Показаны сообщения с ярлыком Витамин D. Показать все сообщения
Показаны сообщения с ярлыком Витамин D. Показать все сообщения

четверг, 10 января 2013 г.

Эффективность сочетания холекальциферола с флуоксетином

Objective: To compare the therapeutic effects of vitamin D3 plus fluoxetine and fluoxetine alone in patients with major depressive disorder.
Methods: In the present double-blind, randomized, placebo-controlled trial, 42 patients with a diagnosis of major depressive disorder based on DSM-IV criteria were randomly assigned into two groups to receive daily either 1500 IU vitamin D3 plus 20 mg fluoxetine or fluoxetine alone for 8 weeks. Depression severity was assessed at 2-week intervals using the 24-item Hamilton Depression Rating Scale (HDRS) as a primary outcome measure and the 21-item Beck Depression Inventory (BDI) as a secondary outcome measure. Serum 25(OH) vitamin D was measured at baseline and after intervention.
Results: Forty patients completed the trial. A two-way repeated-measures analysis of variance showed that depression severity based on HDRS and BDI decreased significantly after intervention, with a significant difference between the two groups. The vitamin D + fluoxetine combination was significantly better than fluoxetine alone from the fourth week of treatment.
Conclusions: In the present 8-week trial, the vitamin D + fluoxetine combination was superior to fluoxetine alone in controlling depressive symptoms.
 Therapeutic effects of vitamin D as adjunctive therapy to fluoxetine in patients with major depressive disorder

пятница, 2 ноября 2012 г.

Употребление витамина D3 не проявило эффективности в предупреждении депрессии у людей с низким уровнем 25-гидроксивитамина D

Aims
To compare depressive symptoms in participants with low and high serum 25-hydroxyvitamin D (25(OH)D) levels and to examine whether supplementation with vitamin D3 would improve symptoms in those with low serum 25(OH)D levels.
Method
Participants with low 25(OH)D levels were randomised to either placebo or 40 000 IU vitamin D3 per week for 6 months. Individuals with high serum 25(OH)D levels were used as nested controls. Depressive symptoms were evaluated with the Beck Depression Inventory, Hospital Anxiety and Depression Scale, Seasonal Pattern Assessment Scale and Montgomery–Åsberg Depression Rating Scale. The study was registered at ClinicalTrials.gov(NCT00960232).
Results
Participants with low 25(OH)D levels (n = 230) at baseline were more depressed (P < 0.05) than participants with high 25(OH)D levels (n = 114). In the intervention study no significant effect of high-dose vitamin D was found on depressive symptom scores when compared with placebo.
Conclusions
Low levels of serum 25(OH)D are associated with depressive symptoms, but no effect was found with vitamin D supplementation.
 Effect of vitamin D supplement on depression scores in people with low levels of serum 25-hydroxyvitamin D: nested case–control study and randomised clinical trial

четверг, 7 июня 2012 г.

Литий-индуцированный гиперпаратиреоз

Approximately 15% to 20% of patients receiving long-term lithium treatment show elevated calcium levels, although only a few of these patients also have significant elevations of PTH levels and clinical symptoms of hyperparathyroidism. Interestingly, lithium-associated clinical hyperparathyroidism is almost always caused by a single parathyroid adenoma rather than 4-gland hyperplasia.
...
Neuropsychiatric symptoms associated with primary hyperparathyroidism include anxiety as well as cognitive and psychotic presentations. However, the most common presentation is depression with associated apathy. In a prospective study of 34 patients with hyperparathyroidism, Velasco and colleagues6 found that approximately one-third of participants had no psychiatric symptoms, one-third had affective symptoms (with or without paranoia), and one-third had cognitive impairment. Affective symptoms were most common in patients with modest elevations in electrolyte levels, while cognitive deficits were more often related to higher calcium concentrations.
 Hyperparathyroidism Resulting From Lithium Treatment Remains Underrecognized

четверг, 5 апреля 2012 г.

Случай отравления витаминно-минеральным комплексом

When she elaborated that the experiments were taking plance in a hidden hospital annex on the other side of the picture on the wall of her room, and that her dear friend Oliver Sacks was overseeing them, her delusional state was exposed. Her lab tests showed shockingly high levels of calcium, up to 19.0 mg/dL (the normal range is 9.0 to 10.5) and vitamin D levels of 127 mg/dL (the normal range is 15 to 42). She was vitamin toxic and had likely been so for the last several months. As she weakened, she ate and drank less, but she carefully took her pills. These combined to send her vitamin levels spiraling up to life-threatening levels. Low potassium from the diuretic and not eating only worsened the toxicity. Since she hadn't seen her internist in over a year, her vitamin levels had remained untested. And when he checked them, her imperious manner and world-class medical reputation discouraged him from overriding her irrational refusal of care.
In retrospect, her decline was classic for hypercalcemia, not only the confusion progressing through delirium to stupor and toward coma, but also the weakness I had noticed when she coughed. Hypercalcemia contributed to the drooping eyelids, the nasal voice, the falls, and at the end, complete disability. Her high calcium had passed unnoticed during the first hospitalization at Christmas. Likely the doctors found confusion, weakness, and falls unremarkable in an 84-year-old and they did not look too hard for specific causes.
 Almost Losing My Mother: From Doctor to Patient and Back Again

вторник, 14 февраля 2012 г.

Новое исследование связи гиповитаминоза D с симптомами депрессии

February 13, 2012 — A large cross-sectional study of adults suggests a link between low vitamin D levels and depressive symptoms, particularly in individuals with a history of depression.
Because the relationship between low vitamin D levels and depression was stronger in those with a prior history of depression, "it may be more of a marker for relapse than for new-onset," senior investigator E. Sherwood Brown, MD, PhD, head of the psychoneuroendocrine research program at the University of Texas Southwestern Medical Center, Dallas, toldMedscape Medical News.
More Evidence Links Low Vitamin D to Depression 

четверг, 28 апреля 2011 г.

Высокие дозы витамина D3 не влияют на риск возникновения депрессии

Background

Epidemiological evidence supports a relationship between vitamin D and mental well-being, although evidence from large-scale placebo-controlled intervention trials is lacking.

Aims

To examine if vitamin D supplementation has a beneficial effect on mood in community-dwelling older women; if a single annual large dose of vitamin D has a role in the prevention of depressive symptoms; and if there is an association between serum 25-hydroxyvitamin D levels and mental health.

Method

A double-blind, randomised, placebo-controlled trial of women aged 70 or older (the Vital D Study: ISRCTN83409867 and ACTR12605000658617). Participants were randomly assigned to receive 500 000 IU vitamin D3 (cholecalciferol) orally or placebo every autumn/winter for 3–5 consecutive years. The tools utilised at various time points were the General Health Questionnaire, the 12-item Short Form Health Survey, the Patient Global Impression–Improvement scale and the WHO Well-Being Index. Serum 25-hydroxyvitamin D levels were measured in a subset of 102 participants.

Results

In this non-clinical population, no significant differences between the vitamin D and placebo groups were detected in any of the measured outcomes of mental health. Serum 25-hydroxyvitamin D levels in the vitamin D group were 41% higher than the placebo group 12 months following their annual dose. Despite this difference, scores from the questionnaires did not differ. Furthermore, there was no interaction between those on antidepressant/anxiety medication at baseline and the treatment groups.

Conclusions

The lack of improvement in indices of mental well-being in the vitamin D group does not support the hypothesis that an annual high dose of vitamin D3 is a practical intervention to prevent depressive symptoms in older community-dwelling women.

Annual high-dose vitamin D3 and mental well-being: randomised controlled trial

вторник, 7 сентября 2010 г.

Риск шизофрении и уровень витамина D у младенцев

Both low and high concentrations of neonatal vitamin D are associated with increased risk of schizophrenia, and it is feasible that this exposure could contribute to a sizeable proportion of cases in Denmark. In light of the substantial public health implications of this finding, there is an urgent need to further explore the effect of vitamin D status on brain development and later mental health.

Neonatal Vitamin D Status and Risk of Schizophrenia

четверг, 22 июля 2010 г.

Депрессии, витамин D и сердечно-сосудистые заболевания

Background Depression is associated with cardiovascular (CV) disease, and it has been hypothesized that vitamin (vit)D deficiency may be associated with depression and a contributing factor to excess CV events. Therefore, we evaluated whether there is an association between vitD and incident depression among a CV population.
Methods Patients (N = 7,358) ≥50 years of age, with a CV diagnosis (coronary artery disease, myocardial infarction, congestive heart failure, cerebrovascular accident, transient ischemic accident, atrial fibrillation, or peripheral vascular disease), no prior depression diagnosis, and a measured vitD level were studied. Vitamin D (ng/mL) was stratified into 4 categories: >50 (optimal [O] n = 367), 31 to 50 (normal [N] n = 2,264), 16 to 30 (low [L] n = 3,402), and ≥15 (very low [VL] n = 1,325). Depression was defined by International Classification of Diseases, Ninth Edition, codes: 296.2 to 296.36, 311. VitD categories were evaluated by Cox hazard regression with adjustment by standard CV risk factors.
Results Age averaged 73.1 ± 10.2 years, and 58.8% were female. When compared to O, VL, L, and N were associated with depression (adjusted: VL, hazard ratio [HR] 2.70 [1.35–5.40], P = .005; L, HR 2.15 [1.10–4.21], P = .03; N, HR 1.95 [0.99–3.87], P = .06). This association remained even after adjustment by parathyroid hormone levels. Parathyroid hormone was significantly associated with depression, however, became nonsignificant after adjustment by vitD. Winter (December-February) enhanced this association. Significant associations remained when stratifications were made by age (<65, ≥65), sex, and diabetes, although the associations among those age ≥65 and male sex were enhanced.
Conclusion Among a CV population ≥50 years with no history of depression, vitD levels were shown to be associated with incident depression after vitD draw. This study strengthens the hypothesis of the association between vitD and depression.

Association of Vitamin D Levels with Incident Depression among a General Cardiovascular Population