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Ovarian ablation

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https://www.readbyqxmd.com/read/28089684/the-impact-of-cystectomy-on-ovarian-reserve-a-review-of-the-literature
#1
REVIEW
Roa Alammari, Michelle Lightfoot, Hye-Chun Hur
Ovarian cysts are common in the reproductive age. Pathological cysts such as endometriomas and dermoids often require surgical intervention if symptomatic. Laparoscopic cystectomy is the first line treatment for these cysts, and is associated with better pain control and less recurrence than drainage or cyst ablation procedures. There has been an emerging concern about the effect of ovarian cystectomy on ovarian reserve with some evidence of short term and long term reduction in ovarian reserve. Certain cyst characteristics (endometrioma pathology, large cyst size, bilateral presentation) are associated with greater decline in ovarian reserve after cystectomy...
January 9, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28089574/does-preoperative-antim%C3%A3-llerian-hormone-level-influence-postoperative-pregnancy-rate-in-women-undergoing-surgery-for-severe-endometriosis
#2
Emanuela Stochino-Loi, Basma Darwish, Oana Mircea, Salma Touleimat, Jenny-Claude Millochau, Carole Abo, Stefano Angioni, Horace Roman
OBJECTIVE: To compare postoperative pregnancy rates as they relate to presurgery antimüllerian hormone (AMH) level in patients with stage 3 and 4 endometriosis. DESIGN: Retrospective comparative study using data prospectively recorded in the North-West Inter-Regional Female Cohort for Patients with Endometriosis (CIRENDO) database. SETTING: University tertiary referral center. PATIENT(S): One hundred eighty patients with stage 3 and 4 endometriosis and pregnancy intention, managed from June 2010 to March 2015, were divided into two groups according to their preoperative AMH levels: group A (AMH ≥2 ng/mL) and group B (AMH <2 ng/mL)...
January 12, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28077333/molecular-cloning-characterization-and-expression-analysis-of-two-juvenile-hormone-esterase-like-carboxylesterase-cdnas-in-chinese-mitten-crab-eriocheir-sinensis
#3
Yu Xu, Muzi Zhao, Yanfei Deng, Yuanjie Yang, Xuguang Li, Quanping Lu, Jiachun Ge, Jianlin Pan, Zhiqiang Xu
Precise regulation of methyl farnesoate (MF) titer is of prime importance throughout the crustacean life-cycle. Although the synthetic pathway of MF is well-documented, little is known about its degradation and recycling in crustaceans. Juvenile hormone esterase-like (JHE-like) carboxylesterase (CXE) is a key enzyme in MF degradation, thus playing a significant role in regulating the MF titer. We identified and characterized two cDNAs, Es-CXE1 and Es-CXE2, encoding JHE-like CXEs in Chinese mitten crab. Full-length cDNAs of Es-CXE1 and Es-CXE2 encode proteins composed of 584 and 597 amino acids, respectively, both of which contain a typical carboxylesterase domain...
January 8, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28068959/pancreatic-neuroendocrine-tumor-with-metastasis-to-the-spleen-a-case-report
#4
Yasunaru Sakuma, Yoshikazu Yasuda, Naohiro Sata, Yoshinori Hosoya, Atsushi Shimizu, Hirofumi Fujii, Daisuke Matsubara, Noriyuki Fukushima, Atsushi Miki, Misato Maeno, Alan Kawarai Lefor
BACKGROUND: Long-term term survival in patients with pancreatic neuroendocrine tumors has been reported, even in patients with metastatic disease. Metastases to the spleen are extremely rare, but have been reported from a number of primary malignancies, such as breast cancer, lung cancer, melanoma and ovarian cancer. This is the first report of a splenic metastasis from a primary pancreatic neuroendocrine tumor. CASE PRESENTATION: The patient presented as a 53 years old white male with anemia and fatigue...
January 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28053622/role-of-ovarian-function-suppression-in-premenopausal-women-with-early-breast-cancer
#5
REVIEW
Woo-Chan Park
Historically, endocrine therapy for breast cancer began with ovarian ablation (OA) for the treatment of premenopausal patients. After the identification of estrogen receptors and the development of many antiestrogens, tamoxifen has been approved and used as the standard endocrine therapy for hormonal receptor (HR)-positive premenopausal patients to date. With the development of luteinizing hormone-releasing hormone agonists, the paradigm of endocrine therapy for premenopausal women with HR-positive breast cancer began to change from OA to ovarian function suppression (OFS)...
December 2016: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28049215/surgical-management-of-endometriosis-in-patients-with-chronic-pelvic-pain
#6
Rebecca Flyckt, Suejin Kim, Tommaso Falcone
Surgical approaches to endometriosis patients with chronic pelvic pain are multimodal and require individualization. Laparoscopic approaches are preferred over laparotomy when conservatively treating endometriosis via excision or ablation/fulguration of lesions. The available data support cystectomy over fenestration or fulguration for endometriomas; however, there may be associated decreases in ovarian reserve with endometrioma treatment. Presacral neurectomy may be useful in patients with midline pain and LUNA is not effective for the treatment of pelvic pain related to endometriosis...
January 3, 2017: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/28024943/effects-of-ovarian-ablation-or-suppression-in-premenopausal-breast-cancer-a-meta-analysis-of-randomized-controlled-trials
#7
REVIEW
P Zhang, C-Z Li, G-M Jiao, J-J Zhang, H-P Zhao, F Yan, S-F Jia, B-S Hu, C-T Wu
BACKGROUND: The effect of ovarian ablation or suppression (OAS) in premenopausal women with breast cancer is controversial. The overall survival (OS), disease-free survival (DFS) and adverse event of OAS versus no OAS were compared. METHODS: A literature review of EMBASE, Web of Science, PUBMED, and Cochrane Library was conducted. The hazard ratio (HR) and 95% confidence interval (CI) for OS and DFS, as well as risk ratio (RR) and 95% CI for adverse events were evaluated...
December 5, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28005395/conditional-ablation-of-progesterone-receptor-membrane-component-2-causes-female-premature-reproductive-senescence
#8
N C Clark, C A Pru, S P Yee, J P Lydon, J J Peluso, J K Pru
The non-classical progesterone receptors, progesterone receptor membrane component (PGRMC) 1 and PGRMC2 have been implicated in regulating cell survival of endometrial and ovarian cells in vitro and are abundantly expressed in these cell types. The objective of this study was to determine if Pgrmc1 and Pgrmc2 are essential for normal female reproduction. To accomplish this objective, Pgrmc1 and/or Pgrmc2 floxed mice (Pgrmc2(fl/fl) and Pgrmc1/2(fl/fl)) were crossed with Pgr-cre mice which resulted in the conditional ablation of Pgrmc1 and/or Pgrmc2 from female reproductive tissues (i...
December 22, 2016: Endocrinology
https://www.readbyqxmd.com/read/27922979/a-comparison-of-thermal-plasma-energy-versus-argon-beam-coagulator-induced-intestinal-injury-after-vaporization-in-a-porcine-model
#9
Edward J Tanner, Erica Dun, Yukio Sonoda, Alexander B Olawaiye, Dennis S Chi
OBJECTIVES: Complete cytoreduction of ovarian cancer often requires excision or ablation of bowel serosa implants. Both argon beam coagulator (ABC) and thermal plasma energy (TPE) (PlasmaJet; PlasmaSurgical, Roswell, Ga) have been used to ablate bowel serosa implants. Our objective was to identify comparable power settings as well as determine the rate of bowel perforation, depth of thermal injury, and extent of inflammatory response with ABC versus TPE in a porcine model. MATERIALS AND METHODS: Nine pigs underwent vaporization of small bowel and colon serosa according to assigned treatment group (TPE vs ABC) and settings (ABC: 30, 50, and 70 W; TPE: Cut 10U, 20U, and 30U and Coagulation 10U, 20U, and 30U)...
January 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27870704/clinical-outcomes-for-stereotactic-ablative-radiotherapy-in-oligometastatic-and-oligoprogressive-gynecological-malignancies
#10
Shane Mesko, Kiri Sandler, Joshua Cohen, Gottfried Konecny, Michael Steinberg, Mitchell Kamrava
OBJECTIVES: We report single-institution clinical outcomes of women treated with stereotactic ablative radiotherapy (SABR) for oligometastatic or progressive gynecological malignancies. MATERIALS AND METHODS: From 2009 to 2015, 47 lesions from 28 patients were treated with SABR and retrospectively analyzed. All patients had oligometastatic (93%) or oligoprogressive (7%) disease. Primary cancer diagnoses were 15 ovarian, 8 endometrial, 2 cervical, 2 vaginal, and 1 uterine carcinosarcoma...
November 17, 2016: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27720728/cloning-of-two-carboxylesterase-cdnas-from-the-swimming-crab-portunus-trituberculatus-molecular-evidences-for-their-putative-roles-in-methyl-farnesotae-degradation
#11
Tian Tao, Xi Xie, Mingxin Liu, Qinghua Jiang, Dongfa Zhu
The sesquiterpenoid methyl farnesoate (MF) is the unepoxidized form of insect juvenile hormone (JH) III, and is considered an equivalent of JH in crustaceans. Degradation of MF is similar to that of JH which occurs through ester hydrolysis by specific carboxylesterases (CXEs). In this study, the full-length cDNAs of two JH esterase-like CXEs were cloned from the swimming crab, Portunus trituberculatus. The predicted amino acid sequences of the two PtCXEs contain the conserved motifs including catalytic triad and oxyanion hole, which are the hallmark of the CXE family proteins...
January 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/27711957/evaluation-of-ovarian-reserve-with-amh-level-in-patients-with-well-differentiated-thyroid-cancer-receiving-radioactive-iodine-ablation-treatment
#12
F Acıbucu, D O Acıbucu, Ö B Akkar, H S Dokmetas
Introduction: Radioactive iodine (RAI) ablation treatment is used for patients diagnosed with well-differentiated thyroid cancer in order to reduce the risk of recurrence. RAI ablation treatment can adversely affect gonads in males and females. In this study, we aimed to determine ovary damage and infertility risk due to RAI, using serum anti-Müllerian hormone (AMH) level, in females who received RAI ablation treatment. Materials and Methods: 45 female patients who have not gone through the menopause and had received RAI ablation treatment for well-differentiated thyroid cancer in premenopausal period, and 40 healthy females as control groups were included in this study...
November 2016: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/27690654/stereotactic-laser-ablation-as-treatment-for-brain-metastases-that-recur-after-stereotactic-radiosurgery-a-multiinstitutional-experience
#13
Mir Amaan Ali, Kate T Carroll, Robert C Rennert, Thomas Hamelin, Leon Chang, Brian P Lemkuil, Mayur Sharma, Jill S Barnholtz-Sloan, Charlotte Myers, Gene H Barnett, Kris Smith, Alireza M Mohammadi, Andrew E Sloan, Clark C Chen
OBJECTIVE Therapeutic options for brain metastases (BMs) that recur after stereotactic radiosurgery (SRS) remain limited. METHODS The authors provide the collective experience of 4 institutions where treatment of BMs that recurred after SRS was performed with stereotactic laser ablation (SLA). RESULTS Twenty-six BMs (in 23 patients) that recurred after SRS were treated with SLA (2 patients each underwent 2 SLAs for separate lesions, and a third underwent 2 serial SLAs for discrete BMs). Histological findings in the BMs treated included the following: breast (n = 6); lung (n = 6); melanoma (n = 5); colon (n = 2); ovarian (n = 1); bladder (n = 1); esophageal (n = 1); and sarcoma (n = 1)...
October 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27689881/the-insulin-like-proteins-dilps-2-5-determine-diapause-inducibility-in-drosophila
#14
Luca Schiesari, Gabriele Andreatta, Charalambos P Kyriacou, Michael B O'Connor, Rodolfo Costa
Diapause is an actively induced dormancy that has evolved in Metazoa to resist environmental stresses. In temperate regions, many diapausing insects overwinter at low temperatures by blocking embryonic, larval or adult development. Despite its Afro-tropical origin, Drosophila melanogaster migrated to temperate regions of Asia and Europe where females overwinter as adults by arresting gonadal development (reproductive diapause) at temperatures <13°C. Recent work in D. melanogaster has implicated the developmental hormones dILPs-2 and/or dILP3, and dILP5, homologues of vertebrate insulin/insulin-like growth factors (IGFs), in reproductive arrest...
2016: PloS One
https://www.readbyqxmd.com/read/27670884/53bp1-ablation-rescues-genomic-instability-in-mice-expressing-ring-less-brca1
#15
Minxing Li, Francesca Cole, Dharm S Patel, Sarah M Misenko, Joonyoung Her, Amy Malhowski, Ali Alhamza, Haiyan Zheng, Richard Baer, Thomas Ludwig, Maria Jasin, André Nussenzweig, Lourdes Serrano, Samuel F Bunting
BRCA1 mutations strongly predispose affected individuals to breast and ovarian cancer, but the mechanism by which BRCA1 acts as a tumor suppressor is not fully understood. Homozygous deletion of exon 2 of the mouse Brca1 gene normally causes embryonic lethality, but we show that exon 2-deleted alleles of Brca1 are expressed as a mutant isoform that lacks the N-terminal RING domain. This "RING-less" BRCA1 protein is stable and efficiently recruited to the sites of DNA damage. Surprisingly, robust RAD51 foci form in cells expressing RING-less BRCA1 in response to DNA damage, but the cells nonetheless display the substantial genomic instability...
November 2016: EMBO Reports
https://www.readbyqxmd.com/read/27665252/in-vitro-fertilization-outcomes-after-ablation-of-endometriomas-using-plasma-energy-a-retrospective-case-control-study
#16
I Motte, H Roman, B Clavier, F Jumeau, I Chanavaz-Lacheray, M Letailleur, B Darwish, N Rives
OBJECTIVE: Ovarian endometrioma ablation using plasma energy appears to be a valuable alternative to cystectomy, because it could spare underlying ovarian parenchyma resulting in high spontaneous and overall pregnancy rates. After initial postoperative decrease, anti-mullerian hormone (AMH) level progressively increases several months after ablation. The aim of our study was to assess the outcomes of in vitro fertilization (IVF) in women managed for ovarian endometriomas by ablation using plasma energy, when compared to those in women free of endometriosis...
October 2016: Gynécologie, Obstétrique & Fertilité
https://www.readbyqxmd.com/read/27651639/clinicopathological-study-of-uterine-leiomyomas-a-multicentric-study-in-rural-population
#17
Maitri Raghavendra Kulkarni, Indranil Dutta, Dilip Kumar Dutta
BACKGROUND AND OBJECTIVES: Leiomyoma of uterus forms the most common type of benign tumor of uterus and also the most common pelvic tumor in women. The symptomatology continues to be variable. Surgery has for long been the main mode of therapy for the myomas. For women who wish to retain the uterus for future pregnancies or other reasons, myomectomy is preferred. Recent trend has been toward nonsurgical approaches like GnRH hormone analogs/agonists, RU 486, or selective uterine artery embolization, laparoscopic cryoablation, radiofrequency thermal ablation, and MRGUs...
October 2016: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/27625611/the-calcium-sensing-receptor-and-the-reproductive-system
#18
REVIEW
Isabella Ellinger
Active placental transport of maternal serum calcium (Ca(2+)) to the offspring is pivotal for proper development of the fetal skeleton as well as various organ systems. Moreover, extracellular Ca(2+) levels impact on distinct processes in mammalian reproduction. The calcium-sensing receptor (CaSR) translates changes in extracellular Ca(2+)-concentrations into cellular reactions. This review summarizes current knowledge on the expression of CaSR and its putative functions in reproductive organs. CaSR was detected in placental cells mediating materno-fetal Ca(2+)-transport such as the murine intraplacental yolk sac (IPYS) and the human syncytiotrophoblast...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27611097/nanoscopic-tumor-tissue-distribution-of-platinum-after-intraperitoneal-administration-in-a-xenograft-model-of-ovarian-cancer
#19
Charlotte Carlier, Brecht Laforce, Stijn J M Van Malderen, Félix Gremonprez, Remi Tucoulou, Julie Villanova, Olivier De Wever, Laszlo Vincze, Frank Vanhaecke, Wim Ceelen
There is increasing interest in the treatment of advanced stage ovarian cancer (OC) using intraperitoneal (IP) delivery of platinum (Pt)-based chemotherapy. The antitumor efficacy of IP chemotherapy is determined by efficient tumor tissue penetration. Although it is assumed that Pt penetration is limited to a few millimeters after IP delivery, little is known on the distribution of Pt in different tumor compartments at the ultrastructural level following IP administration. Here, using synchrotron radiation X-ray fluorescence spectrometry (SR-XRF) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), Pt distribution and penetration in OC peritoneal xenografts were determined at nanometer scale after IP chemoperfusion of cisplatin at 37-38°C or 40-41°C (hyperthermic)...
November 30, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27553184/fertility-outcomes-following-ablation-using-plasma-energy-versus-cystectomy-in-infertile-women-with-ovarian-endometrioma-a-prospective-multicentric-comparative-study
#20
Oana Mircea, Lucian Puscasiu, Benoit Resch, Jerome Lucas, Pierre Collinet, Peter Von Theobald, Philippe Merviel, Horace Roman
STUDY OBJECTIVE: To compare the probability of postoperative pregnancy in infertile women with ovarian endometrioma larger than 3 cm in diameter, managed by either ablation using plasma energy or cystectomy. DESIGN: A multicentric prospective case-control study enrolling 104 infertile patients managed for ovarian endometrioma larger than 3 cm diameter: 64 patients underwent ablation using plasma energy (cases) and 40 underwent cystectomy (controls). Patients were enrolled in CIRENDO prospective cohort database (NCT02294825) from June 2009 to June 2014 and man- aged in six different facilities...
August 20, 2016: Journal of Minimally Invasive Gynecology
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