Results 101 to 110 of about 408,258 (430)

Material Composition Gradient Controls the Autonomous Opening of Banksia Seed Pods in Fire‐Prone Habitats

Advanced Functional Materials, EarlyView.
The seed pod valves of Australian Banksia attenuata plants are not simply bi‐layers which bend when dry. These experiments and models reveal complex mechanics, which allow seed release only after several steps of seed pod opening. Stiffness gradients prevent delamination of the valves during loading, and a shape‐memory function protects the seeds ...
Friedrich Reppe, Lorenzo Guiducci, Rivka Elbaum, Peter Werner, John W. C. Dunlop, David J. Merritt, Peter Fratzl, Michaela Eder   +7 more
wiley   +1 more source

Stimulation of ZPC Production by Follicle-Stimulating Hormone in the Granulosa Cells of Japanese Quail (Coturnix Japonica)

The Journal of Poultry Science, 2003
Avian perivitelline membrane, an investment homologous to the zona pellucida of mammalian oocytes, is composed of two glycoproteins. Previous studies have indicated that one of the components, a glycoprotein homologous to mammalian ZPC, is produced and ...
Jianzhi Pan, Tomohiro Sasanami, Makoto Mori   +2 more
doaj   +1 more source

Individual 17-Hydroxyprogesterone Responses to hCG Are Not Correlated With Follicle Size in Polycystic Ovary Syndrome. [PDF]

, 2019
Context:In women with polycystic ovary syndrome (PCOS), 17-hydroxyprogesterone (17-OHP) responses to gonadotropin stimulation vary from increased to indistinguishable compared with normal controls.
Chang, R Jeffrey, Duleba, Antoni J, Garzo, Gabriel, Homer, Michael V, Lawson, Mark A, Toloubeydokhti, Tannaz   +5 more
core   +1 more source

Ovarian function during hormonal contraception assessed by endocrine and sonographic markers: a systematic review [PDF]

, 2016
This systematic review focuses on the literature evidence for residual ovarian function during treatment with hormonal contraceptives. We reviewed all papers which assessed residual ovarian activity during hormonal contraceptive use, using endocrine ...
Bastianelli, Carlo, Candelieri, Miriam, D'Arpe, Stella, DI FELICIANTONIO, Mara, Franceschetti, Silvia, Piccioni, Maria Grazia   +5 more
core   +1 more source

Stable, Easy‐to‐Handle, Fully Autologous Electrospun Polymer‐Peptide Skin Equivalent for Severe Burn Injuries

Advanced Functional Materials, EarlyView.
A bioengineered skin equivalent composed of electrospun poly(ε‐caprolactone) (PCL) and the bioactive peptide Fmoc‐FRGD is developed for severe burn treatment. This scaffold promotes full‐thickness skin regeneration by supporting cellular adhesion and integration. In‐vitro and in‐vivo studies show enhanced mechanical stability, accelerated wound closure,
Dana Cohen‐Gerassi, Marina BenShoshan, Adi Liiani, Tomer Reuveni, Offir Loboda, Moti Harats, Josef Haik, Itzhak Binderman, Yosi Shacham‐Diamand, Amit Sitt, Ayelet Di Segni, Lihi Adler‐Abramovich   +11 more
wiley   +1 more source

Mechanisms of organogenesis of primary lymphoid follicles [PDF]

arXiv, 2006
Primary lymphoid follicles in secondary lymphoid tissue of mammals are the backbone for the formation of follicular dendritic cell networks. These are important for germinal center reactions. In the context of organogenesis molecular requirements for the formation of follicles have been identified.
arxiv  

Perturbations in Lineage Specification of Granulosa and Theca Cells May Alter Corpus Luteum Formation and Function [PDF]

, 2019
Anovulation is a major cause of infertility, and it is the major leading reproductive disorder in mammalian females. Without ovulation, an oocyte is not released from the ovarian follicle to be fertilized and a corpus luteum is not formed.
Abedel-Majed, Mohamed A., Cupp, Andrea S., Davis, John S., Romereim, Sarah M.   +3 more
core   +1 more source

High-Definition Optical Coherence Tomography for the in vivo Detection of Demodex Mites [PDF]

, 2012
Background: Demodex mites are involved in different skin diseases and are commonly detected by skin scrape tests or superficial biopsies. A new high-definition optical coherence tomography (HD-OCT) with high lateral and axial resolution in a horizontal ...
Askin U, Burns DA, C. Berking, Desch C, E. Sattler, Hinz T, Kligman AM, Longo C, Longo C, M. Braun-Falco, Pellacani G, Sattler EC, Slutsky JB, T. Maier, T. Ruzicka, Welzel J   +15 more
core   +1 more source

Microbubble‐Controlled Delivery of Biofilm‐Targeting Nanoparticles to Treat MRSA Infection

Advanced Functional Materials, EarlyView.
Here, an effective strategy using microbubble (MB)‐controlled delivery of biofilm‐targeting nanoparticles (BTNs) for removal and therapy of methicillin‐resistant Staphylococcus aureus (MRSA) biofilm infections is introduced. In vivo delivery of MB with BTN is demonstrated to silence key bacterial genes involved in biofilm formation (icaA), bacterial ...
Ju Yeon Chung, Yujin Ahn, Joo Hun Lee, Seungju Yang, Seung Cheol Lee, Hyunjoon Kong, Hyun Jung Chung   +6 more
wiley   +1 more source

Multiscale population dynamics in reproductive biology: singular perturbation reduction in deterministic and stochastic models [PDF]

arXiv, 2019
In this study, we describe different modeling approaches for ovarian follicle population dynamics, based on either ordinary (ODE), partial (PDE) or stochastic (SDE) differential equations, and accounting for interactions between follicles. We put a special focus on representing the population-level feedback exerted by growing ovarian follicles onto the
arxiv