scholarly journals EFFECTS OF LONG TERM ADMINISTRATION OF GENTAMICIN ON CLINICO-PATHOLOGICAL PARAMETERS IN SWISS ALBINO MICE

2012 ◽  
Vol 3 (1) ◽  
pp. 87-91 ◽  
Author(s):  
MAQ Miah ◽  
MA Awal ◽  
MM Rahman ◽  
MS Islam
Keyword(s):  
Clinical Signs ◽  
The Body ◽  
Recommended Dose ◽  
Coagulation Necrosis ◽  
Histopathological Study ◽  
Swiss Albino Mice ◽  
Term Administration ◽  
Albino Mice ◽  
Kg Medium

The effects of long-term intramuscular injection of gentamicin (Gentin® inj., Opsonin, Bangladesh Ltd.) were studied clinicopathologically on twenty 60 day-old Swiss Albino mice of either sex for 42 days during January to March 2002. All the mice were grouped into four, each consisting of one male and four female mice, of which one group (group A) served as control without giving any treatment while groups B, C and D received recommended (50 mg / kg), medium (75 mg / kg) and double the recommended (100 mg / kg) doses of gentamicin intramuscularly daily for 42 days. All the treated mice produced mild to severe clinical signs, i.e., roughness of the body coat, dullness, depression, anorexia and weakness. At recommended and medium doses the offspring were apparently normal but at double the recommended dose, 10% offspring were died and others were weak and emaciated. No significant gross change was found in lungs, spleen and heart of all the treated groups but the kidney was found soft, flabby and enlarged and the heart was found darker, congested with necrotic foci on the surface. Histopathological changes showed chronic interstitial nephritis in groups B and C following recommended (50 mg / kg) and medium (75 mg / kg) doses while severe glomerulonephritis was observed following double the recommended dose (100 mg / kg) of gentamicin. In liver, histopathological study showed coagulation necrosis following recommended dose, whereas, karyorrhoexis and tissue regeneration were found following medium and double the recommended doses. In lungs, haemorrhage and thickening of interstitial tissues were observed following double the recommended dose of gentamicin in mice. Thus long term administration of higher dose of gentamicin is detrimental to the vital organs.

STUDIES IN THE SUPPOSED GOITROGENOUS EFFECT OF TAP WATER IN HELSINKI

1960 ◽  
Vol XXXIII (IV) ◽  
pp. 630-636
Author(s):  
F.-E. Krusius ◽  
P. Peltola
Keyword(s):  
Tap Water ◽  
Physiological Saline ◽  
Normal Weight ◽  
The Body ◽  
Iodine Uptake ◽  
Redistilled Water ◽  
Detectable Difference ◽  
Term Administration ◽  
Long Term Experiment

ABSTRACT The study reported here was performed in order to examine the tap water of Helsinki for its alleged goitrogenous effect. In a short-term, 24-hour experiment with rats, kept on an iodine-poor diet, we noticed no inhibition of the 4-hour 131I uptake, as compared with that of animals receiving physiological saline instead of tap water. Two similar groups of rats receiving 1 and 2 mg of mercazole in redistilled water showed a distinct blockage of the 4-hour uptake, which proved the effect of this substance. In a long-term experiment of 5 weeks' duration there was no detectable difference in the body weight, thyroid weight and the 4-hour 131I uptake when the rats receiving tap water or distilled water to which 0.45 per cent of sodium chloride was added were compared with each other. Replacement of tap water by a 10 mg per cent solution of mercazole in redistilled water enlarged the thyroid to double its normal weight and increased the 131I uptake to approximately five times that of the controls. Thus our experiments failed to demonstrate any goitrogenous effect in the tap water of Helsinki. Changes similar to those produced by a long-term administration of mercazole, i. e. an enlargement of the thyroid and an increased thyroidal iodine uptake, have been shown to be due to milk collected from goitrous areas. The observations here reported confirm the importance of milk in the genesis of the goitre endemia of Helsinki. Attention is further called to the fact that a thyroidal enlargement combined with an increased thyroidal iodine uptake cannot always be taken as a sign of iodine deficiency because similar changes may be produced by the administration of goitrogens.

Effect of exercise duration on feed intake and body composition of Swiss albino mice

1985 ◽  
Vol 58 (2) ◽  
pp. 500-505 ◽  
Author(s):  
R. Bulbulian ◽  
K. K. Grunewald ◽  
R. R. Haack
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Protein Content ◽  
Feed Intake ◽  
Exercise Duration ◽  
The Body ◽  
Control Group ◽  
Swiss Albino Mice ◽  
Daily Exercise ◽  
Albino Mice

The purpose of this study was to examine the effects of daily exercise of varying duration on the body composition, weight, and feed intake of mature Swiss albino mice. Fifty-four male mice were equally divided into a control group and five exercise groups (n = 9) performing 20, 40, 60, 120, and 240 min of daily exercise on a treadmill (7.2 m/min). Feed intake and body weight were measured weekly for 10 wk. At the completion of the study the mice were killed and the animal carcasses were chemically analyzed for fat, dry matter, and protein content. The results of this study demonstrate no differences in the body weight among groups (P less than 0.97) with all groups gaining 4.5–5.8 g during the 10-wk period. However, fat content decreased significantly from 15.7% in the control to 12.0% in the 120- and 240-min exercise groups (P less than 0.05). In contrast, protein content showed an insignificant rising trend from 13.0 to 14.6% with increasing duration of exercise. Feed intake showed a nonsignificant drop during the 20-min exercise treatment and remained unchanged among groups. These data show a slight but variable appetite-suppressing effect of light exercise in mice accompanied by favorable body composition changes even in the absence of differences in body weight. These findings suggest the mouse to be an acceptable experimental model for body composition and exercise studies.

scholarly journals Vitamin-C Treated Haematology Assessment of Swiss Albino Mice (Mus musculus)

2020 ◽  
Vol 11 (2) ◽  
pp. 9044-9050
Keyword(s):  
Vitamin C ◽  
Blood Cell ◽  
Cell Count ◽  
Hematological Parameters ◽  
Hemoglobin Concentration ◽  
The Body ◽  
Blood Cell Count ◽  
Swiss Albino Mice ◽  
Positive Effects ◽  
Albino Mice

Vitamin C is an essential dietary supplement that plays a vital role in battling health conditions. The antioxidant has positive effects on the functioning of the body. The purpose of this study is to investigate the outcome of varying concentrations of Vitamin C on the hematological parameters of Swiss Albino mice. Four albino mice were separated and accommodated in similar caging conditions. Three of them were orally administered with 250mg/kg, 500mg/kg, and 1000mg/kg Vitamin C powder, along with their diet. The fourth one was kept as control, in order to provide a standard value for future comparison. After 30 days of administration of the Vitamin C, the red blood cell count, the white blood cell count, the hemoglobin concentration, the platelet cell count, and the packed cell volume of the blood samples were tested.

scholarly journals GENERALIZED ARGINIA

2018 ◽  
Vol 21 (2) ◽  
pp. 101-105
Author(s):  
Alexander B. Krivosheev ◽  
L. A Khvan ◽  
D. N Bobokhidze ◽  
I. A Krivosheeva ◽  
D. V Morozov ◽  
...  
Keyword(s):  
Food Supplement ◽  
The Body ◽  
Review Of Literature ◽  
Internal Organs ◽  
Skin Hyperpigmentation ◽  
Comprehensive Examination ◽  
Term Administration ◽  
Inflammatory Drugs ◽  
The Moment

A brief review of literature on the problem of argyria is presented. Hyperpigmentation of the skin in 10-20% of cases has an iatrogenic cause. Hyperpigmentation of the skin can form on the background of taking non-steroidal anti-inflammatory drugs, amiodarone, cytostatics, antimalarials, etc. Systemic deposition of silver in various organs and tissues is known as generalized argyria. The disease is caused by the prolonged use of compounds containing silver (lapis pencil, silver nitrate, etc.). Clinically, generalized arginia is characterized by the gradual appearance of ashy-bluish coloration of the skin of open areas of the body (face, neck) and nail plates of the phalanges of the hands. The period from the moment of the beginning of reception of preparations of silver and before occurrence of the first dermatological changes varies on the average from 1 year to 5 years. Generalized argiria is a rare disease. This is due to the limited use of silver drugs in clinical practice, as well as the improvement of technological processes in pharmacological production. The patient’s own observation with generalized arginia formed against the background of the long-term administration of the drug Argovit-S, whose silver content is 0.75-0.85 mg/ml, is analyzed. The patient took the drug alone as a food supplement for 25 years. The diagnosis of generalized arginia is verified clinically, but is confirmed necessarily in the course of histological examination. It is shown that argyria is not only the iatrogenic cause of skin hyperpigmentation, but a serious risk factor for the manifestation and progression of liver cirrhosis. Patients with generalized arginia should undergo a comprehensive examination in order to verify the serious pathology of internal organs.

scholarly journals Pathological Study of Bacterial Infection that Causes Liver Lesions in Chickens

2019 ◽  
pp. 1-6
Author(s):  
Md. Mahbubul Alam Sarker ◽  
Shaziea Rahman ◽  
Md. Saroat Hossain ◽  
Mamunur Rashid Sarkar ◽  
Sm. Ahasanul Hamid
Keyword(s):  
Broiler Chickens ◽  
Clinical Signs ◽  
Disease Diagnosis ◽  
The Body ◽  
Coagulation Necrosis ◽  
Liver Lesions ◽  
Bacterial Diseases ◽  
Poultry Disease ◽  
Histomorphological Changes ◽  
Layer Chickens

In Bangladesh, poultry disease diagnosis almost entirely depends upon the post mortem examination. The present study was conducted to determine the prevalence of bacterial diseases and liver lesions in chickens based on gross and microscopic lesions. The study was conducted to 377 liver samples collected from chickens from July to December 2017 in the Rajshahi district, Bangladesh. During the collection of samples, clinical signs and gross changes were recorded very carefully. Histomorphological changes were investigated under a light microscope and the lesions were characterized. In this study, the overall prevalence of bacterial diseases was recorded as 14.05% whereas layer chickens (9.54%) and broiler chickens (4.50%). During the study, the prevalence of Salmonellosis was found 8.22% whereas 11.66% in layer chickens and 3.25% in broiler chickens. On the other hand, the prevalence of Colibacillosis was identified 5.83% in chickens in which 3.18% were broiler chickens and 2.65% were layer chickens. In the case of Salmonellosis, grossly livers were friable, congested, enlarged, bronze discoloration with white focal necrosis, egg follicles were congested and hemorrhagic with stalk formation; microscopically livers formed multifocal nodules with coagulation necrosis. Birds with Colibacillosis grossly showed fluid accumulation in the peritoneal cavity of chicks, dark-colored swollen liver and spleen, and perihepatitis. The fatty liver hemorrhagic syndrome showed clotted blood on the liver, congested, enlarged and friable liver, paleness of the body and excess abdominal fat. From the present study, it was evident that considerable numbers of liver lesions were observed in chicken and a systematic study of liver lesions is helpful in making a diagnosis of various poultry diseases.

EFFECTS OF LONG TERM ADMINISTRATION OF GLUCAGON ON THE PANCREATIC ISLET TISSUE OF RATS AND GUINEA-PIGS

1963 ◽  
Vol 44 (1) ◽  
pp. 139-149 ◽  
Author(s):  
Birger Petersson ◽  
Bo Hellman
Keyword(s):  
Guinea Pigs ◽  
Cell Number ◽  
Dark Field ◽  
The Body ◽  
Initial Increase ◽  
Adult Age ◽  
Number Ratio ◽  
Islet Volume ◽  
Term Administration

ABSTRACT Rats and guinea-pigs were injected every eight hours with crystalline glucagon (0.3–0.6 mg/kg) and killed after different periods of treatment up to 30 days. Immature animals (glucagon treatment commenced on the second postnatal day) were also included among the rats investigated. While the immature glucagon treated rats grew almost as well as their litter mate controls, there was a marked reduction of the body and adrenal weights, when the injections were started at a more adult age. In the latter rats the total islet volume was significantly reduced and the A1/A2 cell number ratio increased from 0.24 ± 0.02 to 0.32 ± 0.02. In the guinea-pigs the glucagon treatment resulted in a considerable decrease in both the body and pancreatic weights. These changes were associated with a significant increase in the relative amount of the endocrine pancreas, the total islet volume being unchanged. While the A1 cells appeared unaffected by the glucagon treatment, the A2 cells were markedly atrophied. After an apparent initial increase there was a subsequent progressive diminution of the silvery-white dark field granulation of the A2 cells during the glucagon treatment. The postcoupled benzylidene reaction for tryptophane also decreased and became insignificant in guineapigs injected with glucagon for a long period. In the latter animals the percentage of A2 cells was only 3.4 ± 0.2 as compared with 24.4 ± 1.3 for the controls. As a consequence of this, the A1/A2 cell number ratio was about 6 times as high in the glucagon treated guinea-pigs. The data obtained for the longer term adaptation of the islets of Langerhans to the administration of glucagon support the concept that this hormone is secreted by the silver-negative A2 cells.

scholarly journals Evaluation of γ-oryzanol Accumulation and Lipid Metabolism in the Body of Mice Following Long-Term Administration of γ-oryzanol

Nutrients ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 104 ◽  
Author(s):  
Eri Kobayashi ◽  
Junya Ito ◽  
Naoki Shimizu ◽  
Takumi Kokumai ◽  
Shunji Kato ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
Plasma Lipids ◽  
Rice Bran Oil ◽  
The Body ◽  
Biologically Active ◽  
Lipid Lowering ◽  
Single Oral Administration ◽  
Term Administration

γ-Oryzanol (OZ), abundant in rice bran oil, has gained attention due to its physiological activities (e.g., lipid-lowering effects). However, the absorption and metabolism of orally ingested OZ have not yet been fully elucidated. In this study, diets containing normal or high contents of OZ were fed to obesity model mice for 8 weeks, and OZ concentrations in plasma and organs were analyzed by HPLC-MS/MS. To evaluate the relationship between OZ accumulation and lipid metabolism in vivo, lipid concentrations in the mice plasma and liver were also measured. As a result, the accumulation of intact OZ in plasma and organs was seen in mice fed diets containing OZ, where mice fed diets containing higher OZ contents demonstrated higher levels of OZ accumulation and lower amounts of plasma lipids. These results, in combination with our additional data from a single oral administration test, suggest the possibility that intact OZ, along with its metabolites (e.g., ferulic acid), is biologically-active.

scholarly journals Dose-dependent response to infection with Ebola virus in the ferret model and evidence of viral evolution in the eye.

2021 ◽  
Author(s):  
Robert J. Watson ◽  
Julia Tree ◽  
Susan A. Fotheringham ◽  
Yper Hall ◽  
Xiaofeng Dong ◽  
...  
Keyword(s):  
Large Scale ◽  
Ebola Virus ◽  
Virus Disease ◽  
Viral Evolution ◽  
Clinical Signs ◽  
Disease Outbreaks ◽  
The Body ◽  
Medical Interventions ◽  
Persistent Virus

Filoviruses are high consequence infections with limited approved medical countermeasures (MCMs). MCM development is dependent upon well-characterised animal models for the assessment of anti-viral agents and vaccines. Following large scale Ebola virus disease outbreaks in Africa, some survivors are left with long-term sequelae and persistent virus in immune-privileged sites for many years. We report the characterisation of the ferret as a model for Ebola virus (EBOV) infection, reproducing disease and lethality observed in humans. The onset of clinical signs is rapid, and EBOV is detected in the blood, oral and rectal swabs, and all tissues studied. We identify viral RNA in the eye (a site of immune privilege) and report on specific genomic changes in EBOV present in this structure. Thus, the ferret model has utility in testing MCMs that prevent or treat long term EBOV persistence in immune-privileged sites. Importance Recent re-emergence of Ebola in Guinea that caused over 28000 cases between 2013-2016 has been linked to the original virus from that region. It appears the virus has remained in the region for at least 5 years and is likely to have been maintained in humans. Persistence of Ebola in areas of the body for extended periods of time has been observed such as in the eye and semen. Despite the importance of re-introduction of Ebola from this route, such events are rare in the population which makes studying medical interventions to clear persistent virus difficult. We studied various doses of Ebola in ferrets and detected virus in the eyes of most ferrets. We believe this model will enable the study of medical interventions that promote clearance of Ebola virus from sites that promote persistence.

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