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proteomic ivf

W Niżański, A Partyka, S Prochowska
Conventional microscopic semen analysis does not provide precise information on the fertilizing potential of a male. The traditional basis for semen evaluation is that male fertility is dependent on production of a "proper" concentration/number of motile, morphologically normal spermatozoa in excess to achieve conception. Many independent studies, especially in human medicine, have demonstrated that the absolute number of spermatozoa does not accurately determine fertility, but their functional competence. Many functional tests of spermatozoa are developed over the last decades...
September 2016: Reproduction in Domestic Animals, Zuchthygiene
R D Nerenz
Treatment for many infertile couples often consists of in vitro fertilization (IVF) but an estimated 70% of IVF cycles fail to produce a live birth. In an attempt to improve the live birth rate, the vast majority of IVF cycles performed in the United States involve the transfer of multiple embryos, a practice that increases the risk of multiple gestation pregnancy. This is a concern because multiple gestation pregnancies are associated with an increased incidence of maternal and fetal complications and significant cost associated with the care of preterm infants...
2016: Advances in Clinical Chemistry
Tom Trapphoff, Martyna Heiligentag, Jenny Simon, Nora Staubach, Thorsten Seidel, Kathrin Otte, Thomas Fröhlich, Georg J Arnold, Ursula Eichenlaub-Ritter
STUDY QUESTION: Can supplementation of media with a glutathione (GSH) donor, glutathione ethyl ester (GEE), prior to vitrification protect the mouse oocyte from oxidative damage and critical changes in redox homeostasis, and thereby improve cryotolerance? SUMMARY ANSWER: GEE supplementation supported redox regulation, rapid recovery of spindle and chromosome alignment after vitrification/warming and improved preimplantation development of mouse MII oocytes. WHAT IS KNOWN ALREADY: Cryopreservation may affect mitochondrial functionality, induce oxidative stress, and thereby affect spindle integrity, chromosome segregation and the quality of mammalian oocytes...
September 7, 2016: Molecular Human Reproduction
Irina A Tarasova, Anna A Lobas, Urh Černigoj, Elizaveta M Solovyeva, Barbara Mahlberg, Mark V Ivanov, Tanja Panić-Janković, Zoltan Nagy, Marina L Pridatchenko, Andras Pungor, Blaž Nemec, Urška Vidic, Jernej Gašperšič, Nika Lendero Krajnc, Jana Vidič, Mikhail V Gorshkov, Goran Mitulović
Affinity depletion of abundant proteins such as HSA is an important stage in routine sample preparation prior to MS/MS analysis of biological samples with high range of concentrations. Due to the charge competition effects in electrospray ion source that results in discrimination of the low-abundance species, as well as limited dynamic range of MS/MS, restricted typically by three orders of magnitude, the identification of low-abundance proteins becomes a challenge unless the sample is depleted from high-concentration compounds...
September 2016: Electrophoresis
Tina Rødgaard, Peter M H Heegaard, Henrik Callesen
Although IVF has been performed routinely for many years to help couples with fertility problems and in relation to modern breeding of farm animals, pregnancy rates after transfer to a recipient have not improved during the last decade. Early prediction of the viability of in-vitro developed embryos before the transfer to a recipient still remains challenging. Presently, the predominant non-invasive technique for selecting viable embryos is based on morphology, where parameters such as rates of cleavage and blastocyst formation as well as developmental kinetics are evaluated mostly subjectively...
November 2015: Reproductive Biomedicine Online
Francisco Dominguez, Marcos Meseguer, Belen Aparicio-Ruiz, Paloma Piqueras, Alicia Quiñonero, Carlos Simón
OBJECTIVE: To develop a diagnostic tool for embryo implantation potential with the use of proteomic fingerprinting combined with time-lapse morphokinetic analysis. DESIGN: Retrospective cohort study. SETTING: University-affiliated private in vitro fertilization center. PATIENT(S): Seventeen infertile patients undergoing intracytoplasmic sperm injection (ICSI) from our ovum donation program. INTERVENTION(S): No patient intervention...
October 2015: Fertility and Sterility
Qi Zhao, Zheng Guo, Shanhua Piao, Chunsheng Wang, Tiezhu An
BACKGROUND: Differentiated cell nuclei can be reprogrammed to a pluripotent state in several ways, including incubation with oocyte extracts, transfer into enucleated oocytes, and induced pluripotent stem cell technology. Nuclear transfer-mediated reprogramming has been proven to be the most efficient method. Maternal factors stored in oocytes have critical roles on nuclear reprogramming and early embryo development, but remain elusive. RESULTS: In this study, we showed most of porcine oocytes became nuclear matured at 33 h of IVM and the rate had no significant difference with oocytes at 42 h of IVM (p > 0...
2015: Proteome Science
Thais Regiani, Fernanda Bertuccez Cordeiro, Lívia do Vale Teixeira da Costa, Jéssica Salgueiro, Karina Cardozo, Valdemir Melechco Carvalho, Kayla Jane Perkel, Daniel Suslik Zylbersztejn, Agnaldo Pereira Cedenho, Edson Guimarães Lo Turco
Endometriosis is a chronic gynecological condition that affects 10-32% of women of reproductive age and may lead to infertility. The study of protein profiles in follicular fluid may assist in elucidating possible biomarkers related to this disease. For this, follicular fluid samples were obtained from women with tubal factor or minimal male factor infertility who had pregnancy outcomes after in vitro fertilization (IVF) treatment (control group, n = 10), women with endometriosis (endometriosis group, n = 10), along with the endometrioma from these same patients were included (endometrioma group, n = 10)...
2015: Systems Biology in Reproductive Medicine
Moncef Benkhalifa, Aicha Madkour, Noureddine Louanjli, Nouzha Bouamoud, Brahim Saadani, Ismail Kaarouch, Hikmat Chahine, Omar Sefrioui, Philippe Merviel, Henri Copin
The development of in vitro fertilization (IVF) techniques for infertility management has led to the investigation of the proteome of follicular fluid and oocyte. In addition, different markers contributing to oocyte maturation and embryo development potential have been reported in the literature. Different techniques were utilized to analyze whole proteome or single protein markers in follicular fluid and oocytes, particularly in animal models. Data from several studies have generated large amounts of information, however, an ideal profile to predict the best oocytes and embryos suitable for implantation are still to be uncovered...
August 2015: Expert Review of Proteomics
John M Twigt, Karel Bezstarosti, Jeroen Demmers, Jan Lindemans, Joop S E Laven, Régine P Steegers-Theunissen
BACKGROUND: The investigation of the human follicle fluid proteome has gained much interest in the search of new markers as predictors for in vitro fertilization and intracytoplasmic sperm injection (IVF/ICSI) treatment outcome. Follicular fluid folate, as substrate of one carbon (1-C) metabolism, affects follicular metabolism and oocyte and embryo quality. From this background, we aim to identify a folate-related follicle fluid proteome that associates with IVF/ICSI treatment outcome...
August 2015: European Journal of Clinical Investigation
Brett Nixon, Elizabeth G Bromfield, Matthew D Dun, Kate A Redgrove, Eileen A McLaughlin, R John Aitken
One of the most common lesions present in the spermatozoa of human infertility patients is an idiopathic failure of sperm-egg recognition. Although this unique cellular interaction can now be readily by-passed by assisted reproductive strategies such as intracytoplasmic sperm injection (ICSI), recent large-scale epidemiological studies have encouraged the cautious use of this technology and highlighted the need for further research into the mechanisms responsible for defective sperm-egg recognition. Previous work in this field has established that the sperm domains responsible for oocyte interaction are formed during spermatogenesis prior to being dynamically modified during epididymal maturation and capacitation in female reproductive tract...
July 2015: Asian Journal of Andrology
Alberuni M Zamah, Maria E Hassis, Matthew E Albertolle, Katherine E Williams
BACKGROUND: Follicular fluid is a unique biological fluid in which the critical events of oocyte and follicular maturation and somatic cell-germ cell communication occur. Because of the intimate proximity of follicular fluid to the maturing oocyte, this fluid provides a unique window into the processes occurring during follicular maturation. A thorough identification of the specific components within follicular fluid may provide a better understanding of intrafollicular signaling, as well as reveal potential biomarkers of oocyte health for women undergoing assisted reproductive treatment...
2015: Clinical Proteomics
Natalie K Binder, John R Sheedy, Natalie J Hannan, David K Gardner
The rate of obesity among men of reproductive age has tripled in the last three decades. Previously, we demonstrated that paternal obesity resulted in impaired preimplantation developmental kinetics, compromised post-compaction metabolism and decreased blastocyst cell number when embryos were generated in vivo. Subsequently, using in vitro fertilization we found embryos of obese males to have altered metabolism before compaction, reduced inner cell mass cell number and retarded fetal development--the difference between these two studies being the method of embryo generation and the presence or absence of seminal plasma, respectively...
May 2015: Molecular Human Reproduction
Yan-Ting Wu, Yan Wu, Jun-Yu Zhang, Ning-Ning Hou, Ai-Xia Liu, Jie-Xue Pan, Jie-Yang Lu, Jian-Zhong Sheng, He-Feng Huang
PURPOSE: To study the differences in protein expression profiles of follicular fluid (FF) between controlled ovarian hyperstimulation (COH) and natural ovulatory cycles. METHODS: Twelve infertile women undergoing in vitro fertilization and embryo transfer (IVF-ET), with matched clinical information, were retrospectively recruited in the IVF center of our university hospital, including six undergoing COH and another six with natural cycles. FF was sampled from dominant follicles with mature oocytes...
March 2015: Journal of Assisted Reproduction and Genetics
David K Gardner, Marcos Meseguer, Carmen Rubio, Nathan R Treff
BACKGROUND: Transfer of more than a single embryo in an IVF cycle comes with the finite possibility of a multiple gestation. Even a twin pregnancy confers significant risk to both mother and babies. The move to single-embryo transfer for all patients will be greatly facilitated by the ability to quantify embryo viability. Developments in time-lapse incubation systems have provided new insights into the developmental kinetics of the human preimplantation embryo. Advances in molecular methods of chromosomal analysis have created platforms for highly effective screening of biopsied embryos, while noninvasive analysis of embryo physiology reveals more about the embryo than can be determined by morphology alone...
November 2015: Human Reproduction Update
Aditi S Ambekar, Dhanashree S Kelkar, Sneha M Pinto, Rakesh Sharma, Indira Hinduja, Kusum Zaveri, Akhilesh Pandey, T S Keshava Prasad, Harsha Gowda, Srabani Mukherjee
CONTEXT: Polycystic ovary syndrome (PCOS), a major cause of anovulatory infertility, is characterized by arrested follicular growth. Altered protein levels in the follicular fluid surrounding the ovum may reflect the molecular defects of folliculogenesis in these women. OBJECTIVE: To identify differentially regulated proteins in PCOS by comparing the follicular fluid protein repertoire of PCOS with healthy women. METHODS: The follicular fluid samples were collected from PCOS and normo-ovulatory women undergoing in vitro fertilization...
February 2015: Journal of Clinical Endocrinology and Metabolism
Christine Légaré, Arnaud Droit, Frédéric Fournier, Sylvie Bourassa, André Force, Francine Cloutier, Roland Tremblay, Robert Sullivan
Male factors account for 40% of infertility cases. The identification of differentially expressed proteins on spermatozoa from fertile and infertile men can help in the elucidation of the molecular basis of male infertility. The aim of this study was to compare sperm proteomes from 3 different groups: fertile men, normozoospermic men consulting for infertility, and normozoospermic men with an impaired capacity for fertilization (IVF-failure). We used differential proteomics with isobaric tags for relative and absolute quantitation (iTRAQ) labeling, and LC-MS analysis to identify proteins that are differentially expressed...
December 5, 2014: Journal of Proteome Research
Linlin Sui, Lei An, Kun Tan, Zhuqing Wang, Shumin Wang, Kai Miao, Likun Ren, Li Tao, Shuzhi He, Yong Yu, Jinzhou Nie, Qian Liu, Lei Xing, Zhonghong Wu, Zhuocheng Hou, Jianhui Tian
As the interface between the mother and the developing fetus, the placenta is believed to play an important role in assisted reproductive technology (ART)-induced aberrant intrauterine and postnatal development. However, the mechanisms underlying aberrant placentation remain unclear, especially during extraembryonic tissue development and early stages of placental formation. Using a mouse model, this investigation provides the first comparative proteomic analysis of in vivo (IVO) and in vitro-produced (IVP) extraembryonic tissues and placentas after IVO fertilization and development, or in vitro fertilization and culture, respectively...
December 2014: Biology of Reproduction
Gu-Feng Xu, Jun-Yu Zhang, Hai-Tao Pan, Shen Tian, Miao-E Liu, Tian-Tian Yu, Jing-Yi Li, Wei-Wen Ying, Wei-Miao Yao, Xian-Hua Lin, Yuan Lv, Wen-Wen Su, Xiao-Qun Ye, Fang-Hong Zhang, Jie-Xue Pan, Ye Liu, Cheng-Liang Zhou, Dan Zhang, Xin-Mei Liu, Yi-Min Zhu, Jian-Zhong Sheng, He-Feng Huang
CONTEXT: The cardiovascular dysfunction in children born with assisted reproductive technologies has been of great concern. However, the association of ovarian hyperstimulation syndrome (OHSS), a complication of assisted reproductive technologies, with worse cardiovascular functions and underlying mechanism remains unknown. OBJECTIVES: The objective of the study was to assess the cardiovascular functions of children born to mothers with OHSS and investigate the underlying regulator(s)...
December 2014: Journal of Clinical Endocrinology and Metabolism
Xinghua Pan
Single-cell analysis heralds a new era that allows "omics" analysis, notably genomics, transcriptomics, epigenomics and proteomics at the single-cell level. It enables the identification of the minor subpopulations that may play a critical role in a biological process of a population of cells, which conventionally are regarded as homogeneous. It provides an ultra-sensitive tool to clarify specific molecular mechanisms and pathways and reveal the nature of cell heterogeneity. It also facilitates the clinical investigation of patients when a very low quantity or a single cell is available for analysis, such as noninvasive prenatal diagnosis and cancer screening, and genetic evaluation for in vitro fertilization...
2014: Single Cell Biology
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