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1.
G De Sanctis F Ascoli M Brunori 《Proceedings of the National Academy of Sciences of the United States of America》1994,91(24):11507-11511
The acid unfolding pathway of apominimyoglobin (apo-mini-Mb), a 108-aa fragment (aa 32-139) of horse heart apomyoglobin has been studied by means of circular dichroism, in comparison with the native apoprotein. Similar to sperm whale apomyoglobin [Hughson, F. M., Wright, P. E. & Baldwin, R. L. (1990) Science 249, 1544-1548], a partly folded intermediate (alpha-helical content approximately 35%) is populated at pH 4.2 for horse heart apomyoglobin. For this intermediate, Hughson et al. proposed a structural model with a compact subdomain involving tertiary interactions between the folded A, G, and H helices, with the remainder of the protein essentially unfolded. As described in this paper, a folding intermediate with an alpha-helical content of approximately 33% is populated at pH 4.3-5.0 also in apo-mini-Mb. The acid unfolding pathway is similarly affected in both the native and the mini apoprotein by 15% trifluoroethanol, a helix-stabilizing compound. Thus, the folding of the apo-mini-Mb intermediate is similar to that observed for the native apoprotein, in spite of the absence in the miniprotein of the A helix and of a large part of the H helix, which are crucial for the stability of apo-Mb intermediate. Our results suggest that acquisition of a folded state in apo-mini-Mb occurs through an alternative pathway, which may or may not be shared also by apo-Mb. 相似文献
2.
A M Lomeo L Manzione G Martoccia G Iacobellis D De Sanctis R Maglietta G A Vita 《Minerva ginecologica》1992,44(3):125-127
Papillary hidradenoma of the vulva is a benign neoplasm arising from apocrine sweat glands of the skin. The treatment of choice is local excision. The prognosis for the patient is excellent. We present one case observed recently. 相似文献
3.
G De Sanctis A Sedici I Palladini G De Blasis A Di Rocco A Jenca 《Minerva chirurgica》1990,45(6):377-381
Six cases of intrahepatic biliary lithiasis, condition rarely observed in western countries, are reported. Following a review of the literature and on the basis of personal experience, stress is laid on problems of classification, clinical and instrumental diagnosis and, in particular, the therapeutic approach to intrahepatic biliary lithiasis by the endoscopic transpapillary way. 相似文献
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A Sedici G De Blasis I Palladini A Di Rocco A Jenca G De Sanctis 《Minerva chirurgica》1990,45(5):227-231
Endoscopic Sphincterotomy (E.S.) is a simple and efficacious method for the management of bile duct stones and papillary stenosis. In this series, the E.S. was attempted in 25 patients and performed in 23 (92%). Nine patients had common bile duct stones. Eleven patients (48%) had common bile duct and gallbladder stones. Two patients (8.7%) had intrahepatic lithiasis and one patient (4.3%) had papillary stenosis without gallstones. After E.S. all patients underwent instrument removal of bile duct stones, using "Dormia" basket and "Fogarty" balloon catheter. Transnasal bile duct drainage was performed in 20 patients (86.9%). Early complications were observed in three patients (13%); one sphincterotomy side bleeding and two acute pancreatitis, which were treated successfully conservatively. Mean follow-up was 10.7 months (range 3-27 months). Late complications did not occur for the method and/or for gallbladder stones. Four patients over 80 years of age, died for unrelated causes during follow-up. 相似文献
6.
V. De Sanctis A. Pinamonti A. Di Palma M. Sprocati G. Atti M. R. Gamberini C. Vullo 《European journal of pediatrics》1996,155(5):368-372
Nine transfusion-dependent -thalassaemia major patients (seven males and two females), aged 4–15 years, with growth retardation and severe rickets-like radiological lesions due to continuous subcutaneous chelation therapy with desferrioxamine (45–75 mg/kg body weight, 6–7 times/week), were seen in our centre during the last 8 years. Serum ferritin levels ranged from 976 to 4115 g/l. There was a progressive decline in growth velocity in these patients 2–3 years before the appearance of rickets-like radiological lesions. All patients underwent surgery to correct genu valgum and/or slipped capital epiphyses. The final height was below the 3rd percentile in six patients (SDS: from –2.9 to –5.2). The short stature was mainly due to a disproportion between upper and lower segments. Six of the patients had an associated sensorineural hearing loss.Conclusion Our data emphasize the importance of an accurate surveillance of the toxic effects of desferrioxamine treatment and warn of the risk of overtreating patients with low iron overload and also suggest a possible individual idiosyncrasy to the adverse effects of chelation therapy. 相似文献
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Unusual phenotype (Leu 7+, OKT4+, OKM1+) expressed by cells from a patient with an abnormal expansion of granular lymphocytes 总被引:1,自引:0,他引:1
I Quinti L Pacilli V Zoli G De Sanctis E Mannella G Bonomo A De Laurenzi F Pandolfi 《Acta haematologica》1984,71(5):310-315
We report the case of a 70-year-old female with a lymphocytosis which was casually detected during a routine examination. Immunological studies revealed the expansion of granular lymphocytes (GL) with the following, previously undescribed phenotype: Leu 7+, OKT3+, OKT4+, OKT8-, OKM1+. These cells were tested for their functional activities and found to exert neither helper nor suppressor functions in in vitro tests. Cytotoxic activities demonstrated a strong ADCC and a markedly reduced NK function. 1 year later the clinical course has remained good without any treatment and we suggest that this case should be classified as an abnormal expansion of GL, despite the OKT4 positivity of the cells. Our data point out the importance of a careful immunological study of cells from these rare patients and suggest the existence of a normal GL population expressing the OKT4 phenotype, which is possibly expanded in this patient. 相似文献
10.
Rivaroxaban for thromboprophylaxis among patients recently hospitalized for acute infectious diseases: a subgroup analysis of the MAGELLAN study 下载免费PDF全文
K. P. Cohoon Y. De Sanctis L. Haskell R. D. McBane T. E. Spiro 《Journal of thrombosis and haemostasis》2018,16(7):1278-1287
Essentials
- Net benefit of venous thromboprophylaxis (VTE) in patients hospitalized for infections is unknown.
- MAGELLAN trial subgroup analysis was performed for patients hospitalized for acute infectious diseases.
- At day 35, prolonged rivaroxaban prophylaxis reduced VTE compared to enoxaparin (4.2% vs. 6.6%).
- Rivaroxaban prophylaxis reduced VTE in patients hospitalized for active lung infections.