Results 21 to 30 of about 24,019 (190)
BMC Plant Biology, 2023 Background Salt stress severely restricts rapeseed growth and productivity. Hemin can effectively alleviate salt stress in plants. However, the regulatory effect of Hemin on rapeseed in salt stress is unclear.
Hui-Min Zhao +8 more
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Binding and accumulation of hemin in Porphyromonas gingivalis are induced by hemin [PDF]
Infection and Immunity, 1994 Although hemin is an essential nutrient for the black-pigmented oral bacterium Porphyromonas gingivalis, the mechanisms involved in hemin binding and uptake are poorly defined. In this study, we have examined the binding of hemin and Congo red (CR) to P. gingivalis whole cells and have defined the conditions for maximal binding.
C A, Genco, B M, Odusanya, G, Brown
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Interaction of low-density lipoproteins of serum with hemin*†
Journal of Lipid Research, 1962 The interaction of low-density lipoproteins of human serum with hemin and the nature of the oxidative denaturation of low-density lipoproteins of serum catalyzed by hemin was studied by means of spectrophotometric and ultracentrifugal analyses and by ...
Toshiro Nishida, Fred A. Kummerow
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Nanoscale Research Letters, 2019 Hemin is a potent iron supplement. A major limitation of the applicability of hemin is its extremely low aqueous solubility and bioavailability. The aim of this work is to prepare hemin nanoparticles with improved solubility.
Jie Yang +6 more
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Stabilizing Functional Nucleic Acids for Real‐Sample Diagnostics
Angewandte Chemie, EarlyView.Functional nucleic acids enable programmable real‐sample diagnostics, but often lose function in complex biological matrices. This review highlights four stabilization levers—chemical, topological, architectural, and microenvironment/interface engineering—that preserve aptamer and DNAzyme performance in saliva, serum, urine, and stool, reframing ...
Soyeon Lee +4 more
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Hemin uptake in Porphyromonas gingivalis: Omp26 is a hemin-binding surface protein [PDF]
Journal of Bacteriology, 1993 A 26-kDa outer membrane protein (Omp26) has been proposed to play a role in hemin acquisition by Porphyromonas gingivalis (T. E. Bramanti and S. C. Holt, J. Bacteriol. 174:5827-5839, 1992). We studied [55Fe]hemin uptake in P. gingivalis grown under conditions of hemin starvation (Omp26 expressed on the outer membrane surface) and hemin excess (Omp26 ...
T E, Bramanti, S C, Holt
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Interactions of hemin, antimalarial drugs and hemin-antimalarial complexes with phospholipid monolayers [PDF]
Chemistry and Physics of Lipids, 1984 Hemin, antimalarial drugs and complexes formed between them, have demonstrable effects on biological membranes. Using the phospholipid monolayer model, we show that hemin intercalates into the membrane and increases its surface pressure, depending on the lipid composition and the initial surface pressure: negative surface charges and particularly ...
Ginsburg, H., Demel, R.A.
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mSystems, 2023 Periodontal disease is a chronic inflammatory disease in which the oral pathogen Porphyromonas gingivalis plays an important role. Porphyromonas gingivalis expresses virulence determinants in response to higher hemin concentrations, but the underlying ...
Ricardo Costeira +9 more
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Microbiology SpectrumIn the previous study, it was shown that Riemerella anatipestifer (R. anatipestifer, RA), a pathogen in ducks and some other birds, encodes a hemin uptake system. The R.
Mengying Wang +12 more
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HemU and TonB1 contribute to hemin acquisition in Stenotrophomonas maltophilia
Frontiers in Cellular and Infection MicrobiologyIntroductionThe hemin acquisition system is composed of an outer membrane TonB-dependent transporter that internalizes hemin into the periplasm, periplasmic hemin-binding proteins to shuttle hemin, an inner membrane transporter that transports hemin into
Chun-Hsing Liao +7 more
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