Abstract：
:Fluorodeoxyuridylate (FdUMP) and thymidylate synthase (TS) are one of the better understood systems of drug-target interaction in cancer chemotherapy. Isolation and characterization of TS (initially from Lactobacillus casei and later from a variety of other sources), cloning and sequencing of the gene, determination of the 3-D structure of the enzyme by X-ray diffraction, and elucidation of the structure of both the catalytic intermediate and the enzyme-inhibitor complex have revealed critical parameters of the target at the molecular level. Potentiation of FdUMP binding by 5,10-methylenetetrahydrofolate (CH2-FH4), discovered at the enzymatic level, has been exploited to increase the clinical effectiveness of fluoropyrimidines. CH2-FH4 can be generated from folate, 5-methyltetrahydrofolate, or 5-formyltetrahydrofolate (citrovorum factor, CF); the latter is the compound of choice for therapeutic regimens. Transformation of CF to CH2-FH4 can occur via two pathways: (a) CF----5,10-methyltetrahydrofolate----CH2-FH4; or (b) CF----tetrahydrofolate----CH2-FH4. The relative importance of these pathways in various cells is not yet clear. The role of CH2-FH4 in FdUMP toxicity, and its central position in folate coenzyme-dependent C1 metabolism, emphasize the need for development of methods to quantitate intracellular levels of this compound.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Huennekens FM,Montejano YD,Vitols KSdoi
10.1007/978-1-4684-5607-3_1subject
Has Abstractpub_date
1988-01-01 00:00:00pages
1-11eissn
0065-2598issn
2214-8019journal_volume
244pub_type
杂志文章,评审abstract：:Earlier we demonstrated that meta-iodobenzylguanidine (MIBG), a specific inhibitor of arginine mono-ADP-ribosylation blocks proliferation and differentiation of chick skeletal myogenic cells in culture (Exp. Cell Res., 1992, 201:33-42). Membrane fractions from 4-day, myotube cultures of embryonic chick muscle cells we...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4419-8632-0_40
更新日期：1997-01-01 00:00:00
abstract：:Antibiotics have long been suspected of contributing to male infertility; however, there are remarkably limited data to support this premise. A major challenge for evaluating antibiotic effects is that the diseases they treat often have negative impacts on male reproduction, so treatment with the antimicrobial can imp...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-69535-8_10
更新日期：2017-01-01 00:00:00
abstract：:Do seizures change the brain? Studies on the kindling model--a widely used animal model of epilepsy--suggest that they do. Dr. Racine, one of the pioneers in the kindling field, describes the basic phenomena of kindling, and discusses the possible roles of cell growth and cell death in this model. ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4615-1335-3_16
更新日期：2002-01-01 00:00:00
abstract：:A comprehensive synthetic approach was employed to identify the continuous regions of T-cell recognition on the alpha-chain of Torpedo californica acetylcholine receptor (AChR). Eighteen synthetic consecutive overlapping peptides, of uniform size and overlaps, that spanned the entire extracellular part (residues 1-210...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5442-0_8
更新日期：1987-01-01 00:00:00
abstract：:Lead (Pb2+) is a developmental neurotoxicant that causes lifelong cognitive dysfunctions. In particular, Pb2+-induced frontoexecutive dysfunctions emerge later in life when the cortex is fully myelinated, thereby permitting the ability to assess the extent to which Pb2+ has developmentally impacted higher order cognit...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-13-8023-5_70
更新日期：2019-01-01 00:00:00
abstract：:The complexity of modern biological database management systems indicates the need of integrated metadata repositories for harmonized and high-quality assured data processing. Such systems should allow for the derivation of specific producer-oriented indicators monitoring the quality of the final datasets and statisti...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4419-5913-3_11
更新日期：2010-01-01 00:00:00
abstract：:Signal interneurones have a crucial part to play in the control of motoneurones. Newer methods are being added to the ways in which they can be studied, both in animal and human experiments. This chapter provides some background to a re-evaluation of the role of interneurones in motor control. ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:The heat shock response (HSR) is characterized by the induction of molecular chaperones following a sudden increase in temperature. In eukaryotes, the HSR comprises the set of genes controlled by the transcription factor Hsf1. The HSR is induced by defects in co-translational protein folding, ribosome biogenesis, orga...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-40204-4_3
更新日期：2020-01-01 00:00:00
abstract：:This book highlights contributions from leaders in the field of sigma receptor research. Sigma receptors represent a promising, novel target for the treatment of neurodegenerative diseases, retinal degenerations, pain and substance abuse. Information is presented about tracers for molecular imaging these receptors, th...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-50174-1_1
更新日期：2017-01-01 00:00:00
abstract：:Opioid analgesics remain the most effective and widely used analgesics for the management of moderate to severe pain, including cancer pain and chronic non-cancer pain. However, the efficacy of long-term opioid analgesics is attenuated by tolerance and/or hyperalgesia after long-term use, preventing adequate pain reli...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-13-1756-9_11
更新日期：2018-01-01 00:00:00
abstract：:The formation of the comutagenic tryptophan derivate norharman in heat-processed food is a well known phenomenon. As a first step to investigate the possible formation of norharman during food storage particularly in regard to fortified food we developed a model system and studied the non-enzymatic formation of the co...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-4709-9_89
更新日期：1999-01-01 00:00:00
abstract：:The cerebellum, and the olivo-cerebellar system in particular, may be the central mechanism of a neural clock that provides a rhythmic neural signal used to time motor and cognitive processes. Several independent lines of evidence support this hypothesis. First, the resting membrane potential of neurons in the inferio...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4939-1782-2_9
更新日期：2014-01-01 00:00:00
abstract：:Heart disease is widely believed to develop from two pathological processes. Circulating lipoproteins containing the nondegradable lipid, cholesterol, accumulate within the arterial wall and perhaps are oxidized to more toxic lipids. Both lipid accumulation and vascular reaction to the lipids lead to the gradual thick...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-0650-1_2
更新日期：2011-01-01 00:00:00
abstract：:In this paper we report the effect of sulfatides on rate constants of Factor XII activation by kallikrein and its isolated light chain. In free solution kallikrein and the light chain were equally effective in activating Factor XII and both enzymes had their pH optimum at pH 7.0 (k1 = 1.6 X 10(3) M-1 s-1). Sulfatides ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-0154-8_3
更新日期：1986-01-01 00:00:00
abstract：:The coronavirus peplomer protein S is responsible for attachment and fusion during viral entry as well as for the induction of cell to cell fusion. While several regions within S have been shown to influence the ability to induce fusion, the region of the protein actually responsible for fusion, the fusion peptide, ha...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-5331-1_3
更新日期：1998-01-01 00:00:00
abstract：:Total dietary fiber (TDF) values for cereal grains, fruits, vegetables, processed foods, and purified or semi-purified dietary fiber products were determined by a new method using 8M urea and enzymes (urea enzymatic dialysis, UED, method). The results are compared with the official AOAC procedure. Soluble and insolubl...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5784-1_28
更新日期：1990-01-01 00:00:00
abstract：:Flaxseed has been used as an edible grain in different parts of the world since ancient times. However, use of flaxseed oil has been limited due to its high content of polyunsaturated fatty acids. Nonetheless, alpha-linolenic acid, dietary fiber and lignans of flaxseed have regained attention. New varieties of flaxsee...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4899-1925-0_26
更新日期：1998-01-01 00:00:00
abstract：:Foxp subfamily genes were recently recognized to be members of the Fox gene family. Foxp subfamily members contain a zinc finger domain and a leucine zipper motif in addition to a forkhead domain and their DNA binding capacities and transcriptional activities are regulated by homo- and heterodimerization via a zinc fi...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4419-1599-3_9
更新日期：2009-01-01 00:00:00
abstract：:TRPC channels have been suggested as potential candidates mediating store-operated Ca2+ entry (SOCE) in cardiomyocytes. There is increasing evidence that the TRPC isoforms TRPC1 and TRPC4 might fulfill the function as SOCs, in concert with or in parallel to the key players of SOCE, Orai1, and STIM1. Several other isof...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-57732-6_25
更新日期：2017-01-01 00:00:00
abstract：:The clinical success of gene replacement therapies in recent years has served as a proof of concept for the treatment of inherited retinal degenerations using adeno-associated virus (AAV) as viral vector. However, inherited retinal degenerative diseases showcase a broad genetic and mechanistic heterogeneity, challengi...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-75402-4_10
更新日期：2018-01-01 00:00:00
abstract：:Pericytes (PCs) are specialized cells located abluminal of endothelial cells (ECs) on capillaries, embedded within the same basement membrane. They are essential regulators of vascular development, remodeling, and blood-retina-barrier (BRB) tightness and are therefore important components to maintain tissue homeostasi...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-11093-2_1
更新日期：2019-01-01 00:00:00
abstract：:12(S)-HETE stimulates gene and cell surface expression of the integrin GPIIb/IIIa in carcinoma cells. The cells have high affinity binding sites for 12(S)-HETE. Analyses of the subcellular distribution and size of these sites showed that cytosol was the predominant location and that the apparent molecular weight was c...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-5325-0_41
更新日期：1997-01-01 00:00:00
abstract：:Speech intelligibility achieved with cochlear implants (CIs) shows large variability across different users. One reason that can explain this variability is the CI user's individual electrode nerve interface which can impact the spectral resolution they can achieve. Spectral resolution has been reported to be related ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-25474-6_11
更新日期：2016-01-01 00:00:00
abstract：:Wegener's granulomatosis (WG) is characterized histologically by necrotizing granulomatous angitis that most commonly involves the upper, lower respiratory tract and kidneys, but may affect any organ system. Otolaryngological manifestations are frequent and diverse but subglottic stenosis and tracheal stenosis are les...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-94-007-4546-9_28
更新日期：2013-01-01 00:00:00
abstract：:It is well known that patients who undergo surgical operations have a high risk of infection and sepsis. One explanation for this high risk may be a depression of neutrophil functions at the postoperative period. In the present study, the effects of surgical stresses on neutrophil functions were studied in ten patient...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-9543-4_34
更新日期：1989-01-01 00:00:00
abstract：:In this communication I have attempted to present an overview of some contributions to the understanding of the oviduct-egg interaction in amphibians. According to data from other authors, the vitelline envelope of the newly ovulated egg constitutes a barrier for the passage of spermatozoa. Our results demonstrated th...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4613-2255-9_11
更新日期：1986-01-01 00:00:00
abstract：:Serpulina pilosicoli is a newly identified pathogenic spirochete that establishes persistent colonic infections in human beings and animals. Macrophages are one of the key defenses against invasion of mucosal surfaces by bacterial pathogens. Macrophages engulf many bacteria by conventional phagocytosis; however recent...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-4143-1_21
更新日期：1999-01-01 00:00:00
abstract：:Despite the lack of adaptive immunity based on gene rearrangement such as that in higher vertebrates, flies are able to defend themselves from a wide array of pathogens using multiple innate immune responses whose molecular mechanisms are strikingly similar to those of the innate immune responses of other multicellula...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4419-8059-5_11
更新日期：2010-01-01 00:00:00
abstract：:In order to better understand the mechanisms of cerebrovascular development and differentiation, the leptomeningeal microcirculation was analyzed using in vivo fluorescence video-microscopy in neonatal (1, 9, and 12 day old) Sprague-Dawley rats. The pattern of flow distribution was reconstructed, the location of radia...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-4863-8_41
更新日期：1998-01-01 00:00:00
abstract：:Biobanking of human biological specimens has evolved from the simple private collection of often poorly annotated residual clinical specimens, to well annotated and organized collections setup by commercial and not-for-profit organizations. The activities of biobanks is now the focus of international and government ag...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-20579-3_2
更新日期：2015-01-01 00:00:00
