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Objective: Obstructive sleep apnea (OSA) is a respiratory disorder with multiple clinical outcomes and is now being recognized as a serious health concern across the globe. However, the mechanisms of its pathophysiology are still elusive. Also, to date, evidence of miRNA regulation of sleep apnea in the Indian sub-population is unknown. Methods: In this study, we investigated the expression pattern of certain potential obesity-linked miRNAs in OSA subjects. Seventy adult subjects (20 obese OSA, 20 non-obese OSA and 30 healthy) were selected for this study. Total RNA was extracted and the expression of miR-21, miR-27, miR-29 and let-7 (normalized with internal control RNU48) was analyzed by SYBR Green-based qPCR. Results: We selected miR-21, miR-27, miR-29 and let-7 for their documented role in obesity. Relative miRNA expression profiles revealed differential expressions of all four above mentioned miRNAs in both obese and non-obese OSA subjects compared to healthy controls. Statistical analysis revealed a significant correlation between miRNA expression with obesity-associated parameters in OSA subjects. Conclusion: Our study demonstrates the involvement of four miRNAs (miR-21, miR-27, miR-29 and let-7) as potential molecular players of obesity-associated OSA. Identification of miRNA targets and in-depth analysis of their molecular mechanism in disease pathogenesis is further warranted.
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Purpose: Acute myeloid leukemia (AML) is a heterogeneous disease with genetic profiling being the primary prognostic factor. The objective of this study was to examine if routinely acquired parameters may be used to improve the prognosis of AML prognosis. Methods: Karyotyping was performed using bone marrow-derived mononuclear cells of 244 de novo diagnosed AML patients and age, sex, total leukocyte count (TLC), platelet count and hemoglobin (Hb) levels at initial presentation were recorded. The patients were given standard treatment and overall survival (OS) for 1 year and 5 years were recorded. Results: As expected, patients with aberrant karyotype status had poor overall survival. Aneuploidy was strongly associated with poor patient survival; while patients presented with hyperploidy had significantly lower OS at both 1 year and 5 years of time points; hypoploidy was correlated only with poor 1 year OS. Interestingly, 146 patients with Hb levels ≤ 8 g/dl had significantly lower 1 year and 5 years OS compared to 95 patients with Hb levels ≥ 8 g/dl. Combining karyotype status or Hb levels with other parameters did not improve patient prognosis. Conclusion: In summary, our results show that in addition to karyotype status, Hb level is an independent prognostic marker that should also be considered for early identification of patients that may benefit from alternative therapies.
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Background: Data comparing tapentadol with an antidepressant is limited. A comparison of tapentadol with mirtazapine at different dose has not been performed, the other antidepressant in the same therapeutic class with a significant market share, has been undertaken. In the absence of relevant data to assess the place that tapentadol should occupy in the therapeutic arsenal, indirect comparisons are the most rigorous way to go. We conducted a study evaluate antidepressant and analgesic activity of tapentadol with mirtazapine at different doses in Swiss albino mice. Methods: Tapentadol was administered at 10, 20 and 40 mg/kg (i.p) once daily for 14 days to swiss albino mice of either sex. The immobility period for antidepressant activity of mice were recorded in forced swim test and reaction time for analgesic activity of mice were recorded in tail flick test of the control and drug treated group. The antidepressant and analgesic activity of tapentadol (10, 20, 40 mg/kg i.p) was compared with that of mirtazapine (3, 5, 7 mg/kg i.p), administered for 14 days. Results: Tapentadol produced better antidepressant at (20, 40 mg/kg), but less at 10 mg/kg and significant analgesic activity at all the three doses, as indicated by reduction in immobility times and increase in reaction time as compared to control. Mirtazapine produced no antinociceptive activity at 3 mg/kg, but significant at 5, 7 mg/kg and showed better antidepressant activity at all the three doses in mice. The result of this study indicates the better analgesic activity of tapentadol at all the doses and least antidepressant activity at 10 mg/kg, as compared to mirtazapine which has shown better antidepressant activity at all the three doses but no analgesic activity at 3 mg/kg. Conclusion: It can be concluded that tapentadol is a better drug in case of depression associated with pain compared to mirtazapine in mice.