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Cruz M, Reyes J, Angeles H, Del Rosario J, Lirazan M, Estacio R, Corales L, Dalmacio L. Antioxidant, anti-tyrosinase, and anti-angiogenic activities of dragon fruit
(Hylocereus spp.). Food Res 2022. [DOI: 10.26656/fr.2017.6(3).400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The potential health benefits of native and exotic fruits have been the subject of many
recent studies in the Philippines as fruits are chief sources of biologically active
substances such as polyphenols, carotenoids, anthocyanins and flavonoids. Dragon fruit
(Hylocereus spp.), an exotic fruit originating from South America, has become
increasingly popular in the Philippines these past few years. Relatively new to the country,
its full health benefits are yet to be discovered. In this study, the anti-tyrosinase and
antioxidant activities of the methanolic and aqueous extracts of the flesh and peel of red
and white dragon fruits were evaluated while the anti-angiogenic potential of the ethanolic
and aqueous extracts of the flesh and peel of white dragon fruit were screened using the
duck embryo chorioallantoic membrane (CAM) assay. The methanolic extract of the red
dragon fruit peel showed potent inhibition against the diphenolase activity with the
percentage of inhibition being significantly higher than that of Rutin at 20 mg/mL.
Furthermore, it exhibited better antioxidant activity than ascorbic acid in the radical
scavenging assay as well as the ability to chelate with ferrous ions and reduce the ferric
ion. The observed activities may be attributed to its high total phenolic content and the
observed presence of tannins. In CAM assay, treated duck embryo showed evident
suppression of veins at increasing concentrations of ethanolic and aqueous extracts of the
white dragon fruit flesh and the aqueous extract of the white dragon fruit peel (250 ppm to
2000 ppm), with almost no vascularization at 2000 ppm; the trends of vascularization
were almost comparable to that of quercetin, a known anti-angiogenic compound. These
results contribute to the increasing repertoire of potential health benefits of dragon fruit.
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Deng Z, Xu X, Dehghani H, Reyes J, Wong J, Tran P, Wang K. Quantification of Tumor Location and Growth for Orthotopic Pancreatic Cancer Model Using Bioluminescence Tomography-Guided System. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.225] [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: 10/20/2022]
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Vallejo-Timaran DA, Reyes J, Gilbert RO, Lefebvre RC, Palacio-Baena LG, Maldonado-Estrada JG. Incidence, clinical patterns, and risk factors of postpartum uterine diseases in dairy cows from high-altitude tropical herds. J Dairy Sci 2021; 104:9016-9026. [PMID: 34001365 DOI: 10.3168/jds.2020-18692] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 04/10/2020] [Accepted: 04/05/2021] [Indexed: 11/19/2022]
Abstract
The cow's uterus sustains bacterial contamination and active inflammation after calving as part of the normal physiological process of uterine involution. Although the definition, incidence, and risk factors for postpartum uterine diseases (PUD) have been documented in annual calving systems with high-producing cows on total mixed ration, the literature contains little information for other production systems. The objective of this study was to quantify the incidence risk and factors associated with metritis, clinical endometritis, and cytological endometritis in high-altitude tropical dairy herds in a pasture-based system. A total of 248 cows from 5 commercial dairy herds in northern Antioquia, Colombia, were enrolled in this prospective observational longitudinal cohort study. Data collection and PUD diagnosis were performed at d 0, 3, 10, 17, 24, 31, 38, 45, and 52 (±1) after parturition. Between 60 and 70 d, cows were systematically enrolled in a synchronization protocol, and herds were visited monthly for pregnancy diagnosis until 180 ±15 d. The multivariable logistic regression model of variables associated with PUD occurrence included (a) parity, season of calving, transition diet, and body condition score at calving; (b) blood calcium, phosphorus, and magnesium concentrations, and milk urea nitrogen, β-hydroxybutyrate and fat-to-protein ratio; and (c) dystocia, retained placenta, and delayed uterine involution. The incidences of puerperal metritis, clinical metritis (MET), clinical endometritis (CE), and cytological endometritis (CYTO) were 2.8, 25, 29, and 26%, respectively. Retained placenta and dystocia were associated with MET, and MET was associated with CE. Low blood calcium concentration at calving was associated with CYTO. Overall, 51.2% of the cows suffered at least 1 category of PUD during the first 60 d postpartum (DPP). However, cows also suffered from different consecutive clinical events of PUD (MET, CE, and CYTO) during the follow-up period (0 to 180 ±15 DPP). These events could be grouped into 4 types (which were referred to as "clinical patterns") based on interactions between MET, CE, and CYTO.
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Affiliation(s)
- D A Vallejo-Timaran
- One Health and Veterinary Innovative Research and Development Group (OHVRI-Group), Department of Theriogenology, College of Veterinary Medicine, University of Antioquia, PO Box 050010, Medellín, Colombia.
| | - J Reyes
- Biogenesis Research Group, College of Veterinary Medicine, University of Antioquia, PO Box 050010, Medellín, Colombia
| | - R O Gilbert
- Department of Clinical Sciences, School of Veterinary Medicine, Ross University, PO Box 334, Basseterre, Saint Kitts, West Indies
| | - R C Lefebvre
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montréal, PO Box 6128, St-Hyacinthe, Quebec, Canada
| | - L G Palacio-Baena
- One Health and Veterinary Innovative Research and Development Group (OHVRI-Group), Department of Theriogenology, College of Veterinary Medicine, University of Antioquia, PO Box 050010, Medellín, Colombia
| | - J G Maldonado-Estrada
- One Health and Veterinary Innovative Research and Development Group (OHVRI-Group), Department of Theriogenology, College of Veterinary Medicine, University of Antioquia, PO Box 050010, Medellín, Colombia
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Marita TG, Novella M, Heredia ME, Florido M, Sanchez-Contador C, Iyoa E, Ortega S, Miró E, Artigues G, Gelabert J, Garcia-Cortes P, Lucero J, Rodriguez C, Ruiz A, Roca P, Sastre J, Reyes J. RESULT OF THE FIRST TWO ROUNDS OF THE COLORECTAL CANCER SCREENING PROGRAM IN THE BALEARIC ISLANDS (SPAIN). Gastroenterol Hepatol 2021; 45 Suppl 1:55-57. [PMID: 33545238 DOI: 10.1016/j.gastrohep.2020.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Affiliation(s)
- Trelles G Marita
- Servicio de Digestivo. Hospital Comarcal de Inca. Mallorca, China; Grupo Multidiciplinar de Oncología Translacional (GMOT) Del Instituto de Investigación Sanitaria de Las Islas Baleares (IdISBa), Spain
| | - M Novella
- Servicio de Digestivo. Hospital Ca'Nmisses, Ibiza, China
| | - M E Heredia
- Servicio de Digestivo.HospitalMateuOrfila, Menorca, China
| | - M Florido
- Servicio de Digestivo. Hospital Comarcal de Inca. Mallorca, China
| | - C Sanchez-Contador
- Direccion General de Salut PúblIca I Participació. Conselleria de Salut. Govern de Les IlLes Balears, China
| | - E Iyoa
- Servicio de Digestivo. Hospital Comarcal de Inca. Mallorca, China
| | - S Ortega
- Servicio de Digestivo. Hospital Comarcal de Inca. Mallorca, China
| | - E Miró
- Direccion General de Salut PúblIca I Participació. Conselleria de Salut. Govern de Les IlLes Balears, China
| | - G Artigues
- Direccion General de Salut PúblIca I Participació. Conselleria de Salut. Govern de Les IlLes Balears, China
| | - J Gelabert
- Servicio de Digestivo.HospitalMateuOrfila, Menorca, China
| | | | - J Lucero
- Servicio de Digestivo. Hospital Ca'Nmisses, Ibiza, China
| | - C Rodriguez
- Servicio de Digestivo. Hospital Ca'Nmisses, Ibiza, China
| | - A Ruiz
- Servicio de Digestivo. Hospital Ca'Nmisses, Ibiza, China
| | - Pilar Roca
- Departamento de Biología Fundamental y Ciencias de la Salud de la Universidad de las Islas Baleares, Spain; Grupo Multidiciplinar de Oncología Translacional (GMOT) Del Instituto de Investigación Sanitaria de Las Islas Baleares (IdISBa), Spain
| | - Jordi Sastre
- Departamento de Biología Fundamental y Ciencias de la Salud de la Universidad de las Islas Baleares, Spain; Grupo Multidiciplinar de Oncología Translacional (GMOT) Del Instituto de Investigación Sanitaria de Las Islas Baleares (IdISBa), Spain
| | - J Reyes
- Servicio de Digestivo. Hospital Comarcal de Inca. Mallorca, China; Grupo Multidiciplinar de Oncología Translacional (GMOT) Del Instituto de Investigación Sanitaria de Las Islas Baleares (IdISBa), Spain
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Blanco-Dominguez I, Duch F, Reyes J, Polo V, Abad JM, Gomez-Barrera M, Olate-Perez Á. Permanent corneal opacification after refractive surgery with a combined technique: Photorefractive keratectomy (PRK) and accelerated cross-linking (PRK Xtra) in healthy patients. J Fr Ophtalmol 2020; 44:e141-e143. [PMID: 33384166 DOI: 10.1016/j.jfo.2020.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 04/15/2020] [Accepted: 06/02/2020] [Indexed: 11/30/2022]
Affiliation(s)
- I Blanco-Dominguez
- Institut Clínic d'Oftalmologia (ICOF), Hospital Clínic, Carrer de Sabino Arana, 1, 08028 Barcelona, Spain.
| | - F Duch
- Departament of Refractive Surgery, Institut Català de la Retina, Carrer de Ganduxer, 117, 08022 Barcelona, Spain
| | - J Reyes
- Department of Ophthalmology, Miguel-Servet University Hospital, Paseo-Isabel la Católica, 1-3, 50009 Zaragoza, Spain
| | - V Polo
- Department of Ophthalmology, Miguel-Servet University Hospital, Paseo-Isabel la Católica, 1-3, 50009 Zaragoza, Spain
| | - J M Abad
- Department of Public Health, University of Zaragoza, 50009 Zaragoza, Spain
| | - M Gomez-Barrera
- San-Jorge University, Autovía-Mudéjar, km. 299, 50830 Villanueva-de-Gállego, Zaragoza, Spain
| | - Á Olate-Perez
- Institut Clínic d'Oftalmologia (ICOF), Hospital Clínic, Carrer de Sabino Arana, 1, 08028 Barcelona, Spain
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Fontes D, Reyes J, Ahmed K, Kinzel M. A study of fluid dynamics and human physiology factors driving droplet dispersion from a human sneeze. Phys Fluids (1994) 2020; 32:111904. [PMID: 33244214 PMCID: PMC7682788 DOI: 10.1063/5.0032006] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 10/30/2020] [Indexed: 05/04/2023]
Abstract
Recent studies have indicated that COVID-19 is an airborne disease, which has driven conservative social distancing and widescale usage of face coverings. Airborne virus transmission occurs through droplets formed during respiratory events (breathing, speaking, coughing, and sneezing) associated with the airflow through a network of nasal and buccal passages. The airflow interacts with saliva/mucus films where droplets are formed and dispersed, creating a route to transmit SARS-CoV-2. Here, we present a series of numerical simulations to investigate droplet dispersion from a sneeze while varying a series of human physiological factors that can be associated with illness, anatomy, stress condition, and sex of an individual. The model measures the transmission risk utilizing an approximated upper respiratory tract geometry for the following variations: (1) the effect of saliva properties and (2) the effect of geometric features within the buccal/nasal passages. These effects relate to natural human physiological responses to illness, stress, and sex of the host as well as features relating to poor dental health. The results find that the resulting exposure levels are highly dependent on the fluid dynamics that can vary depending on several human factors. For example, a sneeze without flow in the nasal passage (consistent with congestion) yields a 300% rise in the droplet content at 1.83 m (≈6 ft) and an increase over 60% on the spray distance 5 s after the sneeze. Alternatively, when the viscosity of the saliva is increased (consistent with the human response to illness), the number of droplets is both fewer and larger, which leads to an estimated 47% reduction in the transmission risk. These findings yield novel insight into variability in the exposure distance and indicate how physiological factors affect transmissibility rates. Such factors may partly relate to how the immune system of a human has evolved to prevent transmission or be an underlying factor driving superspreading events in the COVID-19 pandemic.
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Affiliation(s)
- D. Fontes
- Florida Space Institute, University of Central
Florida, Orlando, Florida 32826, USA
| | - J. Reyes
- Mechanical and Aerospace Engineering Department,
University of Central Florida, Orlando, Florida 32816,
USA
| | - K. Ahmed
- Mechanical and Aerospace Engineering Department,
University of Central Florida, Orlando, Florida 32816,
USA
| | - M. Kinzel
- Mechanical and Aerospace Engineering Department,
University of Central Florida, Orlando, Florida 32816,
USA
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Reyes J, Toledo M, Michán C, Siles JA, Alhama J, Martín MA. Biofiltration of butyric acid: Monitoring odor abatement and microbial communities. Environ Res 2020; 190:110057. [PMID: 32805248 DOI: 10.1016/j.envres.2020.110057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/10/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
The objective of this study is to evaluate comparatively the odor removal efficacy of two biofilters operated under different conditions and to identify taxonomically the microbial communities responsible for butyric acid degradation. Both biofiltration systems, which were filled with non-inoculated wood chips and exposed to gas streams containing butyric acid, were evaluated under different operational conditions (gas airflow and temperature) from the physical-chemical, microbiological and olfactometric points of view. The physical-chemical characterization showed the acidification of the packing material and the accumulation of butyric acid during the biofiltration process (<60 days). The removal efficacy was found to be 98-100% during the first 20 days of operation, even at high odor concentration. Changes in the operational temperature increased the odor load factor from 400 to 1400 ouE/m2·s, which led to the reduction of microbiota in the packing material, and a drastic drop of the odor removal efficacy. However, the progressive increase in gas airflow improved the biodegradation efficacy of butyric acid up to 88% with odor loadings as high as 33,000 ouE/m3, while a linear relationship between odor inlet load and removal capacity was also found. The analysis of the microbial community showed that Proteobacteria was the most abundant phylum along the biofiltration time (58-92%) and regardless of the operational conditions. Finally, principal component analysis applied to the physical-chemical and microbiological data set revealed significant differences between the two biofilters under study.
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Affiliation(s)
- J Reyes
- Chemical Engineering Department, University of Cordoba, Campus Universitario de Rabanales, Ctra. N-IV, Km 396, Building Marie Curie (C-3), 14071, Córdoba, Spain
| | - M Toledo
- Chemical Engineering Department, University of Cordoba, Campus Universitario de Rabanales, Ctra. N-IV, Km 396, Building Marie Curie (C-3), 14071, Córdoba, Spain
| | - C Michán
- Department of Biochemistry and Molecular Biology, University of Cordoba, Campus Universitario de Rabanales, Ctra. N-IV, Km 396, Building Severo Ochoa, 14071, Córdoba, Spain
| | - J A Siles
- Chemical Engineering Department, University of Cordoba, Campus Universitario de Rabanales, Ctra. N-IV, Km 396, Building Marie Curie (C-3), 14071, Córdoba, Spain
| | - J Alhama
- Department of Biochemistry and Molecular Biology, University of Cordoba, Campus Universitario de Rabanales, Ctra. N-IV, Km 396, Building Severo Ochoa, 14071, Córdoba, Spain
| | - M A Martín
- Chemical Engineering Department, University of Cordoba, Campus Universitario de Rabanales, Ctra. N-IV, Km 396, Building Marie Curie (C-3), 14071, Córdoba, Spain.
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Viettri M, Herrera L, Aguilar CM, Morocoima A, Reyes J, Lares M, Lozano-Arias D, García-Alzate R, Chacón T, Feliciangeli MD, Ferrer E. Molecular characterization of Trypanosoma cruzi and Leishmania spp. coinfection in mammals of Venezuelan coendemic areas. J Vector Borne Dis 2020; 56:252-262. [PMID: 32655075 DOI: 10.4103/0972-9062.289394] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND & OBJECTIVES Trypanosoma cruzi and Leishmania spp. are protozoans that cause American trypanosomiasis and leishmaniasis, respectively. In endemic foci where both diseases coincide, coinfection can occur. The objective of this work was the characterization of the parasites involved in coinfection in several endemic areas of Venezuela. METHODS Molecular characterization was done in 30 samples of several species of mammals (Didelphis marsupialis, Equus mulus, Rattus rattus, Canis familiaris, Felis catus, and Sciurus granatensis) from the states of Anzoategui, Cojedes and Capital District diagnosed with T. cruzi and Leishmania spp. coinfections. For the typing of T. cruzi DTUs, the markers of miniexon, 24Sa rDNA, 18Sa rDNA, and hsp60-PCR-RFLP (EcoRV) were used. Infection by Leishmania spp. was characterized by miniexon multiplex PCR for complexes of Leishmania and ITS1-PCR-RFLP (HaeIII, HhaI, and RsaI) for the identification of the species. RESULTS The T. cruzi TcI was present in 100% of the coinfected mammals, which included 76.7% of triple infection by T. cruzi TcI-complex-L. (L) mexicana-L. infantum/chagasi, 13.3% of double infection by T. cruzi TcI-L. mexicana and 10% of double infection by T. cruzi Tcl-L. infantum/chagasi. INTERPRETATION & CONCLUSION These results suggest that the double or triple infection is a phenomenon existing in almost all the coendemics areas and mammals studied, which might influence the mechanisms of adaptation and pathogenicity of these parasites.
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Affiliation(s)
- M Viettri
- Instituto de Investigaciones Biomédicas "Dr. Francisco J. Triana Alonso" (BIOMED); Departamento de Clinico Integral, Facultad de Ciencias de la Salud, Universidad de Carabobo Sede Aragua, Maracay, Venezuela
| | - L Herrera
- Instituto de Zoología y Ecología Tropical (IZET), Facultad de Ciencias, Universidad Central de Venezuela (UCV), Caracas, Venezuela
| | - C M Aguilar
- Centro de Investigaciones en Enfermedades Tropicales (CIET-UC), Facultad de Ciencias de la Salud, Universidad de Carabobo, San Carlos, Cojedes, Venezuela
| | - A Morocoima
- Centro de Medicina Tropical de Oriente, Universidad de Oriente (UDO) Núcleo Anzoátegui, Barcelona, estado Anzoátegui, Venezuela
| | - J Reyes
- Instituto de Investigaciones Biomédicas "Dr. Francisco J. Triana Alonso" (BIOMED), Maracay, Venezuela
| | - M Lares
- Instituto de Investigaciones Biomédicas "Dr. Francisco J. Triana Alonso" (BIOMED), Maracay, Venezuela
| | - D Lozano-Arias
- Instituto de Zoología y Ecología Tropical (IZET), Facultad de Ciencias, Universidad Central de Venezuela (UCV), Caracas, Venezuela
| | - R García-Alzate
- Instituto de Zoología y Ecología Tropical (IZET), Facultad de Ciencias, Universidad Central de Venezuela (UCV), Caracas, Venezuela
| | - T Chacón
- Instituto de Zoología y Ecología Tropical (IZET), Facultad de Ciencias, Universidad Central de Venezuela (UCV), Caracas, Venezuela
| | - M D Feliciangeli
- Instituto de Investigaciones Biomédicas "Dr. Francisco J. Triana Alonso" (BIOMED); Centro Nacional de Referencia de Flebótomos, BIOMED, Facultad de Ciencias de la Salud, Universidad de Carabobo, Maracay, Venezuela
| | - E Ferrer
- Instituto de Investigaciones Biomédicas "Dr. Francisco J. Triana Alonso" (BIOMED); Departamento de Parasitología, Facultad de Ciencias de la Salud, Universidad de Carabobo Sede Aragua, Maracay, estado Aragua, Venezuela
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Jaime J, Vargas-Bermúdez DS, Yitbarek A, Reyes J, Rodríguez-Lecompte JC. Differential immunomodulatory effect of vitamin D (1,25 (OH) 2 D 3) on the innate immune response in different types of cells infected in vitro with infectious bursal disease virus. Poult Sci 2020; 99:4265-4277. [PMID: 32867971 PMCID: PMC7598002 DOI: 10.1016/j.psj.2020.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/11/2020] [Accepted: 06/05/2020] [Indexed: 12/14/2022] Open
Abstract
It has been demonstrated that vitamin D (Vit D) included in diets offers a beneficial effect by improving innate immune responses in chickens. However, its mechanisms of action and the effect on immunosuppressive pathogens, such as infectious bursal disease virus, are not yet known. In the present study, we have studied the immunomodulatory effect of Vit D on the innate immune response in 3 cell lines: fibroblast cells (DF-1), macrophages (HD11), and B cells (DT-40) infected with IBDV (intermediate vaccine) at 2 multiplicity of infections (MOI) (1 and 0.1). Genes associated with innate immune responses (TLR-3, TLR-21, MDA-5, MyD88, TRIF, IRF-7, INF-α, INF-β, PKR, OAS, viperin, IL-1β, IL-6, and IL-12) were evaluated at different time points (3, 6, 12, 24, and 36 h after infection, h.p.i). Virus production reached a maximum at 24 h.p.i., which was significantly (P < 0.05) higher in DF-1 cells, followed by HD-11 and DT-40 cells. Mainly in HD-11 cells, there was a significant (P < 0.05) effect of Vit D supplementation on receptors TLR-3, TLR-21, and MDA-5 after 12 h.p.i, independent of MOI. DT-40 cells showed the highest antiviral activity, with a significant (P < 0.05) effect on IRF-7, IFN-β, OAS, and PKR gene expression, where expression of IRF-7 and IFN-β correlated positively with Vit D supplementation, while OAS and PKR were independent of Vit D. Proinflammatory cytokines were significantly (P < 0.05) upregulated and found to be Vit D and MOI dependent. In conclusion, this study demonstrated the capacity of IBDV to trigger a strong innate immune response in chicken cells and contributes to the understanding of the activation pathways of innate immunity induced by IBDV and further shows the benefitial effect of Vit D supplementation as an immunomodulator.
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Affiliation(s)
- J Jaime
- Universidad Nacional de Colombia, sede Bogotá. Facultad de Medicina Veterinaria y de Zootecnia. Departamento de Salud Animal. Centro de Investigación en Inmunología e Infectología Veterinaria (CI(3)V), Bogotá CP 11001, Colombia
| | - D S Vargas-Bermúdez
- Universidad Nacional de Colombia, sede Bogotá. Facultad de Medicina Veterinaria y de Zootecnia. Departamento de Salud Animal. Centro de Investigación en Inmunología e Infectología Veterinaria (CI(3)V), Bogotá CP 11001, Colombia
| | - A Yitbarek
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph N1G 2W1, ON, Canada
| | - J Reyes
- Grupo de investigacion Biogenesis, Universidad de Antioquia, Medellín, Colombia
| | - J C Rodríguez-Lecompte
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada, C1A 4P3.
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Reyes J, Gutiérrez MC, Toledo M, Vera L, Sánchez L, Siles JA, Martín MA. Environmental performance of an industrial biofilter: Relationship between photochemical oxidation and odorous impacts. Environ Res 2020; 183:109168. [PMID: 32004831 DOI: 10.1016/j.envres.2020.109168] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 12/20/2019] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
Biological techniques are widely used to treat gaseous streams derived from waste treatment plants. The generation of volatile organic compounds (VOCs) is one of the principal pollution sources in composting facilities from which nuisance odours are released. In addition, the generation of photochemical smog with other gases such as NOX can produce ozone at ground level due to their photochemical ozone creation potential (POCP). In this work, the performance of an industrial biofilter was evaluated from an environmental point of view. Specifically, this study evaluated the potential impact in terms of photochemical oxidation and odour emission derived from composting in a vessel under four different aeration conditions. Gas chromatography-time-of-flight mass spectrometry (GC-TOFMS) was used to perform the chemical characterisation of the gaseous streams, while dynamic olfactometry was used to carry out the sensorial analysis. A total of 95 compounds belonging to 12 different families of VOCs were selected. Principal component analysis revealed the influence of each VOC family on each impact category and explained 88% of the total variance. Multivariate regression was used to study the correlation between photochemical oxidation and odour impact, which has never been reported before. The correlations obtained (r ≥ 0.97) evidenced the direct relationship between these two impacts. Photochemical oxidation and odour emission were proven to be important environmental impacts derived from composting facilities, whose abatement might be carried out by biofiltration systems.
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Affiliation(s)
- J Reyes
- Department of Inorganic Chemistry and Chemical Engineering, Area of Chemical Engineering, University of Cordoba, Campus Universitario de Rabanales, Carretera N-IV, km 396, Edificio Marie Curie (C-3), 14071, Córdoba, Spain
| | - M C Gutiérrez
- Department of Inorganic Chemistry and Chemical Engineering, Area of Chemical Engineering, University of Cordoba, Campus Universitario de Rabanales, Carretera N-IV, km 396, Edificio Marie Curie (C-3), 14071, Córdoba, Spain
| | - M Toledo
- Department of Inorganic Chemistry and Chemical Engineering, Area of Chemical Engineering, University of Cordoba, Campus Universitario de Rabanales, Carretera N-IV, km 396, Edificio Marie Curie (C-3), 14071, Córdoba, Spain
| | - L Vera
- Odournet SL, Av. Corts Catalanes, 5-7,·Nave 3, Parc Empresarial Trade Center, 08173, Sant Cugat del Vallès, Barcelona, Spain
| | - L Sánchez
- Department of Inorganic Chemistry and Chemical Engineering, Area of Inorganic Chemistry, University of Cordoba, Campus Universitario de Rabanales, Carretera N-IV, km 396, Edificio Marie Curie (C-3), 14071, Córdoba, Spain
| | - J A Siles
- Department of Inorganic Chemistry and Chemical Engineering, Area of Chemical Engineering, University of Cordoba, Campus Universitario de Rabanales, Carretera N-IV, km 396, Edificio Marie Curie (C-3), 14071, Córdoba, Spain
| | - M A Martín
- Department of Inorganic Chemistry and Chemical Engineering, Area of Chemical Engineering, University of Cordoba, Campus Universitario de Rabanales, Carretera N-IV, km 396, Edificio Marie Curie (C-3), 14071, Córdoba, Spain.
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Castaño Gamboa N, Reyes J, Montenegro A. PSU7 COST-EFFECTIVENESS ANALYSIS OF APIXABAN FOR THE PREVENTION OF VENOUS THROMBOEMBOLIC EVENTS AFTER HIP OR KNEE REPLACEMENT SURGERY IN COLOMBIA. Value Health Reg Issues 2019. [DOI: 10.1016/j.vhri.2019.08.439] [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: 10/25/2022]
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Bonkowski M, Shawn D, Lu Y, Schultz M, Reyes J, Guarente L, Sinclair D. DIVERGENT REGULATION OF SIRT1 MEDIATES THE ENDOCRINE RESPONSE TO CALORIE RESTRICTION. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | | | | | | | | | - D Sinclair
- Paul F. Glenn Labs for the Biology of Aging, Harvard Medical School
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Reyes J, Herrera M, Marquina J, Enjoy D, Pinto-Santini L. Ambiente físico y respuestas fisiológicas de ovinos bajo sombra en horas de máxima radiación. ARCH ZOOTEC 2018. [DOI: 10.21071/az.v67i259.3786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Con el objeto de describir la relación entre las variables climáticas y las respuestas fisiológicas, 20 ovejas fueron asignadas a: Con Sombra (CS): sombra artificial (12:00 - 14:00 h) en corral con techo de malla sombra (70%); Sin Sombra (SS): sin ofrecimiento de sombra. Se determinó radiación solar (RS; W/m2), temperatura ambiental (°C), humedad relativa (%), temperatura de globo negro (TGN; °C) e índice de temperatura-humedad (ITH; unidades), temperatura superficial (TS; °C; termómetro infrarrojo), temperatura corporal (TC; °C; termómetro digital), frecuencia respiratoria (FR; mov/min; observación directa) y coeficiente de tolerancia al calor (CTC; unidades) (PROC MIXED; SAS).Adicionalmente, los datos fueron analizados por componentes principales (InfoStat/E, 2008).CS presenta una menor TS (35,9) en comparación con SS (38,9; P ≤ 0,01); igual ocurre en TC (P ≤ 0,01). La FR en CS (112,3) fue superior a SS (139,6; P ≤ 0,01). El CTC fue mayor en SS (7,8) vs. CS (5,8; P ≤ 0,01), indicando mejor bienestar térmico en CS. La TS en lomo, cadera y/o costado presenta alta relación con TC. TGN > 42,8 y de RS > 529,1 podrían indicar reducciones del bienestar térmico. Basado en la TC y FR, el punto de quiebre del ITH en ovinos es > 80.
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Metcalf RA, Pagano MB, Hess JR, Reyes J, Perkins JD, Montenovo MI. A data-driven patient blood management strategy in liver transplantation. Vox Sang 2018; 113:421-429. [PMID: 29714029 DOI: 10.1111/vox.12650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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] [Revised: 02/02/2018] [Accepted: 03/05/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVES Blood utilization during liver transplant has decreased, but remains highly variable due to many complex surgical and physiologic factors. Previous models attempted to predict utilization using preoperative variables to stratify cases into two usage groups, usually using entire blood units for measurement. We sought to develop a practical predictive model using specific transfusion volumes (in ml) to develop a data-driven patient blood management strategy. MATERIALS AND METHODS This is a retrospective evaluation of primary liver transplants at a single institution from 2013 to 2015. Multivariable analysis of preoperative recipient and donor factors was used to develop a model predictive of intraoperative red-blood-cell (pRBC) use. RESULTS Of 256 adult liver transplants, 207 patients had complete transfusion volume data for analysis. The median intraoperative allogeneic pRBC transfusion volume was 1250 ml, and the average was 1563 ± 1543 ml. Preoperative haemoglobin, spontaneous bacterial peritonitis, preoperative haemodialysis and preoperative international normalized ratio together yielded the strongest model predicting pRBC usage. When it predicted <1250 ml of pRBCs, all cases with 0 ml transfused were captured and only 8·6% of the time >1250 ml were used. This prediction had a sensitivity of 0·91 and a specificity of 0·89. If predicted usage was >2000 ml, 75% of the time blood loss exceeded 2000 ml. CONCLUSION Patients likely to require low or high pRBC transfusion volumes were identified with excellent accuracy using this predictive model at our institution. This model may help predict bleeding risk for each patient and facilitate optimized blood ordering.
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Affiliation(s)
- R A Metcalf
- Division of Clinical Pathology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
- ARUP Laboratories, Salt Lake City, UT, USA
| | - M B Pagano
- Division of Transfusion Medicine, Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | - J R Hess
- Division of Transfusion Medicine, Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
- Division of Hematology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - J Reyes
- Division of Transplantation, Department of Surgery, University of Washington, Seattle, WA, USA
| | - J D Perkins
- Division of Transplantation, Department of Surgery, University of Washington, Seattle, WA, USA
| | - M I Montenovo
- Division of Transplantation, Department of Surgery, University of Washington, Seattle, WA, USA
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Pagano MB, Metcalf RA, Hess JR, Reyes J, Perkins JD, Montenovo MI. A high plasma: red blood cell transfusion ratio during liver transplantation is associated with decreased blood utilization. Vox Sang 2018; 113:268-274. [DOI: 10.1111/vox.12634] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 11/26/2022]
Affiliation(s)
- M. B. Pagano
- Laboratory Medicine; Transfusion Medicine Division; University of Washington; Seattle WA USA
| | - R. A. Metcalf
- Pathology, Transfusion Services; University of Utah and ARUP; Salt Lake City UT USA
| | - J. R. Hess
- Laboratory Medicine; Transfusion Medicine Division; University of Washington; Seattle WA USA
| | - J. Reyes
- Surgery; Transplant Surgery Division; University of Washington; Seattle WA USA
| | - J. D. Perkins
- Surgery; Transplant Surgery Division; University of Washington; Seattle WA USA
| | - M. I. Montenovo
- Surgery; Transplant Surgery Division; University of Washington; Seattle WA USA
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Reyes J, Chaffer M, Rodriguez-Lecompte JC, Sánchez J, Zadoks RN, Robinson N, Cardona X, Ramírez N, Keefe GP. Short communication: Molecular epidemiology of Streptococcus agalactiae differs between countries. J Dairy Sci 2017; 100:9294-9297. [PMID: 28918144 DOI: 10.3168/jds.2017-13363] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 06/20/2017] [Accepted: 07/30/2017] [Indexed: 01/20/2023]
Abstract
Group B Streptococcus or Streptococcus agalactiae continue to be challenging for milk quality programs in countries with emerging dairy industries, such as Colombia, where high prevalence has been reported. Molecular typing of isolates is needed to understand the variability and epidemiology of this pathogen and to develop effective control and eradication programs. We characterized the molecular profile of Strep. agalactiae isolated from cows with subclinical mastitis in 21 Colombian dairy herds and measured diversity within and between herds using multilocus sequence typing. Isolates belonged to sequence type 248 [clonal complex (CC) 103; n = 30), ST1 (CC1; n = 6) or ST22 (CC22; n = 4)], whereas members of CC67/61, the dominant type in North America, were not detected. Presence of multiple clonally unrelated sequence type within a herd was common, which contrasts with the situation in European countries and suggests introduction from multiple sources. Our results demonstrate that conclusions from molecular epidemiological studies in 1 region cannot necessarily be extrapolated to other regions, and no single bovine-adapted CC of Strep. agalactiae exists in Colombia. Improvements in internal and external biosecurity will be needed to reduce Strep. agalactiae prevalence in Colombian dairy herds.
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Affiliation(s)
- J Reyes
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada C1A 4P3; Biogenesis Research Group, Faculty of Agricultural Sciences, University of Antioquia, Calle 70 No. 52-21, C.P. 050010 Medellin, Colombia.
| | - M Chaffer
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada C1A 4P3
| | - Juan Carlos Rodriguez-Lecompte
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada C1A 4P3
| | - Javier Sánchez
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada C1A 4P3
| | - Ruth N Zadoks
- Moredun Research Institute, Penicuik, Scotland, UK, EH26 0PZ; Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, UK, G61 1QH
| | - Natasha Robinson
- Maritime Quality Milk Laboratory, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada C1A 4P3
| | | | - N Ramírez
- Epidemiology and Public Health, Centauro Research Group, Faculty of Agricultural Sciences, University of Antioquia, Calle 70 No. 52-21, C.P. 050010 Medellín, Colombia
| | - G P Keefe
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada C1A 4P3
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Reyes J, Sanchez J, Stryhn H, Ortiz T, Olivera M, Keefe GP. Influence of milking method, disinfection and herd management practices on bulk tank milk somatic cell counts in tropical dairy herds in Colombia. Vet J 2017; 220:34-39. [PMID: 28190491 DOI: 10.1016/j.tvjl.2016.12.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 08/07/2015] [Revised: 12/14/2016] [Accepted: 12/15/2016] [Indexed: 11/27/2022]
Abstract
The aims of this study were to evaluate the effects of milking method, disinfection practices and other management factors on the bulk tank milk somatic cell count (BTSCC) in tropical dairy herds and to examine potential interactions with time. One hundred and thirty farms in the Northern region of Antioquia, Colombia, were visited once per month for 24 months. A two level linear mixed model for repeated measures was used to assess the impact on log transformed BTSCC (lnBTSCC). The geometric mean of the BTSCC for all herds was 262,330 cells/mL. The two-level linear mixed model showed that lnBTSCCs in hand milked herds were significantly higher than in machine milked herds. Fore-stripping corresponded with a 27% increase in lnBTSCC and failing to post-dip corresponded with a 45% increase in lnBTSCC. The two way interactions of sampling month with milking method, singeing udders and pre-dipping were significant. The lowest predicted lnBTSCC was observed in machine milked herds that practised both pre-dipping and singeing of udders. This study suggests that milking procedures and disinfection practices can interact with time and have substantial effects on lnBTSCC.
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Affiliation(s)
- J Reyes
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island C1A 4P, Canada.
| | - J Sanchez
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island C1A 4P, Canada
| | - H Stryhn
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island C1A 4P, Canada
| | - T Ortiz
- Biogenesis Research Group, Faculty of Agricultural Sciences, University of Antioquia, Calle 70 No. 52-21, C.P. 050010 Medellin, Colombia
| | - M Olivera
- Biogenesis Research Group, Faculty of Agricultural Sciences, University of Antioquia, Calle 70 No. 52-21, C.P. 050010 Medellin, Colombia
| | - G P Keefe
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island C1A 4P, Canada
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Cacciottolo M, Wang X, Driscoll I, Woodward N, Saffari A, Reyes J, Serre ML, Vizuete W, Sioutas C, Morgan TE, Gatz M, Chui HC, Shumaker SA, Resnick SM, Espeland MA, Finch CE, Chen JC. Particulate air pollutants, APOE alleles and their contributions to cognitive impairment in older women and to amyloidogenesis in experimental models. Transl Psychiatry 2017; 7:e1022. [PMID: 28140404 PMCID: PMC5299391 DOI: 10.1038/tp.2016.280] [Citation(s) in RCA: 260] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 11/27/2016] [Indexed: 12/13/2022] Open
Abstract
Exposure to particulate matter (PM) in the ambient air and its interactions with APOE alleles may contribute to the acceleration of brain aging and the pathogenesis of Alzheimer's disease (AD). Neurodegenerative effects of particulate air pollutants were examined in a US-wide cohort of older women from the Women's Health Initiative Memory Study (WHIMS) and in experimental mouse models. Residing in places with fine PM exceeding EPA standards increased the risks for global cognitive decline and all-cause dementia respectively by 81 and 92%, with stronger adverse effects in APOE ɛ4/4 carriers. Female EFAD transgenic mice (5xFAD+/-/human APOE ɛ3 or ɛ4+/+) with 225 h exposure to urban nanosized PM (nPM) over 15 weeks showed increased cerebral β-amyloid by thioflavin S for fibrillary amyloid and by immunocytochemistry for Aβ deposits, both exacerbated by APOE ɛ4. Moreover, nPM exposure increased Aβ oligomers, caused selective atrophy of hippocampal CA1 neurites, and decreased the glutamate GluR1 subunit. Wildtype C57BL/6 female mice also showed nPM-induced CA1 atrophy and GluR1 decrease. In vitro nPM exposure of neuroblastoma cells (N2a-APP/swe) increased the pro-amyloidogenic processing of the amyloid precursor protein (APP). We suggest that airborne PM exposure promotes pathological brain aging in older women, with potentially a greater impact in ɛ4 carriers. The underlying mechanisms may involve increased cerebral Aβ production and selective changes in hippocampal CA1 neurons and glutamate receptor subunits.
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Affiliation(s)
- M Cacciottolo
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - X Wang
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - I Driscoll
- Department of Psychology, University of Wisconsin, Milwaukee, WI, USA
| | - N Woodward
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - A Saffari
- USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA
| | - J Reyes
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - M L Serre
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - W Vizuete
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - C Sioutas
- USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA
| | - T E Morgan
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - M Gatz
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
- Memory and Aging Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - H C Chui
- Memory and Aging Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Neurology, Keck School of Medicine, University of Southern California,, Los Angeles, CA, USA
| | - S A Shumaker
- Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - S M Resnick
- Laboratory of Behavioral Neuroscience, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - M A Espeland
- Division of Public Health Services, Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - C E Finch
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Memory and Aging Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - J C Chen
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Memory and Aging Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Sapisochin G, Facciuto M, Rubbia-Brandt L, Marti J, Mehta N, Yao FY, Vibert E, Cherqui D, Grant DR, Hernandez-Alejandro R, Dale CH, Cucchetti A, Pinna A, Hwang S, Lee SG, Agopian VG, Busuttil RW, Rizvi S, Heimbach JK, Montenovo M, Reyes J, Cesaretti M, Soubrane O, Reichman T, Seal J, Kim PTW, Klintmalm G, Sposito C, Mazzaferro V, Dutkowski P, Clavien PA, Toso C, Majno P, Kneteman N, Saunders C, Bruix J. Liver transplantation for "very early" intrahepatic cholangiocarcinoma: International retrospective study supporting a prospective assessment. Hepatology 2016; 64:1178-88. [PMID: 27481548 DOI: 10.1002/hep.28744] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 07/22/2016] [Indexed: 12/14/2022]
Abstract
UNLABELLED The presence of an intrahepatic cholangiocarcinoma (iCCA) in a cirrhotic liver is a contraindication for liver transplantation in most centers worldwide. Recent investigations have shown that "very early" iCCA (single tumors ≤2 cm) may have acceptable results after liver transplantation. This study further evaluates this finding in a larger international multicenter cohort. The study group was composed of those patients who were transplanted for hepatocellular carcinoma or decompensated cirrhosis and found to have an iCCA at explant pathology. Patients were divided into those with "very early" iCCA and those with "advanced" disease (single tumor >2 cm or multifocal disease). Between January 2000 and December 2013, 81 patients were found to have an iCCA at explant; 33 had separate nodules of iCCA and hepatocellular carcinoma, and 48 had only iCCA (study group). Within the study group, 15/48 (31%) constituted the "very early" iCCA group and 33/48 (69%) the "advanced" group. There were no significant differences between groups in preoperative characteristics. At explant, the median size of the largest tumor was larger in the "advanced" group (3.1 [2.5-4.4] versus 1.6 [1.5-1.8]). After a median follow-up of 35 (13.5-76.4) months, the 1-year, 3-year, and 5-year cumulative risks of recurrence were, respectively, 7%, 18%, and 18% in the very early iCCA group versus 30%, 47%, and 61% in the advanced iCCA group, P = 0.01. The 1-year, 3-year, and 5-year actuarial survival rates were, respectively, 93%, 84%, and 65% in the very early iCCA group versus 79%, 50%, and 45% in the advanced iCCA group, P = 0.02. CONCLUSION Patients with cirrhosis and very early iCCA may become candidates for liver transplantation; a prospective multicenter clinical trial is needed to further confirm these results. (Hepatology 2016;64:1178-1188).
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Affiliation(s)
- G Sapisochin
- Multi-Organ Transplant, Division of General Surgery, Toronto General Hospital, University of Toronto, Toronto, Canada.
| | - M Facciuto
- Recanati-Miller Transplantation Institute, The Mount Sinai Medical Center, New York, NY
| | - L Rubbia-Brandt
- Service de Pathologie Clinique, Faculté de Médecine, Geneva University Hospitals, Geneva, Switzerland
| | - J Marti
- Recanati-Miller Transplantation Institute, The Mount Sinai Medical Center, New York, NY
| | - N Mehta
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, CA
| | - F Y Yao
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, CA
| | - E Vibert
- Centre Hépato-Biliaire, Paul Brousse Hospital, AP-HP, Villejuif, France
| | - D Cherqui
- Centre Hépato-Biliaire, Paul Brousse Hospital, AP-HP, Villejuif, France
| | - D R Grant
- Multi-Organ Transplant, Division of General Surgery, Toronto General Hospital, University of Toronto, Toronto, Canada
| | | | - C H Dale
- Division of Transplantation, Western University, London, Canada
| | - A Cucchetti
- Department of Medical and Surgical Sciences, General and Transplant Surgery Unit, S. Orsola-Malpighi Hospital, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - A Pinna
- Department of Medical and Surgical Sciences, General and Transplant Surgery Unit, S. Orsola-Malpighi Hospital, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - S Hwang
- Hepatobiliary Surgery and Liver Transplantation, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S G Lee
- Hepatobiliary Surgery and Liver Transplantation, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - V G Agopian
- Dumont-UCLA Liver Cancer and Transplant Centers, Pfleger Liver Institute, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, CA
| | - R W Busuttil
- Dumont-UCLA Liver Cancer and Transplant Centers, Pfleger Liver Institute, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, CA
| | - S Rizvi
- Division of Transplant Surgery, William J. von Liebig Transplant Center, Mayo Clinic, Rochester, MN
| | - J K Heimbach
- Division of Transplant Surgery, William J. von Liebig Transplant Center, Mayo Clinic, Rochester, MN
| | - M Montenovo
- Department of Surgery, Division of Transplantation, University of Washington, Seattle, WA
| | - J Reyes
- Department of Surgery, Division of Transplantation, University of Washington, Seattle, WA
| | - M Cesaretti
- Department of HPB Surgery and Liver Transplant, Beaujon Hospital, Paris Diderot University-Paris 7, Paris, France
| | - O Soubrane
- Department of HPB Surgery and Liver Transplant, Beaujon Hospital, Paris Diderot University-Paris 7, Paris, France
| | - T Reichman
- Multi-Organ Transplant Institute, Ochsner Medical Center, New Orleans, LA
| | - J Seal
- Multi-Organ Transplant Institute, Ochsner Medical Center, New Orleans, LA
| | - P T W Kim
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, TX
| | - G Klintmalm
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, TX
| | - C Sposito
- Department of Surgery, G.I. Surgery, and Liver Transplantation, Istituto Nazionale Tumori, Milan, Italy
| | - V Mazzaferro
- Department of Surgery, G.I. Surgery, and Liver Transplantation, Istituto Nazionale Tumori, Milan, Italy
| | - P Dutkowski
- Swiss HPB and Transplant Center Zurich, Department of Surgery, University Hospital Zurich, Zurich, Switzerland
| | - P A Clavien
- Swiss HPB and Transplant Center Zurich, Department of Surgery, University Hospital Zurich, Zurich, Switzerland
| | - C Toso
- Division of Abdominal and Transplantation Surgery, Hepato-pancreato-biliary Centre, Geneva University Hospitals, Geneva, Switzerland
| | - P Majno
- Division of Abdominal and Transplantation Surgery, Hepato-pancreato-biliary Centre, Geneva University Hospitals, Geneva, Switzerland
| | - N Kneteman
- Division of Transplantation, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - C Saunders
- Division of Transplantation, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - J Bruix
- Barcelona Clínic Liver Cancer Group, Liver Unit, Institut d'Investigacions Biomèdiques, August Pi i Sunyer (IDIBAPS), Hospital Clínic Barcelona, CIBERehd, Barcelona, Spain.
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Zhang B, Yu J, Iordachita I, Reyes J, Liu Z, Brock M, Patterson M, Wong J, Wang K. WE-FG-BRA-06: Systematic Study of Target Localization for Bioluminescence Tomography Guided Radiation Therapy for Preclinical Research. Med Phys 2016. [DOI: 10.1118/1.4957906] [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: 11/07/2022] Open
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Asencio-Cortés G, Martínez-Álvarez F, Morales-Esteban A, Reyes J. A sensitivity study of seismicity indicators in supervised learning to improve earthquake prediction. Knowl Based Syst 2016. [DOI: 10.1016/j.knosys.2016.02.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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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Reyes J, Chaffer M, Sanchez J, Torres G, Macias D, Jaramillo M, Duque PC, Ceballos A, Keefe GP. Evaluation of the efficacy of intramuscular versus intramammary treatment of subclinical Streptococcus agalactiae mastitis in dairy cows in Colombia. J Dairy Sci 2016; 98:5294-303. [PMID: 26074229 DOI: 10.3168/jds.2014-9199] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 12/06/2014] [Accepted: 04/22/2015] [Indexed: 11/19/2022]
Abstract
A randomized controlled trial was performed in 17 Colombian dairy herds to determine the cure risk among cows subclinically infected with Streptococcus agalactiae exposed to 2 antibiotic therapies. Composite milk samples were collected before milking at the onset of the trial (pretreatment) and 2 subsequent times over a period of approximately 63 d. The intramammary application (IMM) of ampicillin-cloxacillin was compared with the intramuscular application (IM) of penethamate hydriodide, and cure risks after an initial and retreatment application were assessed. Cure risk after the initial treatment was higher (82.4%) for the IMM treatment than for IM therapy (65.8%). However, no difference was observed in the cure risk of refractory cases after retreatment (IMM=52.6% vs. IM=51.2%). The cumulative cure risk (both initial and retreatment) was 90.4 and 82.9% for the IMM and IM products, respectively. A 2-level random effects logistic model that controlled for pretreatment cow-level somatic cell count, indicated that IM treatment (odds ratio=0.37) had a lower cure risk than IMM and a tendency for a lower cure risk with increasing baseline somatic cell count. Our findings suggest that both products and administration routes can reduce the prevalence of S. agalactiae in affected herds, but the IMM product had a better efficacy in curing the infection. In addition to the treatment protocol, the cow somatic cell count should be considered when making management decisions for cows infected with S. agalactiae.
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Affiliation(s)
- J Reyes
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, C1A 4P3 Canada.
| | - M Chaffer
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, C1A 4P3 Canada
| | - J Sanchez
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, C1A 4P3 Canada
| | - G Torres
- Tropical Medicine Colombian Institute, CES University, CRA. 43A No. 52 sur-99 Medellín, Antioquia, Colombia
| | - D Macias
- Cooperativa COLANTA, CRA 64C, 72-160 Medellín, Colombia
| | - M Jaramillo
- Cooperativa COLANTA, CRA 64C, 72-160 Medellín, Colombia
| | - P C Duque
- Department of Agricultural and Livestock Sciences, Universidad de Caldas, Calle 65 #26-10, Manizales, Caldas, Colombia
| | - A Ceballos
- Department of Agricultural and Livestock Sciences, Universidad de Caldas, Calle 65 #26-10, Manizales, Caldas, Colombia
| | - G P Keefe
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, C1A 4P3 Canada
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Halldorson JB, Rayhill S, Bakthavatsalam R, Montenovo M, Dick A, Perkins J, Reyes J. Serum alkaline phosphatase and bilirubin are early surrogate markers for ischemic cholangiopathy and graft failure in liver transplantation from donation after circulatory death. Transplant Proc 2015; 47:465-8. [PMID: 25769592 DOI: 10.1016/j.transproceed.2014.10.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 10/15/2014] [Accepted: 10/28/2014] [Indexed: 01/08/2023]
Abstract
Liver transplantation with the use of donation after circulatory death (DCD) is associated with ischemic cholangiopathy (IC) often leading to graft loss. We hypothesized that serial postoperative analysis of alkaline phosphatase and bilirubin might identify patients who would later on develop ischemic cholangiopathy and/or graft loss, allowing early recognition and potentially retransplantation. The University of Washington DCD experience totals 89 DCD liver transplantations performed from 2003 to 2011 with Kaplan-Meier estimated 5-year patient and graft survival rates of 81.6% and 75.6%, respectively; 84/89 patients transplanted with DCD livers lived ≥ 60 days after transplantation and were analyzed. Serum bilirubin and alkaline phosphatase levels at 1 week, 2 week, 1 month, and 2 months after transplantation were analyzed. Two-month serum bilirubin and alkaline phosphatase proved to have the strongest associations with development of IC and graft failure. Two-month alkaline phosphatase of <100 U/L had a negative predictive value of 97% for development of IC. Two-month alkaline phosphatase demonstrated an inflection starting at >300 U/L strongly associated with development of IC (P < .0001). Serum bilirubin at 2 months was most strongly associated with graft failure within the 1st year with a strong inflection point at 2.5 mg/dL (P = .0001). All jaundiced recipients at 60 days after transplantation (bilirubin >2.5 mg/dL) developed graft failure within the 1st year (P < .0001). Use of these early surrogate markers could facilitate prioritization and early retransplantation for DCD liver recipients with allografts destined for failure.
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Affiliation(s)
- J B Halldorson
- Division of Transplantation, University of California, San Diego, California.
| | - S Rayhill
- Division of Transplantation, University of Washington, Seattle, Washington
| | - R Bakthavatsalam
- Division of Transplantation, University of Washington, Seattle, Washington
| | - M Montenovo
- Division of Transplantation, University of Washington, Seattle, Washington
| | - A Dick
- Division of Transplantation, University of Washington, Seattle, Washington
| | - J Perkins
- Division of Transplantation, University of Washington, Seattle, Washington
| | - J Reyes
- Division of Transplantation, University of Washington, Seattle, Washington
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Bastías J, Moreno J, Pia C, Reyes J, Quevedo R, Muñoz O. Effect of ohmic heating on texture, microbial load, and cadmium and lead content of Chilean blue mussel (Mytilus chilensis). INNOV FOOD SCI EMERG 2015. [DOI: 10.1016/j.ifset.2015.05.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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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Zhang B, Wang K, Iordachita I, Reyes J, Tran P, Wong J. SU-C-303-04: Evaluation of On- and Off-Line Bioluminescence Tomography System for Focal Irradiation Guidance. Med Phys 2015. [DOI: 10.1118/1.4923821] [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: 11/07/2022] Open
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Zhang B, Wang K, Iordachita I, Reyes J, Tran P, Patterson M, Wong J. PO-1067: Evaluation of on- and offline bioluminescence tomography system for focal irradiation guidance. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41059-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: 11/26/2022]
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Halldorson JB, Bakthavatsalam R, Montenovo M, Dick A, Rayhill S, Perkins J, Reyes J. Differential rates of ischemic cholangiopathy and graft survival associated with induction therapy in DCD liver transplantation. Am J Transplant 2015; 15:251-8. [PMID: 25534449 DOI: 10.1111/ajt.12962] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 01/08/2014] [Revised: 07/09/2014] [Accepted: 08/04/2014] [Indexed: 01/25/2023]
Abstract
Transplantation utilizing donation after circulatory death (DCD) donors is associated with ischemic cholangiopathy (IC) and graft loss. The University of Washington (UW) DCD experience totals 89 DCD liver transplants performed between 2003 and 2011. Overall outcome after DCD liver transplantation at UW demonstrates Kaplan-Meier estimated 5-year patient and graft survival rates of 81.6% and 75.6%, respectively, with the great majority of patient and graft losses occurring in the first-year posttransplant from IC. Our program has almost exclusively utilized either anti-thymocyte globulin (ATG) or basiliximab induction (86/89) for DCD liver transplantations. Analysis of the differential effect of induction agent on graft survival demonstrated graft survival of 96.9% at 1 year for ATG versus 75.9% for basiliximab (p = 0.013). The improved survival did not appear to be from a lower rate of rejection (21.9% vs. 22.2%) but rather a differential rate of IC, 35.2% for basiliximab versus 12.5% for ATG (p = 0.011). Multivariable analysis demonstrated induction agent to be independently associated with graft survival and IC free graft survival when analyzed against variables including donor age, fWIT, donor cold ischemia time and transplant era.
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Affiliation(s)
- J B Halldorson
- Division of Transplantation, University of California, San Diego, CA
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Chapiro J, Duran R, Reyes J, Savic L, Chettiar S, Bedja D, Ota S, Geschwind J. Targeting tumor glycolysis in pancreatic cancer - volumetric and functional tumor response assessment in an orthotopic mouse tumor model. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.066] [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] Open
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Cortijo E, García-Bermejo P, Calleja AI, Pérez-Fernández S, Gómez R, del Monte JM, Reyes J, Arenillas JF. Intravenous thrombolysis in ischemic stroke with unknown onset using CT perfusion. Acta Neurol Scand 2014; 129:178-83. [PMID: 23848212 DOI: 10.1111/ane.12160] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND Acute ischemic stroke patients with unclear onset time presenting >4.5 h from last-seen-normal (LSN) time are considered late patients and excluded from i.v. thrombolysis. We aimed to evaluate whether this subgroup of patients is different from patients presenting >4.5 h from a witnessed onset, in terms of eligibility and response to computed tomography perfusion (CTP)-guided i.v. thrombolysis. METHODS We prospectively studied consecutive acute non-lacunar middle cerebral artery (MCA) ischemic stroke patients presenting >4.5 h from LSN. All patients underwent multimodal CT and were considered eligible for i.v. thrombolysis according to CTP criteria. Two patient groups were established based on the knowledge of the stroke onset time. We compared the proportion of candidates suitable for intravenous thrombolysis between both groups, and their outcome after thrombolytic therapy. RESULTS Among 147 MCA ischemic stroke patients presenting >4.5 h from LSN, stroke onset was witnessed in 74 and unknown in 73. Thirty-seven (50%) patients in the first group and 32 (44%) in the second met CTP criteria for thrombolysis (P = 0.7). Baseline variables were comparable between both groups with the exception of age, which was higher in the unclear onset group. The rates of early neurological improvement (54.1% vs 46.9%), 2-h MCA recanalization (43.5% vs 37%), symptomatic hemorrhagic transformation (3% vs 0%) and good 3-month functional outcome (62.2% vs 56.3%) did not differ significantly between both groups. CONCLUSION Delayed stroke patients with unknown onset time were no different than patients >4.5 h regarding eligibility and response to CTP-based i.v. thrombolysis.
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Affiliation(s)
- E. Cortijo
- Stroke Unit; Department of Neurology and Medicine; Hospital Clínico Universitario; Universidad de Valladolid; Valladolid Spain
| | - P. García-Bermejo
- Stroke Unit; Department of Neurology and Medicine; Hospital Clínico Universitario; Universidad de Valladolid; Valladolid Spain
| | - A. I. Calleja
- Stroke Unit; Department of Neurology and Medicine; Hospital Clínico Universitario; Universidad de Valladolid; Valladolid Spain
| | - S. Pérez-Fernández
- Section of Neuroradiology; Department of Radiology and Medicine; Hospital Clínico Universitario; Universidad de Valladolid; Valladolid Spain
| | - R. Gómez
- Section of Neuroradiology; Department of Radiology and Medicine; Hospital Clínico Universitario; Universidad de Valladolid; Valladolid Spain
| | - J. M. del Monte
- Section of Neuroradiology; Department of Radiology and Medicine; Hospital Clínico Universitario; Universidad de Valladolid; Valladolid Spain
| | - J. Reyes
- Stroke Unit; Department of Neurology and Medicine; Hospital Clínico Universitario; Universidad de Valladolid; Valladolid Spain
| | - J. F. Arenillas
- Stroke Unit; Department of Neurology and Medicine; Hospital Clínico Universitario; Universidad de Valladolid; Valladolid Spain
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Liu H, Bakthavatsalam R, Meng Z, Li Z, Li W, Perkins JD, Reyes J. PD-L1 signal on liver dendritic cells is critical for Foxp3(+)CD4(+)CD25(+) Treg and liver tolerance induction in mice. Transplant Proc 2014; 45:1853-5. [PMID: 23769057 DOI: 10.1016/j.transproceed.2013.03.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 02/26/2013] [Accepted: 03/04/2013] [Indexed: 02/07/2023]
Abstract
Allogeneic liver transplantation induces spontaneous tolerance in mice without a requirement for immunosuppression. The underling mechanisms remain unclear. Our recent studies indicated that Foxp3(+)CD25(+)CD4(+) regulatory T (Treg) cells play an important role in the induction of spontaneous transplant tolerance. How Treg cells are induced and their functional mechanisms to regulate the response remain undefined. In this study, we employed a mouse liver transplant model using PD-L1-/-, and Flt3L-/- mice to critically examine the role of liver dendritic cells (DCs) and the PD-L1 signal in Treg induction. Our results showed that liver DCs, which expressed a great number of PD-L1 molecules, induced more Foxp3(+)CD25(+)CD4(+) Treg in vitro upon coculture with allogeneic CD4 T cells compared with spleen DCs. The DCs from PD-L1-deficient mice failed to expand Foxp3(+)CD25(+)CD4(+) Treg in vitro. Adoptive transfer of Foxp3(+)CD25(+)CD4(+)Treg expanded from liver DCs prolonged heart allograft survival significantly greater than spleen cell controls. Moreover, liver grafts from Flt3L-/- and PD-L1-/- mice were rejected acutely in C3H recipients. Immunohistochemistry revealed reduced Foxp3(+) cells and significantly increased IL-2, IL-10, and IFN-γ producing elements in the liver grafts and recipient spleens of Flt3L-/- and PD-L1-/- donors. In conclusion, liver DCs play a critical role in the induction of Foxp3(+)CD25(+)CD4(+) Treg, which may mediate spontaneous acceptance of MHC-mismatched liver allografts in mice. The effects of DCs on Foxp3(+)CD25(+)CD4(+) Treg induction and expansion appear to depend on the PD-L1 signal.
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Affiliation(s)
- H Liu
- Department of Hepatobiliary-Pancreatic Surgery, Third Hospital (China-Japan Union Hospital) of Jilin University, Changchun, China
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Agudelo V, Bobo A, Reyes J, Ruiz M, Belinchón B, Miralles L, Manso Á, Mañas A. An analysis of the treatment of aggressive fibromatosis: Review of cases. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.576] [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: 10/26/2022] Open
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Atala E, Velásquez G, Vergara C, Mardones C, Reyes J, Tapia RA, Quina F, Mendes MA, Speisky H, Lissi E, Ureta-Zañartu MS, Aspée A, López-Alarcón C. Mechanism of Pyrogallol Red Oxidation Induced by Free Radicals and Reactive Oxidant Species. A Kinetic and Spectroelectrochemistry Study. J Phys Chem B 2013; 117:4870-9. [DOI: 10.1021/jp400423w] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- E. Atala
- Departamento de Farmacia, Facultad
de Química, Pontificia Universidad Católica de Chile
| | - G. Velásquez
- Departamento de Ciencias del
Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile
| | - C. Vergara
- Facultad de Farmacia, Universidad de Concepción, Chile
| | - C. Mardones
- Facultad de Farmacia, Universidad de Concepción, Chile
| | - J. Reyes
- Departamento de Farmacia, Facultad
de Química, Pontificia Universidad Católica de Chile
| | - R. A. Tapia
- Departamento de Química
Orgánica, Facultad de Química, Pontificia Universidad Católica de Chile
| | - F. Quina
- Instituto de Química, Universidad de Sao Paulo, Sao Paulo, Brazil
| | - M. A. Mendes
- Instituto de Química, Universidad de Sao Paulo, Sao Paulo, Brazil
| | - H. Speisky
- Instituto de Nutrición y Tecnología
de los Alimentos, INTA, Universidad de Chile
| | - E. Lissi
- Departamento de Ciencias del
Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile
| | - M. S. Ureta-Zañartu
- Departamento de Ciencias del
Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile
| | - A. Aspée
- Departamento de Ciencias del
Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile
| | - C. López-Alarcón
- Departamento de Farmacia, Facultad
de Química, Pontificia Universidad Católica de Chile
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Rivera-Zambrano L, Reyes J, Calero F, Ballarín J, Fernández-Llama P. El uso de nuevas técnicas para el diagnóstico de recidiva del feocromocitoma. Hipertensión y Riesgo Vascular 2012. [DOI: 10.1016/j.hipert.2012.07.004] [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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Reyes J, Silva I, Pérez T, Corvo F, Martínez W, Alonso-Guzmán EM, Quintana P. El deterioro del Baluarte de San Pedro, un estudio de caso. Revista de la Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción 2012. [DOI: 10.21041/ra.v2i3.35] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
RESUMENEl centro histórico de la ciudad de San Francisco de Campeche, México, cuenta con edificios civiles y militares de la época colonial, los cuales se encuentran sometidos a la acción de agentes ambientales como humedad, radiación solar, temperatura, erosión eólica, acción biológica y productos de origen antropogénico que inducen su deterioro. El objetivo del presente estudio fue diagnosticar el daño y posible origen de costras negras en el Baluarte de San Pedro, edificio representativo del sistema defensivo de la ciudad. Las patologías de deterioro y el análisis mediante difracción de Rayos X realizado en muestras representativas del edificio indican la presencia de yeso en los muros sur y suroeste del Baluarte. Lo anterior es indicio de la acción de emisiones de vehículos automotores que circulan diariamente sobre las avenidas circundantes. Por otra parte, existe abundante colonización microbiana cuya actividad se relaciona con la presencia de oxalatos de calcio, compuestos característicos de procesos de biodeterioro.Palabras Clave: Deterioro; edificios históricos; San Francisco de Campeche; Baluarte de San Pedro; biodeterioro.ABSTRACTThe downtown of San Francisco de Campeche, México, has several civilian and militarian ancient buildings dating from the Hispanic colonization. These buildings are exposed to environmental agents such as high relative humidity and temperature, sun radiation, wind erosion, biologic action and anthropogenic products, which produce their deterioration. The objective of this paper is to present and discuss the diagnosis of deterioration of the San Pedro bastion as well as the possible origin of black crusts observed over the walls. Visual inspection and X Ray Diffraction analysis detected gypsum at south and southwest walls, which is indicative of the action of combustion products of vehicles circulation over neighboring avenues. Moreover, it was observed abundant microbial colonization, which activity is related to the presence of calcium oxalates that are evidence of a bio-deterioration process.Keywords: Deterioration; historic buildings; San Francisco de Campeche; Bastion of San Pedro; biodeterioration.
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Chen N, Kasserra C, Reyes J, Liu L, Lau H. Single-dose pharmacokinetics of lenalidomide in healthy volunteers: dose proportionality, food effect, and racial sensitivity. Cancer Chemother Pharmacol 2012; 70:717-25. [PMID: 22955172 DOI: 10.1007/s00280-012-1966-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 08/12/2012] [Indexed: 11/29/2022]
Abstract
PURPOSE Lenalidomide is an immunomodulatory drug with efficacy in various hematological malignancies. The purpose of these studies was to evaluate the single-dose pharmacokinetics of lenalidomide, including dose proportionality, food effect, and racial sensitivity. METHODS Three studies were conducted including a total of 58 healthy subjects: a randomized, single-blind, alternating group, single-ascending dose study; a randomized, two-way crossover food effect study; and a randomized, double-blind, two-group, within-subject, single-ascending dose study. RESULTS Oral absorption of lenalidomide was rapid and the maximum plasma concentration (C (max)) was observed approximately 1 h post-dose. Co-administration with a high-fat meal reduced the area under the concentration-time curve (AUC) and C (max) by approximately 20 and 50 %, respectively, and delayed time to C (max) (t (max)) by 1.63 h. However, phase III trials were dosed without regard to food; therefore, clinical relevance of the food effect was minimal. The terminal elimination half-life (t (½)) was 3-4 h at doses up to 50 mg and was not affected by food. The AUC and C (max) were proportional to lenalidomide single doses (5-400 mg), and total and renal clearance were dose-independent. The R- to S-lenalidomide ratio in plasma was stable over time, approximately 45-55 % of total drug. There were no differences in pharmacokinetic parameters, dose-exposure relationship, or enantiomeric ratio, between Japanese and Caucasian subjects. CONCLUSION Lenalidomide displayed linear pharmacokinetics from doses 5-400 mg in healthy subjects. Although food reduced bioavailability, this was not considered clinically relevant. Lenalidomide was generally well tolerated in both ethnic groups.
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Affiliation(s)
- N Chen
- Department of Clinical Pharmacology, Translational Development, Celgene Corporation, Summit, NJ, USA.
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Luis J, Cadena C, Zedillo B, Reyes J, Ramos G, Martínez M. Testosterone replacement induced paternal behaviour in the Mexican volcano mouseNeotomodon alstoni(Rodentia Muridae). ETHOL ECOL EVOL 2012. [DOI: 10.1080/03949370.2012.661374] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Loh ZY, Yap CW, Anantharaman V, How P, Hirata M, Aizawa K, Yogo K, Tashiro Y, Takeda S, Endo K, Fukagawa M, Serizawa KI, Fujii H, Fujii H, Kono K, Nakai K, Goto S, Hirata M, Shinohara M, Kitazawa R, Kitazawa S, Fukagawa M, Nishi S, Oruc A, Korkmaz S, Bal O, Yilmaztepe Oral A, Ersoy A, Gullulu M, Ketteler M, Martin K, Amdahl M, Cozzolino M, Goldsmith D, Sharma A, Khan S, Ketteler M, Martin K, Amdahl M, Cozzolino M, Goldsmith D, Sharma A, Khan S, Chitalia N, Afzali B, Edozie F, Manghat P, Wierzbicki A, Hampson G, Goldsmith D, Corradini M, Iannuzzella F, Manenti L, Ciarrocchi A, Albertazzi L, Somenzi D, Pasquali S, Calabria Baxmann A, Barcellos Menon V, Froeder L, Medina-Pestana JO, Barbosa Carvalho A, Pfeferman Heilberg I, Sola L, De Souza N, Flores J, Perico N, Yuste C, Garcia DE Vinuesa MS, Luno J, Goicoechea MA, Barraca D, Panizo N, Quiroga B, Kim SM, Kwon SK, Kim HY, Cournoyer S, Bell R, Berbiche D, Menard L, Viaene L, Evenepoel P, Meijers B, Overbergh L, Mathieu C, Pasquali M, Rotondi S, Conte C, Pirro G, Mazzaferro S, Frasheri A, Marangella M, Tartaglione L, Park JS, Koo TY, Kim GH, Kang CM, Lee CH, Hiemstra TF, Casian A, Boraks P, Jayne D, Schoenmakers I, Schmiedeke B, Niemann M, Schmiedeke D, Davydenko I, Emmert A, Pilz S, Obermayer-Pietsch B, Weidemann F, Breunig F, Wanner C, Drechsler C, Shiizaki K, Ito C, Onishi A, Nakazawa E, Ogura M, Kusano E, Ermolenko V, Mikhaylova N, Mikhaylova N, Vartanjan K, Levchuk D, Dobrina E, Capusa C, Stancu S, Maria D, Vladu I, Barsan L, Garneata L, Mota E, Mircescu G, Capusa C, Stancu S, Barsan L, Ilyes A, Dorobantu N, Petrescu L, Mircescu G, Martinez-Gallardo R, Martinez-Gallardo R, Ferreira F, Garcia-Pino G, Luna E, Caravaca F, De Jager DJ, Grootendorst DC, Postmus I, De Goeij MCM, Boeschoten EW, Sijpkens YWJ, Dekker FW, Halbesma N, Wuthrich RP, Covic A, Gaillard S, Rakov V, Louvet L, Buchel J, Steppan S, Passlick-Deetjen J, Massy ZA, Akalin N, Akalin N, Altiparmak MR, Trabulus S, Yalin AS, Seyahi N, Ataman R, Serdengecti K, Donate-Correa J, Martinez-Sanz R, Muros-de-Fuentes M, Garcia J, Garcia P, Cazana V, Mora-Fernandez C, Navarro-Gonzalez JF, Chitalia N, Afzali B, Edozie F, Manghat P, Wierzbicki A, Hampson G, Goldsmith D, Berutti S, Marranca D, Soragna G, Erroi L, Migliardi M, Marangella M, Corradini M, Iannuzzella F, Belloni L, Somenzi D, Parmeggiani M, Pasquali S, Camerini C, Pezzotta M, Zani R, Movilli E, Cancarini G, Anwar S, Pruthi R, Kenchayikoppad S, Reyes J, Dasilva I, Furlano M, Calero F, Montanes R, Ayasreh N, Del Pozo M, Estorch M, Rousaud F, Ballarin JA, Bover J, Resende A, Dias CB, Dos Reis L, Jorgetti V, Woronik V, Panuccio V, Panuccio V, Enia G, Tripepi R, Cutrupi S, Pizzini P, Aliotta R, Zoccali C, Yildiz I, Sagliker Y, Demirhan O, Tunc E, Inandiklioglu N, Tasdemir D, Acharya V, Zhang L, Golea O, Sabry A, Ookalkar D, Capusa C, Radulescu D, Garneata L, Mircescu G, Ben Maiz H, Chen CH, Rome JP, Benzegoutta M, Paylar N, Eyupoglu K, Karatepe E, Esenturk M, Yavascan O, Grzegorzevska A, Shilo V, M-Mazdeh M, Francesco RC, Gouda Z, Adam SM, Emir I, Ocal F, Usta E, Kiralp N, Sagliker C, S Ozkaynak P, Sagliker HS, Bassuoni M, El-Wakil HS, Akar H, Yenicerioglu Y, Kose E, Sekin O. Mineral and bone disease - CKD 1-5. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs219] [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: 11/14/2022] Open
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Ford E, Achanta P, Reyes J, Redmond K, Wong J, Quinones-Hinojosa A. 332 LOCALIZED RADIATION DISRUPTS THE MIGRATION OF NEURAL PROGENITOR CELLS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70290-6] [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: 11/24/2022]
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Reyes J, Seerup J, Sano A, Hawkins D, Gorospe G, Mbogo W, Choe T. A “Road Map” to Create a Standardized, Defect Free Hematopoietic Cell Transplant (HCT) Schedule Utilizing Lean Methodology – A3 Thinking. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.554] [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: 10/14/2022]
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Perez M, Norcliffe-Kaufmann L, Reyes J, Axelrod F, Kaufmann H. Is end-tidal CO2 a valid measurement to assess hypoventilation in patients with familial dysautonomia? Auton Neurosci 2011. [DOI: 10.1016/j.autneu.2011.05.196] [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: 11/16/2022]
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Rayhill S, Schwartz J, Ham J, Carithers R, Lei Y, Bhattacharya R, Liou I, Landis C, Lamaye A, Rakita R, Dick A, Healey P, Halldorson J, Bhakthavatsalam R, Perkins J, Reyes J. The use of hepatitis B core antibody-positive donor livers does not appear to have a deleterious effect on graft survival in liver transplantation for hepatitis C. Transplant Proc 2011; 42:4141-4. [PMID: 21168646 DOI: 10.1016/j.transproceed.2010.09.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Accepted: 09/09/2010] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The use of hepatitis B core antibody-positive donor livers (HBcAb(+)) has steadily increased. According to a recent multivariate analysis of United Network for Organ Sharing (UNOS) data, there was no significant increase in the risk of using these donors. The increased risk among the hepatitis C virus (HCV)-positive subgroup noted in a univariate model disappeared upon multivariate analysis. However, deeper scrutiny may show that HCV-positive recipients may be at increased risk with HBcAb(+) donor livers, as they require simultaneous treatment with two antiviral regimens there may be deleterious interactions between the two viruses. Thus, the issue of HBcAb(+) donors for HCV-positive recipients merits more detailed analysis. METHODS Using UNOS registry data of all liver transplantations performed during the Model for End-Stage Liver Disease era from February 2002 through November 2007, we analyzed graft survival using Kaplan-Meier and Cox regression analyses. RESULTS Of the 12,543 HCV-positive recipients, 2,543 received HBcAb(-) livers and 853 received HBcAb(+) livers. While Kaplan-Meier analysis showed significantly lower graft survival among HCV-negative recipients of HBcAb(+) livers (P = .0001), there was no significant effect on graft survival among the HCV-positive population (P = .2). To detect an early effect in HCV-positive recipients, we examined 1-year graft survival, observing no significant difference (P = .3). To exclude a possible late effect, we examined graft survival in the HCV-positive population conditional upon surviving at least 1 year after transplantation; no significant difference was observed (P = .6). The elimination of potentially confounding codiagnoses, such as hepatitis B virus, alcoholism, acute graft failure, and hepatocellular cancer did not alter the findings. On univariate analysis, the lack of a significant effect persisted among the HCV population. However, the significant effect observed in the univariate model for the HCV-negative population became insignificant when combined with other risk factors in the multivariate model. CONCLUSION The use of HBcAb(+) livers in recipients with HCV did not appear to have a significant impact on graft survival.
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Affiliation(s)
- S Rayhill
- Department of Surgery, University of Washington, Seattle, Washington 98195-6175, USA.
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Ford EC, Achanta P, Purger D, Armour M, Reyes J, Fong J, Kleinberg L, Redmond K, Wong J, Jang MH, Jun H, Song HJ, Quinones-Hinojosa A. Localized CT-guided irradiation inhibits neurogenesis in specific regions of the adult mouse brain. Radiat Res 2011; 175:774-83. [PMID: 21449714 DOI: 10.1667/rr2214.1] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Radiation is used in the study of neurogenesis in the adult mouse both as a model for patients undergoing radiation therapy for CNS malignancies and as a tool to interrupt neurogenesis. We describe the use of a dedicated CT-guided precision device to irradiate specific sub-regions of the adult mouse brain. Improved CT visualization was accomplished with intrathecal injection of iodinated contrast agent, which enhances the lateral ventricles. T2-weighted MRI images were also used for target localization. Visualization of delivered beams (10 Gy) in tissue was accomplished with immunohistochemical staining for the protein γ-H2AX, a marker of DNA double-strand breaks. γ-H2AX stains showed that the lateral ventricle wall could be targeted with an accuracy of 0.19 mm (n = 10). In the hippocampus, γ-H2AX staining showed that the dentate gyrus can be irradiated unilaterally with a localized arc treatment. This resulted in a significant decrease of proliferative neural progenitor cells as measured by Ki-67 staining (P < 0.001) while leaving the contralateral side intact. Two months after localized irradiation, neurogenesis was significantly inhibited in the irradiated region as seen with EdU/NeuN double labeling (P < 0.001). Localized radiation in the rodent brain is a promising new tool for the study of neurogenesis.
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Affiliation(s)
- E C Ford
- Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA.
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Tuli R, Surmak A, Blackford A, Reyes J, Leubner A, Zhang Y, Zhou H, Jaffee E, DeWeese T, Herman J. Poly (ADP Ribose) Polymerase Inhibition with ABT-888 Alone and in Combination with Gemcitabine Enhances Radiosensitization of Pancreatic Cancer Cells. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1521] [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: 10/19/2022]
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Mazariegos GV, Salzedas AA, Zavatsky J, Sindhi R, Parizhskaya M, McGhee W, Jain A, Reyes J. Long term management of liver transplant rejection in children. BioDrugs 2010; 14:31-48. [PMID: 18034554 DOI: 10.2165/00063030-200014010-00004] [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: 01/16/2023]
Abstract
The current management of hepatic allograft rejection after liver transplantation in children requires effective baseline immunosuppression to prevent rejection and rapid diagnosis and treatment to manage acute rejection episodes. The subsequent impact on chronic rejection is dependent on the combination of adequate prevention and the treatment of acute rejection. Tacrolimus is a macrolide lactone that inhibits the signal transduction of interleukin-2 (IL-2) via calcineurin inhibition. Introduced in 1989, tacrolimus was first used in the salvage of refractory acute or chronic rejection under cyclosporin or to rescue patients with significant cyclosporin-related complications. The majority of paediatric transplant centres use a combination of steroids with tacrolimus as a basic immunosuppressant regimen following paediatric liver transplantation. This combination has allowed the acute cellular rejection-free rate to increase to between 30 and 60%, while lowering the rate of refractory rejection to less than 5%. Corticosteroid-resistant rejection is commonly treated with monoclonal (muromonab CD3) or polyclonal preparations. Although most episodes of acute cellular rejection occur during the first 6 weeks after liver transplant, the appearance of late acute liver allograft rejection must raise the question of noncompliance, especially in the adolescent population. Chronic rejection is becoming increasingly rare under tacrolimus-based immunosuppression. Tacrolimus is effective in reversing refractory acute cellular rejection or early chronic rejection in patients initially treated with cyclosporin-based regimens. Patients with a history of noncompliance as well as children with autoimmune liver disease are at risk of chronic rejection. Retransplantation therapy for chronic rejection has, fortunately, become more rare in the tacrolimus era with only 3% of retransplants being performed for this indication. Newer immunosuppressive agents are further modifying the long term management of liver allograft rejection. These include mycophenolate mofetil, rapamycin and IL-2 antibodies such as daclizumab. The development of these agents is allowing patient-specific immunosuppressive management to minimise rejection as well as the complications related to immunosuppression.
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Affiliation(s)
- G V Mazariegos
- University of Pittsburgh Medical Center, Department of Surgery, Thomas E. Starzl Transplantation Institute, Pittsburgh, Pennsylvania 15213, USA.
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Reyes J. Health risk determinants among freshmen students of the University of Santo Tomas. J Sci Med Sport 2010. [DOI: 10.1016/j.jsams.2009.10.309] [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: 10/19/2022]
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Aluja M, Díaz-Fleischer F, Boller EF, Hurter J, Edmunds AJF, Hagmann L, Patrian B, Reyes J. Application of feces extracts and synthetic analogues of the host marking pheromone of Anastrepha ludens significantly reduces fruit infestation by A. obliqua in tropical plum and mango backyard orchards. J Econ Entomol 2009; 102:2268-2278. [PMID: 20069857 DOI: 10.1603/029.102.0632] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We determined the efficacy of three potential oviposition deterrents in reducing fruit infestation by Anastrepha obliqua in tropical plum and mango orchards. These were: (1) Extracts of feces of Mexican fruit fly, Anastrepha ludens, known to contain the A. ludens host marking pheromone (HMP) and (2) two fully synthetic simplified analogues of the naturally occurring compound, which we have named desmethyl A. ludens HMP (DM-HMP) and Anastrephamide. Two applications of feces extracts 2 or 3 wk before fruit color break reduced A. obliqua infestation in plums by 94.1, 75.9, and 72% when measured 8, 14, and 25 d, respectively, after application. The natural A. ludens-HMP containing extract retained its effectiveness despite considerable rainfall (112.5 mm) and high A. obliqua populations. The synthetic desmethyl HMP derivative (DM-HMP) also reduced infestation in plums by 53.3 and 58.7% when measured, 18 and 26 d, respectively, after application. Finally, applications of Anastrephamide resulted in fruit loss cut by half and an 80% reduction in numbers of fly larvae per fruit. Our results confirm previous findings indicating that there is interspecific cross-recognition of the HMP in two of the most pestiferous Anastrepha species and open the door for the development of a highly selective, biorational Anastrepha management scheme.
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Affiliation(s)
- Martín Aluja
- Instituto de Ecología, Xalapa, Veracruz, Mexico.
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Stoyanova E, Sandoval SB, Zuniga LA, El-Yamani N, Coll E, Pastor S, Reyes J, Andres E, Ballarin J, Xamena N, Marcos R. Oxidative DNA damage in chronic renal failure patients. Nephrol Dial Transplant 2009; 25:879-85. [DOI: 10.1093/ndt/gfp575] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Redmond K, Grossman S, Achanta P, Armour M, Reyes J, Kleinberg L, Quinones-Hinojosa A, Ford E. Neural Progenitor Cell (NPC) Sparing Radiation Therapy: Clinical Feasibility and Validation with a Mouse Model. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.305] [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: 11/30/2022]
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Ford E, Achanta P, Armour M, Reyes J, Kleinberg L, Quinones-Hinojosa A. TH-C-BRC-01: Precision Localized Radiation to Ablate Progenitor Cells in the Mouse Brain. Med Phys 2009. [DOI: 10.1118/1.3182615] [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: 11/07/2022] Open
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