Results 21 to 30 of about 20,500 (163)

Pale-green phenotype of atl31atl6 double mutant leaves is caused by disruption of 5-aminolevulinic acid biosynthesis in Arabidopsis thaliana.

open access: yesPLoS ONE, 2015
Arabidopsis ubiquitin ligases ATL31 and homologue ATL6 control the carbon/nitrogen nutrient and pathogen responses. A mutant with the loss-of-function of both atl31 and atl6 developed light intensity-dependent pale-green true leaves, whereas the single ...
Shugo Maekawa   +6 more
doaj   +1 more source

Efficacy of fractional CO2 laser combined with 5-aminolevulinic acid photodynamic therapy on actinic keratosis in face

open access: yesPifu-xingbing zhenliaoxue zazhi, 2022
Objective To observe clinical effects and safety of fractional CO2 laser combined with 5-aminolevulinic acid photodynamic therapy (ALA-PDT) on facial actine keratosis (AK).
Ming WANG   +8 more
doaj   +1 more source

A case in which bladder cancer invaded the ureteral orifice and was resected via photodynamic diagnosis‐assisted transurethral resection involving orally administered 5‐aminolevulinic acid

open access: yesIJU Case Reports, 2019
Introduction Transurethral resection of bladder tumor is widely used in combination with photodynamic diagnosis to treat non‐muscle invasive bladder cancer.
Keitaro Watanabe   +12 more
doaj   +1 more source

Silencing of δ‐aminolevulinic acid dehydratase via virus induced gene silencing promotes callose deposition in plant phloem

open access: yesPlant Signaling & Behavior, 2022
The δ-aminolevulinic acid dehydratase (ALAD) enzyme is an intermediate in the biosynthetic pathway of tetrapyrroles. It combines two δ‐aminolevulinic acid (δ‐ALA) molecules to form the pyrrole, porphobilinogen, an important precursor for plant pigments ...
Nabil Killiny   +2 more
doaj   +1 more source

Influence of lead on the chlorophyll content and on initial steps of its synthesis in greening cucumber seedlings

open access: yesActa Societatis Botanicorum Poloniae, 2014
Lead uptake by young cucumber (Couches satires L.) seedlings growing in 10-4 and 10-3 M PbCl2 solution caused δ-aminolevulinic acid synthesis inhibition, reduced the activity of δ-aminolevulinic acid dehydratase and the chlorophyll centent in the ...
Marek Burzyński
doaj   +1 more source

Determination of delta aminolevulinic acid levels in urine; a sensitive indicator of lead exposure in construction workers [PDF]

open access: yesAl Ameen Journal of Medical Sciences, 2020
Background: Occupational exposure is a major source for lead poisoning in adults. Lead toxicity disrupts the functions of the digestive system, nervous system, respiratory system, reproductive system, etc.
Neelam J. Patil   +5 more
doaj  

5-Aminolevulinic acid synthase: mechanism, mutations and medicine

open access: yes, 2003
5-Aminolevulinic acid synthase (ALAS), the first enzyme of the heme biosynthesis pathway, catalyses the pyridoxal 5'-phosphate-dependent condensation between glycine and succinyl-CoA to yield 5-aminolevulinic acid (5-amino-4-oxopentanoate).
Bottomley, S.S.   +11 more
core   +1 more source

Identification of risk factors associated with oral 5-aminolevulinic acid induced adverse events in photodynamic diagnosis−transurethral resection of bladder tumor

open access: yesPhotodiagnosis and Photodynamic Therapy
Background: Oral 5-aminolevulinic acid for transurethral resection of bladder tumor reduces bladder cancer recurrence compared with standard white-light transurethral resection of bladder tumor.
Yu Okabe   +12 more
doaj   +1 more source

Photodynamic Therapy with Aminolevulinic Acid Enhances the Cellular Activity of Cells Cultured on Porcine Acellular Dermal Matrix Membranes Used in Periodontology

open access: yesGels, 2023
This study aims to test a photodynamic protocol based on a gel containing aminolevulinic acid followed by red-LED (ALAD-PDT) irradiation on human gingival fibroblasts (hGFs) and osteoblasts (hOBs) cultured on a porcine acellular dermal matrix membrane ...
Morena Petrini   +8 more
doaj   +1 more source

X-ray structure of a putative reaction intermediate of 5-aminolaevulinic acid dehydratase

open access: yes, 2003
The X-ray structure of yeast 5-aminolaevulinic acid dehydratase, in which the catalytic site of the enzyme is complexed with a putative cyclic intermediate composed of both substrate moieties, has been solved at 0.16 nm (1.6 Å) resolution.
Youell, J.H.   +8 more
core   +1 more source

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