Piret Hussar
Biographic Data
| ID | 129379 |
|---|---|
| NAME | Piret Hussar |
| GIVEN NAMES | Piret |
| FAMILY NAME | Hussar |
| SIGNATURE | HUSSAR P |
| AFFILIATIONS | University of Tartu |
| ORCID | 0000-0001-5667-4985 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 2 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2022 |
| H-INDEX | 1 |
Teaching activities in flipped classroom study design
In recent years, the flipped classroom (FC) methodology - contact learning preceded by individual learning and the creation of prior knowledge in the learner - has become increasingly common in university teaching. However, the design of the FC has been applied differently in teaching. The aim of our research was to map the teaching activities used in various FC designs and to compare the use of the methods for study groups of different sizes. In…
Immunolocalization of hexose transporters in ostriches' intestinal epithelial cells during their first postnatal week
Although hexoses glucose and fructose serve as important energy sources of food, up to now, there is little information about hexose transporters in birds' intestinal epithelium during their first postnatal week. The aim of the investigation was to carry out an immunohistochemical study of integral membrane proteins glucose transporter-2 and -5 (GLUT-2 and GLUT-5) on intestinal epithelial cells of ostrich chicks during their first postnatal week.…
Remembering Ülo Hussar - Estonian professor of histology and embryology
Remembering Ülo Hussar - Estonian professor of histologyand embryology
T-2 mycotoxin induced apoptosis in broiler's liver tissue
Apoptosis is a process of programmed cell death that occurs in multicellular organisms. As T-2 toxin is known to induce apoptosis in mammalian cells, the aim of the present experiment was to study the toxic effect of T-2 on chicken liver tissue using apoptosis-related antibodies p21 and p53 which are involved in the p53/p21-mediated apoptotic signalling pathway. The experiment was conducted on fourteen 40-day-old broilers (Gallus gallus domesticu…
Effect of t-2 mycotoxin on glut-2 expression in the broiler's gastrointestinal tract
T-2 toxin is a trichothecene mycotoxin. It is a naturally occurring mold by product of Fusarium spp. fungus which is toxic to humans and animals. Deleterious effects of these feed contaminants in animals are well documented, ranging from growth impairment, decreased resistance to pathogens, hepato- and nephrotoxicity to death. As the initial interaction of mycotoxins is with the gut epithelium the epithelium is repeatedly exposed to these toxins …
Histochemical and immunohistochemical investigation of pelvic symhysis of Holstein-Friesian cattle
Although the knowledge on morphological changes in cattle pelvic symphysis during gestation and obstetrics gives valuable information about the age of optimal primary calving of cows, up to now little research has been carried out about the ossification of pelvic symphysis. The aim of the study was to carry out histochemical and immunohistochemical comparative investigation of pelvic symphysis in calves, in-calfed and after-calved Estonian Holste…
Apoptosis regulator BCL-2
Apoptosis (programmed cell death) is required for the removal of infected, damaged or unwanted cells. Inadequate cell death is a major contributing factor to tumorigenesis, while excess cell death contributes to neurodegeneration and autoimmune diseases.Current investigations suggest the mechanisms by which Bcl-2 might prevent cell death. Bcl-2 family members mediate anti-apoptotic signals in a wide variety of human cell systems. Bcl-2 protein fa…
Dexamethasone-induced T-lymphocyte apoptosis in different lymphoid organs
The aim of our study was the comparison of the synthetic glucocorticoid dexamethasone (DEXA) influence on T-lymphocytes in central (thymus) and peripheral (spleen, lymphatic nodes) immune organs. For that reason therapeutic doses of DEXA were used followed by histological, histochemical (TUNEL) as well as computerized histomorphometrical investigations. In the study 36 young adult Wistar rats performed. 1–7 days after 3 days injection of DEXA (to…
Dynamics of cell population structure in liver biopsy of the patients with chronic hepatitis viral infection
The cell population analysis of liver biopsies from the patients with both chronic hepatitis, chronic viral hepatitis C (HCV) and chronic viral hepatitis B (HBV) included the comparative evaluation of the specific part of non-parenchymal elements, analysis of the liver plates and sinusoids areas, the cell population of liver plates and sinusoids, the caryometric description of different types of cells. The essential difference of similar quantita…
Glucose transporters in the blood-brain barrier
The central nervous system and peripheral nerves are guarded against free access from the outside by the blood-brain, blood-cerebrospinal fluid and blood-nerve barriers. The glucose transporter GLUT1 mediates the specific transfer of glucose across these barriers while GLUT3 is a high-affinity isoform of Type I glucose transporter expressed mostly in neurons where it is believed to be the main glucose transporter isoform. As for a long time it wa…
Teaching activities in flipped classroom study design
In recent years, the flipped classroom (FC) methodology - contact learning preceded by individual learning and the creation of prior knowledge in the learner - has become increasingly common in university teaching. However, the design of the FC has been applied differently in teaching. The aim of our research was to map the teaching activities used in various FC designs and to compare the use of the methods for study groups of different sizes. In…
Dexamethasone-induced T-lymphocyte apoptosis in different lymphoid organs
The aim of our study was the comparison of the synthetic glucocorticoid dexamethasone (DEXA) influence on T-lymphocytes in central (thymus) and peripheral (spleen, lymphatic nodes) immune organs. For that reason therapeutic doses of DEXA were used followed by histological, histochemical (TUNEL) as well as computerized histomorphometrical investigations. In the study 36 young adult Wistar rats performed. 1–7 days after 3 days injection of DEXA (to…
Dynamics of cell population structure in liver biopsy of the patients with chronic hepatitis viral infection
The cell population analysis of liver biopsies from the patients with both chronic hepatitis, chronic viral hepatitis C (HCV) and chronic viral hepatitis B (HBV) included the comparative evaluation of the specific part of non-parenchymal elements, analysis of the liver plates and sinusoids areas, the cell population of liver plates and sinusoids, the caryometric description of different types of cells. The essential difference of similar quantita…
Glucose transporters in the blood-brain barrier
The central nervous system and peripheral nerves are guarded against free access from the outside by the blood-brain, blood-cerebrospinal fluid and blood-nerve barriers. The glucose transporter GLUT1 mediates the specific transfer of glucose across these barriers while GLUT3 is a high-affinity isoform of Type I glucose transporter expressed mostly in neurons where it is believed to be the main glucose transporter isoform. As for a long time it wa…
Apoptosis regulator BCL-2
Apoptosis (programmed cell death) is required for the removal of infected, damaged or unwanted cells. Inadequate cell death is a major contributing factor to tumorigenesis, while excess cell death contributes to neurodegeneration and autoimmune diseases.Current investigations suggest the mechanisms by which Bcl-2 might prevent cell death. Bcl-2 family members mediate anti-apoptotic signals in a wide variety of human cell systems. Bcl-2 protein fa…
Histochemical and immunohistochemical investigation of pelvic symhysis of Holstein-Friesian cattle
Although the knowledge on morphological changes in cattle pelvic symphysis during gestation and obstetrics gives valuable information about the age of optimal primary calving of cows, up to now little research has been carried out about the ossification of pelvic symphysis. The aim of the study was to carry out histochemical and immunohistochemical comparative investigation of pelvic symphysis in calves, in-calfed and after-calved Estonian Holste…
Effect of t-2 mycotoxin on glut-2 expression in the broiler's gastrointestinal tract
T-2 toxin is a trichothecene mycotoxin. It is a naturally occurring mold by product of Fusarium spp. fungus which is toxic to humans and animals. Deleterious effects of these feed contaminants in animals are well documented, ranging from growth impairment, decreased resistance to pathogens, hepato- and nephrotoxicity to death. As the initial interaction of mycotoxins is with the gut epithelium the epithelium is repeatedly exposed to these toxins …
Remembering Ülo Hussar - Estonian professor of histology and embryology
Remembering Ülo Hussar - Estonian professor of histologyand embryology
T-2 mycotoxin induced apoptosis in broiler's liver tissue
Apoptosis is a process of programmed cell death that occurs in multicellular organisms. As T-2 toxin is known to induce apoptosis in mammalian cells, the aim of the present experiment was to study the toxic effect of T-2 on chicken liver tissue using apoptosis-related antibodies p21 and p53 which are involved in the p53/p21-mediated apoptotic signalling pathway. The experiment was conducted on fourteen 40-day-old broilers (Gallus gallus domesticu…
Immunolocalization of hexose transporters in ostriches' intestinal epithelial cells during their first postnatal week
Although hexoses glucose and fructose serve as important energy sources of food, up to now, there is little information about hexose transporters in birds' intestinal epithelium during their first postnatal week. The aim of the investigation was to carry out an immunohistochemical study of integral membrane proteins glucose transporter-2 and -5 (GLUT-2 and GLUT-5) on intestinal epithelial cells of ostrich chicks during their first postnatal week.…
Teaching activities in flipped classroom study design
In recent years, the flipped classroom (FC) methodology - contact learning preceded by individual learning and the creation of prior knowledge in the learner - has become increasingly common in university teaching. However, the design of the FC has been applied differently in teaching. The aim of our research was to map the teaching activities used in various FC designs and to compare the use of the methods for study groups of different sizes. In…
Biology (8 works) · Medicine (8 works) · Immunohistochemistry (5 works) · Immunology (5 works) · Internal Medicine (5 works) · Pathology (5 works) · Biochemistry (4 works) · Endocrinology (4 works) · Antibody (3 works) · Apoptosis (3 works)