O engano da soja

Adaptação de Luis Guerreiro

Muitas pessoas viradas para hábitos alimentares saudáveis num esforço para melhorar a sua alimentação começam a comer tofu e outros produtos da soja em vez de carne ou de ovos. A indústria da soja quer nos fazer crer que esta é uma jogada inteligente para a sua saúde cardíaca, mas, na realidade a soja processada,incluindo o tofu, não é uma comida saudável. Nos meus anos de alimentação vegetariana fui eu próprio enganado, consumindo imenso produtos derivados da soja. A grande maioria dos sites dedicados ao vegetarianismo e veganismo continuam divulgando a soja como alternativa saudável e um substituto para a carne e outros produtos de origem animal. Porem imensos estudos provam que a soja não só não é alternativa como também é altamente prejudicial para a saúde.
Infelizmente a industria da soja é tão poderosa que consegue convencer inclusive nutricionistas a recomendarem os seus produtos como alimentos funcionais. Para isso fazem campanhas enormes junto desses profissionais de saúde, oferecem seminários e livros, etc, e conseguem que "prestigiados" professores de universidades publicas e privadas promovam o seu "lixo" comestivel.

A nivel ecológico, a soja é também responsável pelo desmatamento de imensas áreas e destruição de habitats das mais variadas espécies.

Segundo a Drª Kaayla T. Daniel, PhD (doutorada em Ciências Nutricionais e Terapias Anti-Envelhecimento), na Ásia, as pessoas comem pequenas quantidades de produtos soja integral, na comida ocidental a soja processada é separada em dois produtos - proteína e óleo. "Não há nada seguro ou natural nesses produtos," diz a Drª Kaayla.

"Hoje, os métodos da alta tecnologia de transformação falham, não só para remover os anti-nutrientes e toxinas que estão naturalmente presentes na soja, mas deixam resíduos tóxicos e cancerígenos criado pela alta temperatura, pressão alta, banhos ácidos e alcalinos, petróleo e solventes", ela continua .

A soja contém fitatos que bloqueiam a absorção mineral e inibidores de tripsina que bloqueiam a boa digestão.

O tofu é um melhoramento porque é um produto de soja integral, mas ele ainda contém os anti-nutrientes acima mencionados.Problemas de saúde ligados à soja.

Entre os muitos problemas de saúde ligados a uma alta dieta de soja são:

• Problemas da tiróide, incluindo o ganho de peso, letargia, mal-estar, fadiga, perda de cabelo, e perda de libido
• Puberdade prematura e outros problemas de desenvolvimento em bebês, crianças e adolescentes
• Câncer (cancro em Portugal)
• Dano cerebral
• Distúrbios reprodutivos
• Alergias

Entretanto, os estudos revisados pelo Drª. Kaayla e colegas constataram que a soja não é confiável para baixar o colesterol e os níveis de homocisteína, constatou-se que pode aumentar o risco de doença cardíaca, acidente vascular cerebral e defeitos congênitos.

Como resultado, ela e outros especialistas enviaram uma petição de 65 páginas ao FDA para pedir-lhes para retirarem a alegação de saúde que diz "a soja previne doenças cardíacas" que eles aprovaram em 1999.

É muito importante saber também que as crianças e bebês, que estão ainda em desenvolvimento, são particularmente vulneráveis à soja, e aos efeitos de seus hormônios (hormonas em Portugal) que imitam os dos seres humanos. Um estudo do Lancet mostrou que a exposição diária de lactentes aos químicos que imitam o estrogênio que consomem fórmulas (leite, etc) de soja foi de 6 a 11 vezes maior do que os adultos que consomem alimentos de soja.

E a concentração desses hormônios era de 13000 a 22000 vezes superior ao do estrogênio no sangue. Um bebé exclusivamente alimentado com fórmula de soja recebe o equivalente em estrogênicos (com base no peso corporal) de até cinco pílulas de controle nascimento por dia.

Então, por favor não alimente o seu bebé com fórmulas infantis de soja. Os efeitos são tão potentes que mesmo as mulheres grávidas devem evitar comer produtos de soja para a segurança de seu futuro filho.

E ainda há mais:

• Os feijões de soja são altos em toxinas naturais , também conhecidos como antinutrientes. Isso inclui uma grande quantidade de inibidores de enzimas que anulam as enzimas necessárias para a digestão. Além disso, estes inibidores de enzimas não são devidamente anulados pelo cozimento. O resultado é stress gástrico e distúrbios crônicos e deficiências na absorção de aminoácidos, que pode resultar em disturbios do pancreas e no perigoso câncer pancreático.

• A soja contem hemaglutininas, o que faz com que as células vermelhas se agreguem. A soja tem substancias que atrasam o crescimento, e se bem que estas substâncias sejam reduzidas na transformação, elas não são totalmente eliminadas.

• A soja contem contém bociogênico, que muitas vezes pode levar à depressão da função tiroidica

• A maioria da soja (80%) é geneticamente modificada, e contêm um dos mais elevados níveis de contaminação de agrotóxicos (pesticidas) de todos os alimentos.

• A soja tem indices muito elevados de fitatos, que impedem a absorção de minerais, incluindo cálcio, magnésio, ferro e zinco, que são co-fatores da bioquímica optimizada do corpo.

Algumas maneiras seguras de desfrutar da soja

Existem alguns tipos de produtos da soja que são saudáveis, e todos eles são fermentados. Após um longo processo de fermentação, o ácido fítico e os níveis de antinutrientes da soja são reduzidos, e as suas propriedades benéficas - como a criação de probióticos naturais - tornam-se disponíveis para o sistema digestivo.

A fermentação também reduz grandemente os níveis perigosos de isoflavonas, que são similares ao estrogênio na sua estrutura química, e podem interferir com a acção da produção do seu próprio estrogênio.

Então, se você deseja desfrutar da soja e comê-la sem prejudicar a sua saúde - e, de facto, ganhar benefícios na saúde - a seguir vão algumas opções saudáveis :

1. Natto, soja fermentada com uma textura pegajosa e forte, com sabor a queijo. É rico em nattokinase, um poderoso refinador do sangue.

Natto é a maior fonte de vitamina K2 sobre o planeta e é rica em bactérias Bacillus subtilis. Pode ser geralmente encontrado em qualquer supermercado asiático.

2. Tempeh, um bolo de soja fermentado com uma textura firme, com sabor a cogumelo.

3. Miso, uma pasta de soja fermentada com um sabor salgado, textura amanteigada (comumente usado em sopa miso).

4. Shoyu: tradicionalmente, molho de soja, é feito pela fermentação da soja, sal e enzimas, porém muito cuidado porque muitas variedades no mercado são feitas artificialmente utilizando um processo químico e contém caramelo (açucar).

Lembre-se, no entanto, que todos os produtos processados de soja - leite de soja, hambúrgueres de soja, queijo de soja, barras de soja energéticas, sorvete de soja, proteína de soja em pó, etc - não são saudáveis. E, para realmente evitar todos os tipos de produtos prejudiciais da soja, é preciso evitar alimentos processados porque a grande maioria deles contêm ingredientes da soja.

"A melhor- e talvez a única maneira de evitar completamente a soja na alimentação é comprar alimentos naturais e prepará-los em casa", diz a Drª Kaayla.

Mais de 100 estudos revelando os efeitos adversos das isoflavonas da soja

1953
Cheng C and others. Estrogenic Activity of Isoflavone Derivatives Extracted and Prepared from Soybean Meal. Science 1953;118:164-5.
1954
Carter M and others. Effect of Genistin on Reproduction of the Mouse. J Nutr 1954;55:639.
1956
Matrone G and others. Effect of Genistin on Growth and Development of the Male Mouse. J Nutr, 1956, 235-240.
1962
Wong E. Estrogenic Activity of Red Clover Isoflavones and Some of Their Degradation Products. J Endocrinology 1962;24:341-348.
1963
Magee AC. Biological Responses of Young Rats Fed Diets Contain Genistin or Genistein. J Nutr 1963;80:151.
1966
Folmon Y and others. The interaction in the Immature Mouse of Potent Estrogens with Coumestrol, Genistein and other Utero-Vaginotropic

Compounds of Low Potency. J Endrocrin 1966;34:215-225.
1967
Braden and others. The oestrogenic activity and metabolism of certain isoflavones in sheep. Australian Journal of Agricultural Research 1967, 18:335-348.
1972
Shutt DR. Steroid and Phytoestrogen Binding to Sheep Uterine Receptors in Vitro. J Endocrin 1972;52:299-305.
1972
Rackis JJ. Biological Effects. Soy Beans: Chemistry and Technology, AK Smith and SK Circle, eds. Avi Publishing, Inc. Westport, CT, 1972.
1975
Farnsworth NR and others. Potential Value of Plants as Anti-fertility Agents. J Pharm Sci.
1976
Chemical Carcinogens, MF Beringer, ed. American Chemical Society, pp 658 – 664.
1976
Leopold AS and others. Phytoestrogens: Adverse effects on reproduction in California Quail. Science, 1976 Jan 9;191(4222): 98-100.
1976
Kimura S and others. Development of malignant goiter by defatted soybean with iodine-free diet in rats. Gann 1976, 67:763-765.
1976
Shutt DR. The Effects of Plant Estrogens in Animal Reproduction. Endeavour 1976:110-113.
1976
Lindner HR. Occurrence of Anabolic Agents in Plants and their Importance. Environment Quality Supplement 1976;5:151-158.
1977
Hormonally Active Substances in Foods: A Safety Evaluation. Report #66. Council for Agricultural Science and Technology, Report #66 1977 Mar;66.
1978
Martin PM and others. Phytoestrogen interaction with estrogen receptors in human breast cancer cells. Endocrinology 1978 Nov;103(5):1860-7.
1980
Drane HM and others. Oestrogenic activity of soya-bean products. Food Cosmetics and Technology 1980 Aug;18(4):425-427.
1980
Mathieson R and Kitts W. Binding of Phytoestrogen and Estradiol 17-B by Cytoplasmic Receptors in the Pituitary Gland and Hypothalamus in the Ewe. J Endocrinol 1980;85:317-25.
1985
Jones and others. Naturally Occurring Estrogens in Food--A Review. Journal of Food Additives and Contamination 1985;2(2):73-106.
1985
Setchell KD. Non Steroidal Estrogens of Dietary Origin. Estrogens in the Environment, John A McLaughlin, ed. Elsevier, 1985:69-83.
1987
Hughes CI Jr. Effects of phytoestrogens on GnRH-induced luteinizing hormone secretion in ovariectomized rats. Reprod Toxicol 1987-88;1(3):179-81.
1987
Setchell, KD and others. Dietary estrogens - a Probable Cause of Infertility and Liver Disease in captive cheetahs. Gastroenterology Aug 93(2):225-233.
1989
Kaldas RS and Hughes CL Reproductive and General Metabolic Effects of Phytoestrogens in Mammals. Reprod Toxicol 1989;3:81-89
1989
Markovitz J and others. Inhibitory Effects of the Tyrosine Kkinase Inhibitor Genistein on Mammalian DNA Topoisomerase II. Cancer Res 1989 Sep 15;49(18):5111-7.
1989
Jones AE. Development and Application of High Performance Chromatographic Method for the Analysis of Phytoestrogens. Jour Sci Food Agric 1989;46:157-164.
1990
Yamashita Y and others. Induction of Mammalian Topisomerase II Dependent DNA Cleavage by Nonintercalative Flavonoids, Genistein and Orobol. Biochem Pharmacol 1990 Feb 15;39(4):737-44.
1991
Y Ishizuki and others. The Effects on the Thyroid Gland of Soybeans Administered Experimentally in Healthy Subjects. Nippon Naibunpi Gakkai Zasshi 1991, 767: 622-629.
1991
Pelissero C and others. Estrogenic Effect of Dietary Soy Bean Meal on Vitellogenesis in Cultured Siberian Sturgeon Acipenser baeri. Gen Comp Endocrinol 1991 Sep;83(3):447-57 83:447-457.
1991
O'Dell TJ and others. Long-term Potentiation in the Hippocampus is Blocked by Tyrosine Kinase Inhibitors. Nature 1991 Oct; 353(6344):558-60.
1991
Atluru S and Atluru D. Evidence that Genistein, a Protein-tyrosine Kinase Inhibitor, Inhibits CD28 Monoclonal-antibody-stimulated Human T cell proliferation. Transplantation 1991 Feb;51(2):448-50.
1992
Bulletin de L'Office Federal de la Santé Publique, No 28, July 20, 1992.
1992
Mayr U. Validation of Two In Vitro Test Systems of Estrogenic Activities with Zearelenone, Phytoestrogens and Cereal Extracts. Toxicology 1992;72:135-149.
1992
Traganos F and others. Effects of genistein on the growth and cell cycle progression of normal human lymphocytes and human leukemic MOLT-4 and HL-60 cells. Cancer Res 1992 Nov 15;52(22):6200-8.
1993
McCabe MJ Jr and Orrenius S. Genistein induces apoptosis in immature human thymocytes by inhibiting topoisomerase-II. Biochem Biophys Res Commun 1993; 194(2):944-50.
1993
Nicklas RB and others. Odd chromosome movement and inaccurate chromosome distribution in mitosis and meiosis after treatment with protein kinase inhibitors. J Cell Sci 1993 Apr;104 part 4:961-73.
1994
Cassidy A and others. Biological Effects of a Diet of Soy Protein Rich in Isoflavones on the Menstrual Cycle of Premenopausal Women. Am J Clin Nutr 1994 Sep;60(3):333-340
1994
Packer AI and others. The ligand of the c-kit receptor promotes oocyte growth. Dev Biol 1994 Jan;161 (1):194-205.
1994
Watanabe S and others. Hepatocyte Growth Factor Accelerates the Wound Repair of Cultured Gastric Mucosal Cells. Biochem Biophys Res Comm 1994;199(3).
1994
Setchell KD and others. Nonsteroidal estrogens of dietary origin: possible roles in hormone-dependent disease. Am J Clin Nutr 1984 Sep;40:569-78.
1994
Santti R and others. Developmental estrogenization and prostatic neoplasia. Prostate 1994;24(2):67-78.
1995
Keung WM. Dietary estrogenic isoflavones are potent inhibitors of B-hydroxysteroid dehydrogenase of P testosteronii. Biochem Biophys Res Commun 1995 Oct 24; 215(3):1137-1144.
1995
Makela SI and others. Dietary Soybean May Be Antiestrogenic in Male Mice. J Nutr 1995 Mar;125(3):437-45.
1995
Makela SI and others. Estogen-specific 17 beta-hydroxysteroid oxidoreductase type 1 (E.C.1.1.1.62) as a possible target for the action of phytoestrogens. Proc Soc Exp Biol Med 1995 Jan;208(1):51-9.
1995
Woodhams DJ. Phytoestrogens and parrots: The anatomy of an investigation. Proceedings of the Nutrition Society of New Zealand. 1995, 20:22-30.
1995
Irvine C and others. The Potential Adverse Effects of Soybean Phytoestrogens in Infant Feeding. New Zealand Medical Journal. 1995 May 24:318.
1995
Robertson IGC. Phytoestrogens: Toxicology and Regulatory Recommendations. Proc Nutr Soc of NZ 1995;20:35-42.
1996
Petrakis NL and others. Stimulatory influence of soy protein isolate on breast secretion in pre-and postmenopausal women. Cancer Epidemiol Biomarkers Prev 1996 Oct;5(10):785-794.
1997
Dees C and others. Dietary estrogens stimulate human breast cells to enter the cell cycle. Environ Health Perspect 1997 Apr;105 (Suppl 3):633-636.
1997
Kulling SE and Metzler M. Induction of Micronuclei, DNA Strand Breaks and HPRT mutations in cultured Chinese hamster V79 cells by the phytoestrogen coumoestrol. Food Chem Toxicol 1997 Jun; 35(6):605-13.
1997
Wang C and Kurzer MS. Phytoestrogen concentration determines effects on DNA synthesis in human breast cancer cells. Nutr Cancer 1997;28(3):236-47.
1997
Connolly JM and others. Effects of dietary menhaden oil, soy, and a cyclooxygenase inhibitor on human breast cancer cell growth and metastasis in nude mice. Nutr Cancer 1997;29(1):48-54.
1997
Wang C and Kurzer MS. Phytoestrogen concentration determines effects on DNA synthesis in human breast cancer cells. Nutr Cancer 1997;28(3):236-47.
1997
Anderson D and others. Effect of various genotoxins and reproductive toxins in human lymphocytes and sperm in the Comet assay. Teratog Carcinog Mutagen 1997;17(1):29-43.
1997
Rao CV and others. Enhancement of experimental colon cancer by genistein. Cancer Res 1997 Sep 1;57(17):3717-22.
1997
Divi RL and others. Antithyroid Isoflavones from the Soybean. Biochem Pharmacol 1997 Nov 15; 54:1087-96.
1997
Setchell KD and others. Exposure of infants to phyto-oestrogens from soy-based infant formula. Lancet 1997;3530(9070):23-27.
1998
Sheehan DM. Herbal medicines, phytoestrogens and toxicity:risk:benefit considerations. Proc Soc Exp Biol Med 1998 Mar;217(3):379-85.
1998
Strauss L and others. Dietary phytoestrogens and their Role in Hormonally Dependent Disease. Toxicol Lett 1998 Dec 28;102-103:349-54.
1998
Morris SM and others. p53, mutations, and apoptosis in genistein-exposed human lymphoblastoid cells. Mutat Res 1998 Aug 31;405(1):41-56.
1998
Santti R and others. Phytoestrogens: Potential Endocrine Disrupters in Males. Toxicol Ind Health 1998 Jan-Apr;14(1-2):223-37.
1998
Cheek AO and others. Environmental Signalling: a biological context for endocrine disruption. Environ Health Perspect 1998 Feb;106 suppl 1:5-10.
1998
Setchell KD and others. Isoflavone content of infant formulas and the metabolic fate of these early phytoestrogens in early life. Am J Clin Nutr 1998 Dec;68(6 Suppl):1453S-1461S.
1998
McMichael-Phillips DF and others. Effects of soy-protein supplementation on epithelial proliferation in the histologically normal human breast. Am J Clin Nutr 1998 Dec;68(6 Suppl):1431S-1435S.
1998
Strauss and others. Genistein exerts estrogen-like effects in make mouse reproductive tract. Mol Cell Endocrinol 1998 Sept 25;144(1-2):83-93.
1998
Irvine CH and others. Daily intake and urinary excretion of genistein and daidzein by infants fed soy- or dairy-based infant formulas. Am J Clin Nutr 1998 Dec;68(6 Suppl):1462S-1465S.
1999
Casanova M and others. Developmental effects of dietary phytoestrogens in Sprague-Dawley rats and interactions of genistein and daidzein with rat estrogen receptors alpha and beta in vitro. Toxicol Sci 1999 Oct;51(2):236-44.
1999
Fisher JS and others. Effect of neonatal exposure to estrogenic compounds on development of the excurrent ducts of the rat testis through puberty to adulthood. Environ Health Perspect 1999 May;107(5):397-405.
1999
Pan Y and others. Effect of estradiol and soy phytoestrogens on choline acetyltransferase and nerve growth factor mRNAs in the frontal cortex and hippocampus of female rats. Proc Soc Exp Biol Med 1999 Jun;221(2):118-25.
1999
Kulling SE and others. The phytoestrogens coumoestrol and genistein induce structural chromosomal aberrations in cultured human peripheral blood lymphocytes. Arch Toxicol 1999 Feb;73(1):50-4.
1999
Abe T. Infantile leukemia and soybeans--a hypothesis. Leukemia 1999 Mar;13(3)317-20.
1999
Hilakavi-Clarke and others Exposure to genisten during pregnancy increases carcinogen-induced mammary tumorigenesis in female rat offspring. Oncol Rep 1999 Sep-Oct;6(5):1089-95.
1999
Nagata C and others. Hot flushes and other menopausal symptoms in relation to soy product intake in Japanese women. Climacteric 1999 Mar;2(1):6-12.
2000
Gee JM and others. Increased induction of aberrant crypt foci by 1,2-dimethylhydrazine in rats fed diets containing purified genistein or genistein-rich soya protein. Carcinogenesis 2000 Dec;21(12):2255-9.
2000
Cassanova N and others. Comparative effects of neonatal exposure of male rats to potentand weak (environmental) estrogens on spermatogenesis at puberty and the relationship to adult testis size and fertility: evidence for stimulatory effects of low estrogen levels.
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2000
Watanabe S and others. Effects of isoflavone supplement on healthy women. Biofactors 2000;12(1-4):233-41.
2000
Yang J and others. Influence of perinatal genistein exposure on the development of MNU-induced mammary carcinoma in female Sprague-Dawley rats. Cancer Lett 2000 Feb 28;149(1-2):171-9.
2000
Salti GI and others. Genistein induces apoptosis and topoisomerase II-mediated DNA breakage in colon cancer cells. Eur J Cancer 2000 Apr;36(6):796-802.
2000
Lephard ED and others. Phytoestrogens decrease brain calcium-binding proteins but do not alter hypothalamic androgen metabolizing enzymes in adult male rats. Brain Res 2000 Mar 17;859(1):123-31.
2000
Strick R and others. Dietary bioflavonoids induce cleavage in the MLL gene and may contribute to infant leukemia. Proc Natl Acad Sci USA 2000 Apr 25;97(9):4790-5.
2000
Chang HS and Doerge DR. Dietary genistein inactivates rat thyroid peroxidase in vivo without an apparent hypothyroid effect. Toxicol Appl Pharmacol 2000 Nov 1;168(3):244-52.
2000
Gee JM and others. Increased induction of aberrant crypt foci by 1,2-dimethylhydrazine in rats fed diet containing purified genistein or genistein-rich soya protein. Carcinogenesis 2000;21:2255-2259.
2000
Ikeda T and others. Dramatic synergism between excess soybean intake and iodine deficiency on the development of rat thyroid hyperplasia. Carcinogenesis 2000 Apr;21(4):707-13.
2000
Nagata C and others. Inverse association of soy product intake with serum androgen and estrogen concentrations in Japanese men. Nutr Cancer 2000;36(1):14-8.
2000
Chang HC and others. Mass Spectrometric determination of Genistein tissue distribution in diet-exposed Sprague-Dawley rats. J Nutr 2000 Aug;130(8):1963-70
2000
Flynn KM and others. Effects of genistein exposure on sexually dimorphic behaviors in rats. Toxicol Sci 2000 Jun;55(2):311-9.
2000
Habito RC and others. Effects of replacing meat with soyabean in the diet on sex hormone concentrations in healthy adult males. Br J Nutr 2000 oct;84(4):557-63.
2000
Pino AM and others. Dietary isoflavones affect sex hormone-binding globulin levels in postmenopausal women. J Clin Endocrinol Metab 2000;85:2797-2800.
2000
Quella SK and others. Evaluation of soy phytoestrogens for the treatment of hot flashes in breast cancer survivors: A North Central Cancer Treatment Group Trial. J Clin Oncol 2000 Mar;18(5):1068-1074.
2000
Kotsopoulos D and others. The effects of soy protein containing phytoestrogens on menopausal symptoms in postmenopausal women. Climacteric 2000 Sep;3(3):153-4.
2000
Messina M. soyfoods and soybean phyto-oestrogens (isoflavones) as possible alternatives to hormone replacement therapy. Eur J Cancer. 2000 Sep ;36 Suppl 4 :271-2.
2001
Badger TM and others. Developmental effects and health aspects of soy protein isolate, casein and whey in male and female rats. Int J Toxicol 2001 May-Jun;20(3);165-74.
2001
Doerge DR and others. Placental transfer of the soy isoflavone genistein following dietary and gavage administration to Sprague Dawley rats.Reprod Toxicol 2001 Mar-Apr;15(2):105-10.
2001
Newbold RR and others. Uterine adenocarcinoma in mice treated neonatally with genistein. Cancer Res 2001 Jun 1;61(11):4325-8.
2001
Declos KB and others. Effects of dietary genistein exposure during development on male and female DC (Sprague-Dawley) rats. Reprod Toxicol 2001 Nov;15(6):647-63.
2001
Thigpen JE and others. Effects of the dietary phytoestrogens daidzein and genistein on the incidence of vulvar carcinomas in 129/J mice. Cancer Detect Prev 2001;25(6):527-32.
2001
de Lemos ML. Effects of soy phytoestrogens genistein and daidzein on breast cancer growth. Ann Pharmacother 2001 Sep;35(9):118-21.
2001
Ju YH and others. Physiological concentrations of dietary genistein dose-dependently stimulate growth of estrogen-dependent human breast cancer (MCF-7) tumors implanted in athymic nude mice. J Nutr 2001 Nov;131(11):2957-62.
2001
Zhang QH and others. Inhibitory effect of genistein on the proliferation of the anterior pituitary cells of rats. Sheng Li Xue Bao 2001 Feb;53(1):51-4.
2001
Nagao T and others. Reproductive effects in male and female rats of neonatal exposure to genistein. Reprod Toxicol 2001 Jul-Aug;15(4):399-411.
2001
Slikker W Jr and others. Gender-based differences in rats after chronic dietary exposure to genistein. Int J Toxicol 2001 May-Jun;20(3):175-9.
2001
den Tonkelaar I and others. Urinary phytoestrogens and postmenopausal breast cancer risk. Cancer Epidemiol Biomarkers Prev 2001 Mar;10(3):223-8.
2001
Bennetau-Pelissero C and others. Effect of genistein-enriched diets on the endocrine process of gametogenesis and on reproduction efficiency of the rainbow trout Oncorhynchus mykiss. Gen Comp Endocrinol 2001 Feb;121(2):173-87.
2001
Patisual HB and others. Soy isoflavone supplements antagonize reproductive behavior and estrogen receptor alpha- and beta-dependent gene expression in the brain. Endocrinology 2001 Jul;142(7):2946-52.
2001
Whitten PL and Patisaul HB. Cross-species and interassay comparisons of phytoestrogen actions. Environ Health Perspect 2001 Mar;109 Suppl 1:5-20.
2001
Shibayama T and others. Neonatal exposure to genistein reduces expression of estrogen receptor alpha and androgen receptor in testes of adult mice. Endocr J 2001 Dec;48(6):655-63.
2001
Lephart ED and others. Dietary soy phytoestrogen effects on brain structure and aromatase in Long-Evans rats. Neuroreport 2001 Nov 16;12(16):3451-5.
2001
Allred CD and others. Soy diets containing varying amounts of genistein stimulate growth of estrogen-dependent (MCF-7) tumors in a dose-dependent manner. Cancer Res 2001 Jul 1;61(13):5045-50.
2001
Allred CD and others. Dietary genistin stimulates growth of estrogen-dependent breast cancer tumors similar to that observed with genistein. Carcinogenesis 2001 Oct;22(10):1667-73.
2001
St. Germain A and others. Isoflavone-rich or isoflavone-poor soy protein does not reduce menopausal symptoms during 24 weeks of treatment. Menopause 2001 Jan-Feb;8(1):17-26.
2002
Jefferson W and others. Assessing estrogenic activity of phytochemicals using transcriptional activation and immature mouse uterotrophic responses. J Chromatogr B Analyt Technol Biomed Life Sci 2002 Sep 25;777(1-2):179.
2002
Kulling S and others. Oxidative metabolism and genotoxic potential of major isoflavone phytoestrogens. J Chromatogr B Analyt Technol Biomed Life Sci 2002 Sep 25;777(1-2):211.
2002
Doerge D and Chang H. Inactivation of thyroid peroxidase by soy isoflavones, in vitro and in vivo. J Chromatogr B Analyt Technol Biomed Life Sci 2002 Sep 25;777(1-2):269.
2002
Whitehead SA and others. Acute and chronic effects of genistein, tyrphostin and lavendustin A on steroid synthesis in luteinized human granulosa cells. Hum Reprod 2002 Mar;17(3):589-94.
2002
Foster WG and others. Detection of phytoestrogens in samples of second trimester humanamniotic fluid. Toxicol Lett 2002 Mar 28;129(3):199-205.
2002
Klein SL and others. Early exposure to genistein exerts long-lasting effects on the endocrine and immune systems in rats. Mol Med 2002 Nov;8(11):742-9.
2002
Silva E and others. Something from "nothing"--eight weak estrogenic chemicals combined at concentrations below NOECs produce significant mixture effects. Environ Sci Technol 2002 Apr;36(8):1751-6.
2002
Doerge DR and DM Sheehan. Goitrogenic and estrogenic activity of soy isoflavones. Environ Health Perspect 2002 Jun;110 suppl 3:349-53.
2002
Ju YH and others. Dietary genistein negates the inhibitory effect of tamoxifen on growth of estrogen-dependent human breast cancer (MCF-7) cells implanted in athymic mice. Cancer Res 2002 May 1;62(9):2474-7.
2002
Guo TL and others. Genistein modulates splenic natural killer cell activity, antibody-forming cell response and phenotypic marker expression in F(0) and F(1) generations of Sprague-Dawley rats. Toxicol Appl Pharmacol 2002 Jun 15;181(3):219-27.
2002
Patisaul HB and others. Genistein affects ER beta- but not ER alpha-dependent gene expression in the hypothalamus. Endocrinology 2002 Jun;143(6):2189-97.
2002
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Fontes:
http://articles.mercola.com/sites/articles/archive/2008/09/18/what-s-so-bad-about-tofu.aspx - visitado em 02 de Outubro de 2008
http://www.westonaprice.org/soy/index.html - visitado em 02 de Outubro de 2008
http://www.westonaprice.org/soy/dangersisoflavones.html - visitado em 02 de Outubro de 2008
http://vm.cfsan.fda.gov/%7Edjw/pltx.cgi?QUERY=soy - visitado em 02 de Outubro de 2008