AIM: To assess the changes of macular thickness of acquire immunodeficiency syndrome ( AIDS) patients.
METHODS:The study based on the data analysis of 38 human immunodeficiency virus ( HIV ) positive patients ( 64 eyes ) . According to CD4 count and whether cytomegalovirus retinitis ( CMVR) happened, the patients were divided into 3 groups. Group A included 16 patients (32 eyes), in which CD4 count was < 50cells/μL and CMVR did not happen. Group B included 10 patients ( 20 eyes), in which CD4 count was>50cells/μL and CMVR did not happen. Group C included 12 patients (12 eyes), in which CD4 count was < 50cells/μL and CMVR just happened. Group D included 10 healthy people ( 20 eyes ) , as normal control group. By using optical coherence tomography ( OCT ) , thickness of retina along with a 1mm diameter circle centered on macular was evaluated.
RESULTS:The mean foveal thicknesses in groups A, B, C and D were 254. 03±15. 63μm, 263. 11±17. 12μm, 304. 50±50. 62μm and 257. 64±8. 54μm in order. Compared with foveal thickness in each group, there were significant differences in general (F=12. 933, P=0. 000). The mean foveal thickness in groups CMVR increased, which was of significant difference (P= 0. 000), compared with other groups.
CONCLUSION: CMVR can impair the structure and function of macular, which then seriously affects the visual function of patients. It's helpful to understand the progress and prognosis of CMVR disease by observing macular structure with OCT in early time.

BACKGROUND:The majority of people do not believe that the femoral component flexion in total knee arthroplasty affect or affect little postoperative function and it is the only that the radiographic films is not satisfactory.So it has not caused people's enollgh attention.But the femoral component flexion affects the results of total knee arthroplasty obviously.OnJECTIVE:To investigate the curative effects of femoral component installed in the position of flexion during the operative procedure of total knee arthroplasty(123 knees)on the follow up results in 78 patients.DESIGN:Grouping contrast observation.SETTlNG:First Department of Bone and Joint,Wangjing Hospital of China Academy of Traditional Cllinese Medicine.PARTlCIPANTS:123 knees(78 patients)were given total knee arthroplasty in the First Department of Bone and Joint,Wangjing Hospital of China Academy of Traditional Chinese Medicine from October 2001 to June 2004.Seventeen(13.8%,15 patients)knees were found with femoral component flexion(FCF),in which there were 5 male cases and 10 female cases,aged from 47 to 81 years old.106(63 patients)knees were found without FCF,in which there were 22 male cases and 41 female cases,aged from 47 to 79 years old.METHODS:Total knee arthroplasties about their HSS rating scores,ranges of motion and flexion contractures werecompared in the two groups before operation and after operation,and the degrees of the FCF angle and the distances of femoral component flexion were measured.MAIN OUTCOME MEASURES:①Femoral Drostllesis flexion measurement;②HSS scores and activity:③femoral prosthesis flexion angle and distance buckling;④adverse events and side effects.RESULTS:Follow up lasted for one year above.①The degrees of flexion of femoral components were from 7°to 19°(average 11.3°)and the distance of flexion was from 2 mm to 4 mm(average 2.6 mln)in those 17 knees of total knee arthroplasty.②Differences in HSS rating scores and range of motion were not statistically significant(P＞0.05)before operations between the group of femoral component flexion and the group of femoral component plane.However,after operations the above aspects in the group of femoral component flexion were less than that in the group of femoral component plane significantly(P=0.01,P＜0.01),and were statistically significant(P=0.02,P＜0.01)between post-operations and pre-operations in HSS rating scores and range of motion respectively in the two groups.③The statistic differences in cases and angles of flexion contractures of postperations between the group of femoral component flexion and the group of femoral component plane were significant(P＜0.01),the situation in the group of femornl component flexion were more bad than that in the group of femoral component plane,but were all improved significantly in cases and angles of flexion contractures after operations in the two groups(P＜0.05,P＜0.01).④There was one case with the right deep venous thrombosis and one case with myositis ossifican in non-FCF group,and there was one case in FCF group with impingement sign between patellar and component.CONCLUSION:The findings show that femoral component flexion will increase the incidence of knee flexion contracture and result in knee extension dysfunction after total knee arthroplasty surgery.

Animals ; Chromatography, Thin Layer ; Dichlorvos ; blood ; Dimethoate ; blood ; Insecticides ; blood ; Methyl Parathion ; blood ; Mice ; Organothiophosphorus Compounds ; blood

OBJECTIVETo evaluate the relationship between epithelial mesenchymal transition (EMT) and lung metastasis in hepatocellular carcinoma.

METHODSThere were 100 patients who underwent surgical resection of hepatocellular carcinoma between January 2000 and March 2004. They were classified with non-distance metastasis and lung metastasis depend on the close following up till March 2007. Their hepatocellular carcinoma specimens were retrospectively examined for EMT markers (E-cadherin, Vimentin, Fibronectin) with immunochemistry staining in tissue microarray. Univariate and multivariate analysis were used for study the relationship between EMT and lung metastasis.

RESULTSUnivariate analysis showed that down regulation of E-cadherin, overexpression of fibronectin, cytosolic expression of vimentin, AFP >or= 400 ng/ml, tumor size more than 10 cm, portal vein involvement, poorly differentiated of tumor had close correlation with lung metastasis. Multivariate analysis indicated that overexpression of fibronectin was independent factor for lung metastasis apart from tumor size more than 10 cm, portal vein involvement and poorly differentiated of tumor.

CONCLUSIONThe results proposed that EMT has close relation with lung metastasis in hepatocellular carcinoma.

Adult ; Aged ; Cadherins ; metabolism ; Carcinoma, Hepatocellular ; metabolism ; pathology ; Cell Differentiation ; Epithelial Cells ; pathology ; Female ; Fibronectins ; metabolism ; Follow-Up Studies ; Humans ; Liver Neoplasms ; metabolism ; pathology ; Lung Neoplasms ; secondary ; Male ; Middle Aged ; Neoplasm Metastasis ; Stromal Cells ; pathology ; Vimentin ; metabolism

OBJECTIVETo study the prognostic identification of lymph node negative breast carcinoma by quantitative pathologic technique.

METHODSSeveral morphometrical parameters, DNA content of cell nuclei were detected by means of a quantitative pathologic technique on 102 patients with lymph node negative invasive breast duct carcinoma. The effects of potential prognostic factors of lymph node negative breast cancer patients were assessed by Cox's proportional hazards regression model.

RESULTSDNA index, minimal diameter of nuclei, area of nuclei, maximal diameter of nuclei, and the perimeter of nuclei are important factors to influence the prognosis.

CONCLUSIONQuantitative pathologic technique combined with valid statistical methods, as an objective means of assessing prognosis, may reliably improve the outcome in lymph node negative breast cancer.

Adult ; Aged ; Breast Neoplasms ; pathology ; DNA, Neoplasm ; analysis ; Female ; Humans ; Lymphatic Metastasis ; Middle Aged ; Multivariate Analysis ; Prognosis

Von Hippel-Lindau (VHL) disease is a benign or malignant tumor syndrome which involves multiple systems and organs.Recently,a patient was diagnosed and hospitalized with an initial clinical symptom of pancreatic multiple cystic space-occupying.Multidisciplinary examination and consultation confirmed that there were hemangioblastomas in cerebella,spinal cord and retina,but with no clinical symptoms;therefore,it was diagnosed as VHL disease.According to previous case reports,only a few single cases revealed lesions in so many parts of the central nervous system with typical imaging manifestations.We present an overview and aim to improve the diagnosis of VHL disease with the initial clinical symptom of pancreatic lesions.

Objective To explore the epidemiological characteristics of notifiable respiratory infectious diseases in Beijing from 2015 to 2018. Methods Descriptive epidemiological method was used to analyze the monitoring data of notifiable respiratory infectious diseases, and to describe the main characteristics of the diseases. Results Average annual reported incidence was 227.64/100 000, accounting for 36.24% of the total reports and deaths of notifiable infectious diseases. Class B and C respiratory infectious diseases showed a downward and upward trend respectively. The epidemic trend and risk population of the six major infectious diseases were different. Conclusions The incidence and mortality of legal respiratory infectious diseases in Beijing increases year by year due to the sharp increase of influenza from 2015 to 2018, and the responsibility of prevention and control is great. Respiratory infectious diseases have different epidemic season and predisposing population. Different prevention and control measures should be taken according to the different epidemic characteristics of different diseases.

This study is to investigate the expression of CyclinD1 in asthmatic rats and construct expression plasmids of sense and antisense CyclinD1 gene and transfect them to asthmatic airway smooth muscle cell to study the effects of CyclinD1 on the proliferation of airway smooth muscle cells in asthmatic rats. CyclinD1 cDNA was obtained by RT-PCR of total RNA extracted from the airway smooth muscle in asthmatic rats. The sequence was inserted into eukaryotic expression vector pcDNA3.1 (+) to recombinate the sense and antisense pcDNA3.1-CyclinD1 eukaryotic expression vector. The two recombinations and vector were then separately transfected into airway smooth muscle cell in asthmatic rats by using liposome. The expression level of CyclinD1 was certificated by Western blotting analysis. The proliferations of ASMCs isolated from asthmatic rats were examined with cell cycle analysis, MTT colorimetric assay and proliferating cell nuclear antigen (PCNA) immunocytochemical staining. Results showed (1) Compared with control group, the content of CyclinD1 was significantly increased; (2) It was comformed by restriction endonucleasa digestion and DNA sequence analysis that the expression plasmid of sense and antisense CyclinD1 were successfully recombinated. There was significant change of CyclinD1 expression between vector and sense CyclinD1 transfected cells, and the expression level of CyclinD1 in ASMC transfected with antisense CyclinD1 was lower than that in vector transfected cells (P <0.01); (3) In the asthmatic groups, compared with the vecter group, the percentage of S + G2M phase, absorbance A value of MTT and the expression rate of PCNA protein in ASMC transfected with pcDNA3. 1-CyclinD1 vector significantly increased. The values decreased remarkably in the pcDNA3,1-as CyclinD1 group. Statistical analysis revealed that there were significant differences in these indicators of cell proliferation in three groups (P <0.01). In the normal groups, statistical analysis revealed that there were significant differences in the percentage of S + G2M phase, a value of MTT and the expression rate of PCNA protein in three groups (P <0.01). Sense CyclinD1 eukaryotic expression vectors could have a positive effect on the proliferation of ASMC, however the antisence one have a negative effect, which implicated that CyclinD1 might contribute to the process of airway smooth muscle cell proliferation.
Animals ; Asthma ; pathology ; Cell Cycle ; drug effects ; Cell Proliferation ; drug effects ; Codon ; genetics ; pharmacology ; Cyclin D1 ; agonists ; antagonists & inhibitors ; genetics ; DNA, Antisense ; genetics ; pharmacology ; Disease Models, Animal ; Gene Expression ; Genetic Vectors ; genetics ; Male ; Myocytes, Smooth Muscle ; drug effects ; pathology ; Rats ; Rats, Sprague-Dawley ; Recombination, Genetic ; genetics ; Respiratory System ; Reverse Transcriptase Polymerase Chain Reaction ; Transduction, Genetic ; Transfection

OBJECTIVETo study the association between methylenetetrahydrofolate reductase (MTHFR) gene polymorphisms and toxicities after high-dose methotrexate (HD-MTX) infusion in children with acute lymphocytic leukemia (ALL).

METHODSMTHFR variants in 52 children with ALL were determined by reverse transcriptase-polymerase chain reaction-denaturing gradient gel electrophoresis and sequencing. Toxicities of children who received HD-MTX chemotherapy were evaluated according to the National Cancer Institute-Common Toxicity Criteria (NCI-CTC).

RESULTSThe children carrying MTHFR 1298AC had a higher risk of developing thrombocytopenia compared with the carriers of the 1298 AA genotype (OR=13.7, 95%CI=1.18-159.36, P=0.036). There was no significant difference in HD-MTX chemotherapy-related adverse effects between the patients with different MTHFR C677T or G1793A genotypes.

CONCLUSIONSMTHFR A1298C polymorohism may associate with the toxicity of HD-MTX chemotherapy in children with ALL.

Antimetabolites, Antineoplastic ; adverse effects ; Child ; Child, Preschool ; Female ; Genotype ; Humans ; Male ; Methotrexate ; adverse effects ; Methylenetetrahydrofolate Reductase (NADPH2) ; genetics ; Polymorphism, Genetic ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; genetics ; Reverse Transcriptase Polymerase Chain Reaction

China ; Female ; Genotype ; Hepatitis B virus ; genetics ; Hepatitis B, Chronic ; virology ; Humans ; Male