Diabetes essay

diabetes essay

Short Essay on diabetes

Ketones can make you throw up, have difficulty breathing, cause excessive thirst, cause dry, itchy skin, or even cause coma. Hypoglycemia occurs when blood glucose levels become too low. . It can be cause by taking too much insulin, eating too little, skipping meals, eating at the wrong time, exercising too intensely or for too long, or by drinking alcohol on an empty stomach. . If your blood glucose is too low you may feel hungry, confused, tired, shaky or nervous. Complications elevated glucose levels in the blood over time can hurt your organs. . diabetes can damage kidneys, eyes and nerves, and makes heart and blood vessel disease more likely. . diabetics can defend themselves from complications by keeping their glucose levels under control.

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Glucose then builds up in the blood and causes diabetes. Type i diabetes exhibits the following warning signs: Losing weight without trying, an increased need to urinate, increased hunger. Increased thirst, trouble seeing, feeling tired and/or, going into a coma. For Type i diabetics, treatment usually consists of a healthy diet, exercise, and insulin shots to replace the insulin that your body no longer produces. . Most insulin-dependent diabetics test their blood at least four times per day to monitor their bloods glucose level. This is necessary to keep their blood glucose within certain limits. . If blood glucose is not monitored, and if insulin levels are not kept in check, three things may happen:. . Ketoacidosis occurs when your blood glucose levels are highly elevated, by either eating too much or taking too little insulin, by stress or illness. . In this case, there is too little insulin in the blood. . your body then begins breaking down fat for energy, producing chemicals called ketones. .

Type i diabetes (a.k.a. Juvenile Onset diabetes, Insulin-Dependant diabetes). Insulin-dependant is caused by damage to the pancreas. . The pancreas contains beta cells, which make insulin. . With Type i diabetes, the deficiency of insulin is due to a decline in the number of beta cells the pancreas contains. . It appears that certain genes make type i diabetics more susceptible, but a triggering factor (usually a viral infection) sets it off. . In most people resumes with Type i diabetes, the immune system makes a mistake, attacking the beta cells and causing them to die. . Without the beta cells, you cannot produce insulin. .

diabetes essay

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Insulin, insulin is a hormone secreted by specialized cells in the pancreas in response to (among other things increased blood glucose concentration. . The primary role of barbing insulin is to control the transport of glucose from pdf the bloodstream into the cells. . After consuming a meal, insulin enhances the uptake of the energy nutrients (amino acids, glucose, and fatty acids). . Insulin helps maintain blood glucose within normal limits and stimulates protein synthesis, glucose synthesis in the liver and muscle, and fat synthesis. Without insulin, or when insulin is ineffective, glucose regulation falters and the metabolism of energy-yielding nutrients changes. . In diabetes, there is too much glucose in the blood. . When glucose builds in the blood instead of going into the cells, it can cause two problems: your cells may become starved for energy. Over time, high glucose blood levels may harm your kidneys, heart, eyes or nerves. There are two main types of diabetes, type i and Type ii, described below.

The functional alterations include an early increase in glomerular filtration rate (GFR) with intraglomerular hypertension, subsequent proteinuria, systemic hypertension, and eventual loss of renal function (Hostetter., 1982; fioretto and mauer, 2007).6.1 Stages of dn, based on the gfr decline, renal physiology and. Different stages of diabetic nephropathy. Designation Characteristics gfr (ml/min/1.73m2) Albumin Excretion Chronology, stage 1 Hyperfunction and hypertrophy Glomerular Hyperfiltration 90 may be increased Present at the time of diagnosis. Stage 2 Silent stage Thickened gbm expanded mesangium mg/dl 15-25 years. Stage 5 Uremic esrd. Diabetes is a metabolic disorder that is characterized by high blood glucose and either insufficient or ineffective insulin. . 5.9 of the population in the United States has diabetes, and diabetes is the seventh leading cause of death in our country. . diabetes is a chronic disease without a cure, however, with proper management and treatment, diabetics can live a normal, healthy lives.

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diabetes essay

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Therefore, it has been concluded that obesity may be a major risk factor for T2D development but it is the vulnerability of the?-cell pool which determines whether obesity triggers the development of T2D or not (McCarthy, 2010). 2.5 T2D and its Complications. The increasing prevalence of T2D represents a significant burden to human health bsa because of its numerous and often serious complications (Mohan., 2013). These complications of T2D are divided into macrovascular and microvascular complications (Cade, 2008). Macrovascular diseases include coronary artery disease (cad peripheral vascular disease, and atherosclerosisis (Papa., 2013). Microvascular complications occur mainly in the eyes, kidneys, peripheral lower limbs and nerves, resulting in diabetic retinopathy, diabetic nephropathy, diabetic foot and diabetic neuropathy, respectively (Fowler, 2008). These complications lead to reduced quality of life and increased morbidity and mortality from end-stage renal disease (esrd) and cardiovascular disease (CVD) (Van dieren., 2010) The chronic hyperglycemia plays a central role in the development and progression of the vascular complications, which often.

Prospective randomized clinical trials and epidemiological studies have shown that glycemic control is interrelated with reduced rates of retinopathy, nephropathy, neuropathy and cardiovascular diseases and considered as the main therapeutic goal for the prevention of complications of diabetes (Middleton, 2003; American diabetes Association, 2013). Figure.4: Complication of diabetes (Source: International diabetes Federation, 2014). 2.6 diabetic Nephropathy (dn dN is a multifactorial disorder caused by hyperglycemia-induced renal damage in genetically predisposed patients (savage and Maxwell, 2009). It is the leading cause of esrd (Yacoub and Campbell, 2015). Dn refers to a characteristic set of structural and functional kidney abnormalities in patients with diabetes (Kanwar., 2011). The structural abnormalities include hypertrophy of the kidney, increase in glomerular basement membrane (GBM) thickness, nodular and diffuse glomerulosclerosis, tubular atrophy, and interstitial out fibrosis (Kimmestiel and Wilson, 1936; Alebiosu., 2002; Tervaert., 2010).

Mumbai.3 Western Ramachandran., 2001, jaipur 12.1 Western Gupta., 2004, nagpur.2 Western Mohan., 2008. Manipur.0 Eastern Singh., 2001, assam.2 Eastern Shah., 1999, kolkata 11.5 Eastern Kumar., 2008. Chennai 18.6 Southern Ramachandran., 2008, kochi 19.5 Southern Menon., 2006, kerala 27.11 Southern Jose., 2013. Bangalore 10.7 Southern Ajay., 2008, hyderabad 14.1 Southern Ajay., 2008.4 Pathophysiology of T2D, t2D is characterized by the combination of disturbances in insulin secretion by pancreatic?-cells and peripheral insulin resistance, which is often related to obesity (Guja., 2012). Insulin resistance is caused by defects in the signaling pathways that process the insulin signal in its target tissues (Wolfs., 2009). Normally, plasma glucose levels are maintained within a narrow and well-balanced range, known as glucose homeostasis (Baynes and Dominiczak, 2004).

However, as a consequence of impaired insulin secretion and resistance, glucose uptake and release by pivotal tissues is disturbed which eventually leads to hyperglycemia (DeFronzo, 2004; defronzo and Tripathy, 2009). It has often been suggested that the disease starts with insulin resistance and is followed by increased insulin production by the pancreatic?-cells to maintain glucose homeostasis (Weir and Bonner-weir, 2004). At a later stage, due to the long-term compensation mechanism by the?-cells to keep up with the higher insulin demand, these cells ultimately undergo further damage and apoptosis (Prentki and Nolan, 2006). When the ultimate demand of insulin release cannot be satisfied, higher plasma glucose levels are the result. The vulnerability of the?-cell pool in insulin-resistant conditions is determined by problems related to?-cell survival,?-cell regeneration, or?-cell development which are involved in the insulin secretion pathways (Kahn, 2003; Wolfs., 2009). Figure.3: Pathophysiology of T2D (Source: Inzucchi and Sherwin, 2011). It has been shown that although obesity is a major risk factor for diabetes (around 50 of the patients with diabetes are obese a significant proportion of T2D are not obese (Pimenta., 1995).

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In India age standardized prevalence of T2D was reported to.1 (Ramachandran., 2001). The national Urban diabetes Survey (nuds) by ramachandran. (2001 reported that T2D prevalence was higher mini in the southern part of India (13.5 in chennai,.4, in Bangalore and.6 Hyderabad) as biography compared to eastern (11.7 in Kolkatta northern (11.6 in New Delhi) and Western India (9.3 in Mumbai). T2D prevalence was three times higher among the urban population (8.2) as compared to the rural population (2.4) (Ramachandran., 1992). The prevalence of T2D across different cities has been depicted in Table.2. Prevalence of diabetes in India. Place Prevalence Area Author, kashmir.05 Northern Ahmad., 2011, new Delhi 15.0 Northern Prabhakaran., 2005. Jammu.15 Northern Shora., 2014, punjab.6 Northern Wander., 1994, chandigarh 13.6 Northern Anjana., 2011.

diabetes essay

Almost half of all adults with diabetes are between the ages of 40 and 59 years and more than 80 people with diabetes in this age group live in low and middle income countries (International diabetes Federation, 2013). Among the 10 countries with the largest numbers of people predicted to have diabetes mellitus in 2030, five are in Asia (China, india, pakistan, Indonesia and Bangladesh) (Shaw., 2010). Figure.2: Epidemiology of diabetes (Source: International diabetes Federation, 2014). As per report given by International diabetes Federation (2013 India day had.1 million people with diabetes and this number is predicted to increase by 109.0 million by 2035. In a study conducted by Indian council of Medical ResearchIndia diabetes (icmr-indiab the prevalence of pre-diabetes and diabetes in Chandigarh was reported.6 and.6, respectively (Anjana., 2011). A study from India showed a significant increase in dm prevalence in both urban (from.9 in 2000.2 in 2006) and rural areas (from.4 in 2000.2 in 2006) (Ramachandran., 2008). The increasing worldwide prevalence of T2D combined with the shift in its age of onset will heavily burden health-care systems in the future. Similarly, for India the global burden of T2D by the year 2030 has been estimated to be 87 million (Snehalatha and Ramachandaran, 2009).

environmental factors in influencing susceptibility to T2D is well known and among these factors are increased caloric intake and a sedentary lifestyle (Neel, 1962). The spread of the westernization in developing countries also explains the epidemic explosion of the disease (Wild., 2004; Danaei., 2011). 2.3 Epidemiology of T2D. As compared to the other two major types of diabetes, T2D is the most prevalent form and is responsible for 90 of the overall diabetes prevalence (Malecki, 2005; Lyssenko and laakso, 2013). A global epidemic is predicted by world health Organisation (who with an estimated average increase in the prevalence of diabetes for all age groups from.8 in 2000.8 in 2030 (Wild., 2004). About 387 million people were estimated to have diabetes in the year 2014 and if these trends continue, by 2035, some 592 million people will have diabetes (International diabetes Federation, 2014). Between 20, there is an expected 70 increase in numbers of adults with diabetes in developing countries and 20 increase in developed countries (Shaw., 2010).

The genetic component can be analyzed by comparing the risk of developing disease between relatives of patients with T2D and the background population, often referred to as sibling relative risk, which is around 3 in most populations (Lyssenko., 2005). High concordance rate obtained in monozygotic twins (96) supports a substantial business contribution of genetic factors to T2D (Kaprio., 1992; Medici., 1999). Furthermore the lifetime risk of developing T2D is 40 for individuals who have one parent with T2D and almost 70 if both parents are affected (Kobberling., 1982; Groop., 1996). The general estimates of heritability (h2) of T2D are.49 and the relative recurrence risk for a sib of an affected person (?s) to develop T2D.5 (Risch, 1990; Lander and Schork, 1994). To date, approximately 70 susceptibility loci have been identified as being associated with T2d, among them 45 loci were identified in European populations and 29 loci were identified in Asian populations, especially in East and south Asians. However, all the genetic loci identified so far account for only about 10 of the overall heritability of T2D (Sun., 2014). The involvement in the pathogenesis of T2D of multiple genes that interact with each other in an epistatic manner may explain why, despite the enormous efforts made to date, the identification of genetic determinants responsible for an increased susceptibility to T2D still remains unsolved (Doria. Genetic predisposition in T2D is also supported by the observation of differences in disease prevalence rates among populations, even after migration of entire ethnic groups to another country which indicates that this difference is independent from the environmental influences (Flegal., 1991).

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Review of Literature.1 Definition and Classification, diabetes mellitus (DM) is a group of metabolic disorders of heterogeneous etiology characterized by absolute or relative insulin night deficiency leading to hyperglycemia and an altered metabolism of glucose, fat and protein (Pietropaolo., 2007; American diabetes Association. The disease is classified as type 1 diabetes (T1D type 2 diabetes (T2D gestational diabetes and other types of diabetes (American diabetes Association, 2014). T1D and T2D are considered as the two major forms. T1D normally develops before adulthood and is typically caused by an auto-immune destruction of the insulin-producing beta-cells leading to an absolute insulin deficiency, whereas T2D is normally associated with inadequate beta-cell response to the progressive insulin resistance (Kishida., 2012; Canivell and Gomis, 2014;. Gestational diabetes is defined as a state of glucose intolerance during pregnancy that usually subsides after delivery but has a major implication for subsequent risk of T2D (Philips., 2013). The other less common form of diabetes include genetic defects in insulin action, genetic defects in cell function, diseases of exocrine pancreas and drug or chemical induced diabetes (American diabetes Association, 2014). Figure.1: Criteria for the diagnosis of diabetes (Source: American diabetes Association, 2014). 2.2 Genetics of T2D, t2D results from the complex interplay of many different pathways under the combined control of genetic, epigenetic and environmental factors (Doria., 2008; Prasad and Groop, 2015).

Diabetes essay
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