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https://www.readbyqxmd.com/read/28433664/ovaries-of-the-white-worm-enchytraeus-albidus-annelida-clitellata-are-composed-of-16-celled-meroistic-germ-line-cysts
#1
Anna Z Urbisz, Łukasz Chajec, Agnieszka Brąszewska-Zalewska, Janusz Kubrakiewicz, Piotr Świątek
The paired ovaries of E. albidus are like a bunch of grapes and are composed of clearly separated units, syncytial germ cysts (clusters), which are surrounded by a thin layer of somatic cells. Each cyst maintains the connection with the ovary by an extended stalk that is composed of somatic cells. The spatial architecture of the germ-line cysts found in E. albidus is the same as in other clitellate annelids that have been studied to date. As a rule, germ cells are located at the cyst periphery and each has only one ring canal that connects it to the common and centrally located cytoplasmic mass, the cytophore...
April 19, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28432106/prohibitin-induced-obesity-leads-to-anovulation-and-polycystic-ovary-in-mice
#2
Sudharsana Rao Ande, Khanh Hoa Nguyen, Yang Xin Zi Xu, Suresh Mishra
Polycystic ovary syndrome (PCOS) is a prevalent endocrine disorder and the most common cause of female infertility. However, the etiology of the disease and the mechanisms by which this disorder progress remain unclear. Here we report that a transgenic obese mouse (Mito-Ob) developed by overexpressing prohibitin in adipocytes develops polycystic ovaries. Initially, the female Mito-Ob mice were equally fertile to their wild-type littermates. Mito-Ob mice begin to gain weight after puberty, become significantly obese between 3-6 months of age, and roughly 25% of them become infertile by 9 months of age...
April 21, 2017: Biology Open
https://www.readbyqxmd.com/read/28422330/genetic-relationships-among-female-fertility-disorders-female-fertility-traits-and-productivity-of-holstein-dairy-cows-in-the-early-lactation-period
#3
E Gernand, S König
Fertility health disorders from the early lactation period including retained placenta (REPLA), metritis (MET), corpus luteum persistence (CLP), anoestria/acyclia (AOEAC) and ovarial cysts (OC), as well as overall disease categories (disorders during the postpartal period (DPP), ovary infertility (OINF), overall trait definition "fertility disorders" (FD)), were used to estimate genetic (co)variance components with female fertility and test-day traits. The disease data set comprised 25,142 Holstein cows from parities 1, 2 and 3 resulting in 43,584 lactations...
April 19, 2017: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
https://www.readbyqxmd.com/read/28397201/analysis-of-the-factors-determining-the-type-of-surgical-procedure-in-mature-cystic-teratomas
#4
Alev Özer, Hakan Kıran
OBJECTIVES: It was aimed to evaluate which factors determine the surgical procedure selected by surgeons for cases with mature cystic teratoma (MCT). MATERIAL AND METHODS: This study included 50 cases with histopathologically proven MCT between January 2011 and August 2016 at a tertiary reference hospital. Data related to demographic and clinical characteristics were retrieved from medical records. Multivariate logistic regression analysis was conducted to evaluate the independent factors determining the type of surgical procedure to be applied...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28394114/ovarian-teratoma-in-routine-biopsy-material-during-a-five-year-period
#5
Marina Kos, Jasmina Nikić, Tanja Leniček
Teratomas are tumors derived from germ cells, most frequently arising in the gonads. The aim of this study was to determine the number of ovarian teratomas diagnosed in the routine biopsy material at Ljudevit Jurak Clinical Department of Pathology, Sestre milosrdnice University Hospital Center during a 5-year period, as well as their clinical, gross and microscopic characteristics. Teratomas accounted for 48.6% (n=166) of primary ovarian tumors. The patient mean age was 34.74±12.37 years. Difference in the incidence of teratoma between the left and right ovary was not significant; bilateral teratoma was found in 13 patients...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28357094/high-grade-serous-ovarian-cancer-3-years-after-bilateral-salpingectomy-a-case-report
#6
Emi Sato, Kentaro Nakayama, Masako Ishikawa, Kohei Nakamura, Tomoka Ishibashi, Satoru Kyo
Although epithelial ovarian cancer commonly originates from the ovarian surface epithelium and/or ovarian inclusion cysts, it was recently proposed that high-grade serous ovarian cancer (HGSC) develops from the Fallopian tubes. In our department, we encountered a case of HGSC that contradicts the hypothesis of a tubal origin for HGSC. A 51-year-old postmenopausal woman had undergone hysterectomy, left oophorectomy and bilateral salpingectomy for uterine myoma. Three years later, the patient was diagnosed with stage IV ovarian cancer and underwent primary debulking surgery...
February 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28346665/effects-of-ovarian-structures-identified-at-ovsynch%C3%A2-enrolment-disease-history-and-lactation-variables-on-odds-of-pregnancy-to-a-fixed-time-artificial-insemination-after-ovsynch%C3%A2
#7
L Ingenhoff, E Hall, S Ranjbar Ni, J K House
OBJECTIVE: To determine the effects of ovarian structures present at Ovsynch™ enrolment, disease history, lactation variables and times bred on pregnancy per fixed-time artificial insemination (FTAI) following fixed-time insemination after Ovsynch and to determine the relationship between the size of ovarian follicular structures and concurrent presence of a corpus luteum (CL). METHODS: The study was conducted in a 3000-cow Holstein dairy herd. Over a 6-month period, 886 non-pregnant cows were examined by transrectal ultrasound and enrolled into 1132 Ovsynch events...
April 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28296829/ovarian-torsion-in-the-normal-ovary-a-diagnostic-challenge-in-postmenarchal-adolescent-girls-in-the-emergency-department
#8
Erbil Karaman, Burhan Beger, Orkun Çetin, Mehmet Melek, Yasemin Karaman
BACKGROUND Ovarian torsion can be seen in the otherwise-normal ovary and is a challenging issue in the emergency department. The aims were (1) to evaluate and compare the surgically verified ovarian torsion cases in otherwise-normal ovaries and ovaries including a mass or cyst and (2) to investigate whether the normal-appearing ovaries on ultrasound examination affected the diagnosis of ovarian torsion or not. MATERIAL AND METHODS A retrospective cohort study design was used. The medical records of all postmenarchal adolescent girls with surgically verified ovarian torsion treated in a university hospital from 2010 to 2016 were reviewed...
March 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28293058/ruptured-hemorrhagic-cyst-of-undescended-ovary-mimicking-mucocele-a-rare-pediatric-case
#9
Tamer Sekmenli, Metin Gündüz, Ilhan Ciftci
Undescended ovary is a rare entity and usually presentedas a case report. It is associated with urinary and uterine anomalies. Symptomatic patients are diagnosed during surgery. Most of the patients are asymptomatic and treatment is unnecessary. They are incidentally diagnosed during infertility evaluation and treatment such as ovarian hyperstimulation studies. A 15-year-old female patient presented with the diagnosis of renal cystic massas identifiedduring ultrasonography in another hospital. Abdominal computedtomography image was requested...
January 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28288674/cytochrome%C3%A2-p450-oxidoreductase-deficiency-caused-by-r457h-mutation-in-por-gene-in-chinese-case-report-and-literature-review
#10
REVIEW
Yang Bai, Jinhui Li, Xiaoli Wang
BACKGROUND: Cytochrome P450 oxidoreductase deficiency (PORD) is a rare disease exhibiting a variety of clinical manifestations. It can be difficult to differentiate with other diseases such as 21-hydroxylase deficiency (21-OHD), polycystic ovary syndrome (PCOS) and Antley-Bixler syndrome (ABS). Nearly 100 cases of PORD have been reported worldwide. However, the genetic characters and clinical management are still unclear, especially in China. CASE PRESENTATION: In this study, we report a 27-year-old female Chinese patient who first presented with amenorrhea and recurrence of large ovary cyst...
March 14, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28287942/fdg-pet-ct-pitfalls-in-gynecologic-and-genitourinary-oncologic-imaging
#11
Amish Lakhani, Sairah R Khan, Nishat Bharwani, Victoria Stewart, Andrea G Rockall, Sameer Khan, Tara D Barwick
The role of whole-body positron emission tomography (PET)/computed tomography (CT) with fluorodeoxyglucose ( FDG fluorodeoxyglucose ) is now established in the assessment of many gynecologic and genitourinary malignant tumors. FDG fluorodeoxyglucose PET/CT has been widely adopted for staging assessments in patients with suspected advanced disease, in cases of suspected disease recurrence, and for determining prognosis in a number of malignancies. A number of pitfalls are commonly encountered when reviewing FDG fluorodeoxyglucose PET/CT scans in gynecologic and genitourinary cases; these pitfalls can be classified into those that yield potential false-positive or false-negative results...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28277338/endometrioid-adenocarcinoma-arising-in-a-paratubal-cyst-a-case-report-and-review-of-the-literature
#12
Catherine Chang, Koji Matsuo, Paulette Mhawech-Fauceglia
A 56-year-old G3P3 postmenopausal woman presented with a 5 month history of abnormal uterine bleeding and pelvic pain. A computed tomographic scan revealed a 5 cm right adnexal cystic mass in addition to a thickened, heterogenous endometrium and leiomyomatous uterus. A total laparascopic hysterectomy and bilateral salpingo-oophorectomy with omental and peritoneal biopsy were performed. Gross examination revealed a 12 week size uterus with small fibroids, normal bilateral atrophic ovaries, and a right paratubal cyst...
March 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28277136/the-role-of-nesfatin-1-expression-in-letrozole-induced-polycystic-ovaries-in-the-rat
#13
Yingqiao Xu, Hua Zhang, Qingchun Li, Kaixue Lao, Yanlin Wang
Polycystic ovary syndrome (PCOS) is a complex and heterogeneous endocrine disorder, generally exhibiting the characteristic features of hyperandrogenemia, insulin resistance (IR) and obesity. Nesfatin-1 is derived from the precursor nucleobindin2 (NUCB2), and plays an active role in energy balance, glucose metabolism and most likely gonadal function. In order to explore the role of nesfatin-1, we employed a rat model that uses letrozole to induce PCOS. The PCOS rats exhibited increased body weight, irregular cycles, polycystic ovaries characterized by cysts formed from atretic follicles, and a diminished granulosa layer...
February 21, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28275229/association-between-periodontal-disease-and-polycystic-ovary-syndrome-a-systematic-review
#14
REVIEW
S V Kellesarian, V R Malignaggi, T V Kellesarian, A A Al-Kheraif, M M Alwageet, H Malmstrom, G E Romanos, F Javed
The purpose of the present study was to review systematically the association between periodontal diseases (PDs) and polycystic ovary syndrome (PCOS). To address the focused question, 'Is there a relationship between PD and PCOS?' indexed databases were searched up to October 2016 without time or language restrictions using different combinations of the following key words: PCOS, ovarian cysts, PD, periodontitis, gingival diseases and gingivitis. Letters to the Editor, commentaries, historic reviews, case-report, unpublished articles and animal/experimental studies were excluded...
March 9, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/28248120/sebaceous-adenoma-arising-in-mature-cystic-teratoma-of-the-ovary-case-report
#15
Kristýna Němejcová, Pavel Dundr, Jana Rosmusová, Inna Tučková
We report the case of a 44-year-old female with sebaceous adenoma arising in mature cystic teratoma of the ovary. The patient had a tumor in the left ovary; 125 x 90 x 70 mm. Microscopically, the tumor consisted of structures typical of dermoid cysts. However, large areas of sebaceous proliferation were found. These areas were comprised of sebaceous nodules with features similar to a sebaceous adenoma of the skin. Immunohistochemically, the tumor showed "wild-type" expression of p53 and low proliferative activity (Ki-67 index < 5%)...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28231414/mir-135a-3p-as-a-promising-biomarker-and-nucleic-acid-therapeutic-agent-for-ovarian-cancer
#16
Satoshi Fukagawa, Kohei Miyata, Fusanori Yotsumoto, Chihiro Kiyoshima, Sung Ouk Nam, Haruchika Anan, Takahiro Katsuda, Daisuke Miyahara, Masaharu Murata, Hiroshi Yagi, Kyoko Shirota, Shin'ichiro Yasunaga, Kiyoko Kato, Shingo Miyamoto
Ovarian cancer is the most lethal gynecologic malignancy. Recently, several molecularly targeted anticancer agents have been developed for ovarian cancer; however, its prognosis has remained extremely poor. The development of molecularly targeted therapy, as well as companion diagnostics, is required to improve outcomes for patients with ovarian cancer. In this study, to identify microRNAs involved in the progression of ovarian cancer we analyzed serum microRNAs in patients with ovarian cancer using microRNA array and qRT-PCR and examined the anticancer properties of microRNA expression in ovarian cancer cells...
February 23, 2017: Cancer Science
https://www.readbyqxmd.com/read/28229914/quercetin-exerts-preventive-ameliorative-and-prophylactic-effects-on-cadmium-chloride-induced-oxidative-stress-in-the-uterus-and-ovaries-of-female-wistar-rats
#17
Victor Udo Nna, Umar Zayyanu Usman, Emmanuel Oleba Ofutet, Daniel Udofia Owu
This study examined the possible protective effect of quercetin(QE) on cadmium chloride (CdCl2) - induced reproductive toxicity in female rats. Cadmium (Cd) accumulated in the uterus and ovaries of rats, decreased antioxidants [superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione (GSH)], and raised the concentrations of malondialdehyde (MDA) and hydrogen peroxide (H2O2) in the uterus and ovaries of rats. Serum concentrations of estradiol, progesterone, follicle stimulating hormone and luteinizing hormone decreased significantly after CdCl2 administration...
April 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28228430/atypical-case-of-preterm-ovarian-hyperstimulation-syndrome
#18
Michelle A Durst, Brandy Wicklow, Michael Narvey
Preterm ovarian hyperstimulation syndrome is a rare syndrome in which preterm infant girls have hypogastric, upper leg and labial swelling accompanied by elevated serum oestradiol levels and ovarian follicular cysts on ultrasound. Our case is an infant born at 23 weeks gestational age who at 30 weeks postconceptional age (PCA) developed elevated 17-hydroxyprogesterone on her newborn screen with associated clitoromegaly and a ventral groove on the inferior aspect of the erectile tissue. An initial pelvic ultrasound at 32 weeks PCA demonstrated a normal appearing uterus, but the ovaries were not visualised...
February 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28208952/rare-site-of-parasitic-dermoid-cyst-at-uterovesical-fold-of-peritoneum-with-absent-one-sided-adnexa
#19
Sunita Dubey, Alka Sehgal, Puneeti Ballega, Rps Punia
Teratomas are the most common type of germ cell tumour. It can be congenital or acquired and are usually found in gonads (testes and ovaries). Parasitic dermoid cysts are rare and their actual incidence is unknown. We are reporting a case of 25-year-old gravida two, para one and one living child, who underwent emergency cesarean section in view of symptomatic placenta previa. A parasitic dermoid cyst was found incidently in front of uterus which was attached to uterovasical fold of bladder. This cyst did not show any connection to uterus or adnexa...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208869/mature-cystic-teratoma-with-co-existent-mucinous-cystadenocarcinoma-in-the-same-ovary-a-diagnostic-dilemma
#20
Sanjeet Roy, Sramana Mukhopadhayay, Mayank Gupta, Anuradha Chandramohan
Mature cystic teratoma co-existing with a mucinous cystadenocarcinoma is an infrequently encountered entity with only a handful of cases reported till date. The possibilities in such a case are either a malignant transformation of a benign teratoma into adenocarcinoma or a collision tumor between a mature cystic teratoma and a mucinous tumour of either a primary ovarian surface epithelial-stromal origin or a secondary from a primary gastrointestinal tract tumour. The importance of distinguishing between the two entities has significant bearing on subsequent therapeutic management...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
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