Which of the following is a characteristic finding in progeria?
High levels of hyaluronic acid
Low levels of glutamate
High levels of thyroxine
Low levels of calcitonin
The Correct Answer is A
A. Progeria, also known as Hutchinson-Gilford Progeria Syndrome (HGPS), is characterized by accelerated aging. One of the biochemical changes observed in this condition is an increase in hyaluronic acid levels, which is associated with skin changes and the premature aging process seen in affected individuals.
B. Low levels of glutamate are not characteristic of progeria. Glutamate is a neurotransmitter, and its levels are not typically altered in progeria.
C. High levels of thyroxine are not associated with progeria. Thyroxine levels are related to thyroid function, and there is no direct link between high thyroxine levels and progeria.
D. Low levels of calcitonin are not characteristic of progeria. Calcitonin is a hormone involved in calcium regulation, and its levels are not notably altered in progeria.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While inflammation plays a role in restoring functional cells, it is not the ultimate goal. The primary purpose of inflammation is to prepare the site for healing, which includes clearing out damaged cells and pathogens.
B. Inflammation is a vital process that helps prepare the site for healing by facilitating the removal of dead tissue and pathogens, allowing for tissue repair. It also promotes the formation of new tissue.
C. Platelet aggregation and clotting are part of the inflammatory process, but the ultimate goal of inflammation is not to increase platelets but to prepare the site for repair and healing.
D. Inflammatory mediators typically cause vasodilation to increase blood flow to the affected area, not vasoconstriction. This helps deliver nutrients, oxygen, and immune cells to the site of injury.
Correct Answer is D
Explanation
A. Dark-colored urine is typically a sign of dehydration, as the kidneys concentrate the urine when the body is low on water. Adequate hydration usually results in lighter-colored urine.
B. Strong-smelling urine can indicate dehydration, certain foods, or medications, but it is not an indicator of adequate hydration. Properly hydrated urine typically has a mild odor.
C. Oliguria, or low urine output, can be a sign of dehydration, kidney dysfunction, or other underlying issues. It is not a sign of adequate hydration.
D. Pale-colored urine is a characteristic of adequate hydration. When the body is well-hydrated, the kidneys excrete a greater volume of diluted urine, which tends to be light in color.
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