Zinc

What Is Alopecia Areata? Alopecia areata is an autoimmune attack on hair follicles characterized by sudden hair loss involving scalp or beard, although any hairy area may be affected. Areas of hair loss have a patchy pattern with sharply defined ...

What Are Abnormal Blood Values In Childhood? Abnormal blood studies in childhood are lab results showing blood abnormalities for blood cells and blood components. What Are Abnormal Blood Values In Childhood in Celiac Disease?

What Is Loss of Smell? Loss of smell is a disorder that is characterized by impaired olfactory sense, or olfaction. Partial or complete loss of smell can result from malnutrition, chronic rhinitis, polyps, chronic sinusitis, medications, old age, head trauma, ...

What Is Short Stature? Short stature means the individual has not reached a normal height as a result of failure to thrive and severe growth delay in children.1 What Is Short Stature In Celiac Disease and/or Gluten Sensitivity? Catassi C, ...

What Is Turner Syndrome? Turner syndrome is a sex chromosome abnormality in females characterized by failure of the ovaries to respond to pituitary hormone stimulation as a consequence of having complete or partial absence of the two sex (X) chromosomes. ...

What Is Delayed Puberty in Boys? Delayed puberty in boys is characterized by lack of growth and functional activity of the male gonads, called testes or testicals, to produce testosterone by age 14 and failure to grow pubic hair by age 15. ...

What Is Delayed Puberty In Girls? Delayed puberty in girls is a concerning condition characterized by decreased functional activity of the ovaries resulting in late onset of ovulation and secondary sex characteristics. Q: When should puberty in girls begin? A: ...

What Is Failure To Thrive And Growth Retardation? Failure to thrive (FTT) and growth retardation are conditions affecting children characterized by weight consistently below the 3rd percentile for age or a decrease in the expected rate of growth based on ...

What Are Congenital Anomalies? Congenital anomalies are malformations present in the infant at birth. Q: What anomalies are present at birth? A: Some anomalies are inherited while others are caused by a harmful environmental factor during pregnancy such as diet, ...

What Is Down Syndrome? Down Syndrome is a congenital disorder (present at birth) characterized by consequence of having an extra chromosome 21 or 22.  Down syndrome is typically caused by what is called nondisjunction. Q: What is nondisjunction? A: Nondisjunction ...

What Is Infertility in Males? Infertility in males is characterized by inability to either produce sperm or to produce viable sperm or mobile sperm resulting in prohibiting fertilization of the female ovum (egg). To the left is a false-colour scanning ...

What Is Unexplained Adult Male Hypogonadism? Hypogonadism in males is a distressing reproductive disorder characterized by inadequate production of male andogen hormones and/or spermatozoa by the testes. Q: How do andogens affect reproductive health? A: Male androgen hormones control the ...

What Is Dysgeusia? Dysgeusia is impaired or altered sense of taste characterized by the inability to distinguish the flavor of a substance. Q: What causes loss of the ability to taste? A: Some causes of impaired taste include these health conditions: malnutrition, hypothyroidism, ...

What Is Acquired Ichthyosis? Acquired ichthyosis is an uncommon, nonhereditary cutaneous disorder characterized by dry, rough skin with prominent symmetrical scaling that involves significant portions of the body. Most microscopic studies of acquired ichthyosis exhibit hyperkeratosis (thickened skin) with a ...

What Is Fine Hair With Rough Texture? Fine hair (lower diameter across the width) with rough texture is an abnormal hair shaft feature altered from the normal diameter and smooth quality of hair. Q: What is the normal diameter and smooth quality of ...