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Benign osteoblastoma of the mandible: a case report
María del Carmen Navas-Aparicio(María del Carmen Navas-Aparicio ) 대한구강악안면외과학회 2023 대한구강악안면외과학회지 Vol.49 No.1
Osteoblastoma is a rare benign neoplasm formed by osteoid tissue and well-vascularized bone that occurs mainly in children and adolescents. It appears primarily in the long bones, vertebral column, and small bones of the hands and feet, and not typically in the skull and maxillary bones. The purpose of this study is to present the case of an 8-year-old girl with a diagnosis of right mandibular osteoblastoma and a review of the relevant literature. The goals of treatment were to preserve dental occlusion, masticatory function and facial symmetry while minimizing the effects on patient body image and quality of life. Osteoblastoma, although it is benign, can be aggressive, and its treatment will depend on the timing of diagnosis, size and location. Early diagnosis is essential to avoid not only radical surgery as in the case presented, but also to help minimize the risk of possible relapse and potential malignancy of a benign osteoblastoma.
Cytotoxic Activity of the Methanolic Extract of Turnera diffusa Willd on Breast Cancer Cells
Marı´a del Carmen Avelino-Flores,Marı´a del Carmen Cruz-Lo´pez,Fabiola E. Jime´nez-Montejo,Julio Reyes-Leyva 한국식품영양과학회 2015 Journal of medicinal food Vol.18 No.3
Turnera diffusa Willd, commonly known as Damiana, is employed in traditional medicine as a stimulant, aphrodisiac, and diuretic. Its leaves and stems are used for flavoring and infusion. Damiana is considered to be safe for medicinal use by the FDA. Pharmacological studies have established the hypoglycemic, antiaromatase, prosexual, estrogenic, antibacterial, and antioxidant activity of T. diffusa. The aim of the present study was to evaluate the possible cytotoxic effect of extracts and organic fractions of this plant on five tumor cell lines (SiHa, C-33, Hep G2, MDA-MB-231, and T-47D) and normal human fibroblasts. The results show that the methanolic extract (TdM) displayed greater activity on MDA-MB-231 breast cancer cells (with an IC50 of 30.67 μg/mL) than on the other cancer cell lines. Four organic fractions of this extract exhibited activity on this cancer cell line. In the most active fraction (F4), two active compounds were isolated, arbutin (1) and apigenin (2). This is the first report of a cytotoxic effect by T. diffusa on cancer cells. The IC50 values suggest that the methanolic extract of T. diffusa has potential as an anticancer therapy
Marı´a del Carmen Beltra´n-Orozco,Alfonso Martı´nez-Olguı´n,Marı´a del Carmen Robles-Ramı´rez 한국식품과학회 2020 Food Science and Biotechnology Vol.29 No.6
This study aimed to evaluate the influence ofgermination on the content of protein, lipids, fiber, ashes,tryptophan, vitamin C, total phenolic and total flavonoidcompounds, as well as on the protein digestibility andantioxidant activity of chia seeds germinated for 1, 2, 3,and 4 days. The results showed that germination for 2 daysaugmented the protein content of chia seeds by 13% whilefiber, tryptophan, total phenolic and flavonoid contentsincreased by 46%, 93%, 300%, and 197%, respectively,after 4 days of germination. Vitamin C was not detected indry seeds but increased up to 2.33 mg/100 g at fourth dayof germination. The antioxidant capacity increasedapproximately 100% but protein digestibility decreased by14% at day 4 of germination. Germination can be a goodmethod to increase the nutritional and nutraceuticalpotential of chia seed for its use in the design of functionalfoods.
del Carmen Velázquez-Martínez Guadalupe,González-Hernández Héctor,Equihua-Martínez Armando,Refugio Lomeli-Flores J.,Rojas Julio C.,Lopez-Collado Jose 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.1
Avocado production in Mexico represents an income of more than $3.2 billion dollars per year in foreign ex change. Unfortunately, several factors can limit the export of this fruit. One of such limiting factor is the avocado seed moth, Stenoma catenifer; however, its population dynamics is barely known. Therefore, is relevant to study the environmental factors affecting population changes, aimed to improve its management. In this study, we monitored the population fluctuations of S. catenifer males and explored its relationship with temperature and relative humidity by using pheromone-baited traps in Hass avocado orchards in the state of Colima, Mexico. From June 2018 to June 2019, a total of 6,836 males of the avocado seed moth were collected, with two population peaks. The first in June-August, during the fruiting stage, and the second in December-January, coinciding with the end of fruiting and flowering stages. Fruit infestation ranged from 0.0 to 65.0% in the or chards examined. Cluster analysis and principal coordinate analysis indicated that sampling time and relative humidity group together but differ from temperature. The effect of relative humidity and temperature on catches was analyzed by relating non-parametric bivariate distributions. The highest male catches were recorded at temperatures greater than 15.8 ◦ C and relative humidity greater than 60% while low relative humidity did not favor moth catches. These results may be useful to predict bioecological conditions for the occurrence of pop ulations of this pest.
Alicia del Carmen Mariñas Tapia 한국라틴아메리카학회 2013 라틴아메리카연구 Vol.26 No.4
In Peru handicraft production is an activity complementary to agriculture which transmits cultural traditions across the generations. This article presents an analysis of the Fair Trade practices inside two organizations which support the production and marketing of Peruvian artisanal handicrafts. First, basic information is presented concerning the Fair Trade, its definition,practices, and products. Next, information regarding Peruvian artisanal products is presented as along with Fair Trade handcrafts export data. Two handicrafts producer organizations are then analyzed as case studies of Fair Trade practices carried out for producer communities in the Peruvian Andes where conditions of extreme poverty predominate. Through these case studies the article provides a detailed description of how the implementation of Fair Trade practices in the selected Peruvian handicrafts producer organizations has helped them enhance their markets.
Implementation of Fair Trade Practices in Peruvian Artisanal Organizations
Alicia del Carmen Marinas Tapi 한국라틴아메리카학회 2013 라틴아메리카연구 Vol.26 No.4
In Peru handicraft production is an activity complementary to agriculture which transmits cultural traditions across the generations. This article presents an analysis of the Fair Trade practices inside two organizations which support the production and marketing of Peruvian artisanal handicrafts. First, basic information is presented concerning the Fair Trade, its definition, practices, and products. Next, information regarding Peruvian artisanal products is presented as along with Fair Trade handcrafts export data. Two handicrafts producer organizations are then analyzed as case studies of Fair Trade practices carried out for producer communities in the Peruvian Andes where conditions of extreme poverty predominate. Through these case studies the article provides a detailed description of how the implementation of Fair Trade practices in the selected Peruvian handicrafts producer organizations has helped them enhance their markets.
María del Carmen Oliver-Salvador,Elisa Morales-López,Enrique Durán-Páramo,Carlos Orozco-Álvarez,Sergio García-Salas 한국생물공학회 2013 Biotechnology and Bioprocess Engineering Vol.18 No.4
Cysteine proteases from Jacaratia mexicana,an endemic Mexican plant, could compete in industrial applications with papain. Currently the only way to obtain these proteases is by extracting them from the wild plant. An alternative source of these enzymes is by J. mexicana suspension culture. In this work, this culture was carried out in airlift, bubble column and stirred tank bioreactors,and the effects of shear rate and microturbulence on cell growth, protein accumulation and proteolytic activity were determined. The shear rates in the stirred tank, bubble column and airlift bioreactors were 274 1/s, 13 1/s and 36 1/s respectively, and microturbulences (symbolized by λ, in units of μm) were 46, 79, and 77 μm, respectively. Protein levels and proteolytic activity were linearly correlated with both shear rate and microturbulence. A higher shear rate and a more intensive microturbulence occurred in the stirred tank, producing higher protein accumulation and higher proteolytic activity compared with those of the other two bioreactor systems. Higher shear rate and microturbulence had an elicitor effect on protease synthesis, because microturbulence in stirred tank bioreactors was lower than the average length of J. mexicana cells. Furthermore, cells in the stirred tank were smaller and thinner than those grown in shake flask, bubble column and airlift bioreactors. In summary, proteases were produced by J. mexicana cell cultures in a stirred tank under conditions of high shear rate and intensive microturbulence, which are similar to those which occur in industrial stirred tanks. These results encourage continuation of the process development for large scale production of these proteases by this technology.
Zika and its vector mosquitoes in Mexico
Luis del Carpio-Orantes,María del Carmen González-Clemente,Teresa Lamothe-Aguilar 국립중앙과학관 2018 Journal of Asia-Pacific Biodiversity Vol.11 No.2
In the present study, we carried out a review on the potential vectors of the Zika virus in the Americas, specifically in Mexico. Being vectors of the Culicidae family, they have great predominance in those territories, which could facilitate viral dissemination.
Inverse behavior of IL-23R and IL-17RA in chronic and aggressive periodontitis
Ruiz-Gutierrez, Alondra del Carmen,Rodriguez-Montano, Ruth,Pita-Lopez, Maria Luisa,Zamora-Perez, Ana Lourdes,Guerrero-Velazquez, Celia Korean Academy of Periodontology 2021 Journal of Periodontal & Implant Science Vol.51 No.4
Purpose: Periodontitis is associated with a dysbiosis of periodontopathic bacteria, which stimulate the interleukin (IL)-23/IL-17 axis that plays an essential role in the immunopathogenesis of this disease, leading to alveolar bone destruction through receptor activator of nuclear factor κB ligand (RANKL). IL-23 receptor mRNA (IL-23R) has been identified in periodontitis, and IL-17 receptor A mRNA (IL-17RA) and its protein have not yet been evaluated in patients with periodontitis. In this study was measure IL-23R and IL-17RA in gingival tissue (GT) from patients with generalized chronic periodontitis (GCP) and generalized aggressive periodontitis (GAP) and to explore correlations with clinical parameters. Methods: We included 16 healthy subjects (HS), 18 patients with GCP, and 14 with GAP. GT samples were collected during periodontal surgery. Both IL-23R and IL-17RA were detected by enzyme-linked immunosorbent assay. Results: The results were analyzed with Mann-Whitney U test and Spearman' rank correlation coefficients using SPSS version 25.0. We found lower IL-23R levels in patients with GCP and GAP than in HS. Contrarily, we observed higher IL-17RA levels in GCP and GAP patients than in HS. Moreover, we found negative correlations between IL-23R in GT and probing depth and clinical attachment loss (CAL). Likewise, a positive correlation of IL-17RA in GT with CAL was found. Conclusions: The results of these findings suggest that the reverse behavior between IL-23R and IL-17RA in periodontitis patients may also be involved with the activation of RANKL, which promotes alveolar bone loss.