1.Attachment characteristics in children with emotional disorder and its association with parental attachment characteristics
Dandan WU ; Yinxin CHEN ; Shasha LI ; Zhao ZHAO ; Tunong CHEN
Chinese Journal of Behavioral Medicine and Brain Science 2013;22(10):896-898
Objective To explore the attachment of children with emotional disorder,and provide a theoretical basis for mental intervention.Methods A total of 70 outpatients with emotional disorder and their parents and 140 normal children and their parents were enrolled.All the children and their parents were assessed with Adolescent Attachment Inventory and Experiences in Close Relationships Inventory and General demographic information inventory.Results There were statistical significances in family proximity((12.76 ± 3.69) vs (15.47 ±3.05)),friend proximity ((14.23 ± 3.84) vs (15.82 ± 3.06)) and family negativity ((12.84 ± 3.42) vs (10.46 ± 2.94)) of two groups (all P < 0.05).There were statistical significances in maternal attachment avoidance ((3.60 ± 0.70) vs (3.84 ± 0.63)) and anxiety ((3.23 ± 0.77) vs (3.37 ± 0.79)) of two groups (all P <0.05).In emotional disorder group,there was a significantly negative relation (P < 0.01) between parental anxiety dimension and friend dependence factor.Conclusion The attachment of children with emotional disorser is low family and friends proximity,higher family negativity.
4.Selection and characterization of salt-tolerant calli of Taraxacum officinale.
Xinguo ZHANG ; Xianyang CHEN ; Dan JIANG ; Yinxin LI
Chinese Journal of Biotechnology 2008;24(7):1202-1209
In order to obtain salt-tolerant calli of Dandelion (Taraxacum officinale Weber), calli were induced from leaf explants of Dandelion on Murashige and Skoog's medium supplemented with 2.0 mg/L 6-benzyladenine and 0.5 mg/L 2,4-dichlorophen oxyacetic acid With 1.5% NaCl as selection pressure, most calli became brown and dead, whereas some new cell clusters appeared at the edge of the brown calli after 2 to 3 weeks. The survived cells were picked out and sub-cultured every 3 weeks onto the fresh selection medium and salt-tolerant calli were finally obtained through 4 continuous selections on the selection medium supplemented with 1.5% NaCl. Salt-tolerant calli increased steadily under a fixed NaCl stress though their relative growth rate decreased with increased NaCl concentration whereas the control calli which were sub-cultured by 4 continus selections on salt free medium ceased to grow under the same condition. This result indicated that the salt-tolerance of the selected calli is improved and this character is stable. Compared with the control, the SDS-PAGE pattern of the salt-tolerant calli had a unique 34 kD protein band. Its 30 kD and 18 kD protein bands were up-regulated. Further more, within the NaCl stress range up to 1.5%, the activities of antioxidant enzymes such as super oxidase dimutase, peroxidase and catalase, and the proline contents of the salt-tolerant calli were higher than those of the control. The results indicated that the selected calli with improved and stable salt tolerance were cell variants. The accumulation of the organic compatible solutes including proteins and the enhanced antioxidant capabilities in the salt tolerant calli are the two ways for them to regulate their osmotic homeostasis and alleviate the secondary reactive oxygen spexies damage respectively.
Adaptation, Physiological
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Cell Culture Techniques
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methods
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Drug Tolerance
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physiology
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Salt-Tolerant Plants
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genetics
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growth & development
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physiology
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Sodium Chloride
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pharmacology
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Stress, Physiological
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Taraxacum
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genetics
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growth & development
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physiology
5.Selection and identification of salt-tolerant variants of Taraxacum officinale.
Xinguo ZHANG ; Yinxin LI ; Hua CHEN ; Wuliang SHI
Chinese Journal of Biotechnology 2008;24(2):262-271
In order to obtain salt-tolerant variant plants of Dandelion (Taraxacum officinale Weber), the leaf discs were excised from 20 to 30-day old seedlings to produce callus, then the induced calli were transferred to selection mediums containing 1.5% NaCl. After regenerating and rooting, these salt-tolerant calli finally developed into 12 variant plantlets. Compared with the wild-type, these regenerated plants produced more trichomes on their leaves, and had larger leaves and shorter petioles. Additionally, the dumpy roots and an approximately 2-cm bract in middle parts of the floricanes were clearly observed in these salt-tolerant plants. By RAPD (Random Amplified Polymorphic DNA) and SDS-PAGE analysis, these salt-tolerant plants showed differences from the control at DNA and protein levels. With 1.5% NaCl treatment, the antioxidant enzyme activity, proline content, and flavonoid concentration were higher in these salt-tolerant plants, whereas maloaldehyde concentration was significantly lower. Salt-tolerant lines of T. officinale showed stronger anti-oxidative activity and higher flavonoid contents.
Culture Techniques
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methods
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Drug Tolerance
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genetics
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Flavones
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analysis
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Genetic Variation
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genetics
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Plant Leaves
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genetics
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growth & development
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Random Amplified Polymorphic DNA Technique
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Salt-Tolerant Plants
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genetics
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growth & development
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Seedlings
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genetics
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growth & development
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Sodium Chloride
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pharmacology
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Superoxide Dismutase
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analysis
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Taraxacum
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genetics
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growth & development
6.Risk factors and follow-up of positive resection margins after endoscopic submucosal dissection for early gastric cancer and precancerous lesions
Yinxin WU ; Yanqin XU ; Yangyang CHEN ; Jingying LIN ; Qilin LUO ; Wei LIANG
Chinese Journal of Digestive Endoscopy 2023;40(10):798-805
Objective:To investigate the risk factors for positive margins after endoscopic submucosal dissection (ESD) for early gastric cancer and precancerous lesions, and to follow up the recurrence.Methods:The endoscopic, clinical and pathological data of 489 patients with early gastric cancer or precancerous lesions treated by ESD in Fujian Provincial Hospital from January 2015 to December 2020 were retrospectively collected. They were categorized into a negative group (371 cases), a low-grade intraepithelial neoplasia (LGIN)-positive group (79 cases), and a high-grade intraepithelial neoplasia (HGIN) or cancer-positive group (39 cases) according to the different margins. Logistic regression was used to analyze the risk factors for positive margins, the Kaplan-Meier method and log-rank test to compare the risk of recurrence in different margin groups, and the Cox proportional risk regression model to explore the associated factors that caused recurrence in those with positive margins.Results:In the 489 patients, the positive resection margin rate was 24.1% (118/489), of which HGIN or cancer accounted for 33.1% (39/118). LGIN-positive margin was more likely to occur for lesions larger than 10 cm 2 ( OR=1.58, 95% CI: 1.13-2.08, P=0.033), in the presence of ulcers ( OR=2.92, 95% CI: 1.37-4.54, P=0.012) and for 1-2 years of ESD experience [ OR=1.69 (1-2 years VS 5-6 years), 95% CI: 1.51-1.94, P=0.026]. Those located in the upper 1/3 of the stomach [ OR=3.64 (upper 1/3 VS lower 1/3), 95% CI: 1.27-5.50 P=0.010] and submucosal infiltration (SM1 VS M1+M2: OR=2.37, 95% CI: 1.04-5.72, P=0.028; SM2 VS M1+M2: OR=6.08, 95% CI: 1.31-12.75, P=0.002) were high risk factors for HGIN/cancer-positive margin. Postoperative follow-up was completed in 337 patients, with a median follow-up time of 26.0 (22) months. The overall cumulative recurrence was 5.3% (18/337), 2.1% (5/239) in the negative margin group, 8.3% (6/72) in the LGIN-positive margin group, and 26.9% (7/26) in the HGIN/cancer-positive group, with statistically significant differences among the 3 groups ( P<0.05). Risk factors for recurrence in the positive margin group included positive basal margins ( HR=5.17, 95% CI: 1.47-14.09, P=0.011) and SM1 invasion ( HR=4.82, 95% CI: 1.38-14.77, P=0.013). Conclusion:Positive margins after ESD for early gastric cancer and precancerous lesions are related to lesion location, size, presence of ulceration, depth of infiltration, and endoscopists' experience. The overall risk of recurrence is higher in those with positive margins than in those with negative margins. Additional treatments need to be considered comprehensively for those with submucosal invasion and positive basal margins.