Results 31 to 40 of about 507,873 (296)

The paternal genome and the health of the assisted reproductive technology child

open access: yesAsian Journal of Andrology, 2015
As a number of children born by assisted reproductive technology (ART) are increasing each year across the developed world, the health of such offspring is a matter of public concern.
Sheena EM Lewis, Kishlay Kumar
doaj   +1 more source

Beyond T-Cells: Functional Characterization of CTLA-4 Expression in Immune and Non-Immune Cell Types

open access: yesFrontiers in Immunology, 2020
The immune response consists of a finely-tuned program, the activation of which must be coupled with inhibitory mechanisms whenever initiated. This ensures tight control of beneficial anti-pathogen and anti-tumor responses while preserving tissue ...
Damilola Oyewole-Said   +9 more
doaj   +1 more source

Impact of Sleep and Circadian Disruption on Energy Balance and Diabetes: A Summary of Workshop Discussions [PDF]

open access: yes, 2015
A workshop was held at the National Institute for Diabetes and Digestive and Kidney Diseases with a focus on the impact of sleep and circadian disruption on energy balance and diabetes.
Arble, Deanna M   +28 more
core   +4 more sources

Behavioral mechanisms of mammalian sperm guidance

open access: yesAsian Journal of Andrology, 2015
In mammals, sperm guidance in the oviduct appears essential for successful sperm arrival at the oocyte. Hitherto, three different potential sperm guidance mechanisms have been recognized: thermotaxis, rheotaxis, and chemotaxis, each of them using ...
Serafín Pérez Cerezales   +2 more
doaj   +1 more source

T-Cell Tolerance: Central and Peripheral [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2012
Somatic recombination of TCR genes in immature thymocytes results in some cells with useful TCR specificities, but also many with useless or potentially self-reactive specificities. Thus thymic selection mechanisms operate to shape the T-cell repertoire. Thymocytes that have a TCR with low affinity for self-peptide-MHC complexes are positively selected
Yan, Xing, Kristin A, Hogquist
openaire   +2 more sources

Immunotherapy in hepatocellular carcinoma: the complex interface between inflammation, fibrosis, and the immune response. [PDF]

open access: yes, 2019
Hepatocellular carcinoma (HCC) is the third leading cause of cancer deaths worldwide and confers a poor prognosis. Beyond standard systemic therapy with multikinase inhibitors, recent studies demonstrate the potential for robust and durable responses ...
Fong, Lawrence   +2 more
core   +2 more sources

A comparative evaluation of semen parameters in pre- and post-Hurricane Katrina human population

open access: yesAsian Journal of Andrology, 2015
A natural disaster leading to accumulation of environmental contaminants may have substantial effects on the male reproductive system. Our aim was to compare and assess semen parameters in a normospermic population residing in the Southern Louisiana, USA
Caner Baran   +2 more
doaj   +1 more source

Histone H2A-Reactive B Cells Are Functionally Anergic in Healthy Mice With Potential to Provide Humoral Protection Against HIV-1

open access: yesFrontiers in Immunology, 2020
Peripheral tolerance is essential for silencing weakly autoreactive B cells that have escaped central tolerance, but it is unclear why these potentially pathogenic B cells are retained rather than being eliminated entirely.
Amanda Agazio   +6 more
doaj   +1 more source

Regulatory T cell proliferative potential as novel marker to investigate immune tolerance and clinical progression in Multiple Sclerosis [PDF]

open access: yes, 2011
In autoimmune disorders such as Multiple Sclerosis (MS) one of the determining alteration is the breakdown of self-antigen immune-tolerance. Peripheral immune tolerance is maintained, at least in part, by Regulatory T cells (Treg).
Carbone, Fortunata
core   +1 more source

Varicocele and testicular function

open access: yesAsian Journal of Andrology, 2015
Testicular varicocele, a dilation of the veins of the pampiniform plexus thought to increase testicular temperature via venous congestion, is commonly associated with male infertility.
Alexander W Pastuszak, Run Wang
doaj   +1 more source

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