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Mazza P, Palazzo G, Minoia C, Amurri B, Pisapia G. Autologous and allogeneic stem cell transplant in Jehovah’s Witnesses: a single-center experience on 22 patients. Bone Marrow Transplant 2016; 51:1002-3. [DOI: 10.1038/bmt.2016.29] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Giorgio G, Colafemmina G, Mavelli F, Murgia S, Palazzo G. The impact of alkanes on the structure of Triton X100 micelles. RSC Adv 2016. [DOI: 10.1039/c5ra21691e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Here we investigate the structural evolution of TX100 micelles upon loading with several linear and cyclic alkanes by DLS, PGSE-NMR, 2D NOESY NMR, viscosity measurements, and molecular dynamic simulations.
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Minoia C, Pisapia G, Palazzo G, Ingrosso C, Buonanno M, Spinosa C, Prudenzano A, Pricolo G, Mazza P. Impact of novel agents followed by autologous hematopoietic stem cell transplantation for multiple myeloma patients aged 65 years or older: a retrospective single Institutional analysis. Bone Marrow Transplant 2015; 50:1486. [PMID: 26281030 DOI: 10.1038/bmt.2015.185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mele G, Melpignano A, Quarta G, Palumbo G, Capalbo S, Falcone A, Cascavilla N, Palazzo G, Mazza P, Iannitto E, Curci P, Rizzi R, Specchia G, Rossini B, Pavone V, Ria R, Vacca A, Buquicchio C, Tarantini G, Minoia C, Guarini A, Ditonno P, Polimeno G, Reddiconto G, Di Renzo N. “Real world” outcome of lenalidomide plus dexamethasone in the setting of recurrent and refractory multiple myeloma: Extended follow-up of a retrospective multicenter study by the “rete ematologica pugliese”. Leuk Res 2015; 39:279-83. [DOI: 10.1016/j.leukres.2014.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 12/01/2014] [Accepted: 12/14/2014] [Indexed: 11/29/2022]
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Perna G, Lasalvia M, D’Antonio P, Mallardi A, Palazzo G, Fiocco D, Gallone A, Cicero R, Capozzi V. Morphology of synthetic DOPA-eumelanin deposited on glass and mica substrates: An atomic force microscopy investigation. Micron 2014; 64:28-33. [DOI: 10.1016/j.micron.2014.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/25/2014] [Accepted: 03/30/2014] [Indexed: 11/27/2022]
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Fiorelli E, Lanti A, Ferraro A, Del Proposto G, Basso L, Chiru O, De Masi A, Antonelli M, Palazzo G, Massarelli R, Insalaco D, Ippolito M, Pattofatto F, Agostini F, Adorno G. Automated cell processing device to eliminate DMSO: experience of Policlinico Tor Vergata. Transfus Apher Sci 2014. [DOI: 10.1016/s1473-0502(14)50043-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ronci C, Ferraro A, Lanti A, Papa A, Cipriani C, Insalaco D, Marconi G, Chiru O, Pattofatto F, Basso L, Palazzo G, Del Proposto G, Ippolito M, Sinopoli S, Adorno G. Platelet-rich plasma as treatment for persistent ocular epithelial defect. Transfus Apher Sci 2014. [DOI: 10.1016/s1473-0502(14)50046-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Argenziano G, Moscarella E, Annetta A, Battarra VC, Brunetti B, Buligan C, Cantisani C, Capizzi R, Carbone A, Carlino A, Corsetti V, Damiano A, De Salvo V, De Simone P, Di Caterino P, Fargnoli MC, Ferrari A, Fossati B, Frascione P, Ghigliotti G, González Inchaurraga MA, Guerriero C, Landi C, Mazzoni L, Mirizzi S, Palazzo G, Pedretti A, Peris K, Piemonte P, Rossi A, Satta R, Savoia F, Scalvenzi M, Stanganelli I, Stinco G, Zampieri P, Zalaudek I. Melanoma detection in Italian pigmented lesion clinics. GIORN ITAL DERMAT V 2014; 149:161-166. [PMID: 24819635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM Accuracy in melanoma detection is important to recognize early curable melanomas and to minimize the unnecessary excision of benign lesions. The aim of this paper was to evaluate melanoma screening accuracy of Italian pigmented lesion clinics in terms of number needed to excise (NNE), melanoma thickness, and number of melanomas diagnosed during patient follow-up. METHODS Information on all skin tumors excised in 2011 were extracted from the databases of the participating centers. Information whether the lesion was excised at the baseline examination or during patient follow-up was recorded, as well as the overall number of patients examined in each center in 2011. RESULTS After e-mail solicitation, 22 of 40 centers agreed to participate. A total of 8229 excised lesions were collected. The overall number of examined patients was 86.564, thus 9.5% of screened patients had a lesion removed. Of the excised lesions, 866 were diagnosed as melanoma (1% of examined patients) and 5311 (88.9%) were melanocytic nevi. Three NNE were calculated giving values of 7.9 excised lesions to find 1 melanoma, 7.1 melanocytic lesions to find 1 melanoma, and 3.7 lesions to find 1 skin malignancy. The median melanoma thickness was 0.6 mm, with only 15.1% of melanomas ≥ 1 mm of thickness. Melanomas detected over time were 96 (11.1%; mean thickness, 0.3 mm), with 15.6% of lesions excised after short-term follow-up and 84.4% after long-term follow-up. CONCLUSION The NNE values comparable to those achieved in specialized clinical settings and the high number of early melanomas diagnosed at the baseline examination or during patient follow-up indicate a high level of accuracy in melanoma screening achieved by Italian pigmented lesion clinics.
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MESH Headings
- Adolescent
- Adult
- Aged
- Ambulatory Care Facilities/statistics & numerical data
- Carcinoma, Basal Cell/diagnosis
- Carcinoma, Basal Cell/epidemiology
- Carcinoma, Basal Cell/surgery
- Carcinoma, Squamous Cell/diagnosis
- Carcinoma, Squamous Cell/epidemiology
- Carcinoma, Squamous Cell/surgery
- Dermatology/organization & administration
- Dermoscopy
- Early Detection of Cancer
- Female
- Follow-Up Studies
- Humans
- Italy/epidemiology
- Keratosis, Seborrheic/diagnosis
- Keratosis, Seborrheic/epidemiology
- Keratosis, Seborrheic/surgery
- Male
- Melanoma/diagnosis
- Melanoma/epidemiology
- Melanoma/pathology
- Melanoma/surgery
- Middle Aged
- Neoplasm Grading
- Nevus, Pigmented/diagnosis
- Nevus, Pigmented/epidemiology
- Nevus, Pigmented/pathology
- Nevus, Pigmented/surgery
- Skin Neoplasms/diagnosis
- Skin Neoplasms/epidemiology
- Skin Neoplasms/pathology
- Skin Neoplasms/surgery
- Young Adult
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Loreto C, Galanti C, Leonardi R, Musumeci G, Pannone G, Palazzo G, Rusu MC. Possible role of apoptosis in the pathogenesis and clinical evolution of radicular cyst: an immunohistochemical study. Int Endod J 2013; 46:642-8. [DOI: 10.1111/iej.12040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Accepted: 11/15/2012] [Indexed: 12/31/2022]
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Sicurezza E, Palazzo G, Leonardi R. Three-dimensional computerized tomographic orbital volume and aperture width evaluation: a study in patients treated with rapid maxillary expansion. ACTA ACUST UNITED AC 2011; 111:503-7. [PMID: 21420642 DOI: 10.1016/j.tripleo.2010.11.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 11/14/2010] [Accepted: 11/22/2010] [Indexed: 10/18/2022]
Abstract
OBJECTIVE The purpose of this study was to assess the influence of rapid maxillary expansion (RME) on orbital volume and aperture width measurements by using freeware software with DICOM data from low-dose-protocol multidetector computerized tomography (MDCT). STUDY DESIGN The subjects consisted of 30 patients (12 male, 18 females) treated with a Hyrax Palatal Expander, activated 3 times per day (0.25 mm per turn of the screw) for an average of 18 days. Low-dose MDCT was performed immediately before (T1) and after (T2) treatment. DICOM data was exported into the open-source OsiriX Medical Imaging software (www.osirix-viewer.com), the data reoriented to a standard projection, and then orbital volumetric and maximum aperture measurements performed. RESULTS Orbital mean volumes increased significantly from 18.81 ± 1.23 cm(3) (T1) to 19.53 ± 1.26 cm(3) (T2). Orbital aperture width also increased significantly from 36.02 ± 1.24 mm (T1) to 37.11 ± 1.01 mm (T1). CONCLUSIONS RME produces small but significant increases in orbital dimensions. However, RME does not produce drastic changes of the normal architecture of the orbital bones and is unlikely to alter the normal anatomy of the face.
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Leonardi R, Santarelli A, Barbato E, Ciavarella D, Bolouri S, Härle F, Palazzo G, Lo Muzio L. Atlanto-occipital ligament calcification: a novel sign in nevoid basal cell carcinoma syndrome. Anticancer Res 2010; 30:4265-4267. [PMID: 21036751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
BACKGROUND The nevoid basal cell carcinoma syndrome (NBCCS), first described by Gorlin and Goltz in 1960, is a hereditary autosomal dominant disease with high penetrance and variable expressivity. Almost 70% of patients with NBCCS have some degree of craniofacial anomaly. Among these, the presence of ectopic calcification have been reported but Atlanto-occipital ligament calcification has never been described. Therefore this investigation was carried out to determine the prevalence of atlanto-occipital ligament calcification on lateral x-ray of NBCCS patients aiming to assess the effectiveness of this sign in NBCCS diagnosis. PATIENTS AND METHODS Lateral and frontal cephalometric radiographs of 18 patients (11 males and 7 females), aged 8-61 years, with the diagnosis of NBCCS were evaluated for the presence of intracranial calcifications (diaphragma sellae and falx cerebri) and or calcification of the atlanto-occipital ligament. RESULTS A total of 11 patients presented calcification of atlanto-occipital ligament to various degrees and in three cases this represented the only sign of ectopic calcification. When compared to the other two sites of ossification, atlanto-occipital ligament calcification had a similar prevalence. CONCLUSION The calcification of the atlanto-occipital ligament should be considered in addition to the other major criteria for NBCCS diagnosis.
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Angelico R, Rossi CO, Ambrosone L, Palazzo G, Mortensen K, Olsson U. Ordering fluctuations in a shear-banding wormlike micellar system. Phys Chem Chem Phys 2010; 12:8856-62. [DOI: 10.1039/b926152d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Palazzo G, Mena S. [Can tobacco companies be good corporate citizens?]. REVUE MEDICALE SUISSE 2009; 5:1454-1456. [PMID: 19634530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Tobacco companies have jumped on the Corporate social responsibility (CSR) bandwagon as a tentative to be societally accepted as responsible actors and good corporate citizens. This is however not possible for two reasons. First, the product they sell is lethal and thus not compatible with the precondition of doing no harm to be a good corporate citizen. Second, the behavior of tobacco firms is not responsible, being illustrated by four examples: junk science versus sound science strategy, seducing young smokers, political lobbying and getting customers on new markets. To conclude, three implications for regulating the activities of the tobacco industry are given.
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Pedullà E, Meli GA, Garufi A, Cascone P, Mandalà ML, Deodato L, Palazzo G. Morphometric evaluation of the temporomandibular joint and the masticatory spaces: the role of high-definition MRI. MINERVA STOMATOLOGICA 2009; 58:127-143. [PMID: 19369919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
AIM The aim of this work was to describe the anatomy of the temporomandibular joint (TMJ), the masticator spaces and their possible variance by means of magnetic resonance imaging MRI. METHODS We evaluated one TMJ in each of 28 volunteers (14 males and 14 females) without temporomandibular disorders. The TMJ with mouth closed was evaluated on axial, coronal and sagittal planes obtained with a 1.5 Tesla magnetic resonance scanner. MRI scans of the anatomic patterns of the temporomandibular region were analyzed and compared with the classical anatomy notions reported in the literature. Morphometric evaluation of the temporomandibular region and the medial and lateral pterygoid muscles was carried out. RESULTS MRI anatomy of the TMJ, the masticator spaces and their possible variance were accurately described. In addition, morphometric evaluation of the TMJ and the masticator spaces was performed. Statistical analysis of the measurements showed that the length of the structures related to the glenoid fossa were usually longer in the female than in the males, whereas the condyle and masticator muscles were usually greater in the males than in the females. T-tests showed no significant differences (P > 0.05) between the measurements of the right and left TMJ. CONCLUSIONS In preoperative maxillofacial surgery assessment, MRI is a useful tool to reduce operating time, avert surgical complications and improve patient outcome.
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Abballe F, Lombardi M, Maccone I, Palazzo G, Severoni A, Travaini S, Venturini A. New method for low molecular weight heparin quantification in tablets by suppressed conductivity detection and cryptand column. J Pharm Biomed Anal 2008; 48:467-71. [DOI: 10.1016/j.jpba.2008.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 04/05/2008] [Accepted: 04/07/2008] [Indexed: 10/22/2022]
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Alberti G, D'Agostino G, Palazzo G, Biesuz R, Pesavento M. Aluminium speciation in natural water by sorption on a complexing resin. J Inorg Biochem 2005; 99:1779-87. [PMID: 16055193 DOI: 10.1016/j.jinorgbio.2005.06.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2005] [Revised: 06/14/2005] [Accepted: 06/16/2005] [Indexed: 11/16/2022]
Abstract
Very stable aluminium complexes may be present in natural waters, which can be detected only using appropriate methods. One of them is the resin titration based on the sorption of aluminium on a strongly sorbing resin, Chelex 100. It was here used to detect strong aluminium complexes, and to characterize them by determining their concentration, and the corresponding stability constant. High and low salinity waters were sampled in different sites in the North of Italy. In all the samples aluminium complexes with high stability constant, up to 10(17.4) M(-1) in the less acidic solution, were detected. The stability constant depends mainly on the solution acidity, increasing with increasing pH up to 7. The concentration of the ligands responsible for the strong complexation is similar to that of aluminium (from 0.5 to 1.5 microM), or somewhat lower in the case of estuarine and sea waters. A small fraction of aluminium (from 0% to 2%) in freshwaters, higher in estuarine and sea waters (14% and 10%, respectively), is present in weakly bound forms which could also be the hydrolysis products. The conditional constants of the strong complexes were determined for the different samples examined. They were found to be slightly lower in the case of the high salinity waters, in which a value of 10(16.1) M(-1) at pH 7.5 was obtained. This is probably due to the higher ionic strength in marine water, which strongly influences the complexation of trivalent metal ions, as seen for example also in the hydrolysis. It could be deduced that similar substances, but at different concentration, would be responsible for the aluminium complexation in the sea and freshwaters here examined. They could be natural organics like fulvic substances, or better some particular complexing sites in this substances with very high affinity for aluminium.
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Angelico R, Burgemeister D, Ceglie A, Olsson U, Palazzo G, Schmidt C. Deuterium NMR Study of Slow Relaxation Dynamics in a Polymer-like Micelles System after Flow-Induced Orientation. J Phys Chem B 2003. [DOI: 10.1021/jp0356259] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mazza P, Prudenzano A, Amurri B, Palazzo G, Pisapia G, Stani L, Pricolo G. Myeloablative therapy and bone marrow transplantation in Jehovah's Witnesses with malignancies: single center experience. Bone Marrow Transplant 2003; 32:433-6. [PMID: 12900781 DOI: 10.1038/sj.bmt.1704179] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hematological malignancies in Jehovah's Witnesses are often difficult to cure since these patients deny transfusions. By a retrospective analysis, we report the possibility of treating some tumors, mostly hematological, with either autologous or allogeneic bone marrow transplantation (BMT) without blood support. Eight patients were evaluated, including lymphoma (two patients), acute lymphoblastic (one patient) and myeloblastic (one patient) leukemia, chronic lymphocytic leukemia (one patient), refractory anemia with blasts in transformation (one patient), chronic myeloid leukemia (one patient) and metastatic breast cancer (one patient). All patients experienced a severe cytopenia with no major side effects or life-threatening complications. We had four deaths: three from relapse and progression of the disease (at 5, 8 and 15 months after the stem cell infusion), and one from acute intestinal GVHD (at 2 months after the stem cell infusion). Four patients are in complete clinical remission (at 8, 10, 16 and 26 months after the stem cell infusion), and this was related to the disease outcome. We conclude that autologous and allogeneic BMT are feasible without the support of transfusions. We believe that this should be performed as soon as possible in the course of the disease.
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Cigliano B, De Franciscis A, Palazzo G, Pisanti A, Rufolo L, Di Martino L. [Bilobectomy in a brazilian infant suffering from extensive monolateral pulmonary TBC]. LE INFEZIONI IN MEDICINA 2003; 7:125-128. [PMID: 12759593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
As there has recently been a significant increase in childhood tuberculosis, we considered an important contribution the clinical case of an infant from Brazil, who underwent right bilobectomy to treat a previously poorly cured enlarged pulmonary tubercular infiltrate.
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Angelico R, Olsson U, Mortensen K, Ambrosone L, Palazzo G, Ceglie A. Relaxation of Shear-Aligned Wormlike Micelles. J Phys Chem B 2002. [DOI: 10.1021/jp013934y] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mazza P, Palazzo G, Amurri B, Pricolo G, Prudenzano A, Stani L. Rituximab with peripheral blood stem cell transplantation in CD20 lymphoproliferative disorders. Haematologica 2001; 86:1104-5. [PMID: 11602420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
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Palazzo G. [Morphofunctional aspects of the stomatognathic apparatus in the totally edentulous patient. Prosthetic rehabilitation]. MINERVA STOMATOLOGICA 2001; 50:165-71. [PMID: 11420568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
The authors examined the morphofunctional aspects of the various structures of the stomatognathic apparatus in the totally edentulous patient with the aim of carrying out and incorporating full prosthetic restoration. The following aspects are evaluated: 1) the reactive behaviour or resilience of the fibromucous support in the various areas under the functional load and its functional conditioning; 2) the vertical and horizontal intermaxillary ratios. Its modifications in an edentulous subject; 3) the evaluation and optimisation of the verticentre, namely the correct stable functional centre reference; 4) the regulation of muscle strength in relation to the length of contraction of muscle fibre; 5) type 3 lever mechanism in mandibular function and the creation of a balance distribution of occlusal forces in the centre. A suitable functional occlusive scheme in the total prosthesis achieves a correct adjustment of muscle contraddiction and a balanced distribution of load forces on the supporting tissues and on the temporomandibular joints. It constitutes a functional centre reference which centralises and stabilises the jaw and the prosthesis. In addition to correct technical installation, this also depends on a detailed preliminary diagnostic evaluation of the anatomofunctional conditions of all the structures in the stomatognathic apparatus of the subject to be treated.
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Mazza P, Palazzo G, Amurri B, Cervellera M, Rizzo C, Maggi A. Acute leukemia in Jehovah's Witnesses: a challenge for hematologists. Haematologica 2000; 85:1221-2. [PMID: 11064477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
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Palazzo G, Mallardi A, Giustini M, Berti D, Venturoli G. Cumulant analysis of charge recombination kinetics in bacterial reaction centers reconstituted into lipid vesicles. Biophys J 2000; 79:1171-9. [PMID: 10968981 PMCID: PMC1301013 DOI: 10.1016/s0006-3495(00)76371-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
The kinetics of charge recombination between the primary photoxidized donor (P(+)) and the secondary reduced quinone acceptor (Q(B)(-)) have been studied in reaction centers (RCs) from the purple photosynthetic bacterium Rhodobacter sphaeroides incorporated into lecithin vesicles containing large ubiquinone pools over the temperature range 275 K </= T </= 307 K. To account for the non-exponential kinetics of P(+) re-reduction observed following a flash, a new approach has been developed, based on the following assumptions: 1) the exchange of quinone between different vesicles is negligible; 2) the exchange of quinone between the Q(B) site of the RC and the quinone pool within each single vesicle is faster than the return of the electron from the primary reduced acceptor Q(A)(-) to P(+); 3) the size polydispersity of proteoliposomes and the distribution of quinone molecules among them result in a quinone concentration distribution function, P(Q). The first and second moments of P(Q) have been evaluated from the size distribution of proteoliposomes probed by quasi-elastic light scattering (mean radius, <R> = (50 +/- 15) nm). Following these premises, we describe the kinetics of P(+)Q(B)(-) recombination with a truncated cumulant expansion and relate it to P(Q) and to the free energy changes for Q(A)(-)Q(B) --> Q(A)Q(B)(-) electron transfer (DeltaG(AB)(o)) and for quinone binding (DeltaG(bind)(o)) at Q(B). The model accounts well for the temperature and quinone dependence of the charge recombination kinetics, yielding DeltaG(AB)(o) = -7.67 +/- 0.05 kJ mol(-1) and DeltaG(bind)(o) = -14.6 +/- 0.6 kJ mol(-1) at 298 K.
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Mazza P, Amurri B, Palazzo G, Prudenzano A, Pricolo G, Stani L. Fludarabine containing regimen followed by autologous peripheral blood stem cell transplantation in unselected patients with acute myeloid leukemia: a single center experience. Haematologica 2000; 85:222-4. [PMID: 10681741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
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