Results 41 to 50 of about 688,280 (189)

Retinopathy in non diabetics, diabetic retinopathy and oxidative stress:a new phenotype in Central Africa? [PDF]

International Journal of Ophthalmology, 2014
AIM: To evaluate the rates of retinopathy without diabetes and diabetic retinopathy (DR), associated with some markers of oxidative stress, antioxidants and cardiometabolic risk factors.METHODS: We determined the prevalence of DR in 150 type 2 diabetes ...
Benjamin Longo-Mbenza, Moise Mvitu Muaka, Wayiza Masamba, Lucien Muizila Kini, Igor Longo Phemba, Dalida Kibokela Ndembe, Doris Tulomba Mona   +6 more
doaj   +1 more source

Calculation of the Sun exposure time for the synthesis of vitamin D in Urcuquí, Ecuador [PDF]

Proceeding of Abstracts of IWBBIO, Francisco Ortu\~no Guzm\'an, Ignacio Rojas Ru\'iz (Comp.), ISBN: 978-84-16929-58-0 (2017), 27, 2017
The synthesis of vitamin D is strongly linked to the availability of solar energy. For a long time, it was clear that using the erythemal irradiances is a good choice to calculate the exposure time. Several authors argue that this method of minimum exposure time overestimates the calculation of the solar irradiance of vitamin D.
arxiv  

Vitamin B-12 status during pregnancy and child's IQ at age 8: a Mendelian randomization study in the Avon longitudinal study of parents and children. [PDF]

PLoS ONE, 2012
Vitamin B-12 is essential for the development and maintenance of a healthy nervous system. Brain development occurs primarily in utero and early infancy, but the role of maternal vitamin B-12 status during pregnancy on offspring cognitive function is ...
Carolina Bonilla, Debbie A Lawlor, Amy E Taylor, David J Gunnell, Yoav Ben-Shlomo, Andrew R Ness, Nicholas J Timpson, Beate St Pourcain, Susan M Ring, Pauline M Emmett, A David Smith, Helga Refsum, Craig E Pennell, Marie-Jo Brion, George Davey Smith, Sarah J Lewis   +15 more
doaj   +1 more source

A study of clinical profile of vitamin B 12 deficiency with special reference to dermatologic manifestations in a Tertiary Care Hospital in sub-Himalayan Bengal

Indian Journal of Dermatology, 2015
Background: Vitamin B 12 deficiency is thought to be uncommon in the eastern parts of India including Bengal and the eastern states as compared to the northern and southern parts of India.
Kaushik Sen, Pradyot Sinhamahapatra, Joseph Lalhmachhuana, Subhabrata Ray   +3 more
doaj   +1 more source

Decreased serum vitamin D level as a prognostic marker in patients with COVID-19 [PDF]

arXiv, 2022
Background: The corona virus disease 2019 (COVID-19) pandemic, which is caused by severe acute respiratory syndrome coronavirus 2, is still localized outbreak and has resulted in a high rate of infection and severe disease in older patients with comorbidities.
arxiv  

Conformationally controlled photochemistry studied by trajectory surface hopping [PDF]

arXiv, 2022
This article reviews trajectory surface hopping methods to study conformationally controlled photochemistry. Besides focusing on the linear response time-dependent density functional theory surface hopping method, it reviews the generation of Boltzmann ensembles as starting conditions for photochemical dynamics, the calculation of electronic and ...
arxiv  

Efficacy of Vitamin Supplementation in Preventing Color Vision Abnormalities among Patients Undergoing DOTS for Tuberculosis

Philippine Journal of Ophthalmology, 2013
Objective: To determine if vitamin supplementation can prevent the development of color vision abnormalities in patients taking ethambutol as part of DOTS for tuberculosis (TB).
Jan Michael R. Reyes, MD, Anne Marfe L. Tan, MD, Melizza T. Ramirez, MD, Roland B. Bagnes, MD, Evelyn S. Morabe, MD, Emerson M. Cruz, MD   +5 more
doaj  

Synthesizing Correlations with Computational Likelihood Approach: Vitamin C Data [PDF]

arXiv, 2017
It is known that the primary source of dietary vitamin C is fruit and vegetables and the plasma level of vitamin C has been considered a good surrogate biomarker of vitamin C intake by fruit and vegetable consumption. To combine the information about association between vitamin C intake and the plasma level of vitamin C, numerical approximation methods
arxiv  

Combined dietary folate, vitamin B-12, and vitamin B-6 intake influences plasma docosahexaenoic acid concentration in rats

Nutrition & Metabolism, 2012
Background Folate, vitamin B-12, and vitamin B-6 are essential nutritional components in one-carbon metabolism and are required for methylation capacity. The availability of these vitamins may therefore modify methylation of phosphatidylethanolamine (PE)
van Wijk Nick, Watkins Carol J, Hageman Robert J J, Sijben John C W, Kamphuis Patrick G H J, Wurtman Richard J, Broersen Laus M   +6 more
doaj   +1 more source

Vitamin D sensitivity to the immune responses and autoimmunity: A chemical network model study [PDF]

arXiv, 2013
Although Vitamin D is believed to be involved in a large number of immune responses our understanding of these processes at cellular level remained at infancy. We develop and solve a coarse grained kinetic network model to quantify the effects of variation of vitamin D on human immunity. The system of equations accounts for known inter-relation between
arxiv