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Maioli M, Rinaldi S, Cruciani S, Necas A, Fontani V, Corda G, Santaniello S, Rinaldi A, Pinheiro Barcessat AR, Necasova A, Castagna A, Filipejova Z, Ventura C, Fozza C. Antisenescence Effect of REAC Biomodulation to Counteract the Evolution of Myelodysplastic Syndrome. Physiol Res 2022. [DOI: 10.33549/physiolres.934903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
About 30 percent of patients diagnosed with myelodysplastic syndromes (MDS) progress to acute myeloid leukemia (AML). The senescence of bone marrow‐derived mesenchymal stem cells (BMSCs) seems to be one of the determining factors in inducing this drift. Research is continuously looking for new methodologies and technologies that can use bioelectric signals to act on senescence and cell differentiation towards the phenotype of interest. The Radio Electric Asymmetric Conveyer (REAC) technology, aimed at reorganizing the endogenous bioelectric activity, has already shown to be able to determine direct cell reprogramming effects and counteract the senescence mechanisms in stem cells. Aim of the present study was to prove if the anti-senescence results previously obtained in different kind of stem cells with the REAC Tissue optimization – regenerative (TO-RGN) treatment, could also be observed in BMSCs, evaluating cell viability, telomerase activity, p19ARF, P21, P53, and hTERT gene expression. The results show that the REAC TO-RGN treatment may be a useful tool to counteract the BMSCs senescence which can be the basis of AML drift. Nevertheless, further clinical studies on humans are needed to confirm this hypothesis.
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Affiliation(s)
- M Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari (SS) Italy. E-mail:
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Parodi G, Talanas G, Mura E, Corda G, Dossi F, Canonico M, Guarino S, Nusdeo G, Franca P, Raccis M, Pisano M, Sanna G, Saba P. Orodispersible ticagrelor use in acute coronary syndrome patients: the Ticagrelor Administered as Standard Tablet or orodispersiblE foRmulation (TASTER) Study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Orodispersible tablet (ODT) is a different tablet formulation that disperse upon contact with the moist mucosal surfaces of the oral cavity and quickly release its components before swallowing; thus drug dissolution and absorption, as well as onset of clinical effect, can be obtained conveniently easily and quickly. Recently, Ticagrelor 90 mg ODT has become available and bioequivalence studies on healthy volunteers documented its effectiveness with consequent approval by the European Medicine Agency. It is unknown whether Ticagrelor ODT might be an effective route of drug administration in high-risk acute coronary syndrome (ACS) patients.
Purpose
The aim of the present study is to evaluate the superiority in platelet inhibition with 180 mg Ticagrelor loading dose (LD) administered as ODT as compared with standard (coated table) Ticagrelor formulation, among 130 ACS patients undergoing PCI.
Methods
Patients presenting within STEMI or very high-risk NSTEMI referred for immediate (<2 hours) angiography were randomly assigned to receive ODT or standard ticagrelor LD. Platelet reactivity was assessed by Platelet Reactivity Units (PRU) VerifyNow 1, 2, 4 and 6 hours after ticagrelor LD. The primary study endpoint was residual platelet reactivity 1 hour after Ticagrelor LD. Safety endpoints were major bleedings and other in-hospital ticagrelor administration-related adverse events across the two different regimens of Ticagrelor administration. Potential morphine-ticagrelor interaction was assessed by stratified randomization according to morphine use. An interim analysis was planned after the enrollment of 50% (n=65 patients) of the entire study population. The study was supported by an unrestricted grant from AstraZeneca.
Results
At the interim analysis, the 2 study group were well matched according to all the baseline characteristics (such as age, sex, diabetes mellitus, chronic renal failure, STEMI at presentation, Killip class, multivessel disease, number of stents implanted, and morphine use). Main pharmacodynamic data are depicted in Figure 1. One hour after LD, PRU (97±99 vs 115±92; p=0.40) was numerically lower, but not statistically different, in the ODT group as compared to standard ticagrelor group. The percentage of platelet inhibition was 55±44% vs 42±44% (p=0.21) in the 2 groups. No significant difference was observed between patients receiving ODT or standard ticagrelor LD regarding in-hospital adverse events or drug side-effects. The study enrollment is ongoing, and final results will be presented at the Congress.
Conclusions
ODT administration might represent the most convenient way of treating lying supine ACS patients in the ambulance, emergency room or on the cath lab. Moreover, in patients with difficulties in swallowing ODT represent an easy way of ticagrelor administration.
Figure 1
Funding Acknowledgement
Type of funding source: Private grant(s) and/or Sponsorship. Main funding source(s): AstraZeneca S.P.A.
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Affiliation(s)
- G Parodi
- University of Sassari, Sassari, Italy
| | - G Talanas
- University of Sassari, Sassari, Italy
| | - E Mura
- University of Sassari, Sassari, Italy
| | - G Corda
- University of Sassari, Sassari, Italy
| | - F Dossi
- University of Sassari, Sassari, Italy
| | | | - S Guarino
- University of Sassari, Sassari, Italy
| | - G Nusdeo
- University of Sassari, Sassari, Italy
| | - P Franca
- University of Sassari, Sassari, Italy
| | - M Raccis
- University of Sassari, Sassari, Italy
| | - M Pisano
- University of Sassari, Sassari, Italy
| | - G.D Sanna
- University of Sassari, Sassari, Italy
| | - P.S Saba
- University of Sassari, Sassari, Italy
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Montereggi F, Sanna GD, Corda G, Ponti E, Murgia A, Talanas G, Saba PS, Parodi G. P3580Impact of glucose-6-phosphate dehydrogenase deficiency on the extent and severity of coronary atherosclerosis in patients with acute coronary syndrome. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Studies in animal models and humans suggested that glucose-6-phosphate dehydrogenase (G6PD) deficiency, a genetically inherited condition causing haemolytic anemia, may be considered a risk factor for cardiovascular disease. It is currently unknown whether enzymatic activity may impact the extent and severity of coronary atherosclerosis in patients with acute myocardial infarction. This hypothesis was tested in a cohort of acute coronary syndrome (ACS) patients undergoing invasive management from Northern Sardinia, where the population prevalence of G6PD deficiency is the highest in the Mediterranean area.
Methods
The study was based on a prospective single-centre registry of consecutive ACS patients undergoing coronary angiography and subsequent percutaneous revascularization between January 2017 and December 2018, in which G6PD activity has been measured quantitatively using a biochemical assay based on G6PD/6GPD ratio in erythrocytes. Subjects were defined as deficient when the ratio was <0.80. The primary endpoint of the study was the severity of coronary artery disease as assessed by the SYNTAX I score at baseline angiography.
Results
Among the 466 enrolled patients, 41 (9%) showed G6PD deficiency. Patients with G6PD deficiency were less likely to have a history of dyslipidemia (27% vs 50%; p=0.005) or diabetes (12% vs 21%; p=0.105). As expected, at admission patients with deficiency had lower hemoglobin level (12.1 vs 13.7 g/dL; p=0.005) as compared with those without. By angiography, SYNTAX score resulted as 19±9 and 16±9 (p=0.039) in patients with and without G6PD deficiency; while the number of diseased (with >50% stenosis) vessels was 1.9 vs 1.6 (p=0.089) in the 2 study groups. Left main disease was detected in 15% and 7% (p=0.06) patients, respectively. G6PD deficiency emerged as an independent predictor of high SYNTAX score (OR=2.16, 95% CI 1.1–4.5; p=0.037). Angioplasty with coronary stenting of the culprit vessel was performed in all patients, while GP IIb/IIIa inhibitors were used in 30% and 14% (p=0.009) of patients with and without G6PD deficiency. Finally, in-hospital events were similar between the 2 study groups.
Conclusions
An increased extent and severity of coronary artery disease was observed in ACS patients with G6PD deficiency as compared with those without, despite the lower prevalence of “classic” cardiovascular risk factors.
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Affiliation(s)
| | - G D Sanna
- University of Sassari, Sassari, Italy
| | - G Corda
- University of Sassari, Sassari, Italy
| | - E Ponti
- University of Sassari, Sassari, Italy
| | - A Murgia
- University of Sassari, Sassari, Italy
| | - G Talanas
- University of Sassari, Sassari, Italy
| | - P S Saba
- University of Sassari, Sassari, Italy
| | - G Parodi
- University of Sassari, Sassari, Italy
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Scudiero F, Valenti R, Marcucci R, Sanna GD, Gori AM, Migliorini A, Vitale R, Giusti B, De Vito E, Corda G, Paniccia R, Parodi G. P6406Platelet reactivity in Hepatitis C virus infected patients on dual antiplatelet therapy for acute coronary syndrome. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Coronary artery disease (CAD) has been recognized as a serious and potentially life-threatening complication of Hepatitis C Virus (HCV) infection. High on treatment platelet reactivity has been associated with high risk of ischemic events in patients with CAD, but data regarding the association with HCV infection are still lacking.
Purpose
We sought to assess platelet reactivity on dual anti-platelet therapy and long-term outcome of acute coronary syndrome (ACS) patients infected with HCV.
Methods
ACS patients infected with HCV were matched to ACS patients without HCV for age, sex, diabetes, hypertension and renal function. Primary and secondary study endpoints were the proportion of patients with high on treatment platelet reactivity (HTPR) and long-term outcomes, respectively.
Results
HCV-infected ACS patients had higher levels of platelet reactivity (ADP10-LTA: 56% ± 18% vs. 44% ± 22%; p=0.002; Arachidonic Acid-LTA: 25% ± 21% vs. 16% ± 15%; p=0.011) and higher rate of HTPR on clopidogrel and aspirin compared with non-HCV patients. Multivariable analysis demonstrated HCV-infection to be an independent predictor of HTPR. At follow-up, estimated major adverse clinical events (MACE: cardiac death, non fatal myocardial infarction and any revascularization) were 57% vs. 37%, p=0.006 in HCV-infected ACS and non-HCV, respectively. Also, TIMI major bleeding rates were higher in HCV-infected subjects (11% vs. 3%; p=0.043) as compared with non-infected patients.
Platelet function according to HCV status
Conclusions
ACS patients with HCV infection have increased on treatment platelet reactivity, higher rate of HTPR, MACE and bleedings as compared with non-HCV patients.
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Affiliation(s)
- F Scudiero
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - R Valenti
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - R Marcucci
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - G D Sanna
- University of Sassari, Clinical and Interventional Cardiology, Sassari, Italy
| | - A M Gori
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - A Migliorini
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - R Vitale
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - B Giusti
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - E De Vito
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - G Corda
- University of Sassari, Clinical and Interventional Cardiology, Sassari, Italy
| | - R Paniccia
- Careggi University Hospital (AOUC), Cardiovascular and Thoracic Department, Florence, Italy
| | - G Parodi
- University of Sassari, Clinical and Interventional Cardiology, Sassari, Italy
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Corda G, Sala A. Non-canonical WNT/PCP signalling in cancer: Fzd6 takes centre stage. Oncogenesis 2017; 6:e364. [PMID: 28737757 PMCID: PMC5541719 DOI: 10.1038/oncsis.2017.69] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/08/2017] [Accepted: 06/14/2017] [Indexed: 12/13/2022] Open
Abstract
Frizzled receptors are the mediators of the wnt canonical and non-canonical pathways, which play fundamental roles in cell differentiation and organism development. A large body of work indicates that dysregulation of wnt signalling is a feature of oncogenic transformation, but most of the studies published so far focus on the assessment of the consequences of aberrations of the canonical pathway in human cancer. In this review, we discuss the emerging role of the wnt non-canonical pathway regulated by frizzled receptor 6 (Fzd6) in the pathogenesis of different types of human malignancies. The function played by Fzd6 in the physiology of normal and cancer cells has been highlighted in the view that an increased knowledge of the signalling pathways upstream and downstream of this receptor could ultimately result in the identification of new targets for cancer therapy.
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Affiliation(s)
- G Corda
- College of Health and Life Sciences, Brunel University London, Uxbridge, UK.,Institute of Environment, Health and Societies, Brunel University London, Uxbridge, UK
| | - A Sala
- College of Health and Life Sciences, Brunel University London, Uxbridge, UK.,Institute of Environment, Health and Societies, Brunel University London, Uxbridge, UK.,Dipartimento di Scienze Psicologiche, della Salute e del Territorio, University 'G d'Annunzio' Chieti-Pescara, Centro Studi sull'Invecchiamento, Chieti, Italy
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Fozza C, Virdis P, Contini S, Corda G, Longinotti M. P-246 T-cell receptor repertoire kinetic during azacitidine treatment. Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70293-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Velluzzi F, Caradonna A, Boy MF, Pinna MA, Cabula R, Lai MA, Piras E, Corda G, Mossa P, Atzeni F, Loviselli A, Usai P, Mariotti S. Thyroid and celiac disease: clinical, serological, and echographic study. Am J Gastroenterol 1998; 93:976-9. [PMID: 9647032 DOI: 10.1111/j.1572-0241.1998.291_u.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE We sought to reevaluate the prevalence of thyroid dysfunction and thyroid autoimmunity in 47 patients with celiac disease; 91 healthy subjects were studied as controls. Both patients and controls were from Sardinia, Italy. METHODS Diagnosis of celiac disease was made on the basis of clinical history, presence of positive antigliadin IgA (AGA-A) and IgG (AGA-G) antibodies, antireticulin antibodies (ARA), antiendomysium antibodies (EMA), and was confirmed by jejunal biopsy. HLA class II typing for DQB1 and DQA1 alleles was performed in 36/47 celiac patients. Thyroid was evaluated by palpation and echography; serum free thyroid hormones (FT4, FT3), thyrotropic hormone (TSH), and antithyroid peroxidase autoantibodies (anti-TPO) were assayed by radioimmunoassays. RESULTS The prevalence of anti-TPO was higher in celiac patients (29.7%) than in healthy controls (9.6%) (p < 0.001) and thyroid echography frequently displayed (42.5%) a hypoechogenic pattern. Five anti-TPO-positive celiac patients were hypothyroid (two overt, three subclinical). A higher but not significantly different prevalence of anti-TPO (3/7 = 42.8%) was found in celiac patients displaying the DQB1*0502 genotype, when compared with the remaining patients (8/29 = 27.6%). CONCLUSIONS An elevated prevalence of clinical and subclinical autoimmune thyroid autoimmunity was found in Sardinian celiac patients, especially in those displaying the DQB1*0502 genotype; this finding could be related to a particular genetic background of the Sardinian population.
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Affiliation(s)
- F Velluzzi
- Department of Endocrinology, Institute of Internal Medicine, University of Cagliari, Italy
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Bacigalupo A, Broccia G, Corda G, Arcese W, Carotenuto M, Gallamini A, Locatelli F, Mori PG, Saracco P, Todeschini G. Antilymphocyte globulin, cyclosporin, and granulocyte colony-stimulating factor in patients with acquired severe aplastic anemia (SAA): a pilot study of the EBMT SAA Working Party. Blood 1995; 85:1348-53. [PMID: 7532040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Patients with severe aplastic anemia (SAA) and a neutrophil (PMN) count of less than 0.5 x 10(9)/L are exposed to a high risk of early mortality when treated with antilymphocyte globulin (ALG) and steroids, with the major problem being infectious complications. The addition of human recombinant granulocyte colony-stimulating factor (rhG-CSF) to ALG may reduce early mortality by improving neutrophil counts in the short term. To test the feasibility of this approach, the SAA Working Party of the European Group for Blood and Marrow Transplantation (EBMT) designed a pilot study that included rhG-CSF (5 micrograms/kg/d, days 1 through 90), horse ALG (HALG; 15 mg/kg/d, days 1 through 5), methylprednisolone (2 mg/kg/d, days 1 through 5, then tapering the dose), and cyclosporin A (CyA; 5 mg/kg/d orally, days 1 through 180). Patients with newly diagnosed acquired SAA (untreated) and with neutrophil counts of < or = 0.5 x 10(9)/L were eligible. Forty consecutive patients entered this study and are evaluable with a minimum follow up of 120 days: the median age was 16 years (range, 2 to 72 years), the interval from diagnosis to treatment was 24 days, and the median PMN count was 0.19 x 10(9)/L. Twenty-one patients had hemorrhages, and 19 were infected at the time of treatment. Overall, treatment was well tolerated: the median maximum PMN count during rhG-CSF administration was 12 x 10(9)/L (range, 0.4 x 10(9)/L to 44 x 10(9)/L). There were three early deaths (8%) due to infection. Four patients (10%) showed no recovery, whereas 33 patients (82%) had trilineage hematologic reconstitution and became transfusion-independent at a median interval of 115 days from treatment. Median follow up for surviving patients is 428 days (range, 122 to 1,005). Actuarial survival is 92%: 86% and 100% for patients with PMN counts less than 0.2 x 10(9)/L or between 0.2 x 10(9)/L and 0.5 x 10(9)/L, respectively. This study suggests that the addition of rhG-CSF to ALG and CyA is well tolerated, is associated with a low risk of mortality, and offers a good chance of hematologic response. This protocol would appear to be an interesting alternative treatment for SAA patients with a low PMN count who lack an HLA-identical sibling.
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Affiliation(s)
- A Bacigalupo
- EBMT Working Party on SAA, Ospedale San Martino, Genova, Italy
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Dianzani I, Boero R, Guarena C, Urbino A, Corda G, Quarello F, Cerutti F. Abnormalities of sodium transport by sodium, potassium-activated adenosine triphosphatase in erythrocytes from obese children. Clin Sci (Lond) 1988; 74:57-61. [PMID: 2827939 DOI: 10.1042/cs0740057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
1. Intracellular Na+ concentration [Na+]i and Na+ extrusion catalysed by sodium potassium-activated adenosine triphosphatase (Na+, K+-pump) were evaluated in erythrocytes from 21 obese children and 20 normal weight- and age-matched controls. 2. Obese children showed a significantly decreased Vmax. for Na+, K+-pump-mediated Na+ efflux (5638 +/- 338 vs 7597 +/- 335 mumol h-1 litre-1 of cells mean +/- SEM, P = 0.01), while [Na+]i (9.3 +/- 0.3 vs 9.1 +/- 0.5 mmol/litre of cells, mean +/- SEM, NS) and Na+ efflux in fresh cells (2380 +/- 153 vs 2533 +/- 180 mumol h-1 litre-1 of cells, mean +/- SEM, NS) were similar in both groups. 3. Mean diastolic blood pressure was significantly higher in obese children than in controls, although both groups were normotensive (73.8 +/- 1.3 vs 66.2 +/- 1.9 mmHg, mean +/- SEM, P = 0.009). 4. Abnormal Na+, K+-pump activity is present in individuals with idiopathic obesity. 5. The possible link between obesity and blood pressure regulation may be mediated through modifications in Na+,K+-pump activity.
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Affiliation(s)
- I Dianzani
- Istituto di Clinica Pediatrica, Università di Torino, Italy
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del Giacco GS, Cengiarotti L, Mantovani G, Murgia M, Broccia G, Corda G, di Tucci A. Quantitative and functional abnormalities of total T lymphocytes in relatives of patients with Hodgkin's disease. Eur J Cancer Clin Oncol 1985; 21:793-801. [PMID: 3876218 DOI: 10.1016/0277-5379(85)90217-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Seven patients, long-term survivors of Hodgkin's disease, and 24 of their relatives (parents, siblings and children), together with normal controls were studied for percentages, absolute counts and mitogen-proliferative responses by means of monoclonal antibodies, E rosette technique and in vitro cultures with PHA, ConA and PWM. The aim of the study was to ascertain whether the impaired cell-mediated immunity of Hodgkin's patients was also present in relatives in order to elucidate the still debated etiology of the defect and of the disease (congenital? environmental? infectious?). The results show that both Hodgkin's patients and their relatives have a significant decrease of total T cells (as T3+, T11+ and E rosette-forming cells) in peripheral blood and a significant impairment of polyclonal responses to all the mitogens employed. The Leu-7+ cells (i.e. a consistent amount of natural killer cells) are significantly increased only in the Hodgkin's patients but not in their relatives. The T cell subpopulations (T4 and T8), B cells and monocytes do not show any difference between the patients, their relatives and normal controls. Our results seem to support, at least in part, the presence of a common defect of T cell lineage both in patients and in their relatives, but its etiology still remains uncertain (genetic? environmental?).
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Abstract
To determine whether calcitonin (CT) might effect maturation of mammalian growth plate cartilage, we administered salmon CT (sCT) to young rats and used the growth plate from the distal metatarsal as our in vivo growth plate model. Growth plate alkaline phosphatase activity and histological examination were assessed after 3 days of sCT treatment. Alkaline phosphatase activity, a marker of hypertrophied chondrocytes, increased 85%, and the zone of maturation enlarged in rats receiving sCT. In addition, sCT treatment was associated with an increased growth plate 35SO4 incorporation 84% above animals receiving buffer alone. We tested whether this might be a direct effect of CT by using an in vitro model, the growth plate from the fetal pig scapula. Organ culture of these cartilages in serum-free medium with and without sCT (1 U/ml) was performed for 3 days. sCT stimulated alkaline phosphatase activity 49% above growth plates incubated in medium alone. Furthermore, sCT treatment increased the number of hypertrophied chondrocytes leading to widening of the zone of maturation. These studies suggest that CT might have a role growing mammals by promoting maturation of growth plate cartilage.
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Abstract
Recent reports that GH has a direct effect on growing cartilage have raised questions as to the role of somatomedins (Sm) in cartilage growth. To test the hypothesis that GH directly stimulates cartilage growth, we added homologous and heterologous GHs to organ cultures of embryonic chick pelvic cartilage. Pelvic rudiments from 9-day-old chick embryos were incubated in serum-free medium for 3 days in medium alone or medium containing chicken GH, turkey GH, bovine GH, human GH, and bovine GH produced by recombinant DNA methodology. None of the GH preparations studied stimulated avian cartilage growth in vitro. However, cartilage wet weight increased in response to sera from normal and growth hormone-treated hypophysectomized rats. In addition, 20 ng/ml purified Sm-C caused a 78% increase in cartilage weight above that of cartilage incubated in medium alone. Insulin also caused an increase in cartilage weight, but in concentrations 50,000-100,000 times that of Sm-C. Our studies demonstrate that homologous and heterologous GH have no effect on growing avian cartilage and support the hypothesis that Sm directly mediate cartilage growth.
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Bianchi G, Manfredonia A, Trudu A, Di Salvo F, Corda G, Giani S, Lepori G. [Early cycloergometric functional evaluation test in patients with a recent myocardial infarct. Medium-term (3 years) prognostic value]. Minerva Cardioangiol 1983; 31:337-44. [PMID: 6633884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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14
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Mascia V, Pasqualucci S, Cirillo R, Zizi P, Corda G, Desogus A, Pagano G, Pellegrini A. [The passage of proinsulin through the isolated rat mesentery]. Boll Soc Ital Biol Sper 1970; 46:180-3. [PMID: 5516264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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15
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Lenti G, Pellegrini A, Pagano G, Zizi P, Corda G, Cirillo R, Mascia V, Pinna E. [The hypoglycemic effect of adipose tissue extract]. Boll Soc Ital Biol Sper 1968; 44:1413-7. [PMID: 5719778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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16
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Aicardi G, Corda G. [On a case of Vrolik's disease]. Minerva Pediatr 1966; 18:2300-7. [PMID: 5998524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Pozzuoli R, Corda G. [Characterization of immunoglobulins in infantile pneumocystosis]. Clin Pediatr (Bologna) 1966; 48:541-54. [PMID: 4172584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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18
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Broccia G, Corda G, Zizi P, Pellegrini A. [Clinico-experimental studies on hemolysis induced in vitro by sodium parachloromercuribenzoate]. G Clin Med 1966; 47:1002-19. [PMID: 5997187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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