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1.
Intern Med ; 63(1): 63-70, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-37164664

RESUMEN

Comprehensive genomic profiling (CGP) of a metastatic liver tumor biopsy specimen suggested that the patient, who was initially diagnosed with cholangiocarcinoma, had colorectal cancer. The identification of both FBXW7 and APC mutations is deemed characteristic of colorectal cancer. Indeed, subsequent colonoscopy revealed sigmoid colon carcinoma that led to tumor resection followed by systemic chemotherapy. CGP is principally used to identify agents that might potentially benefit the patient. However, results must be interpreted carefully to ensure consistency with the initial diagnosis.


Asunto(s)
Neoplasias Colorrectales , Neoplasias Hepáticas , Humanos , Mutación , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/secundario , Neoplasias Colorrectales/genética , Genómica/métodos
2.
Front Nutr ; 10: 1284497, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38111605

RESUMEN

Background: Three clinical trials have examined the chronic effects of medium-chain triglycerides (MCTs) on muscle mass and function in frail older adults (mean age 85 years old). However, significant increases in muscle mass and some muscle function relative to long-chain triglycerides (LCTs) have yet to be shown, possibly due to the small number of participants in each trial. Objective: We re-analyzed these previous clinical trials to clarify whether MCT supplementation can increase muscle mass and function. Analysis: After adding post hoc tests to the original report, we compared changes in measurement between the MCT and LCT groups in the first 2 trials and conducted a combined data analysis. Methods: In a combined data analysis, changes from baseline in measurements at the 3 months intervention in the MCTs- and LCTs-containing groups were assessed by analysis of covariance adjusted for baseline values of each measurement, age, sex, BMI, allocation to trial, habitual intakes in energy, protein, leucine, octanoic acid, decanoic acid, and vitamin D during the baseline period. The Mann-Whitney U test was used to analyze data on right and left knee extension times. Results: MCT supplementation for 3 months increased muscle function relative to LCT supplementation with and without an L-leucine (1.2 g) and vitamin D (cholecalciferol, 20 µg)-enriched supplement. In a combined data analysis (n = 29 in MCTs, n = 27 in LCTs), relative to supplementation with 6 g LCTs/day, supplementation with 6 g MCTs/day at dinner for 3 months significantly increased body weight (adjusted mean change from baseline: MCTs 1.2 vs. LCTs 0.2 kg, p = 0.023), right arm muscle area (MCTs 1.4 vs. LCTs-0.7 cm2, p = 0.002), left calf circumference (p = 0.015), right-hand grip strength (MCTs 1.6 vs. LCTs 0.3 kg, p = 0.017), right knee extension time (p = 0.021), left knee extension time (p = 0.034), walking speed (p = 0.002), and number of iterations in leg open and close test (p < 0.001) and decreased right triceps skinfold thickness (p = 0.016). Conclusion: In frail older adults, supplementation for 3 months with a low dose (6 g/day) of MCTs (C8:0 and C10:0) increased muscle mass and function. These findings indicate the potential for the practical use of MCTs in daily life in treating sarcopenia.

3.
J Nutr ; 150(9): 2383-2390, 2020 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-32652024

RESUMEN

BACKGROUND: Supplementation with medium-chain triglycerides (MCTs) was previously shown to increase muscle function in frail elderly individuals. OBJECTIVE: We aimed to assess effects of MCTs on cognition in such individuals. METHODS: We enrolled 64 elderly nursing home residents (85.5 ± 6.8 y; 13 men, 51 women; BMI 18.6 ± 2.5 kg/m2) in a 3-mo randomized, controlled, single-blinded, intervention trial. Participants were randomly allocated to 3 groups: the first group received supplemental L-leucine (1.2 g) and cholecalciferol (20 µg) enriched with 6 g/d of MCTs (LD + MCT group) as a positive control, the second group received 6 g/d of MCTs (MCT group) as the test nutrient, and the third group received 6 g/d of long-chain triglycerides (LCT group) as a negative control. Cognition (secondary outcome) was monitored 4 times: baseline, 1.5 and 3 mo after initiation of the intervention (intervention), and 1.5 mo after termination of the intervention (postintervention follow-up). Cognition scores were assessed by a linear mixed model (intention-to-treat analysis). RESULTS: MCT supplementation increased the Mini-Mental State Examination (MMSE) score by 3.5 points at the 3-mo intervention from baseline (P < 0.001) [intention-to-treat adjusted means: baseline 17.5 points (95% CI: 14.9, 20.2), 3-mo intervention 21.0 points (18.3, 23.7)], whereas LCT supplementation decreased the MMSE score by -0.7 points [baseline 17.0 points (95% CI: 14.4, 19.6), 3-mo intervention 16.3 points (13.6, 18.9)]. At the 3-mo intervention, the difference in MMSE score between the MCT (21.0 points) and LCT (16.3 points) groups became significant (P < 0.05). The increase in MMSE score in response to MCTs was 2.1-fold greater at 3 mo than at 1.5 mo and had returned to baseline value at the 4.5-mo postintervention follow-up visit. CONCLUSION: Supplementation with 6 g MCTs/d may improve the cognition of frail elderly individuals. This trial was registered at umin.ac.jp as UMIN000023302.


Asunto(s)
Pruebas Neuropsicológicas , Triglicéridos/farmacología , Anciano , Anciano de 80 o más Años , Femenino , Anciano Frágil , Humanos , Masculino , Triglicéridos/química
4.
Am J Clin Nutr ; 110(3): 652-665, 2019 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-31334544

RESUMEN

BACKGROUND: The combined supplementation of medium-chain triglycerides (MCTs), l-leucine-rich amino acids, and cholecalciferol was previously shown to increase muscle strength and function in frail elderly individuals. OBJECTIVE: We examined whether treatment with MCTs alone is sufficient to increase muscle strength and function and activities of daily living (ADL) in such individuals. METHODS: We enrolled 64 elderly nursing home residents (85.5 ± 6.8 y) in a 3-mo randomized, controlled, single-blinded intervention trial. The participants were randomly assigned to 3 groups: the first group received supplemental l-leucine (1.2 g) and cholecalciferol (20 µg) enriched with 6 g/d of MCTs (LD + MCT group) as a positive control, the second group received 6 g/d of MCTs (MCT group) as a target, and the third group received 6 g/d of long-chain triglycerides (LCT group) as a negative control. Changes in muscle mass, strength, function, and ADL were monitored 4 times: at baseline, at 1.5 and 3 mo after initiation of the intervention (intervention), and 1.5 mo after termination of the intervention (washout). RESULTS: The 64 participants randomly assigned to the 3 groups were included in an intention-to-treat analysis. Forty-eight participants completed the study and were included in a per-protocol analysis. At 3 mo, participants in the MCT group had a 48.1% increase in 10-s leg open and close test performance [intention-to-treat adjusted means: MCT 2.28 n/10 s (1.37, 3.19) compared with LCT -0.59 n/10 s (-1.52, 0.35), P < 0.05], a 27.8% increase in a 30-s repetitive saliva swallowing test [MCT 0.5 n/30 s (0.1, 1.0) compared with LCT -0.5 n/30 s (-0.9, 0.0), P < 0.05], and a 7.5% increase in Functional Independence Measure score, a questionnaire for assessing ADL [MCT 5.6 points (1.3, 9.9) compared with LCT -6.6 points (-11.3, -2.0), P < 0.05]. CONCLUSION: MCTs (6 g/d) could increase the muscle strength and function of frail elderly individuals and also improve their ADL. This trial was registered at the University Hospital Medical Information Network Clinical Trial Registry as UMIN000023302.


Asunto(s)
Suplementos Dietéticos , Fuerza de la Mano , Sarcopenia/dietoterapia , Triglicéridos/farmacología , Anciano , Anciano de 80 o más Años , Ejercicio Físico , Femenino , Humanos , Masculino , Casas de Salud , Estado Nutricional , Triglicéridos/administración & dosificación
5.
J Nutr Sci Vitaminol (Tokyo) ; 63(2): 133-140, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28552878

RESUMEN

The combined supplementation of medium-chain triglycerides (MCTs), L-leucine-rich amino acids, and cholecalciferol (vitamin D3) increase muscle strength and function in frail elderly individuals. However, their effects on cognition are unknown. We enrolled 38 elderly nursing home residents (mean age±SD, 86.6±4.8 y) in a 3-mo randomized, controlled, parallel group trial. The participants were randomly allocated to 3 groups: the first group received a L-leucine (1.2 g)- and cholecalciferol (20 µg)-enriched supplement with 6 g of MCT (LD+MCT); the second group received the same supplement with 6 g of long-chain triglycerides (LD+LCT); and the third group did not receive any supplements (control). Cognition was assessed at baseline and after the 3-mo intervention. The difference in changes among the groups was assessed with ANCOVA, adjusting for age and the baseline value as covariates. After 3 mo, the Mini-Mental State Examination (MMSE) score in the LD+MCT group increased by 10.6% (from 16.6 to 18.4 points, p<0.05). After 3 mo, the Nishimura geriatric rating scale for mental status (NM scale) score in the LD+MCT group increased by 30.6% (from 24.6 to 32.2 points, p<0.001), whereas that in the LD+LCT and control groups decreased by 11.2% (from 31.2 to 27.7 points, p<0.05) and 26.1% (from 27.2 to 20.1 points, p<0.001), respectively. The combined supplementation of MCTs (6 g), L-leucine-rich amino acids, and cholecalciferol may improve cognitive function in frail elderly individuals.


Asunto(s)
Cognición/efectos de los fármacos , Anciano Frágil , Leucina/administración & dosificación , Triglicéridos/administración & dosificación , Vitamina D/administración & dosificación , Anciano de 80 o más Años , Índice de Masa Corporal , Suplementos Dietéticos , Femenino , Humanos , Masculino , Fuerza Muscular/efectos de los fármacos , Método Simple Ciego
6.
J Nutr ; 146(5): 1017-26, 2016 05.
Artículo en Inglés | MEDLINE | ID: mdl-27075909

RESUMEN

BACKGROUND: Sarcopenia, the loss of skeletal muscle mass, strength, and function, is common in elderly individuals but difficult to treat. OBJECTIVE: A combination of nutrients was investigated to treat sarcopenia in very frail elderly adults. METHODS: We enrolled 38 elderly nursing home residents (11 men and 27 women with a mean ± SD age of 86.6 ± 4.8 y) in a 3-mo randomized, controlled, single-blind, parallel group trial. The participants were randomly allocated to 3 groups. The first group received a daily l-leucine (1.2 g) and cholecalciferol (20 µg)-enriched supplement with 6 g medium-chain triglycerides (TGs) (MCTs) (LD + MCT); the second group received the same leucine and cholecalciferol-enriched supplement with 6 g long-chain TGs (LD + LCT); and the third group did not receive any supplements (control). The supplement and oils were taken at dinner, and changes in muscle mass, strength, and function were monitored. RESULTS: The increase in body weight in the LD + MCT (1.1 ± 1.0 kg) and LD + LCT (0.8 ± 1.1 kg) groups was greater than that in the control group (-0.5 ± 0.9 kg) (P < 0.05). After 3 mo, participants in the LD + MCT group had a 13.1% increase in right-hand grip strength (1.2 ± 1.0 kg, P < 0.01), a 12.5% increase in walking speed (0.078 ± 0.080 m/s, P < 0.05), a 68.2% increase in a 10-s leg open-and-close test performance (2.31 ± 1.68 n/10 s, P < 0.001), and a 28.2% increase in peak expiratory flow (53 ± 59 L/min, P < 0.01). No significant improvements in muscle mass, strength, or function were observed in the LD + LCT or control groups. CONCLUSION: The combined supplementation of MCTs (6 g), leucine-rich amino acids, and cholecalciferol at dinner may improve muscle strength and function in frail elderly individuals. This trial was registered at the University Hospital Medical Information Network Clinical Trials Registry as UMIN000017567.


Asunto(s)
Colecalciferol/uso terapéutico , Anciano Frágil , Leucina/uso terapéutico , Fuerza Muscular/efectos de los fármacos , Músculo Esquelético/efectos de los fármacos , Sarcopenia/tratamiento farmacológico , Triglicéridos/uso terapéutico , Anciano de 80 o más Años , Peso Corporal/efectos de los fármacos , Colecalciferol/farmacología , Suplementos Dietéticos , Femenino , Marcha , Fuerza de la Mano , Humanos , Leucina/farmacología , Masculino , Músculo Esquelético/fisiología , Sarcopenia/fisiopatología , Método Simple Ciego , Triglicéridos/farmacología , Vitaminas/farmacología , Vitaminas/uso terapéutico
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