Current approaches in smart nano-inspired drug delivery: A narrative review

Background and Aim

The traditional drug delivery approach involves systemic administration of a drug that could be nonspecific in targeting, low on efficacy, and with severe side-effects. To address such challenges, the field of smart drug delivery has emerged aiming at designing and developing delivery systems that can target specific cells, tissues, and organs and have minimal off-target side-effects.

Methods

A literature search was done to collate papers and reports about the currently available various strategies for smart nano-inspired drug delivery. The databases searched were PubMed, Scopus, and Google Scholar. Based on selection criteria, the most pertinent and recent items were included.

Results

Smart drug delivery is a cutting-edge revolutionary intervention in modern medicines to ensure effective and safe administration of therapeutics to target sites. These hold great promise for targeted and controlled delivery of therapeutic agents to improve the efficacy with reduced side-effects as compared to the conventional drug delivery approaches. Current smart drug delivery approaches include nanoparticles, liposomes, micelles, and hydrogels, each with its own advantages and limitations. The success of these delivery systems lies in engineering and designing them, and optimizing their pharmacokinetics and pharmacodynamics properties.

Conclusion

Development of drug delivery systems that can get beyond various physiological and clinical barriers, as observed in conventionally administered chemotherapeutics, has been possible through recent advancements. Using multifunctional targeting methodologies, smart drug delivery tries to localize therapy to the target location, reduces cytotoxicity, and improves the therapeutic index. Rapid advancements in research and development in smart drug delivery provide wider and more promising avenues to guarantee a better healthcare system, improve patient outcomes, and achieve higher levels of effective medical interventions like personalized medicine.

Current management of diabetes patients with COVID-19

INTRODUCTION

Diabetes mellitus (DM) and the 2019 coronavirus (COVID-19) appear to interact in both directions. There is mounting proof that patients with DM have a worse COVID-19 prognosis than those without it. Pharmacotherapy is also known to affect in view of the possible interplay between drugs and the pathophysiology of the above conditions in a given patient.

AREAS COVERED

In this review, we discuss the pathogenesis of COVID-19 and its connections with diabetes mellitus. We also analyze the treatment modalities for COVID-19 and diabetes patients. The possible mechanisms of the different medications and their management limitations are also systematically reviewed.

EXPERT OPINION

COVID-19 management as well as its knowledge base is changing constantly. The Pharmacotherapy and the choice of drugs also need to be specifically considered in view of the concomitant presence of these conditions in a patient. Anti-diabetic agents must be carefully evaluated in diabetic patients in view of the disease's severity, blood glucose level, appropriate treatment, and other components that could aggravate adverse events. A methodical technique is anticipated to enable the safe and rational use of drug therapy in COVID-19-positive diabetic patients to take.

Current management of diabetes patients with COVID-19

INTRODUCTION

Diabetes mellitus (DM) and the 2019 coronavirus (COVID-19) appear to interact in both directions. There is mounting proof that patients with DM have a worse COVID-19 prognosis than those without it. Pharmacotherapy is also known to affect in view of the possible interplay between drugs and the pathophysiology of the above conditions in a given patient.

AREAS COVERED

In this review, we discuss the pathogenesis of COVID-19 and its connections with diabetes mellitus. We also analyze the treatment modalities for COVID-19 and diabetes patients. The possible mechanisms of the different medications and their management limitations are also systematically reviewed.

EXPERT OPINION

COVID-19 management as well as its knowledge base is changing constantly. The Pharmacotherapy and the choice of drugs also need to be specifically considered in view of the concomitant presence of these conditions in a patient. Anti-diabetic agents must be carefully evaluated in diabetic patients in view of the disease's severity, blood glucose level, appropriate treatment, and other components that could aggravate adverse events. A methodical technique is anticipated to enable the safe and rational use of drug therapy in COVID-19-positive diabetic patients to take.

Prophylactic use of hydroxychloroquine (HCQS) in COVID-19: A questionnaire-based study in health care professionals

Background:

Coronavirus disease-2019 (COVID-19) pandemic has engulfed the whole world with millions getting infected and losing their lives. Health care professionals (HCPs) who are in the front line of fighting with COVID-19 are particularly vulnerable and it is crucial to protect them from COVID-19. In this regard, the Indian Council of Medical Research (ICMR) has recommended hydroxychloroquine (HCQS) chemoprophylaxis in HCPs. However, considering the lack of sufficient evidence the HCP are in a dilemma about this aspect. Moreover, there is a paucity of data on use of HCQS as a chemoprophylaxis among Indian HCP. Hence, this study was carried out to study the extent of use and also the perception of Indian HCP toward use of HCQS as a chemoprophylaxis for COVID-19.

Materials and Methods:

This was a cross-sectional study done on 205 HCPs working across India. The responses were collected electronically using a prevalidated semi-structured questionnaire.

Results:

62.9% (129/205) respondents reported having taken HCQS chemo-prophylaxis for COVID-19 while 34.7% (76/205) did not take it. Among HCP, who did not take the prophylaxis, the main reasons cited were concern about adverse effects (61.5%) and lack of robust evidence (24%). Only 14% of respondents felt that there was sufficient evidence to justify use of HCQS for prophylaxis while an overwhelming majority (86%) felt otherwise or were uncertain.

Conclusion:

The majority of participants felt that despite a lack of proven efficacy, ICMR guidelines on HCQS prophylaxis in COVID-19 are justified considering the pandemic situation. Our study also found that HCQS is well tolerated by participants and there was no reported serious adverse effect and cardiac-related side effects among them.