Dr. Jaime Alberto Rivera M.D.

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• What Are Ketones?

  Almost every cell in the body has a primary source of energy, which is usually glucose. However, when the body doesn't have enough glucose, the liver responds by producing chemicals known as ketones, converting stored fatty acids into ketone bodies. Ketones are used as a backup fuel source when...

• Is Malaria Preventable?

  Malaria is a serious, but preventable disease more commonly found in some tropical and subtropical countries. It is a disease caused by the infection of the parasite Plasmodium, which lives in mosquitoes. Malaria is spread by the bite of an infected mosquito. Many people who travel to places...

• What Is Leukopenia: Symptoms and Causes

  What is leukopenia?Leukopenia is a condition in which abnormally low white blood cells are circulating in the blood. This condition can be diagnosed using a blood test called complete blood count (CBC). A normal white blood cell count is usually between 3,500-11,000 WBCs per microliter. People...

• Sperm Cells Mimic Embryonic Stem Cells

  Sperm cells in the testicles are able to mimic the embryonic stem cells and can develop into any of the adult cells in the body. These germ cells, also called spermatogonial cells, belong to the adult stem cells and are the precursor of sperm cells.Based on a new study published in the online...

• How Is Shingles Treated?

  Shingles, or herpes zoster, refers to the painful skin rashes caused by the varicella zoster virus. In this condition, a band of rashes usually appears in a small area on the face or body. This infection is very common in people who have a weak immune system due to various reasons. Older adults are...

• Causes, Treatment, and Prevention of Petechiae

  Petechiae are tiny dots that appear as red, brown, or purple in color beneath the skin. They are usually seen in clusters on the stomach, buttocks, arms, and legs. However, they may also appear inside the mouth or on the eyelids. Petechiae may indicate different conditions, which can range from...