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Distribution of serotonin and FMRF-amide in the brain of Lymnaea stagnalis with respect to the visual system

Zoological Research 2012年第3期33卷 1-12页

作者： Oksana P.TUCHINA valery v.zhukov victor B.MEYER-ROCHOW School of Engineering and Science Jacobs UniversityBremen D-28759Germany Department of Agricultural and Soil Ecology Faculty of Bioresources and Natural UsageKaliningrad State Technical UniversityKaliningrad 236000Russia Department of Biology Oulu UniversityOuluSF 90300 Finland

Despite serotonin’s and FMRF-amide’s wide distribution in the nervous system of invertebrates and their importance as neurotransmitters,the exact roles they play in neuronal networks leaves many *** mapped the presence of serotonin and FMRF-amide-immunoreactivity in the central nervous system and eyes of the pond snail Lymnaea stagnalis and interpreted the results in connection with our earlier findings on the central projections of different peripheral *** the chemical nature of the intercellular connections in the retina of *** is still largely unknown,we paid special attention to clarifying the role of serotonin and FMRF-amide in the visual system of this snail and compared our findings with those reported from other *** least one serotonin-and one FMRF-amidergic fibre were labeled in each optic nerve,and since no cell bodies in the eye showed immunoreactivity to these neurotransmitters,we believe that efferent fibres with somata located in the central ganglia branch at the base of the eye and probably release 5HT and FMRF-amide as *** labelling revealed retrograde transport of neurobiotin through the optic nerve,allowing us to conclude that the central pathways and serotonin-and FMRF-amide-immunoreactive cells and fibres have different locations in the CNS in *** chemical nature of the fibres,which connect the two eyes in ***,is neither serotoninergic nor FMRF-amidergic.

关键词： Gastropoda Nervous system Retina visual projections Retrograde transport Immunocytochemistry Neurotransmitters

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Modern methods of underground hydromechanics with applications to reservoir engineering

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Journal of Hydrodynamics 2016年第6期28卷 937-946页

作者： Hua XIANG valery v.KADET Department of Petroleum and Underground Hydromechanics Gubkin Russian State University of Oil and Gas

In the report the basic principles of new approach to the study of transport processes in porous medium are represented. The ＂percolation＂ approach has arisen as an attempt to overcome the traditional phenomenological approach in the underground hydromechanics, based on the assumption of continuity of saturated porous media, which does not allow to explain and to model a number of effects arising from the fluids flow in porous media. The results obtained are very interesting not only from the scientific point of view but as the scientific basis for a number of enhanced oil recovery technologies.

关键词： fluid flow in porous media percolation theory relative phase permeability oil field development low salinity waterflooding

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Afferent and efferent pathways in the visual system of the freshwater snail Planorbarius corneus

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Zoological Research 2011年第4期32卷 403-420页

作者： Oksana P Tuchina valery v.zhukov victor Benno Meyer-Rochow School of Engineering and Science Jacobs UniversityBremen D-28759Germany Department of Agricultural and Soil Ecology Faculty of Bioresources and Natural UsageKaliningrad State Technical UniversityKaliningrad 236000Russia

Afferent and efferent neural elements of the retina and central ganglia in the freshwater snail Planorbarius corneus were labelled using retrograde transport of neurobiotin through the optic *** of at least some photoreceptor cells become direct contributors to the optic nerve as no synaptic junctions could be *** processes enter the cerebral ganglion and form a dense bundle of thin afferent fibres,the so-called optical *** neurons were revealed in all ganglia,except the buccal *** of the ascending axons branch in the cerebral ganglia,cross the cerebro-cerebral commissure,reach the contralateral eye and form arborizations in the eye *** efferent neurons send axons to different peripheral nerves as well：***,pallialis dexter,pallialis sinister internus et ***-and FMRF-amide-ergic fibres were revealed in the optic *** fibres belong to those central neurons which send their axons to the ipsilateral eye *** form abundant varicoses in the eye cup and nuclear layer of the retina,and possibly help to regulate retinal sensitivity to light.

关键词： Gastropoda Nervous system Eye Retrograde transport Serotonin FMRF-amide

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Advances in small animal mesentery models for in vivo flow cytometry,dynamic microscopy,and drug screening

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World Journal of Gastroenterology 2007年第2期13卷 192-218页

作者： Ekaterina I Galanzha valery v Tuchin vladimir P Zharov Philips Classic Laser Laboratories University of Arkansas for Medical Sciences (UAMS) Little Rock AR United States Department of Optics and Biomedical Physics Research-Educational Institute of Optics and Biophotonics Saratov State University Saratov Russia Department of Optics and Biomedical Physics Research-Educational Institute of Optics and Biophotonics Saratov State University Saratov Russia Philips Classic Laser Laboratories University of Arkansas for Medical Sciences (UAMS) Little Rock AR United States

Using animal mesentery with intravital optical microscopy is a well-established experimental model for studying blood and lymph microcirculation in vivo. Recent advances in cell biology and optical techniques provide the basis for extending this model for new applications, which should generate significantly improved experimental data. This review summarizes the achievements in this specific area, including in vivo label-free blood and lymph photothermal flow cytometry, super-sensitive fluorescence image cytometry, light scattering and speckle flow cytometry, microvessel dynamic microscopy, infrared (IR) angiography, and high-speed imaging of individual cells in fast flow. The capabilities of these techniques, using the rat mesentery model, were demonstrated in various studies; e.g., real-time quantitative detection of circulating and migrating individual blood and cancer cells, studies on vascular dynamics with a focus on lymphatics under normal conditions and under different interventions (e.g. lasers, drugs, nicotine), assessment of lymphatic disturbances from experimental lymphedema, monitoring cell traffic between blood and lymph systems, and high-speed imaging of cell transient deformability in flow. In particular, the obtained results demonstrated that individual cell transportation in living organisms depends on cell type (e.g., normal blood or leukemic cells), the cell’s functional state (e.g., live, apoptotic, or necrotic), and the functional status of the organism. Possible future applications, including in vivo early diagnosis and prevention of disease, monitoring immune response and apoptosis, chemo- and radio-sensitivity tests, and drug screening, are also discussed.

关键词： Lymph microcirculation Transmission digital microscopy Rat mesentery Flow cytometry Photothermal technique

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Shedding light on biology and healthcare--preface to the special issue on Biomedical Optics

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Light(Science & Applications) 2022年第7期11卷 1315-1317页

作者： Peng Xi Xunbin Wei Junle Qu valery v.Tuchin Department of Biomedical Engineering College of Future TechnologyPeking University100871BeijingChina Department of Biomedical Engineering Peking University100081BeijingChina Center for Biomedical Optics and Photonics(CBOP)&College of Physics and Optoelectronic Engineering Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of EducationShenzhen University518060ShenzhenChina Saratov State University 83 Astrakhanskaya str.Saratov410012Russia

During the past decade,there has been an explosion in the development of novel optical techniques in biomedical research and clinical *** progress has been made in optical imaging and detection to provide necessary biological information for disease diagnosis and in-depth understanding of biological ***,recent advances integrating laser technology with biomarkers have enabled novel diagnostic and treatment approaches for different types of diseases.

关键词： optical integrating diagnosis

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OPTICAL PROPERTIES OF SKIN,SUBCUTANEOUS,AND MUSCLE TISSUES:A REvIEW

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Journal of Innovative Optical Health Sciences 2011年第1期4卷 9-38页

作者： ALEXEY N.BASHKATOv ELINA A.GENINA valery v.TUCHIN Institute of Optics and Biophotonics Saratov State University Saratov 410012Russia Institute of Precise Mechanics and Control of RAS Saratov 410028Russia

The development of optical methods in modern medicine in the areas of diagnostics,therapy,and surgery has stimulated the investigation of optical properties of various biological tissues,since the efficacy of laser treatment depends on the photon propagation and fluence rate distribution within irradiated *** this work,an overview of published absorption and scattering properties of skin and subcutaneous tissues measured in wide wavelength range is *** principles of measurements of the tissue optical properties and techniques used for processing of the measured data are outlined.

关键词： Absorption coefficient scattering coefficient anisotropy factor reduced scattering coefficient refractive index

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INTRODUCTION:SPECIAL ISSUE ON ADvANCES IN BIOPHOTONICS AND BIOMEDICAL OPTICS-PART I

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Journal of Innovative Optical Health Sciences 2013年第2期6卷 16-17页

作者： Dan Zhu valery v.Tuchin Qingming Luo Huazhong University of Science and Technology WuhanP.R.China Saratov State University SaratovRussia

The 5th Russian-Chinese Workshop on Biophotonics and Biomedical Optics was hosted in Saratov,Russia on 26-28,September,*** bilateral Workshop brought together both Russian and Chinese scientists,engineers and clinical researchers from a variety of disciplines engaged in applying optical science,photonics and imaging technologies to problems in biology and *** the W orkshop,2 plenary lectures,11 invited presentations,4 oral presentations and 13 poster reports were presented.A special Internet session with 5 presentations-1 plenary,2 invited,and 2 posters was also *** special issue selects some papers from the attendees,and is made up of 12 original research articles and one *** articles will be presented in vol.6 No.1 of JIOHS,while the remaining five articles will be presented in vol.6 No.2.

关键词： Russian photonics engineer

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FOREWORD

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Journal of Innovative Optical Health Sciences 2009年第1期2卷 I0001-I0002页

作者： Elina A.Genina Kirill v.Larin valery v.Tuchin Research-Educational Institute of Optics and Biophotonics Saratov State University Saratov Russia Department of Biomedical Engineering University of Houston Houston USA Research-Educational Institute of Optics and Biophotonics Saratov State University Institute of Precise Mechanics and Control RAS Saratov Russia

Special Issue Optical Technologies in the Study of Tissues and Biological Fluids We are pleased to present this special issue of JIOHS,which focuses on optical technologies in the study of tissues and biological *** selected papers were presented during Saratov Fall Meeting—XII International School for Junior Scientists and Students on Optics,Laser Physics and Biophotonics(September 23–26,2008,Saratov,Russia)in the framework of the following workshops:“Optical Technologies in Biophysics and Medicine,”“Nanostructures and Nanoparticles,”“Microscopic and Low-Coherence Methods in Biomedical Applications,”and“Internet Biophotonics.”All eight papers in this special issue are research papers.

关键词： Junior photonics Russia

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Foreword to the Special Issue on Optical Technologies in Biophysics and Medicine

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Journal of Innovative Optical Health Sciences 2015年第3期8卷 1-2页

作者： Elina A.Genina Dan Zhu valery v.Tuchin Research-Educational Institute of Optics and Biophotonics Saratov State University SaratovRussia Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology(HUST)Wuhan P.R.China Research-Educational Institute of Optics and Biophotonics Saratov State University Institute of Precise Mechanics and Control RAS Saratov Russia

We are pleased to present the third issue of JIOHS,which focuses on optical technologies of diagnosticsand therapy,These are selected papers presented during Saratov Fall Meeting,1t International Sym-posium on Optics and Biophotonics(September 24-28,2013,Saratov,Russia)in the framework of the Workshops:"Optical Technologies in Biophysics_and Medicine,"Nanobiophotonics,"and"Internet Biophotonics."

关键词： Biophys ics photonics

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Evolution of metabolic scaling among the tetrapod:effect of phylogeny,the geologic time of class formation,and uniformity of species within a class

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Integrative Zoology 2022年第5期17卷 904-917页

作者： valery M.GAvRILOv Tatiana B.GOLUBEvA Andrey v.BUSHUEv Department of vertebrate Zoology M.V.Lomonosov Moscow State UniversityMoscowRussia Zvenigorod Biological Station M.V.Lomonosov Moscow State UniversityMoscowRussia

The metabolic scaling in the animal has been discussed for over 90 years,but no consensus has been *** analysis of 2126 species of vertebrates reveals a signiﬁcant allometric exponent *** show that classes of terrestrial vertebrates exhibit the evolution of metabolic *** the allometric coefﬁcient“a”and the allometric exponent“b”change naturally,but differently depending on the geological time of group *** allometric coefﬁcient“a”shows the measure of the evolutionary development of systems that forms resting metabolism in *** classes,such as birds and mammals,have a metabolic rate that is in an order of magnitude higher than that in ectothermic classes,including amphibians and *** the terrestrial vertebrate phylogeny,weﬁnd that the metabolic scaling is characterized by 3 main allometric exponent values:b=3/4(mammals),b>3/4(ectotherms,such as amphibians and reptiles),and bvolution of *** scaling factor decreases depending on both the external design and the size(birds vs mammals)of the *** metabolic rate and uniformity of species within a class increase as the geological start date of for-mation of the class approaches the present *** higher the mass-speciﬁc standard metabolic rate in the class,the slower metabolic rate grows with increasing body size in this *** results lay the groundwork for further exploration of the evolutionary and ecological aspects of the development of metabolic scaling in animals.

关键词： geological time metabolic rate scaling

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