1.Vitamin D status in a monocentric cohort of systemic lupus erythematosus (SLE) patients and correlations with clinical and immunological profile
The Medical Journal of Malaysia 2019;74(6):492-498
Introduction: Numerous studies have found that a majority
of systemic lupus erythematosus (SLE) patients have suboptimal vitamin D levels. The major contributory factor is
most likely attributed to sun protection measures in order to
avoid SLE flares. The objectives of this research included
the assessment of vitamin D status and its association with
clinical manifestations of SLE, cardiovascular risk factors,
autoantibodies, SLE disease activity and damage accrual.
Method: This retrospective study involved SLE patients who
attended the Rheumatology Clinic at the Hospital Kuala
Lumpur from January 2014 to December 2016. Vitamin D
was categorised as normal, insufficient or deficient, and the
clinical variables were compared across vitamin D
categories with chi-squared tests and Pearson correlation
coefficient.
Results: We included 216 patients. The mean 25(OH)D
concentration was 51.3(Standard Deviation; SD 14.8) nmol/L.
Fifty (23.1%) patients had vitamin D deficiency, 120 (55.6%)
had vitamin D insufficiency, while 46 (21.3%) had adequate
vitamin D levels. There were statistically significant
associations between vitamin D status and ethnic group,
lupus nephritis and hypertension. No correlations were
observed between vitamin D status with SLEDAI score
(Pearson correlation coefficient -0.015, p=0.829) as well as
SDI score (Pearson correlation coefficient -0.017, p=0.801).
Conclusion: SLE patients should be screened for vitamin D
concentrations and their levels optimised.
2.Quinacrine: An Effective Addition to the Treatment of Refractory Cutaneous Lupus Erythematosus
Malaysian Journal of Dermatology 2021;46(June 2021):49-51
Summary
Treatment of refractory cutaneous lupus is challenging. When conventional therapy, including hydroxychloroquine (HCQ), corticosteroids and immunosuppressants, has failed, the addition of quinacrine may be a promising option. We describe a case of refractory chronic cutaneous lupus erythematosus (CCLE) who responded well to quinacrine.
Quinacrine
;
Lupus Erythematosus, Cutaneous
3.A single-centre experience of febuxostat as a second-line urate-lowering therapy
Malaysian Family Physician 2021;16(1):50-55
Introduction: The purpose of this study was to describe the local experience in terms of drug efficacy and safety using a new xanthine oxidase inhibitor, febuxostat, as a second-line urate lowering therapy (ULT) in gout patients with normal renal function and chronic kidney disease.
Methods: This cross-sectional study included all gout patients who attended the rheumatology clinic from January 2013 to June 2018 and had received febuxostat as a second-line ULT. Analysis focused on the proportion of gout patients who achieved target serum urate (sUA) of <360 μmol/L, duration taken to achieve target sUA, and febuxostat dosage at achievement of target sUA. Safety assessments included comparison of serum creatinine, estimated glomerular filtration rate (eGFR), and serum alanine aminotransferase (ALT) at baseline, at achievement of target sUA, and at 12-monthly intervals.
Results: Majority (90.9%) of patients achieved target sUA. Median duration required to achieve target sUA was 5.5 months with IQR (interquartile range) of 8.5. Five (22.7%) patients achieved target sUA within one month of therapy with febuxostat 40 mg per day. Eleven (55%) patients achieved target sUA within six months and 16 (80%) by 12 months. Equal proportion of patients achieved target sUA with febuxostat 40 mg per day and 80 mg per day, respectively. There was no significant difference in the changes in serum creatinine level, eGFR and ALT from baseline and at achievement of target sUA, nor at 12-monthly intervals throughout the duration of febuxostat therapy. Apart from three patients who developed hypersensitivity reactions to febuxostat, no other adverse events were reported.
Conclusion: A significant proportion of gout patients with CKD managed to achieve target sUA with a lower dose of febuxostat at 40 mg per day and it is reasonable to maintain this dose for up to six months before considering dose escalation.
4.Atypical case of diffuse idiopathic skeletal hyperostosis mimicking ankylosing spondylitis in a young woman with polycystic ovary syndrome
The Medical Journal of Malaysia 2019;74(6):558-560
Both diffuse idiopathic skeletal hyperostosis and ankylosing
spondylitis present with similar clinical manifestations of
restricted spinal mobility and postural abnormalities, and
radiographic resemblances including axial spine
involvement and enthesopathy. Nonetheless, they are two
entirely different diseases. We report an unusual case of
DISH in a young woman whose diagnosis was established
based on radiologic features. This case report aims to
highlight the under-recognised radiologic aspects of the
differential diagnosis between DISH and AS in order to avoid
an inaccurate diagnosis.