Download or read book Melanins and Melanosomes written by Jan Borovansky and published by John Wiley & Sons. This book was released on 2011-10-05 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The surface pigmentation of vertebrates is controlled by specialized cells able to synthesize a variety of pigments collectively known as melanins. Recent research has shown that melanins are produced not only in the skin but also in many other sites such as the eye, inner ear, muscles, etc., - where they are engaged in some unanticipated roles. The details of the synthetic pathway, the complexities of its regulation and biological significance that have been unravelled in recent research comprise a fascinating story and are of key importance in understanding the nature of diseases, including malignant melanoma one of the most rapidly spreading cancers.
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 Melanins and Melanosomes written by Jan Borovansky and published by John Wiley & Sons. This book was released on 2011-08-15 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The surface pigmentation of vertebrates is controlled by specialized cells able to synthesize a variety of pigments collectively known as melanins. Recent research has shown that melanins are produced not only in the skin but also in many other sites such as the eye, inner ear, muscles, etc., - where they are engaged in some unanticipated roles. The details of the synthetic pathway, the complexities of its regulation and biological significance that have been unravelled in recent research comprise a fascinating story and are of key importance in understanding the nature of diseases, including malignant melanoma one of the most rapidly spreading cancers.
Download or read book Melanins Functions Biotechnological Production and Applications written by Guillermo Gosset and published by Springer Nature. This book was released on 2023-05-30 with total page 150 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 The Biochemistry of Natural Pigments written by G. Britton and published by Cambridge University Press. This book was released on 1983-03-10 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the structures and properties of the main groups of natural pigments.
Download or read book Melanin Base Camp written by Danielle Williams and published by Black Dog & Leventhal. This book was released on 2023-03-21 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beautiful, empowering, and exhilarating, Melanin Base Camp is a celebration of underrepresented BIPOC adventurers that will challenge you to rethink your perceptions of what an outdoorsy individual looks like and inspire you to being your own adventure. Danielle Williams, skydiver and founder of the online community Melanin Base Camp, profiles dozens of adventurers pushing the boundaries of inclusion and equity in the outdoors. These compelling narratives include a mother whose love of hiking led her to found a nonprofit to expose BIPOC children to the wonders of the outdoors and a mountain biker who, despite at first dealing with unwelcome glances and hostility on trails, went on to become a blogger who writes about justice and diversity in natural spaces. Also included is a guide to outdoor allyship that explores sometimes challenging topics to help all of us create a more inclusive community, whether you bike, climb, hike, or paddle. Join us as we work together to increase representation and opportunities for people of color in outdoor adventure sports.
Download or read book Fungal Physiology written by David H. Griffin and published by John Wiley & Sons. This book was released on 1996-06-22 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly revised, this edition summarizes the field of fungal physiology from a dynamic, experimental perspective. Integrates molecular genetics with biochemistry and development of fungi. Reorganized into 14 chapters it describes the latest contemporary experimental approaches to fungal research as well as future developments.
Download or read book Bio pigmentation and Biotechnological Implementations written by Om V. Singh and published by John Wiley & Sons. This book was released on 2017-05-18 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent technological advances have provided unique opportunities for the exploration of alternatives to the industrial use of chemically produced synthetic colors. The most promising developments in this area have been in bio-pigmentation derived from microorganisms. This groundbreaking book reviews the current state of the science of bio-pigmentation, providing important insights into the molecular mechanisms of microbial biosynthesis of industrial pigments. Featuring contributions by leading researchers from both industry and academe, it explores the latest advances in the use of bio-pigments as safe, sustainable alternatives to chemically synthesized pigments, and provides extensive coverage the most promising sources of bio-pigments within the food, feed, and pharmaceutical industries. • Proposes microbial uniqueness of coloration in variety of food, feed and pharmaceuticals • Covers the basic science behind bio-pigmentation as well as the latest advances in the field • Describes detection strategies for screening and identifying color producing microorganisms under varying environmental conditions • Provides an exhaustive review of the literature on color producing extremophiles and offers fascinating insights into color production as a stress response in extremophiles • Explores microbial molecular mechanisms of color production, with special coverage of color production as secondary metabolites under environmental stress Bio-pigmentation and Biotechnological Implementations is required reading for professionals and post-doctoral students of microbiology, applied microbiology, food microbiology, food science, and food biochemistry. It is a valuable working resource for scientists working in color-dependent food, feed, and pharmaceuticals.
Download or read book Melanin written by Miroslav Blumenberg and published by BoD – Books on Demand. This book was released on 2017-03-01 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The word melanin refers to dark natural pigments produced by the oxidative degradation of tyrosine, catalyzed by tyrosinase, and polymerized into insoluble granular substance. The main function of melanin is to protect from harmful agents, primarily UV radiation, but also from oxidation, heavy metals, etc. In this volume, chapters deal with production of melanin in human oral mucosa (Liviu et al.), the regulation of melanin action (Cecile et al.), production and potential technological application of fungal melanins (Pombiero-Sponchiado et al.) and an innovative method for measuring melanin in various samples (Zdybel et al.). In conclusion, this volume presents various biological and industrial aspects of melanin production, uses and analysis.
Download or read book The Pigmentary System written by James J. Nordlund and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive and integrated book on pigmentation The Pigmentary System, Second Edition, gathers into one convenient, all-inclusive volume a wealth of information about the science of pigmentation and all the common and rare clinical disorders that affect skin color. The two parts, physiology (science) and pathophysiology (clinical disorders), are complementary and annotated so that those reading one part can easily refer to relevant sections in the other. For the clinician interested in common or rare pigment disorders or the principles of teaching about such disorders, this book provides an immediate and complete resource on the biologic bases for these disorders. For the scientist studying the biology of melanocyte function, the book provides a list of disorders that are related to basic biological functions of melanocytes. New features of this Second Edition include: Completely new section on the basic science of pigmentation – explaining the integration of melanocyte functions with other epidermal cells and with various organ systems like the immune system New chapters on pigmentary disorders related to intestinal diseases, the malignant melanocyte, benign proliferations of melanocytes (nevi) and phototherapy with narrow band UV All clinical chapters include the latest genetic findings and advances in therapy More than 400 color images of virtually all clinical disorders The book is ideal for all dermatologists and especially those interested in disorders of pigmentation. It is of particular use for pediatric dermatologists and medical geneticists caring for patients with congenital and genetic pigmentary disorders. This authoritative volume will fill the gap for dermatology training programs that do not have local experts on pigmentation. Basic and cosmetic scientists studying pigmentation and melanocytes will find the science and clinical correlations very useful in showing human significance and relevance to the results of their studies.
Download or read book From the Notebooks of Melanin Sun written by Jacqueline Woodson and published by Penguin. This book was released on 2010-01-07 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-time Newbery Honor author Jacqualine Woodson explores race and sexuality through the eyes of a compelling narrator Melanin Sun has a lot to say. But sometimes it's hard to speak his mind, so he fills up notebooks with his thoughts instead. He writes about his mom a lot--they're about as close as they can be, because they have no other family. So when she suddenly tells him she's gay, his world is turned upside down. And if that weren't hard enough for him to accept, her girlfriend is white. Melanin Sun is angry and scared. How can his mom do this to him--is this the end of their closeness? What will his friends think? And can he let her girlfriend be part of their family?
Download or read book The Alkaloids written by and published by Elsevier. This book was released on 2003-10-13 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series is world-renowned as the leading compilation of current reviews of this vast field. Internationally acclaimed for more than forty years, The Alkaloids: Chemistry and Biology, founded by the late Professor R.H.F. Manske, continues to provide outstanding coverage of this rapidly expanding field. Each volume provides, through its distinguished authors, up-to-date and detailed coverage of particular classes or sources of alkaloids. Up-to-date reviews on a large and very important group of natural products from both a chemical and biological perspective Comprehensive dynamic reviews written by the leading authors in the respective fields Broader coverage than before on the biological aspects
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 Science written by John Michels (Journalist) and published by . This book was released on 1912 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Melanin Is Worth More Than Gold written by Nnamdi Azikiwe and published by The Mhotep Corporation. This book was released on 2020-05-16 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Who would have thought preparations for a March 2014 Sacred Libation Ceremony honoring one-hundred forty-eight African American women lynched in America would result in the observation melanin is worth more than gold? Dr. Frances Cress Welsing first told us the chemical melanin is produced through a process known as melanogenesis upon introduction of the chemical tyrosine to the enzyme tyrosinase. Melanin is found in such diverse places as bird feathers, animal fur, reptile scales, microorganisms, cephalopod ink, mushrooms and even fossils. Additionally, melanin is found in the hair, skin and eyes of people. Melanin is subjected to intense scientific scrutiny. Nevertheless, the highly educated people studying it had no idea melanin is worth more than gold. In June 2014 a post to the Keyamsha the Awakening blog openly declared melanin was worth $353 a gram and $300 a gram more than gold. Shortly afterwards, hoaxers began bombarding the blog with comments claiming "melanin thieves" were harvesting melanin from Black people. The hoax was easily falsified. The hoaxers made certain to never mention the company selling melanin extracted from the ink of sepia officinalis, the common cuttlefish. During the intervening years the melanin thieves hoaxers persisted in their efforts. In March 2017, the melanin thieves hoaxers launched a "Melanin Twitter bomb" involving the dollar value of melanin after publicity of black women and girls missing in Washington, D.C. was released. Their actions exposed a frailty in their psyche. They also reveal it is possible to wipe out false information involving melanin and take the melanin challenged inferiority complex (aka racism/white supremacy) along for the ride. It then became clear the time had come to enter the fray and dispel the myths about melanin. This book completely obliterates the false narrative of melanin. Perceiving facts from a melanin-centered perspective bestows upon us an expanded awareness of the world and our place in it. It helps provide the average person a means to immerse themselves in melaninology and emerge a "melaninologist." Essentially, we get to know ourselves. To date no other path for the public to independently verify, or falsify, outlandish claims regarding melanin being worth more than gold on their own without any "guru" to guide them have been made available. At this writing, melanin is worth over $395 a gram more than gold. In ancient Kemet (misnomered Egypt) such words were known as hekau or words of power with the ability to heal. For nearly one-hundred years, since August 13, 1920, melanin put the "B" in R.B.G. and the "Black" in Red, Black and Green as the flag of Africans, at home and abroad.. Those are hekau, also. Our Blood, Our Melanin and Africa unites us. More hekau. The Afro, official currency of the United States of Africa, also known as the African Union, is worth $2.22. We are swathed in hekau to such an extent Mchakato Wa Uponyaji (Swahili for the process of healing) has begun. All of which indicates we are living in a new era: the era when all the generations of man can be called blessed on a planet that works for everyone. This era demands we convene the Ubuntu Convention. That plebiscite sets the stage for drafting the Ubuntu Declaration. In emulating the success of the August 1920 Universal Negro Improvement Association convention, we deliberately create the world where we intend to live. The revival of the U.N.I.A. with 12 million dues-paying card-carrying members positions the organization to have a treasury flush with over $400 million liquid. All of which represents a quantum shift in awareness, perception and power underway as you read this. Through our own actions we bring about the total, complete, and absolute Redemption of Africa for all time.
Download or read book Current Topics in Medical Mycology written by Michael R. McGinnis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
