Results 131 to 140 of about 612,947 (307)
Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris
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+7 more
wiley +1 more source
The Effect of Assisted Reproductive Technologies on Human Sex Ratios
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+6 more
wiley +1 more source
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+7 more
doaj +1 more source
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+11 more
wiley +1 more source
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+10 more
doaj +1 more source
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+6 more
wiley +1 more source
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+4 more
doaj +1 more source
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+16 more
wiley +1 more source
The mini-micro-epididymal sperm aspiration for sperm retrieval: a study of urological outcomes [PDF]
David M. Nudell+5 more
openalex +1 more source
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+4 more
wiley +1 more source