Reproduction & fertility

01 15 October 2026

DOI 10.1530/raf-26-0049

Association between the total dosage of gonadotropin-releasing hormone antagonist during controlled ovarian stimulation and pregnancy outcomes

Open DOI

Fen Tian, Bin Xu, Yanping Li et al.

At present, gonadotropin-releasing hormone antagonist (GnRH-ant) protocol is being increasingly used in controlled ovarian stimulation (COS). However, some studies have shown that the GnRH-ant protocol impairs the pregnancy outcomes of f...

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02 15 October 2026

DOI 10.1530/raf-26-0095

Multi-site characterization of reproductive tract and gut microbiota in unexplained recurrent pregnancy loss: a case control study

Open DOI

Oshri Barel, Becky Arbiv, Maria Maslenko et al.

This cross-sectional case-control study aimed to characterize microbial communities across multiple anatomical sites in women with unexplained recurrent pregnancy loss compared with healthy controls. Forty women aged 18–40 years, includi...

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03 14 October 2026

DOI 10.1530/raf-26-0089

Paternal metabolic dysfunction and pregnancy loss following assisted reproduction: A cross-sectional study

Open DOI

Andrew Peel, Rashmi Baid, Andrew D. Vincent et al.

There is substantial heterogeneity in the relationship between paternal obesity and pregnancy outcomes following assisted reproduction, possibly related to the presence of obesity-related metabolic complications (e.g. insulin resistance,...

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04 5 October 2026

DOI 10.1530/raf-26-0102

One-year reproductive effects of anti-GnRH and rabies vaccination in female pet cats

Open DOI

Shiri Novak, Boris Yakobson, Roni King et al.

Overpopulation of domestic cats poses risks to public health, biodiversity, and animal welfare. Surgical sterilization is broadly used, but has substantial limitations. Gonacon, an anti-GnRH vaccine, provides a non-surgical alternative; ...

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05 30 September 2026

DOI 10.1530/raf-26-0110

Semen quality in men with cancer: comparison with a healthy Swiss reference population

Open DOI

Myriam Vogt, Rita Rahban, Benedetta Campana et al.

This study aimed to investigate the impact of cancer and its treatment on semen quality and to examine the differences according to cancer type and stage. This monocentric retrospective cohort study included men aged 12–50 years who unde...

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06 29 September 2026

DOI 10.1530/raf-26-0080

Testosterone Therapy for Cognition in Menopause: Systematic review and meta-analysis

Open DOI

Alexandra Faulkner, Roopal Desai, Nicky Keay et al.

To explore the effect of testosterone therapy on objective and subjective cognition in menopause transition and postmenopause, through a systematic review and meta-analysis. A systematic search was conducted in PsycINFO, MEDLINE, Embase,...

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07 29 September 2026

DOI 10.1530/raf-26-0152

Premature ovarian insufficiency and early menopause: understanding the aetiology, protecting long-term health and what to expect from future research

Open DOI

Laura Cervini, Melanie C Davies

Premature ovarian insufficiency (POI) and early menopause, defined as ovarian failure before the age of 40 years and menopause between the ages of 40 and 45 years, respectively, affect a considerably higher proportion of people than prev...

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08 29 September 2026

DOI 10.1530/raf-26-0093

The impact of an overweight body condition on pregnancy, parturition, and physical activity in the bitch

Open DOI

Samantha J McCarter, Julie T. Cecere, Stephen R Werre et al.

The aim of this study was to determine how an overweight body condition affects pregnancy success in the bitch. Fifteen client-owned medium-large breed bitches were enrolled for sixteen pregnancies from breeding to four weeks postpartum,...

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09 25 September 2026

DOI 10.1530/raf-26-0076

Giving a diagnosis of premature ovarian insufficiency: the importance of good communication: insights from a qualitative study

Open DOI

Kate Pleace, Caroline Law, Cathy Herbrand et al.

Objective: The objectives of this paper are to explore the communication of a diagnosis of premature ovarian insufficiency (POI) and to examine how the way this diagnosis is communicated affects women with the condition. Design: This is ...

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10 24 September 2026

DOI 10.1530/raf-25-0215

Recombinant hCG versus Dual Triggering for final oocyte maturation in ICSI Cycles among Poor Responders with Endometriosis

Open DOI

Fatemeh Davari Tanha, Mahbod Ebrahimi, Zahra Kaveh et al.

This double-blind randomized clinical trial compared recombinant human chorionic gonadotropin (rhCG) alone versus dual triggering (gonadotropin-releasing hormone agonist plus rhCG) for final oocyte maturation in women with endometriosis ...

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