2.Roles of metabolic syndrome and insulin resistance in carcinogenesis of colon.
Chinese Journal of Pathology 2006;35(2):110-112
Animals
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Colorectal Neoplasms
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blood
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etiology
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Humans
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Hyperinsulinism
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blood
;
complications
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Insulin
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blood
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Insulin Resistance
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Insulin-Like Growth Factor Binding Proteins
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blood
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Insulin-Like Growth Factor I
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metabolism
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Metabolic Syndrome
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blood
;
complications
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Receptor, IGF Type 1
;
blood
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Receptor, Insulin
;
blood
3.Hereditary polyposis: update on molecular genetics and clinicopathologic features.
Chinese Journal of Pathology 2007;36(6):418-422
Adenomatous Polyposis Coli
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genetics
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metabolism
;
pathology
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Bone Morphogenetic Protein Receptors, Type I
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genetics
;
metabolism
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Colorectal Neoplasms, Hereditary Nonpolyposis
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genetics
;
metabolism
;
pathology
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Genes, APC
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Genetic Predisposition to Disease
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Hamartoma Syndrome, Multiple
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genetics
;
metabolism
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pathology
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Humans
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Microsatellite Instability
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Mutation
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PTEN Phosphohydrolase
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genetics
;
metabolism
;
Peutz-Jeghers Syndrome
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genetics
;
metabolism
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pathology
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Protein-Serine-Threonine Kinases
;
genetics
;
metabolism
;
Proto-Oncogene Proteins B-raf
;
genetics
;
metabolism
4.Visceral syndrome differentiation in traditional Chinese medicine and the changes of nutrition status or blood gas analysis in patients with chronic obstructive pulmonary disease
Bing MAO ; Wen LI ; Wenqiong LIANG
Journal of Integrative Medicine 2007;5(5):506-9
OBJECTIVE: To investigate the relationship between visceral syndrome differentiation in traditional Chinese medicine (TCM) and the changes of nutrition status or blood gas analysis in patients with chronic obstructive pulmonary disease (COPD). METHODS: Sixty patients with COPD in stable phase were divided into dysfunction of lung (DL, n=20) group, dysfunction of lung and spleen (DLS, n=16) group and dysfunction of lung, spleen and kidney (DLSK, n=24) group according to syndrome differentiation of TCM. Moreover, the basic electric rhythm, percentage of bradygastria in electrogastrogram (EGG), ratio of actual body weight (ABW) to ideal body weight (IBW) and serum albumin level were determined to evaluate the nutrition status of the patients with COPD. Blood gas analysis was made too. RESULTS: The basic electric rhythm values in the DL, DLS and DLSK groups were (56.20+/-13.24)%, (47.38+/-10.24)% and (41.35+/-10.01)%, respectively. Compared with the DL group, the basic electric rhythm values in the DLS and DLSK groups decreased obviously (P<0.05). The percentages of bradygastria in the DL, DLS and DLSK groups were (45.18+/-18.13)%, (46.31+/-15.83)% and (49.90+/-17.54)%, respectively, and there were no differences among the three groups (P>0.05). The incidence rates of ABW/IBW<90% in the DL, DLS and DLSK groups were 50%, 75% and 54.17%, respectively, and there were no differences among the three groups (P>0.05). The incidence rates of serum albumin less than 35 g/L were 20%, 37.5% and 54.17%, respectively, and there were no differences among the three groups (P>0.05). PO2 in the DLS group [(63.56+/-15.06) mmHg] and DLSK group [(63.17+/-19.05) mmHg] were decreased as compared with the DL group [(78.15+/-16.63) mmHg] (P<0.05). PCO2 in the DL, DLS and DLSK groups were (42.25+/-12.46) mmHg, (48.60+/-17.60) mmHg and (49.97+/-13.43) mmHg respectively, and there were no differences among the three groups (P>0.05). CONCLUSION: Several dysfunction organs described in TCM were involved in COPD followed by the increased severity, hypoxemia and PCO2. Dysfunction of gastrointestinal tract and malnourishment took place accordingly.
5.Association between cytotoxic T lymphocyte-associated antigen 4 gene haplotype and ulcerative colitis in Chinese patients
Chinese Journal of Digestion 2001;0(04):-
Objective To investigate the association of gene polymorphism of cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) with ulcerative colitis (UC) in Chinese patients. Methods The A+49G transition polymorphism at position 49 (exon 1) and C-318T transition polymorphism at position -318 in promoter of the CTLA-4 gene were determined by polymerase chain reaction with sequence specific primers (PCR-SSP) method in 82 Chinese patients with UC and 204 healthy controls of Han nationality. Results No significant differences in the distribution of genotype and allele frequencies were observed between CTLA-4 C-318T and A+49G gene polymorphisms in UC patients and normal controls. How- ever , comparing with healthy subjects,the frequency of haplotype 2,3 (C -318 -G 49 /T -318 -A 49 ) in UC patients was significantly reduced (26% vs 41%, P
6.Cininal analysis of inflammatory bowl disease in 30 children.
Bing-Jin ZHANG ; Zhi-Qin MAO ; Mei SUN
Chinese Journal of Contemporary Pediatrics 2008;10(3):407-409
Adolescent
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Child
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Child, Preschool
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Colitis, Ulcerative
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diagnosis
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therapy
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Crohn Disease
;
diagnosis
;
therapy
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Female
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Humans
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Male
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Prognosis
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Retrospective Studies
9.Construction of subtracted cDNA libraries of gastrocarcinoma and normal tissue with suppression subtractive hybridization and their quality analysis
Lan-jun, WU ; Bing-zhi, MAO ; Sheng-qi, WANG
Bulletin of The Academy of Military Medical Sciences 2001;25(1):9-12,53
Objective: To construct subtracted cDNA libraries of stomach tumors and normal stomach tissue using suppression subtractive hybridization(SSH).Methods: cDNA Library subtraction was performed using the protocol described in the Clontech PCR-Select cDNA Subtraction Kit. cDNA was synthesized from 2 μg of poly A+RNA from the tumor and normal tissues using AMV reverse transcriptase. The tester and driver cDNAs were digested with RsaⅠ, a four-base-cutting restriction enzyme that yields blunt ends. The tester cDNA was then subdivided into two portions, and each was ligated with different cDNA adaptor. Two hybridizations were performed. In the first, an excess of driver was added to each sample of tester. Hybridization kinetics led to equalization and enrichment of differentially expressed sequences. During the second hybridization, the two primary hybridization samples were mixed together without denaturing and thus the templates were generated from differentially expressed sequences for PCR amplification. Using suppression PCR, only differentially expressed sequences were amplified exponentially and after second PCR amplification the background was reduced and differentially expressed sequences were further enriched. The cDNAs were then directly inserted into a T/A cloning vector to generate a stomach tumor-specific subtracted cDNA library. Results: The amplified library contained 800 positive clones. Plasmid inserts were PCR amplified and showed 250-700 bp inserts. Conclusions: The successfully constructed subtracted cDNA library of gastrocarcinoma and normal tissue enables us to compare two populations of mRNA and obtain clones of genes that expressed in one population but not in the other.The characterization of these genes will allow them to be exploited for their diagnostic and therapeutic potentials.
10.Clinical analysis of risk factors for sensorineural hearing loss in patients with nasopharyngeal carcinoma after intensity-modulated radiotherapy
Yunfei MAO ; Hongyan ZHANG ; Lei LIU ; Bing YAN ; Fang SHEN
Chinese Journal of Radiation Oncology 2013;22(6):465-468
Objective To investigate the risk factors for sensorineural hearing loss (SNHL) in patients with nasopharyngeal carcinoma (NPC) after intensity-modulated radiotherapy (IMRT).Methods From January 2012 to January 2013,29 patients with histopathologically confirmed NPC who received radiotherapy alone or concurrent chemoradiotherapy were included in this study.All patients underwent hearing tests,including pure tone audiometry and acoustic immittance measurement,before and after the IMRT.The cochlear doses for each ear were also collected for analysis.A prospective analysis was performed to investigate the relationship between cochlear dose and SNHL in patients with NPC,and the effects of other factors,including time after radiotherapy,chemotherapy,T stage,and age,were also analyzed.Results Of the 58 ears studied,6(10%) had low-frequency SNHL,and 17 (29%) had highfrequency SNHL.There were significant differences in mean cochlear doses between the patients who developed SNHL after radiotherapy and those who did not (left ears:46.1 Gy vs.35.5 Gy,P =0.006;right ears:45.0 Gy vs.35.8 Gy,P =0.009).When the mean cochlear dose was less than 44 Gy,only 15% (6/38) of ears had high-frequency SNHL.The invasion of skull base bone was also a significant risk factor for SNHL(P =0.047),but age,chemotherapy,and time after IMRT were not significant risk factors.Conclusions The mean cochlear dose and invasion of skull base bone are significant risk factors for SNHL in patients with NPC after radiotherapy.It is recommended that the mean cochlear dose should be limited to 44 Gy to minimize the incidence of SNHL after IMRT.