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1.
Article in Chinese | WPRIM | ID: wpr-300482

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the clinical characteristics and treatment strategies of severe complications induced by esophageal foreign bodies.</p><p><b>METHODS</b>The clinical data of 44 patients with severe complications of esophageal foreign bodies treated from July 2004 to July 2014 were retrospectively analyzed. The type of complications was recorded.</p><p><b>RESULTS</b>The ratio of severe complications in patients with esophageal foreign bodies was 9.05% (44/486). The most common type of foreign body was animal bone, with a total of 34 cases (77.3%); Onset of the disease were 2-40 days, mostly above 6 days, accounting for 61.4%. Severe complications of esophageal foreign bodies included 16 cases (36.3%) of simple esophageal perforation or combined with esophageal regional inflammation, 14 cases (31.8%) of cervical abscess, 7 cases (15.9%) of abscess around esophagus, 3 cases (6.8%) of mediastinal abscess, one case (2.3%) of cervical subcutaneous emphysema, one case of tracheoesophageal fistula, one case (2.3%) of aortic fracture, and one case (2.3%) of subclavian artery pseudoaneurysm. Among the 44 patients with severe complications, 40 patients (90.9%) were cured and 3 patients (6.8%) died. One case didn't receieve treatment.</p><p><b>CONCLUSIONS</b>Occurrence of the severe complications induced by esophageal foreign bodies is closely related to the type of foreign bodies and time before presentation. Early diagnosis and prompt treatments for esophageal foreign bodies are crucial for preventing of severe complications.</p>


Subject(s)
Abscess , Esophageal Perforation , Foreign Bodies , Pathology , Humans , Neck , Pathology , Retrospective Studies , Subcutaneous Emphysema , Tracheoesophageal Fistula
2.
Article in Chinese | WPRIM | ID: wpr-748717

ABSTRACT

OBJECTIVE@#To study surgical techniques and clinical applications of the intranasal endoscopic combined middle meatus and expand prelacrimal recess-maxillary ainus approach for orbital fracture treatment.@*METHOD@#A retrospective clinical analysis of 3 patients whose admitted for orbital floor fractures or medial wall fractures operated by the intranasal endoscopic middle meatus with expand prelacrimal recess-maxillary ainus approach surgical treatment was studied, and the treatment effects and the postoperative complications were analyzed.@*RESULT@#All patients had been followed up for 6 to 12 months. All cases of diplopia symptom were disappeared, enophthalmos were totally corrected, no cases of complication were found.@*CONCLUSION@#Endonasal endoscopic combined middle meatus and expand prelacrimal recess-maxillary ainus approach for orbital fracture treatment have great and clear view. This approach with less tissue damage and high therapeutic effect makes the cost lower than other methods and complications will be decreased as well, it has a great advantage in the orbital fracture treatment.


Subject(s)
Diplopia , Therapeutics , Endoscopy , Enophthalmos , Therapeutics , Humans , Maxillary Sinus , General Surgery , Nose , Ophthalmologic Surgical Procedures , Methods , Orbital Fractures , General Surgery , Postoperative Complications , Reconstructive Surgical Procedures , Methods , Retrospective Studies
3.
Article in Chinese | WPRIM | ID: wpr-248003

ABSTRACT

<p><b>OBJECTIVE</b>To explore a new method for horizontal segment of uncinate process classification from image of nasal sinus.</p><p><b>METHODS</b>On the level of horizontal segment of uncinate process of nasal sinus high resolution CT (HRCT) coronal scan. A vertical line and a parallel line were drawn started from the fornix top of the inferior meatus and orbital floor. The uncinate process which suited in the 'Cross' regional was divided into four types by these lines. These were: intra-superior, intra-inferior and extra-superior, extra-inferior. According to this method, 119 patients with chronic sinusitis which were divided into these four types by the imaging classification for horizontal segment of uncinate process operated by functional endoscopic sinus surgery, and the treatment effects and the postoperative complications were analyzed.</p><p><b>RESULTS</b>These 119 chronic sinusitis patients (238 sides uncinated process) were divided into four types by the imaging classification for uncinated process. The amount of intra-superior types was 66.0% (157/238), the amount of intra-inferior types was 16.8% (40/238), the amount of extra-superior types was 13.9% (33/238), and the amount of extra-inferior types was 3.4% (8/238). Functional endoscopic sinus surgery was performed according to this classification. All maxillary sinus natural ostium were found. Two cases occured orbital board damage (one was intra-superior, the other was extra-inferior).</p><p><b>CONCLUSION</b>The imaging classification for horizontal segment of uncinate process demonstrates a guiding significance for us to predict the difficulty of the operation and prevent the complications.</p>


Subject(s)
Adult , Chronic Disease , Endoscopy , Methods , Ethmoid Sinus , Female , Humans , Male , Maxillary Sinus , Orbit , Paranasal Sinuses , Postoperative Complications , Sinusitis , Tomography, X-Ray Computed
4.
Article in Chinese | WPRIM | ID: wpr-749401

ABSTRACT

OBJECTIVE@#To construct nasopharyngeal carcinoma CNE-2 cell lines expressing stable fusion suicide gene CD/UPRT. UL49.@*METHOD@#The plasmids of pcDNA3.1 (-)E6. BARF1p. CD/UPRT. UL49 was transfected into CNE-2 cells through lipofectamine, and the transfected CNE-2 cells were selected by G418 and prodrugs for getting the cells expressing fusion CD/UPRT. UL49 gene. The protein produced by the suicide gene was tested by Western-blotting in CNE-2 cells.@*RESULT@#Suicide genes were expressed stably in CNE-2 cells.@*CONCLUSION@#We constructed nasopharyngeal carcinoma cell lines CNE-2 expressing stable suicide gene through lipofectamine.


Subject(s)
Artificial Gene Fusion , Methods , Carcinoma , Cell Line, Tumor , Genes, Transgenic, Suicide , Humans , Nasopharyngeal Carcinoma , Nasopharyngeal Neoplasms , Genetics
5.
Article in Chinese | WPRIM | ID: wpr-749548

ABSTRACT

OBJECTIVE@#To study the early gene diagnosis of hereditary hemorrhagic telangiectasia (HHT) induced severe nosebleed.@*METHOD@#Clinical features of 23 family members in two HHT pedigrees were examined. Genomic DNA was extracted from peripheral blood samples. PCR amplification was conducted to screen ENG and ACVRL-1 genes with their specific primers. Direct sequencing was performed to detect the mutation. Mutation analysis was carried out to evaluate its significance.@*RESULT@#A heterozygous c. 263A > G mutation was identified in exon 3 of ACVRL-1 in 6 out of 11 members in NMG-1 pedigree. In GD-2 pedigree, 5 of 11 members carried c. 199C > G mutation. Mutation detection rate was 100% in subjects with nosebleed history and 25% in family members without epistaxis.@*CONCLUSION@#Gene diagnosis characterized by high sensitivity and specificity is of great practi-cal significance and early genetic screening should be a clinical routine test for HHT induced severe nosebleed.


Subject(s)
Activin Receptors, Type II , Genetics , Adolescent , Adult , Antigens, CD , Genetics , DNA Mutational Analysis , Endoglin , Epistaxis , Diagnosis , Genetics , Exons , Female , Genetic Testing , Humans , Male , Middle Aged , Pedigree , Receptors, Cell Surface , Genetics , Telangiectasia, Hereditary Hemorrhagic , Diagnosis , Genetics , Young Adult
6.
Article in Chinese | WPRIM | ID: wpr-748436

ABSTRACT

OBJECTIVE@#To investigate the allergens in patients with allergic rhinitis, to find common allergens of Changsha and to provide statistic basis for a reasonable prevention and treatment.@*METHOD@#The allergens in 1437 patients with allergic rhinitis in Changsha were detected by skin prick test.@*RESULT@#Eight hundred and ninety-eight (62.49%)of 1437 cases presented positive reaction. Among positive cases in inhalation group, the most common allergen was flour mite (98.33%), then were house dust mite (94.54%), mycetes II (19.27%) and weed (18.37%). Shrimp (35.41%) was the most common allergens in food group. And in childhood, adolescence and adulthood prick-positive cases, the ratio of more than 2 positive allergens were about 8.57%,18.04%, 19.15%.@*CONCLUSION@#The study shows that the flour mite and house dust mite are the most common allergens in Changsha.


Subject(s)
Adolescent , Adult , Aged , Allergens , Animals , Child , Child, Preschool , China , Epidemiology , Female , Humans , Male , Middle Aged , Mites , Prevalence , Pyroglyphidae , Rhinitis, Allergic, Perennial , Epidemiology , Skin Tests , Young Adult
7.
Article in Chinese | WPRIM | ID: wpr-293191

ABSTRACT

Traditional Chinese medicine (TCM) safety assessment is an important content of post-marketing Chinese herbal medicine assessment and the primary question. It includes safety monitoring and safety evaluation. China has established the elementary system for the TCM safety monitoring, but did few things on safety evaluation. People have knew that the methods of pharmacoepidemiology have good practicability on drug safety assessment in recent years. This article analyzed three methods of pharmacoepidemiology used in post-marketing Chinese herbal medicine safety assessment. There are three examples that may give some suggestions to fellow doctors working for safety monitoring and evaluation of TCM.


Subject(s)
Drug-Related Side Effects and Adverse Reactions , Humans , Medicine, Chinese Traditional , Pharmacoepidemiology , Methods , Product Surveillance, Postmarketing , Methods , Risk Assessment
8.
Article in Chinese | WPRIM | ID: wpr-747979

ABSTRACT

OBJECTIVE@#To investigate the causes of misdiagnosis for skull base lesions by PET-CT, and to recognize the working principal and the false-positive results of PET-CT for reducing the misdiagnosis rate.@*METHOD@#The lesions of case 1 involved the pharynx nasalis, pterygopalatine fossa, and orbital apex base of skull, and the lesions of case 2 involved the base of sella were performed with CT, MRI and PET-CT examination. Both of the cases were treated with surgery and histopathologic examination.@*RESULT@#Two cases were diagnosed as nasopharyngeal carcinoma and carcinoma of base of sella by PET-CT, respectively. However, they were finally diagnosed mycosis and pituitary tumor by histopathologic examination after operation.@*CONCLUSION@#PET-CT examination in the skull base lesions may give false-positive result. Both clinical information and other imaging examinations should be considered to reduce the misdiagnosis skull base lesions only by PET-CT.


Subject(s)
Diagnostic Errors , Female , Humans , Middle Aged , Positron-Emission Tomography , Skull Base , Diagnostic Imaging , Skull Base Neoplasms , Diagnostic Imaging
9.
Article in Chinese | WPRIM | ID: wpr-747924

ABSTRACT

OBJECTIVE@#To explore the regulative effect of expression of VEGF gene in nasopharyngeal carcinoma, and to discuss the future application of microRNA in the gene therapy for nasopharyngeal carcinoma.@*METHOD@#We constructed the recombination miRNA plasmid vectors which target VEGF gene and plasmids were transfected into CNE-2 cells by using Lipofectamine 2000 Reagent. The VEGF mRNA and VEGF protein were detected by reverse transcriptase polymerase chain reaction (RT-PCR) and Western blotting respectively. WST-8 assay was used to determine the inhibitory effect of microRNA on cell growth. Stable cell lines and wild type CNE-2 cell line were inoculated to subcutis of nude mice to establish animal models. The tumor growth and volume were observed.@*RESULT@#After the transfection of CNE-2 cells , the expressions of VEGF mRNA and VEGF protein were down-regulated at different degree. Whereas, CNE-2 cell growth showed no change by observation of fluorescence microscopy, and cell proliferation was not inhibited in WST-8 assay. However, in vivo, growth of xenograft was inhibited in preliminary experiments of nude mice.@*CONCLUSION@#By miRNA plasmid constructed artificially, miRNA can effectively interfere nasopharyngeal carcinoma cells by down-regulating the expressions of VEGF gene, therefore can inhibit the growth of tumor xenografted in vivo. Future application of microRNA in the gene therapy of nasopharyngeal carcinoma might be expected.


Subject(s)
Animals , Cell Line, Tumor , Female , Genetic Therapy , Humans , Mice , Mice, Inbred BALB C , Mice, Nude , MicroRNAs , Genetics , Nasopharyngeal Neoplasms , Genetics , Metabolism , Plasmids , Vascular Endothelial Growth Factors , Genetics , Metabolism
10.
Article in Chinese | WPRIM | ID: wpr-748257

ABSTRACT

OBJECTIVE@#To evaluate the imaging characteristics of B-cell non-Hodgkin lymphoma of skull base.@*METHOD@#Two patients with B-cell non-Hodgkin lymphoma of skull base in our hospital were reported, meanwhile the imaging characteristics were summarized and analyzed with the related literature.@*RESULT@#The imaging feature of B-cell non-Hodgkin lymphoma of skull base was equal or low signal on MR T2-weighted and not obviously enhanced. The width of the soft tissue invaded in intracalvarium appeared much bigger than the width of bone destruction, and the lesion infiltrated along the dural surface.@*CONCLUSION@#Characteristic imaging appearance of B-cell non-Hodgkin lymphoma of skull base have the significance in diagnosis and differential diagnosis.


Subject(s)
Adult , Child, Preschool , Humans , Lymphoma, B-Cell , Diagnostic Imaging , Pathology , Lymphoma, Non-Hodgkin , Diagnostic Imaging , Pathology , Magnetic Resonance Imaging , Male , Skull Base Neoplasms , Diagnostic Imaging , Pathology , Tomography, X-Ray Computed
11.
Article in Chinese | WPRIM | ID: wpr-748650

ABSTRACT

OBJECTIVE@#To investigate the expression and significance of Survivin mRNA in xenotransplanted nasopharyngeal carcinoma treated by paclitaxel combined with radiotherapy.@*METHOD@#Xenotransplanted nasopharyngeal carcinoma was established by CNE-2 cell line, then grouped and treated with paclitaxel, radiotherapy, paclitaxel combined with radiotherapy respectively. Xenotransplanted tumor volume was measured; tumor specimens were confirmed by routine hemotoxylin-eosin staining; apoptosis index was assayed by flow cytometry and Survivin mRNA was detected by one step RT-PCR.@*RESULT@#Xenotransplanted tumor growth was significantly inhibited by paclitaxel combined with radiotherapy and its inhibition rate was 99.3%. Compared to control group, apoptosis index was apparently increased in the other three groups (P0.05).@*CONCLUSION@#Paclitaxel combined with radiotherapy can induce significant killing effect in xenotransplanted nasopharyngeal carcinoma; paclitaxel can enhance the radiosensitivity of xenotransplanted nasopharyngeal carcinoma and its mechanism may rely on the down-regulation of Survivin expression.


Subject(s)
Animals , Brachytherapy , Cell Line, Tumor , Humans , Inhibitor of Apoptosis Proteins , Genetics , Metabolism , Mice , Mice, Nude , Nasopharyngeal Neoplasms , Metabolism , Therapeutics , Paclitaxel , Therapeutic Uses , RNA, Messenger , Genetics , Repressor Proteins , Genetics , Metabolism , Survivin , Xenograft Model Antitumor Assays
12.
Article in Chinese | WPRIM | ID: wpr-746589

ABSTRACT

OBJECTIVE@#To explore the methods and feasibility of the transnasal endoscopic reconstruction of the nasal-skull base defect to manage the cerebrospinal fluid leaks using intranasal autologous grafts.@*METHOD@#Ninety six nasal-skull base defect patients with cerebrospinal fluid leaks were managed under endoscope with intranasal autologous materials. The repair materials and methods for the management of the cerebrospinal fluid leaks were tailored based on the different location and size of nasal-skull base defect. Eighteen cases with nasal-skull base defects less than 0.5 cm in diameter were repaired by an overlay technique using free mucoperiosteal graft from the middle turbinate. Thirty five patients with defects in the ethmoid roof and ethmoid plate ranging in size from 0.5 to 1.0 cm in diameter were repaired by an overlay technique using a pedicled middle turbinate flaps. Twelve cases with defects in the sellar clivus ranging in size from 0.5 to 1.0 cm in diameter were repaired by an overlay technique using a pedicled septal mucoperiosteal grafts. Nineteen cases with a diameter of 1.0 to 1.5 cm defects were repaired using free septal cartilage and mucoperiosteal grafts. Seven cases with defects in the ethmoid roof and ethmoid plate ranging from 1.5 to 2.5 cm in diameter were repaired using a pedicled middle turbinate and ethmoid plate flaps. Five sellar clival defect cases ranging from 1.5 to 2.5 cm in diameter were repaired using ethmoid plate and pedicled septal mucoperiosteal flaps.@*RESULT@#Six months to 6 years' follow up indicated that two patient developed postoperative cerebrospinal fluid leaks one year and two years after operation, respectively. One was successfully managed by conservative treatment. The other was successfully repaired by second surgery. Three patients developed transient postoperative cerebrospinal fluid leak that was spontaneous recovered without special treatment. No other new postoperative cerebrospinal fluid leaks occurred.@*CONCLUSION@#We concluded that transnasal endoscopic reconstruction of the nasal-skull base defect is a highly effective method for managing the cerebrospinal fluid leak with the advantage of easily obtaining the intranasal autologous materials. The autologous materials should be varied based on different size and location of the skull base defects.


Subject(s)
Adolescent , Adult , Cerebrospinal Fluid Rhinorrhea , General Surgery , Child , Child, Preschool , Endoscopy , Ethmoid Bone , Transplantation , Female , Humans , Male , Microsurgery , Middle Aged , Skull Base , General Surgery , Turbinates , Transplantation , Young Adult
13.
Article in Chinese | WPRIM | ID: wpr-748372

ABSTRACT

OBJECTIVE@#To study the killing effect of suicide gene CDglyTK combined with GCV or 5-FC on the human laryngeal carcinoma Hep-2 cell line in vitro.@*METHOD@#Constructed plasmid pcDNA3.1 (-) CMV. CDglyTK was verified by enzyme digestion of Xho I /Hind III and automatic sequence analysis, then it was introduced into Hep-2 cells by electroporation to yield cells expressing CDglyTK stably after selecting with G418(400 ng/L) for 14 da. The expression of CDglyTK mRNA in transfected Hep-2 cells was tested by RT-PCR. Compared with Hep-2 cells transferred with pcDNA3.1(-), in vitro chemosensitivity of CDglyTK-expressing Hep-2 cells to 5-FC, GCV or 5-FC + GCV was detected by MTT assay.@*RESULT@#The recombinant plasmid contained full-length coding region sequence of CD and TK gene. A anticipated 707 bp fragment was amplified from total RNA of CDglyTK-expressing Hep-2 cells by RT-PCR and a fusion protein of 59 000 was detected in cell extract from transfected Hep-2 cells. In vitro study growth of CDglyTK-positive Hep-2 cells were inhibited by 5-FC, GCV or 5-FC + GCV respectively, and the antitumour effect of 5-FC + GCV is superior to 5-FC or GCV.@*CONCLUSION@#CDglyTK may be a candidate for treating human laryngeal cancer.


Subject(s)
Cell Line, Tumor , Cytosine Deaminase , Genetics , Genes, Transgenic, Suicide , Genetics , Genetic Therapy , Genetic Vectors , Humans , Laryngeal Neoplasms , Genetics , Plasmids , Recombinant Fusion Proteins , Genetics , Thymidine Kinase , Genetics
14.
Article in Chinese | WPRIM | ID: wpr-748900

ABSTRACT

OBJECTIVE@#To investigate the clinical characteristics, therapeutic efficacy and misdiagnosis status of sphenoid sinus malignant tumor in order to improve the diagnosis rate.@*METHOD@#Analysing and summarizing 18 patients with sphenoid sinus malignant tumor in our department from 1996 to 2005.@*RESULT@#The metastatic nasopharyngeal carcinoma is the most of sphenoid sinus malignant tumor,the second is chordocarcinoma and non-Hodgkin lymphoma, its clinical manifestation was headache (78%), sight alteration (50%), cranial nerve palsy (39%), nose bleed (11%); the clinical diagnosis rate was 56%.@*CONCLUSION@#The nasal endoscopy is the convention examination for these patients with sphenoid sinus malignant tumor whose imageology diagnosis is of limitation.


Subject(s)
Adult , Diagnostic Errors , Endoscopy , Female , Humans , Male , Middle Aged , Nasopharyngeal Neoplasms , Diagnosis , Pathology , Paranasal Sinus Neoplasms , Diagnosis , Retrospective Studies , Sphenoid Sinus , Pathology
15.
Article in Chinese | WPRIM | ID: wpr-748845

ABSTRACT

OBJECTIVE@#To investigate the relation between the expression of COX-2 protein and the effect of radiotherapy, estimate the value of COX-2 in predicting the effect of radiotherapy in patients with nasopharyngeal carcinoma,provide theoretical basement for establishing characteristic project of treatment and raising curative effect and life quantity.@*METHOD@#The expression of COX-2 protein was examined in 30 radiosensitive and 30 radioresistant poorly differentiated NPC by immunohistochemical staining (SP method) before radiotherapy. The relation between the expression of COX-2 and the effect of radiotherapy was analyzed.@*RESULT@#The positive rate of COX-2 protein expression was 61. 67% in NPC tissues, there was statistical difference( P <0. 01) of the positive rate between the 86. 67 % of 30 radioresistant and 36. 67 % of radiosensitive NPC tissues. The intensity of COX-2 protein expressions showed statistical difference( P <0. 05),too. Based on the expression of COX-2, the effect of radiotherapy, sensitivity, specificity, accuracy, positive predictive value, negative predictive value, false positive and false negative were predicted as follows: 86. 67Y, 63. 33% ,75. 00%, 70. 27% ,82. 61% ,36. 67% and 13. 33 , respectively.@*CONCLUSION@#COX-2 expression may serve as a marker in predicting the response to radiotherapy in NPC. According to the expression of COX-2, the sound treatment scheme can be selected.


Subject(s)
Adolescent , Adult , Aged , Cyclooxygenase 2 , Metabolism , Female , Humans , Male , Middle Aged , Nasopharyngeal Neoplasms , Metabolism , Pathology , Radiotherapy , Neoplasm Staging , Predictive Value of Tests , Prognosis , Sensitivity and Specificity , Young Adult
16.
China Oncology ; (12)2006.
Article in Chinese | WPRIM | ID: wpr-545391

ABSTRACT

Background and purpose:Concurrent chemo-radiotherapy(CCRT) was considered the best treatment plan for advanced nasopharyngeal carcinoma(NPC),but there was no uniform conclusion as to which category of patients and which chemotherapy associated radiotherapy would have the best therapeutic effect. As the standard treatment plan for advanced NPC, DDP concurrent chemo-radiotherapy was recommended by some scholars. DDP can raise the expression of inducible nitric oxide synthase(iNOS) protein and synthesize nitric oxide (NO) with anti-tumor effects, so we considered whether the therapeutic effect could be predicted and the corresponding treatment plan could be selectived to detect the iNOS expression in the pretherapy NPC tissues.The purpose of this study was to investigate the relation between the expression of iNOS protein and the nasopharyngeal tumor with complete response or with residue after DDP concurrent chemo-radiotherapy, so that the most appropriate plan of treatment can be adopted and the complete response rate of nasopharyngeal tumor can be raised. Methods:All patients were poorly differentiated NPC.The expression of iNOS protein was examined in 30 patients of nasopharyngeal tumor with complete response and 30 patients with residual tumor after DDP concurrent chemo-radiotherapy by immunohistochemical staining (SP method).None of the patients had received radiotherapy and chemotherapy.Results:Immunohistochemical examination revealed that iNOS expression in the NPC tissues was located in both the nucleus and cytoplasm of the tumorous tissues. The intensity of iNOS expression was stronger in the nucleus than in the cytoplasm of the tumorous tissues.The positive rates of iNOS protein expressions were 71.67%(43/60) in NPC tissues. It was 86.67% and 53.33% in 30 tumors with complete response and with residual tumor, respectively. The difference was statistically significant.The rate of iNOS strong postive expressions in the group of residual tumors was higher than that of the group with complete response. It was statistically different,but weak and moderate postive expressions did not have statistical difference.Conclusions:According to the difference of iNOS expression, it is a valuable method to select the most appropriate plan of treatment and the complete response rate of nasopharyngeal tumor can be raised.

17.
Article in Chinese | WPRIM | ID: wpr-248524

ABSTRACT

<p><b>OBJECTIVE</b>To identify the type of CTGAATCA from -nt.199 to -nt.192 of the cytokeratin 13(CK13) gene 5' flanking region and determine its transcriptional effect on CK13 gene expression.</p><p><b>METHODS</b>The CAT systems were used to assess the effects of different motifs of CK13 gene 5' flanking region on transcription. The clones of pCAT-enhancer with the total length, -nt.207 to +nt.63 and the same length of -nt.207 to +nt.63, but the T, G of -nt.198, -nt.197 being changed to A, T of the CK13 gene 5' flanking region, were constructed and transferred to HeLa cells with the help of lipofectin. Then work was done to detect the instant CAT expression of different clones and evaluate the effects of CTGAATCA of the 5' flanking region on CK13 gene expression. The type of the cis-element of CTGAATCA was identified with electrophoretic mobility shift assay (EMSA) and competition-EMSA.</p><p><b>RESULTS</b>CTGAATCA in the CK13 gene 5' flanking region is an AP1 cis-element by EMSA and competition-EMSA, it promotes CK13 gene expression.</p><p><b>CONCLUSION</b>CTGAATCA from -nt.199 to nt.192 of the CK13 gene 5' flanking region is an AP1 reaction element, not a cAMP reaction element. It promotes transcriptional activity of CK13 gene 5' flanking region.</p>


Subject(s)
5' Flanking Region , Genetics , Base Sequence , Binding Sites , Genetics , Binding, Competitive , Chloramphenicol O-Acetyltransferase , Genetics , Metabolism , DNA , Genetics , Metabolism , Electrophoretic Mobility Shift Assay , Gene Expression Regulation , HeLa Cells , Humans , Keratins , Genetics , Mutation , Recombinant Fusion Proteins , Genetics , Metabolism , Transcription Factor AP-1 , Metabolism , Transcription, Genetic , Genetics , Transfection
18.
Article in Chinese | WPRIM | ID: wpr-589991

ABSTRACT

Objective: To revise the Griffith Mental Development Scales and establish the norm being suited to the Chinese local conditions. Methods: The standardized sample consisted of 2022 children aged 0 to 7 years old was collected in a stratified and random way according to city rank, age, sex, paternal occupations. Each subject was tested individually and filled in a form. Results: The total sample had better representation. The mean of GQ was about 100, and the distribution of GQ is normal. Item analysis indicated that the item difficulty was about 0.5 and discrimination was from 0.62 to 0.78. A few orders of items were revised. The scorer reliability was 0.953. The test-retest reliability was 0.948. The correlation coefficients were 0.481 to 0.854 among the sub-scales or between sub-scales and General DQ. The result of exploratory factor analysis had three factors. The ratio of variance was 79.8%.Conclusion:Griffith Mental Development Scales have ideal reliability and validity.

19.
Article in Chinese | WPRIM | ID: wpr-521899

ABSTRACT

Objective To investigate the relationship between cleftpalate and secretory otitis media so that the secretory otitis media resulted from cleftpalate was treated and prevented effectively. Methods 116 children with cleftpalate and 73 normal children were investigated by tympanogram, hearing threshold and auditory brain response. Results The incidence of secretory otitis media and hearing loss had significant difference between the two groups. Conclusions Children with cleftpalate had high incidence of secretory otitis media and hearing loss. We should pay more attention to the treatment and prevention of secretory otitis media in children with cleftpalate. It is necessary for the cleftpalate children to insert the tympanal pressure equalization tubes while palatal surgery is performed.

20.
China Oncology ; (12)2001.
Article in Chinese | WPRIM | ID: wpr-544633

ABSTRACT

Background and purpose:Inducible nitric oxide synthase(iNOS) overexpression has been detected in various malignancies.Nitric oxide(NO) produced by iNOS play an important role in the carcinogenesis,growth,invasion,metastasis and angiogenesis of tumors.However,the clinical and biological significance of the expression of iNOS in NPC were rarely reported in the literature.This study was to investigate the expression of iNOS in NPC and its role in the carcinogenesis,development,invasion and metastasis of NPC.Methods:The expression of iNOS was examined in 40 poorly differentiated NPC and 10 normal nasopharyngeal epithelium tissues by immunohistochemical staining(SP method).The results of immunoassaying were observed by two pathologists independently,using double blank scoring method.iNOS expression was categorized on the base of extent and intensity of staining using a semi quantitative method.The immunoreactive score was obtained by multiplying the extent score with the intensity of score.An immunoreactive score of 2 or higher was considered positive expression.Results:① iNOS was expressed in both the nucleus and cytoplasm of the tumor tissues.The intensity of iNOS expression was stronger in the nucleus than in the cytoplasm of the tumor tissues.②iNOS expression were significantly higher in NPC than those of normal nasopharyngeal epithelium.The positive protein expression rates of iNOS were 67.5%(27/40).The positive expressions of iNOS were significantly correlated with clinical stage,invasion and metastasis. There were no significant difference in terms of age and gender.Conclusions:① Immunohistochemical examination revealed that iNOS expression in the NPC tissues was located in both the nucleus and cytoplasm of the tumorous tissues.The intensity of iNOS expression was stronger in the nucleus than in the cytoplasm of the tumorous tissues.②iNOS may play an important role in the carcinogenesis,development,invasion,metastasis of NPC,respectively.The radiotherapeutic response of NPC may be enhanced by using the selective inhibitors of iNOS.

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