On Tumor-Producing Chemical Substances*
نویسنده
چکیده
The following is a review of the studies carried out in this laboratory during the past seven or eight years with the view of (a) elucidating the effect of certain exogenous tumor-producing chemical agents and (b) ascertaining the presence within the human body of chemical substances that may call forth the formation of tumors. The present review is based in the main on the results obtained by the author and his associates; data from the literature will be only occasionally mentioned.
منابع مشابه
Study of Anti-fungal Effects of Isolated streptomyces sp. from Gorgan Areas
Abstract Bachground and objectives:Streptomyces is the most important genus in Actinomycetes family.The Streptomycetes are widely used in industry producing numerous chemical compounds including antibiotics, enzymes and anti- tumor agents. The aim of this study was to isolate soil-borne Streptomyces producing antimicrobial substances from soil of Golestan province of Iran and to survey anti-fun...
متن کاملPhenomer on of Local Skin Reactivity to Serratia
Bacterial filtrates capable of producing the phenomenon of local tissue reactivity also elicit hemorrhagic necrosis and regression of transplantable malignant tumors. The destruction of the tumors is obtained by a single intravenous injection, no preparatory intratumoral injection being necessary (25a, 11, 26, 7, 3, 23, 10, and others). There exists considerable evidence that the same bacterial...
متن کاملPhenomer on of Local Skin Reactivity to Serratia rnarcescens (B. Prodigiosus)
Bacterial filtrates capable of producing the phenomenon of local tissue reactivity also elicit hemorrhagic necrosis and regression of transplantable malignant tumors. The destruction of the tumors is obtained by a single intravenous injection, no preparatory intratumoral injection being necessary (25a, 11, 26, 7, 3, 23, 10, and others). There exists considerable evidence that the same bacterial...
متن کاملProperties of the Causative Agent of a Chicken Tumor
The fractionation of active chicken tumor extracts has been continued. 1. By a rapid method of dialysis the diffusible fraction of the treated extract, representing about 75 per cent of the solids, has been eliminated without reducing the tumor-producing activity. 2. Combined methods of fractionation have resulted in the elimination of as much as 95 per cent of the total solids of the extract a...
متن کاملProgesterone Producing Granulosa Cell Tumor: a Case Report
The granulosa cell tumor is the most common malignant functioning tumor of the ovary. When functional, granulosa tumor almost always are estrogenic although rare tumors are androgenic. Progesterone producing by these tumors has only been reported twice. We report a case of granulosa cell tumor in a 7 years old girl with precocious puberty who represent the first case of progesterone producing b...
متن کامل