The focus for finding an immunological cure for diabetes mellitus type 1 should be directed to prevent maturation or cause inactivation of autoreactive T cells to halt the destruction of insulin-producing beta cells. Inactivation of the autoreactive T cells can be accomplished in two ways. First, antigen presenting cells, such as dendritic cells, that present auto antigens can be modified to prevent maturation or expression of co-stimulatory receptor. Secondly, the T cell can remain in the naïve state or be inactivated after activation by an antigen presenting cell. Diabetes mellitus, commonly known as diabetes, is categorized into type 1, insulin dependent, and type 2, insulin resistant, and the focus will be on the former. Type 1diabetes is a chronic autoimmune disease occurring when insulin-producing beta cells are destroyed by autoreactive CD8 T cells.1 Beta cells are endocrine cells that only secrete insulin and are found in the islets of Langerhans in the pancreas. When the first clinical symptoms of diabetes are apparent in a patient, 80% of the beta cells have already been destroyed.1When large amounts of beta cells are destroyed, it only leaves a fraction of insulin left for the body to utilize, which is often not enough to support function. Type 1 diabetes affects an estimated 30 million people worldwide.1 There is no cure for type 1 diabetes and someone with this disease would need to monitor their blood glucose levels and manually give themselves insulin injections to regulate those levels. However, using insulin injections is not a cure.
In type 1 diabetes the antigen presenting cells present beta cell auto antigens to CD4 T cells.2 The activated autoreactive CD4 T cells then produce the cytokine IL-2 which in turn a...
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5. Roep B. The role of T-cells in the pathogenesis of Type 1 diabetes: from cause to cure. Diabetologia [serial online]. March 2003;46(3):305-321. Available from: MEDLINE with Full Text, Ipswich, MA. Accessed November 19, 2013.
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My patient Hannah is a 10 year old 4th grade student who loves volleyball and was just diagnosed with type 1 diabetes mellitus. I’m going to explain to you what her disorder is, the signs and symptoms, causes of this disorder, body changes, economic impact, and how she will manage this disorder especially at such a young age.
The beta cells affect a person’s glucose regulations within the blood. This is because the beta cells are in charge of sending insulin arou...
According WebMD 2014. Diabetes mellitus (or diabetes) is a chronic, lifelong condition that affects your body's ability to use the energy found in food. There are three major types of diabetes. Type 1 diabetes mellitus, type 2 diabetes mellitus and gestational diabetes. It is a hormonal disorder of the pancreas either decrease in insulin level also known as hypoinsulinism or increase in insulin level also known as hyperinsulinism. Lowered amounts, insufficient of, or ineffective use of insulin leads to the disorder of diabetes mellitus. It is common chronic disease requiring lifelong behavioral and lifestyle changes. According to Peakman (2012). The development of type 1 diabetes mellitus is a genetic and an autoimmune process that results in destruction of the beta cells of the pancreas, leading to absolute insulin deficiency. There is usually a pre-diabetic phase where autoimmunity has already developed but with no clinically apparent insulin dependency. Insulin autoantibodies can be detected in genetically predisposed individuals as early as 6-12 months of age. In persons genetically susceptible to type 1 diabetes, a triggering event, possibly a viral infection the leads to production of autoantibodies that kill the beta cells and results in decline and a lack of insulin secretion. According to Wherrett. It is caused by impaired insulin secretion and insulin resistance and has a gradual onset. Those with type 2 diabetes may eventually need insulin treatment. Gestational diabetes mellitus is glucose intolerance during pregnancy in a woman not previously diagnosed with diabetes, this may occur if placental hormones counteract insulin, causing insulin intolerance. Complications in diabetes mellitus includes: Hypoglycemia it is ca...
Type 1 Diabetes Mellitus is also referred to as insulin-dependent as the secretion of the hormone insulin by the pancreas is reduced to minor levels due to the destruction of the pancreatic beta cells by immune system of the body. Therefore, Type 1 Diabetes is an autoimmune condition due to the fact that the body is harming the pancreas with antibodies so beta cells cannot make any insulin for bloodstream to take in glucose. The fact that the cells in the body cannot take in glucose means that it builds up in the blood and hyperglycaemia occurs. This abnormally high level of blood glucose is able to harm the nervous system, tiny blood vessels in the kidneys, heart and the eyes. Type 1 Diabetes is fatal when left untreated as it then causes heart disease, kidney disease, damage to the nerves, stroke and
The article, “Pancreas Transplant: A Cure for Diabetes?” written by Eli A. Friedman, M.D., explores the possibility of a cure for type 1 diabetes and the implications involving this experimental procedure. The article discusses current procedures and treatments that are commonly used to control type 1 diabetes and highlights provisional treatments that evolved into pancreatic transplant surgery.
Before the discovery of Insulin, the life changing hormone that had originated from the research and experiments of Charles Best and Frederick Banting, Type 1 Diabetes was considered to be a death sentence to anyone who was diagnosed with it. It was just a matter of a few months to a year, a countdown until someone found them laying on their deathbed. In the late 1800’s, scientists discovered that by removing the pancreas of a dog, it caused it to suffer from Diabetes. This started a surge of research from many scientists, but no one was able to come up with a cure for this killer disease. That is, until 1921 when Frederick Banting, along with Charles Best, were able to successfully extract insulin fr...
Pancreatic transplantation is an established therapy for patients with type 1 DM. Discuss the evidence, the advantages and disadvantages and the outcomes of pancreatic transplantation. What other developments are they’re relating to beta-cell transplantation and what are the difficulties?
There are two types of diabetes. The type 1 and type 2 diabetes. Type 1 diabetes is referred to as dependent diabetes mellitus (IDDM), or juvenile onset diabetes mellitus. The pancreas undergo an autoimmune attack by the body itself, and is rendered incapable of making insulin. It is in type 1 diabetes where abnormal antibodies are normally found. Antibodies are proteins in...
Due to the inability to produce Insulin from the Pancreatic Beta cells located in the Islet of Langerhans. This occurs because the Body’s Immune system identifies the Beta cells as “foreign” material. B lymphocytes synthesise antibodies specific to the Beta cell and these cause more B and T lymphocytes to travel to the Islets. T cells are also involved and secrete chemical messengers called cytokines which allow communication between the immune cells to co-ordinate the attack. Cytokines advocate the necrosis of Beta cells and, and this leads to a larger production of Immunoglobins targeting specifically the Insulin within them. This causes the Beta cells to swell up also known as “Insulitis”, and is the early stages of Diabetes. Most people don’t realise they are developing diabetes because symptoms apparent for several years, and by this time over 90% of their Beta cells are destroyed and are unable to be restored. This is referred to as “Insulin Dependent Diabetes” and occurs in the early stages of life usually between the ages of 5 and 20...
Type 1 diabetes is a lifelong auto-immune condition in which the body can't control the
Serup, P. S. (2001) Islet and stem cell transplantation for treating diabetes. Development of biology, 322(6). 29-32
United States. (2011). Type 1 Diabetes Research: Real Progress and Real Hope for a Cure. Hearing Before the Committee on Homeland Security and Government Affairs, United States Senate, of the One Hundred Eleventh Congress, First Session, June 24, 2009. Washington, DC: Washington: U.S. G.P.O., 2011
Diabetes type 1 occur when the immune system destroys the beta cells, they are responsible to create insulin and are located
Diabetes is a chronic disorder of metabolism characterized by a partial or complete deficiency of the hormone insulin. With this, there are metabolic adjustments that occur everywhere in the body. Specific to this child is Type One Diabetes. This is characterized by demolition of the pancreatic beta cells, which produce insulin. Because of this, it leads to complete insulin deficiency. Within Type One diabetes, there are two different forms. First there is immune-mediated deficiency, which typically results from an autoimmune destruction of the beta cells. The second type is called idiopathic type one, in which the cause is unknown. (Wong, Hockenberry, Wilson, 2015)
According to Krisha McCoy on her article: The history of Diabetes; “In 150 AD, the Greek physician Arateus described what we now call diabetes as "the melting down of flesh and limbs into urine." From then on, physicians began to gain a better understanding about diabetes. Centuries later, people known as "water tasters" diagnosed diabetes by tasting the urine of people suspected to have it. If urine tasted sweet, diabetes was diagnosed. To acknowledge this feature, in 1675 the word "mellitus," meaning honey, was added to the name "diabetes," meaning siphon. It wasn't until the 1800s that scientists developed chemical tests to detect the presence of sugar in the urine”.