Vicious cycle of vitamin B insufficiency and heart failure in cardiology outpatients.

Heart failure is a major manifestation of vitamin B deficiency; beriberi. We have previously reported that even vitamin B insufficiency, milder than deficiency, is a risk for heart failure in the institutionalized elderly. Then in this cross-sectional study, sixty-eight cardiology outpatients were evaluated for their whole blood vitamin B and plasma brain natriuretic peptide (BNP) concentrations, a sensitive marker of heart failure, as well as their dietary intake.

High prevalence of vitamin B-12 deficiency before and early after gastrectomy in patients with gastric cancer.

Background And Objectives: Gastrectomy causes vitamin B-12 deficiency since vitamin B-12 requires gastric acid and intrinsic factor for its absorption. Vitamin B-12 deficiency is considered to develop years after gastrectomy because of large hepatic storage. However, most gastric cancer develops after long-standing atrophic gastritis with vitamin B-12 malabsorption.

Vitamin D deficiency as the risk of respiratory tract infections in the institutionalized elderly: A prospective 1-year cohort study.

Background & Aims: Respiratory tract infections (RTIs) are one of the major causes of morbidity and mortality in the elderly. Since vitamin D is known to play important roles in immunity, and its deficiency has been reported to be prevalent in the elderly, we have studied the relationship between serum 25-hydroxyvitamin D [25(OH)D] level, which is the most reliable marker for vitamin D status, and the incidence of RTIs in the institutionalized elderly by a prospective observational study.

Methods: From 208 Japanese subjects aged 60 and older fulfilling the inclusion criteria, 148 subjects remained after propensity score matching.

Insufficiency of B vitamins with its possible clinical implications.

Vitamin deficiency causes classical deficiency diseases such as beriberi and rickets. Vitamin insufficiency, which is milder than deficiency, is a risk for various chronic diseases, but its significance has not been recognized in Japan. Vitamin D insufficiency is quite common in Japan, and a serious risk for osteoporotic fracture through its unbeneficial effect on bone and muscle.

Gastric and Jejunal Enteral Feeding Differently Affect Vitamin B Status in Subjects with Severe Motor and Intellectual Disabilities.

The absorption of vitamin B is a complex process involving gastric acid and intrinsic factor as the indispensable components. In this study, we have investigated the effects of the administration site in enteral feeding on vitamin B status in subjects with severe motor and intellectual disabilities (SMID). This is a cross-sectional study conducted from January to June 2016.

Diversity of Gut Microbiota Affecting Serum Level of Undercarboxylated Osteocalcin in Patients with Crohn's Disease.

Several reports have indicated a possible link between decreasing plasma levels of vitamin K and bone mineral density. It has been suggested that intestinal bacteria contribute to maintenance of vitamin K. Several factors are involved in the reduction of vitamin K in patients with Crohn's disease (CD).

Possible involvement of thiamine insufficiency in heart failure in the institutionalized elderly.

Heart failure is a major manifestation of thiamine deficiency; beriberi. Even thiamine insufficiency, milder than deficiency, may be associated with increased heart failure risk. In this cross-sectional study, the relationship between thiamine insufficiency and heart failure was investigated in the Japanese institutionalized elderly from April to November 2017.

Relationship between Homocysteine, Folate, Vitamin B and Physical Performance in the Institutionalized Elderly.

Hyperhomocysteinemia causes various diseases including cardiovascular disease, osteoporotic fracture and dementia. Although there have been reports that hyperhomocysteinemia decreases physical performance, findings are inconsistent on the association of homocysteine, folate, vitamin B and physical performance. Considering that lower physical performance increases the risk of fall and fracture in the elderly, the effect of nutritional status on physical function must be clarified.

High prevalence of vitamin B-12 insufficiency in patients with Crohn's disease.

Background And Objectives: In Crohn's disease (CD), belonging to inflammatory bowel disease, the small intestine is involved in most cases. Most frequently affected is the distal ileum, where vitamin B-12 is specifically absorbed. Therefore, malabsorption of vitamin B-12 is quite likely to occur in patients with CD.

Comparison of lower leg muscle strength and grip strength for diagnosing slower gait speed in the elderly.

Objectives: Sarcopenia, decreased muscle volume and muscle weakness in the elderly is a serious risk of various adverse outcomes. Current diagnostic procedure for sarcopenia includes gait speed, grip strength, and percentage of skeletal muscle volume. However, lower leg muscle strength decreases much faster than grasp power, and we have evaluated the usefulness of its measurement using a recently developed instrument (Locomoscan).

Associations between serum 25-hydroxyvitamin D level and skeletal muscle mass and lower limb muscle strength in Japanese middle-aged subjects.

Objectives: One of the important risk factors of falling is decreased muscle mass and muscle strength. Recently, there has been an increasing concern on the role of vitamin D in muscle strength and physical activity. Aim of our study is to examine the relationships between vitamin D status and muscle mass and muscle strength in middle-aged healthy adults.