Metformin versus insulin in the management of gestational diabetes mellitus: A meta‑analysis / Philippine Journal of Obstetrics and Gynecology

Objective@#To determine the efficacy of metformin and insulin in the management of gestational diabetes mellitus (GDM). @*Methodology@#Randomized controlled trials (RCT) were retrieved from the databases. All references cited in the articles were also searched by hand to identify additional publications. Studies included were limited to trials on metformin and insulin in the management of GDM in singleton pregnancies. Four RCTs were analyzed in the study. The risk of bias was assessed using Preferred Reporting Items for Systematic reviews and Meta-Analyses Cochrane Collaboration’s tool (Rob 2). Random effects meta-analysis was carried out to pool the data. All analyses were conducted in Review Manager 5.3.5 (2014). @*Results@#Meta-analysis of four RCT involving 807 participants (405 were treated with metformin and 402 were treated with insulin) shows that there was no significant difference between metformin and insulin in achieving glycemic control as to fasting blood sugar (FBS), postprandial blood glucose (PPBG), and glycosylated hemoglobin, mean difference (MD) −0.43 (95% confidence interval [CI] −2.77–1.91; P = 0.72), MD −2.13 (95% CI −5.16–0.90, P = 0.17), MD −0.09 (95% CI −0.20–0.02, P = 0.10), respectively. For maternal outcomes, there was a statistically significant 69% decreased risk of hypoglycemia in the metformin group (risk ratio [RR] 0.31, 95% CI 0.20–0.49; P < 0.001). There was no difference in terms of risk of preterm birth (RR 1.11, 95% CI 0.75–1.64, P = 0.60); hypertensive disorders (RR 1.06, 95% CI 0.71–1.60, P = 0.77); polyhydramnios (RR 1.04, 95% CI 0.51–2.14, P = 0.91); and risk of cesarean delivery (RR 0.90, 95% CI 0.75–1.08, P = 0.27). For neonatal outcomes, there was statistically significant 34% reduction on the risk of neonatal hypoglycemia (RR 0.66, 95% CI 0.46–0.94; P = 0.02) in the metformin group. There was no statistical difference in terms of mean birthweight (MD − 81.34, 95% CI −181.69–19.02, P = 0.11). Metformin has decreased the risk of newborns weighing more than 4000 g, babies with birthweight >90th percentile by 27% (RR 0.73, 95% CI 0.28–1.90, P = 0.52), and 20% (RR 0.80, 95% CI 0.54–1.18,P = 0.26), respectively, but these were not statistically significant. There was no significant difference in terms of risk of birthweight <10th percentile (RR 1.17, 95% CI 0.60–2.31, P = 0.65); APGAR <7 (RR 1.17, 95% CI 0.65–2.08, P = 0.60), birth trauma (RR 0.77, 95% CI 0.23–2.58, P = 0.67), and jaundice requiring phototherapy RR 1.04, 95% CI 0.66–1.65, P = 0.85). Neonatal intensive care unit admission (RR 0.89, 95% CI 0.64–1.23, P = 0.48), respiratory distress syndrome (RR 0.73, 95% CI 0.36–1.50, P = 0.39), transient tachypnea (RR 0.78, 95% CI 0.27–2.19, P = 0.63), and any congenital anomaly (RR 0.58, 95% CI 0.20–1.67, P = 0.31) were decreased in the metformin group but was not statistically significant. @*Conclusion@#There was no significant difference between metformin and insulin in achieving glycemic control as to FBS and PPBG among patients with GDM. There was a statistically significant reduction in the risk of maternal and neonatal hypoglycemia in the use of metformin.

Enhancing gestational diabetes management in Filipino patients: Evaluating the impact of education on knowledge, attitude, and pregnancy outcomes at a Tertiary Medical Center

Introduction@#Patient education is integral in the management of gestational diabetes mellitus (GDM), a common pregnancy complication that may cause adverse perinatal outcomes. This study evaluated the effect of diabetes education on the knowledge and attitude among patients with GDM, comparing pre- vs post-diabetes session scores and determining pregnancy outcomes.@*Methodology@#A one-group pre-test and post-test experimental design study was conducted on 75 patients after one- session diabetes counseling using the Gestational Diabetes Mellitus Knowledge Questionnaire (GDMKQ) and the third version of the Diabetes Attitude Scale (DAS-3).@*Results@#Of the 75 subjects, 84% exhibited adequate knowledge of diabetes. Post-education, a significant increase in the total scores was seen among those less than 35 years of age (p-value: 0.003), both employed and unemployed (p-value: 0.0.026, 0.047, respectively), with a secondary level of education (p-value: 0.014) and multigravid (p-value: 0.015). An overall median positive attitude score of 3.6 was documented. For neonatal outcomes, no adverse events existed. For maternal outcomes, 17.9% had elevated fasting blood glucose while 7.1% had elevated 2-hour post-glucose tolerance test.@*Conclusion@#Diabetes education improves patient’s knowledge but not their attitude. Hence, improvement in attitude interventions should be incorporated into the current diabetes education program.

Desfechos neonatais adversos e fatores associados entre gestantes com diabetes mellitus gestacional e de risco habitual / Neonatal adverse outcomes and associated factors among pregnant women with gestational and usual risk of diabetes mellitus

Objetivo: Avaliar os desfechos neonatais adversos e fatores associados entre gestantes com diabetes mellitus gestacional e de risco gestacional habitual. Métodos: Estudo transversal, de âmbito nacional e de base hospitalar, conduzido entre fevereiro de 2011 e outubro de 2012. Foram excluídas as mulheres com gestações múltiplas ou natimortos. As informações foram coletadas via questionário padronizado, cartão de pré-natal e/ou prontuário. Resultados: Das 12.712 puérperas avaliadas, 1.915 tinham diabetes mellitus gestacional e 10.797 foram classificadas em risco gestacional habitual. Verificou-se que 74,1% das mulheres com diabetes receberam assistência pré-natal adequada/mais que adequada em relação a 65% das mulheres com risco gestacional habitual. Em contrapartida, o grupo das mulheres com diabetes foi composto em sua maioria por mulheres acima de 35 anos, com hipertensão prévia, excesso de peso pré-gestacional e ganho de peso gestacional excessivo, multíparas, com histórico de cesárea e abortos. Os desfechos "prematuridade" e "nascimento de recém-nascido grande para idade gestacional" foram superiores entre as mulheres com diabetes. Conclusão: As mulheres com diabete detiveram condições demográficas, antecedentes clínicos/obstétricos e desfechos neonatais mais desfavoráveis em relação às mulheres de risco gestacional habitual. Apesar disso, o pré-natal foi um dos fatores que exerceu extrema importância para que outros desfechos negativos (óbito neonatal e o Apgar<5) não fossem superiores entre as mulheres com diabete sem relação às de risco gestacional habitual. Portanto, reitera-se o papel do pré-natal entre as mulheres brasileiras, sobretudo as de alto risco gestacional.

Objective: To assess adverse neonatal outcomes and associated factors between pregnant women with gestational diabetes mellitus and usual gestational risk. Methods: Cross-sectional, nationwide, hospital-based study, conducted from February 2011 to October 2012. Women with multiple pregnancies or stillbirths were excluded. Information was collected using a standardized questionnaire, prenatal card and/or medical records. Results: Out of a total of 12,712 postpartum women evaluated, 1,915 had gestational diabetes mellitus and 10,797 were classified as usual gestational risk. It was observed that 74.1% of diabetics received adequate/more than adequate prenatal care compared to 65% of women with usual gestational risk. On the other hand, the group of diabetics was composed mostly of women over 35 years of age, with underlying hypertension, pre-gestational excess weight and excess gestational weight gain who were multiparous, with history of cesarean deliveries and abortions. The outcomes of "prematurity" and "birth of large-sized newborn" for the gestational age were higher among diabetics. Conclusion: Diabetic women had more unfavorable demographic conditions, clinical/obstetric history and neonatal outcomes compared to women with usual gestational risk. Nevertheless, prenatal care was a factor of extreme importance to prevent other negative outcomes (neonatal death and Apgar <5) to increase among diabetic women compared to those with usual gestational risk. Therefore, the role of prenatal care among Brazilian women is reiterated, especially among the high gestational risk women.

Características de la descendencia de gestantes diabéticas atendidas en el Hospital "Comandante Ciro Redondo García", Artemisa / Characteristics of the Offspring of Pregnant Women Who Received Attention in the Hospital Comandante Ciro Redondo García, of Artemisa

Introducción: Múltiples investigaciones demuestran el efecto teratogénico de la diabetes mellitus durante el embarazo, considerada causa frecuente de morbilidad fetal. Objetivo: Describir las características del producto de la concepción de mujeres con diabetes pregestacional o gestacional, atendidas en el Hospital Provincial Comandante Ciro Redondo García, de Artemisa. Métodos: Se realizó un estudio observacional, descriptivo, transversal, en la Provincia Artemisa, Cuba, en el período de febrero 2016 a febrero 2018, en 316 mujeres con diabetes mellitus durante su gestación. La información se obtuvo mediante revisión documental y entrevista, conservando los datos en hoja de cálculo Excel. Resultados: El 69,9 por ciento de las pacientes diabéticas estudiadas presentaron morbilidades en su descendencia, entre las que predominaron los defectos congénitos en 139 casos; 34 neonatos macrosómicos; 21 pretérminos; 9 con retardo del crecimiento intrauterino y 5 fallecidos antes del año de vida. La diabetes, tanto pregestacional como gestacional, se relacionó con afecciones en la descendencia; sin embargo, un control preconcepcional adecuado de la enfermedad redujo el riesgo de tener hijos afectados. Los defectos congénitos fueron la alteración más frecuente cuando la madre padecía diabetes pregestacional. Si la diabetes materna era gestacional los hijos presentaron con frecuencia macrosomía y otras anomalías asociadas. Conclusiones: Alrededor de 70 de cada 100 mujeres diabéticas presentan morbilidades en su descendencia. Si la diabetes materna no es controlada antes de la concepción, estas morbilidades en sus hijos son predominantemente defectos congénitos con posible origen disruptivo, mientras que la diabetes gestacional se relaciona más con recién nacidos macrosómicos(AU)

Introduction: Multiple investigations show the teratogenic effect of diabetes mellitus during pregnancy, being considered a frequent cause of fetal morbidity. Objective: To describe the characteristics of the offspring of women with pregestacional or gestational diabetes who received attention at the Hospital Provincial Comandante Ciro Redondo García of Artemisa. Methods: An observational, descriptive, cross-sectional and descriptive study was conducted in Artemisa Province, Cuba, in the period from February 2016 to February 2018, with 316 pregnant women with diabetes mellitus. The information was obtained through documentary review and interview; the data were kept in an Excel spreadsheet. Results: 69.9 percent of the studied diabetic patients presented morbidities in their offspring, among which congenital defects predominated, accounting for 139 cases; 34 were macrosomic neonates; 21 were preterm; 9 presented intrauterine growth retardation; and 5 died within one year of life. Diabetes, both pregestational and gestational, was associated with conditions in the offspring; however, adequate preconception control of the disease reduced the risk for having affected children. Congenital defects were the most frequent alteration when the mother had pregestational diabetes. If maternal diabetes was gestational, the offspring frequently presented macrosomia and other associated anomalies. Conclusions: About 70 out of 100 diabetic women present morbidities in their offspring. If maternal diabetes is not controlled before conception, these morbidities in their offspring are predominantly congenital defects with a possible disruptive origin, while gestational diabetes is more related to macrosomic newborns(AU)

Factores de riesgo psicosocial asociados con la diabetes mellitus gestacional: revisión sistemática / Psychosocial risk factors associated with gestational diabetes mellitus: systematic review

La diabetes mellitus gestacional DMG es una enfermedad con consecuencias mortales, incapacitantes y costosas para las personas, las familias, las comunidades y los países. Con el fin de establecer de manera sistemática los factores de riesgo psicosocial asociados con la DMG que deberían ser monitoreados durante y después del embarazo se realizó una revisión sistemática en las bases de datos PubMed/Medline y Cochrane. Se encontraron 1188 artículos y se seleccionaron 41. Algunos temas principales fueron conflictos con prácticas culturales, estigma social, influencia de la etnia/raza, bajo nivel educativo, calidad del sueño, problemas con la lactancia materna, preocupación por la propia salud o la del bebé, baja percepción de riesgo de DMG o de diabetes mellitus tipo 2 en el futuro, estrés, ansiedad y depresión, conocimiento limitado, falta de apoyo de la pareja, de la familia o social y de los profesionales de la salud, bajos niveles de autocuidado/autoeficacia y dificultades con cambios en el estilo de vida. Estos factores deberían monitorearse en las embarazadas durante y después del parto. Los tratamientos deberían considerar el impacto psicológico y el riesgo de desarrollar diabetes mellitus tipo 2 después del parto, y deberían ser incluidos en las guías de práctica clínica. Las poblaciones multiétnicas y los grupos más vulnerables demográficamente y socioeconómicamente son más susceptibles de desarrollar DMG.

Gestational diabetes mellitus (GDM) is a disease with fatal, disabling, and costly consequences for individuals, families, communities and countries. To systematically establish the psychosocial risk factors associated with GDM that should be monitored during and after pregnancy. Systematic review in PubMed/Medline and Cochrane databases. 1188 articles were found and 41 were selected. Some main themes were conflicts with cultural practices, social stigma, ethnicity/race influence, low educational level, sleep quality, breastfeeding problems, concern for ones own health/baby, low perception of the risk of GDM/DM2 in the future, stress, anxiety and depression, limited knowledge, lack of support from the partner/family/social and health professionals, low levels of self-care/self-efficacy and difficulties with changes in the lifestyle. These factors should be monitored in pregnant women during and after delivery. Treatments should consider the psychological impact and the risk of developing DM2 after childbirth and should be included in clinical practice guidelines. Multi-ethnic populations and the most demographically and socioeconomically vulnerable groups are more susceptible to developing GDM.

Biochemical analysis of oxidative stress and purinergic system in pregnant women with gestational diabetes mellitus / Análise bioquímica do estresse oxidativo e do sistema purinérgico em gestantes com diabetes mellitus gestacional

Background: Pregnancy is characterized as a physiological period with greater sensitivity to insulin resistance and changes in oxidative stress. Purinergic signaling is directly related to diabetes, as this condition modifies the concentration of extracellular ATP and the level of degradation of ATP to adenosine. Objective: Analyze oxidative stress and the purinergic system in pregnant women with Gestational Diabetes Mellitus (GDM) and compare them with low-risk pregnant women (LR). Materials and Methods: The research was of a quantitative approach of an experimental nature. The study was carried out at the Clínica da Mulher, which serves high-risk pregnant women, and at the Family Health Centers, which serves low-risk pregnant women, both located in Chapecó, Santa Catarina, Brazil. Results: From the analysis, it was observed that oxidative stress was increased in pregnant women in LR compared to pregnant women with GDM by increasing the concentration of TBARS and reducing the concentration of Carbonyl Protein in pregnant women with LR. Regarding the purinergic system, there was a significant decrease in the hydrolysis of the nucleotides ATP, ADP, and AMP in pregnant women with GDM, and a significant increase in the hydrolysis of ADA, also in pregnant women with GDM. Conclusion: Therefore, pregnant women with GDM have less oxidative stress compared to pregnant women in LR concerning TBARS and Carbonyl Protein markers, thus allowing a greater antioxidant defense mechanism. Furthermore, concerning the purinergic system, there is an increase in the activity of ADA, which is directly related to the immunosuppression process, a necessary condition for the protection of the fetus during the gestational period (AU).

Introdução: A gravidez é caracterizada como um período fisiológico em que há uma maior sensibilidade a resistência à insulina e alterações no estresse oxidativo. A sinalização purinérgica está diretamente relacionada ao diabetes, pois esta condição modifica a concentração de ATP extracelular e o nível de degradação de ATP em adenosina. Objetivo:Analisar o estresse oxidativo e o sistema purinérgico em gestantes com Diabetes Mellitus Gestacional (DMG) e compará-los com gestantes de baixo risco (BR). Materiais e Métodos: A pesquisa foi de abordagem quantitativa, de caráter experimental. O estudo foi realizado na Clínica da Mulher, que atende gestantes de alto risco, e nas Unidades de Saúde da Família, que atendem gestantes de baixo risco, ambas localizadas no município de Chapecó, Santa Catarina, Brasil. Resultados: A partir das análises, observou-se que o estresse oxidativo apresentou-se aumentado em gestantes de BR quando comparado a gestantes com DMG. No que tange ao sistema purinérgico, houve uma diminuição significativa na hidrólise dos nucleotídeos ATP, ADP e AMP em gestantes com DMG, bem como um aumento significativo na hidrólise de ADA, também em gestantes com DMG. Conclusão: Portanto, gestantes com DMG possuem menor estresse oxidativo quando comparado a gestantes de BR, permitindo assim, um maior mecanismo de defesa antioxidante. Para mais, no que se refere ao sistema purinérgico, verifica-se o aumento da concentração de ADA está diretamente relacionada ao processo de imunossupressão, condição necessária à proteção do feto durante o período gestacional (AU).

Quality of Life and Depression Conditions of Women with Gestational Diabetes during Pregnancy and Postpartum Period / Qualidade de vida e condições de depressão em mulheres com diabetes gestacional durante a gravidez e o período pós-parto

Abstract Objective The study was conducted to determine the quality of life and depression of women with gestational diabetes during pregnancy and the postpartum period. Methods 100 pregnant women with gestational diabetes and 100 healthy pregnant women were included in the present study. Data were obtained from pregnant women in their third trimester who agreed to take part in the study. The data was collected during the third trimester and six to eight weeks after the baby was born. The data were obtained by socio-demographic characteristics form, postpartum data collection form, the MOS 36 Item Short Form Health Survey and Center for Epidemiologic Studies Depression Scale (CESD). Results The mean age of pregnant women with gestational diabetes in the study was the same as the average age of healthy pregnant women. The CESD score of pregnant women with gestational diabetes was 26,77 ± 4,85 while the corresponding score was 25,19 ± 4,43 for healthy women. Additionally, the score in the postpartum period was 32.47 ± 5.94 for pregnant women with gestational diabetes and 35.47 ± 8.33 for healthy pregnant women. CESD scores were found to be higher than the cut-off score of 16 in both groups, and the mean scores increased during the postpartum period. Conclusion During the postpartum period, the quality of life of pregnant women with gestational diabetes was affected more negatively than healthy pregnant women. Depressive symptoms of women with both gestational diabetes and healthy pregnancy were found to be high in pregnancy and postpartum periods.

Resumo Objetivo O estudo foi realizado para determinar a qualidade de vida e depressão de mulheres com diabetes gestacional durante a gravidez e período pós-parto. Métodos 100 gestantes com diabetes gestacional e 100 gestantes saudáveis incluídas no presente estudo. Os dados foram obtidos de mulheres grávidas no terceiro trimestre que concordaram em participar do estudo. Os dados foram coletados durante o terceiro trimestre e seis a oito semanas após o nascimento do bebê. Os dados foram obtidos por meio do formulário de características sociodemográficas formulário de coleta de dados pós-parto MOS 36 Item Short Form Health Survey e Center for Epidemiologic Studies Depression Scale (CESD). Resultados A idade média das gestantes com diabetes gestacional no estudo foi igual à idade média das gestantes saudáveis. O escore CESD de gestantes com diabetes gestacional foi de 26 77 ± 4 85 enquanto o escore correspondente foi de 25 19 ± 4 43 para mulheres saudáveis. Além disso o escore no pós-parto foi de 32 47 ± 5 94 para gestantes com diabetes gestacional e 35 47 ± 8 33 para gestantes saudáveis. Os escores do CESD foram maiores do que o ponto de corte de 16 em ambos os grupos e os escores médios aumentaram durante o período pós-parto. Conclusão Durante o período pós-parto a qualidade de vida de gestantes com diabetes gestacional foi mais afetada negativamente do que gestantes saudáveis. Os sintomas depressivos de mulheres com diabetes gestacional e gravidez saudável foram elevados na gravidez e nos períodos pós-parto.

Research progress on the relationship between persistent organic pollutants and gestational diabetes / 中华预防医学杂志

Gestational diabetes mellitus(GDM)is one of the common complications during pregnancy. It is associated with many adverse pregnancy outcomes, threatening maternal and child health seriously. The exact pathogenesis of GDM remains unclear. Long term exposure to persistent organic pollutants (POPs) is considered to be one of the risk factors for GDM. More and more studies are concerned about the relationship between them. Based on the literature published at home and abroad, this article summarizes the correlation and possibly related mechanism of POPs and GDM, and explores the correlation between pops and GDM, so as to provide a new idea for the prevention of gestational diabetes.

Research progress on the relationship between air pollution and gestational diabetes / 中华预防医学杂志

Gestational diabetes mellitus (GDM) is one of the most common pregnancy complications and has serious implications for the health of mothers and their offspring. In recent years, studies have confirmed that air pollution is one of the main risk factors for diabetes, and there is increasing evidence that air pollution exposure is closely related to the occurrence of gestational diabetes. However, current studies on the association between air pollutant exposure and the incidence of gestational diabetes are inconsistent, and the window period of pollutant exposure is still unclear. Limited mechanistic studies suggest that airborne particulate matter and gaseous pollutants may affect GDM through multiple mechanisms, including inflammation, oxidative stress, disruption of adipokine secretion, and imbalance of intestinal flora. This review summarizes the relationship between air pollutant exposure and the incidence of GDM in recent years, as well as the possible molecular mechanism of the occurrence and development of GDM caused by air pollutants, in order to provide scientific basis for preventing pollutant exposure, reducing the risk of GDM, improving maternal and fetal outcomes and improving the quality of the birth population.

Maternal and neonatal outcomes among women with gestational diabetes mellitus treated with metformin in a tertiary hospital: A retrospective cohort study

Background@#Gestational diabetes mellitus (GDM) is a common disorder associated with both maternal and fetal complications. Treatment for GDM requires lifestyle modification, as well as insulin and oral anti-diabetes medications to prevent unwarranted fetal and maternal outcomes.@*Objective@#To determine the feto-maternal outcomes of GDM patients treated with either metformin-monotherapy, insulin- monotherapy, and with insulin plus metformin (combination) therapy in a private tertiary hospital in Metro Manila.@*Methods@#This is a retrospective cohort study involving 209 GDM patients admitted from January 2017 to December 2019. Census and chart reviews were done for demographic and clinical data. These were divided into 3 groups: metformin-monotherapy, insulin-monotherapy, and combination treated groups. Analysis of Variance was used to compare the average capillary blood glucose (CBG) levels of patients. Chi-square and Fisher’s Exact tests were used for nonparametric data.@*Results@#Birthweight was significant across all groups: metformin-monotherapy group highest with large-for-gestational- age (LGA) at 25%, small-for-gestational-age (SGA) highest on the insulin-monotherapy group (11.3%) and appropriate-for- gestational-age (AGA) highest in the combination therapy group (84.6%). Age of gestation (AOG) at delivery (p=0.005), maternal CBG during labor (p=0.007), and chronic hypertension (p=0.001) were statistically significant across all groups. Multiple comparisons showed the following statistically significant results as well: chronic hypertension between metformin and combination group (p <0.01), AOG during delivery between metformin vs insulin group (p=0.004), maternal CBGs during labor between metformin vs insulin group (p=0.022), and insulin vs combination treatment group (p=0.029). Average maternal CBG levels were also showed statistically significant difference between the metformin vs insulin group (p=0.029).@*Conclusion@#Metformin may be used in controlling CBG levels in GDM patients. Although metformin may be comparable to insulin, more long-term studies need to be done to determine its long-term effects on neonates.

The efficacy and safety of myo-inositol supplementation for the prevention of gestational diabetes mellitus in overweight and obese pregnant women: A systematic review and meta-analysis / Journal of the ASEAN Federation of Endocrine Societies

Background@#Myo-inositol has emerged as one of the preventive therapies for the development of gestational diabetes mellitus in at-risk populations. This systematic review and meta-analysis was conducted to determine the efficacy and safety of myo-inositol in decreasing the incidence of gestational diabetes in overweight and obese pregnant women.@*Methodology@#This meta-analysis was conducted using the standard Cochrane methodology and reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) 2020 guidelines. Inclusion criteria were randomized controlled trials (RCTs) that enrolled overweight and obese pregnant women and used myo-inositol supplementation. The primary outcome was the incidence of gestational diabetes mellitus at 24-28 weeks. Secondary outcomes included cesarean section rate, the incidence of pregnancy-induced hypertension, macrosomia and preterm delivery. Risk ratios (RRs) and 95% confidence intervals (CIs) were used for dichotomous data.@*Results@#Six RCTs were included. Compared to standard micronutrient supplementation, standard dose of myo-inositol (4 g) may reduce the incidence of GDM (RR 0.54; CI [0.30, 0.96]; n = 887 women), but the certainty of evidence is low to very low. With low-dose myo-inositol however, evidence is uncertain about its benefit on the incidence of gestational diabetes mellitus in overweight and obese women with RR 0.71; CI [0.14, 3.50]. No adverse effects were noted. For the secondary outcomes, standard dose myo-inositol appears to reduce the incidence of pregnancy-induced hypertension and preterm delivery, but the certainty of evidence is low to very low.@*Conclusion@#Current evidence is uncertain on the potential benefit of myo-inositol supplementation in overweight and obese pregnant women. While studies show that 4 g myo-inositol per day may decrease the incidence of GDM, pregnancy-induced hypertension and pre-term birth with no associated risk of serious adverse events, the certainty of evidence is low to very low. Future high-quality trials may provide more compelling evidence to support practice recommendations.

Relationships between hypertensive disorders in pregnancy and obstructive sleep apnea syndrome / 中华妇产科杂志

Objective: To investigate the impact of obstructive sleep apnea syndrome (OSAS) on pregnancy outcomes, especially the relationship between OSAS and hypertensive disorders in pregnancy (HDP). Methods: A total of 228 pregnant women with high risk of OSAS who underwent sleep monitoring during pregnancy in Peking University People's Hospital from January 2021 to April 2022 were collected by reviewing their medical records for retrospective analysis. According to the diagnosis of OSAS, the pregnant women were divided into OSAS group (105 cases) and non-OSAS group (123 cases). The non-parametric Mann-Whitney U test, χ2 test or Fisher's exact test were used to compare the general data and maternal and fetal outcomes between the two groups, and the occurrence of each type of HDP was further compared. Results: (1) Compared with the non-OSAS group, the median pre-pregnancy body mass index (23.6 vs 27.6 kg/m2) and the proportion of snoring [28.9% (33/114) vs 59.2% (61/103)] in the OSAS group were higher, and the differences were both statistically significant (both P<0.001). (2) The incidence of HDP [67.6% (71/105) vs 39.0% (48/123)] and gestational diabetes mellitus [GDM; 40.0% (42/105) vs 26.8% (33/123)] of pregnant women in the OSAS group were higher than those in the non-OSAS group, and the median delivery week was shorter than that in the non-OSAS group (38.4 vs 39.0 weeks). The differences were all statistically significant (all P<0.05). Between-group differences for the delivery way, postpartum hemorrhage, the rate of intensive care unit admission, preterm birth, small for gestational age infants, neonatal asphyxia, the rate of neonatal intensive care unit admission, newborn birth weight and the proportion of umbilical artery blood pH<7.00 were not statistically significant (all P>0.05). (3) Compared with the non-OSAS group, the incidence of chronic hypertension [11.4% (14/123) vs 22.9% (24/105)] and chronic hypertension with superimposed pre-eclampsia [11.4% (14/123) vs 30.5% (32/105)] were higher in the OSAS group, and the differences were both statistically significant (both P<0.01). Conclusion: OSAS is related to HDP (especially chronic hypertension and chronic hypertension with superimposed pre-eclampsia) and GDM, which could provide a practical basis for the screening, diagnosis and treatment of OSAS in pregnant women at high risk.

Role of melatonin receptor 1B gene polymorphism and its effect on the regulation of glucose transport in gestational diabetes mellitus / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

Melatonin receptor 1B (MT2, encoded by the MTNR1B gene), a high-affinity receptor for melatonin, is associated with glucose homeostasis including glucose uptake and transport. The rs10830963 variant in the MTNR1B gene is linked to glucose metabolism disorders including gestational diabetes mellitus (GDM); however, the relationship between MT2-mediated melatonin signaling and a high birth weight of GDM infants from maternal glucose abnormality remains poorly understood. This article aims to investigate the relationship between rs10830963 variants and GDM development, as well as the effects of MT2 receptor on glucose uptake and transport in trophoblasts. TaqMan-MGB (minor groove binder) probe quantitative real-time polymerase chain reaction (qPCR) assays were used for rs10930963 genotyping. MT2 expression in the placenta of GDM and normal pregnant women was detected by immunofluorescence, western blot, and qPCR. The relationship between MT2 and glucose transporters (GLUTs) or peroxisome proliferator-activated receptor γ (PPARγ) was established by western blot, and glucose consumption of trophoblasts was measured by a glucose assay kit. The results showed that the genotype and allele frequencies of rs10830963 were significantly different between GDM and normal pregnant women (P<0.05). The fasting, 1-h and 2-h plasma glucose levels of G-allele carriers were significantly higher than those of C-allele carriers (P<0.05). Besides, the protein and messenger RNA (mRNA) expression of MT2 in the placenta of GDM was significantly higher than that of normal pregnant women (P<0.05). Melatonin could stimulate glucose uptake and GLUT4 and PPARγ protein expression in trophoblasts, which could be attenuated by MT2 receptor knockdown. In conclusion, the rs10830963 variant was associated with an increased risk of GDM. The MT2 receptor is essential for melatonin to raise glucose uptake and transport, which may be mediated by PPARγ.

Factors influencing thrombelastography in pregnancy / 中南大学学报(医学版)

OBJECTIVES@#The number of gestational women has been increased in recent years, resulting in more adverse pregnancy outcomes. It is crucial to assess the coagulation function of pregnant women and to intervene in a timely manner. This study aims to analyze the influencing factors on thrombelastography (TEG) and explore the evaluation of TEG for gestational women.@*METHODS@#A retrospective study was conducted on 449 pregnant women who were hospitalized in the obstetrics department in Xiangya Hospital of Central South University from 2018 to 2020. We compared the changes on the TEG parameters among normal pregnant women between different age groups, different ingravidation groups, and different stages of pregnancy groups. The influence on TEG of hypertensive disorders in pregnancy (HDP) and gestational diabetes mellitus (GDM) as well as two diseases synchronization was explored.@*RESULTS@#Compared with the normal second trimester women, the R values and K values of TEG were increased, and α angle, CI values and LY30 values were decreased in third trimester women (all P<0.05). Compared with normal group, the R values and CI values of TEG of the HDP group have significant difference (both P<0.05). There were no significant difference of TEG between the GDM group, the HDP combined with GDM group and the normal group (all P>0.05). Multiple linear regression analysis showed that the influencing factors for R value in TEG were weeks of gestation (P<0.001) and mode of conception (P<0.05), for α angle was weeks of gestation (P<0.05), for MA value was mode of conception (P<0.05), and for CI value was weeks of gestation (P<0.05). The analysis of correlation between TEG with platelet (PLT) and coagulation routines represented that there was a correlation between TEG R values and activated partial thromboplastin time (APTT) (P<0.01), and negative correlation between TEG CI values and APTT (P<0.05). There was a negative correlation between TEG K values and FIB (P<0.05). The correlation of α angle (P<0.05), MA values (P<0.01) and CI values (P<0.05) with FIB were positive respectively.@*CONCLUSIONS@#The TEG parameters of 3 stages of pregnancy were different. The different ingravidation approach has effect on TEG. The TEG parameters were consistent with conventional coagulation indicators. The TEG can be used to screen the coagulation status of gestational women, recognize the abnormalities of coagulation and prevent the severe complication timely.

Orientação nutricional como forma preventiva do diabetes mellitus gestacional e hipertensão gestacional: influência das escolhas alimentares / Nutritional guidance as a preventive measure for gestational diabetes mellitus and gestational hypertension: the influence of food choices

O Diabetes Mellitus Gestacional (DMG) e a Hipertensão Gestacional (HG) são duas comorbidades que podem ocorrer durante o período gestacional, acarretando expressiva morbimortalidade materno-fetal, com relevância mundial. Na gestação ocorrem algumas modificações fisiológicas no organismo, aumentando a necessidade de mais nutrientes essenciais e sendo a orientação nutricional mais efetiva quando há nutricionista na equipe multidisciplinar. Objetivo: Investigar a importância da orientação nutricional como forma preventiva do DMG e da HG. Métodos: estudo retrospectivo, com 40 gestantes, de 18 a 39 anos, atendidas no ambulatório de nutrição do pré-natal do IFF/Fiocruz no ano de 2019. Resultados: Há associação entre o estado nutricional de excesso de peso e um ganho de peso gestacional superior ao adequado, associação entre excesso de peso e DMG e entre excesso de peso e HG. A dieta das gestantes quando ingressaram no ambulatório de nutrição do pré-natal estava inadequada em vários nutrientes relevantes para o controle das patologias estudadas. Conclusão: É necessário investir num retorno das gestantes a maior quantidade de consultas nutricionais, de forma que se sintam acolhidas e engajadas, visando a diminuição da prevalência do DMG e da HG.(AU)

Gestational Diabetes Mellitus (GDM) and Gestational Hypertension (HG) are comorbidities that can occur during the gestational period, leading to significant maternal-fetal morbidity and mortality, with worldwide relevance. During pregnancy, some physiological changes occur in the body, increasing the need for more essential nutrients and being the most effective nutritional guidance when the nutritionist is part of the multidisciplinary team. Objective: To investigate the importance of nutritional guidance as a preventive form of GDM and HG. Methods: retrospective study with 40 pregnant women, aged 18 to 39 years, attended at the IFF/Fiocruz prenatal nutrition outpatient clinic in 2019. Results: Inferences of the associations of nutritional status of overweight and gestational weight gain greater than adequate; overweight and GDM; overweight and HG. The diet of pregnant women when they entered the prenatal nutrition outpatient clinic was inadequate in several nutrients considered relevant for the control of indicated pathologies. Conclusion: It is emphasized the relevance in the return of pregnant women to nutritional consultations so that they feel welcomed, minimizing the prevalence of GDM and HG.(AU)

Influence of alcohol and tobacco consumption on maternal and perinatal outcomes of puerperal women attended at the Brazilian National Health System / Influência do consumo de álcool e tabaco em desfechos maternos e perinatais de puérperas atendidas no Sistema Único de Saúde

Abstract Objectives: to evaluate the association between alcohol and tobacco consumption during pregnancy with maternal and child health conditions. Methods: cross-sectional study with a probabilistic sample of pregnant women living in Santa Catarina who conducted prenatal care and childbirth in the public national health service in 2019. A face-to-face survey questionnaire was applied to 3,580 pregnant women including maternal health issues during pregnancy and perinatal health of the newborn. Crude logistic regression analyzes were performed and adjusted for socio-demographic and maternal health conditions. Results: the prevalence of alcohol and tobacco consumption during pregnancy was 7.2% and 9.3%, respectively. Alcohol consumption during pregnancy increased the chance of maternal anemia by 45% (CI95%=1.09-1.91), increased the chance of gestational diabetes by 73% (CI95%=1.14-2.63) and reduced the chance of hypertension (OR=0.59; CI95%=0.37-0.94). Tobacco consumption doubled the chance of low birth weight (OR=2.16; CI95%=1.33-3.51). Conclusion: the consumption of alcoholic beverages during pregnancy increased the chance of maternal health complications, such as anemia and gestational diabetes, while tobacco increased the chance of low birth weight.

Resumo Objetivos: avaliar a associação entre o consumo de álcool e de tabaco durante a gravidez com condições de saúde maternas e da criança. Métodos: estudo transversal com amostra probabilística de gestantes residentes em Santa Catarina que realizaram o pré-natal e o parto na rede pública do estado em 2019. Foi aplicado questionário face-a-face com 3.580 gestantes incluindo questões de saúde maternas durante a gestação e saúde perinatal do recém-nascido. Foram realizadas análises de regressão logística brutas e ajustadas para condições sócio-demográficas e de saúde maternas. Resultados: as prevalências de consumo de bebidas alcoólicas e de tabaco durante a gestação foram de 7,2% e 9,3%, respectivamente. O consumo de álcool durante a gestação aumentou em 45% a chance de anemia materna (IC95%=1,09-1,91) e em 73% a de diabetes gestacional (IC95%=1,14-2,63) e reduziu a chance de hipertensão (OR=0,59; IC95%=0,37-0,94). O consumo de tabaco dobrou a chance de baixo peso gestacional ao nascer (OR=2,16; IC95%=1,33-3,51). Conclusão: o consumo de bebidas alcoólicas durante a gestação aumentou a chance de intercorrências de saúde maternas, como anemia e diabetes gestacional, enquanto o tabaco aumentou a chance de baixo peso ao nascer.

The Effect of Mindfulness-Based Stress Reduction Counseling on Blood Glucose and Perceived Stress in Women with Gestational Diabetes / O efeito do aconselhamento para redução do estresse baseado na atenção plena sobre a glicose no sangue e o estresse percebido em mulheres com diabetes gestacional

Abstract Objective Gestational diabetes can cause maternal and neonatal morbidity. Psychological factors, especially stress, play a meaningful role in diabetes management. Therefore, the present study aimed to investigate the effect of Mindfulness-Based Stress Reduction counseling on blood sugar and perceived stress in women with gestational diabetes. Methods The present quasi-experimental interventional study was performed on 78 women with gestational diabetes. In the intervention group, a Mindfulness-Based Stress Reduction counseling program was conducted by the researcher in 8 sessions of 90 minutes twice a week. The Cohen stress questionnaire was filled in both groups. Also, fasting blood sugar and 2-hour blood sugar levels were measured in both groups. Statistical analysis was performed using the independent T-Test, the paired T-Test, the Mann-Whitney and Wilcoxon Tests using IBM SPSS Statistics for Windows version 20 version (IBM Corp., Armonk, NY, USA). Results The mean age of pregnant women in the intervention group was 28.84 ± 6.20 years old and 29.03 ± 5.42 years old in the control group. There was a significant mean difference between the fasting blood sugar score (p= 0.02; - 6.01; and - 11.46) and the 2-hour fasting blood sugar score (p< 0.001;12.35; and - 5.3) and the perceived stress score (p< 0.001; 35.57; and - 49.19) existed between the intervention and control groups after the intervention. Conclusion The results of the present study showed that mindfulness-based stress reduction counseling is effective in reducing blood sugar levels and reducing perceived stress in women with gestational diabetes treated with diet.

The effect of fruit consumption time on glucose regulation in pregnancy with gestational diabetes / O efeito do tempo de consumo de fruta na regulação da glicose na gravidez com diabetes gestacional

ABSTRACT Objective This study aims to determine the effect of fruit consumption time on blood glucose regulation in pregnant women with gestational diabetes. Methods The study was carried out with 64 volunteer participants diagnosed with gestational diabetes. Participants who were directed to the Department of Nutrition and Dietetics were divided into two groups according to the order of application; Group 1 was included in the nutrition treatment program for a week, consuming fruit for the main meal and Group 2 for the snack. During this process, the participants were applied a personalized nutrition plan that was adjusted equally for macronutrients of all meals containing isocaloric 3 main and 4 snacks. In this process, blood glucose values were measured six times a day by the participants and the blood glucose results of both groups before starting the nutrition therapy and on the seventh day after starting the medical nutrition therapy were compared. Results The mean age of the women participating in the study was 33.50±4.95 years and 32.28±5.18 years for the 1st and 2nd groups, respectively, and the groups were similar in terms of anthropometric measurements. The post-diet average of postprandial blood glucose levels in the morning within each group dropped from 180mg/d to 115mg/dL (p<0,001) for Group 1 and from 185mg/dL to 110mg/dL (p<0,001) for Group 2. There was a decrease in the fasting plasma glucose and postprandial blood glucose levels measured in the morning, noon and evening before and after the medical nutrition therapy of the groups, but no statistically significant difference was found between the groups (p>0.05). All participants on the gestational diabetes diet had normal blood sugar levels without the need for insulin. A statistically significant decrease was observed in the postprandial blood glucose-fasting plasma glucose difference levels of the pregnant women in the group that consumed fruit for snacks (Group 2) on the seventh day of the study (p<0,001). There was no significant difference in the pre-diet and post-diet morning fasting plasma glucose values of both groups (p>0,05). Conclusion This study found that medical nutrition therapy in pregnant women with gestational diabetes led to a decrease in blood glucose levels, but consuming fruits as a snack or at the main meal did not make a significant difference on fasting plasma glucose and postprandial blood glucose. It was concluded that the type and amount of carbohydrates consumed daily in gestational diabetes are determinative on blood glucose level.

RESUMO Objetivo O objetivo deste estudo é determinar o efeito do tempo de consumo de fruta na regulação da glucose no sangue em mulheres grávidas com diabetes gestacional. Métodos Este estudo foi realizado com 64 participantes voluntários diagnosticados com diabetes gestacional. Os participantes que foram encaminhados para o Departamento de Nutrição e Dietética foram divididos em dois grupos, de acordo com a ordem da sua aplicação. O grupo 1 foi incluído no programa de tratamento médico nutricional durante uma semana, consumindo fruta para a refeição principal e o grupo 2 para os lanches. Neste processo, foi aplicado aos participantes um plano de nutrição personalizado, com isocalórico, 3 refeições principais e 4 lanches, os macronutrientes de todas as refeições foram ajustados igualmente. Neste processo, os valores de glicemia foram medidos seis vezes por dia pelos participantes, e foram comparados os resultados da glicemia de ambos os grupos antes de se iniciar a terapia nutricional médica e no sétimo dia após o início da terapia nutricional médica. Resultados A idade média das mulheres que participaram no estudo foi de 33,50±4,95 e 32,28±5,18 anos para o 1º e 2º grupos, respetivamente, e não houve diferença entre os grupos em termos de medidas antropométricas. A glicemia média pós-prandial de manhã após terapia nutricional médica dentro dos grupos variou entre 180mg/d a 115mg/dL (p<0,001) para o Grupo 1, e de 185mg/dL a 110mg/dL para o Grupo 2 (p<0,001). Houve uma diminuição nos níveis de glicemia em jejum e glicemia média pós-prandial medidos de manhã, meio-dia e noite antes e depois da terapia nutricional médica dos grupos, mas não houve diferença estatisticamente significativa entre os grupos (p>0,05). Os níveis de açúcar no sangue de todos os participantes na dieta diabetes gestacional baixaram para níveis normais sem necessidade de terapia com insulina. Uma diminuição estatisticamente significativa foi observada no sétimo dia do estudo nos níveis de diferença do glicemia média pós-prandial-glicemia em jejum das mulheres grávidas do grupo que consumiram fruta como aperitivo (Grupo 2). (p<0.001). Não houve diferença significativa nos valores de glicemia em jejum matinal de ambos os grupos antes e depois da dieta (p>0,05). Conclusão Como resultado deste estudo, verificou-se que a terapia nutricional levou a uma diminuição do açúcar no sangue em mulheres grávidas com diabetes gestacional, mas o consumo de fruta como lanche ou refeição principal não fez uma diferença significativa no jejum e na glucose do sangue pós-prandial. Concluiu-se que o tipo e a quantidade de hidratos de carbono consumidos diariamente na diabetes gestacional são determinantes para o nível de glicose no sangue.