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41.
Kazunori Yokohata Hiroshi Kimura Gen Naritomi Hiroyuki Konomi Torahiko Takeda Yoshiaki Ogawa Masao Tanaka 《Journal of Hepato-Biliary-Pancreatic Surgery》1994,1(3):236-239
The role of endoscopic retrograde cholangiopancreatography (ERCP) in the preoperative assessment of anomalous pancreaticobiliary
junction was retrospectively evaluated in 74 consecutive patients (19 males and 55 females; aged 0–80 years). Sixty-three
patients had congenital biliary dilatation and 11 did not. Type classification of congenital biliary dilatation was possible
by ERCP alone in 45 patients (71%). The main causes of classification failure were previous bilio-enteric anastomosis and
restriction of postural changes during ERCP due to general anesthesia in pediatric patients. Classification of anomalous junction
was possible in 69 patients (93%). Technical difficulty in ERCP caused classification failure in 5 patients. Neoplastic lesions
were found in 12 patients (16%) and all but 1 were correctly diagnosed by ERCP. We conclude that ERCP plays an important role
in the preoperative diagnosis and type classification of anomalous pancreaticobiliary junction and congenital biliary dilatation. 相似文献
42.
P. Arora V. Kher P. K. Rai M. K. Singhal S. Gulati A. Gupta 《Pediatric nephrology (Berlin, Germany)》1997,11(2):153-155
Various factors were analyzed in 80 consecutive children under 16 years who had acute renal failure (ARF), for various prognostic
factors. Overall mortality was 42.5%, with significantly higher levels seen in hemolytic uremic syndrome (68%, P <0.05) and associated with cardiac surgery (90.9%, P <0.01). Anuria (67.6% vs. 43.5%, P <0.05), need for dialysis (85.3% vs. 56.5%, P <0.05), neurological complications (50% vs. 6.3%, P <0.01), and respiratory complications (35.2% vs. 2.1%, P <0.01) were significantly higher in nonsurvivors than survivors. Multiple regression analysis showed the presence of neurological
and respiratory complications to be poor prognostic factors.
Received May 2, 1995; received in revised form August 28, 1996; accepted September 13, 1996 相似文献
43.
Yasuaki Antoku Eisuke Hanada Kouhei Akazawa Yuko Kenjo Yoshiaki Nose 《Journal of medical systems》1997,21(4):211-218
SOHO (Small Office/Home Office) has recently become popular, as it makes working at home possible. Computers or Local Area Networks(LAN) connected to the office network from home are necessary for the implementation of this concept. Kyushu University has begun a service connecting home computers to the campus LAN for researchers, staff and students of the Faculty of Medicine. We have two different telephone connection methods. One connects the campus LAN and the home computer LAN using routers through the Integrated Services Digital Network (ISDN). The other connects computers at home to the workstation in the university, using modems and the PPP (Point to Point Protocol) through a public telephone analog line. This paper outlines our university SOHO connection system and discusses the merits and demerits of using telephone line connections. 相似文献
44.
K. S. Kohli D. V. Rai P. Kumar V. K. Jindal Dr. N. Goyal 《Medical & biological engineering & computing》1997,35(4):348-353
The complex electrical impedance of a goat eye lens is studied in the frequency range 10mHz−10Hz at room temperature, using
a computer-controlled AC impedance system. AC impedance software (model 368, version 2.2) is employed to determine the total
impedance and capacitance of the eye lens at various frequencies. A Cole-Cole plot of the eye lens material is drawn between
the real component of impedance Z′ and the imaginary component Z″ for each excitation frequency that shows a perfect arc of
a semicircle, with its centre lying below the abscissa at an angle of 35°. The half-angle ϕ between R0 and R∞ is found to be 55°, which mathematically demonstrates the selective permeability of the eye lens. Using graphical analysis
of the Cole-Cole plot, characteristic frequency fc and distribution factor α are observed to be 1Hz and 0.77, respectively. At characteristic frequency, capacitance and total
impedance are found to be 1.14μF and 9.08kΩ. The effect of electrode polarisation on capacitance is corrected, based on Fricke's
power function. The observed electrical parameters are then used to explain the multiple current path through various tissue
compartments. Further, an attempt is made to explain the results on the basis of a possible dipolar model. 相似文献
45.
46.
The sympathetic nervous system is believed to play a major role in regulating cardiovascular function during exercise. However, only a few direct measurements of sympathetic nervous activity during whole body dynamic exercise have been attempted. In the present study, we have established a method to allow routine measurement of renal sympathetic nerve activity (RSNA) and cardiovascular function during treadmill exercise in rats. We trained Wistar rats to run on the treadmill for a week before the surgery. At least 2 days before the experiment, electrodes for recording RSNA, electrocardiogram and electromyogram, and catheters for the measurements of systemic arterial and central venous pressures were implanted under aseptic conditions. Satisfactory signal to noise ratios were obtained in 80 %, 60 % and 40 % of the group at 1-3 days, 4-7 days and 8-10 days after the surgery, respectively. RSNA was successfully recorded without contamination by external noise during treadmill exercise. Treadmill exercise resulted in an abrupt increase in RSNA, by 82 % at 0.5 min, and then reached a stable level of ~40 % during the period of 5-30 min after the onset of treadmill exercise. This experimental model allows us to study the neural mechanisms involved in the regulation of cardiovascular function during dynamic exercise in rats. 相似文献
47.
Kazuki Sato Toshiyasu Nakamura Yoshiaki Toyama Hiroyasu Ikegami Kaori Kameyama Shinichiro Takayama 《Hand surgery》2007,12(3):149-154
Calcium deposition in the skin, known as calcinosis cutis, is an uncommon disorder caused by an abnormal deposit of calcium phosphate in the skin. We report a case of idiopathic calcinosis cutis in fingertip treated with surgical excision followed by the occlusive dressing using aluminum foil, and obtained significant pain relief and round-shaped fingertip which looked normal. 相似文献
48.
Takeuchi Hirofumi Yamamoto Hiromitsu Niwa Toshiyuki Hino Tomoaki Kawashima Yoshiaki 《Pharmaceutical research》1996,13(6):896-901
Purpose. The mucoadhesiveness of polymer-coated liposomes was evaluated to develop a novel drug carrier system for oral administration of poorly absorbed drugs such as peptide drugs.
Methods. Multilamellar liposomes consisting of dipalmitoylphosphatidylcholine (DPPC) and dicetyl phosphate (DCP) (DPPC:DCP = 8:2 in molar ratio) were coated with chitosan (CS), polyvinyl alcohol having a long alkyl chain (PVA-R) and poly (acrylic acid) bearing a cholesteryl group. The adhesiveness of the resultant polymer-coated liposomes to the rat intestine was measured in vitro by a particle counting method with a Coulter counter. The CS-coated liposomes containing insulin were administered to normal rats and the blood glucose level was monitored.
Results. The existence of polymer layers on the surface of liposomes was confirmed by measuring the zeta potential of liposomes. The CS-coated liposomes showed the highest mucoadhesiveness and the degree of adhesion was dependent on the amount of CS on the surface of the liposomes. The blood glucose level of rats was found to be significantly decreased after administration of the CS-coated liposomes containing insulin. The lowered glucose level was maintained for more than 12h after administration of the liposomal insulin, which suggested mucoadhesion of the CS-coated liposomes in the intestinal tract of the rats. 相似文献
49.
50.
Tomimori Y Muto T Fukami H Saito K Horikawa C Tsuruoka N Saito M Sugiura N Yamashiro K Sumida M Kakutani S Fukuda Y 《Laboratory investigation; a journal of technical methods and pathology》2002,82(6):789-794
An epicutaneous application of 2,4-dinitrofluorobenzene (DNFB) to a mouse ear caused a transient skin swelling, and the repetition of the challenge enlarged the contact dermatitis. The repeated challenge with DNFB also induced eosinophil infiltration on the application site. Administration of a chymase inhibitor significantly inhibited the ear swelling as well as eosinophil accumulation. An intradermal injection of human chymase to the mouse ear also elicited transient skin swelling and eosinophil infiltration, both of which were augmented in proportion to the number of injections. Human serum albumin and heat-inactivated chymase failed to induce such skin reactions, suggesting the participation of proteolytic activity of the enzyme. In addition, chymase stimulated eosinophil migration in vitro in a concentration-dependent manner. Taken together, these observations suggest that mast cell chymase may contribute to development of the DNFB-induced dermatitis, probably by promoting eosinophil infiltration. It is therefore possible that chymase plays a role in pathogenesis of chronic dermatitis such as atopic dermatitis. 相似文献