Sentence examples for mutation is negative from inspiring English sources

However, in diseases for which CNMs are rare, their search is important for diagnostic confirmation if screening for point mutation is negative or incompletely conclusive.

BRAF mutational analysis was performed on thyroid nodules with an FNA diagnosis of AUS/FLUS and followed by RAS (NRAS codons 12, 13, and 61, HRAS codons 12, 13, and 61, and KRAS codons 12, 13, and 61) mutational analysis when BRAF mutation was negative.

The age at onset of thyroid cancer in two Japanese CNC patients was 72 and 73 years old, in whom PRKAR1A mutation was negative in one and not available in the other.

Transferrin saturation was within the reference range and the HFE gene mutation was negative.

JAK2 mutation was negative.

MYD-88 L265P mutation was negative in all of the 45 studied cases.

The genetic test for multiple endocrine neoplasia type 1 syndrome mutation was negative.

Genetic screening for protein C or S deficiency, antiphospholipid and anticardiolipin antibodies and G20210A prothrombin mutation were negative and JAK2V617F mutation was not studied in these patients [ 25].

Immunostaining of glioblastomas revealed binding in the case with the type III EGFR mutation, the five other specimens without the mutation being negative despite overexpression of EGFR in some cases.

In other words, elevated transposition serves to amplify both deleterious and advantageous fitness changes but this accelerates the extinction of elements, particularly if the mean fitness effect of IS-induced mutations is negative.

Recent studies have demonstrated that, in advanced colorectal carcinoma (CRC) patients, extended RAS (in KRAS exons 2 4 and NRAS exons 2 4) and BRAF mutations are negative predictors for anti-EGFR treatment efficacy and negative prognostic factor, respectively.