Loneliness as Cause.

While loneliness has been linked to various mental and physical health problems, the sense in which loneliness is a cause of these conditions has so far attracted little philosophical attention. This paper aims to fill this gap by analyzing research on health effects of loneliness and therapeutic interventions through current approaches to causality. To deal with the problem of causality between psychological, social, and biological variables, the paper endorses a biopsychosocial model of health and disease.

The Effects of the COVID-19 Pandemic on Mental Health: A Web-Based Study Among Romanian Adults.

Background In Romania, as in other parts of the world, the family doctor is the first to make contact with a healthy patient and is also the first to notice even the smallest pathological changes. In the context of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, the patient's communication with the family doctor became even closer and some behavioral changes could be easily noticed. Objective To assess the symptoms of anxiety and depression in the Romanian population using social media platforms in the context of the COVID-19 pandemic.

Loneliness and negative effects on mental health as trade-offs of the policy response to COVID-19.

This note introduces a framework incorporating multiple sources of evidence into the response to COVID-19 to overcome the neglect of social and psychological causes of illness. By using the example of psychological research on loneliness and its effects on physical and mental health with particular focus on aging and disability, I seek to open further inquiry into how relevant psychological and social aspects of health can be addressed at policy level.

Mental health, normativity, and local knowledge in global perspective.

Approaching mental health on a global scale with particular reference to low- and mid-income countries raises issues concerning the disregard of the local context and values and the imposition of values characteristic of the Global North. Seeking a philosophical viewpoint to surmount these problems, the present paper argues for a value-laden framework for psychiatry with the specific incorporation of value pluralism, particularly in relation to the Global South context, while also emphasizing personal values such as the choice of treatment. In sketching out this framework, the paper aims to overcome the clash between universalism and relativism about psychiatric categories by focusing on how overlaps between cultures can contribute to ontology-building.

Bacterial fermentation and respiration processes are uncoupled in anoxic permeable sediments.

Permeable (sandy) sediments cover half of the continental margin and are major regulators of oceanic carbon cycling. The microbial communities within these highly dynamic sediments frequently shift between oxic and anoxic states, and hence are less stratified than those in cohesive (muddy) sediments. A major question is, therefore, how these communities maintain metabolism during oxic-anoxic transitions.

Revitalising the rudimentary replacement dentition in the mouse.

Most mammals have two sets of teeth (diphyodont) - a deciduous dentition replaced by a permanent dentition; however, the mouse possesses only one tooth generation (monophyodont). In diphyodonts, the replacement tooth forms on the lingual side of the first tooth from the successional dental lamina. This lamina expresses the stem/progenitor marker Sox2 and has activated Wnt/β-catenin signalling at its tip.

Complex patterns of tooth replacement revealed in the fruit bat (Eidolon helvum).

How teeth are replaced during normal growth and development has long been an important question for comparative and developmental anatomy. Non-standard model animals have become increasingly popular in this field due to the fact that the canonical model laboratory mammal, the mouse, develops only one generation of teeth (monophyodonty), whereas the majority of mammals possess two generations of teeth (diphyodonty). Here we used the straw-coloured fruit bat (Eidolon helvum), an Old World megabat, which has two generations of teeth, in order to observe the development and replacement of tooth germs from initiation up to mineralization stages.

Versatile SPR aptasensor for detection of lysozyme dimer in oligomeric and aggregated mixtures.

A Surface Plasmon Resonance (SPR) sensor for the quantitation of lysozyme dimer in monomer-dimer mixtures, reaching a detection limit of 1.4nM dimer, has been developed. The sensor is based on an aptamer which, although developed for the monomeric form, binds also the dimeric form but with a strikingly different kinetics.

Magnetically-Responsive Hydrogels for Modulation of Chondrogenic Commitment of Human Adipose-Derived Stem Cells.

Magnetic nanoparticles (MNPs) are attractive tools to overcome limitations of current regenerative medicine strategies, demonstrating potential to integrate therapeutic and diagnostic functionalities in highly controlled systems. In traditional tissue engineering (TE) approaches, the MNPs association with stem cells in a three-dimensional (3D) template offers the possibility to achieve a mechano-magnetic responsive system, enabling remote control actuation. Herein, we propose to study the role of MNPs integrated in κ-carrageenan (κC) hydrogels in the cellular response of human adipose-derived stem cells (hASCs) aiming at cartilage TE applications.

Is Right Ventricular Remodeling in Pulmonary Hypertension Dependent on Etiology? An Echocardiographic Study.

Aims: Survival in patients (pts) with pulmonary hypertension (PH) differs between subgroups at similar levels of pressure overload. We set to analyze right ventricular (RV) morphology and function in different types of PH using conventional and deformation imaging echocardiography.

Material And Methods: Thirty-four pts with PH: 12 pts with idiopathic pulmonary arterial hypertension (IPAH, 42.

Epithelial topography for repetitive tooth formation.

During the formation of repetitive ectodermally derived organs such as mammary glands, lateral line and teeth, the tissue primordium iteratively initiates new structures. In the case of successional molar development, new teeth appear sequentially in the posterior region of the jaw from Sox2(+) cells in association with the posterior aspect of a pre-existing tooth. The sequence of molar development is well known, however, the epithelial topography involved in the formation of a new tooth is unclear.

Natural assembly of platelet lysate-loaded nanocarriers into enriched 3D hydrogels for cartilage regeneration.

The role of Platelet Lysates (PLs) as a source of growth factors (GFs) and as main element of three-dimensional (3D) hydrogels has been previously described. However, the resulting hydrogels usually suffer from high degree of contraction, limiting their usefulness. This work describes the development of a stable biomimetic 3D hydrogel structure based on PLs, through the spontaneous assembling of a high concentration of chitosan-chondroitin sulfate nanoparticles (CH/CS NPs) with PLs loaded by adsorption.

Epidemiological study of metabolic syndrome and risk of diabetes mellitus in a rural family medicine practice in Bacau County.

Aim: This descriptive epidemiological study included 615 subjects investigated by their family doctor in the interval October 2011- August 2012.

Material And Methods: Patients were selected according to 2012 IDF diagnostic criteria resulting 304 patients.

Results: There was a Gaussian distribution of waist circumference (WC) with a maximum in age-group 70-80 years (46.

Molecular variants of human papilloma virus 16 E2, E4, E5, E6 and E7 genes associated with cervical neoplasia in Romanian patients.

The aim of this study was to identify and associate the sequence variations of human Papillomavirus 16 (HPV16) genes from women who live in two different areas of Romania and associate them with malignant progression. One hundred twenty-four HPV16-positive cervical isolates were collected, and the E2, E4, E5, E6 and E7 viral genes were sequenced. Two new missense mutations in the E6 gene (C279G and A305C) were found (together or alone, in association with other mutations) in 44 of 124 cases.

Fabrication of endothelial cell-laden carrageenan microfibers for microvascularized bone tissue engineering applications.

Recent achievements in the area of tissue engineering (TE) have enabled the development of three-dimensional (3D) cell-laden hydrogels as in vitro platforms that closely mimic the 3D scenario found in native tissues. These platforms are extensively used to evaluate cellular behavior, cell-cell interactions, and tissue-like formation in highly defined settings. In this study, we propose a scalable and flexible 3D system based on microsized hydrogel fibers that might be used as building blocks for the establishment of 3D hydrogel constructs for vascularized bone TE applications.

Seaweed polysaccharide-based hydrogels used for the regeneration of articular cartilage.

This manuscript provides an overview of the in vitro and in vivo studies reported in the literature focusing on seaweed polysaccharides based hydrogels that have been proposed for applications in regenerative medicine, particularly, in the field of cartilage tissue engineering. For a better understanding of the main requisites for these specific applications, the main aspects of the native cartilage structure, as well as recognized diseases that affect this tissue are briefly described. Current available treatments are also presented to emphasize the need for alternative techniques.

Stress: from symptom to disease.

Aim: To evaluate the presence and role of stress in causing diseases.

Materials And Methods: We conducted a 6-month study in patients who presented for the first time with a series of symptom and tried to look for an organic cause of those symptoms. We wanted to see the impact of stress in everyday life and its role in causing various diseases.

Evaluation of the in vitro and in vivo biocompatibility of carrageenan-based hydrogels.

Carrageenans are highly sulphated galactans, well-known for their thermogelation properties which have been extensively exploited in food and cosmetics industry but poorly explored in the biomedicine field. In this study, we have assessed the in vitro and in vivo biocompatibility of κ-carrageenan hydrogels that have been explored for regenerative medicine and tissue engineering applications. The in vitro cytotoxicity of the materials using a L929 mouse fibroblast cell line was evaluated, and the effect of κ-carrageenan hydrogels on the activation of human polymorphonuclear neutrophils cells (hPMNs) was also evaluated by the quantification of reactive oxygen species by chemiluminescence.

Silk hydrogels from non-mulberry and mulberry silkworm cocoons processed with ionic liquids.

Matrices based on silk fibroin from the non-mulberry silkworm Antheraea mylitta and the mulberry silkworm Bombyx mori have demonstrated good applicability in regenerative medicine. However, the cocoons of A. mylitta are underutilized in part due to their lack of solubility in traditional organic solvents.

Chondrogenic phenotype of different cells encapsulated in κ-carrageenan hydrogels for cartilage regeneration strategies.

Engineering articular cartilage substitutes using hydrogels with encapsulated cells is an approach that has received increasing attention in recent years. Hydrogels based on κ-carrageenan (κC), a thermoreversible natural-origin polymer, have been recently proposed as new cell/growth factor delivery vehicles for regenerative medicine. In this work, we report the potential of such hydrogels encapsulating either human-adipose-derived stem cells (hASCs), human nasal chondrocytes (hNCs), or a chondrocytic cell line (ATDC5) for cartilage regeneration strategies.

Marine algae sulfated polysaccharides for tissue engineering and drug delivery approaches.

Biomedical field is constantly requesting for new biomaterials, with innovative properties. Natural polymers appear as materials of election for this goal due to their biocompatibility and biodegradability. In particular, materials found in marine environment are of great interest since the chemical and biological diversity found in this environment is almost uncountable and continuously growing with the research in deeper waters.