Synthesis, structure characterization, and corrosion properties of duplex electroless Ni-P/Ni-B and Ni-P/Ni-B-W coatings on mild steel.

This study investigates the formation of duplex electroless Ni-P/Ni-B and Ni-P/Ni-B-W alloys through electroless plating process coatings on mild steel using hypophosphite and sodium borohydride as a reducing agent, employing heat-treated. Electroless plating is affordable and suitable for coating convoluted structures. Duplex electroless on mild steel was characterized by X-ray diffraction (XRD), Energy-dispersive X-ray spectrometry (EDS), scanning electron microscopy (SEM) were used to examine the surface and cross-sectional morphologies of the duplex coating, and finally study electrochemical corrosion properties.

Biodegradable PMMA coated Zn-Mg alloy with bimodal grain structure for orthopedic applications - A promising alternative.

The study examines the impact of microstructure and polymethyl methacrylate (PMMA) grafting on the degradability of Zn-Mg alloys. The mechanical properties of a Zn alloy containing 0.68 wt% Mg and extruded at 200 °C are enhanced for degradable load-bearing applications, addressing a crucial need in the field.

Age-related morphological and ultrastructural changes in the palate and pharyngeal masticatory apparatus of grass carp (Ctenopharyngodon idella) juveniles.

Grass carp (Ctenopharyngodon idella or C. idella) is a Cyprinid fish frequently utilized for aquaculture, medical, and research purposes. In C.

Serum lipocalin-2 levels are decreased in patients with leprosy.

Background Leprosy is an infectious disease caused by Mycobacterium leprae affecting the skin, peripheral nerves and mucosae. Lipocalin-2 is a key component of the immune system's antimicrobial defence - it prevents iron uptake by binding and sequestering iron-scavenging siderophores and thus inhibits bacterial growth. Aim We evaluated serum lipocalin-2 levels in leprosy patients and its relationship to the pathogenesis and prognosis of the disease.

Effect of Mg Addition and PMMA Coating on the Biodegradation Behaviour of Extruded Zn Material.

Although zinc (Zn) is one of the elements with the greatest potential for biodegradable uses, pure Zn does not have the ideal mechanical or degrading properties for orthopaedic applications. The current research aims at studying the microstructure and corrosion behaviour of pure Zn (used as a reference material) and Zn alloyed with 1.89 wt.

Human beta-defensin 1 circulating level and gene polymorphism in non-segmental vitiligo Egyptian patients.

Background: Vitiligo is an acquired depigmented skin disorder. It has a genetic and autoimmune background. Human beta defensin-1(HBD-1) plus its gene polymorphism were linked to some autoimmune disorders.

Study of purine derivatives and their relation to renal disorders in patients with psoriasis.

Background: Psoriasis (Pso) is a chronic proliferative skin condition associated with hyperuricemia that may impair renal function.

Objectives: The current study investigates the correlation between purine derivatives (PDs) and renal function in patients with Pso.

Patients/methods: This case-control study comprises 30 psoriatic patients and 30 age- and sex-matched healthy controls.

Expression of cold-inducible RNA binding protein in psoriasis.

Psoriasis is an immune-mediated skin disease with a potential morbidity in patients. Cold-inducible RNA binding protein (CIRP) is a stress responsive protein having diverse roles in cancer and inflammation. This study aimed to evaluate the expression of CIRP, (serum and tissue), in psoriasis patients and to correlate this expression to the clinico-pathological data of the patients.

Pneumatocele formation following COVID-19 pneumonia. Is there a role for surgical intervention?

COVID-19 mainly causes a lower respiratory tract illness, meaning there has been great interest in the chest and lung radiological findings seen during the course of the disease. Most of this interest has centred around the computed tomographic findings. Most commonly, computed tomographic images report ground-glass opacities but a less common finding, and potential complication associated with COVID-19, is pneumatocele formation.

Nucleotide binding and oligomerization domain 2 in psoriasis: a clinical and immunohistochemical study.

Psoriasis is a chronic immune-mediated inflammatory disease, affecting about 2 to 3% of the population worldwide. Nucleotide-binding and oligomerization domain 2-like receptor has been implicated in the pathogenesis of different inflammatory diseases. The current work aims to investigate the expression of nucleotide-binding and oligomerization domain 2-like receptor in psoriatic skin through an immunohistochemical study.

Ultra-short versus standard-length dental implants in conjunction with osteotome-mediated sinus floor elevation: A randomized controlled clinical trial.

Background: The ability to restore missing teeth with dental implants is dictated by the available bone and by the presence of anatomical structures. The potential to insert ultrashort implants avoids additional surgical procedures and its inherent complications. The last European Association of Dental Implantologists consensus in 2016 defined ultrashort implants and standard-length dental implants as <6 and >8 mm, respectively.

Evaluation of the Langerhans cells role in vitiligo and its relationship to NB-UVB.

Background: Langerhans cells (LCs) are antigen-presenting cells that are characterized by CD1a and CD207/langerin expression. The disturbance in the communication network among keratinocytes, melanocytes, and antigen-presenting cells may be involved in vitiligo pathogenesis.

Aims: The current work aims to detect and quantify LCs in involved skin of patients affected by vitiligo before and after treatment with NB-UVB using CD1a immunohistochemistry, in addition to correlate percentage of LCs with the clinicopathological parameters.

Neutrophil Cytosolic Factor-1 Genotyping in Acne Vulgaris.

Acne vulgaris (AV) is a very common inflammatory dermatosis. It has a complex pathogenesis in which oxidative stress plays an important role. Neutrophil cytosolic factor (NCF)-1 gene encodes for NCF1 protein which shares in reactive oxygen species (ROS) production.

Two new families with enamel renal syndrome: A novel FAM20A gene mutation and review of literature.

Enamel renal syndrome (ERS) or so-called amelogenesis imperfecta type IG is a very rare disorder characterized by the triad of amelogenesis imperfecta, gingival enlargement and nephrocalcinosis. It is caused by biallelic mutations in the FAM20A gene. Herein, we report two unrelated patients with ERS.

Micro- and macroanatomical features of the uropygial gland of duck () and pigeon ().

We describe the morphological, histological and histochemical characteristics of the uropygial gland of the duck () and pigeon (). The weight and dimensions of the glands were recorded. The gland openings onto the papilla in ducks were surrounded by double tufts of downy feathers; the tufts were held together by an oily secretion.

A novel HCV electrochemical biosensor based on a polyaniline@Ni-MOF nanocomposite.

Hepatitis-C virus ribonucleic acid (HCV-RNA) recognition and quantification based on real-time polymerase chain reaction (RT-PCR) is key to infection control, management, and response to treatment due to its specificity, sensitivity, and quantification capabilities. However, the high cost, time requirements, and need for sophisticated laboratory infrastructure have limited the use of this method in rapid screening, blood banks, and point-of-care testing (POCT). In this work, a novel label-free electrochemical biosensor constructed using a polyaniline@nickel metal-organic framework (Ni-MOF) nanocomposite was developed for direct detection of unamplified HCV nucleic acid.

Urban sources of synthetic musk compounds to the environment.

The occurrence and potential sources of synthetic musk compounds (SMCs) in the urban and surrounding environment were investigated. We analyzed air, soils and surface waters from a wide array of land-use types and urban densities including air from wastewater treatment plants (WWTPs), indoor, urban, rural, and remote Arctic sites; surface waters from urban and rural tributaries; and effluents of three WWTPs. In air, the median sum concentration of six selected polycyclic musks (Σ6PCMs) (i.

Re-appraisal of Keratinocytes' Role in Vitiligo Pathogenesis.

Background: Vitiligo is a common pigmentary disorder. Studies on its pathogenesis extensively investigated melanocytes' abnormalities and few studies searched for keratinocytes' role in disease development. Liver X receptor-α (LXR-α) is a member of nuclear hormone receptors that acts as a transcription factor.

The Use of Meshed Dermal Autograft in Breast Reconstruction.

The advantages and disadvantages of acellular dermal matrix (ADM) in breast reconstruction have been well documented. ADM is commonly used in breast reconstruction, but it adds cost to the procedure and has been associated with an increased risk of seroma, flap necrosis and infectious complications. A dermal autograft may be a useful alternative to matrices, and it has a lot of advantages: more biocompatible and more likely to be retained as a free graft, low cost, well tolerated, readily available and integrated.

C-Jun expression in lichen planus, psoriasis, and cutaneous squamous cell carcinoma, an immunohistochemical study.

Unlabelled: The AP-1 transcription factor complex is a key player in regulating inflammatory processes, cell proliferation, differentiation, and cell transformation. The aim of the present study is to investigate C-Jun (one of AP-1complex) expression and its proliferative role in skin samples of lichen planus, psoriasis as common inflammatory skin diseases and squamous cell carcinoma using immunohistochemical method. The present study was carried out on skin biopsies of 15 psoriatic patients, 15 lichen planus patients, 15 SCC, and 15 normal skin biopsies.

Maxillary Sinus Augmentation Using a Titanium Mesh: A Randomized Clinical Trial.

Background: Various attempts have been implemented using different materials and techniques to augment the maxillary sinus floor for prospect dental implant positioning.

Aim: This contemplate was conducted to assess the osteogenic capability of the maxillary sinus in a two-step sinus membrane elevation using titanium mesh to keep the formed space to place dental implants in atrophic ridges.

Materials And Methods: Titanium micromesh was customized and positioned into the sinus on one side to preserve the elevated membrane in position.

Airborne Precursors Predict Maternal Serum Perfluoroalkyl Acid Concentrations.

Human exposure to persistent perfluoroalkyl acids (PFAAs), including perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorooctanesulfonate (PFOS), can occur directly from contaminated food, water, air, and dust. However, precursors to PFAAs (PreFAAs), such as dipolyfluoroalkyl phosphates (diPAPs), fluorotelomer alcohols (FTOHs), perfluorooctyl sulfonamides (FOSAs), and sulfonamidoethanols (FOSEs), which can be biotransformed to PFAAs, may also be a source of exposure. PFAAs were analyzed in 50 maternal sera samples collected in 2007-2008 from participants in Vancouver, Canada, while PFAAs and PreFAAs were measured in matching samples of residential bedroom air collected by passive sampler and in sieved vacuum dust (<150 μm).

Characterization of polyurethane foam (PUF) and sorbent impregnated PUF (SIP) disk passive air samplers for measuring organophosphate flame retardants.

This study aimed to characterize the uptake of organophosphate esters (OPEs) by polyurethane foam (PUF) and sorbent-impregnated polyurethane foam (SIP) disk passive air samplers (PAS). Atmospheric OPE concentrations were monitored with high-volume active air samplers (HV-AAS) that were co-deployed with passive air samplers. Samples were analyzed for tris(2-chloroisopropyl) phosphate (TCIPP), tri(phenyl) phosphate (TPhP), tris(2-chloroethyl) phosphate (TCEP), and tris(2,3-dichloropropyl) phosphate (TDCIPP).