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Brizzi P, Andreassi M, Furi L, Zanardi J, Travagli V. LB948 Evaluation of creams containing ozonated sunflower oil. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.05.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Andreassi M, Bilenchi R. 703 Evaluation the anti-ageing and repair activity of plant stem cell extract in a topical formulation. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Bruno RM, Stea F, Sicari R, Ghiadoni L, Taddei S, Ungar A, Bonuccelli U, Tognoni G, Cintoli S, Del Turco S, Sbrana S, Gargani L, D’Angelo G, Pratali L, Berardi N, Maffei L, Picano E, Andreassi M, Angelucci A, Baldacci F, Baroncelli L, Begenisic T, Bellinvia P, Biagi L, Bonaccorsi J, Bonanni E, Borghini A, Braschi C, Broccardi M, Caleo M, Carlesi C, Carnicelli L, Cartoni G, Cecchetti L, Cenni M, Ceravolo R, Chico L, Cioni G, Costa M, D’Ascanio P, De Nes M, Di Coscio E, Di Galante M, di Lascio N, Faita F, Falorni I, Faraguna U, Fenu A, Fortunato L, Franco R, Gargiulo R, Giorgi F, Iannarella R, Iofrida C, Kusmic C, Limongi F, Maestri M, Maffei M, Maggi S, Mainardi M, Mammana L, Marabotti A, Mariotti V, Melissari E, Mercuri A, Molinaro S, Narducci R, Navarra T, Noale M, Pagni C, Palumbo S, Pasquariello R, Pellegrini S, Pietrini P, Pizzorusso T, Poli A, Retico A, Ricciardi E, Rota G, Sale A, Scabia G, Scali M, Scelfo D, Siciliano G, Tonacci A, Tosetti M, Turchi S, Volpi L. Vascular Function Is Improved After an Environmental Enrichment Program. Hypertension 2018; 71:1218-1225. [DOI: 10.1161/hypertensionaha.117.10066] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/09/2017] [Accepted: 03/15/2018] [Indexed: 11/16/2022]
Abstract
Environmental enrichment may slow cognitive decay possibly acting through an improvement in vascular function. Aim of the study was to assess the effects of a 7-month cognitive, social, and physical training program on cognitive and vascular function in patients with mild cognitive impairment. In a single-center, randomized, parallel-group study, 113 patients (age, 65–89 years) were randomized to multidomain training (n=55) or usual care (n=58). All participants underwent neuropsychological tests and vascular evaluation, including brachial artery flow-mediated dilation, carotid–femoral pulse wave velocity, carotid distensibility, and assessment of circulating hematopoietic CD34+ and endothelial progenitor cells. At study entry, an age-matched control group (n=45) was also studied. Compared with controls, patients had at study entry a reduced flow-mediated dilation (2.97±2.14% versus 3.73±2.06%;
P
=0.03) and hyperemic stimulus (shear rate area under the curve, 19.1±15.7 versus 25.7±15.1×10
−3
;
P
=0.009); only the latter remained significant after adjustment for confounders (
P
=0.03). Training improved Alzheimer disease assessment scale cognitive (training, 14.0±4.8 to 13.1±5.5; nontraining, 12.1±3.9 to 13.2±4.8;
P
for interaction visit×training=0.02), flow-mediated dilation (2.82±2.19% to 3.40±1.81%, 3.05±2.08% to 2.24±1.59%;
P
=0.006;
P
=0.023 after adjustment for diameter and shear rate area under the curve), and circulating hematopoietic CD34
+
cells and prevented the decline in carotid distensibility (18.4±5.3 to 20.0±6.6, 23.9±11.0 to 19.5±7.1 Pa
−1
;
P
=0.005). The only clinical predictor of improvement of cognitive function after training was established hypertension. There was no correlation between changes in measures of cognitive and vascular function. In conclusion, a multidomain training program slows cognitive decline, especially in hypertensive individuals. This effect is accompanied by improved systemic endothelial function, mobilization of progenitor CD34
+
cells, and preserved carotid distensibility.
Clinical Trial Registration—
URL:
http://www.clinicaltrials.gov
. Unique identifier: NCT01725178.
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Affiliation(s)
- Rosa Maria Bruno
- From the Department of Clinical and Experimental Medicine, University of Pisa, Italy (R.M.B., F.S., L.G., S.T., U.B.)
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
| | - Francesco Stea
- From the Department of Clinical and Experimental Medicine, University of Pisa, Italy (R.M.B., F.S., L.G., S.T., U.B.)
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
| | - Rosa Sicari
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
| | - Lorenzo Ghiadoni
- From the Department of Clinical and Experimental Medicine, University of Pisa, Italy (R.M.B., F.S., L.G., S.T., U.B.)
| | - Stefano Taddei
- From the Department of Clinical and Experimental Medicine, University of Pisa, Italy (R.M.B., F.S., L.G., S.T., U.B.)
| | | | - Ubaldo Bonuccelli
- From the Department of Clinical and Experimental Medicine, University of Pisa, Italy (R.M.B., F.S., L.G., S.T., U.B.)
| | - Gloria Tognoni
- Azienda Ospedaliero Universitaria Careggi, University of Florence, Italy (A.U.); Azienda Ospedaliero Universitaria Pisana, Italy (G.T., S.C.)
| | - Simona Cintoli
- Azienda Ospedaliero Universitaria Careggi, University of Florence, Italy (A.U.); Azienda Ospedaliero Universitaria Pisana, Italy (G.T., S.C.)
| | - Serena Del Turco
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
| | - Silverio Sbrana
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
| | - Luna Gargani
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
| | - Gennaro D’Angelo
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
| | - Lorenza Pratali
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
| | | | | | - Eugenio Picano
- Institute of Clinical Physiology of the National Research Council (CNR), Pisa, Italy (R.M.B., F.S., R.S., S.D.T., S.S., L.G., G.D., L.P., E.P.)
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4
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Andreassi M, Salvini C, Marenna P. 1068 Formulation and evaluation of topical products with Cannabis Sativa oil. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Carpeggiani C, Landi P, Michelassi C, Andreassi M, Sicari R, Picano E. P6148Stress echo positivity predicts cancer death. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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6
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Andreassi M, Tamasi G, Bonechi C, Byelyakova A, Giustarini D, Rossi R, Rossi C. 698 Chemical characterization and in vitro antioxidant activity of products from Copaifera langsdorffii and Eugenia caryophyllata. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Federici C, Li K, Salpea K, Maubaret C, Humphries S, Andreassi M. MS443 THE ARG399GLN VARIANT IN THE DNA REPAIR ENZYME XRCC1 IS ASSOCIATED WITH INCREASED GENETIC INSTABILITY IN PATIENTS WITH ATHEROSCLEROSIS. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70944-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Sbrana F, Bigazzi F, Puntoni M, Fossa I, dal Pino B, Pianu D, Iori D, Andreassi M, Sampietro T. P2 ANGIOTENSIN CONVERTING ENZYME POLYMORPHISM IN FAMILIAL HYPERCHOLESTEROLEMIA. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70069-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Federici C, Manfredi S, Del Fiandra M, Salpea K, Maubaret C, Humphries S, Andreassi M. THE COMMON FUNCTIONAL ARG399GLN VARIANT IN THE DNA REPAIR ENZYME XRCC1 IS ASSOCIATED WITH ELEVATED LEVELS OF MICRONUCLEUS CHROMOSOMAL DNA DAMAGE AND SHORTER TELOMERE LENGTH IN PATIENT WITH ATHEROSCLEROSIS. Atherosclerosis 2009. [DOI: 10.1016/j.atherosclerosis.2009.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Manfredi S, Federici C, Botto N, Foffa I, Palmieri C, Trianni G, Andreassi M. PLASMA CLASTOGENIC FACTORS IN PATIENTS WITH ACUTE CORONARY SYNDROME. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70671-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Federici C, Manfredi S, Botto N, Foffa I, Andreassi M. PO5-156 INCREASED CHROMOSOMAL DNA DAMAGE IS PREDICTOR OF FUTURE ADVERSE CARDIAC EVENTS IN PATIENTS WITH CHRONIC CORONARY ARTERY DISEASE. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71166-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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13
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Magi B, Ettorre A, Liberatori S, Bini L, Andreassi M, Frosali S, Neri P, Pallini V, Di Stefano A. Selectivity of protein carbonylation in the apoptotic response to oxidative stress associated with photodynamic therapy: a cell biochemical and proteomic investigation. Cell Death Differ 2005; 11:842-52. [PMID: 15088069 DOI: 10.1038/sj.cdd.4401427] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
We previously reported that photodynamic therapy (PDT) using Purpurin-18 (Pu-18) induces apoptosis in HL60 cells. Using flow cytometry, two-dimensional electrophoresis coupled with immunodetection of carbonylated proteins and mass spectrometry, we now show that PDT-induced apoptosis is associated with increased reactive oxygen species generation, glutathione depletion, changes in mitochondrial transmembrane potential, simultaneous downregulation of mitofilin and carbonylation of specific proteins: glucose-regulated protein-78, heat-shock protein 60, heat-shock protein cognate 71, phosphate disulphide isomerase, calreticulin, beta-actin, tubulin-alpha-1-chain and enolase-alpha. Interestingly, all carbonylated proteins except calreticulin and enolase-alpha showed a pI shift in the proteome maps. Our results suggest that PDT with Pu-18 perturbs the normal redox balance and shifts HL60 cells into a state of oxidative stress, which systematically induces the carbonylation of specific chaperones. As these proteins normally produce a prosurvival signal during oxidative stress, we hypothesize that their carbonylation represents a signalling mechanism for apoptosis induced by PDT.
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Affiliation(s)
- B Magi
- Department of Molecular Biology, University of Siena, via Fiorentina 1, Siena 53100, Italy
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14
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Abstract
BACKGROUND Ultraviolet (UV) rays cause depletion of the antioxidant substances contained in the epidermis. This is the rationale for the use of topical antioxidant substances. METHODS We studied the protective activity against UV radiation of a product based on lycopene and a product containing a mixture of vitamins E and C. Photostimulation was applied with a solar simulator and the cutaneous response was evaluated instrumentally. RESULTS The lycopene-based product had a much greater protective ability than the product containing the mixture of vitamins. CONCLUSIONS Lycopene has suitable characteristics to be used successfully in the prevention of cutaneous damage by free radicals. Its antioxidant ability is probably due to its high reductive power.
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Affiliation(s)
- M Andreassi
- Dipartimento Farmaco Chimico Tecnologico, Istituto di Scienze Dermatologiche, Università degli Studi di Siena, Siena, Italy.
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15
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Abstract
Oxygen situated in cutaneous cells can be activated by light. This makes the integumentary apparatus particularly vulnerable to oxidative damage and is responsible for the immediate cutaneous damage that is the basis of late phenomena, such as photo-induced ageing and tumours. Thus, the cosmetic industry has undertaken research and development into antioxidant-based products able to protect the skin from the effect of pro-oxidizing noxae. This review re-examines both antioxidants suitable for dermatological application and skin care products with antioxidant capacity, as well as the laboratory methods used to evaluate the effects and in vivo efficacy of antioxidants.
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Affiliation(s)
- M Andreassi
- Department of Pharmaceutical and Technological Science, University of Siena, Siena, Italy.
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16
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Anselmi C, Centini M, Rossi C, Ricci M, Rastrelli A, Andreassi M, Buonocore A, La Rosa C. New microencapsulated sunscreens: technology and comparative evaluation. Int J Pharm 2002; 242:207-11. [PMID: 12176248 DOI: 10.1016/s0378-5173(02)00159-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this work is to obtain new technologically improved microencapsulated sunscreens characterised by UV-radiation stability, good substantivity, low toxicity, a better tolerability and easiness to formulation. For this purpose we prepared two different systems using semisynthetic Hyaluronic Acid (HA) benzyl ester and a synthetic polymer (patent pending). We obtained these systems using two different methodologies: emulsification/solvent evaporation and emulsification/solvent extraction. The comparison between the two formulated systems was carried out in terms of their chemical-physical and biological properties.
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Affiliation(s)
- C Anselmi
- Dipartimento Farmaco Chimico Tecnologico and Scuola di Specializzazione in Scienza e Tecnologia Cosmetiche, Università di Siena, Via della Diana 2, 53100, Siena, Italy.
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17
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Rubegni P, Cevenini G, Stanghellini E, Andreassi M, Sbano P, Fabiani P, Andreassi L. A new device for objective assessment of skin type in Caucasians by violet light reflectance. Int J Cosmet Sci 2002; 24:187-93. [DOI: 10.1046/j.1467-2494.2002.00136.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Andreassi M, Ettorre A, Anselmi C, Stanghellini E, Tavarini S, Mariotti G, Andreassi L, Neri P, Di Stefano A. A2. Cytotoxic effects of a mixture of isothiazolinones on normal human keratinocytes: in vitro induction of apoptosis vs. necrosis. J Cosmet Dermatol 2002. [DOI: 10.1046/j.1473-2165.2002.00040_3.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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20
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Di Gioacchino M, Boscolo P, Cavallucci E, Verna N, Di Stefano F, Di Sciascio M, Masci S, Andreassi M, Sabbioni E, Angelucci D, Conti P. Lymphocyte subset changes in blood and gastrointestinal mucosa after oral nickel challenge in nickel-sensitized women. Contact Dermatitis 2000; 43:206-11. [PMID: 11011919 DOI: 10.1034/j.1600-0536.2000.043004206.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study investigates lymphocyte subsets in both the gastrointestinal mucosa and blood, in patients with nickel allergic contact dermatitis, after 10 mg oral nickel challenge (double-blind, placebo-controlled). 6 such patients with cutaneous symptoms induced only by skin contact with nickel (group A), 6 with a flare-up of cutaneous symptoms after food nickel ingestion (group B) and 6 healthy controls (group C) were enrolled. Blood lymphocyte subsets (CD4, CD45RO, CD8) were analyzed before and after 4 and 24 h from the challenge (test 1, 2, and 3), and intestinal biopsies were performed 2 days later. Challenges were positive in group B and negative in group A and controls. Serum and urine nickel levels significantly increased after nickel ingestion, with no differences between the 3 groups. At test 3, a significant decrease of the all CDs studied was found in group B. Biopsies of this group showed higher levels of CD45RO+ cells in the lamina propria and in the epithelium and lower levels of epithelial CD8+ lymphocytes. This study confirms that ingested nickel may induce flare-up of cutaneous reactions in some nickel-allergic patients, independently of the degree of sensitization and the intake of metal. In these patients, oral nickel stimulates the immune system, inducing maturation of T lymphocytes from virgin into memory cells; these latter cells seem to accumulate in the intestinal mucosa. The immunoreaction also involves CD8+ cells, whose role is not yet clear.
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Affiliation(s)
- M Di Gioacchino
- Department of Medicine and Science of Aging, Division University of Chieti, Italy
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21
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Boscolo P, Andreassi M, Sabbioni E, Reale M, Conti P, Amerio P, Di Gioacchino M. Systemic effects of ingested nickel on the immune system of nickel sensitised women. Life Sci 1999; 64:1485-91. [PMID: 10353613 DOI: 10.1016/s0024-3205(99)00085-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study evaluates the immune response to ingestion of 10 mg of nickel (Ni) (as Ni sulphate) in 19 young non-atopic Ni-sensitised or 9 non-allergic women (group A). After Ni ingestion at 8 a.m, non-allergic and 12 Ni-sensitised women (group B) were non-symptomatic, while 7 Ni-sensitised women (group C) showed a flare up of urticaria and/or eczema. Serum and urine Ni were greatly lower before Ni administration than after 4 and 24 hours, without difference among the 3 groups. Before treatment, group B and C showed higher values of blood CD19+ and CD5--CD19+ cells than group A, while group C showed higher serum interleukin (IL) 2 and lower serum IL-5. Four hours after Ni ingestion, group C showed significant increase in serum IL-5. Twenty-four hours after treatment, group A showed a significant reduction in blood CD4+-CD45RO- "virgin" cells and an increase of CD8+ lymphocytes, while group C showed a marked decrease in total blood lymphocytes and CD3+, CD4+-CD45RO-, CD4+-CD45RO+, CD8+, CD19+ and CD5--CD19+ cell subsets. These data may be explained with migration of lymphocytes in tissues with a Th0-like immune response, as shown by the elevated serum IL-2 and the increase of serum IL-5 during the test.
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Affiliation(s)
- P Boscolo
- Department of Medicine and Sciences of Aging, Centre of Occupational Medicine and Ergophthalmology, University G. D'Annunzio, Chieti, Italy
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22
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Boscolo P, Di Gioacchino M, Conti P, Barbacane RC, Andreassi M, Di Giacomo F, Sabbioni E. Expression of lymphocyte subpopulations, cytokine serum levels and blood and urine trace elements in nickel sensitised women. Life Sci 1999; 63:1417-22. [PMID: 9952287 DOI: 10.1016/s0024-3205(98)00408-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this study, 20 non-allergic and 20 non-atopic women sensitised only to nickel (Ni) showed similar levels of urine and serum Ni and serum chromium (Cr). On the contrary, serum copper, a marker of inflammation, was significantly higher in the Ni-sensitised group. Sensitised women also had higher values of blood B CD19+, CD5--CD19+ and B and natural killer CD3--CD25+ lymphocytes, but not alterations of some other lymphocyte subsets and serum cytokines. Urine Ni was correlated with "memory" CD4+-CD45RO+ lymphocytes in the non-allergic women and with T CD4+-CD45RO+ and CD3+-CD25+ cells in the atopic women; these subjects also showed a statistically significant correlation of serum Ni with B CD5+-CD19+ lymphocytes and serum IL-13. Moreover, serum Cr of both groups of women was positively or negatively correlated with activated HLA-DR+ cells and/or serum IL-5 and interferon gamma. These results (confirming in part those of a previous study on non-allergic men) suggest that both Ni and Cr are involved in mechanisms regulating the immune response and that allergy to these metals could be considered an alteration of their physiological role.
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Affiliation(s)
- P Boscolo
- Department of Medicine and Sciences of Aging, Centre of Occupational Medicine and Ergoftalmology, University G.D'Annunzio, Chieti, Italy
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23
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Andreassi M, Di Gioacchino M, Sabbioni E, Pietra R, Masci S, Amerio P, Bavazzano P, Boscolo P. Serum and urine nickel in nickel-sensitized women: effects of oral challenge with the metal. Contact Dermatitis 1998; 38:5-8. [PMID: 9504239 DOI: 10.1111/j.1600-0536.1998.tb05629.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
15 women with a positive patch test only to nickel (Ni) and without atopy and 10 control women were selected for the study. Blood and urine specimens were collected with a standard procedure either before (at 8 a.m.) or 4 and 24 h after the ingestion of 10 mg of Ni (as Ni sulfate). 7 of the Ni-sensitized patients showed a flare-up of eczema and/or urticaria during the test, while the other women were non-symptomatic. Serum and urine Ni of controls and Ni-sensitized women did not significantly differ. Serum and urine Ni levels determined before the oral Ni challenge were in the range of reference values recently reported by other authors (0.2-2.0 micrograms/l of serum or urine). Ni was greatly augmented in urine and serum 4 h after the challenge (25th-75th percentiles: 43-264 micrograms/l urine Ni and 15-52 micrograms/l serum Ni). 24 h after Ni ingestion, urine Ni was 41-153 micrograms/l and serum Ni 4-17 micrograms/l. Our study confirms a previous investigation showing similar levels of serum and urine Ni following ingestion of the metal in control and Ni-sensitized women without atopy.
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Affiliation(s)
- M Andreassi
- Institute of Dermatology, University G. D'Annunzio, Chieti, Italy
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24
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Andreassi M, Forleo P, Di Lorio A, Masci S, Abate G, Amerio P. Efficacy of gamma-linolenic acid in the treatment of patients with atopic dermatitis. J Int Med Res 1997; 25:266-74. [PMID: 9364289 DOI: 10.1177/030006059702500504] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Of 60 patients with atopic dermatitis (30 males and 30 females, 15-30 years old) 30 were treated with gamma-linolenic acid of (C18:3 n-6) at a dosage of 274 mg twice a day; the other 30 patients were given placebo. The patients were treated for 12 weeks, during which their symptoms were assessed on a linear scale both by a dermatologist and by themselves every 4 weeks. The patients who received gamma-linolenic acid, showed gradual improvements in pruritus, erythema, vesiculation and oozing, which were statistically significant compared with the control group (P < 0.001). Only one patient had presented with scaling at the beginning of the study and this symptom appeared to be less influenced by the effects of gamma-linolenic acid. The assessments of symptoms made by the dermatologist were generally consistent with those made by the patients themselves. gamma-linolenic acid was found to be effective and without side-effects for the treatment of atopic dermatitis.
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Affiliation(s)
- M Andreassi
- Department of Dermatology, University of Chieti, Italy
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Di Gioacchino M, Andreassi M, Boscolo P, Cervone M, Bavazzano P, Gravante M, Pavone G, Cavallucci E, Ramondo S, Schiappoli M, Verna N, Masci S, Amerio P, Giuliano G. [Allergic contact dermatitis to nickel: modification of receptor expression on peripheral lymphocytes of women after oral provocation tests (preliminary data)]. G Ital Med Lav Ergon 1997; 19:56-8. [PMID: 9377749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Blood lymphocyte subset evaluation was performed before after oral challenge with 10 mg of Ni, in 9 healthy women and in 15 allergic to Ni. Following challenge, 7 allergic showed a flare up of eczema and/or urticaria. In the controls, CD4+ lymphocytes were modified 24 hours after Ni challenge: CD4+/CD44RO- "virgin" cells were reduced while CD4+/CD45RO+ "memory" cells increased. The allergic women, not sensitive to oral Ni, showed an increase of B lymphocytes after the test. On the contrary, the oral Ni reacting patients presented a reduction of monocytes 4 hours after Ni ingestion and marked reduction (ranging from 20 to 50%) of T and B lymphocytes after 24 hours. These significant T and B lymphocytes changes suggest a migration of the cells in peripheral tissues, likely skin and GUT mucosa.
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Affiliation(s)
- M Di Gioacchino
- Immunologia Clinica ed Allergologia, Centro di Medicina del Lavoro ed Ergoftalmologia, Università G. D'Annunzio. Chieti
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26
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Andreassi M. Immunogenic activity of ingested nickel in women with nickel allergic dermatitis. J Eur Acad Dermatol Venereol 1995. [DOI: 10.1016/0926-9959(95)96407-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Masci S, De Simone C, Famularo G, Gravante M, Ciancarelli M, Andreassi M, Amerio P, Santini G. Intravenous immunoglobulins suppress the recurrences of genital herpes simplex virus: a clinical and immunological study. Immunopharmacol Immunotoxicol 1995; 17:33-47. [PMID: 7759773 DOI: 10.3109/08923979509052718] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Effective treatment is not currently available for suppressing the recurrence of genital herpes simplex virus (HSV) infections. Since intravenous immunoglobulins (IVIG) proved useful against HSV in experimental models, we treated patients with very high frequency of HSV genital recurrences (more than 15 episodes per year) with IVIG (400 mg/Kg every fourth week). The control group was treated with intermittent oral acyclovir (800 mg twice a day for one week every month). Both groups were treated for six months and, then, patients were followed-up to further six months. Both IVIG and acyclovir were effective in reducing the frequency of HSV genital recurrences as compared to base-line. However, patients treated with IVIG had a more striking reduction in the frequency of recurrences as well as both a shorter mean duration and a minor severity of the lesions as compared to acyclovir-treated patients. Furthermore, we found a trend indicating IVIG as more effective in reducing the viral load. Since in IVIG-recipients we found a strong increase of peripheral blood lymphocytes with natural killer (NK) surface phenotype, we suggest that the clinical effectiveness of IVIG treatment is probably mediated via the expansion of NK cell populations. Our study indicates that the treatment with IVIG is an effective and safe tool for suppressing the recurrences of genital HSV infections.
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Affiliation(s)
- S Masci
- Clinica Dermatologica, Universita' G. D'Annunzio, Chieti, Italia
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Di Gioacchino M, Masci S, Cavallucci E, Pavone G, Andreassi M, Gravante M, Pizzicannella G, Boscolo P. [Immuno-histopathologic changes in the gastrointestinal mucosa in patients with nickel contact allergy]. G Ital Med Lav 1995; 17:33-6. [PMID: 8991823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The study concerns the histological and immunohistochemical findings of the gastrointestinal mucosa of 20 patients (group A) suffering from contact allergic dermatitis (CAD) to Ni, with symptom recrudescence due to food ingested Ni. Results were compared with those observed in 20 patients suffering from CAD to Ni (group B), without sensitivity to food ingested Ni, and in 20 normal subjects (controls). The sensitivity to food ingested Ni, as suggested by history, was demonstrated by placebo-controlled oral-Ni challenge. The biopsies for histological and immunohistochemical study were performed during endoscopy and obtained from the antrum and from the duodenal mucosa. In the biopsies obtained from 16 of group A patients there was evidence of inflammatory infiltrate of lymphocytes and plasma cells with oedema and vasodilation in the lamina propria. Slight flattening of the villi and enlongation of the crypts were concomitant. These findings were light in the 4 patients of group A and in 11 of group B and instead were absent in the remaining group B patients and in the controls. Immunohistochemically, lymphocytes in the lamina propria were prevalently CD20 + (B cells) and CD4 + (Th cells), some were CD45RO + (memory) and finally few CD8 + (Tc/s cells). CD45RO + cells was found in cluster in patients of group A and in 4 of group B, whereas in the others were isolated. Since some studies have shown that immunological pattern of skin reaction to Ni is characterized by increased CD45RO + cells, it may be hypothesized that in patients suffering from CAD to Ni, the sensitivity to food-ingested Ni may be induced by a type IV immunological reaction in the gut.
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Abstract
The purpose of this study was to determine the factors related to physical therapy students' decisions to work with elderly patients subsequent to graduation. Questionnaires, distributed to students in graduating classes of seven entry-level master's degree programs and seven baccalaureate degree programs, were returned by 326 participants. The questionnaires included 20 questions within four categories--biographical (3), experiential (7), perceived socioeconomic (3), and attitudinal (7) factors--plus 1 question to determine whether students intended to work with elderly patients. Chi-square tests (p less than .05) determined significant relationships between the participants' intentions to work with elderly people and their answers to 10 of the questions (1 biographical, 3 experiential, and 6 attitudinal). The answers to 1 of these experiential questions and 4 of these attitudinal questions were significant at the .001 level. No perceived socioeconomic questions were significant. Our results may help in planning strategies to encourage physical therapy students to work with elderly people.
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