No abstract

A four-channel impedance measurement system, including a two-channel goniometer, to analyse human arm movement, was constructed. Impedances and joint angles were simultaneously measured for wrist and elbow movements. As the impedance changes resulting from wrist and elbow movements depended heavily on electrode placement, the optimum electrode configurations for those movements were determined by searching for high correlation coefficients, large impedance changes and minimum interferences in ten subjects (age: 29 +/- 6 years). The optimum electrode configurations showed very strong relationships between the wrist joint angle and forearm impedance (correlation coefficient= 0.95 +/- 0.04) and between the elbow joint angle and upper arm impedance (correlation coefficient= -0.97 +/- 0.03). Although the measured impedance changes of the wrist (1.1 +/-1.5 ohms) and elbow (-5.0 +/-2.9 ohms) varied between individuals, the reproducibilities of wrist and elbow impedance changes of five subjects were 5.8 +/- 1.8% and 4.6 +/- 1.4% for the optimum electrode pairs, respectively. It is proposed that this optimum electrode configuration would be useful for future studies involving the accurate measurement of arm movements by the impedance method.

Summary:mechanisms mediated by cytokines released from donorderived T cells. 1,2 Therefore, more detailed identification of T cell subsets can be an exceptionally good way to eluciAcute graft-versus-host disease (aGVHD) remains a major barrier to a wider application of allogeneic bone date the immune mechanism responsible for aGVHD. Recently accumulating evidence indicates that the Fas marrow transplantation (BMT). Although this complication is mainly dependent on donor-derived T lympho-(APO-1; CD95)/Fas-ligand (FasL) system represents an important cellular pathway responsible for T cell-mediated cytes, very little information is available concerning the mechanism of lethality. In this study, we investigated cytotoxicity and the induction of apoptosis in various tissues. [3][4][5] Fas antigen, which is a 45-kDa cell-surface type both the expression of Fas/Fas-ligand (FasL) and lymphocyte subset reconstitution in patients who underwent I membrane protein member of the tumor necrosis factor (TNF)/nerve growth factor receptor family, is expressed not HLA-matched related allogeneic BMT (n ‫؍‬ 16) and normal donors (n ‫؍‬ 10), and several distinct features only on activated T cells, but also on other tissues such as liver, heart, lung, skin and gastrointestinal tract. ؉ cells (P Ͻ 0.01), and also, significantly higher coexpression of FasL on However, Fas and FasL expression in aGVHD has not been further evaluated, and its clinical significance remains to be CD8 ؉ cells was found in patients with aGVHD (P Ͻ 0.01). In summary, an increase in the percentage elucidated in humans. Therefore, we evaluated both the lymphocyte subset of CD8 ؉ cells which express Fas and its ligand in patients with aGVHD after BMT points to a possible reconstitution and the expression of Fas and FasL on each lymphocyte subset in order to explore the pathogenesis of role for the Fas/FasL pathway in the effector phase of aGVHD.aGVHD based on Fas/FasL pathway.

Generalized atrophic benign epidermolysis bullosa (GABEB) is an autosomal recessive form of junctional epidermolysis bullosa, with milder clinical features than the Herlitz subtype. A 25-year-old man presented with the clinical and histological findings of GABEB. At the initial visit, laboratory tests revealed that he also had chronic renal failure (CRF). Usually, GABEB has a good prognosis. However, in this case, the patient had CRF as an associated complication. He died of an intracranial haemorrhage combined with sepsis after 3 weeks of hospitalization. This case suggests that renal complications can occur in this relatively mild form of epidermolysis bullosa, and may contribute to morbidity and premature mortality.

Electronic root canal length measurement devices have made it easier and faster to measure the root canal length of a tooth compared with the conventional radiographic method. Of these electronic apex locators, the frequency-dependent type features greater accuracy and convenience in operation. However, its accuracy is still influenced by the presence of blood and/or the various electrolytes used in root canal therapy. This study describes the development of a new frequency-dependent electronic apex locator featuring electrolyte compensation, utilising an impedance ratio and voltage difference technique to minimise the influence of electrolytes on the accuracy of root canal length measurement. The errors for distances from file tips to apical constrictions were determined in vivo with the device operating with electrolyte compensation. The measured lengths were compared with the true lengths of the extracted teeth determined using a microscope. The mean error was +0.14+/-0.27mm, and 95.2% of the measurements were within the clinical tolerance of +/-0.5mm. It was also found that the degree of accuracy was not dependent on the size of the apical foramen (p = 0.74).

This study suggests BP patients who are older and have no admission history tend to achieve remission.