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排序方式: 共有2985条查询结果,搜索用时 15 毫秒
31.
Mohan Kameswaran M. C. Vasudevan R. S. Anand Kumar Jawahar Nagasundaram Kiran Natarajan S. Raghunandhan 《Indian journal of otolaryngology and head and neck surgery》2005,57(1):58-63
Multichannel auditory brainstem implants (ABI) are currently indicated for patients with neurofibromatosis type II (NF2) involving both vestibulocochlear nerves. The ABI helps bypass the damaged cochlear nerves and restores a level of auditory sensation via the electrical stimulation of the cochlear nucleus. The implant is usually placed in the lateral recess of the fourth ventricle at the time of tumor resection to stimulate the cochlear nucleus. We report a case of ABI done on a 15-year-old girl with bilateral vestibular schwannomas. 相似文献
32.
S.T.V.S. Kiran Kumar V.L. Sharma Shipra Srivastava Kalpana Bhandari Girija Shander H.K. Singh 《Medicinal chemistry research》2004,13(6-7):518-527
Several 1-(substituted phenoxy)-3-{[4-(4-trifluoromethyl) phenoxy] piperidin-1-yl} propan-2-ols (str.II) were prepared in
a six-step reaction sequence starting from methylamine and ethyl acrylate and evaluated for antidepressant activity. The compounds
were fully characterized by spectral and elemental analyses, and were tested for their effect on gross behavior, antireserpine
and anorexigenic activity. No effect was observed on gross behavior and some of them showed fluoxetine like antireserpine
and anorexigenic activity. 相似文献
33.
Navaneetha Nambigari Ramasree Dulapalli Kiran Kumar Mustyala Vasavi Malkhed Uma Vuruputuri Nagababu Penumaka Satyanarayana Sirasani 《Medicinal chemistry research》2013,22(11):5557-5565
The binding studies of Co(III) and Ru(II) polypyridyl complexes with dsDNA were carried out by molecular modeling studies to identify the binding interactions. The 3D structures of the metal complexes [Ru(phen)2ippip]2+ (RP-ippip), [Co(phen)2ippip]3+ (CP-ippip), [Ru(bpy)2ippip]2+ (RB-ippip), and [Co(bpy)2ippip]3+ (CB-ippip), where ippip = 4-(isopropylbenzaldehyde)imidazo[4,5-f][1,10] phenanthroline, phen = 1,10-phenanthroline, and bpy = bypyridine, were simulated using molecular dynamic simulations for stable conformers. The energy-minimized 3D structures of metal complexes were docked to the double-stranded dodecamer 5′-D(*AP * CP * CP * GP * AP * CP * GP * TP * CP * GP * GP * T)-3′. The aromatic ligand, ippip, facilitates the binding of the metal complex with DNA through intercalation. The effect of ancillary ligands, phen and bpy, was investigated. The ancillary ligands were found to be involved in bond formation with the phosphate backbone of nucleotide base pairs in metal complex–DNA docked complex. The significant interactions of metal complexes in the major groove of DNA are the prerequisite features of the metal complexes to be considered as DNA-intercalator. The molecular docking data are well substantiated by the available experimental data. The modeling results should extend knowledge about the nature of binding of these complexes with DNA. 相似文献
34.
A. Bhansali R. Walia P. Ravi Kumar M. Ravi Kiran G. Shanmugasundar 《Diabetic medicine》2012,29(11):1385-1389
Aim To compare American Diabetes Association and International Expert Committee recommended cut‐off values of HbA1c for detecting the presence of pre‐diabetes against plasma glucose values obtained from oral glucose tolerance tests in Asian Indians. Methods A cross‐sectional randomly sampled population survey involving 2368 adults, aged ≥ 20 years. HbA1c was measured on a Bio‐Rad 10 system in 1972 subjects. Results Of the 1972 subjects studied, 329 were detected to have pre‐diabetes based on isolated impaired fasting glucose in 125 subjects (6.3%), isolated impaired glucose tolerance in 141 subjects (7.1%) and the presence of both in 63 subjects (3.2%). The HbA1c cut‐off of 34 mmol/mol (5.7%), as recommended by the American Diabetes Association for detecting the presence of pre‐diabetes, showed sensitivity of 62%, specificity 77%, with a positive predictive value of 34.7%, a negative predictive value of 89.5% and accuracy of 67.8%; whereas the HbA1c cut‐off recommended by the International Expert Committee of 42 mmol/mol (6%) had a sensitivity of 36%, specificity of 90%, positive predictive value of 42.7%, negative predictive of 85.4% and an accuracy of 77%. However, both these HbA1c cut‐offs underdiagnosed the presence of pre‐diabetes in 38 and 64% of these subjects, respectively. Conclusions The American Diabetes Association and the International Expert Committee recommended HbA1c cut‐off values and oral glucose tolerance tests identify different pre‐diabetes cohorts. Long‐term prospective studies are required to define the usefulness of one over the other. 相似文献
35.
Rajani Battu Supriya Dabir Anjani Khanna Anupama Kiran Kumar Abhijit Sinha Roy 《Indian journal of ophthalmology》2014,62(1):60-65
Adaptive optics is a relatively new tool that is available to ophthalmologists for study of cellular level details. In addition to the axial resolution provided by the spectral-domain optical coherence tomography, adaptive optics provides an excellent lateral resolution, enabling visualization of the photoreceptors, blood vessels and details of the optic nerve head. We attempt a mini review of the current role of adaptive optics in retinal imaging. PubMed search was performed with key words Adaptive optics OR Retina OR Retinal imaging. Conference abstracts were searched from the Association for Research in Vision and Ophthalmology (ARVO) and American Academy of Ophthalmology (AAO) meetings. In total, 261 relevant publications and 389 conference abstracts were identified. 相似文献
36.
Neeraj Kumar Singh Basu Dev Banerjee Kiran Bala Mitrabasu Aldrin Anthony Dung Dung Neelam Chhillar 《Neurological sciences》2014,35(7):1075-1081
Epidemiologic findings suggest that lipids and alteration in lipid metabolizing protein/gene may contribute to the development of neurodegenerative disorders. The aim of the current study was to determine the serum lipid levels and genetic variation in two lipid metabolizing genes, low-density lipoprotein receptor-related protein-associated protein (LRPAP1) and apolipoprotein E (APOE) gene in Parkinson’s disease (PD). Based on well-defined inclusion and exclusion criteria, this study included 70 patients with PD and 100 age-matched controls. LRPAP1 and APOE gene polymorphism were analyzed by polymerase chain reaction and restriction fragment length polymorphism, respectively. Fasting serum lipid levels were determined using an autoanalyser. The logistic regression analysis showed that high levels of serum cholesterol [odds ratio (OR) = 1.101, 95 % confidence interval (CI95%) = 1.067–1.135], LRPAP1 I allelic variant alone (OR = 2.766, CI95% = 1.137–6.752) and in combination with APOE ε4 allelic variant (OR = 4.187, CI95% = 1.621–10.82) were significantly associated with increase in PD risk. Apart from that, the high levels of LDL cholesterol appears to have a protective role (OR = 0.931, CI95% = 0.897–0.966) against PD. The LRPAP1 I allelic variant may be considered a candidate gene for PD, predominantly in patients having the APOE ε4 allelic variant. 相似文献
37.
Honorio T. Benzon MD Meghan E. Rodes MD Kiran Chekka MD Khalid Malik MD William H. Pearce MD 《Pain practice》2012,12(1):66-70
Abstract: Scalene muscle injections are used to confirm the diagnosis of neurogenic thoracic outlet syndrome and predict the response of patients to surgery. We performed a retrospective study to determine if relief of pain was related to brachial plexus blockade in these patients. Methods: We reviewed the charts of 12 patients who had anterior and middle scalene muscle injections, for neurogenic thoracic outlet syndrome, between April 2009 and September 2010. The injections were performed under ultrasound guidance wherein 2 to 5 mL of 0.25% bupivacaine was injected into the belly of the anterior and scalene muscles. The following were noted: (1) sites of preprocedure pain; (2) volume injected into each of the anterior and middle scalene muscles; (3) presence of numbness after injection; and (4) presence and duration of pain relief. Results: All 12 patients had relief of their pain. Six of the twelve patients developed numbness, which ranged from blockade of the C4‐5, C6‐7, and C4‐T1 dermatomes. In the patients who developed numbness, there was no relationship between the duration of numbness and the duration of pain relief or the location of numbness and the location of pain relief. Conclusions: The relief from scalene muscle injections in patients with neurogenic thoracic outlet syndrome is not related to blockade of the brachial plexus. ? 相似文献
38.
AbstractPositive blood cultures were found in 41 patients on the Spinal Cord Injury Service at the Milwaukee VAMC during the period of July, 1980 to December, 1985 giving an incidence of bacteremia of 1.3%. Mortality rate was 17%. Most common pathogens were E. Coli, Proteus mirabilis, Serratia marcescens and Staphylococcus aureus. A review of 29 available charts revealed genitourinary and respiratory tracts as the most common sources of infection (72.4% and 10.3% respectively). Other sources of infection were skin, postoperative, intravenous catheter site and cellulitis. Initial febrile response was seen in 93.1% of patients with 48.1% having temperature greater than 38.3°C. Hypotension (blood pressure less than 90/50 mm Hg) was noted in five out of the 29 (17.1%) patients. Clinical diagnosis of disseminated intravascular coagulation was made in two out of the 29 (6.9%) patients. Underlying risk factors were poor nutrition, respirator dependency, indwelling Foley catheters and manipulative procedures. Incidence and mortality rates are similar to the non-SCI population as reported elsewhere. The risk factors are different; therefore preventive management is extremely important. 相似文献
39.
This report and images describe a case of atrial flutter with 2:1 conduction pattern in a 3 year-old male with d-TGA, ASD, and VSD status-post repair, which was demonstrated by M-mode echocardiography. 相似文献
40.
Francisco Leyva MD Abbasin Zegard MB ChB Kiran Patel PhD Jonathan Panting MB ChB Howard Marshall MD Tian Qiu PhD 《Pacing and clinical electrophysiology : PACE》2018,41(3):290-298