Objective Published literatures on the relationship between IL-13 gene polymorphism and the susceptibility of children to bronchial asthma in China were comprehensively analyzed with the use of Meta-analysis to evaluate this relationship.Methods The data were collected from the Medline database,Ovid database,the Cochrane library,and Chinese Biomedical database,and the references of eligible studies were manually screened.Published data related to case-control studies reporting the link between IL-13 polymorphisms and asthma in Chinese children were retrieved through those database.Meta-analysis was conducted to determine whether the IL-13 gene polymorphisms were associated with asthma.Results Eighteen studies were finally accepted for analysis.There were three studies focusing on C-1 112T polymorphism,and six studies focusing on C + 1923T polymorphism,and fourteen studies focusing on G + 2044A polymorphism.There was no evidence to confirm that the genotypes in position IL-13-1112 C/T were associated with asthma in Chinese children [odds ratio(OR) =1.00,95％ CI 0.82-1.22,P =0.98].The OR of asthma for TT/CC genotypes was 1.15 (95 ％ CI 0.57-2.33,P =0.69) and for CT/CC was 1.01 (95 ％ CI 0.82-1.25,P =0.89).There was significant evidence to confirm that the genotypes in position + 1923 C/T were associated with asthma in Chinese children(OR =1.86,95％ CI 1.29-2.67,P =0.000 9).The OR of asthma for TT/CC genotypes was 2.12 (95 ％ CI 1.27-3.56,P =0.004) and for TC/CC was 1.67 (95％ CI 1.18-2.35,P =0.003).There was no correlation between IL-13 + 2044G/A polymorphism and the susceptibility (OR =1.33,95％ CI 0.94-1.88,P =0.11).The OR of asthma for AA/GG genotypes was 1.30 (95 ％ CI 0.76-2.20,P =0.34) and for AG/GG was 1.24(95％ CI 0.90-1.70,P =0.19).Conclusions IL-13 gene + 1923 TT and TC genotypes should be associated with susceptibility of asthma in Chinese children,and the T allele could increase the risk of asthma.No clear relationship was found between the genotype TT/TC at the IL-13-1112 site and the incidence of asthma of children in China,and so was the genotype AA/AG at the IL-13 +2044 site and the incidence.

Objective To investigate the methods and effects of nasolabial flaps for repair of defects after skin tumor removal on midface.Methods From Augest 2012 to March 2015,the different flaps from nasolabial fold were utilized to repair 22 skin defects due to surgical removal of skin tumors on midface.There were 12 flaps with subcutaneous pedicle and 10 flaps with skin pedicle in the group.The size of the defects ranged from0.5cm × 1.0cmto4.0cm × 5.0cm.Results After operation,all flaps survived with primary healing,cosmetic results were satisfactory with conceal scar and no facial organs distortion after 1 month to 2 years following-up.No tumor recurrence occurred.Conclusions Thenasolabial flaps with appropriate pedicles could obtain the satisfactory results for the reconstruction of medium-sized skin defects on midface,especially suitable for middle-aged and elderly patients.

OBJECTIVETo investigate the pathogenic and clinical presentation and laboratory tests of bullous rash in hand, foot and mouth disease (HFMD) in Xi'an from January 2013 to December 2014 by retrospective analysis.

METHODA total of 224 specimens were collected from clinically diagnosed HFMD cases who were characterized by widespread mucocutaneous bullous reactions in Xi'an Children's Hospital from January 2013 to December 2014, the identification and subtyping of the isolates were conducted with real-time fluorescent quantitative RT-PCR. A retrospective analysis was performed to analyze the clinical presentation, laboratory tests and late follow-up problems of the HFMD.

RESULTIn the clinically diagnosed HFMD cases who were characterized by widespread mucocutaneous bullous reactions, 207 were caused by coxsackievirus A6 (CA6), accounting for 92. 4% of all cases with bullous, 4 were caused by enterovirus 71 (EV71), accounting for 1.8%, 10 were caused by coxsackievirus A16 (CA16), accounting for 4. 5%; 4 cases were negative for these viruses. In the cases positive for intestinal virus-nucleic acid, 130 were male, 90 were female; male to female ratio was 1. 44: 1, 203 were <5 years old, accounting for 92. 3%. Leukocytosis was found in 75 cases (34. 1%); high-sensitivity C-reactive protein (hsCRP) increased in 200 cases (90. 9%); elevated myocardial enzyme CK-MB was found in 35 cases (15. 9%), alanine aminotransferase increased in 15 cases (6. 8%); 187 cases had fever (85. 0%). None of the cases had serious complications such as encephalitis or myocarditis. In the course of the critical phase bullous rash or large vesicle-like changes, obvious itching, and facial rash appeared. After the fluid in the bullae was absorbed or the bullae ruptured or became ulcerated, scar formation and large areas of exfoliation occurred, with no effusion on the newly formed epithelium in the base, without significant pigmentation on later follow-up. In the late follow up process, 52 cases in CA6-positive patients (25. 1%) developed onychomadesis within 2-4 weeks after onset, 1 to 8 nails, an average of 4. 3 fell off, new nails grew, the nail bed showed no structural abnormalities and hyperplasia after falling off, the surface was smooth, had no hypertrophy, left no sequelae.

CONCLUSIONThe pathogen in HFMD characterized by widespread bullous reactions was mainly the CA6, this kind of HFMD was mainly mild type, with significant itching, later the bullae may have scar formation and skin exfoliation, in some cases onychomadesis may occur.

Child ; Enterovirus A, Human ; Enterovirus Infections ; pathology ; Exanthema ; pathology ; Female ; Fever ; Hand, Foot and Mouth Disease ; pathology ; Humans ; Male ; Pruritus ; Retrospective Studies

China ; Hemorrhagic Fever with Renal Syndrome ; Humans ; Prevalence ; Vaccination

BACKGROUND: Although the sternohyoid muscular valves are traditionally used as reparative material for functional reconstruction after partial laryngectomy, the late-term results are not so satisfactory.OBJECTIVE: To investigate the efficacy of using external layer mucoperiosteum valve of thyroid cartilage to repair the wound surface and reconstruct vocal function.DESIGN: A self-controlled observational trial using the patients as subjects.SETTING: Department of otolaryngology of a municipal hospital.PARTICIPANTS: A total of 57 patients with laryngocarcinoma were selected from the Department of Otolaryngology, Shantou Second People' s Hospital, from June 1998 to May 2004. Among them, there were 56 men and 1 woman who were aged 37 to 78 years with the average age of 60. 38 years and whose disease duration was two months to one year with the average of five months.METHODS: In the 57 patients with laryngocarcinoma, their external layer mucoperiosteum valves of thyroid cartilages in the affected side were preserved and inverted into laryngeal cavities, which were used to cover the wound surface and rebuild the vocal fold.MAIN OUTCOME MEASURES: The final outcome indices: changes in the symtoms and function and Karnofsky scores before and after treatment. Risk indices: adverse events and side effects.RESULTS: The operations on the 57 patients were successful. The incidence of respiratory tract obstruction and hoarseness in the patients before operation was 38.9% and 98. 1%, but 1.9% and 96. 3% after treatment. Karnofsky score was 40 and 70 before and after treatment, respectively. No complications of pharyngeal stricture occurred in the near and long term.CONCLUSION: Vertical partial laryngectomy and laryngeal reconstruction with mucoperiosteum valve are easy to operate. The recovery of the wound surface is good, phonation efficacy is satisfacory, and respiratory function is not affected. The treatment has low incidence of complications and satisfactory long-term results.

Objective To prepare sorafenib (SFN )/mesoporous silica solid dispersion (SD) and investigate characteris-tics in vitro and in vivo .Methods The SD was prepared by solvent evaporation method ;the optimal ratio of SFN to meso-porous silica was determined by examining the dissolution of formula ,the drug state and physical stability of SD were examined by DSC and XRD ;the surface morphology was characterized by electron microscope ;the pharmacokinetics of SD was studied for the solid dispersion which compared with SFN powders in vivo study using rats .Results SFN raw drug was crystalline and its dissolution was <10% ;the dissolution of SD increased with an increase in amount of mesoporous silica ;when the ratio of SFN to mesoporous silica was 1∶5 ,drug in SD was non-crystalline state and the dissolution was >90% .The physical state and dissolution of SFN in SD were hardly changed during the six months accelerated test .The cmax of SD groupwas 1 .8 times that of powder group ,relative bioavailability was 175% .Conclusion The physical stability of self-preparing solid dispersions is good ,the dissolution and oral absorption are improved by solid dispersion .

Objective To explore the characteristics of intestinal Microbiota in T2DM patients by two molecular fingerprint technologies,and investigate the correlation of intestinal microbiota and T2DM,and evaluate the application value of two fin-gerprint technologies.Methods Fecal samples of 8 healthy groups and 7 diabetes patients were collected.Then the total DNA of gut microbiota was extracted.Through the analysis of products by two molecular fingerprints of ERIC-PCR and DGGE-PCR,ecological characteristics of diversity and similarity of gut microbiota were obtained in healthy groups and dia-betes patients.Results Compared to healthy groups,the number of bands and Shannon-Wiener index of gut microbiota in di-abetes patients was decreased but no statistical significance.The similarity in patients group was declining(P <0.05),and the construction of gut microbiota was inclined to differ.Two fingerprint technologies of ERIC and DGGE could directly re-flect the diversity of gut microbiota and were the modern molecular biological techniques without depending on cultivation. ERIC was simple and convenient,had a better reflection of microbial diversity,but gel band cutting and regarded asa proper approach with higher diffraction efficiency and excellent repetition to studysequencing couldn’t be performed since there were more influencing factors on the experiment.DGGE could better reflect the ecological characteristics such as microbial diversity and similarity,and selecting bands,gel band cutting and sequencing could be done.Conclusion The composition and construction of gut microbiota in diabetes patients were changed,which suggests the occurrence of the disease had the correlation with gut microbiota.ERIC and DGGE is regarded as a proper approach with higher diffraction efficiency and ex-cellent repetition to study intestinal microbiota,but also gel band cutting,sequencing,bacteria identification can be performed by DGGE,both can be used in combination.

In this study, we produced a biphasic absorbable calcined bone (CB) of beta-TCP/HAP, and evaluated its function as a carrier of bone marrow derived mesenchymal stem cells(BMSCs) in BMP-2 gene medicine. Biphasic CB was manufactured and its surface was coated by collagen. X-ray diffraction analysis, scanning electron microscopy and biomechanical measurement were performed on the product. Heterotopic bone induction of product as carrier of BMP-2 gene transferred BMSCs and its biodegradability were tested in nude mice and goats. X-ray diffraction analysis showed biphasic patterns of HAP and beta-TCP. Scanning electron microscopy showed the porosity were similar to those of the cancellous bone, and the adhesion of cells on the CB surface were better after surface-coating with collagen. It had certain biomechanical strength and appropriate biodegradability. Biphasic CB loaded with Adv-hBMP-2 transduced BMSCs could induce much bony callus at the subcutaneous site of nude mice and the tibial bone defects of goats. The results showed biphasic CB is a superior carrier of cells in BMP-2 gene medicine.
Animals ; Biodegradation, Environmental ; Bone Morphogenetic Protein 2 ; Bone Morphogenetic Proteins ; genetics ; Bone Regeneration ; drug effects ; Bone Substitutes ; chemistry ; pharmacology ; Calcium Phosphates ; pharmacology ; Cell Differentiation ; Goats ; Hydroxyapatites ; pharmacology ; Materials Testing ; Mesenchymal Stromal Cells ; cytology ; Mice ; Mice, Nude ; Transfection ; Transforming Growth Factor beta

This study aimed to investigate the protective effect of total alkaloids(TA)and one of the active components, neotuberostemonine, of Stemona tuberosa on bleomycin-induced pulmonary fibrosis in mice and to explore the mechanism by fibroblasts model. The bleomycin-induced mice were orally administered with TA(60 mg/kg)and neotuberostemonine(10, 20 mg/kg), with prednisone(6. 67 mg/kg)as a positive control. The anti-fibrotic effects were assessed by hydroxyproline content, TGF-β1 level, inflammatory score, collagen deposition and the expression of α-SMA in the lung tissues. The results revealed that TA and neotuberostemonine could significantly ameliorate the inflammation and injury, and attenuate the hydroxyproline content and collagen deposition. Moreover, neotuberostemonine treatment markedly down-regulated the α-SMA level and TGF-β1 content in bleomycin-injured mice lungs. The in vitro experiments showed that neotuberostemonine inhibited the expression of α-SMA induced by TGF-β1 in a dose-dependent manner, indicating that suppression on differentiation of fibroblasts to myofibroblasts may be one of the mechanisms for neotuberostemonine against pulmonary fibrosis.

Objective To establish a culture method for primary human nail matrix cells in serumfree media.Methods Nail matrix tissues were collected from 9 patients,who received nail or toe amputation and nail bed repair in Peking University Shenzhen Hospital between January 2016 and December 2016,and cultured in the serum-free DEME/F-12 media at a 37℃ incubator with an atmosphere of 5％ CO2 in air for 2-3 days.Then,primary human nail matrix cells were cultured in keratinocyte serumfree media (CnT-07),and the morphology of human nail matrix cells was observed by microscopy during the culture process.Immunofluorescence cytochemistry with anti-keratin 5 (K5) and K10 was performed to identify the acquired cells,and flow cytometry to analyze the cell purity.Results After 2 or 3 days of the culture,some cells began to crawl out from the tissue.On day 10,large cell masses were formed,some cells were morphologically similar to epithelioid cells arranged in a paving stone-like pattern,and some were flat giving a spindle-shaped or star-shaped appearance.Immunofluorescence cytochemistry showed that some cells could express both K5 and K10,which proved the existence of nail matrix cells,and 37.6％ of the cells expressed K10.Conclusion Human primary nail matrix cells could be successfully cultured by using the tissue culture method with serum-free culture media,and the nail matrix cells cultured in vitro can express both K5 and K10.