Sexual orientation disparities in gestational diabetes and hypertensive disorders of pregnancy

BACKGROUND

Sexual minority (SM) individuals (e.g., those with same-sex attractions/partners or who identify as lesbian/gay/bisexual) experience a host of physical and mental health disparities. However, little is known about sexual orientation-related disparities in gestational diabetes mellitus (GDM) and hypertensive disorders of pregnancy (HDP; gestational hypertension [gHTN] and preeclampsia).

OBJECTIVE

To estimate disparities in GDM, gHTN and preeclampsia by sexual orientation.

METHODS

We used data from the Nurses' Health Study II-a cohort of nurses across the US enrolled in 1989 at 25-42 years of age-restricted to those with pregnancies ≥20 weeks gestation and non-missing sexual orientation data (63,518 participants; 146,079 pregnancies). Our primary outcomes were GDM, gHTN and preeclampsia, which participants reported for each of their pregnancies. Participants also reported their sexual orientation identity and same-sex attractions/partners. We compared the risk of each outcome in pregnancies among heterosexual participants with no same-sex experience (reference) to those among SM participants overall and within subgroups: (1) heterosexual with same-sex experience, (2) mostly heterosexual, (3) bisexual and (4) lesbian/gay participants. We used modified Poisson models to estimate risk ratios (RR) and 95% confidence intervals (CI), fit via weighted generalised estimating equations, to account for multiple pregnancies per person over time and informative cluster sizes.

RESULTS

The overall prevalence of each outcome was ≤5%. Mostly heterosexual participants had a 31% higher risk of gHTN (RR 1.31, 95% CI 1.03, 1.66), and heterosexual participants with same-sex experience had a 31% higher risk of GDM (RR 1.31, 95% CI 1.13, 1.50), compared to heterosexual participants with no same-sex experience. The magnitudes of the risk ratios were high among bisexual participants for gHTN and preeclampsia and among lesbian/gay participants for gHTN.

CONCLUSIONS

Some SM groups may be disparately burdened by GDM and HDP. Elucidating modifiable mechanisms (e.g., structural barriers, discrimination) for reducing adverse pregnancy outcomes among SM populations is critical.

Differences in medically assisted reproduction use by sexual identity and partnership: a prospective cohort of cisgender women

STUDY QUESTION

Does medically assisted reproduction (MAR) use among cisgender women differ among those with same-sex partners or lesbian/bisexual identities compared to peers with different-sex partners or heterosexual identities?

SUMMARY ANSWER

Women with same-sex partners or lesbian/bisexual identities are more likely to utilize any MAR but are no more likely to use ART (i.e. IVF, reciprocal IVF, embryo transfer, unspecified ART, ICSI, and gamete or zygote intrafallopian transfer) compared to non-ART MAR (i.e. IUI, ovulation induction, and intravaginal or intracervical insemination) than their different-sex partnered and completely heterosexual peers.

WHAT IS KNOWN ALREADY

Sexual minority women (SMW) form families in myriad ways, including through fostering, adoption, genetic, and/or biological routes. Emerging evidence suggests this population increasingly wants to form genetic and/or biological families, yet little is known about their family formation processes and conception needs.

STUDY DESIGN, SIZE, DURATION

The Growing Up Today Study is a US-based prospective cohort (n = 27 805). Participants were 9-17 years of age at enrollment (1996 and 2004). Biennial follow-up is ongoing, with data collected through 2021.

PARTICIPANTS/MATERIALS, SETTING, METHODS

Cisgender women who met the following criteria were included in this sample: endorsed ever being pregnant; attempted a pregnancy in 2019 or 2021; and endorsed either a male- or female-sex partner OR responded to questions regarding their sexual identity during their conception window. The main outcome was any MAR use including ART (i.e. procedures involving micromanipulation of gametes) and non-ART MAR (i.e. nonmanipulation of gametes). Secondary outcomes included specific MAR procedures, time to conception, and trends across time. We assessed differences in any MAR use using weighted modified Poisson generalized estimating equations.

MAIN RESULTS AND THE ROLE OF CHANCE

Among 3519 participants, there were 6935 pregnancies/pregnancy attempts and 19.4% involved MAR. A total of 47 pregnancies or pregnancy attempts were among the same-sex partnered participants, while 91 were among bisexual participants and 37 among lesbian participants. Participants with same-sex, compared to different-sex partners were almost five times as likely to use MAR (risk ratio [95% CI]: 4.78 [4.06, 5.61]). Compared to completely heterosexual participants, there was greater MAR use among lesbian (4.00 [3.10, 5.16]) and bisexual (2.22 [1.60, 3.07]) participants compared to no MAR use; mostly heterosexual participants were also more likely to use ART (1.42 [1.11, 1.82]) compared to non-ART MAR. Among first pregnancies conceived using MAR, conception pathways differed by partnership and sexual identity groups; differences were largest for IUI, intravaginal insemination, and timed intercourse with ovulation induction. From 2002 to 2021, MAR use increased proportionally to total pregnancies/pregnancy attempts; ART use was increasingly common in later years among same-sex partnered and lesbian participants.

LIMITATIONS, REASONS FOR CAUTION

Our results are limited by the small number of SMW, the homogenous sample of mostly White, educated participants, the potential misclassification of MAR use when creating conception pathways unique to SMW, and the questionnaire's skip logic, which excluded certain participants from receiving MAR questions.

WIDER IMPLICATIONS OF THE FINDINGS

Previous studies on SMW family formation have primarily focused on clinical outcomes from ART procedures and perinatal outcomes by conception method, and have been almost exclusively limited to European, clinical samples that relied on partnership data only. Despite the small sample of SMW within a nonrepresentative study, this is the first study to our knowledge to use a nonclinical sample of cisgender women from across the USA to elucidate family formation pathways by partnership as well as sexual identity, including pathways that may be unique to SMW. This was made possible by our innovative approach to MAR categorization within a large, prospective dataset that collected detailed sexual orientation data. Specifically, lesbian, bisexual, and same-sex partnered participants used both ART and non-ART MAR at similar frequencies compared to heterosexual and different-sex partnered participants. This may signal differential access to conception pathways owing to structural barriers, emerging conception trends as family formation among SMW has increased, and a need for conception support beyond specialized providers and fertility clinics.

STUDY FUNDING/COMPETING INTEREST(S)

The research reported in this publication was supported by the National Institute on Minority Health and Health Disparities of the National Institutes of Health (NIH), under award number R01MD015256. Additionally, KRSS is supported by NCI grant T32CA009001, AKH by the NCI T32CA057711, PC by the NHLBI T32HL098048, BM by the Stanford Maternal Child Health Research Institute Clinical Trainee Support Grant and the Diversity Fellowship from the American Society for Reproductive Medicine Research Institute, BGE by NICHD R01HD091405, and SM by the Thomas O. Pyle Fellowship through the Harvard Pilgrim Health Care Foundation and Harvard University, NHLBI T32HL098048, NIMH R01MH112384, and the William T. Grant Foundation grant number 187958. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. The first author recently had a leadership role in the not-for-profit program, The Lesbian Health Fund, a research fund focused on improving the health and wellbeing of LGBTQ+ women and girls. The fund did not have any role in this study and the author's relationship with the fund did not bias the findings of this manuscript.

TRIAL REGISTRATION NUMBER

N/A.

Disparities in cancer incidence by sexual orientation

INTRODUCTION

Cancer risk factors are more common among sexual minority populations (e.g., lesbian, bisexual) than their heterosexual peers, yet little is known about cancer incidence across sexual orientation groups.

METHODS

The 1989-2017 data from the Nurses' Health Study II, a longitudinal cohort of female nurses across the United States, were analyzed (N = 101,543). Sexual orientation-related cancer disparities were quantified by comparing any cancer incidence among four sexual minority groups based on self-disclosure-(1) heterosexual with past same-sex attractions/partners/identity; (2) mostly heterosexual; (3) bisexual; and (4) lesbian women-to completely heterosexual women using age-adjusted incidence rate ratios (aIRR) calculated by the Mantel-Haenszel method. Additionally, subanalyses at 21 cancer disease sites (e.g., breast, colon/rectum) were conducted.

RESULTS

For all-cancer analyses, there were no statistically significant differences in cancer incidence at the 5% type I error cutoff among sexual minority groups when compared to completely heterosexual women; the aIRR was 1.17 (95% CI,0.99-1.38) among lesbian women and 0.80 (0.58-1.10) among bisexual women. For the site-specific analyses, incidences at multiple sites were significantly higher among lesbian women compared to completely heterosexual women: thyroid cancer (aIRR, 1.87 [1.03-3.41]), basal cell carcinoma (aIRR, 1.85 [1.09-3.14]), and non-Hodgkin lymphoma (aIRR, 2.13 [1.10-4.12]).

CONCLUSION

Lesbian women may be disproportionately burdened by cancer relative to their heterosexual peers. Sexual minority populations must be explicitly included in cancer prevention efforts. Comprehensive and standardized sexual orientation data must be systematically collected so nuanced sexual orientation-related cancer disparities can be accurately assessed for both common and rare cancers.

Emergence of Long-Range Angular Correlations in Low-Multiplicity Proton-Proton Collisions

This Letter presents the measurement of near-side associated per-trigger yields, denoted ridge yields, from the analysis of angular correlations of charged hadrons in proton-proton collisions at sqrt[s]=13  TeV. Long-range ridge yields are extracted for pairs of charged particles with a pseudorapidity difference of 1.4<|Δη|<1.8 and a transverse momentum of 1 Collapse

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First Measurement of the |t| Dependence of Incoherent J/ψ Photonuclear Production

The first measurement of the cross section for incoherent photonuclear production of J/ψ vector mesons as a function of the Mandelstam |t| variable is presented. The measurement was carried out with the ALICE detector at midrapidity, |y|<0.8, using ultraperipheral collisions of Pb nuclei at a center-of-mass energy per nucleon pair of sqrt[s_{NN}]=5.02  TeV. This rapidity interval corresponds to a Bjorken-x range (0.3-1.4)×10^{-3}. Cross sections are given in five |t| intervals in the range 0.04<|t|<1  GeV^{2} and compared to the predictions by different models. Models that ignore quantum fluctuations of the gluon density in the colliding hadron predict a |t| dependence of the cross section much steeper than in data. The inclusion of such fluctuations in the same models provides a better description of the data.

Restrictive abortion legislation and adverse mental health during pregnancy and postpartum

PURPOSE

To determine the impact of abortion legislation on mental health during pregnancy and postpartum and assess whether pregnancy intention mediates associations.

METHODS

We quantified associations between restrictive abortion laws and stress, depression symptoms during and after pregnancy, and depression diagnoses after pregnancy using longitudinal data from Nurses' Health Study 3 in 2010-2017 (4091 participants, 4988 pregnancies) using structural equation models with repeated measures, controlling for sociodemographics, prior depression, state economic and sociopolitical measures (unemployment rate, gender wage gap, Gini index, percentage of state legislatures who are women, Democratic governor).

RESULTS

Restrictive abortion legislation was associated with unintended pregnancies (β = 0.127, p = 0.02). These were, in turn, associated with increased risks of stress and depression symptoms during pregnancy (total indirect effects β = 0.035, p = 0.03; β = 0.029, p = 0.03, respectively, corresponding <1% increase in probability), but not after pregnancy.

CONCLUSIONS

Abortion restrictions are associated with higher proportions of unintended pregnancies, which are associated with increased risks of stress and depression during pregnancy.

Stress-Induced Changes in Nucleocytoplasmic Localization of Crucial Factors in Gene Expression Regulation

This study investigates the toxic effect of harmful materials, unfiltered by the placenta, on neonatal umbilical cord (UC) vessels, focusing on stress-induced adaptations in transcriptional and translational processes. It aims to analyze changes in pathways related to mRNA condensate formation, transcriptional regulation, and DNA damage response under maternal smoking-induced stress. UC vessels from neonates born to smoking (Sm) and nonsmoking mothers (Ctr) were examined. Immunofluorescence staining and confocal microscopy assessed the localization of key markers, including Transcription Complex Subunit 1 (CNOT1) and the largest subunit of RNA polymerase II enzyme (RPB1). Additionally, markers of DNA damage response, such as Poly(ADP-ribose) polymerase-1, were evaluated. In Sm samples, dissolution of CNOT1 granules in UC vessels was observed, potentially aiding stalled translation and enhancing transcription via RPB1 assembly and translocation. Control vessels showed predominant cytoplasmic RPB1 localization. Despite adaptive responses, Sm endothelial cells exhibited significant damage, indicated by markers like Poly(ADP-ribose) polymerase-1. Ex vivo metal treatment on control vessels mirrored Sm sample alterations, emphasizing marker roles in cell survival under toxic exposure. Maternal smoking induces specific molecular adaptations in UC vessels, affecting mRNA condensate formation, transcriptional regulation, and DNA damage response pathways. Understanding these intricate molecular mechanisms could inform interventions to improve neonatal health outcomes and mitigate adverse effects of toxic exposure during pregnancy.

ψ(2S) Suppression in Pb-Pb Collisions at the LHC

The production of the ψ(2S) charmonium state was measured with ALICE in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV, in the dimuon decay channel. A significant signal was observed for the first time at LHC energies down to zero transverse momentum, at forward rapidity (2.5 Collapse

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Measurements of Groomed-Jet Substructure of Charm Jets Tagged by D^{0} Mesons in Proton-Proton Collisions at sqrt[s]=13 TeV

Understanding the role of parton mass and Casimir color factors in the quantum chromodynamics parton shower represents an important step in characterizing the emission properties of heavy quarks. Recent experimental advances in jet substructure techniques have provided the opportunity to isolate and characterize gluon emissions from heavy quarks. In this Letter, the first direct experimental constraint on the charm-quark splitting function is presented, obtained via the measurement of the groomed shared momentum fraction of the first splitting in charm jets, tagged by a reconstructed D^{0} meson. The measurement is made in proton-proton collisions at sqrt[s]=13  TeV, in the low jet transverse-momentum interval of 15≤p_{T}^{jet ch}<30  GeV/c where the emission properties are sensitive to parton mass effects. In addition, the opening angle of the first perturbative emission of the charm quark, as well as the number of perturbative emissions it undergoes, is reported. Comparisons to measurements of an inclusive-jet sample show a steeper splitting function for charm quarks compared with gluons and light quarks. Charm quarks also undergo fewer perturbative emissions in the parton shower, with a reduced probability of large-angle emissions.

Measurement of the Lifetime and Λ Separation Energy of _{Λ}^{3}H

The most precise measurements to date of the _{Λ}^{3}H lifetime τ and Λ separation energy B_{Λ} are obtained using the data sample of Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV collected by ALICE at the LHC. The _{Λ}^{3}H is reconstructed via its charged two-body mesonic decay channel (_{Λ}^{3}H→^{3}He+π^{-} and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)]  ps and B_{Λ}=[102±63(stat)±67(syst)]  keV are compatible with predictions from effective field theories and confirm that the _{Λ}^{3}H structure is consistent with a weakly bound system.

COVID-19 and abortion in the Ohio River Valley: A case study of Kentucky, Ohio, and West Virginia

INTRODUCTION

During early stages of COVID-19 in the United States, government representatives in Kentucky, Ohio, and West Virginia restricted or threatened to restrict abortion care under elective surgery bans. We examined how abortion utilization changed in these states.

METHODOLOGY

We examined COVID-19 abortion-related state policies implemented in March and April 2020 using publicly available sources. We analyzed data on abortions by method and gestation and experiences of facility staff, using a survey of 14 facilities. We assessed abortions that took place in February-June 2020 and February-June 2021.

RESULTS

In February-June 2020 the monthly average abortion count was 1916; 863 (45%) were medication abortions and 229 (12%) were ≥14 weeks gestation. Of 1959 abortions performed across all three states in April 2020, 1319 (67%) were medication abortions and 231 (12%) were ≥14 weeks gestation. The shift toward medication abortion that took place in April 2020 was not observed in April 2021. Although the total abortion count in the three-state region remained steady, West Virginia had the greatest decline in total abortions, Ohio experienced a shift from instrumentation to medication abortions, and Kentucky saw little change. Staff reported increased stress from concerns over health and safety and increased scrutiny by the state and anti-abortion protesters.

DISCUSSION

Although abortion provision continued in this region, policy changes restricting abortion in Ohio and West Virginia resulted in a decrease in first trimester instrumentation abortions, an overall shift toward medication abortion care, and an increase in stress among facility staff during the early phase of COVID-19.

Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC

We study the polarization of inclusive J/ψ produced in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV at the LHC in the dimuon channel, via the measurement of the angular distribution of its decay products. We perform the study in the rapidity region 2.5 Collapse

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First Measurement of Antideuteron Number Fluctuations at Energies Available at the Large Hadron Collider

The first measurement of event-by-event antideuteron number fluctuations in high energy heavy-ion collisions is presented. The measurements are carried out at midrapidity (|η|<0.8) as a function of collision centrality in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV using the ALICE detector. A significant negative correlation between the produced antiprotons and antideuterons is observed in all collision centralities. The results are compared with a state-of-the-art coalescence calculation. While it describes the ratio of higher order cumulants of the antideuteron multiplicity distribution, it fails to describe quantitatively the magnitude of the correlation between antiproton and antideuteron production. On the other hand, thermal-statistical model calculations describe all the measured observables within uncertainties only for correlation volumes that are different with respect to those describing proton yields and a similar measurement of net-proton number fluctuations.

Enhanced Deuteron Coalescence Probability in Jets

The transverse-momentum (p_{T}) spectra and coalescence parameters B_{2} of (anti)deuterons are measured in p-p collisions at sqrt[s]=13  TeV for the first time in and out of jets. In this measurement, the direction of the leading particle with the highest p_{T} in the event (p_{T}^{lead}>5  GeV/c) is used as an approximation for the jet axis. The event is consequently divided into three azimuthal regions, and the jet signal is obtained as the difference between the toward region, that contains jet fragmentation products in addition to the underlying event (UE), and the transverse region, which is dominated by the UE. The coalescence parameter in the jet is found to be approximately a factor of 10 larger than that in the underlying event. This experimental observation is consistent with the coalescence picture and can be attributed to the smaller average phase-space distance between nucleons in the jet cone as compared with the underlying event. The results presented in this Letter are compared to predictions from a simple nucleon coalescence model, where the phase-space distributions of nucleons are generated using pythia8 with the Monash 2013 tuning, and to predictions from a deuteron production model based on ordinary nuclear reactions with parametrized energy-dependent cross sections tuned on data. The latter model is implemented in pythia8.3. Both models reproduce the observed large difference between in-jet and out-of-jet coalescence parameters, although the almost flat trend of the B_{2}^{Jet} is not reproduced by the models, which instead give a decreasing trend.

Molecular Study on Twin Cohort with Discordant Birth Weight

The increased rate of twinning has pointed out newer challenges in clinical practices related to gestational complications, intrauterine growth restriction, perinatal mortality, and comorbidities. As a twin pregnancy progresses, the increased demand for oxygen supply can easily disrupt the redox homeostasis balance and further impose a greater challenge for the developing fetuses. A substantial birth-weight difference acts as an indicator of a deficit in oxygenation or blood flow to one of the fetuses, which might be related to a low bioavailable nitric oxide level. Therefore, in this study, we focused on networks involved in the adjustment of oxygen supply, like the activation of inducible and endothelial nitric oxide synthase (NOS3) along with free radical and lipid peroxide formation in mature twin pairs with high birth-weight differences. The selected parameters were followed by immunofluorescence staining, fluorescence-activated cell sorting analysis, and biochemical measurements in the umbilical cord vessels and fetal red blood cells. Based on our data set, it is clear that the lower-weight siblings are markedly exposed to persistent intrauterine hypoxic conditions, which are connected to a decreased level in NOS3 activation. Furthermore, the increased level of peroxynitrite aggravates lipid peroxidation and induces morphological and functional damage and loss in redox homeostasis.

P-506 Administration of low molecular weight heparin alleviate immune physiology in recurrent implantation failure modulating CCL2-CCR2 axis during frozen embryo transfer: effort from clinic to bench

Study question

Does low molecular-weight heparin (LMWH) administration modulate CCL2-CCR2 axis in recurrent implantation failure (RIF) patients undergoing frozen embryo transfer (FET) to improve pregnancy salvage?

Summary answer

LMWH treatment attests beneficial immunological tolerance in vivo and in vitro through modulation of CCL2-CCR2 axis suggesting possible restoration of weak pro-inflammatory response in RIF.

What is known already

Immune imbalance in proportion of activated macrophages (M1) and alternatively activated macrophages (M2) impede endometrial receptivity and contribute to RIF. CCL2 (M2-asscociated) - CCR2 (t-helper-2 associated) axis orders macrophage polarization by influencing expression of functionally relevant and polarization associated genes and down-modulate pro-inflammatory cytokine production. Immunological effects of LMWH regulate pregnancy-promoting processes at foetal-maternal interface to provide an appropriate implantation process; outcomes being controversial. We aim to investigate the potential immunoregulatory properties of LMWH in patients with RIF undergoing FET, with particular regard to effects on macrophages and T-helper (Th) cells; two key players in promoting immune tolerance during pregnancy.

Study design, size, duration

This prospective cohort study constituted 121 women with RIF (≥3 failed embryo transfer) undergoing FET at Institute of Reproductive Medicine between January to October 2022. An incremental dose (4-12mg/day) of estradiol with (Group A; n = 62) or without (Group B; n = 59) LMWH (40 mg/day) from d2 to d12 with sequential ultrasound following intra-muscular progesterone (100mg/day) for 4 days was administered in all participants. Blood samples were collected to isolate plasma and peripheral-blood-mononuclear-cells (PBMCs).

Participants/materials, setting, methods

Monocytes were purified from PBMCs and cultured with GM-CSF or M-CSF to analyze factor/s which control CCL2-CCR2 expression along macrophage polarization by flow cytometry. Influence of CCL2 on GM-CSF-cultured macrophages (GM-MØ) and M-CSF-cultured macrophages (M-MØ) specific gene markers was analysed using quantitative RT-PCR (qRT-PCR). To assess immunological effects of LMWH in-vivo, Th-specific cytokine profile/s and respective chemokines were measured from plasma by Luminex xMAP technology. Statistical significance was set at p &lt; 0.05.

Main results and the role of chance

The clinical pregnancy rate was higher in group A. (A vs B: 37.09% vs. 27.11%, p = 0.24). LMWH exposure significantly decreased the secretion of CCL2 (p &lt; 0.01) and CCL22 (p &lt; 0.001) in GM-CSF-cultured macrophages, while it increased CCL2, CCL20 production (p &lt; 0.001) in both GM-MØ and M-MØ. However, expression of CCL7 was significantly lower (p &lt; 0.01) in M-MØ and GM-MØ generated from CD14+ CD16+ monocytes and CD14 ++ CD16- monocytes respectively under LMWH exposure. qPCR analysis revealed a significant increase (p &lt; 0.01) in the expression of various GM-MØ–specific genes including EGLN3, and SERPINE1 in macrophage supernatant post LMWH treatment. Expression of various M-MØ-specific marker/s such as IGF1, FOLR2, and HTR2B, is significantly up-regulated (p &lt; 0.01) in Group B. Group A, although documented a decreased concentration/s (pg/ml) of Th17-type cytokine/s (IL-6 (1.88 ± 0.65 vs. 0.91 ± 0.43; p &lt; 0.04 and IL-23 (17.94 ± 9.76 vs. 7.78 ± 3.43; p &lt; 0.01)), at end of treatment, concentration of TGF-β was significantly higher (3909.05 ± 1248.35 vs. 2469.83 ± 1058.71; p &lt; 0.01) which cue to probable maintenance in balance of inflammatory response at the time of implantation. No differences were observed in Th1-type cytokine level/s (IFN-γ and TNF-α). CXCL10, CXCL11, CXCL1, CXCL8, CCL17, CCL22 do not differ in vivo.

Limitations, reasons for caution

Beneficial effects of LMWH administration with a good sample size are clearly needed to confirm this hypothesis; hence result/s should be dealt with caution. Further to this, inclusion of other arm/s (corticosteroids, intralipid and/or intravenous immunoglobulin) will make the study much robust and conclusive.

Wider implications of the findings

The identification of atypical Th1-associated pro-inflammatory effects of LMWH drives to evaluate modulation of CCL2 expression to limit or potentiate macrophage activation in RIF; especially where anticoagulant effect is not the primary goal. Further, modification of cytokine expression/s might potentiate novel strategy derived from deregulated macrophage polarization.

Trial registration number

Not Applicable

P-336 Presence of stage III/IV endometriosis associated with systemic inflammation poses as individual risk factor for coronary heart disease in Indian women: Inklings for the search

Study question

Can investigating endometriosis—cardiovascular interaction identify women with stage III/IV endometriosis and elucidate pathophysiology of the female heart at a broader level?

Summary answer

Endothelial dysfunction can occur in absence of structural atherosclerotic changes in young Indian women with endometriosis urging lifelong multidisciplinary care to manage long-term health impact.

What is known already

Chronic inflammation, enhanced oxidative stress, endothelial dysfunction, and cellular proliferation are hallmarks of both atherosclerosis and endometriosis with unveiled cellular and molecular overlaps between the duos. Further, treatment/s of endometriosis, like, hysterectomy or oophorectomy and/or analgesics confer increased risk of coronary heart disease (CHD) to women with endometriosis. However, CHD in women with endometriosis remains understudied, under-recognized, and underdiagnosed. Incidentally, early atherosclerosis cannot be explained exclusively by traditional cardiovascular risk factors. Aim of the present study was to correlate subclinical atherosclerosis with metabolic parameters and markers of endothelial inflammation in Indian women with stage III/IV endometriosis.

Study design, size, duration

This observational prospective cohort study constituted 1407 consented women diagnosed with laparoscopically confirmed endometriosis (Group A; n = 718) with age matched control (Group B; n = 689) (counterpart/s of male infertility) from October 2021 to September 2022. Sub-clinical atherosclerosis was investigated before laparoscopy by ultrasound evaluation of carotid intima-media thickness (cIMT) and flow-mediated dilation (FMD). Serum samples were stored at -80 °C for evaluation of biochemical and inflammatory parameters. European Society of Cardiology guidelines were followed for standard definition/s.

Participants/materials, setting, methods

Traditional (obesity, hypertension) and metabolic (dyslipidaemia, diabetes, hyperhomocysteinemia) cardiovascular risk factor/s were assessed during evaluation and chemiluminescence respectively. Serum levels of interleukin (IL)-6, IL-8, IL-10, TNF-a, VEGF, and VCAM-1 were determined by enzyme-linked-immunosorbent assay/s. Univariate comparisons and bivariate correlations were conducted by Student’s t-test, and Spearman correlation respectively. Adjusted relative risks (aRR) with 95% confidence intervals (CI) were calculated by Cox-proportional hazard/s model among Group A vs Group B. Statistical significance was set at p &lt; 0.05.

Main results and the role of chance

62.95% and 37.04% women had stage III and stage IV endometriosis respectively as defined according to European Society for Human Reproduction and Embryology 2014 guideline. aRR (adjusted for demographic, obesity, diabetes mellitus, reproductive history, and migraine), documented a higher risk of hypertension (aRR 1.43; 95%CI 1.33–1.54) in women with endometriosis. On stratification of group A in less than and more than 40 years, laboratory parameters were similar except for significantly higher (p &lt; 0.01) serum values of homocysteine, low density lipoprotein and cholesterol, in both age range of group A. FMD, indirect marker of endothelial dysfunction, was found to be lower in group A compared to controls (mean difference: −7.54, 95% CI: -10.32− -4.73; p&lt; 0.001, however, cIMT was similar between both cohort/s. aRR of endometriosis in relation with hypercholesterolemia (1.07; 95%CI 1.01–1.25; p &lt; 0.001), hypertension (1.22; 95%CI 1.14–1.30; p &lt; 0.001), and hyperhomocysteinemia (1.04; 95%CI 0.96–1.12; p &lt; 0.08) decreased with increasing age (&gt;40 years). Systemic inflammation markers, showed an inverse relationship (p &lt; 0.001) between values of FMD and serum levels of IL-6 (r = –0.34), TNF-a (r = –0.85), and VCAM-1 (r = –0.28) in group A. Other correlations were not statistically significant.

Limitations, reasons for caution

This observational study is not supported by patients with typical cardiovascular risk factors and hence limits generalizability of evidence to other ethnicities. Further, no information on hormonal treatments, such as dianogest (a synthetic progesterone) and/or leuprolide (gonadotropin-releasing hormone analog) are available to assess extent of association between endometriosis and CHD.

Wider implications of the findings

Higher propensity of subclinical atherosclerosis in younger women with laparoscopically-confirmed endometriosis represent higher systemic inflammation cueing to increased risk for CHD. This suggests the need for risk awareness and subsequent screening for CHD and healthy lifestyle promotion among gynaecologist/s and public health specialists.

Trial registration number

Not applicable

O-097 Predicting live birth rate using combined Day3-spent embryo culture medium metabolomics and cumulus cell gene expression based algorithm to optimize embryo selection in unexplained infertility

Study question

Can combination of metabolomics of spent embryo culture medium (sECM) and cumulus cell (CC) genes judge live birth rate in unexplained infertility (UI)?

Summary answer

A combination of day3 metabolic profiling of sECM with CC gene expression yields an algorithm to predict live birth rate in UI.

What is known already

Optimizing embryo selection is rate-limiting for pregnancy success. The metabolomic profile of sECM can aid in advanced prediction of embryonic developmental potential. Recent transcriptomics studies proposed prokinectin 2 (PROK2), and pregnancy up-regulated nonubiquitous CaM kinase (PNCK) as two novel gene/s responsible for perifollicular vascularization and embryonic development respectively; two important events regulating bidirectional CC-oocyte signalling and implantation ability. Given that UI is contributory to impaired oocyte quality, we delineated if combined metabolic signature of CC gene expression encompassing metabolic, developmental competence, and extracellular matrix facet/s and sECM could address live birth rate in women with UI following single embryo transfer.

Study design, size, duration

A prospective cohort study was conducted at Institute of Reproductive Medicine between January 2022 and October 2022. 48 women (age: 30-39 years) diagnosed with UI undergoing oocyte-retrieval offered consented participation and were sub-stratified according to pregnancy outcome. Cleavage-stage embryos from intra cytoplasmic sperm injection (ICSI) cycles were scored according to combination of gene expression pattern of CC-samples and integral value of metabolite obtained from nuclear magnetic resonance (NMR) spectroscopy of sECM (range 0-3, 4-6, 7-9).

Participants/materials, setting, methods

Expression profiles of metabolic (LDHA, PFKP, PKM2), extracellular matrix (HAS2, PTX3, TNFAIP6, VCAN), and developmental competence (PNCK, PROK2) related genes were evaluated by real time-quantitative polymerase-chain-reaction (qRT-PCR) from retrieved CC. Day-3 sECM (30 μL) was collected for NMR from 43 single transferred embryos. Univariate and multivariate analysis was performed after NMR data acquisition. Live birth rate was evaluated by area-under-the-curve (AUC) values using combined score panel.

Main results and the role of chance

The groups were similar for patient age, BMI, AMH, infertility diagnosis, and stimulation protocol. A total of 43 cycles were included in the analysis [embryo transfer cancelled (n = 2), insufficient cumulus mass (n = 3)]. Clinical pregnancy was confirmed in 16 patients (37.21%). Mean mRNA levels for all genes were similar in CC associated with oocyte that fertilized normally (2PN) compared with those that either failed to fertilize or were abnormal (i.e. 1PN, 3PN). Similar results were observed in terms of speed of embryonic cleavage (≥7 cell on Day 3 vs. ≤6 cell on Day 3). Expression of VCAN, (OR: 1.102, 95% CI: 1.010-1.202, p &lt; 0.02), PNCK (OR: 0.931, 95% CI: 0.916-0.947, p &lt; 0.001) and PROK2 (OR: 1.273, 95% CI: 1.011-1.231, p &lt; 0.001) was significantly higher (p &lt; 0.01) in CC that achieved live birth compared with those that failed to result a successful pregnancy. Multivariate and univariate analysis revealed distinct metabolomic signatures between pregnant and non- pregnant group/s. Lactate, pyruvate and proline were the most significant (p &lt; 0.01) altered metabolite in sECM of non-pregnant group when compared to their pregnant counterpart. The combination demonstrated a “good” (VCAN, pyruvate: AUC: 0.87), “fair” (PROK2, proline: AUC: 0.79) and “modest” (PNCK, glucose: AUC: 0.71) in terms of live-birth rate.

Limitations, reasons for caution

The study population is heterogeneous in terms of duration of infertility and previous infertility treatment outcome, limited by small sample size and subjective nature of embryo scoring. The presumable involvement of unknown factors in developmental competence of UI and impact of frozen cycle/s should also be addressed.

Wider implications of the findings

The study provides reliable accuracy measures to support relationship between live birth rate and combined score panel in patients with UI. It is envisioned integration of CC gene expression/s and metabolomics of sECM if combined with patient characteristics may tailor therapy by artificial intelligence to model the outcome in UI.

Trial registration number

Not applicable

Abortion-Related Laws and Concurrent Patterns in Abortion Incidence in Indiana, 2010-2019

Objectives. To analyze abortion incidence in Indiana concurrent with changes in abortion-related laws. Methods. Using publicly available data, we created a timeline of abortion-related laws in Indiana, calculated abortion rates by geography, and described changes in abortion occurrence coincident with changes in abortion-related laws between 2010 and 2019. Results. Between 2010 and 2019, Indiana's legislature passed 14 abortion-restricting laws, and 4 of 10 abortion-providing clinics closed. The Indiana abortion rate decreased from 7.8 abortions per 1000 women aged 15 to 44 years in 2010 to 5.9 in 2019. At all time points, the abortion rate was 58% to 71% of the Midwestern rate and 48% to 55% of the national rate. By 2019, nearly 1 in 3 (29%) Indiana residents who obtained abortion care did so outside the state. Conclusions. Access to abortion in Indiana over the past decade was low, required increases in interstate travel to obtain care, and co-occurred with the passage of numerous abortion restrictions. Public Health Implications. These findings preview unequal abortion access and increases in interstate travel as state-level restrictions and bans go into effect across the country. (Am J Public Health. 2023;113(4):429-437. https://doi.org/10.2105/AJPH.2022.307196).

Factors associated with never-use of long-acting reversible contraception among adult reproductive-aged women in Ohio

BACKGROUND

The number of women using long-acting reversible contraception (LARC)-intrauterine devices (IUDs) and implants-is increasing and 14% of contraceptive users in the United States adopt LARC. We examined correlates of LARC never-use in a population-based survey of reproductive-aged women in Ohio.

METHODS

We analyzed data from the 2018-19 Ohio Survey of Women. We examined the prevalence of LARC never-use and reasons for never-use among ever users of contraception (N = 2388). Using Poisson regression to generate prevalence ratios (PRs), we examined associations between selected correlates (demographic factors, healthcare access/quality measures, and religious/political views) and LARC never-use.

RESULTS

Most Ohio women (74%) had never used LARC. Commonly reported reasons for not using an IUD or an implant were preferring a different method (46% and 45%, respectively), not wanting an object inside their body (45% and 43%), side effect concerns (39% and 33%), insertion/removal concerns (31% and 25%), and unfamiliarity (13% and 20%). Conservative political views (PR: 1.12, 95% confidence interval [CI]: 1.04-1.22), pro-life affiliation (PR: 1.11, 95% CI: 1.02-1.20), placing high importance on religion in daily life (PR: 1.15, 95% CI: 1.06-1.26), and being non-Hispanic white as compared to non-Hispanic Black (PR: 1.20, 95% CI: 1.02-1.41) were significantly associated with LARC never-use. Findings were generally similar for models analyzing IUD and implant never-use separately.

CONCLUSIONS

Among ever-users of contraception, LARC never-use was associated with having conservative political views, being religious, and having a pro-life affiliation. Except for race/ethnicity, demographic and healthcare measures were not associated with LARC never-use among women in Ohio.

Kentucky's abortion landscape, 2010 to 2019: an analysis of pre-Dobbs abortion disparities in a rural, restrictive state

Background

Since 2010, many US states have passed laws restricting abortion providers' ability to provide care. Such legislation has no demonstrated health benefits and creates inequitable barriers for patients.

Methods

To examine how Kentucky's abortion policies coincided with facility closures and abortion utilisation, we conducted a review of state abortion policies from 2010 to 2019 using newspapers and websites. We calculated abortion rates (abortions per 1000 women ages 15-44) by state of residence and provision for Kentucky, the South, and the US using data from the CDC and Kentucky Department of Health. We calculated percentages leaving and from out-of-state, and analysed abortions by race, pregnancy duration, and method.

Findings

Of 17 policies passed between 2010 and 2019, ten were enacted, including 20-week and telemedicine bans. One of Kentucky's two abortion facilities closed in 2017. The pooled average abortion rate in Kentucky (4.1) and for Kentuckians (5.8) was lower than national averages (11.8 and 11.1). An average of 38% of Kentuckians left their state for care, compared to 7% nationally. In 2019, the abortion rate in Kentucky was 5.8 times higher for Black patients than White patients (compared to 4.8 times nationally). The majority (62%) of abortions in Kentucky took place at 7-13 weeks' gestation.

Interpretation

Abortions in Kentucky were less frequent than in the South and US. The larger Black-White abortion rate gap reflects race- and class-based structural inequities in healthcare. Without federal protections, abortion access in Kentucky will continue waning.

Funding

This study was supported by a philanthropic foundation that makes grants anonymously.

Awareness and perception of an Indian dental professional in context to the process and their role in disaster victim identification as a taskmaster

Forensic odontology is a young area in India. However, it has been used as an integral component in a various medicolegal cases in India. However, the involvement of a dentist in mass disasters still needs to be well recognized. The role of the dentists in any unforeseen circumstances is to contribute as an adjunct hand in Disaster Victim Identification (DVI) which is in an emergent stage in India. This study aimed to assess an Indian dental professional's knowledge and awareness of their role in DVI. A pre-tested, self-administered anonymous questionnaire consisting of 6 open-ended and 14 close-ended questions was mailed to the participants. A total of 441 responses were recorded. The study indicated adequate knowledge and awareness among dental practitioners. Conversely, only a handful of people had first-hand autopsy experience. Thus, to supplement the skills needed to work at ground zero, it is recommended to develop hands-on training programs for dentists in each state of India. Also, creating a pool of experts in each state of India can strengthen the task force.

Summary of the Fourth Annual American Sexually Transmitted Diseases Association Workshop on Improving Sexually Transmitted Infection Control Efforts Through Cross-Sector Collaboration

ABSTRACT

The American Sexually Transmitted Diseases Association has, for several years, been conducting a cross-sector workshop to bring together a variety of stakeholders to develop ideas for collaboratively improving the sexually transmitted infection control efforts in the United States. In this summary, we share the content of discussions and ideas of the fourth annual workshop for future research and potential changes to practice with a focus on diagnostic capacity.