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Identifying female phenotypes that promote behavioral isolation in a sexually dimorphic species of fish Etheostoma zonale

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Current Zoology 2021年第2期67卷 225-236页

作者： Natalie S.ROBERTS Tamra C.MENDELSON Department of biological Sciences University of Maryland Baltimore CountyBaltimoreMD21250USA

In sexually dimorphic species characterized by exaggerated male ornamentation,behavioral isola-tion is often attributed to female preferences for conspecific male ***,in a number of sexu-ally dimorphic species,male mate choice also results in behavioral *** many of these cases,the female traits that mediate species boundaries are *** in sexually dimorphic species typically lack many of the elaborate traits that are present in males and that are often used for taxonomic classification of *** a diverse and largely sexually dimorphic group of fishes called darters(Percidae:Etheostoma),male mate choice contributes to behavioral isolation be-tween a number of species;however,studies addressing which female traits males prefer are *** this study,we identified the dominant female pattern for two sympatric species,Etheostoma zonale and Etheostoma barrenense,using pattern energy analysis,and we used discriminate func-tion analysis to identify which aspects of female patterning can reliably classify *** then tested the role of female features in male mate choice for ***,by measuring male preference for computer animations displaying the identified(species specific)conspecific *** found that the region above the lateral line is important in mediating male mate preferences,with males spending a significantly greater proportion of time with animations exhibiting conspecific female patterning in this region than with animations exhibiting heterospecific female *** results suggest that the aspects of female phenotypes that are the target of male mate choice are different from the conspicuous male phenotypes that traditionally characterize species.

关键词： darters discriminant function analysis Etheostoma female phenotype male mate choice 3D animations

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Metabolic and physiological regulation of Chlorella sp.(Trebouxiophyceae, Chlorophyta) under nitrogen deprivation

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Journal of Oceanology and Limnology 2019年第1期37卷 186-198页

作者： YONG Wai-Kuan LIM Phaik-Eem VELLO Vejeysri SIM Kae-Shin ABDUL MAJID Nazia MUSTAFA Emienour Muzalina NIK SULAIMAN Nik Meriam LIEW Kan-Ern CHEN Brenna Jia-Tian PHANG Siew-Moi Institute of Ocean and Earth Sciences University of Malaya Institute of Graduate Studies University of Malaya Institute of biological Sciences Faculty of Science University of Malaya School of Fisheries and Aquaculture Sciences University of Malaysia Department of Chemical Engineering Faculty of Engineering University of Malaya Airbus group Malaysia Menara HLA Aerospace Malaysia Innovation Centre

A freshwater green microalgae Chlorella sp., UMACC344 was shown to produce high lipid content and has the potential to be used as feedstock for biofuel production. In this study, photosynthetic effciency, biochemical pro?les and non-targeted metabolic pro?ling were studied to compare between the nitrogen-replete and deplete conditions. Slowed growth, change in photosynthetic pigments and lowered photosynthetic effciency were observed in response to nitrogen deprivation. Biochemical pro?les of the cultures showed an increased level of carbohydrate, lipids and total fatty acids, while the total soluble protein content was lowered. A trend of fatty acid saturation was observed in the nitrogen-deplete culture with an increase in the level of saturated fatty acids especially C16:0 and C18:0, accompanied by a decrease in proportions of monounsaturated and polyunsaturated fatty acids. Fifty-nine metabolites, including amino acids, lipids, phytochemical compounds, vitamins and cofactors were signi?cantly dysregulated and annotated in this study. Pathway mapping analysis revealed a rewiring of metabolic pathways in the cells, particularly purine, carotenoid, nicotinate and nicotinamide, and amino acid metabolisms. Within the treatment period of nitrogen deprivation, the key processes involved were reshu ? ing of nitrogen from proteins and photosynthetic machinery, together with carbon repartitioning in carbohydrates and lipids.

关键词： metabolic profiling Chlorella sp. nitrogen stress lipid fatty acid

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Evaluation of repeated exposure systemic toxicity test of PVC with new plasticizer on rats via dual parenteral routes

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Regenerative Biomaterials 2018年第1期5卷 9-14页

作者： Li Hou Chunguang Fan Chenghu Liu Qiujin Qu ChunrenWang Yanping Shi Department of biological Evaluation Key Lab of Biological Evaluation of Medical DevicesShandong Provincial Inspection Center for Medical DevicesJinan 250101China Department of Biomaterials and Tissue Engineering National Institutes for Food and Drug Control of ChinaBeijing 100050China

Systemic toxicity caused by repeated exposure to both polar and nonpolar leachables of di(2-ethylhexyl)-1,2-cyclohexane plasticized polyvinyl chloride(PVC)was evaluated with dual routes of parenteral administration method on rats in the *** group and control group were designed by *** intravenous injection with 0.9%sodium chloride injection extracts and intraperitoneal injection with corn oil extracts were conducted to the experimental rats while tail intravenous injection with 0.9%sodium chloride Injection and intraperitoneal injection with corn oil were conducted to the control *** 14 days,blood specimens were collected for clinical pathology(hematology and clinical chemistry)*** organs were weighed and a histopathological examination was *** a result,compared with the control animals,there were no toxicity-related changes on the parameters *** results show that the rats do not show obvious systemic toxicity reaction caused by repeated exposure with dual routes of parenteral administration method on rats after administration with both polar and nonpolar exacts of di(2-ethylhexyl)-1,2-cyclohexane plasticized PVC simultaneously up for 14 days.

关键词： plasticized PVC repeated exposure systemic toxicity test dual routes of parenteral administration method

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Sex-dependent increase of movement activity in the freshwater isopod Asellus aquaticus following adaptation to a predator-free cave habitat

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Current Zoology 2023年第4期69卷 418-425页

作者： ELTE Eötvös Loránd University Hajriz Berisha Gergely Horváth Žiga Fišer Gergely Balázs Cene Fišer Gábor Herczeg Author Notes Behavioural Ecology group Department of Systematic Zoology and EcologyBiological InstituteELTE Eötvös Loránd UniversityPázmány Péter sétány 1/CBudapestHungary H-1117 ELKH-ELTE-MTM Integrative Ecology Research group Pázmány Péter sétány 1/CBudapestHungary H-1117 Department of Biology Biotechnical FacultyUniversity of LjubljanaJamnikarjeva 1011000 LjubljanaSlovenia

Populations experiencing negligible predation pressure are expected to evolve higher behavioral ***,when sexes have different expected benefits from high activity,the adaptive shift is expected to be ***,we compared movement activity of one cave(lack of predation)and three adjacent surface(high and diverse predation)populations of Asellus aquaticus,a freshwater isopod known for its independent colonization of several caves across *** predicted 1)higher activity in cave than in surface populations,with 2)the difference being more pronounced in males as they are known for active mate searching behavior,while females are *** was assessed both in the presence and absence of *** results supported both predictions:movement activity was higher in the cave than in the surface populations,particularly in *** predation pressure in the cave-adapted population is most likely the main selective factor behind increased behavioral activity,but we also showed that the extent of increase is sex-specific.

关键词： adaptation cave colonization movement activity predator-free environment

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Immunogenic and Protective Properties of the First Kazakhstan Vaccine against Pandemic Influenza А(Н1N1) pdm09 in Ferrets

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Virologica Sinica 2012年第6期27卷 345-352页

作者： Kaissar Tabynov Zhailaubai Kydyrbayev Abylai Sansyzbay Berik Khairullin Sholpan Ryskeldinova Nurika Assanzhanova Yerken Kozhamkulov Dulat Inkarbekov Research Institute for biological Safety Problems (RIBSP) Gvardeiski 080409 Kazakhstan

This paper presents the results of a pre-clinical study of the immunogenicity and efficacy of an egg-derived, inactivated, whole-virion adjuvanted vaccine （Refluvac） on ferret models. For this purpose, groups of eight ferrets （6 to 7 months old） were injected with 0.5 mL of vaccine specimens containing 3.75, 7.5 or 15.0 μg of virus hemagglutinin. Administration was intramuscular and given either as a single dose or as two doses 14 days apart. All vaccine specimens manifested immunogenicity in ferrets for single （HI titer, from 51 ± 7 to 160 ± 23） and double （HI titer, from 697± 120 to 829 ± 117） administrations. To assess the protective effects of the vaccine, ferrets from the vaccinated and control groups were infected intranasally with pandemic virus A/California/7/09 （H1N1） pdm09 at a dose of 106 106/0.5 mL. Fourteen days post-infection, the ferrets inoculated with single or double vaccines containing 3.75, 7.5 or 15.0 ~g of hemagglutinin per dose showed no signs of influenza infection, weight loss, or body temperature rise, and no premature deaths occurred. The number of vaccinated ferrets shedding the virus via the upper airway, as well as the amount of virus shed after infection, was significantly reduced in comparison with animals from the control group. Based on our results, we suggest that a single vaccination at a dose of 3.75 or 7.5 μg hemagglutinin be used for Phase I clinical trials.

关键词： Vaccine Pandemic Influenza A (H1N1) pdm09 Immunogenic and Protective Properties Ferrets

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Cloning and functional identification of stress-resistant BeDREB genes from Bermuda grass

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Frontiers in Biology 2006年第4期1卷 367-374页

作者： XIE Yongli WANG Zizhang LIU Qiang ZHANG Shuping Department of biological Sciences and Biotechnology Tsinghua UniversityBeijing 100084China

Dehydration-responsive element-binding(DREB)proteins,specifically binding to the dehydration-responsive element(DRE),have been identified as a group of important transcription activators of plants which regulate the expression of genes in response to drought,high-salt and lowtemperature *** DREB-like genes from Bermuda grass that are induced by low-temperature or high-salt stresses were cloned using RT-PCR and RACE methods,and were named BeDREB1 and BeDREB2,respectively(GenBank accession No:AY462117 and AY462118).They contained an ORF of 753 bp encoding 251 amino acids,showing the typical characteristics of the DREB gene ***,these two genes isolated from Bermuda grass induced either by low-temperature stress or high-salt stress shared 97.8%***,it was demonstrated that both BeDREB1 and BeDREB2 could bind to the wild-type DRE element to activate the transcription of the reporter gene HIS3,driven by a promoter carrying DRE cis-element in yeast strain 4721,in the presence of ***-PCR showed that BeDREB1 and BeDREB2 genes could be greatly induced by low-temperature and high-salt stresses,*** expressions were changed following the inducible *** conclusion,all results indicate that BeDREB1 and BeDREB2 genes isolated from treated Bermuda grass are new members of the DREB transcription activator family,which may play very important roles in signal transduction related to stresses.

关键词： Bermuda grass BeDREB DRE element molecular cloning transcription activation

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Potential of ginsenoside Rg1 to treat aplastic anemia via mitogen activated protein kinase pathway in cyclophosphamide-induced myelosuppression mouse model

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World Journal of Stem Cells 2024年第11期16卷 900-905页

作者： See-Hyoung Park biological and Chemical Engineering Hongik UniversitySejong 30016South Korea

Aplastic anemia(AA)is a rare but serious condition in which the bone marrow fails to produce sufficient new blood cells,leading to fatigue,increased susceptibility to infection,and uncontrolled *** this editorial,we review and comment on an article by Wang et al published in *** study aimed to evaluate the potential therapeutic benefits of ginsenoside Rg1 in AA,focusing on its protective effects and uncovering the underlying ***(CTX)administration caused substantial damage to the structural integrity of the bone marrow and decreased the number of hematopoietic stem cells,thereby establishing an AA *** with the AA group,ginsenoside Rg1 alleviated the effects of CTX by reducing apoptosis and inflammatory ***,treatment with ginsenoside Rg1 significantly mitigated myelosuppression in mice by inhibiting the mitogen activated protein kinase signaling ***,this study indicates that ginsenoside Rg1 could be effective in treating AA by reducing myelosuppression,primarily through its influence on the mitogen activated protein kinase signaling *** expect that our review and comments will provide valuable insights for the scientific community related to this research and enhance the overall clarity of this article.

关键词： Aplastic anemia Cyclophosphamide Ginsenoside Rg1 Hematopoietic stem cells Apoptosis Inflammation Mitogen activated protein kinase

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Bitter Melon Powder Protects against Obesity-associated Fatty Liver Disease by Improving Colonic Microenvironment in Rats with High-fat Diet-induced Obesity

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Biomedical and Environmental Sciences 2017年第8期30卷 611-615页

作者： BAI Juan ZHU Ying DONG Ying School of Food and biological Engineering Jiangsu University Zhenjiang 212013 Jiangsu China

This study explored how bitter melon powder （BMP） alters the colonic microenvironment during the development of obesity-associated fatty liver in rats. We observed that BMP effectively inhibited the body weight gain and lipid accumulation in the liver, ameliorated glucose intolerance, and increased the colon weight after an 8-week treatment compared to that in the high-fat diet （HFD） group. BMP significantly decreased fecal water toxicity towards HT-29 cells, as revealed by the cell counting kit （CCK）-8 assay results, and the mRNA expression of Toll-like receptor 4 （TLR4） in colon mucosa. Additionally, gut permeability in the BMP group was restored to normal levels. Finally, BMP alleviated the inflammatory state of the rat colon mucosa and liver tissues as well as the systemic inflammation.

关键词： RNA Bitter Melon Powder Protects against Obesity-associated Fatty Liver Disease by Improving Colonic Microenvironment in Rats with High-fat Diet-induced Obesity BMP Figure TLR

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Micro and nano-enabled approaches to improve the performance of plasma electrolytic oxidation coated magnesium alloys

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Journal of Magnesium and Alloys 2021年第5期9卷 1497-1517页

作者： Safoora Farshid Mahshid Kharaziha Biomaterials Research group Department of Materials EngineeringIsfahan University of TechnologyIsfahan***Iran

Magnesium(Mg)and its alloys have become a hot research topic in various industries owing to the specific physical and chemical ***,high corrosion rate is considered the key *** electrolytic oxidation(PEO)method is a simple strategy to deposit an oxide layer on the surface of light metals such as magnesium alloys,to control corrosion rate and promote some other properties,depending on their ***,their features including their micropore size,distribution,and interconnectivity,and microcracks have not been improved to an acceptable level to support long-term performances of the magnesium-based *** have introduced micro/nano-enabled approaches to enhance various properties of PEO coatings such as corrosion resistance,tribological properties,self-healing ability,bioactivity,biocompatibility,antibacterial properties,or catalytic *** strategies consist of incorporating of micro and nanoparticles into the PEO layers to produce multi-functional surfaces or the formation of multi-layered coatings to cover the defects of PEO *** this perspective,the present paper aims to overview various nano/micro-enabled strategies to promote the properties of PEO coatings on magnesium *** main focus is given to the functional changes that occurred in response to the incorporation of various types of nano/micro-structures into the PEO coatings on magnesium alloys.

关键词： Plasma electrolytic oxidation Corrosion resistance Tribological properties biological properties Micro and multi-layer coatings

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In situ high-quality LiF/Li_(3)N inorganic and phenyl-based organic solid electrolyte interphases for advanced lithium–oxygen batteries

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Carbon Energy 2024年第9期6卷 29-38页

作者： Qianyan Wang Minsheng Wu Yunkai Xu Chuyue Li Yuanjia Rong Yaling Liao Menglin Gao Xiaoping Zhang Weirong Chen Jun Lu School of Electrical Engineering Southwest Jiaotong UniversityChengduChina College of Chemical and biological Engineering Zhejiang UniversityHangzhouChina

Lithium metal shows a great advantage as the most promising anode for its unparalleled theoretical specific capacity and extremely low electrochemical ***,uncontrolled lithium dendrite growth and severe side reactions of the reactive intermediates and organic electrolytes still limit the broad application of lithium metal ***,we propose 4-nitrobenzenesulfonyl fluoride(NBSF)as an electrolyte additive for forming a stable organic-inorganic hybrid solid electrolyte interphase(SEI)layer on the lithium *** abundance of lithium fluoride and lithium nitride can guarantee the SEI layer's toughness and high ionic conductivity,achieving dendrite-free lithium ***,the phenyl group of NBSF significantly contributes to both the chemical stability of the SEI layer and the good adaptation to volume changes of the lithium *** lithium-oxygen batteries with NBSF exhibit prolonged cycle lives and excellent cycling *** simple approach is hoped to improve the development of the organic-inorganic SEI layer to stabilize the lithium anodes for lithium-oxygen batteries.

关键词： lithium anode lithium-oxygen batteries reactive oxygen species solid electrolyte interphase

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