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1.
Nutrients ; 13(10)2021 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-34684641

RESUMO

As medical doctors, we routinely check patient blood chemistry and CBC data to diagnose disease. However, these data and methods of analysis are very rarely used to find pre-disease conditions or treat undiagnosed malaise. Masatoshi Kaneko Ph.D. found that many pre-disease conditions and types of malaise could be detected using his unique method of blood data analysis, and could also be treated using personalized nutritional therapy as an alternative to using drugs. The authors of this article introduce personalized nutritional therapy based on blood data analysis (Kaneko's method), and present and discuss some clinical cases. In total, 253 pre-disease or undiagnosed patients were treated using this nutritional therapy approach, and most of them recovered from their chronic symptoms and pre-disease conditions. This novel nutritional therapy has the potential to help many presymptomatic and undiagnosed patients suffering from malaise.


Assuntos
Análise de Dados , Testes Hematológicos , Terapia Nutricional , Envelhecimento/fisiologia , Humanos , Qualidade de Vida , Inquéritos e Questionários
2.
Nutrients ; 13(5)2021 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-34067795

RESUMO

Matcha, a type of green tea, has a higher amino acid content than other types of tea. We previously examined the ability of matcha to improve cognitive function in older adults and determined that continuous matcha intake improves attention and executive function. This study aimed to compare the effects of matcha and caffeine and clarify the differences between these effects. The study was registered at the University Hospital Medical Information Network (UMIN000036578). The effect of single and continuous intake was compared, and the usefulness of continuous intake was evaluated under the stress condition. The Uchida-Kraepelin test (UKT) was used to induce mild acute stress, and the Cognitrax was used to evaluate cognitive function. A single dose of caffeine improved attentional function during or after stress loading. The reduced reaction time in the Cognitrax, observed following a single dose of matcha, was likely due to caffeine. The matcha group showed an increase in the amount of work after continuous intake, whereas the caffeine group only showed an increase in the amount of work for the UKT after a single dose. Ingesting matcha with caffeine improves both attention and work performance when suffering from psychological stress compared with caffeine alone.


Assuntos
Cafeína/administração & dosagem , Cognição/efeitos dos fármacos , Ingestão de Alimentos/psicologia , Estresse Psicológico/psicologia , Chá , Idoso , Atenção/efeitos dos fármacos , Método Duplo-Cego , Ingestão de Líquidos , Função Executiva/efeitos dos fármacos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Chá/química
3.
J Med Food ; 24(4): 333-341, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33751906

RESUMO

l-theanine (γ-glutamylethylamide), an amino acid in green tea, has been shown to affect brain functions by relieving stress disorders, improving mood, and maintaining normal sleep. However, the cognitive functions for which theanine is effective are unclear. This study aimed to clarify which cognitive functions are positively affected by intake of l-theanine. A double-blind, randomized, placebo-controlled study was conducted. The subjects were Japanese men and women aged 50-69 years. Mini Mental State Examination-Japanese version score was 24 or higher. Cognitrax was used as a test battery for cognitive function. Evaluations were performed before the intervention, after a single dose of l-theanine, and after 12 weeks of regular intake. The single dose of l-theanine reduced the reaction time to attention tasks (Stroop test, Part 1), and it increased the number of correct answers and decreased the number of omission errors in working memory tasks (4-Part continuous performance test, Part 4). In conclusion, our study indicated that l-theanine may contribute to improving attention, thus enhancing working memory and executive functions. Clinical Trial No.: UMIN000033812.


Assuntos
Cognição , Glutamatos , Afeto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Chá
4.
Nutr Res ; 88: 44-52, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33744591

RESUMO

Tea is a beverage commonly consumed worldwide. Matcha is a type of green tea produced by drying and grinding tea leaves (Camellia sinensis L.) into a fine powder. Matcha contains catechin, theanine, and caffeine, which affect cognitive function. Epidemiological studies conducted in Japan have shown that green tea consumption improves cognitive impairment. Previously, we found that daily matcha intake improves attention and executive function in middle-aged and older people. However, its effect on cognitive function in younger adults remains unclear. Moreover, it is unclear which cognitive functions are impaired by stress. This study aimed to clarify whether the administration of matcha improves the attentional function of young adults after mild acute stress and which cognitive function is improved. We included 42 participants aged 25 to 34 years who consumed 2 g of matcha daily for 2 weeks. The Uchida-Kraepelin test was used to induce mild acute psychological stress. Memory, attention, facial expression recognition, working memory, visual information, and motor function were evaluated. Reaction times on the Stroop test for attentional function were significantly lower in the matcha group than in the placebo group. Correct hits in the emotion perception test increased significantly for participants in the matcha group compared to those in the placebo group. We found no significant between-group differences in the other tests. In conclusion, after 2 weeks of matcha intake, the attentional function was maintained after mild acute psychological stress. Thus, matcha might improve cognitive function during or after stress conditions in young adults.


Assuntos
Atenção/efeitos dos fármacos , Cognição/efeitos dos fármacos , Fadiga , Estresse Psicológico/fisiopatologia , Chá/química , Chá/fisiologia , Adulto , Cafeína/administração & dosagem , Camellia sinensis/química , Catequina/administração & dosagem , Cognição/fisiologia , Método Duplo-Cego , Feminino , Glutamatos/administração & dosagem , Humanos , Japão , Masculino , Placebos
5.
Nutrients ; 12(11)2020 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-33233510

RESUMO

We previously performed a 4 week interventional trial that suggested that continuous intake of rosemary extract improves the mood states, fatigue, and cognitive function of working generation healthy adult Japanese men. However, the severity of depression in participants in our previous study was relatively mild. Therefore, in the present study, a post-hoc analysis of our previous study was conducted, limited to participants whose total mood disturbance (TMD) scores, which indicate greater mood disturbance, were above the median at baseline, to evaluate whether rosemary extract was effective for individuals with poor mental health. Following the intervention, the scores of TMD and "Confusion-Bewilderment" were significantly decreased (both p < 0.05), and scores of "Vigor-Activity" were significantly increased in the rosemary group (n = 8) compared with those in the control group (n = 13; p < 0.01). When comparing the scores from pre- and post-intervention, significant improvements in "Tension-Anxiety", "Vigor-Activity", "Fatigue on awakening", "Daytime sleepiness", and "Psychomotor speed" were observed in the rosemary group only (all p < 0.05). Based on these results, it was expected that rosemary extracts were effective for improving the mental energy and sleep quality of work-age men with poor mental health.


Assuntos
Nível de Saúde , Saúde Mental , Extratos Vegetais/farmacologia , Rosmarinus/química , Adulto , Ansiedade , Cognição , Fadiga , Humanos , Japão , Masculino , Transtornos do Humor
6.
Molecules ; 25(18)2020 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-32957612

RESUMO

Epidemiological studies in Japan, including the Nakajima study and the Tsurugaya study, have indicated that green tea consumption may improve cognitive impairment. Catechins, which are typical polyphenols contained in green tea, have been reported to have antioxidative, anti-inflammatory, and neuroprotective effects. However, their impact on human cognitive function remains unclear. Therefore, we performed a double-blind, randomized, controlled study to investigate the effect of 336.4 mg of decaffeinated green tea catechins (GTC) on cognitive function after a single dose and after 12 weeks of daily intake. This study included Japanese adults between the ages of 50 and 69 years with a Mini-Mental State Examination Japanese version score of >24 and self-assessed cognitive decline. The Cognitrax testing battery was used to evaluate cognitive function. The incorrect response rate on the Continuous Performance Test significantly decreased after a single dose of GTC. After 12 weeks of daily GTC intake, the response time for Part 4 of the 4-part Continuous Performance Test, which is a two-back test, was shortened. These results suggest that daily intake of GTC might have beneficial effects on working memory.


Assuntos
Catequina/farmacologia , Cognição/efeitos dos fármacos , Disfunção Cognitiva/prevenção & controle , Polifenóis/farmacologia , Chá/química , Administração Oral , Amiloide/sangue , Anti-Inflamatórios/farmacologia , Antioxidantes/farmacologia , Biomarcadores/sangue , Catequina/química , Suplementos Nutricionais , Método Duplo-Cego , Feminino , Humanos , Japão , Masculino , Pessoa de Meia-Idade , Fármacos Neuroprotetores/farmacologia , Testes Neuropsicológicos , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de Tempo , Resultado do Tratamento
7.
Yakugaku Zasshi ; 138(8): 1095-1101, 2018.
Artigo em Japonês | MEDLINE | ID: mdl-30068850

RESUMO

Chemotherapy-induced nausea and vomiting (CINV) is the most unbearable adverse effect of chemotherapy. The antiemesis guidelines of the National Comprehensive Cancer Network indicate that hyponatremia is a risk factor for CINV, although the relationship between the incidence of CINV and hyponatremia has not been sufficiently studied. This two-center prospective observational study evaluated whether low serum sodium concentrations were a risk factor for CINV. The study included 34 patients who were scheduled to receive first-line carboplatin- or oxaliplatin-based chemotherapy for gynecological or colorectal cancers. Patient diaries were used to record the daily incidences of CINV events during a 5-day period. The patients were divided based on the median serum sodium concentration into a low Na+ group (<141 mEq/L) and a high Na+ group (≥141 mEq/L). The incidences of delayed nausea were 27.8% in the high Na+ group and 62.5% in the low Na+ group (p=0.042), with complete control rates (no vomiting, rescue medication, or grade 2 nausea) of 77.8% and 43.8%, respectively (p=0.042). The time to complete control failure in each group was analyzed using the Kaplan-Meier method, which revealed a significantly shorter time in the low Na+ group (p=0.03). Therefore, these results indicate that low serum sodium concentrations may increase the risk of CINV.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias Colorretais/tratamento farmacológico , Neoplasias dos Genitais Femininos/tratamento farmacológico , Náusea/induzido quimicamente , Sódio/sangue , Vômito/induzido quimicamente , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Feminino , Humanos , Hiponatremia , Incidência , Masculino , Pessoa de Meia-Idade , Náusea/epidemiologia , Compostos Organoplatínicos/administração & dosagem , Compostos Organoplatínicos/efeitos adversos , Oxaliplatina , Estudos Prospectivos , Fatores de Risco
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