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( Oscar Gutierrez Aguirre ),( Angelica Gutierrez Aguirre ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
Background: According to the American Cancer Society, the Non Hodgkin lymphoma (NHL) is one of the most common cancers in the United States of America (EUA), representing 4% of all the cases diagnosed of cancer. The objective of this study is to determine if the number of tons of packed soups consumed in every country has relation with the rate of incidence of NHL. Methods: We use a methodological ecological design. We obtained the rate of incident fi tted by age for country of the data base Globocan of 2012 and the data base of food consumed by country of Euromonitor. The countries included for the analysis are the ones that were found on both data bases. It was analyzed by means, linear regression, coeffi cient of correlation, ANOVA and graphical representation. Results: In total 68 countries fulfi lled the criteria of incorporation. We fi nd a coeffi cient of correlation of 0. 30, in the analysis of variance we fi nd a critical value of F of 7. 00 (p <0. 01). The country with the major consumption of packed soup was E. U. A with 1. 7 million tons, whereas the country with NHL`s with the most incidence was Denmark with rate fi tted by age of 9. 8 cases by every 100, 000 inhabitants. Conclusions: The results suggest that a relation can exist between NHL and the consumption of packed soup. What draws attention are bigger rates of incidence in developed countries than in the developing countries. Nevertheless a limitation of the methodological used design is that it is not possible to determine to individual level the relation between these 2 factors, there will be needed other methodological designs more specifi c to the above mentioned measurement, as cases and controls or cohorts design.
Gutierrez Alvarez Ana,Yachelevich Naomi,Kohn Brenda,Brar Preneet Cheema 대한소아내분비학회 2021 Annals of Pediatirc Endocrinology & Metabolism Vol.26 No.4
Severe hypertriglyceridemia (HTG) (>885 mg/dL) can be caused by familial partial lipodystrophy type 3 (FPLD3), an autosomal dominant disorder caused by loss of function of the peroxisome proliferator-activated receptor gamma (PPARG), characterized by abnormal distribution of fat and metabolic derangements. This case reports a 16-year-old female (body mass index, 23.5 kg/m2) hospitalized twice for pancreatitis (triglycerides [TG] level >2,200 mg/dL). Her treatment management included bowel rest, insulin infusion, and plasmapheresis. A low-fat diet with 10 g of fat daily and 160 mg of fenofibrate daily decreased fasting TG to 411 mg/dL (range, 0–149 mg/dL). The patient had a normal leptin level. Panel testing of genes that impact TG metabolism revealed a known pathogenic variant in the PPARG gene (c.452A>G p.Tyr151Cys). A second variant detected in this gene, c.1003G>C (p.Val335Leu), is considered benign. Her glycosylated hemoglobin of 6.6% and 2-hour oral glucose tolerance test confirmed type 2 diabetes mellitus (T2DM). This study reports the earliest detection of T2DM in an adolescent with a pathogenic variant of PPARG. PPARG-related FPLD3 should be considered in lean children that present with severe HTG and insulin resistance, and subsequent treatment with proliferator-activated receptor gamma agonists, specifically thiazolidinediones, should be considered.
Gutierrez, W.M.,Min, W.,Chang, H.H. Asian Australasian Association of Animal Productio 2009 Animal Bioscience Vol.22 No.5
The present study was conducted to evaluate the effect of chilled drinking water on the productivity of laying hens under constant high ambient temperature. A total of seventy-two, 123-day-old Hy-line brown layers was divided into two equal groups. The first group (UDWG) was given unchilled water ($23.0{\pm}2.5^{\circ}C$) as a control, and the second group (CDWG) was given chilled water ($16.0{\pm}0.5^{\circ}C$). The laying hens were kept at $30^{\circ}C$ constant temperature with 50% relative humidity and were exposed to 17 h of light per day. Feed intake, egg production, egg quality (egg weight, shell weight, shell thickness, egg color, yolk color, and Haugh unit), and blood samples were collected and analyzed. The results showed that the feed intake of CDWG laying hens was significantly higher (11.64%) than the UDWG counterparts (p<0.01). Egg production of CDWG was also significantly higher (11.27%) than the UDWG counterparts (p<0.001). Furthermore, we observed that the CDWG laying hens had significantly higher (11.72%) levels (p<0.10) of blood calcium, with a corresponding value of 21.92 mg/dl compared to the UDWG hens (19.62 mg/dl). The higher calcium concentration in the CDWG animals may contribute to increased egg production. The CDWG laying hens also contained higher (12.53%) phosphorus concentrations in blood compared to the UDWG (4.22 mg/dl vs. 3.75 mg/dl), although not statistically different (p>0.10). Egg weight and egg quality were not affected by chilled drinking water. In conclusion, providing chilled drinking for laying hens under high ambient temperature improved feed intake and egg production.
Hypoglycemic Effects of Sesquiterpene Lactones from Byrsonima crassifolia
Gutierrez, Rosa Martha Perez,Ramirez, Alethia Muniz 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.4
The novel dimeric guaianolides sesquiterpene lactone Byrsoninas A and B from seed hexane extract of Byrsonima crassifolia were identified. Streptozotocin-induced mildly diabetic and severely diabetic mice were treated with these oral administrations at a dosage of 20 mg/kg of body weight per day for 30 days. Also the protective effect in vitro in RIN-5F cells against oxidative stress was investigated and $TNF-{\alpha}$ and IL-6 levels were measured. Both Byrsonina types reduced blood glucose, cholesterol, triglyceride, lipoprotein, and transaminase levels and increased HDL-cholesterol, antioxidant enzymes, and TBARS-reactive substance levels. Byrsoninas A and B both improved this glucose metabolism by reducing insulin resistance and by stimulating insulin production due to protection effect for pancreatic ${\beta}-cells$ against oxidative stress, lipid abnormalities were reduced and, chronic inflammation responses were alleviated producing a hepatoprotective role.
Comparison and Study of Active and Hybrid Power Filters for Compensation of Grid Harmonics
Gutierrez, Bryan,Kwak, Sang-Shin The Korean Institute of Power Electronics 2016 JOURNAL OF POWER ELECTRONICS Vol.16 No.4
This paper presents a theoretical analysis and comparisons of active power filter (APF) and hybrid power filter (HPF) systems, given terminal constraints of harmonic compensations in nonlinear loads. Despite numerous publications for the two types of filters, the features and differences between them have not been clearly explained. This paper presents a detailed analysis of the operations of a HPF inverter along with those of passive power filters (PPFs). It also includes their effects on the power factor at the grid. In addition, a theoretical analysis and a systematic comparison between the APF and HPF systems are addressed based on system parameters such as the source voltage, output power, reactive component size, and power factor at the grid terminals. The converter kVA ratings and dc-link voltage requirements for both topologies are considered in the presented comparisons
Gutierrez-Vargas, Gildardo,Ruiz, Alberto,Lopez-Morelos, Victor H.,Kim, Jin-Yeon,Gonzalez-Sanchez, Jorge,Medina-Flores, Ariosto Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.9
One of the consequences of the 475 ℃ embrittlement of duplex stainless steels is the reduction of the resistance to localized corrosion. Therefore, the detection of this type of embrittlement before the material exhibits significant loss in toughness, and corrosion resistance is important to ensure the structural integrity of critical components under corrosion threats. In this research, conductivity measurements are performed using the alternating current potential drop (ACPD) technique with using a portable four-point probe as a nondestructive evaluation (NDE) method for detecting the embrittlement in a 2507 (UNS S32750) super duplex stainless steel (SDSS) aged at 475 ℃ from as-received condition to 300 h. The electric conductivity results were compared against two electrochemical tests namely double loop electrochemical potentiokinetic reactivation (DL-EPR) and critical pitting temperature (CPT). Mechanical tests and the microstructure characterized using scanning electron microscopy (SEM) imaging are conducted to track the progress of embrittlement. It is shown that the electric conductivity correlates with the changes in impact energy, microhardness, and CPT corrosion tests result demonstrating the feasibility of the four-point probe as a possible field-deployable method for evaluating the 475 ℃ embrittlement of 2507 SDSS.