Articles: PubMed:Quantification of total cholesterol in human milk by gas chromatography. PubMed:Steroid Biomarkers Revisited - Improved Source Identification of Faecal Remains in Archaeological Soil Material. PubMed:Sterols indicate water quality and wastewater treatment efficiency. PubMed:Sterols and Stanols Preserved in Pond Sediments Track Seabird Biovectors in a High Arctic Environment. PubMed:Sterol ratios as a tool for sewage pollution assessment of river sediments in Serbia. PubMed:Identifying avian sources of faecal contamination using sterol analysis. PubMed:Microbial water quality and sedimentary faecal sterols as markers of sewage contamination in Kuwait. PubMed:Determination of Geochemically Important Sterols and Triterpenols in Sediments Using Ultrahigh-Performance Liquid Chromatography Tandem Mass Spectrometry (UHPLC-MS/MS). PubMed:Trace analysis of selected hormones and sterols in river sediments by liquid chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry. PubMed:Assessment of historical fecal contamination in Curitiba, Brazil, in the last 400 years using fecal sterols. PubMed:An integrated evaluation of molecular marker indices and linear alkylbenzenes (LABs) to measure sewage input in a subtropical estuary (Babitonga Bay, Brazil). PubMed:Baseline concentrations of faecal sterols and assessment of sewage input into different inlets of Admiralty Bay, King George Island, Antarctica. PubMed:Evaluation of potential sewage contamination by fecal sterol biomarkers adsorbed in natural biofilms. PubMed:Macrobenthos and multi-molecular markers as indicators of environmental contamination in a South American port (Mar del Plata, Southwest Atlantic). PubMed:Climate impacts on human settlement and agricultural activities in northern Norway revealed through sediment biogeochemistry. PubMed:Predicting the concentration range of unmonitored chemicals in wastewater-dominated streams and in run-off from biosolids-amended soils. PubMed:Origin of fecal contamination in waters from contrasted areas: stanols as Microbial Source Tracking markers. PubMed:Multi-molecular markers and metals as tracers of organic matter inputs and contamination status from an Environmental Protection Area in the SW Atlantic (Laranjeiras Bay, Brazil). PubMed:Extreme variability of steroid profiles in cow feces and pig slurries at the regional scale: implications for the use of steroids to specify fecal pollution sources in waters. PubMed:Ecosystem evolution of seal colony and the influencing factors in the 20th century on Fildes Peninsula, West Antarctica. PubMed:Specificity of cholesterol and analogs to modulate BK channels points to direct sterol-channel protein interactions. PubMed:Sedimentary records of sewage pollution using faecal markers in contrasting peri-urban shallow lakes. PubMed:Distribution of sewage input in marine sediments around a maritime Antarctic research station indicated by molecular geochemical indicators. PubMed:[NMR-spectroscopy-based metabonomic approach to analysis of Siwutang, a novel prescription, treated blood deficiency in mice]. PubMed:Sediments as a potential tool for assessment of sewage pollution in Barigüi River, Brazil. PubMed:The role of cell cholesterol and the cytoskeleton in the interaction between IK1 and maxi-K channels. PubMed:Determination of fecal sterols by gas chromatography-mass spectrometry with solid-phase extraction and injection-port derivatization. PubMed:Assessment of fecal sterols in Barigui River sediments in Curitiba, Brazil. PubMed:Identification and significance of sterols in MSW landfill leachate. PubMed:Sterols: a tracer of organic matter in combined sewers. PubMed:Evaluating potential applications of faecal sterols in distinguishing sources of faecal contamination from mixed faecal samples. PubMed:Use of selected chemical markers in combination with a multiple regression model to assess the contribution of domesticated animal sources of fecal pollution in the environment. PubMed:Multivariate logistic regression for predicting total culturable virus presence at the intake of a potable-water treatment plant: novel application of the atypical coliform/total coliform ratio. PubMed:Bacterial source tracking from diverse land use catchments by sterol ratios. PubMed:Comparisons of water quality parameters from diverse catchments during dry periods and following rain events. PubMed:Evaluation of ambrein and epicoprostanol for their antioxidant properties: protection against adriamycin-induced free radical toxicity. PubMed:Microwave-assisted solvent extraction of solid matrices and subsequent detection of pharmaceuticals and personal care products (PPCPs) using gas chromatography-mass spectrometry. PubMed:Interaction of the glycoalkaloid tomatine with DMPC and sterol monolayers studied by surface pressure measurements and Brewster angle microscopy. PubMed:An efficient diethyl ether-based soxhlet protocol to quantify faecal sterols from catchment waters. PubMed:Free Fatty acids and sterols in swine manure. PubMed:Identifying the source, transport path and sinks of sewage derived organic matter. PubMed:Tracking the origin of faecal pollution in surface water: an ongoing project within the European Union research programme. PubMed:Use of fecal steroids to infer the sources of fecal indicator bacteria in the Lower Santa Ana River Watershed, California: sewage is unlikely a significant source. PubMed:Application of comprehensive two-dimensional gas chromatography to the quantification of overlapping faecal sterols. PubMed:Determination of faecal pollutants in Torrens and Patawalonga catchment waters in South Australia using faecal sterols. PubMed:Structural features of sterols required to inhibit human sperm capacitation. PubMed:Tracing sewage in the marine environment: altered signatures in Concepción Bay, Chile. PubMed:Assay of microsomal oxysterol 7alpha-hydroxylase activity in the hamster liver by a sensitive method: in vitro modulation by oxysterols. PubMed:Sedimentary 4-desmethyl sterols and n-alkanols in an eutrophic urban estuary, Capibaribe River, Brazil. PubMed:Modulation of cholesterol 7alpha-hydroxylase and sterol 27-hydroxylase activities by steroids and physiological conditions in hamster. PubMed:Method for simultaneous measurements of traces of heptadeuterated cholesterol and cholesterol by gas chromatography-mass spectrometry: application in humans. PubMed:New method for determination of fecal sterols in urine using non-chlorinated solvents. PubMed:Gas chromatographic analysis of resveratrol in plasma, lipoproteins and cells after in vitro incubations. PubMed:Epicoprostanol found in adipocere from five human autopsies. PubMed:Protection by epicoprostanol against hyperglycemia and insulitis in normal and diabetic rats. PubMed:Features of cholesterol structure that regulate the clearance of chylomicron-like lipid emulsions. PubMed:In vitro modulation of rat adipocyte ghost membrane fluidity by cholesterol oxysterols. PubMed:Chromatographic separation of cholesterol in foods. PubMed:Metabolic variables of cholesterol during squalene feeding in humans: comparison with cholestyramine treatment. PubMed:Electron-capture gas chromatography as a sensitive method for measuring subnanogram amounts of cholesterol in saliva and urine. PubMed:Intestinal cholesterol metabolism. PubMed:Calcium-induced phase separation phenomena in multicomponent unsaturated lipid mixtures. PubMed:Lipid acyl chain-dependent effects of sterols in Acholeplasma laidlawii membranes. PubMed:Effect of sterol incorporation on head group separation in liposomes. PubMed:Effect of cholesterol on phospholipid, RNA, and protein synthesis in Mycoplasma capricolum. PubMed:Molecular packing in steroid-lecithin monolayers. IV. Mixed films of epicoprostanol with dipalmitoyl phosphatidylcholine. PubMed:Coordinate regulation of unsaturated phospholipid, RNA, and protein synthesis in Mycoplasma capricolum by cholesterol. PubMed:Reversed-phase thin layer chromatography of some common sterols. PubMed:Comparative methods of quantifying fecal neutral sterols in rats and humans after intravenous [14C]-, [3H] or [2H]cholesterol labeling. PubMed:Capillary gas-liquid chromatography of faecal free and esterified neutral sterols. PubMed:Fecal steroids in diarrhea: IV. Cholera. PubMed:The structure of mixed cholesterol-phospholipid monolayers spread at the air-water interface as probed by interactions with band 3 protein from erythrocyte membranes. PubMed:Thin-layer and gas--liquid chromatographic identification of neutral steroids in human and rat feces. PubMed:Identification and origins of neutral fecal sterols in adult Large White sows: occurrence of externally-secreted intestinal cholesterol. PubMed:Gas chromatographic detection of the mycotoxin zearalenone in blood serum. PubMed:Assessment of serum cholesterol by two methods: gas-liquid chromatography on a capillary column and chemical ionization-mass fragmentography with isotopic dilution of [3,4-13C] cholesterol as internal standard. PubMed:Diet and sterol biohydrogenation in the rat: occurrence of epicoprostanol. PubMed:Daily elimination of fecal neutral sterols by humans. PubMed:Fecal steroids in diarrhea. I. Acute shigellosis. PubMed:Sterol requirements of T-strain mycoplasmas. PubMed:Esterification of injected epicoprostanol in a human subject. PubMed:Stero-bile acids and bile alcohols. XCVII. Metabolism of epicoprostanol in the Japanese eel.