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Growth hormone-releasing hormone signaling and manifestations within the cardiovascular system.
Rev Endocr Metab Disord
January 2025
Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Biomedical Research Building, 1501 N.W. 10th Avenue, Room 908, Miami, FL, 33136, USA.
Growth hormone (GH)-releasing hormone (GHRH), a hypothalamic peptide initially characterized for its role in GH regulation, has gained increasing attention due to its GH-independent action on peripheral physiology, including that of the cardiovascular system. While its effects on the peripheral vasculature are still under investigation, GHRH and synthetic agonists have exhibited remarkable receptor-mediated cardioprotective properties in preclinical models. GHRH and its analogs enhance myocardial function by improving contractility, reducing oxidative stress, inflammation, and offsetting pathological remodeling.
View Article and Find Full Text PDFA simple and effective method to remove pigments from heterologous secretory proteins expressed in Pichia pastoris.
Adv Biotechnol (Singap)
February 2024
CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200030, China.
Pichia pastoris is a popular yeast host for high-level heterologous expression of proteins on an industrial scale owing to its reliable expression, robust growth, high fermentation density, and easy genetic manipulation and cultivation at a relatively low cost. Of particular interest is its high secretion efficiency for small proteins including insulin, human serum albumin, vaccines, enzymes, and llama-derived heavy-chain only antibodies (nanobodies) for pharmaceutical and research applications. However, a recurring challenge in using P.
View Article and Find Full Text PDFPolystyrene Nanoplastics Hitch-Hike the Gut-Brain Axis to Exacerbate Parkinson's Pathology.
ACS Nano
January 2025
Nanomedicine Center, The Great Bay Area National Institute for Nanotechnology Innovation, 136 Kaiyuan Avenue, Guangzhou 510700, China.
The neurological implications of micro- and nanoplastic exposure have recently come under scrutiny due to the environmental prevalence of these synthetic materials. Parkinson's disease (PD) is a major neurological disorder clinically characterized by intracellular Lewy-body inclusions and dopaminergic neuronal death. These pathological hallmarks of PD, according to Braak's hypothesis, are mediated by the afferent propagation of α synuclein (αS) via the enteric nervous system, or the so-called gut-brain axis.
View Article and Find Full Text PDFSynthetically Relevant Post-Transition State Bifurcation Leading to Diradical and Zwitterionic Intermediates: Controlling Nonstatistical Kinetic Selectivity through Solvent Effects.
J Am Chem Soc
January 2025
Department of Chemistry, University of California-Davis, Davis, California 95616, United States.
A post-transition state surface intersection (PTSSI) between radical and zwitterionic states that causes a bifurcation in the reaction pathway was discovered through density functional theory calculations on potential energy surfaces and ab initio molecular dynamics simulations of cycloadditions between a bicyclobutane and a triazolinedione (BCB-TAD). It was predicted that changes to the solvent polarity would enable control over the dynamic selectivity in this system; indeed, experimental evidence supported this prediction. This work not only provides new insights into an unusual type of post-transition state bifurcation, but also demonstrates how the nonstatistical dynamic effects that control selectivity for such reactions can be manipulated rationally to increase the yields of synthetically useful reactions.
View Article and Find Full Text PDFScreening of Aluminum-Based MOFs for Effective In Situ Immobilization of Biomolecules.
Inorg Chem
January 2025
Institut Lavoisier de Versailles, UMR CNRS 8180, UVSQ, Université Paris-Saclay, 78035 Versailles, France.
An effective approach for the immobilization and protection of biological entities is their encapsulation via the in situ synthesis of metal-organic frameworks (MOFs). To ensure the preservation of the bioentities, mild synthetic conditions, including aqueous media and ambient conditions (temperature and pressure), are preferred. In this study, we investigated the synthesis of various aluminum polycarboxylate-based MOFs, including the fumarate, terephthalate, amino-terephthalate, and muconate forms of MIL-53(Al), as well as the MIL-110 and MIL-160 MOF types.
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