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japanese diet

Satoshi Murao, Yasunori Takata, Mitsugi Yasuda, Haruhiko Osawa, Fumikazu Kohi
Background: Considering sex differences, salt sensitivity and insulin resistance (IR), the effect of sodium restriction and increased potassium intake on blood pressure remains unclear in normotensive Asian individuals, compared to that in hypertensive patients. Methods: To assess the influence of sodium and potassium intake in normotensive individuals, we evaluated the estimated 24-hour urinary sodium and potassium excretion rate in 3,392 drug-naïve normotensive Japanese individuals (average age: 48...
March 14, 2018: American Journal of Hypertension
Theodore W Kurtz, Stephen E DiCarlo, Michal Pravenec, R Curtis Morris
High salt intake is one of the major dietary determinants of hypertension and cardiovascular disease in Japan and throughout the world. Although dietary salt restriction may be of clinical benefit in salt-sensitive individuals, many individuals may not wish, or be able to, reduce their intake of salt. Thus, identification of functional foods that can help protect against mechanistic abnormalities mediating salt-induced hypertension is an issue of considerable medical and scientific interest. According to the "vasodysfunction" theory of salt-induced hypertension, the hemodynamic abnormality initiating salt-induced increases in blood pressure usually involves subnormal vasodilation and abnormally increased vascular resistance in response to increased salt intake...
March 12, 2018: Journal of Cardiology
Kayo Kurotani, Palitha Karunapema, Kapila Jayaratne, Masao Sato, Takuya Hayashi, Hiroshi Kajio, Shoji Fukuda, Hisao Hara, Osamu Okazaki, Achala Upendra Jayatilleke, Daisuke Nonaka, Mitsuhiko Noda, Tetsuya Mizoue
The differences in the morbidity and mortality of cardiovascular diseases between Sri Lankan and Japanese populations might be explained by the differences in their diet, especially fat. To test the hypothesis that the fatty acid (FA) compositions differ between Sri Lankan and Japanese populations and that high concentrations of n-3 polyunsaturated FAs and linoleic acid are associated with a low level of arteriosclerosis, the authors compared the circulating FA compositions between Sri Lankan and Japanese populations and examined the association of the circulating FA composition with arterial stiffness in each population...
February 2018: Nutrition Research
Yoshihiro Miyake, Keiko Tanaka, Hitomi Okubo, Satoshi Sasaki, Masashi Arakawa
OBJECTIVES: The present prebirth cohort study examined the association between maternal caffeine consumption during pregnancy and behavioral problems in Japanese children aged 5 years. METHODS: Subjects were 1199 mother-child pairs. Dietary intake was assessed using a diet history questionnaire. Emotional problems, conduct problems, hyperactivity problems, and peer problems were assessed using the Japanese parent-report version of the Strengths and Difficulties Questionnaire...
March 13, 2018: Nutritional Neuroscience
Ehab S Eshak, Hiroyasu Iso, Kazumasa Yamagishi, Koutatsu Maruyama, Mitsumasa Umesawa, Akiko Tamakoshi
Several studies have related cardiovascular disease (CVD) to serum concentrations of copper and zinc but not to their dietary intakes. We thought to examine the association between dietary intakes of copper and zinc with risk of mortality from CVD in a prospective study encompassing 58,646 healthy Japanese men and women aged 40-79 years. The intakes of copper and zinc were determined by a validated self-administered food frequency questionnaire, and their associations with risk of mortality from CVD were evaluated by Cox proportional hazard modelling...
February 13, 2018: Journal of Nutritional Biochemistry
Ryuji Furihata, Chisato Konno, Masahiro Suzuki, Sakae Takahashi, Yoshitaka Kaneita, Takashi Ohida, Makoto Uchiyama
OBJECTIVE: To investigate the relationship between unhealthy lifestyles factors and depressive symptoms among the general adult population in Japan. METHOD: Participants were randomly selected from the Japanese general adult population. Data from 2334 people aged 20 years or older were analyzed. This cross-sectional survey was conducted in August and September 2009. Participants completed a face-to-face interview about unhealthy lifestyle factors, including lack of exercise, skipping breakfast, a poorly balanced diet, snacking between meals, insufficient sleep, current smoking, alcohol drinking, and obesity...
March 3, 2018: Journal of Affective Disorders
Takuo Kubota, Hirofumi Nakayama, Taichi Kitaoka, Yosikazu Nakamura, Seiji Fukumoto, Ikuma Fujiwara, Yukihiro Hasegawa, Kenji Ihara, Sachiko Kitanaka, Satomi Koyama, Satoshi Kusuda, Haruo Mizuno, Keisuke Nagasaki, Koji Oba, Yuko Sakamoto, Noriyuki Takubo, Toshiaki Shimizu, Yusuke Tanahashi, Kosei Hasegawa, Hirokazu Tsukahara, Tohru Yorifuji, Toshimi Michigami, Keiichi Ozono
There is concern that vitamin D deficiency is prevalent among children in Japan as well as worldwide. We conducted a nationwide epidemiologic survey of symptomatic vitamin D deficiency to observe its incidence rate among Japanese children. A questionnaire inquiring the number of new patients with vitamin D deficiency rickets and/or hypocalcemia for 3 years was sent to 855 randomly selected hospitals with a pediatrics department in Japan. In this survey, we found that 250 children were diagnosed with symptomatic vitamin D deficiency...
March 10, 2018: Endocrine Journal
Mengjuan Shi, Cunli Zhang, Ivan Fan Xia, Siu To Cheung, Kwong Sen Wong, Ka-Hing Wong, Doris W T Au, David E Hinton, Kevin W H Kwok
Selenium (Se) is an essential element and its biological activity is related to its speciation. It is also well-known that in excess it can cause teratogenesis in fish and birds. In this study we compared dietary toxicity of elemental selenium nanoparticles (SeNPs) with selenite and selenomethionine (Se-Met). Japanese medaka (Oryzias latipes) was used as a laboratory model to determine Se effects on adults and their offspring. Adult females were individually exposed using a dry diet fortified with 0, 10 or 20 µg/g of the three Se species for 7 days and then allowed to breed for 3 days...
March 8, 2018: Ecotoxicology and Environmental Safety
Zeinab Khoobbakht, Mehrdad Mohammadi, Mohammad Roostaei-Ali Mehr, Fahimeh Mohammadghasemi, Mohammad Mehdi Sohani
The objective was to examine the effect of different dietary zinc sources on reproduction of male Japanese quail. A total of 512 quail chicks (day-old) were divided into four groups with four replications for a period of 42 days. After this period, excess chicks were removed to attain the ratio of one male to three females and 16 quail in each subgroup. At 52 to 60 d of age, the eggs were collected and incubated. The basal diet (control) contained no zinc and the other three experimental diets were supplemented with 25 and 50 mg/kg zinc from zinc oxide (ZnO), zinc oxide nanoparticles (ZnONP) and zinc-methionine (Zn-Met) for 1 to 35 and 36 to 60 days, respectively...
February 23, 2018: Animal Reproduction Science
Ai Tanaka, Tadatoshi Ogura
The red panda (Ailurus fulgens) is an endangered semi-arboreal folivore with a specialized diet of bamboo leaves. Zoos worldwide maintain red pandas under a variety of housing environments and husbandry procedures that may affect the reproductive success and longevity of captive red pandas. The aims of the present study were to investigate how red pandas are kept in Japan and to obtain useful insights to increase their longevity by comparing the results from a questionnaire sent to Japanese zoos and those from a previous survey conducted in other countries...
March 7, 2018: Zoo Biology
Małgorzata Zakłos-Szyda, Nina Pawlik
Type 2 diabetes mellitus (T2D) is a chronic diet-related disease which due to many dangerous complications has become a prominent health problem of the world. The aim of the study was to explore the in vitro activity of Japanese quince (Chaenomeles japonica L., family Rosaceae, JQ) fruit polyphenolic extract as modulator of carbohydrates metabolism. The research was designed to investigate the effect of JQ polyphenolic extract on glucose metabolism in human hepatoma HepG2 cell line cultured under normal non-metabolically changed and hyperglycemic conditions...
March 1, 2018: Acta Biochimica Polonica
Yi Yang, Shihoko Kimura-Ohba, Jeffrey F Thompson, Victor M Salayandia, Melissa Cosse, Limor Raz, Fakhreya Y Jalal, Gary A Rosenberg
Vascular cognitive impairment is a major cause of dementia caused by chronic hypoxia, producing progressive damage to white matter (WM) secondary to blood-brain barrier (BBB) opening and vascular dysfunction. Tight junction proteins (TJPs), which maintain BBB integrity, are lost in acute ischemia. Although angiogenesis is critical for neurovascular remodeling, less is known about its role in chronic hypoxia. To study the impact of TJP degradation and angiogenesis during pathological progression of WM damage, we used the spontaneously hypertensive/stroke prone rats with unilateral carotid artery occlusion and Japanese permissive diet to model WM damage...
February 24, 2018: Neurobiology of Disease
Marta Brambilla, Paolo Gelosa, Laura Rossetti, Laura Castiglioni, Chiara Zara, Paola Canzano, Elena Tremoli, Luigi Sironi, Marina Camera
OBJECTIVE: Hypertension is a well known risk factor for thrombotic events such as myocardial infarction and stroke. Platelets express tissue factor (TF), the key activator of blood coagulation and thrombus formation. The number of TF-positive platelets increases in pathological conditions characterized by thrombotic complications but whether this occurs in hypertension is unknown. Here we investigated whether platelet TF expression is increased in a hypertensive status through a mechanism acting on megakaryocytes; the phenomenon could be modulated by antihypertensive drug as captopril; angiotensin (AngII) influences platelet TF expression...
March 6, 2018: Journal of Hypertension
Takako Miki, Masafumi Eguchi, Shamima Akter, Takeshi Kochi, Keisuke Kuwahara, Ikuko Kashino, Huanhuan Hu, Isamu Kabe, Norito Kawakami, Akiko Nanri, Tetsuya Mizoue
OBJECTIVE: We explored the association of 3-year adherence to a dietary pattern based on nutrients that may be related to mood with the development of depressive symptoms in Japanese employees. METHODS: Participants were 903 employees free from depressive symptoms at baseline and who attended the 3-year follow-up. Participants with depressive symptoms were defined as those with a score ≥16 on the Center for Epidemiologic Studies Depression Scale. Dietary patterns were derived using reduced-rank regression at baseline and at the 3-year follow-up survey using a validated, self-administered diet history questionnaire...
November 27, 2017: Nutrition
Masaya Iwamuro, Shiho Takashima, Toshihiro Inokuchi, Masahiro Takahara, Seiji Kawano, Sakiko Hiraoka, Yoshitaka Kondo, Takehiro Tanaka, Hiroyuki Okada
A 40-year-old Japanese man with abdominal pain was referred to our hospital. The patient had been diagnosed with Crohn's disease at the age of 21 years and had since then received treatment with mesalazine and had been advocated an elemental diet. About 30 months before his visit to the hospital, he had swallowed a patency capsule, the retention of which in the ileum was subsequently detected on abdominal ultrasonography. The patient was advised to undergo the evaluation of stenosis, but he refused further investigation at that time...
2018: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
Kaori Ikeda, Shimpei Fujimoto, Beth Morling, Shiho Ayano-Takahara, Shin-Ichi Harashima, Yukiko Uchida, Nobuya Inagaki
The aim of this study is to evaluate how culture moderates the behavioral and psychosocial predictors of diabetes self-care activities. Patients with type 2 diabetes were recruited in the outpatient department at two sites: Kyoto University hospital in Japan and the Christiana Care Health System in the United States. The data was collected by survey using questionnaires including questions on the frequency of self-care activities, behavioral and psychosocial predictors, and other background information from 149 Japanese patients and 48 American patients...
February 17, 2018: Journal of Diabetes Investigation
Katsuya Honda, Tetsuya Matoba, Yoshibumi Antoku, Jun-Ichiro Koga, Ikuyo Ichi, Kaku Nakano, Hiroyuki Tsutsui, Kensuke Egashira
OBJECTIVE: Plaque erosion is increasing its importance as one of the mechanisms of acute coronary syndromes in this statin era. However, the clinical efficacy of currently used lipid-lowering agents in the prevention of thrombotic complications associated with plaque erosion has not been clarified. Therefore, we examined the therapeutic effects of ezetimibe or rosuvastatin monotherapy on spontaneous atherothrombotic occlusion. APPROACH AND RESULTS: Femoral arteries of Japanese white rabbits, fed a high-cholesterol diet, were injured by balloon catheter, and then angiotensin II was continuously administrated...
February 15, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
Masayo Matsuzaki, Momoko Kusaka, Takashi Sugimoto, Mie Shiraishi, Risa Kobayashi, Sachi Watanabe, Megumi Haruna
OBJECTIVES: This report provides an experimental protocol for a study designed to verify the effects of yoga exercise and a nutritional guidance program during pregnancy on several key pregnancy and birth outcomes among Japanese women. DESIGN: This is a study protocol of a randomized controlled trial. SETTING/LOCATION: This intervention will be carried out in a university hospital in Tokyo. SUBJECTS: Healthy primiparous women will be recruited at 18-23 gestational weeks in the hospital...
February 14, 2018: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
Hitomi Suga, Keiko Asakura, Satomi Kobayashi, Masanori Nojima, Satoshi Sasaki
BACKGROUND: The intake of tryptophan, the precursor of serotonin, is assumed to affect serotonin availability and depression onset. Nevertheless, a definitive relationship between dietary tryptophan intake and depressive symptoms has not been established. We examined the association between tryptophan intake and depressive symptoms screened in a group of 4272 first-year female dietetic students and 3651 their mothers. METHODS: Dietary tryptophan intake during the preceding month was assessed with a validated, self-administered diet history questionnaire...
February 6, 2018: Journal of Affective Disorders
Keiko Yamada, Takashi Takeda
Premenstrual syndrome (PMS) is psychosomatic disorder that are limited to the late luteal phase in the menstrual cycle. PMS could impair athletic performance. To investigate associations between proportions of dietary plant and animal protein and PMS-related impairment of athletic performance, we surveyed 135 female athletes aged 18-23 years attending Kindai University. Participants belonged to authorized university clubs, all of which have high rankings in Japanese university sports. Participants completed self-administered questionnaires on diet history, demographics, and PMS-related impairment of athletic performance...
2018: Tohoku Journal of Experimental Medicine
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