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Rocca A, Komici K, Brunese MC, Pacella G, Avella P, Di Benedetto C, Caiazzo C, Zappia M, Brunese L, Vallone G. Quantitative ultrasound (QUS) in the evaluation of liver steatosis: data reliability in different respiratory phases and body positions. LA RADIOLOGIA MEDICA 2024; 129:549-557. [PMID: 38512608 PMCID: PMC11021279 DOI: 10.1007/s11547-024-01786-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/10/2024] [Indexed: 03/23/2024]
Abstract
Liver steatosis is the most common chronic liver disease and affects 10-24% of the general population. As the grade of disease can range from fat infiltration to steatohepatitis and cirrhosis, an early diagnosis is needed to set the most appropriate therapy. Innovative noninvasive radiological techniques have been developed through MRI and US. MRI-PDFF is the reference standard, but it is not so widely diffused due to its cost. For this reason, ultrasound tools have been validated to study liver parenchyma. The qualitative assessment of the brightness of liver parenchyma has now been supported by quantitative values of attenuation and scattering to make the analysis objective and reproducible. We aim to demonstrate the reliability of quantitative ultrasound in assessing liver fat and to confirm the inter-operator reliability in different respiratory phases. We enrolled 45 patients examined during normal breathing at rest, peak inspiration, peak expiration, and semi-sitting position. The highest inter-operator agreement in both attenuation and scattering parameters was achieved at peak inspiration and peak expiration, followed by semi-sitting position. In conclusion, this technology also allows to monitor uncompliant patients, as it grants high reliability and reproducibility in different body position and respiratory phases.
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Affiliation(s)
- Aldo Rocca
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Klara Komici
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Maria Chiara Brunese
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy.
| | - Giulia Pacella
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Pasquale Avella
- Department of General Surgery, Center for Hepatobiliary and Pancreatic Surgery, Pineta Grande Hospital, Castel Volturno, CE, Italy
| | - Chiara Di Benedetto
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Corrado Caiazzo
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Marcello Zappia
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Luca Brunese
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy
| | - Gianfranco Vallone
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, 86100, Campobasso, Italy
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Salazar N, Ponce-Alonso M, Garriga M, Sánchez-Carrillo S, Hernández-Barranco AM, Redruello B, Fernández M, Botella-Carretero JI, Vega-Piñero B, Galeano J, Zamora J, Ferrer M, de Los Reyes-Gavilán CG, Del Campo R. Fecal Metabolome and Bacterial Composition in Severe Obesity: Impact of Diet and Bariatric Surgery. Gut Microbes 2022; 14:2106102. [PMID: 35903014 PMCID: PMC9341356 DOI: 10.1080/19490976.2022.2106102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The aim of this study was to monitor the impact of a preoperative low-calorie diet and bariatric surgery on the bacterial gut microbiota composition and functionality in severe obesity and to compare sleeve gastrectomy (SG) versus Roux-en-Y gastric bypass (RYGB). The study also aimed to incorporate big data analysis for the omics results and machine learning by a Lasso-based analysis to detect the potential markers for excess weight loss. Forty patients who underwent bariatric surgery were recruited (14 underwent SG, and 26 underwent RYGB). Each participant contributed 4 fecal samples (baseline, post-diet, 1 month after surgery and 3 months after surgery). The bacterial composition was determined by 16S rDNA massive sequencing using MiSeq (Illumina). Metabolic signatures associated to fecal concentrations of short-chain fatty acids, amino acids, biogenic amines, gamma-aminobutyric acid and ammonium were determined by gas and liquid chromatography. Orange 3 software was employed to correlate the variables, and a Lasso analysis was employed to predict the weight loss at the baseline samples. A correlation between Bacillota (formerly Firmicutes) abundance and excess weight was observed only for the highest body mass indexes. The low-calorie diet had little impact on composition and targeted metabolic activity. RYGB had a deeper impact on bacterial composition and putrefactive metabolism than SG, although the excess weight loss was comparable in the two groups. Significantly higher ammonium concentrations were detected in the feces of the RYGB group. We detected individual signatures of composition and functionality, rather than a gut microbiota characteristic of severe obesity, with opposing tendencies for almost all measured variables in the two surgical approaches. The gut microbiota of the baseline samples was not useful for predicting excess weight loss after the bariatric process.
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Affiliation(s)
- Nuria Salazar
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Villaviciosa & Diet, Microbiota and Health Group. Institute of Health Research of the Principality of Asturias (ISPA), Oviedo, Spain
| | - Manuel Ponce-Alonso
- Department of Microbiology, Servicio de Microbiología. Hospital Universitario Ramón y Cajal, & Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), & CIBERINFECT, Madrid, Spain
| | - María Garriga
- Servicio de Endocrinología y Nutrición, Hospital Universitario Ramón y Cajal, & Instituto Ramón y Cajal de Investigación Sanitaria (IRyCIS), Madrid, Spain
| | | | | | - Begoña Redruello
- Servicios Científico-Técnicos, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Villaviciosa, Spain
| | - María Fernández
- Department of Technology and Biotechnology of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Villaviciosa & Molecular Microbiology Group, Institute of Health Research of the Principality of Asturias (ISPA), Oviedo, Spain
| | - José Ignacio Botella-Carretero
- Servicio de Endocrinología y Nutrición, Hospital Universitario Ramón y Cajal, & Instituto Ramón y Cajal de Investigación Sanitaria (IRyCIS), Madrid, Spain,Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain,Universidad de Alcalá, Madrid, Spain
| | - Belén Vega-Piñero
- Servicio de Endocrinología y Nutrición, Hospital Universitario Ramón y Cajal, & Instituto Ramón y Cajal de Investigación Sanitaria (IRyCIS), Madrid, Spain
| | - Javier Galeano
- Grupo de Sistemas Complejos, Universidad Politécnica de Madrid, Spain
| | - Javier Zamora
- Unidad de Bioestadística Clínica, Hospital Universitario Ramón y Cajal, & Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), & CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain & Women’s Health Research Unit. Queen Mary University of London, London, UK
| | - Manuel Ferrer
- Instituto de Catálisis, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Clara G de Los Reyes-Gavilán
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Villaviciosa & Diet, Microbiota and Health Group. Institute of Health Research of the Principality of Asturias (ISPA), Oviedo, Spain,CONTACT Clara G. de Los Reyes-Gavilán Department of Microbiology and Biochemistry of Dairy Products Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Villaviciosa & Diet, Microbiota and Health Group. Institute of Health Research of the Principality of Asturias (ISPA), Oviedo, Spain
| | - Rosa Del Campo
- Department of Microbiology, Servicio de Microbiología. Hospital Universitario Ramón y Cajal, & Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), & CIBERINFECT, Madrid, Spain,Universidad Alfonso X El Sabio, Villanueva de la Cañada, Spain,Rosa del Campo Department of Microbiology, Hospital Ramon y Cajal, Madrid, Spain
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Khajeh E, Aminizadeh E, Eslami P, Ramouz A, Kulu Y, Billeter AT, Nickel F, Müller-Stich BP, Mehrabi A. Outcomes of Bariatric Surgery in Obese Patients with Compensated Liver Cirrhosis. Surg Obes Relat Dis 2022; 18:727-737. [DOI: 10.1016/j.soard.2022.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/10/2022] [Accepted: 03/13/2022] [Indexed: 12/21/2022]
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