The Dynamics of Malaria Clinical Symptoms with very Strong Emphasis on Asymptomatic Malaria

2021 ◽  
Vol 15 (11) ◽  
pp. 3502-3503
Author(s):  
Fareeha Cheema ◽  
Sabahat Fatima ◽  
Unber Naaz
Keyword(s):  
Malaria Infection ◽  
Clinical Symptoms ◽  
Malaria Prevention ◽  
High Morbidity ◽  
Asymptomatic Malaria ◽  
Strong Emphasis ◽  
Therapeutic Results ◽  
Prevention Methods ◽  
Developed World ◽  
The Relationship

In the developed world, malaria is a dangerous parasite that contributes to high morbidity and mortality. The disease is variable and its clinical presence varies from extreme to complex, normal, and difficult malaria, asymptomatic malaria. Malaria pathogenesis is complex. Our current research was conducted at Mayo Hospital, Lahore from May 2019 to February 2020. Despite several clinical severities trials the disorder is still poorly known for asymptomatic malaria infection. Malaria remains a problem for asymptomatic malaria, as it has a significant impact on the dynamic of transmission. In order to develop various therapeutic results, a thorough understanding of the relationship between hosts and parasites is important. Problems and obstacles to asymptomatic malaria study and management are addressed in this study. Man and parasite are identified and methods for management and recovery are presented for differential clinical outcomes. They are exposed to disease prevention. In the context of prospective studies to create more efficient malaria prevention methods, important lacunae in the understanding of asymptomatic malaria are further illustrated. Keywords: Malaria Clinical Symptoms, Strong Emphasis, Asymptomatic Malaria.

scholarly journals Evaluation of the Relationship between Malaria Infection and Significant Spread of Electrolyte Variation in Patients: Within and Outside Limit Analytic Model.

2020 ◽  
Author(s):  
James A. Ndako ◽  
Charles E. Okolie ◽  
Victor T. Dojumo ◽  
Victor O. Fajobi ◽  
Jeremiah A. Akinwumi
Keyword(s):  
Malaria Infection ◽  
Clinical Symptoms ◽  
Standard Procedure ◽  
Age Groups ◽  
Electrolyte Imbalance ◽  
Normal Limits ◽  
Blood Smears ◽  
The Mean ◽  
And Gender ◽  
The Relationship

Abstract Background: Malaria is one of the most common diseased conditions across most developing countries caused by one of four species of Plasmodium. Electrolyte imbalance and mineral disturbances are majorly identified clinical symptoms in various infectious diseases including malaria. Malaria infection has also been shown to be associated with abnormalities in fluids, electrolytes and acid base balances which are capable of enhancing disease severity. The aim of this study was to investigate the effects of malaria infection on electrolytes parameters. Methods: Finger prick blood samples were collected from Two-Hundred (200) malaria-suspected subjects representing all age groups and gender. The Giemsa-stained blood smears were carefully examined according to standard procedure. Demographic information was obtained using structured questionnaires. Results: Pearson's Correlation Coefficient technique was used to investigate the relationship, and the strength of association between the variables. The mean bound of patients’ sodium level was observed to fall within the specified normal limits of 125mmol/L – 145mmol/L; except for positive malaria patients belonging to the MP-(++) which will fall below the 125mmol/L (i.e. 126.25mmol/L – 1.77mmol/L = 124.48mmol/L). Conclusion: In our study we found that Plasmodium falciparum showed more alteration in electrolytes parameters than Plasmodium vivax. This study discovered a significant linear relationship based on the Pearson product-moment correlation between creatinine and urea, potassium and chloride, potassium and creatinine, potassium and urea. The mean sodium and chloride level of positive malaria [MP-(++)] patients were observed to fall outside the normal limit.

scholarly journals The relationship between markers of antenatal iron stores and birth outcomes differs by malaria prevention regimen—a prospective cohort study

BMC Medicine ◽  
2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Holger W. Unger ◽  
Valentina Laurita Longo ◽  
Andie Bleicher ◽  
Maria Ome-Kaius ◽  
Stephan Karl ◽  
...  
Keyword(s):  
Birth Outcomes ◽  
Gestational Age ◽  
Malaria Infection ◽  
Low Birthweight ◽  
Malaria Prevention ◽  
Antenatal Visit ◽  
Adverse Birth Outcomes ◽  
Iron Stores ◽  
Twofold Increase ◽  
The Relationship

Abstract Background Iron deficiency (ID) has been associated with adverse pregnancy outcomes, maternal anaemia, and altered susceptibility to infection. In Papua New Guinea (PNG), monthly treatment with sulphadoxine-pyrimethamine plus azithromycin (SPAZ) prevented low birthweight (LBW; <2500 g) through a combination of anti-malarial and non-malarial effects when compared to a single treatment with SP plus chloroquine (SPCQ) at first antenatal visit. We assessed the relationship between ID and adverse birth outcomes in women receiving SPAZ or SPCQ, and the mediating effects of malaria infection and haemoglobin levels during pregnancy. Methods Plasma ferritin levels measured at antenatal enrolment in a cohort of 1892 women were adjusted for concomitant inflammation using C-reactive protein and α-1-acid glycoprotein. Associations of ID (defined as ferritin <15 μg/L) or ferritin levels with birth outcomes (birthweight, LBW, preterm birth, small-for-gestational-age birthweight [SGA]) were determined using linear or logistic regression analysis, as appropriate. Mediation analysis assessed the degree of mediation of ID-birth outcome relationships by malaria infection or haemoglobin levels. Results At first antenatal visit (median gestational age, 22 weeks), 1256 women (66.4%) had ID. Overall, ID or ferritin levels at first antenatal visit were not associated with birth outcomes. There was effect modification by treatment arm. Amongst SPCQ recipients, ID was associated with a 81-g higher mean birthweight (95% confidence interval [CI] 10, 152; P = 0.025), and a twofold increase in ferritin levels was associated with increased odds of SGA (adjusted odds ratio [aOR] 1.25; 95% CI 1.06, 1.46; P = 0.007). By contrast, amongst SPAZ recipients, a twofold increase in ferritin was associated with reduced odds of LBW (aOR 0.80; 95% CI 0.67, 0.94; P = 0.009). Mediation analyses suggested that malaria infection or haemoglobin levels during pregnancy do not substantially mediate the association of ID with birth outcomes amongst SPCQ recipients. Conclusions Improved antenatal iron stores do not confer a benefit for the prevention of adverse birth outcomes in the context of malaria chemoprevention strategies that lack the non-malarial properties of monthly SPAZ. Research to determine the mechanisms by which ID protects from suboptimal foetal growth is needed to guide the design of new malaria prevention strategies and to inform iron supplementation policy in malaria-endemic settings. Trial registration ClinicalTrials.gov NCT01136850.

scholarly journals Relationship between Duffy blood groups genotypes and malaria infection in different ethnic groups of Choco- Colombia

2012 ◽  
pp. 189-195 ◽  
Author(s):  
Lina Gonzalez ◽  
Jorge Vega ◽  
Jose-Luis Ramirez ◽  
Gabriel Bedoya ◽  
Jaime Carmona-Fonseca ◽  
...  
Keyword(s):  
Malaria Infection ◽  
Cross Sectional Study ◽  
Natural Resistance ◽  
Asymptomatic Malaria ◽  
Ethnic Communities ◽  
Cross Sectional ◽  
The Status ◽  
The Relationship ◽  
Common Infection ◽  
Thick Smear

Background: The negative homozygous condition for the Duffy blood group (Fy-/Fy-) confers natural resistance to Plasmo­dium vivax infection. In this direction, studies carried out in Colombia are scarce Objective: To describe the relationship between Duffy genotypes in three ethnic communities in La Italia (Chocó) and malaria infection. Methodology: a descriptive, cross-sectional study in symptomatic and asymptomatic malaria subjects. Sample size : Afro American, 73; Amerindian (Emberá), 74 and Mestizo, 171. Presence of Plasmodium infection was assessed by thick smear and the status of the Duffy gene by PCR and RFLP in order to identify the substitutions T-46C y A131G which origin the genotypes T/T, T/C , C/C y G/G, G/A, A/A. Results: Infection by Plasmodium was detected in 17% with 62% due to P. falciparum and 27% to P. vivax. Duffy genotypes were significantly associated to ethnicity (p= 0,003). Individuals with the C/C, A/A diplotype were exclusively infected by P. falciparum, whereas other diplotypes were infected with either species. In the Amerindian and Mestizo populations, the frequency of the T-46 allele was 0,90-1,00, among Afrocolombians this was 0,50, equal to the C allele and with absence of heterozygous At locus 131, the highest frequency of the G allele was 0,30 in Amerindians and the A allele was 0,69 in Afro­colombians. Conclusions: In the Amerindian and mestizo populations studied, a predominance of the allele T-46 (FY+) was observed, but P. vivax was not the most common. Infection by P. vivax was out ruled in all FY- individuals.

scholarly journals Haematological profile of children with malaria in Sorong, West Papua, Indonesia

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Syilvia Jiero ◽  
Ayodhia Pitaloka Pasaribu
Keyword(s):  
Malaria Infection ◽  
Clinical Symptoms ◽  
Public Health Problem ◽  
Malaria Diagnosis ◽  
White Blood Count ◽  
P Value ◽  
Major Public Health Problem ◽  
Age Group ◽  
Haematological Profile ◽  
West Papua

Abstract Background Malaria remains a major public health problem in Indonesian Papua, with children under five years of age being the most affected group. Haematological changes, such as cytopenia that occur during malaria infection have been suggested as potential predictors and can aid in the diagnosis of malaria. This study aimed to assess the haematological alterations associated with malaria infection in children presenting with signs and symptoms of malaria. Methods A retrospective study was performed by collecting data from the medical records of malaria patients at Sorong Regional General Hospital, Sorong, West Papua, Indonesia, both from outpatient and inpatient clinics, from January 2014 until December 2017. The laboratory profile of children suffering from malaria was evaluated. Results One hundred and eighty-two children aged 1 month to 18 years old were enrolled. The subjects were mostly male (112, 61.5%) with a mean age of 6.45 years (SD = 4.3 years). Children below 5 years of age suffered the most from malaria in this study (77, 42.3%). One hundred two subjects (56%) were infected with Plasmodium falciparum. Half of the enrolled subjects (50%) had haemoglobin level (Hb) between 5.1 and 10 gr/dL. A total of 41 children (53.2%) less than 5 years old suffered from P. falciparum infection. In the age group of 5–10 years, there were 34 children (57.6%) who suffered from P. falciparum, and in the age group > 10 years, 27 children (58.7%) suffered from P. falciparum infection. Only 4 subjects (5.2%) in the less than 5 years old age group had mixed malaria infection. Among eight predictors of the haematological profile, there were five predictors that were significantly associated with the diagnostic criteria, namely haemoglobin, haematocrit, leukocytes, platelets and monocytes (p < 0.05). Generally, clinical symptoms are not significantly associated with a malaria diagnosis, and only one variable showed a significant relationship, pale, with a P value of 0.001. Conclusions Children with malaria had changes in some haematological markers, with anaemia, low platelet count, white blood count, and lymphocyte count being the most important predictors of malaria infection in the study area. These markers could be used to raise suspicion of malaria in children living in high endemic areas, such as West Papua.

scholarly journals Decision making under ambiguity and risk in adolescent-onset schizophrenia

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Dandan Li ◽  
Fengyan Zhang ◽  
Lu Wang ◽  
Yifan Zhang ◽  
Tingting Yang ◽  
...  
Keyword(s):  
Decision Making ◽  
Executive Function ◽  
Iowa Gambling Task ◽  
Clinical Symptoms ◽  
Healthy Controls ◽  
Syndrome Scale ◽  
Significant Difference ◽  
Abnormal Pattern ◽  
Negative Syndrome ◽  
The Relationship

Abstract Objective Numerous studies have identified impaired decision making (DM) under both ambiguity and risk in adult patients with schizophrenia. However, the assessment of DM in patients with adolescent-onset schizophrenia (AOS) has been challenging as a result of the instability and heterogeneity of manifestations. The Iowa Gambling Task (IGT) and Game of Dice Task (GDT), which are frequently used to evaluate DM respectively under ambiguity and risk, are sensitive to adolescents and neuropsychiatric patients. Our research intended to examine the performance of DM in a relatively large sample of patients with AOS using the above-mentioned two tasks. We also aimed to take a closer look at the relationship between DM and symptom severity of schizophrenia. Methods We compared the performance of DM in 71 patients with AOS and 53 well-matched healthy controls using IGT for DM under ambiguity and GDT for DM under risk through net scores, total scores and feedback ration. Neuropsychological tests were conducted in all participants. Clinical symptoms were evaluated by using Positive and Negative Syndrome Scale (PANSS) in 71 patients with AOS. Pearson’s correlation revealed the relationship among total score of DM and clinical and neuropsychological data. Results Compared to healthy controls, patients with AOS failed to show learning effect and had a significant difference on the 5th block in IGT and conducted more disadvantageous choices as well as exhibited worse negative feedback rate in GDT. Apart from DM impairment under risk, diminished DM abilities under ambiguity were found related to poor executive function in AOS in the present study. Conclusions Our findings unveiled the abnormal pattern of DM in AOS, mainly reflected under the risky condition, extending the knowledge on the performance of DM under ambiguity and risk in AOS. Inefficient DM under risk may account for the lagging impulse control and the combined effects of developmental disease. In addition, our study demonstrated that the performance on IGT was related to executive function in AOS.

scholarly journals Factors associated with sub-microscopic placental malaria and its association with adverse pregnancy outcomes among HIV-negative women in Dar es Salaam, Tanzania: a cohort study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Aneth Vedastus Kalinjuma ◽  
Anne Marie Darling ◽  
Ferdinand M. Mugusi ◽  
Ajibola Ibraheem Abioye ◽  
Fredros O. Okumu ◽  
...  
Keyword(s):  
Birth Weight ◽  
Pregnancy Outcomes ◽  
Malaria Infection ◽  
Placental Malaria ◽  
Adverse Pregnancy Outcomes ◽  
Placental Infection ◽  
Factors Associated ◽  
Adverse Pregnancy ◽  
Prevention Methods ◽  
Dna Pcr

Abstract Background Malaria infection during pregnancy has negative health consequences for both mothers and offspring. Sub-microscopic malaria infection during pregnancy is common in most African countries. We sought to identify factors associated with sub-microscopic placental malaria, and its association with adverse pregnancy outcomes among HIV-negative pregnant women in Dar es Salaam, Tanzania. Methods We recruited a cohort of pregnant women during their first trimester and assessed for the occurrence of placental malaria and pregnancy outcomes. The follow-up was done monthly from recruitment until delivery. Histopathology placental malaria positive results were defined as the presence of malaria pigment or parasitized erythrocytes on the slide (histology-positive (HP)), and the sub-microscopic placental infection was defined as positive Plasmodium falciparum DNA by polymerase chain reaction (DNA PCR) amplification in a negative histopathology test. Adverse pregnancy outcomes investigated included low birth weight (birth weight below 2.5 kg), prematurity (live birth below 37 weeks), and small-for-gestational-age (SGA) (live born with a birth weight below 10th percentile for gestational age and sex). Weighted baseline category logit, log-binomial, and log-Poisson models were used to assess factors associated with placental malaria, and its association with adverse pregnancy outcomes. Results Among 1115 women who had histopathology and DNA PCR performed, 93 (8%) had HP placental infection, and 136 (12%) had the sub-microscopic placental infection. The risk of sub-microscopic placental malaria was greater in women who did not use mosquito prevention methods such as bed nets, fumigation, or mosquito coils (odds ratio (OR) = 1.75; 95% confidence interval (CI): 1.05–2.92; P = 0.03) and in women who were anemic (OR = 1.59; 95% CI: 1.20–2.11; P = 0.001). Women who were underweight had reduced odds of sub-microscopic placental malaria infection (OR = 0.33; 95% CI: 0.17–0.62; P = 0.001). Women who were overweight/obese had 1.48 times higher the odds of HP placental malaria compared to normal weight (OR = 1.48; 95% CI: 1.03–2.11; P = 0.03). HP placental malaria infection was associated with an increased risk of SGA births (RR = 1.30, 95% CI: 0.98–1.72, P = 0.07). In contrast, the sub-microscopic infection was associated with a reduced risk of SGA births (RR = 0.61, 95% CI: 0.43–0.88, P = 0.01). Placental malaria was not associated with low birth weight or prematurity. Conclusion Malaria prevention methods and maternal nutrition status during early pregnancy were important predictors of sub-microscopic placental malaria. More research is needed to understand sub-microscopic placental malaria and the possible mechanisms mediating the association between placental malaria and SGA.

Acquired clinical immunity to malaria in non-human primates co-infected with Schistosoma and Plasmodium parasites

2021 ◽  
Author(s):  
Ruth K. Nyakundi ◽  
Jann Hau ◽  
Paul Ogongo ◽  
Onkoba Nyamongo ◽  
Maamum Jeneby ◽  
...  
Keyword(s):  
T Cells ◽  
Malaria Control ◽  
Malaria Infection ◽  
Memory T Cells ◽  
Clinical Symptoms ◽  
Plasmodium Knowlesi ◽  
Acquired Immunity ◽  
Control Group ◽  
Chronic Infections ◽  
Long Term Impact

Background. Naturally acquired immunity to malaria develops over several years and can be compromised by concomitant infections. This study explored the influence of chronic schistosomiasis on clinical outcome and immunity to repeated malaria infection. Methods. Two groups of baboons (n=8 each), were infected with Schistosoma mansoni cercariae to establish chronic infections. One of the two groups was treated with Praziquantel to eliminate schistosome infection. The two groups plus a new malaria control group (n=8), were inoculated three times with Plasmodium knowlesi parasites at one-month intervals. Clinical data, IgG, IgG1, memory T-cells and monocyte levels were recorded. Results. We observed after three P. knowlesi infections; i) reduced clinical symptoms in all groups with each subsequent infection, ii) increase IgG and IgG1in the malaria control (Pk-only) group iii) increased IgG and IgG1, CD14 + and CD14 - CD16 + in the Schistosoma treated (Schisto/PZQ+Pk) group and iv) significantly lower IgG and IgG1 levels compared to Pk-only, reduced CD4 + CD45RO + and increased CD14 - CD16 + cells in the co-infected (Schisto+Pk) group. Conclusion. Chronic S. mansoni does not compromise establishment of clinical immunity after multiple malaria infections with non-classical monocytes seeming to play a role. Failure to develop robust antibody and memory T-cells may have a long-term impact on acquired immunity to malaria infection.

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