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Factors associated with trabecular bone score in postmenopausal women with type 2 diabetes and normal bone mineral density

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World Journal of Diabetes 2022年第7期13卷 553-565页

作者： olga N Fazullina Anton I Korbut vadim v Klimontov Laboratory of Endocrinology Research Institute of Clinical and Experimental Lymphology-Branch of the Institute of Cytology and GeneticsSiberian Branch of Russian Academy of SciencesNovosibirsk 630060Russia

BACKGROUND Osteoporosis and type 2 diabetes(T2D)have been recognized as a widespread comorbidity leading to excess mortality and an enormous healthcare *** T2D,bone mineral density(BMD)may underestimate the risk of low-energy fractures as bone quality is *** was hypothesized that a decrease in the trabecular bone score(TBS),a parameter assessing bone microarchitecture,may be an early marker of impaired bone health in women with *** To identify clinical and body composition parameters that affect TBS in postmenopausal women with T2D and normal *** A non-interventional cross-sectional comparative study was *** eligible subjects were screened at tertiary referral *** women with T2D,aged 50-75 years,with no established risk factors for secondary osteoporosis,were ***,TBS and body composition parameters were assessed by dual-energy X-ray *** women with normal BMD,a wide range of anthropometric,general and diabetes-related clinical and laboratory parameters were evaluated as risk factors for TBS decrease using univariate and multivariate regression analysis and analysis of receiver operating characteristic(ROC)*** Three hundred twelve women were initially screened,176 of them met the inclusion criteria and underwent dual X-ray *** with reduced BMD were subsequently excluded;96 women with normal BMD were included in final *** them,43 women(44.8%)showed decreased TBS values(≤1.31).Women with TBS≤1.31 were taller and had a lower body mass index(BMI)when compared to those with normal TBS(Р=0.008 and P=0.007 respectively).No significant differences in HbA1c,renal function,calcium,phosphorus,alkaline phosphatase,PTH and 25(ОН)D levels were *** a model of multivariate linear regression analysis,TBS was positively associated with gynoid fat mass,whereas the height and androgen fat mass were associated negatively(all P<0.001).In a multiple logistic regres

关键词： Diabetes Osteoporosis Bone mineral density Trabecular bone score Obesity Body composition

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Processing Methods of Alkaline Hydrolysate from Rice Husk

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Rice science 2017年第4期24卷 235-240页

作者： olga D.AREFIevA Liudmila A.ZEMNUKHOvA Anastasia A.KOvSHUN Anna v.KOvEKHOvA Far Eastern Federal University Vladivostok 690950Russian Federation Institute of Chemistry Far-Eastern BranchRussian Academy of SciencesVladivostok 690022Russian Federation

This paper devoted to finding processing methods of alkaline hydrolysate produced from rice husk pre-extraction, and discusses alkaline hydrolysate processing schemed and disengagement of some products： amorphous silica of various quality, alkaline lignin, and water and alkaline extraction polysaccharides. Silica samples were characterized： crude （air-dried）, burnt （no preliminary water treatment）, washed in distilled water, and washed in distilled water and burnt. Waste water parameters upon the extraction of solids from alkaline hydrolysate dropped a few dozens or thousand times depending on the applied processing method. Color decreased a few thousand times, turbidity was virtually eliminated, chemical oxygen demanded about 20–136 times; polyphenols content might decrease 50% or be virtually eliminated. The most prospective scheme obtained the two following solid products from rice husk alkaline hydrolysate： amorphous silica and alkaline extraction polysaccharide. Chemical oxygen demand of the remaining waste water decreased about 140 times compared to the silica-free solution.

关键词： rice husk alkaline hydrolysate silica lignin polysaccharide

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3D model of Svecofennian Accretionary Orogen and Karelia Craton based on geology,reflection seismics,magnetotellurics and density modelling:Geodynamic speculations

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Geoscience Frontiers 2020年第3期11卷 999-1023页

作者： Michael v.Mints victor N.Glaznev olga M.Muravina Elena Yu Sokolova Geological Institute RASMoscowRussia voronezh State University VoronezhRussia Schmidt Institute of Physics of the Earth RASMoscowRussia All-Russian Research Geological Oil Institute MoscowRussia

A 3D model of deep crustal structure of the Archaean Karelia Craton and late Palaeoproterozoic Svecofennian Accretionary Orogen including the boundary zone is *** model is based on the combination of data from geological mapping and reflection seismic studies,along profiles 1-EU,4 B,FIRE-1-2 a-2 and FIRE-3-3 a,and uses results of magnetotelluric soundings in southern Finland and northern Karelia.A seismogeological model of the crust and crust-mantle boundary is compared with a model of subhorizontal velocity-density layering of the *** TTG-type crust of the Palaeoarchaean and Mesoarchaean microcontinents within the Karelia Craton and the Belomorian Province are separated by gently dipping greenstone belts,at least some of which are *** structure of the crust was determined mainly by Palaeoproterozoic tectonism in the intracontinental settings modified by a strong collisional compression at the end of the *** insights into structure,origin and evolution of the Svecofennian Orogen are *** accretionary complex is characterized by inclined tectonic layering:the tectonic sheets,~15 km thick,are composed of volcanic-sedimentary rocks,including electro-conductive graphite-bearing sedimentary rocks,and electro-resistive granitoids,which plunge monotonously and consecutively *** reaching the level of the lower crust,the tectonic sheets of the accretionary complex lose their distinct *** the seismic reflection pattern they are replaced by a uniform acoustically translucent medium,where separate sheets can only be traced *** crust-mantle boundary bears a diffuse character:the transition from crust to mantle is recorded by the disappearance of the vaguely drawn boundaries of the tectonic sheets and in the gradual transition of acoustically homogeneous and translucent lower crust into transparent *** the effect of endogenic heat flow,the accretionary complex underwent high-temperatu

关键词： Reflection seismics Magnetotellurics Svecofennian accretionary Orogen Svecofennian Ocean 3D crustal model velocity-density layering

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Convective Instability and Appearance of Structured Flows for Diffusion in Multicomponent Gas Mixtures

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Transactions of Nanjing University of Aeronautics and Astronautics 2014年第2期31卷 142-146页

作者： vladimir N. Kossov~ olga v. Fedorenko Yelena A. Dyachenko Kazakh National Pedagogical University Almaty 050100 Republic of Kazakhstan Institute of Experimental and Theoretical Physics al-Farabi Kazakh National University Almaty 050038 Republic of Kazakhstan Kazakh Academy of Transport and Communications Names after M. Tynyshpayev Almaty 050012 Republic of Kazakhstan

The main objective of this article is to investigate the behavior of gaseous systems with two and more independent gradients or thermodynamic forces exhibiting complicated behavior,when the convective flows *** existence of structural formations in these systems is shown by the schlieren method and the fast-response *** linear analysis of stability can explain reasons of the appearance of convective instability in multicomponent gas mixtures.

关键词： diffusion instability of mechanical equilibrium theory of stability partial Rayleigh numbers

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Repellent effect of synanthropic house mouse urine odor on small forest mammals

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Current Zoology 2023年第3期69卷 315-323页

作者： Igor A.Zhigarev vasiliy v.Alpatov Dmitry A.Shitikov Maria v.Nekrasova olga G.Alekseeva Elena v.Kotenkova Department of Zoology and Ecology Institute of Biology and ChemistryMoscow Pedagogical State University129164 Kibalchicha Str.6/3MoscowRussia Laboratory for Behaviour and Behavioural Ecology of Mammals A.N.Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences119071 Leninsky prospect33MoscowRussia Department of Zoology Ecology and Nature ConservationK.I.Skryabin Moscow State Academy of Veterinary Medicine and Biotechnology109472 Skrvabin Str.23MoscowRussia

In this study,we examined the effect of synanthropic house mouse(Mus musculus)urine odor on catching probability of small mammals to live *** conducted a series of field experiments in August 2016 and 2017 in a natural forests of the northwestern Moscow Region(Russia).Small mammals were trapped at two 4-ha fields using capture-mark-recapture technique by setting 200 live traps(100 points,2 traps per point)within each *** trap in each pair was odorless(control)with bait only,whereas the other one was odor-baited with 20μL of the urine of a synanthropic house *** analysis was based on the data collected from 2 rodent species(bank vole Myodes glareolus,herb field mouse Apodemus uralensis)and 3 shrew species(common shrew Sorex araneus,Laxmann’s shrew Sorex caecutiens,and Eurasian pygmy shrew Sorex minutus).As a result,only bank voles significantly avoided odor-baited live *** generalized linear mixed models,we showed that the choice of a trap by bank voles depended on their age,whereas the probability of repeated capture to a certain live trap was related to their prior *** discuss the possible role of components of synanthropic house mouse urine in the population management of exoanthropic small mammals.

关键词： field experiment Mus musculus olfactory cues repellent response to traps small mammals

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Passive vectoring of entomopathogenic fungus Beauveria bassiana among the wax moth Galleria mellonella larvae by the ectoparasitoid Habrobracon hebetor females

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Insect Science 2018年第4期25卷 643-654页

作者： vadim Yu. Kryukov Natalia A. Kryukova Maksim v. Tyurin olga N. Yaroslavtseva viktor v. Glupov Institute of Systematics and Ecology of Animals Siberian Branch of Russian Academy of Science Novosibirsk Russia

Females of the ectoparasitoid Habrobracon hebetor attack and envenomate numerous host individuals during oviposition. The vectoring of the entomopathogenic fungus Beauveria bassiana during the adhesion stage by ectoparasitoid females among the wax moth larvae Galleria mellonella was explored under laboratory conditions. vectoring occurred both from infected parasitoids to wax moth larvae and from infected to healthy wax moth larvae by parasitoids. The efficacy of vectoring in both cases was dose dependent. Parasitoid females were unable to recognize infected larvae in a labyrinth test. In addition, the presence of H. hebetor females significantly （1.5-13 fold） increased the mycoses level in clusters of G. mellonella, with 40% of the larvae infected with ftmgal conidia. Envenomation by H. hebetor increased conidia germination on the cuticles of the wax moth larvae by 4.4 fold. An enhanced germination rate （2 fold） was registered in the n- hexane epicuticular extract of envenomated larvae compared to that of healthy larvae. Both envenomation and mycoses enhanced the phenoloxidase （PO） activity in the integument of G. mellonella and, in contrast, decreased the encapsulation rate in hemolymphs. We hypothesize that changes in the integument property and inhibition of cellular immunity provide the highest infection efficacy of entomopathogenic fungi with H. hebetor.

关键词： Galleria mellonella immunity integuments mycoses parasitoid vectoring

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Expansion of Juniperus sibirica *** a response to climate change and associated effect on mountain tundra vegetation in the Northern Urals

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Journal of Mountain Science 2020年第10期17卷 2339-2353页

作者： Andrey A.GRIGORIev Yulia v.SHALAUMOvA olga v.EROKHINA Svetlana Yu.SOKOvNINA Elizaveta I.vATOLINA Martin WILMKING Institute of Plant and Animal Ecology UB RAS Laboratory of Geoinformation TechnologyEkaterinburgRussia Institute of Industrial Ecology UB RAS Laboratory of Mathematical Modeling in Ecology and MedicineEkaterinburgRussia Institute of Plant and Animal Ecology UB RAS Laboratory of Vegetation and Mycobiota BiodiversityEkaterinburgRussia Institute of Plant and Animal Ecology UB RAS Laboratory of Dynamics of Arctic EcosystemsLabytnangiRussia Department of Forest Taxation and Forest Management Institute of Forest and Nature ManagementUral state Forest Engineering UniversityEkaterinburgRussia Institute for Botany and Landscape Ecology Greifswald UniversityGreifswaldGermany

Shrub expansion into arctic and alpine tundra is one of the prominent vegetation changes currently *** studied the expansion of shrub vegetation into high elevation tundra in the Kvarkush Range of the Northern Ural mountains,*** structure analysis of the dominant shrub Juniperus sibirica *** to support ongoing upslope advance of shrubs,a process particularly active in the second half of the 20 th *** found a close connection between the expansion of shrub vegetation and the general change in climatic conditions of the cold season(months with mean airtemperature below 0°Сfrom November to March).In general,the greatest influence on the distribution of *** is exerted by the climate conditions of the beginning(November-January)and the end(March)of the cold *** increasing elevation,the correlation coefficients between the establishment of *** shrubs and the precipitation of the beginning of the cold season increased,and reached maximum values at the top elevation level of the study ***,the upwards shift of *** into typical mountain tundra does not lead to changes in the ecological structure of vegetation at this stage,but simply a decrease in the area of mountain tundra.

关键词： Juniperus sibirica Expansion Tundra vegetation Plant communities Climate changes Northern Ural mountains

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Finite Groups Isospectral to Simple Groups

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Communications in Mathematics and Statistics 2023年第2期11卷 169-194页

作者： Maria A.Grechkoseeva victor D.Mazurov Wujie Shi Andrey v.vasil’ev Nanying Yang Sobolev Institute of Mathematics Koptyuga 4NovosibirskRussia 630090 Department of Mathematics Chongqing University of Arts and SciencesChongqing 402160People’s Republic of China School of Mathematics Suzhou UniversitySuzhou 215006People’s Republic of China School of Science Hainan UniversityHaikou 570228HainanPeople’s Republic of China School of Science Jiangnan UniversityWuxi 214122People’s Republic of China

The spectrum of a finite group is the set of element orders of this *** main goal of this paper is to survey results concerning recognition of finite simple groups by spectrum,in particular,to list all finite simple g... 详细信息

关键词： Finite group Simple group Element order Spectrum Recognition by spectrum

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Hot spots of DNA double-strand breaks and genomic contacts of human rDNA units are involved in epigenetic regulation

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分子细胞生物学报:英文版 2015年第4期7卷 366-382页

作者： Nickolai A.Tchurikov Daria M.Fedoseeva Dmitri v.Sosin Anastasia v.Snezhkina Nataliya v.Melnikova Anna v.Kudryavtseva Yuri v.Kravatsky olga v.Kretova Department of Epigenetic Mechanisms of Gene Expression Regulation Engelhardt Institute of Molecular BiologyMoscow 119334Russia Group of Postgenomic Studies Engelhardt Institute of Molecular BiologyMoscow 119334Russia Laboratory of DNA-Protein Interactions Engelhardt Institute of Molecular BiologyMoscow 119334Russia

DNA double-strand breaks(DSBs)are involved in many cellular mechanisms,including replication,transcription,and genome *** recent observation that hot spots of DSBs in human chromosomes delimit DNA domains that possess coordinately expressed genes suggests a strong relationship between the organization of transcription patterns and hot spots of *** this study,we performed mapping of hot spots of DSBs in a human 43-kb ribosomal DNA(rDNA)repeated *** observed that rDNA units corresponded to the most fragile sites in human chromosomes and that these units possessed at least nine specific regions containing clusters of extremely frequently occurring DSBs,which were located exclusively in non-coding intergenic spacer(IGS)*** hot spots of DSBs corresponded to only a specific subset of DNase-hypersensitive sites,and coincided with CTCF,PARP1,and HNRNPA2B1 binding sites,and H3K4me3 *** rDNA-4C data indicate that the regions of IGS containing the hot spots of DSBs often form contacts with specific regions in different chromosomes,including the pericentromeric regions,as well as regions that are characterized by H3K27ac and H3K4me3 marks,CTCF binding sites,ChIA-PET and RIP signals,and high levels of *** data suggest a strong link between chromosome breakage and several different mechanisms of epigenetic regulation of gene expression.

关键词： double-strand breaks fragile sites rDNA IGS PARP1 HNRNPA2B1 4C

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Does ADS 9346 have a low-mass companion?

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Research in Astronomy and Astrophysics 2021年第11期21卷 202-212页

作者： olga v.Kiyaeva Maxim Yu.Khovritchev Agrippina M.Kulikova Natalya v.Narizhnaya Tatyana A.vasilyeva Arina A.Apetyan Central Astronomical Observatory Russian Academy of Sciences65/1 Pulkovskoye ChausseeSt.Petersburg196140Russia

Based on the photographic and CCD observations of the relative motion of the A and B components of the binary system ADS 9346 obtained with the 26-inch refractor of Pulkovo Observatory during 1979–2019,we discover an invisible companion associated with star *** of the ephemerides with the positional and spectroscopic observations allowed us to calculate the preliminary orbit of the photocenter(P=15 yr).The minimal mass of the companion is approximately 0.13 *** existence of the invisible low-mass companion is implied by the IR-excess based on IRAS *** confirm this,additional observations of the radial velocity near the periastron need to be carried out.

关键词： (stars:)binaries:visual stars:low-mass stars:individual(ADS 9346)

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