实验仪器使用技术

Transient transfectron of mammalian cell lines with recombinant DNA has become a common tool for studying functional and structural properties of a wide variety of proteins (1–5). Transient transfections are especially practical for the expression of recombinant multisubunit c ...

Translation of the explosion in knowledge of acute ischemic stroke into satisfactory treatment regimens has yet to happen. At present tPA, intra-arterial prourokinase and low-molecular-weight heparin form the vanguard for therapeutic intervention, yet these treatments have a l ...

To develop novel neuroprotective or neurorestorative agents for clinical application, the appropriate selection and characterization of preclinical focal stroke models is required to provide confidence in predicting therapeutic efficacy. Compelling evidence for nov ...

The recent completion of the Human Genome Project provides the potential to advance our knowledge of pathogenesis and identify the gene(s) associated with particular diseases. However, using human DNA to correlate individual genomic variations with particular disorders such as st ...

Stem cell lines have been and are being developed to treat damage in the central nervous system after stroke. Stem cells are able to migrate to areas of damage and to differentiate into neurons and glia. Grafts of murine stem cells have been shown to promote recovery from behavioral dysfunction after s ...

Almost all injurious stimuli, when applied below the threshold of producing injury, activate endogenous protective mechanisms that significantly decrease the degree of injury after subsequent injurious stimuli. For example, a short duration of ischemia (i.e., ischemic precon ...

Manipulation of the rodent genome by deliberately inserting (transgenic) or removing (knockout) a gene of interest or indeed by selectively breeding animals with a spontaneous or random mutation producing a trait of interest has been developed over several years. Mouse “fanciers” have ...

3-Nitropropionic acid (3-NPA) is a potent mitochondrial inhibitor that can be administered systemically to create a progressive and localized striatal neurodegeneration mimicking many of the pathological features of Huntington’s disease and other forms of metabolic compro ...

Considerable evidence suggests genetic factors are important in the pathogenesis of multifactorial stroke. However, studies identifying the underlying genes have been largely disappointing. This chapter reviews the different approaches and their relative merits. It is lik ...

Stroke is a common entity. It is the third leading cause of death and the leading cause of adult disability in the developed world. More than 110 heritable disorders, more than 175 genetic loci, and more than 2050 unique mutations predisposing to stroke are known. Although ischemic stroke can result f ...

Stroke is a clinically defined neurological syndrome characterized by rapidly progressing symptoms and signs of focal loss of cerebral function. The initiation, propagation, and maturation of ischemic stroke are associated with de novo expression of multiple genes in endogenous ...

Many researchers have sought to study changes in gene expression in preclinical models of stroke. These range from in vitro models of ischemia, neuronal death, and regeneration to in vivo animal models aimed at replicating pathologies and regenerative processes typical of the clinical s ...

High-throughput biotechnology has enabled genome-wide investigation of gene expression and has the potential to identify genes that have a role to play in focal cerebral ischemia, as well as many other interventions. The advent of this technology has also led to the generation of large amoun ...

The pro-inflammatory cytokine interleukin-1 (IL-1) has been proposed as a mediator of the acute neurodegenerative changes that occur following stroke. This is based largely on experimental studies in rodents, in particular the marked reduction in ischemic cell death seen when IL-1 rec ...

Prior to the cloning of G protein-coupled receptors (GPCRs), structure-function analysis of the ligand-binding properties of these receptors had for the most part been limited to study of the structure-activity relationships (SAR) of agonists and antagonists at the individual rece ...

Heterologous expression in mammalian cell lines provides an invaluable tool with which to explore determinants of G protein-coupled receptor (GPCR) function. The use of stably transfected cell lines enables a receptor to be studied in the absence of other related receptor subtypes. With ...

This review provides an overview of animal models of acquisition of drug reinforcement by discussing research findings from studies that used drugs such as cocaine, methamphetamine (METH), phencyclidine, and nicotine, as well as several routes of drug self-administration (SA). Theo ...

The human disease caused by niacin (vitamin B3) deficiency is pellagra, a disease that at one time filled insane asylums all over the world before the function of niacin was discovered. The recognition of pellagra as an endemic disease in the US dates from Searcy’s report in 1907 (Strandell et al., 1989) d ...

Hepatic encephalopathy (HE) is a neuropsychiatric disorder that results from impaired liver function. In humans, hepatic encephalopathy occurs in two major forms: (1) Associated with acute or fulminant hepatic failure, a clinical syndrome resulting from severe inflammatory and ...

Seizure activity can be produced in experimental animals by a variety of methods. Other chapters in this volume detail these techniques, which include drug and chemical means, electroshock, and kindling models. Each of these methods of seizure induction has advantages and disadvantag ...