Research Publications from Peer-Reviewed Journals

The Research Publications track research that is published across national and international peer-reviewed journals. The most recent articles are available ahead of print and searchable by Journal Title, Subject, USDA Grant Funding Agencies or FDA Grant Funding Agencies. The research publications are tracked across five subject areas: Bacterial Pathogens, Chemical Contaminants, Natural Toxins, Parasites, and Viruses.

Thu, 09/10/2020 - 22:07
BACKGROUND The contamination of milk by antibiotic residues represents risks to the health of the consumers, therefore they should be monitored. The objective of this study was to propose a methodology for the determination of Tylosin residues directly in fluid milk based on mid‐infrared spectroscopy associated to chemometrics, using Attenuated Total Reflection Fourier Transform Infrared (ATR‐...
Thu, 09/10/2020 - 18:01
Over the last decade, electrolyzed water (EW) produced by salt and tap water has gained importance due to its antimicrobial effects. Regarding to chlorine-based compounds, EW also used in post-harvest safety of food processing and sterilization of surfaces. The latest studies suggested that EW might act as wound healing agent due to anti-infective and cell proliferative properties. In this study...
Thu, 09/10/2020 - 16:00
This study investigated the prevalence, serovar distribution, antimicrobial resistance, and pulsed field gel electrophoresis (PFGE) typing of Salmonella enterica isolated from Lake Zapotlán, Jalisco, Mexico. Additionally, the association of the presence of Salmonella with physicochemical and environmental parameters was analyzed using Pearson correlation analysis and principal component analysis...
Thu, 09/10/2020 - 16:00
Cystic Fibrosis (CF) airways favor abnormal microbial development. Infections are considered as polymicrobial and competition can be observed between microorganisms. The current literature on bacterial competition in CF mostly consists of studies with limited numbers of strains, mainly focused on the major pathogens Pseudomonas aeruginosa (Pa) and Staphylococcus aureus (Sa) and does not give a...
Thu, 09/10/2020 - 16:00
BackgroundFebrile illness is the commonest cause of hospitalization in children <5 years in sub-Saharan Africa, and bacterial bloodstream infections and malaria are major causes of death.MethodsFrom March 2017 to July 2018, we enrolled 2,226 children aged 0–5 years hospitalized due to fever in four major public hospitals of Dar es Salaam, namely, Amana, Temeke, and Mwananyamala Regional...
Thu, 09/10/2020 - 16:00
We investigated the in vitro effects of Lactobacillus casei ZX633 on gut microorganism composition in infants with diarrhea. For this purpose, 103 feces samples from healthy infants (healthy group) and 300 diarrhea samples from infants (diarrhea group) were collected, and diarrhea feces were treated with L. casei ZX633, which was previously isolated from healthy infant feces (treatment group). We...
Thu, 09/10/2020 - 12:00
ABSTRACT This study evaluated the rehydration approach of mature corn grains as an alternative for high-moisture corn grain silage production in distinct corn hybrids, storage period, cultivation locations and kernel maturity at plant harvest. High-moisture corn was used as a control. The dry matter content and pH of the silage were measured, and the bacterial community associated with corn...
Thu, 09/10/2020 - 10:02
ABSTRACT Multiple epidemiological studies identify Dolosigranulum pigrum as a candidate beneficial bacterium based on its positive association with health, including negative associations with nasal/nasopharyngeal colonization by the pathogenic species Staphylococcus aureus and Streptococcus pneumoniae. Using a multipronged approach to gain new insights into D. pigrum function, we observed...
Thu, 09/10/2020 - 10:02
ABSTRACT Enrofloxacin is an important antibiotic used for prevention and treatment of Salmonella infection in poultry in many countries. However, oral administration of enrofloxacin may lead to the alterations in the microbiota and metabolome in the chicken intestine, thereby reducing colonization resistance to the Salmonella infection. To study the effect of enrofloxacin on Salmonella in the...
Thu, 09/10/2020 - 10:02
We report the complete genome sequence of P22-like Salmonella enterica serovar Typhimurium phage MG40, whose prophage repressor specificity is different from that of other known temperate phages.
Thu, 09/10/2020 - 10:02
Aspergillus flavus and Aspergillus parasiticus produce carcinogenic aflatoxins during crop infection, with extensive variations in production among isolates, ranging from atoxigenic to highly toxigenic. Here, we report draft genome sequences of one A. parasiticus isolate and nine A. flavus isolates from field environments for use in comparative, functional, and phylogenetic studies.
Thu, 09/10/2020 - 08:05
Food has a major impact on all aspects of health. Recent data suggest that food composition can also affect susceptibility to infections by enteropathogenic bacteria. Here, we discuss how food may alter the microbiota as well as mucosal defenses and how this can affect infection. Salmonella Typhimurium diarrhea serves as a paradigm, and complementary evidence comes from other pathogens. We...
Thu, 09/10/2020 - 08:05
Bacteria are highly interactive and possess an extraordinary repertoire of intercellular communication and social behaviors, including quorum sensing (QS). QS has been studied in detail at the molecular level, so mechanistic details are well understood in many species and are often involved in virulence. The use of different animal host models has demonstrated QS-dependent control of virulence...
Thu, 09/10/2020 - 08:04
Many volatile organic compounds (VOCs) associated with industry cause adverse health effects, but less is known about the physiological effects of biologically produced volatiles. This review focuses on the VOCs emitted by fungi, which often have characteristic moldy or “mushroomy” odors. One of the most common fungal VOCs, 1-octen-3-ol, is a semiochemical for many arthropod species and also...
Thu, 09/10/2020 - 08:03
L. Byrne et al. Signs and symptoms of Shiga toxin–producing Escherichia coli (STEC) serogroup O157:H7 infection range from mild gastrointestinal to bloody diarrhea and hemolytic uremic syndrome (HUS). We assessed the association between Shiga toxin gene (stx) subtype and disease severity for »3,000 patients with STEC O157:H7 in England during 2009–2019. Odds of bloody diarrhea, HUS, or both, were...
Thu, 09/10/2020 - 06:16
Author(s): Xingning Xiao, Wen Wang, Jianmin Zhang, Ming Liao, Chase Rainwater, Hua Yang, Yanbin Li A quantitative microbial risk assessment (QMRA) model was developed to investigate the health risk associated with Salmonella contamination in yellow-feathered broiler chicken supply chain in China extending from the farm to home consumption. A baseline model was developed based on most common...
Thu, 09/10/2020 - 06:15
Author(s): Aleksandra Duda-Chodak, Marcin Lukasiewicz, Gabriela Zięć, Adam Florkiewicz, Agnieszka Filipiak-Florkiewicz COVID-19 is a pandemic disease that has paralyzed social life and the economy around the world since the end of 2019, and which has so far killed nearly 300,000 people. The rapidity of its spread and the lack of detailed research on the course and methods of transmission...
Thu, 09/10/2020 - 06:14
Author(s): Nail Altunay, Konstantin P. Katin, Nevcihan Gürsoy, Adil Elik, Selçuk Şimşek, Savaş Kaya A green, simple, and cheap analytical approach for extraction, preconcentration, and determination of aflatoxin B1 (AFB1) in food samples based on vortex-assisted room temperature ionic liquid-based microextraction (VA-RTIL-ME) was presented. Important parameters including pH, metal amount, ligand...
Thu, 09/10/2020 - 06:14
Author(s): Yinjie Niu, Baihan Liu, Chang Sun, Lili Zhao, Hongyan Chen Duck hepatitis A virus type 1 (DHAV-1) disease causes significant economic losses to the duck industry. Duck enteritis virus (DEV) is frequently used as a viral vector for aquatic poultry vaccination, but no recombinan DEV expressing DHAV-1 VP0 has been developed. In this study, we established a system for rescuing the DEV C-...
Thu, 09/10/2020 - 06:12
Author(s): Yeben Ma, Xuebin Xu, Yuan Gao, Zeqiang Zhan, Chenggang Xu, Xiaoyun Qu, Zhengquan Chen, Jie Bai, Ming Liao, Jianmin Zhang In this study, 205 Salmonella enterica serovar Corvallis strains were obtained from humans and foods from Guangdong, Guangxi, and Shanghai in China from 2009 to 2017 to assess drug resistance and molecular epidemiology. These isolates displayed high rates of...
Thu, 09/10/2020 - 06:11
Author(s): Bihong He, Wei Wang, Rongyue Geng, Zhe Ding, Dongxia Luo, Junli Qiu, Guodong Zheng, Qiaohui Fan The activity and fate of heavy metals (HMs) from mining and smelting activities in farmland soil is of great significance to effectively prevent the excessive enrichment of HMs in crops. This study focuses on Baiyin area, a typical mining city in northwest China. In this example, the sources...
Thu, 09/10/2020 - 06:11
Author(s): Xianlei Jiang, Xupeng Xing, Yingbing Zhang, Chengtu Zhang, Ying Wu, Yongzhong Chen, Ru Meng, Huiqun Jia, Yuyao Cheng, Yong Zhang, Jianmin Su Lead, a common metallic contaminant, is widespread in the living environment, and has deleterious effects on the reproductive systems of humans and animals. Although numerous toxic effects of lead have been reported, the effects and underlying...
Thu, 09/10/2020 - 04:02
In view of the potential harm caused by illegal feeding of clenbuterol (CLB) in the livestock industry, herein, a novel ratiometric fluorescent probe based on graphene quantum dots (GQDs)@[Ru(bpy)3]2+ was elaborately constructed for CLB detection. In this probe, GQDs acted as response signals, and their fluorescence was remarkably quenched by CLB through the diazotization-coupling reaction. As...
Thu, 09/10/2020 - 02:03
Gibberella ear rot (GER) caused by Fusarium graminearum (teleomorph Gibberella zeae), is one of the most devastating diseases in maize that not only severely reduces grain yield but also contaminates the kernels with potent mycotoxins which is harmful to livestock and humans. Identification of stable quantitative trait loci (QTL) and candidate genes conferring resistance is a promising strategy...
Thu, 09/10/2020 - 02:02
The main objective of this study was to evaluate the effects of sodium sulfite (SoS) treatment of maize and its impact on the porcine immune system in the presence of an LPS-induced systemic inflammation. Control maize (CON) and Fusarium-toxin contaminated maize (FUS) were wet-preserved (20% moisture) for 79 days with (+) or without (−) SoS and then included at 10% in a diet, resulting in four...
Thu, 09/10/2020 - 02:02
In the food supply chain, quality control has a very important role in maintaining customer confidence. In the EU, food safety aspects are strictly regulated; however, composition requirements and standard control methods are generally undefined. The rapidly increasing wild boar population has a growing market share in venison or game meat production. Several methods have been described for...
Thu, 09/10/2020 - 00:00
Multilamellar bodies (MLBs), structures composed of concentric membrane layers, are known to be produced by different protozoa, including species of ciliates, free-living amoebae, and Dictyostelium discoideum social amoebae. Initially believed to be metabolic waste, potential roles like cell communication and food storage have been suggested for D. discoideum MLBs, which could be useful for the...
Thu, 09/10/2020 - 00:00
The feed supplementation of probiotic microorganisms is a promising method for detoxification of ochratoxin A (OTA) in poultry. The aim of the study was to investigate the effect of newly elaborated synbiotics on the turkey performance, the intestinal microbiota and its enzymatic activity in turkeys (0&ndash;15 weeks) fed OTA contaminated feed (198.6&ndash;462.0 &micro;g/kg) compared...
Wed, 09/09/2020 - 22:07
Background Soybean meal (SBM) is the most common protein source used in the poultry and livestock industries. It has high‐quality protein, an excellent amino acid (AA) profile, and positive isoflavone properties. However, the antigen proteins in SBM are unsuitable for young animals. The objective of this study was to identify a Bacillus strain that can degrade soybean antigen proteins and...
Wed, 09/09/2020 - 16:00
Aeromonas hydrophila is an aquatic pathogen of freshwater fish. The emergence of widespread antimicrobial-resistance strains of this pathogen has caused increasing rates of fish infections. Our previous research reported that A. hydrophila yeeY, a LysR-type transcriptional regulator (LTTR), negatively regulated furazolidone (FZ) resistance. Although, it’s intrinsic regulatory mechanism is still...
Wed, 09/09/2020 - 16:00
Chelator-assisted phytoremediation is an economical, sustainable, and ecologically friendly method of extracting heavy metals and metalloids from the soil. Organic chelators are thought to enhance metal availability and mobility in contaminated media, thereby improving phytoextraction. The aim of the present study was to examine whether exogenous application of glutamic acid (GA) could improve...
Wed, 09/09/2020 - 16:00
It has been previously shown that RskA, the anti-Sigma factor K of Mycobacterium tuberculosis, inhibits SigK and that mutations in RskA promote high expression of the SigK regulon. The latter observation led us to hypothesize that RskA mutations lead to loss of the anti-Sigma factor function. In this report, we used natural and artificial mutations in RskA to determine the basis of the SigK-RskA...
Wed, 09/09/2020 - 16:00
Genomic reassortment of segmented RNA virus strains is an important evolutionary mechanism that can generate novel viruses with profound effects on human and animal health, such as the H1N1 influenza pandemic in 2009 arising from reassortment of two swine influenza viruses. Reassortment is not restricted to influenza virus and has been shown to occur in members of the order Bunyavirales. The...
Wed, 09/09/2020 - 16:00
The food-borne pathogen Salmonella enterica serovar Typhimurium (S. Typhimurium) causes self-limiting gastroenteritis in humans and is not easily eradicated because it often attaches to suitable surfaces to form biofilms that have high resistance to disinfectants and antimicrobials. To develop an alternative strategy for the treatment of biofilms, it is necessary to further explore the effects of...
Wed, 09/09/2020 - 14:04
Salmonella Infantis is a major public health concern and has become established in the broiler sector in some European countries, as well as globally, and is frequently multidrug resistant (MDR). Three broiler farms in England and Wales, which had incursions of MDR S. Infantis between 2013 and 2017, were investigated longitudinally. The company feed mill and two associated hatcheries were...
Wed, 09/09/2020 - 14:04
The frequent occurrence of food safety incidents has given rise to unprecedented concern about food contamination issues for both consumers and the industry. Various contaminations in food pose serious threats to food safety and human health. Many detection methods were studied to address the challenge. Recently, biosensors relying on deoxyribonucleic acid (DNA)-functionalized nanoparticles have...
Wed, 09/09/2020 - 14:03
Aspergillus flavus is the main aflatoxin producer in food and feed and has wide ecological niches. Contamination of food products such as pistachio nuts and aflatoxin secretion directly affects food safety and international food product trades. Abilities of 13 yeast strains isolated from 200 soil and pistachio nut samples collected in Iranian orchards to reduce the growth of A. flavus as well as...
Wed, 09/09/2020 - 14:03
A QuEChERS multi-residue GC-MS/MS method was developed for determining 160 pesticides in fresh edible snails. The method was validated according to the EU guidance SANTE/12682/2019. Twenty-seven different pesticides were quantified in the 824 samples analysed. Of these, 22.09% contained pesticide residues; in one case six different pesticides. The most frequently quantified pesticides were...
Wed, 09/09/2020 - 10:02
ABSTRACT Microorganisms and their communities on foods are important determinants and indicators of food safety and quality. Despite growing interests in studying food and food-related microbiomes, how effective and practical it is to glean various food safety and quality information from food commodity microbiomes remains underinvestigated. Microbiomes of retail chicken breast from 4 processing...
Wed, 09/09/2020 - 10:02
ABSTRACT Gene essentiality is altered during polymicrobial infections. Nevertheless, most studies rely on single-species infections to assess pathogen gene essentiality. Here, we use genome-scale metabolic models (GEMs) to explore the effect of coinfection of the diarrheagenic pathogen Vibrio cholerae with another enteric pathogen, enterotoxigenic Escherichia coli (ETEC). Model predictions showed...
Wed, 09/09/2020 - 10:01
YggS (COG0325) is a pyridoxal 5'-phosphate (PLP)-binding protein proposed to be involved in homeostasis of B6 vitamers. In Salmonella enterica, lack of yggS resulted in phenotypes that were distinct, and others that were similar, to those of a yggS mutant of Escherichia coli. Like other organisms, yggS mutants of S. enterica accumulate endogenous pyridoxine 5'-phosphate (PNP). Data herein show...
Wed, 09/09/2020 - 10:01
Pathogenic Vibrios use many different approaches to subvert, attack, and undermine the host response. The toxins they produce are often responsible for the devastating effects associated with their diseases. These toxins target a variety of host proteins, which leads to deleterious effects including dissolution of cell organelle integrity and inhibition of protein secretion. Becoming increasingly...
Wed, 09/09/2020 - 10:01
Phenotypic testing for drug susceptibility of Mycobacterium tuberculosis is critical to basic research and managing the evolving problem of antimicrobial resistance in tuberculosis management, but remains a specialized technique to which access is severely limited. Here, we report on the development and validation of an improved phage-mediated detection system for M. tuberculosis. We incorporated...
Wed, 09/09/2020 - 08:02
by Malathi Banda, Karen L. McKim, Meagan B. Myers, Masahiro Inoue, Barbara L. Parsons A model that recapitulates development of acquired therapeutic resistance is needed to improve oncology drug development and patient outcomes. To achieve this end, we established methods for the preparation and growth of spheroids from primary human lung adenocarcinomas, including methods to culture, passage,...
Wed, 09/09/2020 - 08:02
The molecular environment of the host can have profound effects on the behavior of resident bacterial species. We recently established how the sensing and response of enterohemorrhagic Escherichia coli (EHEC) to d-serine (d-Ser) resulted in down-regulation of type 3 secretion system-dependent colonization, thereby avoiding unfavorable environments abundant in this toxic...
Wed, 09/09/2020 - 06:10
Author(s): Radu C. Racovita, Catinca Secuianu, Florentina Israel-Roming Polycyclic aromatic hydrocarbons (PAHs) are known or potential carcinogens occurring in foodstuffs during smoking processes, among others. The European Commission (EC) has defined clear limits for benzo[a]pyrene and the total concentration of benz[a]anthracene, chrysene, benzo[b]fluoranthene, and benzo [a]pyrene – known as...
Wed, 09/09/2020 - 06:10
Author(s): Yijia Deng, Yaling Wang, Qi Deng, Lijun Sun, Rundong Wang, Lin Ye, Sen Tao, Jianmeng Liao, Ravi Gooneratne Dried fish are important dietary protein and income sources in Zhanjiang, China. Mycotoxins produced by pathogenic fungi that contaminate fish during processing can cause considerable hazard to consumer health. This study reports fungal diversity, total fungal counts and mycotoxin...
Wed, 09/09/2020 - 06:10
Author(s): Sini Reuna, Ari Väisänen The major element and heavy metal concentrations of post-precipitated sewage sludge (PPS) and its ash residue (PPA) were determined using microwave digestion followed by inductively coupled plasma optical emission spectrometry (ICP-OES) and mass spectrometry (ICP-MS). To the best of our knowledge, this has not been previously done. In both PPS and PPA the heavy...
Wed, 09/09/2020 - 06:08
Author(s): Tolgahan Kocadağlı, Lisa Methven, Avinash Kant, Jane K. Parker The aim of this study was to increase the baked flavour of low-acrylamide potato products. Strecker aldehydes and pyrazines make an important contribution to the flavour of potato products and are formed alongside acrylamide in the Maillard reaction. However, the Maillard reaction can be directed in favour of aroma...

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