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Research article
Habitually Late Bedtime is Associated With Elevated Serum Uric Acid and Monosodium Urate Monohydrate Deposition in Patients With Gout: A Case Control Study
Haibing Chen
Shanghai Jiao Tong University Affiliated Sixth People's Hospital
Corresponding Author
ORCiD: https://orcid.org/0000-0002-2259-5522
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This work is licensed under a CC BY 4.0 License. Read Full License
Background: In this study, we observed whether habitually late bedtime affects serum uric acid levels and monosodium urate monohydrate deposition in joints and tendons in patients with gout.
Methods: This study included 195 patients with gout, who had been divided into two groups based on their bedtime (early or late) and compared serum uric acid levels between the groups. The study also compared ultrasounds of joints and tendons between groups, including the metatarsal-phalangeal joints, knee joints, and tendons of the lower limbs. A multivariate logistic regression was used to analyse the risk factors of monosodium urate monohydrate deposition.
Results: Compared to patients with an early bedtime, those with a late bedtime had higher urate levels and a significantly higher proportion of double contour signs, tophi, and bone erosion in metatarsal-phalangeal joints (p < 0.05). Late-bedtime patients also had higher proportions of synovial hypertrophy and double contour signs in knee joints (p < 0.05), and a higher incidence of tophi in the quadriceps tendon (6.4%), compared to early-bedtime patients (2.5%; p < 0.05). Late bedtime was associated with monosodium urate monohydrate deposition.
Conclusions: Patients with gout who had a late bedtime exhibited elevated urate levels, enhanced monosodium urate monohydrate deposition, and greater gout-related joint damage, compared to patients with an early bedtime.
Keywords
Late bedtime, Gout, MSU deposition, Ultrasound
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This is a preprint. It has not completed peer review.
Research article
Habitually Late Bedtime is Associated With Elevated Serum Uric Acid and Monosodium Urate Monohydrate Deposition in Patients With Gout: A Case Control Study
Haibing Chen
Shanghai Jiao Tong University Affiliated Sixth People's Hospital
Corresponding Author
ORCiD: https://orcid.org/0000-0002-2259-5522
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 18 Jun, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Endocrinology & Metabolism
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: In this study, we observed whether habitually late bedtime affects serum uric acid levels and monosodium urate monohydrate deposition in joints and tendons in patients with gout.
Methods: This study included 195 patients with gout, who had been divided into two groups based on their bedtime (early or late) and compared serum uric acid levels between the groups. The study also compared ultrasounds of joints and tendons between groups, including the metatarsal-phalangeal joints, knee joints, and tendons of the lower limbs. A multivariate logistic regression was used to analyse the risk factors of monosodium urate monohydrate deposition.
Results: Compared to patients with an early bedtime, those with a late bedtime had higher urate levels and a significantly higher proportion of double contour signs, tophi, and bone erosion in metatarsal-phalangeal joints (p < 0.05). Late-bedtime patients also had higher proportions of synovial hypertrophy and double contour signs in knee joints (p < 0.05), and a higher incidence of tophi in the quadriceps tendon (6.4%), compared to early-bedtime patients (2.5%; p < 0.05). Late bedtime was associated with monosodium urate monohydrate deposition.
Conclusions: Patients with gout who had a late bedtime exhibited elevated urate levels, enhanced monosodium urate monohydrate deposition, and greater gout-related joint damage, compared to patients with an early bedtime.