36 research outputs found
Pericoronitis : a clinical and epidemiological study in greek military recruits
This paper presents a statistical analysis of epidemiological, clinical and radiographical characteristics of third molar-related pericoronitis. 650 conscripts of the First Training Division of Conscript Soldiers of 2005 in Greece were recruited for the study. Each conscript was given a questionnaire and underwent a clinical test and a radiographic examination. The tested variables included the conscripts? personal information, oral hygiene parameters along with the radiographic angulation of the third molar, the level of impaction and their classification in relation to the edge of the mandible. The prevalence of pericoronitis was found to be 4.92%. The group of patients between 20 and 25 years old dominated in a percentage of 72.41%. The use of mouthwash along with the adequate frequency of teeth-brushing appeared to be related to a statistically significant decrease of the disease. Vertical impacted molars are more likely to present pericoronitis at a rate of 61.11%; plane A and the impacted teeth that are positioned to the front edge of the mandible according to class II, have a higher rate of prevalence. Finally, a brief literature review in comparison to our study is also presented
Enhancing Social Skills Development in Children with Autism Spectrum Disorder: An Evaluation of the power of Camp Inclusion Program
This study investigates the effectiveness of the Power of Camp Inclusion program in enhancing social skills among children with autism spectrum disorder (ASD) in an integrated educational environment of a camp. Caregivers, who received pedagogical training on disability issues, evaluated the program. The study involved 22 individuals with ASD, aged 7-25 years (mean age: 14.82), and 22 companions, aged 20-56 years (mean age: 25.27). Caregivers received in vivo training on social skills to support their role in the program. The Autism Social Skills Profile (ASSP) was used to assess social skills, including Social Reciprocity, Social Participation, and Harmful Social Behaviors, as well as the overall index of social skills. In addition to ASSP, all participants underwent semi-structured interviews. Statistical analysis examined demographic data, internal consistency of variables, their correlation, and t-test analyses of a sample and paired observations. The results indicated that the implementation of the Power of Camp Inclusion program had positive effects on the development of social reciprocity, social participation, overall index of social skills, and reduction of harmful social behaviors among children with ASD. The findings of this study highlight the importance of educational programs that support the development of social skills for children with ASD and emphasize the need for such programs to be integrated into modern educational policies
Skin diseases in Greek and immigrant children in Athens
Objectives This study aimed to characterize the spectrum of skin
diseases affecting children in Greece.
Methods We retrospectively studied data for 4071 children, aged 0-12
years, who were examined and diagnosed with dermatoses at the outpatient
clinic of a university dermatological hospital between December 2005 and
August 2007. To evaluate changes in disease patterns, these data were
compared with data for a cohort of 12,700 children diagnosed with skin
diseases at the same clinic two to three decades earlier (in 1977, 1980,
and 1983).
Results The most frequent disease was dermatitis/eczema (34.7%), with
atopic dermatitis found in 20.7% of children, contact dermatitis in
6.9%, pityriasis alba in 2.1%, and seborrheic dermatitis in 1.8%.
Infections (19.3%), nevi (5.6%), scabies (4.8%), and insect bites
(4.3%) followed. More viral (12%) than bacterial (3.7%) and fungal
(3.6%) infections were noted. Warts constituted 53.2% of viral
infections. Immigrants had an increased risk for bacterial infections
and scabies.
Conclusions Children diagnosed with skin diseases 24-30 years earlier
were younger; exhibited lower prevalences of dermatitis/eczema (P =
0.01), viral infections (P < 0.001) and nevi (P < 0.001); higher
prevalences of bacterial and fungal infections (P < 0.001) and insect
bites (P < 0.01); and similar rates of scabies (P = 0.17). This study
documents the high prevalence of atopic dermatitis in the region, the
increasing incidence of viral infections and nevi, and the continuing
problem of scabies, especially in immigrants
KIT-negative gastrointestinal stromal tumors with a long term follow-up: A new subgroup does exist
AIM: To investigate the incidence of KIT immunohostochemical staining in
(GI) stromal tumors (GISTs), and to analyze the clinical manifestations
of the tumors and prognostic indicators.
METHODS: We retrospectively analyzed 50 cases of previously diagnosed
GISTs. Tissue samples were assessed with KIT (CD117 antigen), CD34, SMA,
desmin, S-100, NSE, PCNA, Ki-67, and BCL-2 for immunohistochemical study
and pathological characteristics were analyzed for prognostic factors.
RESULTS: Fifteen tumors (30%) were negative in KIT staining. A
significant association was observed between gender (male patients:
14/15) and KIT-negative staining (P = 0.003). The patients’s mean age
was 56.6 years. Tumors developed in stomach (n = 8), small intestine (n
= 5), large intestine (n = 1) and oesophagus (n = 1). The mean tumor
size was 5.72 cm. The mitotic count ranged from 0-29/50 HPF (mean: 3.4)
and 73% of tumors showed no necrosis. The majority of the tumors (67%)
had dual or epithelioid differentiation. Tumors were classified as very
low or low risk (n = 7), intermediate risk (n = 5), and high risk (n =
3) groups. Twelve (80%) patients were alive without evidence of
residual tumor for an average period of 40.25 mo (12-82 mo); three
patients developed metastatic disease to the liver and eventually died
within 2-12 mo (median survival: 8.6 mo).
CONCLUSION: A small subgroup of GISTs fulfils the clinical and
morphological criteria of these tumors, and lacks KIT expression. These
tumors predominantly developed in the stomach, being dual or epithelioid
in morphology, which are classified as low risk tumors and presented a
better survival status than KIT-positive tumors. The ability to diagnose
GISTs still depends on immunohistochemical staining but the research
should extend in gene mutations. (c) 2007 The WJG Press. All rights
reserved
Quercetin Is More Effective than Cromolyn in Blocking Human Mast Cell Cytokine Release and Inhibits Contact Dermatitis and Photosensitivity in Humans
Mast cells are immune cells critical in the pathogenesis of allergic,
but also inflammatory and autoimmune diseases through release of many
pro-inflammatory cytokines such as IL-8 and TNF. Contact dermatitis and
photosensitivity are skin conditions that involve non-immune triggers
such as substance P (SP), and do not respond to conventional treatment.
Inhibition of mast cell cytokine release could be effective therapy for
such diseases. Unfortunately, disodium cromoglycate (cromolyn), the only
compound marketed as a mast cell “stabilizer”, is not particularly
effective in blocking human mast cells. Instead, flavonoids are potent
anti-oxidant and anti-inflammatory compounds with mast cell inhibitory
actions. Here, we first compared the flavonoid quercetin (Que) and
cromolyn on cultured human mast cells. Que and cromolyn (100 mu M) can
effectively inhibit secretion of histamine and PGD(2). Que and cromolyn
also inhibit histamine, leukotrienes and PGD(2) from primary human cord
blood-derived cultured mast cells (hCBMCs) stimulated by IgE/Anti-IgE.
However, Que is more effective than cromolyn in inhibiting IL-8 and TNF
release from LAD2 mast cells stimulated by SP. Moreover, Que reduces
IL-6 release from hCBMCs in a dose-dependent manner. Que inhibits
cytosolic calcium level increase and NF-kappa B activation.
Interestingly, Que is effective prophylactically, while cromolyn must be
added together with the trigger or it rapidly loses its effect. In two
pilot, open-label, clinical trials, Que significantly decreased contact
dermatitis and photosensitivity, skin conditions that do not respond to
conventional treatment. In summary, Que is a promising candidate as an
effective mast cell inhibitor for allergic and inflammatory diseases,
especially in formulations that permit more sufficient oral absorption
A Modified Mediterranean Diet Improves Fasting and Postprandial Glucoregulation in Adults with Overweight and Obesity: A Pilot Study
The ideal lifestyle intervention to battle both obesity and diabetes is currently unknown. The aim of this pilot uncontrolled intervention trial was to assess the effect of a modified Mediterranean diet (MedDiet) on weight loss and glucoregulation among overweight/obese adults. Eleven men and women with overweight/obesity, aged 37 ± 12 years, participated in a free-living intervention until 10% weight loss was achieved. Participants followed an individualized MedDiet high in monounsaturated fat and protein with decreased carbohydrate and saturated fat contents. Physical activity and dietary intake were monitored with pedometers and food records, respectively. Upon weight loss achievement, anthropometric measurements, blood metabolic profiles and individual responses to oral glucose and mixed-meal tests were evaluated pre- and post-intervention. The results showed significant ameliorations in body fat, waist circumference and leptin levels (p < 0.01), with concomitant increases in adiponectin–leptin ratios (p < 0.001). Glucoregulation was significantly improved according to glucose and insulin responses, homeostatic model assessment of insulin resistance indices and postprandial insulin sensitivity indices (p < 0.05). In conclusion, the modified Mediterranean diet may induce significant improvements in body composition, adipocytokine profile and glucose metabolism in overweight/obese individuals. Notably, ameliorated glycemia and increased insulin sensitivity may be retained even at postprandial level, irrespective of the meal consumed
Stress management and dietary counseling in hypertensive patients: a pilot study of additional effect
Background: In Western societies, cardiovascular (CV) disease is the
primary cause of mortality, and high blood pressure (BP) is the main
reversible factor leading to CV disease. Dietary habits and psychosocial
stress contribute to the establishment of hypertension, while its role
in the control of high BP is currently examined. In this study, we
examined the effect and feasibility of a combined intervention of
dietary education and stress management on the control of hypertension.
Methodology: A randomized, controlled pilot study was designed to
evaluate the effect of combined education on stress management
techniques and dietary habits (Mediterranean diet principle) on office
BP after eight weeks. Results: Of the 45 randomized subjects, 36 were
included in the final analysis (control group = 20 (age: 67 +/- 12
years, 31.8%, males) and intervention group516 (age: 62 +/- 12 years,
47%, males)). CV disease risk factors (except smoking), BP, dietary
habits, perceived stress and physical activity (all assessed with
validated questionnaires) were similar between the two groups at
baseline. After eight weeks, office BP (systolic and diastolic) and
perceived stress were significantly reduced, whereas the adherence in
Mediterranean diet principle was significantly increased, but only in
the intervention group. Conclusions: A combined intervention of stress
management techniques and Mediterranean diet education seems to be
beneficial for BP reduction. Such interventions could possibly serve as
a complementary treatment along with drug therapy or in the early
treatment of high normal BP. A call to action for designing
epidemiological studies and evaluating the efficacy of such
non-pharmacological treatment strategies is therefore warranted
Mitochondrial dysfunction in affected skin and increased mitochondrial DNA in serum from patients with psoriasis
Psoriasis is characterized by keratinocyte proliferation and chronic
inflammation, but the pathogenesis is still unclear. Dysregulated
mitochondria (mt) could lead to reduced apoptosis and extracellular
secretion of mtDNA, acting as “innate pathogen” triggering
inflammation. Serum was obtained from healthy volunteers and psoriatic
patients. Mitochondrial DNA was extracted from the serum and amplified
with quantitative PCR (qPCR). Punch biopsies were obtained from lesional
and non-lesional psoriatic skin (10 cm apart) and from healthy
volunteers, were placed in RNA later and were stored at -80 degrees C
until RNA was extracted and cDNA was synthesized; gene expression of
uncoupling protein 2 (UCP2), Dynamin-related protein 1 (Drp1) and
calcineurin, involved in the regulation of mitochondria function, was
detected with qPCR. Mitochondrial DNA was significantly increased (7s, P
= 0.0496 and Cytochrome B, CytB, P = 0.0403) in the serum of psoriatic
patients (n = 63) as compared to controls (n = 27). Gene expression was
significantly reduced for UCP2 (P = 0.0218), Drp1 (P = 0.0001) and
calcineurin (P = 0.0001) in lesional psoriatic skin, as compared to
non-lesional or control skin. Increased serum extracellular mtDNA in
psoriatic patients and decreased expression of mitochondrial regulatory
proteins in psoriatic skin suggest increased inflammation and reduced
keratinocyte apoptosis, respectively. Inhibitors of mtDNA secretion
and/or UCP2 stimulants may be potential treatment options