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Lopez-Mendoza, Javier,Vargas-Flores, Edgar,Mouneu-Ornelas, Nicole,Altamirano-Arcos, Carlos Korean Society of Plastic and Reconstructive Surge 2021 Archives of Plastic Surgery Vol.48 No.4
Background The result of illicit polymer injection is chronic inflammation with foreign-body granuloma (FBG) formation. Treatment can be divided into medical and surgical. Some patients develop severe complications with need surgical treatment. This study aims to describe patients who underwent surgical removal of the FBGs and autoimmune/inflammatory syndrome induced by adjuvants (ASIA); additionally, we evaluated the quality of life after surgery. Methods In this retrospective single-center study, the authors examined data of patients who underwent surgical removal of FBG caused by illicit polymer injection for cosmetic purposes and confirmed ASIA from 2015 to 2020 by three different surgical approaches. Descriptive summary statistics were reported on patient demographics, presenting symptoms and clinical examination features, treatment strategies, histopathology reports and quality of life. Results The cohort included 11 female patients with FBGs and ASIA. The most affected anatomical zones were the combination of gluteal region, thighs and legs (40%); and thighs with legs (20%). Main presentation was: skin hyperpigmentation (90.9%), skin induration (63.6%), chronic fatigue (63.6%), and ulcers (36.4%). Surgical modalities consisted of: ultrasonic-assisted liposuction in four patients (36.4%); open en bloc excision and primary closure in four patients (36.4%); and open en bloc excision and microsurgical reconstruction in three patients (27.2%). The postoperative quality of life visual analog scale score was 83.9. Conclusions ASIA treatment represents a challenge for the plastic surgeon. Adequate surgical treatment emphasizing, when possible, the total or near-total resection of the FBG must be performed to improve ASIA evolution.
Ayon-Reyna, Lidia Elena,Lopez-Valenzuela, Jose Angel,Delgado-Vargas, Francisco,Lopez-Lopez, Martha Edith,Molina-Corral, Francisco Javier,Carrillo-Lopez, Armando,Vega-Garcia, Misael Odin The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.6
Anthracnose of papaya fruit caused by the fungus Colletotrichum gloeosporioides is one of the most economically important postharvest diseases. Hot water immersion (HW) and calcium chloride (Ca) treatments have been used to control papaya postharvest diseases; however, the effect of the combination HW-Ca on the pathogen growth and the development of the disease in infected papaya fruit has been scarcely studied. The aim of this study was to evaluate the effect of the HW-Ca treatment on the in vitro growth of C. gloesporioides conidia and the quality of infected papaya. In vitro, the HW-Ca treated conidia showed reduced mycelial growth and germination. In vivo, the HW-Ca treatment of infected papaya delayed for 5 days the onset of the anthracnose symptoms and improved the papaya postharvest quality. The combined treatment HW-Ca was better than any of the individual treatments to inhibit the in vitro development of C. gloeosporioides and to reduce the negative effects of papaya anthracnose.
Tommaso Giuliani,Maria Lopez Rubio,Eva Montalva Oron,Javier Maupoey Ibanez,Andrea Bosca Robledo,Cecilia Lopez Valdivia,Judith Perez Rojas,Rafael Lopez Andujar 한국간담췌외과학회 2020 Annals of hepato-biliary-pancreatic surgery Vol.24 No.1
Indications and outcomes of extended pancreatectomies have been recently appraised by the International Study Group for Pancreatic Surgery. However, no definitive conclusions have been drawn, particularly in the setting of neoadjuvant treatments. We present here a case of 53-year-old man diagnosed with a bulky adenocarcinoma of the tail of the pancreas and infiltrating the adjacent organs and the thoracic wall. The patient was sent to neoadjuvant chemotherapy and he underwent 12 cycles of FOLFIRINOX. Since a significant radiological response was observed after chemotherapy, the patient was scheduled for extended distal pancreatectomy with en bloc resection of the thoracic wall, in order to achieve a radical resection. The surgery is herein described with all technical details. The patient was discharged after an uneventful early post-operative course and subsequently readmitted for a late grade B post-operative pancreatic fistula, which was ultimately treated successfully. Pathology showed complete response. When performed in centers with ample experience in pancreatic surgery, extended pancreatic resections represent a viable curative option with acceptable surgical outcomes. In this setting, challenging tailored resections should be considered to achieve negative margins, particularly following maximized effective downstaging strategies.
Nunez-Ramirez, Diola Marina,Medina-Torres, Luis,Valencia-Lopez, Jose Javier,Calderas, Fausto,Lopez-Miranda, Javier,Medrano-Roldan, Hiram,Solis-Soto, Aquiles The Korean Society for Microbiology and Biotechnol 2012 Journal of microbiology and biotechnology Vol.22 No.11
Fermentation with filamentous fungi in a bioreactor is a complex dynamic process that is affected by flow conditions and the evolution of the rheological properties of the medium. These properties are mainly affected by the biomass concentration and the morphology of the fungus. In this work, the rheological properties of a fermentation with the fungus Beauveria bassiana under different hydrodynamic conditions were studied and the rheological behavior of this broth was simulated through a mixture of carboxymethyl cellulose sodium and cellulose fibers (CMCNa-SF). The bioreactor was a 10 L CSTR tank operated at different stir velocities. Rheological results were similar at 100 and 300 rpm for both systems. However, there was a significant increase in the viscosity accompanied by a change in the consistence index, calculated according to the power law model, for both systems at 800 rpm. The systems exhibited shear-thinning behavior at all stir velocities, which was determined with the power law model. The mixing time was observed to increase as the cellulose content in the system increased and, consequently, the efficiency of mixing diminished. These results are thought to be due to the rheological and morphological similarities of the two fungal systems. These results will help in the optimization of scale-up production of these fungi.
Surgical management with intentional replantation on a tooth with palato-radicular groove
Forero-Lopez, Jorge,Gamboa-Martinez, Luis,Pico-Porras, Laura,Nino-Barrera, Javier Laureano The Korean Academy of Conservative Dentistry 2015 Restorative Dentistry & Endodontics Vol.40 No.2
A palato-radicular groove (PRG) is a developmental anomaly primarily found in the maxillary lateral incisors. It is a potential communication path between the root canal and the periodontium that decreases the survival prognosis of the affected tooth, therefore compromising the stability of the dental structure in the oral cavity. The aim of this case report is to present an original technique where a PRG was treated by means of intracanal disinfection, PRG sealing with glass ionomer, replantation with intentional horizontal 180 degree rotation of the tooth, and an aesthetic veneer placed to provide adequate tooth morphology. The clinical and biological benefits of this novel technique are presented and discussed.
Catalytic steam reforming of biomass fast pyrolysis volatiles over Ni–Co bimetallic catalysts
Laura Santamaria,Gartzen Lopez,Aitor Arregi,Maite Artetxe,Maider Amutio,Javier Bilbao,Martin Olazar 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.91 No.-
The influence of the metal selected as catalytic active phase in the two-step biomass pyrolysis-catalyticreforming strategy has been analyzed. The pyrolysis step was carried out in a conical spouted bed reactorat 500 C, whereas steam reforming was performed in afluidized bed reactor at 600 C. Ni/Al2O3,Co/Al2O3 and two bimetallic Ni-Co/Al2O3 catalysts with different metal loadings were synthesized by wetimpregnation method, and fresh and deactivated catalysts were characterized by N2 adsorption/desorption, X-ray Fluorescence (XRF), Temperature Programmed Reduction (TPR), X-Ray powderDiffraction (XRD), Temperature Programmed Oxidation (TPO), Scanning Electron Microscopy (SEM) andTransmission Electron Microscopy (TEM). Although Ni/Al2O3 and both bimetallic catalysts had similarinitial activity in terms of oxygenate conversion, (higher than 98%), the poorer metal dispersion observedin both bimetallic catalysts led to a fast decrease in conversion due to the promotion of coke formation onlarge particles. This occurred even though Ni–Co alloy formation has a positive influence by hindering theoxidation of Co0 species. The main cause for the deactivation of these catalysts is the formation of a cokewith amorphous structure. The poor initial performance of Co/Al2O3 catalyst is related to changes in theCo0 oxidation state induced by the presence of steam, which led to a fast deactivation of this catalyst.
Regenerability of a Ni catalyst in the catalytic steam reforming of biomass pyrolysis volatiles
Aitor Arregi,Gartzen Lopez,Maider Amutio,Itsaso Barbarias,Laura Santamaria,Javier Bilbao,Martin Olazar 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.68 No.-
A study has been carried out of the regenerability of a commercial Ni catalyst used in the steam reforming of the volatiles from biomass pyrolysis (gases and bio-oil), determining the evolution of the reaction indices (conversion, product yields and H2 production) in successive reaction–regeneration cycles. The causes of catalyst deactivation (coke deposition and Ni sintering) have been ascertained characterizing the deactivated and regenerated catalysts by TPO, TEM, TPR and XRD. Catalyst activity is not fully recovered by coke combustion in the first cycles due to the irreversible deactivation by Ni sintering, but the catalyst reaches a pseudo-stable state beyond the fourth cycle, reproducing its behaviour in subsequent cycles.
Poster Session : PS 0633 ; Respiratory Medicine ; COPD and Percutaneous Coronary Intervention
( Pavel Alexei Chisholm Sanchez ),( Javier De Miguel Diez ),( Diego Jose Castrillon Rodriguez ),( Rodrigo Jimenez Garcia ),( Valentin Hernandez Barrera ),( Pilar Carrasco Garrido ),( Ana Lopez De Andr 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
Background: To compare trends in the use and outcomes of PCI in patients COPD and non COPD patients in Spain from 2001 to 2011. Methods: We identifi ed all patients who had undergone PCI, using national hospital discharge data. Discharges were divided, according to history of COPD, in 2 groups: COPD and non COPD. The incidence of discharges attributed to percutaneous coronary intervention were calculated and stratifi ed by COPD status. We calculated comorbidity Charlson Comorbidity Index (CCI), length of stay (LOS) and in-hospital mortality (IHM). Results: From 2001 to 2011, 434,108 PCI´s were performed. The incidence of use of PCI increased over time in both groups (p<0.05), COPD and non COPD, from 4.94 per 100,000 inhabitants in 2001 to 11.76 in 2011 in COPD, and from 87.74 to 177.56 in non COPD. Comorbidity increased signifi cantly in both groups (p<0.05). The average LOS decreased signifi cantly over time, from 9 (IQR 10) days in 2001 to 6 (IQR 6) days in COPD patients, and from 6 (IQR 9) days in 2001 to 5 (IQR 6) days in patients without COPD. IHM changed signifi cantly over the entire study period among patients with COPD (from 2.65% in 2001 to 2.66% in 2011, p<0,05, x2 linear trend analysis) and non COPD (from 1.92% in 2001 to 1.85% in 2011, p<0,05, x2 linear trend analysis). Conclusions: The incidence of use of PCI procedures increased over time in COPD and non COPD patients. Increasing comorbidity can be associated with a higher use of PCI procedures. LOS and IHM were higher in patients with COPD than in those without this disease.
Feasibility of Societal Model for Securing Internet of Things
( Hiroshi Tsunoda ),( Rodrigo Roman ),( Javier Lopez ),( Glenn Mansfield Keeni ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.8
In the Internet of Things (IoT) concept, devices communicate autonomously with applications in the Internet. A significant aspect of IoT that makes it stand apart from present-day networked devices and applications is a) the very large number of devices, produced by diverse makers and used by an even more diverse group of users; b) the applications residing and functioning in what were very private sanctums of life e.g. the car, home, and the people themselves. Since these diverse devices require high-level security, an operational model for an IoT system is required, which has built-in security. We have proposed the societal model as a simple operational model. The basic concept of the model is borrowed from human society - there will be infants, the weak and the handicapped who need to be protected by guardians. This natural security mechanism works very well for IoT networks which seem to have inherently weak security mechanisms. In this paper, we discuss the requirements of the societal model and examine its feasibility by doing a proof-of-concept implementation.