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Brain-derived neurotrophic factor signaling in the neuromuscular junction during developmental axonal competition and synapse elimination

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Neural Regeneration Research 2025年第2期20卷 394-401页

作者： Josep Tomàs Víctor Cilleros-Mañé Laia Just-Borràs Marta Balanyà-Segura Aleksandra Polishchuk Laura Nadal Marta Tomàs Carolina Silvera-Simón Manel M.Santafé maria a.lanuza Unitat d’Histologia i Neurobiologia(UHNeurob) Facultat de Medicina i Ciències de la SalutUniversitat Rovira i VirgiliReusSpain

During the development of the nervous system,there is an overproduction of neurons and *** competition between neighboring nerve endings and synapses performing different activity levels leads to their elimination or *** have extensively studied the involvement of the brain-derived neurotrophic factor-Tropomyosin-related kinase B receptor neurotrophic retrograde pathway,at the neuromuscular junction,in the axonal development and synapse elimination process versus the synapse *** purpose of this review is to describe the neurotrophic influence on developmental synapse elimination,in relation to other molecular pathways that we and others have found to regulate this *** particular,we summarize our published results based on transmitter release analysis and axonal counts to show the different involvement of the presynaptic acetylcholine muscarinic autoreceptors,coupled to downstream serine-threonine protein kinases A and C(PKA and PKC)and voltage-gated calcium channels,at different nerve endings in developmental *** dynamic changes that occur simultaneously in several nerve terminals and synapses converge across a postsynaptic site,influence each other,and require careful studies to individualize the mechanisms of specific *** describe an activity-dependent balance(related to the extent of transmitter release)between the presynaptic muscarinic subtypes and the neurotrophin-mediated TrkB/p75NTR pathways that can influence the timing and fate of the competitive interactions between the different axon *** downstream displacement of the PKA/PKC activity ratio to lower values,both in competing nerve terminals and at postsynaptic sites,plays a relevant role in controlling the elimination of supernumerary ***,calcium entry through L-and P/Q-subtypes of voltage-gated calcium channels(both channels are present,together with the N-type channel in developing nerve terminals)contributes to red

关键词： acetylcholine release adenosine receptors axonal competition brain-derived neurotrophic factor calcium channels motor end-plate muscarinic acetylcholine receptors postnatal synapse elimination serine kinases tropomyosin-related kinase receptorB

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Epistatic interactions between pterin and carotenoid genes modulate intra-morph color variation in a lizard

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Integrative Zoology 2022年第1期17卷 44-53页

作者： Prem AGUILAR Pedro ANDRADE Guillem PÉREZ I DE lanuza CIBIO/InBIO Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do PortoPortoPortugal Ethology Lab Institut Cavanilles de Biodiversitat i Biologia EvolutivaUniversitat de ValènciaValènciaSpain

Color polymorphisms have become a major topic in evolutionary biology and substantial efforts have been devoted to the understanding of the mechanisms responsible for originating such colorful ***-morph continuous variation,on the other hand,has been neglected in most of the ***,we combine spectrophotometric/visual modeling and genetic data to study the mechanisms promoting continuous variation within categorical color morphs of Podarcis *** results suggest that intra-morph variability in the pterin-based orange morph is greater compared to white and yellow *** also show that continuous variation within the orange morph is partially discriminable by *** results indicate that allelic variants at the BCO2 locus(responsible for deposition of yellow carotenoids)contribute to generate continuous variation in orange ***,other intrinsic and/or extrinsic mechanisms,such as body size,might be involved,opening a new avenue for future research on the drivers of continuous variation within-morphs.

关键词： BCO2 color polymorphism continuous variation lizard Podarcis muralis

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Viability,behavior,and color expression in the offspring of matings between common wall lizard Podarcis muralis color morphs

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Current Zoology 2022年第1期68卷 41-55页

作者： Javier ABALOS Guillem PEREZ I DE lanuza Alicia BARTOLOME Fabien AUBRET Tobias ULLER Enrique FONT Ethology Lab Instituto Cavanilles de Biodiversidad y Biologı´a EvolutivaUniversitat de ValenciaValenciaSpain CIBIO/InBIO Centro de Investigacao em Biodiversidade e Recursos Geneticos da Universidade do PortoPortoPortugal SETE Station d’Ecologie Theorique et ExperimentaleUPR2001Centre National de la Recherche ScientifiqueParisFrance Department of Biology Lund UniversityLundSweden

Color polymorphisms are widely studied to identify the mechanisms responsible for the origin and maintenance of phenotypic variability in *** of the mechanisms of balancing selection currently thought to explain the long-term persistence of polymorphisms are the evolution of alternative phenotypic optima through correlational selection on suites of traits including color and *** of these mechanisms can generate differences in offspring viability and fitness arising from different morph ***,we examined the effect of parental morph combination on fertilization success,embryonic viability,newborn quality,antipredator,and foraging behavior,as well as inter-annual survival by conducting controlled matings in a polymorphic lacertid Podarcis muralis,where color morphs are frequently assumed to reflect alternative phenotypic optima(e.g.,alternative reproductive strategies).Juveniles were kept in outdoor tubs for a year in order to study inter-annual growth,survival,and morph *** agreement with a previous genome-wide association analysis,morph frequencies in the year-old juveniles matched the frequencies expected if orange and yellow expressions depended on recessive homozygosity at 2 separate *** findings also agree with previous literature reporting higher reproductive output of heavy females and the higher overall viability of heavy newborn lizards,but we found no evidence for the existence of alternative breeding investment strategies in female morphs,or morphcombination effects on offspring viability and *** conclude that inter-morph breeding remains entirely viable and genetic incompatibilities are of little significance for the maintenance of discrete color morphs in *** from the Pyrenees.

关键词： alternative breeding strategies color polymorphism controlled matings lizard behavior morph ontogeny newborn viability

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破碎化景观格局中热带干旱森林的结构、多样性与保护价值

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Journal of Plant Ecology 2023年第1期16卷 163-176页

作者： Oscar R.lanuza Fernando Casanoves Sergio Vílchez-Mendoza Josep maria Espelta Josep Peñuelas Guille Peguero Facultad Regional Multidisciplinaria Estelí Universidad Nacional Autónoma de Nicaragua(UNAN Managua/FAREM Estelí)49EstelíNicaragua CREAF E08193 BellaterraCerdanyola del VallèsSpain Global Ecology Unit CSICCREAF‐CSIC‐UAB08193 BellaterraCataloniaSpain CATIE-Centro Agronómico Tropical de Investigación y Enseñanza 30501TurrialbaCosta RicaSpain Departament de Biologia Animal Biologia Vegetal i EcologiaUniversitat Autònoma de Barcelona08193 BellaterraSpain

尽管热带干旱森林是世界上退化和破碎化程度最严重的生物群落之一,但我们对它们的基本生态特征和保护状况仍然知之甚少,尤其是在新热带地区。在本研究中,我们对尼加拉瓜破碎化景观格局中的热带干旱森林的多样性、组成、结构和保护价值... 详细信息

尽管热带干旱森林是世界上退化和破碎化程度最严重的生物群落之一,但我们对它们的基本生态特征和保护状况仍然知之甚少,尤其是在新热带地区。在本研究中,我们对尼加拉瓜破碎化景观格局中的热带干旱森林的多样性、组成、结构和保护价值进行了评估。我们在河流廊道、次生林、绿篱和林间牧地之中和沿线地区建立了31处样地和样带。我们使用希尔数(Hill number)对胸高处直径≥2.5 cm的所有树木进行了记录,并对每种森林类型中树木的丰富性和多样性进行了估算,接着计算了种级分类和科级分类上的重要值指数(Importance Value Index,IVI),最后则使用Bray-Curtis相似性指数进行了非度量多维标度(Non-Metric Multidimensional Scaling,NMDS)排序和相似性分析(Analysis of Similarities,ANOSIM)。不同森林类型之间在多样性上存在差异,但物种丰富度却不存在差异。豆科植物的IVI值最高,其次是桑科植物和锦葵科植物。Vachellia pennatula、Guazuma ulmifolia和Bursera simaruba的IVI值都>30%,其中前两种是所有森林类型中最为丰富的树木。对群落的相似性进行分析后可知每种森林类型都有着不同的组成,从而凸显了对所有这些不同类型的土地覆盖开展保护的重要性。

关键词：豆科植物破碎化希尔数(Hill number) 重要值指数河流廊道热带干旱森林

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Large gangliocytic paraganglioma of the duodenum:A rare entity

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World Journal of Gastrointestinal Surgery 2015年第8期7卷 170-173页

作者： Alejandra Gordillo Hernández Eduardo Dominguez-Adame lanuza Auxiliadora Cano Matias Rosario Perez Huertas Katherine maria Gallardo Rodriguez Purificacion Gallinato Perez Fernando Oliva Mompean Servicio de Cirugia General Hospital Universitario Virgen de Macarena Jefe de Sección de Cirugia Laparoscopica Avanzada y Cirugía Bariatrica Hospital Universitario Virgen de Macarena Servicio de Anatomia Patologica Hospital Universitario Virgen de Macarena

Gangliocytic paragangliomas are rare tumors that almost exclusively occur within the second portion of the duodenum. Although these tumors generally have a benign clinical course, they have the potential to recur or metastasize to regional lymph nodes. The case report presented here describes a 57-year-old female patient with melena, progressive asthenia, anemia, and a mass in the second-third portion of the duodenum that was treated by local excision. The patient was diagnosed with a friable bleeding tumor. The histologic analysis showed that the tumor was a 4 cm gangliocytic paraganglioma without a malignant cell pattern. In the absence of local invasion or distant metastasis, endoscopic resection represents a feasible, curative therapy. Although endoscopic polypectomy is currently considered the treatment of choice, it is not recommended if the size of the tumor is > 3 cm and/or there is active or recent bleeding. Patients diagnosed with a gangliocytic paraganglioma should be closely followed-up for possible local recurrence.

关键词： Duodenum Gangliocytic paraganglioma Ganglion cells

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Bone marrow progenitor cells do not contribute to liver fibrogenic cells

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World Journal of Hepatology 2012年第10期4卷 274-283页

作者： Bruno Diaz Paredes lanuza Alaby Pinheiro Faccioli Luiz Fernando Quintanilha Karina Dutra Asensi Camila Zaverucha do Valle Paulo César Canary Christina Maeda Takiya Antonio Carlos Campos de Carvalho Regina Coeli dos Santos Goldenberg Carlos Chagas Filho Biophysics Institute Rio de Janeiro 21941-902Brazil Radiology Department Clementino Fraga Filho University HospitalRio de Janeiro 22909-538Brazil

AIM:To investigate the contribution of bone marrow(BM) cells to hepatic ***:To establish a model of chimerism,C57Bl/6 female mice were subjected to full-body irradiation(7 Gy) resulting in BM *** mononuclear cells obtained from male transgenic mice expressing enhanced green fluorescent protein(GFP) were used for *** was confirmed by flow *** induce liver injury,chimeric animals received carbon tetrachloride(CCl4) 0.5 mL/kg intraperitoneally twice a week for 30 d(CCl4 30 d) and age-matched controls received saline(Saline 30 d).At the end of this period,animals were sacrificed for post mortem *** samples were stained with hematoxylin and eosin to observe liver architectural changes and with Sirius red for collagen quantification by morphometric analysis.α-smooth muscle actin(α-SMA) was analyzed by confocal microscopy to identify GFP+ cells with myofibroblast(MF) *** tissue,BM and peripheral blood were collected and prepared for flow cytometric analysis using specific markers for detection of hepatic stellate cells(HSCs) and precursors from the ***:Injury to the liver induced changes in the hepatic parenchymal architecture,as reflected by the presence of inflammatory infiltrate and an increase in collagen deposition(Saline 30 d = 11.10% ± 1.12% vs CCl4 30 d = 12.60% ± 0.73%,P = 0.0329).Confocal microscopy revealed increased reactivity against α-SMA in CCl4 30 d compared to Saline 30 d,but there was no co-localization with GFP+ cells,suggesting that cells from BM do not differentiate to *** flow cytometric analysis showed a significant increase of CD45+/GFP+ cells in liver tissue(Saline 30 d = 3.2% ± 2.2% vs CCl4 30 d = 5.8% ± 1.3%,P = 0.0458),suggesting that this increase was due to inflammatory cell infiltration(neutrophils and monocytes).There was also a significant increase of common myeloid progenitor cells(CD117+/CD45+) in the livers of CCl4-treated animals(Saline 3

关键词： Bone marrow Liver Fibrosis Progenitor cells Chimeric mice Green fluorescent protein+ cells

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Risk Factors and Gender Differences for Depression in Chilean Older Adults:A Cross-Sectional Analysis from the National Health Survey 2016–2017

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International Journal of Mental Health Promotion 2022年第5期24卷 679-697页

作者： Gabriela Nazar Carlos-María Alcover Yeny Concha-Cisternas Igor Cigarroa Ximena Díaz-Martínez Mariela Gatica-Saavedra Fabián lanuza Ana María Leiva-Ordónez María Adela Martínez-Sanguinetti Miquel Martorell Fanny Petermann-Rocha Claudia Troncoso-Pantoja Carlos Celis-Morales Departamento de Psicología Facultad de Ciencias SocialesUniversidad de ConcepciónConcepciónChile Centro de Vida Saludable Universidad de ConcepciónConcepciónChile Departamento de Psicología Facultad de Ciencias de la SaludUniversidad Rey Juan CarlosMadridEspaña Pedagogía en Educación Física Facultad de EducaciónUniversidad AutónomaTalcaChile Escuela de Kinesiología Facultad de SaludUniversidad Santo TomásLosÁngelesChile Grupo de Investigación Calidad de Vida Departamento de Ciencias de la EducaciónUniversidad del BiobíoChillánChile Depto de Psiquiatría y Salud Mental Facultad de MedicinaUniversidad de ConcepciónConcepciónChile Centro de Epidemiología Cardiovascular y Nutricional(EPICYN) Facultad de MedicinaUniversidad de La FronteraTemucoChile Biomarkers and Nutrimetabolomics Laboratory Department of NutritionFood Sciences and GastronomyFood Technology Reference Net(XIA)Nutrition and Food Safety Research Institute(INSA)Faculty of Pharmacy and Food SciencesUniversity of BarcelonaBarcelona08028Spain Instituto de Anatomía Histología y PatologíaFacultad de MedicinaUniversidad Austral de ChileValdiviaChile Instituto de Farmacia Facultad de CienciasUniversidad Austral de ChileValdiviaChile Departamento de Nutrición y Dietética Facultad de Farmacia.Universidad de ConcepciónConcepciónChile Facultad de Medicina Universidad Diego PortalesSantiagoChile BHF Glasgow Cardiovascular Research Centre Institute of Cardiovascular and Medical SciencesUniversity of GlasgowGlasgowUK Centro de Investigación en Educación y Desarrollo(CIEDE-UCSC).Departamento de Salud Pública Facultad de MedicinaUniversidad Católica de la Santísima ConcepciónConcepciónChile Laboratorio de Rendimiento Humano Grupo de Estudio en EducaciónActividad Física y Salud(GEEAFyS)Universidad Católica del MauleTalcaChile

Depressive disorders are recognized as one of the most common mental health conditions across different age ***,the risk factors associated with depression among older people from low-and middle-income countries remains *** study aims to identify socio-demographic,health and psychosocial-related factors associated with depression in Chilean older adults.A cross-sectional study was carried out in a representative sample of 1,765 adults aged≥60 years participants from the Chilean National Health Survey 2016–***-sion was assessed with the Composite International Diagnostic Interview(CIDI-SF).Associations between the exposure variables and depression were investigated using Poisson regression *** mainﬁndings indi-cated that women showed higher likelihood of depression than men(Prevalence Ratio(PR)=2.6[95%CI:1.40;4.89]).An increased likelihood of depression was found in older adults with chronic pain,multimorbidity(≥2 diseases),previous diagnose of depression,high perception of stress,ﬁnancial stress,and difﬁculties for social *** women,higher likelihood of depression was found for those with the frailty phenotype(PR:8.53[95%CI:1.68;43.32]),rheumatoid arthritis(PR:2.41[95%CI:1.34;4.34]),insomnia(PR:2.99[95%CI:1.74;5.12])and low self-rated well-being(PR:4.94[95%CI:2.26;10.79]).Men who were divorced(PR:7.10[95%CI:1.44;34.90])or widowed(PR:10.83[95%CI:3.71;31.58]),obese(PR:5.08[95%CI:1.48;17.42])and who had asthma(PR:7.60[95%CI:2.31;24.99])were associated with higher odds of *** currentﬁndings may have clinical implications for the early identiﬁcation of older adults more susceptible to depression and also suggest the need to implement cultural and age-sensitive strategies to promote mental health in late life.

关键词： Depression older adults aging late-life depression risk factors

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