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Serafim AL, Hecktheuer LHR, Stangarlin-Fiori L, Medeiros LB, Martello L, Machado CE. Evaluation of the Implementation of Good Handling Practices in Food and Beverage Areas of Hotels. J Food Prot 2015; 78:2043-51. [PMID: 26555528 DOI: 10.4315/0362-028x.jfp-15-144] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Because of the major international-level events that have recently been held in Brazil, concerns about the sensory and hygienic-sanitary conditions of food have increased. The objective of this study was to evaluate the implementation of good handling practices in food and beverage areas of hotels, with and without outsourced professional intervention. We evaluated 19 food and beverage areas in hotels in Porto Alegre, Rio do Sul, Brazil, using a checklist that was developed by a municipal surveillance team based on existing laws for good handling practices. The evaluation was done by a skilled professional in the food safety area on two occasions, at the beginning of the study (January to May 2013) and at the end (July to November 2014), and the establishments were classified as good, regular, or poor. After the baseline evaluation, an action plan listing the noncompliance found at each location was given to those responsible for the establishments, and a period of 1 year 6 months was stipulated for improvements to be made. In the repeat evaluation, those responsible for the establishments were asked whether they had hired an outsourced professional to assist them in the improvements. The hotels showed improvement during the repeat evaluation, but a significant increase in the percentage of overall adequacy was seen only in the food and beverages areas of the 12 hotels that used the intervention of an outsourced professional. The better percentage of adequacy in establishments with outsourced professional intervention underlines the importance of an external and impartial view of routine activities in the implementation of good handling practices.
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Affiliation(s)
- A L Serafim
- Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos (PPGCTA), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, Prédio 42, Sala 3135a, Santa Maria, Rio Grande do Sul, Brazil 97119-900.
| | - L H R Hecktheuer
- Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos (PPGCTA), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, Prédio 42, Sala 3135a, Santa Maria, Rio Grande do Sul, Brazil 97119-900
| | - L Stangarlin-Fiori
- Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos (PPGCTA), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, Prédio 42, Sala 3135a, Santa Maria, Rio Grande do Sul, Brazil 97119-900; Curso de Nutrição Universidade Federal do Paraná (UFPR), Rua Padre Camargo, 280, Alto da Glória, Curitiba, Paraná, Brazil 80060-240
| | - L B Medeiros
- Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos (PPGCTA), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, Prédio 42, Sala 3135a, Santa Maria, Rio Grande do Sul, Brazil 97119-900
| | - L Martello
- EEP SENAI Visconde de Mauá, Avenida Sertório, 473, Porto Alegre, Rio Grande do Sul, Brazil 91020-001
| | - C E Machado
- EEP SENAI Visconde de Mauá, Avenida Sertório, 473, Porto Alegre, Rio Grande do Sul, Brazil 91020-001
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Martello L, Fuchsman P, Sorensen M, Magar V, Wenning RJ. Chromium geochemistry and bioaccumulation in sediments from the lower Hackensack River, New Jersey. Arch Environ Contam Toxicol 2007; 53:337-50. [PMID: 17657462 DOI: 10.1007/s00244-006-0164-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Accepted: 03/10/2007] [Indexed: 05/16/2023]
Abstract
Total and hexavalent chromium [Cr(VI)] were measured in sediment and sediment porewater in the lower Hackensack River (NJ) to assess the relationship between sediment geochemistry and chromium speciation, which in turn controls the mobility, bioavailability, and toxicity of chromium. Between 2003 and 2005, >100 surface (0 to 15 cm) sediment samples were tested for total chromium and Cr(VI), acid-volatile sulfides (AVS), ferrous iron (Fe(II)), divalent manganese (Mn(II)), ammonia, and organic carbon. Sediment porewater samples were collected by centrifugation or using in situ samplers colocated with the collection of sediments. In whole sediments, total chromium and Cr(VI) concentrations ranged from 5 to 9190 mg/kg dry weight (dw) and from <0.47 to 31 mg/kg dw, respectively. Sediment porewater concentrations ranged from <10 to 83 microg/l for total chromium; Cr(VI) was not detected in sediment porewater (n = 78). Concentrations of AVS (ranging between <10.6 to 4178 mg/kg) and other geochemistry measurements indicated anoxic, reducing conditions in the majority of sediment samples. In polychaetes (Nereis virens) and clams (Macoma nasuta) exposed in the laboratory for 28 days to sediments contained between 135 and 1780 mg/kg dw total chromium, concentrations in whole tissues after 24-hour depuration ranged between 1.2 and 14.8 mg/kg wet weight (ww; median 1.6 mg/kg ww) total chromium. In whole tissues of indigenous polychaetes collected from the sediment, tissue concentrations of total chromium ranged between 1.0 and 37.5 mg/kg ww (median = 2.1 mg/kg ww). Chromium concentrations in whole tissues of animals exposed in the field or in the laboratory showed no relationship with total chromium or Cr(VI) concentrations in the sediment. There were no statistical differences among animals exposed to sediments from site and reference locations. The results of this study are consistent with sediment studies conducted elsewhere indicating low chromium bioavailability in sediment under reducing conditions. This study also highlights the importance of sediment geochemistry and in situ porewater measurements to understand the ecological significance of chromium in sediment and the potential for human health and ecological exposures.
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Affiliation(s)
- L Martello
- ENVIRON International Corporation, 6001 Shellmound Street, Suite 700, Emeryville, CA 94608, USA.
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Gonçalves A, Braguer D, Kamath K, Martello L, Briand C, Horwitz S, Wilson L, Jordan MA. Resistance to Taxol in lung cancer cells associated with increased microtubule dynamics. Proc Natl Acad Sci U S A 2001; 98:11737-42. [PMID: 11562465 PMCID: PMC58799 DOI: 10.1073/pnas.191388598] [Citation(s) in RCA: 201] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2001] [Accepted: 07/25/2001] [Indexed: 01/02/2023] Open
Abstract
Microtubule dynamics are crucial for mitotic spindle assembly and chromosome movement. Suppression of dynamics by Taxol appears responsible for the drug's potent ability to inhibit mitosis and cell proliferation. Although Taxol is an important chemotherapeutic agent, development of resistance limits its efficacy. To examine the role of microtubule dynamics in Taxol resistance, we measured the dynamic instability of individual rhodamine-labeled microtubules in Taxol-sensitive and -resistant living human cancer cells. Taxol-resistant A549-T12 and -T24 cell lines were selected from a human lung carcinoma cell line, A549. They are, respectively, 9- and 17-fold resistant to Taxol and require low concentrations of Taxol for proliferation. We found that microtubule dynamic instability was significantly increased in the Taxol-resistant cells. For example, with A549-T12 cells in the absence of added Taxol, microtubule dynamicity increased 57% as compared with A549 cells. The length and rate of shortening excursions increased 75 and 59%, respectively. These parameters were further increased in A549-T24 cells, with overall dynamicity increasing by 167% compared with parental cells. Thus, the decreased Taxol-sensitivity of these cells can be explained by their increased microtubule dynamics. When grown without Taxol, A549-T12 cells were blocked at the metaphase/anaphase transition and displayed abnormal mitotic spindles with uncongressed chromosomes. In the presence of 2-12 nM Taxol, the cells grew normally, suggesting that mitotic block resulted from excessive microtubule dynamics. These results indicate that microtubule dynamics play an important role in Taxol resistance, and that both excessively rapid dynamics and suppressed dynamics impair mitotic spindle function and inhibit proliferation.
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Affiliation(s)
- A Gonçalves
- Unité Propre de Recherche de l'Enseignement Supérieur-A Centre National de la Recherche Scientifique 6032, Université de la Mediterranée, Marseille, France
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Grosso P, Martello L, Petrini PL, Massei R. [Prevention of vena cava thrombosis during catheterization. Comparison of calciheparin and defibrotide]. Minerva Anestesiol 1989; 55:273-6. [PMID: 2694006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Total intraparenteral nutrition therapy using an endocaval catheter is subject to complications due to the catheter itself and to the onset of phlebothrombosis of the venous district involved. Two groups of patients suffering from abdominal surgical pathologies requiring prolonged postoperative parenteral treatment were subjected to antithrombotic prophylaxis. In the first group of 20 patients, calciheparin u.s. was used and in the second defibrotide in the doses recommended in the literature. Serial lab screening of certain clotting parameters was carried of the brachio-subclavio-caval district. In the calciheparin group, the trend of certain examinations shows, as usual, a change in parameters in agreement with the drug's anticlotting action; in the group treated with defibrotide, the haemostatic balance is respected: the angiographies never showed intimal lesion or phlebothrombosis in either group. The usefulness of correct antithrombotic prophylaxis in these patients is confirmed and it is pointed out that defibrotide is more flexible and handy and that it can be used in patients in whom calciheparin is potentially risk.
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Abstract
An evaluation of the senior author's mentoplasty technique by use of inorganic silicone and acrylic implants is presented, encompassing 16 years of experience. The evaluation was chiefly concerned with the silicone implant and long-term followup observations of its survival and some of its extrusions and complications.
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Biglioli P, Arena V, Giuffrida GF, Gherli T, Vitali E, Morello M, Selva S, Martello L, Malan E. [Aortic arch prosthesis for dissecting aneurysm. Considerations on a successfully operated case]. Minerva Cardioangiol 1978; 26:529-33. [PMID: 692878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Celoria R, Bachini M, Bouzin A, Martello L, Roccia L. [Comparative evaluation of local 02 consumption in lumbar sympathetic infiltration as compared with acupuncture]. Minerva Med 1976; 67:1902-12. [PMID: 6926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The effectiveness of acupuncture in the treatment of lower limb obliterating arteritis as an alternative to pharmacological sympatheticolumbar block was assessed by comparing local O2 consumption in the ischaemic extremity. It was found that both techniques lead to vasodilation sufficient to normalise local values. Acupuncture, however, has a more protracted effect up to 24 hr., as compared with only 12 hr after pharmacological block.
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