Update app.py

app.py

@@ -176,22 +176,30 @@ def render_ui():
         st.subheader("AI summary")
         st.info(res['ai_summary'])
 
-    # --- Genes tab
+        # --- Genes tab
     with tabs[1]:
         st.header("Gene / Variant signals")
-        for g in res['genes']:
-            # Skip non-dict entries (e.g., HTTP errors)
-            if not isinstance(g, dict):
-                continue
-            sym = g.get('symbol') or g.get('name') or ''
-            st.write(f"- **{sym}**")
-        if res['mesh_defs']:
+        # Filter out non-dict entries (e.g., errors)
+        valid_genes = [g for g in res['genes'] if isinstance(g, dict)]
+        if valid_genes:
+            for g in valid_genes:
+                sym = g.get('symbol') or g.get('name') or ''
+                st.write(f"- **{sym}**")
+        else:
+            st.info("No gene signals returned.")
+
+        # MeSH definitions (skip errors/non-strings)
+        mesh_list = [d for d in res['mesh_defs'] if isinstance(d, str) and d]
+        if mesh_list:
             st.markdown("### MeSH definitions")
-            for d in res['mesh_defs']:
+            for d in mesh_list:
                 st.write(f"- {d}")
-        if res['gene_disease']:
+
+        # DisGeNET links (skip non-dict entries)
+        gene_disease = [d for d in res['gene_disease'] if isinstance(d, dict)]
+        if gene_disease:
             st.markdown("### DisGeNET links")
-            st.json(res['gene_disease'][:15])
+            st.json(gene_disease[:15])
 
     # --- Trials tab
     with tabs[2]: