Objective To assess the value of the additional intercostal arterial embolization in the management of hemoptysis.Methods Sixteen patients with confirmation of intercostal artery possibly contributing to the hemoptysis by angiography were embolized including intercostal arteries and bronchial arteries with silk threads. Results Sixteen patients with hemoptysis were treated by 19 times of embolization involving both intercostal arteries and bronchial arteries in 15 cases and only intercostal artery in 1 case.Hemoptysis was disappeared right after the procedure in 13 cases(81.3%).Recurrance of hemoptysis occurred in 2 patients.The procedure was ineffective in 2 patients.The total effective rate reached 87.5% with no significant complications related to embolization. Conclusion Intercostal artery embolization could be useful for increasing the effective rate and decreasing the recurrence rate in the management of hemoptysis.

Objective To investigate the relationship between X-ray manifestations of breast cancer,pathology and X-ray classification,in order to improve the diagnostic level of breast cancer.Methods X-ray findings of 114 cases of breast cancer were analysed retrospectively.All cases were comfirmed by operation and pathology. Results All cases were divided into five types,including the mass type(34 cases),mass with calcification type(27 cases),calcification type(28 cases),abnormality structure type(21 cases) and latency type(4 cases).Infiltraing duct cancer was a high incidence(61.4%) and the secondary was simple cancer(20.1%).Conclusion breast cancer of the mass type,mass with calcification type and calcification type are characteristic mammographic features.Mammography could get a clear diagnosis.The breast cancer of the abnormality structure type are not characteristic mammographic findings.The imaging diagnostic rate of breast cancer can obviously improve through recognizing its X-ray findings.

Objective To investigate the prevalence of human immunodeficiency virus (HIV) infection and its characteristics among pregnant women in Hunan.Methods Data from information system of prevention of mother-to-child transmission of HIV management in Hunan 2011-2015 was analyzed in the study (3 + 1 mode by year statistics).Results The total HIV-positive infection rate was 0.19‰ among pregnant women from 2011 to 2015 in Hunan.The rate of HIV infection showed upward trend by years (P ＜ 0.05).The proportion of diagnosis of HIV positive cases intrapartum was 44.66％,showed declining trend by years (P ＜ 0.05).The 786 cases of HIV positive pregnant women were mainly the Han's,the age distribution of 20 to 35 years old,90.21％ of them were farmers or unemployed.A percentage (76.84％) of them had junior high school education level or lower 37.91％ of them were found in delivery or postpartum.A percentage (36.51％) of them accepted service in delivery or postpartum.A percentage (45.67％) of them was infected through sexual contact,46.82％ of them were infected by unknown ways.Conclusions The rate of HIV infection among pregnant women was increased by years in Hunan.It is suggested to strengthen health education among high-risk groups and high incidence areas,improve detection rate of early pregnant women,implement the Prevention of Mother to Child Transmission (PMTCT) measures to reduce the rate of mother to child transmission of Acquired Immune Deficiency Syndrome (AIDS).

0.05).However,HCT2s of right side and left side were significantly negatively correlated to age(r=-0.606,-0.522;P=0.000,0.000).Conclusion HCT2s in healthy Chinese aged 10~59 year measured on SE dual echo images are quite stable,and age is an influencing factor of HCT2,but not side,sex and handedness.

PurposeAdrenal schwannoma is rare and quite difficult to diagnose before operation. This paper aims to analyze the CT findings of adrenal schwannoma to improve the recognition and diagnosis of this disease.Materials and Methods The CT findings of 6 patients with adrenal schwannomas proved by operation and pathology were retrospectively analyzed.Results Four schwannomas were located in the right adrenal and 2 in the left adrenal. The tumors, with diameters ranging from 3.0 cm to 6.4 cm, mean (4.5±1.3) cm, had well-defined margin. The densities of all the masses were close to or slightly lower than those of kidneys on plain scan images, with mean CT attenuation value of (32±7) HU. Three masses showed homogeneous density and the other 3 were mildly heterogeneous with patches of lower density. All the 6 schwannomas were enhanced mildly or moderately after intravenous administration of contrast material and showed gradual enhancement mode. They showed mild homogeneous or flocculent enhancement on arterial phase and had gradual progress on venous and delayed phases. The mean increase of CT attenuation value was (13±2) HU on arterial phase, (18±4) HU on venous phase and (23±4) HU on delayed phase. Only 1 mass showed some patches of cystic degeneration without enhancement inside.Conclusion Adrenal schwannoma should be included in the differential diagnosis of solid nonfunctioning adrenal tumors. Features such as relatively homogeneous mass, mild to moderate enhancement and gradual enhancement mode after contrast enhancement are possibly the unique CT manifestations of adrenal schwannoma.

Objective: To clone the Fab gene of a monoclonal antibody (mAb) BDI against human bladder cancer and its expression in E. coli. Methods: Fd and K genes of mAb BDI were cloned by RT-PCR and inserted into an Fab expression vector. Phage displaying Fab and soluble Fab were expressed in E. coli. The N-terminal sequence of VH region was corrected by PCR mediated mutagenesis. The antigen-binding characteristics of the Fab were tested by ELISA and immu-nohistochemistry. Results: Fd and K genes were cloned into the expressing vector p3MH and the phage displaying antibody and soluble Fab were expressed in E. coli, which showed weak binding activity to bladder cancer cells. Correction of the N-terminal sequence of the VHimproved the biding activity dramatically. The feasibility of the application of the Fab in phage antibody library screening was confirmed by a simulated panning procedure. Conclusion: The Fab gene of an anti-human bladder cancer mAb was expressed in E. coli. The importance of the N-terminal sequence on antibody binding activity was suggested.

BACKGROUND:It is wel-known that vitamin E holds antioxidant capacity, but whether other growth factors have the same effect on endplate chondrocytes has not yet been reported. OBJECTIVE:To observe the effect of different growth factors on the antioxidant ability of endplate chondrocytes in the intervertebral disc. METHODS:Endplate chondrocytes were primary cultured, and then divided into four groups, including blank control, serum deprivation, hydrogen peroxide stimulation and hydrogen peroxide stimulation combined with different growth factors groups. The 4th group was subdivided into insulin-like growth factor-1, basic fibroblast growth factor, transforming growth factorβ, forskolin and vitamin E groups. The expression levels of caspase-3, matrix metal oproteinase 13 and 3, inhibitor of metal oproteinase 1 as wel as thrombin 4 and 5 were detected by real-time PCR. Cel apoptosis was analyzed through apoptosis kit and flow cytometry. Cel synthesis and secretion were detected by western blot assay. The total antioxidant capacity and the hydrogen peroxide content were determined by kit, and then statistical y analyzed. RESULTS AND CONCLUSION:Different growth factors had significant differences in the endplate chondrocyte apoptosis, secretion and antioxidant capacity. To conclude, transforming growth factorβand forskolin do further damage to the cel s stimulated by hydrogen peroxide, while insulin-like growth factor-1 and vitamin E expose protective effect on the injured cel s.

Objective To study the long-term efficacy of splenectomy for patients with advanced shistosomiasis japonica.Methods Levels of WBC,RBC,PLT,EOS,ALT,ALP,GGT,A,TB,HA,LN,Ⅳ-C,PCⅢ,IGG,IGA,C3,C4,CD3,CD4,CD8,CD19 in periphetral venous blood were determined in 239 patients with advanced shistosomiasis.Meanwhile,the liver,gallbladder and spleen were examined with ultrasonography.Results The levels of WBC,PLT,EOS,ALT,ALP,IGG,IGA,LN,Ⅳ-C,CD19 increased in splenectomy group,the levels of A,TB,CD3,CD4,C3,C4 decreased in splenectomy group,while RBC,HA,PCⅢ,CD8 were not changed.Conclusion Splenectomy is a danger to hepatic function.Humoral immunity increases while cellular immunity decreases in splenectomy group.Splenectomy may aggravate the hepatic fibrosis in patients with advanced shistosomiasis.

Objective:To build a small-sample ultra-widefield fundus images (UWFI) multi-disease classification artificial intelligence model, and initially explore the ability of artificial intelligence to classify UWFI multi-disease tasks.Methods:A retrospective study. From 2016 to 2021, 1 608 images from 1 123 patients who attended the Eye Center of the Renmin Hospital of Wuhan University and underwent UWFI examination were used for UWFI multi-disease classification artificial intelligence model construction. Among them, 320, 330, 319, 268, and 371 images were used for diabetic retinopathy (DR), retinal vein occlusion (RVO), pathological myopia (PM), retinal detachment (RD), and normal fundus images, respectively. 135 images from 106 patients at the Tianjin Medical University Eye Hospital were used as the external test set. EfficientNet-B7 was selected as the backbone network for classification analysis of the included UWFI images. The performance of the UWFI multi-task classification model was assessed using the receiver operating characteristic curve, area under the curve (AUC), sensitivity, specificity, and accuracy. All data were expressed using numerical values and 95% confidence intervals ( CI). The datasets were trained on the network models ResNet50 and ResNet101 and tested on an external test set to compare and observe the performance of EfficientNet with the 2 models mentioned above. Results:The overall classification accuracy of the UWFI multi-disease classification artificial intelligence model on the internal and external test sets was 92.57% (95% CI 91.13%-92.92%) and 88.89% (95% CI 88.11%-90.02%), respectively. These were 96.62% and 92.59% for normal fundus, 95.95% and 95.56% for DR, 96.62% and 98.52% for RVO, 98.65% and 97.04% for PM, and 97.30% and 94.07% for RD, respectively. The mean AUC on the internal and external test sets was 0.993 and 0.983, respectively, with 0.994 and 0.939 for normal fundus, 0.999 and 0.995 for DR, 0.985 and 1.000 for RVO, 0.991 and 0.993 for PM and 0.995 and 0.990 for RD, respectively. EfficientNet performed better than the ResNet50 and ResNet101 models on both the internal and external test sets. Conclusion:The preliminary UWFI multi-disease classification artificial intelligence model using small samples constructed in this study is able to achieve a high accuracy rate, and the model may have some value in assisting clinical screening and diagnosis.

Objective:To estimate the status of pregnancy complications among women with polycystic ovary syndrome (PCOS) through a systematic review of published literatures.Methods:Systematic literature searches were conducted in PubMed,Web of Science,Medline,Embase,Cochrane Library,China National Knowledge Infrastructure (CNKI),Wanfang,Weipu and China Biology Medicine disc (CBMdisc),as well as the relevant articles published from inception to April 1st 2017,which reported the prevalence of pregnancy complications among women with PCOS.Random effective models were used to calculate pooled prevalence and 95％ confidence intervals.The Newcastle-Ottawa Scale (NOS) was used to evaluate the quality of those included studies.Subgroup analyses were used to evaluate the influence of overweight/obesity and insulin resistance before pregnancy on the estimates of pregnancy complications among women with PCOS.Results:Fifty-nine studies involving 13 378 PCOS women and 49 395 non-PCOS women were included.Among women with PCOS,pooled estimates were 20.26％ for gestational diabetes mellitus,13.94％ for hypertensive disorder ofpregnancy,64.16％ for caesarean section,13.35％ for preterm birth,9.84％ for macrosomia,5.88％ for low birth weight,5.25％ for early gestational age,8.45％ for late gestational age,1.93％ for neonatal malformations,0.88％ for perinatal mortality and 3.71％ for neonatal asphyxia.And the estimates of gestational diabetes mellitus,hypertensive disorder of pregnancy,caesarean section,preterm birth,macrosomia and neonatal asphyxia among women with PCOS were significantly higher than those in women without PCOS (all P＜0.05).Subgroup analysis showed the estimates of gestational diabetes mellitus,macrosomia and late gestational age among PCOS women who were overweight/obesity before pregnancy were significant higher than those among PCOS women with normal BMI (all P＜0.05);and compared to PCOS women without insulin resistance prior to pregnancy,PCOS women with pre-pregnancy insulin resistance were at an increased risk for gestational diabetes mellitus,preterm birth and macrosomia (all P＜0.05).Conclusion:PCOS in pregnancy is associated with high rates of pregnancy complications.It is an important risk factor for pregnancy complications.