Facultad de Ciencias de la Salud y Bienestar Humano

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Universidad Indoamérica

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Sleep disorders and menopausal symptoms: a Latin American perspective on postmenopausal health
(2025)
Eugenio E. Arteaga
;
Juan E. Blümel
;
María S. Vallejo
;
Carlos Salinas
;
Konstantinos Tserotas
Objective: This cross-sectional, observational study, conducted in nine Latin American countries, aimed to examine the association between hot flashes and insomnia, and whether the severity of vasomotor symptoms (VMS) correlates with sleep disturbances. Method: The study collected sociodemographic and clinical data, and evaluated the presence of sleep disorders using Jenkin’s Sleep Scale (JSS-4) and menopausal symptoms using the Menopause Rating Scale (MRS) questionnaire. Results: The study included 1185 postmenopausal women with average age 56.9 ± 5.7 years, body mass index (BMI) of 26.5 ± 5.2 kg/m² and 8.6 ± 6.4 years since menopause. Overall, 20.6% reported sleep disturbances. Compared to those without sleep problems, affected women had longer postmenopausal duration (12 ± 9.0 vs. 10.8 ± 7.8, p < 0.03), had higher BMI (27.9 ± 5.6 vs. 26.1 ± 5.0, p < 0.001), were more often smokers and homemakers, and had more comorbidities. They were also less likely to have a partner or have used menopausal hormone therapy. Sleep disturbances increased proportionally with VMS severity (p < 0.01). In multivariate analysis, sleep disorders were associated with VMS (odds ratio [OR] 4.47), psychotropic use (OR 1.84), obesity (OR 1.45) and comorbidities (OR 1.45). Conclusion: Women with VMS were more likely to experience sleep disorders and this effect was proportional to the magnitude of the hot flashes. The study also presents several factors associated with sleep disorders in postmenopausal women that should be considered to help prevent these disturbances.
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Natural Products Targeting Key Molecular Hallmarks in Gastric Cancer: Focus on Apoptosis, Inflammation, and Chemoresistance
(2026)
Simancas Racines, Daniel
;
Cagua Ordoñez, Jaen
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Angamarca Iguago, Jaime
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Parise Vasco, Juan Marcos
;
Reytor González, Claudia
Natural products have emerged as promising multi-target agents for addressing the complex biology of gastric cancer, a malignancy characterized by marked molecular heterogeneity, late clinical presentation, and frequent resistance to systemic therapies. This narrative synthesis integrates primarily preclinical evidence, with emerging clinical data, on how naturally derived compounds modulate three central molecular processes that drive gastric tumor progression and therapeutic failure: evasion of programmed cell death, persistent tumor-promoting inflammation, and chemoresistance. Compounds such as curcumin, resveratrol, berberine, ginsenosides, quercetin, and epigallocatechin gallate restore apoptotic competence by shifting the balance between pro-survival and pro-death proteins, destabilizing mitochondrial membranes, promoting cytochrome c release, and activating caspase-dependent pathways. These agents also exert potent anti-inflammatory effects by inhibiting nuclear factor kappa B and signal transducer and activator of transcription signaling, suppressing pro-inflammatory cytokine production, reducing cyclooxygenase activity, and modulating the tumor microenvironment through changes in immune cell behavior. In parallel, multiple natural compounds function as chemo-sensitizers by inhibiting drug efflux transporters, reversing epithelial–mesenchymal transition, attenuating cancer stem cell-associated traits, and suppressing pro-survival signaling pathways that sustain resistance. Collectively, these mechanistic actions highlight the capacity of natural products to simultaneously target interconnected hallmarks of gastric cancer biology. Ongoing advances in formulation strategies may help overcome pharmacokinetic limitations; however, rigorous biomarker-guided studies and well-designed clinical trials remain essential to define the translational relevance of these compounds.
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The role of negative affects as mediators in the relationship between stress and mental health in Ecuadorian adolescents
(2023)
Moreta-Herrera R.
;
Zumba-Tello D.
;
de Frutos-Lucas J.
;
Llerena-Freire S.
;
Salinas-Palma A.
Background Stress and negative emotions have adverse consequences for the mental health of adolescents, an area that deserves further examination. These attributes are associated with each other and regularly interact in different ways. The way they exert an influence can be both direct and indirect, so the general objective is to elucidate the potential mediating effect of negative affects in the relationship between stress and mental health in Ecuadorian adolescents. participants and procedure An explanatory and mediation design based on structural equation modeling (SEM) was applied with 1154 high school students from Ecuador (67.7% women) aged 14 to 19 years (M = 15.69). results In our sample, the presence of stress and negative affect is moderate, while that of mental health problems is low. According to our final model, these variables covary with and influence each other in the following way: stress (X) has a direct effect on mental health (Y) and also an indirect effect mediated by negative affect (M). The structural regression model proposed explains 63.0% of the variance in mental health. conclusions Stress exerts a relevant impact on mental health, both through direct and indirect pathways. The indirect pathway, mediated by negative affect, opens the door to novel interventional strategies to foster mental health. © 2023 Termedia Publishing House Ltd.. All rights reserved
Scopus© Citations 1 28
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Alcohol and Substance Use After Bariatric Surgery: Nutritional Risks and Clinical Implications in Long-Term Postoperative Care
(2026)
Martín Campuzano-Donoso
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Reytor González, Claudia
;
Gerardo Sarno
;
Martha Montalvan
;
Luigi Barrea
Metabolic and bariatric surgery (MBS) has evolved into a highly effective neurohormonal intervention for severe obesity; however, it introduces unique long-term vulnerabilities, particularly regarding alcohol (AUD) and substance use disorders (SUD). This review synthesizes the epidemiological, pharmacokinetic, and neurobiological drivers of postoperative substance misuse. Procedures like Roux-en-Y gastric bypass (RYGB) radically alter ethanol metabolism, eliminating first-pass metabolism and accelerating gastric emptying, while simultaneously recalibrating reward pathways, creating a “reward gap” that facilitates addiction transfer. These physiological shifts exacerbate critical micronutrient deficiencies (thiamine, B12, iron), increase the risk of post-bariatric hypoglycemia, and correlate with higher rates of liver cirrhosis and suicide. Furthermore, substance use is a primary driver of suboptimal weight loss trajectories and weight regain. Mitigation requires a lifelong, multidisciplinary framework involving preoperative risk stratification, validated screening (e.g., AUDIT-C), and targeted nutritional supplementation to safeguard the long-term metabolic and psychological benefits of MBS.
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Synergistic Effects of Protein Intake and Exercise on Biomarkers of Sarcopenia: A Systematic Review
(2026)
Cruz Pierard, Stephanie Marie
;
Samuel Iñiguez-Jiménez
Sarcopenia, defined as the progressive decline of muscle mass, strength, and function, severely compromises autonomy and quality of life in older adults. This systematic review evaluated synergistic effects of protein supplementation combined with resistance exercise on biochemical and functional biomarkers of sarcopenia. The search for scientific evidence was conducted in PubMed, Scopus, ScienceDirect, and Cochrane databases (2019–2025), applying explicit inclusion and exclusion criteria, like only randomized controlled trials in humans, published in English, Spanish, or French, were included to ensure high-quality evidence. After selection, the risk of bias of the articles was assessed according to the Cochrane Handbook for Systematic Reviews of Interventions. Seven randomized controlled trials, with a total of 260 participants, met the eligibility criteria. Interventions combining resistance exercise three times per week at 60–80% of one-repetition maximum with daily protein supplementation of at least 15 g, mainly from dairy sources, showed synergistic effects. Improvements were observed in inflammatory and anabolic biomarkers, with reductions in myostatin, activin, and IL-6, and increases in IGF-1, follistatin, and IL-10. Functional outcomes included gains in muscle strength, fat-free mass, and muscle fiber cross-sectional area. Despite heterogeneity in duration and sample size, findings support this combined approach as a promising and clinically applicable strategy to prevent and treat sarcopenia. No external funding was received, and the review is registered in PROSPERO (CRD42025640989).
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Neurological dysfunction and exposure to agrotoxics [Disfunción neurológica y exposición a agrotóxicos]
(2022)
Andrade-Mora D.S.
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Celi-Simbaña S.S.
;
Celi-Simbaña K.P.
[No abstract available]
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Endometriosis as a Systemic and Complex Disease: Toward Phenotype-Based Classification and Personalized Therapy
(2026)
Simancas Racines, Daniel
;
Emilia Jiménez-Flores
;
Martha Montalvan
;
Raquel Horowitz
;
Valeria Araujo
Endometriosis is traditionally conceptualized as a pelvic lesion–centered disease; however, mounting evidence indicates it is a chronic, systemic, and multifactorial inflammatory disorder. This review examines the molecular dialog between ectopic endometrial tissue, the immune system, and peripheral organs, highlighting mechanisms that underlie disease chronicity, symptom variability, and therapeutic resistance. Ectopic endometrium exhibits distinct transcriptomic and epigenetic signatures, disrupted hormonal signaling, and a pro-inflammatory microenvironment characterized by inflammatory mediators, prostaglandins, and matrix metalloproteinases. Immune-endometrial crosstalk fosters immune evasion through altered cytokine profiles, extracellular vesicles, immune checkpoint molecules, and immunomodulatory microRNAs, enabling lesion persistence. Beyond the pelvis, systemic low-grade inflammation, circulating cytokines, and microRNAs reflect a molecular spillover that contributes to chronic pain, fatigue, hypothalamic–pituitary–adrenal axis dysregulation, and emerging gut–endometrium interactions. Furthermore, circulating biomarkers—including microRNAs, lncRNAs, extracellular vesicles, and proteomic signatures—offer potential for early diagnosis, patient stratification, and monitoring of therapeutic responses. Conventional hormonal therapies demonstrate limited efficacy, whereas novel molecular targets and delivery systems, including angiogenesis inhibitors, immune modulators, epigenetic regulators, and nanotherapeutics, show promise for precision intervention. A systems medicine framework, integrating multi-omics analyses and network-based approaches, supports reconceptualizing endometriosis as a systemic inflammatory condition with gynecologic manifestations. This perspective emphasizes the need for interdisciplinary collaboration to advance diagnostics, therapeutics, and individualized patient care, ultimately moving beyond a lesion-centered paradigm toward a molecularly informed, holistic understanding of endometriosis.
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Sleep disturbances are associated with cognitive impairment in postmenopausal women
(2025)
Álvaro Monterrosa-Castro
;
Peter Chedraui
;
Juan E. Blümel
;
Alejandra Elizalde-Cremonte
;
María T. Espinoza
To evaluate the association between severe sleep problems and mild cognitive impairment (MCI) in postmenopausal women, we conducted a sub-analysis of a cross-sectional, multinational investigation between January and November 2023 among postmenopausal women younger than 70 years attending gynecological consultations in nine Latin American countries. MCI was assessed using the Montreal Cognitive Assessment (MoCA) tool, and severe sleep problems were evaluated with two validated instruments: the third question of the Menopause Rating Scale (MRS, score ≥3) and the Jenkins Sleep Scale (JSS, total score ≥12). Two adjusted logistic regression models were used to examine the association between the two measures of severe sleep problems and MCI, adjusting for relevant covariates. The analysis included 1,185 postmenopausal women with a mean age of 56.9 years. Severe sleep problems were significantly more frequent among women with MCI compared to those without MCI, whether assessed by the MRS (28.3 percent vs. 16.6 percent) or the JSS (31.6 percent vs. 18.4 percent; both p <.001). In adjusted regression models, severe sleep problems remained independently associated with MCI (MRS: aOR = 1.81, 95 percent CI: 1.26–2.60; JSS: aOR = 1.88, 95 percent CI: 1.31–2.69). Additional factors associated with a higher likelihood of MCI included physical inactivity and greater parity, while ever-use of menopausal hormone therapy and higher educational attainment were associated with a reduced likelihood of MCI. In this sample of postmenopausal Latin American women, severe sleep problems were associated with a higher likelihood of MCI, and factors such as physical inactivity, educational attainment, parity, and ever use of menopausal hormone therapy were also independently related to this condition
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Robotic-Assisted Gait Training Combined with Multimodal Rehabilitation for Functional Recovery in Acute Dermatomyositis: A Case Report
(2025)
Esparza Yánez, Wilmer
;
Rebeca Benalcazar-Aguilar
;
Gabriela Moreno-Andrade
;
Israel Vinueza-Fernández
This case report examines the impact of robotic-assisted therapy (Lokomat) on functional recovery in a 28-year-old male patient with acute dermatomyositis (DM), an autoimmune inflammatory myopathy causing progressive muscle weakness and disability. The patient underwent 21 sessions of robotic therapy combined with physical therapy, and occupational therapy over seven weeks. Assessments were conducted at baseline, week 10, and week 21 using standardized measures for balance, muscle strength, and functionality. Results demonstrated significant improvements across all domains: balance scores progressed from severe impairment (4/56 Berg, 0/28 Tinetti) to near-normal function (55/56, 24/28, respectively); muscle strength increased from grade 1/5 to 4/5 (MMT-8) in all tested muscle groups; and functionality improved from moderate dependence (59/126 FIM) to complete independence (126/126). The trunk functionality scores showed remarkable recovery from 12/100 to 100/100 (TCT), indicating restored trunk control. Lokomat-assisted therapy combined with conventional rehabilitation effectively improves proximal weakness and postural instability in DM. Robotic therapy enhances motor learning via repetitive movements and reduces therapist workload. Though limited by a single-case design, this study offers preliminary evidence for robotic rehabilitation in DM, previously unexplored. Controlled studies are needed to standardize protocols and validate results in larger cohorts. Advanced technologies show promise for functional recovery in inflammatory myopathies.
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Integral communication on city-brands making: Contributions, strains and challenges [Comunicación integral en construcción de marcas ciudad: Aportes, tensiones y desafíos]
(2017)
Navas J.S.G.
;
Gonzalez, J.
The following qualitative work analyzes the relationship between integrated communication and the construction of city brands from the very perspective of the professionals of communication, who allocate different meanings to this process. The construction of city brands is challenging. There has been an investigation coming from the tensions and challenges that arise from the construction and management of a city brand. Furthermore, a research was carried out through open interviews and discussion groups, this technique allowed to frame historically and socially the professional experiences and the collective construction of a dialogue. Additionally, based on a thematic and content analysis, the textual data was organized and analyzed, this process allowed to created categories and a referential framework that places the purpose of the study. In conclusion, a renaissance figure in communication vanishes before the active participation of all the communication professionals, who ought to work in an integrated, inclusive and collaborative processes beyond the commercial and tourist point, thus, a real change and transformation of a city could be seen from inside and out.
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Facultad de Ciencias de la Salud y Bienestar Humano

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