Entity

Time filter

Source Type


Gao Y.,Huazhong University of Science and Technology | Fu H.,Huazhong University of Science and Technology | He Y.,Huazhong University of Science and Technology | Man Y.,Endometriosis Research Center Charite | And 2 more authors.
Evidence-based Complementary and Alternative Medicine | Year: 2011

Although it is well known that acupuncture has beneficial effects on a variety of medical conditions especially in pain relief, nausea, and vomiting, it remains controversial whether it has positive impact on the female reproduction. The present study aimed to evaluate whether the following endometrial receptivity factors: the endometrial morphology, the hormone concentrations, and the protein expression of endometrial leukaemia-inhibitory factor (LIF) and osteopontin (OPN) could be improved by the acupuncture in clomiphene citrate(CC)-induced rat model during implantation period. Results showed that, compared with the CC group, glandular development advanced, the serum estradiol levels decreased significantly, and the glandular area and endometrial LIF and OPN expression were significantly higher in acupuncture group. There were no significant differences in serum progesterone levels, endometrial thickness, and stromal area between groups. These results suggest that acupuncture can improve certain aspects of endometrial receptivity in CC-induced rat model during implantation period, which might result in endometrial state better to female reproduction. Copyright © 2011 Houju Fu et al. Source


Barcena De Arellano M.L.,Endometriosis Research Center Charite | Oldeweme J.,Endometriosis Research Center Charite | Oldeweme J.,Institute for Dental | Arnold J.,Endometriosis Research Center Charite | And 3 more authors.
Fertility and Sterility | Year: 2013

Objective: To investigate neuronal remodeling processes in the uterine innervation, particularly a remodeling of sympathetic nerve fibers, as well as the role of estrogen in this modulation in adenomyosis. Design: Retrospective case-control study. Setting: University hospital endometriosis center. Patient(s): Forty-two patients with histologically proven adenomyosis and 19 patients without adenomyosis. Intervention(s): Endometrial and myometrial tissue were immunohistochemically analyzed to further characterize the uterine innervation. Main Outcome Measure(s): Immunohistochemical analysis was used to identify PGP 9.5-, substance P-, and tyrosine hydroxylase-positive nerve fibers. The expression of the aromatase cytochrome P450 was evaluated in uterine tissue, and the expression of the estrogen receptor (ER) -α and ERβ in uterine nerve fibers was analyzed. Result(s): Adenomyotic lesions are not innervated. The density of sympathetic nerve fibers in the myometrium of women with adenomyosis is reduced when compared with the nonadenomyosis group. The aromatase expression in the myometrium of women with adenomyosis was increased when compared with the control group. The ERα/ERβ ratio is in trend shifted to the ERα side in the myometrial tyrosine hydroxylase-positive nerve fibers in adenomyosis compared to the controls. Conclusion(s): The disruption of the modulation of the uterine sympathetic innervation seems to be an important aspect in the pathogenesis of adenomyosis. Estrogen and its receptors seem to play a crucial role in the depletion of myometrial sympathetic nerve fibers. © 2013 by American Society for Reproductive Medicine. Source


Barcena de Arellano M.L.,Endometriosis Research Center Charite | Arnold J.,Endometriosis Research Center Charite | Arnold J.,Free University of Berlin | Sacher F.,Bayer AG | And 7 more authors.
Journal of Neuroimmunology | Year: 2012

The role of neurotrophins in eutopic endometrium from endometriosis-patients was investigated in a prospective study using immunofluorescence-staining, Western blot and a neuronal growth assay. The nerve growth factor is expressed in primary endometrial cell culture from women with and without endometriosis. Western blot analysis of endometrial biopsies or uterine fluid from patients with and without endometriosis shows no difference in the neurotrophin expression. We could not find a difference between patients with and without endometriosis with regards to the neurite outgrowth of sensory ganglia when treated with conditioned cultured medium or uterine fluid. This result refutes the assumed neurotrophic properties of eutopic endometrium of patients with endometriosis. © 2012 Elsevier B.V. Source


Barcena de Arellano M.L.,Endometriosis Research Center Charite | Arnold J.,Endometriosis Research Center Charite | Arnold J.,Free University of Berlin | Lang H.,Endometriosis Research Center Charite | And 4 more authors.
Cytokine | Year: 2013

To investigate the neurotrophic properties of endometriosis, as well as the involvement of neurotrophic factors in the development of chronic pelvic pain in patients with endometriosis, we performed a prospective clinical study. The presence of neurotrophins was investigated in the peritoneal fluid (PF) of patients with peritoneal endometriotic lesions or adenomyosis, as well as from women with non-endometriotic adhesions and from women without endometriosis/adenomyosis/adhesions. The PF from patients with peritoneal endometriotic lesions was divided in three groups: asymptomatic endometriosis, minimal pain and severe pain. PF from patients with adenomyosis or with non-endometriotic adhesions and the control group were divided in patients without pain and with pain. Neurotrophin expression in PF was analyzed using Elisa and the neuronal growth assay with cultured chicken sensory ganglia (dorsal-root-ganglia, DRG) and sympathetic ganglia. PF from women with peritoneal endometriotic lesions overexpress nerve growth factor (NGF) and neurotrophin-3 (NT-3), but not brain derived neurotrophic factor (BDNF), whereas the PF of women with adenomyosis or adhesions seems to express normal amounts of these factors. Neurotrophin expression did not differ among the pain groups. Furthermore, the PF from patients with peritoneal endometriotic lesions induced a strong sensory and a marginal sympathetic neurite outgrowth, while the PF from women with adenomyosis and non-endometriotic adhesions induced an outgrowth similar to the control group. The induced neurite outgrowth could only be inhibited in DRG incubated with peritoneal endometriotic lesions. Interestingly, the outgrowth of sympathetic ganglia was inhibited in all studied groups.The present study suggests that only peritoneal endometriotic lesions lead to an increased release of NGF and NT-3 into the PF and that NGF modulates the nerve fiber growth in endometriosis. © 2013 Elsevier Ltd. Source


Reichelt U.,University Hospital | Keichel S.,Endometriosis Research Center Charite | De Arellano M.L.B.,Endometriosis Research Center Charite | Chiantera V.,Endometriosis Research Center Charite | And 2 more authors.
Reproductive Sciences | Year: 2012

To investigate the occurrence of lymph vessels and lymphangiogenic growth factors in peritoneal lesions, we performed immunohistochemical staining of peritoneal lesions of 37 patients with antibodies against podoplanin (D2-40), lymphatic vessel endothelial hyaluronan receptor 1 (LYVE-1), prospero homeobox protein 1 (Prox-1), vascular epithelial growth factor (VEGF)-C/VEGF-D. Overall, 10 lesions were double stained against D2-40 and von Willebrand factor. The lymph vessel density in peritoneal lesion was significantly higher in comparison with healthy peritoneum. All lymph vessel makers could be detected, whereby the lymph vessel density of LYVE-1- and Prox-1-positive lymph vessels was significantly higher than the lymph vessel density of D2-40-positive lymph vessels. Endometriotic epithelial cells and stromal cells (SCs) showed a moderate-to-strong VEGF-C/VEGF-D expression. The VEGF-C-/VEGF-D-positive macrophages in endometriotic SCs could be observed. The lymphatic vasculature seems to form a further component of peritoneal lesions and could be involved in the inflammatory process. These data demonstrated a further step in the clarification of the pathogenesis of endometriosis. © The Author(s) 2012. Source

Discover hidden collaborations