[Zoledronic acid-based uveitis: a case report and a bibliography review]. / Uveitis por ácido zolendrónico: reporte de un caso y revisión de la bibliografía.

There are several treatment options for postmenopausic patients suffering from ostopenia or osteoporosis; one of them being inhibition of bone resorption using bisphosphonates. The most common side effects of these drugs are of gastrointestinal nature. There are, of course, other side effects that could jeopardize the function and integrity of other organs or systems. A case of a 58-year-old patient presenting zoledronic-acid induced uveitis symptoms is reported. The importance of this paper lies in that this complication is rather exceptional, in particular if associated with the biphosphonate in question.

[Interleukin-6 levels changes in cervicovaginal exudates in labor evolution]. / Cambios en la concentración de la interleucina 6 en exudados cervicovaginales en trabajo de parto.

OBJECTIVE: To evaluate the secretion of interleukin 6 (IL-6) in cervicovaginal fluid in a pseudocohort that emulates the evolution of the labor. MATERIAL AND METHOD: Samples of cervicovaginal fluid of patients with 20 to 40 weeks of gestation were taken, patients were classified in 5 strata of the development of the labor. Each stratum reflects the progressive activation of the uterine activity and the cervical changes. To each sample was made determination of IL-6 by means of the system Multiplex. The samples of patient with infection data were eliminated. RESULTS: 173 samples were included distributed in each one of the five strata. Basal secretion exists of IL-6 to the cervicovaginal fluid along the gestation, that doesn't modify until the active labor appears. Only when the uterine activity is manifested in form to regulate and effective, very significant increase is documented in the concentration of the IL-6 in the cervicovaginal fluid. CONCLUSIONS: The IL-6 it is a proinflammatory cytokine that increases in a specific way in the moment in that the effective uterine activity begins, thus, it is an excellent candidate to be evaluated as marker presage of the event of normal labor and preterm.

[Properties of the chorioamnios zone inducing premature membranes rupture]. / Propiedades de la zona del corioamnios que inducen la rotura prematura de membranas.

Premature membrane rupture (PMR) is one of the most serious public health problems in the world, ocurring in 10% of all pregnancies. PMR has important adverse effects on maternofetal morbidity-mortality, as it has been estimated that it accounts on the whole for 70% and 40% of neonatal morbidity and mortality, respectively. PMR treatment is empirical, as its aetiology is unknown and its physiopathogenic description has just been initiated. This work analyzes the possibility of documenting functional differences in human chorio-amnios, comparing the zone where rupture most frequently occurs in PMR with some other distant chorio-amnionic zones and with equivalent zones of fetal membranes obtained from nine month pregnancies which have not undergone labor. The membrane zone which was nearest to the cervical os was identified and marked to be analyzed later for extracellular matrix metalloprotease (MMP) activity, histology and topographical MMP distribution. The MMP expression was quantitatively determined in explant culture media from membrane fragments using specific immuno-enzymatic essays (ELISA) and zymography. In addition, immuno-histochemistry methods were used to reveal MMP expression in the different tissues. This methods allowed us to show the existence of a decreasing MMP activity gradient, with the greatest value corresponding to the zone nearest to the cervical os in the membranes obtained from PMR cases. In membranes obtained from cesarean operations no characteristic pattern was documented and values were always lower than those obtained for PMR tissues. We conclude that there is a chorio-amnionic zone in which connective tissue degradation is specifically induced and which coincides with the membrane zone in contact with the cervical os.