Results 81 to 90 of about 17,058 (185)

Actinomycin Derivatives: Structural Diversification and Biological Activities

open access: yesChemMedChem, Volume 21, Issue 15, 14 August 2026.
Actinomycins are chromopeptide antibiotics exhibiting remarkable structural diversity and broad bioactivity. This review traces their development from naturally occurring D‐, X‐, A‐, G‐, Y‐, and Z‐type analogs to precursor‐directed, synthetic, and semisynthetic derivatives.
Özge Can, Erdal Bedir
wiley   +1 more source

Structure Elucidation of cis- and trans-1,2,4-Oxadiazol Derivatives

open access: yesChinese Journal of Magnetic Resonance
The geometric configuration of cis-trans isomers critically influences their biological activities, making the separation and configurational identification essential for efficacy evaluation.
GAO Yuan, LIU Xinyue, WANG Sihong
doaj   +1 more source

Dicentrine, an Aporphine Alkaloid From Ocotea langsdorffii, Induces Mitochondrial Dysfunction and Oxidative Stress in Leishmania (L.) infantum

open access: yesChemistry &Biodiversity, Volume 23, Issue 8, August 2026.
Dicentrine, an aporphine alkaloid, exhibits potent in vitro antileishmanial activity against Leishmania species with high selectivity and low macrophage cytotoxicity. Mechanistic studies reveal that the compound triggers parasite death possibly by inducing mitochondrial membrane disruption and oxidative stress.
Camila S. de Freitas   +9 more
wiley   +1 more source

Selenium‐Containing 1,4‐Naphthoquinone Derivatives Trigger Reactive Oxygen Species and Apoptosis in Triple‐Negative Breast Cancer Cells

open access: yesDrug Development Research, Volume 87, Issue 5, August 2026.
ABSTRACT Cancer ranks as a leading cause of death worldwide, demanding new affordable therapies. Nature offers a diverse array of bioactive scaffolds, including 1,4‐naphthoquinone, which serves as a precursor for numerous natural and synthetic compounds with potent antitumor properties.
Eduardo Angulo‐Elizari   +7 more
wiley   +1 more source

Volatile Compounds as Upcoming Antigiardial Agents: In Vitro Action of Carvacrol, Thymol and p-Cymene on Giardia lamblia Trophozoites

open access: yesPharmaceutics
Background/Objectives: Carvacrol and thymol are monoterpenes present in phenolic-rich essential oils extracted from aromatic plants that exhibit antimicrobial activity.
Marisa Machado   +4 more
doaj   +1 more source

Physapubescin B From Physalis: A Food‐Derived Withanolide for Cancer Chemoprevention and Nutraceutical Development

open access: yeseFood, Volume 7, Issue 4, August 2026.
Physapubescin B may interfere with multiple cancer‐associated signaling pathways by inhibiting Ras/Raf/mitogen‐activated protein kinase kinase/extracellular signal‐regulated kinase (Ras/Raf/MEK/ERK) signaling and vascular endothelial growth factor (VEGF)‐dependent angiogenesis.
Wojciech Koch   +11 more
wiley   +1 more source

Synthesis, Characterization and Nanoformulation of Novel Sulfonamide-1,2,3-triazole Molecular Conjugates as Potent Antiparasitic Agents. [PDF]

open access: yesInt J Mol Sci, 2022
Aljohani FS   +8 more
europepmc   +1 more source

A Case‐Control Study of Risk Factors for Scabies Among Patients Attending Dermatology Clinics in Afghanistan

open access: yesHealth Science Reports, Volume 9, Issue 8, August 2026.
ABSTRACT Background and Aims Scabies is a highly contagious parasitic skin disease and neglected tropical disease disproportionately affecting populations in poverty and fragile health systems. In Afghanistan, evidence on its environmental and socioeconomic determinants remains scarce.
Matiullah Alimzai   +10 more
wiley   +1 more source

Leveraging Administrative Health Data to Capture Rare Adverse Drug Reactions: Identifying Pediatric Patients With Trimethoprim‐Sulfamethoxazole Acute Respiratory Distress Syndrome

open access: yesPharmacology Research &Perspectives, Volume 14, Issue 4, August 2026.
ABSTRACT Rare adverse drug reactions (ADRs) are underrecognized and underreported in the electronic medical record (EMR). These events often require clinical review, making systematic identification challenging. The study aim was to develop an approach to prioritize identification and validation of a rare ADR to trimethoprim‐sulfamethoxazole causing ...
Keith Feldman   +6 more
wiley   +1 more source

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