Epidemiological characteristics of influenza among the elderlyin Heilongjiang Province / 预防医学

Objective @#To investigate the epidemiological characteristics of influenza among the elderly in Heilongjiang Province from 2017 to 2021 (April 2017 to March 2022), so as to provide insights into influenza control among the elderly.@*Methods @#The data pertaining to surveillance of patients with influenza-like illness (ILI) at ages of 60 years and older in Heilongjiang Province from 2017 to 2021 were retrieved from Chinese Influenza Surveillance Information Management, and the temporal distribution of ILI cases and the results of influenza virus tests were descriptively analyzed. @*Results @#Totally 26 908 ILI cases at ages of 60 years and older were reported in Heilongjiang Province from 2017 to 2021, with an ILI prevalence rate of 0.17%. The prevalence of ILI appeared a tendency towards a rise in Heilongjiang Province from 2017 to 2021 (χ2trend=268.554, P<0.001), and the epidemic peaked in the 3rd to 7th weeks of 2019 and 2020. The overall positive rate of influenza virus was 6.80%, and the positive rate of influenza virus showed a tendency towards a decline from 2017 to 2021 (χ2trend=425.268, P<0.001). Influenza A (H1N1) pdm09 (46.82%) and A (H3N2) (22.79%), as well as influenza B virus lineages B/Victoria (12.11%) and B/Yamagata (18.28%) were predominant types, which changes among the study period. The detection of influenza virus-positive samples peaked from December to March of the next year, and a high positive rate of influenza virus was detected in Hegang (12.35%), Heihe (11.47%) and Daqing cities (11.07%). There was no significant correlation between the prevalence of ILI and the positive rate of influenza virus in Heilongjiang Province from 2017 to 2021 (rs=-0.800, P=0.104).@*Conclusions@# The prevalence of ILI appeared a tendency towards a rise among the elderly at ages of 60 years and older in Heilongjiang Province from 2017 to 2021, and the epidemic peaked in winter and spring. Influenza A (H1N1) pdm09, A (H3N2), B/Victoria, B/Yamagata were alternately prevalent and there was no obvious correlation between ILI prevalence and the positive rate of influenza virus.

A nonobstructive condition: Medial arterial calcification / 中南大学学报(医学版)

Vascular calcification, including intimal and medial calcification, is closely associated with a significant increase in cardiovascular diseases. Although increased understandings were achieved, people still know much more about intimal calcification than medial calcification because the latter doesn't obstruct the arterial lumen, commonly considered as a non-significant finding. We clarified the pathologic characteristic of medial calcification, its difference from intimal calcification, principally focused on its clinical relevance, such as diagnosis, nosogenesis, and hemodynamics. We underline the importance of identifying and distinguishing medial calcification, understanding its effect to local/systematic arterial compliance, and relationship to diabetic neuropathy. Recent studies emphasize do not ignore its predictive role in cardiovascular mortality. It is of great clinical significance to summarize the mechanisms of occurrence, lesion characteristics, diagnostic methods, pathogenic mechanisms, hemodynamic changes, and the distinction as well as association of intimal calcification with intimal calcification.

Progress in the application of patch materials in cardiovascular surgery / 中南大学学报(医学版)

The cardiovascular patch, served as artificial graft materials to replace heart or vascular tissue defect, is still playing a key role in cardiovascular surgeries. The defects of traditional cardiovascular patch materials may determine its unsatisfactory long-term effect or fatal complications after surgery. Recent studies on many new materials (such as tissue engineered materials, three-dimensional printed materials, etc) are being developed. Patch materials have been widely used in clinical procedures of cardiovascular surgeries such as angioplasty, cardiac atrioventricular wall or atrioventricular septum repair, and valve replacement. The clinical demand for better cardiovascular patch materials is still urgent. However, the cardiovascular patch materials need to adapt to normal coagulation mechanism and durability, promote short-term endothelialization after surgery, and inhibit long-term postoperative intimal hyperplasia, its research and development process is relatively complicated. Understanding the characteristics of various cardiovascular patch materials and their application in cardiovascular surgeries is important for the selection of new clinical surgical materials and the development of cardiovascular patch materials.

Carotid endarterectomy combined with vertebral artery transposition treating vertebral artery V1 segment stenosis combined with ipsilateral carotid artery stenosis / 中国胸心血管外科临床杂志

@#Objective    To explore the treatment outcome of carotid endarterectomy combined with vertebral artery transposition in patients with severe stenosis to occlusion of the vertebral artery V1 segment and the ipsilateral carotid artery. Methods    From June 2017 to September 2020, patients with severe stenosis to occlusion of the vertebral artery V1 segment and the ipsilateral carotid artery treated with carotid endarterectomy combined with vertebral artery transposition in Fuwai Hospital were retrospectively analyzed. Results    Finally 12 patients were enrolled, including 10 males and 2 females with an average age of 67.8±6.0 years. Twelve patients were successfully operated and the follow-up time was 1-3 years. The stenosis degree of the V1 segment of the vertebral artery decreased from 83.5%±11.8% to 24.9%±14.3% (P<0.001). The stenosis degree of carotid artery decreased from 85.6%±11.0% to 0% (P<0.001). Postoperative follow-up showed that the symptoms of symptomatic patients before surgery improved. The 1-year and 3-year patency rates were 100.0%, and there were no peripheral nerve injury complications, perioperative deaths or strokes. Conclusion    Carotid endarterectomy combined with vertebral artery transposition can treat ipsilateral carotid artery  stenosis and vertebral artery stenosis at the same time, improve blood supply to the brain, improve patients' symptoms and has high promotion value.

The influence of embodied emotion priming on the attentional bias of individuals with depression tendency / 中华行为医学与脑科学杂志

Objective:To explore the effects of embodied emotion priming on attentional bias of individuals with depression tendency.Methods:From June to December 2018, a total of 91 college students with depression tendency were recruited to participate in the experiment.A 3(embodied emotion priming: positive priming, negative priming and no priming) × 2 (emotional face: happy and sad) mixed design was adopted to measure the attentional bias of individuals with depression tendency using the dot probe paradigm. SPSS 22.0 statistical software was used for repeated measurement analysis of variance.Results:In terms of attentional bias, the interaction effect between embodied emotion priming types and emotional faces was significant ( F(2, 88)=5.97, P=0.004, ηp2=0.119). Further simple effect analysis showed that, under the happy-face condition, participants' attentional bias reaction time(△RT) was significantly higher when primed with embodied positive emotion than those primed with embodied negative emotion((14.30±18.23)ms, (-6.53±38.17)ms, P<0.05). The participants' attentional bias △RT was significantly lower when primed with embodied negative emotion than participants with no priming ((-6.53±38.17)ms, (9.16±30.62)ms, P<0.05). Under the sad-face condition, the participants' attentional bias △RT was significantly higher when primed with embodied negative emotion((28.22±35.33)ms) than participants primed with embodied positive emotion((11.71±29.24)ms, P<0.05) and no priming ((7.63±30.60)ms, P<0.05). Conclusion:Embodied emotion priming can affect the attentional bias of individuals with depression tendency.

Epidemiological characteristics and clinical features of visceral leishmaniasis in 41 children / 中华传染病杂志

Objective:To investigate the epidemiological and clinical characteristics of visceral leishmaniasis (VL) in children, and to analyze the distinguishing features of VL associated hemophagocytic lymphohistiocytosis (HLH), so that to provide reference for the diagnosis and treatment of VL.Methods:Forty-one children with VL admitted to Xi′an Children′s Hospital from July 2012 to June 2021 were enrolled. The clinical data were retrospectively analyzed, including epidemiology, clinical manifestations, laboratory data, diagnostic methods, treatment regimens and outcomes. The patients were divided into VL group and VL+ HLH group according to whether combined with HLH or not, and the clinical characteristics and laboratory findings of the two groups were compared. Two independent samples t test, Mann-Whitney U test and chi-square test were used for statistical analysis. Results:Forty-one children with VL were from different provinces, including Shaanxi Province (70.73%(29/41)), Gansu Province (14.63%(6/41)), Shanxi Province (12.20%(5/41)) and Ningxia Hui Autonomous Region (2.44%(1/41)), and 87.80%(36/41) of them lived in rural areas. The peak age was >1.0 to 3.0 years old (63.41%(26/41)). They were sporadic throughout the year. The main clinical manifestations included fever (97.56%(40/41)), splenomegaly (95.12%(39/41)), lymphadenopathy (82.93%(34/41)) and hepatomegaly (60.98%(25/41)). The numbers of cases that Leishman-Donovan bodies were detected in the first, second and third bone marrow smears were 36, four and one, respectively. Anemia, thrombocytopenia and leukopenia detected by blood routine test were 100.00%(41/41), 78.05%(32/41) and 58.54%(24/41), respectively. There were statistically significant differences in the platelet count, lactate dehydrogenase, alanine aminotransferase, triglycerides, fibrinogen and ferritin between VL group (28 cases) and VL+ HLH group (13 cases) ( t=-2.56, t=2.64, Z=-2.66, t=7.15, t=-5.76 and t=3.86, respectively, all P<0.050). The proportions of hepatomegaly and hemophagocytes found in the bone marrow smears in VL group were both lower than those in VL+ HLH group, and the differences were both statistically significant ( χ2=4.47 and 10.93, respectively, both P<0.050). Twelve cases with VL+ HLH were treated with antimony (for six days) and intravenous immunoglobulin, and the others were treated with antimony only. The cure rates of the patients treated with antimony for one and two courses were 92.68%(38/41) and 4.88%(2/41), respectively. The dose of antimony was increased one third and treatment course was prolonged to eight days in one cured case. After (41.36±31.49) months of follow-up, three cases recurred after five to eight months of cure and all of them were cured after one more course of treatment with antimony. Conclusions:Children with VL are mainly distributed in rural areas. The common clinical manifestations are fever and involvement of reticuloendothelial system, which are not specific. The positive rate of Leishman-Donovan bodies found in bone marrow smears is high, and a few negative cases need repeated bone marrow aspiration. Standardized treatment with antimony for VL in children is effective, and combination therapy with immunoglobulin can be considered if patients with VL associated HLH. Very few cases may recur and antimony is still effective.

Research progress on the relationship between liver cirrhosis and thyroid hormones / 中华肝脏病杂志

There exists a complex relationship between liver and thyroid hormones. Liver plays an important role in the activation, inactivation, transportation, and metabolism of thyroid hormones. At the same time, thyroid hormones also affect hepatocytes activity and liver metabolism, such as lipid and bilirubin metabolism. Importantly, thyroid hormone levels often change abnormally in patients with liver cirrhosis. Therefore, studying the change of thyroid hormone levels in patients with liver cirrhosis has a certain clinical value for assessing the severity, prognosis, diagnosis and treatment. This paper reviews the research progress on the relationship between liver cirrhosis and thyroid hormone.

Clinical characteristics of Wilson's disease with onset of acute liver failure in 19 children / 中华儿科杂志

Objective: To analyze the clinical characteristics of Wilson's disease (WD) with onset of acute liver failure (ALF) in children. Methods: Clinical data of 19 children diagnosed with WD presented with ALF in Xi'an Children's Hospital from January 2016 to April 2021 were retrospectively analyzed, including general condition, clinical manifestation, laboratory examination, and gene detection. The children were divided into the death group and survival group according to the clinical outcome. The children who had hepatic WD with non-ALF onset during the same period were selected as the control. The general conditions and laboratory indexes were compared between death group and survival group, ALF group and non-ALF group. T-test, Mann Whitney U test or χ2 test were used to compare the differences between the two groups. Results: Of the 19 WD children with ALF onset, 10 were females and 9 were males. The age of admission was (10.1±2.6) years and time to onset of first visit was 9 (4, 15) days. Among the WD children with ALF onset, 4 children were lost to follow-up, 5 cases death (death group) and 10 cases survived (survival group). The ceruloplasmin in the death group was higher than that in the survival group (0.078 (0.055, 0.105) vs. 0.033 (0.027, 0.058) g/L, Z=-2.33, P=0.020). There were 95 children who had hepatic WD with non-ALF onset. The WD patients with ALF onset were older at admission (9.9 (8.0, 11.1) vs. 5.4 (3.7, 6.9) years, Z=-5.25, P<0.001), had higher ceruloplasmin (0.060 (0.030, 0.078) vs. 0.024 (0.006, 0.060) g/L, Z=-3.11, P=0.002), 24 h urinary copper (674 (205, 1 803) vs. 149 (108, 206) μg, Z=-4.25, P<0.001), and positive rate of K-F ring [17/19 vs. 7%(7/95), χ2=50.17, P<0.001] while shorter onset time at initial visit (0.3 (0.1, 0.5) vs. 1.0 (0.7, 6.0) months, Z=-4.28, P<0.001). There was no gender difference between the two groups [9/19 vs. 61%(58/95), χ2=1.22, P=0.269]. Of the 19 WD children with ALF onset, 13 had the ATP7B gene tested, and 15 reported variants were detected. The main variations were c.2333G>T (p. Arg778Leu), c.2621C>T (p. Ala874Val) and c.2975C>T (p. Pro992Leu). The allele frequencies were 6/26(23%), 4/26(15%) and 3/26(12%), respectively. Conclusions: Children of WD onset with ALF are school-aged and above. They have an acute onset, a short course of the disease, and poor prognosis. The positive rate of K-F ring, ceruloplasmin and urinary copper are higher than those of the hepatic WD children with non-ALF onset.

Correlation between three-dimensional histogram analysis of dynamic contrast-enhanced MRI and Gleason score in prostate cancer / 中华老年医学杂志

Objective:To investigate the correlation between three-dimensional histogram analysis of dynamic contrast-enhanced magnetic resonance imaging(DCE-MRI)and Gleason score(GS)in prostate cancer(Pca)from two hospital, and its diagnostic efficacy for discriminating low-grade from high-grade Pca.Methods:A total of 102 pathologically confirmed Pca patients in the First Affiliated Hospital of Zhejiang Chinese Medical University and Hangzhou Traditional Chinese Medical Hospital(TCM Hospital)Affiliated to Zhejiang Chinese Medical University from January 2017 to October 2020 were retrospectively analyzed.The quantitative parameters of Pca, including transport constant(K trans), rate constant(K ep), percent volume of the extravascular extracellular space(V e)and fraction of the Intraplasmic contrast volume(V p), were obtained by manually layer by layer delineating of interested regions of all lesions on the original DCE-MRI imaging.Then the three-dimensional histogram analysis of the above parameters were performed to obtain the minimum, maximum, median, mean, area, 10 thpercentile, 25 thpercentile, 75 thpercentile and 90 thpercentile.The correlations between quantitative parameters and GS, and diagnostic efficiencies were analyzed. Results:102 Pca patients were divided into low-grade prostate cancer group(GS≤3+ 4)(n=44)and high-grade Pca group(GS≥4+ 3)(n=58). There were no statistically significant differences in age and location of lesions between the two groups( P>0.05), but there were statistically significant differences in Gleason score, PSA level and lesion diameter between the two groups( U=0.000, 730.000, 711.000, all P<0.05). The median, mean, 10 thpercentile, 25 thpercentile, 75 thpercentile, 90 thpercentile derived from K trans, and K ep(median, mean, 10%, 25%, 75%, 90%)together with maximum of K transand mean for V e were positively correlated with GS( r=0.405 to 0.583, P<0.05), in which mean of K transhad the highest positive correlation( r=0.583, P=0.000). The histogram parameters derived from V pwere negatively correlated with GS( r=-0.301 to 0.341, P<0.05). The area under ROC of 75th percentile derived from K transwas the highest(0.832). When the cut-off value of 75 thpercentile derived from K transwas ≥0.680/min, its Youden index, sensitivity, and specificity were 0.594, 0.776, 0.818, respectively. Conclusions:The three-dimensional histogram of DCE-MRI quantitative parameters has correlation with GS in Pca patients, can be used to discriminate low-grade from high-grade Pca.

Chemical Components and Mechanism of Qiling Wenshen Formula in Treating Polycystic Ovary Syndrome / 中国实验方剂学杂志

ObjectiveTo systematically analyze the chemical components of QiLing Wenshen （QLWS） formula and explore the key active components and mechanism of the formula in the treatment of polycystic ovary syndrome （PCOS）. MethodThe chemical components of QLWS formula were systematically identified by ultra-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry （UPLC-Q-TOF/MSE） combined with comparison with reference substances， literature data， and databases. Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform （TCMSP） and SwissADME were employed to screen the active components for network pharmacological analysis. SwissTargetPrediction， GeneCards， DisGeNET， and DrugBank were used to obtain the potential components and targets of the formula for the treatment of PCOS. The protein-protein interaction （PPI） network was constructed via STRING database for further screening of the core targets. Gene ontology （GO） annotation and Kyoto Encyclopedia of Genes and Genomes （KEGG） pathway enrichment of core targets were carried out with DAVID database. Molecular docking was performed in MOE 2019. ResultA total of 90 components of QLWS formula were identified， and 32 active components and 45 core targets for treating PCOS were obtained. GO annotation obtained 429 terms and KEGG pathway enrichment screened out 110 signaling pathways， mainly involving phosphatidylin-ositol 3-kinase （PI3K）/protein kinase B （Akt） signaling pathway， estrogen signaling pathway， and hypoxia inducible factor-1 （HIF-1） signaling pathway. The molecular docking revealed that key active components in QLWS formula were icariin， salvianolic acid A\B\C， wogonin， magnoflorine， etc.， which may play a role in treating PCOS through regulating mitogen-activated protein kinase 1 （MAPK1）， epidermal growth factor receptor （EGFR）， mitogen-activated protein kinase 3 （MAPK3）， etc. ConclusionThis study preliminarily predicted that several key active components of QLWS formula could treat PCOS via multiple targets and multiple pathways based on UPLC-Q-TOF/MSE and network pharmacology， which could provide ideas and references for the study of pharmacodynamic material basis and mechanism of action of the formula.

Standardized establishment and informationized management of liver cancer biobank / 临床肝胆病杂志

Objective To establish a small liver cancer biobank with a standard operating procedure and the function of informationized management. Methods According to the inclusion and exclusion criteria, blood, tissue, and stool samples were collected from the patients with liver cancer who attended Liver Surgery Center, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, from August 2012 to December 2020 and signed the informed consent. In-and-out-of-storage management was performed based on the standard procedure for whole blood, serum, frozen tissue, paraffin-embedded tissue, and stool samples, and related clinical and follow-up data were collected. The frozen samples of liver cancer tissue and adjacent tissue in different years were randomly selected, and the concentration and completeness of total RNA were examined to ensure the quality of frozen samples stored in the biobank. Results The samples were collected from 4190 liver cancer patients who underwent surgery within a period of 101 natural months, and there were 41718 frozen tissue samples, 18950 paraffin-embedded tissue samples, 24389 whole blood samples, 20060 serum samples, and 5392 stool samples. The liver cancer patients had an age range of 13-88 years, and male patients accounted for 85.1%. The patients with hepatitis B accounted for 83.3%, and those with liver cirrhosis accounted for 73.5%. A standard operating procedure and an electronic data capture system were developed according to the collection, processing, storage, application, and informationized management of samples. Among the 18 frozen tissue samples randomly selected from the biobank, 16 samples had high RNA quality, which could meet the requirements of subsequent experiments. Conclusion A standardized and informationized biobank has been established for liver cancer, which provides high-quality samples for the basic research on liver cancer and helps to explore the research value of samples.

Modified vertebral-carotid transposition treating stenosis at V1 segment of vertebral artery / 中国胸心血管外科临床杂志

@#Objective    To investigate the treatment of modified vertebral-carotid transposition (VCT) in patients with severe stenosis or occlusion at V1 segment of vertebral artery. Methods    A retrospective study of 13 patients with severe stenosis or occlusion at V1 segment of vertebral artery treated by modified VCT in our hospital from October 2016 to December 2018 was done. There were 10 males and 3 females with an average age of 70.5±7.1 years. Results    The operation was successful in this series of patients. The follow-up duration was 1-3 years. The stenosis degree of the V1 segment of the vertebral artery decreased from 86.8%±7.5% to 17.4%±14.5%. All patients achieved remission of symptoms after the surgery. Temporary peripheral nerve injury occurred in 6 patients. Four patients with neurological complications relieved during follow-up. The patency rate was 100.0% at postoperative 1 and 3 years. There was no perioperative death, stroke or re-intervention. Conclusion    Modified VCT can precisely restore the distal blood flow of patients with severe stenosis or occlusion at V1 segment of vertebral artery, and relieve their symptoms.

Analysis of clinical phenotypes and ATP7B gene variants in 75 children patients with Wilson' s disease / 中华医学遗传学杂志

OBJECTIVE@#To analyze the clinical phenotypes and ATP7B gene variants among children patients with Wilson' s disease from Northwestern China.@*METHODS@#The clinical features and variants of the ATP7B gene among 75 children with hepatic Wilson' s disease were retrospectively analyzed.@*RESULTS@#Among the 75 cases, 4 were presymptomatic, 59 had isolated transaminase elevation, 12 had acute and/or chronic liver diseases. Nine children were found to harbor homozygous variants, 64 harbored compound heterozygous variants, and two only had heterozygous variants of the ATP7B gene. In total 49 variants were detected, with common variants including c.2333G>T (p.Arg778Leu), c.2621C>T (p.Ala874Val) and c.2975C>T (Pro992Leu), which yielded allelic frequencies of 28.7%, 12.7% and 9.3%, respectively. Six novel variants were detected, which included c.1908dupC (p.Asn637Glnfs*118), c.4179_4180insC (p.Pro1394Profs*15), c.1604A>G (p.Glu535Gly), c.2278C>T (p.Pro760Ser), c.3008C>A (p.Ala1003Glu) and c.3532A>C (p.Thr1178Pro). Except for c.1604A>G (p.Glu535Gly), the remainder five were all predicted to be likely pathogenic. No significant correlation was found between genotype and phenotype among the patients.@*CONCLUSION@#The common mutation types of the ATP7B gene among patients with hepatic Wilson disease in Northwestern China are c.2333G>T (p.Arg778Leu), c.2621C>T (p.Ala874Val) and c.2975C>T (p.Pro992Leu), there is no significant correlation between their genotypes and phenotypes.

Analysis of the clinical characteristics, long-term prognosis and changes of pulmonary function in children with idiopathic pulmonary fibrosis / 中华实用儿科临床杂志

Objective:To investigate the clinical characteristics, long-term prognosis and changes of pulmonary function in children with idiopathic pulmonary fibrosis (IPF).Methods:The clinical data, long-term prognosis and changes of pulmonary function of children with IPF admitted to the Department of Pediatric Respiratory Center in Children′s Hospital of Chongqing Medical University from January 2008 to December 2018 were retrospectively analyzed.Results:A total of 28 cases were included, with the median age of 3.9 years (range: 0.5 to 15.7 years). Cough (28 cases, 100.0%), tachypnea (25 cases, 89.3%), cyanosis (19 cases, 67.9%), dyspnea (11 cases, 39.3%), Velcho rales (12 cases, 42.9%), inspiratory three concave sign (11 cases, 39.3%), clubbed fingers and toes (6 cases, 21.4%) and diminished breath sounds (5 cases, 17.9%) were main clinical manifestations.Chest high-resolution computed tomography (HRCT) mainly displayed grid shadow, irregular sac-like light-transparent shadow with ho-neycomb changes and dense shadow, partial (7 cases) pulmonary interstitial emphysema/emphysema/pneumomediastinum.Three cases of lung biopsy showed hyperplasia and consolidation of alveolar space and alveolar septal fibrosis, thickening of alveolar wall and coexistence of new and old lesions.In this group, 4 cases did not receive drug therapy due to other reasons (3 cases abandoned therapy, and 1case died of respiratory and circulatory failure during hospitalization). Twenty-four cases were treated with single or combination of oral Prednisone, N-acetylcysteine and Azithromycin.Eleven cases had improved symptoms when discharged, and 13 cases showed no improvement.Twenty-four cases continued to receive oral medication therapy according to the original protocol.Eight cases were followed up for chest HRCT for 3 months to 4 years, the chest HRCT lesions of 7 cases were similar to before, and those of 1 case increased than before.All cases received telephone follow-up for 2 to 7 years; the maximum duration of medication was 4 years.Twelve cases were lost to follow-up, 7 cases had motion limitation, 3 cases died, and 2 cases had no clinical symptom.Three cases were followed up for pulmonary function for 2 to 3 years, among which 2 cases had pulmonary function decreased than before; 1 case had improvements in forced vital capacity as a percentage of the predicted value and peak expiratory flow as a percentage of the predicted value, but decline in forced expiratory volume in the first se-cond as a percentage of the predicted value.Conclusions:The clinical manifestations of children with IPF are lack of specificity.Chest HRCT is of great value in the diagnosis of IPF and preliminary monitoring of the activity of lesion.In the long-term follow-up, some of cases have improvements in symptoms; pulmonary function mostly decreases, but part of indexes can be improved.

Combination of physician modified stent-graft fenestration and in-situ needle fenestration during thoracic endovascular aortic repair / 中华普通外科杂志

Objective:To evaluate the safety and feasibility of the in-situ needle fenestration combined with the in vitro physician modified fenestration technique to reconstruct supra-aortic branches during thoracic endovascular aortic repair (TEVAR) for aortic arch lesions requiring landing at Z0 and Z1.Methods:From Nov 2017 to Dec 2019, eighteen patients who underwent both the in-situ needle fenestration and the in vitro physician modified fenestration techniques to extend the proximal landing zone to Z0 and Z1 during TEVAR were included in our study.Results:Sixteen patients underwent in vitro physician modified fenestration ,two patients underwent in vitro physician modified fenestration to reconstruct both the left common carotid artery and the innominate artery. All eighteen patients received in-situ needle fenestration to preserve the left subclavian artery. Supra aortic branches were preserved in all patients (38/38, 100%). There was no Type Ⅰ endoleak. Type Ⅱ endoleak was found in four paitnets (4/18). Type Ⅲ endoleak occurred in one patient (1/18). Type Ⅳ endoleak in four patients (4/18). Type Ⅲ endoleak needed open aortic arch repair 6 months later. The median follow-up time was 12 months. One (1/18) died in 12 months and the other patients were doing well.Conclusions:The joint application of the in-situ needle fenestration and the in vitro physician modified fenestration to reconstruct supra-aortic branches during TEVAR for aortic arch pathologies requiring landing at Z0 and Z1 was satisfactory.

Endovascular treatment of traumatic thoracic aortic pseudoaneurysm / 中华普通外科杂志

Objective:To investigate the feasibility and safety of endovascular repair for traumatic thoracic aortic pseudoaneurysm.Methods:From Oct 2015 to Oct 2018, the clinical and followup data of 7 patients diagnosed as traumatic thoracic aortic pseudoaneurysm in Fuwai Hospital of Chinese Academy of Medical Sciences were analyzed retrospectively.Results:The patients average age was (51.2±11.0) years old. All patients underwent surgery in the hybrid operating room under general anesthesia. Two did thoracic endovascular aortic repair (TEVAR), three did TEVAR combined with chimney technique to reconstruct the left subclavian artery, and 1 had TEVAR combined with fenestration to reconstruct the left subclavian artery. One did TEVAR with left common carotid artery and left subclavian artery bypass. The mean operative time was (90.1±27.4) min, the mean postoperative hospital stay was (8.9±3.7) d, and the mean postoperative follow-up time was 42.4 months. All the patients received CTA reexamination of the aorta after 1, 6, 12 months and yearly thereafter. TypeⅠendoleak was found in one patient with chimney technique to reconstruct of left subclavian artery after operation. CT showed that the type Ⅰ endoleak disappeared 6 months after operation. There was no death, paraplegia or stroke during the perioperative period and follow-up period, and there was no aortic related reintervention.Conclusion:TEVAR is a safe and effective method for the treatment of traumatic pseudoaneurysm of thoracic aorta, and the early and mid-term results were satisfactory.

Consistency between nasopharyngeal aspirates and bronchoalveolar lavage fluid in pathogen detection in children with pneumonia: an analysis of 533 cases / 中国当代儿科杂志

OBJECTIVES@#To study the consistency between nasopharyngeal aspirates (NPA) and bronchoalveolar lavage fluid (BALF) in pathogen detection in children with pneumonia@*METHODS@#A retrospective analysis was performed on the data of pathogens detected in 533 children with pneumonia from February 2017 to March 2020. The paired McNemar's test was used to compare the difference in pathogen detection between NPA and BALF groups. The @*RESULTS@#NPA had a sensitivity of 28%, a specificity of 74%, a positive predictive value of 14%, and a negative predictive value of 91% in detecting bacteria, and a @*CONCLUSIONS@#There is poor consistency between NPA and BALF in the detection of bacteria and viruses, and clinicians should be cautious in diagnosing lower respiratory tract infection based on bacteria or viruses detected in NPA. There is moderate consistency between NPA and BALF in the detection of

High-throughput sequencing identifies salivary microbiota in Chinese caries-free preschool children with primary dentition / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

OBJECTIVES@#The study aimed at identifying salivary microbiota in caries-free Chinese preschool children using high-throughput sequencing.@*METHODS@#Saliva samples were obtained from 35 caries-free preschool children (18 boys and 17 girls) with primary dentition, and 16S ribosomal DNA (rDNA) V3-V4 hypervariable regions of the microorganisms were analyzed using Illumina MiSeq.@*RESULTS@#At 97% similarity level, all of these reads were clustered into 334 operational taxonomic units (OTUs). Among these, five phyla (Firmicutes, Proteobacteria, Actinobacteria, Bacteroidetes, and Candidate division TM7) and 13 genera (@*CONCLUSIONS@#Our results revealed the diversity and composition of salivary microbiota in caries-free preschool children, with little difference between male and female subjects. Identity of the core microbiome, coupled with prediction of gene function, deepens our understanding of oral microbiota in caries-free populations and provides basic information for associating salivary microecology and oral health.

Association between single nucleotide polymorphisms of tropoelastin gene and aortic dissection / 中南大学学报(医学版)

OBJECTIVES@#To evaluate the relation between single nucleotide polymorphisms (SNPs) of tropoelastin gene and aortic dissection (AD) via identifying SNPs in the tropoelastin gene, and to detect the level of tropoelastin mRNA, elastin and elastic fibers.@*METHODS@#The specimens of the AD group (@*RESULTS@#Seven SNP loci of the tropoelastin gene were detected in these samples. Among them, 5 SNP loci were polymorphic. The frequency of 3 SNP loci[rs2071307 (G/A), rs34945509 (C/T) and rs17855988 (G/C)] was significantly different between the AD group and the control group (all @*CONCLUSIONS@#The polymorphisms of rs2071307 (G/A), rs34945509 (C/T), and rs17855988(G/C) in the tropoelastin gene may eventually affect the synthesis of elastic fibers and they may play an important role in the occurrence of AD.

Effect of captopril pretreatment on the dentin bonding durability of self-etch adhesive / 浙江大学学报·医学版

To investigate the effect of captopril on the dentin bonding durability of self-etch adhesive. Different concentrations of captopril ethanol solutions or captopril ethanol/water solutions were prepared to pretreat dentin as primer for the self-etch adhesives. The surface morphology of the dentin was observed with scanning electron microscopy (SEM). Based on the morphology analysis, the pretreatment condition was selected and two self-etch adhesives were employed to evaluate the improvement effect of the captopril pretreatment on the dentin bonding durability. : SEM showed that the pretreatment of captopril ethanol solutions and captopril ethanol/water solutions were able to remove the smear lay and partially expose collagen matrix. According to the SEM results, the pretreating condition of captopril ethanol/water solution with the pretreating time of was selected for further dentin bonding study. For Clearfil SEBOND system, the immediate bonding strength increased from to  (0.05]. For Clearfil S BOND system, there was no significant difference in the immediate bonding strength between the experimental group [(4.07) MPa] and the control group[(4.11) MPa]. But after one-year aging, the bonding strength of the experimental group was higher than that of the control group <0.05]. : The pretreatment with captopril ethanol/water solution increases the dentin bonding strength of the self-etch adhesive systems and also improves the bonding durability.