Is there a difference between GBS triggered by COVID-19 and those of other origins?

Background: Since the outbreak of the coronavirus disease 2019 (COVID-19), an increasing number of Guillain-Barré syndrome (GBS) cases following the infection has been reported. The aim of our study was to detect patients with GBS treated in our hospital over a 1-year period and to compare the characteristics and outcomes of those triggered by COVID-19 with the rest of GBS patients. Our prospective study included 29 patients who were diagnosed with GBS from March 2020 to March 2021.

Rate of progression of Guillain-Barré syndrome is not associated with the short-term outcome of the disease.

Introduction: There are no many data on association between progression rate of Guillain-Barré syndrome (GBS) and disease outcome.

Aim: The aim of our study was to analyze short-term outcome of GBS in relation to the rate of disease progression.

Methods: Our retrospective study included patients diagnosed with GBS in seven tertiary healthcare centers from 2009 to 2014.

Disability and quality of life in Guillain-Barré syndrome - Longitudinal study.

Longitudinal health-related quality of life (QoL) data in Guillain-Barré (GBS) patients are still scarce. We, therefore, investigated health- related QoL in GBS patients from Serbia and surrounding countries during a six-month follow-up period, and analyzed its association with patients' disability. Our study comprised 74 adult patients diagnosed with GBS from May 2017 until May 2018 in seven tertiary healthcare centers.

Congenital esophageal stenosis: a rare malformation of the foregut.

Congenital esophageal stenosis (CES) is a type of esophageal stenosis, and three histological subtypes (tracheobronchial remnants, fibromuscular thickening or fibromuscular stenosis, and membranous webbing or esophageal membrane) are described. Symptoms of CES usually appears with the introduction of the semisolid alimentation. Dysphagia is the most common symptom, but esophageal food impaction, respiratory distress or failure to thrive can be clinical manifestations of CES.

Interplay between STAT3, Cell Adhesion Molecules and Angiogenesis-Related Parameters in Gastric Carcinoma. Does STAT3 Really Have a Prognostic Value?

Gastric cancer (GC) is one of the deadliest malignancies, with the underlying pathophysiological mechanisms still not completely understood. In this study, we aimed to investigate the signal transducer and activator of transcription 3 (STAT3) moleculeconnection with the pathological features of GCs, and the expression of cell adhesive molecules (E-cadherin and β-catenin) and angiogenesis-related factors (vascular endothelial growth factor (VEGF), HIF1α, and CD31)). This study comprised 136 cases of GCs with data related to the patients' demographic characteristics (age, gender) and pathological features (tumor location, gross type, Laurens' type of GC, histological differentiation, invasion depth, lymphovascular invasion and the presence of metastases) which were correlated with STAT3 expression.

Low dose of carvacrol prevents rat pancreas tissue damage after L-arginine application, while higher doses cause pancreatic tissue impairment.

Carvacrol (5-isopropyl-2-methylphenol) is a biologically active monoterpene phenol abundantly present in the essential oils of many Lamiaceae aromatic/ethnomedicinal plants. Herein, we aimed to evaluate the damaging effect of carvacrol to rat pancreatic tissue, but also to assess its possible ameliorative impact on pancreatic damage induced by L-arginine. The toxic and beneficial (in a dose of 10 mg/kg) properties of carvacrol were assessed by measuring serum α-amylase and lipase activities, tissue malondialdehyde (MDA) content, and pathohistological changes in pancreatic tissue.

Comparison between the effects of selenomethionine and S-adenosylmethionine in preventing cholestasis-induced rat liver damage.

We aimed to evaluate whether two methionine-related compounds, S-adenosylmethionine (SAM), and selenomethionine (SM), could lessen liver damage induced by regurgitated bile in a model of rat bile duct ligation (BDL). Hepatoprotective potentials of S-adenosylmethionine and selenomethionine were estimated based on the changes of serum liver damage parameters (aminotransferases, alkaline phosphatase, gamma-glutamyltranspeptidase and lactate dehydrogenase activity, and bilirubin concentration), tissue oxidative [xanthine oxidase (XO) and catalase activity, thiobarbituric acid reactive substances (TBARS) levels] and inflammatory [tumor necrosis factor-alfa (TNF-α) concentration] parameters, and morphological liver tissue alterations that follow cholestasis. The treatment regimens proved themselves able to prevent significant liver damage induced by cholestasis.

Exogenous putrescine affects polyamine and arginine metabolism in rat liver following bile ductus ligation.

Rat bile duct ligation (BDL) represents a useful method that mimics obstructive extrahepatic cholestasis, which is known to be a frequent disorder in humans. Polyamines (putrescine, spermidine, and spermine) are one of the key molecules regulating cell proliferation and differentiation. This work aimed to evaluate the potential beneficial properties of putrescine in rat BDL model by studying several biochemical parameters reflecting liver function and polyamine metabolism.

Development of non-peptide ACE inhibitors as novel and potent cardiovascular therapeutics: An in silico modelling approach.

Angiotensin-converting enzyme (ACE) inhibitors have been acknowledged as first-line agents for the treatment of hypertension and a variety of cardiovascular disorders. In this context, quantitative structure-activity relationship (QSAR) models for a series of non-peptide compounds as ACE inhibitors are developed based on Simplified Molecular Input-Line Entry System (SMILES) notation and local graph invariants. Three random splits into the training and test sets are used.

The anesthetic action of some polyhalogenated ethers-Monte Carlo method based QSAR study.

Up to this date, there has been an ongoing debate about the mode of action of general anesthetics, which have postulated many biological sites as targets for their action. However, postoperative nausea and vomiting are common problems in which inhalational agents may have a role in their development. When a mode of action is unknown, QSAR modelling is essential in drug development.

Pre- vs. post-treatment with melatonin in CCl-induced liver damage: Oxidative stress inferred from biochemical and pathohistological studies.

Aims: The present study was designed to compare the ameliorating potential of pre- and post-treatments with melatonin, a potent natural antioxidant, in the carbon tetrachloride-induced rat liver damage model by tracking changes in enzymatic and non-enzymatic liver tissue defense parameters, as well as in the occurring pathohistological changes.

Main Methods: Rats from two experimental groups were treated with melatonin before and after CCl administration, while the controls, negative and positive, received vehicle/melatonin and CCl, respectively. Serum levels of transaminases, alkaline phosphates, γ-GT, bilirubin, and albumin, as well as a wide panel of oxidative stress-related parameters in liver tissue, were determined in all experimental animals.

Predictors of unmet health care needs in Serbia; Analysis based on EU-SILC data.

Unmet health care needs have been designated as an indicator of equality in access to health care, which provides insight into specific barriers faced by respondents when they need medical services. The purpose of this research was to analyze demographic, socioeconomic, regional characteristics and perception of the health status; and identify predictors of unmet health care needs and consequently determine the size of inequalities in the availability, accessibility and acceptability of health care. The cross-sectional study obtained data from the Survey on Income and Living Conditions in the Republic of Serbia in 2014, based on a sample of 20,069 respondents over 16 years.

[Analysis of the grade of esophagitis, chromendoscopical and histological findings of esophagus in patients with gastroesophageal reflux disease before and after the therapy].

Background/aim: The symptoms of gastroesophageal reflux disease (GERD) are among the most common complaints for which patients are indicated for visiting gastroenterologist. It occurs as a result of the effect made by gastric reflux contents that moves into the esophagus. The prevalence of all forms of GERD is 40%.

The model for the end-stage liver disease and Child-Pugh score in predicting prognosis in patients with liver cirrhosis and esophageal variceal bleeding.

Background/aim: Esophageal variceal bleeding is one of the most frequent and gravest complications of liver cirrhosis, directly life-threatening. By monitoring certain clinical and laboratory hepatocellular insufficiency parameters (Child-Pugh score), it is possible to determine prognosis in patients who are bleeding and evaluate further therapy. Recently, the Model for the End-Stage Liver Disease (MELD) has been proposed as a tool to predict mortality risk in cirrhotic patients.

Gender analysis of sexual behaviour of senior high-school students in Skopje, R. Macedonia - cross-sectional study.

Unlabelled: (Full text is available at http://www.manu.edu.

[Risk and causes of gastroesophageal bleeding in patients with liver cirrhosis].

Background/aim: Variceal bleeding is the most life-threating complication in liver cirrhosis. The aim of this study was to analyze the sources of gastroesophageal bleeding in patients with liver cirrhosis and to ascertain the risk factors of bleeding from esophageal varices.

Methods: This prospective study included 52 patients with liver cirrhosis and portal hypertension.

[Treatment of chronic resistant tuberculosis].

Two groups of patients with chronic pulmonary tuberculosis are presented. The first group of 92 patients were unsuccessfully treated according to current principles of treatment of chronic, resistant pulmonary tuberculosis. In the second group of 11 patients, unsuccessfully treated according to current methods, a new combination of drugs was applied so that a drug of the aminoglycoside group or chinolon group (Amikacin 1000 mg every second day or Ciprofloxacin 750 mg daily) was added to conventional therapy.