The nucleophilic drug hydralazine strongly inhibits cell toxicity mediated by acrolein, a short chain 2-alkenal formed during lipid peroxidation. We here report the chemistry of acrolein-trapping by hydralazine, and show that together with its structural analogue dihydralazine, it also readily traps crotonaldehyde. Isolable reaction products included (1E)-acrylaldehyde phthalazin-1-ylhydrazone (E-APH), (1Z)-acrylaldehyde phthalazin-1-ylhydrazone (Z-APH), (1E,2E)-but-2-enal phthalazin-1-ylhydrazone (E-BPH) and (1Z,2E)-but-2-enal phthalazin-1-ylhydrazone (Z-BPH). Concentration-dependent formation of (1E)-acrylaldehyde phthalazin-1-ylhydrazone was observed in the culture media of cells co-exposed to hydralazine and the acrolein precursor allyl alcohol. These aldehyde-sequestering properties of hydrazinophthalazine drugs may contribute to the protection they provide against 2-alkenal-mediated toxicity.
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http://dx.doi.org/10.1039/B408796H | DOI Listing |
Cureus
November 2024
Rheumatology, Cooper University Health Care, Camden, USA.
Drug-induced lupus erythematosus (DILE) is an autoimmune reaction that results in symptoms of polyarthralgia, fever, and cutaneous lesions and other manifestations. Several drugs have been documented to cause this disease, including procainamide, isoniazid, methyldopa, penicillamine, and hydralazine. Systemic lupus erythematosus (SLE) manifestations often occur after the patient has been taking the drug without complications for months to years.
View Article and Find Full Text PDFBiochem Biophys Res Commun
December 2024
Shandong Provincial Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China. Electronic address:
Fusarium pseudograminearum is the main pathogen that causes wheat crown rot (WCR), causing serious harm to wheat production. Wheat secretes Benzoxazolinones (Bxs) as fungicidins to prevent F. pseudograminearum infection.
View Article and Find Full Text PDFChem Biodivers
October 2024
Laboratório de Bioensaios Químicos-Farmacológicos e Ambiental-LabQFAm, Programa de Pós-Graduação em Ciências Naturais, Universidade Estadual do Ceará, 60.714903, Fortaleza, Ceará, Brazil.
The investigation of new drugs is slow and costly. Drug repositioning, like with Hydralazine (HDZ), an old antihypertensive, can accelerate the process. HDZ and its hydrazonic derivatives exhibit diverse biological activities, promising for new drugs.
View Article and Find Full Text PDFJ Cardiovasc Dev Dis
August 2024
Cardiology Department, School of Medicine, Hippokration General Hospital, National and Kapodistrian University of Athens, 157 72 Athens, Greece.
Hypertensive disorders of pregnancy affect approximately 5% to 10% of pregnant women. Eclampsia is a serious hypertensive disorder that is primarily characterized by the onset of grand mal seizure activity in the absence of other causative conditions. While eclampsia is diagnosed clinically, laboratory tests are recommended to assess for complications.
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