bluuebunny/crossref_metadata_2025_split huggingface dataset:
In Vitro Evaluation of Plasticizer Activity on the Growth and Metabolism of Chick Embryo Fibroblasts and on the Development of Chick Embryo Lungs
Authors: Stabellini G , Fiocchi O , Pellati A , Caruso A 
Published: January 2017

Administration of di(2-ethylhexyl) phthalate (DEHP) to primary cultures of chick embryo fibroblasts brought about a decrease in cell proliferation rate after 48 h and an inhibition of both DNA and protein synthesis measured by [3H]thymidine and [3H]leucine, respectively, after 48h. The growth of chick embryo lung rudiments in vitro was also depressed by DEHP treatment. Lung rudiment were smaller in DEHP-treated embryos after 6 days' treatment. These results indicate that DEHP has a cytostatic effect on embryonic cells and tissues. L'administration de di(2-éthylhexyl) phthalate (DEHP) à des cultures primaires de fibroblastes d'embryon de poulet a provoqué une diminution du taux de prolifération cellulaire après 48 heures et une inhibition de la synthèse à la fois d'ADN et de protéines mesurée, respectivement, par [3H]thymidine et [3H]leucine après 48 h. La croissance des ébauches pulmonaires de l'embryon de poulet in vitro a également été abaissée par le traitement DEHP. Les ébauches pulmonaires étaient plus petites dans les embryons traités au DEHP après un traitement de 6 jours. Ces résultats indiquent que le DEHP a un effet cytostatique sur les cellules et tissus embryonnaires.
Histological and Electron Microscopic Studies of Endemic Ethmoidal Carcinomas in Cattle
Authors: Pospischil A. , Haenichen T. , Schaeffler H. 
Published: January 2017

In five cases of endemic ethmoidal carcinoma in cattle from the Dominican Republic three tumor types could be classified: undifferentiated carcinoma (3), adenocarcinoma (1), and squamous cell carcinoma (1). Electron microscopy showed that the tumor cells in undifferentiated carcinomas closely resembled the cells of the normal olfactory mucosa. This was especially true for the dark cells of Bowman's gland. Ultrastructurally, the lymphoid cells of the undifferentiated bovine carcinoma resembled the lymphoid cells of human nasopharyngeal carcinoma being closely associated with Epstein-Barr Virus. This and epidemiological observations suggested a viral cause of endemic ethmoidal carcinoma.
Acute Experimental Canine Ehrlichiosis
Authors: Reardon M. J. , Pierce K. R. 
Published: January 2017

Dogs with acute Ehrlichia canis infection showed the established clinical features of acute ehrlichiosis and had thrombocytopenia, anemia, increased serum glutamic pyruvic transaminase activity, and decreased total serum protein and albumin concentrations during the first weeks after infection, and increasing gamma globulin concentrations after the third week. Gross lesions in hemic and lymphoreticular tissues were transient lymphadenomegaly, splenomegaly, and increased red long-bone marrow. Lymphoreticular hyperplasia in the paracortical area of lymph nodes and in the splenic red pulp occurred during the second week of infection. Later, small lymphocytes were replaced by medium-sized lymphocytes and plasma cells. Activity of germinal centers increased initially, as shown by numerous mitotic figures and macrophages, but diminished later, and the follicles blended with interfollicular and paracortical tissue because of a decrease in small lymphocytes in the mantle layer. We saw splenic hemorrhages near the perifollicular sinus, and vasculitis, most often phlebitis, in the kidney between weeks 2 and 4. Multifocal reticuloendothelial hyperplasia occurred in the liver during the early stage and injured adjacent hepatocytes by compression. Lesions typical of ehrlichiosis in these dogs were interstitial pneumonia, subendothelial aggregates of mononuclear cells in pulmonary blood vessels, renal periglomerular and perivenular plasmacytosis, hemopoietic hyperplasia, and perivascular cuffs of lymphocytes and plasma cells in many organs.
Liquoid-Induced Renal Lesions in the Dog
Authors: Spencer A. J. , Wright N. G. , Macmillan I. 
Published: January 2017

The role of fibrin in the pathogenesis of renal glomerular scarring in the dog was studied. Fibrin deposition, resulting from disseminated intravascular coagulation, was induced by intravenous injection of Liquoid (sodium polyanetholsulphonate). Thirty-eight puppies were killed from 30 minutes to 39 days after treatment, and the renal lesions examined by light, electron and immunofluorescence microscopy. The major acute lesions in the glomeruli were capillary thrombosis, mesangial and endothelial cell swelling and phagocytosis of fibrin, polymorphonuclear leukocyte infiltration and necrosis. Animals that recovered from this acute phase had focal glomerular scars. Affected glomeruli showed combinations of mesangial enlargement, focal tuft hypercellularity, collagen formation, thickening, wrinkling and duplication of the glomerular basement membranes, and some capsular adhesions. These observations indicate that fibrin deposition can be an important mechanism in glomerular scarring in the dog.
Pathology of Naturally Occurring Chlamydiosis in African Clawed Frogs (Xenopus laevis)
Authors: Howerth E. W. 
Published: January 2017

Chlamydiosis was diagnosed in six African clawed frogs (Xenopus laevis) from a tank of laboratory-bred frogs experiencing sudden deaths. Gross findings were hepatomegaly, distention of the gall bladder, and splenomegaly. Hepatic lesions were present in each frog and were characterized by mononuclear cell infiltrates, necrosis of hepatocytes, Kupffer's cell proliferation, and sinusoidal fibrin thrombi. Cholestasis, hemosiderin-laden Kupffer's cells, parenchymal infarction, and multinucleated hepatocytes were less common findings. Other lesions included degenerative and inflammatory changes in the kidneys, epicarditis and myocarditis, and reticuloendothelial cell proliferation, lymphoid depletion, and necrosis in the spleens. Intracytoplasmic inclusions typical of chlamydiae were seen by light microscopy in hepatocytes and reticuloendothelial cells of the spleen. Electron microscopy demonstrated that these inclusions were composed of three distinct types of particles consistent with the life stages described for chlamydiae.
Familial Renal Amyloidosis in Abyssinian Cats
Authors: Boyce J. T. , DiBartola S. P. , Chew D. J. , Gasper P. W. 
Published: January 2017

Medullary and glomerular amyloidosis, papillary necrosis, and secondary interstitial disease were diagnosed in eight related adult Abyssinian cats from two catteries. The lesions were similar to those in two unrelated mongrel cats with renal amyloidosis. Ultrastructurally, the patterns of amyloid deposition were as described in other species, although medullary deposition predominated. Potassium permanganate oxidation blocked Congo red staining of the deposits suggesting that they contained amyloid A protein (secondary amyloid). The disease may be a model of familial secondary amyloidosis and offers an opportunity to study the pathogenesis of both amyloid deposition and papillary necrosis. The histochemical characteristics of feline renal amyloid require careful attention to technique. Section thickness affects Congo red affinity and both dichroism as well as birefringence should be considered when interpreting staining reactions. Thioflavine-T may be the preferred stain for identification of small deposits of amyloid. Variation in section thickness markedly affected the degree of potassium permanganate oxidation.
Canine Transmissible Venereal Sarcoma: Tumor Cell and Infiltrating Leukocyte Ultrastructure at Different Growth Stages
Authors: Hill D. L. , Yang T. J. , Wachtel A. 
Published: January 2017

Electron microscopic study of the canine transmissible venereal sarcoma (N = 26) at different stages of growth showed that tumors in a progressive phase of growth (N = 12) were comprised mostly of large, round cells with prominent nuclei and nucleoli, a few spindle-shaped cells and collagen fibers, focal areas of necrosis, and lymphocyte infiltrates. Regressing tumors (N = 9) had the fewest viable round cells, greater numbers of infiltrating leukocytes, and were comprised almost entirely of connective tissue (collagen bundles) in the latest stages of regression. The infiltrating leukocytes consisted primarily of lymphocytes, some eosinophils, and neutrophils, but very few macrophages. Round-cell nuclei contained numerous perichromatin and interchromatin granules. Their cytoplasm often had annulate lamellae complexes and large deposits of glycogen. Loosely packed tumor cells had extensive proliferation and elongation of cytoplasmic extensions (filopodia). Evidence for cell-mediated tumor cell lysis was demonstrated by degenerative changes in tumor cells which were closely apposed to lymphocytes. Spindle-shaped cells in regressing tumors had intravacuolar collagen fragments, suggesting a possible degradative capacity by these cells.
Effect of Ivermectin Treatment on Eosinophilic Pneumonia and Other Extra vascular Lesions of Late Strongylus vulgaris Larval Migration in Foals
Authors: Turk M. A. M. , Klei T. R. 
Published: January 2017

Eighteen parasite-free pony foals were infected orally with 500 third stage larvae of Strongylus vulgaris. At 56 days after infection, six ponies were treated with intramuscular ivermectin (22,23-dihydroavermectin B1); six were treated with oral ivermectin; and six were not treated. Necropsy was done 91 days after infection to study the pathologic effects of migrating S. vulgaris larvae and to determine the efficacy of ivermectin in attenuation of 5. vulgaris-induced lesions. Larval migration induced eosinophilic inflammation of the liver, spleen, mesenteric, colic and cecal lymph nodes, and small and large intestine. Previously unreported parasitic lesions included eosinophilic pneumonia with eosinophilic granulomas and pulmonary lymphoid nodules. S. vulgaris larvae were observed in eosinophilic granulomas in the lung, epicardium, liver, and intestinal serosa. Injectable and oral ivermectin formulations were equally effective in reduction of these lesions.
The Effects of Phenylbutazone on the Morphology and Prostaglandin Concentrations of the Pyloric Mucosa of the Equine Stomach
Authors: Meschter C. L. , Gilbert M. , Krook L. , Maylin G. , Corradino R. 
Published: January 2017

Phenylbutazone, a nonsteroidal anti-inflammatory drug known to produce gastric ulcers, was administered intravenously (13.46 mg/kg body weight) daily to 12 horses. Horses were euthanatized daily after 24,48,72, and 96 hours following the initial injection. Eight untreated horses served as controls. Small multifocal pyloric erosions were seen after 24 hours and then progressed in severity over time. The erosions were characterized by sloughing of the surface epithelium, subepithelial bleb formation, necrosis of the lamina propria, degeneration of the walls of subsurface capillaries, and microthrombosis of the capillaries of the pyloric mucosa. Large numbers of neutrophils with abundant fibrin and cellular debris were present at the erosion sites. Eroded pyloric mucosa and adjacent macroscopically intact mucosa were examined ultrastructurally. In both the mac-roscopically eroded mucosa and multifocally in the adjacent macroscopically uneroded mucosa, there was cellular swelling of the endothelium, pericytes, and smooth muscle cells of arterioles. In capillaries and post-capillary venules, the endothelium ranged from swollen to lysed and necrotic. Extensive extravasation of erythrocytes and edema were seen. These lesions were not seen in the control horses. Phenylbutazone produces a microvascular injury that is associated with the formation of pyloric erosions in horses. The pyloric mucosa of six horses was assayed for prostacyclin and prostaglandin E2 at 48 and 96 hours following the initial injection. There was no statistically significant difference between prostaglandin concentrations in the mucosa of control and treated horses. It was concluded that there was little correlation between pyloric mucosal prostaglandin concentrations and pyloric erosions after 48 hours.
Non Insulin-Dependent Diabetes Mellitus (Type 2) Secondary Failure. Metformin-Glibenclamide Treatment
Authors: Guagnano M.T. , Pace-Palitti V. , Manigrasso M.R. , Merlitti D. , Parra H.M. Soto , Sensi S. 
Published: January 2017

The goal of sulphonylurea (S) treatment in Non-Insulin-Dependent Diabetes Mellitus (NIDDM - type 2 diabetes) subjects should be to obtain a satisfactory glycaemic control (fasting glycaemic levels < 140 mg%). The loss of an adequate blood glucose control after an initial variable period of S is known as secondary failure (SF). The number of SF are extremely variable among different trials for many reasons, some of which are patient-related: increased food intake, weight gain, non-compliance, poor physical activity, stress, diseases and/or impaired pancreatic beta cell function, desensitization after S chronic therapy, reduced absorption, concomitant therapies. Many therapeutic strategies have been proposed to achieve an adequate metabolic control in type 2 diabetes patients: switch to intensive insulin therapy and subsequent return to S therapy; association with insulin; association with sulphonylureas plus biguanides. The association biguanides and S, in particular glibenclamide plus metformin, is now widely used by diabetologists in SF since glibenclamide improves insulin secretion while metformin exerts its antidiabetic effect by different mechanisms.
Cyclosporin A-Induced Autoimmunity in the Rat: Central versus Peripheral Tolerance
Authors: Damoiseaux J.G.M.C. 
Published: January 2017

Cyclosporin A-induced autoimmunity (CsA-AI) is a thymus dependent and T cell-mediated autoimmune disease that is readily induced in rodents (1, 2) and also occurs in humans (3). Induction of CsA-AI requires total body X-irradiation, rescue with syngeneic or autologous bone marrow, and subsequent cyclosporin A (CsA) administration for about 4 weeks (4). Because the induction protocol involves bone marrow transplantation (BMT), CsA-AI is also referred to as syngeneic or autoimmune graft-versus-host disease (GvHD) (5). The CsA-AI model is being studied for three reasons. Firstly, the animal model, and in particular the chronic phase of the disease, has been reported to have several macroscopic and histopathologic similarities with human scleroderma (6,7). Secondly, CsA-AI is clinically and experimentally examined for its graft- versus-tumour potential against lympho-hematopoietic malignancies as well as metastatic breast cancer (8). And thirdly, CsA-AI has been very informative in terms of T cell development and tolerance induction, including central as well as peripheral control of autoreactivity (9, 10). In the present review, a summary of the characteristics of CsA-AI will be given. Next, the supposed mechanism of CsA for interference with central tolerance induction will be presented. Finally, the role of peripheral tolerance, and in particular dominant T cell tolerance as mediated by regulatory T cells, will be discussed in relation to induction of CsA-AI as well as to strain-related resistance to CsA-AI.
Cetirizine, a Second-Generation H1 Antagonist, Modulates Rantes and MCP-1 Levels in Allergic Rhinitis
Authors: Bruno G. , Andreozzi P. , Graf U. , Tega F. , Santangelo G. , Barucco M. , Bruno A. , Bracchitta S. 
Published: January 2017

Chemokines and their receptors are involved in several allergic diseases. We measured RANTES and MCP-1 levels in sera of allergic rhinitis patients, and we also evaluated the effect of cetirizine, a second-generation H1 antagonist, on these chemoattractant proteins. 15 subjects were studied (10 males and 5 females; mean age: 26.7 years). They were suffering from perennial or seasonal allergic rhinitis induced by Dermatophagoides pteronyssinus (8 patients) or by grasses (7 patients). RANTES and MCP-1 serum levels were detected with an enzyme immunoassay before and after two weeks of treatment with 10 mg of cetirizine daily, and again after two weeks of washout. Baseline serum levels of RANTES and MCP-1 chemokines were significantly higher (p < 0.02 and p = 0.007, respectively) in allergic patients than in the healthy control group. Cetirizine resulted in a significant decrease in RANTES (p < 0.02) and MCP-1 (p = 0.003) versus baseline values. There is an increase in RANTES and MCP-1 in allergic rhinitis, which is counteracted by cetirizine.
Serum Procalcitonin, Adenosine Deaminase and its Isoenzymes in the Aetiological Diagnosis of Pneumonia in Children
Authors: Hatzistilianou M. , Hitoglou S. , Gougoustamou D. , Rekliti A. , Tzouvelekis G. , Nanas C.H. , Catriu D. , Kotsis A. 
Published: January 2017

A prospective study was undertaken to assess the usefulness of leukocyte count, serum C-reactive protein (CRP), procalcitonin (PCT), and the activities of total adenosine deaminase (tADA) and its isoenzymes ADA1 and ADA2, in the aetiological diagnosis of pneumonia in children. The study included three groups. Group A consisted of 23 children with bacterial pneumonia, group B50 children with viral and mycoplasmal pneumonia and group C46 healthy children. On the first day of admission in the clinic, blood samples were collected before the start of antimicrobial treatment, for culture, serological tests, leukocyte count and for the determination of CRP and PCT levels, as well as tADA activity and its isoenzymes ADA1 and ADA2. According to our results, the mean leukocyte count and the mean concentrations of PCT and CRP were significantly higher in the children of group A than those in groups B and C. The admission serum PCT concentration has a higher sensitivity, specificity and positive predictive value for bacterial pneumonia than either CRP or the leukocyte count. The mean serum tADA, ADA1 and ADA2 activity in children of group A was not significantly different from those in group C, while the difference between groups B and C was statistically significant. In conclusion, we found that CRP is a good marker for screening various infectious diseases, but it cannot be used to distinguish between bacterial and viral infections. Serum PCT measurement might be a useful tool for the physician for the aetiological diagnosis of pneumonia in children. Measurements of serum tADA and ADA2 activity may provide useful additional diagnostic information on the aetiology of pneumonia so that appropriate antibiotic therapy can be given promptly. Further studies with larger patients groups are required to confirm our results.
Effectiveness of Montelukast versus Budesonide on Quality of Life and Bronchial Reactivity in Subjects with Mild-Persistent Asthma
Authors: Riccioni G. , Ballone E. , D'Orazio N. , Sensi S. , di Nicola M. , di Mascio R. , Santilli F. , Guagnano MT , Della Vecchia R. 
Published: January 2017

Insufficient data exist to evaluate the comparative effects of inhaled corticosteroids (ICS) versus leukotriene receptor antagonist (LTRA) on airway inflammation and quality of life (QoL). The aim of the study was to compare the effectiveness of montelukast compared to budesonide at different doses on QoL and bronchial reactivity in mild-asthmatic adult patients. 45 subjects with bronchial asthma were randomly assigned to a different treatment and divided in 3 treatment groups: A: 400 μg of budesonide twice a day; B: 10 mg of montelukast daily; C: 10 mg of montelukast daily plus 400 μg of budesonide twice a day. At the beginning of the study and at the end of the treatment period (16 weeks) all patients underwent complete clinical evaluation, pulmonary function testing and methacholine challenge test (MCHt). In group A the increase from baseline was 153.4%, in group C was 133.2%, and in group B 247.7%, the latter increase being statistically significant compared to that in the other 2 groups (p< 0.005 Wilcoxon test). In all domains the improvement in quality of life in the group treated with montelukast (group B) was significantly greater than that in the group treated with both medications (group C): in particular, the improvement was consistent in the symptoms (p< 0.01) and emotions (p< 0.01) domains, and weaker in the physical activity (p< 0.05). A similar difference was observed between group B and A, but only in the symptoms (p<0.01), emotions (p<0.01), and environmental stimuli domains (p<0.05). The personal perception of their own disease is important for a correct therapeutic management of asthma. In order to optimize the treatment, a complete adherence of the patient to the treatment itself is required, to be achieved through simplification of therapeutic schedule and easy administration of medications. Montelukast may be considered a valid alternative in the treatment of mild-persistent asthma, both for the clinical and functional benefits and for the great advantage of the once-daily dosage, which consistently improves the compliance with the chronic treatment of the disease.
Social Capital: Old Hat or New Insight?
Authors: Healy Tom 
Published: January 2017

Following work by James Coleman and Pierre Bourdieu in the 1980s, social scientists from different disciplinary backgrounds have engaged in a debate about the meaning and application of social capital. Questions arise about the coherence, novelty and analytical purchase of the term: there is a risk of overstretching the concept to include too much. Moreover, empirical measures and proxy variables are only very approximately matched to the underlying concept(s). Some applications of the concept lump together different strands of social behaviour and attitude and treats these as universally equivalent or ‘outside’ specific cultures, institutional settings, historical contexts and power structures. It is suggested that these problems cannot be entirely resolved and have parallel examples in all areas of empirical research in the social sciences. However, suggestions are made for greater trans-disciplinary research, dialogue and connection to policy and community practice in an Irish context. We can sum up our position as follows. Social capital has several adolescent characteristics: it is neither tidy nor mature; it can be abused, analytically and politically; its future is unpredictable; but it offers much promise.
Negotiating Boundaries or Drawing the Line? Transcending ‘Insider/Outsider’ Distinctions in Connemara
Authors: Moran Lisa 
Published: January 2017

This paper examines insider/outsider distinctions in a rural community in Connemara and argues that they are rooted in locality and are based upon conflicting knowledge cultures. Such distinctions are both contextual and fluid as they encompass a range of cultural factors and find expression through particular conventions on language use and everyday behavioural strategies. The insider/outsider nexus is continually negotiated in this community, and individuals are recognised as possessing degrees of insider and/or outsider status depending upon which particular modes of behaviour or linguistic practices may be seen as acceptable by the wider community in particular social situations. Qualitative data presented in this paper reveals that while some incomers to the region are viewed as ‘outsiders’ by more established members of the community, the degree to which this is the case frequently depends on whether they are perceived as sharing local people's ‘habitus’ prior to their entering the community. Instead of drawing strict lines of distinction between locals and incomers, both groups engage in regular ‘boundary-making’ by perpetuating locally-based practices and discourse structures, a process which verifies their sense of belonging and continually (re)defines and (re)constitutes the structures of discourse and action entered into in everyday life.