Hormonal Function of Undescended Testes Before Orchidopexy in Prepubertal Boys.

The hormonal aspect of undescended testes (UDTs) in prepubertal boys, i.e., after mini-puberty, is poorly understood.

Sperm Migration and Hyaluronic Acid Binding: Implications for Male Fertility Evaluation.

Mature, vital, and motile spermatozoa are essential for reaching the oocyte and binding to hyaluronic acid (HA) in the cumulus oophorus matrix. This study aims to determine the relationship between sperm-migration ability and HA-binding potential, as well as the relationship between sperm concentration and motility. Semen samples were collected from 702 men aged 20-56 years (median 34.

A New Approach to the Assessment of Erectile Dysfunction Based on Vasomotion Monitored by the Flow-Mediated Skin Fluorescence (FMSF) Technique-A Preliminary Study.

Erectile dysfunction (ED) most often has vascular etiology and usually is the earliest symptom of vascular dysfunction. The aim of this study was to evaluate vascular dysfunction with the use of the Flow-Mediated Skin Fluorescence (FMSF) technique in men with and without ED. Included were 39 men (median age 53) with ED and 40 men (median age 41.

Undescended Testes Growth Potential in Relation to Testis Position from Diagnosis until Puberty.

: Testicular volume (TV) and testicular atrophy index (TAI) were used to determine criteria for normal, hypotrophic and atrophic undescended testes (UDT). : This study aimed to determine changes in TV and TAI in patients with different types of UDT. : 182 boys (aged 0.

Daily levels of sex hormones in 15 subfertile women formulate a menstrual cycle profile predominant with progesterone secretion.

Introduction: Changes in sex hormone secretions during the menstrual cycle may affect fertility. It has been shown that a prematurely raised progesterone (P4) level after therapeutic injection of human chorionic gonadotropin caused changes in endometrial gene expression and lowered the pregnancy rate. The aim of the present study was to investigate the complete menstrual patterns of P4 together with its derivatives testosterone (T) and oestradiol (E2) in subfertile women during their natural cycles.