4. 食物中补充维生素D不足 因天然食物中含维生素D少,即使纯母乳喂养,婴儿若户外活动少亦易患佝偻病。 5.疾病影响 胃肠道或肝胆疾病影响维生素D的吸收,如婴儿肝炎综合征、慢性腹泻等;肝肾严重损害可致维生素D羟化障碍,1,25-(OH)2D3生...
A vitamin D deficiency means you don't have enough of this vitamin in your body. You need vitamin D to grow and maintain your bones. You could be at risk for deficiency if you don't get enough sunlight on your skin, you have a disorder that reduces your body's ability to absorb it...
2.维生素D及钙、磷摄入不足 人体日常大约每日需400～800国际单位维生素D,但婴儿每天从人乳、牛乳、蛋黄、肝等食物中得到的维生素D很小超过100IU,人乳中含维生素D0.4～10.0UI/d1,牛乳含0.3～4.0IU/d1,各类水果和蔬菜中含量也极少,远不能满足正常需要,因此必须于生后第二个月起另外添加维生素D,若未及时添加则很...
AimsVitamin D deficiency is a highly prevalent, global phenomenon. The prevalence in heart failure (HF) patients and its effect on outcome are less clear. We evaluated vitamin D levels and vitamin D supplementation in patients with HF and its effect on mortality.Methods and results25-Hydroxyvitami...
Objective: To determine the prevalence of vitamin D deficiency in critically ill children, and to study its association with parathyroid response, severity of illness and clinical outcomes. Design: Prospective observational study. Setting: Medical Pediatric Intensive Care Unit of a tertiary care centre ...
Hence, although the production of osteoid, the protein matrix on which calcium is deposited, is normal or increased in vitamin D deficiency, the matrix is poorly calcified. This results in soft bones, the literal meaning of the term osteomalacia....
vitamin D deficiency raises the risk of sepsis and mortality. Although a number of puzzling factors, including renal excretion of vitamin D metabolites, comorbid conditions, pH, and nutritional supplementation, may all have an impact on the vitamin D status in critical illness, there is conflicting...
(p< 0.05). Exposure to Mono-ethyl phthalate (MEP), triclosan (TRS), and Mono-benzyl phthalate (MZP), either alone or in combination, was associated with reduced sleep duration and a greater risk of vitamin D deficiency. Individuals with low vitamin D levels exposed to TRS experienced ...
Severe vitamin D deficiency with a 25(OH)D concentration below <30 nmol/L (or 12 ng/ml) dramatically increases the risk of excess mortality, infections, and many other diseases, and should be avoided whenever possible. The data on a benefit for mortality and prevention of infections, ...
Vitamin D deficiency is associated with muscle weakness, pain, and atrophy. Serum vitamin D predicts muscle strength and age-related muscle changes. However, precise mechanisms by which vitamin D affects skeletal muscle are unclear. To address this question, this study characterizes the muscle phenoty...