Publications by authors named "Muralidhar"

Purpose: To investigate the impact of blood pressure (BP) on rates of retinal nerve fiber layer (RNFL) thinning in glaucomatous eyes with focal ischemic (FI) versus generalized enlargement (GE) optic disc phenotypes.

Design: Prospective cohort study.

Participants: The study included 122 eyes from 101 patients diagnosed with primary open-angle glaucoma.

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Background: Globally, construction jobs are associated with serious occupational safety and health (OSH) risks. In large construction projects, managing OSH risks is challenging due to a multitude of factors, and it is important to have sound management strategies and innovative solutions to tackle these ever-evolving OSH risks. Safety surveillance plays a pivotal role in accident prevention in the construction industry.

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Purpose: To report a case of bilateral primary vitreoretinal lymphoma (PVRL) masquerading as endophthalmitis in a patient with a history of bilateral cataract surgery and COVID-19.

Observation: A 60-year-old male patient presented with diminution of vision in both the eyes. There was a history of bilateral cataract surgery done 2 months back at a gap of one week and COVID-19 infection treated with high dose systemic corticosteroids.

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Background: We report a unique case of Stenotrophomonas maltophilia-related pediatric endogenous endophthalmitis.

Case Presentation: A 10-year-old male presented with redness and loss of vision in his right eye for two weeks. Clinical examination and ultrasound features were suggestive of endophthalmitis, most likely endogenous due to the absence of a history of trauma or intraocular intervention.

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Background: Homelessness is a deeply ingrained aspect of our culture. It has a detrimental influence on people of all ages' physical and mental well-being, child development, academic success and the establishment and upkeep of families. Homelessness and mental illness have a reciprocal relationship that makes them two interrelated social issues that affect people's ability to function and communities all over the world.

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We report a rare case of late-onset vitamin K deficiency bleeding in a 3-month-old boy who presented with orbital compartment syndrome due to massive bleed in the right orbit. The coagulation profile was highly abnormal. The patient was treated with vitamin K injections, following which the coagulation profile normalized.

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Objectives: In 2016, the Department of Veterans Affairs (VA) and the Department of Energy (DOE) established an Interagency Agreement (IAA), the Million Veteran Program-Computational Health Analytics for Medical Precision to Improve Outcomes Now (MVP-CHAMPION) research collaboration.

Materials And Methods: Oversight fell under the VA Office of Research Development (VA ORD) and DOE headquarters. An Executive Committee and 2 senior scientific liaisons work with VA and DOE leadership to optimize efforts in the service of shared scientific goals.

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Cholecystoenteric fistula is a rare complication of cholelithiasis, occurring in 3%-5% of patients with cholelithiasis. The symptoms are typically minimal and vague, with either acute or subacute presentations, rarely leading to bowel obstruction, and occasionally manifesting as chronic abdominal pain. In this case, a male patient in his early 30s presented with epigastric and right hypochondrial pain.

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In the USA, Black men are approximately twice as likely to be diagnosed with and to die of prostate cancer than white men. In the UK, despite Black men having vastly different ancestral contexts and health-care systems from Black men in the USA, the lifetime risk of being diagnosed with prostate cancer is two-to-three times higher among Black British men than among white British men and Black British men are twice as likely to die of prostate cancer as white British men. Examination of racial disparities in prostate cancer in the USA and UK highlights systemic, socio-economic and sociocultural factors that might contribute to these differences.

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Article Synopsis
  • * Out of 876 providers, only 10% were aware of their patients' PGx test status, with 64% not having ordered any PGx tests in the past year.
  • * Most providers (55%) believed PGx testing could be valuable for pain medication prescriptions, and 51% indicated a need for local experts to assist with PGx testing, highlighting areas for improvement in the Veterans Health Administration's approach to pain management.
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Lung cancer remains the leading cause of cancer mortality, despite declining smoking rates. Previous lung cancer GWAS have identified numerous loci, but separating the genetic risks of lung cancer and smoking behavioral susceptibility remains challenging. Here, we perform multi-ancestry GWAS meta-analyses of lung cancer using the Million Veteran Program cohort (approximately 95% male cases) and a previous study of European-ancestry individuals, jointly comprising 42,102 cases and 181,270 controls, followed by replication in an independent cohort of 19,404 cases and 17,378 controls.

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Article Synopsis
  • The study focused on identifying self-reported military and occupational exposures among Veterans, such as Agent Orange and chemical warfare agents, through the Million Veteran Program, which gathers health data from over a million US Veterans.
  • Over 500,000 participants detailed their military experiences, revealing significant differences in reported exposures based on factors like service era, combat deployment, and occupation, with Vietnam-era Veterans primarily reporting Agent Orange exposure.
  • The findings indicate that exposure patterns varied notably by demographics, with combat-related occupations showing higher exposure reports compared to healthcare roles, aligning with previous research on US military Veterans.
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A rare instance of extravascular lipomas located over the subclavian vein in a woman in her early 60s presented unique diagnostic and therapeutic challenges due to their close proximity to critical structures. Lipomas, which are the most commonly occurring benign soft tissue tumours, are typically composed of mature adipocytes. Although lipomas can develop in any region of the body, they are most commonly found in the subcutaneous tissues of the trunk and proximal limbs.

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Over the past few decades, VEGF-targeted antiangiogenic therapy for cancers has gained increasing attention. Nevertheless, there are still several limitations such as the potential resistance mechanisms arising in cancer cells against these therapies and their potential adverse effects. These limitations highlight the need for novel anti-angiogenesis molecules and better understanding of the mechanisms of tumor angiogenesis.

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Large-scale genome-wide association studies of schizophrenia have uncovered hundreds of associated loci but with extremely limited representation of African diaspora populations. We surveyed electronic health records of 200,000 individuals of African ancestry in the Million Veteran and All of Us Research Programs, and, coupled with genotype-level data from four case-control studies, realized a combined sample size of 13,012 affected and 54,266 unaffected persons. Three genome-wide significant signals - near , , and - are the first to be independently identified in populations of predominantly African ancestry.

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This case report illuminates an instance of Ludwig's Angina in a 16-year-old male patient with concurrent Influenza A. Ludwig's Angina, a potentially fatal, rapidly spreading cellulitis, primarily affects the submandibular and sublingual spaces. This case emphasizes the importance of early detection, immediate intervention, and multidisciplinary management to prevent life-threatening complications.

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Objectives: The primary aim is to determine the accuracy of contrast-enhanced computed tomography (CT) in evaluation of depth of invasion (DOI) and detection of cervical node metastasis. We also analysed the relation between radiographic DOI (rDOI) and cervical lymph node metastasis.

Materials And Methods: We have retrospectively reviewed 201 oral squamous cell carcinoma (SCC) patients.

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Background: India has the highest number of estimated deaths from cervical cancer globally, with most cases attributed to Human papillomavirus (HPV). The World Health Organization recommends primary HPV vaccination for girls ages 9-14, with catch-up vaccination for young women ≥ 15 if feasible. India authorized a new, inexpensive HPV vaccine in 2022; given anticipated vaccine expansion, we conducted a mixed-methods study exploring acceptability of HPV catch-up vaccination for young emerging adult women in rural Mysore, India.

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Coherent optical detection is a powerful technique for characterizing a wide range of physical excitations. Here, we use two optical approaches (fundamental and parametric pumping) to microscopically characterize the high-frequency auto-oscillations of single and multiple nano-constriction spin Hall nano-oscillators (SHNOs). To validate the technique and demonstrate its robustness, we study SHNOs made from two different material stacks, NiFe/Pt and W/CoFeB/MgO, and investigate the influence of both the RF injection power and the laser power on the measurements, comparing the optical results to conventional electrical measurements.

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Context: Concerns about brolucizumab's (Pagenax®) association with intraocular inflammation (IOI) limit its use despite its cost-effectiveness and efficacy. This multicentric study analyzes IOI incidence across 21 tertiary eyecare centers in India since its introduction in October 2020.

Purpose: To determine the real-world incidence rate of IOI in Indian patients secondary to intravitreal brolucizumab across 21 tertiary eye care centers in India.

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Ossifying fibromyxoid tumor (OFMT) is a rare, slow-growing, mesenchymal tumor with intermediate malignant potential, predominantly affecting middle-aged individuals. Histologically, it presents as a fibrous capsule or pseudocapsule, with a complete or incomplete lamellar bone shell surrounding oval/polygonal cells within a fibromyxoid matrix. Advances in immunohistochemistry have facilitated OFMT identification, with S100 protein expression and INI-1 loss being notable features.

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Article Synopsis
  • Accurate forecasts improve public health responses to seasonal influenza, with 26 teams providing predictions for hospital admissions in 2021-22 and 2022-23.
  • Six out of 23 models performed better than the baseline in 2021-22, while 12 out of 18 models did so in 2022-23, with the FluSight ensemble being highly ranked in both seasons.
  • Despite its accuracy, the FluSight ensemble and other models struggled with longer forecast periods, especially during times of rapid change in influenza patterns.
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Article Synopsis
  • Human genetic studies often lack diversity, which limits understanding of disease causes and health disparities.
  • The Department of Veterans Affairs Million Veteran Program analyzed data from a diverse group of 635,969 veterans, revealing 13,672 genomic risk loci, with significant findings particularly from non-European populations.
  • The research identified causal variants across 613 traits, showing that genetic similarities exist across populations and emphasizing the importance of including underrepresented groups in genetic research.
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Background: Gonorrhea is a significant cause of morbidity among sexually active population. Young adults and adolescents have a high risk of contracting sexually transmitted infections (STIs) due to behavioral, biological, and cultural factors fuelling the epidemic among them. The Centers for Disease Control recommends annual STI screening for sexually active individuals under twenty-five and those at higher risk.

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