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- Author:
- Nava, Gerardo M., et al. ; Flores-Sosa, Angel R.; Soto-Magaña, Diana; Gonzalez-de la Vara, Luis E.; Sanchez-Segura, Lino; Bah, Moustapha; Rivera-Pastrana, Dulce M.; Mercado-Silva, Edmundo M.; Show all 8 Authors
- Source:
- Postharvest biology and technology 2021 v.180 pp. 111618
- ISSN:
- 0925-5214
- Subject:
- anthocyanins; blackberries; color; cultivars; fluorescence; fruits; mechanical damage; microscopy; models; transportation; vibration
- Abstract:
- ... Red Drupelet Reversion (RDR) in blackberry is a physiological disorder where numerous fruit drupelets regress to red from black color during post-harvest handling. The specific mechanism causing RDR is still unknown; however, numerous studies have suggested that anthocyanin contents could be involved in this phenomenon. Recently, it has been reported that RDR in cultivars ‘Ouachita’, ‘Triple Crown ...
- DOI:
- 10.1016/j.postharvbio.2021.111618
- https://dx.doi.org/10.1016/j.postharvbio.2021.111618
- Author:
- Nava, Gerardo M., et al. ; Aguilar, Tania; Olvera-Ramírez, Andrea M.; Ronquillo, Dolores; Camacho, Mariela; Zavala, Gerardo A.; Caamaño, María C.; Acevedo-Whitehouse, Karina; Rosado, Jorge L.; García, Olga P.; Show all 10 Authors
- Source:
- Childhood obesity 2020 v.16 no.5 pp. 358-366
- ISSN:
- 2153-2176
- Subject:
- C-reactive protein; DNA; Enterococcaceae; Lactobacillaceae; blood sampling; body composition; childhood obesity; cross-sectional studies; digestive system; glucose; insulin; interleukin-10; interleukin-6; intestinal microorganisms; leptin; lipid composition; waist; Mexico
- Abstract:
- ... Background: Differences in gut microbiota composition have been associated with obesity and metabolic alterations in children. The aim of this study was to analyze the abundance of the main bacterial families of the gut among children according to their body composition and metabolic markers. Methods: A cross-sectional study was conducted with 93 school-aged children (8.4 ± 1.6 years old). Anthrop ...
- DOI:
- 10.1089/chi.2019.0312
- https://dx.doi.org/10.1089/chi.2019.0312
- Author:
- Nava, Gerardo M., et al. ; Resendiz-Nava, Carolina N.; Orozco-Mosqueda, Guadalupe E.; Mercado-Silva, Edmundo M.; Flores-Robles, Susana; Silva-Rojas, Hilda V.; Show all 6 Authors
- Source:
- Foods 2020 v.9 no.3
- ISSN:
- 2304-8158
- Subject:
- Cyclospora cayetanensis; Japan; animal pathogens; detection limit; farms; genes; oocysts; phylogeny; polymerase chain reaction; rapid methods; traceability; China; Mexico; Peru
- Abstract:
- ... Due to recent outbreaks of cyclosporiasis associated with consumption of fresh berries, producers are demanding modern microbiological tools for the rapid and accurate identification of the human pathogen Cyclospora cayetanensis in berries and environmental samples. The aim of the present work was to develop a molecular tool based on a PCR approach for the rapid and accurate detection of C. cayeta ...
- DOI:
- 10.3390/foods9030261
- https://dx.doi.org/10.3390/foods9030261
- Author:
- Nava, Gerardo M., et al. ; Regalado-Pineda, Iván D.; Rodarte-Medina, Rene; Resendiz-Nava, Carolina N.; Saenz-Garcia, Cinthia E.; Castañeda-Serrano, Pilar; Show all 6 Authors
- Source:
- Foods 2020 v.9 no.3
- ISSN:
- 2304-8158
- Subject:
- Salmonella enterica; autumn; chicken meat; food pathogens; longitudinal studies; monitoring; odds ratio; spring; summer; winter; Mexico
- Abstract:
- ... Worldwide, chicken meat is considered one of the main sources of Salmonella enterica in humans. To protect consumers from this foodborne pathogen, international health authorities recommend the establishment of continuous Salmonella surveillance programs in meat. However, these programs are scarce in many world regions; thus, the goal of the present study was to perform a longitudinal surveillance ...
- DOI:
- 10.3390/foods9030264
- https://dx.doi.org/10.3390/foods9030264
- Author:
- Nava, Gerardo M., et al. ; Amaya-Cruz, Diana; Peréz-Ramírez, Iza F.; Pérez-Jiménez, Jara; Reynoso-Camacho, Rosalía; Show all 5 Authors
- Source:
- Food research international 2019 v.126 pp. 108589
- ISSN:
- 0963-9969
- Subject:
- Hibiscus sabdariffa; adipocytes; body weight changes; byproducts; calyx; dietary fiber; fatty liver; functional foods; health effects assessments; high energy diet; hypertrophy; ingredients; insulin resistance; obesity; organic acids and salts; polyphenols; rats
- Abstract:
- ... The aim of the present study was to evaluate extractable (EPP), non-extractable polyphenols (NEPP) and organic acid in Roselle by-product, as well as its potential health beneficial effects in obesity control and their complication in rats fed with high caloric diet. Roselle by-product showed a higher content of dietary fiber and NEPP than Roselle calix, which was was a better source of EPP (P < . ...
- DOI:
- 10.1016/j.foodres.2019.108589
- https://dx.doi.org/10.1016/j.foodres.2019.108589
- Author:
- Nava, Gerardo M., et al. ; Madrigal‐Perez, Luis Alberto; Canizal‐Garcia, Melina; González‐Hernández, Juan Carlos; Reynoso‐Camacho, Rosalia; Ramos‐Gomez, Minerva; Show all 6 Authors
- Source:
- Yeast 2016 v.33 no.6 pp. 227-234
- ISSN:
- 0749-503X
- Subject:
- Saccharomyces cerevisiae; cell respiration; cell viability; energy; high energy diet; low calorie diet; models; oxygen consumption; resveratrol
- Abstract:
- ... The metabolic effects induced by resveratrol have been associated mainly with the consumption of high‐calorie diets; however, its effects with standard or low‐calorie diets remain unclear. To better understand the interactions between resveratrol and cellular energy levels, we used Saccharomyces cerevisiae as a model. Herein it is shown that resveratrol: (a) decreased cell viability in an energy‐d ...
- DOI:
- 10.1002/yea.3158
- http://dx.doi.org/10.1002/yea.3158
- Author:
- Nava, Gerardo M., et al. ; Esquivel-Hernandez, Yajaira; Ahumada-Cota, Ricardo E.; Attene-Ramos, Matias; Alvarado, Christine Z.; Castañeda-Serrano, Pilar; Show all 6 Authors
- Source:
- Trends in food science & technology 2016 v.51 pp. 106-110
- ISSN:
- 0924-2244
- Subject:
- chickens; consumer information; food industry; issues and policy; meat production; poultry industry; poultry meat; professionals; somatotropin; veterinarians
- Abstract:
- ... Global public concerns about “industrial agriculture” have widely disseminated amongst consumers the myth that chickens are fed growth hormones to produce meat more efficiently. This misleading information regarding the use of hormones in chickens is now a growing health concern among consumer groups.Worldwide, the poultry industry relies on science and technology to define new strategies to impro ...
- DOI:
- 10.1016/j.tifs.2016.01.013
- http://dx.doi.org/10.1016/j.tifs.2016.01.013
- Author:
- Nava, Gerardo M., et al. ; Carbonero, Franck; Ou, Junhai; Benefiel, Ann C.; O'Keefe, Stephen J.; Gaskins, H. Rex; Show all 6 Authors
- Source:
- Environmental microbiology reports 2012 v.4 no.3 pp. 307-315
- ISSN:
- 1758-2229
- Subject:
- African Americans; Africans; animal products; colon; colorectal neoplasms; genes; genetic variation; hydrogen sulfide; methane; resistant starch; restriction fragment length polymorphism; ribosomal RNA; statistical analysis
- Abstract:
- ... Reduced susceptibility to sporadic colorectal cancer in native Africans (NA) is correlated with low consumption of animal products and greater microbial production of colonic methane. In this context, two hydrogenotrophic microbial groups are of interest, methanogenic Archaea (MA) utilizing H2 to produce methane and sulfate‐reducing bacteria (SRB) generating hydrogen sulfide, which has been linked ...
- DOI:
- 10.1111/j.1758-2229.2012.00334.x
- PubMed:
- 23760794
- PubMed Central:
- PMC4258901
- http://dx.doi.org/10.1111/j.1758-2229.2012.00334.x
9. Microbial DNA extraction from intestinal biopsies is improved by avoiding mechanical cell disruption
- Author:
- Nava, Gerardo M., et al. ; Carbonero, Franck; Benefiel, Ann C.; Greenberg, Eugene; Gaskins, H. Rex; Show all 5 Authors
- Source:
- Journal of microbiological methods 2011 v.87 no.1 pp. 125-127
- ISSN:
- 0167-7012
- Subject:
- DNA; biopsy; intestines
- Abstract:
- ... Currently, standard protocols for microbial DNA extraction from intestinal tissues do not exist. We assessed the efficiency of a commercial kit with and without mechanical disruption. Better quality DNA was obtained without mechanical disruption. Thus, it appears that bead-beating is not required for efficient microbial DNA extraction from intestinal biopsies. ...
- DOI:
- 10.1016/j.mimet.2011.07.014
- PubMed:
- 21820015
- PubMed Central:
- PMC3168962
- http://dx.doi.org/10.1016/j.mimet.2011.07.014
10. Impact of antigenic and genetic drift on the serologic surveillance of H5N2 avian influenza viruses
- Author:
- Nava, Gerardo M, et al. ; Escorcia, Magdalena; Carrillo-Sánchez, Karol; March-Mifsut, Santiago; Chapa, Joaquin; Lucio, Eduardo; Show all 6 Authors
- Source:
- BMC veterinary research 2010 v.6 no.1 pp. 237
- ISSN:
- 1746-6148
- Subject:
- Influenza A virus; Norwalk virus; animal health; antigenic variation; antiserum; avian influenza; farms; genes; genetic drift; hemagglutination; immunologic techniques; monitoring; phylogeny; poultry; swine; vaccines; viral antigens; viruses
- Abstract:
- ... BACKGROUND: Serologic surveillance of Avian Influenza (AI) viruses is carried out by the hemagglutination inhibition (HI) test using reference reagents. This method is recommended by animal health organizations as a standard test to detect antigenic differences (subtypes) between circulating influenza virus, vaccine- and/or reference- strains. However, significant discrepancies between reference a ...
- DOI:
- 10.1186/1746-6148-6-57
- PubMed:
- 21172021
- PubMed Central:
- PMC3023700
- http://dx.doi.org/10.1186/1746-6148-6-57
- Author:
- Nava, Gerardo M., et al. ; Attene-Ramos, Matias S.; Gaskins, H. Rex; Richards, James D.; Show all 4 Authors
- Source:
- Veterinary microbiology 2009 v.137 no.3-4 pp. 345-353
- ISSN:
- 0378-1135
- Subject:
- chickens; poultry diseases; digestive system diseases; bacterial infections; disease prevention; diet therapy; dietary supplements; methyl hydroxy analog; formic acid; propionic acid; protective effect; chicks; biomarkers; ileum; intestinal microorganisms; bacterial colonization; Lactobacillus; enteropathogens; community structure; polymerase chain reaction; DNA fingerprinting
- Abstract:
- ... To compensate for possible decreases in animal production due to restrictions on the use of antibiotics as growth promoters, several non-antibiotic alternatives have been investigated. Organic acid supplementation (OAS) of feed or water has shown some promising results for affecting intestinal microbiota and reducing pathogenic bacteria in the gastrointestinal (GI) tract. However, few studies have ...
- DOI:
- 10.1016/j.vetmic.2009.01.037
- PubMed:
- 19269115
- http://dx.doi.org/10.1016/j.vetmic.2009.01.037
- Author:
- Nava, Gerardo M., et al. ; Nakamura, Noriko; Gaskins, H. Rex; Collier, Chad T.; Rai, Deshanie; Petschow, Bryon; Russell, W. Michael; Harris, Cheryl; Mackie, Roderick I.; Wampler, Jennifer L.; Walker, D. Carey; Show all 11 Authors
- Source:
- Applied and environmental microbiology 2009 v.75 no.4 pp. 1121-1128
- ISSN:
- 0099-2240
- Subject:
- Bifidobacterium; Clostridium; Enterobacteriaceae; Lactobacillus; bacterial communities; breast milk; digestive system; elderly; fluorescence in situ hybridization; functional properties; gel electrophoresis; genes; infancy; infant formulas; infants; ingredients; microorganisms; polymerase chain reaction; prebiotics; ribosomal RNA
- Abstract:
- ... Supplementation of infant formulas with prebiotic ingredients continues the effort to mimic functional properties of human milk. In this double-blind, controlled, 28-day study, healthy term infants received control formula (control group; n = 25) or control formula supplemented with polydextrose (PDX) and galactooligosaccharide (GOS) (4 g/liter) (PG4 group; n = 27) or with PDX, GOS, and lactulose ...
- DOI:
- 10.1128/AEM.02359-07
- PubMed:
- 19088307
- PubMed Central:
- PMC2643592
- http://dx.doi.org/10.1128/AEM.02359-07
- Author:
- Nava, Gerardo M., et al. ; Fastinger, Nathaniel D.; Karr-Lilienthal, Lisa K.; Spears, Julie K.; Swanson, Kelly S.; Zinn, Krista E.; Ohkuma, Kazuhiro; Kanahori, Sumiko; Gordon, Dennis T.; Fahey, George C. Jr.; Show all 10 Authors
- Source:
- Journal of the American College of Nutrition 2008 v.27 no.2 pp. 356-366
- ISSN:
- 0731-5724
- Subject:
- adults; feces; intestinal microorganisms; maltodextrins; prebiotics; digestive tract; digestion; fermentation; colon; short chain fatty acids; Bifidobacterium
- Abstract:
- ... OBJECTIVE: Resistant maltodextrin has been shown to increase fecal bulk by resisting digestion and being partially fermented by colonic bacteria to short-chain fatty acids (SCFA). The objective of this experiment was to determine potential prebiotic effects, gastrointestinal tolerance, and fecal characteristics of free-living humans fed a novel resistant maltodextrin or a normal maltodextrin contr ...
- DOI:
- 10.1080/07315724.2008.10719712
- PubMed:
- 18689571
- http://dx.doi.org/10.1080/07315724.2008.10719712