The Welcan values of 15 minutes for ZN and 5 minutes for FM microscopy, with modifications for positive smears based on the grades of positivity, were applied to this workload.
Staining was evaluated in a semi-quantitative manner, using three grades of positivity: strong, moderate, and weak.
The changes in the secretion of IFN-γ or IP-10 in response to QFT-IT antigens or RD1 selected peptides did not depend on the grade of smear positivity, sputum culture positivity or severity of TB disease based on the chest X-ray results at the time of recruitment (data not shown).
In the current study, patients with grade 3 experienced poor clinical outcomes compared with patients with grade 1 and 2. The different clinical outcomes resulted from high relapse rate or false negative uptakes in patients with grade 3. The definition of positivity using grade 1 2 reported relatively low PPV with high NPV compared to quantitative assessments in ROC analysis.
DBC1, H4K16Ac, and H3K9Ac but not p53 showed lower grades of IHC positivity in inflammatory cells.
In relation to dysplasia, a morphological marker of neoplastic lesions, we observed a direct (positive) trend between the grade of dysplasia and the positivity of the biomarker, though there was no significant correlation between both parameters.
The level of stromal immunostaining was graded by scoring the percentage of positivity into two groups: negative (<10%) and positive (>10%).
While the presence of necrosis did not significantly influence the grade of IL-12 mRNA positivity, IFN-γ, TNF-α and IL-4 mRNA expression were markedly upregulated in necrotic granulomas (Table 2).
The level of stromal components immunostaining was graded by scoring the percentage of positivity into two groups: negative (<10% of stromal cells and negative staining of the stroma) and positive (>10% of stromal cells or/and moderate or strong staining of the stroma).
Table depicts grade, histological type, proportion and range of positivity.
