1.Association of the clinical profile and outcomes of Gestational Diabetes Mellitus Patients admitted in a Tertiary Hospital in Cebu City from January 2021 to December 2022.
Joshua H. SERVANDE ; Ma. Vircel DUYONGCO-TIU
Philippine Journal of Internal Medicine 2026;64(1):7-20
OBJECTIVES
This study aimed at determining the association of the clinical profile of patients with GDM to maternal and neonatal outcomes
METHODSThis single-center, retrospective, descriptive, cross-sectional chart review was conducted in a tertiary hospital in Cebu City to 229 patients with GDM admitted from January 2021 to December 2022.
RESULTSThe study revealed several significant associations. Hypertension was strongly linked with primary cesarean section (OR: 4.32, P-value 0.004); and severe pre-eclampsia (OR: 16.97, P-value: 0.000). Gravidity showed significant correlations with Ballard’s score (P-value: 0.013), birthweight (P-value: 0.045) and 5-minute APGAR score (P-value: 0.001). Parity was associated with birthweight (P-value: 0.011) and 5-minute APGAR score (P-value: 0.001). Weight gain during pregnancy was linked to birthweight (P-value: 0.004) and occurrence of congenital anomalies (OR: 1.26, P-Value: 0.032). Additionally, prenatal smoking was associated with 5-minute APGAR score (P-value: 0.006). Moreover, having a Small for Gestational Age (SGA) fetal growth status is associated with insulin-requiring mothers, (OR: 4.79, P-Value: 0.049); and a family history of diabetes was significantly associated with insulin therapy (OR: 5.38, P-value: 0.021).
CONCLUSIONPatients' clinical profile affect maternal and neonatal outcomes among patients with GDM. Careful consideration of these factors during the perinatal period may help reduce maternal and fetal risks
Tertiary Care Centers ; Smoking ; Pregnancy ; Diabetes, Gestational ; Hypertension ; Apgar Score
2.Global Diagnostic Criteria for Gestational Diabetes Mellitus: A Scoping Review Protocol to Inform Policy in Malaysia
Siti Sarah Hamzah ; Shazana Rifham Abdullah ; Nur Zati Iwani Ahmad Kamil ; Liyana Ahmad Zamri ; Nur Azlin Zainal Abidin ; Sharifah Nortasya Sayed ; Muhamad Kamarudin
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):47-48
Introduction:
Gestational diabetes mellitus (GDM) is a common pregnancy complication associated with adverse maternal and
neonatal outcomes, including hypertensive disorders,
caesarean delivery, macrosomia, and increased lifetime
risk of type 2 diabetes. Despite its clinical importance,
considerable international variation exists in GDM
screening and diagnostic criteria. Multiple frameworks are currently used, including those from the World Health
Organization (WHO), International Association of Diabetes
and Pregnancy Study Groups, Carpenter and Coustan, and
the National Diabetes Data Group. Differences in glucose
thresholds, testing protocols (one-step versus two-step),
and universal versus risk-based screening contribute
to heterogeneity in reported prevalence and healthcare
burden. In multi-ethnic, middle-income settings such as
Malaysia, identifying an evidence-informed and contextappropriate diagnostic approach is critical.
Methodology:
This scoping review follows the Joanna Briggs Institute
methodology and will be reported in accordance with the
PRISMA Extension for Scoping Reviews (PRISMA-ScR).
PubMed, Scopus, and ScienceDirect will be searched for
English-language studies, reviews, guidelines, and consensus statements reporting GDM diagnostic criteria. Two
reviewers will independently screen and select studies.
Results:
Data will be charted on country, study type, diagnostic
criteria, gestational age at screening, and reported
challenges. Findings will be synthesized descriptively and
presented in tables and figures. No formal risk-of-bias
assessment will be conducted.
Conclusion
This review will provide a comprehensive overview of
global diagnostic practices, highlight variations and gaps,
and support evidence-based selection of a suitable GDM
screening and diagnostic strategy for Malaysia.
Diabetes, Gestational
;
Malaysia
;
Policy
;
Review Literature as Topic
3.Maternal Hypoglycemia with Large Uterine Fibroid and Paradoxical Fetal Overgrowth: Plausible Mechanisms
Jayaseelan Sekaran ; Vickneswaran Marathamuthu ; Ooi Chuan Ng
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):68-
Introduction:
Uterine fibroids are common in reproductive-age women
and are associated with obstetric complications. Their
potential contribution to maternal metabolic disturbances is
poorly described. We report a case of maternal hypoglycemia
in the setting of a large uterine fibroid and fetal overgrowth,
suggesting a possible endocrine–metabolic interaction.
Case:
A 39-year-old multiparous female with no history of
diabetes or endocrine disease had a large lower-segment
uterine fibroid measuring 8 × 10 cm. Pregnancy was otherwise uncomplicated until 39 weeks, when she underwent
classical Caesarean section for transverse lie and delivered
a large-for-gestational-age infant.
Postpartum, she developed recurrent symptomatic hypoglycemia despite normal hemoglobin A1c (5.0%) and preserved thyroid and adrenal function. There was no evidence
of sepsis, liver disease, medication exposure, or insulinoma.
Hypoglycemia resolved spontaneously following delivery.
Postnatal imaging showed persistence of the fibroid (6 ×
9 cm). She remains under follow-up, considering interval
laparoscopic myomectomy with bilateral tubal ligation.
The coexistence of maternal hypoglycemia and fetal
overgrowth raises the possibility of altered maternal–
fetal glucose dynamics. Large mesenchymal tumors may
produce insulin-like growth factor 2 (IGF-2), causing
non–islet cell tumor hypoglycemia. Fibroid-related uteroplacental hemodynamic changes or increased fetal glucose
demand may also contribute. While causality cannot be
established, the temporal resolution post-delivery suggests
a contributory role of the fibroid in metabolic disturbance.
Conclusion
This case highlights a rare but clinically relevant association between a large uterine fibroid, maternal hypoglycemia, and fetal overgrowth. In pregnant patients with
unexplained hypoglycemia, uterine fibroids may represent
an overlooked factor. Multidisciplinary follow-up and
further research into IGF signaling and placental–tumor
interactions are warranted.
Diabetes, Gestational
;
Fetal Macrosomia
;
Leiomyoma
;
Hypoglycemia
4.Factors associated with insulin usage in patients with gestational diabetes mellitus given antenatal corticosteroid
Ria Breneli A. Sumampong-timpac ; Maria Honolina S. Gomez
Journal of Medicine University of Santo Tomas 2025;9(1):1532-1542
INTRODUCTION
Administration of antenatal corticosteroids (ACS) between 24 and 36 weeks of gestation is recommended to pregnant women at risk of preterm delivery to decrease the risk of respiratory distress syndrome, intra-ventricular hemorrhage and neonatal death. However, it may worsen glycemic profile primarily in those with gestational diabetes mellitus (GDM).
OBJECTIVETo determine the effects of ACS on maternal glycemia in Filipino women with GDM and to analyze the factors associated with insulin use or increased insulin requirement.
METHODOLOGYA retrospective study of the medical records of Filipino women with GDM who were admitted and received ACS treatment (betamethasone) between 24- and 36-weeks age of gestation (AOG) for fetal lung maturity from 2017-2019. Clinical characteristics (age, parity, completed ACS dose, AOG at ACS administration and mode of delivery) and glycemic control were retrieved and compared before and after ACS treatment. Data collection began the day or on the day before steroids were given and continued until discharge or delivery.
RESULTSIncluded were 42 pregnant women with GDM. Of these, 28 women with GDM were treated by diet alone (Group A) while 14 women with GDM were started on insulin in addition to diet (Group B). After betamethasone therapy was initiated, only three (Group A1; n=3/28) patients had good glycemic control with diet alone and the rest were given insulin treatment (Group A2; n=25/28). In this subpopulation of Group A2, insulin requirement within 24 hours after ACS was at 0.3 units per kg of body weight. There was a steady increase with maximum requirement observed on day 4 and decreased thereafter to 0.33 units per kg of body weight on day 5. For GDM women in Group B, only three maintained their insulin dose (Group B1; n=3/14) while 11 (Group B2; n=11/14) women with GDM previously on insulin, required further increase in insulin from day 1-2 reaching 140% increase in insulin dose on day 2. Thereafter, there was a gradual decrease of insulin dose almost returning to initial dose on day 5.
Insulin initiation was observed among GDM diet-controlled mothers (Group A) who were given ACS therapy at ≥31 weeks age of gestation. Age, parity, family history of diabetes and mode of delivery did not have significant effects on insulin use nor increased insulin requirement. Fasting capillary glucose (FCG) and one-hour post-prandial capillary glucose (PPCG) were elevated within 24 hours after administration of corticosteroid (betamethasone) in 60%-70% of our population. The FCG values remained elevated on day 2-3 in about 70% of patients. While the first hour PPCG was elevated in 85% of patients on day 2 and remained elevated in 70% of women on day 3-4, it reached 53% on day 5. Insulin requirement among Group B2 reached to 140% increase in insulin dose on day 2 followed by a gradual decrease of insulin dose almost returning to initial dose on day 5.
CONCLUSIONACS administration caused maternal hyperglycemia in Filipino women with GDM during the first 24 hours and lasting up to five days. Both fasting glucose and post-prandial glucose were elevated, hence intensified monitoring of maternal glucose levels and temporary addition or increase of insulin doses may be necessary. The timing (≥31 weeks AOG) of administration of ACS on GDM women was associated with subsequent insulin initiation but only on patients initially controlled on diet alone.
Human ; Female ; Diabetes Mellitus ; Diabetes, Gestational ; Adrenal Cortex Hormones ; Respiratory Distress Syndrome
5.Comparison of third trimester fetal abdominal circumference in Filipino pregnant women with and without gestational diabetes mellitus in a tertiary hospital: A retrospective cohort study
Joan Kristina O. Diaz ; Frances Lina C. Lantion-Ang ; Maria Rosario Laarni C. Diaz ; Debbie Ann P. Lancero ; Djeaune Rivere-Ocampo
Philippine Journal of Internal Medicine 2025;63(2):107-113
BACKGROUND
Gestational diabetes mellitus (GDM) may increase fetal abdominal fat mass, but its correlation with fetal abdominal circumference (AC) is inconsistent. This study compares third trimester fetal AC between adult pregnant patients with and without GDM, and between those managed with diet modification alone versus insulin therapy.
METHODSThis retrospective cohort study involved 354 Filipino adult pregnant patients at The Medical City admitted for delivery from January 2016 to May 2022. This included 180 patients with GDM, and 174 patients without GDM. One hundred sixteen (116) of the GDM patients were diet-managed, and 64 were insulin-requiring. Participants underwent third trimester fetal AC ultrasound and 75-gram oral glucose tolerance test (OGTT) between 24 to 28 weeks of gestation. The third trimester fetal AC, fetal outcomes and maternal outcomes between patient groups were analyzed using Stata 15.0.
RESULTSThe GDM group had higher rates of cesarean section delivery (70% vs 46.55%, p < .001), maternal complications (35.56% vs 2.3%, p < .001); and neonates with lower age of gestation at birth (38 vs 39 weeks, p < .001), longer birth length (49 vs 48cm, p = .001), and higher number of NICU admissions (13.33 vs 4.02%, p = .002). The study exhibited correlation between GDM status and third trimester fetal AC (coefficient (ββ) 0.60, 95% confidence interval 0.18, 1.03). Adjusting for gestational age at ultrasound, fetal AC in the GDM group was 0.60 cm larger than in the non-GDM group (p = .006). At 37 weeks, median fetal AC was 33.2 cm in the GDM group (versus 32.4, p = 0.001). There was no significant association between GDM management type and fetal AC.
CONCLUSIONThird trimester fetal AC is significantly larger in women with GDM compared to non-GDM women, regardless of management method. Monitoring fetal AC during the third trimester is important for prenatal care in GDM pregnancies.
Human ; Female ; Diabetes, Gestational
6.Impact of maternal body mass index and gestational comorbidities on the birth prevalence of orofacial clefts in the Japan Environment and Children's Study.
Shinobu TSUCHIYA ; Masahiro TSUCHIYA ; Haruki MOMMA ; Masatoshi SAITO ; Chiharu OTA ; Kaoru IGARASHI
Environmental Health and Preventive Medicine 2025;30():86-86
BACKGROUND:
An increased prevalence of cleft lip and/or palate (CL/P), a major congenital anomaly, has been observed in the offspring of women with elevated body mass index (BMI) before pregnancy. Likewise, gestational comorbidities, such as hypertension and diabetes mellitus, also increase the risk of CL/P; however, the risk linked to the coexistence of these conditions in women with higher BMI on birth prevalence of CL/P remains unclear. This study focused on the combined effects of a high BMI before pregnancy and gestational comorbidities on the birth prevalence of CL/P.
METHODS:
Among 98,373 live births from the Japan Environment and Children's Study (JECS), a nationwide birth cohort, 255 mothers of infants with CL/P (74, 112, and 69 infants born with cleft lip, cleft lip and palate, and isolated cleft palate, respectively) were included in the analyses. The association of CL/P birth prevalence with pre-pregnancy BMI and gestational comorbidities (hypertension and diabetes) was examined using multivariate logistic regression analyses after multiple imputations, with adjustments for several maternal (age at delivery, smoking habits, and alcohol intake) and child-related (sex and prevalence of other congenital diseases) variables, obtained through medical record transcriptions and self-reports on JECS transcription forms.
RESULTS:
Higher prevalence rates of overweight, gestational hypertension, and gestational diabetes mellitus were found in mothers of infants with CL/P (16.1%, 6.3%, and 4.7%, respectively) than in the control group (10.4%, 3.1%, and 3.1%, respectively). The odds ratio [95% confidence interval] for childbirth with CL/P was increased in mothers with high BMI before pregnancy (1.58 [1.11-2.24]). Furthermore, gestational hypertension and diabetes coexisting with high BMI additionally increased the odds ratios for childbirth with CL/P (2.91 [1.28-6.61] and 2.12 [0.87-5.19], respectively).
CONCLUSION
High maternal BMI, particularly when accompanied by gestational hypertension, was significantly associated with an increased prevalence of childbirth with CL/P.
Humans
;
Female
;
Cleft Lip/etiology*
;
Cleft Palate/etiology*
;
Pregnancy
;
Japan/epidemiology*
;
Prevalence
;
Body Mass Index
;
Adult
;
Male
;
Infant, Newborn
;
Comorbidity
;
Diabetes, Gestational/epidemiology*
;
Risk Factors
;
Young Adult
;
Birth Cohort
7.Causal relationship between gut microbiota and diabetes based on Mendelian randomization.
Manjun LUO ; Ziye LI ; Mengting SUN ; Jiapeng TANG ; Tingting WANG ; Jiabi QIN
Journal of Central South University(Medical Sciences) 2025;50(3):469-481
OBJECTIVES:
The gut microbiota plays a crucial role in the pathophysiology of various types of diabetes. However, the causal relationship between them has yet to be systematically elucidated. This study aims to explore the potential causal associations between gut microbiota and diabetes using a two-sample Mendelian randomization (MR) analysis, based on multiple taxonomic levels.
METHODS:
Eligible instrumental variables were extracted from the selected genome-wide association study (GWAS) data on gut microbiota. These were combined with GWAS datasets on type 1 diabetes (T1D), type 2 diabetes (T2D), and gestational diabetes mellitus (GDM) to conduct forward MR analysis, sensitivity analysis, reverse MR analysis, and validation of significant estimates. Microbial taxa with causal effects on T1D, T2D, and GDM were identified based on a comprehensive assessment of all analytical stages.
RESULTS:
A total of 2 179, 2 176, and 2 166 single nucleotide polymorphisms (SNP) were included in the MR analyses for gut microbiota with T1D, T2D, and GDM, respectively. MR results indicated causal associations between: Six microbial taxa (Eggerthella, Lachnospira, Bacillales, Desulfovibrionales, Parasutterella, and Turicibacter) and T1D; 9 microbial taxa (Verrucomicrobia, Deltaproteobacteria, Actinomycetales, Desulfovibrionale, Actinomycetaceae, Desulfovibrionaceae, Actinomyces, Alcaligenaceae, and Lachnospiraceae NC2004 group) and T2D; 10 microbial taxa (Betaproteobacteria, Coprobacter, Ruminococcus2, Tenericutes, Clostridia, Methanobacteria, Mollicutes, Methanobacteriales, Methanobacteriaceae, and Methanobrevibacter) and GDM.
CONCLUSIONS
This study identified specific gut microbial taxa that may significantly increase or decrease the risk of developing diabetes. Some findings were fully replicated in independent validation datasets. However, the underlying biological mechanisms of these causal relationships warrant further investigation through mechanistic studies and population-based research.
Gastrointestinal Microbiome/genetics*
;
Humans
;
Mendelian Randomization Analysis
;
Genome-Wide Association Study
;
Diabetes Mellitus, Type 2/genetics*
;
Diabetes Mellitus, Type 1/genetics*
;
Female
;
Polymorphism, Single Nucleotide
;
Diabetes, Gestational/genetics*
;
Pregnancy
8.A Study on the hearing level of high-risk children of diabetic mothers.
Jiao ZHANG ; Minghui ZHAO ; Haina DING ; Wei SHI ; Lan LAN ; Qiuju WANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(3):202-213
Objective:To analyze the hearing outcomes of high-risk children of diabetic mothers, especially in the subtypes of pre-pregnancy diabetes and gestational diabetes, in order to provide some reference for clinical practice. Methods:The basic characteristics and hearing levels of children whose mothers had a history of diabetes during pregnancy and underwent audiological diagnosis and evaluation at our hospital's Children's Hearing Diagnosis Center from January 2003 to June 2024 were analyzed. T-tests, Wilcoxon rank-sum tests, and chi-square tests were used for inter-group comparisons, with a significance level set at P<0.05. Results:A total of 285 children(570 ears) of diabetic mothers were included. Hearing loss was found in 310 ears, and the incidence of hearing loss was 54.39%(310/570). The mean ABR threshold in the pregestational diabetes group was(50.01±29.29) dB HL, while that in the gestational diabetes group was(44.13±26.19) dB HL. The degree of hearing loss in the pregestational diabetes group was more severe than that in the gestational diabetes group(χ²=10.000, P=0.019). Conclusion:Maternal history of diabetes may be one of the risk factors for hearing loss in their offspring, and the risk of hearing loss in children whose mothers had diabetes before pregnancy may be higher than that in the gestational diabetes group. It is suggested that the clinical practice should pay attention to the monitoring and follow-up management of the hearing status of such children, so as to improve the auditory outcomes of children born to diabetic mothers.
Humans
;
Female
;
Pregnancy
;
Diabetes, Gestational
;
Hearing Loss/etiology*
;
Child
;
Pregnancy in Diabetics
;
Risk Factors
;
Child, Preschool
;
Mothers
;
Male
9.Association study of FADS2 gene rs174575 and rs2845574 single nucleotide polymorphisms with blood pressure and lipid levels in pregnant women.
Yuwen GUO ; Huai BAI ; Linbo GUAN ; Xinghui LIU ; Ping FAN ; Yujie WU ; Suiyan LI
Chinese Journal of Medical Genetics 2025;42(6):675-683
OBJECTIVE:
To assess the association between the single nucleotide polymorphisms (SNP) rs174575 and rs2845574 of the fatty acid desaturase 2 (FADS2) gene and gestational diabetes mellitus (GDM).
METHODS:
A total of 1 514 pregnant women who visited West China Second University Hospital of Sichuan University between January 1, 2013 and December 31, 2021 were enrolled in this study. Among them, 583 were diagnosed with gestational diabetes mellitus (GDM group), and 931 had normal pregnancies (control group). The SNPs rs174575 and rs2845574 of the FADS2 gene were analyzed using Sanger DNA sequencing. Plasma levels of insulin (INS), apolipoprotein A1 (apoA1) and apolipoprotein B (apoB) were measured using enzymatic methods, chemiluminescence and immunoturbidimetry. This study was approved by the Medical Ethics Committee of the West China Second University Hospital of Sichuan University (Ethics No.: 2020-036).
RESULTS:
The main genotype at the rs174575 C/G and rs2845574 C/T loci were CC in both GDM and control groups. No significant difference was found between the GDM and control groups regarding the genotypic or allelic frequencies of rs174575 and rs2845574 sites (P > 0.05). Among the GDM group, individuals with the GG genotype at the rs174575 site had lower plasma HDL-C levels compared to those with the CC genotype (P < 0.05), and had higher atherogenic indices (AI) compared with the CC and CG genotype (P < 0.05; P < 0.05). Individuals with the TT genotype at the rs2845574 site had higher AI compared with the CT genotype (P < 0.05). Among the control group, individuals with the GG genotype had lower diastolic blood pressure (DBP) compared to those with the CC genotype (P < 0.05). Additional subgroup analysis demonstrated that the rs174575 polymorphism was associated with AI levels in obesity subgroup of GDM, TG levels in non-obese subgroup of control and DBP levels in the obese subgroup of control (P < 0.05; P < 0.05; P < 0.05).
CONCLUSION
The FADS2 rs174575 and rs2845574 polymorphisms in GDM patients are associated wit HDL-C and AI levels, and the FADS2 rs174575 polymorphisms was also associated with DBP levels in normal pregnant women. The AI and DBP levels have a BMI-dependent effect.
Humans
;
Female
;
Pregnancy
;
Fatty Acid Desaturases/genetics*
;
Polymorphism, Single Nucleotide
;
Adult
;
Diabetes, Gestational/blood*
;
Blood Pressure/genetics*
;
Lipids/blood*
;
Genotype
;
Genetic Predisposition to Disease
10.The association of blood type among pregnant women aged 25-34 at the University of Santo Tomas Hospital - Clinical Division Outpatient Department in the development of gestational diabetes mellitus (GDMM) - Study protocol.
Vincent Enrico A. ONG ; Franchezka Marie P. NAPAY ; Samantha Marie L. NAVARRO ; Daniella Faye T. NGO ; Victor Orlando D. OCAMPO ; Gwyneth S. OLEGARIO ; Hexiqyl B. ONG ; Christienne Chelito E. ONZA ; Andrea Gwyneth S. ORO ; Jose Emmanuel M. PACHECO
Journal of Medicine University of Santo Tomas 2025;9(S1):100-104
This study aims to establish the potential association between ABO blood type among pregnant women (25-34 years old) at the University of Santo Tomas Hospital - Clinical Division Outpatient Department in the development of gestational diabetes mellitus (GDM). GDM, a prevalent condition during pregnancy, stems from the placenta producing hormones that impede insulin utilization in the body. This research seeks to ascertain whether maternal blood type correlates with the incidence of GDM, utilizing 24-
28 week 75 g OGTT (Oral Glucose Tolerance Test) as the diagnostic tool for GDM determination. Given the acknowledged genetic link between blood type and diabetes predisposition, genetic factors will be accounted for as potential confounders. Other variables such as maternal age, demographics and prior GDM history will also be considered due to their potential influence on GDM. The study employs a retrospective cross-sectional study with qualitative and quantitative analysis. It focuses on pregnant women’s GDM development as the outcome, assessed concerning maternal blood type as the exposure. Utilizing a retrospective approach, past records of Filipino pregnant women aged 25 to 34 residing in the Philippines will be analyzed. Inclusion criteria encompassed Filipino citizenship, current residency in the Philippines, age between 25 and 34 years, a normal first trimester BMI (18.5-22.9 kg/m2) and normal HbA1c levels (4.0%-5.6%). Exclusion criteria involved pregnant women with more than five births, a family history of diabetes mellitus and a history of polycystic ovary syndrome (PCOS). Conducted at the University of Santo Tomas Hospital - Clinical Division Outpatient Department, this research aims to determine if ABO blood type predisposes mothers to GDM, potentially offering preventive measures against associated complications such as post pregnancy diabetes mellitus and fetal complications.
Human
;
Female
;
Adult: 25-44 Yrs Old
;
Aged
;
Diabetes Mellitus
;
Diabetes, Gestational
;
Hospitals
;
Pregnant Women
;
Universities
;
Women


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