Results 91 to 100 of about 11,144,846 (357)

Effect of Achillea santolina on mice spermatogenesis [PDF]

open access: yes, 2004
Achillea santolina, a common variety of Achillea in Golestan province of Iran has been used in traditional medicine for its anti - inflammatory properties.
Azadbakht, M.   +4 more
core   +1 more source

Establishment of pluripotent cell lines from vertebrate species - Present status and future prospects [PDF]

open access: yes, 1999
Pluripotent embryonic stem (ES) cells are undifferentiated cell lines derived from early embryos and are capable of unlimited undifferentiated proliferation in vitro.
Prelle, Katja   +4 more
core   +1 more source

A Human‐Based Skin‐Lymphoreticular Model‐on‐Chip to Emulate Inflammatory Skin Conditions

open access: yesAdvanced Healthcare Materials, EarlyView.
A human‐based lymphoreticular (LR) model was developed through guided self‐assembly and integrated in a skin‐lymphoreticular co‐culture in a microfluidic organ‐on‐chip to mimic interactions between skin and its draining lymph nodes. The human‐based skin‐lymphoreticular model resembles a minimally functional unit that allows to study interactions ...
Zheng Tan   +3 more
wiley   +1 more source

Germ Cells Are Forever [PDF]

open access: yesCell, 2008
Germ cells are the only cell type capable of generating an entirely new organism. In order to execute germline-specific functions and to retain the capacity for totipotency, germ cells repress somatic differentiation, interact with a specialized microenvironment, and use germline-specific networks of RNA regulation.
Cinalli, Ryan M.   +2 more
openaire   +2 more sources

Microphysiological Systems of Lymphatics and Immune Organs

open access: yesAdvanced Healthcare Materials, EarlyView.
This review surveys recent progress in engineering lymphatic microenvironments and immune organoids within microphysiological systems, emphasizing innovative strategies to recreate the biochemical and biophysical complexity of native lymphatic tissues.
Ishita Jain   +2 more
wiley   +1 more source

Plasma and testicular testosterone levels, volume density and number of Leydig cells and spermatogenic efficiency of rabbits [PDF]

open access: yes, 2002
Plasma and tissue testosterone concentrations were determined by radioimmunoassay in 12 eight-month-old sexually mature New Zealand White rabbits and evaluated for possible associations with spermatogenic efficiency as well as with volume density and ...
Berndtson, William E.   +2 more
core   +2 more sources

Synthetic Cell‐Based Tissues for Bottom‐Up Assembly of Artificial Lymphatic Organs

open access: yesAdvanced Healthcare Materials, EarlyView.
Synthetic cells have emerged as a novel biomimetic approach for fundamental research and therapeutic interventions. T cell activating synthetic cells are able to form 3D tissue‐like structures by self‐assembly into lymphatic bottom‐up tissues (lymphBUT) with tunable biochemical and biomechanical functionalities as well as metabolic activity are ...
Anna Burgstaller   +5 more
wiley   +1 more source

A nucleic acid binding protein map of germline regulation in Caenorhabditis elegans

open access: yesNature Communications
Fertility requires the faithful proliferation of germ cells and their differentiation into gametes. Controlling these cellular states demands precise timing and expression of gene networks. Nucleic acid binding proteins (NBPs) play critical roles in gene
Wei Cao   +6 more
doaj   +1 more source

The topological structure of 2D disordered cellular systems

open access: yes, 1997
We analyze the structure of two dimensional disordered cellular systems generated by extensive computer simulations. These cellular structures are studied as topological trees rooted on a central cell or as closed shells arranged concentrically around a ...
Aste, T.   +3 more
core   +3 more sources

Prospects for transgenesis in the chick [PDF]

open access: yes, 2004
Research to develop a useful method for genetic modification of the chick has been on-going since the first demonstrations in the mouse in the 1980s that genetic modification is an invaluable tool for the study of gene function. Manipulation of the chick
Bosselman   +52 more
core   +1 more source

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