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Fedorov E, Salugina S, Kuzmina N. P02-012 - HAIDS in practice of Russian rheumatologist. Pediatr Rheumatol Online J 2013. [PMCID: PMC3953104 DOI: 10.1186/1546-0096-11-s1-a119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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Vora NM, Basavaraju SV, Feldman KA, Paddock CD, Orciari L, Gitterman S, Griese S, Wallace RM, Said M, Blau DM, Selvaggi G, Velasco-Villa A, Ritter J, Yager P, Kresch A, Niezgoda M, Blanton J, Stosor V, Falta EM, Lyon GM, Zembower T, Kuzmina N, Rohatgi PK, Recuenco S, Zaki S, Damon I, Franka R, Kuehnert MJ. Raccoon rabies virus variant transmission through solid organ transplantation. JAMA 2013; 310:398-407. [PMID: 23917290 PMCID: PMC7552820 DOI: 10.1001/jama.2013.7986] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
IMPORTANCE The rabies virus causes a fatal encephalitis and can be transmitted through tissue or organ transplantation. In February 2013, a kidney recipient with no reported exposures to potentially rabid animals died from rabies 18 months after transplantation. OBJECTIVES To investigate whether organ transplantation was the source of rabies virus exposure in the kidney recipient, and to evaluate for and prevent rabies in other transplant recipients from the same donor. DESIGN Organ donor and all transplant recipient medical records were reviewed. Laboratory tests to detect rabies virus-specific binding antibodies, rabies virus neutralizing antibodies, and rabies virus antigens were conducted on available specimens, including serum, cerebrospinal fluid, and tissues from the donor and the recipients. Viral ribonucleic acid was extracted from tissues and amplified for nucleoprotein gene sequencing for phylogenetic comparisons. MAIN OUTCOMES AND MEASURES Determination of whether the donor died from undiagnosed rabies and whether other organ recipients developed rabies. RESULTS In retrospect, the donor's clinical presentation (which began with vomiting and upper extremity paresthesias and progressed to fever, seizures, dysphagia, autonomic dysfunction, and brain death) was consistent with rabies. Rabies virus antigen was detected in archived autopsy brain tissue collected from the donor. The rabies viruses infecting the donor and the deceased kidney recipient were consistent with the raccoon rabies virus variant and were more than 99.9% identical across the entire N gene (1349/1350 nucleotides), thus confirming organ transplantation as the route of transmission. The 3 other organ recipients remained asymptomatic, with rabies virus neutralizing antibodies detected in their serum after completion of postexposure prophylaxis (range, 0.3-40.8 IU/mL). CONCLUSIONS AND RELEVANCE Unlike the 2 previous clusters of rabies virus transmission through solid organ transplantation, there was a long incubation period in the recipient who developed rabies, and survival of 3 other recipients without pretransplant rabies vaccination. Rabies should be considered in patients with acute progressive encephalitis of unexplained etiology, especially for potential organ donors. A standard evaluation of potential donors who meet screening criteria for infectious encephalitis should be considered, and risks and benefits for recipients of organs from these donors should be evaluated.
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Smith TG, Ellison JA, Ma X, Kuzmina N, Carson WC, Rupprecht CE. An electrochemiluminescence assay for analysis of rabies virus glycoprotein content in rabies vaccines. Vaccine 2013; 31:3333-8. [PMID: 23742991 PMCID: PMC4568986 DOI: 10.1016/j.vaccine.2013.05.081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 05/12/2013] [Accepted: 05/20/2013] [Indexed: 12/15/2022]
Abstract
Vaccine potency testing is necessary to evaluate the immunogenicity of inactivated rabies virus (RABV) vaccine preparations before human or veterinary application. Currently, the NIH test is recommended by the WHO expert committee to evaluate RABV vaccine potency. However, numerous disadvantages are inherent concerning cost, number of animals and biosafety requirements. As such, several in vitro methods have been proposed for the evaluation of vaccines based on RABV glycoprotein (G) quality and quantity, which is expected to correlate with vaccine potency. In this study an antigen-capture electrochemiluminescent (ECL) assay was developed utilizing anti-RABV G monoclonal antibodies (MAb) to quantify RABV G. One MAb 2-21-14 was specific for a conformational epitope so that only immunogenic, natively folded G was captured in the assay. MAb 2-21-14 or a second MAb (62-80-6) that binds a linear epitope was used for detection of RABV G. Vaccine efficacy was also assessed in vivo using pre-exposure vaccination of mice. Purified native RABV G induced a RABV neutralizing antibody (rVNA) response with a geometric mean titer of 4.2IU/ml and protected 100% of immunized mice against RABV challenge, while an experimental vaccine with a lower quality and quantity of G induced a rVNA titer<0.05IU/ml and protected <50% of immunized mice. These preliminary results support the hypothesis that in vivo immunogenicity may be predicted from the in vitro measurement of RABV G using an ECL assay. Based upon these results, the ECL assay may have utility in replacement of the NIH test.
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Shuvaev S, Bushmarinov IS, Sinev I, Dmitrienko AO, Lyssenko KA, Baulin V, Grünert W, Tsivadze AY, Kuzmina N. Copper(II) Complexes with Aromatico-Phosphorylated Phenols - Synthesis, Crystal Structures, and X-ray Photoelectron Spectroscopy. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300540] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ellison JA, Johnson SR, Kuzmina N, Gilbert A, Carson WC, VerCauteren KC, Rupprecht CE. Multidisciplinary Approach to Epizootiology and Pathogenesis of Bat Rabies Viruses in the United States. Zoonoses Public Health 2012; 60:46-57. [DOI: 10.1111/zph.12019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Shuvaev S, Kotova O, Utochnikova V, Vaschenko A, Puntus L, Baulin V, Kuzmina N, Tzivadze A. Novel terbium luminescent complexes with o-phosphorylated phenolate ligands. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.02.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kuzmina N, Palmblad J, Mints M. Predictive factors for the occurrence of idiopathic menorrhagia: evidence for a hereditary trait. Mol Med Rep 2011; 4:935-9. [PMID: 21701778 DOI: 10.3892/mmr.2011.514] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Accepted: 05/20/2011] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to assess predictive factors for occurrence of idiopathic menorrhagia (IM), a disease characterized by abnormal endometrial blood vessel morphology. It was hypothesized that IM exhibits familial clustering (suggesting inheritance) and is associated with other vascular abnormalities, primarily cutaneous hemangiomas. Women with IM (n=152) and healthy, regularly menstruating (n=56) women answered a questionnaire concerning menstrual pattern, susceptibility to bleeding and family history of abnormal gynecological bleeding. Factor analysis with principal component extraction was used to separate predictive factors that may be associated with IM. A total of 35 different items were analyzed. A strong association was found between IM and a family history of heavy menstrual bleeding (r=0.68), but not with cutaneous vascular abnormalities. Our results revealed that a family history of heavy menstrual bleeding may have the highest predictive value for the diagnosis of IM, indicating a hereditary trait.
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Borisov N, Kuzmina N, Bogovalova N, Galyautdinova Z, Gromova N, Krupnov A, Zyablitsin A. 1518 poster SYSTEMS BIOLOGY OF MITOGENIC SIGNALING: A MOLECULAR BASIS FOR ONCOLOGY AND RADIOLOGY. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71640-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Safronikhin A, Ehrlich H, Shcherba T, Kuzmina N, Lisichkin G. Formation of complexes on the surface of nanosized europium fluoride. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.01.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kuzmina N, Malkerova I, Alikhanyan A, Tsymbarenko D, Lyssenko K, Kreinin O, Shuster G, Lakin E, Zolotoyabko E. Novel Low Melting Point Barium and Strontium Precursors for the MOCVD Growth of Barium-Strontium-Titanate Films. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/cvde.200906786] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kotova O, Semenov S, Eliseeva S, Troyanov S, Lyssenko K, Kuzmina N. New Helical Zinc Complexes with Schiff Base Derivatives of β-Diketonates or β-Keto Esters and Ethylenediamine. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900303] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Emtestam L, Kuzmina N, Talme T. Evaluation of the effects of topical clobetasol propionate by visual score, electrical impedance and laser Doppler flowmetry. Skin Res Technol 2007; 13:73-8. [PMID: 17250535 DOI: 10.1111/j.1600-0846.2006.00193.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND/PURPOSE The intensity of steroid-induced skin blanching is usually evaluated subjectively by a trained observer using a visual score although a few methods have been described for doing this objectively. In this study we wished to establish whether the effects of topical steroids can be detected by measuring the electrical impedance of the skin. METHODS Ten healthy volunteers were treated with three concentrations of clobetasol propionate (0.005, 0.05, and 0.5 mg/mL) on the forearm covered by a dressing overnight. On the following morning, we assessed dermal blanching using a visual score, laser Doppler flowmetry and electrical impedance. RESULTS Using the visual score, we found dose-response blanching at all concentrations of clobetasol propionate. The laser Doppler flow values declined significantly after the application of clobetasol propionate (0.005 mg/mL (P<0.01) and 0.5 mg/mL (P<0.05)), as compared with the test site treated with the vehicle alone. Electrical impedance showed a significant increase in phase index after the application of 0.05 mg (P<0.01) and 0.5 mg (P<0.01) of clobetasol propionate, and a significant reduction in real part index after of 0.05 mg/mL (P<0.05) and 0.5 mg/mL (P<0.05) compared with the test site treated with the vehicle alone. The magnitude index and imaginary part index were not affected by this steroid. CONCLUSION Our findings indicate that the dermal blanching induced by topical corticosteroids can be evaluated with a skin impedance spectrometer.
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Hagströmer L, Kuzmina N, Lapins J, Talme T, Emtestam L. Biophysical assessment of atopic dermatitis skin and effects of a moisturizer. Clin Exp Dermatol 2006; 31:272-7. [PMID: 16487108 DOI: 10.1111/j.1365-2230.2005.02054.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND The mechanisms of the skin barrier impairment in patients with atopic dermatitis (AD) are still unknown and need further studying. OBJECTIVE We evaluated the skin of healthy subjects and of patients having atopic dermatitis with an instrument measuring electrical impedance and other noninvasive methods (transepidermal water loss, capacitance) and studied the effects of a new emollient [Proderm (Pro-Q in the USA)]. METHODS After a 2-week washout period, we treated clinically noneczematous skin on the forearm of 24 patients with AD and assessed the effects with the noninvasive methods. 22 healthy subjects were used as controls. RESULTS The findings indicate that barrier function and hydration, and certain patterns of electrical impedance of AD skin are abnormal compared with normal skin. Moreover, there was an increase in hydration in patients' skin after treatment and a reversal of certain impedance indices towards normal. CONCLUSIONS Our findings demonstrate that the moisturizer we used changes some biophysical parameters when applied to atopic skin. In addition, a technique based on electrical impedance seems to give valuable information in atopic skin studies, especially the effects of moisturizers.
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Kuzmina N, Talme T, Lapins J, Emtestam L. Non-invasive preoperative assessment of basal cell carcinoma of nodular and superficial types. Skin Res Technol 2005; 11:196-200. [PMID: 15998331 DOI: 10.1111/j.1600-0846.2005.00120.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND/AIMS Although various biophysical properties can be used to distinguish basal cell carcinoma (BCC) tissue from normal skin, none permits typing of the tumour. In this study, we assessed nodular (NBCC) and superficial (SBCC) types of BCC using three different non-invasive instruments and placed special emphasis on their clinical value as diagnostic tools. METHODS We included 35 patients with 35 tumours (15 NBCC and 20 SBCC), which had been diagnosed clinically. All lesions were evaluated preoperatively with an instrument measuring electrical impedance (IMP). Methods for determining transepidermal water loss (TEWL) and laser Doppler (LD) were also used. Measurements were also made in healthy skin on the contralateral side as reference. The diagnosis was confirmed by histological examination. RESULTS We found clear differences between the lesions and their reference values, using all three bioengineering techniques for NBCC and SBCC. The biophysical parameters of all types vary with anatomical location. Since most of the NBCC were located on the face and most SBCC on the trunk, their baseline impedance characteristics (i.e., impedance indices magnitude index (MIX) and imaginary part index (IMIX)) differed significantly. We therefore compared delta (a difference between the reference and tumour) MIX and IMIX of NBCC and SBCC instead of the absolute figures. We found no significant differences in TEWL, blood flow and IMP between the two types of BCC and attribute this to biological variation and electromagnetic noise. CONCLUSIONS As with LD and TEWL, definite differences in IMP were detected between healthy skin and BCC lesions. However, at this stage of development of the bioimpedance technique, we were unable to distinguish between the two types of BCC. An improved IMP device with semi- invasive probes or a more sophisticated type of data analysis may increase the diagnostic usefulness of the IMP method.
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Lodén M, Kuzmina N, Nyrén M, Edlund F, Emtestam L. Nickel Susceptibility and Skin Barrier Function to Water after Treatment with a Urea-Containing Moisturizer. ACTA ACUST UNITED AC 2005. [DOI: 10.1159/000086159] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kuzmina N, Nyrén M, Lodén M, Edlund F, Emtestam L. Effects of Pretreatment with a Urea-containing Emollient on Nickel Allergic Skin Reactions. Acta Derm Venereol 2005; 85:9-12. [PMID: 15848983 DOI: 10.1080/00015550410021682] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The aim of this study was to evaluate the effect of a moisturizer containing urea on allergic contact dermatitis. Twenty-five nickel-sensitized patients and five controls (non-sensitized volunteers) applied such a moisturizer on the volar side of one forearm twice daily for 20 days, while the other forearm served as the control. After treatment with the moisturizer, patch tests with 0%, 0.5% and 2% NiSO4 in petrolatum were applied in a randomized manner on each arm. After 72 h, the skin reactions were blindly evaluated by clinical scoring and by measuring transepidermal water loss and electrical impedance. After treatment, the baseline transepidermal water loss values were lower and the baseline magnitude impedance index values were higher on the pretreated forearm. According to clinical scoring and measurements with the two physical measurement techniques, the degree of the patch test reactions was equal. All control subjects had negative nickel tests. We concluded that the skin reactivity to nickel in nickel-sensitized patients is not significantly affected by use of the urea-containing moisturizer.
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Kuzmina N, Hagströmer L, Nyrén M, Emtestam L. Basal electrical impedance in relation to sodium lauryl sulphate-induced skin reactions - a comparison of patients with eczema and healthy controls. Skin Res Technol 2003; 9:357-62. [PMID: 14641887 DOI: 10.1034/j.1600-0846.2003.00049.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Identification of subjects at risk for contact dermatitis by screening tests is desirable in order to adjust the preventive measures to individual skin susceptibility. The present study aimed to examine the effects of basic physiological features, such as baseline electrical impedance (IMP) and transepidermal water loss (TEWL), on reactivity to sodium lauryl sulphate (SLS). METHODS On the basis of two previous studies, we re-evaluated the experimental irritant skin reactions (50 microL of 2% SLS in large Finn Chambers for 24 h) on the volar forearms of 29 patients with eczema and 19 healthy controls. RESULTS We found definite differences in the baseline values of IMP, between the patients and the controls. Moreover, patients with eczema showed higher TEWL and lower MIX values on day 3 after exposure to SLS, which may indicate differences in SLS reactivity. After the study, the biophysical parameters of the eczema patients did not return to baseline, which suggests that their skin heals more slowly than that of normal subjects. CONCLUSIONS Our findings indicate that the IMP technique may help to 'detect' chemically vulnerable skin. However, more studies are needed to determine the value of the basal electrical impedance parameters in assessing the risk of developing irritant contact dermatitis.
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Kuzmina N, Duval C, Johnsson S, Boman A, Lindberg M, Emtestam L. Assessment of irritant skin reactions using electrical impedance--a comparison between 2 laboratories. Contact Dermatitis 2003; 49:26-31. [PMID: 14641117 DOI: 10.1111/j.0105-1873.2003.00139.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
To assess interlaboratory variability in the measurement of skin electrical impedance (IMP), we evaluated irritant reactions to sodium lauryl sulfate (SLS) (2%) and nonanoic acid (NAA) (40%) in 2 laboratories. We studied the patch test responses in 40 healthy male and female volunteers between 20 and 30 years of age (20 in each laboratory) with an instrument for measuring IMP. 2 other bioengineering methods and visual scoring were also used to facilitate further illumination of any findings. A strict protocol including all details of the measurement procedure was carefully implemented in both laboratories. The skin reactions were evaluated at 23 h and at 3, 7 and 14 days after exposure. Our findings show that both irritants caused distinct dynamic responses detectable with the bioengineering techniques. Interestingly, the IMP baseline values varied between the 2 laboratories. Moreover, at early stages in the development of irritation (day 1), the irritants induced changes in IMP indices in the opposite direction, which accords with the concept of various IMP patterns of contact dermatitis caused by different irritants. Although the absolute values of IMP differed in both laboratories, the dynamic response patterns were the same.
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Nyrén M, Kuzmina N, Emtestam L. Electrical impedance as a potential tool to distinguish between allergic and irritant contact dermatitis. J Am Acad Dermatol 2003; 48:394-400. [PMID: 12637919 DOI: 10.1067/mjd.2003.96] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVE The allergic contact reaction is a model reaction for studying the cell-mediated immune system of the skin. In this study we use a noninvasive method, electrical impedance (IMP), to compare nickel (Ni) allergic contact reactions with an irritant contact reaction induced by sodium lauryl sulfate, which has already been carefully evaluated with this method. For this purpose, we included only Ni- and sodium lauryl sulfate-induced reactions of very similar appearance. METHODS Various concentrations of Ni sulfate in distilled water were applied on the volar aspect of the forearms of 33 adult women who were allergic to Ni. Assessments were made using visual scoring, a new IMP technique, and transepidermal water loss 3 and 7 days later. RESULTS In the 19 patients who completed the study, 3 of the 4 impedance indices were significantly lower at the sodium lauryl sulfate sites than at the Ni sites on day 3; ie, the mean magnitude (MIX) (P < or = .001), imaginary part (IMAX) (P < or = .001), and real part (RIX) indices (P < or = .01). Unlike the irritant reactions, no significant increases in transepidermal water loss occurred in the allergic contact reactions. This may be because, in reactions of the studied magnitude, an allergic contact reaction does not significantly affect the epidermis because the inflammatory process is located deeper in the dermis than an irritant reaction. CONCLUSION This study suggests that IMP, as used herein, is suitable for distinguishing between contact reactions of allergic and irritant nature. Although pathophysiologic events in the tissue studied significantly modify impedance patterns, little is known about how to interpret the structural and chemical changes underlying these patterns. Studies are needed to determine the relation between anatomic or pathophysiologic parameters, and the findings using IMP and other established methods, such as chemical extraction and histopathology.
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Kuzmina N, Hagströmer L, Emtestam L. Urea and sodium chloride in moisturisers for skin of the elderly--a comparative, double-blind, randomised study. Skin Pharmacol Physiol 2002; 15:166-74. [PMID: 12077469 DOI: 10.1159/000063545] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Urea has long been used to treat dry skin. In the present report, we compared two identical creams, with the exception that one contained both urea and sodium chloride and the other urea alone, in 23 healthy elderly subjects. Following a 2-week wash-out, their clinically non-eczematous, rough- or normal-appearing skin on the anterior proximal part of the lower legs was treated twice daily in a double-blind and randomised manner. We examined the treated areas by measuring transepidermal water loss, capacitance and electrical impedance. Our findings suggest that both moisturisers seem equally effective, at least concerning the ability to reverse impedance indices towards normal, an effect ascribed to changes in hydration of the stratum corneum. However, the relevance of the impedance parameters to the clinical picture is disputable and further studies of moisturisers in elderly subjects are needed.
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Ryazanov M, Nikiforov V, Lloret F, Julve M, Kuzmina N, Gleizes A. Magnetically isolated Cu(II)Gd(III) pairs in the series [Cu(acacen)Gd(pta)(3)], [Cu(acacen)Gd(hfa)(3)], [Cu(salen)Gd(pta)(3)], and [Cu(salen)Gd(hfa)(3)], [acacen = N,N'-ethylenebis(acetylacetoniminate(-)), salen = N,N'-ethylenebis(salicylideniminate(-)), hfa = 1,1,1,5,5,5-hexafluoropentane-2,4-dionate(-), pta = 1,1,1-trifluoro-5,5-dimethylhexane-2,4-dionate(-)]. Inorg Chem 2002; 41:1816-23. [PMID: 11925174 DOI: 10.1021/ic0110777] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[Cu(salen)Gd(pta)(3)] (1), [Cu(acacen)Gd(pta)(3)] (2), and [Cu(acacen)Gd(hfa)(3)] (3) are three heterobimetallic [Cu(II)Gd(III)] complexes of general formula [Cu(SB)Gd(beta-dik)(3)], in which a N,N',O,O' Schiff base (SB) ligand [acacen = N,N'-ethylenebis(acetylacetoniminate(-)), salen = N,N'-ethylenebis(salicylideneiminate(-))] tetracoordinates Cu(II) and chelates Gd(III) as a tris(beta-diketonate) complex [hfa = 1,1,1,5,5,5-hexafluoropentane-2,4-dionate(-); pta = 1,1,1-trifluoro-5,5-dimethylhexane-2,4-dionate(-)]. They crystallize as a triclinic structure (space group P). The cell parameters are a = 9.8616(10) A, b = 12.1976(13) A, c = 18.4187(22) A, alpha = 90.671(14) degrees, beta = 100.588(13) degrees, gamma = 103.684(12) degrees, V = 2113 A(3), and Z = 2 for 1; a = 9.7560(11) A, b = 12.2924(13) A, c = 18.9368(22) A, alpha = 88.449(14) degrees, beta = 87.269(14) degrees, gamma = 67.629(12) degrees, V = 2098 A(3), and Z = 2 for 2; and a = 12.5726(15) A, b = 15.5985(18) A, c = 18.3724(21) A, alpha = 85.963(13) degrees, beta = 85.411(14) degrees, gamma = 80.766(14) degrees, V = 3539 A(3), and Z = 4 for 3. The Cu(O,O')Gd bridging cores show folding angles about O,O' in the range 139 degrees -147 degrees and intramolecular Cu small middle dot small middle dot small middle dotGd distances of about 3.3 A. In the solid state, the molecules form centrosymmetric pseudodimers [Cu(SB)Gd(beta-dik)(3)](2), through the overlap of the Cu(SB) entities. Resulting intradimer Cu...Cu distances are 5.941(1) A for 1, 4.831(1) A for 2, and 4.511(1) and 3.868(1) A for 3 which comprises two symmetrically independent dimers. The temperature dependence of complexes 1-3 was investigated in the range 1.8-300 K and revealed weak ferromagnetic interactions. Results are discussed in light of the structural features and of available magnetostructural data for other heterobimetallic [Cu(II)Gd(III)] complexes, including [Cu(salen)Gd(hfa)(3)] (4) (Ramade, I.; Kahn, O.; Jeannin, Y.; Robert, F. Inorg. Chem. 1997, 36, 930-936).
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Paramonov S, Samoilenkov S, Papucha S, Malkerova I, Alikhanyan A, Kuzmina N, Troyanov SI, Kaul AR. MOCVD of Ag thin films. ACTA ACUST UNITED AC 2001. [DOI: 10.1051/jp4:2001382] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Nikishina I, Ruperto N, Kuzmina N, Shelepina T, Illarionova O, Salougina S, Kaleda M, Borodacheva O. The Russian version of the Childhood Health Assessment Questionnaire (CHAQ) and the Child Health Questionnaire (CHQ). Clin Exp Rheumatol 2001; 19:S131-5. [PMID: 11510316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
We report herein the results of the cross-cultural adaptation and validation into the Russian language of the parent's version of two health related quality of life instruments. The Childhood Health Assessment Questionnaire (CHAQ) is a disease specific health instrument that measures functional ability in daily living activities in children with juvenile idiopathic arthritis (JIA). The Child Health Questionnaire (CHQ) is a generic health instrument designed to capture the physical and psychosocial well-being of children independently from the underlying disease. The Russian CHAQ CHQ were fully validated with 3 forward and 3 backward translations. A total of 146 subjects were enrolled: 86 patients with JIA (23% systemic onset, 39% polyarticular onset, 15% extended oligoarticular subtype, and 23% persistent oligoarticular subtype) and 60 healthy children. The CHAQ clinically discriminated between healthy subjects and JIA patients, with the systemic, polyarticular and extended oligoarticular subtypes having a higher degree of disability, pain, and a lower overall well-being when compared to their healthy peers. Also the CHQ clinically discriminated between healthy subjects and JIA patients, with the systemic onset, polyarticular onset and extended oligoarticular subtypes having a lower physical and psychosocial well-being when compared to their healthy peers. In conclusion the Russian version of the CHAQ-CHQ is a reliable, and valid tool for the functional, physical and psychosocial assessment of children with JIA.
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Kuzmina N, Ryazanov M, Malkerova I, Alikhanyan A, Gleizes A. The Heterotrimetallic Complex [Ni(acacen)KLa(pta)4]: Structural and Thermochemical Studies. Eur J Inorg Chem 2001. [DOI: 10.1002/1099-0682(200103)2001:3<701::aid-ejic701>3.0.co;2-m] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gleizes AN, Senocq F, Julve M, Sanz JL, Kuzmina N, Troyanov S, Malkerova I, Alikhanyan A, Ryazanov M, Rogachev A, Dedlovskaya E. Heterobimetallic single-source precursors for MOCVD. Synthesis and characterization of volatile mixed ligand complexes of lanthanides, barium and magnesium β-diketonates with d-element containing ligands. ACTA ACUST UNITED AC 1999. [DOI: 10.1051/jp4:19998119] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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