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灵芝子实体和孢子中总三萜含量的比色法测定

灵芝子实体和孢子中总三萜含量的比色法测定

Classifying moisture sources associated with snowfall in the mountains of Lesotho

首届海峡两岸食（药）用菌学术研讨会

作者：程乐乐杨晓彤糜可 jennifer m.f.wan 杨庆尧上海市建清实验学校上海师范大学生命与环境科学院微生物与免疫学研究所上海师范大学生命与环境科学院微生物与免疫学研究所香港大学理学院动物学系上海师范大学生命与环境科学院微生物与免疫学研究所

本文报道了一种灵芝（Ganoderma lucidum）子实体和孢子中总三萜含量的比色测定方法。灵芝总三萜用乙醇提取,与香草醛及高氯酸在加热条件下发生显色反应,最大吸光值在560nm左右,与齐墩果酸标准品反应后基本一致。以齐墩果酸作标准曲线,... 详细信息

本文报道了一种灵芝（Ganoderma lucidum）子实体和孢子中总三萜含量的比色测定方法。灵芝总三萜用乙醇提取,与香草醛及高氯酸在加热条件下发生显色反应,最大吸光值在560nm左右,与齐墩果酸标准品反应后基本一致。以齐墩果酸作标准曲线,检测线性范围是9-75μg/ml,反应物至少在1小时内稳定。用该法测得灵芝子实体和孢子中总三萜含量分别为1．07％和0．57％,回收率为98．2％。

关键词：灵芝(Ganoderma lucidum) 总三萜比色测定

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Journal of mountain Science 2024年第6期21卷 1941-1953页

作者： Alexi m.mARINAKI jennifer m.fITCHETT School of Geography Archaeology and Environmental StudiesUniversity of the WitwatersrandPrivate Bag X3Wits 2050South Africa

An average of eight snowfall events occur each year in the eastern Lesotho *** snowfall events are typically associated with cut-off low(CoLs)systems and mid-latitude ***,the moisture sources of the snowfall are unclassified and *** Hybrid Single-Particle Lagrangian Integrated Trajectory(HYSPLIT)model,an air mass back trajectory model,has been used to evaluate moisture source waters locally in southern Africa and internationally in China and *** study uses HYSPLIT to determine the source moisture of snow in Lesotho.A list of all 82 snowfall events in Lesotho spanning 2017 to 2022 was compiled using the Snow Report SA Instagram page,including the date and location of snowfall.A 72-hour back trajectory for each snowfall event was initiated for both Afriski and the whole of *** amounts to models of moisture source trajectories for 28 and 82 snowfall days,*** air mass pathways are classified according to their frequency per snowfall event,per month in the snow season,per year and for the full *** this,associated moisture source regions and dominant air mass trajectories were *** study reports that the air mass trajectories associated with Afriski and Lesotho as a whole are very *** most common pathway of air mass trajectories transporting snow-bearing moisture to Lesotho was an inland trajectory from the northern regions of southern *** pathway makes up 16.6%of all trajectories reported and is associated with the Angola Low,the Congo Air Boundary and the *** High Pressure.

关键词： Eastern Lesotho Highlands Afriski Snow Cut-off Lows HYSPLIT Synoptic Climatology

鲎G因子实验法定量测定药用、食用蘑菇多糖中的(1→3)—β-葡聚糖含量(英文)

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鲎G因子实验法定量测定药用、食用蘑菇多糖中的(1→3)—β-葡聚糖...

Working toward an integrated plasticity/network framework for repetitive transcranial magnetic stimulation to inform tailored treatments

中国菌物学会第三届会员代表大会暨全国第六届菌物学学术讨论会

作者：杨晓彤 jennifer m.f.wan 糜可冯慧琴 Daniel K.O.Chan 杨庆尧香港大学理学院动物学系上海师范大学微生物与免疫学研究所

(1→3)-□-glucan is a core structure in mushroom polysaccharide, which claim to posses anticancerous and immunomodulatory properties. The ability to identify (1→3)-□-glucan in mushroom polysaccharide not only provide useful information on the structural composition of the mushroom polysaccharide, but facilitate us to identify the potential anticancerous and immunomodulatory active *** limulus factor G test, we detected (1→3)-□-glucan in 27 polysaccharides extracted from 19 edible or medicinal mushrooms species. The result show that (1→3)-□-glucan exists in all mushroom polysaccharide extracts but its content varies extremely depends on the mushroom species or the part of mushroom and the degree of purification. Our data show the mean of (1→3)-□-glucan in these mushroom polysaccharides is 34.8%. Nine mushroom polysaccharide extracts from L. edodes, S. commune, C. versicolor, V. volvacea, C. comatus, G. frondosa, L. shimeji have superior (1→3)-□-glucan contents than the others. Our study demonstrates that limulus factor G test is a quick and convenient method for detecting (1→3)-□-glucan content in crude mushroom polysaccharide extracts.

关键词： (1→3)-□-glucan polysaccharide mushroom limulus factor G

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Neural Regeneration Research 2024年第7期19卷 1423-1424页

作者： Jessica moretti jennifer Rodger Experimental and Regenerative Neurosciences School of Biological SciencesUniversity of Western AustraliaCrawleyWAAustralia Brain Plasticity Lab Perron Institute for Neurological and Translational ScienceNedlandsWAAustralia

Non-invasive brain stimulation techniques(NIBS),including repetitive transcranial magnetic stimulation(rTmS) and transcranial electric stim ulation(tES),are increasingly being adopted clinically for treatment of neuropsychiatric and neurological disorders,albeit with varying *** rationale behind the use of NIBS has historically been that stim ulation techniques modulate neuronal activity in the targeted region and consequently induce plasticity which can lead to therapeutic outcomes.

关键词： stimulation transcranial treatment

Implications of regional identity for neural stem and progenitor cell transplantation in the injured or diseased nervous system

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Neural Regeneration Research 2024年第4期19卷 715-716页

作者： Prakruthi Amar Kumar jennifer N.Dulin Department of Biology Texas A&M UniversityCollege Station Texas A&m Institute for Neuroscience Texas A&M UniversityCollege Station

Neural stem and progenitor cell(NSPC)transpla ntation has emerged as a promising therapeutic strategy for replacing lost neuronal populations and repairing damaged neural circuits following nervous system injury and disease.A great deal of experimental work has investigated the biology of NSPC grafting in preclinical animal models;more recently.

关键词： neural system injured

New Opportunities for Neutrons in Environmental and Biological Sciences

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frontiers of Environmental Science & Engineering 2024年第7期18卷 179-186页

作者： Alexander Johs Shuo Qian Leighton Coates Brian H.Davison James G.Elkins Xin Gu jennifer morrell-falvey Hugh O'Neill Jeffrey m.Warren Eric m.Pierce Kenneth Herwig Oak Ridge National Laboratory Oak RidgeTN37831USA

The use of neutron methods in environmental and biological sciences is rapidly emerging and accelerating with the development of new instruments at neutron user *** article,based on a workshop held at Oak Ridge National Laboratory(ORNL),offers insights into the application of neutron techniques in environmental and biological *** highlight recent advances and identify key challenges and potential future research *** include soil and rhizosphere processes,root water dynamics,plant-microbe interactions,structure and dynamics of biological systems,applications in synthetic biology and enzyme engineering,next-generation bioproducts,biomaterials and bioenergy,nanoscale structure,and fluid dynamics of porous materials in *** provide an outlook on emerging opportunities with an emphasis on new capabilities that will be enabled at the Spallation Neutron Source Second Target Station currently under design at *** mission of scientific neutron user facilities worldwide is to enable science using state-of-the-art neutron *** aim to encourage researchers in the environmental and biological research community to explore the unique capability afforded by neutrons at these facilities.

关键词： Neutrons Environment Biology Neutron imaging Neutron scattering Second Target Station(STS)

Exercise and exerkine upregulation:Brain-derived neurotrophic factor as a potential non-pharmacological therapeutic strategy for Parkinson’s disease

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BIOCELL 2024年第5期48卷 693-706页

作者： VIRAAJ VISHNU PRASAD jennifer SALLY SAmSON VENKATACHALAm DEEPA PARVATHI Department of Biomedical Sciences Sri Ramachandra Institute of Higher Education and ResearchChennai600116India

Physical activity and exercise have several beneficial roles in enhancing both physiological and psychological well-being of an *** addition to aiding the regulation of aerobic and anaerobic metabolism,exercise can stimulate the synthesis of exerkine hormones in the circulatory *** several exerkines that have been investigated for their therapeutic potential,Brain-derived neurotrophic factor(BDNf)is considered the most promising candidate,especially in the management of neurodegenerative *** to the ability of physical activity to enhance BDNf synthesis,several experimental studies conducted so far have validated this hypothesis and produced satisfactory results at the pre-clinical *** review highlights some of the recent animal model studies that have evaluated the efficiency of exercise in enhancing BDNf synthesis and promoting neuroprotective ***,this review focuses on understanding the therapeutic benefits of exercise-induced exerkine synthesis as a non-pharmacological strategy in Parkinson’s disease(PD).Regarding physical activity and exerkine induction,the neuromuscular electrical stimulation(NmES)strategy could be considered as an alternate treatment modality for patients affected with PD.

关键词： Exercise therapy Dopaminergic neurons Parkinson’s disease Brain-derived neurotrophic factor Electrical stimulation

Optimizing artificial intelligence in sepsis management: Opportunities in the present and looking closely to the future

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Journal of Intensive medicine 2024年第1期4卷 34-45页

作者： Darragh O’Reilly jennifer mcGrath Ignacio martin-Loeches Department of Intensive Care medicine Multidisciplinary Intensive Care Research Organization(MICRO)St James’HospitalDublinIreland Department of Respiratory Intensive care Hospital ClinicUniversitat de BarcelonaIDIBAPSCIBERESBarcelonaSpain

Sepsis remains a major challenge internationally for healthcare *** incidence is rising due to poor public awareness and delays in its recognition and subsequent *** sepsis,mortality increases with every hour left *** intelligence(AI)is transforming worldwide healthcare delivery at *** review has outlined how AI can augment strategies to address this global disease *** and machine learning(mL)algorithms can analyze vast quantities of increasingly complex clinical datasets from electronic medical records to assist clinicians in diagnosing and treating sepsis earlier than traditional *** review highlights how these models can predict the risk of sepsis and organ failure even before it *** gives providers additional time to plan and execute treatment plans,thereby avoiding increasing complications associated with delayed diagnosis of *** potential for cost savings with AI implementation is also discussed,including improving workflow efficiencies,reducing administrative costs,and improving healthcare *** these advantages,clinicians have been slow to adopt AI into clinical *** of the limitations posed by AI solutions include the lack of diverse data sets for model building so that they are widely applicable for routine clinical ***,the subsequent algorithms are often based on complex mathematics leading to clinician hesitancy to embrace such ***,we highlight the need for robust political and regulatory frameworks in this area to achieve the trust and approval of clinicians and patients to implement this transformational technology。

关键词： Artificial intelligence Data science machine learning Intensive care unit(ICU) Critical care Sepsis

Germline Gene-Editing Creates Enhanced Livestock-Technical and Especially Ethical Issues Challenge Its Use in Humans

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Engineering 2024年第2期33卷 3-5页

作者： jennifer Welsh Senior Technology Writer

Using clustered regularly interspaced short palindromic repeats(CRISPR)-based molecular tools,scientists are engineering-as they are also doing with plants.-animals with advantageous traits,like disease resistance and improved food *** these innovative techniques could one day be applied in humans,technical hurdles and ethical concerns likely place this possibility far in the future,The enhancements rely on germline gene editing,which alters the genes in a way that passes the changes on to *** m-line gene editing differs from the somatic cell gene editing used in the highly promising new treatment recently approved for the human disease sickle cell anemia.

关键词： likely Create editing