Background. Studies have reported a higher preva-lence of hypogonadism in men with type 2 diabetes mellitus (T2DM) than non-diabetic men. The pattern T2DM using gonado-tropin-releasing hormone (GnRH) stimulation test Sub-Saharan Africa is unknown. Objective. This study was conducted to determine the prevalence and Nigerian T2DM. Methods. A cross-sectional involving 358 179 as controls. Androgen...

Hypogonadism in men is defined as a complex of signs and symptoms due to testosterone deficiency or inappropriate production, which occurs in about 1-2%. Symptoms of hypogonadism depend primarily on the age of the male patients at the time of development of the hypogonadism (pre- or postpubertal). The dominant findings are: impaired puberty, decrease of virilization, infertility or decrease of ...

Impaired testicular function, i.e., hypogonadism, can result from a primary testicular disorder (hypergonadotropic) or occur secondary to hypothalamic-pituitary dysfunction (hypogonadotropic). Hypogonadotropic hypogonadism can be congenital or acquired. Congenital hypogonadotropic hypogonadism is divided into anosmic hypogonadotropic hypogonadism (Kallmann syndrome) and congenital normosmic iso...

Perrault syndrome is an autosomal recessive disorder characterized by sensorineural deafness and ovarian dysgenesis. Some patients also have neurologic abnormalities, including cerebellar ataxia, nystagmus, polyneuropathy and mild mental retardation. The syndrome is known to be caused by mutations in HSD17B4 or HARS2 until now but few patients were reported. We report on two sporadic Korean pat...

Puberty is a complex maturation process that begins during fetal life and persists until the acquisition of reproduction function. The fundamental event that activates puberty occurs in the hypothalamus. A complex neuron network stimulates GnRH secretion, which stimulates pituitary gonadotropin secretion and then gonadal steroid secretion. Pubertal delay is defined as the presentation of clinic...

We used mice with targeted deletion of 25-hydroxyvitamin D-1 α-hydroxylase [1α(OH)ase(-/-)] to investigate whether 1,25(OH)2D3 deficiency results in male infertility mediated by 1,25(OH)2D3 or extracellular calcium and phosphorus. Male 1α(OH)ase(-/-) and their wild-type littermates fed either a normal diet or a rescue diet from weaning were mated at 6-14 wk of age with female wild-type mice on ...

Premature ovarian failure (POF) is a genetically and phenotypically heterogeneous disorder that includes individuals with manifestations ranging from primary amenorrhea to loss of menstrual function prior to age 40. POF presents as hypergonadotropic hypogonadism and can be part of a syndrome or occur in isolation. Here, we studied 3 sisters with primary amenorrhea, hypothyroidism, and hypergona...

OBJECTIVE To describe a new FOXL2 gene mutation in a woman with sporadic blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) and hypergonadotropic hypogonadism. DESIGN Case report. SETTING University medical center. PATIENT(S) A 28-year-old woman. INTERVENTION(S) Clinical evaluation, hormone assays, gene mutation research. MAIN OUTCOME MEASURE(S) FOXL2 gene mutation. RESULT(...

Address for correspondence: İsmail Hakkı Kalkan, MD, Attar Sokak 21/14, Gaziosmanpaşa/ Çankaya 06700, ankara, Turkey, Tel.: +90 505 270 40 85, e-mail: [email protected] Received 13-03-12, Revised 15-06-12, Accepted 02-07-12 Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is a rare autosomal recessive multisystem disorder caused by mutations in the gene encoding thymidine phos...