A mathematical formalism was developed comprising four performance parameters to analyse electronic feedback systems for voltage clamp measurements in myelinated nerve fibres. The effects of the so-called Schmidt-Lanterman incisures and of the nodal series resistance were of particular interest here. Starting from passive standard data from myelinated nerve fibres, we calculated the frequency d...

Low-angle X-ray diffraction patterns from a variety of myelinated nerves are described. Different kinds of patterns are obtained from peripheral nerve and central nervous system myelin. The intensity variation between the first five diffraction orders is the same for each variety of peripheral nerve myelin, and similarly, an intensity variation exists which is the same for each variety of centr...

The upper limbs of 10 healthy subjects were cooled and then warmed over physiological temperature ranges. The compound action potentials of median digital nerves, median sensory nerve at the wrist, radial sensory nerve at the wrist, and median thenar muscle, all showed progressive reduction in latency, amplitude, duration and area during rising temperature. Our studies suggest that the sensory ...

A pyrimidine scheme to restore mRNA expor t I nhibitors of pyrimidine synthesis can stop the in-fl uenza virus from trapping host cell mRNAs in the nucleus, < a d d a r t t y p e = " r e l " d o i = " 1 0. 1 0 8 3 / j c b. 2 0 1 1 0 7 0 5 8 " > Zhang et al.< / a d d a r t > report. Many viruses switch off the expression of host cell genes in order to survive and replicate. The infl uenza virus,...

Background: Peripheral nerves may be damaged during an injury and its current standard treatment is using an autologous nerve. Objectives: The purpose of this experimental study is to evaluate and compare the histological results of nerve regeneration after using the eggshell membrane (ESM) guidance channel with autograft. Materials and Methods: Thirty adult male rats were divided into th...

Compound action potential (CAP) of spinal cord represents valuable properties of neural fibers including excitability, rate of myelination and membrane integrity. These properties are measured using amplitude, latency and area under curve of CAPs recorded from spinal cord. Here, the isolated spinal cord was set in a double sucrose gap (DSG) chamber and its response to intracellular stimulation ...

Schwannomas are neurogenic tumors arising from the Schwann cells present in neural sheath of myelinated nerves. These benign that can arise anywhere body. rarely seen nose and paranasal sinuses representing &lt;4% all head-and-neck schwannomas. Surgical excision is treatment choice these cases. Nasal polyps common nasal cavity lesions which usually inflammatory polyps. Schwannoma presented with...

Introduction The neurological hallmark of TTR-FAP is a lengthdependent axonal neuropathy that initially involves the unmyelinated and small myelinated nerve fibers that mediate pain and temperature sensation, causing sensory disturbances that typically start in lower limbs. Subsequent degeneration of larger myelinated fibers results in large fiber sensory deficit and muscle weakness. The diseas...