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Thursday, July 9, 2020 | History

2 edition of source of liver glycogen in rats studies with the aid of deuterium found in the catalog.

source of liver glycogen in rats studies with the aid of deuterium

Leon C. Terriere

source of liver glycogen in rats studies with the aid of deuterium

by Leon C. Terriere

  • 237 Want to read
  • 5 Currently reading

Published .
Written in English

    Subjects:
  • Glycogen.,
  • Liver -- Glycogenic function.

  • Edition Notes

    Statementby Leon C. Terriere.
    The Physical Object
    Pagination79 leaves, bound :
    Number of Pages79
    ID Numbers
    Open LibraryOL14314881M

    She had a liver glycogen content of 9% (normal liver phosphorylase activity of 19 and 25% of a control sample on two independent assays. Other patients were determined to be affected by clinical examination, consistent laboratory studies and relationship to the . Type I glycogen storage disease (GSD I), also known as von Gierke’s disease, is the most common form of glycogen storage disease, accounting for 25% of all cases. It is an inherited disorder that affects the metabolism – the way the body breaks food down into energy.

      Because of a critical shortage in suitable organs, many patients with terminal liver disease die each year before liver transplantation can be performed. Transplantation of isolated hepatocytes has been proposed for the temporary metabolic support of patients awaiting liver transplantation or spontaneous reversion of their liver disease. A major limitation of this form of . GSD Type 0 (Liver Glycogen Synthase Deficiency) Although liver glycogen synthase deficiency (GSD 0) does not involve glycogen storage, it is often included in discussions of GSD. Case reports are few, but the clinical picture is of symptomatic hypoglycemia and ketosis in the fasting state, usually without hepatomegaly (). Patients.

      Overview of liver development. The endoderm germ layer is established during gastrulation and forms a primitive gut tube that is subdivided into foregut, midgut and hindgut regions (see Fig. 2).Fate mapping studies in the mouse embryo at embryonic day of gestation (e) indicate that the embryonic liver originates from the ventral foregut endoderm (Tremblay and Zaret, ). glycogen from the liver. Air -dry the glycogen in the tube and weigh it. Experiment 2:Enzymatic hydrolysis of glycogen and determination of glucose. Results Glycogen content (g) = centrifuge tube that contain pellet - empty Centrifuge tube •Record total yield and glycogen content per g liver.


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Source of liver glycogen in rats studies with the aid of deuterium by Leon C. Terriere Download PDF EPUB FB2

Physiol. (I) I23, 5I THE EFFECT OF DIET ON GLYCOGEN FORMATION IN RAT LIVER BYMARGARETKERLYANDJ. OTTAWAY Fromthe Department ofBiochemistry, University College, London (Received 10 August ) Thereis someevidence (e.g.

Cited by: 8. In the isolated perfused liver from 48h-starved rats, glycogen synthesis was followed by sequential sampling of the two major lobes.

The fastest observed rates of glycogen deposition (–μmol of glucose/min per g fresh liver) were obtained in the left lateral lobe, when glucose in the medium was 25–30m m and when gluconeogenic. Likewise, if there is a treatment-related glycogen depletion (as in Figure 4 vs.

Figure Figure 3), glycogen depletion should be diagnosed in the treated animals and given a severity grade. In the context of a toxicity study, some treated animals may have a depressed appetite and will have decreased amounts of glycogen in the liver, in contrast.

of glycogen and water in the liver and muscle of rats 8 to 11 days old, 10 to 12 weeks old, and 2 to 3 years old.

The results are shown in Fig. It can be seen that the content of glycogen in the liver decreases under the influence of fasting at an equal rate in animals of all. We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.

We have previously found that during exercise net muscle glycogen breakdown is impaired in adrenodemedullated rats, as compared with controls. The present study was carried out to elucidate whether, in rats with deficiencies of the sympatho-adrenal system, diminished exercise-induced glycogenolysis in skeletal muscle was accompanied by increased breakdown of triglyceride and/or.

of glycogen obtained from liver and muscle by boiling with 30 per cent KOH and by homogenizing with 10 per cent TCA. These authors found that the amounts of TCA-extractable glycogen in the livers of fed rats, rats fasted for 12 hours, and rats fasted for 24 hours were, and.

Glycogen: Glycogen content. Treatment: A numeric treatment group indicator (1, 2, 3). Rat: Rat identification number. The numbers are not unique; each treatment has a rat numbered 1 and 2, but these not the same rats (rats are nested under treatment). Liver: A numeric variable indicating the liver piece.

Each liver was divided into three pieces. In MR images, there was a small but significantly lower liver signal‐to‐noise ratio in normal rats compared to fasting rats in T1‐weighted and proton density‐weighted images. Glycogen analyses showed depleted glycogen deposits in fasting rats and a mean glycogen content of mg glucose equivalent/g liver tissue in normal rats.

Comparative liver macroanatomy •Human – Lobes: Right, left, caudate, quadrate – Majority of liver on R side cranial abdomen – Subdivided into 9 discrete units based on vasculoductular supply - important in surgery • Rodent – Lobes: Right, left, median, caudate – More evenly spaced across cranial abdomen – Rats lack gallbladder.

glycogenesis-activated rat liver could adsorb muchmore iodine than that in the steady state.1} Schlamowitz reported that absorption spectra of iodine-glycogen complexes and the number of reducing ends of rat liver glycogen reflected the carbohydrate source fed to the rats.2) Their studies.

Liver and heart from a substrain of the NZR/Gd rat in which there is an inherited deficiency of liver phosphorylaseb kinase was examined by light and electron microscopy and compared to material from a related, but normal substrain.

Hepatic tissue differed markedly from that of control animals. Hepatocytes contained more than twice as much free glycogen and visible lipid. The liver supplies sugar or glucose by turning glycogen into glucose in a process called glycogenolysis.

The liver also can manufacture necessary sugar or glucose by harvesting amino acids, waste products and fat byproducts. This process is called gluconeogenesis. The liver also makes another fuel, ketones, when sugar is in short supply. The source of liver glycogen in rats studies with the aid of deuterium Public Deposited.

Analytics × Add. Glycogen changes were investigated by light and electron microscopy in the liver cells of newborn rats following isoprenaline (IPR) treatment either for 1 day (2 intraperitoneal injections at 12 h interval), or for 8 days (2 intraperitoneal injections daily).

On the day following the interruption of both treatments glycogen depletion was observed as compared to control rats, as evaluated by. The high liver glycogen level in diabetic rats may be due to either increase in gluconeogenesis or hyperglycemia due to 16 hr fasting before testing.

In Tinospora Cordifolia whole plant extract treated group the significant (Pliver glycogen towards the normal may be due to it’s activating effect on the glucokinase and. Rats from an inbred strain (NZR/Mh) were found to have high concentrations of glycogen in their livers, even after 24 h of starvation.

Despite this, blood glucose concentrations were well maintained on starvation for up to 72 h. The primary defect is a deficiency of liver phosphorylase kinase, causing a lack of active glycogen phosphorylase, although total phosphorylase is normal.

The. The liver manages a dizzying array of tasks, including digesting fats, making and storing glucose, and serving as the body's detox center. A malfunctioning liver may lead to the development of type 2 diabetes or worsen high blood glucose levels for those who already have the disease.

Doctors know a lot about how the liver works, but not everything. Glycogen is the stored form of glucose and serves as a buffer for glucose needs. Glycogen is formed in periods of dietary carbohydrate loading and broken down when glucose demand is high or dietary availability is low.

Glycogen is most abundant in liver and muscle, which are most affected by disorders of glycogen metabolism. Male rats fasted 24 h were given glucose doses of g/kg by oral gavage (n > or = 8). Liver synthase R+I, total synthase, phosphorylase a, glucose, glycogen, glucoseP, and UDP glucose were measured at intervals over min after gavage.

Even the smallest glucose load elicited rapid glycogen synthesis. Liver, Hepatocyte – Glycogen accumulation Liver, Hepatocyte – Glycogen depletion. Comment: Because rodents typically feed at night, the degree of glycogen accumulation within hepatocytes is typically highest in the early morning hours and wanes throughout the day.

It also typically involves all hepatocytes in each lobule (Figure 1, Figure 2. Definition of syndrome from metabolic and enzyme studies on a 9-year-old girl. Arch Dis Child ; Aynsley-Green A, Williamson DH, Gitzelmann R.

Asymptomatic hepatic glycogen synthetase deficiency (Letter). Lancet ; I Gitzelmann R, Spycher MA, Feil G, et al. Liver glycogen synthase deficiency: a rarely diagnosed entity.Adenoviral PTG overexpression in the liver of normal rats increases glycogen and improves glucose tolerance without perturbing lipid metabolism (8).

In a diabetic-focused approach, Yang and Newgard (9) showed that adenoviral expression of PTG in the liver of STZ-diabetic rats increased glycogen content and reversed hyperglyce-mia and hyperphagia.