Journal: Biomedicines

Article Title: Phthalate Exposure and Oxidative/Nitrosative Stress in Childhood Asthma: A Nested Case-Control Study with Propensity Score Matching

doi: 10.3390/biomedicines10061438

Figure Lengend Snippet: Crude odds ratio (cOR) and adjusted odds ratio (aOR) for high urinary phthalate metabolite levels in the case and control groups.

Article Snippet: In summary, an ultrasonic-assisted solid-liquid extraction method was used to measure the phthalate levels in urine samples, accompanied by the addition of ammonium acetate (AA, 20 μL, >98%, Sigma Aldrich, St. Louis, MO, USA), β-glucuronidase (10 μL, E. coli K12, Roche Biomedical, Mannheim, Germany), and a mixture of 10 isotopic ( 13 C 4 ) phthalate metabolite standards (100 μL, Cambridge Isotope Laboratories, Andover, MA, USA).

Techniques: Control

Journal: Biomedicines

Article Title: Phthalate Exposure and Oxidative/Nitrosative Stress in Childhood Asthma: A Nested Case-Control Study with Propensity Score Matching

doi: 10.3390/biomedicines10061438

Figure Lengend Snippet: Adjusted odds ratio for high oxidative/nitrosative stress biomarkers in the different urinary phthalate metabolite level (75th percentile) groups.

Article Snippet: In summary, an ultrasonic-assisted solid-liquid extraction method was used to measure the phthalate levels in urine samples, accompanied by the addition of ammonium acetate (AA, 20 μL, >98%, Sigma Aldrich, St. Louis, MO, USA), β-glucuronidase (10 μL, E. coli K12, Roche Biomedical, Mannheim, Germany), and a mixture of 10 isotopic ( 13 C 4 ) phthalate metabolite standards (100 μL, Cambridge Isotope Laboratories, Andover, MA, USA).

Techniques:

Journal: Biomedicines

Article Title: Phthalate Exposure and Oxidative/Nitrosative Stress in Childhood Asthma: A Nested Case-Control Study with Propensity Score Matching

doi: 10.3390/biomedicines10061438

Figure Lengend Snippet: ( A ) Adjusted odds ratio for high oxidative/nitrosative stress in the different urinary phthalate metabolite level groups. H 1 : 75th percentile of the 8-OHdG and urinary phthalate metabolite level. Model adjusted for creatinine, passive smoking during pregnancy, annual income, and raising a furry or feathery pet. ( B ) Adjusted odds ratio for high oxidative/nitrosative stress in different urinary phthalate metabolite level groups. H 1 : 75th percentile of the 8-NO 2 Gua and urinary phthalate metabolite level. Model adjusted for creatinine, passive smoking during pregnancy, annual income, and raising a furry or feathery pet. ( C ) Adjusted odds ratio for high oxidative/nitrosative stress in different urinary phthalate metabolite level groups. H 1 : 75th percentile of the HNE-MA and urinary phthalate metabolite level. Model adjusted for creatinine, passive smoking during pregnancy, annual income, and raising a furry or feathery pet. ( D ) Adjusted odds ratio for high oxidative/nitrosative stress in different urinary phthalate metabolite level groups. H 1 : 75th percentile of the 8-IsoPF2α and urinary phthalate metabolite level. Model adjusted for creatinine, passive smoking during pregnancy, annual income, and raising a furry or feathery pet. ( E ) Adjusted odds ratio for high oxidative/nitrosative stress in different urinary phthalate metabolite levels groups. H 1 : 75th percentile of the MDA and urinary phthalate metabolite level. Model adjusted for creatinine, passive smoking during pregnancy, annual income, and raised a furry or feathery pet. Parameters showing statistical significance ( p < 0.05) are highlighted in bold and with * asterisk.

Article Snippet: In summary, an ultrasonic-assisted solid-liquid extraction method was used to measure the phthalate levels in urine samples, accompanied by the addition of ammonium acetate (AA, 20 μL, >98%, Sigma Aldrich, St. Louis, MO, USA), β-glucuronidase (10 μL, E. coli K12, Roche Biomedical, Mannheim, Germany), and a mixture of 10 isotopic ( 13 C 4 ) phthalate metabolite standards (100 μL, Cambridge Isotope Laboratories, Andover, MA, USA).

Techniques:

Journal: Biomedicines

Article Title: Phthalate Exposure and Oxidative/Nitrosative Stress in Childhood Asthma: A Nested Case-Control Study with Propensity Score Matching

doi: 10.3390/biomedicines10061438

Figure Lengend Snippet: Weighted quantile sum (WQS) regression analysis of the association of urinary phthalate metabolites with asthma. Bar graphs show the magnitude of the WQS weight for each metabolite. Models are adjusted for creatinine, passive smoking during pregnancy, annual income, and raising a furry or feathery pet for the odds ratios (95% confidence interval) for association between phthalate metabolites and asthma.

Article Snippet: In summary, an ultrasonic-assisted solid-liquid extraction method was used to measure the phthalate levels in urine samples, accompanied by the addition of ammonium acetate (AA, 20 μL, >98%, Sigma Aldrich, St. Louis, MO, USA), β-glucuronidase (10 μL, E. coli K12, Roche Biomedical, Mannheim, Germany), and a mixture of 10 isotopic ( 13 C 4 ) phthalate metabolite standards (100 μL, Cambridge Isotope Laboratories, Andover, MA, USA).

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Standoff Detection and Identification of Liquid Chemicals on a Reflective Substrate Using a Wavelength-Tunable Quantum Cascade Laser

doi: 10.3390/s22093172

Figure Lengend Snippet: Normalized absorbance spectra of the analyte chemicals of ( a ) DEP and ( b ) DMMP in the EC-QCL operational wavenumber range. ( c ) Photograph images of DEP with surface density of 4 g/m 2 distributed on the substrates formed by grinding.

Article Snippet: Experiments were conducted using diethyl phthalate (DEP), a simulant of VX, and dimethyl methylphosphonate (DMMP), a simulant of G-agent [ ]. a,b show the normalized absorbance spectra of DEP and DMMP, respectively, obtained from the National Institute of Standards and Technology Chemistry WebBook [ ].

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Standoff Detection and Identification of Liquid Chemicals on a Reflective Substrate Using a Wavelength-Tunable Quantum Cascade Laser

doi: 10.3390/s22093172

Figure Lengend Snippet: ( a , b ) Measured (black) and calculated (red) diffuse reflection spectra for DEP coated substrate with Ra of 1.6 μm, at incidence angle of 5° for surface density of ( a ) 2 g/m 2 and ( b ) 4 g/m 2 . ( c , d ) Extracted power scaling factor ( c ) c 0 and extracted absorbance scaling factor ( d ) c DEP from measured data for different surface densities of DEP and different incidence angles using the substrate with Ra of 1.6 μm. ( e ) Distribution of the coefficient of determination R 2 according to c 0 . ( f ) Result of None, DEP, DMMP, and Mixture of DEP and DMMP.

Article Snippet: Experiments were conducted using diethyl phthalate (DEP), a simulant of VX, and dimethyl methylphosphonate (DMMP), a simulant of G-agent [ ]. a,b show the normalized absorbance spectra of DEP and DMMP, respectively, obtained from the National Institute of Standards and Technology Chemistry WebBook [ ].

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Standoff Detection and Identification of Liquid Chemicals on a Reflective Substrate Using a Wavelength-Tunable Quantum Cascade Laser

doi: 10.3390/s22093172

Figure Lengend Snippet: ( a ) Measured (black) and calculated (red) diffuse reflection spectra of DEP and DMMP 1:1 ratio mixture coated on substrate with Ra of 1.6 μm at incidence angle of 5° for surface density of 5 g/m 2 . ( b ) Calculated absorbance spectra of DEP (red), DMMP (blue), and 1:1 ratio mixture (black) using the extracted absorbance scaling factors in ( a ). ( c ) Absorbance scaling factors of DEP ( y -axis) and DMMP ( x -axis) for a surface density of 5 g/m 2 and different surface roughness of the substrate. ( d ) Absorbance scaling factors of DEP and DMMP for substrate roughness Ra of 1.6 μm, surface density of 5 g/m 2 according to incidence angle. ( e ) Result of classification of the mixture measurement data using the deep learning model trained for four classes of None, DEP, DMMP, and Mixture of DEP and DMMP.

Article Snippet: Experiments were conducted using diethyl phthalate (DEP), a simulant of VX, and dimethyl methylphosphonate (DMMP), a simulant of G-agent [ ]. a,b show the normalized absorbance spectra of DEP and DMMP, respectively, obtained from the National Institute of Standards and Technology Chemistry WebBook [ ].

Techniques: