14 results on '"Zhuo Chen"'
Search Results
2. Two new species of Ademula McAtee & Malloch (Hemiptera: Reduviidae: Emesinae) from China with an updated key to the Oriental species.
- Author
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Zhuo Chen, Hu Li, and Wanzhi Cai
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ASSASSIN bugs , *HEMIPTERA , *SPECIES , *BAR codes , *GENETIC barcoding - Abstract
Two new species of the thread-legged bug genus Ademula McAtee & Malloch, 1926 (Hemiptera: Reduviidae: Emesinae: Emesini, formerly Ploiariolini) from China, A. callipennis, new species, and A. corniculata, new species, are described and illustrated in the present paper. COI barcodes of these two new species and an updated key to the Oriental species of Ademula are provided. The distribution of Ademula in East and Southeast Asia is briefly discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. Chenicoris dilatatus, a remarkable new genus and new species of assassin bug (Hemiptera: Heteroptera: Reduviidae: Harpactorinae) from southern China.
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ZHUO CHEN, JIANYUN WANG, HU LI, and WANZHI CAI
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ASSASSIN bugs , *HEMIPTERA , *INSECT anatomy , *SPECIES , *GENITALIA - Abstract
Chenicoris dilatatus gen. n. & sp. n. from southern China is described and placed in the largest assassin bug subfa mily Harpactorinae (Hemiptera: Heteroptera: Reduviidae). The new species is similar to members of Isyndus Stål, 1859 in general habitus, but can be distinguished from the latter by the unarmed anterior pronotal lobe, the laterally dilated lobe-like abdominal segment V and several features of its genitalia. [ABSTRACT FROM AUTHOR]
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- 2020
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4. Short‐term efficacy and long‐term survival of nasopharyngeal carcinoma patients with radiographically visible residual disease following observation or additional intervention: A real‐world study in China.
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Huang, Ying‐Ying, Cao, Xun, Cai, Zhuo‐Chen, Zhou, Jia‐Yu, Guo, Xiang, and Lv, Xing
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NASOPHARYNX cancer , *MAGNETIC resonance imaging , *PROGRESSION-free survival , *MULTIVARIATE analysis , *OVERALL survival - Abstract
Background: To explore the short‐ and long‐term outcomes in patients with nasopharyngeal carcinoma (NPC) with magnetic resonance imaging (MRI)‐detected residual disease at 3 months post‐treatment who received intervention either promptly (0 month) or following observation (after an additional 3 months). Methods: A total of 272 patients with residual disease at 3 months post‐treatment (observation [observation for additional 3 months]: 122, intervention [prompt intervention]: 150) were analyzed. Univariate and multivariate analyses were performed to examine the survival. Adverse events were analyzed in all patients. Results: Patients in the observation group had a lower 3‐year overall survival (77.1% vs. 85.2%), progression‐free survival (10.2% vs. 18.1%), and locoregional relapse‐free survival (10.2% vs. 20.6%) (all p <.05), but not distant metastasis‐free survival (83.8% vs. 78.4%, p =.189), whereas patients in the intervention group achieved higher complete remission (CR) rates (43.3% vs. 21.2%, p =.003). Patients who achieved CR after prompt intervention had a better survival rate than those who achieved observation‐CR or non‐CR (p <.001). Multivariate analyses revealed that a wait‐and‐see policy was an independent prognostic factor for impaired survival (p <.001). No significant differences of acute or late toxicities were observed between the two groups. Conclusions: Patients with NPC with MRI‐detected residual disease 3 months post‐radiotherapy should be encouraged to undergo prompt intervention rather than adopting a passive wait‐and‐see policy. [ABSTRACT FROM AUTHOR]
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- 2022
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5. Spatial variation of output-input elasticities: Evidence from Chinese county-level agricultural production data.
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Seong-Hoon Cho, Zhuo Chen, Yen, Steven T., and English, Burton C.
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AGRICULTURAL productivity , *MATHEMATICAL models of agricultural economics , *GEODATABASES , *GEOGRAPHIC information systems - Abstract
An agricultural production function is estimated using a Chinese county-level dataset along with associated geographic information. County-specific output-input elasticities are computed using the geographically weighted regression (GWR) and mapped with the geographical information system (GIS). A comparison of the ordinary least squares and GWR estimates confirms that allowing spatial variation in the parameters improves model fit of the agricultural production function, and provides valuable insights into the relative importance of inputs in different regions. Moran's indices reveal the spatial dependence of output per unit of land, and four inputs across regions. Mappings of GWR estimates help to detect a few clusters of high output-input elasticities: for labour in the Northeast, North, Southwest and Northwest China, for land in the Central and Southwest, for mechanical power in the North, Northwest and coastal area of the East and South and for fertiliser in the East. The county-specific scale elasticities suggest constant return to scale is likely to hold in the Central, East, Southwest and South. [ABSTRACT FROM AUTHOR]
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- 2007
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6. Integrated Transcriptome and Proteome Analysis Reveals that the Antimicrobial Griseofulvin Targets Didymella segeticola Beta-Tubulin to Control Tea Leaf Spot.
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Hongke Huang, Dongxue Li, Shilong Jiang, Rui Yang, Yuqing Yang, Zhongqiu Xia, Xinyue Jiang, Yongtian Zhao, Delu Wang, Baoan Song, and Zhuo Chen
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PROTEOMICS , *GRISEOFULVIN , *LEAF spots , *PRODUCTION losses , *TRANSCRIPTOMES , *CELL motility - Abstract
Because effective control measures are lacking, tea leaf spot caused by Didymella segeticola results in huge tea (Camellia sinensis) production losses on tea plantations in Guizhou Province, southwestern China. Screening for natural antimicrobial agents with higher control effects against this pathogen and studying their modes of action may contribute to disease management. Here, Penicillium griseofulvum-derived antimicrobial griseofulvin (GSF) can inhibit the hyphal growth of D. segeticola strain GZSQ-4, with a half-maximal effective concentration of 0.37 μg/ml in vitro and a higher curative efficacy at a lower dose of 25 μg/ml for detached tea twigs. GSF induces deformed and slightly curly hyphae with enlarged ends, with protoplasts agglutinated in the hyphae, and higher numbers of hyphal protuberances. GSF alters hyphal morphology and the subcellular structure's order. The integrated transcriptome and proteome data revealed that the transport of materials in cells, cellular movement, and mitosis were modulated by GSF. Molecular docking indicated that beta-tubulin was the most potent target of GSF, with a binding free energy of −13.59 kcal/mol, and microscale thermophoresis indicated that the dissociation constant (Kd) value of GSF binding to beta-tubulin 1, compared with beta-tubulin 2, was significantly lower. Thus, GSF potentially targets beta-tubulin 1 to disturb the chromosomal separation and fungal mitosis, thereby inhibiting hyphal growth. [ABSTRACT FROM AUTHOR]
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- 2023
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7. Genetic evidence that vascular dementia is related to Alzheimer's disease: genetic association between tau polymorphism and vascular dementia in the Chinese population.
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Mei Ning, Zhou Zhang, Zhuo Chen, Teng Zhao, Di Zhang, Daizhan Zhou, Weidong Li, Yun Liu, Yifeng Yang, Sheng Li, and Lin He
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GENETICS of Alzheimer's disease , *DEMENTIA , *CHI-squared test , *FISHER exact test , *GENE expression , *GENES , *GENETIC polymorphisms , *MAGNETIC resonance imaging , *RESEARCH funding , *LOGISTIC regression analysis , *GENETICS - Abstract
A letter to the editor is presented which discusses a research regarding the relationship between vascular dementia (VaD) and Alzheimer's disease in Chinese population.
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- 2011
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8. Integrated mRNA and Small RNA Sequencing for Analyzing Tea Leaf Spot Pathogen Lasiodiplodia theobromae, Under In Vitro Conditions and the Course of Infection.
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Silong Jiang, Qiaoxiu Yin, Dongxue Li, Xian Wu, Yong Wang, Delu Wang, and Zhuo Chen
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NON-coding RNA , *BOTRYODIPLODIA theobromae , *RNA sequencing , *LEAF spots , *TEA plantations , *PHYTOPATHOGENIC fungi - Abstract
Lasiodiplodia theobromae is a phytopathogenic fungus, which can cause many different diseases on different crops. The pathogen can cause leaf spot on tea plants (Camellia sinensis), which negatively affects the productivity and quality of tea leaves in tea plantations in Guizhou Province, China. Although the genome sequence of L. theobromae has been published, no data on the transcriptome or small RNA sequences of L. theobromae under in vitro conditions and the course of infection of tea leaf are available. Here, we report the high-quality transcriptome and small RNA sequences of L. theobromae in vitro conditions and the course of infection of tea leaf using the platform of Illumina HiSeq. This comprehensive expression profiling of the fungal pathogen will provide a valuable resource for future research on trait-specific genes of the pathogen, host-pathogen interactions, and disease resistance in the host. [ABSTRACT FROM AUTHOR]
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- 2021
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9. Cytogenetic characteristics of 665 patients with myelodysplastic syndrome in China: A single-center report.
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XUEYING WANG, WEIYI LIU, MINGJING WANG, TENG FAN, YUMENG LI, XIAOQING GUO, XIUPENG YANG, HONGZHI WANG, HAIYAN XIAO, SHANSHAN ZHANG, RICHENG QUAN, CHI LIU, XUDONG TANG, YAN LV, ZHUO CHEN, LIU LI, YONGGANG XU, ROU MA, and XIAOMEI HU
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MYELODYSPLASTIC syndromes , *OLDER patients , *KARYOTYPES , *CHINESE people , *TRISOMY - Abstract
The karyotype is highly important for diagnosis and prognosis in myelodysplastic syndrome (MDS). The objective of the present study was to investigate the cytogenetic characteristics of patients with MDS in China. The karyotypes of 665 Chinese patients with MDS were analyzed, and it was identified that 298 cases (298/665, 44.8%) had abnormal karyotypes. Among the 298 patients with abnormal karyotypes, the 75 patients with trisomy 8 (+8) constituted the most common subset (75/298, 25.2%). The incidence of abnormal karyotypes was significantly higher in patients who were ≥51 years old compared with those <51 years old, (54.8 vs. 34.7%, respectively; P<0.05). Based on World Health Organization (WHO) classification-based Prognostic Scoring System (WPSS) criteria, the incidence of poor-prognosis karyotypes was significantly higher (17.4 vs. 5.4%; P<0.05) in the older patient group, and based on the Revised International Prognostic Scoring System (IPSS-R) criteria, the incidence of poor-/very poor-prognosis karyotypes was also significantly higher (17.4 vs. 6.6%; P<0.05) in patients ≥51 years old compared with younger ones. Based on the WHO classification of MDS subtypes, the incidence of abnormal karyotypes in patients with high percentages of bone marrow (BM) blasts [excess blasts (EB)-I + EB-II, ≥5% blasts] was significantly higher than that in patients with low percentages of BM blasts (those with single lineage dysplasia + multilineage dysplasia, <5% blasts) (62.5 vs. 36.0%; P<0.05). The incidence of poor-prognosis karyotypes based on WPSS criteria was significantly higher in patients with high percentages of BM blasts than those with low percentages (22.0 vs. 6.9%, respectively; P<0.05), and the incidence of poor-/very poor-prognosis karyotypes based on IPSS-R criteria was also significantly higher (23.0 vs. 7.4%, respectively; P<0.05). These results demonstrate that +8 is the most common abnormal karyotype in Chinese patients with MDS. Age and the percentage of BM blasts are associated with the incidence of both abnormal karyotypes and karyotypes with poor prognosis. The results of cytogenetic abnormalities in this study will supplement the data on patients of MDS in China. [ABSTRACT FROM AUTHOR]
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- 2021
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10. Diseases of Cymbopogon citratus (Poaceae) in China: Curvularia nanningensis sp. nov.
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Qian Zhang, Zai-Fu Yang, Wei Cheng, Wijayawardene, Nalin N., Hyde, Kevin D., Zhuo Chen, and Yong Wang
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LEMONGRASS , *GRASSES , *PLANT diseases , *CYMBOPOGON , *SPECIES , *CURVULARIA - Abstract
Five Curvularia strains isolated from diseased leaves of lemongrass (Cymbopogon citratus) in Guangxi Province, China, were examined. NCBI-Blast searches of ITS sequences suggested a high degree of similarity (99-100%) to Curvularia akaii, C. akaiiensis, C. bothriochloae, C. heteropogonis and C. sichuanensis. To accurately identify these strains, we further analysed their morphology and phylogenetic relationships based on combinations of ITS, GAPDH, and tef1 gene sequences. Morphological observations indicated that the key character differing from similar species was conidial size, whereas phylogenetic analyses indicated that the five strains represent one species that is also distinct from C. akaii, C. akaiiensis and C. bothriochloae by conidial size and conidiophore length. Thus, the strains examined are found to represent a new species described herein as Curvularia nanningensis. The pathogenicity test on the host and detached leaves confirmed the new species to be pathogenic on Cymbopogon citratus leaves. Standardised requirements for reliable identification of Curvularia pathogens are also proposed. [ABSTRACT FROM AUTHOR]
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- 2020
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11. Whole Genome Sequences of the Tea Leaf Spot Pathogen Didymella segeticola.
- Author
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Yafeng Ren, Dongxue Li, Xiaozhen Zhao, Yong Wang, Xingtao Bao, Xue Wang, Xian Wu, Delu Wang, Baoan Song, and Zhuo Chen
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LEAF spots , *NUCLEOTIDE sequencing , *TEA , *GENE ontology , *PATHOGENIC microorganisms , *LIFE sciences - Abstract
The fungal pathogen Didymella segeticola (basionym Phoma segeticola) causes leaf spot on tea (Camellia sinensis), which leads to a loss in tea leaf production in Guizhou Province, China. D. segeticola isolate GZSQ-4 was sequenced using lllumina HiSeq and Pacific Biosciences (PacBio) RS technologies, and then assembled to approximately 33.4 Mbp with a scaffold N50 value of approximately 2.3 Mbp. In total, 10,893 genes were predicted using the Nonredundant, Gene Ontology, Clusters of Orthologous Groups, Kyoto Encyclopedia of Genes and Genomes, and SWISS-PROT databases. The whole-genome sequence of D. segeticola will provide a resource for future research on host-pathogen interactions, determination of trait-specific genes, pathogen evolution, and plant-host adaptation mechanisms. [ABSTRACT FROM AUTHOR]
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- 2019
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12. The Development and Application of a Dot-ELISA Assay for Diagnosis of Southern Rice Black-Streaked Dwarf Disease in the Field.
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Zhenchao Wang, Dandan Yu, Xiangyang Li, Mengjiao Zeng, Zhuo Chen, Liang Bi, Jiaju Liu, Linhong Jin, Deyu Hu, Song Yang, and Baoan Song
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RICE diseases & pests , *AGRICULTURAL pests , *CROP losses , *POLYMERASE chain reaction , *CELL membranes - Abstract
Outbreaks of the southern rice black-streaked dwarf virus (SRBSDV) have caused significant crop losses in southern China in recent years, especially in 2010. There are no effective, quick and practicable methods for the diagnosis of rice dwarf disease that can be used in the field. Traditional reverse transcription-polymerase chain reaction (RT-PCR) methodology is accurate but requires expensive reagents and instruments, as well as complex procedures that limit its applicability for field tests. To develop a sensitive and reliable assay for routine laboratory diagnosis, a rapid dot enzyme-linked immunosorbent assay (dot-ELISA) method was developed for testing rice plants infected by SRBSDV. Based on anti-SRBSDV rabbit antiserum, this new dot-ELISA was highly reliable, sensitive and specific toward SRBSDV. The accuracy of two blotting media, polyvinylidene fluoride membrane (PVDF membrane) and nitrocellulose filter membrane (NC membrane), was compared. In order to facilitate the on-site diagnosis, three county laboratories were established in Shidian (Yunnan province), Jianghua (Hunan Province) and Libo (Guizhou province). Suspected rice cases from Shidian, Yuanjiang and Malipo in Yunnan province were tested and some determined to be positive for SRBSDV by the dot-ELISA and confirmed by the One Step RT-PCR method. To date, hundreds of suspected rice samples collected from 61 districts in southwestern China have been tested, among which 55 districts were found to have rice crops infected by SRBSDV. Furthermore, the test results in the county laboratories showed that Libo, Dehong (suspected samples were sent to Shidian) and Jianghua were experiencing a current SRBSDV outbreak. [ABSTRACT FROM AUTHOR]
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- 2012
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13. Association between ESR1 and ESR2 gene polymorphisms and hyperlipidemia in Chinese Han postmenopausal women.
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Teng Zhao, Di Zhang, Yun Liu, Daizhan Zhou, Zhuo Chen, Yifeng Yang, Sheng Li, Lan Yu, Zuofeng Zhang, Guoyin Feng, Lin He, and He Xu
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ESTROGEN receptors , *ESTROGEN , *CARDIOVASCULAR diseases , *GENETIC polymorphisms , *HYPERLIPIDEMIA - Abstract
Estrogen was considered to be an important protective factor for cardiovascular diseases in women. Genetic association studies suggested that variations of ESR1and ESR2 genes might have a potential role in lipid profile. Our study aimed to investigate the association of single-nucleotide polymorphisms (SNPs) of ESR1 and ESR2 with hyperlipidemia in Chinese Han postmenopausal women. A total of 443 postmenopausal women aged between 55 and 71 years were recruited from Shanghai, China for a case–control study (154 women with hyperlipidemia and 289 controls). We measured plasma estradiol concentration, glucose and lipid profile levels, evaluated their lifestyle and sequenced four SNPs, namely PvuII (rs2234693) and XbaI (rs9340799) of ESR1 and 1082A>G (rs1256049) and 1730A>G (rs4986938) of ESR2. PvuII (rs2234693) and XbaI (rs9340799) showed significantly different distributions between cases and controls (P=0.002 and P=0.023, respectively). In addition, haplotypes constructed from PvuII–XbaI were also associated with hyperlipidemia (global P=0.012). Haplotypes T–A (P=0.005, odds ratio (OR) 1.52, 95% confidence interval (95% CI): 1.13–2.05) and C–G (P=0.010, OR 0.62, 95% CI: 0.43–0.89) had susceptible and protective effects, respectively. 1082A>G (rs1256049) and 1730A>G (rs4986938) showed no statistical association with hyperlipidemia. In conclusion, our results suggested that ESR1 might have a potential role in hyperlipidemia risk, independent of age, estradiol level, body mass index and lifestyle in Chinese Han postmenopausal women. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
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14. Positive association between the PDLIM5 gene and bipolar disorder in the Chinese Han population.
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Teng Zhao, Yun Liu, Peng Wang, Sheng Li, Daizhan Zhou, Di Zhang, Zhuo Chen, Ting Wang, He Xu, Guoyin Feng, Lin He, and Lan Yu
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BIPOLAR disorder , *BRAIN diseases , *GENETIC polymorphisms - Abstract
Background: Bipolar disorder is a widespread and severe brain disorder that is strongly affected by genetic factors. The PDZ and LIM domain 5 (PDLIM5) gene encodes a protein as an Enigma homologue LIM domain protein, which has been widely reported as being expressed in various brain regions. The analysis of DNA microarrays in the frontal lobes of patients with bipolar disorder has indicated changes in the expression level of PDLIM5, and subsequent studies have suggested that PDLIM5 might play a role in susceptibility to bipolar disorder. We sought to examine the association between PDLIM5 and bipolar disorder. Methods: We recruited 502 patients with bipolar disorder and 507 controls from Anhui Province, China. We conducted a case-control study of 4 single-nucleotide polymorphisms (SNPs) of PDLIM5 that have been reported to be significantly associated with bipolar disorder in the Japanese and Chinese population: rs10008257, rs2433320, rs2433322 and rs2438146. Results: We found that rs2433322 showed significantly different frequencies between patients and controls (p = 0.002). Three of the SNPs, rs10008257, rs2433320 and rs2438146, showed no statistical association with bipolar disorder; however, haplotypes constructed from 3 SNPs, rs2433320, rs2433322 and rs2438146, were significantly associated with bipolar disorder (global p = 0.004 after Bonferroni correction). Limitations: Our genetic association study only offered evidence for susceptibility of PDLIM5 to bipolar disorder, but the positive SNP rs2433322 could not indicate a direct cause of this complicated brain disorder. In addition, the 4 tagged SNPs that we selected could not cover the whole region of PDLIM5, thus additional reproducible studies of more SNPS in large non-Asian populations are needed. Conclusion: Our results suggest that PDLIM5 might play a role in susceptibility to bipolar disorder among the Chinese Han population. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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