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The effect of cadmium on the coagulation and fibrinolytic system in women with uterine endometrial cancer and myoma

100%

Nasiadek M. , Kilanowicz A. , Darago A. , Lazarenkow A. , Michalska M.

International Journal of Occupational Medicine and Environmental Health

2013

tom 26

nr 2

291-301

Objectives: Cadmium (Cd) is a persistent and widespread environmental pollutant, which may constitute a potential risk factor for hormone-dependent tumors such as endometrial cancer. The vascular endothelium is an important target of cadmium toxicity, which may interfere with the coagulation cascade and fibrinolytic system. The aim of this research was to investigate whether in female patients with uterine endometrial cancer or myoma in comparison to healthy women, the concentration of cadmium in blood affects the process of coagulation and fibrinolysis. Materials and Methods: The study group comprised 91 women: 35 healthy (A-control), 39 with uterine myoma (B) and 17 with endometrial cancer (C), in which blood cadmium concentrations (BCd), coagulation and selected fibrinolysis parameters in plasma were assayed. Results: In the women with myoma and especially in those with endometrial cancer disturbances in coagulation and fibrinolysis were detected when compared to the healthy women. In the group of women with endometrial cancer significant changes in prothrombin index, levels of fibrinogen, fibrin D-dimer and t-PA were observed. Whereas, in the patients with myoma significant changes in prothrombin time, index of vWillebrand Factor and fibrin D-dimer level were noted. Mean BCd concentrations in subsequent groups were as follows: B - 0.91±0.81; C - 0.78±0.45 μg Cd/l and did not differ significantly in comparison with the control group (0.86±0.35 μg Cd/l). However, in each study group smokers had approximately twice as high BCd as non-smokers. Studies also showed significant associations between BCd and fibrinogen level and thrombin time among the women with myoma and endometrial cancer, as well as in healthy women. Moreover, thrombin time significantly correlated with fibrinogen level in the women studied. Conclusions: In the patients with myoma and especially in these with endometrial cancer disturbances in coagulation and fibrinolysis parameters leading to hypercoagulability were detected. Exposure to cadmium can be one of the factors inducing these changes.

Ekspresja czynnika VEGF i receptora R1 w mięśniakach macicy kobiet w różnym wieku

72%

Bogunia E. , Morek M. , Plewka A. , Plewka D. , Miśkiewicz A. , Wittek P. , Kurpas P. , Bilski R. , Madej P.

nr 5

303-310

Uterine myomas are the most common benign neoplasms of female reproductive organs. These neoplasms depend upon the impact of steroidal sex hormones – estrogen and progesterone. In uterine myoma cells a disturbed expression of some cytokines and factors is found, including angiogenic factors. The aim of the study was to evaluate the VEGF factor and VEGF-R1 receptor expression in uterine myomas. In the study there were 20 women with myomatous alterations in the uterus, including 10 women in reproductive age and 10 women in perimenopausal age. The study material consisted of tissue specimens taken from the myoma and specimens taken from normal myometrium. Evaluation of the VEGF factor and R1 receptor expression was conducted by means of immunohistochemical staining, using the ABC technique. In the evaluated cells with uterine myoma, both in young women and those in perimenopausal age, a significant increase in VEGF expression was found. This expression was independent of the myoma size. Moreover, a significantly higher VEGF-R1 expression was found in large myomas compared to small ones. The high VEGF factor expression level in women in perimenopausal age may indicate an additional local process of estrogen synthesis. The high VEGF-R1 expression in large myomas may suggest a direct stimulation of myoma growth affected by VEGF.

Mięśniaki macicy należą do najczęstszych łagodnych nowotworów żeńskich narządów płciowych. Są to nowotwory zależne od wpływu steroidowych hormonów płciowych – estrogenów i progesteronu. W komórkach mięśniaków macicy stwierdza się zaburzoną ekspresję niektórych cytokin i czynników, w tym czynników angiogennych. Celem badań była ocena ekspresji naczyniowo-śródbłonkowego czynnika wzrostu VEGF (vascular endothelial growth factor) i receptora VEGF-R1 (vascular endothelial growth factor receptor 1) w mięśniakach macicy. Badaniem objęto 20 kobiet ze zmianami mięśniakowatymi w macicy, w tym 10 w wieku rozrodczym i 10 w wieku okołomenopauzalnym. Materiał do badań stanowiły wycinki tkankowe pobrane z mięśniaka oraz próbki pobrane z prawidłowego miometrium. Ekspresję czynnika VEGF i receptora R1 oceniano na podstawie barwienia immunohistochemicznego, wykorzystując technikę ABC. W ocenianych typach komórek macicy z mięśniakami, zarówno u kobiet młodych, jak i w wieku okołomenopauzalnym stwierdzono wyraźny wzrost ekspresji VEGF. Ekspresja ta była niezależna od wielkości mięśniaka. Stwierdzono także wyraźnie wyższą ekspresję VEGF-R1 w mięśniakach dużych niż w małych. Wysoki poziom ekspresji czynnika VEGF u kobiet w wieku okołomenopauzalnym może wskazywać na dodatkowy lokalny proces syntezy estrogenów. Wysoka ekspresja VEGF-R1 w mięśniakach dużych może świadczyć

The TRAF2 and TRAF6 expression in myomas and myometrium of women in reproduction and perimenopausal age

51%

Plewka A. , Madej P. , Plewka D. , Nowaczyk G. , Morek M. , Bogunia E. , Ciupinska-Kajor M. , Sieron-Stoltny K.

Folia Histochemica et Cytobiologica

2010

tom 48

nr 3