• In order to improve the

  2024-09-29

  

  In order to improve the methodology of the synthesis of steroidal derivatives, our goal was the investigation of aza-Michael addition of different N-nucleophiles to 16-dehydropregnenolone in the presence of [DBU][OAc] as catalyst and reaction medium. Michael addition of electron deficient steroidal

• br Introduction The principal pathways of adrenal and

  2024-09-29

  

  Introduction The principal pathways of adrenal and gonadal steroidogenesis have been known for over 50 years (reviewed by Miller and Auchus, 2011). Cholesterol is first converted to pregnenolone via three reactions, 20-hydroxylation, 22-hydroxylation and scission of the 20,22 carbon–carbon bond,

• Here the so called alkali assay

  2024-09-28

  

  Here the so-called alkali assay [18] is proposed as a method to be applied directly on the purified recombinant enzyme sharing the same structural and functional features of the wild-type enzyme [19], [20], [21] using its physiological substrate androstenedione. The assay that was already successful

• The approach of enzymatically converting an

  2024-09-28

  

  The approach of enzymatically converting an analyte and detecting it by the resulting small pH changes near the reduced graphene oxide (rGO) surface has successfully been pursued in case of urea (Piccinini et al., 2017). Furthermore, this work reported that electrostatic layer-by-layer (LbL) assembl

• br Conflict of interest br Introduction

  2024-09-28

  

  Conflict of interest Introduction Platelets are anucleate blood cells essential for hemostasis and wound healing; tight regulation of platelet numbers is crucial for human health. Platelets are synthesized and released from bone marrow megakaryocytes into the circulation where they remain for

• Apelin is a bioactive peptide

  2024-09-28

  

  Apelin is a bioactive peptide and endogenous ligand for the APJ receptor (APLNR), a member of the G protein coupled receptor family that shares a similar sequence as the angiotensin type-1 receptor (AT1) [5]. Early studies demonstrated that the apelin/APLNR receptor axis plays a significant role in

• Later on Wayner Burton Ingold Barclay

  2024-09-28

  

  Later on, Wayner, Burton, Ingold, Barclay, and Locke (1987) modified the method by using lipid to examine the ability of an antioxidant solution mm protect against lipid peroxidation generated by azo-compound. It was later improved using β-phycoerythrin (β-PE) as a fluorescent probe, and the ability

• Tetrazole Available data thus indicate that

  2024-09-28

  

  Available data thus indicate that there are at least two ways that HMGA proteins can induce localized changes in the chromatin structure of inducible gene promoters, both of which involve positioned nucleosomes that must be “remodeled” before gene transcription can occur. The first mechanism is exem

• We made a number of choices in the

  2024-09-28

  

  We made a number of choices in the original design of our experiments. First, we used only portions of the 5′ and 3′ regulatory elements from S. cerevisiae. The sequences of these regions were known [32] and our goal was to express the Pf-DHFR at low levels. In fact, our choice of only 600 bp of the

• A strain previously reported as demonstrating strong antifun

  2024-09-28

  

  A strain previously reported as demonstrating strong antifungal activity and suitability for food applications is Lactobacillus reuteri R29 (Axel et al., 2016, Oliveira et al., 2015). Oliveira et al. (2015) demonstrated that the cell-free supernatant (cfs) of medium fermented for 48 h with this stra

• br Acknowledgements br Introduction The angiogenic ocular co

  2024-09-28

  

  Acknowledgements Introduction The angiogenic ocular conditions represent the most common cause of blindness in developed countries [1]. It can affect all ages, for example, retinopathy of prematurity (ROP) in infants [2], [3], diabetic retinopathy (DR) [4] in working age adults and age-related

• In a recent issue of Minokoshi

  2024-09-28

  

  In a recent issue of , Minokoshi and colleagues have added more light to our understanding of the role of hypothalamic AMPK in the regulation of energy balance. Previous seminal work from the same group suggested that AMPK in the PVH might be involved in the modulation of feeding . Here, they show t

• Cells have developed strategies aiming to enhance both the e

  2024-09-28

  

  Cells have developed strategies aiming to enhance both the efficiency of proteins with chaperone activity as well as their overall antioxidant capacity to maintain proteostasis under oxidative stress conditions (Miyata et al., 2012). For instance, 2-Cys peroxiredoxin is an abundantly expressed, anti

• The difficulty of characterizing nAChRs in the central

  2024-09-27

  

  The difficulty of characterizing nAChRs in the central nervous system is also exemplified by early observations that nicotine caused no detectable effect when applied on a brain slice and it is only with the focal and high time resolution of more recent experiments that the effects of nicotinic neur

• Later the same group designed and

  2024-09-27

  

  Later, the same group designed and prepared several Δ16-steroidal C17 benzoazoles and pyrazines and evaluated their CYP17 and 5α-reductase inhibitory activities, binding to and transactivation of the AR, as well as their antiproliferative effects against two human PC cell lines (LNCaP and LAPC4) [18

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