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Over time, cancer cells can evolve to become resistant to treatment, more aggressive, and metastatic — capable of spreading to additional sites in the body and forming new tumors. The more of these tr...
Scientists find new genetic roots of schizophrenia
Scientists new genetic roots schizophrenia
2016/11/4
UCLA scientists have made a major advance in understanding the biology of schizophrenia.Using a recently developed technology for analyzing DNA, the scientists found dozens of genes and two major biol...
Two new Valepotriates from the roots of Valeriana Sisymbriifolia
Valeriana sisymbriifolia Valepotriate 1-α-Aceisovaltrate Iranian valerian
2010/1/6
A dicholoromethane extract of the roots of Valeriana sisymbriifolia Vahl. afforded a new valepotriate. I-α-aceisovaltrate and a new valepotriatehydrine, acetoxydesiovaleroxy-1-α-acetoxy-isovaleroxy is...
Stress Distribution in Roots Restored with Different Types of Post Systems with Composite Resin
Nonlinear finite element analysis Young's modulus Von Mises stress
2009/9/11
Although composite resin core is used with various types of prefabricated posts, it remains unclear which kind of material is most suitable for the post. The aim of this study was to evaluate the infl...
Investigation of Stress Distribution in Roots Restored with Different Crown Materials and Luting Agents
Nonlinear finite element analysis Young′s modulus Von Mises stress
2009/9/11
The purpose of this study was to identify crown materials and luting agents that would decrease the stress concentrated at the roots of endodontically treated teeth. To this end, natural tooth model (...
Stability of Mini-Screws Invading the Dental Roots and Their Impact on the Paradental Tissues in Beagles
Mini-screw Root damage Root healing
2010/3/5
Objective: To examine the stability of mini-screws that invade a dental root by measuring the retention period/failure rate, and to illustrate their effects on paradental tissues.
Materials and Met...
Pressure-induced tremor-associated activity in ventral roots in isolated spinal cord of newborn rats
hyperbaric spinal cord animal rat High Pressure Neurologic Syndrome
2009/3/25
Hyperbaric pressure induces hyperexcitability, tremor, and convulsions in intact animals by mechanisms that are not understood. High pressure induces spontaneous electrical discharges in the spinal ve...
A Radiographic Study of Roots in Extraction Sites.
Bladder volume-dependent excitatory and inhibitory influence of lumbosacral dorsal and ventral roots on bladder activity in rats
Bladder volume-dependent excitatory inhibitory lumbosacral dorsal ventral roots bladder activity
2009/3/2
This study was undertaken to examine the role of the afferent and efferent pathways of the lumbosacral spinal nerve roots in the tonic control of bladder activity. Changes of isovolumetric bladder a...
Relationships between Dental Roots and Surrounding Tissues for Orthodontic Miniscrew Installation
Dental root Interroot distance Miniscrew Complication
2010/3/5
Objective: To elucidate relationships between the dental roots and surrounding tissues in order to prevent complications after placement of a miniscrew.
Materials and Methods: Twenty human mandible...
Does the Canine Dental Follicle Cause Resorption of Permanent Incisor Roots? A Computed Tomographic Study of Erupting Maxillary Canines
Dental follicle Eruption Tooth root resorption Computed tomography (CT) Maxillary canine
2008/12/25
We performed computed tomography (CT) on 107 children and adolescents aged 9–15 years with 176 unerupted maxillary canines (152 erupting ectopically and 24 erupting normally) to determine whether th...
Maxillary Central Incisor with Two Roots: A Case Report
Two rooted maxillary central incisor Anatomic variations
2010/2/4
A 16 year old female was referred to an oral and maxillofacial radiologist for evaluation of a radiolucent area at mesial radicular aspect of right maxillary central incisor which was detected acciden...