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Is magnesium deficiency the major cause of needle chlorosis of Pinus taeda in Brazil?

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Journal of Forestry Research 2024年第2期35卷 209-221页

作者： Antônio carl.s Vargas Motta Shizuo Maeda Valdécio dos santos dos santos Rodrigues Tamires Maiara Ercole Stephen Arthur Prior ana Elisa Lyra Brumat Amanda Pacheco Cardoso Moura Julierme Zimmer Barbosa João Bosco Vasconcellos Gomes Department of Soil Sciences and Agriculture Engineering Federal University of ParanáR.dos Funcionários1540.CuritibaParanáCEP 80035‑050Brazil Brazilian Agricultural Research Company Embrapa FlorestasEstr.da Ribeira–Br‑476Km 111–Parque Monte Castelo.ColomboParanáCEP 83411‑000Brazil United States Department of Agriculture‑Agricultural Research Service USDA-ARS National Soil Dynamics Laboratory411 South Donahue DriveAuburnAL 36832USA Reforestation Remasa Rodovia PR 170–Km 522.BiturunaParanáCEP 84640‑000Brazil Federal Institute of Southeast of Minas Gerais R.Luz Interior360.Juiz de ForaMinas Gerais CEP 36030‑713Brazil

Needle chlorosis(NC)in Pinus taeda *** in Brazil becomes more frequent after second and third harvest rotation *** a study to identify factors contributing to yellowing needle chorosis(YNC),trees were grown in soils originating from contrasting parent materials,and soils and needles(whole,green and chlorotic portions)from 1-and 2-year-old branches and the first and second needle flush release at four sites with YNC on *** were analyzed for various elements and *** soils had very low base levels(Ca^(2+),Mg^(2+)and K^(+))and P,suggesting a possible lack of multiple *** symptoms started at needle tips,then extended toward the needle base with *** flush needles had longer portions with YNC than second flush needles *** from the lower crown also had more symptoms along their length than those higher in the *** were similar to those reported for *** chlorotic portions,Mg and Ca concentrations were well below critical values;in particular,Mg levels were only one third of the critical value of 0.3 g kg^(-1).Collectively,results suggest that Mg deficiency is the primary reason for NC of *** in various parent soils in Brazil.

关键词： Nutritional deficiency Forest management Soil depletion Pine foliar analysis Needle chlorosis

Nutritional Screening Tools in Institutionalized People: A Case Study of Using Nutritional Risk Screening (NRS 2002) and Mini Nutritional Assessment (MNA)

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Food and Nutrition Sciences 2024年第7期15卷 565-575页

作者： ana Cláudia Araújo Santana daiane Costa dos santos Mariana Buranelo Egea Campus Rio Verde Goiano Federal Institute of Education Science and Technology Rio Verde Brazil Centro Universitrio UniBRAS de Rio Verde Rio Verde Brazil

Nutritional status expresses the physiological and nutritional needs to maintain the composition and adequate functioning of the organism. NRS 2002 and MNA protocols were applied to short-term institutionalized patients in Rio Verde (Brazil). Older adults and people with special needs of all ages, both sexes, regardless of possible pathology they may have, except if it causes contagion, were included, patients duly authorized by the person responsible for the institution and who were able to undergo evaluation. Thirty-eight patients from the institution were evaluated, of which ten were excluded from the research according to pre-established criteria. More than 50% of participants were male, with an overall average age of 63.43 years. The characteristics related to nutritional status by NRS 2002 and MNA showed that the risk of malnutrition and its absence are associated with a wide age range. The MNA presents a more nuanced nutritional risk classification, showing that even 61% of the 96% of participants who would be out of nutrition risk, according to the NRS 2002, are “at risk of malnutrition”. Applying the MNA can demonstrate more conservative results than the NRS 2002.

关键词： Nursing Home Elderly Nutritional Risk Overweight

Urea breath test for Helicobacter pylori infection in adult dyspeptic patients: A meta-analysis of diagnostic test accuracy

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World Journal of Gastroenterology 2024年第6期30卷 579-598页

作者： Fabian Fellipe Bueno Lemos Caroline Tianeze de Castro Marcel sil.a Luz Gabriel Reis Rocha Gabriel Lima Correa santos Luís Guilherme de Oliveira sil.a Mariana santos Calmon Cláudio Lima Souza ana carl. Zarpelon-Schutz Kádima Nayara Teixeira Dulciene Maria de Magalhães Queiroz Fabrício Freire de Melo Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil Instituto de Saúde Coletiva Universidade Federal da BahiaSalvador 40110040BahiaBrazil Campus Toledo Universidade Federal do ParanáToledo 85919-899ParanáBrazil Laboratory of Research in Bacteriology UFMGBelo Horizonte 30130-100Minas GeraisBrazil

BACKGROUND Helicobacter pylori(***)infection has been well-established as a significant risk factor for several gastrointestinal *** urea breath test(UBT)has emerged as a leading non-invasive method for detecting *** numerous studies confirming its substantial accuracy,the reliability of UBT results is often compromised by inherent *** findings underscore the need for a rigorous statistical synthesis to clarify and reconcile the diagnostic accuracy of the UBT for the diagnosis of *** *** To determine and compare the diagnostic accuracy of 13C-UBT and 14C-UBT for *** infection in adult patients with *** We conducted an independent search of the PubMed/MEDLINE,EMBASE,and Cochrane Central databases until April *** search included diagnostic accuracy studies that evaluated at least one of the index tests(^(13)C-UBT or ^(14)C-UBT)against a reference *** used the QUAdaS-2 tool to assess the methodo-logical quality of the *** utilized the bivariate random-effects model to calculate sensitivity,specificity,positive and negative test likelihood ratios(LR+and LR-),as well as the diagnostic odds ratio(DOR),and their 95%confidence *** conducted subgroup analyses based on urea dosing,time after urea administration,and assessment *** investigate a possible threshold effect,we conducted Spearman correlation analysis,and we generated summary receiver operating characteristic(SROC)curves to assess ***,we visually inspected a funnel plot and used Egger’s test to evaluate publication *** both as reliable diagnostic tools in clinical *** In summary,our study has demonstrated that ^(13)C-UBT has been found to outperform the ^(14)C-UBT,making it the preferred diagnostic ***,our results emphasize the significance of carefully considering urea dosage,assessment timing,and measurement techniques for both tests to enh

关键词： Helicobacter pylori Urea breath test Diagnosis Diagnostic test accuracy Meta-analysis

Design multifunctional Mg–Zr coatings regulating Mg alloy bioabsorption

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Journal of Magnesium and Alloys 2024年第4期12卷 1461-1478页

作者： Zohra Benzarti Sandesh Itani Josédavid Castro Sandra Carvalho ana Sofia Ramos University of Coimbra CEMMPREARISEDepartment of Mechanical EngineeringRua Luís Reis Santos3030-788CoimbraPortugal Laboratory of Multifunctional Materials and Applications(LaMMA) Department of PhysicsFaculty of Sciences of SfaxUniversity of SfaxSoukra Road km 3.5B.P.1171Sfax3000Tunisia

Magnesium(Mg)alloys are widely used for temporary bone implants due to their favorable biodegradability,cytocompatibility,hemocompatibility,and close mechanical properties to ***,rapid degradation and inadequate strength limit their *** overcome this,the direct current magnetron sputtering technique is employed for surface coating in Mg-based alloys using various zirconium(Zr)*** approach presents a promising strategy for simultaneously improving corrosion resistance,maintaining biocompatibility,and enhancing strength without compromising *** leveraging Mg’s inherent biodegradability,it has the potential to minimize the need for secondary surgeries,thereby reducing costs and *** paper is a systematic study aimed at understanding the corrosion mechanisms of Mg–Zr coatings,denoted Mg-xZr(x=0–5 at.%).Zr-doped coatings exhibited columnar growth leading to denser and refined structures with increasing Zr *** analysis confirmed the presence of the Mg(00.2)basal plane,shifting towards higher angles(1.15°)with 5 at.%Zr doping due to lattice parameter changes(i.e.,decrease and increase of“c”and“a”lattice parameters,respectively).Mg–Zr coatings exhibited“liquidphilic”behavior,while Young’s modulus retained a steady value around 80 GPa across all ***,the hardness has significantly improved across all samples’coating,reaching the highest value of(2.2±0.3)GPa for 5 at.%*** testing in simulated body fluid(SBF)at 37℃ revealed a significant enhancement in corrosion resistance for Mg–Zr coatings containing 1.0–3.4 at.%*** with the 5 at.%Zr coating which exhibited a corrosion rate of 32 mm/year,these coatings displayed lower corrosion rates,ranging from 1 to 12 mm/*** synergistic enhancement in mechanical properties and corrosion resistance,achieved with 2.0–3.4 at.%Zr,suggests potential ability for reducing stress shielding and controlled degradation performance,and consequentl

关键词： Mg-Zr coatings Magnetron sputtering Nanoindentation Corrosion resistance Bone implants

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棒与星系整体恒星形成性质关系的统计研究

天文学进展 2024年第1期42卷 115-127页

作者：穆子豪沈世银 Rafael S.de Souza ana L.Chies-santos 中国科学院上海天文台星系宇宙学重点实验室上海200030 中国科学院大学北京100049 星系和宇宙学半解析研究重点实验室上海200034 赫特福德大学天体物理研究中心英国哈特菲尔德学院巷AL109AB 南里奥格兰德州联邦大学科学研究所巴西阿雷格里港9500

盘状星系中的棒结构特征与星系自身所处环境及整体恒星形成特征之间存在复杂的相互关系。利用细致的星系形态特征测量计划Galaxy Zoo DECaLS中的数据构建了一组目前最大的具有同样恒星质量分布的强棒、弱棒和无棒星系样本。通过引入星... 详细信息

盘状星系中的棒结构特征与星系自身所处环境及整体恒星形成特征之间存在复杂的相互关系。利用细致的星系形态特征测量计划Galaxy Zoo DECaLS中的数据构建了一组目前最大的具有同样恒星质量分布的强棒、弱棒和无棒星系样本。通过引入星系所处暗晕质量及相空间特征来控制星系所处的环境效应之后,进一步对比研究强棒、弱棒和无棒星系的恒星形成特征。研究表明,有棒星系中的恒星形成熄灭的比例系统地高于无棒星系,且强棒的效应更为明显。但是,对于仍处于恒星形成主序上的星系来说,强棒、弱棒和无棒星系的恒星形成特征并没有显著差别。以上结果表明,星系中的棒特征在其存在的时标中可能使部分星系迅速地从恒星形成转入熄灭状态。

关键词：棒旋星系恒星形成环境

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Long chikungunya?An overview to immunopathology of persistent arthralgia

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World Journal of Virology 2024年第2期13卷 48-57页

作者： Jayme Euclydes Picasky silveira-Freitas Maria Luiza Campagnolo Mariana dos santos Cortez Fabrício Freire de Melo ana carl. Zarpelon-Schutz Kádima Nayara Teixeira Campus Toledo Universidade Federal do ParanáToledoParaná85919-899Brazil Instituto Multidisciplinar em Saúde Universidade Federal da BahiaCampus Anísio TeixeiraVitória da ConquistaBahia 45029-094Brazil Programa de Pós-graduação em Biotecnologia PalotinaUniversidade Federal do Paraná-Setor PalotinaParaná85950-000Brazil Programa Multicêntrico de Pós-graduação em Bioquímica e Biologia Molecular PalotinaUniversidade Federal do Paraná-Setor PalotinaParaná85950-000Brazil

Chikungunya fever(CF)is caused by an arbovirus whose manifestations are extremely diverse,and it has evolved with significant severity in recent *** clinical signs triggered by the Chikungunya virus are similar to those of other ***,fever starts abruptly and reaches high levels,followed by severe polyarthralgia and myalgia,as well as an erythematous or petechial maculopapular rash,varying in severity and *** 40%to 60%of affected individuals report persistent arthralgia,which can last from months to *** symptoms of CF mainly represent the tissue tropism of the virus rather than the immunopathogenesis triggered by the host's immune *** main mechanisms associated with arthralgia have been linked to an increase in T helper type 17 cells and a consequent increase in receptor activator of nuclear factor kappa-Βligand and bone *** review suggests that persistent arthralgia results from the presence of viral antigens post-infection and the constant activation of signaling lymphocytic activation molecule family member 7 in synovial macrophages,leading to local infiltration of CD4+T cells,which sustains the inflammatory process in the joints through the secretion of pro-inflammatory *** term"long chikungunya"was used in this review to refer to persistent arthralgia since,due to its manifestation over long periods after the end of the viral infection,this clinical condition seems to be characterized more as a sequel than as a symptom,given that there is no active infection involved.

关键词： Chikungunya Immunopathology Inflammation process Persistent arthralgia Signaling lymphocytic activation molecule family member 7

Dietary(poly)phenol intake is associated with cardiometabolic health parameters in adolescents

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Food Science and Human Wellness 2024年

作者： Emily P.Laveriano-santos Sara Castro-Barquero Camila Arancibia-Riveros ana María Ruiz-León Rosa Casas Ramón Estruch Patricia Bodega Mercedes de Miguel Amaya de Cos-Gandoy Jesús Martínez-Gómez Gloria santos-Beneit Juan M.Fernández-Alvira Rodrigo Fernández-Jiménez Rosa M.Lamuela-Raventós Anna Tresserra-Rimbau The Zena and Michael A.Wiener Cardiovascular Institute Icahn School of Medicine at Mount Sinai Department de Nutrició Ciències de l'Alimentació I Gastronomia XIA Facultat de Farmàcia i Ciències de l'alimentació Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB) Universitat de Barcelona Department of Internal Medicine Hospital Clínic Institutd'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS) University of Barcelona Consorcio CIBER M.P.Fisiopatología de la Obesidad y Nutrición (CIBERObn) Instituto de Salud carl.s III (ISCIII) Mediterranean Diet Foundation 5. Foundation for Science Health and Education (SHE) 6. Centro Nacional de Investigaciones Cardiovasculares (CNIC) CIBER de Enfermedades Cardiovasculares (CIBERCV) 9. Hospital Universitario Clínico San carl.s

Background: The protective role of (poly)phenols against metabolic disorders has been extensively studied in adults but not in ***: To assess associations of dietary (poly)phenols and their subclasses with cardiometabolic health parameters in adolescents. Methods: A cross-sectional study was conducted in 944 individuals aged 11 to 14 years enrolled in the SI! Program for Secondary Schools trial (NCT03504059). (Poly)phenol intake was assessed using semi-quantitative food frequency questionnaires and the Phenol-Explorer database. The measured cardiometabolic parameters were waist circumference (WC) age-sex z-score， blood pressure (BP) age-sex z-score， blood glucose (BG)， triglycerides (TG)， and high-density lipoprotein cholesterol (HDL-c). Multilevel mixed-effect linear regression models were applied to examine the association between (poly)phenol quintiles and cardiometabolic health ***: Compared to the lowest quintile， adolescents in the highest quintile of total (poly)phenol intake had lower WC z-scores (β=-0.09， 95%CI=-0.09;-0.08， P-for trend=0.002)， mean arterial pressure z-scores (β =-0.11， 95%CI=-0.12;-0.09， P-for trend=0.206)， and HDL-c (β=-1.52， 95%CI=-2.90;-0.14， P-for trend=0.108)， after multivariable adjustment. The WC z-scores (β=-0.11， 95%CI=-0.19;-0.03， P-for trend=0.013) and HDL-c (β=-2.16， 95%CI=-3.78;-0.53， P-for trend=0.046) were lower in the highest quintile of flavonoid intake compared to the lowest quintile. The highest quintile of phenolic acid intake was associated with a lower WC z-score (β=-0.14， 95%CI=-0.26;-0.02， P-for trend=0.011) and TG levels (β=-8.83， 95%CI=-12.37;-5.30， P-for trend <0.001)， and the highest quintile of stilbene intake with lower BG (β=-1.83， 95%CI= -3.103;-0.64， P-for trend <0.001) and TG (β=-3.22， 95%CI= -4.95;-1.49， P-for trend=0.034)， and with higher HDL-c (β=2.328， 95%CI= 1.40;3.17， P-for trend=0.466) compared to the lowest quintile. Conclusion: A higher intake of (poly)phenols， espe

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Is magnesium deficiency the major cause of needle chlorosis of Pinus taeda in Brazil?

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Journal of Forestry Research 2024年第2期 213-225页

作者： Ant?nio carl.s Vargas Motta Shizuo Maeda Valdécio dos santos dos santos Rodrigues Tamires Maiara Ercole Stephen Arthur Prior ana Elisa Lyra Brumat Amanda Pacheco Cardoso Moura Julierme Zimmer Barbosa Jo?o Bosco Vasconcellos Gomes Department of Soil Sciences and Agriculture Engineering Federal University of Paraná Brazilian Agricultural Research Company Embrapa Florestas 3. United States Department of Agriculture-Agricultural Research Service USDA-ARS National Soil Dynamics Laboratory 4. Reforestation Remasa 5. Federal Institute of Southeast of Minas Gerais

Needle chlorosis(NC) in Pinus taeda L. systems in Brazil becomes more frequent after second and third harvest rotation cycles. In a study to identify factors contributing to yellowing needle chorosis(YNC), trees were grown in soils originating from contrasting parent materials, and soils and needles(whole, green and chlorotic portions) from 1-and 2-year-old branches and the first and second needle flush release at four sites with YNC on P. taeda were analyzed for various elements and properties. All soils had very low base levels(Ca2+, Mg2+and K+) and P, suggesting a possible lack of multiple elements. YNC symptoms started at needle tips, then extended toward the needle base with time. First flush needles had longer portions with YNC than second flush needles did. Needles from the lower crown also had more symptoms along their length than those higher in the canopy. Symptoms were similar to those reported for Mg. In chlorotic portions, Mg and Ca concentrations were well below critical values; in particular, Mg levels were only one third of the critical value of 0.3 g kg-1. Collectively, results suggest that Mg deficiency is the primary reason for NC of P. taeda in various parent soils in Brazil.

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The brain as a source and a target of prolactin in mammals

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Neural Regeneration Research 2022年第8期17卷 1695-1702页

作者： ana R.Costa-Brito Isabel Gonçalves Cecília R.A.santos CICS-UBI-Health Sciences Research Centre Universidade da Beira InteriorCovilhãPortugal C4-UBI-Cloud Computing Competence Centre Universidade da Beira InteriorCovilhãPortugal

Prolactin is a polypeptide hormone associated with an extensive variety of biological *** the roles of prolactin in vertebrates,some were preserved throughout *** is the case of its function in the brain,where prolactin receptors,are expressed in different structures of the central nervous *** the brain,prolactin actions are principally associated with reproduction and parental behavior,and involves the modulation of adult neurogenesis,neuroprotection,and neuroplasticity,especially during pregnancy,thereby preparing the brain to *** is mainly produced by specialized cells in the anterior pituitary ***,during vertebrate evolution many other extrapituitary tissues do also produce prolactin,like the immune system,endothelial cells,reproductive structures and in several regions of the *** review summarizes the relevance of prolactin for brain function,the sources of prolactin in the central nervous system,as well as its local production and secretion.A highlight on the impact of prolactin in human neurological diseases is also provided.

关键词： brain brain disease choroid plexus neurogenesis neuroplasticity neuroprotection prolactin prolactin receptor

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