Each of us is the result of genes inherited from our parents, and the influence of our environment on the functioning of the genes and body components encoded in our genes. Sometimes an error occurs during replication of genes as part of the reproductive process. Most of the errors are analogous to typos in printed text - a single wrong character appears in an instruction in a gene. The defective gene results in the production of a faulty component for the body.

we become more familiar with the signs and symptoms of this disease, we often begin seeing that other family members seem to have it, too. Does that means it's hereditary? Some doctors say that there does seem to be a predisposition for that. If that is true, then does that mean there is a gene for this disease being passed down within the family? No one knows yet because no research is being done on it. There are certainly "clusters" of family members with this disease.

Familial Alzheimer’s disease (FAD) or early-onset Alzheimer’s is an inherited, rare form of the disease, affecting less than 10 percent of Alzheimer’s disease patients. FAD develops before age 65, in people as young as 35. It is caused by one of three gene mutations on chromosomes 1, 14 and 21. If even one of these mutated genes is inherited from a parent, the person will almost always develop FAD.

this time RPC is not believed to be hereditary, however there are several families with documented and diagnosed RPC in them. Siblings are the most commonly found grouping, although several twins only one twin developed RPC. The next factor seen is parent and child, then grandparent and child.

The short answer is no. Although about 10 per cent of people with Parkinson's disease will have a relative who is also affected, the vast majority do not. You should not worry about having passed the disease on to your children. Like many other diseases, Parkinson's disease is likely to be the result of a complex interaction between both genetic and environmental factors.

Congenital diseases are not covered-this is defined as any disorder or condition, which was present at birth.

There is an undoubted genetic component to hypothyroidism and babies may be actually born with it. However, most people develop it as a result of injury or autoimmune disease, which may or may not be genetic.

death in the mid-brain. However, it is NOT a hereditary disorder; it is an "acquired" condition.

Diabetes is largely a hereditary disease with the inheritance being stronger in Type 2 diabetes. If both parents are diabetic, then the risk for the offspring is close to 100%. If either one of the parents is diabetic, there is 40% chance of the offspring getting diabetes. If parents and grandparents are diabetic, then the offspring are likely to develop diabetes at a early age - as early as - 20-25 years of age.

There appears to be a predisposition based on heredity for some people when they are exposed to loud sounds, but whether or not tinnitus is genetically indicated is not certain. Scientists working on the Human Genome Project, for example, have not discovered a "tinnitus gene," but they have identified genes that are responsible for a few rare varieties of hearing loss, temporomandibular joint (TMJ) dysfunction, Ménière's Disease, and acoustic Neuroma.

Hereditary hemochromatosis is a genetic disease that is the result of inheriting two defective copies of a particular gene, one from each parent. The mutation in this gene causes the intestine to absorb too much iron. Over time, usually several years, this excess iron is deposited in the cells of the liver, heart, pancreas, joints, and pituitary gland. If left untreated, organ damage can result.

Hereditary Angioedema (HAE) is a very rare and potentially life threatening genetic condition that occurs in about 1/10,000 to 1/50,000 people. HAE symptoms include episodes of edema (swelling) in various body parts including the hands, feet, face, and airway. In addition, patients often have bouts of excruciating abdominal pain, nausea, and vomiting that is caused by swelling in the intestinal wall. Airway swelling is particularly dangerous and can lead to death by asphyxiation.

Heredity does seem to play a role. Ten percent of lupus patients have a first-degree relative (sister, daughter, son, mother) or a second-degree relative (aunt, uncle, first cousin) with lupus. Therefore, 90 percent of lupus patients DO NOT have relatives with lupus. Even in identical twins, when one sibling has lupus and the other twin does not, it is believed there are environmental factors that play an important role.

No, hammertoes and bunions are caused by pathomechanics, although shoe gear can aggravate the symptoms that can cause these problems.

Research indicates that genetic factors may play a part in causing autism in some individuals. Most researchers agree that autism probably results from many separate causes.

MS is not a hereditary disease in the same sense that hemophilia, sickle-cell anemia and Huntington's disease are inherited. However the susceptibility to develop MS is clearly inherited. The chance of developing MS is increased in the close relatives of someone with MS compared to the normal population. A child or sibling of someone with MS is about 10 times more likely to get MS than someone in the population at large, or about 1 out of 100 in people of northern European extraction.

While heredity plays a role in the development of Alzheimer's disease, the causes are probably multiple. In less than 5 % of cases, there may be a genetic link especially if the disease manifests itself in middle age. This "early onset" AD (age of onset less than 65 years of age) or "familial" AD has been attributed to genetic defects on chromosomes 1, 14, and 21.

There is no proof that Social Phobia is hereditary. Some epidemiologic data suggest it, but there are not enough elements to warrant a conclusion. The same occurrence in one of the parents cannot be regarded as evidence. A person's self-concept, values, and beliefs, as well as many current feelings and emotions, may have their roots in childhood, when the self was being formed.

Yes, heredity plays a role. In one out of five persons with alopecia areata, someone else in the family also has it. Those who develop alopecia areata for the first time after the age of thirty years have less likelihood that another family member will have it. Those who develop their first patch of alopecia areata before the age of thirty have a higher possibility that other family members will also have it.

There is an increase in AMD among children of AMD patients. This is one more reason why your children, after age 40, should have regular eye exams at least every other year.

To some extent, but this does not mean that it is impossible to treat. Environment, stress and even your personality can play a role. Genetics are also said to play a part in baldness. However, Hair Fantastiques success rate with thinning hair and male patter baldness is very high.top

According to estimates, approximately 29.5 million people in the United States suffer from migraine. Four out of five (80 percent) of them report a family history of migraine, but scientists are not sure if this is genetic or a family predisposition. Despite the uncertainty, a child has a 50% chance of having migraine if one parent suffers and a 75% chance if both parents suffer.

It is more correct to say that there is evidence of a strong family history and genetic relationship to bipolar disorder.

CML is chromosomal/genetic but not hereditary. This means it is not caused by a gene being passed on. During the patient's lifetime, they somehow were exposed to something which damaged their genes. This resulted in the translocation of the 9 and 22 chromosome, and led to CML. However, there are familial incidences among 2 or more family members in other myeloproliferative disorders so the answer is not clear.

Hereditary hemochromatosis is an inherited condition. It occurs when a person inherits two copies of a mutation, one from each parent. People with one copy of this mutation are carriers for the condition and usually have little or no excess accumulation of iron. It is estimated that 10% of the population are carriers for hemochromatosis. However, not all people with two genetic mutations develop signs and symptoms of the disorder during their lifetimes.

Most attacks occur spontaneously with no apparent reason, however anxiety, stress, minor trauma, surgery, and illnesses such as colds and flu have been cited as triggers. Trauma to the oral cavity caused by dental procedures make HAE patients particularly vulnerable to airway attacks. Patients have also reported swelling in extremities following typing, prolonged writing, pushing a lawn mower, hammering, shoveling, and other physical activities.