Objective To compare the distribution situation of human papillomavirus(HPV)genotypes in the tissue specimens of cervical intraepithelial neoplasia(CINⅠ,CINⅡ and CINⅢ)and its clinical significance.Methods The polymerase chain reaction (PCR)and gene-chips technology were utilized for detecting 23 kinds of HPV genotypes in the cervical tissue specimens from 53 ca-ses of CINⅠ,67 cases of CINⅡ and 188 cases of CINⅢ.And the related data of all subjects were analyzed.Results Among 53 ca-ses of CINⅠ,29 cases of HPV infection were detected with the total HPV infection rate of 54.72%9;among 67 cases of CINⅡ,52 cases of HPV infection were detected with the total HPV infection rate of 76.12%;among 188 cases of CINⅢ,175 cases of HPV infection were detected with the total HPV infection rate of 93.09%.Conclusion The significant difference of the total HPV infec-tion rate exists in the tissues of CINⅠ,CINⅡ and CINⅢ.PCR and the gene-chip technology can be applied in the detection of the cervical tissue specimens,23 kinds of genotypes can be detected by once detection,which has very important significance to the mo-lecular epidemiological survey of female cervical HPV infection,prevention and treatment of cervical cancer and the HPV vaccine re-search.

Objective To summarize the features of computed tomography (CT) and magnetic resonance imaging (MRi) of hepatic cystic echinococcosis, and investigate the key points of identification and diagnosis.Methods The clinical data of 58 patients with hepatic cystic echinococcosis who were admitted to the Affiliated Hospital of Inner Mongolia Medical University from August 2011 to August 2014 were retrospectively analyzed.Patients received plain and enhanced scan of CT and MRI.Hepatic cystic echinococcosis was divided into the 5 types according to the literatures, including unilocular echinococcasis in type Ⅰ, multivesicular hydatid cysts in type Ⅱ, anechoic content with detachment of laminated membrane from the cyst wall in type Ⅲ, calcification of lesions in type Ⅳ and mixed echinococcosis in type Ⅴ.Patients who were diagnosed as with definite or suspected hepatic cystic echinococcosis underwent surgery.The follow-up including observing the recurrence of hepatic cystic echinococcosis was performed by outpatient examination and telephone interview at postoperative month 3, 6, 12 for 1 year and then once every year up to August 2015, and was ended if there was no recurrence for more than 5 years.Results (1) The results of CT and MRI examinations: of the 58 patients, 54 received scan of CT and 21 received scan of MRI.Seventeen patients were detected in type Ⅰ with clear-boundary and low-density cystic lesions by CT examination;MRI examinations showed there were single or multiple, round or oval abnormal signal including low T1WI signal, high T2 WI signal and low T1 WI and T2WI signal of cyst wall.Thirteen patients were detected in type Ⅱ, CT examination showed the daughter cysts of multiple sizes were found in the mother cyst, arranged in honeycomb or wheel shape;MRI examination showed there were lower T1 WI signal in the daughter cyst and higher T2 WI signal in the daughter cyst compared with signal in the mother cyst, and low signal in the cyst wall of the daughter cyst and mother cyst.Six patients were detected in type Ⅲ with capsule in capsule sign and water snake sign by CT examination and ribbon sign by MRI examination.Thirteen patients were detected in type Ⅳ, CT examination showed there were irregular high-density calcified shadow with the performances for return sample or sample volume skins changes.Nine patients in type Ⅴ had more than 2 kinds of lesions.(2) Diagnosis: 4 patients were misdiagnosed by CT examination including 3 with preoperative diagnosis of hepatic cyst and 1 with preoperative diagnosis of metastatic carcinoma of liver, with an accurate rate of diagnosis of 92.6％ (50/54).Two patients with preoperative diagnosis of hepatic cystic adenocarcinoma were misdiagnosed by MRI examination, with an accurate rate of diagnosis of 90.5％ (19/21).(3) Treatment and follow-up: 58 patients underwent surgery, including 40 undergoing internal capsule removal with external capsule suturing (31 with open operation and 9 with laparoscopic operation), 10 undergoing partial hepatectomy and 8 undergoing external capsule enucleation.Of 58 patients, 3 were complicated with effusion of residual cavity, 2 with unclosed external capsule, 1 with bile leakage and then was cured after 4-8 week drainage.Fifty patients were followed up for 12.0-48.0 months with a median time of 27.1 months and a follow-up rate of 86.2％ (50/58).During the follow-up, 1 patient undergoing internal capsule removal had recurrence at postoperative month 8 and was cured by CT-guided interventional therapy using absolute alcohol, and other patients had no recurrence.Conclusions There was a higher accuracy in CT and MRI examinations for hepatic cystic echinococcosis.Honeycomb and wheel shapes are characteristic findings of hepatic cystic echinococcosis in type Ⅱ.The characteristic performances of CT examination for hepatic cystic echinococcosis in type Ⅲ are capsule in capsuleand water snake signs, and characteristic performances of MRI examination is ribbon sign.The ring-like enhancement of edge by MRI examination is an essential of identification and diagnosis between hepatic cystic echinococcosis and hepatic cyst, and irregular calcification is a differential point between hepatic echinococcosis and hepatic tumor.

To study the anticancer effects of tea polyphenols on colorectal cancer with microsatellite instability (MSI) in nude mice and to explore its mechanism.

Objective To compare the sensitivity of fluorescent quantitation polymerase chain reaction (fluorescent quantitation method) and gene‐chips typing method(gene‐chips method) in the detection of human papillomavirus(HPV) ,and to analyse differ‐ences and clinical significance .Methods A total of 246 women were selected as subjects ,among them ,111 cases of cervical exfolia‐ted cells and 135 cases of cervical tissues were collected and detected .15 kinds of high‐risk HPV genetypes were detected in all sub‐jects by using fluorescent quantitation method and gene‐chips method respectively ,and the detection results were compared . Results The sensitivity of the fluorescent quantitation method in detecting HPV was 55 .28% and that of the gene‐chips method was 55 .69% ,there was no statistically significant difference in sensitivity between the two methods (P>0 .05) .The two methods had relative high conformance(κ=0 .745) .The positive rate of HPV infection was increased with the progression of cervical dis‐ease .Conclusion The fluorescent quantitation method and the gene‐chips method have a relative high conformance ,and both with high sensitivity in detecting HPV .The severity degree of cervical cytological and histological changes may be positively correlated with HPV infection .

Objective To study the distribution status and clinical significance of human papillomavirus(HPV) infection geno‐types in condyloma acuminate(CA) tissues of vulva ,vagina and cervix .Methods The gene‐chips combined with polymerase chain reaction (PCR) technology were utilized for detecting 23 kinds of HPV genotypes in tissue specimens from 63 cases of vulval CA , 61 cases of vaginal CA and 65 cases of cervical CA .Their clinical pathological data were analyzed .Results In 63 cases of vulval CA ,56 cases were HPV positive with the HPV infection rate of 88 .89% (56/63) ,in 61 cases of vaginal CA ,55 cases were HPV positive with the HPV infection rate of 90 .16% (55/61) ,and in 65 cases of cervical CA ,62 cases were HPV positive with the HPV infection rate of 95 .39% (62/65) .Conclusion HPV infection is closely related to the CA pathgenesis in vulva ,vagina and cervix . HPV6 and HPV 11 are main stream genotypes ,in which vulval CA is most common .The gene‐chips combined with PCR technology is a method suitable for HPV typing diagnosis ,and has the characteristics of good sensitivity and high specificity ,which has an im‐portant significance for clinical diagnosis ,treatment and vaccine study of CA in femal vulva ,vagina and cervix .

Objective To compare the genotypes distribution of human papillomavirus (HPV ) infection in tissues of cervical cancers and cervical intraepithelial neoplasias (CIN ) and its clinical significance .Methods The polymerase chain reaction (PCR) and the gene-chips technique were utilized for the detection of 23 kinds of HPV genotypes in the tissue specimens from 192 cases of cervical intraepithelial neoplasia (CIN) and 85 cases of cervical cancers .And the related data of all subjects were analyzed .Results In 192 cases of CIN ,the total positive rate of HPV was 82 .29% (158/192) ,the positive rate of single genotype infection was 46 .88% (90/192) and the positive rate of multiple genotypes infection was 35 .42% (68/192);In 85 cases of cervical cancers ,the to-tal infection rate of HPV was 88 .24% (75/85) ,the positive rate of single genotype infection was 65 .88% (56/85) and the positive rate of multiple genotypes infection was 22 .35% (19/85) .Conclusion PCR combined with the gene-chips technique can be used in the detection of the tissue samples of cervical lesions ,once detection can detect 23 kinds of HPV genotypes with high sensitivity and strong specificity ,which has very important significance to the prevention and treatment of cervical cancer and precancerous lesions and the their vaccine research .

Objective To study the human papilloma virus(HPV) infection in lesion tissues of patients with common anus and rectal disease .Methods Gene amplification combined with gene chip technology were employed to conduct genotyping test in lesion tissue of 566 patients with common anus and rectal disease .Results In lesion tissues of 566 patients with common anus and rectal disease ,the overall HPV infection rate was 32 .86% (186/566) .In male patients ,the overall HPV infection rate ,monopole infection rate and multiple infection rate were 32 .14% (117/364) ,23 .35% (85/364) and 8 .79% (32/364) ,respectively ,which showed no sta-tistically significant difference with female [34 .16% (69/202) ,24 .75% (50/202) and 9 .41% (19/202) ,respectively ] (P>0 .05) . HPV 18 ,16 ,33 ,31 types were the main types of common anus and rectal disease .Conclusion HPV genotyping test of anus and rectum tissues is important for molecular epidemiological studies of HPV infection in anus and rectum .

Purpose To compare the distribution of 23 kinds of human papillomavirus ( HPV) genotypes in tissues of condyloma acu-minata ( CA) of cervix in 120 women and its clinical significance. Methods Polymerase chain reaction ( PCR) and gene-chips tech-nology were utilized for the detection of 23 kinds of HPV genotypes in tissue specimens from 120 cases of CA in cervix and related ma-terials of all subjects were conducted and analyzed. Results There were 115 positive cases in 120 women with CA in cervix and the rate of total HPV infection was 95. 83% (115/120). The rate of single type was 70. 83% (85/120) and multiple types was 25. 00%(30/120). The predominant type of single infection was HPV11 and the infective rate was 45. 00% (54/120), followed by HPV6 (22. 50%, 27/120). Otherwise, the predominant type of multiple infections was HPV6+11 with the infective rate of 20. 00% (6/30), and HPV11+16 infection accounted for 10. 00% (3/30). Conclusions HPV11, 6, 6+11 and 11+16 are the main genotypes in the pathogenesis of CA in cervix in 120 women. PCR and gene-chip technology can detect single and multiple HPV genotyping in tis-sues of CA in cervix with high sensitivity and specificity. Detection of HPV genotypes could be used to understand the prevalence situa-tion of HPV infection in tissues of CA and tumors of cervix and further to provide references for the research and development of HPV vaccine in women.

Objective To investigate the distribution situation of human papillomavirus (HPV) genotypes profile in cervical cells among women in Xuzhou area and its clinical significance .Methods 23 kinds of HPV DNA were extracted in cervical cell samples from 8 010 women in Xiuzhou area .The gene‐chips technique of PCR combined with reverse dot blot was adopted to detect the HPV genotypes .Results Among 8010 cervical cell samples ,there were 1 852 HPV infected cases ,the total HPV infection rate was 23 .12% ,the HPV infection rates of single type accounted for 17 .17% and its predominant types were 16 type (4 .35% ) ,followed by 58 type (2 .12% ) and 52 type (1 .82% ) ,The detection rate of multiple HPV infection was 5 .96% ,in which the predominant types were HPV16+58(4 .40% ) ,16+52(2 .94% ) ,11+16(2 .52% ) .Conclusion The single HPV infection of HPV16 ,58 ,52 and the multiple HPV infection of HPV16+58 ,16+52 ,11+16 are the main genotypes of cervical cells among women in Xuzhou area , this gene chip technique is suitable for the cervical cell sample ,its once detection can detect 23 kinds of HPV genotypes with high specificity and high sensitivity ,which has an important significance for the molecular epidemiologic survey study of HPV genotypes distribution among women in our country .

Objective To compare the genotype distribution of HPV in cervical cells of natural crowd and tissues of cervical in‐traepithelial neoplasia(CINⅢ grade) and cervical carcinomas patients .Methods PCR and gene‐chip technology were utilized for the genotype detection of 23 kinds of HPV in cell specimens from 1 047 women of natural crowd (normal group) and tissue specimens from 173 cases of cervical intraepithelial neoplasia(precancerosis group) and 133 cases of patients with cervical carcinoma (cervical carcinoma group) .Results There were 109 ,159 and 121 cases of HPV positive specimens respectively in normal group ,precancer‐osis group and cervical carcinoma group ,and the HPV infection rates were 10 .41% (109/1 047) ,91 .91% (159/173) and 90 .98%(121/133) ,respectively .Conclusion PCR and gene‐chip technology can be used to detect HPV genotypes in cervical cells and cer‐vical tissues specimens .