Results 61 to 70 of about 9,595 (219)

Clinical Advantages of Positron Emission Tomography/Computed Tomography and Positron Emission Tomography/Magnetic Resonance in Radiotherapy: A Narrative Review

open access: yesiRADIOLOGY, EarlyView.
Review the clinical application of PET multimodal imaging and compare its clinical advantages. ABSTRACT Positron emission tomography (PET)–based multimodal imaging, including PET/computed tomography (PET/CT) and PET/magnetic resonance (PET/MR), plays an increasingly important role in precision radiotherapy by integrating metabolic and anatomical ...
Yingze Fu   +4 more
wiley   +1 more source

Harnessing Phytochemicals for Brain Cancer Therapy: Insights Into Medulloblastoma and Glioblastoma Treatment

open access: yesPhytochemical Analysis, EarlyView.
ABSTRACT Primary brain tumors are life‐threatening diseases. Glioblastoma is the most aggressive type with a poor prognosis. Medulloblastoma is the most common pediatric brain tumor. While surgical treatments often result in recurrences owing to the complex nature of the tumor microenvironment, conventional treatments lower the quality of life of ...
Ilkay Irem Ozbek   +3 more
wiley   +1 more source

Salsolinol: an Unintelligible and Double-Faced Molecule—Lessons Learned from In Vivo and In Vitro Experiments [PDF]

open access: yes, 2017
Salsolinol (1-methyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline) is a tetrahydroisoquinoline derivative whose presence in humans was first detected in the urine of Parkinsonian patients on l-DOPA (l-dihydroxyphenylalanine) medication.
Bugajski, Andrzej   +3 more
core   +2 more sources

Biosynthesis of Isoquinoline Alkaloids [PDF]

open access: yesPlanta Medica, 1979
The isoquinoline alkaloids and their biosynthetic relatives include many compounds which show important physiological properties in animals: dopamine, mescaline, morphine, papaverine, and narcotine are pertinent examples. The biosynthetic routes to the members of this family start from the essential aminoacids tyrosine or phenylalanine. Decarboxylation
openaire   +2 more sources

Phytochemicals in MASLD: A Focused Review of Gut Microbiome‐Linked Mechanisms

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT Metabolic dysfunction‐associated steatotic liver disease (MASLD) has emerged as a major global health burden, yet effective pharmacological options remain limited. Recent advances highlight the gut microbiome as a key modulator of liver metabolism, inflammation, and fibrosis, making it a promising therapeutic target.
Jeong In Seo, Su Min Kim, Hye Hyun Yoo
wiley   +1 more source

SYNTHESIS AND ANTIBACTERIAL EVALUATION OF NEW PYRROLO[3’,4’:3,4]PYRROLO[1,2-a]QUINOLINE AND PYRROLO[3',4':3,4]PYRROLO[2,1-a]ISOQUINOLINE DERIVATIVES

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2019
Two series of new fused pyrrolo[3’,4’:3,4]pyrrolo[1,2-a]quinoline and pyrrolo[3',4':3,4]pyrrolo[2,1-a]isoquinoline derivatives were synthesized and evaluated for the antimicrobial activity.
Cristina M. AL MATARNEH   +6 more
doaj   +1 more source

Stereochemical studies on protonated bridgehead amines. ^1H NMR determination of cis and trans B-C ring-fused structures for salts of hexahydropyrrolo [2,1-a] isoquinolines and related C ring homologs. Capture of unstable ring-fused structures in the solid state [PDF]

open access: yes, 1989
Acid-addition salts of tricyclic isoquinolines 2a/b, 3a/b, 4a-4c, 5, 6a/b, 7, 8a/b, 9a/b, and 17a/b were studied by high-field ^1H NMR in CDCl_3 solution.
Inners, Ruth R.   +6 more
core  

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros   +5 more
wiley   +1 more source

Synthesis of ([1,2,4]triazolo[4,3-a]pyridin-3-ylmethyl)phosphonates and their benzo derivatives via 5-exo-dig cyclization

open access: yesBeilstein Journal of Organic Chemistry, 2019
A series of novel 3-methylphosphonylated [1,2,4]triazolo[4,3-a]pyridines was accessed through a 5-exo-dig-type cyclization of chloroethynylphosphonates and commercially available N-unsubstituted 2-hydrazinylpyridines. In addition, 3-methylphosphonylated [
Aleksandr S. Krylov   +4 more
doaj   +1 more source

Synthesis and structure - Activity relationship study of potent cytotoxic analogues of the marine alkaloid Lamellarin D [PDF]

open access: yes, 2014
The marine alkaloid, Lamellarin D (Lam-D), has shown potent cytotoxicity in numerous cancer cell lines, and was recently identified as a potent topoisomerase I inhibitor.
Albericio Palomera, Fernando   +6 more
core   +2 more sources

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