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Dominance of transposable element‑related satDNAs results in great complexity of“satDNA library”and invokes the extension towards“repetitive DNA library”

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Marine Life Science & Technology 2024年第2期6卷 236-251页

作者： Monika Tunjić‑Cvitanić Daniel García‑Souto Juan J.Pasantes EvaŠatović‑Vukšić division of Molecular Biology Ruđer BoškovićInstitute10000 ZagrebCroatia Genomes and Disease Centre for Research in Molecular Medicine and Chronic Diseases(CIMUS)Universidade de Santiago de Compostela15706 Santiago de CompostelaSpain Department of zoology Genetics and Physical AnthropologyUniversidade de Santiago de Compostela15706 Santiago de CompostelaSpain Centro de Investigación Mariña Dpto de BioquímicaXenética e InmunoloxíaUniversidade de Vigo36310 VigoSpain

Research on bivalves is fast-growing,including genome-wide analyses and genome *** characteristics qualify oysters as a valuable model to explore repetitive DNA sequences and their genome *** we char-acterize the satellitomes of five species in the family Ostreidae(Crassostrea angulata,***,***,***,Ostrea edulis),revealing a substantial number of satellite DNAs(satDNAs)per genome(ranging between 33 and 61)and peculiarities in the composition of their *** satDNAs were either associated to or derived from transposable elements,displaying a scarcity of transposable element-unrelated satDNAs in these *** to the non-conventional satellitome constitution and dominance of Helitron-associated satDNAs,comparative satellitomics demanded more in-depth analyses than standardly *** analyses(including ***,the first bivalve species with a defined satellitome)revealed that 13 satDNAs occur in all six oyster genomes,with Cg170/HindIII satDNA being the most abundant in all of *** the“satDNA library model”highlighted the necessity to adjust this term when studying tandem repeat evolution in organisms with such *** repetitive sequences with potential variation in the organizational form and repeat-type affiliation are examined across related species,the introduction of the terms“TE library”and“repetitive DNA library”becomes essential.

关键词： Satellitome Comparative satellitomics Helitron Bivalves “Dark matter of the genome”

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Effect of Mushroom Extract Hericium erinaceus on Spatial Memory and Morphology of Neurons in the CA1 and CA3 Regions of the Hippocampus in Ovariectomized Rats

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Open Journal of Veterinary Medicine 2024年第7期14卷 163-179页

作者： Lucia Garcia-Delgado Mariana Monserrath Verdía-Venegas Jacinto Bañuelos-Pineda Esther Albarrán-Rodríguez Guillermo Nolasco-Rodriguez José Ricardo Cuellar-Pérez Sergio Fausto-Guerra Manuel Rosales-Cortés Master in Behavioral Sciences Institute of Neurosciences University of Guadalajara Zapopan Mexico Department of Veterinary Medicine Division of Veterinary Sciences CUCBA University of Guadalajara Zapopan Mexico Botany and zoology Laboratory CUCBA University of Guadalajara Zapopan Mexico

Various studies indicate that low levels of estradiol negatively impact cognitive abilities. Extracts from the fungus Hericium erinaceus (HE) contain bioactive components that promote the proper functioning of the nervous system and potential effects on protection against neurodegenerative diseases, including dementia and motor dysfunctions. The objective was to evaluate the effects of the administration of the HE mushroom extract on visuospatial memory and morphology of neurons in the CA1 and CA3 regions of the hippocampus in ovariectomized rats. 40 young Wistar rats weighing 90 ± 10 g BW were used, which were distributed into four groups of 10 animals;Control Group, non-ovariectomized and untreated rats;Group E2, ovariectomized rats treated with estradiol (2 μg/kg/body weight);Group HE, ovariectomized rats treated with the extract of the fungus Hericium erinaceus (0.5 mg/kg body weight) and Group Ovx/ST, ovariectomized rats, without treatment. The animals were tested in the Barnes and Open Field maze, then they were sacrificed, and their brains were obtained to perform a histological analysis of neuronal morphology in the CA1 and CA3 areas of the hippocampus. The most outstanding results showed that the Ovx/ST group recorded the longest time to arrive at the escape box and stay in the Barnes maze. A correlation was observed between neuronal damage and function;in the groups that did not present satisfactory performance in the maze tests, morphological alterations were identified such as the presence of some neuronal somata with degeneration characteristics such as pyknosis, nuclear basophilia and shrinkage of the cells. Its soma, as well as a decrease in the nuclear area of CA1 and CA3 neurons. It is concluded that the fungus Hericium erinaceus exerted a neuroprotective effect on the neuronal bodies of the hippocampus, associated with better performance in the visuospatial recognition memory test.

关键词： Ovariectomized Rats Ovarian Hypofunction Estradiol Hericium erinaceus Barnes Circular Labyrinth Open Field Labyrinth

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Infanticide in golden snub-nosed monkeys with multilevel society

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Current zoology 2024年第2期70卷 273-275页

作者： Wei Li Shixuan Dong Fei Niu Nianlong Li Ziyi Su Chengliang Wang Kang Huang Haitao Zhao Ruliang Pan Pei Zhang Baoguo Li Shaanxi Key Laboratory for Animal Conservation College of Life SciencesNorthwest UniversityXi'an 710069China Shaanxi Key Laboratory for Animal Conservation Shaanxi Institute of ZoologyXi'an 710032China School of Anatomy Physiology and Human BiologyThe University of Western AustraliaWestern Australia 6907Australia International Centre of Biodiversity and Primate Conservation Dali UniversityDali 671003China division of ExpressiveTherapies.Lesley University.Cambridae.MA02138.USA

Infanticide,killing unweaned offspring in conspecifics,occurs widely among mammals,such as rodents,ungulates,and carnivores,especially in primates(Lukas and Huchard 2014).Such scenarios are often triggered by intruders that have replaced the former dominant males in nonhuman primates(Borries 1997).It has widely been viewed that infanticide is one of the solutions of sexually driven evolutionary selection:males kill infants to end lactational amenorrhea of the victim's mothers,forcing them to return to estrus and providing infanticidal males with the opportunities to sire their new offspring(Hrdy 1979).There is a broad spectrum regarding the patterns and mechanisms causing such events,referring to alternative breeding behaviors and mating systems-monogamy,polyandry,polygyny,and promiscuity(Qi et al.2020).

关键词： primates breeding mother

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Genetically modified pigs:Emerging animal models for hereditary hearing loss

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Zoological Research 2024年第2期45卷 284-291页

作者： Xiao Wang Tian-Xia Liu Ying Zhang Liang-Wei Xu Shuo-Long Yuan A-Long Cui Wei-Wei Guo Yan-Fang Wang Shi-Ming Yang Jian-Guo Zhao State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Savaid Medical School University of Chinese Academy of SciencesBeijing 100049China Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China Department of Otolaryngology-Head and Neck Surgery Institute of OtolaryngologyChinese PLA General HospitalBeijing 100853China division of Life Sciences and Medicine University of Science and Technology of ChinaHefeiAnhui 230022China State Key Laboratory of Animal Biotech Breeding Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193China

Hereditary hearing loss(HHL),a genetic disorder that impairs auditory function,significantly affects quality of life and incurs substantial economic losses for *** investigate the underlying causes of HHL and evaluate therapeutic outcomes,appropriate animal models are *** have been extensively used as valuable large animal models in biomedical *** this review,we highlight the advantages of pig models in terms of ear anatomy,inner ear morphology,and electrophysiological characteristics,as well as recent advancements in the development of distinct genetically modified porcine models of hearing ***,we discuss the prospects,challenges,and recommendations regarding the use pig models in HHL ***,this review provides insights and perspectives for future studies on HHL using porcine models.

关键词： Pigs Animal models Hereditary hearing loss Genetic modification Inner ear

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Identification of FOXO1 as a geroprotector in human synovium through single-nucleus transcriptomic profiling

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Protein & Cell 2024年第6期15卷 441-459页

作者： Feifei Liu Yi Lu Xuebao Wang Shuhui Sun Huize Pan Min Wang Zehua Wang Weiqi Zhang Shuai Ma Guoqiang Sun Qun Chu Si Wang Jing Qu Guang-Hui Liu State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Sports Medicine Department Beijing Jishuitan HospitalCapital Medical UniversityBeijing 100035China State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China National Laboratory of Biomacromolecules Institute of BiophysicsChinese Academy of SciencesBeijing 100101China division of Life Sciences and Medicine School of Life SciencesUniversity of Science and Technology of ChinaHefei 230001China CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China The Fifth People’s Hospital of Chongqing Chongqing 400062China Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders Xuanwu Hospital Capital Medical UniversityBeijing 100053China Aging Translational Medicine Center International Center for Aging and CancerBeijing Municipal Geriatric Medical Research CenterXuanwu HospitalCapital Medical UniversityBeijing 100053China

The synovium,a thin layer of tissue that is adjacent to the joints and secretes synovial fluid,undergoes changes in aging that contribute to intense shoulder pain and other joint ***,the mechanism underlying human synovial aging remains poorly ***,we generated a comprehensive transcriptomic profile of synovial cells present in the subacromial synovium from young and aged *** delineating aging-related transcriptomic changes across different cell types and their associated regulatory networks,we identified two subsets of mesenchymal stromal cells(MSCs)in human synovium,which are lining and sublining MSCs,and found that angiogenesis and fibrosis-associated genes were upregulated whereas genes associated with cell adhesion and cartilage development were downregulated in aged ***,the specific cell-cell communications in aged synovium mirrors that of aging-related inflammation and tissue remodeling,including vascular hyperplasia and tissue *** particular,we identified forkhead box O1(FOXO1)as one of the major regulons for aging differentially expressed genes(DEGs)in synovial MSCs,and validated its downregulation in both lining and sublining MSC populations of the aged *** human FOXO1-depleted MSCs derived from human embryonic stem cells,we recapitulated the senescent phenotype observed in the subacromial synovium of aged *** data indicate an important role of FOXO1 in the regulation of human synovial ***,our study improves our understanding of synovial aging during joint degeneration,thereby informing the development of novel intervention strategies aimed at rejuvenating the aged joint.

关键词： FOXO1 degeneration inflammation

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Specialized springtail predation by Loricera beetles: An example of evolutionary stasis across the K-Pg extinction

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The Innovation 2024年第3期5卷 25-26页

作者： Yan-Da Li Erik Tihelka Michael SEngel Diying Huang Chenyang Cai State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China Department of Earth Sciences University of CambridgeCambridge CB23EQUK Bristol Palaeobiology Group School of Earth SciencesUniversity of BristolBristol BS81TQUK division of Invertebrate zoology American Museum of Natural HistoryNew YorkNY 10024-5192USA Facultad de Ciencias Biológicas Universidad Nacional Mayor de San MarcosLima 15081Perú Departamento de Entomología Museo de Historia NaturalUniversidad Nacional Mayor de San MarcosLima 15072Perú

Dear Editor,The Cretaceous-Paleogene(K-Pg)mass extinction precipitated one of the most profound restructurings of biodiversity in recent geological *** the extinction of many iconic groups,particularly the non-avian dinosaurs,there is emerging evidence that previously overlooked taxa experienced stark morphological and evolutionary *** this study,we report both adult and larva of beetles of the genus Loricera preserved in mid-Cretaceous Kachin amber(Figure 1),which display striking similarity to extant congeners,indicating a stasis of their specialized feeding behavior persisting at least 100 million years.

关键词： extinction Figure Cretaceous

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Prevalence of Malnutrition and Anaemia in Children ≤ 5 Years of Age in Some Conflict Hit Areas of Meme division of the South West Region of Cameroon

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Food and Nutrition Sciences 2024年第4期15卷 235-244页

作者： Asoba Gillian Nkeudem Ebong Fidelis Sameh Samuel Metuge Teh Rene Ning Ngede Laura Senge Sumbele Irene Ngole Department of Social Economy and Family Management Higher Technical Teachers’ Training College University of Buea Kumba Cameroon Department of zoology and Animal Physiology Faculty of Science University of Buea Buea Cameroon

Malnutrition refers to the deficiency, imbalances, or excesses in a person’s intake of energy or nutrients [1]. Khan defines anaemia as below level of Haemoglobin in red blood shown by a lower number of functioning red blood cells [2]. The crisis in the North West and South West Regions of Cameroon has led to several negative effects on children’s living conditions. There has been an increase in malnutrition and anaemia in the South West Region and Kumba in particular. The main objective of this study was “to examine the prevalence of malnutrition and anaemia in children ≤ 5 years of age in some conflict-hit areas of Meme division”. A descriptive cross-sectional study was conducted in 2023 from March to June. We recruited 200 children ≤ 5 years into the study from three hospitals. The regional hospital annex in Kumba, Presbyterian General Hospital Kumba and the Ntam Hospital in Kumba. Socio-demographic factors were assessed using questionnaire, nutritional status was assessed by the use anthropometric measurements and an auto haematology analyser was used to determine anaemia. The overall prevalence of malnutrition in the study area was 40.5%. The prevalence of malnutrition varied significantly (P < 0.001) with the study sites. The overall prevalence of anaemia in the study area was 70.5%. The prevalence of anaemia was not significantly associated with the study sites. The prevalence of Malnutrition and Anaemia in children ≤ 5 years of age is very high in the Kumba municipalities. This could be attributed to the ongoing crisis which has caused a lot of social migrations from rural areas to Urban areas which are safer.

关键词： Malnutrition Anaemia Prevalence Conflict Hit Areas

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The Effects of Different Feeding Practices on the Nutritional Status of Infants below 12 Months Old in the Kumba 1 Sub-division

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Food and Nutrition Sciences 2024年第5期15卷 336-350页

作者： Gillian Nkeudem Asoba Fidelis Sameh Ebong Samuel Metuge Etchu Kaptai Tabe Teh Rene Ning Sumbele Irene Ngole Department of Social Economy and Family Management Higher Technical Teachers&#8217 Training College University of Buea Kumba Cameroon Department of zoology and Animal Physiology Faculty of Science University of Buea Buea Cameroon

Appropriate feeding practices are important during infancy for good health, growth and development of infants and children. WHO revised its earlier recommendation of Exclusive Breastfeeding (EBF) of infants from 4 to 6 months of age to EBF until about 6 months of age, with the addition of complementary foods thereafter. This recommendation confirms that breast milk alone is sufficient to meet infants’ nutritional requirements for the first 6 months of life. The main objective of this study was to investigate the effect of various feeding practices on the Nutritional status of infants 0 - 12-month-old in the Kumba 1 Sub-division. A descriptive cross-sectional study was conducted from December 2019 to August 2020. A total of 341 nursing mothers and their infants 0 - 12 months of age were recruited. Socio-demographic factors and the different feeding habits of the children were assessed using a semi-structured questionnaire. Nutritional status was assessed using anthropometric measurements. The overall proportion of infants who exclusively breastfed for 6 months was 69.2% and those who were mix-fed were 30.8% in the study area. The overall prevalence of malnutrition in the population was 61.0%. Among the malnourished children, 53.1% were underweight, 19.6% were wasted and 10.0% were stunted. Though not significant, the prevalence of wasting (21.0%) and underweight (58.3%) was higher among Mix-Fed (MF) children when compared to their EBF counterparts. Feeding practices affected the nutritional status of the infants. Underweight and wasting were observed among infants on Complementary Feeding (CF), although some exclusively breast-fed infants were stunted. Hence, nursing mothers should try as much as possible to practice EBF as recommended by WHO and can practice CF when the child is above six months.

关键词： Exclusive Breastfeeding Complementary Feeding Feeding Practices Infants Malnutrition Nutritional Status Underweight Wasted Stunting

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Adult neurogenesis:a real hope or a delusion?

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Neural Regeneration Research 2024年第1期19卷 6-15页

作者： Ghulam Hussain Rabia Akram Haseeb Anwar Faiqa Sajid Tehreem Iman Hyung Soo Han Chand Raza Jose-Luis Gonzalez De Aguilar Neurochemicalbiology and Genetics Laboratory(NGL) Department of PhysiologyFaculty of Life SciencesGovernment College UniversityFaisalabadPunjabPakistan Department of Physiology School of MedicineClinical Omics InstituteKyungpook National UniversityDaeguKorea Department of zoology Faculty of Chemistry and Life SciencesGovernment College UniversityLahorePakistan INSERM U1118Mécanismes Centraux et Péripheriques de la NeurodégénérescenceStrasbourgFranceUniversitéde StrasbourgStrasbourgFrance

Adult neurogenesis,the process of creating new neurons,involves the coordinated division,migration,and differentiation of neural stem *** process is restricted to neurogenic niches located in two distinct areas of the brain:the subgranular zone of the dentate gyrus of the hippocampus and the subventricular zone of the lateral ventricle,where new neurons are generated and then migrate to the olfactory *** has been thought to occur only during the embryonic and early postnatal stages and to decline with age due to a continuous depletion of neural stem ***,recent years have seen tremendous progress in our understanding of adult brain neurogenesis,bridging the knowledge gap between embryonic and adult ***,we discuss the current status of adult brain neurogenesis in light of what we know about neural stem *** this notion,we talk about the importance of intra cellular signaling molecules in mobilizing endogenous neural stem cell prolife *** on the current understanding,we can declare that these molecules play a role in targeting neurogenesis in the mature ***,to achieve this goal,we need to avoid the undesired proliferation of neural stem cells by controlling the necessary checkpoints,which can lead to tumorigenesis and prove to be a curse instead of a blessing or hope.

关键词： adult neurogenesis aging brain-derived neurotrophic factor dentate gyrus hippocampus neural stem cells neurotrophic factors Notch oxidative stress stem cells subgranular zone

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Various Organic Nutrient Sources in Combinations with Inorganic Fertilizers Influence the Yield and Quality of Sweet Corn(Zea mays ***)in New Alluvial Soils of West Bengal,India

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 763-776页

作者： Anindita Das Kanu Murmu Biplab Mitra Pintoo Bandopadhyay Ritesh Kundu Moupiya Roy Saleh Alfarraj Mohammad Javed Ansari Marian Brestic Akbar Hossain Department of Agronomy School of Agricultural SciencesJIS UniversityKalyaniNadiaWest Bengal741235India Department of Agronomy Bidhan Chandra Krishi ViswavidyalayaMohanpurWest Bengal741252India Department of Agronomy Uttar Banga Krishi ViswavidyalayaCoochbeharWest Bengal736101India Office of The Assistant Director of Agriculture Gosaba BlockArampurSouth 24 ParganasWest Bengal743370India Department of Agricultural Statistics Bidhan Chandra Krishi ViswavidyalayaMohanpurWest Bengal741252India zoology Department College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia Department of Botany Hindu College Moradabad(Mahatma Jyotiba Phule Rohilkhand UniversityBareilly)MoradabadUttar Pradesh244001India Institute of Plant and Environmental Sciences Slovak University of AgricultureTr.A.Hlinku 2Nitra94901Slovak division of Soil Science Bangladesh Wheat and Maize Research InstituteDinajpur5200Bangladesh

Nutrient management plays a crucial role in the yield and quality of sweet corn.A field experiment was conducted in consecutive two kharif seasons in 2018 and 2019 to investigate the effect of various organic sources of nutrients in combination with inorganic sources on the yield and quality of sweet corn under new alluvial soils of West Bengal,*** were:T_(1):Control(without fertilizers);T_(2):100%recommended dose(RDF)of chemical fertilizers(CF)(RDF CF_(100%));T_(3):100%recommended dose of N(RDN)through vermicompost(VC)(RDN VC_(100%));T_(4):50 RDN through CF+50%RDN through VC(RDN CF_(50%)+RDN VC50%);T_(5):50%RDF through CF+50%RDN through organic source(OS)1,Soligro(Ascophyllum nodosum)granular(RDN CF_(50%)+RDN OS_(150%));T6:50%RDN through CF+50%RDN through OS 2,Bioenzyme(liquid)(RDN CF_(50%)+RDN OS250%);T7:50%RDN through CF+50%RDN through OS 3,Opteine(Ascophyllum nodosum)filtrate[RDN CF_(50%)+RDN OS350%];T8:50%RDN through VC+50%RDF through OS 1,Soligro(Ascophyllum nodosum)granular(RDN VC50%+RDN OS_(150%)).The OS of fertilizers were VC,SoliGro Gr(OS1)(Ascophyllum nodosum),Bioenzyme liquid(OS2),and Opteine(Ascophyllum nodosum)filtrate(OS3).The inorganic source was traditional CF applied at the RDF(150:75:75 kg ha^(−1) of N:P2O5:K2O).The VC was used to supply 100%RDN as one source or 50%RDN when combined with CF or *** fruit yield(10.75 and 10.79 t ha^(−1) in 2018 and 2019,respectively)was recorded when RDF was substituted through CF only,being statistically at par with 50%CF+50%VC on a nitrogen equivalent basis(9.92 and 10.00 t ha^(−1) in 2018 and 2019,respectively)and 100%VC(8.22 and 8.32 t ha^(−1) in 2018 and 2019,respectively).Compared to chemical sources of nutrients,VC-based treatments produced a larger percentage of large-size cob(>25 cm).The 100%VC increased antioxidant(8.35 and 8.45 mg g^(−1)),carotenoid(0.59 and 0.61 mg/100 g),and phenol(55.06 and 55.02 mg 100 g^(−1))content compared with its 50%dose in combination with other *** s

关键词： Biostimulants Ascophyllum nodosum crop quality crop yield sweet corn

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