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Colella V, Lia RP, Di Paola G, Cortes H, Cardoso L, Otranto D. International dog travelling and risk for zoonotic Onchocerca lupi. Transbound Emerg Dis 2018; 65:1107-1109. [PMID: 29476600 DOI: 10.1111/tbed.12842] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Indexed: 12/16/2022]
Abstract
Onchocerca lupi is a recently recognized threat for the health of animals and humans in European, American, African and Middle Eastern countries. We describe a case of imported O. lupi infection in Italy and report the lifespan of this parasite in a non-endemic area, to advocate increased awareness of the veterinary community for this zoonotic parasitosis.
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Affiliation(s)
- V Colella
- Università degli Studi di Bari, Bari, Italy
| | - R P Lia
- Università degli Studi di Bari, Bari, Italy
| | - G Di Paola
- Università degli Studi di Bari, Bari, Italy
| | - H Cortes
- Universidade de Évora, Évora, Portugal
| | - L Cardoso
- University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal
| | - D Otranto
- Università degli Studi di Bari, Bari, Italy
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Luong J, Shellie R, Cortes H, Gras R, Hayward T. Ultra-trace level analysis of morpholine, cyclohexylamine, and diethylaminoethanol in steam condensate by gas chromatography with multi-mode inlet, and flame ionization detection. J Chromatogr A 2012; 1229:223-9. [DOI: 10.1016/j.chroma.2012.01.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 01/16/2012] [Accepted: 01/16/2012] [Indexed: 10/14/2022]
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Gras R, Luong J, Carter V, Sieben L, Cortes H. Practical method for the measurement of Alkyl mercaptans in natural gas by multi-dimensional gas chromatography, capillary flow technology, and flame ionization detection. J Chromatogr A 2009; 1216:2776-82. [DOI: 10.1016/j.chroma.2008.09.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 08/27/2008] [Accepted: 09/01/2008] [Indexed: 11/25/2022]
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Luong J, Gras R, Yang G, Sieben L, Cortes H. Capillary Flow Technology with Multi-Dimensional Gas Chromatography for Trace Analysis of Oxygenated Compounds in Complex Hydrocarbon Matrices. J Chromatogr Sci 2007; 45:664-70. [DOI: 10.1093/chromsci/45.10.664] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Sutherland F, Gras R, Luong J, Cortes H, Curvers J. Determination of Ultra Trace Levels of 1,2-Dichloroethane in Air by Sample Enrichment Micromachined Gas Chromatography-Differential Mobility Detection. J Chromatogr Sci 2007; 45:486-91. [DOI: 10.1093/chromsci/45.8.486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Gomez-Martin C, Camara JC, Cortes H, Jara C, Gravalos C, Rubio B, Amador ML, Hidalgo M. A phase I study of erlotinib, bevacizumab and gemcitabine in patients with advanced pancreatic cancer. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.4611] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4611 Background: Erlotinib is an EGFR TKI active in combination with gemcitabine in p with advanced pancreatic cancer (PC). The combination of gemcitabine and bevacizumab is also active in PC. A phase I of gemcitabine, bevacizumab and erlotinib in p with unresectable locally advanced or metastatic PC is being conducted. Methods: Two cohorts of 6 patients with advanced PC have been treated either with erlotinib (150 mg/day po), bevacizumab (5 mg/Kg iv, days 1 and 15, every 28 days), and either 10 mg/m2/min infusion of gemcitabine 850 mg/m2 or 1,000 mg/m2 days 1 and 15 every 28 days. P received a maximum of 6 cycles of 28 days. Cohort 1: Daily erlotinib 150 mg po + bevacizumab 5 mg/kg iv days 1 and 15 + gemcitabine 850 mg/m2 over 10 mg/m2/min infusion days 1 and 15. Cohort 2: daily erlotinib 150 mg po + bevacizumab 5 mg/kg iv days 1 and 15 + gemcitabine 100 mg/m2 over 10 mg/m2/min infusion days 1 and 15. Results: 12 p have been included in this study (6 cohort 1 and 6 cohort 2), being evaluable for toxicity. 11 p have concluded the study and 7 have received complete treatment as per protocol. Median age 62.6 yrs (range 38–71); male/female: 5/7 (42%/58%); stage III/IV: 3/9 (25%/75%); Karnofsky index 100%/80%: 2/10. 3 of 6 p in cohort 1 developed gr. 3 asthenia (50%), 2 p gr. 3 neutropenia (33.3%), whereas 1 p had grade 3 leucopenia and gr. 3 skin rash. In cohort 2, most severe adverse events were: 1 case of grade 4 GGT elevation, 1 p gr. 3 skin rash and 1 p. experienced asthenia gr. 3. No severe hematological toxicity in cohort 2 was reported. One p of each cohort required dose reduction of erlotinib, both due to skin rash. Mild diarrhea was reported in 11 of 12 p evaluated. No dose limiting toxicities has been reported. All p were available for response: 2 p reached partial response (both included in cohort 1) and 7 showed stabilization (3 and 4 in cohorts 1 and 2, respectively). No complete responses were observed. Overall disease control index was 75%. Conclusions: The combination of gemcitabine, erlotinib and bevacizumab is well tolerated. MTD has not been reached. Encouraging clinical activity in advanced pancreatic cancer has been observed. Phase I is still ongoing. Toxicity data for all the p will be presented. No significant financial relationships to disclose.
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Affiliation(s)
- C. Gomez-Martin
- 12 Octubre University Hospital, Madrid, Spain; Hospital de Alcorcon, Madrid, Spain; Roche Farma, Madrid, Spain; John Hopkins University, Baltimore, MD
| | - J. C. Camara
- 12 Octubre University Hospital, Madrid, Spain; Hospital de Alcorcon, Madrid, Spain; Roche Farma, Madrid, Spain; John Hopkins University, Baltimore, MD
| | - H. Cortes
- 12 Octubre University Hospital, Madrid, Spain; Hospital de Alcorcon, Madrid, Spain; Roche Farma, Madrid, Spain; John Hopkins University, Baltimore, MD
| | - C. Jara
- 12 Octubre University Hospital, Madrid, Spain; Hospital de Alcorcon, Madrid, Spain; Roche Farma, Madrid, Spain; John Hopkins University, Baltimore, MD
| | - C. Gravalos
- 12 Octubre University Hospital, Madrid, Spain; Hospital de Alcorcon, Madrid, Spain; Roche Farma, Madrid, Spain; John Hopkins University, Baltimore, MD
| | - B. Rubio
- 12 Octubre University Hospital, Madrid, Spain; Hospital de Alcorcon, Madrid, Spain; Roche Farma, Madrid, Spain; John Hopkins University, Baltimore, MD
| | - M. L. Amador
- 12 Octubre University Hospital, Madrid, Spain; Hospital de Alcorcon, Madrid, Spain; Roche Farma, Madrid, Spain; John Hopkins University, Baltimore, MD
| | - M. Hidalgo
- 12 Octubre University Hospital, Madrid, Spain; Hospital de Alcorcon, Madrid, Spain; Roche Farma, Madrid, Spain; John Hopkins University, Baltimore, MD
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Reis Y, Cortes H, Viseu Melo L, Fazendeiro I, Leitão A, Soares H. Microtubule cytoskeleton behavior in the initial steps of host cell invasion byBesnoitia besnoiti. FEBS Lett 2006; 580:4673-82. [PMID: 16876796 DOI: 10.1016/j.febslet.2006.07.050] [Citation(s) in RCA: 16] [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] [Received: 07/02/2006] [Accepted: 07/13/2006] [Indexed: 11/30/2022]
Abstract
Besnoitia besnoiti is a protozoan parasite responsible for bovine besnoitiosis. Indirect immunofluorescence showed that isolated B. besnoiti possesses a set of subpellicular microtubules, radiating from the apical end and extending for more than 2/3 of the cell body. Upon interaction with the host cell, B. besnoiti undergoes dramatic modifications of shape and surface, as revealed by atomic force microscopy, accompanied by a distinct tubulin labeling on the posterior region. In the host cell, the microtubule cytoskeleton shows a re-arrangement around the invading parasite suggesting a filamentous interaction with the parasite cytoskeleton during invasion.
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Affiliation(s)
- Y Reis
- Instituto de Investigação Científica Tropical, CVZ, CIISA, Av. Universidade Técnica, Lisboa 1300-477, Portugal
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Silva I, Cortes H, Escartín E, Rangel C, Florán L, Erlij D, Aceves J, Florán B. L-DOPA inhibits depolarization-induced [3H]GABA release in the dopamine-denervated globus pallidus of the rat: the effect is dopamine independent and mediated by D2-like receptors. J Neural Transm (Vienna) 2006; 113:1847-53. [PMID: 16736236 DOI: 10.1007/s00702-006-0493-7] [Citation(s) in RCA: 5] [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] [Received: 06/06/2005] [Accepted: 02/07/2006] [Indexed: 10/24/2022]
Abstract
The effect of L-DOPA on [(3)H]GABA release in slices of globus pallidus from 6-OHDA-lesioned rats was studied. Release was evoked by high (15 mM) K(+). The lesion reduced dopamine content and dopamine synthesized from L-DOPA. The inhibition of DOPA decarboxylase blocked dopamine synthesis. Endogenous dopamine released by high K(+) inhibited [(3)H]GABA release in normal but not in lesioned slices. L-DOPA inhibited (IC(50) = 0.44 microM) evoked [(3)H]GABA release. The inhibition was via D2-like receptors but not mediated by dopamine. The turning behavior induced by L-DOPA methyl ester (25 mg/kg, i.p.) was not abolished by the DOPA decarboxylase inhibitor 3-hydroxybenzylhydrazine but in this condition it was abolished by sulpiride. Results suggest that L-DOPA acting as D2-like agonist inhibits GABA release in the rat globus pallidus and induces turning behavior in rats with unilateral lesions of the dopamine innervation. L-DOPA could control Parkinson's disease symptoms acting not only as dopamine precursor but also by itself.
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Affiliation(s)
- I Silva
- Departamento de Fisiología, Biofísica y Neurociencias del CINVESTAV, México, México
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Beyer D, Eckerle P, Cortes H, Engewald W, Dettmer K. Development and Applications of an Automated In-Column Pyrolysis Gas Chromatography-Mass Spectrometry System. Chromatographia 2005. [DOI: 10.1365/s10337-005-0627-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Affiliation(s)
- H Cortes
- Laboratório de Parasitologia, Instituto de Cifencias Agrárias Mediterrânicas (ICAM), Mitra, Universidade de Evora, Apartado 94, 7000-554 Evora, Portugal
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Abstract
The current situation of endemic malaria in Mauritania is not clear since, in most health centres, suspected malaria cases are not confirmed by parasitological analysis and diagnosis is based on clinical symptoms alone. To obtain reliable data about malaria in this country, thin and thick blood smears were taken from patients with symptoms compatible with the illness, who attended two hospitals: Polyclinic of Nouakchott, which serves one-third of the country's population, where a malaria infection rate of 18.5% (77 of 446) was recorded; Plasmodium falciparum caused 61.85% of these, P. vivax 35.5% (28/77). In Kaedi Regional Hospital, provincial capital of the endemic Gorgol region, a prevalence of 25.49% (106 of 416) was recorded, with P. falciparum as the sole pathogenic species. Of the 77 cases of malaria diagnosed in Nouakchott, nine (seven of P. falciparum and two of P. vivax) were considered as endemic to the city. These cases were all children under 8 years of age except for one adult who had never left the capital, and this is the first time that cases endemic to this city have been detected.
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Affiliation(s)
- H Cortes
- Department of Parasitology, Faculty of Pharmacy, University of Granada, Spain.
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Recco RA, Zaman MM, Cortes H, Colucci J, Poomkudy G, Kaplan EL. Intra-familial transmission of life-threatening group A streptococcal infection. Epidemiol Infect 2002; 129:303-6. [PMID: 12403106 PMCID: PMC2869889 DOI: 10.1017/s0950268802007343] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [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: 11/07/2022] Open
Abstract
Invasive group A streptococcal (GAS) infections have been of increasing concern worldwide during the past 15 years. Spread of group A streptococci to contacts with resulting invasive infection has been reported in families, in residential nursing homes, and even from patients to health care workers. We report an instance of temporally related life-threatening group A streptococcal infection in a husband and 2 weeks later in his wife. This example further emphasizes the need for careful observation among family members and other close contacts of patients with invasive group A streptococcal infection. Although at present there are no universal recommendations for monitoring or for antibiotic prophylaxis of close contacts of persons with invasive GAS infection, when added to existing literature, this report suggests additional consideration is required.
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Affiliation(s)
- R A Recco
- Division of Infectious Diseases, Department of Medicine, Coney Island Hospital and State Univeristy of New York Health Science Center at Brooklyn, New York 11235, USA
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Abstract
BACKGROUND Radiotherapy is the treatment of choice for early glottic carcinoma. Thirteen percent to 24% of patients require salvage surgery. To evaluate time of recurrence, site, and locoregional control, we retrospectively reviewed 29 patients treated from 1981 to 1996. METHODS There were 28 men and 1 woman. Mean age was 63 years. Twenty were T1 (69%) and 9 were T2 (31%). Median time of recurrence was 14.5 months. In 14 patients (52%), a partial laryngectomy was done, and 13 patients had a total laryngectomy. Two refused surgery. RESULTS One patient relapsed after salvage surgery. Five-year survival after salvage surgery was 92%, with no difference between partial and total laryngectomy (p = 0.2). CONCLUSIONS Recurrences after failure to radiotherapy in T1-T2 glottic carcinoma could be salvaged with partial laryngectomy in 52% of patients, preserving laryngeal function, with adequate tumor control and acceptable morbidity. The selection of the surgical procedure is based on the tumor extension.
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Affiliation(s)
- S Rodríguez-Cuevas
- Department of Surgery of Head & Neck Tumors, Hospital de Oncología, CMN, IMSS, México City, Rebsamen, México, DF
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Raviglione MC, Boyle JF, Mariuz P, Pablos-Mendez A, Cortes H, Merlo A. Ciprofloxacin-resistant methicillin-resistant Staphylococcus aureus in an acute-care hospital. Antimicrob Agents Chemother 1990; 34:2050-4. [PMID: 2073096 PMCID: PMC171997 DOI: 10.1128/aac.34.11.2050] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.1] [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: 12/30/2022] Open
Abstract
Use of ciprofloxacin as an alternative to vancomycin for treatment of methicillin-resistant Staphylococcus aureus infection has been paralleled by the emergence of resistant strains. This phenomenon has also been noticed in our hospital. To confirm our observation, methicillin and ciprofloxacin susceptibilities were tested by disk diffusion and broth microdilution techniques. We studied 83 methicillin-resistant Staphylococcus aureus isolates obtained from various sources over a 4-month period. Ciprofloxacin resistance (MIC, greater than 2 micrograms/ml) was detected in 69 isolates (83%). Prior use of ciprofloxacin was reported for 24 of 69 patients with ciprofloxacin-resistant strains and 0 of 14 patients with ciprofloxacin-susceptible strains. The day of detection during the hospital stay and the location of the source patient were not significantly different between resistant and susceptible strains. Bacteriophage typing showed a higher occurrence of nontypeable strains among ciprofloxacin-resistant strains (54%). Review of our microbiology register showed a progressive increase in the rate of resistance to ciprofloxacin during the first year of use, with initial rates being about 10% and recent rates being higher than 80%. On the other hand, methicillin-susceptible S. aureus remained uniformly susceptible to ciprofloxacin (98.4%). We conclude that prior use of ciprofloxacin is an important factor for the selection of ciprofloxacin-resistant strains and that ciprofloxacin has limited usefulness against methicillin-resistant S. aureus.
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Cortes H, De la Guardia R. [Study of a "white gold" alloy for use in operative dentistry]. Rev Asoc Odontol Costa Rica 1968; 3:5-15. [PMID: 4881467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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