Results 1 to 10 of about 13,239 (184)
Zn protoporphyrin IX is formed not from heme but from protoporphyrin IX [PDF]
Meat Science, 2007 We examined the effects of exogenous myoglobin, a bivalent chelator, and nitrite on Zn protoporphyrin IX (ZPP) formation by using model systems. ZPP was formed in a model solution without addition of exogenous myoglobin. After incubation, the amount of ZPP in a model solution was increased but that of heme was not decreased compared with the amounts ...
Takanori Nsihimura, Jun-Ichi Wakamatsu
exaly +4 more sources
Simultaneous determination of protoporphyrin IX and magnesium protoporphyrin IX in Arabidopsis thaliana and Camellia sinensis using UPLC-MS/MS [PDF]
Plant Methods, 2023 Backgrounds Insertion of Mg2+ into protoporphyrin IX (PPIX) to produce magnesium-protoporphyrin IX (Mg-PPIX) was the first step toward chlorophyll biosynthesis, which not only imparts plants green pigmentation but underpins photosynthesis.
Chenyu Zhang +3 more
doaj +2 more sources
Foods, 2022 The nitrosyl–heme complex is considered the pigment responsible for the development of reddish colour in cooked hams. However, the same reddish colour was observed in a nitrite-free product elaborated with polyphenols, suggesting the presence of other ...
Claudia Giménez-Campillo +6 more
doaj +3 more sources
Protoporphyrin IX-induced phototoxicity: Mechanisms and therapeutics. [PDF]
Pharmacol Ther, 2023 Protoporphyrin IX (PPIX) is an intermediate in the heme biosynthesis pathway. Abnormal accumulation of PPIX due to certain pathological conditions such as erythropoietic protoporphyria and X-linked protoporphyria causes painful phototoxic reactions of the skin, which can significantly impact daily life.
Hussain Z +4 more
europepmc +3 more sources
Synthetic biology-instructed transdermal microneedle patch for traceable photodynamic therapy
Nature Communications, 2022 5-Aminolevulinic acid-based photodynamic therapy heavily depends on the biological transformation efficiency of 5-aminolevulinic acid to protoporphyrin IX, while the lack of an effective delivery system and imaging navigation are major hurdles in ...
Gang He +7 more
doaj +1 more source
Gold Nanoparticles/Nanographene-Based 3D Sensors Integrated in Mini-Platforms for Thiamine Detection
Sensors, 2022 Vitamins are essential for sustaining daily activities and perform crucial roles in metabolism, such as preventing vascular events and delaying the development of diabetic nephropathy.
Damaris-Cristina Gheorghe +3 more
doaj +1 more source
Animal, 2023 Eggshell colour is the unique appearance and economically valuable trait of eggs, whereas the colour is often short of uniformity, especially in the blue-shelled breeds, hence, their pigment differences and molecular mechanism need clarity.
Huanhuan Wang +6 more
doaj +1 more source
A photosensitizing fusion protein with targeting capabilities
Biomolecular Concepts, 2022 The photodynamic treatment for antimicrobial applications or anticancer therapy relies on reactive oxygen species generated by photosensitizing molecules after absorption of visible or near-infrared light.
Bruno Stefano +8 more
doaj +1 more source
Mechanisms associated with the depigmentation of brown eggshells: a review
Poultry Science, 2021 : Eggshell color is an important shell quality trait that influences consumer preference. It is also of particular importance with respect to sexual signaling and the physiological and mechanical properties of shell pigment.
Ming-Yuan Lu +6 more
doaj +1 more source
Frontiers in Plant Science, 2020 Wheat (Triticum aestivum L.) is one of the most important crops in the world. Chlorophyll plays a vital role in plant development and crop improvement and further determines the crop productivity to a certain extent.
Chaojie Wang +9 more
doaj +1 more source