Luis Fernández-Salazar

Dr. Luis Fernández-Salazar

orcid

Research Focus & Metrics

Academic Career Length

29Years (1998-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2016 in American Journal of Gastroenterology
Verified
Journal Article
Open access
ICIsabel Comino
Isabel Comino
FFFernando Fernández-Bañares
Fernando Fernández-Bañares
MEMaria Esteve
Maria Esteve
LOLuís Ortigosa
Luís Ortigosa
GCGemma Castillejo
Gemma Castillejo
CSCarolina Sousa
Carolina Sousa
Objectives: Methods: Results: Conclusions:

1 August 2004 in Diabetes Care
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Journal Article
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JMJesús Medina
Jesús Medina
LFLuis Fernández-Salazar
Luis Fernández-Salazar
LGLuisa García-Buey
Luisa García-Buey
RMRicardo Moreno-Otero
Ricardo Moreno-Otero
Nonalcoholic steatohepatitis (NASH) represents an advanced stage of fatty liver disease developed in the absence of alcohol abuse. Its increasing prevalence in western countries, the diagnostic difficulties by noninvasive tests, and the possibility of progression to advanced fibrosis and even cirrhosis make NASH a challenge for hepatologists. NASH is frequently associated with type 2 diabetes and the metabolic syndrome, and several genetic and acquired factors are involved in its pathogenesis. Insulin resistance plays a central role in the development of a steatotic liver, which becomes vulnerable to additional injuries. Several cyclic mechanisms leading to self-enhancement of insulin resistance and hepatic accumulation of fat have been recently identified. Excess intracellular fatty acids, oxidant stress, tumor necrosis factor-α, and mitochondrial dysfunction are causes of hepatocellular injury, thereby leading to disease progression and to the establishment of NASH. Intestinal bacterial overgrowth also plays a role, by increasing production of endogenous ethanol and proinflammatory cytokines. Therapeutic strategies aimed at modulating insulin resistance, normalizing lipoprotein metabolism, and downregulating inflammatory mediators with probiotics have promising potential.

1 March 2018 in American Journal of Gastroenterology
Verified
Journal Article
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MCM Chaparro
M Chaparro
AVA Verreth
A Verreth
TLTriana Lobaton
Triana Lobaton
EGE Gravito-Soares
E Gravito-Soares
MJM Julsgaard
M Julsgaard
JGJ P Gisbert
J P Gisbert
The long-term safety of exposure to anti-tumor necrosis factor (anti-TNFα) drugs during pregnancy has received little attention. We aimed to compare the relative risk of severe infections in children of mothers with inflammatory bowel disease (IBD) who were exposed to anti-TNFα drugs in utero with that of children who were not exposed to the drugs. Retrospective multicenter cohort study. Exposed cohort: children from mothers with IBD receiving anti-TNFα medication (with or without thiopurines) at any time during pregnancy or during the 3 months before conception. Non-exposed cohort: children from mothers with IBD not treated with anti-TNFα agents or thiopurines at any time during pregnancy or the 3 months before conception. The cumulative incidence of severe infections after birth was estimated using Kaplan–Meier curves, which were compared using the log-rank test. Cox-regression analysis was performed to identify potential predictive factors for severe infections in the offspring. The study population comprised 841 children, of whom 388 (46%) had been exposed to anti-TNFα agents. Median follow-up after delivery was 47 months in the exposed group and 68 months in the non-exposed group. Both univariate and multivariate analysis showed the incidence rate of severe infections to be similar in non-exposed and exposed children (1.6% vs. 2.8% per person-year, hazard ratio 1.2 (95% confidence interval 0.8–1.8)). In the multivariate analysis, preterm delivery was the only variable associated with a higher risk of severe infection (2.5% (1.5–4.3)). In utero exposure to anti-TNFα drugs does not seem to be associated with increased short-term or long-term risk of severe infections in children.

Verified
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MCMaría Chaparro
María Chaparro
AGAna Garre
Ana Garre
AOAndrea Núñez Ortiz
Andrea Núñez Ortiz
MPMaría Teresa Diz-Lois Palomares
María Teresa Diz-Lois Palomares
CRCristina Rodríguez
Cristina Rodríguez
OGon behalf of the EpidemIBD study group of GETECCU
on behalf of the EpidemIBD study group of GETECCU
(1) Aims: To assess the incidence of inflammatory bowel disease (IBD) in Spain, to describe the main epidemiological and clinical characteristics at diagnosis and the evolution of the disease, and to explore the use of drug treatments. (2) Methods: Prospective, population-based nationwide registry. Adult patients diagnosed with IBD—Crohn’s disease (CD), ulcerative colitis (UC) or IBD unclassified (IBD-U)—during 2017 in Spain were included and were followed-up for 1 year. (3) Results: We identified 3611 incident cases of IBD diagnosed during 2017 in 108 hospitals covering over 22 million inhabitants. The overall incidence (cases/100,000 person-years) was 16 for IBD, 7.5 for CD, 8 for UC, and 0.5 for IBD-U; 53% of patients were male and median age was 43 years (interquartile range = 31–56 years). During a median 12-month follow-up, 34% of patients were treated with systemic steroids, 25% with immunomodulators, 15% with biologics and 5.6% underwent surgery. The percentage of patients under these treatments was significantly higher in CD than UC and IBD-U. Use of systemic steroids and biologics was significantly higher in hospitals with high resources. In total, 28% of patients were hospitalized (35% CD and 22% UC patients, p < 0.01). (4) Conclusion: The incidence of IBD in Spain is rather high and similar to that reported in Northern Europe. IBD patients require substantial therapeutic resources, which are greater in CD and in hospitals with high resources, and much higher than previously reported. One third of patients are hospitalized in the first year after diagnosis and a relevant proportion undergo surgery.

1 January 2017 in American Journal of Gastroenterology
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MCM J Casanova
M J Casanova
MCMaría Chaparro
María Chaparro
VGV García-Sánchez
V García-Sánchez
ONO Nantes
O Nantes
ELE Leo
E Leo
JGJ P Gisbert
J P Gisbert
The aims of this study were to assess the risk of relapse after discontinuation of anti-tumor necrosis factor (anti-TNF) drugs in patients with inflammatory bowel disease (IBD), to identify the factors associated with relapse, and to evaluate the overcome after retreatment with the same anti-TNF in those who relapsed. This was a retrospective, observational, multicenter study. IBD patients who had been treated with anti-TNFs and in whom these drugs were discontinued after clinical remission was achieved were included. A total of 1,055 patients were included. The incidence rate of relapse was 19% and 17% per patient-year in Crohn’s disease and ulcerative colitis patients, respectively. In both Crohn’s disease and ulcerative colitis patients in deep remission, the incidence rate of relapse was 19% per patient-year. The treatment with adalimumab vs. infliximab (hazard ratio (HR)=1.29; 95% confidence interval (CI)=1.01–1.66), elective discontinuation of anti-TNFs (HR=1.90; 95% CI=1.07–3.37) or discontinuation because of adverse events (HR=2.33; 95% CI=1.27–2.02) vs. a top-down strategy, colonic localization (HR=1.51; 95% CI=1.13–2.02) vs. ileal, and stricturing behavior (HR=1.5; 95% CI=1.09–2.05) vs. inflammatory were associated with a higher risk of relapse in Crohn’s disease patients, whereas treatment with immunomodulators after discontinuation (HR=0.67; 95% CI=0.51–0.87) and age (HR=0.98; 95% CI=0.97–0.99) were protective factors. None of the factors were predictive in ulcerative colitis patients. Retreatment of relapse with the same anti-TNF was effective (80% responded) and safe. The incidence rate of inflammatory bowel disease relapse after anti-TNF discontinuation is relevant. Some predictive factors of relapse after anti-TNF withdrawal have been identified. Retreatment with the same anti-TNF drug was effective and safe.

23 February 2015 in Alimentary Pharmacology & Therapeutics
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Journal Article
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JGJavier P Gisbert
Javier P Gisbert
MRM. Romano
M. Romano
AGAntonietta Gerarda Gravina
Antonietta Gerarda Gravina
PSP. Solís‐Muñoz
P. Solís‐Muñoz
FBF. Bermejo
F. Bermejo
AMAdrian Gerald McNicholl
Adrian Gerald McNicholl
Summary: Background: The most commonly used second‐line Helicobacter pylori eradication regimens are bismuth‐containing quadruple therapy and levofloxacin‐containing triple therapy, both offering suboptimal results. Combining bismuth and levofloxacin may enhance the efficacy of rescue eradication regimens.Aims: To evaluate the efficacy and tolerability of a second‐line quadruple regimen containing levofloxacin and bismuth in patients whose previous H. pylori eradication treatment failed.Methods: This was a prospective multicenter study including patients in whom a standard triple therapy (PPI–clarithromycin–amoxicillin) or a non‐bismuth quadruple therapy (PPI–clarithromycin–amoxicillin–metronidazole, either sequential or concomitant) had failed. Esomeprazole (40 mg b.d.), amoxicillin (1 g b.d.), levofloxacin (500 mg o.d.) and bismuth (240 mg b.d.) was prescribed for 14 days. Eradication was confirmed by 13C‐urea breath test. Compliance was determined through questioning and recovery of empty medication envelopes. Incidence of adverse effects was evaluated by questionnaires.Results: 200 patients were included consecutively (mean age 47 years, 67% women, 13% ulcer). Previous failed therapy included: standard clarithromycin triple therapy (131 patients), sequential (32) and concomitant (37). A total of 96% took all medications correctly. Per‐protocol and intention‐to‐treat eradication rates were 91.1% (95%CI = 87–95%) and 90% (95%CI = 86–94%). Cure rates were similar regardless of previous (failed) treatment or country of origin. Adverse effects were reported in 46% of patients, most commonly nausea (17%) and diarrhoea (16%); 3% were intense but none was serious.Conclusions: Fourteen‐day bismuth‐ and levofloxacin‐containing quadruple therapy is an effective (≥90% cure rate), simple and safe second‐line strategy in patients whose previous standard triple or non‐bismuth quadruple (sequential or concomitant) therapies have failed.