Aniridia-intellectual disability syndrome is an extremely rare autosomal dominant developmental defect of the eye described in several members of one family that is characterized by the association of moderate intellectual disability with aniridia, lens dislocation, optic nerve hypoplasia (see this term) and cataracts. Can aniridia be cured? Unfortunately, there isRead More →
Dogs, humans, and other animals who come into contact with the stinging nettle will experience unpleasant symptoms that can intensify with repeated exposure. … If your dog comes into contact with the stinging nettle and is displaying signs of pain and toxicity, a veterinary visit is warranted without delay. WhatRead More →
Full anesthetic doses of phenobarbital decrease the force and frequency of uterine contractions. Administration of sedative-hypnotic phenobarbital to the mother during labor may result in respiratory depression in the newborn. Premature infants are particularly susceptible to the depressant effects of phenobarbital. What is the mechanism of action of barbiturates? BarbituratesRead More →
An image does have the capacity to unite people, and to ignite change. Photography can be a tool for social good, and, slowly, it can change the world. Portrait of Humanity serves as a timely reminder, that despite our many differences, we are able to unite as a global communityRead More →
If the fuel is burned with a limited supply of oxygen, incomplete combustion can occur and the following pollutants can be formed: soot – unburned carbon which leaves as dirty particles. What do unburnt hydrocarbons do? Unburnt hydrocarbons (UHCs) are the hydrocarbons emitted after petroleum is burned in an engine.Read More →
While excessive stress isn’t good for your overall health, there’s no evidence that stress results in miscarriage. About 10 to 20 percent of known pregnancies end in miscarriage. What can cause miscarriage in early pregnancy? What causes miscarriage? Infection. Exposure to environmental and workplace hazards such as high levels ofRead More →
Mechanical timing advance This type of timing advance is also referred to as centrifugal timing advance. The amount of mechanical advance is dependent solely on the speed at which the distributor is rotating. In a 2-stroke engine, this is the same as engine RPM. In a 4-stroke engine, this isRead More →
Measles in adults Although it’s often associated with childhood illness, adults can get measles too. People who aren’t vaccinated are at a higher risk of catching the disease. It’s generally accepted that adults born during or before 1957 are naturally immune to measles. What species does measles affect? The virusRead More →
Retinitis pigmentosa occurs in about 1 of every 4,000 people in the United States. When the trait is dominant, it is more likely to show up when people are in their 40s. When the trait is recessive, it tends to first appear when people are in their 20s. Who isRead More →
Caffeine’s effect on the brain causes increased neuron firing. The pituitary gland senses this activity and thinks some sort of emergency must be occurring, so it releases hormones that tell the adrenal glands to produce adrenaline (epinephrine). Does caffeine affect GABA? Caffeine inhibits GABA release. The less GABA, the moreRead More →