scholarly journals Protease-activated receptor 2 expression in the mammary gland tissues in correlation with mastitis severity in goats

2021 ◽  
Vol 888 (1) ◽  
pp. 012033
Author(s):  
M Z Sukiman ◽  
M H Chai ◽  
N S Sharifuddin ◽  
A Shamin ◽  
S M Z Ariffin ◽  
...  
Keyword(s):  
Mammary Gland ◽  
Mrna Expression ◽  
Clinical Signs ◽  
Saline Control ◽  
Mammary Gland Tissue ◽  
Lactating Goats ◽  
Gland Tissue ◽  
Group 2 ◽  
Protease Activated Receptor 2 ◽  
Group 1

Abstract Mastitis is a common disease in small ruminant industry. The present study aimed to determine the presence of protease activated receptor-2 (PAR2) mRNA expression in the mammary gland of mastitis challenged goats. 30 clinically healthy mix breed lactating goats were divided into three groups, consisting of Staphylococcus aureus (Group 1), methicillin-resistant S. aureus (Group 2) and sterile phosphate-buffered saline (Control) groups. The data regarding physical condition of udder and clinical parameters of goats were recorded while milk samples and mammary gland tissues were collected at 24 and 48 hours post infection. Somatic cell count (SCC) was measured by direct microscopic method. The presence of PAR2 mRNA in the mammary gland tissue samples was detected by real-time PCR. Goats from group 1 developed mild to moderate clinical signs while Group 2 exhibited moderate to severe clinical signs. SCC was higher in both challenged groups than control group. PAR2 mRNA expression was detected in all mammary gland samples from Group 1 and Group 2. The gene expression was significantly highly in mammary gland tissue with severe clinical signs. The finding of PAR2 expression in caprine mammary gland is novel and important, suggesting serine proteases involved the development of mastitis in goat.

PROTEOME OF MILK FAT GLOBULE MEMBRANE AND MAMMARY GLAND TISSUE IN GOAT FED DIFFERENT LIPID SUPPLEMENTATION

2021 ◽  
pp. 106378
Author(s):  
Iolly Tábata Oliveira Marques ◽  
Fábio Roger Vasconcelos ◽  
Juliana Paula Martins Alves ◽  
Assis Rubens Montenegro ◽  
César Carneiro Linhares Fernandes ◽  
...  
Keyword(s):  
Mammary Gland ◽  
Milk Fat ◽  
Milk Fat Globule Membrane ◽  
Mammary Gland Tissue ◽  
Gland Tissue ◽  
Milk Fat Globule ◽  
Lipid Supplementation ◽  
Fat Globule

Effect of pravastatin on cisplatin-induced nephrotoxicity in rats

2010 ◽  
Vol 30 (7) ◽  
pp. 603-615 ◽  
Author(s):  
Mikiya Fujieda ◽  
Taku Morita ◽  
Keishi Naruse ◽  
Yoshihiro Hayashi ◽  
Masayuki Ishihara ◽  
...  
Keyword(s):  
Mrna Expression ◽  
Serum Lipids ◽  
Control Diet ◽  
Lipid Lowering ◽  
Tunel Staining ◽  
Tubular Damage ◽  
P53 Expression ◽  
Group 2 ◽  
Expression And Activity ◽  
Group 1

We investigated whether pravastatin ameliorates renal damage induced by cisplatin (CP). Forty-three male Wistar rats were divided into four groups: rats treated with a control diet for 19 days and saline injection on day 14 (group1), group 1 with pravastatin treatment with 19 days (group 2), group 1 with CP injection on day 14 (group 3), and group 2 with CP injection (group 4). Renal function and serum lipids, renal malondialdehyde (MDA) and glutathione (GSH) levels, glutathione peroxidase (GPx) mRNA expression and activity, and kidney triglyceride (TG) concentrations were measured. Histology was evaluated by light microscopy with immunohistochemistry for p53, p53-upregulated modulation of apoptosis (PUMA), and terminal deoxynucleotide transferase dUTP nick end-labeling (TUNEL) staining. CP induced renal tubular damage with a higher MDA level, increased PUMA expression, p53- and TUNEL-positive cells counts, elevation of serum lipids, and decreased GSH level, GPx mRNA expression, and activity. Pravastatin partially ameliorated CP-induced renal injury, based on suppression of the renal MDA and TG levels, decreased p53 expression, and apoptosis in CP-treated rats. These findings suggest that pravastatin has a partial protective effect against CP nephrotoxicity via antioxidant activity as well as attenuation of the p53 response, and lipid-lowering effects.

Preliminary evaluation of cytosine-phosphate-guanine oligodeoxynucleotides bound to gelatine nanoparticles as immunotherapy for canine atopic dermatitis

2017 ◽  
Vol 181 (5) ◽  
pp. 118-118 ◽  
Author(s):  
I. Wagner ◽  
K. J. Geh ◽  
M. Hubert ◽  
G. Winter ◽  
K. Weber ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Mrna Expression ◽  
Transforming Growth Factor ◽  
Transforming Growth Factor Β ◽  
Interferon Γ ◽  
Preliminary Evaluation ◽  
Cpg Odn ◽  
Canine Atopic Dermatitis ◽  
Group 2 ◽  
Group 1

Cytosine-phosphate-guanine oligodeoxynucleotides (CpG ODN) are a promising new immunotherapeutic treatment option for canine atopic dermatitis (AD). The aim of this uncontrolled pilot study was to evaluate clinical and immunological effects of gelatine nanoparticle (GNP)-bound CpG ODN (CpG GNP) on atopic dogs. Eighteen dogs with AD were treated for 8 weeks (group 1, n=8) or 18 weeks (group 2, n=10). Before inclusion and after 2 weeks, 4 weeks, 6 weeks (group 1+2), 8 weeks, 12 weeks and 16 weeks (group 2) 75 µg CpG ODN/dog (bound to 1.5 mg GNP) were injected subcutaneously. Pruritus was evaluated daily by the owner. Lesions were evaluated and serum concentrations and mRNA expressions of interferon-γ, tumour necrosis factor-α, transforming growth factor-β, interleukin (IL) 10 and IL-4 (only mRNA expression) were determined at inclusion and after 8 weeks (group 1+2) and 18 weeks (group 2). Lesions and pruritus improved significantly from baseline to week 8. Mean improvements from baseline to week 18 were 23 per cent and 44 per cent for lesions and pruritus, respectively, an improvement of ≥50 per cent was seen in six out of nine and three out of six dogs, respectively. IL-4 mRNA expression decreased significantly. The results of this study show a clinical improvement of canine AD with CpG GNP comparable to allergen immunotherapy. Controlled studies are needed to confirm these findings.

Spectral Characterization of Fluorescently Labeled Catechol Estrogen 3,4-Quinone-Derived N7 Guanine Adducts and Their Identification in Rat Mammary Gland Tissue

1998 ◽  
Vol 11 (11) ◽  
pp. 1339-1345 ◽  
Author(s):  
Ryszard Jankowiak ◽  
Dan Zamzow ◽  
Douglas E. Stack ◽  
Rosa Todorovic ◽  
Ercole L. Cavalieri ◽  
...  
Keyword(s):  
Mammary Gland ◽  
Spectral Characterization ◽  
Mammary Gland Tissue ◽  
Gland Tissue ◽  
Guanine Adducts ◽  
Catechol Estrogen ◽  
Rat Mammary Gland

Abstract WP284: Pro-inflammatory Response Elicited by Porphyromonas Gingivalis Lipopolysaccharide Exacerbates the Rupture of Experimental Cerebral Aneurysms

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Takeshi Miyamoto ◽  
Keiko T Kitazato ◽  
Yoshiteru Tada ◽  
Kenji Shimada ◽  
Kenji Yagi ◽  
...  
Keyword(s):  
Inflammatory Response ◽  
Porphyromonas Gingivalis ◽  
Intracranial Aneurysms ◽  
Renal Hypertension ◽  
Saline Control ◽  
High Morbidity ◽  
Aneurysmal Rupture ◽  
Porphyromonas Gingivalis Lipopolysaccharide ◽  
Group 2 ◽  
Group 1

Introduction: Subarachnoid hemorrhage (SAH) is a catastrophic event with high morbidity and a poor prognosis. To prevent SAH, its pathogenesis must be understood. Dental infection may play a part in the pathophysiology of intracranial aneurysms. In our newly established rat model of aneurysms, the vascular inflammatory response was associated with their rupture. Therefore we hypothesized that the inflammatory response exacerbated by periodontal pathogens affects experimental cerebral aneurysm rupture. Methods: Aneurysms were induced in 10-week-old female Sprague-Dawley rats by eliciting estrogen deficiency, renal hypertension, and hemodynamic stress. Two weeks later they were divided into 2 groups; group 1 (n=13) was treated with Porphyromonas gingivalis lipopolysaccharide (LPS), group 2 (n=17) was the saline control. Both groups were intraperitoneally injected once a week. Results: During the 90-day observation period, 7 group 1 (54%) and 6 group 2 rats (35%) suffered aneurysmal rupture. The incidence of rupture within 60 days was significantly higher in group 1 than group 2 (38% vs 6%, p<0.05), indicating that LPS promoted experimental aneurysmal rupture. The administration of LPS increased the plasma level of IL-1β and MMP-9 and the mRNA level of TLR2, IL-1β, and MMP-9 in the vascular wall prone to rupture on day 60. In our in vitro studies, IL-1β mRNA was increased in vascular smooth muscle cells exposed to LPS. These results suggest that LPS enhances the rupture of intracranial aneurysms via the promotion of local and systemic pro-inflammatory responses. Conclusion: Our study first documents that in rats, Porphyromonas gingivalis LPS exacerbates vascular inflammation and enhances the rupture of intracranial aneurysms.

Investigation of TAp63 gene Expression and Follicle Count Using Melatonin in Cisplatin-induced Ovarian Toxicity

2020 ◽  
Author(s):  
Hacı Öztürk Şahin ◽  
Mehmet Nuri Duran ◽  
Fatma Sılan ◽  
Ece Sılan ◽  
Duygu Sıddıkoglu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Female Rats ◽  
Histological Evaluation ◽  
Saline Control ◽  
Control Group ◽  
Ovarian Toxicity ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Abstract Background: Premature ovarian failure is among the most important side effects of chemotherapy during reproductive period. Preserving ovarian function is gradually gaining importance during oncologic treatment. The present study aims to investigate the potential of melatonin to protect from cisplatin-induced ovarian toxicity in rats. Twenty nine female rats were divided to three groups: Saline control group (Group 1), cisplatin group (Group 2), and cisplatin+melatonin group (Group 3). While the rats in Groups 2 and 3 were administered 5 mg/kg single dose of cisplatin via intra-peritoneal (IP) route, the rats in Group 3 were started on melatonin (20 mg/kg IP) before cisplatin administration and continued during 3 consecutive days. Ovaries were removed one week after cisplatin administration in all groups. Blood samples were obtained before the rats were decapited. Histological evaluation, follicle count, and classification were performed. TAp63 mRNA expression was evaluated using mRNA extraction and real-time polymerase chain reaction (PCR) method. Serum estradiol (E2) and anti-mullerian hormone (AMH) values were measured with enzyme immune-assay technology. Results: While primordial follicles were seen to decrease in Group 2 as compared to Group 1 (p:0.023), primordial follicle count was observed to be preserved significantly in melatonin group as compared to Group 2 (p:0.047). Moreover, cisplatin-induced histo-pathological morphology was preserved in favor of normal histology in melatonin group. A significant difference was not observed between groups with regard to mean serum AMH and E2 values (p:0.102 and p:0.411, respectively). While TAp63 gene expression significantly increased in Group 2 as compared to control group (p:0.001), we did not detect a statistically significant difference in cisplatin+melatonin group, although gene expression decreased (p:0.34). Conclusion: We conclude that concurrent administration of melatonin and cisplatin may protect from ovarian damage.

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