(1) However, an anti-nef antibody response was also seen in 5 of 93 (5%) nonrisk dermatological patients and in 4 of 37 (11%) healthy blood donors.
(2) Plasma was analyzed for NEF and 3 metabolites [hydroxynefazodone (HO-NEF), m-chlorophenylpiperazine (mCPP) and p-hydroxynefazodone (p-HO-NEF)] by a validated HPLC assay.
(3) We found that HIV Nef shares sequence and structural features with scorpion peptides known to interact with K+ channels.
(4) These observations were confirmed by in vitro experiments using purified NeFs.
(5) DEAE-transfection of viral DNA containing an open from of nef yielded virus that replicated with similar kinetics and to a similar extent in macaque peripheral blood lymphocyte (PBL) cultures as virus with a deletion or stop codon within nef.
(6) Complement-independent binding of C3 nephritic factor (NEF) to sheep erythrocytes was observed in heat-inactivated sera from patients having this autoantibody.
(7) In 31 of the sera, the specificity of anti-nef antibodies was further analysed by enzyme-linked immunosorbent assay (ELISA) with large synthetic peptides ranging from 31 to 66 amino acid residues and spanning the total sequence of nef from HIV-1.
(8) Human T-lymphocytic cell line H9 infected with the HTLV-IIIB isolate of human immunodeficiency virus type 1 (HIV-1) synthesizes two forms of the Nef protein (p25 and p27) that differ both in molecular weight and charge.
(9) The recombinant Nef protein was purified to near homogeneity by DEAE-Sephacel, phenyl-Sepharose 4B, blue-Sepharose, and Sephadex G-150 column chromatography.
(10) Earlier studies indicated nef to be a negative regulatory factor for viral transcription, whereas more recent studies report evidence against this original hypothesis.
(11) Absence of anti-nef antibodies was associated with symptomatic HIV infection.
(12) The effects of Nef on the transmembrane potential were studied in rabbit sinoatrial nodes and the clusters of cultured cardiac myocytes from neonatal rats.
(13) The type 1 human immunodeficiency virus (HIV-1) encodes a 27-kDa protein termed Nef (negative factor).
(14) Surprisingly, CTL specific for regulatory, non-structural nef protein appear to be a major constituent of the human immune response to HIV.
(15) Determination of the B-cell epitopes of the nef molecule encoded by the human immunodeficiency virus type 1 (HIV-1) was undertaken using a set of six synthetic peptides.
(16) In contrast, the extent and the appearance of nef-specific antibodies during the course of infection varied considerably between individual animals.
(17) The functions of yet other viral genes (nef, vpt) remain unclear.
(18) All of these anti-nef positive sera also contained antibodies directed against viral structural proteins.
(19) The results showed that the vascular selectivity values of Ver, Nef, and Tet were 1.15, 0.32, and 0.20, respectively in WKY and 0.80, 0.24, and 0.10, respectively in SHR.
(20) Recombinant antigens containing all or parts of the HIV-1 proteins p24, Nef and gp41 and HIV-2 gp36 have been purified and used to develop a rapid immunoassay to detect and differentiate between HIV-1 and HIV-2 antibodies in a single test.
Nep
Definition:
(n.) Catnip.
Example Sentences:
(1) In contrast to the intact endothelial monolayers, in homogenates additional kininase activity was found which was not affected by either ACE and NEP inhibitors nor by amastatin and MGTA.
(2) These data indicate that mammalian tachykinins induce the release of NCA from BBEC and that NEP modulates these effects.
(3) The nuclear masses are known as (1) the area lateralis hypothalami (ALH), (2) the nucleus entopeduncularis (nEp), (3) the nucleus semilunaris accessorius (nSA), (4) the nucleus ventromedialis hypothalami (nVmH), and (5) the posterolateral portion of the zona incerta (ZI).
(4) The effects of the neutral metalloendopeptidase (NEP) inhibitor, thiorphan, and the angiotensin converting enzyme (ACE) inhibitor, captopril, on airway responses to SP5-11 were examined in order to test the hypothesis that differences in degradation of SP and SP5-11 contribute to the difference in airway responsiveness to the two peptides.
(5) These results suggest that degradation of NKA and NKB by NEP but not by ACE is an important determinant of the bronchoconstriction induced by these peptides.
(6) By cleaving and thus inactivating tachykinins released from sensory nerves, NEP limits the actions of these peptides.
(7) We gave phosphoramidon to inhibit NEP and enalapril maleate or captopril to inhibit ACE.
(8) The effects of neutral endopeptidase inhibition (NEP-I) were studied in 6 conscious sheep with heart failure (HF) induced by rapid ventricular pacing for 7 days.
(9) The present work examined the susceptibility of these novel peptides to hydrolysis by various purified exo- and endo-peptidases including endopeptidases 24.11 (NEP), 24.15, 24.16, angiotensin-converting enzyme, leucine aminopeptidase and carboxypeptidase A. NEP attacked MCH at three sites of the molecule with an apparent affinity of about 12 microM and a kcat.
(10) On the other hand, transient or enhanced expression of NEP is observed during the development of several organs such as the sensory organs, the heart and the major blood vessels, the intestine, the bones and the genital tubercle.
(11) These studies confirm the presence of neutral endopeptidase (NEP) in the nuchal ligament of the fetal calf.
(12) Regional haemodynamic responses to atrial natriuretic peptide (ANP, 0.5 nmol kg-1) or proendothelin-1 [1-38] (1.0 nmol kg-1) were assessed in the same conscious Long Evans rats before and 20 min after administration of the novel neutral endopeptidase (NEP) inhibitor, SQ 28,603 (50 mg kg-1, i.v.).
(13) The activity of NEP, measured with an enzymatic fluorimetric method employing N-dansyl-D-alanyl-glycyl-L-4-nitrophenylalanyl-glycine as a synthetic substrate, was 18 times and eight times higher in the outer stripe of the medulla and inner cortex than in the outer cortex (OC).
(14) There were no significant differences in apparent volume of distribution, elimination half-life, and elimination clearance (CIe) for nEp and rEp in intact dogs.
(15) Also examined were the effects of inhibitors of neutral endopeptidase (NEP) and angiotensin-converting enzyme (ACE).
(16) This binding was displaced in a dose-dependent manner by NEP inhibitors.
(17) Using NEP-expressing MDCK cells and episcopic fluorescence microscopy, a specific labeling was obtained with 100 nM FTI which was completely displaced by 10 microM HACBOGly, a specific and potent inhibitor of NEP.
(18) We concluded that, although covalent bonds appear to be cleaved in NEP by papain, its activity and structure are sustained by S-S bridges.
(19) To determine the distribution of NEP, a possible regulatory enzyme for the neuropeptide-induced leukocyte activation, among human leukocytes, we investigated the enzymatic activity of NEP in each cell type of human peripheral blood leukocytes.
(20) N-ethyl piperidinyl diaminodithiol (NEP-DADT), complexed with 99mTc has been developed as an agent for the measurement of brain blood flow using SPECT.