Results 71 to 80 of about 103,424 (339)

Magnetic Field Driven Microrobot Based on Hydrogels

open access: yesAdvanced Robotics Research, EarlyView.
Hydrogel‐based magnetic microrobots synergize remote magnetic control with the biocompatibility of flexible hydrogels, emerging as promising tools for minimally invasive biomedicine. This enables remotely controllable, untethered navigation within complex biological microenvironments.
Juncai Song, Yubing Guo
wiley   +1 more source

Male sperm storage compromises sperm motility in guppies [PDF]

open access: yesBiology Letters, 2014
Sperm senescence can have important evolutionary implications due to its deleterious effects on sperm quality and offspring performance. Consequently, it has been argued that polyandry (female multiple mating) may facilitate the selection of younger, and therefore competitively superior, sperm when ejaculates from multiple males compete ...
GASPARINI, CLELIA   +2 more
openaire   +3 more sources

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

open access: yes, 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   +3 more
core  

Understanding miR‐200c: an Important Player in Resistance to Cancer Treatment

open access: yesAdvanced Therapeutics, EarlyView.
How can one microRNA alter cancer's response to therapy? miR‐200c plays a central role in therapeutic resistance by modulating epithelial‐mesenchymal transition, apoptosis, cancer stemness features, and drug efflux. This review outlines the context‐dependent functions of miR‐200c in various cancers and highlights its potential as both a biomarker and a
Fatma Sanli, Omer Faruk Karatas
wiley   +1 more source

Protective Effect of L-Carnitine on the Sperm Parameters of Adult Mice Treated with Ciprofloxacin

open access: yesJournal of Ardabil University of Medical Sciences, 2018
Background & objectives: The present study examined the gonadotoxic effects of ciprofloxacin antibiotics and protective effects of L-carnitine. Methods: In this study, 20 NMRI mice were divided into four groups: control, ciprofloxacin, L-carnitine, L ...
Mina Kiani, Paria Parto
doaj  

Post‐Translational Modifications in Cilia and Ciliopathies

open access: yesAdvanced Science, EarlyView.
This review synthesizes current understanding of post‐translational modifications (PTMs) in ciliary proteins and emphasizes their roles in ciliary formation, homeostasis, and signaling. This review also discusses the implication of PTM dysregulation in ciliopathies and explores therapeutic strategies targeting PTM‐modifying enzymes.
Jie Ran, Jun Zhou
wiley   +1 more source

Physical and morphological characteristics of Kankrej bull semen

open access: yesVeterinary World, 2013
Aim: Present investigation was carried out to study the physical characteristics of Kankrej bulls semen by evaluation of various semen parameters from neat semen and at various stages of semen preservation. Materials and Methods: A total of 60 ejaculates,
Bharatkumar R. Patel, G. M. Siddiquee
doaj   +1 more source

Contribution of Bacterial Infection to Male Infertility in Nigerians [PDF]

open access: yes, 2009
There is disagreement as to the influence of certain microbial infection on male infertility and such agents are ignored. The incidence of these microbial agents in seminal fluid isolates is on the increase.
Emokpae, MA, Sadiq, NM, Uadia, PO
core   +1 more source

Does prohibitin expression regulate sperm mitochondrial membrane potential, sperm motility, and male fertility? [PDF]

open access: yes, 2012
Prohibitin (PHB) is a highly conserved major sperm mitochondrial membrane protein whose absence in somatic cells is associated with mitochondrial membrane depolarization and increased generation of reactive oxygen species (ROS).
Chen, GW   +7 more
core   +1 more source

QSOX2‐Mediated Disulfide Bond Modification Enhances Tumor Stemness and Chemoresistance by Activating TSC2/mTOR/c‐Myc Feedback Loop in Esophageal Squamous Cell Carcinoma

open access: yesAdvanced Science, EarlyView.
High QSOX2 enhances stemness, drug resistance, and metastasis of ESCC cells. QSOX2‐mediated disulfide bond modification activates mTOR/c‐Myc signaling. CAFs‐secreted IGF‐1 drives mTOR/c‐Myc/QSOX2 positive feedback loop. Combining Ebselen, rapamycin, and cisplatin induces tumor dormancy in mice.
Wo‐Ming Chen   +12 more
wiley   +1 more source

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