Alejandro Álvarez-Bustos

Dr. Alejandro Álvarez-Bustos

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Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

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

Representative Publications

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MAMariam El Assar
Mariam El Assar
AÁAlejandro Álvarez-Bustos
Alejandro Álvarez-Bustos
PSPatricia Sosa
Patricia Sosa
JAJavier Angulo
Javier Angulo
LMLeocadio Rodríguez Mañas
Leocadio Rodríguez Mañas
Functional status is considered the main determinant of healthy aging. Impairment in skeletal muscle and the cardiovascular system, two interrelated systems, results in compromised functional status in aging. Increased oxidative stress and inflammation in older subjects constitute the background for skeletal muscle and cardiovascular system alterations. Aged skeletal muscle mass and strength impairment is related to anabolic resistance, mitochondrial dysfunction, increased oxidative stress and inflammation as well as a reduced antioxidant response and myokine profile. Arterial stiffness and endothelial function stand out as the main cardiovascular alterations related to aging, where increased systemic and vascular oxidative stress and inflammation play a key role. Physical activity and exercise training arise as modifiable determinants of functional outcomes in older persons. Exercise enhances antioxidant response, decreases age-related oxidative stress and pro-inflammatory signals, and promotes the activation of anabolic and mitochondrial biogenesis pathways in skeletal muscle. Additionally, exercise improves endothelial function and arterial stiffness by reducing inflammatory and oxidative damage signaling in vascular tissue together with an increase in antioxidant enzymes and nitric oxide availability, globally promoting functional performance and healthy aging. This review focuses on the role of oxidative stress and inflammation in aged musculoskeletal and vascular systems and how physical activity/exercise influences functional status in the elderly.

13 September 2022 in BMC Geriatrics
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AÁAlejandro Álvarez-Bustos
Alejandro Álvarez-Bustos
BRBeatriz Rodríguez-Sánchez
Beatriz Rodríguez-Sánchez
JCJose Antonio Carnicero
Jose Antonio Carnicero
Walter Sepulveda-LoyolaWalter Sepulveda-Loyola
Walter Sepulveda-Loyola
FGFrancisco José JOSÉ GARCÍA García-García
Francisco José JOSÉ GARCÍA García-García
LMLeocadio Rodríguez Mañas
Leocadio Rodríguez Mañas
Objectives: Frailty and sarcopenia have been related with adverse events, including hospitalization. However, its combined effect with hospitalization-related outcomes, including costs, has not been previously investigated. Our purpose was to explore how frailty, sarcopenia and its interaction could impact on healthcare expenditures.Methods: 1358 community-dwelling older adults from the Toledo Study of Healthy Ageing (TSHA) were included. Sarcopenia was measured using the Foundation for the National Institutes of Health criteria fitted to our cohort. Frailty was defined according to Frailty Trait Scale 5 (FTS5) and the Frailty Index fitted to the cut-off points of TSHA population. Hospitalization costs were taken from hospital records and costs were attributed according to Diagnostic-Related Groups, using as the cost base year 2015. Two-part regression models were used to analyze the relationship between frailty and sarcopenia and hospital admission, number of hospitalizations, length of stay and hospitalization costs.Results: Sarcopenia was associated only with the probability of being admitted to hospital. Frailty was also associated with higher hospital use, regardless of the frailty tool used, but in addition increased hospital admission costs at follow-up by 23.72% per year and by 19.73% in the full model compared with non-frail individuals. The presence of sarcopenia did not increase the costs of frailty but, by opposite, frailty significantly increased the costs in people with sarcopenia, reaching by 46–56%/patient/year at follow-up. Older adults with frailty and sarcopenia had a higher risk of hospitalization, disregarding the tool used to assess frailty, and higher hospitalization costs (FTS5) in the full model, at the cross-sectional and at the follow-up level.Conclusions: Frailty is associated with increased hospitalization costs and accounts for the potential effects of sarcopenia.

EGEsther Garcia-Esquinas
Esther Garcia-Esquinas
RORosario Ortolá
Rosario Ortolá
IGIago Giné-Vázquez
Iago Giné-Vázquez
JCJosé A. Carnicero
José A. Carnicero
Asier MañasAsier Mañas
Asier Mañas
FRFernando Rodríguez-Artalejo
Fernando Rodríguez-Artalejo
We used data from 3041 participants in four cohorts of community-dwelling individuals aged ≥65 years in Spain collected through a pre-pandemic face-to-face interview and a telephone interview conducted between weeks 7 to 15 after the beginning of the COVID-19 lockdown. On average, the confinement was not associated with a deterioration in lifestyle risk factors (smoking, alcohol intake, diet, or weight), except for a decreased physical activity and increased sedentary time, which reversed with the end of confinement. However, chronic pain worsened, and moderate declines in mental health, that did not seem to reverse after restrictions were lifted, were observed. Males, older adults with greater social isolation or greater feelings of loneliness, those with poorer housing conditions, as well as those with a higher prevalence of chronic morbidities were at increased risk of developing unhealthier lifestyles or mental health declines with confinement. On the other hand, previously having a greater adherence to the Mediterranean diet and doing more physical activity protected older adults from developing unhealthier lifestyles with confinement. If another lockdown were imposed during this or future pandemics, public health programs should specially address the needs of older individuals with male sex, greater social isolation, sub-optimal housing conditions, and chronic morbidities because of their greater vulnerability to the enacted movement restrictions.

28 April 2021 in Supportive Care in Cancer
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AÁAlejandro Álvarez-Bustos
Alejandro Álvarez-Bustos
CPCristina G. de Pedro
Cristina G. de Pedro
MRMaría Romero-Elías
María Romero-Elías
JRJavier Ramos
Javier Ramos
POPablo Osorio
Pablo Osorio
ARAna Ruiz-Casado
Ana Ruiz-Casado

12 February 2024 in Aging Clinical and Experimental Research
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Helio Coelho-JuniorHelio Coelho-Junior
Helio Coelho-Junior
Riccardo CalvaniRiccardo Calvani
Riccardo Calvani
AÁAlejandro Álvarez-Bustos
Alejandro Álvarez-Bustos
MTMatteo Tosato
Matteo Tosato
ARAndrea Russo
Andrea Russo
Emanuele MarzettiEmanuele Marzetti
Emanuele Marzetti
Background: Declining physical performance in old age is associated with a wide range of negative health-related outcomes. However, it is unclear which physical capabilities should be prioritized to obtain prognostic information in older adults. Aims: To examine the associations between the performance on several physical function tests and falls, disability, and death in a well-characterized sample of very old Italian adults. Methods: This was a prospective cohort study of older adults who lived in the mountain community of the Sirente geographic area in Central Italy. Physical performance was assessed using isometric handgrip strength (IHG), walking speed (WS) at a usual and fast pace, 5-time sit-to-stand test (5STS), and sit-to-stand power measures. Appendicular skeletal muscle mass was estimated from calf circumference using a validated equation. History of falls, incident falls, and disability status according to basic Activities of Daily Living (ADLs) were recorded over two years. Survival status was obtained from the participants’ general practitioners and was confirmed by the National Death Registry over 10 years from enrolment. Linear, binary, and Cox regressions were performed to evaluate the association between physical performance measures and health outcomes. Results: The mean age of the 255 participants was 84.2 ± 5.1 years, and 161 (63.1%) were women. Logistic regression indicated that IHG was significantly associated with incident ADL disability, whereas specific sit-to-stand muscle power was an independent predictor of death. No significant associations were observed between physical function and falls. Conclusions: Our findings indicate selective associations between physical function tests and the occurrence of negative events in very old adults, with poor IHG predicting disability and specific sit-to-stand muscle power being longitudinally associated with death.

22 April 2025 in Nutrients
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IRIsabel Rodríguez-Sánchez
Isabel Rodríguez-Sánchez
JCJose Antonio Carnicero
Jose Antonio Carnicero
AÁAlejandro Álvarez-Bustos
Alejandro Álvarez-Bustos
FGFrancisco José JOSÉ GARCÍA García-García
Francisco José JOSÉ GARCÍA García-García
LMLeocadio Rodríguez Mañas
Leocadio Rodríguez Mañas
Helio Coelho-JuniorHelio Coelho-Junior
Helio Coelho-Junior
Background: Malnutrition may increase the risk of frailty in individuals with musculoskeletal pain. However, this scenario has not been explored in detail. As such, the present study was conducted to examine the effects of malnutrition on the risk of incident and worsening frailty in community-dwelling older adults with musculoskeletal pain. Methods: Data from 895 community-dwelling older adults participating in the Toledo Study of Healthy Ageing who reported experiencing musculoskeletal pain during the month preceding data collection (mean age: 74.9 ± 5.6 years) were analyzed. Pain characteristics (i.e., intensity, locations, and treatment) were assessed based on self-reported information regarding the last month. Malnutrition was operationalized according to the GLIM criteria. Frailty status was assessed at baseline and at follow-up (~2.99 years), according to the Frailty Phenotype paradigm, operationalized through the Frailty Trait Scale 5. Associations between the variables were tested using logistic regression analyses adjusted for many covariates established a priori. Results: Malnutrition increased the risk of frailty (odds ratio [OR] = 4.41) and worsening of frailty status (OR = 6.25) in the participants who used ≥2 groups of painkillers in comparison to their non-undernourished peers. Conclusions: The findings of the present study indicate that malnutrition increases the risk of both developing and worsening frailty in older adults with musculoskeletal disorders. In particular, an increased risk of incident frailty and worsening frailty status was found in undernourished individuals using ≥2 analgesic drugs. Our results suggest that nutritional assessment should be included in the evaluation of old people living with musculoskeletal pain.