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  1. Article: First Report of Black Spot Caused by Colletotrichum gloeosporioides on Paper Mulberry in China.

    Yan, J / Wu, P S / Du, H Z / Zhang, Q E

    Plant disease

    2019  Volume 95, Issue 7, Page(s) 880

    Abstract: Paper mulberry, Broussonetia papyrifera (L.) Venten. (family Moraceae), is a fast-growing tree with luxuriant branches and leaves. Because of strong adaptability and tolerance to unfavorable environmental conditions, it is an important tree species for ... ...

    Abstract Paper mulberry, Broussonetia papyrifera (L.) Venten. (family Moraceae), is a fast-growing tree with luxuriant branches and leaves. Because of strong adaptability and tolerance to unfavorable environmental conditions, it is an important tree species for shade or shelter and reforestation in mined areas and on hillsides. During the summer of 2010, brown-to-black spots were observed on leaves of paper mulberry in Baiwangshan Forest Park in Beijing, China. Early symptoms were round or elliptic, light brown, small lesions that later extended to round or irregular spots (4 to 6 × 4 to 8 mm) that were dark brown or black in the center with brown or light brown margins. Several dozen spots were found on severely infected leaves. Leaf tissues (2 × 2 mm), cut from the margins of lesions, were surface disinfected in 0.5% NaOCl solution for 3 min, rinsed three times with sterile water, plated on potato dextrose agar (PDA) and incubated at 25°C with a 12-h light and 12-h dark period. Numerous waxy subepidermal acervuli with setae were observed after 3 days. Acervuli were brown or black, round or elongate, and 100 to 250 μm in diameter. Setae were dark brown, erect straight or slightly curved, and 60 to 74 × 4 to 8 μm with one to two septa. Conidiophores were hyaline or light brown, short with no branches, and cylindrical with dimensions of 12 to 21 × 4 to 5 μm. Conidia were 11 to 21 × 3 to 6 μm, hyaline, aseptate, and cylindrical. Mycelia on PDA were off white-to-dark gray on the reverse side of the colony. Six isolates (BP21-1 to BP21-6) were obtained from different infected leaves and identified as Colletotrichum gloeosporioides (Penz.) Penz. & Sacc. (teleomorph Glomerella cingulata (Stonem.) Spaulding & Schrenk) on the basis of reverse colony color, dimensions and colors of acervuli, conidiophores, and conidia (3). ITS1-5.8S-ITS2 rDNA sequence analysis was performed on all six isolates. The resultant sequences were identical (GenBank Accession No. HQ 654780) and revealed 99% similarity (100% coverage) with C. gloeosporioides isolates in the GenBank (Accession Nos. EU371022.1 and AY376532.1) (2). Pathogenicity was demonstrated using six potted 3-month-old paper mulberry trees. Isolate BP21-2 was grown on PDA for 14 days and conidia were harvested to prepare a suspension of 10
    Language English
    Publishing date 2019-02-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 754182-x
    ISSN 0191-2917
    ISSN 0191-2917
    DOI 10.1094/PDIS-03-11-0186
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Worldwide prevalence of suicidal ideation and suicide plan among people with schizophrenia: a meta-analysis and systematic review of epidemiological surveys.

    Bai, W / Liu, Z H / Jiang, Y Y / Zhang, Q E / Rao, W W / Cheung, T / Hall, B J / Xiang, Y T

    Translational psychiatry

    2021  Volume 11, Issue 1, Page(s) 552

    Abstract: Schizophrenia is a severe psychiatric disorder with high premature mortality rates. This is a meta-analysis and systematic review of the prevalence of suicidal ideation (SI) and suicide plan (SP) among people with schizophrenia. PubMed, Web of Science, ... ...

    Abstract Schizophrenia is a severe psychiatric disorder with high premature mortality rates. This is a meta-analysis and systematic review of the prevalence of suicidal ideation (SI) and suicide plan (SP) among people with schizophrenia. PubMed, Web of Science, Embase, and PsycINFO were systematically searched from their respective inception to October 10, 2020. Data on prevalence of SI and/or SP were synthesized using the random effects model. Twenty-six studies covering 5079 people with schizophrenia were included for meta-analysis. The lifetime and point prevalence of SI were 34.5% (95% CI: 28.2-40.9%), and 29.9% (95% CI: 24.2-35.6%), respectively. The lifetime prevalence of SP was 44.3% and the point prevalence of SP ranged between 6.4 and 13%. Subgroup and meta-regression analyses revealed that source of patients, survey countries, and sample size were significantly associated with the point prevalence of SI, while male proportion and quality assessment scores were significantly associated with the lifetime and point prevalence of SI. Survey time and mean age were significantly associated with lifetime prevalence of SI. Both SI and SP are common in people living with schizophrenia, especially in males and inpatients. Routine screening and effective interventions for SI and SP should be implemented in this population.
    MeSH term(s) Humans ; Male ; Prevalence ; Schizophrenia/epidemiology ; Suicidal Ideation ; Suicide, Attempted ; Surveys and Questionnaires
    Language English
    Publishing date 2021-10-29
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Research Support, Non-U.S. Gov't ; Review ; Systematic Review
    ZDB-ID 2609311-X
    ISSN 2158-3188 ; 2158-3188
    ISSN (online) 2158-3188
    ISSN 2158-3188
    DOI 10.1038/s41398-021-01671-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: First Report of Cochliobolus sativus Causing Leaf Spot on Paper Mulberry in China.

    Wu, P S / Chen, K / Du, H Z / Yan, J / Zhang, Q E

    Plant disease

    2019  Volume 95, Issue 12, Page(s) 1586

    Abstract: Paper mulberry, Broussonetia papyrifera (L.) Vent., is a highly adaptable, fast-growing tree that is native to eastern Asia. Its ability to absorb pollutants makes it ideal for ornamental landscapes, especially in industrial and mining areas. During the ... ...

    Abstract Paper mulberry, Broussonetia papyrifera (L.) Vent., is a highly adaptable, fast-growing tree that is native to eastern Asia. Its ability to absorb pollutants makes it ideal for ornamental landscapes, especially in industrial and mining areas. During the summer of 2010, brown lesions were observed on leaves of paper mulberry in Baiwangshan Forest Park, Beijing, China. These lesions were ovoid to fusiform and 4 to 9 × 2 to 4 mm with dark brown centers and light brown irregular edges. Spots on severely infected leaves sometimes coalesced to form long stripes with gray centers. To isolate the causal agent of the lesions, 4-mm2 pieces of diseased leaf tissue from 12 leaves were collected at the lesion margins and surface disinfected in 0.5% NaOCl for 3 min, rinsed three times with sterile water, plated on water agar, and incubated at 25°C with a 12-h photoperiod. After 5 days, the cultures, which became dark brown to black, were observed. Conidiophores (120 to 220 × 4 to 7 μm) were solitary or in groups of two to five, straight or flexuous with swollen bases, and light or dark brown. Conidia were dark olive brown, spindle- or oval-shaped with truncated ends (60 to 120 × 15 to 30 μm), slightly curved, and containing 3 to 12 distoseptate (mostly 6 to 10). Pseudothecia, produced after 14 days in culture, were dark brown to black and flask shaped (420 to 530 μm in diameter with 85 to 100 × 75 to 90 μm ostiolar beaks). Asci were cylindrical (100 to 220 × 30 to 40 μm) and contained eight ascospores. Ascospores were filiform, (150 to 360 × 6 to 9 μm), hyaline, with 6 to 11 septations. Isolates were identified as Cochliobolus sativus (Ito & Kurib.) Drechsler & Dastur (anamorph Bipolaris sorokiniana (Sacc. & Sorok.) Shoem.) on the basis of culture color and dimensions and colors of pseudothecia, asci, ascospores, conidiophores, and conidia (2,3). The identity of one isolate was confirmed by ITS1-5.8S-ITS2 rDNA sequence (GenBank Accession No. HQ 654781) analysis that showed 100% homology to C. sativus listed in Berbee et al. (1). Koch's postulates were performed with six potted 3-month-old paper mulberry plants. An isolate was grown on potato dextrose agar for 14 days to obtain conidia for a conidial suspension (3 × 10
    Language English
    Publishing date 2019-02-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 754182-x
    ISSN 0191-2917
    ISSN 0191-2917
    DOI 10.1094/PDIS-04-11-0319
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: N-acetylcysteine for major mental disorders: a systematic review and meta-analysis of randomized controlled trials.

    Zheng, W / Zhang, Q-E / Cai, D-B / Yang, X-H / Qiu, Y / Ungvari, G S / Ng, C H / Berk, M / Ning, Y-P / Xiang, Y-T

    Acta psychiatrica Scandinavica

    2018  Volume 137, Issue 5, Page(s) 391–400

    Abstract: Objective: This systematic review and meta-analysis of randomized controlled trials (RCTs) examined the efficacy and safety of adjunctive N-acetylcysteine (NAC), an antioxidant drug, in treating major depressive disorder (MDD), bipolar disorder, and ... ...

    Abstract Objective: This systematic review and meta-analysis of randomized controlled trials (RCTs) examined the efficacy and safety of adjunctive N-acetylcysteine (NAC), an antioxidant drug, in treating major depressive disorder (MDD), bipolar disorder, and schizophrenia.
    Methods: The PubMed, Cochrane Library, PsycINFO, CNKI, CBM, and WanFang databases were independently searched and screened by two researchers. Standardized mean differences (SMDs), risk ratios, and their 95% confidence intervals (CIs) were computed.
    Results: Six RCTs (n = 701) of NAC for schizophrenia (three RCTs, n = 307), bipolar disorder (two RCTs, n = 125), and MDD (one RCT, n = 269) were identified and analyzed as separate groups. Adjunctive NAC significantly improved total psychopathology (SMD = -0.74, 95% CI: -1.43, -0.06; I
    Conclusions: Adjunctive NAC appears to be a safe treatment that has efficacy for schizophrenia, but not for bipolar disorder or MDD. Further higher quality RCTs are warranted to determine the role of adjunctive NAC in the treatment of major psychiatric disorders.
    MeSH term(s) Acetylcysteine/adverse effects ; Acetylcysteine/pharmacology ; Antioxidants/adverse effects ; Antioxidants/pharmacology ; Bipolar Disorder/drug therapy ; Depressive Disorder, Major/drug therapy ; Humans ; Randomized Controlled Trials as Topic ; Schizophrenia/drug therapy
    Chemical Substances Antioxidants ; Acetylcysteine (WYQ7N0BPYC)
    Language English
    Publishing date 2018-02-18
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Research Support, Non-U.S. Gov't ; Systematic Review
    ZDB-ID 103-x
    ISSN 1600-0447 ; 0001-690X
    ISSN (online) 1600-0447
    ISSN 0001-690X
    DOI 10.1111/acps.12862
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Density functional theory study of CsC(n)- (n = 1-10) clusters.

    Qi, J Y / Dang, L / Chen, M D / Wu, W / Zhang, Q E / Au, C T

    The journal of physical chemistry. A

    2008  Volume 112, Issue 48, Page(s) 12456–12462

    Abstract: In this paper, we report the design of numerous models of CsC(n)(-) (n = 1-10). By means of B3LYP density functional method, we carried out geometry optimization and calculation on the vibrational frequency. We found that the CsC(n)(-) (n = 4-10) ... ...

    Abstract In this paper, we report the design of numerous models of CsC(n)(-) (n = 1-10). By means of B3LYP density functional method, we carried out geometry optimization and calculation on the vibrational frequency. We found that the CsC(n)(-) (n = 4-10) clusters with Cs lightly embraced by C(n) are ground-state isomers. The structures are composed of C(n)(2-) and Cs(+) with the former being electronically stabilized by the latter. When n is even, the C(n) (n = 4-10) chain is polyacetylene-like. The CsC(n)(-) (n = 1-10) with even n are found to be more stable than those with odd n, and the result is in accord with the relative intensities of CsC(n)(-) (n = 1-10) observed in mass spectrometric studies. In this paper, we provide explanations for such trend of even/odd alternation based on concepts of the highest vibrational frequency, incremental binding energy, electron affinity, and dissociation channels.
    Language English
    Publishing date 2008-12-04
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/jp807039j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: A density functional study on beryllium-doped carbon dianion clusters CnBe2- (n = 4-14).

    Chen, M D / Li, X B / Yang, J / Zhang, Q E / Au, C T

    The journal of physical chemistry. A

    2006  Volume 110, Issue 13, Page(s) 4502–4508

    Abstract: Making use of the software of molecular graphics, we designed numerous models of C(n)()Be(2-) (n = 4-14). We carried out geometry optimization and calculation on vibration frequency by means of the B3LYP density functional method. After comparison of ... ...

    Abstract Making use of the software of molecular graphics, we designed numerous models of C(n)()Be(2-) (n = 4-14). We carried out geometry optimization and calculation on vibration frequency by means of the B3LYP density functional method. After comparison of structure stability, we found that the ground-state isomers of C(n)()Be(2-) (n = 4-14) are linear with the beryllium atom located inside the C(n)() chain. When a side carbon chain is with an even number of carbon atoms, it is polyacetylene-like, whereas when a side chain is with an odd number of carbon atoms, it is cumulene-like. The C(n)Be(2-) (n = 4-14) clusters with an even number of carbon atoms are more stable than that with an odd number of carbon atoms, matching the peak pattern observed in accelerator mass spectrometry (AMS) and Coulomb Explosion Imaging (CEI) investigations of C(n)()Be(2-) (n = 4-14). The trend of such odd/even alternation is explained based on concepts of bonding characteristics, electronic configuration, electron detachment, and incremental binding energy.
    Language English
    Publishing date 2006-04-06
    Publishing country United States
    Document type Journal Article
    ISSN 1089-5639
    ISSN 1089-5639
    DOI 10.1021/jp054830g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Parity alternation of ground-state P(n)(-) and P(n)(+) (n = 3-15) phosphorus clusters.

    Chen, M D / Chen, Q B / Liu, J / Zheng, L S / Zhang, Q E / Au, C T

    The journal of physical chemistry. A

    2007  Volume 111, Issue 2, Page(s) 216–222

    Abstract: The ground-state structures of neutral, cationic, and anionic phosphorus clusters P(n), P(n)(+), and P(n)(-) (n = 3-15) have been calculated using the B3LYP/6-311+G* density functional method. The P(n)(+) and P(n)(-) (n = 3-15) clusters with odd n were ... ...

    Abstract The ground-state structures of neutral, cationic, and anionic phosphorus clusters P(n), P(n)(+), and P(n)(-) (n = 3-15) have been calculated using the B3LYP/6-311+G* density functional method. The P(n)(+) and P(n)(-) (n = 3-15) clusters with odd n were found to be more stable than those with even n, and we provide a satisfactory explanation for such trends based on concepts of energy difference, ionization potential, electron affinity, and incremental binding energy. The result of odd/even alternations is in good accord with the relative intensities of cationic and anionic phosphorus clusters observed in mass spectrometric studies.
    Language English
    Publishing date 2007-01-18
    Publishing country United States
    Document type Journal Article
    ISSN 1089-5639
    ISSN 1089-5639
    DOI 10.1021/jp0669355
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Processing sites are different in the generation of HLA-A2.1-restricted, T cell reactive tumor antigen epitopes and viral epitopes.

    Yang, X F / Mirkovic, D / Zhang, S / Zhang, Q E / Yan, Y / Xiong, Z / Yang, F / Chen, I H / Li, L / Wang, H

    International journal of immunopathology and pharmacology

    2006  Volume 19, Issue 4, Page(s) 853–870

    Abstract: In order to improve the processing efficiency of T cell tumor antigen epitopes, this bioinformatic study compares proteolytic sites in the generation of 47 experimentally identified HLA-A2.1-restricted immunodominant tumor antigen epitopes to those of 52 ...

    Abstract In order to improve the processing efficiency of T cell tumor antigen epitopes, this bioinformatic study compares proteolytic sites in the generation of 47 experimentally identified HLA-A2.1-restricted immunodominant tumor antigen epitopes to those of 52 documented HLA-A2.1-restricted immunodominant viral antigen epitopes. Our results show that the amino acid frequencies in the C-terminal cleavage sites of the tumor antigen epitopes, as well as several positions within the 10 amino acid (aa) flanking regions, are significantly different from those of the viral antigen epitopes. In the 9 amino acid epitope region, frequencies differed somewhat in the secondary-anchored amino acid residues on E3 (the third aa of the epitope), E4, E6, E7 and E8; however, frequencies in the primary-anchored positions, on E2 and E9, for binding in the HLA-A2.1 groove, remained almost identical. The most frequently occurring amino acid pairs in both N-terminal and C-terminal cleavage sites in the generation of tumor antigen epitopes were different from those of the viral antigen epitopes. Our findings demonstrate for the first time that these two groups of epitopes may be cleaved by distinct sets of proteasomes and peptidases or similar enzymes with lower efficiencies for tumor epitopes. In the future, in order to more effectively generate tumor antigen epitopes, targeted activation of the immunoproteasomes and peptidases that mediate the cleavage of viral epitopes could be achieved, thus enhancing our potential for antigen-specific tumor immunotherapy.
    MeSH term(s) Antigens, Neoplasm/immunology ; Antigens, Viral/immunology ; Base Sequence ; DNA Primers ; Epitopes/immunology ; HLA-A2 Antigen/immunology ; Humans ; Male ; Prostatic Neoplasms/immunology ; Prostatic Neoplasms/pathology ; Reverse Transcriptase Polymerase Chain Reaction
    Chemical Substances Antigens, Neoplasm ; Antigens, Viral ; DNA Primers ; Epitopes ; HLA-A2 Antigen
    Language English
    Publishing date 2006-10
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 645171-8
    ISSN 2058-7384 ; 0394-6320
    ISSN (online) 2058-7384
    ISSN 0394-6320
    DOI 10.1177/039463200601900415
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: A THEORETICAL STUDY OF THE ISOMERS OF PHOSPHORUS CLUSTERS P11, P11+ AND P11-

    Chen, M. D. / Luo, Η. B. / Liu, Μ. H. / Zhang, Q. E. / Au, C.T.

    Main Group Metal Chemistry, Vol 23, Iss 7, Pp 361-

    2000  Volume 368

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2000-07-01T00:00:00Z
    Publisher De Gruyter
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: A THEORETICAL STUDY ON THE STRUCTURES OF PHOSPHORUS CLUSTERS P12

    Chen, M. D. / Luo, Η. B. / Qiu, Z. J. / Zhang, Q. E. / Au, C.T.

    Main Group Metal Chemistry, Vol 23, Iss 5, Pp 291-

    2000  Volume 298

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2000-05-01T00:00:00Z
    Publisher De Gruyter
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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