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Страница 1 от 51 резултата
The enhancement of tumor cell susceptibility to macrophage binding and cytolysis by p-aminobenzoic acid-N-xyloside sodium salt (K-247).
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The enhancement of tumor cell susceptibility to macrophage binding and cytolysis by the pretreatment of tumor cells by p-aminobenzoic acid-N-xyloside sodium salt (K-247) was investigated in the C3H/He mouse-syngeneic tumor system. Binding and cytolytic activities of Corynebacterium parvum-activated
4-Aminobenzoic Acid Derivatives: Converting Folate Precursor to Antimicrobial and Cytotoxic Agents.
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4-aminobenzoic acid (PABA), an essential nutrient for many human pathogens, but dispensable for humans, and its derivatives have exhibited various biological activities. In this study, we combined two pharmacophores using a molecular hybridization approach: this vitamin-like molecule and various
Effects of garlic components diallyl sulfide and diallyl disulfide on arylamine N-acetyltransferase activity in human bladder tumor cells.
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Diallyl sulfide (DAS) and diallyl disulfide (DADS) were used to determine viability and inhibition of arylamine N-acetyltransferase (NAT) activity in human bladder tumor cells. The NAT activity was measured by high performance liquid chromatography assaying for the amounts of
The sensitization of near-ultraviolet radiation killing of mammalian cells by the sunscreen agent para-aminobenzoic acid.
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The wavelengths of sunlight considered to be responsible for erythema and skin cancer formation are in the range 290-340 nm. Formulated sunscreens usually contain an agent that absorbs in this wavelength region, and one of the most widely used is para-aminobenzoic acid (PABA). Previous work has
Biomolecular study and conjugation of two para-aminobenzoic acid derivatives with serum proteins: drug binding efficacy and protein structural analysis.
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Two aminobenzoic acid derivatives DAB-0 and DAB-1 showed distinct biological properties on murine bladder cancer (BCa) cell line MB49-I. In contrast to DAB-1, DAB-0 does not possess any anti-inflammatory activity and is less toxic. Furthermore, DAB-0 does not interfere with INFγ-induced STAT1
Carboxymethylcellulose-tetrahydrocurcumin conjugates for colon-specific delivery of a novel anti-cancer agent, 4-amino tetrahydrocurcumin.
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Several curcumin derivatives are now becoming increasingly of interest because of their bioactive attributes, especially their action as antioxidants and anti-carcinogenic activities. Tetrahydrocurcumin (THC), an active metabolite of curcumin, was selected to be a proper starting material for the
Inactivation of human arylamine N-acetyltransferase 1 by the hydroxylamine of p-aminobenzoic acid.
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Human N-acetyltransferase 1 (NAT1) is a widely distributed enzyme that catalyses the acetylation of arylamine and hydrazine drugs as well as several known carcinogens, and so its levels in the body may have toxicological importance with regard to drug toxicity and cancer risk. Recently, we showed
[Antitumor effects of p-aminobenzoic acid-N-xyloside Na--effects of single administration and combination with radiotherapy].
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Therapeutic effect of p-aminobenzoic acid-N-xyloside Na (K-247) were studied. Eleven patients with a variety of solid tumors were treated with K-247 alone. K-247 was given orally 800mg daily for 4 weeks. As for side effect of the drug, only mild gastritis was observed in a few patients. Partial
Effects of carmustine and lomustine on arylamine N-acetyltransferase activity and 2-aminofluorene-DNA adducts in rat glial tumor cells.
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Carmustine and lomustine are nitrosourea antitumor chemotherapeutic agents which were used to determine whether or not they could affect arylamine N-acetyltransferase (NAT) activity and DNA-2-aminofluorene adducts in rat glial tumor cell line (C6 glioma). The NAT activity was measured by high
The vitamin-like dietary supplement para-aminobenzoic acid enhances the antitumor activity of ionizing radiation.
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OBJECTIVE
To determine whether para-aminobenzoic acid (PABA) alters the sensitivity of tumor cells to ionizing radiation in vitro and in vivo.
METHODS
Cellular proliferation was assessed by WST-1 assays. The effects of PABA and radiation on tumor growth were examined with chick embryo and murine
Synthesis, characterization and evaluation of 1,3,5-triazine aminobenzoic acid derivatives for their antimicrobial activity.
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BACKGROUND
Replacement of chloride ions in cyanuric chloride give several variants of 1,3,5-triazine derivatives which were investigated as biologically active small molecules. These compounds exhibit antimalarial, antimicrobial, anti-cancer and anti-viral activities, among other beneficial
Conjugated system of homo-aza-steroidal esters in cancer chemotherapy.
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The homo-aza-steroidal esters of conjugated carboxylic derivatives of nitrogen mustards are reviewed. Particularly we discuss the antitumor activity of cinnamic acid and benzoic acid mustard isomers, esters of homo-aza-steroids in which the mustard acid is linked to the C-3 or C17 position, while
Molecular therapy with derivatives of amino benzoic acid inhibits tumor growth and metastasis in murine models of bladder cancer through inhibition of TNFα/NFΚB and iNOS/NO pathways.
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Muscle-invasive bladder cancer (MIBC) is an aggressive form of urothelial bladder carcinoma (UBC) with poorer outcomes compared to the non-muscle invasive form (NMIBC). Higher recurrent rates and rapid progression after relapse in UBC is known to be linked with chronic inflammation. Here, the
Para-aminobenzoic acid suppression of cis-diamminedichloroplatinum(II) nephrotoxicity.
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Concurrent administration of para-aminobenzoic acid (PABA) reduced the toxicity of cis-diamminedichloroplatinum(II) (DDP) in a dose-related manner in rats. When administered i.p. simultaneously with 7.5 mg/kg DDP, PABA (100 mg/kg) significantly reduced plasma urea nitrogen (PUN) and plasma
The effect of various sunscreen agents on skin damage and the induction of tumor susceptibility in mice subjected to ultraviolet irradiation.
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Sunscreen preparations containing various chemical UV absorbers, para-aminobenzoic acid (PABA), 2 PABA derivatives, benzophenone or a combination of these were topically applied to the backs of C3H/HeN mice prior to their being irradiated with ultraviolet light in the UVB range. In all cases this
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