An oral non-covalent non-peptidic inhibitor of SARS-CoV-2 Mpro ameliorates viral replication and pathogenesis in vivo.

Safe, effective, and low-cost oral antiviral therapies are needed to treat those at high risk for developing severe COVID-19. To that end, we performed a high-throughput screen to identify non-peptidic, non-covalent inhibitors of the SARS-CoV-2 main protease (Mpro), an essential enzyme in viral replication. NZ-804 was developed from a screening hit through iterative rounds of structure-guided medicinal chemistry.

Theranostics: aptamer-assisted carbon nanotubes as MRI contrast and photothermal agent for breast cancer therapy.

Breast cancer is one of the leading causes of death among women globally, making its diagnosis and treatment challenging. The use of nanotechnology for cancer diagnosis and treatment is an emerging area of research. To address this issue, multiwalled carbon nanotubes (MWCNTs) were ligand exchanged with butyric acid (BA) to gain hydrophilic character.

Resecting Lower Segment Inferior Vena Cava Leiomyosarcoma With Middle Segment Extension While Avoiding Renal Morbidity.

Primary leiomyosarcoma of the inferior vena cava (IVC) is a rare and aggressive mesenchymal tumor, with less than 400 reported cases to date. Complete resection of the tumor with clear margins is the only proven curative treatment, providing survival benefits. Nonetheless, leiomyosarcomas in the middle segment or those extending up to it within the inferior vena cava (IVC) frequently necessitate renal reimplantation or nephrectomy, with rates varying between 56% and 75%.

Exploring the Advantages and Techniques of Intraoperative Transcholecystic Methylene Blue Injection in Laparoscopic Cholecystectomy.

Introduction With the use of advanced instruments and techniques, the reported incidence of bile duct injury is low; however, the actual frequency might be slightly higher than reported. Most surgeons might encounter bile duct injury or bile duct-related complications in their early training days. Nevertheless, with newer techniques and technologies, cases of bile duct injuries have been mostly observed in open cholecystectomy.

Gallstone-Associated Histopathological Changes in Liver: A Prospective Observational Study.

Aim And Objectives: To assess the effect of gallstone disease on liver parenchyma and the prevalence and extent of liver pathology in cholelithiasis in our population at the Department of General Surgery, Indira Gandhi Institute of Medical Science (IGIMS), Patna.

Material And Methods: The present prospective observational study was conducted on 100 either-sex patients scheduled for open or laparoscopic cholecystectomy. In all the patients, laboratory and radiological investigations were performed.

A Path of Novelty from Nanoparticles to Nanobots: Theragnostic Approach for Targeting Cancer Therapy.

Pharmaceutical development of cancer therapeutics is a dynamic area of research. Even after decades of intensive work, cancer continues to be a dreadful disease with an ever-increasing global incidence. The progress of nanotechnology in cancer research has overcome inherent limitations in conventional cancer chemotherapy and fulfilled the need for target-specific drug carriers.

Nanomedicine at the Pulmonary Frontier: Immune-Centric Approaches for Respiratory Disease Treatment.

Respiratory diseases (RD) are a group of common ailments with a rapidly increasing global prevalence, posing a significant threat to humanity, especially the elderly population, and imposing a substantial burden on society and the economy. RD represents an unmet medical need that requires the development of viable pharmacotherapies. While various promising strategies have been devised to advance potential treatments for RD, their implementation has been hindered by difficulties in drug delivery, particularly in critically ill patients.

Primary hepatic functional neuroendocrine tumor in an elderly female: Case report.

Key Clinical Message: Primary hepatic neuroendocrine tumor, an exceptionally rare subtype, poses a diagnostic challenge. Oncological resections should be considered, even in elderly patients after following protocolized pre-operative optimizations.

Abstract: Neuroendocrine tumors (NETs) are rare tumors that primarily develop in the gastrointestinal and respiratory tracts.

Neurological manifestations of SARS-CoV-2: complexity, mechanism and associated disorders.

Background: Coronaviruses such as Severe Acute Respiratory Syndrome coronavirus (SARS), Middle Eastern Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) are associated with critical illnesses, including severe respiratory disorders. SARS-CoV-2 is the causative agent of the deadly COVID-19 illness, which has spread globally as a pandemic. SARS-CoV-2 may enter the human body through olfactory lobes and interact with the angiotensin-converting enzyme2 (ACE2) receptor, further facilitating cell binding and entry into the cells.

Role of F-FDG PET/CT in Guiding Surgical Management of Clinically Node Negative Neck (cN0) in Carcinoma Oral Cavity.

Conventional staging paradigm with clinical examination or imaging invariably leads to underestimation of occult metastatic neck disease in oral cavity carcinoma. The advantage of F-FDG PET/CT is in its ability to identify lymph nodes without morphological changes yet harboring occult metastases. We present findings of our study to evaluate diagnostic accuracy of F-FDG PET/CT, in detecting occult cervical lymph node metastasis in carcinoma oral cavity.

To compare neoadjuvant concurrent chemo-radiotherapy followed by surgery and neoadjuvant chemotherapy followed by surgery in carcinoma esophagus patients: A single institutional study in the Indian population.

Objective: This single institutional study compared neoadjuvant concurrent chemo-radiotherapy (NACCRT) and neoadjuvant chemotherapy (NACT) followed by surgery in locally advanced middle and lower-1/3 carcinoma esophagus patients in terms of toxicity, clinical response, operative complications, disease downstaging, resection rates, pathological response, recurrence, and survival.

Methods: This randomized prospective comparative study comprised 40 consecutive patients divided equally between two study arms NACCRT (n = 20; 41.4 Gy radiation dose; carboplatin area under the curve (AUC) 2/paclitaxel 50 mg/m; 5 cycles) and NACT (n = 20; carboplatin AUC 5/paclitaxel 175 mg/m; 2 cycles) from March 2014 to December 2016.

Comparison of Extended Total Extraperitoneal (E-TEP) Repair and Trans-Abdominal Pre-Peritoneal (TAPP) Mesh Repair in Inguinal Hernia Repair.

Background And Aim: To find the superiority of extended total extraperitoneal (E-TEP) repair and trans-abdominal pre-peritoneal (TAPP) mesh repair in inguinal hernia repair.

Material And Methods: A total of 30 patients with a unilateral or bilateral inguinal hernia (IH), and recurrent IH, following open repair were studied. Out of 30 patients, laparoscopic TAPP or E-TEP mesh repair was performed in an equal number of inguinal hernia patients.

Advanced Overview of Biomarkers and Techniques for Early Diagnosis of Alzheimer's Disease.

The development of early non-invasive diagnosis methods and identification of novel biomarkers are necessary for managing Alzheimer's disease (AD) and facilitating effective prognosis and treatment. AD has multi-factorial nature and involves complex molecular mechanism, which causes neuronal degeneration. The primary challenges in early AD detection include patient heterogeneity and lack of precise diagnosis at the preclinical stage.

Role of Tau in Various Tauopathies, Treatment Approaches, and Emerging Role of Nanotechnology in Neurodegenerative Disorders.

A few protein kinases and phosphatases regulate tau protein phosphorylation and an imbalance in their enzyme activity results in tau hyper-phosphorylation. Aberrant tau phosphorylation causes tau to dissociate from the microtubules and clump together in the cytosol to form neurofibrillary tangles (NFTs), which lead to the progression of neurodegenerative disorders including Alzheimer's disease (AD) and other tauopathies. Hence, targeting hyperphosphorylated tau protein is a restorative approach for treating neurodegenerative tauopathies.

Outcomes of Rubber Band Ligation in Haemorrhoids Among Outdoor Patients.

Background: Out of all anorectal diseases, haemorrhoids are the most common benign disease. Haemorrhoids can be treated by various treatment modalities like medical, surgical, and instrumental. Instrumental treatment comprises rubber band ligation, sclerotherapy, and infrared and laser therapy.

Novel Technique of Laparoscopic e-TEP (Extended View Totally Extraperitoneal Repair) for Umbilical Hernia at a Tertiary Care Centre of Eastern India: a Case Series.

The field of abdominal wall hernias has undergone many innovations. Ventral hernias have conventionally been treated by open on-lay mesh hernioplasty, open retromuscular mesh hernioplasty (Rives-Stoppa procedure) and laparoscopic intraperitoneal mesh hernioplasty. To develop an alternative strategy where a mesh is placed in retromuscular space by minimal access technique of the laparoscopic extended view totally extraperitoneal approach (e-TEP).

In pursuit of next-generation therapeutics: Antimicrobial peptides against superbugs, their sources, mechanism of action, nanotechnology-based delivery, and clinical applications.

Antimicrobial peptides (AMPs) attracted attention as potential source of novel antimicrobials. Multi-drug resistant (MDR) infections have emerged as a global threat to public health in recent years. Furthermore, due to rapid emergence of new diseases, there is pressing need for development of efficient antimicrobials.

Blood-brain barrier: emerging trends on transport models and new-age strategies for therapeutics intervention against neurological disorders.

The integrity of the blood-brain barrier (BBB) is essential for normal central nervous system (CNS) functioning. Considering the significance of BBB in maintaining homeostasis and the neural environment, we aim to provide an overview of significant aspects of BBB. Worldwide, the treatment of neurological diseases caused by BBB disruption has been a major challenge.