Abstract:
:Vitamin A deficiency has been shown to affect vision, reproduction, cellular differentiation, and maintenance of epithelial and skeletal tissues. Different vitamin A compounds, i.e., retinol and retinoic acid, vary in their ability to fulfill these biologic functions. Aside from vision, the exact molecular mechanisms of action for retinoids are largely unexplained. High doses of vitamin A are known to increase bone resorption through stimulation of lysosomal proteolytic activity, which also leads to increased secretion of PTH. Deficiency of retinol affects bone morphology by increasing bone thickness. Using a standardized guinea pig model, bone formed entirely during a retinol-deficient (A --) period contained less calcium and took up more 35S into glycosaminoglycan (GAG) fractions in vitro than did control (A+) samples. Using rat calvaria, a pulse-chase experiment indicated that the rate of 35S loss from calvaria cultured with A -- serum was lower than in controls. Thus, retinol deficiency seems to increase the amount of sulfated GAG in bone through a defect in the degradation of GAG.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Navia JM,Harris SSdoi
10.1111/j.1749-6632.1980.tb21326.xsubject
Has Abstractpub_date
1980-01-01 00:00:00pages
45-57eissn
0077-8923issn
1749-6632journal_volume
355pub_type
杂志文章abstract::Peripheral sympathetic nerve terminals in many tissues, but not all, are endowed with beta-adrenoceptors. Activation of these result in an enhancement of noradrenaline release evoked by electrical nerve stimulation. These so-called presynaptic beta-adrenoceptors are possibly located on the outer surface of the varicos...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1990.tb32018.x
更新日期:1990-01-01 00:00:00
abstract::Single-agent topotecan is an active drug in chemotherapy-naive MDS and CMML and, to a lesser degree, in refractory/relapsed acute leukemias, low-/intermediate-grade lymphoma, and myeloma. Its combination with cytosine arabinoside induces complete remissions in high-risk MDS/CMML. A triple-combination regimen of cyclop...
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.tb07043.x
更新日期:2000-01-01 00:00:00
abstract::Jopock (Jpk), a transacting factor associated with the position-specific regulatory element of murine Hoxa-7, has shown to induce cell death in both prokaryotic and eukaryotic cells when introduced and overexpressed. Since Jpk protein harbors a transmembrane domain (TM) and a putative endoplasmic reticulum (ER) -reten...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1397.011
更新日期:2007-01-01 00:00:00
abstract::Especially since the (re-)discovery of T cell subpopulations with specialized regulatory activities, mechanisms of anti-inflammatory T cell regulation are studied very actively and are expected to lead to the development of novel immunotherapeutic approaches, especially in chronic inflammatory diseases. Heat shock pro...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1196/annals.1391.020
更新日期:2007-10-01 00:00:00
abstract::Fibronectin is a ubiquitous extracellular matrix (ECM) protein known to play a critical role in cell adhesion. In the present study we dissected the effects of glucocorticoids and cyclic adenosine 3',5'-monophosphate (cAMP) on FN expression in cultures of cytotrophoblasts isolated from human term placentas to identify...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1994.tb21741.x
更新日期:1994-09-30 00:00:00
abstract::Natural systems harbor complex interactions that are fundamental parts of ecology and evolution. These interactions challenge our inclinations and training to seek the simplest explanations of patterns in nature. Not least is the likelihood that some complex processes might be missed when their patterns look similar t...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.12974
更新日期:2015-12-01 00:00:00
abstract::This paper reports CFD-simulations of the turbulent flow, pressure loss and heat transfer occurring in ribbed passages. The channel section is rectangular, with an aspect ratio of 2.04. Ribs are square cross-section, their height is 10% of the channel height, and their inclination is varied from 90 degrees to 33 degre...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2001.tb05882.x
更新日期:2001-05-01 00:00:00
abstract::This chapter discusses the influence of drama in the author's background in conceptualizing psychoanalytic theory and practice. The history of ideas relevant to a dramaturgical analysis from Freud to Kohut's revolution, with additional modifications by relational psychoanalysis, is explored. The author poses a trimoda...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2009.04355.x
更新日期:2009-04-01 00:00:00
abstract::It has been suggested that obese children have increased problems with self-esteem and depression when compared to the normal pediatric population. Fifty-one consecutive patients enrolled in a hospital based weight management program received the CDI and the PHSCS as part of their initial evaluation. There were 24 mal...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1993.tb18869.x
更新日期:1993-10-29 00:00:00
abstract::The aim of this study was to reevaluate the role of infection in inflammatory bowel disease (IBD). Sera from 119 patients with IBD [80 with Crohn's disease (CD); 39 with ulcerative colitis] and 98 healthy controls were assessed using the Bio-Rad BioPlex 2200 for the presence of Toxoplasma gondii, cytomegalovirus, Epst...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2009.04673.x
更新日期:2009-09-01 00:00:00
abstract::Epidemiological observations, clinical mechanistic studies, and basic laboratory research suggest that estrogen therapy is associated with beneficial cardiovascular effects in postmenopausal women. Estrogen has a multitude of biological effects that may account for this apparent benefit (which remains to be proved in ...
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.tb04016.x
更新日期:2001-12-01 00:00:00
abstract::The membrane domain of the Na(+)/Ca(2+) exchanger (NCX) contains two conserved internal repeat sequences, designated the alpha-1 and alpha-2 repeats. We have studied the topological disposition of residues in the alpha repeats and a neighboring region by substituted cysteine accessibility scanning as well as the funct...
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.tb04710.x
更新日期:2002-11-01 00:00:00
abstract::In the present study, the ability of high-dose androgens, namely AAS, administered during adolescence to facilitate aggressive behavior in experimental animals was examined. Data from these studies show clearly that exposure to high doses of multiple AAS during adolescent development can predispose animals to intense ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1996.tb32546.x
更新日期:1996-09-20 00:00:00
abstract::Landesberg and Sideman's four state model of the cardiac cross-bridge (XB) hypothesizes a feedback of force development to Ca(2+) binding by troponin C (TnC). We have further modeled this behavior and observed that the force (F)-Ca(2+) relationship as well as the F-sarcomere length (SL) relationship and the time cours...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1341.031
更新日期:2005-06-01 00:00:00
abstract::After nearly a century of inquiry, the cause of Alzheimer's disease (AD) remains to be found. In this review, basic and clinical evidence is presented that assembles and hypothetically explains most of the key pathologic events associated with the development of AD. These pathologic events are triggered in AD by impai...
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.tb05572.x
更新日期:2000-01-01 00:00:00
abstract::Recent evidence has suggested that the superoxide and nitric oxide-derived reactive oxygen species peroxynitrite (ONOO-) may play a significant role in the acute pathophysiology of brain injury. One pharmacological mechanism by which ONOO(-)-mediated damage might be interrupted is by the administration of scavenging c...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1999.tb08025.x
更新日期:1999-01-01 00:00:00
abstract::Decreased postural stability is observed in most astronauts immediately following spaceflight. Because ataxia may present postflight operational hazards, it is important to determine the incidence of postural instability immediately following landing and the dynamics of recovery of normal postural equilibrium control....
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1992.tb25253.x
更新日期:1992-05-22 00:00:00
abstract::Long-lived proteins undergo age-related postsynthetic modifications by glycation and advanced glycation end products (AGEs), which destabilize them by altering their conformation and charge. It was accidentally discovered that ornithine (orn) increased with age in acid hydrolyzates of human skin collagen and lens crys...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1333.015
更新日期:2005-06-01 00:00:00
abstract::To evaluate the effect of Lactobacillus casei on the effectiveness of the Mexican bovine babesiosis mixed vaccine, 20 bovines were randomly allocated into four groups of five animals (I, II, III, and IV). At day -2 animals in groups I and II were inoculated with saline solution by intramuscular route (i.m.) and animal...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1428.071
更新日期:2008-12-01 00:00:00
abstract::Hyperprolactinemia is often observed in lymphocytic hypophysitis (LYH). To clarify the possible autoimmune pituitary involvement in patients with apparently idiopathic hyperprolactinemia we investigated the presence of antipituitary antibodies (APA) in hyperprolactinemic patients with idiopathic hyperprolactinemia and...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1381.014
更新日期:2007-06-01 00:00:00
abstract::Tyrosine hydroxylase (TH) is the rate-limiting enzyme in catecholamine biosynthesis. Does common genetic variation at human TH alter autonomic activity and predispose to cardiovascular disease? We undertook systematic polymorphism discovery at the TH locus, and then tested variants for contributions to sympathetic fun...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1410.085
更新日期:2008-12-01 00:00:00
abstract::In an ever-changing environment, animals must learn new behavioral strategies for the successful procurement of food, sex, and other needs. Synaptic plasticity within the mesolimbic system, a key reward circuit, affords an animal the ability to adapt and perform essential goal-directed behaviors. Ironically, drugs of ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2009.05154.x
更新日期:2010-02-01 00:00:00
abstract::Soluble decoy receptor 3 (DcR3), a member of the tumor necrosis factor receptor superfamily, has recently been reported to increase osteoclast (OC) differentiation. Its impact on the skeleton was reinforced by a study on DcR3 transgenic mice showing a decreased bone mass through the elevation of OC number, providing s...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2009.05304.x
更新日期:2010-03-01 00:00:00
abstract::Comprehensive data mining of the scientific literature has become an increasing challenge. To address this challenge, Elsevier's Pathway Studio software uses the techniques of natural language processing to systematically extract specific biological information from journal articles and abstracts that is then used to ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.13270
更新日期:2017-01-01 00:00:00
abstract::Neuromodulation denotes controlled electrical stimulation of the central or peripheral nervous system. The three forms of neuromodulation described in this paper-deep brain stimulation, vagus nerve stimulation, and transcranial magnetic stimulation-were chosen primarily for their demonstrated or potential clinical use...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2003.tb07506.x
更新日期:2003-05-01 00:00:00
abstract::Despite the high prevalence of adolescent smoking, few studies have examined nicotine sensitivity during this developmental period. In the present study we examined adolescent and adult rats' preference/aversion for a flavor previously paired with nicotine. Paired (nicotine + Kool-Aid) and unpaired (Kool-Aid) solution...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1308.065
更新日期:2004-06-01 00:00:00
abstract::Evidence is presented that the multisensory parieto-insular cortex is the human homologue of the parieto-insular vestibular cortex (PIVC) in the monkey and is involved in the perception of verticality and self-motion. Acute lesions (patients with middle cerebral artery infarctions) of this area caused contraversive ti...
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.tb09193.x
更新日期:1999-05-28 00:00:00
abstract::Conservation translocation of species varies from restoring historic populations to managing the relocation of imperiled species to new locations. We review the literature in three areas--translocation, managed relocation, and conservation decision making--to inform conservation translocation under changing climates. ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.12050
更新日期:2013-05-01 00:00:00
abstract::Cancer is a primary public health problem and the second leading cause of death worldwide. It causes life-threatening malignancies and results in high financial costs for both patients and the healthcare system. Hence, it is important to develop effective long-term strategies pertaining to prevention and control of ca...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.13446
更新日期:2017-08-01 00:00:00
abstract::Angiogenesis is a prerequisite for tumor expansion and metastasis. The angiogenic potential of the heparin-binding growth factors acidic fibroblast growth factor (FGF) and basic FGF has been demonstrated in various publications. We studied the inhibitory effects of suramin and the polysulfated heparinoids pentosan pol...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1999.tb09427.x
更新日期:1999-01-01 00:00:00