电离毒的理论及辨治内涵探讨

电离辐射是一种新的致病因素,临床中可导致放射性损伤。该文根据其致病特点,与“毒邪”理论相融合,创造性提出“电离毒”的概念,并总结归纳出其具有隐伏、特异、传舍、可变、复杂五种致病特性。相应地提出防治结合,先证而治;以证带病,病证结合;扶正祛邪,分期而治;多法齐举,灵活辨证等治疗原则,以期为放射性损伤的中医辨治提供思路和方法。

试论急性辐射损伤的中医学病因——电离毒

急性辐射损伤是近现代才突现的一种疾病,目前中医药对其辨证论治缺乏规范,研究认为引起急性辐射损伤的电离辐射是一种毒邪,又因其具有自身特殊性,故将其命名为电离毒。电离毒致病,起病急骤、损伤严重、治疗困难,与传统之温毒、光毒有明显不同,与火毒致病在感邪方式、致病趋向以及病程预后等方面亦有本质区别。深入认识电离毒的概念和致病的机理与特点,有利于充分发挥中医药防治由电离毒引起的急性辐射损伤的优势。

论急性放射损伤的中医学病因:电离辐射毒

急性放射损伤是近现代才出现的一种病症,目前中医对其尚缺乏规范的认识。因其具有外袭性、起病急、热象明显、易伤阴动血等特点,所以笔者认为其属于中医温病范畴。而引起急性放射损伤的电离辐射则应为一种温热毒邪,又因其具有独特的地方,故将其命名为电离辐射毒。电离辐射毒发病条件单一,致病暴烈,易直中中焦与肾精,毒邪若盛则机体损伤严重,治疗困难,甚至形成恶性病变。文章深入探讨了电离辐射毒的概念和致病特点,有利于更好地运用中医药对其进行防治。

Tissue toxicity induced by ionizing radiation to the normal intestine:Understanding the pathophysiological mechanisms to improve the medical management

At the present time, more than one-half of all cancer patients are treated with radiation therapy. Despite a good therapeutic index, radiotherapy can disable normal tissue injury to normal tissues in long-term cancer survivors.Thus, an important challenge to modern radiation therapy is to increase the tolerance of normal tissues,

Effect of Electrolyte on the Dissolution of Aluminum from Acid Soils and the Distribution of Aluminum Forms inSoil Solution

KCl, CaCl2, NH4Cl, NaCl, K2SO4 and KF solutions were used for studying the effects of canons and anions on the dissolution of aluminum and the distribution of aluminum forms respectively. Power of exchanging and releasing aluminum of four kinds of canons was in the decreasing order Ca2+ >K+ >NH+4 >Na+.The dissolution of aluminum increased with the canon concentration. The adsorption affinity of various soils for aluminum was different. The aluminum in the soil with a stronger adsorption affinity was difficult to be exchanged and released by canons. The Al-F complexes were main species of inorganic aluminum at a low concentration of canons, while Al3+ became major species of inorganic aluminum at a high concentration of canons. The results on the effect of anions indicated that the concentrations of total aluminum, three kinds of inorganic aluminum (Al3+, Al-F and Al-OH complexes) and organic aluminum complexes (Al-OM)when SO2-4 was added into soil suspension were lower than those when Cl- was added. The dissolution of aluminum from soils and the distribution of aluminum forms in solution were edicted by the adsorption of Fon the soil. For soils with strong affinty for F- , the concentrations of the three inorganic aluminum species in soil solution after addition of F- were lower than those after addition of Cl-; but for soils with weak affinity for F- , the concentrations of Al3+ and Al-OM were lower and the concentrations of Al-F complexes and total inorganic aluminum after addition of F- were higher than those after addition of Cl-. The increase of F- concentration in soil solution accelerated the dissolution of aluminum from soils.