Does rheumatoid arthritis remit during pregnancy and relapse postpartum? Results from a nationwide study in the United Kingdom performed prospectively from late pregnancy

Immunology of pregnancy and reproductive health in autoimmune rheumatic diseases. Update from the 11th International Conference on Reproduction, Pregnancy and Rheumatic Diseases

Autoimmune rheumatic diseases (ARD) can affect women and men during fertile age, therefore reproductive health is a priority issue in rheumatology. Many topics need to be considered during preconception counselling: fertility, the impact of disease-related factors on pregnancy outcomes, the influence of pregnancy on disease activity, the compatibility of medications with pregnancy and breastfeeding. Risk stratification and individualized treatment approach elaborated by a multidisciplinary team minimize the risk of adverse pregnancy outcomes (APO). Research has been focused on identifying biomarkers that can be predictive of APO. Specifically, preeclampsia and hypertensive disorders of pregnancy tend to develop more frequently in women with ARD. Placental insufficiency can lead to intrauterine growth restriction and small-for-gestational age newborns. Such APO have been shown to be associated with maternal disease activity in different ARD. Therefore, a key message to be addressed to the woman wishing for a pregnancy and to her family is that treatment with compatible drugs is the best way to ensure maternal and fetal wellbeing. An increasing number of medications have entered the management of ARD, but data about their use in pregnancy and lactation are scarce. More information is needed for most biologic drugs and their biosimilars, and for the so-called small molecules, while there is sufficient evidence to recommend the use of TNF inhibitors if needed for keeping maternal disease under control. Other issues related to the reproductive journey have emerged as "unmet needs", such as sexual dysfunction, contraception, medically assisted reproduction techniques, long-term outcome of children, and they will be addressed in this review paper. Collaborative research has been instrumental to reach current knowledge and the future will bring novel insights thanks to pregnancy registries and prospective studies that have been established in several Countries and to their joint efforts in merging data.

Rheumatoid arthritis and the risk of preterm birth

During pregnancy, many diseases are correlated with different adverse outcomes. In turn, pregnancy affects the body, leading to increased disease susceptibility. This interplay between diseased states and pregnancy outcomes is illustrated in the effect of the chronic autoimmune disorder, rheumatoid arthritis (RA), and the adverse outcome, preterm birth (PTB). RA is a systemic disorder characterized by inflammation of the joints and other body organs. Joint pain and swelling are the most prominent manifestations of RA during pregnancy. However, the exact role of RA on PTB among pregnant women has yet to be established. This review highlighted the immunologic mechanisms involved in PTB in pregnant patients with RA. The immune cell population in pregnant women with RA exhibited higher activity of macrophages, dendritic cells, neutrophils, helper T (Th) 1 cells, and Vδ1 cells, but lower activity of CD4 + CD25^high T regulatory (CD24 + CD25^high T_reg ), Th2, and Vδ2 cells. Increased pro-inflammatory cytokines IL-6, TNF-α, and IFN-γ and decreased anti-inflammatory cytokines IL-12 and IL-10 are also exhibited by pregnant patients with RA. This review also discussed factors that may predict the risk of PTB in RA. These include disease activity and severity of RA, laboratory parameters (cytokines and immune cell population), and sociodemographic factors such as ethnicity, smoking, alcohol intake, and the level of education. Current findings on the underlying immunological mechanisms of RA can help identify possible strategies to prevent PTB.

Female reproductive status and exogenous sex hormone use in rheumatoid arthritis patients treated with tocilizumab and csDMARDs

OBJECTIVES

Sex is well known to influence risk, severity and treatment outcomes of RA, although the underlying causes are uncertain. The aim of this research was to examine whether factors influencing female sex hormones (reproductive status and exogenous sex hormone use) are associated with the efficacy of DMARDs.

METHODS

Individual participant data were pooled from five phase 3 clinical trials where RA patients were treated with tocilizumab and/or conventional synthetic DMARDs. The primary outcome was the time to first remission according to the Simplified Disease Activity Index. The relationship between menopausal status or use of exogenous sex hormones and the time of first remission was assessed via Cox proportional analysis. Analysed data included sex, baseline menopausal status (premenopausal, perimenopausal, early postmenopausal and postmenopausal), participant age, body mass index, race, number of previous DMARDs and baseline disease activity.

RESULTS

Analysis included 4474 female patients, of whom 2817 (62.9%) were postmenopausal, 202 (4.5%) were early postmenopausal, 1021 (22.8%) were premenopausal and 414 (9.2%) were perimenopausal. Of these, 221 (7.8%), 13 (6.4%), 255 (25%) and 47 (11.4%), respectively, were taking exogenous sex hormones. In the pooled analysis, perimenopausal status was associated with reduced remission compared with premenopausal status [adjusted HR 0.78 (95% CI 0.61, 0.99)]. Sex hormone use was associated with significantly higher remission [adjusted HR 1.20 (95% CI 1.01, 1.43)].

CONCLUSION

Perimenopausal women were less likely to achieve remission compared with premenopausal RA patients. The use of exogenous sex hormones appeared to be associated with more frequent remission in female RA patients, particularly those who were perimenopausal and early postmenopausal, although further research is required to confirm and identify the drivers for this observation and how it interacts with menopausal status.

Outcomes of Prospectively Followed Pregnancies in Rheumatoid Arthritis: A Multicenter Study from Romania

Women with rheumatoid arthritis (RA) may carry an increased risk of adverse pregnancy outcomes (APO). The aims of this study were to compare pregnancy outcomes in RA patients as compared to the general obstetric population (GOP) and to identify a risk profile in RA. A case-control study was conducted on 82 prospectively followed pregnancies in RA and 299 pregnancies from the GOP. The mean age at conception was 31.50 ± 4.5 years, with a mean disease duration of 8.96 ± 6.3 years. The frequency of APO in RA patients was 41.5%, 18.3% experienced spontaneous abortions, 11.0% underwent preterm deliveries, 7.3% had small for gestational age infants, 4.9% experienced intrauterine growth restriction, 1.2% experienced stillbirth, and 1.2% suffered from eclampsia. The risk of APO was correlated with a maternal age higher than 35 years (p = 0.028, OR = 5.59). The rate of planned pregnancies was 76.8%, and the subfertility rate was 4.9%. Disease activity improved every trimester, and approximately 20% experienced an improvement in the second trimester. Planned pregnancies and corticosteroids use (≤10 mg daily) were protective factors for APO in RA pregnancies (p < 0.001, OR = 0.12, p = 0.016, OR = 0.19, respectively). There was no significant association between APO and disease activity or DMARDs used before and during pregnancy. Regarding the comparison between the RA group and the controls, RA mothers were significantly older (p = 0.001), had shorter pregnancies (p < 0.001), and had neonates with a lower birth weight (p < 0.001).

Hormonal and Reproductive Factors in Relation to Cardiovascular Events in Women with Early Rheumatoid Arthritis

Hormonal and reproductive factors affect the risk for cardiovascular events (CVE) in the general population. Although the risk of CVE is increased in rheumatoid arthritis (RA), the knowledge about the impact of hormonal factors for CVE in RA is sparse. Female postmenopausal patients ≤80 years with early RA were consecutively included in this observational study (n = 803) between 1 January 1996 until 31 December 2017. Questionnaires regarding hormonal factors were distributed from the index date. Data regarding CVE were obtained from the Swedish National Health Register and Cause of Death Register. Associations between CVE and hormonal factors were analyzed using Cox proportional hazard regression. Of the postmenopausal women, 64 women had a CVE after RA onset. The time period from menopause to RA onset was significantly longer for CVE cases with higher proportion of postmenopausal women. In Cox proportional hazard regression models, years from last childbirth and multiparity were associated with higher CVE risk. Adjustments for traditional risk factors did not affect the results except for hypertension. RA onset after menopause and a longer duration from menopause until onset increased the CVE risk. Multiparity was associated with higher CVE risk whilst oral contraceptives decreased the risk. These results can contribute to identification of high-risk patients for CVE beyond traditional risk factors.

Stopping bDMARDs at the beginning of pregnancy is associated with disease flares and preterm delivery in women with rheumatoid arthritis

Objectives: Women with Rheumatoid Arthritis (RA) can experience flares during pregnancy that might influence pregnancy outcomes. We aimed at assessing the disease course during pregnancy and identifying risk factors for flares.

Methods: Data about prospectively-followed pregnancies in RA were retrospectively collected before conception, during each trimester and in the post-partum period. Clinical characteristics, disease activity (DAS28-CRP3), medication use, and pregnancy outcomes were analysed with regard to disease flares.

Results: Among 73 women who had a live birth, 64 (88%) were in remission/low disease activity before conception. During pregnancy, a flare occurred in 27 (37%) patients, mainly during first and second trimester. Flares during pregnancy were associated with the discontinuation of bDMARDs at positive pregnancy test (55% of patients with flare vs. 30% of patients with no flare, p 0.034, OR 2.857, 95% CI 1.112–8.323) and a previous use of >1 bDMARDs (33% of patients with flare vs. 10% of patients with no flare, p 0.019, OR 4.1, 95%CI 1.204–13.966). Preterm pregnancies were characterised by higher values of CRP [10 mg/L (5–11) vs. 3 mg/L (2.5–5), p 0.01] and DAS28-CRP3 [4.2 (1.9–4.5) vs. 1.9 (1.7–2.6), p 0.01] during the first trimester as compared with pregnancies at term. Preterm delivery was associated with the occurrence of flare during pregnancy (flare 27% vs. no-flare 7%, p 0.034, OR 4.625, 95%CI 1.027–20.829).

Conclusion: Preterm delivery in RA patients was associated with flares during pregnancy. Flares occurred more frequently after the discontinuation of bDMARDs at positive pregnancy test. Women with aggressive RA on treatment with bDMARDs should be considered as candidates for continuing bDMARDs during pregnancy in order to reduce the risk of flare and adverse pregnancy outcomes.

Society for Maternal-Fetal Medicine Special Statement: Postpartum visit checklists for normal pregnancy and complicated pregnancy

Rising maternal morbidity and mortality rates, widening healthcare disparities, and increasing focus on cardiometabolic risk modification in at-risk patients have together catalyzed a shift in the postpartum care paradigm. What was once a single office visit in the 6 weeks after delivery is now being reimagined as a continuum of care that transitions patients from pregnancy to life-long health optimization. However, this shift in postpartum care also comes with increased visit complexity and additional provider burden, particularly when patients have had significant pregnancy complications or have chronic diseases. To ensure that the comprehensive needs of both healthy and medically complex people are consistently met under this revised postpartum care paradigm, a postpartum visit checklist for uncomplicated postpartum patients and another checklist for those with major medical or obstetric morbidities are presented. These checklists are designed to ensure that essential elements of physical and mental well-being are routinely considered, that adequate follow-up or specialty referrals are made, and that relevant future health risks are appropriately reviewed and discussed.

Progression of Bone and Joint Destruction During the Perinatal Period in Patients With Rheumatoid Arthritis and Juvenile Idiopathic Arthritis in the Last Decade

Background: Rheumatoid arthritis (RA) is a disease that can cause joint destruction and multiple arthritis. We retrospectively investigated bone and joint destruction during the perinatal period in adult patients with RA and juvenile idiopathic arthritis (JIA) in our hospitals in the last decade.

Methods: The study included 15 women, with 20 pregnancies, 19 childbirths, and one fetal death recorded between 2009 and 2018. We analyzed patient characteristics, disease activity, the modified total Sharp score (mTSS), and ΔmTSS from prepregnancy to delivery and from delivery to one year after delivery in the biologics (BIO) group (biologics used before pregnancy) and non-BIO group (not using biologics).

Results: There were five preterm births and seven low-birth-weight infants. The Clinical Disease Activity Index (CDAI) before pregnancy and postdelivery worsened from 12±1.8 to 19.9±2.7 (p<0.05). The mTSS at prepregnancy and postdelivery was 47.7±12.2 and 57.3±11.1 in the BIO group, respectively, and 58.9±11.9 and 75.0±13.1 in the non-BIO group, respectively. In addition, the ΔmTSS value from prepregnancy to delivery and from delivery to one year after delivery was 14.5±4.8 and 9.2±1.7 in the BIO group, respectively (p<0.05), and 16.1±5.2 and 8.3±4.0 in the non-BIO group, respectively.

Conclusion: The disease activity worsened, and bone and joint destruction progressed in both the BIO and non-BIO groups during the perinatal period in adult patients with RA and JIA in the last decade.

Importance of family planning in patients with immune-mediated inflammatory diseases: A multidisciplinary approach

BACKGROUND AND OBJECTIVES

Family planning in women with immune-mediated inflammatory diseases is a challenge for healthcare teams, highlighting the need for standardized available evidence to provide patients with objective and agreed information. This study reflects the work performed by a multidisciplinary team in reviewing available scientific evidence, and the strategy agreed for family planning, pregnancy, postpartum, and breastfeeding in patients with immune-mediated inflammatory diseases.

METHODS

A literature search was conducted, information was structured across the different stages (preconception, pregnancy, postpartum and breastfeeding), and an on-site meeting was convened, in which patients and healthcare providers participated.

RESULTS

Specific materials, which are included in this work, were developed to guide clinical decisions to be agreed upon by patients and healthcare providers.

CONCLUSION

These materials meet the need for validated and updated information on the approach and use of indicated drugs for professionals responsible for the management of immune-mediated inflammatory diseases.

Does Altered Cellular Metabolism Underpin the Normal Changes to the Maternal Immune System during Pregnancy?

Pregnancy is characterised by metabolic changes that occur to support the growth and development of the fetus over the course of gestation. These metabolic changes can be classified into two distinct phases: an initial anabolic phase to prepare an adequate store of substrates and energy which are then broken down and used during a catabolic phase to meet the energetic demands of the mother, placenta and fetus. Dynamic readjustment of immune homeostasis is also a feature of pregnancy and is likely linked to the changes in energy substrate utilisation at this time. As cellular metabolism is increasingly recognised as a key determinant of immune cell phenotype and function, we consider how changes in maternal metabolism might contribute to T cell plasticity during pregnancy.

Tough Choices: Exploring Medication Decision-Making During Pregnancy and Lactation Among Women With Inflammatory Arthritis

Objective

This study explored how women’s beliefs about drug safety and interactions with their health care providers influenced their decisions to continue arthritis medications during pregnancy and lactation.

Methods

We collaborated with ArthritisPower, a patient‐powered research network, and CreakyJoints, its partner online community, to develop and disseminate a survey among members with inflammatory arthritis who had at least one pregnancy after diagnosis. Participants’ free‐text responses were evaluated by using thematic analysis.

Results

Women in the sample were 40 years old on average (N = 66). Nineteen of their pregnancies had ended in fetal loss. Fifteen percent of all pregnancies were exposed to methotrexate. Among women who used safe arthritis medications, up to 80% discontinued treatment either in preparation for pregnancy or during pregnancy or lactation. Women’s decisions to continue medications during pregnancy were influenced by their perceptions of safety and advisement from health care providers, although they often described that advice about medication safety was inconsistent between providers.

Conclusion

Women often chose to endure active inflammatory arthritis rather than to use disease‐modifying antirheumatic drugs because of concerns about medication safety during pregnancy and lactation. Conflicting medical advice from health care providers undermined patients’ trust in their providers and in the safety of their medications. The high rate of peripartum exposure to methotrexate, a fetotoxic drug, underscores the need for better family planning care for women with childbearing potential.

Adverse pregnancy outcomes in women with Behçet's disease: population-based registry linkage study in Taiwan

OBJECTIVES

To estimate the risks of adverse pregnancy outcomes in women with Behçet's disease (BD) METHODS: Data collected by the Taiwan National Health Insurance Administration between 2001 and 2012 was used for our study. A total of 2,350,339 pregnancies from the Taiwan National Health Insurance database and birth registry were identified. Maternal history of BD in women was ascertained. A comparison was made to determine whether BD increased the risk of health issues associated with pregnancy and fetal outcomes. Using an adjusted generalized estimating equation model, we estimated the odds ratios (ORs) and 95% confidence intervals (CIs) for fetal-neonatal and maternal outcomes.

RESULTS

There were 99 pregnancies in women with BD and 2,350,240 pregnancies in women without BD. The OR and 95% CI of puerperal cerebrovascular disorders were 12.08 (1.7-85.9), and those of gestational diabetes were 1.89 (1.1-3.25). Both were higher than the values in general pregnant women after adjusting for age, infant sex, urban residence, income, occupation, birth year, and Charlson Comorbidity Index. However, there were no adverse fetal outcomes in pregnant women with BD.

CONCLUSIONS

Patients with BD have no significant risks of multiple complications except for puerperal cerebrovascular disease and gestational diabetes during pregnancy. Close monitoring of blood sugar is suggested. Furthermore, neonatal outcomes were not influenced by BD. Key Points • Patients with Behçet's disease are at a risk of puerperal cerebrovascular disease and gestational diabetes during pregnancy. • The odds ratio and 95% confidence interval for puerperal cerebrovascular disorders were 12.08 (1.7-85.9), and those for gestational diabetes were 1.89 (1.1-3.25). • Pregnant patients with Behçet's disease have no risks of neonatal outcomes.

Importance of family planning in patients with immune-mediated inflammatory diseases: a multidisciplinary approach

BACKGROUND AND OBJECTIVES

Family planning in women with immune-mediated inflammatory diseases is a challenge for healthcare teams, highlighting the need for standardized available evidence to provide patients with objective and agreed information. This study reflects the work performed by a multidisciplinary team in reviewing available scientific evidence, and the strategy agreed for family planning, pregnancy, postpartum, and breastfeeding in patients with immune-mediated inflammatory diseases.

METHODS

A literature search was conducted, information was structured across the different stages (preconception, pregnancy, postpartum and breastfeeding), and an on-site meeting was convened, in which patients and healthcare providers participated.

RESULTS

Specific materials, which are included in this work, were developed to guide clinical decisions to be agreed upon by patients and healthcare providers.

CONCLUSION

These materials meet the need for validated and updated information on the approach and use of indicated drugs for professionals responsible for the management of immune-mediated inflammatory diseases.

The Rheumatoid Arthritis Gene Expression Signature Among Women Who Improve or Worsen During Pregnancy: A Pilot Study

OBJECTIVE

To assess whether gene expression signatures associated with rheumatoid arthritis (RA) before pregnancy differ between women who improve or worsen during pregnancy, and to determine whether these expression signatures are altered during pregnancy when RA improves or worsens.

METHODS

Clinical data and blood samples were collected before pregnancy (T0) and at the third trimester (T3) from 11 women with RA and 5 healthy women. RA disease activity was assessed using the Clinical Disease Activity Index (CDAI). At each timepoint, RA-associated gene expression signatures were identified using differential expression analysis of RNA sequencing profiles between women with RA and healthy women.

RESULTS

Of the women with RA, 6 improved by T3 (RA_improved), 3 worsened (RA_worsened),and 2 were excluded. At T0, mean CDAI scores were similar in both groups (RA_improved 11.2 ± 9.8; RA_worsened 13.8 ± 6.7; Wilcoxon rank-sum test: P = 0.6). In the RA_improved group, 89 genes were differentially expressed at T0 (q < 0.05 and fold change ≥ 2) compared to healthy women. When RA improved at T3, 65 of 89 (73%) of these genes no longer displayed RA-associated expression. In the RA_worsened group, a largely different RA gene expression signature (429 genes) was identified at T0. When RA disease activity worsened at T3, 207 of 429 (48%) genes lost their differential expression, while an additional 151 genes became newly differentially expressed.

CONCLUSION

In our pilot dataset, pre-pregnancy RA expression signatures differed between women who subsequently improved or worsened during pregnancy, suggesting that inherent genomic differences may influence how pregnancy affects disease activity. Further, these RA signatures were altered during pregnancy as disease activity changed.

Pregnancy Outcomes in Patients With Adult-Onset Still's Disease: A Cohort Study From China

Objective: Adult-onset Still's disease (AOSD) is an autoinflammatory disease with a higher prevalence rate in young females. The purpose of this study is to investigate whether AOSD has an adverse impact on pregnancy outcomes, or conversely exacerbated by pregnancy.

Methods: The outcomes of 191 pregnancies were evaluated in 86 female patients with AOSD. The generalized linear mixed model and propensity score matching method were conducted to evaluate the influence of AOSD on pregnancy outcomes. A dependent sample sign test was applied to assess the impact of pregnancy on the relapse of AOSD.

Results: The results showed that the post-AOSD group had a lower proportion of normal delivery (25.0 vs. 52.4%, p = 0.036) and a higher proportion of spontaneous abortion (STA) (18.8 vs. 0.6%, p = 0.002) compared with the pre-AOSD group. Moreover, pregnancy after being diagnosed with AOSD was a significant high risk factor of STA (adjusted OR = 4.577, 95% CI: 4.166–845.119; p = 0.003). Disease flare upon conception was observed in one of 16 post-AOSD pregnancies (p = 1.000). There were 11 patients with new-onset AOSD during gestation or postpartum, among which five (45.4%) evolved into the polycyclic course.

Conclusions: AOSD patients might suffer from a higher risk of STA, however, pregnancy might not be related with the exacerbation of diagnosed AOSD. New-onset AOSD during gestation or postpartum tend to evolve into the polycyclic course.

The Need to Consider Pregnancy As a Biological Variable to Reduce Preventable Suffering Related to Pregnancy

Maternal morbidity and mortality constitute a national health crisis, and pain is a significant component of maternal morbidity. One important way to reduce maternal morbidity is to reduce the pain associated with pregnancy. Unfortunately, our understanding of how to reduce pain in women is hampered because, historically, mostly male subjects have been used in the study of pain. However, more recently, females increasingly have been included in pain research studies, and astounding differences in how males and females process pain have been uncovered. Moreover, pain in nonpregnant women differs in many ways from pain experienced by pregnant women. We argue here that to better address maternal morbidity, we must better address the pain associated with pregnancy. Furthermore, just as it is important to include both men and women in pain research to better understand pain in both sexes, conducting pain research in pregnant women is essential to finding ways to reduce pain in pregnant women.

T Cell Repertoire Dynamics during Pregnancy in Multiple Sclerosis

Identifying T cell clones associated with human autoimmunity has remained challenging. Intriguingly, many autoimmune diseases, including multiple sclerosis (MS), show strongly diminished activity during pregnancy, providing a unique research paradigm to explore dynamics of immune repertoire changes during active and inactive disease. Here, we characterize immunomodulation at the single-clone level by sequencing the T cell repertoire in healthy women and female MS patients over the course of pregnancy. Clonality is significantly reduced from the first to third trimester in MS patients, indicating that the T cell repertoire becomes less dominated by expanded clones. However, only a few T cell clones are substantially modulated during pregnancy in each patient. Moreover, relapse-associated T cell clones identified in an individual patient contract during pregnancy and expand during a postpartum relapse. Our data provide evidence that profiling the T cell repertoire during pregnancy could serve as a tool to discover and track "private" T cell clones associated with disease activity in autoimmunity.

Rheumatology-led pregnancy clinic: enhancing the care of women with rheumatic diseases during pregnancy

The autoimmune rheumatic diseases have a clear predilection for women. Consequently, issues regarding family planning and pregnancy are a vital component of the management of these patients. Not only does pregnancy by itself causes physiologic/immunologic changes that impact disease activity but also women living with inflammatory arthritic conditions face the additional challenges of reduced fecundity and worsened pregnancy outcomes. Many women struggle to find adequate information to guide them on pregnancy planning, lactation and early parenting in relation to their chronic condition. This article discusses the gaps in the care provided to women living with inflammatory arthritis in standard practice and how a rheumatology nurse-led pregnancy clinic would fill such gap, consequently enhance the care provided and ensure appropriate education is provided to these individuals who represent the majority of the patients attending the rheumatology outpatient clinics. Such specialist care is expected to cover the whole journey as it is expected to provide high-quality care before, during and after pregnancy.

Modulatory Effects of Pregnancy on Inflammatory Bowel Disease

The disease course of autoimmune diseases such as rheumatoid arthritis is altered during pregnancy, and a similar modulatory role of pregnancy on inflammatory bowel disease (IBD) has been proposed. Hormonal, immunological, and microbial changes occurring during normal pregnancy may interact with the pathophysiology of IBD. IBD consists of Crohn's disease and ulcerative colitis, and because of genetic, immunological, and microbial differences between these disease entities, they may react differently during pregnancy and should be described separately. This review will address the pregnancy-induced physiological changes and their potential effect on the disease course of ulcerative colitis and Crohn's disease, with emphasis on the modulation of epithelial barrier function and immune profiles by pregnancy hormones, microbial changes, and microchimerism.

The immune system and microbiome in pregnancy

Hormonal changes during pregnancy instigate numerous physiological changes aimed at the growth and delivery of a healthy baby. A careful balance between immunological tolerance against fetal antigens and immunity against infectious agents needs to be maintained. A three-way interaction between pregnancy hormones, the immune system and our microbiota is now emerging. Recent evidence suggests that microbial alterations seen during pregnancy may help maintain homeostasis and aid the required physiological changes occurring in pregnancy. However, these same immunological and microbial alterations may also make women more vulnerable during pregnancy and the post-partum period, especially regarding immunological and infectious diseases. Thus, a further understanding of the host-microbial interactions taking place during pregnancy may improve identification of populations at risk for adverse pregnancy outcomes.

2020 American College of Rheumatology Guideline for the Management of Reproductive Health in Rheumatic and Musculoskeletal Diseases

OBJECTIVE

To develop an evidence-based guideline on contraception, assisted reproductive technologies (ART), fertility preservation with gonadotoxic therapy, use of menopausal hormone replacement therapy (HRT), pregnancy assessment and management, and medication use in patients with rheumatic and musculoskeletal disease (RMD).

METHODS

We conducted a systematic review of evidence relating to contraception, ART, fertility preservation, HRT, pregnancy and lactation, and medication use in RMD populations, using Grading of Recommendations Assessment, Development and Evaluation methodology to rate the quality of evidence and a group consensus process to determine final recommendations and grade their strength (conditional or strong). Good practice statements were agreed upon when indirect evidence was sufficiently compelling that a formal vote was unnecessary.

RESULTS

This American College of Rheumatology guideline provides 12 ungraded good practice statements and 131 graded recommendations for reproductive health care in RMD patients. These recommendations are intended to guide care for all patients with RMD, except where indicated as being specific for patients with systemic lupus erythematosus, those positive for antiphospholipid antibody, and/or those positive for anti-Ro/SSA and/or anti-La/SSB antibodies. Recommendations and good practice statements support several guiding principles: use of safe and effective contraception to prevent unplanned pregnancy, pre-pregnancy counseling to encourage conception during periods of disease quiescence and while receiving pregnancy-compatible medications, and ongoing physician-patient discussion with obstetrics/gynecology collaboration for all reproductive health issues, given the overall low level of available evidence that relates specifically to RMD.

CONCLUSION

This guideline provides evidence-based recommendations developed and reviewed by panels of experts and RMD patients. Many recommendations are conditional, reflecting a lack of data or low-level data. We intend that this guideline be used to inform a shared decision-making process between patients and their physicians on issues related to reproductive health that incorporates patients' values, preferences, and comorbidities.

Immunological adaptations in pregnancy that modulate rheumatoid arthritis disease activity

During pregnancy, the fetus that grows within the maternal uterus is not rejected by the maternal immune system. To enable both tolerance towards the fetus and defence against pathogens, modifications of the maternal immune system occur during gestation. These modifications are able to bring about a natural improvement in disease activity of some autoimmune diseases, such as rheumatoid arthritis (RA). Various mechanisms of the immune system contribute to the phenomenon of pregnancy-related improvement of RA, and the cessation of these immunomodulatory mechanisms after delivery correlates with postpartum disease flare. HLA disparity between mother and fetus, glycosylation of IgG, immunoregulatory pathways, and alterations in innate and adaptive immune cells and their cytokines have important roles in pregnancy and in pregnancy-related amelioration of RA.

Exacerbations of autoimmune diseases during pregnancy and postpartum

Autoimmune diseases represent a complex heterogeneous group of disorders that occur as a results of immune homeostasis dysregulation and loss of self-tolerance. Interestingly, more than 80% of the cases are found among women at reproductive age. Normal pregnancy is associated with remarkable changes in the immune and endocrine signaling required to tolerate and support the development and survival of the placenta and the semi-allogenic fetus in the hostile maternal immune system environment. Gravidity and postpartum represent an extremely challenge period, and likewise the general population, women suffering from autoimmune disorders attempt pregnancy. Effective preconception counseling and subsequent gestation and postpartum follow-up are crucial for improving mother and child outcomes. This comprehensive review provides information about the different pathways modulating autoimmune diseases activity and severity, such as the influence hormones, microbiome, infections, vaccines, among others, as well as updated recommendations were needed, in order to offer those women better medical care and life quality.

Risk of preterm birth following late pregnancy exposure to NSAIDs or COX-2 inhibitors

Pregnant women may take nonsteroidal antiinflammatory drugs (NSAIDs), selective cyclooxygenase (COX)-2 inhibitors, or biological agents to relieve symptoms or manage disease flares in late pregnancy. We aimed to quantify the risk of prematurity associated with late pregnancy exposure to nonselective NSAIDs, selective COX-2 inhibitors, and biological agents. Using data from Quebec Pregnancy Cohort, we performed a population-based cohort study. We included all women who were covered by the Quebec Drug Plan and had a singleton live birth between January 1, 1998 and December 31, 2009. Late pregnancy exposure was defined as having filled at least 1 prescription for nonselective NSAIDs, selective COX-2 inhibitors, or biological agents in the 3 months before delivery. Prematurity was defined as <37 weeks of gestation. Crude and adjusted odds ratios (OR) were obtained using generalized estimation equation models. Covariates included maternal autoimmune diseases, demographics, concomitant drug use, history of pregnancy complications, and other comorbidities. A total of 156,531 pregnancies met inclusion criteria and were considered for analyses. In the 3 months before delivery, 391 pregnancies were exposed to nonselective NSAIDs, 55 to COX-2 inhibitors, and 12 to biological agents. After adjustment for maternal autoimmune diseases, concomitant medication use, and other risk factors, COX-2 inhibitor use in late pregnancy was associated with a 2.46-fold increased risk of prematurity (adjusted OR, 2.46; 95% confidence interval, 1.28-4.72) compared to nonuse; only late pregnancy exposure to celecoxib was found to increase the risk (adjusted OR, 3.41; 95% confidence interval, 1.29-9.02). In conclusion, celecoxib use during late pregnancy may increase the risk of prematurity.

Perceptions of Pregnancy and Lactation from the Pregnancy and Lactation Autoimmune Network Registry

OBJECTIVE

The Pregnancy and Lactation Autoimmune Network (PLAN) registry was established to evaluate the concerns of women with autoimmune or inflammatory rheumatic diseases (AIRD) pertaining to pregnancy and lactation.

METHODS

The registry was started as a survey of patients with AIRD at a single rheumatology specialty center in November 2016 and included questions regarding fertility, pregnancy, miscarriages, and lactation before and after diagnosis.

RESULTS

The study included 154 subjects from the PLAN registry. More than half (52%) of respondents indicated that their diagnosis negatively changed their views on pregnancy and nearly a third (30%) decided not to have children after AIRD diagnosis. Most (66%) women were concerned that medication use during the childbearing process would affect the baby. One-third (34%) indicated their views on breastfeeding negatively changed as a result of their disease diagnosis. The rates and duration of breastfeeding did not differ significantly for babies born before or after the mothers' diagnosis (p = 0.50 and p = 0.21, respectively). Eighteen women in our study avoided breastfeeding or stopped breastfeeding earlier than planned to start a medication (including etanercept, adalimumab, hydroxychloroquine, and certolizumab) they believed to be contraindicated during lactation. The PLAN registry included 19 women who breastfed 22 babies while being exposed to a disease-modifying antirheumatic drug or biologic. None of these 19 women reported a delay in their children's developmental milestones or higher infection rates.

CONCLUSION

This study highlights an unmet need in patients with AIRD of childbearing potential for data and education regarding pregnancy and lactation.

A Direct Effect of Sex Hormones on Epithelial Barrier Function in Inflammatory Bowel Disease Models

BACKGROUND

Pregnancy is often described as an immune-tolerant state, and a disease modulatory role for pregnancy on inflammatory bowel disease (IBD) has been suggested. The direct effect of estrogen and progesterone on the intestinal epithelial barrier is underexplored. We investigated the direct consequences of these pregnancy hormones on barrier cells and their function.

METHODS

We used IBD patient-derived inflammatory organoid models and 2D cell lines models. Epithelial barrier function was analyzed by measuring transepithelial electrical resistance; wound closure was determined by scratch assay; and cell viability was measured by MTT assays. Pro-inflammatory cytokine production was determined by enzyme-linked immunosorbent assays. Molecular modulation of endoplasmic reticulum (ER) stress induced by tunicamycin was studied by western blot analysis of the ER stress markers GRP78, CHOP and p-IRE1.

RESULTS

Progesterone and estrogen improved wound healing and epithelial barrier function in intestinal epithelial cells via upregulation of tight junction proteins. Furthermore, these sex hormones significantly reduced ER-stress and reduce pro-inflammatory cytokine production in intestinal epithelial models.

CONCLUSION

Our study shows that estrogen and progesterone alleviate ER stress, decrease pro-inflammatory cytokine production, stimulate wound healing, and increase barrier function of epithelial cells. Combined, these data suggest that pregnancy hormones can have beneficial effects on disease activity by positively modulating the intestinal epithelial lining.

Sonography of active rheumatoid arthritis during pregnancy: a case report and literature review

Disease activity in rheumatoid arthritis usually subsides in pregnancy, however a subset of patients have worsened symptoms with joint pain and swelling. Monitoring and mitigating disease activity in pregnancy is important for preventing deforming structural changes which can affect the ability of the patient to care for themselves and the newborn. Ultrasound is a safe and low-cost imaging modality for detecting active changes from an inflammatory arthritis, which can help guide management. We describe a case of an acute disease flare during pregnancy, readily detected with ultrasound, and present a review of sonographic evaluation of rheumatoid arthritis in pregnancy.

Pregnancy in Chronic Kidney Disease: Need for Higher Awareness. A Pragmatic Review Focused on What Could Be Improved in the Different CKD Stages and Phases

Pregnancy is possible in all phases of chronic kidney disease (CKD), but its management may be difficult and the outcomes are not the same as in the overall population. The prevalence of CKD in pregnancy is estimated at about 3%, as high as that of pre-eclampsia (PE), a better-acknowledged risk for adverse pregnancy outcomes. When CKD is known, pregnancy should be considered as high risk and followed accordingly; furthermore, since CKD is often asymptomatic, pregnant women should be screened for the presence of CKD, allowing better management of pregnancy, and timely treatment after pregnancy. The differential diagnosis between CKD and PE is sometimes difficult, but making it may be important for pregnancy management. Pregnancy is possible, even if at high risk for complications, including preterm delivery and intrauterine growth restriction, superimposed PE, and pregnancy-induced hypertension. Results in all phases are strictly dependent upon the socio-sanitary system and the availability of renal and obstetric care and, especially for preterm children, of intensive care units. Women on dialysis should be aware of the possibility of conceiving and having a successful pregnancy, and intensive dialysis (up to daily, long-hours dialysis) is the clinical choice allowing the best results. Such a choice may, however, need adaptation where access to dialysis is limited or distances are prohibitive. After kidney transplantation, pregnancies should be followed up with great attention, to minimize the risks for mother, child, and for the graft. A research agenda supporting international comparisons is highly needed to ameliorate or provide knowledge on specific kidney diseases and to develop context-adapted treatment strategies to improve pregnancy outcomes in CKD women.

Polymorphisms at phase I-metabolizing enzyme and hormone receptor loci influence the response to anti-TNF therapy in rheumatoid arthritis patients

The aim of this case-control study was to evaluate whether 47 single-nucleotide polymorphisms (SNPs) in steroid hormone-related genes are associated with the risk of RA and anti-TNF drug response. We conducted a case-control study in 3 European populations including 2936 RA patients and 2197 healthy controls. Of those, a total of 1985 RA patients were treated with anti-TNF blockers. The association of potentially interesting markers in the discovery population was validated through meta-analysis with data from DREAM and DANBIO registries. Although none of the selected variants had a relevant role in modulating RA risk, the meta-analysis of the linear regression data with those from the DREAM and DANBIO registries showed a significant correlation of the CYP3A4_rs11773597 and CYP2C9_rs1799853 variants with changes in DAS28 after the administration of anti-TNF drugs (P = 0.00074 and P = 0.006, respectively). An overall haplotype analysis also showed that the ESR2_GGG haplotype significantly associated with a reduced chance of having poor response to anti-TNF drugs (P = 0.0009). Finally, a ROC curve analysis confirmed that a model built with eight steroid hormone-related variants significantly improved the ability to predict drug response compared with the reference model including demographic and clinical variables (AUC = 0.633 vs. AUC = 0.556; P_{LR_test} = 1.52 × 10^-6). These data together with those reporting that the CYP3A4 and ESR2 SNPs correlate with the expression of TRIM4 and ESR2 mRNAs in PBMCs (ranging from P = 1.98 × 10^-6 to P = 2.0 × 10^-35), and that the CYP2C9_rs1799853 SNP modulates the efficiency of multiple drugs, suggest that steroid hormone-related genes may have a role in determining the response to anti-TNF drugs.KEY POINTS• Polymorphisms within the CYP3A4 and CYP2C9 loci correlate with changes in DAS28 after treatment with anti-TNF drugs.• A haplotype including eQTL SNPs within the ESR2 gene associates with better response to anti-TNF drugs.• A genetic model built with eight steroid hormone-related variants significantly improved the ability to predict drug response.

Chronic pain during pregnancy: a review of the literature

BACKGROUND AND PURPOSE

The majority of the reviews and studies on chronic pain in pregnancy have primarily focused on the pharmacological and non-pharmacological treatment options. The purpose of our review was to identify evidence-based clinical research for the evaluation and management of preexisting chronic pain in pregnancy, chronic pain associated with pregnancy, and chronic pain in relation to mode of delivery.

METHODS

A literature search was undertaken using the search engines PubMed, CINAHL, EBSCOhost, and Web of Science. Search terms used included "chronic pain" AND "pregnant OR pregnancy" OR "pregnancy complications" from inception through August 2016.

RESULTS

The basis of this review was the 144 articles that met inclusion criteria for this review. Based on our review of the current literature, we recommend 7 guidelines for chronic pain management during and after pregnancy: 1) complete history and physical examination; 2) monitor patients for alcohol, nicotine, and substance use; 3) collaborate with patient to set treatment goals; 4) develop a management plan; 5) for opioids, use lowest effective dose; 6) formulate a pain management plan for labor and delivery; and 7) discuss reproductive health with women with chronic pain.

CONCLUSION

The management of chronic pain associated with pregnancy is understudied. Obstetrical providers primarily manage chronic pain during pregnancy. Some general guidelines are provided for those health care providers until more information is available.

Immune activation by nucleic acids: A role in pregnancy complications

Cell-free self-DNA or RNA may induce an immune response by activating specific sensing receptors. During pregnancy, placental nucleic acids present in the maternal circulation further activate these receptors due to the presence of unmethylated CpG islands. A higher concentration of cell-free foetal DNA is associated with pregnancy complications and a higher risk for foetal rejection. Cell-free foetal DNA originates from placental trophoblasts. It appears in different forms: free, bound to histones in nucleosomes, in neutrophil extracellular traps (NETs) and in extracellular vesicles (EVs). In several pregnancy complications, cell-free foetal DNA triggers the production of proinflammatory cytokines, and this production results in a cellular and humoral immune response. This review discusses preeclampsia, systemic lupus erythematosus, foetal growth restriction, gestational diabetes, rheumatoid arthritis and obesity in pregnancy from an immunological point of view and closely examines the different pathways that result in maternal inflammation. Understanding the role of cell-free nucleic acids, as well as the biogenesis of NETs and EVs, will help us to specify their functions or targets, which seem to be important in pregnancy complications. It is still not clear whether higher concentrations of cell-free nucleic acids in the maternal circulation are the cause or consequence of various complications. Therefore, further clinical studies and, even more importantly, animal experiments that focus on the involved immunological pathways are needed.

Risk for adverse pregnancy outcome in axial spondyloarthritis and rheumatoid arthritis: disease activity matters

OBJECTIVE

To analyse pregnancy outcome and delivery mode in patients with RA and axial spondyloarthritis (axSpA) in relation to disease activity and anti-rheumatic drugs.

METHODS

Patients with RA and axSpA were compared with age-matched healthy controls (HCs) with respect to pregnancy outcome and delivery mode. Disease activity (DAS28, ASDAS, CRP) and medication use of patients was assessed once at each trimester. ORs with 95% CI were calculated with univariate and multivariate regression models.

RESULTS

We analysed 244 pregnancies, of which 96 occurred in patients with RA, 78 in patients with axSpA and 70 in HCs. The adjusted analysis showed that pregnant women with RA and axSpA had a higher risk of pregnancy complications (gestational diabetes, preeclampsia, infection, preterm premature rupture of membranes), small for gestational age infants and preterm deliveries (all P < 0.05). Active disease was a predictor for preterm delivery in both RA [odds ratio (OR) = 3.9, 95% CI: 1.25, 12.15] and axSpA (OR = 13.8, 95% CI: 1.33, 143.94). Regarding delivery mode, most patients had vaginal deliveries. However, women with RA revealed an increased risk of caesarean section compared with HC (P < 0.05), which was not seen in patients with axSpA.

CONCLUSION

Our findings show that disease activity of RA and axSpA during pregnancy influences pregnancy outcome. To allow for successful pregnancy a treatment strategy that targets inactive disease beyond conception should be followed.

Linking autoimmunity to the origin of the adaptive immune system

In jawed vertebrates, the adaptive immune system (AIS) cooperates with the innate immune system (IIS) to protect hosts from infections. Although targeting non-self-components, the AIS also generates self-reactive antibodies which, when inadequately counter-selected, can give rise to autoimmune diseases (ADs). ADs are on the rise in western countries. Why haven’t ADs been eliminated during the evolution of a ∼500 million-year old system? And why have they become more frequent in recent decades? Self-recognition is an attribute of the phylogenetically more ancient IIS and empirical data compellingly show that some self-reactive antibodies, which are classifiable as elements of the IIS rather then the AIS, may protect from (rather than cause) ADs. Here, we propose that the IIS’s self-recognition system originally fathered the AIS and, as a consequence of this relationship, its activity is dampened in hygienic environments. Rather than a mere breakdown or failure of the mechanisms of self-tolerance, ADs might thus arise from architectural constraints.

Serum Protein N-Glycosylation Changes with Rheumatoid Arthritis Disease Activity during and after Pregnancy

Symptoms of rheumatoid arthritis (RA) improve during pregnancy, a phenomenon that was found to be associated with N-glycosylation changes of immunoglobulin G. Recent advances in high-throughput glycosylation analysis allow the assessment of the N-glycome of human sera as well. The aim of this study was to identify new protein N-glycosylation properties that associate with changes in RA disease activity during and after pregnancy. A longitudinal cohort of serum samples was collected during 285 pregnancies (32 control individuals and 253 RA patients). Per individual one sample was collected before conception, three during pregnancy, and three after delivery. Released serum protein N-glycans were measured by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) after employing chemical modification of the sialic acids to allow discrimination of sialic acid linkage isomers. Serum protein N-glycosylation showed strongly modified during pregnancy, with similar changes visible in control individuals and RA pregnancies. Namely, a decrease in bisection and an increase in galactosylation in diantennary glycans were found, as well as an increase in tri- and tetraantennary species and α2,3-linked sialylation thereof. The change in RA disease activity [DAS28(3)-CRP] proved negatively associated with the galactosylation of diantennary N-glycans, and positively with the sialylation of triantennary fucosylated species (A3FGS). While the protein source of the novel finding A3FGS is thus far unknown, its further study may improve our understanding of the etiology of RA disease severity.

Disease Activity of Juvenile Idiopathic Arthritis during and after Pregnancy: A Prospective Multicenter Study

OBJECTIVE

To study disease activity in women with juvenile idiopathic arthritis (JIA) during and after pregnancy. There is little previous knowledge about this topic.

METHODS

Our study included 135 pregnancies in 114 women with JIA. Disease activity was assessed at 7 timepoints before, throughout, and after pregnancy with the Disease Activity Score-28-C-reactive protein 3 (DAS28-CRP3). Scores assessed at each visit were analyzed in a linear mixed model. The same statistical method was used to study self-reported physical function, pain, and mental health.

RESULTS

Almost 80% of the women were in remission or had low disease activity during and after pregnancy. Although disease activity was stable throughout the study period, we found that DAS28 6 weeks postpartum increased significantly compared to the first trimester (2.78 vs 2.51, p = 0.005) and third trimester (2.78 vs 2.56, p = 0.011), respectively. DAS28 decreased significantly between 6 weeks and 12 months postpartum (2.78 vs 2.54, p = 0.014). Self-reported mental health was significantly better 6 weeks postpartum than before pregnancy (Medical Outcomes Study Short Form-36 Mental Health subscale 80.7 vs 76.5, p = 0.039). Self-reported pain was stable. Physical function was significantly worse in the third trimester of pregnancy than postpartum (Modified Health Assessment Questionnaire 0.57 vs 0.39, p < 0.001).

CONCLUSION

In women with JIA, disease activity was highest 6 weeks postpartum, but altogether low and stable in the period from planning pregnancy to 1 year after delivery.

New diagnosis of rheumatoid arthritis during the third trimester of pregnancy

We report here an unusual case of rheumatoid arthritis presenting for the first time in a 32-week pregnant patient. Despite thorough evaluations from different specialties, the patient's diagnosis went undiscovered originally being attributed to orthopedic issues and then to normal symptoms of pregnancy. The patient's symptoms progressively worsened until she was no longer able to ambulate and complete her daily activities. A primary diagnosis of rheumatoid arthritis is exceedingly rare during pregnancy due to changes in the body's immune system that accommodate the foreign fetus. Also physiologic changes that occur during pregnancy can often cloud the clinical picture of a patient presenting with joint pain and weakness. Nonetheless, a thorough workup should be conducted to rule out underlying rheumatologic disease.

Identifying Clinical Factors Associated With Low Disease Activity and Remission of Rheumatoid Arthritis During Pregnancy

OBJECTIVE

To identify a combination of clinical factors associated with low disease activity and remission in the third trimester during pregnancy in women with rheumatoid arthritis (RA).

METHODS

This study is embedded in the Pregnancy-Induced Amelioration of Rheumatoid Arthritis study, a prospective cohort study. There were data available on 190 pregnancies from first trimester until delivery. Multivariate regression analyses were performed on the disease activity (Disease Activity Score in 28 joints [DAS28] using the C-reactive protein [CRP] level) in the third trimester. Independent covariates were the DAS28-CRP-3 in first trimester, prednisone and sulfasalazine use in the first trimester, parity, methotrexate use in the past, autoantibody status, the presence of erosions, and RA disease duration.

RESULTS

In multivariate regression models, the DAS28-CRP-3, use of prednisone in the first trimester, and the presence of autoantibodies were negatively associated with low disease activity (DAS28-CRP-3 <3.2) in the third trimester (P < 0.05), and the DAS28-CRP-3 and presence of autoantibodies were also associated with remission (DAS28-CRP-3 <2.6) (P < 0.001). Subgroup analysis revealed that the associations of prednisone use and presence of autoantibodies were only present in patients with moderate-to-high disease activity (DAS28-CRP-3 ≥3.2) in the first trimester.

CONCLUSION

RA patients who have a low DAS28-CRP-3 in the first trimester (irrespective of autoantibody status or prednisone use) are likely to have low disease activity or remission in the third trimester. Also, women with higher disease activity who are not taking prednisone and who express no autoantibodies still have a fair chance of low disease activity in the last trimester.

Brief Report: Patterns and Secular Trends in Use of Immunomodulatory Agents During Pregnancy in Women With Rheumatic Conditions

OBJECTIVE

To describe patterns and secular trends in the use of immunomodulatory agents in pregnant women with systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), psoriatic arthritis (PsA), or ankylosing spondylitis (AS).

METHODS

We identified a cohort of women with SLE, RA, PsA, or AS enrolled in public (Medicaid, 2001-2010) or private (Optum Clinformatics, 2004-2012) health insurance, and we included women filling prescriptions for immunomodulatory agents (including steroids, nonbiologic disease-modifying agents, and biologic agents) in the 3-month period immediately prior to their pregnancies. The proportion of women continuing or discontinuing individual agents during pregnancy was reported. Annual prescription fill rates, estimated after accounting for patient characteristics and random variability from year to year in mixed-effects regression models, were used to conduct time trends analysis.

RESULTS

We included 2,645 women being treated with immunomodulatory agents prior to pregnancy. More women with PsA or AS stopped filling prescriptions for immunomodulatory agents during pregnancy (61%) than women with SLE (26%) or women with RA (34.5%). From the first to the third trimester, the proportions of women filling prescriptions for immunomodulatory agents decreased across all indications. Overall, steroids and hydroxychloroquine were the most frequently used agents in pregnancy (48.4% and 27.1%, respectively). The rates (reported per 100 deliveries in our cohort) for steroid prescription fills during pregnancy decreased significantly from 54.4 in 2001 to 42.4 in 2012, while rates for biologic agents increased from 5.1 in 2001 to 16.6 in 2012 (P < 0.001 for both trends).

CONCLUSION

Steroids and hydroxychloroquine remain the most widely prescribed treatment options in pregnancy, but the use of biologic agents is becoming increasingly common.

Pregnancy-induced gene expression changes in vivo among women with rheumatoid arthritis: a pilot study

BACKGROUND

Little is known about gene expression changes induced by pregnancy in women with rheumatoid arthritis (RA) and healthy women because the few studies previously conducted did not have pre-pregnancy samples available as baseline. We have established a cohort of women with RA and healthy women followed prospectively from a pre-pregnancy baseline. In this study, we tested the hypothesis that pregnancy-induced changes in gene expression among women with RA who improve during pregnancy (pregDAS_improved) overlap substantially with changes observed among healthy women and differ from changes observed among women with RA who worsen during pregnancy (pregDAS_worse).

METHODS

Global gene expression profiles were generated by RNA sequencing (RNA-seq) from 11 women with RA and 5 healthy women before pregnancy (T0) and at the third trimester (T3). Among the women with RA, eight showed an improvement in disease activity by T3, whereas three worsened. Differential expression analysis was used to identify genes demonstrating significant changes in expression within each of the RA and healthy groups (T3 vs T0), as well as between the groups at each time point. Gene set enrichment was assessed in terms of Gene Ontology processes and protein networks.

RESULTS

A total of 1296 genes were differentially expressed between T3 and T0 among the 8 pregDAS_improved women, with 161 genes showing at least two-fold change (FC) in expression by T3. The majority (108 of 161 genes) were also differentially expressed among healthy women (q<0.05, FC≥2). Additionally, a small cluster of genes demonstrated contrasting changes in expression between the pregDAS_improved and pregDAS_worse groups, all of which were inducible by type I interferon (IFN). These IFN-inducible genes were over-expressed at T3 compared to the T0 baseline among the pregDAS_improved women.

CONCLUSIONS

In our pilot RNA-seq dataset, increased pregnancy-induced expression of type I IFN-inducible genes was observed among women with RA who improved during pregnancy, but not among women who worsened. These findings warrant further investigation into expression of these genes in RA pregnancy and their potential role in modulation of disease activity. These results are nevertheless preliminary and should be interpreted with caution until replicated in a larger sample.

Risk factors for flare and treatment of disease flares during pregnancy in rheumatoid arthritis and axial spondyloarthritis patients

Background

During pregnancy, patients with rheumatoid arthritis (RA) and axial spondyloarthritis (axSpA) can experience active disease, which might be influenced by adjustment of treatment around conception. The aim of this study was to identify possible risk factors of disease flares during pregnancy and to evaluate the effect of treatment in pregnant patients experiencing a flare.

Methods

Pregnant patients with RA and axSpA were prospectively followed before, during, and after pregnancy. Disease activity and flares of disease activity were analyzed in regard to medication.

Results

Among 136 pregnant patients, disease flares during pregnancy occurred in 29% of patients with RA and in 25% of patients with axSpA. In both diseases, active disease and tumor necrosis factor inhibitor (TNFi) discontinuation in early pregnancy were identified as risk factors for disease flares during pregnancy. Of 75 patients with RA, 15 patients were on TNFi and discontinued the treatment at the time of the positive pregnancy test. After stopping TNFi, disease activity increased, which was reflected by peaking C-reactive protein levels at the first trimester. The relative risk of flare in patients with RA stopping TNFi was 3.33 (95% CI 1.8–6.1). Initiation of TNFi or glucocorticosteroid (GC) treatment in 60% of these patients resulted in disease improvement at the second and third trimesters. In comparison, patients with RA without TNFi in the preconception period, most of whom had used pregnancy-compatible antirheumatic drugs, showed mild and stable disease activity before and during pregnancy. Of 61 patients with axSpA, 24 patients were on TNFi and discontinued the treatment at the time of the positive pregnancy test. In patients with axSpA stopping TNFi, a disease aggravation at the second trimester could be observed. The relative risk of flare in this group was 3.08 (95% CI 1.2–7.9). In spite of initiated TNFi or GC treatment in 62.5% of these patients, disease activity remained elevated throughout pregnancy. Patients with axSpA without TNFi in the preconception period showed persistent high disease activity from prepregnancy until the postpartum period.

Conclusions

On the basis of a risk-benefit analysis, to stabilize disease activity and to prevent a flare during pregnancy in patients with RA and axSpA, tailored medication including TNF inhibitors should be considered beyond conception.

Electronic supplementary material

The online version of this article (doi:10.1186/s13075-017-1269-1) contains supplementary material, which is available to authorized users.

Lactation and Management of Postpartum Disease

While much of the existing literature in the field of reproductive rheumatology focuses on fertility, preconception counseling, and pregnancy, there is limited information regarding the postpartum period and lactation. Evidence suggests that many rheumatologic disorders flare after delivery, which, along with limitations in medications compatible with breastfeeding, make this time period challenging for women with rheumatologic conditions. This article discusses rheumatologic disease activity during the postpartum period and reviews the safety during lactation of commonly used medications for the management of rheumatic diseases. Fortunately, many of the commonly used medications are compatible with breastfeeding.

Fertility, Pregnancy, and Lactation in Rheumatoid Arthritis

Fertility is impaired in women with rheumatoid arthritis (RA), whereas less is known about male fertility problems. Pregnancy outcome in patients with RA is slightly less favorable compared with the general population, especially in patients with active disease. Disease activity usually improves during pregnancy, but less than previously thought. Although several antirheumatic drugs are contraindicated in pregnancy, more treatment options are available. There is evidence on the safety of TNF inhibitors in pregnancy. Given the impact of active disease on fertility and pregnancy outcome, a treat-to-target strategy is recommended for patients who are pregnant or have a wish to conceive.

Pregnancy-Related Challenges in Systemic Autoimmune Diseases

The awareness of pregnancy-related physiologic changes and complications is critical for the appropriate assessment and management of pregnant patients with systemic autoimmune diseases. The overlapping features of physiologic and pathological changes, selected autoantibodies, and the use of potentially teratogenic medications can complicate their management during pregnancy. While pregnancy in lupus patients presents an additional risk to an already complex situation, in patients with no disease activity, the risk of a future pregnancy-related complication is relatively low. Anti-Ro and anti-La antibodies increase the risk of neonatal lupus erythematosus, eg, photosensitive rash and irreversible congenital heart block. Antiphospholipid antibodies increase the risk of pregnancy morbidity, eg, fetal loss and early preeclampsia. Pregnancy usually has a positive effect on rheumatoid arthritis; however, a disease flare is common during the postpartum period. Both the rheumatologist and the obstetrician should partner throughout the pregnancy to manage patients for successful outcomes.