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Abstract
Ilex paraguariensis (common name: 'mate' or 'yerba mate') is used for the preparation of the most popular tea-like beverage of South America. Choleretic, hypocholesteremic, antioxidant, hepatoprotective and bitter taste properties of mate are attributed to the phenolic constituents of the leaves. I. paraguariensis has seven local congeneric substitutes or adulterants: I. brevicuspis; I. theezans; I. microdonta; I. dumosa var. dumosa; I. taubertiana; I. pseudobuxus; I. integerrima; and I. argentina. An HPLC method using UV with Photodiode Array Detector was developed for the identification and quantification of caffeoyl derivatives (caffeic acid, chlorogenic acid, 3,4-dicaffeoylquinic acid, 3,5-dicaffeoylquinic acid and 4,5-dicaffeoylquinic acid) and flavonoids (quercetin, rutin and kaempferol) in these species. I. paraguariensis showed a higher content of flavonoids and caffeoyl derivatives than the other assayed species.
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Ruffa MJ, Ferraro G, Wagner ML, Calcagno ML, Campos RH, Cavallaro L. Cytotoxic effect of Argentine medicinal plant extracts on human hepatocellular carcinoma cell line. JOURNAL OF ETHNOPHARMACOLOGY 2002; 79:335-339. [PMID: 11849838 DOI: 10.1016/s0378-8741(01)00400-7] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 05/23/2023]
Abstract
Methanolic extracts from Achyrocline satureioides (Dc.) Lam, Aristolochia macroura Gomez, Lithraea molleoides (Vell.) Engl., Schinus molle L., unlike those from Celtis spinosa Spreng, Chenopodium ambrosioides L., Petiveria alliacea L., and Plantago major L. showed cytotoxic activity against a human hepatocellular carcinoma cell line, Hep G2. Schinus molle L. was the most active (IC50=50+/-7 microg/ml). These results call for further studies of these extracts.
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Clavin M, Gorzalczany S, Macho A, Muñoz E, Ferraro G, Acevedo C, Martino V. Anti-inflammatory activity of flavonoids from Eupatorium arnottianum. JOURNAL OF ETHNOPHARMACOLOGY 2007; 112:585-9. [PMID: 17570627 DOI: 10.1016/j.jep.2007.04.007] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Received: 10/10/2006] [Revised: 04/04/2007] [Accepted: 04/11/2007] [Indexed: 05/15/2023]
Abstract
Three anti-inflammatory compounds: nepetin, jaceosidin and hispidulin have been isolated and identified from Eupatorium arnottianum Griseb. dichloromethane extract. Nepetin reduced the TPA mouse ear edema by 46.9% and jaceosidin by 23.2% (1mg/ear). Both compounds inhibited the NF kappaB induction by 91 and 77%, respectively. Furthermore phytochemical analysis of the ethanol extract has led to the identification of eriodictyol, hyperoside, rutin, caffeic and chlorogenic acids. All these compounds are reported for the first time in this species. The finding of topical antiinflammatory activity exerted by Eupatorium arnottianum extract and the identification of active principles could support the use of this plant for the treatment of inflammatory affections.
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Ferraro G, Meroni PL, Tincani A, Sinico A, Barcellini W, Radice A, Gregorini G, Froldi M, Borghi MO, Balestrieri G. Anti-endothelial cell antibodies in patients with Wegener's granulomatosis and micropolyarteritis. Clin Exp Immunol 1990; 79:47-53. [PMID: 2302834 PMCID: PMC1534732 DOI: 10.1111/j.1365-2249.1990.tb05125.x] [Citation(s) in RCA: 87] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 12/31/2022] Open
Abstract
Anti-endothelial cell antibodies (AECA) have been detected by cell surface radioimmunoassay in nine out of 15 patients with micropolyarteritis (MPA) and in two out of five patients with Wegener's granulomatosis. AECA mostly belonged to the IgG isotype and were present in the active phase of the diseases. These antibodies were not detectable in 10 sera from patients with essential mixed cryoglobulinaemia, suggesting that they were not a mere epiphenomenon consequent to the inflammatory vascular injury. The binding activity was not related to ABH antigens or to HLA class I antigens displayed by resting human endothelial cells in culture and was not influenced by removing immune complexes. Absorption of the anti-neutrophil cytoplasmic antibodies (ANCA), present in MPA and Wegener's granulomatosis sera, did not affect the endothelial binding. AECA-positive sera did not display lytic activity against endothelial cells, neither alone nor after addition of fresh complement or normal human peripheral blood mononuclear cells. Although AECA are not cytolytic for endothelial cell monolayers in vitro, the reactivity against intact endothelial cells suggests their possible involvement in in vivo pathological processes affecting vascular structures in small vessel primary vasculitides.
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Abstract
Previously, we have demonstrated that lateral habenula (LH) modulates the bioelectric activity of the hippocampus through the dorsal raphe nucleus functional involvement. In this study we have, preliminarily, electrophysiologically identified two types of raphe neurons: "slow" (S cells, serotonergic in nature); and "fast" (F cells, presumably GABAergic in nature). Then, we have shown that LH electrical stimulation at lower frequency induced an excitation of S and F neurons. LH stimulation at higher frequency inhibited only S neurons. Furthermore, iontophoretic NMDA excited S and F neurons. The excitatory effects of LH stimulation were antagonized by the iontophoretic 2-APV (NMDA antagonist). Iontophoretic GABA inhibited only S neurons. Iontophoretic bicuculline antagonized the LH-induced inhibition os S neurons. The data suggested a direct (NMDA-mediated) and indirect (through the F GABAergic inhibitory interneuron) influence of the LH on the serotonergic efferent neuron.
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D'Andrea F, Brongo S, Ferraro G, Baroni A. Prevention and treatment of keloids with intralesional verapamil. Dermatology 2002; 204:60-2. [PMID: 11834852 DOI: 10.1159/000051812] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The current treatment of keloids is based on surgery, medical therapy and physical treatment. The optimal treatment remains undefined. OBJECTIVE This clinical study determines the effectiveness of verapamil hydrochloride on the prevention and treatment of keloids. METHODS Two groups of patients with keloids were divided according to lesion site and age. The first group was treated by perilesional surgical excision of keloids and topical silicone, combined with adjuvant treatment of intralesional 2.5 mg/ml verapamil hydrochloride injections administered at timed intervals. The second group served as control, receiving the same treatment except the verapamil hydrochloride. RESULTS A periodical examination to check specific clinical parameters and an 18-month follow-up determined that keloids were cured in 54% of the cases in the first group, compared to 18% in the second group. Moreover, in the remaining 36% of patients in the first group in whom keloids recurred, there was an improvement in size and above all in consistence. CONCLUSION These findings suggest that verapamil hydrochloride is an effective tool for the prevention and therapy of keloids.
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Sabatino M, Gravante G, Ferraro G, Savatteri V, La Grutta V. Inhibitory control by substantia nigra of generalized epilepsy in the cat. Epilepsy Res 1988; 2:380-6. [PMID: 3197707 DOI: 10.1016/0920-1211(88)90049-6] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 01/04/2023]
Abstract
Previous investigations have shown that the basal ganglia may exert a regulating influence on cortical epilepsy. Stimulation of the caudate nucleus enhances cortical penicillin (PCN) spikes. Stimulation of globus pallidus internus reduces cortical spike frequency. Since the substantia nigra pars reticulata (SNpr) seems to have an inhibitory action on the ventro-anterior (VA) and ventro-lateral (VL) thalamic nuclei and thalamic neurones send an excitatory influence to the cortex, we undertook an investigation to study nigral influence on cortical epilepsy induced by PCN. Experiments were conducted on encéphale isolé cats in which steady interictal activity was induced by means of parenteral PCN administration (feline generalized PCN epilepsy). Variations occurring in cortical PCN spikes following activation of either pars compacta (SNpc) or SNpr were analyzed. Electrical stimulation of SNpc reduced spike frequency and amplitude in 19% of the total number of stimulations; SNpr stimulation significantly inhibited cortical spikes, especially in the precruciate gyrus, in 80% of cases. The experimental findings constitute an electrophysiological feature of the control exerted by SNpr on the thalamo-cortical re-exciting loop. A putative preferential role of SNpr in the regulation of abnormal phenomena involving the neocortex is emphasized.
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Kadarian C, Broussalis AM, Miño J, Lopez P, Gorzalczany S, Ferraro G, Acevedo C. Hepatoprotective activity of Achyrocline satureioides(Lam) D. C. Pharmacol Res 2002; 45:57-61. [PMID: 11820863 DOI: 10.1006/phrs.2001.0904] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Academic Contribution Register] [Indexed: 11/22/2022]
Abstract
Aerial parts of Achyrocline satureioides(Lam) D. C. (Asteraceae) are used in folk medicine as infusions or decoctions for the management of several diseases including gastrointestinal and hepatic disorders. These data and the presence of flavonoids and caffeoyl derivatives have led us to study its hepatoprotective and choleretic activities. The hepatoprotective activity was evaluated in the bromobenzene- (BB-) induced hepatotoxicity model in mice through the measurement of the serum levels of alanine-aminotransferase (ALT) and aspartate transaminase (AST), thiobarbituric acid reacting substances (TBARS) and glutathione levels. The aqueous extract of the aerial parts of A. satureioides administered before BB, at the dose of 300 mg kg(-1)p.o., demonstrated significant inhibition (P< 0.01) in the BB increase of liver ALT and AST and in the BB-induced increase of liver TBARS content. Also it was able to significantly increase (P< 0.05) the depleted levels of liver glutathione. In addition, at the same dose, a significant increase (P< 0.01) in the bile flow of rats was found. The results obtained with the aqueous extract of A. satureioides support its use in popular medicine as a hepatoprotective and digestive agent, and the effects might be mediated through the antioxidant and choleretic activities.
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Giannella M, Pascale R, Toschi A, Ferraro G, Graziano E, Furii F, Bartoletti M, Tedeschi S, Ambretti S, Lewis RE, Viale P. Treatment duration for Escherichia coli bloodstream infection and outcomes: retrospective single-centre study. Clin Microbiol Infect 2018; 24:1077-1083. [PMID: 29371138 DOI: 10.1016/j.cmi.2018.01.013] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Received: 11/03/2017] [Revised: 01/09/2018] [Accepted: 01/10/2018] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To investigate the impact of treatment duration on mortality and on relapse in patients with Escherichia coli bloodstream infection (BSI). METHODS Retrospective single-centre study of patients diagnosed with E. coli BSI at our centre over a 4-year period. EXCLUSION CRITERIA age <18 years, clinical data not available, polymicrobial BSI, failure to receive in vitro active therapy, and death while receiving antibiotic therapy. Exposure variable was treatment duration dichotomized into short (≤10 days) and long (>10 days) therapy. Primary end point was all-cause mortality within 90 days after index BSI. Secondary end point was relapse, defined as repeat isolation of E. coli from blood cultures within 90 days after index BSI, in patients with documented clinical cure and completion of therapy for the initial episode. RESULTS Of the 856 analysed patients: 426 received short and 430 received long therapy. All-cause mortality at day 90 occurred in 47 patients; on multivariate analysis, short therapy was not associated with a higher risk of mortality, also after adjusting the model for the propensity score of receiving short therapy. Relapse occurred in 42 patients. Independent risk factors for relapse using death as competing risk were immunosuppression (subhazard ratio 4.67, p < 0.001), and end-stage liver disease (subhazard ratio 2.58, p 0.013). The propensity-weighted estimation of the average treatment effect for relapse reduction with long therapy (>10 days) was -1.6% (p 0.26) in the total population, and -7.1% (p 0.18) in immunocompromised patients. CONCLUSIONS We could not identify shorter treatment duration as a risk factor for mortality and for relapse in patients with E. coli BSI.
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Journal Article |
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Broussalis AM, Göransson U, Coussio JD, Ferraro G, Martino V, Claeson P. First cyclotide from Hybanthus (Violaceae). PHYTOCHEMISTRY 2001; 58:47-51. [PMID: 11524112 DOI: 10.1016/s0031-9422(01)00173-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 05/18/2023]
Abstract
Hypa A, a novel macrocyclic polypeptide containing 30 amino acid residues, has been isolated from the n-butanol extract of the Argentine plant Hybanthus parviflorus. The sequence, cyclo-(SCVYIPCTITALLGCSCKNKVCYNGIPCAE), was determined by automated Edman degradation, quantitative amino acid analysis and nanospray MS/MS(2). Three intramolecular disulfide bridges stabilize the cyclic peptide backbone of hypa A. Using these structural features to classify the peptide as a cyclotide, we extended the distribution of that substance class to a new genus, and now propose a uniform nomenclature for cyclotides.
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Di Donato P, Giulini NA, Bacchi Modena A, Cicchetti G, Comitini G, Gentile G, Cristiani P, Careccia A, Esposito E, Gualdi F, Golinelli S, Bergamini E, Masellis G, Rastelli S, Gigli C, Elia A, Marchesoni D, Sticotti F, Del Frate G, Zompicchiatti C, Marino L, Costa MR, Pinto P, Dodero D, Storace A, Spinelli G, Quaranta S, Bossi CM, Ollago A, Omodei U, Vaccari M, Luerti M, Repetti F, Zandonini G, Raspagliesi F, Dolci F, Gambarino G, De Pasquale B, Polizzotti G, Borsellino G, Alpinelli P, Natale N, Colombo D, Belloni C, Viani A, Cecchini G, Vinci GW, Samaja BA, Pasinetti E, Penotti M, Ognissanti F, Pesando P, Malanetto C, Gallo M, Dolfin G, Tartaglino P, Mossotto D, Pistoni A, Tarani A, Rattazzi PD, Rossaro D, Campanella M, Arisi E, Gamper M, Salvatores D, Bocchin E, Stellin G, Meli G, Azzini V, Tirozzi F, Buoso G, Fraioli R, Marsoni V, Cetera C, Sposetti R, Candiotto E, Sposetti R, Candiotto E, Pignalosa R, Del Pup L, Bellati U, Angeloni C, Buonerba M, Garzarelli S, Santilli C, Mucci M, Di Nisio Q, Cappa F, Pierangeli I, Cordone A, Falasca L, Ferrante D, Cirese E, Todaro PA, Spagnuolo L, Lanzone A, Donadio C, Fabiani M, Baldaccini E, Votano S, Bellardini P, Favale W, Pietrobattista V, Massacesi L, Donini G, Del Savio F, Palombi L, Procaccioli P, Romani A, Romagnoli G, Genazzani AR, Gambacciani M, Scarselli G, Curiel P, De Leo V, Melani A, Levi D'Ancona V, Giarrè G, Di Gioia E, Ceccarelli P, Massi GB, Cosci S, Gacci G, Cascianini A, Donati Sarti C, Bircolotti S, Pupita P, Mincigrucci M, Spadafora A, Santeufemia G, Marongiu G, Lai GR, Lai R, Dessole S, D'Andrea SA, Chiantera A, Arienzo R, Pastore AR, Tamburrino A, Cardone A, Colacurci N, Izzo S, Tesauro R, Pascarella A, De Silvio MG, Di Prisco L, Lauda N, Sirimarco F, Agrimi C, Casarella G, Senatore G, Ronzini S, Ruccia G, De Carlo G, Pisaturo G, Carlomagno F, Fasolino A, Fiorillo F, Sorrentino R, Ercolano VB, Panariello S, Brun A, Tropea P, Stigliano CM, Amoroso A, Vadalà P, Coco A, Galati G, Barese G, Masciari G, Pirillo P, Gioffrè T, Mastrantonio P, Cardamone A, D'Angelo N, Valentino G, Barretta R, Ferraro G, Ferruccio C, Agostinelli D, Corrado G, Scopelliti A, Schonauer S, Trojano V, Bongiovanni F, Tinelli F, Poddi ER, Scarpello F, Colonna L, Fischetti G, Doria R, Trombetta G, Cocca EB, D'Amore A, Di Masi M, Liguori R, Dimaggio A, Laneve MR, Maolo MC, Gravina G, Nacci G, Nocera F, Lupo A, Giannola C, Graziano R, Mezzatesta M, Vegna G, Giannone G, Palumbo G, Cancellieri F, Mondo A, Cordopatri A, Carrubba M, Mazzola V, Cincotta L, D'Asta S, Bono A, Li Calsi L, Cavallaro Nigro S, Schilirò S, Repici A, Gullo D, Orlando A, Specchiale F, Papotto A, Massacesi A, Chiantera A, De Aloysio P, Omodei U, Ognissanti F, Campagnoli C, Penotti M, Gambacciani A, Graziottin A, Baldi C, Colacurci N, Tonti GC, Parazzini F, Chatenoud L, Donati Sarti C. Factors associated with climacteric symptoms in women around menopause attending menopause clinics in Italy. Maturitas 2005; 52:181-9. [PMID: 16257609 DOI: 10.1016/j.maturitas.2005.01.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Received: 07/05/2004] [Revised: 01/14/2005] [Accepted: 01/18/2005] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To obtain data on correlates of climacteric symptoms in women around menopause attending menopause clinics in Italy. METHODS Since 1997 a large cross sectional study has been conducted on the characteristics of women around menopause attending a network of first level menopause outpatient's clinics in Italy. A total of 66,501 (mean age 54.4 years) women are considered in the present paper. RESULTS The odds ratios of moderate and severe hot flashes/night sweats were lower in more educated women and (for severe symptoms only) in women reporting regular physical activity. Depression, difficulty to sleep, forgetfulness and irritability tended to be less frequent in more educated women and (depression only) in women reporting regular physical activity. Parous women reported more frequently these symptoms. CONCLUSIONS This large study confirms in Southern European population that low education, body mass index and low physical activity are associated with climacteric symptoms. Parous women are at greater risk of psychological symptoms.
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Lahner E, Caruana P, D'Ambra G, Ferraro G, Di Giulio E, Delle Fave G, Bordi C, Annibale B. First endoscopic-histologic follow-up in patients with body-predominant atrophic gastritis: when should it be done? Gastrointest Endosc 2001; 53:443-8. [PMID: 11275884 DOI: 10.1067/mge.2001.112189] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Academic Contribution Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Body-predominant atrophic gastritis is considered a risk factor for gastric cancer and carcinoid. Timing of follow-up for patients with this disorder has not been defined. This study was undertaken to determine the optimal time for the first endoscopic/histologic follow-up in patients with body-predominant atrophic gastritis. METHODS Forty-two patients with body-predominant atrophic gastritis were randomly assigned to 1 of 2 follow-up intervals: group A (n = 22) at 24 months and group B (n = 20) at 48 months. At baseline and follow-up patients underwent gastroscopy at which biopsies were obtained from the antrum and body for histopathology and evaluation for enterochromaffin-like cells. RESULTS In group A patients, 2 antral hyperplastic polyps (9.1%) were present at baseline and 4 antral hyperplastic polyps (18.2%) were found at follow-up. In group B patients, baseline gastroscopy revealed 2 antral hyperplastic polyps (10%) and follow-up 2 antral hyperplastic polyps (10%) and 1 carcinoid tumor (5%) in the body. Atrophy and intestinal metaplasia scores in gastric body and antral mucosa in both groups did not change significantly between baseline and follow-up, except an increase in antral mucosa atrophy in group B patients (p = 0.02) was revealed. CONCLUSIONS The results of this study indicate that performing the first follow-up in patients with body-predominant atrophic gastritis need not be earlier than at 4 years after diagnosis. This interval is satisfactory for detection of potential neoplastic lesions.
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Gorzalczany S, Marrassini C, Miño J, Acevedo C, Ferraro G. Antinociceptive activity of ethanolic extract and isolated compounds of Urtica circularis. JOURNAL OF ETHNOPHARMACOLOGY 2011; 134:733-738. [PMID: 21277970 DOI: 10.1016/j.jep.2011.01.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Received: 10/14/2010] [Revised: 01/14/2011] [Accepted: 01/19/2011] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Urtica circularis (Hicken) Sorarú is a medicinal plant commonly used in traditional medicine to relieve pain in inflammatory processes. AIM OF THE STUDY In the present study, the in vivo antinociceptive effect of Urtica circularis ethanolic extract and its isolated compounds has been investigated. MATERIALS AND METHODS Antinociceptive activity was evaluated through writhing, formalin and hot plate tests in mice. The phytochemical analysis was performed. RESULTS The extract produced significant inhibition on nociception induced by acetic acid (ED50: 72.2mg/kg, i.p.) and formalin (ED50: 15.8 mg/kg, i.p.) administered intraperitoneally and also orally. Atropine diminished the activity of the extract in the acetic acid test. In this model, at dose of 10mg/kg i.p., vitexin was the most active of the isolated compounds (inhibition of 91%), and chlorogenic acid, caffeic acid and vicenin-2 (6,8-di-C-glucosyl apigenin) produced an inhibition of 72%, 41% and 41%, respectively, whereas apigenin did not show any activity. CONCLUSIONS These results suggest that Urtica circularis extract produced antinociception possibly related to the presence of vitexin, chlorogenic, caffeic acid and vicenin-2. The activation of cholinergic systems seems to be involved in the mechanism of antinociception of the extract.
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La Grutta V, Sabatino M, Gravante G, Morici G, Ferraro G, La Grutta G. A study of caudate inhibition on an epileptic focus in the cat hippocampus. ARCHIVES INTERNATIONALES DE PHYSIOLOGIE ET DE BIOCHIMIE 1988; 96:113-20. [PMID: 2460055 DOI: 10.3109/13813458809079632] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 01/01/2023]
Abstract
The mechanisms whereby the caudate nucleus modifies hippocampal spiking activity have been studied. Epileptiform activity was induced in the cat hippocampus by topical application of sodium penicillin in different concentrations. The frequency of induced spikes appeared to be directly correlated to the two doses of epileptogenic agent. The inhibitory effect of 10 Hz caudate stimulation on spike frequency was present even when stimulation lasted for 180 s. Likewise 25 Hz caudate stimulation brought about an inhibition which was maintained by stimulus trains lasting up to 90 s, while the degree of inhibition was reduced by trains of longer duration (120, 150 and 180 s); similar results were also noted in some atropine-treated cats. The time course of spikes in cats with electrolytic lesions of the caudate exhibited an increase in both frequency and duration. The results indicate that there is an optimal parameter for caudate stimulation causing inhibition of penicillin-induced hippocampal spiking activity, and suggest the possibility of tonic control of hippocampal excitability exerted by the caudate nucleus.
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Case Reports |
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Abstract
This review discusses the current concepts for the classification of gastric endocrine cells subdivided according to the type of mucosa in which they are located. In the oxyntic mucosa, the most important cell type is the ECL cell, involved in the synthesis and secretion of histamine. Proteins involved in many aspects of the biology of ECL cells including the response to the gastrin stimulus, membrane transport and docking, prevention of apoptosis, calcium homeostasis, autocrine activity, and maintenance of the differentiated cell phenotype have been localized to this cell type. Other cells of the oxyntic mucosa include: the D and EC cells producing somatostatin and serotonin, respectively, delivered through long cell processes; the X (or A-like) cells, possibly producing endothelin; and the D(1) and P cells of unknown function and possibly representing morphological variants of other cell types. In the antral mucosa, the three important cell types are represented by: the gastrin-producing G cells; the somatostatin-producing D cells, which are anatomically and functionally associated with G cells; and the serotonin-producing EC cells, which are located at the bottom of antral glands.
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Review |
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Bordi C, Annibale B, Azzoni C, Marignani M, Ferraro G, Antonelli G, D'Adda T, D'Ambra G, Delle Fave G. Endocrine cell growths in atrophic body gastritis. Critical evaluation of a histological classification. J Pathol 1997; 182:339-46. [PMID: 9349238 DOI: 10.1002/(sici)1096-9896(199707)182:3<339::aid-path854>3.0.co;2-v] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 02/05/2023]
Abstract
The aim of the present study was to evaluate the correspondence of the classification of non-antral endocrine cell growths proposed by Solcia and co-workers with clinical features and non-endocrine mucosal changes. For this purpose, 94 cases of newly diagnosed atrophic body gastritis were investigated using endoscopic biopsies and compared with 18 control subjects. The patients were subdivided into the following four groups according to the most severe pattern of endocrine cell proliferation found in the body mucosa, as shown by chromogranin A immunostaining: group 1, normal pattern (7 cases, 7.5 per cent); group 2, simple hyperplasia (6 cases, 6.5 per cent); group 3, linear hyperplasia (24 cases, 25.8 per cent); group 4; micronodular hyperplasia (56 cases, 60.2 per cent). Adenomatoid hyperplasia was found in only one case, thus precluding further analysis. Patients in groups 1 and 2 had lower acid secretion, higher gastrin level, and higher mean scores in all histopathological variables of chronic gastritis considered by the Sydney system when compared with controls, but did not differ among them in any parameter investigated. When compared with groups 1 and 2, patients of groups 3 and 4 showed higher values of circulating gastrin, higher scores of glandular atrophy, and lower values of acid secretion and of mononuclear and neutrophil inflammatory cell infiltration. Moreover, group 4 patients differed significantly from those of group 3 in their higher gastrin levels and atrophy scores, and lower scores of neutrophil cell infiltration. On the basis of these results, it is proposed that for practical purposes the normal and the simple hyperplasia patterns may be incorporated into a single group. It is concluded that this classification in its simplified form, based on a qualitative histological approach, shows clinical relevance without the need to perform expensive, time-consuming morphometric evaluations.
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Comparative Study |
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Penna C, Marino S, Vivot E, Cruañes MC, de D Muñoz J, Cruañes J, Ferraro G, Gutkind G, Martino V. Antimicrobial activity of Argentine plants used in the treatment of infectious diseases. Isolation of active compounds from Sebastiania brasiliensis. JOURNAL OF ETHNOPHARMACOLOGY 2001; 77:37-40. [PMID: 11483376 DOI: 10.1016/s0378-8741(01)00266-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 05/23/2023]
Abstract
Different extracts of Sebastiania brasiliensis, Sebastiania klotszchiana, Polygonum punctatum, Lithraea molleoides and Myrcianthes cisplatensis, all plants growing in Entre Ríos Province and traditionally used as antiseptics, were tested against a set of Gram positive and Gram negative bacteria and fungi. All the species, with the exception of M. cisplatensis, presented activity against some of the microorganisms tested. A 50% hydroalcoholic extract of S. brasiliensis was selected for bioguided fractionation. Two antimicrobial compounds identified as methylgallate (MIC 128 microg/ml) and protocatechuic acid (MIC 128 microg/ml) were isolated apart from quercetin, kaempferol, quercitrin and gallic acid.
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Azzoni C, Doglioni C, Viale G, Delle Fave G, De Boni M, Caruana P, Ferraro G, Bordi C. Involvement of BCL-2 oncoprotein in the development of enterochromaffin-like cell gastric carcinoids. Am J Surg Pathol 1996; 20:433-41. [PMID: 8604810 DOI: 10.1097/00000478-199604000-00006] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 01/31/2023]
Abstract
To evaluate the involvement of the apoptosis-suppressing protein BCL-2 in the gastrin-dependent mechanism of induction of gastric enterochromaffin-like (ECL) cell carcinoids, the endocrine cell of the oxyntic mucosa were immunohistochemically investigated in (a) 10 normogastrinemic subjects with histologically normal gastric mucosa; (b) 22 patients with endocrine cell hyperplasia and affected by hypergastrinemic conditions with different risk of gastric carcinoid development, such as sporadic Zollinger-Ellison syndrome (sZES; n = 9), ZES associated with multiple endocrine neoplasia-1 (MEN-1; n = 4), and atrophic fundal gastritis (AFG; n = 9); (c) 14 patients with ECL gastric carcinoids accounting for a total of 31 tumors investigated. In the normal oxyntic mucosa, BCL-2 was consistently expressed by a subset of endocrine cells accounting for 50.0% (median; range, 24.6-74.0%) of the total number of endocrine cells immunostained for chromogranin A (CgA) in consecutive sections. BCL-2 immunoreactive cells were located mostly in the middle mucosal layer, suggesting a role for the protein during downward migration of maturing endocrine cells. No BCL-2 immunoreactivity was found in other specialized gastric epithelial cells. Expression of BCL-2 by hyperplastic oxyntic endocrine cells (mostly ECL cells) varied in parallel with the risk of carcinoid development. In fact, the ratio of BCL-2- to CgA-immunoreactive cells was reduced (median, 4.6%; p less than 0.0001; range, 0.9-42.0%) in sZES, a condition showing virtually no risk, unchanged (median, 55.6%; range 29.4-83.8 %) in cases of MEN-1/ZES with intermediate risk, and increased (median 87.6%; p less than 0.014; range, 48.8-199.4%) in cases of AFG, a condition at the highest risk of carcinoid. In ECL cell carcinoids, BCL-2 expression varied markedly from one tumor to another even in the same patient and was low or absent in most cases. In both hyperplastic and neoplastic ECL cells, an inverse relation between BCL-2 expression and CgA immunoreactivity, that is, the cell granule content, was found. These results suggest that BCL-2 expression by hyperplastic ECL cells is independent of the influence of serum gastrin and may contribute to the development of ECL cell carcinoid tumors by extending cell exposure to oncogenic factors. Once a carcinoid tumor is established, BCL-2 expression becomes inconsistent.
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Ravini M, Ferraro G, Barbieri B, Colombo P, Rizzato G. Changing strategies of lung biopsies in diffuse lung diseases: the impact of video-assisted thoracoscopy. Eur Respir J 1998; 11:99-103. [PMID: 9543277 DOI: 10.1183/09031936.98.11010099] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 02/07/2023]
Abstract
The aims of this report were: 1) to compare the strategy of bioptic approach in Italy during the last 4 yrs with a previous period; and 2) to compare efficacy and safety of video-assisted thorascopic lung biopsy (VTLB) versus OLB. We retrospectively evaluated: 1) the strategy of the bioptic approach in the Milan Sarcoid Clinic in the years 1992-1995 (201 patients) versus 1988-1991 (197 patients); and 2) data from 65 VTLB procedures in the years 1992-1995 versus 68 OLB procedures in the years 1988-1991 performed in patients with diffuse lung disease. It was found that the use of OLB (17-9%), mediastinoscopy (15-5%), and scalene node biopsy (20-7%) decreased, whereas transbronchial biopsy (TBB) increased (11-17%). VTLB biopsy is now performed in 17% of patients. VTLB compares favourably with OLB as there is less need for analgesia (7.5+/-7.5 versus 17.5+/-8.0 methadone mg i.m.: p<0.001), lower blood loss (61+/-58 versus 156+/-84 mL in the first postoperative day: p<0.001), and shorter postoperative stay (4.7+/-1.6 versus 5.7+/-1.4 days: p<0.001). Specimen adequacy (98.6 versus 985%) and diagnostic accuracy (86.1% VTLB, versus 92.6% OLB: p>0.05) were the same in the two groups. In conclusion, video-assisted thoracoscopic lung biopsy is replacing both mediastinoscopy and open lung biopsy. It is at present the best option when a surgical procedure is required for histological confirmation of diffuse lung disease.
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Gadano A, Gurni A, López P, Ferraro G, Carballo M. In vitro genotoxic evaluation of the medicinal plant Chenopodium ambrosioides L. JOURNAL OF ETHNOPHARMACOLOGY 2002; 81:11-16. [PMID: 12020922 DOI: 10.1016/s0378-8741(01)00418-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 05/23/2023]
Abstract
Chenopodium ambrosioides (Chenopodiaceae) is an anthelmintic herb used in Latin-America's folk medicine. The aim of this work is to evaluate genetic damage induced by decoction and infusion of this plant which were assayed in different concentrations (1, 10, 100, 1000 microg/ml), by addition of the extract to human lymphocyte cell cultures. The endpoints evaluated were chromosomal aberrations (CA), sister chromatid exchanges (SCE), cell proliferation kinetics (CPK) and mitotic indexes (MI). The repeated measure analysis of variance was used for statistic evaluation of the results. The results showed (a) a statistical increase in the percentage of cells with CA and in the frequency of SCE when cultures were exposed to both preparations of Paico, (b) a decrease in MI of both preparations assayed, although no modification in the CPK values either in the infusion or in the decoction was observed. These results suggest a possible genotoxic effect of both preparations, probably due to different active principles.
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Di Donato P, Giulini NA, Bacchi Modena A, Cicchetti G, Comitini G, Gentile G, Cristiani P, Careccia A, Esposito E, Gualdi F, Golinelli S, Bergamini E, Masellis G, Rastelli S, Gigli C, Elia A, Marchesoni D, Sticotti F, Del Frate G, Zompicchiatti C, Marino L, Costa MR, Pinto P, Dodero D, Storace A, Spinelli G, Quaranta S, Bossi CM, Ollago A, Omodei U, Vaccari M, Luerti M, Repetti F, Zandonini G, Raspagliesi F, Dolci F, Gambarino G, De Pasquale B, Polizzotti G, Borsellino G, Alpinelli P, Natale N, Colombo D, Belloni C, Viani A, Cecchini G, Vinci GW, Samaja BA, Pasinetti E, Penotti M, Ognissanti F, Pesando P, Malanetto C, Gallo M, Dolfin G, Tartaglino P, Mossotto D, Pistoni A, Tarani A, Rattazzi PD, Rossaro D, Campanella M, Arisi E, Gamper M, Salvatores D, Bocchin E, Stellin G, Meli G, Azzini V, Tirozzi F, Buoso G, Fraioli R, Marsoni V, Cetera C, Sposetti R, Candiotto E, Pignalosa R, Del Pup L, Bellati U, Angeloni C, Buonerba M, Garzarelli S, Santilli C, Mucci M, Di Nisio Q, Cappa F, Pierangeli I, Cordone A, Falasca L, Ferrante D, Serra GB, Cirese E, Todaro PA, Romanini C, Spagnuolo L, Lanzone A, Donadio C, Fabiani M, Baldaccini E, Votano S, Bellardini P, Favale W, Monti V, Bonomo A, Boninfante CE, Pietrobattista P, Massacesi L, Donini G, Del Savio F, Palombi L, Procaccioli P, Romani A, Romagnoli G, Genazzani AR, Gambacciani M, Scarselli G, Curiel P, De Leo V, Melani A, Levi D'Ancona V, Giarrè G, Di Gioia E, Ceccarelli P, Massi GB, Cosci S, Gacci G, Cascianini A, Donati Sarti C, Bircolotti S, Pupita P, Mincigrucci M, Spadafora A, Santeufemia G, Marongiu G, Lai GR, Lai R, Dessole S, D'Andrea SA, Chiantera A, Arienzo R, Pastore AR, Tamburrino A, Cardone A, Colacurci N, Izzo S, Tesauro R, Pascarella A, De Silvio MG, Di Prisco L, Lauda N, Sirimarco F, Agrimi C, Casarella G, Senatore G, Ronzini S, Ruccia G, De Carlo G, Pisaturo G, Carlomagno F, Fasolino A, Fiorillo F, Sorrentino R, Ercolano VB, Panariello S, Brun A, Tropea P, Stigliano CM, Amoroso A, Vadalà P, Coco A, Galati G, Barese G, Masciari G, Pirillo P, Gioffrè T, Mastrantonio P, Cardamone A, D'Angelo N, Valentino G, Barretta R, Ferraro G, Ferruccio C, Agostinelli D, Corrado G, Scopelliti A, Schonauer S, Trojano V, Bongiovanni F, Tinelli F, Poddi ER, Scarpello F, Colonna L, Fischetti G, Doria R, Trombetta G, Cocca EB, D'Amore A, Di Masi M, Liguori R, Dimaggio A, Laneve MR, Maolo MC, Gravina G, Nacci G, Nocera F, Lupo A, Giannola C, Graziano R, Mezzatesta M, Vegna G, Giannone G, Palumbo G, Cancellieri F, Mondo A, Cordopatri A, Carrubba M, Mazzola V, Cincotta L, D'Asta S, Bono A, Li Calsi L, Cavallaro Nigro S, Schilirò S, Repici A, Gullo D, Orlando A, Specchiale F, Papotto A, Giulia FV, Adige TA, D'Aosta V, Massacesi A, Chiantera A, Donati Sarti C, De Aloysio P, Omodei U, Ognissanti F, Campagnoli C, Penotti M, Gambacciani A, Graziottin A, Baldi C, Colacurci N, Corrado Tonti G, Parazzini F, Chatenoud L. Risk factors for type 2 diabetes in women attending menopause clinics in Italy: a cross-sectional study. Climacteric 2009; 8:287-93. [PMID: 16397927 DOI: 10.1080/13697130500196866] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To analyze risk factors for type 2 diabetes among women attending menopause clinics in Italy for counselling about the menopause. SUBJECTS Women attending a network of first-level outpatient menopause clinics in Italy for general counselling about menopause or treatment of menopausal symptoms. METHODS Cross-sectional study with no exclusion criteria. Type 2 diabetes was defined according to National Diabetes Data Groups Indications and the fasting blood glucose at an oral glucose tolerance test within the previous year. RESULTS Out of the 44 694 considered in this analysis, 808 had a diagnosis of diabetes type 2 (1.8%). In comparison with women aged < 50 years, the multivariate odds ratios (OR) of type 2 diabetes were 1.31 (95% confidence interval (CI), 0.99-1.74) for women aged 50-52 years, 1.66 (95% CI, 1.27-2.17) at 53-56 years and 2.84 (95% CI, 2.20-3.67) in women aged > or = 57 years. Type 2 diabetes was less frequently reported in more educated women (OR high school/university vs. primary school = 0.44 (95% CI, 0.36-0.55)). Being overweight was associated with an increased risk of type 2 diabetes. In comparison with women reporting a low level of physical activity, the multivariate OR of type 2 diabetes was 0.67 (95% CI, 0.54-0.84) for women reporting regular physical activity. In comparison with premenopausal women, the multivariate OR of type 2 diabetes was 1.38 (95% CI, 1.03-1.84) in women with natural menopause. This finding was present also after allowing for the potential confounding effect of age. The multivariate OR of diabetes for users of hormonal replacement therapy was 0.58 (95% CI, 0.46-0.73). CONCLUSIONS This large cross-sectional study suggests that postmenopausal women are at higher risk of type 2 diabetes after allowance for the effect of age. Other main determinants of risk of type 2 diabetes in women around menopause were low socioeconomic status and being overweight. Diabetes was found less frequently in those taking hormone replacement therapy.
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Ferraro G, Montalbano ME, La Grutta V. Nitric oxide and glutamate interaction in the control of cortical and hippocampal excitability. Epilepsia 1999; 40:830-6. [PMID: 10403205 DOI: 10.1111/j.1528-1157.1999.tb00788.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 12/01/2022]
Abstract
PURPOSE We investigated the role of nitric oxide (NO) as a new neurotransmitter in the control of excitability of the hippocampus and the cerebral cortex, as well as the possible functional interaction between NO and the glutamate systems. METHODS The experiments were performed on anesthetized rats. The bioelectrical activities of the somatosensory cortex and the CA1 region of the hippocampus of these rats were recorded. Pharmacologic inhibition of NO synthase (NOS) through the nonselective and brain-selective inhibitors, N-nitro-L-arginine methyl ester (L-NAME) and 7-nitroindazole (7-NI), was performed. RESULTS The treatments caused the appearance of an interictal discharge activity in both the structures. The latency of induction and the duration of the interictal discharge activity were strictly related to the dose of NOS inhibitor used. In some cases, after L-NAME treatment at high doses, it was possible to note spike and wave afterdischarge activity in the hippocampus. All the NOS inhibitor-mediated excitatory effects were abolished by intraperitoneal (i.p.) pretreatment with the N-methyl-D-aspartic acid (NMDA) receptor antagonists (DL-2-amino-5-phosphonovaleric acid, 2-APV; dizolcipine, MK-801) and partly suppressed after the i.p. injection of the non-NMDA antagonist (6-cyano-7-nitroquinoxaline-2,3-dione; CNQX). CONCLUSIONS All data showed that the reduction of NO levels in the nervous system causes the functional prevalence of the excitatory neurotransmission, which is probably due to an NMDA overactivity caused by the absence of the NO-mediated modulatory action. Thus, it is possible to hypothesize a neuroprotective role for NO, probably through a selective desensitization of the NMDA receptors.
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Bordi C, Azzoni C, Ferraro G, Corleto VD, Gibril F, Delle Fave G, Lubensky IA, Venzon DJ, Jensen RT. Sampling strategies for analysis of enterochromaffin-like cell changes in Zollinger-Ellison syndrome. Am J Clin Pathol 2000; 114:419-25. [PMID: 10989643 DOI: 10.1093/ajcp/114.3.419] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 11/13/2022] Open
Abstract
To investigate the optimum number of biopsy specimens to be obtained for enterochromaffin-like (ECL) cell monitoring in hypergastrinemic patients and ECL cell regional variations potentially influencing the results, qualitative ECL cell changes were assessed in 149 patients with Zollinger-Ellison syndrome using jumbo biopsy specimens and a systematic sampling procedure of 4 areas each from the lesser or greater curvature of the gastric body. Of 1,176 specimens examined, 1,101 were adequate. The correlation was excellent between different sites within the greater or lesser curvature. In contrast, a normal ECL cell pattern was more frequent in the lesser curvature, whereas linear hyperplasia was more frequent in the greater curvature. Dysplastic lesions and carcinoid tumors in endoscopically unremarkable mucosa were detected in 3.4% and 1.2% of biopsy specimens, respectively, and were equally distributed between the lesser and greater curvature. Their chances of being diagnosed were related to the number of specimens examined. Extensive sampling of both the lesser and greater curvature is recommended for early diagnosis of dysplastic and/or carcinoid lesions in patients at risk. In contrast, limited sampling in the greater curvature seems to be adequate in patients with no risk for carcinoid development.
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Bashir S, Gibril F, Ojeaburu JV, Asgharian B, Entsuah LK, Ferraro G, Crafa P, Bordi C, Jensen RT. Prospective study of the ability of histamine, serotonin or serum chromogranin A levels to identify gastric carcinoids in patients with gastrinomas. Aliment Pharmacol Ther 2002; 16:1367-82. [PMID: 12144588 DOI: 10.1046/j.1365-2036.2002.01249.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Academic Contribution Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Chronic hypergastrinaemia causes gastric enterochromaffin cell proliferation and carcinoid tumours. The only reliable means to diagnose enterochromaffin cell changes/carcinoids is by biopsy. AIM To assess whether serum histamine, chromogranin A or serotonin and urinary N-methylimidazoleacetic acid or 5-hydroxyindoleacetic acid correlate with advanced enterochromaffin cell changes or gastric carcinoids in patients with gastrinomas. METHODS Consecutive patients (n=145) had the above assays and endoscopy with gastric biopsies. RESULTS Lower N-methylimidazoleacetic acid and chromogranin A levels (P < 0.0001) occurred in disease-free patients. In patients with active disease, the fasting serum gastrin levels correlated (P < 0.0001) with both chromogranin A and N-methylimidazoleacetic acid levels. Chromogranin A (P=0.005), but not N-methylimidazoleacetic acid, serotonin, 5-hydroxyindoleacetic acid or histamine levels, correlated with the enterochromaffin cell index. Carcinoids, but not advanced enterochromaffin cell changes only, were associated with higher chromogranin A and N-methylimidazoleacetic acid levels. CONCLUSIONS Serum chromogranin A levels and urinary N-methylimidazoleacetic acid levels, but not serum histamine or serotonin or urinary 5-hydroxyindoleacetic acid, correlate with the presence of gastric carcinoids. However, no assay identified patients with advanced enterochromaffin cell changes only with high sensitivity/specificity. Thus, N-methylimidazoleacetic acid and chromogranin A levels are unable to identify patients with advanced changes in enterochromaffin cells and therefore neither can replace routine gastric biopsies.
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