Abstract:
:Branched-chain alpha-keto acid dehydrogenase (BCKDH) kinase (BDK) is responsible for the regulation of BCKDH complex, which is the rate-limiting enzyme in the catabolism of branched-chain amino acids (BCAAs). In the present study, we investigated the expression and activity of hepatic BDK in spontaneous type 2 diabetes using hyperinsulinemic Zucker diabetic fatty rats aged 9weeks and hyperglycemic, but not hyperinsulinemic rats aged 18weeks. The abundance of hepatic BDK mRNA and total BDK protein did not correlate with changes in serum insulin concentrations. On the other hand, the amount of BDK bound to the complex and its kinase activity were correlated with alterations in serum insulin levels, suggesting that hyperinsulinemia upregulates hepatic BDK. The activity of BDK inversely corresponded with the BCKDH complex activity, which was suppressed in hyperinsulinemic rats. These results suggest that insulin regulates BCAA catabolism in type 2 diabetic rats by modulating the hepatic BDK activity.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Doisaki M,Katano Y,Nakano I,Hirooka Y,Itoh A,Ishigami M,Hayashi K,Goto H,Fujita Y,Kadota Y,Kitaura Y,Bajotto G,Kazama S,Tamura T,Tamura N,Feng GG,Ishikawa N,Shimomura Ydoi
10.1016/j.bbrc.2010.02.004subject
Has Abstractpub_date
2010-03-05 00:00:00pages
303-7issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(10)00196-8journal_volume
393pub_type
杂志文章abstract::Glial precursor cells (GPCs) are present in the adult human central nervous system (CNS) and they can be isolated and maintained in culture for in vitro studies. This study analysed expression of mGluR3 and mGluR5 metabotropic glutamate receptor (mGluR) mRNAs in GPCs. A2B5 surface antigen positive GPCs were isolated u...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.04.158
更新日期:2004-06-18 00:00:00
abstract::Expression of TNF-alpha gene in the retinal pigment epithelial (RPE) cells was studied by using polymerase chain reaction (PCR). PCR for human TNF-alpha gene using complementary DNA (cDNA) of control RNA prepared from non-stimulated RPE cells failed to show expression of TNF-alpha gene. However, PCR by using cDNA prep...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(92)91300-f
更新日期:1992-09-16 00:00:00
abstract::Trophoblasts lack expression of all classical MHC antigens. Determination of the mechanism involved could provide insight into selective gene suppression and allograft tolerance. Suppression of class II expression in trophoblasts is secondary to dominant negative trans-acting factors that suppress class II transactiva...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(03)00028-7
更新日期:2003-02-14 00:00:00
abstract::The cyclin-dependent kinase (CDK) inhibitor p18 blocks progression of the cell cycle by associating with the cyclin D-dependent kinases CDK6 and CDK4. To better understand the regulation of p18 gene expression, we isolated full-length cDNA clones from a human BT-20 breast cancer cell cDNA library. These clones were th...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.8497
更新日期:1998-06-09 00:00:00
abstract::The change of transferrin receptors in regenerating rat liver cells after partial hepatectomy was demonstrated. The binding of 125I-labeled transferrin to the cells began to increase after 24 h of partial hepatectomy and reached about double that of the non-operated normal rat liver cells. A Scatchard analysis of bind...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)90240-7
更新日期:1984-06-15 00:00:00
abstract::Oculopharyngeal muscular dystrophy (OPMD) is an adult-onset dominant genetic disease caused by the expansion of a GCG trinucleotide repeat that encodes the polyalanine tract at the N-terminus of the nuclear poly(A)-binding protein (PABPN1). Presence of intranuclear inclusions (INIs) containing PABPN1 aggregates in the...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.12.078
更新日期:2006-02-17 00:00:00
abstract::Several recent studies have suggested that cancer stem cells (CSCs) are involved in resistance to gefitinib in non-small cell lung cancer (NSCLC). Oct4, a member of the POU-domain transcription factor family, has been shown to be involved in CSC properties of various cancers. We previously reported that Oct4 and the p...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.03.064
更新日期:2016-04-22 00:00:00
abstract::5-Bromodeoxyuridine (BrdU) modulates expression of particular genes associated with cellular differentiation and senescence. Our previous studies have suggested an involvement of chromatin structure in this phenomenon. Here, we examined the effect of 5-bromouracil on nucleosome positioning in vivo using TALS plasmid i...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2008.01.149
更新日期:2008-04-11 00:00:00
abstract::Insulin gene was induced into differentiated hepatic cell line. These cells released immunoreactive insulin (IRI) of which molecular weight was greater than mature insulin. The secretion of IRI was responsive to glucose concentration and inhibited by glucose metabolism antagonist, 2-deoxy glucose (2-DOG). The mRNA of ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.6445
更新日期:1997-04-17 00:00:00
abstract::Soluble endogenous inhibitory activities for glycoprotein: alpha (1-2) and alpha (1-3) fucosyltransferases are demonstrated in rat small intestinal cytosol. These inhibitors are retained on DEAE-cellulose and are eluted as two fractions A and B. Fraction B is non dialyzable, heat stable and pronase-resistant and consi...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(90)90913-8
更新日期:1990-01-30 00:00:00
abstract::Endogenous cysteine proteases were given much attention lately, as their role in a variety of pathophysiological disorders became evident. Amongst them cathepsins, which are thought to be implicated in mediation of osteoporosis, cancer progression, atherosclerosis, and many other conditions, are of considerable intere...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.05.028
更新日期:2005-07-08 00:00:00
abstract::Dopamine D4 receptor (DRD4) has received attention in terms of pathogenesis of schizophrenia and association with human personalities. We isolated the human DRD4 gene containing the 5'-flanking region and determined its sequence. Analysis of the DRD4 transcripts by 5'-RACE (5'-rapid amplification of cDNA ends) reveale...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.6770
更新日期:1997-06-18 00:00:00
abstract::During adipocyte differentiation, CCAAT/enhancer-binding protein alpha (C/EBPalpha) functions as a pleiotropic transcriptional activator of numerous adipocyte genes. The promoter of the C/EBPalpha gene has an E-box upstream of C/EBP binding site. Deletion or mutation of the E-box decreases promoter activity, suggestin...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.01.008
更新日期:2007-03-09 00:00:00
abstract::The specific binding of vitronectin to Streptococcus pyogenes is believed to play an important role in the infection process by mediating adherence of the bacteria to host cells. The domain of vitronectin involved in the interaction with S. pyogenes is unknown. In the present study, we constructed a vitronectin random...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.6663
更新日期:1997-05-19 00:00:00
abstract::The reaction of the crosslinker dibromobimane has recently revealed a functionally important internal loop structure within the skeletal myosin S1 heavy chain where Cys-522 of the 50K domain and Cys-707 (SH1) of the 20K region are spatially juxtaposed. Here we have studied the possible relevance of this topological fe...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(88)80671-5
更新日期:1988-04-15 00:00:00
abstract::Diabetic cardiomyopathy represents severe heart complications, and is the leading cause of morbidity and mortality among patients with diabetes. Although a few microRNAs (miRNAs) have been implicated in diabetes-related complications, a functional association between miRNAs and cardiac dysfunction in diabetic cardiomy...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.06.051
更新日期:2016-09-02 00:00:00
abstract::Polyclonal antibodies (pAbs) to riboflavin carrier protein (RCP) purified from human amniotic fluid were raised in two rabbits. These pAbs apart from recognizing the parent antigen, reacted significantly with chicken RCP as well. When all the 212 octapeptides overlapping by one amino acid residue and covering the enti...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1999.1239
更新日期:1999-08-27 00:00:00
abstract::The effect of various point mutations in subunits a and and c of the E. coli ATP-synthase was characterized. In each of the mutants there was no F0-dependent H+-conduction, but still an ATPase-activity comparable to wildtype activities. In addition, the subunit b could be extracted from the mutant's F0 but not from th...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)91286-5
更新日期:1984-04-30 00:00:00
abstract::A previous study showed that small G protein signaling modulator 3 (SGSM3) was highly correlated with Cx43 in heart functions and that high levels of SGSM3 may induce Cx43 turnover through lysosomal degradation in infarcted rat hearts. Here, we investigated the protective effects of kenpaullone on cardiomyocytes follo...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2018.03.166
更新日期:2018-05-05 00:00:00
abstract::Narcan, the pharmaceutical agent for the administration of naloxone, has been reported to antagonize ethanol intoxication. In addition to naloxone, Narcan contains the antioxidant esters methyl- and propylparaben. Pure naloxone and these two esters were examined for their capacity to inhibit ethanol oxidation by purif...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)91802-9
更新日期:1985-08-30 00:00:00
abstract::N-terminal of Leu-norleucinal or Leu-methioninal was modified to obtain a cell penetrative peptide inhibitor against calpain. Benzyloxycarbonyl (Z) derivatives had less active against papain than phenylbutyryl derivatives and leupeptin. Z-Leu-nLeu-H (calpeptin) was more sensitive to calpain I than Z-Leu-Met-H and leup...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(88)81355-x
更新日期:1988-06-30 00:00:00
abstract::The involvement of Na+ in insulin-secretory responses to metabolizable and nonmetabolizable amino acids known to be cotransported with Na+, were examined using islet-derived BRIN-BD11 cells. At stimulatory (16.7 mM) glucose, 10 mM of l-alanine, alpha-aminoisobutyric acid (AIB) or l-proline stimulated 1.3- to 10. 4-fol...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.9136
更新日期:1998-08-19 00:00:00
abstract::Adiponectin, an adipocyte-derived hormone, reportedly suppresses the production of TNF-alpha and IL-6 by LPS-stimulated human or porcine macrophages, and the phagocytosis of microbeads by human macrophages. In this study, we used a high molecular weight form of adiponectin purified from human plasma to examine its eff...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.07.016
更新日期:2005-09-09 00:00:00
abstract::The postmitotic nature and longevity of skeletal muscle fibers permit stable expression of any transfected gene. Direct in vivo injection of plasmid DNA, in both adult and regenerating muscles, is a safe, inexpensive, and easy approach. Here we present an optimized electroporation protocol based on the use of spatula ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2003.11.032
更新日期:2003-12-26 00:00:00
abstract::We have studied the functional properties of an alternately spliced form of sheep testicular FSH receptor cDNA that codes for a protein similar to a previously described active receptor but differs in the carboxy terminus in sequence and is also shorter by 25 residues. The receptor expressed in HEK 293 cells fails to ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.1419
更新日期:1996-09-24 00:00:00
abstract::Activins, TGF-beta superfamily members, have multiple functions in a variety of cells and tissues. Recently, additional activin beta subunit genes, betaC and betaE, have been identified. To explore the role of activin E, we created transgenic mice overexpressing human activin betaE subunit. There were pronounced diffe...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.12.205
更新日期:2006-03-10 00:00:00
abstract::The inactivation of human factor X by incubation with a reagent known to chemically modify gamma-carboxyglutamic acid to gamma-methylene glutamic acid was studied. Incubation of factor X at pH 5.0 with a preincubated formaldehyde/morpholine mixture (0.9 M/1.0 M) resulted in a progressive decrease in factor X coagulant...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)90945-8
更新日期:1984-10-15 00:00:00
abstract::p21(Waf1/Cip1) is one of the key regulatory proteins in cell cycle, terminal differentiation, and apoptosis. Its promoter was shown to be transactivated by the wild-type p53 protein as well as in a p53-independent manner. In this report, we demonstrate that E1AF, an ets-related transcription factor, activates the huma...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.6909
更新日期:1997-07-09 00:00:00
abstract::HNK-1 antibody reactive carbohydrate epitope carried by glycolipids and glycoproteins has been shown to be involved in cell to cell interactions. It has been proposed that the HNK-1 reactive 3-sulfoglucuronyl carbohydrate epitope in glycolipids may interact with a cell surface receptor to promote the biological respon...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(92)91787-q
更新日期:1992-01-31 00:00:00
abstract::Although transformed androgen receptor (AR) complexes derived from cytosol and nuclear AR complexes have been shown to bind with high affinity to nuclei and DNA, we have shown that the binding characteristics of the two receptor populations to rat ventral prostate nuclei are different. To account for these differences...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(90)91398-c
更新日期:1990-08-31 00:00:00