Results 51 to 60 of about 5,794 (226)

Sperm retrieval techniques in azoospermic patients: PESA, MESA, TESA, TESE and MICROTESE [PDF]

Einstein (São Paulo), 2009
Azoospermia is defined as the absence of mature spermatozoa in semen analysis after centrifugation. The causes of azoospermia may be related to spermatogenesis defects and classified as non-obstructive azoospermia, or to the obstruction of the efferent ...
Marcelo Vieira, Sidney Glina
doaj  

Sperm is epigenetically programmed to regulate gene transcription in embryos. [PDF]

, 2016
For a long time, it has been assumed that the only role of sperm at fertilization is to introduce the male genome into the egg. Recently, ideas have emerged that the epigenetic state of the sperm nucleus could influence transcription in the embryo ...
Allen, George E, Bradshaw, Charles R, Erkek, Serap, Gaggioli, Vincent, Gurdon, John B, Jullien, Jerome, Kwon, Taejoon, Marcotte, Edward M, Miyamoto, Kei, Peters, Antoine HFM, Simeone, Angela, Teperek, Marta, Zegerman, Philip   +12 more
core   +3 more sources

Hyaluronan Sperm Selection during ICSI (HA-ICSI) Increases Embryo Utilization in Couples with Male Factor Infertility

Fertility & Reproduction
Background: Hyaluronan (HA) sperm selection, utilizing the affinity of mature sperm for HA, has emerged as a technique to enhance the selection of sperm for intracytoplasmic sperm injection (ICSI).
Ashleigh Williams, Sophie Popkiss, Fabrizzio Horta, Robert McLachlan, Deirdre Zander-Fox, Mark P. Green   +5 more
doaj   +1 more source

Micro-dissection testicular sperm extraction as an alternative for sperm acquisition in the most difficult cases of Azoospermia: Technique and preliminary results in India

Journal of Human Reproductive Sciences, 2013
Context: Non-obstructive azoospermia (NOA) is an unfavorable prognostic condition for male infertility since spermatogenesis is disrupted. Sperm retrieval (SR) coupled with intracytoplasmic sperm injection (ICSI) is the only option for men with NOA who ...
Mohamed C Ashraf, Sankalp Singh, Dharma Raj, Sujatha Ramakrishnan, Sandro C Esteves   +4 more
doaj   +1 more source

Switchable genome editing via genetic code expansion [PDF]

, 2018
Multiple applications of genome editing by CRISPR-Cas9 necessitate stringent regulation and Cas9 variants have accordingly been generated whose activity responds to small ligands, temperature or light.
Asami, Maki, Luk, Louis Y. P., Patel, Sanjay G., Perry, Anthony C. F., Suzuki, Toru, Tsai, Yu-Hsuan   +5 more
core   +2 more sources

A first‐trimester mechanistic framework integrating three Physiopathologic biomarker domains for pre‐eclampsia classification

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To develop and internally validate a mechanistic, three‐domain framework for early classification and prediction of pre‐eclampsia (PE) using first‐trimester angiogenic, uteroplacental, and maternal vascular biomarkers. Methods In a prospective cohort of 1925 singleton pregnancies screened at 11 to 13.6 weeks, placental growth factor (
Johnatan Torres‐Torres, Salvador Espino‐y‐Sosa, Raigam Jafet Martinez‐Portilla, Elsa Romelia Moreno‐Verduzco, Irma Eloisa Monroy‐Muñoz, Juan Mario Solis‐Paredes, Javier Perez Duran, Hector Borboa‐Olivares, Lourdes Rojas‐Zepeda   +8 more
wiley   +1 more source

The Role of Psychological Distress in the Relationship between Personality Dimensions and Pregnancy Outcome of Women Undergoing Assisted Reproductive Treatment (IVF/ICSI)

Iranian Journal of Psychiatry, 2023
Objective: The aim of this study was to determine the role played by psychological distress in the relation between personality dimensions and pregnancy outcome of women undergoing in vitro fertilization/Intra-Cytoplasmic Injections (IVF/ICSI) treatment.
Hosna Mirzaasgari, Fereshte Momeni, Abbas Pourshahbaz, Farahnaz Keshavarzi, Masoud Hatami   +4 more
doaj   +1 more source

Follicular and endocrine dose responses according to anti-Müllerian hormone levels in IVF patients treated with a novel human recombinant FSH (FE 999049) [PDF]

, 2015
Objective: To study the association between serum anti-Mullerian hormone (AMH) levels and follicular development and endocrine responses induced by increasing doses (5.2-12.1 mu g/day) of a novel recombinant human FSH (rhFSH, FE 999049) in patients ...
Andersen, Anders Nyboe, Arce, Joan-Carles, Barri, Pedro, Bosch, Ernesto, De Sutter, Petra, Fernández-Sánchez, Manuel, García-Velasco, Juan Antonio, Klein, Bjarke M, Mannaerts, Bernadette, Visnova, Hana   +9 more
core   +2 more sources

Metroplasty before IVF in women with a T‐shaped uterus: A clinical challenge

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract A T‐shaped uterus is a uterine malformation, which can be either congenital or acquired, potentially impairing fertility and increasing the risk of miscarriage. Diagnosis primarily relies on three‐dimensional ultrasound and hysteroscopy. Hysteroscopic metroplasty is the standard surgical intervention aimed at restoring normal uterine anatomy ...
Fabio Barra, Irene Gazzo, Alessandro Favilli, Consuelo Russo, Giulia Monaco, Franco Alessandri, Sandro Gerli, Luis Alonso Pacheco, Caterina Exacoustos, Simone Ferrero   +9 more
wiley   +1 more source

Are intra follicular estradiol and oocytes quality in women undergoing assisted reproductive technology different between the right and left ovaries? An observational study

European Journal of Obstetrics & Gynecology and Reproductive Biology: X, 2019
Objective: Controlled Ovarian Stimulation (COS) for In-Vitro Fertilization (IVF) or Intracytoplasmic Sperm Injection (ICSI) is considered as an assisted reproduction technology.
Robabeh Taheripanah, Marzieh Zamaniyan, Mohammadali Karimzadeh Meybodi, Mohamad hossein Amir-arjmand, Ardalan Mansouri, Anahita Taheripanah, Narges Malih   +6 more
doaj   +1 more source