Calf Sterile Filtered Serum (DAGC280)

Product Overview
The raw materials for these products were collected from calves 12 months and younger in the USA in abattoirs registered with the USDA. The animals received ante and post-mortem inspections under a veterinarian's supervision and were apparently free from infectious and contagious diseases. At no time during collection or processing was the material commingled with any other material of animal origin.
Calf Serum
Alternative Names
Bovine Calf Serum; Serum; Calf Serum
0.2 micron (Absolute)
Hemoglobin: <30 mg/dl
Protein:>6.0 g/dl
100ml, 500ml
pH: 6.8 - 8.2
This serum is stable for ≥ 5 years when stored −20°C ± 5°C. Avoid repeated freezing and thawing.
Bovine Calf Serum; Serum; Calf Serum


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Effects of N-acetylcysteine on oxidative stress and inflammation reactions in a rat model of allergic rhinitis after PM2.5 exposure


Authors: Wang, Jinchao; Guo, Zhiqiang; Zhang, Ruxin; Han, Zhijin; Huang, Yu; Deng, Congrui; Dong, Weiyang; Zhuang, Guoshun

Particulate matter 2.5 (PM2.5) exposure can increase the prevalence of allergic rhinitis (AR), the mechanism underlying which may include oxidative stress and inflammatory response. As a ROS quenching agent, N-acetylcysteine (NAC) can attenuate the accumulation of inflammatory cells and hyper-responsiveness in animal asthma models. To explore the effect of NAC on the oxidative stress and inflammatory reactions in AR rats exposed to PM2.5, we analyzed the components of PM2.5 and examined the nasal symptoms, redox level in nasal mucosa, Th1/Th2-related serum cytokines, nasal mucosal histopathology and ultrastructure in AR rat models with NAC intervention after PM2.5 exposure. The results showed that the high concentrations of metal cations and PAHs in PM2.5 could aggravate Th2-dominant allergic inflammation in AR model and cause redox imbalance, accompanied by nasal epithelial cell stripping and eosinophil infiltration, while NAC intervention could alleviate the clinical symptoms of AR model after PM2.5 exposure, correct the redox imbalance, reduce the Th2 cytokines, reduce eosinophil infiltration, and promote the moderate regeneration of epithelial cells. The mechanism of NAC reversing PM2.5-mediated action may be related to its anti-oxidant and anti-inflammatory effects, which may provide some new insights for the prevention of AR exacerbated by exposure to PM2.5. (C) 2020 Elsevier Inc. All rights reserved.

Long non-coding RNA expression profiles identify lncRNA-XLOC_I2_006631 as a potential novel blood biomarker for Hashimoto's thyroiditis


Authors: Peng, Huiyong; Xiong, Si; Ding, Xiangmei; Tang, Xinyi; Wang, Xuehua; Wang, Li; Liu, Yingzhao

Long non-coding RNAs (lncRNAs) have been increasingly recognized as important immune checkpoints involved in the pathogenesis of autoimmune diseases. However, the exact role of lncRNAs in Hashimoto's thyroiditis (HT) has been rarely studied. The aim of the present study was to investigate the role of lncRNAs and the potential biomarkers in HT, a total of 33 patients with HT and 32 healthy volunteers were enrolled in the present study, and five patients and five healthy controls were investigated using next generation sequencing. A total of 218 dysregulated lncRNAs, including 94 upregulated and 124 downregulated lncRNAs, were identified and examined in the peripheral blood mononuclear cells (PBMCs) from patients with HT. The majority of the lncRNAs were intergenic and exonic (66.06%). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analysis demonstrated that abnormally expressed lncRNAs were enriched in the 'NF-kB expression', in the 'TGF-beta signaling pathway' and in the 'JAK-STAT signaling pathway', which are associated with the immunopathogenic mechanisms of HT. In total, three lncRNAs (LOC729737, XLOC_I2_006631 and BC041964) were validated and had a trend identical to that detected by the sequencing results. The expression of lncRNA-XLOC_I2_006631 was upregulated and was positively correlated with the serum concentrations of anti-thyroperoxidase antibody in patients with HT. Methyl-CpG-binding protein 2 (MECP2) was identified as the potential regulatory gene of lncRNA-XLOC_I2_006631 using a prediction program. The expression of MECP2 was increased and was positively correlated with the elevated expression levels of lncRNA-XLOC_I2_006631 and anti-thyroperoxidase antibody in patients with HT. Furthermore, lncRNA-XLOC_I2_006631 was able to regulate MECP2 expression in vitro. Receiver operating characteristic curve analysis suggested that lncRNA-XLOC_I2_006631 has a potential diagnostic value. Collectively, the present results indicated the important role of dysregulated lncRNAs in HT and demonstrated that lncRNA-XLOC_I2_006631 functioned as a positive regulator of MECP2 expression, suggesting a potential mechanism. Thus, lncRNA-XLOC_I2_006631 may be used as a biomarker of HT.

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