AIM:To evaluate the clinical effect of traditional Chinese medicine plus laser photocoagulation on eyes which have peripheral retinal hole with shallow detachment.
METHODS: The 227 cases ( 246 eyes ) of retinal hole with shallow detachment were randomly divided into an integrated Chinese and western medicine group and a western medicine group. The former underwent laser photocoagulation combined with oral Chinese medicine;while the latter was treated with laser photocoagulation alone. Analyses of the effect were performed two months after treatment.
RESULTS:The total cure rate of integrated Chinese and western medicine group was 87. 7%, while that of western medicine group was 71. 6%, significant difference was considered between the two groups (P<0. 01).
CONCLUSION: Chinese medicine combined with laser photocoagulation plays an exact role in eyes which have peripheral retinal hole with shallow detachment, especially when the detached range is greater than 1PD, and it is significantly better than western laser therapy.

The design principles of a noninvasive ventilator's turbine are studied and discussed in this paper. The design is completed from its several aspects and in combination of related theories, using SolidWorks tools. Abundant experimental results prove that this design's technical specifications meet all the requirements.
Equipment Design ; Respiration, Artificial ; instrumentation ; methods ; Ventilators, Mechanical

In order to reaction the quality present situation, problems on the current quality of animal sources of drugs are summed up by using test data analysis, literature search and marketing research. This paper can also help the improvement of the quality management, the revision of the relevant department policy system and the improvement of standards.
Animals ; China ; Medicine, Chinese Traditional ; standards ; Pharmaceutical Preparations ; analysis ; standards ; Quality Control

Objective To explore the danger of lead exposure in newborns who accepted the blood stored in blood bank for blood change treatment.Methods The lead level of blood was examined before and after blood change treatment for 37 neonates with hyperbilirubinemia who accepted 53 cases blood stored in blood bank during Jun.to Dec.2006.The level of blood lead was measured by graphite stove atom absorb spectrum method.Results The average lead level of 53 cases blood stored in blood bank was 101.02 ?g/L,which had attained the level of lead poisoning.There were 15 cases(28.5%) whose blood lead levels was very high(≥100 ?g/L),3 cases whose blood lead level ≥200 ?g/L.After blood change treatment,the percentage of the blood lead level ≥100 ?g/L rose from 2.9% to 19.0%.The average level of blood lead after blood change treatment was higher than before(P

ObjectiveTo introduction of perforator flaps,muscle flaps pedicled by descending branch of lateral circumflex femoral artery,method and their clinical application that multiple soft tissue defects of hand are repaire by muliplefoliated tissue flap only branch lateral circumflex femoral artery.MethodsFifteen patients with multiple soft tissue defects of hand were repaired muliplefoliated tissue flap only pedicled bydescending branch lateral circumflex femoral artery.At first,the anterolateral thigh perforator flap was designed and harvested according to the soft tissue defects of hand, then the descending branch lateral circumflex femoral artery was dissected at the same time the segmented perforator flap,fascia lata flap,rectus femoris muscle flap, vastus lateralis muscle flap, vastus intermedius muscle flap and distal spatium intermusculare flap were harvested in need according to distance among soft tissue defects.The muliplefoliated tissue flap was harvested only pedicled by descending branch lateral circumflex femoral artery, at last muscle flaps and fascia lata flaps were covered by skin graft, so the multiple soft tissue defects of hand were repaired in one time.ResultsNo vascular crisis happened. All skin grafts survived well, the contour of all repaired soft tissue defects was good and protective feeling was recovered by skin grafts of all flaps. All cases were got follow-up and the range was from 6 to 20 months(the average was 8.7 months).Wound of donor site healed well, muscle strength of quadriceps and motion of knee were normal. Three cases were excellent,nine cases were well and 3 cases were good, according to upper extremity function evaluation criteria of Chinese Medical Society for the Surgery of the Hand, the rate of good was 80 percent.ConclusionMultiple soft tissue defects of hand can be repaired by muliplefoliated flap only pedicled by descending branch of lateral circumflex femoral artery. Its advantages included reduction of operation time and treatment, good recovery of hand contour and function. It is a good method to repair multiple soft tissue defects of hand.

Objective To investigate the prevalence,genotype and epidemiology of plasmid- mediated AmpC enzyme of Escherichia coli and Klebsiella pneumoniae.Methods A total of 67 clinical isolates of nonrepetitive cefoxitin-resistant Escherichia coli and Klebsiella pneumoniae collected by Fuzhou General Hospital and Fujian Provincial Hospital during a period of Sept.2004 to Mar.2005 were detected by three-dimensional extract test for AmpC enzyme,and PCR for AmpC enzyme and other ?-lactamase gene amplification and DNA sequencing were carried out for genotype of ?-lactamase.Plasmid transformation experiment was used to study the transfer of cefoxitin resistance.The homology of the isolates was determined by ERIC-PCR fingerprinting.Results At two hospitals in Fuzhou,the prevalence of plasmid-mediated AmpC enzyme among cefoxitin-resistant Escherichia coli and Klebsiella pneumoniae were 16.7% and 10.5%, 8.0% and 0,respectively.Two isolates of Klebsiella pneumoniae produced DHA-1 plasmid-mediated AmpC enzyme,and 4 isolates of Escherichia cob and one strain of Escherichia coli produced CMY-2 and CMY-22 plasmid-mediated AmpC enzyme respectively.Furthermore,5 strains of Escherichia coli with CMY AmpC enzyme were also found simuhaneously to produce TEM-144,CTX-M-27,CTX-M-14 and TEM-1 ?-lactamase respectively.Three strains of Escherichia coli and one isolate of Klebsiella pneumoniae could transfer cefoxitin resistance to acceptant bacillus.ERIC-PCR fingerprinting reveals 2 strains of Klebsiella pneumoniae came from same clone,but 5 strains of Escherichia coli came from different clones.Conclusions The clinical isolates of Klebsiella pneumoniae producing DHA-1 plasmid-mediated AmpC enzyme and Escherichia coli producing CMY-2,CMY-22 plasmid-mediated AmpC enzyme are found in Fuzhou.CMY-22 AmpC enzyme and TEM-144 ?-lactamase are the first reported in the world,GenBank accession number: DO256079,DO256080

Objective To study the relationship between Couagen Ⅰ,MMP-2,TIMP-2 gene expression and atrial fibrosis during heart failure(HF)in dog.Methods Fourteen dogs were used and randomized into HF induced by ventricular tachypacing and control group.Burst atrial pacing was used to induce atrial fibrillation(AF).And the mRNA and protein level of collagen Ⅰ,MMP-2 and TIMP-2 were detected by RT-PCR and immunohistochemical technique.Tissue samples were stained with Mallory trichrome.Results Left ventricular ejection fraction (LVEF) decreased from (67.4? 6.0)% to (29.2?7.8)%,the inducible rate of AF(7/7 vs 2/7) and sustained AF(5/7 vs 0/7) increased and duration of AF stabeatrial fibrillation(SAF) [(462.12?181.43)s vs(0.57?0.57) s] prolonged significantly in HF group.Atrial fibrous tissue content and atrial size of HF group were significantly greater than the controls dogs(268.8% in lefe atria and 190.3% in right atria).The mRNA and protein level of collagen Ⅰ(56.2% and 132.2% in lefe atria,37.4% and 78.0% in right atria)and MMP-2 (100.0% and 115.7% in lefe atria,65.7% and 96.8% in right atria) increased evidently in both lefe atria and right atria,TIMP-2 mRNA decreased 46.3% in lefe atria and had no change in right atria and that its protein had no change in both atrium,whereas the ratio of MMP-2/ TIMP-2 of mRNA and protein increased markedly in both lefe atria (285.3% and 148.8%)and right atria (106.1% and 134.7%)of HF group.SAF had a positive correlation with fibrosis and the gene level of collagen Ⅰ in lefe atria,the ratio of MMP-2/TIMP-2 had a positive correlation with fibrosis and collagen Ⅰ gene level in lefe atria during HF.Conclusions The changes of collagen Ⅰ,MMP-2 and TIMP-2 gene expression appear to be a molecular mechanism of AF, and the molecular remodeling of collagen Ⅰ induced by regulation unbalance of MMP-2/TIMP-2 appears to be an important mechanism of atrial fibrosis during HF.

Background It is well known that the diminution of visual acuity appears before notable complications in some high myopic eyes.However,whether the impaired vision is associated with the change of retinal thickness at macula area is still under investigation.Objective This study was to investigate the relationship of macular retinal thickness with the change of visual acuity in high myopic eyes.Methods A consecutive caseobservational study was performed.Two hundred and forty-five eyes of 132 patients with the diopter of-6.00～-20.00 D were enrolled in this study during the January 2011 to January 2012 in Beijing Tongren Eye Center.All of the patients received the measurement of retinal thickness with Fourier Domain Optical Coherence Tomography (FDOCT),and the scan mode was MM6.The eyes were divided into the corrected vision ≥0.9 group and the corrected vision ≤0.8 group.In addition,the eyes were assigned to the non-posterior staphyloma group,posterior staphyloma Ⅰ group (macular symmetry) and posterior staphyloma Ⅱ group (macular gradient).The retinal thicknesses in different quadrants at the macular zone were measured and calculated by OCT software.Results The demography was matched in different groups.Corrected visual acuity was significantly increased in the corrected vision ≥ 0.9 group than that in the corrected vision ≤0.8 group (1.02±0.16 vs.0.62±0.08) (t=3.233,P=0.001).Retinal thickness value at fovea was (256.28±13.19) μm in the corrected vision ≥0.9 group,and that in the corrected vision ≤0.8 group was (231.17 ± 10.96) μm,with a significant difference between the two groups (t =2.134,P =0.031).The corrected visual acuity was 1.00±0.27,0.78±0.21 and 0.90±0.13 in the non-posterior staphyloma group,posterior staphyloma Ⅰ group and posterior staphyloma Ⅱ group,respectively,showing significant difference among the three groups (F=15.760,P=0.015),and the corrected visual acuity of the non-posterior staphyloma group and posterior staphyloma Ⅱ group were significantly higher than that of posterior staphyloma Ⅰ group (q =16.131,P =0.006 ; q =-10.831,P=0.008).A significant difference also was seen in the mean retinal thickness among the three groups (F=2.316,P =0.025).The mean retinal thickness in the posterior staphyloma Ⅰ group was (234.21 ± 15.69) μm,which was significantly smaller than (252.25± 15.31) μm of the posterior staphyloma Ⅱ group (q =12.977,P =0.023).There were no significant difference in the retinal thickness at para-fovea area among the three groups (F=0.318,P =0.078).However,significant difference was found at peri-fovea area in different groups (F=1.925,P =0.013).The mean retinal thicknesses at peri-fovea area was (273.26 ± 16.37) μm in the posterior staphyloma Ⅱ group and was significantly smaller than (289.11 ± 19.30) μm of the posterior staphyloma Ⅰ group and (290.33 ± 17.12) μm of the non-posterior staphyloma group (q =-8.305,P =0.023 ; q =-7.011,P =0.012).Conclusions The retinal thickness at fovea is associated with the corrected visual acuity in high myopic eyes.The thinning of retinal thickness at the vertex of posterior staphyloma is one of causes of visual function impairment.

OBJECTIVETo investigate the effect of 6-gingerol, the main active component of ginger, on hair shaft elongation in vitro and hair growth in vivo.

METHODSFirstly, Hair follicles were co-cultured with 3 different concentration of 6-gingerol for 5 days and hair elongation in three groups was measured. Secondly, The proliferative effect of 6-gingerol on DPCs was measured using MTT assay. Thirdly, the expression of Bcl-2 and Bax in DPCs were measured using Western blotting. In vivo study, the influence of 6-gingerol on hair growth in C57BL/6 rats was measured through topical application of 6-gingerol on the dorsal skin of each animal.

RESULTSThe length of hair shaft in 20 microg/ml 6-Gingerol group (0.50 +/- 0.08 mm) is less than 0 microg/ml (0.66 +/- 0.19) mm and 10 microg/ml (0.64 +/- 0.03) mm 6-Gingerol group (P < 0.05). In cell culture, compared to 0 microg/ml and 5 microg/ml 6-Gingerol, 10 microg/ml 6-Gingerol can significantly inhibited the proliferation of DPCs (P < 0.05). Along with the growth inhibition of DPCs by 6-gingerol, the Bax/Bcl-2 ratio increased obviously. In vivo study, the hair length and density decreased a lot after using 1 mg/ml 6-gingerol.

CONCLUSIONS6-Gingerol can suppress human hair shaft elongation because it has pro-apoptotic effects on DPCs via increasing Bax/Bcl-2 ratio. It might inhibit hair growth by prolonging the telogen stage in vivo.

Animals ; Catechols ; pharmacology ; Cell Culture Techniques ; Cells, Cultured ; Fatty Alcohols ; pharmacology ; Hair ; drug effects ; growth & development ; Hair Follicle ; drug effects ; growth & development ; Humans ; Mice ; Mice, Inbred C57BL ; Plant Extracts ; pharmacology ; Rats ; bcl-2-Associated X Protein ; metabolism

OBJECTIVETo study the characteristics of the strains of Salmonella enterica (S. enterica) serovar Senftenberg lacking Salmonella pathogenicity island 1 (SPI-1).

METHODSA total of 10 strains of S. enterica serovar Senftenberg were isolated from 10 cases of diarrhea patients. Pulsed field gel electrophoresis (PFGE), PCR, sequencing techniques and cell invasion test were adapted to study the molecular types and invasiveness of the genes and cells; and made a comparison between the 10 strains and the strains (C02013) isolated in Shenzhen in 2002.

RESULTSThe 10 Senftenberg isolated (S09007-S09012, S09014-S09017) in Shanghai showed three PFGE patterns, which were significantly different from the strains isolated in Shenzhen. PCR-amplified results indicated the invasion gene (invA), secreted effector protein gene (sipA) and gene fragments as fhlA-hilA, hilA-spaP and spaP-invH in the 10 strains of SPI-1 were all negative. The sequencing results revealed that the 10 strains isolated in Shanghai lacked most parts of SPI-1 genes, as fragments from orgA to invH and parts of orgA gene itself; however, compared with strains isolated in Shenzhen, the sprB-orgC gene existed. The missing parts of genes were replaced by a simple insertion sequence (IS) of 1000 bp in the strains isolated both in Shenzhen in 2002 and in Shanghai in 2006. The invasiveness rates of the 10 strains (S09007-S09012, S09014-S09017) towards Hela cells were (0.0053 ± 0.0024)%, (0.0046 ± 0.0006)%, (0.0047 ± 0.0003)%, (0.0064 ± 0.0012)%, (0.0065 ± 0.0011)%, (0.0070 ± 0.0020)%, (0.0115 ± 0.0030)%, (0.0099 ± 0.0039)%, (0.0180 ± 0.0135)% and (0.0031 ± 0.0012)%, respectively; which were all significantly lower than the rate of invA-positive control strain STM1344 ((5.0800 ± 0.6333)%); lower or close to the rate of invA-lacked artificial-mutated strain STMinvA-((0.0193 ± 0.0045)%).

CONCLUSIONSPI-1 genes are not essential for the diarrhea caused by S. enterica serovar Senftenberg.

Adult ; Aged ; Bacterial Typing Techniques ; Diarrhea ; microbiology ; Feces ; microbiology ; Female ; Genes, Bacterial ; Genomic Islands ; HeLa Cells ; Humans ; Male ; Middle Aged ; Salmonella enterica ; genetics ; isolation & purification ; pathogenicity