Currently implementation of role based access control (RBAC) and attribute based access control (ABAC) is provided for marklogic, But I couldn't find how LBAC is implemented in marklogic.
MarkLogic does not have "Rows and Columns", so LBAC may not make sense.
However, if you consider that standard modelling in MarkLogic suggests that a single document is equivalent to a single row of a table, you could then consider this the same idea of a database 'object' in IBM. Then I would say that URI permissions on a single document is similar.
However, sit tight until MarkLogic 9 (Just 'around the corner', I believe). In this release, you have element-level security - security attached to particular elements/attributes based on xPath expressions. It may match your use-case (which of course, depends on how your data is modelled)
Internally, we have extensively tested the feature and it works wonderfully for security on subsets of a document. It is already mentioned publicly here: http://www.marklogic.com/press-releases/marklogic-9-transforms-database-market/