Abstract：
:Calcium absorption in the large intestine was studied under physiological conditions in the rat. When 45Ca was administered directly into the caecum, the isotope was significantly absorbed. This absorption was modulated by dietary Ca and Pi as well as by the 1,25(OH) D3 status. On the other hand, calcium coming from the food, either as 45Ca or as 40Ca, was not absorbed to a significant amount. When the absorption of 45Ca from the caecal content was assessed in duodenal loops, less 45Ca was absorbed when the isotope was administered orally than when it was added to the caecal content. Thus, the fact that oral Ca is not absorbed in the colon despite the efficient Ca transport system of this part of the intestine may be due to the transformation in the digestive tract of Ca from an absorbable into a non-absorbable form.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Ammann P,Rizzoli R,Fleisch Hdoi
10.1007/978-1-4684-5206-8_29subject
Has Abstractpub_date
1986-01-01 00:00:00pages
235-8eissn
0065-2598issn
2214-8019journal_volume
208pub_type
杂志文章abstract：:Anhydrotrypsin, a derivative of bovine trypsin, immobilized on Sepharose tightly adsorbs various peptides containing L-arginine at the carboxyl termini, such as bradykinin and tuftsin. These peptides correspond to the specific products of the action of trypsin-like enzymes. Native trypsin immobilized on Sepharose does...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-0926-1_3
更新日期：1979-01-01 00:00:00
abstract：:Most of evolutionary theory has abstracted away from how information is coded in the genome and how this information is transformed into traits on which selection takes place. While in the earliest stages of biological evolution, in the RNA world, the mapping from the genotype into function was largely predefined by t...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-3567-9_10
更新日期：2012-01-01 00:00:00
abstract：:Marine invertebrates at the base of oceanic trophic webs play important ecological and economical roles supporting worldwide fisheries worth millions. There is an increasing concern about the effects of anthropogenic noise on marine fauna but little is known about its effects on invertebrates. Here the current peer-re...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4939-2981-8_3
更新日期：2016-01-01 00:00:00
abstract：:Calcium (Ca2+) buffering is part of an integrative crosstalk between different mechanisms and elements involved in the control of free Ca2+ ions persistence in the cytoplasm and hence, in the Ca2+-dependence of many intracellular processes. Alterations of Ca2+ homeostasis and signaling from systemic to subcellular lev...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-12457-1_7
更新日期：2020-01-01 00:00:00
abstract：:The DJ-1 (also called the DJ-1/PfpI, ThiJ/PfpI, or DJ-1/ThiJ/PfpI) superfamily is a structural and functional diverse group of proteins that are present in most organisms. Many of these proteins remain poorly characterized at the biochemical level, but include some known chaperones, proteases, and various stress respo...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-10-6583-5_2
更新日期：2017-01-01 00:00:00
abstract：:Vascular endothelial cells (ECs) and smooth muscle cells (VSMCs) are constantly exposed to hemodynamic forces in vivo, including flow shear stress and cyclic stretch caused by the blood flow. Numerous researches revealed that during various cardiovascular diseases such as atherosclerosis, hypertension, and vein graft,...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-96445-4_4
更新日期：2018-01-01 00:00:00
abstract：:The myosin-containing A-filaments of vertebrate skeletal muscle contain 294 myosin molecules packed to give overall 3-fold rotational symmetry, as illustrated by the fraying of the filament into 3 sub-filaments ( Maw and Rowe, 1980). Further studies on slightly frayed filaments are consistent with a highly linear arra...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-4703-3_2
更新日期：1984-01-01 00:00:00
abstract：:Consciousness, ranging from the primary, or perceptual, level to high levels that include a sense of self, can be identified in various organisms by a set of hallmarks that include behavioral, neural and phenomenal and/or informational. Behavioral hallmarks include those that indicate high cognitive abilities, such be...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-1704-0_19
更新日期：2012-01-01 00:00:00
abstract：:The tumor microenvironment is composed of cancer cells, noncancer cells (e.g., immune cells, stromal cells, endothelial cells, and adipocytes), and various mediators (e.g., cytokines, chemokines, growth factors, and humoral factors) that work together to support cancer growth, progression, and resistance to therapies....
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-35727-6_7
更新日期：2020-01-01 00:00:00
abstract：:Recently advances in cancer genomics revealed the unexpected high frequencies of epigenetic abnormalities in human acute myeloid leukemia (AML). Accumulating data suggest that these leukemia-associated epigenetic factors play critical roles in both normal hematopoietic stem cells (HSCs) and leukemia stem cells (LSCs)....
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-13-7342-8_8
更新日期：2019-01-01 00:00:00
abstract：:Intraperitoneal treatment with the enzyme inhibitor, pepstatin, of BSVS mice, guinea pigs and Lewis rats which were sensitized with guinea pig spinal cord and pertussis vaccine resulted in complete or partial suppression of paralysis dependent on the species studied and alterations of histological signs of experimenta...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-8914-9_30
更新日期：1979-01-01 00:00:00
abstract：:Diseases can be caused naturally by biological agents such as bacteria, viruses and toxins (natural risk). However, such biological agents can be intentionally disseminated in the environment by a State (military context) or terrorists to cause diseases in a population or livestock, to destabilize a nation by creating...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-72077-7_9
更新日期：2017-01-01 00:00:00
abstract：:While performing their functions, biological macromolecules often form large, dynamically changing macromolecular assemblies. Only a relatively small number of such assemblies have been accessible to the atomic-resolution techniques X-ray crystallography and NMR. Electron microscopy in conjunction with image reconstru...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-02970-2_6
更新日期：2014-01-01 00:00:00
abstract：:The ability to differentiate between well-oxygenated and poorly-oxygenated tumors may play an important role in selecting an optimal therapeutic regime for tumor treatment of the individual patient. We present preliminary results in the development of a dynamic functional MRI method for mapping tissue oxygenation and ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-0075-9_42
更新日期：2003-01-01 00:00:00
abstract：:Even though stroke is the third, not the first, most common cause of disability-adjusted life years in developed countries, it is one of the most expensive to treat. Part of the expense is due to secondary problems in the post-stroke period including: cognition, memory, attention span, pain, sensation loss, psychologi...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-10-4304-8_9
更新日期：2017-01-01 00:00:00
abstract：:It is now well recognized that a main actor in the continuous interaction between the nervous and immune systems is the pineal hormone MLT. T-helper cells bear G-protein coupled MLT cell membrane receptors and, perhaps, MLT nuclear receptors. Activation of MLT receptors enhances the release of T-helper cell type 1 (Th...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/0-306-46814-x_47
更新日期：1999-01-01 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：:Before a messenger RNA (mRNA) is translated into a protein in the cytoplasm, its pre-mRNA precursor is extensively processed through capping, splicing and polyadenylation in the nucleus. Defects in the processing of pre-mRNAs due to mutations in RNA sequences often cause disease. Traditional small molecules or protein...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4939-1221-6_9
更新日期：2014-01-01 00:00:00
abstract：:Cancer development originates in a single mutant cell transformed from a normal cell, including further evolution of pro-tumor cells through additional mutations into malignant cancer tissues. Data from recent studies, however, suggest that most pro-tumor cells do not develop into tumors but remain dormant within or a...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-23629-8_5
更新日期：2019-01-01 00:00:00
abstract：:Fibrin is a major component of atherosclerotic plaques, and there may also be situations in which intravascular fibrin is formed in contact with the endothelium. The studies to be presented describe the distribution of fibrinogen/fibrin I, fibrin II, and fragments D and D-dimer in normal vessels and atherosclerotic pl...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4615-3806-6_33
更新日期：1990-01-01 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：:Programmed cell death occurs in the nervous system both in normal development as well as in pathologic conditions, and is a key issue related to both brain repair and neurodegenerative diseases. Modulation of cell death in the nervous system may involve neurotrophic factors and other peptides, neurotransmitters and ne...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/0-387-30128-3_10
更新日期：2006-01-01 00:00:00
abstract：:The effect of r-TNF on T. musculi is complex. When trypanosomes are incubated in culture with this monokine, TNF exerts a direct anti-trypanosomal effect (Table 3). Similarly, if mice are treated with TNF during the later stages of infection, after the parasitaemia has stabilized, it hastens the elimination of the try...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-5421-6_26
更新日期：1988-01-01 00:00:00
abstract：:The role of naturally occurring autoantibodies (NAbs) in homeostasis and in disease manifestations is poorly understood. In the present chapter, we review how NAbs may interfere with the cytokine network and how NAbs, through formation of complement-activating immune complexes with soluble self-antigens, may promote t...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-3461-0_9
更新日期：2012-01-01 00:00:00
abstract：:[1-14C]-Eicosapentaenoic acid (EPA) was incubated with porcine leukocytes. Three polar metabolites were isolated after RP-HPLC separation in addition to pentaene leukotrienes and mono-hydroxy fatty acids. These compounds display U.V. absorbance with U.V. lambda max at 302 nm with shoulders at 289 and 317 nm which were...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-0937-7_5
更新日期：1988-01-01 00:00:00
abstract：:To assess whether the dipeptide N-epsilon-(gamma-L-glutamyl)-L-lysine (glutamyl-lysine) can serve as a nutritional source of lysine, we compared the growth of mice fed (a) an amino acid diet in which lysine was replaced by six dietary levels of glutamyl-lysine; (b) wheat gluten diets fortified with lysine; (c) a wheat...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4899-2626-5_30
更新日期：1991-01-01 00:00:00
abstract：:The effect of compression on the elementary steps of the cross-bridge cycle was investigated with the sinusoidal analysis technique and ATP hydrolysis rate measurement. The lattice spacing of rabbit psoas muscle fibers was osmotically compressed with a macromolecule, dextran T-500 (0-16%). The effects of MgATP, MgADP,...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-2872-2_52
更新日期：1993-01-01 00:00:00
abstract：:Articular cartilage contains any ectoenzyme activity, NTP-PPH, which is capable of generating PPi from NTP substrates. The PPi generated is from the cleavage of the alpha-beta pyrophosphate bond of NTP and does not result from the effects of NTP catabolites. NTP-PPH activity is expressed on human skin fibroblasts in c...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5104-7_23
更新日期：1986-01-01 00:00:00
abstract：:Why are some fungi pathogenic while the majority poses no threat to humans or other hosts? Of the more than 1.5 million fungal species only about 150-300 are pathogenic for humans, and of these, only 10-15 are relatively common pathogens. In contrast, fungi are major pathogens for plants and insects. These facts pose ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4419-5638-5_1
更新日期：2012-01-01 00:00:00
abstract：:Schizophrenia alters basic brain processes of perception, emotion, and judgment to cause hallucinations, delusions, thought disorder, and cognitive deficits. Unlike neurodegeneration diseases that have irreversible neuronal degeneration and death, schizophrenia lacks agreeable pathological hallmarks, which makes it on...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-7091-0932-8_22
更新日期：2012-01-01 00:00:00
