Vitamin D deficiency in Thailand

Siwamogsatham, Oranan; Ongphiphadhanakul, Boonsong; Tangpricha, Vin

doi:10.1016/j.jcte.2014.10.004

Cited by 15 publications

(19 citation statements)

References 17 publications

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“…Vitamin D deficiency (VDD), which is usually defined as serum 25-hydroxyvitamin D [25(OH)D] levels less than 20 ng/mL [7], is a global health problem. In ailand, the prevalence of VDD in adults increased from 31.8% to 43% from 2011 to 2013 [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Preoperative Vitamin D Deficiency on Hypocalcemia in Patients with Acute Hypoparathyroidism after Thyroidectomy

Vibhatavata

Pisarnturakit

Boonsripitayanon

et al. 2020

International Journal of Endocrinology

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Postoperative hypoparathyroidism is a common complication of total or completion thyroidectomy. The association between preoperative vitamin D deficiency (VDD) and the development of more severe postoperative hypocalcemia is still unclear. Objectives. To evaluate the effect of preoperative VDD on severity of hypocalcemia in patients with hypoparathyroidism following thyroidectomy. Methods. Patients who developed acute hypoparathyroidism after total or completion thyroidectomy, defined as postoperative parathyroid hormone (PTH) level <15 pg/mL and albumin-adjusted calcium level <8.6 mg/dL, were prospectively recruited. Patients were divided into two groups according to their preoperative vitamin D status (VDD group: 25-hydroxyvitamin D (25(OH)D) level <20 ng/mL; non-VDD group: 25(OH) level ≥20 ng/mL). The primary outcome was severity of hypocalcemia in postoperative hypoparathyroidism. Significant hypocalcemia was defined as calcium level ≤7.5 mg/dL. Results. Forty-three patients (21 VDD, 22 non-VDD) were enrolled. Serum total albumin-adjusted calcium level was significantly lower in the VDD group (7.71 ± 0.5 vs. 8.16 ± 0.4 mg/dL, p<0.01), and the incidence of symptomatic hypocalcemia was significantly higher in the VDD group (43% vs. 9%, p=0.01). The median maximal daily supplementary dose of elemental calcium was significantly higher in the VDD group (2,400 vs. 1,500 mg/day, p=0.02). Length of hospital stay was nonsignificantly longer in the VDD group (p=0.06). Preoperative vitamin D level <19.6 ng/mL could predict significant and symptomatic hypocalcemia in postoperative hypoparathyroidism with sensitivity of 90% and 82% and specificity of 70% and 69%, respectively. Conclusion. VDD is an independent risk factor for both significant and symptomatic hypocalcemia in hypoparathyroidism patients after thyroid surgery.

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Section: Introductionmentioning

confidence: 99%

Effect of Preoperative Vitamin D Deficiency on Hypocalcemia in Patients with Acute Hypoparathyroidism after Thyroidectomy

Vibhatavata

Pisarnturakit

Boonsripitayanon

et al. 2020

International Journal of Endocrinology

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“…Air pollution also increases the risk of vitamin D insufficiency by reducing the level of UVB exposure. Low levels of dietary vitamin D have been reported in the populations of countries that do not fortify their foods with vitamin D (Siwamongsatham, Ongphiphadhanakul, & Tangpricha, 2015). In contrast, vitamin D supplements and fortified foods (milk, cereals, and margarine) are promoted in many countries, especially in Canada and the United States, which has been shown to reduce the prevalence of vitamin D deficiency in the population (Arif, Vieth, & Rousseau, 2007;Calvo, Whiting, & Barton, 2004).…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of Vitamin D₃ in Pickering Emulsion Stabilized by Nanofibrillated Mangosteen Cellulose: Effect of Environmental Stresses

Mitbumrung

Suphantharika

McClements

et al. 2019

Journal of Food Science

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Vitamin D3 was encapsulated in 10% wt soybean oil‐in‐water (O/W) Pickering emulsions stabilized by either nanofibrillated cellulose (NFC) or whey protein isolate (WPI) at 0.3%, 0.5%, and 0.7% w/w. The vitamin D3‐enriched emulsions were tested for their stability against temperature (30 °C to 90 °C), pH (2 to 8), and ionic strength (0 to 500 mM NaCl). The mean particle diameter (d32), ζ‐potential, and creaming stability of the oil droplets in the emulsions were measured, as well as their vitamin D3 encapsulation efficiency (EE). After preparation, the oil droplet size (d32) of the emulsions stabilized by NFC increased with increasing emulsifier concentration, whereas the droplet size of emulsions stabilized by WPI decreased. NFC provided good stability to the emulsions through a combination of steric and electrostatic repulsion. The EE of vitamin D3 increased with increasing emulsifier concentration. Heating or ionic strength did not significantly (P < 0.05) affect the emulsions properties and EE. On the other hand, the NFC‐stabilized emulsions were sensitive to highly acidic conditions (pH 2), with an increase in particle size and decrease in EE. The WPI‐stabilized emulsions aggregated around the isoelectric point of the adsorbed proteins (pI ≈ 4.8). Increasing NFC or WPI concentration improved the stability and EE of the emulsions against environmental stresses. NFC‐stabilized emulsions had good long‐term stability. The results show that NFC can be used as an effective emulsifier for creating vitamin‐enriched emulsions with good stability. Practical Application This study can be used to develop more effective encapsulation technologies for fat‐soluble vitamins in emulsion‐based food products. Encapsulation using nanofibrillated cellulose effectively protected the encapsulated vitamins against environmental stresses which occur in industrial food production (such as pH changes, salt addition, and thermal processing). Moreover, nanofibrillated cellulose extracted from mangosteen rind is a nature‐derived emulsifier that is environmental friendly.

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“…2 Furthermore, vitamin D deficiency recently has been shown to be associated with increased risks of some types of cancer, 3 cardiovascular disease, 4 autoimmune disease 5,6 and infectious disease. [11][12][13] Bangkok, the capital city of Thailand, is located at latitude 13°75 0 N and longitude 100°49 0 E, near the equator. Although some foods (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…8 High prevalence of asymptomatic but low serum levels of vitamin D has been reported in many countries, 9,10 including those with abundant sunshine. [11][12][13] Bangkok, the capital city of Thailand, is located at latitude 13°75 0 N and longitude 100°49 0 E, near the equator. The average duration of sunlight in Thailand is approximately 5-9 h daily, with a UV index of 8-12 from 11.00 hours to 13.00 hours.…”

Section: Introductionmentioning

confidence: 99%

Vitamin D status in Thai dermatologists and working‐age Thai population

Rajatanavin

Kanokrungsee

Aekplakorn

2018

The Journal of Dermatology

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This study aimed to determine the prevalence of vitamin D insufficiency among Thai dermatologists compared with the general working‐age population in Bangkok. A cross‐sectional study was conducted in healthy Thai physicians who had at least 1 years’ experience in dermatology practise and a subsample of the general Thai population from the Fourth National Health Survey. Serum 25‐hydroxyvitamin D (25[OH]D), a combination of 25(OH)D2 and 25(OH)D3, levels in both groups were measured using liquid chromatography coupled with mass spectrometry. The majority of dermatologists were of Fitzpatrick skin type III (n = 61, 61.3%) or IV (n = 32, 33.3%). The mean serum 25(OH)D and 25(OH)D3 levels were 18.9 and 18.2 ng/mL, respectively, whereas the corresponding levels in the general population were 26.5 and 25.8 ng/mL. None of the dermatologist had serum 25(OH)D sufficiency (>30 ng/mL), 38 (38.78%) had vitamin D insufficiency (20–30 ng/mL) and 60 (61.22%) had vitamin D deficiency (<20 ng/mL). The frequency of vitamin D deficiency in dermatologists was significantly higher than in the general population (61.2% vs 19.2%, P < 0.001). Ninety percent of dermatologists used sunscreen daily and spent time mostly indoors. Dermatologists used physical sun‐protection more than half of the time when outdoors, for example, a book or paper as a sunshade (70.3%), an umbrella (48.4%), a long‐sleeved shirt (20.4%) or a hat (9.7%). In conclusion, dermatologists showed a remarkably high prevalence of vitamin D deficiency which may be due to inadequate exposure to sunlight, regular use of sunscreen and practicing various sun‐protection activities.

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Vitamin D deficiency in Thailand

Cited by 15 publications

References 17 publications

Effect of Preoperative Vitamin D Deficiency on Hypocalcemia in Patients with Acute Hypoparathyroidism after Thyroidectomy

Effect of Preoperative Vitamin D Deficiency on Hypocalcemia in Patients with Acute Hypoparathyroidism after Thyroidectomy

Encapsulation of Vitamin D₃ in Pickering Emulsion Stabilized by Nanofibrillated Mangosteen Cellulose: Effect of Environmental Stresses

Vitamin D status in Thai dermatologists and working‐age Thai population

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Vitamin D deficiency in Thailand

Cited by 15 publications

References 17 publications

Effect of Preoperative Vitamin D Deficiency on Hypocalcemia in Patients with Acute Hypoparathyroidism after Thyroidectomy

Effect of Preoperative Vitamin D Deficiency on Hypocalcemia in Patients with Acute Hypoparathyroidism after Thyroidectomy

Encapsulation of Vitamin D3 in Pickering Emulsion Stabilized by Nanofibrillated Mangosteen Cellulose: Effect of Environmental Stresses

Vitamin D status in Thai dermatologists and working‐age Thai population

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Product

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Encapsulation of Vitamin D₃ in Pickering Emulsion Stabilized by Nanofibrillated Mangosteen Cellulose: Effect of Environmental Stresses