37 results on '"Saravanan M"'
Search Results
2. Emergency and Medical Management of Accidental Ingestion of Yellow Phosphorus-based Rat Bait in a Dog
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P.K. Ramkumar, Yogespriya S, K. Kannan, Saravanan M, and S. Senthilkumar
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Toxicology ,business.industry ,Accidental ingestion ,Medicine ,Yellow phosphorus ,General Medicine ,business - Published
- 2021
3. A STUDY ON GLOBAL LONGITUDINAL STRAIN IN PREDICTING PACING INDUCED LEFT VENTRICULAR DYSFUNCTION OVER TIME IN POST PERMANENT PACEMAKER PATIENTS
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Prithiviraj R, Sivakumar G S., Veeramani S R, Balasubramainan S, Selvarani G, Saravanan R R, Ramesh R., Nagasundar G., Sathish Kumar S, Hemnath T R., Saravanan M., Rajesh B., and Nisamudeen K.
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03 medical and health sciences ,medicine.medical_specialty ,0302 clinical medicine ,Longitudinal strain ,business.industry ,Internal medicine ,medicine ,Cardiology ,030212 general & internal medicine ,030204 cardiovascular system & hematology ,Permanent pacemaker ,business - Abstract
OBJECTIVE:The goal of this study is to predict the long term LV function in RV apical paced patients. BACKGROUND:We have used the GLS measured by 2D STE, as a tool to predict the patients who are at high risk of developing pacing induced LV dysfunction (PIVD) or pacing induced cardiomyopathy (PCMP). METHOD: A prospective study conducted in the cardiology department of Government Rajaji Hospital, Madurai, including 47 patients of AV block or sinus node dysfunction with preserved ejection fraction undergoing RV apical pacing. This study population was followed up with serial trans thoracic 2D echocardiography with GLS by STE for a period of 12 months for the development of PIVD (PCMP). RESULTS: Of the study population, 42.5% (n=20) developed PIVD at 12 months and these patients had a signicant fall in their GLS values at one month post pacing. (GLS -16.94% vs -17.60%; p=0.02). CONCLUSION: GLS, a novel echocardiographic parameter can be used as a tool in predicting the decline in ejection fraction following pacemaker implantation with potential to predict the development of PIVD. GLS at one month post pacing had a high predictive accuracy for identifying those who developed PIVD later in the follow up.
- Published
- 2021
4. Changing Resistance Pattern among Gram-Negative Bacilli from Cancer Patients with Respiratory Infections at a Cancer Center
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Saravanan M, Sajani Samuel, Parthiban R, and Sarath K.E
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medicine.medical_specialty ,Respiratory tract infections ,biology ,medicine.drug_class ,business.industry ,Antibiotics ,Cell Biology ,Acinetobacter ,Antimicrobial ,biology.organism_classification ,Biochemistry ,Multiple drug resistance ,Antibiotic resistance ,Amikacin ,Internal medicine ,medicine ,Gentamicin ,business ,Molecular Biology ,Biotechnology ,medicine.drug - Abstract
Cancer patients due to their immune-compromised nature are more prone to infections among which respiratory tract infections (RTIs) are frequently reported to account for 3 to 5% of deaths. In recent years, antibiotic resistance among respiratory pathogens is increasing emergently. The present study was conducted retrospectively at the microbiology division of a tertiary care hospital over 4 years (Jan 2016 – Dec 2019) aimed to find out the bacterial etiology of RTIs in cancer patients. Patients of all age groups, suspected of RTI recorded in microbiology registers were included in the study. During the study period, out of 2918 specimens (Jan 2016- Dec 2019) received in the microbiology lab, 2,065 (70%) specimens showed meaningful growth, whereas 269 (9%) specimens showed contaminated growth, 584 (20%) specimens showed no growth. From the 2,065 specimens, 1420 bacterial isolates were recovered. Out of the total 1420 isolates identified, 912 (64%) were gram-negative bacilli (GNB) and 508 (35.7%) were gram-positive organisms. About 19.6 % of patients were in the age group of fewer than 20 years, 54.4% in 21–60 years and 26% were of more than 60 years of age. The male-to-female ratio was 60.1:39.9. Trends of antimicrobial resistance among the leading pathogens causing RTI were studied in two phases, i.e., from 2016–2017 (phase I) and 2018–2019 (phase II). Phase I and II showed an increasing trend in resistance to cephalosporins and a declining trend in resistance to aminoglycosides (resistance to gentamicin was relatively high when compared with amikacin). In Phase I (2016 and 2017) resistance to Beta Lactams ranged from 66 to 97% and it is relatively high in phase II (2018 and 2019). But in contrast to other gram-negative isolates, Acinetobacter spp were more resistant to most groups of antibiotics during both Phases I (85–97%) and II (95–97%). Multidrug resistance (resistance to three or more than three drugs) was observed in most of the total isolates during the study period. The increasing trend of resistance in gram-negative organisms is alarming. Judicious use of older and newer antimicrobial agents is essential to prevent the emergence of multidrug-resistant bacteria. The development of newer therapeutic alternatives to address the problem of MDR GNBs is needed.
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- 2021
5. Comparison of oocyte maturity rates in recombinant Human Chorionic Gonadotropin (HCG) and triptorelin acetate triggers: A prospective randomized study
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Lakshmanan S, Nidhi Sharma, Saravanan M, and Senthil P
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Andrology ,endocrine system ,medicine.anatomical_structure ,business.industry ,Recombinant Human Chorionic Gonadotropin ,Medicine ,Triptorelin Acetate ,Prospective randomized study ,General Medicine ,business ,Oocyte ,Maturity (finance) ,hormones, hormone substitutes, and hormone antagonists - Abstract
Luteinizing Hormone (LH) like exposure in the mid cycle for inducing the oocyte maturation is the very crucial step in the success of ICSI treatment. Introduction of LH surge endogenously by GnRH-agonist for final oocyte maturation induction, may be more physiological compared with the administration of HCG. Since GnRH agonist would induce FSH surge also along with LH surge, as happens in natural cycle. However, the effects of giving HCG trigger for inducing only LH surge and giving GnRH agonist trigger for inducing both LH and FSH surge, in patients treated for ICSI with GnRH antagonists need more research. Sub fertile patients planned for ICSI, meeting the requirement of inclusion criteria, were started with recombinant FSH from day 2 of menstrual cycle. GnRH antagonists were started from day 6 of stimulation. FSH dose was adjusted according to the individual response. Trigger was planned when the lead follicle reaches 24 mm. For triggering, 100 patients were randomized to receive Recombinant HCG trigger and Triptorelin acetate trigger. Oocyte retrieval was done 36 hours after Recombinant hCG Trigger and 35 hours after Triptorelin acetate trigger. The oocyte maturity rate was assessed by the number of metaphase II oocytes retrieved.
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- 2020
6. Study on the in vitro antioxidant properties of selected traditional medicinal plants
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Anushri I, Gowthama Prabu U, Saravanan M, R. Baskar, and Kishor Kumar B
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chemistry.chemical_classification ,Reactive oxygen species ,Psidium ,Antioxidant ,Traditional medicine ,biology ,Chemistry ,medicine.medical_treatment ,Ficus benghalensis ,biology.organism_classification ,medicine.disease_cause ,Phytochemical ,Syzygium ,medicine ,Medicinal plants ,Oxidative stress - Abstract
Oxidative stress is the phenomenon by which the excessive production of free radicals and oxidants that cause detrimental effects to diseases and finally death. Plants are the rich source of antioxidants which have the potential to neutralize these reactive oxygen species,thereby preserving the redox equilibrium of the body. Western Ghats serves as anexcellent habitat for many endangered species of flora and a reservoir of edible source of food for many living beings. Some of the commonly available traditional plants like Ficus benghalensis, Psidium guajava, Beta vulgaris, Syzygium cumini were known to possess rich pharmacological properties. In the present study, we aim to evaluate and compare the in vitro antioxidant properties of the selected traditional medicinal plants using various radical scavenging and reducing capacity assays. Further, the structural elucidation of the presence of phytochemical compounds in the extract was carried out using Infrared (IR) spectra. The above investigation on the free radical scavenging properties and the determination of the functional groups of bioactive compounds may open up new interest on their applications in food, pharmaceutical and cosmetic industries.
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- 2020
7. Trophectoderm morphology is a better predictor of clinical pregnancy in blastocyst transfers
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Nidhi Sharma, Lakshmanan S, Saravanan M, Dhanusu R R, and Sivanantham S
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Pregnancy ,business.industry ,Embryo ,Retrospective cohort study ,medicine.disease ,Andrology ,medicine.anatomical_structure ,embryonic structures ,Biomarker (medicine) ,Inner cell mass ,Medicine ,Blastocyst ,General Pharmacology, Toxicology and Pharmaceutics ,business ,Live birth ,Selection (genetic algorithm) - Abstract
In assisted reproduction, a successful outcome is closely associated with the selection of potentially implantable. culture has its own merits that it can possibly eliminate the selection of non-viable embryos, can mimic physiology with better embryo-uterine and the extended culture can also assess the embryos post-embryonic activation. Scoring of characteristics can also aid in single embryo transfers (SET), reducing the risks of multiple pregnancies. The morphological assessment can serve as a non-invasive tool for better prediction of the outcome in IVF. The two important morphological parameters of grading the inner cell mass (ICM) and the (TE) other than the expansion of the cavity. Various groups reported the importance of either characteristic predicting implantation, pregnancy and live birth. In this retrospective study, we have evaluated which one of these parameters possess the predictive ability of implantation and pregnancy. The embryos frozen as following morphological scoring in the stimulated cycles were replaced in subsequent cycles. The transferred with known implantation were grouped into four different combinations of grades of ICM and TE and analyzed for the association with the clinical pregnancy and the findings were statistically validated. This study demonstrates there is a significant correlation between the grades of TE cells and the clinical pregnancy, so TE grade possibly is a better predictor of in transfers. The grades of embryo can be used as a selection tool for a better IVF outcome.
- Published
- 2020
8. Comparison of Clinical Pregnancy from Humidified and Dry Incubation of Embryos in a Tropical Region
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Dhanusu R R, Nidhi Sharma, Lakshmanan S, Sivanantham S, and Saravanan M
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Pregnancy ,030219 obstetrics & reproductive medicine ,Incubator ,Embryo culture ,Biology ,medicine.disease ,Embryo transfer ,Miscarriage ,Andrology ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Tropical climate ,medicine ,Blastocyst ,General Pharmacology, Toxicology and Pharmaceutics ,Incubation - Abstract
The laboratory induced cellular stress on zygotes and embryos in their microenvironment could negatively influence the clinical outcome. One of the core components of an IVF lab is the culture incubator. Incubators can provide a stable and appropriate-culture environment by regulating optimal conditions on parameters such as temperature, gas levels and humidity. Clinical studies which compare incubator characteristics may provide insight to their efficacy. In humid conditions of the tropical climate, the incubators without humidifiers can also be used. Hence this study was done to identify the role of a humidifier in a tropical country. In this multicentre retrospective study, embryos from a total of 787 patients were cultured as two groups -A and B in two different types of incubators- humidified and dry, respectively. 647 patients in group A and 140 patients in group B were examined for the developmental parameters. The embryos were frozen at the blastocyst stage and replaced in subsequent frozen embryo transfer cycles. The resulted pregnancy, miscarriage and the clinical pregnancy outcomes were compared. The data was subjected to statistical validation. There was no significant difference observed in the clinical pregnancy rates between the groups. This study validates the possible use of dry incubators for the in vitro culture of human embryos in tropical climate without aiding any humidification.
- Published
- 2020
9. In silico approaches for the identification of potential allergens among hypothetical proteins from Alternaria alternata and its functional annotation
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Rajamanikandan Sundararaj, Amala Mathimaran, Dhamodharan Prabhu, Balajee Ramachandran, Jeyakanthan Jeyaraman, Saravanan Muthupandian, and Tsehaye Asmelash
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Alternaria alternata ,AlgPred ,SDAP ,Structure–function relationship and drug discovery ,Medicine ,Science - Abstract
Abstract Direct exposure to the fungal species Alternaria alternata is a major risk factor for the development of asthma, allergic rhinitis, and inflammation. As of November 23rd 2020, the NCBI protein database showed 11,227 proteins from A. alternata genome as hypothetical proteins (HPs). Allergens are the main causative of several life-threatening diseases, especially in fungal infections. Therefore, the main aim of the study is to identify the potentially allergenic inducible proteins from the HPs in A. alternata and their associated functional assignment for the complete understanding of the complex biological systems at the molecular level. AlgPred and Structural Database of Allergenic Proteins (SDAP) were used for the prediction of potential allergens from the HPs of A. alternata. While analyzing the proteome data, 29 potential allergens were predicted by AlgPred and further screening in SDAP confirmed the allergic response of 10 proteins. Extensive bioinformatics tools including protein family classification, sequence-function relationship, protein motif discovery, pathway interactions, and intrinsic features from the amino acid sequence were used to successfully predict the probable functions of the 10 HPs. The functions of the HPs are characterized as chitin-binding, ribosomal protein P1, thaumatin, glycosyl hydrolase, and NOB1 proteins. The subcellular localization and signal peptide prediction of these 10 proteins has further provided additional information on localization and function. The allergens prediction and functional annotation of the 10 proteins may facilitate a better understanding of the allergenic mechanism of A. alternata in asthma and other diseases. The functional domain level insights and predicted structural features of the allergenic proteins help to understand the pathogenesis and host immune tolerance. The outcomes of the study would aid in the development of specific drugs to combat A. alternata infections.
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- 2024
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10. Coronary angiographic profi le in patients with failed thrombolysis
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Vinodkumar Balakrishnan, T.R. Muralidharan, and Saravanan M
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medicine.medical_specialty ,business.industry ,Internal medicine ,medicine.medical_treatment ,medicine ,Cardiology ,Standard protocol ,In patient ,Myocardial infarction ,Thrombolysis ,medicine.disease ,business - Abstract
Background: Acute Myocardial Infarction (MI) is a life threatening condition responsible for over 85% of the deaths all over the world. The management of MI has to be done on an emergency footing, without losing any time. The standard protocol involves thrombolysis in these patients. However, not all the thrombolysis procedures turn out to be successful. This study was done to explore the prevalence and risk factors associated with the success of thrombolysis.
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- 2019
11. Analysis of breast cancer event logs using various regression techniques
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Saravanan. M. S, K. Venkata Subbaiah, and Pradnya Patil
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Oncology ,medicine.medical_specialty ,Computer science ,Complex type ,medicine.disease ,Logistic regression ,Regression ,Chronic disorders ,Data set ,Breast cancer ,Internal medicine ,medicine ,Research article ,skin and connective tissue diseases ,Event (probability theory) - Abstract
The breast cancer is a chronic disorder that causes serious illness to the patients despite their age groups. Breast cancer has more number of research to identify the root causes. But in recent research finding also concentrated more on factors affecting the breast cancer with different type of event logs, such as healthcare centers generated data and trail data taken from various webpages. The machine learning techniques are mostly applied on complex type of event logs such as cancer data set, brain tumor dataset and heart related diseases. Among various diseases breast cancer is the one has more complex event logs, which is very complex to analyze and to find the root causes. This research article discuss about the breast cancer data set using logistic regression technique applied with python programming language. This paper also deals about the root causes about the breast cancer and related issues.
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- 2021
12. Mucohaemorrhagic Enteritis Caused by Mixed Parasitic Infection in a Large White Yorkshire Pig
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K. Jayalakshmi, P. K. Ramkumar, Yogespriya S, Rani N, K. Kannan, S. Senthilkumar, M. Venkatesan, Saravanan M, and Selvaraj P
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Veterinary medicine ,General Veterinary ,medicine ,Yorkshire pig ,Animal Science and Zoology ,Large white ,Biology ,medicine.disease ,Parasitic infection ,Enteritis - Published
- 2020
13. Relative contribution of biomedical, demographic, and socioeconomic factors to COVID-19 vaccine receipt in rural India.
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Bethany F Ferris, Suganthi Balasubramanian, Anuradha Rajamanickam, Saravanan Munisankar, Bindu Dasan, Pradeep A Menon, P'ng Loke, Subash Babu, and Goylette F Chami
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Medicine ,Science - Abstract
BackgroundIn the first year of roll-out, vaccination for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) prevented almost 20 million deaths from coronavirus disease 2019 (COVID-19). Yet, little is known about the factors influencing access to vaccination at the individual level within rural poor settings of low-income countries. The aim of this study was to examine determinants of vaccine receipt in rural India.MethodsA census of a rural village in Tamil Nadu was undertaken from June 2021 to September 2022. We surveyed 775 participants from 262 households. Household-level data on socioeconomic status (SES), water, sanitation, and hygiene practices, and individual-level demographic information, travel history, and biomedical data, including anthropometry, vital signs, and comorbidities, were collected. Logistic regression models with 5-fold cross-validation were used to identify the biomedical, demographic, and socioeconomic determinants of vaccine receipt and the timing of receipt within the first 30 days of eligibility. Vaccine ineligible participants were excluded leaving 659 eligible participants. There were 650 eligible participants with complete biomedical, demographic, and socioeconomic data.ResultsThere were 68.0% and 34.0% of individuals (N = 650) who had received one and two vaccine doses, respectively. Participants with household ownership of a permanent account number (PAN) or ration card were 2.15 (95% CI:1.32-3.52) or 3.02 (95% CI:1.72-5.29) times more likely to receive at least one vaccine dose compared to households with no ownership of such cards. Participants employed as housewives or self-employed non-agricultural workers were 65% (95% CI:0.19-0.67) or 59% (95% CI:0.22-0.76) less likely to receive at least one vaccine dose compared to salaried workers. Household PAN card ownership, occupation and age were linked to the timing of vaccine receipt. Participants aged ≤18 and 45-60 years were 17.74 (95% CI:5.07-62.03) and 5.51 (95% CI:2.74-11.10) times more likely to receive a vaccine within 30 days of eligibility compared to 19-44-year-olds. Biomedical factors including BMI, vital signs, comorbidities, and COVID-19 specific symptoms were not consistently associated with vaccine receipt or timing of receipt. No support was found that travel history, contact with COVID-19 cases, and hospital admissions influenced vaccine receipt or timing of receipt.ConclusionFactors linked to SES were linked to vaccine receipt, more so than biomedical factors which were targeted by vaccine policies. Future research should explore if government interventions including vaccine mandates, barriers to vaccine access, or peer influence linked to workplace or targeted vaccine promotion campaigns underpin these findings.
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- 2024
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14. P2P Lending platforms in Malaysia: the awareness among Malaysian adults [version 3; peer review: 2 approved]
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Lan Thi Phuong Nguyen, Wisdom Kalabeke, Saravanan Muthaiyah, and Malick Ousmane Sy
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P2P lending platforms ,financial literacy ,Malaysian young adults ,awareness ,FinTech ,investors ,eng ,Medicine ,Science - Abstract
Background: Since 2016, the Securities Commission (SC) in Malaysia has given licenses to only eleven P2P lending platforms. Such lending platforms are expected to disrupt the lending services of traditional lenders in the coming years. However, being still in their infant stages, it is essential to know the extent to which such platforms are made known to potential investors out there. This study aims to examine the awareness level of the eleven P2P lending platforms among Malaysian adults. The study also explores if past investment experience and financial knowledge would influence such awareness from Malaysian adults. Methods: A sample of 335 Malaysian individuals was used for this study. An online questionnaire was designed with three main parts: demographic, financial literacy, and P2P lending awareness. Using IBM SPSS Statistics 26, frequency, descriptive, normality, Pearson coefficients and multiple regression analyses were carried out. Results: Although seven out of ten respondents have good knowledge in three areas of finance: compounding rate, inflation and diversification, only 14.33% had a good and excellent awareness level of P2P lending. Thus, one would expect lesser awareness about P2P lending among Malaysian adults whose financial literacy is poor or zero. Test results from multiple regression analysis suggest that past lending experiences positively affect the awareness of P2P lending in Malaysia, but not the financial literacy. Conclusions: The awareness about P2P lending among Malaysian adults is too low, despite their high level of education and financial literacy. No investing experience and not knowing any existing P2P lending in the country may be the reason for this low awareness. Therefore, for P2P lending to thrive in Malaysia, the eleven P2P lending platforms need to be promoted aggressively in various social media outlets.
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- 2023
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15. THE EFFICACY OF CELLULAR ADHESIVE (HISTOACRYL) IN THE MANAGEMENT OF LACERATED WOUNDS IN CHILDREN ATTENDING AN OUT-PATIENT SETTING, AN OBSERVATIONAL STUDY
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Indhumathi Indhumathi, Kokilam Kokilam, Jeya Balaji R, and Saravanan M
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medicine.medical_specialty ,integumentary system ,Cross-sectional study ,business.industry ,law.invention ,Surgery ,Randomized controlled trial ,Adhesive glue ,law ,Lacerated Wounds ,Medicine ,Observational study ,Complication ,business ,Wound healing ,Pediatric population - Abstract
Apart from traditional Traditionally suturing for wound closure, other options for wound closure like staples, adhesive tapes and tissue adhesives came into existence and are gaining popularity in clinical practice in recent times. There is an increasing amount of literature supporting the use of TAs for various minor lacerations, including a number of randomized controlled trials (RCTs). Even though TAs are ideal choice for resource poor settings like India, studies documenting the efficacy of tissue adhesives, especially in pediatric population are rare from India. AIMS & OBJECTIVE: To study the efficacy of wound healing, occurrence of complications and cost of treatment following cellular Adhesive (Histoacryl) use in children with laceration wounds. METHODOLOGY: The study was a cross sectional study, conducted in outpatient setting of department of pediatrics , in a tertiary care teaching hospital, between June 2011 to December 2012. RESULTS: A total of 62 children were included in the study. Clean wounds constituted 93.5% of the wounds. Average amount of glue required was 3 to 4 drops. Majority wounds (91.9%) started healing well by the third day of follow-up and they healed well after 7 days. The final outcome was good in 88.7% of the subjects and fair in 3.2% of the subjects. Only 11.3% of participants had some complication. The quantity of tissue adhesive glue used per cm of wound surface was 1.77 drops and the expenditure incurred per cm of wound surface was 44.5 INR. CONCLUSIONS: Tissue adhesive glue is effective method of wound closure in pediatric laceration wounds. The complication rates and the need for antibiotic is very minimal with tissue adhesive glue use and it is very economical way of wound closure in pediatric laceration wounds.
- Published
- 2014
16. INFLAMMATORY MARKERS IN PULMONARY TB: A SEVERITY AND PROGNOSTIC INDICATOR
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Saravanan M, Rajarajeswari Rajarajeswari, Gowri Shankar, and Allwyn Vijay
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,business.industry ,Internal medicine ,Medicine ,Cardiology and Cardiovascular Medicine ,Critical Care and Intensive Care Medicine ,business ,Pulmonary tb - Published
- 2019
17. Effect of single bout of passive stretching and Mulligan's Bent Leg Raise (BLR) on Hamstring flexibility in young adults with asymptomatic bilateral Hamstring tightness
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Oves Patni, Ruchi Patel, Saravanan M, Ankita Juneja, Nazrana Shaikh, and Aliya Shaikh
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medicine.medical_specialty ,Flexibility (anatomy) ,Proprioception ,business.industry ,Passive stretching ,Group comparison ,Asymptomatic ,Leg raise ,Physical medicine and rehabilitation ,medicine.anatomical_structure ,Sit and reach test ,medicine ,Physical therapy ,medicine.symptom ,business ,Hamstring - Abstract
Objectives: Various stretching techniques have been used to improve muscle flexibility in rehabilitation and sports. Mechanisms involving the efficacy of a stretching technique were studied and certain conclusions indicate one technique better than the other. Passive stretching is one most commonly used method and the recent inclusion of other techniques like ballistic stretching, Proprioceptive Neuromuscular Facilitation (PNF) techaniques with its variants and Mulligan's Bent Leg Raise (BLR) have created more scope for researchers to compare and conclude better methods for improving flexibility. The aim of the present study was to measure hamstrings flexibility after a single bout of passive hamstring muscle stretching and BLR and comparing the effects between the two techniques. Methods: 78 asymptomatic individuals with bilateral hamstring tightness were randomized to one of the two groups - passive stretching (n=39) and BLR (n=39). Hamstring flexibility was measured using Back Saver Sit and Reach Test before and after the tests for both right and left lower limbs. Results and Conclusion: Analysis using dependent revealed that both passive stretching and BLR groups improved hamstring flexibility on both sides with improvements of 3.7cm and 4cm on right and left side respectively in BLR group and 1.3cm and 2cm on right and left side respectively in passive stretching group. However results of between group comparisons using independent t tests were not significant (p=.992 and .729 respectively for right and left sides) which suggests that passive stretching is equally effective as BLR technique in improving hamstrings length.
- Published
- 2013
18. P2P lending platforms in Malaysia: What do we know? [version 3; peer review: 1 approved, 2 approved with reservations]
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Lan Thi Phuong Nguyen, Wisdom Kalabeke, Saravanan Muthaiyah, Ming Yu Cheng, Kwan Jing Hui, and Hazik Mohamed
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P2P lending platforms ,default risk ,SMEs ,individual investors ,credit rating ,FinTech platforms ,eng ,Medicine ,Science - Abstract
Background - With the recent evolution of Financial Technology (FinTech), 11 peers to peer (P2P) lending platforms have been regulated by the Securities Commission in Malaysia since 2016. P2P lending platforms offer new investment opportunities to individual investors to earn higher rates on return than what traditional lenders usually provide. However, individual investors may face higher potential risks of default from their borrowers. Therefore, individual investors need to understand the potential exposure to such P2P lending platforms to make an effective investment decision. This study aims to explore the potential risk exposures that individual investors may experience at Malaysia's licensed P2P lending platforms. Methods - Based on data collected manually from nine P2P lending platforms over five months, relationships between interest rates and various risk classifying factors such as credit rating, industry, business stage, loan purpose, and loan duration are examined. Results- This study shows that loans with a similar credit rating and with or without similar loan purpose; and a business stage may offer investors significantly different interest rates. In addition, loans with shorter durations may provide investors with higher interest rates than those with longer durations. Finally, loans issued by companies from the same industry appeared to be charged with similar interest. These findings are valuable to investors to prepare themselves before making their investments at the P2P lending platforms. Conclusion- With first hand-collected data, this study provides an original insight into Malaysia's current P2P lending platforms. Findings obtained for relationships between interest rates and risk classifying factors such as credit rating, industry, business stage, loan purpose and loan duration are valuable to investors of Malaysian P2P lending platforms.
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- 2023
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19. Automotive Vehicle Engine Mounting Systems: A Survey
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Nagi G. Naganathan, Rao V. Dukkipati, Yunhe Yu, and Saravanan M. Peelamedu
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Engineering ,Control and Systems Engineering ,business.industry ,Mechanical Engineering ,medicine ,Automotive industry ,Stiffness ,medicine.symptom ,business ,Instrumentation ,Automotive engineering ,Computer Science Applications ,Information Systems - Abstract
This study divided into three portions to provide performance requirements; overview and development of various engine mounts; and the optimization of engine mount systems. The first part provides an insight about the ideal engine mount system that should isolate vibration caused by engine disturbance force in various speed range and prevent engine bounce from shock excitation. This implies that the dynamic stiffness and damping of the engine mount should be frequency and amplitude dependent. Therefore, the development of engine mounting systems has mostly concentrated on improvement of frequency and amplitude dependent properties. The second part starts discussion on the conventional elastomeric mounts that offer a trade-off between static deflection and vibration isolation. The next level, passive hydraulic mounts can provide a better performance than elastomeric mounts especially in the low frequency range. Subsequently, semi-active and active techniques are used to improve performance of hydraulic mounts by making them more tunable. The active engine mounting system can be very stiff at low frequency and be tuned to be very soft at the higher frequency range to isolate the vibration. The final part is about the optimization of engine mounting systems. An overview of the current work on this optimization shows some limitations. Further study is needed to consider the nonlinearities and variations in properties of different types of mounting systems.
- Published
- 1999
20. Dynamic alterations in monocyte numbers, subset frequencies and activation markers in acute and convalescent COVID-19 individuals
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Anuradha Rajamanickam, Nathella Pavan Kumar, Arul Nancy Pandiarajan, Nandhini Selvaraj, Saravanan Munisankar, Rachel Mariam Renji, Vijayalakshmi Venkatramani, Manoj Murhekar, Jeromie W. V. Thangaraj, Muthusamy Santhosh Kumar, C. P. Girish Kumar, Tarun Bhatnagar, Manickam Ponnaiah, R. Sabarinathan, V. Saravanakumar, and Subash Babu
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Medicine ,Science - Abstract
Abstract Monocytes are thought to play an important role in host defence and pathogenesis of COVID-19. However, a comprehensive examination of monocyte numbers and function has not been performed longitudinally in acute and convalescent COVID-19. We examined the absolute counts of monocytes, the frequency of monocyte subsets, the plasma levels of monocyte activation markers using flowcytometry and ELISA in seven groups of COVID-19 individuals, classified based on days since RT-PCR confirmation of SARS-CoV2 infection. Our data shows that the absolute counts of total monocytes and the frequencies of intermediate and non-classical monocytes increases from Days 15–30 to Days 61–90 and plateau thereafter. In contrast, the frequency of classical monocytes decreases from Days 15–30 till Days 121–150. The plasma levels of sCD14, CRP, sCD163 and sTissue Factor (sTF)—all decrease from Days 15–30 till Days 151–180. COVID-19 patients with severe disease exhibit higher levels of monocyte counts and higher frequencies of classical monocytes and lower frequencies of intermediate and non-classical monocytes and elevated plasma levels of sCD14, CRP, sCD163 and sTF in comparison with mild disease. Thus, our study provides evidence of dynamic alterations in monocyte counts, subset frequencies and activation status in acute and convalescent COVID-19 individuals.
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- 2021
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21. Effect of Lung Specific Yoga Mudras on Pulmonary Function Tests in subjects with FEV1% predicted values less than 80%
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Selvakumar Palaniappan, Ramprassath Siddhan, Anu Sengottaiyan, Saravanan Mohanraj, and Rohit Paul
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forced vital capacity ,lung ,pulmonary function tests ,yoga ,Medicine ,Dentistry ,RK1-715 - Abstract
Background and aim: Mudras are gesticulations of explicit body position. For the most part, Mudras help in correspondence like gesturing head to say indeed, raising thumb to pass on progress. They likewise utilized in yoga, reflection, and dance.Materials and Methods: The probable, similar examination was done in the division of Anesthesia of a private Medical College Hospital, Madurai subsequent to getting Institutional Ethical Clearance.100 individuals in the age gathering of 20-30 years going to General Medicine OP among June and September 2019 and clinic staff who undertook in were enlisted for the investigation. Both weight and stature coordinated with males and females with odd spirometry esteem with FEV1% anticipated qualities under 80% were comprised for the investigation.Results: Pulmonary function tests (PFT) values in control group subjects were statistical, not Significant. On the other hand, significant enhancement in all the limits was seen apart from FEV1/FVC% in the study group. Even Though it is statistically significant, the value had enhanced after mudra practice from 78.57±14.28 to 81.12±9.85.Conclusion: The outcomes demonstrate that explicit lung mudras essentially improve lung work. The day-by-day schedule can profit populaces experiencing prohibitive and obstructive lung conditions. Particularly this could be valuable for post Coronavirus patients with remaining lung discrepancies.
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- 2021
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22. P2P Lending platforms in Malaysia: the awareness among Malaysian adults [version 2; peer review: 2 approved]
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Lan Thi Phuong Nguyen, Wisdom Kalabeke, Saravanan Muthaiyah, and Malick Ousmane Sy
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P2P lending platforms ,financial literacy ,Malaysian young adults ,awareness ,FinTech ,investors ,eng ,Medicine ,Science - Abstract
Background - Since 2016, the Securities Commission (SC) in Malaysia has given licenses to only eleven P2P lending platforms. Such lending platforms are expected to disrupt the lending services of traditional lenders in the coming years. However, being still in their infant stages, it is essential to know the extent to which such platforms are made known to potential investors out there. This study aims to examine the awareness level of the eleven P2P lending platforms among Malaysian adults. The study also explores if past investment experience and financial knowledge would influence such awareness from Malaysian adults. Methods - A sample of 335 Malaysian individuals was used for this study. An online questionnaire was designed with three main parts: demographic, financial literacy, and P2P lending awareness. Using IBM SPSS Statistics 26, frequency, descriptive, normality, Pearson coefficients and multiple regression analyses were carried out. Results - Although seven out of ten respondents have good knowledge in three areas of finance: compounding rate, inflation and diversification, only 14.33% had a good and excellent awareness level of P2P lending. Thus, one would expect lesser awareness about P2P lending among Malaysian adults whose financial literacy is poor or zero. Test results from multiple regression analysis suggest that past lending experiences positively affect the awareness of P2P lending in Malaysia, but not the financial literacy. Conclusions - the awareness about P2P lending among Malaysian adults is too low, despite their high level of education and financial literacy. No investing experience and not knowing any existing P2P lending in the country may be the reason for this low awareness. Therefore, for P2P lending to thrive in Malaysia, the eleven P2P lending platforms need to be promoted aggressively in various social media outlets.
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- 2022
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23. P2P lending platforms in Malaysia: What do we know? [version 2; peer review: 1 approved, 2 approved with reservations]
- Author
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Lan Thi Phuong Nguyen, Wisdom Kalabeke, Saravanan Muthaiyah, Ming Yu Cheng, Kwan Jing Hui, and Hazik Mohamed
- Subjects
P2P lending platforms ,default risk ,SMEs ,individual investors ,credit rating ,FinTech platforms ,eng ,Medicine ,Science - Abstract
Background - With the recent evolution of Financial Technology (FinTech), 11 peers to peer (P2P) lending platforms have been regulated by the Securities Commission in Malaysia since 2016. P2P lending platforms offer new investment opportunities to individual investors to earn higher rates on return than what traditional lenders usually provide. However, individual investors may face higher potential risks of default from their borrowers. Therefore, individual investors need to understand the potential exposure to such P2P lending platforms to make an effective investment decision. This study aims to explore the potential risk exposures that individual investors may experience at Malaysia's licensed P2P lending platforms. Methods - Based on data collected manually from nine P2P lending platforms over five months, relationships between interest rates and various risk classifying factors such as credit rating, industry, business stage, loan purpose, and loan duration are examined. Results- This study shows that loans with a similar credit rating and with or without similar loan purpose; and a business stage may offer investors significantly different interest rates. In addition, loans with shorter durations may provide investors with higher interest rates than those with longer durations. Finally, loans issued by companies from the same industry appeared to be charged with similar interest. These findings are valuable to investors to prepare themselves before making their investments at the P2P lending platforms. Conclusion- With first hand-collected data, this study provides an original insight into Malaysia's current P2P lending platforms. Findings obtained for relationships between interest rates and risk classifying factors such as credit rating, industry, business stage, loan purpose and loan duration are valuable to investors of Malaysian P2P lending platforms.
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- 2022
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24. Prevalence of bacterial vaginosis and aerobic vaginitis and their associated risk factors among pregnant women from northern Ethiopia: A cross-sectional study.
- Author
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Gebrehiwet Tesfay Yalew, Saravanan Muthupandian, Kiflom Hagos, Letemichael Negash, Gopinath Venkatraman, Yemane Mengsteab Hagos, Hadush Negash Meles, Hagos Haileslasie Weldehaweriat, Hussein O M Al-Dahmoshi, and Morteza Saki
- Subjects
Medicine ,Science - Abstract
This study aimed to determine the prevalence of bacterial vaginosis (BV) and aerobic vaginitis (AV) and their associated risk factors among pregnant women from Ethiopia. Also, this study investigated the bacterial pathogens and their antibiotic resistance in AV cases. A total of 422 pregnant women from northern Ethiopia were participated in this study. Socio-demographic and clinical data were recorded. Vaginal swabs were collected and used for wet mount and Gram stain methods to evaluate the AV and BV scores according to the Nugent's and Donder's criteria, respectively. In AV cases the bacterial pathogens and their antibiotic resistance were determined using standard methods. The possible risk factors for AV and BV in pregnant women were investigated. The prevalence rates of BV and AV were 20.1% (85/422) and 8.1% (34/422), respectively. BV was more common in symptomatic vs. asymptomatic people (P < 0.001), and in second trimester vs. first trimester samples (P = 0.042). However, AV was more common in secondary school vs. primary and those who were unable to read and write (P = 0.021) and in housewife women vs. employee (P = 0.013). A total of 44 bacterial strains were isolated from AV cases, of which the coagulase-negative staphylococci (CoNS) (38.6%) and Staphylococcus aureus (29.5%) were the most predominant bacteria, respectively. The highest resistance rate was observed against penicillin (100.0%) in staphylococci, while 86.7% of them were sensitive to ciprofloxacin. The resistance rate of Enterobacteriaceae ranged from 0.0% for ciprofloxacin and chloramphenicol to 100.0% against amoxicillin/clavulanate. The prevalence of BV was higher than AV in pregnant women. This higher prevalence of BV suggests that measures should be taken to reduce the undesired consequences related to BV in the pregnancy. The circulation of drug-resistant bacteria in vaginal infections requires a global surveillance to reduce the risks to pregnant mothers and infants.
- Published
- 2022
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25. Orchestration of autonomous trusted third-party banking [version 1; peer review: 2 approved]
- Author
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Saravanan Muthaiyah, Kalaiarasi Sonai Muthu Anbananthen, and Nguyen Thi Phuong Lan
- Subjects
Medicine ,Science - Abstract
Background Digital transformation is changing the structure and landscape of future banking needs with much emphasis on value creation. Autonomous banking solutions must incorporate on-the-fly processing for risky transactions to create this value. In an autonomous environment, access control with role and trust delegation has been said to be highly relevant. The aim of this research is to provide an end to end working solution that will enable autonomous transaction and task processing for banking. Method We illustrate the use case for task delegation with the aid of risk graphs, risk bands and finite state machines. This paper also highlights a step by step task delegation process using a risk ordering relation methodology that can be embedded into smart contracts. Results Task delegation with risk ordering relation is illustrated with six process owners that share immutable ledgers. Task delegation properties using Multi Agent Systems (MAS) is used to eliminate barriers for autonomous transaction processing. Secondly, the application of risk graph and risk ordering relation with reference to delegation of tasks is a novel approach that is nonexistent in RBAC. Conclusion The novelty of this study is the logic for task delegation and task policies for autonomous execution on autonomous banking platforms akin to the idea of federated ID (Liberty Alliance).
- Published
- 2021
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26. Bridging skill gaps and creating future ready accounting and finance graduates: an exploratory study [version 1; peer review: 2 approved]
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Saravanan Muthaiyah, Karen Phang, and Sanjaya Sembakutti
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Digital transformation ,Pedagogy ,FinTech ,Teaching and Learning. ,eng ,Medicine ,Science - Abstract
Background: Changing trends in the use of technology have become an impelling force to be reckoned with for the accounting and finance profession. The curriculum offered in higher learning institutions must be quickly revamped so that students who complete a bachelor’s degree are digitally competent upon graduation. With US$55.3 billion invested in FinTech in 2019 alone and more than 72% of accounting jobs being automated, graduates must be trained on digital skills to be future proof. Accounting and finance graduates must be made competent in skills that are related to digital content such as blockchain technology, information assets and autonomous peer to peer systems, to name a few. Methods: We used a three-phase approach: 1) careful mapping of digital topics taught within the course structure offered at these institutions; 2) review of current best practices and digital learning tools for digital inclusion which was ascertained from literature; and 3) 80 experts in a think tank group were interviewed on antecedents, awareness and problems in relation to digital inclusion within the curriculum to validate our research objective. Results: Eleven key tools for inclusion in the curriculum were discussed with experts and then mapped to current curriculum offered at institutions. We discovered that less than 5% of these were being taught. In total, 78% of experts agreed that digital content is inevitable, 90% agreed that digital inclusion based on tools that were discussed will yield great benefits for students, and lastly 75% agreed that giving digital exposure to students must be standard practice. Conclusions: The response from experts confirms that digital inclusion is imperative, but instructors themselves lacked the know-how of emerging technologies. Only the curriculum of institutions with approved bachelor’s programs were included in this research. In our future work we hope to include all institutions and professional bodies as well.
- Published
- 2021
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27. Prevalence and drug resistance pattern of Listeria monocytogenes among pregnant women in Tigray region, Northern Ethiopia: a cross-sectional study
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Letemichael Negash Welekidan, Yemane Weldu Bahta, Mebrihit Gebremeskel Teklehaimanot, Getahun Kahsay Abay, Araya Gebreyesus Wasihun, Tsehaye Asmelash Dejene, Saravanan Muthupandian, Tadele Araya Mezgebo, and Amlsha Kahsay Hagos
- Subjects
Listeria monocytogenes ,Pregnant women ,Prevalence ,Drug resistance ,Tigray Region, Ethiopia ,Medicine ,Biology (General) ,QH301-705.5 ,Science (General) ,Q1-390 - Abstract
Abstract Objective The aim of this study was to determine the prevalence and antimicrobial susceptibility test of Listeria monocytogenes among pregnant women in Tigray region, Ethiopia. Results The overall prevalence of L. monocytogenes among pregnant women was found to be (8.5%; 12/141). With regard to the socio-demographic characteristics, a high prevalence of L. monocytogenes was observed in the age group of 20–24 years (18.6%; 8/43), rural dwellers (10%; 3/30), secondary school (9.6%; 5/52), and housewives (11.4%;10/88). A high drug resistance rate was observed to penicillin G (66.7%), clindamycin (66.7%), amoxicillin (50%) and vancomycin (50%). However, isolates were relatively sensitive to ciprofloxacin (75%), erythromycin (75%), trimethoprim/sulphamethaxazole (66.7%) and chloramphenicol (60%).
- Published
- 2019
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28. Bioengineered phytomolecules-capped silver nanoparticles using Carissa carandas leaf extract to embed on to urinary catheter to combat UTI pathogens.
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Haajira Beevi Habeeb Rahuman, Ranjithkumar Dhandapani, Velmurugan Palanivel, Sathiamoorthi Thangavelu, Ragul Paramasivam, and Saravanan Muthupandian
- Subjects
Medicine ,Science - Abstract
Rising incidents of urinary tract infections (UTIs) among catheterized patients is a noteworthy problem in clinic due to their colonization of uropathogens on abiotic surfaces. Herein, we have examined the surface modification of urinary catheter by embedding with eco-friendly synthesized phytomolecules-capped silver nanoparticles (AgNPs) to prevent the invasion and colonization of uropathogens. The preliminary confirmation of AgNPs production in the reaction mixture was witnessed by the colour change and surface resonance plasmon (SRP) band at 410nm by UV-visible spectroscopy. The morphology, size, crystalline nature, and elemental composition of attained AgNPs were further confirmed by the transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray diffraction (XRD) technique, Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The functional groups of AgNPs with stabilization/capped phytochemicals were detected by Fourier-transform infrared spectroscopy (FTIR). Further, antibiofilm activity of synthesized AgNPs against biofilm producers such as Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa were determined by viability assays and micrographically. AgNPs coated and coating-free catheters performed to treat with bacterial pathogen to analyze the mat formation and disruption of biofilm formation. Synergistic effect of AgNPs with antibiotic reveals that it can enhance the activity of antibiotics, AgNPs coated catheter revealed that, it has potential antimicrobial activity and antibiofilm activity. In summary, C. carandas leaf extract mediated synthesized AgNPs will open a new avenue and a promising template to embed on urinary catheter to control clinical pathogens.
- Published
- 2021
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29. Nasal carriage, risk factors and antimicrobial susceptibility pattern of methicillin resistant Staphylococcus aureus among healthcare workers in Adigrat and Wukro hospitals, Tigray, Northern Ethiopia
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Haftom Legese, Atsebaha Gebrekidan Kahsay, Amlisha Kahsay, Tadele Araya, Gebre Adhanom, Saravanan Muthupandian, and Araya Gebreyesus
- Subjects
Antimicrobial susceptibility test ,Health care workers ,methicillin resistance Staphylococcus aureus ,nasal carriage ,Staphylococcus aureus ,Medicine ,Biology (General) ,QH301-705.5 ,Science (General) ,Q1-390 - Abstract
Abstract Objective The aim of this study was to determine nasal carriage, risk factors and antimicrobial susceptibility pattern of methicillin resistant Staphylococcus aureus among health care-workers of Adigrat and Wukro hospitals Northern Ethiopia. Results The overall prevalence of S. aureus and methicillin resistance S. aureus (MRSA) in the present study were 12% (29/242) and 5.8% (14/242) respectively. The rate of MRSA among S. aureus was 48.3%(14/29). In this study, MRSA carriage was particularly higher among nurse professionals (7.8%) and surgical ward (17.1%). None of the MRSA isolates were sensitive to penicillin and ampicillin. However, low resistance was found for chloramphenicol and clindamycin. Being diabetic and use of hands rub was statistically significant with MRSA colonization.
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- 2018
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30. Prevalence and Molecular Characterisation of Methicillin-Resistant Coagulase Negative Staphylococci (MR-CoNS) Isolated from Nasal Carriers of End Stage Renal Disease Patients- A Prospective Study
- Author
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Saravanan Murugesan, Nagaraj Perumal, Betsy Sowndarya Dass, Ramanathan Vijayakumar, and Padma Krishnan
- Subjects
antibiotic resistance genes ,haemodialysis ,nasal carriers ,staphylococcal cassette chromosome mec ,Medicine - Abstract
Introduction: Patient-to-patient transmission of resistant strains has caused a rapid increase in the prevalence of antimicrobial resistance in recent years. Infection has become a major cause of morbidity and is the second most common cause of death in patients receiving haemodialysis. Compared to methicillinresistant Staphylococcus aureus (MRSA) transmission, less is known regarding the epidemiology of methicillin-resistant coagulase-negative staphylococci (MR-CoNS) in health care facilities. Patients receiving haemodialysis are at particular risk for the development of invasive infections caused by MR-CoNS. Aim: To detect the prevalence of antibiotic resistance genes among nasal carriage of MR-CoNS from End Stage Renal Disease (ESRD) patients and hospital personnel. Materials and Methods: This cross-sectional prospective study was conducted over a period of two months (AugustSeptember 2013) at the nephrology unit of a tertiary care hospital, Chennai, Tamil Nadu, India. A total of 145 anterior nasal swabs were collected from 115 patients and 30 hospital personnel. Screening of methicillin resistance was done by using phenotypic and genotypic method. Speciation of MRCoNS was done by conventional biochemical methods. Molecular detection of various antibiotic resistant genes and staphylococcal cassette chromosome mec (SCCmec) type (I-V) was determined by PCR based method. Results: Among 79 MR-CoNS isolates, S.epidermidis was the predominant species and highest resistance was seen towards co-trimoxazole (29; 36.7%) followed by tetracycline (18; 23%), gentamycin (17; 21.5%), fusidic acid (14; 18%) and linezolid (2; 2.5%). Among the SCCmec types, type IV (n=27) was the predominant type followed by type I (n=18) and type V (n=15), while 17 isolates had two types including I+V (n=8), IV+III (n=6), II+V (n=3). Conclusion: The findings of our study strongly suggest the need for the establishment of infection control program measures in order to prevent and reduce MR-CoNS infections in ESRD patients.
- Published
- 2019
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31. Prevalence and Resistance Pattern of Moraxella catarrhalis causing Respiratory Tract Infections in Cancer Patients
- Author
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Sajani Samuel, Noyar T, Gufran Ahmed, Parthiban Rudrapathy, and Saravanan Murugesan
- Subjects
Moraxella catarrhalis ,Respiratory tract infections ,Cancer patients ,Antibiotic resistance ,Medicine - Abstract
Background: The emergence of Moraxella catarrhalis as a nosocomial pathogen in the last decade with increasing prevalence of antibiotic resistant strains has gained interest. In immunocompromised hosts, the bacterium can cause a variety of severe infections, including pneumonia, endocarditis, septicemia and meningitis. Aim: The purpose of our current study was to evaluate the prevalence and resistance pattern of M. catarrhalis causing RTI among cancer patients. Methods: Patients suspected to be suffering from respiratory tract infection (RTI) were taken up for the study. All specimens were cultured. Identification was done by standard microbiological methods. Certain criteria were considered for determining the pathogenic significance of Moraxella catarrhalis. Result: Out of the total 355 respiratory samples received, 100 (28.1%) respiratory samples showed meaningful growths. The rest of 255 (71.8%) of the respiratory samples produced no significant respiratory bacterial pathogen or no growth. Out of the 100 meaningful samples 124 respiratory pathogens were isolated. Among 124 isolates 19 (15.3%) were Moraxella catarrhalis. Other bacterial isolates were as follows: Pseudomonas aeruginosa 17 (13.7%), Klebsiella pneumoniae 17 (13.7%), Escherichia coli 14 (11.2%), Acinetobacter baumanii 10(8.0%), Streptococcus spp 10 (8.0%), Staphylococcus spp 9 (7.2%), Candida albicans 8 (6.4%), Staphylococcus aureus 7 (5.6%) and others 13 (10.4%). The finding shows M. catarrhalis as one of the predominant bacterial pathogen causing respiratory tract infection in cancer patients. The susceptibility pattern of M. catarrhalis showed that all the isolates were more susceptible to Amoxycillin-clavulanic acid (57.8%), followed by Chloramphenicol (50.1%). Patients (47.3%) with Lung carcinoma were found to be more prone to get infection by M. catarrhalis. Conclusion: Keeping in mind the increasing prevalence of patients being infected with M. catarrhalis in our region, a larger scale research should be conducted to evaluate resistance pattern of M. catarrhalis. Continued surveillance of antimicrobial susceptibility pattern and application of control measures against further transmission are required to decrease the emergence of the resistant strains.
- Published
- 2019
32. Emergence of Non- Diphtheritic Corynebacterium as a Co- Pathogen in Various Clinical Specimens in Cancer Patients
- Author
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Sajani Samuel, Safeera A, Gufran Ahmed, Parthiban Rudrapathy, Saravanan Murugesan, and Dinju
- Subjects
Non- diphtheritic corynebaterium ,Biofilm ,Cancer patients ,Antibiotic resistance ,Medicine - Abstract
Corynebacterium other than C. diphtheria are referred to as non-diphtheritic Corynebacteria “diphtheroids” which have garnered medical interest due to an evolving number of publications referring to community-acquired and nosocomial infections. Non-diphtheria Corynebacteria (NDC) species cause disease in risk populations such as immunocompromised patients and those with implanted medical devices. This study was performed, to find out the prevalence of NDC species among cancer patients and to determine their antimicrobial susceptibility. Clinical specimens like sputum, pus, exudates, bronco-alveolar aspirates, urine and blood were collected by standard methods with aseptic precautions. Sputum along with other respiratory secretions (54%) and pus (33%) were the most prominent samples presenting diphtheroids as pathogenically significant isolates. Blood (5%), fluids and other exudates (7%) and urine (1%) were other specimens from which diphtheroids were isolated. The incidence of infections caused by bacteria among cancer patients in our study was estimated to be 17.9%. Among the infected individuals, 59% and 41% were male and female patients respectively with overwhelming incidence among elderly patients (>90%). Corynebacterium pseudodiphthereticum was isolated from 47% of the specimens. There was an alarming state of resistance among the isolates. Most of the tested antibiotics showed poor effectiveness except imipenem (100% susceptibility), linezolid (100% susceptibility) and tigecycline (100% susceptibility). The isolates were also found capable of forming biofilms.
- Published
- 2019
33. Undernutrition is associated with perturbations in T cell-, B cell-, monocyte- and dendritic cell- subsets in latent Mycobacterium tuberculosis infection.
- Author
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Anuradha Rajamanickam, Saravanan Munisankar, Chandra Kumar Dolla, and Subash Babu
- Subjects
Medicine ,Science - Abstract
Undernutrition, as described by low body mass index (BMI), is a foremost risk factor for the progression of active Tuberculosis (TB). Undernutrition is also known to impact the baseline frequencies of innate and adaptive immune cells in animal models. To verify whether undernutrition has any influence on the baseline frequencies of immune cells in latent Mycobacterium tuberculosis infection (LTBI), we examined the frequencies of T cell-, B cell, monocyte- and dendritic cell (DC)- subsets in individuals with LTBI and low BMI (LBMI) and contrasted them with LTBI and normal BMI (NBMI) groups. LBMI was characterized by decreased frequencies and absolute cell counts of T cells, B cells and NK cells in comparison with NBMI. LBMI individuals demonstrated significantly enhanced frequencies of naïve and effector CD4+ and CD8+ T cells and significantly decreased frequencies of central memory, effector memory CD4+ and CD8+ T cells and regulatory T cells. Among B cell subsets, LBMI individuals demonstrated significantly diminished frequencies of naïve, immature, classical memory, activated memory, atypical memory and plasma cells. In addition, LBMI individuals showed significantly decreased frequencies of classical monocytes, myeloid DCs and plasmacytoid DCs and significantly increased frequencies of intermediate and non-classical monocytes and myeloid derived suppressor cells. BMI exhibited a positive correlation with B cell and NK cell counts. Our data, therefore, demonstrates that coexistent undernutrition in LTBI is characterized by the occurrence of a significant modulation in the frequency of innate and adaptive immune cell subsets.
- Published
- 2019
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34. Emergence of Unusual Gram - Negative Bacteria Among Cancer Patients in a Tertiary Care Cancer Centre at North Kerala
- Author
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Saravanan Murugesan, Parthiban Rudrapathy, and Sajani Samuel
- Subjects
Unusual Gram-negative bacteria ,Cancer patients ,Antibiotic resistance ,Medicine - Abstract
Patients with cancer are at a high risk of infection and often the focus of the infection is not apparent. Blood- stream infections (BSIs) have been the leading complications in such patients. Bacteria are the primary causative agents of BSIs. However, in recent years, unusual gram-negative bacteria i.e. Stenotrophomonas, Burkholderia, Elizabethkingia, etc., have emerged as potential human pathogens in cancer patients. Hence, the current study was performed to analyze the unusual GNB and their antibiotic susceptibility profile in BSIs among cancer patients in a tertiary care cancer centre. This retrospective study was conducted at a tertiary care cancer centre at North Kerala. We analyzed microbiological profile of blood cultures received in the Microbiology Division from January 2016 to December 2017. All the blood cultures were processed by using automated blood culture system (Bactec 9050). The positive cultures were analyzed by automated identification and susceptibility systems (ViteK 2 compact). During the 2-year period, a total of 4154 blood cultures were done out of which 385 (9.2%) cultures yielded growth. Overall, 15 different species (n = 27/385; 7%) of unusual GNB pathogens was found from 385 positive cases. Burkholderia cepacia complex (n = 4) is the most common species followed by Pseudomonas putida (n = 3), Chryseobacterium gleum (n = 3), etc. This study revealed the emergence of unusual GNB as potential drug-resistant nosocomial pathogens in patients with cancer.
- Published
- 2019
35. Effect of zirconia silica nanofibers on flexural strength of feldspathic ceramic - An experimental study
- Author
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Rajdeep Tah, Ahila Singaravel Chidambaranathan, Muthu Kumar Balasubramanium, and Saravanan Meenakshi Sundaram
- Subjects
ceramics ,dental esthetic ,flexural strength ,nanofibers ,zirconium ,Medicine ,Biology (General) ,QH301-705.5 - Abstract
Background: Dental ceramics exhibit good optical and esthetic properties due to their translucency. Feldspathic ceramic is the most widely used veneering ceramic with brittleness, which accounts for most of its failure. Hence, this study was done to evaluate and compare the flexural strength of feldspathic ceramic reinforced with zirconia-silica nanofibers in the ratio of 2.5, 5, and 7.5 wt% with conventional feldspathic ceramic. Materials and Methods: According to ISO 6872, a master die was prepared from which resin bars were fabricated with 4.0 mm in width × 1.2 mm thickness × 25.0 mm length, Zirconia-silica nanofibers were produced by sol-gel electrospinning go around with calcination and blended with feldspathic ceramic through ball milling method. The samples were prepared with 0, 2.5, 5, 7.5 wt% nanofibers reinforced ceramic. The flexural strength of the samples was evaluated using three-point bending test. Results: The flexural strength values of zirconia-silica nanofibers reinforced ceramic groups were higher than control group. There was a gradual increase in the flexural strength values of felspathic ceramic groups with increase in wt% of nanofibers. Conclusion: The flexural strength of feldspathic ceramic samples reinforced with zirconia-silica nanofibers by 5 and 7.5 wt% were statistically significant compared to control, whereas the flexural strength of 2.5 wt% was statistically insignificant compared to the control group.
- Published
- 2021
- Full Text
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36. Use of Triplex PCR for Rapid Detection of PVL and Differentiation of MRSA from Methicillin Resistant Coagulase Negative Staphylococci
- Author
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Nagarajan Abimanyu, Arunkumar Krishnan, Saravanan Murugesan, Kaushik Subramanian G, Sivakumar Gurumurthy, and Padma Krishnan
- Subjects
pvl mrsa ,mrcons ,triplex pcr ,fema ,meca ,Medicine - Abstract
ABSTRACT Introduction: Methicillin-Resistant Staphylococcus aureus (MRSA) has become a major public health problem in both hospitals and communities. Panton – Valentine Leucocidin (PVL) has been reported to be an important marker for the highly pathogenic community acquired S. aureus infections. A rapid detection of these MRSA is very important for its treatment. The specific detection of MRSA is always a problem due to the prevalence of methicillin resistance among the coagulase negative Staphylococci. Hence, this study was done to develop a rapid triplex PCR for the detection of PVL positive MRSA and for the simultaneous differentiation of MRSA from Coagulase Negative Staphylococci (CoNS). Materials and Methods: We developed a triplex PCR for the specific detection of PVL positive Community Acquired (CA) – MRSA and for its simultaneous differentiation from the coagulase negative Staphylococci. We used PCR for targeting the fem A gene which is specific for S. aureus, mecA which is specific for methicillin-resistance and luk - PV which is specific for the PVL toxin. The method was evaluated with a total of 100 clinical isolates of Staphylococcus spp. Results: The triplex PCR was successfully standardized by using the reference strains and it was evaluated by using clinical strains. The method was found to be rapid, highly sensitive (100%), specific (99%) and cost effective. Conclusion: Triplex PCR can be used as a diagnostic tool for the detection of the highly pathogenic strains of CA-MRSA.
- Published
- 2013
- Full Text
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37. Analysis of Antibiotic Resistance Genes and its Associated SCCmec Types among Nasal Carriage of Methicillin Resistant Coagulase Negative Staphylococci from Community Settings, Chennai, Southern India
- Author
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Saravanan Murugesan, Nagaraj Perumal, Surya Prakash Mahalingam, Selva Kumar Dilliappan, and Padma Krishnan
- Subjects
antibiotic resistance ,asymptomatic healthy individuals ,mr-cons ,nasal carriage ,sccmec ,Medicine - Abstract
Objective: The study was designed to find the distribution of SCCmec types and the various antibiotic resistance genes amongst MR-CoNS isolates from asymptomatic individuals. Materials and Methods: A total of 145 nasal swabs were collected from asymptomatic healthy individuals from community settings. Identification and speciation of CoNS were done by standard biochemical methods. Screening of methicillin resistance (mecA gene) and detection of various antibiotic resistant genes were done using multiplex PCR method. SCCmec types (I - V) were determined using multiplex PCR. Results: 50 (44.6%) isolates were found to be methicillin resistant both by cefoxitin method and multiplex PCR. S. epidermidis (40%) was the predominant species followed by S. haemolyticus (28%), S. hominis (20%) and S. warneri (12%). Highest resistance was shown for cotrimoxazole (26%), followed by ciprofloxacin (24%), tetracycline (20%), erythromycin (18%), fusidic acid (10%) and mupirocin (6%). Among SCCmec types, 44 isolates showed single type, including type I (30%), type IV (24%), type II (18%), type V (14%) and type III (2%). 6 isolates showed two types, III+IV (n= 2), II+V (n=2), IV+V (n=1) and type I+V (n=1). Conclusion: In conclusion, to the best of our knowledge, this is the first study in India to study the distribution of antibiotic resistant genes and SCCmec types among MR-CoNS from community settings. This study highlights high prevalence of MR-CoNS in community and its role in harbouring genetically diverse SCCmec elements as antibiotic resistance determinant.
- Published
- 2015
- Full Text
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