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https://www.readbyqxmd.com/read/28447513/clinical-utility-of-different-anti-m%C3%A3-llerian-hormone-amh-assays-for-the-purpose-of-pregnancy-prediction
#1
Joanna Liss, Michal Kunicki, Adam Czyzyk, Ewa Pastuszek, Judyta Zabielska, Blazej Meczekalski, Krzysztof Lukaszuk
PURPOSE: Comparison of outcomes of IVF cycles where the AMH levels was measured with five different AMH kits: Immunotech (IOT), Beckman Coulter II Gen. RUO, Beckman Coulter II Gen. IVD (BC II IVD), Ansh Labs ultrasensitive (Ansh) and the automated Elecsys Roche assay. METHODS: Retrospective analysis of clinical data for 3693 cycles. RESULTS: In women < 35 years with low (<0.6 ng/ml) and high (>1.4 ng/ml) AMH concentrations, and in those > 39 years with medium (≥0...
April 27, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28445721/nacho-mediates-nicotinic-acetylcholine-receptor-function-throughout-the-brain
#2
Jose A Matta, Shenyan Gu, Weston B Davini, Brian Lord, Edward R Siuda, Anthony W Harrington, David S Bredt
Neuronal nicotinic acetylcholine receptors (nAChRs) participate in diverse aspects of brain function and mediate behavioral and addictive properties of nicotine. Neuronal nAChRs derive from combinations of α and β subunits, whose assembly is tightly regulated. NACHO was recently identified as a chaperone for α7-type nAChRs. Here, we find NACHO mediates assembly of all major classes of presynaptic and postsynaptic nAChR tested. NACHO acts at early intracellular stages of nAChR subunit assembly and then synergizes with RIC-3 for receptor surface expression...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28444453/bizarre-soft-tissue-tumour-on-the-gluteus-muscle-a-case-report-of-spontaneous-chronic-expanding-haematoma
#3
Yasuaki Tohma, Yoshio Mii, Yasuhito Tanaka
Chronic expanding haematoma (CEH) is rare and refers to a gradually increasing haematoma that is not absorbed after surgery and trauma. This report highlights unusual mass occurring on the gluteus muscle, and the aim is to indicate the diagnostic method. It is necessary to consider the mechanism of the occurrence and to know the characters of CEH. The patient was a 51-year-old man who had noticed a soft mass on his right hip. The mass had gradually increased to 10 cm in size over the year. CT images revealed a haematoma...
April 25, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28437259/utility-of-esophageal-mucosal-impedance-as-a-diagnostic-test-for-esophageal-disease
#4
Dhyanesh A Patel, Michael F Vaezi
PURPOSE OF REVIEW: The aim of this review is to summarize the use of direct mucosal impedance (MI) for the evaluation and management of esophageal diseases. RECENT FINDINGS: Esophageal multichannel intraluminal impedance with pH (MII-pH) monitoring has been considered the most sensitive test for gastroesophageal reflux disease (GERD), but recent studies have failed to establish impedance parameters that reliably predict treatment response to medical and surgical GERD therapies...
April 21, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28428939/effects-of-sperm-insemination-on-the-final-meiotic-maturation-of-mouse-oocytes-arrested-at-metaphase-i-after-in-vitro-maturation
#5
Jeong Yoon, Kyoung-Mi Juhn, San-Hyun Yoon, Yong Ko, Jin-Ho Lim
OBJECTIVE: The aims of this study were to investigate whether fertilization could induce the resumption of meiosis in mouse oocytes arrested at metaphase I (MI) after in vitro maturation (IVM), and to investigate the effect of Ca(2)(+) chelator treatment at the time of fertilization on the transition from MI to metaphase II (MII). METHODS: MII-stage and arrested MI-stage mouse oocytes after IVM were fertilized, and then embryonic development was monitored. Blastocysts from each group were transferred into 2...
March 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28424461/a-lack-of-coordination-between-sister-chromatids-segregation-and-cytokinesis-in-the-oocytes-of-b6-y-tir-xy-sex-reversed-female-mice
#6
Jia-Qiao Zhu, Seang Lin Tan, Teruko Taketo
The B6.Y(TIR) (XY) mouse develops bilateral ovaries despite the expression of the testis-determining gene Sry during gonadal differentiation. We reported that the oocytes of the XY female are defective in their cytoplasm, resulting in a failure in the second meiotic division after activation or fertilization in vitro. However, the mechanism of meiotic failure or the cause of infertility remained to be clarified. In the present study, we obtained mature oocytes from XY females by superovulation and confirmed that these oocytes also fail in zygotic development...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28421494/chapter-10-human-oocyte-vitrification
#7
Laura Rienzi, Ana Cobo, Filippo Maria Ubaldi
Discovery and widespread application of successful cryopreservation methods for MII-phase oocytes was one of the greatest successes in human reproduction during the past decade. Although considerable improvements in traditional slow-rate freezing were also achieved, the real breakthrough was the result of introduction of vitrification. Here we describe the method that is most commonly applied for this purpose, provides consistent survival and in vitro developmental rates, results in pregnancy and birth rates comparable to those achievable with fresh oocytes, and does not result in higher incidence of gynecological or postnatal complications...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28420500/does-different-bmi-influence-oocyte-and-embryo-quality-by-inducing-fatty-acid-in-follicular-fluid
#8
Parvaneh Mirabi, Mohammad Javad Chaichi, Sedighe Esmaeilzadeh, Seyed Gholam Ali Jorsaraei, Ali Bijani, Mahjobeh Ehsani
OBJECTIVE: We aimed to assess the effects of obesity-related follicular fluid (FF) fatty acids (FAs) on the number and quality of oocytes, good embryo quality rate, and pregnancy rate. MATERIALS AND METHODS: This prospective cohort study was conducted on 105 infertile women under the age of 38, who underwent intracytoplasmic sperm injection (ICSI) from March 2015 to October 2015. They were grouped into three body mass index (BMI) categories. The fatty acids composition of the FF was analyzed by GC-MS head space method...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28420479/andrographolide-disrupts-meiotic-maturation-by-blocking-cytoskeletal-reorganisation-and-decreases-the-fertilisation-potential-of-mouse-oocytes
#9
Hong-Xing Liang, Sheng-Sheng Lu, Zheng Yan, Yan-Ping Kuang, Xiang-Xing Zhu, Zhi-Guang Yan, Tong Du, Wei-Ran Chai, Hui Long, Qi-Feng Lyu
Andrographolide (AG) is a diterpenoid lactone isolated from the stem and leaves of Andrographis paniculata Nees that is used for the effective treatment of infectious diseases in Asian countries. Previous studies have reported adverse effects of AG on female fertility in rodents; however, the underlying mechanisms are unknown. The aim of the present study was to investigate the effects of AG on the IVM of mouse oocytes and their fertilisation potential. Immature oocytes incubated for 6, 14 or 24h in medium containing 5, 10 or 20μM AG showed time- and dose-dependent decreases in maturation rates compared with the control group...
April 19, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28414972/an-lc-ms-ms-method-for-quantification-of-ac0010-a-novel-mutant-selective-epidermal-growth-factor-receptor-egfr-inhibitor-and-its-metabolites-in-human-plasma-and-the-application-to-a-pharmacokinetic-study
#10
Lu Wang, Xin Zheng, Weicong Wang, Pei Hu, Ji Jiang
AC0010 is an irreversible, mutant-selective EGFR inhibitor that effectively inhibits EGFR active and T790M resistance mutations in non-small cell lung cancer (NSCLC). A sensitive ultra-performance liquid chromatography - tandem mass spectrometry (UPLC-MS/MS) method was developed and fully validated for determining AC0010 and its metabolites in human plasma. The samples were purified by solid-phase extraction (SPE) columns and separated on a BEH C18 column. Electrospray ionization (ESI) in positive ion mode and multiple reaction monitoring (MRM) were used to monitor the ion transitions of AC0010 (m/z 488→257) and its metabolites M1 (m/z 474→403), M2 (m/z 504→487), M4 (m/z 434→377), M7 (m/z 490→405), MII-1 (m/z 651→434) and MII-2 (m/z 609→434)...
March 28, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28399989/endo-sirna-deficiency-results-in-oocyte-maturation-failure-and-apoptosis-in-porcine-oocytes
#11
Wanxin Liu, Qi Zhao, Shanhua Piao, Chunsheng Wang, Qingran Kong, Tiezhu An
Both microRNAs (miRNAs) and endogenous small interfering RNAs (endo-siRNAs) play key regulatory roles in gene expression. Some studies have demonstrated that the function of miRNA is suppressed in mouse oocytes, suggesting that endo-siRNA, not miRNA, is essential for female meiosis. This finding has yet to be confirmed in other species. In this study, by knockdown of DICER1, DROSHA and its cofactor DiGeorge syndrome critical region 8 (DGCR8) in porcine oocytes, we found that the proportion of oocytes with DICER1 deficiency that developed to meiosis II (MII) stage was significantly lower than oocytes with DROSHA and DGCR8 deficiency (39...
April 12, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28398152/multichannel-intra-luminal-impedance-signals-variability-during-gastro-oesophageal-activities
#12
Bahaa Al-Sheikh, V Chandrasekar, Tom Stuebe
Multichannel intra-luminal impedance (MII) technique has been proven to be a successful diagnostic tool in detecting and displaying activities inside the oesophagus. It improves the diagnostic capability of oesophageal disorders since it gives accurate and more in-depth information about the activities inside the oesophagus, especially reflux episodes. A comparison is presented between normal and abnormal adults in terms of variability in MII signals during baselines and reflux episodes. A comparative study of episode duration for normal and abnormal subjects is presented...
May 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28384851/effect-of-antioxidants-%C3%AE-mercaptoethanol-and-cysteamine-on-assisted-reproductive-technology-in-vitro
#13
Mohsen Nikseresht, Mehdi Akbartabar Toori, Hamid Reza Rahimi, Ali Reza Fallahzadeh, Iraj Ragerdi Kahshani, Seyedeh Fatemeh Hashemi, Solmaz Bahrami, Reza Mahmoudi
INTRODUCTION: Oocyte Culture of Germinal Vesicle (GV) and its growth improves Assisted Reproductive Technology (ART) invitro and infertility. Inappropriate culture medium environment, low quality of oocytes, increase in Oxidative Stress (OS) events, Reactive Oxygen Species (ROS) and free radicals production are the main factors that result in unsuccessful Invitro Maturation (IVM) and decrease in reproduction. AIM: The present study was conducted with the aim to evaluate the effect of β-mercaptoethanol (BME) and Cysteamine (CYS) on IVM improvement, embryo fertilization and development of blastocyst of mouse immature oocyte...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28384225/ambulatory-24-hour-multichannel-intraluminal-impedance-ph-monitoring-and-high-resolution-endoscopy-distinguish-patients-with-non-erosive-reflux-disease-from-those-with-functional-heartburn
#14
Chuanlian Chu, Quanlin Du, Changqing Li, Linlu Zhang, Xiaoyan Zhou, Fang Zuo, Yanmin Zhang, Fang Li, Guofeng Xie, Yanqing Li
AIMS: To assess the contribution of 24-h esophageal multichannel intraluminal impedance and pH (MII-pH) monitoring and high resolution endoscopy (HRE) with i-scan imaging in differentiating non erosive reflux disease (NERD) from functional heartburn (FH). METHODS: This is a retrospective cohort study of patients with heartburn from the Endoscopy Unit. NERD patients and FH patients were defined by 24-h MII-pH monitoring and white light endoscopy. Minimal mucosal changes were assessed by HRE with i-scan imaging...
2017: PloS One
https://www.readbyqxmd.com/read/28384068/-cell-migration-is-the-ontology-group-differentially-expressed-in-porcine-oocytes-before-and-after-in-vitro-maturation-a-microarray-approach
#15
Wiesława Kranc, Joanna Budna, Adrian Chachuła, Sylwia Borys, Artur Bryja, Marta Rybska, Sylwia Ciesiółka, Ewa Sumelka, Michał Jeseta, Klaus P Brüssow, Dorota Bukowska, Paweł Antosik, Małgorzata Bruska, Michał Nowicki, Maciej Zabel, Bartosz Kempisty
Maturation of cumulus-oocyte complexes (COCs) is crucial for further successful monospermic fertilization, embryo growth, and implantation. All these events are accompanied by proliferation and differentiation of cumulus cells. The migration of COCs to the oviduct after ovulation and the interaction between female gametes and/or embryos with maternal tissues are still poorly recognized on the molecular level. This study was aimed to first demonstrate the mRNA expression profile of cell migration markers during different stages of porcine oocytes maturation and developmental capability in vitro...
April 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28380238/three-1d-cyanide-bridged-m-ni-pd-pt-mn-ii-coordination-polymer-synthesis-crystal-structure-and-magnetic-properties
#16
Jingwen Shi, Chongchong Xue, Lingqian Kong, Daopeng Zhang
Three tetracyanide-containing building blocks K2[M(CN)4] (M = Ni, Pd, Pt) and one semi-closed macrocycle seven-coordinated manganese(II) compound have been employed to assemble cyanide-bridged heterometallic complexes, resulting in three cyanide-bridged MII-MnII complexes: [Mn(L)][Ni(CN)4] · 2H2O (1) [Mn(L)][Pd(CN)4] (2) and [Mn(L)][Pt(CN)4] (3) (L = 2,6-bis[1-(2-(N-methylamino)ethylimino)ethyl]pyridine). Single-crystal X-ray diffraction analysis shows their similar one-dimensional structure consisting of the alternating [Mn(L)]2+ species and [M(CN)4]2- building blocks, generating a cyanide-bridged neutral polymeric chain...
2017: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/28375676/tyrosine-phosphorylation-of-an-actin-binding-protein-girdin-specifically-marks-tuft-cells-in-human-and-mouse-gut
#17
Daisuke Kuga, Kaori Ushida, Shinji Mii, Atsushi Enomoto, Naoya Asai, Masato Nagino, Masahide Takahashi, Masato Asai
Tuft cells (TCs) are minor components of gastrointestinal epithelia, characterized by apical tufts and spool-shaped somas. The lack of reliable TC-markers has hindered the elucidation of its role. We developed site-specific and phosphorylation-status-specific antibodies against Girdin at tyrosine-1798 (pY1798) and found pY1798 immunostaining of mouse jejunum clearly depicted epithelial cells closely resembling TCs. This study aimed to validate pY1798 as a TC-marker. Double-fluorescence staining of intestines was performed with pY1798 and known TC-markers, for example, hematopoietic-prostaglandin-D-synthase (HPGDS), or doublecortin-like kinase 1 (DCLK1)...
April 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28364522/spindlin-1-is-essential-for-metaphase-ii-stage-maintenance-and-chromosomal-stability-in-porcine-oocytes
#18
Jeong-Woo Choi, Ming-Hui Zhao, Shuang Liang, Jing Guo, Zi-Li Lin, Ying-Hua Li, Yu-Jin Jo, Nam-Hyung Kim, Xiang-Shun Cui
Study question: What is the function of Spindlin 1 (Spin1) in metaphase II stage oocytes in pigs? Summary answer: Depletion of Spin1 induces spontaneous oocyte activation and overexpression of Spin1 causes multinuclear formation through induction of DNA damage in porcine oocytes. What is known already: Little is known about the function of Spin1 in oocytes and embryos. In mouse oocytes, Spin1 is specifically expressed during gametogenesis and is essential for meiotic resumption...
March 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28349625/effects-of-melatonin-on-maturation-histone-acetylation-autophagy-of-porcine-oocytes-and-subsequent-embryonic-development
#19
Zhen Chen, Xiaoyuan Zuo, Hui Li, Renyun Hong, Biao Ding, Chengxue Liu, Di Gao, Hui Shang, Zubing Cao, Weiping Huang, Xiaorong Zhang, Yunhai Zhang
Melatonin (MLT) is an endogenous hormone with roles in animal germ cell development. However, the effect of MLT on porcine oocyte maturation and its underlying mechanisms remain largely unknown. Here, we investigated the effects of exogenous MLT on oocyte maturation, histone acetylation, autophagy and subsequent embryonic development. We found that 1 nmol/L MLT supplemented in maturation medium was the optimal concentration to promote porcine oocyte maturation and subsequent developmental competence and quality of parthenogenetic embryos...
March 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28333241/dysmorphic-patterns-are-associated-with-cytoskeletal-alterations-in-human-oocytes
#20
Mariabeatrice Dal Canto, Maria Cristina Guglielmo, Mario Mignini Renzini, Rubens Fadini, Clarissa Moutier, Maria Merola, Elena De Ponti, Giovanni Coticchio
STUDY QUESTION: Are specific morphological anomalies in human mature oocytes, as revealed by transmitted light microscopy, associated with intrinsic damage to the meiotic spindle and actin cytoskeleton? SUMMARY ANSWER: Aggregates of smooth endoplasmic reticulum (SER) and domains of centrally localized granular cytoplasm (GC) reflect intrinsic damage to the oocyte cytoskeleton, namely alterations in spindle size, chromosome misalignment and cortical actin disorganization...
April 1, 2017: Human Reproduction
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