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Biomedical subjects

T Soler

Publications and source records attributed to T Soler.

At least 19 recordsLinked to original sources

Adaptation and standardization of the geriatric evaluation of relative's rating instrument (GERRI) for Spain.

BACKGROUND: The Geriatric Evaluation of Relative's Rating Instrument (GERRI) is a scale that evaluates the frequencies of alterations in behavior and functional capacity over a two-week period prior to exploration. The scale depends on the observations done by a relative o first caregiver of the studied subject. AIM: To adapt and standardize the GERRI for the use in the Spanish population as a part of a general project to standardized cognitive and functional tests. METHOD: The scale was administered to 444 subjects: 249 controls, 85 mild memory-cognitive disorders without dementia subjects (DWD) and 110 patients with Alzheimer-type dementia (ATD). An across-sectional statistical study was conducted in our samples stratified by age, gender and education. We evaluated the reliability of repeatability of the test, the internal reliability and the age, sex and education effects on the score of the different subscales. We also took into account the diagnostical validity in the Alzheimer disease and finally we correlated this test results with Mini mental test. RESULTS: The demographic variables age and schooling were found to affect the GERRI subscales differently. Gender did not reach significance. Internal consistency for the GERRI-Social, -Mood and -Cognitive were 0.8620, 0.7647 and 0.9259, respectively. CONCLUSION: The Spanish version of the GERRI may be applied to Spanish clinical series because of its reliable internal consistency and reproducibility.

Adult↗

Molecular characterization of the leucine plasmid from Buchnera aphidicola, primary endosymbiont of the aphid Acyrthosiphon pisum.

The complete sequence of the leucine plasmid of Buchnera aphidicola from the aphid Acyrthosiphon pisum (pLeu-BAp) is reported. Its gene organization was concordant with those of other leucine plasmids of Buchnera from aphids of the Aphidini and Macrosiphini tribes. Three inverted repeats are present in pLeu-BAp. Two of them are also present in pLeu from the family Aphididae: (i) SIR1, located downstream the leucine operon, resembles a rho-independent terminator of transcription, and (ii) LIR1, located upstream of the leucine operon, is suggested to be involved in transcription termination or messenger stability. The third, located near the putative ATGC repeats involved in the origin of replication, is specific in aphids of the Macrosiphini tribe. Phylogenetic analyses based on sequences of leuA, leuB, leuC, leuD, repA1 and ORF1 showed a closer relationship between Buchnera (A. pisum) and Buchnera (Diuraphis noxia). However, tree topologies indicate that the split between both aphid species took place soon after the formation of the Macrosiphini lineage.

Animals↗

[Pulmonary thromboembolism associated with antiphospholipid syndrome and systemic lupus erythematosus].

The association between systemic lupus erythematosus and antiphospholipid syndrome can cause several complications. We report a 45 years old woman, treated with steroids for a systemic lupus erythematosus. She presented with a clinical picture of a lupus pneumonitis and, subsequently, with the picture of a pulmonary thromboembolism. The diagnosis was confirmed by helicoidal computed axial tomography. The patient was treated with anticoagulants, with a favourable outcome.

Antiphospholipid Syndrome↗

Upper digestive tract dyspepsia and early gastric cancer.

AIM: The study of the frequency and evolution of upper digestive tract dyspepsia in a group of patients operated for early gastric cancer (EGC) and to perform a strategy of diagnosis for the patients with long term upper digestive tract dyspepsia. METHODS: Clinical data of 35 patients operated for EGC were retrospectively evaluated. The frequency, characteristics and evolution time of upper digestive tract dyspepsia, main when it began more than 6 months before surgery, were analyzed. Radiologic and endoscopic exams carried out for diagnosis were also evaluated. Histological diagnosis of surgical specimens were considered, looking for the presence of chronic atrophic gastritis, intestinal metaplasia, and peptic gastric ulcer. RESULTS: Long-term upper digestive tract dyspepsia was present in 27 patients (mean evolution time of 43.4 months). Clinical changes of previous symptoms that suggested gastric carcinoma were not found in 15 patients. Concurrent peptic gastric carcinoma were not found in 15 patients. Concurrent peptic gastric ulcer along with EGC was diagnosed by histology in 11 patients, and chronic atrophic gastritis and intestinal metaplasia were both present in the non-tumoral gastric mucosa in all cases. CONCLUSIONS: 1) Unspecific upper digestive tract dyspepsia is frequently found in patients with EGC. 2) Endoscopy should be the first exam performed in patients with upper digestive tract dyspepsia. 3) The patients with gastric ulcer, chronic atrophic gastritis or intestinal metaplasia must be submitted to sequential endoscopic follow-up.

Dyspepsia↗

[Molecular changes in adenocarcinoma of the small intestine associated with Peutz-Jeghers syndrome].

The presence of molecular alterations in the c-K-ras and p53 genes in a small bowel adenocarcinoma arising in a case of Peutz-Jeghers syndrome is reported. The absence of mutations at codon 12 and 13 of the c-K-ras gene in the hamartoma and carcinoma indicates that this oncogene does not contribute to its development. On the other hand, p53 protein overexpression was detected in a small proportion (5-10%) of adenocarcinoma cells. Our findings suggest that p53 inactivation occur in late stages of tumour progression.

Adenocarcinoma↗

Elastofibroma dorsi: clinical and pathologic aspects of two cases.

Elastofibroma dorsi is a benign entity that occurs most often in the subscapular area in elderly women. It has been a subject of controversy whether elastofibroma is a true neoplasm or a reactive fibrous lesion that produces abnormal elastic fibers. A biopsy should be performed to rule out sarcoma in all cases, but definitive treatment only requires simple surgical excision. We report two cases of elastofibroma and discuss the most relevant clinical and pathologic aspects.

Back↗

[Changes in the cellular proliferation of the healthy mucosa in patients with colorectal cancer].

AIM: To analyze differences in the proliferative pattern of normal mucosa between patients with colorectal cancer and healthy subjects. PATIENTS AND METHODS: By using flow cytometry we examined the proliferative pattern (Proliferative Index and S-Phase) in samples of normal mucosa from 34 patients operated on for colorectal cancer at our hospital and from 14 healthy subjects as a control group. RESULTS: All examined samples were diploid. The Proliferative Index and S-Phase in the Cancer Group were significantly higher than in the Control Group (16.7 +/- 5.9 vs 11.4 +/- 4, p < 0.003, and 11.9 +/- 3.9 us 6.6 +/- 3 p < 0.0004). CONCLUSIONS: These findings provide evidence for an altered proliferative pattern in the healthy colonic mucosa of patients with colorectal cancer.

Adult↗

Cyclic changes in pulmonary wedge v waves in dilated cardiomyopathy.

Right and left cardiac catheterization was performed in a 29-year-old male with dilated cardiomyopathy. During the procedure, prominent v waves appeared spontaneously in the pulmonary capillary wedge pressure recording with a simultaneous decrease in left ventricular systolic pressure. Left ventricular angiography showed moderate to severe mitral regurgitation and an ejection fraction of 22%. The right ventricular endomyocardial biopsy revealed histological findings consistent with dilated cardiomyopathy. Cardiac catheterization was repeated 9 months later, after a period of clinical improvement and a reduction in the right and left ventricular filling pressures was documented. The cyclic swings in the pulmonary capillary wedge pressure and in the left ventricular systolic pressure were not observed. Left ventriculography showed mild mitral regurgitation with an ejection fraction of 37%. Right ventricular endomyocardial biopsy documented a reduction in myofibrillar and nuclear hypertrophy. Thus, cyclic changes in pulmonary wedge v waves may be observed in dilated cardiomyopathy. This finding is consistent with cyclic variations in the degree of mitral regurgitation. Disappearance of this factor seems to be related to improvement in left ventricular contractility.

Adult↗

Risk of thrombosis during coronary angioplasty with low osmolality contrast media.

Studies in vitro have suggested that nonionic low osmolar contrast agents produce an increase in thrombogenicity. To determine the incidence of thrombi related to the use of nonionic low osmolar contrast media during coronary angioplasty, a double-blind randomized study was performed in 100 patients. Medication before angioplasty included oral aspirin (250 mg/day) in all cases. At the beginning of the procedure, aspirin (250 mg) and heparin (10,000 U) were intravenously administered. During the procedure patients were randomly assigned to receive either an ionic low osmolar contrast agent ioxaglate (n = 50), or a nonionic low osmolar contrast media iohexol (n = 50). The presence of thrombus was evaluated on the angiogram and on the guidewire immediately after its retrieval from the patients. Clinical, angiographic and procedural variables were similar in the 2 randomized groups. Angiographic evidence of thrombus was observed in 1 patient (2%) assigned to ioxaglate and in 11 patients (22%) assigned to iohexol (p less than 0.005). One patient (2%) from the ioxaglate group and 6 patients (12%) from the iohexol group showed thrombotic residues on the guidewire (p = not significant). Three patients had acute myocardial infarction, 1 patient (2%) receiving ioxaglate and 2 patients (4%) iohexol (p = not significant). There were no deaths. Thus, compared with an ionic low osmolar contrast media ioxaglate, the nonionic low osmolar contrast agent iohexol increases the incidence of thrombus during coronary angioplasty.

Angioplasty, Balloon, Coronary↗

[Lingual hamartoma].

The hamartoma is a benign tumor resulting of a mixture of normal and mature tissues and cells, sitting on an organ or tissue showing identical cell components. From the perusal done of the bibliography they appear as rare malformations basically compound of fibrous tissue, fat, acini of salivary glands and smooth muscle.

Aged↗

Structure of an isolated cerebellum and related nuclei developed within the matrix of a mature ovarian teratoma.

The distribution and organization of nerve cells in a microcerebellum and cerebellar stalk, developed within the matrix of a mature ovarian teratoma, were analyzed with respect to recent data on cerebellar histogenesis. It is postulated that a neuroectodermal germinal locus with proliferation capability similar to that found in the alar plates of the normal embryonic rhombencephalon was responsible for the formation of this highly organized neural tissue.

Adult↗