Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 57
Filtrar
1.
Fitoterapia ; 177: 106114, 2024 Jul 05.
Artículo en Inglés | MEDLINE | ID: mdl-38971331

RESUMEN

Morus alba L. is a plant with a long history of dietary and medicinal uses. We hypothesized that M. alba possesses a significant biological potential. In that sense, we aimed to generate the chemical, antimicrobial, toxicological, and molecular profile of M. alba leaf and fruit extracts. Our results showed that extracts were rich in vitamin C, phenols, and flavonoids, with quercetin and pterostilbene concentrated in the leaf, while fisetin, hesperidin, resveratrol, and luteolin were detected in fruit. Extracts exhibited antimicrobial activity against all tested bacteria, including multidrug-resistant strains. The widest inhibition zones were in Staphylococcus aureus ATCC 33591. The values of the minimum inhibitory concentration ranged from 15.62 µg/ml in Enterococcus faecalis to 500 µg/ml in several bacteria. Minimum bactericidal concentration ranged from 31.25 µg/ml to 1000 µg/ml. Extracts impacted the biofilm formation in a concentration-dependent and species-specific manner. A significant difference in the frequency of nucleoplasmic bridges between the methanolic extract of fruit (0.5 µg/ml, 1 µg/ml, 2 µg/ml), as well as for the frequency of micronuclei between ethanolic extract of leaf (2 µg/ml) and the control group was observed. Molecular docking suggested that hesperidin possesses the highest binding affinity for multidrug efflux transporter AcrB and acyl-PBP2a from MRSA, as well as for the SARS-CoV-2 Mpro. This study, by complementing previous research in this field, gives new insights that could be of great value in obtaining a more comprehensive picture of the Morus alba L. bioactive potential, chemical composition, antimicrobial and toxicological features, as well as molecular profile.

2.
Diseases ; 10(4)2022 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-36278586

RESUMEN

Enteric viruses are commonly found obligate parasites in the gastrointestinal (GI) tract. These viruses usually follow a fecal-oral route of transmission and are characterized by their extraordinary stability as well as resistance in high-stress environments. Most of them cause similar symptoms including vomiting, diarrhea, and abdominal pain. In order to come in contract with mucosal surfaces, these viruses need to pass the three main lines of defense: mucus layer, innate immune defenses, and adaptive immune defenses. The following atypical gastrointestinal infections are discussed: SARS-CoV2, hantavirus, herpes simplex virus I, cytomegalovirus, and calicivirus. Dysbiosis represents any modification to the makeup of resident commensal communities from those found in healthy individuals and can cause a patient to become more susceptible to bacterial and viral infections. The interaction between bacteria, viruses, and host physiology is still not completely understood. However, with growing research on viral infections, dysbiosis, and new methods of detection, we are getting closer to understanding the nature of these viruses, their typical and atypical characteristics, long-term effects, and mechanisms of action in different organ systems.

3.
Diseases ; 10(3)2022 Jul 08.
Artículo en Inglés | MEDLINE | ID: mdl-35892739

RESUMEN

In recent years, it has been shown that gastrointestinal microflora has a substantial impact on the development of a large number of chronic diseases. The imbalance in the number or type of microbes in the gastrointestinal tract can lead to diseases and conditions, including autism spectrum disorder, celiac disease, Crohn's disease, diabetes, and small bowel cancers. This can occur as a result of genetics, alcohol, tobacco, chemotherapeutics, cytostatics, as well as antibiotic overuse. Due to this, essential taxa can be lost, and the host's metabolism can be severely affected. A less known condition called small intestine bacterial overgrowth (SIBO) can be seen in patients who suffer from hypochlorhydria and small intestine cancers. It is characterized as a state in which the bacterial population in the small intestine exceeds 105-106 organisms/mL. The latest examination methods such as double-balloon enteroscopy and wireless capsule endoscopy have the potential to increase the accuracy and precision of diagnosis and provide better patient care. This review paper aims to summarize the effect of the gastrointestinal environment on chronic disease severity and the development of cancers.

4.
J Infect Dev Ctries ; 16(6): 1081-1088, 2022 06 30.
Artículo en Inglés | MEDLINE | ID: mdl-35797304

RESUMEN

INTRODUCTION: Although vaccines are the safest and most effective means to prevent and control infectious diseases, the increasing rate of vaccine hesitancy and refusal (VHR) has become a worldwide concern. We aimed to find opinions of parents on vaccinating their children and contribute to available literature in order to support the fight against vaccine refusal by investigating the reasons for VHR on a global scale. METHODOLOGY: In this international cross-sectional multicenter study conducted by the Infectious Diseases International Research Initiative (ID-IRI), a questionnaire consisting of 20 questions was used to determine parents' attitudes towards vaccination of their children. RESULTS: Four thousand and twenty-nine (4,029) parents were included in the study and 2,863 (78.1%) were females. The overall VHR rate of the parents was found to be 13.7%. Nineteen-point three percent (19.3%) of the parents did not fully comply with the vaccination programs. The VHR rate was higher in high-income (HI) countries. Our study has shown that parents with disabled children and immunocompromised children, with low education levels, and those who use social media networks as sources of information for childhood immunizations had higher VHR rates (p < 0.05 for all). CONCLUSIONS: Seemingly all factors leading to VHR are related to training of the community and the sources of training. Thus, it is necessary to develop strategies at a global level and provide reliable knowledge to combat VHR.


Asunto(s)
Enfermedades Transmisibles , Vacilación a la Vacunación , Niño , Estudios Transversales , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Padres , Aceptación de la Atención de Salud , Encuestas y Cuestionarios , Vacunación
5.
Front Genet ; 13: 839205, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35559041

RESUMEN

The infection with SARS-CoV-2 virus in cats and dogs raised issue of human-to-animal transmission of SARS-CoV-2 in domestic pets in close contacts with their owners. Our study was designed to research this in the framework of Bosnia and Herzegovina. Using ELISA, AFIAS fluorescent immunoassay, RT-qPCR and WGS on Nanopore MinION platform with ARTIC Network Amplicon sequencing protocol for SARS-CoV-2, we showed that three out of thirteen dogs and one out of five cats from the households with confirmed human cases of COVID-19 in Bosnia-Herzegovina were infected with SARS-CoV-2. The high viral RNA load was detected in samples collected from a 4-year-old male Havanese (Ct = 12.52), a 6-year-old German Shepherd (Ct = 21.36) and a 9-year-old female American Staffordshire terrier (Ct = 25.74). The antibody response in dogs and one cat was observed. The viral genetic sequences from dogs were identical to the sequences detected in the owners suggesting the human-to-animal transmission of the virus. These findings, especially the low initial Ct values detected, from the public health perspective additionally stress the need for precautionary measures to protect both humans and animals.

6.
Bosn J Basic Med Sci ; 21(4): 484-487, 2021 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-33577445

RESUMEN

This is the first report of molecular and epidemiology findings from Bosnia and Herzegovina related to ongoing severe acute respiratory syndrome coronavirus 2 epidemic. Whole genome sequence of four samples from coronavirus disease 2019 (COVID-19) outbreaks was done in two laboratories in Bosnia and Herzegovina (Veterinary Faculty Sarajevo and Alea Genetic Center). All four BiH sequences cluster mainly with European ones (Italy, Austria, France, Sweden, Cyprus, and England). The constructed phylogenetic tree indicates possible multiple independent introduction events. The data presented contribute to a better understanding of COVID-19 in the current reemergence of the disease.


Asunto(s)
COVID-19/virología , SARS-CoV-2/genética , Humanos , Filogenia , SARS-CoV-2/clasificación , Secuenciación Completa del Genoma
7.
Bosn J Basic Med Sci ; 21(1): 111-116, 2021 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-33091331

RESUMEN

Between March 5th and July 25th, 2020, the total number of SARS-CoV-2 confirmed cases in Bosnia and Herzegovina (BH) was 10,090, corresponding to a cumulative incidence rate of 285.7/100,000 population. Demographic and clinical information on all the cases along with exposure and contact information were collected using a standardized case report form. In suspected SARS-CoV-2 cases, respiratory specimens were collected and tested by real-time reverse-transcriptase polymerase chain reaction assay. The dynamic of the outbreak was summarized using epidemiological curves, instantaneous reproduction number Rt, and interactive choropleth maps for geographical distribution and spread. The rate of hospitalization was 14.0%(790/5646) in the Federation of Bosnia and Herzegovina (FBH) and 6.2% (267/4299) in the Republic of Srpska (RS). The death rate was 2.2% (122/5646) in FBH and 3.6% in the RS (155/4299). After the authorities lifted mandatory quarantine restrictions, the instantaneous reproduction number increased from 1.13 on May 20th to 1.72 on May 31st. The outbreak concerns both entities, FBH and RS, and it is more pronounced in those aged 20-44 years. It is important to develop the communication and emergency plan for the SARS-CoV-2 outbreak in BH, including the mechanisms to allow the ongoing notification and updates at the national level.


Asunto(s)
COVID-19/epidemiología , Brotes de Enfermedades , Salud Pública/métodos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Número Básico de Reproducción , Bosnia y Herzegovina/epidemiología , Niño , Preescolar , Planificación en Desastres , Femenino , Geografía , Hospitalización , Humanos , Lactante , Masculino , Persona de Mediana Edad , Cuarentena , Reacción en Cadena en Tiempo Real de la Polimerasa , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Adulto Joven
8.
Med Glas (Zenica) ; 17(2): 301-307, 2020 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-32602297

RESUMEN

Aim Phlebotominae sandflies are primary vectors of phleboviruses, causing the sandfly fever disease. The aim of this study was to detect and report the presence of flaviviruses in Phlebotominae sandflies captured in Bosnia and Herzegovina. Methods After a microscopic and morphometric analysis, the final identification of collected Phlebotomus specimens was confirmed by PCR, using a hemi-nested polymerase chain reaction on extracted and reversely transcribed RNA. Results We obtained a 155 nt long fragment of the viral non-structural protein 5 (NS5) gene (GenBank accession no. MN090154). The acquired nucleotide sequence, provisionally named as Dreznica, showed a maximum of 70-80% identity in 70-88% (110-137 nucleotides) of the query coverage with several Anopheles, Sabethes, Calbertado and Culex flaviviruses. Maximum likelihood phylogenetic analysis showed that the new flavivirus Dreznica clusters together with the flavivirus isolated from Culiseta annulata mosquitos. Conclusion We report the presence of flavivirus in Phlebotominae sandflies, captured in Dreznica, Herzegovina for the first time. The next phase of research will be directed towards virus cultivation, obtaining a longer or complete virus sequence and clarifying the medical and epidemiological importance of the Dreznica virus.


Asunto(s)
Flavivirus , Psychodidae , Animales , Bosnia y Herzegovina , Flavivirus/genética , Humanos , Filogenia , Psychodidae/virología
9.
Med Glas (Zenica) ; 17(2): 308-315, 2020 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-32602298

RESUMEN

Aim To identify E. coli from chicken meat, establish their antibiotic resistance profiles and to confirm ESBL isolates with real time PCR, as well as to identify risk factors and farming practice associated with the antimicrobial resistance E. coli. Methods The study included 100 chicken skin samples collected randomly from retail supermarkets, butcheries and slaughterhouses. Disk susceptibility testing was performed using the Kirby-Bauer method. Detection of ESBL-producing isolates was performed with double disk synergy test. Molecular analysis of phenotypic ESBL-producing Escherichia coli strains was performed at 7500 real time PCR System. Molecular-genetic analysis included detection of CTX-M 1, 2, and 9 gene families and mutations in the TEM and SHV encoding extended spectrum ß-lactamases. Results Prevalence of the phenotypic ESBL-producing E. coli isolates was 29%, and they exhibited remarkable sensitivity to carbapenems (100%) as well as to amikacin (93.10%). All ESBL-producing strains were multidrug resistant. Molecular analysis was performed as the final confirmation of the production of extended spectrum ß - lactamases for 24 isolates out of 29 phenotypicaly ESBL-producing E. coli isolates. Conclusion It is important to pay attention to people's awareness of bacterial antimicrobial resistance in food chain, as well as to understand its effects on human health and the environment. Phenotypic and molecular analysis demonstrated the presence of ESBL-producing E. coli isolates from chicken skin samples.


Asunto(s)
Pollos , Escherichia coli , Animales , Antibacterianos/farmacología , Bosnia y Herzegovina , Escherichia coli/genética , Genotipo , Humanos , beta-Lactamasas/genética
10.
Med Glas (Zenica) ; 17(2): 265-274, 2020 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-32602300

RESUMEN

Aim The damage caused by the COVID-19 pandemic has made the prevention of its further spread at the top of the list of priorities of many governments and state institutions responsible for health and civil protection around the world. This prevention implies an effective system of epidemiological surveillance and the application of timely and effective control measures. This research focuses on the application of techniques for modelling and geovisualization of epidemic data with the aim of simple and fast communication of analytical results via geoportal. Methods The paper describes the approach applied through the project of establishing the epidemiological location-intelligence system for monitoring the effectiveness of control measures in preventing the spread of COVID-19 in Bosnia and Herzegovina. Results Epidemic data were processed and the results related to spatio-temporal analysis of the infection spread were presented by compartmental epidemic model, reproduction number R, epi-curve diagrams as well as choropleth maps for different levels of administrative units. Geovisualization of epidemic data enabled the release of numerous information from described models and indicators, providing easier visual communication of the spread of the disease and better recognition of its trend. Conclusion The approach involves the simultaneous application of epidemic models and epidemic data geovisualization, which allows a simple and rapid evaluation of the epidemic situation and the effects of control measures. This contributes to more informative decision-making related to control measures by suggesting their selective application at the local level.


Asunto(s)
Control de Enfermedades Transmisibles , Infecciones por Coronavirus/prevención & control , Pandemias/prevención & control , Neumonía Viral/prevención & control , Análisis Espacio-Temporal , Betacoronavirus , Bosnia y Herzegovina/epidemiología , COVID-19 , Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/transmisión , Visualización de Datos , Epidemias , Monitoreo Epidemiológico , Mapeo Geográfico , Sistemas de Información en Salud , Humanos , Modelos Estadísticos , Neumonía Viral/epidemiología , Neumonía Viral/transmisión , SARS-CoV-2
11.
Med Glas (Zenica) ; 17(1): 98-105, 2020 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-31359742

RESUMEN

Aim To present combined measles cases data and phylogenetic analysis of the virus circulated in 2018 in the Federation of Bosnia and Herzegovina (FB&H, the entity of Bosnia and Herzegovina), in order to analyse endemic transmission patterns of circulating strains and its implications for elimination efforts. Methods The data were derived from epidemiological case investigations and laboratory diagnoses based on serology, molecular detection and genotyping of the measles virus. Results During 2018 16 measles cases were reported in FB&H, of which five were classified as laboratory confirmed cases, one was an epidemiologically linked case and 10 were clinically compatible cases. Among them 12 (75.00%) cases were unvaccinated or had unknown vaccination status. The most affected population was up to 14 years of age (13/16; 81.25%). None of the cases was fully vaccinated. Viruses of other genetic lineages had been introduced in FB&H in the recent period. Two virus lineages of genotype B3 were identified. Phylogenetic analysis indicated the presence of a unique sequence of measles B3 virus in FB&H (Sarajevo). Conclusion Further strengthening of measles surveillance system and renewed efforts to increase vaccination levels are necessary to prevent disease and for elimination setting.


Asunto(s)
Sarampión , Bosnia y Herzegovina/epidemiología , Genotipo , Humanos , Sarampión/diagnóstico , Sarampión/epidemiología , Sarampión/prevención & control , Virus del Sarampión/genética , Epidemiología Molecular , Filogenia
12.
Med Glas (Zenica) ; 16(2)2019 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-31127709

RESUMEN

Aim This cross-sectional study of a group of women with abnormal cytology and high-risk human papillomavirus (hrHPV) infection compared genotyping HPV DNA and mRNA assays according to two age categories of women (S1: ≤30 and S2: >30 years). Methods The hrHPV DNA positive results of 105 cervical samples of women were pooled and those harbouring HPV-16, 18, 31, 33 and/or 45 DNA were tested for the type specific HPV oncogene E6/E7 overexpression (mRNA). Results Although HPV DNA testing showed a higher proportion of women infected by any of five hrHPVs in S1 group, total agreement of hrHPV DNA and mRNA positive results was higher in S2 group of women (75.8% v. 83.9%). The most prevalent type in both age groups was HPV-16. A 100% agreement of positivity of both tests was noted for HPV-18 and 33 in S1 group, and for HPV-18 in S2 group. Increasing concordance of HPV-16 and 31 DNA and mRNA positive results with the severity of cervical cytology was observed in S1 group of women. Absolute matching (100.0%) of positivity of both diagnostic tests was recorded in S2ASCUS group (for HPV-16, 18 and 33), in S1HSIL (for HPV-16, 18, 31 and 33), in S1LSIL category (for HPV-18 and 33) and in S2HSIL group (for HPV-18). Conclusion The results indicate the possibility of predicting the risk of persistent infection only by HPV DNA typing test, with no need for additional RNA testing in categories of infected women showing a high (absolute) agreement of positivity of both tests.

13.
Med Glas (Zenica) ; 16(1): 13-21, 2019 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-30680979

RESUMEN

Aim To develop an online biofilm calculation tool (Biofilm Classifier), which calculates the optical density cut off value and accordingly determines the biofilm forming categories for the tested isolates by standardized formulas, as well as to compare the results obtained by Biofilm Classifier to manual calculations and the use of predefined values. Methods The biofilm forming capacity of tested strains was evaluated using tissue culture plate method in 96 well plates, and optical density (OD) value of the formed biofilm was measured on an ELISA Microplate reader at 595 nm on a total of 551 bacterial isolates from clinical specimen. Results Comparative analysis indicated that the manual calculation was 100% in accordance with results obtained by the designed software as opposed to the results obtained by use of predefined values for biofilm categorization. When using predefined values compared to manual biofilm categorization for the determination of biofilm positive and biofilm negative strains the specificity was 100%, sensitivity 97.81%, positive predictive value 100%, negative predictive value 96.04% and accuracy 98.57%. Conclusion Considering obtained results, the use of the designed online calculator would simplify the interpretation of biofilm forming capacity of bacteria using tissue culture plate method.


Asunto(s)
Bacterias/crecimiento & desarrollo , Técnicas Bacteriológicas/métodos , Biopelículas/clasificación , Técnicas de Cultivo de Tejidos/métodos , Ensayo de Inmunoadsorción Enzimática , Humanos , Fenómenos Ópticos , Valor Predictivo de las Pruebas , Valores de Referencia , Sensibilidad y Especificidad
14.
Acta Med Acad ; 47(1): 102-116, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29957978

RESUMEN

In this paper we aim to add additional knowledge regarding the occurrence, origin and epidemiological features of the English sweating sickness. The English sweating sickness raged in five devastating epidemics with mortality rates between 30 and 50% between 1485 and 1551 throughout England, and on one occasion also affected mainland Europe, in 1529. The Picardy sweat, generally considered as the English sweating sickness' lesser deadly successor, flared up in France in 1718 and caused 196 localized outbreaks with varying severity all over France and neighboring countries up to 1861. The English sweating sickness has been the subject of numerous attempts to define its origin, but so far all efforts have failed due to lack of material, DNA or RNA, that - using modern techniques and knowledge - could shed light on its cause. Although the time frame in which the English sweating sickness occurred and the geographical spread of the outbreaks is generally known, we will demonstrate here that there was more to it than meets the eye. We found reports of cases of sweating sickness in years before, after and between the 1485, 1508, 1517, 1529 and 1551 epidemics, as well as reports of sweating sickness in Italy and Spain. CONCLUSION: In spite of the fact that the English sweating sickness apparently has not caused casualties for a more than a century now, we suggest that -given the right circumstances- the possibility of re-emergence might still exist. The fact that up until today we have no indication concerning the causal pathogen of the English sweating sickness is certainly not re-assuring.


Asunto(s)
Enfermedad del Sudor/historia , Brotes de Enfermedades , Inglaterra/epidemiología , Europa (Continente)/epidemiología , Historia del Siglo XV , Historia del Siglo XVI , Humanos
15.
Microb Drug Resist ; 24(4): 353-358, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-28922066

RESUMEN

Two basic questions about lysozyme activities on the selected microorganisms were investigated, namely whether lysozyme inhibits biofilm production and which concentrations of the enzyme have the ability to change the natural biofilm producing capacity of different strains of Staphylococcus aureus (methicillin sensitive and resistant), Streptococcus pyogenes, Pseudomonas aeruginosa, and Gardnerella vaginalis. The effect of lysozyme on biofilm formation capacities of 16 strains of selected microorganisms was investigated, whereby four testing replicates have been performed in vitro using the Test Tube method, and the potential of lysozyme to change biofilm forming capacities depending on its concentration, species, and strains of microorganisms is demonstrated. A lysozyme concentration of 30 µg/ml indicated to have the highest inhibiting effect on all tested microorganisms. Furthermore, G. vaginalis was the most sensitive of them all, as its biofilm formation was inhibited in the presence of as low as 2.5 µg/ml of lysozyme. At enzyme concentrations of 7.5-50 µg/ml (with the exception of 30 µg/ml) the biofilm forming capacities of P. aeruginosa were enhanced. Depending on the strain of P. aeruginosa, the total biofilm quantity was either reduced or unaffected at lysozyme concentrations of 2.5, 5, 7.5, and 30 µg/ml. In contrast, lysozyme concentrations below 15 or 20 µg/ml did not affect or increase the volume of biofilm formation, while higher concentrations (15, 20, 25 µg/ml) reduced biofilm formation by 50% (3/6) and 30 µg/ml of biofilm reduced biofilm forming capacity of S. aureus by 100% (6/6). The results of this study are a strong foundation for further research on lysozyme as a modulator of the biofilm forming capacity of different species with the potential to aid in the development of new drugs for the treatment of oral and vaginal infections.


Asunto(s)
Antibacterianos/farmacología , Biopelículas/efectos de los fármacos , Gardnerella vaginalis/efectos de los fármacos , Muramidasa/metabolismo , Pseudomonas aeruginosa/efectos de los fármacos , Staphylococcus aureus/efectos de los fármacos , Gardnerella vaginalis/metabolismo , Pruebas de Sensibilidad Microbiana/métodos , Pseudomonas aeruginosa/metabolismo , Staphylococcus aureus/metabolismo
16.
Environ Res ; 156: 665-673, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28472753

RESUMEN

The main aim of this review is to summarize and discuss the current state of knowledge on chemical toxicity and radioactivity of depleted uranium (DU) and their effect on living systems and cell lines. This was done by presenting a summary of previous investigations conducted on different mammalian body systems and cell cultures in terms of potential changes caused by either chemical toxicity or radioactivity of DU. In addition, the authors aimed to point out the limitations of those studies and possible future directions. The majority of both in vitro and in vivo studies performed using animal models regarding possible effects caused by acute or chronic DU exposure has been reviewed. Furthermore, exposure time and dose, DU particle solubility, and uranium isotopes as factors affecting the extent of DU effects have been discussed. Special attention has been dedicated to chromosomal aberrations, DNA damage and DNA breaks, as well as micronuclei formation and epigenetic changes, as DU has recently been considered a possible causative factor of all these processes. Therefore, this approach might represent a novel area of study of DU-related irradiation effects on health. Since different studies offer contradictory results, the main aim of this review is to summarize and briefly discuss previously obtained results in order to identify the current opinion on DU toxicity and radioactivity effects in relation to exposure type and duration, as well as DU properties.


Asunto(s)
Contaminantes Ambientales/toxicidad , Uranio/toxicidad , Animales , Aberraciones Cromosómicas , Daño del ADN , Metilación de ADN , Epigénesis Genética , Humanos , Radiactividad
17.
Mater Sociomed ; 29(1): 14-16, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28484347

RESUMEN

OBJECTIVE: To investigate possible prognostic values of CD4+, CD8+ T-lymphocytes, CD4/CD8 ratio to clinical course of chickenpox in immunocompetent hosts. MATERIALS AND METHODS: We performed a prospective study which included 69 immunocompetent patients with chickenpox who were addmited to Clinic for infectious disease, Clinical Center University of Sarajevo, in a 18 month period. All patients were divided into two groups depending on clinical presentation on admission. Patients with mild clinical form were dedicated to "outpatient" group, and patients with moderate, severe or life-threatening clinical forms were dedicated to "hospitalized" group. Also 30 healthy volunteers are included in study as a control group. We analyzed values of CD4+, CD8+ percentage, CD4/CD8 ratio with comparison to clinical course of chickenpox. All specimens were taken in acute phase of illness. RESULTS: Values of CD4+ percentage were significantly declined in a group of hospitalized patients, compared to group of outpatients and control group. Values of CD8+ percentage were higher in a group of hospitalized patients, while CD4/CD8 values were lower in comparison to a group of outpatients and control group. CONCLUSION: We found significant correlation between these parameters and clinical course of chickenpox.

18.
Microb Drug Resist ; 23(1): 122-126, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27351410

RESUMEN

Vancomycin-resistant enterococci are among the major causes of nosocomial infections and represent a growing problem in many European countries. Among the most common enterococcal isolates, Enterococcus faecium is considered to be the reservoir of VanA and VanB-mediated resistance to glycopeptides. Enterococci with VanA-mediated resistance can transfer resistance genes to other enterococci and gram-positive bacteria. Hence, monitoring and surveillance of vancomycin-resistant enterococci (VREs) are crucial for the prevention of the spread of glycopeptide resistance. No reports have yet been published that document the resistance rates and typization of VREs in the region of Bosnia and Herzegovina as well as Croatia. In this study, 64 clinical enterococcal strains that were isolated in clinical centers, Mostar, Sarajevo, and Zagreb, were studied and findings regarding characteristics of vancomycin-resistant strains found in the West Balkan region are reported for the first time. All of the strains were identified using conventional phenotypic methods, and the resistance to glycopeptides was determined using the disk diffusion method, Vitek 2, and genotypic Enterococcus assay. The results of genotyping showed that 40 strains were identified as VREs (30% Enterococcus faecalis and 70% E. faecium), while the sensitivity of the phenotypic methods was 87.5%. Furthermore, VanA and VanB resistance types were found in Bosnia and Herzegovina and Croatia, with slightly higher prevalence of the latter (72.5%) over the former (27.5%).


Asunto(s)
Enterococcus faecalis/genética , Enterococcus faecium/genética , Regulación Bacteriana de la Expresión Génica , Infecciones por Bacterias Grampositivas/epidemiología , Resistencia a la Vancomicina/genética , Enterococos Resistentes a la Vancomicina/genética , Antibacterianos/farmacología , Proteínas Bacterianas/genética , Proteínas Bacterianas/metabolismo , Técnicas de Tipificación Bacteriana , Bosnia y Herzegovina/epidemiología , Ligasas de Carbono-Oxígeno/genética , Ligasas de Carbono-Oxígeno/metabolismo , Croacia/epidemiología , Enterococcus faecalis/efectos de los fármacos , Enterococcus faecalis/crecimiento & desarrollo , Enterococcus faecalis/aislamiento & purificación , Enterococcus faecium/efectos de los fármacos , Enterococcus faecium/crecimiento & desarrollo , Enterococcus faecium/aislamiento & purificación , Transferencia de Gen Horizontal , Infecciones por Bacterias Grampositivas/tratamiento farmacológico , Infecciones por Bacterias Grampositivas/microbiología , Infecciones por Bacterias Grampositivas/transmisión , Humanos , Pruebas de Sensibilidad Microbiana , Proyectos Piloto , Plásmidos/química , Plásmidos/metabolismo , Estudios Prospectivos , Vigilancia en Salud Pública , Vancomicina/farmacología , Enterococos Resistentes a la Vancomicina/efectos de los fármacos , Enterococos Resistentes a la Vancomicina/crecimiento & desarrollo , Enterococos Resistentes a la Vancomicina/aislamiento & purificación
19.
Coll Antropol ; 40(1): 1-7, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27301230

RESUMEN

Analysis of Y-chromosome haplogroup distribution is widely used when investigating geographical clustering of different populations, which is why it plays an important role in population genetics, human migration patterns and even in forensic investigations. Individual determination of these haplogroups is mostly based on the analysis of single nucleotide polymorphism (SNP) markers located in the non-recombining part of Y-chromosome (NRY). On the other hand, the number of forensic and anthropology studies investigating short tandem repeats on the Y-chromosome (Y-STRs) increases rapidly every year. During the last few years, these markers have been successfully used as haplogroup prediction methods, which is why they have been used in this study. Previously obtained Y-STR haplotypes (23 loci) from 100 unrelated Turkish males recently settled in Sarajevo were used for the determination of haplogroups via 'Whit Athey's Haplogroup Predictor' software. The Bayesian probability of 90 of the studied haplotypes is greater than 92.2% and ranges from 51.4% to 84.3% for the remaining 10 haplotypes. A distribution of 17 different haplogroups was found, with the Y- haplogroup J2a being most prevalent, having been found in 26% of all the samples, whereas R1b, G2a and R1a were less prevalent, covering a range of 10% to 15% of all the samples. Together, these four haplogroups account for 63% of all Y-chromosomes. Eleven haplogroups (E1b1b, G1, I1, I2a, I2b, J1, J2b, L, Q, R2, and T) range from 2% to 5%, while E1b1a and N are found in 1% of all samples. Obtained results indicate that a large majority of the Turkish paternal line belongs to West Asia, Europe Caucasus, Western Europe, Northeast Europe, Middle East, Russia, Anatolia, and Black Sea Y-chromosome lineages. As the distribution of Y-chromosome haplogroups is consistent with the previously published data for the Turkish population residing in Turkey, it was concluded that the analyzed population could also be recognized as a representative sample of the Turkish population residing in Turkey.


Asunto(s)
Cromosomas Humanos Y/genética , Genética de Población , Haplotipos/genética , Asia Occidental , Pueblo Asiatico/genética , Teorema de Bayes , Bosnia y Herzegovina , Europa (Continente) , Geografía , Humanos , Masculino , Repeticiones de Microsatélite/genética , Polimorfismo de Nucleótido Simple , Federación de Rusia , Turquía/etnología , Población Blanca/genética
20.
Microb Drug Resist ; 22(8): 655-661, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27082787

RESUMEN

Acinetobacter calcoaceticus-A. baumannii complex (ACB complex) is a nosocomial pathogen. Due to its high ability to develop antibiotic resistance, it has become a problematic challenge in the modern healthcare system. The molecular and genetic mechanisms of gaining multidrug resistance in ACB complex are well known. This study focuses on providing an overview of the antibiotic resistance profiles, genetic similarities and resistotypes, and general characteristics of carbapenem-resistant ACB complex (CRACB) in Bosnia and Herzegovina (BiH). In light of the data collected in this study, together with the already known information concerning antibiotic resistance of ACB complex, we intend to further elucidate the antibiotic therapy for CRACB strain resistotypes in BiH.


Asunto(s)
Infecciones por Acinetobacter/epidemiología , Acinetobacter baumannii/genética , Acinetobacter calcoaceticus/genética , Infección Hospitalaria/epidemiología , Farmacorresistencia Bacteriana Múltiple/genética , Resistencia betalactámica/genética , Infecciones por Acinetobacter/tratamiento farmacológico , Infecciones por Acinetobacter/microbiología , Acinetobacter baumannii/clasificación , Acinetobacter baumannii/efectos de los fármacos , Acinetobacter baumannii/aislamiento & purificación , Acinetobacter calcoaceticus/clasificación , Acinetobacter calcoaceticus/efectos de los fármacos , Acinetobacter calcoaceticus/aislamiento & purificación , Aminoglicósidos/farmacología , Antibacterianos/farmacología , Técnicas de Tipificación Bacteriana , Bosnia y Herzegovina/epidemiología , Carbapenémicos/farmacología , Células Clonales , Infección Hospitalaria/tratamiento farmacológico , Infección Hospitalaria/microbiología , Humanos , Filogenia , Combinación Trimetoprim y Sulfametoxazol/farmacología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA