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Effects of vitamin D3 supplementation on oxidative and inflammatory stress markers in overweight or obese workers

Effects of vitamin D3 supplementation on inflammation and oxidative stress markers in overweight and obese women: a randomized, double-blind, placebo-controlled clinical trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-39srtp
Enrollment
Unknown
Registered
2020-06-03
Start date
2018-03-05
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity

Interventions

Control group: 15 obese women with 25 (OH) D deficiency or insufficiency received 1 placebo capsule (matodextrin, 1g). Experimental group: 14 obese women with vitamin D deficiency or insufficiency, re
Dietary supplement

Sponsors

Universidade Federal da Paraíba
Lead Sponsor
Universidade Federal da Paraíba
Collaborator

Eligibility

Sex/Gender
Female
Age
18 Years to 59 Years

Inclusion criteria

Inclusion criteria: women aged between 18 and 59 years; have vitamin D deficiency or insufficiency; have a Body Mass index greater than 25 kg / m²; do not take any vitamin D supplementation; not taking anticonvulsants or medications to treat the human immunodeficiency virus or acquired immunodeficiency syndrome; not having a diagnosis of Type I Diabetes Mellitus, nephrotic syndrome, acute or chronic kidney disease, liver disease, hypothyroidism, hyperthyroidism, history of stroke or acute myocardial infarction in the last 6 months; do not drink alcoholic beverages; do not smoke

Exclusion criteria

Exclusion criteria: Women with previous vitamin D use; women under 18 or over 59; women using anticonvulsants or medications to treat the human immunodeficiency virus or acquired immunodeficiency syndrome; women diagnosed with Type I Diabetes Mellitus, nephrotic syndrome, acute or chronic kidney disease, liver disease, hypothyroidism, hyperthyroidism, history of stroke or acute myocardial infarction in the last 6 months; Alcoholic women; smoking women.

Design outcomes

Primary

MeasureTime frame
Assess serum vitamin D levels after vitamin D3 megadose supplementation. It is expected to find increased serum levels after 4 weeks of supplementation. Serum vitamin D levels were assessed by chemiluminescent immunoassay. A significant increase in serum vitamin D levels was observed from 23.8 IU pre-intervention to 31.7 IU after intervention (p 0.05).

Secondary

MeasureTime frame
To evaluate serum markers of inflammation and oxidative stress after vitamin D3 megadose supplementation. It is expected to find serum levels of inflammatory markers and reduced oxidative stress after 4 weeks of supplementation. Serum levels of c-reactive protein and alpha glycoprotein were assessed by the immunoturbidimetric method. Oxidative stress was investigated by analyzing the total antioxidant capacity (TAC) using the 2,2-diphenyl-1-picrilhidrazil (DPPH) and lipid peroxidation method based on substances reactive to thiobarbituric acid (TBARS) with a spectrophotometric test. . There was no change in serum levels of c-reactive protein between pre and post-intervention in the placebo group (pre: 5.23 vs. post: 5.81, p> 0.05) or intervention (pre: 4.2 vs. post: 6.03, p> 0.05) . Similarly, alpha glycoprotein was not altered in the placebo group (pre: 96.5 vs. post: 87.5, p> 0.05) and in the intervention group (pre: 96.2 vs. post: 90.8, p> 0.05). Regarding the measures of oxidative stress, the total antioxidant capacity was similar in the placebo (pre: 26.9 vs. post: 26.7, p> 0.05) and in the intervention group (pre: 20.8 vs. post: 24.2, p> 0.05). However, lipid peroxidation levels did not change in the placebo group (pre: 2.8 vs. post: 3.1, p> 0.05), but increased in the intervention group (pre: 2.7 vs. post: 3.5, p <0.05).

Countries

Brazil

Contacts

Public ContactJosé Luiz Alves

Universidade Federal da Paraíba

jose_luiz_61@hotmail.com+55-081-998495485

Outcome results

None listed

Source: REBEC (via WHO ICTRP)