scholarly journals Impact of cypermethrin on blood profile, tissue redox parameters and the observation of histopathological changes in the liver of Rabbit (Oryctolagus cuniculus)

2022 ◽  
Vol 11 (2) ◽  
Author(s):  
Farzeen Saeed
Keyword(s):  
Oryctolagus Cuniculus ◽  
Histopathological Changes ◽  
Blood Profile

Fine structure of early degenerating myofibers in the tibialis anterior of young ‘MDX’ mouse

1988 ◽  
Vol 46 ◽  
pp. 322-323
Author(s):  
H.D. Geissinger ◽  
C.K. McDonald-Taylor
Keyword(s):  
Fine Structure ◽  
Muscle Regeneration ◽  
Tibialis Anterior ◽  
Genetic Defect ◽  
Mdx Mouse ◽  
Mdx Mice ◽  
Histopathological Changes ◽  
Electron Microscopic ◽  
Dystrophic Mouse ◽  
Preliminary Study

A new strain of mice, which had arisen by mutation from a dystrophic mouse colony was designated ‘mdx’, because the genetic defect, which manifests itself in brief periods of muscle destruction followed by episodes of muscle regeneration appears to be X-linked. Further studies of histopathological changes in muscle from ‘mdx’ mice at the light microscopic or electron microscopic levels have been published, but only one preliminary study has been on the tibialis anterior (TA) of ‘mdx’ mice less than four weeks old. Lesions in the ‘mdx’ mice vary between different muscles, and centronucleation of fibers in all muscles studied so far appears to be especially prominent in older mice. Lesions in young ‘mdx’ mice have not been studied extensively, and the results appear to be at variance with one another. The degenerative and regenerative aspects of the lesions in the TA of 23 to 26-day-old ‘mdx’ mice appear to vary quantitatively.

The Fine Structure of Irradiated Mouse Heart

1976 ◽  
Vol 34 ◽  
pp. 184-185
Author(s):  
Vivian V. Yang ◽  
S. Phyllis Stearner
Keyword(s):  
Microscopic Level ◽  
Ultrastructural Changes ◽  
Mouse Heart ◽  
Blood Vessel Wall ◽  
Histopathological Changes ◽  
Light Microscopic Level ◽  
Γ Rays ◽  
Fission Neutrons ◽  
Total Body

The heart is generally considered a radioresistant organ, and has received relatively little study after total-body irradiation with doses below the acutely lethal range. Some late damage in the irradiated heart has been described at the light microscopic level. However, since the dimensions of many important structures of the blood vessel wall are submicroscopic, investigators have turned to the electron microscope for adequate visualization of histopathological changes. Our studies are designed to evaluate ultrastructural changes in the mouse heart, particularly in the capillaries and muscle fibers, for 18 months after total-body exposure, and to compare the effects of 240 rad fission neutrons and 788 rad 60Co γ-rays.Three animals from each irradiated group and three control mice were sacrificed by ether inhalation at 4 days, and at 1, 3, 6, 12, and 18 months after irradiation. The thorax was opened and the heart was fixed briefly in situwith Karnofsky's fixative.

Pro-oxidant effects of a high α-tocopherol dose on kidney antioxidant biomarkers and histopathological aspects

2017 ◽  
Vol 87 (3-4) ◽  
pp. 179-190
Author(s):  
Amel Kanane ◽  
Fayrouz Rouaki ◽  
Mohamed Brahim Errahmani ◽  
Abdenour Laraba ◽  
Hayet Mesbah ◽  
...  
Keyword(s):  
Sunflower Oil ◽  
Antioxidant Status ◽  
Basal Diet ◽  
Inflammatory Cells ◽  
Significant Rise ◽  
Control Group ◽  
Histopathological Changes ◽  
Group 5 ◽  
Oxidant Effect ◽  
Higher Doses

Abstract. The aim of this study is to evaluate the effect of α-tocopherol supplementation at two doses (600 and 1200 mg × kg–1) on kidney antioxidant status and the histopathological changes in Wistar rats after 12 weeks of exposure at different diets. Forty rats has been divided into 4 groups of 10 rats each, the control group received basal diet with 5 % fresh sunflower oil (FSO), the second group: 5 % oxidized sunflower oil (OSO), the third group: 5 % OSO supplemented with 600 mg × kg–1 α-tocopherol and the fourth group: 5 % OSO supplemented with 1200 mg × kg–1 α-tocopherol. In OSO groups, the results showed highly significant increases of LPO (from 31.3 ± 0.9 to 53.8 ± 1.2 nmol of MDA formed/min/mg protein, p < 0.0001) with a significant decrease (p < = 0.001) of the antioxidant enzymatic activities (CAT, SOD, GPX, GR and G6PDH), body weight (339 ± 9 to 290 ± 3 g) and α-tocopherol levels (13.6 ± 0.6 to 6.5 ± 0.4 μg/mg protein). In OSO groups with 600 mg × kg–1 α-tocopherol, an antioxidant effect was found, reflected by a return of the parameters to values similar to those of the control group. However, higher doses of α-tocopherol (1200 mg × kg–1) induced a depletion of antioxidant status, α-tocopherol levels (6.0 ± 0.3 μg/mg protein, p < 0.001) and a very highly significant rise (p < 0.0001) of LPO content (54.86 ± 0.01 nmol of MDA formed/min/mg protein). The kidney tissues also showed changes in glomerular, severe inflammatory cells infiltration, and formation of novel vessels. So, we can conclude that the oxidative stress is attenuated by a moderate administration of 600 mg × kg–1 α-tocopherol, while a pro-oxidant effect occurs at 1200 mg × kg–1 α-tocopherol.

Peripheres keratinisierendes Ameloblastom bei einem Zwergkaninchen (Oryctolagus cuniculus f. dom.)

2014 ◽  
Vol 42 (05) ◽  
pp. 331-335 ◽  
Author(s):  
I. Völker ◽  
P. Kammeyer ◽  
B. Hinzmann ◽  
D. Lüerssen ◽  
W. Baumgärtner ◽  
...  
Keyword(s):  
Oryctolagus Cuniculus ◽  
Odontogene Tumoren

ZusammenfassungEin 3,5 Jahre altes, männlich-kastriertes Zwergkaninchen wurde mit einer vorberichtlich schnell wachsenden Umfangsvermehrung in der Gingiva des Oberkiefers vorgestellt. Die Neubildung wurde vollständig chirurgisch exzidiert. Histopathologisch ließ sich ein expansiv wachsendes, multilobuläres, teils zystisches, peripheres keratinisierendes Ameloblastom nachweisen. Die immunhistologische Phänotypisierung der Tumorzellen ergab eine zytoplasmatische Markierung mit verschiedenen Panzytokeratin-Antikörpern. Graduell variabel wurden die Zytokeratine 5/6, 7, 10 und 14 exprimiert. Zytokeratin 20 war nicht nachweisbar. Vimentin wurde im Zytoplasma von mesenchymalen Zellen des Stromas exprimiert. Außerdem wurde im Kern von ca. 10% der Tumorzellen das Protein des Tumorsuppressorgens p53 und in ca. 5% der Proliferationsmarker Ki67 festgestellt. Odontogene Tumoren sollten bei Kaninchen mit Umfangsvermehrungen am Kiefer differenzialdiagnostisch berücksichtigt werden.

A Computerized Coding System for Processing Basic Histopathological Changes – Application to Vascular Pathology

1986 ◽  
Vol 25 (03) ◽  
pp. 139-142 ◽  
Author(s):  
A. Mauriello ◽  
Y. Sambuy ◽  
E. Bonanno ◽  
A. Orlandi ◽  
G. Palmieri ◽  
...  
Keyword(s):  
Vascular Wall ◽  
Final Diagnosis ◽  
Vascular Pathology ◽  
Histopathological Study ◽  
Coding System ◽  
Histopathological Changes ◽  
Histological Changes ◽  
Pathological Conditions ◽  
Computer Based ◽  
Sufficient Space

SummaryAmong the numerous existing computer-based systems for processing pathological data, none contains sufficient space for encoding data on the basic cytological or histological changes of a certain organ or tissue, upon which the final diagnosis is based.An “analytical record” was constructed listing all the basic changes that can be encountered in the various pathological conditions of the vascular wall. The data collected on the “analytical record” were coded by means of an alphanumeric code and stored in an Apple II 48 K minicomputer.The advantages of this system include the computerization of the data by non-specialized personnel and the possibility to’ quantitatively analyze the histocytopathological parameters used for diagnosis in vascular pathology. This coding system may easily be adapted, with minor modifications, to the histopathological study of other organs and tissues.

TO FIND OUT ELECTRO-CARDIOGRAPHIC CHANGES & ECHO CHANGES IN ALUMINIUM PHOSPHIDE AND ETHYLENE DIBROMIDE POISONING

2020 ◽  
Vol 4 (10) ◽  
Author(s):  
Hemant Nargawe ◽  
Sumeet Sisodiya
Keyword(s):  
Biochemical Analysis ◽  
Histopathological Examination ◽  
Common Finding ◽  
Histopathological Changes ◽  
Ethylene Dibromide ◽  
Medical College ◽  
Aluminium Phosphide ◽  
Urine Examination ◽  
Cardiovascular Involvement ◽  
Careful Clinical Examination

Background & Method: The study was conducted in the Department of Medicine Shyam Shah Medical College and Associated Sanjay Gandhi Memorial Hospital, Rewa (M.P). History was followed by a careful clinical examination i.e. cardiovascular, respiratory and gastrointestinal and nervous system. Investigations had done included routine haematological examination, Biochemical analysis, urine examination, ECG, 2 D. Echo & Histopathological examination was done. Result: ST-T changes were most common finding in Aluminium phosphide poisoning in relation to mortality. However hyperkalemia was the most ominous finding associated with 100% mortality, ECG finding in EDB was normal ECG. The most ominous finding was arrhythmia which was associated with 100% mortality. Survivors of ethylene dibromide poisoning echocardiography was normal in 11 (84.61%) followed by pericardial effusion in 2 (15.38%) patients. Conclusion: Noteworthy finding was absence of correlation between cardiovascular involvement, histopathological changes and ECG findings. It was seen that even if ECG showed normal pattern there were significant histopathological changes in heart. Keywords: electro-cardiographic, Aluminium phosphide, ethylene dibromide & poisoning.

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