diff --git a/app/models/environment.rb b/app/models/environment.rb
index 24d35e4..9675024 100644
--- a/app/models/environment.rb
+++ b/app/models/environment.rb
@@ -474,7 +474,8 @@ class Environment < ActiveRecord::Base
   end
 
   def custom_person_fields
-    self.settings[:custom_person_fields].nil? ? {} : self.settings[:custom_person_fields]
+    self.settings[:custom_person_fields] = {} if self.settings[:custom_person_fields].nil?
+    self.settings[:custom_person_fields]
   end
 
   def custom_person_fields=(values)
diff --git a/lib/noosfero/api/entities.rb b/lib/noosfero/api/entities.rb
index 5f8636f..095dcb6 100644
--- a/lib/noosfero/api/entities.rb
+++ b/lib/noosfero/api/entities.rb
@@ -30,10 +30,30 @@ module Noosfero
         end
       end
 
+      class CategoryBase < Entity
+        root 'categories', 'category'
+        expose :name, :id, :slug
+      end
+
+      class Category < CategoryBase
+        root 'categories', 'category'
+        expose :full_name do |category, options|
+          category.full_name
+        end
+        expose :parent, :using => CategoryBase, if: { parent: true }
+        expose :children, :using => CategoryBase, if: { children: true }
+        expose :image, :using => Image
+      end
+
+      class Region < Category
+        root 'regions', 'region'
+      end
+
       class Profile < Entity
         expose :identifier, :name, :id
         expose :created_at, :format_with => :timestamp
         expose :image, :using => Image
+        expose :region, :using => Region
       end
 
       class UserBasic < Entity
@@ -55,21 +75,6 @@ module Noosfero
         expose :description
       end
 
-      class CategoryBase < Entity
-        root 'categories', 'category'
-        expose :name, :id, :slug
-      end
-
-      class Category < CategoryBase
-        root 'categories', 'category'
-        expose :full_name do |category, options|
-          category.full_name
-        end
-        expose :parent, :using => CategoryBase, if: { parent: true }
-        expose :children, :using => CategoryBase, if: { children: true }
-        expose :image, :using => Image
-      end
-
       class ArticleBase < Entity
         root 'articles', 'article'
         expose :id
diff --git a/lib/noosfero/api/helpers.rb b/lib/noosfero/api/helpers.rb
index b3f4df1..c3850db 100644
--- a/lib/noosfero/api/helpers.rb
+++ b/lib/noosfero/api/helpers.rb
@@ -103,8 +103,8 @@ require 'grape'
         present articles, :with => Entities::Article, :fields => params[:fields]
       end
 
-      def find_articles(asset)
-        articles = select_filtered_collection_of(asset, 'articles', params)
+      def find_articles(asset, method = 'articles')
+        articles = select_filtered_collection_of(asset, method, params)
         if current_person.present?
           articles = articles.display_filter(current_person, nil)
         else
diff --git a/lib/noosfero/api/v1/articles.rb b/lib/noosfero/api/v1/articles.rb
index 7bf9f7b..393f0f2 100644
--- a/lib/noosfero/api/v1/articles.rb
+++ b/lib/noosfero/api/v1/articles.rb
@@ -95,9 +95,8 @@ module Noosfero
 
             #TODO make tests for this situation
             votes_order = params.delete(:order) if params[:order]=='votes_score'
-            articles = select_filtered_collection_of(article, 'children', params)
-            articles = articles.display_filter(current_person, article.profile)
 
+            articles = find_articles(article, 'children')
 
             #TODO make tests for this situation
             if votes_order
diff --git a/plugins/juventude b/plugins/juventude
index b8cd738..08b594d 160000
--- a/plugins/juventude
+++ b/plugins/juventude
@@ -1 +1 @@
-Subproject commit b8cd73843df709c6e039e042d93b0bba843f58ec
+Subproject commit 08b594d907791da12c9097f355d8ee6a715bd14a
--
libgit2 0.21.2