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排序方式: 共有551条查询结果,搜索用时 15 毫秒
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HERMAN TOURNAYE RONNY JANSSENS PAUL DEVROEY RK VAN STEIRTEGHEM 《International journal of andrology》1994,17(1):1-8
In order to evaluate the effects of pentoxifylline on sperm motility and longevity, a controlled in-vitro study was conducted on normozoospermic donor semen samples using the Cellsoft automated system for sperm motility analysis. After incubation and selection, pentoxifylline was found to improve the recovery of spermatozoa and to increase their velocity. In the subgroup of progressively motile spermatozoa, curvilinear velocity was also enhanced. It is concluded that pentoxifylline has an effect on the vigour, but not on the pattern, of sperm motion. Pentoxifylline did not improve the motility characteristics of senescent spermatozoa in normozoospermic sperm samples. Sperm survival, as shown by supra-vital staining, and motility longevity both decreased with time after pentoxifylline treatment. 相似文献
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V. JNSSON H. D. SCHRDER W. TROJABORG T. STAEHELIN JENSEN E. HIPPE M. MRK HANSEN 《Journal of internal medicine》1992,232(2):185-191
A study of 17 patients with autoimmune axonal or demyelinating peripheral neuropathy in combination with M-component is described. The M-component was associated with MGUS (monoclonal gammopathy of undetermined significance) in 12 patients, CLL in one patient, WaldenstrÖm's disease in one patient, and myeloma in three patients. Immunohistological examination with direct and indirect fluorescence showed binding of antibodies to nerve structures of the same class and light chain as seen in the M-component. In five cases of IgM M-component, the demyelinating neuropathy was caused by binding of the IgM M-protein and complement C3b to myelin-associated glycoproteins (MAG). In 12 cases with axonal neuropathy, binding of IgG to the connective tissue of the peri- and endoneurium was found in 50% of cases, IgM in five cases, and IgD in one case. None of the patients had central nervous system (CNS) symptoms. The clinical and therapeutic difficulties are discussed; only two patients with an acute course responded to immunosuppression. A marked co-expression of other autoimmune phenomena is interpreted in the light of cross-reactions between the autoantibody and similar tissue autoantigens. 相似文献
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Sandford R; Sgotto B; Aparicio S; Brenner S; Vaudin M; Wilson RK; Chissoe S; Pepin K; Bateman A; Chothia C; Hughes J; Harris P 《Human molecular genetics》1997,6(9):1483-1489
PKD1 is the major locus of the common genetic disorder autosomal dominant
polycystic kidney disease (ADPKD). Analysis of the predicted protein
sequence of the human PKD1 gene, polycystin, shows a large molecule with a
unique arrangement of extracellular domains and multiple putative
transmembrane regions. The precise function of polycystin remains unclear
with a paucity of mutations to define key structural and functional
domains. To refine the structure of this protein we have cloned the genomic
region encoding the Fugu PKD1 gene. Fugu PKD1 spans 36 kb of genomic DNA
and has greater complexity with 54 exons compared with 46 in man.
Comparative analysis of the predicted protein sequences shows a lower level
of homology than in similar studies with identity of 40 and 59% similarity.
However key structural motifs including leucine rich repeats (LRR), a
C-type lectin and LDL-A like domains and 16 PKD repeats are maintained. A
region of homology with the sea urchin REJ protein was also confirmed in
Fugu but found to extend over 1000 amino acids. Several highly conserved
intra- and extra- cellular regions, with no known sequence homologies, that
are likely to be of functional importance were detected. The likely
structure of the membrane associated region has been refined with
similarity to the PKD2 protein and voltage gated Ca2+ and Na+ channels
highlighted over part of this area. The overall protein structure has
therefore been clarified and this comparative analysis derived structure
will form the basis for the functional study of polycystin and its
individual domains.
相似文献
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Renal transplant (RT) is now a therapy of choice for end stage renal disease (ESRD). The Nephrology Unit, Asvini started functioning in Dec 90 and to date 1298 sittings of hemodialysis have been given to 45 patients. Of these, 35 were in ESRD and 11 patients underwent renal transplantation at this hospital during the period Jan 91 – Dec 93. One patient expired after 18 months of transplantation due to infection. Early experience in screening patients for RT, use of immunosuppression, management of rejection episodes and protocol are presented with special emphasis on its relevance to the Armed Forces.KEY WORDS: Transplantation, Renal Failure, Immunosuppression, Rejection 相似文献
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Pediatric health screening procedures, both prenatal and postnatal, have a tremendous potential in improving the health status of children and in turn reducing the resource burden on the parents and the State. The existing recommendations, inherent problems and different screening procedures are discussed. The need for suitable mass screening pediatric procedures in the Indian context is stressed.KEY WORDS: Pediatric screening procedures 相似文献
10.
Wang WS; Hsieh RK; Chiou TJ; Liu JH; Fan FS; Yen CC; Tung SL; Chen PM 《Japanese journal of clinical oncology》1998,28(9):551-554
A 54-year-old man was treated with weekly 24-h infusion of high-dose
5-fluorouracil (2600 mg/m2) and leucovorin (100 mg/m2) for metastatic colon
cancer. At first, he tolerated the treatment well and no significant
toxicity was identified. After a total of eight courses of treatment, a
stable disease was observed, but mild shortness of breath was found on
occasion. The patient had no previous history of cardiac disease and the
heart performance assessed by left ventricular ejection fraction before
treatment was normal. Unfortunately, acute pulmonary edema with lethal
cardiogenic shock occurred during the ninth course of treatment, in spite
of intensive medical treatment. The chest X-ray showed extreme
cardiomegaly. Repeated assessment of his heart function by echocardiogram
and ventricular ejection fraction revealed a very poor cardiac performance.
Toxic cardiogenic shock during weekly 24-h infusion of high-dose
5-fluorouracil and leucovorin is extremely rare. To the best of our
knowledge, no case has been reported in the English literature. We report a
case and the relevant literature about the incidence, clinical picture and
possible pathophysiology on 5-fluorouracil-related cardioxicity is
reviewed.
相似文献