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Obesity and breast cancer: exploring the nexus of chronic inflammation, metabolic dysregulation, and nutritional strategies
(Informa UK Limited, 2025-06-23)
Claudia Reytor-González
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Daniel Simancas-Racines
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Náthaly Mercedes Román-Galeano
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Martín Campuzano-Donoso
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Angelo Michele Carella
The global prevalence of obesity has risen to epidemic proportions, posing significant health challenges across populations and contributing to increased morbidity and mortality from non-communicable diseases. Among its many consequences, obesity is now firmly established as a modifiable risk factor for breast cancer, particularly in postmenopausal women. The association between obesity and breast cancer is driven by complex and interrelated biological mechanisms, including chronic low-grade inflammation, hormonal imbalances, adipokine dysregulation, insulin resistance, and metabolic dysfunction. These factors collectively create a pro-tumorigenic environment that supports cancer initiation, progression, and recurrence. This review explores the multifaceted nexus between obesity and breast cancer, emphasizing the critical role of inflammatory, hormonal, and metabolic pathways in mediating disease risk and outcomes. Additionally, it highlights the emerging contribution of gut microbiome dysbiosis in modulating host immunity and systemic inflammation in the context of obesity. Nutritional strategies—ranging from dietary pattern modification to caloric restriction and time-restricted feeding (TRF)—are examined for their potential to reduce risk, enhance treatment efficacy, and improve survivorship in breast cancer patients.
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Navigating the weight: The impact of obesity on gastrointestinal cancer surgery and strategies for improved outcomes
(Elsevier BV, 2025-09-01)
Gerardo Sarno
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Claudia Reytor-González
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Evelyn Frias-Toral
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Martín Campuzano-Donoso
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Christos S. Katsanos
Obesity significantly affects gastrointestinal cancer surgery outcomes by creating complex challenges throughout the preoperative, intraoperative, and postoperative stages. This narrative review explores the intricate relationship between obesity and GIC surgery, highlighting the dual burden of obesity as a global public health issue and a determinant of surgical complications. The review aims to analyze physiological and technical hurdles, including limited visibility, prolonged operative times, increased perioperative risks, and adverse recovery outcomes associated with obesity. Evidence emphasizes the critical role of excess visceral fat, systemic inflammation, and insulin resistance in elevating surgical risks. Mitigation strategies involve preoperative nutritional optimization, use of advanced surgical technologies such as robotic-assisted and laparoscopic systems, and individualized postoperative care, encompassing early mobilization, tailored pain management, and close monitoring of metabolic parameters. Despite advancements, knowledge gaps remain, particularly regarding sarcopenic obesity and the long-term impact of preoperative dietary interventions. Future research should focus on refining minimally invasive techniques, integrating personalized medicine, and exploring innovative perioperative protocols to address obesity-related risks effectively. By fostering a multidisciplinary approach, this review underscores the necessity for targeted interventions to enhance outcomes and improve the quality of care for patients with obesity undergoing gastrointestinal cancer surgery.
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Harnessing nutrition to combat MASLD: a comprehensive guide to food-based therapeutic strategies
(Informa UK Limited, 2025-05-06)
Reytor-gonzález Claudia
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Simancas-racines Daniel
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Campuzano Donoso Martín
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Castano Jimenez Janeth C.
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Román-galeano Náthaly Mercedes
Metabolic dysfunction-associated steatotic liver disease is a growing global health issue linked to obesity, insulin resistance, and metabolic syndrome. Diet plays a key role in its progression and management. This narrative review highlights evidence-based nutritional strategies, including the Mediterranean diet, low-carbohydrate and ketogenic diets, and high-fiber intake, which improve insulin sensitivity, reduce hepatic fat, and lower inflammation. Nutritional deficiencies, such as low vitamin D, choline, and omega-3 levels, exacerbate metabolic dysfunction-associated steatotic liver disease, emphasizing the need for targeted supplementation. Emerging approaches, including gut microbiota modulation, precision nutrition, and nutraceuticals like resveratrol and curcumin, offer promising therapeutic potential. A multidisciplinary approach integrating dietary and lifestyle modifications is essential for effective metabolic dysfunction-associated steatotic liver disease management.
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Oesophageal adenocarcinoma, obesity, and cancer: the role of nutrition in prevention and management
(Informa UK Limited, 2025-05-29)
REYTOR GONZÁLEZ, CLAUDIA MARÍA
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SIMANCAS RACINES, DANIEL ALEJANDRO
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Emilia Jiménez Flores
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Martín Campuzano Donoso
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Angelo Michele Carella
Oesophageal adenocarcinoma (EAC) is increasingly associated with obesity, metabolic dysfunction, and genetic predispositions. This review explores how nutritional factors interact with these risk elements, emphasizing the potential of dietary strategies in EAC prevention and management. Diets such as the Mediterranean and plant-based patterns may reduce inflammation, oxidative stress, and metabolic imbalance, thereby modulating cancer risk. Nutrient-rich foods–particularly omega-3 fatty acids, cruciferous vegetables, and dietary fibre–offer additional protective effects. Personalized nutrition, tailored to individual genetic and metabolic profiles, is emerging as a promising tool in cancer prevention. Moreover, weight management strategies like caloric restriction and intermittent fasting may contribute to risk reduction. Integrating these approaches into clinical and public health practices could play a critical role in mitigating the underlying drivers of EAC. Further research is needed to strengthen dietary guidelines and advance precision nutrition for high-risk populations.
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Signals for Muscular Protein Turnover and Insulin Resistance in Critically Ill Patients: A Narrative Review
(MDPI AG, 2023-02-21)
Sebastián P. Chapela
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SIMANCAS RACINES, DANIEL ALEJANDRO
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Martha Montalvan
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Evelyn Frias-Toral
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Alison Simancas-Racines
<jats:p>Sarcopenia in critically ill patients is a highly prevalent comorbidity. It is associated with a higher mortality rate, length of mechanical ventilation, and probability of being sent to a nursing home after the Intensive Care Unit (ICU). Despite the number of calories and proteins delivered, there is a complex network of signals of hormones and cytokines that affect muscle metabolism and its protein synthesis and breakdown in critically ill and chronic patients. To date, it is known that a higher number of proteins decreases mortality, but the exact amount needs to be clarified. This complex network of signals affects protein synthesis and breakdown. Some hormones regulate metabolism, such as insulin, insulin growth factor glucocorticoids, and growth hormone, whose secretion is affected by feeding states and inflammation. In addition, cytokines are involved, such as TNF-alpha and HIF-1. These hormones and cytokines have common pathways that activate muscle breakdown effectors, such as the ubiquitin–proteasome system, calpain, and caspase-3. These effectors are responsible for protein breakdown in muscles. Many trials have been conducted with hormones with different results but not with nutritional outcomes. This review examines the effect of hormones and cytokines on muscles. Knowing all the signals and pathways that affect protein synthesis and breakdown can be considered for future therapeutics.</jats:p>
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The Impact of a Very-Low-Calorie Ketogenic Diet in the Gut Microbiota Composition in Obesity
(MDPI AG, 2023-06-13)
ZAMBRANO ESPINOSA, ANA KARINA
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CADENA ULLAURI, SANTIAGO ANDRE
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Evelyn Frias-Toral
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Sebastián Chapela
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Martha Montalván
<jats:p>The very-low-calorie KD (VLCKD) is characterized by a caloric intake of under 800 kcal/day divided into less than 50 g/day of carbohydrate (13%) and 1 to 1.5 g of protein/kg of body weight (44%) and 43% of fat. This low carbohydrate intake changes the energy source from glucose to ketone bodies. Moreover, clinical trials have consistently shown a beneficial effect of VLCKD in several diseases, such as heart failure, schizophrenia, multiple sclerosis, Parkinson’s, and obesity, among others. The gut microbiota has been associated with the metabolic conditions of a person and is regulated by diet interactions; furthermore, it has been shown that the microbiota has a role in body weight homeostasis by regulating metabolism, appetite, and energy. Currently, there is increasing evidence of an association between gut microbiota dysbiosis and the pathophysiology of obesity. In addition, the molecular pathways, the role of metabolites, and how microbiota modulation could be beneficial remain unclear, and more research is needed. The objective of the present article is to contribute with an overview of the impact that VLCKD has on the intestinal microbiota composition of individuals with obesity through a literature review describing the latest research regarding the topic and highlighting which bacteria phyla are associated with obesity and VLCKD.</jats:p>

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