148 results match your criteria: "18 College[Affiliation]"

Bacterial clustering biomaterials as anti-infective therapies.

Biomaterials

May 2025

Department of Pharmacy and Pharmaceutical Sciences, National University of Singapore, 18 Science Drive 4, Singapore, 117559, Singapore. Electronic address:

In Nature, bacterial clustering by host-released peptides or nucleic acids is an evolutionarily conserved immune defense strategy employed to prevent adhesion of pathogenic microbes, which is prerequisite for most infections. Synthetic anti-adhesion strategies present as non-lethal means of targeting bacteria and may potentially be used to avoid resistance against antimicrobial therapies. From bacteria-agglutinating biomolecules discovered in nature to synthetic designs involving peptides, cationic polymers and nanoparticles, the modes of actions appear broad and unconsolidated.

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Correlation of gut microbial diversity to sight-threatening diabetic retinopathy.

BMC Microbiol

September 2024

Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Sankara Nethralaya, 18 College Road, Chennai, 600 006, Tamil Nadu, India.

Purpose: To determine the association of gut microbiome diversity and sight-threatening diabetic retinopathy (STDR) amongst patients with pre-existing diabetes.

Methods: A cross-sectional study was performed, wherein 54 participants selected in total were placed into cases cohort if diagnosed with STDR and those without STDR but had a diagnosis of diabetes mellitus of at least 10-year duration were taken as controls. Statistical analysis comparing the gut microbial alpha diversity between cases and control groups as well as patients differentiated based on previously hypothesized Bacteroidetes/Firmicutes(B/F) ratio with an optimal cut-off 1.

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Infectious optic neuropathy (ION), how to recognise it and manage it.

Eye (Lond)

August 2024

Department of Neuro-Ophthalmology, Sankara Nethralaya - A Unit of Medical Research Foundation, 18 College Road, Nungambakkam, Chennai, 600 006, India.

Optic neuropathy can be of infectious or non-infectious/idiopathic aetiology. Many infectious organisms can cause optic neuropathy that can be of varied presentation including papillitis, retrobulbar optic neuritis, neuroretinitis, and optic perineuritis. Detailed history, ocular, systemic/neurologic examination along with appropriate laboratory evaluation can help clinicians to identify the infectious agent causing optic neuropathy.

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Surgical management of a case of double optic disc pits with maculopathy.

Indian J Ophthalmol

February 2024

Department of Vitreoretinal Diseases, Medical Research Foundation, Sankara Nethralaya, 18 College Road, Chennai, Tamil Nadu, India.

Background: Double optic disc pit maculopathy is a rare entity. It can be difficult to manage because of excessive leakage and chronic maculopathy.

Purpose: To describe surgical management in a case of double optic disc pits with maculopathy.

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Utilizing a novel high-resolution malaria dataset for climate-informed predictions with a deep learning transformer model.

Sci Rep

December 2023

Alliance for Collaboration on Climate & Earth Systems Science (ACCESS), CSIR, Lower Hope Road, Rosebank, 770, Cape Town, South Africa.

Climatic factors influence malaria transmission via the effect on the Anopheles vector and Plasmodium parasite. Modelling and understanding the complex effects that climate has on malaria incidence can enable important early warning capabilities. Deep learning applications across fields are proving valuable, however the field of epidemiological forecasting is still in its infancy with a lack of applied deep learning studies for malaria in southern Africa which leverage quality datasets.

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Understanding pseudopapilledema on spectral domain optical coherence tomography.

Indian J Ophthalmol

November 2023

Department of Optometry, Sankara Nethralaya, 18 College Road, Chennai, Tamil Nadu, India.

Article Synopsis
  • - The study explores the occurrence of optic nerve head drusen (ONHD), peripapillary hyperreflective ovoid mass-like structures (PHOMS), and horizontal hyperreflective lines (HHL) in patients diagnosed with pseudopapilledema using enhanced depth imaging spectral domain optical coherence tomography (EDI SD OCT).
  • - A total of 48 eyes from 27 patients with pseudopapilledema were compared to 20 control eyes, revealing that ONHD appeared in 39.48% of eyes, PHOMS in 64.6%, and HHL in 39.48%, with significant statistical results.
  • - The findings indicate that PHOMS are more prevalent than ONHD and HHL in patients
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Surgical outcomes in aggressive retinopathy of prematurity (AROP)-related retinal detachments.

Indian J Ophthalmol

November 2023

Shri Bhagwan Mahavir Vitreo-Retinal Services, Sankara Nethralaya, Medical Research Foundation, 18 College Road, Chennai, Tamil Nadu, India.

Article Synopsis
  • AROP is a severe form of retinopathy of prematurity that progresses rapidly without following the usual stage progression, prompting this study to assess surgical outcomes for affected detachments.
  • The study analyzed data from 43 eyes of 26 premature babies, where most underwent primary interventions like laser treatments before micro-incision vitrectomy surgery; results showed various progression rates to advanced stages of disease.
  • The findings indicated that while surgeries yielded favorable anatomical outcomes in 58% of cases, eyes that underwent lens-sparing vitrectomy had significantly better visual outcomes compared to those that had lens removal.
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As human activities release increasingly more fossil fuel-derived emissions directly into the atmosphere, terrestrial, aquatic, or marine ecosystems, the biomagnification and bioaccumulation of toxic metals in seafood is an ever more pressing concern. As apex predators, sharks are particularly susceptible to biomagnification and bioaccumulation. The consumption of shark fin is frequent throughout Asia, and their ingestion represents a pathway through which human exposure to potentially unsafe levels of toxic metals can occur.

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MAD2 is a spindle assembly checkpoint protein that participates in the formation of mitotic checkpoint complex, which blocks mitotic progression. RNF8, an established DNA damage response protein, has been implicated in mitotic checkpoint regulation but its exact role remains poorly understood. Here, RNF8 proximity proteomics uncovered a role of RNF8-MAD2 in generating the mitotic checkpoint signal.

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Governance is a key component for implementing sustainable development (SD) initiatives in university teaching, research, and projects. This line of thinking also applies to implementing the United Nations (UN) sustainable development goals (SDGs). Despite the role of governance in guiding processes related to the SDGs, few studies have examined these relations in an integrative manner in higher education.

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The rapid development of antimicrobial resistance due to broad antibiotic utilisation in the healthcare and food industries and the non-availability of novel antibiotics represents one of the most critical public health issues worldwide. Current advances in nanotechnology allow new materials to address drug-resistant bacterial infections in specific, focused, and biologically safe ways. The unique physicochemical properties, biocompatibility, and wide range of adaptability of nanomaterials that exhibit photothermal capability can be employed to develop the next generation of photothermally induced controllable hyperthermia as antibacterial nanoplatforms.

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Article Synopsis
  • The Dry Eye Module (DEM) is a software designed to improve the evaluation and documentation of dry eye conditions, standardizing diagnostic language and generating comprehensive reports based on established algorithms.
  • It facilitates data collection across different centers, creates customized referral letters for specialists, and visually presents crucial eye parameters and trends over time.
  • By addressing gaps in uniform reporting and enhancing communication between patients and healthcare providers, DEM aims to fulfill the unmet needs in dry eye assessment and follow-up care.
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Purpose: Infectious keratitis, especially viral keratitis (VK), in resource-limited settings, can be a challenge to diagnose and carries a high risk of misdiagnosis contributing to significant ocular morbidity.

We Aimed To: employ and study the application of artificial intelligence-based deep learning (DL) algorithms to diagnose VK.

Methods: A single-center retrospective study was conducted in a tertiary care center from January 2017 to December 2019 employing DL algorithm to diagnose VK from slit-lamp (SL) photographs.

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Purpose: To review surgical options, techniques, and outcomes of anterior staphyloma repair done following trauma and surgery.

Methods: This was a retrospective case study of patients who underwent staphyloma repair with scleral or tibial periosteal patch grafts following trauma and surgery with a minimum follow-up of 3 months postoperatively. Preoperative risk factors, choice of graft materials, surgical details, and outcomes in terms of graft uptake and tectonic integrity were analyzed.

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Structural and functional changes among diabetics with no diabetic retinopathy and mild non-proliferative diabetic retinopathy using swept-source optical coherence tomography angiography and photopic negative response.

Doc Ophthalmol

October 2022

Department of Vitreo-Retinal Services, Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Medical Research Foundation, 18 College Road, Nungambakkam, Chennai, 600 006, India.

Article Synopsis
  • The study aimed to evaluate structural and functional changes in diabetics without retinopathy (NDR) and those with mild non-proliferative diabetic retinopathy (NPDR) using advanced imaging and electroretinography techniques.
  • Researchers conducted a case-control study involving 88 participants, including diabetics and age-matched controls, and found significant reductions in vessel density in mild NPDR compared to controls, while NDR showed no notable differences.
  • Results indicated that the photopic negative response (PhNR) was a sensitive indicator of early functional changes in diabetic retinopathy, reflecting more pronounced functional impairments in NDR than vascular changes visible on imaging.
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Background: To report the role of Polymerase Chain Reaction in confirming the diagnosis of presumed Mycobacterium Tuberculosis (MTB) Intermediate Uveitis.

Method: Retrospective analysis of 22 eyes of 14 cases of presumed tubercular intermediate uveitis wherein intraocular fluid was tested for MTB DNA by Nested & Real-time PCR, based on clinical suspicion of tubercular aetiology. QuantiFERON TB gold test and High-Resolution CT Chest were done.

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Digital Eye Strain- A Comprehensive Review.

Ophthalmol Ther

October 2022

Department of Ophthalmology, Regional Institute of Ophthalmology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.

Digital eye strain (DES) is an entity encompassing visual and ocular symptoms arising due to the prolonged use of digital electronic devices. It is characterized by dry eyes, itching, foreign body sensation, watering, blurring of vision, and headache. Non-ocular symptoms associated with eye strain include stiff neck, general fatigue, headache, and backache.

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Pythium insidiosum (PI) is an oomycete, a protist belonging to the clade Stramenopila. PI causes vision-threatening keratitis closely mimicking fungal keratitis (FK), hence it is also labeled as "parafungus". PI keratitis was initially confined to Thailand, USA, China, and Australia, but with growing clinical awareness and improvement in diagnostic modalities, the last decade saw a massive upsurge in numbers with the majority of reports coming from India.

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Purpose: To correlate optical coherence tomography (OCT)-based morphological patterns of diabetic macular edema (DME), biomarkers and grade of diabetic retinopathy (DR) in patients with various stages of chronic kidney disease (CKD) secondary to diabetes.

Design: Multicentric retrospective cross-sectional study was conducted at seven centers across India.

Methods: Data from medical records of patients with DME and CKD were entered in a common excel sheet across all seven centers.

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Background: Prostate-specific antigen (PSA) is a commonly used test to detect prostate cancer. Attention has mostly focused on the use of PSA in screening asymptomatic patients, but the diagnostic accuracy of PSA for prostate cancer in patients with symptoms is less well understood.

Methods: A systematic database search was conducted of Medline, EMBASE, Web of Science, and the Cochrane library.

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Histopathological, immunohistochemical and molecular biologic study of an enucleated specimen of a case of Eales' disease.

J Ophthalmic Inflamm Infect

September 2021

Uvea Department, Medical Research Foundation, Sankara Nethralaya, 18 College Road, Tamilnadu, 600006, Chennai, India.

Article Synopsis
  • * A case study was conducted on a 29-year-old male with Eales' disease affecting both eyes and continuous inflammation, leading to the removal of one eye for examination.
  • * Research indicates that Eales' disease may be driven by T cells and could be triggered by DNA from mycobacterial tuberculosis, but additional studies are necessary to verify these findings.
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Choroidal neovascularization in 111 eyes of children and adolescents.

Int Ophthalmol

January 2022

Department of Uvea, Sankara Nethralaya, 18 College Road, Chennai, Tamilnadu, 600006, India.

Purpose: To describe the clinical features, management, and outcomes of choroidal neovascularization (CNV) in children less than 18 years of age.

Methods: This was a retrospective, case control study of 111 eyes of 96 patients. CNV was clinically diagnosed in all patients.

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Preliminary experience & rationale of primary allo Simple Limbal Epithelial Transplantation (SLET) following surgical excision of Ocular Surface Tumors.

Ocul Surf

October 2021

CJ Shah Cornea Services, Dr G Sitalakshmi Memorial Clinic for Ocular Surface Disorders, Medical Research Foundation, Sankara Nethralaya, 18 College Road, Chennai, 600006, Tamil Nadu, India.

Aim: To report the preliminary outcomes and elucidate the possible rationale of alloSLET for primary ocular surface reconstruction following excision of extensive ocular surface tumors.

Methods: Retrospective interventional case series with a minimum postoperative follow up of 1 year. AlloSLET was performed along with wide surgical excision and cryotherapy in 3 eyes.

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Multimodal imaging characteristics in eyes with vitreoretinal lymphoma treated with intravitreal rituximab.

Int Ophthalmol

August 2021

Medical Research Foundation, Shri Bhagwan Mahavir Vitreo-Retinal Services, Sankara Nethralaya, 18 College Road, Chennai, 600006, Tamilnadu, India.

Purpose: To characterize the imaging features in eyes with vitreoretinal lymphoma (VRL) using ultra-widefield fundus photography (UWF-FP), swept-source optical coherence tomography (SSOCT) and fundus autofluorescence (FAF) that are correlated to ongoing treatment with intravitreal Rituximab(IVR).

Methods: Retrospective observational imaging-based study of 15 treatment-naive eyes with VRL treated with IVR. All patients with primary VRL underwent vitreous biopsy using 23/25G microincision vitrectomy system for confirmation of diagnosis.

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Purpose: To evaluate treatment outcomes and complications of intravitreal rituximab (IVR) monotherapy for eyes with vitreoretinal lymphoma (VRL).

Methods: Patients diagnosed with 'isolated primary VRL' or 'VRL with remission of systemic disease' and treated with IVR (1 mg/0.1 ml) between June 2014 and June 2019 were included in this retrospective, interventional case series.

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