Publications by authors named "Cotton M"

In this work our aim was to identify early biomarkers in plasma samples associated with mortality in children with perinatal HIV treated early in life, to potentially inform early intervention targeting this vulnerable group. 20/215 children (9.3%) with perinatal HIV, enrolled within 3 months of age died prematurely within the first year of the study, despite early ART initiation.

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Article Synopsis
  • The study examined outcomes for infants with perinatally-acquired HIV who started early ART in South Africa, Mozambique, and Mali, focusing on mortality, viral suppression, and engagement in care over three years.
  • Out of 215 infants monitored, the 1-year death probability was 10%, which rose to 12% by the second and third years, with high baseline viral load identified as a significant risk factor for mortality.
  • Of the children, only 42% maintained sustained viral control for a year, with adherence to ART deemed optimal in 81% of visits, although lower adherence was linked to female sex at birth, younger diagnosis age, and adverse maternal social circumstances.
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Background: Triple arthrodesis is commonly used to correct rigid progressive collapsing foot deformity (PCFD). These patients often have associated first tarsometatarsal (TMT) instability on lateral weightbearing radiographs. It has not been well established if it is necessary to add first TMT arthrodesis to adequately correct the overall deformity.

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Background: Short peripheral catheter (SPC)-associated complications occur frequently in hospitalised neonates. Few studies have reported the use of SPC care bundles in resource-limited neonatal units.

Objective: To evaluate the impact of a SPC care bundle on SPC associated complications (infiltration, dislodgement, phlebitis) and catheter dwell time.

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  • Dolutegravir (DTG) is metabolized in the body, producing an inactive form called DTG glucuronide (DTG-gluc), and the study focused on its metabolic ratio (DTG-MR) among 85 HIV-positive children aged 3 months to 18 years.
  • The research found that the overall DTG-MR in children was similar to that in adults and was primarily influenced by the use of rifampicin, which significantly increased the DTG-MR.
  • These results suggest that factors like age, body weight, and type of NRTI treatment do not affect the DTG-MR in children, paving the way for better pharmacokinetic modeling for pediatric patients based on adult data
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The variant single nucleotide polymorphism rs8104571 has been associated with poor outcomes following traumatic brain injury (TBI) and is most prevalent in those of African ancestry. This single nucleotide polymorphism (SNP) resides within a gene coding for the TRPM4 protein, which complexes with SUR1 protein to create a transmembrane ion channel and is believed to contribute to cellular swelling and cell death in neurological tissue. Our study evaluates the relationship between circulating TRPM4 and SUR1, rs8104571 genotype, and clinical outcome in TBI patients.

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With the majority of medical journals having a rejection rate of >80% of submitted manuscripts, it does come as a shock and as grief to the author who great expectations before submission. Though the majority of literature available does mention how to overcome the lacunae in the manuscript before considering resubmission in another journal, none addresses the mental agony and setback the author faces and the way to overcome this setback. Every author should develop immunity and also be adequately mentally prepared to overcome this misery.

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Objectives: To develop a pragmatic twice daily lamivudine dosing strategy for preterm infants from 24 to 37 completed weeks of gestation.

Methods: Data were combined from eight pharmacokinetic studies in neonates and infants receiving lamivudine oral solution. A population pharmacokinetic model was developed using non-linear mixed effects regression.

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Analytical treatment interruption (ATI) is widely acknowledged as an essential component of studies to advance our understanding of HIV cure, but discussion has largely been focused on adults. To address this gap, we reviewed evidence related to the safety and utility of ATI in paediatric populations. Three randomised ATI trials using CD4 T-cell and clinical criteria to guide restart of antiretroviral therapy (ART) have been conducted.

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APV20002 was a multicenter, international, open-label study that began in 2003 investigating the pharmacokinetics, efficacy, and safety of ritonavir-boosted fosamprenavir (FPV/r) oral solution (OS) in combination with nucleoside reverse transcriptase inhibitor-based antiretroviral therapy (ART) in participants living with HIV-1 aged 4 weeks to <2 years with a primary endpoint at Week 48 (48W). Participants in APV20002 could continue in the study post-48W until FPV OS was locally available in their countries. Children were required to discontinue after reaching >39 kg or if FPV OS had no clinical benefit.

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The intestinal epithelium dynamically controls cell cycle, yet no experimental platform exists for directly analyzing cell cycle phases in non-immortalized human intestinal epithelial cells (IECs). Here, we present two reporters and a complete platform for analyzing cell cycle phases in live primary human IECs. We interrogate the transcriptional identity of IECs grown on soft collagen, develop two fluorescent cell cycle reporter IEC lines, design and 3D print a collagen press to make chamber slides for optimal imaging while supporting primary human IEC growth, live image cell cycle dynamics, then assemble a computational pipeline building upon free-to-use programs for semi-automated analysis of cell cycle phases.

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Background: In 2023, Tennessee replaced $6.2 M in US Centers for Disease Control and Prevention (CDC) human immunodeficiency virus (HIV) prevention funding with state funds to redirect support away from men who have sex with men (MSM), transgender women (TGW), and heterosexual Black women (HSBW) and to prioritize instead first responders (FR), pregnant people (PP), and survivors of sex trafficking (SST).

Methods: We used a simulation model of HIV disease to compare the clinical impact of Current, the present allocation of condoms, preexposure prophylaxis (PrEP), and HIV testing to CDC priority risk groups (MSM/TGW/HSBW); with Reallocation, funding instead increased HIV testing and linkage of Tennessee-determined priority populations (FR/PP/SST).

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  • Metabolic dysfunction-associated steatotic liver disease (MASLD) is a rising concern in individuals living with HIV, specifically impacting children with perinatally acquired HIV (PHIV) on antiretroviral therapy (ART).
  • A study followed 263 children over two years, comparing those with PHIV on older ART regimens and those switched to a newer regimen (TLD) with children without HIV (HU).
  • Results indicated that PHIV on older ART had significantly higher controlled attenuation parameters (CAP) suggesting greater liver fat compared to HU, but those switched to TLD showed no differences, indicating early ART intervention may help prevent liver damage.
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  • The study focuses on adolescents living with perinatally acquired HIV and their co-infection with COVID-19, highlighting limited data on this population.* -
  • A descriptive analysis was conducted on 53 adolescents who were tested for COVID-19 antibodies, revealing that 53% tested positive despite only one reporting prior symptomatic infection.* -
  • The research enhances knowledge about SARS-CoV-2 infection and vaccination strategies in HIV-positive adolescents, contributing valuable insights for healthcare practices.*
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Background: Coformulated bictegravir, emtricitabine, and tenofovir alafenamide is a single-tablet regimen and was efficacious and well tolerated in children and adolescents with HIV (aged 6 years to <18 years) in a 48-week phase 2/3 trial. In this study, we report data from children aged at least 2 years and weighing 14 kg to less than 25 kg.

Methods: We conducted this open-label, multicentre, multicohort, single-arm study in South Africa, Thailand, Uganda, and the USA.

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Background: We assessed the Pathological Determinants of Atherosclerosis in Youth (PDAY) score and other potential cardiovascular disease risk factors in adolescents previously enrolled in the Children with HIV Early antiRetroviral (CHER) and International Maternal Pediatric Adolescent AIDS Clinical Trials Network P1060 clinical trials.

Methods: Coronary artery and abdominal aorta (AA) PDAY scores were calculated for 56 participants over 15 years of age using a weighted combination of dyslipidemia, cigarette smoking, hypertension, obesity, and hyperglycemia. A PDAY score ≥1 is associated with early atherosclerosis.

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Objective: Among critically injured patients of various blood groups, we sought to compare survival and complication rates between COVID-19-positive and COVID-19-negative cohorts.

Background: SARS-CoV-2 infections have been shown to cause endothelial injury and dysfunctional coagulation. We hypothesized that, among patients with trauma in hemorrhagic shock, COVID-19-positive status would be associated with increased mortality and inpatient complications.

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Background: Existing solid antiretroviral fixed-dose combination formulations are preferred over liquid formulations in children, but their suitability for neonates is unknown. We evaluated the pharmacokinetics and safety of paediatric abacavir-lamivudine fixed-dose dispersible tablets and ritonavir-boosted lopinavir granules in neonates.

Methods: In this open-label, two-stage, single-arm, phase 1/2, pharmacokinetic and safety trial, generic abacavir- lamivudine (120:60 mg) double-scored dispersible tablets and lopinavir boosted with ritonavir (40:10 mg) granules were studied.

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Background: Severe hypoglycemia is a common and feared complication of medications used to lower blood glucose levels in individuals with diabetes. Psychoeducational interventions can prevent severe hypoglycemia in individuals with type 1 diabetes (T1D). We aim to determine the effectiveness of this approach among adults with type 2 diabetes (T2D) at elevated risk for severe hypoglycemia.

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Purpose: Develop a novel therapeutic strategy for patients with subtypes of mature T-cell and NK-cell neoplasms.

Experimental Design: Primary specimens, cell lines, patient-derived xenograft models, commercially available, and proprietary anti-KLRG1 antibodies were used for screening, target, and functional validation.

Results: Here we demonstrate that surface KLRG1 is highly expressed on tumor cells in subsets of patients with extranodal NK/T-cell lymphoma (ENKTCL), T-prolymphocytic leukemia (T-PLL), and gamma/delta T-cell lymphoma (G/D TCL).

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