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Giordano G, Crabtree RH, Heintz RM, Forster D, Morris DE. Di-μ-Chloro-Bis(η4
-1,5-Cyclooctadiene)-Dirhodium(I). ACTA ACUST UNITED AC 2007. [DOI: 10.1002/9780470132593.ch22] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Giordano G, Crabtree RH, Heintz RM, Forster D, Morris DE. Di-μ-Chloro-Bis(η 4-1,5-Cyclooctadlene) Dirhodium(I). INORGANIC SYNTHESES 2007. [DOI: 10.1002/9780470132500.ch50] [Citation(s) in RCA: 191] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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128
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Giordano G, Farina G, Tambaro R, Licursi M, Piano S, Specchia M, Papini S, Modugno P, Centritto E, Zappacosta B, Storti S. PO-22 Assessment of thrombotic risk in cancer patients: proposal for a scoring system. A monocentric study. Thromb Res 2007. [DOI: 10.1016/s0049-3848(07)70175-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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129
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Choukroun JI, Braccini F, Diss A, Giordano G, Doglioli P, Dohan DM. [Influence of platelet rich fibrin (PRF) on proliferation of human preadipocytes and tympanic keratinocytes: A new opportunity in facial lipostructure (Coleman's technique) and tympanoplasty?]. REVUE DE LARYNGOLOGIE - OTOLOGIE - RHINOLOGIE 2007; 128:27-32. [PMID: 17633661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
AIM To analyze the effects of PRF (a platelet and immune autologous concentrate) on in vitro proliferation of human keratinocytes and preadipocytes, and to determine if these results may offer an opening on new clinical investigations, particularly in the improvement of tympanoplasties and facial lipostructures (Coleman's technique). MATERIALS AND METHODS Human tympanic keratinocytes and preadipocytes are collected and cultured using the explant technique. 4 series of each type of cells are cultivated either in normal condition (control group) or with PRF (test group). The Petri dishes (of culture) are taken out on the 3rd, 7th, 14th and 21st day, for counting. Evolutions of cells' number are analyzed with a variance test. RESULTS The number of cells in culture increases of more than 60% on the 7th day, and of almost 150% right from the 14th day when in presence of PRF. The daily proliferation peak occurs around the 14th day. The two cellular tested types react similarly. CONCLUSION The PRF, considered as a healing biomaterial, could be used in tympanic and facial lipostructures surgeries, in order to improve the therapeutic result. Other applications in microsurgery and in plastic surgery may be possible, but specific clinical studies need to validate such protocols.
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Giordano G, Piano S, Marra R, Iacoviello L, De Stefano V, Leone G, Hohaus S, Donati M, Storti S. PO-104 Non Hodgkin lymphoma (NHL) and deep venous thrombosis: a dangerous liaison still unexplored. Thromb Res 2007. [DOI: 10.1016/s0049-3848(07)70257-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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131
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Giordano G, D'Adda T, Gnetti L, Froio E, Merisio C, Melpignano M. Detection of human papillomavirus in organs of upper genital tract in women with cervical cancer. Int J Gynecol Cancer 2006; 16:1601-7. [PMID: 16884373 DOI: 10.1111/j.1525-1438.2006.00633.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
In this study, we evaluated the presence of human papillomavirus (HPV) DNA in organs of the female upper genital tract, using nine hysterectomy and salpingo-oophorectomy specimens affected by HPV-positive invasive cervical carcinomas, to establish if cervical HPV infection can spread to upper tracts of the female genital system. HPV DNA was evaluated by polymerase chain reaction (PCR) in all cervical carcinomas as well as in all tracts of the genital system. Then, these data were compared with the results obtained from PCR study of five other hysterectomy and salpingo-oophorectomy specimens (control cases). The criteria used for selection of the control cases were informed consent of the patients for research at the time of surgery, absence of neoplasms, absence of any anatomic lesion caused by HPV in cervix, and external genitalia. All selected cases were squamous cervical carcinomas. PCR analysis revealed HPV DNA in all cases of cervical carcinoma. The HPV DNA was detected as weak positivity on PCR analysis in other organs of the genital system. However, the distribution of HPV DNA varied in the various cases and in the different tracts of the same hysterectomy and salpingo-oophorectomy specimen. We believe that the HPV DNA, detected as a weakly positive signal, in the upper genital tract of patients who have a cervical squamous carcinoma could be a reflection of a latent HPV infection, as well as a sign of the existence of micrometastases containing HPV DNA, which cannot be detected by conventional histologic techniques.
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Maugeri N, Giordano G, Petrilli MP, Fraticelli V, de Gaetano G, Cerletti C, Storti S, Donati MB. Inhibition of tissue factor expression by hydroxyurea in polymorphonuclear leukocytes from patients with myeloproliferative disorders: a new effect for an old drug? J Thromb Haemost 2006; 4:2593-8. [PMID: 16959024 DOI: 10.1111/j.1538-7836.2006.02194.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Polymorphonuclear leukocytes (PMN) from healthy subjects can produce and store tissue factor (TF), which is expressed on PMN surface upon in vitro stimulation with P-selectin. RESULTS We report here that platelets and PMN from 12 patients with myeloproliferative disorders (MPD) (six with polycythemia vera, six with essential thrombocythemia) show up regulation of P-selectin and TF, respectively, in the absence of any in vitro challenge. The number of circulating mixed platelet-PMN aggregates was also increased. PMN TF expression as well as mixed platelet-PMN aggregates, but not platelet P-selectin, were significantly reduced in six MPD patients after treatment with hydroxyurea (HU). In vitro studies performed on PMN separated from healthy donors confirmed HU effects (0-1400 microm). HU prevented both P-selectin-induced TF expression and mixed cell aggregate formation. The inhibitory effect of HU was specific for P-selectin-induced PMN activation, as it did not affect formyl-methionyl-leucyl-phenylalanine-induced PMN TF expression. CONCLUSIONS In MPD patients, platelet P-selectin-mediated TF expression on circulating PMN may play a role in thrombus formation and represents a novel target for the antithrombotic activity of HU.
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Zaffagnini S, Giordano G, Kon E, Lo Presti M, Bruni D, Marcheggiani Muccioli GM, Marcacci M. [Arthroscopic cartilage transplantation]. REVUE DE CHIRURGIE ORTHOPEDIQUE ET REPARATRICE DE L'APPAREIL MOTEUR 2006; 92:4S13-7. [PMID: 17245248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
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Giordano G, White CC, McConnachie LA, Fernandez C, Kavanagh TJ, Costa LG. Neurotoxicity of domoic Acid in cerebellar granule neurons in a genetic model of glutathione deficiency. Mol Pharmacol 2006; 70:2116-26. [PMID: 17000861 DOI: 10.1124/mol.106.027748] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
This study investigated the role of cellular antioxidant defense mechanisms in modulating the neurotoxicity of domoic acid (DomA), by using cerebellar granule neurons (CGNs) from mice lacking the modifier subunit of glutamate-cysteine ligase (Gclm). Glutamate-cysteine ligase (Glc) catalyzes the first and rate-limiting step in glutathione (GSH) biosynthesis. CGNs from Gclm (-/-) mice have very low levels of GSH and are 10-fold more sensitive to DomA-induced toxicity than CGNs from Gclm (+/+) mice. GSH ethyl ester decreased, whereas the Gcl inhibitor buthionine sulfoximine increased DomA toxicity. Antagonists of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid/kainate receptors and of N-methyl-D-aspartate (NMDA) receptors blocked DomA toxicity, and NMDA receptors were activated by DomA-induced l-glutamate release. The differential susceptibility of CGNs to DomA toxicity was not due to a differential expression of ionotropic glutamate receptors, as evidenced by similar calcium responses and L-glutamate release in the two genotypes. A calcium chelator and several antioxidants antagonized DomA-induced toxicity. DomA caused a rapid decrease in cellular GSH, which preceded toxicity, and the decrease was primarily due to DomA-induced GSH efflux. DomA also caused an increase in oxidative stress as indicated by increases in reactive oxygen species and lipid peroxidation, which was subsequent to GSH efflux. Astrocytes from both genotypes were resistant to DomA toxicity and presented a diminished calcium response to DomA and a lack of DomA-induced L-glutamate release. Because polymorphisms in the GCLM gene in humans are associated with low GSH levels, such individuals, as well as others with genetic conditions or environmental exposures that lead to GSH deficiency, may be more susceptible to DomA-induced neurotoxicity.
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Vitalone A, Giordano G, Costa L. Evaluation of in vitro neurotoxicity of methyl mercury, PCB153 and PCB126. Toxicol Lett 2006. [DOI: 10.1016/j.toxlet.2006.06.241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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136
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De Marinis L, Fusco A, Bianchi A, Aimaretti G, Ambrosio MR, Scaroni C, Cannavo S, Di Somma C, Mantero F, degli Uberti EC, Giordano G, Ghigo E. Hypopituitarism findings in patients with primary brain tumors 1 year after neurosurgical treatment: preliminary report. J Endocrinol Invest 2006; 29:516-22. [PMID: 16840829 DOI: 10.1007/bf03344141] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Hypopituitarism represents the consequence of many conditions, in both the adult and child population. It may occur after neurosurgical treatment of brain tumors arising near sella turcica. Much more attention has been focused on lesions far from the hypothalamic-pituitary region as possible causes of pituitary impairment, validating the concept of the particular fragility of these structures. The aim of this study was to evaluate pituitary function in particular GH deficiency (GHD) in patients submitted to neurosurgery for benign tumors of the central nervous system (CNS) not involving hypothalamic-pituitary region. We observed 37 patients with benign brain tumors [13 males, 24 females, age: 54.6+/-13.9 yr; body mass index (BMI): 25.1+/-4.0 kg/m2] performing a basic evaluation of the pituitary function and a dynamic test of the GH/IGF-I axis [GHRH (1 microg/kg iv)+arginine (0.5 g/kg iv) test] for 3 and 12 months after the neurosurgical treatment. Some degree of hypopituitarism was shown in 16 patients (43.2%) at the 3-months follow-up. Hypogonadism was present in 4 patients, hypoadrenalism in another 4 and hypothyroidism in 2. Two patients showed mild hyperprolactinemia and no patients had diabetes insipidus. Seven patients (18.9%) were GH deficient (peak GH <16.5 microg/dl). At 12 months retesting, some degree of hypopituitarism was confirmed in 8 patients, hypogonadism in 2 and hypothyroidism in one; no patients showed hypoadrenalism and GHD was present in 5. This data suggests that hypopituitarism of various degree may develop in patients who are submitted to neurosurgery for primary brain tumors, even far from hypothalamic-pituitary region.
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137
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Giordano G, Gnetti L, Ricci R, Merisio C, Melpignano M. Metastatic extragenital neoplasms to the uterus: a clinicopathologic study of four cases. Int J Gynecol Cancer 2006; 16 Suppl 1:433-8. [PMID: 16515640 DOI: 10.1111/j.1525-1438.2006.00235.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to elucidate the clinicopathologic features, the differential diagnostic problems, and the prognostic consequences of patients with metastatic extragenital malignancies to uterus. The patients with metastatic extragenital malignancies to the uterus were evaluated. We considered the metastases in non-genital tract organs at diagnosis of primary neoplasm, the distribution of the metastases in the uterus, and the presence of concomitant metastases in other genital and non-genital tract organs. There were four cases of metastatic extragenital malignancies to the uterus. The breast was the most frequent primary site (two cases: 50%). The other two primary tumors were adenocarcinoma of the cecum and malignant melanoma of the skin. The diagnosis was facilitated by clinical history, revealing the previous primary neoplasm, and by specific immunohistochemical study. Almost all the patients died from disseminated disease. Thus, the prognosis of metastatic extragenital malignancies to the uterus alone or simultaneously to the uterus and other organs of the genital tract is poor. Thus, the metastases to the uterus and to other organs of the genital tract can be considered a preterminal event.
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Baraldi E, Giordano G, Pasquale MF, Carraro S, Mardegan A, Bonetto G, Bastardo C, Zacchello F, Zanconato S. 3-Nitrotyrosine, a marker of nitrosative stress, is increased in breath condensate of allergic asthmatic children. Allergy 2006; 61:90-6. [PMID: 16364162 DOI: 10.1111/j.1398-9995.2006.00996.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Asthmatic patients have high exhaled nitric oxide (NO) levels. NO-mediated inflammatory actions are mainly due to NO conversion into reactive nitrogen species, which can lead to nitrotyrosine formation. The aim of this study was to assess 3-nitrotyrosine (3-NT) levels in exhaled breath condensate (EBC) of asthmatic and healthy children and to investigate whether there is any relationship with exhaled NO (FE(NO)) and lung function. METHODS The study included 20 asthmatic children (10 steroid-naive with intermittent asthma, 10 steroid-treated with unstable persistent asthma) and 18 healthy controls. They underwent FE(NO) measurement, EBC collection and spirometry. 3-NT was measured by a new liquid chromatography-tandem mass spectrometry (LC-MS/MS) method in isotopic dilution. RESULTS The median EBC concentration of 3-NT (expressed as nitrotyrosine/tyrosine ratio x 100) in asthmatic children was fivefold higher than in healthy subjects [0.23% (0.12-0.32) vs 0.04% (0.02-0.06), P < 0.001] with no difference between steroid-naive and unstable steroid-treated asthmatic patients. FE(NO) levels were higher in asthmatic [44.6 ppb (36.0-66.0)] than in healthy children [7.5 ppb (6.0-8.8), P < 0.001]. No correlation was found among 3-NT, FE(NO) and lung function parameters. CONCLUSION Nitrotyrosine is high in EBC of asthmatic children and could be considered as a noninvasive marker of nitrosative events in the airways.
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Giordano G, Gnetti L, Ricci R, Merisio C, Melpignano M. Metastatic extragenital neoplasms to the uterus: a clinicopathologic study of four cases. Int J Gynecol Cancer 2006. [DOI: 10.1136/ijgc-00009577-200602001-00081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The aim of this study was to elucidate the clinicopathologic features, the differential diagnostic problems, and the prognostic consequences of patients with metastatic extragenital malignancies to uterus. The patients with metastatic extragenital malignancies to the uterus were evaluated. We considered the metastases in non–genital tract organs at diagnosis of primary neoplasm, the distribution of the metastases in the uterus, and the presence of concomitant metastases in other genital and non–genital tract organs. There were four cases of metastatic extragenital malignancies to the uterus. The breast was the most frequent primary site (two cases: 50%). The other two primary tumors were adenocarcinoma of the cecum and malignant melanoma of the skin. The diagnosis was facilitated by clinical history, revealing the previous primary neoplasm, and by specific immunohistochemical study. Almost all the patients died from disseminated disease. Thus, the prognosis of metastatic extragenital malignancies to the uterus alone or simultaneously to the uterus and other organs of the genital tract is poor. Thus, the metastases to the uterus and to other organs of the genital tract can be considered a preterminal event.
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Laffosse JM, Chiron P, Tricoire JL, Giordano G, Bensafi H, Jones D, Puget J. [Not Available]. REVUE DE CHIRURGIE ORTHOPEDIQUE ET REPARATRICE DE L'APPAREIL MOTEUR 2005; 91:76. [PMID: 16609603 DOI: 10.1016/s0035-1040(05)84558-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
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141
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Aimaretti G, Ambrosio MR, Di Somma C, Gasperi M, Cannavò S, Scaroni C, De Marinis L, Baldelli R, Bona G, Giordano G, Ghigo E. Hypopituitarism induced by traumatic brain injury in the transition phase. J Endocrinol Invest 2005; 28:984-9. [PMID: 16483176 DOI: 10.1007/bf03345336] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Traumatic brain injury (TBI) has been associated with hypopituitarism in general and GH deficiency (GHD) in particular; the consequences of this on growth and development are likely to be critical in children and adolescents in the so-called "transition phase". In order to verify the consequences of TBI on pituitary function in the transition phase, we studied a population of adolescents and young adults 3 and 12 months after brain injury [no. = 23, 9 females, 14 males; age: 16-25 yr; body mass index (BMI): 21.9 +/- 0.6 kg/m2]. At 3 months, hypopituitarism was present in 34.6%. Total, multiple and isolated deficits were present in 8.6, 4.3 and 21.7%, respectively. Diabetes insipidus (DI) was present in 8.6% patients and mild hyperprolactinemia in 4.3%. At 12 months, hypopituitarism was present in 30.3%. Total, multiple and isolated deficits were present in 8.6, 4.3 and 17.4%, respectively. DI was present in 4.3% of patients and mild hyperprolactinemia in 4.3%. Total hypopituitarism was always confirmed at retesting. Multiple and isolated hypopituitarism were confirmed in 0/1 and 2/5, respectively. Two/23 patients showed isolated hypopituitarism at 12 months only; 1 patient with isolated at 3 months showed multiple hypopituitarism at retesting. GHD and secondary hypogonadism were the most common acquired pituitary deficits. These results show the high risk of TBI-induced hypopituitarism also in the transition age. Thus it is recommended that pediatric endocrinologists follow-up pituitary function of children and adolescents after brain injuries.
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Valenti S, Guido R, Fazzuoli L, Barreca A, Giusti M, Giordano G. Decreased steroidogenesis and cAMP production in vitro by leydig cells isolated from rats made hypothyroid during adulthood. ACTA ACUST UNITED AC 2005; 20:279-86. [PMID: 16130272 DOI: 10.1046/j.1365-2605.1997.00071.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
UNLABELLED The Leydig cell function of adult male rats made hypothyroid with 6-propyl-2-thiouracil (6-PT, 0.1% w/v in drinking water for 1 month) was studied and compared with that of age-matched controls. After 6-PT treatment, a slight, non-significant decrease in serum testosterone was observed, but no changes in testis weight or number of Leydig cells were noted. The in vitro function of Leydig cells was therefore investigated during incubation for 3 h in the presence or absence of several stimuli: LH (30 mIU/mL), forskolin (FK 1 microM), isobutylmethylxanthine (IBMX, 100 microM), GnRH (100 nM) or FK 1 microM + IBMX 100 microM. Irrespective of the stimulus, cells from hypothyroid rats secreted less cyclic AMP, 17-hydroxyprogesterone, androstenedione and testosterone. No differences in LH receptors were noted between the groups. Prolonged incubation with triiodothyronine (5-250 ng/mL) or thyroxine (5-250 ng/mL) for 3, 16, 24 or 48 h did not affect testosterone secretion in either group; however, administration of IGF-I (8 ng/mL for 24 h) resulted in increased spontaneous and stimulated testosterone production in both groups. However, when hypothyroid animals were supplemented in vivo with thyroxine a full recovery of Leydig cell function in vitro was noted. IN CONCLUSION (1) Leydig cells from rats made hypothyroid during adulthood produce less testosterone in vitro, both spontaneously and in response to cAMP and non-cAMP-mediated stimuli; (2) this is due to a reduction in cAMP production and in the activity of the enzymes in the androgen biosynthetic pathway, and not to changes in LH receptors; (3) direct administration of thyroid hormones did not improve testosterone secretion in either group, while incubation with IGF-I did.
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De Biase A, Guerra F, Giordano G, Salucci S, Solidani M. Surgical removal of a left lower third molar root after iatrogenic displacement in soft tissue. Case report. MINERVA STOMATOLOGICA 2005; 54:389-93. [PMID: 16175168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Displacement of a tooth or a portion of it is an unusual but very serious event for the severe consequences it could have. Already Hill and Howe in the half of the past century understood and described the risks associated to this accident particularly frequent during impacted third lower molars avulsion. Displacements can be idiopathic or iatrogenic and the sites of displacements depend on the anatomy of the tooth and the surrounding region. After a complete review of the literature, the authors describe the surgical removal of a left lower third molar root displaced in the soft tissue after a first extraction of the entire tooth. The necessary precautions to limit the frequency of this accident are then discussed.
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Zendri E, Venturi C, Ricci R, Giordano G, De Panfilis G. Primary cutaneous plasmacytoma: a role for a triggering stimulus? Clin Exp Dermatol 2005; 30:229-31. [PMID: 15807675 DOI: 10.1111/j.1365-2230.2004.01692.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Primary cutaneous plasmacytoma is a rare type of cutaneous B-cell lymphoma, characterized by clonal proliferation of plasma cells, that primarily develops in the skin. Five cases have been described to date in which a local triggering stimulus may be involved in development of this skin tumour. We describe the case of a primary cutaneous plasmacytoma localized to the lower lip. This site had been affected for 15 years with recurrent herpes simplex virus-1 infection. Neoplastic plasma cells were found to be bcl-2-positive. We hypothesize that chronic stimulation of keratinocytes by herpes simplex virus-1, possibly through toll-like receptors, may have favoured the release of cytokines (e.g. interleukin-6) able to induce plasma cell proliferation, transformation and survival.
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De Biase A, Guerra F, Salucci S, Giordano G, Lamazza L. Primary and exclusive gingival localization of non-Hodgkin lymphomas. Case report. MINERVA STOMATOLOGICA 2005; 54:63-68. [PMID: 15902064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A case of primary and exclusive gingival localization of a non-Hodgkin lymphoma (NHL) personally observed at the Surgical Out-patients Unit of the Department of Dentistry at the Umberto I Hospital in Rome, is described. A 71 year-old caucasian male was referred by his private dentist because of a severe pain at the soft tissue of the mandible even after dental, neurologic and parodontal treatments. At clinical examination, a severe gingival swelling in the symphysis region with hard bleeding, palpable lymph nodes and no important evidence in radiographic and CT examinations were found. After incisional biopsy and its examination, a diagnosis of NHL was made. Further examinations did not show metastasis dissemination. The patient was referred to the Hematology Department and after 4 chemotherapy cycles over 12 months, he completely recovered. After an introduction on NHL, the clinical case is described as well as how to make a correct diagnosis; moreover, the importance of the dentist in identifying diseases even not strictly related to oral cavity but whose signs and manifestations appear over there, is stressed.
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Macario A, Katovic A, Giordano G, Forni L, Carloni F, Filippini A, Setti L. Immobilization of Lipase on microporous and mesoporous materials: studies of the support surfaces. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0167-2991(05)80166-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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147
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Giordano G. Causes of sudden infant death syndrome from post-mortem examination. J Matern Fetal Neonatal Med 2004; 16 Suppl 2:41-2. [PMID: 15590434 DOI: 10.1080/14767050410001727189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Sudden infant death syndrome (SIDS) was first defined in the USA as: 'The sudden death of an infant under one year of age which remains unexplained after a thorough case investigation, including performance of a complete autopsy, examination of the death scene, and review of the clinical history'. More recently, diverse studies have shown that some cases of SIDS can be explained, when an accurate post-mortem examination is performed. The primary objective of the present paper was to delineate possible causes of SIDS as derived from a review of autoptic studies reported in the literature.
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Parmigiani S, Giordano G, Fellegara G, Brevi B, Magnani C. A rare case of multiple congenital epulis. J Matern Fetal Neonatal Med 2004; 16 Suppl 2:55-8. [PMID: 15590438 DOI: 10.1080/14767050410001727224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We report a case in a female newborn infant of multiple congenital epulis, i.e. granular cell tumor, that was undetected during regular pregnancy ultrasound monitoring. At birth the neoplasms appeared as two voluminous lesions protruding from the newborn's mouth. The greater of them (5.5 cm x4 cm x3 cm) was pedunculated and attached to the external superior gingiva, shifting the alae nasi and making it difficult to enter the coanae. The second mass was somewhat smaller (3 cm x4 cm x2.5 cm), pedunculated and attached to the external inferior gum. A third smaller mass was less evident, unpedunculated and attached to the rim of the lower gingiva. Histologically the lesions were characterized by large cells, which had abundant pale acidophilic granular cytoplasm. A round-oval nucleus was located centrally. The cell membranes were distinct. Neither mitosis nor necrosis was found. Staining for cytoplasmic granules was intensely periodic acid-Schiff (PAS) positive and diastase resistant. Immunohistochemical negativity for S100 protein, positivity for lysozyme and numerous phagolysosomes in the cytoplasm of neoplastic elements, observed on ultrastructural examination, supported the hypothesis that the congenital type of granular cell tumor cannot have a Schwannian origin like that of the adult type, but is probably a mesenchymal lesion which, for unknown cause, regresses by a degenerative process.
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Giordano G. Causes of sudden infant death syndrome from post-mortem examination. J Matern Fetal Neonatal Med 2004. [DOI: 10.1080/jmf.16.2.41.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Centi G, Genovese C, Giordano G, Katovic A, Perathoner S. Performance of Fe-BEA catalysts for the selective hydroxylation of benzene with N2O. Catal Today 2004. [DOI: 10.1016/j.cattod.2004.03.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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