7 results on '"Yun, Peng"'
Search Results
2. Cerebral embolic protection during transcatheter aortic valve replacement.
- Author
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ZHANG Shao-peng, BAI Yun-peng, and JIANG Nan
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HEART valve prosthesis implantation ,STROKE ,STRATEGIC planning ,INTRAOPERATIVE care ,PROTECTIVE clothing ,RISK assessment ,PATIENT safety ,DISEASE risk factors - Abstract
After more than 20 years of development, the complications of transcatheter aortic valve replacement (TAVR) have been significantly reduced, but the incidence of stroke has not been significantly reduced. In recent years, a variety of cerebral embolic protection device (CEPD) have been applied in clinical practice, but their effectiveness is still controversial due to the lack of high - quality clinical evidence. This article reviews progress on the risk factors for stroke and the characteristics of intraoperative CEPD in TAVR, so as to provide reference for the selection of TAVR cases and the formulation of cerebral embolic protection strategies. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
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3. Species boundaries and conservation implications of Cinnamomum japonicum, an endangered plant in China.
- Author
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Lin, Han‐Yang, Yang, Yue, Li, Wen‐Hao, Luo, Yu‐Xin, Bai, Xiao‐Hua, Ohi‐Toma, Tetsuo, Kim, Changkyun, Kim, Joo‐Hwan, and Zhao, Yun‐Peng
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ENDANGERED plants ,WILDLIFE conservation ,CINNAMOMUM ,SINGLE nucleotide polymorphisms ,BIOLOGICAL classification ,BIODIVERSITY conservation ,ECOLOGICAL niche - Abstract
Clear species boundaries are crucial for plans and actions on biodiversity conservation. However, morphological similarities among allied species can result in taxonomic difficulties, thus impeding conservation efforts. In China, Cinnamomum japonicumSiebold is a well‐known endangered plant, yet suffers from longstanding taxonomic issues. Here, we explicitly evaluate whether C. japonicum, C. chenii, and C. chekiangense are the same phylogenetic species on the basis of a multi‐individual sampling strategy. We identified three sets of low‐copy orthologous genes from 19 Lauraceae taxa for phylogenetic inferences. Both the concatenation and coalescent‐based phylogenies supported that C. chenii individuals were embedded in the C. japonicum clade, indicating these two taxa are conspecific. Meanwhile, C. chekiangense accessions formed a monophyly which was not sister to C. japonicum. This result, together with the morphological differences that the leaves of C. japonicum are glabrous with a faveolate pattern of venation while those of C. chekiangense have trichomes and inevident lateral veins, led us to consider both as two distinct species. Based on 17 728 neutral single nucleotide polymorphisms (SNPs), the ADMIXTURE analysis suggested that the Chinese C. japonicum populations in Zhoushan Archipelago (=C. chenii) were genetically differentiated from the Japanese and Korean ones. Furthermore, ecological niche modeling predicted that the present distribution area of Chinese C. japonicum is likely to be unsuitable under global warming scenarios. Together with its limited distribution and genetic uniqueness, we recommend that Chinese C. japonicum deserves conservation priorities. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Variations in macrofaunal communities along sand physico-chemical gradient across the intertidal zones on island beaches.
- Author
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Xu, Mingshan, Yang, Xiaodong, Han, Yu, Huang, Junbao, Chen, Zhentao, Liu, Xu, Yun, Peng, Zhang, Guangzhi, and Zeng, Jian
- Subjects
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BEACHES , *INTERTIDAL zonation , *ISLANDS , *SAND , *BIODIVERSITY conservation , *ELECTRIC conductivity , *SPECIES diversity - Abstract
• Sand physico-chemical properties exhibited distinct changes across the intertidal zones on island beaches. • Consistent patterns of variation were observed in macrofaunal diversity and functional groups across the intertidal zones. • Variations in macrofaunal communities on island beaches were primarily influenced by sand moisture, salinity, and nutrition. • Island beaches are not ecological deserts, they require careful protection. Island beaches, once mistakenly considered as 'ecological deserts', are actually unique ecosystems that support abundant macrofaunal communities. However, limited studies have examined the variations and determinants of macrofaunal communities across the intertidal zones on island beaches, which is crucial for shedding light on the underlying ecological processes and enhancing biodiversity conservation efforts. Here, we explored the variations in macrofaunal communities along sand physico-chemical gradient across four intertidal zones on nine representative beaches, within the largest land-bridge archipelago in eastern China. Our findings revealed that species richness, density, and Shannon-Wiener diversity of macrofaunal communities were notably higher in the lower intertidal zones, exhibiting a positive correlation with elevated levels of sand moisture (M), electrical conductivity (EC), available potassium (AK), and grain size (GS). Conversely, macrofaunal Simpson diversity displayed an inverse pattern, with heightened values observed in the vegetation zone. The Saprophagous, Predaceous, and Omnivorous groups of macrofaunal communities demonstrated an increase with higher levels of EC, AK, and M in the lower intertidal zones. Furthermore, Phytophagous group of macrofaunal communities tended to inhabit the vegetation zones characterized by elevated levels of sand total phosphorus (TP), total nitrogen (TN), and organic carbon (OC). Primarily, our findings indicate that sand nutrition, moisture, and salinity play pivotal roles in shaping the variations of macrofaunal communities on island beaches. These insights offer valuable perspectives into the holistic responses of macrofauna on island beaches to changes in sand physico-chemical properties, serving as a crucial theoretical foundation for the assessment, conservation, and restoration of island beaches. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
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5. A multicenter prospective study on the management of hepatoblastoma in children: a report from the Chinese Children's Cancer Group.
- Author
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Tang MJ, Ma XL, He XL, Pan WH, Zhang XH, Jiang SY, Gao J, Li F, Yao W, Gu S, Zhang WL, Zhao Q, Huang SH, Fang YJ, Liu W, Niu HZ, Wang CM, Sun LR, Gao H, Dai YP, Huang SG, Zhong ZY, Wang XG, Li ZR, Yang LC, Wu YM, Wang HM, Sun X, and Yuan XJ
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- Humans, Prospective Studies, Male, Female, China epidemiology, Child, Preschool, Infant, Child, Survival Rate, Risk Factors, Prognosis, East Asian People, Hepatoblastoma therapy, Hepatoblastoma mortality, Liver Neoplasms mortality, Liver Neoplasms therapy
- Abstract
Background: This study aimed to identify survival risk factors in Chinese children with hepatoblastoma (HB) and assess the effectiveness of the new treatment protocol proposed by the Chinese Children's Cancer Group (CCCG) in 2016., Methods: A multicenter, prospective study that included 399 patients with HB from January 2015 to June 2020 was conducted. Patient demographics, treatment protocols, and other related information were collected. Cox regression models and Kaplan-Meier curve methods were used., Results: The 4-year event-free survival (EFS) and overall survival (OS) were 76.9 and 93.5%, respectively. The 4-year EFS rates for the very-low-risk, low-risk, intermediate-risk, and high-risk groups were 100%, 91.6%, 81.7%, and 51.0%, respectively. The 4-year OS was 100%, 97.3%, 94.4%, and 86.8%, respectively. Cox regression analysis found that age, tumor rupture (R +), and extrahepatic tumor extension (E +) were independent prognostic factors. A total of 299 patients had complete remission, and 19 relapsed. Patients with declining alpha-fetoprotein (AFP) > 75% after the first two cycles of neoadjuvant chemotherapy had a better EFS and OS than those ≤ 75%., Conclusions: The survival outcome of HB children has dramatically improved since the implementation of CCCG-HB-2016 therapy. Age ≥ 8 years, R + , and E + were independent risk factors for prognosis. Patients with a declining AFP > 75% after the first two cycles of neoadjuvant chemotherapy had better EFS and OS., (© 2023. The Author(s).)
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- 2024
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6. Initial study and phylogenetic analysis of hard ticks (Acari: Ixodidae) in Nantong, China along the route of avian migration.
- Author
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Yuan JM, Su J, Zhang ZH, Sun B, Jiao XL, Zhang X, Zhai YP, and Chen YJ
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- Animals, China, RNA, Ribosomal genetics, RNA, Ribosomal analysis, Nymph growth & development, Nymph classification, Nymph genetics, Nymph physiology, Arthropod Proteins genetics, Arthropod Proteins analysis, DNA, Ribosomal Spacer analysis, Ixodidae genetics, Ixodidae classification, Ixodidae physiology, Phylogeny, Electron Transport Complex IV genetics, Electron Transport Complex IV analysis, Animal Migration, Birds
- Abstract
The growing concern about migratory birds potentially spreading ticks due to global warming has become a significant issue. The city of Nantong in this study is situated along the East Asia-Australasian Flyway (EAAF), with numerous wetlands serving as roosting sites for migratory birds. We conducted an investigation of hard ticks and determined the phylogenetic characteristics of tick species in this city. We utilized three different genes for our study: the mitochondrial cytochrome oxidase subunit 1 (COX1) gene, the second internal transcribed spacer (ITS2), and the mitochondrial small subunit rRNA (12 S rRNA) gene. The predominant tick species were Haemaphysalis flava (H. flava) and Haemaphysalis longicornis (H. longicornis). Additionally, specimens of Haemaphysalis campanulata (H. campanulata) and Rhipicephalus sanguineus (R. sanguineus) were collected. The H. flava specimens in this study showed a close genetic relationship with those from inland provinces of China, as well as South Korea and Japan. Furthermore, samples of H. longicornis exhibited a close genetic relationship with those from South Korea, Japan, Australia, and the USA, as well as specific provinces in China. Furthermore, R. sanguineus specimens captured in Nantong showed genetic similarities with specimens from Egypt, Nigeria, and Argentina., (© 2024. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
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- 2024
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7. [Research progress on structure and hydrological processes in the karst critical zone of southwest China].
- Author
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Zhang J, Chen HS, Nie YP, Fu ZY, Lian JJ, Wang F, Luo ZD, and Wang KL
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- China, Soil chemistry, Water Movements, Rivers, Groundwater, Conservation of Water Resources methods, Environmental Monitoring, Hydrology, Ecosystem
- Abstract
The southwestern region of China is the largest exposed karst area in the world and serves as an important ecological security barrier for the upstream of Yangtze River and Pearl River. Different from the critical zone of non-karst areas, the epikarst, formed by an interwoven network of denudation pores, is the core area of karst critical zone. Water is the most active component that participates in internal material cycle and energy flow within the critical zone. We reviewed relevant research conducted in the southwestern region from three aspects: the characte-rization of critical zone structure, the hydrological processes of soil-epikarst system, and their model simulations. We further proposed potential research hotpots. The main approach involved multi-scale and multi-method integrated observations, as well as interdisciplinary collaboration. Precisely characterizing the eco-hydrological processes of the vegetation-soil-epikarst coupling system was a new trend in the future research. This review would provide scientific reference for further studies on hydrological processes in critical zones and regional hydrological water resource management in karst areas.
- Published
- 2024
- Full Text
- View/download PDF
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