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Ovarian failure

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https://www.readbyqxmd.com/read/27912078/mouse-double-minute-2-homolog-actively-suppresses-p53-activity-in-oocytes-during-mouse-folliculogenesis
#1
Chen-Xi Zhang, Qin Zhang, Yin-Yin Xie, Xue-Yan He, Cong Xiang, Xiao-Shuang Hou, Ying Zhou, Lai Chen, Guo-Xin Zhang, Geng Liu
The p53 signaling network is indispensible in cellular stress responses and tumor suppression. Negative regulations of p53 by mouse double minute 2 and 4 homologs (MDM2) and (MDM4) are an integrated component of the network and have been implicated in regulating the stress responses and the maintenance of normal development and homeostasis of multiple somatic cell lineages. However, the regulatory role of MDM2 on p53 and stress responses in female germ cells remains undetermined. Here, we used the Cre-loxP system to delete Mdm2 in oocytes at different stages of folliculogenesis in mice...
November 29, 2016: American Journal of Pathology
https://www.readbyqxmd.com/read/27908834/gamma-secretase-inhibitor-impairs-epithelial-to-mesenchymal-transition-induced-by-tgf-%C3%AE-in-ovarian-tumor-cell-lines
#2
M C Pazos, D Abramovich, A Bechis, P Accialini, F Parborell, M Tesone, G Irusta
Ovarian cancer is characterized by being highly metastatic, a feature that represents the main cause of failure of the treatment. This study investigated the effects of γ-secretase inhibition on the TGF-β-induced epithelial-mesenchymal transition (EMT) process in ovarian cancer cell lines. SKOV3 cells incubated in the presence of TGF-β showed morphological and biochemical changes related to EMT, which were blocked by co-stimulation with TGF-β and the γ-secretase inhibitor DAPT. In SKOV3 and IGROV1 cells, the co-stimulation blocked the cadherin switch and the increase in the transcription factors Snail, Slug, Twist and Zeb1 induced by TGF-β...
November 28, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27905697/management-of-infertile-women-with-pelvic-endometriosis-a-literature-review
#3
Elisabeth Guinard, Pierre Collinet, Catherine Lefebvre, Geoffroy Robin, Chrystele Rubod
INTRODUCTION: Endometriosis is a condition that affects women's fertility. Several mechanisms are involved in this process: anatomical changes, mechanical, immune or inflammatory factors, ovarian reserve alterations. There are different types of strategies to treat endometriosis-related infertility: medical treatment, surgical treatment and / or techniques of medically assisted procreation. EVIDENCE ACQUISITION: We tried to consider various therapeutic strategies depending on the stage of the disease in order to offer appropriate management to patients with endometriosis who wish to become pregnant: we reviewed 58 articles between 1985 to 2016 searching in medline using the key words "endometriosis and infertility" and "infertility and endometriosis treatment"...
December 1, 2016: Minerva Ginecologica
https://www.readbyqxmd.com/read/27903524/graft-versus-host-disease-targets-ovary-and-causes-female-infertility-in-mice
#4
Sonoko Shimoji, Daigo Hashimoto, Hidetsugu Tsujigiwa, Kohta Miyawaki, Koji Kato, Shuichiro Takahashi, Reiki Ogasawara, Takashi Jiromaru, Hiromi Iwasaki, Toshihiro Miyamoto, Koichi Akashi, Takanori Teshima
Infertility associated with ovarian failure is a serious late complication for female survivors of allogeneic hematopoietic stem cell transplantation (SCT). While the role of pretransplant conditioning regimen has been well appreciated, increasing application of reduced-intensity conditioning facilitated us to revisit the other factors possibly affecting ovarian function after allogeneic SCT. We have addressed whether donor T-cell mediated graft-versus-host disease (GVHD) could be causally related to female infertility in mice...
November 30, 2016: Blood
https://www.readbyqxmd.com/read/27899309/repeated-misdiagnosis-of-a-relapsed-atypical-anti-nmda-receptor-encephalitis-without-an-associated-ovarian-teratoma
#5
Weihe Zhang, Li Yan, Jinsong Jiao
We present an atypical case of relapsed anti-NMDAR encephalitis in a young female patient without an associated ovarian teratoma. She presented with recurrent seizure attacks with muscle weakness, psychosis, dyskinesia, autonomic failure and insomnia. She was first misdiagnosed as mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) then Hashimoto's encephalopathy due to diffuse cerebral lesions, elevated serum lactic acid concentration, increased amount of thyroid peroxidase and thyroglobulin antibodies in serum and diffuse lesions of the thyroid gland...
November 26, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27891401/premature-ovarian-failure-an-association-with-autoimmune-diseases
#6
Ayesha, Vandana Jha, Deepti Goswami
INTRODUCTION: Premature Ovarian Failure (POF) is the cessation of ovarian function before the age of 40 years. POF is reported to be associated with autoimmune diseases in 20-30% of cases. AIM: Patients presenting with idiopathic POF were screened for the presence of autoimmune disorders. MATERIALS AND METHODS: Twenty patients with idiopathic POF were included in the study. Baseline investigation in all subjects included fasting serum FSH, LH, E2, progesterone, free T3, free T4, Thyroid-Stimulating Hormone (TSH) and Anti-Thyroperoxidase (anti-TPO) antibodies, testosterone and Dehydroepiandrosterone (DHEAS) levels...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890095/an-unexpected-death-due-to-massive-ascites-and-a-giant-mucinous-ovarian-cystadenoma
#7
Masayuki Kashiwagi, Mio Takayama, Tomoko Sugimura, Aya Matsusue, Kenji Hara, Brian Waters, Shin-Ichi Kubo
A female in her thirties fell face down in her room. She was motionless when her sister found her. She was transported to the hospital by ambulance and was in a state of cardiopulmonary arrest on admission. She did not respond to resuscitation. Her abdomen had started to swell 3years before her death. An autopsy was performed to clarify the decedent's cause of death. She was 172cm tall and weighed 146kg. Her maximum abdominal girth was 172.1cm. A subcutaneous hemorrhage measuring 4.5cm in diameter was observed in the epigastric region...
November 2016: Legal Medicine
https://www.readbyqxmd.com/read/27884198/use-of-poly-adp-ribose-polymerase-parp-inhibitors-in-cancer-cells-bearing-ddr-defects-the-rationale-for-their-inclusion-in-the-clinic
#8
REVIEW
Aniello Cerrato, Francesco Morra, Angela Celetti
BACKGROUND: DNA damage response (DDR) defects imply genomic instability and favor tumor progression but make the cells vulnerable to the pharmacological inhibition of the DNA repairing enzymes. Targeting cellular proteins like PARPs, which cooperate and complement molecular defects of the DDR process, induces a specific lethality in DDR defective cancer cells and represents an anti-cancer strategy. Normal cells can tolerate the DNA damage generated by PARP inhibition because of an efficient homologous recombination mechanism (HR); in contrast, cancer cells with a deficient HR are unable to manage the DSBs and appear especially sensitive to the PARP inhibitors (PARPi) effects...
November 24, 2016: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/27876427/fmr1-premutation-not-only-important-in-premature-ovarian-failure-but-also-in-diminished-ovarian-reserve
#9
Ali Eslami, Kamelia Farahmand, Mehdi Totonchi, Tahereh Madani, Ummulbanin Asadpour, Shabnam Zari Moradi, Hamid Gourabi, Anahita Mohseni-Meybodi
It is recognized that FMR1 premutation expansions are associated with premature ovarian failure (POF), but their role in diminished ovarian reserve (DOR) is not clearly established. Moreover, the impact of smaller repeats at the boundary of premutation and normal is less clear. Therefore, we have compared the frequency of these intermediate (45-54 repeats) and premutation (>55) sized FMR1 CGG repeats among a patients group including 188 DOR and 173 POF women and 200 controls. FSH and LH concentrations were also compared between intermediate and premutation ranges in patients...
November 23, 2016: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/27875985/nuclear-envelope-structural-defect-underlies-the-main-cause-of-aneuploidy-in-ovarian-carcinogenesis
#10
Callinice D Capo-Chichi, Toni M Yeasky, Elizabeth R Smith, Xiang-Xi Xu
BACKGROUND: The Cancer Atlas project has shown that p53 is the only commonly (96 %) mutated gene found in high-grade serous epithelial ovarian cancer, the major histological subtype. Another general genetic change is extensive aneuploidy caused by chromosomal numerical instability, which is thought to promote malignant transformation. Conventionally, aneuploidy is thought to be the result of mitotic errors and chromosomal nondisjunction during mitosis. Previously, we found that ovarian cancer cells often lost or reduced nuclear lamina proteins lamin A/C, and suppression of lamin A/C in cultured ovarian epithelial cells leads to aneuploidy...
November 22, 2016: BMC Cell Biology
https://www.readbyqxmd.com/read/27870704/clinical-outcomes-for-stereotactic-ablative-radiotherapy-in-oligometastatic-and-oligoprogressive-gynecological-malignancies
#11
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/27869444/-brca1-and-brca2-pathologists-starting-kit
#12
Petr Škapa
Dysfunction of tumor suppressor genes BRCA1 and BRCA2 is involved in the pathogenesis of malignant tumors, especially breast and ovarian carcinoma. BRCA1/2 genes may be inactivated by germinal and somatic mutations or epigenetic changes. Germinal mutations are responsible for the hereditary breast and ovarian carcinoma syndrome. Defects of BRCA1/2 genes lead to the failure of homologous recombination, the basic mechanism for DNA double strand break repair. The resultant genomic instability is associated with a high risk of malignant transformation of the cell, but it also results in a higher sensitivity of tumors to platinum-based chemotherapeutic compounds which damage DNA structure directly...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27852688/the-role-of-intracytoplasmic-sperm-injection-in-non-male-factor-infertility-in-advanced-maternal-age
#13
Samer Tannus, Weon-Young Son, Ashley Gilman, Grace Younes, Tal Shavit, Michael-Haim Dahan
STUDY QUESTION: Does ICSI improve reproductive outcomes compared with conventional IVF when used for non-male factor infertility in women aged 40 years and over? SUMMARY ANSWER: There is no advantage of ICSI over conventional IVF in women aged 40 years and over when used for non-male factor infertility. WHAT IS KNOWN ALREADY: The use of ICSI has increased dramatically in recent years and is being applied for indications other than male factor infertility...
November 16, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27830391/robotically-assisted-laparoscopic-ovarian-transposition-in-women-with-lower-gastrointestinal-cancer-undergoing-pelvic-radiotherapy
#14
Vasileios D Sioulas, Soledad Jorge, Jing-Yi Chern, Maria B Schiavone, Martin R Weiser, Joanne F Kelvin, Ginger J Gardner, Yukio Sonoda, Nadeem R Abu-Rustum, Karyn A Goodman, Mario M Leitao
BACKGROUND: Pelvic radiotherapy (RT) is a standard component of the management for patients with locally advanced rectal cancer or squamous cell carcinoma of the anus. Pelvic RT leads to permanent and irreversible ovarian failure in young women. This study aimed to determine the effectiveness of robotically assisted laparoscopic ovarian transposition (OT) before RT in women with rectal or anal cancer who wanted to preserve normal ovarian function. METHODS: The study reviewed the medical records of all patients treated at our institution from August 2009 to October 2014 who received robotically assisted laparoscopic OT for rectal or anal cancer before RT...
November 9, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27824942/identifying-maternal-constraints-on-fetal-growth-and-subsequent-perinatal-outcomes-using-a-multiple-embryo-implantation-model
#15
Nigel Pereira, Tyler Cozzubbo, Stephanie Cheung, Zev Rosenwaks, Gianpiero D Palermo, Queenie V Neri
INTRODUCTION: Although the majority of singleton births after in vitro fertilization (IVF) are uncomplicated, studies have suggested that IVF pregnancies may be independently associated with low birth weight (LBW), preterm birth (PTB), and perinatal mortality. These outcomes complicate multiple gestations as expected, but have also been reported in singletons. A multiple embryo implantation model allows for assessment of the early in utero environment, and therefore, assessment of any maternal constraints on developing fetuses...
2016: PloS One
https://www.readbyqxmd.com/read/27802832/reproductive-issues-in-patients-undergoing-hematopoietic-stem-cell-transplantation-an-update
#16
REVIEW
Maurizio Guida, Maria Antonietta Castaldi, Rosa Rosamilio, Valentina Giudice, Francesco Orio, Carmine Selleri
In 1963 George Mathé announced to the world that he had cured a patient of leukaemia by means of a bone-marrow transplant. Since than much progress has been made and nowadays Hematopoietic Stem Cell Transplantation (HSCT) is considered the most effective treatment of numerous severe haematological diseases. Gynaecological complications in HSCT women represent a serious concern for these patients, but often underestimated by clinicians in the view of Overall Survival. The main gynaecological complications of HSCT are represented by: premature ovarian failure (POF), thrombocytopenia-associated menorrhagia, genital symptoms or sexual problems in course of chronic GVHD (cGVHD), osteoporosis, secondary solid tumours due to immunosuppressive drugs to treat cGVHD and severity of cGVHD, and fertility and pregnancy issues...
November 1, 2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27801298/dysregulation-of-mitotic-machinery-genes-precedes-genome-instability-during-spontaneous-pre-malignant-transformation-of-mouse-ovarian-surface-epithelial-cells
#17
Ulises Urzúa, Sandra Ampuero, Katherine F Roby, Garrison A Owens, David J Munroe
BACKGROUND: Based in epidemiological evidence, repetitive ovulation has been proposed to play a role in the origin of ovarian cancer by inducing an aberrant wound rupture-repair process of the ovarian surface epithelium (OSE). Accordingly, long term cultures of isolated OSE cells undergo in vitro spontaneous transformation thus developing tumorigenic capacity upon extensive subcultivation. In this work, C57BL/6 mouse OSE (MOSE) cells were cultured up to passage 28 and their RNA and DNA copy number profiles obtained at passages 2, 5, 7, 10, 14, 18, 23, 25 and 28 by means of DNA microarrays...
October 25, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27798047/common-diseases-as-determinants-of-menopausal-age
#18
Jingmei Li, Mikael Eriksson, Kamila Czene, Per Hall, Kenny A Rodriguez-Wallberg
STUDY QUESTION: Can the diagnosis of common diseases before menopause influence age at natural menopause (ANM) onset? SUMMARY ANSWER: Polycystic ovary syndrome (PCOS) and depression were observed to delay menopause. WHAT IS KNOWN ALREADY: It has been observed that women who undergo early menopause experience a higher burden of health problems related to metabolic syndromes, heart disease and depression, but whether ANM can be influenced by common adult diseases has not been studied extensively...
October 18, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27787477/assessment-of-ovarian-reserve-and-fertility-preservation-strategies-in-children-treated-for-cancer
#19
Laura Guzy, Isabelle Demeestere
INTRODUCTION: The survival rate of chemotherapy treatments of malignant cancer or non- malignant conditions are continuously improving. As a result, there is an increased number of patients who received a gonadotoxic treatment during childhood and who later face fertility issues. Depending on the extent of the damage to the ovaries, acute or late complications may occur. Acute ovarian failure is defined by permanent amenorrhea after a high-risk treatment. When the drugs used are less gonadotoxic, ovarian insufficiency might appear later...
October 27, 2016: Minerva Ginecologica
https://www.readbyqxmd.com/read/27784959/endocrine-manifestations-in-celiac-disease
#20
REVIEW
Hugh James Freeman
Celiac disease (CD) is an autoimmune small intestinal mucosal disorder that often presents with diarrhea, malabsorption and weight loss. Often, one or more associated endocrine disorders may be associated with CD. For this review, methods involved an extensive review of published English-language materials. In children and adolescents, prospective studies have demonstrated a significant relationship to insulin-dependent or type 1 diabetes, whereas in adults, autoimmune forms of thyroid disease, particularly hypothyroidism, may commonly co-exist...
October 14, 2016: World Journal of Gastroenterology: WJG
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