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https://www.readbyqxmd.com/read/28734688/ptgs2-down-regulation-in-cumulus-cells-of-infertile-women-with-endometriosis
#1
Caroline M da Luz, Michele G da Broi, Flávia Cappello Donabela, Cláudia Cristina Paro de Paz, Juliana Meola, Paula A Navarro
A deleterious effect of endometriosis on oocyte quality has been proposed. Evidence suggests that cumulus cells could be used as indirect biomarkers of oocyte quality. The PTGS2 gene, which encodes cyclooxygenase 2 (COX-2), is deregulated in endometriotic lesions and plays a crucial role in the acquisition of oocyte competence. To date, research evaluating PTGS2 expression in cumulus cells of infertile patients with endometriosis has not been conducted. The aim this study was to compare the expression levels of PTGS2 in cumulus cells of infertile women, with and without endometriosis, undergoing ovarian stimulation for intracytoplasmic sperm injection (ICSI)...
July 10, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28724477/oliver-sacks-our-correspondence-about-twins-twin-research-vanishing-twins-syndrome-discordant-sex-in-mz-twins-pregnancy-outcomes-in-ivf-and-icsi-conceived-twins-print-and-media-superfetated-twins-twins-discordant-for-smoking-twins-in-fashion-yale-university
#2
Nancy L Segal
The late neurologist and author, Oliver Sacks, published an insightful 1986 review of Marjorie Wallace's book, The Silent Twins, in the New York Times. Taking exception to his assertion about Sir Francis Galton, I wrote a letter to the Times' editor. The letter was unpublished, but it brought a wonderful response from Sacks himself that is reproduced and examined. Next, brief reviews of twin research concerning the vanishing twin syndrome (VTS), discordant sex in a monozygotic (MZ) twin pair, and multiple pregnancy outcomes from assisted reproductive technology (ART) are presented...
August 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28721836/assisted-reproductive-technologies-a-hierarchy-of-risks-for-conception-pregnancy-outcomes-and-treatment-decisions
#3
M J Davies, A R Rumbold, V M Moore
The use of assisted reproductive technologies (ART) for the treatment of infertility has grown exponentially over the last 20 years, and now accounts for 4% of all births in Australia, and over 1 m births annually around the globe. There is consistent reporting of increased risk of adverse perinatal outcomes and birth defects following infertility treatment. However, change in practice has been stymied by critical knowledge gaps with regards to (a) the relative contribution of patient and treatment factors to adverse outcomes, (b) the independent contribution of specific contemporary treatments and treatment combinations to outcomes, (c) the impact of innovations in laboratory and clinical practice on treatment success and observed risk and (d) changes over time in patient characteristics...
August 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28718894/sperm-cryopreservation-and-assisted-reproductive-technology-outcome-in-patients-with-spinal-cord-injury
#4
A Reignier, J Lammers, C Splingart, D Redhead, J J Labat, S Mirallié, P Barrière, T Fréour
This study aimed to describe spinal cord injured patients' semen characteristics before and after cryopreservation, and assisted reproductive technology cycles outcome compared to the infertile population. Data about sperm analysis and assisted reproductive technology (ART) cycles outcomes for 78 men with spinal cord injury referred for sperm cryopreservation between 1998 and 2013 were retrospectively analysed and compared with a reference group consisting of every Intra Cytoplasmic Sperm Injection (ICSI) cycle performed in our in vitro fertilization unit over the 2009-2014 period...
July 18, 2017: Andrologia
https://www.readbyqxmd.com/read/28718082/low-first-trimester-papp-a-in-ivf-fresh-and-frozen-thawed-pregnancies-likely-due-to-a-biological-cause
#5
Lauren P Hunt, A M McInerney-Leo, S Sinnott, B Sutton, R Cincotta, G Duncombe, J Chua, M Peterson
PURPOSE: The purpose of this study is to confirm a difference in the first-trimester screen maternal biochemistry and false-positive rates (FPR) between pregnancies conceived spontaneously and those conceived via assisted reproductive technologies (ART). METHODS: Retrospective analysis of the complete population of women (17,889 pregnancies) who had undergone first-trimester screening between January 2004 and September 2009 at three private ultrasound clinics in Queensland, Australia was used in the study...
July 17, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28715980/clinical-aspects-of-infertile-47-xyy-patients-a-retrospective-study
#6
Parnaz Borjian Boroujeni, Marjan Sabbaghian, Ahmad Vosough Dizaji, Shabnam Zarei Moradi, Navid Almadani, Faranak Mohammadpour Lashkari, Mohamad Reza Zamanian, Anahita Mohseni Meybodi
47,XYY syndrome is a sex chromosomal anomaly in men, which may be associated with infertility and has an incidence of 0.1% of male births. The clinical and paraclinical characteristics of men suffering from this anomaly have not been fully described. In this retrospective study, we present 37 cases of 47,XYY infertile men with sperm counts varying from normal to azoospermia, referred to the Genetics Laboratory at the Royan Institute, Iran. Thirteen individuals were mosaic and 24 non-mosaics. Non-mosaic patients were classified as azoospermic (nine cases) and normospermic/oligozoospermic men (15 cases)...
July 18, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28715660/elevated-basal-progesterone-levels-are-associated-with-increased-preovulatory-progesterone-rise-but-not-with-higher-pregnancy-rates-in-icsi-cycles-with-gnrh-antagonists
#7
Mehmet Firat Mutlu, Mehmet Erdem, Ilknur Mutlu, Berk Bulut, Ahmet Erdem
OBJECTIVE: To ascertain the association between basal progesterone (P) levels and the occurrence of preovulatory progesterone rise (PPR) and clinical pregnancy rates (CPRs) in ICSI cycles with GnRH antagonists. STUDY DESIGN: Serum P levels of 464 patients were measured on day 2 and day of hCG of cycles. Cycles with basal P levels>1.6ng/mL were cancelled. All embryos were cryopreserved in cycles with P levels≥2ng/mL on the day of hCG. The primary outcome measures were the incidence of PPR (P>1...
June 29, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28710292/the-safety-of-intracytoplasmic-sperm-injection-and-long-term-outcomes
#8
Nigel Pereira, Claire L O'Neill, Vivian Lu, Zev Rosenwaks, Gianpiero D Palermo
The pioneering of intracytoplasmic sperm injection (ICSI) approximately 25 years ago revolutionized the treatment of infertile couples. Today, ICSI remains an indispensable part of assisted reproductive treatments (ART) and has resulted in the birth of millions of babies. The 25th anniversary of ICSI marks a chronologic landmark in its evolving history. This landmark also serves as an opportunity to thoroughly appraise the safety of ICSI and analyze the long-term outcomes of ICSI-conceived children. In this review, we collate and analyze salient data accrued over the past 25 years pertaining to the long-term safety of ICSI and ICSI conceptions...
July 14, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28706366/gnrh-antagonist-cetrorelix-administration-before-hcg-for-protection-of-ovarian-hyperstimulation-syndrome
#9
Sherif A Hebisha, Banan A Aboelazm, H N Sallam
OBJECTIVE: Studying the effect of GnRH antagonist administration on the day of hCG to cases of IVF/ICSI with estradiol level above 5000 ng/dl for protection of ovarian hyperstimulation syndrome. DESIGN: Prospective study. MATERIALS AND METHODS: Sixty patients undergoing controlled hyperstimulation COH, for IVF/ICSI using long agonist and E2 level on the day of hCG, are above 5000 ng/dl, 52 patients received single dose of cetrorelix 0.25 mg on the day of hCG, and 8 patients received two doses of 0...
August 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/28703337/paternal-age-as-an-independent-factor-does-not-affect-embryo-quality-and-pregnancy-outcomes-of-testicular-sperm-extraction-intracytoplasmic-sperm-injection-in-azoospermia
#10
Y S Park, S H Lee, C K Lim, H W Choi, J H An, C W Park, H S Lee, J S Lee, J T Seo
This study was performed to evaluate the independent influence of paternal age affecting embryo development and pregnancy using testicular sperm extraction (TESE)-intracytoplasmic sperm injection (ICSI) in obstructive azoospermia (OA) and nonobstructive azoospermia (NOA). Paternal patients were divided into the following groups: ≤30 years, 31-35 years, 36-40 years, 41-45 years and ≥46 years. There were no differences in the rates of fertilisation or embryo quality according to paternal and maternal age...
July 13, 2017: Andrologia
https://www.readbyqxmd.com/read/28697910/duphaston-and-human-menopausal-gonadotropin-protocol-in-normally-ovulatory-women-undergoing-controlled-ovarian-hyperstimulation-during-in%C3%A2-vitro-fertilization-intracytoplasmic-sperm-injection-treatments-in-combination-with-embryo-cryopreservation
#11
Xiuxian Zhu, Hongjuan Ye, Yonglun Fu
OBJECTIVE: To evaluate endocrine characteristics and clinical outcomes in normal ovulatory patients undergoing controlled ovarian hyperstimulation (COH) with the use of a Duphaston and hMG protocol during in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) treatments in combination with frozen-thawed embryo transfer (FET) compared with the characteristics and outcomes of patients undergoing an Utrogestan and hMG protocol. DESIGN: Prospective controlled study...
July 8, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28697346/-necrozoospermia-from-etiologic-diagnosis-to-therapeutic-management
#12
A Dumont, A-L Barbotin, V Lefebvre-Khalil, V Mitchell, J-M Rigot, F Boitrelle, G Robin
This review describes necrospermia, its diagnosis, causes and management. Sperm vitality is commonly assessed in the laboratory of reproductive biology, with the eosin test or with the hypo-osmotic swelling test. Necrospermia is defined by a percentage of living spermatozoa inferior to 58%, and can be related to male infertility. Several pathological mechanisms may be involved and can be classified either in testicular causes (hyperthyroidism, local hyperthermia, varicocele), or post-testicular causes (epididymal necrospermia, dysregulation of seminal plasma, adult polycystic kidney disease, vasectomy reversal, anti-sperm antibodies) or both (infection, toxic, age, spinal cord injury)...
April 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28693528/impact-of-oocytes-with-clcg-on-icsi-outcomes-and-their-potential-relation-to-pesticide-exposure
#13
Philippe Merviel, Rosalie Cabry, Karen Chardon, Elodie Haraux, Florence Scheffler, Naima-Belhadri Mansouri, Aviva Devaux, Hikmat Chahine, Véronique Bach, Henri Copin, Moncef Benkhalifa
BACKGROUND: Oocyte quality is a key limiting factor in female fertility which is primarily reflected in morphological features. Centrally located cytoplasm granulation (CLCG) is one type of cytoplasmic dimorphism exhibited by oocytes that could be linked to pesticide exposure with a significant risk of decreased ICSI outcomes. METHODS: This retrospective study included 633 women who were part of an intracytoplasmic spermatozoa injection (ICSI) program between 2009 and 2011...
July 10, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28687208/assisted-reproduction-techniques-in-latin-america-the-latin-american-registry-2014
#14
Fernando Zegers-Hochschild, Juan Enrique Schwarze, Javier Crosby, Carolina Musri, Maria Teresa Urbina
Multinational data on assisted reproduction techniques (IVF and intractytoplasmic sperm injection [ICSI], frozen embryo transfer, oocyte donation, preimplantation genetic diagnosis and fertility preservation) were collected from 159 institutions in 15 Latin American countries. A total of 41.34% of IVF-ICSI cycles were conducted in women aged 35-39 years and 23.35% in women aged 40 years and older. After removing freeze-all cases, delivery rate per oocyte retrieval was 25.05% for ICSI and 27.41% for IVF. Multiple births included 20...
June 21, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28682646/embryo-pooling-a-promising-strategy-for-managing-insufficient-number-of-embryos-in-preimplantation-genetic-diagnosis
#15
Xiaokun Hu, Chenhui Ding, Duoduo Zhang, Wen Zhou, Jing Wang, Yanhong Zeng, Jie Lv, Yan-Wen Xu, Can-Quan Zhou
This retrospective study evaluated the embryo pooling strategy for managing insufficient number of embryos in preimplantation genetic diagnosis (PGD) through serial vitrification of cleavage-stage embryos from consecutive cycles, and simultaneous blastocysts biopsy in combination with blastocysts obtained in ultimate fresh cycle. A retrospective analysis of the cumulative pregnancy rate of 68 patients underwent cleavage-stage embryos accumulation (Embryo Pooling Group) and 94 patients underwent one stimulation cycle (Control Group) over a 2-year period were conducted...
July 6, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28675921/cycle-regimens-for-frozen-thawed-embryo-transfer
#16
REVIEW
Tarek Ghobara, Tarek A Gelbaya, Reuben Olugbenga Ayeleke
BACKGROUND: Among subfertile couples undergoing assisted reproductive technology (ART), pregnancy rates following frozen-thawed embryo transfer (FET) treatment cycles have historically been found to be lower than following embryo transfer undertaken two to five days following oocyte retrieval. Nevertheless, FET increases the cumulative pregnancy rate, reduces cost, is relatively simple to undertake and can be accomplished in a shorter time period than repeated in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) cycles with fresh embryo transfer...
July 5, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28674785/follicular-sensitivity-index-fsi-a-novel-tool-to-predict-clinical-pregnancy-rate-in-ivf-icsi-cycles
#17
AbdelGany M A Hassan, Mohamed M M Kotb, Ahmed M A AwadAllah, Nesreen A A Shehata, Amr Wahba
PURPOSE: This study aims to introduce a new tool (the Follicular Sensitivity Index; FSI) for objective assessment of follicular responsiveness to exogenous gonadotropins and to evaluate its ability to predict the clinical pregnancy rate in women with unexplained infertility or tubal factor undergoing IVF/ICSI. METHODS: FSI was calculated as preovulatory follicle count (PFC) × 100,000/[antral follicle count (AFC) × total received FSH doses]. One thousand women were included and were divided according to the FSI tertile values into three groups...
July 3, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28670427/kisspeptin-a-potential-factor-for-unexplained-infertility-and-impaired-embryo-implantation
#18
Aaida Mumtaz, Aqsa Khalid, Zehra Jamil, Syeda Sadia Fatima, Sara Arif, Rehana Rehman
BACKGROUND: Kisspeptin (KP) is a neuropeptide that causes the release of the gonadotropin releasing hormone, which controls hypothalamo pituitary ovarian axis and exerts a number of peripheral effects on reproductive organs. The primary objective of this study was to compare baseline KP levels in females with different types of infertility and identify possible correlations with risk of failure to conceive, preclinical abortion and pregnancy after intracytoplasmic sperm injection (ICSI)...
July 2017: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/28666272/sperm-carried-rnas-play-critical-roles-in-mouse-embryonic-development
#19
Lei Guo, Shi-Bin Chao, Lu Xiao, Zhen-Bo Wang, Tie-Gang Meng, Yuan-Yuan Li, Zhi-Ming Han, Ying-Chun Ouyang, Yi Hou, Qing-Yuan Sun, Xiang-Hong Ou
Recently, numerous studies have reported that the mature sperm contains both coding and non-coding RNAs and the sperm delivers some RNAs to the oocyte at fertilization. However, the functions of the RNAs carried to the oocyte by sperm at fertilization in embryonic development remains a mystery. In this study, the mature spermatozoa were treated with lysolecithin, pronase and RNases (RNase A and RNase H) to remove the sperm-carried RNAs, and then injected into normal mature oocyte. The results showed that after the treatment, the content of the sperm RNAs was decreased by about 90%...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28660655/association-between-total-globozoospermia-and-sperm-chromatin-defects
#20
N Eskandari, M Tavalaee, D Zohrabi, M H Nasr-Esfahani
Globozoospermia is a severe sperm morphological anomaly leading to primary infertility and low fertilisation following intracytoplasmic sperm injection (ICSI). This phenotype is observed in less than 0.1% of infertile men and is determined by small, round-headed spermatozoa with absence of an acrosomal cap, acrosome protease and also cytoskeletal proteins. Failure of oocyte activation is considered as the main cause of fertilisation failure in these individuals post-ICSI. Therefore, artificial oocyte activation (AOA) along with ICSI is commonly implemented...
June 29, 2017: Andrologia
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