Hyperglycation of extra and intracellular proteins; marker or active element of diabetic pathomechanisms

2015 ◽  
Vol 51 (3) ◽  
pp. 213-220
Author(s):  
Andrzej Szutowicz

States of chronic hyperglycaemia, irrespective of the diabetes type result in excessive non enzymatic glycation of several proteins in extra and intracellular compartments of the body. Hyperglycation of hemoglobin is employed for assessment of long term control of glycaemia in diabetic patients. However, hyperglycaemia may change biological properties of several proteins thereby contributing to miss function and structural impairments of several organs in the course of diabetes.

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A373-A373
Author(s):  
Francisco Jose Zayas ◽  
Marianne Hernandez-Negron ◽  
Michelle Marie Mangual Garcia

Abstract SARS-COV-2 has caused millions of deaths in less than one year, yet little is known about the long-term consequences survivors may suffer. The novel coronavirus uses the ACE2 receptor to infect human cells, allowing it to target organ systems with such receptors including the respiratory, cardiovascular, gastrointestinal and endocrine system. The purpose of this case report is to describe the long-term implications COVID-19 may cause in the endocrine system. A 46-year-old woman was referred to our clinic due to abrupt uncontrolled blood glucose levels ranging from 200-550mg/dL after being infected with COVID-19 for approximately 10 weeks. She has a past medical history of Diabetes Mellitus Type 2 which was diagnosed 3 years ago and was well controlled with diet. Present history reveals polyuria, polydipsia, tiredness and a decreased appetite. Laboratory values show HbA1C 12, negative islet cell antibodies/GAD antibodies, low C-peptide, high TSH, normal FT4 and positive anti-TPO antibodies/thyroglobulin antibodies. The sudden loss of blood glucose control along with low c peptide levels without evidence of autoimmunity support the diagnosis of Pancreatic Diabetes. SARS-COV-2 infection may cause Diabetes Type 3, rendering a patient dependent on insulin use for life. Covid-19 survivors, with or without a previous history of endocrinopathy, should be evaluated for possible long-term sequels of infection as the virus targets tissues throughout the body.


1976 ◽  
Vol 82 (4) ◽  
pp. 753-757 ◽  
Author(s):  
N. J. Christensen ◽  
B. Neubauer

ABSTRACT The present study describes the results of examinations of the noradrenaline and adrenaline concentrations in the human pancreas as well as in a number of other organs. Tissue specimens were obtained at postmortem examination. Adrenaline was present in small amounts in the cardiovascular system, the liver and the spleen in comparison with the noradrenaline concentration. The pancreas, especially the body of the pancreas, contained, however, considerable amounts of adrenaline. The average adrenaline concentration was approximately 20 times higher in the pancreas than in the other organs examined. The greatest concentration of adrenaline was found in the posterior and superior parts of the body of the pancreas. There was no relationship between the cause of death in the human subjects and the adrenaline concentration in the pancreas and large amounts of adrenaline were also found in tissue specimens of pancreas obtained from long-term diabetic patients. Adrenaline was present in the pancreas of the rat, dog and rabbit but in small amounts in comparison with the noradrenaline concentration.


1975 ◽  
Vol 58 (4) ◽  
pp. 635-644
Author(s):  
Leon Golberg

Abstract The approach to safety evaluation is strongly influenced by the standard of safety to which one aspires. Practical considerations demand that realistic limits be set to the attainable assurances of freedom from anticipated hazard under actual conditions of use of a product. The fact is that, in the interests of consumer health, more can be expected from a flexible, intelligent, and experienced approach to safety evaluation than from efforts at conformity with a set of rigidly standardized requirements that are theoretically all-encompassing. Establishment of safety demands a wide background of information about the properties and likely uses of the product; above all, knowledge of the chemical composition of the product and its impurities, degradation products, and metabolites is essential. Lack of such information is a frequent source of errors in safety evaluation. Based on a secure foundation of this sort, a program of investigations may be designed, aimed at establishing the basic biological properties of the material. Determination of the metabolic dynamics of the principal chemical agent or agents makes possible the emergence of a clear picture of the behavior of the compound(s) in the body and paves the way for more specialized studies of long term toxicity, carcinogenicity, effects on reproduction and teratogenesis, and investigations of multitest mutagenic potential. Emphasis is laid on the problems of interpretation of results in terms of hazard to man and on the crucial contribution that experience of human exposure can make toward assuring safety-inuse. Decisions on acceptable risk are the joint responsibility of many individuals but an essential element in reaching such decisions is contributed by the depth of understanding and broad experience of the toxicologist.


Author(s):  
Mohamad S. AlSalhi ◽  
Sandhanasamy Devanesan ◽  
Khalid E. AlZahrani ◽  
Mashael AlShebly ◽  
Fatima Al-Qahtani ◽  
...  

Diabetes mellitus (DM) is a common metabolic disease indicated by high sugar levels in the blood over a prolonged period. When left untreated, it can lead to long-term complications, such as cardiovascular disease, stroke, and diabetic retinopathy or foot ulcers. Approximately 415 million people (about 8.3% of the world’s population) had diabetes worldwide in 2015, with 90% of the cases classified as Type 2 DM, which is caused by insulin resistance that arises mostly from being overweight and from a lack of exercise. DM affects every part of the body, including the erythrocytes. The aim of the present report is to gain insight into the damage done to the erythrocytes of patients classified with pre-diabetes and diabetes (plenty are found in the Kingdom of Saudi Arabia, a country where young people encompass a large segment of the population). The study presents results on the morphological analysis of erythrocytes by atomic force microscopy (AFM) and molecular investigations by fluorescence spectroscopy (FS). Our results indicate significant differences (in the morphology, size, and hemolytic end products) between the erythrocytes of diabetic patients (HbA1C, glycated hemoglobin, levels of 8–10%) and normal controls. It is well-known that DM and smoking are two major contributory factors for cardiovascular diseases (CVDs), and our observations presented in this study suggest that diabetes plays a relatively less damaging role than smoking for CVD.


2021 ◽  
Vol 1 (11) ◽  
pp. 35-41
Author(s):  
Nikolay V. Pimenov ◽  
◽  
Olga A. Serezhechkina ◽  
Regina F. Ivannikova ◽  
◽  
...  

The problem of bordetella bronchiseptica infection in small pets is widespread and requires improvement of therapeutic approaches based on modern scientific data and research achievements. The article provides data on the causative agent of bordetellosis, information on its resistance to antimicrobial drugs and a description of the semiotics and course of infection in a private rabbit farm. Antibiotic resistance of bacteria, its ability to long-term carriage in the body and these properties actualize the problem of improving antibacterial treatment, prevention tactics and scientific research in this matter.


2021 ◽  
Vol 12 (1) ◽  
pp. 110-113
Author(s):  
S Jagadesh Kumar ◽  
Shreyas D M ◽  
Kiran M Goud

Diabetes mellitus is a global health problem of this era. Presently India is having the largest diabetic population of 50.8 million. In 2015, diabetes was the direct cause of 1.6 million deaths. Diabetes Mellitus is a metabolic disorder of multiple aetiology characterized by chronic hyperglycaemia with disturbances of carbohydrates, fat and protein metabolism resulting from defects in insulin secretion. Diabetes, particularly type 2 is associated with various long-term complications like Diabetic retinopathy, nephropathy, neuropathy, etc., Globally diabetic neuropathy affects approximately 132 million people as of 2010 (1.9% of population). There is a higher prevalence (60.4%) and incidence (8.76%) of sensory peripheral neuropathy among the observed diabetic patients. In Ayurveda, the symptoms of Diabetic neuropathy are explained under the headings of Purvaroopa and upadrava of Prameha. Madhumeha is a bahudrava shleshma condition. So, Sarvanga Udvartana and Sarvanga Takradhara is been adopted to counteract the Samprapti of Prameha. A minimum of 20 subjects who fulfilled the diagnostic and inclusion criteria was subjected to the intervention. The overall results in the study revealed statistically highly significant result after the treatment on reducing symptoms and blood sugar levels.


2007 ◽  
Vol 10 (10A) ◽  
pp. 1200-1205 ◽  
Author(s):  
Miguel A Rubio ◽  
Manuel Gargallo ◽  
Ana Isabel Millán ◽  
Basilio Moreno

AbstractBackgroundModification of lifestyle is the main therapeutical approach in the treatment of obesity, but use to fail on long terms of time. Addition of anti-obesity drugs allows keeping the weight loss during years and improving obesity-related comorbidities.MethodsThis review is an actualisation on efficacy, safety and tolerability of the approved drugs on the long-term treatment of obesity (orlistat and sibutramine). New indications and effects of their use far beyond the weight loss are as well commented. Finally, potential benefits of the administration of CB1 antagonist rimonabant on the weight loss and cardiometabolic risk factors are analysed in detail.DiscussionA decade of experience on the use of orlistat and sibutramine has demonstrated their higher efficacy on the weight loss when compared to placebo either on adult or teenage population as well as safety and tolerability on long-term administration. Beneficial effects on the lipid profile, glycosilated haemoglobin on diabetic patients, blood pressure and levels of inflammatory cytokines, contribute to decrease the cardiovascular risk on obese patients. Phase III clinical trials using rimonabant show additional benefits to the expected weight loss, mainly reducing visceral fat and cardiometabolic risk factors.ConclusionPharmacological treatment of obesity must be considered as a therapeutical tool that has to be used together with long-term lifestyle changes, contributing to the body weight reduction as well as to the improvement of the cardiometabolic risk related to obesity.


Author(s):  
Dr Reshna V

Diabetes Mellitus (DM) is a long-term metabolic disorder that affects many organs in the body. Diabetes may be linked to a serious type of Coronavirus Disease in 2019 (COVID-19). COVID-19 will make people with diabetes three times more likely to become seriously ill or die. They discovered that advanced age, obesity, and other medical conditions linked to diabetes are also associated with increased risk. In the countries hardest hit by the pandemic, increased morbidity and mortality from COVID-19 in diabetic patients have been observed, and this link, as well as the best management of infected diabetic patients, deserve further investigation. Antidiabetic medications that can minimise inflammation while maintaining good glycemic control are ideal. Patients admitted to the hospital with extreme COVID-19 can need changes to their diabetes care, such as stopping current medications and starting insulin therapy.


1997 ◽  
Vol 2 (4) ◽  
pp. 293-300 ◽  
Author(s):  
Ype H. Poortinga ◽  
Ingrid Lunt

In national codes of ethics the practice of psychology is presented as rooted in scientific knowledge, professional skills, and experience. However, it is not self-evident that the body of scientific knowledge in psychology provides an adequate basis for current professional practice. Professional training and experience are seen as necessary for the application of psychological knowledge, but they appear insufficient to defend the soundness of one's practices when challenged in judicial proceedings of a kind that may be faced by psychologists in the European Union in the not too distant future. In seeking to define the basis for the professional competence of psychologists, this article recommends taking a position of modesty concerning the scope and effectiveness of psychological interventions. In many circumstances, psychologists can only provide partial advice, narrowing down the range of possible courses of action more by eliminating unpromising ones than by pointing out the most correct or most favorable one. By emphasizing rigorous evaluation, the profession should gain in accountability and, in the long term, in respectability.


Sign in / Sign up

Export Citation Format

Share Document