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2.  Management of Proximal Tibia Fractures Using Wire Based Circular External Fixator 
Introduction
Management of high grade proximal tibia or tibial plateau fractures is often associated with complications. The use of wire fixators for the definitive treatment of such fractures entails a minimally invasive technique of insertion that gives good fracture reduction and stability combined with minimal postoperative complications.
Aim
To assess the outcome of treatment of such fractures by the use of Joshi’s external stabilization system (JESS), which is a wire based, circular external fixator system.
Materials and Methods
A prospective, uncontrolled study was done using JESS on 20 consecutive patients of high energy fractures of the tibial plateau, classified according to the Schatzker’s classification as type VI.
Results
In this series, road traffic accidents accounted for most of the injuries (n=12), while pedestrian accidents (n=4), injury due to fall from height (n=3) and injury due to fall while playing (n=1) were the other modes of injury. The mean patient age was 39.4 years. The mean follow up period was 24 weeks. In this study, using Knee society score evaluation, excellent results were seen in 12 patients (60%), good results were seen in 5 patients (25%), fair in 2 patients (10%) and bad in 1 patient (5%). Complications seen were, pin tract infections in two cases (10%) which resolved with dressings and oral antibiotics and one case of non-union (5%), in which the tibial plateau fracture extended into proximal 1/3 of the tibial shaft with severe comminution. No other complication was encountered.
Conclusion
JESS is a simple, inexpensive and useful technique in the management of high grade tibial plateau fractures.
doi:10.7860/JCDR/2015/15626.6513
PMCID: PMC4606298  PMID: 26500969
Bicondylar; JESS; Schatzker; Tibial plateau
3.  The use of evidence-based practices for the management of shoulder impingement syndrome among Indian physical therapists: a cross-sectional survey 
ABSTRACT
Background:
The understanding of the pathomechanics of shoulder impingement has evolved over the years. Likewise, assessment techniques and effective treatment strategies have also been developed. Physical therapists should keep up-to-date on the current evidence.
Objective:
This study explored the practices currently used by Indian physical therapists for the assessment and management of shoulder impingement syndrome (SIS).
Method:
Using an online questionnaire, therapists were asked to declare the causes, methods of assessment and their choices of physical therapy techniques for the management of SIS. The proportions of therapists using different techniques were analyzed descriptively, and comparisons across gender, experience level, and training were made. Data were analyzed to see if the choices of respondents compared with their responses for etiology.
Results:
A total of 211 responses were analyzed. Most respondents (>75%) believed that overuse and abnormal motion/posture are the most significant causes of SIS. However, fewer respondents reported assessing posture (60.2%) and dyskinesis, especially in women (24.2%). Ninety-four percent of the respondents reported using exercises, but exercise prescription was rather generic. Therapists additionally trained in the techniques of joint mobilization or taping declared using these techniques more frequently. The use of interferential therapy and ultrasound was reported by 89.5% and 98.4% of respondents, respectively
Conclusion:
Most therapists declared awareness of current recommended practices, but patient assessment, exercise prescription, and use of electrotherapy modalities were only partially based on current evidence. The study helps to identify gaps in current physical therapy approaches to SIS in India.
doi:10.1590/bjpt-rbf.2014.0115
PMCID: PMC4668341  PMID: 26647749
shoulder pain; assessment; EBP
4.  Effects of Functional Limb Overloading on Symmetrical Weight Bearing, Walking Speed, Perceived Mobility, and Community Participation among Patients with Chronic Stroke 
Background. Stroke is a leading cause for long-term disability that often compromises the sensorimotor and gait function accompanied by spasticity. Gait abnormalities persist through the chronic stages of the condition and only a small percentage of these persons are able to walk functionally in the community. Material and Method. Patients with chronic stroke were recruited from outpatient rehabilitation unit at Department of Neurology & Neurosurgery, All India Institute of Medical Sciences, having a history of first stroke at least six months before recruitment, with unilateral motor deficits affecting gait. The patients were randomly assigned to either the functional limb overloading (FLO) or Limb Overloading Resistance Training (LORT) group and provided four weeks of training. Result. We found that there was an improvement in gait performance, weight bearing on affected limb, and perceived mobility and community participation. Conclusion. To the best of our knowledge, this is the first study that has evaluated the effects of functional limb overloading training on symmetric weight bearing, walking ability, and perceived mobility and participation in chronic hemiplegic population. The study demonstrated a beneficial effect of training on all the outcomes, suggesting that the functional limb overloading training can be a useful tool in the management of gait problems in chronic stroke patients.
doi:10.1155/2015/241519
PMCID: PMC4639661  PMID: 26600952
5.  Integration of silver nanoparticle-impregnated polyelectrolyte multilayers into murine splinted cutaneous wound beds 
Silver is a commonly used topical antimicrobial. However, technologies to immobilize silver at the wound surface are lacking, while currently available silver-containing wound dressings release excess silver that can be cytotoxic and impair wound healing. We have shown that precise concentrations of silver at lower levels can be immobilized into a wound bed using a polyelectrolyte multilayer (PEM) attachment technology. These silver nanoparticle-impregnated PEMs are non-cytotoxic yet bactericidal in vitro, but their effect on wound healing in vivo was previously unknown.
Objective
The purpose of this study was to determine the effect on wound healing of integrating silver nanoparticle/PEMs into the wound bed.
Methods
A full-thickness, splinted, excisional murine wound healing model was employed in both phenotypically normal mice and spontaneously diabetic mice (healing impaired model).
Results
Gross image measurements showed an initial small lag in healing in the silver-treated wounds in diabetic mice, but no difference in time to complete wound closure in either normal or diabetic mice. Histological analysis showed modest differences between silver-treated and control groups on day 9, but no difference between groups at the time of wound closure.
Conclusions
We conclude that silver nanoparticle/PEMs can be safely integrated into the wound beds of both normal and diabetic mice without delaying wound closure, and with transient histological effects. The results of this study suggest the feasibility of this technology for use as a platform to effect nanoscale wound engineering approaches to microbial prophylaxis or to augment wound healing.
doi:10.1097/BCR.0b013e31827e7ef9
PMCID: PMC4609547  PMID: 23511285
silver nanoparticles; murine; wound; polyelectrolyte multilayers; splinted
6.  Evaluation of esthetic component of the index of orthodontic treatment need: The orthodontists’ perspective 
Indian Journal of Dentistry  2015;6(4):181-184.
Aim of the Study:
The purpose was to assess orthodontic treatment need in a subpopulation as assessed by the orthodontists.
Materials and Methods:
The study was conducted on a sample population of 753 patients aged 20–25 years to assess the need for orthodontic treatment using the esthetic component (AC) of the index of orthodontic treatment need (IOTN).
Results:
The AC revealed that 78.1% of the sample exhibited no or slight need for treatment, 13.2% demonstrated moderate to borderline need, and 8.7% proved to have a definite need for orthodontic treatment.
Conclusions:
The AC-IOTN can definitely be considered to be used as a powerful tool for prioritizing orthodontic triage, patient counseling, and planning desired orthodontic mechanotherapy.
doi:10.4103/0975-962X.170368
PMCID: PMC4691986  PMID: 26752877
Esthetic component; index of orthodontic treatment need; treatment needs
7.  G Protein-Coupled Estrogen Receptor 1 Mediates Acute Estrogen-Induced Cardioprotection via MEK/ERK/GSK-3β Pathway after Ischemia/Reperfusion 
PLoS ONE  2015;10(9):e0135988.
Three types of estrogen receptors (ER) exist in the heart, Esr1, Esr2 and the G protein-coupled estrogen receptor 1, Gper1. However, their relative importance in mediating estrogen protective action is unknown. We found that, in the male mouse ventricle, Gper1 transcripts are three- and seventeen-fold more abundant than Esr1 and Esr2 mRNAs, respectively. Analysis of the three ER knockouts (Esr1-/-, Esr2-/- and Gper1-/-) showed that only the Gper1-/- hearts lost their ability to be protected by 40 nM estrogen as measured by heart function, infarct size and mitochondrial Ca2+ overload, an index of mitochondrial permeability transition pore (mPTP) activity. Analysis of Akt, ERK1/2 and GSK-3β salvage kinases uncovered Akt and ERK1/2 transient activation by estrogen whose phosphorylation increased during the first 5 min of non-ischemic perfusion. All these increase in phosphorylation effects were abrogated in Gper1-/-. Inhibition of MEK1/2/ERK1/2 (1 μM U0126) and PI-3K/Akt (10 μM LY294002) signaling showed that the MEK1/2/ERK1/2 pathway via GSK-3β exclusively was responsible for cardioprotection as an addition of U0126 prevented estrogen-induced GSK-3β increased phosphorylation, resistance to mitochondrial Ca2+-overload, functional recovery and protection against infarction. Further, inhibiting PKC translocation (1 μM chelerythrin-chloride) abolished estrogen-induced cardioprotection. These data indicate that estrogen-Gper1 acute coupling plays a key role in cardioprotection against ischemia/reperfusion injury in male mouse via a cascade involving PKC translocation, ERK1/2/GSK-3β phosphorylation leading to the inhibition of the mPTP opening.
doi:10.1371/journal.pone.0135988
PMCID: PMC4565659  PMID: 26356837
8.  Characterization of Peptidyl-Prolyl Cis-Trans Isomerase- and Calmodulin-Binding Activity of a Cytosolic Arabidopsis thaliana Cyclophilin AtCyp19-3 
PLoS ONE  2015;10(8):e0136692.
Cyclophilins, which bind to immunosuppressant cyclosporin A (CsA), are ubiquitous proteins and constitute a multigene family in higher organisms. Several members of this family are reported to catalyze cis-trans isomerisation of the peptidyl-prolyl bond, which is a rate limiting step in protein folding. The physiological role of these proteins in plants, with few exceptions, is still a matter of speculation. Although Arabidopsis genome is predicted to contain 35 cyclophilin genes, biochemical characterization, imperative for understanding their cellular function(s), has been carried only for few of the members. The present study reports the biochemical characterization of an Arabidopsis cyclophilin, AtCyp19-3, which demonstrated that this protein is enzymatically active and possesses peptidyl-prolyl cis-trans isomerase (PPIase) activity that is specifically inhibited by CsA with an inhibition constant (Ki) of 18.75 nM. The PPIase activity of AtCyp19-3 was also sensitive to Cu2+, which covalently reacts with the sulfhydryl groups, implying redox regulation. Further, using calmodulin (CaM) gel overlay assays it was demonstrated that in vitro interaction of AtCyp19-3 with CaM is Ca2+-dependent, and CaM-binding domain is localized to 35–70 amino acid residues in the N-terminus. Bimolecular fluorescence complementation assays showed that AtCyp19-3 interacts with CaM in vivo also, thus, validating the in vitro observations. However, the PPIase activity of the Arabidopsis cyclophilin was not affected by CaM. The implications of these findings are discussed in the context of Ca2+ signaling and cyclophilin activity in Arabidopsis.
doi:10.1371/journal.pone.0136692
PMCID: PMC4552658  PMID: 26317213
9.  Acute Psychosis after Recent Isoniazid Initiation 
Isoniazid as part of Directly Observed Treatment-Short course (DOTS) regimen is universally used. Although, associated psychosis in certain cases is documented earlier, type of symptoms and onset of symptoms remains highly variable. We describe a case of 54-year-old female on anti-tubercular therapy with onset of psychosis within three days of Isoniazid initiation characterised by agitation, loosening of association, echolalia with spontaneous remission after drug stoppage. This case highlights the importance of remaining vigilant and considering isoniazid as possible causative agent for psychosis even within days of its intiation and avoiding delay in management.
doi:10.7860/JCDR/2015/12450.6130
PMCID: PMC4525588  PMID: 26266198
Secondary psychosis; Tuberculosis
10.  Regulation of Renal Hemodynamics and Function by RGS2 
PLoS ONE  2015;10(7):e0132594.
Regulator of G protein signaling 2 (RGS2) controls G protein coupled receptor (GPCR) signaling by acting as a GTPase-activating protein for heterotrimeric G proteins. Certain Rgs2 gene mutations have been linked to human hypertension. Renal RGS2 deficiency is sufficient to cause hypertension in mice; however, the pathological mechanisms are unknown. Here we determined how the loss of RGS2 affects renal function. We examined renal hemodynamics and tubular function by monitoring renal blood flow (RBF), glomerular filtration rate (GFR), epithelial sodium channel (ENaC) expression and localization, and pressure natriuresis in wild type (WT) and RGS2 null (RGS2-/-) mice. Pressure natriuresis was determined by stepwise increases in renal perfusion pressure (RPP) and blood flow, or by systemic blockade of nitric oxide synthase with L-NG-Nitroarginine methyl ester (L-NAME). Baseline GFR was markedly decreased in RGS2-/- mice compared to WT controls (5.0 ± 0.8 vs. 2.5 ± 0.1 μl/min/g body weight, p<0.01). RBF was reduced (35.4 ± 3.6 vs. 29.1 ± 2.1 μl/min/g body weight, p=0.08) while renal vascular resistance (RVR; 2.1 ± 0.2 vs. 3.0 ± 0.2 mmHg/μl/min/g body weight, p<0.01) was elevated in RGS2-/- compared to WT mice. RGS2 deficiency caused decreased sensitivity and magnitude of changes in RVR and RBF after a step increase in RPP. The acute pressure–natriuresis curve was shifted rightward in RGS2-/- relative to WT mice. Sodium excretion rate following increased RPP by L-NAME was markedly decreased in RGS2-/- mice and accompanied by increased translocation of ENaC to the luminal wall. We conclude that RGS2 deficiency impairs renal function and autoregulation by increasing renal vascular resistance and reducing renal blood flow. These changes impair renal sodium handling by favoring sodium retention. The findings provide a new line of evidence for renal dysfunction as a primary cause of hypertension.
doi:10.1371/journal.pone.0132594
PMCID: PMC4508038  PMID: 26193676
11.  A study of Hepatitis A and E virus seropositivity profile amongst young healthy adults in India 
Background
Various Serosurveys and studies provide ample evidence of differing perspectives regarding epidemiology of HAV and HEV in India. This study was conducted to assess the seroprevalence of HAV and HEV and its associated factors with an aim to provide inputs to planners regarding requirement of HAV vaccine.
Methods
A multi-centric cross sectional survey amongst 4175 healthy trainees (young adults) was carried out in training centres, selected by multistage random sampling, giving equal representation to all regions of India. Sample size was calculated by taking prevalence of HAV seropositivity amongst adults as 60% and alpha 0.05.
Results
Seroprevalence for HAV and HEV was 92.68% (95% CI 91.82, 93.47) and 17.05% (15.90, 18.26), respectively. Logistic regression showed that hand washing without soap, regular close contact with domestic animals, consumption of unpasteurized milk and regular consumption of food outside home were risk factors for HAV (p < 0.05). For HEV, irregular hand washing, consumption of unpasteurized milk and irregular consumption of freshly prepared food were risk factors (p < 0.05).
Conclusion
High level of immunity against HAV among the healthy young adults clearly demonstrates that vaccination against HAV is not required at present in our country. The large proportion being susceptible to HEV points towards the requirement of preventive strategies in the form of safe drinking water supply, hygiene, sanitation, increasing awareness and behaviour change with respect to personal hygiene especially hand and food hygiene.
doi:10.1016/j.mjafi.2014.06.016
PMCID: PMC4213908  PMID: 25378774
HAV; HEV; Vaccine; Multi-centric survey; Young adults; Trainees
12.  Remembering Sir G.V. Black 
Indian Journal of Dentistry  2015;6(3):147-148.
doi:10.4103/0975-962X.163047
PMCID: PMC4558750  PMID: 26392732
13.  MaxiK channel and cell signalling 
The large-conductance Ca2+- and voltage-activated K+ (MaxiK, BK, BKCa, Slo1, KCa1.1) channel role in cell signalling is becoming apparent as we learn how the channel interacts with a multiplicity of proteins not only at the plasma membrane but in intracellular organelles including the endoplasmic reticulum, nucleus and mitochondria. In this review, we focus on the interactions of MaxiK channels with seven transmembrane G-protein coupled receptors, and discuss information suggesting that the channel big C-terminus may act as nucleus of signalling molecules including kinases relevant for cell death and survival. Increasing evidence indicates that the channel is able to associate with a variety of receptors including β-adrenergic receptors, G-protein coupled estrogen receptors, acetylcholine receptors, thromboxane A2 receptors and angiotensin II receptors, which highlights the varied functions that the channel has (or may have) not only in regulating contraction/relaxation of muscle cells or neurotransmission in the brain but also in cell metabolism, proliferation, migration and gene expression. In line with this view, MaxiK channels have been implicated in obesity and in brain, prostate, and mammary cancers. A better understanding of the molecular mechanisms underlying or triggered by MaxiK channel abnormalities like overexpression in certain cancers may lead to new therapeutics to prevent devastating diseases.
doi:10.1007/s00424-013-1359-0
PMCID: PMC3969412  PMID: 24077696
BK channel; BKCa channel; Slo1; KCa1.1; macromolecular complexes; protein-protein interactions; human pathology
14.  A rare case of a intracardiac lipoma 
Highlights
•Cardiac lipomas are the third most common type of primary cardiac tumor.•There is no defined age or sex distribution.•Cardiac lipoma can present with a wide range of symptoms.•Echocardiography, CCT/CMR are radiological investigations of choice for diagnosis.•Surgical resection remains the mainstay of treatment of symptomatic cardiac lipomas.
Introduction
Primary tumors of the heart are exceedingly rare, accounting for less than 5% of all cardiac tumors; the remaining 95% of tumors are metastatic tumors to the heart. The most common primary cardiac tumors in adults are myxomas (usually occurring in the left atrium) followed by papillary fibroelastomas and lipomas with rhabdomyoma the most common in children.
Presentation of case
We are presenting a case of a 74-years-old female who initially presents with dizziness. No other associated symptoms reported and initial labs were in normal range. Echocardiogram was done as part of the dizziness/syncope work up which demonstrated a large right atrial mass. Due to the size of the mass and patient being symptomatic the mass was surgically resected with complete resolution of her symptoms and pathology consistent with a lipoma.
Discussion
Cardiac lipomas are benign and may be associated with a spectrum of symptoms which depends upon the size and location of the lipoma; although most cardiac lipomas are found incidentally and are asymptomatic. The best radiologic study to identify and help differentiate cardiac lipoma is echocardiogram. Cardiac computerized tomography (CCT) and cardiac magnetic resonance imaging (CMR) also place a role in differentiating cardiac lipomas from other cardiac tumors/lesions.
Conclusion
Cardiac lipomas are benign primary tumors which have no defined age or sex distribution and present with a wide range of symptoms. Echocardiography is first line diagnosis method with CCT/CMR for better imaging before surgical intervention. Surgical resection of the symptomatic cardiac lipomas remains the mainstream treatment.
doi:10.1016/j.ijscr.2015.02.024
PMCID: PMC4392332  PMID: 25746952
15.  A screening based approach to circumvent tumor microenvironment-driven intrinsic resistance to BCR-ABL+ inhibitors in Ph+ acute lymphoblastic leukemia 
Journal of biomolecular screening  2013;19(1):158-167.
Signaling by the BCR-ABL fusion kinase drives Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) and chronic myelogenous leukemia (CML). Despite their clinical activity in many patients with CML, the BCR-ABL kinase inhibitors (BCR-ABL-KIs) imatinib, dasatinib, and nilotinib provide only transient leukemia reduction in patients in Ph+ ALL. While host-derived growth factors present in the leukemia microenvironment have been invoked to explain this drug resistance, their relative contribution remains uncertain. Using genetically-defined murine Ph+ ALL cells, we identified Interleukin 7 (IL-7) as the dominant host-factor that attenuates response to BCR-ABL-KIs. To identify potential combination drugs that could overcome this IL-7-dependent BCR-ABL-KI-resistant phenotype, we screened a small molecule library including FDA-approved drugs. Among the validated hits, the well-tolerated anti-malarial drug dihydroartemisinin (DHA) displayed potent activity in vitro and modest in vivo monotherapy activity against engineered murine BCR-ABL-KI–resistant Ph+ ALL. Strikingly, co-treatment with DHA and dasatinib in vivo strongly reduced primary leukemia burden and improved long-term survival in a murine model that faithfully captures the BCR-ABL-KI-resistant phenotype of human Ph+ ALL. This co-treatment protocol durably cured 90% of treated animals, suggesting that this cell-based screening approach efficiently identified drugs that could be rapidly moved to human clinical testing
doi:10.1177/1087057113501081
PMCID: PMC3963394  PMID: 23989453
16.  Comparative Genomics of Ten Solanaceous Plastomes 
Advances in Bioinformatics  2014;2014:424873.
Availability of complete plastid genomes of ten solanaceous species, Atropa belladonna, Capsicum annuum, Datura stramonium, Nicotiana sylvestris, Nicotiana tabacum, Nicotiana tomentosiformis, Nicotiana undulata, Solanum bulbocastanum, Solanum lycopersicum, and Solanum tuberosum provided us with an opportunity to conduct their in silico comparative analysis in depth. The size of complete chloroplast genomes and LSC and SSC regions of three species of Solanum is comparatively smaller than that of any other species studied till date (exception: SSC region of A. belladonna). AT content of coding regions was found to be less than noncoding regions. A duplicate copy of trnH gene in C. annuum and two alternative tRNA genes for proline in D. stramonium were observed for the first time in this analysis. Further, homology search revealed the presence of rps19 pseudogene and infA genes in A. belladonna and D. stramonium, a region identical to rps19 pseudogene in C. annum and orthologues of sprA gene in another six species. Among the eighteen intron-containing genes, 3 genes have two introns and 15 genes have one intron. The longest insertion was found in accD gene in C. annuum. Phylogenetic analysis using concatenated protein coding sequences gave two clades, one for Nicotiana species and another for Solanum, Capsicum, Atropa, and Datura.
doi:10.1155/2014/424873
PMCID: PMC4248371  PMID: 25477958
18.  Oral Hygiene Practices and Dentition Status of Public Transport Workers of India- A Cross-sectional Study 
Objectives: To evaluate the oral hygiene practices and dentition statuses of transport workers who were working in a public bus transport system (C.T.U.) of Chandigarh (U.T.), India.
Materials and Methods: The data were recorded on a modified W.H.O. format (1997). A total of 1008 subjects constituted the final sample size. Information was obtained regarding the oral hygiene practices and clinical examinations were conducted. Statistical analysis was done by using ANOVA and Z-test.
Results: The mean age of the subjects was 45.3 ± 7.8 years. Mean DMFT of the subjects who were not using tobacco in any form was 5.02. 80.2% (808). 88.7% of the subjects brushed their teeth as least once a day. Mean number of decayed and missing teeth were 1.67 ± 2.16 and 1.46 ± 2.8, respectively and their relation with age was found to be statistically significant.
Conclusion: Dental caries was found to be major indication in all the age groups. More elderly subjects than young needed extractions. This study emphasized the need of an improved dental awareness and availability of dental facilities to transport workers.
doi:10.7860/JCDR/2014/7971.4829
PMCID: PMC4225970  PMID: 25386518
Dentition Status; Oral Hygiene Practices; Oral Health; Transport Workers
19.  Outbreak investigation: Salmonella food poisoning 
Background
An outbreak of food poisoning was reported from a Military establishment on 29 May 2011 when 43 cases of food poisoning reported sick in a span of few hours.
Methods
A retrospective-prospective study was conducted. Data regarding the onset of symptoms, presenting features and history of food items consumed was collected. A detailed inspection of the mess for hygiene and sanitary status, cooking and storage procedure, and rodent nuisance was also carried out.
Results
A total of 53 cases of food poisoning occurred between 29 and 31 May 2011. All cases had symptoms of diarrohea followed by fever (96.2%), headache (84.9%), abdominal pain (50.1%), nausea and vomiting (49.1%) and bodyache (39.6%) respectively. Based on the Attributable Risk (AR = 46.67%) and Relative Risk (RR = 4.5, 95% CI = 1.22–16.54) Potato-bitter gourd vegetable served during dinner on 28 May 2011 was incriminated as the food item responsible for outbreak.
Conclusion
Symptomatology, incubation period and presence of rodent nuisance suggested contamination of Potato–bitter gourd vegetable with non-typhoidal Salmonella spp.
doi:10.1016/j.mjafi.2013.01.005
PMCID: PMC3862925  PMID: 24600149
Food poisoning; Non-typhoidal Salmonella spp; Military establishment
20.  Evaluation of three different concentrations of Chlorhexidine for their substantivity to human dentin 
Indian Journal of Dentistry  2014;5(4):199-201.
Aim:
To evaluate the substantivity of different concentrations of Chlorhexidine (CHX) to dentin disks prepared in-vitro
Materials and Methods:
Sixty dentin disks were prepared from extracted human third molars and divided into three groups (each containing 20 disks). All the disks were partially demineralized, as per standard procedure. Group A specimens were then treated with 10 microliters of 0.02% Chlorhexidine, Group B specimens with 10 microliters of 0.2% Chlorhexidine, and Group C specimens were treated with 10 microliters of 2% Chlorhexidine. They were then incubated in 1 ml of Phosphatebufferedsaline PBS (pH 7.4). The substantivity was evaluated after 24 hours and one week of incubation. CHX concentration in the eluates was spectrophotometrically analyzed.
Results:
A significant amount of CHX was found retained on the dentin disks in Group B as compared to Group C. Also, Group A performed significantly better than group C. However, no statistically significant difference was observed between Group A and Group B.
Conclusion:
Both 0.02% and 0.2% Chlorhexidine can be clinically recommended when being used for prolonging the durability of resin-dentin bond.
doi:10.4103/0975-962X.144726
PMCID: PMC4260385  PMID: 25565753
Bond strength; chlorhexidine; concentration
21.  A Comprehensive Analysis of Articles Retracted Between 2004 and 2013 from Biomedical Literature – A Call for Reforms 
Science is a dynamic subject and it was never free of misconduct or bad research. Indeed, the scientific method itself is intended to overcome mistakes and misdeeds. So, we aimed to assess various factors associated with retraction of scientific articles from 2004 to 2013. Data were retrieved from PubMed and Medline using the keywords retraction of articles, retraction notice, and withdrawal of article in April 2014 to detect articles retracted from 2004 to 2013. Statistical analysis was carried out using t-test and Karl Pearson's correlation coefficient. Results showed that a total of 2343 articles were retracted between 2004 and 2013, and original articles followed by case reports constituted major part of it. Time interval between submission and retraction of article has reduced in recent times. Impact factor and retraction do not have any significant correlation. We conclude that although retraction of articles is a rare event, its constant rise in scientific literature is quite worrisome. It is still unclear whether misconduct/mistakes in articles are increasing hastily or the articles are retracted at a rapid rate in recent times. So, it should be considered as an urgent issue and it is the responsibility of journal editors to track misconduct by following Committee on Publication Ethics (COPE) guidelines and making an effective strategy.
doi:10.4103/2225-4110.136264
PMCID: PMC4142449  PMID: 25161916
Duplication of article; Plagiarism; Retraction of articles; Self-correction
22.  Primary Mesenteric Fibromatosis: A Case Report with Brief Review of Literature 
The Indian Journal of Surgery  2012;75(Suppl 1):131-133.
Although fibromatosis of the mesentery is a very rare locally aggressive benign condition, the uncertain treatment modalities, the natural history of the disease, and the other common differential diagnosis of the condition along with inexperience of the general clinicians with this disease pose a challenge to the professionals. The prolonged periods of stability and even regression in size of the tumor offer a hope for treatment. Accounting for 0.03 % of all neoplasms, it is also known as deep fibromatosis and desmoid tumor. Here, we discuss one case of primary mesenteric fibromatosis in a young male patient who presented to us with chronic abdominal pain after he was treated for acid peptic disease for the same at a local hospital. This case shows how management of this disease can be delayed due to unfamiliarity among clinicians of this condition. In our patient, a palliative surgical management plan was undertaken due to symptomatic mass in the abdomen, owing to unresectability.
doi:10.1007/s12262-012-0515-7
PMCID: PMC3693259  PMID: 24426540
Mesentery; Mesenteric tumors; Fibromatosis; Desmoid tumors; Gardner’s syndrome
24.  Shear punch strength evaluation of nanocomposite and compomer, post-conditioning in dietary solvents – An in-vitro study 
Background
Perpetual research in esthetic dentistry has stupendously contributed in improving the mechanical and esthetic properties of restorative materials. Recently introduced nanocomposite claim to possess higher optimized esthetic and mechanical properties superior to other esthetic restorative materials in clinical use. It has been highlighted in many studies that intraoral degradation of composites is a consequence of both mechanical factors and chemical degradation. Thus, this in-vitro study was conducted to determine the strength of commonly used esthetic restorative materials after conditioning them in dietary solvents, thereby, simulating the intraoral environment.
Aim
Evaluation of shear punch strength of nanocomposite and compomer, post-conditioning in dietary solvents.
Materials and methods
Two test groups mentioned above, each containing sixty preconditioned samples, divided into four subgroups of fifteen samples each and conditioned in different dietary solvents, were subjected to shear punch test in custom designed shear punch apparatus in Universal Testing Machine.
Results
Among the dietary solvents, citric acid caused maximum decrease in the strength while conditioning in heptane showed increase in strength of the test restorative materials.
Conclusion
Nanocomposite revealed to have higher strength, thereby indicating its better application universally.
doi:10.1016/j.jobcr.2014.02.005
PMCID: PMC4252630  PMID: 25737916
Nanocomposite; Compomer; Shear punch test; Dietary solvents
25.  Hand hygiene practices among health care workers (HCWs) in a tertiary care facility in Pune 
Background
Improper hand hygiene by healthcare workers (HCWs) is responsible for about 40% of nosocomial infections resulting in prolonged illnesses, hospital stays, long-term disability and unexpected high costs on patients and their families, and also lead to a massive additional financial burden on the health-care system.
Objective
To assess knowledge and practices regarding hand hygiene among HCWs of a tertiary health care facility.
Methods
A cross sectional, questionnaire and observation based study was carried out in a tertiary care health care facility in Pune. Based on sample size calculations, 100 HCWs working in medical and surgical wards were studied.
Results
The proportion knowledgeable about hand hygiene practices was 85% and 73% HCWs were of the belief that unclean hands are an important route of cross transmission. WHO guidelines regarding procedure were being followed by 90% for hand washing with soap and water and 64% for alcohol based rubs. Majority preferred hand washing with soap and water over hand rubbing with alcohol based solutions. 21% of HCWs were missing hand hygiene opportunities 1 in 5 times. Heavy workload (38%), non availability (52%) and inaccessibility (9%) of hand hygiene facilities were the common reasons for non-compliance. Availability of ‘one time use paper towels’ was low (12%).
Conclusion
Inadequate compliance despite knowledge and false sense of security by alcohol based rubs was seen. A multi disciplinary, multifaceted approach is required to tackle issues of non-compliance.
doi:10.1016/j.mjafi.2012.08.011
PMCID: PMC3862659  PMID: 24532935
Hand hygiene; Health care workers; Nosocomial infections; Universal precautions; Tertiary health care facility

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