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https://www.readbyqxmd.com/read/28640938/obstructive-sleep-apnoea-and-polycystic-ovary-syndrome-a-comprehensive-review-of-clinical-interactions-and-underlying-pathophysiology
#1
REVIEW
Hassan Kahal, Ioannis Kyrou, Abd A Tahrani, Harpal S Randeva
Polycystic ovary syndrome (PCOS) is the most prevalent endocrine disorder in women of reproductive age. PCOS is associated with multiple co-morbidities including, obesity, insulin resistance and type 2 diabetes, as well as mood disorders and impaired quality of life (QoL). Obstructive sleep apnoea (OSA) is also a common medical condition that is often undiagnosed, particularly in women. OSA is associated with a similar spectrum of comorbidities to that observed in PCOS, including manifestations of the metabolic syndrome and impaired QoL, whilst obesity frequently constitutes a common denominator in the pathophysiology of both OSA and PCOS...
June 22, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28636541/methylenetetrahydrofolate-reductase-c677t-polymorphism-and-the-risks-of-polycystic-ovary-syndrome-an-updated-meta-analysis-of-14-studies
#2
Lihong Wang, Wenting Xu, Caihong Wang, Mengyu Tang, Yujia Zhou
Some studies have reported an association between the Methylenetetrahydrofolate reductase (MTHFR) C667T genetic variant and risk of polycystic ovary syndrome (PCOS), although the results remain controversial. A systematic search was conducted on PubMed, Web of Science, EMBASE, Ovid, Chinese National Knowledge Databases and WanFang databases with relevant keywords. Fourteen studies of sixteen distinct populations involving 1478 PCOS cases and used to conduct a meta-analysis. The T allele was not significantly associated with increased risk of PCOS [OR: 1...
June 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28635410/pelvic-floor-dysfunction-and-polycystic-ovary-syndrome
#3
Seyed Abdolvahab Taghavi, Fatemeh Bazarganipour, Helen Allan, Zahra Khashavi, Nasrin Reisi, Nadiyeh Dosha, Fatemeh Aghili, Mohadeseh Keramati, Sedigheh Zahedi, Amireh Aji-Ramkani
The purpose of this study was to compare the prevalence of pelvic floor dysfunction (PFD) symptoms in patients with and without polycystic ovary syndrome (PCOS) and among different PCOS phenotypes. This was a case-control study. All participants were assessed using ultrasonography to determine the presence or absence of polycystic ovaries (PCO) and allocated to the case or control group (having healthy females whose husbands were diagnosed with male infertility). The case group was then further subdivided into the three phenotypes according to the presence or absence of menstrual dysfunction (M), hyperandrogenism (HA) and PCO on ultrasonography...
February 21, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28635136/knockdown-of-tor-causing-ovarian-diapause-in-a-genetically-stable-brachypterous-strain-of-nilaparvata-lugens
#4
Fangzhou Liu, Kaiyin Li, Wanlun Cai, Jing Zhao, Yulan Zou, Hongxia Hua
Brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), is one of the most damaging pests of rice crops. BPH is a migratory insect with a delayed ovarian development in migrants classified as reproductive diapause. The molecular mechanism of reproductive diapause remains unclear, although we suspect it might be regulated by one or more nutrient signaling pathways. The target of rapamycin (TOR) pathway regulates cell growth in response to nutritional information, which raised a hypothesis that TOR mediates BPH reproductive diapause...
June 20, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28634792/impairments-of-cadmium-on-vitellogenin-accumulation-in-the-hepatopancreas-of-freshwater-crab-sinopotamon-henanense
#5
Jian Yang, Hui Sun, Yu Qian, Jie Yang
During ovary maturation of crabs, vitellogenin (Vg), a precursor molecule of vitellin (Vn) needed for embryogenesis, can be produced in large quantities in the hepatopancreas and then transported to the ovary by the hemolymph. In the present study, effects of Cd on Vg accumulation in the hepatopancreas and Vg transportation of the freshwater crab Sinopotamon henanense were investigated. We also studied the impacts of Cd on the mRNA expression of genes involved in energy metabolism, protein metabolism, and metallothionein (MT) and glutathione (GSH) synthesis...
June 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28634012/different-expression-of-sox17-gene-during-gametogenesis-between-scallop-chlamys-farreri-and-vertebrates
#6
Shaoshuai Liang, Zhifeng Zhang, Dandan Yang, Yingying Chen, Zhenkui Qin
SOX17, a member of SRY-related high-mobility-group box (SOX) family, involves in endoderm formation, angiogenesis and carcinogenesis, and its expression characteristics are different in spermatogenesis among several vertebrates. In this study, we cloned a full-length cDNA sequence of sox17 from Zhikong scallop Chlamys farreri, and determined its expression characteristics in gonad at mRNA and protein levels. The cDNA sequence was 2802 bp in length, predicted to encode a protein of 511 amino acids and contained a conservative HMG-box of SOX family, while lacked the C-terminal region of SOX17 comparing to vertebrates...
June 17, 2017: Gene Expression Patterns: GEP
https://www.readbyqxmd.com/read/28633616/sclerosing-stromal-tumor-mimicking-a-pregnancy-luteoma-case-report-of-a-diagnostically-challenging-entity-further-complicated-by-the-presence-of-metastatic-signet-ring-cell-carcinoma-from-the-stomach
#7
Meral Uner, Alp Usubutun
Sclerosing stromal tumors of the ovary are very rare. We report the case of a 29-year-old pregnant woman who presented with a history of preterm labor and gestational hypertension. A huge mass measuring 30 cm in greatest dimension was recognized on the right ovary during cesarean section. Signet ring cell infiltration was seen during intraoperative frozen section consultation. She underwent a right salpingo-oophorectomy, and the permanent diagnosis was sclerosing stromal tumor infiltrated by signet ring cells...
June 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28632173/gene-expression-profiling-reveals-potential-players-of-left-right-asymmetry-in-female-chicken-gonads
#8
Zhiyi Wan, Yanan Lu, Lei Rui, Xiaoxue Yu, Fang Yang, Chengfang Tu, Zandong Li
Most female birds develop only a left ovary, whereas males develop bilateral testes. The mechanism underlying this process is still not completely understood. Here, we provide a comprehensive transcriptional analysis of female chicken gonads and identify novel candidate side-biased genes. RNA-Seq analysis was carried out on total RNA harvested from the left and right gonads on embryonic day 6 (E6), E12, and post-hatching day 1 (D1). By comparing the gene expression profiles between the left and right gonads, 347 differentially expressed genes (DEGs) were obtained on E6, 3730 were obtained on E12, and 2787 were obtained on D1...
June 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28631993/ovarian-ecdysteroid-biosynthesis-and-female-germline-stem-cells
#9
Tomotsune Ameku, Yuto Yoshinari, Ruriko Fukuda, Ryusuke Niwa
The germline stem cells (GSCs) are critical for gametogenesis throughout the adult life. Stem cell identity is maintained by local signals from a specialized microenvironment called the niche. However, it is unclear how systemic signals regulate stem cell activity in response to environmental cues. In our previous article, we reported that mating stimulates GSC proliferation in female Drosophila. The mating-induced GSC proliferation is mediated by ovarian ecdysteroids, whose biosynthesis is positively controlled by Sex peptide signaling...
February 8, 2017: Fly
https://www.readbyqxmd.com/read/28631655/erratum-squash-cytodiagnosis-of-synchronous-papillary-serous-carcinoma-of-ovary-and-endometrium-with-demonstration-of-serous-tubal-intraepithelial-carcinoma-as-a-precursor-lesion
#10
(no author information available yet)
[This corrects the article DOI: 10.4103/0377-4929.200039].
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28631536/should-ovaries-be-removed-or-not-in-early-stage-cervical-adenocarcinoma-a-multicenter-retrospective-study-of-105-patients
#11
Jun Hu, Xiaobing Jiao, Zhifeng Yang, Heng Cui, Hongyan Guo, Yumei Wu, Lirong Zhu
The study population consisted of 105 patients with stage IA to IIB cervical adenocarcinoma (AC) who underwent radical hysterectomy and pelvic lymphadenectomy from three institutions between 1994 and 2015, including 86 patients with bilateral salpingo-oophorectomy (BSO) and 19 patients with ovarian preservation operation. Ovarian metastasis were diagnosed in 3 of 86 patients in BSO group with an incidence rate of 3.5% (3/86). Among the 19 patients with ovarian preservation, none developed an ovarian recurrence in the follow-up (2-71 months)...
June 20, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28630466/comparative-effectiveness-of-9-ovulation-induction-therapies-in-patients-with-clomiphene-citrate-resistant-polycystic-ovary-syndrome-a-network-meta-analysis
#12
Yiping Yu, Lanlan Fang, Ruizhe Zhang, Jingyan He, Yujing Xiong, Xiaoyi Guo, Qingyun Du, Yan Huang, Yingpu Sun
The comparative efficacies of ovulation-induction treatments in patients with clomiphene citrate-resistant (CCR) polycystic ovary syndrome (PCOS) are not well known. Therefore, we conducted a network meta-analysis to rank the reproductive efficacies of these treatments. We ultimately included 26 randomized clinical trials with 2722 participants and 9 types of therapies: clomiphene citrate (CC), metformin, letrozole, follicle stimulating hormone (FSH), human menopausal gonadotropin (hMG), unilateral laparoscopic ovarian drilling (ULOD), bilateral laparoscopic ovarian drilling (BLOD), the combination of metformin with letrozole (metformin+letrozole), and the combination of metformin with CC (metformin+CC)...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630112/rapid-evolution-of-ovarian-biased-genes-in-the-yellow-fever-mosquito-aedes-aegypti
#13
Carrie A Whittle, Cassandra G Extavour
Males and females exhibit highly dimorphic phenotypes, particularly in their gonads, which is believed to be driven largely by differential gene expression. Typically, the protein sequences of genes upregulated in males, or male-biased genes, evolve rapidly as compared to female-biased and unbiased genes. To date, the specific study of gonad-biased genes remains uncommon in metazoans. Here, we identified and studied a total of 2,927, 2,013 and 4,449 coding-sequences (CDS) with ovary-biased, testis-biased and unbiased expression respectively in the yellow-fever mosquito Aedes aegypti The results showed that ovary-biased and unbiased CDS had higher nonsynonymous to synonymous substitution rates (dN/dS) and lower optimal codon usage (those codons that promote efficient translation) than testis-biased genes...
June 19, 2017: Genetics
https://www.readbyqxmd.com/read/28630100/nlrp2-and-faf1-deficiency-blocks-early-embryogenesis-in-the-mouse
#14
Hui Peng, Hai-Jun Liu, Fang Liu, Yuyun Gao, Jing Chen, Jianchao Huo, Jinglin Han, Tianfang Xiao, Wenchang Zhang
Nlrp2 is a maternal effect gene specifically expressed by mouse ovaries; deletion of this gene from zygotes is known to result in early embryonic arrest. In the present study, we identified FAF1 protein as a specific binding partner of the NLRP2 protein in both mouse oocytes and preimplantation embryos. In addition to early embryos, both Faf1 mRNA and protein were detected in multiple tissues. NLRP2 and FAF1 proteins were co-localized to both the cytoplasm and nucleus during the development of oocytes and preimplantation embryos...
June 19, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28630099/kndy-neurone-activation-prior-to-the-lh-surge-of-the-ewe-is-disrupted-by-lps
#15
Chrysanthi Fergani, Jean Routly, David Jones, Lucy Pickavance, Robert Frank Smith, Hilary Dobson
In the ewe, steroid hormones act on the hypothalamic arcuate nucleus (ARC) to initiate the GnRH/LH surge. Within the ARC, steroid signal transduction may be mediated by dopamine, β-endorphin or neuropeptide Y (NPY) expressing cells, as well as those co-localising kisspeptin, neurokinin B (NKB), and dynorphin (termed KNDy). We investigated the time during the follicular phase when these cells become activated (i.e., co-localise c-Fos) relative to the timing of the LH surge onset and may, therefore, be involved in the surge generating mechanism...
June 19, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28630098/comparative-micrornaome-analysis-of-the-testis-and-ovary-of-the-chinese-giant-salamander
#16
Rui Chen, Jian Du, Lin Ma, Li-Qing Wang, Sheng-Song Xie, Chang-Ming Yang, Xian-Yong Lan, Chuan-Ying Pan, Wu-Zi Dong
MicroRNAs (miRNAs) are 18-24 nucleotides non-coding RNAs that regulate gene expression by post-transcriptional suppression of mRNA. The Chinese giant salamander (CGS, Andrias davidianus), which is an endangered species, has become one of important models of animal evolution; however, no miRNA studies on this species have been conducted. In this study, two small RNA libraries of CGS ovary and testis were constructed using deep sequencing technology. A bioinformatics pipeline was developed to distinguish miRNA sequences from other classes of small RNAs represented in the sequencing data...
June 19, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28629922/vaccination-with-a-codon-optimized-a27l-containing-plasmid-decreases-virus-replication-and-dissemination-after-vaccinia-virus-challenge
#17
Osmarie Martínez, Ariana Bravo Cruz, Saritza Santos, Maite Ramírez, Eric Miranda, Joanna Shisler, Miguel Otero
Smallpox is a disease caused by Variola virus (VARV). Although eradicated by WHO in 1980, the threat of using VARV on a bioterror attack has increased. The current smallpox vaccine ACAM2000, which consists of live vaccinia virus (VACV), causes complications in individuals with a compromised immune system or with previously reported skin diseases. Thus, a safer and efficacious vaccine needs to be developed. Previously, we reported that our virus-free DNA vaccine formulation, a pVAX1 plasmid encoding codon-optimized VACV A27L gene (pA27LOPT) with and without Imiquimod adjuvant, stimulates A27L-specific production of IFN-γ and increases humoral immunity 7days post-vaccination...
June 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28629378/microrna-130b-is-involved-in-bovine-granulosa-and-cumulus-cells-function-oocyte-maturation-and-blastocyst-formation
#18
Pritam Bala Sinha, Dawit Tesfaye, Franca Rings, Munir Hossien, Michael Hoelker, Eva Held, Christaine Neuhoff, Ernst Tholen, Karl Schellander, Dessie Salilew-Wondim
BACKGROUND: Oocyte maturation and preimplantation embryo development are controlled by array of genes that are post-transcriptionally regulated by microRNAs. With respect to this, previously, we identified altered expression of microRNA-130b (miR-130b) during oocyte maturation. Here, we aimed to investigate the role of miR-130b in bovine granulosa and cumulus cell function, oocyte maturation and preimplantation embryo development using gain- and loss-of- function approach. METHODS: For this study, the granulosa cells, cumulus cells and the oocytes were collected from ovaries obtained from slaughterhouse...
June 19, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28628327/impact-of-the-niemann-pick-c1-gene-mutation-on-the-total-cellular-glycomics-of-cho-cells
#19
Jun-Ichi Furukawa, Minami Soga, Kazue Okada, Ikuko Yokota, Jinhua Piao, Tetsumi Irie, Takumi Era, Yasuro Shinohara
Niemann-Pick disease type C (NPC) is an autosomal recessive lipid storage disorder, and the majority of cases are caused by mutations in the NPC1 gene. In this study, we clarified how a single gene mutation in the NPC1 gene impacts the cellular glycome by analyzing the total glycomic expression profile of Chinese hamster ovary cell mutants defective in the Npc1 gene (Npc1 KO CHO cells). A number of glycomic alterations were identified, including increased expression of lactosylceramide, GM1, GM2, GD1, various neolacto-series glycosphingolipids, and sialyl-T (O-glycan), which was found to be the major sialylated protein-bound glycan, as well as various N-glycans, which were commonly both fucosylated and sialylated...
June 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28628258/tankyrase-inhibition-regulates-corpus-luteum-development-and-luteal-function-in-gonadotropin-treated-rats
#20
Accialini Paula, Irusta Griselda, Bechis Andres, Bas Diana, Parborell Fernanda, Abramovich Dalhia, Tesone Marta
Tankyrases are physiological regulators of Axin, a protein involved in several cellular processes, including Wnt signaling. Here, we investigated the effect of a specific Tankyrase inhibitor (XAV939) in follicular-luteal dynamics, and its possible relationship with ovarian vascular development. Studies were designed to analyze the effect of intrabursa administration of XAV939 in gonadotropin-treated prepubertal rats. In particular, we examined follicle and corpus luteum development, steroidogenesis, angiogenic markers, and apoptotic parameters...
June 19, 2017: Molecular Reproduction and Development
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