Lumbalgia mecánica crónica en pacientes con vértebras limbus anterior: revisión de la literatura y presentación de tres casos clínicos / Chronic mechanical low back pain in patients with anterior limbus vertebra: a review of the literature and a study of three cases

La vertebra limbus es un hallazgo radiológico de prevalencia desconocida y significado incierto. Se trata de un defecto óseo que afecta al margen de los cuerpos vertebrados, con un fragmento desprendido de morfología triangular y bordes escleróticos. Se produce como consecuencia de una herniación intraósea del núcleo pulposo a través del anillo apofisario vertebral, antes de la fusión completa del cuerpo vertebral. En este artículo se describe tres casos clínicos de pacientes jóvenes (de 19, 20 y 22 años), reclusos en el Centro Penitenciario de Jóvenes (Barcelona, España), diagnosticados de lumbalgía mecánica crónica, y portadores de vértebras limbus lumbar. Nuestros hallazgos, y la revisión sistemática de la escasa literatura disponible, ponen en duda algunas convicciones actuales sobre la vértebra limbus.

The limbus vertebra is a radiological finding of unknown prevalence and uncertain significance. This is a bone defect which affects themargin of the vertebral bodies, with a triangular-shaped detached fragment and sclerotic margins. This occurs as a result of an intraosseus herniation of the nucleus pulposus through the vertebral apophyseal ring before the complete fusion of the vertebral body. In this paper we describe the clinical cases of three young patients(aged 19, 20 and 22), in mates of the Young Offenders Institute of Barcelona, Spain, who were diagnosed with chronic mechanical lowback pain and suffered from lumbar limbus vertebrae. Our findings, and the systematic review of the limited literature available, question some of the current beliefs about limbus vertebrae.

Lumbalgia mecánica crónica en pacientes con vértebras limbus anterior: revisión de la literatura y presentación de tres casos clínicos / Chronic mechanical low back pain in patients with anterior limbus vertebra: a review of the literature and a study of three cases

La vertebra limbus es un hallazgo radiológico de prevalencia desconocida y significado incierto. Se trata de un defecto óseo que afecta al margen de los cuerpos vertebrados, con un fragmento desprendido de morfología triangular y bordes escleróticos. Se produce como consecuencia de una herniación intraósea del núcleo pulposo a través del anillo apofisario vertebral, antes de la fusión completa del cuerpo vertebral. En este artículo se describe tres casos clínicos de pacientes jóvenes (de 19, 20 y 22 años), reclusos en el Centro Penitenciario de Jóvenes (Barcelona, España), diagnosticados de lumbalgía mecánica crónica, y portadores de vértebras limbus lumbar. Nuestros hallazgos, y la revisión sistemática de la escasa literatura disponible, ponen en duda algunas convicciones actuales sobre la vértebra limbus.(AU)

The limbus vertebra is a radiological finding of unknown prevalence and uncertain significance. This is a bone defect which affects themargin of the vertebral bodies, with a triangular-shaped detached fragment and sclerotic margins. This occurs as a result of an intraosseus herniation of the nucleus pulposus through the vertebral apophyseal ring before the complete fusion of the vertebral body. In this paper we describe the clinical cases of three young patients(aged 19, 20 and 22), in mates of the Young Offenders Institute of Barcelona, Spain, who were diagnosed with chronic mechanical lowback pain and suffered from lumbar limbus vertebrae. Our findings, and the systematic review of the limited literature available, question some of the current beliefs about limbus vertebrae.(AU)

Dietary intake increases serum levels of carboxymethil-lysine (CML) in diabetic patients.

INTRODUCTION: Advanced glycation end products are produced endogenously, in association with hyperglycemia and oxidative stress. They can also be generated during cooking or food processing and, once absorbed, alter protein function and promote inflammation. METHODS: We selected 40 healthy male subjects, 17 patients with type 2 diabetes of both sexes and 15 patients with type 1 diabetes of both sexes. Each participant underwent both a food frequency questionnaire (FFQ) and 24-hour dietary recall specially adapted for measuring CML intake, anthropometry, measurement of blood pressure and biochemical parameters in blood and urine. RESULTS: Serum CML levels were significantly higher in patients with diabetes compared to healthy subjects (p 0.04), showing a direct relationship between dietary intake and serum levels of CML in T2D patients (r 0.53 p 0.03). sCML levels correlated positively with length of diabetes mellitus, and inversely with body mass index (BMI). The most important dietary factor contributing to raise CML levels in these patients with diabetes was the consumption of milk powder. CONCLUSION: Serum levels of CML were found to be higher among diabetic subjects, associated to length of diabetes as expected, but also with the ingestion of foods containing higher amounts of ML. The consumption of milk powder in this group is a major determinant of increased serum levels.

Characterisation of the lpdA gene from Neisseria meningitidis by polymerase chain reaction, restriction fragment length polymorphism and sequencing.

P64k protein from Neisseria meningitidis is well recognised in sera from individuals convalescent from meningococcal disease or vaccinated with the Cuban antimeningococcal vaccine VA-MENGOC-BC. The presence of the protein in more than 80 meningococcal strains has also been verified. It is immunogenic in animal models and the antibodies elicited show bactericidal activity against meningococci. To further investigate at the molecular level whether lpdA, the gene coding for P64k protein, is conserved among different N. meningitidis strains, a total of 20 strains isolated from different geographic areas were differentiated on the basis of restriction fragment length polymorphism (RFLP) patterns after polymerase chain reaction (PCR) amplification of the lpdA gene and restriction endonuclease digestion with HpaII. Although a total of five different PCR-RFLP patterns were present, nucleotide sequence determination showed that identity levels were as high as 93-99% among the N. meningitidis strains analysed.

Investigation of an outbreak of endemic coccidioidomycosis in Brazil's northeastern state of Piauí with a review of the occurrence and distribution of Coccidioides immitis in three other Brazilian states.

An outbreak of coccidioidomycosis is described that involved three individuals and eight of their dogs, who had engaged in a successful hunt for nine-banded armadillos (Dasypus novemcinctus) in the environs of Oeiras, a community in Brazil's north eastern state of Piauí. Diagnosis was based on clinical, serological and cultural findings. Four of 24 soil samples collected in and around the burrow of an armadillo yielded cultures of Coccidioides immitis, thus establishing the endemicity of that mould in the state of Piauí. A literature review revealed that C. immitis, aside from that state, is endemic in three other Brazilian states--Bahia, Ceará and Maranhão. These four contiguous states have semi-arid regions where climatic conditions and their flora are similar to those that exist in C. immitis's endemic regions in North, Central and South America.