Human cytomegalovirus(HCMV)infection is quite prevalent in population. HCMV triggers important disorders in pregnant women,immune-compromised individuals and organ-transplant patients. For dec-ades,more and more scholars believe that NK cells are important immune cells against HCMV. The activity of NK cells largely depends on the balance between the signals transducted by inhibitory receptors and activatory re-ceptors,therefore the study of NK receptors is of great importance. It may be helpful to the basic research and clinical treatment of HCMV infection. Here,this paper reviews the changes and the molecular mechanism of NK receptors in the control of HCMV infection.

An 70-year-old male come for swallowing pain 5 years, turning worse 10 months. Laryngoscopy showed a tumor with rough surface at the laryngeal surface of epiglottic. Outpatient pathology: poorly differentiated carcinoma of the larynx. CT: the root of epiglottic is slightly thickened. He accepted the partial laryngectomy, tracheotomy, bilateral functional neck dissection. Pathology: atypical carcinoid of larynx.
Aged ; Carcinoid Tumor ; pathology ; Epiglottis ; pathology ; Humans ; Laryngeal Neoplasms ; pathology ; Laryngectomy ; Laryngoscopy ; Larynx ; pathology ; Male ; Neck Dissection ; Tracheotomy

Objective:To establish an ion chromatography method for the determination of methane sulfonic acid in betahistine me-sylate and evaluate the uncertainty in the measurement. Methods: An ion chromatographic column IonPac AS11-HC ( 25 mm × 4. 0 mm,5 μm) was used with 12 mmol·L-1 NaOH as the eluent and an electrical conductivity detector with the suppressor of 30 mV. Results:The results showed that methane sulfonic acid could be detected without any interference. The calibration curve was linear within the range of 10-30 μg·ml-1(r=0.999 9)and the LOQ was 0.116 μg·ml-1. The average recovery was 100.8% (RSD=1. 2%, n=9). Based on the results of experiments, the influencing factors of uncertainty in the measurement were quantitatively eval-uated. The expanded uncertainty was obtained. Conclusion:The method is simple, accurate and selective. It can be used for the de-termination of methane sulfonic acid in betahistine mesylate. Based on the evaluation of uncertainty, the analysis can help reduce the uncertainty in the measurement and improve the accuracy and reliability of the determination.

Objective To investigate the impact of different anesthesia methods on intraoperative and postoperative patients un-dergoing laparoscopic rectal cancer surgery and to explore the ideal anesthetic method for laparoscopic rectal cancer surgery .Meth-ods 40 cases of laparoscopic resection for rectal cancer ,ASAⅠ-Ⅱ grade ,were selected and randomly divided into two groups .The group A (20 cases) was performed general anesthesia combined with epidural anesthesia and the B group (20 cases) was performed systemic anesthesia .The intraoperative hemodynamics ,respiratory function ,awaking time and awaking quality evaluation were ob-served .Results The airway pressure(Paw ) and PETCO2 in the two groups were increased .The intraoperative hemodynamics in the group A was more stable than those in the group B .The awaking time and awaking quality in the group A were superior to those in the B group .Conclusion Compared with simple general anesthesia ,general anesthesia combined with epidural anesthesia for laparo-scopic rectal cancer surgery has more stable vital signs and better awaking quality ,whoich is an ideal anesthetic method for laparo-scopic rectal cancer surgery .

Objective To identify new serum biomarkers of lung adenocarcinoma.Methods Serum samples from 31 patients with lung adenocarcinoma and 31 healthy individuals were applied to SAX-2 protein chips to generate proteomic spectra by surface-enhanced laser desorption/ionization time-of-flight mass spectrometry(SELDI-TOF-MS).The spectra were analyzed with Ciphergen Biosystems software and biomarker patterns software.Results The software identified 102 peaks and m/z 14 022.9 and 3 735.99 were used to construct the classification tree.The classification tree separated adenocarcinoma of lung effectively from healthy individuals,achieving a validity of 100%.The blind test challenged the model with a sensitivity of 100%and a specificity of 100%.Conclusions The results suggest that SELDI-TOF-MS technique can distinguish lung adenocarcinoma patients from healthy individuals and shows great potential for the development of a screening test for the detection of lung cancer.

Chondrosarcoma ; Humans ; Laryngeal Neoplasms ; Male ; Middle Aged

Objective To study the pathogenic etiology between nasopharyngeal aspirates (NPA) and bronchoalveolar lavage lfuid (BALF) in children with lower respiratory infection. Methods Multiple pathogen in NPA and BALF from 210 cases with lower respiratory tract infection was detected. Seven common respiratory virus (respiratory syncytial virus, adenovirus, in-lfuenza virus A, inlfuenza virus B, parainlfuenza 1, parainlfuenza 2, parainlfuenza 3) were detected by direct immunolfuorescence assay. MP, CP and HBoV were detected by lfuorescence quantitative PCR.HRV and hMPV were detected by RT-PCR. Aspirates were cultured for bacteria. The results of pathogen detection in secretions of upper and lower respiratory tract were analyzed. Results Total positive detection rate of NPA and BALF in 210 cases was 91.9%(193/210), which is higher than that in NPA 75.2%(158/210) and that in BALF 85.2%(179/210). Bacteria detection rate in NPA was 13.3%(28/210), and 8.6%(18/210) in BALF, without signiifcant difference (P=0.118). Bacteria detection rate in NPA and BALF was of poor consistency (Kappa=0.262). Virus detection rate in NPA was 24.3%, which is higher than that in BALF15.2%. BALF-MP detection rate was 77.6%(163/210), signiifcantly higher than that in NPA 53.3%(112/210). There are 95.5%(107/112) cases with positive results in NPA-MP detec-tioncan also be detected in the BALF-MP. MP copies in BALF were signiifcantly higher than that in NPA (4.28×106 vs. 1.31×105), and its positive rate in NPA was still higher than that in BALF. MP detection rate in NPA in children with clinical course of longer than two weeks was much lower than those with clinical course of two weeks or less. Conclusions The pathogen detection of virus and MP in NPA can be used as a reference for lower respiratory tract infection. The joint detection of NPA and BALF can improve the detection power. The sensitivity of virus detection in NPA is higher than that in BALF. NPA pathogen detection of virus and MP is of great important evidence-based medicine in the diagnosis of lower respiratory infection. MP detection rate and its copies in BALF are signiifcantly higher than that in NPA. BALF detection is the supplement of pathogen diagnosis in severe or refractory lower respiratory infections.

Objective To analyze the epidemiological characteristics of Mycoplasma pneumoniae (MP) infection in children with respiratory tract diseases ,and to provide scientific basis for clinical diagnosis and treatment and to formulate control measurements for the administrative department of public health .Methods Sputum specimens of 20 021 cases of hospitalized children with respiratory tract diseases from October 2005 to December 2014 in Suzhou were collected .MP DNA was detected by fluorescence quantitative polymerase chain reaction .At the same time ,venous blood was collected within 24 h after admission and 7-10 d of treatment .Specified MP antibodies IgG and IgM were tested by enzyme-linked immunosorbent assay to analyze the detection rate of MP . The positive rates between groups were compared using chi-square test or Fisher exact test .Measurement data were compared using Wilcoxon test .Results The MP infection rate was 36 .08% (7 224/20 021 cases) in 20 021 children .The MP infection rate of girls was 40 .81% (3 057/7 490) ,which was significantly higher than that of boys (33 .25% [4 167/12 531] ,χ2=116 .20 ,P<0 .01) .The MP infection rates of children at the age of less than six months ,6 months to 1 year old ,1-3 years old ,3-7 years old and older than 7 years old were 18 .35% ,29 .39% ,43 .93% ,54 .10% and 64 .48% ,respectively ,which increased with age (χ2 =1 949 .65 , P<0 .01) .The MP infection rates in spring ,summer ,autumn and winter were 31 .97% ,41 .57% , 40 .88% and 29 .90% , respectively . The MP infection rate of children in summer and autumn was significantly higher than that in spring and winter (χ2 =234 .61 , P<0 .01) .The MP infection rate was highest in the autumn of year 2008 (55 .07% ) and lowest in the spring of year 2010 (18 .48% ) for the decade .The MP infection rate showed fluctuations with different degrees in four seasons except in 2007 . In the past ten years ,the MP infection rate in Suzhou area was at a higher level in 2008 ,2009 ,2012 and 2013 ,which were 46 .03% ,46 .60% ,39 .28% and 47 .40% ,respectively .The MP infection rate was the lowest (25 .24% ) in 2011 in the decade ,and maintained around 30% in the rest years .Conclusions The MP infection rate in children with respiratory tract diseases is at a high level in Suzhou area .The MP infection rate of girls is higher than that of boys .MP infection could occur among all age groups ,and the MP infection rate increases with age .MP infection rate peaks in summer and autumn .MP infection has a small prevalence every two or three years ,which could sustain about two years .

Objective To measure the morphological parameters of cervical endplate of Chinese by using computed tomography (CT)scans,and to provide an accurate morphometric basis for designing and developing the cervical disc prostheses.Methods 80 healthy subjects were scanned by CT.The parameters of each cervical vertebra from C3 to C7 were measured by CT scans including upper anteroposterior length (APLu),upper center mediolateral length (CMLu),lower anteroposterior length (APLl) and lower center mediolateral length (CMLl).These parameters were compared between genders and among different vertebral levels.Results The values of APLu, CMLu,APLl and CMLl were increased with the decreasing of cervical segment (P APLu = 0.023,P CMLu = 0.007, P APLl =0.035,P CMLl < 0.001).There was statistically significant difference in morphological parameters between genders (P < 0.05).Compared with the reported data of other different populations,the statistically significant difference in morphological parameters also existed in the study.Conclusion The study provides an accurate morphological basis for designing the suitable artificial cervical disc for Chinese population.

Objective To explore the non-bacteria pathogens of acute laryngitis in children. Methods The clinical data and sputum sample were collected from 325 patients hospitalized due to acute laryngitis in consecutive 10 years from January 2006 to December 2015 . The multiple non-bacteria pathogens were detected and analyzed with clinical data. Seven types of respiratory viruses were detected by direct immunolfuorescence. Mycoplasma pneumoniae (MP), Chlamydia pneumoniae (CP), and Boca virus (HBoV) were detected by lfuorescence quantitative PCR. The rhinovirus (HRV) and human metapneumovirus (hMPV) were detected by RT-PCR. Venous blood was collected within 24 h after hospitalization and 7-10 d after treatment. The MP antibody of IgG and IgM were detected by ELISA. Results The detection rate of non-bacteria pathogens was 46 . 2%in 325 children with acute laryngitis ( 150/325 ), including 76 cases ( 23 . 4%) of virus and 99 cases ( 30 . 5%) of MP. Virus detection rate in 1-3 year old children was obviously higher than in 0-1 year old children and over 3 years old children (χ2?=?9 . 527 , P=?0 . 009 ). With the increase of age, the detection rate of MP increased gradually (χ2?=?10 . 132 , P=?0 . 006 ). The detection rates of RSV and hBoV were higher in under 3-year-old children. The detection rates of virus in winter and spring were signiifcantly higher than those in summer and autumn (χ2?=?5.064, P=?0.024). The detection rates of MP in winter, spring, summer, and autumn was 13.1%, 25 . 0%, 38 . 2%, and 44 . 9%respectively, and the MP detection rates were increased gradually over seasons (χ2?=?4 . 438 , P=?0 . 035 ). The detection rate of RSV was higher in winter, and hBoV was higher in summer. Conclusion Acute laryngitis mainly occurred in children under 3-years-old children, and the detected non-bacteria pathogens were different among different ages and seasons. Virus was the major pathogens in young children, while MP was more common in older children.