نتایج جستجو برای: vitamin b9

تعداد نتایج: 96703  

Journal: :Angewandte Chemie 2015
John A Christie Ryan P Forrest Steven A Corcelli Natalie A Wasio Rebecca C Quardokus Ryan Brown S Alex Kandel Yuhui Lu Craig S Lent Kenneth W Henderson

The preparation of 7-Fc(+) -8-Fc-7,8-nido-[C2 B9 H10 ](-) (Fc(+) FcC2 B9 (-) ) demonstrates the successful incorporation of a carborane cage as an internal counteranion bridging between ferrocene and ferrocenium units. This neutral mixed-valence Fe(II) /Fe(III) complex overcomes the proximal electronic bias imposed by external counterions, a practical limitation in the use of molecular switches...

Journal: :Clinical chemistry and laboratory medicine 2012
Giuseppe Lippi Mario Plebani

Homocysteine is a sulfur-containing amino acid, which is synthesized from the precursor methionine through a multi-step process, and then reconverted to methionine or catabolyzed into cysteine. The presence of vitamin B9 (folic acid), vitamin B6 (pyridoxine) and vitamin B12 (cobalamin) is essential in homocysteine metabolism, wherein deficiency of one or more of these nutrients is associated wi...

Journal: :Journal of human nutrition and dietetics : the official journal of the British Dietetic Association 2017
J-Y Lee C Shin I Baik

BACKGROUND There are few studies on the association between nutrient intake and telomere length, which may reflect cumulative oxidative stress and indicate biological ageing. In the present study, we evaluated longitudinal associations between the consumption of micronutrients, including antioxidant nutrients and B vitamins involved in one-carbon transfer pathways, and leukocyte telomere length...

2015
Elisa Buschini Antonio M Fea Carlo A Lavia Marco Nassisi Giulia Pignata Marta Zola Federico M Grignolo

Dry age-related macular degeneration (AMD), also called geographic atrophy, is characterized by the atrophy of outer retinal layers and retinal pigment epithelium (RPE) cells. Dry AMD accounts for 80% of all intermediate and advanced forms of the disease. Although vision loss is mainly due to the neovascular form (75%), dry AMD remains a challenge for ophthalmologists because of the lack of eff...

Journal: :Organometallics 2012
Alexander M Spokoyny Calvin D Lewis Georgiy Teverovskiy Stephen L Buchwald

We have prepared the first examples of B9-connected trivalent aryl and alkyl phosphinoborane species via Pd-catalyzed phosphination of 9-iodo-meta-carborane. Our studies highlight the unique electronic features of the B9-connected meta-carboranyl moiety as compared to its C1-based analogue. This work suggests that the B9-functionalized meta-carboranyl substituent in these ligands exhibits more ...

2017
Sharea Ijaz Joni Jackson Helen Thorley Katie Porter Clare Fleming Alison Richards Adrian Bonner Jelena Savović

BACKGROUND A significant proportion of homeless people drink alcohol excessively and this can lead to malnutrition and consequent medical problems. The aim of this review was to assess the evidence on the range of nutritional deficiencies in the homeless problem-drinking populations. METHODS We conducted a comprehensive search of nine scientific literature databases and 13 grey literature sou...

2015
Liqing Zhao Guanhui Bao Beibei Geng Jiangning Song Yin Li

Lysinibacillus fusiformis SW-B9 was the first reported strain in L. fusiformis showing effective biotransformation of isoeugenol to vanillin. Here, we report the annotated genome of strain SW-B9, which has special pathways for producing vanillin. The genome will provide a genetic basis for better understanding the physiology of this species.

Journal: :Nutrition research reviews 2013
Georgina Sanahuja Gemma Farré Judit Berman Uxue Zorrilla-López Richard M Twyman Teresa Capell Paul Christou Changfu Zhu

The biofortification of staple crops with vitamins is an attractive strategy to increase the nutritional quality of human food, particularly in areas where the population subsists on a cereal-based diet. Unlike other approaches, biofortification is sustainable and does not require anything more than a standard food-distribution infrastructure. The health-promoting effects of vitamins depend on ...

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