Serum Prolidase Activity and the Role of Leptin in Osteomalacia

Not Applicable

Not yet recruiting

• Conditions: Osteomalacia
• Interventions: Dietary Supplement: Vitamin D

• Registration Number: NCT05716750
• Lead Sponsor: TUĞBA ŞAHBAZ

Brief Summary

Evaluation of the change of serum Prolidase and Leptin values in the diagnosis and follow-up of osteomalacia and its clinical usability

Detailed Description

Osteomalacia describes a bone disorder in adults that is usually caused by long-term vitamin D deficiency. Osteomalacia, a metabolic bone disease characterized by impaired mineralization of the bone matrix.Not a single laboratory finding is specific to osteomalacia.The relationship between collagen and prolidase activity has been observed during fibrotic processes, where an increase in prolidase activity is accompanied by an increase in tissue collagen deposition. It has also been suggested that serum activity is increased in metabolic bone diseases.Leptin is a 16 kDa peptide hormone. It is a member of the long chain helical cytokine family, which is mainly produced by fat cells and proportional to the size of the stored fat. Leptin affects bone remodeling by reducing the activity of osteoclasts and thus participates in the pathogenesis of osteoporosis. In the light of these studies, the investigators planned our study according to the clinical significance of serum prolidase activity in osteomalacia and the place of leptin in osteomalacia.

Study Timeline

• Study First Submitted: 2023-01-09
• Study First Submitted QC: 2023-01-28
• Status Verified: 2023-02
• Study First Posted: 2023-02-08
• Last Update Submitted: 2023-02-10
• Last Update Posted: 2023-02-14
• Study Start: 2023-02-15
• Primary Completion: 2023-04-30
• Study Completion: 2023-06-30

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 38

Inclusion Criteria

• Among the patients who applied to the outpatient clinic, those with clinical complaints of osteomalacia (diffuse pain, fatigue, rapid fatigue, proximal extremity weakness, etc.)
• 25 0H vit. D level of 10ng/ml and below

Exclusion Criteria

• Other metabolic and endocrine bone diseases (secondary osteoporosis, paget hast, osteogenesis imperfecta, osteomyelitis etc.)
• Patients who have previously received treatment for low vitamin d
• Those with low vitamin D levels due to liver or kidney failure
• Those who receive treatment for tumor

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Osteomalasia	Vitamin D	Our study, which is the only group planned prospectively, aims to compare clinical and laboratory data and serum prolidase activity and leptin levels in 38 patients diagnosed with osteomalacia after and before 8 weeks of 50,000 IU D vit treatment.

Primary Outcome Measures

Name	Time	Method
Serum Leptin	8 weeks	Leptin
Serum Prolidase activity	8 weeks	Prolidase activity