Results 51 to 60 of about 15,695 (155)

Evolutionary insights into bilin biosynthesis: Functional characterization of pre‐PcyA enzymes

Protein Science, Volume 35, Issue 9, September 2026.
Abstract Biosynthesis of the linear tetrapyrrole phycocyanobilin (PCB) by the ferredoxin‐dependent bilin reductase (FDBR) PcyA is essential for light‐harvesting and regulatory processes in diverse photosynthetic organisms, yet its evolutionary origins are not fully understood. PcyA evolved from pre‐PcyA proteins found in diverse bacteria.
Federica Frascogna, Nathan C. Rockwell, Gunhild Layer, Nicole Frankenberg‐Dinkel   +3 more
wiley   +1 more source

5-aminolevulinic Acid and Surgical Margin Analysis in Calvarial Metastasis with Pericranium or Dural Extension: Technical Note

Brazilian Neurosurgery, 2020
Metastasis to the calvarium with direct pericranium or dural infiltration may be treated with radical surgical removal in selected cases. We describe microsurgical resection of calvarial metastases with fluorescence-guided technique using 5 ...
Erasmo Barros da Silva Junior, Joseph Franklin Chenisz da Silva, Maurício Coelho Neto, Marcella Santos Cavalcanti, Ricardo Ramina   +4 more
doaj   +1 more source

Combined 5‐aminolevulinic acid and ferric ammonium citrate treatment promotes hair follicle growth by activating dermal papilla cells

FEBS Open Bio, Volume 16, Issue 8, Page 1527-1536, August 2026.
5‐Aminolevulinic acid combined with ferric ammonium citrate (5‐ALA/FAC) stimulates dermal papilla cell activity and promotes hair follicle growth. The treatment enhances ERK and AKT signaling, increases hair‐inductive gene expression, and restores dermal papilla function suppressed by dihydrotestosterone and oxidative stress, resulting in enhanced hair
Han‐Wook Ryu, Eok‐Soo Oh, Sewoon Kim
wiley   +1 more source

EFFECT OF IRON NANO CHELATE ON ANTIOXIDANT ACTIVITY, POLYPHENOLIC CONTENTS AND ESSENTIAL OIL COMPOSITION OF PORTULACA OLERACEA L.

Acta Scientiarum Polonorum: Hortorum Cultus, 2018
In the present study, using ultrasonic irradiations, a novel nano-sized iron complex has been prepared from aminolevulinic acid and iron(III) nitrate under greenhouse conditions.
Vahid Tavallali
doaj   +1 more source

Comparison of Dried Blood Spot Sampling Methods for RNA‐Based Biomarker Measurement in Anti‐Doping

Drug Testing and Analysis, Volume 18, Issue 8, Page 959-966, August 2026.
This study demonstrates that RNA‐based biomarkers of erythropoiesis, ALAS2 and CA1, can be reliably quantified across commonly used DBS sampling matrices, including venous and capillary blood spotted on cellulose cards and the Tasso‐M20 device. ABSTRACT Dried blood spot (DBS) sampling offers logistical advantages, but it remains unexplored whether ...
Jacob Bejder, Corentin Schlechten, Claudia Mumenthaler, Olivier Salamin, Tiia Kuuranne, Thomas Christian Bonne, Jonathan Graae, Henrik Sørensen, Nikolai B. Nordsborg, Nicolas Leuenberger   +9 more
wiley   +1 more source

Efficacy and Safety of 5-Aminolevulinic Acid for Patients with Symptoms of Late-Onset Hypogonadism: A Preliminary Study

The World Journal of Men's Health, 2022
Purpose:Purpose: As the concept of late-onset hypogonadism (LOH) has gained increased attention, the treatment of eugonadal patients with LOH symptom has become a clinical problem.
Hiroki Koyasu, Shigeo Horie, Kazuhito Matsushita, Takeshi Ashizawa, Satoru Muto, Shuji Isotani, Tohru Tanaka, Motowo Nakajima, Akira Tsujimura   +8 more
doaj   +1 more source

Electrochemical Chlorination of Levulinic Acid

Electrochemical Science Advances, Volume 6, Issue 4, August 2026.
ABSTRACT Levulinic acid is a cellulose‐derived, sustainable feedstock with significant potential for use in renewable, carbon‐based polymer and chemical synthesis. In this work, electrochemical chlorination has been investigated as a method for preparing chlorinated levulinic acid derivatives, which can serve as valuable intermediates for the synthesis
Ananda S. Amarasekara, M. A. G. K. Manchanayake   +1 more
wiley   +1 more source

Blue Light Aminolevulinic Acid Photodynamic Therapy Did Not Induce Detectable CPD or 6–4PP Photolesions in Human Dermal Fibroblasts

Journal of Biophotonics, Volume 19, Issue 8, August 2026.
This study demonstrates that combination BL and 5‐ALA PDT does not induce detectable levels of CPD or 6–4PP photolesions in human dermal fibroblasts in vitro. Our findings contribute to the lesion‐specific genotoxic safety profile of blue light photodynamic therapy, an established research topic.ABSTRACTPhotodynamic therapy (PDT) is an established ...
Julia Stolyar, Evan Austin, Olumide M. Arigbede, Jared Jagdeo   +3 more
wiley   +1 more source

Effects of δ‐aminolevulinic acid dehydratase silencing on the primary and secondary metabolisms of citrus

Plant Direct, 2018
δ‐aminolevulinic acid dehydratase (ALAD) is an important enzyme in tetrapyrrole synthesis. ALAD combines two δ‐aminolevulinic acid (δ‐ALA) molecules to form the pyrrole molecule, porphobilinogen, an important precursor for plant pigments involved in ...
Nabil Killiny, Faraj Hijaz, Yasser Nehela, Subhas Hajeri, Siddarame Gowda   +4 more
doaj   +1 more source

Photodynamic therapy with methyl aminolevulinate in the treatment of basal cell carcinoma

Vestnik Dermatologii i Venerologii, 2017
The article presents the results of the studies on the effectiveness of treatment basal cell carcinoma of the skin with photodynamic therapy with 5-aminolevulinic acid and methyl aminolevulinate.
A. A. Kubanov, I. N. Kondrakhina, N. V. Gribanov   +2 more
doaj   +1 more source