Avian influenza A H5N1 hemagglutinin protein models have distinct structural patterns re-occurring across the 1959-2023 strains.

Influenza A H5N1 hemagglutinin (HA) plays a crucial role in viral pathogenesis and changes in the HA receptor binding domain (RBD) have been attributed to alterations in viral pathogenesis. Mutations often occur within the HA which in-turn results in HA structural changes that consequently contribute to protein evolution. However, the possible occurrence of mutations that results to reversion of the HA protein (going back to an ancestral protein conformation) which in-turn creates distinct HA structural patterns across the 1959-2023 H5N1 viral evolution has never been investigated.

Enhanced bone formation of rat mandibular bone defects with collagen membranes loaded on bone morphogenetic protein-9.

Background/purpose: Bone morphogenetic protein-9 (BMP-9) has demonstrated multiple advantages in promoting osteogenesis. Our previous findings have indicated that the use of an absorbable collagen membrane (ACM) as a carrier for growth factors is effective in stimulating bone regeneration. The objective of this study was to assess the synergistic impact of BMP-9 incorporated into ACM (ACM/BMP-9) on bone formation within rat mandibular bone defects.

Retrospective Analysis of the Effectiveness of Laser Therapy in the Treatment of Acne Scarring.

Objective: This retrospective analysis aimed to estimate the efficiency of laser therapy in the management of acne scarring, assessing changes in scar severity, patient satisfaction, and adverse events.

Methods: A cohort of 150 subjects with clinically diagnosed acne scarring who underwent laser therapy. Data were extracted from electronic medical records, and baseline characteristics, scar types, and management parameters were analyzed.

Comparison of Cardiovascular Changes Seen in Patients When Using Local Anesthesia with Adrenalin 1:80,000 vs Local Anesthesia with Adrenalin 1:2,00,000.

Aim: The aim of this study is to compare the efficacy with the use of 2% lignocaine with adrenalin with two different concentrations and also its effect on the cardiovascular system.

Materials And Methods: 100 patients were taken for this study. 68 were Male & 32 females.

Assessment of Complications in Dental Implant Surgery.

Background: Dental implant surgery has become a standard procedure for replacing missing teeth, boasting high success rates. However, complications can occur, affecting treatment outcomes. Understanding the nature and frequency of these complications is essential for optimizing patient care.

Analysis of Long-Term Success and Biological Complications in Zygomatic Implant-Supported Prostheses.

Introduction: Patients with significant maxillary atrophy who are not candidates for standard implants now have an option thanks to zygomatic implants. Long-term statistics on difficulties and success are, however, scarce.

Methods: A tertiary care center's patient data were retrospectively analyzed.

Pain Perception, Knowledge, Attitude, and Diet Diversity in Patients Undergoing Fixed Orthodontic Treatment: A Pilot Study.

Objective: This study aimed to determine the correlation between pain perception and knowledge, attitude, and diet diversity in patients undergoing fixed orthodontic treatment.

Methods: A total of 103 patients (15-40 yrs.; 67 females, 36 males) undergoing orthodontic treatment with a 0.

Assessing gaps in predoctoral dental curriculum for LGBTQ+ specific content.

Background: Despite growing recognition of health disparities faced by the Lesbian, Gay, Bisexual, Transgender, Queer (or Questioning) (LGBTQ+) population, significant gaps remain for inclusion of LGBTQ+ content in health professions education, particularly dental curricula. This study aims to address these gaps by investigating the integration of LGBTQ+ content in a midwestern dental school curriculum.

Methods: Curriculum mapping and focus group discussions were utilized to identify gaps and recommend integrating LGBTQ+ content into a predoctoral dental curriculum.

Ectopic Dental Canal: A Case Report Highlighting a Unique Bifid Mandibular Canal Variant.

Bifid mandibular canals are common anatomical findings with variations based on direction and location of branching, which carry significant clinical implications for endodontic and surgical dental procedures. This case report describes a previously unreported ectopic dental canal that branches off the superior border of the mandibular canal, enters the apex of a mandibular second molar, traverses through the root, anastomoses with the root canal system, and subsequently exits through the lingual aspect of the root. The anastomosis of this ectopic dental canal with the mesial lingual canal led to significant bleeding during rotary instrumentation.

Antibiotic-Loaded Dendrimer Hydrogels in Periodontal Bone Regeneration: An In Vitro Release Feasibility Study.

The prescription of a course of oral antibiotics following bone grafting procedures is a common practice in clinical periodontics to reduce surgical site infections. The goal of this study is to characterize the release profile of antibiotics via local delivery using dendrimer hydrogels (DH) and to analyze the effect of two different particulate bone allografts on the release of the antibiotics in vitro. DH were synthesized from polyamidoamine (PAMAM) dendrimer G5 and polyethylene glycol diacrylate, and cefazolin was chosen as the antibiotic.

Fluoxetine, but not paroxetine, alters the jaw-closing muscle activity during non-rapid eye movement sleep in mice.

Sleep bruxism is an involuntary, exaggerated jaw-closing activity during sleep. Selective serotonin reuptake inhibitor (SSRI) use is a risk factor for bruxism. However, the effect of various SSRIs on masseter (jaw-closing) muscle activity remains unclear.

Effects of salivary contamination on the shear bond strengths of universal adhesives to dentin.

Purpose: To evaluate the shear bond strength (SBS) of resin composite to dentin contaminated with artificial saliva (AS) containing mucin and amylase using an experimental method controlling the volume of saliva and adhesive in a defined surface area.

Methods: Flat bonding surfaces were prepared on extracted human molars (320 grit surface). Using adhesive tape, a 4.

Changes in facial appearance alter one's sensitivity not only to the self but also to the outside world.

Introduction: Changes in facial appearance due to orthognathic surgery are known to improve a patient's postoperative quality of life, however, potential changes in cognitive function are unknown. This study examined the effects of changes in facial appearance due to orthognathic surgery on the sensitivity to self and to outside objects in patients with jaw deformities.

Methods: Patients with jaw deformities ( = 22) and healthy controls ( = 30) were tested at 3 months preoperatively, at 1 month preoperatively, and at 1 month postoperatively to assess their impression of objects (positive, negative, and neutral pictures) and their evaluation of their own face and body.

Amitriptyline and duloxetine attenuate activities of superficial dorsal horn neurons in a rat reserpine-induced fibromyalgia model.

Fibromyalgia (FM) is an intractable disease with a chief complaint of chronic widespread pain. Amitriptyline (AMI) and duloxetine (DLX), which are antidepressant drugs, have been reported to ameliorate pain in patients with FM and pain-related behaviors in several rodent models of FM. However, the mechanisms of action of AMI and DLX are not yet fully understood.

Development of a Coculture Model for Assessing Competing Host Mammalian Cell and Bacterial Attachment on Zirconia versus Titanium.

Coculture models are limited by bacteria rapidly outcompeting host mammalian cells for nutrients , resulting in mammalian cell death. The goal of this study was to develop a coculture model enabling survival of mammalian cells and oral bacterial species to assess their competition for growth on dental implant materials. Two early colonizing oral bacterial species, or , were grown in coculture with primary human macrophages or human gingival fibroblasts for up to 7 days on tissue-culture treated polystyrene or polished titanium and zirconia disks.

Sexual Dimorphism in the Musculoskeletal System: Sex Hormones and Beyond.

Mounting evidence indicates that whereas some fundamental aspects of bone cell differentiation and function are similar in females and males, there is a clear contribution of sex/gender on the effects of signaling molecules on bone mass and strength and, consequently, on the effects of pharmacologic approaches to treat skeletal disorders. However, until recently, most studies were designed and performed using only 1 sex, resulting in a scarcity of published information on sexual dimorphism of the musculoskeletal system, including the mandible/masticatory muscles and the axial and appendicular bones and skeletal muscles. Further, it is now recognized that scientific rigor requires the study of both males and females.

Anterior Endocrowns as An Alternative to Core Crown restorations: A Systematic Review.

Restoring extensively damaged endodontically treated teeth presents a challenging task due to the state of biomechanical deterioration affecting long-term prognosis. Therefore, the study aims to assess and compare the biomechanical performance of endocrowns and post core-crown restorations in anterior endodontically treated teeth with severe coronal structure loss. Following PRISMA guidelines, a systematic search was conducted using PubMed, Scopus, Web of Science, and Google Scholar for articles published from January 2014 to March 2024.