1.Expression of E-cadherin and ?-catenin in breast carcinoma and its′ significance
Zhen LIU ; Qiang ZHANG ; Wenfeng MA ; Dong YANG ; Ming QI
Chinese Journal of General Surgery 2000;0(11):-
Objective To detect the expression of E-cadherin and ?-catenin in breast carcinoma and analyze the relationship between E-cadherin and ?-catenin and the clinicopathological features. Methods The expression of E-cadherin and ?-catenin in breast cancer, paracarcinoma breast tissue, simple mastoplasia and atypical mastoplasia were detected by immunohistochemical method and the results were compared. Results The abnormal expression rates of E-cadherin and ?-catenin in breast cancer tissue were 51.9% and 61.1 %,respectively. Abnormal expression of E-cadherin was significantly correlated with histological grade. Abnormal expression of ?-catenin was significantly correlated with TNM staging, axillary lymph nodes metastasis and postoperative distant metastasis. COX multiple factor analysis showed that neither E-cadherin nor ?-catenin expression was an independent indicator for the prognosis of breast cancer. Conclusions Abnormal expressions of E-cadherin and ?-catenin are correlated with occurrence and development of breast carcinoma. Abnormal expressions of E-cadherin and ?-catenin are good indicators to judge invasion and metastasis of breast carcinoma.
2.The most promising strategy targeted against cancer stem cells.
Zhi-xiong LIN ; Li-juan YANG ; Shi-ming ZHEN
Chinese Medical Journal 2011;124(24):4303-4303
5.Rapid detection of extrinsic harmful contaminants using quantum dots-coated probes and their application prospects in traditional Chinese medicine.
Xi-Hui YANG ; Wei-Jun KONG ; Mei-Hua YANG ; Shi-Lin CHEN ; Ming ZHAO ; Zhen OUYANG
China Journal of Chinese Materia Medica 2013;38(23):3997-4005
The contamination of extrinsic harmful contaminants including mycotoxins, heavy metals and pesticides, etc, brings serious risks to traditional Chinese medicines (TCMs), further to human health. Due to their unique photoluminescence, chemiluminescence, electrochemical and electrochemiluminescence properties, semiconductor quantum dots (QDs) nanoparticles are widely used to immobilize bioprobes and biosensors, etc. In this review, the luminescence characteristics and specific ligands of QDs probles which are used to determine contaminants were summed up. Then, the applications of QDs-coated novel probes in the determination of mycotoxins, heavy metals and pesticides were discussed in detail. In addition, the contamination levels and characteristics of extrinsic harmful residues in TCMs were investigated. Further, the maximum levels of those contaminants in TCMs were compared with those set by various countries. Finally, the future development trends and problems of QDs-coated probes in the determination of those extrinsic residues in TCMs were prospected.
Drug Contamination
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prevention & control
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Humans
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Medicine, Chinese Traditional
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methods
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Nanotechnology
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instrumentation
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methods
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Quantum Dots
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Safety
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Time Factors
6.Status on knowledge, attitudes, behavior regarding nutrition and food safety among 4-6 grade students from Chinas' two poverty-stricken counties
Zhen PENG ; Fang YANG ; Zhen-Qiu SUN ; Ming-Zhi LI
Chinese Journal of Epidemiology 2013;34(7):673-676
Objective To investigating knowledge,attitudes,current behavior among primary school students on nutrition and food safety in two State-level poverty-stricken counties,and to explore the best educational model on nutrition and food safety.Methods 478 pupils at 4-6 grades were selected,using the method of stratified cluster sampling and questionnairs.Results The average score on knowledge was 18.66 ± 3.75,with the qualified rate as 61.09% (the highest was 60.6%).The average score in the section of attitude was 5.82 ± 1.50.More than 97% of the students agreed that it was necessary to receive knowledge on nutrition and food safety.The average score of behavior was 8.52 ± 2.56.Conclusion Rate of awareness on knowledge of nutrition and food safety had greatly improved among the students under study.Their habit tended to be more regular.However,we also noticed the gap between knowledge and behavior on this issue.
7.Relation between Body Height and Combined Length of Manubrium and Mesosternum of Sternum Measured by CT-VRT in Southwest Han Population.
Ying-zhen LUO ; Meng TU ; Fei FAN ; Jie-qian ZHENG ; Ming YANG ; Tao LI ; Kui ZHANG ; Zhen-hua DENG
Journal of Forensic Medicine 2015;31(3):196-199
OBJECTIVE:
To establish the linear regression equation between body height and combined length of manubrium and mesostenum of sternum measured by CT volume rendering technique (CT-VRT) in southwest Han population.
METHODS:
One hundred and sixty subjects, including 80 males and 80 females were selected from southwest Han population for routine CT-VRT (reconstruction thickness 1 mm) examination. The lengths of both manubrium and mesosternum were recorded, and the combined length of manubrium and mesosternum was equal to the algebraic sum of them. The sex-specific linear regression equations between the combined length of manubrium and mesosternum and the real body height of each subject were deduced.
RESULTS:
The sex-specific simple linear regression equations between the combined length of manubrium and mesostenum (x3) and body height (y) were established (male: y = 135.000+2.118 x3 and female: y = 120.790+2.808 x3). Both equations showed statistical significance (P < 0.05) with a 100% predictive accuracy.
CONCLUSION
CT-VRT is an effective method for measurement of the index of sternum. The combined length of manubrium and mesosternum from CT-VRT can be used for body height estimation in southwest Han population.
Asian People
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Body Height
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Female
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Forensic Anthropology
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Humans
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Linear Models
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Male
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Manubrium/anatomy & histology*
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Regression Analysis
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Sternum/anatomy & histology*
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Tomography, X-Ray Computed
8.Qilin Pills combined with clomiphene for idiopathic oligoasthenozoospermia.
Ming-gen YANG ; Gou-da ZHENG ; Zhen-qiang XU ; Hai-li LIN ; Zhi-ming ZHUANG ; Chao-xian ZHANG
National Journal of Andrology 2015;21(6):549-554
OBJECTIVETo observe the therapeutic effect of Qilin Pills combined with clomiphene on idiopathic oligoasthenospermia.
METHODSWe randomly assigned 300 patients with idiopathic oligoasthenospermia to a trial (n = 156) and a control group (n = 144) to be treated with Qilin Pills (6 g, tid) combined with clomiphene (50 mg, qd) and clomiphene alone (50 mg, qd), respectively, both for a course of 12 weeks. Before and after 4, 8, and 12 weeks of medication, we determined sperm concentration, the percentages of grade a and grade a + b sperm, sperm motility, and the levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone (T), followed by evaluation of the clinical efficacy of Qilin Pills with the pregnancy rate in the patients' spouses as the secondaty therapeutic indexes.
RESULTSCompared with the baseline, both groups of patients showed remarkably improved semen parameters and hormone levels after treatment (all P < 0.01). After 4, 8, and 12 weeks of medication, statistically significant differences were observed between the trial and control groups in sperm concentration ([17.06 ± 2.24] vs [15.07 ± 2.48], [22.10 ± 2.65] vs [18.11 ± 2.97], and [28.13 ± 3.59] vs [21.21 ± 3.60] x 10(6)/mL, P < 0.01), the percentage of grade a sperm ([15.03 ± 2.39] vs [13.08 ± 2.51], [21.08 ± 3.16] vs [16.04 ± 3.05], and [28.08 ± 4.70] vs [20.14 ± 4.74]%, P < 0.01), the percentage of grade a + b sperm ([30.10 ± 5.07] vs [26.21 ± 3.96], [38.08 ± 5.64] vs [30.07 ± 4.80], and [48.04 ± 6.49] vs [35.28 ± 4.77]%, P < 0.01), sperm motility ([42.04 ± 4.86] vs [40.29 ± 4.19], [52.05 ± 5.58] vs [48.03 ± 4.40], and [65.03 ± 5.13] vs [56.67 ± 4.99]%), the FSH level ([7.75 ± 1.38] vs [7.20 ± 1.17], [10.83 ± 1.23] vs [9.10 ± 1.32], and [14.22 ± 0.84] vs [12.06 ± 1.45] IU/L, P < 0.01), the LH level ([10.05 ± 1.68] vs [9.18 ± 1.54], [13.96 ± 1.68] vs [11.99 ± 1.71], and [19.01 ± 2.42] vs [15.86 ± 2.08] IU/L, P < 0.01) and the T level ([19.19 ± 192] vs [18.34 ± 1.79] [21.06 ± 1.63] vs [20.06 ± 1.56], and [24.63 ± 1.06] vs [22.03 ± 1.49] nmol/L, P < 0.01). The pregnancy rate in the patients' spouses was significantly higher in the trial than in the control group at 4, 8, and 12 weeks (1.92 vs 0.69, 4.81 vs 3.47, and 11.54 vs 8.33%, P < 0.01). There were no statistically significant differences in drug tolerance between the two groups (P > 0.05). No obvious adverse reactions were observed.
CONCLUSIONQilin Pills combined with clomiphene can evidently improve the seminal quality and hormone level of oligoasthenospermia patients with no obvious adverse events. However, its long-term efficacy and tolerance deserve further clinical investigation.
Asthenozoospermia ; blood ; drug therapy ; Clomiphene ; therapeutic use ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Fertility Agents ; therapeutic use ; Follicle Stimulating Hormone ; blood ; Humans ; Luteinizing Hormone ; blood ; Male ; Pregnancy ; Pregnancy Rate ; Semen ; Sperm Count ; Sperm Motility ; Spermatozoa ; Testosterone ; blood
9.Social participation and needs for rehabilitation services of the disabled in Guangdong Province HUANG
feng DONG ; Xi CHEN ; Ai-hua LIN ; Shao-zhen CHEN ; Ming-xu JIANG ; Zhi-ming YANG ; Chun-guang GONG ;
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(3):208-211
Objective To explore the relationship between social participation and needs for rehabilitation of the disabled in Guangdong Province and to make a proposal for developing the rehabilitation strategies. Meth-ods The data of the Second National Sample Survey of Disabled Persons in Guangdong Province was used in this study. Ranked data analysis was made with the sub-items of the social participation assessment and the main needs of the disabled individuals. Results Significantly statistical differences were revealed with regard to the constitu-ent ratio of needs for rehabilitation services among people with different degrees of difficulties in social participation caused by hearing and visual impairments as well as physical and mental disabilities. No significant difference was found in terms of the constituent ratio of rehabilitation needs among those with difficulties in speech and those with psychiatric diseases. The major rehabilitation needs focused on medical service, assistive apparatus support and functional trainings. Conclusions The rehabilitation needs were different among different categories of disabled persons. Rehabilitation services should be provided accordingly.
10.Design and synthesis of photoaffinity biotin labelled 2'-O-propargyl-guanosine.
Lu-xin NA ; Xin LIU ; Zhuo-ming MENG ; Zhu GUAN ; Li-he ZHANG ; Zhen-jun YANG
Acta Pharmaceutica Sinica 2015;50(1):59-63
Photoaffinity labeling is widely applied to demonstrate targets of small molecule ligands. In this paper, biotin photoaffinity labeled molecule with propargyl group 1 has been designed and synthesized, followed it's labeling of N2-acetyl-2'-O-propargyl guanosine 9 by "click chemistry". This technology presents delight development potential in labeling of second messenger cyclic nucleotide, antisense oligonucleotide or siRNA.
Biotin
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chemistry
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Click Chemistry
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Guanosine
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chemical synthesis
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chemistry
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Ligands
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Photoaffinity Labels