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Dietary supplementation of valine,isoleucine,and tryptophan may overcome the negative effects of excess leucine in diets for weanling pigs containing corn fermented protein

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journal of Animal Science and Biotechnology 2025年第1期16卷 267-281页

作者： Andrea P.Mallea Charmaine D.Espinosa Su A Lee Minoy A.Cristobal Leidy j.Torrez‑Mendoza Hans H.Stein Division of Nutritional Sciences University of IllinoisUrbanaIL 61801USA Department of Animal Sciences University of IllinoisUrbanaIL 61801USA Present Address:EnviroFlight RaleighNCUSA.

Background Diets with high inclusion of corn co-products such as corn fermented protein(CFP)may contain excess Leu,which has a negative impact on feed intake and growth performance of pigs due to increased catabolism of Val and Ile and reduced availability of Trp in the brain for serotonin ***,we hypothesized that the negative effect of using CFP in diets for weanling pigs may be overcome if diets are fortified with crystalline sources of Val,Trp,and(or)*** Three hundred and twenty weanling pigs were randomly allotted to one of 10 dietary treatments in a com-pletely randomized design,with 4 pigs per pen and 8 replicate pens per treatment.A corn-soybean meal diet and 2 basal diets based on corn and 10%CFP or corn and 20%CFP were *** additional diets were formu-lated by fortifying the basal diet with 20%CFP with Ile,Trp,Val,Ile and Val,Ile and Trp,Trp and Val,or Ile,Trp and Val.A two-phase feeding program was used,with d 1 to 14 being phase 1 and d 15 to 28 being phase *** scores were recorded every other *** samples were collected on d 14 and 28 from one pig per *** d 14,fecal samples were collected from one pig per pen in 3 of the 10 treatments to determine volatile fatty acids,ammonium concen-tration,and microbial *** pigs were also euthanized and ileal tissue was *** There were no effects of dietary treatments on any of the parameters evaluated in phase *** of 10%or 20%CFP in diets reduced(P<0.05)final body weight on d 28,and average daily gain(ADG)and average daily feed intake(ADFI)in phase 2 and for the entire experimental ***,pigs fed the CFP diet supplemented with Val,Ile,and Trp had final body weight,ADFI,ADG and gain to feed ratio in phase 2 and for the entire experiment that was not different from pigs fed the control *** scores in phase 2 were reduced(P<0.05)if CFP was *** Corn fermented protein may be included by up to 20%in diets for weanling pi

关键词： Branched-chain amino acids Corn fermented protein Leucine Tryptophan Valine Weanling pigs

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First Search for Pulsed CH Maser Emission Stimulated by a Pulsar

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Research in Astronomy and Astrophysics 2025年第2期25卷 62-71页

作者： Mengting Liu Di Li j.R.Dawson joel M.Weisberg George Hobbs Ningyu Tang Gan Luo Duo Xu Donghui Quan Research Center for Astronomical Computing Zhejiang Laboratory Department of Astronomy Tsinghua University National Astronomical Observatories Chinese Academy of Sciences CSIRO Astronomy & Space Science Australia Telescope National Facility School of Mathematical and Physical Sciences and Astrophysics and Space Technologies Research Centre Macquarie University Department of Physics and Astronomy Carleton College Department of Physics Anhui Normal University Institut de Radioastronomie Millimetrique 300 Rue de la Piscine Canadian Institute for Theoretical Astrophysics University of Toronto 60 St.George Street

We present the first search for pulsed CH maser emission potentially stimulated by PSR j1644-4559,conducted using the ultra-wide-bandwidth low-frequency receiver on Murriyang,CSIRO's Parkes Radio *** targeted three CHΛ-doublet transitions at 3264,3335,and 3349 MHz,with a variability timescale of78 *** detected ten CH emission features at 3335 and 3349 MHz,and seven features at 3264 MHz,during both pulsar-ON and pulsar-OFF *** observed velocities align with the OH emission and absorption reported by a previous study,suggesting a close spatial association between CH and OH *** derived column densities for CH clouds within the Parkes beam range from 0.05 to 9.8×1013cm-2,indicating that these clouds are likely in diffuse and translucent *** limits for CH column densities within the pulsar beam ranged from 0.3 to 9.8×*** of these column densities suggests that CH clouds may exhibit clumpiness and *** significant stimulated emission feature was detected in the optical depth ***,as part of our search for pulsed stimulated emission,we investigated the potential CH absorption of the pulsar signal and found none,in agreement with astrophysical *** upper limits for the potential maser amplification factors towards PSR j1644-4559 at 3264,3335,and 3349 MHz are 1.014,1.009,and 1.009,*** study demonstrates the feasibility of detecting pulsed CH maser emission in the interstellar medium stimulated by pulsar photons.

关键词： (stars:) pulsars: general ISM: molecules masers

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广西肝癌患者乙型肝炎病毒前C区基因的突变

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中华预防医学杂志 2000年第2期34卷 83-85页

作者：方钟燎何并文庄辉 Ling ring Tim j Harrison 南宁市广西壮族自治区卫生防疫站肝炎室 530021 广西肿瘤病防治研究所北京医科大学 Royal Free Hospital University of LondonEngland

目的　了解乙型肝炎病毒 (HBV)前C区基因突变与HBeAg阴性的原发性肝癌患者HBV感染的关系。方法　应用套式PCR方法对广西 16例原发性肝癌患者血清HBVDNA前C区进行扩增 ,对阳性者用SangerDNA测序法分析。结果　 16例肝癌患者中有 14例HBV... 详细信息

目的　了解乙型肝炎病毒 (HBV)前C区基因突变与HBeAg阴性的原发性肝癌患者HBV感染的关系。方法　应用套式PCR方法对广西 16例原发性肝癌患者血清HBVDNA前C区进行扩增 ,对阳性者用SangerDNA测序法分析。结果　 16例肝癌患者中有 14例HBVDNA阳性 ,阳性率为87 5 % (14/16 )。其中 1例HBeAg阳性 ,1例虽然HBeAg为阴性 ,但其前C区序列正常 ;2例为HBV野毒株和突变株混合感染 ;其余 8例为HBV突变株感染。该 8例中 ,仅第 4、5、12例的第 2 8密码为终止密码 ,有 1例为HBV终止密码株和无终止密码突变株混合感染。结论　经典的 1896位核苷酸点突变株感染在广西原发性肝癌患者中并不常见 ,提示可能存在前C区以外的基因突变 ,并导致HBeAg阴性的HBV感染。

关键词：乙型肝炎病毒基因突变肝肿瘤

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Late Paleozoic–Early Mesozoic tectonic evolution of the Zongwulong Shan-Qinghai Nanshan tectonic belt in the northern Qaidam continent， northern Tibet

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journal of Earth Science 2025年

作者： Yonghui Zhao Chen Wu jie Li Peter j.Haproff Lin Ding State Key Laboratory of Tibetan Plateau Earth System and Resources Environment (TPESRE)， Institute of Tibetan Plateau Research， Chinese Academy of Sciences University of Chinese Academy of Sciences Chongqing Key Laboratory of Complex Oil and Gas Field Exploration and Development， Chongqing University of Science and Technology Department of Earth and Ocean Sciences， University of North Carolina Wilmington

The Zongwulong Shan-Qinghai Nanshan tectonic belt of the northern Tibet Plateau experienced a protracted tectonic history， including the openings and closures of the Proto- and Paleo-Tethyan Oceans. Although the tectonic belt has been extensively studied， details regarding the tectonic processes involved in its development remain controversial. To better constrain the tectonic processes of this tectonic belt， we conducted detailed field geological mapping， zircon U-Pb geochronology， and whole-rock geochemical and Sr-Nd isotopic analyses. Our results show that intrusive rocks in the tectonic belt crystallized in ca. 292–233 Ma， perhaps in an arc/subduction setting. Geochemical and Sr-Nd isotopic data suggest that early Permian–late Triassic ultramafic-intermediate intrusions were sourced from the enriched mantle， whereas intermediate-acidic rocks were sourced from mixed crust-mantle. We present the tectonic model that involves: (1) Early Devonian–early Permian intracontinental extension occurred in the northern margin of the Qaidam continent (ca. 416 Ma–292 Ma); (2) Early Permian–late Triassic northward subduction of the Paleo-Tethyan Ocean resulted in arc magmatism (ca. 292 Ma–233 Ma); and (3) subsequent late Triassic intracontinental extension (ca. 233 Ma–215 Ma). Our results suggest that the late Paleozoic–early Mesozoic development of the Zongwulong Shan-Qinghai Nanshan was related to the opening， subduction， and slab retreat of the Paleo-Tethyan Ocean， which has key implications for the tectonic evolution of the northern Tibetan Plateau.

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Telomeres: The Promise of New Cancer Therapies

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American journal of Molecular Biology 2025年第1期15卷 88-96页

作者： Ruixian Hou jonathan j. Darrow jericho High School Jericho NY USA Baylor College of Medicine Temple TX USA

Telomeres have been a subject of genetic research since the 1930s. They play a crucial role in cancer biology, as they influence both cellular senescence and genomic stability. In cancer cells, dysfunctional telomeres can lead to chromosomal fusions and, through deregulation of telomerase, allow replication of mutated chromosomes that might otherwise lead to apoptosis. Research is now focused on improving telomere-based cancer cell detection and developing potential therapies that inhibit telomerase activity in cancerous cells. Telomere research is crucial in understanding the molecular mechanisms influencing tumor growth and invasiveness because of the central role played by telomeres in various cancer types. Several telomerase inhibitors and immunotherapy treatments are in pre-clinical or clinical development. Research on the role of telomeres in oncogenesis has made significant strides, but obstacles remain, including a lack of high-resolution structural understanding, inadequate preclinical models, and concern over potential side effects. Even so, the current path of telomere research holds promise.

关键词： Telomere Telomerase Inhibition Cancer Detection Cancer Treatment Immunotherapy

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2024年 journal of Diabetes第12期中文导读

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中华内分泌代谢杂志 2025年第1期41卷 84-86页

作者： j Diabetes编辑部

综述/Review Article

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Beneficial roles of nutrients as immunostimulants in aquaculture:A review

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Aquaculture and Fisheries 2024年第5期9卷 707-720页

作者： Seerengaraj Vijayaram Einar ringø Antonio Zuorro Hien van Doan Yunzhang Sun Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation Fisheries CollegeJimei UniversityXiamen361021China Norwegian College of Fishery Science Faculty of BioscienceFisheries and EconomicsUiT the Arctic University of NorwayTromsø9037Norway Department of Chemical Engineering Materials and EnvironmentSapienza UniversityVia Eudossiana 18Rome00184Italy Department of Animal and Aquatic Sciences Faculty of AgricultureChiang Mai UniversityChiang Mai50200Thailand

Protein deficiency is a major difficulty for human needs in the past few decades,while different types of aquatic species are rich in high quality ***,aquaculture is considered as the main developing food production sector *** infections are the main problem for aquaculture,and their outbreaks have a great impact on productivity,and previously indiscriminate use of antibiotics to control ***,the emergence of multidrug-resistant pathogens might lead to sudden infectious disease outbreaks resulting in serious economic *** application is an effective technique to protect and enhance the immune system of aquatic animals and therefore improve aquaculture *** immunostimulants such as essential fatty acids,amino acids,vitamins,and minerals are the most important responsibility to improve aquaculture production,as well as the cost of this method,which is effective,non-toxic,and environment *** nutrient immunostimulants are supportive to increase the immune system,antioxidant,anti-inflammatory,and infection resistance of aquatic *** addition,nutritional feed additives improved feed palatability and the excellence of aquatic products and also enhance gut *** information is available on nutrient immunostimulants in aquaculture applications,and this review provides information on different kinds of nutritional administration used in aquaculture to enhance positive impacts on aquatic animals’health as well as feed quality *** review will provide theoretical references for the application of nutrient immunostimulants in aquatic feeds.

关键词： Immunostimulants Amino acids Vitamins Minerals Nucleotides Aquaculture

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LHAASO detection of very-high-energy γ-ray emission surrounding PSR j0248+6021

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Science China(Physics,Mechanics & Astronomy) 2025年

作者： Zhen Cao F.Aharonian Axikegu Y.X.Bai Y.W.Bao D.Bastieri X.j.Bi Y.j.Bi W.Bian A.V.Bukevich Q.Cao W.Y.Cao Zhe Cao j.Chang j.F.Chang A.M.Chen E.S.Chen H.X.Chen Liang Chen Lin Chen Long Chen M.j.Chen M.L.Chen Q.H.Chen S.Chen S.H.Chen S.Z.Chen T.L.Chen Y.Chen N.Cheng Y.D.Cheng M.C.Chu M.Y.Cui S.W.Cui X.H.Cui Y.D.Cui B.Z.Dai H.L.Dai Z.G.Dai Danzengluobu X.Q.Dong K.K.Duan j.H.Fan Y.Z.Fan j.Fang j.H.Fang K.Fang C.F.Feng H.Feng L.Feng S.H.Feng X.T.Feng Y.Feng Y.L.Feng S.Gabici B.Gao C.D.Gao Q.Gao W.Gao W.K.Gao M.M.Ge T.T.Ge L.S.Geng G.Giacinti G.H.Gong Q.B.Gou M.H.Gu F.L.Guo j.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.Han O.A.Hannuksela M.Hasan H.H.He H.N.He j.Y.He Y.He Y.K.Hor B.W.Hou C.Hou X.Hou H.B.Hu Q.Hu S.C.Hu C.Huang D.H.Huang T.Q.Huang W.j.Huang X.T.Huang X.Y.Huang Y.Huang Y.Y.Huang X.L.ji H.Y.jia K.jia H.B.jiang K.jiang X.W.jiang Z.j.jiang M.jin M.M.Kang I.Karpikov D.Khangulyan D.Kuleshov K.Kurinov B.B.Li C.M.Li Cheng Li Cong Li D.Li F.Li H.B.Li H.C.Li jian Li jie Li K.Li S.D.Li W.L.Li W.L.Li X.R.Li Xin Li Y.Z.Li Zhe Li Zhuo Li E.W.Liang Y.F.Liang S.j.Lin B.Liu C.Liu D.Liu D.B.Liu H.Liu H.D.Liu j.Liu j.L.Liu M.Y.Liu R.Y.Liu S.M.Liu W.Liu Y.Liu Y.N.Liu Q.Luo Y.Luo H.K.Lv B.Q.Ma L.L.Ma X.H.Ma j.R.Mao Z.Min W.Mitthumsiri H.j.Mu Y.C.Nan A.Neronov K.C.Y.Ng L.j.Ou P.Pattarakijwanich Z.Y.Pei j.C.Qi M.Y.Qi B.Q.Qiao j.j.Qin A.Raza D.Ruffolo A.Sáiz M.Saeed D.Semikoz L.Shao O.Shchegolev X.D.Sheng F.W.Shu H.C.Song Yu.V.Stenkin V.Stepanov Y.Su D.X.Sun Q.N.Sun X.N.Sun Z.B.Sun j.Takata P.H.T.Tam Q.W.Tang R.Tang Z.B.Tang W.W.Tian L.H.Wan C.Wang C.B.Wang G.W.Wang H.G.Wang H.H.Wang j.C.Wang Kai Wang Kai Wang L.P.Wang L.Y.Wang P.H.Wang R.Wang W.Wang X.G.Wang X.Y.Wang Y.Wang Y.D.Wang Y.j.Wang Z.H.Wang Z.X.Wang Zhen Wang Zheng Wang D.M.Wei j.j.Wei Y.j.Wei T.Wen C.Y.Wu H.R.Wu Q.W.Wu S.Wu X.F.Wu Y.S.Wu S.Q.Xi j.Xia G.M.Xiang D.X.Xiao G.Xiao Y.L.Xin Y.Xing D.R.Xiong Z.Xiong D.L.Xu R.F.Xu R.X.Xu W.L.Xu L.Xue D.H.Yan j.Z.Yan T.Yan C.W.Yang C.Y.Yang F.Yang F.F.Yang L.L.Yang M.j.Yang R.Z.Yang W.X.Yang Y.H.Yao Z.G.Yao L.Q.Yin N.Yin X.H.You Z.Y.You Y.H Southwest jiaotong University School of Astronomy and Space Science Nanjing University Center for Astrophysics Guangzhou University Tsung-Dao Lee Institute & School of Physics and Astronomy Shanghai jiao Tong University Institute for Nuclear Research of Russian Academy of Sciences Hebei Normal University University of Science and Technology of China LHAASO Collaboration State Key Laboratory of Particle Detection and Electronics Key Laboratory of Dark Matter and Space Astronomy & Key Laboratory of Radio Astronomy Purple Mountain Observatory Chinese Academy of Sciences Research Center for Astronomical Computing Zhejiang Laboratory Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences School of Physics and Astronomy Key Laboratory of Particle Astrophysics & Experimental Physics Division & Computing Center Yunnan University Key Laboratory of Cosmic Rays (Tibet University) Ministry of Education Department of Physics The Chinese University of Hong Kong Key Laboratory of Radio Astronomy and Technology National Astronomical Observatories Chinese Academy of Sciences School of Physics and Astronomy (Zhuhai) & School of Physics (Guangzhou) & Sino-French Institute of Nuclear Engineering and Technology (Zhuhai) Sun Yat-sen University Institute of High Energy Physics Institute of Frontier and Interdisciplinary Science Shandong University APC Université Paris Cité CNRS/IN2P3 CEA/IRFU Observatoire de Paris Department of Engineering Physics & Department of Astronomy Tsinghua University School of Physics and Microelectronics Chinese Academy of Sciences Zhengzhou University Yunnan Observatories Chinese Academy of Sciences China Center of Advanced Science and Technology College of Physics Sichuan University School of Physics Peking University Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and Technology University of Chinese Academy of Sciences Guangxi University Department of Physics Faculty of Science Mahidol University Moscow Institute

We report the detection of an extended very-high-energy(VHE) γ-ray source coincident with the location of middle-aged(62.4 kyr) pulsar PSR j0248+6021, by using the LHAASO-WCDA data of live 796 d and LHAASO-KM2A data of live 1216d. A significant excess of γ-ray induced showers is observed both by WCDA in energy bands of 1-25 Te V and KM2A in energy bands of >25 TeV with 7.3σ and 13.5σ, respectively. The best-fit position derived through WCDA data is R.A. = 42.06°± 0.12°and Dec. = 60.24°± 0.13°with an extension of 0.69°±0.15°and that of the KM2A data is R.A.= 42.29°± 0.13°and Dec. =60.38°± 0.07°with an extension of 0.37°±0.07°. No clear extended multiwavelength counterpart of this LHAASO source has been found from the radio band to the GeV band. The most plausible explanation of the VHE γ-ray emission is the inverse Compton process of highly relativistic electrons and positrons injected by the pulsar. These electrons/positrons are hypothesized to be either confined within the pulsar wind nebula or to have already escaped into the interstellar medium, forming a pulsar halo.

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The Pichia pastoris enzyme production platform:From combinatorial library screening to bench-top fermentation on residual cyanobacterial biomass

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journal of Bioresources and Bioproducts 2024年第1期9卷 43-57页

作者： Korbinian Sinzinger Ulrike Obst Samed Güner Manuel Döring Magdalena Haslbeck Doris Schieder Volker Sieber Chair of Chemistry of Biogenic Resources Campus Straubing for Biotechnology and SustainabilityTechnical University of MunichStraubing 94315Germany Catalysis Research Center Technical University of MunichGarching 85748Germany SynBiofoundry@TUM Technical University of MunichStraubing 94315Germany School of Chemistry and Molecular Biosciences The University of QueenslandSt.Lucia 4072Australia

The demand for industrial enzymes is continually rising,fueled by the growing need to shift towards more sustainable industrial ***,making efficient enzyme production strains and identifying optimal enzyme expression conditions remains a ***,the production of the enzymes themselves comes with unavoidable impacts,e.g.,the need to utilize secondary ***,we take a more holistic view of bioprocess development and report an integrative approach that allows us to rapidly identify improved enzyme expression and secretion conditions and make use of cyanobacterial waste biomass as feed for supporting Pichia pastoris *** demonstrate these capabilities by producing a phytase secreted by *** that is grown on cyanobacterium hydrolysate and buffered glycerol-complex(BMGY)medium,with genetic expression conditions identified by high-throughput screening of a randomized se-cretion *** our best-performing strain is grown in a fed-batch fermentation on BMGY,we reach over 7000 U/mL in three days.

关键词： Protein secretion Phytase Cyanobacterial biomass Fed-batch fermentation Pichia pastoris

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Changes in the liver transplant evaluation process during the early COVID-19 era and the role of telehealth

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World journal of Transplantation 2025年第2期15卷 149-160页

作者： Ashley H jowell Allison j Kwong Reshma Reguram Tami j Daugherty Paul Yien Kwo Department of Medicine Duke University Medical CenterDurhamNC 27710United States Department of Medicine Stanford UniversityRedwood CityCA 94063United States Department of Medicine Trinity HealthPontiacMI 48341United States

BACKGROUND Coronavirus disease 2019(COVID-19)disrupted healthcare and led to increased telehealth *** explored the impact of COVID-19 on liver transplant evaluation(LTE).AIM To understand the impact of telehealth on LTE during COVID-19 and to identify disparities in outcomes disaggregated by sociodemographic *** This was a retrospective study of patients who initiated LTE at our center from 3/16/20-3/16/21(“COVID-19 era”)and the year prior(3/16/19-3/15/20,“pre-COVID-19 era”).We compared LTE duration times between eras and explored the effects of telehealth and inpatient evaluations on LTE duration,listing,and pretransplant *** One hundred and seventy-eight patients were included in the pre-COVID-19 era cohort and one hundred and ninety-nine in the COVID-19 era *** percent(58/199)of COVID-19 era initial LTE were telehealth,compared to 0%(0/178)*** were more inpatient evaluations during COVID-19 era(40%vs 28%,Pring COVID-19 era did not impact likelihood of listing,pretransplant mortality,or time to LTE and *** times to LTE and listing during COVID-19 were shorter than pre-COVID-19,driven by increased inpatient *** factors were not predictive of *** COVID-19 demonstrates a shift to telehealth and inpatient *** does not impact LTE or listing duration,likelihood of listing,or mortality,suggesting telehealth may facilitate LTE without negative outcomes.

关键词： Liver transplant evaluation Telehealth Health access Health equity COVID-19

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