47 research outputs found
An analytical study of 50 women presenting with an adnexal mass
Background: The aim of this study was to detect and determine the origin of adnexal mass and to narrow down the diagnosis. Also, to determine the reliability of the bimanual pelvic examination in diagnosing adnexal mass and to determine clinical, radiological and histopathological co-relation of adnexal mass. Adnexal mass lesions are fairly common among women (with a prevalence of 0.17% to 5.9% in asymptomatic women and 7.1% to 12% in symptomatic women) of all age group but very common among reproductive age. Differential diagnosis of adnexal mass is difficult and complex. Recognition of the severity of the problem, appropriate and timely evaluation and treatment with good outcome is the goal.Methods: Prospective, observational study of 50 patients with suspected various adnexal masses were conducted for a period of 1.5yr i.e. from November 2014 to May 2016. All patients underwent pelvic and ultrasonography examination. All patients later underwent surgery. Results were correlated later.Results: The patient ages ranged from 19 to 58 with a mean age of 31.5. Most common site of origin of adnexal masses is the Ovary (Rt. 38% and Lt. 34%) Most common adnexal masses on histopathological diagnosis are mucinous cyst adenoma (20%), Benign and mature cystic teratoma (16% and 6%) and serous cyst adenoma (10%). About 92% patients with adnexal mass presents with abdominal pain as a chief complaint.Conclusions: Although bimanual palpation of the adnexal masses may not allow a very specific diagnosis, clinically useful information can usually be obtained and hence it is particularly useful as a first step in assessment of adnexal masses and as an adjunct to morphological assessment of ovarian lesions. Ultrasonography is an important noninvasive investigation and is helpful in diagnosing most of these cases, but the histopathological examination of specimen obtained from laparotomy of adnexal mass is the gold standard for confirming the diagnosis
Animal Injuries; a Case Series of Bull Induced Injuries in India
Introduction: Bull injuries are common in India. An injury by a bull is more common in rural and agriculture dependent regions of the country. The incident causing injury by a bull can be sports related or work related. Work related injuries are almost mostly seen in farmers. Case presentation: We would like to present six cases of bull injury over a period of three years who reported to our EM. All six patients were admitted. Five out of six patients survived the hospital stay. Conclusion: Trauma sustained due to being hit by a large animal should be treated akin to a high velocity trauma and such a patient definitely warrants a period of observation even if the injuries are not life threatening. A high index of suspicion is needed for suspecting occult injuries. Fluid resuscitation and age of the patient are important considerations
Animal Injuries; a Case Series of Bull Induced Injuries in India
Introduction: Bull injuries are common in India. An injury by a bull is more common in rural and agriculture dependent regions of the country. The incident causing injury by a bull can be sports related or work related. Work related injuries are almost mostly seen in farmers. Case presentation: We would like to present six cases of bull injury over a period of three years who reported to our EM. All six patients were admitted. Five out of six patients survived the hospital stay. Conclusion: Trauma sustained due to being hit by a large animal should be treated akin to a high velocity trauma and such a patient definitely warrants a period of observation even if the injuries are not life threatening. A high index of suspicion is needed for suspecting occult injuries. Fluid resuscitation and age of the patient are important considerations
Complimentary electrostatics dominate T-cell receptor binding to a psoriasis-associated peptide antigen presented by human leukocyte antigen C∗06:02
Psoriasis is a chronic skin disease characterized by hyperproliferative epidermal lesions infiltrated by autoreactive T cells. Individuals expressing the human leukocyte antigen (HLA) C∗06:02 allele are at highest risk for developing psoriasis. An autoreactive T cell clone (termed Vα3S1/Vβ13S1) isolated from psoriatic plaques is selective for HLA-C∗06:02, presenting a peptide derived from the melanocyte-specific autoantigen ADAMTSL5 (VRSRRCLRL). Here we determine the crystal structure of this psoriatic TCR–HLA-C∗06:02 ADAMTSL5 complex with a stabilized peptide. Docking of the TCR involves an extensive complementary charge network formed between negatively charged TCR residues interleaving with exposed arginine residues from the self-peptide and the HLA-C∗06:02 α1 helix. We probed these interactions through mutagenesis and activation assays. The charged interface spans the polymorphic region of the C1/C2 HLA group. Notably the peptide-binding groove of HLA-C∗06:02 appears exquisitely suited for presenting highly charged Arg-rich epitopes recognized by this acidic psoriatic TCR. Overall, we provide a structural basis for understanding the engagement of melanocyte antigen-presenting cells by a TCR implicated in psoriasis while simultaneously expanding our knowledge of how TCRs engage HLA-C
Cyclodextrin Complexes of Reduced Bromonoscapine in Guar Gum Microspheres Enhance Colonic Drug Delivery
Here, we report improved solubility and enhanced colonic delivery of reduced bromonoscapine (Red-Br-Nos), a cyclic ether brominated analogue of noscapine, upon encapsulation of its cyclodextrin (CD) complexes in bioresponsive guar gum microspheres (GGM). Phase−solubility analysis suggested that Red-Br-Nos complexed with β-CD and methyl-β-CD in a 1:1 stoichiometry, with a stability constant (Kc) of 2.29 × 103 M−1 and 4.27 × 103 M−1. Fourier transforms infrared spectroscopy indicated entrance of an O−CH2 or OCH3−C6H4−OCH3 moiety of Red-Br-Nos in the β-CD or methyl-β- CD cavity. Furthermore, the cage complex of Red-Br-Nos with β-CD and methyl-β-CD was validated by several spectral techniques. Rotating frame Overhauser enhancement spectroscopy revealed that the Ha proton of the OCH3−C6H4−OCH3 moiety was closer to the H5 proton of β-CD and the H3 proton of the methyl-β-CD cavity. The solubility of Red-Br-Nos in phosphate buffer saline (PBS, pH ∼ 7.4) was improved by ∼10.7-fold and ∼21.2-fold when mixed with β-CD and methyl-β-CD, respectively. This increase in solubility led to a favorable decline in the IC50 by ∼2-fold and ∼3-fold for Red-Br-Nos−β-CD-GGM and Red-Br-Nos−methyl-β-CD-GGM formulations respectively, compared to free Red-Br-Nos−β-CD and Red-Br-Nos−methyl-β-CD in human colon HT-29 cells. GGM-bearing drug complex formulations were found to be highly cytotoxic to the HT-29 cell line and further effective with simultaneous continuous release of Red-Br-Nos from microspheres. This is the first study to showing the preparation of drug-complex loaded GGMS for colon delivery of Red-Br-Nos that warrants preclinical assessment for the effective management of colon cancer
Oral administration of bovine milk-derived extracellular vesicles induces senescence in the primary tumor but accelerates cancer metastasis
The concept that extracellular vesicles (EVs) from the diet can be absorbed by the intestinal tract of the consuming organism, be bioavailable in various organs, and in-turn exert phenotypic changes is highly debatable. Here, we isolate EVs from both raw and commercial bovine milk and characterize them by electron microscopy, nanoparticle tracking analysis, western blotting, quantitative proteomics and small RNA sequencing analysis. Orally administered bovine milk-derived EVs survive the harsh degrading conditions of the gut, in mice, and is subsequently detected in multiple organs. Milk-derived EVs orally administered to mice implanted with colorectal and breast cancer cells reduce the primary tumor burden. Intriguingly, despite the reduction in primary tumor growth, milk-derived EVs accelerate metastasis in breast and pancreatic cancer mouse models. Proteomic and biochemical analysis reveal the induction of senescence and epithelial-to-mesenchymal transition in cancer cells upon treatment with milk-derived EVs. Timing of EV administration is critical as oral administration after resection of the primary tumor reverses the pro-metastatic effects of milk-derived EVs in breast cancer models. Taken together, our study provides context-based and opposing roles of milk-derived EVs as metastasis inducers and suppressors
Vertical marginal discrepancies of metal castings obtained using different pattern materials: A scanning electron microscope study
Background and Objectives: Dental Casting involves various stages of processing, out of which any may affect the dimensional accuracy. The fit of a casting depends not only on the method of fabrication employed but also on the type of materials utilized. One important variable in the casting process is the type of pattern material employed. This study was carried out to determine and compare the effect of different pattern materials on the vertical marginal accuracy of complete cast crowns. Materials and Methods: A standardized metal master die simulating a prepared crown was used to prepare 60 models on which patterns were fabricated using Inlay Pattern Wax; Auto-polymerized Pattern Resin and Light Cured Modeling Resin and cast immediately. Castings of the patterns were subjected to analysis of marginal fit using a scanning electron microscope (SEM). Results: One-way ANOVA result showed a significant difference in the gap observed between the castings fabricated using the three types of pattern materials (P 0.05). Conclusion: With strict adherence to the principles of pattern fabrication and immediate casting, Inlay wax can still be the pattern material of choice to produce a casting with minimal marginal discrepancy with added advantages of being user friendly and cost effective
Bibliometric Analysis on Optimal Path Planning for Robots
Traversing from a given point to another while avoiding collision with obstacles is one of the key goals of path planning for robots [1]. Doing so in the most optimal way - the minimum total distance traveled by the robot is the objective of our study [2,3]. To do so, the algorithms implemented on the robots need to constantly map the environment or workspace in real time and subsequently create paths for the traversal in the environment without colliding with objects or obstacles [4,5]. Throughout the years, many researchers have conducted their own studies, researches and have proposed approaches for the path planning in robotics [6]. This paper surveys these approaches and presents them to the reader. This paper performs a bibliometric analysis of the relevant publications published from 2016 to 2021. The result shows that 1117 literature pieces were published in 160 journals which shows the publication diversity. There has been an increasing interest in the topic over the past few years. This paper provides some useful insights into this topic so the researchers in this field can better recognize the relevant researches and potential research partners
Hookah use among high school children in an Indian city
Context: Use of hookah is on the rise among youngsters. A growing body of evidence suggests that these children are experimenting with this form of tobacco. Aims: The study was carried out to know prevalence estimates of hookah use and factors associated with it among high school students.Settings and Design: This study adds to the current literature by providing prevalence estimates and factors associated with hookah use among high school students of Indore - a city in central India.Materials and Methods: A cross-sectional survey of 1000 students from high schools was conducted to find hookah users and factors associated with its use. Results: Hookah users in this study population were 7.6%. Most of them first learned about hookah from friends (63.2%). They usually smoked in hookah lounges (85.5%). These children believed that hookah was safer and more socially acceptable than cigarettes.Conclusions: Misperceptions of safety and popularity of hookah among the younger generation are cause for concern. Presence of hookah lounges should be a target for further regulation. Prevention activities are necessary to prevent this rising public health concern