Background & objectives:Basti (medicated enema) is a popular Ayurvedic intervention recommended for obesity. However, there are no data to show whether any physiological or biochemical changes occur following this treatment. This study was conducted to identify the immunological and metabolic changes in obese individuals after a therapeutic course of Basti.Methods:Thirty two obese individuals (18 and 60 yr) with a body mass index (BMI) ≥30 kg/m2 who received a therapeutic course of 16 enemas (Basti) followed by a specific diet and lifestyle regimen for a period of 32 days as their treatment for obesity, were enrolled in the study. Clinical examination, measurement of immune and metabolic markers were done before (S1), immediately after (S2) and 90 days after the completion of therapy (S3).Results:A significant reduction (P<0.001) in weight, BMI, upper arm and abdominal circumference was seen at S3, along with a decrease in serum interferon (IFN)-γ (P<0.02), interleukin (IL)-6 (P<0.02) and ferritin (P<0.05) and increase in IgM levels (P<0.02). Peripheral blood lymphocytes (PBLs) stimulated with anti-CD3 monoclonal antibodies showed significant increase in reactive oxygen species (ROS) generation and calcium flux after Basti. All organ function tests revealed no changes.Interpretation & conclusions:Our study documents that a therapeutic course of Basti modulates immune responses by regulating pro-inflammatory cytokines, immunoglobulins and functional properties of T-cells. These changes are associated with a reduction in the body weight which is maintained even after three months of treatment. The study also documents the safety of Basti procedure.
Immune dysfunction is hallmark of patients with non–small cell lung carcinoma (NSCLC). The molecular mechanism involved in COX-2– and PGE2-mediated production of immunosuppressive cytokine IL-10 is not well-understood. Our study addresses the involvement of T cell downstream signalling intermediates, cytokines (IL-10 and IFN-γ) and their transcription factors (T-bet and GATA-3) in COX-2–mediated regulation of lymphocyte functions in NSCLC patients. In comparison to healthy individual, a marked decrease in lymphocyte proliferation to anti-CD3 MAb was observed in NSCLC patients by thymidine incorporation assay. Using flow cytometry, decrease in intracellular calcium release with increase in reactive oxygen species was observed in lymphocytes of NSCLC patients. These patients showed increased IL-10 and PGE2 with reduced IFN-γ production by ELISA. Results demonstrated defect in regulation of transcription factors T-bet and GATA-3 as analysed by Western blotting (WB), immunoprecipitation and EMSA. Overexpression of p-p38, p-ERK and COX-2 were observed with diminished p-JNK by WB. IL-10/IFN-γ levels were found to be differentially regulated via p38 and ERK mitogen-activated protein kinase (MAPK) pathways in cooperation with COX-2. Inhibition of these pathways using selective inhibitors lead to increased lymphocyte proliferative response to anti-CD3 MAb and IFN-γ production with decrease in IL-10 production. Studies showed involvement of ERK, p38 and COX-2 pathways in high IL-10 production, driven by lung tumour derived PGE2. The selective COX-2 inhibitor rofecoxib showed ability to alter the cytokine balance by affecting regulation of T-bet and GATA-3 transcription factors.
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