Novel equation to determine the hepatic triglyceride concentration in humans by MRI: diagnosis and monitoring of NAFLD in obese patients before and after bariatric surgery.

Abstract:

BACKGROUND:Non-alcoholic fatty liver disease (NAFLD) is caused by abnormal accumulation of lipids within liver cells. Its prevalence is increasing in developed countries in association with obesity, and it represents a risk factor for non-alcoholic steatohepatitis (NASH), cirrhosis and hepatocellular carcinoma. Since NAFLD is usually asymptomatic at diagnosis, new non-invasive approaches are needed to determine the hepatic lipid content in terms of diagnosis, treatment and control of disease progression. Here, we investigated the potential of magnetic resonance imaging (MRI) to quantitate and monitor the hepatic triglyceride concentration in humans. METHODS:A prospective study of diagnostic accuracy was conducted among 129 consecutive adult patients (97 obesity and 32 non-obese) to compare multi-echo MRI fat fraction, grade of steatosis estimated by histopathology, and biochemical measurement of hepatic triglyceride concentration (that is, Folch value). RESULTS:MRI fat fraction positively correlates with the grade of steatosis estimated on a 0 to 3 scale by histopathology. However, this correlation value was stronger when MRI fat fraction was linked to the Folch value, resulting in a novel equation to predict the hepatic triglyceride concentration (mg of triglycerides/g of liver tissue = 5.082 + (432.104 * multi-echo MRI fat fraction)). Validation of this formula in 31 additional patients (24 obese and 7 controls) resulted in robust correlation between the measured and estimated Folch values. Multivariate analysis showed that none of the variables investigated improves the Folch prediction capacity of the equation. Obese patients show increased steatosis compared to controls using MRI fat fraction and Folch value. Bariatric surgery improved MRI fat fraction values and the Folch value estimated in obese patients one year after surgery. CONCLUSIONS:Multi-echo MRI is an accurate approach to determine the hepatic lipid concentration by using our novel equation, representing an economic non-invasive method to diagnose and monitor steatosis in humans.

journal_name

BMC Med

journal_title

BMC medicine

authors

Jiménez-Agüero R,Emparanza JI,Beguiristain A,Bujanda L,Alustiza JM,García E,Hijona E,Gallego L,Sánchez-González J,Perugorria MJ,Asensio JI,Larburu S,Garmendia M,Larzabal M,Portillo MP,Aguirre L,Banales JM

doi

10.1186/s12916-014-0137-y

subject

Has Abstract

pub_date

2014-08-26 00:00:00

pages

137

issn

1741-7015

pii

s12916-014-0137-y

journal_volume

12

pub_type

杂志文章
  • Thymic size is increased by infancy, but not pregnancy, nutritional supplementation in rural Gambian children: a randomized clinical trial.

    abstract:BACKGROUND:Thymic size in early infancy predicts subsequent survival in low-income settings. The human thymus develops from early gestation, is most active in early life and is highly sensitive to malnutrition. Our objective was to test whether thymic size in infancy could be increased by maternal and/or infant nutriti...

    journal_title:BMC medicine

    pub_type: 杂志文章,随机对照试验

    doi:10.1186/s12916-019-1264-2

    authors: Moore SE,Fulford AJC,Sosseh F,Nshe P,Darboe MK,Prentice AM

    更新日期:2019-02-18 00:00:00

  • Efficacy of prosultiamine treatment in patients with human T lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis: results from an open-label clinical trial.

    abstract:BACKGROUND:Human T lymphotropic virus type I (HTLV-I)-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a chronic myelopathy characterized by motor dysfunction of the lower extremities and urinary disturbance. Immunomodulatory treatments are the main strategy for HAM/TSP, but several issues are associated...

    journal_title:BMC medicine

    pub_type: 临床试验,杂志文章

    doi:10.1186/1741-7015-11-182

    authors: Nakamura T,Matsuo T,Fukuda T,Yamato S,Yamaguchi K,Kinoshita I,Matsuzaki T,Nishiura Y,Nagasato K,Narita-Masuda T,Nakamura H,Satoh K,Sasaki H,Sakai H,Kawakami A

    更新日期:2013-08-15 00:00:00

  • Patterns of symptoms before a diagnosis of first episode psychosis: a latent class analysis of UK primary care electronic health records.

    abstract:BACKGROUND:The nature of symptoms in the prodromal period of first episode psychosis (FEP) remains unclear. The objective was to determine the patterns of symptoms recorded in primary care in the 5 years before FEP diagnosis. METHODS:The study was set within 568 practices contributing to a UK primary care health recor...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-019-1462-y

    authors: Chen Y,Farooq S,Edwards J,Chew-Graham CA,Shiers D,Frisher M,Hayward R,Sumathipala A,Jordan KP

    更新日期:2019-12-04 00:00:00

  • Smartphone apps for calculating insulin dose: a systematic assessment.

    abstract:BACKGROUND:Medical apps are widely available, increasingly used by patients and clinicians, and are being actively promoted for use in routine care. However, there is little systematic evidence exploring possible risks associated with apps intended for patient use. Because self-medication errors are a recognized source...

    journal_title:BMC medicine

    pub_type: 杂志文章,评审

    doi:10.1186/s12916-015-0314-7

    authors: Huckvale K,Adomaviciute S,Prieto JT,Leow MK,Car J

    更新日期:2015-05-06 00:00:00

  • Predicting the response to sorafenib in hepatocellular carcinoma: where is the evidence for phosphorylated extracellular signaling-regulated kinase (pERK)?

    abstract::The approval of sorafenib and active development of many other molecularly targeted agents in hepatocellular carcinoma (HCC) have presented a challenge to understand the mechanism of action of sorafenib and identify predictive biomarkers to select patients more likely to benefit from sorafenib. The preclinical study b...

    journal_title:BMC medicine

    pub_type: 社论

    doi:10.1186/1741-7015-7-42

    authors: Zhu AX

    更新日期:2009-08-24 00:00:00

  • Spatial modes for transmission of chikungunya virus during a large chikungunya outbreak in Italy: a modeling analysis.

    abstract:BACKGROUND:The spatial spread of many mosquito-borne diseases occurs by focal spread at the scale of a few hundred meters and over longer distances due to human mobility. The relative contributions of different spatial scales for transmission of chikungunya virus require definition to improve outbreak vector control re...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-020-01674-y

    authors: Guzzetta G,Vairo F,Mammone A,Lanini S,Poletti P,Manica M,Rosa R,Caputo B,Solimini A,Torre AD,Scognamiglio P,Zumla A,Ippolito G,Merler S

    更新日期:2020-08-07 00:00:00

  • Perceived morbidity and community burden after a Chikungunya outbreak: the TELECHIK survey, a population-based cohort study.

    abstract:BACKGROUND:Persistent disabilities are key manifestations of Chikungunya virus (CHIKV) infection, especially incapacitating polyarthralgia and fatigue. So far, little is known about their impact on health status. The present study aimed at describing the burden of CHIKV prolonged or late-onset symptoms on the self-perc...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/1741-7015-9-5

    authors: Gérardin P,Fianu A,Malvy D,Mussard C,Boussaïd K,Rollot O,Michault A,Gaüzere BA,Bréart G,Favier F

    更新日期:2011-01-14 00:00:00

  • Representation of people with comorbidity and multimorbidity in clinical trials of novel drug therapies: an individual-level participant data analysis.

    abstract:BACKGROUND:Clinicians are less likely to prescribe guideline-recommended treatments to people with multimorbidity than to people with a single condition. Doubts as to the applicability of clinical trials of drug treatments (the gold standard for evidence-based medicine) when people have co-existing diseases (comorbidit...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-019-1427-1

    authors: Hanlon P,Hannigan L,Rodriguez-Perez J,Fischbacher C,Welton NJ,Dias S,Mair FS,Guthrie B,Wild S,McAllister DA

    更新日期:2019-11-12 00:00:00

  • Improving comfort in people with dementia and pneumonia: a cluster randomized trial.

    abstract:BACKGROUND:Pneumonia in people with dementia has been associated with severe discomfort. We sought to assess the effectiveness of a practice guideline for optimal symptom relief for nursing home residents with dementia and pneumonia. METHODS:A single-blind, multicenter, cluster randomized controlled trial was conducte...

    journal_title:BMC medicine

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.1186/s12916-016-0663-x

    authors: van der Maaden T,de Vet HC,Achterberg WP,Boersma F,Schols JM,Mehr DR,Galindo-Garre F,Hertogh CM,Koopmans RT,van der Steen JT

    更新日期:2016-08-11 00:00:00

  • Migration and tuberculosis transmission in a middle-income country: a cross-sectional study in a central area of São Paulo, Brazil.

    abstract:BACKGROUND:Little is known about the impact of growing migration on the pattern of tuberculosis (TB) transmission in middle-income countries. We estimated TB recent transmission and its associated factors and investigated the presence of cross-transmission between South American migrants and Brazilians. METHODS:We stu...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-018-1055-1

    authors: Pescarini JM,Simonsen V,Ferrazoli L,Rodrigues LC,Oliveira RS,Waldman EA,Houben R

    更新日期:2018-04-30 00:00:00

  • How evidence-based is an 'evidence-based parenting program'? A PRISMA systematic review and meta-analysis of Triple P.

    abstract:BACKGROUND:Interventions to promote positive parenting are often reported to offer good outcomes for children but they can consume substantial resources and they require rigorous appraisal. METHODS:Evaluations of the Triple P parenting program were subjected to systematic review and meta-analysis with analysis of bias...

    journal_title:BMC medicine

    pub_type: 杂志文章,meta分析,评审

    doi:10.1186/1741-7015-10-130

    authors: Wilson P,Rush R,Hussey S,Puckering C,Sim F,Allely CS,Doku P,McConnachie A,Gillberg C

    更新日期:2012-11-02 00:00:00

  • Macrophage invasion contributes to degeneration of stria vascularis in Pendred syndrome mouse model.

    abstract:BACKGROUND:Pendred syndrome, an autosomal-recessive disorder characterized by deafness and goiter, is caused by a mutation of SLC26A4, which codes for the anion exchanger pendrin. We investigated the relationship between pendrin expression and deafness using mice that have (Slc26a4+/+ or Slc26a4+/-) or lack (Slc26a4-/-...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/1741-7015-4-37

    authors: Jabba SV,Oelke A,Singh R,Maganti RJ,Fleming S,Wall SM,Everett LA,Green ED,Wangemann P

    更新日期:2006-12-22 00:00:00

  • The Lives Saved Tool (LiST) as a model for diarrhea mortality reduction.

    abstract:BACKGROUND:Diarrhea is a leading cause of morbidity and mortality among children under five years of age. The Lives Saved Tool (LiST) is a model used to calculate deaths averted or lives saved by past interventions and for the purposes of program planning when costly and time consuming impact studies are not possible. ...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/1741-7015-12-70

    authors: Fischer Walker CL,Walker N

    更新日期:2014-04-29 00:00:00

  • Food for thought: why does the medical community struggle with research about nutritional therapy in the acute care setting?

    abstract::Although clinical nutrition is a frequently used intervention in inpatient care, high quality trials proving its effectiveness and safety when used in the acutely-ill polymorbid medical inpatient population are largely lacking. From an evolutionary perspective, illness-related low appetite is protective and part of th...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-017-0812-x

    authors: Schuetz P

    更新日期:2017-02-24 00:00:00

  • Application of real-time global media monitoring and 'derived questions' for enhancing communication by regulatory bodies: the case of human papillomavirus vaccines.

    abstract:BACKGROUND:The benefit-risk balance of vaccines is regularly debated by the public, but the utility of media monitoring for regulatory bodies is unclear. A media monitoring study was conducted at the European Medicines Agency (EMA) concerning human papillomavirus (HPV) vaccines during a European Union (EU) referral pro...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-017-0850-4

    authors: Bahri P,Fogd J,Morales D,Kurz X,ADVANCE consortium.

    更新日期:2017-05-02 00:00:00

  • Advances in treating HER2-positive breast cancer: an interview with Sunil Verma.

    abstract::In this podcast, we talk to Dr Sunil Verma about the evolution of HER2 as a therapeutic target in breast cancer, and about how targeted therapy has revolutionized breast cancer treatment. We also discuss new agents in clinical development and the ways in which advances in treating HER2-positive breast cancer can be us...

    journal_title:BMC medicine

    pub_type: 面试

    doi:10.1186/s12916-014-0129-y

    authors: Verma S

    更新日期:2014-08-12 00:00:00

  • Improving performance of the Tariff Method for assigning causes of death to verbal autopsies.

    abstract:BACKGROUND:Reliable data on the distribution of causes of death (COD) in a population are fundamental to good public health practice. In the absence of comprehensive medical certification of deaths, the only feasible way to collect essential mortality data is verbal autopsy (VA). The Tariff Method was developed by the ...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-015-0527-9

    authors: Serina P,Riley I,Stewart A,James SL,Flaxman AD,Lozano R,Hernandez B,Mooney MD,Luning R,Black R,Ahuja R,Alam N,Alam SS,Ali SM,Atkinson C,Baqui AH,Chowdhury HR,Dandona L,Dandona R,Dantzer E,Darmstadt GL,Das V,Dh

    更新日期:2015-12-08 00:00:00

  • Risk of violence from the man involved in the pregnancy after receiving or being denied an abortion.

    abstract:BACKGROUND:Intimate partner violence is common among women having abortions, with between 6% and 22% reporting recent violence from an intimate partner. Concern about violence is a reason some pregnant women decide to terminate their pregnancies. Whether risk of violence decreases after having an abortion, remains unkn...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-014-0144-z

    authors: Roberts SC,Biggs MA,Chibber KS,Gould H,Rocca CH,Foster DG

    更新日期:2014-09-29 00:00:00

  • Translating evidence to patient care through caregivers: a systematic review of caregiver-mediated interventions.

    abstract:BACKGROUND:Caregivers may promote the uptake of science into patient care and the practice of evidence-informed medicine. The purpose of this study was to determine whether caregiver-mediated (non-clinical caregiver-delivered) interventions are effective in improving patient, caregiver, provider, or health system outco...

    journal_title:BMC medicine

    pub_type: 杂志文章,评审

    doi:10.1186/s12916-018-1097-4

    authors: Fiest KM,McIntosh CJ,Demiantschuk D,Leigh JP,Stelfox HT

    更新日期:2018-07-12 00:00:00

  • The relationship between trust in mass media and the healthcare system and individual health: evidence from the AsiaBarometer Survey.

    abstract:BACKGROUND:Vertical and horizontal trust, as dimensions of social capital, may be important determinants of health. As mass media campaigns have been used extensively to promote healthy lifestyles and convey health-related information, high levels of individual trust in the media may facilitate the success of such camp...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/1741-7015-7-4

    authors: Tokuda Y,Fujii S,Jimba M,Inoguchi T

    更新日期:2009-01-22 00:00:00

  • Chemical and environmental vector control as a contribution to the elimination of visceral leishmaniasis on the Indian subcontinent: cluster randomized controlled trials in Bangladesh, India and Nepal.

    abstract:BACKGROUND:Bangladesh, India and Nepal are working towards the elimination of visceral leishmaniasis (VL) by 2015. In 2005 the World Health Organization/Training in Tropical Diseases launched an implementation research programme to support integrated vector management for the elimination of VL from Bangladesh, India an...

    journal_title:BMC medicine

    pub_type: 杂志文章,随机对照试验

    doi:10.1186/1741-7015-7-54

    authors: Joshi AB,Das ML,Akhter S,Chowdhury R,Mondal D,Kumar V,Das P,Kroeger A,Boelaert M,Petzold M

    更新日期:2009-10-05 00:00:00

  • The inevitable colonisation of Singapore by Zika virus.

    abstract::Singapore is endemic for Dengue virus, with approximately 10,000 to 20,000 annual cases reported in recent years. In 2012, Chikungunya was introduced, although the numbers of cases reported is much fewer. The current Zika virus pandemic originating in Brazil represents a threat to all regions with Aedes mosquitoes, pa...

    journal_title:BMC medicine

    pub_type: 社论

    doi:10.1186/s12916-016-0737-9

    authors: Fisher D,Cutter J

    更新日期:2016-11-21 00:00:00

  • Attention bias modification: the Emperor's new suit?

    abstract::A series of primarily laboratory-based studies found attention bias modification in socially anxious participants to lead to reduced anxiety. It is argued that the failure to replicate the positive results of attention bias modification in the study of Carlbring et al. may be due to reasons other than the application ...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/1741-7015-10-63

    authors: Emmelkamp PM

    更新日期:2012-06-25 00:00:00

  • MUC4 gene polymorphisms associate with endometriosis development and endometriosis-related infertility.

    abstract:BACKGROUND:Mucin 4 (MUC4) plays an important role in protecting and lubricating the epithelial surface of reproductive tracts, but its role in the pathogenesis of endometriosis is largely unknown. METHODS:To correlate MUC4 polymorphism with the risk of endometriosis and endometriosis-related infertility, we performed ...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/1741-7015-9-19

    authors: Chang CY,Chang HW,Chen CM,Lin CY,Chen CP,Lai CH,Lin WY,Liu HP,Sheu JJ,Tsai FJ

    更新日期:2011-02-24 00:00:00

  • Prescription patterns and appropriateness of NSAID therapy according to gastrointestinal risk and cardiovascular history in patients with diagnoses of osteoarthritis.

    abstract:BACKGROUND:Prescription of non-steroidal anti-inflammatory drugs (NSAIDs) should be based on the assessment of both gastrointestinal (GI) and cardiovascular (CV) risk for the individual patient. We aimed to assess the GI/CV risk profile and the pharmacological management of patients with osteoarthritis (OA) in clinical...

    journal_title:BMC medicine

    pub_type: 杂志文章,多中心研究

    doi:10.1186/1741-7015-9-38

    authors: Lanas A,Garcia-Tell G,Armada B,Oteo-Alvaro A

    更新日期:2011-04-14 00:00:00

  • Large-scale external validation and comparison of prognostic models: an application to chronic obstructive pulmonary disease.

    abstract:BACKGROUND:External validations and comparisons of prognostic models or scores are a prerequisite for their use in routine clinical care but are lacking in most medical fields including chronic obstructive pulmonary disease (COPD). Our aim was to externally validate and concurrently compare prognostic scores for 3-year...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/s12916-018-1013-y

    authors: Guerra B,Haile SR,Lamprecht B,Ramírez AS,Martinez-Camblor P,Kaiser B,Alfageme I,Almagro P,Casanova C,Esteban-González C,Soler-Cataluña JJ,de-Torres JP,Miravitlles M,Celli BR,Marin JM,Ter Riet G,Sobradillo P,Lange P,Ga

    更新日期:2018-03-02 00:00:00

  • Estimation of outbreak severity and transmissibility: Influenza A(H1N1)pdm09 in households.

    abstract:BACKGROUND:When an outbreak of a novel pathogen occurs, some of the most pressing questions from a public-health point of view relate to its transmissibility, and the probabilities of different clinical outcomes following infection, to allow an informed response. Estimates of these quantities are often based on househo...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/1741-7015-10-117

    authors: House T,Inglis N,Ross JV,Wilson F,Suleman S,Edeghere O,Smith G,Olowokure B,Keeling MJ

    更新日期:2012-10-09 00:00:00

  • Spectrum of gluten-related disorders: consensus on new nomenclature and classification.

    abstract::A decade ago celiac disease was considered extremely rare outside Europe and, therefore, was almost completely ignored by health care professionals. In only 10 years, key milestones have moved celiac disease from obscurity into the popular spotlight worldwide. Now we are observing another interesting phenomenon that i...

    journal_title:BMC medicine

    pub_type: 杂志文章,评审

    doi:10.1186/1741-7015-10-13

    authors: Sapone A,Bai JC,Ciacci C,Dolinsek J,Green PH,Hadjivassiliou M,Kaukinen K,Rostami K,Sanders DS,Schumann M,Ullrich R,Villalta D,Volta U,Catassi C,Fasano A

    更新日期:2012-02-07 00:00:00

  • Diagnostic accuracy of quantitative PCR (Xpert MTB/RIF) for tuberculous pericarditis compared to adenosine deaminase and unstimulated interferon-γ in a high burden setting: a prospective study.

    abstract:BACKGROUND:Tuberculous pericarditis (TBP) is associated with high morbidity and mortality, and is an important treatable cause of heart failure in developing countries. Tuberculous aetiology of pericarditis is difficult to diagnose promptly. The utility of the new quantitative PCR test (Xpert MTB/RIF) for the diagnosis...

    journal_title:BMC medicine

    pub_type: 杂志文章

    doi:10.1186/1741-7015-12-101

    authors: Pandie S,Peter JG,Kerbelker ZS,Meldau R,Theron G,Govender U,Ntsekhe M,Dheda K,Mayosi BM

    更新日期:2014-06-18 00:00:00

  • Polycystic ovary syndrome: a complex condition with psychological, reproductive and metabolic manifestations that impacts on health across the lifespan.

    abstract::Polycystic ovary syndrome (PCOS) is of clinical and public health importance as it is very common, affecting up to one in five women of reproductive age. It has significant and diverse clinical implications including reproductive (infertility, hyperandrogenism, hirsutism), metabolic (insulin resistance, impaired gluco...

    journal_title:BMC medicine

    pub_type: 杂志文章,评审

    doi:10.1186/1741-7015-8-41

    authors: Teede H,Deeks A,Moran L

    更新日期:2010-06-30 00:00:00