Results 131 to 140 of about 612,947 (307)

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

Integrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli, Al‐Sayed Al‐Soudy, Mariangela Norcia, Stefania Galdiero, Sara Palladino, Emanuela Cirillo, Gianluca Polese, Anna Di Cosmo   +7 more
wiley   +1 more source

The Effect of Assisted Reproductive Technologies on Human Sex Ratios

Australian and New Zealand Journal of Obstetrics and Gynaecology, EarlyView.
ABSTRACT Background Modern assisted reproductive technology (ART), including pre‐implantation genetic testing for aneuploidy (PGT‐A), has opened new avenues in understanding early embryonic events and has simultaneously raised questions about the impact of ART itself on sex ratios.
Ektoras X. Georgiou, Yossi Mizrachi, Rebecca Kelley, Sharyn Stock‐Myer, John Stevens, David K. Gardner, Alex Polyakov   +6 more
wiley   +1 more source

Does the FNA sperm retrieval failure prediction model work well for current NOA individuals undertaking risk screening before the operation? Model validation, high-risk population identification and potential alternative sperm retrieval exploration

BMC Medical Informatics and Decision Making
Background Non-obstructive azoospermia (NOA), the severe type of male infertility. The objective of this study was to evaluate the predictive accuracy of a prediction model of sperm retrieval failure with fine needle aspiration (FNA).
Xiaohui Jiang, Dingming Li, Yi Zheng, Yinxian Li, Hengzhou Bai, Guicheng Zhao, Yi Zhang, Yue Ma   +7 more
doaj   +1 more source

Rapid detection of mouse spermatogenic defects by testicular cellular composition analysis via enhanced deep learning model

Andrology, EarlyView.
Abstract Background Histological analysis of the testicular sections is paramount in infertility research but tedious and often requires months of training and practice. Objectives Establish an expeditious histopathological analysis of mutant mice testicular sections stained with commonly available hematoxylin and eosin (H&E) via enhanced deep learning
Nianfei Ao, Min Zang, Yue Lu, Yiping Jiao, Haoda Lu, Chengfei Cai, Xiangxue Wang, Xin Li, Minge Xie, Tingting Zhao, Jun Xu, Eugene Yujun Xu   +11 more
wiley   +1 more source

Predictors of sperm retrieval success in first-time and repeated Micro-TESE for nonobstructive azoospermia

Future Science OA
Introduction Microdissection testicular sperm extraction (micro-TESE) is the preferred sperm retrieval method, although success rates vary based on factors such as age and hormone levels.
Sulieman Alriyalat, Mohammad Ghassab Deameh, Hamzeh Farraj, Jad Khaled Alsmadi, Baha’ Aldeen Bani Irshid, Hammam Abu Rahmeh, Ahmad Khaled Awawdeh, Mohammad Ahmad Mubarak, Ali Fawzey Ababneh, Wa’el Ahmad Bani Amer, Mohammad Al-Zubi   +10 more
doaj   +1 more source

Testicular histopathology and its association with germ cell numbers, serum concentrations of reproductive hormones, and semen quality

Andrology, EarlyView.
Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas, Nina Mørup, Trine H. Johannsen, Anders Juul, Lise Aksglaede, Sofia B. Winge, Kristian Almstrup   +6 more
wiley   +1 more source

The predictive value of parameters of clinical presentations for sperm yield in patients with nonobstructive azoospermia receiving microdissection testicular sperm extraction

Urological Science, 2017
Objective: We analyzed a cohort of nonobstructive azoospermia (NOA) patients receiving microdissection testicular sperm extraction (mTESE) to examine the relationship of sperm yield and the parameters of clinical presentations.
Ming-Hsuan Ku, I-Shen Huang, Alex TL. Lin, Kuang-Kuo Chen, William J. Huang   +4 more
doaj   +1 more source

A WHO 2021‐based comprehensive scheme outlining sperm parameters’ associations with IVF outcomes in PGT‐A cycles

Andrology, EarlyView.
Abstract Objective To examine the association between semen parameters, assessed according to World Health Organization (WHO)‐2021 criteria, and paternal body mass index (BMI) and age, with embryological and clinical outcomes in ICSI cycles involving preimplantation genetic testing for aneuploidy (PGT‐A).
Rossella Mazzilli, Danilo Cimadomo, Federica Innocenti, Marilena Taggi, Greta Chiara Cermisoni, Sara Ginesi, Lisa Dovere, Laura Albricci, Maurizio Guido, Maria Rosaria Campitiello, Susanna Ferrero, Antonio Capalbo, Alberto Vaiarelli, Filippo Maria Ubaldi, Alberto Ferlin, Laura Rienzi, Gianluca Gennarelli   +16 more
wiley   +1 more source

The mini-micro-epididymal sperm aspiration for sperm retrieval: a study of urological outcomes [PDF]

, 1998
David M. Nudell, J. Conaghan, Roger A. Pedersen, C. Givens, Eldon D. Schriock, P.J. Turek   +5 more
openalex   +1 more source

Effects of AZFc (b2/b4, b1/b3, b2/b3, and gr/gr) deletions and primary duplications on the outcomes of the first intracytoplasmic sperm injection treatment cycle: A single‐center retrospective cohort study

Andrology, EarlyView.
Abstract Background Current advances in high‐throughput sequencing technology enable the precise identification of Y chromosome microdeletion and primary duplication in infertile couples, but the mechanism and clinical significance of these mutations in assisted reproductive techniques remain unclear.
Linlin Li, Xiangyin Liu, Xinying Wang, Hongguo Zhang, Ruizhi Liu   +4 more
wiley   +1 more source