Abstract:
:Alzheimer's disease (AD) pathology is characterized by plaques, tangles, and neuronal cell loss. The main constituent of plaques is beta-amyloid peptide (A beta), a 39-42 residue peptide which has been linked to disruption of calcium homeostasis and neurotoxicity in vitro. We demonstrate that a neurotoxic fragment of A beta, A beta (25-35) spontaneously inserted into planar lipid membranes to form weakly selective, voltage dependent, ion-permeable channels. We suggest that channel formation may be involved in the pathogenesis of AD and that A beta (25-35) may be the active channel forming segment.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Mirzabekov T,Lin MC,Yuan WL,Marshall PJ,Carman M,Tomaselli K,Lieberburg I,Kagan BLdoi
10.1006/bbrc.1994.2047subject
Has Abstractpub_date
1994-07-29 00:00:00pages
1142-8issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(84)72047-Xjournal_volume
202pub_type
杂志文章abstract::T-type Ca(2+) channels are important regulators of peripheral sensory neuron excitability. Accordingly, T-type Ca(2+) currents are often increased in various pathological pain conditions, such as inflammation or nerve injury. Here we investigated effects of inflammation on functional expression of T-type Ca(2+) channe...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.02.118
更新日期:2016-04-29 00:00:00
abstract::Hepatitis delta virus (HDV) is a human pathogen causing fulminant hepatitis and liver cirrhosis. HDV has a circular single-stranded RNA genome, which encodes only a single protein, hepatitis delta antigen (HDAg), from the antigenomic strand. Although the functional roles of HDAg have been extensively studied, the mole...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.8317
更新日期:1998-03-27 00:00:00
abstract::The stage V sporulation protein G (SpoVG) homolog of Staphylococcus aureus is a modulator of virulence factor synthesis and antibiotic resistance in this clinically important gram-positive pathogen. Here we demonstrate that SpoVG can be phosphorylated by the staphylococcal Ser/Thr protein kinase Stk1 and that phosphor...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.04.044
更新日期:2016-05-13 00:00:00
abstract::Putative E2/NS1 sequence of hepatitis C virus was expressed in E. coli as a fusion protein with maltose binding protein. Approximately 80 kDa protein was obtained containing 38 kDa E2/NS1 protein. The antibody to this protein was detectable in the same serum from which the sequence was amplified. It was also detectabl...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(92)91595-h
更新日期:1992-11-30 00:00:00
abstract::Rats were fed for 15 days a diet containing ammonium acetate (20% w/w) and then injected i. p. with ammonium acetate (7 mmol/Kg). Only 1 out of 18 control rats but 9 of 18 rats fed ammonium survived, indicating a protective effect of ammonium ingestion against an acute ammonia challenge. Blood ammonia returned to norm...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(88)81324-x
更新日期:1988-06-30 00:00:00
abstract::Fibroblast growth factor (FGF)-23 was identified as a causative factor of tumor-induced osteomalacia and also as a responsible gene for autosomal dominant hypophosphatemic rickets. To clarify the pathophysiological roles of FGF-23 in these diseases, we generated its transgenic mice. The transgenic mice expressing huma...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2003.12.102
更新日期:2004-02-06 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2014.01.048
更新日期:2014-02-14 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(83)80018-7
更新日期:1983-09-30 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.4548
更新日期:2001-03-23 00:00:00
abstract::Nuclei were isolated from bloodstream forms of Trypanosoma brucei by nitrogen cavitation and sedimentation through percoll density gradients. Transcription studies with these nuclei in vitro demonstrated features not seen with other eukaryotes: RNA synthesis was much greater in the presence of Mn2+ than with Mg2+ and ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)91316-6
更新日期:1985-09-16 00:00:00
abstract::Isolated Agrobacterium tumefaciens was exposed to different extremely low frequencies of square amplitude modulated waves (QAMW) from two generators to determine the resonance frequency that causes growth inhibition. The carrier was 10 MHz sine wave with amplitude ±10 Vpp which was modulated by a second wave generator...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2017.10.008
更新日期:2017-12-09 00:00:00
abstract::Electroporation is the most widely employed method of gene transfer into macrophages which are hard to transfect. RAW 264.7 is a widely used cell line for studying macrophage responses. Electroporation of RAW 264.7 cells with commercial reagents although very efficient is expensive necessitating the development of cos...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2017.04.043
更新日期:2017-05-27 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(83)91005-7
更新日期:1983-08-30 00:00:00
abstract::Extra long PCR analysis of mitochondrial DNA (mtDNA) isolated from skeletal muscle of humans of different ages revealed three phenomena: (i) the amount of normal length mtDNA (16.5 kb) was progressively reduced with age, such that the cells of old age individuals (about 90 years) contained little, or undetectable amou...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.6251
更新日期:1997-03-06 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.02.166
更新日期:2004-04-16 00:00:00
abstract::The crypt-villi axis of intestinal mucosa maintains homeostasis by renewal of epithelia, and also exhibits different properties from undifferentiated to terminally differentiated cells. We investigated differential susceptibility to genotoxin-induced cell death, based on the degree of differentiation of epithelial cel...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2008.11.120
更新日期:2009-01-23 00:00:00
abstract::Coxsackievirus A24 (CVA24) is responsible for acute hemorrhagic conjunctivitis, a highly contagious eye disease for which no prevention or treatment is currently available. We thus assessed the antiviral potential of a small interfering RNA (siRNA) targeting CVA24. HeLa cells with or without four different siRNAs comp...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2008.08.169
更新日期:2008-11-14 00:00:00
abstract::Iron overload, as a risk factor for osteoporosis, can result in the up-regulation of Hepcidin, and Hepcidin knockout mice display defects in their bone microarchitecture. However, the molecular and genetic mechanisms underlying Hepcidin deficiency-derived bone loss remain unclear. Here, we show that hepcidin knockdown...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.05.118
更新日期:2016-07-15 00:00:00
abstract::Inositol 1,2,3,5,6-pentakisphosphate (Ins(1,2,3,5,6)P5) 5-phosphatase present in fetal calf thymus has been partially purified. This enzyme was inhibited dose-dependently by different thiol modifiers like N-ethylmaleimide (NEM), p-chloromercuribenzene sulfonate (PCMBS), diamide, and phenylarsine oxide (PAO). The inhib...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.7629
更新日期:1997-11-07 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(87)91001-1
更新日期:1987-09-15 00:00:00
abstract::The ZntR protein from Escherichia coli is a member of the MerR-family of transcriptional regulatory proteins and acts as a hyper-sensitive transcriptional switch primarily in response to Zn(II) and Cd(II). The binding of metal-ions to ZntR initiates a mechanism that remodels the cognate promoter, increasing its affini...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(02)02660-8
更新日期:2002-12-06 00:00:00
abstract::Dietary phosphate restriction produces an adaptive increase in renal tubular Na/Pi cotransport. A similar adaptation occurs during phosphate depletion in opossum kidney cells, a continuous line of cultured renal epithelial cells. We investigated the cellular changes associated with adaptation to phosphate depletion in...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1995.2602
更新日期:1995-11-02 00:00:00
abstract::Chloride intracellular channel protein CLIC4 is a putative organellar anion channel or channel regulator with an unusual dual cytoplasmic and integral membrane localisation. To investigate its contribution to cellular anion channel activity, the protein was overexpressed in stably transfected HEK-293 cells. Patch-clam...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(02)02199-x
更新日期:2002-09-20 00:00:00
abstract::In this report, we demonstrate that HL-60 nuclei isolated in calcium but not EGTA containing buffers specifically bind PE and express approximately 37,000 receptor sites/nucleus. Nuclear phorbol ester binding is lost by isolation in the absence of calcium, but can be repleted by the addition of partially purified prot...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(87)80523-5
更新日期:1987-04-14 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2010.10.109
更新日期:2010-12-03 00:00:00
abstract::Daudi lymphoma cells, of a line sensitive to growth inhibition by alpha interferon, showed dose-dependent plasma membrane depolarization within 10 min after exposure to natural or recombinant alpha interferons (10 to 1000 IU/ml). This biophysical change was detected flow cytometrically by measuring the intensity of fl...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(87)90725-x
更新日期:1987-07-15 00:00:00
abstract::We generated two transgenic mice carrying the adenovirus type 12 E1 region genes under control of the human renin promoter, in which the E1A and E1B genes were expressed predominantly in the kidney. Interestingly, renal transcription of the gene for mouse renin was shown to be elevated at 28 and 40 folds as compared i...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.1212
更新日期:1994-02-28 00:00:00
abstract::Matrix metalloproteinases (MMPs) have both protective and pathological roles in inflammation, and transcriptional mechanisms are important in regulating physiological levels to maintain health. Zinc-binding protein-89 (ZBP-89) is a transcription factor with roles in regulating vital cellular processes, acting through ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.02.045
更新日期:2016-03-18 00:00:00
abstract::Protein folding continues to be an important biophysical topic in molecular biology. We report the parameters for successfully refolding the guanylyl cyclase core of the ANP receptor, an allosteric homodimeric enzyme. Urea was a better chaotropic solvent than guanidine HCl, and physiological salt concentrations and pH...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.1097
更新日期:1996-07-25 00:00:00
abstract::Virosomes as membranous vesicles with viral fusion protein in their membrane are versatile vehicles for cargo delivery. The vesicular stomatitis virus glycoprotein (VSV-G) is a common fusogenic protein used in virosome preparation. This glycoprotein has been used in liposomal systems so far, but in this study, we have...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.10.054
更新日期:2021-01-01 00:00:00