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1.
Ann R Coll Surg Engl ; 2022 Jan 04.
Article in English | MEDLINE | ID: mdl-34981986

ABSTRACT

We report a rare case of adrenal extramedullary haematopoiesis (EMH) in a thalassaemia patient in Cyprus. A 40-year-old woman with ß-thalassaemia presented with a 2-day history of non-specific right-sided abdominal pain on routine follow-up for her thalassaemia treatment. Her laboratory tests were not dissimilar to her routine results and no palpable mass was detected. Computed tomography findings revealed a 5.8×4.2×4.6cm solid lesion in the right adrenal gland. Surgical excision was advised for this symptomatic large tumour with the possibility of malignancy in a young patient, and a laparoscopic adrenalectomy was performed. Postoperative follow-up was uneventful. A review of the literature in PubMed and MEDLINE revealed 14 case reports worldwide with adrenal EMH secondary to ß-thalassaemia. EMH tumours in patients with thalassaemia have been reported incidentally, which stresses the importance of considering this in the list of differentials of adrenal incidentalomas in this patient population.

2.
Ann Oncol ; 23(2): 442-9, 2012 Feb.
Article in English | MEDLINE | ID: mdl-21873272

ABSTRACT

BACKGROUND: TERT (telomerase reverse transcriptase) plays a critical role in tumor cell growth and survival. In an expanded phase II study, we evaluated the immunological and clinical responses to the TERT-targeting Vx-001 vaccine in patients with advanced solid tumors. METHODS: HLA-A*0201-positive patients received two subcutaneous injections of the optimized TERT(572Y) peptide followed by four injections of the native TERT(572) peptide, every 3 weeks. Peptide-specific immune responses were evaluated by enzyme-linked immunosorbent spot at baseline, and after the second and the sixth vaccinations. RESULTS: Fifty-five patients were enrolled and 34 (62%) completed the six vaccinations. A TERT-specific T-cell immune response was observed in 55% and 70% of patients after the second and the sixth vaccinations, respectively. The disease control rate (DCR) was 36% [95% confidence interval (CI) 24% to 49%], including one complete and one partial response. Immunologically responding patients had a better clinical outcome than nonresponders [DCR: 44% versus 14% (P = 0.047); progression-free survival (PFS): 5.2 versus 2.2 months (P = 0.0001) and overall survival: 20 versus 10 months (P = 0.041)]. Multivariate analysis revealed that the immunological response was an independent variable associated with increased PFS (hazard ratio = 3.35; 95% CI 1.7-6.7). CONCLUSION: Vx-001 vaccine was well tolerated and induced a TERT-specific immunological response, which was significantly correlated with improved clinical outcome.


Subject(s)
Cancer Vaccines/administration & dosage , Neoplasms/immunology , Neoplasms/therapy , Telomerase/administration & dosage , Adult , Aged , Aged, 80 and over , Cancer Vaccines/immunology , Female , HLA-A2 Antigen/immunology , Humans , Injections, Subcutaneous , Male , Middle Aged , Neoplasms/pathology , Telomerase/immunology , Treatment Outcome
3.
J Hazard Mater ; 186(2-3): 999-1006, 2011 Feb 28.
Article in English | MEDLINE | ID: mdl-21177030

ABSTRACT

Regeneration of the activity of three-way catalytic converters (TWCs) was tested for the first time using a biodegradable metal chelating agent (S, S-ethylenediamine disuccinic acid (S, S-EDDS). The efficiency of this novel environmentally friendly solvent in removing various contaminants such as P, Zn, Pb, Cu and S from commercial aged three-way catalysts, and improving their catalytic performance towards CO and NO pollutants removal has been investigated. Four samples of catalysts from the front and rear inlets of two different TWCs with different mileages and aged under completely different driving conditions were investigated. The catalysts were characterized using various techniques, such as X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area measurements (N(2) adsorption at 77 K). Quantitative ICP-MS analyses and SEM-EDS studies show the removal of Zn, P and Pb. SEM-EDS images obtained at low magnification (50 µm) showed considerable differences in the surface morphology and composition after washing with S, S-EDDS. However, XRD studies indicated neither little to no removal of major contaminant compound phases nor major structural changes due to washing. Correspondingly, little or no enhancement in BET surface area was observed between the used and washed samples. Light-off curves show that the regeneration procedure employed can effectively improve the catalytic performance towards NO pollutant.


Subject(s)
Automobiles , Chelating Agents/chemistry , Ethylenediamines/chemistry , Succinates/chemistry , Biodegradation, Environmental , Catalysis , Mass Spectrometry , Metals, Heavy/chemistry , Microscopy, Electron, Scanning , Porosity , Powders , Surface Properties , X-Ray Diffraction
4.
Ann N Y Acad Sci ; 1054: 273-82, 2005.
Article in English | MEDLINE | ID: mdl-16339675

ABSTRACT

Morbidity and mortality related to thalassemia have been reduced significantly with modern medical treatment, and quality of life (QOL) should now be considered an important index of effective health care. An assessment of QOL differs from other forms of medical assessment in that it focuses on the individuals' own views of their well-being and assesses other aspects of life, giving a more holistic view of well-being. There is very little published work on evaluation of QOL in thalassemia. A suitable tool should be reproducible, sensitive to the major features of the condition that affect patients' lives, and applicable in the range of different cultural, age, and social settings. Such an instrument would be valuable in evaluating new forms of treatment and in comparing health outcomes between different clinics. Two instruments have been assessed, one derived from the WHOQOL-100 questionnaire, and one designed specifically for thalassemia, which assesses psychosocial and clinical burden, as they affect adult patients, parents, and children. Further studies are required to develop and assess such tools for use in thalassemia. Another approach is to seek patients' own views of their routine treatment and the extent to which medical treatment affects QOL. Results from patient questionnaires in the United Kingdom and Cyprus are consistent in finding problems with organization of transfusions, insufficient options with chelation therapy, and poor communication. Practical measures could be taken to address these issues.


Subject(s)
Quality of Life , Thalassemia/psychology , Adolescent , Adult , Caregivers/psychology , Chelating Agents/administration & dosage , Chelating Agents/therapeutic use , Chelation Therapy/psychology , Child , Child, Preschool , Cyprus , Deferoxamine/administration & dosage , Deferoxamine/therapeutic use , Female , Humans , Infant , Injections, Subcutaneous/psychology , Male , Parents/psychology , Patient Compliance , Socioeconomic Factors , Surveys and Questionnaires , Thalassemia/drug therapy , Thalassemia/therapy , United Kingdom
5.
J Pediatr Endocrinol Metab ; 11 Suppl 3: 935-43, 1998.
Article in English | MEDLINE | ID: mdl-10091168

ABSTRACT

With recent therapeutic advances, thalassemic patients can now reach adulthood and attain reproductive capacity. Endocrine complications due to hemosiderosis and especially hypogonatotropic hypogonadism, which present either with sexual infantilism and primary amenorrhea or with secondary amenorrhea, are common in thalassemic women. The aim of this study was to estimate the frequency of fertility among our female thalassemic patients. Our population included 50 married women with thalassemia major (TM) and 12 with thalassemia intermedia (TI) who are regularly followed in our thalassemic centers. Of the 50 patients with TM, 7 had primary amenorrhea (PA), 9 had secondary amenorrhea (SA), and 34 had normal menstrual function (NM), as did all the patients with TI. Overall we had 62 women who were able to achieve 90 pregnancies and give birth to 87 healthy babies. Most of our patients became pregnant around the age of 25 years. Associated endocrine complications were rare except in the group of patients with PA, as expected. In all patients with PA and SA, the 17 pregnancies were induced (intercourse 10, insemination 3, IVF 4). In the patients with NM and TI, 66 pregnancies were achieved spontaneously and 7 following induction (insemination 3, IVF 4). There were four twin and one triple pregnancies, which all resulted in premature deliveries. Among the seven couples in which both partners had thalassemia major, sperm donation was used in 5 cases, ovum donation in one case, and one pregnancy was achieved spontaneously. These 90 pregnancies resulted in 69 full-term, 12 pre-term, 7 abortions and 2 stillbirths. No severe obstetric complication was observed except for two patients with preeclampsia. One patient with PA who carried the triple pregnancy developed severe cardiac failure, which was successfully treated. Transfusion requirements were increased during pregnancy. Discontinuation of desferrioxamine resulted in elevation of ferritin levels during the second and third trimesters of pregnancy and after delivery. Nine patients who were examined with cardiac echo had a transient increase of ESD and EDD during pregnancy, with return to normal after delivery. Labor was performed by Caesarian section in 26 births (26%) out of the 81 successful pregnancies. These collected data represent the largest number of pregnancies in thalassemic females reported so far and are clearly encouraging for the ultimate improvement of the quality of life in thalassemic patients.


Subject(s)
Infertility, Female/etiology , Infertility, Female/therapy , beta-Thalassemia/complications , Adult , Amenorrhea/etiology , Blood Transfusion , Delivery, Obstetric , Female , Ferritins/blood , Fertilization in Vitro , Humans , Hypogonadism/etiology , Male , Oocyte Donation , Pregnancy , Pregnancy Complications, Hematologic , Pregnancy, Multiple , Spermatozoa , Tissue Donors , Triplets , Twins , beta-Thalassemia/therapy
6.
Genet Epidemiol ; 12(5): 489-97, 1995.
Article in English | MEDLINE | ID: mdl-8557181

ABSTRACT

Apolipoprotein E (APOE) plays an important role in the multifactorial etiology of both cardiovascular disease and Alzheimer's disease. Polymerase chain reaction (PCR) was used to investigate the APOE gene polymorphism in 335 unrelated Greek Cypriots living on the island of Cyprus. For the most common APOE genotypes, the Greek Cypriots followed the general Caucasian European pattern of having higher genotypic frequencies of E3/3, followed by E3/4, and then E2/3. Among the European populations compared, Greek Cypriots exhibited the lowest relative frequency of the E3/4 genotype (12.83%). Also, the relative frequencies of the E2 and E4 alleles in Greek Cypriots were among the lowest around the world (5.4% and 7.0%, respectively). This was also demonstrated by using the complete and the average clustering methods of analysis where the APOE allele relative frequencies in Greek Cypriots were compared to 46 other populations. The Greek Cypriot population in these analyses clustered with populations mainly from south Europe and Japan which have low E2 and E4 allele frequencies. The Greek Cypriot population will be studied further for elucidating the effect(s) and the role of APOE in cardiovascular disease and the APOE4 allele as a possible metabolic factor affecting the rate of expression of both Alzheimer's disease and vascular dementia.


Subject(s)
Apolipoproteins E/genetics , Gene Expression/genetics , Gene Frequency/genetics , Polymorphism, Genetic/genetics , Adolescent , Adult , Aged , Alzheimer Disease/genetics , Apolipoprotein E2 , Apolipoprotein E4 , Cardiovascular Diseases/genetics , Cluster Analysis , Cyprus , Female , Genotype , Greece/ethnology , Humans , Male , Middle Aged
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