Abstract:
:Localization of myoplasmic free calcium was measured in fura2-loaded single rat myocardial cells to determine whether the mechanism of norepinephrine desensitization includes redistribution of calcium. Fluorescence intensities at each pixel were quantitated by use of a photon-counting, microchannel plate camera. From these images, values of calcium-dependent fluorescence intensity averages in whole cells, areas of calcium release (as zones of high intracellular calcium concentrations), and ratios of fluorescence intensity in central vs. peripheral sites were determined. Stimulation by 1 nM norepinephrine caused an increase in total free intracellular calcium and an activation of intracellular calcium release sites from subsarcolemmal pools initially and later from centrally located calcium pools. Subsequent addition of 100 nM norepinephrine failed to cause significant intracellular calcium release from centrally located pools. In contrast, forskolin exposure still released high concentrations of calcium from these central pools. These results indicate that pretreatment with even a relatively small concentration of norepinephrine causes markedly decreased subsequent intracellular calcium release from centrally located sarcoplasmic reticulum because of a refractoriness of the link between receptor activation and calcium release.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Erne P,Hermsmeyer Kdoi
10.1016/0006-291x(88)90598-0subject
Has Abstractpub_date
1988-02-29 00:00:00pages
333-8issue
1eissn
0006-291Xissn
1090-2104pii
0006-291X(88)90598-0journal_volume
151pub_type
杂志文章abstract::Mitogaligin, a protein encoded by galig, an internal cytotoxic gene of the galectin-3 locus, is mostly a mitochondrial protein. Mitochondrial targeting is due to an already identified mitochondrial localization signal. Interaction of mitogaligin with mitochondria leads to cytochrome c cytosolic leakage and ultimately ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2009.12.162
更新日期:2010-01-29 00:00:00
abstract::The distribution, labeling and interrelationship of microsomal and lysosomal dolichol and dolichyl-P in rat liver was investigated. After membrane induction with phenobarbital, N-nitrosodiethylamine and diethylhexylphthalate, the amount of microsomal and lysosomal dolichols are modulated independently. Liposomal label...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(83)80022-9
更新日期:1983-09-30 00:00:00
abstract::Regulation of the bone sialoprotein (BSP) gene is important in the differentiation of osteoblasts, in bone matrix mineralization, and in tumor metastasis. We investigated BSP gene transcription by performing functional analysis of the 9256bp of the 5' flanking region of the murine BSP gene containing its promoter. We ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.02.068
更新日期:2004-04-02 00:00:00
abstract::The thiazide-sensitive Na-Cl cotransporter SLC12A3 displays expression restricted to distal convoluted tubule cells where it catalyzes the uptake of sodium and chloride through the apical membrane. We sequenced 1959 bp of the 5' flanking region of human SLC12A3, located the area of transcription initiation, and used d...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.4673
更新日期:2001-04-13 00:00:00
abstract::Our aim was to clarify the role of anti-phospholipid antibodies in the pathogenesis of monocyte tissue factor (TF) expression and thromboembolic complications (TE) in patients with SLE. We examined cell surface expression of TF on monocytes in 93 SLE patients. Monocyte TF expression was significantly higher in SLE pat...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.10.173
更新日期:2008-01-04 00:00:00
abstract::Using electron spin resonance stop-flow technique, the transverse motion (flip-flop) of 3-([alpha-carboxy-4-(4-hydroxy-3-iodophenoxy)-3,5- diiodophenethyl]carbamoyl)-2,2,5,5-tetramethyl-3-pyrrolin (T3-SL) in dipalmitoyl L-alpha-phosphosphatidylcholine (DPPC) membranes was evaluated. At 22 degrees C, the electron spin ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)91817-0
更新日期:1985-08-30 00:00:00
abstract::Type VII collagen (Col7) is the major component of anchoring fibrils and very important for skin integrity. This is emphasized by the Col7 related skin blistering diseases dystrophic epidermolysis bullosa and epidermolysis bullosa acquisita. Structural data that provides insights into the interaction network of Col7 a...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2012.11.119
更新日期:2013-01-11 00:00:00
abstract::Hepatitis A virus (HAV) protein 3AB is a membrane-interacting protein containing a stretch of 21 hydrophobic amino acid residues. The nature of its membrane association was studied in detail by analysing various deletion mutants. In vivo and in vitro expression of the wild-type protein and its mutants allowed to demon...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.9121
更新日期:1998-08-10 00:00:00
abstract::Cells released from quiescence exhibit increased levels of the DNA-modifying enzyme topoisomerase II, a nuclear protein which is also a target for antitumour drugs such as VP-16 (etoposide) and m-AMSA (4',9'-acridinylamino-methanesulfon-m-anisidide). By using Western blotting, DNA-protein crosslinking and drug-induced...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(89)91613-6
更新日期:1989-04-14 00:00:00
abstract::Fura-2 loaded pancreatic beta-cells, isolated from obese hyperglycemic mice, were studied with respect to cytoplasmic free Ca2+ concentration ([Ca2+]i), insulin release and efflux of indicator. In the absence of glucose there was a continuous efflux of fura-2, which was markedly increased by stimulation with a high co...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(89)92426-1
更新日期:1989-02-28 00:00:00
abstract::Fungi, particularly the white rot basidiomycetes, have an extraordinary capability to degrade and/or mineralize (to CO(2)) the recalcitrant fused-ring high molecular weight (4 aromatic-rings) polycyclic aromatic hydrocarbons (HMW PAHs). Despite over 30years of research demonstrating involvement of P450 monooxygenation...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2010.07.094
更新日期:2010-09-03 00:00:00
abstract::Phage displayed peptide library was used to select tumor necrosis factor alpha (TNFalpha) binding peptides. After three sequential rounds of biopanning, some linear TNFalpha-binding peptides were identified from a 12-mer peptide library. A consensus sequence (L/M)HEL(Y/F)(L/M)X(W/Y/F), where X might be variable residu...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2003.09.141
更新日期:2003-10-31 00:00:00
abstract::This study was designed to investigate the protective effect of the autophagy signaling pathway against Mycobacterium tuberculosis infection in type II alveolar epithelial cells. An in vitro M. tuberculosis system was established using human A549 cells. Infection-induced changes in the expression of the autophagic mar...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2013.01.111
更新日期:2013-03-08 00:00:00
abstract:AIM/HYPOTHESIS:Diabetes is a hyperglycaemic disease treated by a set of allopathic drugs and natural biomolecules along with many variety of stem cell. We aim to investigate the role of these drugs in targeting common protein molecule in diabetes and its associated disease. We also aim to investigate the organ degenera...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.07.014
更新日期:2020-09-03 00:00:00
abstract::The effect of 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] on the growth of normal human keratinocytes cultured in serum-free medium was investigated. 1,25(OH)2D3 inhibited the cell growth at 10(-7) M by 75.3% and at 10(-6) M almost completely. The growth inhibition was accompanied by changes related to proliferation: (1) r...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(90)90898-w
更新日期:1990-01-30 00:00:00
abstract::p202, an interferon (IFN) inducible protein, is a phosphonuclear protein involved in the regulation of cell cycle, apoptosis, and differentiation. E2F1 belongs to the E2F family of proteins that are important cell cycle regulators in promoting cell growth. On the other hand, the deregulated expression of E2F1 also tri...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(03)00320-6
更新日期:2003-03-28 00:00:00
abstract::Maintaining cellular lipid composition is essential for many cell processes. Our previous study has demonstrated that Spt23 is an important transcription factor within the cell and responsible for the regulation of fatty acid desaturase genes. Disruption of SPT23 results in increased lipid saturation. In the present s...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.08.024
更新日期:2016-09-16 00:00:00
abstract::Rheumatoid arthritis (RA) is characterised by chronic inflammation of synovial tissue with aggressive proliferation of synovial cells causing destruction of cartilage and bone. Immunopathological mechanisms, infectious causes and genetic factors have been discussed, but the etiology of the disease has not been underst...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.6607
更新日期:1997-05-08 00:00:00
abstract::Human sera from autoimmune gastritis patients containing autoantibodies to gastric parietal cells were analyzed by immunological methods. Enzyme linked immuno-sorbent assay demonstrated that all nine sera reacted with pig gastric vesicles enriched in H+/K(+)-ATPase (gastric proton pump). Immunoblotting experiments ind...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.1032
更新日期:1993-01-15 00:00:00
abstract::2-Amino-3,8-dimethylimidazo(4,5-f)quinoxaline (MeIQx) is a potent mutagen found in cooked food. MeIQx and its isotopically labelled (13C, 15N2 and 14C) analogues were synthesised and used for metabolic studies in vivo. An equimolar mixture of MeIQx and its 13C, 15N2 stable isotope labelled analogue (containing tracer ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(87)80284-x
更新日期:1987-11-13 00:00:00
abstract::Tuberous sclerosis complex 2 (TSC2) is a tumor-suppressor protein that is partially regulated by insulin, energy, oxygen, and growth factors. Mutations in the TSC2 gene and loss of TSC2 promote cell growth by the mammalian target of rapamycin complex 1 (mTORC1) activation. Furthermore, S-adenosylmethionine (SAM) senso...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2021.01.033
更新日期:2021-01-19 00:00:00
abstract::High blood glucose levels of KK-A(y) mice with type 2 diabetes mellitus were normalized by daily intraperitoneal (ip) administration of a zinc(II) complex, bis(maltolato)zinc(II) (Zn(Mal)(2)) with a Zn(O(4)) coordination mode, following the finding of strong in vitro insulinomimetic activity in isolated rat adipocytes...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.4456
更新日期:2001-03-01 00:00:00
abstract::Sterol carrier protein X (SCPx) is a peroxisomal protein with both lipid transfer and thiolase activity. Treatment of mouse adrenal Y1 cells with cAMP for 24h caused a significant induction of SCPx mRNA levels. Reporter gene studies demonstrated that treatment with cAMP and SF-1 was able to activate the SCPx promoter....
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.03.194
更新日期:2007-06-01 00:00:00
abstract::Sex determining region Y-box 2 (SOX2) is well known as one of the "stemness" factors and is often expressed in cancers including breast cancer. In this study, we developed a reporter system using fluorescent protein driven by the promoter for SOX2 gene to detect and isolate living SOX2-positive cells. Using this syste...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2013.06.038
更新日期:2013-07-26 00:00:00
abstract::The ability to simultaneously isolate intact DNA-free RNA, genomic DNA, and proteins from a biological specimen can be useful in cloning genes and analyzing gene expression. Equilibrium density gradient centrifugation with CsCl is a useful tool for fractionating, quantitatively separating, and characterizing RNA, DNA,...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2003.09.246
更新日期:2003-12-05 00:00:00
abstract::Multidrug transporters are of considerable importance because they present problems in the treatment of infectious disease and cancer. A central issue is the ability of efflux pumps to recognize an astounding array of structurally diverse compounds. The yeast Pdr5p efflux pump, which is a member of the ATP-binding cas...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章,评审
doi:10.1016/j.bbrc.2007.02.011
更新日期:2007-04-27 00:00:00
abstract::Smooth muscle of guinea-pig taenia caecum was desensitized by treatment with 10(-4)M carbachol or 10(-4)M histamine for 30 min in Ca-free solution containing 2mM EGTA. Phosphatidylinositol turnover stimulated by carbachol was not reduced by desensitization with either carbachol or histamine, while the turnover stimula...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(89)92371-1
更新日期:1989-07-31 00:00:00
abstract::Adiponectin has gained significant attention as a mediator of insulin sensitivity. Recently, two receptors of this adipocyte-secreted hormone, adiponectin receptor 1 (AdipoR1) and 2 (AdipoR2), have been cloned. To improve our understanding of the regulation of these receptors in adipocytes, AdipoR1 and AdipoR2 mRNA wa...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.02.081
更新日期:2005-04-15 00:00:00
abstract::Collagen synthesis in human fibroblasts was increased by the presence of 0.1M excess NaCl in the culture medium. Type analysis of the collagen produced by the cells showed the increase in the ratio of type III collagen to the total collagen. Similar NaCl effects were observed in several cell lines derived from differe...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(83)91577-2
更新日期:1983-11-30 00:00:00
abstract::C1 inhibitor (C1IN) is a multi-facet serine protease inhibitor in the plasma cascades, inhibiting several proteases, notably, regulates both complement and contact system activation. Despite huge advancements in the understanding of C1IN based on biochemical properties and its roles in the plasma cascades, the phyloge...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2014.05.097
更新日期:2014-07-18 00:00:00