Ingrida Cema - Academia.edu (original) (raw)

Papers by Ingrida Cema

Journal of Clinical Medicine

Background: Age and cumulative exposure to ultraviolet (UV) light are primary contributors to ski... more Background: Age and cumulative exposure to ultraviolet (UV) light are primary contributors to skin cancer development. Regulatory proteins within the cell cycle are essential for the homeostasis of squamous epithelium. Methods: This study assessed the expression of immunohistochemical markers p53, p63, p16, Ki67, Cyclin D, Bcl-2, and CD31 in keratinocyte intraepithelial neoplasia (actinic keratosis and squamous cell carcinoma in situ) compared to normal skin. The objective was to distinguish disease-specific changes from those attributable to ageing and sun exposure in elderly skin. Results. Analysis included 22 actinic keratoses (AK), 7 in situ squamous cell carcinomas (SCC), and 8 normal skin biopsies. The mean age was 78.1 years for the AK/SCC group and 73.8 years for controls, with no significant age difference noted between the groups. The AK/SCC group exhibited a higher occurrence of amorphous masses, higher intensity of p53, lower Bcl-2 expression in the epidermis, higher Bcl...

PubMed, 2013

Objective: This article presents long-term follow-up after use of topical photodynamic therapy (P... more Objective: This article presents long-term follow-up after use of topical photodynamic therapy (PDT) for basal cell carcinoma. PDT is treatment option for different tumors, involving use of specific agent which is activated by visible light and results in tissue destruction. Materials and methods: Overall 20 patients with 29 tumors were treated at the Latvian Oncology Center. Two illumination techniques were used: superficial for smaller lesions and multifiber contact for nodular tumors. Clinical outcome was evaluated at 1, 7, 44 months and 10 years after procedure. Results: By 10 year follow up, there were 2 tumor recurrences and in one case there was tumor residual tissue after first PDT treatment. Overall after ten years follow-up complete response was 80% of cases. Conclusion: Data in this study supports hypothesis that PDT could be used for the treatment of non-invasive (superficial and nodular) basal cell carcinoma. Results in this study correspond with similar long-term follow-up studies.

RSU Research week 2021: Knowledge for Use in Practice, Mar 24, 2021

Stomatology Edu Journal, 2021

Background The oral microbiome hosts a large number of microorganisms that play a critical role i... more Background The oral microbiome hosts a large number of microorganisms that play a critical role in oral and general health. Many factors can cause dysbiosis of the otherwise beneficial interrelationship between host and microbiome. Understanding and identifying microbial shifts and keystone pathogens that correlate with general diseases of the body holds many opportunities. Objective The aim of this literature review is to present scientific evidence about disease-associated microbial shifts in the oral cavity, the effect on oral and general health and give the reader insights into alternative, new treatment approaches. This review is also intended to inspire practitioners to consider a more holistic care approach. Data sources A search was performed using PubMed, Google Scholar and ScienceDirect. The general key terms used were: "Oral microbiome AND health", "Oral microbiome AND general disease". Disease-specific searches were performed. Articles found by cross-referencing were included. Study selection Original studies and meta-analyses were included. Articles published in 2012 or later were preferentially considered. Reviews were included if deemed valuable and labelled in the text. Articles not written in English were excluded. Data extraction The reviewer assessed each article for their relevance and methodology. Results were evaluated according to their sample size and whether or not the same result was replicated in different studies. Data synthesis Individual etiological factors correlate with several, seemingly unrelated diseases. This article directs the reader towards understanding the more unusual interconnections and utilizing multidisciplinary treatment approaches, that are aimed at reestablishing an overall balance within the oral microbiome.

Journal of Clinical Medicine, Oct 6, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Medicina-lithuania, Apr 4, 2019

Actinic keratoses (AKs) are common lesions on chronically sun damaged skin, which are morphologic... more Actinic keratoses (AKs) are common lesions on chronically sun damaged skin, which are morphologically characterized by lower third to full thickness atypia of epidermal keratinocytes. These lesions carry a risk of progression towards invasive squamous cell carcinoma (SCC); therefore, treatment of visible lesions and the field in case of field cancerization is recommended. Treatment of AK includes the destruction of atypical keratinocytes that clinically presents with various degrees of erythema, scaling, crusting, erosion, and other visible and subjective symptoms. Such inflammatory reactions may have an impact on the patient's social life and have shown to decrease compliance and adherence to therapy. Additionally, as various topical treatments have been proven to be effective in treating AK, tolerability of local site reactions (LSRs) might drive the decision for appropriate treatment in an individual scenario. Therefore, we aimed to review prevalence of severe LSRs among various topical treatments for AK. In addition, we summarized discontinuation rates due to LSRs and possible therapy-unrelated risk factors for the development of LSRs with increased severity.

Applied Sciences

Oral lichen planus (OLP) is considered a T cell-mediated chronic inflammatory process activated b... more Oral lichen planus (OLP) is considered a T cell-mediated chronic inflammatory process activated by an unknown antigen, making basal keratinocytes vulnerable to a cytotoxic cell mediated immune response. The aim of this review is to summarize information on the role and pathways of Epstein–Barr virus (EBV) and immune cells in inducing OLP as an autoimmune lesion. The pathogenesis of OLP is analyzed from immunological aspects of interactions between EBV and oral mucosa. The results of the available studies allow us to assume that EBV can act both as an exogenous and an endogenous antigen in the pathogenesis of OLP. We emphasized the role of antigen-presenting cells (APC), such as dendritic cells (Langerhans cells, LC), in detecting and capturing antigens and modulating the adaptive immune response. Although EBV shows tropism for B cells and epithelial cells, under certain conditions it can infect monocytes, LCs, NK, and T lymphocytes. It means that under some circumstances of the chro...

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

Dysregulation of the cell cycle is an important factor in a potentially malignant oral disorder. ... more Dysregulation of the cell cycle is an important factor in a potentially malignant oral disorder. There have not been many studies on the role of the cell cycle regulator p27 in oral non-homogenous leukoplakia. The aim of our study was to characterise the p27 protein in homogenous and non-homogenous oral leukoplakias (OL), in comparison with healthy mucosa and squamous cell carcinoma tissues. The current study included 25 patients with OL, 15 cases with oral squamous cell carcinoma, and 15 samples of healthy oral mucosa, both as comparison groups. Immunohistochemical p27 antigen expression was determined by a standard EnView imaging system. The expression level of p27 in nodular and verrucous leukoplakia was lower than in homogenous OL but higher than in erythroleukoplakia. There was a statistically significant difference (p < 0.05) between the expression of p27 in healthy mucosa and homogenous OL. There was a significantly lower amount of p27 positive cells in oral cancer than in...

The Permanente Journal

Melanoma is a global problem due to the rising numbers of skin melanoma cases. Current treatment ... more Melanoma is a global problem due to the rising numbers of skin melanoma cases. Current treatment guidelines for patients with stage IIA melanoma recommend only observation after surgery. In this report, the authors describe a patient with stage IIA skin melanoma treated with surgery and Rigvir virotherapy. Two years after the patient discovered a brown spot on the right cheek, surgery was indicated because the mass had started to ulcerate. Rigvir virotherapy was applied both before and after surgery. Observations made more than 7 years after surgery indicated no signs of disease progression. This case report illustrates an early treatment approach. Neoadjuvant treatment for early-stage melanoma is gaining more interest in both scientific and medical communities; therefore, the authors believe it is relevant to share their observations.

15th Biennial Congress European Association of Oral Medicine, 2021

13th Congress of BADV (Baltic Association of Dermatovenerologists), 2016