1.Evaluation of Acanthosis Nigricans as a Predictive Clinical Marker for Metabolic Risk in Children with Obesity
Annie Leong ; Nurshadia Samingan ; Muhammad Yazid Jalaludin ; Azriyanti Anuar Zaini
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):135-
Introduction:
Childhood obesity is associated with significant metabolic
morbidity, particularly insulin resistance (IR) and metabolic
syndrome. Acanthosis nigricans (AN) is frequently
observed in children with obesity and may represent a
practical clinical marker of IR. This study evaluated the
association between AN, IR, and metabolic complications
in paediatric obesity.
Methodology:
A retrospective review was performed of 148 children
(88 males, 60 females; median age 12 years) attending the
Paediatric Obesity Clinic at Universiti Malaya Medical
Centre. Data included anthropometry, AN grading, family
history, HOMA-IR, and metabolic screening. Outcomes
assessed were dyslipidemia, metabolic-associated fatty liver
disease (MAFLD), hypertension, obstructive sleep apnea
syndrome (OSAS), and glucose dysregulation. Comparisons were made between children with and without AN
at baseline and over follow-up (median 2.4 years).
Results:
AN was present in 81.8% of patients, and 82.4% had
central obesity. Increasing AN grade was significantly
associated with higher BMI SDS and American Academy of
Paediatrics obesity class (p <0.05). AN was more prevalent
among Malay and Indian children and was associated with
a family history of obesity (p <0.05). Baseline metabolic
abnormalities were common, including dyslipidemia
(high triglycerides 31.8%, low HDL 30.4%, high LDL
29.7%), MAFLD (23.6%), OSAS (31.1%), and glucose
dysregulation (27.7%), with no significant difference
between groups. During follow-up, children with AN and
more severe obesity developed significantly more metabolic
complications, particularly MAFLD and OSAS, with
increased requirement for non-invasive ventilation (p <0.05).
Higher HOMA-IR was associated with glucose dysregulation but was not independently associated with AN.
Conclusion
AN is strongly associated with greater adiposity and
predicts the progression of metabolic complications in
children with obesity. Routine assessment of AN may help identify high-risk patients who would benefit from early,
intensive intervention to reduce long-term cardiometabolic
morbidity
Child
;
Acanthosis Nigricans
;
Biomarkers
;
Obesity
2.Academic Title Case: Paediatric Glucocorticoid-Induced Hyperglycemia and Diabetic Ketoacidosis: An Under-Recognized Complication of Cancer Therapy
Sasirekha Krisnan Morthy ; Annie Leong ; Nurshadia Samingan ; Azriyanti Anuar Zaini
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):139-
Introduction:
Paediatric glucocorticoid-induced hyperglycemia (GIH)
and diabetes are frequently under-recognized complications of cancer therapy. Early identification is essential,
as delayed diagnosis may lead to severe metabolic
consequences, including diabetic ketoacidosis (DKA). This
study aims to characterize the clinical features, risk factors,
and outcomes of GIH in a tertiary centre.
Methodology:
A descriptive cross-sectional study was conducted at the
Paediatric Endocrinology Unit, University Malaya Medical
Centre, reviewing cases from January 2023 to December
2025. Data were extracted from electronic records, including
demographic, clinical, and treatment-related variables.
Results:
Twelve cases of GIH or diabetes were identified, including
two presenting with DKA. Most patients had leukemia
(92%), with a male predominance (75%). The median age
was 13.6 years, and the median body mass index was 22.1
kg/m². Over half (54%) were overweight or obese, and 45%
exhibited acanthosis nigricans. A family history of diabetes
was present in 75% of cases.
Hyperglycemia developed early in 66% of cases, typically
within 2–5 days of initiating high-dose glucocorticoids.
Median random blood glucose was 21.9 mmol/L, while
median HbA1c was 6.4%. Half were symptomatic, most
commonly with polyuria. Insulin therapy was required in
75% of cases, with a median duration of 26 days. Metformin
was used in 50% of cases, often in combination with insulin.
Most cases resolved following cessation of glucocorticoid
therapy, except one who continues to receive metformin
for a pre-diabetes state.
Conclusion
Adolescents, those with obesity, insulin resistance, and
a positive family history of diabetes, represent highrisk groups for GIH. Importantly, GIH may present
with life-threatening DKA. Routine glucose monitoring
and risk stratification during glucocorticoid therapy are
recommended. The development of local screening and
management guidelines is crucial for improving early
detection and optimizing patient outcomes.
Child
;
Diabetic Ketoacidosis
;
Glucocorticoids
;
Neoplasms
;
Hyperglycemia
3.Early puberty trend during the COVID-19 pandemic in Singapore: A retrospective review in a Single Tertiary Centre
Annie Leong ; Rashida Farhad Vasanwala
Journal of the ASEAN Federation of Endocrine Societies 2024;39(1):6-11
Objectives:
We aimed to study the trend of referrals for precocious puberty during the COVID-19 pandemic compared to pre-COVID years, explore the differences in the demographic and clinical features, and evaluate the contributing factors.
Methodology:
The cases referred for assessment of PP from 2018-2021 to our endocrine centre were grouped into pre-COVID (2018-2019) and COVID (2020-2021) years. Cases fulfilling the diagnosis of PP included the onset of thelarche <8 years in females and 4 ml testicular volume <9 years in males. The PP was further differentiated as Isolated Thelarche (IST) and Central Precocious Puberty (CPP). Early menarche was defined as menarche <10 years old.
Results:
There were more referrals for PP and more diagnosed as CPP during the COVID-19 pandemic, predominantly among females. There were more endocrine tests done and more cases received treatment. None of the abnormal magnetic resonance imaging (MRI) pituitary findings required surgical intervention. The body mass index (BMI) was found to be positively associated with the risk of getting CPP with a crude-odd ratio (COR) of 1.8, P <0.001, and early menarche (COR 2.1, P <0.001).
Conclusion
We found a significant increase in the referrals of PP and diagnosis of CPP during the COVID-19 pandemic. Higher BMI was found to be associated with CPP and early menarche.
Puberty, Precocious
;
COVID-19
;
Obesity


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