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BACKGROUND: At present, combination antiretroviral therapy (cART) is the mainstay for the treatment of people living with HIV/AIDS. cART can suppress the viral load to a minimal level; however, the possibility of the emergence of full-blown AIDS is always there. In the latter part of the first decade of the 21st century, an HIV-positive person received stem cell transplantation (SCT) for treatment of his haematological malignancy. The patient was able to achieve remission of the haematological condition as well as of HIV following SCT. Thorough investigations of various samples including blood and biopsy could not detect the virus in the person's body. The person was declared to be the first cured case of HIV. LITERATURE SEARCH: Over the next decade, a few more similar cases were observed and have recently been declared cured of the infection. A comprehensive search was performed in PubMed, Cochrane library and Google Scholar. Four such additional cases were found in literature. DESCRIPTION & DISCUSSION: These cases all share a common proposed mechanism for the HIV cure, that is, transplantation of stem cells from donors carrying a homozygous mutation in a gene encoding for CCR5 (receptor utilized by HIV for entry into the host cell), denoted as CCR5â³32. This mutation makes the host immune cells devoid of CCR5, causing the host to acquire resistance against HIV. To the best of our knowledge, this is the first review to look at relevant and updated information of all cured cases of HIV as well as the related landmarks in history and discusses the underlying mechanism(s).
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Síndrome da Imunodeficiência Adquirida , Infecções por HIV , Transplante de Células-Tronco Hematopoéticas , Humanos , Mutação , Receptores CCR5/genéticaRESUMO
BACKGROUND: Trauma patients present to the emergency department with various injuries. Few injuries can be easily missed during the evaluation of polytrauma patients. We report one such rare injury in a trauma patient. CASE REPORT: We report the case of a 67-year-old man who presented to the emergency department with an alleged history of trauma. He reported severe pain in the lower abdomen, right hip, and right thigh. An x-ray study did not reveal any bony injury, and an extended focused assessment with sonography in trauma was also negative. Point-of-care ultrasound of his right thigh revealed the presence of a Morel-Lavallée lesion. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Morel-Lavallée lesions are post-traumatic, closed, degloving injuries that go unnoticed in many polytrauma patients. Emergency physicians should be mindful of this lesion because delay in diagnosis can result in significant complications.
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Traumatismo Múltiplo , Lesões dos Tecidos Moles , Masculino , Humanos , Idoso , Lesões dos Tecidos Moles/etiologia , Traumatismo Múltiplo/complicações , Coxa da Perna , Tomografia Computadorizada por Raios XRESUMO
OBJECTIVE: Viability of periodontal ligament fibroblast cells (PDFC) is one of the key factors in determining the success of replantation of avulsed teeth. Extra-oral time and transport media are closely related to the same. The present study aims to evaluate and compare the efficiency of Cornisol, Hank's balanced salt solution (HBSS) and normal saline in preserving the viability of PDFC. MATERIALS AND METHODS: The human PDFC were isolated from primary culture from freshly extracted human premolars. Effect of Cornisol, HBSS and normal saline on viability of isolated PDFC was assessed using standard MTT assay. The cells were exposed to the experimental solutions (Cornisol/HBSS/normal saline) for varying time points (30 min, 1 h, 24 h, 48 h and 96 h) and viability was determined by colorimetric MTT method by quantifying the amount of formazan crystal formed (optical density). Experiment was performed in triplicates and the data were subjected to statistical analysis. RESULTS: Statistical analysis was performed using the Kruskal-Wallis ANOVA with post hoc Bonferroni's test with a significance level of p value ≤.05. Cornisol ≥ HBSS > saline. CONCLUSION: Cornisol can be used as a storage media for avulsed teeth and is significantly more effective than HBSS in maintaining the periodontal ligament cell viability at tested time intervals.
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Soluções para Preservação de Órgãos , Avulsão Dentária , Animais , Sobrevivência Celular , Fibroblastos , Humanos , Leite , Ligamento PeriodontalAssuntos
Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Neoplasias Bucais , Humanos , Carcinoma de Células Escamosas/metabolismo , Neoplasias Bucais/genética , Neoplasias Bucais/metabolismo , Carcinoma de Células Escamosas de Cabeça e Pescoço , Fator 5 de Crescimento de FibroblastosRESUMO
Isoleucine is one of the branched chain amino acids that plays a major role in the energy metabolism of human beings and animals. However, detailed investigation of specific receptors for isoleucine has not been carried out because of the non-availability of a tool that can monitor the metabolic flux of this amino acid in live cells. This study presents a novel genetically-encoded nanosensor for real-time monitoring of isoleucine in living cells. This nanosensor was developed by sandwiching a periplasmic binding protein (LivJ) of E. coli between a fluorescent protein pair, ECFP (Enhanced Cyan Fluorescent Protein), and Venus. The sensor, named GEII (Genetically Encoded Isoleucine Indicator), was pH stable, isoleucine-specific, and had a binding affinity (Kd) of 63 ± 6 µM. The GEII successfully performed real-time monitoring of isoleucine in bacterial and yeast cells, thereby, establishing its bio-compatibility in monitoring isoleucine in living cells. As a further enhancement, in silico random mutagenesis was carried out to identify a set of viable mutations, which were subsequently experimentally verified to create a library of affinity mutants with a significantly expanded operating range (96 nM-1493 µM). In addition to its applicability in understanding the underlying functions of receptors of isoleucine in metabolic regulation, the GEII can also be used for metabolic engineering of bacteria for enhanced production of isoleucine in animal feed industries.
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Técnicas Biossensoriais , Sistemas Computacionais , Isoleucina/análise , Nanopartículas/química , Escherichia coli/citologia , Transferência Ressonante de Energia de Fluorescência , Concentração de Íons de Hidrogênio , Cinética , Ligantes , Viabilidade Microbiana , Simulação de Acoplamento Molecular , Mutação/genética , Saccharomyces cerevisiae/citologiaRESUMO
AIMS/HYPOTHESIS: Ceramides are sphingolipids that contribute to insulin resistance in preclinical studies. We hypothesised that plasma ceramides would be associated with body fat distribution, insulin resistance and incident type 2 diabetes in a multi-ethnic cohort. METHODS: A total of 1557 participants in the Dallas Heart Study without type 2 diabetes underwent measurements of metabolic biomarkers, fat depots by MRI and plasma ceramides by liquid chromatography-mass spectrometry. Diabetes outcomes were assessed after 7 years. Associations of body fat and insulin resistance with ceramides at baseline and of ceramides with incident diabetes outcomes were analysed. RESULTS: The cohort had a mean age of 43 years, with 58% women, 45% black participants and a mean BMI of 28 kg/m2. Total cholesterol levels were associated with all ceramides, but higher triacylglycerols and lower HDL-cholesterol and adiponectin were associated only with saturated fatty acid chain ceramides (p < 0.0003). After adjusting for clinical characteristics and total body fat, visceral adipose tissue was positively associated with saturated fatty acid ceramides (per SD, ß = 0.16 to 0.18) and inversely associated with polyunsaturated fatty acid ceramides (ß = -0.14 to -0.16, p < 0.001 for all). Lower-body subcutaneous fat showed an opposite pattern to that for visceral fat. HOMA-IR was positively associated with saturated (ß = 0.08 to 0.09, p < 0.001) and inversely with polyunsaturated ceramides (ß = -0.06 to -0.07, p < 0.05). Ceramides were not associated with incident type 2 diabetes after adjustment for clinical factors. CONCLUSIONS/INTERPRETATION: Plasma ceramides demonstrate a biologically complex relationship with metabolic and imaging indicators of dysfunctional adiposity. The role of ceramides in a shared pathway of metabolic dysfunction linking visceral adiposity and insulin resistance requires further investigation.
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Ceramidas/sangue , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/fisiopatologia , Resistência à Insulina/fisiologia , Gordura Intra-Abdominal/metabolismo , Adiposidade/fisiologia , Adulto , Índice de Massa Corporal , Cromatografia Líquida , Feminino , Humanos , Espectroscopia de Ressonância Magnética , Masculino , Espectrometria de Massas , Pessoa de Meia-IdadeRESUMO
OBJECTIVES: Vitamin D is essential for maintaining bone and mineral balance. This study aims to identify the most effective route for achieving optimal vitamin D levels (≥30â¯ng/mL) to support bone and mineral health. METHODS: In this open-label randomized trial, 132 participants aged 18-60 with initial serum vitamin D levels below 30â¯ng/mL were divided into three intervention groups: daily 800â¯I.U. oral tablet (Group A), weekly 60,000â¯I.U. oral sachet (Group B), and monthly 300,000â¯I.U. intramuscular injection (Group C). The study assessed changes in their serum vitamin D levels at six and 12 weeks. RESULTS: The monthly intramuscular (IM) group consistently had the highest mean vitamin D levels at six weeks 38.38(±9.953) (p<0.002) and 12 weeks 48.15(±7.71) (p<0.001). Vitamin D insufficiency was reduced to 34.8â¯% at six weeks (p=0.434) and 6.8â¯% at 12 weeks (p=0.002). Notably, 100â¯% of the monthly IM group achieved vitamin D sufficiency at 12 weeks. CONCLUSIONS: The monthly IM route demonstrated superior effectiveness compared to tablets and sachets at both the 6-week and 12-week points. A significantly larger number of monthly IM participants achieved vitamin D sufficiency compared to the other groups.
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INTRODUCTION: In view of limited treatment options (those too may fail) for Crohn's disease, cannabinoids have been tried as a therapeutic. However, their efficacy is not unequivocally established. This systematic review and meta-analysis was planned to pool data from randomised controlled trials (RCTs) evaluating effect of cannabinoids in Crohn's disease with an intention to take this uncertainty away. CONTENT: Following literature search in Medline, EMBASE, Scopus and Google Scholar databases, RCTs assessing the effect of cannabinoids on mild-to-moderate Crohn's disease in adults were included. Crohns' disease activity index (CDAI), QoL (Quality of life), number participants achieving full remission and serum CRP at eight weeks of treatment were the outcomes considered for meta-analysis. Quality of studies was assessed using Cochrane's RoB2 tool. Random effect model was applied for meta-analysis. Heterogeneity was assessed by Cochrane 'Q' statistics and I2 test. Sensitivity analysis was performed to identify the major contributor(s) to heterogeneity and assess robustness of the results. SUMMARY: Risk of bias for the four included studies varied from 'low' to 'some concern'. Overall effect estimate (SMD -0.92; 95â¯% CI -1.80, -0.03) indicated a statistically significant effect of cannabinoids as compared to control (p<0.05) on CDAI score. Effect of cannabinoids on rest of the outcome parameters was comparable to that of placebo. Magnitude of heterogeneity for different outcome parameters ranged from 'low' to 'substantial'. OUTLOOK: Cannabinoids were superior to placebo for favourably affecting the disease severity in terms of CDAI score. However, no statistically significant difference was found between the two for improving QoL, causing full disease-remission and reducing inflammatory markers. The results must be interpreted with caution in view of relatively high heterogeneity among the studies.
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Canabinoides , Doença de Crohn , Adulto , Humanos , Canabinoides/farmacologia , Canabinoides/uso terapêutico , Doença de Crohn/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
This study introduces mechanically induced phenomena such as standing, leaning, stacking, and interlocking behaviors in naturally twisted optical waveguiding microcrystals on a substrate. The microscale twisted crystal self-assembled from 2,4-dibromo-6-(((2-bromo-5-fluorophenyl)imino)methyl)phenol is flexible and emits orange fluorescence. Mechanistic analysis reveals the strain generated by the intergrowing orientationally mismatched nanocrystallites is responsible for the twisted crystal growth. The crystal's mechanical flexibility in the perpendicular direction to (001) and (010) planes can be attributed to intermolecular Br···Br, F···Br, and π···π stacking interactions. Through a systematic process involving step-by-step bending and subsequent optical waveguiding experiments at each bent position, a linear relationship between optical loss and mechanical strain is established. Additionally, the vertical standing and leaning of these crystals at different angles on a flat surface and the vertical stacking of multiple crystals reveal the three-dimensional aspects of organic crystal waveguides, introducing light trajectories in a 3D space. Furthermore, the integration of two axially interlocked twisted crystals enables the coupling of polarization rotation along their long axis. These crystal dynamics expand the horizons of crystal behavior and have the potential to revolutionize various applications, rendering these crystals invaluable in the realm of crystal-related science and technology.
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Purpose: This study explores the current knowledge and overall awareness of the faculty at an Apex institute about the use and difficulties of scenario-based multiple-choice questions (SB-MCQs), short-answer questions (SB-SAQs), and modified essay questions (SB-MEQs) in the assessment of the undergraduate and postgraduate students. Objectives: To assess faculty perception of awareness and use of SB-MCQs, SB-SAQs, and SB-MEQs and to understand the challenges encountered while designing scenario-based questions (SBQs) and the ways to overcome them. Study Procedure: The tool used for data collection was a Google form questionnaire designed with a total of 16 questions-12 Likert-scale format items and four open-ended questions. The quantitative data collected as a response to close-ended questions was analyzed by descriptive statistics and percentage values. For qualitative data, thematic analysis was done for open-ended questions. Conclusion: The study showed that the faculty has the motivation and agreeability to switch over from traditional questions to scenario-based questions but constant training in the form of regular faculty development programs and workshops is required for its effective implementation. On the administrative level, challenges like lack of sufficient faculty and proper inter-departmental integration for designing scenarios must be addressed. Supplementary Information: The online version contains supplementary material available at 10.1007/s40670-024-02052-6.
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Objective: Surgical site infection (SSI) is an unsettled complication seen in any surgery. The aim of this study is to assess the rate of postoperative SSIs between total laparoscopic hysterectomy (TLH) and total abdominal hysterectomy (TAH). Can the rate of SSI be reduced with the use of a laparoscopic mode of hysterectomy over abdominal? Materials and Methods: It was a retrospective comparative study. The study was conducted in the obstetrics and gynecology department at a tertiary care center from June 2016 to March 2020. A total of 300 patients who underwent hysterectomy either via laparoscopic or abdominal route were included in the study. They were subdivided into two groups: a total of 167 underwent TLH (Group 1) and 133 had TAH (Group 2). The results were compared. It included the age and body mass index of the patient, indication of surgery, size of the uterus, intraoperative blood loss, postoperative SSIs, duration of hospital stay, and readmission rates. Results: It was found a high rate of SSI in TAH (82.4% vs. 17.6%, P < 0.001, Cramer's V-0.18), the operative time taken (75 ± 25 min vs. 128 ± 52 min, P < 0.001), and the mean blood loss during TLH (110 ± 30 ml vs. 160 ± 116 ml, P < 0.001) was found significant for patients. The hospital stay after TLH was found to be significantly shorter (4 ± 2.47 days vs. 7 ± 2.43, P < 0.001). Conclusion: TLH has improved the psychological, physical, and financial burden on the health care department. Thus, it has proved a preferred route over TAH.
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Crush injuries to the foot have become increasingly prevalent in contemporary settings, primarily arising from incidents such as the impact of large objects falling onto the foot or involvement in traffic accidents. The complexity of treating these injuries is compounded by the intricate anatomy of the foot. In specific scenarios, the implementation of an integrated management approach could prove advantageous. In this report, we depict the case of a 23-year-old male who visited the Shalya OPD with a wound on his left foot caused by trauma. The wound covered the medial portion of the foot, involving the dorsal area, and measured roughly 20 cm by 9 cm and was unable to walk. We successfully managed the case by adopting an integrative approach. The Ayurvedic treatment included Panchavalkala kashaya for wound irrigation, as well as oral administration of Amalaki rasayana, Triphala guggulu, Shatavari churna and Ashwagandha churna. Jatyadi taila was topically applied. For the first seven days, in addition to these ayurvedic medications, we also employed analgesics and antibiotics to treat infection and pain. To accomplish early closure, we employed a split-thickness skin graft after sufficient granulation tissue had appeared. The wound was completely healed within three months and the patient was able to walk freely without any support. The combined approach yielded a promising result in this case.
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In daily practice, clinicians come across certain radiographic abnormalities which may or may not be asymptomatic. This abstract discusses radiographic abnormalities encountered by clinicians in daily practice, some of which resemble endodontic lesions. Prompt attention is crucial as these lesions can be benign or malignant. The article emphasizes the importance of differential diagnosis for accurate identification of periapical pathosis.
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The widespread utilization of personal protective equipment (PPE) during the COVID-19 pandemic has been crucial for reducing transmission risk among healthcare workers (HCWs) and the public. However, the extensive use of PPE has brought about potential adverse reactions, particularly among HCWs. This study aims to investigate the prevalence and characteristics of adverse skin reactions associated with PPE use among different categories of HCWs, including faculty, residents, and nursing officers (NOs), in a dedicated tertiary care COVID-19 hospital. The study design was a hospital-based cross-sectional analytical study conducted over one month, involving a total of 240 participants. The participants were required to complete a pre-tested semi-structured questionnaire that covered demographic information, PPE-related data, preventive measures, observed reactions, and self-management strategies. Results indicated that adverse skin reactions were common among HCWs, with reactions reported by all participants. The most commonly used PPE included N95 masks, goggles, gloves, face shields, isolation gowns, and medical protective clothing. Excessive sweating (60% residents, 21.1% NOs, and 16.25% faculties), facial rash, dry palms (>70% of HCWs), and itching were among the most prevalent adverse reactions. Urticarial lesions (28.5% among NOs), pressure marks and pain (100% on the cheek among all HCWs), fungal infections (18.5% among residents at the web space of fingers), and skin breakdown were also reported. Factors such as age, gender, pre-existing skin problems, and oily/acne-prone skin history were found to be significantly associated with adverse skin reactions. In conclusion, the findings highlight the common adverse reactions reported by HCWs during the use of different PPEs. Certain steps taken by HCWs for the prevention of adverse reactions due to PPE emphasize the importance of tailored preventive measures and strategies to mitigate these adverse reactions, such as proper PPE selection, well-fitting equipment, regular breaks, and appropriate skincare practices. These insights contribute to the development of guidelines for optimal PPE usage and support the well-being of HCWs in their essential roles.
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The microbial desalination cell (MDC) is a bio-electrochemical system that exhibits the ability to oxidize organic compounds, produce energy, and decrease the saline concentrations within the desalination chamber. The selective removal of ions from the desalination chamber is significantly influenced by the anion and cation exchange membranes. In this study, a three-chamber microbial desalination cell was developed to treat seawater using a synthesize Fe3O4 magnetite nanoparticle (MNP)-modified anode. The impact of different performance parameters, such as temperature, pH, and concentrations of NPs, has been investigated in order to assess the performance of three-chamber MDCs in terms of energy recovery and salt removal. The evaluation criteria of the system included multiple factors such as chemical oxygen demand (COD), Coulombic efficiency (CE), desalination efficiency, as well as system aspects including voltage generation and power density. The highest COD% removal efficiency was 74% at 37 °C, pH = 7, and 30 g/L salt concentration with an optimized NPs concentration of 2.0 mg/cm2 impregnated on anode. The maximum Coulombic efficiency was 10.3% with the maximum power density of 4.3 W/m3. The effect of the nanoparticle concentration impregnated on the anode was clarified by the primary factor of analysis. This research has revealed consistent patterns in the enhancement of voltage generation, COD, and Coulombic efficiencies when incorporating higher concentrations of nanoparticles on the anode at a certain point.
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Here, we report a case where the lack of pelvic examination in a puerperium patient led to a delay in diagnosis and appropriate management of a large posterior vaginal wall hematoma for about a month. The patient had a history of difficult vaginal breech delivery of a macrosomic asphyxiated baby 28 days prior, following which, she started having gradually increasing distension of the abdomen, inability to void urine and pass stools by herself, and a history of fever on and off. Her family members took her to a private hospital for a consultation, where she was examined and assessed. However, a pelvic examination was not done. A CT scan of the abdomen and pelvis showed a large organized hematoma of size 13.6cm×11.1cm×10.5cm with a volume of 802 ml in the pouch of Douglas. Following this report, diagnostic laparoscopy was done on day 10 of puerperium where a large hematoma was seen beneath the peritoneum in the pouch of Douglas without any intraperitoneal collection. As the hematoma was not seen to be expanding, conservative management was done with 5 units of blood transfusion and antibiotic coverage, and the patient was discharged. However, the patient's symptoms were not relieved due to which she presented to us on day 28 of puerperium with the same symptoms. On pelvic examination, purulent, foul-smelling discharge was present in the vagina, and a huge tense bluish bulge was seen in the posterior vaginal wall more towards the right side obliterating the whole vagina. After taking informed consent and with proper pre-operative preparations of laparotomy, the hematoma was drained vaginally, and approximately 1300 ml of blood and clots were removed, following which, the patient had a speedy recovery and relief of her symptoms.
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Artificial intelligence (AI) has transformed pharmacological research through machine learning, deep learning, and natural language processing. These advancements have greatly influenced drug discovery, development, and precision medicine. AI algorithms analyze vast biomedical data identifying potential drug targets, predicting efficacy, and optimizing lead compounds. AI has diverse applications in pharmacological research, including target identification, drug repurposing, virtual screening, de novo drug design, toxicity prediction, and personalized medicine. AI improves patient selection, trial design, and real-time data analysis in clinical trials, leading to enhanced safety and efficacy outcomes. Post-marketing surveillance utilizes AI-based systems to monitor adverse events, detect drug interactions, and support pharmacovigilance efforts. Machine learning models extract patterns from complex datasets, enabling accurate predictions and informed decision-making, thus accelerating drug discovery. Deep learning, specifically convolutional neural networks (CNN), excels in image analysis, aiding biomarker identification and optimizing drug formulation. Natural language processing facilitates the mining and analysis of scientific literature, unlocking valuable insights and information. However, the adoption of AI in pharmacological research raises ethical considerations. Ensuring data privacy and security, addressing algorithm bias and transparency, obtaining informed consent, and maintaining human oversight in decision-making are crucial ethical concerns. The responsible deployment of AI necessitates robust frameworks and regulations. The future of AI in pharmacological research is promising, with integration with emerging technologies like genomics, proteomics, and metabolomics offering the potential for personalized medicine and targeted therapies. Collaboration among academia, industry, and regulatory bodies is essential for the ethical implementation of AI in drug discovery and development. Continuous research and development in AI techniques and comprehensive training programs will empower scientists and healthcare professionals to fully exploit AI's potential, leading to improved patient outcomes and innovative pharmacological interventions.
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Maxillary sinus odontogenic keratocyst (OKC) is very rare and occupies less than 1% of the total OKC cases reported in the literature. OKCs have characteristic features that are unique compared to other cysts of the maxillofacial region. Considering their peculiar behaviour, varied origin, debated development, discourse treatment modalities, and high recurrence rate, OKCs have been a subject of interest for various oral surgeons and pathologists globally. This case report presents an unusual case of invasive maxillary sinus OKC into the orbital floor, pterygoid plates, and hard palate in a 30-year-old female. The case report confers that cystic maxillary sinus lesions should always be treated very extensively irrespective of the nature of the lesion as the site makes it highly susceptible to secondary infection and recurrence. The case also establishes a set of imaging modalities and specific treatment approaches to be followed for maxillary sinus OKC based on the literature of all the previous cases reported.
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PURPOSE: There must be a perfect balance between Food and Dietary supplements (DS) to ensure optimal well-being. The purpose of this study was to evaluate the impact of a webinar on the change in knowledge and attitude about the role of vitamins, minerals and DS among medical and nursing undergraduates so that they could bring about a positive change in popular practices, as well-informed Health Care Professionals (HCPs). MATERIALS AND METHODS: The study was a cross-sectional analytical study comprising 12 knowledge and 11 attitude questions administered to medical and nursing undergraduates with the help of semi-structured and pre-validated google form both before and after a webinar explaining the role of key nutrients and also the evidence and recommendations surrounding DS. Data were analyzed using STATA.12 to assess the impact of the webinar. RESULTS: There were 415 participants, with 265 medical and 150 nursing students. There was a significant improvement both in the knowledge (4.95 (±1.45), 7.76 (±1.69) and attitude scores (pre-webinar mean score 31.8 (±5.57) post-webinar mean score 27.7 (±4.90))of the participants after the webinar. An overall positive correlation before the webinar changed to a more significant negative correlation, indicating a positive impact of the webinar (0.0054-0.0701). CONCLUSION: The study suggests that continuing education informing various HCPs and undergraduate students about the absolute necessity of a diet rich in nutrients, vitamins, minerals, and probiotics is the need of the hour. Additionally, the efficacy and safety concerns, appropriate indications and dosages of various DS should be adequately stressed so that informed decisions can be made. Such training programs might have a far-reaching impact on the nutrition choices of the population at large.