GLORIA

GEOMAR Library Ocean Research Information Access

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    In: PLoS ONE, Public Library of Science (PLoS), Vol. 7, No. 10 ( 2012-10-16), p. e47227-
    Materialart: Online-Ressource
    ISSN: 1932-6203
    Sprache: Englisch
    Verlag: Public Library of Science (PLoS)
    Publikationsdatum: 2012
    ZDB Id: 2267670-3
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    In: Frontiers in Drug Discovery, Frontiers Media SA, Vol. 2 ( 2022-12-7)
    Kurzfassung: Malaria poses several challenges to the global research community on both diagnostic and therapeutic fronts. Most prominent of them are deletion of target genes (pfhrp2/3) used in rapid diagnostic tests (RDTs) and the emergence of resistance against frontline antimalarials by the evolving parasite. Exploration of novel therapeutics for malaria in view of limited vaccine options is a promising resort for malaria control and elimination. The scope of marine-derived chemotherapeutics is exciting, with a significant number of FDA-approved drugs or therapeutic leads under clinical trials for other diseases. This review article discusses the significant antimalarial potential of marine-derived natural products extracted from diverse biota including sponges, bacteria, sea hare and algae etc. Bioassay-guided fractionation of raw extracts from marine organisms for lead identification and further structural characterization of purified compounds compose a sustainable marine-derived drug discovery pipeline; which can be particularly diverted towards the exploration of antimalarials. It is to be noted that the Indian peninsula is largely unexplored, particularly for antimalarials screening; which has a huge marine biodiversity owing to the three distinct water bodies- Bay of Bengal, Indian Ocean and Arabian sea. This review also envisions a collaborative initiative to explore the potential of marine natural products in an economically feasible manner.
    Materialart: Online-Ressource
    ISSN: 2674-0338
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2022
    ZDB Id: 3123815-4
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    In: FEBS Open Bio, Wiley, Vol. 11, No. 3 ( 2021-03), p. 578-587
    Kurzfassung: Substrate specificity of an enzyme is an important characteristic of its mechanism of action. Investigation of the nucleotide specificity of Plasmodium falciparum succinyl‐CoA synthetase (SCS; Pf SCS) would provide crucial insights of its substrate recognition. Charged gatekeeper residues have been shown to alter the substrate specificity via electrostatic interactions with approaching substrates. The enzyme kinetics of recombinant Pf SCS (wild‐type), generated by refolding of the individual P. falciparum SCSβ and Blastocystis SCSα subunits, demonstrated ADP‐forming activity ( K mATP  = 48 µ m ). Further, the introduction of charged gatekeeper residues, either positive (Lys and Lys) or negative (Glu and Asp), resulted in significant reductions in the ATP affinity of Pf SCS. It is interesting to note that the recombinant Pf SCSβ subunit can be refolded to a functional enzyme conformation using Blastocystis SCSα, indicating the possibility of subunits swapping among different organisms. These results concluded that electrostatic interactions at the gatekeeper region alone are insufficient to alter the substrate specificity of Pf SCS, and further structural analysis with a particular focus on binding site architecture is required.
    Materialart: Online-Ressource
    ISSN: 2211-5463 , 2211-5463
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2021
    ZDB Id: 2651702-4
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    In: Journal of Biomolecular Structure and Dynamics, Informa UK Limited, Vol. 40, No. 5 ( 2022-03-24), p. 2369-2388
    Materialart: Online-Ressource
    ISSN: 0739-1102 , 1538-0254
    Sprache: Englisch
    Verlag: Informa UK Limited
    Publikationsdatum: 2022
    ZDB Id: 2085732-9
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    Online-Ressource
    Online-Ressource
    American Veterinary Medical Association (AVMA) ; 2008
    In:  Journal of the American Veterinary Medical Association Vol. 232, No. 10 ( 2008-05-15), p. 1530-1535
    In: Journal of the American Veterinary Medical Association, American Veterinary Medical Association (AVMA), Vol. 232, No. 10 ( 2008-05-15), p. 1530-1535
    Kurzfassung: Objective —To determine whether 6.5-week-old gilts that have not previously been exposed to porcine reproductive and respiratory syndrome (PRRS) virus can be acclimatized to an endemic strain of the virus by commingling with age-matched gilts inoculated with the endemic PRRS virus strain and whether 10.5-week-old gilts can be acclimatized by commingling with age-matched inoculated or contact-exposed animals. Design —Randomized controlled longitudinal study. Animals —80 gilts seronegative for PRRS on a farm in the Midwestern United States with a history of PRRS. Procedures —20 gilts were inoculated with the endemic PRRS virus strain at 6.5 weeks of age (group 1) and were commingled with 20 gilts that were not inoculated (group 2). Four weeks later, the remaining 40 gilts (group 3) were commingled with gilts in groups 1 and 2. Presence of viral RNA in the tonsils, seroconversion rate, serum neutralizing antibody titers, interferon-γ-mediated cellular immunity, and reproductive outcomes were analyzed. Results —Acclimatization of PRRS virus-naïve pigs was achieved by means of contact exposure at both 6.5 and 10.5 weeks of age. No differences were observed among the 3 groups with respect to development of anti-PRRS virus-specific immune responses or reproductive outcomes. Conclusions and Clinical Relevance —Results suggested that contact exposure of 6.5- to 10.5-week-old pigs that had not previously been exposed to PRRS virus to pigs inoculated with endemic PRRS virus may be an efficient acclimatization strategy for controlling outbreaks on commercial farms on which PRRS is endemic.
    Materialart: Online-Ressource
    ISSN: 0003-1488
    Sprache: Unbekannt
    Verlag: American Veterinary Medical Association (AVMA)
    Publikationsdatum: 2008
    ZDB Id: 2904887-4
    SSG: 22
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 6
    Online-Ressource
    Online-Ressource
    Frontiers Media SA ; 2023
    In:  Frontiers in Veterinary Science Vol. 10 ( 2023-1-26)
    In: Frontiers in Veterinary Science, Frontiers Media SA, Vol. 10 ( 2023-1-26)
    Kurzfassung: The imminent risk of zoonoses of non-human malaria parasites is not far from reality in India, as has been observed in the case of Plasmodium knowlesi (Pk), and so is possible with P. cynomolgi (Pc), already reported from South East Asian countries. Therefore, a novel multiplex qPCR assay was developed and evaluated for detection of non-human malaria parasites- Pk and Pc in populations at risk. Methods The qPCR primers were designed in-house with fluorescence labeled probes (HEX for Pk and FAM for Pc). DNA samples of Pk and Pc were used as templates and further the qPCR assay was evaluated in 250 symptomatic and asymptomatic suspected human blood samples from malaria endemic areas of North Eastern states of India. Results The qPCR assay successfully amplified the target 18S rRNA gene segment from Pk and Pc and was highly specific for Pk and Pc parasites only, as no cross reactivity was observed with P. falciparum (Pf), P. vivax (Pv), P. malariae (Pm), and P. ovale (Po). Standard curves were generated to estimate the limit of detection (LOD) of Pk and Pc parasites DNA (0.00275 & amp; 0.075 ng/μl, respectively). Due to COVID-19 pandemic situation during 2020–21, the sample accessibility was difficult, however, we managed to collect 250 samples. The samples were tested for Pf and Pv using conventional PCR- 14 Pf and 11 Pv infections were observed, but no Pk and Pc infections were detected. For Pk infections, previously reported conventional PCR was also performed, but no Pk infection was detected. Discussion The multiplex qPCR assay was observed to be robust, quick, cost-effective and highly sensitive as compared to the currently available conventional PCR methods. Further validation of the multiplex qPCR assay in field setting is desirable, especially from the high-risk populations. We anticipate that the multiplex qPCR assay would prove to be a useful tool in mass screening and surveillance programs for detection of non-human malaria parasites toward the control and elimination of malaria from India by 2030.
    Materialart: Online-Ressource
    ISSN: 2297-1769
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2023
    ZDB Id: 2834243-4
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 7
    Online-Ressource
    Online-Ressource
    Elsevier BV ; 2005
    In:  Veterinary Parasitology Vol. 133, No. 1 ( 2005-10), p. 19-25
    In: Veterinary Parasitology, Elsevier BV, Vol. 133, No. 1 ( 2005-10), p. 19-25
    Materialart: Online-Ressource
    ISSN: 0304-4017
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2005
    ZDB Id: 1498947-5
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 8
    Online-Ressource
    Online-Ressource
    SAGE Publications ; 2004
    In:  Experimental Biology and Medicine Vol. 229, No. 9 ( 2004-10), p. 866-875
    In: Experimental Biology and Medicine, SAGE Publications, Vol. 229, No. 9 ( 2004-10), p. 866-875
    Kurzfassung: Because resolving human complex diseases is difficult, appropriate biomedical models must be developed and validated. In the past, researchers have studied diseases either by characterizing a human clinical disease and choosing the most appropriate animal model, or by characterizing a naturally occurring or induced mutant animal and identifying which human disease it best resembled. Although there has been a great deal of progress through the use of these methods, such models have intrinsic faults that limit their relevance to clinical medicine. The recent advent of techniques in molecular biology, genomics, transgenesis, and cloning furnishes investigators with the ability to study vertebrates (e.g., pigs, cows, chickens, dogs) with greater precision and utilize them as model organisms. Comparative and functional genomics and proteomics provide effective approaches for Identifying the genetic and environmental factors responsible for complex diseases and in the development of prevention and treatment strategies and therapeutics. By identifying and studying homologous genes across species, researchers are able to accurately translate and apply experimental data from animal experiments to humans. This review supports the hypothesis that associated enabling technologies can be used to create, de novo, appropriate animal models that recapitulate the human clinical manifestation. Comparative and functional genomic and proteomic techniques can then be used to identify gene and protein functions and the Interactions responsible for disease phenotypes, which aids in the development of prevention and treatment strategies.
    Materialart: Online-Ressource
    ISSN: 1535-3702 , 1535-3699
    Sprache: Englisch
    Verlag: SAGE Publications
    Publikationsdatum: 2004
    ZDB Id: 2020856-X
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 9
    In: BMC Pulmonary Medicine, Springer Science and Business Media LLC, Vol. 20, No. 1 ( 2020-12)
    Kurzfassung: The increasing trend of Chronic Obstructive Pulmonary Disease (COPD) in becoming the third leading cause of deaths by 2020 is of great concern, globally as well as in India. Dysregulation of protease/anti-protease balance in COPD has been reported to cause tissue destruction, inflammation and airway remodelling; which are peculiar characteristics of COPD. Therefore, it is imperative to explore various serum proteases involved in COPD pathogenesis, as candidate biomarkers. COPD and Asthma often have overlapping symptoms and therefore involvement of certain proteases in their pathogenesis would render accurate diagnosis of COPD to be difficult. Methods Serum samples from controls, COPD and Asthma patients were collected after requisite institutional ethics committee approvals. The preliminary analysis qualitatively and quantitatively analyzed various serum proteases by ELISA and mass spectrometry techniques. In order to identify a distinct biomarker of COPD, serum neutrophil elastase (NE) and matrix metalloprotease-2 (MMP-2) from COPD and Asthma patients were compared; as these proteases tend to have overlapping activities in both the diseases. A quantitative analysis of the reactive oxygen species (ROS) in the serum of controls and COPD patients was also performed. Statistical analysis for estimation of p -values was performed using unpaired t-test with 95% confidence interval. Results Amongst the significantly elevated proteases in COPD patients vs the controls- neutrophil elastase (NE) [ P  〈  0.0241 ], caspase-7 [ P  〈  0.0001 ] and matrix metalloprotease-2 (MMP-2) [ P  〈  0.0001 ] were observed, along with increased levels of reactive oxygen species (ROS) [ P  〈  0.0001 ]. The serum dipeptidyl peptidase-IV (DPP-IV) [ P  〈  0.0010 ) concentration was found to be decreased in COPD patients as compared to controls. Interestingly, a distinct elevation of MMP-2 was observed only in COPD patients, but not in Asthma, as compared to controls. Mass spectrometry analysis further identified significant alterations (fold-change) in various proteases (carboxy peptidase, MMP-2 and human leukocyte elastase), anti-proteases (Preg. zone protein, α-2 macroglobulin, peptidase inhibitor) and signalling mediators (cytokine suppressor- SOCS-3). Conclusion The preliminary study of various serum proteases in stable COPD patients distinctly identified elevated MMP-2 as a candidate biomarker for COPD, subject to its validation in large cohort studies.
    Materialart: Online-Ressource
    ISSN: 1471-2466
    Sprache: Englisch
    Verlag: Springer Science and Business Media LLC
    Publikationsdatum: 2020
    ZDB Id: 2059871-3
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 10
    Online-Ressource
    Online-Ressource
    American Society for Microbiology ; 2004
    In:  Journal of Virology Vol. 78, No. 20 ( 2004-10-15), p. 10911-10919
    In: Journal of Virology, American Society for Microbiology, Vol. 78, No. 20 ( 2004-10-15), p. 10911-10919
    Kurzfassung: The transcription map of simian parvovirus (SPV), an Erythrovirus similar to Parvovirus B19, was investigated. RNA was extracted from tissues of experimentally infected cynomolgus macaques and subjected to reverse transcription-PCR with SPV-specific primers. The PCR products were cloned and sequenced to identify splice junctions. A total of 14 distinct sequences were identified as putative partial transcripts. Of these, 13 were spliced; a single unspliced transcript putatively encoded NS1. Sequence analysis revealed that spliced partial transcripts may encode portions of open reading frames for the major capsid proteins VP1 and VP2 and smaller, unknown proteins. These unspliced and spliced transcripts and putative proteins encoded by SPV were similar to those of B19. Initial splice junctions at nucleotides 279 and 333 were analogous to those at nucleotides 406 and 441, respectively, in B19. Seven of the 10 splices identified had typical GT/AG donor/acceptor junctions. The splice sites were confirmed by Northern blotting and autoradiography. In contrast to B19, which has a maximum of two splices per transcript, up to three splices were observed in SPV transcripts. A spliced transcript putatively encoding a truncated version of NS1, as seen with minute virus of mice and adeno-associated virus 2, was also observed. The findings indicate that that the splicing pattern of transcripts of SPV and B19 is similar, but SPV also has coding strategies in common with other parvoviruses.
    Materialart: Online-Ressource
    ISSN: 0022-538X , 1098-5514
    Sprache: Englisch
    Verlag: American Society for Microbiology
    Publikationsdatum: 2004
    ZDB Id: 1495529-5
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...