1.Clinical characteristics of clustering infection of human adenovirus-B type 7 in a military camp
Lin WANG ; Haiyu LU ; Qihui LIU ; Xuezhi WANG ; Hongjian JI ; Fan XIA ; Liuda NI
Chinese Journal of Infectious Diseases 2015;33(2):79-82
Objective To investigate the clinical characteristics of a clustering infection caused by human adenovirus-B type 7 (HAdV-B7) which occurred in one military camp located at the southeastern coastal region in January 2014.Methods All clinical characteristics of the 70 patients were collected for analysis,including clinical symptoms and signs,chest computer tomography (CT) scans and laboratory results.Throat swabs were collected and real time polymerase chain reaction (RT-PCR) was performed to detect viral nucleotide.Results The prominent symptoms of these patients with HAdV-B7 infection included fever (100.0%,70/70),cough (82.9%,58/70),productive cough (72.9%,51/70) and sore throat (61.4%,43/70).All patients showed posterior pharyngeal wall linear congestion with ovoid follicle.Fifty-four (77.1 %) patients had enlarged tonsils and 46 (65.7 %) patients had tonsils covered by white secretions.Fifty-eight (82.9 %) patients had pharyngeal follicular hyperplasia.Fifty-one (72.9 %) patients had abnormalities on chest radiograph,including lung-marking fuzzy,pulmonary interstitial inflammation and parenchymal serous exudation.Of the 54 throat swabs from patients,34(63.0%) were identified as HAdV-B7.All patients were cured.Conclusions The clinical features of patients with HAdV-B7 infection are different from other viral infection.HAdV-B7 is easy to cause clustering infection in particular populations.Early detection and early intervention are needed to avoid exacerbation and transmission.
2.Correlation between the Expression of RARα, PPARβ/δand the Effect of Retinoic Acid in Craniopharyngioma Cells
Lin LUO ; Gang BAI ; Xingqiao WANG ; Wei NI ; Pin ZUO ; Hongping YUAN ; Huatao NIU ; Yaodong FAN
Journal of Kunming Medical University 2013;(10):42-46
Objective To investigate the molecular mechanism of retinoic acid in targeted treatment of craniopharyngioma by detecting the expression of RARαand PPARβ/δin craniopharyngioma cells and analyzing the correlation between the expression and effect of retinoic acid. Methods The expression of RARα and PPARβ/δ in craniopharyngioma cells from 31 patients cultured in vitro was quantified by reverse transcription-PCR. The inhibition rates of RA on craniopharyngioma with different expression of RARα and PPARβ/δ were detected by using MTT assay, and the correlation between the expression of RARα and PPARβ/δand the effect of RA was analyzed. Results 1. The RT-PCR results showed that the expression levels of PPARβ/δand RARα mRNA were different. Craniopharyngioma cells from 31 patients in primary culture were divided into three groups according the expression levels of nuclear receptor: PPARβ/δ>RARα group, RARα>PPARβ/δ group and RARα>>PPARβ/δ group. 2.MTT results showed that the inhibition rate of RARα>>PPARβ/δgroup was significantly higher than the other groups under same drug, the differences had statistical significance ( <0.01) . Conclusions The expression of PPARβ/δ, RARα can be used to evaluate the effect of RA in treatment of craniopharyngioma. The craniopharyngioma with low-expression of PPARβ/δ is more sensitive to RA. Targeting higher RARα or targeting lower PPARβ/δ is beneficial to the treatment of craniopharyngiomas.
3.Applicability of Zebra Fish Thrombosis Model in Antithrombotic Activity Screening of Chinese Materia Medica
Jiaojiao FAN ; Yihan QIAO ; Chongjun ZHAO ; Yuanyuan NI ; Ran YANG ; Yaru FENG ; Zhiqiang MA ; Ruichao LIN
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(7):58-61
Objective To investigate the applicability of zebra fish thrombosis model in antithrombotic activity screening of Chinese materia medica.Methods The living zebra fish thrombosis model was induced by adrenaline hydrochloride. Zebra fish were randomly divided into blank control group, model group, positive medicine group and medication group. Each group was given the corresponding medicine or embryo culture water. O-anisidine staining solution was used to stain and calculate the staining intensity of erythrocytes in zebra fish heart, and quantitative analysis was carried out. The platelet aggregation of transgenic zebra fish was observed and under qualitative analysis. Results Compared with the model group, 100μg/mL salvianolic acid B, 300, 900μg/mL aqueous extract of Salvia miltiorrhiza, 45μg/mL 95% ethanol extract and 400, 1200μg/mL hypothalamus could significantly inhibited the formation of zebra fish thrombosis (P<0.01).ConclusionZebra fish thrombosis model has good applicability in antithrombotic activity screening of Chinese materia medica.
4.Identification and Phyletic Evolution Analysis of Actinomyces hyovaginalis from Swine
Yu-Long ZHOU ; Hua-Xing DONG ; Xi-Lin HOU ; Hong SHAO ; Cheng XIA ; Hong-Bo NI ; Fan-Ze PIAO ;
Microbiology 1992;0(05):-
A strain was isolated from internal organ of died porcine about 8 weeks with purulent pneumonia,arthritis,pyogenic arthritis and endocarditis in April 2007.Objectives of the study are to confirm the genus of the strain,pathopoiesis,and drug sensitivity.The mainly study methods:the first,the strain was identified by the phenotype and the characteristics of the biochemistry,sequence 16S rDNA genes of the strain was analyzed by molecular biology technology,finally animal experiment and drug sensitivity testing were done.The results of the phenotype and the characteristics of the biochemistry showed that it is greatly similar to Actinomyces hyovaginalis,16S rRNA sequence analysis exhibited the homology achieved to 99.2% com-pared with group III strains of Actinomyces hyovaginalis,and the phyletic evolution analysis also indicated that it has mostly relationship with group III strains of Actinomyces hyovaginalis.Animal experiment dis-covered it has highly pathogenicity to Mus musculus albus;Drug sensitivity testing showed that it is hyper-sensitive to Erycin,Gentamicin and Amikacin.So,the result of the study confirmed that the strain is Actin-omyces hyovaginalis III with the pathogenicity.
5.Diagnostic value of cross-primer isothermal amplification technology in tuberculosis and its related influencing factors
YU Huang ; LIU Chong ; OUYANG Fan-xian ; CHEN Zhuo-lin ; CHEN Lin ; CHEN Xiao-juan ; XU Yu-ni ; CHEN Shao-wen
China Tropical Medicine 2023;23(3):240-
Abstract: Objective To analyze the value and influencing factors of cross-primer isothermal amplification technology(CPA) in clinical screening and diagnosis of tuberculosis (TB). Methods We collected 543 inpatients in the Second Affiliated Hospital of Hainan Medical College from January 1, 2018 to December 31, 2021, including 179 patients with tuberculosis, 187 patients with pneumonia and 177 patients with other diseases. The patients' sputum, alveolar lavage fluid, pleural effusion and midstream urine were detected by CPA, smear microscopy, culture method and gene detection. The value of CPA detection in the diagnosis of tuberculosis and its influencing factors were evaluated. Statistical analysis was performed using SPSS 26.0. Results The total positive rate of CPA was 14.4% (78/543), and the positive rate of sputum samples accounted for 29.1% (39/134). Among the 78 cases of CPA positive patients, the tuberculosis group accounted for 69.2% (54/78), followed by pneumonia group 21.8% (17/78), and other diseases group accounted for 9.0% (7/78). Taking CPA test as the reference method, the "sensitivity" of smear microscopy was lower than that of genetic testing and culture, while the "specificity" was higher than that of culture and gene testing, and the "missed diagnosis rate" of smear microscopy was higher than that of genetic testing and culture. CPA test positive was related to gender, ESR and pneumonia. There is a good agreement between CPA test and culture method and gene test (Kappa>0.9), and a moderate agreement between CPA test and smear microscopy (Kappa=0.616). Conclusions Sputum specimen is the best choice for CPA detection, while the value of pleural effusion detection is relatively limited. Sputum, alveolar lavage fluid and midcourse urine can be used as clinical specimens for screening and diagnosis of "tuberculosis group and other disease group", while sputum can be used for screening and diagnosis of "tuberculosis group and pneumonia group". Gender, ESR and pneumonia are the influencing factors of CPA positive patients. Therefore, CPA testing is worthy of clinical promotion, but more clinical research data are needed.
6.Hepatitis C virus F protein-mediated inhibition of hepatoma cell proliferation.
Fan ZHOU ; Jiao LIU ; Qing-mei CHEN ; Xiao-ling SHAN ; Lin-lin CHEN ; Hui-qin QUAN ; Ni TANG
Chinese Journal of Hepatology 2012;20(5):368-371
OBJECTIVETo investigate the biological function of the hepatitis C virus (HCV)-encoded F protein in hepatocytes.
METHODSThe full-length F gene was amplified by PCR from HCV genotype 1a and cloned into plasmid pSEB-3Flag by restriction enzyme digestion and ligation. Hepatoma cell lines, Huh7 and SMMC7721, were transfected with the resultant recombinant pSEB-3Flag-F or the original pSEB-3Flag (negative control) and screened with the selective antibiotic, blasticidin. Stable F gene and protein expression was verified by RT-PCR analysis. Analysis of cell growth and cell cycle was carried out by MTS assay, crystal violet staining and flow cytometry.
RESULTSHuh7 and SMMC7721 cells transfected with pSEB-3Flag-F plasmid (Huh7-F and SMMC7721-F, respectively) uniquely expressed the F gene and protein. The Huh7-F and SMMC7721-F cells showed significantly decreased proliferation rates, compared to the respective control groups. A similar HCV F-mediated growth-inhibiting activity was observed by the cell viability assay. Furthermore, cell cycle analysis revealed that the S-phase distribution was much lower in Huh7-F (47.12%) and SMMC7721-F (30.75%) cells than in the respective controls (55.35% and 33.23%, respectively) (P less than 0.05).
CONCLUSIONStable expression of the HCV F gene reduced the in vitro proliferation rate of hepatoma cell lines, indicating that the F protein may function as a growth inhibitor of infected cells.
Carcinoma, Hepatocellular ; metabolism ; pathology ; Cell Line, Tumor ; Cell Proliferation ; Hepacivirus ; genetics ; Humans ; Liver Neoplasms ; metabolism ; pathology ; Reverse Transcriptase Polymerase Chain Reaction ; Viral Core Proteins ; genetics ; metabolism
7.A novel GJA8 mutation in a Chinese family with autosomal dominant congenital cataract.
Ying LIN ; Ni-ni LIU ; Chun-tao LEI ; Ying-chuan FAN ; Xiao-qi LIU ; Yang YANG ; Jun-fang WANG ; Bing LIU ; Zheng-lin YANG
Chinese Journal of Medical Genetics 2008;25(1):59-62
OBJECTIVETo identify the mutations in the gap junction protein alpha3/alpha8 gene (GJA3 or GJA8) in the Chinese family with autosomal dominant congenital cataract (ADCC).
METHODSAll subjects(5 family members and 100 unrelated control individuals)were undergone comprehensive ophthalmic examination, and genomic DNA was extracted from peripheral blood (5 mL). The exons and flanking introns of GJA3/GJA8 genes were amplified by polymerase chain reaction (PCR). Purified PCR products were then sequenced directly for screening disease-causing mutations.
RESULTSUpon bidirectional sequence analysis, a G-->A transition at nucleotide 138 (c.138G>A)in exon 2 of GJA8 was found, resulting in synonymous mutation of glycine (GGG) to glycine (GGA). An additional G-->T transvertion at nucleotide 139 (c.139G>T) in exon 2 of GJA8, resulting in a missense mutation of asparagines (GAU) to tyrosine (UAU) at codon 47 (D47Y). These two alterations were not seen in all unaffected members and 100 unrelated control individuals. Bioinformatic analyses also showed that a highly conserved region was located at Asp47. Meanwhile no sequence variations for GJA3 were detected from the 3 affected members.
CONCLUSIONA novel disease-causing mutation (D47Y) of GJA8 gene in a Chinese family with ADCC is reported.
Amino Acid Sequence ; Asian Continental Ancestry Group ; genetics ; Base Sequence ; Case-Control Studies ; Cataract ; congenital ; genetics ; Child, Preschool ; Connexins ; chemistry ; genetics ; Conserved Sequence ; Exons ; genetics ; Eye Proteins ; chemistry ; genetics ; Family ; Female ; Genes, Dominant ; genetics ; Humans ; Male ; Molecular Sequence Data ; Mutation ; Pedigree
8.Integrated medicine concepts in pathological PBL teaching reform
ni Lin FAN ; yong Zhi YIN ; Tao YIN ; Zhe WANG
Basic & Clinical Medicine 2017;37(10):1482-1485
Problem-based leaning(PBL) teaching method has been widely carried out in pathology teaching,but it still have limitations in the implementation, and integrated medicine concepts could improve the effect of PBL teaching to a great extent.In this paper,by analyzing the necessity of integrated medicine concepts in the pathologi-cal PBL teaching,some principles are put forward to optimizing PBL teaching,including the principle of integration and the networking, unpack and topology, and optimizing the"typical case selection and the shortage of PBL mechanism". Finally,the paper indicates that deep understanding of complementary relationship between integrated medicine and PBL could help to establish medical scenario,which is easier to understand,operate and grasp,thus to promote the pathological teaching reform.
9.Pain degree of three different incisions and relationship between incisions local infiltration and nausea-vomiting in patients receiving LC
Liu YU-RUI ; Tang NI ; Fan XIN ; Liu YU-LIN
China Journal of Endoscopy 2017;23(11):35-40
Objective To discuss the pain degree of the three different incisions (subxiphoid, navel, right abdomen) and the relationship between incisions local infiltration and nausea-vomiting after Laparoscopic Cholecystectomy (LC). Methods 100 patients (ASA I) scheduled for elective surgery were randomly divided into 5 groups (n = 20): Subxiphoid Group (Group A), Navel Group (Group B), Right Abdomen Group (Group C), All Incisions Group (Group D) and Control Group (Group E). Before the incisions were sutured, patients in Group A, Group B and Group C received incisions local infiltration of Ropivacaine (0.5%, 3 ml) in subxiphoid, navel and right abdomen. Patients in Group D received incisions local infiltration of Ropivacaine (0.5%, 3 ml) in all the three incisions. Patients in Group E received saline with the same volume (3 ml) in all the three incisions. The Visual Analogue Scale (VAS) pain scores were recorded when the patients left the operating room, 2 hours, 4 hours, 8 hours, 16 hours and 24 hours after the operation. The circumstances of nausea-vomiting were also recorded. Results Demographic parameters were similar among groups. The VAS pain scores declined with time gone by. The VAS pain scores:Group A< Group D < Group C < Group B < Group E (F = 7.16, P = 0.000). Comparison between groups: The VAS pain scores in Group A and Group D were significantly less than these in Group C and Group B. The VAS pain scores in Group C and Group B were significantly less than these in Group E. There is a difference among all the groups about the percentages of nausea-vomiting. The percentages of Group B were significantly less than these in the other 4 Groups (χ2 = 10.39, P = 0.034). Conclusions The pain of the subxiphoid incision was the most severe pain in the patients receiving LC. Compared with the other two incisions local infiltration, subxiphoid incision local infiltration proved to be the most effective treatment in reducing the VAS pain scores in patient receiving LC. Navel incision local infiltration proved to be the most effective treatment in reducing the percentages of nausea-vomiting after LC.
10.Integrated medicine concepts in pathological PBL teaching reform
ni Lin FAN ; yong Zhi YIN ; Tao YIN ; Zhe WANG
Basic & Clinical Medicine 2017;37(10):1482-1485
Problem-based leaning(PBL) teaching method has been widely carried out in pathology teaching,but it still have limitations in the implementation, and integrated medicine concepts could improve the effect of PBL teaching to a great extent.In this paper,by analyzing the necessity of integrated medicine concepts in the pathologi-cal PBL teaching,some principles are put forward to optimizing PBL teaching,including the principle of integration and the networking, unpack and topology, and optimizing the"typical case selection and the shortage of PBL mechanism". Finally,the paper indicates that deep understanding of complementary relationship between integrated medicine and PBL could help to establish medical scenario,which is easier to understand,operate and grasp,thus to promote the pathological teaching reform.