Results 141 to 150 of about 2,944,740 (334)

Single‐cell sequencing reveals potential novel insights into appendage‐patterning and joint‐development in a spider

Developmental Dynamics, EarlyView.
Abstract Background Jointed appendages represent one of the key innovations of arthropods, and thus understanding the development and evolution of these structures is important for the understanding of the evolutionary success of Arthropoda. In this paper, we analyze a cell cluster that was identified in a previous single‐cell sequencing (SCS ...
Brenda I. Medina‐Jiménez, Graham E. Budd, Ralf Janssen   +2 more
wiley   +1 more source

Multidimensional morphological analysis of live sperm based on multiple-target tracking

Computational and Structural Biotechnology Journal
Manual semen evaluation methods are subjective and time-consuming. In this study, a deep learning algorithmic framework was designed to enable non-invasive multidimensional morphological analysis of live sperm in motion, improve current clinical sperm ...
Hao Yang, Mengmeng Ma, Xiangfeng Chen, Guowu Chen, Yi Shen, Lijun Zhao, Jianfeng Wang, Feifei Yan, Difeng Huang, Huijie Gao, Hao Jiang, Yuqian Zheng, Yu Wang, Qian Xiao, Ying Chen, Jian Zhou, Jie Shi, Yi Guo, Bo Liang, Xiaoming Teng   +19 more
doaj   +1 more source

Validation of the polysemen admixture on viability and acrosomal morphology of boar spermatozoa [PDF]

, 2007
Semen were collected using artificial vagina (AV), from 5 large white boars aged 2-2.5 years twice a week for 16 weeks in each of the two seasons, early rainy (ER) and late rainy (LR) seasons, to determine the effects of multiple semen pool admixture on ...
Ogbuewu, IP, Okoli, IC, Okoro, VM, Umesiobi, DO   +3 more
core  

Embryonic development of the Mediterranean starfish Hacelia attenuata

Developmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo, Laurent Gilletta, Janet Chenevert, Stefania Castagnetti   +3 more
wiley   +1 more source

Chromatin packaging and morphology in ejaculated human spermatozoa: evidence of hidden anomalies in normal spermatozoa [PDF]

, 2017
This study aimed to investigate the association between anomalies in sperm chromatin packaging, morphology and fertilization in patients undergoing routine in-vitro fertilization (IVF) or subzonal insemination (SUZI).
Bianchi, Patrizia Grace, Campana, Aldo, Manicardi, Gian Carlo, Sakkas, Denny, Urner, Françoise   +4 more
core  

Cardiac remodeling and arrhythmia in a mouse model of Depdc5 haploinsufficiency

Epilepsia, EarlyView.
Abstract Objective Some ion channel genes linked to developmental and epileptic encephalopathy (DEE) are also linked to cardiac arrhythmia, leading to the hypothesis that predisposition to cardiac arrhythmias may contribute to the complex disease presentation of DEE and possibly to the mechanism of sudden unexpected death in epilepsy.
Roberto Ramos‐Mondragon, Shuyun Wang, Qinghua Liu, Chunling Chen, Alexander M. Greiner, Abigail M. Marx, Maya Shih, Jack M. Parent, Barry London, Lori L. Isom   +9 more
wiley   +1 more source

Impact of donor mare and stallion identity on the likelihood of pregnancy after transfer of in vitro produced embryos

Equine Veterinary Journal, EarlyView.
Abstract Background The success of in vitro embryo production (IVEP) is influenced by donor mare and stallion. Objectives To determine whether donor mare and stallion influence the pregnancy rate after transfer of in vitro produced (IVP) blastocysts and to identify factors influencing the likelihood of obtaining one or more pregnancies from a single ...
M. Papas, T. A. E. Stout, J. C. M. Vernooij, B. Leemans, L. Arnold, M. M. Beitsma, L. I. Wijnands, M. de Ruijter‐Villani, S. Colleoni, G. Lazzari, C. Galli, A. Claes   +11 more
wiley   +1 more source

Sperm Motility and Morphology after Preparation Using the Percoll Gradient Method Compared with the IxaPrep Gradient Method

Siriraj Medical Journal, 2003
In order to compare the Percell gradient and IxaPrep gradient methods, the percentage of progressively motile sperm and the percentage of sperm with normal morphology were examined. Thirty five normal semen sample were collected from the male partners of
Pitak Laokirkkiat, Darapa Manoch, Suphoj Changeakwong, Somboon Kunathikom   +3 more
doaj  

Age, embryo donor status, and insemination with chilled semen all predispose to persistent breeding‐induced endometritis in warmblood mares

Equine Veterinary Journal, EarlyView.
Abstract Background Persistent breeding‐induced endometritis (PBIE) is a common reason for mares failing to establish pregnancy. Objective To examine the hypothesis that advancing mare age and embryo donor status predispose to PBIE and compromise fertility.
Tom Stout, Rik Serrarens, Bart Leemans, Anthony Claes   +3 more
wiley   +1 more source

Semen analysis in fertile patients undergoing vasectomy: reference values and variations according to age, length of sexual abstinence, seasonality, smoking habits and caffeine intake

São Paulo Medical Journal
CONTEXT AND OBJECTIVE: Recent studies have shown regional and population differences in semen characteristics. The objective was to establish reference values for semen analysis and to verify the effect that age, length of sexual abstinence, seasonality,
Bernardo Passos Sobreiro, Antonio Marmo Lucon, Fábio Firmbach Pasqualotto, Jorge Hallak, Kelly Silveira Athayde, Sami Arap   +5 more
doaj   +1 more source