Results 41 to 50 of about 141,242 (314)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Fertility outcome of patients with testicular tumor: before and after treatment

Asian Journal of Andrology, 2014
Testicular cancer (TC) is the most curable type of cancer, with a survival rate of more than 95%. Oncologists are faced with the challenge that gonadotoxic cancer treatments can compromise future fertility, either temporarily or permanently.
Ping Ping, Ben-Hong Gu, Peng Li, Yi-Ran Huang, Zheng Li   +4 more
doaj   +1 more source

Decline in human sperm counts during the past 50 years? [PDF]

, 2005
There is widespread concern that environmental pollutants acting as xenoestrogens may affect human fertility adversely. Whether this has already made an impact on human fertility worldwide remains debatable at the present stage.
Souza, Urban JAD, Pinto, Maxim, Jayachandra, Srinivasa   +2 more
core  

The association between male infertility and sperm disomy: Evidence for variation in disomy levels among individuals and a correlation between particular semen parameters and disomy of specific chromosome pairs

, 2004
BACKGROUND: The association between infertility and sperm disomy is well documented. Results vary but most report that men with severely compromised semen parameters have a significantly elevated proportion of disomic sperm.
Xiao P Zhai, Homa, ST, Christopikou Dimitra, Christopikou, D, Homa, Sheryl T., Zhai, Xiao-Ping, Tempest, Helen G., Dalakiouridou, Maria, Griffin Darren K, David Wright, Wright, David B., Darren K Griffin, Sheryl T Homa, Wright, D, Maria Dalakiouridou, Griffin, DK, Dimitra Christopikou, Wright David, Homa Sheryl T, Dalakiouridou Maria, Tempest Helen G, Tempest, HG, Helen G Tempest, Dalakiouridou, M, Zhai Xiao P, Zhai, XP, Christopikou, Dimitra, Griffin, Darren K.   +27 more
core   +1 more source

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

Obstetric and perinatal outcomes in pregnancies conceived with donor versus partner sperm: a systematic review and meta-analysis

Frontiers in Endocrinology
BackgroundMale-related factors contribute to 30-40% of infertility cases, with donor sperm serving as a critical solution for severe male infertility or paternally inherited genetic disorders.
Junjie Liu, Yanpeng Dai, Zuozhe Song, Xintao Sun, Dongdong Lv, Dehua Zhao   +5 more
doaj   +1 more source

FISH analysis of numerical chromosomal abnormalities in the sperm of robertsonian translocation der(13; 14)(q10;q10) carriers

Frontiers in Genetics, 2022
Fluorescence in situ hybridization analysis of numerical chromosomal abnormalities in the sperm of Robertsonian translocation der (13;14) (q10;q10) carriers has focused on a limited number of chromosomes mainly on chromosome 13, 18, 21, X, and Y.
Saijuan Zhu, Yong Zhu, Feng Zhang, Junping Wu, Ying Chen, Yijuan Sun, Jing Fu, Jiangnan Wu, Min Xiao, Shuo Zhang, Jing Zhou, Caixia Lei, Feng Jiang   +12 more
doaj   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

Advanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li, Shuai Liu, Xinyi Wang, Xinglong Gong, Shouhu Xuan   +4 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

Can We Cryopreserve the Sperm of COVID-19 Patients During the Pandemic?

Frontiers in Endocrinology, 2022
An extreme strain has been placed on healthcare facilities in the COVID-19 era. Initial stage of the pandemic, national and international societies for reproductive medicine suggested the suspension of new IVF treatments and non-essential ...
Yongming Wu, Xiaoxue Zhang, Xiaoxue Zhang, Zhiqiang Wang, Xinyi Xia   +4 more
doaj   +1 more source