Abstract: Although compounds for treating or ameliorating malignant diseases have been proposed, patients had to endure a large burden since many of such compounds could not be orally ingested. Mangiferin has an effect of ameliorating malignant diseases through oral ingestion. However, such effect is minor and realistically it was not easy to ingest mangiferin. Further, in order to develop more effective pharmaceutical agents and the like for treating malignant diseases, it has been considered constantly necessary to obtain new or improved forms of an existing medical agent for inhibiting kinases such as NIK. Compounds represented by formula (1), formula (2), formula (3), formula (4), formula (5), formula (6), formula (7), formula (8), formula (9), formula (10), formula (11), and formula (12) have an effect of ameliorating malignant diseases through oral ingestion, and can exhibit said effect with an amount less than that for mangiferin.

Abstract: [Problem] COVID-19 caused by coronavirus SARS-CoV-2, cytokine release syndrome, cytokine release syndrome with CAR (chimeric antigen receptor)-T therapy, sepsis, systemic inflammatory response syndrome, hemophagocytic syndrome, macrophage activation syndrome, influenza, GVHD, systemic vasculitis, Kawasaki disease, Takayasu arteritis, and other diseases, if severe, can cause acute respiratory distress syndrome, disseminated intravascular coagulation syndrome, acute circulatory insufficiency, multi-organ failure, and other symptoms which are one of the causes of death. [Solution to Problem] Compounds represented by formulas (1) to (4) are effective when taken orally and can be expressed in smaller amounts than mangiferin.

Abstract: There are no drugs or food medicines that can prevent or ameliorate, among side effects caused by drugs, particularly peripheral neuropathy that is caused by anticancer drugs such as oxaliplatin. An agent for preventing or ameliorating peripheral neuropathy including at least one selected from xylitol, L-talitol, and D-threitol as an active ingredient can ameliorate tingling limbs, limb pain, decreased deep tendon reflexes, muscle weakness, allodynia, hyperalgesia, hand fine motor skill disability, gait disturbance, stumbling, falling, flexion impairment (difficulty or inability to sit on one's knees, cross-legged, sideways, in a chair, etc.), limb paralysis, or the like, induced by drugs such as anticancer drugs or diabetes.

Abstract: No drug has been available for treating a peripheral sensory neuropathy caused as a side effect by a drug, in particular, by an anticancer drug such as oxaliplatin. A composition for ameliorating peripheral sensory neuropathy, which is characterized by including a Lentinus edodes mycelium extract, ameliorates symptoms induced by the drug such as the anticancer drug, including numbness of extremities, a pain in extremities, a reduction in deep tendon reflection, a reduction in muscle force, allodynia, hyperalgesia, impaired finger fine movement, impaired walking, stumbling, falling, impaired flexion (being difficult or impossible to sit on one's heels, sit cross-legged, sit with one's legs out to one side, sit on a chair, or the like), or paralysis of extremities.

Abstract: No drug has been available for treating a peripheral sensory neuropathy caused as a side effect by a drug, in particular, by an anticancer drug such as oxaliplatin. A composition for ameliorating peripheral sensory neuropathy, which is characterized by including a Lentinus edodes mycelium extract, ameliorates symptoms induced by the drug such as the anticancer drug, including numbness of extremities, a pain in extremities, a reduction in deep tendon reflection, a reduction in muscle force, allodynia, hyperalgesia, impaired finger fine movement, impaired walking, stumbling, falling, impaired flexion (being difficult or impossible to sit on one's heels, sit cross-legged, sit with one's legs out to one side, sit on a chair, or the like), or paralysis of extremities.

Abstract: No drug has been available for treating a peripheral sensory neuropathy caused as a side effect by a drug, in particular, by an anticancer drug such as oxaliplatin. A composition for ameliorating peripheral sensory neuropathy, which is characterized by including a Lentinus edodes mycelium extract, ameliorates symptoms induced by the drug such as the anticancer drug, including numbness of extremities, a pain in extremities, a reduction in deep tendon reflection, a reduction in muscle force, allodynia, hyperalgesia, impaired finger fine movement, impaired walking, stumbling, falling, impaired flexion (being difficult or impossible to sit on one's heels, sit cross-legged, sit with one's legs out to one side, sit on a chair, or the like), or paralysis of extremities.