Author: Shadab Chow
Nonalcoholic Fatty Liver Disease
Nonalcoholic Fatty Liver Disease: Definition and Description of Nonalcoholic Fatty Liver Disease: Nonalcoholic Fatty Liver Disease (NAFLD) refers to a range of conditions that affect the liver and are characterized by the accumulation of fat in liver cells. This condition is not linked to alcohol consumption and can vary in severity from simple fatty liver…
Nocturnal Enuresis
Nocturnal Enuresis: Definition and Description of Nocturnal Enuresis: Nocturnal enuresis, commonly referred to as bedwetting, is the involuntary discharge of urine during sleep. This condition typically occurs in children but can also affect older individuals. Medically, it is classified as a type of enuresis that specifically occurs at night. While it is a common developmental…
Nocardiosis
Nocardiosis: Definition and Description of Nocardiosis: Nocardiosis is a rare infectious disease caused by bacteria belonging to the genus Nocardia. These are gram-positive, aerobic actinomycetes found in soil, decaying organic matter, and water. The disease primarily affects the lungs but can also impact the brain, skin, and other organs. Nocardiosis can manifest as a pulmonary…
Nitroglycerin for Chest Pain
Nitroglycerin for Chest Pain: Definition and Description of Nitroglycerin for Chest Pain: Nitroglycerin is a medication commonly used to treat chest pain (angina) associated with heart disease. It works by relaxing blood vessels, improving blood flow to the heart, and lowering the heart’s oxygen demand. The drug is classified as a nitrate, which is effective…
Night Eating
Night Eating: Definition and Description of Night Eating: Night Eating Syndrome (NES) is a condition characterized by recurrent episodes of night eating, which involves consuming excessive quantities of food during the night after awakening from sleep. Individuals with this condition may eat with little or no memory of it, and often report feelings of anxiety…
Night Blindness
Night Blindness: Definition and Description of Night Blindness: Night blindness, also known as nyctalopia, is a vision impairment that affects an individual’s ability to see in low-light conditions or darkness. It is not a standalone condition but often indicates an underlying problem with the retina, optic nerve, or the overall visual system. The inability to…
Nicotine Withdrawal
Nicotine Withdrawal: Definition and Description of Nicotine Withdrawal: Nicotine withdrawal refers to a collection of symptoms that occur when a person who is dependent on nicotine stops using it. Nicotine, an addictive substance found in tobacco products, alters the brain’s chemistry, leading to physical and psychological dependence. When nicotine use is abruptly discontinued, the body…
Neurofibromatosis
Neurofibromatosis: Definition and Description of Neurofibromatosis: Neurofibromatosis (NF) is a genetic disorder that causes tumors to form on nerve tissue. It is characterized by the development of multiple benign tumors known as neurofibromas, which can occur anywhere in the body, including the skin, nerves, and other organs. NF is classified into three main types: Neurofibromatosis…
Nephropathy Diabetic
Nephropathy Diabetic: Definition and Description of Nephropathy Diabetic: Nephropathy Diabetic, or Diabetic Nephropathy, is a severe kidney-related complication that often develops in individuals diagnosed with diabetes, primarily type 1 and type 2. It is characterized by damage to the kidney’s filtering system, which leads to impaired kidney function. Over time, high blood glucose levels can…
Nephrogenic Diabetes Insipidus
Nephrogenic Diabetes Insipidus: Definition and Description of Nephrogenic Diabetes Insipidus: Nephrogenic Diabetes Insipidus (NDI) is a rare condition characterized by the kidneys’ inability to concentrate urine due to a lack of response to the hormone vasopressin (also known as antidiuretic hormone, ADH). This hormonal deficiency results in excessive urination (polyuria) and extreme thirst (polydipsia), leading…