Histological evaluation of preoperative biopsies from ampulla Vateri

2003 ◽  
Vol 9 (1) ◽  
pp. 32-41 ◽  
Author(s):  
Gábor Elek ◽  
Sándor Gyôri ◽  
Bernadett Tóth ◽  
Ákos Pap
Keyword(s):  
Histological Evaluation ◽  
Ampulla Vateri

Histological evaluation of cochlear hair cell damage from noise-induced hearing loss in chinchillas

1990 ◽  
Vol 48 (3) ◽  
pp. 332-333
Author(s):  
R.V. Harrison ◽  
R.J. Mount ◽  
P. White ◽  
N. Fukushima
Keyword(s):  
Hair Cell ◽  
Evoked Potential ◽  
Cell Damage ◽  
Acoustic Trauma ◽  
Histological Evaluation ◽  
Cell Integrity ◽  
Functional Changes ◽  
Cochlear Hair Cell ◽  
Left And Right ◽  
Contralateral Ear

In studies which attempt to define the influence of various factors on recovery of hair cell integrity after acoustic trauma, an experimental and a control ear which initially have equal degrees of damage are required. With in a group of animals receiving an identical level of acoustic trauma there is more symmetry between the ears of each individual, in respect to function, than between animals. Figure 1 illustrates this, left and right cochlear evoked potential (CAP) audiograms are shown for two chinchillas receiving identical trauma. For this reason the contralateral ear is used as control.To compliment such functional evaluations we have devised a scoring system, based on the condition of hair cell stereocilia as revealed by scanning electron microscopy, which permits total stereociliar damage to be expressed numerically. This quantification permits correlation of the degree of structural pathology with functional changes. In this paper wereport experiments to verify the symmetry of stereociliar integrity between two ears, both for normal (non-exposed) animals and chinchillas in which each ear has received identical noise trauma.

Clinical and histological evaluation of thermal injury thresholds in human teeth: a preliminary study

1997 ◽  
Vol 24 (11) ◽  
pp. 791-801 ◽  
Author(s):  
P. BALDISSARA ◽  
S. CATAPANO ◽  
R. SCOTTI
Keyword(s):  
Thermal Injury ◽  
Histological Evaluation ◽  
Human Teeth ◽  
Preliminary Study

The Effect of Dietary Glutathione and Coenzyme Q10 on the Prevention and Treatment of Inflammatory Bowel Disease in Mice

2004 ◽  
Vol 74 (1) ◽  
pp. 74-85 ◽  
Author(s):  
Liu ◽  
Russell ◽  
Smith ◽  
Bronson ◽  
Milbury ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Dextran Sulfate ◽  
Coenzyme Q ◽  
Histological Evaluation ◽  
Therapeutic Effects ◽  
Prevention Study ◽  
Prevention And Treatment ◽  
Inflammatory Bowel ◽  
Pre Treatment

Because reactive oxygen species have been implicated as mediators of inflammatory bowel disease (IBD), we evaluated the potential preventive and therapeutic effects of two dietary antioxidants, glutathione (GSH) and coenzyme Q10 (CoQ10) on dextran sulfate sodium (DSS)-induced colitis in mice. Fifty female 8-wk old Swiss-Webster mice were randomly assigned to 4 groups for a pre-treatment 'prevention' study: (1) GSH (1% of diet); (2) CoQ10 (200 mg/kg/d); (3) DSS only (3% of drinking water); (4) control (no treatment). The mice in groups 1 and 2 were fed with GSH or CoQ10 for 21 wks, and the mice in groups 1, 2 and 3 were provided DSS from wk 7 for 4 cycles (1 cycle = 1 wk DSS followed by 2-wk water). Another 50 mice were randomly assigned to 4 groups for a 21-wk 'treatment' study where the mice in groups 1, 2, and 3 were administered DSS for 6 cycles (18 wks) to induce colitis. GSH and CoQ10 were added from wk 7 until the completion of the protocol. Loose stools and hemocult positivity were modestly but significantly reduced with GSH or CoQ10 at several periods during the intervention in both the prevention and treatment studies. In contrast, histological evaluation revealed increases in colonic dysplasia and ulceration with GSH or CoQ10. Thus, in this mouse model, GSH and CoQ10 appear to have a beneficial effect on acute signs of IBD, but may have an adverse impact on the chronic pathophysiology of the disease. Further studies using additional animal models are required to determine whether GSH or CoQ10 provide a favorable or unfavorable benefit:risk ratio in the prevention or treatment of IBD.

An unusual case of spinal cord restricted mycobacteriosis in a European mink

2013 ◽  
Vol 41 (01) ◽  
pp. 63-66
Author(s):  
D. Schaudien ◽  
C. Flieshardt ◽  
I. Moser ◽  
H. Hotzel ◽  
A. Tipold ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Unusual Case ◽  
Histological Evaluation ◽  
Mustela Lutreola ◽  
Chain Reaction ◽  
European Mink ◽  
Pcr Product ◽  
Granulomatous Lesions ◽  
The Central Nervous System ◽  
Polymerase Chain

SummaryGranulomatous myelitis due to infection with Mycobacterium avium was diagnosed in a 4-year-old male neutered European mink (Mustela lutreola). The causative agent was detected by an acid-fast stain and further characterized by polymerase chain reaction and DNA sequencing of the PCR product. A thorough histological evaluation of the remaining organs revealed no granulomatous lesions or detectable acid-fast organisms. Although minks are generally highly susceptible for mycobacteria, localised infections, especially of the central nervous system, are unusual and may represent an atypical chronic form of the disease.

Flaxseed and Vitamin E Exert Synergic Antioxidant Action on Diabetic Nephropathy in Experimental Diabetes

2017 ◽  
Vol 68 (7) ◽  
pp. 1449-1452 ◽  
Author(s):  
Raluca Ecaterina Haliga ◽  
Doina Butcovan ◽  
Teodor Oboroceanu ◽  
Alin Constantin Pinzariu ◽  
Victor Vlad Costan ◽  
...  
Keyword(s):  
Diabetic Nephropathy ◽  
Vitamin E ◽  
Intraperitoneal Injection ◽  
Experimental Diabetes ◽  
Histological Evaluation ◽  
Standard Diet ◽  
Antioxidant Action ◽  
Syrian Hamsters

This study investigated the effects of flaxseed and vitamin E on diabetic nephropathy lesions in an experimental-induced model of diabetes in hamsters. Diabetes was induced by intraperitoneal injection of streptozotocin (STZ) in male Golden Syrian hamsters, and diabetic animals were fed either standard diet, or standard diet supplemented with flaxseed (150 g/kg diet), vitamin E (400 mg a-tocopherol/kg diet) or combination of flaxseed and vitamin E in the same dosages, for 20 weeks. Kidney histological evaluation of the diabetic hamsters revealed histological lesions characteristic for diabetic nephropathy, while supplementation of the diet with flaxseed and/or vitamin E improved histological aspects of diabetic nephropathy.

Optimizing Bone Wound Healing Using BMP2 with BDNF in Osteoporotic Rats: Histological Evaluation

2020 ◽  
Vol 11 (2) ◽  
pp. 1462
Author(s):  
Athraa Y. Al-Hijazi ◽  
Noor Natik Raheem ◽  
Ali JB Al-Sharki
Keyword(s):  
Wound Healing ◽  
Histological Evaluation

CLINICAL AND HISTOLOGICAL EVALUATION OF GINGIVAL HEALING AFTER GINGIVECTOMY AND LOW-LEVEL LASER THERAPY

2017 ◽  
Vol 63 (1) ◽  
pp. 523-532
Author(s):  
Azza Koura ◽  
Marwa Madi ◽  
Nancy Mamdouh
Keyword(s):  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Histological Evaluation ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser
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