OBJECTIVES Hyperhomocysteinemia has been considered as a potential risk factor for deep venous thrombosis (DVT) but it is still controversy. We aimed to evaluate the prevalence of hyperhomocysteinemia in patients with DVT. Our second objective was to document the prevalence of folate, Vitamin B6, and Vitamin B12 level in this patient population. METHODS Sixty patients with DVT aged from 23 to...

Escherichia coli KG980, a vitamin B6 auxotroph derived from E. coli K12, utilized the three unphosphorylated forms of vitamin B6, more or less effectively, for growth, but did not utilize the three phosphate forms at concentrations ranging from 10(-7) to 10(-5) M in the minimum medium of Davis and Mingioli. The bacterium, however, utilized the phosphate forms, although less effectively than the...

Vitamin B6 in its active form pyridoxal phosphate is an essential coenzyme of many diverse enzymes. Biochemistry, enzymology and genetics of de novo vitamin B6 biosynthesis have been primarily investigated in Escherichia coli. Database searches revealed that the key enzymes involved in ring closure of the aromatic pyridoxin ring (PdxA; PdxJ) are present mainly in genomes of bacteria constitutin...

OBJECTIVE To compare the effectiveness of ginger and vitamin B6 for treatment of nausea and vomiting in pregnancy. DESIGN Randomized double-blind controlled trial. SETTING Department of Obstetrics and Gynecology, Bangkok Metropolitan Administration Medical College and Vajira Hospital. MATERIAL AND METHOD One hundred and twenty-six pregnant women, with a gestational age of < or = 16 weeks ...

INTRODUCTION Premenstrual syndrome is one of the most common disorders in women, which includes a group of psychological and physical symptoms. The aim of this study was to examine the impact of combined use of calcium and vitamin B6 on premenstrual syndrome symptoms. METHODS This double blind randomized controlled was carried out on 76 students of Hamadan University of Medical Sciences. Stud...

Nitric oxide (NO), an active signaling molecule in plants, is involved in numerous physiological processes and adaptive responses to environmental stresses. Under high-salt conditions, plants accumulate NO quickly, and reorganize Na(+) and K(+) contents. However, the molecular connection between NO and ion homeostasis is largely unknown. Here, we report that NO lowers K(+) channel AKT1-mediated...

Many studies have suggested that folate-related one-carbon metabolism-related nutrients may play a role in certain cancer risks, but few studies have assessed their associations with the risk for nasopharyngeal carcinoma (NPC). In this study, we investigated the association between four folate-related one-carbon metabolism-related nutrients (folate, vitamin B6, vitamin B12 and methionine) and N...

BACKGROUND Gastroenteritis and respiratory tract infections are the most common childhood diseases. Despite the common use of vitamin B6 to control vomiting in children with gastroenteritis, no study has been performed in this field. This study aimed to assess the value of vitamin B6 in the prevention of vomiting in patients with mild to moderate gastroenteritis. METHODOLOGY This study was a ...

objective(s) carbamazepine (cbz) is an antiepileptic drug that is used widely for the treatment of epileptic seizures. neural tube defects (ntds), growth retardation, and nail hypoplasia are the most common features of teratogenic effects of this drug. the purpose of this study was to examine the effect of vitamin b6 on the developmental toxicity of cbz on mice. materials and methods sixty balb...

BACKGROUND Evidence from experimental and epidemiologic studies suggests that vitamin B6 may reduce the risk of breast cancer. METHODS We examined the association of prediagnostic plasma concentrations of pyridoxal-5'-phosphate (PLP), an active form of vitamin B6, with postmenopausal breast cancer risk in a case-control study nested in the multiethnic cohort in Hawaii and Southern California,...