CSF oligoclonal band frequency in a Cuban cohort of patients with multiple sclerosis. comparison with Latin American countries and association with latitude.

Background: The diagnostic sensitivity of CSF specific oligoclonal bands (OCBs) in multiple sclerosis (MS), using state of the art methods, has been clearly established to be over 95% in patients with a predominantly Caucasian background. This is not the case for other geographical regions, where reports of OCB prevalence can be much lower, and a relationship between OCB frequency and latitude has been suggested.

Objective: The aim of the present study was to assess the frequency of OCBs in a cohort of MS patients evaluated at the Institute of Neurology and Neurosurgery (Havana, Cuba), and to review the scientific literature in order to investigate the possible relationship between OCB status and latitude in the region of Latin America.

Cerebral Small Vessel Disease Associated with Subclinical Vascular Damage Indicators in Asymptomatic Hypertensive Patients.

: Cerebral small vessel disease (CSVD) is frequent in patients with cardiovascular risk factors including arterial hypertension, and it is associated with vascular damage in other organs and the risk of stroke, cognitive impairment, and dementia. Early diagnosis of CSVD could prevent deleterious consequences. : To characterize CSVD associated with indicators of subclinical vascular damage in asymptomatic hypertensive patients.

Circulating autoantibodies against the NR2 peptide of the NMDA receptor are associated with subclinical brain damage in hypertensive patients with other pre-existing conditions for vascular risk.

Unlabelled: Arterial hypertension (HT) and other vascular pre-existing conditions (PEC) generate asymptomatic brain damage which increases the occurrence of stroke and cognitive decline. The aim of this work was to explore if serum antibodies against the NR2 subunit of the NMDA receptor (NR2Ab) could predict subclinical brain damage (SBD) in hypertensive patients with PEC. Forty seven neurologically asymptomatic hypertensive subjects were classified according to the number of PEC (retinopathy, overweight/obesity, diabetes mellitus and dyslipidemia).

[Cognitive diagnosis of cerebrovascular disease by event related potentials: anatomical sources that generate P300].

Introduction: Cerebrovascular disease causes different cognitive alterations. There is a need to develop tools that are capable of diagnosing them. One of them could be event related potentials.

[Some considerations about the possible pathological mechanisms at work in antiphospholipid syndrome and stroke].

Introduction And Development: Over the last two decades antiphospholipid syndrome (APS) has started to be recognized from the association of apparently anionic phospholipid-specific antibodies with thrombosis, thrombocytopenia and recurrent foetal losses. This syndrome affects patients with systemic lupus erythematosus and is considered to be an important cause of thromboembolic disease. Antiphospholipid antibodies are serum immunoglobulins that react with negatively charged phospholipids, albeit directly or by means of a cofactor, affect the coagulation system, and promote thrombosis.