Publications by authors named "L L Ferreira"

This study developed a stability-indicating HPLC-DAD method for quantifying haloperidol in oral solution using analytical quality-by-design principles. Haloperidol stability was tested under acidic, alkaline, oxidative, and photolytic stress conditions. The analytical quality-by-design approach began by defining the analytical target profile and identifying critical material attributes and critical method parameters via risk analysis.

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Background: Evaluate the impact of Spondias mombin L. juice (SM), alone and in combination with Lactobacillus acidophilus, in an experimental model of intestinal mucositis.

Methods: Swiss mice were orally administered with saline, SM, or SM combined with L.

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Introduction: The use of anabolic steroids is widely adopted for aesthetic purposes and sports performance. In supraphysiological doses, they can impair various physiological systems. However, we know little about their effects on the heart, especially when combined with strength training.

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Objective: This study aimed to investigate the association between maternal factors and first-trimester biophysical and biochemical markers with small for gestational age (SGA) neonates in twin pregnancies (TwPs).

Methods: Single-center retrospective cohort study of TwPs followed from January 2010 to December 2022 at a tertiary perinatal center, Portugal. Maternal and pregnancy characteristics, mean arterial pressure, pregnancy-associated plasma protein-A (PAPP-A), β-human chorionic gonadotropin (β-HCG), and uterine artery pulsatility index (UtA-PI) were analyzed.

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This work describes the synthesis and biological evaluation of hitherto unknown N-arylspermidine derivatives 3. Compounds 3 were efficiently prepared from cyclic amidines through a novel synthetic approach comprising alkylation with ω-halonitriles followed by reduction. The cyclic N-arylamidine directs the alkylation to the unsubstituted nitrogen and also provides the N-benzyl group present in the triamine after simultaneous reduction of the resulting quaternary salt 2 and the cyano group.

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