What experimental CRC model in mice?4 answersExperimental colorectal cancer (CRC) models in mice include carcinogen-induced models (CIMs), genetically engineered mouse models (GEMMs), periodontitis-induced models, and xenograft models. CIMs are valuable for studying colitis-related carcinogenesis and chemoprevention, while GEMMs help evaluate the tumor microenvironment and immune responses, aiding in the discovery of novel therapies. Periodontitis-induced models, such as ligature-induced periodontitis, have been shown to promote CRC by reshaping the microbiota and suppressing the immune response. Additionally, xenograft models, like patient-derived xenografts (PDX), are reliable for preclinical drug development due to their retention of pathological and molecular characteristics. These diverse murine models play crucial roles in advancing our understanding and treatment of CRC.
How can flouroquinalones affect crc?5 answersFluoroquinolones can affect the quality characteristics and oxidation stability of cooked and raw beef burger. They can also affect the physicochemical composition, pH, cooking parameters, color, and texture characteristics of the burger. In addition, the addition of quinoa flour, which contains polyphenols, can affect dough stability and optimum mixing time in wheat flour. Quinoa flour can also contribute to postacidification of fermented milk during storage. Furthermore, the addition of quinoa bran to gluten-free bread can improve its volume, pore size, and sensory acceptance. Quinoa flour can also enhance the properties of gluten-free bread, such as physicochemical properties, rheological properties, and microstructure. However, further research is needed to determine the specific effects of fluoroquinolones on CRC, as this information is not provided in the abstracts.
How are corticosteroids used in cancer patients?5 answersCorticosteroids are commonly used in oncology for various indications, including refractory symptoms, anti-cancer effects, supportive measures for cancer-specific treatments, and management of immune-related adverse events induced by immunotherapies. They are often prescribed as first-line treatments in oncological emergencies due to their rapid effect and wide range of actions. While preclinical studies suggest that corticosteroid-induced immunosuppression may dampen the activity of immunotherapies, clinical studies show that corticosteroid use does not significantly alter patient response to immunotherapies. Corticosteroids are also commonly used to manage cancer-related symptoms and improve quality of life in advanced cancer patients. Additionally, corticosteroids have been investigated in combination with cancer chemotherapy, with certain glucocorticoid receptor modulators showing potential benefits in treating cancer. Overall, corticosteroids play a crucial role in the management of cancer patients, providing symptom relief, supportive care, and addressing specific treatment-related issues.
What are the side effects of corticosteroids in cancer patients?5 answersCorticosteroids are commonly used in cancer patients and can lead to various side effects. Neurological complications can arise as a result of corticosteroid use, as well as from other supportive care medications used in oncology. These complications can have a significant impact on patient quality of life. Adverse events associated with corticosteroid use include nausea and vomiting, dyspepsia, hyperglycemia, oral candidiasis, and proximal myopathy. Corticosteroids have also been associated with neuropsychiatric toxicity, ranging from insomnia and cognitive impairment to severe mental disorders such as mania, psychosis, and severe depression. The optimal treatment and prevention of steroid-induced mental disorders in cancer patients is still unclear due to a lack of evidence. It is important for clinicians to be aware of these potential side effects and to actively manage and minimize their occurrence.
What is the range of CRP serum concentrations in tumour tissues of colorectal cancer patients?4 answersThe range of CRP serum concentrations in tumour tissues of colorectal cancer patients varies. One study found that CRP levels were significantly higher in patients with inoperable tumours compared to those who had undergone complete surgery. Another study reported that CRP concentration evaluation may have an advantage as a prognostic biomarker in colorectal cancer patients, as it reflects clinicopathological features of the tumour. Additionally, a study found that an elevated preoperative serum CRP level was associated with a poor prognosis in patients with stage IV colorectal cancer. However, the specific range of CRP serum concentrations in tumour tissues was not mentioned in any of the abstracts provided.
Can Covid vaccine be given while on prednisone?6 answers