Electrochemistry of Protoporphyrin IX Compared to Synthetic Models

1982 ◽  
pp. 313-332 ◽  
Author(s):  
KAREY L. HOLLAND ◽  
JOSEPH JORDAN
Keyword(s):  
Protoporphyrin Ix ◽  
Synthetic Models

Protoporphyrin-IX Fluorescence in Skull Base Meningiomas' Resection

2013 ◽  
Vol 74 (S 01) ◽  
Author(s):  
Tang ManHon ◽  
Carol Goodman ◽  
Harry Moseley ◽  
Sam Eljamel
Keyword(s):  
Skull Base ◽  
Protoporphyrin Ix ◽  
Skull Base Meningiomas

Protoporphyrin IX Fluorescence Photobleaching and the Response of Rat Barrett's Esophagus Following 5-aminolevulinic Acid Photodynamic Therapy

2006 ◽  
Vol 82 (6) ◽  
pp. 1638 ◽  
Author(s):  
Ingrid A. Boere ◽  
Dominic J. Robinson ◽  
Henriette S. de Bruijn ◽  
Jolanda Kluin ◽  
Hugo W. Tilanus ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Barrett’S Esophagus ◽  
Barrett's Esophagus ◽  
Aminolevulinic Acid ◽  
Protoporphyrin Ix

Kinetics of protoporphyrin IX formation in rat oral mucosa and skin after application of 5-aminolevulinic acid and its methylester

2004 ◽  
Author(s):  
Stefan Kristiansson ◽  
Asta Juzeniene ◽  
Petras Juzenas ◽  
Vladimir Iani ◽  
Lennart Löfgren ◽  
...  
Keyword(s):  
Oral Mucosa ◽  
Aminolevulinic Acid ◽  
Protoporphyrin Ix ◽  
Kinetics Of

Structure Revision of Protoaculeine B, a Posttranslationally Modified N-Terminal Residue in the Peptide Toxin Aculeine B

2020 ◽  
Author(s):  
Raku Irie ◽  
Kei Miyako ◽  
Satoko Matsunaga ◽  
Ryuichi Sakai ◽  
Masato Oikawa
Keyword(s):  
Mass Spectra ◽  
Chemical Reactivity ◽  
Model Compounds ◽  
Structural Revision ◽  
Structure Revision ◽  
Peptide Toxin ◽  
One Step ◽  
Marine Peptide ◽  
Synthetic Models ◽  
Long Chain

<div>Here, we newly propose the structure of protoaculeine B, an N-terminal moiety of the marine peptide toxin aculeine B, as possessing the cis-disubstituted tetrahydro-beta-carboline framework. We prepared two truncated model compounds that lack long-chain polyamine by one-step Pictet-Spengler reaction of tryptophan, and compared the NMR and mass spectra and chemical reactivity with those of natural protoaculeine B. The synthetic models reproduced the profiles of the natural product well, which was conclusive for the structural revision.</div>

FITOTOKSISITAS KINERJA HERBISIDA OKSIFLOURFEN DAN GLIFOSAT PADA KACANG FABA (Vicia faba L.)

2020 ◽  
Vol 4 (1) ◽  
pp. 1-9
Author(s):  
Achmad Yozar Perkasa
Keyword(s):  
Vicia Faba ◽  
Protoporphyrin Ix ◽  
Vicia Faba L

Penelitian ini dilakukan di Laboratorium Farmakologi Fakultas Pertanian Universitas Thessaly dengan membahas efek herbisida oksifluorfen, glifosat terhadap tanaman kacang faba. Herbisida oksifluorfen mengandung bahan aktif oksifluorfen yang termasuk dalam kelompok kimia eter difenil. Mekanisme kerja herbisida ini adalah menargetkan enzim protoporphyrogen oksidase (Protox) dan protoporphyrin IX (Protogen IX). Pengamatan dilakukan dengan tujuan mengetahui dan mengevaluasi fitotoksisitas aplikasi herbisida terhadap tanaman kacang faba. Hasil penelitian menunjukkan aplikasi herbisida oksifluorfen dan glifosat masing-masing menunjukkan gejala fitotoksisitas secara jelas pada minggu ke-2 setelah aplikasi pada tanaman kacang faba. Hasil ini berhubungan dengan kandungan bahan aktif dan mekanisme mode aksi herbisida tersebut, serta kondisi lingkungan, faktor yang paling berpengaruh adalah suhu.

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