Investigation of a novel brachytherapy ureteral stent: trial studies on normal beagle dogs

2021 ◽  
Author(s):  
Dechao Jiao ◽  
Yuan Yao ◽  
Kaihao Xu ◽  
Qinyu Lei ◽  
Zongming Li ◽  
...  
Keyword(s):  
Ureteral Stent ◽  
Beagle Dogs

The Clinical, Roentgenological and Morphological Effects of an Acute Exposure of Phosgene on the Lungs of Dogs

1971 ◽  
Vol 29 ◽  
pp. 236-237
Author(s):  
R. F. Bils ◽  
W. F. Diller ◽  
F. Huth
Keyword(s):  
Latent Period ◽  
Chemical Industry ◽  
Toxic Substance ◽  
Lung Edema ◽  
X Rays ◽  
Beagle Dogs ◽  
Male And Female ◽  
Morphological Alterations ◽  
Before And After ◽  
Electron Microscopes

Phosgene still plays an important role as a toxic substance in the chemical industry. Thiess (1968) recently reported observations on numerous cases of phosgene poisoning. A serious difficulty in the clinical handling of phosgene poisoning cases is a relatively long latent period, up to 12 hours, with no obvious signs of severity. At about 12 hours heavy lung edema appears suddenly, however changes can be seen in routine X-rays taken after only a few hours' exposure (Diller et al., 1969). This study was undertaken to correlate these early changes seen by the roengenologist with morphological alterations in the lungs seen in the'light and electron microscopes.Forty-two adult male and female Beagle dogs were selected for these exposure experiments. Treated animals were exposed to 94.5-107-5 ppm phosgene for 10 min. in a 15 m3 chamber. Roentgenograms were made of the thorax of each animal before and after exposure, up to 24 hrs.

Intraneuronal accumulations of lysosomes in the cerebellum of rats and dogs after dosing with MDL-832

1990 ◽  
Vol 48 (3) ◽  
pp. 830-831
Author(s):  
S.D. Barnard ◽  
S.D. Warner
Keyword(s):  
Brown Pigment ◽  
Beagle Dogs ◽  
Sprague Dawley ◽  
Gelatin Capsules ◽  
Pigment Granules ◽  
Sprague Dawley Rats ◽  
Hematoxylin And Eosin ◽  
Dose Levels

1, 2, 9, 10-tetramethoxyaporphine phosphate (MDL-832) was once considered a potential human antitussive. MDL-832 was administered orally in the diets of Sprague-Dawley rats at dose levels of 0, 5, 10, 20, 40, 80 and 160 mg/kg/day for 3 and 6 months and in gelatin capsules to Beagle dogs at 0, 5, 10, 15, 30 and 60 mg/kg/day for 3, 6 and 12 months. Histopathologic examinations of hematoxylin and eosin-stained cerebellar sections revealed intracytoplasmic brown pigment accumulations in large fusiform neurons (presumably the motor type) of the pons. The pigment granules were found to be PAS-positive, non-acid fast, iron-free, Sudan B-positive and fuchsinophilic. Intraneuronal pigment accumulations were seen in rats after 3 months of treatment at 80 mg but not at 40 mg and after 6 months at 20 mg but not at 10 mg. For dogs the effect was observed after 3 months at 60 mg but not at 30 mg and after 12 months at 10 mg but not at 5 mg.

Ultrastructural investigations of MDL 19,660-induced effects on the canine platelet and megakaryocyte

1990 ◽  
Vol 48 (3) ◽  
pp. 374-375
Author(s):  
D.E. Loudy ◽  
J. Sprinkle-Cavallo ◽  
J.T. Yarrington ◽  
F.Y. Thompson ◽  
J.P. Gibson
Keyword(s):  
Antidepressant Drug ◽  
Beagle Dogs ◽  
Long Term Effects ◽  
Short Term ◽  
Platelet Counts ◽  
Toxicological Studies ◽  
Induced Aggregation ◽  
Internal Architecture

Previous short term toxicological studies of one to two weeks duration have demonstrated that MDL 19,660 (5-(4-chlorophenyl)-2,4-dihydro-2,4-dimethyl-3Hl, 2,4-triazole-3-thione), an antidepressant drug, causes a dose-related thrombocytopenia in dogs. Platelet counts started to decline after two days of dosing with 30 mg/kg/day and continued to decrease to their lowest levels by 5-7 days. The loss in platelets was primarily of the small discoid subpopulation. In vitro studies have also indicated that MDL 19,660: does not spontaneously aggregate canine platelets and has moderate antiaggregating properties by inhibiting ADP-induced aggregation. The objectives of the present investigation of MDL 19,660 were to evaluate ultrastructurally long term effects on platelet internal architecture and changes in subpopulations of platelets and megakaryocytes.Nine male and nine female beagle dogs were divided equally into three groups and were administered orally 0, 15, or 30 mg/kg/day of MDL 19,660 for three months. Compared to a control platelet range of 353,000- 452,000/μl, a doserelated thrombocytopenia reached a maximum severity of an average of 135,000/μl for the 15 mg/kg/day dogs after two weeks and 81,000/μl for the 30 mg/kg/day dogs after one week.

52: In Vitro Evaluation of Ureteral Stent Compression

2006 ◽  
Vol 175 (4S) ◽  
pp. 18-18
Author(s):  
Kari Hendlin ◽  
Krishna Vedula ◽  
Christina Horn ◽  
Manoj Monga
Keyword(s):  
Ureteral Stent ◽  
In Vitro Evaluation

481: Uretretal Drainage Properties of a Partial Self-Degradable Self-Expanding Braided Self-Reinforced Polylactideglycolide Copolymer (SR-PLGA) Ureteral Stent

2004 ◽  
Vol 171 (4S) ◽  
pp. 128-128
Author(s):  
Martti Talja ◽  
Juha Lumiaho ◽  
Antero Heino ◽  
Tero Valimaa ◽  
Pertti Tormala
Keyword(s):  
Ureteral Stent

Percutaneous ureteral stent insertion

1990 ◽  
Vol 26 (5) ◽  
pp. 871
Author(s):  
Y Yoon ◽  
D W Sung ◽  
W S Choi ◽  
D H Lee ◽  
Y T Ko ◽  
...  
Keyword(s):  
Ureteral Stent ◽  
Stent Insertion

Study on Medicinal Chemistry of K203 in Wistar Rats and Beagle Dogs

2013 ◽  
Vol 20 (16) ◽  
pp. 2137-2144 ◽  
Author(s):  
H. Kalasz ◽  
P. Szegi ◽  
G. Janoki ◽  
L. Balogh ◽  
Z. Postenyi ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Medicinal Chemistry ◽  
Beagle Dogs

scholarly journals Cystoscopic extraction of an inadvertently placed ureteral stent in inferior vena cava

2020 ◽  
Vol 7 (4) ◽  
pp. 373-375
Author(s):  
Ambegoda Liyana Arachchige Madura Chathuranga Ambegoda ◽  
Maduwe Gedera Sagara Ruwan Kumara ◽  
Kusala Sandamalee ◽  
Anuruddha Mahasen Abeygunasekera
Keyword(s):  
Inferior Vena Cava ◽  
Inferior Vena ◽  
Vena Cava ◽  
Ureteral Stent

Evaluation of Adrenal Cortical Function in Neonatal and Weanling Laboratory Beagle Dogs

2021 ◽  
pp. 019262332110094
Author(s):  
Janet M. Petruska ◽  
Maria Adamo ◽  
Jeffrey McCartney ◽  
Ahamat Aboulmali ◽  
Thomas J. Rosol
Keyword(s):  
Adrenal Gland ◽  
Pituitary Gland ◽  
Endocrine System ◽  
Beagle Dogs ◽  
Cortical Function ◽  
Test Species ◽  
Toxicity Studies ◽  
Gland Function ◽  
Common Target ◽  
Adrenal Cortical Function

The most common target organ for toxicity in the endocrine system is the adrenal gland, and its function is dependent upon the hypothalamus and pituitary gland. Histopathologic examination of the adrenal glands and pituitary gland is routinely performed in toxicity studies. However, the function of the adrenal gland is not routinely assessed in toxicity studies. Assessment of adrenal cortical function may be necessary to determine whether a histopathologic finding in the adrenal cortex results in a functional effect in the test species. As juvenile toxicity studies are more commonly performed in support of pediatric indications for pharmaceuticals, it is important to establish historical control data for adrenal gland function. In this study, adrenal cortical function was assessed in control neonatal and weanling beagle dogs as part of an ongoing juvenile toxicology program. Measurements of serum adrenocorticotropic hormone (ACTH), cortisol prior to and following administration of exogenous ACTH, and aldosterone were conducted beginning at 2 weeks of age continuing through 26 weeks of age. Serum electrolyte concentrations were determined at 4, 13, and 26 weeks of age. Dogs as young as 2 weeks of age synthesize and secrete adrenal cortical hormones and exhibit a functional hypothalamic pituitary adrenal axis.

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