Pantothenic acid

泛酸
  • 文章类型: Review
    背景:导致钠依赖性多维生素转运体(SMVT)缺陷的SLC5A6中的双等位基因致病变体最近被描述为一种维生素反应性先天代谢错误,模仿生物糖苷酶缺乏症。据我们所知,到目前为止,只有16名患者被报道患有各种临床表型,如神经病变和其他神经障碍,胃肠道功能障碍和未能茁壮成长,骨质减少,免疫缺陷,代谢性酸中毒,低血糖,和最近严重的心脏症状。
    方法:我们描述了一个5个月大的女孩在感染性疾病过程中出现两次代谢失代偿和大量心力衰竭的反复发作的病例报告。我们比较临床,生物,从Pubmed数据库收集的先前文献(关键词:钠依赖性多维生素转运蛋白(SMVT),SMVT缺陷/紊乱/缺乏,SLC5A6基因/突变)。
    结果:我们强调了这种疾病危及生命的表现,精神运动发育的停滞,严重和持续的低丙种球蛋白血症,此外,早期补充维生素(生物素每天15毫克,泛酸每天100毫克)的成功临床反应。代谢评估显示尿3-羟基异戊酸(3-HIA)的持续增加,如文献中先前报道的这种疾病。
    结论:SMVT缺乏是一种维生素反应性先天代谢错误,可导致多种症状。尿3-羟基异戊酸的排泄增加和分离可能提示,在没有显著降低的生物素酶活性的情况下,SMVT缺乏。在等待SLC5A6测序结果的同时,应立即补充高剂量的生物素和泛酸,因为这种情况可能危及生命。
    BACKGROUND: Biallelic pathogenic variants in SLC5A6 resulting in sodium-dependent multivitamin transporter (SMVT) defect have recently been described as a vitamin-responsive inborn error of metabolism mimicking biotinidase deficiency. To our knowledge, only 16 patients have been reported so far with various clinical phenotypes such as neuropathy and other neurologic impairments, gastro-intestinal dysfunction and failure to thrive, osteopenia, immunodeficiency, metabolic acidosis, hypoglycemia, and recently severe cardiac symptoms.
    METHODS: We describe a case report of a 5-month-old girl presenting two recurrent episodes of metabolic decompensation and massive cardiac failure in the course of an infectious disease. We compare clinical, biological, and genetic findings of this patient to previous literature collected from Pubmed database (keywords: Sodium-dependent multivitamin transporter (SMVT), SMVT defect/disorder/deficiency, SLC5A6 gene/mutation).
    RESULTS: We highlight the life-threatening presentation of this disease, the stagnation of psychomotor development, the severe and persistent hypogammaglobulinemia, and additionally, the successful clinical response on early vitamin supplementation (biotin 15 mg a day and pantothenic acid 100 mg a day). Metabolic assessment showed a persistent increase of urinary 3-hydroxyisovaleric acid (3-HIA) as previously reported in this disease in literature.
    CONCLUSIONS: SMVT deficiency is a vitamin-responsive inborn error of metabolism that can lead to a wide range of symptoms. Increased and isolated excretion of urinary 3-hydroxyisovaleric acid may suggest, in the absence of markedly reduced biotinidase activity, a SMVT deficiency. Prompt supplementation with high doses of biotin and pantothenic acid should be initiated while awaiting results of SLC5A6 sequencing as this condition may be life-threatening.
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  • 文章类型: Journal Article
    泛酸,也被称为维生素B5,是一种水溶性维生素,其作为辅酶A(CoA)和酰基载体蛋白(ACP)的组分在体内具有重要功能。它广泛分布于动植物源食品中。泛酸的营养缺乏是罕见的,毒性可以忽略不计。北欧国家泛酸摄入量的信息有限,北欧和波罗的海人群的生物标志物数据缺失。由于缺乏数据,自2012年以来,北欧营养建议(NNR)中未给出泛酸的饮食参考值(DRV).此范围审查的目的是检查与更新NR2023的DRV相关的最新证据。检索了自2012年以来有关泛酸与北欧和波罗的海国家健康相关问题关联的科学文献。没有发现与泛酸有关的健康问题。
    Pantothenic acid, also referred to as vitamin B5, is a water-soluble vitamin that has essential functions in the body as a component of coenzyme A (CoA) and acyl carrier protein (ACP). It is widely distributed in animal and plant-source foods. Nutritional deficiency of pantothenic acid is rare and toxicity negligible. Information on pantothenic acid intakes in the Nordic countries is limited and biomarker data from Nordic and Baltic populations is missing. Due to a lack of data, no dietary reference values (DRVs) were given for pantothenic acid in the Nordic Nutrition Recommendations (NNR) since 2012. The aim of this scoping review was to examine recent evidence relevant for updating the DRVs for NNR2023. Scientific literature since 2012 on associations of pantothenic acid with health-related issues in Nordic and Baltic countries was searched. No health concerns related to pantothenic acid were identified.
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  • 文章类型: Journal Article
    Ocoxin口服溶液(OOS)是一种营养补充剂,其配方包括几种植物提取物和具有抗肿瘤特性的天然产物。本文综述了OOS不同成分的抗肿瘤作用。回顾了该制剂在不同临床前模型和临床试验中的作用。特别注意这种营养补充剂的作用机制和生活质量改善特性。分子上,它的作用方式包括对肿瘤生物学的双重边缘作用,这涉及伴随着细胞死亡诱导的细胞增殖减慢。鉴于OOS的安全性和良好的耐受性,以及它对其他标准护理药物的抗肿瘤作用的增强,OOS可以与常规疗法组合用于肿瘤学诊所。
    Ocoxin Oral Solution (OOS) is a nutritional supplement whose formulation includes several plant extracts and natural products with demonstrated antitumoral properties. This review summarizes the antitumoral action of the different constituents of OOS. The action of this formulation on different preclinical models as well as clinical trials is reviewed, paying special attention to the mechanism of action and quality of life improvement properties of this nutritional supplement. Molecularly, its mode of action includes a double edge role on tumor biology, that involves a slowdown in cell proliferation accompanied by cell death induction. Given the safety and good tolerability of OOS, and its potentiation of the antitumoral effect of other standard of care drugs, OOS may be used in the oncology clinic in combination with conventional therapies.
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  • 文章类型: Journal Article
    放射性皮炎是放射治疗的常见后遗症;高达95%的患者会出现中度至重度皮肤反应。目前尚无用于治疗急性辐射引起的皮肤毒性的标准标准。因此,必须对可用的管理选项有更多的了解,以使临床医生在管理放射肿瘤患者时做出明智的决定。这篇文献综述讨论了已研究用于治疗急性放射性皮炎的局部药物,审查他们的行动机制,并提出了一种用于临床医生管理放射性皮炎患者的治疗算法。
    Radiation dermatitis is a common sequela of radiation therapy; up to 95% of patients will develop moderate-to-severe skin reactions. No criterion standard currently exists for the treatment of acute radiation-induced skin toxicity. It is therefore imperative to develop a greater understanding of management options available to allow clinicians to make informed decisions when managing radiation oncology patients. This literature review discusses the topical agents that have been studied for the treatment of acute radiation dermatitis, reviews their mechanisms of action, and presents a treatment algorithm for clinicians managing patients experiencing radiation dermatitis.
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  • 文章类型: Journal Article
    BACKGROUND:  Analysis of data derived from homeopathic pathogenetic trials (HPTs, homeopathic drug provings) has been a challenge. Most parts of the homeopathic pharmacopeia were sourced from Hahnemann\'s Materia Medica Pura (1825-1833), TF Allen\'s Encyclopedia (1874) and Constantine Hering\'s Materia Medica (1879-1891), well before randomised controlled trials were in use. As a result, such studies and their outcomes harbour a large risk of inclusion of unreliable symptoms.
    OBJECTIVE: The main purpose of this article is to introduce Quantitative and Qualitative Pathogenetic Indices to improve the method of analysis of symptoms.
    METHODS:  The data from HPTs for human immunodeficiency virus nosode, hepatitis C nosode, capsaicin alkaloids (capsaicin and dihydrocapsaicin) and hydroquinone (HQ) were extracted and analysed in terms of novel Qualitative and Quantitative Pathogenetic Indices. Taken into the consideration were the qualitative aspect of a symptom (i.e. its intensity), and the quantitative aspect by calculating the number of symptoms per volunteer per day. The pathogenetic effects and data evaluation indices were calculated for each HPT. A comparison was made of symptoms of verum versus placebo provers in terms of their quantity and quality.
    RESULTS:  Four HPTs involving 81 volunteers (56 on verum and 25 on placebo) generated 555 symptoms or pathogenetic effects (excluding run-in phase symptoms), of which 448 (81%) were reported by volunteers who were in the verum arm, and 107 (19%) were reported by volunteers on placebo. The overall mean incidence of pathogenetic effects for the four HPTs was thus 8 per verum prover and 4.28 per placebo prover. The corresponding mean Quantitative Pathogenetic Index was 0.23 symptoms per volunteer per day for the verum arm and 0.12 symptoms per volunteer per day for the placebo arm. The overall mean incidence of pathogenetic effects in the run-in phase was less. The overall mean Qualitative Pathogenetic Index (number of symptoms, of a given intensity, per volunteer per day) for the verum arm was 0.09 versus 0.05 for the placebo arm.
    CONCLUSIONS:  The symptoms exhibited by volunteers in the verum arm were more numerous and more intense than those in the placebo arm. An innovative and logical method of reporting of symptoms and analysis has been introduced by the use of these pathogenetic indices, which can be used in future as measurement tools for analysis of data from HPTs.
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  • 文章类型: Journal Article
    Surveys of patients with multiple sclerosis report that most are interested in modifying their diet and using supplements to potentially reduce the severity and symptoms of the disease. This review provides an updated overview of the current state of evidence for the role that vitamins and dietary supplements play in multiple sclerosis and its animal models, with an emphasis on recent studies, and addresses biological plausibility and safety issues.
    Several vitamins and dietary supplements have been recently explored both in animal models and by patients with multiple sclerosis. Most human trials have been small or nonblinded, limiting their generalizability. Biotin and vitamin D are currently being tested in large randomized clinical trials. Smaller trials are ongoing or planned for other supplements such as lipoic acid and probiotics. The results of these studies may help guide clinical recommendations.
    At the present time, the only vitamin with sufficient evidence to support routine supplementation for patients with multiple sclerosis is vitamin D. Vitamin deficiencies should be avoided. It is important for clinicians to know which supplements their patients are taking and to educate patients on any known efficacy data, along with any potential medication interactions and adverse effects of individual supplements. Given that dietary supplements and vitamins are not subject to the same regulatory oversight as prescription pharmaceuticals in the United States, it is recommended that vitamins and supplements be purchased from reputable manufacturers with the United States Pharmacopeia designation.
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  • 文章类型: Journal Article
    B族维生素包括一组八种水溶性维生素,它们是必需的,在细胞功能中密切相关的角色,在大量的分解代谢和合成代谢酶反应中充当辅酶。它们的集体效应对大脑功能的许多方面特别普遍,包括能源生产,DNA/RNA合成/修复,基因组和非基因组甲基化,以及许多神经化学物质和信号分子的合成。然而,人类流行病学和对照试验调查,以及由此产生的科学评论,几乎完全集中在维生素(B9/B12/B6)的小子集上,这些维生素是参与同型半胱氨酸代谢的最突出(但不是唯一的)B族维生素。对其他B族维生素的关注很少。这篇综述描述了八种B族维生素和法警的密切相关的功能,表明该组微量营养素的所有成员的足够水平对于最佳的生理和神经功能至关重要。此外,人类研究的证据清楚地表明,发达国家的人口中有很大一部分患有一种或多种维生素的缺乏或不足,而且,在没有最佳饮食的情况下,服用整个B族维生素,而不是一个小子集,剂量大大超过目前政府的建议,将是保持大脑健康的合理方法。
    The B-vitamins comprise a group of eight water soluble vitamins that perform essential, closely inter-related roles in cellular functioning, acting as co-enzymes in a vast array of catabolic and anabolic enzymatic reactions. Their collective effects are particularly prevalent to numerous aspects of brain function, including energy production, DNA/RNA synthesis/repair, genomic and non-genomic methylation, and the synthesis of numerous neurochemicals and signaling molecules. However, human epidemiological and controlled trial investigations, and the resultant scientific commentary, have focused almost exclusively on the small sub-set of vitamins (B9/B12/B6) that are the most prominent (but not the exclusive) B-vitamins involved in homocysteine metabolism. Scant regard has been paid to the other B vitamins. This review describes the closely inter-related functions of the eight B-vitamins and marshals evidence suggesting that adequate levels of all members of this group of micronutrients are essential for optimal physiological and neurological functioning. Furthermore, evidence from human research clearly shows both that a significant proportion of the populations of developed countries suffer from deficiencies or insufficiencies in one or more of this group of vitamins, and that, in the absence of an optimal diet, administration of the entire B-vitamin group, rather than a small sub-set, at doses greatly in excess of the current governmental recommendations, would be a rational approach for preserving brain health.
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  • 文章类型: Journal Article
    Pantothenic acid (PA) is essential in metabolism due to its incorporation into coenzyme A and acyl-carrier-protein. In addition to fodder, ruminants have another PA source, as the micro-organisms in the rumen can synthesize PA. However, it has not been evaluated whether synthesis can meet the PA requirements of dairy cows. Furthermore, synthesis appears to be influenced by forage to concentrate ratio in the diet. It is not yet clear, if oral PA supplementations can increase the duodenal PA flow in dairy cows, but it has been reported that about 80% of supplemented PA disappears between the mouth and duodenum. However, supplementation of PA can increase blood PA levels. To give a general view of the actual state of research, the present review discusses the current knowledge, identifies gaps in knowledge and presents areas for future research.
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  • 文章类型: Journal Article
    OBJECTIVE: To review the literature on nipple pain and to delineate effective strategies for the prevention and treatment of nipple pain in breastfeeding mothers.
    METHODS: Computerized searches on MEDLINE, Pre-MEDLINE, CINAHL, and the Cochrane Library.
    METHODS: Articles from indexed journals relevant to the objective were reviewed from January 1983 to April 2004. Preference was given to research-based studies in English.
    METHODS: Data were extracted and organized under two headings: prevention of nipple pain or trauma and treatment of nipple pain or trauma. The Critical Appraisal Form by J. Briggs was used to extract the data from research-based articles.
    RESULTS: The health benefits of breastfeeding for mother and infant are well documented; however, nipple pain is a common reason reported by women for the early termination of breastfeeding. Several studies have compared various treatments for either the prevention of or treatment for nipple pain. These treatments include warm water compresses, tea bag compresses, heat, application of expressed mother\'s milk, lanolin, vitamin A, collagenase, dexpanthenol, hydrogel therapy, glycerin gel therapy, moist occlusive dressing, education regarding proper latch-on and positioning, and no treatment.
    CONCLUSIONS: No one topical agent showed superior results in the relief of nipple discomfort. The most important factor in decreasing the incidence of nipple pain is the provision of education in relation to proper breastfeeding technique and latch-on as well as anticipatory guidance regarding the high incidence of early postpartum nipple pain.
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    文章类型: Journal Article
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