Related Experiment Video
Updated: Aug 7, 2026
06:38
Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
Published on: October 13, 2018
[Precocious puberty and von Recklinghausen's disease]
Ewa Barg1, Beata Wikiera, Aleksander Basiak
1Z Katedry i Kliniki Endokrynologii Wieku Rozwojowego Akademii Medycznej we Wrocławiu. ebarg@dilnet.wroc.pl
Wiadomosci Lekarskie (Warsaw, Poland : 1960)
|July 4, 2006
Summary
Von Recklinghausen
Area of Science:
- Neuroendocrinology
- Pediatric Endocrinology
- Genetics and Rare Diseases
Background:
- Von Recklinghausen's disease, a neurocutaneous syndrome, involves skin, nerve, and bone abnormalities.
- Precocious puberty is defined as the early onset of puberty, often requiring medical intervention.
Observation:
- A 7-year-old boy with Von Recklinghausen's disease presented with café au lait spots and an inoperable intracranial tumor.
- He exhibited signs of precocious puberty, including pubic hair development and testicular enlargement.
- Brain MRI revealed a suprasellar tumor compressing the pituitary stalk.
Findings:
- Laboratory tests and LHRH stimulation confirmed true precocious puberty.
- Treatment with Diphereline led to decreased testicular volume and pubic hair regression.
- The tumor showed no progression during treatment.
Implications:
- This case highlights the critical need for monitoring children with Von Recklinghausen's disease for precocious puberty.
- Early diagnosis and treatment of precocious puberty in these patients are essential for optimal outcomes.
- Close observation facilitates timely intervention, preventing long-term complications.
More Related Videos
05:52Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
08:22A Robust Polymerase Chain Reaction-based Assay for Quantifying Cytosine-guanine-guanine Trinucleotide Repeats in Fragile X Mental Retardation-1 Gene
Published on: September 16, 2019
Related Concept Videos
02:30Genomic Imprinting and Inheritance
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
01:21Huntington Disease l: Introduction
Huntington disease or HD is a progressive, fatal neurodegenerative disorder inherited in an autosomal dominant pattern.PathophysiologyIt is caused by expansion of the CAG trinucleotide repeat in the HTT gene on chromosome 4 (4p16.3), producing an abnormal huntingtin protein with an expanded polyglutamine tract. This misfolded protein disrupts cellular function, leading to neuronal death. Normal alleles have ≤26 repeats, 27–35 are intermediate (risk of expansion), 36–39 show reduced penetrance,...
01:21Smooth Endoplasmic Reticulum
Smooth endoplasmic reticulum or smooth ER is a sub-organelle with specialized functions in animal cells and plant cells. It is often associated with the tubule morphology of the endoplasmic reticulum.
The ER provides optimal conditions for synthesizing steroid hormones and lipids, such as phospholipids and triglycerides. Traditionally, lipid metabolism was considered to be a smooth ER function. However, there is no direct evidence to prove that rough ER is completely excluded from lipid...
The ER provides optimal conditions for synthesizing steroid hormones and lipids, such as phospholipids and triglycerides. Traditionally, lipid metabolism was considered to be a smooth ER function. However, there is no direct evidence to prove that rough ER is completely excluded from lipid...
01:43Sex-linked Disorders
Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
03:09Meiosis I
Meiosis is the division of a diploid cell into haploid cells forming sperm and eggs in animals through differentiation. Meiosis I is the first stage of meiosis, where the genetic recombination of homologous chromosomes and the reduction of the ploidy level by half occurs.
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
02:23Abnormal Proliferation
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...