Publications by authors named "Camilo Roa"

Article Synopsis
  • Asthma is a prevalent noncommunicable disease associated with significant mortality, particularly in low- and middle-income countries like the Philippines, where short-acting beta-agonists (SABAs) are often overused, leading to health risks.
  • The review highlights the need for improved asthma management strategies, including the use of inhaled corticosteroid-formoterol combinations, patient education on inhaler use, and adherence to medication to prevent severe outcomes.
  • Recommendations for better asthma care involve enhancing access to essential medications, implementing treatment algorithms, and developing multidisciplinary team approaches for primary care providers to improve patient outcomes.
View Article and Find Full Text PDF

Background And Objective: Due to their academic load, medical students are highly susceptible to stress. Stress is one of the factors that can alter sleep quality which may consequently affect the cognitive performance of medical students. There has been a lack of published local literature that looks into the association between stress and sleep quality, especially during the COVID-19 pandemic.

View Article and Find Full Text PDF

Background: Though observational evidence supports indirect effects of SARS-CoV-2 vaccines, randomised experiments are lacking. To address this gap, the double-blinded, prospective follow-up of the household contacts (HHCs) of Philippine participants of the individually-randomised, placebo-controlled trial of the adjuvanted-subunit protein COVID-19 vaccine, SCB-2019, (EudraCT, 2020-004272-17; ClinicalTrials.gov, NCT04672395) was analyzed in a cluster-randomised fashion.

View Article and Find Full Text PDF

Background: ABO1020 is a monovalent COVID-19 mRNA vaccine. Results from a phase 1 trial showed ABO1020 was safe and well tolerated, and phase 3 trials to evaluate the efficacy, immunogenicity, and safety of ABO1020 in healthy adults are urgently needed.

Methods: We conducted a multinational, randomized, placebo-controlled, double-blind, phase 3 trial among healthy adults (ClinicalTrials.

View Article and Find Full Text PDF

Background: SYN023 is an anti-rabies monoclonal antibody mixture administered as part of post-exposure prophylaxis regimens. The rabies virus neutralizing antibody (RVNA) concentration generally accepted as an adequate immune response to vaccination is ≥ 0.5 IU/mL.

View Article and Find Full Text PDF

We assessed the non-inferiority of homologous boosting compared with heterologous boosting with the recombinant protein vaccine, SCB-2019, in adults previously immunized with different COVID-19 vaccines. Three equal cohorts (N ~ 420) of Philippino adults (18-80 years) previously immunized with Comirnaty, CoronaVac or Vaxzevria COVID-19 vaccines were randomized 1:1 to receive homologous or heterologous (SCB-2019) boosters. Neutralizing antibodies against prototype SARS-CoV-2 (Wuhan-Hu-1) were measured in all participants and against Delta variant and Omicron sub-lineages in subsets (30‒50 per arm) 15 days after boosting.

View Article and Find Full Text PDF

Background: We compared homologous and heterologous boosting in adults in the Philippines primed with 2 or 3 doses of CoronaVac, with recombinant protein vaccine, SCB-2019.

Methods: CoronaVac-immunized adults (18-72 years) received a homologous or heterologous full or half dose SCB-2019 booster. We assessed all neutralizing antibody (NAb) responses against prototype SARS-CoV-2 after 15 days and NAb against SARS-CoV-2 Delta and Omicron variants in subsets (30‒50 per arm).

View Article and Find Full Text PDF
Article Synopsis
  • Commercial broadband echosounders can classify fish species based on their unique acoustic scattering responses, which depend on their physical features.
  • Using computer models, researchers studied how the swim bladder structure of various reef fish species affects the sound they reflect when exposed to different frequencies and angles.
  • The study found that classifiers effectively distinguished fish species with over 70% accuracy under optimal conditions, showing that this method could be a viable tool for species identification in complex marine environments.
View Article and Find Full Text PDF
Article Synopsis
  • The study evaluated the safety and efficacy of the SCB-2019 COVID-19 vaccine in a large, double-blind, placebo-controlled trial involving over 30,000 adults across five countries.* -
  • Participants were randomly assigned to receive either the vaccine or a placebo, and the primary focus was on measuring vaccine effectiveness against COVID-19 and monitoring adverse effects.* -
  • Results showed that the vaccine had an overall efficacy of 67.2% against any severity of COVID-19, and 83.7% efficacy against moderate-to-severe cases, indicating its potential effectiveness in preventing the disease.*
View Article and Find Full Text PDF

We propose an approach for discriminating fibrillar collagen fibers from elastic fibers in the mouse cervix in Mueller matrix microscopy using convolutional neural networks (CNN) and K-nearest neighbor (K-NN) for classification. Second harmonic generation (SHG), two-photon excitation fluorescence (TPEF), and Mueller matrix polarimetry images of the mice cervix were collected with a self-validating Mueller matrix micro-mesoscope (SAMMM) system. The components and decompositions of each Mueller matrix were arranged as individual channels of information, forming one 3-D voxel per cervical slice.

View Article and Find Full Text PDF

REALISE Asia-an online questionnaire-based study of Asian asthma patients-identified five patient clusters defined in terms of their control status and attitude towards their asthma (categorised as: 'Well-adjusted and at least partly controlled'; 'In denial about symptoms'; 'Tolerating with poor control'; 'Adrift and poorly controlled'; 'Worried with multiple symptoms'). We developed consensus recommendations for tailoring management of these attitudinal-control clusters. An expert panel undertook a three-round electronic Delphi (e-Delphi): Round 1: panellists received descriptions of the attitudinal-control clusters and provided free text recommendations for their assessment and management.

View Article and Find Full Text PDF
Article Synopsis
  • The study analyzed stable COPD patients across seven Asian cities to understand how exposure to biomass fuels and dusty jobs affects their respiratory health and quality of life.
  • Patients with a history of biomass fuel exposure and dusty jobs experienced more severe symptoms like cough and wheeze, as well as worse airflow limitation and health-related quality of life compared to those without such exposures.
  • The findings indicate that environmental factors related to work and household practices significantly impact the health of COPD patients in these regions.
View Article and Find Full Text PDF

Background And Objective: Roflumilast, an oral, selective phosphodiesterase 4 inhibitor, has been shown to reduce exacerbations and improve pulmonary function in patients with COPD. This study examined the efficacy, safety and tolerability of roflumilast in Asian patients with COPD.

Methods: Patients with COPD were randomized 1:1 to enter a 12-week treatment period and receive either oral roflumilast, 500 µg once daily, or placebo, following a single-blind, 4-week baseline period in which all patients received placebo.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess how common Chronic Obstructive Pulmonary Disease (COPD) is among adults in rural areas of the Philippines and identify related risk factors.
  • Researchers surveyed 1,188 individuals aged 40 and older using detailed questionnaires and spirometry tests; they found that 20.8% had COPD.
  • Key risk factors linked to higher prevalence included a long history of farming, using firewood for cooking, significant smoking history, and having a previous tuberculosis infection.*
View Article and Find Full Text PDF

Background And Objective: Antimicrobial resistance is a global problem and the prevalence is high in many Asian countries.

Methods: A prospective observational study of the prevalence of bacterial pathogens and their antimicrobial susceptibilities in patients with acute exacerbations of chronic bronchitis (AECB) was conducted in Indonesia, Philippines, Korea, Thailand, Malaysia, Taiwan and Hong Kong from August 2006 to April 2008. The diagnosis of AECB was based on increased cough and worsening of two of following: dyspnoea, increased sputum volume or purulence.

View Article and Find Full Text PDF

Introduction: As of 2001, the Philippines ranks 7th among the world's 22 countries with a heavy tuberculosis (TB) burden. As the country accelerates its campaign to control the global epidemic, the Philippine Tuberculosis Initiatives for the Private Sector (PhilTIPS) joined the efforts to combat it through the Directly Observed Treatment Short-course (DOTS) strategy and brought it to the level of medical schools. PhilTIPS commissioned this work to develop an evidence-based medical curriculum with strong and conscious integration of TB-DOTS.

View Article and Find Full Text PDF

The gastroprotective effect of quantified tannins (13.4%) from Syzygium cumini was determined. Gastric mucosal damage was induced in sixty eight rats by oral gavage administration of HCl/ethanol solution.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionegq8n4ng47bbpvscnja9jcgnijieie1s): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once