Gut PathogensPub Date : 2023-12-02DOI: 10.1186/s13099-023-00588-3
Ellis Kobina Paintsil, Linda Aurelia Ofori, Charity Wiafe Akenten, Andreas E Zautner, Joyce Mbwana, Neyaz Ahmed Khan, John P A Lusingu, Joseph Kaseka, Daniel T R Minja, Samwel Gesase, Anna Jaeger, Maike Lamshöft, Jürgen May, Kwasi Obiri-Danso, Ralf Krumkamp, Denise Dekker
{"title":"Antibiotic-Resistant Arcobacter spp. in commercial and smallholder farm animals in Asante Akim North Municipality, Ghana and Korogwe Town Council, Tanzania: a cross-sectional study.","authors":"Ellis Kobina Paintsil, Linda Aurelia Ofori, Charity Wiafe Akenten, Andreas E Zautner, Joyce Mbwana, Neyaz Ahmed Khan, John P A Lusingu, Joseph Kaseka, Daniel T R Minja, Samwel Gesase, Anna Jaeger, Maike Lamshöft, Jürgen May, Kwasi Obiri-Danso, Ralf Krumkamp, Denise Dekker","doi":"10.1186/s13099-023-00588-3","DOIUrl":"10.1186/s13099-023-00588-3","url":null,"abstract":"<p><strong>Background: </strong>Arcobacter species are considered emerging foodborne pathogens that can potentially cause serious infections in animals and humans. This cross-sectional study determined the frequency of potentially pathogenic Arcobacter spp. in both commercial and smallholder farm animals in Ghana and Tanzania. A total of 1585 and 1047 (poultry and livestock) samples were collected in Ghana and Tanzania, respectively. Selective enrichment media, along with oxidase and Gram testing, were employed for isolation of suspected Arcobacter spp. and confirmation was done using MALDI-TOF MS. Antibiotic susceptibility was assessed through disk diffusion method and ECOFFs were generated, for interpretation, based on resulting inhibition zone diameters.</p><p><strong>Results: </strong>The overall Arcobacter frequency was higher in Ghana (7.0%, n = 111) than in Tanzania (2.0%, n = 21). The frequency of Arcobacter in commercial farms in Ghana was 10.3% (n/N = 83/805), while in Tanzania, it was 2.8% (n/N = 12/430). Arcobacter was detected in only 3.6% (n/N = 28/780) of the samples from smallholder farms in Ghana and 1.5% (n/N = 9/617) of the samples from Tanzania. For commercial farms, in Ghana, the presence of Arcobacter was more abundant in pigs (45.1%, n/N = 37/82), followed by ducks (38.5%, n/N = 10/26) and quails (35.7%, n/N = 10/28). According to MALDI-TOF-based species identification, Arcobacter butzleri (91.6%, n/N = 121/132), Arcobacter lanthieri (6.1%, n/N = 8/132), and Arcobacter cryaerophilus (2.3%, n/N = 3/132) were the only three Arcobacter species detected at both study sites. Almost all of the Arcobacter from Ghana (98.2%, n/N = 109/111) were isolated during the rainy season. The inhibition zone diameters recorded for penicillin, ampicillin, and chloramphenicol allowed no determination of an epidemiological cut-off value. However, the results indicated a general resistance to these three antimicrobials. Multidrug resistance was noted in 57.1% (n/N = 12/21) of the Arcobacter isolates from Tanzania and 45.0% (n/N = 50/111) of those from Ghana. The type of farm (commercial or smallholder) and source of the sample (poultry or livestock) were found to be associated with multi-drug resistance.</p><p><strong>Conclusions: </strong>The high levels of MDR Arcobacter detected from farms in both countries call for urgent attention and comprehensive strategies to mitigate the spread of antimicrobial resistance in these pathogens.</p>","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"63"},"PeriodicalIF":4.2,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10693124/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138477512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Elevated plasma and bile levels of corisin, a microbiota-derived proapoptotic peptide, in patients with severe acute cholangitis.","authors":"Ryo Nishiwaki, Ichiro Imoto, Satoko Oka, Taro Yasuma, Hajime Fujimoto, Corina N D'Alessandro-Gabazza, Masaaki Toda, Tetsu Kobayashi, Hataji Osamu, Kodai Fujibe, Kenichiro Nishikawa, Tetsuya Hamaguchi, Natsuko Sugimasa, Midori Noji, Yoshiyuki Ito, Kenji Takeuchi, Isaac Cann, Yasuhiro Inoue, Toshio Kato, Esteban C Gabazza","doi":"10.1186/s13099-023-00587-4","DOIUrl":"10.1186/s13099-023-00587-4","url":null,"abstract":"<p><strong>Background: </strong>Acute cholangitis is a severe, life-threatening infection of the biliary system that requires early diagnosis and treatment. The Tokyo Guidelines recommend a combination of clinical, laboratory, and imaging findings for diagnosis and severity assessment, but there are still challenges in identifying severe cases that need immediate intervention. The microbiota and its derived products have been implicated in the pathogenesis of acute cholangitis. Corisin is a microbiome-derived peptide that induces cell apoptosis, acute tissue injury, and inflammation. This study aimed to evaluate the potential of plasma and bile corisin as a biomarker of acute cholangitis.</p><p><strong>Methods: </strong>Forty patients with acute cholangitis associated with choledocholithiasis or malignant disease were enrolled. Nine patients without acute cholangitis were used as controls. Corisin was measured by enzyme immunoassays in plasma and bile samples. Patients were classified into severe and non-severe groups. The associations of plasma and bile corisin with the clinical grade of acute cholangitis and other parameters were analyzed by univariate and multivariate regression analysis.</p><p><strong>Results: </strong>Plasma and bile corisin levels were significantly higher in patients with acute cholangitis than in controls. Patients with severe acute cholangitis had significantly higher plasma and bile corisin levels than those with non-severe form of the disease. Bile corisin level was significantly correlated with markers of inflammation, coagulation, fibrinolysis, and renal function. Univariate analysis revealed a significant association of bile corisin but a weak association of plasma corisin with the clinical grade of acute cholangitis. In contrast, multivariate analysis showed a significant relationship between plasma corisin level and the disease clinical grade. The receiver operating characteristic curve analysis showed low sensitivity but high specificity for plasma and bile corisin to detect the severity of acute cholangitis. The plasma and bile corisin sensitivity was increased when serum C-reactive protein level was included in the receiver operating characteristic curve analysis.</p><p><strong>Conclusions: </strong>Overall, these findings suggest that plasma and bile corisin levels may be useful biomarkers for diagnosing and monitoring acute cholangitis and that corisin may play a role in the pathophysiology of the disease by modulating inflammatory, coagulation and renal pathways.</p>","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"59"},"PeriodicalIF":4.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10688013/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138459485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gut PathogensPub Date : 2023-11-30DOI: 10.1186/s13099-023-00589-2
Karina Frahm Kirk, Jeppe Boel, Hans Linde Nielsen
{"title":"Vertebral osteomyelitis caused by Campylobacter jejuni in an immunocompetent patient.","authors":"Karina Frahm Kirk, Jeppe Boel, Hans Linde Nielsen","doi":"10.1186/s13099-023-00589-2","DOIUrl":"10.1186/s13099-023-00589-2","url":null,"abstract":"<p><strong>Background: </strong>Campylobacter jejuni is the leading cause of human bacterial gastroenteritis worldwide. However, systemic infection with C. jejuni is uncommon, and osteomyelitis caused by C. jejuni is extremely rare. Cultivation from spinal bone biopsies has not previously been reported in the literature.</p><p><strong>Case presentation: </strong>A 79-year-old immunocompetent male was admitted to the emergency department at Aalborg University Hospital in Denmark with lower back pain, fever and diarrhoea. A FecalSwab obtained upon admission was PCR-positive for Campylobacter spp, while an aerobic blood culture bottle was positive for C. jejuni (Time to detection: 70.4 h). A MRI of columna totalis showed osteomyelitis at L1/L2 with an epidural abscess from L1 to L2 with compression of the dura sack. The patient underwent spinal surgery with spondylodesis and decompression of L1/L2. The surgery was uncomplicated and the discus material was also culture positive for C. jejuni. The patient was treated with meropenem for a total duration of four weeks, followed by four weeks of oral treatment with clindamycin in tapered dosage. The patient recovered quickly following surgery and targeted antibiotic treatment with decreasing lumbar pain and biochemical response and was fully recovered at follow-up three months after end of treatment.</p><p><strong>Conclusions: </strong>While C. jejuni osteomyelitis is rare, it should still be suspected as a possible causative bacterial aetiology in patients with vertebral osteomyelitis, in particular when symptoms of diarrhoea is involved in the clinical presentation. Susceptibility testing is crucial due to emerging resistance, and targeted treatment strategies should rely upon such tests.</p>","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"61"},"PeriodicalIF":4.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10688457/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138459487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gut PathogensPub Date : 2023-11-30DOI: 10.1186/s13099-023-00585-6
Keqiang Chen, John McCulloch, Rodrigo Das Neves, Gisele Rodrigues, Wang-Ting Hsieh, Wanghua Gong, Teizo Yoshimura, Jiaqiang Huang, Colm O'hUigin, Simone Diflippantonio, Matthew McCollum, Georgette Jones, Scott K Durum, Giorgio Trinchieri, Ji Ming Wang
{"title":"Correction: The beneficial effects of commensal E. coli for colon epithelial cell recovery are related with Formyl peptide receptor 2 (Fpr2) in epithelial cells.","authors":"Keqiang Chen, John McCulloch, Rodrigo Das Neves, Gisele Rodrigues, Wang-Ting Hsieh, Wanghua Gong, Teizo Yoshimura, Jiaqiang Huang, Colm O'hUigin, Simone Diflippantonio, Matthew McCollum, Georgette Jones, Scott K Durum, Giorgio Trinchieri, Ji Ming Wang","doi":"10.1186/s13099-023-00585-6","DOIUrl":"10.1186/s13099-023-00585-6","url":null,"abstract":"","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"60"},"PeriodicalIF":4.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10687906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138459484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hypoxia exacerbates intestinal injury and inflammatory response mediated by myeloperoxidase during Salmonella Typhimurium infection in mice.","authors":"Qinfang Zhu, Ying Han, Xiaozhou Wang, Ruhan Jia, Jingxuan Zhang, Meiheng Liu, Wei Zhang","doi":"10.1186/s13099-023-00586-5","DOIUrl":"10.1186/s13099-023-00586-5","url":null,"abstract":"<p><strong>Background: </strong>High-altitude exposure can cause oxidative stress damage in the intestine, which leads to increased intestinal permeability and bacterial translocation, resulting in local and systemic inflammation. Control of infection is critically dependent on the host's ability to kill pathogens with reactive oxygen species (ROS). Myeloperoxidase (MPO) targets ROS in pathogens. This study aimed to investigate the effects of hypoxia on the colonic mucosal barrier and myeloperoxidase (MPO)-mediated innate immune response in the colon.</p><p><strong>Methods and results: </strong>Genetically engineered mice were exposed to a hypobaric oxygen chamber for 3 days and an inflammation model was established using Salmonella Typhimurium infection. We found that hypoxic exposure caused the development of exacerbated bacterial colitis and enhanced bacterial dissemination in MPO-deficient mice. Infection and disease severity were associated with significantly increased Ly6G<sup>+</sup> neutrophil and F4/80<sup>+</sup> macrophage counts in infected tissues, which is consistent with elevated proinflammatory cytokines and chemoattractant molecules. Hypoxia restrained antioxidant ability and MPO deficiency aggravated the respiratory burst in the colon.</p><p><strong>Conclusion: </strong>Hypoxia can damage the colonic mucosa. MPO mediates the innate immune response and regulates the mucosal and systemic inflammatory responses to Salmonella infection during hypoxia.</p>","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"62"},"PeriodicalIF":4.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10688069/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138459486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gut PathogensPub Date : 2023-11-28DOI: 10.1186/s13099-023-00582-9
Zhenzi Bai, Xiaonan Zhao, Chenghua Li, Chuanlun Sheng, Hongyan Li
{"title":"Retraction Note to: EV71 virus reduces Nrf2 activation to promote production of reactive oxygen species in infected cells.","authors":"Zhenzi Bai, Xiaonan Zhao, Chenghua Li, Chuanlun Sheng, Hongyan Li","doi":"10.1186/s13099-023-00582-9","DOIUrl":"10.1186/s13099-023-00582-9","url":null,"abstract":"","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"58"},"PeriodicalIF":4.2,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10683138/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138451361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gut PathogensPub Date : 2023-11-25DOI: 10.1186/s13099-023-00580-x
Shiqin Xu, Jinsong Wu, Ying Jin, Liyin Ji, Xuan Zou, Qinghua Hu, Tiejian Feng, Shuang Wu, Yixiang Jiang, Qiongcheng Chen, Huiqun Lu, Shuxiang Qiu, Huaisheng Chen, Min Jiang, Rui Cai, Yaqun Qiu, Xiaolu Shi
{"title":"Pathogenetic detection, retrospective and pathogenicity analysis of a fatal case of Vibrio vulnificus in Shenzhen, China.","authors":"Shiqin Xu, Jinsong Wu, Ying Jin, Liyin Ji, Xuan Zou, Qinghua Hu, Tiejian Feng, Shuang Wu, Yixiang Jiang, Qiongcheng Chen, Huiqun Lu, Shuxiang Qiu, Huaisheng Chen, Min Jiang, Rui Cai, Yaqun Qiu, Xiaolu Shi","doi":"10.1186/s13099-023-00580-x","DOIUrl":"10.1186/s13099-023-00580-x","url":null,"abstract":"<p><p>We report a 36-year-old male patient died of V. vulnificus-induced septicaemia and multiple organ failure syndrome after oyster consumption at a restaurant. We isolated and identified V. vulnificus vv16015 from the patient's blood sample and antibiotic susceptibility tests indicated sensitivity to all 21 antibiotics. Oyster samples were subsequently collected from the restaurant's supplier and three strains of V. vulnificus were isolated. Whole genome sequencing and analysis revealed vv16015 to be distantly related to these strains and confirmed that V. vulnificus contamination was present in the seafood of the restaurant and supplier. Using a Galleria mellonella larvae infection model, the virulence of vv16015 was determined to be higher than that of comparison strains isolated from a surviving patient (vv15018) and an oyster (vv220015). The human and environment distribution of V. vulnificus in Shenzhen is sporadic and heterogeneous, and vv16015 is highly virulent compared to other strains.</p>","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"57"},"PeriodicalIF":4.2,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10675978/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138440622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gut PathogensPub Date : 2023-11-17DOI: 10.1186/s13099-023-00584-7
Oyekunle John Oladosu, Banny Silva Barbosa Correia, Beatrice Grafl, Dieter Liebhart, Cornelia C Metges, Hanne Christine Bertram, Gürbüz Daş
{"title":"<sup>1</sup>H-NMR based-metabolomics reveals alterations in the metabolite profiles of chickens infected with ascarids and concurrent histomonosis infection.","authors":"Oyekunle John Oladosu, Banny Silva Barbosa Correia, Beatrice Grafl, Dieter Liebhart, Cornelia C Metges, Hanne Christine Bertram, Gürbüz Daş","doi":"10.1186/s13099-023-00584-7","DOIUrl":"10.1186/s13099-023-00584-7","url":null,"abstract":"<p><strong>Background: </strong>Gut infections of chickens caused by Ascaridia galli and Heterakis gallinarum are associated with impaired host performance, particularly in high-performing genotypes. Heterakis gallinarum is also a vector of Histomonas meleagridis that is often co-involved with ascarid infections. Here, we provide a first insight into the alteration of the chicken plasma and liver metabolome as a result of gastrointestinal nematode infections with concomitant histomonosis. <sup>1</sup>H nuclear magnetic resonance (<sup>1</sup>H-NMR) based-metabolomics coupled with a bioinformatics analysis was applied to explore the variation in the metabolite profiles of the liver (N = 105) and plasma samples from chickens (N = 108) experimentally infected with A. galli and H. gallinarum (+H. meleagridis). This was compared with uninfected chickens at different weeks post-infection (wpi 2, 4, 6, 10, 14, 18) representing different developmental stages of the worms.</p><p><strong>Results: </strong>A total of 31 and 54 metabolites were quantified in plasma and aqueous liver extracts, respectively. Statistical analysis showed no significant differences (P > 0.05) in any of the 54 identified liver metabolites between infected and uninfected hens. In contrast, 20 plasma metabolites including, amino acids, sugars, and organic acids showed significantly elevated concentrations in the infected hens (P < 0.05). Alterations of plasma metabolites occurred particularly in wpi 2, 6 and 10, covering the pre-patent period of worm infections. Plasma metabolites with the highest variation at these time points included glutamate, succinate, trimethylamine-N-oxide, myo-inositol, and acetate. Differential pathway analysis suggested that infection induced changes in (1) phenylalanine, tyrosine, and tryptophan metabolism, (2) alanine, aspartate and glutamate metabolism; and 3) arginine and proline metabolism (Pathway impact > 0.1 with FDR adjusted P-value < 0.05).</p><p><strong>Conclusion: </strong>In conclusion, <sup>1</sup>H-NMR based-metabolomics revealed significant alterations in the plasma metabolome of high performing chickens infected with gut pathogens-A. galli and H. gallinarum. The alterations suggested upregulation of key metabolic pathways mainly during the patency of infections. This approach extends our understanding of host interactions with gastrointestinal nematodes at the metabolic level.</p>","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"56"},"PeriodicalIF":4.2,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10655416/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136397220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gut PathogensPub Date : 2023-11-16DOI: 10.1186/s13099-023-00583-8
Sarah M Heston, Charis Shu En Lim, Chengsi Ong, Mei Chien Chua, Matthew S Kelly, Kee Thai Yeo
{"title":"Strain-resolved metagenomic analysis of the gut as a reservoir for bloodstream infection pathogens among premature infants in Singapore.","authors":"Sarah M Heston, Charis Shu En Lim, Chengsi Ong, Mei Chien Chua, Matthew S Kelly, Kee Thai Yeo","doi":"10.1186/s13099-023-00583-8","DOIUrl":"10.1186/s13099-023-00583-8","url":null,"abstract":"<p><strong>Background: </strong>Gut dysbiosis contributes to the high risk of bloodstream infection (BSI) among premature infants. Most prior studies of the premature infant gut microbiota were conducted in Western countries and prior to development of current tools for strain-resolved analysis.</p><p><strong>Methods: </strong>We performed metagenomic sequencing of weekly fecal samples from 75 premature infants at a single hospital in Singapore. We evaluated associations between clinical factors and gut microbiota composition using PERMANOVA and mixed effects linear regression. We used inStrain to perform strain-level analyses evaluating for gut colonization by BSI-causing strains.</p><p><strong>Results: </strong>Median (interquartile range) gestation was 27 (25, 29) weeks, and 63% of infants were born via Cesarean section. Antibiotic exposures (PERMANOVA; R<sup>2</sup> = 0.017, p = 0.001) and postnatal age (R<sup>2</sup> = 0.015, p = 0.001) accounted for the largest amount of variability in gut microbiota composition. Increasing postnatal age was associated with higher relative abundances of several common pathogens (Enterococcus faecalis: p < 0.0001; Escherichia coli: p < 0.0001; Klebsiella aerogenes: p < 0.0001; Klebsiella pneumoniae: p < 0.0001). Antibiotic exposures were generally associated with lower relative abundances of both frequently beneficial bacteria (e.g., Bifidobacterium species) and common enteric pathogens (e.g., Enterobacter, Klebsiella species). We identified strains identical to the blood culture isolate in fecal samples from 12 of 16 (75%) infants who developed BSI, including all infections caused by typical enteric bacteria.</p><p><strong>Conclusions: </strong>Antibiotic exposures were the dominant modifiable factor affecting gut microbiota composition in a large cohort of premature infants from South-East Asia. Strain-resolved analyses indicate that the gut is an important reservoir for organisms causing BSI among premature infants.</p>","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"55"},"PeriodicalIF":4.2,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10652614/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136397221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correlation between gut microbiota composition, enteric infections and linear growth impairment: a case-control study in childhood stunting in Pidie, Aceh, Indonesia.","authors":"Tristia Rinanda, Catur Riani, Anita Artarini, Lucy Sasongko","doi":"10.1186/s13099-023-00581-w","DOIUrl":"10.1186/s13099-023-00581-w","url":null,"abstract":"<p><strong>Background: </strong>Gut microbiota is pivotal in maintaining children's health and well-being. The ingestion of enteric pathogens and dysbiosis lead to Environmental Enteric Dysfunction (EED), which is essential in stunting pathogenesis. The roles of gut microbiome and enteric infections have not been explored comprehensively in relation to childhood stunting in Indonesia. This study aimed to determine the correlation between gut microbiota composition, enteric infections, and growth biomarker, Insulin-like Growth Factor 1 (IGF-1), in stunted children from Pidie, Aceh, Indonesia.</p><p><strong>Methods: </strong>This study was a case-control study involving 42 subjects aged 24 to 59 months, comprising 21 stunted children for the case and 21 normal children for the control group. The IGF-1 serum level was quantified using ELISA. The gut microbiome profiling was conducted using 16S rDNA amplicon sequencing. The expression of enteric pathogens virulence genes was determined using quantitative PCR (qPCR) assay. The correlations of observed variables were analysed using suitable statistical analyses.</p><p><strong>Results: </strong>The result showed that the IGF-1 sera levels in stunted were lower than those in normal children (p ≤ 0.001). The abundance of Firmicutes (50%) was higher than Bacteroidetes (34%) in stunted children. The gut microbiome profile of stunted children showed enriched genera such as Blautia, Dorea, Collinsella, Streptococcus, Clostridium sensu stricto 13, Asteroleplasma and Anaerostipes. Meanwhile the depleted genera comprised Prevotella, Lactococcus, Butyrivibrio, Muribaculaceae, Alloprevotella, Akkermansia, Enterococcus, Terrisporobacter and Turicibacter. The abundance of water biological contaminants such as Aeromonas, Stappiaceae, and Synechococcus was also higher in stunted children compared to normal children. The virulence genes expression of Enteroaggregative Escherichia coli (aaiC), Enterotoxigenic E. coli (estA), Enteropathogenic E. coli (eaeA), Shigella/Enteroinvasive E. coli (ipaH3) and Salmonella enterica (ompC) in stunted was higher than in normal children (p ≤ 0.001), which negatively correlated to height and level of IGF-1.</p><p><strong>Conclusion: </strong>The present study showed the distinctive gut microbiome profile of stunted and normal children from Pidie, Aceh, Indonesia. The gut microbiota of stunted children revealed dysbiosis, comprised several pro-inflammatory, metabolic abnormalities and high-fat/low-fiber diet-related taxa, and expressed virulence genes of enteric pathogens. These findings provide evidence that it is imperative to restore dysbiosis and preserve the balance of gut microbiota to support linear growth in children.</p>","PeriodicalId":12833,"journal":{"name":"Gut Pathogens","volume":"15 1","pages":"54"},"PeriodicalIF":4.3,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10636988/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72014136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}