Progress Towards the Total Synthesis of a Stable (-)-xestospongin C Derivative

Progress Towards the Total Synthesis of a Stable (-)-xestospongin C Derivative PDF Author: Kacper Skakuj
Publisher:
ISBN:
Category : Alkaloids
Languages : en
Pages : 71

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Book Description
The marine sponge alkaloids xestospongins and aruguspongines have well-established biological activities, including the inhibition of inositol trisphosphate receptors and the prevention of inositol trisphosphate mediated intracellular calcium release. These alkaloids are highly valuable in the study of the inositol trisphosphate and calcium signaling pathways in cells because few viable alternative inhibitors exist. However, xestospongin C -- the most potent of these alkaloids -- is not stable during storage. The goal of this study was to implement a thirteen-step synthesis of a xestospongin C derivative, designed to enhance storage stability and provide a reliable inhibitor for the study of these crucial cellular signaling functions.

Progress Towards the Total Synthesis of a Stable (-)-xestospongin C Derivative

Progress Towards the Total Synthesis of a Stable (-)-xestospongin C Derivative PDF Author: Kacper Skakuj
Publisher:
ISBN:
Category : Alkaloids
Languages : en
Pages : 71

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Book Description
The marine sponge alkaloids xestospongins and aruguspongines have well-established biological activities, including the inhibition of inositol trisphosphate receptors and the prevention of inositol trisphosphate mediated intracellular calcium release. These alkaloids are highly valuable in the study of the inositol trisphosphate and calcium signaling pathways in cells because few viable alternative inhibitors exist. However, xestospongin C -- the most potent of these alkaloids -- is not stable during storage. The goal of this study was to implement a thirteen-step synthesis of a xestospongin C derivative, designed to enhance storage stability and provide a reliable inhibitor for the study of these crucial cellular signaling functions.

Spillover and Mobility of Species on Solid Surfaces

Spillover and Mobility of Species on Solid Surfaces PDF Author: A. Guerrero-Ruiz
Publisher: Elsevier
ISBN: 0080539742
Category : Technology & Engineering
Languages : en
Pages : 501

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Book Description
"Spillover and Mobility of Species and Solid Surfaces" collects the papers which were presented at the Fifth International Conference Spillover, either as oral or poster contributions, as well as the summaries of the invited lectures. This congress and its publication in the Studies on Surface Science and Catalysis series follow the tradition of previous conferences on spillover, initiated in Lyon, 1983, and continued in Leipzig, 1989, Kyoto 1993 and Dalian, 1997. For the fifth conference, held in S.L. el Escorial (Madrid), the organising committee has attempted to compile representative contributions which illustrate the advances in understanding the spillover phenomenon since 1997. Spillover is a process taking place during the interface of gas reactant molecules (mainly hydrogen and oxygen) on solid surfaces. However, different contributions to the more general area of the chemistry at surfaces, related with the mobility and migration of species, diffusion through membranes, fuel cell catalysts, etc., have also been included. In fact the title of the present volume summarizes this attempt to extend the conference topics towards dynamics at surfaces.Among the 70 contributions received, the 56 accepted papers were selected on the basis of the reports of at least two international reviewers, according to standards comparable to those applied for other specialised journals. These papers are from 21 different countries.

Bioactive Marine Natural Products

Bioactive Marine Natural Products PDF Author: Dewan S. Bhakuni
Publisher: Springer Science & Business Media
ISBN: 1402034849
Category : Science
Languages : en
Pages : 397

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Book Description
Bioactive Marine Natural Products is the first book available that covers all aspects of bioactive marine natural products. It fills the void in the literature for bioactive marine natural products. The book covers various aspects of marine natural products and it is hoped that all the major classes of bioactive compounds are included. Different classes of marine organisms and the separation and isolation techniques are discussed. The chemistry and biology of marine toxins, peptides, alkaloids, nucleosides and prostanoids are discussed in detail. Biological, toxicological and clinical evaluations are also dealt with to ensure that the book may be adopted at any stage by any practicing organic chemist or biologist, working in academia or in R and D divisions of pharmaceutical companies. Each chapter in the book includes an abstract to highlight the major points discussed in the text and concluding remarks are given. References to books, monographs, review articles and original papers are provided at the end of each chapter.

Marine Compounds and Cancer

Marine Compounds and Cancer PDF Author: Friedemann Honecker
Publisher: MDPI
ISBN: 3038427659
Category : Science
Languages : en
Pages : 119

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Book Description
This book is a printed edition of the Special Issue "Marine Compounds and Cancer" that was published in Marine Drugs

Endohedral Metallofullerenes

Endohedral Metallofullerenes PDF Author: Xing Lu
Publisher: CRC Press
ISBN: 1466593954
Category : Science
Languages : en
Pages : 276

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Book Description
Knowledge on endohedral metallofullerenes (EMFs) has increased dramatically during the last decade. Numerous research findings have been reported, making it an opportune time to provide a systematic update on EMFs. Endohedral Metallofullerenes: Basics and Applications presents the most comprehensive review on all aspects of EMFs including their gen

Calcium Signaling

Calcium Signaling PDF Author: Md. Shahidul Islam
Publisher: Springer Nature
ISBN: 3030124576
Category : Medical
Languages : en
Pages : 1110

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Book Description
This volume contains a unique selection of chapters covering a wealth of contemporary topics in this ubiquitous and diverse system of cell signaling. It offers much more than the accessibility and authority of a primary text book, exploring topics ranging from the fundamental aspects of calcium signaling to its varied clinical implications. It presents comprehensive discussion of cutting-edge research alongside detailed analysis of critical issues, at the same time as setting out testable hypotheses that point the way to future scientific endeavors. The contributions feature material on theoretical and methodological topics as well as related subjects including mathematical modeling and simulations. They examine calcium signaling in a host of contexts, from mammalian cells to bacteria, fruit fly and zebrafish. With much of interest to newcomers to the field as well as seasoned experts, this new publication is both wide-ranging and authoritative. The chapter “Calcium Signaling: From Basic to Bedside” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Endoplasmic Reticulum Stress in Health and Disease

Endoplasmic Reticulum Stress in Health and Disease PDF Author: Patrizia Agostinis
Publisher: Springer Science & Business Media
ISBN: 9400743513
Category : Medical
Languages : en
Pages : 448

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Book Description
The Endoplasmic Reticulum (ER) is an organelle with extraordinary signaling and homeostatic functions. It is the organelle responsible for protein folding, maturation, quality control and trafficking of proteins destined for the plasma membrane or for secretion into the extracellular environment. Failure, overloading or malfunctioning of any of the signaling or quality control mechanisms occurring in the ER may provoke a stress condition known as ‘ER stress’. Accumulating evidence indicates that ER stress may dramatically perturb interactions between the cell and its environment, and contribute to the development of human diseases, ranging from metabolic diseases and cancer to neurodegenerative diseases, or impact therapeutic outcome. This book primarily focuses on the pathophysiology of ER stress. It introduces the molecular bases of ER stress, the emerging relevance of the ER-mitochondria cross-talk, the signaling pathways engaged and cellular responses to ER stress, including the adaptive Unfolded Protein Response (UPR), autophagy as well as cell death. Next the book addresses the role of ER stress in physiology and in the etiology of relevant pathological conditions, like carcinogenesis and inflammation, neurodegeneration and metabolic disease. The last chapter describes how ER stress pathways can be targeted for therapeutic benefit. Altogether, this book will provide the reader with an exhaustive view of ER stress biology and the latest insights in the role of ER stress in relevant human diseases.

Distillation: Equipment and Processes

Distillation: Equipment and Processes PDF Author: Andrzej Gorak
Publisher: Academic Press
ISBN: 0123868793
Category : Science
Languages : en
Pages : 373

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Book Description
Distillation: Equipment and Processes—winner of the 2015 PROSE Award in Chemistry & Physics from the Association of American Publishers—is a single source of authoritative information on all aspects of the theory and practice of modern distillation, suitable for advanced students and professionals working in a laboratory, industrial plants, or a managerial capacity. It addresses the most important and current research on industrial distillation, including all steps in process design (feasibility study, modeling, and experimental validation), together with operation and control aspects. This volume features an extra focus on distillation equipment and processes. - Winner of the 2015 PROSE Award in Chemistry & Physics from the Association of American Publishers - Practical information on the newest development written by recognized experts - Coverage of a huge range of laboratory and industrial distillation approaches - Extensive references for each chapter facilitates further study

Astrocyte

Astrocyte PDF Author: Maria Teresa Gentile
Publisher: BoD – Books on Demand
ISBN: 9535138855
Category : Medical
Languages : en
Pages : 244

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Book Description
A team of authors from prestigious academic schools contributed to draw up a project that would give a detailed account of astrocyte's morphology and physiology, examining thoroughly all the astrocyte's types; giving an accurate description of their morphology, location, function in the brain; and illustrating their physiology and pathology in terms of dealing with neurons through "gliotransmitters," ionic channels, and membrane receptors expression. This book gives an overview of the crucial role of astrocytes in the physiology of the CNS and in the pathogenesis of several CNS disorders suggesting that the shift from a neurocentric view to one that incorporates astrocytes in disease models for drug discovery is a critical step in renewing drug development strategies to treat neurodegenerative diseases.

Sigma Receptors: Their Role in Disease and as Therapeutic Targets

Sigma Receptors: Their Role in Disease and as Therapeutic Targets PDF Author: Sylvia B. Smith
Publisher: Springer
ISBN: 3319501747
Category : Medical
Languages : en
Pages : 311

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Book Description
Originally confused with opioid receptors and then orphan receptors with no biological function, Sigma Receptors are now recognized as relevant to many degenerative diseases with remarkable potential as therapeutic targets. In this text, new information about the structure of sigma 1 receptor, its binding sites are provided as well as its expression in many cell types. It’s putative role in degenerative neuronal diseases including amyotrophic lateral sclerosis, Alzheimer’s disease, Parkinson’s disease, Huntington’s disease, pain, drug addiction and locomotor activity. Their roles in possible treatments for blinding retinal diseases emphasize the tremendous far-reaching potential for ligands for these receptors. Exciting breakthroughs in this dynamic field in the last decade are reported herein, which will guide future investigators in determining the full potential of this unique, yet abundantly expressed protein.