Publications by authors named "Vijay Agrawal"

Inguinal hernia repair is one of the most frequently performed surgery. The ideal procedure for inguinal hernia repair remains controversial. Open Lichtenstein tension-free mesh repair (LMR) is one of the most preferred open techniques with satisfactory outcomes.

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Chediak-Higashi syndrome (CHS) is a rare, autosomal-recessive disorder characterized by oculocutaneous albinism, recurrent bacterial infections, progressive neurologic abnormalities, coagulation defects and a high risk of developing hemophagocytic lymphohistiocytosis characterized by pancytopenia, high fever, and lymphohistiocytic infiltration of liver, spleen, and lymph nodes. Treatment of accelerated-phase CHS is difficult with poor prognosis. Here, we report a two-and-a-half-year-old male child who was diagnosed with Chediak-Higashi Syndrome based on silvery hair, pathognomonic hair microscopy and giant azurophilic granules in granulocytes.

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Background: Dengue is endemic and prevalent in tropical and sub-tropical countries including India and can cause significant mortality and morbidity. There are limited studies available on factors associated with severe dengue from India, to investigate the predictors of severe dengue in south Indian patients.

Methods: We recruited 334 patients with dengue admitted in Yashoda Hospital, Hyderabad.

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Aim: The present study was conducted to explore the effect of supplementation of and synbiotics alone or in combination on the composition of broiler breast meat under heat stress conditions.

Materials And Methods: A 42-day feeding trial was conducted on 360 broiler chicks randomly allotted into eight treatment groups with three replicates each under completely randomized design. The T group was kept as control whereas T-T were supplemented with 0.

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Article Synopsis
  • Long-term corticosteroid use in children with Nephrotic Syndrome can lead to various ocular complications, including cataracts and glaucoma.* -
  • The study involved 100 patients aged 2-18, comparing those on a standard steroid regimen to those on an irrational long-term steroid intake.* -
  • Results showed that ocular abnormalities were significantly more prevalent in the irrational steroid group, correlating with higher cumulative steroid doses.*
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Objectives: Ureteroenteric anastomotic strictures are common after cystectomy with urinary diversion. Endoscopic treatments have poor long-term success, although ureteral reimplantation is associated with morbidity. Predictors of successful open repair are poorly defined.

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Purpose: Alvimopan has decreased ileus and need for nasogastric tube (NGT) after radical cystectomy (RC). However, the natural history of ileus versus intestinal obstruction in patients receiving alvimopan is not well defined. We sought to examine the implications of NGT placement before and after the introduction of alvimopan for RC patients.

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Aim: To estimate genetic variability in exon 3 of caprine myostatin gene in Marwari goats.

Materials And Methods: A total of 120 blood samples from unrelated Marwari goats were randomly collected from different villages of Bikaner (Rajasthan), India. Genomic DNA was extracted from whole blood using blood DNA isolation kit (Himedia Ltd.

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Purpose: Bacterial meningitis is a dreadful infectious disease with a high mortality and morbidity if remained undiagnosed. Traditional diagnostic methods for bacterial meningitis pose a challenge in accurate identification of pathogen, making prognosis difficult. The present study is therefore aimed to design and evaluate a specific and sensitive nested 16S rDNA genus-based polymerase chain reaction (PCR) assay using clinical cerebrospinal fluid (CSF) for rapid diagnosis of eight pathogens causing the disease.

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Present paper deals with the examination of Balaban F and G indices for estimating (13)C NMR chemical shift sums of alkanes. Set of 66 alkanes were used for this purpose, which have been divided into training set (50 compounds) and test set (16 compounds). The results have shown that Balaban G Index along with connectivity indices yields the best model.

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Leptospirosis is a zoonosis caused by a pathogenic spirochete "leptospira interrogans." Severe form of leprospira infection is usually associated with jaundice and renal involvement, leading to major hemorrhagic complications. Lung involvement can vary from subtle clinical features to deadly pulmonary hemorrhage and acute respiratory distress syndrome (ARDS).

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In the present study the volume of distribution values in humans of 121 drugs was estimated using quantitative structure pharmacokinetic relationship analysis. The multiple linear regression (MLR) method and nonlinear artificial neural network (ANN) and support vector machines (SVM) were employed for modeling. The theoretically calculated molecular descriptors were used for modeling and best set of descriptors selected by correlation based feature selection (CFS) method.

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Quantitative Structure-Activity Relationship (QSAR) models for binding affinity constants (log Ki) of 78 flavonoid ligands towards the benzodiazepine site of GABA (A) receptor complex were calculated using the machine learning methods: artificial neural network (ANN) and support vector machine (SVM) techniques. The models obtained were compared with those obtained using multiple linear regression (MLR) analysis. The descriptor selection and model building were performed with 10-fold cross-validation using the training data set.

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Aim: This study has compared the Shear Bond Strengths (SBSs) of ceramic brackets and metal brackets.

Materials And Method: Forty freshly extracted, human maxillary first premolars were selected for bonding. They were equally bonded with ceramic brackets (Transcend series 6000) and metal brackets (Mini Dynalock Straight wire brackets).

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In this study, a quantitative structure-pharmacokinetic relationship (QSPkR) model for the volume of distribution (Vd) values of 126 anti-infective drugs in humans was developed employing multiple linear regression (MLR), artificial neural network (ANN) and support vector regression (SVM) using theoretical molecular structural descriptors. A correlation-based feature selection (CFS) was employed to select the relevant descriptors for modeling. The model results show that the main factors governing Vd of anti-infective drugs are 3D molecular representations of atomic van der Waals volumes and Sanderson electronegativities, number of aliphatic and aromatic amino groups, number of beta-lactam rings and topological 2D shape of the molecule.

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Recently Balaban has introduced a J-type G index for modeling those properties/activities where not only the "shape" but also size of the graph influences the property/activity of organic compounds acting as drugs. Here, for the first time G index has been used for modeling the pancreatic β-cell K(ATP) channel openers viz R/S-3,4-dihydro-2,2-dimethyl-6-halo-4-(substituted phenylaminocarbonylamino)-2H-1-benzopyrans. Modeling technology used in this paper has established that the referred activity is excellently modeled by using G as one of the correlating descriptors.

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The present study deals with the estimation of the anti-HIV activity (log1/C) of a large set of 107 HEPT analogues using molecular descriptors which are responsible for the anti-HIV activity. The study has been undertaken by three techniques MLR, ANN, and SVM. The MLR model fits the train set with R (2)=0.

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Isolated involvement of patella as extra-pulmonary tuberculosis is very uncommon. It is the clinical presentation of the patellar osteomyelitis that makes it prone to delay in diagnosis as reported in literature. Imaging studies, especially MRI, are of great interest for the diagnosis and to assess the extent of tuberculosis.

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The machine learning methods artificial neural network (ANN) and support vector machine (SVM) techniques were used to model intrinsic solubility of 74 generic drugs. The models obtained were compared with those obtained using multiple linear regression (MLR) analysis. Cluster analysis was used to split the data into a training set and test set.

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The paper describes a method for the estimation of solubility (log S) of a series of 45 barbiturates employing 26 molecular descriptors. The molecular descriptors used being distance-based topological indices, information indices, valence connectivity index, shape indices, first-order Randic index. In addition, an indicator parameter was also used.

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Quantitative structure-activity relationship studies were performed to describe and predict the mutagenic activity of a set of 48 nitrated polycyclic aromatic hydrocarbons. From a larger pool of molecular descriptors (topological indices) we arrived at much a smaller set consisting of three correlating parameters. Such a variable selection is made using ncss software in that successive regressions were attempted using maximum-R(2) method.

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Comparative quantitative structure-activity relationship studies on para-substituted aromatic sulphonamides carbonic anhydrase II (CAII) inhibitors are reported in this paper. The study is made utilizing (i) information indices along; (ii) distance-based and connectivity indices and (iii) combination of information, distance-based and connectivity type topological indices. The study has shown that distance-based and connectivity type indices are superior for modelling, monitoring and estimating CAII inhibition.

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