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2.
J Biol Chem ; 293(21): 7907-7915, 2018 05 25.
Artigo em Inglês | MEDLINE | ID: mdl-29802139

RESUMO

This paper provides a brief historical sketch of the science of biologically active peptides. It also offers the story of how Ervin G. Erdös, a pioneer in the study of metabolism of various peptides, influenced me through collaborations that span many years. I worked in Dr. Erdös's research laboratories in Oklahoma City, Dallas, and Chicago, and we shared research interests through visits across the Atlantic between the former Yugoslavia and the United States. Among other findings, we discovered angiotensin-converting enzyme in the retina, which opened up a new research direction for many scientists interested in serious ocular diseases. This tribute to my mentor paints a portrait of a man who, in addition to his dedication to science and his seminal discoveries about the metabolism of peptides, took the time to invest in training many young scientists. His fine personal qualities explain why all of those who worked with him hold him in such high regard.


Assuntos
Inibidores da Enzima Conversora de Angiotensina/farmacologia , Fragmentos de Peptídeos/história , Fragmentos de Peptídeos/farmacologia , Peptidil Dipeptidase A/química , Sistema Renina-Angiotensina/efeitos dos fármacos , História do Século XX , História do Século XXI , Humanos
8.
Antiviral Res ; 85(1): 91-100, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19683546

RESUMO

Infection of target cells by HIV is a complex, multi-stage process involving attachment to host cells and CD4 binding, coreceptor binding, and membrane fusion. Drugs that block HIV entry are collectively known as entry inhibitors, but comprise a complex group of drugs with multiple mechanisms of action depending on the stage of the entry process at which they act. Two entry inhibitors, maraviroc and enfuvirtide, have been approved for the treatment of HIV-1 infection, and a number of agents are in development. This review covers the entry inhibitors and their use in the management of HIV-1 infection. This article forms part of a special issue of Antiviral Research marking the 25th anniversary of antiretroviral drug discovery and development, Vol 85, issue 1, 2010.


Assuntos
Inibidores da Fusão de HIV/farmacologia , Inibidores da Fusão de HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , HIV-1/efeitos dos fármacos , Cicloexanos/história , Cicloexanos/farmacologia , Cicloexanos/uso terapêutico , Farmacorresistência Viral , Enfuvirtida , Proteína gp41 do Envelope de HIV/história , Proteína gp41 do Envelope de HIV/farmacologia , Proteína gp41 do Envelope de HIV/uso terapêutico , Inibidores da Fusão de HIV/história , História do Século XX , História do Século XXI , Humanos , Maraviroc , Fragmentos de Peptídeos/história , Fragmentos de Peptídeos/farmacologia , Fragmentos de Peptídeos/uso terapêutico , Triazóis/história , Triazóis/farmacologia , Triazóis/uso terapêutico
12.
Regul Pept ; 128(2): 93-6, 2005 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-15780428

RESUMO

The discovery of glucagon-like peptide 1 (GLP-1) began more than two decades ago with the observations that anglerfish islet proglucagon messenger RNAs (mRNAs) contained coding sequences for two glucagon-related peptides arranged in tandem. Subsequent analyses revealed that mammalian proglucagon mRNAs encoded a precursor containing the sequence of pancreatic glucagon, intestinal glicentin and two glucagon-related peptides termed GLP-1 and GLP-2. Multidisciplinary approaches were then required to define the structure of biologically active GLP-1 7-36 amide and its role as an incretin, satiety hormone and, most recently, a neuroprotective peptide. This historial perspective outlines the use of traditional recombinant DNA approaches to derive the GLP-1 sequence and highlights the challenges and combination of clinical and basic science approaches required to define the physiology and pathophysiology of bioactive peptides discovered through genomics.


Assuntos
Glucagon/história , Fragmentos de Peptídeos/história , Precursores de Proteínas/história , Animais , DNA Complementar/metabolismo , Peixes/genética , Glucagon/genética , Glucagon/metabolismo , Peptídeo 1 Semelhante ao Glucagon , História do Século XX , Hormônios/química , Hormônios/genética , Hormônios/metabolismo , Fragmentos de Peptídeos/genética , Proglucagon , Precursores de Proteínas/genética , Precursores de Proteínas/metabolismo , Proteínas Recombinantes/genética
13.
Regul Pept ; 128(2): 87-91, 2005 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-15780427

RESUMO

The discoverers of secretin already thought of the existence of a chemical excitant for the internal secretion of the pancreas. Numerous experiments have been performed and published between 1906 and 1935 testing the effect of injected or ingested duodenal ("secretin") extracts on fasting or elevated blood glucose levels of normal or diabetic animals and humans with contradictory results. In 1940, after a series of negative dog experiments performed by an opinion leader, the existence of an incretin was considered questionable and further research stopped for more than 20 years. However, after the development of the radio-immunoassay, the incretin-concept has been revived in 1964, showing that significantly more insulin was released after ingestion of glucose than after intravenous injection. The possibility that nerves or one of the known gut hormones were responsible for the incretin effect could be ruled out. In 1970, glucose dependent insulinotropic polypeptide (GIP), and finally, in 1985 glucagon-like peptide 1 (GLP-1) and its truncated form GLP-1(7-36) were recognized as true incretins. Thereafter, multiple antidiabetic qualities and the therapeutic perspectives of GLP-1(7-36) and its analogues and mimetics have been demonstratred.


Assuntos
Polipeptídeo Inibidor Gástrico/história , Glucagon/história , Hipoglicemiantes/história , Fragmentos de Peptídeos/história , Precursores de Proteínas/história , Animais , Diabetes Mellitus/tratamento farmacológico , Polipeptídeo Inibidor Gástrico/uso terapêutico , Peptídeo Liberador de Gastrina/história , Peptídeo Liberador de Gastrina/uso terapêutico , Hormônios Gastrointestinais/história , Hormônios Gastrointestinais/uso terapêutico , Glucagon/uso terapêutico , Peptídeo 1 Semelhante ao Glucagon , Peptídeos Semelhantes ao Glucagon , História do Século XX , História do Século XXI , Humanos , Hipoglicemiantes/uso terapêutico , Insulina/metabolismo , Secreção de Insulina , Fragmentos de Peptídeos/uso terapêutico , Peptídeos/história , Peptídeos/farmacologia , Precursores de Proteínas/uso terapêutico , Secretina/uso terapêutico
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