Objective To study the feasibility and curative effect of transumbilical single-incision (TSIL) vs multiple-incision (MIL) laparoscopic splenectomy.Methods Ten cases (2 cases of idiopathic thrombocytopenia purpura,1 case of hereditary spherocytosis,3 cases of splenic hemangioma and 4 cases of cirrhotic splenomegaly) underwent TSIL from Jan 2010 to Ju12011,and 12 cases (3 cases of ITP,2 cases of hereditary spherocytosis,3 cases of splenic hemangioma and 4 cases of splenomegaly) underwent MIL.Clinical data were compared with each other.Results No severe complications occurred in either group.The mean operation time of single-incision group and multiple-incision group was ( 182 ± 23 ) min and ( 169 ± 19) min,and blood loss was( 160 ± 13 ) ml and ( 155 ± 16) ml ( P ＞ 0.05 ).The post-operative pain score in TSIL and in MIL group was respectively [ ( 1.60 ± 0.20) vs (3.60 ± 0.90) on day 1,P ＜ 0.05 ; (0.50 ±0.10) vs (2.00 ±0.45) on day 2,P ＜0.05].There was no significant difference between the two groups in the recovery of the gastrointestinal function,the length of hospital stay and the cost of hospitalization, all P ＞ 0.05.The umbilical incision in TSIL cases is more cosmetic.Conclusions Transumbilical single-incision laparoscopic splenectomy is feasible and safe in experienced hands.

ATP-binding cassette protein E (ABCE1) has been annotated as an Rnase L inhibitor in eukaryotes. Previous study showed that the overexpression of ABCE1 was related with the occurrence and clinical stage of lung adenocarcinoma. As an initial investigation into the novel functions of ABCE1, siRNA-expressing vectors targeting sites of the ABCE1 gene were constructed from RNAi-Ready pSIREN-DNR-DsRed-Express vector. Cultured 95-D and NCI-H446 lung carcinoma cells were transfected with the siRNA-expressing vectors using FuGENE 6 and transfection efficiency was determined by using fluorescence microscopy. The expression level of ABCE1 protein was determined by Western blot and immunofluorescence staining. Cell viability was determined by MTT, cell cycle was analysed by flow cytometry.The apoptotic rate was observed by ELISA. Fluorescence microscopy showed a satisfactory transfection efficiency which was about 42.70%. Cell viability and the growth fraction were markedly suppressed, whereas the apoptosis was significantly increased in SiRNA-95-D and SiRNA-NCI-H446 cells than controls(P< 0.05). It can be concluded that the siRNA targeting ABCE1 gene shows a dramatic inhibitory effect on RNA transcription and protein expression and a promoting effect on the apoptosis in 95-D/NCI-H446 cells, which offers a reliable base for the further in vivo experiment.

The aim of this study was to propose an algorithm for three-dimensional projection onto convex sets (3D POCS) to achieve super resolution reconstruction of 3D lung computer tomography (CT) images, and to introduce multi-resolution mixed display mode to make 3D visualization of pulmonary nodules. Firstly, we built the low resolution 3D images which have spatial displacement in sub pixel level between each other and generate the reference image. Then, we mapped the low resolution images into the high resolution reference image using 3D motion estimation and revised the reference image based on the consistency constraint convex sets to reconstruct the 3D high resolution images iteratively. Finally, we displayed the different resolution images simultaneously. We then estimated the performance of provided method on 5 image sets and compared them with those of 3 interpolation reconstruction methods. The experiments showed that the performance of 3D POCS algorithm was better than that of 3 interpolation reconstruction methods in two aspects, i.e., subjective and objective aspects, and mixed display mode is suitable to the 3D visualization of high resolution of pulmonary nodules.
Algorithms ; Humans ; Imaging, Three-Dimensional ; Lung ; pathology ; Multiple Pulmonary Nodules ; diagnosis ; Tomography, X-Ray Computed

OB J ECT I V E To explore the adjacentpatterns between adenoid and Eustachian cushion in hypertrophic adenoid children and to study its relationship with otitis media with effusion(OME). METHODS A retrospective analysis was conducted in 144 cases of pediatric adenoidal hypertrophy(or concurrenttonsil hypertrophy) admitted for adenoid ablation under the 700 nasal endoscope. Children were divided into 3 groups(TypeⅠ, Ⅱ and Ⅲ) according to adjacentpatterns between adenoid and Eustachian cushion.The incidence of OME, severe hypertrophy of adenoid(A/N>0.7) in differentgroup were analyzed. RESULTS There were 34 children (23.6%) with OME, 3 (9.1%) in type Ⅰ, 10(16.9%) in type Ⅱ and 21(40.4%) in type Ⅲ. No significantdifference was existed between the incidence of OME in type Ⅰ and Ⅱ. In contrast, significantdifference were found in the incidence of OME between the type Ⅲ and type Ⅰ, Ⅱ. The incidence of severe adenoid hypertrophy was 34.9% in typeⅠandⅡ children and 82.2% in type Ⅲ children(P<0.05). CONCLUSION Adjacentpatterns between adenoid and Eustachian cushion, the degree of adenoid hypertrophy play an importantrole in the incidence of OME.

ObjectiveTo investigate the related risk factors ot the portal vein thrombosis (PVT) in patients with liver cirrhosis.MethodsThirty-seven liver cirrhosis patients with PVT (PVT group) and 100 liver cirrhosis patients without PVT (control group) from Jan.2007 to Dec.2009 were enrolled.The clinical data of these patients were collected and the related risk factors of PVT were analyzed.ResultsThe increase of D-dimer,severe esophageal varices(EV) and portal hypertension gastropathy(PHG) were the risk factors of PVT in liver cirrhosis patients(OR =12.872,3.916 and 2.851).No significant correlation was found between sex,platelets,albumin and PVT.ConclusionsThe increase of D-dimer,severe EV and PHG are the main risk factors of PVT.The above examinations should be used to monitor patients with liver cirrhosis for early prevention and diagnosis of PVT.

Objective To understand the relationship between GATA -4,-5,-6 gene mutations and con-genital heart disease(CHD),and to provide grounds for early prevention and genetic counseling of children with CHD. Methods GATA -4,-5,-6 coding regions exons and the flanking intron sequences in 1 98 CHD patients were screened,including 66 cases of the ventricular septal defects,84 cases of the atrial septal defects,and 48 cases of the nonsyndromic conotruncal heart defects patients.A total of 300 healthy subjects were selected as controls.The acquired sequences were aligned with which those publicized in GenBank by the aid of program BLAST.All exons and bilateral partial intron -exon boundaries of GATA -4,-5,-6 genes were amplified by the polymerase chain reaction (PCR). The PCR products were purified and directly sequenced by automatic DNA sequence equipment.The acquired GATA -4,-5,-6 gene sequences were compared with GenBank standard gene sequences with the aid of program BLAST. Results A heterozygous missense mutation in the GATA -4 gene was identified in a ventricular septal defect patient and a persistent truncus arteriosus patient.The mutation was located in c.799G >A(p.V267M)in exon 4 of GATA -4. Multiple aligenment of GATA -4 proteins across species demonstrated that altered amino acid was highly conserved. Transcription factor GATA -5,-6 screening showed no mutations in children with CHD in this study.Conclusions Transcription factor GATA -4 gene mutation may be associated with the occurrence of CHD.Transcription factor GATA -4 gene may be susceptible gene in human CHD.

A reusable chronocoulometric adenosine triphosphate (ATP)-aptamer sensor was developed in this work.A short chain of DNA marked as cDNA containing complementary sequence was immobilized on gold electrode based on Au-S self-assembly.The ATP aptamer was hybridized with cDNA.The surface-confined DNA could bind with [Ru(NH3)63+ (RuHex) in the electrolyte via electrostatic interaction.Upon target ATP binding, the aptamer confined onto electrode surface was disassociated from the cDNA oligonucleotides into the solution.Such surface density change of DNA lead to the decrease of chronocoulometric signal for the RuHex which confined on the electrode surface.The chronocoulometric signals showed a linear relationship with logrithm of ATP concentration in the range of 1 nmol/L to 100 μmol/L, and the detection limit of this aptamer sensor could reach 0.5 nmol/L (S/N=3).This aptamer sensor could be regenerated 5 times by simple steps.With this aptamer sensor, the basal level of ATP in the brain cortex micorodialysate was determined to be 19.2±3.7 nmol/L (n=3).

Objective To observe the therapeutic effect of single lower limb traction plus massage for the lumbosacral tunnel syndrome.Methods The selected 80 candidate patients were divided into the observation group with 38 patients and treatment group with 39 patients. The observation group received single lower limb traction plus massage and the treatment group received pelvic traction plus massage. Both groups therapy last 5 days, The Japanese orthopaedic association scores (JOA) was evaluated for subjective symptoms, signs, functional activity and bladder function score. The therapeutic effect was evaluated.Results The total effective rate (94.7% vs. 82.1%;χ2=12.160,P=0.007) in the observation group was significantly higher than that in the control group. O, The scores of JOA at one week after treatment (20.2 ± 2.0 vs. 18.3 ± 2.8;t=3.419, P<0.01) and two weeks after treatment (24.4 ± 1. 4vs. 22.6 ± 3.0;t=3.359,P<0.01) in the observation group were significantly higher than those in the control group.Conclusions The single lower limb traction plus massage can improve the clinical symptoms of patients with lumbosacral tunnel syndrome, and be superior to the pelvic traction plus massage.

OBJECTIVE: Investigate common deafness gene mutations in patients with severe and profound non-syndromic hearing loss in Liaoning in order to understand their hereditary etiologies and characteristics at the molecular level. METHOD: Peripheral blood samples were obtained and the DNA templates were extracted from 128 non-syndromic hearing loss patients who are sporadic in clinics. The deafness gene chip was applied to detect hot-spot deafness gene mutations including GJB2, GJB3, SLC26A4 and mitochondrial 12S rRNA. Deafness etiology questionnaires, pure tone audiometry, auditory brainstem response, tympanometry and temporal bone CT were also applied. RESULT: Various types of gene locus mutations were seen in 52 of the 128 patients (40.6%); (1) GJB2 gene mutations (n=22) included c. 235 del C homozygous mutation (n=10), c. 235 del C heterozygous mutation (n=5); c. 176_191 del 16 heterozygous mutation (n=l); c 35 del G heterozygous mutation (n=l); c. 235 del C/c. 299_300 del AT mutation (n=l), c. 235 del C/c. 176_191 del 16 mutation (n=l), c. 35 del G/c. 176_191 del 16 mutation (n=l); c. 299_300 del AT/c. 919-2 A>G mutation (n=l), c. 235 del C/c. 919-2 A>G mutation (n=l). (2) SLC26A4 gene mutations (n=30) included c. 919-2 A>G homozygous mutation (n=6), c. 919-2 A>G heterozygous mutation (n=17), c. 2168 A>G homozygous mutation (n=l), c. 2168 A>G heterozygous mutation (n=2), c. 2168 A>G/c. 919-2 A>G mutation (n=2), c. 919-2 A>G/GJB2 c. 235 del C mutation (n=2); (3) No GJB3 and mitochondrial 12S rRNA mutation. Genetic deafness was confirmed at the gene level in 24 cases (18.8%) and 28 patients (21.9%) were diagnosed as carriers of genetic deafness gene mutations. CONCLUSION Genetic deafness occupies a large population in deaf community in Liaoning. Molecular genetic screening for these mutations and genetic counseling are effective methods to prevent the occurrence of hereditary hearing loss and provide theoretical guidance.
Adolescent ; Child ; Child, Preschool ; China ; Connexins ; DNA Mutational Analysis ; Deafness ; genetics ; Female ; Genetic Testing ; Humans ; Infant ; Male ; Mutation

Aim To explore the effect of meloxicam on the CUMS-induced depressive-like behaviors in rats and its preliminary mechanism. Methods The rats were exposed to CUMS procedure for 6 weeks to estab-lish the model of depression. Meloxicam(1,3 mg· kg-1 ) and sertraline(5 mg·kg-1 ) were administered to rats from 22d of the stress procedure(once a day,for 21 days,p. o. ) . Depressive-like behaviors were evalu-ated by the open-field test and force swimming test. The levels of PGE2 and TNF-αin cortex were measured by ELISA. Moreover, the concentrations of NE, DA, DOPAC and 5-HIAA were also measured by HPLC, and the protein expression of 5-HT1 AR in cortex was analyzed by the immunohistochemistry. Results Com-pared with the rats of normal control group,the vertical and horizontal movement scores of rats in the open-field test were decreased and the immobility time in the forced swimming test was increased in model group. The levels of PGE2 and TNF-α were both increased signifi-cantly,whereas the concentrations of NE, DA, DOPAC and 5-HIAA were decreased and the expression of 5-HT1AR was reduced in cortex. Compared with the rats of model group, meloxicam significantly improved the depressive behaviors of rats in experimental groups and reversed the content of PGE2 ,TNF-α,NE,DA,DOPAC and 5-HIAA, as well as the expression of 5-HT1AR. Conclusion Meloxicam has a significant protective effect on CUMS-induced depressive-like behaviors, and the protective mechanism might be related to atten-uating inflammation response and reconstructing the balance of the monoamine neurotransmitter system in rat cortex.