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1.
BMC Psychiatry ; 22(1): 8, 2022 01 04.
Article in English | MEDLINE | ID: mdl-34983461

ABSTRACT

BACKGROUND: Syrian refugees resettled in Turkey show a high prevalence of symptoms of mental disorders. Problem Management Plus (PM+) is an effective psychological intervention delivered by non-specialist health care providers which has shown to decrease psychological distress among people exposed to adversity. In this single-blind pilot randomised controlled trial, we examined the methodological trial procedures of Group PM+ (gPM+) among Syrian refugees with psychological distress in Istanbul, Turkey, and assessed feasibility, acceptability, perceived impact and the potential cost-effectiveness of the intervention. METHODS: Refugees with psychological distress (Kessler Psychological Distress Scale, K10 > 15) and impaired psychosocial functioning (World Health Organization Disability Assessment Schedule, WHODAS 2.0 > 16) were recruited from the community and randomised to either gPM+ and enhanced care as usual (E-CAU) (n = 24) or E-CAU only (n = 22). gPM+ comprised of five weekly group sessions with eight to ten participants per group. Acceptability and feasibility of the intervention were assessed through semi-structured interviews. The primary outcome at 3-month follow-up was symptoms of depression and anxiety (Hopkins Symptoms Checklist-25). Psychosocial functioning (WHODAS 2.0), symptoms of posttraumatic stress disorder and self-identified problems (Psychological Outcomes Profiles, PSYCHLOPS) were included as secondary outcomes. A modified version of the Client Service Receipt Inventory was used to document changes in the costs of health service utilisation as well as productivity losses. RESULTS: There were no barriers experienced in recruiting study participants and in randomising them into the respective study arms. Retention in gPM+ was high (75%). Qualitative analyses of the interviews with the participants showed that Syrian refugees had a positive view on the content, implementation and format of gPM+. No adverse events were reported during the implementation. The study was not powered to detect an effect. No significant difference between gPM+ and E-CAU group on primary and secondary outcome measures, or in economic impacts were found. CONCLUSIONS: gPM+ delivered by non-specialist peer providers seemed to be an acceptable, feasible and safe intervention for Syrian refugees in Turkey with elevated levels of psychological distress. This pilot RCT sets the stage for a fully powered RCT. TRIAL REGISTRATION: ClinicalTrials.gov Identifier NCT03567083 ; date: 25/06/2018.


Subject(s)
Psychological Distress , Refugees , Humans , Pilot Projects , Refugees/psychology , Single-Blind Method , Syria , Turkey
2.
Article in Russian | MEDLINE | ID: mdl-32621473

ABSTRACT

In the presented case report, the complex approach of rehabilitation in the remote period of traumatic brain injury (TBI) allowed the achievement of the significant clinical effect. The authors analyzed the experience of reflex therapy in the treatment of TBI. The effectiveness and potential of acupuncture, objectification of the results are topical issues that require further research.


Subject(s)
Acupuncture Therapy , Brain Injuries, Traumatic , Cognitive Dysfunction , Reflexotherapy , Humans
3.
Phys Rev Lett ; 118(8): 087202, 2017 Feb 24.
Article in English | MEDLINE | ID: mdl-28282179

ABSTRACT

The internal and lattice structures of magnetic Skyrmions in B20-type FeGe are investigated using off-axis electron holography. The temperature, magnetic field, and angular dependence of the magnetic moments of individual Skyrmions are analyzed. The internal Skyrmion shape is found to vary with applied magnetic field. In contrast, the inter-Skyrmion distance remains almost unchanged in the lattice phase over the studied range of applied field. The amplitude of the local magnetic moment is found to vary with temperature, while the Skyrmion shape does not change significantly. Deviations from a circular to a hexagonal Skyrmion structure are observed in the lattice phase, in agreement with the results of micromagnetic simulations.

4.
J Microsc ; 262(1): 92-101, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26625140

ABSTRACT

HRTEM and HAADF STEM of 1DTbBrx@SWCNT meta-nanotubes reveal three structural modifications of 1D nanocrystals within single wall carbon nanotube channels attributed to a different stoichiometry of the guest crystal. For SWCNTs with diameters Dm > 1.4 nm a most complete tetragonal unit cell is observed. When crystallization occurs inside SWCNT with Dm < 1.4 nm 1D TbBrx crystal deforms a nanotube to elliptical shape in cross section. In this case the 1D crystal unit cell becomes monoclinic, with possible loss of a part of bromine atoms. Two modifications of a monoclinic unit cell appear. One of them is characterized by single or pair vacancies in the structure of the 1D crystal. Another structure is explained by peripheral and central bromine atoms loss. An appearance of such modifications can be stimulated by electron irradiation. The loss of bromine atoms is in agreement with chemical analysis data. Electronic properties of obtained meta-nanotubes are investigated using optical absorption and Raman spectroscopy. It is shown that intercalation of terbium bromide into SWCNTs leads to acceptor doping of SWCNTs. According to local EDX analysis and elemental mapping this doping can arise from significant stoichiometry change in 1D nanocrystal indicating an average Tb:Br atomic ratio of 1:2.8 ± 0.1.

5.
Virology ; 468-470: 472-478, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25254945

ABSTRACT

A unique feature of the Pseudomonas aeruginosa giant phage phiKZ is its way of genome packaging onto a spool-like protein structure, the inner body. Until recently, no similar structures have been detected in other phages. We have studied DNA packaging in P. aeruginosa phages EL and Lin68 using cryo-electron microscopy and revealed the presence of inner bodies. The shape and positioning of the inner body and the density of the DNA packaging in EL are different from those found in phiKZ and Lin68. This internal organization explains how the shorter EL genome is packed into a large EL capsid, which has the same external dimensions as the capsids of phiKZ and Lin68. The similarity in the structural organization in EL and other phiKZ-like phages indicates that EL is phylogenetically related to other phiKZ-like phages, and, despite the lack of detectable DNA homology, EL, phiKZ, and Lin68 descend from a common ancestor.


Subject(s)
Bacteriophages/physiology , Bacteriophages/ultrastructure , Genome, Viral/physiology , Pseudomonas aeruginosa/virology , Cryoelectron Microscopy
6.
Bull Exp Biol Med ; 155(6): 788-92, 2013 Oct.
Article in English | MEDLINE | ID: mdl-24288767

ABSTRACT

The effects of multiwalled carbon nanotubes on epitheliocytes of different compartments of the gastrointestinal tract and urothelium of different compartments of the renal nephron were studied in CBA mice. The nanotubes affected mouse gastrointestinal mucosa and renal urothelium. The cell reaction in the macula densa of the renal distal tubules and the immune system reaction to oral nanotubes were detected. A possible effect of nanotubes administered orally on the renal filtration function was hypothesized.


Subject(s)
Drug Carriers/toxicity , Intestinal Mucosa/drug effects , Nanotubes, Carbon/toxicity , Administration, Oral , Animals , Drug Carriers/metabolism , Gastrointestinal Tract/cytology , Gastrointestinal Tract/drug effects , Intestinal Absorption , Kidney Tubules, Distal/drug effects , Male , Mice , Mice, Inbred CBA , Urothelium/drug effects
7.
Vestn Ross Akad Med Nauk ; (12): 4-8, 2013.
Article in Russian | MEDLINE | ID: mdl-24741936

ABSTRACT

UNLABELLED: Currently one of the most promising approaches in development of cancer virotherapy is based on the ability of oncolytic viruses to selective infection and lysis of tumor cells. AIM: The goal of the study was to identify and evaluate perspective oncolytic viruses capable of selectively destroying human glioma cells. PATIENTS AND METHODS: Original GB2m, GA14m and GB22m glioma cell cultures derived from patients were used for evaluating in vitro oncolytic activity of some typical orthopoxviruses, adenoviruses and parvoviruses. RESULTS: The oncolytic activity in the human glioma cell models was confirmed for LIVP and WR strains of vaccinia virus, Adel2 and Ad2del strains with deletions within E1B/55K gene and derived from human adenoviruses type 2 and 5, respectively. CONCLUSIONS: We consider these oncolytic viruses as promising agents for the treatment of human malignant glioma.


Subject(s)
Glioma , Oncolytic Virotherapy/methods , Oncolytic Viruses/physiology , Adenoviridae/physiology , Cell Culture Techniques , Glioma/therapy , Glioma/virology , Humans , Orthopoxvirus/physiology , Parvovirus/physiology , Tumor Cells, Cultured/virology , Virus Physiological Phenomena
8.
J Microsc ; 248(2): 117-9, 2012 Nov.
Article in English | MEDLINE | ID: mdl-22958054

ABSTRACT

The method for imaging of highly sensitive nanostructures unstable under electron beam irradiation is introduced. To reduce charge and thermally generated beam damage, highly conductive multilayered graphene or thin graphite layers were used as supports for nanostructures. Well-defined crystalline structure of graphite layers enables image reconstruction by Fourier filtering and allows maintaining high quality of images. The approach was tested for imaging of highly sensitive quasi one-dimensional SnTe nanocrystals hosted inside single-walled carbon nanotubes. Relying on the filtered images and the image simulation, the structure of one-dimensional SnTe was established as a chain of fcc NaCl type unit cells, connected by the [001] edges with <110> direction coinciding with nanotube axis.

9.
Antibiot Khimioter ; 57(1-2): 3-12, 2012.
Article in Russian | MEDLINE | ID: mdl-22741195

ABSTRACT

Thirty nine water soluble nitroxyl radicals of various classes, belonging to piperidine, pyrrolidine and imidazolidine series were synthesized. Twenty seven of them were cytotoxic in vitro with respect to the tumor cell culture A431. The CC50 of the most active nitroxyl radicals with respect to cells SW480 and A431 was within 0.16-2.5 mM at the selectivity index of 3.91-7.81 in relation to cytotoxicity of the compounds for the cells of the normal L68 phenotype and tumor cells. The tests on the antiviral activity showed that 16 out of 22 nitroxyl radicals had antiviral activity in Vero cell culture with respect to the West Nile virus and Herpes simplex virus of type II respectively. The EC50 ranged within 0.09-3.45 mM. Some of the nitroxyl radicals had only antiviral activity, but a number of the compounds had both cytotoxic properties and antiviral activity.


Subject(s)
Antiviral Agents/pharmacology , Cytotoxins/pharmacology , Free Radicals/pharmacology , Herpes Genitalis/drug therapy , Herpesvirus 2, Human/metabolism , Nitrogen Oxides/pharmacology , West Nile Fever/drug therapy , West Nile virus/metabolism , Animals , Antioxidants/pharmacology , Cell Line, Tumor , Chlorocebus aethiops , Dose-Response Relationship, Drug , Drug Evaluation, Preclinical , Humans , Vero Cells
10.
J Microsc ; 246(3): 309-21, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22582800

ABSTRACT

Nanocomposites consisting of one-dimensional (1D) crystals of the cationic conductors CuI, CuBr and AgBr inside single-walled carbon nanotubes, mainly (n, 0), were obtained using the capillary technique. 1D crystal structure models were proposed based on the high resolution transmission electron microscopy performed on a FEI Titan 80-300 at 80 kV with aberration correction. According to the models and image simulations there are two modifications of 1D crystal: hexagonal close-packed bromine (iodine) anion sublattice (growth direction <001>) and 1D crystal cubic structure (growth direction <112>) compressed transversely to the nanotube (D(m) ∼1.33 nm) axis. Tentatively this kind of 1D crystal can be considered as monoclinic. One modification of the anion sublattice reversibly transforms into the other inside the nanotube, probably initiated by electron beam heating. As demonstrated by micrographs, copper or silver cations can occupy octahedral positions or are statistically distributed across two tetrahedral positions. A 1DAgBr@SWNT (18, 0; 19, 0) pseudoperiodic 'lattice distortion' is revealed resulting from convolution of the nanotube wall function image with 1D cubic crystal function image.

13.
Voen Med Zh ; 331(7): 35-41, 2010 Jul.
Article in Russian | MEDLINE | ID: mdl-20873193

ABSTRACT

The article deals with the air assets meant for evacuations of wounded and ill with delivery of health care during the flight. Perspective projects of aviation medical complex by analogy with "Ckal'pel'- MT" and evacuative--resuscitation plane Il112 "Ptechka" with attach-detach kit of medical equipment were adduced.


Subject(s)
Air Ambulances/standards , Military Medicine/standards , Military Medicine/trends , Military Personnel , Air Ambulances/organization & administration , Humans , Military Medicine/organization & administration , Russia
14.
Voen Med Zh ; 331(4): 38-45, 2010 Apr.
Article in Russian | MEDLINE | ID: mdl-20564950

ABSTRACT

The article presents an observe of vehicles of medical evacuation (VME), existing in medical service of the Armed Forces of RF, intended for transporting of ill and wounded persons with delivery of emergency care in passing. Were presented perspective examples of CMV "Aybolit" and VME of middle and grand evacocapacity, pertained to elaboration. There was made a conclusion that the new generation of VME on chassis of the army all-wheel-drive vehicles, having an armor defense (complex of local defense), system of smooth transporting and loading-unloading system, permits solve questions of evacuation of ill and wounded persons from battle field more effectively.


Subject(s)
Ambulances/organization & administration , Ambulances/standards , Military Medicine , Military Personnel , Humans , Military Medicine/instrumentation , Military Medicine/methods , Military Medicine/organization & administration , Russia , Warfare
15.
Mol Gen Mikrobiol Virusol ; (1): 33-9, 2010.
Article in Russian | MEDLINE | ID: mdl-20361667

ABSTRACT

Complete nucleotide sequence of genomic RNA of hepatitis A virus (HAV) rapidly replicating strain MB-7 was determined. Comparison of nucleotide and deduced amino-acid sequences demonstrated the highest level of identity of MB-7 with strain HAS-15 (above 99%) and high homology with other HAV strains (HM 175/7, CR326, and GBM/HFS) used in production of anti-hepatitis A vaccines. MB-7 was classified as subgenotype IA. Phylogenetic analysis showed that MB-7 is most closely related to the strain HAS-15 and the HAV variants circulating in Russia. Comparative analysis of genomic differences between MB-7 and HAS-15 with other HAV strains revealed among changes characteristic of MB-7 those typical of the described earlier rapidly replicating HAV strains (nt. 149-162 in 5'-untranslated region and changes in the VP3 and 2C genes). These results suggest the functional importance of changes in above-mentioned regions of HAV genome for the increased replication level of MB-7 in vitro.


Subject(s)
Hepatitis A Virus, Human/genetics , Hepatitis A/virology , RNA, Viral/genetics , Virus Replication , Base Sequence , Hepatitis A Virus, Human/classification , Humans , Molecular Sequence Data , Phylogeny , Sequence Analysis, RNA , Sequence Homology, Nucleic Acid , Viral Proteins/genetics
16.
Med Tr Prom Ekol ; (4): 39-43, 2009.
Article in Russian | MEDLINE | ID: mdl-19514170

ABSTRACT

The article presents hygienic evaluation of work conditions for workers engaged into artificial proteous sausage capsule production on "Belkosin" enterprise. According to the study results, health promotion program was specified and aimed to the workers' health preservation.


Subject(s)
Air Pollutants, Occupational/analysis , Food Industry/standards , Hygiene , Occupational Diseases/prevention & control , Occupational Health , Humans , Occupational Diseases/epidemiology , Prevalence , Risk Factors , Russia/epidemiology
17.
J Microsc ; 232(2): 335-42, 2008 Nov.
Article in English | MEDLINE | ID: mdl-19017232

ABSTRACT

Nanocomposites consisting of one-dimensional CuI crystals inside single-walled carbon nanotubes were obtained using the capillary technique. high-resolution transmission electron microscopy investigations of the atomic structure of the encapsulated 1D CuI crystals revealed two types of 1D CuI crystals with growth direction <001> and <110> relative to the bulk hexagonal CuI structure. Atomic structure models were proposed based on the high-resolution transmission electron microscopy images. According to the proposed models and image simulations, the main contrast in the 1D crystal images arises from the iodine atoms whereas copper atoms, with lower atomic number giving lower contrast, are thought to be statistically distributed.

18.
Mol Gen Mikrobiol Virusol ; (3): 36-40, 2007.
Article in Russian | MEDLINE | ID: mdl-17886472

ABSTRACT

Blood serum samples collected from patients with acute hepatitis symptoms admitted to Infectious Disease Hospitals of Novosibirsk, Barnaul, and Irkutsk were studied. The serum samples were tested for the IgM and IgG antibodies to HEV using ELISA. Seropositive samples were tested using RT-PCR for HEV RNA. Two HEV strains were isolated, and thus HEV infection was identified for West Siberia. One of this strains is classified as HEV genotype I; the other, as genotype III. Cell culturing of these strains in green monkey kidney (4647) cells showed an ability of HEV genotype I strain to cause persistent infection.


Subject(s)
Hepatitis E virus/metabolism , Hepatitis E/metabolism , Virus Replication/physiology , Animals , Cell Line , Chlorocebus aethiops , Genotype , Hepatitis Antibodies/blood , Hepatitis B/blood , Hepatitis B/complications , Hepatitis B/genetics , Hepatitis B/metabolism , Hepatitis E/blood , Hepatitis E/complications , Hepatitis E/genetics , Hepatitis E virus/genetics , Hepatitis E virus/isolation & purification , Humans , Immunoglobulin G/blood , Immunoglobulin M/blood , Phylogeny , RNA, Viral/blood , Reverse Transcriptase Polymerase Chain Reaction , Siberia , Virus Cultivation
19.
Vopr Virusol ; 51(6): 39-42, 2006.
Article in Russian | MEDLINE | ID: mdl-17214082

ABSTRACT

The anticancer drug Cancerolysin has been developed, by using the mutant Adel2 variant of human adenovirus serotype 5 designed at the State Research Center of Virology and Biotechnology. Cancerolysin possesses a high degree of replication activity for complementary cells 293 and p53-deficient tumor cells and, at the same time, has significant replication limitations in normal human cells. Preclinical studies of the drug on laboratory animals (mice, rabbits, guinea pigs) have demonstrated its harmlessness and safety. When stored at -40 and -70 degrees C, the drug showed no significant activity throughout the control observational period (1 year).


Subject(s)
Adenoviridae , Antineoplastic Agents , Cytopathogenic Effect, Viral , Oncolytic Virotherapy , Adenoviridae/genetics , Anaphylaxis , Animals , Antineoplastic Agents/administration & dosage , Antineoplastic Agents/immunology , Antineoplastic Agents/toxicity , Cell Line, Transformed , Cell Line, Tumor , Guinea Pigs , Humans , Immunosuppression Therapy , Injections, Intraperitoneal , Injections, Subcutaneous , Macrophages, Peritoneal/immunology , Mice , Mice, Inbred BALB C , Phagocytosis , Rabbits , Virus Replication
20.
Micron ; 36(1): 81-8, 2005.
Article in English | MEDLINE | ID: mdl-15582482

ABSTRACT

Diamond single crystals were grown on the silicon whiskers by a hot filament chemical vapor deposition technique at the filament temperature about 2100 degrees C and the temperature of support 800 degrees C. Specimens were examined by SEM, TEM, HRTEM and SAED. When the filament temperature was about 1900 degrees C globular polycrystalline diamond particles were grown. At a support temperature more then 800 degrees C SiC nanoparticles were formed. To investigate the ion etching process of the silicon tip/diamond system, tips were treated with an Ar(+) beam with energy up to 30 kV. The results depend on fluence: at 4 x 10(18)ion/cm(2) diamonds and partially Si tips were destroyed, amorphous layer was formed (sometimes with nanometric size fragments of diamond); at 1 x 10(18)ion/cm(2) sharpened diamonds (radius of curvature about 20 nm) covered with amorphous layer (radius about 80 nm) probably with nanoclusters of diamond were observed; at 4.4 x 10(17) ion/cm(2) there was no visible tip sharpening but formation of amorphous thick layer occurred. The emission characteristics of Si tips covered with diamond were improved due to ion treatment. Since such tips in our case were covered with amorphous layer containing nanometric size fragments of diamond, we suppose this layer is responsible for electron emission improvement.

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