Expression and correlation of Fra-1 and HMGA1 in laryngeal squamous cell carcinoma / 中华耳鼻咽喉头颈外科杂志

Objective@#To investigate the expressions of Fra-1 and HMGA1 in laryngeal squamous cell carcinoma and their correlation.@*Methods@#Immunohistochemistry and reverse transcription-polymer chain reaction (RT-PCR) were used to detect the expressions of HMGA1 and Fra-1 in laryngeal squamous carcinoma tissues in 47 cases and para-carcinoma tissues in 21 cases(the First Hospital of Shijiazhuang). The relationship between the gene expressions in carcinoma tissues and clinopathological parameters such as pathological grade, clinical stage, lymph metastasis, age and anatomic site and the relevance of the two gene expressions were analyzed. SPSS 13.0 software was used to analyze the data.@*Results@#The positive expression rates of Fra-1 and HMGA1 proteins in laryngeal squamous cancer tissue were 48.9% and 53.2%, which were respectively higher than the rates of 19.0% for Fra-1 (χ2=5.416, P<0.05) and of 23.8% for HMGA1 (χ2=5.083, P<0.05) in adjacent tissues. The expression of Fra-1 gene was correlation with pathological grade, clinical stage and lymph metastasis (t values were -1.079, -1.066 and -1.067, all P<0.05), but not with age and anatomic site (t values were -1.068 and -1.054, both P>0.05). The expression of HMGA1 gene was correlation with pathological grade, clinical stage, lymph metastasis and age (t values were -1.112, -1.065, -1.009 and -1.066, all P<0.05), but not with anatomic site (t=-1.036, P>0.05). The expressions of Fra-1 and HMGA1 gene were positively correlation (r=0.672, P<0.05).@*Conclusions@#In laryngeal squamous cancer, Fra-1 and HMGA1 are excessive expression, with a positive correlation between the expressions of both genes.

The combination of ultrasound and CT evaluate lymph node metastasis of thyroid papillary carcinoma in different compartments / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To evaluate the role of the combination of ultrasound and enhanced CT in analyzing lymph node metastasis in thyroid papillary carcinoma (PTC) patients by compartment.@*METHOD@#Clinical data of 115 cases (141 sides) with PTC were collected. All had undergone ultrasound in neck and enhanced CT both in neck and in mediastinum before surgery. They were divided into ultrasound group. CT group, and the combination of ultrasound and enhanced CT group to evaluate lymph node metastasis.@*RESULT@#For the central compartment, the accuracy of ultrasound was 61.0%. CT was 48.9%, and the combination of ultrasound and CT was 62.4%. For the lateral compartment, ultrasound was 87.9%, CT was 78.7%, the combination of ultrasound and CT was 85.8%. Ultrasound had higher accuracy than CT in the central (P 0.05). There was no significant difference in accuracy between ultrasound and the combination of ultrasound and CT neither in central (P > 0.05) nor in lateral (P > 0.05) compartment. Six cases of lymph node metastasis in mediastinum and 1 case in parapharyngeal space detected by CT were pathologically proven. CT found that five patients with pulmonary metastasis.@*CONCLUSION@#The combination of ultrasound and CT or single ultrasound has higher accuracy in preoperative evaluation than single CT for lymph node metastasis in PTC. CT can assess some compartments such as mediastinum which can't be detected by ultrasound, and at the same time to evaluate lung metastasis. To evaluate lymph node metastasis in PTC, the combination of ultrasound and CT is more accurate and considerate than single method.

The expression and significance of Dickkopf-1 and GATA-6 in laryngeal carcinoma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To investigate the expression of Dickkopf-1 and GATA-6 in laryngeal carcinoma and to discuss their relevance and the roles in carcinogenesis and development of laryngeal carcinoma.@*METHOD@#Immunohistochemical technique was used to detect the expression of Dickkopf-1 and GATA-6 protein in 48 tissues of larynge al carcinoma, 48 para-carcinoma tissues and 20 normal laryngeal mucosal tissues.@*RESULT@#(1) The expression of Dick kopf-1 protein in laryngeal cancer is significantly lower than in para-carcinoma tissues and normal laryngeal mucosa tissues (P < 0.05). (2) The expression of GATA-6 protein in laryngeal cancer is significantly higher than in para-carcinoma tissues and normal laryngeal mucosa tissues (P < 0.05). (3) The expression of Dickkopf-1 and GATA-6 protein in laryngeal cancer is correlated with lymph node metastasis, clinical stage, histological grade (P < 0.05). (4) The expression of Dickkopf-1 and GATA-6 are negatively correlated in laryngeal cancer.@*CONCLUSION@#The expression of Dickkopf-1 and GATA-6 may contribute to the carcinogenesis and development of laryngeal carcinoma.

The role of medical imaging plus carbon nanoparticles to manage the cervical lymph nodes in patients with thyroid carcinoma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#The purpose of this study was to discuss the role of the combination of carbon nanoparticles and medical imaging to manage the cervical lymph nodes in patients with thyroid carcinoma.@*METHOD@#Eighty one patients with thyroid carcinoma that primary treated were divided into two groups: trial group and control group. Carbon nanoparticles were injected into the thyroid gland of trial group patients. Central compartment (level VI) dissection, levels IIl and IV dissection, lateral node (levels II-V) dissection were performed respectively in all the patients on the basis of medical imaging and pathology. Total lymph nodes, metastasis lymph nodes, black stained lymph nodes and black stained metastasis lymph nodes of trial group were counted respectively in different dissection specimens. Total lymph nodes and metastasis lymph nodes of control group were counted respectively in different dissection specimens. Parathyroid glands of thyroid or central compartment dissection specimens were counted in two groups.@*RESULT@#In trial group, rate of staining lymph node was 80.0% in central neck dissection tissue, 54.9% in levels III and IV dissection specimen, 39.1% in lateral node dissection specimen. In central compartment dissection tissue, lymph nodes on average in control group were less than in trial group (3.03 ± 2.07 vs. 4.72 ± 2.97) (P 0.05). There was no statistic difference between control group and trial group for the metastasis lymph nodes in difference dissection specimens. Parathyroid gland was found in 3 thyroid or central compartment dissection specimens among trial group, which was found in 9 specimens among control group, the difference had statistical significance (P < 0.05).@*CONCLUSION@#During levels III and IV dissection in cN0 patients or central compartment dissection, lymph nodes can be signed well by carbon nanoparticles, which can improve the lymph node detection rate, but can not increase the lymph node detection rate in cN+ patients. Parathyroid gland can be preserved by carbon nanoparticles during the thyroid gland resection and central neck dissection.

Missed diagnosis and treatment discussion of Kartagener syndrome / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To investigate the clinical feature and diagnostic criteria of Kartagener syndrome, and related treatment of sinusitis and nasal polyps.@*METHOD@#The clinical data of 5 patients which were diagnosed as complete Kartagener syndrome in The forth hospital of Hebei medical university were analyzed retrospectively. The first symptom of these patients was sinusitis. All of them accepted cardiac apical auscultation, X ray of orthophoria chest film and chest CT plain scan examination before diagnosis. All of them were treated intervention therapy in outpatient department,and 1 case accepted endoscopic sinus surgery in the hospital. The analysis of the data was to investigate the diagnosis in outpatient department and the perioperative therapy effect.@*RESULT@#All of the 5 patients' clinical feature were total mirror situs inversus viscerum, Dexcrocardia and brochiectasis associated with infection, "signet ring sign", "tram line sign", "honeycomb sign" at different degree on chest CT, bilateral maxillary and ethmoidal sinus inflammation on sinus CT. All the 5 patients appeared bilateral secretor otitis media associated with conductive deafness at different degree. 4 cases accepted anti-inflammation,mucus diluted and medicine treatment to improve cilia activity. 1 case accepted medicine and endoscopic sinus operation for obvious nasal symptoms. After following up for years,all symptoms of the 5 patients relieved, so did recurrent bronchiectasis infection. 1 case with operation had obviously relieved symptom and no postoperative complication.@*CONCLUSION@#Although complete Kartagener syndrome is infrequent disease, heart auscultation diagnosis and image examination are effective method to reduce missed diagnosis. Symptomatic treatment and suitable endoscopic sinus surgery method can reduce sinus symptom and the infection possibility of bronchiectasis effectively,which is beneficial for KS outcome.

Expression and methylation status of IGFBP-rP1 gene in laryngocarcinoma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To investigate the relationship between the promoter methylation and protein expression of insulin-like growth factor binding protein-related protein 1(IGFBP-rP1) in laryngeal squamous cell carcinoma (LSCC).@*METHOD@#Methylation specific PCR (MSP) approach and immunohistochemistry methods were used to examine the methylation status and protein expression of IGFBP-rP1 in 45 samples of laryngeal carcinoma and 18 samples of tissues beside cancer.@*RESULT@#For the promoter site, methylation frequency of IGFBP-rP1 in tumor specimens (33.3%, 15/45) was significantly higher than that in corresponding normal tissues (5.6%, 1/18) (P < 0.05). The protein expression of IGFBP-rP1 in tumor tissues was significantly higher than that in corresponding normal tissues (P < 0.05) and was inversely correlated with its methylation status of promoter.@*CONCLUSION@#Epigenetic silencing of IGFBP-rP1 gene expression by promoter hypermethylation may play an important role in LSCC.

Molecular Cloning of Two Novel Temporins From Lithobates catesbeianus and Studying of Their Antimicrobial Mechanisms / 生物化学与生物物理进展

Temporins are a kind of small,hydrophobic and C-terminus amidated antimicrobial peptides from Rana species.They are effective against bacteria,fungi,yeast,protozoa and viruses.Two novel temporins named as temporin-La(LLRHWKILEKYLanifc) and temporin-Lb(LFRHVVKIFEK.Ylamid.) were cloned from Lithobates catesbeianus.Synthetic peptides of temporin-La and temporin-Lb showed strong antimicrobial activities against bacteria tested,especially Gram-positive bacteria.Besides,temporin-La showed no haemolytic activity to rabbit erythrocytes at the concentration of 250 mg/L while temporin-Lb showed weak haemolytic activity(LC50≈ 230 μmol/L).Transmission electron microscopy showed that temporin-La and temporin-Lb induced different effects on bacterial structure of Staphylococcus aureus.

Discussion about cervical incision of goiter in mediastinum posterior and its indications / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To explore the feasibility of cervical approach for goiter in posterior mediastinum.@*METHOD@#According to the mechanism that goiter filed into posterior mediastinum and the dissection of thyroid gland and mediastinum, we designed the following surgery principles (1) From top to bottom. (2) Find out recurrent nerve at the place where it enters larynx, then dissect recurrent nerve as long as possible and protect it carefully, meanwhile, search thyroid vessels along recurrent nerve. (3) To avoid and uncontrollable serious hemorrhage in the operation, all normal and aberrant blood vessels must be ligated cautiously, and avoid pulling great vessels in the thoracic part. (4) Separating tumor of hemorrhage under surgical capsule. Bluntly, it can avoid damage important structure in most occasions. (5) If the tumor of hemorrhage was difficult to be separated from the surrounding structure, ask thoracic surgeon for cooperation.@*RESULT@#Two operations case were operated under the above guideline successfully, and the operations were performed with satisfactory effect, minimal invasion, rapid recovery and low medical cost.@*CONCLUSION@#Cervical approach for goiter in mediastinum posterior is an ideal method of surgery, but it has following operative indication. (1) imaging date indicate that tumor of posterior septum is not connected to the surrounding structure. (2) It is not accompanied with superior vena cava syndrome. (3) The size of large thyroid tumor of posterior septum could be decreased by taking out the center part of tumor, and it is suitable for liquidized center tissue especially, then take out the tumor from neck. If it is hard to be taken out, you can ask thoracic surgeon for help.

Expression of DcR3 protein and its significance in laryngeal carcinoma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To investigate the expression of DcR3 in laryngeal carcinoma and analyze the relation between DcR3 and clinical factors.@*METHOD@#The expression of DcR3 protein in 41 laryngeal carcinoma tissues and 41 para-carcinoma tissues (to cutting margin > 0.5 cm) were measured by Flow Cytometer(Epics-XL II), 15 normal laryngeal mucosa tissues were served as controls.@*RESULT@#(1) The quantitative and qualitative expression of DcR3 protein in laryngeal carcinoma tissues was obviously higher than those in para-carcinoma and normal laryngeal mucosa tissues, respectively (P < 0.05). There was no significant difference for the DcR3 protein expression between para-carcinoma and normal laryngeal mucosa tissues. (2) In laryngeal carcinoma, the expression of DcR3 protein was not significantly related to clinical classification, tumor size, smoking history, patients' age and sex but related to metastasis, pathological grade and clinical stage.@*CONCLUSION@#The high level of DcR3 expression may contribute to the carcinogenesis and development of laryngeal carcinoma. So it can be an important index for judging the differentiation, infiltration, metastasis and staging of laryngeal carcinoma.