Guillermo García-Rayado

Dr. Guillermo García-Rayado


Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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31 October 2022 in Nutrients
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Journal Article
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POPablo Cañamares Orbís
Pablo Cañamares Orbís
GGGuillermo García-Rayado
Guillermo García-Rayado
EAEnrique Alfaro
Enrique Alfaro
This review summarizes the main pancreatic diseases from a nutritional approach. Nutrition is a cornerstone of pancreatic disease and is sometimes undervalued. An early identification of malnutrition is the first step in maintaining an adequate nutritional status in acute pancreatitis, chronic pancreatitis and pancreatic cancer. Following a proper diet is a pillar in the treatment of pancreatic diseases and, often, nutritional counseling becomes essential. In addition, some patients will require oral nutritional supplements and fat-soluble vitamins to combat certain deficiencies. Other patients will require enteral nutrition by nasoenteric tube or total parenteral nutrition in order to maintain the requirements, depending on the pathology and its consequences. Pancreatic exocrine insufficiency, defined as a significant decrease in pancreatic enzymes or bicarbonate until the digestive function is impaired, is common in pancreatic diseases and is the main cause of malnutrition. Pancreatic enzymes therapy allows for the management of these patients. Nutrition can improve the nutritional status and quality of life of these patients and may even improve life expectancy in patients with pancreatic cancer. For this reason, nutrition must maintain the importance it deserves.

13 May 2021 in Nutrients
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Journal Article
Open access
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POPablo Cañamares Orbís
Pablo Cañamares Orbís
VBVanesa Bernal
Vanesa Bernal
OSOlivia Sierra-Gabarda
Olivia Sierra-Gabarda
DDDiego Casas Deza
Diego Casas Deza
GGGuillermo García-Rayado
Guillermo García-Rayado
Alberto LuéAlberto Lué
Alberto Lué
Liver and pancreatic diseases have significant consequences on nutritional status, with direct effects on clinical outcomes, survival, and quality of life. Maintaining and preserving an adequate nutritional status is crucial and should be one of the goals of patients with liver or pancreatic disease. Thus, the nutritional status of such patients should be systematically assessed at follow-up. Recently, great progress has been made in this direction, and the relevant pathophysiological mechanisms have been better established. While the spectrum of these diseases is wide, and the mechanisms of the onset of malnutrition are numerous and interrelated, clinical and nutritional manifestations are common. The main consequences include an impaired dietary intake, altered macro and micronutrient metabolism, energy metabolism disturbances, an increase in energy expenditure, nutrient malabsorption, sarcopenia, and osteopathy. In this review, we summarize the factors contributing to malnutrition, and the effects on nutritional status and clinical outcomes of liver and pancreatic diseases. We explain the current knowledge on how to assess malnutrition and the efficacy of nutritional interventions in these settings.

31 December 2020 in Journal of Personalized Medicine
Verified
Journal Article
Open access
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SHSonia Hermoso-Durán
Sonia Hermoso-Durán
GGGuillermo García-Rayado
Guillermo García-Rayado
LCLaura Ceballos
Laura Ceballos
CHCarlos Sostres Homedes
Carlos Sostres Homedes
SVSonia Vega
Sonia Vega
Olga AbianOlga Abian
Olga Abian
Background: Current efforts in the identification of new biomarkers are directed towards an accurate differentiation between benign and premalignant cysts. Thermal Liquid Biopsy (TLB) has been previously applied to inflammatory and tumor diseases and could offer an interesting point of view in this type of pathology. Methods: In this work, twenty patients (12 males and 8 females, average ages 62) diagnosed with a pancreatic cyst benign (10) and premalignant (10) cyst lesions were recruited, and biological samples were obtained during the endoscopic ultrasonography procedure. Results: Proteomic content of cyst liquid samples was studied and several common proteins in the different groups were identified. TLB cyst liquid profiles reflected protein content. Also, TLB serum score was able to discriminate between healthy and cysts patients (71% sensitivity and 98% specificity) and between benign and premalignant cysts (75% sensitivity and 67% specificity). Conclusions: TLB analysis of plasmatic serum sample, a quick, simple and non-invasive technique that can be easily implemented, reports valuable information on the observed pancreatic lesion. These preliminary results set the basis for a larger study to refine TLB serum score and move closer to the clinical application of TLB providing useful information to the gastroenterologist during patient diagnosis.

30 November 2024 in Cancers
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Journal Article
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JMJudith Millastre
Judith Millastre
SHSonia Hermoso-Durán
Sonia Hermoso-Durán
MSMaría Ortiz de Solórzano
María Ortiz de Solórzano
NFNicolas Fraunhoffer
Nicolas Fraunhoffer
GGGuillermo García-Rayado
Guillermo García-Rayado
Olga AbianOlga Abian
Olga Abian
Pancreatic cystic lesions (PCLs) are a heterogeneous group of lesions with increasing incidence, usually identified incidentally on imaging studies (multidetector computed tomography (MDCT), magnetic resonance imaging (MRI), or endoscopic ultrasound (EUS))

8 September 2022 in Frontiers in Medicine
Verified
Journal Article
Open access
ALAngel Lanas
Angel Lanas
GGGuillermo García-Rayado
Guillermo García-Rayado
Editorial: Insights in gastroenterology: 2021