Publications by authors named "Srinivas"

The increasing challenges posed by plant viral diseases demand innovative and sustainable management strategies to minimize agricultural losses. Exogenous double-stranded RNA (dsRNA)-mediated RNA interference (RNAi) represents a transformative approach to combat plant viral pathogens without the need for genetic transformation. This review explores the mechanisms underlying dsRNA-induced RNAi, highlighting its ability to silence specific viral genes through small interfering RNAs (siRNAs).

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Isatin (1-indole-2,3-dione) and its derivatives have been found to exhibit various biological activities, including anticancer and antidiabetic properties. In this study, a series of nine isatin-1,2,3-triazole conjugates were synthesized and evaluated for their anti-inflammatory potential experiments. Their synthesis involved the propargylation of isatin 1 with propargyl bromide to obtain -propargyl isatin 2, which was subjected to click reactions with different aromatic azides to yield isatin--1,2,3-triazoles (3a-i).

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Rapid advancements in long-read sequencing have facilitated species-level microbial profiling through full-length 16S rRNA sequencing (~ 1500 bp), and more notably, by the newer 16S-ITS-23S ribosomal RNA operon (RRN) sequencing (~ 4500 bp). RRN sequencing is emerging as a superior method for species resolution, exceeding the capabilities of short-read and full-length 16S rRNA sequencing. However, being in its early stages of development, RRN sequencing has several underexplored or understudied elements, highlighting the need for a critical and thorough examination of its methodologies.

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Background: The Heineke-Mikulicz anoplasty (HMA) is a technique for addressing skin-level postoperative strictures following posterior sagittal anorectoplasty (PSARP) and posterior sagittal anorectovaginourethroplasty (PSARVUP). We aimed to evaluate the long-term outcomes with HMA as a treatment for postoperative anal strictures.

Methods: A retrospective review was conducted for patients with a history of ARM who underwent HMA for skin-level anal strictures.

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Introduction: Laparoscopic cholecystectomy has evolved into a daycare procedure thanks to advancements in both surgical and anesthetic techniques. Regional anesthesia, specifically segmental thoracic spinal anesthesia (TSA), offers distinct benefits over general anesthesia, such as enhanced hemodynamic stability and quicker recovery, especially in high-risk patients. This study aims to compare the sensory and motor block characteristics, hemodynamic stability, and incidence of adverse effects between isobaric and hyperbaric 0.

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Bexicaserin is a highly selective agonist at the 5-HT receptor in clinical development for the treatment of seizures associated with developmental and epileptic encephalopathies (DEEs). We report an LC-MS/MS method for the quantitative estimation of bexicaserin in human plasma and urine. The sample preparation involves the extraction of bexicaserin and internal standard (CD-bexicaserin; IS) from 150 μL plasma and 50 μL urine using a solid phase extraction method.

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The multifactorial nature of cancer requires treatment that involves simultaneous targeting of associated overexpressed proteins and cell signaling pathways, possibly leading to synergistic effects. Herein, we present a systematic study that involves the simultaneous inhibition of human topoisomerases (hTopos) and histone deacetylases (HDACs) by multitargeted quinoline-bridged hydroxamic acid derivatives. These compounds were rationally designed considering pharmacophoric features and catalytic sites of the cross-talk proteins, synthesized, and assessed for their anticancer potential.

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Article Synopsis
  • The study examines the relationship between skin oxylipins, which are bioactive lipids produced from fatty acids by skin microbes, and different microbial communities on the skin of children and adults.
  • Findings highlighted that Malassezia restricta, a type of skin fungus, has a positive impact on the production of a specific oxylipin (9,10-DiHOME) in adults, while showing a negative correlation with its precursor in children, indicating differences in skin chemistry across age groups.
  • The research suggests a complex communication system between skin microbes and host lipid metabolism that could have implications for skin health, emphasizing the need for further exploration of these interactions for potential therapeutic applications.
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Deep Brain Stimulation is a form of neurostimulation where electrical stimulation is delivered via intracranial electrodes over specific subcortical targets. It has been increasingly used as an alternative to ablative procedures for psychiatric disorders refractory to standard treatments. This review describes the common psychiatric indications for DBS, the current evidence base, putative mechanisms, and future directions.

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Myopic eye growth induces mechanical stretch, which can lead to structural and functional retinal alterations. Here, we investigated the effect of lens-induced myopic growth on the distribution of retinal ganglion cells (RGCs), glial fibrillary acidic protein (GFAP) expression and intensity, and peripapillary retinal nerve fiber layer (ppRNFL) thickness in common marmosets () induced with myopia continuously for six months, using immunohistochemistry and spectral-domain optical coherence tomography. We also explored the relationship between cellular structural parameters and the photopic negative response (PhNR) using full-field electroretinography.

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Drug-induced hypertension, though rare, often presents diagnostic challenges, particularly when the causative drug is not typically associated with hypertension. We describe a case involving a 55-year-old woman who presented with anxiety, confusion, and significantly high blood pressure unresponsive to standard treatments. Despite increasing medication doses, her blood pressure remained poorly controlled, leading to an investigation for secondary causes.

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Background: Studies have demonstrated that standardizing labor induction (IOL), often with the use of protocols, may reduce racial inequities in obstetrics. IOL protocols are complex, multi-component interventions. To target identified implementation barriers, audit and feedback (A&F) was selected as an implementation strategy.

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Introduction: Child Opportunity Index (COI) is associated with complicated appendicitis (CA) in children. Value-based care through an accountable care organization (ACO) may modify this association. We aimed to determine if enrollment in our state's ACO, Partners For Kids (PFK), modified the association between COI and CA.

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Article Synopsis
  • The study investigates oncologists' awareness of ototoxicity and monitoring practices in head and neck cancer patients in South India using semi-structured interviews.
  • All oncologists recognized the ototoxic effects of treatments but considered the resulting hearing loss minor and did not prioritize counseling on this issue.
  • Despite awareness of ototoxicity monitoring programs, none had implemented them, indicating a need for improved education and advocacy among oncologists about the importance of these programs.
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Article Synopsis
  • Cervical cancer affects around 600,000 women globally each year, and this study focused on how treatment timing, specifically the gap between external beam radiotherapy and brachytherapy, impacts early recurrences.
  • Data was collected from medical records of 288 cervical cancer patients, revealing that 93% had a complete response to treatment yet 8% experienced early cancer recurrences within six months.
  • The research found a significant correlation between longer overall treatment times and increased risk of early recurrences, suggesting that optimizing treatment schedules could improve patient outcomes.
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Purpose: Arachnoid cysts constitute approximately 1 % of intracranial mass lesions, with quadrigeminal cistern arachnoid cysts being 5-18 % of those. This study presents a series of 31 cases of quadrigeminal cistern arachnoid cysts, constituting the most extensive series reported to date.

Methods: A retrospective analysis was conducted on 31 patients diagnosed with quadrigeminal cistern arachnoid cysts, focusing on clinical presentation, demographics, treatment approaches, and outcomes.

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Background: Cesarean delivery remains the most common obstetrical procedure with more than 250,000 patients in the US undergoing cesarean following labor induction annually. Here, we evaluated the impact of prospectively implementing a standardized labor induction protocol on cesarean delivery rates.

Methods: This multi-site type I hybrid effectiveness-implementation study compared 2 years before (PRE) and 2 years after (POST) implementation of a standardized labor induction protocol at two hospitals within the University of Pennsylvania Health System (2018-2022).

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Placing an implant immediately into extraction sockets provides a distinct advantage over delayed placement, eliminating the need for a 4 to 6 months waiting period for bone formation. However, when patients present with hypothyroidism, the feasibility of immediate placement of dental implants becomes uncertain. This case involved a hypothyroid woman in her late 60s with loose lower anterior teeth.

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Objectives: Delayed diagnosis of acute appendicitis in children may result in complex appendicitis with appendiceal perforation. Delayed diagnosis can result from missed opportunity for initial diagnosis (MOID) despite medical attention. Studies report MOID of less than 5% in pediatric emergency departments (EDs), but we hypothesized that many MOID occurs outside tertiary care facilities.

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Demodexblepharitis (DB) has become one of the common differential diagnoses in patients presenting with red eyes in daily clinics. In this review article, we have incorporated a detailed discussion about the mite and the various mechanisms by which it causes different signs and symptoms, the risk factors, and diagnostic methods with current and emerging treatment modalities. Because of the chronic symptoms and rather a late diagnosis, DB considerably affects patients' quality of life.

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Introduction: The rapid escalation of cyber threats necessitates innovative strategies to enhance cybersecurity and privacy measures. Artificial Intelligence (AI) has emerged as a promising tool poised to enhance the effectiveness of cybersecurity strategies by offering advanced capabilities for intrusion detection, malware classification, and privacy preservation. However, this work addresses the significant lack of a comprehensive synthesis of AI's use in cybersecurity and privacy across the vast literature, aiming to identify existing gaps and guide further progress.

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Objective: We aimed to study the impact of anorectal malformation (ARM) type and sacral ratio on continence outcomes in children. We secondarily aimed to compare continence outcomes by age group and determine quality of life (QoL) with different bowel regimens.

Summary Background Data: Children with ARM experience dysfunctional stooling into adulthood.

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