Systemic Sclerosis(SSc) is a fibrotic disease characterized by immunological abnormalities,vascular injury and increased accumulation of extracellular matrix.The etiology has not been fully elucidated yet,so we need to establish a suitable animal model for research.This review is to introduce murine model of bleomycin-induced SSc,and summarize research works on the pathogenesis and treatment of SSc based on this model.

Carcinoma, Papillary ; genetics ; Humans ; Mutation ; Proto-Oncogene Proteins B-raf ; genetics ; Thyroid Neoplasms ; genetics

Objective:To evaluate the efficiency and safty of home-bleaching.Methods:Randomised controlled trials on home-bleaching were searched using CBM,CNKI,Medline,EMBASE and Cochrane Library up to April,201 3.The articles were selected by inclusion criterion,qualified by Cochrane system and analysed by Meta method.Results:1 2 studies with 61 1 cases were finally includ-ed and analysed.The results showed that 1 0% carbamide peroxide (CP)produced better bleaching efficiency than 1 5% CP(MD, 0.21 ;CI:[0.03,0.38];Z =1 .92;P =0.002).Hydrogen peroxide(HP)at 35% lead to higher tooth sensitivity in office-bleaching than CP at 1 0% in home-bleaching(MD,-1 .68;95%CI:[-2.75,-0.61 ];Z =3.09;P =0.002);home-bleaching were asso-ciated with less tooth sensitivity than office-bleaching(MD,-2.64;95%CI:[-3.96,-1 .32];Z =3.93;P <0.000 1 ),while there was no significance of tooth sensitivity between home-bleaching using CP and HP (OR,1 .94;95%CI:[0.84,4.44];Z =1 .56;P =0.1 2).Conclusion:1 0% CP home-bleaching may produce better bleaching efficiency;home-bleaching is associated with less tooth sensitivity than office-bleaching.

Child ; Female ; Humans ; Influenza A Virus, H5N1 Subtype ; Influenza, Human ; complications ; diagnostic imaging ; Pneumonia, Viral ; diagnostic imaging ; virology ; Radiography

RNA-seq can help us quickly obtain the whole transcriptome sequences of species under different conditions. Many Unigenes that are assembled by raw reads always do not contain complete open reading frame (ORF). In addition, it also has some redundancy in transcriptome library. Some Unigenes in the library, although belong to one transcript, cannot be assembled without overlapping. We found five incomplete Unigenes annotated ammonium transporter (AMT) from Salicornia europaea transcriptome, in which two Unigenes (Uni4 and Uni5) had identical expression patterns across four transcriptomes. The two Unigenes may come from one transcript. Analyzing the Unigene position of transcript by NCBI blastx, we found that Uni4 and Uni5 respectively located in 5' end and 3' end compared with the reference transcript, and an unknown gap of 120 bp may exist in a hypothetic transcript to which Uni4 and Uni5 both belong. To verify the hypothesis, single forward primer and single reverse primers were respectively designed on Uni4 and Uni5, and a fragment with about 800 bp was generated by PCR. Then it was sequenced and aligned with Uni4 and Uni5. Finally, we assembled a sequence with 1 667 bp, which contains a complete ORF (1 482 bp, coding 494 amino acids). It belongs to amt1 subfamily and was named Seamt1 via the phylogenetic analysis. It was pointed by bioinformatics tools that SeAMT1 protein conformed to the AMT characteristics of other species. This work clustered expression pattern to explore the Unigenes of one transcript, and the feasibility of this method was validated through the other two groups of Unigenes. The handy method will benefit extension and assembling of Unigene in transcriptome, it also helps achieve the complete ORF and gene function.
Ammonium Compounds ; Chenopodiaceae ; genetics ; Computational Biology ; Gene Expression Profiling ; Genes, Plant ; Membrane Transport Proteins ; genetics ; Molecular Sequence Annotation ; Open Reading Frames ; Phylogeny ; Plant Proteins ; genetics ; Transcriptome

Coronary Artery Disease ; Humans ; Osteoprotegerin

Objective To investigate the clinical features of polymyositis and dermatomyositis ( PM/DM) with lym-phoma .Methods The clinical data , treatment and prognosis of PM/DM with lymphoma from 2000 to 2015 in Pe-king Union Medical College Hospital were retrospectively collected and analyzed .Results Ten cases of PM/DM patients complicated with lymphoma were recruited .6 were female and 4 was male.The mean ages of the diagnosis of PM/DM and lymphoma were 44.5 and 44.9 years old respectively .The average disease course from PM/DM to lymphoma was 4.7months.Six cases were dermatomyositis and 4 cases were polymyositis.Three cases had pulmo-nary fibrosis and 2 cases had arthritis .No case had a positive result of anti-Jo-1 antibody .The most frequent symp-toms complicated with lymphoma included as following:enlargement of lymph nodes (9 cases), fever (8 cases), splenomegaly(5 cases).The top 3 lymphoma biopsy specimen included lymph node (4 cases), skin(2 cases)and local mass(2 cases).All the 10 patients were diagnosed as non-Hodgkin lymphoma.4 cases were derived from T cell, 2 cases from B cell, and 4 cases with unknown origin .The clinical staging showed III B (4 cases) and IV B (6 cases).Immunosuppressant agents were given to treat PM/DM.During the follow-up period, 5 patients died, 4 patients received chemotherapy and 1 patient was lost .Conclusions The coincidence of PM/DM and lymphoma is not rare .The course between PM/DM and lymphoma is short , and the mortality is significant , which should arise the attention of clinicians .

Objective To study the gene mutations and clinical features of mandibuloacral dysplasia with type A lipodystrophy (MADA) in a Chinese family. Methods The information of 5 family members including 2 siblings suspected atyp-ical progeria was assembled. Genomic DNA was extracted from peripheral blood of 5 family members, the 12 exons of LMNA gene were ampliifed by PCR and then the PCR products were directly sequenced and analyzed by using Blast software online. The SIFT and PolyPhen-2 software were used to predict the harmfulness of mutations. Results The 2 siblings were clinically diagnosed as MADA. Heterozygous c.1579C>T (p.Arg527Cys) and c.1583C>T (p.Thr528Met) mutations were detected in this family. The father carried c.1583C>T (p.Thr528Met) mutation, the mother carried c.1579C>T (p.Arg527Cys) mutation, and their normal daughter were all heterozygous carriers with c.1583C>T (p.Thr528Met) mutation. Compound heterozygous c.1579C>T (p.Arg527Cys) and c.1583C>T (p.Thr528Met) mutations in 2 siblings led to MADA. The MADA showed an autosomal re-cessive inheritance pattern in this family. Conclusions The 2 siblings with MADA in this family were caused by compound heterozygous mutations in LMNA gene.

Objective To study the influence of quedcetin on the collagen synthesis of cultured fibroblasts and to explore the mechanism.Methods The inhibitory effect of quercetin and radiation on fibroblast proliferation was assayed using MTT assay.Collagen synthesis was detected by hydroxyproline colorimetric analysis.Immunocytochemical staining method was used to investigate the expression of collagen Ⅰ and Ⅲ.The mRNA expression of typeⅠ,type Ⅲ collagens and TGF?-1 were assayed by reverse transcriptionpolymerase chain reaction(RT-PCR) and real-time PCR technique.Results Keloid fibroblast cell proliferation and collagen synthesis of fibroblasts were inhibited by quercetin in a dose-dependent manner.Significant inhibition was observed by the treatment with quercetin and radiation together.Immunocytochemical staining indicated the IOD of type I and Ⅲ collagen protein was down-regulated by quercetin and radiation.Both collagen Ⅰ and collagen Ⅲ gene in the quercetin groups showed a significantly decreased mRNA expression compared with that in the untreated group,especially in the group treated with both quercetin and X-ray.Procollagen gene expression was inhibited and then decreased type Ⅰ and Ⅲ protein syntheses of fibroblsts,particularly type Ⅰ procollagen gene(P

Objective To explore the early diagnosis and treatment of congenital mesenteric hiatual hernia.Methods A retrospective study was carried out in 4 patients with congenital mesenteric hiatual hernia in Tongji hospital from Nov.2005 to Mar.2007,and combining lite-rature,the diagnosis and treatment of mesenteric hiatal hernia was summed up.Results Four patients were diagnosed in operation.One case was thought as adhesive intestinal obstruction before operation;two patients were on emergency operation and 2 patients were on time-elective operation;one patient preoperative CT scan may suggest mesenteric hiatal hernia;one case had partial resection of small intestinal,the others were replaced the intestine and fixed the defect.One patient occurred early septic shock;all of them had get well.Conclusions It′s hard to diagnose the congenital mesenteric hiatual hernia before operation.Abdomen CT examination and multislice spiral CT angiography (MSCTA) help to diagnose.Early diagnosis and timely operation are the therapeutic key of congenital mesenteric hiatual heria.For the patients with recurrent abdominal pain,who was not confirmed with a variety of inspection,laparoscopic exploration can provide diagnosis,and can take the initiative to control the development of disease.