Abstract:
:This paper will review our recent data relevant to the antioxidant effects of N-acetylserotonin (NAS), the immediate precursor of melatonin, the pineal gland indole. Mechanisms of the antioxidant effects of NAS might involve interaction with melatonin type 3 receptors and nonreceptor mechanisms such as stimulation of glutathione peroxidase, an antioxidant enzyme; inhibition of lipid peroxidation; suppression of phospholipase A2 activation; attenuation of tumor necrosis factor-alpha production; prevention of pathological opening of the mitochondrial permeability transition pores; and inhibition of sepiapterin reductase, the key enzyme of biosynthesis of tetrahydrobiopterin, the essential cofactor of nitric oxide synthase. NAS actions on some of these enzymes might be receptor-mediated. Protective effects of NAS against oxidative damage are independent from the effect of melatonin and, depending on the model, are 5 to 20 times stronger than that of melatonin. Antioxidant effect of NAS might underpin its cognition-enhancing, antiaging, antidepressant, antihypertensive, and antitumor effects. NAS and its derivatives might be useful in protection against oxidative stress-related disorders (cell death, mutagenesis, aging) and diseases (sepsis, cancer, postischemic trauma, Alzheimer's disease, parkinsonism).
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Oxenkrug Gdoi
10.1196/annals.1344.029subject
Has Abstractpub_date
2005-08-01 00:00:00pages
334-47eissn
0077-8923issn
1749-6632pii
1053/1/334journal_volume
1053pub_type
杂志文章abstract::Tight junctions (TJs) regulate paracellular barriers and claudins (Cld) form the backbone of TJ strands. To elucidate the molecular mechanism of claudin polymer formation, TJs were reconstituted by claudin transfection of TJ-free HEK293 cells. Therewith, typical TJ stands can be found at cell-cell contacts. In additio...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2012.06546.x
更新日期:2012-06-01 00:00:00
abstract::In this limited review, it has only been possible to highlight some of the more significant interactions of peptides with the blood-brain barrier. The literature has been reviewed extensively in recent years, and the major reviews are included in the references. Certainly one of the major outstanding problems is an el...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1994.tb19810.x
更新日期:1994-10-31 00:00:00
abstract::Results of therapeutic trials of transfer factor in a number of laboratories suggest clinical benefit and enhancement of immunological reactivity in patients with primary or secondary immunodeficiency diseases. Long term follow-up of 32 patients with the Wiskott-Aldrich syndrome suggested that transfer factor caused c...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1979.tb47116.x
更新日期:1979-01-01 00:00:00
abstract::Dysregulation of apoptosis is associated with the pathogenesis of organ-specific autoimmune diseases, through altered target organ susceptibility. Apoptosis signaling pathways can be initiated through activation of death receptors such as Fas. A comparative analysis of the expression of Fas and FasL, the antiapoptotic...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2002.tb04253.x
更新日期:2002-06-01 00:00:00
abstract::Six highly trained marathon runners developed myocardial infarction. One of the two cases of clinically diagnosed myocardial infarction was fatal, and there were four cases of angiographically-proven infarction. Two athletes had significant arterial disease of two major coronary arteries, a third had stenosis of the a...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1977.tb38232.x
更新日期:1977-01-01 00:00:00
abstract::Anemia affects a third of the world's population and contributes to increased morbidity and mortality, decreased work productivity, and impaired neurological development. Understanding anemia's varied and complex etiology is crucial for developing effective interventions that address the context-specific causes of ane...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.14092
更新日期:2019-08-01 00:00:00
abstract::Beta-amyloid (Abeta) is a main component of senile plaques in Alzheimer's disease (AD) that induces neuronal cell death. Since reactive oxygen species (ROS) have been implicated in Abeta-induced neurotoxicity, considerable attention has recently been focused on identifying naturally occurring antioxidative phenolic ph...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1397.051
更新日期:2007-01-01 00:00:00
abstract::Lambert-Eaton myasthenic syndrome (LEMS) is an autoimmune disorder caused by antibodies directed against the voltage-gated calcium channels that provide the calcium ion flux that triggers acetylcholine release at the neuromuscular junction. To study the pathophysiology of LEMS and test candidate therapeutic strategies...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.13512
更新日期:2018-01-01 00:00:00
abstract::In in vitro test systems, chrysotile is markedly toxic, causes chromosomal aberrations, and is capable of inducing morphological and preneoplastic transformation. In carefully designed animal experiments, chrysotile produces lung cancer and mesothelioma as effectively as do the amphiboles tested. Human population stud...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1991.tb24496.x
更新日期:1991-12-31 00:00:00
abstract::A host of missense mutations in muscle nicotinic receptor subunits have been identified as the cause of congenital myasthenic syndromes (CMS). Two classes of CMS phenotypes have been identified: slow channel myasthenic syndromes (SCCMSs) and fast channel myasthenic syndromes (FCCMSs). Although both have similar phenot...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1196/annals.1254.015
更新日期:2003-09-01 00:00:00
abstract::In Wegener's granulomatosis (WG), antiproteinase 3 (PR3) autoantibodies (PR3-ANCA) are crucial in the development of generalized vasculitis. Wegener's pathognomonic lesion, a granulomatous inflammation of the upper and lower respiratory tract, contains abundant lymphocytes and macrophages. Lymphocyte clusters in germi...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1196/annals.1361.042
更新日期:2005-06-01 00:00:00
abstract::This study surveyed serum concentrations of vitamins, electrolytes, and trace elements in subjects seropositive for HIV-1 by ELISA and confirmatory Western blot. Thirty subjects (26 males, 4 females) were recruited at a hospital clinic. Seventeen were classified as having mild or severe ARC (AIDS-related complex), 7 h...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1990.tb00146.x
更新日期:1990-01-01 00:00:00
abstract::The number of physiologic and metabolic phenomena amenable to analysis using magnetic resonance (MR) techniques is increasing every year. MR techniques can now evaluate tissue parameters relevant to TCA cyclemetabolism, anerobic glycolysis, ATP levels, blood-brain barrier permeability, macrophage infiltration, cytotox...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1999.tb07828.x
更新日期:1999-01-01 00:00:00
abstract::The past three decades of clinical disappointments in treating stroke must compel us to rethink our strategy. Given the enormous complexity of the clinical disease, the "one size fits all" approach to stroke treatment is unlikely to succeed. The effective treatment of stroke aimed at reversing ischemic injury will req...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2009.05381.x
更新日期:2010-06-01 00:00:00
abstract::Exposure of LLC-PK1 epithelial cell cultures to phorbol ester tumor promoters causes immediate translocation of protein kinase C-alpha (PKC-alpha) from cytosolic to membrane-associated compartments. With a very similar time course, a dramatic and sustained increase in tight junctional (paracellular) permeability occur...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2000.tb05246.x
更新日期:2000-01-01 00:00:00
abstract::The orbital evolution of about 26,000 Jupiter-crossing objects and 1,500 resonant asteroids under the gravitational influence of planets was investigated. The rate of their collisions with terrestrial planets was estimated by computing the probabilities of collisions based on random-phase approximations and the orbita...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1311.004
更新日期:2004-05-01 00:00:00
abstract::The overall goal of this study is to unravel the role(s) played by glial cell line-derived neurotrophic factor (GDNF) in the fate of spermatogonial stem cells. There is great interest in the biology of spermatogonial stem cells, or A(single) spermatogonia, because of their importance in the treatment of infertility, t...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1336.010
更新日期:2005-12-01 00:00:00
abstract::Congestive heart failure (CHF) is characterized by neurohumoral excitation. Increased sympathetic drive and activation of the reninangiotensin-aldosterone system (RAAS), with vasoconstriction and volume retention, are hallmarks of the CHF syndrome. Treatment strategies have targeted the peripheral influences of these ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2001.tb03697.x
更新日期:2001-06-01 00:00:00
abstract::The finding of an association between the epsilon 4 allele of the APOE locus and the early expression of late-onset Alzheimer's disease (AD) is robust. However, the estimates of the proportion of AD cases carrying one or more copies of the epsilon 4 allele vary dramatically between studies (highest estimates being 180...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1996.tb32594.x
更新日期:1996-12-16 00:00:00
abstract::Autophagy is a major intracellular pathway for the degradation and recycling of long-lived proteins and cytoplasmic organelles. Like apoptotic programmed cell death, autophagy is an essential part of growth regulation and maintenance of homeostasis in multicellular organisms. Autophagic vacuole formation is also activ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1196/annals.1363.015
更新日期:2005-12-01 00:00:00
abstract::During their development, mononuclear phagocytes express a changing profile of proteinases that may participate in the degradation of elastin and other extracellular matrix components. Neutrophil elastase is produced and stored in azurophil-like granules in immature mononuclear phagocytes. Monocytes contain small amou...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1991.tb17007.x
更新日期:1991-01-01 00:00:00
abstract::Data show that specifically chelating lysosomal redox-active iron can prevent most H(2)O(2)-induced DNA damage. Lysosomes seem to contain the major pool of redox-active labile iron within the cell. Under oxidative stress conditions, this iron may then relocate to the nucleus and play an important role for DNA damage b...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1297.048
更新日期:2004-06-01 00:00:00
abstract::In the frame of the free-radical hypothesis of aging and literature data on increased life span of mated animals, we evaluated brain, kidney, and liver lipid peroxidation in C57Bl/6J mice of various ages and compared lipid peroxidation activity in mated and non-mated mice of both genders. An aging-associated increase ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2003.tb07526.x
更新日期:2003-05-01 00:00:00
abstract::One hundred and twenty-seven Brahman cattle from several locations in Martinique (FWI), reared under different environmental conditions, were followed over three years and checked for clinical signs of dermatophilosis. To confirm that these animals had been in contact with the pathogen Dermatophilus congolensis, their...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1996.tb53525.x
更新日期:1996-07-23 00:00:00
abstract::The following, from the 12th OESO World Conference: Cancers of the Esophagus, includes commentaries on the animal reflux-inflammation models for Barrett's esophagus and esophageal adenocarcinoma; genomic/epigenomic analyses; eflornithine-based combinations; the molecular derangements that promote neoplastic transforma...
journal_title:Annals of the New York Academy of Sciences
pub_type:
doi:10.1111/nyas.12529
更新日期:2014-09-01 00:00:00
abstract::Experiments with enzymes in situ that are dependent on ascorbic acid for maximum activity will provide critical information about ascorbic acid requirements. Our work with chromaffin tissue as a model system eventually will result in the determination of two dose-response curves for norepinephrine biosynthesis, repres...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1987.tb23779.x
更新日期:1987-01-01 00:00:00
abstract::The human serum resistance-associated (SRA) gene was identified in 28 (80%) of the 35 T.b. rhodesiense trypanosomes from parasitologically confirmed sleeping sickness cases, using the primers designed by Radwanska and in 27 (77.1%) of the same 35 T.b. rhodesiense trypanosomes using the primers designed by Gibson. Howe...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1373.041
更新日期:2006-10-01 00:00:00
abstract::This article reviews the implementation processes for interventions that integrate nutrition and psychosocial stimulation for children under 5 years of age in low- and middle-income countries. We examine the content of these programs, the delivery strategy, intensity and duration, personnel training and supervision, c...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.12313
更新日期:2014-01-01 00:00:00
abstract::Starling's law and the end-systolic pressure-volume relationship (ESPVR) reflect the effect of sarcomere length (SL) on the development of stress (sigma) and shortening by myocytes in the uniform ventricle. We show here that tetanic contractions of rat cardiac trabeculae exhibit a sigma-SL relationship at saturating [...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1420.010
更新日期:2008-03-01 00:00:00
abstract::The endoplasmic reticulum (ER) is responsible for protein processing. In rapidly proliferating tumor cells, the ER tends to be overloaded with unfolded and misfolded proteins due to high metabolic demand. With the limited protein-folding capacity of the ER, tumor cells often suffer from more ER stress than do normal c...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2012.06739.x
更新日期:2012-10-01 00:00:00