Publications by authors named "Leonardis M"

Adeno-associated viruses 2 (AAV2) are minute viruses renowned for their capacity to infect human cells and akin organisms. They have recently emerged as prominent candidates in the field of gene therapy, primarily attributed to their inherent non-pathogenic nature in humans and the safety associated with their manipulation. The efficacy of AAV2 as gene therapy vectors hinges on their ability to infiltrate host cells, a phenomenon reliant on their competence to construct a capsid capable of breaching the nucleus of the target cell.

View Article and Find Full Text PDF

The purpose of this study was to compare the envelope flap and triangular flap for impacted lower third molar (M3) extraction and their effects on the periodontal health of adjacent second molars (M2). A population of 60 patients undergoing M3 extraction with the envelope flap (Group A) or triangular flap (Group B) was analyzed, comparing probing pocket depth (PPD), clinical attachment level (CAL), and gingival recession (REC) recorded at six sites (disto-lingual, mid-lingual, mesio-lingual, disto-vestibular, mid-vestibular, and mesio-vestibular) before (T) and 6 months after extraction (T). There was a statistically significant mean difference in PPD and CAL at two sites, disto-vestibular (dv) and disto-lingual (dl), between values recorded before and 6 months after surgery for either Group A or Group B.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates the prevalence of temporomandibular disorder (TMD) symptoms and the general knowledge about TMD among a specific population in Rio de Janeiro.
  • - An online survey revealed that only 19% of respondents reported no TMD-related symptoms, indicating that many people experience these issues.
  • - The findings suggest a correlation between the presence of TMD symptoms and the level of knowledge and awareness about the disorder, implying that TMD might be more common than reported.
View Article and Find Full Text PDF

Aim: Rectal GIST is a rare tumor of the gastrointestinal tract. The few literature cases didn't show significant evidence about diagnostic and therapeutic management. We present a rare case of rectal GIST treated with laparoscopic anterior rectal resection (RARLs) preceded by neoadjuvant therapy with Imatinib Mesylate (IM).

View Article and Find Full Text PDF

The graft nephrectomy is burdened by immunological and surgical complications. The main surgical complications of graft nephrectomy are hemorrhage, infections, vascular injury and death. The mortality is high, with percentages varying between 1.

View Article and Find Full Text PDF

Aim: Primary small bowel melanoma is a very rare clinical entity with a paucity of publications in literature. Most cases of gastrointestinal melanomas are metastatic lesions arising generally from primary lesion of the skin, eyes, or anus. We present a case of a small bowel intussusception with primary malignant melanoma as lead point and a gluteal melanoma metastasis after four years free from disease.

View Article and Find Full Text PDF

Poly (ADP-ribose) polymerase 1 (PARP1) is crucial in both maintenance of genome integrity and cell death. PARP1 activation has been very recently linked to Parkinson's disease (PD) and its role in inducing the pathologic accumulation of α-Synuclein demonstrated in a PD mouse model. The objective of this study was to investigate the presence and localization of PARP1 in PD brain.

View Article and Find Full Text PDF

HDAC6 is a unique histone deacetylase that targets cytoplasmic non-histone proteins and has a specific ubiquitin-binding activity. Both of these activities are required for HDAC6-mediated formation of aggresomes, which contain misfolded proteins that will ultimately be degraded via autophagy. HDAC6 deacetylase activity is increased following phosphorylation on serine 22 (phospho-HDAC6).

View Article and Find Full Text PDF

Unlabelled: Background The extraction of the mandibular third molar is one of the most frequent intervention in oral surgery. A common indication for wisdom tooth extraction is represented by pericoronitis, which can determine discomfort and pain in patients. The present study aimed to evaluate the impact of patients' quality of life by comparing a surgical approach with a periodontal approach.

View Article and Find Full Text PDF

Peri-implantitis is an inflammatory disease with an increasing diffusion rate which can affect the long-term survival of a prosthetic rehabilitation. The present study focused on the decontaminating efficacy of chlorhexidine and air polishing system with sodium bicarbonate powder against , a microorganism which seems to have a superinfecting opportunistic role in the pathology. The aim of the authors was to investigate and compare the effectiveness of these treatments, commonly used in clinical practice.

View Article and Find Full Text PDF

A variety of cellular processes, including vesicle clustering in the presynaptic compartment, are impaired in Parkinson's disease and have been closely associated with α-synuclein oligomerization. Emerging evidence proves the existence of α-synuclein-related pathology in the peripheral nervous system, even though the presence of α-synuclein oligomers in situ in living patients remains poorly investigated. In this case-control study, we show previously undetected α-synuclein oligomers within synaptic terminals of autonomic fibres in skin biopsies by means of the proximity ligation assay and propose a procedure for their quantification (proximity ligation assay score).

View Article and Find Full Text PDF

Pulmonary hamartoma (PH) is the most common benign tumor of the lung, typically presenting as a peripheral solitary nodule with round shape and smooth margins. The main computed tomography (CT) features that allow a confident diagnosis of PH are intranodular fat and popcorn-like calcifications. However, the presence of these features within PHs is variable.

View Article and Find Full Text PDF

In this study, we report a novel assay for the combined on site detection of aflatoxin B1 (AFB1) and ochratoxin A (OTA), through a colorimetric biosensing system for AFB1 and a fluorimetric detection for OTA, exploiting the capability of the portable fibre optic spectrometer to perform both analyses. AFB1 was detected using the acetylcholinesterase (AChE) enzyme that is inhibited by this toxin, and the degree of inhibition was quantified by the Ellman's spectrophotometric method, obtaining a detection limit of 10 µg L(-1). OTA quantification was performed by monitoring its intrinsic fluorescence in methanol, reaching a detection limit of 0.

View Article and Find Full Text PDF

Purpose: In recent years there has been a growing interest in nonsurgical procedures for facial rejuvenation. Hyaluronic acid is currently the most widely used dermal filler for the treatment of facial wrinkles. However, new products with interesting features are being introduced into the market.

View Article and Find Full Text PDF

Purpose: The continual search for new products for soft-tissue augmentation has in recent years led to the introduction of long lasting alternatives to hyaluronic acids and collagen that are composed of other polymers able to improve clinical persistence over time. This is the first report in which sodium carboxymethyl cellulose (CMC) has been chemically treated by the cross-linking process and thus used as a hydrogel for soft-tissue augmentation through injection with thin needles. The study evaluates, from a clinical point of view, the behavior of cross-linked carboxymethyl cellulose hydrogel used in the aesthetic field and its side effects so as to check the safety and performance of the polymer following intradermal injections.

View Article and Find Full Text PDF

Aim: The aim of this study was to assess the usefulness of a lipid formulation containing a physical mixture of medium (MCT) and long chain triglycerides (LCT) compared with a long chain triglycerides emulsion in patients affected by chronic obstructive pulmonary disease with acute respiratory failure.

Methods: Twenty-four patients requiring mechanical ventilation were randomly selected in 2 groups and received total parenteral nutrition. Twelve patients received a MCT/LCT emulsion (50:50), the others used a 100% LCT emulsion.

View Article and Find Full Text PDF

The World Health Organization (WHO) guidelines for the treatment of cancer pain recommend nonopioid analgesics as first-line therapy, so-called "weak" analgesics combined with nonopioid analgesics as second-line therapy, and so-called "strong" opioids (with nonopioid analgesics) only as third-line therapy. However, these guidelines can be questioned with regard to the extent of efficacy as well as the rationale for not using strong opioids as first-line treatment, especially in terminal cancer patients. The purpose of this randomized study was to prospectively compare the efficacy and tolerability of strong opioids as first-line agents with the recommendations of the WHO in terminal cancer patients.

View Article and Find Full Text PDF

We report a case of patient with a suspected goiter which proved ganglioneuroma adjacent to the thyroid gland. Preoperative studies were not diagnostic. Ganglioneuroma should be kept in mind during the differential diagnosis of goiter.

View Article and Find Full Text PDF

This article reports research that tried to make the father's commitment to the child's development more apparent. Based in extensive research, they differenciated two groups of 17 babies: children brought up "only and primarily by the mother"; and children brought up "as much by the father as the mother" -- a balanced sample group regarding age and sex. The dependent variable was revealed by a check of observable relational and motor skills inside a day-care center: each child was watched for 10 minutes at each of ten sessions of recreational activity, for a total of 100 minutes.

View Article and Find Full Text PDF