Abstract:
:The predominance of the evidence from our studies indicates that beta 3-adrenergic-mediated thermogenesis in interscapular BAT is impaired with age. Moreover, upon exposure to cold, beta-adrenergic responsiveness in BAT is restored. However, the exact nature of the beta 3-adrenergic upregulation is unknown. When senescent rats are exposed to cold for as a little as 1 h, the increase in GDP binding is equal to the response in young rats. This indicates that any cold-induced upregulation of the beta-adrenergic signal transduction pathway must respond within this time frame. The senescent rats employed in our studies have been reared throughout their life at or near thermoneutrality. We hypothesize that under such conditions, beta 3-adrenergic signal transduction atrophies with age, whereas the induction pathways for the components of this signal transduction system remain intact. For example, the beta 3-adrenergic stimulation of UCP mRNA in BAT from senescent rats maintained at thermoneutrality is 54% of that of young rats. Upon exposure to the cold, possibly through a combination of enhanced beta 3AR-adenylyl cyclase coupling or enhanced gene expression of components in the signal transduction pathway or both, beta 3-adrenergic responsiveness is restored in the senescent rat.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Scarpace PJdoi
10.1111/j.1749-6632.1997.tb51680.xsubject
Has Abstractpub_date
1997-03-15 00:00:00pages
111-6eissn
0077-8923issn
1749-6632journal_volume
813pub_type
杂志文章abstract::In adult Lurcher mice virtually all cerebellar Purkinje cells have degenerated as a direct consequence of mutant gene action, providing a natural model for studying the effect of cerebellar cortical lesions on the generation of compensatory eye movements. Lurcher mice possess both optokinetic (OKR) and vestibular (VOR...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2002.tb07584.x
更新日期:2002-12-01 00:00:00
abstract::According to a current paradigm cardiovascular diseases can be initiated by exposure of vascular cells to qualitatively modified low-density lipoproteins (LDL). Capillary leakage, an early feature of diabetic retinopathy, results in the exposure of retinal pericytes to modified LDL, including glycated (G-LDL) and heav...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1333.045
更新日期:2005-06-01 00:00:00
abstract::The disturbances in the balance of pro- and antifibrinolytic activity, as observed in AAA and obesity, respectively, have considerable potential for influencing both intra- and extravascular fibrinolytic events and may be causally related to the development of vascular disease. For example, the wall of the aortic athe...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1997.tb52014.x
更新日期:1997-04-15 00:00:00
abstract::Evidence from experimental animal studies show that sex hormones influence the glucocorticoid response to a variety of inflammatory and noninflammatory stimuli. In this study we assessed gender differences in the response of ACTH and cortisol in normal young male and female humans following intravenous infusion of hum...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2002.tb04203.x
更新日期:2002-06-01 00:00:00
abstract::A linear stability analysis is presented for variable-viscosity miscible fluids in an unstable configuration; that is, a heavier fluid placed above a lighter one in a vertically oriented capillary tube. The initial interface thickness is treated as a parameter to the problem. The analysis is based on the three-dimensi...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1324.032
更新日期:2004-11-01 00:00:00
abstract::The availability of computer-controlled artificial hearts, kidneys, and lungs, as well as the possibility of implanting human embryos in ex vivo uterus models or an artificial endometrium, presents new perspectives for creating an artificial uterus. Survival rates have also improved, with fetuses surviving from as ear...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2011.05999.x
更新日期:2011-03-01 00:00:00
abstract::Murine schistosomiasis mansoni is a parasitic disease in which flukes living in the portal vein of the host produce ova that deposit in the liver and intestines. In these organs, ova release antigens that induce chronic, focal granulomatous inflammation. IFN-gamma is an inflammatory cytokine important in macrophage ac...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1998.tb09592.x
更新日期:1998-05-01 00:00:00
abstract::The anesthetic effect of certain steroids in vertebrate systems is well documented, but it is not known if these compounds can cause anesthesia in simpler organisms. To answer this question, ether, short-chain alkanols, and pregnanolone were tested for their ability to induce anesthesia in 20 aquatic species from 7 ph...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1991.tb33891.x
更新日期:1991-01-01 00:00:00
abstract::Pain is a subjective symptom whose prevalence can be grossly underestimated. The high proportion of adults with thalassemia who experience chronic pain is evident from recent surveys. However, pain has not received enough attention in the overall management of thalassemia. The association of pain with the type and tre...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.13061
更新日期:2016-03-01 00:00:00
abstract::Thus, it can be shown that highly theoretical experiments carried out to evaluate the electrochemistry of thrombosis can also be shown to have significance in the generation of new products, which relates the scientific findings to successful modern prosthesis and medically useful devices. ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1983.tb35212.x
更新日期:1983-01-01 00:00:00
abstract::Type 1 diabetes mellitus (T1DM) is an autoimmune disease in which the beta cells in the pancreas are destroyed by the body's own immune system. IL12 plays a role in pathological situations, such as septic shock, tissue damage during inflammation, and organ-specific autoimmune diseases. In NOD mice, administration of I...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1288.057
更新日期:2003-11-01 00:00:00
abstract::Cardiac muscle relies highly on aerobic metabolism. Heart muscle has a high oxygen uptake at resting conditions, which increases many fold during exhaustive physical exercise. Such a high rate of oxidative metabolism is often associated with enhanced production of reactive oxygen metabolites. A single bout of strenuou...
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.tb09234.x
更新日期:1999-06-30 00:00:00
abstract::Ankylosing spondylitis (AS) is a chronic inflammatory condition associated with HLA B27. But the association is not absolute. Hence association with other HLA class I antigens and class II alleles was studied in a southern Indian population. Sixty-five patients with primary AS were typed serologically for HLA class I ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2002.tb03013.x
更新日期:2002-04-01 00:00:00
abstract::Nitric oxide (NO) is an important signaling molecule that is generated through the catalytic activity of nitric oxide synthase (NOS). In the brain, NO mediates neuronal survival, synaptic plasticity, vascular smooth muscle relaxation, and endothelial cell permeability. Previous studies demonstrated aberrant expression...
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.tb06351.x
更新日期:2000-04-01 00:00:00
abstract::Hamster sperm DNA is packaged so tightly that it is the most highly condensed eukaryotic DNA known. Nevertheless, the sperm genome is also organized in a very specific fashion by two nuclear structures, the nuclear matrix and the nuclear annulus. The nuclear matrix organizes sperm DNA into loop domains approximately 4...
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.tb27309.x
更新日期:1991-01-01 00:00:00
abstract::Sexual dimorphism is a well-documented phenomenon that is observed at all levels of the animal kingdom. Historically, sex hormones (testosterone and estrogen) have been implicated as key players in a wide array of pathologies displaying sexual dimorphism in their etiology and progression. While these hormones clearly ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.12425
更新日期:2014-05-01 00:00:00
abstract::A sensitive, accurate, and simple method, called shifted termination assay (STA), was developed for detection of genetic mutations. The STA technology can be used to detect genetic mutations in polymerase chain reaction (PCR)-amplified samples of tissue, and plasma and serum that include circulating DNA containing poi...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1318.040
更新日期:2004-06-01 00:00:00
abstract::Entomopathogenic fungi are promising alternatives to chemical acaricides in controlling tick populations; however, biological formulations are required to improve conidial performance of these pathogens in the field. This study evaluated the effect of in vitro treatment of Rhipicephalus sanguineus with conidial formul...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1428.030
更新日期:2008-12-01 00:00:00
abstract::3-Nitropropionic acid (3-NPA) is a model mitochondrial inhibitor that causes selective neurodegeneration in brain. 3-NPA-induced neurodegeneration occurs via a secondary neurotoxicity, caused initially by ATP depletion and redox changes in the cell. It is known that the hippocampal degeneration caused by mitochondrial...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1344.014
更新日期:2005-08-01 00:00:00
abstract::We have successfully expressed the active tyrosinase of Streptomyces antibioticus in Escherichia coli under the control of the trp promoter by fusing the sequence to the ORF438 gene. Because our attempt to connect the polycistronic gene of ORF438 and tyrosinase directly to the trp promoter of E. coli resulted in the e...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1994.tb47374.x
更新日期:1994-05-02 00:00:00
abstract::Recent studies demonstrate major effects of adrenal medullary and catecholaminergic pathways on a wide variety of normal physiologic and regulatory events. Alterations in these pathways, involving changes in catecholamines or in proteins and peptides costored and coreleased with catecholamines, may lead to profound ch...
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.tb04514.x
更新日期:2002-10-01 00:00:00
abstract::We have presented a perspective of progress in three areas of simulations of complex molecules: the development of force fields for molecular simulation; the application of computer graphics, molecular mechanics and molecular dynamics in simulations of DNA and DNA-drug complexes and the application of computer graphic...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1986.tb20954.x
更新日期:1986-01-01 00:00:00
abstract::Risk factors for esophageal cancer include genetic factors (such as tylosis) and infectious agents. A variety of organisms have been implicated in esophageal carcinogenesis, either directly or indirectly. In this review, we explore the normal esophageal flora and how it may be controlled, and also the variety of organ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.13858
更新日期:2018-12-01 00:00:00
abstract::Glycosylation of alpha-fetoprotein (AFP) by human primary hepatocellular carcinoma (PHC) is abnormal. Concanavalin A (Con A)-affinity molecular variant patterns of serum AFP from patients with PHC are different from those of cord-serum AFP. Different patients with PHC exhibit different Con-A-affinity AFP molecular var...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1983.tb32850.x
更新日期:1983-01-01 00:00:00
abstract::Every day billions of cells die in our bodies to eliminate those that are harmful, useless, or senescent. The process can be divided into two steps: cell dying and cell clearance. In the first step, death machinery is activated in the cells and quickly kills them. During the second step, dead cells are engulfed by pha...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2010.05749.x
更新日期:2010-10-01 00:00:00
abstract::Preventable chronic diseases are the leading cause of death in the majority of countries throughout the world, and this trend will continue for the foreseeable future. The potential to offset the social, economic, and personal burdens associated with such conditions depends on our ability to influence people's thought...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.13868
更新日期:2018-09-01 00:00:00
abstract::Four weeks immobilization of the right leg of aged rats (26 months old) caused a marked 31% and 27% reduction of muscle mass of the plantaris and soleus muscles, respectively. In animals treated with 0.6 mg/kg body weight of growth hormone (GH), the reduction of weight of the above muscles was only 14.7 and 16.1%, res...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1996.tb39082.x
更新日期:1996-06-15 00:00:00
abstract::Type 2 diabetes and obesity are major global public health problems, with migrant populations in high-income countries being particularly affected. Type 2 diabetes and obesity are also major threats in low- and middle-income countries, from which most migrant populations originate. Transitioning of societies and the r...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.13204
更新日期:2017-03-01 00:00:00
abstract::The first studies of the pharmacological induction of fetal hemoglobin were conducted in patients with sickle cell disease and thalassemia. Although hydroxyurea was approved by the FDA for the treatment of sickle cell disease in 1996, no similar pharmacological agent(s) has been approved for the treatment of patients ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1196/annals.1345.029
更新日期:2005-01-01 00:00:00
abstract::Megadose haploidentical transplants, mismatched at three HLA loci, engraft rapidly and durably without induction of graft-versus-host disease (GVHD). In vitro studies suggest that veto cells, contained in the population of hematopoietic progenitors, facilitate this favorable outcome. Cytotoxic T cells, not reactive ag...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:
更新日期:2001-06-01 00:00:00