Krina T Zondervan

Single cell transcriptomics has transformed our knowledge of reproductive tissues, yet studies remain largely organ-specific and temporally limited, leaving an incomplete picture of how cell types are distributed across the reproductive sys…

STUDY QUESTION: How is endometrial and systemic immunity modulated throughout the menstrual cycle and are there changes in women with endometriosis? SUMMARY ANSWER: Endometriosis is associated with reduced endometrial early natural killer …

Endometriosis (EM) is a chronic inflammatory disease that affects ∼10% of women during reproductive age. It is characterised by ectopic (ECT) growth of endometrial-like tissue mainly in the pelvic cavity. Small extracellular vesicles (sEVs)…

ABSTRACT: Dysmenorrhea is the most common gynaecological condition in women of reproductive age. Approximately 90% of cases are primary dysmenorrhea (PDM) which is not associated with underlying pathology. Dysmenorrhea can have a substantia…

Abstract Dysmenorrhea is the most common gynaecological condition in women of reproductive age. Approximately 90% of cases are primary dysmenorrhea (PDM) which is not associated with underlying pathology. Dysmenorrhea can have a substantial…

ABSTRACT: We explore bladder sensitivity profiles in females with chronic pelvic pain, using a non-invasive bladder sensitivity paradigm. We aim to determine how profiles differ between groups defined by symptoms; groups defined by diagnose…

BACKGROUND: Uterine fibroids (UFs), benign tumours prevalent in up to 80% of women of reproductive age, are associated with significant morbidity, including abnormal uterine bleeding, pain and infertility. Despite identification of key geno…

Metabolism supplies energy, building blocks, and signaling molecules vital for cell function and communication, but methods to directly measure it at single-cell and/or spatial resolutions remain technically challenging and inaccessible for…

Endometriosis is a chronic inflammatory condition requiring surgical or imaging visualization for definitive diagnosis. How endometriotic lesion characteristics relate to circulating inflammatory markers remains unclear. We evaluated 11 inf…

OBJECTIVE: To build consensus on most important symptoms and related consequences for use in questionnaires to characterise individuals with suspected and confirmed endometriosis in the general population. DESIGN: A questionnaire of 107 sy…

IMPORTANCE: Endometriosis is a chronic, estrogen-dependent, inflammatory disease defined by endometrial-like tissue (lesions) outside the uterine lining. It affects up to 10% of women worldwide, and 9 million women in the US, during reprodu…

Background & objectives Endometriosis, a chronic inflammatory condition, affects approximately 10 per cent of reproductive-age women in India. This study aimed to explore the experiences of women with endometriosis and their partners. Metho…

STUDY QUESTION: How does pre-diagnosis use of hospital care differentiate between women later diagnosed with endometriosis and age-matched controls without a diagnosis? SUMMARY ANSWER: Women with hospital-diagnosed endometriosis had more f…

BACKGROUND: Conditioned pain modulation (CPM) is considered a human proxy for descending inhibitory pain pathways. However, there is wide variation in the CPM response described in the literature and ongoing debate about its utility. METHO…

BACKGROUND: Dysmenorrhoea affects many adolescents and often goes untreated for various sociocultural reasons. Dysmenorrhoea frequently co-occurs with other chronic pain conditions, and adult women with dysmenorrhoea have greater sensory se…

Endometriosis is a chronic inflammatory condition characterised by the presence of endometrium-like tissue outside the uterus. Despite its high prevalence and recent advances in molecular science, many aspects of endometriosis and its patho…

STUDY QUESTION: Is there an increased risk of immunological diseases among endometriosis patients, and does a shared genetic basis contribute to this risk? SUMMARY ANSWER: Endometriosis patients show a significantly increased risk of autoi…

OBJECTIVES: To translate and cross-culturally adapt the standard version of the WERF EPHect EPQ into Brazilian Portuguese and migrate it to an electronic version using REDCap. METHODS: The study included 120 women aged 18-50 years, with ha…

The complex and dynamic cellular composition of the human endometrium remains poorly understood. Previous endometrial single-cell atlases profiled few donors and lacked consensus in defining cell types. We introduce the Human Endometrial Ce…

Endometriosis is an inflammatory condition affecting approximately 10% of the female-born population. Despite its prevalence, the lack of noninvasive biomarkers has contributed to an established global diagnostic delay. The intricate pathop…

Immunological dysregulation plays a fundamental role in the inflammatory aspects of endometriosis. Circulating blood leukocytes, one of the most abundant immune cell populations in the human body, have been shown diagnostic significance in …

BACKGROUND: Endometriosis affects 10% of reproductive-age women, and yet, it goes undiagnosed for 3.6 years on average after symptoms onset. Despite large GWAS meta-analyses (N > 750,000), only a few dozen causal loci have been identified. …