Publications by authors named "KrishnaKumar A"

Objectives: The concept of beauty from within is a growing trend in the market and people now look for oral supplements that can enhance the well-being of skin from within. Within this principle, a proprietary pomegranate extract (Grantria), standardized to ellagic acid, punicic acid and punicalagin, was developed using ADOP (Advanced Oil-Powder) technology and was clinically evaluated for its efficacy and safety in healthy adults.

Methods: This evaluation was carried out as a randomized, placebo-controlled clinical study for 60 days at a daily dose of 300 mg.

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Tabular data, spreadsheets organized in rows and columns, are ubiquitous across scientific fields, from biomedicine to particle physics to economics and climate science. The fundamental prediction task of filling in missing values of a label column based on the rest of the columns is essential for various applications as diverse as biomedical risk models, drug discovery and materials science. Although deep learning has revolutionized learning from raw data and led to numerous high-profile success stories, gradient-boosted decision trees have dominated tabular data for the past 20 years.

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Despite progress in designing protein-binding proteins, the shape matching of designs to targets is lower than in many native protein complexes, and design efforts have failed for the tumor necrosis factor receptor 1 (TNFR1) and other protein targets with relatively flat and polar surfaces. We hypothesized that free diffusion from random noise could generate shape-matched binders for challenging targets and tested this approach on TNFR1. We obtain designs with low picomolar affinity whose specificity can be completely switched to other family members using partial diffusion.

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Hypersplenism, although a rare hematological complication seen in chronic kidney disease patients, poses a significant challenge for successful kidney transplantation due to potential complications such as cytopenias and inadequate immunosuppressive therapy. We present a 40-year old end-stage kidney disease patient on dialysis with hypersplenism who underwent a laparoscopic splenectomy prior to high immunological risk renal transplantation. Post-splenectomy, there was a remarkable improvement in cytopenias, and effective immunosuppressive therapy could be administered prior to renal transplantation.

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Identification of bacterial protein-protein interactions and predicting the structures of these complexes could aid in the understanding of pathogenicity mechanisms and developing treatments for infectious diseases. Here we developed RoseTTAFold2-Lite, a rapid deep learning model that leverages residue-residue coevolution and protein structure prediction to systematically identify and structurally characterize protein-protein interactions at the proteome-wide scale. Using this pipeline, we searched through 78 million pairs of proteins across 19 human bacterial pathogens and identified 1,923 confidently predicted complexes involving essential genes and 256 involving virulence factors.

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Introduction: Thoracolumbar (TL) junction fractures are common, often resulting from high-energy trauma or osteoporosis, and may lead to neurological deficits, deformities, or chronic pain. Treatment decisions for neurologically intact patients remain controversial, with nonsurgical management often favored. The AO classification system has been used to characterize thoracolumbar fractures using fracture morphology and clinical factors affecting clinical decision-making for fracture management.

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Background and objectives Stadice is a proprietary herbal ingredient preparation standardized to mangiferin, developed to support cognitive wellness in healthy adults. extract and its active constituent, mangiferin were known for its positive cognitive health benefits at experimental levels. This was an attempt to evaluate the clinical efficacy and safety of Stadice on healthy subjects.

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Objective: Meningiomas are the most common primary central nervous tumor and are often treated with radiation therapy. This study examines the long-term volumetric changes of intracranial meningiomas in response to radiation therapy. The objective is to analyze and model the volumetric changes following treatment.

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Wearable electronics have become integral for monitoring physiological parameters in diverse applications, particularly in medical and military fields. e-Textiles, featuring integrated conductive threads or fabrics, offer seamless integration and comfort for prolonged contact with the body. Despite their potential, the biofouling of textile-based electrode systems by skin microbes remains a significant challenge, limiting their operational lifespan.

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The entero-mammary pathway is a specialized route that selectively translocates bacteria to the newborn's gut, playing a crucial role in neonatal development. Previous studies report shared bacterial and archaeal taxa between human milk and neonatal intestine. However, the functional implications for neonatal development are not fully understood due to limited evidence.

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Advanced molecular testing has increasingly become an integral component for accurate diagnosis of central nervous system (CNS) tumors. We sought to establish the current state of molecular testing availability and approaches for the diagnosis of CNS tumors in US hospitals that conduct high volumes of CNS tumor resections. We distributed a 16-item survey inquiring about molecular testing approaches for CNS tumors to 115 neuropathologists at US hospitals with neurosurgery residency programs.

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Identification of bacterial protein-protein interactions and predicting the structures of the complexes could aid in the understanding of pathogenicity mechanisms and developing treatments for infectious diseases. Here, we developed a deep learning-based pipeline that leverages residue-residue coevolution and protein structure prediction to systematically identify and structurally characterize protein-protein interactions at the proteome-wide scale. Using this pipeline, we searched through 78 million pairs of proteins across 19 human bacterial pathogens and identified 1923 confidently predicted complexes involving essential genes and 256 involving virulence factors.

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Orthopedic device-related infection (ODRI) poses a significant threat to patients with titanium-based implants. The challenge lies in developing antibacterial surfaces that preserve the bulk mechanical properties of titanium implants while exhibiting characteristics similar to bone tissue. In response, we present a two-step approach: silver nanoparticle (AgNP) coating followed by selective laser-assisted surface alloying on commonly used titanium alumina vanadium (TiAl6V4) implant surfaces.

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Objective: Neurosurgery is among the most demanding and time-consuming occupations, and with diversity and inclusion initiatives only recently increasing the number of women in the field, efforts still need to be made to help neurosurgery become more accommodating for pregnancy and child-rearing. Thus, the present study sought to be the first to investigate this issue through in-depth qualitative interviews of women in neurosurgery.

Methods: A total of 33 female neurosurgeons participated in semistructured Zoom interviews.

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Article Synopsis
  • Regorafenib is a multikinase inhibitor used for treating metastatic colorectal cancer and has potential uses in other cancers, but it carries risks of severe side effects like hemorrhage and gastrointestinal issues.
  • A 59-year-old man treated with regorafenib for metastatic colorectal cancer developed altered mental status, leading to surgery where a mass was removed, but he later experienced acute bleeding in the brain post-surgery.
  • The case highlights the importance of discontinuing regorafenib prior to neurosurgery to prevent complications, suggesting similar precautions should be taken with other anti-VEGF treatments.
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A substantial number of critically ill patients in intensive care units (ICUs) rely on indwelling urinary catheters (IDCs), demanding regular monitoring of urine bags. This process increases the workload for healthcare providers and elevates the risk of exposure to contagious diseases. Moreover, IDCs are a primary cause of catheter-associated urinary tract infections (UTIs) in ICU patients whose delayed detection can have life-threatening complications.

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Background And Objectives: Hemimegalencephaly (HME) is a rare diffuse malformation of cortical development characterized by unihemispheric hypertrophy, drug-resistant epilepsy (DRE), hemiparesis, and developmental delay. Definitive treatment for HME-related DRE is hemispheric surgery through either anatomic (AH) or functional hemispherectomy (FH). This individual patient data meta-analysis assessed seizure outcomes of AH and FH for HME with pharmacoresistant epilepsy, predictors of Engel I, and efficacy of different FH approaches.

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Article Synopsis
  • Inflammatory bowel disease (IBD) is increasingly common, affecting 6.8 million people worldwide, with a high relapse rate of 40% within a year.
  • Traditional endoscopy techniques are limited, relying on subjective image assessments that are not effective for early detection and regular monitoring of IBD.
  • A new miniaturized smart capsule has been developed to monitor reactive oxygen species (ROS) levels, using advanced sensors for location tracking and inflammation detection throughout the gastrointestinal tract, demonstrating promise for improved diagnosis and treatment of digestive diseases.
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This study examined the mediating role of parental cognitive engagement and parental guidance on the associations between family socioeconomic and home environment resource risk factors and children's literacy and social skills in Guyana. The sample consisted of 1208 families from diverse ethnic and socioeconomic backgrounds drawn from the 2019 to 2020 country-level UNICEF MICS data. Caregivers provided assessments of socioeconomic conditions, educational resources in the home environment, cognitive engagement, parental guidance and children's literacy and social skills.

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Dermal wound infections are a rising source of morbidity and mortality in patients worldwide as new and worsening complications reduce the efficacy of traditional treatments. These challenges in wound care are increasingly caused by comorbidities such as obesity and diabetes as well as surging rates of antibiotic resistance. As a result, there is an urgent need for alternative treatment options.

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Background: Superficial siderosis is the deposition of hemosiderin in the superficial layers of the central nervous system. It has been described in patients with chronic leakage of blood into the cerebrospinal fluid or with amyloid angiopathy, often associated with Alzheimer's disease (AD).

Observations: We present two cases of superficial siderosis with vastly different symptomatologies and treatment courses.

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