Introduction: Matrix metalloproteinases (MMPs) are key enzymes involved in degradation of extracellular colagen matrix during periodontal disease progression. The aim of our work was to study the levels of MMP-1, MMP-2, MMP-7, MMP-9 and MMP-10 in saliva of patients with chronic periodontitis. Materials and methods: The study included 22 patients with chronic periodontal disease and 15 controls. We collect unstimulated whole saliva from all volunteers included in the study. Salivary levels of mentioned MMPs were analyzed using magnetic bead-based multiplex assays and Luminex technology. Results: MMP-1, MMP-7, MMP-9 and MMP-10 present statistically increased salivary levels at patients with periodontal disease versus the control group (p<0.05). Salivary level of MMP-2 at patients with chronic periodontitis was increased but statistically insignificant compared with healthy subjects (p=0.1). Conclusions. The increased level of these enzymes in patients diagnosed with periodontal disease reflects their implication in periodontal tissue degradation. Saliva is an excellent fluid useful in monitoring the severity of this oral disease that affects about half of the adult population around the world.
Background: Acute cholecystitis is the most frequent complication of cholelithiasis and counts for one third of surgical emergencies. Aim: The study evaluates the outcomes and limits of laparoscopic cholecystectomy in acute cholecystitis. Materials and methods: A retrospective study was performed for 2 years, between 01.01.2016-31.12.2017 in the 2nd Surgery Department of the Sibiu County Emergency Clinical Hospital, on hospitalized patients with acute cholecystitis, who underwent surgery. The severity of acute cholecystitis was analyzed using the Tokyo Guidelines (TG13 / TG18) severity risk scale. The preoperatory evaluation of the anesthetic-surgical risk was based on American Society of Anesthesiologists Physical Status Classification (ASA PS) and Charlson Comorbidity Index (CCI) (9). Statistical analysis was performed to analyze the outcomes and limits of laparoscopic cholecystectomy and the risk factors for conversion and open surgery. Results: Out of the 262 patients in the study group, most of the patients (61%) were diagnosed with moderate acute cholecystitis, while 67 patients (26%) were diagnosed with mild form and 34 (13%) with severe acute cholecystitis. Laparoscopic cholecystectomy was performed in 96.1% of cases with no conversion to open surgery. The postoperative complications were ligature slippage (1.9%), main bile duct injury (1.9%), postoperative hemorrhage (3.9%) and surgical site infections (2.4%), most of them being managed conservatory. Conclusions: Laparoscopic cholecystectomy can be performed nowadays with minimal morbidity in acute cholecystitis. Knowledge of various factors predicting possible conversion helps in adequate pre-operative selection and counseling for open procedure with further reduction in the overall morbidity of laparoscopic cholecystectomy.
Background and Objectives: Sulfur mustard is a functional alkylating chemical warfare agent that gives rise to appalling lung injury. In people with pulmonary diseases, including asthma, the complication of respirational dynamics is reduced. However, the complexity of breathing patterns in lung injury caused by chemical agents is not clear. In the current study, the outcome of 2-chloroethyl ethyl sulfide (CEES), and mustard analogue, upon breathing pattern of rats without or with treatment were reviewed. Methods: The interbeat interval (IBI) and respiratory volume (RV) data have been acquired from spontaneous respiration rats with lung injury by CEES using a whole-body plethysmograph. We calculated mean and coefficient of variation, alpha exponent derived from detrended fluctuation analysis (DFA), and sample entropy of IBI and RV. Finding: Entropy examination of respiratory variation displayed reduced inconsistency (less complication) in the breathing pattern of this rat model of lung injury. The mustard analogue also led to increased lung inflammation in damaged rats. However, treatment by NAC and dexamethasone had a compelling impact on the complication of the breathing rhythm and lung inflammation of rats with lung injury. Conclusion: Our findings show that inflammation could be the possible origin of respiratory dynamics shifting apart from the normal variation in CEES-induced lung injury.
Background: Cardiovascular disease can be triggered and accelerated by hypertension and the underlying changes in the structure and function of arteries. The purpose of this review is to explore some vascular changes that occur in hypertension as a consequence of the imbalance between cell proliferation and cell death, processes that play an important role in stabilizing the thickness of the arterial wall during vascular remodeling. Methods: The authors conducted research through PubMed and Google Scholar databases using the following search formula: (hypertensive*) AND ((vascular modifications)) OR (vascular changes)) AND (cell death). Results: From 40 articles, only 17 publications were included in this study, taking into account four processes that can be preceded or followed by inflammation and depend on the interaction between local growth factors, vasoactive substances, and hemodynamic stimuli: Cell proliferation and growth; Cell migration; Cell death; Degradation or reorganization of extracellular matrix. Conclusions: To summarize, maladaptive vascular changes in hypertension can represent a major argument for prompt and maximal therapeutic intervention in patients with high cardiovascular risk. Moreover, they can represent an important step in discovering new markers of cardiovascular risk and in the development of new targeted therapies for different pathways of cellular signaling through which the reversibility of abnormal vascular changes could be obtained.
Psoriasis is a chronic inflammatory skin condition with genetic determinism characterized by the presence of well- defined, erythematous plaques, covered by white, pearly, stratified scales, located on the extension areas, the skin of the scalp, intertriginous regions. The origin of psoriasis is multifactorial, involving hereditary and environmental pathogenic mechanisms. It is triggered by various risk factors involving a variety of processes, such as inflammation, antigen presentation, cell signaling, and transcriptional regulation.
The term "panniculitis" refers to a heterogeneous group of conditions that involve inflammation of the subcutaneous cellular tissue. Although there is no universally accepted classification of panniculitis, to facilitate the diagnosis, they were divided into two large classes, based on the histopathological criteria: predominantly lobular and predominantly septal panniculitis. Depending on the presence or absence of vascular damage, each of the two classes mentioned above is divided in turn into panniculitis without vasculitis and panniculitis with vasculitis. The diagnosis of various types of panniculitis can sometimes be very difficult, due to the histopathological changes that occur in the various evolutionary stages of the lesions. Thus, the positive diagnosis relies on the corroboration of clinical data, histopathological examination, and ancillary laboratory tests. We provide an overview of the clinical and histopathological features of panniculitis, classified according to the histopathological criteria.
This study aimed to determine if: 1) C-reactive protein (CRP) level correlated with PTSD symptom severity as measured by PTSD Checklist-5 (PCL-5), and 2) ketone supplement reduced PTSD symptoms. Twenty participants with PTSD were randomly assigned to a ketone supplementation or placebo group and evaluated for 6-weeks for PTSD symptom severity and CRP levels. The Spearman Rank correlation between PCL-5 and CRP was positive, but not statistically significant. Mixed models on the ranks of the data were used to examine the difference in PCL-5 and CRP between ketone and control groups over time. Median PCL-5 at the pre-test was higher than at the post-test in the ketone group but not in the control. The reduction of PCL-5 medians between ketone and control groups at the post-test was not different. The median pre-test CRP was not different from than post-test in the ketone group or control group. This pilot study did not find a correlation between CRP levels and PTSD symptom severity but was limited by a lack of CRP data collection due to the loss of follow-up. PTSD symptom severity was not altered by 6 weeks of chronic ketone salt supplementation compared to the control group but should be examined in a larger sample size for further verification.
Colorectal cancer is the third most common cancer worldwide and represents a significant major public health issue. Therefore, the interest in detecting the multiple factors implied in the development of cancer has increased recently. One of the factors could be the Helicobacter pylori infection, but a direct causal connection is missing. This gram-negative bacterium infects approximately 4 billion individuals globally and various conditions such as gastroduodenal ulcers or gastric adenocarcinomas can be induced by it. Some of the reported carcinogenic effects of Helicobacter pylori bacterium are hypergastrinemia, chronic inflammation, dysbiosis, and toxin production. Each of these elements involved in the pathogenesis has various mechanisms of action. Dysbiosis can occur due to various treatments for the eradication of the Helicobacter pylori infection. This bacterium also has a proinflammatory effect at the gastric level which can predispose to the development of dysplasia or even neoplasia. The toxins produced by this bacterium, such as the vacuolating cytotoxin A, promote inflammation. In this review, we discuss the possible connections between the Helicobacter pylori infection, through its diverse pathogenic mechanisms, and colorectal neoplasm. Prospective studies are necessary to determine whether there certainly is a direct link between the two conditions.
