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Gonzalez-Cabrera Jaime,Moreno-Carrillo Gabriel,Lopez-Juarez Alejandro A.,Anguiano-Amezcua Juan A.,Sanchez-Gonzalez Jorge A.,Mendoza-Ceballos Mario Y.,Arredondo-Bernal Hugo C. 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.2
Two colonies of the parasitoid Trichopria drosophilae (Perkins) (Hymenoptera: Diapriidae) are reproduced using a mass rearing approach in Mexico. The first colony uses the worldwide commercial host Drosophila melanogaster Meigen (Diptera: Drosophilidae) reared on an artificial diet (=T. drosophilae-Dm), while the second colony uses D. suzukii Matsumura reared on fresh banana (=T. drosophilae-Ds). Since theoretically the type of colony host affects parasitoid field performance, we conducted concatenated laboratory and field studies of both parasitoid lines. In the laboratory trials, T. drosophilae-Ds exhibited greater longevity, larger adult size, and higher fecundity than T. drosophilae-Dm. Both lines of parasitoids oviposited indistinctly in three drosophilid species commonly found in the berry zones of Colima: D. melanogaster, D. suzukii, and Zaprionus indianus Gupta. In the field trials, T. drosophilae-Ds had a larger population size and provided 2.4-fold higher pest reduction compared to T. drosophilae-Dm. Under the particular conditions of these field trials (berry fields separate from each other ≤ 3 km, and intensive agronomic management), these results demonstrate that T. drosophilae-Ds can significantly contribute more to the integrated management of D. suzukii than when reared on the commercial host D. melanogaster.
Marcos A. Sanchez-Gonzalez,Dave Moskowitz,Priya D. Issuree,George Yatzkan,Syed A. A. Rizvi,Kenneth Day 대한감염학회 2020 Infection and Chemotherapy Vol.52 No.3
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the coronavirus responsible for our recent coronavirus disease 2019 pandemic, is driving a lung immunopathology that strongly resembles a severe form of hypersensitivity pneumonitis (HP). A review of recent Severe acute respiratory syndrome-related coronavirus (SARS-CoV) and SARS-CoV-2 medical reports, as well as described characteristics of HP, lead us to postulate a theory for SARS-CoV-2 severe disease. We propose that the novel SARS-CoV-2 can act as a trigger and substrate of an HP-like severe immune reaction especially in genetically vulnerable individuals in addition to those with immune senescence and dysregulation. Accordingly, the purpose of our letter is to shift the emphasis of concern surrounding immune activity from viral infection to an HP-like severe immune reaction. We review similarities in disease presentation between infection and allergy, relevant immunopathology, and outline phases of SARS-CoV-2 disease with perspectives on therapy and critical care. Altogether, the favored course is to begin treatments that address the disease at the earliest phase before immune dysregulation leading to uncontrolled pulmonary inflammation.
Sources, Characteristics, and Therapeutic Applications of Mesenchymal Cells in Tissue Engineering
Gonzalez-Vilchis Rosa Angelica,Piedra-Ramirez Angelica,Patiño-Morales Carlos Cesar,Sanchez-Gomez Concepcion,Beltran-Vargas Nohra E. 한국조직공학과 재생의학회 2022 조직공학과 재생의학 Vol.19 No.2
Tissue engineering (TE) is a therapeutic option within regenerative medicine that allows to mimic the original cell environment and functional organization of the cell types necessary for the recovery or regeneration of damaged tissue using cell sources, scaffolds, and bioreactors. Among the cell sources, the utilization of mesenchymal cells (MSCs) has gained great interest because these multipotent cells are capable of differentiating into diverse tissues, in addition to their self-renewal capacity to maintain their cell population, thus representing a therapeutic alternative for those diseases that can only be controlled with palliative treatments. This review aimed to summarize the state of the art of the main sources of MSCs as well as particular characteristics of each subtype and applications of MSCs in TE in seven different areas (neural, osseous, epithelial, cartilage, osteochondral, muscle, and cardiac) with a systemic revision of advances made in the last 10 years. It was observed that bone marrow-derived MSCs are the principal type of MSCs used in TE, and the most commonly employed techniques for MSCs characterization are immunodetection techniques. Moreover, the utilization of natural biomaterials is higher (41.96%) than that of synthetic biomaterials (18.75%) for the construction of the scaffolds in which cells are seeded. Further, this review shows alternatives of MSCs derived from other tissues and diverse strategies that can improve this area of regenerative medicine.
Gonzalez-Herrera, A.L.,Salgado-Bernabe, M.,Velazquez-Velazquez, C.K.,Salcedo-Vargas, M.,Andrade-Manzano, A.,Avila-Moreno, F.,Pina-Sanchez, P. Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.4
Background: Cervical cancer (CeCa) is the second most common cancer in women in developing countries, and human papilloma virus (HPV) is the primary etiological factor. Aberrant expression of HOX transcription factors has been observed in several types of cancer. To date, however, no reports exist on the expression of HOXB2 and HOXB13 proteins during neoplastic progression in CeCa and its correlation with HPV infection. Materials and Methods: Expression of HOXB2 and HOXB13 proteins was assessed in tissue microarrays from normal cervical epithelium, cervical intraepithelial neoplasias grade 1-3, and CeCa. HPV was detected by PCR and sequencing. Expression of HOX-positive cells was determined in each diagnostic group. Results: Percentage of HOXB2- and HOXB13-positive cells gradually increased from means of 10.9% and 16.7%, respectively, in samples from healthy women, to 75.2% and 88.6% in those from CeCa patients. Frequency of HPV infection also increased from 13% in healthy tissue samples to 92.3% in CeCa. Both HOXB2 and HOXB13 proteins were preferentially expressed in HPV+ samples. Conclusions: The present study represents the first report on the expression of both HOXB2 and HOXB13 proteins through cervix tumorigenesis, providing evidence that increased expression of such proteins is a common event during progression to CeCa.
Angiotensin-Converting Enzyme Inhibitors and Angioedema
Mario Sanchez-Borges,Luis A Gonzalez-Aveledo 대한천식알레르기학회 2010 Allergy, Asthma & Immunology Research Vol.2 No.3
Purpose: To investigate the incidence and clinical characteristics of angioedema associated with the use of angiotensin-converting enzyme inhibitors (ACEIs) in an outpatient allergy department. Methods: A retrospective review of medical records of new patients seen in an allergy clinic. Demographic and clinical data of patients with ACEI-induced angioedema were analyzed. Results: Nine (0.37%) out of 2,421 new patients attending the allergy clinic developed ACEI-associated angioedema. Enalapril was the drug most frequently incriminated. The onset of the angioedema was as early as after the first dose or as late as 2 years after beginning treatment. Six patients experienced life-threatening angioedema involving the tongue, oropharynx, or larynx, and two patients required transfer to the intensive care unit. One patient required a tracheostomy. Conclusions: Angiotensin-converting enzyme inhibitor treatment is often responsible for angioedema, especially involving the upper airways. Due to the high proportion of the population exposed to ACEIs and to the severity of this adverse effect, it is important that physicians consider ACEIs as possible inducers when evaluating patients with acute or recurrent angioedema.
Ivan Sanchez-Calleja,Alberto Martínez-Gutierrez,Ruben Ferrero-Guillén,Javier Díez-Gonzalez,Hilde Perez 한국정밀공학회 2024 International Journal of Precision Engineering and Vol.25 No.2
The advent of smart manufacturing (SM) has led to the creation of collaborative environments with cyber-physical systems (CPS) that generate added value. However, the performance of combined industrial operations between mobile CPS such as autonomous mobile robots (AMRs) and collaborative robots (cobots) is hampered by the high uncertainty between their relative spatial locations and the existence of heterogeneous communication protocols that create a barrier to their integration into production processes. For this reason, a novel contact system method (CSM) is proposed to determine the position of the AMR without the need for any additional hardware making use of an architecture that facilitates efficient communication between AMRs and cobots. For this purpose, a mathematical model has been defined to characterize the position of a spatial object with six degrees of freedom in order to calculate the deviation between the AMR and the cobot base. The proposed method has also been evaluated by quantifying the position and orientation error before and after applying the CSM. The effectiveness of the CSM method has been assessed in a real application case based on the feasibility of performing an assembly operation between a bearing and different shafts. The results show a significant improvement of 96.2% in positional accuracy and 85.4% in orientation compared to AMR accuracy. In addition, a 92.5% success rate was achieved in the assembly operation analyzed between a bearing and a shaft of the same diameter. Furthermore, the proposed architecture has enabled the coordination between the cobot and the AMR by automating the processes. Therefore, this work contributes to the field of SM by proposing a practical solution to the challenges of generating added value through the creation of collaborative environments with CPS.
Power Absorption Measurements during NMR Experiments
N. Felix-Gonzalez,A. L. Urbano-Bojorge,C. Sanchez-L de Pablo,V. Ferro-Llanos,F. del Pozo-Guerrero,J. J. Serrano-Olmedo 한국자기학회 2014 Journal of Magnetics Vol.19 No.2
The heating produced by the absorption of radiofrequency (RF) has been considered a secondary undesirable effect during MRI procedures. In this work, we have measured the power absorbed by distilled water, glycerol and egg-albumin during NMR and non-NMR experiments. The samples are dielectric and examples of different biological materials. The samples were irradiated using the same RF pulse sequence, whilst the magnetic field strength was the variable to be changed in the experiments. The measurements show a smooth increase of the thermal power as the magnetic field grows due to the magnetoresistive effect in the copper antenna, a coil around the probe, which is directly heating the sample. However, in the cases when the magnetic field was the adequate for the NMR to take place, some anomalies in the expected thermal powers were observed: the thermal power was higher in the cases of water and glycerol, and lower in the case of albumin. An ANOVA test demonstrated that the observed differences between the measured power and the expected power are significant.
Angelica S. Gonzalez-Garibay,Alfonso Lopez-Vazquez,Jesus Garcıa-Banuelos,Sergio Sanchez-Enrıquez,Ana S. Sandoval-Rodrıguez,Susana Del Toro Arreola,Miriam R. Bueno-Topete,Jose F. Munoz-Valle,Mercedes E 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.3
Excess of visceral adipose tissue (VAT) characteristic of obesity leads to a proinflammatory state disrupting the insulin signaling pathway, triggering insulin resistance (IR) and inflammation, the main processes contributing to obesity comorbidities. Ursolic acid (UA), a pentacyclic triterpenoid occurring in a variety of plant foods, exhibits anti-inflammatory properties. The aim of this study was to evaluate UA effects on IR, hyperinsulinemia, and inflammation in experimental diet-induced obesity. Forty male Wistar rats were randomly assigned to eight groups (n = 5). One group was used for time 0. Three groups were labeled as OBE (control): receiving high-fat diet (HFD; fat content 45.24% of energy) during 3, 6, or 9 weeks; three groups UA-PREV: exposed to simultaneous HFD and UA during 3, 6, or 9 weeks to evaluate UA preventive effects; one group UA-REV: receiving HFD for 6 weeks, followed by simultaneous HFD and UA for three additional weeks to analyze UA reversal effects. Measurements were performed after 3, 6, or 9 weeks of treatment. Adiposity was calculated by weighing VAT after sacrifice. Serum markers were quantified through colorimetric and enzyme-linked immunosorbent assay methods. VAT adipokines RNAm expression was evaluated by quantitative reverse transcriptase–polymerase chain reaction. Data were analyzed by Kruskal–Wallis and Mann–Whitney U tests. UA significantly decreased adiposity, IR, hyperinsulinemia, triacylglycerides, and cholesterol levels, and also VAT mRNA expression of MCP-1 (monocyte chemoattractant protein-1), IL (interleukin)-1β and IL-6, concomitantly increasing adiponectin levels. UA metabolic effects demonstrated in this study support its potential therapeutic utility to improve IR, hyperinsulinemia, and inflammation observed in obesity and diabetes.