Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 4 (1994), S. 434-438 
    ISSN: 1432-1084
    Keywords: Chronic enlargement ; Salivary glands ; Cyst ; HIV-positive ; Nodes ; Ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Chronic enlargement of salivary glands and mainly of parotid glands has been noted in HIV-positive patients. Such alterations are due mainly to adenopathies (mainly intraglandular) or to the formation of lymphoepithelial cysts. During the period between January 1990 to June 1993 we studied 63 HIV-positive patients with enlargement (mainly monolateral) of the parotid glands and one patient with involvement of the submandibular gland. There were 59 adults (44 males and 15 females) 22–50 years of age, and five children 3–8 years. The fastest, least expensive and most appropriate investigative means for this pathology is echography, which was carried out in all patients. Only 18 patients were also studied with CT. We observed lymphadenopathies within or outside the parotid glands and lymphoepithelial cysts. Within some intraparotid cysts we observed an ultrasonographic pattern consisting of small high-level formations in suspension which, from cytologic evaluation of material obtained by needle aspiration, were referable to small crystals of calcium oxalate. We hypothesize that such microcalculi may play a role in the obstructive mechanism of the ducts in association with lymphoepithelial infiltration of the parotid ducts.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Advances in science and technology Vol. 45 (Oct. 2006), p. 1759-1764 
    ISSN: 1662-0356
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Natural Sciences in General , Technology
    Notes: Advanced structural ceramics such as Hot Pressed Silicon Nitride (HPSN) and ReactionBonded Silicon Carbide (RBSC), thanks to their low density (3.1 ÷ 3.4 gr/cm3) and to their thermostructuralproperties, are interesting candidates for aerospace applications. This research investigatesthe feasibility of employing such monolithic advanced ceramics for the production of turbine vanesfor aerospace applications, by means of a finite element analysis. A parametric study is performedto analyse the influence of the coefficient of thermal expansion, the specific heat, the thermalconductivity, and the Weibull modulus on structural stability, heat transfer properties and thermomechanicalstresses under take-off and flying conditions. A nodal point that is evidenced is the highintensity of thermal stresses on the vane, both on steady state and in transient conditions. In order toreduce such stresses various simulations have been carried out varying geometrical parameters suchas the wall thickness. Several open questions are evidenced and guidelines are drawn for the designand production of ceramic vanes for gas turbines
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Gene 145 (1994), S. 257-259 
    ISSN: 0378-1119
    Keywords: Multicopy tandem repeats ; degenerate sub-repeats ; nucleotide sequence ; pronghorn antelope
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary.  Hepatitis C viraemia, in 38 human immunodeficiency virus positive (HIV+)/hepatitis C virus positive (HCV+) patients, was determined in haemophilic patients during the 4 years since initiation of highly active antiretroviral therapy (HAART). Six of 38 patients had persistently HCV-negative viraemia for more than 2 years. No correlation between HCV-negative viraemia and CD4+ T-cell counts, HIV viral load, age, type or severity of haemophilia could be established. Reduced levels of HIV viral load and the immune reconstitution that follows the initiation of HAART were not enough to explain the disappearance of HCV from plasma. Individuals who cleared plasma HCV had significantly higher CD8+ T-cell counts (P = 0.0013) (mean ± SE: 1153 ± 117.8cells μL−1) than those with HCV-positive viraemia (819.1 ± 40.72 cells μL−1). Because HCV could maintain a low replication level in peripheral blood mononuclear cells (PBMC), we cultured PBMC of five of six patients with undetectable HCV viraemia. We found four of five HCV RNA-positive cultures. The presence of HCV RNA in our cultures proved that these cells may be an important viral reservoir that could contribute to HCV recurrence in plasma even after long periods of negative viraemia. In summary, our results indicate that in spite of prolonged HCV-negative plasma viraemia, HCV patients that are co-infected with HIV may harbour replication-competent HCV in their PBMC. Therefore, true clearance of HCV infection is difficult to achieve in these patients.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Oxford UK : Blackwell Science Ltd
    Haemophilia 4 (1998), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The monocyte–macrophage system is known to play a central role in HIV infection, and expression of CD4 on the surface of monocytes/macrophages is important, since this molecule is a key factor for the entrance of HIV into susceptible cells. In this paper we evaluated the expression of CD4 in monocytes of haemophiliac patients (He) who had been infected with HIV (HIV+ He) through transfusion of contaminated plasma concentrates. Thirty seropositive patients (HIV+ He), 10 seronegative He patients (HIV− He) and 20 voluntary normal blood donors were studied. Phenotypic evaluation of monocytes was performed by flow cytometry of peripheral blood stained with anti-CD45, -CD3, -CD4 and -CD14 monoclonal antibodies. The percentage of CD4 monocytes was increased in all HIV+ patient groups, but it was highest in those belonging to Groups III and IV A of the CDC classification. Furthermore, the median of fluorescence intensity of CD4+ monocytes from individual patients was shifted to the right, indicating expression of increased numbers of CD4 molecules on the cell membrane of monocytes. This could in turn favour HIV infection and viral persistence, facilitating in vivo dissemination of the virus.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Oxford UK : Blackwell Science Ltd
    Haemophilia 8 (2002), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The significant progress made in recent years in the safety and efficacy of both plasma-derived and recombinant factor concentrates has allowed treatment programmes to be developed that go beyond the simply curative or the treatment of the consequences of the disease (episodic or on-demand treatment), enabling the criteria of preventative medicine to be applied to congenital bleeding disorders. The aim of these programmes is to achieve constant, minimum levels of factor in patients above 1 or 2%, thereby converting severe haemophilia into moderate haemophilia.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Haemophilia 7 (2001), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Rifampicin is an antibiotic that has been currently used for the treatment of noninfectious articular lesions with satisfactory results. The first experience was performed with patients who presented rheumatoid arthritis, and later with haemophilic patients. The clinical experience of three haemophilia centres which used rifampicin for the treatment of chronic haemophilic synovitis is presented here. The protocols were different. It was observed that rifampicin is more effective when it is used in small joints (elbows and ankles), than when used in bigger ones (knees), and that a high number of injections predicts failure. Mention is also made of experimental studies in animals where it was shown that the healing pattern of rifampicin is similar to that of NSAIDs.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Haemophilia 5 (1999), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The experience with extensor supracondylar femoral osteotomy as treatment for the flexed haemophilic knee is presented with the description of 19 patients treated during a 30-year period (1968–98).The average age of the patients was 16 (8–35 years), and the average age follow-up was 13 years (3–30 years). Six patients had flexion fixed deformity while the rest presented 40° average range of motion (10–75°). In 13 patients a single osteotomy without internal fixation was performed, in one an osteosynthesis with a condylar plate and in five stabilization was achieved by means of Blount staples. Previous surgery was performed in two patients with patello-femoral ankylosis. The osteotomy site was consolidated in every patient and the deformity was corrected. Two bleeding complications were observed: one haemarthrosis and one psoas haematoma.Flexion relapsed in one patient who underwent another procedure after 12 years. One patient presented with a peroneal nerve paralysis; another one a genu recurvartum; which required flexor osteotomy.The extensor supracondylar femoral osteotomy is a procedure that aligns the limb with scarce modification of articular mobility.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. Rifampicin synoviorthesis has been empirically used for the treatment of haemophilic synovitis for some time. This paper reports on the experience of three Latin American centers with this treatment and compares it with radioactive synoviorthesis results. Chemical synoviorthesis with rifampicin is best indicated in younger patients (〈15 years) and small joint (ankles and elbows).
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Between January 1992 and December 1994, a prospective study was performed in two centres comparing chemical synovectomy using repeated weekly injections (range, 1–17) of Rifampicin (Group R) vs. radioactive synovectomy using 1–2 injections of Yttrium-90 (Group Y). The study was performed on 38 joints in a total of 35 haemophilic patients suffering from chronic haemophilic synovitis unresponsive to 3 months of conservative treatment (substitution therapy with the deficient coagulation factor plus a rehabilitation protocol). Group R included 18 patients with an average age of 9 years, with an average follow-up time of 25 months. In Group R, 19 joints were treated: nine knees, four elbows and six ankles. Group Y included 17 patients with an average age of 18 years, with an average follow-up time of 23 months. In Group Y, 19 joints were treated: 14 knees, two elbows and three ankles.The joints were evaluated according to the frequency of bleeding episodes and the Pettersson radiographic score. On the basis of the radiographic scale at the time of the synoviortheses, the joints were categorized as stage I (0 points), stage II (1–2 points), stage III (3–7 points), stage IV (8–10 points) and stage V (11–13 points).The overall results showed that in Group R, bleeding decreased in 12 joints, remained the same in six and worsened in one. In Group Y, bleeding decreased in 11 joints, remained the same in seven and worsened in one.In both Groups, bleeding was controlled best if joints were in stages I and II. In stages III, IV and V, synoviorthesis should not be carried out in haemophilia because it is not effective. Use of radioactive substances in persons under the age of 9 years has been discouraged in the past and therefore only Rifampicin was used in this age group. However, in patients over 9 years of age, this study showed similar decrease of bleeding in both treatment groups. Taking into account the advantages and disadvantages of both agents, we suggest the use of Rifampicin in elbows and ankles but prefer Yttrium-90 for the knees.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...