Lifestyles associated with malaria in pregnancy in northwest Colombia: a mixed study from Latin American critical epidemiology.

Background: In the scientific literature on Malaria in Pregnancy (MiP), no studies have been conducted on lifestyles based on critical theory. The objective of this study was to analyse the lifestyles or singular processes of social determination of health in MiP in northwestern Colombia.

Methods: Mixed QUAN-QUAL convergent triangulation study.

Prospective study of malaria in pregnancy, placental and congenital malaria in Northwest Colombia.

Background: Pregnancy Associated Malaria (PAM) include malaria in pregnancy (MiP), placental malaria (PM), and congenital malaria (CM). The evidence available in Colombia on PAM focuses on one of the presentations (MiP, PM or CM), and no study longitudinally analyses the infection from the pregnant woman, passing through the placenta, until culminating in the newborn. This study determined the frequency of MiP, PM, and CM caused by Plasmodium vivax, Plasmodium falciparum, or mixed infections, according to Thick Blood Smear (TBS) and quantitative Polymerase Chain Reaction (qPCR).

Social determination of malaria in pregnancy in Colombia: a critical ethnographic study.

Background: The meanings and experiences related to malaria in pregnancy (MiP) and its processes of social determination of health (PSDH) have not been reported in the world scientific literature. The objective was to understand the meanings and experiences of MiP, and to explain their PSDH in an endemic area from Colombia, 2022.

Methods: Critical ethnography with 46 pregnant women and 31 healthcare workers.

Interaction of histological events and physiological mediators in healthy placentas from malaria-endemic area in Colombia: An approach with a factorial model.

The biological study of the placenta is fragmented and focused on morbid events. The interaction of histological events and mediators of physiological processes in healthy placentas in malaria-endemic areas is unknown. This study aimed to build a factorial model for the convergence of events and mediators in healthy placentas of women living in northwestern Colombia through a study of 44 placentas.

Clinical and Parasitological Profiles of Gestational, Placental and Congenital Malaria in Northwestern Colombia.

This study compared the clinical-parasitological profiles of gestational (GM), placental (PM), and congenital (CM) malaria in northwestern Colombia. A cross-sectional study with 829 pregnant women, 549 placentas, and 547 newborns was conducted. The frequency of GM was 35.

A systematic review of mixed studies on malaria in Colombia 1980-2022: what the "bifocal vision" discovers.

Mixed methods are essential in public health research and malaria control, because they allow grasping part of the complexity and diversity of the factors that determine health-disease. This study analyzes the mixed studies on malaria in Colombia, 1980-2022, through a systematic review in 15 databases and institutional repositories. The methodological quality was assessed with Mixed Methods Appraisal Tool (MMAT), STrengthening the Reporting of OBservational studies in Epidemiology (STROBE), and Standards for Reporting Qualitative Research (SRQR).

Diagnostic Accuracy of a Thick Blood Smear Compared to qPCR for Malaria Associated with Pregnancy in Colombia.

This study aimed to evaluate the accuracy of the thick blood smear (TBS) versus quantitative polymerase chain reaction (qPCR) for the diagnosis of malaria associated with pregnancy (MAP) caused by or in Colombia in its gestational malaria (GM), placental malaria (PM), and congenital malaria (CM) forms as well as to compare its accuracy in different subgroups of pregnant women according to the presence of fever, anemia and a history of malaria. This was a diagnostic evaluation of 829 pregnant women, 579 placentas, 381 umbilical cord samples, and 221 neonatal peripheral blood samples. Accuracy was evaluated based on the parameters of sensitivity, specificity, predictive values, likelihood ratios, and validity index, with their 95% confidence intervals.

Systematic review of the diagnostic accuracy of thick smear compared to polymerase chain reaction for pregnancy-associated malaria, 2010-2022.

Objective.: To evaluate the accuracy of thick smear (TS) versus quantitative polymerase chain reaction (PCR) for pregnancy-associated malaria (PAM).

Materials And Methods.

Effect of Plasmodium Infection during Pregnancy on Passive Neonatal Immunity against Tetanus Toxoid and Rotavirus.

Passive immunity acquired through transplacental IgG transport is essential to protect infants against pathogens as childhood vaccination programs begins. Diarrhea caused by rotavirus and neonatal tetanus are common and potentially fatal childhood infections that can be prevented by transplacental IgG. However, it is not known whether maternal infections in pregnancy can reduce the transfer of these antibodies to the fetus.

A Retrospective Review on Severe Malaria in Colombia, 2007-2020.

Background: Knowledge of severe malaria (SM) or complicated malaria is insufficient in all its components. The least known type is the one associated with , compared to that caused by . The aim of this study was to provide a general overview of epidemiological information about the burden of SM, obtained from the National Public Health Surveillance System (SIVIGILA) for the period 2007-2020 in Colombia.

Frequency of gestational malaria and maternal-neonatal outcomes, in Northwestern Colombia 2009-2020.

Research on Gestational Malaria (GM) is scarce in America's. In the few available studies in Colombia, the analysis of immunological or parasitological aspects predominates, with few analyzes of epidemiological aspects. The objectives were to determine the frequency of GM and submicroscopic infections (positive with PCR and negative with thick blood smears), to identify obstetric and malaria history associated with GM, and to describe maternal and neonatal outcomes associated with GM, in northwestern Colombia.

Frequency of placental malaria and its associated factors in northwestern Colombia, pooled analysis 2009-2020.

Knowledge about placental malaria (PM) is insufficient in the world, and incipient in Colombia where studies are few and recent. In this country, PM has been reported by Plasmodium vivax, Plasmodium falciparum, and mixed infection. The objective was to determine the frequency of PM and its associated clinical-epidemiological factors in mothers and neonates in northwestern Colombia, 2009-2020.

Congenital malaria: Frequency and epidemiology in Colombia, 2009-2020.

Congenital Malaria (CM) is an underestimated and under-researched problem in Colombia, despite its severe clinical, epidemiological, economic, and public health consequences. The objective was to determine the general frequency of CM, the specific frequency of CM by diagnostic test and plasmodial species, and identify its associated factors. A retrospective study was carried out using the records of 567 newborns.

Antigen Discovery in Circulating Extracellular Vesicles From Patients.

is the most widely distributed human malaria parasite with 7 million annual clinical cases and 2.5 billion people living under risk of infection. There is an urgent need to discover new antigens for vaccination as only two vaccine candidates are currently in clinical trials.

Placental malaria caused by Plasmodium vivax or P. falciparum in Colombia: Histopathology and mediators in placental processes.

Knowledge about the relation of histopathological characteristics and mediators of physiological processes in the placenta malaria (PM) is poor, and that PM caused by Plasmodium vivax is almost null. The objective was to compare histopathological characteristics, cytokines and mediators of physiological processes in PM depending on the parasitic species, through a cross-sectional study in three groups: negative-PM, vivax-PM, falciparum-PM from Northwestern Colombia. The diagnosis of PM was made with thick blood smear, qPCR, and histopathology.

Meta-analysis of the prevalence of malaria associated with pregnancy in Colombia 2000-2020.

Knowledge about malaria associated with pregnancy is scarce in Latin America, and in Colombia, little is known about the magnitude of this infection. A systematic review was conducted to determine the prevalence of malaria associated with pregnancy (MAP) and each of its three forms: gestational (GM), placental (PM), and congenital (CM) tested using thick blood smear (TBS) and PCR. Also to compare the proportion of cases due to Plasmodium falciparum and Plasmodium vivax in Colombia from the year 2000-2020.

Cost-effectiveness of rapid diagnostic tests, compared to microscopic tests, for the diagnosis and treatment of gestational malaria in Colombia from an institutional perspective.

Background: Gestational malaria is associated with negative outcomes in maternal and gestational health; timely diagnosis is crucial to avoid complications. However, the limited infrastructure, equipment, test reagents, and trained staff make it difficult to use thick blood smear tests in rural areas, where rapid testing could be a viable alternative. The purpose of this study was to estimate the cost-effectiveness of rapid tests type III (Plasmodium falciparum/Plasmodium spp P.

Systematic review of qualitative studies about malaria in Colombia.

Introduction: The research about malaria in Colombia has centered mainly on the biomedical (clinical, parasitological, epidemiological and entomological) field, with little focus on qualitative research.

Purpose: Analyzing social categories related to malaria in Colombia, based on qualitative studies published among scientific literature.

Methods: Systematic review following Cochrane and PRISMA () recommendations.

Submicroscopic placental malaria: histopathology and expression of physiological process mediators.

Objetives: To relate histopathological events of placental malaria (PM), immune cell behavior and gene expression associated with cytokines, hypoxia, inflammation and angiogenesis in placentas with or without plasmodial infection.

Materials And Methods: Transversal design, with three independent groups. Women were recruited, and their placentas were collected in 2009-2016, in the hospitals of Puerto Libertador and Tierralta, northwestern Colombia.

Systematic review of microeconomic analysis of pregnancy-associated malaria.

Introduction: Pregnancy-associated malaria (PAM) is a health problem with serious clinical, epidemiological and economic effects.

Purpose: To analyze the microeconomic evaluations of PAM reported in the world scientific literature.

Methods: Systematic review with 15 different search strategies in PubMed, ScienceDirect, Scielo, Google Scholar and Malaria in Pregnancy (MiP) Library.

Plasma-derived extracellular vesicles from Plasmodium vivax patients signal spleen fibroblasts via NF-kB facilitating parasite cytoadherence.

Plasmodium vivax is the most widely distributed human malaria parasite. Previous studies have shown that circulating microparticles during P. vivax acute attacks are indirectly associated with severity.

ASSESSMENT OF THE EFFICACY AND SAFETY OF CHLOROQUINE MONOTHERAPY FOR THE TREATMENT OF ACUTE UNCOMPLICATED GESTATIONAL MALARIA CAUSED BY , CÓRDOBA, COLOMBIA, 2015-2017.

Objective: To determine the efficacy of chloroquine monotherapy in Colombian pregnant women with acute uncomplicated malaria vivax (GMV).

Methods: Prospective cohort study in pregnant women who presented of their own accord between February 1, 2015 and December 31, 2017 to malaria or prenatal care centers in two Colombian towns and in whom the diagnosis of was confirmed by means of blood spot test and and quantitative polymerase chain reaction (qPCR). Measured variables included sociodemographics, therapeutic failure (TF) and serious adverse events at 28 days and frequency of recurrence-relap (RR) over a follow-up period of 120 days.

[Consequences of gestational malaria infection in the immune function and immunomodulation of mother and newborn].

Pregnancy-associated malaria is an understudied event in Latin America. Most works about malaria in pregnancy have been conducted in Africa. These studies indicate that the infection generates immune response modulation and alterations in the placental environment, key factors for the proper development of the fetus and neonate.

[Social determination and determinants of malaria: a systematic review, 1980-2018Determinação social e determinantes sociais da malária: revisão sistemática, 1980-2018].

Objective: Describe how the 'social determination of health' approach has been applied in malaria studies around the world.

Methods: Systematic review of original studies published from 1980 to 2018. Six search strategies were used in ten multidisciplinary databases, and in libraries and repositories of seven universities in Brazil, Colombia, Ecuador, and Peru.