Download or read book Analysis of Melanins written by Gerd Odh Olsson and published by . This book was released on 1998 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Melanins and Melanogenesis written by Giuseppe Prota and published by Academic Press. This book was released on 2012-12-02 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers all aspects of melanin pigmentation, providing a concise, comprehensive picture of new knowledge gained at the frontiers of research. It draws heavily on the author's 30-year activity in the field and his continuing work with specialists of widely diverse disciplines. The core of the volume deals with the structure, physicochemical properties, and biosynthesis of the major classes of melanin pigments, including neuromelanins. Further discussions include the biology of the various types of pigment-producing cells, the structure and mode of action of tyrosinase, and the chemistry of urinary melanogens and their biomedical applications as metabolic markers of melanocyte activity, especially for the follow-up of malignant melanoma. Finally, the volume considers progress in the photobiology and photochemistry of melanins, with special emphasis on the controversial role of these pigments in skin photoprotection. Melanins and Melanogenesis is ideally suited as a basic guide for newcomers, and a handy source of specific information for practitioners in academic, medical, and industrial settings.
Download or read book The Location and Analysis of Melanins in the Cell Walls of Some Soil Fungi written by and published by . This book was released on 1974 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Analysis of Skin Color from Melanin Content of Superficial Skin Cells written by H. Goldschmidt and published by . This book was released on 1972 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The color of human skin is determined by many factors. Blood supply, epidermal thickness, and pigments, both intrinsic and extrinsic, are responsible for the many variations we see. An important factor is the amount of the intrinsic pigment melanin, which absorbs and scatters ultraviolet radiation. In recent studies of the morphology of surface skin cells and their melanin content, we noticed a clear correlation between gross skin color and the average number of melanin granules per cell. This suggested that a quantitative analysis of melanin granules in skin cells from microscopic skin specimens, such as those present on clothing, could help to determine the skin color of the individual from which the cells came. This paper describes the methods of cell collection and staining followed and summarizes the results of the quantitative studies.
Download or read book 5th International Conference on Nanotechnologies and Biomedical Engineering written by Ion Tiginyanu and published by Springer Nature. This book was released on 2022-01-01 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the proceedings of the 5th International Conference on Nanotechnologies and Biomedical Engineering, held online on November 3–5, 2021, from Chisinau, Republic of Moldova. It covers fundamental and applied research at the interface between nanotechnologies and biomedical engineering. Chapters report on cutting-edge bio-micro/nanotechnologies, devices for biomedical applications, and advances in bio-imaging and biomedical signal processing, innovative nano-biomaterials as well as advances in e-health, medical robotics, and related topics. With a good balance of theory and practice, the book offers a timely snapshot of multidisciplinary research at the interface between physics, chemistry, biomedicine, materials science, and engineering.
Download or read book Skin Cancer and UV Radiation written by Peter Altmeyer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1476 pages. Available in PDF, EPUB and Kindle. Book excerpt: UV radiation is recognized as the major risk factor for skin can cer. For the last three decades the incidence and mortality of skin cancer have been increasing steadily in almost all parts of the world. Unfortunately, there have been very few advances in the management and treatment of skin cancer. In comparison to other malignant tumors, skin cancer offers the unique opportuni ty to identify this tumor at an early stage. Thus, there is strong interest in preventing death by early diagnosis and prompt treat ment. The proceedings of the International Congress on Skin Cancer and UV Radiation which was held in Bochum Germany in October 1996, reflect the newest scientific standards in the field of skin cancer. The conference in Bochum was a platform for leading scientists from all over the world to discuss the complexity and diversity of UV radiation in its interaction with the skin. Starting with basic science like physiology, immunology, and molecular biochemistry of the skin as influenced by UV radiati on, the book presents a profound survey into the field of skin can cer by focusing on the latest scientific results in prevention, early detection, treatment, and epidemiology. The congress in Bochum in 1996 was organized to provide a starting point for coordinated European strategies against skin cancer with internationally renown scientists.
Download or read book The Fungal Spore and Disease Initiation in Plants and Animals written by G.T. Cole and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This treatise is focused on early aspects of fungal pathogenesis in plant and animal hosts. Our aim in choosing the topics and contributors was to demonstrate common approaches to studies of fungal-plant and fungal-animal interactions, particularly at the biochemical and molecular Ievels. For example, the initial events of adh«sion of fungal spores to the exposed surface tissues of the host are essential for subsequent invasion of the plant or animal and establishment of pathogenesis. A point of consensus among investigators who have directed their attention to such events in plants, insects, and vertebrates isthat spore adhesion to the host cuticle or epithelium is more than a simple binding event. lt is a complex and potentially pivotal process in fungal-plant interactions which "may involve the secretion of ftuids that prepare the infection court for the development of morphological stages of the germling" and subsequent invasion of the host (Nicholson and Epstein, Chapter 1). The attachment of the fungal propagule to the arthropod cuticle is also "mediated by the chemical components present on the outer layer of the spore wall and the epicuticle . . . . Initial attachment may be reinforced further by either the active secretion of adhesive materials or the modification of spore wall materiallocated at the [fungal spore arthropod] cuticle interface (Boucias and Pendland, Chapter 5).
Download or read book Physical and Chemical Analyses of Melanins written by Lian Hong and published by . This book was released on 2006 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finally, we examined the photoionization properties of human RPE melanosomes and lipofuscin, another important pigment in the RPE. RPE melanosomes became more pro-oxidant with aging and lipofuscins were more pro-oxidant than melanosomes.
Download or read book Pigments Pigment Cells and Pigment Patterns written by Hisashi Hashimoto and published by Springer Nature. This book was released on 2021-07-05 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively summarizes the biological mechanisms of coloration and pattern formation of animals at molecular and cellular level, offering up-to-date knowledge derived from remarkable progress in the last 10 years. The brilliant coloration, conspicuous patterns and spectacular color changes displayed by some vertebrates and invertebrates are generally their strategies of the utmost importance for survival. Consists of mainly three parts, starts with introductory chapter, such as Pigments and Pigment Organelles, Developmental Genetics of Pigment Cell Formation, Adult Pigment Patterns, and Color Changes, this book introduces new pigment compounds in addition to classically known pigments and organelles, explains how the generation of multiple types of pigment cell is genetically controlled, describes the mechanisms underlying the zebrafish stripe formation as well as other animals and also summarizes the mechanism of physiological and morphological color changes of teleost, amphibian and cephalopod. Written by experts in the field, this book will be essential reading for graduate students and researchers in biological fields who are interested in pigmentation mechanisms of animals.
Download or read book The Melanin Millennium written by Ronald E. Hall and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the aftermath of the 60s “Black is Beautiful” movement and publication of The Color Complex almost thirty years later the issue of skin color has mushroomed onto the world stage of social science. Such visibility has inspired publication of the Melanin Millennium for insuring that the discourse on skin color meet the highest standards of accuracy and objective investigation. This volume addresses the issue of skin color in a worldwide context. A virtual visit to countries that have witnessed a huge rise in the use of skin whitening products and facial feature surgeries aiming for a more Caucasian-like appearance will be taken into account. The book also addresses the question of whether using the laws has helped to redress injustices of skin color discrimination, or only further promoted recognition of its divisiveness among people of color and Whites. The Melanin Millennium has to do with now and the future. In the 20th century science including eugenics was given to and dominated by discussions of race category. Heretofore there remain social scientists and other relative to the issue of skin color loyal to race discourse. However in their interpretation and analysis of social phenomena the world has moved on. Thus while race dominated the 20th century the 21st century will emerge as a global community dominated by skin color and making it the melanin millennium.
Download or read book Melanin written by and published by . This book was released on 19?? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Melanins Functions Biotechnological Production and Applications written by Guillermo Gosset and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an up-to-date overview of the biological functions of melanins, their biotechnological production, and their industrial applications. The melanins form a group of polymeric pigments found in most organisms. These natural products are generated by the oxidation of phenolic and indolic molecules yielding melanins, which include eumelanin, pheomelanin, pyomelanin, and the allomelanins. These pigments have diverse biological functions, including photoprotection, thermoregulation, antioxidation, virulence, and metal ion sequestration. Melanins have physicochemical properties that have proven useful in the optical, electronic, material, agriculture, cosmetic, pharmaceutical, and medical industries. The chapters in this book provide an in-depth analysis of the current issues and challenges in this field. Topics covered include the properties, biogenesis, and evolution of melanosomes. The book also addresses the synthesis and industrial production of melanins by microorganisms. The metabolic pathways for the synthesis of several types of polymeric pigments in microorganisms and their role in pathogenesis are reviewed. The large-scale production and purification of melanins to provide this product for industrial applications is a formidable challenge. Two chapters present and discuss the state-of-the-art used for the generation of microbial melanin-production strains and the processes for the biotechnological synthesis and purification of these pigments. Melanins are polymers that can interact with metals, a chapter reviews this capacity in the context of technological applications, including electrochemical energy storage and metal recovery. These polymers are materials having favorable characteristics for photonic applications, including UV blocking and broadband absorption. The current advances in the application of these pigments in optically active materials are presented and discussed.
Download or read book In the Light of Evolution written by National Academy of Sciences and published by . This book was released on 2007 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of traditional disciplines. Each year, four or five such colloquia are scheduled, typically two days in length and international in scope. Colloquia are organized by a member of the Academy, often with the assistance of an organizing committee, and feature presentations by leading scientists in the field and discussions with a hundred or more researchers with an interest in the topic. Colloquia presentations are recorded and posted on the National Academy of Sciences Sackler colloquia website and published on CD-ROM. These Colloquia are made possible by a generous gift from Mrs. Jill Sackler, in memory of her husband, Arthur M. Sackler.
Download or read book Dark Light Consciousness written by Edward Bruce Bynum and published by Simon and Schuster. This book was released on 2012-06-19 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: How to awaken the Ureaus--the serpent power of spiritual transcendence within each of us--and connect to the superconscious of the universe • Reveals the biochemistry of how the body’s melanin provides the template for the subtle energy body or light body • Shows how embracing the dark light consciousness of the awakened Ureaus opens a portal to the sacred darkness of the superconscious • Provides illustrated instructions for meditation practices, breathing exercises, and yoga postures to safely awaken Ureaus/Kundalini energy Within each of us lies the potential to activate a personal connection to the superconscious. Called “Ureaus” in ancient Egyptian texts and “Kundalini” in ancient Hindu yoga traditions, our innate serpent power of spiritual transcendence inhabits the base of the spine in its dormant state. When awakened, it unfurls along the spinal column to the brain, connecting individual consciousness to the consciousness of the universe enfolded within the dark matter of space. At the root of creativity and spiritual genius across innumerable cultures and civilizations, this intelligent force reveals portals that enfold time, space, and the luminous matrix of reality itself. Combining physics, neuroscience, and biochemistry with ancient traditions from Africa and India, Edward Bruce Bynum, Ph.D., explores the ancient Egyptian science of the Ureaus and reveals how it is intimately connected to dark matter and to melanin, a light-sensitive, energy-conducting substance found in the brain, nervous system, and organs of all higher life-forms. He explains how the dark light of melanin serves as the biochemical infrastructure for the subtle energy body, just as dark matter, together with gravity, holds the galaxies and constellations together. With illustrated instructions, he shows how to safely awaken and stabilize the spiritual energy of the Ureaus through meditation practices, breathing exercises, and yoga postures as well as how to prepare the subtle body for transdimensional soul travel. By embracing the dark light of the shining serpent within, we overcome our collective fear of the vast living darkness without. By embracing the dark, we transcend reality to the dimension of light.
Download or read book Catecholamine Research written by Toshiharu Nagatsu and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on invited presentations at the Ninth International Catecholamine Symposiwn. Over several decades, each International Catecholamine Symposiwn (ICS) has provided a uniquely important forwn for updating basic as well as clinical research on the catecholamines, dopamine, norepinephrine, and epinephrine. The first ICS took nd n1 place in Bethesda, Maryland, in the USA in 1958; the 2 in Milan, Italy in 1965; the 3 th in Strasbourg, France in 1973; the 4th in Asilomar, California, USA in 1978; the 5 in th th Goteborg, Sweden in 1983; the 6 in Jerusalem, Israel,in 1987; the 7 in Amsterdam, th Netherlands in 1992; and the 8 in Asilomar, California, USA in 1996. th The 9 International Catecholamine Symposiwn (9ICS) was held in Kyoto, Japan, th March 31-April 5, 2001. This ICS was held concurrently with the 5 International th Conference on Progress in Alzheimer's and Parkinson's Disease (5 ADPD). These international meetings were coordinated to be a joint international congress. Catecholamines and related neurotransmitters and neuromediators play important roles in the pathogenesis of symptoms and neurodegenerative processes of Alzheimer's disease and Parkinson's disease. Therefore, the Joint Congress provided an opportunity for investigators and clinicians working in these fields to exchange their· most recent investigational results and clinical experiences. This Joint International Congress turned out to be an enormous success, attended by 1258 participants from 38 countries, in an enthusiastic and pleasant atmosphere.
Download or read book Methods in Actinobacteriology written by Dhanasekaran Dharumadurai and published by Humana. This book was released on 2021-12-19 with total page 747 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume details techniques on the study of Isolation, characterization, and exploration of actinobacteria in industrial, food, agricultural, and environmental microbiology. Chapters cover a wide range of basic and advanced techniques associated with research on isolation, characterization and identification of actinobacteria in soil, sediment, estuarine, water, Saltpan, Mangroves, plants, lichens, sea weeds, sea grass, animals-crab, snail, shrimp. Authoritative and cutting-edge, Methods in Actinobacteriology aims to be a useful practical guide to researches to help further their study in this field.
