Results 51 to 60 of about 566,665 (344)

Tight junction between endothelial cells: the interaction between nanoparticles and blood vessels

Beilstein Journal of Nanotechnology, 2016
Since nanoparticles are now widely applied as food additives, in cosmetics and other industries, especially in medical therapy and diagnosis, we ask here whether nanoparticles can cause several adverse effects to human health.
Yue Zhang, Wan-Xi Yang
doaj   +1 more source

Long-Term Follow Up of the Erectile Function of Testicular Cancer Survivors

Frontiers in Endocrinology, 2019
The diagnosis of testicular cancer (TC) can have a considerable and persistent impact on a patient's sexuality, especially given its location. The high prevalence of TC in young adults, and the good prognosis, explain the great interest in sexual ...
Francesco Pallotti, Alessandra Petrozzi, Francesco Cargnelutti, Antonio Francesco Radicioni, Andrea Lenzi, Donatella Paoli, Francesco Lombardo   +6 more
doaj   +1 more source

A novel stepwise micro-TESE approach in non obstructive azoospermia [PDF]

, 2016
Background: The purpose of the study was to investigate whether micro-TESE can improve sperm retrieval rate (SRR) compared to conventional single TESE biopsy on the same testicle or to contralateral multiple TESE, by employing a novel stepwise micro ...
Casciani, V, DE NUNZIO, Cosimo, Dente, Donato, Franco, Giorgio, Greco, Alessia, Greco, E., Greco, Pf, Leonardo, Costantino, Minasi, Mg, Scarselli, F   +9 more
core   +2 more sources

Functional Integration of Different‐Sex Gonad Transplants Into the Adult Mouse Hypothalamic Pituitary Gonadal Axis

Advanced Biology, EarlyView.
This study introduces and investigates different‐sex gonad transplants in a mouse model of gender‐affirming hormone therapy. Ovaries and testes implanted into gonadectomized adults exhibit gametogenesis and steroidogenesis independent of the sex of the host.
Daniel R. Pfau, Monica A. Rionda, Evelyn Cho, Jamison G. Clark, Robin E. Kruger, Ruth K. Chan‐Sui, Vasantha Padmanabhan, Molly B. Moravek, Ariella Shikanov   +8 more
wiley   +1 more source

PIWIs Regulate Spermatogonia Self-Renewal and Differentiation by Wnt/β-Catenin Signaling Pathway in Eriocheir sinensis

Biology
The roles of PIWI in mammalian spermatogenesis have been well-studied but are largely unknown in invertebrates such as the Chinese mitten crab (Eriocheir sinensis), which produces non-flagellar sperm.
Bang-Hong Wei, Zhan Zhao, Hong-Yu Qi, Zhen-Fang Li, Wan-Xi Yang, Shuang-Li Hao   +5 more
doaj   +1 more source

Age-specific and sex-specific reference intervals for non-fasting lipids and apolipoproteins in 7260 healthy Chinese children and adolescents measured with an Olympus AU5400 analyser: a cross-sectional study

BMJ Open, 2019
Aims Ethnic, demographic, lifestyle, genetic and environmental factors influence lipids and apolipoproteins. The aim of this study was to establish age-specific and gender-specific reference intervals for non-fasting lipids and apolipoproteins in healthy
Junjie Liu, Yanpeng Dai, Enwu Yuan, Yushan Li, Quanxian Wang, Linkai Wang, Yanhua Su   +6 more
doaj   +1 more source

COVID-19 Severity and Androgen Receptor Polymorphism

Biology, 2022
During the COVID-19 pandemic, the most severe form of the disease was most often seen in male patients. The aim of this study was to identify any male predispositions that could be used to predict the outcome of the disease and enable early intervention.
Alessandra Buonacquisto, Anna Chiara Conflitti, Francesco Pallotti, Antonella Anzuini, Serena Bianchini, Luisa Caponecchia, Anna Carraro, Maria Rosa Ciardi, Fabiana Faja, Cristina Fiori, Daniele Gianfrilli, Andrea Lenzi, Miriam Lichtner, Claudio Maria Mastroianni, Patrizia Pasculli, Flavio Rizzo, Pietro Salacone, Annalisa Sebastianelli, Francesco Lombardo, Donatella Paoli   +19 more
doaj   +1 more source

Rheotaxis facilitates upstream navigation of mammalian sperm cells [PDF]

, 2014
A major puzzle in biology is how mammalian sperm determine and maintain the correct swimming direction during the various phases of the sexual reproduction process.
Adolphi, Bahat, Brenker, Chengala, Denissenko, Eisenbach, Elgeti, Eschenbach, Fauci, Fauci, Friedrich, Gaffney, Gibbons, Han, Ishijima, Kantsler, Katz, Kaupp, Kunz, Marcos, Marcos, Merviel, Miki, Montenegro-Johnson, Owen, Riffell, Roberts, Rothschild, Smith, Smith, Spehr, Su, Suarez, Talkner, Wilson, Winet, Woolley, Zimmer   +37 more
core   +3 more sources

Insight into the Internal Structure of Biogenic, Synthetic and Geological Apatite by Electron Microscopy and X‐Ray Scattering

Advanced Functional Materials, EarlyView.
Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka, Oleg Prymak, Kateryna Loza, Matthias Epple   +3 more
wiley   +1 more source

From biological marker to clinical application: the role of anti-Müllerian hormone for delayed puberty and idiopathic non-obstructive azoospermia in males

Endocrine Connections
Anti-Müllerian hormone (AMH), a biomarker secreted by Sertoli cells in the testes, has emerged as a critical indicator of male reproductive function with significant clinical application potential.
Yuanyuan Zeng, Guicheng Zhao, Yi Zheng, Xiaohui Jiang   +3 more
doaj   +1 more source