Objective: To construct a recombinant human inhibitor of growth 4 (hING4) gene and observe its growth inhibition effect on lung adenocarcinoma NCI H460 cells. Methods: The GFP-labeled recombinant adenovirus vector hING4 (Ad-hING4) was constructed using pcDNA3. 0-mING4 plasmid as a template and site-specific mutagenesis technique. RT-PCR and fluorescence microscope were used to detect the expression of hING4 in NCI H460 cells. Bax and Bcl-2 protein expression were detected by Western blotting. Colony formation assay and flow cytometry were used to observe the effect of hING4 on the proliferation and apoptosis of H460 cells. Results: DNA sequence analysis and PCR indicated that Ad-hING4 were successfully constructed. Ad-hING4 was expressed in lung cancer H460 cells and had obvious cytopathic effect (CPE). Western blotting suggested that hING4 gene caused up-regulation of Bax expression and down-regulation of Bcl-2 expression. Colony formation assay and flow cytometry showed that hING4 inhibited the proliferation of H460 cells and induced apoptosis of lung cancer cells. Conclusion: Ad-hING4 gene was successfully constructed. It inhibited the growth of lung cancer H460 cells in vitro.

Pericellular matrix (PCM) is a narrow tissue region surrounding chondrocytes, which "chondron" with its enclosed cells. A number of studies suggested that PCM is rich in proteoglycans, collagen and fibronectin, and plays an important role in regulating microenvironment of chondrocytes. Direct measures of PCM properties through micropipette aspiration technique showed that PCM was different from mechanical property of chondrocytes and nature extracellular matrix. However, the function of PCM is not clear, and need further study.
Animals ; Biomechanical Phenomena ; Chondrocytes ; chemistry ; cytology ; metabolism ; Extracellular Matrix ; chemistry ; metabolism ; Humans

To obtain the genome sequence of human bocavirus 2 (HBoV2), different regions of HBoV2 genome were amplified through PCR in fecal specimens which had been identified as single-positive for HBoV2 in 2010. A genome sequence of HBoV2 (HBoV2-NC, 5444 bp) was obtained after sequence assembly. The phylogenetic analysis showed that HBoV2-NC had the closest evolutionary relationship with HBoV2 Lanzhou strain. The predication of inverted terminal repeats of HBoV2-NC by DINAMelt showed that inverted terminal repeats were contained in HBoV2-NC 5' terminal, which had the typical stem-loop structure in other parvoviruses. Finally, some flanking sequences of HBoV2-NC were amplified by linker-PCR.
Base Sequence ; Gene Amplification ; Genome, Viral ; Human bocavirus ; chemistry ; classification ; genetics ; Humans ; Molecular Sequence Data ; Nucleic Acid Conformation ; Parvoviridae Infections ; virology ; Phylogeny ; RNA, Viral ; chemistry ; genetics ; Terminal Repeat Sequences

Human bocavirus 1 (HBoV1) is a novel virus that mainly causes respiratory tract infection, and it has the characteristic of genome of Parvovirus, containing three open reading frames that encode non-structural proteins NS1 and NP1 and structural proteins VP1 and VP2. Circular episome is present during the rolling circle replication of HBoV1, which provides the possibility of full genome amplification and infectious clone construction to save HBoV1. The recombination between HBoV1 and HBoV2-4 occurs frequently. With the three-dimensional culture, in vitro culture of HBoV1 provides a powerful tool for research on the pathogenesis of HBoV1. This review focuses on the molecular characteristics, association with diseases, in vitro culture, diagnosis and treatment of HBoV1.
Diarrhea ; virology ; Genomics ; Human bocavirus ; genetics ; isolation & purification ; physiology ; Humans ; Meningitis ; virology ; Respiratory Tract Diseases ; virology

The picornavirus family comprises many small viruses, several of which are important pathogens of humans and livestock. The 3C protease (3Cpro) of different species and genera of picornavirus contains the classic G-X-C-G motif and Cys-His-Asp/Glu catalytic triad. 3Cpro conducts maturation cleavage in the regions of VP2-VP3 and VP3-VP1 in P1, 2A-2B and 2B-2C in P2 and the whole P3. Picornavirus 3Cpro has been shown to have significant substrate preference in Q-G/S/A/V/H/R and E-S/G/R/M as well as species and genera specificity through analyses of the maturation cleavage of picornavirus polyproteins. Innate immune adaptors such as TRIF, MAVS, IRF3, IRF7 and NEMO have various potential cleavage sites in picornavirus 3Cpro (TRIF and NEMO show considerable diversity in their cleavage sites). Useful information will be provided for the development of broad-spectrum antiviral agents as well as evasion mechanisms of the innate immune system against picornavirus 3Cpro through continued research of picornavirus 3Cpro.
Cysteine Endopeptidases ; physiology ; Immunity, Innate ; Picornaviridae ; enzymology ; immunology ; Viral Proteins ; physiology ; Virus Replication

Seven meroterpenoids and five small-molecular precursors were isolated from Penicillium sp., an endophytic fungus from Dysosma versipellis. The structures of new compounds, 11beta-acetoxyisoaustinone (1) and isoberkedienolactone (2) were elucidated based on analysis of the spectral data, and the absolute configuration of 2 was established by TDDFT ECD calculation with satisfactory match to its experimental ECD data. Meroterpenoids originated tetraketide and pentaketide precursors, resepectively, were found to be simultaneously produced in specific fungus of Penicillium species. These compounds showed weak cytotoxicity in vitro against HCT-116, HepG2, BGC-823, NCI-H1650, and A2780 cell lines with IC 50 > 10 micromol x L(-1).
Berberidaceae ; microbiology ; Cell Line ; Cell Line, Tumor ; Humans ; Lactones ; isolation & purification ; pharmacology ; Monoterpenes ; isolation & purification ; pharmacology ; Penicillium ; chemistry

Aneurysm, Dissecting ; surgery ; Aorta, Thoracic ; surgery ; Aortic Aneurysm, Thoracic ; surgery ; Endovascular Procedures ; methods ; Humans ; Male ; Middle Aged

Objective: To analyze the change in community first diagnosis and two-way referral rate under the condition of the regional longitudinal medical consortium implementation in the country at large. According to the simulation results,some suggestions for hierarchical medical system were put forward. Methods : The community first diagnosis and two-way referral rates were determined using the literature meta-analysis, and were simulated under different conditions by means of the system dynamics. Results :The analysis results confirmed that simply increasing the financial subsidies can increase the community first diagnosis rate within a range from 0.08％ to 0. 17％. For in case increases are made by the government in technical financial input to enhance the technical level of the community health service centers and in compensatory financial input to reduce the higher hospitals dependence on the light disease, results showed that the lower conversion rate increased within the range of 0.33％～0.45％ in terms of the two-way referral rating. On the contrary, when technical financial input is increased to improve the technical level of community health service centers, the rate of change was in the range of 7.52％ '- 12.61％ - Conclusions : Firstly, the diversified strategy should be used to promote the achievement of graded diagnosis and treatment. Secondly, the Health Commission plays a key role in the promotion of themedical consortiumconstruction. Thirdly, medical insurance reimbursement differential strategy should be implemented and the supply-side reform should be strengthened. At last,attention should be paid to the rational development of existing referrals, especially the upper and lower ones.

OBJECTIVETo observe the efficacy of 5-aminolevulinic acid photodynamic therapy (ALA-PDT) for treating psoriasis vulgaris in guinea pigs.

METHODSExperimental psoriasis vulgaris was induced in guinea pigs by application of 5% propranolol on the ear skin. After dressing of the skin lesion with 20% ALA solution for 4 h, the lesions were irradiated with a semiconductor laser at the wavelength of 635 nm and energy density of 12 J/cm(2). The guinea pigs were divided into control group, ALA only group, light only group, single ALA-PDT treatment group and twice ALA-PDT treatment group. In each group, gross observation and biopsy of the skin lesions was conducted on days 7, 14, 21 and 28 after the treatment.

RESULTSIn terms of gross observation of the lesion, epidermal thickness and proliferating cell nuclear antigen (PCNA) expression, ALA-PDT treatment showed obvious therapeutic effect on the skin lesion, and two treatment sessions resulted in better effect than a single session.

CONCLUSIONALA-PDT can cure psoriasis vulgaris lesions characterized by abnormal epidermal proliferation in guinea pigs, and multiple treatment sessions can achieve better effects.

Acne Vulgaris ; drug therapy ; Aminolevulinic Acid ; therapeutic use ; Animals ; Guinea Pigs ; Photochemotherapy ; Photosensitizing Agents ; therapeutic use ; Psoriasis ; drug therapy

OBJECTIVETo evaluate the clinical effects of microvascular decompression in treating trigeminal neuralgia.

METHODSSurgical experience and operative findings of 2643 cases of trigeminal neuralgia treated by microvascular decompression were analyzed retrospectively.

RESULTSTwo thousand four hundred and eighty-seven of 2643 cases were cured, 76 cases were ineffectiveness, 48 cases were effectiveness and 31 were ineffective. One patient died. Two thousand one hundred and thirty-six cases were followed up in 3-240 months, 1918 cases were cured, 85 cases were obviously effective, 39 cases were effective and 30 were ineffective. Sixty-four cases were pain relapsed and 37 cases were cured by second operation among them.

CONCLUSIONThe etiology of trigeminal neuralgia is that the unusual vascular oppress the root entry zone, and arachnoid membrane circling the nerve is thickened and sticked. To untie the arachnoid membrane and decompress the offending vascular is the effective methods in treating trigeminal neuralgia.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Decompression, Surgical ; methods ; Female ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; Retrospective Studies ; Treatment Outcome ; Trigeminal Neuralgia ; etiology ; surgery ; Vascular Surgical Procedures ; methods