Search

Copyright of Revista de Ciencias Agricolas is the property of University of Narino, Faculty of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Spanish Journal of Rural Development is the property of Spanish Journal of Rural Development and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

On October 18, 2019, Chile experienced the most important social upheaval since the country regained democracy in the late 1980s. The "Social Outbreak" surprised economic and political elites and seemed paradoxical to the international community who had often praised Chile as a model of successful development. In this paper, we used structural-demographic theory to analyze the interaction between the overproduction of elites and the stagnation in the relative income of the population as the underlying structural cause of Chilean political instability. This theory was able to predict the three most significant instances of political tension in the recent history of Chile: the crisis of the late 1960s that culminated in the coup d'état of 1973, popular mobilizations during the 1980s, and the recent student mobilizations and social upheaval. Our results suggest that, at least during the period 1938-2019, Chilean sociopolitical dynamics is determined by the same structural drivers., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Muñoz-Rodríguez et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

Objective The general aim of this non-probabilistic epidemiologic study is to detect the levels of mental health symptoms and social support for the residents of two neighborhoods in the General Belgrano district in Guaymallén, Mendoza Province, Argentina. Methods A random sample of 62 adults was selected, in which the proportionality of age and sex were conserved in each quota. Each person was interviewed in his/her house using the Cuestionario Epidemiológico de Sintomatología Mental [Epidemiological Questionnaire on Mental Health Symptoms] (CESIM) and the Cuestionario de Apoyo Social Comunitario Percibido [Questionnaire on Perceived Community Social Support]. In addition, participants were asked about sociodemographic factors, self-rated mental health symptoms andv visits to services specializing in this area. Results The results show that unemployment, a low educational level and a marital status of separation or divorce were related to high symptoms in the mental health area. In groups with high symptoms, few visits to health services were identified. Conclusions No relationship was found between the social support indicators and the level of symptoms.

Brucellosis is an important malady of productive and wildlife animals and a worldwide zoonosis. The use of effective vaccines and the corresponding diagnostic tests that allow differentiating infected from vaccinated animals are essential tools to control the disease. For this, a prototype of Brucella abortus S19 vaccine expressing green fluorescent protein (S19-GFP) was constructed. The S19-GFP was readily identified under ultraviolet light by macroscopic and microscopic examination and maintained all the biochemical characteristics of the parental S19 vaccine. S19-GFP replicated ex vivo and in vivo, and protected mice against challenge with virulent B. abortus to the same extent as the isogenic S19. An immunoenzymatic assay designed to measure anti-GFP antibodies allowed the discrimination between mice vaccinated with S19-GFP and those immunized with S19. Both vaccines raised antibodies against lipopolysaccharide molecule to similar levels. This experimental model constitutes a "proof of concept" for the use of Brucella-GFP vaccines and associated diagnostic tests to distinguish vaccinated from naturally Brucella infected animals., (Copyright © 2010 Elsevier Ltd. All rights reserved.)

Objective: To determine users' satisfaction with dental care services provided at Instituto Mexicano del Seguro Social in Veracruz., Methodology: An epidemiological survey was conducted in 14 family medicine clinics located in the northern part of the state of Veracruz. The clinics were selected by stratified-random sampling. All users older than 20 years seeking medical or dental care services were interviewed; previously, their informed consent was obtained. We used the 6-items United Kingdom dental care satisfaction questionnaire (Spanish version) where question number four evaluates user satisfaction., Results: From October to December 2005, 3601 users were interviewed. We excluded 279 questionnaires because the age of the interviewees was <20 years. The final analysis included 3322 interviews (92%); 73% were female with an average age of 45 +/- 16 years old. 82% were satisfied with dental care services and 91% never felt like making a complaint. Waiting time of less than 30 minutes and last visit to the dentist in the last year were the only variables related to satisfaction (p = 0.0001)., Conclusion: There is a high level of satisfaction regarding dental care services among Mexican Institute of Social Security users. However, it would be possible to increase the level of satisfaction if the waiting time is reduced and the number of dental care users attending twice a year increases.

Methods: In order to investigate the effect of chronic inhibition of nitric oxide synthesis along pregnancy, pregnant rats were given drinking water alone (control group) or drinking water containing nonselective nitric oxide synthase inhibitor N(omega)-nitro-L-arginine methyl ester (L-NAME; 15 mg/day/rat equivalent to 50 mg/kg/day; treated group), from postmating days 1 to 18 of pregnancy. On days 1 to 17 of pregnancy, urinary volume, urinary sodium and potassium excretion, and urine protein concentration were measured. Systolic blood pressure (SBP) was recorded daily. On days 6, 11 and 18 of pregnancy the number of sites of implantation, number of embryos, litter size, fetal and placenta weight were determined., Results: Systolic blood pressure (mmHg) increased (p<0.001) on the 2nd day of administration of L-NAME and remained high throughout the experiment. This treatment increased urinary protein excretion and urine volume (p<0.01), with changes in the sodium and potassium excretion rate along the study. On day 6 of gestation in treated group, the number of implantation sites (0.14+/-0.10) significantly decreased (p<0.05) compared with the control group (1.45+/-0.58), but on day 11 of pregnancy the number of embryos was similar in both groups. By day 18 of pregnancy, L-NAME caused a substantial decrease (p<0.001) in litter weight (6.30+/-0.77 to 12.00+/-0.92 g), weight of placenta (3.17+/-0.22 to 4.74+/-0.21 g) (p<0.001) and litter size (7.95+/-0.59 to 11.95+/-0.45 fetus/litter; p<0.001). Also, treatment with L-NAME caused an important number of fetal resorptions (2.93+/-0.42 No./litter to 0 in control group)., Conclusion: Thus, treatment of pregnant rats with L-NAME, has an important effect on systolic blood pressure and on the physiology of reproduction, mainly in the third stage of pregnancy.

Background and Objective: The objective of this study was to determine the percentage of patients with high and very high cardiovascular risk, with their risk factors globally well controlled (hypertension, dyslipemia, diabetes mellitus, tobacco and obesity)., Patients and Method: Transversal study of ambulatory patients of internal medicine with an estimated cardiovascular risk high or very high (Framingham stratification scale over 20% in ten years). We evaluated the degree of control of their cardiovascular risk factors attending to the recommendations provided by recent international guidelines (WHO/ISH, JNC-VI, NCEP-ATP-III, ADA)., Results: We studied 2,264 patients (53.7% males; mean age: 66.1 +/- 11.5 years; 74.6% hypertensive, 61.1% dyslipidemic, 59.8% type 2 diabetes, 31.1% smokers, 38.0% obese and 36.7% in secondary prevention). Control of hypertension was achieved in 34.5%, dyslipidemia in 50.3% and diabetes in 35.5%. Global control of every risk factor was achieved in 6.9% (in 10.2% if we exclude obesity since it is not a risk factor used for cardiovascular stratification). Factors independently associated with a bad integral control were: diabetes (OR = 0.33; 95%CI: 0.23-0.47), dyslipidemia (OR = 0.34; 95%CI: 0.24-0.48), proteinuria (OR = 0.36; 95%CI: 0.18-0.71). Factors independently associated with a better cardiovascular control were: male sex (OR = 1.67; 95%CI: 1.18-2.38), ventricular hypertrophy (OR = 1.62; 95%CI: 1.15-2.30) and the number of exploratory tests (OR = 1.01; 95%CI: 1.01-1.08)., Conclusions: Only 6.9% of patients with a high or very high cardiovascular risk have all their principal risk factors under control. The presence of diabetes, dyslipidemia or proteinuria predisposed to a worse control and the number of complementary tests performed to the patients was related to a better control.

Objective: We analyze the characteristics of the patients with prostate tumours who developed a multiple malignant primary neoplasms (MMPN) in the health district of León, the impact on survival and the prognostic variables., Material and Methods: We have used the data from the Tumour Registry of the Hospital of León and we have selected all those patients who were diagnosed of a prostate tumor between 1993 and 2002. Later we made two groups: the first with 67 patients with MMPN and a second group with 145 patients with single prostate tumours diagnosed during 1996 and 1997., Results: Prevalence of MMPM was of 5.57 percent. Patients with MMPN were 3 years younger than those with single tumours, with a high frequency (41 percent) of familial oncologic antecedents on first degree parents. The more frequent association was the synchronous urologic neoplasm. During the next two years from diagnosed of prostate tumour, 86 percent of patients with MMPN were diagnosed of their second neoplasm. Survival of metachronous MMPN patients was lower than synchronous MMPN patients, being the variables with prognosis significance the age, metachronous MMPN, stage of second neoplasms and if the second neoplasms was or not urologic., Conclusions: MMPN in patients with prostatic tumours are frequent in our medium. A genetic base may be associated in these patients. Prognosis of metachronous MMPN patients is worse. No differences were observed about prognosis with single tumour patients.

Methods: The relationship between progesterone (P4), 17beta-estradiol, insulin-like growth factor (IGF-I) and embryonic and fetal development, were examined. Female Sprague Dawley rats were divided into two groups: control untreated (n=60) and treated (n=63) with L-NAME (N(omega)-nitro-L-arginine methyl ester), 15 mg/day in drinking water from the first day after mating to day 18 of gestation. A further group was formed (n=63) of spontaneously hypertensive rats (SHR). Mean systolic blood pressure was recorded daily. On days 6, 11 and 18 of pregnancy, the number of sites of implantation, litter and placenta weight was examined. In addition, serum levels of P4, 17beta-estradiol and IGF-I were determined., Results: Systolic blood pressure (SBP) (mmHg) increased significantly in L-NAME and SHR rats over the course of the experiment. On day 6 of pregnancy, in the L-NAME group the number of implantation sites, levels of IGF-I and 17beta-estradiol were significantly lower than in the control group. In SHR, only the concentration of IGF-I was low (p<0.05). In contrast, on day 11 of pregnancy no variation was found in the parameters under study. On day 18 of gestation, a significant decrease in litter and placenta weight, concentration of P4 and IGF-I was observed in the experimental groups., Conclusion: The data further suggest that nitric oxide might regulate IGF-I production, indicating that growth factors may play an important role in fetal-placental development.

We examined the test profile of changes in systolic blood pressure (SBP), urinary volume, urinary sodium, and protein excretion in normotensive (Sprague Dawley) and spontaneously hypertensive rats (SHR) up to the 18th day of pregnancy. On days 6, 11, and 18 of pregnancy, the number of implantation sites, number of embryos, litter size, placenta, and litter weight were determined. In SHR, SBP (mmHg) increased significantly from the start of the test and remained high throughout the experiment. There was also a significant increase in urine volume (mL per 24 hrs) and urinary sodium excretion (mEq per 24 hrs) but no significant changes in protein excretion rate. The number of implantation sites on day 6 of pregnancy and the number of embryos on day 11 were similar in both groups. Uterus weight in SHR on days 6 and 11 of pregnancy was significantly lower than in normotensive rats. On day 18 of pregnancy in SHR, a substantial decrease in litter weight (7.10 +/- 0.40 vs. 12.00 +/- 0.92 g; p < 0.001) and weight of placenta (2.35 +/- 0.07 vs. 4.74 +/- 0.21 g; p < 0.001) was observed, with no modification in litter size. The hypertension associated with pregnancy in SHR increased urine volume and urinary sodium excretion and decreased weight of uterus, litter, and placenta relative to control rats.

We report a case of neurosarcoidosis, which simulated a cerebral tumor located at the floor of the III ventricle, associated to an aseptic meningitis and diabetes insipidus. It was the first and only manifestation of the illness. The response to steroid therapy was very favourable, with complete clinical recuperation and radiological resolution.

We report three cases of women with abdominal pathology in which an elevated serum CA 125 tumor marker could have led to an erroneous diagnosis of ovarian carcinoma. However, after peritoneal biopsies were taken, tuberculosis was diagnosed. Furthermore, specific tuberculostatic treatment normalized serum CA 125 levels.