Results 111 to 120 of about 27,628 (212)
Abstract We describe a method for simultaneously measuring concentrations of coproporphyrin, zinc protoporphyrin IX, and protoporphyrin IX in whole blood by liquid chromatography, with use of reversed-phase ion-pair system, fluorometric detection, and internal standardization.
G R, Gotelli +3 more
openaire +2 more sources
Background & Aims: Porphyrias are caused by porphyrin accumulation resulting from defects in the heme biosynthetic pathway that typically lead to photosensitivity and possible end-stage liver disease with an increased risk of hepatocellular carcinoma ...
Dhiman Maitra +12 more
doaj +1 more source
Fluorescence diagnosis of metastatic lymph nodes using 5-aminolevulinic acid (5-ALA) in a mouse model of colon cancer. [PDF]
[Background]Lymph node metastasis is one of the most critical prognostic factors in patients with colorectal cancer. Although regional lymph nodes should be surgically resected and pathologically examined, techniques for the intraoperative diagnosis of ...
Hasegawa, Suguru +4 more
core +1 more source
Cy Hyun Kim1,2, Chung-Wook Chung1, Kyung Ha Choi1, Jin-Ju Yoo1, Do Hyung Kim1,2, Young-IL Jeong1, Dae Hwan Kang1,21National Research and Development Center for Hepatobiliary Cancer, Research Institute for Convergence of Biomedical Science and Technology,
Kang DH +6 more
doaj
Absence of the cbb3 terminal oxidase reveals an active oxygen-dependent cyclase involved in bacteriochlorophyll biosynthesis in Rhodobacter sphaeroides. [PDF]
The characteristic green color associated with chlorophyll pigments results from the formation of an isocyclic fifth ring on the tetrapyrrole macrocyle during the biosynthesis of these important molecules.
Canniffe, D.P. +3 more
core +2 more sources
Electronic and optical properties of 5-AVA-functionalized BN nanoclusters: A DFT study [PDF]
We carried out detailed density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations upon 5-aminolevulinic acid-functionalized B12N12 and B16N16 nanoclusters with the B3LYP, B3PW91, and PBE methods using the 6-311+G∗∗
Balakheyli, H. +4 more
core +1 more source
Synthesis of new derivatives of protoporphyrin IX
In the course of searching new highly active substances which are prospective for treating tumors and some other types of widespread diseases the synthesis of protoporphyrin IX bearing the benzodiazepine residue, was performed.
V. Yu. Pavlov +2 more
doaj
Physiology of purple sulfur bacteria forming macroscopic aggregates in Great Sippewissett Salt Marsh, Massachusetts [PDF]
Purple bacterial aggregates found in tidal pools of Great Sippewissett Salt Marsh (Falmouth, Cape Cod, MA) were investigated in order to elucidate the ecological significance of cell aggregation. Purple sulfur bacteria were the dominant microorganisms in
Angelica P. Seitz +23 more
core +1 more source
Mechanism of Penoxsulam’s Effect on Chlorophyll Synthesis and the Metabolism of Foxtail Millet
Foxtail millet is a characteristic miscellaneous grain crop with many benefits in current agricultural production and is crucial in the adjustment of the planting structure and the sustainable development of dry farming.
Tingting Chen +9 more
doaj +1 more source
Intraoperative fluorescence diagnosis in patients with brain metastases (medical technology)
The technique of intraoperative fluorescence diagnosis with alasens for brain metastases includes visual assessment of alasens-induced protoporphyrin IX fluorescence and local spectroscopy.
A. M. Zaytsev +2 more
doaj

