Effect of aqueous extract of Aegle marmelos fruit and leaf on glycemic, insulinemic and lipidemic status of type 2 diabetic model rats.

BackgroundAegle marmelos is a popular fruit plant in the Indian subcontinent, various parts of which are traditionally used against various illnesses including diabetes mellitus (DM). However, the underlying mechanisms of the antidiabetic effects of the plant are not clear, especially in type 2 DM. The present study was undertaken to investigate the effect of aqueous extracts of A. marmelos fruits (AMFE) and leaves (AMLE) on glycemic, lipidemic, insulinemic, insulin resistance and ß-cell functional status of type 2 diabetic model rats. Methods An interventional study was designed using 20 type 2 diabetic rats. Type 2 DM was induced in Long Evans rats by a single intra-peritoneal injection of streptozotocin (90 mg/kg body weight) to 48 h old pups. Three months after induction of diabetes, the rats were divided into three independent groups: water-treated control group (n=6), AMLE-treated group (n=7) and AMFE-treated group (n=7). The rats were fed with extracts or water for 21 consecutive days and blood samples were collected at days 0 and 21 after an overnight fast. Data were expressed as mean±SD and analyzed by paired t-test or ANOVA as appropriate. Results There were significantly lower blood glucose values in AMLE and AMFE groups at Endpoint compared to Baseline (mmol/l, mean±SD, Baseline vs. Endpoint, 7.04±1.0 vs. 6.06±0.92; p=0.032 and 7.04±0.97 vs. 5.87±0.93; p=0.047). There were also significantly lower serum insulin levels in AMLE and AMFE groups at Endpoint compared to Baseline (µIU/mL, mean±SD, Baseline vs. Endpoint, 14.02±5.48 vs. 7.57±2.90; p=0.026 and 11.54±4.83 vs. 6.58±4.36; p=0.008). Insulin resistance (HOMA-IR) was significantly improved both in AMLE and AMFE groups at Endpoint compared to Baseline (mean±SD, Baseline vs. Endpoint, 4.22±1.68 vs. 2.05±0.90; p=0.021 and 3.69±1.79 vs. 1.69±1.61; p=0.013). However, ß-cell function or lipid profile did not show any significant alteration at Endpoint compared to Baseline in AMLE and AMFE groups. Conclusions Aqueous extracts of A. marmelos leaf and fruit have hypoglycemic property which seem to be mediated by lowering of insulin resistance. These findings highlight the therapeutic potential of the extracts of A. marmelos in human type 2 DM and provides strong impetus for further studies.

Phase distribution of chronic myeloid leukemia in Bangladesh.

BACKGROUND: Here, we report the phase distribution of chronic myeloid leukemia (CML), defined based on the World Health Organization criteria, among 63 patients in Bangladesh. All patients were diagnosed based on complete blood count, bone marrow examination including bone marrow aspiration and reverse-transcriptase polymerase chain reaction (RT-PCR). Out of 63 patients, 42 were male and 21 were female. The mean age of the subjects was 37.4 years, with an age range of 17-60 years. The majority of patients (86%) were classified in the chronic phase (CP), 7 (11%) in the accelerated phase (AP) and two (3%) in blast crisis (BC). The most frequent patient age ranges were 21-30 years for CP, 41-50 years for AP and 41-50 years for BC. RESULTS: The Philadelphia chromosome was detected in 48 patients by RT-PCR. The mean total leukocyte counts, platelet counts, hemoglobin levels and marrow blast frequencies were 101 × 10(9)/L, 409 × 10(9)/L, 12.2 g/dl and 2.8% for CP; 121 × 10(9)/L, 418 × 10(9)/L, 8.7 g/dl and 15% for AP and 311 × 10(9)/L, 396 × 10(9)/L, 9.2 g/dl and 26% for BC, respectively. CONCLUSION: This study concluded that most CML patients in Bangladesh are from a younger age group (31-40 years). In addition, males were more commonly affected, although females were afflicted with this disease at a younger age.

Rt-PCR method for diagnosis and follow-up of hematological malignancies: first approach in Bangladesh.

Nested reverse-transcriptase polymerase chain reaction (rt-PCR) was performed on 58 leukemia patients at BIRDEM Laboratory, as a pioneering work in Bangladesh. Thirty of themwere examined for the presence of BCR-ABL being clinically and morphologically diagnosed as chronic myeloid leukemia (CML) and 28 for PML-RARalpha fusion transcripts being clinically and morphologically diagnosed as acute promyelocytic leukemia (APL/ AML M3). The cases were selected for targeted therapy with imatinib mesylate and all-Trans retinoic acid (ATRA) to treat CML and APL respectively. Samples were received either before commencement or during therapy. In the positive cases, amplified DNA products were visible after gel electrophoresis and were reported accordingly. In case of BCR-ABL, positive results were found for five out of six (83.33%) untreated cases and 11 out of 24 (45.83%) treated cases. Positive results for PML-RARalpha were found for 12 out of 14 (85.70%) untreated cases and 11 out of 16 (68.75%) treated cases. A strong positive correlation was found between duration of treatment and negativity of PCR results in both the cases. In present times, the detection of minimal residual disease in patients undergoing treatment for hematological malignancies has become an important goal, not only to monitor the effectiveness of therapy but also to detect an impending relapse. This is the first time in Bangladesh that rt-PCR method is being employed to detect or monitor the presence of abnormal fusion genes in hematological malignancies.