List of plants poisonous to equines. Paterson's Curse has been responsible for the deaths of many horses. Many plants are poisonous to equines; the species vary depending on location, climate, and grazing conditions. In many cases, entire genera are poisonous to equines and include many species spread over several continents.
A number of prescription and over-the-counter medications can interfere with or cause loss of memory. Possible culprits include: antidepressants, antihistamines, anti-anxiety medications, muscle relaxants, tranquilizers, sleeping pills, and pain medications given after surgery. Alcohol, tobacco, or drug use.
Single gene disorders are caused by DNA changes in one particular gene, and often have predictable inheritance patterns. 1  Over 10,000 human disorders are caused by a change, known as a mutation, in a single gene. Dominant diseases are single gene disorders that occur in the heterozygous state â when an individual has one mutant copy of the relevant gene and one healthy copy.