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11.
Braffman BH; Coleman BG; Ramchandani P; Arger PH; Nodine CF; Dinsmore BJ; Louie A; Betsch SE 《Radiology》1994,190(3):797
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Kathryn K Bucci Carl J Possidente Kathleen A Talbot 《American journal of health-system pharmacy》2003,60(24):2601-2605
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Two additional cases of Peutz-Jeghers syndrome are described. One of them, a 19 year-old female, is a sporadic case, whereas in the other case, also a 19 year-old female, there are two members of the family with the Peutz-Jeghers syndrome. A review of some salient features of this entity is made. These include clinical presentation, histopathological features, malignant potential and treatment. 相似文献
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We report on a patient with pathologically proven variant Creutzfeld-Jakob disease in whom chorea was a presenting feature of the disease, and was unaccompanied by the typical prodrome of psychiatric disturbance or sensory symptoms. 相似文献
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C. Jones T. Allen J. Talbot D. L. Morgan U. Proske 《European journal of applied physiology》1997,76(1):21-31
Following a series of eccentric contractions, that is stretching of the muscle while generating active tension, the length-tension relationship of isolated amphibian muscle has been shown to shift towards longer muscle lengths (Katz 1939; Wood et al. 1993). Here we report observations of electrically stimulated ankle extensor muscles of nine human subjects, demonstrating a similar shift in optimum angle for torque generation [3.9 (1.5)°] following exercise on an inclined treadmill that involved eccentric contractions in one leg. (All values are means with the SEMs in parentheses.) The shift in the unexercised, control leg was significantly less [mean 0.4 (0.7)°P?0.05]. Correlated with this shift was a drop in torque [25.1 (5.6)% for the experimental leg; 1.6 (0.7)% for the control leg, P?0.002]. Optimum angles returned to pre-exercise values by 2 days post-exercise, while torque took a week to recover. A similar shift in optimum length [12 (1.3)% of rest length] was obtained for five toad (Bufo marinus) sartorius muscles subjected to 25 eccentric contractions. Isometrically contracted control muscles showed a smaller shift [3.5 (1.6)%, n?=?5]. Accompanying the shift was a drop in tension of 46 (3)% after the eccentric contractions [control isometric, 23 (6)%, P?0.0001]. By 5 h after the eccentric contractions the shift had returned to control values, while tension had not recovered. When viewed with an electron microscope, sartorius muscles fixed immediately after the eccentric contractions exhibited many small, and a few larger, regions of myofilament disruption. In muscles fixed 5 h after the contractions, no small regions of disruption were visible, and the number of large regions was no greater than in those muscles fixed immediately after the eccentric contractions. These disruptions are interpreted as the cause of the shift in length-tension relationship. 相似文献
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The impetus for the devolopment of living related liver programmes lies with donor shortage, which relates inversely to the success of generating cadaveric donors. A shrinking or non-existent cadaveric donor pool leads to an increased death rate among potential recipients awaiting transplantation. The living related liver programmes have by and large been successful, though it is accepted that there is potentially a significant risk to the donors. The technique of live donor liver transplantation is clearly here to stay, but the selection of suitable donors is between the family and the unit. Consequently, because of the lack of international guidelines, the programmes are open to abuse. Steps should be taken to establish either mechanisms of control or a worldwide register to combat this potential. 相似文献