Abstract:
:Penile erection is a complex physiologic event resulting from the interactions of the nervous system on a highly specialized vascular organ. Activation of central nervous system melanocortinergic (MC) receptors with either endogenous or synthetic melanotropic ligands may initiate and/or facilitate spontaneous penile erection. While the CNS contains principally the MC3 and MC4 receptor subtypes, there is conflicting data as to which receptor mediates erection. Although the MC4R is emerging as the principle effector of MC induced erection, the role of the MC3R is poorly understood. Manipulation of each receptor subtype with newly synthesized receptor specific agonists and antagonists, as well as knockout mice, has elucidated their individual contributions. Novel data from our laboratories suggests that antagonism of forebrain MC3R may enhance melanocortin-induced erections. Furthermore, melanocortin agents may interact with better-studied systems such as oxytocinergic pathways at the hypothalamic, brainstem or spinal level. Current therapies for erectile dysfunction target end organ vascular tissue. Manipulation of MC receptors may provide an alternative, centrally mediated therapeutic approach for erectile and other sexual dysfunctions. The non-specific "superpotent" MC agonist, PT-141, which is the carboxylate derivative of MT-II, has reached phase II human trials. Through their centrally mediated activity, melanocortin agonists have potential to treat erectile dysfunction as well as possible applications to the unmet medical needs of decreased sexual motivation and loss of libido.
journal_name
Curr Top Med Chemjournal_title
Current topics in medicinal chemistryauthors
King SH,Mayorov AV,Balse-Srinivasan P,Hruby VJ,Vanderah TW,Wessells Hsubject
Has Abstractpub_date
2007-01-01 00:00:00pages
1098-1106issue
11eissn
1568-0266issn
1873-4294journal_volume
7pub_type
杂志文章abstract::The genetic material in humans contains approximately 6 billion base pairs in the nuclear genome and 16,569 base pairs in the mitochondrial genome [1-3]. In some cases the difference between a healthy and a sick individual consists in only one nucleotide. Thus, it is evident that the pristine replication of the genome...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802608786141098
更新日期:2008-01-01 00:00:00
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journal_title:Current topics in medicinal chemistry
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doi:10.2174/156802607780960537
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journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802610791268765
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journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026033451781
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journal_title:Current topics in medicinal chemistry
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abstract:BACKGROUND:Farnesol is an acyclic sesquiterpene alcohol, endogenously synthesized via the ergosterol pathway. It is a quorum sensing molecule (QSM) that was first discovered in C. albicans, and is involved in the inhibition of hyphae formation. METHODS:This review focuses on the comprehensive details of occurrence, ch...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026619666181210124159
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journal_title:Current topics in medicinal chemistry
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abstract::Three distinct chemical classes for the control of gastrointestinal nematodes are available: benzimidazoles, imidazothiazoles, and macrocyclic lactones. The relentless development of drug resistance has severely limited the usefulness of such drugs and the search for a new class of compounds preferably with a differ...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026023393705
更新日期:2002-07-01 00:00:00
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journal_title:Current topics in medicinal chemistry
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journal_title:Current topics in medicinal chemistry
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doi:10.2174/1568026620666201019112557
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journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802605774370928
更新日期:2005-01-01 00:00:00
abstract::Antimicrobial peptides (AMPs) are a class of peptides found across a wide array of organisms that play key roles in host defense. AMPs induce selective death in target cells and orchestrate specific or nonspecific immune responses. Many AMPs exhibit native anticancer activity in addition to antibacterial activity, and...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
doi:10.2174/1568026620666201021141401
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abstract::Aromatic polyketides represent important members of the family of polyketides, which have displayed a wide assortment of bioactive properties, such as antibacterial, antitumor, and antiviral activities. Bacterial aromatic polyketides are mainly synthesized by type II polyketide synthases (PKSs). Whereas malonyl-CoA is...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
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更新日期:2009-01-01 00:00:00
abstract::Psychiatric diagnosis has long been perceived as more of an art than a science since its foundations lie within the observation, and the self-report of the patients themselves and objective diagnostic biomarkers are lacking. Furthermore, the diagnostic tools in use not only stray away from the conventional medical fra...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026620666200131095328
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abstract::The connection of microbial biosynthetic gene clusters to the small molecule metabolites they encode is central to the discovery and characterization of new metabolic pathways with ecological and pharmacological potential. With increasing microbial genome sequence information being deposited into publicly available da...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026616666151012111046
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Zika is a worldwide pandemic dreadful viral transmission through Aedes mosquito vector. It significantly causes fever, joint pain or rash, and conjunctivitis. Pregnant mothers suffering from Zika viral infection may have fetal abnormalities due to severe neurological problems, characterized by microcephaly a...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
doi:10.2174/1568026619666181120125525
更新日期:2018-01-01 00:00:00
abstract::Prion diseases or transmissible spongiform encephalopathies (TSEs) are fatal neurodegenerative disorders associated with the conformational conversion of the cellular prion protein, PrP(C), into a pathological form known as prion or PrP(Sc). They can be classified into sporadic, inherited and infectious forms. Spontan...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/15680266113136660169
更新日期:2013-01-01 00:00:00
abstract::Multi-drug resistant bacteria are appearing at an alarming rate and impose significant burdens on healthcare systems worldwide. Cationic peptides have shown great promise as broad spectrum antimicrobial agents with a demonstrated ability to kill resistant bacteria, however, issues such as protease susceptibility and t...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802610793176648
更新日期:2010-01-01 00:00:00
abstract::As master regulators of lipid metabolism the peroxisome proliferator activated receptor (PPAR) family controls a wide variety of cellular processes, and thus it is not surprising that a large effort has focussed on discovering agents to pharmacologically modulate activity of these receptors. Early generation PPAR liga...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026033451673
更新日期:2003-01-01 00:00:00
abstract::Several non-cardiovascular drugs have been withdrawn from the market due to their inhibition of hERG K+ channels that can potentially lead to severe heart arrhythmia and death. As hERG safety testing is a mandatory FDArequired procedure, there is a considerable interest for developing predictive computational tools to...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章
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journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026611313040008
更新日期:2013-01-01 00:00:00
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journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802610793176846
更新日期:2010-01-01 00:00:00
abstract::The first proteolytic step in the processing of amyloid precursor protein (APP) to amyloid-beta (Abeta) in the brain is performed by beta-site APP cleaving enzyme (BACE1). This enzyme is a membrane bound aspartic protease with high homology of the catalytic domain to renin and pepsin and of yet unknown physiologic fun...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
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更新日期:2002-04-01 00:00:00
abstract::In recent years, relationship between free radicals and oxidative stress with aging, cancer, atherosclerosis, neurodegenerative disorders, diabetes, and inflammatory diseases became increasingly clear. Confirming the role of oxidants in numerous pathological conditions such as cancer, the antioxidants developed as the...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
abstract::This article reviews recent molecular dynamics simulations of the Alzheimer's amyloid-β protein, the primary component of the amyloid plaques found in the brain of Alzheimer's patients. Different simulation techniques, and their application to the study of monomeric, oligomeric, and fibrillar species is discussed. Thi...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/1568026611212220012
更新日期:2012-01-01 00:00:00
abstract::Thiosemicarbazones (TSCNs) constitute a broad family of compounds (R1R2C=N-NH-C(S)- NR3R4), particularly attractive because many of them display some biological activity against a wide range of microorganisms and cancer cells. Their activity can be related to their electronic and structural properties, which offer a r...
journal_title:Current topics in medicinal chemistry
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doi:10.2174/1568026620666201022144004
更新日期:2021-01-01 00:00:00
abstract::PLA2 enzyme catalyses the hydrolysis of cellular phospholipids at the sn-2 position to liberate arachidonic acid and lysophospholipid to generate a family of pro-inflammatory eicosanoids and platelet activating factor. The generation of pro-inflammatory eicosanoids involves a series of free radical intermediates with ...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802607780487623
更新日期:2007-01-01 00:00:00
abstract::Fragment-based drug discovery (FBDD) needs a biophysical assay to complement, or even replace, biochemical screening. NMR is the best choice for this because NMR delivers many different types of data that impacts medicinal chemistry decisions. There are a multitude of different NMR methods which can be employed to the...
journal_title:Current topics in medicinal chemistry
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更新日期:2007-01-01 00:00:00
abstract::Implantable medical devices are increasingly important in the practice of modern medicine. Unfortunately, almost all medical devices suffer to a different extent from adverse reactions, including inflammation, fibrosis, thrombosis and infection. To improve the safety and function of many types of medical implants, a m...
journal_title:Current topics in medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/156802608783790901
更新日期:2008-01-01 00:00:00
abstract::Aptamers- short nucleic acid or peptide ligands- attracted considerable attention across various disciplines as target specific therapeutic, delivery vehicle and diagnostic tools. The applicability of aptamers - often termed as 'chemical antibodies' - continues to grow and possess certain edge over the antibody counte...
journal_title:Current topics in medicinal chemistry
pub_type: 社论
doi:10.2174/1568026615666150413161707
更新日期:2015-01-01 00:00:00