Optimizing natural fertility: a committee opinion

The impact of obesity and metabolic health on male fertility: a systematic review

The impact of paternal obesity and metabolic disease on semen quality and fertility outcomes is not fully appreciated. With increasing obesity rates, researchers have studied the intricate relationship between paternal body mass index, metabolic health, and male fertility. This systematic review identified 112 articles in the MEDLINE database between 2013 and 2023 that investigated the effects of body mass index, diabetes, metabolic syndrome, exercise, weight loss medication, or bariatric surgery on semen parameters, sperm quality, or fertility outcomes. This review suggests that obesity, diabetes, and metabolic syndrome have a negative impact on various parameters of male fertility, from semen quality to sperm deoxyribonucleic acid integrity. There is also mounting evidence that male obesity is correlated negatively with live births via both natural conception and assisted reproductive technologies. Lifestyle interventions, such as physical exercise, generally appear to improve male fertility markers; however, the type and intensity of exercise may play a crucial role. Pharmacologic treatments for weight loss, such as metformin and glucagon-like peptide 1 agonists, present a more complex picture, with studies suggesting both beneficial and detrimental effects on male reproductive health. Similarly, surgical interventions, such as gastric bypass surgery, show promise in improving hormonal imbalances but have mixed effects on semen parameters. Future research is needed to clarify these associations and inform clinical guidelines. In the interim, health practitioners should incorporate these insights into clinical practices, encouraging proactive lifestyle changes and providing targeted treatments to improve male reproductive health.

Predictors of Fertility-Awareness-Based Method Use Among Women Trying to Conceive and Women Contemplating Pregnancy

BACKGROUND

Fertility-awareness-based methods have been linked to shorter time to conception; however, little is known about the predictors of fertility-awareness-based method use among women who are currently or will soon be trying to conceive.

OBJECTIVES

The aim of this study was to identify predictors of fertility-awareness-based methods use among women trying to conceive or contemplating pregnancy within the next year.

METHODS

Women participating in the Nurses' Health Study 3 were asked if they were trying to become pregnant or contemplating pregnancy and whether they are using fertility-awareness-based methods. Multivariable negative binomial regression was used to identify predictors for a number of fertility-awareness-based methods used.

RESULTS

Among the 23,418 women asked about pregnancy intention since 2015, 955 were trying to conceive, and 2,282 were contemplating pregnancy within the next year. The three most used fertility-awareness-based methods among women trying to conceive were menstrual cycle tracking, ovulation prediction kits, and cervical mucus monitoring. Among women contemplating pregnancy, the three most commonly used methods were menstrual cycle tracking, cervical mucus monitoring, and basal body temperature monitoring. The ongoing duration of pregnancy attempts and gravidity were associated with the number of methods used among women actively trying to conceive. When compared with women who were trying for 2 months or less, the number of methods was 29% higher when trying for 3-5 months, 45% higher when trying for 6-12 months, and 38% higher when trying for more than 1 year. Compared with nulligravid women, the number of methods was lower for women with a history of two or more pregnancies. Among women contemplating pregnancy, those who were married or in a domestic partnership used more fertility-awareness-based methods than unpartnered women. No other significant predictors of fertility-awareness-based method use were identified.

DISCUSSION

Duration of ongoing pregnancy attempt and gravidity were the only significant predictors for the number of fertility-awareness-based methods used among women actively trying to conceive, whereas partnership was the only significant predictor of the number of fertility-awareness-based methods among women contemplating pregnancy.

Impact of Embryo Cryopreservation on Large for Gestational Age Babies Born by Embryo Transfer: Cohort Retrospective Study

The transfer of frozen-thawed embryos has been associated with an increased risk of large for gestational age at birth. Our objective is to assess its impact on the risk of large for gestational age (LGA) in order to improve the bias control in relation with the available studies. Retrospective cohort study on cumulative sample of 801 single live births of 32 weeks or longer of gestation, resulting from pregnancies obtained by cryopreserved or fresh embryo transfer which are not affected by disorders that could impair fetal growth and carried out at Hospital General Universitario Gregorio Marañón, in Madrid, during the period 2005-2017. The relative risk (RR) of LGA has been estimated with its confidence interval (CI) at 95%. Multivariate analysis using logistic regression was applied to adjust the crude effect. LGA was more frequent in babies born after cryotransfer in comparison with the reference group (20.9% vs. 6.0%; p < 0.001), as well as macrosomia (8.2% vs. 0.9%; p < 0.001). Frequencies of weight > 4500 g were similar (0.7% vs. 0.1%; p > 0.05). Nulliparity was associated to a higher risk of LGA (RR: 3.8; CI95%: 2.0-7.0; p < 0.005), as well as cleaving embryo transfer (RR: 2; CI95%: 1.07-3.8; p < 0.05). According to the multivariate analysis, the exposure variable was the only one independently associated with LGA (OR: 3.5; CI95%: 2.0-6.1; p < 0.001). Frozen-thawed embryo transfer significantly increases the risk of LGA, regardless of the influence of factors relating to the patient's condition, the embryos transferred, or the fetal sex.

Measuring Nuance in Individual Contraceptive Need: A Case Study from a Cohort in Malawi

Contraceptive counseling protocols tend to focus narrowly on pregnancy intentions, which may overlook other factors that contribute to whether an individual wants or needs contraception. In this report, we demonstrate the potential of two measures of individual contraceptive need that could be assessed as part of contraceptive counseling: (1) a composite score constructed from pregnancy intentions, sexual frequency, and perceived fecundity and (2) a direct measure of contraceptive need ("do you feel it is necessary for you to be using contraception right now?") We compare the two measures using data from Umoyo wa Thanzi, a cohort study in Central Malawi (N = 906; 2017-2018). More frequent sex, perceptions of being more fecund, and a stronger desire to avoid pregnancy were associated with directly reporting contraceptive need (p < 0.001). Women who directly reported contraceptive need had a higher average composite score than women who directly reported they had no need (mean = 7.4 vs. 6.3; p < 0.01), but nearly all participants had scores indicating some risk of unintended pregnancy. Contraceptive counseling protocols should consider assessing women's direct report of contraceptive need, along with risk factors for unintended pregnancy, such as sexual frequency, perceived fecundity, and desire to avoid pregnancy, to better counsel clients.

Separating the chaff from the wheat: antibody-based removal of DNA-fragmented sperm

STUDY QUESTION

Is it possible to remove sperm with damaged DNA from a semen sample?

SUMMARY ANSWER

By using immunomagnetic cell sorting that targets the sperm head-bound epididymal sperm-binding protein 1 (ELSPBP1), it was possible to produce an ELSPBP1(-) sperm fraction characterized by consistently lower levels of sperm DNA fragmentation (SDF).

WHAT IS KNOWN ALREADY

In bovines, ELSPBP1 is bound to dead spermatozoa. Human ejaculates with high SDF have increased detected levels of sperm ELSPBP1 when compared to ejaculates with low native SDF.

STUDY DESIGN, SIZE, DURATION

We recruited 267 patients who were referred to the clinic for conjugal infertility. After applying exclusion criteria, such as fever within 90 days of the study, history of systemic diseases, alterations or surgical interventions to the genital tract and use of cigarette or drugs, a total of 133 patients were included. A total of 52 samples were used for the evaluation of sperm ELSPBP1 levels (Sub-study 1), 41 samples for determination of ELSPBP1 location in human sperm (Sub-study 2), and 40 samples for immunomagnetic cell sorting targeting ELSPBP1, to produce ELSPBP1(-) (without ELSPBP1) and ELSPBP1(+) (with ELSPBP1) fractions (Sub-study 3). Samples were collected between July 2016 and September 2019.

PARTICIPANTS/MATERIALS, SETTING, METHODS

In Sub-study 1, sperm ELSPBP1 levels were assessed by western blotting. For Sub-study 2, ELSPBP1 was localized in sperm by immunocytochemistry. Finally, for Sub-study 3, sperm were selected based on incubation of semen samples with antibody-coated magnetic microspheres targeting ELSPBP1. Two fractions were produced (with or without ELSPBP1), and these sub-populations were submitted to an alkaline Comet assay for determination of SDF.

MAIN RESULTS AND THE ROLE OF CHANCE

Men with high SDF presented higher sperm ELSPBP1 levels when compared to the control group (low SDF), while no difference between groups was observed in seminal plasma. ELSPBP1 was located in the head region of human sperm. The ELSPBP1(+) fractions presented high and variable levels of SDF, while their paired ELSPBP(-) fractions presented consistently low SDF.

LIMITATIONS, REASONS FOR CAUTION

This work did not validate the levels of ELSPBP1 in other functional alterations of sperm, such as acrosome integrity or mitochondrial activity. Moreover, this is still a pre-clinical study, intended to demonstrate proof-of-concept that ELSPBP1 selects sperm with low DNA fragmentation; further investigation is warranted to demonstrate safety for use in ART. Sperm fractions were not assessed for sperm vitality. A clinical trial is still necessary for these findings to be extrapolated to outcomes in ART.

WIDER IMPLICATIONS OF THE FINDINGS

Our findings demonstrate that ELSPBP1 is associated with sperm with higher levels of DNA fragmentation. The finding that the sperm membrane can reflect alterations in DNA integrity could give rise to a novel molecular method for sperm preparation prior to use of assisted reproductive procedures. Moreover, the detection of sperm-bound ELSPBP1 could serve as an indirect method for the determination of DNA fragmentation.

STUDY FUNDING/COMPETING INTEREST(S)

L.B.B. was a recipient of a Ph.D. scholarship from the Sao Paulo Research Foundation-FAPESP (process number 2016/05487-3). R.P.B. is a recipient of a Scientific Productivity scholarship from the Brazilian National Council for Scientific and Technological Development-CNPq (process number 306705/2017-6). The authors have no conflict of interest to disclose.

TRIAL REGISTRATION NUMBER

N/A.

Profiling the male germline genome to unravel its reproductive potential

OBJECTIVE

To identify specific germline mutations related to sperm reproductive competence, in couples with unexplained infertility.

DESIGN

In this retrospective study, couples were divided according to whether they had successful intracytoplasmic sperm injection outcomes (fertile) or not (infertile). Ancillary sperm function tests were performed on ejaculates, and whole exome sequencing was performed on spermatozoal DNA. Sperm aneuploidy and gene mutation profiles were compared between the 2 cohorts as well as according to the specific reasons for reproductive failure.

SETTING

Center for reproductive medicine at a major academic medical center.

PATIENT(S)

Thirty-one couples with negative infertility workups and normal semen parameters.

INTERVENTION(S)

Couples with mutations on fertilization- or embryo development-related genes were subsequently treated by assisted gamete treatment or microfluidics, respectively.

MAIN OUTCOME MEASURE(S)

Intracytoplasmic sperm injection cycle outcomes including fertilization, clinical pregnancy, and delivery rates.

RESULT(S)

Sperm aneuploidy was lower in the fertile group (4.0% vs. 8.4%). Spermatozoa from both cohorts displayed mutations associated with sperm-egg fusion (ADAM3A) and acrosomal development (SPACA1), regardless of reproductive outcome. The infertile cohort was then categorized according to the reasons for reproductive failure: absent fertilization, poor early embryo development, implantation failure, or pregnancy loss. Spermatozoa from the fertilization failure subgroup (n = 4) had negligible PLCζ presence (10% ± 9%) and gene mutations (PLCZ1, PIWIL1, ADAM15) indicating a sperm-related oocyte-activating deficiency. These couples were successfully treated by assisted gamete treatment in their subsequent cycles. Spermatozoa from the poor early embryo development subgroup (n = 5) had abnormal centrosomes (45.9% ± 5%), and displayed mutations impacting centrosome integrity (HAUS1) and spindle/microtubular stabilization (KIF4A, XRN1). Microfluidic sperm processing subsequently yielded a term pregnancy. Spermatozoa from the implantation failure subgroup (n = 7) also had abnormal centrosomes (53.1% ± 13%) and carried mutations affecting embryonic implantation (IL9R) and microtubule and centrosomal integrity (MAP1S, SUPT5H, PLK4), whereas those from the pregnancy loss subgroup (n = 5) displayed mutations on genes involved in trophoblast development (NLRP7), cell cycle regulation (MARK4, TRIP13, DAB2IP, KIF1C), and recurrent miscarriage (TP53).

CONCLUSION(S)

By assessing the sperm genome, we identified specific germline mutations related to various reproductive processes. This information may clarify elusive factors underlying reproductive competence and enhance treatment for couples with unexplained infertility.

A Pilot Qualitative Case Study of Women's Experiences with Fertility Awareness-Based Methods

This pilot qualitative case study was able to elicit rich data enabling a description of how women went through the journey of achieving pregnancy using fertility awareness-based methods. Findings underscore that women preferred using natural ways to detect ovulation and would recommend other women to do so, but with healthcare providers' guidance. The findings of this case study can serve as a starting point to provide a framework to understand women's experiences of enduring trial and error with multiple fertility awareness-based methods before discovering their effective method. Findings emphasize the importance for healthcare providers to guide women in using fertility awareness-based methods.

Emerging concepts in male contraception: a narrative review of novel, hormonal and non-hormonal options

Access to reliable contraception is a pillar of modern society. The burden of unintended pregnancy has fallen disproportionately on the mother throughout human history; however, recent legal developments surrounding abortion have sparked a renewed interest in male factor contraceptives beyond surgical sterilization and condoms. Modern efforts to develop reversible male birth control date back nearly a century and initially focused on altering the hypothalamic-pituitary-testes axis. These hormonal contraceptives faced multiple barriers, including systemic side effects, challenging dosing regimens, unfavorable routes of delivery, and the public stigma surrounding steroid use. Novel hormonal agents are seeking to overcome these barriers by limiting the side effects and simplifying use. Non-hormonal contraceptives are agents that target various stages of spermatogenesis; such as inhibitors of retinoic acid, Sertoli cell-germ cell interactions, sperm ion channels, and other small molecular targets. The identification of reproductive tract-specific genes associated with male infertility has led to more targeted drug development, made possible by advances in CRISPR and proteolysis targeting chimeras (PROTACs). Despite multiple human trials, no male birth control agents have garnered regulatory approval in the United States or abroad. This narrative review examines current and emerging male contraceptives, including hormonal and non-hormonal agents.

U.S. Women's Knowledge of Reproductive Biology

BACKGROUND

Having accurate knowledge of reproductive biology can help women to improve their general, sexual, and reproductive health and assert their sexual and reproductive rights.

METHODS

This cross-sectional study examined knowledge of three topics (age-related fertility decline, egg supply, fertile period) among a national probability sample of 1,779 nonsterilized, English-speaking women (aged 18-29 years) in the U.S. general population. Using bivariate and multivariable regressions, we assessed associations between knowledge of these topics and individual characteristics.

RESULTS

Most respondents were unmarried (63%), childless (78%), and intended to have children (65%); 51% did not know whether they would have difficulty conceiving, and 44% had discussed fertility-related topics with a health care provider. More respondents knew the age of marked fertility decline (62%) than the fertile period (59%) or that ovaries do not continuously produce new eggs (45%); 22% knew all three topics, and 13% knew none. In multivariable analysis, knowledge was positively associated (p < .001) with education, income, and having regular periods. Black and Asian respondents and those for whom religion was very important were less likely (all p values < .01) than White and nonreligious respondents to know all three topics. Knowledge was unrelated to relationship status, parity, childbearing intentions, receipt of fertility-related counseling or services, self-perceived infertility risk, or health status; the relationship with Hispanic ethnicity approached but did not reach significance (p = .08).

CONCLUSIONS

Young U.S. women have incomplete knowledge of aspects of their reproductive biology; these knowledge gaps could increase their risk of adverse health and reproductive outcomes. Policy-, provider-, and client-level interventions are warranted to address these knowledge gaps.

Beneficial antioxidant effects of Coenzyme Q10 on reproduction

This chapter focuses on preclinical and clinical studies conducted in recent years that contribute to increasing knowledge on the role of Coenzyme Q10 in female reproductive health. General aspects of CoQ10, such as its role as an antioxidant and in mitochondrial bioenergetics are considered. The age-dependent decline in human female reproductive potential is associated with cellular mitochondrial dysfunction and oxidative stress, and in some cases accompanied by a decrease in CoQ10 levels. Herein, we discuss experimental and clinical evidence on CoQ10 protective effects on reproductive health. We also address the potential of supplementation with this coenzyme to rescue reprotoxicity induced by exposure to environmental xenobiotics. This review not only contributes to our general understanding of the effects of aging on female reproduction but also provides new insights into strategies promoting reproductive health. The use of CoQ10 supplementation can improve reproductive performance through the scavenging of reactive oxygen species and free radicals. This strategy can constitute a low-risk and low-cost strategy to attenuate the impact on fertility related to aging and exposure to environmental chemicals.

Fertility and assisted reproductive technologies outcomes of women with non-surgically managed inflammatory bowel diseases: a systematic review

BACKGROUND AND AIM

In view of their frequent onset during childbearing years, the impact of inflammatory bowel diseases (IBD) on reproductive health is of important concern to young women and to the IBD physician. This study aims to assess the fertility and assisted reproductive technologies outcomes in non-surgically treated IBD female.

METHODS

A systematic review was conducted using MEDLINE, SCOPUS and EMBASE (until March 2022) to identify studies assessing fertility and assisted reproductive technologies outcomes in women with non-operated IBD, compared to non-IBD patients. Two reviewers independently selected studies, assessed risk of bias and extracted study data.

RESULTS

A total of 14 studies encompassing 18 012 patients with ulcerative colitis (UC) and 14 353 patients with Crohn's disease (CD) were included for analysis. The fertility rate in UC patients and in the general population was comparable, but UC patients tended to have fewer children, mainly by choice. On the contrary, the fertility of CD patients appeared to be reduced. Although a deliberate component cannot be not excluded, the disease itself could affect fertility. Disease activity was associated with reduced fertility in both UC and CD patients. In CD, the colonic involvement of the disease and perianal damage could be associated with subfertility, but data are less consistent. According to the only study reporting the assisted reproductive technologies outcomes, pregnancy rates after in vitro fertilization in subfertile non-operated UC patients and non-IBD patients were similar.

CONCLUSION

There is low-quality evidence from observational studies that patients with CD and relapsing UC may have impaired fertility. After assisted reproductive technologies, pregnancy rates of subfertile nonoperated UC patients were similar to those of the general population, although this observation requires further scrutiny in larger studies that should include UC and CD patients.

The negative impact of timed intercourse in infertile couples: A prospective cohort study

Objective:

To study the differences in sexual dysfunction and time to pregnancy (TTP) between infertile couples pursuing timed intercourse (TI – around the time of ovulation) and regular intercourse (RI – at least twice a week).

Methods:

In this prospective cohort study, we recruited all infertile couples presenting to the regional infertility clinics from January 2016 to December 2018, pursuing TI ( n = 283) or RI ( n = 88), and having no pre-existing sexual or psychiatric illness, and no medical contraindications to frequent intercourse. Sexual dysfunction was assessed using the Arizona Sexual Experience Scale and the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition. The couples for whom natural conception was possible were followed up to determine TTP using Kaplan–Meier analysis.

Results:

TI significantly increased the risk of sexual dysfunction than RI for both males and females, even after adjusting for age, medical disorders, obesity, smoking, cause of infertility, and previous assisted reproductive techniques. TI increased the risk of erectile dysfunction, premature ejaculation, male hypoactive sexual dysfunction, female sexual interest-arousal disorder, and female orgasmic disorder. The TTP for natural conception was similar between them.

Conclusion:

TI increased the risk of sexual dysfunction without accelerating the time to achieve pregnancy, compared with RI.

Level of evidence:

Not applicable

Global Research Trends on Infertility and Psychology From the Past Two Decades: A Bibliometric and Visualized Study

Objectives

The aim of this study was to evaluate the global scientific output of research on infertility and psychology; explore the current status and trends in this field through the cooperation of authors, countries, and institutions; shed light on the direction of clinical infertility research in the future, and provide inspiration for targeted diagnosis and treatment of infertility.

Methods

Research publications on infertility and psychology from the past two decades were retrieved from the Web of Science Core Collection (WoSCC). Bibliometric analyses were performed using VOSviewer software and the bibliometrix R package. Network maps were generated to evaluate the collaborations between different authors, countries, institutions, and keywords.

Results

A total of 151 articles related to the study of infertility and psychology were identified. We observed a gradual increase in the number of publications from 2001 to 2021, and the trend has been relatively stable in the past eight years. Human Reproduction (England), as the leading journal publishing the most papers (29 articles), was cited in the most journals (1208 times). Boivin J was the most prolific author (16 articles), with the largest number of citations (890 times) and the highest h-index (14) during the past decades. Boivin J was also the leader with the highest publication frequency and more active cooperation with other top authors. The United Kingdom (34 papers) and Cardiff University (25 articles) contributed the most publications and were the leading contributors in this field. Active cooperation between countries and between institutions was observed, and analyses of articles and references were also shown. The main hot topics included matters related to women (39 times), in-vitro salt (31 times), infertility (30 times), couples (25 times), and impact (24 times).

Conclusion

Our study results provide a comprehensive overview of the development of scientific literature, allowing relevant authors and research teams to recognize the current research status in this field. At the same time, infertility and psychology may soon become hotspots and should be closely monitored.

Fertility Awareness-Based Methods for Women's Health and Family Planning

Background

Fertility awareness-based methods (FABMs) educate about reproductive health and enable tracking and interpretation of physical signs, such as cervical fluid secretions and basal body temperature, which reflect the hormonal changes women experience on a cyclical basis during the years of ovarian activity. Some methods measure relevant hormone levels directly. Most FABMs allow women to identify ovulation and track this "vital sign" of the menstrual or female reproductive cycle, through daily observations recorded on cycle charts (paper or electronic).

Applications

Physicians can use the information from FABM charts to guide the diagnosis and management of medical conditions and to support or restore healthy function of the reproductive and endocrine systems, using a restorative reproductive medical (RRM) approach. FABMs can also be used by couples to achieve or avoid pregnancy and may be most effective when taught by a trained instructor.

Challenges

Information about individual FABMs is rarely provided in medical education. Outdated information is widespread both in training programs and in the public sphere. Obtaining accurate information about FABMs is further complicated by the numerous period tracking or fertility apps available, because very few of these apps have evidence to support their effectiveness for identifying the fertile window, for achieving or preventing pregnancy.

Conclusions

This article provides an overview of different types of FABMs with a published evidence base, apps and resources for learning and using FABMs, the role FABMs can play in medical evaluation and management, and the effectiveness of FABMs for family planning, both to achieve or to avoid pregnancy.

Evaluation of Female Fertility-AMH and Ovarian Reserve Testing

CONTEXT

Evaluation of the infertile female requires an understanding of ovulation and biomarkers of ovarian reserve. Antimüllerian hormone (AMH) correlates with growing follicles in a menstrual cycle. Increasingly, AMH has been used as a "fertility test." This narrative review describes how to integrate the use of AMH into diagnosis and treatment.

METHODS

A PubMed search was conducted to find recent literature on measurements and use of serum AMH as a marker of ovarian reserve and in treatment of infertility.

RESULTS

Serum AMH estimates ovarian reserve, helps determine dosing in ovarian stimulation, and predicts stimulation response. As such, AMH is a good marker of oocyte quantity but does not reflect oocyte health or chances for pregnancy. Screening of AMH before fertility treatment should be used to estimate expected response and not to withhold treatment. Low AMH levels may suggest a shortened reproductive window. AMH levels must be interpreted in the context of the endogenous endocrine environment where low follicle-stimulating hormone, due to hypogonadotropic hypogonadism or hormonal contraceptive use, may lower AMH without being a true reflection of ovarian reserve. In addition, there is an inverse correlation between body mass index and AMH that does not reflect ovarian response.

CONCLUSION

AMH is a useful marker of ovarian reserve in reproductive-aged women. Increased screening of noninfertile women requires a thorough knowledge of situations that may affect AMH levels. In no situation does AMH reflect oocyte health or chances for conception. Age is still the strongest driver in determining success rates with fertility treatments.

Omega-3 fatty acid supplementation and fecundability

STUDY QUESTION

Is self-reported use of omega-3 fatty acid supplements associated with fecundability, the probability of natural conception, in a given menstrual cycle?

SUMMARY ANSWER

Prospectively recorded omega-3 supplement use was associated with an increased probability of conceiving.

WHAT IS KNOWN ALREADY

In infertile women, omega-3 fatty acid intake has been associated with increased probability of pregnancy following IVF. In natural fertility, studies are conflicting, and no study of natural fertility has evaluated omega-3 fatty acid supplementation and fecundity.

STUDY DESIGN, SIZE, DURATION

Secondary data analysis of 900 women contributing 2510 cycles in Time to Conceive (TTC), a prospective, time to pregnancy cohort study from 2008 to December 2015.

PARTICIPANTS/MATERIALS, SETTING, METHODS

Women aged 30-44 years, trying to conceive <3 months, without history of infertility were followed using standardized pregnancy testing. While attempting to conceive, women daily recorded menstrual cycle events and supplement and medication intake using the Cerner Multum Drug Database. Supplements and vitamins containing omega-3 were identified. Omega-3 use, defined as use in at least 20% of days in a given menstrual cycle, in each pregnancy attempt cycle was determined. A discrete-time Cox proportional hazards model was used to calculate the fecundability ratio.

MAIN RESULTS AND THE ROLE OF CHANCE

Women taking omega-3 supplementation were more likely to be younger, thinner, nulligravid, white and to take vitamin D, prenatal and multivitamins compared to women not taking omega-3s. After adjusting for age, obesity, race, previous pregnancy, vitamin D and prenatal and multivitamin use, women taking omega-3 supplements had 1.51 (95% CI 1.12, 2.04) times the probability of conceiving compared to women not taking omega-3s.

LIMITATIONS, REASONS FOR CAUTION

Our study was not a randomized controlled trial. The women who used omega-3 supplements may represent a more health-conscious population. We sought to address this by adjusting for multiple factors in our model. Additionally, the omega-3 fatty acid supplements that TTC participants used included multiple types and brands with varying dosages of omega-3 fatty acids. Women reported the type of supplement they were taking but not the concentration of omega-3s in that supplement. It is therefore not possible to compare dosing or a dose-response relationship in our study.

WIDER IMPLICATIONS OF THE FINDINGS

Omega-3 supplementation may present a feasible and inexpensive modifiable factor to improve fertility. Randomized controlled trials are needed to further investigate the benefits of omega-3 supplementation for women trying to conceive naturally.

STUDY FUNDING/COMPETING INTERESTS

This study was supported by the Division of Reproductive Endocrinology and Infertility at the University of North Carolina at Chapel Hill, the NIH/NICHD (R21 HD060229-01 and R01 HD067683-01), and in part by the Intramural Research Program of the National Institute of Environmental Health Sciences (Z01ES103333). The authors declare that there is no conflict of interest.

TRIAL REGISTRATION NUMBER

N/A.

Emotional Support for Infertility Patients: Integrating Mental Health Professionals in the Fertility Care Team

Patients seeking fertility treatment are at risk of experiencing psychological distress, with both women and men reporting higher levels of depression and anxiety during infertility treatment than patients in the general population. Multiple professional societies, fertility care providers, and patients have advocated for integrating mental health providers in the treatment of infertile patients in order to provide comprehensive patient-centered care. Research with other patient populations shows that embedding mental health professionals into clinics provides the greatest benefit to patients. Despite acknowledging the importance of mental health in infertility care, professional societies, such as ASRM and ESHRE, have not universally standardized recommendations or methods for imbedding mental health providers in the fertility team. This review article aims to serve as a resource for providers and patients to appraise the available literature on the importance of embedding mental health providers into the fertility treatment team and discusses feasible methods to develop this comprehensive care team.

Leukocyte Telomere Length Correlates with Extended Female Fertility

Current social trends of delayed reproduction to the fourth and fifth decade of life call for a better understanding of reproductive aging. Demographic studies correlated late reproduction with general health and longevity. Telomeres, the protective ends of eukaryotic chromosomes, were implicated in various aging-associated pathologies and longevity. To examine whether telomeres are also associated with reproductive aging, we measured by Southern analysis the terminal restriction fragments (TRF) in leukocytes of women delivering a healthy infant following a spontaneous pregnancy at 43–48 years of age. We compared them to age-matched previously fertile women who failed to conceive above age 41. The average TRF length in the extended fertility group (9350 bp) was significantly longer than in the normal fertility group (8850 bp; p-value = 0.03). Strikingly, excluding women with nine or more children increased the difference between the groups to over 1000 bp (9920 and 8880 bp; p-value = 0.0009). Nevertheless, we observed no apparent effects of pregnancy, delivery, or parity on telomere length. We propose that longer leukocyte telomere length reflects higher oocyte quality, which can compensate for other limiting physiological and behavioral factors and enable successful reproduction. Leukocyte telomere length should be further explored as a novel biomarker of oocyte quality for assessing reproductive potential and integrating family planning with demanding women’s careers.

Maternity After Orthotopic Liver Transplantation: Can the Use of Biological Fertility Indicators Help? Our Own Experience and Literature-based Recommendations

Over the last 5 decades, the fulfillment of maternity wishes in solid organ transplanted women has become a reality. Despite pregnancy contraindication in transplanted women during the early post-transplant period, such a condition can be overcome after 12 months if patients show a good clinical evolution and do not present other general pre-conceptional findings. This article presents the case report of a young female liver transplanted patient that used symptothermal method as a reliable family planning method. After her gestational contraindication was lifted, observation of biological fertility indicators and fertility-guided sexual intercourse helped her fulfill her maternity wish and conceive and carry out a healthy offspring. Based on this case and on the available bibliographic evidence, this paper reviews the potential implications of the use of this kind of approach as a safe and effective alternative to assisted reproduction technology in the management of potential infertility problems in the young female transplanted population, a population which according to literature has higher rates of unsuccessful parenthood and might also be more vulnerable to iatrogenicity of ovarian hyperstimulation process and to multiple pregnancy.

(Not) talking about fertility: the role of digital technologies and health services in helping plan pregnancy. A qualitative study

AIM

To explore how women and their partners navigate (pre)conception healthcare and the role of Natural Cycles fertility awareness technology in this process.

METHODS

In-depth interviews with 24 cisgender women aged 24-43 years who had used Natural Cycles' 'Plan a Pregnancy' mode, and six partners of Natural Cycles users, all cisgender men aged 30-39 years. Participants were recruited via direct messaging in the Natural Cycles app, social media and, for partners, snowball sampling. Purposive sampling was conducted to ensure diversity among participants. Interviews were audio-recorded and transcribed verbatim. An iterative, inductive approach was adopted for thematic data analysis.

RESULTS

Natural Cycles helped most users better understand their menstrual cycles and fertility. Fertility awareness and preconception counselling with healthcare providers were uncommon. Women felt discussions about planning pregnancy in healthcare settings were often fraught with difficulties. They described not wanting to be an extra burden to overworked staff, being concerned that their worries about trying for pregnancy would be dismissed, or feeling staff did not have expertise in fertility awareness. Some women had shared their Natural Cycles data with healthcare professionals to demonstrate their menstrual cycle data or time of conception. However, it was not always clear to those not accessing services when they should seek further advice, for example, those using the app for longer time periods who had not yet conceived.

CONCLUSIONS

Digital technologies can provide information and support for those wanting to conceive. They should, however, complement care in statutory services, and be accompanied by greater investment in fertility awareness and preconception support.

OUP accepted manuscript

Background

Inflammatory bowel disease (IBD) negatively affects fertility and fecundity. We aimed to determine longitudinal trends in and factors that affect pregnancy rates in women with ulcerative colitis (UC) and Crohn’s disease (CD).

Methods

Women in the University of Manitoba IBD Epidemiology Database aged 15 to 45 were identified between 1992 and 2018 and matched up to 10 non-IBD controls. Pregnancy and live birth rates were compared between women with and without UC or CD stratified by time-period, disease duration and maternal age at conception. Incidence rate ratios (IRR) with 95% confidence intervals (CI) were calculated. Poisson regression was used to adjust these rates for year of pregnancy, disease duration, maternal age, severity of IBD, and prior IBD-related surgery.

Results

Compared to controls, women with UC had lower rates of pregnancies (IRR 0.91, 95% CI: 0.82–0.99) and women with CD had lower rates of pregnancies (IRR 0.85, 95% CI: 0.79–0.93) and live births (IRR 0.83, 95% CI: 0.75–0.92). Although rates of pregnancies and live births were significantly lower in women with UC and CD compared to controls prior to 2010, there appeared to be no differences between the two groups after 2010. Prior intestinal surgery and active disease at conception appeared to lower pregnancy rates in women with UC and CD, respectively.

Conclusion

This study demonstrates that women with IBD have lower pregnancy rates compared to those without IBD, though these differences are no longer evident after 2010. Factors that continue to reduce these rates include prior colectomy and underlying disease activity.

Immune checkpoints and reproductive immunology: Pioneers in the future therapy of infertility related Disorders?

As co-stimulatory receptors, immune checkpoint molecules are found on the surface of various immune cells and transduce inhibitory signals following ligand binding. The most studied members in this regard include PD-1, TIM-3, and CTLA-4. The physiological part immune checkpoints possess is the prevention of dangerous immune attacks towards self-antigens throughout an immune response, which takes place through the negative regulation of the effector immune cells, through the induction of T-cell exhaustion, for instance. It has recently been suggested that each checkpoint reduces immunoactivation via distinct intracellular mechanisms of signaling. Regulators of immune checkpoints are supposed to participate actively in immune defense mechanisms against infections, preventing autoimmunity, transplantation, and tumor immune evasion. In pregnancy, as an active immunotolerance mechanism which is also natural, the maternal immune system encounters two simultaneous challenges; in addition to accepting the semi-allogeneic fetus, the maternal immune system should also prevent infections. In this regard, the part immune checkpoint molecules possess is particularly interesting. Herein, the current understanding of such part in reproductive immunology is described.

Diagnosis and Management of Infertility: A Review

IMPORTANCE

In the US, approximately 12.7% of reproductive age women seek treatment for infertility each year. This review summarizes current evidence regarding diagnosis and treatment of infertility.

OBSERVATIONS

Infertility is defined as the failure to achieve pregnancy after 12 months of regular unprotected sexual intercourse. Approximately 85% of infertile couples have an identifiable cause. The most common causes of infertility are ovulatory dysfunction, male factor infertility, and tubal disease. The remaining 15% of infertile couples have "unexplained infertility." Lifestyle and environmental factors, such as smoking and obesity, can adversely affect fertility. Ovulatory disorders account for approximately 25% of infertility diagnoses; 70% of women with anovulation have polycystic ovary syndrome. Infertility can also be a marker of an underlying chronic disease associated with infertility. Clomiphene citrate, aromatase inhibitors such as letrozole, and gonadotropins are used to induce ovulation or for ovarian stimulation during in vitro fertilization (IVF) cycles. Adverse effects of gonadotropins include multiple pregnancy (up to 36% of cycles, depending on specific therapy) and ovarian hyperstimulation syndrome (1%-5% of cycles), consisting of ascites, electrolyte imbalance, and hypercoagulability. For individuals presenting with anovulation, ovulation induction with timed intercourse is often the appropriate initial treatment choice. For couples with unexplained infertility, endometriosis, or mild male factor infertility, an initial 3 to 4 cycles of ovarian stimulation may be pursued; IVF should be considered if these approaches do not result in pregnancy. Because female fecundity declines with age, this factor should guide decision-making. Immediate IVF may be considered as a first-line treatment strategy in women older than 38 to 40 years. IVF is also indicated in cases of severe male factor infertility or untreated bilateral tubal factor.

CONCLUSIONS AND RELEVANCE

Approximately 1 in 8 women aged 15 to 49 years receive infertility services. Although success rates vary by age and diagnosis, accurate diagnosis and effective therapy along with shared decision-making can facilitate achievement of fertility goals in many couples treated for infertility.

Influence of social determinants on fertility: a critical review

PURPOSE OF REVIEW

Intrinsic factors, such as age, weight and lifestyle habits, together with extrinsic factors, such as socioeconomic level, must be considered when it comes to reproductive healthcare. Over the last few years, studies that attempt to respond to the participation and interaction of these factors in subfertility have been published; however, some questions remain unanswered.

RECENT FINDINGS

Although there are little modifiable factors for women, it is possible to influence other factors, such as behavioural or cultural factors in order to minimize fertility problems; however, they are often highly influenced by each other.

SUMMARY

Advanced age, obesity, sedentary lifestyle, alcohol, tobacco and other compounds, have a clearly negative effect and may extend time-to-pregnancy, although the responsible mechanisms and the magnitude of the detriment that they produce in the reproductive health are yet to be studied. Economic context and new environmental factors are a current challenge for reproductive health too.

An Integrative Review of Fertility Knowledge and Fertility-Awareness Practices Among Women Trying to Conceive

OBJECTIVE

To synthesize the literature on fertility knowledge and fertility-awareness among women seeking pregnancy.

DATA SOURCES

The search terms "fertility-awareness OR fertility knowledge AND women AND subfertile OR infertile OR seeking pregnancy OR trying to conceive OR pre-conception OR conception NOT contraception NOT birth control" were used via CINAHL, PubMed, and Web of Science. Primary research studies were considered in the search parameters.

STUDY SELECTION

Searches yielded 116 studies published between 1978 and 2020. After screening, 43 full-text studies were assessed for eligibility, 35 of which were omitted as not relevant. Nine quantitative studies using cross-sectional designs met this review's inclusion criteria.

DATA EXTRACTION

Studies were reviewed for information on the relationship between fertility knowledge/fertility-awareness and pregnancy intention. Studies examining the results of fertility-awareness based method (FABM) efficacy, FABMs for contraception, and provider knowledge regarding FABMs were omitted.

DATA SYNTHESIS

Analysis showed low knowledge regarding the identification of the fertile window in the menstrual cycle to optimize pregnancy. There was moderate general knowledge on fertility (e.g., infertility definition, age of fertility decline, etc.). Use of an FABM and education regarding FABMs were infrequent, yet participants recognized that it would be beneficial to use and learn when trying to conceive.

CONCLUSION

Women seeking pregnancy have low to moderate fertility knowledge. More research is necessary on the relationship between fertility knowledge/fertility-awareness and unexplained infertility. Nurses, nurse practitioners, and nurse-midwives should provide education on FABMs to women when they first report difficulty achieving pregnancy. Clinicians' approaches toward FABM education for women and how to implement FABM education into the preconception visit are important areas for future research.

Preconception lifestyle advice for people with infertility

BACKGROUND

Infertility is a prevalent problem that has significant consequences for individuals, families, and the community. Modifiable lifestyle factors may affect the chance of people with infertility having a baby. However, no guideline is available about what preconception advice should be offered. It is important to determine what preconception advice should be given to people with infertility and to evaluate whether this advice helps them make positive behavioural changes to improve their lifestyle and their chances of conceiving.

OBJECTIVES

To assess the safety and effectiveness of preconception lifestyle advice on fertility outcomes and lifestyle behavioural changes for people with infertility.

SEARCH METHODS

We searched the Cochrane Gynaecology and Fertility Group Specialised Register of controlled trials, CENTRAL, MEDLINE, Embase, PsycINFO, AMED, CINAHL, trial registers, Google Scholar, and Epistemonikos in January 2021; we checked references and contacted field experts to identify additional studies.

SELECTION CRITERIA

We included randomised controlled trials (RCTs), randomised cross-over studies, and cluster-randomised studies that compared at least one form of preconception lifestyle advice with routine care or attention control for people with infertility.

DATA COLLECTION AND ANALYSIS

We used standard methodological procedures recommended by Cochrane. Primary effectiveness outcomes were live birth and ongoing pregnancy. Primary safety outcomes were adverse events and miscarriage. Secondary outcomes included reported behavioural changes in lifestyle, birth weight, gestational age, clinical pregnancy, time to pregnancy, quality of life, and male factor infertility outcomes. We assessed the overall quality of evidence using GRADE criteria.

MAIN RESULTS

We included in the review seven RCTs involving 2130 participants. Only one RCT included male partners. Three studies compared preconception lifestyle advice on a combination of topics with routine care or attention control. Four studies compared preconception lifestyle advice on one topic (weight, alcohol intake, or smoking) with routine care for women with infertility and specific lifestyle characteristics. The evidence was of low to very low-quality. The main limitations of the included studies were serious risk of bias due to lack of blinding, serious imprecision, and poor reporting of outcome measures. Preconception lifestyle advice on a combination of topics versus routine care or attention control Preconception lifestyle advice on a combination of topics may result in little to no difference in the number of live births (risk ratio (RR) 0.93, 95% confidence interval (CI) 0.79 to 1.10; 1 RCT, 626 participants), but the quality of evidence was low. No studies reported on adverse events or miscarriage. Due to very low-quality evidence, we are uncertain whether preconception lifestyle advice on a combination of topics affects lifestyle behavioural changes: body mass index (BMI) (mean difference (MD) -1.06 kg/m², 95% CI -2.33 to 0.21; 1 RCT, 180 participants), vegetable intake (MD 12.50 grams/d, 95% CI -8.43 to 33.43; 1 RCT, 264 participants), alcohol abstinence in men (RR 1.08, 95% CI 0.74 to 1.58; 1 RCT, 210 participants), or smoking cessation in men (RR 1.01, 95% CI 0.91 to 1.12; 1 RCT, 212 participants). Preconception lifestyle advice on a combination of topics may result in little to no difference in the number of women with adequate folic acid supplement use (RR 0.98, 95% CI 0.95 to 1.01; 2 RCTs, 850 participants; I² = 4%), alcohol abstinence (RR 1.07, 95% CI 0.99 to 1.17; 1 RCT, 607 participants), and smoking cessation (RR 1.01, 95% CI 0.98 to 1.04; 1 RCT, 606 participants), on low quality evidence. No studies reported on other behavioural changes. Preconception lifestyle advice on weight versus routine care Studies on preconception lifestyle advice on weight were identified only in women with infertility and obesity. Compared to routine care, we are uncertain whether preconception lifestyle advice on weight affects the number of live births (RR 0.94, 95% CI 0.62 to 1.43; 2 RCTs, 707 participants; I² = 68%; very low-quality evidence), adverse events including gestational diabetes (RR 0.78, 95% CI 0.48 to 1.26; 1 RCT, 317 participants; very low-quality evidence), hypertension (RR 1.07, 95% CI 0.66 to 1.75; 1 RCT, 317 participants; very low-quality evidence), or miscarriage (RR 1.50, 95% CI 0.95 to 2.37; 1 RCT, 577 participants; very low-quality evidence). Regarding lifestyle behavioural changes for women with infertility and obesity, preconception lifestyle advice on weight may slightly reduce BMI (MD -1.30 kg/m², 95% CI -1.58 to -1.02; 1 RCT, 574 participants; low-quality evidence). Due to very low-quality evidence, we are uncertain whether preconception lifestyle advice affects the percentage of weight loss, vegetable and fruit intake, alcohol abstinence, or physical activity. No studies reported on other behavioural changes. Preconception lifestyle advice on alcohol intake versus routine care Studies on preconception lifestyle advice on alcohol intake were identified only in at-risk drinking women with infertility. We are uncertain whether preconception lifestyle advice on alcohol intake affects the number of live births (RR 1.15, 95% CI 0.53 to 2.50; 1 RCT, 37 participants; very low-quality evidence) or miscarriages (RR 1.31, 95% CI 0.21 to 8.34; 1 RCT, 37 participants; very low-quality evidence). One study reported on behavioural changes for alcohol consumption but not as defined in the review methods. No studies reported on adverse events or other behavioural changes. Preconception lifestyle advice on smoking versus routine care Studies on preconception lifestyle advice on smoking were identified only in smoking women with infertility. No studies reported on live birth, ongoing pregnancy, adverse events, or miscarriage. One study reported on behavioural changes for smoking but not as defined in the review methods.

AUTHORS' CONCLUSIONS

Low-quality evidence suggests that preconception lifestyle advice on a combination of topics may result in little to no difference in the number of live births. Evidence was insufficient to allow conclusions on the effects of preconception lifestyle advice on adverse events and miscarriage and on safety, as no studies were found that looked at these outcomes, or the studies were of very low quality. This review does not provide clear guidance for clinical practice in this area. However, it does highlight the need for high-quality RCTs to investigate preconception lifestyle advice on a combination of topics and to assess relevant effectiveness and safety outcomes in men and women with infertility.

Fecundability in relation to use of mobile computing apps to track the menstrual cycle

STUDY QUESTION

To what extent does the use of mobile computing apps to track the menstrual cycle and the fertile window influence fecundability among women trying to conceive?

SUMMARY ANSWER

After adjusting for potential confounders, use of any of several different apps was associated with increased fecundability ranging from 12% to 20% per cycle of attempt.

WHAT IS KNOWN ALREADY

Many women are using mobile computing apps to track their menstrual cycle and the fertile window, including while trying to conceive.

STUDY DESIGN, SIZE, DURATION

The Pregnancy Study Online (PRESTO) is a North American prospective internet-based cohort of women who are aged 21-45 years, trying to conceive and not using contraception or fertility treatment at baseline.

PARTICIPANTS/MATERIALS, SETTING, METHODS

We restricted the analysis to 8363 women trying to conceive for no more than 6 months at baseline; the women were recruited from June 2013 through May 2019. Women completed questionnaires at baseline and every 2 months for up to 1 year. The main outcome was fecundability, i.e. the per-cycle probability of conception, which we assessed using self-reported data on time to pregnancy (confirmed by positive home pregnancy test) in menstrual cycles. On the baseline and follow-up questionnaires, women reported whether they used mobile computing apps to track their menstrual cycles ('cycle apps') and, if so, which one(s). We estimated fecundability ratios (FRs) for the use of cycle apps, adjusted for female age, race/ethnicity, prior pregnancy, BMI, income, current smoking, education, partner education, caffeine intake, use of hormonal contraceptives as the last method of contraception, hours of sleep per night, cycle regularity, use of prenatal supplements, marital status, intercourse frequency and history of subfertility. We also examined the impact of concurrent use of fertility indicators: basal body temperature, cervical fluid, cervix position and/or urine LH.

MAIN RESULTS AND THE ROLE OF CHANCE

Among 8363 women, 6077 (72.7%) were using one or more cycle apps at baseline. A total of 122 separate apps were reported by women. We designated five of these apps before analysis as more likely to be effective (Clue, Fertility Friend, Glow, Kindara, Ovia; hereafter referred to as 'selected apps'). The use of any app at baseline was associated with 20% increased fecundability, with little difference between selected apps versus other apps (selected apps FR (95% CI): 1.20 (1.13, 1.28); all other apps 1.21 (1.13, 1.30)). In time-varying analyses, cycle app use was associated with 12-15% increased fecundability (selected apps FR (95% CI): 1.12 (1.04, 1.21); all other apps 1.15 (1.07, 1.24)). When apps were used at baseline with one or more fertility indicators, there was higher fecundability than without fertility indicators (selected apps with indicators FR (95% CI): 1.23 (1.14, 1.34) versus without indicators 1.17 (1.05, 1.30); other apps with indicators 1.30 (1.19, 1.43) versus without indicators 1.16 (1.06, 1.27)). In time-varying analyses, results were similar when stratified by time trying at study entry (<3 vs. 3-6 cycles) or cycle regularity. For use of the selected apps, we observed higher fecundability among women with a history of subfertility: FR 1.33 (1.05-1.67).

LIMITATIONS, REASONS FOR CAUTION

Neither regularity nor intensity of app use was ascertained. The prospective time-varying assessment of app use was based on questionnaires completed every 2 months, which would not capture more frequent changes. Intercourse frequency was also reported retrospectively and we do not have data on timing of intercourse relative to the fertile window. Although we controlled for a wide range of covariates, we cannot exclude the possibility of residual confounding (e.g. choosing to use an app in this observational study may be a marker for unmeasured health habits promoting fecundability). Half of the women in the study received a free premium subscription for one of the apps (Fertility Friend), which may have increased the overall prevalence of app use in the time-varying analyses, but would not affect app use at baseline. Most women in the study were college educated, which may limit application of results to other populations.

WIDER IMPLICATIONS OF THE FINDINGS

Use of a cycle app, especially in combination with observation of one or more fertility indicators (basal body temperature, cervical fluid, cervix position and/or urine LH), may increase fecundability (per-cycle pregnancy probability) by about 12-20% for couples trying to conceive. We did not find consistent evidence of improved fecundability resulting from use of one specific app over another.

STUDY FUNDING/COMPETING INTEREST(S)

This research was supported by grants, R21HD072326 and R01HD086742, from the Eunice Kennedy Shriver National Institute of Child Health and Human Development, USA. In the last 3 years, Dr L.A.W. has served as a fibroid consultant for AbbVie.com. Dr L.A.W. has also received in-kind donations from Sandstone Diagnostics, Swiss Precision Diagnostics, FertilityFriend.com and Kindara.com for primary data collection and participant incentives in the PRESTO cohort. Dr J.B.S. reports personal fees from Swiss Precision Diagnostics, outside the submitted work. The remaining authors have nothing to declare.

TRIAL REGISTRATION NUMBER

N/A.

Guidelines informing counseling on female age-related fertility decline: a systematic review

PURPOSE

To identify, appraise, and assess clinical practice guidelines informing patient counseling on female age-related fertility decline.

METHODS

Searched electronic database records from January 1, 2006, to September 10, 2018, and professional society websites. The search terms included iterations of "guideline," "counseling," "preconception," "age-related fertility decline," and "reproductive life planning." English-language professional organization guidelines addressing patient counseling on age-specific reproductive health topics were included. Assessed the methodological quality of included guidelines using the AGREE II instrument. Guidelines were categorized as high quality or low quality based on AGREE II scores. Extracted age-specific reproductive health recommendations of high-quality guidelines.

RESULTS

The search identified 2918 records. Nineteen records addressed counseling on age-related fertility decline; only 6 focused only on reproductive aging, with the remaining 13 covering related topics. Eleven met criteria for high quality. All high-quality guidelines had high "rigor of development" scores on AGREE II. Ten high-quality guidelines stated an age at which female fertility declines, ranging from 30 to "late 30s." One recommended a specific age at which patients should be counseled. Five of eleven high-quality guidelines did not discuss the obstetric and perinatal risks of advanced maternal age.

CONCLUSIONS

Few high-quality guidelines address counseling on female age-related fertility decline, and existing guidance on reproductive aging counseling is inconsistent and incomplete. Greater rigor of development and incorporation of age-specific counseling recommendations into clinical practice guidelines could lead to improved patient anticipatory guidance and more informed reproductive choices.

A multicenter randomized controlled trial protocol to evaluate the effectiveness of an educational intervention on fertility knowledge, intention and behavior among Iranian new couples

Background

Recent evidence shows that men and women have inadequate fertility knowledge which may negatively affect their childbearing decisions in future. Given the fact that decision making for fertility needs accurate information, targeted educational interventions especially through media are needed to improve knowledge regarding the best age of fertility, factors affecting fertility potential and fertility options available for sub-fertile couples. Aim of the study is to evaluate whether a fertility educational program can be effective in increasing fertility knowledge, childbearing intention and the planned pregnancy rate among couples referring to premarital counselling centers.

Methods

This study is a parallel randomised clinical trial with pre-test/post-test design. We will recruit 1240 marrying couples referring for compulsory premarital counselling in public health centers through stratified sampling in five metropolitan cities of Iran. The intervention group will receive both the typical premarital counselling training and a fertility knowledge package containing verbal and virtual educational package at five time episodes (one verbal session and four virtual sessions) within 4 weeks. The primary outcomes are fertility knowledge, childbearing intention and the first planned pregnancy rate (positive pregnancy test) and the secondary outcomes include contraception method use, miscarriage and unplanned pregnancy. Participants will respond to a self-administered demographic/reproductive characteristics questionnaire, the Cardiff Fertility Knowledge Scale (CFKS) and the childbearing intention questionnaire.

Data will be collected through online questionnaires at baseline and 3, 12 and 18 months after the intervention. Data will be analyzed using Chi-square or Fisher-exact test for categorical variables, Independent sample t-test for normally distributed quantitative variables and Mann–Whitney U test for non-normally distributed quantitative variables. To compare the outcomes between the two groups over the time, repeated measures ANOVA will be used. We hypothesize that the positive impact of increasing the fertility knowledge is the reduced involuntarily childlessness.

Discussion

The findings are proposed to inform government policies and public education strategies aiming at supporting childbearing among young couples who postpone their first pregnancy while they might not have any important social and economic obstacles.

Trial registration

This study was approved by Iranian Registry of Clinical Trials (IRCT), Number: IRCT20201005048925N1, Date of registration: 2020-10-12.

Association of the serum metabolomic profile by nuclear magnetic resonance spectroscopy with sperm parameters: a cross-sectional study of 325 men

OBJECTIVE

To determine whether 155 circulating metabolic measures relevant to lifestyle and metabolic health are associated with sperm parameters, as measured by concentration, motility, and total motile sperm count (TMSC).

STUDY DESIGN

Cross sectional.

SETTING

University hospital.

PATIENT(S)

Three hundred twenty-five men prospectively recruited between April 1, 2017 and March 31, 2019.

INTERVENTION(S)

Detailed demographic, lifestyle, fertility, medical history, and semen analysis with quantification of nonfasting serum lipids, lipoprotein subclasses, and low-molecular weight metabolites (including amino acids, glycolysis, and inflammatory markers) by nuclear magnetic resonance (NMR) spectroscopy.

MAIN OUTCOME MEASURE(S)

Association of serum metabolic profiles with sperm parameters.

RESULT(S)

The age of the participants was mean 37.2 years, with a median sperm concentration of 35 million/mL and median motility of 53%. Of these men, 76% had a TMSC >15 million, 10% had 5-15 million, and 14% had <5 million. In both univariate and confounder adjusted analyses, an extensive range of lipids and lipoproteins, glycolysis-related metabolites, amino acids, ketone bodies, creatinine, or albumin showed no strong statistically significant association with sperm concentration, motility, or the odds of having a reduced or low TMSC. Higher levels of glycolysis metabolites and ketone bodies were associated with an increased odds of TMSC <15 million compared with ≥15 million (odds ratios of ∼1.2-1.3), and several lipids/lipoprotein concentrations appeared to protect against very low TMSC (<5 million compared with ≥5 million) with odds ratios of ∼0.8 or greater.

CONCLUSION(S)

Several metabolites exhibited potentially clinically relevant strength of association with the odds of a low TMSC and warrant replication.

Individual and Relational Well-Being at the Start of an ART Treatment: A Focus on Partners' Gender Differences

Infertility and ART treatments represent stressful experiences for the couples, impacting on the overall psychological well-being of partners as well as on their couple adjustment. Several variables were analyzed as risk factors for infertility-related distress. The impact of these experiences has been well-documented in both women and men, reporting important gender differences. The aim of this study was to assess gender differences in individual and relational well-being in infertile couples. Gender differences for psychological and medical variables predicting psychological distress were investigated. Two hundred and thirty couples who entered an ART program at a public hospital in Milan were recruited. Each partner completed the following scales: ScreenIVF, Dyadic Adjustment Scale, and Experience in Close Relationship Questionnaire. Findings revealed several gender differences with women reporting higher levels of both anxiety and depressive symptoms, anxiety and avoidance attachment, and helplessness, but lower levels of acceptance than men. Differences emerged also in factors predicting well-being: poor support predicted anxiety in men and depression in women. Furthermore, individual well-being was predicted only for men by attachment anxiety and previous treatment. Finally, in the women subsample, couple’s adjustment was predicted by anxiety attachment, while in men predictors were helplessness and type of diagnosis. These results suggest the importance of implementing support interventions for couples which take into consideration the specific needs and fragility of each partner as well as focusing on enhancing a sense of partnership.

Long-term endocrine disorders in children born from pregnancies conceived following fertility treatments

BACKGROUND

Despite the endocrine basis of several infertility etiologies, data on long-term endocrine consequences in offspring conceived following fertility treatments remain limited.

AIM

To determine the risk of long-term endocrine disorders among children born after in-vitro fertilization (IVF) and ovulation induction (OI) as compared with spontaneous pregnancies.

STUDY DESIGN, SUBJECTS, AND OUTCOME MEASURES

A population-based cohort study including all singleton deliveries occurring between 1991 and 2014 at a single tertiary medical center was performed. Hospitalization rates up to the age of 18 years involving endocrine disorders were compared between children delivered following pregnancies achieved by IVF, OI, and spontaneous pregnancies. A Kaplan-Meier survival curve was used to compare cumulative morbidity incidence. A Cox regression model was used to control for confounders.

RESULTS

During the study period, 242,187 singleton deliveries met the inclusion criteria; 1.0% were following IVF (n = 2603), 0.7% following OI (n = 1721), and the remaining (n = 237,863) were following spontaneous conceptions. Hospitalizations up to the age of 18 years involving endocrine disorders were comparable in children delivered following IVF (0.4%), OI (0.8%) and spontaneous pregnancies (0.5%; p = 0.09). The Kaplan-Meier survival curve demonstrated comparable cumulative incidence of endocrine morbidity following IVF and OI (log-rank p = 0.30). Using the Cox regression model while controlling for confounders, no significant association was noted between IVF (adjusted HR = 0.95, CI 0.51-1.87), or OI (adjusted HR = 1.32, CI 0.78-2.24) conceived pregnancies, and long-term pediatric endocrine morbidity.

CONCLUSIONS

Singletons conceived via fertility treatment do not appear to be at an increased risk for long-term endocrine disorders.

The quality of information about elective oocyte cryopreservation (EOC) on Australian fertility clinic websites

BACKGROUND

The number of women who undergo elective oocyte cryopreservation (EOC) in the hope of preserving their fertility is increasing. Fertility clinic websites often serve as the first point of contact for women contemplating EOC. There are no guidelines for Australian fertility clinics regarding how information about procedures should be presented.

AIM

To assess the quality of information presented on EOC on Australian fertility clinic websites.

MATERIALS AND METHODS

A desktop audit was conducted of the websites of Australian fertility clinics offering EOC (n = 21) and the information provided about EOC was recorded. To allow comparison, a scoring matrix used in a study of the quality of EOC information on clinic websites in the USA was used to assess the quality of the information. The possible range of scores on this measure is 0-13.

RESULTS

The mean information quality score for all clinic websites was 4.3 (range 2-8). More than half of the clinic websites (57%) had scores classified as 'poor', indicating that women are not receiving the information they need to make well-informed choices.

CONCLUSION

Providing information on clinic websites that is transparent and scientifically accurate, that states the risks involved in the procedure, and its full cost is essential to allow women to make informed decisions. The scoring matrix used in this study to assess the quality of information relating to EOC can guide best practice for clinics in advertising EOC to prospective customers.

Emerging Trends in Research on Food Compounds and Women’s Fertility: A Systematic Review

Pro-healthy behaviours, including the diet, are significant factors in maintaining women’s fertility health. However, to improve the patient’s nutrition management, it is important to seek food-derived bioactive compounds to support fertility treatment. This review analysed recent studies of food compounds related to fertility, using databases including PubMed, Web of Science and Science Direct as well as PRISMA (preferred reporting items for systematic reviews) to ensure complete and transparent reporting of systematic reviews. This review lists foods associated with a higher birth rate, using original papers from the last five years (2015). The analysis included the impact of food compounds such as caffeine, fatty acids, folates and vitamin D, as well as the intake of fish, whole grains, dairy and soya. In addition, dietary patterns and total diet composition supporting women’s fertility were also analysed. The results will encourage further research on the relationship between food components and fertility.

Regret over the delay in childbearing decision negatively associates with life satisfaction among Japanese women and men seeking fertility treatment: a cross-sectional study

BACKGROUND

Currently, in developed countries, increasing numbers of women and men are delaying childbearing but begin seeking fertility treatment later in life. Some women undergoing infertility treatment develop negative feelings such as depression associated with low life satisfaction and regret over the delay in childbearing. We therefore examine the association of life satisfaction with regret over the delay in childbearing decision and infertility-related factors among Japanese women and men seeking fertility treatment.

METHODS

This cross-sectional study included 253 women and 196 men referred to fertility facilities in Japan from July to December 2018. Participants completed a questionnaire on life satisfaction, regret over the delay in childbearing decision, infertility-related factors and sociodemographic characteristics. Life satisfaction was measured using the Satisfaction with Life Scale (SWLS), and the degree of regret over delay in childbearing decision was measured on a 7-point Likert scale. Multiple linear regressions, conducted separately by sex, were used to analyze the association of life satisfaction with regret over the delay in childbearing decision and infertility-related factors.

RESULTS

Of the 253 women and 196 men, 102 (40.3%) women and 43 (21.9%) men answered "strongly agree" regarding their regret over the delay in childbearing decision. Among women, life satisfaction was negatively associated with regret (β = - 0.155, 95% CI [- 0.938, - 0.093], p = 0.017), use of assisted reproduction technology (ART) (β = - 0.135, 95% CI [- 2.977, - 0.020], p = 0.047). In contrast, previous live birth was positively associated with life satisfaction (β = 0.134, 95% CI [0.122, 3.739], p = 0.037). In men, we found no significant association of life satisfaction with regret over the delay in childbearing decision and infertility-related factors.

CONCLUSIONS

Regret over the delay in childbearing decision is negatively associated with life satisfaction among Japanese women seeking fertility treatment. It may be important for women to make better informed decision regarding the timing of childbearing to not regret later in life. Health professionals should address regret over the delay in childbearing decision during fertility treatment and explore ways to spread information on fertility awareness.

Impact of contraception and IVF hormones on metabolic, endocrine, and inflammatory status

Assisted reproductive technologies (ART) represent commonly utilized management strategies for infertility with multifactorial causes (including genetically predisposed diseases). Amongst ART, in vitro fertilization (IVF) is the most popular. IVF treatment may predispose the mother to increased risks and complications during pregnancy, and there may be adverse fetal outcomes. Hormonal therapies, including oral contraceptives, may impair glucose and lipid metabolism, and promote insulin resistance and inflammation. IVF treatment involves administration of reproductive hormones, similar in composition but in much higher doses than those used for oral contraception. The provision of IVF reproductive hormones to mice associates with glucose intolerance. In addition, the physiological and hormonal changes of pregnancy can trigger an inflammatory response, and metabolic and endocrine changes. There is controversy regarding the potential effects of IVF hormonal therapies in the promotion of diabetogenic and inflammatory states, additional to those that occur during pregnancy, and which may therefore predispose women with IVF-conceived pregnancies to adverse obstetric outcomes compared with women with spontaneously conceived pregnancies. This review summarizes the limited published evidence regarding the effect of IVF-based fertility therapies on glucose homeostasis, insulin resistance, cardio-metabolic profile, and markers of inflammation.

Comparison of woman-picked, expert-picked, and computer-picked Peak Day of cervical mucus with blinded urine luteinising hormone surge for concurrent identification of ovulation

BACKGROUND

Previous research has demonstrated that women instructed in fertility awareness methods can identify the Peak Day of cervical mucus discharge for each menstrual cycle, and the Peak Day has high agreement with other indicators of the day of ovulation. However, previous studies enrolled experienced users of fertility awareness methods or were not fully blinded.

OBJECTIVE

To assess the agreement between cervical mucus Peak Day identified by fertile women without prior experience on assessing cervical mucus discharge with the estimated day of ovulation (1 day after urine luteinising hormone surge).

METHODS

This study is a secondary analysis of data from a randomised trial of the Creighton Model FertilityCareTM System (CrM), conducted 2003-2006, for women trying to conceive. Women who had no prior experience tracking cervical mucus recorded vulvar observations daily using a standardised assessment of mucus characteristics for up to seven menstrual cycles. Four approaches were used to identify the Peak Day. The referent day was defined as one day after the first identified day of luteinising hormone (LH) surge in the urine, assessed blindly. The percentage of agreement between the Peak Day and the referent day of ovulation was calculated.

RESULTS

Fifty-seven women with 187 complete cycles were included. A Peak Day was identified in 117 (63%) cycles by women, 185 (99%) cycles by experts, and 187 (100%) by computer algorithm. The woman-picked Peak Day was the same as the referent day in 25% of 117 cycles, within ±1 day in 58% of cycles, ±2 days in 84%, ±3 days in 87%, and ±4 days in 92%. The ±1 day and ± 4 days' agreement was 50% and 90% for the expert-picked and 47% and 87% for the computer-picked Peak Day, respectively.

CONCLUSIONS

Women's daily tracking of cervical mucus is a low-cost alternative for identifying the estimated day of ovulation.

Seven Years of Vitrified Blastocyst Transfers: Comparison of 3 Preparation Protocols at a Single ART Center

Introduction: Frozen-thawed embryo transfers (FET) have become a standard practice to increase cumulative pregnancy rates, however, the choice of the best preparation protocol remains a matter of debate. Design: Retrospective analysis of clinical pregnancy (CPR) and live birth rate (LBR) of FET in natural cycles (NC-FET), modified natural cycles with hCG-triggered ovulation (mNC-FET), and hormonal artificial replacement (AR-FET). Materials and Methods: For natural cycles, patients were monitored by ultrasound to evaluate the dominant follicle and by urinary LH kits (NC-FET). When the endometrial thickness reached at least 7 mm and the dominant follicle 16-20 mm, hCG was administered in absence of urinary LH surge (mNC-FET). Embryo thawing and transfer was planned 7 days after LH surge or hCG administration. For the AR-FET, oral estradiol valerate was administered from day 2 of menstrual cycle until endometrial thickness reached at least 7 mm and transfer was planned after 5 days of vaginal progesterone start. Only single vitrified blastocyst transfers were included. Results: In total 2,895 transfers were performed of which 561 (19.4%) carried out with NC-FET, 1,749 (60.4%) with mNC-FET and 585 (20.2%) with AR-FET. CPRs were 32.62, 43.05, and 37.26%, respectively. LBR were 24.06, 33.56, and 25.81%, respectively. A statistically significant (p < 0.001) higher LBR for mNC-FET vs. NC-FET (OR 0.49-0.78) and AR-FET (OR 0.47-0.74) was observed. A higher ectopic pregnancy rate (p = 0.002) was observed in NC-FET (3.28%) than in AR-FET (1.83%) and mNC-FET (0.40%). A higher abortion rate (p = 0.031) in pregnancies <12 weeks was observed in AR-FET (27.52%) than in NC-FET (19.67%) and in mNC-FET (19.39%). At Post hoc analysis only female age (OR 0.91-0.95), antimullerian hormone (AMH) (OR 1.01-1.07) and mNC-FET (OR 1.39-1.98) were statically significant prognostic factors for LBRs. Conclusions: These results demonstrate a superior CPR and LBR following FET in hCG-triggered ovulation cycles compared to NC and AR-FET, a higher ectopic pregnancy rate in NC-FET and a higher abortion rate in pregnancies <12 weeks in AR-FET. However, these data need to be confirmed in randomized and prospective studies before definitive conclusions can be drawn. Clinicaltrials.gov ID: NCT03581422.

Sexual health and fertility for individuals with inflammatory bowel disease

The impact of a chronic disease such as inflammatory bowel disease (IBD) on sexual functioning and body image can significantly impair the quality of life of patients. This review considers the sexual and fertility aspects of IBD patients and their daily management. Modern IBD healthcare management should include appropriate communication on sexuality and consider psychological, physiological, and biological issues. Patients with IBD have less children than the general population, and voluntary childlessness is frequent. The most influential factors reported by IBD patients who experience fertility alteration are psychological and surgery-related problems. Pregnancy is a major concern for patients, and any pregnancy for IBD patients should be closely followed-up to keep the chronic disease in a quiescent state. Preconceptional consultation is of great help.

Uterine Cells Improved Ovarian Function in a Murine Model of Ovarian Insufficiency

Primary ovarian insufficiency (POI) is defined as ovarian dysfunction in women younger than 40 years. It affects 1% of the women in this age-group and can occur iatrogenically after chemotherapy. Stem cells have been used in attempt to restore ovarian function in POI. In particular, endometrial mesenchymal stem cells (eMSCs) are easily obtainable in humans and have shown great potential for regenerative medicine. Here, we studied the potential for uterine cell (UC) suspensions containing eMSCs to improve ovarian function in a murine model of chemotherapy-induced POI. Green fluorescent protein (GFP)-labeled UC or phosphate-buffered solution (PBS) was delivered intravenously after chemotherapy. There was a significant increase in oocytes production and serum anti-Müllerian hormone concentrations after 6 weeks, as well as a 19% higher body mass in UC-treated mice. Similarly, we observed an increased number of pups in mice treated with UC than in mice treated with PBS. None of the oocytes or pups incorporated GFP, suggesting that there was no contribution of these stem cells to the oocyte pool. We conclude that treatment with UC indirectly improved ovarian function in mice with chemotherapy-induced POI. Furthermore, our study suggests that endometrial stem cell therapy may be beneficial to young women who undergo ovotoxic chemotherapy.

Availability of Services Related to Achieving Pregnancy in U.S. Publicly Funded Family Planning Clinics

BACKGROUND

Recognizing that quality family planning services should include services to help clients who want to become pregnant, the objective of our analysis was to examine the distribution of services related to achieving pregnancy at publicly funded family planning clinics in the United States.

METHODS

A nationally representative sample of publicly funded clinics was surveyed in 2013-2014 (n = 1615). Clinic administrators were asked about several clinical services and screenings related to achieving pregnancy: basic infertility services, reproductive life plan assessment, screening for body mass index, screening for sexually transmitted diseases, provision of natural family planning services, infertility treatment, and primary care services. The percentage of clinics offering each of these services was compared by Title X funding status; prevalence ratios (PRs) and 95% confidence intervals (CIs) were estimated after adjusting for clinic characteristics.

RESULTS

Compared to non-Title X clinics, Title X clinics were more likely to offer reproductive life plan assessment (adjusted PR [aPR], 1.62; 95% CI, 1.42-1.84), body mass index screening for men (aPR, 1.10; 95% CI, 1.01-1.21), screening for sexually transmitted diseases (aPRs ranged from 1.21 to 1.37), and preconception health care for men (aPR, 1.10; 95% CI, 1.01-1.20). Title X clinics were less likely to offer infertility treatment (aPR, 0.55; 95% CI, 0.40-0.74) and primary care services (aPR, 0.74; 95% CI, 0.68-0.80) and were just as likely to offer basic infertility services, preconception health care services for women, natural family planning, and body mass index screening in women.

CONCLUSIONS

The availability of selected services related to achieving pregnancy differed by Title X status. A follow-up assessment after publication of national family planning recommendations is underway.

Observational Study of the Social Determinants of Health in Subfertile versus Nonsubfertile Women

CONTEXT

Subfertility affects about 15% of couples worldwide. There are several factors that affect subfertility called social determinants of health (SDH): biological factors as age, ethnic origin, and body mass index; behavioral factors as alcohol intake, smoking, coffee, dietary restriction, physical activity, and psychological state; and contextual factors as education, work activity, and income level.

AIMS

The aim of the study is to evaluate the distribution's relevance of the SDH in subfertile women versus nonsubfertile women.

SETTINGS AND DESIGN

A prospective comparative study with two groups of women recruited over 1 year at hospital consultation: one group with subfertile women excluding women without a male partner or with a previous child and another one formed by primigravidae, excluding those receiving assisted reproduction techniques to become pregnant.

SUBJECTS AND METHODS

We compare the different factors between subfertile and nonsubfertile women one by one. Second, a multivariate analysis was conducted with logistic regression. In all cases, informed consent was obtained.

RESULTS

Regular physical exercise 3-4 times/week (odds ratio [OR]: 0.33, 95% confidence interval [CI]: 0.15-0.71) or healthy food products such as fish 1-2 times/week (OR: 0.40, 95% CI: 0.17-0.95) were associated with nonsubfertile women.

CONCLUSIONS

The distribution of SDH in natural fertility is not altogether homogeneous. Weight control by means of restricting calorie intake, greater consumption of healthy foods such as fish, regular physical exercise, and lower age are positively associated with fertility. Population-level intervention is possible to improve women's health, as these are modifiable factors. Ethnic origin can be considered as a relevant factor, as it may condition the distribution of other determinants.

Resolving speculations of methodological inadequacies in the standardized protocol for characterizing women's fertility: Comment on Lobmaier and Bachofner (2018)

Lobmaier and Bachofner (2018) suggest a series of methodological practices to increase the accuracy and reliability of determining a woman's fertile window, claiming the standardized protocol for characterizing women's fertility by Blake et al. (2016) is inadequate. These practices include observing participants for purportedly fertile sessions a considerable time before the LH surge, and using salivary ferning and cervical mucus evaluation as real-time measures of current fertility. Here I explain that Lobmaier and Bachofner's (2018) recommendations decrease rather than increase the likelihood of observing women during peak fertility. I also summarize the pertinent literature on salivary ferning and cervical mucus evaluations, showing that neither method has sufficient sensitivity and specificity to characterize peak fertility. Using meta-analytic data of 10K menstrual cycles, I then show that the protocol provided by Blake et al. (2016) recruits women when conception probability is at its peak and is statistically higher than the window recommended by Lobmaier and Bachofner (2018).