subject:(vitamin D2)

Boston University

1. Feigert, Caroline Elizabeth. The effect of vitamin D2, vitamin D3 or vitamin D2 in mushroom powder supplements on broad gene expression in human white blood cells.

Degree: MS, Medical Sciences, 2014, Boston University

URL: http://hdl.handle.net/2144/15093

► Sufficient vitamin D is important for overall health. However, cutaneous production of vitamin D is limited by season and little vitamin D naturally occurs in… (more)

Subjects/Keywords: Endocrinology; GSEA; Broad gene expession; Mushroom; Vitamin D; Vitamin D2; Vitamin D3

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Feigert, C. E. (2014). The effect of vitamin D2, vitamin D3 or vitamin D2 in mushroom powder supplements on broad gene expression in human white blood cells. (Masters Thesis). Boston University. Retrieved from http://hdl.handle.net/2144/15093

Chicago Manual of Style (16^th Edition):

Feigert, Caroline Elizabeth. “The effect of vitamin D2, vitamin D3 or vitamin D2 in mushroom powder supplements on broad gene expression in human white blood cells.” 2014. Masters Thesis, Boston University. Accessed March 02, 2021. http://hdl.handle.net/2144/15093.

MLA Handbook (7^th Edition):

Feigert, Caroline Elizabeth. “The effect of vitamin D2, vitamin D3 or vitamin D2 in mushroom powder supplements on broad gene expression in human white blood cells.” 2014. Web. 02 Mar 2021.

Vancouver:

Feigert CE. The effect of vitamin D2, vitamin D3 or vitamin D2 in mushroom powder supplements on broad gene expression in human white blood cells. [Internet] [Masters thesis]. Boston University; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2144/15093.

Council of Science Editors:

Feigert CE. The effect of vitamin D2, vitamin D3 or vitamin D2 in mushroom powder supplements on broad gene expression in human white blood cells. [Masters Thesis]. Boston University; 2014. Available from: http://hdl.handle.net/2144/15093

2. Börjesson, Emma. Analys av 25-hydroxyvitamin D i primärvården.

Degree: Faculty of Medicine and Health Sciences, 2015, Linköping UniversityLinköping University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120406

►

Background: The interest of vitamin D has increased in the last years. That is because there is so many possible positive effects of vitamin… (more)

▼

Background: The interest of vitamin D has increased in the last years. That is because there is so many possible positive effects of vitamin D and also because many individuals has vitamin D deficiency. Modern man spends much time indoors which leads to lower levels of vitamin D. People who have emigrated from a sunny climate to a Nordic climate often gets a deficiency due to a more pigmented skin which requires a larger amount of UVB to get an adequate synthesis of vitamin D. Aim: The aim with this study is to compare and evaluate how similar the instrument mini VIDAS measures 25(OH)D total against the current existing method cobas e 602. A discussion about if 25(OH)D total has a place in primary health care is included in the study. Method: The comparison was based on 39 samples. The samples was analyzed on cobas e 602 and mini VIDAS. A precision test was performed. External controls from DEQAS was also included in the study. The results have been presented with simple linear regression analysis, mean value, SD and CV. Results: The comparison between cobas e 602 and mini VIDAS gave a coefficient of determination of 81,34 %. mini VIDAS was closest to the external controls target values. Conclusion: There is no obvious conclusions about if mini VIDAS fulfills the requirement to be introduced to primary health care. The coefficient of determination of 81,34 % should be at least 95 %. However is mini VIDAS closer to the external controls target values then cobas e 602. There is factors that implies that 25(OH)D total has a place in primary health care with regards to demand, use and because many individuals has vitamin D deficiency. The instrument is also user-friendly to a primary health care laboratory.

Bakgrund: Intresset för vitamin D har ökat de senare åren. Det beror dels på att det finns många eventuella positiva effekter av vitamin D och dels på att många individer har brist på vitamin D. Nutidens människa spenderar mycket tid inomhus vilket leder till lägre nivåer av vitamin D. Personer som har utvandrat från ett soligt klimat till nordiskt klimat får ofta brist på grund av en mer pigmenterad hud som behöver större mängd UVB för att få en adekvat syntes av vitamin D. Syfte: Syftet med den här studien är att jämföra och utvärdera hur lika det patientnära instrumentet mini VIDAS mäter 25(OH)D total mot befintlig metod cobas e 602. Diskussion om analysen 25(OH)D total har en plats i primärvården ingår även i studien. Metod: Jämförelsen baserades på 39 st prover. Proven analyserades på cobas e 602 och mini VIDAS. Ett precisionsförsök gjordes. Externkontroller från DEQAS inkluderades även i studien. Resultaten har presenterats genom enkel linjär regressionsanalys, medelvärde, SD och CV. Resultat: Jämförelsen mellan cobas e 602 och mini VIDAS gav en förklaringsgrad på 81,43 %. mini VIDAS var närmst…

Subjects/Keywords: vitamin D; vitamin D2; ergokalciferol; vitamin D3; kolekalciferol; 25(OH)D; 1 25(OH)2D

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Börjesson, E. (2015). Analys av 25-hydroxyvitamin D i primärvården. (Thesis). Linköping UniversityLinköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120406

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Börjesson, Emma. “Analys av 25-hydroxyvitamin D i primärvården.” 2015. Thesis, Linköping UniversityLinköping University. Accessed March 02, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120406.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Börjesson, Emma. “Analys av 25-hydroxyvitamin D i primärvården.” 2015. Web. 02 Mar 2021.

Vancouver:

Börjesson E. Analys av 25-hydroxyvitamin D i primärvården. [Internet] [Thesis]. Linköping UniversityLinköping University; 2015. [cited 2021 Mar 02]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120406.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Börjesson E. Analys av 25-hydroxyvitamin D i primärvården. [Thesis]. Linköping UniversityLinköping University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120406

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Melbourne

3. Heath, Alicia Kathryn. Vitamin D and the risk of death and diabetes.

Degree: 2016, University of Melbourne

URL: http://hdl.handle.net/11343/115238

► Background Uncertainty surrounds the effects of vitamin D on extraskeletal health. Many observational studies have found inverse associations between vitamin D status and several outcomes,… (more)

▼ Background Uncertainty surrounds the effects of vitamin D on extraskeletal health. Many observational studies have found inverse associations between vitamin D status and several outcomes, including mortality and type 2 diabetes, but these results might be biased by confounding and reverse causality. Evidence from existing randomised controlled trials (RCTs) of vitamin D supplementation is of limited utility due to design limitations. Furthermore, although recent evidence from RCTs suggests that vitamins D2 and D3 might not function equivalently, existing observational studies have generally used total 25-hydroxyvitamin D (25(OH)D) concentrations (the sum of 25-hydroxyvitamin D2 (25(OH)D2) and 25-hydroxyvitamin D3 (25(OH)D3)) to assess vitamin D status without distinguishing between 25(OH)D2 and 25(OH)D3. Thus, any differences in their associations with health outcomes have not been explored. My principal aims were to investigate associations between vitamin D status and all-cause mortality, cause-specific mortality, and the incidence of type 2 diabetes; investigate the separate associations of 25(OH)D2 and 25(OH)D3 with all-cause mortality; and explore the possibility of reverse causality. Secondary aims were to assess the validity and reliability of measurements of 25(OH)D in dried blood spots (DBS), and investigate correlates of vitamin D status. Methods A case-cohort study nested within the Melbourne Collaborative Cohort Study (MCCS) was used. Concentrations of 25(OH)D2 and 25(OH)D3 in archived DBS were measured using liquid chromatography-tandem mass spectrometry. Correlates of vitamin D status were investigated using multiple linear regression. Cox regression was used to estimate hazard ratios (HRs) for mortality with adjustment for confounding variables. Barlow’s method and robust standard errors were used to account for the case-cohort design. Logistic regression was used to estimate odds ratios (ORs) in relation to type 2 diabetes. Results Measurements of 25(OH)D from DBS were reliable (within-batch and between-batch intraclass correlations for 493 replicate measurements = 0.82; 95% confidence interval (CI): 0.80, 0.85 and 0.73; 95% CI: 0.68, 0.78, respectively), and were highly correlated with plasma 25(OH)D (R2 from regression of plasma versus DBS 25(OH)D = 0.73). Correlates of vitamin D status were predominantly environmental, behavioural and lifestyle variables, and personal characteristics that influence sun exposure (R2 for predictive model = 0.31). Season was the strongest predictor of vitamin D status (partial R2 = 0.13). Concentrations of 25(OH)D3 were inversely associated with all-cause mortality (HR per 25 nmol/L increase = 0.85; 95% CI: 0.77, 0.95; P = 0.003), whereas the presence of 25(OH)D2 was positively associated with all-cause mortality (HR = 1.80; 95% CI: 1.09, 2.97; P = 0.02). Higher concentrations of 25(OH)D3 were associated with a reduced risk of death due to cancer (HR per 25 nmol/L increase = 0.86; 95% CI: 0.77, 0.97; P = 0.02), respiratory diseases (HR = 0.59;…

Subjects/Keywords: vitamin D; vitamin D2; vitamin D3; 25-hydroxyvitamin D; mortality; diabetes; cancer; cardiovascular disease

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Heath, A. K. (2016). Vitamin D and the risk of death and diabetes. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/115238

Chicago Manual of Style (16^th Edition):

Heath, Alicia Kathryn. “Vitamin D and the risk of death and diabetes.” 2016. Doctoral Dissertation, University of Melbourne. Accessed March 02, 2021. http://hdl.handle.net/11343/115238.

MLA Handbook (7^th Edition):

Heath, Alicia Kathryn. “Vitamin D and the risk of death and diabetes.” 2016. Web. 02 Mar 2021.

Vancouver:

Heath AK. Vitamin D and the risk of death and diabetes. [Internet] [Doctoral dissertation]. University of Melbourne; 2016. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11343/115238.

Council of Science Editors:

Heath AK. Vitamin D and the risk of death and diabetes. [Doctoral Dissertation]. University of Melbourne; 2016. Available from: http://hdl.handle.net/11343/115238

University of Helsinki

4. Tolosa, Bogale. Use of bio-enriched yeast and stability of its vitamin D2 in wheat dough baking.

Degree: Department of Food and Environmental Sciences; Helsingfors universitet, Agrikultur- och forstvetenskapliga fakulteten, Institutionen för livsmedels- och miljövetenskaper, 2015, University of Helsinki

URL: http://hdl.handle.net/10138/155770

► Vitamin D is one of the basic vitamins required by our body for maintaining stable health conditions and to have stronger bone structure. In countries… (more)

Subjects/Keywords: Vitamin D; Vitamin D fortification; fortified bread; vitamin D2; vitamin D3; Food Science; Food Science; Food Science

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tolosa, B. (2015). Use of bio-enriched yeast and stability of its vitamin D2 in wheat dough baking. (Masters Thesis). University of Helsinki. Retrieved from http://hdl.handle.net/10138/155770

Chicago Manual of Style (16^th Edition):

Tolosa, Bogale. “Use of bio-enriched yeast and stability of its vitamin D2 in wheat dough baking.” 2015. Masters Thesis, University of Helsinki. Accessed March 02, 2021. http://hdl.handle.net/10138/155770.

MLA Handbook (7^th Edition):

Tolosa, Bogale. “Use of bio-enriched yeast and stability of its vitamin D2 in wheat dough baking.” 2015. Web. 02 Mar 2021.

Vancouver:

Tolosa B. Use of bio-enriched yeast and stability of its vitamin D2 in wheat dough baking. [Internet] [Masters thesis]. University of Helsinki; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10138/155770.

Council of Science Editors:

Tolosa B. Use of bio-enriched yeast and stability of its vitamin D2 in wheat dough baking. [Masters Thesis]. University of Helsinki; 2015. Available from: http://hdl.handle.net/10138/155770

5. JASINGHE VIRAJ JANAKAKUMARA. Conversion of ergosterol in edible mushrooms to vitamin D2 by UV irradiation.

Degree: 2005, National University of Singapore

URL: http://scholarbank.nus.edu.sg/handle/10635/16472

Subjects/Keywords: Vitamin D2; ergosterol; Shiitake mushrooms; bioavailability; Irradiation; 25-hydroxyvitamin D

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

JANAKAKUMARA, J. V. (2005). Conversion of ergosterol in edible mushrooms to vitamin D2 by UV irradiation. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/16472

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

JANAKAKUMARA, JASINGHE VIRAJ. “Conversion of ergosterol in edible mushrooms to vitamin D2 by UV irradiation.” 2005. Thesis, National University of Singapore. Accessed March 02, 2021. http://scholarbank.nus.edu.sg/handle/10635/16472.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

JANAKAKUMARA, JASINGHE VIRAJ. “Conversion of ergosterol in edible mushrooms to vitamin D2 by UV irradiation.” 2005. Web. 02 Mar 2021.

Vancouver:

JANAKAKUMARA JV. Conversion of ergosterol in edible mushrooms to vitamin D2 by UV irradiation. [Internet] [Thesis]. National University of Singapore; 2005. [cited 2021 Mar 02]. Available from: http://scholarbank.nus.edu.sg/handle/10635/16472.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

JANAKAKUMARA JV. Conversion of ergosterol in edible mushrooms to vitamin D2 by UV irradiation. [Thesis]. National University of Singapore; 2005. Available from: http://scholarbank.nus.edu.sg/handle/10635/16472

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

ETH Zürich

6. Schneider, Hans. Die Prüfung und Gehaltsbestimmung von Vitamin D2-Reinsubstanz (Calciferol).

Degree: 1952, ETH Zürich

URL: http://hdl.handle.net/20.500.11850/131643

Subjects/Keywords: VITAMIN-D2, ERGOCALCIFEROL (BIOCHEMIE); ANALYTISCHE TECHNIKEN/VITAMINE (BIOCHEMIE); VITAMIN D2, ERGOCALCIFEROL (BIOCHEMISTRY); ANALYTICAL TECHNIQUES/VITAMINS (BIOCHEMISTRY); info:eu-repo/classification/ddc/570; Life sciences

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Schneider, H. (1952). Die Prüfung und Gehaltsbestimmung von Vitamin D2-Reinsubstanz (Calciferol). (Doctoral Dissertation). ETH Zürich. Retrieved from http://hdl.handle.net/20.500.11850/131643

Chicago Manual of Style (16^th Edition):

Schneider, Hans. “Die Prüfung und Gehaltsbestimmung von Vitamin D2-Reinsubstanz (Calciferol).” 1952. Doctoral Dissertation, ETH Zürich. Accessed March 02, 2021. http://hdl.handle.net/20.500.11850/131643.

MLA Handbook (7^th Edition):

Schneider, Hans. “Die Prüfung und Gehaltsbestimmung von Vitamin D2-Reinsubstanz (Calciferol).” 1952. Web. 02 Mar 2021.

Vancouver:

Schneider H. Die Prüfung und Gehaltsbestimmung von Vitamin D2-Reinsubstanz (Calciferol). [Internet] [Doctoral dissertation]. ETH Zürich; 1952. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/20.500.11850/131643.

Council of Science Editors:

Schneider H. Die Prüfung und Gehaltsbestimmung von Vitamin D2-Reinsubstanz (Calciferol). [Doctoral Dissertation]. ETH Zürich; 1952. Available from: http://hdl.handle.net/20.500.11850/131643

7. Beyer, Sarah. Effekten av vitamin D2 vs. D3 på 25(OH)D-statusen : En litteraturstudie.

Degree: Chemistry and Biomedical Sciences, 2018, Linnaeus University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-76417

►

Bakgrund: Vitamin D finns i två olika former, det animaliska D3 (kolekalciferol) och det vegetabiliska D2 (ergokalciferol). Det har rått olika åsikter bland läkarkåren… (more)

▼

Bakgrund: Vitamin D finns i två olika former, det animaliska D3 (kolekalciferol) och det vegetabiliska D2 (ergokalciferol). Det har rått olika åsikter bland läkarkåren och allmänheten om vilken av de två formerna som är mest potent för att höja 25(OH)D-statusen i blodet, det värde som mäts för att avgöra vitamin D-halten i kroppen. Då vitamin D-brist är vanligt förekommande bland befolkningen i Norden är det viktigt att veta vilken form som har bäst effekt och som därför bör användas för att behandla och förebygga vitamin D-brist. Det har även betydelse för veganer som inte äter det animaliska D3, där rekommendationen kanske behöver ändras. Syfte: Syftet med studien var att ta reda på om det finns någon skillnad i potensen av D2 respektive D3 för att höja 25(OH)D-statusen i blodet och i så fall, att hitta möjliga orsaker till denna skillnad. Metod: Sex relevanta vetenskapliga originalartiklar, som har undersökt effekten av D2 vs. D3 på 25(OH)D-statusen i blodet, hittades i databasen PubMed. Studierna genomfördes mellan 2008 och 2017. Studiedeltagarna var vuxna friska människor. Resultat: Fyra av studierna pekade på att D3 var mer effektivt än D2 för att höja 25(OH)D-statusen. En studie kom fram till att det inte fanns någon skillnad i potensen mellan D2 och D3 och en studie visade att D2 var mer effektivt jämfört med D3 när det gällde daglig behandling med låga doser men att D3 uppvisade bättre effekt vid behandling med höga doser med två eller fyra veckors avstånd. Slutsats: Majoriteten av studierna visade en bättre effekt av D3 än D2 för att höja 25(OH)D-nivåer i blodet. De blandade resultaten samt det begränsade antalet studier och deltagare gör att det inte är möjligt att kunna komma fram till en tydlig slutsats.

Background: Vitamin D comes in two different forms, D3 from animals (cholecalciferol) and D2 from plants (ergocalciferol). There has been different opinions among physicians and the general public about which of the calciferols is more potent to raise 25(OH)D-levels in the blood, which is the value that is measured to determine the vitamin D-status in the body. Since vitamin D deficiency is common among the people of the Nordic countries it is important to know which form has the best effect and should be used to treat and prevent vitamin D deficiency. Furthermore, it is relevant for vegans who do not eat the animalic D3, where recommendations might have to be changed. Aim: The aim of the study was to find out if there were differences in potency of D2 vs. D3 to raise 25(OH)D status in the blood and if so, to find possible explanations for those differences. Methods: Six relevant original articles that examined the effect of D2 vs. D3 on 25(OH)D status in the blood, were found in the database PubMed. The studies where published between the years 2008 and 2017. The participants were healthy…

Subjects/Keywords: Vitamin D; vitamin D2; vitamin D3; kolekalciferol; ergokalciferol; vitamin D-brist; kalcidiol; kalcitriol; 25(OH)D; 1; 25(OH)2D; vitamin D-tillskott; Medical and Health Sciences; Medicin och hälsovetenskap

…2.2.2 Vitamin D-metabolismen Vitamin D2 och D3 från kosten transporteras från tarmen i… …solens UVB-strålning i huden men både vitamin D2 och D3 finns även i små mängder i kosten. I… …berikas med ergokalciferol från svampar (2). 2.2.7 Vitamin D3/D2-debatt Sedan 1930… …talet har vitamin D2 och D3 ansetts vara lika effektiva, och den gällande inställningen bland… …litteraturstudie är att undersöka om det finns någon skillnad i hur vitamin D2 och D3 påverkar 25(OH…

6 more images…

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Beyer, S. (2018). Effekten av vitamin D2 vs. D3 på 25(OH)D-statusen : En litteraturstudie. (Thesis). Linnaeus University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-76417

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Beyer, Sarah. “Effekten av vitamin D2 vs. D3 på 25(OH)D-statusen : En litteraturstudie.” 2018. Thesis, Linnaeus University. Accessed March 02, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-76417.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Beyer, Sarah. “Effekten av vitamin D2 vs. D3 på 25(OH)D-statusen : En litteraturstudie.” 2018. Web. 02 Mar 2021.

Vancouver:

Beyer S. Effekten av vitamin D2 vs. D3 på 25(OH)D-statusen : En litteraturstudie. [Internet] [Thesis]. Linnaeus University; 2018. [cited 2021 Mar 02]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-76417.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Beyer S. Effekten av vitamin D2 vs. D3 på 25(OH)D-statusen : En litteraturstudie. [Thesis]. Linnaeus University; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-76417

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

		in
And / Or
		in
And / Or
		in
And / Or
		in

Open Access Theses and Dissertations