Abstract:
:Recently, we collected basic morphometric data from normal and hypertrophic rat hearts: median and mean values of the cell diameter and of the intercapillary distance as well as their variabilities. In the present communication we used these data, first for analysis of the effect of the heterogeneity of capillary spacing on the myocardial tissue PO2. Comparison of tissue PO2 histograms calculated for a situation in which the capillaries are evenly distributed as in the Krogh model, with a situation based on the same capillary but variable intercapillary distances clearly demonstrates the importance of heterogeneity of the capillary spacing as a separate oxygen determinant. This is even more important in the hypertrophic hearts which are characterized by longer and more variable intercapillary distances. In the second part, we compared the classical Krogh model with a model of concentric diffusion in which the oxygen consumption was either uniform or divided into two zones of distinctive rates. Oxygen profiles calculated for the Krogh model with excentric diffusion were similar to those derived for the two models of concentric diffusion.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Rakusan K,Hoofd L,Turek Zdoi
10.1007/978-1-4684-4895-5_44subject
Has Abstractpub_date
1984-01-01 00:00:00pages
463-75eissn
0065-2598issn
2214-8019journal_volume
180pub_type
杂志文章abstract::Respiratory failure is one of the most important risk factors for diagnostic bronchofiberoscopy (BF), whereas therapeutic bronchoscopies are typically performed in intubated patients. Only a few published studies analyzed the outcomes of noninvasive mechanical ventilation (NIV)-facilitated BF. In this case series, we ...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/5584_2019_375
更新日期:2019-01-01 00:00:00
abstract::The mechanism of viral RNA replication in mouse hepatitis virus (MHV)-infected cells was studied by oligonucleotide mapping of every mRNA. We discovered that an oligonucleotide, No. 10, was localized at the 5'-end of every mRNA, and was not colinear with the sequences of the virion genomic RNA. This result indicates t...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4615-9373-7_19
更新日期:1984-01-01 00:00:00
abstract::Adaptation to hypoxia is essential for regulating the survival and functions of hypoxic cells; it is mainly mediated by the hypoxia-inducible factor 1 (HIF1). The alpha subunit of HIF1 (HIF1α) is a well-known regulatory component of HIF1, which is tightly controlled by various types of HIF1α-regulating processes. Prev...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-3-030-34461-0_34
更新日期:2020-01-01 00:00:00
abstract::Immune checkpoint inhibitors (ICIs) have shown significant benefit in cancer patients, but are associated with immune-related adverse events (irAEs), that can affect the gastrointestinal tract resulting in diarrhea and colitis. IrAEs range from mild self-limiting to severe life-threatening disease, which potentially l...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-3-030-02505-2_7
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journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-981-13-1117-8_12
更新日期:2018-01-01 00:00:00
abstract::Diagnosis of allergic conditions is based on skin prick- and/or intradermal tests and on serology. Both methods make use of allergenic preparations and the results mainly depend on the quality of the substances applied and on the reactivity of the subjects. Recombinant allergens can be produced as highly pure proteins...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4615-5855-2_15
更新日期:1996-01-01 00:00:00
abstract::Kinins and angiotensins affect renal and intestinal function and are rapidly converted and/or inactivated in the renal proximal tubule and intestinal tract by converting enzyme, kininases and angiotensinases of the brush border. Converting enzyme accounts for only 40% of intestinal kininases activity. Thus inhibition ...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract::Optical label-free porous Si-based biosensors for rapid bacteria detection are introduced. The biosensors are designed to directly capture the target bacteria cells onto their surface with no prior sample processing (such as cell lysis). Two types of nanostructured optical transducers based on oxidized porous Si (PSiO...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-94-007-2555-3_4
更新日期:2012-01-01 00:00:00
abstract::Parathion is a widely used organophosphoric pesticide which has also been reported to interfere with mouse spermatogenesis. Moreover it has been related to prenatal toxicity in mammals. Sixteen A/ Snell mice were sacrificed at day 17 of pregnancy. Testes and epididymides of the male fetuses were implanted in the allan...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4899-0089-0_23
更新日期:1998-01-01 00:00:00
abstract::In this chapter, the impact of HCN1 channels on the retinal functional properties was presented. HCN1 channel loss led to an intensity-dependent prolongation of the rod system response, in agreement with the threshold mechanism of activation of the channel. Rod outer segment functionality was not altered, supporting t...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-1-4614-0631-0_103
更新日期:2012-01-01 00:00:00
abstract::In closing, let me return to the somewhat irreverent question that I asked at the beginning: Apart from what we learn about fundamentally important biological processes, does male-mediated developmental toxicity make any practical difference? The answer is no, yes, and we don't know. No: The risk of serious birth defe...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-1-4419-9190-4_19
更新日期:2003-01-01 00:00:00
abstract::The effects of high hydrostatic pressure (HHP) on gel strength, microbial numbers, proteolytic activity, color and pH of Pacific whiting surimi gels were investigated. Strong gels without the use of protease inhibitors were formed with HHP treatments from 1-4 kBars. Gel strength was not affected by holding time. Total...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4899-1925-0_6
更新日期:1998-01-01 00:00:00
abstract::The dipeptidyl peptidase IV is an activation marker on T, B and NK cells. Specific inhibitors of DP IV suppress DNA synthesis, as well as cytokine protein production. Here, we describe for the first time the quantitative changes of mRNA expression of IFN-gamma, IL-2, IL-12 and DP IV after inhibition of DP IV. Due to t...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/0-306-46826-3_15
更新日期:2000-01-01 00:00:00
abstract::R3230Ac mammary tumors were grown in transparent window chambers implanted into the dorsal skin flap of 250 g Fischer 344 rats (see Dewhirst et al, 1992). The oxygen pressure distributions in the tumor and host tissue were measured by the oxygen dependent quenching of phosphorescence (see Vinogradov et al, 1996) after...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4615-4863-8_71
更新日期:1998-01-01 00:00:00
abstract::Xeno-transplantation of pancreatic islets represents a promising therapeutic alternative for the treatment of type 1 diabetes mellitus. However, potent innate immune responses induced shortly after the transplantation of donor islets to the recipient, comprising the Instant Blood Mediated Immune Reaction (IBMIR), exer...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-3-319-18603-0_11
更新日期:2015-01-01 00:00:00
abstract::Autophagy is an intracellular degradation and recycling machinery by which cellular materials are delivered to the lysosome for disposal. Beyond lysosomal degradation, autophagy genes play additional roles in secretion and membrane-trafficking pathways. Ranging from cell-intrinsic and cell-type-specific regulation of ...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-981-15-0606-2_10
更新日期:2019-01-01 00:00:00
abstract::Progression to the malignant state is fundamentally dependent on transcriptional regulation in cancer cells. Optimum abundance of cell cycle proteins, angiogenesis factors, immune evasion markers, etc. is needed for proliferation, metastasis or resistance to treatment. Therefore, dysregulation of transcription factors...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-3-030-32656-2_19
更新日期:2019-01-01 00:00:00
abstract:PURPOSE:Retinal degenerations are a heterogeneous group of diseases in which there is slow but progressive loss of photoreceptors (PR). There are currently no approved therapies for treating retinal degenerations. In an effort to identify novel small molecules that are (1) neuroprotective and (2) promote PR differentia...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4614-3209-8_97
更新日期:2014-01-01 00:00:00
abstract::The configurations of myosin projections in striated muscles from the marine crab, Portunus trituberculatus were described in the relaxed and rigor states at the full overlap length of the thin and thick filaments. The crystallographic period of the thick filament is 101.5 nm (14.5 nm X 7) and the thick filament has f...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4684-4703-3_21
更新日期:1984-01-01 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::Tracking of tissue oxygenation around chronic foot wounds may help direct therapy decisions in patients with peripheral artery disease (PAD). Novel sensing technology to enable such monitoring was tested over 9 months in a Sinclair mini-pig model. No adverse events were observed over the entire study period. Systemic ...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-3-319-91287-5_56
更新日期:2018-01-01 00:00:00
abstract::Based on the insights gleaned from decades of research, it seems clear that mechanistic target of rapamycin (mTOR) is an essential signaling node that integrates environmental clues for regulation of cell survival, metabolism and proliferation of the cells. However, overwhelmingly increasing scientific evidence has ad...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-3-030-20301-6_15
更新日期:2019-01-01 00:00:00
abstract::In the last few years, Indol-3-pyruvic acid (IPA) has been subjected to 5 pilot clinical trials in volunteers and a phase II study on patients affected by anxiety, with or without sleep problems. Overall, results indicated a very good safety profile, relief from anxiety and a better quality of sleep in patients treate...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-1-4615-4709-9_29
更新日期:1999-01-01 00:00:00
abstract::The de novo generation of hematopoietic stem and progenitor cells (HSPC) occurs solely during embryogenesis from a population of epithelial cells called hemogenic endothelium (HE). During midgestation HE cells in multiple intra- and extraembryonic vascular beds leave the vessel wall as they transition into HSPCs in a ...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-981-10-3233-2_4
更新日期:2017-01-01 00:00:00
abstract::In this paper we present genomic DNA sequence and histological evidence that the appendix is a site of diversification of the rabbit's primary antibody repertoire. By 6 weeks after birth, the B cell follicular regions of the rabbit appendix and the distribution of the resident lymphoid cells bear a strong morphologica...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4615-2492-2_42
更新日期:1994-01-01 00:00:00
abstract::The allosteric property of globular proteins is applauded as their intrinsic ability to regulate distant sites, and this property further plays a critical role in a wide variety of cellular regulatory mechanisms. Recent advancements and studies have revealed the manifestation of allostery in intrinsically disordered p...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-981-13-8719-7_14
更新日期:2019-01-01 00:00:00
abstract::A novel method for hand movement pattern recognition from electromyography (EMG) biological signals is proposed. These signals are recorded by a three-channel data acquisition system using surface electrodes placed over the forearm, and then processed to recognize five hand movements: opening, closing, supination, fle...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
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更新日期:2011-01-01 00:00:00
abstract::Juvenile neuronal ceroid lipofuscinoses (JNCL) is the most common type of the neuronal ceroid lipofuscinoses (NCLs), a group of pediatric neurodegenerative diseases. In this chapter the genetic and biochemical basis, pathogenesis, clinical features, histopathological features, diagnosis and therapeutic strategies of t...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
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更新日期:2012-01-01 00:00:00
abstract::The relationships between bilayer lipid, diffusional and conformational activities of oxidoreduction components, and electron transfer activity in the mitochondrial inner membrane are considered. Using a new, low pH method to fuse liposome phospholipid (asolectin) with the isolated mitochondrial inner membrane, the me...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章
doi:10.1007/978-1-4757-1419-7_26
更新日期:1980-01-01 00:00:00
abstract::Asian (Elephas maximus) and African (Loxodonta africana) elephants serve as important keystone, umbrella and flagship species. Despite that, population numbers are declining, due mainly to poaching and habitat destruction. Understanding reproductive mechanisms is vital to effective management, particularly insurance p...
journal_title:Advances in experimental medicine and biology
pub_type: 杂志文章,评审
doi:10.1007/978-3-030-23633-5_9
更新日期:2019-01-01 00:00:00