نتایج جستجو برای: subchronic folic acid

تعداد نتایج: 748997  

2018
Gu Xiaochao Lu Xuebin Tian Jin Li Xiaoyun Zhou Bin Zheng Xujing Xu Jin

The three-dimensional electro-Fenton method was used in the folic acid wastewater pretreatment process. In this study, we researched the degradation of folic acid and the effects of different parameters such as the air sparging rate, current density, pH and reaction time on chemical oxygen demand (COD) removal in folic acid wastewater. A four-level and four-factor orthogonal test was designed a...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2000
M Arnadottir V Gudnason B Hultberg

BACKGROUND Hyperhomocysteinaemia is highly prevalent among haemodialysis patients and may contribute to their increased cardiovascular risk. Treatment with pharmacological doses of folic acid lowers the plasma homocysteine concentration in these patients. The purpose of the present study was to expand the knowledge about such treatment by testing the effects of stepwise increases in the dose of...

Journal: :Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit 2014
W Al-Darzi F Al-Mudares A Farah A Ali D Marzouk

Egypt has a high incidence of neural tube defects. Folic acid supplementation in the periconceptional period is known to lower the risk of such defects. This cross-sectional study aimed to measure the level of knowledge about periconceptional folic acid use among pregnant women attending for antenatal care at Ain Shams University Hospital, Cairo, Egypt in 2012. Questionnaires were filled throug...

2005
B. EWA SNAAR-JAGALSKA

Mutant Frigid A (fgdA) of Dictyostelium discoideum is defective in a functional Ga2 subunit of a G protein and is characterized by a complete blockade of the cyclic AMP-mediated sensory transduction steps, including cyclic AMP relay, chemotaxis and the cyclic GMP response. Folic acid-mediated transmembrane signal transduction was investigated in this mutant; the results show that: (1) cell surf...

Journal: :The Journal of biological chemistry 1950
J N WILLIAMS M L SUNDE W W CRAVENS C A ELVEHJEM

The influence of folic acid upon various enzyme systems both in vivo and in vitro has recently been investigated by workers in several laboratories. In this laboratory it has been demonstrated that folic acid depresses xanthine oxidase activity when added to the enzyme systems in vitro (1) or when fed to chicks (2). It has also been shown that n-amino acid oxidase activity is decreased by dieta...

Journal: :Reproductive toxicology 2006
Aiguo Ren Le Zhang Zhiwen Li Ling Hao Yihua Tian Zhu Li

BACKGROUND The prevalence of neural tube defects (NTDs) in northern China remains high after 10 years since periconceptional supplementation with folic acid has been known to be effective in reducing the risk of NTDs. OBJECTIVE The objectives of this study were to characterize folic acid awareness and use and to examine the association between folic acid supplementation with blood folate conc...

Journal: :Southern medical journal 1947
T D SPIES G GARCIA LOPEZ

BRANDENBURG, M.D.,* AND TOMAS ARAMBURU, M.D. I T HAS been established that pteroylglutamic acid (folic acid) stimulates the development of white blood cells, red blood cells and platelets in a variety of animal species and in persons who have certain types of macrocytic anemia. Our studies of folic acid have been concerned chiefly with the striking hematologic response which follows its adminis...

Journal: :The American Journal of Clinical Nutrition 2008

Journal: :American family physician 1993
Sjurdur F Olsen Vibeke Kildegaard Knudsen

Evidence from controlled trials suggests that ingestion of 0.4 mg of folic acid per day in the periconceptional period is effective in preventing neural tube defects (NTD). For this reason, most countries recommend that women planning pregnancy take folic acid supplements in the periconceptional period, and some countries even fortify stable foods with folic acid. Denmark exemplifies a country ...

Journal: :Cancer research 2011
Anna Ly Hanna Lee Jianmin Chen Karen K Y Sie Richard Renlund Alan Medline Kyoung-Jin Sohn Ruth Croxford Lilian U Thompson Young-In Kim

Intrauterine and early life exposure to folic acid has significantly increased in North America owing to folic acid fortification, widespread supplemental use, and periconceptional supplementation. We investigated the effects of maternal and postweaning folic acid supplementation on mammary tumor risk in the offspring. Female rats were placed on a control or folic acid-supplemented diet prior t...

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