One of the major obstacles to the success of cancer chemotherapy is the multidrug resistance (MDR) often resulting due to the overexpression of drug efflux transporter pumps such as P-glycoprotein (P-gp). Highly efficacious third generation P-gp inhibitors, like tariquidar, have shown promising results in overcoming the MDR. However, P-gp is also expressed in normal tissues like blood brain barrier, gastrointestinal track, liver, spleen and kidney. To maximize the efficacy of P-gp inhibitor and reduce the systemic toxicity, it is important to limit the exposure of P-gp inhibitors and the anticancer drugs to normal tissues and increase their co-localization with tumor cells. In this study, we have investigated the co-delivery of the P-gp inhibitor, tariquidar, and cytotoxic drug, paclitaxel, into tumor cells to reverse the MDR using long-circulating liposomes. Tariquidar- and paclitaxel-loaded long-circulating liposomes showed significant resensitization of the resistant variant for paclitaxel, which could be correlated with an increased accumulation of paclitaxel in tumor cells. These results suggest that the co-delivery of the P-gp inhibitor, tariquidar, and the cytotoxicity inducer, paclitaxel, looks like a promising approach to overcome the MDR.

BACKGROUND: India is in the intermediate hepatitis B virus endemicity zone with hepatitis B surface antigen prevalence among the general population ranges from 2% to 8%. Among health-care workers, seroprevalence is two to four times higher than that of the general population. AIM: The aim of the study was done to assess the knowledge, attitude, and practices (KAPs) of medical students regarding hepatitis B. MATERIALS AND METHODS: This is a cross-sectional study that was conducted from March to April 2018. Students were invited to the department on specified dates for awareness and immunization against hepatitis B. Their KAP was assessed with the help of a self-administered questionnaire. RESULTS: With a response rate of 81.3%, a total of 161 students participated in the study out of 198. Out of the 161 study participants, only 13 (8%) students had received a completed course of hepatitis B vaccination in the past, 30 (18.7%) students had a history of inability to complete the three doses of hepatitis B vaccination, and the rest 118 (73.3%) students were never immunized against hepatitis B. The knowledge about the risk of acquiring the disease at the hospital or high-risk setting was present in less than half of the students. The average knowledge score was 10.63 out of 16 and average healthy practice score was 2.94 out of 4. On applying Pearson correlation test, it was found that there was a positive correlation of knowledge and practices of the students (P = 0.012), implying that better knowledge of the disease has a positive effect on the practices exercised by an individual. CONCLUSION: Newly enrolled students and other individuals attached to a high-risk setting such as a medical institution should be screened for immunization status during initial medical examination as the number of unimmunized persons, especially against hepatitis B is high.

PTB patients need long-term follow-up to diagnose and treat functional impairment after cure.

Widespread subclinical and pre-rachitic vitamin D deficiency in children should be diagnosed by serum 25(OH)D levels and these levels should be maintained above 20 ng/mL to obtain optimal health benefits. There is a need for large randomized clinical trials to investigate the nonskeletal benefits of vitamin D deficiency.

We report a case of herpes simplex virus (HSV) encephalitis (HSE) in an 11-year-old boy who recovered with acyclovir therapy but developed relapse after 2 weeks. Choreoathetosis was the presenting feature of relapse. Response to antiinflammatory treatment was excellent. To the best of our knowledge, this is the first case of HSE relapse presenting with choreoathetosis reported from India. We describe the patient and review the literature on HSE and HSE relapse.