Publications by authors named "Tia Berry"

Streptococcus gallolyticus subsp. gallolyticus (Sg) has long been known to have a strong association with colorectal cancer (CRC). This knowledge has important clinical implications, and yet little is known about the role of Sg in the development of CRC.

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Environmental exposures during sensitive windows of development can reprogram normal physiologic responses and alter disease susceptibility later in life in a process known as developmental reprogramming. For example, exposure to the xenoestrogen diethylstilbestrol during reproductive tract development can reprogram estrogen-responsive gene expression in the myometrium, resulting in hyperresponsiveness to hormone in the adult uterus and promotion of hormone-dependent uterine leiomyoma. We show here that the environmental estrogens genistein, a soy phytoestrogen, and the plasticizer bisphenol A, differ in their pattern of developmental reprogramming and promotion of tumorigenesis (leiomyomas) in the uterus.

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Epidemiological and experimental animal studies have shown that exposure to xenoestrogens during reproductive tract development reprograms target tissues, leading to increased disease risk later in adult life. To understand what defines the critical risk period for this effect, termed developmental programming, the authors assess the sensitivity of the female reproductive tract to developmental programming during various stages of neonatal development. Eker rats, which are predisposed to develop uterine leiomyoma because of a germ-line defect in the tuberous sclerosis complex 2 (Tsc-2) tumor suppressor gene, were exposed to the xenoestrogen diethylstilbestrol (DES) on either postnatal days 3 to 5, 10 to 12, or 17 to 19, 3 important periods of reproductive tract development and differentiation.

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