PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16935321-5 2006 A statistically significant relationship between dry weight soil concentrations and organic carbon content was determined for all PCB congeners in the surface layers (0-1 cm) but not in the deeper layers (4-5 cm, 9-10 cm). Carbon 92-98 pyruvate carboxylase Homo sapiens 130-133 16630644-3 2006 We examined the chemical reactivity of AC-supported iron as a catalyst to decompose PCB-153, and varied three decomposition parameters (temperature, time and iron concentration) under an atmosphere of either air or N(2). Carbon 39-41 pyruvate carboxylase Homo sapiens 84-87 17022395-4 2006 The concentrations of seven PCB congeners were determined in the dissolved and particulate organic carbon (POC) phases. Carbon 99-105 pyruvate carboxylase Homo sapiens 28-31 17051780-0 2006 Nanometer-scale chemical heterogeneities of black carbon materials and their impacts on PCB sorption properties: soft X-ray spectromicroscopy study. Carbon 50-56 pyruvate carboxylase Homo sapiens 88-91 15773496-0 2005 Comment on "addition of carbon sorbents to reduce PCB and PAH bioavailability in marine sediments: physicochemical tests". Carbon 24-30 pyruvate carboxylase Homo sapiens 50-53 16475328-3 2005 We used bacterial biovolume and a conversion factor to calculate bacterial carbon, which was used to normalize PCB concentrations. Carbon 75-81 pyruvate carboxylase Homo sapiens 111-114 16475328-4 2005 The range of total PCB concentrations in the bacterial fraction (61-337 ng/g organic carbon; OC) was similar, but generally higher than that of the total particulate fraction (36-324 ng/g OC). Carbon 85-91 pyruvate carboxylase Homo sapiens 19-22 15984801-0 2005 Congener-specific carbon isotopic analysis of technical PCB and PCN mixtures using two-dimensional gas chromatography-isotope ratio mass spectrometry. Carbon 18-24 pyruvate carboxylase Homo sapiens 56-59 16856737-1 2006 The sorption kinetics and concentration of polychlorinated biphenyls (PCBs) in historically polluted sediment is modeled to assess a remediation strategy based on in situ PCB sequestration by mixing with activated carbon (AC). Carbon 214-220 pyruvate carboxylase Homo sapiens 70-73 15922398-3 2005 An activated carbon dose of 2% of the dry sediment mass lowered total aqueous PCB concentrations by more than 95% after 1 month of treatment and more than 98% after 6 months. Carbon 13-19 pyruvate carboxylase Homo sapiens 78-81 15922398-4 2005 Aqueous PCB concentrations remained below detection limits following 18 months of sediment-carbon contact in slowly mixed systems. Carbon 91-97 pyruvate carboxylase Homo sapiens 8-11 15922398-6 2005 These tests show that PCB sequestration with activated carbon improves with contact time and is not diminished by prolonged mixing with sediment. Carbon 55-61 pyruvate carboxylase Homo sapiens 22-25 15922398-7 2005 Desorption studies confirmed the sequestration, in which 74% of the total PCB mass could be desorbed from untreated Lake Hartwell sediment within 30 days as compared to only 7% after activated carbon treatment for 6 months. Carbon 193-199 pyruvate carboxylase Homo sapiens 74-77 15922398-8 2005 We compare these observations with marine sediment from San Francisco Bay and propose a conceptual model to rationalize how sediment properties relate to the reduction in aqueous PCB concentrations during activated carbon treatment. Carbon 215-221 pyruvate carboxylase Homo sapiens 179-182 15866279-4 2005 For instance, the concentration of one of the most abundant congeners, PCB 52, was typically on the order of 0.1-0.3 pg l(-1) in the dissolved (melted) phase of the ice, snow, IIW, and underlying seawater while its particulate organic-carbon (POC) normalized concentrations were around 1-3 ng gPOC(-1) in the ice, snow, IIW, and IRS. Carbon 235-241 pyruvate carboxylase Homo sapiens 71-74 15543751-0 2004 Addition of carbon sorbents to reduce PCB and PAH bioavailability in marine sediments: physicochemical tests. Carbon 12-18 pyruvate carboxylase Homo sapiens 38-41 15543751-4 2004 Sediment treated with 3.4 wt % activated carbon showed 92% and 84% reductions in aqueous equilibrium PCB and PAH concentrations, 77% and 83% reductions in PCB and PAH uptake by semipermeable membrane devices (SPMD), respectively, and reductions in PCB flux to overlying water in quiescent systems up to 89%. Carbon 41-47 pyruvate carboxylase Homo sapiens 101-104 15543751-4 2004 Sediment treated with 3.4 wt % activated carbon showed 92% and 84% reductions in aqueous equilibrium PCB and PAH concentrations, 77% and 83% reductions in PCB and PAH uptake by semipermeable membrane devices (SPMD), respectively, and reductions in PCB flux to overlying water in quiescent systems up to 89%. Carbon 41-47 pyruvate carboxylase Homo sapiens 155-158 15543751-4 2004 Sediment treated with 3.4 wt % activated carbon showed 92% and 84% reductions in aqueous equilibrium PCB and PAH concentrations, 77% and 83% reductions in PCB and PAH uptake by semipermeable membrane devices (SPMD), respectively, and reductions in PCB flux to overlying water in quiescent systems up to 89%. Carbon 41-47 pyruvate carboxylase Homo sapiens 155-158 12927115-4 2003 T, E(LUMO) (the energy of the lowest unoccupied molecular orbital), molecular size or average molecular polarizability (alpha), and the net atomic charges on chlorine, hydrogen and carbon atoms of PCB molecules, are major factors governing logK(OA). Carbon 181-187 pyruvate carboxylase Homo sapiens 197-200 18969556-10 2004 An acidic silica column combined with an activated carbon column allows the separation of PCDD/F and dioxin-like PCB in two different fractions, PBB 169 is completely eluted in the dioxin fraction and PBB 77 is distributed between the PCB and dioxin fraction. Carbon 51-57 pyruvate carboxylase Homo sapiens 113-116 9729766-6 1998 Biochemical and physiological characterization of carbon metabolic mutants, along with the analysis of cloned genes and their corresponding gene products, have greatly advanced our understanding of the function of enzymes such as citrate synthase, oxoglutarate dehydrogenase, pyruvate carboxylase and malic enzymes. Carbon 50-56 pyruvate carboxylase Homo sapiens 276-296 12146632-6 2002 Increasing Q(Cl)+, (the most positive net atomic charges on a chlorine atom) and Q(C)- (the largest negative net atomic charge on a carbon atom) values of PCBs results in decreasing lg K(OA) values, implying possible intermolecular electrostatic interactions between octanol and PCB molecules. Carbon 132-138 pyruvate carboxylase Homo sapiens 155-158 21782587-4 2002 Aroclors 1242 and 1248, 2,2",3,5",6-pentachlorobiphenyl (PCB 95), 2,2"-dichlorobiphenyl (PCB), cis- and trans- permethrins, and chlorothalonil were found to render estrogenic effects through this c-Neu-mediated mechanism, while alpha and beta- endosulfans appeared to act through a pathway independent of the c-Neu-mediated one. Carbon 3-4 pyruvate carboxylase Homo sapiens 57-60 11763260-2 2001 The PCB distribution has been correlated with location and hydrological conditions as well as with organic carbon, algal pigments and their derivatives in the sediments. Carbon 107-113 pyruvate carboxylase Homo sapiens 4-7 1542055-8 1992 The energetic efficiencies by which propionate and lactate carbon are converted to glucose may be much less than optimal because of extensive cycling through pyruvate kinase, pyruvate carboxylase and phosphoenolpyruvate carboxykinase. Carbon 59-65 pyruvate carboxylase Homo sapiens 175-195 35353621-5 2022 Pyruvate carboxylase provides sufficient anaplerotic carbons to support citrate secretion. Carbon 53-60 pyruvate carboxylase Homo sapiens 0-20 34192988-4 2021 Incorporation of glucose-derived carbons entering the TCA cycle via pyruvate carboxylase was enhanced by NCT-503 treatment. Carbon 33-40 pyruvate carboxylase Homo sapiens 68-88 35199881-0 2022 Long Term Monitoring of an In Situ Activated Carbon Treatment to Reduce PCB Availability in an Active Harbor. Carbon 45-51 pyruvate carboxylase Homo sapiens 72-75 19396987-8 1974 (4) It is postulated that with pyruvate as substrate, recycling of carbon via pyruvate carboxylase, phosphoenolpyruvate carboxylase and pyruvate kinase (ATP: pyruvate phosphotransferase, EC 2.7.1.40) is an important, energy-requiring, mechanism for the transfer of the proportion of NADH not directly associated with gluconeogenesis. Carbon 67-73 pyruvate carboxylase Homo sapiens 78-98 807971-1 1975 The chlorinated hydrocarbons DDT and PCB"s (polychlorinated biphenyls), ubiquitous pollutants of the marine environment, have been observed to reduce the cell division rate of marine phytoplankton, thereby indirectly reducing the total photosynthetic carbon fixation in treated cultures. Carbon 21-27 pyruvate carboxylase Homo sapiens 37-40 31351351-9 2019 PCB sorption tended to increase with the total organic carbon (TOC) of the particulate matter in the sediment samples. Carbon 55-61 pyruvate carboxylase Homo sapiens 0-3 32619684-5 2020 Nonracemic compositions and pronounced stable carbon isotope fractionation (Deltadelta13C > 1%) of PCB congeners were observed, confirming that in situ degradation occurred in the sediment cores. Carbon 46-52 pyruvate carboxylase Homo sapiens 99-102 31542671-2 2019 Previous studies in vitro have shown that a variety of sorbent materials, including carbon, can sorb PCBs; however, PCB sorbents that can be added to food or drinking water to decrease toxin bioavailability in humans and animals have not been reported. Carbon 84-90 pyruvate carboxylase Homo sapiens 101-104 28865272-7 2018 This review focuses on the main factors influencing PCB fate, persistence and bioavailability in soil including PCB mixture congener composition, soil organic carbon forms, microorganism activity, plant species and soil conditions. Carbon 159-165 pyruvate carboxylase Homo sapiens 52-55 30340695-2 2018 In this work, the sulfydryl aptamer selected for OH-PCB was easily immobilized on the surface of the modified glassy carbon electrode via Au-S bond due to incorporation of gold nanoparticles/poly dimethyl diallyl ammonium chloride-graphene composite. Carbon 117-123 pyruvate carboxylase Homo sapiens 52-55 31042378-0 2019 Comment on "A Pilot-Scale Field Study: In Situ Treatment of PCB-Impacted Sediments with Bioamended Activated Carbon". Carbon 109-116 pyruvate carboxylase Homo sapiens 60-63 30698958-0 2019 A Pilot-Scale Field Study: In Situ Treatment of PCB-Impacted Sediments with Bioamended Activated Carbon. Carbon 97-103 pyruvate carboxylase Homo sapiens 48-51 29480553-0 2018 Performance of an in situ activated carbon treatment to reduce PCB availability in an active harbor. Carbon 36-42 pyruvate carboxylase Homo sapiens 63-66 29492816-6 2018 Correlation analysis between PCB concentrations and total organic carbon indicated that local input or atmospheric deposition was the primary controls of spatial variation of PCBs. Carbon 66-72 pyruvate carboxylase Homo sapiens 29-32 27090411-10 2016 The present study shows the importance of accurate sediment and organic carbon simulations to successfully predict riverine PCB transport. Carbon 72-78 pyruvate carboxylase Homo sapiens 124-127 28646765-4 2017 All PCB congeners were positively correlated with total organic carbon (TOC) concentrations. Carbon 64-70 pyruvate carboxylase Homo sapiens 4-7 28501644-5 2017 The torsion angle of the PCB congeners was also shown to be an extremely important factor to be able to use activated carbon as part of the remediation process. Carbon 118-124 pyruvate carboxylase Homo sapiens 25-28 27146527-3 2016 The results of total organic carbon (TOC)-normalized PCB concentrations indicate that the sediments have low potential ecological risk in this area. Carbon 29-35 pyruvate carboxylase Homo sapiens 53-56 26614453-5 2016 Published and unaltered linear free energy and linear solvation energy relationships for DOC, POC, and particulate black carbon (BC) resulted in predictions that were at best 27% (PCB) and 25% root-mean-square error (RMSE) (PCDD/F) partition fraction compared to observed (using estimated BC/POC fractions of 10 and 25%, respectively). Carbon 121-127 pyruvate carboxylase Homo sapiens 180-183 23636593-4 2014 Recent biodegradation studies in Africa have revealed the existence of exotic bacterial strains exhibiting unique and unusual PCB metabolic capability in terms of array of congeners that can serve as carbon source and diversity of congeners attacked, marking considerable progress in the development of effective bioremediation strategies for PCB-contaminated matrices such as sediments and soils in tropical regions. Carbon 200-206 pyruvate carboxylase Homo sapiens 126-129 26915282-3 2016 This study investigates BP and BZ biodegradation and subsequent carbon flow through the microbial community in PCB-contaminated soil. Carbon 64-70 pyruvate carboxylase Homo sapiens 111-114 26702556-7 2016 Moreover, the main driving force was identified to be the combination between the very limited solubility of 2-PCB in pure water and the hydrophobic nature of the activated carbon. Carbon 173-179 pyruvate carboxylase Homo sapiens 111-114 26282439-8 2015 It is well known that total organic carbon plays a role in the transport and redistribution of dl-PCB. Carbon 36-42 pyruvate carboxylase Homo sapiens 98-101 26702556-5 2016 In this study, activated carbons were shown to be highly efficient in the adsorption of 2-PCB under static conditions, i.e. at long contact time (several hours) when the adsorption-desorption equilibrium was reached. Carbon 25-32 pyruvate carboxylase Homo sapiens 90-93 24363178-4 2014 Mitochondrial pyruvate metabolism is regulated by many enzymes, including the recently discovered mitochondria pyruvate carrier, pyruvate dehydrogenase, and pyruvate carboxylase, to modulate overall pyruvate carbon flux. Carbon 208-214 pyruvate carboxylase Homo sapiens 157-177 23636593-4 2014 Recent biodegradation studies in Africa have revealed the existence of exotic bacterial strains exhibiting unique and unusual PCB metabolic capability in terms of array of congeners that can serve as carbon source and diversity of congeners attacked, marking considerable progress in the development of effective bioremediation strategies for PCB-contaminated matrices such as sediments and soils in tropical regions. Carbon 200-206 pyruvate carboxylase Homo sapiens 343-346 24530588-6 2014 Significant correlations were observed between total organic carbon (TOC) contents and PCB concentrations in the soils. Carbon 61-67 pyruvate carboxylase Homo sapiens 87-90 23974165-0 2013 Sediment pore water distribution coefficients of PCB congeners in enriched black carbon sediment. Carbon 81-87 pyruvate carboxylase Homo sapiens 49-52 24445127-2 2014 A GAMM with time, geographical zone, periodicity and the organic carbon - water partition coefficient as covariates explained 49% of the variability in the log transformed PCB sediment concentrations. Carbon 65-71 pyruvate carboxylase Homo sapiens 172-175 21473574-0 2011 In situ measurement of PCB pore water concentration profiles in activated carbon-amended sediment using passive samplers. Carbon 74-80 pyruvate carboxylase Homo sapiens 23-26 22652008-8 2012 It was also found that organic carbon was an important factor for PAHs and high chlorinated PCB retention in soils. Carbon 31-37 pyruvate carboxylase Homo sapiens 92-95 22077959-0 2011 Field-scale reduction of PCB bioavailability with activated carbon amendment to river sediments. Carbon 60-66 pyruvate carboxylase Homo sapiens 25-28 22077959-5 2011 By comparing measured reductions in bioaccumulation of tetra- and penta-chlorinated PCB congeners resulting from field application of activated carbon to a laboratory study where PCBs were preloaded onto activated carbon, it is evident that equilibrium sorption had not been achieved in the field. Carbon 144-150 pyruvate carboxylase Homo sapiens 84-87 22077959-5 2011 By comparing measured reductions in bioaccumulation of tetra- and penta-chlorinated PCB congeners resulting from field application of activated carbon to a laboratory study where PCBs were preloaded onto activated carbon, it is evident that equilibrium sorption had not been achieved in the field. Carbon 214-220 pyruvate carboxylase Homo sapiens 84-87 22077959-6 2011 Although other remedies may be appropriate for some highly contaminated sites, we show through this pilot study that PCB exposure from moderately contaminated river sediments may be managed effectively through activated carbon amendment in sediments. Carbon 220-226 pyruvate carboxylase Homo sapiens 117-120 22796648-4 2012 Soil DDT, HCB, PCB and PBDE concentrations were strongly influenced by soil organic carbon content. Carbon 84-90 pyruvate carboxylase Homo sapiens 15-18 22055155-4 2012 The PCB uptakes in passive samplers decreased up to 73% with a 3.7 dry wt.% AC dose after five years, confirming the temporal enhancement of the amendment benefit from a 19% reduction with a 4.4% dose observed within one month. Carbon 76-78 pyruvate carboxylase Homo sapiens 4-7 20392087-8 2010 Unlike (210)Pb, atmospheric PCB exchange with the water"s surface is partially forced by the aquatic organic carbon cycle. Carbon 109-115 pyruvate carboxylase Homo sapiens 28-31 20388583-0 2010 Effect of reaction environments on the reactivity of PCB (2-chlorobiphenyl) over activated carbon impregnated with palladized iron. Carbon 91-97 pyruvate carboxylase Homo sapiens 53-56 20392087-10 2010 If future marine production and vertical flux of carbon increase due to loss of ice cover or change in river input as consequences of global warming, PCB deposition would also increase. Carbon 49-55 pyruvate carboxylase Homo sapiens 150-153 19544893-8 2009 The PCB bioaccumulation in marine clams was reduced when exposed to sediment treated with 2% AC in comparison to the control plot Field-deployed semi permeable membrane devices and polyethylene devices showed about 50% reduction in PCB uptake in AC-treated sediment and similar reduction in estimated pore-water PCB concentration. Carbon 93-95 pyruvate carboxylase Homo sapiens 4-7 19544893-8 2009 The PCB bioaccumulation in marine clams was reduced when exposed to sediment treated with 2% AC in comparison to the control plot Field-deployed semi permeable membrane devices and polyethylene devices showed about 50% reduction in PCB uptake in AC-treated sediment and similar reduction in estimated pore-water PCB concentration. Carbon 93-95 pyruvate carboxylase Homo sapiens 232-235 19544893-8 2009 The PCB bioaccumulation in marine clams was reduced when exposed to sediment treated with 2% AC in comparison to the control plot Field-deployed semi permeable membrane devices and polyethylene devices showed about 50% reduction in PCB uptake in AC-treated sediment and similar reduction in estimated pore-water PCB concentration. Carbon 93-95 pyruvate carboxylase Homo sapiens 232-235 19544893-8 2009 The PCB bioaccumulation in marine clams was reduced when exposed to sediment treated with 2% AC in comparison to the control plot Field-deployed semi permeable membrane devices and polyethylene devices showed about 50% reduction in PCB uptake in AC-treated sediment and similar reduction in estimated pore-water PCB concentration. Carbon 246-248 pyruvate carboxylase Homo sapiens 4-7 19544893-8 2009 The PCB bioaccumulation in marine clams was reduced when exposed to sediment treated with 2% AC in comparison to the control plot Field-deployed semi permeable membrane devices and polyethylene devices showed about 50% reduction in PCB uptake in AC-treated sediment and similar reduction in estimated pore-water PCB concentration. Carbon 246-248 pyruvate carboxylase Homo sapiens 232-235 19544893-8 2009 The PCB bioaccumulation in marine clams was reduced when exposed to sediment treated with 2% AC in comparison to the control plot Field-deployed semi permeable membrane devices and polyethylene devices showed about 50% reduction in PCB uptake in AC-treated sediment and similar reduction in estimated pore-water PCB concentration. Carbon 246-248 pyruvate carboxylase Homo sapiens 232-235 19544893-11 2009 Field-exposed AC after 18 months retained a strong stabilization capability to reduce aqueous equilibrium PCB concentrations by about 90%, which also supports the long-term effectiveness of AC in the field. Carbon 14-16 pyruvate carboxylase Homo sapiens 106-109 19544893-11 2009 Field-exposed AC after 18 months retained a strong stabilization capability to reduce aqueous equilibrium PCB concentrations by about 90%, which also supports the long-term effectiveness of AC in the field. Carbon 190-192 pyruvate carboxylase Homo sapiens 106-109 18721997-2 2008 The mechanism involves a chain reaction with both homolytic photochemical C-Cl bond fission and electron transfer steps producing PCB anion radicals. Carbon 74-75 pyruvate carboxylase Homo sapiens 130-133 17761210-1 2008 Sequestration of polychlorinated biphenyls (PCBs) by activated carbon (AC) has been proposed as a remediation strategy for PCB-contaminated sediments. Carbon 63-69 pyruvate carboxylase Homo sapiens 44-47 17761210-1 2008 Sequestration of polychlorinated biphenyls (PCBs) by activated carbon (AC) has been proposed as a remediation strategy for PCB-contaminated sediments. Carbon 71-73 pyruvate carboxylase Homo sapiens 44-47 17761210-2 2008 However, published PCB-AC adsorption isotherm data are sparse and, while sediment-derived dissolved organic matter (DOM) and biofilms are likely to be present in sediments, the impacts of these loadings have not been quantified. Carbon 23-25 pyruvate carboxylase Homo sapiens 19-22 18767670-6 2008 Pore water concentrations decreased up to 60% within 18 months after activated carbon amendment, as compared to a mechanical-mixed control plot Results of this study illustrate PEDs provide an inexpensive, in situ method to measure total PCB contamination in sediment pore water using a small set of PRCs. Carbon 79-85 pyruvate carboxylase Homo sapiens 238-241 18177920-4 2008 The observed differences in sorption between the two reference black carbons for PCB-35 may be ascribed to the different chemical characteristics of the black carbons. Carbon 69-76 pyruvate carboxylase Homo sapiens 81-84 18177920-4 2008 The observed differences in sorption between the two reference black carbons for PCB-35 may be ascribed to the different chemical characteristics of the black carbons. Carbon 159-166 pyruvate carboxylase Homo sapiens 81-84 18177920-9 2008 The observed nF (i.e., Freundlich exponent) values for PCB indicated greater linearity of the isotherms for the natural sediment than for the reference black carbons. Carbon 158-165 pyruvate carboxylase Homo sapiens 55-58