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1.
Hawaii J Health Soc Welf ; 83(6): 162-167, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38855708

ABSTRACT

Given the complex ethical and emotional nature of births during the periviable period for both health care providers and families, this investigation sought to identify strategies for improved counseling of pregnant patients facing preterm birth at the cusp of viability at a tertiary care center in Hawai'i. As part of a larger quality improvement project on periviability counseling, 10 patients were interviewed during either individual or small focus groups using a progression of hypothetical scenarios. Interviews were analyzed independently by 3 investigators to identify themes of patient experience and potential areas for improvement when counseling patients who are carrying periviable pregnancies. Several common themes emerged from the interviews. Patients expressed the desire for more information throughout the process delivered in a jargon-free manner with unified messaging from the medical teams, and emotional support. These findings add to a limited body of literature which addresses patient perceptions of interactions with health care providers in the face of uncertainty, particularly in a Pacific Islander population. The authors recommend increasing provider training and developing a more structured process to counsel pregnant women facing periviable pregnancy loss to improve the patient experience.


Subject(s)
Needs Assessment , Humans , Female , Pregnancy , Adult , Hawaii , Interviews as Topic/methods , Fetal Viability , Focus Groups/methods , Counseling/methods , Counseling/standards , Qualitative Research , Premature Birth/psychology
2.
Environ Int ; 180: 108220, 2023 10.
Article in English | MEDLINE | ID: mdl-37741006

ABSTRACT

Microplastics are created for commercial use, are shed from textiles, or result from the breakdown of larger plastic items. Recent reports have shown that microplastics accumulate in human tissues and may have adverse health consequences. Currently, there are no standardized environmental monitoring systems to track microplastic accumulation within human tissues. Using Raman spectroscopy, we investigated the temporal exposures to plastic pollution in Hawai'i and noted a significant increase in the accumulation of microplastics in discarded placentas over the past 15 years, with changes in the size and chemical composition of the polymers. These findings provide a rare insight into the vulnerability and sensitivity of Pacific Island residents to plastic pollution and illustrate how discarded human tissues can be used as an innovative environmental plastic pollution monitoring system.


Subject(s)
Microplastics , Water Pollutants, Chemical , Humans , Pregnancy , Female , Plastics/chemistry , Hawaii , Environmental Monitoring , Environmental Pollution , Water Pollutants, Chemical/analysis
3.
J Perinat Neonatal Nurs ; 37(1): 27-35, 2023.
Article in English | MEDLINE | ID: mdl-36707745

ABSTRACT

Pregnant people living in rural areas are at an increased risk of experiencing poor perinatal outcomes due, in part, to the need to travel long distances to see a perinatal care provider. Telehealth care has been used successfully to increase access to perinatal care but requires patients to have access to broadband Internet access and devices capable of establishing secure connections so they can participate in their care. This places an additional burden on unstably housed pregnant persons who may not have access to the required technology. The Midwifery Integrated Home Visitation Program was developed to bridge this digital divide by bringing perinatal care services to the unstably housed at their desired location of care. The included case studies outline how telehealth and portable technology were used to address the medical and nonmedical needs of unstably housed pregnant people. They also outline how bridging the digital divide by combining in-person perinatal care with mobile technology, portable technology, and telehealth care has the potential to decrease unnecessary emergency department care and ambulance use while facilitating the receipt of appropriate care and thus potentially preventing poor perinatal outcomes.


Subject(s)
Midwifery , Telemedicine , Pregnancy , Female , Child , Infant, Newborn , Humans , Delivery of Health Care , Perinatal Care
4.
J Perinat Med ; 51(1): 69-82, 2023 Jan 27.
Article in English | MEDLINE | ID: mdl-36367993

ABSTRACT

Access to maternal-fetal medicine (MFM) subspecialty services is a critical part of a healthcare system that optimizes pregnancy outcomes for women with complex medical and obstetrical disorders. Healthcare services in the State of Hawai'i consist of a complicated patchwork of independently run community health clinics and hospital systems which are difficult for many pregnant patients to navigate. Maternal telehealth services have been identified as a solution to increase access to subspecialty prenatal services for women in rural communities or neighboring islands, especially during the COVID-19 pandemic. Telehealth innovations have been rapidly developing in the areas of remote ultrasound, hypertension management, diabetes management, and fetal monitoring. This report describes how telehealth innovations are being introduced by MFM specialists to optimize care for a unique population of high-risk patients in a remote area of the world such as Hawai'i, as well as review currently available telemedicine technologies and future innovations.


Subject(s)
COVID-19 , Telemedicine , Pregnancy , Humans , Female , Hawaii/epidemiology , Pandemics , COVID-19/epidemiology , Rural Population
5.
Nutrients ; 16(1)2023 Dec 22.
Article in English | MEDLINE | ID: mdl-38201877

ABSTRACT

Understanding how maternal diet affects in utero neonatal gut microbiota and epigenetic regulation may provide insight into disease origins and long-term health. The impact of Mediterranean diet pattern adherence (MDA) on fetal gut microbiome and epigenetic regulation was assessed in 33 pregnant women. Participants completed a validated food frequency questionnaire in each trimester of pregnancy; the alternate Mediterranean diet (aMED) score was applied. Umbilical cord blood, placental tissue, and neonatal meconium were collected from offspring. DNA methylation patterns were probed using the Illumnia EPICarray Methylation Chip in parturients with high versus low MDA. Meconium microbial abundance in the first 24 h after birth was identified using 16s rRNA sequencing and compared among neonates born to mothers with high and low aMED scores. Twenty-one mothers were classified as low MDA and 12 as high MDA. Pasteurellaceae and Bacteroidaceae trended towards greater abundance in the high-MDA group, as well as other short-chain fatty acid-producing species. Several differentially methylated regions varied between groups and overlapped gene regions including NCK2, SNED1, MTERF4, TNXB, HLA-DPB, BAG6, and LMO3. We identified a beneficial effect of adherence to a Mediterranean diet on fetal in utero development. This highlights the importance of dietary counseling for mothers and can be used as a guide for future studies of meconium and immuno-epigenetic modulation.


Subject(s)
Diet, Mediterranean , Microbiota , Pregnancy , Infant, Newborn , Female , Humans , Epigenesis, Genetic , RNA, Ribosomal, 16S/genetics , Placenta , Meconium , Molecular Chaperones
6.
Am J Obstet Gynecol MFM ; 4(6): 100733, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36038068

ABSTRACT

BACKGROUND: Substance use including opioids, methamphetamines, benzodiazepines, and barbiturates during pregnancy is harmful for the pregnant person and the fetus. Routine screening using validated questionnaires is recommended, but often biologic sampling is done instead. There is often bias in urine drug screening on labor and delivery units. OBJECTIVE: This study aimed to compare characteristics of people who did and did not receive urine drug screening during labor and delivery and to examine the relationship of maternal results to neonatal results. STUDY DESIGN: This was a retrospective chart review examining all people in 2017 who delivered in the labor and delivery unit at our institution. We collected urine drug screening result information, maternal demographic data, follow-up after positive maternal tests, and neonatal test results. Individual characteristics and obstetrical outcomes were analyzed. RESULTS: Of 6265 deliveries, 297 urine drug screening tests were ordered. People who were tested identified most commonly as Native Hawaiian or Pacific Islander (P<.0001). The most common indications for ordering tests were a history of substance use and insufficient prenatal care (P<.0001). People who tested positive were more likely to self-identify as White (P=.03) and have history of substance use (P<.0001). Among the positive test results, 24 (24%) were caused by a provider-ordered medication. Self-identification as Native Hawaiian or Pacific Islander was not predictive of a positive result. Of the tested people, 36% (108/297) had a positive result on preliminary testing, and 33% (98/295) on confirmatory testing. CONCLUSION: Native Hawaiians and Pacific Islanders were more likely to undergo testing, whereas White people were more likely to have a positive result. Maternal results were not reliable for predicting neonatal drug test results and vice versa. With rising rates of substance use disorders in the pregnant and reproductive-age population, standardized unbiased race-neutral guidelines for urine drug screening should be implemented using laboratory test results that include preliminary and reflex confirmatory results.

7.
Nutr Health ; : 2601060221109668, 2022 Jun 27.
Article in English | MEDLINE | ID: mdl-35754336

ABSTRACT

Background: There is limited data on diet quality during pregnancy and its impact on hypertensive disorders of pregnancy (HDP). Aim: Examine the association with diet quality and development of HDP in an Asian and Pacific Islander Cohort Methods: Pregnant women from the 4 largest ethnic groups in Hawai'i were recruited for participation. Participants completed a food frequency questionnaire during each trimester. Adherence to three diet quality indices (DQIs) were scored-The Healthy Eating Index (HEI), The Alternate Mediterranean Diet score (aMED), and the Dietary approaches to Stop Hypertension (DASH) score. Mean scores were compared among those who did and did not develop HDP. Logistic Regression models were used to examine the association between diet quality and HDP accounting for confounders (age, parity, obesity, ethnicity, gestational weight gain). Results: Among 55 participants with complete follow-up, there was a high incidence of HDP (23%). There was no significant change of DQIs over time. Non-Hispanic White participants had higher DQIs than Filipinas, Japanese, or Native Hawaiians (not statistically significant). Across gestation, participants who did not have HDP had better diet quality than those who did. Logistic regression showed that HEI and DASH indices are predictive of HDP development, with the high DASH diet score having the greatest reduced odds. Every point higher of DASH diet score portended approximately 30% reduced odds of developing HDP. Conclusions: The DASH diet had the strongest association with reduced odds of HDP, but better diet quality in any of the indices was also predictive.

8.
J Midwifery Womens Health ; 67(1): 69-74, 2022 01.
Article in English | MEDLINE | ID: mdl-35037395

ABSTRACT

INTRODUCTION: As planned home births increase, emerging evidence on the perinatal outcomes of newborns who were planned hospital births versus planned home births has been inconsistent, and a growing number of states have attempted to legislate community births. We sought to determine whether an association exists between neonatal hypoxic ischemic encephalopathy (HIE), a complication of ischemic birth injury, and planned location of birth. METHODS: A case-control study design was used to compare data from neonates with HIE obtained from electronic health records at Kapiolani Medical Center for Women and Children in Honolulu, Hawaii, with data from neonates without HIE obtained from Hawaii state birth certificate data. A penalized backward stepwise logistic regression was performed to control for confounders. RESULTS: We included 164 neonates with HIE and 656 neonates in the control group. The odds of having been a planned home birth were 2.77 times higher in neonates with HIE compared with those without HIE (95% CI, 1.05-6.87). After adjusting for insurance, mode of birth, meconium fluid, maternal hypertension, and chorioamnionitis, neonates with HIE were still more likely to have been a planned home birth compared with those without HIE (odds ratio, 11.56; 95% CI, 1.37-118.77). DISCUSSION: Neonates with HIE were more likely to have been a planned home birth compared with neonates without HIE.


Subject(s)
Home Childbirth , Hypoxia-Ischemia, Brain , Case-Control Studies , Child , Female , Humans , Hypoxia-Ischemia, Brain/complications , Infant, Newborn , Logistic Models , Parturition , Pregnancy
9.
PLoS One ; 16(12): e0261137, 2021.
Article in English | MEDLINE | ID: mdl-34928995

ABSTRACT

AIMS: Genome-wide association studies have shown an increased risk of type-2-diabetes (T2DM) in patients who carry single nucleotide polymorphisms in several genes. We investigated whether the same gene loci confer a risk for gestational diabetes mellitus (GDM) in women from Hawaii, and in particular, Pacific Islander and Filipino populations. METHODS: Blood was collected from 291 women with GDM and 734 matched non-diabetic controls (Pacific Islanders: 71 GDM, 197 non-diabetic controls; Filipinos: 162 GDM, 395 controls; Japanese: 58 GDM, 142 controls). Maternal DNA was used to genotype and show allele frequencies of 25 different SNPs mapped to 18 different loci. RESULTS: After adjusting for age, BMI, parity and gravidity by multivariable logistic regression, several SNPs showed significant associations with GDM and were ethnicity specific. In particular, SNPs rs1113132 (EXT2), rs1111875 (HHEX), rs2237892 (KCNQ1), rs2237895 (KCNQ1), rs10830963 (MTNR1B) and rs13266634 (SLC30A8) showed significant associations with GDM in Filipinos. For Japanese, SNPs rs4402960 (IGFBP2) and rs2237892 (KCNQ1) were significantly associated with GDM. For Pacific Islanders, SNPs rs10830963 (MTNR1B) and rs13266634 (SLC30A8) showed significant associations with GDM. Individually, none of the SNPs showed a consistent association with GDM across all three investigated ethnicities. CONCLUSION: Several SNPs associated with T2DM are found to confer increased risk for GDM in a multiethnic cohort in Hawaii.


Subject(s)
Diabetes, Gestational/epidemiology , Ethnicity/genetics , Genetic Markers , Genome-Wide Association Study , Polymorphism, Single Nucleotide , Adolescent , Adult , Case-Control Studies , Diabetes, Gestational/genetics , Female , Gene Frequency , Genotype , Hawaii/epidemiology , Humans , Pregnancy , Risk Factors , Young Adult
10.
BMC Pregnancy Childbirth ; 21(1): 558, 2021 Aug 16.
Article in English | MEDLINE | ID: mdl-34399704

ABSTRACT

BACKGROUND: Consumption of a diet with high adherence to a Mediterranean diet pattern (MDP) has been associated with a favorable gastrointestinal tract (GIT) microbiome. A healthy GIT microbiome in pregnancy, as defined by increased alpha diversity, is associated with lower chance of adverse perinatal outcomes. This study aimed to evaluate the impact of adherence to an MDP on GIT microbial diversity longitudinally throughout pregnancy. METHODS: Adherence to MDP was scored by the Alternate Mediterranean (aMED) Diet Quality Score, after being applied to a validated Food Frequency Questionnaire. Association of aMED Scores with GIT alpha diversity profiles were compared linearly and across time using a linear mixed model, including covariates of age, body mass index (BMI), ethnicity, and parity. RESULTS: Forty-one participants of Filipino, Japanese, Native Hawaiian, and Non-Hispanic White descent provided dietary information and microbiome samples during each trimester of pregnancy. Alpha diversity profiles changed over gestation, with decreased microbial diversity in the third trimester. aMED scores positively correlated with Chao1 Index and Observed Species Number (r = 0.244, p = 0.017, and r = 0.233, p = 0.023, respectively). The strongest association was detected in the third trimester (Chao 1: r = 0.43, p = 0.020, Observed Species Number: r = 0.41, p = 0.026). Participants with higher aMED scores had higher relative abundance of Acidaminoacaeae at the family level (p = 0.0169), as well as higher abundance of several species known to increase production of short chain fatty acids within the GIT. CONCLUSIONS: Adherence to MDP pattern is associated with increased maternal GIT microbial diversity, and promotes the abundance of bacteria that produce short chain fatty acids. Increased consumption of fruits, vegetables and legumes with low red meat consumption were key components driving this association. The effect of nutrition however, was less of an effect than pregnancy itself. Further studies are needed to determine if adherence to a Mediterranean diet translates not only into microbial health, but also into reduced risk of adverse pregnancy outcomes.


Subject(s)
Diet, Mediterranean , Gastrointestinal Microbiome/physiology , Adolescent , Adult , Asian , Female , Hawaii/epidemiology , Humans , Japan/ethnology , Middle Aged , Philippines/ethnology , Pregnancy , Pregnancy Complications/epidemiology , Pregnancy Trimesters , White People , Young Adult
11.
Matern Child Health J ; 25(5): 841-848, 2021 May.
Article in English | MEDLINE | ID: mdl-33222026

ABSTRACT

OBJECTIVE: To describe racial/ethnic representation in United States (US) and Australian obstetric research, represented by the Maternal-Fetal Medicine Units Network (MFMU) and Australian Research Centre for Health of Women and Babies (ARCH) trials. METHODS: MFMU studies were identified through PubMed and ARCH studies through their online publication listing from 2011 to 2016. Observational and randomized cohorts and primary and secondary data analyses were included. Studies with race-based enrollment were excluded. Racial/ethnic representation was expressed as the mean racial/ethnic percentages of the studies (i.e.,: studies weighted equally regardless of sample size). Racial/ethnic percentages in MFMU studies were compared to US registered births and ARCH compared to Australian census ancestry data. RESULTS: 38 MFMU studies included 580,282 women. Racial/ethnic representation (% [SD]) included White 41.7 [12.3], Hispanic 28.1 [15.4], Black 26.2 [12.3], Asian 3.6 [2.3], and American Indian/Alaskan Native (AI/AN) 0.2 [0.02]. No studies reported Native Hawaiian/other Pacific Islanders (NHOPI) separately. Comparatively, registered US births (%) were White 75.7, Hispanic 28.1, Black 16.1, Asian/Pacific Islander 7.1, and AI/AN 1.1, which differed from the MFMU (P = 0.02). 20 ARCH studies included 51,873 women. The most reported groups were White 76.5 [17.4], Asian 15.2 [14.8], and Aboriginal/Torres Strait Islander 13.9 [30.5], compared to census numbers of White 88.7, Asian 9.4, and Aboriginal/Torres Strait Islander 2.8 (P < 0.01). Two ARCH studies reported African ethnicity. CONCLUSION: There is racial diversity in studies by MFMU and ARCH, with opportunities to increase enrollment and enhanced reporting of Asian, AI/AN, and NHOPI races in MFMU studies and Black race in ARCH studies.


Subject(s)
Biomedical Research , Ethnicity , Obstetrics , Racial Groups , Australia , Female , Hawaii , Hispanic or Latino , Humans , Native Hawaiian or Other Pacific Islander , Observational Studies as Topic , Pregnancy , Randomized Controlled Trials as Topic , United States
12.
Reprod Sci ; 28(3): 828-837, 2021 03.
Article in English | MEDLINE | ID: mdl-33107014

ABSTRACT

Intrauterine growth restriction (IUGR) is an obstetrical complication with an increased risk of perinatal mortality and morbidity. The uterus, once considered to be a sterile environment, has now been described in recent microbiome studies to harbor diverse commensal placenta microbiota, as well as potentially pathogenic flora known to cause infection. Therefore, in this pilot study, we tested whether IUGR was associated with changes to the reproductive microbiome. The reproductive microbiome was surveyed using 16S sequencing (20 IUGR, 20 controls). Alpha and beta diversity were compared, and differential taxa features associated with IUGR were identified. Microbial screening of the placenta demonstrated a diverse range of flora predominantly including Proteobacteria, Fusobacteria, Firmicutes, and Bacteroidetes. Neither alpha- nor beta-diversity was significantly different by IUGR status. However, at the taxa level, IUGR patients had significantly higher prevalence of Neisseriaceae, mucosal ß-hemolytic bacteria known to uptake iron-bound host proteins including hemoglobin. Moreover, the increase in anaerobic bacteria such as Desulfovibrio reflects the emergence of a hypoxic environment in the IUGR placenta. Further analysis of the reproductive microbiome of IUGR samples showed lower levels of H202-producing Bifidobacterium and Lactobacillus that switch from respiration to fermentation, a less energetic metabolic process, when oxygen levels decrease. Source tracking analysis showed that the placental microbial contents were predominantly contributed from an oral source, as compared to a gut or vaginal source. Our results suggest that the reproductive microbiome profiles may, in the future, constitute potential biomarkers for fetal health during pregnancy, while Neisseriaceae may constitute promising therapeutic targets for IUGR treatment.


Subject(s)
Bacteria/isolation & purification , Fetal Growth Retardation/microbiology , Microbiota , Placenta/microbiology , Reproduction , Adult , Bacteria/metabolism , Bacterial Load , Case-Control Studies , Energy Metabolism , Female , Fermentation , Fetal Growth Retardation/diagnosis , Humans , Pilot Projects , Pregnancy , Ribotyping , Young Adult
13.
Heliyon ; 6(10): e04759, 2020 Oct.
Article in English | MEDLINE | ID: mdl-33043158

ABSTRACT

INTRODUCTION: To determine how often placenta cell lines 3A (tPA-30-1) and 3A-sub E [post crisis of 3A (tPA-30-1)] are appropriately cited, or identified, as "term"-gestation placental cell lines in medical literature. METHODS: We performed a literature search on two databases, PubMed and One Search, using the terms "3A (tPA-30-1)," "3Asub-E," "3AsubE," "tPA-30-1," "tPA30-1," and "3A AND (placenta OR placental OR trophoblast OR trophoblastic) AND (cell OR line OR cell line)." Of the 218 citations retrieved, 181 were excluded due to duplication, article content irrelevance or lack of access to a full manuscript. The remaining 37 citations were thoroughly reviewed for 1)the presence of a full citation as designated by the supplier, and 2)the identification of the placental lines as "term." RESULTS: Of the 37 eligible citations included in the study, five demonstrated complete identifications of the placental cell lines of interest, while 32 demonstrated partial identifications that failed to match the designations provided by the manufacturer. Furthermore, of the 37 citations, eight accurately identified the cell lines as "term," while 27 lacked any description of gestational age, and two incorrectly identified them as "first trimester" cell lines. Overall, only three citations contained both a full citation and correct identification as a "term" placenta cell line. DISCUSSION: Only 5 of the 37 (13.5%) publications demonstrated a complete citation and only 8 publications accurately identified the gestational age of the placenta cell line as "term". Such findings confirm the need for a representative set of standards for the documentation of cell lines to improve the quality of publications in the scientific community.

14.
Hawaii J Health Soc Welf ; 79(5 Suppl 1): 3-6, 2020 05 01.
Article in English | MEDLINE | ID: mdl-32490378

ABSTRACT

As one of 17 clinical sites of the Environmental influences on Child Health Outcomes (ECHO) IDeA States Pediatric Clinical Trials Network (ISPCTN), the Hawai'i IDeA Center for Pediatric and Adolescent Clinical Trials (HIPACT) was established in 2016 to participate in community-valued and scientifically-valid multi-center pediatric clinical trials to improve health and well-being of diverse multi-ethnic populations of Hawai'i. Hawai'i is home to large populations of diverse rural and underserved populations, including indigenous Hawaiian communities and immigrant populations of Pacific Islanders and Asians. Many of these communities experience significant health disparities, made worse by their geographic isolation and many socio-economic factors. In addition to providing opportunities for children and their families to participate in clinical trials, HIPACT's goal is to provide opportunities for junior faculty of the John A. Burns School of Medicine (JABSOM), University of Hawai'i at Manoa, to acquire knowledge about and to develop skills in clinical trials. HIPACT's partners include the Hawai'i Pacific Health with Kapi'olani Medical Center for Women and Children, and Waianae Coast Comprehensive Health Center. HIPACT builds on the experiences gained through partnerships with the Mountain West IDeA Clinical and Translational Research-Infrastructure Network, and Research Centers in Minority Institutions Translational Research Network. Apart from participating in ECHO ISPCTN-sponsored studies, HIPACT junior faculty serve as committee members, Working Group leaders, Protocol Study Principal Investigators (PI) and site study PIs with ECHO ISPCTN. Through participation in ECHO ISPCTN, HIPACT has successfully increased the number of pediatric and maternal-fetal medicine faculty involved in the conduct of clinical trials.


Subject(s)
Awards and Prizes , Clinical Trials as Topic/standards , Program Development/standards , Hawaii , Humans , Pediatrics/methods
15.
Hawaii J Health Soc Welf ; 79(5 Suppl 1): 118-121, 2020 05 01.
Article in English | MEDLINE | ID: mdl-32490398

ABSTRACT

The State of Hawai'i ranks third in the nation for homelessness. Homelessness disproportionately affects the health care of pregnant mothers and their children. These homeless persons are at risk for malnutrition, physical and psychological trauma, injuries and chronic illnesses, and have difficulty accessing healthcare and social services. With the generous support of a Waiwai Ola grant from AlohaCare, a non-profit health plan in Hawai'i, the Maternal-Fetal Medicine physicians at the University Health Partners of Hawai'i created a pilot program with a midwife and medical assistant to provide prenatal health care and social services for homeless mothers on the island of O'ahu. This innovative project has given the midwife and medical assistant opportunities to perform needs assessments for homeless mothers and pilot new mobile health devices out in the field that can be optimized for delivering prenatal and postpartum health care for the most vulnerable populations of homeless mothers and their newborns.


Subject(s)
Home Care Services/trends , Ill-Housed Persons/statistics & numerical data , Pregnant Women , Prenatal Care/standards , Community-Institutional Relations , Hawaii , Home Care Services/statistics & numerical data , Humans , Patient Acceptance of Health Care/statistics & numerical data , Prenatal Care/methods , Prenatal Care/statistics & numerical data , Program Development/methods
16.
J Matern Fetal Neonatal Med ; 33(8): 1336-1345, 2020 Apr.
Article in English | MEDLINE | ID: mdl-30251570

ABSTRACT

Introduction: Intrauterine growth restriction (IUGR) is a major pregnancy complication with significant postnatal implications. IUGR is characterized by high placental oxidative stress (OS) and increased mitochondrial DNA (mtDNA) abundance that altogether alter the placental metabolism. Such alterations may be captured by changes in the expression of mitochondrial-encoded oxidative phosphorylation genes and glycolysis-regulatory genes.Study design: We aimed here to determine the association between the placental expression of all 13 protein-coding mitochondrial-encoded genes and seven key nuclear glycolysis-regulatory genes, PDK1, PDK2, PDK3, PDK4, PKLR, PKM, OGT, with IUGR, within a case-control study including 50 IUGR and 100 control pregnancies. We additionally assessed placental mtDNA abundance and OS.Results: Three mitochondrial genes, MT-ND5, MT-ND6, and MT-ATP6 were found negatively associated with IUGR, while one glycolysis-regulatory gene, PDK1 was positively associated with IUGR. mtDNA abundance and OS were positively associated with IUGR. Our study confirmed the existing data on IUGR inducing increased placental OS and mtDNA abundance. Further, our data highlighted the significant involvement of mitochondria and glucose metabolism in the OS-challenged IUGR placentas, which might modulate the placental expression of genes affecting the OXPHOS and promoting glycolysis.Brief rationale: By using banked placenta samples available at Icahn School of Medicine at Mount Sinai, this study aims at laying the foundation for the characterization of the role of mitochondria epi/genetics in IUGR. IUGR is a highly prevalent pregnancy outcome with long-term effects on the progeny that, at present, has limited tools that can be used for its diagnosis and characterization, thus limiting the efficacy of both clinical and public health interventions. The alterations of mitochondrial copy number, OS and mitochondrial and glycolysis-regulatory gene expression that we detected, together, provide the first evidence that these phenomena are playing an important role in the pathophysiology of IUGR. These findings suggest possible new research paths for the full characterization of mitochondrial biomarkers of IUGR.


Subject(s)
DNA, Mitochondrial/metabolism , Fetal Growth Retardation/genetics , Glycolysis/genetics , Placenta/metabolism , Adult , Case-Control Studies , Female , Gene Expression Regulation , Humans , Infant, Newborn , Male , Oxidative Stress , Pregnancy , Retrospective Studies
17.
PLoS Med ; 16(4): e1002771, 2019 04.
Article in English | MEDLINE | ID: mdl-30978205

ABSTRACT

BACKGROUND: Infants born preterm compared with infants born at term are at an increased risk of dying and of serious morbidities in early life, and those who survive have higher rates of neurological impairments. It remains unclear whether exposure to repeat courses of prenatal corticosteroids can reduce these risks. This individual participant data (IPD) meta-analysis (MA) assessed whether repeat prenatal corticosteroid treatment given to women at ongoing risk of preterm birth in order to benefit their infants is modified by participant or treatment factors. METHODS AND FINDINGS: Trials were eligible for inclusion if they randomised women considered at risk of preterm birth who had already received an initial, single course of prenatal corticosteroid seven or more days previously and in which corticosteroids were compared with either placebo or no placebo. The primary outcomes for the infants were serious outcome, use of respiratory support, and birth weight z-scores; for the children, they were death or any neurosensory disability; and for the women, maternal sepsis. Studies were identified using the Cochrane Pregnancy and Childbirth search strategy. Date of last search was 20 January 2015. IPD were sought from investigators with eligible trials. Risk of bias was assessed using criteria from the Cochrane Collaboration. IPD were analysed using a one-stage approach. Eleven trials, conducted between 2002 and 2010, were identified as eligible, with five trials being from the United States, two from Canada, and one each from Australia and New Zealand, Finland, India, and the United Kingdom. All 11 trials were included, with 4,857 women and 5,915 infants contributing data. The mean gestational age at trial entry for the trials was between 27.4 weeks and 30.2 weeks. There was no significant difference in the proportion of infants with a serious outcome (relative risk [RR] 0.92, 95% confidence interval [CI] 0.82 to 1.04, 5,893 infants, 11 trials, p = 0.33 for heterogeneity). There was a reduction in the use of respiratory support in infants exposed to repeat prenatal corticosteroids compared with infants not exposed (RR 0.91, 95% CI 0.85 to 0.97, 5,791 infants, 10 trials, p = 0.64 for heterogeneity). The number needed to treat (NNT) to benefit was 21 (95% CI 14 to 41) women/fetus to prevent one infant from needing respiratory support. Birth weight z-scores were lower in the repeat corticosteroid group (mean difference -0.12, 95%CI -0.18 to -0.06, 5,902 infants, 11 trials, p = 0.80 for heterogeneity). No statistically significant differences were seen for any of the primary outcomes for the child (death or any neurosensory disability) or for the woman (maternal sepsis). The treatment effect varied little by reason the woman was considered to be at risk of preterm birth, the number of fetuses in utero, the gestational age when first trial treatment course was given, or the time prior to birth that the last dose was given. Infants exposed to between 2-5 courses of repeat corticosteroids showed a reduction in both serious outcome and the use of respiratory support compared with infants exposed to only a single repeat course. However, increasing numbers of repeat courses of corticosteroids were associated with larger reductions in birth z-scores for weight, length, and head circumference. Not all trials could provide data for all of the prespecified subgroups, so this limited the power to detect differences because event rates are low for some important maternal, infant, and childhood outcomes. CONCLUSIONS: In this study, we found that repeat prenatal corticosteroids given to women at ongoing risk of preterm birth after an initial course reduced the likelihood of their infant needing respiratory support after birth and led to neonatal benefits. Body size measures at birth were lower in infants exposed to repeat prenatal corticosteroids. Our findings suggest that to provide clinical benefit with the least effect on growth, the number of repeat treatment courses should be limited to a maximum of three and the total dose to between 24 mg and 48 mg.


Subject(s)
Adrenal Cortex Hormones/administration & dosage , Adrenal Cortex Hormones/adverse effects , Pregnancy Outcome/epidemiology , Premature Birth/prevention & control , Prenatal Exposure Delayed Effects/epidemiology , Adult , Clinical Trials as Topic/statistics & numerical data , Drug Administration Schedule , Female , Humans , Infant, Newborn , Obstetric Labor, Premature/epidemiology , Obstetric Labor, Premature/prevention & control , Parturition/drug effects , Pregnancy , Premature Birth/epidemiology , Prenatal Exposure Delayed Effects/chemically induced , Recurrence , Risk Assessment , Risk Factors , Young Adult
18.
Clin Obstet Gynecol ; 61(1): 137-145, 2018 03.
Article in English | MEDLINE | ID: mdl-29252923

ABSTRACT

In many parts of the world, perinatal transmission is the most common route of infection for hepatitis B virus. In the United States, sexual contact is the most common source of hepatitis B virus infection. As a result, it is essential that women's health care providers become aware of the recommended strategies used to identify women infected with hepatitis B and to subsequently reduce perinatal transmission, particularly now that immigration and globalization is more common and reproductive science makes pregnancy more possible for women with liver disease. This article reviews evidence-based strategies for management of hepatitis B infection during pregnancy.


Subject(s)
Hepatitis B/diagnosis , Hepatitis B/therapy , Infectious Disease Transmission, Vertical/prevention & control , Pregnancy Complications, Infectious/diagnosis , Pregnancy Complications, Infectious/therapy , Antiviral Agents/therapeutic use , Female , Hepatitis B/transmission , Hepatitis B Vaccines , Humans , Pregnancy , Prenatal Care , Risk Factors
19.
J Infect Public Health ; 11(4): 584-585, 2018.
Article in English | MEDLINE | ID: mdl-29146429

ABSTRACT

Currently no recommendation exists to collect genital culture for Chlamydia trachomatis and Neisseria gonorrhoeae at diagnosis of spontaneous abortion. A retrospective cross sectional study was performed to identify first trimester abortions with concurrent genital culture collection in an emergency room setting. The results were compared to most current 2015 Center for Disease Control (CDC) statistics. Among women aged 15-24 the rate of C. trachomatis was increased to 20.0% and greater than CDC rate of 6.7% (RR 2.97, p<0.0001). No positive screens for C. trachomatis were found above age 30 and the study rate of N. gonorrhoeae was not significantly elevated. Younger women presenting for miscarriage have high prevalence of C. trachomatis in comparison to 2015 CDC statistics. Routine genital culture could be recommended at diagnosis of first trimester spontaneous abortion.


Subject(s)
Abortion, Spontaneous/microbiology , Chlamydia Infections/diagnosis , Gonorrhea/diagnosis , Pregnancy Complications, Infectious/diagnosis , Pregnancy Trimester, First , Prenatal Diagnosis/statistics & numerical data , Abortion, Spontaneous/etiology , Abortion, Spontaneous/prevention & control , Adolescent , Adult , Chlamydia Infections/complications , Chlamydia Infections/epidemiology , Chlamydia Infections/microbiology , Chlamydia trachomatis/isolation & purification , Cross-Sectional Studies , Female , Gonorrhea/complications , Gonorrhea/epidemiology , Gonorrhea/microbiology , Humans , Neisseria gonorrhoeae/isolation & purification , Pregnancy , Pregnancy Complications, Infectious/epidemiology , Pregnancy Complications, Infectious/microbiology , Prevalence , Retrospective Studies , United States/epidemiology , Young Adult
20.
Placenta ; 52: 17-20, 2017 04.
Article in English | MEDLINE | ID: mdl-28454693

ABSTRACT

Immortalization of primary cells with telomerase is thought to maintain normal phenotypic properties and avoid chromosomal abnormalities and other cancer-associated changes that occur following simian virus 40 tumor antigen (SV40 Tag) induced immortalization. However, we report that the human telomerase reverse transcriptase (hTERT)-immortalized SWAN-71 trophoblast cell line has a near pentaploid 103∼119,XXXX[cp20] karyotype. Additionally, DNA typing analysis indicated that SWAN-71 cells have acquired microsatellite instability. In comparison, the post-crisis SV40-transformed trophoblast cell line 3A-subE was hypertriploid 69∼81,XX[cp20]. Both cell lines contained multiple specific clonal rearrangements. These findings emphasize the need to monitor for genetic instability in hTERT-immortalized cells.


Subject(s)
Karyotype , Microsatellite Instability , Trophoblasts/cytology , Cell Line , Cytogenetics , Humans , Trophoblasts/metabolism
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