Methods Congo red agar method and crystal violet semi-quantitative method were used to detect the biofilms-forming ability of tested strains; TTC assay was used to detect inhibitory effects of Sanguisorba officinalis L.on biofilms formation and mature biofilms of MRSA41577,as well as effects of Sanguisorba officinalis L.in combination with vancomycin on mature biofilms of MRSA41577.Results Sanguisorba officinalis L.showed significant inhibitory both on biofilms formation and mature biofilms, minimum inhibitory concentration(MIC) and minimal bactericidal concentration(MBC) of biofilms formation were 1 mg/mL and 8 mg/mL,MIC of mature biofilms was 4 mg/mL.The sensitivity of mature biofilms to vancomycin was greatly increased when Sanguisorba officinalis L.was combined with vancomycin with subinhibitory concentrations.Sanguisorba officinalis L.at 1/4 MIC can inhibit mature biofilms when combined with vancomycin at 4 μg/mL, while vancomycin didn't show inhibitory effects on mature biofilms when concentrations were below 64 μg/mL. Conclusion Sanguisorba officinalis L.has significant inhibitory on biofilms formation, the mechanism may be related to Sanguisorba officinalis L.destroyed biofilms and make vancomycin penetrate into the biofilms to finish the bactericidal activity.
10.Effect of total glucosides of paeony on the expression of interleukin-18 in human HaCaT keratinocytes and its related signaling pathways
Hongying ZHANG ; Xiaoyan WANG ; Xingyu CHEN ; Mingjie PANG ; Tongxin SHI
Chinese Journal of Dermatology 2014;47(10):723-727
Objective To evaluate the effect of total glucosides of paeony (TGP) on the expression of interleukin-18 (IL-18) in human HaCaT keratinocytes,and to explore the roles of extracelluar signal-regulated protein kinase1/2 (ERK1/2) and c-Jun N-terminal kinase 1/2 (JNK1/2) signaling pathways in the effect.Methods Some cultured human HaCaT keratinocytes were classified into three groups:control group treated with dimethyl sulfoxide (0.031%),TGP groups treated with 6 different concentrations (0.5,2.5,12.5,62.5,125.0 and 312.5 mg/L) of TGP respectively,inhibitor groups treated with TGP of 125 mg/L after 2-hour pretreatment with PD98059 (an ERK1/2 inhibitor) and SP600125 (a JNK1/2 inhibitor) of 10 μmol/L respectively.After additional culture for 48 hours,reverse transcription (RT)-PCR was performed to measure the mRNA expression level of IL-18,and enzymelinked immunosorbent assay (ELISA) to determine the level of IL-18 protein in the culture supematant of HaCaT cells.Some HaCaT keratinocytes were classified into two groups to be treated with TGP of 125 mg/L for 15,30 and 60 minutes with or without the pretreatment with PD98059 and SP600125 of 10 μmol/L; then,Western blot was carried out to determine the phosphorylation levels of ERK1/2 and JNK1/2 in HaCaT cells.Results The levels of IL-18 mRNA and protein in culture supernatant were significantly increased by TGP of 0.5 and 2.5 mg/L,but decreased by TGP of 62.5 and 125.0 mg/L,and TGP of 125.0 mg/L showed the strongest inhibitory effect.After treatment with TGP of 125.0 mg/L,the level of phosphorylated ERK1/2 in HaCaT cells peaked at 15 minutes (0.448 ± 0.018),decreased to 0.213 ± 0.005 at 30 minutes and 0.217 ± 0.005 at 60 minutes,with significant differences between TGP-treated and untreated cells at 15 minutes (0.448 ± 0.018 vs.0.204 ± 0.005,P< 0.05) but not at 30 or 60 minutes (both P > 0.05).The phosphorylation level of ERK1/2 was 0.237 ± 0.010 in HaCaT cells pretreated with PD98059 prior to the treatment with TGP,significantly different from that in HaCaT cells treated with TGP only (P <0.01).TGP of 125.0 mg/L had no obvious effect on JNK phosphorylation,and there was no significant difference in the level of phosphorylated JNK1/2 between HaCaT cells untreated and those treated with TGP of 125.0 mg/L for different durations (all P > 0.05).Conclusions TGP can inhibit the expression of IL-18 mRNA and protein in HaCaT cells,likely through the ERK1/2 signaling pathway.