1.Accuracy of Femoral Tunnel Placement between Anteromedial and Anterolateral Visualisation Portals in Anterior Cruciate Ligament Reconstruction - Outcomes of a CT based Cross-Sectional Study
Balaji G ; Yadav G ; Patel SA ; Ramesh A ; Nema S ; Ramalingam T
Malaysian Orthopaedic Journal 2023;17(No.2):7-12
Introduction: Anatomical femoral tunnel placement is
critical for anterior cruciate ligament reconstruction
(ACLR). Tunnel placement may vary with different surgical
techniques. The aim of this study was to compare the
accuracy of femoral tunnel placement between the
Anteromedial (AM) and Anterolateral (AL) visualisation
portals on post-operative CT scans among a cohort of ACLR
patients.
Materials and methods: This cross-sectional study was
conducted from January 2018 to March 2020 after obtaining
ethics clearance. Patients who went for arthroscopic ACLR
in our institute were divided into an AM (group 1) and an AL
(group 2) based on the visualisation portal for creating the
femoral tunnel and a 3D CT scan was done. The femoral
tunnel position was calculated in deep to shallow and high to
low direction using the Bernard Hertel grid. Femoral tunnel
angle was measured in the 2D coronal image. Statistical
analysis was done with the data collected.
Results: Fifty patients with an average age of 26.36 (18-55)
years ±7.216 SD were enrolled in the study. In this study, the
AM technique was significantly more accurate (p<0.01) than
the AL technique in terms of femoral tunnel angle.
Furthermore, the deep to the shallow position was
significantly (p= 0.018) closer to normative values, as
determined by the chi-square test. The chances of error in
tunnel angle in femoral condyle are 2.6 times greater in the
AL technique (minimal clinical difference).
Conclusion: To conclude, in ACLR the anteromedial
visualisation portal can facilitate accurate femoral tunnel
placement compared to the anterolateral visualisation portal.
2.Drug utilization evaluation of medications used in the management of neurological disorders
Upadhya MEGHANA ; Jimmy NIVYA ; Jaison Maria JESSLYN ; Sidheque SHAHAL ; Sundaramurthy HARSHA ; C S NEMICHANDRA ; Paneyala SHASTHARA ; Ramesh MADHAN ; Syed JEHATH ; Pal NIKITA ; Chalasani Harsha SRI
Global Health Journal 2023;7(3):153-156
Background and object:The burden of neurological disorders in India is expected to increase due to the rapid demographic and epidemiological transition,with irrational drug use,which is also a global concern.Thus,drug utilization evaluation is designed to ensure appropriate medicine use within the healthcare settings.The aim of the study was to assess the rate and pattern of drug utilization in the management of neurological disorders.Materials and methods:A hospital-based cross-sectional drug utilization evaluation study on neurological drugs was carried out at the Department of Neurology over a span of six months.All legible prescriptions consisting neurological medications irrespective of patient's gender,aged ≥18 years were included for the study.The World Health Organization(WHO)core drug use indicators were used to assess the drug prescribing and utilization patterns.Results:A total of 310 prescriptions were reviewed,where male predominance was found to be 56.45%.Out of 310 prescriptions,drugs belonging to 26 neurological classes were prescribed for the management of various neurological disorders.The majority of patients were diagnosed with epilepsy and the most prescribed drugs per patient were phenytoin(14.8%)and valproic acid(6.45%).By following the WHO core drug prescribing indicators,65.47%of drugs prescribed from the India National List of Essential Medicines,2022,followed by 29.83%of drugs prescribed in generic name and 10.86%of prescriptions including injections.Conclusion:The study findings showed that the prescribing pattern in the Department of Neurology was in accordance with the WHO core prescribing indicators.But,the extent of polypharmacy prescriptions was very high.Therefore,interventions are very necessary to promote rational drug prescribing patterns and thus clinical pharmacists can contribute to assess and review the drug utilization pattern to optimize the drug therapy and improvement in patient safety.
3. Protein extract of kenaf seed exhibits anticoagulant, antiplatelet and antioxidant activities
Sujatha HANUMEGOWDA ; Manjula VENKATAPPA ; Sathisha GONCHIGAR ; Chandramma SRINIVASA ; Ashwini SHIVAIAH ; Ramesha HANUMANTHAPPA ; Devaraja SANNANINGAIAH ; Rajesh RANGAPPA ; Ramesh LAXMAIAH
Asian Pacific Journal of Tropical Biomedicine 2022;12(2):47-58
Objective: To explore the anticoagulant, antiplatelet and antioxidant activities of protein extract of kenaf seed (PEKS). Methods: Sodium dodecyl sulphate polyacrylamide gel electrophoresis and reverse-phase high-performance liquid chromatography techniques were employed for protein characterization. Antioxidant activity of PEKS was assessed using 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. The protective effect of PEKS on sodium nitrite (NaNO 2) induced oxidative stress was evaluated using the in vitro red blood cell model, while the effect of PEKS on diclofenac-induced oxidative stress was examined in vivo in rats. Platelet-rich plasma and platelet-poor plasma were used for anticoagulant and antiplatelet activities of PEKS. Results: PEKS revealed similar protein bands on SDS-PAGE under reduced and non-reduced conditions. Several acidic proteins were present in native PAGE. PEKS showed antioxidant properties by scavenging DPPH with an IC 50 of 24.58 μg. PEKS exhibited a protective effect on NaNO 2 induced oxidative stress in red blood cells by restoring the activity of stress markers. In addition, PEKS alleviated diclofenac-induced tissue damage of the liver, kidney, and small intestine. PEKS showed an anticoagulant effect in both in vivo and in vitro experiments by enhancing normal clotting time. PEKS did not affect prothrombin time but increase activated partial thromboplastin time. Furthermore, PEKS inhibited adenosine diphosphate and epinephrine-induced platelet aggregation. Conclusions: PEKS protects tissues from oxidative stress and exhibits antithrombotic activity.
4.Polyvaccine: joining the links in the cascade of type 1 diabetes
Shivani DESAI ; Ramesh R. BHONDE ; Sameer S. PAREKH
Clinical and Experimental Vaccine Research 2021;10(1):1-5
The incidence of type 1 diabetes mellitus (T1DM), an autoimmune disorder, has ascended considerably with around 98,200 and 15,900 incidents in children below 15 years of age, globally and in India, respectively. This is typically due to environmental changes leading to genetic modifications. Also, T1DM encompasses the presence of autoantigens and many other etiologies which can be targeted by proper immunization. In this paper, we consciously discuss and collate various candidate triggers of islet autoimmunity and other factors expected to promote progression of T1DM. This paper bridges all the mechanisms caused by these factors and linking them with each other. We have also highlighted on the novel corona virus as a trigger for T1DM. Finally, we suggest that an amalgamated model of polyvaccine can batter the condition by inducing protection against various triggers of T1DM.
5.Antibacterial and anticancer potential of Brassica oleracea var acephala using biosynthesised copper nanoparticles
C Shanmuga Sundaram ; J Sivakumar ; S Suresh Kumar ; PLN Ramesh ; Thant Zin ; US Mahadeva Rao
The Medical Journal of Malaysia 2020;75(6):677-684
ary phytochemical screening. The resultsshowed that the ethanolic crude extract of the leaf containhigh phytochemical activity hence B.oleraceavaracephalais rich in flavonoids, phenolic compounds, carbohydratesand phytosterols. Materials and methods: The ethanolic extract was used tosynthesise copper nanoparticles. The copper nanoparticleswere successfully synthesised from copper sulphatesolution which was identified by the colour change fromdark green colour of the extract. Thus the B.oleracea varacephala is a good source to synthesis coppernanoparticles. The synthesised copper nanoparticles werecharacterised using Scanning Electron Microscope (SEM)analysis. The SEM image displayed the high-densitynanoparticles synthesised by leaf extracts and that thenanoparticles were crystals in shape. Results: The copper nanoparticles (CNP) bind to the leafextract. B.oleraceavaracephalaalso has shown theantimicrobial and antioxidant activity. A comparative studywas done between ethanolic its crude extract andnanoparticles. Both extracts exhibited zone of inhibition andbetter antioxidant potential but the CuNPs shows majorzone of inhibition and showed more antioxidant activity.Anticancer activity of B.oleraceavaracephalaagainstCervical HeLa cell line was confirmed using ethanolic crudeextract and CNP. The results showed that HeLa cellsproliferation was inhibited with increasing concentration ofethanolic crude extract and copper nanoparticles. From theresults, it was seen that percentage viability of the cancercells decreased with increased concentration of the sampleswhereas cytotoxicity against HeLa cell lines increased withthe increased concentration of the samples. Conclusion: Thus B.oleraceavaracephalapossessesanticancer activity against HeLa cell lines.
6.Novel radioligands for imaging sigma-1 receptor in brain using positron emission tomography (PET).
Yu LAN ; Ping BAI ; Zude CHEN ; Ramesh NEELAMEGAM ; Michael S PLACZEK ; Hao WANG ; Stephanie A FIEDLER ; Jing YANG ; Gengyang YUAN ; Xiying QU ; Hayden R SCHMIDT ; Jinchun SONG ; Marc D NORMANDIN ; Chongzhao RAN ; Changning WANG
Acta Pharmaceutica Sinica B 2019;9(6):1204-1215
The sigma-1 receptor (R) is a unique intracellular protein. R plays a major role in various pathological conditions in the central nervous system (CNS), implicated in several neuropsychiatric disorders. Imaging of R in the brain using positron emission tomography (PET) could serve as a noninvasively tool for enhancing the understanding of the disease's pathophysiology. Moreover, R PET tracers can be used for target validation and quantification in diagnosis. Herein, we describe the radiosynthesis, PET/CT imaging of novel R C-labeled radioligands based on 6-hydroxypyridazinone, [C]HCC0923 and [C]HCC0929. Two radioligands have high affinities to R, with good selectivity. In mice PET/CT imaging, both radioligands showed appropriate kinetics and distributions. Additionally, the specific interactions of two radioligands were reduced by compounds and (self-blocking). Of the two, [C]HCC0929 was further investigated in positive ligands blocking studies, using classic R agonist SA 4503 and R antagonist PD 144418. Both R ligands could extensively decreased the uptake of [C]HCC0929 in mice brain. Besides, the biodistribution of major brain regions and organs of mice were determined . These studies demonstrated that two radioligands, especially [C]HCC0929, possessed ideal imaging properties and might be valuable tools for non-invasive quantification of R in brain.
7.A Comparative Study On Social Media Addiction Between Public And Private High School Students Of Urban Bengaluru, India
N R Ramesh Masthi ; Pruthvi S ; Phaneendra Mallekavu
ASEAN Journal of Psychiatry 2017;18(2):72-81
Objective: Social media usage is a global consumer phenomenon that has risen exponentially in the last few years. Published Indian studies on social media addiction are scarce and social media associated health issues are an emerging health problem in India. Objectives: To assess and compare social media addiction between private and public high-school students and to assess health problems related to social media usage across these groups.
Methods: This crosssectional study was completed in 2016. It was conducted in five private and five public high schools across wards of Bengaluru city that were selected by simple random sampling. The subjects were students studying in grades 8, 9 and 10 (aged between 12 and 16 years). A total of 760 subjects were recruited, 380 from public and 380 from private high schools. They were administered a pretested, semi-structured, self-administrated questionnaire in either the local language or English. Univariate and multivariate logistic regression were employed to establish any associations between social media addiction and various other factors.
Results: In our samples, 60.95% of social media users studied in private schools and 39.05% in public schools (z = 10.31, p<0.001). The most commonly used social media applications were, Internet gaming (69.23%) in Public schools and WhatsApp (61.15%) in Private schools. The overall prevalence of social media addiction was 19.96% among users with significantly higher rates of selfreported addiction in private schools (z = 3.47, p < 0.001). A total of 70.67% of the subjects had one or more physical symptoms, i.e. neck pain, tension, strain on eyes and fatigue of which 67.42% and 72.75% were from public and private schools, respectively. Psychological changes, i.e. anger, lonely and frustration; and behavioural changes, i.e. sleep disturbance and neglect personal hygiene were observed in 67.42% and 51.01% of public and private school pupils, (z = 3.85, p < 0.001), respectively.
Conclusion: Private school students were more prone for social media addiction. Majority had mild addiction. Addiction was associated with behavioural changes. A multitude of physical, psychological and behavioural problems were observed among social media users.
8.Management of neglected femoral neck fracture in above knee amputated limb: A case report.
Umesh MEENA ; Ramesh MEENA ; Balaji S ; Sahil GABA
Chinese Journal of Traumatology 2015;18(6):370-372
The treatment of an above knee amputee who has sustained a fracture of the femoral neck is a chal- lenging situation for both the orthopedic surgeon and the rehabilitation team. These fractures may be managed acutely either by reduction and internal fixation or by endoprosthetic replacement based on the same criteria as in any other patient with otherwise intact limbs.We present a neglected case treated successfully with valgus osteotomy. We conclude that these fractures should be treated with the same urgency and expertise as similar fractures in non-amputees as long-term survival and good quality of life can be expected.
Adult
;
Amputation
;
Femoral Neck Fractures
;
diagnostic imaging
;
surgery
;
Fracture Fixation, Internal
;
methods
;
Humans
;
Leg
;
surgery
;
Male
9.Cytotoxic and antibacterial substances against multi-drug resistant pathogens from marine sponge symbiont: Citrinin, a secondary metabolite of Penicillium sp.
Ramesh SUBRAMANI ; Rohitesh KUMAR ; Pritesh PRASAD ; William AALBERSBERG ; S T RETHEESH
Asian Pacific Journal of Tropical Biomedicine 2013;3(4):291-296
OBJECTIVETo Isolate, purify, characterize, and evaluate the bioactive compounds from the sponge-derived fungus Penicillium sp. FF001 and to elucidate its structure.
METHODSThe fungal strain FF001 with an interesting bioactivity profile was isolated from a marine Fijian sponge Melophlus sp. Based on conidiophores aggregation, conidia development and mycelia morphological characteristics, the isolate FF001 was classically identified as a Penicillium sp. The bioactive compound was identified using various spectral analysis of UV, high resolution electrospray ionization mass spectra, 1H and 13C NMR spectral data. Further minimum inhibitory concentrations (MICs) assay and brine shrimp cytotoxicity assay were also carried out to evaluate the biological properties of the purified compound.
RESULTSBioassay guided fractionation of the EtOAc extract of a static culture of this Penicillium sp. by different chromatographic methods led the isolation of an antibacterial, anticryptococcal and cytotoxic active compound, which was identified as citrinin (1). Further, citrinin (1) is reported for its potent antibacterial activity against methicillin-resistant Staphylococcus aureus (S. aureus), rifampicin-resistant S. aureus, wild type S. aureus and vancomycin-resistant Enterococcus faecium showed MICs of 3.90, 0.97, 1.95 and 7.81 µg/mL, respectively. Further citrinin (1) displayed significant activity against the pathogenic yeast Cryptococcus neoformans (MIC 3.90 µg/mL), and exhibited cytotoxicity against brine shrimp larvae LD50 of 96 µg/mL.
CONCLUSIONSCitrinin (1) is reported from sponge associated Penicillium sp. from this study and for its strong antibacterial activity against multi-drug resistant human pathogens including cytotoxicity against brine shrimp larvae, which indicated that sponge associated Penicillium spp. are promising sources of natural bioactive metabolites.
Animals ; Anti-Bacterial Agents ; chemistry ; pharmacology ; Artemia ; drug effects ; Citrinin ; chemistry ; pharmacology ; Drug Resistance, Multiple, Bacterial ; drug effects ; Lethal Dose 50 ; Methicillin-Resistant Staphylococcus aureus ; drug effects ; Microbial Sensitivity Tests ; Penicillium ; chemistry ; cytology ; Porifera ; microbiology ; Toxicity Tests


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