Plasma extracellular vesicles carry immune system-related peptides that predict human longevity.

Extracellular vesicles (EVs) play crucial roles in aging. In this National Institutes on Aging-funded study, we sought to identify circulating extracellular vesicle (EV) biomarkers indicative of longevity. The plasma EV proteome of 48 older adults (mean age 77.

Immune System-Related Plasma Pathogenic Extracellular Vesicle Subpopulations Predict Osteoarthritis Progression.

Certain molecules found on the surface or within the cargo of extracellular vesicles (EVs) are linked to osteoarthritis (OA) severity and progression. We aimed to identify plasma pathogenic EV subpopulations that can predict knee radiographic OA (rOA) progression. We analyzed the mass spectrometry-based proteomic data of plasma EVs and synovial fluid (SF) EVs from knee OA patients (n = 16, 50% female).

Synthesis and evaluation of drug-loaded silver nanoparticles as hemostatic agents to halt uncontrolled bleeding.

Objective: The aim of this research study was to formulate a cost-effective, stable, less toxic and more efficacious intravenous nanoformulation that could rapidly augment the process of hemostasis.

Significance: Silver nanoparticles (AgNPs) evoked platelet activation, whereas alum (AM) neutralized the plasma proteins, causing blood coagulation. Tranexamic acid (TA) inhibited fibrinolysis and stabilized the formed blood clot.

Testing of acute and sub-acute toxicity profile of novel naproxen sodium nanoformulation in male and female mice.

Nanodrugs offer promising alternatives to conventionally used over the counter drugs. Compared to its free form, therapeutic benefits, and gastric tissue safety of naproxen sodium nanoformulation (NpNF) were recently demonstrated. Essential regulatory safety data for this formulation are, however, not available.

Immune system-related plasma extracellular vesicles in healthy aging.

Objectives: To identify age-related plasma extracellular vehicle (EVs) phenotypes in healthy adults.

Methods: EV proteomics by high-resolution mass spectrometry to evaluate EV protein stability and discover age-associated EV proteins (n=4 with 4 serial freeze-thaws each); validation by high-resolution flow cytometry and EV cytokine quantification by multiplex ELISA (n=28 healthy donors, aged 18-83 years); quantification of WI-38 fibroblast cell proliferation response to co-culture with PKH67-labeled young and old plasma EVs. The EV samples from these plasma specimens were previously characterized for bilayer structure, intra-vesicle mitochondria and cytokines, and hematopoietic cell-related surface markers.

Cerium oxide nanoparticles improve the post-thaw quality and in-vivo fertility of Beetal buck spermatozoa.

The motility, health quality, and membrane disorders of spermatozoa are adversely affected during the process of semen cryopreservation due to the over-production of reactive oxygen species (ROS). Cerium oxide nanoparticles (CeONPs) possess properties to scavenge ROS either by mimicking specific antioxidants or by enhancing the activities of antioxidant enzymes. Therefore, we aimed at evaluating the effects of adding the CeONPs in the TRIS-citrate-yolk extender on in-vitro antioxidant enzyme activities, spermatozoa quality attributes, and in-vivo fertility of post-thaw Beetal buck spermatozoa.

Comprehensive characterization of pathogenic synovial fluid extracellular vesicles from knee osteoarthritis.

Synovial fluid (SF) extracellular vesicles (EVs) play a pathogenic role in osteoarthritis (OA). However, the surface markers, cell and tissue origins, and effectors of these EVs are largely unknown. We found that SF EVs contained 692 peptides that were positively associated with knee radiographic OA severity; 57.

Synthesis of Copper Oxide-Based Nanoformulations of Etoricoxib and Montelukast and Their Evaluation through Analgesic, Anti-Inflammatory, Anti-Pyretic, and Acute Toxicity Activities.

Copper oxide nanoparticles (CuO NPs) were synthesized through the coprecipitation method and used as nanocarriers for etoricoxib (selective COX-2 inhibitor drug) and montelukast (leukotriene product inhibitor drug) in combination therapy. The CuO NPs, free drugs, and nanoformulations were investigated through UV/Vis spectroscopy, FTIR spectroscopy, XRD, SEM, and DLS. SEM imaging showed agglomerated nanorods of CuO NPs of about 87 nm size.

Surface modified multifaceted nanocarriers for oral non-conventional cancer therapy; synthesis and evaluation.

Inflammatory cells orchestrate tumor niche for the proliferating neoplastic cells, leading to neoangiogenesis, lymphangiogenesis, tumor growth and metastasis. Emergence of severe side effects, multiple drug resistance and associated high cost has rendered conventional chemotherapy less effectual. The aim was to develop a multipurpose, less toxic, more potent and cheaper, oral non-conventional anticancer therapeutic.

Macrophage targeting with the novel carbopol-based miltefosine-loaded transfersomal gel for the treatment of cutaneous leishmaniasis: and analyses.

Objective: The purpose of this study was to develop novel carbopol-based miltefosine-loaded transfersomal gel (HePCTG) for the treatment of cutaneous leishmaniasis (CL) efficient targeting of leishmania infected macrophages.

Methods: Miltefosine-loaded transfersomes (HePCT) were prepared by ethanol injection method followed by their incorporation into carbopol gel to form HePCTG. The prepared HePCT were assessed for physicochemical properties including mean particle size, polydispersity index, zeta potential, entrapment efficiency, morphology, and deformability.

Hemostatic strategies for uncontrolled bleeding: A comprehensive update.

Uncontrolled bleeding remains the leading cause of morbidity and mortality across the entire macrocosm. It refers to excessive loss of blood that occurs inside of body, due to unsuccessful platelet plug formation at the injury site. It is not only limited to the battlefield, but remains the second leading cause of death amongst the civilians, as a result of traumatic injury.

Development of bactericidal spinel ferrite nanoparticles with effective biocompatibility for potential wound healing applications.

The current study was devised to explore the antibacterial activity and underlying mechanism of spinel ferrite nanoparticles (NPs) along with their biocompatibility and wound healing potentials. In this regard, nickel ferrite and zinc/nickel ferrite NPs were synthesized a modified co-precipitation method and were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy Energy-dispersive X-ray spectroscopy (EDX). The biocompatibility of the synthesized NPs with human dermal fibroblast (HDF) and red blood cells (RBCs) was assessed.

Anticancer therapeutics: a brief account on wide refinements.

The flustering rise in cancer incidence along with treatment anomalies has made cancer the second leading cause of death globally. The total annual economic impact of cancer is pronounced and is increasing. Besides the lack of proper curative therapy, treatment associated adverse effects, drug resistance, and tumor relapse are the instigations behind increased morbidity and mortality.

Pharmaceutical and Biomedical Applications of Green Synthesized Metal and Metal Oxide Nanoparticles.

Background: Due to the rapid growth in life threatening diseases such as cancer, diabetes, chronic wound and HIV/AIDS along with rise of side effects of the current treatments, world is now focusing to utilize new treatment options. Currently, the development of green nanotechnology field seems as a potential alternate for diseases diagnosis and treatment by preparation of various sizes and shapes of nanomaterials.

Objective: This review is to present the explored biological sources in synthesis of nanomaterials particularly metal and metal oxides nanoparticles and critical review of the applications of biosynthesized nanoparticles in pharmaceutical and biomedical fields.

Chitosan encapsulated ZnO nanocomposites: Fabrication, characterization, and functionalization of bio-dental approaches.

Current report is paramount contribution via nanotechnology to the existing remedies of health diseases. The lag in application of capped metallic oxide nanoparticles in restorative dentistry exist which is covered by this promising study. The uncapped and chitosan encapsulated ZnO nanoparticles were fabricated by facile co-precipitation method, and characterized using various biophysical strategies including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and Energy dispersive x-ray (EDX).

PEG capped methotrexate silver nanoparticles for efficient anticancer activity and biocompatibility.

Background: Nanocarriers endow tremendous benefits to the drug delivery systems depending upon the specific properties of either component. These benefits include, increase in the drug blood retention time, reduced efflux, additional toxicity and targeted delivery. Methotrexate (MTX) is clinically used for cancer treatment.

SENSITIVITY PATTERNS OF PSEUDOMONAS AERUGINOSA ISOLATES OBTAINED FROM CLINICAL SPECIMENS IN PESHAWAR.

Background: Pseudomonas aeruginosa (P. aeruginosa) is a highly virulent opportunistic pathogen and a leading cause of nosocomial infections. Affected patients are often hospitalized in an intensive care unit, and are immuno-compromised as a result of disease and treatment.

Synthesis and bioactivities of silver nanoparticles capped with 5-amino-β-resorcylic acid hydrochloride dihydrate.

Background: Conjugated and drug loaded silver nanoparticles are getting an increased attention for various biomedical applications. Nanoconjugates showed significant enhancement in biological activity in comparison to free drug molecules. In this perspective, we report the synthesis of bioactive silver capped with 5-Amino-β-resorcylic acid hydrochloride dihydrate (AR).

Enhanced biocidal activity of Au nanoparticles synthesized in one pot using 2, 4-dihydroxybenzene carbodithioic acid as a reducing and stabilizing agent.

Background: The conjugation of gold nanoparticles with biocides such as natural products, oligosaccharides, DNA, proteins has attracted great attention of scientists recently. Gold NPs covered with biologically important molecules showed significant enhancement in biological activity in comparison with the activity of the free biocides. However, these reports are not very systematic and do not allow to draw definitive conclusions.

Methyl 2,4-dihy-droxy-5-(2-methyl-propanamido)-benzoate.

In the title compound, C(12)H(15)NO(5), the dihedral angle between the benzene ring and the C atoms of the terminal isopropyl group is 83.48 (16)°. Intra-molecular N-H⋯O and O-H⋯O hydrogen bonds generate S(5) and S(6) rings, respectively.

Methyl 2,4-dihy-droxy-5-(4-nitro-benzamido)-benzoate.

In the title compound, C(15)H(12)N(2)O(7), the dihedral angle between the aromatic rings is 4.58 (13)° and the nitro group is rotated from its attached ring by 18.07 (17)°.

Cataract: trends in surgical procedures and visual outcomes; a study in a tertiary care hospital.

Objective: To determine the current procedures in practice and visual outcome following a cataract surgery.

Methods: The study was conducted from January 7 to April 7, 2011 in the Eye Unit of the Lady Reading Hospital, Peshawar, involving 181 patients. Basic demographics of the patients as well as the type of cataract surgery were noted.

Factors associated with low hepatitis B vaccination; a user and provider perspective study in Peshawar.

Hepatitis B is a major burden in Pakistan. A cross-sectional study was conducted in Peshawar, from 9th June to 19th June 2010. Cluster random sampling was done.