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1.
Braz. arch. biol. technol ; 64: e21210256, 2021. tab, graf
Article in English | LILACS | ID: biblio-1339311

ABSTRACT

Abstract While the role of cytokines in celiac disease has been investigated in detail, cytokine release in the event of the exposure of healthy subjects to glutens has only recently been studied. This study was aimed at determining the effects of corn and wheat glutens, incorporated as protein sources into the diet, on serum interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) levels and the immunohistochemical distribution of CD3 and CD8 receptors in the small intestine in male rats. The study material comprised 24 twenty-day-old male Wistar albino rats, which were randomly assigned in equal numbers to three groups (2 rats/replicate and 4 replicates/group). The feed rations provided to all three groups contained high levels of proteins, which were soybean meal, corn gluten and wheat gluten in the control, corn and wheat groups, respectively. The in Control, Corn and Wheat groups serum IL-1 beta and TNF-alpha levels respectively 55.83 - 46.37; 81.65 - 61.95 and 81.65-61.31 was determined but these differences were statistically insignificant. Furthermore, immunohistochemical examination demonstrated a mathematical increase to have occurred in the distribution of the CD3 and CD8 receptors in the duodenum, jejunum and ileum samples of the corn and wheat groups. In result, based on the findings obtained in this study, we suggest that the long-term feeding of rats on high levels of gluten causes systemic adverse effects.


Subject(s)
Animals , Rats , Cytokines/drug effects , Tumor Necrosis Factor-alpha/drug effects , Interleukin-1beta/drug effects , Glutens/pharmacology , Immunohistochemistry , Rats, Wistar
2.
Int. j. morphol ; 37(3): 1008-1015, Sept. 2019. tab, graf
Article in English | LILACS | ID: biblio-1012389

ABSTRACT

This study was planned to determine the histochemical alterations of the submandibular gland by implantation of long-term GnRH (deslorelin 4.7 mg). Eighteen Wistar albino rats were used in the study. Alcian blue (AB; pH: 2.5), periodic acid-Schiff (PAS) staining was performed to determine the microscopic structure and histochemical structure of the GI submandibular gland. The Avidin-Biotin Complex (ABC) method was used to determine the immunohistochemical reactivity of lectin. After GnRH implantation, the organs were examined and atrophies were observed in organs. In the group in which the implants were removed, it was determined that there was no atrophy; organ structures and microscopic examination were similar to the control group. At the end of the study, submandibular gland was fixed in 10 % buffered formaldehyde. In three groups, PAS and AB histochemical staining revealed similar reactions. Immunohistochemically, lectin activity was found to react positively.


Este estudio se planificó para determinar las alteraciones histoquímicas de la glándula submandibular mediante la implantación de GnRH a largo plazo (deslorelina 4,7 mg). Dieciocho ratas Wistar albinas se utilizaron en el estudio. Para determinar la estructura microscópica e histoquímica de la glándula submandibular, se realizó una tinción con azul alcián (AA; pH: 2.5) y ácido peryódico de Schiff (PAS). El método Avidin-Biotin Complex (ABC) se utilizó para determinar la reactividad inmunohistoquímica de la lectina. Después de la implantación de GnRH, se examinaron los órganos y se observó atrofia en ellos. En el grupo en el que se retiraron los implantes, no se observó atrofia. Las estructuras orgánicas y el examen microscópico fueron similares al grupo control. Al final del estudio, la glándula submandibular se fijó en formaldehído tamponado al 10 %. En tres grupos, la tinción histoquímica de PAS y AA reveló reacciones simila4res. Inmunohisto-químicamente, se encontró que la actividad de la lectina reaccionó positivamente.


Subject(s)
Animals , Male , Rats , Salivary Glands/drug effects , Triptorelin Pamoate/analogs & derivatives , Immunohistochemistry , Triptorelin Pamoate/pharmacology , Rats, Wistar , Lectins
3.
Int. j. morphol ; 36(4): 1235-1240, Dec. 2018. tab, graf
Article in English | LILACS | ID: biblio-975689

ABSTRACT

This study was aimed to search the effect of wheatgrass on the Total Antioxidan (TAS)-Oxidan Status (TOS) and DNA damage in rat with diabetes. The rats used in the study were randomly divided into 4 groups that each of has 10 rats: Control group; 1 ml single dose phosphate-citrate buffer injected i.p (pH: 4.5), Diabetes group; 45 mg/kg single dose streptozotocin injected i.p., Wheatgrass group; was given oral wheatgrass (10 ml/kg/day) for 6 weeks, Diabetes +Wheatgrass group; 45 mg/kg single dose streptozotocin injected i.p. and wheatgrass (10 ml/kg/day) was given by oral during 6 weeks. After the process of experiment during 6 weeks, blood sample and pancreas tissue were taken. The analysis were done of blood glucose levels, TAS, TOS levels by colorimetric kits; DNA damage by ELISA kits in serum. The pancreas tissues were examined histopathologically. In the group of Diabetes+Wheatgrass was determined that the levels of glucose levels (p<0.001), TOS (p<0.05) and OSI (p<0.01) statistically decreased and heal histopatolojical compared to diabetes group. In the group of Wheatgrass was determined that the levels of TAS p<0.05 statistically increased from other groups. The statistical significance were not found in the level of serum 8OHdG differences between the groups. The beta cells were seen to increase in the group receiving wheatgrass for therapeutic purposes.As a conclusion, it was determined that wheatgrass strengthened the anti-oxidant defense system and reduced the glucose level in diabetic rats.


El objetivo de este estudio fue buscar el efecto del pasto de trigo sobre el estado total de antioxidantes (TAS) -Oxidan Status (TOS) y el daño del ADN en ratas con diabetes. Las ratas analizadas en el estudio se dividieron aleatoriamente en 4 grupos de 10 ejemplares cada uno: grupo control; 1 ml de tampón fosfato-citrato de dosis única inyectado i.p. (pH: 4,5)., Grupo diabetes; 45 mg / kg de estreptozotocina en dosis única inyectada i.p., grupo pasto de trigo; se administró pasto de trigo oral (10 ml / kg / día) durante 6 semanas, grupo diabetes + pasto de trigo; 45 mg / kg de estreptozotocina en dosis única inyectada i.p. y pasto de trigo (10 ml / kg / día) por vía oral durante 6 semanas. Después del proceso experimental durante 6 semanas, se tomaron muestras de sangre y tejido de páncreas. Se midieron los niveles de glucosa en sangre, TAS, y TOS mediante kits colorimétricos; El daño al ADN fue realizado por kits de ELISA en suero. Los tejidos del páncreas se examinaron histopatológicamente. En el grupo de diabetes + pasto de trigo se determinó que los niveles de glucosa (p <0,001), TOS (p <0,05) y OSI (p <0,01) disminuyeron estadísticamente y curaron histopatológicamente en comparación con el grupo de diabetes. En el grupo de pasto de trigo se determinó que los niveles de TAS p <0,05 se incrementaron estadísticamente con respecto a otros grupos. No fue estadísticamente significativo el nivel de las diferencias séricas de 8OHdG entre los grupos. Se observó que las células beta aumentaron en el grupo que recibió pasto de trigo con fines terapéuticos. Como conclusión, se determinó que el pasto de trigo fortaleció el sistema de defensa antioxidante y redujo el nivel de glucosa en las ratas diabéticas.


Subject(s)
Animals , Rats , Triticum/chemistry , Plant Extracts/administration & dosage , Diabetes Mellitus, Experimental/drug therapy , Pancreas/drug effects , Blood Glucose/drug effects , DNA Damage/drug effects , Plant Extracts/pharmacology , Oxidants/blood , Rats, Wistar , Oxidative Stress/drug effects , Insulin-Secreting Cells/drug effects , Antioxidants/analysis
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