Effects of sympathicolytic and sympathomimetic drugs on pineal ultrastructure in the domestic pig

1997 ◽  
Vol 23 (4) ◽  
pp. 198-208 ◽  
Author(s):  
Bogdan Lewczuk ◽  
Barbara Przybylska-Gornowicz
Keyword(s):  
Domestic Pig ◽  
Sympathomimetic Drugs ◽  
Pineal Ultrastructure

Modification of Pineal Ultrastructure by Exogenous Hormones

1967 ◽  
Vol 25 ◽  
pp. 170-171
Author(s):  
R. A. Turner ◽  
A. E. Rodin ◽  
D. K. Roberts
Keyword(s):  
Electron Microscopy ◽  
Endoplasmic Reticulum ◽  
Rough Endoplasmic Reticulum ◽  
Estradiol Benzoate ◽  
Female Rats ◽  
List Type ◽  
Type Number ◽  
Pregnant Rats ◽  
Gonadal Atrophy ◽  
Pineal Ultrastructure

There have been many reports which establish a relationship between the pineal and sexual structures, including gonadal hypertrophy after pinealectomy, and gonadal atrophy after injection of pineal homogenates or of melatonin. In order to further delineate this relationship the pineals from 5 groups of female rats were studied by electron microscopy:ControlsPregnant ratsAfter 4 weekly injections of 0.1 mg. estradiol benzoate.After 8 daily injections of 150 mcgm. melatonin (pineal hormone).After 8 daily injections of 3 mg. serotonin (melatonin precursor).No ultrastructural differences were evident between the control, and the pregnancy and melatonin groups. However, the estradiol injected animals exhibited a marked increase in the amount and size of rough endoplasmic reticulum within the pineal cells.

Perinatal Ontogeny of Brain Growth in the Domestic Pig

2000 ◽  
Vol 223 (1) ◽  
pp. 102-108 ◽  
Author(s):  
W. G. Pond ◽  
S. L. Boleman ◽  
M. L. Fiorotto ◽  
H. Ho ◽  
D. A. Knabe ◽  
...  
Keyword(s):  
Brain Growth ◽  
Domestic Pig

Dental Pathology of the Domestic Pig (Sus Scrofa Domesticus)

2021 ◽  
pp. 089875642198909
Author(s):  
Margaret A. Smith ◽  
Sangeeta Rao ◽  
Jennifer E. Rawlinson
Keyword(s):  
Sus Scrofa ◽  
Oral Examination ◽  
Deciduous Teeth ◽  
Common Finding ◽  
Missing Teeth ◽  
Domestic Pig ◽  
Radiographic Findings ◽  
Dental Pathology ◽  
Open Apices ◽  
Sus Scrofa Domesticus

Antemortem domestic pig (Sus scrofa domesticus) dental pathology literature is sparse. This observational descriptive study evaluated 23 client-owned pigs that while sedated/anesthetized for routine annual care had intraoral dental radiographs and an oral examination performed. Age, gender, weight, and breed for each pig were recorded. Oral examination and radiographic findings were reviewed to create a comprehensive list of dental abnormalities identified. Descriptive statistics were performed to summarize the data. The study population included 14 castrated males and 20 Vietnamese pot-bellied mini-pigs. The median age was 3 years (range 2-12 years), and the median weight was 39 kg (range 11-140 kg). The most common finding was missing teeth (21/23 pigs); the first premolar tooth was the most likely to be absent (64/106 missing teeth). Periodontal disease was common (20/23 pigs). Advanced stages primarily affected the first molar teeth frequently in the form of a mucogingival defect. Supernumerary roots were discovered on the maxillary canine teeth in female pigs only (10/25 teeth with supernumerary roots). The most common persistent deciduous tooth was the maxillary second incisor (15/19 persistent deciduous teeth). Non-age or gender related open apices were most likely associated with mandibular first and second incisor teeth (26/96 teeth with open apices). Tooth resorption was also identified (7/23 pigs). The study findings prove that pet pigs commonly have dental pathology; therefore, thorough oral examinations with intraoral radiographs should be included in porcine routine health care regimens.

mRNA expression profiles of P450 3A enzymes in the liver and small intestine of the domestic pig

2012 ◽  
Vol 93 (1) ◽  
pp. 360-365 ◽  
Author(s):  
Min Yao ◽  
Menghong Dai ◽  
Zhaoying Liu ◽  
Wenlong Cui ◽  
Daoyuan Li ◽  
...  
Keyword(s):  
Small Intestine ◽  
Mrna Expression ◽  
Expression Profiles ◽  
Domestic Pig
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