ライフサイエンスコーパス: 14C

1 14C dates are now available for the first use of hierogl

2 14C of CO was measured to better understand this process

3 14C urea breath test (14C-UBT) was performed 4 weeks aft

4 14C-deoxyglucose autoradiography was performed 45 min af

5 14C-Labeled cytochrome c is deposited with 2,5-dihydroxy

6 14C-labeled male skeletal muscle precursor cells were im

7 14C-Labelled amino acids were used to investigate the ef

8 [14C]-Resveratrol binds to commercially purified integrin

9 [14C]7alpha-OOH radioactivity accumulated much faster in

10 [14C]ALA uptake in neonatal rat astrocytes was inhibited

11 [14C]Nicotinamide incorporation assays in M. tuberculosis

12 evidence for persistence until about 24,000 14C years bp.

13 e Palaeolithic occupation until about 28,000 14C years bp; and third, more contentious evidence for p

14 generally accepted estimates of about 32,000 14C years bp for the uppermost Mousterian levels; second

15 try radiocarbon (14C)-dated to 34,000-36,000 14C years B.P., the Oase 1 mandible is the oldest defini

16 led [1'-3H], [2'-3H], [1'-14C], [9-15N], [1'-14C, 9-15N] and [5'-3H2]inosines gave intrinsic KIE valu

17 ntrinsic KIEs were obtained for [1'-3H], [1'-14C], [2'-3H], [4'-3H], [5'-3H(2)], [9-15N] and [Me-3H(3

18 Intrinsic KIEs from [1'-3H], [1'-14C], [2'-3H], [5'-3H], and [9-15N] inosines were 1.221,

19 Isotopically labeled [1'-3H], [2'-3H], [1'-14C], [9-15N], [1'-14C, 9-15N] and [5'-3H2]inosines gave

20 The primary intrinsic [1'-14C] and [9-15N] KIEs indicate a highly dissociative SN1

21 The [1'-14C] KIE suggests significant nucleophilic participation

22 nthesized and enzymatically coupled with [1'-14C] ribose to give isotopically labeled adenosines as A

23 The release of AA (AA 1-14C) was measured with and without ATP, ATP inhibitors,

24 rmeant, radioactive thiol reagent N-[ethyl-1-14C]ethylmaleimide ([14C]NEM) is used to detect site-dir

25 plied the quantitative autoradiographic L-[1-14C]leucine method to the in vivo determination of regio

26 itoring the release of 14CO2 from labeled [1-14C]-2-oxoglutarate.

27 GO-deficient mutant seedlings metabolized [1-14C]glycine similarly to produce [14C]serine and 14CO2 i

28 Indeed, incorporation of [1-14C]acetate into fatty acids in vivo showed that the fab

29 2-14C]pyruvate as precursor, [32P]Pald or [1-14C]Pald was obtained, respectively.

30 Providing [1-14C]glycolate to leaf tissue of go1 mutants in darkness

31 sfer of acyl groups from phospholipids to 1-[14C]palmitoyl-2-lyso-phosphatidylcholine.

32 The carbon-14 (14C) content of methane (14CH4) should distinguish betwe

33 n of the increase of the ratio of carbon-14 (14C) to carbon in the atmosphere and surface ocean durin

34 activity was estimated using the carbon-14 [14C]erythromycin breath test (ERMBT) before surgery and

35 ts S432 mutant and the conversion of 17beta-[14C]estradiol by S432G-UGT1A7 but not by UGT1A7.

36 By using [beta-32P]ATP or [2-14C]pyruvate as precursor, [32P]Pald or [1-14C]Pald was

37 s using the quantitative autoradiographic 2-[14C]deoxyglucose (2-DG) method.

38 Sf9 cell mitochondria, namely 1-palmitoyl-2-[14C]linoleoyl-phosphatidylcholine:monolysocardiolipin li

39 2[14C]deoxyglucose was used to assess MGU.

40 e 6-phosphate, showed a large decrease in 3H:14C ratio along this pathway from left to right.

41 that generates a remarkably wide range of 3H:14C ratios among the various proposed precursors.

42 radiocarbon calibration beyond about 21,500 14C years bp and the absence of a master calendar chrono

43 We used 5704 14C, 10Be, and 3He ages that span the interval from 10,0

44 id allowed isolation of 14C-glutamine (63%), 14C-glutamate (14%), and a compound tentatively identifi

45 eceramic house (3,431 +/- 45 to 3,745 +/- 65 14C bp or approximately 3,600 to 4,000 calibrated years

46 of [3H]vinblastine, [3H]dolastatin 10, or [8-14C]GTP to tubulin.

47 se the Clovis time range to 11,050 to 10,800 14C yr B.P.

48 were fed traces of D-[1-(3)H]galactose and a 14C-labelled hexose (e.g. D-[U-14C]fructose) in the pres

49 This probe, which contains a 14C-isotopic label in the choline methyl groups and a ph

50 ere able to identify [14C]pyruvic acid in a [14C]alanine-labeled preparation of purified LPXTGase, wh

51 sponsible for the majority of the activity ([14C]putrescine-binding assay) in whole brain and liver h

52 -14C]adenine dinucleotide 2(')-phosphate([Ad-14C]NADPH) is presented.

53 Adjusted 14C dates and a reevaluation of the existing Clovis date

54 radioactive methods based on binding of ADP-[14C]glucose to O-(diethylaminoethyl)-cellulose paper.

55 glucose 1-phosphate as a substrate, the ADP-[14C]glucose formed as a product is converted to [14C]gly

56 y of the carbon isotope composition (13C and 14C) of dissolved inorganic carbon and three size-fracti

57 n and mouse genes are located at 14q11.2 and 14C, respectively, and are composed of two exons.

58 ver, sediment transport constraints, 4He and 14C dates, plunge pools, and scoured rock indicate that

59 increasing size (14C-mannitol, 51CrEDTA, and 14C-inulin).

60 was recovered in 14C-pyroglutamate (88%) and 14C-glutamine (11%).

61 atocytes indicated that both 14C-18:1n-9 and 14C-20:5n-3 are rapidly assimilated into neutral and pol

62 atmospheric origin for carbonate carbon, and 14C dating indicates the predominance of modern carbon i

63 The basal efflux of both 3H-glutamate and 14C-GABA increased by 17+/-2% and 12+/-2% from DKO nerve

64 3H-glutamate and 14C-gamma-amino-butyric-acid (GABA) release from isolate

65 ity studies indicated that 14C-glutamine and 14C-pyroglutamate are not subject to significant non-enz

66 ice using calcein fluorescence-quenching and 14C-glycerol-uptake assays, respectively.

67 mitochondrial matrix volumes using 3H2O and [14C]sucrose.

68 7B on the cellular pharmacology of 64Cu and [14C]CBDCA was investigated in more detail using one cell

69 86Rb+ and [14C]sucrose had increased permeability 20 min after BBB

70 ion of ACOX1, p-ACC, beta-HAD activity, and [14C]palmitate oxidation) and eliminated the accumulation

71 C-fos immunohistochemistry and [14C]2-deoxyglucose imaging identified brain structures i

72 btained with c-Fos immunohistochemistry and [14C]2-deoxyglucose uptake implicate a prominent involvem

73 LDL and CMs, dual-labelled with [3H]TAG and [14C]cholesterol.

74 ad of olive oil containing [3H]triolein and [14C]cholesterol, the rate of [3H]triolein absorption was

75 ce experiments with [13C]formate, as well as 14C-labeling experiments, demonstrated production of lab

76 The identification of actin and filamin as [14C]carboplatin-binding proteins and decreased expressio

77 P. islandicum cultures assimilated 14C-labeled acetate in the presence of H2 and yeast extr

78 302A-PhaC on SDS-PAGE have been observed at [14C]-HB-CoA to enzyme (S/E) ratios between 5 and 100.

79 tical blanks and controls allowed background 14C measurements to be assessed and potential sources of

80 f background carbon mass (mc) and background 14C level (Fc) from the high-throughput Zn reduction met

81 peptides generated by proteasomes from beta-[14C]casein and studied in HeLa cell extracts the degrada

82 nd Org-24598 were tested and shown to block [14C]glycine uptake with expected IC50 values of 37.5+/-4

83 aration of organic standards containing both 14C and 3H in 2-mg organic samples demonstrated that thi

84 g of primary hepatocytes indicated that both 14C-18:1n-9 and 14C-20:5n-3 are rapidly assimilated into

85 etate uptake was unaffected by ischemia but [14C]acetate uptake increased 15-24% (P<0.05; n=12-15/gro

86 hesis was completely blocked as measured by [14C]galactose labeling.

87 tion of L. interrogans in medium containing [14C]palmitic acid, confirming that it is a lipoprotein.

88 appears to be elevated by direct cosmogenic 14C production in ice.

89 In agreement with these localization data, [14C]FIAU was efficiently transported into the mitochondr

90 ted, i.e., contamination with modern or dead 14C, isotopic fraction effects, etc.

91 By measuring nuclear bomb test-derived 14C in genomic DNA, we determined the turnover rates of

92 No detectable 14C-acyl-CoA intermediates were formed during 14C-laurat

93 4C-acyl-CoA intermediates were formed during 14C-laurate elongation, whereas 14C-acyl-ACP accumulated

94 completely blocked incorporation of either [14C]choline or 32Pi into phosphatidylcholine.

95 pea chloroplasts were also able to elongate 14C-FAs (<or=16 carbons) in the light.

96 Two isotopic exchanges at equilibrium ([14C]1-naphthol <=>[14C]1-naphthyl sulfate and[35S]PAPS<=

97 hiol reagent N-[ethyl-1-14C]ethylmaleimide ([14C]NEM) is used to detect site-directed alkylation of e

98 mg L(-1) trimethoprim for 48 h and then fed 14C-labeled algae.

99 When aseptic root cultures were fed [14C]-DCA, compared with wild types, the ugt72B1 plants s

100 Cerebral regional blood flow (14C-iodoantipyrine) and O2 consumption (cryomicrospectro

101 For 14C-cellobiose, radioactivity was greatest for G2; subst

102 For 14C-cellulose, radioactivity was greatest for G5; lower

103 samples opens up a range of applications for 14C AMS studies.

104 lar beta-glucan radioactivity resulting from 14C-labeled substrates showed that uptake is different f

105 xchanges at equilibrium ([14C]1-naphthol <=>[14C]1-naphthyl sulfate and[35S]PAPS<=>[35S]1-naphthyl su

106 eled male myoblasts into female mice hearts, 14C measurement showed that 39.2 +/- 3.0% of the grafted

107 que to D-alanine), we were able to identify [14C]pyruvic acid in a [14C]alanine-labeled preparation o

108 If 14C-UBT was negative, it was repeated after every 12 wee

109 If 14C-UBT was positive, endoscopy was repeated with biopsi

110 Correspondingly, SC2A cells imported [14C]7alpha-OOH more rapidly.

111 tion in At4g14070 (AAE15) was reduced 80% in 14C-laurate elongation into 16- and 18-carbon FAs.

112 ined by geomagnetically modulated changes in 14C production rate together with plausible changes in d

113 icrodialysis, radioactivity was recovered in 14C-pyroglutamate (88%) and 14C-glutamine (11%).

114 AtPLT5 expression also resulted in 14C-labeled substrate uptake in oocytes, indicating that

115 14C]ceramide with a concomitant decrease in [14C]sphingomyelin was detected.

116 A substantial elevation in [14C]ceramide with a concomitant decrease in [14C]sphingo

117 y for the analysis of chitin cross-links in [14C]glucosamine-labeled cell walls, involving solubiliza

118 s from PEPT2-/- mice had a 62% reduction in [14C]ALA uptake and a 92% reduction in [3H]carnosine upta

119 This organism readily incorporated [14C]choline into phosphatidylcholine, indicating the pre

120 tments showed that cytochalasin D increased [14C]dextran association with apical membranes from stimu

121 les overexpressing SWEET17 showed increased [14C]Fru uptake compared with the wild type.

122 ospermine derivative 26 was shown to inhibit 14C-spermine uptake (IC50 approximately 10 microM), whic

123 sition of a bolus of intravenously injected [14C]oleate was markedly reduced, showing altered lipid p

124 record of the Cariaco Basin by means of its 14C series, circumventing calendar age model and correla

125 ears before the present (approximately 35 ka 14C B.P.).

126 ucose transporter 1 (GLUT-1) and GLUT-3 in L-14C-DHA transport and to evaluate the effects of physiol

127 as completely unable to transport 5 microM L-14C-glutamate and showed a large reduction (approximatel

128 Binding of L-14C-aspartate or L-14C-glutamate was strongly out-compet

129 ion (approximately 20-fold) in the rate of L-14C-aspartate transport compared with the wild type.

130 hysiologically relevant oxygen tensions on L-14C-DHA transport.

131 Binding of L-14C-aspartate or L-14C-glutamate was strongly out-competed by excess unlabe

132 L-[14C]Leucine, but not L-[14C]serine or [3H]glycine, was t

133 L-[14C]Leucine, but not L-[14C]serine or [3H]glycine, was transferred from the mate

134 Transfer of L-[14C]serine or L-[14C]leucine, and [3H]glycine, were meas

135 Transfer of L-[14C]serine or L-[14C]leucine, and [3H]glycine, were measured in the absen

136 Both l-Val/l-[14C]Val exchange studies and MALDI-TOF support a reversi

137 Incubations with L-[14C]Thr and [36Cl-] as well as MS of the released produc

138 ignificantly higher uptake of radio-labeled [14C]2-fluoro-2-deoxyglucose (2-DG) in the preoptic area

139 Of the lipoproteins, HDL had the lowest 14C enrichment.

140 orter system to detect formation of luminal [14C]palmitoyl-CoA.

141 In this report, two major [14C]carboplatin-binding proteins were identified as fila

142 Studies directly measuring [14C]-glutamate uptake in HEC slices indicate that TNF al

143 -[methyl-3H]methionine or S-adenosyl-[methyl-14C]methionine stimulates the labeling of small molecule

144 for isoeugenol and 54.5 microm for S-[methyl-14C]adenosyl-l-methionine.

145 , we have obtained a cDNA encoding S-[methyl-14C]adenosyl-l-methionine:t-anol/isoeugenol O-methyltran

146 te CBDCA content upon exposure to 50 microM [14C]CBDCA.

147 nto ventricular CSF with reference molecules 14C-mannitol and blue dextran.

148 Uptake and concentration of myo-[14C]inositol is rapid in Mycobacterium smegmatis and lea

149 well as some of the adjoining loops, with N-[14C]ethylmaleimide (NEM) or methanethiosulfonate ethylsu

150 RRR-alpha-tocopheryl acetate (with 101.5 nCi 14C), and its fate in plasma, plasma lipoproteins, urine

151 rac-alpha-tocopheryl acetate (with 99.98 nCi 14C).

152 Net [14C]acetate uptake was unaffected by ischemia but [14C]a

153 New 14C dates from archaeological sites in Oaxaca, Mexico, s

154 with time series of the cosmogenic nuclides 14C and 10Be as well as North Atlantic drift ice.

155 uggests that the atmosphere to surface ocean 14C to C ratio difference was not substantially differen

156 The amount of 14C-label provides an estimate of the surviving cell num

157 Comparison of 14C ages for coexisting wood and planktic foraminifera f

158 lso indicated that a significant fraction of 14C-20:5n-3 was elongated to 22:5n-3.

159 lls in vivo, based on their incorporation of 14C during a peak in atmospheric levels of this isotope

160 The incorporation of 14C into lipid from [U-14C]glucose was decreased in the

161 tic glucokinase expression, incorporation of 14C-glucose into lipids, and hepatic VLDL-triglyceride r

162 Injection of 14C-glutamine at the site of microdialysis followed by m

163 Following injection of 14C-pyroglutamate and microdialysis, radioactivity was r

164 l cerebral spinal fluid allowed isolation of 14C-glutamine (63%), 14C-glutamate (14%), and a compound

165 The measured half-lives of 14C-labeled Mrp2 in control, pregnant, and PCN-treated r

166 increased the growth rate, the proportion of 14C recovered in oil relative to protein, and the fixati

167 ecific activities of microgram quantities of 14C-labeled proteins.

168 carboxylic acids possessing a broad range of 14C ages.

169 t not under low light, we observe release of 14C label from starch, indicating that its synthesis and

170 r potassium depolarization-evoked release of 14C-GABA was increased by 32+/-4% and 29+/-5%, respectiv

171 A series of 14C measurements in Ocean Drilling Program cores from th

172 hod could easily be adapted for syntheses of 14C-labeled NADH, NADP(+), or any nicotinamide cofactors

173 in FAs (>or=20 carbons) but not synthesis of 14C-unsaturated 18-carbon or 16-carbon FAs.

174 ed 1 week following exposure using uptake of 14C-labeled 2-deoxyglucose (2DG) in quiet.

175 5 in mammalian cells increased the uptake of 14C-oleate.

176 l was provided by the finding that uptake of 14C-urate was significantly inhibited in the presence of

177 he proton and/or sodium-driven transport of (14C)-citrate anion, as well as the organic monovalent ca

178 Based on the administration of [14C]M1dG (22 microCi/kg) to Sprague-Dawley rats (n=4), w

179 The total amount of [14C]cholesterol excreted in the feces was 45% higher (p

180 Analysis of [14C]glycerol kinetics indicated reduced blood-to-SC tran

181 The plasma appearance of [14C]cholesterol was found to be 75% lower (p < 0.0005) i

182 ither CYP2E1 levels nor covalent binding of [14C] CCl4-derived radio-label differed between the group

183 beta3 prepared from MCF-7 cells; binding of [14C]-resveratrol to the beta3, but not to the alphaV mon

184 residues is also determined by blockage of [14C]NEM labeling with membrane-impermeant thiol reagents

185 ity measures derived from the comparison of [14C]-2-deoxyglucose glomerular activity pattern data yie

186 the sensitivity at lower concentrations of [14C]glucose 1-phosphate without compromising the blanks

187 ippocampal tissue (percentage conversion of [14C]DHEA to [14C]7alpha-hydroxyDHEA) was decreased selec

188 red adipocytes increased both conversion of [14C]glucose to CO2 and mitochondrial oxygen consumption.

189 N(2)O exposure also increases conversion of [14C]L-arginine to [14C]L-citrulline in homogenates prepa

190 esis and 5-P-[14C]ribosyl-P-P as a donor of [14C]Araf for arabinan synthesis, we now demonstrate sequ

191 At 10 min after implantation of [14C]thymidine-labeled male myoblasts into female mice he

192 ecombinant Cps2E catalyzed incorporation of [14C]Glc from UDP-[14C]Glc into a lipid fraction in a Cps

193 were exposed to 2 mM GlcN, incorporation of [14C]glucose into glycogen doubled by 10 min (t(1/2) of <

194 tudied after a 42-h fast during infusion of [14C]oleate and a lipid emulsion containing [3H]triolein;

195 ular uptake of AF-ALN or internalization of [14C]zoledronate but prevented the inhibitory effect of a

196 The labeling of [14C]ceramide was completely abrogated by the SPT inhibit

197 When fed normal chow, oxidation of [14C]palmitate in adipocytes of Acc2-/- mutant mice was a

198 was assessed by in situ brain perfusion of [14C]sucrose (paracellular diffusion marker).

199 e peptide/alpha2 complex in the presence of [14C]-labeled cytidine 5'-diphosphate substrate and ATP a

200 nd with liver microsomes in the presence of [14C]potassium cyanide.

201 Single turnover reactions of [14C]ATP and phosphate, carried out in the presence of eq

202 ecombinant UDP-Galp mutase as the source of [14C]Galf for galactan biosynthesis and 5-P-[14C]ribosyl-

203 Stoichiometry of [14C]ADP trapping by vanadate was 1 mol/mol P-glycoprotei

204 d to permit measurement of the transport of [14C]palmitoylcarnitine into microsomes through the use o

205 ate were studied along with the trapping of [14C]ADP in presence of vanadate.

206 er, results in a complete loss of uptake of [14C]-Neu5Ac.

207 apped quantitatively by measuring uptake of [14C]2-deoxyglucose evoked by each odorant.

208 enhanced macrophage HDL binding, uptake of [14C]cholesteryl oleate/HDL, and efflux of [3H]cholestero

209 In these microplates uptake of [14C]glycine was time dependent and saturable with a Mich

210 BBB uptake of [14C]sucrose (a membrane impermeant marker) and [3H]codei

211 d a significantly increased brain uptake of [14C]sucrose at 1, 3, 6 and 48 h (139+/-9%, 166+/-19%, 13

212 Only [14C]sucrose showed regional variation in permeability af

213 lse-labeled with radioactive isotope (35S or 14C) in cells at discrete cycle stages and then resolved

214 fied after metabolic labeling with [3H]- or [14C]acetate.

215 use of radioactive isotopes like [57Co]- or [14C]-cyanocobalamin.

216 in or transferrin), and uptake of AF-ALN or [14C]zoledronate was inhibited by dansylcadaverine, indic

217 and rabbit osteoclasts; uptake of AF-ALN or [14C]zoledronate was stimulated by the presence of Ca2+ a

218 led amino acids, such as [35S]methionine or [14C]leucine, has been superseded by the addition of anti

219 ng studies with [35S]cysteine/methionine or [14C]NaHCO3, polysomal distribution analyses and ribonucl

220 [14C]Galf for galactan biosynthesis and 5-P-[14C]ribosyl-P-P as a donor of [14C]Araf for arabinan syn

221 1,2-dimyristoyl-sn-glycero-3-phosphocholine (14C) bilayers in the form of oriented multilayers.

222 s are more likely associated with a positive 14C-serotonin release assay and HIT.

223 10,900 radiocarbon years before the present (14C yr B.P.).

224 Catalytic site mutants prevented [14C]ADP trapping, whereas interdomain signal communicati

225 bolized [1-14C]glycine similarly to produce [14C]serine and 14CO2 in a 1:1 ratio, suggesting that the

226 r 15 and 60 min occlusion using quantitative 14C-iodoantipyrine autoradiography.

227 y accelerator mass spectrometry radiocarbon (14C)-dated to 34,000-36,000 14C years B.P., the Oase 1 m

228 yzed by real-time polymerase chain reaction, 14C-proline incorporation, and Sircol assay.

229 Reconstructed 14C activities varied substantially during the last glac

230 r, only dexamethasone significantly reduced [14C]sucrose paracellular permeability (-231% of controls

231 rmed by the characterization of a saturable [14C]taurine uptake in JAR cells.

232 As our results show, 14C peaks were detected down to 6 cpm, which is approxim

233 We also obtained six 14C dates on charcoal from four marae.

234 nert hydrophilic solutes of increasing size (14C-mannitol, 51CrEDTA, and 14C-inulin).

235 The compound-specific 14C dating protocol was validated on a suite of ancient

236 trating the utility of the compound-specific 14C technique as a direct means of dating archaeological

237 The androgen substrate 14C-testosterone was metabolized mainly to 5alpha-dihydr

238 oblasts (HPF) were incubated with substrates 14C-testosterone/14C-4-androstenedione in the presence o

239 Our results demonstrate that tau(i) and tau(14C) capture the dynamics of contrasting fractions of th

240 The (14)C-based tau(14C) primarily reflects the dynamics of an older, stabil

241 , based on bulk soil (14)C measurements (tau(14C)) and on a 6-month laboratory soil incubation (tau(i

242 14C urea breath test (14C-UBT) was performed 4 weeks after the eradication the

243 over during an oral glucose tolerance test ([14C]glucose given with the oral glucose load and [3H]glu

244 e incubated with substrates 14C-testosterone/14C-4-androstenedione in the presence or absence of seri

245 In vitro stability studies indicated that 14C-glutamine and 14C-pyroglutamate are not subject to s

246 e of the compound-specific technique is that 14C dates obtained for individual compounds can be direc

247 includes Juniperus (C3) wood specimens that 14C date between 7.7 and 55 thousand years (kyr) B.P., p

248 Thus it was found that [14C]putrescine can replace eIF5A precursor protein as an

249 The 14C and 13C labeling of glutamate, glutamine, and aspart

250 The 14C-labeled peptides released by 20 S proteasomes could

251 a constant ratio,while no suppression of the 14C exchange rate was observed with an increase in the l

252 The GAX characteristics of the 14C-product were confirmed by digestion with a purified

253 However, in 6 patients, the 14C-UBT confirmed recurrence at 12 months.

254 f uremic toxins on CYP3A4 activity using the 14C-erythromycin breath test and the traditional phenoty

255 The [14C]glucose 1-phosphate that did not react is easily eli

256 The [14C]glycine uptake process was sensitive to membrane Na+

257 rown on a two-chamber Transwell device, the [14C]sucrose permeability coefficient and transepithelial

258 The other portion of the [14C]GAX-like polymer was resistant to proteinase K, endo

259 To this end, we used the [14C]2-deoxyglucose method to determine glomerular respon

260 rebral glucose utilization (LCGU) using the [14C]2-deoxyglucose (2-DG) method.

261 increases conversion of [14C]L-arginine to [14C]L-citrulline in homogenates prepared from whole brai

262 led to increased permeability of the BBB to [14C]-sucrose without significant changes in its initial

263 glucose formed as a product is converted to [14C]glycogen by the addition of glycogen synthase and no

264 ssue (percentage conversion of [14C]DHEA to [14C]7alpha-hydroxyDHEA) was decreased selectively in mem

265 TEER values and a selective permeability to [14C] phenytoin and the well-known paracellular marker [3

266 a marker for K+ permeability and transport, [14C]sucrose and Evans blue albumin, using a rat in situ

267 of this system also were conducted using two 14C compounds, which are herein labeled X and Y.

268 lactose and a 14C-labelled hexose (e.g. D-[U-14C]fructose) in the presence of an approximately 10(4)-

269 The incorporation of 14C into lipid from [U-14C]glucose was decreased in the PC knockdown cells.

270 1-(14)C]acetate, but stimulated that from [U-14C]glycerol into acyl lipids.

271 of the reduced form of beta-nicotinamide [U-14C]adenine dinucleotide 2(')-phosphate([Ad-14C]NADPH) i

272 in media in which all carbon sources were [U-14C]-labeled and their conversion into CO2, oil, protein

273 atalyzed incorporation of [14C]Glc from UDP-[14C]Glc into a lipid fraction in a Cps2E-dependent manne

274 agments, and differential labeling with UDP-[14C]Galp and recombinant UDP-Galp mutase as the source o

275 Follow-up 14C-urea breath tests of all 102 patients who eradicated

276 After stopping the reaction that uses [14C]glucose 1-phosphate as a substrate, the ADP-[14C]glu

277 a radioactive single time point assay using 14C-(C-1)-labeled L-serine and cysteamine as substrates,

278 lowed normal Michaelis-Menten kinetics using 14C- and BODIPY-labeled C12-ceramide as substrates.

279 catalyzed ceramide synthesis in vitro using 14C-labeled C12 fatty acid and sphingosine as substrates

280 Using [14C]putrescine as an acceptor, various spermidine analog

281 s able to catalyze ceramide synthesis using [14C]lauric acid and sphingosine as substrates.

282 rified MynC was demonstrated in vitro using [14C]acetyl-CoA.

283 When [14C]-cytochrome c is no longer detected by MALDI MS, app

284 When [14C]6-oxo-M1dG was administered to Sprague-Dawley rats,

285 When [14C]GA53 was fed to spinach plants, more GA53 was conver

286 ormed during 14C-laurate elongation, whereas 14C-acyl-ACP accumulated to 2.3 microm.

287 we present an alternative approach, in which 14C dates of interest are mapped directly onto the palae

288 the 13C-labeling time courses alone and with 14C confirmed significant glial TCA cycle activity (V(PD

289 feces) obtained from rats orally dosed with 14C-loratadine.

290 When Arabidopsis leaves were incubated with 14C-FAs with <or=16 carbons, the label appeared in elong

291 vested from BMMO that had been infected with 14C-labelled BCG.

292 ed patients were observed for 12 months with 14C-UBT to assess H. pylori status.

293 ts (n = 23) were infused simultaneously with 14C-bicarbonate and [1-13C]glucose for up to 1 hr.

294 n, and saturation capacity, were tested with 14C-labeled cytochrome c as well as with mixtures of mul

295 inese hamster ovary cells were labeled with [14C]serine, a substrate of serine palmitoyltransferase (

296 ea chloroplasts incubated in the light with [14C]acetate gave a linear accumulation of FFA.

297 n the feeding studies were carried out with [14C]-TCP, rates and routes of metabolism were identical

298 port that incubation of D302A-PhaCPhaE with [14C]-HB-CoA results in detection, for the first time, of

299 cerophosphocholine in cells prelabeled with [14C]choline.

300 cerophosphocholine in cells prelabeled with [14C]choline.