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Author: Kok Keng Tee
Publisher: Frontiers Media SA
ISBN: 2889668991
Category : Science
Languages : en
Pages : 222
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Book Description
Author: Kok Keng Tee
Publisher: Frontiers Media SA
ISBN: 2889668991
Category : Science
Languages : en
Pages : 222
Get Book Here
Book Description
Author: Kok Keng Tee
Publisher: Frontiers Media SA
ISBN: 2889769402
Category : Science
Languages : en
Pages : 260
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Book Description
Author: Keith A. Crandall
Publisher: JHU Press
ISBN: 9780801861512
Category : Medical
Languages : en
Pages : 524
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Book Description
Wolinsky.-- "European Molecular Biology Organization Reports"
Author: Itachi Publications
Publisher: Itachi Publications
ISBN: 9783763043071
Category : Health & Fitness
Languages : en
Pages : 0
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Book Description
Human Immunodeficiency Virus (HIV) belongs to the Retroviridae family and the sub family Lentivirinae. Infection with HIV usually culminates in AIDS over a variable period of time. AIDS stands for Acquired Immunodeficiency Syndrome. HIV primarily infects critical cells in the human immune system such as helper T cells (specifically CD4 T cells, macrophages, and dendritic cells). The infection results in the loss of natural defense against trivial infections and makes the patient susceptible to various opportunistic infections resulting in the eventual death of the patient. HIV has a diploid RNA genome encoding nine viral proteins. HIV-1, demonstrates high genetic diversity due to lack of proof reading ability of its enzyme, reverse transcriptase. Although the HIV-1 epidemic in India is mainly due to subtype C, other subtypes have also been reported from different parts of India. To combat the infection and for the development of new anti-viral strategies, it is necessary to appreciate the extent of naturally found variations in HIV-1 genes. The focus of the present work was to study the naturally occurring novel mutations in HIV-1 Rev. LTR, Nef and Vpu genes. Since Rev is an important regulatory gene of HIV-1 genome for expression of HIV-1 structural proteins and production of genomic RNA. We first study the genetic and functional characterization of HIV-1 Rev derived from HIV-1 infected individuals in North India to find out the levels of genetic changes and to determine their functional relevance.
Author: African Services Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
Author: Thomas J. Hope
Publisher:
ISBN: 9781461496106
Category : AIDS (Disease)
Languages : en
Pages :
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Book Description
Author: Angus G. Dalgleish
Publisher: Elsevier
ISBN: 0080534082
Category : Medical
Languages : en
Pages : 569
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Book Description
HIV and the New Viruses presents cutting-edge reviews of persistent human virus infections as a coherent collection for the first time. These cover recently discovered viruses such as HHV-6, HHV-8 and HCV, as well as the latest research on HIV. This comprehensive and updated reference includes an in-depth study of the major issues in the epidemiology, pathogenicity, molecular virology, host responses and management of conditions associated with those viruses. Information on new pharmaceuticals and vaccine developments is also included. Edited by the leading experts in the field, HIV and the New Viruses will be essential reading for postgraduates, clinicians and researchers in virology, immunology, cancer, molecular biology and the pharmaceutical industry. Presents cutting-edge reviews of persistent human virus infections as a coherent collection for the first time Includes an in-depth study of the major issues in the epidemiology, pathogenicity, molecular virology, host responses, and management of conditions associated with those viruses
Author: Marie Leoz
Publisher:
ISBN:
Category :
Languages : fr
Pages : 15
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Book Description
Les VIH-1 de groupe 0 (VIH-1/0) sont des variants rares, essentiellement retrouvés au Cameroun où ils représenteraient plusieurs milliers de cas. Les causes de leur faible diffusion restent méconnues: leur émergence serait aussi ancienne que les VIH-1 de groupe M, pourtant devenus pandémiques. En près d'un siècle, les VIII-1/0 ont développé une importante diversité génétique, dont la description reste ambiguë du fait de l'existence de plusieurs nomenclatures basées sur un nombre restreint de séquences génétiques. Peu de données sont disponibles quant aux causes de cette diversité et à son impact sur diverses propriétés virologiques. La mutation Y181C de la Transcriptase Inverse (TI) a toutefois été proposée comme critère de classification des VIH-1/0, et suspectée de conférer un avantage réplicatif à ceux chez qui elle serait naturellement présente. Ce travail a donc constitué à caractériser plus largement la diversité génétique des vm-vo, et à explorer la dynamique de leur évolution au cours du temps à l'aide de méthodes bayésiennes. Nous avons ainsi identifié deux phases de diversification successives, liées au développement de deux sous-groupes: T, minoritaire et ayant émergé dans les années 1960, et H, majoritaire et ayant émergé du sous-groupe T dans les années 1980. La présence de la mutation 181C a été associée au sous-groupe H, ce qui a conduit à la définition de trois populations virales: H/181C-like, H/181Y-like et T/181Y-like. Une forte conservation du motif signature K28, K103, 1142, D174, L178 au niveau de la poche non catalytique de la TI des virus H/181C-like a été mise en évidence, mais aucun de ces marqueurs (présence de la mutation 181C, appartenance à la population H/181C-like ou présence du motif associé) ne semble être lié à un plus haut niveau de réplication virale in vivo. Afin de développer les connaissances sur le tropisme des VIH-110, une propriété en lien avec l'évolution 1 clinique de l'infection par VIH-11M ou VIH-2, nous avons développé un outil de phénotropisme basé sur la production de pseudovirus présentant un clone de glycoprotéine d'Enveloppe V111-1/0. Nous avons montré que les 16 Enveloppes produites n'utilisaient que le corécepteur CCR5, malgré l'exploration d'échantillons séquentiels et/ou prélevés en phase d'infection tardive. Enfin, pour permettre l'analyse des propriétés phénotypiques liées aux différentes populations VIH-1/0, nous avons participé à la production de trois nouveaux de clones moléculaires infectieux représentant deux souches H/181C-like et une souche T/181Y-like. Ces clones ont contribué à démontrer comment les VIH-1/0 contrecarraient l'action de la Tetherine et modulaient l'expression de NFKB par le biais des protéines Nef et Vpu. En conclusion, nos résultats suggèrent une dynamique d'évolution des V111-1/0 plus complexe que suspectée jusqu'alors, ayant entraîné l'émergence de deux sous-groupes distincts. Nous avons unifié les 1 différents systèmes de nomenclature, décrit des caractéristiques distinguant trois populations virales, et développé de nouveaux outils pour contribuer à une meilleure connaissance des conséquences de leur diversité génétique.
Author: William R. Jacobs, Jr.
Publisher: John Wiley & Sons
ISBN: 1683673050
Category : Medical
Languages : en
Pages : 1379
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Book Description
Can today's innovative practices and molecular tools tame this ancient disease? One third of the world's population is infected with tuberculosis (TB), with about 10 million new cases annually. To combat TB and its agent, Mycobacterium tuberculosis, the World Health Organization launched The End TB Strategy, which aims to slash the suffering and cost of TB by 2035. This makes the second edition of Tuberculosis and the Tubercle Bacillus, edited by Jacobs, McShane, Mizrahi, and Orme, an extremely valuable resource for scientists and clinicians. The editors have gathered their colleagues from around the world to present the latest on the molecular biology of M. tuberculosis and related species, the host-pathogen interactions that enable invasion, and the host's immune response to M. tuberculosis infection. The basic, clinical, and translational research presented in this book supports the goals of WHO's End TB Strategy by driving toward the development of effective vaccines, rapid molecular diagnostics, and anti-TB drugs. Creating an effective tuberculosis vaccine. Understand the innate and adaptive immune response to M. tuberculosis infection, its study in established animal models, and how this information is being used to develop new vaccines against TB. Formulating new antituberculosis drugs. Learn the challenges and methods for evaluating new drugs in preclinical trials with a focus on drugs that work against "persisters" and those that act on the electron transport complex and ATP synthase of M. tuberculosis. Overcoming the challenges of diagnosing tuberculosis. Review new diagnostic tools that are simple, rapid, affordable, specific, sensitive, and safe, including molecular-based diagnostic methods such as GeneXpert MTB/RIF. Using molecular, genomic, and bioinformatics tools to understand the biology and evolution of Mycobacterium. Explore current research on the molecular mechanisms that M. tuberculosis uses to evade the immune system, enter a state of nonreplicating persistence, and become reactivated. The second edition of Tuberculosis and the Tubercle Bacillus presents the latest research on a microorganism that is exquisitely well adapted to its human host. This pathogen continues to confound scientists, clinicians, and public health specialists, who will all find much valuable information in this comprehensive set of reviews.
Author: Paul Volberding
Publisher: Elsevier Health Sciences
ISBN: 141602882X
Category : Medical
Languages : en
Pages : 850
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Book Description
HIV/AIDS management poses many different challenges around the world, and the therapies available in the West are often not economically feasible in developing countries. This new book is the first to address the myriad of clinical difficulties faced by health practitioners worldwide in managing HIV/AIDS. Edited by the same authorities responsible for the highly respected reference "The Medical Management of AIDS," with Associate Editors that include the President of the International AIDS Society and a preeminent opinion leader in the fight against AIDS in Africa, and authored by a "who's who" of current global experts on HIV and AIDS medicine, this visionary text presents all the practical, indispensable information that clinicians everywhere need to offer their patients the best possible care. Access reliable, up-to-the-minute guidance that addresses the realities of HIV/AIDS management in your geographical region, thanks to contributions from a global cast of renowned expert clinicians and researchers. Locate the clinically actionable information you need quickly with an organization that mirrors the current state of the AIDS epidemic and the different needs of Western vs. developing-world patients and clinicians. Diagnose AIDS manifestations confidently by comparing them to full-color clinical images. Review essential data quickly through numerous at-a-glance tables.
