Nurses' perceptions of pain management adequacy in mechanically ventilated patients
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01.08.2019 |
Asman O.
Slutsker E.
Melnikov S.
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Journal of Clinical Nursing |
10.1111/jocn.14896 |
0 |
Ссылка
© 2019 John Wiley & Sons Ltd Aims and objectives: To examine how nurses' knowledge of behaviours indicating pain in mechanically ventilated patients and self-perceived collaboration between nurses and physicians affects the adequacy of departmental pain management. Background: Pain management is a vital factor of medical treatment in a hospital setting. Inadequate pain management requires attention both from a patient-focused perspective and from a departmental one. It would be particularly troubling in the case of inadequate pain management of mechanically ventilated patients. Design: The study utilised a cross-sectional design. The instruments developed were validated by a focus group of 25 pain management nurses, who reviewed the questionnaire for face validity, feasibility and comprehensibility, and who did not participate in the study. The questionnaire was revised, readjusted and formulated based on their responses and comments. Methods: A self-administered questionnaire administered in Israel with a convenience sample of 187 registered nurses (RN) from internal medicine and surgical departments and ICUs. Data were collected during February–May 2015. The “STROBE” EQUATOR checklist was used. Results: Nurses working in the ICU scored significantly higher on knowledge of behaviours indicating pain in mechanically ventilated patients and on self-perceived collaboration between nurses and physicians. Self-perceived collaboration between physicians and nurses was positively correlated with perceived departmental pain treatment adequacy. Self-perceived collaboration between nurses and physicians, knowledge of behaviours indicating pain in mechanically ventilated patients and seniority (with a borderline significance) explained 27% of the variance of perceived departmental pain management. Conclusion: Nurses' knowledge of behaviours indicating pain in mechanically ventilated patients, as well as self-perceived collaboration between nurses and physicians, promotes reported adequate pain management. Relevance to clinical practice: Pain management would benefit from being conducted as a well-performed interprofessional self-perceived collaborative practice. Knowledgeable nurses tend to critically assess the level of departmental pain management.
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Role of a receptor-like kinase K1 in pea Rhizobium symbiosis development
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01.11.2018 |
Kirienko A.
Porozov Y.
Malkov N.
Akhtemova G.
Le Signor C.
Thompson R.
Saffray C.
Dalmais M.
Bendahmane A.
Tikhonovich I.
Dolgikh E.
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Planta |
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2 |
Ссылка
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. Main conclusion: The LysM receptor-like kinase K1 is involved in regulation of pea-rhizobial symbiosis development. The ability of the crop legume Pisum sativum L. to perceive the Nod factor rhizobial signals may depend on several receptors that differ in ligand structure specificity. Identification of pea mutants defective in two types of LysM receptor-like kinases (LysM-RLKs), SYM10 and SYM37, featuring different phenotypic manifestations and impaired at various stages of symbiosis development, corresponds well to this assumption. There is evidence that one of the receptor proteins involved in symbiosis initiation, SYM10, has an inactive kinase domain. This implies the presence of an additional component in the receptor complex, together with SYM10, that remains unknown. Here, we describe a new LysM-RLK, K1, which may serve as an additional component of the receptor complex in pea. To verify the function of K1 in symbiosis, several P. sativum non-nodulating mutants in the k1 gene were identified using the TILLING approach. Phenotyping revealed the blocking of symbiosis development at an appropriately early stage, strongly suggesting the importance of LysM-RLK K1 for symbiosis initiation. Moreover, the analysis of pea mutants with weaker phenotypes provides evidence for the additional role of K1 in infection thread distribution in the cortex and rhizobia penetration. The interaction between K1 and SYM10 was detected using transient leaf expression in Nicotiana benthamiana and in the yeast two-hybrid system. Since the possibility of SYM10/SYM37 complex formation was also shown, we tested whether the SYM37 and K1 receptors are functionally interchangeable using a complementation test. The interaction between K1 and other receptors is discussed.
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Cellulose-based scaffolds for fluorescence lifetime imaging-assisted tissue engineering
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15.10.2018 |
O'Donnell N.
Okkelman I.
Timashev P.
Gromovykh T.
Papkovsky D.
Dmitriev R.
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Acta Biomaterialia |
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6 |
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© 2018 Acta Materialia Inc. Quantitative measurement of pH and metabolite gradients by microscopy is one of the challenges in the production of scaffold-grown organoids and multicellular aggregates. Herein, we used the cellulose-binding domain (CBD) of the Cellulomonas fimi CenA protein for designing biosensor scaffolds that allow measurement of pH and Ca2+ gradients by fluorescence intensity and lifetime imaging (FLIM) detection modes. By fusing CBD with pH-sensitive enhanced cyan fluorescent protein (CBD-ECFP), we achieved efficient labeling of cellulose-based scaffolds based on nanofibrillar, bacterial cellulose, and decellularized plant materials. CBD-ECFP bound to the cellulose matrices demonstrated pH sensitivity comparable to untagged ECFP (1.9–2.3 ns for pH 6–8), thus making it compatible with FLIM-based analysis of extracellular pH. By using 3D culture of human colon cancer cells (HCT116) and adult stem cell-derived mouse intestinal organoids, we evaluated the utility of the produced biosensor scaffold. CBD-ECFP was sensitive to increases in extracellular acidification: the results showed a decline in 0.2–0.4 pH units in response to membrane depolarization by the protonophore FCCP. With the intestinal organoid model, we demonstrated multiparametric imaging by combining extracellular acidification (FLIM) with phosphorescent probe-based monitoring of cell oxygenation. The described labeling strategy allows for the design of extracellular pH-sensitive scaffolds for multiparametric FLIM assays and their use in engineered live cancer and stem cell-derived tissues. Collectively, this research can help in achieving the controlled biofabrication of 3D tissue models with known metabolic characteristics. Statement of Significance: We designed biosensors consisting of a cellulose-binding domain (CBD) and pH- and Ca2+-sensitive fluorescent proteins. CBD-tagged biosensors efficiently label various types of cellulose matrices including nanofibrillar cellulose and decellularized plant materials. Hybrid biosensing cellulose scaffolds designed in this study were successfully tested by multiparameter FLIM microscopy in 3D cultures of cancer cells and mouse intestinal organoids.
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Phase I/II trial of pimasertib plus gemcitabine in patients with metastatic pancreatic cancer
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15.10.2018 |
Van Cutsem E.
Hidalgo M.
Canon J.
Macarulla T.
Bazin I.
Poddubskaya E.
Manojlovic N.
Radenkovic D.
Verslype C.
Raymond E.
Cubillo A.
Schueler A.
Zhao C.
Hammel P.
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International Journal of Cancer |
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8 |
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© 2018 UICC The selective MEK1/2 inhibitor pimasertib has shown anti-tumour activity in a pancreatic tumour model. This phase I/II, two-part trial was conducted in patients with metastatic pancreatic adenocarcinoma (mPaCa) (NCT01016483). In the phase I part, oral pimasertib was given once daily discontinuously (5 days on/2 days off treatment) or twice daily continuously (n = 53) combined with weekly gemcitabine (1,000 mg/m2) in 28-day cycles to identify the recommended phase II dose (RP2D) of pimasertib. In the phase II part, patients were randomised to pimasertib (RP2D) or placebo plus weekly gemcitabine (n = 88) to investigate progression-free survival (PFS), overall survival (OS) and safety. The RP2D was determined to be 60 mg BID. PFS and OS outcomes did not indicate any treatment benefit for pimasertib over placebo in combination with gemcitabine (median PFS 3.7 and 2.8 months, respectively, HR = 0.91, 95% CI: 0.58–1.42: median OS 7.3 vs. 7.6 months, respectively). KRAS status did not influence PFS or OS. The incidence of grade ≥3 adverse events was 91.1% and 85.7% for pimasertib/gemcitabine and placebo/gemcitabine respectively, but there was a higher incidence of ocular events with pimasertib/gemcitabine (28.9% vs. 4.8% for placebo/gemcitabine). In conclusion, no clinical benefit was observed with first-line pimasertib plus gemcitabine compared with gemcitabine alone in patients with mPaCa.
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Impact of endoscopic enucleation of the prostate with thulium fiber laser on the erectile function
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12.10.2018 |
Enikeev D.
Glybochko P.
Rapoport L.
Okhunov Z.
O'Leary M.
Potoldykova N.
Sukhanov R.
Enikeev M.
Laukhtina E.
Taratkin M.
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BMC Urology |
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5 |
Ссылка
© 2018 The Author(s). Background: The impact of number of endoscopic enucleation of the prostate techniques (holmium laser enucleation - HoLEP for example) on erectile function have already been investigated. However, the thulium-fiber laser, in this setting remains unstudied. In this study, we compared sexual function outcomes in patients with benign prostatic hyperplasia (BPH) treated with transurethral resection of the prostate (TURP) or thulium-fiber laser enucleation (ThuFLEP). Methods: We performed a retrospective analysis of patients who underwent transurethral resection and endoscopic enucleation of the prostate for BPH; inclusion criteria was the presence of infravesical obstruction (IPSS > 20, Qmax < 10 mL/s). Erectile function (EF) was assessed using the International Index of Erectile Function (IIEF-5) both prior to endoscopic examination, and six months after. Results: A total of 469 patients with BPH were included in the study; of these, 211 underwent to ThuFLEP, and 258 TURP. Preoperative IIEF-5 in TURP and ThuFLEP groups were 11.7 (±4.5) and 11.1 (±5.0), respectively (p = 0.17). At six month the IIEF-5 score was unchanged (p = 0.26 and p = 0.08) and comparable in both groups (p = 0.49). However, mean IIEF-5 score shown significant increase of 0.72 in ThuFLEP group, comparing to decrease of 0.24 in TURP patients (p < 0.001). Conclusions: Both TURP and ThuFLEP are effective modalities in the management of infravesical obstruction due to BPH. At six months follow-up after surgery, both techniques lead to comparable IIEF-5 score. However, our results demonstrated that the ThuFLEP is more likely to preserve the erectile function leading to increase of IIEF-5 at six months in contrast to TURP which lead to slight drop in IIEF-5 score.
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Peroxidase Activity of Human Hemoproteins: Keeping the Fire under Control
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08.10.2018 |
Vlasova I.
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Molecules |
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4 |
Ссылка
© 2018 by the author. The heme in the active center of peroxidases reacts with hydrogen peroxide to form highly reactive intermediates, which then oxidize simple substances called peroxidase substrates. Human peroxidases can be divided into two groups: (1) True peroxidases are enzymes whose main function is to generate free radicals in the peroxidase cycle and (pseudo)hypohalous acids in the halogenation cycle. The major true peroxidases are myeloperoxidase, eosinophil peroxidase and lactoperoxidase. (2) Pseudo-peroxidases perform various important functions in the body, but under the influence of external conditions they can display peroxidase-like activity. As oxidative intermediates, these peroxidases produce not only active heme compounds, but also protein-based tyrosyl radicals. Hemoglobin, myoglobin, cytochrome c/cardiolipin complexes and cytoglobin are considered as pseudo-peroxidases. Peroxidases play an important role in innate immunity and in a number of physiologically important processes like apoptosis and cell signaling. Unfavorable excessive peroxidase activity is implicated in oxidative damage of cells and tissues, thereby initiating the variety of human diseases. Hence, regulation of peroxidase activity is of considerable importance. Since peroxidases differ in structure, properties and location, the mechanisms controlling peroxidase activity and the biological effects of peroxidase products are specific for each hemoprotein. This review summarizes the knowledge about the properties, activities, regulations and biological effects of true and pseudo-peroxidases in order to better understand the mechanisms underlying beneficial and adverse effects of this class of enzymes.
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Clinical implications of hepatitis b virus rna and covalently closed circular dna in monitoring patients with chronic hepatitis b today with a gaze into the future: The field is unprepared for a sterilizing cure
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05.10.2018 |
Kostyusheva A.
Kostyushev D.
Brezgin S.
Volchkova E.
Chulanov V.
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Genes |
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2 |
Ссылка
© 2018, MDPI AG. All rights reserved. Chronic hepatitis B virus (HBV) infection has long remained a critical global health issue. Covalently closed circular DNA (cccDNA) is a persistent form of the HBV genome that maintains HBV chronicity. Decades of extensive research resulted in the two therapeutic options currently available: nucleot(s)ide analogs and interferon (IFN) therapy. A plethora of reliable markers to monitor HBV patients has been established, including the recently discovered encapsidated pregenomic RNA in serum, which can be used to determine treatment end-points and to predict the susceptibility of patients to IFN. Additionally, HBV RNA splice variants and cccDNA and its epigenetic modifications are associated with the clinical course and risks of hepatocellular carcinoma (HCC) and liver fibrosis. However, new antivirals, including CRISPR/Cas9, APOBEC-mediated degradation of cccDNA, and T-cell therapies aim at completely eliminating HBV, and it is clear that the diagnostic arsenal for defining the long-awaited sterilizing cure is missing. In this review, we discuss the currently available tools for detecting and measuring HBV RNAs and cccDNA, as well as the state-of-the-art in clinical implications of these markers, and debate needs and goals within the context of the sterilizing cure that is soon to come.
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On the epidemiology of Plasmodium vivax malaria: Past and present with special reference to the former USSR
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04.10.2018 |
Kondrashin A.
Morozova L.
Stepanova E.
Turbabina N.
Maksimova M.
Morozov E.
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Malaria Journal |
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3 |
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© 2018 The Author(s). Presently, many malaria-endemic countries in the world are transitioning towards malaria elimination. Out of the 105 countries with ongoing malaria transmission, 10 countries are classified as being in the pre-elimination phase of malaria control, and 9 countries are in the malaria elimination stage, whereas 7 countries are classified as being in the prevention of introduction phase. Between 2000 and 2015, 17 countries eliminated malaria (i.e., attained zero indigenous cases for 3 years or more). Seven countries were certified by the WHO as having successfully eliminated malaria. The purpose of this review was to analyse the epidemiological characteristics of vivax malaria during the various stages of malaria eradication (elimination) programmes in different countries in the past and present. Experiences of the republics of the former USSR with malaria are interesting, particularly since the data overwhelmingly were published in Russian and might not be known to western readers. Among the most important characteristics of Plasmodium vivax epidemiology at present are changes in the ratio of the short-incubation P. vivax to long-incubation P. vivax, the incidence of severe P. vivax cases, the increased numbers of asymptomatic P. vivax cases, the reduced response to anti-malarials and a few others. Various factors contributing towards the peculiarities of P. vivax epidemiology are discussed.
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Development of composition and manufacturingmethod for combination drug product based onchitosan-containing pharmaceutical substances
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01.10.2018 |
Brkich L.
Pyatigorskaya N.
Brkich G.
Krasnyuk I.
Korol L.
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International Journal of Pharmaceutical Research |
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0 |
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© 2018, Advanced Scientific Research. All rights reserved. The composition described in current article is based on derivatives of glucosamine and acrylate polymers and is intended for treatment of various infected wounds. A semi-transparent gel demonstrates complex therapeutic activity due to several active pharmaceutical ingredients (AFIs): chitosan, chymopsin, miramistin, and lidocaine hydrochloride. Mechanism of action of the developed drug is complex and includes several therapeutic effects: enzymatic biochemical wound debridement due to lysis of denaturated proteins (without healthy tissues damaging); indirect antimicrobial activity due to chymopsin that promotes lysis of microbial growth medium; direct antimicrobial effect is provided by miramistine; and the pain is reduced by lydocaine and intrinsic cooling effect of gel dosage form. Generalizing the literature data about the products used in the infected wounds treatment, the following AFIs were chosen for the development of the topical gel: complex of proteolytic agent chymopsin and chitosan, chitosan-miramistin complex, and lidocaine anesthetic. Hydroxypropyl methylcellulose, polyacrylamide, and glycerol were utilized as excipients. Proper development of vehicles for gels used in wound treatment can be justified by the necessity of soft action on the wound, required cooling effect, good release of AFIs from the matrix, and prevention of microbial growth.
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The current state and future prospects of depression research (Clinical and classification problems)
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01.10.2018 |
Ivanets N.
Kinkulkina M.
Tikhonova Y.
Avdeeva T.
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Zhurnal Nevrologii i Psihiatrii imeni S.S. Korsakova |
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0 |
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© 2018, Media Sphera Publishing Group. All rights reserved. Despite decades of research, neurobiological studies of depression haven’t achieved significant results. Many experts propose that one of the main reasons for this failure is current diagnostic standards not considering the heterogeneity and polymorphism of depression. Research is unable to identify specific neurobiological changes due to formal diagnosis «major depressive disorder» and new diagnostic criteria are needed. RDoC (Research Domain Criteria) has intensified the confrontation between biological and clinical researchers and changes in approach to depressive psychopathology are discussed. A review presents the recent approaches used in studies of depressive disorders, the methodology they use, the scientific paradigms they rely on.
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Possible applications of rac-hopantenic acid in the treatment of cognitive, anxiety and depressive disorders in patients with essential arterial hypertension
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01.10.2018 |
Ostroumova O.
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Zhurnal Nevrologii i Psihiatrii imeni S.S. Korsakova |
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0 |
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© 2018, Media Sphera Publishing Group. All rights reserved. Essential arterial hypertension (AH) is one of the main risk factors for the development of cognitive impairment and dementia. Cognitive decline is an early sign of brain damage as a target organ of hypertension, it occurs even in patients with uncomplicated hypertension with minimal duration of disease. Cognitive impairment progresses with increasing age and hypertension duration, as well as in non-controlled AH. In patients with hypertension, the prevalence of emotional disorders — anxiety and depression is also high. In addition to antihypertensive therapy, hypertensive patients need correction of concomitant cognitive and emotional disorders. Rat-gopantenic acid simultaneously corrects both emotional and cognitive impairment, and has a good tolerability profile as well. An analysis of the evidence base of rac-gopantenic acid showed its high efficacy in the treatment of mental disorders and good tolerability along with a positive effect on somatic disorders and results of antihypertensive therapy. Taken together, they enhance adherence to treatment and, consequently, reduce the cardiovascular risk.
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Novel aminochromone derivative inhibits tumor growth on xenograft model of lung cancer in mice
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01.10.2018 |
Blinova E.
Dudina M.
Suslova I.
Samishina E.
Blinov D.
Roshchin D.
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Journal of Advanced Pharmaceutical Technology and Research |
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1 |
Ссылка
© 2018 Medknow Publications. All rights reserved. 2-Amino-4H-chromene derivatives possess anticancer property proved on different in vivo and in vitro models of malignancies such breast, nasopharyngeal, bladder, ovary carcinomas, astrocytoma, and osteosarcoma. We assumed it might be effective to apply one of the derivatives as promising approach to lung carcinoma treatment.To evaluate how novel 4-Aryl substituted 2-Amino-4H-chromene derivative AX-554 impacts tumor growth and progression, as well as possible mechanisms for anticancer effect development on in vivo patient-derived heterotopic xenograft model of lung carcinoma in mice. This was an experimental in vivo study. 40 nu/nu BALB/c female mice were randomly allocated into four equal groups: Intact, control, reference, and main group. Animals of three latter groups were ingrafted with human-derived lung adenocarcinoma. Antitumor and antimetastatic action of AX-554 novel aminochromone derivative as a substance were studied. Mice survival was registered. Kinase of anaplastic lymphoma (ALK), tubulin Beta-3 (TUBB3), and c-mesenchymal-epithelial transition (MET) concentrations in the prime tumor nodes homogenates were determined by quantitative enzyme-linked immunosorbent assay. Dannet's parametric criterion and the nonparametric exact Fisher test were used. The normality of the distribution was determined using ANOVA. The survival curve was analyzed using Gehan's criterion with the Yates's correction. Aminochromone derivative possesses an inhibitory effect on human lung adenocarcinoma transplanted into nu/nu BALB/c female mice, as well as significant antimetastatic activity. About 50 mg/kg/day AX-554 intragastric course increases animals' life expectancy of more than 3.3 times when compared with the control and induces remission in 60% of cases. The anticancer effect of the derivative is due to anti-ALK-mediated activation of tumor cells apoptosis and suppression TUBB3-dependent cell proliferation.
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The Expression of Matryoshka Gene Encoding a Homologue of Kunitz Peptidase Inhibitor Is Regulated Both at the Level of Transcription and Translation
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01.10.2018 |
Sheshukova E.
Komarova T.
Ershova N.
Bronstein A.
Dorokhov Y.
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Biochemistry (Moscow) |
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0 |
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© 2018, Pleiades Publishing, Ltd. The gene for Kunitz peptidase inhibitor-like protein (KPILP) contains nested alternative open reading frame (aORF) that controls expression of the maternal mRNA. The content of NbKPILP mRNA in intact leaves of Nicotiana benthamiana plant is low but increases significantly upon extended dark exposure or when foreign nucleic acid is overexpressed in the cells. The NbKPILP gene promoter along with the expressed nested aORF are likely to play an important role in maintaining the levels of NbKPILP mRNA. To elucidate the role of NbKPILP promoter, we isolated a fragment of N. benthamiana chromosomal DNA upstream of the NbKPILP transcription start, sequenced it, and created constructs in which reporter E. coli uidA gene coding for β-D-glucuronidase (GUS) was placed under control of the NbKPILP promoter. By assessing the efficacy of uidA mRNA synthesis directed by the NbKPILP promoter and 35S promoter of the cauliflower mosaic virus in a transient expression system, we showed that the levels of GUS accumulation were comparable for both promoters. Prolonged incubation of the agroinjected plants in the darkness stimulated accumulation of the uidA mRNA directed by the NbKPILP promoter. Our experiments indicate that along with regulation at the transcriptional level, expression of NbKPILP mRNA can be affected by expression of the nested aORF controlled by the polypurine block (PPB) located upstream of its start codon, since introduction of mutations in the PPB resulted in significant accumulation of the NbKPILP mRNA. Nucleotide replacement in the aORF start codon led to the drastic increase in the amounts of NbKPILP mRNA and its protein product.
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Effects of Novel Potential Analgesic Compounds on the Cardiovascular and Respiratory Systems
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01.10.2018 |
Palikova Y.
Skobtsova L.
Palikov V.
Belous G.
Khokhlova O.
Lobanov A.
Slashcheva G.
Rzhevskii D.
Rudenko V.
Kalabina E.
Osipova G.
Andreev Y.
Logashina Y.
Kozlov S.
Yavorskii A.
Elyakova G.
D’yachenko I.
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Pharmaceutical Chemistry Journal |
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0 |
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© 2018, Springer Science+Business Media, LLC, part of Springer Nature. The polypeptide analgesic compounds APCH3 (a TRPV1 receptor inhibitor) and PT1 (a P 2 X 3 receptor inhibitor) were shown not to act on the cardiovascular system or respiratory system when given either as single or multiple doses in mice. The low molecular weight compound sevanol (an ASIC3 receptor inhibitor) had no effect on the cardiovascular system, but prolonged use for 14 days affected measures of the respiratory system, significantly increasing respiratory rate and peak expiratory flow rate.
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Advances in the Application of Modified Nucleotides in SELEX Technology
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01.10.2018 |
Antipova O.
Zavyalova E.
Golovin A.
Pavlova G.
Kopylov A.
Reshetnikov R.
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Biochemistry (Moscow) |
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2 |
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© 2018, Pleiades Publishing, Ltd. Aptamers are widely used as molecular recognition elements for detecting and blocking functional biological molecules. Since the common “alphabet” of DNA and RNA consists of only four letters, the chemical diversity of aptamers is less than the diversity of protein recognition elements built of 20 amino acids. Chemical modification of nucleotides enlarges the potential of DNA/RNA aptamers. This review describes the latest achievements in a variety of approaches to aptamers selection with an extended genetic alphabet.
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Introducing Anatomically Correct CT-Guided Laparoscopic Right Colectomy with D3 Anterior Posterior Extended Mesenterectomy: Initial Experience and Technical Pitfalls
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01.10.2018 |
Gaupset R.
Nesgaard J.
Kazaryan A.
Stimec B.
Edwin B.
Ignjatovic D.
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Journal of Laparoendoscopic and Advanced Surgical Techniques |
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1 |
Ссылка
© 2018, Mary Ann Liebert, Inc. Background: Laparoscopic D3 anterior posterior extended mesenterectomy (D3APEM) in right colectomy has received increased attention. The aim of this study is to prove feasibility, systemize technical accomplishment, and provide short-term outcomes data. Methods: From July 2013 to February 2017, 18 patients with adenocarcinoma in the right colon underwent right colectomy with laparoscopic D3APEM, including lymph nodes anterior and posterior to the superior mesenteric vessels. A reconstructed three-dimensional anatomy map derived from the staging computed tomography was used as a road map at surgery. The procedure was systematized into seven operative steps: Step 1, trocar placement and inspection; Step 2, release of the transverse colon; Step 3, identification of the terminal mesenteric vessels; Step 4, release of the anterior flap; Step 5, division of the transverse mesocolon; Step 6, release of the posterior flap; and Step 7, anastomosis and specimen removal. Patient disposition and variations regarding vascular anatomy and ability to expose consequentially may necessitate a variation in the sequence of the steps. Results: A total of 7 (39%) cases were converted, 3 due to bleeding and 4 due to challenging dissection. Median operative time and blood loss were 276 minutes (168-439 minutes) and 200 mL (< 50-1300 mL), respectively. Postoperative complications occurred in 6 (33%), including 2 (11%) major complication requiring reoperation. Median hospital stay was 5 days (3-13 days). R0 resection was achieved in all cases. Median number of the lymph nodes harvested was 40 (25-86), including 11.5 (4-35) in the D3 volume. Six patients (33%) had positive nodes, 3 of them affecting the D3 zone, including 1 case of a skip metastasis. There was no mortality, and at present all the patients are alive. One patient developed distant lymph node metastases. Conclusion: Laparoscopic right colectomy with D3APEM is feasible, associated with acceptable morbidity and fast recovery; now in readiness for introduction in specialized colorectal institutions.
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Heat-driven size reduction of biodegradable polyelectrolyte multilayer hollow capsules assembled on CaCO<inf>3</inf> template
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01.10.2018 |
Trushina D.
Bukreeva T.
Borodina T.
Belova D.
Belyakov S.
Antipina M.
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Colloids and Surfaces B: Biointerfaces |
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6 |
Ссылка
© 2018 Elsevier B.V. Aiming to explore elevated temperatures as a tool for miniaturization of biodegradable polymer multilayer capsules, assembled on spherical vaterite micron- and submicron-sized particles, we subject the shells composed of dextran sulfate (DS) and poly-L-arginine (Parg) to a heat treatment. Changes of the capsule size are studied at various temperatures and ionic strengths of the continuous phase. Unlike some synthetic polymer multilayer shells (their response to heat treatment depends on the number of layers and their arrangement), the biodegradable Parg/DS capsules exhibit size reduction and profound compaction regardless of their initial size, number of polymer layers and polymer layer sequence. The capsule response to heat is stable at ionic strengths of the continuous phase not exceeding 0.1 M NaCl.
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Oncobox bioinformatical platform for selecting potentially effective combinations of target cancer drugs using high-throughput gene expression data
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01.10.2018 |
Sorokin M.
Kholodenko R.
Suntsova M.
Malakhova G.
Garazha A.
Kholodenko I.
Poddubskaya E.
Lantsov D.
Stilidi I.
Arhiri P.
Osipov A.
Buzdin A.
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Cancers |
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5 |
Ссылка
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. Sequential courses of anticancer target therapy lead to selection of drug-resistant cells, which results in continuous decrease of clinical response. Here we present a new approach for predicting effective combinations of target drugs, which act in a synergistic manner. Synergistic combinations of drugs may prevent or postpone acquired resistance, thus increasing treatment efficiency. We cultured human ovarian carcinoma SKOV-3 and neuroblastoma NGP-127 cancer cell lines in the presence of Tyrosine Kinase Inhibitors (Pazopanib, Sorafenib, and Sunitinib) and Rapalogues (Temsirolimus and Everolimus) for four months and obtained cell lines demonstrating increased drug resistance. We investigated gene expression profiles of intact and resistant cells by microarrays and analyzed alterations in 378 cancer-related signaling pathways using the bioinformatical platform Oncobox. This revealed numerous pathways linked with development of drug resistant phenotypes. Our approach is based on targeting proteins involved in as many as possible signaling pathways upregulated in resistant cells. We tested 13 combinations of drugs and/or selective inhibitors predicted by Oncobox and 10 random combinations. Synergy scores for Oncobox predictions were significantly higher than for randomly selected drug combinations. Thus, the proposed approach significantly outperforms random selection of drugs and can be adopted to enhance discovery of new synergistic combinations of anticancer target drugs.
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Live fast, die young? A review on the developmental trajectories of ADHD across the lifespan
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01.10.2018 |
Franke B.
Michelini G.
Asherson P.
Banaschewski T.
Bilbow A.
Buitelaar J.
Cormand B.
Faraone S.
Ginsberg Y.
Haavik J.
Kuntsi J.
Larsson H.
Lesch K.
Ramos-Quiroga J.
Réthelyi J.
Ribases M.
Reif A.
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European Neuropsychopharmacology |
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© 2018 Radboud University Medical Center Attention-deficit/hyperactivity disorder (ADHD) is highly heritable and the most common neurodevelopmental disorder in childhood. In recent decades, it has been appreciated that in a substantial number of cases the disorder does not remit in puberty, but persists into adulthood. Both in childhood and adulthood, ADHD is characterised by substantial comorbidity including substance use, depression, anxiety, and accidents. However, course and symptoms of the disorder and the comorbidities may fluctuate and change over time, and even age of onset in childhood has recently been questioned. Available evidence to date is poor and largely inconsistent with regard to the predictors of persistence versus remittance. Likewise, the development of comorbid disorders cannot be foreseen early on, hampering preventive measures. These facts call for a lifespan perspective on ADHD from childhood to old age. In this selective review, we summarise current knowledge of the long-term course of ADHD, with an emphasis on clinical symptom and cognitive trajectories, treatment effects over the lifespan, and the development of comorbidities. Also, we summarise current knowledge and important unresolved issues on biological factors underlying different ADHD trajectories. We conclude that a severe lack of knowledge on lifespan aspects in ADHD still exists for nearly every aspect reviewed. We encourage large-scale research efforts to overcome those knowledge gaps through appropriately granular longitudinal studies.
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Changes in the dentoalveolar system in children with chronic kidney disease
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01.09.2018 |
Morozova N.
Mamedov A.
Morozova O.
Maslikova E.
Elovskaya A.
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Pediatriya - Zhurnal im G.N. Speranskogo |
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© 2018; Pediatria Ltd. All rights reserved. Among the leading forms of socially significant pathology is chronic kidney disease (CKD), which has a variety of causes and often originates in early childhood. Risk factors and causes of CKD in children are associated with congenital anomalies in urinary tract (UT) development, accompanied by a persistent chronic infection, urodynamic disorder, remodeling of renal blood flow. Kidneys homeostatic functions disorder causes morphofunctional changes in various organs and tissues, incl. dentoalveolar system (DAS). The negative effect of CKD on the formation of maxillofacial region in children is studied. The data on disorders of jaw bones structures, temporomandibular joint (TMJ) and its function, oral cavity mucous membrane pathology, periodontal diseases, quantitative and qualitative changes in saliva, the defects of teeth hard tissues, pulp calcification caused by this pathology are systematized. The lack of a holistic view of DAS abnormalities development mechanisms in children with kidney damage makes it difficult for the dentist to conduct a timely diagnosis and combine work with doctors of other specialties, such as a pediatrician and a pediatric nephrologist. An integrated approach to managing children with CKD would allow to personify patient management tactics and improve treatment and rehabilitation results.
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