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Sulfur Isotopes (1):
Recent article
Sulfur Isotopes
Abstract
We demonstrate that a pure, actively growing culture of a marine sulfate-reducing bacterium can deplete (34)S by up to 66‰ during sulfate reduction alone and in the absence of an extracellular oxidative sulfur cycle. Therefore, similar magnitudes of sulfur isotope fractionation in sedimentary rock...
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PMID: 21719675
PDF is available here.
PDF is available here.
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Abstract
We present sulphur isotope records from six globally distributed stratigraphic sections of later Cambrian marine rocks (about 499 million years old). We find a positive sulphur isotope excursion in phase with the Steptoean Positive Carbon Isotope Excursion (SPICE), a large and rapid excursion in the...
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PMID: 21209662
PDF is available here.
PDF is available here.
Abstract
We find that the preservation of mass-independent sulfur is influenced by a variety of extra-atmospheric mechanisms, including biological activity and continental crust formation. Preservation of atmospherically produced mass-independent sulfur implies limited metabolic sulfur cycling before approxi...
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PMID: 20508089
PDF is available here.
PDF is available here.
Abstract
We combined DsrAB gene sequencing and sulfur isotopic profiling to identify the phylogeny and distribution of SRB and to assess their metabolic activity in salt marsh sediments exposed to acid mine drainage (AMD) for over 100 years. Recovered dsrAB sequences from three sites sampled along an AMD flo...
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PMID: 20472728
PDF is available here.
PDF is available here.
Abstract
We measured brain endocannabinoid levels and [35S]GTPgammaS binding stimulated by the CB receptor agonist CP55,940 in rats undergoing withdrawal from subchronic administration of phencyclidine (PCP), a well-established pharmacological model of schizophrenia. We also investigated whether systemic app...
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PMID: 19607756
PDF is available here.
PDF is available here.
European Journal of Pharmacology (614)1-3 2009
Abstract
Compound 24, 1-benzyl-N-[3-[spiroisobenzofuran-1(3H),4'-piperidin-1-yl]propyl] pyrrolidine-2-carboxamide was recently identified as a nociceptin/orphanin FQ (N/OFQ) peptide receptor (NOP) ligand. In this study, the in vitro and in vivo pharmacological profiles of Compound 24 were inv...
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PMID: 19445927
PDF is available here.
PDF is available here.
Analytical Biochemistry (390)1 2009
Abstract
A simple methodology for the identification of hemostatic proteins that are subjected to posttranslational tyrosine sulfation was developed. The procedure involves sequence analysis of members of the three hemostatic pathways using the Sulfinator prediction algorithm, followed by [(35)S]sulfate labe...
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PMID: 19351526
PDF is available here.
PDF is available here.
Abstract
We have developed the (33)S NMR cryogenic probe, which is applicable to taurine solutions. The NMR sensitivity gain relative to a conventional broadband probe is as large as 3.5. This work suggests that improvements in the preamplifier could allow NMR measurements on 100 microM taurine solutions, wh...
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PMID: 19334961
PDF is available here.
PDF is available here.
Abstract
An accurate, sensitive, and fast method for direct determination of total sulfur in petroleum products after thermal vaporization of an isotope-diluted sample was developed by using ICP-MS. (34)S-labelled dibenzothiophene spike was used for the isotope dilution step. The isotope-diluted sample was i...
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PMID: 18825376
PDF is available here.
PDF is available here.
Biochemical Society transactions (36)Pt 6 2008
Abstract
SOEs (sulfite-oxidizing enzymes) are physiologically vital and occur in all forms of life. During the catalytic cycle, the five-co-ordinate square pyramidal oxo-molybdenum active site passes through the Mo(V) state, and intimate details of the structure can be obtained from variable frequency pulsed...
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PMID: 19021510
PDF is available here.
PDF is available here.
Geobiology (6)5 2008
Abstract
We use to search for it. Here we present new sulphur isotope data (32S, 33S, 34S, 36S) from a variety of modern marine environments and use these observations, along with previously published work, to contribute to this search. Specifically, we use these new data to gain a sense of life's influences...
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PMID: 18715228
PDF is available here.
PDF is available here.
Science of the Total Environment (405)1-3 2008
Abstract
We determined trout hatchery organic contribution to spring creek sediments and foodwebs with natural abundance stable isotope methods. Hatchery feed, waste, and trout were significantly enriched in delta(13)C relative to autotrophs and wild fish. Spring creek sediments were enriched in delta(13)C t...
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PMID: 18674799
PDF is available here.
PDF is available here.
Abstract
Aqueous uranium (U(VI)) concentrations in a contaminated aquifer in Rifle Colorado have been successfully lowered through electron donor amended bioreduction. Samples collected during the acetate amendment experiment were analyzed for aqueous concentrations of Fe(ll), sulfate, sulfide, acetate, U(VI...
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PMID: 19031870
PDF is available here.
PDF is available here.
Abstract
We applied the dual isotope system (delta(34)S-delta(18)O--SO4(2-)) to investigate the relevance of bacterial sulfate reduction (BSR) for natural biodegradation in an anaerobic, sulfate rich aquifer contaminated with petroleum hydrocarbons. Isotope fractionation parameters were determined in column...
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PMID: 19031864
PDF is available here.
PDF is available here.
Journal of Neuroscience (28)39 2008
Abstract
Our investigation analyzed behavioral roles for cannabinoid mechanisms of the pontine parabrachial nucleus (PBN) in modulating intake of presumably palatable foods containing fat and/or sugar. The PBN serves to gate neurotransmission associated with, but not limited to, the gustatory properties of f...
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PMID: 18815256
PDF is available here.
PDF is available here.
Journal of Neuroimmunology (201-202) 2008
Abstract
Our results provide evidence supporting a potential role for GrB in the process of initiation of MG, and are consistent with the concept of an immunodominant epsilon epitope....
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PMID: 18675462
PDF is available here.
PDF is available here.
Abstract
We were able to identify some clusters of data, which were assigned as atmospheric deposition (acid rain component), discharge from municipal sewage, paleo-brine components in clastic sedimentary rocks, dissolution of gypsum mainly in dolomite, oxidation of sulfide minerals in coal-containing clasti...
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PMID: 18754455
PDF is available here.
PDF is available here.
Abstract
Electron paramagnetic resonance (EPR) investigation of the Mo(V) center of the pathogenic R160Q mutant of human sulfite oxidase (hSO) confirms the presence of three distinct species whose relative abundances depend upon pH. Species 1 is exclusively present at pH < or = 6, and remains in significant...
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PMID: 18529001
PDF is available here.
PDF is available here.
Abstract
We present a parallel microgeochemical and microbiological study of micron-scale sulfur cycling within hypersaline microbial mats from Guerrero Negro, Baja California Sur, Mexico. Dissolved sulfide within the mats was captured on silver discs and analyzed for its abundance and delta(34)S isotopic co...
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PMID: 18528418
PDF is available here.
PDF is available here.
Abstract
Abstract
We report the broadest range of oxygen isotope values yet measured in marine sediments (-25 per thousand to +12 per thousand) in methane seeps in Marinoan deglacial sediments underlying the cap carbonate. This range of values is likely to be the result of mixing between ice-sheet-derived meteoric wa...
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PMID: 18509441
PDF is available here.
PDF is available here.
FEMS Microbiology Letters (282)2 2008
Abstract
Growing cultures and nongrowing suspensions of Halothiobacillus neapolitanus selectively fractionated (32)S and (34)S during the oxidation of the sulfane- and sulfonate-sulfur atoms of thiosulfate. Sulfate was enriched in (32)S, with delta(34)S reaching -6.3 per thousand relative to the precursor su...
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PMID: 18373645
PDF is available here.
PDF is available here.
Abstract
I have studied the possibility of inducing a similar reaction using the nucleus of (33)S, for which the reaction cross section presents resonances for keV neutrons, the highest peak occurring at 13.5 keV. Here shown, by means of Monte Carlo simulation of point-like sources of neutrons in this energy...
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PMID: 18356577
PDF is available here.
PDF is available here.
Ecological Applications (18)3 2008
Abstract
We demonstrate the utility of stable sulfur isotopes to elucidate overwintering habitat use by cormorants breeding on Lake Erie. Sulfur isotopes in feathers grown on overwintering grounds provided insights into the degree to which birds used freshwater vs. marine environments. The proportion of bird...
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PMID: 18488616
PDF is available here.
PDF is available here.
Neuropsychopharmacology (33)5 2008
Abstract
We confirmed that both morphine and oxycodone showed MOR agonistic activities. Mice with sciatic nerve ligation exhibited the marked neuropathic pain-like behavior. Under these conditions, antinociception induced by subcutaneously (s.c.) injected morphine was significantly decreased by sciatic nerve...
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PMID: 17593930
PDF is available here.
PDF is available here.
Neuropharmacology (54)5 2008
Abstract
Our aim was to examine whether periadolescent chronic exposure to the cannabinoid agonist CP-55,940 could exert sex-dependent effects on morphine reinforcing and the opioid system in adulthood. Morphine reinforcing was studied under a progressive ratio (PR) reinforcement schedule in adult male and f...
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PMID: 18329053
PDF is available here.
PDF is available here.
Abstract
Philippot et al. (Reports, 14 September 2007, p. 1534) interpreted multiple-sulfur isotopic compositions of approximately 3.5-billion-year-old marine sulfide deposits as evidence that early Archaean microorganisms were not sulfate reducers but instead metabolized elemental sulfur. However, their dat...
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PMID: 18323434
PDF is available here.
PDF is available here.
Abstract
We investigated the effects of natural environments and human activity on Lake Biwa, central Japan. We determined the concentrations of 19 elements and the compositions of stable S and Sr isotopes in the main tributaries of the lake and compared them with the corresponding values obtained from the l...
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PMID: 17935759
PDF is available here.
PDF is available here.
Abstract
A species-specific isotope dilution technique for accurate determination of sulfur species in low- and high-boiling petroleum products was developed by coupling capillary gas chromatography with quadrupole ICP-MS (GC-ICP-IDMS). For the isotope dilution step 34S-labeled thiophene, dibenzothiophene, a...
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PMID: 17874080
PDF is available here.
PDF is available here.
Abstract
The element sulfur is almost omnipresent in all natural proteomes and plays a key role in protein quantification. Incorporated in the amino acids cysteine and methionine, it has been served as target for many protein-labeling reactions in classic quantitative proteomic approaches based on electrospr...
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PMID: 17985123
PDF is available here.
PDF is available here.
Abstract
Heteroisotope and heteroatom tagging with [(34)S]-enriched methionine (Met), selenomethionine (SeMet), and telluromethionine (TeMet) was applied to in vitro translation. Green fluorescent protein (GFP) and JNK stimulatory phosphatase-1 (JSP-1) genes were translated with wheat germ extract (WGE) in t...
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PMID: 17846751
PDF is available here.
PDF is available here.
Abstract
We recommend the use of PRS probes as an efficient and easy way to collect soil water sulfate for determination of its isotope composition....
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PMID: 18268314
PDF is available here.
PDF is available here.
Abstract
We describe the anthropogenic impacts on the major dissolved elements (Cl(-), NO(3)(-)-N, SO(4)(2-), and Na(+)) in the water from the Minjiang River (a headwater tributary of the Yangtze River) and upper Yangtze River in relation to increasing human activity. The major element chemistry and hydrogen...
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PMID: 18268304
PDF is available here.
PDF is available here.
Ground Water (46)3 2008
Abstract
Sulfate (S and O) isotopes used in conjunction with sulfate concentration provide a tracer for ground water contributions to base flow. They are particularly useful in areas where rock sources of contrasting S isotope character are juxtaposed, where water chemistry or H and O isotopes fail to distin...
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PMID: 18331327
PDF is available here.
PDF is available here.
Abstract
We also describe a strong, distinct (33)SO(2) rovibrational transition in the same spectral region, which may enable simultaneous delta(34)S and Delta(33)S measurements....
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PMID: 18020312
PDF is available here.
PDF is available here.
Abstract
The isotopic composition of air-borne sulphur was investigated in Saxony, Southeast Germany--a region with formerly very high atmospheric SO(2) concentrations. In addition, data from various authors were compiled for different Saxonian locations, spanning from 1992 to 2004, i.e., a time of decreasin...
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PMID: 18041620
PDF is available here.
PDF is available here.
Abstract
I = 3/2), followed by reoxidation by ferricyanide to generate the Mo(V) state of the active center. To obtain information about the hyperfine interaction (hfi) of 33S with Mo(V), continuous-wave electron paramagnetic resonance (EPR) and electron spin echo envelope modulation (ESEEM) experiments have...
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PMID: 17983221
PDF is available here.
PDF is available here.
Psychopharmacology (194)4 2007
Abstract
Distinct alterations of D2R and DYN mRNA levels in SN and Acb/STR, respectively, strengthen the evidence implicating pre- and postsynaptic changes in augmented locomotor sensitization to U69593/QNP cotreatment. It is suggested that repeated U69593/QNP cotreatment may augment locomotor sensitization...
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PMID: 17619861
PDF is available here.
PDF is available here.
Analytical Biochemistry (370)1 2007
Abstract
Abstract
We focus on the Mesoarchaean interval, and demonstrate preservation of a non-mass-dependent signal that differs from that of preceding and following periods in the Archaean. Our findings point to the persistence of an anoxic early atmosphere, and identify variability within the isotope record that s...
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PMID: 17928857
PDF is available here.
PDF is available here.
Science of the Total Environment (384)1-3 2007
Abstract
Sulfur and strontium isotopes (delta(34)S and (87)Sr/(86)Sr) were determined in 39 river water samples collected over three different cultivation periods (April, May, and June), and in several materials used for comparison (fertilizers, detergents, soils, irrigation and agricultural waters), to eval...
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PMID: 17604083
PDF is available here.
PDF is available here.
Abstract
High-resolution geochemical analyses of organic-rich shale and carbonate through the 2500 million-year-old Mount McRae Shale in the Hamersley Basin of northwestern Australia record changes in both the oxidation state of the surface ocean and the atmospheric composition. The Mount McRae record of sul...
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PMID: 17901329
PDF is available here.
PDF is available here.
Abstract
High-resolution chemostratigraphy reveals an episode of enrichment of the redox-sensitive transition metals molybdenum and rhenium in the late Archean Mount McRae Shale in Western Australia. Correlations with organic carbon indicate that these metals were derived from contemporaneous seawater. Rheni...
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PMID: 17901330
PDF is available here.
PDF is available here.
Abstract
We show that these microscopic sulfides have a mass-independently fractionated sulfur isotopic anomaly (Delta33S) that differs from that of their host sulfate (barite). These microscopic sulfides could not have been produced by sulfate-reducing microbes, nor by abiologic processes that involve reduc...
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PMID: 17872441
PDF is available here.
PDF is available here.
Abstract
Abstract
We performed a yeast two-hybrid screen and identified pancortin-2 as a novel beta-dystrobrevin-binding partner. Pancortins-1-4 are neuron-specific olfactomedin-related glycoproteins, highly expressed during brain development and widely distributed in the mature cerebral cortex of the mouse. Pancorti...
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PMID: 17265465
PDF is available here.
PDF is available here.
Abstract
We propose that the rise of atmospheric oxygen occurred because the predominant sink for oxygen in the Archaean era-enhanced submarine volcanism-was abruptly and permanently diminished during the Archaean-Proterozoic transition. Observations are consistent with the corollary that subaerial volcanism...
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PMID: 17728754
PDF is available here.
PDF is available here.
Water Research (41)15 2007
Abstract
We used isotopic (delta18O, delta2H, delta34S-SO4) and chemical tracers (boron) to assess the sources and transport processes of the micropollutants carbamazepine, galaxolide, and bisphenol A in groundwater underlying the city of Halle (Saale), Germany. Their ubiquitous presence in urban groundwater...
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PMID: 17575997
PDF is available here.
PDF is available here.
Abstract
We extend this concept to Salmonella typhimurium. A strain of attenuated S. typhimurium previously evaluated in human volunteers was further deleted for uvrAB genes and designated CKS362. Photochemical treatment of CKS362 resulted in significant inactivation. These KBMA organisms were metabolically...
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PMID: 17357059
PDF is available here.
PDF is available here.
Microbial Pathogenesis (42)4 2007
Abstract
We demonstrated binding affinity between VP1 and three human proteins, i.e. ornithine decarboxylase (ODC1), gene trap ankyrin repeat (GTAR), and KIAA0697 expressed in brain tissue. These interactions were authenticated by co-immunoprecipitation experiments, and by indirect immunofluorescent confocal...
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PMID: 17276651
PDF is available here.
PDF is available here.
Abstract
We show that the inverse correlation can be explained by the deposition of evaporites during the opening of the South Atlantic Ocean basin. Evaporite deposition can alter the chemical composition of sea water, which can in turn affect the ability of sulphate-reducing bacteria to remineralize organic...
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PMID: 17410172
PDF is available here.
PDF is available here.
Abstract
A novel generic approach based on precolumn isotope dilution nanoHPLC-ICPMS analysis was developed for the accurate absolute quantification of sulfur-containing peptides. A 34S-labeled, species-unspecific sulfur spike (sulfate), noninteracting with analyte peptides under the optimized HPLC condition...
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PMID: 17309230
PDF is available here.
PDF is available here.
Abstract
We used dopamine D(2) receptor signaling assays to compare the in vitro functional characteristics of the antipsychotic aripiprazole with other dopamine D(2) receptor partial agonists (7-{3-[4-(2,3-dimethylphenyl)-piperazinyl]propoxy}-2(1H)-quinolinone [OPC-4392], (-)-3-(3-hydroxy-phenyl)-N-n-propyl...
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PMID: 17070976
PDF is available here.
PDF is available here.
Analytical Biochemistry (362)2 2007
Abstract
To establish a simple and sensitive method to detect protein N-myristoylation, the usefulness of a newly developed cell-free protein synthesis system derived from insect cells for detecting protein N-myristoylation by in vitro metabolic labeling was examined. The results showed that in vitro transla...
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PMID: 17266917
PDF is available here.
PDF is available here.
Abstract
Sulphur isotope compositions were determined in two different Polish coals (hard coal and lignite) and by-products originating from their combustion. The desulphurization process was also investigated. It was demonstrated that desulphurization changes the isotopic composition of sulphur emitted in t...
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PMID: 17454273
PDF is available here.
PDF is available here.
Abstract
Neuropsychopharmacology (32)3 2007
Abstract
We currently assessed whether Delta-9-tetrahydrocannabinol (THC) exposure during adolescence modulates opiate reinforcement and opioid neural systems in adulthood. Long-Evan male rats received THC (1.5 mg/kg intraperitoneally (i.p.)) or vehicle every third day during postnatal days (PNDs) 28-49. Her...
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PMID: 16823391
PDF is available here.
PDF is available here.
Environmental Pollution (145)3 2007
Abstract
We propose that pollutants originate, in part, from coal combusted at brick factories and were mobilized promotionally by the alkaline nature of the local groundwater....
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PMID: 16777300
PDF is available here.
PDF is available here.
Neuropharmacology (52)2 2007
Abstract
We demonstrated that D(1) agonists can cause functionally selective effects when the endpoints of receptor internalization and adenylate cyclase activation are compared. The present study was designed to probe the phenomenon of functional selectivity at the D(1) receptor further by testing the hypot...
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PMID: 17067639
PDF is available here.
PDF is available here.
Neuroscience (144)2 2007
Abstract
We report the cloning and molecular characterization of the zfPDYN. The complete open reading frame for this propeptide is comprised in two exons that are localized on chromosome 23. zfPDYN cDNA codes for a polypeptide of 252 amino acids that contains the consensus sequences for four opioid peptides...
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PMID: 17069980
PDF is available here.
PDF is available here.