diabetes, gestational [MeSH Terms] OR (diabetes [All Fields] AND gestational [All Fields]) OR gestational diabetes [All Fields] OR (gestational [All Fields] AND diabetes [All Fields]) AND insulin, isophane [MeSH Terms] OR (insulin [All Fields] AND isophane [All Fields]) OR isophane insulin [All Fields] OR (nph [All Fields] AND insulin [All Fields]) OR nphinsulin [All Fields]. The gene discussed is INS; the disease is diabetes mellitus.