Norwegian Adenomyosis Study II: Gene Expression Profiling of Adenomyosis
关键词
抽象
描述
Biopsy of focal adenomyosis of the myometrium:
This will be an extension of the NAPPED1-study. The investigators will perform ultrasound-guided transvaginal biopsies of the myometrium and collect venous blood samples.
As recent studies have suggested abnormalities in the regulation of specific genes in the development of adenomyosis, the investigators want to investigate differentially expressed genes in adenomyosis compared to eutopic endometrium. Using microarrays, the investigators can simultaneously screen differences in expression of thousands of genes in samples from the two groups. Profiling studies performed on endometrium of healthy individuals and of endometriosis show results that enable identification of biological processes and molecular mechanisms. Expression profiles can be used to identify molecular targets for therapeutic purposes. There are some very interesting studies that investigate drug treatment on a molecular level e.g. the effect of Danazol treatment on eutopic and ectopic endometrial tissue, but intramural adenomyosis has not been subject to gene profiling yet.
Tissue samples can be easily obtained after hysterectomy, but those samples will only represent older women, and cannot be used for consecutive monitoring of biochemical effects of treatment, as the uterus is removed. In order to investigate the pathophysiology of adenomyosis in younger women, and compare it to those in older individuals, as well as to evaluate effects of treatment, it is necessary to be able to obtain in-vivo samples.
The plan is therefore to take transvaginal, ultrasound-guided biopsy-samples from the uterus (myometrium) of all included patients at the beginning of their surgery, when the patient is under full anesthesia. The safety of comparable procedures has been shown in prior studies, but the investigators will further validate the safety of this method. The investigators believe that an in-vivo biopsy is a safe measure, and that representative samples of adenomyosis can be obtained.
The challenge with adenomyosis is that it is located intramyometrially. A transcervical biopsy will contaminate the sample with eutopic endometria, therefore it is most meaningful to take the biopsy transvaginally, but not through the cavity. After obtaining the biopsy sample, it will be examined histologically by imprint, to confirm if glandular cells are contained where expected. When good routines show a reliable level of specificity, the investigators will go further by selecting approximately 10 patients for gene profiling of adenomyosis. The investigators will also use endometrial biopsies (Pipelle) from those patients to see if there is a difference between intramural adenomyosis and their eutopic endometria. Most patients that undergo hysterectomy have taken a pipelle-biopsy routinely.
The levels of prolactin, Anti-müllerian hormone (AMH), Follicle stimulating hormone (FSH), luteinizing hormone (LH) and estrogen will also be taken, in order to determine if the severity of adenomyosis is only related to age as shown before, or also to hormonal activity.
日期
最后验证: | 07/31/2019 |
首次提交: | 07/16/2014 |
提交的预估入学人数: | 07/21/2014 |
首次发布: | 07/22/2014 |
上次提交的更新: | 08/17/2019 |
最近更新发布: | 08/19/2019 |
实际学习开始日期: | 08/05/2014 |
预计主要完成日期: | 10/31/2019 |
预计完成日期: | 11/30/2019 |
状况或疾病
干预/治疗
Procedure: Myometrial biopsy
Procedure: endometrial biopsy
相
手臂组
臂 | 干预/治疗 |
---|---|
Biopsy: adenomyosis Myometrial biopsy Pipelle | |
Biopsy: Healthy Myometrial Biopsy Pipelle |
资格标准
有资格学习的年龄 | 30 Years 至 30 Years |
有资格学习的性别 | Female |
取样方式 | Non-Probability Sample |
接受健康志愿者 | 是 |
标准 | Inclusion Criteria: Premenopausal women aged 30 - 50 years old scheduled for vaginal, abdominal or laparoscopic total hysterectomy one or more of the following clinical symptoms: - bleeding disorders (menorrhagia, irregular bleeding, hypermenorrhoea), - chronic pelvic pain, - dysmenorrhoea, - or dyspareunia junction zone definable Exclusion Criteria: - postmenopausal women, - pregnancy - gynecological cancer - GnRH analog therapy or systemic hormone therapy in the last three months prior to hysterectomy - junctional zone not identifiable |
结果
主要结果指标
1. Sensitivity and specificity of biopsies for adenomyotic tissue in percent (%) [At time of hysterectomy]
次要成果指标
1. multiple comparison of gene expression, measured in fold [at time of biopsy taking]
2. Frequency of complications related to biopsy taking in percent (%) [through 1 hour after biopsytaking]
3. Serum levels of prolactin in mU/L [at time of hysterectomy]
4. Serum level of ER, in nmol/L [at time of hysterectomy]
5. Serum levels of FSH in U/L [at time of hysterectomy]
6. Serum levels of AMH in pmol/L [at time of hysterectomy]
7. Serum levels of LH in U/L [at time of hysterectomy]
8. difference hormone serum-levels in fold [at time of hysterectomy]