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74 results

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Page 1
Hydrogen and Methane-Based Breath Testing in Gastrointestinal Disorders: The North American Consensus.
Rezaie A, Buresi M, Lembo A, Lin H, McCallum R, Rao S, Schmulson M, Valdovinos M, Zakko S, Pimentel M. Rezaie A, et al. Am J Gastroenterol. 2017 May;112(5):775-784. doi: 10.1038/ajg.2017.46. Epub 2017 Mar 21. Am J Gastroenterol. 2017. PMID: 28323273 Free PMC article.
BT is useful in the diagnosis of carbohydrate maldigestion, methane-associated constipation, and evaluation of bloating/gas but not in the assessment of oro-cecal transit. A rise in hydrogen of 20 p.p.m. by 90 min during glucose or lactulose BT for SIBO was considered pos …
BT is useful in the diagnosis of carbohydrate maldigestion, methane-associated constipation, and evaluation of bloating/gas but not in the a …
Methanogens and Hydrogen Sulfide Producing Bacteria Guide Distinct Gut Microbe Profiles and Irritable Bowel Syndrome Subtypes.
Villanueva-Millan MJ, Leite G, Wang J, Morales W, Parodi G, Pimentel ML, Barlow GM, Mathur R, Rezaie A, Sanchez M, Ayyad S, Cohrs D, Chang C, Rashid M, Hosseini A, Fiorentino A, Weitsman S, Chuang B, Chang B, Pichetshote N, Pimentel M. Villanueva-Millan MJ, et al. Am J Gastroenterol. 2022 Dec 1;117(12):2055-2066. doi: 10.14309/ajg.0000000000001997. Epub 2022 Sep 6. Am J Gastroenterol. 2022. PMID: 36114762 Free PMC article.
DISCUSSION: Our findings identify distinct gut microtypes linked to breath gas patterns in IBS-C and IBS-D subjects, driven by methanogens such as M. smithii and H 2 S producers such as Fusobacterium and Desulfovibrio spp, respectively....
DISCUSSION: Our findings identify distinct gut microtypes linked to breath gas patterns in IBS-C and IBS-D subjects, driven by methanogens s …
Hydrogen Sulfide and Methane on Breath Test Correlate with Human Small Intestinal Hydrogen Sulfide Producers and Methanogens.
Villanueva-Millan MJ, Leite G, Mathur R, Rezaie A, Fajardo CM, de Freitas Germano J, Morales W, Sanchez M, Rivera I, Parodi G, Weitsman S, Rashid M, Hosseini A, Brimberry D, Barlow GM, Pimentel M. Villanueva-Millan MJ, et al. Dig Dis Sci. 2025 Nov;70(11):3846-3856. doi: 10.1007/s10620-025-09156-y. Epub 2025 Jun 26. Dig Dis Sci. 2025. PMID: 40569514 Free PMC article.
Higher breath CH(4) correlated with greater prevalences of methanogens including M. smithii (P = 0.02), Halarchaeum sp. CBA1220 (P = 0.003), Desulfurococcus mucosus (P = 0.046), and Halobaculum rubrum (P = 0.049). ...In IMO-positive subjects, CH(4) levels correlated with g …
Higher breath CH(4) correlated with greater prevalences of methanogens including M. smithii (P = 0.02), Halarchaeum sp. CBA1220 (P = …
The Impact of Metal Centers in the M-MOF-74 Series on Formic Acid Production.
Wasik DO, Vicent-Luna JM, Rezaie S, Luna-Triguero A, Vlugt TJH, Calero S. Wasik DO, et al. ACS Appl Mater Interfaces. 2024 Aug 28;16(34):45006-45019. doi: 10.1021/acsami.4c10678. Epub 2024 Aug 14. ACS Appl Mater Interfaces. 2024. PMID: 39141894 Free PMC article.
In metal-organic frameworks, the type of metal center has a greater impact on the enhancement of formic acid production than the scale of confinement resulting from the pore size. The M-MOF-74 series enables a comprehensive study of how different metal centers affect HCOOH …
In metal-organic frameworks, the type of metal center has a greater impact on the enhancement of formic acid production than the scale of co …
Structure-Antioxidant Activity Relationships of Luteolin and Catechin.
Ahmadi SM, Farhoosh R, Sharif A, Rezaie M. Ahmadi SM, et al. J Food Sci. 2020 Feb;85(2):298-305. doi: 10.1111/1750-3841.14994. Epub 2020 Jan 20. J Food Sci. 2020. PMID: 31957877
In the DPPH( ) assay, catechin's 3-OH group led to lower IC(50) values than luteolin's 1,4-pyrone moiety in acetone (3.4 M compared with 9.4 M), while there was no significant difference in methanol (IC(50) = approximately 18.3 M) or tetrahydrofuran (IC(50 …
In the DPPH( ) assay, catechin's 3-OH group led to lower IC(50) values than luteolin's 1,4-pyrone moiety in acetone (3.4 M compared …
Electrostatic dependence of the thrombin-thrombomodulin interaction.
Baerga-Ortiz A, Rezaie AR, Komives EA. Baerga-Ortiz A, et al. J Mol Biol. 2000 Feb 18;296(2):651-8. doi: 10.1006/jmbi.1999.3447. J Mol Biol. 2000. PMID: 10669614
At physiological ionic strength, the k(a) was 6.7x10(6) M(-1) s(-1 )and the dissociation rate constant was 0.033 s(-1). These extremely fast association and dissociation rates resulted in an overall binding equilibrium constant of 4.9 nM, which is similar to previously rep …
At physiological ionic strength, the k(a) was 6.7x10(6) M(-1) s(-1 )and the dissociation rate constant was 0.033 s(-1). These extreme …
Smoking has disruptive effects on the small bowel luminal microbiome.
Leite G, Barlow GM, Hosseini A, Parodi G, Pimentel ML, Wang J, Fiorentino A, Rezaie A, Pimentel M, Mathur R. Leite G, et al. Sci Rep. 2022 Apr 14;12(1):6231. doi: 10.1038/s41598-022-10132-z. Sci Rep. 2022. PMID: 35422064 Free PMC article.
In a cross-sectional study, current smokers (CS, n = 24) were identified and matched to never-smokers (NS, n = 27) and ex-smokers (XS, n = 27) by age ( 5 years), body mass index (BMI, 3 kg/m(2)), and sex. Current antibiotic users were excluded. The duodenal luminal micr …
In a cross-sectional study, current smokers (CS, n = 24) were identified and matched to never-smokers (NS, n = 27) and ex-smokers (XS, n = 2 …
74 results