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21.
Monica Pandey Kirti Wasnik Shubhra Gupta Monika Singh Sukanya Patra Premshankar Gupta Divya Pareek Somedutta Maity Ragini Tilak Pradip Paik 《RSC advances》2021,12(2):1105
Invasive bacterial and fungal infections have notably increased the burden on the health care system and especially in immune compromised patients. These invasive bacterial and fungal species mimic and interact with the host extracellular matrix and increase the adhesion and internalization into the host system. Further, increased resistance of traditional antibiotics/antifungal drugs led to the demand for other therapeutics and preventive measures. Presently, metallic nanoparticles have wide applications in health care sectors. The present study has been designed to evaluate the advantage of Ag/Sn–SnO2 composite nanoparticles over the single oxide/metallic nanoparticles. By using in silico molecular docking approaches, herein we have evaluated the effects of Ag/Sn–SnO2 nanoparticles on adhesion and invasion responsible molecular targets such as LpfD (E. coli), Als3 (C. albicans) and on virulence/resistance causing PqsR (P. aeruginosa), RstA (Bmfr) (A. baumannii), FoxA (K. pneumonia), Hsp90 and Cyp51 (C. albicans). These Ag/Sn–SnO2 nanoparticles exhibited higher antimicrobial activities, especially against the C. albicans, which are the highest ever reported results. Further, Ag/Sn–SnO2 NPs exhibited interaction with the heme proionate residues such as Lys143, His468, Tyr132, Arg381, Phe105, Gly465, Gly464, Ile471 and Ile304 by forming hydrogen bonds with the Arg 381 residue of lanosterol 1 4α-demethylase and increased the inhibition of the Candida strains. Additionally, the Ag/Sn–SnO2 nanoparticles exhibited extraordinary inhibitory properties by targeting different proteins of bacteria and Candida species followed by several molecular pathways which indicated that it can be used to eliminate the resistance to traditional antibiotics.Mesoporous Ag/Sn–SnO2 composite nanoparticles exhibits extraordinary inhibitory properties by targeting different proteins of bacteria and Candida species which can be used to eliminate the resistance of traditional antibiotics. 相似文献
22.
We studied the serum levels of receptor activator of nuclear factor-κB ligand (RANKL), osteoprotegerin (OPG), pro-matrix metalloproteinase
(MMP) 1, MMP3, and tissue inhibitor of metalloproteinase (TIMP) 1 in patients with juvenile idiopathic arthritis (JIA) and
correlated these with different disease variables. Sera of 70 patients with JIA (ILAR 2001 criteria) and 33 age- and sex-matched
controls were assayed by enzyme-linked immunosorbent assay. Nonparametric tests were used for analysis of data. The subtype
distribution of the JIA patients was: enthesitis-related arthritis (ERA) 24, polyarticular 22, systemic onset 13, oligoarticular
8, and others 3. The median level of RANKL, OPG, pro-MMP1, MMP3, and TIMP-1 were elevated in JIA patients as compared to controls
(p < 0.001). There was no difference in levels among different types of JIA. RANKL/OPG ratio was elevated in all subtypes of
JIA. MMP3/TIMP-1 ratio correlated with measures of disease activity including swollen and tender joint count, erythrocyte
sedimentation rate, and disease activity score (rS 0.28, p < 0.05). Ours is the first study to show elevated RANKL in serum
of patients with JIA. Further, our data suggest that patients with ERA have similar levels to other forms of JIA. Association
of the MMP3/TIMP-1 ratio with disease activity suggests that it may be a useful biomarker for follow-up. 相似文献
23.
24.
Bivas Adhikary Shubhrakanti Sen Pranabashish Banerjee Soumendranath Bandyopadhyay Diptanshu Mukherjee Sekhar Bandyopadhyay Pradip Kumar Aniruddha Majumder 《Indian journal of otolaryngology and head and neck surgery》2014,66(2):162-166
Though haemangioma of cheek is not a very uncommon entity, here we are presenting a case series of four such cases of haemangioma cheek of completely different presentation. One of which is classical maxillary haemangioma and the rest of the others have different and unusual presentations. They all have different radiological features and were managed successfully by different surgical approaches without any recurrence. 相似文献
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27.
Basu P Sankaranarayanan R Mandal R Roy C Das P Choudhury D Datta K Karamakar S Tsu V Chakrabarti RN Siddiqi M;Calcutta Cervical Neoplasia Early Detection Strudy 《International journal of cancer. Journal international du cancer》2002,100(1):92-96
Unaided visual inspection or "downstaging" has been suggested as a potential alternative method for cervical cancer screening in developing countries. Our study was designed to evaluate the accuracy of downstaging to detect cervical neoplasia in a low-resource setting. A total of 6,399 women aged 30-64 years were screened with downstaging by trained nonmedical health workers. Two thresholds were used to define positive downstaging: "low threshold" when any visible abnormality on the cervix was considered positive and "high threshold" when selected abnormalities such as bleeding on touch, bleeding erosion, hypertrophied oedematous cervix, congested stippled cervix and growth or ulcer constituted the positive test. All women underwent a colposcopy examination. Biopsies were directed when colposcopy revealed abnormal lesions. True disease status was defined as histologically proven moderate dysplasia and worse lesions. Since all the participants received a diagnostic (reference) investigation (biopsy and/or colposcopy), sensitivity, specificity and predictive values were estimated directly. Low- and high-threshold downstaging were positive in 1,585 (24.8%) and 460 (7.2%) women, respectively. The sensitivities of low- and high-threshold downstaging to detect high-grade precursors and invasive cancers were 48.9% and 31.9%, respectively. The specificities were 75.8% and 93.3%, respectively. These results indicate that downstaging is not suitable as an independent primary screening modality for cervical neoplasia. 相似文献
28.
Proton magnetic resonance spectroscopy of the thalamus in patients with chronic neuropathic pain after spinal cord injury 总被引:6,自引:0,他引:6
Pattany PM Yezierski RP Widerström-Noga EG Bowen BC Martinez-Arizala A Garcia BR Quencer RM 《AJNR. American journal of neuroradiology》2002,23(6):901-905
BACKGROUND AND PURPOSE: Spinal cord injury (SCI) results in a number of consequences; one of the most difficult to manage is chronic neuropathic pain. Thus, defining the potential neural and biochemical changes associated with chronic pain after SCI is important because this may lead to development of new treatment strategies. Prior studies have looked at the thalamus, because it is a major sensory relay station. The purpose of our study was to define alterations in metabolites due to injury-induced functional changes in thalamic nuclei by using single-voxel stimulated echo acquisition mode MR spectroscopy. METHODS: Twenty-six men were recruited: 16 patients with SCI and paraplegia (seven with pain, nine without pain) and 10 healthy control subjects. Pain was evaluated in an interview, which included the collection of information concerning the location, quality, and intensity of pain, carefully identifing the dysesthetic neuropathic pain often seen in SCI. Localized single-voxel (8-cm(3) volume) proton spectra were acquired from the left and right thalami. RESULTS: The concentration of N-acetyl (NA) was negatively correlated with pain intensity (r = -0.678), and the t test showed that NA was significantly different between patients with pain and patients without pain (P =.006). Myo-inositol was positively correlated with pain intensity (r = 0.520); difference between patients with pain and those without pain was almost significant (P =.06). CONCLUSION: The observed differences in metabolites in SCI patients with and pain and in those without pain suggest anatomic, functional, and biochemical changes in the thalamic region. 相似文献
29.
Structural Requirements for Interaction with the Oligopeptide Transporter in Caco-2 Cells 总被引:2,自引:0,他引:2
Hidalgo Ismael J. Bhatnagar Pradip Lee Chao-Pin Miller Joanne Cucullino Gregory Smith Philip. L. 《Pharmaceutical research》1995,12(2):317-319
Pharmaceutical Research - 相似文献
30.
Wilfred Sewchand Pradip P Amin Robert E Drzymala Omar M Salazar Michael Salcman George M Samaras Ernesto Botero 《Journal of neuro-oncology》1984,2(3):177-185
A preclinical evaluation of the technical details and dosimetry for temporary high intensity
192Ir brain implants is presented. The canine brain was used for this quality assurance study in which direct in vivo dose measurements were done by thermoluminescent dosimetry (TLD rods). Precise and reproducible positioning of the TLD rods and 192Ir ribbons were assured by simple accessories which can be utilized in the clinical situation. The neurosurgical procedure for this non-routine interstitial implant of the brain, suitability of type and size of afterloading cannulas and facility for firmly anchoring them to the scalp, and comparison of measured doses with computer-predicted values are details assured by the canine study. Agreement between the in vivo determination and computer-generated doses was consistently in the range 2–5%. Data derived from this preclinical evaluation are currently used in both stereotactic and non-stereotactic brain implants at our institution.Details are presented for the implant procedure, dose measurements and brachytherapy planning for multiple ribbons. The latter incorporates direct interaction on computed tomography (CT) images for a hypothetical patient case. 相似文献