Advancing against drug-resistant tuberculosis: an extensive review, novel strategies and patent landscape.

Drug-resistant tuberculosis (DR-TB) represents a pressing global health issue, leading to heightened morbidity and mortality. Despite extensive research efforts, the escalation of DR-TB cases underscores the urgent need for enhanced prevention, diagnosis, and treatment strategies. This review delves deep into the molecular and genetic origins of different types of DR-TB, highlighting recent breakthroughs in detection and diagnosis, including Rapid Diagnostic Tests like Xpert Ultra, Whole Genome Sequencing, and AI-based tools along with latest viewpoints on diagnosis and treatment of DR-TB utilizing newer and repurposed drug molecules.

Estimation of Scopoletin from Roots of Argyreia nervosa (Burm. fill.) Bojer Using a Validated HPLC-Fluorescence Method Optimized Using the Design of Experiment Approach.

Background: Argyreia nervosa (Burm. Fil.) Bojer.

Potent anti-inflammatory effects of an H S-releasing naproxen (ATB-346) in a human model of inflammation.

ATB-346 is a hydrogen sulfide-releasing non-steroidal anti-inflammatory drug (H S-NSAID) derived from naproxen, which in preclinical studies has been shown to have markedly reduced gastrointestinal adverse effects. However, its anti-inflammatory properties in humans compared to naproxen are yet to be confirmed. To test this, we used a dermal model of acute inflammation in healthy, human volunteers, triggered by ultraviolet-killed Escherichia coli.

Intradermal lipopolysaccharide challenge as an acute in vivo inflammatory model in healthy volunteers.

Aims: Whereas intravenous administration of Toll-like receptor 4 ligand lipopolysaccharide (LPS) to human volunteers is frequently used in clinical pharmacology studies, systemic use of LPS has practical limitations. We aimed to characterize the intradermal LPS response in healthy volunteers, and as such qualify the method as local inflammation model for clinical pharmacology studies.

Methods: Eighteen healthy male volunteers received 2 or 4 intradermal 5 ng LPS injections and 1 saline injection on the forearms.

Monocytes, macrophages, dendritic cells and neutrophils: an update on lifespan kinetics in health and disease.

Phagocytes form a family of immune cells that play a crucial role in tissue maintenance and help orchestrate the immune response. This family of cells can be separated by their nuclear morphology into mononuclear and polymorphonuclear phagocytes. The generation of these cells in the bone marrow, to the blood and finally into tissues is a tightly regulated process.

Longevity and replenishment of human liver-resident memory T cells and mononuclear phagocytes.

The human liver contains specialized subsets of mononuclear phagocytes (MNPs) and T cells, but whether these have definitive features of tissue residence (long-term retention, lack of egress) and/or can be replenished from the circulation remains unclear. Here we addressed these questions using HLA-mismatched liver allografts to discriminate the liver-resident (donor) from the infiltrating (recipient) immune composition. Allografts were rapidly infiltrated by recipient leukocytes, which recapitulated the liver myeloid and lymphoid composition, and underwent partial reprogramming with acquisition of CD68/CD206 on MNPs and CD69/CD103 on T cells.

Inherited and Environmental Factors Influence Human Monocyte Heterogeneity.

Blood monocytes develop in the bone marrow before being released into the peripheral circulation. The circulating monocyte pool is composed of multiple subsets, each with specialized functions. These cells are recruited to repopulate resident monocyte-derived cells in the periphery and also to sites of injury.

Variations in the Phagosomal Environment of Human Neutrophils and Mononuclear Phagocyte Subsets.

The phagosome microenvironment maintains enzyme activity and function. Here we compared the phagosomal pH of human neutrophils, monocytes, dendritic cells (DC), and monocyte-derived cells. An unexpected observation was the striking difference in phagosomal environment between the three monocytes subsets.

Fine needle aspirates comprehensively sample intrahepatic immunity.

Objective: In order to refine new therapeutic strategies in the pipeline for HBV cure, evaluation of virological and immunological changes compartmentalised at the site of infection will be required. We therefore investigated if liver fine needle aspirates (FNAs) could comprehensively sample the local immune landscape in parallel with viable hepatocytes.

Design: Matched blood, liver biopsy and FNAs from 28 patients with HBV and 15 without viral infection were analysed using 16-colour multiparameter flow cytometry.

Monocyte and Neutrophil Isolation, Migration, and Phagocytosis Assays.

This article describes methods for isolating mouse monocytes and neutrophils, as well as in vitro protocols for measuring cell phagocytosis, migration, and polarization. The method employed here for the isolation of naive phagocytes overcomes many of the difficulties previously encountered concerning phagocyte activation. Three in vitro protocols are provided for the analysis of cell migration, one requiring no specialized equipment, one requiring a modified Boyden chamber, and the other employing a flow chamber, which measures cell adhesion, rolling, and migration.

Oral bioavailability enhancement of agomelatine by loading into nanostructured lipid carriers: Peyer's patch targeting approach.

Agomelatine (AGM) is a new antidepressant drug with a novel mechanism of action and fewer side effects compared with older antidepressants. AGM is a melatonin receptor (MT1 and MT2) agonist and 5-hydroxytryptamine receptor (5-HT) antagonist. In the present study, the enhancement of the oral bioavailability of AGM was formulated and loaded into nanostructured lipid carriers (NLCs), using ultrasonication method.

Nanomedicine for Intranasal Delivery to Improve Brain Uptake.

Intranasal drug delivery system provides distinct advantage over conventional drug delivery system for a drug that is pharmacokenetically or biologically unstable. Major concern for the treatment of central nervous system diseases is, low concentration of therapeutically active molecule within brain as blood brain barrier is creating obstacle, where intranasal drug delivery provides direct transport of therapeutically active moiety into brain via olfactory or trigeminal pathway. Nasal mucosa provides distinct advantages like improved bioavailability, law dose and quick onset of action and high patient compliance, and the major disadvantage is residence time of drug and irreversible entrapment of drug.

The fate and lifespan of human monocyte subsets in steady state and systemic inflammation.

In humans, the monocyte pool comprises three subsets (classical, intermediate, and nonclassical) that circulate in dynamic equilibrium. The kinetics underlying their generation, differentiation, and disappearance are critical to understanding both steady-state homeostasis and inflammatory responses. Here, using human in vivo deuterium labeling, we demonstrate that classical monocytes emerge first from marrow, after a postmitotic interval of 1.

IncobotulinumtoxinA Injection for Temporomandibular Joint Disorder.

Objectives: Temporomandibular disorder (TMD) involves dysfunction of the temporomandibular joint and associated muscles of mastication causing pain with chewing, limitation of jaw movement, and pain. While the exact pathophysiology of TMD is not completely understood, it is thought that hyperfunction of the muscles of mastication places stress on the temporomandibular joint, leading to degeneration of the joint and associated symptoms. We hypothesize that chemodenervation of the muscles of mastication with IncobotulinumtoxinA (Xeomin) will decrease the stress on the temporomandibular joint and improve pain associated with temporomandibular joint and muscle disorder (TMJD).

Directed balloon cytology of the esophagus: A novel device for obtaining circumferential cytologic sampling.

Objective: Current methods of obtaining esophageal cytology include brush biopsy and blind balloon sampling, among others. These methods can be time-consuming if performed in accordance with acknowledged standards. Further, exact site localization can prove to be difficult.

Gender differences in onabotulinum toxin A dosing for adductor spasmodic dysphonia.

Objectives/hypothesis: The objective of this study was to determine the influence of gender on onabotulinum toxin A dosing for the treatment of adductor spasmodic dysphonia symptoms.

Study Design: Retrospective review.

Methods: A chart review of the senior author's database of botulinum toxin injections was performed.

Laryngology in Art: The Portrait of Dr Wilhelm Mayer-Hermann.

Otto Dix's portrait of the laryngologist Dr Wilhelm Mayer-Hermann represents a shining example of Neue Sachlichkeit, or New Objectivity, offering a return to unsentimental reality and a focus on the objective world, as opposed to the more abstract and idealistic tendencies of expressionism. However, precious little is known about the subject of the portrait. This article examines the portrait and attempts to shed light on the life and career of the Dr Wilhelm Mayer-Hermann.

Subglottic Squamous Cell Carcinoma: A Population-Based Study of 889 Cases.

Objective: Subglottic squamous cell carcinoma (SCCa) is a rare malignancy representing <5% of all laryngeal cancers. Patients often present with late-stage disease, and survival outcomes are reportedly worse than those for SCCa in other regions of the larynx.

Study Design: Analysis of a population-based tumor registry.

Endoscopic palliative decompression of the cavernous sinus in a rare case of a metastatic renal cell carcinoma to the clivus.

We present a rare case of acute cavernous sinus syndrome due to a renal cell carcinoma metastasis to the clivus. This case highlights the role of palliative endoscopic endonasal decompression of the cavernous sinus to relieve cranial neuropathies, obtain tissue diagnosis, and for cytoreduction in preparation for additional adjuvant therapy.

Nodular lymphocyte predominant hodgkin lymphoma: biology, diagnosis and treatment.

Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) is an uncommon variant of classical Hodgkin lymphoma. It is characterized histologically by presence of lymphohistiocytic cells which have B-cell phenotype, are positive for CD19, CD20, CD45, CD79a, BOB.1, Oct.

Laryngeal chondrosarcoma: a population-based analysis.

Objectives/hypothesis: Laryngeal chondrosarcoma (LC) is a rare entity, reportedly comprising less than 1% of all laryngeal tumors. Consequently, the incidence and survival of patients with this slow-growing tumor has been difficult to study. Our objective was to evaluate incidence, organized by patient demographics, as well as long-term survival trends of this malignancy using a population-based database.