Abstract：
:This paper suggests the molecular mechanism in muscle whereby some of the delta G of ATP hydrolysis is converted to mechanical work. There is good evidence for thinking that all mechanical, thermal, and chemical observations of muscle result from the summated, repetitive, operation of identical unitary "engines". Such an engine is the S-1 moiety of a myosin crossbridge and the adjacent actin. The operational principle is evident on realizing that S-1 is a particle with two interactive ligand (ATP and actin) binding sites. The change resulting from binding nucleotide is propagated to the actin-binding site, there specifying affinity and angles of attachment. Repetition follows because stepwise enzymatic degradation through intermediates is equivalent to cyclical changing of the site occupant. Trans- (S-1) propagation ensures a work cycle because actin held at a succession of relative positions can generate external work. Proximity mapping and protein chemical studies of S-1 suggest that variation in the position at which actin is held results from the simultaneous operation of a continuing (S-1)-actin contact and a polyphosphate charge-modulated coulombic contact.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Morales MFsubject
Has Abstractpub_date
1988-01-01 00:00:00pages
331-42eissn
0065-2598issn
2214-8019journal_volume
226pub_type
杂志文章abstract：:Human genetic factors play an important role in determining the outcome of infections caused by intracellular pathogens, including mycobacteria and salmonellae (reviewed in 1). The genetic elements involved and the mechanisms by which these control disease-susceptibility versus resistance, however, remain incompletely...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4615-0059-9_24
更新日期：2003-01-01 00:00:00
abstract：:Autosomal Dominant Polycystic Kidney Disease (ADPKD) is one of the most common inherited disorders. It is the fourth leading cause of renal replacement and renal failure worldwide. Mutations in PKD1 or PKD2 cause ADPKD. Patients with ADPKD show progressive growth of renal cysts filled with cystic fluid, leading to end...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-10-2041-4_1
更新日期：2016-01-01 00:00:00
abstract：:For the better understanding of the molecular mechanism of E-C coupling, two key questions remain to be resolved: (a) how the excitation signal elicited in the T-tubule membrane is transmitted to the ryanodine receptor, RyR (signal transmission), and (b) how the signal transmitted from the T-tubule to the RyR is trans...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-6039-1_23
更新日期：1998-01-01 00:00:00
abstract：:Vascular dementia (VaD) is well recognized as the second most familiar form of dementia in the aged population. The present study is aimed to investigate the neuroprotective effects of ethanolic extract of leaves of Ocimum sanctum (EEOS) against hyperhomocysteinemia (HHcy)-induced vascular dementia (VaD) in Wistar rat...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-030-32633-3_30
更新日期：2020-01-01 00:00:00
abstract：:Computer-aided diagnosis provides a medical procedure that assists physicians in interpretation of medical images. This work focuses on computer-aided tongue image analysis specifically, based on Traditional Chinese Medicine (TCM). Tongue diagnosis is an important component of TCM. Computerized tongue diagnosis can ai...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-10-5717-5_5
更新日期：2017-01-01 00:00:00
abstract：:Parkinson's disease (PD) is a progressive neurodegenerative disorder that is primarily characterized by the degeneration of dopaminergic neurons in the nigrostriatal pathway. Loss-of-function mutations in the gene encoding PARK7/DJ-1 were identified in familial PD. Wild-type DJ-1 acts as an oxidative stress sensor in ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-10-6583-5_12
更新日期：2017-01-01 00:00:00
abstract：:Laser diffraction and photomicrography have been used to monitor sarcomere length changes in single muscle fibres of the frog, at long sarcomere lengths, during fixed end tetani. In the central 90% of all fibres, changes in sarcomere length were consistently less than 0.25 micron. Sarcomere length showed an initial ra...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-4703-3_42
更新日期：1984-01-01 00:00:00
abstract：:Midbrain dopaminergic neurons (mDA), comprising the substanti nigra pars compacta (A8), the ventral tegmental area (A9) and the retrorubal field (A10) subgroups, are generated from floor plate progenitors, rostral to the isthmic boundary. Floor plate progenitors are specified to become mDA progenitors between embryoni...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4419-0322-8_5
更新日期：2009-01-01 00:00:00
abstract：:Gremlin is a member of the TGF-β superfamily that can act as a BMP antagonist, and recently, has been described as a ligand of the vascular endothelial growth factor receptor 2 (VEGFR2). Gremlin shares properties with the Notch signaling pathway. Both participate in embryonic development and are reactivated in patholo...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-36422-9_6
更新日期：2020-01-01 00:00:00
abstract：:CALX, the NCX homolog in Drosophila, involves in light-mediated Ca(2+) homeostasis in sensory neuronal cells. CALX exhibits a unique negative Ca(2+) regulatory property mediated by Ca2+ binding at its intracellular regulatory domain. Our structural studies of individual CBD1 or CBD2 domain reveal that CBD1 is the only...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-4756-6_6
更新日期：2013-01-01 00:00:00
abstract：:After an RNA is transcribed, it undergoes a variety of processing steps that can change the encoded protein sequence (through alternative splicing and RNA editing), regulate the stability of the RNA, and control subcellular localization, timing, and rate of translation. The recent explosion in genomics techniques has ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-29073-7_1
更新日期：2016-01-01 00:00:00
abstract：:Tumor-associated neutrophils (TANs) play a major role during cancer development and progression in the tumor microenvironment. Neutrophil elastase (NE) is a serine protease normally expressed in neutrophil primary granules. Formation of neutrophil extracellular traps (NETs), a mechanism used by neutrophils, has been t...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-44518-8_2
更新日期：2020-01-01 00:00:00
abstract：:This chapter intends to provide an overview of computer-assisted minimally invasive spine surgery (CAMISS) and its clinical application. Since minimally invasive spine surgery was first brought out, the concept of decreasing the damage to patient was soon become popular. However, without the proper surgical field, the...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-13-1396-7_3
更新日期：2018-01-01 00:00:00
abstract：:Neonatal stroke presents with features of encephalopathy and can result in significant morbidity and mortality. We investigated the cerebral metabolic and haemodynamic changes following neonatal stroke in a term infant at 24 h of life. Changes in oxidation state of cytochrome-c-oxidase (oxCCO) concentration were monit...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4939-3023-4_62
更新日期：2016-01-01 00:00:00
abstract：:Serial femtosecond crystallography (SFX) at X-ray free-electron lasers (XFELs) is a powerful method to determine high-resolution structures of pharmaceutically relevant membrane proteins. Recently, the technology has been adapted to carry out serial millisecond crystallography (SMX) at synchrotron sources, where beamt...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-35072-1_10
更新日期：2016-01-01 00:00:00
abstract：:The glucose metabolism in human polymorphonuclear (PMN) leukocytes was stimulated by latex particles, zymosan particles, gamma-G globulin and formylmet-leu-phe (FMLP) peptide. Maximum stimulation occurred when zymosan particles in amounts above 0.25 mg/ml per 4 X 10(6) leukocytes were used. Latex particles, gamma-G gl...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-8088-7_37
更新日期：1982-01-01 00:00:00
abstract：:The evidence reviewed here indicates that macrophages, either acting alone or in concert with other cells, influence the proliferation of multiple types of cells. Most of the data indicate that these effects are mediated by soluble macrophage-elaborated products (probably proteins) although the role of direct cell-to-...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-4394-3_25
更新日期：1982-01-01 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：:Gastric polyps occur in 1-4 % of patients undergoing gastroscopy. Although most are sporadic, some gastric polyps are part of an underlying hereditary syndrome. Gastric polyps can be seen in each of the well-known gastrointestinal polyposis syndromes, but also in Lynch syndrome and in several rare not primarily gastro...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-41388-4_17
更新日期：2016-01-01 00:00:00
abstract：:Ammonia is generated from a large number of metabolically important reactions. Despite its central importance in whole body nitrogen homeostasis excess ammonia is neurotoxic and its concentration must be kept low. Ammonia generated in most extrahepatic tissues is detoxified by incorporation into glutamine (amide). Thi...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-5826-8_2
更新日期：1990-01-01 00:00:00
abstract：:Renewal of rod photoreceptor outer segments in the mammalian eye involves synchronized diurnal shedding after light onset of spent distal outer segment fragments (POS) linked to swift clearance of shed POS from the subretinal space by the adjacent retinal pigment epithelium (RPE). Engulfed POS phagosomes in RPE cells ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-17121-0_95
更新日期：2016-01-01 00:00:00
abstract：:The effect of acute exposure to cigarette smoke (CS) on the respiratory system has been less extensively studied than the long term effects of smoking. The aim of the present study was to evaluate the acute response to CS in smokers suffering from chronic obstructive pulmonary disease (COPD) and in healthy smokers. Ni...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/5584_2016_43
更新日期：2017-01-01 00:00:00
abstract：:Changes in tumor tissue oxygenation and acidity were determined using ultramicroelectrodes, and presented in histogram fashion. The effect of Hyperthermia and Hpd photo-therapy were tested. It was found that both modalities affect tumor microcirculation, causing a marked drop in oxygen availability. Tissue pH is decre...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-7790-0_55
更新日期：1983-01-01 00:00:00
abstract：:The surface protein S of transmissible gastroenteritis virus (TGEV) has a sialic acid binding activity that enables the virus to agglutinate erythrocytes. A protocol is described that has been successfully applied to the isolation of hemgglutination-defective mutants. The potential of these mutants for the characteriz...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-5331-1_73
更新日期：1998-01-01 00:00:00
abstract：:Porphyrins form extremely stable chelates with Cu2+. Two copper radionuclides, 67Cu and 64Cu, have attractive nuclear decay properties for use in nuclear medicine applications. We have investigated the use of radiocopper-labeled porphyrins for localization in inflamed tissue and for attachment to antibodies for tumor ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4613-0537-8_9
更新日期：1989-01-01 00:00:00
abstract：:Alterations in structural and biochemical properties of muscles that underlie physiological parameters of contractile force, speed and fatigability are described under conditions of 1) overuse: imposed electrical stimulation, natural exercise and functional overload; 2) reinnervation of denervated muscles; and 3) unde...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：
更新日期：1995-01-01 00:00:00
abstract：:Binding of mammalian sperm to the zona pellucida and the induction of the acrosome reaction are prerequisites for successful oocyte fertilization. In the mouse model, the zona pellucida consists of three sulfated glycoproteins, ZP1, ZP2, and ZP3. Zona pellucida proteins are secreted to form a filamentous zona matrix i...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:Mesenchymal stem cells (MSCs) are pluripotent stem cells with the ability to differentiate into a variety of other connective tissue cells, such as chondral, bony, muscular, and tendon tissue. Bone marrow-derived MSCs are pluripotent cells that can differentiate among others into osteoblasts, adipocytes and chondrocyt...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-76711-6_16
更新日期：2018-01-01 00:00:00
abstract：:Rats fed a high-fat diet before and during lactation have difficulty initiating lactation and have high pup mortality rates, low milk production and, consequently, poor pup growth. To determine if these adverse outcomes can be mitigated with dietary changes made after delivery, obese Sprague-Dawley rats (who had previ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-1371-1_12
更新日期：2001-01-01 00:00:00
abstract：:Taurine (2-aminoethanesulfonic acid) is a sulfur-containing organic acid, which has various physiological functions, including membrane stabilization, cell-volume regulation, mitochondrial protein translocation, anti-oxidative activity, neuroprotection against neurotoxicity and modulation of intracellular calcium leve...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-94-024-1079-2_2
更新日期：2017-01-01 00:00:00
