Results 41 to 50 of about 76,581 (257)

A review of the impact of micro‐ and nanoplastics on female reproduction: What we know and gaps in knowledge

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Micro‐and nanoplastics (MNPs) are breakdown products of plastics, and humans are exposed to these particles through air, water, food, and soil. There is a growing concern that human exposure to MNPs negatively impacts health. In this review we will discuss the potential health impact of MNPs on ovarian function and the hypothalamic–pituitary ...
Sanchayana Raghuvir, Shawn Alex, Deborah Clegg   +2 more
wiley   +1 more source

Final oocyte maturation with a dual trigger compared to human chorionic gonadotropin trigger in antagonist co-treated cycles: A randomized clinical trial

Middle East Fertility Society Journal, 2018
Objective: This clinical trial compared the effect of a dual trigger treatment (combination of gonadotropin-releasing hormone (GnRH) agonist and human chorionic gonadotropin (hCG) and hCG alone on oocyte quality and metaphase II oocytes’ number. Methods:
Ashraf Alleyassin, Marzieh Ghasemi, Marzieh Aghahosseini, Leila Safdarian, Fatemeh Sarvi, Amir Almasi-Hashiani, Sedigheh Hosseinimousa, Aida Najafian, Arezoo Esmailzadeh   +8 more
doaj   +1 more source

Regulation of Gonadotropin-Releasing Hormone-(1–5) Signaling Genes by Estradiol Is Age Dependent

Frontiers in Endocrinology, 2017
Gonadotropin-releasing hormone (GnRH) is a key regulatory molecule of the hypothalamus–pituitary (PIT)–gonadal (HPG) axis that ultimately leads to the downstream release of estradiol (E2) and progesterone (P).
Bradly M. Bauman, Weiling Yin, Andrea C. Gore, T. John Wu   +3 more
doaj   +1 more source

Successful outcome of a pregnancy derived from premature ovulation in a gonadotropin‐releasing hormone antagonist protocol: A case report

Clinical Case Reports, 2021
In the gonadotropin‐releasing hormone (GnRH) antagonist protocol, it is necessary to reinforce contraceptive guidance assuming that luteinizing hormone surge is not detected by measurement of serum level and ovulation is not suppressed by GnRH antagonist.
Daichi Inoue, Yoshimasa Asada, Tomoko Ando   +2 more
doaj   +1 more source

The Role of Gonadotropin-Releasing Hormone (GnRH) in Endometrial Cancer

Cells, 2021
Endometrial cancer (EC) is one of the most common gynecological malignancies. Gonadotropin releasing hormone (GnRH) is a decapeptide first described to be secreted by the hypothalamus to regulate pituitary gonadotropin secretion.
Günter Emons, Carsten Gründker
doaj   +1 more source

Changes in symptoms and fibroid characteristics in women treated with ultrasound‐guided high intensity focused ultrasound (USgHIFU) at Chris Hani Baragwanath Academic Hospital

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective The main objective was to describe women with fibroids who were treated with ultrasound‐guided high intensity focused ultrasound (USgHIFU) at the Chris Hani Baragwanath Academic Hospital (CHBAH) and to evaluate the outcomes at least 6 months after treatment.
Raphaela Setzen, Raymond Setzen, Claire O'Donoghue, Nico Van Dyk, Ayanda Sengane, Nomvuyo Manyatsi, Shalya Sarubdeo, Yasmin Adam   +7 more
wiley   +1 more source

Intrinsic and Regulated Gonadotropin-Releasing Hormone Receptor Gene Transcription in Mammalian Pituitary Gonadotrophs

Frontiers in Endocrinology, 2017
The hypothalamic decapeptide gonadotropin-releasing hormone (GnRH), acting via its receptors (GnRHRs) expressed in pituitary gonadotrophs, represents a critical molecule in control of reproductive functions in all vertebrate species.
Marija M. Janjic, Stanko S. Stojilkovic, Ivana Bjelobaba   +2 more
doaj   +1 more source

Organoids and organ‐on‐a‐chip models for investigating the pathophysiology of the human reproductive system

Interdisciplinary Medicine, EarlyView.
Organoids and organ‐on‐a‐chips are advancing reproductive system research. In the female reproductive system, applications include cancer organoid models, placental chips, and hormone simulation models. For the male reproductive system, research focuses on drug resistance mechanisms, co‐culture platforms, and infertility studies. These refined in vitro
Hongqi Zhang, Shiwen Deng, Fangfang Jin, Jiayao Qu, Xiang Fan, Peng Chen, Xinrong Fan   +6 more
wiley   +1 more source

Applicability of a novel mathematical model for the prediction of adult height and age at menarche in girls with idiopathic central precocious puberty

Clinics, 2018
OBJECTIVES: Unfavorable predicted adult height and psychosocial inadequacy represent parameters used to guide therapeutic intervention in girls with central precocious puberty. Gonadotropin-releasing hormone analog is the first-line treatment. The aim of
Mateus Cavarzan Lopes, Carolina Oliveira Ramos, Ana Claudia Latronico, Berenice B. Mendonça, Vinicius N. Brito   +4 more
doaj   +1 more source

A Novel Semi‐Quantified Method for Grading Sonographic Severity of Adenomyosis and its Relation With Clinical Symptoms

Journal of Ultrasound in Medicine, EarlyView.
Objective To correlate the sonographic severity of adenomyosis, assessed with real‐time ultrasound and a novel semi‐quantified method (XI‐VOCAL counting and categories) with adenomyosis‐associated symptoms. Methods This observational study was conducted in a tertiary referral outpatient clinic.
Lisa M. Trommelen, Cilla Verbeek, Thierry van den Bosch, Karin P. M. van Galen, Judith A. F. Huirne, Robert A. de Leeuw   +5 more
wiley   +1 more source