Guest guest Posted January 13, 2006 Report Share Posted January 13, 2006 Breast Implant: Dow Chem. Responsible ? USSW NEWS United Silicone Survivors of the World October 1996 Offical Journal - International Circulation Breast Implants: Is Dow Chemical Responsible ? SOURCE - The Consumer Law Page (The Law Firm) By - Access@... - phone: (408) 289-1776 - Fax: (408) 287-1776 Part 1 1943 Dow Corning Incorporation formed; - Dow Chemical agreed to provide; - technical expertise; plans, specifications, formulas, data, and information - Royalty-free licenses under all patents in the field of organo-silicone products - supplied Dow Corning with all with all newly discovered technical info until 1958 - undertook the responsibility for researching the bioreactivity of silicone compounds and continued to do so until as late as 1992 Dow Corning relied on Dow Chemical's expertise in the silicone field to such an extent that Dow Corning did not perform a single study on a breast implant before an implant was inserted into a woman's body. 1960's Dow Chemical entered into a secret agreement to develop a product line of pesticides and insecticides from components of the silicone gel used in Dow Corning's breast implants. 1966-1967 Dow Chemical and Dow Corning entered into a series of express joint agreements for the purpose of research, development, evaluation and commercialization of biologically active silicone compounds. - july 13, 1966, Dow Chemical entered a 'secrecy agreement...with Dow Corning on biological properties of silicones' - october 1, 1966, Dow Chemical entered into 'agreemnet..covering research and development in the field of physiological effects of certain organo-silicon compounds' - february 1, 1967, Dow Corning entered 'joint research agreement with Dow Chemical company pertaining to certain silicone products designated as DC-555; DC-555A, and compounds derived from and related thereto..' - (a) joint development agreement relating to the physiological effects resulting from ingestion or injection into the systems of animals or men of particular physiologically active silicones, wehrein in principle, the parties shaal jointly share the cost and shall share the profits and losses of any commercialization. - december 5, 1967, DowCorning entered into an agreement 'with the Dow Chemical Company providing for joint research, development, evaluation and commercialization programs on the physiological effects upon the systems of animals or man of physiological active organo-silicon compounds. For a periode of 9 yeras the Dow Bioscience Center performed numerous experiments into the biological and pharmacological effects of silicone compounds of breast implants on animals an humans. Research from these joint enterprises produced results that silicones were not bio-inert. This research was never published. When the first evidence of silicone bioreactivity was discovered in the California trial of Hopkins v. Dow Corning, hearings were convened by the FDA which resulted in the withdrawal of silicone gel implants from the market in 1992. 1965-1975 Scientists (Dow Corning and Dow Chemical) commonly and frequently exchanged knowledge and experience. Shared facilities to research the effects of low molecular weight organo-silicon compounds, like those found in both Dow Chemicals DC-555 fluid and Dow Cornings silicone gel breast implants. Dow Corning modeled its toxicology department after Dow Chemicals laboratory (letter from Dr. Groggin) - 1975, Dow Corning scientist, Dr. robbert Lake, presented research showing that silicone was not bio-inert at a joint conference between Dow Corning and Dow Chemicals scientists. An exchange of scientist from one corporation to the other occured through the entire time Dow Corning was in existence. - 1975, Dow Corning and Dow Chemical entered into a trademark Agreement. Dow Chemical admitted that it has " controlled...the quality of its [Dow Cornings] goods " since 1943. The agreement also provided - products manufactured, distributed and sold, shaal be of a nature and quality that is acceptable to Dow Company. When requested, associate companies shall.. submit specimens of its products to Dow Company and shall permit inspection of associate companies premises..to examine the quality of such products. 1989 Dow Chemical agreed to perform a " Good Laboratory Practice " audit on Dow Corning 1990 Dow Corning reached an agreement with Dow Corning to advise and consult them in toxicology laboratory practises and protocols 1948 A seminar Dow Chemical research report was published by two Dow Chemical employees, Dr. Rowe, and Dr. Spencer, incombination with Dow Corning employee, Dr. Bass, which declared silicone to be " biologically inert " . This placed Dow Chemical in an authoritative position as the leaer in silicone research. 1994 Seminars in Arthritis and Rheumatism explain bio-inertness importance. - ideal biocompatible materials are devoid of immunological, inflammayory, or toxic reactiosn, resist deterioration of host tissues or the biomaterial, limit alteration of host proteins, and are noncarcinogenic. Silcione was promoted for clinical application because it was thought to be biologically inert. ( Borenstein, Toxicology of Silicone). Part 2 - Safety Breast Implants: Dow Studies 1950 Dow Chemical and Dow Corning had performed studies whch demostrated toxic hazards associated with Dow Corning silicone. 1954-september Dr. Spencer of Dow Chemical reported that Dow Corning silica (this silica being the beginning and end prodcut of silicon gel) had " quite a high order of toxixity from dust inhalation " 1955 - march dr. T.K. Rowe of dow Chemical reported that Dow Corning Degussa Dust (fumed silica added in the elastomer shell to strengthen the implant) caused diffuse cellular infiltrates and fibrocystic changes in the lungs and organs of animals 1956 Dow Chemical learned that silicone used in breast implants was not bio-inert when Dow Chemical studied the biological effects of Octamethyleyclotetrasiloxane (D4). D4 became the building block of the gel used in silicone breast implants from the 1960s until they were taken off the market in 1992. The 1956 study found that the compound, if afministered orally or by intramuscular injection, led to traces of siloxane being found thorughout the bodies of laboratory animals. The study also found the compound caused a " slight initial weight loss and moderate liver pathology " . 1956 A Dow Chemical study determined that D4 had a biological effect on the eye and that contact would cuase painful and transient irritation of the conjunctival membranes. There were 9 seperate Dow Chemical reports of test results on Dow Corning Silicone Fluid. All indicate some irritation to the eyes and skin. One particular report indicates the silicone fluid caused hyperemia, edema, and general skin rawness in all cases. Some tests reported the biological effects of Dow Corning Fluid 360, which is " chemically the same silicone formula utilized in many aspects of breast implants " . 1956 Dow Chemical initiated a research project with the University of Miami, on behalf of Dow Corning. Dow Chemical determined the cost and what testing would be performed. When the results found that a Dow Corning silicone compound, Z-4141, caused fat or silicone deposits in the livers of laboratory rats, Dow Chemical (not Dow Corning) retested the results. The results of these re-tests indicated the deposits found in th rats' livers represented silicone, not fat. Although a final report published by the University of Miami referenced several employees at Dow Chemical, no mention was made of the Z-4141 compound. 1957 Dow Corning sent Dow Chemical reports that Dow Corning 200 Fluid was " absorbed through the skin by the adrenal and kidneys of a rabbit " . 1961 Dow Chemical tested Dow Corning's Fluid and found substantial difference in the fluid when it was heat treated. Specifically, the fluid caused death in all but one of the rats, apparently because of " irritation of the respiratory tract " . 1970 Dow Chemical discovered that Dow Corning 360 Fluid caused spontaneous death in several rats, pulmonary deposition and vacuoles (cavities) to develop in the liver, heart, kidney, spleen, pancreas, ovary, adrenal and stomach mucosa. 1975 Dr. Olson, a Dow Corning scientist newly transferred from Dow Chemical, reported that " if there is any leakage of the (breast implant), by diffusion, rupture, or by any means, some frequency of allergic reactions of patients will occur. In some cases, the problems posed are likely to be serious " . 1976 Employees of Dow Corning and Dow Chemical studied the effects of implantation on the physical properties of silicone rubber. The sutdy found that the subcutaneous implantation (as is performed in mammary augmentation or reconstruction) changed the physical properties of medical grade silicone rubber. Although it is clear that Dow Chemical knew as early as the 1950's that silicone used in breats implants was not biologically inert, neither Dow Chemical and Dow Corning ever published the results of any of this research. In fact, Dow chemical indicated just the opposite in the public - that silicone was bio-inert and safe for human use. In 1954 and again in 1959, Dow Chemical promoted the suitability of silicone products for medical uses. In october of 1974 products inserts indicated that silicone breast implants were " nonreactive in body tissue " . The General and Plastic Surgery Devices Panel, in a letter to the FDA which contains public information, declared that " although one pathologist had been widely quoted as claiming that he has found silicone in various organs of the body, we are not aware of any other medical professional who has observed this phenomenon " . Finally, in 1992, the CEO of Dow Chemical, Popoff, declared that Dow Corning's breast implants were " beyond reproach " . Quote Link to comment Share on other sites More sharing options...
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