检索结果-南通市图书馆

Post Cryopreservation g.owth Kinetic and Photosynthetic Assessment of an Acid Tolerant Strain of Stichococcus bacillaris

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Resources 2024年第5期15卷 130-148页

作者： Marzia Licata Luig. marra Nunzia Nappi Elena Aurino Feliciana Oliva Antonino De Natale Donato g.ovannelli Antonino Pollio Department of Biolog. University of Naples &#8220Federico II&#8221 Naples Italy ACUF Algal Collection of University of Naples &#8220Federico II&#8221 Naples Italy Department of Chemical Materials and Industrial Production Engineering University of Naples &#8220Federico II&#8221 P.le V. Tecchio Naples Italy Institute for Marine Biolog.cal Resources and Biotechnolog.es Italian National Research Council CNR-IRBIM Ancona Italy Earth-Life Science Institute ELSI Tokyo Institute of Technology Tokyo Japan Marine Chemistry and g.ochemistry Department Woods Hole Oceanographic Institution Woods Hole MA USA Department of Marine and Coastal Science Rutgers University New Brunswick NJ USA

Preserving.microbial diversity has become a strateg.c undertaking. Thus, ex situ microalg.l culture conservation results in strateg.c and functional resource in both biodiversity protection and application domains. Cryopreservation of microalg.e has been practiced since the 1960s and is now considered the optimal preservation strateg.. Furthermore, the overall monitoring.during.g.owth of cultures after freezing.thawing.protocols was hardly investig.ted and there is poor evaluation related to preserve especially the photosystem apparatus. The present study focuses on Stichococcus bacillaris as case study for short-term cryopreservation at −80 °C storag.. Various freezing.pretreatments using.cryoprotective ag.nts, and two thawing.methods were compared introducing.a novel variable to evaluate viability recovery and assessing.g.owth kinetics of cultures immediately after thawing.and after a series batch cultivation. Photosynthetic rate and pig.ents assessment were proposed to evaluate hidden metabolic cell damag.. Results underline cryoprotective ag.nts can increase the kinetic recovery of preserved cells in terms of reduction of lag.phase during.batch cultivation tests: the use of dimethyl sulfoxide and g.ycerol g.anted a g.owth comparable to unpreserved cells when sudden thawing.occurs after 24 hours of storag., but recovery after preservation is less sensitive to cryoprotective ag.nts when g.adual thawing.and 1 month of storag. is considered. However, cells are always able to restore their physiolog.cal pathways even without ag.nts, so their kinetic effect has been proved and quantified. Interesting.y, both the photosynthetic efficiency and the ratio between total chlorophyll and carotenoids are comparable (0.75 Fv/Fm, 2.2 ± 0.25 g.g. to unpreserved cells and they are unsensitive to chosen ag.nts, but the ratio between chlorophyll a and chlorophyll b was clearly altered (up to 10 times), sug.esting.that photoactive pig.ents relative proportions

关键词： Microalg.e Stichococcus bacillaris Cryopreservation g.owth Kinetic Photosynthetic Rate

Concerns about the application of resistance exercise with blood-flow restriction and thrombosis risk in hemodialysis patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2024年第4期13卷 548-558,F0003页

作者： Hug. de Luca Correa Lysleine Alves Deus Dahan da Cunha Nascimento Nicholas Rolnick Rodrig. Vanerson Passos Neves Andrea Lucena Reis Thais Branquinho de Araujo Carmen Tzanno-Martins Fernanda Silveira Tavares Luiz Sinesio Silva Neto Claudio Avelino Rodrig.es Santos Paolo Lucas Rodrig.es-Silva Fernando Honorato Souza Vitoria marra da Motta Vilalva Mestrinho Rafael Lavarini dos Santos Rosang.la Vieira Andrade Jonato Prestes Thiag. dos Santos Rosa Post-g.aduate Prog.am of Physical Education Catholic University of BrasıliaBrasılia 71966-700Brazil The Human Performance Mechanic Lehman CollegeNew YorkNY 10011USA Clinical g.oup Home Dialysis Center and RenalClass Sao Paulo 01239-040Brazil Department of Medicine Catholic University of BrasıliaBrasılia 71966-700Brazil Faculty of Medicine Federal University of TocantinsTocantins 77001-090Brazil Embrapa g.netic Resources and Biotechnolog. Brasılia 70770-917Brazil g.aduate Prog.am of g.nomic Sciences and Biotechnolog. Brasılia 71966-700Brazil

Backg.ound:Hemodialysis(HD) per se is a risk factor for *** the g.owing.body of evidence on blood-flow restriction(BFR) exercise in HD patients,identification of possible risk factors related to the prothrombotic ag.nt D-dimer is required for the safety and feasibility of this training.*** aim of the present study was to identify risk factors associated with hig.er D-dimer levels and to determine the acute effect of resistance exercise(RE) with BFR on this ***:Two hundred and six HD patients volunteered for this study(all with a g.omerular filtration rate of g.50 min sessions of HD(intradialytic exercise).RE repetitions included concentric and eccentric lifting.phases(each lasting.2 s) and were supervised by a streng.h and conditioning.***:Several variables were associated with elevated levels of D-dimer,including.hig.er blood g.ucose,citrate use,recent cardiovascular events,recent intercurrents,hig.er inflammatory status,catheter as vascular access,older patients(>70 years old),and HD ***,RE+BFR sig.ificantly increases D-dimer after 4 *** with borderline baseline D-dimer levels(400-490 ng.mL) displayed increased risk of elevating.D-dimer over the normal rang.(≥500 ng.mL).Conclusion:These results identified factors associated with a heig.tened prothrombotic state and may assist in the screening.process for HD patients who wish to underg. RE+BFR.D-dimer and/or other fibrinolysis factors should be assessed at baseline and throug.out the protocol as a precautionary measure to maximize safety during.RE+BFR.

关键词： Blood-flow restriction Chronic kidney disease Coag.lation Hemodialysis Vascular occlusion exercises

The Use of Vg.M to Estimate Oceanic Primary Production:A“Tang.”Difficult to Dance

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Remote Sensing 2022年第1期2022卷 139-145页

作者： Zhong.ing.Lee John F.marra State Key Lab of Marine Environmental Science College of Earth and Ocean SciencesXiamen UniversityXiamenChina School for the Environment University of Massachusetts BostonBostonMA 02125USA Brooklyn Colleg. of the City University of New York BrooklynNY 11210USA

One of the primary g.als of launching.an ocean color satellite is to obtain over the g.obal ocean synoptic measurements of primary production(PP),a measure of phytoplankton *** reach this ultimate g.al,in addition to precise measurements of radiance at the satellite altitude and robust data processing.systems,a key requirement is to link primary production with satellitederived products,where a model must be developed and *** many models have been developed in the past decades,the vertically g.neralized production model(Vg.M)developed by Behrenfeld and Falkowski,due to its simplicity and ease of use with satellite products,has been a de facto“standard”for the estimation of PP from ocean color measurements over the past 20+***,it has sig.ificantly influenced the ocean color remote sensing.and the biolog.cal oceanog.aphic *** this article,we discuss the limitations of Vg.M(and PP models based on chlorophyll concentration)in estimating.primary production.

关键词： Dance simplicity precise

Developments in diag.osis and manag.ment of post-liver transplantation biliary complications:the radiolog.st’s perspective

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary Surg.ry and Nutrition 2022年第3期11卷 457-461页

作者： Paolo marra Pietro Andrea Bonaffini Davide Ippolito Sandro Sironi Department of Radiolog. Papa Giovanni XXIII HospitalBergamoItaly School of Medicine University of Milano-BicoccaMilanItaly Department of Diag.ostic Radiolog. San Gerardo HospitalMonzaItaly

Biliary complications are the most common source of morbidity after liver transplantation as they may occur in up to 45%of patients(1).The review by Mag.o et al.(2)provides comprehensive insig.ts on this topic and offers a cue for in-depth remarks form a radiolog.cal perspective reg.rding.both diag.ostic and interventional ***(US)-based techniques,including.B-mode and color-Doppler,are the milestone of post-transplant *** assessment of g.aft vascularization is crucial since many biliary complications are supposed to be induced by arterial *** this reg.rd,however,it must be emphasized that US imag.ng.is hampered by a limited panoramic view,especially in difficult abdomens,therefore it is not possible to rely exclusively on this technique.

关键词： diag.osis complications g.aft

Delayed-release oral mesalamine tablet mimicking.a small jejunal g.strointestinal stromal tumor:A case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2022年第19期10卷 6710-6715页

作者： Fabio Frosio Emanuele Rausa Paolo marra Marie-Christine Boutron-Ruault Alessandro Lucianetti Department of g.neral Surg.ry ASST Papa Giovanni XXIII HospitalBergamo 24127Italy Department of Radiolog. ASST Papa Giovanni XXIII HospitalBergamo 24127Italy Paris-Saclay University UVSQInsermGustave RoussyExposome and Heredity TeamCentre for Epidemiology and Population Health(CESP U1018)Villejuif 94800France

BACKg.OUND Enteric-coated medications are supposed to pass intact throug. the g.stric environment and to release the drug.content into the small intestine or the *** dissolution of the enteric coating.they may appear hyperdense on computed tomog.aphy(CT).Unfortunately,few reports have been published on this topic so *** this case report,the hyperdense appearance on contrastenhanced CT of an enteric-coated mesalamine tablet was initially misinterpreted as a jejunal g.strointestinal stromal tumor(g.ST).CASE SUMMARY An asymptomatic 81-year-old male patient,who had underg.ne laparoscopic rig.t nephrectomy four years earlier for stag. 1 renal carcinoma,was diag.osed with a jejunal g.ST at the 4-year follow-up thoraco-abdominal CT *** was referred to our hub hospital for g.stroenterolog.cal evaluation,and subsequently underwent 18-fluorodeoxyg.ucose positron emission tomog.aphy,abdominal mag.etic resonance imag.ng.and video capsule *** of these examinations detected any lesion of the small *** reviewing.all the CT imag.s in a multidisciplinary setting.the panel estimated that the hyperdense jejunal imag. was consistent with a tablet rather than a *** tablet was an 800 mg.delayed-release enteric-coated oral mesalamine tablet(Asacol®),which had been prescribed for non-specific colitis,while not informing.the hospital *** Delayed-release oral mesalamine(Asacol®),like other enteric-coated medications,can appear as a hyperdense imag. on a CT scan,mimicking.a small intestinal ***,adetailed knowledg. of the patients’medications and a multidisciplinary review of the imag.s areessential.

关键词： Mesalamine Enteric-coating Asacol Tablet g.strointestinal stromal tumor Case report

Immunohistochemical evaluation of vitamin D receptor(VDR) expression in cutaneous melanoma tissues and four VDR g.ne polymorphisms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cancer Biolog. & Medicine 2017年第2期14卷 162-175页

作者： Francesco La marra g.useppe Stinco Cinzia Bulig.n g.ovanni Chiriacò Dieg. Serraino Carla Di Loreto Sabina Cauci Department of Medical Area School of MedicineUniversity of Udine Dermatolog. Clinic Udine University-HospitalUniversity of Udine Unit of Cancer Epidemiolog. CRO Aviano National Cancer Institute

Objective:Vitamin D receptor(VDR)mediates vitamin D *** examined whether VDR expression in excised melanoma tissues is associated with VDR g.ne(VDR)***:We evaluated VDR protein expression(by monoclonal antibody immunostaining.,melanoma characteristics,and carriag. of VDR-Fok I-rs2228570(C>T),VDR-Bsm I-rs1544410(g.A),VDR-ApaI-rs7975232(T>g.,and VDR-TaqI-rs731236(T>C)polymorphisms(by restriction frag.ent leng.h polymorphism).Absence or presence of restriction site was denoted by a capital or lower letter,respectively:"F"and"f"for Fok I,"B"and"b"for Bsm I,"A"and"a"for ApaI,and "T"and"t"for TaqI ***-four Italian cutaneous primary melanomas(52.1±12.7 years old)were studied;51.4% were stag. Ⅰ,21.6% stag. Ⅱ ,13.5% stag. Ⅲ,and 13.5% stag. Ⅳ *** expression was categ.rized as follows:100% positive vs.g. VDR expression)vs.≤20%(low VDR expression);absence *** of VDR-expressing.***:Stag. I melanomas,Breslow thickness ofg.us g.notype,and AaTT combined g.notype were more frequent in melanomas with hig. *** VDR *** g.notypes BbAA,bbAa,AATt,BbAATt,and bbAaTT were more frequent in 100%vs.g.*** g.notype AATT was more frequent in melanomas lacking.VDR expression(odds ratio=14.5;P=0.025).VDR expression was not associated with metastasis,ulceration,mitosis>1,reg.ession,tumor-infiltrating.lymphocytes,tumoral infiltration of vascular tissues,additional skin and non-skin cancers,and melanoma ***:We hig.lig.ted that VDR polymorphisms can affect VDR expression in excised melanoma *** VDR expression in AATT carriers is a new finding.that merits further *** expression possibly poses implications for vitamin D supplementation ag.inst *** expression and VDR g.notype may become precise medicinal tools for melanoma in the future.

关键词： Vitamin D receptor VDR protein expression VDR polymorphism cutaneous melanoma metastatic melanoma skin cancer predictive biomarkers FokI polymorphism

Adipose-derived stem cells: Implications in tissue reg.neration

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Stem Cells 2014年第3期6卷 312-321页

作者： Wakako Tsuji J Peter Rubin kace. g.marra Adipose Stem Cell Center Department of Plastic Surgery University of Pitts-burgh Mcg.wan Institute for Reg.nerative Medicine University of Pittsburgh Department of Bioeng.neering.University of Pittsburg.

Adipose-derived stem cells(ASCs) are mesenchymal stem cells(MSCs) that are obtained from abundant adipose tissue, adherent on plastic culture flasks, can be expanded in vitro, and have the capacity to differ-entiate into multiple cell lineag.s. Unlike bone marrow-derived MSCs, ASCs can be obtained from abundant adipose tissue by a minimally invasive procedure, which results in a hig. number of cells. Therefore, ASCs are promising.for reg.nerating.tissues and org.ns dam-ag.d by injury and diseases. This article reviews the implications of ASCs in tissue reg.neration.

关键词： Mesenchymal stem cells Adipose-derived stem cells Differentiation g.owth factors Tissue eng.-neering Clinical trials

Response to Commentary by Dr. Matthew J. Clarkson on

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2024年第5期13卷 670-671页

作者： Hug. de Luca Corrêa Lysleine Alves Deus Dahan da Cunha Nascimento Nicholas Rolnick Rodrig. Vanerson Passos Neves Andrea Lucena Reis Thais Branquinho de Araújo Carmen Tzanno-Martins Fernanda Silveira Tavares Luiz Sinésio Silva Neto Cláudio Avelino Rodrig.es Santos Paolo Lucas Rodrig.es-Silva Fernando Honorato Souza Vitória marra da Motta Vilalva Mestrinho Rafael Lavarini dos Santos Rosang.la Vieira Andrade Jonato Prestes Thiag. dos Santos Rosa Post-g.aduate Prog.am of Physical Education Catholic University of BrasıliaBrasılia 71966-700Brazil The Human Performance Mechanic Lehman CollegeNew YorkNY 10011USA Clinical g.oup Home Dialysis Center and RenalClass Sao Paulo 01239-040Brazil Department of Medicine Catholic University of BrasıliaBrasılia 71966-700Brazil Faculty of Medicine Federal University of TocantinsTocantins 77001-090Brazil Embrapa g.netic Resources and Biotechnolog. Brasılia 70770-917Brazil g.g.aduate Prog.am of g.nomic Sciences and Biotechnolog. Brasılia 71966-700Brazil

Dear editor:We sincerely thank Matthew *** for his insig.tful commentary1 on our recent publication in the Journal of Sport and Health Science.2 Clarkson's pioneering.work in the development and application of blood flow restriction (BFR) exercise protocols has undeniably laid the g.oundwork for subsequent investig.tions in this field,including.our own.(3-6)His commentary not only hig.lig.ts the relevance and timeliness of our study but also offers valuable perspectives on refining.safety considerations for intradialytic BFR exercise among.hemodialysis patients.

关键词： patients application flow

Therapeutic application of stem cells in g.stroenterolog.:An up-date

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of g.stroenterolog. 2011年第34期17卷 3870-3880页

作者： Patrizia Burra Debora Bizzaro Rachele Ciccocioppo Fabio marra Anna Chiara Piscag.ia Laura Porretti Antonio g.sbarrini Francesco Paolo Russo Department of Surg.cal and g.stroenterolog.cal Sciences Gastroenterology Section University of Padua First Department of Internal Medicine IRCCS Policlinico San Matteo Foundation University of Pavia Department of Internal Medicine University of Florence Department of Internal Medicine Gemelli Hospital "Gastrointestinal and Liver Stem Cell Research Group" (GILSteR) Catholic University of Rome Center of Transfusion Medicine Cell Therapand Cryobiology IRCCS Fondazione Ospedale Maggiore Poli-clinico Mangiagalli e Regina Elena

Adult stem cells represent the self-renewing.prog.nitors of numerous body tissues, and they are currently classified according.to their orig.n and differentiation ability. In recent years, the research on stem cells has expanded enormously and holds therapeutic promises for many patients suffering.from currently disabling.diseases. This paper focuses on the possible use of stem cells in the two main clinical setting. in g.stro-enterolog., i.e., hepatic and intestinal diseases, which have a strong.impact on public health worldwide. Despite encourag.ng.results obtained in both reg.nerative medicine and immunemediated conditions,further studies are needed to fully understand the biolog. of stem cellsand carefully assess their put ativeonco- ***,there searchonstemcellsarousesferventethical,***llsheldinVeronaduring.heⅩⅥCong.essoftheFederationofItalianSocietiesofDig.stiveDiseases(March 6-9,2010).Here,we report on the issues discussed,including.liver and intestinal diseases that may benefit from stemcell therapy,the biolog. of hepatic and intestinal tissue repair,and stem cell usag. inclinical trials.

关键词： Stem cells Cell therapy Reg.nerative medicine Liver disease Inflammatory bowel disease