74 research outputs found
Valoración Financiera de Empresas : Análisis de los estados financieros de Finca Nicaragua,S.A. para el periodo de diciembre 2014 y 2015
A través del presente trabajo cuyo tema es valoración financiera de empresa y objetivo general es elaborar un diagnóstico financiero para la empresa Nicaragua en los periodos comprendidos de Diciembre 2014 y 2015, se realizó una serie de investigaciones bibliográficas en la cual la información recopilada nos dice que existen una gran cantidad de herramientas para realizar un análisis financiero.
Para este trabajo se decidió tomar como metodología el análisis vertical, análisis horizontal y el uso de indicadores financieros aplicados a los estados financieros de la empresa Finca Nicaragua ya que dichos métodos presentan perspectivas amplias de la situación financiera de la empresas y se pudo precisar el grado de rentabilidad y crecimiento de la institución
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Como principales resultados obtenidos tenemos que el estudio de las finanzas es de gran importancia porque nos permiten determinar la situación financiera de la empresa, para esto existen una gran cantidad de métodos para realizar un diagnóstico financiero, al momento de aplicar estos métodos a la empresa Finca Nicaragua se apreció que dicha empresa presenta un alto nivel de crecimiento en lo que respecta a su cartera de créditos bruta y mayor rentabilidad en la inversión.
Por lo cual podemos concluir que el trabajo investigativo fue de gran ayuda a cuanto enriquecer nuestros conocimientos para la valoración financiera de empresas. Y que al momento de realizar un diagnóstico financiero debemos de tomar en cuenta cuales son las principales áreas de la empresa que deseamos valora
Regulation of HMGCoA reductase Activity by Policosanol and Octacosadienol, a New synthetic Analogue of Octacosanol
The cholesterol biosynthesis enzyme oxidosqualene cyclase is a new target to impair tumour angiogenesis and metastasis dissemination
Aberrant cholesterol homeostasis and biosynthesis has been observed in different tumour types. This paper investigates the role of the post-squalenic enzyme of cholesterol biosynthesis, oxidosqualene cyclase (OSC), in regulating tumour angiogenesis and metastasis dissemination in mouse models of cancer. We showed that Ro 48-8071, a selective inhibitor of OSC, reduced vascular density and increased pericyte coverage, with a consequent inhibition of tumour growth in a spontaneous mouse model of pancreatic tumour (RIP-Tag2) and two metastatic mouse models of human colon carcinoma (HCT116) and pancreatic adenocarcinoma (HPAF-II). Remarkably, the inhibition of OSC hampered metastasis formation in HCT116 and HPAF-II models. Ro 48-8071 induced tumour vessel normalization and enhanced the anti-tumoral and anti-metastatic effects of 5-fluorouracil (5-FU) in HCT116 mice. Ro 48-8071 exerted a strong anti-angiogenic activity by impairing endothelial cell adhesion and migration, and by blocking vessel formation in angiogenesis assays. OSC inhibition specifically interfered with the PI3K pathway. According to in vitro results, Ro 48-8071 specifically inhibited Akt phosphorylation in both cancer cells and tumour vasculature in all treated models. Thus, our results unveil a crucial role of OSC in the regulation of cancer progression and tumour angiogenesis, and indicate Ro 48-8071 as a potential novel anti-angiogenic and anti-metastatic drug
Laparoscopic versus open surgical treatment of umbilical hernia
Umbilical hernia is one of the types of ventral hernias of the abdominal wall and it represents the externalization of a part of the abdominal contents through a defect of the anterior abdominal wall located in the umbilical region. It is estimated that more than 20 million abdominal wall hernia surgeries are performed worldwide each year. The paper presents a retrospective study on the patients diagnosed with umbilical hernia and admitted to the First and Second Surgery Departments of the Sibiu County Emergency Clinical Hospital. The study includes 82 cases diagnosed with umbilical hernias over a period of 4 years, between 01.01.2017 and 31.12.2020. Open and laparoscopic surgical techniques are compared in terms of outcomes and postoperative complications. Most cases of umbilical hernia were within the age group 51-70 years, with a slightly higher incidence in males. Arterial hypertension and obesity were the most frequent comorbidities. The alloplastic, classic or laparoscopic procedure became the most widely used due to benefits such as: rapid socio-professional reintegration, short-term hospitalization and low incidence of relapses and postoperative complications. The current trend is for the IPOM laparoscopic procedure to become the gold standard in the treatment of umbilical hernias
Increased micronuclei and nuclear abnormalities in buccal mucosa and oxidative damage in saliva from patients with chronic and aggressive periodontal diseases
Background and objective
Periodontal disease is a chronic bacterial infection characterized by connective tissue breakdown and alveolar bone destruction because of inflammatory and immune response caused by periodontopathogens and long-term release of reactive oxygen species. A high number of reactive oxygen species result in periodontal tissue damage through multiple mechanisms such as lipid peroxidation, protein denaturation and DNA damage. The aim of this study was to evaluate DNA and oxidative damage in subjects with chronic or aggressive periodontitis and healthy controls.
Material and methods
Buccal mucosa cells and whole saliva were collected from 160 subjects, who were divided into three groups: subjects with chronic periodontitis (CP) (n = 58), subjects with aggressive periodontitis (AgP) (n = 42) and a control group (n = 60). DNA damage was determined by counting micronuclei (MN) and nuclear abnormalities (NAs) in exfoliated cells, including binucleated cells, cells with nuclear buds and karyolitic, karyorrhectic, condensed chromatin and pyknotic cells. The degree of oxidative stress was determined by quantifying 8-hydroxy-2'-deoxyguanosine (8-OHdG) in whole saliva.
Results
Subjects with CP or AgP presented significantly more ( p < 0.05) MN and NAs and higher levels of 8-OHdG ( p < 0.05) compared with the control group.
Conclusion
Our results indicate that subjects with periodontitis (CP or AgP) exhibited an increase in the frequency of MN, NAs and 8-OHdG, which is directly related to DNA damage. In addition, a positive correlation exists between oxidative stress produced by periodontitis disease and MN
Immune Response in Gingival Disease: Role of Macrophage Migration Inhibitory Factor
The term periodontal disease encompasses a wide variety of chronic inflammatory conditions of the periodontium, including gingivitis and periodontitis. The gingival disease is an infectious process, which occurs due to the progression of untreated gingivitis. It is characterized by a destructive inflammatory process that affects the supporting tissues of the teeth, which causes the loss of the dental organs. As a result of inflammation, a wide range of cytokines and inflammatory mediators together contribute to tissue degradation and bone resorption. However, some molecules that have not been studied in the inflammatory process of this disease, such as the macrophage migration inhibitory factor (MIF) which is considered an important cytokine of the innate immune system; it is expressed constitutively in immune and nonimmune cells, and it is released immediately against bacterial stimuli, hypoxia, and proliferative signals. MIF has been described in some chronic degenerative, inflammatory, and autoimmune diseases. Previous studies have described that in murine models of periodontitis, MIF promotes the activation and differentiation of osteoclasts that could position this cytokine in the immunopathogenesis of gingival disease in humans
Genome Damage in Rats after Transplacental Exposure to Jatropha dioica Root Extract
Jatropha dioica is traditionally used owing to its antiviral, antifungal, and antimicrobial properties. But, toxicological information regarding J. dioica root total extract is currently limited. The aim of this work was to evaluate in a rat model, the transplacental genotoxicity effect of J. dioica aqueous root total extract. Three different J. dioica aqueous root total extract doses (60, 100, and 300 mg/kg) were administered orally to Wistar rats during 5 days through the pregnancy term (16–21 days). Pregnant rats were sampled every 24 h during the last 6 days of gestation, and pubs were sampled at birth. Genome damage in dams and their newborn pups transplacentally exposed to J. dioica was evaluated by in vivo micronuclei assay. We evaluated the frequency of micronucleated erythrocytes (MNE), micronucleated polychromatic erythrocytes (MNPCE), and polychromatic erythrocytes (PCE) in peripheral blood samples from pups and MNPCE and PCE in pregnant rats. No genotoxic effect was observed after oral administration of the three different doses of aqueous root total extract of J. dioica in pregnant or in their newborn pubs, after transplacental exposure. A significant decrease in PCE frequency was noted in samples from pubs of rats treated with the highest dose of J. dioica extract. The aqueous total root extract of J. dioica at the highest dose tested in our research do have cytotoxic effect in pups transplacentally exposed to this plant extract. Moreover, neither a genotoxic nor a cytotoxic effect was observed in pregnant rats. In the present work, there was no evidence of genome damage in the rat model after transplacental exposure to J. dioica aqueous root total extract
IL-12-dependent innate immunity arrests endothelial cells in G0–G1 phase by a p21Cip1/Waf1-mediated mechanism
Gene expression profiling reveals activation of the FA/BRCA pathway in advanced squamous cervical cancer with intrinsic resistance and therapy failure
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