12 results on '"Raghuram K"'
Search Results
2. A review of the potential application of lignin in the production of bio-binder: challenges and opportunities
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R G, Yatish, Kumar, Doma Hemanth, Chinnabhandar, Raghuram K., H M, Raviraj, and Shankar, A. U. Ravi
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- 2024
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3. Validation of clinical T stage using depth of invasion in the patients with oral squamous cell carcinoma and its correlation with imaging
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Sultania, Mahesh, Jain, Priyansh, Chaudhary, Itisha, Ghalige, Hemanth, Sidhu, Simran, Mohakud, Sudipta, Sudhakar, G., Raghuram, K., Muduly, Dillip, Adhya, Amit, Barik, Sandip, Majumdar, Saroj, and Kar, Madhabananda
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- 2024
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4. Impact of natural background radiation on chromosomes in female residents of high background radiation area of Kerala.
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Aswathy C. G., Hariharan S., R., Krishna Chandran, R., Suresh Kumar, George, Preethi Sara, Jayalekshmi P., and Nair, Raghuram K.
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CHROMOSOME abnormalities ,IN situ hybridization ,BACKGROUND radiation ,RADIATION exposure ,NATURE reserves - Abstract
High levels of natural radiation areas are found in different parts of the world like Yangjiang in China, Guarapari in Brazil, Ramsar in Iran and Kerala in India. These areas are considered as appropriate places for the study regarding health risks as a result of continuous exposure to elevated level of radiation, if any, on the inhabitants there. Karunagappally, lying on the south west coast of Kerala in India is known for HBR due to natural deposit of monazite sand containing thorium (8-10%), uranium (0.3%) and its decay products. The present study analysed the chromosomes in peripheral lymphocytes from the female inhabitants of HBRAs of Karunagappally and compared their results with female inhabitants of adjacent normal background radiation areas (NBRAs). Peripheral blood samples from 110 female inhabitants of HBRA of Karunagappally and 100 samples from NBRAs were collected in heparinized vials and cultures were set up employing standard microculture techniques, slides were prepared, coded and stained with giemsa. Well spreaded metaphases were analysed for chromosome aberrations. Fluoroscence in-situ hybridization (FISH) using whole chromosome probe (WCP) 1, 2, 4 and X was performed in representative samples. The frequencies of chromosomal aberrations in HBRAs and NBRAs were 5.85±3.7 and 0.27± 0.58 per hundred cells respectively. All statistical analysis were done using SPSS version 21 to assess the Group statistics in experimentals for mean age, mean cumulative dose and chromosomal aberration frequency. FISH does not reveal any translocation among the chromosomes 1, 2, 4 and X. Background radiation had effect on the frequencies of chromosomal aberration in the inhabitants of HBRA and was found significant compared to inhabitants from NBRAs. The lack of any stable aberrations/translocations in chromosomes can be considered as one of the reasons for not having any serious ill effects or increased cancer incidence due to the radiation exposure in the area. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Camel milk-derived exosomes as novel nanocarriers for curcumin delivery in lung cancer
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Mohd Saeed, Khalid Alshagdali, Disha N. Moholkar, Raghuram Kandimalla, Mohd Adnan Kausar, and Farrukh Aqil
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Exosome ,camel milk ,Ha’il region ,lung cancer ,curcumin ,Biology (General) ,QH301-705.5 - Abstract
Cancer remains a leading cause of mortality, with non-small cell lung cancer (NSCLC) being a primary contributor to cancer-related deaths. Traditional treatment strategies such as chemotherapy, radiation, and hormone therapy often present challenges, including severe side effects, drug resistance, and toxicity. Recent advancements in nanotechnology aim to enhance the effectiveness of cancer therapies by targeting drugs selectively and specifically to tumor cells. Among these innovations, exosomes, or small extracellular vesicles (EVs), have emerged as promising carriers for drug delivery due to their natural origin and ability to encapsulate both small molecules and biologics. This study explores the use of exosomes derived from camel milk in Hail, Saudi Arabia, as a vehicle for delivering curcumin (CUR), a polyphenol with known chemopreventive properties but limited bioavailability. Camel milk was processed to isolate exosomes through differential centrifugation, followed by characterization using dynamic light scattering, zeta potential measurements, and Western blot analysis to confirm exosomal markers. The encapsulation of CUR into camel milk-derived exosomes demonstrated a 20% loading efficiency as analyzed by UPLC. In vitro antiproliferative assays revealed that the exosomal formulation of CUR (ExoCUR) significantly enhanced cytotoxicity against drug -sensitive (A549) and taxol-resistant (A549TR) lung cancer cells compared to free CUR. Molecular docking studies and molecular dynamics simulations indicated that CUR has a strong binding affinity for the epidermal growth factor receptor (EGFR), comparable to the established drug gefitinib. Furthermore, CUR effectively downregulated EGFR and STAT3 expression in cancer cells, suggesting its potential to disrupt key signaling pathways involved in tumor progression. Our findings highlight the potential of camel milk-derived exosomes as an effective and biocompatible delivery system for CUR, offering a promising strategy to overcome the limitations of current cancer therapies and enhance the therapeutic efficacy of chemopreventive agents.
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- 2024
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6. Radiologic evaluation in the diagnosis of diplopia due to unilateral accessory extraocular muscle.
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Nolan R, Boscarello T, Boparai R, and Raghuram K
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This case report details a case of a 52-year-old female with a history of diplopia and an elevation deficit in her right eye. Initially misdiagnosed as an atavistic retractor bulbi muscle in 2005 via MRI, symptoms persisted despite surgical excision. Follow-up MRI in 2023 confirmed no changes, ruling out other causes like nerve palsy or schwannoma, and ultimately guiding diagnosis towards an accessory extraocular muscle. This case underscores the importance of imaging in diagnosing rare anatomical variations that may present with symptoms similar to more common conditions. Increased awareness of accessory extraocular muscles can enhance diagnostic accuracy and patient outcomes., (© 2024 The Authors. Published by Elsevier Inc. on behalf of University of Washington.)
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- 2024
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7. Contemporary Outcomes of a National Fetal Spina Bifida Surgery Service.
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Kik CC, Kunpalin Y, Kulkarni AV, Varghese A, Abbasi N, Ryan G, Dekoninck PLJ, Church PT, Malhotra A, Raghuram K, Kelly E, and Van Mieghem T
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Objective: To assess contemporary outcomes of fetuses who underwent open fetal spina bifida surgery in Canada., Methods: Our clinical program prospectively collected outcomes of all consecutive fetuses who underwent open fetal spina bifida closure at the Ontario Fetal Center in Toronto and who were at least 1 year of age at the time of postnatal follow-up. We gathered information on the need for hydrocephalus treatment, motor function, bladder function, as well as neurodevelopment (Ages and Stages Questionnaire and Bayley's scales of infant development). Developmental outcomes were categorized as "Typical Development," "Possible Delay," or "Significantly Delayed.", Results: Between 2017 and 2022, 41 fetuses underwent open fetal spina bifida closure. Twenty-four patients (58.5%) responded to the questionnaire at a median age of 46.5 months. Eight children (33.3%) required CSF diversion procedures. Bladder management included clean intermittent catheterization (43.5%), spontaneous voiding (34.8%), or both (21.7%), with 43.5% needing medication for overactive bladder. All patients could sit independently, with 50% walking outside and 50% crawling indoors. Among those walking outdoors (50%), 25% did so without orthotics or aid, 58.3% with orthotics, and 16.7% required additional walking aids. Most children demonstrated typical communication and problem-solving skills (79.2%), while gross motor development was significantly delayed in 91.7% of cases. Fine motor skills varied, with 56.5% showing typical development and 34.8% possibly experiencing delays., Conclusions: This study showed a mixed developmental profile among patients who underwent open fetal spina bifida repair, consistent with the MOMs trial findings., (© 2024 The Author(s). Prenatal Diagnosis published by John Wiley & Sons Ltd.)
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- 2024
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8. Associations and outcomes of prenatally detected rhombencephalosynapsis.
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Kunpalin Y, Miller E, Raghuram K, Shannon P, Fisher Y, Chau V, Toi A, Chitayat D, Blaser S, and Shinar S
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- Humans, Female, Pregnancy, Adult, Rhombencephalon abnormalities, Rhombencephalon diagnostic imaging, Rhombencephalon pathology, Infant, Newborn, Prenatal Diagnosis methods, Hydrocephalus diagnostic imaging, Retrospective Studies, Cerebral Aqueduct abnormalities, Cerebral Aqueduct diagnostic imaging, Cerebral Aqueduct pathology, Male, Magnetic Resonance Imaging
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Objective: To describe the association between prenatal imaging and neurodevelopmental outcomes of fetuses with rhombencephalosynapsis (RES)., Study Design: Thirty-four pregnancies complicated by RES were identified from our institutional databases based on US and/or MRI findings. Genetic testing results were gathered. In cases of termination of pregnancy, we studied the association between prenatal imaging and neuropathologic findings. For those who opted for expectant management, comprehensive developmental assessments and postnatal MRI imaging were evaluated., Results: Over one third of fetuses in our cohort had complete RES. Common intracranial anomalies identified were mesencephalosynapsis, aqueduct stenosis and diencephalosynapsis. The degree of RES was not associated with the frequency of additional central nervous system anomalies. MRI had a good correlation with neuropathologic findings with regard to the degree of RES, aqueduct stenosis and mesencephalosynapsis. Postmortem autopsy showed that one third of our cases had VACTERL-H and almost all of those had complete RES. All liveborn neonates(n = 6) had aqueduct stenosis requiring ventriculoperitoneal shunting within days of delivery (median 5 days). While a large proportion of prenatally suspected complete RES were found to have partial RES on postnatal imaging, prenatal diagnosis of aqueduct stenosis remained unchanged. All children that were at least 2 years old (n = 3) had global developmental delay., Conclusion: Prenatal assessment of the RES severity is challenging and may be unreliable. Nevertheless, postnatal prognosis is poor for both complete and partial RES. Associated aqueductal stenosis, can be reliably assessed prenatally and this may contribute to worse postnatal prognosis than the degree of RES., (© 2024 The Author(s). Prenatal Diagnosis published by John Wiley & Sons Ltd.)
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- 2024
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9. Left ventricular apical aneurysm in Takayasu arteritis and chronic active Epstein-Barr virus infection.
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Raghuram K, Gopalakrishnan A, Nair KKM, Namboodiri N, and Valaparambil A
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Background: Takayasu arteritis (TA) is a chronic inflammatory disease of unknown etiology characterized by a large vessel vasculitis involving the aorta and its branches. Myocardial involvement is extremely unusual in TA and is mostly in the form of myocarditis, ventricular hypertrophy, and ventricular dysfunction secondary to coronary ischemia. Submitral aneurysms have been reported in TA and has been attributed to the chronic inflammatory process in TA., Case Presentation: We report a novel instance of left ventricular apical aneurysm in a 37-year-old lady with TA and normal epicardial coronaries. She was diagnosed with a left ventricular apical aneurysm, moderate aortic regurgitation, and moderate pericardial effusion. The coronary arteries were normal. The patient had concomitant chronic active Epstein-Barr virus infection complicating patient outcome., Conclusions: Left ventricular apical aneurysm with normal epicardial coronaries is a rare cause of heart failure in Takayasu arteritis. Concomitant chronic active Epstein-Barr virus infection can potentially accentuate the inflammatory process in Takayasu arteritis and complicate management and patient outcomes., (© 2024. The Author(s).)
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- 2024
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10. Anatomical and surgical considerations for Bow Hunter's syndrome in an elderly patient.
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Nolan RW, Naveen R, Rajesh R, Anderson ZN, Rangaswamy R, and Raghuram K
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Bow Hunter's syndrome (BHS) is an uncommon condition characterized by impingement of one of the two vertebral arteries induced by cervical rotation, causing symptomatic vertebrobasilar insufficiency of the posterior cerebral circulation. We report a case of BHS in an 84-year-old male. Two months following a motor vehicle accident, the patient presented to an urgent care facility with subsequent transfer to the emergency department with complaints of lightheadedness upon right-lateral head movement. A cerebral angiogram demonstrated mild focal stenosis in the dominant left vertebral artery at the C2 level when in neutral position with significant worsening of the stenosis in the right-lateral head position with absent anterograde flow, consistent with BHS. Resultantly, the patient was referred for neurosurgery and successfully underwent placement of right-sided C2-C4 postero-lateral instrumentation and left-sided C2-C3 laminar screws projected towards the right side. This case highlights the importance of imaging in BHS diagnosis and guidance for treatment, as well as the need for a surgical standard of care for BHS patients., (© 2024 The Authors. Published by Elsevier Inc. on behalf of University of Washington.)
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- 2024
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11. Association of low hemoglobin at birth and neurodevelopmental outcomes in preterm neonates ≤28 weeks' gestation: a retrospective cohort study.
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Elkhouli M, Raghuram K, Elhanafy T, Asztalos E, Banihani R, Shah PS, and Mohamed A
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- Humans, Female, Infant, Newborn, Retrospective Studies, Male, Infant, Logistic Models, Infant, Premature, Hemoglobins analysis, Gestational Age, Neurodevelopmental Disorders epidemiology, Neurodevelopmental Disorders etiology
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Objective: To compare neurodevelopmental outcomes at 18-24 months corrected age (CA) for preterm infants who had hemoglobin levels <120 g/l versus those with hemoglobin level ≥120 g/l at birth., Methods: We included infants of ≤28 weeks gestational age (GA) born between January 2009 and June 2018. The primary outcome was neurodevelopmental impairment (NDI) at 18-24 months. Multivariable logistic regression was applied to determine the association., Results: Of the 2351 eligible neonates, 351 (14.9%) had hemoglobin levels <120 g/L at birth. Of the 2113 surviving infants, 1534 (72.5%) underwent developmental follow-up at 18-24 months CA. There was no statistically significant difference in ND outcomes between the two groups. The composite outcome of death or NDI was significantly higher in the low hemoglobin group., Conclusion: In preterm infants ≤28 weeks GA, initial hemoglobin <120 g/L at birth was not associated with neurodevelopmental impairment at 18-24 months CA among survivors., (© 2024. Crown.)
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- 2024
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12. Real-world evaluation of care for type 2 diabetes in Malaysia: A cross-sectional analysis of the treatment adherence to guideline evaluation in type 2 diabetes (TARGET-T2D) study.
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Lim LL, Hussein Z, Noor NM, Raof ASA, Mustafa N, Bidin MBL, Ghani RA, Samsuddin S, Yong SL, Foo SH, Raghuram K, Suwannasri P, W B WM, Chiew TK, and Chan SP
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- Male, Humans, Adolescent, Adult, Middle Aged, Aged, Female, Cross-Sectional Studies, Glycated Hemoglobin, Cholesterol, LDL, Malaysia epidemiology, Treatment Adherence and Compliance, Diabetes Mellitus, Type 2
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Aim: Given a lack of data on diabetes care performance in Malaysia, we conducted a cross-sectional study to understand the clinical characteristics, control of cardiometabolic risk factors, and patterns of use of guideline-directed medical therapy (GDMT) among patients with type 2 diabetes (T2D), who were managed at publicly-funded hospitals between December 2021 and June 2022., Methods: Patients aged ≥18 years with T2D from eight publicly-funded hospitals in the Greater Kuala Lumpur region, who had ≥2 outpatient visits within the preceding year and irrespective of treatment regimen, were eligible. The primary outcome was ≥2 treatment target attainment (defined as either HbA1c <7.0%, blood pressure [BP] <130/80 mmHg, or low-density lipoprotein cholesterol [LDL-C] <1.8 mmol/L). The secondary outcomes were the individual treatment target, a combination of all three treatment targets, and patterns of GDMT use. To assess for potential heterogeneity of study findings, all outcomes were stratified according to prespecified baseline characteristics namely 1) history of atherosclerotic cardiovascular disease (ASCVD; yes/no) and 2) clinic type (Diabetes specialist versus General medicine)., Results: Among 5094 patients (mean±SD age 59.0±13.2 years; T2D duration 14.8±9.2 years; HbA1c 8.2±1.9% (66±21 mmol/mol); BMI 29.6±6.2 kg/m2; 45.6% men), 99% were at high/very high cardiorenal risk. Attainment of ≥2 treatment targets was at 18%, being higher in General medicine than in Diabetes specialist clinics (20.8% versus 17.5%; p = 0.039). The overall statin coverage was 90%. More patients with prior ASCVD attained LDL-C <1.4 mmol/L than those without (13.5% versus 8.4%; p<0.001). Use of sodium-glucose cotransporter-2 (SGLT2) inhibitors (13.2% versus 43.2%), glucagon-like peptide-1 receptor agonists (GLP1-RAs) (1.0% versus 6.2%), and insulin (27.7% versus 58.1%) were lower in General medicine than in Diabetes specialist clinics., Conclusions: Among high-risk patients with T2D, treatment target attainment and use of GDMT were suboptimal., Competing Interests: LLL report receiving grants through her affiliated institutions and/or honoraria for consultancy and speaker bureau from Abbott, AstraZeneca, Boehringer Ingelheim, Merck Sharp & Dohme, Novo Nordisk, Roche, Sanofi, Servier, and Zuellig Pharma. SPC report receiving the research grant through her affiliated Society (Malaysian Endocrine and Metabolic Society) and honoraria for consultancy and speaker bureau from Abbott, AstraZeneca, Boehringer Ingelheim, Novo Nordisk, Roche, Sanofi, Servier, and Zuellig Pharma. KR and PS are employee of Boehringer Ingelheim. Other co-authors declared no potential conflict of interest. There are no patents, products in development or marketed products associated with this research to declare. This does not alter our adherence to PLOS ONE policies on sharing data and materials., (Copyright: © 2024 Lim et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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