1,178 research outputs found
Plantas medicinais da Península de Setúbal. Contribuição para o conhecimento da sua relevância Etnobotânica
A Península de Setúbal engloba ambientes muito distintos, na medida em que, por um lado, alberga cidades de grande/média e pequena dimensão, intimamente relacionadas com a capital, e por outro, áreas bem preservadas que integram parques naturais ou reservas/zonas protegidas. Assim sendo, os principais objectivos deste estudo prenderam-se com: 1) a caracterização dos remédios vegetais usados por populações distintas (as de áreas urbanas e as de áreas rurais); 2) a comparação e compreensão destas práticas (modo de aquisição e transmissão) e 3) a avaliação da influência da flora envolvente e da disponibilidade das plantas na sua persistência nestas populações. Os dados foram obtidos através de entrevistas semi-estruturadas a 121 pessoas, maioritariamente idosos, e permitiram recolher informações relativas ao nome vernáculo das plantas, à sua utilização terapêutica, ao seu modo de obtenção, aos procedimentos de colheita, à parte utilizada, ao seu modo de utilização, conservação e administração, a precauções/contraindicações do tratamento e ao modo de avaliação da sua eficácia, à fonte deste conhecimento e a outras utilizações das plantas. Foram referidos 186 usos medicinais distintos para os 253 taxa tentativamente catalogados, correspondendo a [Lavatera cretica L., Malva spp. (M. nicaeensis All.; M. sylvestris L.; M. tournefortiana L.); Pelargonium graveolens L' Her.] (“malvas”) o maior número de usos (31), enquanto que o taxon mais citado foi Aloysia triphylla (L'Hérit.) Britt. (“doce-lima”) (60 entrevistas). O grupo terapêutico com maior número de usos atribuído foi “Sistema digestivo” e o uso mais citado foi “Estômago” (45 taxa). Para averiguar de que modo as plantas eram caracterizadas pelos usos e os informantes pelas características identitárias (idade, sexo, local de nascimento, local de residência, escolaridade e actividade profissional) e plantas usadas (espécies, modo de aquisição, objectivo e regularidade do uso), recorreu-se à Análise das Correspondências seguida de Classificação Automática. Verificou-se que apesar de muitas das plantas terem várias aplicações terapêuticas, eram frequentemente utilizadas em afecções fisiologicamente relacionáveis. Constatou-se também que os informantes residentes em áreas mais urbanas apresentavam características distintas daqueles que residiam em áreas mais rurais, sendo que a sua área de residência tinha influência nas plantas que usavam. Para muitos dos parâmetros analisados a percentagem de esquecimento/desconhecimento foi importante, revelando que muitos dos informantes já não têm bem presentes os conhecimentos da medicina tradicional, o que confere urgência a uma recolha mais exaustiva destes conhecimentos, antes que desapareçam por completo
A Importância da Geopolítica nas Decisões de Localização Internacional: O Caso Polaco
A área ‘internacional’ é frequentemente estudada a partir de perspectivas isoladas como a da Economia ou a das Relações Internacionais. No entanto, a respectiva multidisciplinaridade exige uma abordagem múltipla e combinada que raramente é encontrada na literatura científica. Em concreto, a Geopolítica, disciplina das Relações Internacionais com forte componente estratégica, apresenta-se ainda como insondada pelos autores do International Business. Embora as suas interligações, que assentam essencialmente numa base comum geografia e location, possam ser facilmente compreendidas, a literatura sobre a temática da influência dos aspectos geopolíticos sobre o International Business é escassa. O presente trabalho visa o aprofundamento da análise desta problemática e o colmatar de uma lacuna da literatura ao resumir e propôr um enquadramento analítico para o estudo combinado destas duas áreas científicas, susceptível de aplicação empírica ao estudo de casos/países concretos.Geopolítica; Negócios Internacionais; mercados para internacionalização; decisões de localização
The use of herbal remedies in urban and rural areas of the Setúbal Peninsula (Portugal): A study among elders
The Setúbal Peninsula is a highly diverse area where some large-medium and small cities are concentrated and where well preserved areas integrating a natural park or reserved and protected zones can also be found. The main goals of this study were the characterization of the herbal remedies used by different populations, namely that of urban and rural areas, to compare and understand these practices, namely how they were acquired and transmitted, and to evaluate the influence of the involving flora and plant availability on its persistence.
Data were obtained through semi-structured interviews to 121 persons, mainly elders. Information concerning plant’s common name, therapeutic utility, form of acquisition, harvesting procedures, parts used, way of utilization, conservation and administration, precautions or side-effects if any, evaluation of treatments efficiency, source of knowledge and other uses of the plants were recorded.
Multivariate analysis of correspondences was used to characterize plants by their uses and informants by age, sex, birth-place, residence, education level, professional activity, form of plant acquisition, usage aim and regularity, and by the plants they use. Discriminant analysis was used to assess the influence of urban and rural (mountain or coastal) residence area on plants used by the informants.
186 different medicinal uses were indicated for the 253 taxa tentatively catalogued. Although many plants had various therapeutic applications, they were frequently used in physiologically related problems. Informants living in rural areas had different characteristics of those living in urban areas, their residence areas influencing the plants used
Tuberculose disseminada com manifestações cerebrais, pulmonares, ganglionares e intestinais em raposas
Tuberculose disseminada com manifestações cerebrais, pulmonares, ganglionares e intestinais em raposas
Temperature evaluation in ex-vivo bovine bones submitted to drilling processes
A necrose óssea induzida durante o processo de furação é um fenómeno frequente que contribui
para problemas pós-operatórios. O calor de fricção gerado pelo contato entre a broca e a
parede do furo é inevitável. No entanto, a utilização de técnicas avançadas para a obtenção do
registo térmico durante a furação óssea é importante para a garantia da qualidade durante a
furação. O objetivo deste estudo é apresentar dois métodos experimentais diferentes para
analisar as condições de furação que geram as temperaturas mais baixas, evitando a
ocorrência da necrose óssea. Foram utilizados ossos de bovino ex-vivo para simular o processo
de furação considerando os efeitos do diâmetro da broca, velocidade de rotação e velocidade
de avanço. Foram realizados diferentes testes experimentais para avaliar a sua repetibilidade.
Os resultados identificaram o diâmetro da broca como o parâmetro mais crítico na indução de
temperaturas mais elevadas durante a furação óssea.This research was supported by the Portuguese Foundation of Science and Technology under the research project UID/EMS/50022/2013. The third author acknowledges the funding of Project NORTE-01-0145-FEDER-000022-SciTech -Science and Technology for Competitive and Sustainable Industries, co-financed by Programa Operacional Regional do Norte (NORTE2020), through Fundo Europeu de Desenvolvimento Regional (FEDER).info:eu-repo/semantics/publishedVersio
Aplicação de uma língua electrónica na classificação de méis monoflorais
Analisou-se o perfil polínico de 51 amostras de mel nacional. Os pólens mais frequentes no
mel são originários das plantas dos géneros Lavandula, Cistus, Echium, Erica, Castanea, Thymus,
Prunus, Cytisus, Carduus, Trifolium e Citrus. Considerando a classificação de mel monofloral de
Lavandula (pólen predominante superior a 15%), de Erica e de Echium (pólen predominante superior
a 45%) seleccionaram-se 38 méis monoflorais: 18, 9 e 11 destes méis foram classificados como méis
monoflorais de Lavandula, Erica e Echium, respectivamente. Contudo há méis que podem ser
classificados como mel monofloral de dois géneros de pólen (Lavandula-Echium, Erica-Lavandula,
Echium-Lavandula). Os méis monoflorais foram analisados com um sistema de multi-sensores
químicos não específicos de sensibilidade cruzada (Língua Electrónica) e os resultados foram tratados
através da análise de componentes principais e análise discriminante. Verificou-se que é possível
discriminar razoavelmente o mel monofloral de acordo com o género do pólen predominante
Clinical quiz.
J Pediatr Gastroenterol Nutr. 2005 Oct;41(4):483-4, 484.
Clinical quiz.
Prior AC, Selores M, Pina R, Dias JA, Costa FM, Vale L, Gomes L.
Department of Pediatrics, Hospital Geral de Santo António, Portugal.
PMID: 16205521 [PubMed - indexed for MEDLIN
Renal Allograft Rupture: A Clinicopathologic Review
Transplantation Proceedings
Volume 32, Issue 8, December 2000, Pages 2597-2598
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doi:10.1016/S0041-1345(00)01801-7 | How to Cite or Link Using DOI
Copyright © 2000 Elsevier Science Inc. All rights reserved. Cited By in Scopus (4)
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Renal allograft rupture: a clinicopathologic review
M Ramosa, , L Martinsa, L Diasa, A.C Henriquesa, J Soaresa, J Queirósa and A.M Sarmentoa
aDepartments of Urology and Nefrology, Hospital Geral de Santo António, Oporto, Portugal
Available online 19 December 2000.
Article Outline
Patients and methods
Results
Discussion
References
Renal allograft rupture (RAR) is a rare but very serious complication of renal transplantation, requiring emergency surgery. The most common cause is acute allograft rejection, but other causes such as renal vein thrombosis (RVT), acute tubular necrosis (ATN), renal biopsy, and lymphatic obstruction have been reported.[1] and [2] We reviewed our experience with the aim of identifying RAR predisposing conditions.
Patients and methods
In a consecutive series of 934 renal transplants performed between July 1983 and September 1999, 11 patients (1.2%) had RAR. In these cases we studied donor and recipient characteristics, preservation conditions, clinical signs and symptoms, treatment, and pathology findings. This group of patients was then compared with their paired cohort. Data analysis was computer-based. In the statistical analysis t test and Fisher’s exact test were used.
Results
All 11 kidneys that suffered RAR were from cadaver donors, nine male and two female. The mean age was 29.5 years with good terminal serum creatinine (mean 1.1 mg/dL). All organs were stored in Eurocollins solution and the mean cold ischemia time was 21 hours and 25 minutes (range, 10 hours to 29 hours and 20 minutes).
Excluding one black patient, all recipients were Caucasian. Eight were female and 3 were male, with a mean age of 33.8 years. The mean HLA match was 1.7, and the mean peak panel reactive antibody (PRA) was 22% (range 0 to 93%) and current was 15% (range 0 to 67%). All patients had cyclosporine treatment, eight had delayed graft function requiring dialysis, and three underwent renal allograft biopsy. In two patients rupture occurred in the second allograft; the others were first transplants.
The day of RAR was a mean of 5.3 (range 2 to 13). All patients had new onset of severe allograft pain, eight had a drop in daily hematocrit, and six had hypotension. The four patients with more precocious ruptures had sudden onset of bleeding through the drainage tube.
Transplant nephrectomy was performed in 10 patients, and surgical conservative treatment with fibrin glue and collagen foam was performed in one. All patients survived RAR. Three had a second transplant and currently have functioning allografts.
Pathology examination revealed RVT in three patients and some degree of rejection in the remaining eight. One patient had a rupture on the second day because of hyperacute rejection, and three had severe acute cellular rejection, but in four patients the dominant figure was ATN with minimal rejection. Excluding the patient with hyperacute rejection, the day of rupture was later for those with severe acute rejection, a mean of 9.6 days (range 6 to 13). In those with ATN, the day of RAR was a mean of 4.5 (range 3 to 6) and the patients with RVT had ruptures even sooner, on mean third day (range 2 to 4).
Variables associated with RAR were: sex mismatch (P = .004), current PRA (P = .012), and a need for dialysis (P = .042). Age of the recipient, transplant number, cold ischemia time, total HLA match, and peak PRA were not associated with RAR.
Discussion
Higher current PRA and a need for dialysis are variables associated with rejection and ATN. Therefore they are expected to be related to rupture. The well-documented conditions that are associated with ATN and rejection3 must be the same, which in extreme conditions predispose to RAR. We find no explanation for the statistically significant association of sex mismatch and RAR, other than random error.
Acute allograft rejection is the most frequent cause of graft rupture in the literature (60 to 80%),3 but ATN has received little note. In our series, ATN was responsible for 36% of the ruptures, as much as severe acute rejection. ATN alone can cause RAR,4 because of interstitial edema and rise in intrarenal pressure. But when associated with rejection, it seems that these two conditions can act synergistically to cause allograft rupture.
Our data suggests that rupture occurs later when caused by rejection, rather than when RVT is responsible. To our knowledge this finding had never been reported in world literature. Perhaps the timing of RVT is related to technical problems, such as twisting and kinking of the vein or intima tear, although the thrombogenic effect of cyclosporine can also have a role in this process.5
All these patients were on cyclosporine therapy, which may explain the small number of RAR caused by rejection alone and the significant number of patients that had RVT (27%). It appears that cyclosporine therapy is changing the etiology of the graft rupture.6
References
1 T. Grochowiecki, J. Szmidt and K. Madej et al., Transplantation Proc 28 (1996), p. 3461. View Record in Scopus | Cited By in Scopus (2)
2 R.S. Lord, D.J. Effeney and J.M. Hayes et al., Ann Surg 177 (1973), p. 268. Full Text via CrossRef | View Record in Scopus | Cited By in Scopus (4)
3 G.J. Azar, A. Zarifian and G.D. Frentz et al., Clin Transplantation 10 (1996), p. 635. View Record in Scopus | Cited By in Scopus (12)
4 Y.H. Chan, K.M. Wong and K.C. Lee et al., Am J Kidney Dis 34 (1999), p. 355. Abstract | Article | PDF (86 K)
5 R.M. Jones, J.A. Murie and A. Ting et al., Clin Transplant 2 (1988), p. 122.
6 A.J. Richardson, R.M. Higgins and A.J. Jaskowski et al., Br J Surg 77 (1990), p. 558. Full Text via CrossRef | View Record in Scopus | Cited By in Scopus (19
Perceptions in Living Kidney Donation: What ProtagonistsThink and Feel
Abstract
Background
Although donor perceptions of donation have been evaluated in several programs, evaluation of associated recipients has not been as frequent.
Purpose
Our aim was to evaluate and compare after transplantation, donor and recipient perceptions of donation.
Methods
After transplantation 35 recipients and 45 donors completed a sociodemographic and a donation perception questionnaire. We applied the Fisher test to descriptive (absolute and relative frequency) data.
Results
57.8% of donors were female and 62.9% of recipients male. 53.3% of donors were siblings, 44.5% parents, and 2.2% a daughter. Most recipients (71.9%) thought that the donation was the donors' initiative and 21.9% that it was suggested by medical team. 96.4% responded that it was the donor's wish that determined their decision; 51.4% had serious or some doubts about accepting the option, but for 48.6% it was an easy decision. Among the donors, 88.9% decided by themselves and 8.9% were asked for donation. For 91.1%, their wish was the main reason of the decision, but 8.9% felt a moral obligation; 77.8% thought it was an easy decision, and 17.8% hesitated a little 84.4% were not worried about their future health.
Conclusions
Altruistic motivations were predominant in both groups. Most recipients thought that the motivation for donation was self-determined, a finding that agreed with donor perceptions. Perceptions about the quality of and changes in emotional relationship were the same in both groups. Donors and recipients referred to the donation process as positive, but there were some negative emotions and perceptions
Depression and anxiety in living kidney donation: evaluation of donors and recipients.
Transplant Proc. 2011 Jan-Feb;43(1):131-6.
Depression and anxiety in living kidney donation: evaluation of donors and recipients.
Lopes A, Frade IC, Teixeira L, Oliveira C, Almeida M, Dias L, Henriques AC.
SourceLyaison-Psychiatry and Health Psychology Unit, Oporto Hospital Centre, Oporto, Portugal. [email protected]
Abstract
BACKGROUND: Psychosocial status of donors before and after living kidney donor transplantation has been an important concern. Investigations of psychosocial issues in related recipients are not frequent.
AIM: The aims of this study were to evaluate and compare psychopathologic dimensions in donors and recipients before and after transplantation.
METHODS: Thirty-five recipients and 45 donors completed a psychosocial evaluation before and after transplantation. We applied Pearson chi-square, McNemar, Fisher, Wilcoxon, and Mann-Whitney tests as well as linear and logistic regression statistical methods.
RESULTS: Before transplantation 100% of the recipients presented total anxiety, compared with 64.4% of donors, with higher anxiety levels in all dimensions (P < .001). Also, 38.7% of recipients and 16.3% of donors had moderate/serious depression (P = .029). Men showed higher levels of cognitive anxiety before transplantation (odds ratio [OR] = 4.3; P = .008). After versus before transplantation central nervous system and cognitive anxiety had diminished in recipients (P = .031; P = .035, respectively); there were higher levels of cognitive anxiety than among the donors (P = .007). Depression showed no significant changes in recipients or donors; the differences were no longer significant. There were less severely depressed recipients but an increase among severely depressed donors. Male recipients and donors showed greater cognitive anxiety (P = .02; P = .04, respectively) at both times. Female recipients presented with more severe depression (P = .036).
CONCLUSIONS: Anxiety is an important symptom. Surgery had a positive impact to lower anxiety in recipients. Most protagonists displayed little or no depression; it was more prevalent among recipients. Donors and recipients maintained some psychopathologic symptoms after surgery. We defined vulnerable groups among these cohorts.
Copyright © 2011 Elsevier Inc. All rights reserved
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