Genetic testing for cancer: Is it worth it?
Genetic testing can analyze the genetic mutation of tumor cells by extracting the patient's genetic information, including whether there are certain specific oncogenes, drug metabolism-related genes, etc. This information is crucial for the diagnosis, prognosis assessment and formulation of treatment plans for tumors. Cancer gene testing is reliable, especially in regular genetic testing companies, which are qualified genetic testing companies. At present, genetic testing for cancer is being carried out because the onset of tumors, especially malignant tumors, is closely related to gene mutation or gene deletion. Malignant tumors are genetic diseases. If the pathogenic gene is found, a breakthrough can be achieved through targeted treatment of the pathogenic gene. At present, in non-small cell lung cancer, melanoma, acute leukemia, lymphoma and other malignant tumors, there are corresponding gene mutations and targeted drugs for mutations. The use of targeted drugs significantly improves the patient's PFS time and total survival time compared with the original treatment methods. Therefore, genetic testing is a prerequisite for tumor treatment. Genetic testing must be done before using targeted drugs, and corresponding targeted drugs can be used only when there are corresponding targets.
Genetic testing may not be recommended in the following situations:
Suitable Populations for Genetic Testing
Individuals with a Family History of Cancer
Patients Diagnosed with Cancer
- Guiding Targeted Therapy: Gene mutations in certain cancers (e.g., lung cancer, breast cancer) (e.g., EGFR, HER2) may affect the selection of targeted drugs.
- Assessing Chemotherapy Sensitivity: Mutations in some genes (e.g., UGT1A1) may affect the metabolism of chemotherapy drugs, helping to adjust dosage or regimen.
- Clarifying Cancer Subtype: For example, using MSI (microsatellite instability) testing to determine if colorectal cancer is suitable for immunotherapy.
Patients with Rare or Complex Cancers
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HealthClimate Change Is Causing Seasonal Allergy Surges
Seasonal allergies are usually caused by pollen, dust mites, temperature changes, UV exposure, and other factors, and are a manifestation of allergic reactions. "Summer and autumn pollen is closely related to asthma. Some patients develop asthma in late July, and their symptoms only completely subside after the temperature drops." Climate change exacerbates allergies and asthma. Climate change leads to increased exposure to environmental allergens, such as increased greenhouse gases, rising global temperatures, and increased pollutants. Another factor is the influence of microorganisms. For example, the skin and nasal microbiota of young Russians are more diverse than those of Finnish populations, and microorganisms can guide gene activation and epigenetic adaptation. Another hypothesis is the epithelial barrier hypothesis, which posits that individuals with impaired epithelial barrier function often experience inflammatory responses within their epithelial cells, releasing various alarm signals that attract pro-inflammatory cell aggregation. The immune mechanisms leading to epithelial barrier dysfunction primarily involve type 2 immune responses, ultimately resulting in the formation of an allergic sensitization state and the occurrence of allergic reactions.
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HealthYour Mind Affects Your Body More Than You Think
"I am getting better and better every day." Some people recite this sentence several times every day when they wake up and before going to bed. For them, this sentence is not a flowery expression, but a statement that health comes from a positive attitude. When it comes to health, many people experience that a positive attitude will bring benefits to physical health, while a negative attitude may cause illness. It is dangerous for a person to have negative thoughts. In real life, there are examples everywhere of people who have harmed their health because of their inner frustration, hatred, fear or guilt. Therefore, to maintain physical health, we must first get rid of unhealthy thoughts. We must cleanse our minds and get rid of negative thoughts in our hearts for the sake of physical health. Resentment and dissatisfaction often cause illness. If a person is repeatedly frustrated in his job, his mind will send a psychological hint of "sickness" to the body to escape reality.
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HealthIs sleep more important than diet?
Maintaining healthy eating habits, regular physical exercise, and adequate quality sleep are key factors in maintaining good health. There is a two-way relationship between healthy eating and sleep. Dietary structure directly affects sleep quality; for example, high-sugar, high-fat, or caffeinated foods can disrupt sleep. Simultaneously, insufficient sleep can trigger hormonal changes, leading to abnormal appetite and metabolic disorders, creating a vicious cycle. Melatonin synthesis, blood sugar stability, and gut health are key factors linking the two.
