Abstract：
:Intact and viable parenchymal and non-parenchymal liver cell preparations were isolated by enzyme perfusion techniques from young and old rats. The distribution of the lysosomal enzymes acid phosphatase, beta-galactosidase, cathepsin D, acid DNAse, and arylsulphatase B over parenchymal and non-parenchymal cells was determined. In addition, morphological and morphometric changes which occur in parenchymal cells with age were investigated. All lysosomal enzymes studied are present in both cell classes, but non-parenchymal cells possess much ligher activities per mg protein than do parenchymal cells. This phenomenon is most pronounced for cathepsin D with a 13-times higher specific activity in non-parenchymal cells. Electron microscopic observations demonstrated that the lysosomal activities in non-parenchymal cells can be attributed mainly to the large and numerous lysosomal structures in Kupffer cells. Parenchymal cells from old rats have higher lysosomal enzyme activities per mg protein than do hepatocytes from young rats. This observation is in agreement with the general increase with age in the cytoplasmic volume fraction occupied by lysosomal structures in parenchymal cells. In general, non-parenchymal cells show no increase in specific enzyme activities with age. The results obtained suggest an increase in the heterogeneity--in both appearance and enzyme content--of the lysosomal structures in parenchymal cells with age.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Knook DL,Sleyster EC,van Noord MJdoi
10.1007/978-1-4757-0731-1_12subject
Has Abstractpub_date
1975-01-01 00:00:00pages
155-69eissn
0065-2598issn
2214-8019journal_volume
53pub_type
杂志文章abstract：:Myocardial ischemia-reperfusion (IR) injury during acute myocardial infarction or open-heart surgery would promote oxidative stress, leading to the accumulation of reactive aldehydes that cause cardiac damage. It has been well demonstrated that aldehyde dehydrogenase (ALDH)-2 is an important cardioprotective enzyme fo...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-13-6260-6_6
更新日期：2019-01-01 00:00:00
abstract：:It is well known that blood flow increases in an exercising limb to match increases in oxygen consumption. However, it is less clear what effects occur in the opposite limb. We performed a one legged incremental cycling protocol and used near-infrared spectroscopy to measure changes in muscle blood volume and oxygenat...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-0075-9_62
更新日期：2003-01-01 00:00:00
abstract：:Administration of clenbuterol to rats in the drinking water over a four day period increased incorporation of [3H]leucine into muscle protein but did not result in an increase in body or muscle weight. However, both urinary and liver taurine were significantly reduced at the highest dose of clenbuterol (2 mg.kg-1.day-...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4899-0182-8_25
更新日期：1996-01-01 00:00:00
abstract：:Three-dimensional printing technique has been adapted for orthopedic surgery, and a patient-specific surgical guide (PSG) has been introduced as a convenient surgical instrument and implicated in the ideal positioning of the components, including acetabular and femoral components in total hip arthroplasty (THA). PSG i...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-13-1396-7_23
更新日期：2018-01-01 00:00:00
abstract：:In summary, intermittent, low dose methotrexate treatment is: 1.) antiinflammatory in the murine air pouch model of inflammation; 2.) selectively increases intracellular AICAR concentration; 3.) increases adenosine concentration in an inflammatory exudate; and, 4.) inhibits leukocyte accumulation at an inflamed site b...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-2584-4_89
更新日期：1994-01-01 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：:Exercise training (ExT) is widely used for the prevention and treatment of several chronic cardiovascular diseases. However, only recently it started to be recognized as safe and beneficial in pulmonary arterial hypertension. Despite the consistency of its favorable effects on exercise tolerance and quality of life, t...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-10-4307-9_17
更新日期：2017-01-01 00:00:00
abstract：:Liver alcohol dehydrogenase is shown to catalyze dehydrogenation, dismutation and esterolysis. These multifunctional activities were found to associate with all isozymes. The reversible dehydrogenation of alcohols takes place via a random mechanism with a pathway for the formation of enzyme-NADH-alcohol complex which ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-1419-7_17
更新日期：1980-01-01 00:00:00
abstract：:Although the gasotransmitter hydrogen sulfide (H(2)S) generally dilates systemic arteries in mammals, it causes constriction of pulmonary arteries. In isolated rat pulmonary arteries, we have shown that the H(2)S precursor cysteine enhances both hypoxic pulmonary vasoconstriction and tension development caused by the ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-18440-1_10
更新日期：2015-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-09794-7_3
更新日期：2008-01-01 00:00:00
abstract：:The influenza Sentinel surveillance system is a source of valuable data about the dynamics of epidemic seasons in Poland. During the epidemic season 2016/2017, more than 1,000 samples were examined, of which 48% were positive for influenza diagnosis. The predominance of influenza A/H3N2/ was confirmed. Influenza B vir...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/5584_2018_237
更新日期：2018-01-01 00:00:00
abstract：:Central tolerance to self-antigens is formed in the thymus where deletion of clones with high affinity to "self" takes place. Expression of peripheral antigens in the thymus has been implicated in T cell tolerance and autoimmunity. During the last years, it has been shown that medullary thymic epithelial cells (mTECs)...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-72005-0_14
更新日期：2007-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4614-7411-1_12
更新日期：2013-01-01 00:00:00
abstract：:Streptococcus pneumoniae (Pnc) is one of the leading pathogens in the world. Attachment to respiratory mucosal and lung surfaces is presumed to be involved in carriage, in disease and in the interaction with macrophages initiating innate immune responses. We hypothesized that bacterial adhesins mediate Pnc adhesion an...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/0-306-46831-X_6
更新日期：2000-01-01 00:00:00
abstract：:1) Motility seems to be required for an intimate association with the intestinal mucosa which is necessary for efficient toxin delivery in the pathogenicity of V. cholerae. 2) A vaccine of semipurified flagella (CF) afforded a high degree of active and passive immunity in the rabbit ileum to both homologous and hetero...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-3369-2_50
更新日期：1978-01-01 00:00:00
abstract：:Horse liver alcohol dehydrogenase was carboxymethylated at the active site Cys-46 using 90% [1-13C]bromoacetate. The enriched carboxylate resonance was studied in the absence and presence of coenzymes and inhibitors. Previous ambiguities regarding the resonance in the NAD+ complex have now been resolved. However, it i...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-1419-7_9
更新日期：1980-01-01 00:00:00
abstract：:The major central part of elastic ligaments is constituted by longitudinally orientated elastic fibres, each surrounded by a sheath of spirally orientated collagen fibrils with an intervening thin layer of microfibrils. In the terminal region of such ligaments the orientation of the collagen fibrils is longitudinal an...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-9093-0_9
更新日期：1977-01-01 00:00:00
abstract：:Since its introduction in the early 1980s, the concept of a "preferred direction" for neuronal discharge has proven to be a powerful means of studying diverse properties of individual neurons in the motor areas of the brain. More recently, the activity recorded from ensembles of neurons, each with an identified prefer...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-0-387-77064-2_9
更新日期：2009-01-01 00:00:00
abstract：:Taurine, an endogenous amino sulfonic acid, exhibits numerous neuropsychopharmacological activities. Previous studies in our laboratory have shown that it is an effective anti-cataleptic and neuro-protective agent. Current investigations show that acute or chronic administration of psychotropic drug cocaine may increa...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4614-6130-2_1
更新日期：2013-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 历史文章,杂志文章
doi：10.1007/978-1-4614-2098-9_2
更新日期：2012-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-10-1061-3_24
更新日期：2016-01-01 00:00:00
abstract：:Scleroderma profunda represents an unusual clinical entity. There are no unified criteria for its diagnosis. Seven patients with scleroderma profunda were studied. The clinical features can be summarised in three groups: 1. hyperpigmented plaques with subcutaneous induration; 2. erythematous plaques with induration of...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Network-based approach for psychological phenotypes assumes the dynamical interactions among the psychiatric symptoms, psychological characteristics, and neurocognitive performances arise, as they coexist, propagate, and inhibit other components within the network of mental phenomena. For differential types of dataset...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-32-9705-0_2
更新日期：2020-01-01 00:00:00
abstract：:Chronic inflammatory diseases of the intestine (i.e. Crohn's and chronic ulcerative colitis- collectively known as inflammatory bowel disease [IBD]) are a very significant public health problem in the United States and other industrialized nations. Thus, effort has been made toward understanding the biological mechani...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4615-0193-0_35
更新日期：2002-01-01 00:00:00
abstract：:The control of the different angiogenic process is an important point in osteochondral regeneration. Angiogenesis is a prerequisite for osteogenesis in vivo; insufficient neovascularization of bone constructs after scaffold implantation resulted in hypoxia and cellular necrosis. Otherwise, angiogenesis must be avoided...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-76735-2_14
更新日期：2018-01-01 00:00:00
abstract：:Alcohol drinking increases the risk for a number of cancers. Currently, the highest risk (Group 1) concerns oral cavity, pharynx, larynx, esophagus, liver, colorectum, and female breast, as assessed by the International Agency for Research on Cancer (IARC). Alcohol and other beverage constituents, their metabolic effe...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-09614-8_3
更新日期：2015-01-01 00:00:00
abstract：:Raw soya flour (RSF) feeding to rats produces pancreatic hypertrophy and hyperplasia, and, if sufficiently prolonged, the spontaneous development of pancreatic neoplasms and the potentiation of pancreatic carcinogens. With continuous exposure to RSF the threshold dose for pancreatic growth is approximately 20% RSF, bu...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-0022-0_4
更新日期：1986-01-01 00:00:00
abstract：:Primary human and primate brain microvascular endothelial cells were tested for permissiveness to coronaviruses JHM and 229E. While sub-genomic viral RNAs could be detected up to 72 hours post-infection, primate cells were abortively infected and neither virus caused cytopathology. Human cells were non-permissive for ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-1899-0_11
更新日期：1995-01-01 00:00:00
abstract：:The clinical challenge on surface engineering of medical devices to prevent microorganisms adhesion and biofilm formation, has become an essential aspect for medical implants. Antibacterial properties of Graphene Oxide (GO) have been demonstrated across a broad spectrum of bacteria, and the different mechanisms of act...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/5584_2019_434
更新日期：2020-01-01 00:00:00
abstract：:The United States (US) Food and Drug Administration (FDA) is a regulatory agency that has oversight for a wide range of products entering the US market, including gene and cell therapies. The regulatory approach for these products is similar to other medical products within the United States and consists of a multitie...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-18618-4_1
更新日期：2015-01-01 00:00:00
