Effect of potassium oxalate on liver function and kidney tissue of dogs (beagles)

This is a notice of retraction of the article: Effect of potassium oxalate on liver function and kidney tissue of dogs (beagles), published in the Archives of Biological Sciences in 2013, Vol. 65, Issue 4. The Editor-in-Chief has been informed that this paper is a duplicate of an earlier paper: Mohamaden W, Wang H, Guan H, Meng X, Li J. Effect of potassium oxalate injection on serum and kidney tissue of beagle dogs. Life Sci J. 2013;10(2):1537-42. This claim is correct and the results have already been presented in the article published earlier. After confirmation of this fact, the Editor-in-Chief of the Archives of Biological Sciences has decided to retract the paper immediately. We apologize for this error. Link to the retracted article <a href="http://dx.doi.org/10.2298/ABS1304363M">10.2298/ABS1304363M</a>

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Freeze-Etch Crystal-Like Structures in Membranous Glomerulosclerosis

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100063883 ◽

1969 ◽

Vol 27 ◽

pp. 394-395

Author(s):

Burton B. Silver

Keyword(s):

Electron Microscopy ◽

Light Microscopy ◽

Sodium Hypochlorite ◽

Kidney Tissue ◽

Extraction Process ◽

Donor Kidney ◽

Unknown Substance ◽

Etched Surface ◽

Standard Fixation ◽

Diseased Kidney

Tissue from a non-functional kidney affected with chronic membranous glomerulosclerosis was removed at time of trnasplantation. Recipient kidney tissue and donor kidney tissue were simultaneously fixed for electron microscopy. Primary fixation was in phosphate buffered gluteraldehyde followed by infiltration in 20 and then 40% glycerol. The tissues were frozen in liquid Freon and finally in liquid nitrogen. Fracturing and replication of the etched surface was carried out in a Denton freeze-etch device. The etched surface was coated with platinum followed by carbon. These replicas were cleaned in a 50% solution of sodium hypochlorite and mounted on 400 mesh copper grids. They were examined in an Siemens Elmiskop IA. The pictures suggested that the diseased kidney had heavy deposits of an unknown substance which might account for its inoperative state at the time of surgery. Such deposits were not as apparent in light microscopy or in the standard fixation methods used for EM. This might have been due to some extraction process which removed such granular material in the dehydration steps.

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Opening images of synaptic vesicles and calcium localization by means of microwave fixation method

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100134508 ◽

1990 ◽

Vol 48 (2) ◽

pp. 182-183

Author(s):

Vinci Mizuhira ◽

Hiroshi Hasegawa

Keyword(s):

Synaptic Vesicles ◽

Room Temperature ◽

Osmium Tetroxide ◽

Sampling Procedure ◽

Fixation Method ◽

Potassium Oxalate ◽

X Ray ◽

Cacodylate Buffer ◽

Ultrathin Sections ◽

Microwave Fixation

Microwave irradiation (MWI) was applied to 0.3 to 1 cm3 blocks of rat central nervous system at 2.45 GHz/500W for about 20 sec in a fixative, at room temperature. Fixative composed of 2% paraformaldehyde, 0.5% glutaraldehyde in 0.1 M cacodylate buffer at pH 7.4, also contained 2 mM of CaCl2 , 1 mM of MgCl2, and 0.1% of tannic acid for conventional observation; and fuether 30-90 mM of potassium oxalate containing fixative was applied for the detection of calcium ion localization in cells. Tissue blocks were left in the same fixative for 30 to 180 min after MWI at room temperature, then proceeded to the sampling procedure, after postfixed with osmium tetroxide, embedded in Epon. Ultrathin sections were double stained with an useal manner. Oxalate treated sections were devided in two, stained and unstained one. The later oxalate treated unstained sections were analyzed with electron probe X-ray microanalyzer, the EDAX-PU-9800, at 40 KV accelerating voltage for 100 to 200 sec with point or selected area analyzing methods.

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A Comparison Between Sterological Point Counting and Digitizing Tablets

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100120023 ◽

1985 ◽

Vol 43 ◽

pp. 666-667

Author(s):

John M. Basgen ◽

Eileen N. Ellis ◽

S. Michael Mauer ◽

Michael W. Steffes

Keyword(s):

Electron Microscopy ◽

Kidney Tissue ◽

Volume Density ◽

Diabetic Patients ◽

Normal Kidney ◽

Point Counting ◽

Normal Kidney Tissue ◽

Biopsy Specimens ◽

Mitochondrial Volume ◽

Kidney Lesions

To determine the efficiency of methods of quantitation of the volume density of components within kidney biopsies, techniques involving a semi-automatic digitizing tablet and stereological point counting were compared.Volume density (Vv) is a parameter reflecting the volume of a component to the volume that contains the component, e.g., the fraction of cell volume that is made up of mitochondrial volume. The units of Vv are μm3 /μm3.Kidney biopsies from 15 patients were used. Five were donor biopsies performed at the time of kidney transplantation (patients 1-5, TABLE 1) and were considered normal kidney tissue. The remaining biopsies were obtained from diabetic patients with a spectrum of diabetic kidney lesions. The biopsy specimens were fixed and embedded according to routine electron microscogy protocols. Three glomeruli from each patient were selected randomly for electron microscopy. An average of 12 unbiased and systematic micrographs were obtained from each glomerulus and printed at a final magnification of x18,000.

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Acetaminophen: Macula densa hypersecretory activity by induced hepatotoxicity

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010012895x ◽

1987 ◽

Vol 45 ◽

pp. 934-935

Author(s):

S.S. Poolsawat ◽

C.A. Huerta ◽

S.TY. Lae ◽

G.A. Miranda

Keyword(s):

Cell Proliferation ◽

Liver Function ◽

Chronic Inflammation ◽

Foam Cell ◽

Term Effect ◽

Short Term ◽

Drug Induced ◽

Experimental Induction ◽

Tissue Alterations ◽

Toxic Responses

Introduction. Experimental induction of altered histology by chemical toxins is of particular importance if its outcome resembles histopathological phenomena. Hepatotoxic drugs and chemicals are agents that can be converted by the liver into various metabolites which consequently evoke toxic responses. Very often, these drugs are intentionally administered to resolve an illness unrelated to liver function. Because of hepatic detoxification, the resulting metabolites are suggested to be integrated into the macromolecular processes of liver function and cause an array of cellular and tissue alterations, such as increased cytoplasmic lysis, centrilobular and localized necroses, chronic inflammation and “foam cell” proliferation of the hepatic sinusoids (1-4).Most experimentally drug-induced toxicity studies have concentrated primarily on the hepatic response, frequently overlooking other physiological phenomena which are directly related to liver function. Categorically, many studies have been short-term effect investigations which seldom have followed up the complications to other tissues and organs when the liver has failed to function normally.

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Electron microscopic study of the membrane glycoproteins in the rat kidney after cisplatin treatment

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100156547 ◽

1989 ◽

Vol 47 ◽

pp. 912-913

Author(s):

S.K. Aggarwal

Keyword(s):

Alkaline Phosphatase ◽

Rat Kidney ◽

Light And Electron Microscopy ◽

Kidney Tissue ◽

Membrane Glycoproteins ◽

Electron Microscopic ◽

Before And After ◽

Interstrand Cross Links ◽

Cross Links

The proposed primary mechanism of action of the anticancer drug cisplatin (Cis-DDP) is through its interaction with DNA, mostly through DNA intrastrand cross-links or DNA interstrand cross-links. DNA repair mechanisms can circumvent this arrest thus permitting replication and transcription to proceed. Various membrane transport enzymes have also been demonstrated to be effected by cisplatin. Glycoprotein alkaline phosphatase was looked at in the proximal tubule cells before and after cisplatin both in vivo and in vitro for its inactivation or its removal from the membrane using light and electron microscopy.Outbred male Swiss Webster (Crl: (WI) BR) rats weighing 150-250g were given ip injections of cisplatin (7mg/kg). Animals were killed on day 3 and day 5. Thick slices (20-50.um) of kidney tissue from treated and untreated animals were fixed in 1% buffered glutaraldehyde and 1% formaldehyde (0.05 M cacodylate buffer, pH 7.3) for 30 min at 4°C. Alkaline phosphatase activity and carbohydrates were demonstrated according to methods described earlier.

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Localization of cell-surface and basement-membrane heparan-sulfate proteoglycans using the malaria circumsporozoite protein

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100169201 ◽

1994 ◽

Vol 52 ◽

pp. 294-295

Author(s):

U. Frevert ◽

S. Sinnis ◽

C. Cerami ◽

V. Nussenzweig

Keyword(s):

Heparan Sulfate ◽

Protein A ◽

Kidney Tissue ◽

Plasmodium Species ◽

Its Region ◽

Basement Membranes ◽

Heparan Sulfate Proteoglycans ◽

Infected Mosquito ◽

Complement Components ◽

Region Ii

Malaria sporozoites, which invade hepatocytes within minutes after transmission by an infected mosquito, are covered with the circumsporozoite (CS) protein, which in all Plasmodium species contains the conserved region II-plus. This region is also found as a cell-adhesive motif in a variety of host proteins like thrombospondin, properdin and the terminal complement components.The CS protein with its region II-plus specifically binds to heparan sulfate proteoglycans (HSPG) on the basolateral surface of hepatocytes in the space of Disse (FIG. 1), to certain basolateral cell membranes and basement membranes of the kidney (FIG. 2) as well as to heparin in the granules of connective tissue mast cells. The distribution of the HSPG receptors for the CS protein was examined by incubation of Lowicryl K4M or LR White sections of liver and kidney tissue with the recombinant CS ligand, whose binding sites were detected with a monoclonal anti-CS antibody and protein A gold.

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