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For instance, chemotherapy usually leads to depression of bone marrow and hair loss.
      
There are four levels of cells in the liver stem cell lineage: hepatocytes, hepatic stem cells/oval cells, bone marrow stem cells and hepato-pancreas stem cells.
      
Spherical-or cylindrical-shaped nanosized calcium phosphate particles are considered as an integral part of biological hard tissues such as bone and tooth enamel.
      
The effects were increased with decreasing particle sizes, and the 20-nm sized calcium phosphate, the basic building blocks during bone/enamel formations, was the most effective inhibitor.
      
Formation of bone-like apatite on poly(L-lactide) to improve osteoblast-like compatibility in vitro and in vivo
      
After a four-week culture in vivo, no significant inflammatory signs were observed in the implanted regions and osteoblast-like congeries with bone-like structure began to form in the scaffolds.
      
The positive results of this study suggest a good way to produce desirable PLLA biomaterials for bone tissue engineering.
      
Study on the mechanical and biological property of PMMA bone cement modified with ultra-fine glass fibers and nano-hydroxyapatit
      
In this study, polymethylmethacrylate (PMMA) bone cement (BC) was modified with ultra-fine glass fibers (UFGF) and nano-hydroxapatite (nano-HAP) synthesized by hydrothermal method.
      
The animal implantation test showed that the AZ31B alloy could slowly biodegrade in femur of the rabbit and form calcium phosphate around the alloy sample, with the Ca/P ratio close to the natural bone.
      
In vivo study of degradable magnesium and magnesium alloy as bone implant
      
Undecalcified cross-sections of implant were performed to observe bone-implant by scanning electron microscopy (SEM) and energy dispersive spectromicroscopy (EDS).
      
The SEM/EDS evaluation showed that there is a thin layer of bone around magnesium and its alloy after nine-week implantation.
      
At the locations where magnesium was resorbed, the deposition of new bone was found.
      
The results indicate that magnesium is biocompatible, osteo-conductive and is a potential material for use as a degradable bone implant.
      
This study indicates that the nano-HA/CH composite has a good ability for apatite formation in SBF, which predicts the bone-inducing ability of natural nano-HA/CH composite in vivo.
      
Hydrolysis of a protein mixture from muscle and bone tissues with the enzymatic system from porcine pancreatic cell suspension was studied.
      
Elevated Micronucleus Frequency in Bone Marrow Erythrocytes in the Progeny of Male Mice Exposed to Chronic Low-Dose Gamma Irradi
      
The micronucleus frequency in bone marrow erythrocytes from the F1 progeny of male mice exposed to chronic low-dose γ-irradiation was determined.
      
The obtained offspring had an elevated micronucleus frequency in bone marrow erythrocytes at the age of 2 months.
      
 

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