Deficiency of which element can lead to syndrome of growth failure, anemia and hypogonadism?
**Core Concept**
Chronic deficiency of a particular element can lead to a complex syndrome characterized by growth failure, anemia, and hypogonadism. This element plays a crucial role in the synthesis of red blood cells, growth hormone, and sex hormones. The condition is associated with impaired DNA synthesis and cellular proliferation.
**Why the Correct Answer is Right**
The correct element is zinc, an essential trace element that acts as a cofactor for over 300 enzymes involved in various cellular processes. Zinc deficiency impairs the activity of enzymes involved in protein synthesis, DNA replication, and gene expression, leading to growth failure and anemia. Additionally, zinc is required for the synthesis of sex hormones, such as testosterone, which is necessary for normal reproductive function and development. The deficiency of zinc can lead to hypogonadism, characterized by low levels of sex hormones, resulting in delayed puberty, infertility, and other reproductive problems.
**Why Each Wrong Option is Incorrect**
* **Option A:** Iron deficiency can lead to anemia but does not cause growth failure or hypogonadism.
* **Option B:** Copper deficiency can cause anemia and neurological problems but is not directly associated with growth failure or hypogonadism.
* **Option C:** Manganese deficiency can cause neurological problems and reproductive issues but is not a primary cause of growth failure or anemia.
**Clinical Pearl / High-Yield Fact**
Zinc deficiency can be caused by a diet low in zinc-rich foods, excessive use of antacids containing aluminum hydroxide, or increased urinary excretion due to diabetes mellitus or other conditions. Patients with zinc deficiency may also exhibit impaired wound healing, taste disturbances, and hair loss.
**Correct Answer: C. Zinc.