Abstract：
:We have isolated a series of five proteins which appear to possess characteristic individual capacities for synthesizing dextrans and binding dextrans. Our suggestion that these proteins comprise an isozyme-like distribution of lectin and enzyme activities is, of course, very speculative and remains to be rigourously confirmed. However, the very identification of these several dextran binding proteins provides a biochemical basis to explain numerous observations suggesting that more than one mechanism for dextran binding is possessed by S. mutans (for instance: 24-27), especially the observations with mutants (24). These proteins probably are the molecular determinants of host infection by S. mutans and may prove to be potent immunogens for use in a vaccine. The presence of a dextran-binding lectin in S. mutans implicates this bacterial lectin in the earliest stage of infection: Attachment to host tissues. The multiplicity of proteins possessing characteristic dextran-synthesizing and dextran-binding capacities indicates the complexity of the adherence mechanisms evolved in S. mutans. Experiments with other bacteria (10-12, 28) suggest that bacterial lectins, in concert with host tissue carbohydrates, may be the molecular mediators of host recognition and subsequent initial attachment of bacterial cells to host tissues in non-pathogenic as well as pathogenic bacteria.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
McCabe MM,Hamelik RMdoi
10.1007/978-1-4684-3369-2_84subject
Has Abstractpub_date
1978-01-01 00:00:00pages
749-59eissn
0065-2598issn
2214-8019journal_volume
107pub_type
杂志文章abstract：:The continuous part of a hybrid (pulse-modulated) model of testosterone (Te) feedback regulation in the human male is extended with infinite-dimensional and nonlinear blocks, to obtain the dynamics that better agree with the hormone concentration profiles observed in clinical data. A linear least-squares based optimiz...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-10984-8_2
更新日期：2015-01-01 00:00:00
abstract：:During the development of an amplification refractory mutation system (ARMS) assay for the detection of the Delta F508 mutation and corresponding normal locus in cystic fibrosis we discovered a family in which a further variant of the sequence exists. PCR amplification and direct sequencing of a region of exon 10 of t...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5934-0_48
更新日期：1991-01-01 00:00:00
abstract：:Freeze-drying is a popular method to prepare pharmaceutical formulations containing structurally complex active ingredients and drug delivery system carriers. The solidification performed at lower temperature significantly improves storage stability of proteins, peptides, antibiotics, vaccines, and liposomes, which ar...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-13-1244-1_20
更新日期：2018-01-01 00:00:00
abstract：:Hepatorenal tyrosinaemia (HT1) is a serious condition that used to be fatal before the advent of nitisinone (NTBC, Orfadine®) as a therapeutic option. We have recently shown that selective screening is inadequate as initial symptoms are often uncharacteristic which leads to a considerable delay in diagnosis and treatm...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-55780-9_11
更新日期：2017-01-01 00:00:00
abstract：:Evidence is accumulating that old individuals are more susceptible to infection with organisms to which they were previously immune, indicating that there might be a limit to the persistence of immune memory. The prevailing concept is that defects in memory T-cell populations result from inexorable end-stage different...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4419-6451-9_15
更新日期：2010-01-01 00:00:00
abstract：:Using bioconjugated dye-doped silica nanoparticles (NPs), we have developed a bioassay for the accurate determination of a single bacterial cell within 20 minutes without any signal amplification or sample enrichment. The antibody-conjugated NPs can specifically and quantitatively detect bacteria, such as Escherichia ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-76713-0_10
更新日期：2007-01-01 00:00:00
abstract：:Oxygen plays a key role in tumor therapy and may be related to tumor development: e.g., angiogenesis and metastasis. Using noninvasive techniques to accurately measure tumor oxygenation could assist in developing novel therapies. Here, we have used the FREDOM (Fluorocarbon Relaxometry using Echo planar imaging for Dyn...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-0075-9_22
更新日期：2003-01-01 00:00:00
abstract：:It is now well established that carotid bodies are sensory organs for monitoring arterial blood oxygen levels and trigger reflexes that are critical for maintaining homeostasis during hypoxemia. This review article provides a brief account of the early studies leading to the discovery of the carotid body as a sensory ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-55231-6_1
更新日期：2017-01-01 00:00:00
abstract：:Alternative splicing is a powerful means of controlling gene expression and increasing protein diversity. Most genes express a limited number of mRNA isoforms, but there are several examples of genes that use alternative splicing to generate hundreds, thousands and even tens of thousands of isoforms. Collectively such...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-77374-2_4
更新日期：2007-01-01 00:00:00
abstract：:Given the interest of many people and families directly or indirectly affected by hereditary tyrosinemia (HT1), I have tried to give my view on the history of the disease from 1965 to 2015 (Fig. 1.1). ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-55780-9_1
更新日期：2017-01-01 00:00:00
abstract：:Substrate/inhibitor specificities of nucleoside analogues with modified sugar moieties toward highly purified deoxycytidine kinase (dCK) and thymidine kinases (TK1 and TK2) from human leukemic spleen have been examined. Substrate activities of cytosine nucleosides vs dCK were as follows: 2'-fluoro-dC > 2'-O-methyl-C >...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-5381-6_120
更新日期：1998-01-01 00:00:00
abstract：:The quantification of tissue oxygen by frequency or time domain methods has been discussed in a number of prior publications where the meaning of the tissue hemoglobin oxygen saturation was unclear and where the CW instruments were unsuitable for proper quantitative measurements [1, 2]. The development of the IQ Phase...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-0075-9_2
更新日期：2003-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-5331-1_83
更新日期：1998-01-01 00:00:00
abstract：:Rare diseases, including those of genetic origin, are defined by the European Union as life-threatening or chronically debilitating diseases which are of such low prevalence (less than 5 per 10,000). The specificities of rare diseases - limited number of patients and scarcity of relevant knowledge and expertise - sing...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-90-481-9485-8_25
更新日期：2010-01-01 00:00:00
abstract：:In attempts to correlate metastatic potential with specific properties of tumor cells, homogeneous subpopulations, which are endowed with low or high metastatic potential, have been selected from Lewis lung carcinoma (3LL). In particular, since cell surface constituents are possibly involved in the metastatic process,...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4899-5037-6_16
更新日期：1988-01-01 00:00:00
abstract：:To clarify the mechanisms of power enhancement during counter-movement exercise, in vivo muscle fibre behavior during plantar flexion exercise was estimated by real time ultrasonography. Six healthy male subjects were requested to perform ankle plantar flexion exercise with counter-movement (CM, plantar flexion preced...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-0713-0_57
更新日期：2002-01-01 00:00:00
abstract：:The Langmuir trough approach to the study of the physical properties of an in vitro system representing the natural tear lipid-aqueous interface gives useful information on the effect produced by changes of composition of both phases. We found that variations of the composition of the lipid mixture affect more strongl...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-0717-8_58
更新日期：2002-01-01 00:00:00
abstract：:It is clear that the combination of 31P NMR studies of muscle and of other organs with biochemical and physiological measurements is an extremely powerful method for studying cellular energetics. We have presented examples of our on-going experiments. Well defined and stable in vitro preparations of mammalian fast-twi...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-7790-0_27
更新日期：1983-01-01 00:00:00
abstract：:The activation of 17beta-estradiol (E2) to 2-hydroxyestradiol (2-HO-E2), the more genotoxic 4-hydroxyestradiol (4-HO-E2), and the oxidation to the respective quinones constitutes a risk factor in hormonal carcinogenesis. 2-HO-E2 is formed by cytochrome P450 CYP1A1, and 4-HO-E2 is formed by CYP1B1. Both are detoxified ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-0-387-69080-3_65
更新日期：2008-01-01 00:00:00
abstract：:The phosphatidylinositol-3-kinase (PI3K) pathway has an essential role in signal transduction, where it is required for a number of different cellular processes including proliferation, differentiation, development, migration and growth. In the immune system, PI3K regulates inflammation by controlling the activation a...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-15774-0_9
更新日期：2015-01-01 00:00:00
abstract：:The views presented in this article are the fruit of reflections and discussion with my colleagues at Valladolid and with the members of the Sleep Apnea Hypopnea Syndrome Group of the CIBERES (Spain). We have assembled the article in three sections. In the first one we provide a mechanistic description of obstructive ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-94-007-4584-1_45
更新日期：2012-01-01 00:00:00
abstract：:DNA methyltransferases (MTases) uniquely combine the ability to recognize and covalently modify specific target sequences in DNA using the ubiquitous cofactor S-adenosyl-L-methionine (AdoMet). Although DNA methylation plays important roles in biological signaling, the transferred methyl group is a poor reporter and is...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-43624-1_19
更新日期：2016-01-01 00:00:00
abstract：:Myocardial ischemia and reperfusion cause injury to the heart in myocardial ischemic disease. Both processes increase autophagy. In this chapter, we will provide an overview of the autophagic mechanism caused by myocardial ischemia/reperfusion injury and the role of autophagy in myocardial ischemia/reperfusion injury....
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-15-4272-5_15
更新日期：2020-01-01 00:00:00
abstract：:The effects of exposure to continuous and intermittent anthropogenic sounds on temporary hearing threshold shifts (TTSs) in a harbor porpoise were investigated by testing hearing before and after exposure to 1- to 2-kHz downsweeps of 1 s, without harmonics, presented as paired-intermittent and continuous-exposure comb...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4939-2981-8_63
更新日期：2016-01-01 00:00:00
abstract：:Although controversial, animal and tissue studies indicate that carotid bodies are sensitive to changes in glucose as well as in oxygen, thereby functioning as metabolic sensors. This study was designed to test the hypothesis that carotid bodies in humans participate in the counter-regulatory response to insulin-induc...
journal_title：Advances in experimental medicine and biology
pub_type： 临床试验,杂志文章
doi：10.1007/978-90-481-2259-2_31
更新日期：2009-01-01 00:00:00
abstract：:Patient-derived human-induced pluripotent stem cells (iPSCs) have been critical in advancing our understanding of the underlying mechanisms of numerous retinal disorders. Many of these retinal disorders have no effective treatment and result in severe visual impairment and even blindness. Among the retinal degenerativ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-27378-1_91
更新日期：2019-01-01 00:00:00
abstract：:In the previous chapter we were able to automatically process text by recognizing a limited set of entities. This chapter will introduce the world of semantics, and present step-by-step examples to retrieve and enhance text and data processing by using semantics. The goal is to equip the reader with the basic set of s...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-030-13845-5_5
更新日期：2019-01-01 00:00:00
abstract：:Before any clinical signs of diabetic retinopathy can be detected, two major histopathological lesions occur in the walls of retinal capillaries: basement membrane thickening; and loss of intramural pericytes (mural cells). A decrease in the number of pericyte to endothelial cell junctions also occurs under diabetic c...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-5616-5_45
更新日期：1988-01-01 00:00:00
abstract：:Thermal clearance curves following termination of ultrasound-induced hyperthermia in human mammary carcinomas implanted into the flanks of nude rats were studied. They were found to be monoexponential in form, both with and without blood flow. From the difference between the inverse time constants with and without flo...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-7433-6_45
更新日期：1987-01-01 00:00:00
abstract：:Juvenile bullfrogs previously identified as highly sensitive to acute nicotine, demonstrated normal neuroventilation following 3 wk of chronic nicotine exposure. Acute bath application of 1 microM galantamine, an acetylcholinesterase inhibitor, significantly attenuated both bullfrog normocapnic neuroventilation and re...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4419-5692-7_21
更新日期：2010-01-01 00:00:00
