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| 1 | Evaluation and comparison of short chain fatty acids composition in gut diseases显示文摘BACKGROUND An altered (dysbiosis) and unhealthy status of the gut microbiota is usually responsible for a reduction of short chain fatty acids (SCFAs) concentration. SCFAs obtained from the carbohydrate fermentation processes are crucial in maintaining gut homeostasis and their determination in stool samples could provide a faster, reliable and cheaper method to highlight the presence of an intestinal dysbiosis and a biomarker for various gut diseases. We hypothesize that different intestinal diseases, such as celiac disease (CD), adenomatous polyposis (AP) and colorectal cancer (CRC) could display a particular fecal SCFAs’ signature. AIM To compare the fecal SCFAs’ profiles of CD, AP, CRC patients and healthy controls, using the same analytical method. METHODS In this cross-sectional study, we defined and compared the SCFAs’ concentration in fecal samples of 9 AP, 16 CD, 19 CRC patients and 16 healthy controls (HC). The SCFAs’ analysis were performed using a gas-chromatography coupled with mass spectrometry method. Data analysis was carried out using Wilcoxon ranksum test to assess pairwise differences of SCFAs’ profiles, partial least squaresdiscriminate analysis (PLS-DA) to determine the status membership based on distinct SCFAs’ profiles, and Dirichlet regression to determine factors influencing concentration levels of SCFAs. RESULTS We have not observed any difference in the SCFAs’ amount and composition between CD and healthy control. On the contrary, the total amount of SCFAs was significantly lower in CRC patients compared to HC (P = 0.044) and CD (P = 0.005). Moreover, the SCFAs’ percentage composition was different in CRC and AP compared to HC. In detail, HC displayed higher percentage of acetic acid (P value = 1.3 × 10-6) and a lower amount of butyric (P value = 0.02192), isobutyric (P value = 7.4 × 10-5), isovaleric (P value = 0.00012) and valeric (P value = 0.00014) acids compared to CRC patients. AP showed a lower abundance of acetic acid (P value = 0.00062) and higher percentages of propionic (P value = 0.00433) and isovaleric (P value = 0.00433) acids compared to HC. Moreover, AP showed higher levels of propionic acid (P value = 0.03251) and a lower level of isobutyric acid (P value = 0.00427) in comparison to CRC. The PLS-DA model demonstrated a significant separation of CRC and AP groups from HC, although some degree of overlap was observed between CRC and AP. CONCLUSION Analysis of fecal SCFAs shows the potential to provide a non-invasive means of diagnosis to detect patients with CRC and AP, while CD patients cannot be discriminated from healthy subjects. | Elena Niccolai Simone Baldi Federica Ricci Edda Russo Giulia Nannini Marta Menicatti Giovanni Poli Antonio Taddei Gianluca Bartolucci Antonino Salvatore Calabrò Francesco Claudio Stingo Amedeo Amedei | 2019 | World Journal of Gastroenterology2019，25，36： | 4 |
| 2 | Nitrogen Absorption and Respiration in White andBrown Peach Roots显示文摘 | Elena Baldi Christina E Wells Bruno Marangoni | 2010 | Journal of plant Nutrition2010，33，3： | 1 |
| 3 | Effect of ancient Khorasan wheat on gut microbiota,inflammation,and short-chain fatty acid production in patients with fibromyalgia显示文摘BACKGROUND Fibromyalgia(FM)syndrome is mainly characterized by widespread pain,sleeping disorders,fatigue,and cognitive dysfunction.In many cases,gastrointestinal distress is also reported,suggesting the potential pathogenic role of the gut microbiota(GM).The GM is deeply influenced by several environmental factors,especially the diet,and recent findings highlighted significant symptom improvement in FM patients following various nutritional interventions such as vegetarian diet,low-fermentable oligosaccharides,disaccharides,monosaccharides,and polyols based diets,gluten-free diet,and especially an ancient grain supplementation.In particular,a recent study reported that a replacement diet with ancient Khorasan wheat led to an overall improvement in symptom severity of FM patients.AIM To examine the effects of ancient Khorasan wheat on the GM,inflammation,and short-chain fatty acid production in FM patients.METHODS After a 2-wk run-in period,20 FM patients were enrolled in this randomized,double-blind crossover trial.In detail,they were assigned to consume either Khorasan or control wheat products for 8 wk and then,following an 8-wk washout period,crossed.Before and after treatments,GM characterization was performed by 16S rRNA sequencing while the fecal molecular inflammatory response and the short-chain fatty acids(SCFAs)were respectively determined with the Luminex MAGPIX detection system and a mass chromatography-mass spectrometry method.RESULTS The Khorasan wheat replacement diet,in comparison with the control wheat diet,had more positive effects on intestinal microbiota composition and on both the fecal immune and SCFAs profiles such as the significant increase of butyric acid levels(P=0.054),candidatus Saccharibacteria(P=9.95e-06)and Actinobacteria,and the reduction of Enterococcaceae(P=4.97e-04).Moreover,the improvement of various FM symptoms along with the variation of some gut bacteria after the Khorasan wheat diet have been documented;in fact we reported positive correlations between Actinobacteria and both Tiredness Symptoms Scale(P<0.001)and Functional Outcome of Sleep Questionnaire(P<0.05)scores,between Verrucomicrobiae and both Widespread Pain Index(WPI)+Symptom Severity scale(SS)(P<0.05)and WPI(P<0.05)scores,between candidatus Saccharibacteria and SS score(P<0.05),and between Bacteroidales and Sleep-Related and Safety Behaviour Questionnaire score(P<0.05).CONCLUSION The replacement diet based on ancient Khorasan wheat results in beneficial GM compositional and functional modifications that positively correlate with an improvement of FM symptomatology. | Simone Baldi Giuditta Pagliai Monica Dinu Leandro Di Gloria Giulia Nannini Lavinia Curini Marco Pallecchi Edda Russo Elena Niccolai Giovanna Danza Stefano Benedettelli Giovanna Ballerini Barbara Colombini Gianluca Bartolucci Matteo Ramazzotti Francesco Sofi Amedeo Amedei | 2022 | World Journal of Gastroenterology2022，28，18： | 1 |
| 4 | Production and diversity of volatile terpenes from plantson calcareous and siliceous soils:effect of soil nutrients显示文摘 | Elena Orme?o Virginie Baldy Christine Ballini | 2008 | J Chem Ecol2008，34，： | 1 |
| 5 | Vacuum impregnation modulates the metabolic activity of spinach leaves显示文摘 | Valentina Panarese Pietro Rocculi Elena Baldi | 2014 | Innovative Food Science and Emerging Technologies2014，26，12： | 1 |
| 6 | Effects of viremia and CD4 recovery on gut“microbiome-immunity”axis in treatment-na?ve HIV-1-infected patients undergoing antiretroviral therapy显示文摘BACKGROUND Human immunodeficiency virus type 1(HIV-1)infection is characterized by persistent systemic inflammation and immune activation,even in patients receiving effective antiretroviral therapy(ART).Converging data from many cross-sectional studies suggest that gut microbiota(GM)changes can occur throughout including human immunodeficiency virus(HIV)infection,treated by ART;however,the results are contrasting.For the first time,we compared the fecal microbial composition,serum and fecal microbial metabolites,and serum cytokine profile of treatment-na?ve patients before starting ART and after reaching virological suppression,after 24 wk of ART therapy.In addition,we compared the microbiota composition,microbial metabolites,and cytokine profile of patients with CD4/CD8 ratio<1(immunological non-responders[INRs])and CD4/CD8>1(immunological responders[IRs]),after 24 wk of ART therapy.AIM To compare for the first time the fecal microbial composition,serum and fecal microbial metabolites,and serum cytokine profile of treatment-na?ve patients before starting ART and after reaching virological suppression(HIV RNA<50 copies/m L)after 24 wk of ART.METHODS We enrolled 12 treatment-na?ve HIV-infected patients receiving ART(mainly based on integrase inhibitors).Fecal microbiota composition was assessed through next generation sequencing.In addition,a comprehensive analysis of a blood broad-spectrum cytokine panel was performed through a multiplex approach.At the same time,serum free fatty acid(FFA)and fecal short chain fatty acid levels were obtained through gas chromatography-mass spectrometry.RESULTS We first compared microbiota signatures,FFA levels,and cytokine profile before starting ART and after reaching virological suppression.Modest alterations were observed in microbiota composition,in particular in the viral suppression condition,we detected an increase of Ruminococcus and Succinivibrio and a decrease of Intestinibacter.Moreover,in the same condition,we also observed augmented levels of serum propionic and butyric acids.Contemporarily,a reduction of serum IP-10 and an increase of IL-8 levels were detected in the viral suppression condition.In addition,the same components were compared between IRs and INRs.Concerning the microflora population,we detected a reduction of Faecalibacterium and an increase of Alistipes in INRs.Simultaneously,fecal isobutyric,isovaleric,and 2-methylbutyric acids were also increased in INRs.CONCLUSION Our results provided an additional perspective about the impact of HIV infection,ART,and immune recovery on the'microbiome-immunity axis'at the metabolism level.These factors can act as indicators of the active processes occurring in the gastrointestinal tract.Individuals with HIV-1 infection,before ART and after reaching virological suppression with 24 wk of ART,displayed a microbiota with unchanged overall bacterial diversity;moreover,their systemic inflammatory status seems not to be completely restored.In addition,we confirmed the role of the GM metabolites in immune reconstitution. | Edda Russo Giulia Nannini Gaetana Sterrantino Seble Tekle Kiros Vincenzo Di Pilato Marco Coppi Simone Baldi Elena Niccolai Federica Ricci Matteo Ramazzotti Marco Pallecchi Filippo Lagi Gian Maria Rossolini Alessandro Bartoloni Gianluca Bartolucci Amedeo Amedei | 2022 | World Journal of Gastroenterology2022，28，6： | 0 |
| 7 | Effects of oncological treatments on semen quality in patients with testicular neoplasia or lymphoproliferative disorders显示文摘在年轻人的 Pretherapy 精子 cryopreservation 当前为癌症病人在好临床的实践指南被包括。这份报纸的目的在有阴囊的瘤形成或 lymphoproliferative 混乱的病人是在精液上构画出不同 oncological 治疗的效果优秀的,基于一所大公共医院的 Cryopreservation 中心的 8 年的经验。有阴囊的瘤形成的 261 个病人和经历了化疗或放射疗法和 pretherapy 精液 cryopreservation 的有 lymphoproliferative 混乱的 219 个病人被评估。精子和神经质的参数(刺激滤泡的荷尔蒙(FSH ) , luteinizing 荷尔蒙(LH ) ,睾丸激素, inhibin B 层次) 被估计在以前并且在癌症治疗的结束以后的 6, 12, 18, 24 和 36 个月。与 lymphoproliferative 混乱比在病人与恶意的阴囊的瘤形成在病人在很大程度上在精子收集,基线 FSH 水平和精子集中的时候被损害。精子发生上的有毒的效果在在癌症治疗的结束以后的 6 和 12 个月仍然是明显的,当精液的参数的改进在 18 个月以后被观察时。在结论,精子集中的全面增加被记录在在病人的多数的癌症治疗的结束以后的大约 18 个月,就算预言各单个的盒子 ‘ 的进化不是可能的; priori' 。为这个原因, pretherapy 精液 cryopreservation 应该在所有年轻癌症病人被考虑。 | Cataldo Di Bisceglie Angela Bertagna Emanuela R Composto Fabio Lanfranco Matteo Baldi Giovanna Motta Anna M Barberis Emanuela Napolitano Elena Castellano Chiara Manieri | 2013 | Asian Journal of Andrology2013，15，3： | 0 |
| 8 | Fecal metabolomic profiles: A comparative study of patients with colorectal cancer vs adenomatous polyps显示文摘BACKGROUND Colorectal cancer(CRC),the third most common cause of death in both males and females worldwide,shows a positive response to therapy and usually a better prognosis when detected at an early stage.However,the survival rate declines when the diagnosis is late and the tumor spreads to other organs.Currently,the measures widely used in the clinic are fecal occult blood test and evaluation of serum tumor markers,but the lack of sensitivity and specificity of these markers restricts their use for CRC diagnosis.Due to its high sensitivity and precision,colonoscopy is currently the gold-standard screening technique for CRC,but it is a costly and invasive procedure.Therefore,the implementation of custom-made methodologies including those with minimal invasiveness,protection,and reproducibility is highly desirable.With regard to other screening methods,the screening of fecal samples has several benefits,and metabolomics is a successful method to classify the metabolite shift in living systems as a reaction to pathophysiological influences,genetic modifications,and environmental factors.AIM To characterize the variation groups and potentially recognize some diagnostic markers,we compared with healthy controls(HCs)the fecal nuclear magnetic resonance(NMR)metabolomic profiles of patients with CRC or adenomatous polyposis(AP).METHODS Proton nuclear magnetic resonance spectroscopy was used in combination with multivariate and univariate statistical approaches,to define the fecal metabolic profiles of 32 CRC patients,16 AP patients,and 38 HCs well matched in age,sex,and body mass index.RESULTS NMR metabolomic analyses revealed that fecal sample profiles differed among CRC patients,AP patients,and HCs,and some discriminatory metabolites including acetate,butyrate,propionate,3-hydroxyphenylacetic acid,valine,tyrosine and leucine were identified.CONCLUSION In conclusion,we are confident that our data can be a forerunner for future studies on CRC management,especially the diagnosis and evaluation of the effectiveness of treatments. | Giulia Nannini Gaia Meoni Leonardo Tenori Maria Novella Ringressi Antonio Taddei Elena Niccolai Simone Baldi Edda Russo Claudio Luchinat Amedeo Amedei | 2021 | World Journal of Gastroenterology2021，27，38： | 0 |
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