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- 저자 : Huasheng Yang (검색결과 3 건)
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Huasheng Qi,Xiaoyong Yang,Sanming Lu,이인성,김영민 한국지질과학협의회 2022 Geosciences Journal Vol.26 No.1
The Xuancheng ore district is a newly discovered ore district within the Middle–Lower Yangtze River Metallogenic Belt (MYRMB) of Eastern China. Here we investigated the major and trace element concentrations of apatite crystallizes in ore-related intrusions from three skarn deposits with distinctive metal endowments in this region to further reveal their implications for petrogenesis, metallogenesis, and potential for polymetallic mineralization. The studied apatite samples identified as fluorapatite, display identical contents of F (2.04–3.25 wt%), whereas distinctive variations of Cl (0.04–1.42 wt%). The different correlations between Sr contents and (La/Yb)N, (La/Sm)N, and (Sm/Yb)N reflect the differentiation process of the magma evolution in the Xuancheng area. Furthermore, the negative Eu/Eu* and Ce/Ce* correlation, and high log fO2 values (–10.02 to –17.40) of apatite studied, further indicate more oxidized and moderate oxidized environments. Apatite chemistry is characterized by LREE enriched patterns and has high (La/Yb)N ratios with a moderate negative Eu anomaly, suggesting that these plutons originated from enriched mantle mixing with various degrees of crustal components. Meanwhile, the visible differences in apatites among skarn Cu fertile, Cu-Mo fertile, and Cu-W fertile plutons were attributed to distinctive source affinities that ultimately control their metal endowments. Also, our study demonstrates that the Cl, F/Cl, and Eu/Eu* ratios in apatite can act as powerful pointers for ore varieties and mineral exploration.
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Huizhi Guo,Huasheng Huang,Yang Shao,Qiuli Qin,De Liang,Shuncong Zhang,Yongchao Tang 대한척추신경외과학회 2021 Neurospine Vol.18 No.4
Objective: Pulmonary cement embolism (PCE) is an underestimated but potentially fatal complication after cement augmentation. Although the treatment and follow-up of PCE have been reported in the literature, the risk factors for PCE are so far less investigated. This study aims to identify the preoperative and intraoperative risk factors for the development of PCE. Methods: A total of 1,373 patients treated with the polymethylmethacrylate (PMMA) augmentation technique were retrospectively included. Patients with PCE were divided into vertebral augmentation group and screw augmentation group. Possible risk factors were collected as follows: age, sex, bone mineral density, body mass index, diagnosis, comorbidity, surgical procedure, type of screw, augmented level, number of augmented vertebrae, fracture severity, presence of intravertebral cleft, cement volume, marked leakage in the paravertebral venous plexus, and periods of surgery. Binary logistic regression analyses were used to analyze independent risk factors for PCE. Results: PCE was identified in 32 patients, with an incidence rate of 2.33% (32 of 1,373). For patients who had undergone vertebral augmentation, marked leakage in the paravertebral venous plexus (odds ratio [OR], 1.2; 95% confidence interval [CI], 0.1–10.3; p=0.000) and previous surgery (OR, 16.1; 95% CI, 4.2–61.0; p=0.007) were independent risk factors for PCE. Regarding patients who had undergone screw augmentation, the marked leakage in the paravertebral venous plexus (OR, 4.2; 95% CI, 0.5–37.3; p=0.004) was the main risk factor. Conclusion: Marked leakage in the paravertebral venous plexus and previous surgery were significant risk factors related to PCE. Paravertebral leakage and operator experience should be concerned when performing PMMA augmentation.
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Lu Wu,Yan Lai,Ying Wang,Lixia Tan,Lizhen Wen,Huasheng Yang 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.4
Hordei Fructus Germinatus (HFG) has been used as a traditional medicine to treat functional dyspepsia (FD) in China. Stir fried HFG (F-HFG) containing Maillard reaction products (MRPs) is used more widely than the raw HFG (R-HFG). However, the exact mechanisms in its functionality remain unclear. This article investigated the effect of R-HFG, F-HFG, and MRPs on brain-gut peptides, gut microbiota, and digestive enzymes using an FD animal mode. After administration of R-HFG, F-HFG, and MRPs, higher mRNA expression level of gastrin (GAS) and lower mRNA expression level of vasoactive intestinal peptide (VIP) were exhibited in F-HFG and MRPs rats than R-HFG rats (P < .05). Furthermore, compared with the R-HFG group, the contents of motilin (MTL) and GAS showed an upward tendency, whereas the contents of VIP and chokcystokinin (CCK) showed a downward tendency in the F-HFG group. In addition, bacterial communities in the control, F-HFG, and MRPs groups clustered closely to one another, and bacterial communities in the model and recovery groups clustered together, whereas the bacterial communities in the R-HFG group were clustered into a category. Moreover, there were no apparent differences in brain-gut peptides and gut microbiota between the F-HFG and MRPs groups. However, after the oral administration of R-HFG, F-HFG, and MRPs, the level of digestive enzyme did not show a significant change as compared with the recovery group. These results indicated that the stronger effect of F-HFG could be attributed to the MRPs produced during stir frying, and MRPs possessed the effect of regulating brain-gut peptides and gut microbiota.
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