Results 91 to 100 of about 115,721 (241)

Supposed pituitary-production of human chorionic Gonadotropin induced by androgen deprivation therapy

International Brazilian Journal of Urology
Introduction: The main cause of slightly elevated human chorionic gonadotropin (HCG) after successful treatment of male germ cell tumors is considered to be pituitary-derived HCG.
Koji Yoshimura, Yoshiharu Nakashima, Kyohei Sugiyama, Naoki Kohei, Akitoshi Takizawa   +4 more
doaj   +1 more source

Assessing a Model for a Complex Systemic Disorder—The Value of Male Mice With a Supernumerary X Chromosome for Klinefelter Syndrome Research

Andrology, EarlyView.
ABSTRACT Introduction Direct experimental investigation of Klinefelter syndrome (KS) in patients is limited because the syndrome manifests heterogeneously and affects multiple organ systems. Studying KS therefore requires a model that captures this complexity as accurately as possible while still permitting controlled experimental manipulation ...
Fariba Saadati, Joachim Wistuba
wiley   +1 more source

Managing infertility with the follitropin alfa prefilled pen injector – patient considerations

Therapeutics and Clinical Risk Management, 2015
Klaus Bühler Centre for Gynaecological Endocrinology and Reproductive Medicine, Stuttgart, Germany Abstract: Gonadotropin treatment has been used in fertility treatment since the 1930s.
Bühler K
doaj  

Association Between FTO rs1558902 Polymorphism, Age‐Related Hypogonadism, and Central Obesity in Japanese Men

Andrology, EarlyView.
ABSTRACT Background Obesity and low testosterone levels are closely interconnected, with the FTO gene being the most robust genetic determinant of body mass index (BMI). However, whether this primary genetic driver of obesity directly influences the hypothalamic‐pituitary‐testicular (HPT) axis remains unclear.
Takahiro Tsutsumi, Hideyuki Okuma, Fuminori Kazama, Masumi Endo, Yuna Takato, Hitomi Nara, Asako Miyazaki, Nozomi Harai, Kyoichiro Tsuchiya   +8 more
wiley   +1 more source

Impact of gonadal steroids on pituitary gonadotropins in male European sea bass (Dicentrarchus labrax)

, 2017
Trabajo presentado en el 6th International Workshop on the Biology of Fish Gametes, celebrado en Vodňany (República Checa), del 4 al 7 de septiembre de 2017The follicle stimulating hormone (Fsh) and luteinizing hormone (Lh) are central endocrine ...
Ibáñez, Soledad, Molés, Gregorio, Zapater, Cinta, Pinto, Patrícia I. S., Gómez, Ana   +4 more
core   +1 more source

Intrauterine Growth and Male Reproductive Health: A Follow‐up Study From the Danish National Birth Cohort

Andrology, EarlyView.
ABSTRACT Background Reduced intrauterine growth might affect male reproductive health later in life, however, existing research remain inconclusive. Objectives To investigate the association between placental weight and birthweight Z‐scores and semen characteristics, testes volume, and reproductive hormone levels in young men.
Anne Gaml‐Sørensen, Nis Brix, Andreas Ernst, Sandra Søgaard Tøttenborg, Mette Møller Dornfeldt, Karin Sørig Hougaard, Siri Eldevik Håberg, Mikko Myrskylä, Gunnar Toft, Jens Peter Ellekilde Bonde, Cecilia Høst Ramlau‐Hansen   +10 more
wiley   +1 more source

Origin of ultradian pulsatility in the hypothalamic-pituitary-adrenal axis [PDF]

, 2009
The hypothalamic-pituitary-adrenal (HPA) axis is a neuroendocrine system that regulates the circulating levels of vital glucocorticoid hormones. The activity of the HPA axis is characterized not only by a classic circadian rhythm but also by an ultradian
Terry, JR, Lightman, S.L., Walker, J.J., Walker, JJ, Terry, J.R.; id_orcid, Lightman, SL   +5 more
core   +1 more source

Endocrine management of male subfertility

Indian Journal of Endocrinology and Metabolism, 2013
Infertility in a couple is defined as failure to conceive after 12 months of regular unprotected intercourses. Male infertility due to impaired spermatogenesis may result from hypothalamic, pituitary or testicular disorders.
Belinda George, Ganapathi Bantwal
doaj   +1 more source

Machine Learning‐Based Prediction of Sperm Retrieval Outcomes in Patients With Klinefelter Syndrome: A Multicenter Study With External Validation

Andrology, EarlyView.
ABSTRACT Background The Klinefelter syndrome is a common genetic cause of male infertility, and testicular sperm extraction (TESE) enables sperm retrieval in a subset of affected patients. However, predicting TESE success remains challenging due to the heterogeneous clinical and endocrinological presentation of the Klinefelter syndrome.
Murat Gül, Ali Şahin, Cevahir Özer, Mesut Altan, Tansu Güdelci, Kadir Can Sahin, Mehmet Hamza Gültekin, Muhammed Arif İbis, Mesut Berkan Duran, Burak Sivaslıoğlu, Eray Hasırcı, Mert Kılıç, Ali Can Albaz, Gökhan Çeker, Gianmaria Salvio   +14 more
wiley   +1 more source

The Bidirectional Association Between MASLD and Male Hypogonadism: An Updated Meta‐Analysis

Andrology, EarlyView.
ABSTRACT Background Metabolic dysfunction‐associated steatotic liver disease (MASLD) and male hypogonadism are increasingly prevalent, metabolically interrelated conditions. Testosterone (T) deficiency has been implicated in hepatic lipid dysregulation, insulin resistance, and visceral adiposity, whereas MASLD may impair the hypothalamic–pituitary ...
Giorgia Spaggiari, Leonardo Dalla Valentina, Cristina Felicani, Filippo Gabrielli, Simonetta Lugari, Giovanni Corona, Paolo Ventura, Manuela Simoni, Fabio Nascimbeni, Daniele Santi   +9 more
wiley   +1 more source