Objective:To compare the clinical effects between axillary approach, periareolar approach and inframammary fold approach in breast augmentation.Methods:Two hundred and eleven patients in our department from Jan. 2016 to Jan. 2018 were involved in this study. According to the surgical approach, the patients were divided into the axillary approach group, periareolar approach group and inframammary fold approach group. Postoperative pain, incision scar, drainage fluid and several complications were observed in three groups.Results:Postoperative VAS score of patients in inframammary fold approach and periareolar approach group was lower than that in the axillary approach group ( F=70.93, P<0.05), and postoperative drainage fluid was lower than in the axillary approach group. No diffrences were found in postoperative scar score among the three group ( P>0.05), and the nipple areola sensory disorder in the inframammary fold approach group was less. Conclusions:Breast augmentation of inframammary fold approach has the advantages of relatively hidden incision, short surgical approach, direct vision operation, mild pain, less surgical injury and low postoperative complications. It is worthy of being promoted.

ObjectiveTo investigate the effects of HO-1 on mast cells degranulation during liver ischemia/reperfusion injury.MethodsSD rats ( n =20) were randomly divided into 4 groups : ( 1 ) sham operation group, (2) ischemia/reperfusion injury group (I/RI group), (3) CoPP group, CoPP was given before 24 h(5 mg/kg), (4) ZnPP group, ZnPP was given before 24 h (20 mg/kg). The rat model of liver ischemia/reperfusion was built. Samples were collected after 2 hours reperfusion. HO-1 mRNA expression was assessed by RT-PCR. The expression of HO-1 protein was assessed by Western blot. Serum ALT, AST levels were determined. The amount of degranulated mast cells were detected by toluidine blue staining. Liver injuries were evaluated by HE staining.ResultsCompared to sham group, liver HO-1mRNA and protein expression, ALT, AST levels, the number of degranulated mast cells significantly increased in I/RI group, CoPP group and ZnPP group. Moreover, liver injuries were more serious. Compared to I/RI group, there were increased HO-1mRNA and protein expression, reduced ALT, AST levels and the number of degranulated mast cells, also reduced liver injuries were found in CoPP group. Compared to I/RI group, the expression of HO-ImRNA and protein was down-regulated, ALT, AST levels elevated and the number of degranulatedmastcellsincreasedaccompanyingmoreseriousliverinjuriesinZnPPgroup.ConclusionsHO-1 overexpression reduces liver ischemia/reperfusion injury, possibly by inhibiting mast cells degranulation in liver tissues.

Studies have shown that co-infection of influenza viruses with bacteria is an important cause of high mortality during the epidemic of influenza.There are at least 12 species of bacteria that have been reported to be able to co-infect with influenza.Among those species,co-infection with Staphylococcus aureus is not only the most common but also the most lethal.However,the pathogenesis of high mortality from co-infection with influenza virus/S.aureus remains elusive.In addition,co-infection of influenza virus/S.aureus can induce severe pneumonia.There is new evidence that influenza virus can reduce the host′s tolerance to pathogenic or inflammatory injury,and the two pathogens can also synergistically aggravate toxic effects on the host.Here,we review the mechanisms of severe mortality of influenza infection associated with S.aureus co-infections in order to contribute to prevention and control of influenza in the future.

Objective To screening optimized ultrasound (US)condition for MCF-7 cells and MCF-7/Tax cells,and to investigate the effect of dual-ligands nanoparticles (NPs ) combined with US on overcoming multidrug resistance (MDR).Methods To obtain optimized US condition,cell viability and cellular uptake of NPs treated with MCF-7 cells and MCF-7/Tax cells were detected under different ultrasonic parameters including ultrasound intensity,exposure duration and microbubble concentration. MTT assay was performed to observe the effect of NPs combined with US on cells.Results The optimal US conditions for MCF-7 cells was irradiation intensity 0.6 W/cm2 ,irradiation time 80 s,and the MBs concentration with volume ratio of microbubbles to medium was 1∶1 0;and for MCF-7/Tax cells,irradiation intensity 0.6 W/cm2 ,irradiation time 80 s,and the MBs concentration with volume ratio of microbubbles to medium was 1∶20.Compared with individual NPs,NPs assisted by US exhibited greater killing ability for MCF-7 (IC50 1 .43 ng/ml)and MCF-7/Tax cells (IC50<800 ng/ml).Conclusions US effect could enhance drug sensitivity of the dual-functionized NPs for MCF-7/Tax cells,indicating that US irradiation had potential assisted modality to reverse tumor MDR.

Objective To explore the effect of platelet-rich plasma (PRP) on flap graft survival.Methods Two random skin flaps were elevated on the back of the rabbits with spinal symmetry in fifteen healthy rabbits.We selected randomly one side as PRP side,another side as blank control side.And then the autologous PRP was daubed to the basement of the skin flap in PRP side,while the blank control side was treated with normal saline of the same volume.At 3 d,7 d,and 14 d after the surgical operation,the immunohistochemistry was conducted to detect the microvessel density by CD34,and the the flap graft survival rate was tested and the histological changes of the flaps were observed by HE staining.Results The survival rates of skin flap graft were that the PRP side in 3 d (74.4±4.7) ％,while the control side (65.8+6.8)％;the PRP side in 7 d (72.4±7.5)％,while the control side (58.5+7.0)％；the PRP side in 14 d (74.5±5.0)％,while the control side (65.0±5.4) ％.The inflammatory reaction became declining with the extension of time,while density of blood vessels was increasing.In 14 d inflammatory reaction was the lowest and blood vessels' density was the largest.In all the control sides inflammatory response was obvious than that of the PRP side.CD34 positive count in 3 d PRP side microvascular density (MD) was (13.9±2.0)/HP,controlled side (11.1±1.3)/HP;in 7 d PRP MD was (15.7±1.5)/HP,controlled side (12.1±1.2)/HP;in 14 d PRP MD was (19.6±1.2)/HP,controlled side (12.7±0.8)/HP.There were significant differences in the MD at 3 d,7 d,and 14 d (P＜0.05) between PRP side and control side.Conclusions Platelet-rich plasma is able to promote the survival of random rabbit flap.

Objective To find out about the temperature ,relative humidity, concentration and species of air microbes in the warship , and to detect the possible pathogenic agents responsible for the high incidence of respiratory diseases among the crew.Methods A digital hygrometer was used to measure the indoor tempreture and relative humidity .Open agar set-tling plates were used to sample the air bacteria in the ship .Pure bacterial colonies were isolated from those on the original plates by repeated streak inoculation .The species of bacteria were determined by gram staining ,light microscope observation and 16S rDNA sequencing .Results Spots that met the standard requirement of temperature accounted for 20%but relative humidity was up to the stevrdard ineach place investigated .Although the concentration of airborne microbes was under the standard limit,bacteria were various.There were 18 different bacteria isolated from the air sample , including Chryseobacteri-um jejuense,Acinetobacter baumannii, Bacillus sporothermodurans, Staphylococcus aureus, Staphylococcus capitis, Staphylo-coccus hominis subsp.hominis strain and subsp.novobiosepticus, Staphylococcus cohnii subsp.cohnii and subsp.urealytic-us,Enhydrobacter aerosaccus,Corynebacterium casei,Macrococcus caseolyticus,Corynebacterium ammoniagenes,Brevibacillus panacihumi,Comamonas koreensis,Bacillus subtilis,Sphingobium yanoikuyae, Chryseobacterium hominis.Conclusion The high incidence of respiratory diseases among officers and soliders might be related to the lower tempreture and some airborne bacteria in the warship .

Objective To study the serotype , biochemical characteristics , virulence gene and multilocus sequence typ-ing(MLST) of S.flexneri 4c in Beijing, Shanghai and Shenyang .Methods Seventy-six strains of S.flexneri 4c isolated from stool samples which had been collected from above-mentioned cities of China were identified with Denka Seiken serum and MASF monoclonal serum .Biochemical characteristics of each strain were identified by API 20E test strip and PCR technology was used for detecting 12 pair virulence genes of S.flexneri.MLST was used to analyze the characteristics . Results The serum agglutination antigen structure of S.flexneri 4c was(Ⅳ:7,8).MASF:B+,Ⅳ:Ⅰ+,7 (8) +.S.flexneri 4c developed different results in biochemical reactions and carried different rates of virulence genes , respectively .The IND test positive rate was 17.11%; MEL weakly positive rate was 3.9%, and ARA test weakly positive rate was 22.37%. Virulence genes were carried at a rate of 89.47% -100%, MLST typing was ST245.Conclusion S.flexneri 4c with serum agglutination antigen structure (Ⅳ:7,8) is a new serotype of S.flexneri.The main biochemical reactions are glucose fermentation and mannitol decomposition .A variety of Shigella related virulence genes are carried .MLST generation is consistent,suggesting that the bacteria might have evolved from ST 270 cloning.

Objective To explore the value of small surface coil combined with three-dimensional double-echo steady-state with water excitation (3D-DESS-WE) sequence in displaying mandibular nerves and their branches. Methods The maxillofacial regions of 52 volunteers were scanned unilaterally by a small surface coil combined with 3D-DESS-WE sequence. According to the Gray's anatomy atlas,MPR and CPR was done according to the anatomic position of mandibular nerve and the branches,the signal characteristics of the nerves and neighboring structures were analyzed. The displaying rate of the mandibular nerves and their branches were evaluated.The image quality and display of the nerve were subjectively scored. The signal intensity(SI) of the nerve and adjacent lateral pterygoid muscle were measured. The signal intensity ratio(SIR) of mandibular nerve/lateral pterygoid muscle (SIRN/M) was calculated. Results Compared with the muscles, the nerve showed iso-signal intensity. The subjective scores for all small coil 3D-DESS-WE images were 3.02 ± 0.82. The displaying rates of V3 trunk,anterior trunk,buccal nerve, posterior trunk,inferior alveolar nerve and lingual nerve were all 100%. V3 posterior trunk,inferior alveolar nerve and lingual nerve showed the best quality scores,which were all about 3 points,and the SIRN/M were about 1. The auricular temporal nerve and masseter muscle nerve were also basically satisfied. The displaying rate of mylohyoid muscle nerve,medial pterygoid nerve and lateral pterygoid nerve was low. Conclusion Small surface coil combine with 3D-DESS-WE sequence performed high-quality in mandibular nerves and their branches MR imaging using MPR,CPR post-processing technology,which are suitable for clinical application.

Objective To investigate the effect ofcranioplasty on prognosis of patients accepted intracranial aneurysm clipping combined with simultaneous decompressive craniectomy.Methods One hundred and forty-four patients accepted intracranial aneurysm clipping combined with simultaneous decompressive craniectomy (first-stage operation) in our hospital from January 2013 to June 2017 were chosen;there were 56 patients without cranioplasty in the control group and 88 patients with cranioplasty (second-stage operation) in the observation group.The degrees of coma before first-stage operation were assessed by Glasgow coma scale (GCS).The general state three months after first-stage operation was assessed by GCS and activity of daily living (ADL) scale.The prognoses of these patients 9 and 15 months after first-stage operation were assessed by Glasgow outcome scale (GOS) and ADL scale.The clinical data,prognoses and incidence of hydrocephalus of patients from the two groups were compared.Related factors associated with hydrocephalus were analyzed by multivariate Logistic regression analysis.Results GCS,GOS and ADL scale scores in the observation group 9 and 15 months after first-stage operation were all significantly higher than those in the control group (P＜0.05);incidence of hydrocephalus in the observation group after first-stage operation (31.82％) was significantly lower than that in the control group (62.5％,P＜0.05).Logistic regression model revealed that cranioplasty,Hunt-Hess grading and Fisher grading were independent related factors for incidence of hydrocephalus (P＜0.05);cranioplasty was the protective factor of hydrocephalus (OR=0.126),and Hunt-Hess grading and Fisher grading were the risk factors of hydrocephalus (OR=5.311 and 5.073).Conclusion Cranioplasty can reduce the incidence of hydrocephalus and improve the prognosis of patients accepted intracranial aneurysm clipping combined with simultaneous decompressive craniectomy.

Cough ; diagnosis ; diagnostic imaging ; Dyspnea ; diagnosis ; diagnostic imaging ; Humans ; Male ; Middle Aged ; Radiography