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SOD1基因缺陷型小鼠耳蜗毛细胞和螺旋神经节及神经纤维的定量观察

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耳鼻喉学报 1999年第1期13卷 1-3页

作者：丁大连蒋海燕李明佳木斯医学院附属医院

定量观察了出生后１３个月的先天缺失ＳＯＤ１基因小鼠的耳蜗毛细胞以及螺旋神经节和疆孔内的神经纤维，并与同龄野生型和出生后２个月的野生型小鼠进行了比较。发现毛细胞和螺旋神经节的缺损约为５０％，神经纤维的减少则超过５０％。

关键词：毛细胞神经纤维螺旋神经节 SOD基因耳蜗损伤

Exploring the effects of dietary inulin in rainbow trout fed a high‑starch,100%plant‑based diet

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Journal of Animal Science and Biotechnology 2024年第2期15卷 713-732页

作者： Raphaël Defaix Jep lokesh laura Frohn Mickael le Bechec Thierry Pigot Vincent Veron Anne Surget sandra Biasutti Frederic Terrier Sandrine Skiba-Cassy Jerome Roy Stephane Panserat Karine Ricaud Universite de Pau Et Des Pays de l’Adour E2S UPPAINRAENUMEASaint‑Pee‑Sur‑NivelleFrance Universite de Pau Et Des Pays de l’Adour E2S UPPACNRSIMT Mines AlesIPREMPauFrance Universite de Pau Et Des Pays de l’Adour E2S UPPAIUT des Pays de l’AdourDepartement Genie BiologiqueMont de MarsanFrance.

Background High dietary carbohydrates can spare protein in rainbow trout(Oncorhynchus mykiss)but may affect growth and ***,a prebiotic,could have nutritional and metabolic effects,along with anti-inflammatory properties in teleosts,improving growth and *** tested this hypothesis in rainbow trout by feeding them a 100%plant-based diet,which is a viable alternative to fishmeal and fish oil in aquaculture *** a two-factor design,we examined the impact of inulin(2%)as well as the variation in the carbohydrates(CHO)/plant protein ratio on rainbow *** assessed the influence of these factors on zootechnical parameters,plasma metabolites,gut microbiota,production of short-chain fatty acids and lactic acid,as well as the expression of free-fatty acid receptor genes in the mid-intestine,intermediary liver metabolism,and immune markers in a 12-week feeding *** The use of 2%inulin did not significantly change the fish intestinal microbiota,but interestingly,the high CHO/protein ratio group showed a change in intestinal microbiota and in particular the beta diversity,with 21 bacterial genera affected,including Ralstonia,Bacillus,and 11 lactic-acid producing *** were higher levels of butyric,and valeric acid in groups fed with high CHO/protein diet but not with *** high CHO/protein group showed a decrease in the expression of pro-inflammatory cytokines(il1b,il8,and tnfa)in liver and a lower expression of the genes coding for tight-junction proteins in mid-intestine(tjp1a and tjp3).However,the 2%inulin did not modify the expression of plasma immune ***,inulin induced a negative effect on rainbow trout growth performance irrespective of the dietary *** With a 100%plant-based diet,inclusion of high levels of carbohydrates could be a promising way for fish nutrition in aquaculture through a protein sparing effect whereas the supplementation of 2%inulin does not appear to improve the use of CHO wh

关键词： Aquaculture Fish nutrition Gut microbiota Immune markers Intermediary metabolism Inulin Prebiotic Rainbow trout Short-chain fatty acids

Supramolecular Polymerization of Hydrogen-Bonded Trimers in Bulk and Aqueous Medium

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CCS Chemistry 2024年第6期6卷 1458-1465页

作者： Freek V.de Graaf Stef A.H.Jansen sandra M.C.Schoenmakers Bas van Genabeek Marle E.J.Vleugels Bart W.l.van den Bersselaar E.W.Meijer Ghislaine Vantomme Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic ChemistryEindhoven University of Technology5600 MBEindhoven School of Chemistry and RNA Institute University of New South WalesSydneyNew South Wales 2052

Synthetic molecules that form functional noncovalent assemblies in water have received much attention for their potential applications as *** this work,we introduce a novel water-compatible monomer based on the phthalhydrazide moiety that assembles into hydrogen-bonded trimeric *** bulk,the material exhibits a cylindrical nanostructure in the liquid-crystalline phase at elevated temperatures,morphologically distinct from the crystalline lamellar *** water,these molecules effectively form cylinders in a one-dimensional fashion,yielding fibrous *** formation of these supramolecular polymers follows a cooperative mechanism,as evidenced by denaturation *** trimerized pattern represents a new category of aqueous su pramolecular polymers with future prospects for functional complex molecular systems.

关键词： noncovalent chemistry supramolecular polymers hydrogen bonding cooperativity nanostructure

Scientific guidelines for preclinical research on potentised preparations manufactured according to current pharmacopoeias—the PrePoP guidelines

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Journal of Integrative Medicine 2024年第5期22卷 533-544页

作者： Alexander l.Tournier leoni V.Bonamin Susann Buchheim-Schmidt Steven Cartwright Christoph Dombrowsky Paul Doesburg Carla Holandino Maria Olga Kokornaczyk Everine B.van de Kraats Jesús Antonio lópez-Carvallo Papiya Nandy JoséManuel Mazón-Suástegui Fateme Mirzajani Bernard Poitevin Claudia Scherr Karin Thieves sandra Würtenberger Stephan Baumgartner Institute of Complementary and Integrative Medicine University of Bern Institute of Integrative Medicine Witten/Herdecke University Homeopathy Research Institute Graduate Program on Environmental and Experimental Pathology Paulista University Department of Medical Science Deutsche Hom?opathie-Union DHU-Arzneimittel GmbH&Co.KG Cherwell laboratory for Fundamental Research in Homeopathy Society for Cancer Research Hiscia Research Institute laboratório Multidisciplinar de Ciências Farmacêuticas Universidade Federal do Rio de Janeiro World Water Community Departamento de Acuicultura Facultad de Ciencias del MarUniversidad Católica del Norte Centre for Interdisciplinary Research and Education laboratorio de Homeopatía Acuícola y Semillas Marinas Centro de Investigaciones Biológicas del Noroeste Protein Research Center Shahid Beheshti University Department of Medical laboratory Science College of ScienceKnowledge University Socie′te′Savante d’Hom′eopathie Sola Salus Institute for Homeopathic Research Scientific Society for Homeopathy

Objective: Pharmacopoeias regulate the manufacture of potentised pharmaceutical preparations used in different branches of complementary and integrative medicine. The physicochemical properties and biological activity of these preparations are often investigated in preclinical research, yet no guidelines for experimental research currently exist in this area. The present PrePoP guidelines aim to provide recommendations to promote high-quality, statistically sound, and reproducible preclinical research on potentised ***: Input was gathered from researchers nominated by the relevant scientific societies using a simplified Delphi consensus approach covering the most relevant aspects of basic research methodology in the field including appropriate controls, sample preparation and handling, and statistics. After three rounds of feedback, a consensus was finally reached on the most important aspects and considerations for conducting high-quality research on potentised ***: We present a series of recommendations on a range of topics including experimental controls,system stability, blinding and randomisation, environmental influences, and procedures for the preparation of potentised samples and controls, and we address some specific challenges of this research ***: This expert consensus process resulted in a robust set of methodological guidelines for research on potentised preparations and provides a valuable framework that will inform and improve the quality of subsequent research in this emerging field.

关键词： Research guidelines Fundamental research Basic research Complementary and integrative medicine Potentisation Potentised preparations

The effect of laves phases and nano-precipitates on the electrochemical corrosion resistance of Mg-Al-Ca alloys under alkaline conditions

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Journal of Magnesium and Alloys 2024年第6期12卷 2447-2461页

作者： Markus Felten Veronika Chaineux Siyuan Zhang Ali Tehranchi Tilmann Hickel Christina Scheu Joshua Spille Marta lipińska-Chwałek Joachim Mayer Benjamin Berkels Marcus Hans Imke Greving Silja Flenner sandra Sefa Daniela Zander Chair of Corrosion and Corrosion Protection RWTH Aachen UniversityAachen 52072 Germany Max-Planck-Institut für Eisenforschung GmbH Düsseldorf 40237 Germany Central Facility for Electron Microscopy RWTH Aachen UniversityAachen 52074 Germany Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons Forschungszentrum Jülich GmbHJülich 52428Germany Mathematical Image and Signal Processing Aachen Institute for Advanced Study in Computational Engineering ScienceRWTH Aachen UniversityAachen 52062 Germany Materials Chemistry RWTH Aachen UniversityAachen 52074 Germany Institute of Materials Physics Helmholtz-Zentrum HereonGeesthacht 21502 Germany

The electrochemical corrosion mechanisms of Mg alloys were extensively studied in previous investigations of different chemical com-positions,modified surface states and various electrolyte ***,recent research focused on the active state of Mg dissolution,leading to unresolved effects of secondary phases adjacent to a stableα-solid solution passive *** present study investigates the fundamental electrochemical corrosion mechanisms of three different laves phases with varying phase morphologies and phase fractions in the passive state of Mg-Al-Ca *** microstructure was characterized by(transmission-)electron microscopy and synchrotron-based transmission X-ray *** electrochemical corrosion resistance was determined with a standard three-electrode setup and advanced in-situ flow cell measurements.A new electrochemical activity sequence(C15>C36>α-Mg>C14)was obtained,as a result of a stable passive layer formation on theα-solid ***,nm-scale Mg-rich precipitates were identified within the laves phases,which tend to inhibit the corrosion kinetics.

关键词： laves phase STEM Magnesium Corrosion Passive layer

Multi-tissue transcriptomics of a unique monozygotic discordant twin case of severe progressive osseous heteroplasia

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Genes & Diseases 2024年第3期11卷 22-25页

作者： Alberto Gomez-Carballa Maria Jose Curras-Tuala Sara Pischedda Miriam Cebey-lopez Jose Gomez-Rial Irene Rivero-Cale Jacobo Pardo-seco Xabier Bello sandra Viz-lasheras Antonio Justicia-Grande Julian Montoto-louzao Alba Camino-Mera Isabel Ferreiros-Vidal Maximo Fraga Jose RAntunez Rodolfo Gomez Federico Martinon-Torres Antonio Salas Genetics Vaccines and Infections Research Group(GENVIP)Instituto de Investigacion Sanitaria de SantiagoSantiagode CompostelaGalicia 15706Spain Translational Pediatrics and Infectious Diseases Department of PediatricsHospital Clinico Universitario de Santiago de CompostelaServicio Galego de Saude(SERGAS)Galicia 15706Spain laboratorio de Inmunologia Servicio de Andlisis ClinicosHospital Clinico Universitario de Santiago de CompostelaServicio Galego de Saude(SERGAS)Galicia 15706Spain Unidade de Xenetica Instituto de Ciencias Forenses(INCIFOR)Facultade de MedicinaUniversidade de Santiago de Compostelaand GenPoB Research GroupInstituto de Investigacion SanitariaHospital Clinico Universitario de Santiago de CompostelaServicio Galego de Saude(SERGAS)Galicia 15706Spain Musculoskeletal Pathology Group Instituto de Investigacion Sanitaria de SantiagoServicio Galego de Saude(SERGAS)Santiago de CompostelaGalicia 15706Spain Department of Pathology Hospital Clinico Universitario de Santiago de Compostela(SERGAS)Galicia 15706Spain Unidad Integrada de BiobancosBiomodelos 3D y Modelos Animales IDIS(lnstituto de Investigacion Sanitaria de Santiagode Compostela)Galicia15706Spain Centro de Investigacion Biomedica en Red de Enfermedades Respiratorias(CIBER-ES) MadridSpain

Progressive osseous heteroplasia(POH)is an ultra-rare autosomal dominant disabling disorder characterized by heterotopic ossification(HO).It is caused by heterozygous inactivating mutations in the GNAS(guanine nucleotide-binding protein alpha-stimulating activity polypeptide)***,the molecular mechanisms underlying HO remain poorly *** a treatment for POH is not yet available,the identification of the mechanisms driving POH in affected tissues using gene expression may be of great help to underestand the molecular basis of POH and develop new therapeutic approaches.

关键词： stimulating driving asi

Extracellular Disintegration of Viral Proteins as an Innovative Strategy for Developing Broad-Spectrum Antivirals Against Coronavirus

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CCS Chemistry 2024年第2期6卷 487-496页

作者： Ke Sun Zhe Ding Xiaoying Jia Haonan Cheng Yingwen li Yan Wu Zhuoyu li Xiaohua Huang Fangxu Pu Entao li Guiyou Wang Wei Wang Yun Ding Gary Wong sandra Chiu Jiaming lan Aiguo Hu Shanghai Key laboratory of Advanced Polymeric Materials School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237 CAS Key laboratory of Molecular Virology&Immunology Chinese Academy of SciencesShanghai 200031 University of the Chinese Academy of Sciences Beijing 100049 State Key laboratory of Virology Center for Biosafety Mega-ScienceWuhan Institute of VirologyChinese Academy of SciencesWuhan 430071 Division of life Sciences and Medicine University of Science and Technology of ChinaHefeiAnhui 230027 Department of Clinical laboratory The First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui 230001

The coronavirus disease 2019(COVID-19)pandemic,caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),has claimedmillions of lives and caused innumerable economic losses ***,state-of-the-art treatments still lag behind the continual emergence of new *** to resolving this issue is developing antivirals to deactivate coronaviruses regardless of their structural ***,we report an innovative antiviral strategy involving extracellular disintegration of viral proteins with hyperanion-grafted enediyne(EDY)*** core EDY generates reactive radical species and causes significant damage to the spike protein of coronavirus,while the hyperanion groups ensure negligible cytotoxicity of the *** EDYs exhibit antiviral activity down to nanomolar concentrations,and the selectivity index of up to 20,000 against four kinds of human coronavirus,including the SARS-CoV-2 Omicron variant,suggesting the high potential of this new strategy in combating the COVID-19 pandemic and a future“disease X.”

关键词： enediyne broad spectrum antiviral protein disintegration coronavirus polyanions

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ANCIENT EGYPT

Journal of Ancient Civilizations 2019年第1期34卷 83-111,127页

作者： sandra l.lippert CNRS ASM 5140Montpellier

The last 15 years or so have seen a marked increase in the publication of handbooks,manuals,lexica and encyclopaedia on various academic disciplines and *** consequence is that overview articles on ancient Egyptian law have also ***,the scope and content of such articles and chapters depend on the one hand on the expectations,specifications and word count parameters given by the editors,and on the other on the individual take of the *** five chapters1 by Richard Jasnow and Joe Manning that add up to almost 240 pages,Egyptian law fully takes its place alongside other Near Eastern legal systems in the chronologically ordered Handbook of Oriental Studies(HdO)double volume edited by Ray Westbrook,and the only reproach that one might find with the quasi-exhaustive handling of the subject is that the citations favour secondary literature over text editions and thus complicate access to the primary sources.

关键词： legal law Eastern

Diversity of dictyostelid social amoebae in high latitude habitats of Northern Sweden

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Fungal Diversity 2013年第1期58卷 185-198页

作者： Allison l.Perrigo sandra l.Baldauf Maria Romeralo Program in Systematic Biology Department of Organismal BiologyEvolutionary Biology CenterUppsala UniversityNorbyvägen 18D75236 UppsalaSweden

The dictyostelid social amoebae(Dictyostelia)occur in terrestrial habitats *** has been observed previously that their diversity decreases with increasing latitude and *** we look at dictyostelid diversity in the high latitude habitats of Northern *** were recovered from soil samples using traditional plating methods and then identified using morphological characters and molecular sequence(small subunit ribosomal RNA)*** total,nine species were recovered,including two new species,described herein as Dictyostelium barbibulus and Polysphondylium *** species diversity found here is discussed in relation to previous findings in the area as well as other high-latitude studies,and biogeographical patterns are *** total number of species found in Northern Sweden is lower than the numbers recorded for regions further south in Europe,a finding consistent with a latitudinal gradient of species *** findings highlight the benefit of using molecular data for accurate species identification in Dictyostelia and the need for a continued sampling effort to better understand their diversity and distribution,especially in high latitude habitats.

关键词： Cellular slime mold Dictyostelium Molecular identification New species Protist biogeography Sweden