scholarly journals EFFECT OF THE SALTS OF MESO-OXALIC ACID ON ALLOXAN DIABETES MELLITUS

1951 ◽  
Vol 1 (1) ◽  
pp. 9-21 ◽  
Author(s):  
YOSHITO KOBAYASHI ◽  
SHIGERU OHASHI ◽  
SETSUYA TAKEUCHI
1951 ◽  
Vol 1 (1) ◽  
pp. 9-21
Author(s):  
Yoshito Kobayashi ◽  
Shigeru Ohashi ◽  
Setsuya Takeuchi

1994 ◽  
Vol 40 (1) ◽  
pp. 41-43
Author(s):  
R Ye Sadykova ◽  
V M Kodentsova ◽  
A V Dreval

Administration of a high-protein diet providing 7-7.8 g of tryptophan per kg of the ration to rats with streptozotocin and alloxan diabetes mellitus resulted in development of a trend to increased liver content of nicotinamide coenzymes and in increased 1-methylnicotinamide excretion with the urine in both groups of animals, this reflecting increased niacin synthesis from tryptophan. Sugar-reducing effect of high-dose nicotinamide was not potentiated by increase of protein share in the ration. These results permitted the authors to suggest that intensification of endogenous niacin synthesis from tryptophan contained in the ration may be one of the mechanisms of a protective effect of high- protein diets in diabetes.


2021 ◽  
Vol 7 (2) ◽  
pp. 1-14
Author(s):  
Olga N. Gulevskaya ◽  
Pavel A. Galenko-Yaroshevsky ◽  
Svetlana A. Lebedeva ◽  
Galina V. Sukoyan ◽  
Ivan I. Pavlyuchenko ◽  
...  

Introduction: The search for and development of new highly active medications and their combinations of the appropriate direction of action remains an urgent problem due to the complications of diabetes mellitus, especially burdened with atherosclerosis, including skin and vascular lesions. Materials and methods: The acute toxicity, histoprotective and dermatoprotective effects of mafusol, rexod, alprostadil and their combinations were studied in male rats with normoglycemia and alloxan diabetes complicated by exogenous hypercholesterolemia. Results: The combination of mafusol with rexod is less toxic than mafusol. In arteriovenous insufficiency of the tail, ischemia of the skin fold and skin flap, mafusol (6.25, 12.5 and 25.0 mg/kg in terms of fumarate), rexod (0.01 and 0.02 mg/kg) and especially their combination (6.25 and 0.01 mg/kg) have significant histoprotective, dermatoprotective, hypoglycemic and lipid-lowering effects, both in normoglycemia and alloxan diabetes complicated by exogenous hypercholesterolemia. Alprostadil (10 mg/kg) and especially its combination with mafusol (6.25 mg/kg) have a dermatoprotective effect. Discussion: Rexod reduces the acute toxicity of mafusol. The dermatoprotective effect of mafusol, rexod and, to a greater extent, their combination may be associated with increased microhemocirculation, antihypoxic properties and activation of energy processes in the skin, normalization of carbohydrate and lipid metabolism in alloxan diabetes, complicated by exogenous hypercholesterolemia, increased reserve capacity of the antioxidant system, and possibly with the ability of mafusol and rexod to reduce blood viscosity and improve rheological properties of the blood. The combination of mafusol with alprostadil increases the dermatoprotective activity of the latter. Conclusion: Combinations of mafusol with rexod and alprostadil can be recommended for clinical study as dermatoprotective agents for treating traumatic injuries and diabetes mellitus complicated by atherosclerosis.


1994 ◽  
Vol 40 (4) ◽  
pp. 45-47
Author(s):  
R. Ye. Sadykova ◽  
N. N. Skaletsky ◽  
A. V. Dreval ◽  
L. A. Kirsanova ◽  
P. I. Shishko

The authors present data- on the protective effect of newborn rabbits pancreatic islet cell culture xenotransplantation of Langerhans islets P-cells of rats with alloxan diabetes. This effect was the most marked in rats fed diets with normal or increased protein content. The authors discuss a possible stimulating effect of rabbit islet cell culture xenooransplantation on regeneration processes in recipient rat pancreatic islets. This effect was better pronounced in rats kept on rations with increased protein content. Further experiments will help more accuretaly define the indications for therapy of insulindependent diabetes mellitus by xenokansplantations of islet cell cultures.


2016 ◽  
Vol 162 (1) ◽  
pp. 35-37 ◽  
Author(s):  
V. V. Emelianov ◽  
E. A. Savateeva ◽  
L. P. Sidorova ◽  
T. A. Tseitler ◽  
I. F. Gette ◽  
...  

1988 ◽  
Vol 35 (3) ◽  
pp. 399-404 ◽  
Author(s):  
YOSHIMASA TASAKA ◽  
YUKIKO INOUE ◽  
HIROSHI MATSUMOTO ◽  
YUKIMASA HIRATA

2020 ◽  
Vol 11 (1) ◽  
pp. 37-42
Author(s):  
Irina V. Volkhina ◽  
Evgenii G. Butolin

Despite comprehensive study of features of the reasons and a pathogeny of a diabetes mellitus, its timely diagnostics, prevention and treatment remain among the most current problems of medicine. The patients suffering from the diabetes mellitus a long time have various forms of pathology of a digestive tract forming a picture of a gastroenterological form of autonomous neuropathy. At a diabetic polyneuropathy widely use drugs of -lipoic acid of acid which is the universal antioxidant functioning as a cofactor in the multifermental complexes catalyzing oxidizing decarboxylation of -keto acids, and therefore playing an important role in the course of obtaining energy in aerobic conditions taking part in regeneration of other antioxidants. Sialic acids which belong to multifunctional connections, being components various the glycoproteins and glycolipids of connections are a part of mucins of a blanket of a wall of a small bowel. The composition of mucins of the protective layer of the wall of the small intestine includes sialic acids, which are multifunctional compounds that are components of glycoproteins and glycolipids. The purpose of this study was a comparative study of the effect of lipoic acid on the indicators of sialic acid metabolism of rat small intestine wall compounds in alloxan diabetes. An increase in the rate of sialic acid metabolism in the wall of the small intestine of rats with alloxan diabetes was found, which may indicate a restructuring of the metabolism of enterocytes to adapt to conditions of insulin deficiency and hyperglycemia. The introduction of lipoic acid to experimental animals did not reduce sialidase activity and the content of all fractions of sialic acids in the wall of the small intestine, although, according to the literature, it reduced the degree of development of oxidative stress in the body, including in the studied section of the gastrointestinal tract.


Author(s):  
Н.М. Геворкян ◽  
Н.В. Тишевская ◽  
А.Г. Бабаева

Введение. Как было нами показано ранее, препараты аллогенных суммарных РНК лимфоидных и стволовых клеток способствуют нормализации уровня глюкозы в крови белых беспородных крыс со стойким аллоксановым диабетом. Цель исследования - оценка влияния суммарной РНК, выделенной из селезенки крыс с аллоксановым диабетом, на уровень глюкозы в крови интактных крыс и животных, перенесших стойкий аллоксановый диабет. Методика. Эксперимент выполнен на 34 белых беспородных крысах-самках массой 250-280 г.: 12 интактных животных составили «интактный контроль». У 22 животных моделировали аллоксановый диабет путем однократного подкожного (п/к) введения полного адъюванта Фрейнда (0,5 мл) и последующего подкожного введения аллоксана тригидрата (200 мг/кг) - группа «алоксановый диабет». Селезенка 10 крыс группы «аллоксановый диабет» была использована для получения суммарной РНК. У 12 крыс группы «аллоксановый диабет» уровень глюкозы в крови был стабильно нормализован введением суммарной РНК клеток костного мозга, селезенки и поджелудочной железы - группа «перенесшая диабет». На 45-е сут эксперимента 12 крыс группы «интактный контроль» и 12 крыс группы «перенесшей диабет» использованы в новом опыте (по протоколу «2-й этап работы»). У 6 животных группы «интактный контроль» (впервые) и у 6 животных группы «перенесший диабет» (повторно) моделировали аллоксановый диабет путем подкожного введения аллоксана в дозе 100 мг/кг. Оставшимся 6-ти животным группы «интактный контроль» и 6-ти животным группы «перенесших диабет» вводили внутрибрюшинно суммарную РНК (15 мкг/100 г веса тела), выделенную из селезенок 10 крыс группы «аллоксановый диабет. Результаты. Показано, что исследуемая суммарная РНК в дозе 15 мкг/100 г массы тела вызывала гипергликемию у всех подопытных животных, сравнимую с действием 600-700-кратной дозы самого аллоксана, при этом крысы, ранее перенесшие диабет, реагировали значимо сильнее. Повторный контакт с аллоксаном у крыс, перенесших ранее диабет, так же вызывал значимо более выраженную гипергликемию, чем реакция на аллоксан у интактных крыс. Заключение. Выявлен феномен диабетогенного действия исследуемой суммарной РНК, а также повышенную чувствительность животных, ранее перенесших аллоксановый диабет, к повторному действию повреждающего агента. Полученные эффекты свидетельствуют о принципиальной возможности использовать суммарную РНК лимфоидных клеток для создания моделей заболеваний человека и разработку новых подходов в области персонифицированной медицины. Introduction. As we have shown earlier, preparations of allogenic total RNA from lymphoid and stem cells contribute to normalization of blood glucose levels in white outbred rats with persistent alloxan-induced diabetes. The aim of this study was to evaluate the effect of total RNA from the spleen of rats with alloxan diabetes on blood glucose of intact and post-alloxan diabetic animals. Method. Experiments were performed on 34 white outbred female rats weighing 250-280 g. Rats were divided into intact animals (n=12) and rats with experimental alloxan diabetes mellitus (n=22). Diabetes mellitus was modeled by a single subcutaneous (s.c.) injection of complete Freund’s adjuvant (0.5 ml) followed by a s.c. injection of alloxan trihydrate (200 mg/kg). Spleens from 10 rats with alloxan diabetes were used for obtaining total RNA. In the remaining 12 rats with alloxan diabetes, the level of blood glucose was completely normalized by administration of total RNA from the bone marrow, spleen, and pancreas (post-diabetes group). On day 45 of this experiment, 12 intact rats and 12 post-diabetes rats were used for a new experiment (second stage protocol). Alloxan diabetes was induced in 6 intact rats (for the first time) and 6 post-diabetes rats (for the second time) by a s.c injection of alloxan 100 mg/kg. The remaining 6 rats of the intact control group and 6 rats of the post-diabetes group received an injection of total RNA (15 μg/100 g body weight, i.p.). Results. Administration of total RNA (15 μg/100 g body weight) induced hyperglycemia in all experimental animals, which was comparable with the effect of a 600-700-fold dose of alloxan. Rats that had previously had diabetes responded to the total RNA significantly stronger. Likewise, a repeated exposure to alloxan of post-diabetes rats induced significantly more pronounced hyperglycemia than the response to alloxan of intact rats. Conclusions. This study discovered a phenomenon of hypersensitivity to repeated exposure to alloxan and to the diabetogenic effect of total RNA in animals that had previously had alloxan diabetes. This effect suggests a possibility of using the total RNA of lymphoid cells to create animal models of human diseases and to develop new approaches in personalized medicine.


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