Laura Valenzuela-Vallejo
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Laura Valenzuela-Vallejo has a total of 241 co-authors. Here are the top co-authors by number of shared publications:
- Christos Socrates Mantzoros
Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
6 shared publications Ornella Verrastro
Univ Cattolica Sacro Cuore, Rome, Italy
3 shared publications- David Corredor-Orlandelli
School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
2 shared publications Evangelos Axarloglou
Harvard Med Sch, Dept Med, Beth Israel Deaconess Med Ctr, Boston, MA USA
2 shared publicationsGeltrude Mingrone
Univ Cattolica Sacro Cuore, Rome, Italy
2 shared publications- George V. Papatheodoridis
1(st) Department of Gastroenterology, Medical School of National and Kapodistrian University of Athens, General Hospital of Athens "Laiko", Athens, Greece
2 shared publications
Latest Publications
- 8 October 2024
- Published by Elsevier in Clinical Nutrition
- Vol. 43 (12) , 101-108
Apolipoprotein C-III in association with metabolic-dysfunction associated steatotic liver disease: A large, multicenter study
- 8 October 2024
- Published by Elsevier in Clinical Nutrition
- Vol. 43 (12) , 101-108
Apolipoprotein C-III in association with metabolic-dysfunction associated steatotic liver disease: A large, multicenter study
- Open Access
- 23 January 2024
- Published by Wiley in Liver International
- Vol. 44 (3) , 848-864
Thyroid function, adipokines and mitokines in metabolic dysfunction‐associated steatohepatitis: A multi‐centre biopsy‐based observational study
Background and Aims: Thyroid axis is currently under investigation as a therapeutic target in metabolic dysfunction‐associated steatotic liver disease (MASLD). Thyroid function was examined herein in the full spectrum of disease. Methods: Subjects were recruited and had liver biopsies in two Gastroenterology‐Hepatology Clinics (Greece and Australia) and one Bariatric‐Metabolic Surgery Clinic (Italy). The main working sample was n = 677 subjects with MASLD after excluding subjects with abnormal free thyroxine levels. Participants were classified according to thyroid‐stimulating hormone (TSH) standard criteria: Subclinical hyperthyroidism (F ≥ 2), metabolic dysfunction‐associated steatohepatitis (MASH) and at‐risk MASH. Subclinical hypothyroidism was associated with fibrosis F ≥ 2 (odds ratio [OR] = 3.47, 95% confident interval [CI] [1.50, 8.05], p = .02), MASH (OR = 3.44, 95% CI [1.48, 7.98] p = .001) and at‐risk MASH (OR = 3.88, 95% CI [1.76, 8.55], p = .001), before and after controlling for adiposity, central obesity, and insulin resistance. When leptin, adiponectin, or growth differentiation factor‐15 were examined as moderators, significance was lost. Sex‐specific analysis revealed a strong association between TSH and the presence of significant fibrosis among women, eliminated only when adipokines/mitokines were adjusted for. Restricted cubic spline analysis revealed associations between TSH and liver outcomes ( p ‐values < .01) with inflection points for fibrosis F ≥ 2 being 2.49, for MASH being 2.67 and for at‐risk MASH being 6.96. Conclusions: These observations provide support for studies on the administration of thyroid hormone in MASLD therapeutics for subclinical hypothyroidism and liver‐specific thyroid receptor agonists for subjects across the TSH continuum.
- 23 January 2024
- Published by Wiley in Liver International
- Vol. 44 (3) , 848-864
Open AccessThyroid function, adipokines and mitokines in metabolic dysfunction‐associated steatohepatitis: A multi‐centre biopsy‐based observational study
Background and Aims: Thyroid axis is currently under investigation as a therapeutic target in metabolic dysfunction‐associated steatotic liver disease (MASLD). Thyroid function was examined herein in the full spectrum of disease. Methods: Subjects were recruited and had liver biopsies in two Gastroenterology‐Hepatology Clinics (Greece and Australia) and one Bariatric‐Metabolic Surgery Clinic (Italy). The main working sample was n = 677 subjects with MASLD after excluding subjects with abnormal free thyroxine levels. Participants were classified according to thyroid‐stimulating hormone (TSH) standard criteria: Subclinical hyperthyroidism (F ≥ 2), metabolic dysfunction‐associated steatohepatitis (MASH) and at‐risk MASH. Subclinical hypothyroidism was associated with fibrosis F ≥ 2 (odds ratio [OR] = 3.47, 95% confident interval [CI] [1.50, 8.05], p = .02), MASH (OR = 3.44, 95% CI [1.48, 7.98] p = .001) and at‐risk MASH (OR = 3.88, 95% CI [1.76, 8.55], p = .001), before and after controlling for adiposity, central obesity, and insulin resistance. When leptin, adiponectin, or growth differentiation factor‐15 were examined as moderators, significance was lost. Sex‐specific analysis revealed a strong association between TSH and the presence of significant fibrosis among women, eliminated only when adipokines/mitokines were adjusted for. Restricted cubic spline analysis revealed associations between TSH and liver outcomes ( p ‐values < .01) with inflection points for fibrosis F ≥ 2 being 2.49, for MASH being 2.67 and for at‐risk MASH being 6.96. Conclusions: These observations provide support for studies on the administration of thyroid hormone in MASLD therapeutics for subclinical hypothyroidism and liver‐specific thyroid receptor agonists for subjects across the TSH continuum.
- 18 August 2023
- Published by Elsevier
- p. 447-451
Combination products
- 18 August 2023
- Published by Elsevier
List of contributors
- 9 August 2023
- Published by Elsevier in Diabetes Research and Clinical Practice
- Vol. 203, 110870
The first external validation of the Dallas steatosis index in biopsy-proven Non-alcoholic fatty liver Disease: A multicenter study
- 9 August 2023
- Published by Elsevier in Diabetes Research and Clinical Practice
- Vol. 203, 110870
The first external validation of the Dallas steatosis index in biopsy-proven Non-alcoholic fatty liver Disease: A multicenter study
- Open Access
- 6 July 2023
- Published by SAGE Publications in Sage Open Medical Case Reports
- Vol. 11
Ectopic parathyroid adenoma causing hyperparathyroidism-induced psychosis: A case report
Primary hyperparathyroidism is a disease with multisystemic and heterogeneous manifestations, characterized by underlying high parathormone concentrations. Despite neuropsychiatric involvement being one of the manifestations, psychosis is rare. This is the case of a 68-year-old female with a 10-day clinical course of anorexia, mutism, dysphagia, constipation, and weight loss. The patient had disorganized speech associated with paranoid delusions. Prior to this visit, the patient was recently diagnosed with a mixed anxiety-depressive disorder. For this reason, treatment with antidepressants in combination with atypical antipsychotics was administered without a satisfactory response. Neuroimaging, infectious panel, and toxicology screening showed no abnormal findings. Hypercalcemia secondary to a retropharyngeal ectopic parathyroid adenoma was the causative etiology of her primary hyperparathyroidism, and hypercalcemia treatment resolved the psychotic episode. We highlight the importance of recognizing psychosis as a possible initial presentation of hyperparathyroidism and hypercalcemia. Ruling out organic etiologies prior to diagnosing a primary cause of psychosis is crucial, as their treatment can reverse the psychotic symptoms.
- 6 July 2023
- Published by SAGE Publications in Sage Open Medical Case Reports
- Vol. 11
Open AccessEctopic parathyroid adenoma causing hyperparathyroidism-induced psychosis: A case report
Primary hyperparathyroidism is a disease with multisystemic and heterogeneous manifestations, characterized by underlying high parathormone concentrations. Despite neuropsychiatric involvement being one of the manifestations, psychosis is rare. This is the case of a 68-year-old female with a 10-day clinical course of anorexia, mutism, dysphagia, constipation, and weight loss. The patient had disorganized speech associated with paranoid delusions. Prior to this visit, the patient was recently diagnosed with a mixed anxiety-depressive disorder. For this reason, treatment with antidepressants in combination with atypical antipsychotics was administered without a satisfactory response. Neuroimaging, infectious panel, and toxicology screening showed no abnormal findings. Hypercalcemia secondary to a retropharyngeal ectopic parathyroid adenoma was the causative etiology of her primary hyperparathyroidism, and hypercalcemia treatment resolved the psychotic episode. We highlight the importance of recognizing psychosis as a possible initial presentation of hyperparathyroidism and hypercalcemia. Ruling out organic etiologies prior to diagnosing a primary cause of psychosis is crucial, as their treatment can reverse the psychotic symptoms.
- Open Access
- 14 May 2023
- Published by MDPI AG in Journal of Personalized Medicine
- Vol. 13 (5) , 830
Precision Medicine in Fatty Liver Disease/Non-Alcoholic Fatty Liver Disease
Non-alcoholic fatty liver disease (NAFLD) is the most prevalent chronic liver disease, and is related to fatal and non-fatal liver, metabolic, and cardiovascular complications. Its non-invasive diagnosis and effective treatment remain an unmet clinical need. NAFLD is a heterogeneous disease that is most commonly present in the context of metabolic syndrome and obesity, but not uncommonly, may also be present without metabolic abnormalities and in subjects with normal body mass index. Therefore, a more specific pathophysiology-based subcategorization of fatty liver disease (FLD) is needed to better understand, diagnose, and treat patients with FLD. A precision medicine approach for FLD is expected to improve patient care, decrease long-term disease outcomes, and develop better-targeted, more effective treatments. We present herein a precision medicine approach for FLD based on our recently proposed subcategorization, which includes the metabolic-associated FLD (MAFLD) (i.e., obesity-associated FLD (OAFLD), sarcopenia-associated FLD (SAFLD, and lipodystrophy-associated FLD (LAFLD)), genetics-associated FLD (GAFLD), FLD of multiple/unknown causes (XAFLD), and combined causes of FLD (CAFLD) as well as advanced stage fibrotic FLD (FAFLD) and end-stage FLD (ESFLD) subcategories. These and other related advances, as a whole, are expected to enable not only improved patient care, quality of life, and long-term disease outcomes, but also a considerable reduction in healthcare system costs associated with FLD, along with more options for better-targeted, more effective treatments in the near future.
- 14 May 2023
- Published by MDPI AG in Journal of Personalized Medicine
- Vol. 13 (5) , 830
Open AccessPrecision Medicine in Fatty Liver Disease/Non-Alcoholic Fatty Liver Disease
Non-alcoholic fatty liver disease (NAFLD) is the most prevalent chronic liver disease, and is related to fatal and non-fatal liver, metabolic, and cardiovascular complications. Its non-invasive diagnosis and effective treatment remain an unmet clinical need. NAFLD is a heterogeneous disease that is most commonly present in the context of metabolic syndrome and obesity, but not uncommonly, may also be present without metabolic abnormalities and in subjects with normal body mass index. Therefore, a more specific pathophysiology-based subcategorization of fatty liver disease (FLD) is needed to better understand, diagnose, and treat patients with FLD. A precision medicine approach for FLD is expected to improve patient care, decrease long-term disease outcomes, and develop better-targeted, more effective treatments. We present herein a precision medicine approach for FLD based on our recently proposed subcategorization, which includes the metabolic-associated FLD (MAFLD) (i.e., obesity-associated FLD (OAFLD), sarcopenia-associated FLD (SAFLD, and lipodystrophy-associated FLD (LAFLD)), genetics-associated FLD (GAFLD), FLD of multiple/unknown causes (XAFLD), and combined causes of FLD (CAFLD) as well as advanced stage fibrotic FLD (FAFLD) and end-stage FLD (ESFLD) subcategories. These and other related advances, as a whole, are expected to enable not only improved patient care, quality of life, and long-term disease outcomes, but also a considerable reduction in healthcare system costs associated with FLD, along with more options for better-targeted, more effective treatments in the near future.
- Open Access
- 1 January 2023
- Published by SAGE Publications in Sage Open Medical Case Reports
- Vol. 11
Congenital hyperreninemic hypoaldosteronism: A case report
Congenital hypoaldosteronism is a rare autosomal recessive or dominant endocrinopathy with variable penetrance, secondary to primary defects in aldosterone synthesis that could lead to hypovolemia, hyponatremia, hyperkalemia, failure to thrive, microcephaly, seizures, neurodevelopmental delay, or hearing loss. We present the case of a Colombian patient with congenital hypoaldosteronism, who owns two variants in the CPY11B2 gene, and a heterozygous pathogenic variant for nonclassical congenital adrenal hyperplasia. However, the patient missed follow-up and treatment for 6 years. At the age of 7 years, he resumed medical follow-up with laboratory findings of hyperreninemia and hypoaldosteronism, as well as clinical findings of strabismus, left mixed hyperacusis, and pathological short stature (−4.3 SD). Therefore, a trial of fludrocortisone therapy was started with subsequent improvement in renin levels, weight gain, and growth velocity. After 10 months of the start of the medication, he presented hypertension. There is no literature about the late treatment of this condition for pathological short stature.
- 1 January 2023
- Published by SAGE Publications in Sage Open Medical Case Reports
- Vol. 11
Open AccessCongenital hyperreninemic hypoaldosteronism: A case report
Congenital hypoaldosteronism is a rare autosomal recessive or dominant endocrinopathy with variable penetrance, secondary to primary defects in aldosterone synthesis that could lead to hypovolemia, hyponatremia, hyperkalemia, failure to thrive, microcephaly, seizures, neurodevelopmental delay, or hearing loss. We present the case of a Colombian patient with congenital hypoaldosteronism, who owns two variants in the CPY11B2 gene, and a heterozygous pathogenic variant for nonclassical congenital adrenal hyperplasia. However, the patient missed follow-up and treatment for 6 years. At the age of 7 years, he resumed medical follow-up with laboratory findings of hyperreninemia and hypoaldosteronism, as well as clinical findings of strabismus, left mixed hyperacusis, and pathological short stature (−4.3 SD). Therefore, a trial of fludrocortisone therapy was started with subsequent improvement in renin levels, weight gain, and growth velocity. After 10 months of the start of the medication, he presented hypertension. There is no literature about the late treatment of this condition for pathological short stature.
- 28 June 2022
- Published by Elsevier in Diabetes & Metabolism
- Vol. 48 (5) , 101369
Liraglutide-induced effects on energy intake and glycemic profile are independent of total and intact GDF-15 levels in subjects with obesity and diabetes
- 28 June 2022
- Published by Elsevier in Diabetes & Metabolism
- Vol. 48 (5) , 101369
Liraglutide-induced effects on energy intake and glycemic profile are independent of total and intact GDF-15 levels in subjects with obesity and diabetes