Laura A G Armas

Summary

Affiliation: Creighton University
Country: USA

Publications

  1. pmc Calcium absorption response to cholecalciferol supplementation in hemodialysis
    Laura A G Armas
    Osteoporosis Research Center, Creighton University, Omaha, Nebraska 68131, USA
    Clin J Am Soc Nephrol 8:1003-8. 2013
  2. pmc Trabecular bone histomorphometry in humans with Type 1 Diabetes Mellitus
    Laura A G Armas
    Osteoporosis Research Center, Creighton University, 601 N 30th St, Suite 4820, Omaha, NE 68131, USA
    Bone 50:91-6. 2012
  3. pmc 25-Hydroxyvitamin D response to cholecalciferol supplementation in hemodialysis
    Laura A G Armas
    Osteoporosis Research Center, Creighton University, Omaha, Nebraska 68131, USA
    Clin J Am Soc Nephrol 7:1428-34. 2012
  4. doi request reprint Pathophysiology of osteoporosis: new mechanistic insights
    Laura A G Armas
    Osteoporosis Research Center, Endocrine Division, Department of Internal Medicine, Creighton University Medical Center, 601 North 30th Street, Suite 4820, Omaha, NE 68131, USA
    Endocrinol Metab Clin North Am 41:475-86. 2012
  5. doi request reprint Do melanoidins induced by topical 9% dihydroxyacetone sunless tanning spray inhibit vitamin d production? A pilot study
    Laura A G Armas
    Osteoporosis Research Center, Creighton University, Omaha, NE, USA
    Photochem Photobiol 85:1265-6. 2009
  6. ncbi request reprint Chronic dietary fiber supplementation with wheat dextrin does not inhibit calcium and magnesium absorption in premenopausal and postmenopausal women
    L A G Armas
    Osteoporosis Research Center, Creighton University, 601 North 30th Street, Suite 4820, Omaha, NE 68131, USA
    J Int Med Res 39:1824-33. 2011
  7. ncbi request reprint Ultraviolet-B radiation increases serum 25-hydroxyvitamin D levels: the effect of UVB dose and skin color
    Laura A G Armas
    Creighton University Medical Center, Omaha, Nebraska 68131, USA
    J Am Acad Dermatol 57:588-93. 2007
  8. doi request reprint All-source basal vitamin D inputs are greater than previously thought and cutaneous inputs are smaller
    Robert P Heaney
    Creighton University, Omaha, NE, USA
    J Nutr 143:571-5. 2013
  9. doi request reprint Vitamin D(3) is more potent than vitamin D(2) in humans
    Robert P Heaney
    Creighton University, 601 North 30th Street, Suite 4841, Omaha, Nebraska 68131, USA
    J Clin Endocrinol Metab 96:E447-52. 2011
  10. ncbi request reprint Pharmacokinetics of a single, large dose of cholecalciferol
    Marium Ilahi
    Creighton University Medical Center, Omaha, NE 68131, USA
    Am J Clin Nutr 87:688-91. 2008

Collaborators

Detail Information

Publications16

  1. pmc Calcium absorption response to cholecalciferol supplementation in hemodialysis
    Laura A G Armas
    Osteoporosis Research Center, Creighton University, Omaha, Nebraska 68131, USA
    Clin J Am Soc Nephrol 8:1003-8. 2013
    ..Recent understanding of extrarenal production of calcitriol has led to the use of more vitamin D supplementation in CKD populations. This paper reports the effect of cholecalciferol supplementation on calcium absorption...
  2. pmc Trabecular bone histomorphometry in humans with Type 1 Diabetes Mellitus
    Laura A G Armas
    Osteoporosis Research Center, Creighton University, 601 N 30th St, Suite 4820, Omaha, NE 68131, USA
    Bone 50:91-6. 2012
    ..However, diabetics suffering fractures may have defects in their skeletal microarchitecture that may underlie the presence of excess skeletal fragility...
  3. pmc 25-Hydroxyvitamin D response to cholecalciferol supplementation in hemodialysis
    Laura A G Armas
    Osteoporosis Research Center, Creighton University, Omaha, Nebraska 68131, USA
    Clin J Am Soc Nephrol 7:1428-34. 2012
    ..This paper reports the pharmacokinetics of 25-hydroxyvitamin D response to 10,333 IU cholecalciferol given weekly in subjects on chronic dialysis...
  4. doi request reprint Pathophysiology of osteoporosis: new mechanistic insights
    Laura A G Armas
    Osteoporosis Research Center, Endocrine Division, Department of Internal Medicine, Creighton University Medical Center, 601 North 30th Street, Suite 4820, Omaha, NE 68131, USA
    Endocrinol Metab Clin North Am 41:475-86. 2012
    ..This progress has led to several new drug targets in the treatment of osteoporosis...
  5. doi request reprint Do melanoidins induced by topical 9% dihydroxyacetone sunless tanning spray inhibit vitamin d production? A pilot study
    Laura A G Armas
    Osteoporosis Research Center, Creighton University, Omaha, NE, USA
    Photochem Photobiol 85:1265-6. 2009
    ..We found that DHA-induced melanoidins in skin act as a topical sunscreen attenuating the formation of 25(OH)D...
  6. ncbi request reprint Chronic dietary fiber supplementation with wheat dextrin does not inhibit calcium and magnesium absorption in premenopausal and postmenopausal women
    L A G Armas
    Osteoporosis Research Center, Creighton University, 601 North 30th Street, Suite 4820, Omaha, NE 68131, USA
    J Int Med Res 39:1824-33. 2011
    ..9% ± 2.6% for placebo, showing that wheat dextrin had no effect on magnesium absorption. In conclusion, chronic wheat dextrin consumption did not inhibit calcium or magnesium absorption from the gastrointestinal tract in women...
  7. ncbi request reprint Ultraviolet-B radiation increases serum 25-hydroxyvitamin D levels: the effect of UVB dose and skin color
    Laura A G Armas
    Creighton University Medical Center, Omaha, Nebraska 68131, USA
    J Am Acad Dermatol 57:588-93. 2007
    ..Ultraviolet (UV)-B light increases vitamin D levels, but the dose response and the effect of skin pigmentation have not been well characterized...
  8. doi request reprint All-source basal vitamin D inputs are greater than previously thought and cutaneous inputs are smaller
    Robert P Heaney
    Creighton University, Omaha, NE, USA
    J Nutr 143:571-5. 2013
    ....
  9. doi request reprint Vitamin D(3) is more potent than vitamin D(2) in humans
    Robert P Heaney
    Creighton University, 601 North 30th Street, Suite 4841, Omaha, Nebraska 68131, USA
    J Clin Endocrinol Metab 96:E447-52. 2011
    ..Current unitage for the calciferols suggests that equimolar quantities of vitamins D(2) (D2) and D(3) (D3) are biologically equivalent. Published studies yield mixed results...
  10. ncbi request reprint Pharmacokinetics of a single, large dose of cholecalciferol
    Marium Ilahi
    Creighton University Medical Center, Omaha, NE 68131, USA
    Am J Clin Nutr 87:688-91. 2008
    ..There is much interest in dosing vitamin D intermittently for patient convenience and long-term adherence...
  11. doi request reprint Vitamin D: the iceberg nutrient
    Laura A G Armas
    Creighton University Osteoporosis Research Center, Omaha, Nebraska, USA
    J Ren Nutr 21:134-9. 2011
    ..We will discuss vitamin D's role in these disease states with a focus on the chronic kidney disease patient...
  12. ncbi request reprint 25-Hydroxylation of vitamin D3: relation to circulating vitamin D3 under various input conditions
    Robert P Heaney
    Osteoporosis Research Center, Creighton University, Omaha, NE 68131, USA
    Am J Clin Nutr 87:1738-42. 2008
    ..Neither the efficiency of the 25-hydroxylation of vitamin D nor the steady state relation between vitamin D(3) and 25-hydroxyvitamin D [25(OH)D] has been studied in humans...
  13. doi request reprint Volumetric dilution, rather than sequestration best explains the low vitamin D status of obesity
    Andjela T Drincic
    Department of Medicine, Creighton University, Omaha, NE, USA
    Obesity (Silver Spring) 20:1444-8. 2012
    ..There is no evidence for sequestration of supplemental or endogenous cholecalciferol. Vitamin D replacement therapy needs to be adjusted for body size if desired serum 25(OH)D concentrations are to be achieved...
  14. ncbi request reprint Vitamin D2 is much less effective than vitamin D3 in humans
    Laura A G Armas
    Creighton University, 601 North 30th Street, Suite 4841, Omaha, Nebraska 68131, USA
    J Clin Endocrinol Metab 89:5387-91. 2004
    ..5:1. Vitamin D(2) potency is less than one third that of vitamin D(3). Physicians resorting to use of vitamin D(2) should be aware of its markedly lower potency and shorter duration of action relative to vitamin D(3)...
  15. ncbi request reprint Vitamin D3 distribution and status in the body
    Robert P Heaney
    Creighton University, 601 N 30 St, Suite 4841, Omaha, NE 68131, USA
    J Am Coll Nutr 28:252-6. 2009
    ..To estimate the amount, type, and tissue distribution of vitamin D in the adult body under typical inputs...
  16. doi request reprint Successful treatment of tumor-induced osteomalacia due to an intracranial tumor by fractionated stereotactic radiotherapy
    Valentina D Tarasova
    Creighton University, 601 North 30th Street, Suite 5766, Omaha, Nebraska 68131
    J Clin Endocrinol Metab 98:4267-72. 2013
    ..To date, radiation therapy has not been considered as an effective treatment modality in TIO...