Phosphate diabetes

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Obesity, Sleep & Internal medicine
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Phosphate diabetes
Synonyms	X-linked hypophosphatemia, Vitamin D-resistant rickets
Pronounce	N/A
Specialty	Endocrinology
Symptoms	Bone pain, muscle weakness, dental problems, rickets
Complications	N/A
Onset	Childhood
Duration	Lifelong
Types	N/A
Causes	Genetic mutation in the PHEX gene
Risks	Family history of the condition
Diagnosis	Blood test, urine test, genetic testing
Differential diagnosis	Hypophosphatasia, Fanconi syndrome
Prevention	N/A
Treatment	Phosphate supplements, active vitamin D analogs
Medication	Calcitriol, phosphate supplements
Prognosis	N/A
Frequency	1 in 20,000
Deaths	N/A

Phosphate Diabetes is a rare medical condition characterized by the inability of the kidneys to properly reabsorb phosphate, leading to hypophosphatemia (low levels of phosphate in the blood). This condition is also known as phosphaturic diabetes or renal phosphate wasting. Phosphate, a mineral, plays a crucial role in bone formation, energy storage and release, and the formation of cell membranes. Therefore, phosphate diabetes can have significant implications for bone health and energy metabolism.

Causes

Phosphate diabetes is often caused by certain genetic mutations or conditions that affect the kidneys' ability to reabsorb phosphate. These can include hereditary disorders such as X-linked Hypophosphatemia (XLH) and autosomal dominant hypophosphatemic rickets (ADHR). Tumor-induced osteomalacia, a rare condition in which tumors produce substances that interfere with phosphate reabsorption, can also lead to phosphate diabetes.

Symptoms

The primary symptom of phosphate diabetes is Hypophosphatemia, which can lead to a range of complications due to the essential role of phosphate in the body. Symptoms and complications may include:

• Weakness and fatigue
• Bone pain and fractures
• Rickets in children and osteomalacia in adults
• Muscle weakness
• Dental problems

Diagnosis

Diagnosis of phosphate diabetes involves a combination of blood tests to measure phosphate levels, along with tests to assess kidney function and the presence of genetic mutations. Imaging studies may also be conducted to identify bone abnormalities or tumors.

Treatment

Treatment for phosphate diabetes focuses on correcting the hypophosphatemia and addressing its underlying causes. This may involve:

• Phosphate supplements
• Vitamin D supplements
• Treatment of underlying conditions or removal of tumors causing the condition

Prognosis

The prognosis for individuals with phosphate diabetes varies depending on the underlying cause and the severity of the condition. With appropriate treatment, symptoms can often be managed effectively, improving quality of life.

Gallery

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  Craniosynostosis
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  X-ray of rickets in legs
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  Kyphoscoliosis in hereditary sensory autonomic neuropathy type III
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  Protein FGF23 structure

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