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1.
J Vector Borne Dis ; 61(1): 81-89, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38648409

RESUMO

BACKGROUND OBJECTIVES: Malaria due to Plasmodium falciparum (Pf) remains a major public threat in India. Artemisinin-based combination therapy (ACT) has been the country's first-line drug for uncomplicated Pf malaria. In 2013-2014, Artesunate plus sulfadoxine (AS+SP) was replaced by Artemether Lumefantrine (AL) as the first- line antimalarial in North East (NE) states of the country which are endemic for Pf malaria. Regular monitoring of antimalarial drugs is of utmost importance to achieve the goal of elimination. This study aimed to assess the efficacy and safety of ACT for treating uncomplicated Pf malaria in the NE states of India. METHODS: A prospective study of 28-day follow-up was conducted to monitor the efficacy and safety of AL from 2018-2019 in four districts, Udalgiri, Meghalaya, Lawngtlai, and Dhalai of NE, India. The clinical and parasitological response and the polymorphism analysis of the Pfdhps, P/dhfr, and Pfkelch 13 gene were evaluated. RESULTS: A total of 234 patients were enrolled in the study out of 216 patients who completed the follow-up to 28 days. One-hundred percent adequate clinical and parasitological responses (ACPR) were observed with polymerase chain reaction (PCR) correction. The genotype results suggest no recrudescence in the treatment-failure patients. The classical single nucleotide polymorphisms (SNP) in the Pfdhfr gene was S108N (94.9%), followed by C59R (91.5%), whereas, in the Pfdhps gene, the common SNP was A437G (79.6%), followed by S3436A. No associated or validated mutations were found in the propeller region of the PfKelch13 gene. INTERPRETATION CONCLUSION: AL was efficacious and safe in uncomplicated P. falciparum malaria in North East India. In contrast, mutations in the genes responsible for sulfadoxine and pyrimethamine resistance have been fixed in northeast India's population.


Assuntos
Antimaláricos , Artemisininas , Quimioterapia Combinada , Malária Falciparum , Plasmodium falciparum , Malária Falciparum/tratamento farmacológico , Malária Falciparum/parasitologia , Índia , Humanos , Artemisininas/uso terapêutico , Artemisininas/efeitos adversos , Antimaláricos/uso terapêutico , Antimaláricos/administração & dosagem , Antimaláricos/efeitos adversos , Feminino , Masculino , Plasmodium falciparum/genética , Plasmodium falciparum/efeitos dos fármacos , Estudos Prospectivos , Adulto , Adulto Jovem , Adolescente , Pessoa de Meia-Idade , Resultado do Tratamento , Criança , Pré-Escolar , Combinação Arteméter e Lumefantrina/uso terapêutico , Sulfadoxina/uso terapêutico , Combinação de Medicamentos
2.
Am J Trop Med Hyg ; 110(3): 431-435, 2024 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-38350136

RESUMO

Since 2010, malaria rapid diagnostic tests (RDTs) are widely used to detect malaria. The Indian Council of Medical Research-National Institute of Malaria Research performed lot testing (LT) according to WHO procedures since 2016. Lot testing is performed to evaluate the lot-to-lot variation in performance of malaria RDTs. Four sets of positive quality control (QC) panels for P. falciparum (Pf) and P. vivax (Pv) and 10 negative panels tested RDTs. RDTs were reported as pass, failed, or deferred on the basis of WHO criteria. In the past 5 years, 275 lots containing 15,488 RDT kits for malaria diagnosis were subjected to LT. The monovalent RDTs (n = 1,216), based on either Pf histidine rich protein 2 (HRP2) or Pan-Plasmodium lactate dehydrogenase (Pan-pLDH) antigens, showed 90.4% sensitivity and 100% specificity, whereas RDTs based on HRP2 + Pan-pLDH or HRP2 + pLDH (n = 13,924) had sensitivity 95.6% and specificity 99.5%, respectively. RDTs based on PfHRP2 + Pv-pLDH + Pan-pLDH (n = 348) had 100% sensitivity and specificity. In a comparison between HRP2 + pLDH or HRP2 + Pan-pLDH to HRP2 + pLDH + Pan-pLDH RDTs, it was found that the sensitivity of PfHRP2 with Pan-pLDH RDTs (n = 2,382) was only 83%. Of the 275 lots analyzed, 15 lots of PfHRP2 with Pan-pLDH were deferred. The QC panel for Pf revealed a faint Pan band in the tested lots, which is a cause for concern. The results of deferred lots were reported to concerned government agencies. Quality-compromised RDTs may lead to an incorrect diagnosis. It is critical to have a QC system in place for effective malaria management.


Assuntos
Malária Falciparum , Malária Vivax , Malária , Plasmodium , Humanos , Malária Falciparum/diagnóstico , Plasmodium falciparum , Testes de Diagnóstico Rápido , Testes Diagnósticos de Rotina/métodos , Malária/diagnóstico , Antígenos de Protozoários , Malária Vivax/diagnóstico , Sensibilidade e Especificidade , L-Lactato Desidrogenase , Índia , Proteínas de Protozoários
3.
JAC Antimicrob Resist ; 5(6): dlad135, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38098890

RESUMO

Background: Antibody-deficient patients are at high risk of respiratory tract infections. Many therefore receive antibiotic prophylaxis and have access to antibiotics for self-administration in the event of breakthrough infections, which may increase antimicrobial resistance (AMR). Objectives: To understand AMR in the respiratory tract of patients with antibody deficiency. Methods: Sputum samples were collected from antibody-deficient patients in a cross-sectional and prospective study; bacteriology culture, 16S rRNA profiling and PCR detecting macrolide resistance genes were performed. Bacterial isolates were identified using MALDI-TOF, antimicrobial susceptibility was determined by disc diffusion and WGS of selected isolates was done using Illumina NextSeq with analysis for resistome and potential cross-transmission. Neutrophil elastase was measured by a ProteaseTag immunoassay. Results: Three hundred and forty-three bacterial isolates from sputum of 43 patients were tested. Macrolide and tetracycline resistance were common (82% and 35% of isolates). erm(B) and mef(A) were the most frequent determinants of macrolide resistance. WGS revealed viridans streptococci as the source of AMR genes, of which 23% also carried conjugative plasmids linked with AMR genes and other mobile genetic elements. Phylogenetic analysis of Haemophilus influenzae isolates suggested possible transmission between patients attending clinic.In the prospective study, a negative correlation between sputum neutrophil elastase concentration and Shannon entropy α-diversity (Spearman's ρ = -0.306, P = 0.005) and a positive relationship with Berger-Parker dominance index (ρ = 0.502, P < 0.001) were found. Similar relationships were noted for the change in elastase concentration between consecutive samples, increases in elastase associating with reduced α-diversity. Conclusions: Measures to limit antibiotic usage and spread of AMR should be implemented in immunodeficiency clinics. Sputum neutrophil elastase may be a useful marker to guide use of antibiotics for respiratory infection.

4.
J Pak Med Assoc ; 73(9): 1782-1787, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37817684

RESUMO

OBJECTIVE: To evaluate the factors associated with idiopathic pulmonary fibrosisrisk. Methods: The case-controlstudywas conductedfromJanuary 5, 2017,toSeptember 4, 2018, attheprivate-sectorAga Khan University Hospital and the public-sector Jinnah Postgraduate Medical Centre, two large tertiary care centres in Karachi, andcomprisedadultpatientsof eithergenderwithdiagnosedidiopathicpulmonary fibrosis, asdefinedby the IndianChest Registry. Subjects without idiopathic pulmonary fibrosis but registered with the department of pulmonology of the two hospitalswere enrolledas controls.Datawas collectedusinga structuredquestionnaire, andanthropometricmeasurements were noted for each subject. Gastroesophageal reflux disease was assessed using GerdQ. This wasfollowed by serological evaluations and spirometry. Data was analysed using SPSS 21. RESULTS: Of the 459 subjects, 154(33.6%)were cases and305(66.4%)were controls.Amongthe cases, 81(52.6%)were females and 73(47.4%) were males with mean age 66.1±10.9 years. Among the controls, 162(53.1%) were females and 143(46.9%) were males with mean age 64.6±11.1 years(p>0.05.)The most common ethnicity wasUrdu-speaking; 89(58%) among the cases and 150(49%) among the controls (p<0.05). Ethnicity, number of persons in the household per room, and type of house were significantly associated with the risk of developing idiopathic pulmonary fibrosis(p<0.05). CONCLUSIONS: Ethnicity,type of house and the number of personsin a household perroom were found to be the significant risk factorsfor idiopathic pulmonary fibrosisIPF.


Assuntos
Refluxo Gastroesofágico , Fibrose Pulmonar Idiopática , Masculino , Feminino , Humanos , Pessoa de Meia-Idade , Idoso , Paquistão/epidemiologia , Fatores de Risco , Fibrose Pulmonar Idiopática/epidemiologia , Refluxo Gastroesofágico/complicações , Estudos de Casos e Controles
5.
Curr Top Med Chem ; 23(24): 2300-2331, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37518999

RESUMO

BACKGROUND: Genus Torilis (Apiaceae) known as hedge parsley, encompasses 11-13 species distributed worldwide and shows potential pharmacological uses. Its phytochemical pattern is highly diversified including many phenolic and terpenic compounds. OBJECTIVE: This research-review provides new highlighting of structural organizations, structure-activity trends, taxonomical, tissue and geographical distribution of phytocompounds of Torilis genus from extensive statistical analyses of available data. METHODS: In extenso, exploration of documented literature and statistical data analyses were applied to update the phytochemical pool of the genus under several aspects including structural diversity, geographical distribution, biological compartmentations and pharmacological activities. RESULTS: Phytoconstituents were classified into homogeneous clusters that revealed to be associated with chemical constitutions (aglycone types, chemical groups) and distributions (through species, tissues, geographical). About bioactivities, terpenes were studied from a pharmacological point of view with relatively high frequencies for antifungal, antibacterial, cytotoxic and anti-inflammatory activities. Preliminary structure-activity relationships were highlighted implying opposite effects between hydroxylation and methylation in favor of different activities. Crude extracts and isolated compounds have shown several biological activities (antibacterial, anticancer, antiangiogenic, antiproliferative, etc.), thus providing authentic scientific proof for their diverse uses in folk medicines. CONCLUSION: The phytochemistry of the genus Torilis promises important perspectives in matters of pharmacological activities. These perspectives call for further investments in pharmacology because of (i) unbalance between phenolic and terpenic compounds according to the countries and (ii) more advanced current states of structural elucidations compared to biological evaluations.

6.
Indian J Med Res ; 157(1): 23-29, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-37040223

RESUMO

Background & objectives: India targets malaria elimination by 2030 in a phased manner, so malaria's assured diagnosis is crucial. Introduction of rapid diagnostic kits in India in 2010 has revolutionized malaria surveillance. The storage temperature of rapid diagnostic tests (RDTs), kit components and handling in transportations impact the results of RDTs. Therefore, quality assurance (QA) is required before it reaches end-users. The Indian Council of Medical Research-National Institute of Malaria Research (ICMR-NIMR) has a World Health Organization (WHO) recognized lot-testing laboratory facility to assure the quality of RDTs. Methods: The ICMR-NIMR receives RDTs from different manufacturing companies as well as various agencies such as National and State Programmes and Central Medical Services Society. The WHO standard protocol is followed to conduct all the tests, including long-term and post-dispatch testing. Results: A total of 323 lots tested during January 2014-March 2021 were received from different agencies. Amongst them, 299 lots passed the quality of test and 24 failed. In long-term testing, 179 lots were tested and only nine failed. A total of 7741 RDTs were received from end-users for post-dispatch testing of which 7540 qualified the QA test with a score of 97.4 per cent. Interpretation & conclusions: RDTs received for quality testing showed compliance with QA evaluation of malaria RDTs based on the protocol recommended by the WHO. However, continuous monitoring of the quality of RDTs is required under QA programme. Quality-assured RDTs have a major role, especially in areas where low parasitaemia of parasites persists.


Assuntos
Testes Diagnósticos de Rotina , Malária , Humanos , Testes Diagnósticos de Rotina/métodos , Malária/diagnóstico , Testes de Diagnóstico Rápido , Índia , Comércio
7.
IDCases ; 31: e01653, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36589765

RESUMO

A young male returned from the Democratic Republic of the Congo (DRC) to India after four months during his official work. Within a week of his arrival, he developed a high-grade fever with nausea and was hospitalized in a private hospital in New Delhi. He was diagnosed with malaria, treated with an artesunate injection as antimalarial, and discharged on day 5th from the hospital. A week later, he was diagnosed with malaria and dengue positive at ICMR-National Institute of Malaria Research, New Delhi. Artesunate with sulphadoxine and pyrimethamine (AS+SP) was administered following India's malaria treatment policy. However, high-grade fever, along with the asexual stage of the P. falciparum parasite, was observed within 28 days of treatment with AS+SP, signifying late treatment failure (LTF). Further, the molecular analysis from both the days of episodes was analyzed using genomic DNA from dried blood spots, revealing resistance to sulphadoxine-pyrimethamine with mutations at codons pfdhfr 51I, pfdhfr 59 R, pfdhfr 108 N, pfdhps 437 A, pfdhps 581 G. No functional mutation associated was found in pfKelch13, but interestingly the sensitive codons to chloroquine (CQ) (wild type pfcrtK76 and pfmdrN86) revealed the probably reversible CQ sensitivity in the sample from DRC.

8.
J Vector Borne Dis ; 60(4): 449-452, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38174526

RESUMO

Background & objectives: Malaria is a parasitic disease spread by Plasmodium parasite. Microscopy, lateral flow devices such as the Rapid Diagnostic Test (RDT), molecular methods such as Polymerase Chain Reaction (PCR), isothermal methods such as Loop-mediated isothermal amplification (LAMP), and other diagnostic methods are available for malaria. On the other hand, the accuracy of molecular diagnosis is dependent on genomic DNA isolation. A quick method for isolating and subjectively determining the presence of genomic DNA from blood, dried blood spot (DBS), and rapid diagnostic test (RDT), was identified. Methods: We have developed a protocol for isolating DNA from blood, DBS, and RDTs using the HUDSON Buffer (TCEP and EDTA). Isolated genomic DNA was seen with SYBR Safe DNA stain (1X) under a UV transilluminator without running in 0.8 percent gel electrophoresis or using a spectrophotometer. Results: The technique for DNA isolation was accurate for the presence of malaria parasite genomic DNA from positive samples confirmed by microscopy with a sensitivity of 76% and specificity of 78.67% and RDT with a sensitivity of 88% and specificity of 66%. The requirements were minimal, and the process took 30 minutes for a hundred sample processing. Interpretation & conclusion: Finding a fast and reliable method of separating nucleic acids from many samples is crucial. This approach extracts intact genomic DNA in under ten minutes, making it ideal for large-scale investigations.


Assuntos
Malária Falciparum , Malária , Plasmodium , Humanos , Testes de Diagnóstico Rápido , Sensibilidade e Especificidade , Malária/diagnóstico , Plasmodium/genética , Reação em Cadeia da Polimerase , Plasmodium falciparum/genética , Testes Diagnósticos de Rotina/métodos , Malária Falciparum/diagnóstico
9.
Diagnostics (Basel) ; 12(8)2022 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-36010365

RESUMO

Northeastern states of India share international borders with Myanmar, China, Bangladesh, and Bhutan, contributing 7.45% of the overall malaria cases in the country. Mizoram accounts for the highest malaria burden in the northeastern states, with perennial transmission in the hilly and deep-forested areas. Plasmodium falciparum (93%) is the most prevalent human Plasmodium species, followed by P. vivax; however, information on P. ovale and P. malariae is negligible. Rapid diagnostic tests (RDTs) are the most preferred malaria diagnostic tool followed by microscopy in this high malaria-endemic region. The present epidemiological study was carried out in July and August 2019 to assess the malaria burden in and around the Chawngte primary health center, Lawngtlai District of Mizoram, using RDTs and microscopy as diagnostic tools. World Health Organization-certified level I microscopists examined the blood smears. Diagnosis using RDTs resulted in 151 malaria cases (P. falciparum: 136; P. vivax: 15) out of 948 screened fever cases. However, blood smear examination detected 179 cases (P. falciparum: 154; P. vivax: 17; mixed P. falciparum + P. vivax infection: 3; P. malariae: 5). Analysis revealed that the risk of malaria infection was higher in the ≥5-year-old subjects than in the under-5 age group. The mean parasite density of P. malariae (1455.00/µL blood) was the lowest; cf. with P. falciparum: 12,275.08/µL blood. Surveillance at the point-of-care level using microscopy was able to detect all the four human Plasmodium species and their mixed infections, including P. malariae, which were missed with RDTs. Thus, the quality of microscopy along with trained manpower should be strengthened to diagnose all human malaria parasite species (particularly P. malariae and P. ovale) until the molecular tools are deployed at the field level to achieve malaria elimination by 2030.

10.
Am J Trop Med Hyg ; 106(3): 831-840, 2022 01 10.
Artigo em Inglês | MEDLINE | ID: mdl-35008062

RESUMO

Plasmodium vivax malaria elimination requires radical cure with chloroquine/primaquine. However, primaquine causes hemolysis in glucose-6-phosphate dehydrogenase-deficient (G6PDd) individuals. Between February 2016 and July 2017 in Odisha State, India, a prospective, observational, active pharmacovigilance study assessed the hematologic safety of directly observed 25 mg/kg chloroquine over 3 days plus primaquine 0.25 mg/kg/day for 14 days in 100 P. vivax patients (≥ 1 year old) with hemoglobin (Hb) ≥ 7 g/dL. Pretreatment G6PDd screening was not done, but patients were advised on hemolysis signs and symptoms using a visual aid. For evaluable patients, the mean absolute change in Hb between day 0 and day 7 was -0.62 g/dL (95% confidence interval [CI]: -0.93, -0.31) for males (N = 53) versus -0.24 g/dL (95%CI: -0.59, 0.10) for females (N = 45; P = 0.034). Hemoglobin declines ≥ 3 g/dL occurred in 5/99 (5.1%) patients (three males, two females); none had concurrent clinical symptoms of hemolysis. Based on G6PD qualitative testing after study completion, three had a G6PD-normal phenotype, one female was confirmed by genotyping as G6PDd heterozygous, and one male had an unknown phenotype. A G6PDd prevalence survey was conducted between August 2017 and March 2018 in the same region using qualitative G6PD testing, confirmed by genotyping. G6PDd prevalence was 12.0% (14/117) in tribal versus 3.1% (16/509) in nontribal populations, with G6PD Orissa identified in 29/30 (96.7%) of G6PDd samples. Following chloroquine/primaquine, notable Hb declines were observed in this population that were not recognized by patients based on clinical signs and symptoms.


Assuntos
Antimaláricos , Deficiência de Glucosefosfato Desidrogenase , Malária Vivax , Antimaláricos/efeitos adversos , Cloroquina/efeitos adversos , Feminino , Deficiência de Glucosefosfato Desidrogenase/genética , Hemoglobinas , Hemólise , Humanos , Malária Vivax/epidemiologia , Masculino , Farmacovigilância , Plasmodium vivax , Primaquina/efeitos adversos , Estudos Prospectivos
11.
SN Compr Clin Med ; 4(1): 40, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35071986

RESUMO

The aim of this study was to determine the factors associated with persistent sputum positivity at the end of 2 months of treatment in patients presenting with (drug-susceptible) pulmonary tuberculosis at a tertiary care hospital in Karachi. A cross-sectional study was conducted at the Department of Chest Medicine (Ward 12), Jinnah Postgraduate Medical Center (JPMC), Karachi, over 6 months. A sample of 73 consenting, newly diagnosed, smear-positive drug-susceptible pulmonary tuberculosis patients was studied. Demographic (age, gender, height, weight and duration of tuberculosis, BMI, socioeconomic, occupational, marital, educational and residential statuses) and clinical factors (chest X-ray extent and cavities, initial smear results, diabetic and smoking statuses) which may be associated with sputum non-conversion were entered in a proforma. Patients were followed up at 2 months of treatment with a sputum smear. Data analysis was done on SPSS (Statistical Package for Social Sciences-version 20.0). Rate of sputum positivity after 2 months of anti-tubercular drug treatment was 17.8%. None of the above-mentioned demographic and clinical factors was associated with persistence of sputum positivity except for the presence of CXR cavities, which made it 5.5 times more likely that the patient would remain smear-positive at 2 months (p = 0.035). The finding of chest radiograph cavities makes it highly likely that a pulmonary tuberculosis patient may remain infectious or have an unfavorable outcome despite taking treatment for 2 months. Clinicians and national policy-makers should thus bear in mind the implications this can have with regard to disease control and therefore pay particular attention to such patients in terms of stringent monitoring and directly observed treatment short-course (DOTS) provision. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s42399-021-01098-6.

12.
J Vector Borne Dis ; 59(4): 375-379, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36751769

RESUMO

India's target of malaria elimination by 2030 may not be achieved solely by detecting Plasmodium falciparum and P. vivax, the two common Plasmodium species causing infections in humans. Sporadic reports have been documented on other Plasmodium species in the country, associated mostly with travel history. A febrile patient of Indian origin (Non-resident Indian (NRI)) was diagnosed with an infection of Plasmodium ovale curtisi malaria on his arrival from Sudan. A case report from Kerala was published in December 2020 and this is second report. Due to the inaccessibility of molecular techniques for routine diagnosis, this neglected non-falciparum malaria goes undetected. For an accurate diagnosis, suspected malaria cases should be tested using PCR and other advanced methods.


Assuntos
Malária Vivax , Malária , Plasmodium ovale , Plasmodium , Humanos , Malária/diagnóstico , Índia
13.
J Pak Med Assoc ; 71(8): 1935-1939, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34418004

RESUMO

OBJECTIVES: To compare the diagnostic accuracy of two systems in predicting mortality among patients with acute exacerbation of chronic obstructive pulmonary disease. METHODS: The cross-sectional study was conducted from November 2017 to June 2018 in the Department of Chest Medicine, Jinnah Postgraduate Medical Centre, Karachi, and comprised patients with acute exacerbation of chronic obstructive pulmonary disease. Dyspnoea-eosinopenia-consolidation-acidaemia-atrial fibrillation system was compared with acute physiology and chronic health evaluation II scoring system after mortality scores were calculated for each patient. Data was analysed using SPSS 21. RESULTS: Of the 210 patients, 147(70%) were males and 63(30%) were females. Overall, 59(28.1%) patients died during hospital stay. The mean dyspnoea-eosinopenia-consolidation-acidaemia-atrial fibrillation score was 2.31±0.93 while the mean acute physiology and chronic health evaluation II score was 15.8±7.2. A decision threshold of dyspnoea-eosinopenia-consolidation-acidaemia-atrial fibrillation score >2 had a sensitivity of 84.6% and specificity of 82.3% while acute physiology and chronic health evaluation II score had sensitivity of 53.9% and specificity of 76.5%. CONCLUSIONS: Both scoring systems were found to be good predictors of mortality, but dyspnoea-eosinopenia-consolidationacidaemia-atrial fibrillation score was a simpler and effective clinical tool.


Assuntos
Fibrilação Atrial , Doença Pulmonar Obstrutiva Crônica , APACHE , Estudos Transversais , Feminino , Mortalidade Hospitalar , Humanos , Masculino , Valor Preditivo dos Testes
14.
Trans R Soc Trop Med Hyg ; 115(10): 1198-1206, 2021 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-33580962

RESUMO

BACKGROUND: Malaria elimination requires targeting asymptomatic and low-density Plasmodium infections that largely remain undetected. Therefore we conducted a cross-sectional study to estimate the burden of asymptomatic and low-density Plasmodium infection using conventional and molecular diagnostics. METHODS: A total of 9118 participants, irrespective of age and sex, were screened for malaria using rapid diagnostic tests (RDTs), microscopy and polymerase chain reaction. RESULTS: Among the participants, 707 presented with symptoms and 8411 without symptoms, of which Plasmodium was present in 15.6% (110/707) and 8.1% (681/8411), respectively. Low-density infection was found in 5.1% (145/2818) of participants and 8327 of 9118 were Plasmodium negative. Endemicity was propotional to asymptomatic infections (high endemicity 11.1% [404/3633] vs low endemicity 5.8% [277/4778]; odds ratio [OR] 2.0 [95% confidence interval {CI} 1.7 to 2.4]) but inversely related to low-density infection (high endemicity 3.7% [57/1545] vs low endemicity 6.9% [88/1273]; OR 1.9 [95% CI 1.4 to 2.7]). The spleen rate in children 2-9 y of age was 17.9% (602/3368) and the enlarged spleen index was 1.6. Children between 8 and 14 y showed higher odds for asymptomatic (adjusted OR [aOR] 1.75 [95% CI 1.4 to 2.2]) and low-density infections (aOR 0.63 [95% CI 0.4 to 1.0)] than adults. CONCLUSIONS: The prevalence of asymptomatic and low-density Plasmodium infection undermines the usefulness of standard diagnostic tools used by health agencies. This necessitates deploying molecular tools in areas where malaria microscopy/RDTs indicate a dearth of infection.


Assuntos
Malária Falciparum , Malária , Plasmodium , Adulto , Infecções Assintomáticas/epidemiologia , Criança , Estudos Transversais , Humanos , Índia/epidemiologia , Malária/diagnóstico , Malária/epidemiologia , Plasmodium falciparum , Prevalência , Estações do Ano
15.
Cureus ; 12(11): e11346, 2020 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-33304681

RESUMO

Background Social media is a crucial part of our daily life. Facebook, being the biggest social media platform, plays a significant role in the spread of information influencing the global response to the COVID-19 pandemic. Health care agencies like the World Health Organization (WHO) and Centers for Disease Control and Prevention (CDC) use social media as a platform to impart information regarding COVID-19; simultaneously, there is a spread of misinformation on social media, masking the credible sources of information. Our research aims to assess the utility of Facebook in providing misinformation and testing its "fact-check policy." Methods An online search was conducted on Facebook by a newly created account to eliminate bias. The Facebook search bar was used to investigate multiple keywords. Data were tabulated in Microsoft Excel (Microsoft Corporation, Redmond, WA). Descriptive statistical analysis of Facebook accounts and posts was done using the Statistical Package for the Social Sciences (SPSS) version 26 (IBM Corp., Armonk, NY) while statistical importance was set a priority at a p-value of 0.05. Results Our study consisted of 454 Facebook posts. Most (22.5%) were posted by verified accounts and 23.9% by informal individual/group accounts. The tone for most (40.4%) COVID-19 information was serious while the most common (43.9%) topic was medical/public health. In total, 22.3% included misinformation, 19.6% were unverifiable, and 27.5% included correct information verifiable by the WHO or CDC. Conclusions Misinformation/unverifiable information related to the COVID-19 crisis is spreading at a distressing rate on social media. We quantified the misinformation and tested Facebook's "fact-check policy." We advise strict initiatives to control this infodemic and advise future researches to evaluate the accuracy of content being circulated on other social media platforms.

16.
Cureus ; 12(10): e10845, 2020 Oct 08.
Artigo em Inglês | MEDLINE | ID: mdl-33178501

RESUMO

Introduction Asthma, a well-known chronic respiratory disease, is common worldwide. This study aimed to assess the quality of life in bronchial asthma patients and to determine the factors leading to poor quality of life among these patients. Materials and methods A cross-sectional study was conducted at a public sector hospital. The sample size was calculated as 134, with a nonprobability consecutive sampling technique. The Ethical Review Committee approved the study protocol. Demographic and asthma quality of life data were collected via a questionnaire. Data were analyzed IBM SPSS Statistics for Windows, Version 19.0 (Armonk, NY: IBM Corp.). Multivariate logistic regression was performed to observed the effect of these variables on the poor quality of life. A regression coefficient and odds ratio with a confidence interval of 95% and P-value ≤ .05 were taken as significant. Results The average age of patients was 40.6 ± 9.5 years. In this study, 96 of 134 patients (71.4%) with bronchial asthma reported a poor quality of life. In the univariate analysis, advanced age (≥ 40 years), obesity, being female, family history of asthma, pets at home, and moderate severity of asthma significantly contributed to poor quality of life. Multivariate logistic regression was performed, and it was observed that advanced age (≥ 40 years), being female, a pet at home, and moderate severity of asthma were four to 13 times more likely to predict a poor quality of life for patients with bronchial asthma. Conclusions The severity of asthma significantly contributed to poor quality of life. Health facilitators should look into the causes of such risk to increase the perception of health-related quality of life (HRQoL) among asthma patients.

17.
Infect Genet Evol ; 86: 104597, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33069889

RESUMO

BACKGROUND: Glucose-6-phosphate dehydrogenase (G6PD) deficiency is one of the most common human erythroenzymopathy affecting around 10% of the world population. India is endemic for malaria and antimalarial drugs are known to induce haemolysis in G6PD deficient individuals. Here we report the prevalence as well as the molecular diversity of G6PD deficiency in geographical regions of India. METHODS AND RESULTS: A total of 20,896 individuals (11,838 males and 9058 females) were screened by DPIP dye decolorisation method followed by quantitation of G6PD enzyme activity on the suspected samples. Molecular analysis was undertaken in a total of 350 G6PD deficient individuals by PCR-RFLP and DNA sequencing. A structural characteristic of the novel variant was deduced by using DynaMut web-server. The prevalence rate of G6PD deficiency varied between 0.8 and 6.3% with an overall prevalence of 1.9%. A total of twelve mutations were identified. Of the total deleterious alleles detected G6PD Orissa (56.5%) was found to be the most predominant variant followed by G6PD Mediterranean (23.6%). G6PD Mediterranean, G6PD Kaiping and G6PD Mahidol were found to be severely deficient variant and 14.1% of them showed undetectable activity. A novel mutation c.544C➔G (R182G) in exon 6 was identified in one tribal male where substitution of arginine by glycine, likely causes the alteration in the alpha helix leading to disruption of secondary structure of the protein. CONCLUSION: There are large differences in the distribution of G6PD causal variants between Indian states, and this may have implications for the treatment in the malaria endemic areas.


Assuntos
Predisposição Genética para Doença , Deficiência de Glucosefosfato Desidrogenase/epidemiologia , Deficiência de Glucosefosfato Desidrogenase/genética , Glucosefosfato Desidrogenase/genética , Mutação , Alelos , Feminino , Genótipo , Humanos , Índia/epidemiologia , Masculino , Vigilância da População , Prevalência
18.
Cureus ; 12(7): e9395, 2020 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-32864226

RESUMO

Background Many elements have been studied repeatedly that influence time to sputum culture conversion in multi-drug resistant tuberculosis (MDR-TB). Deranged sugars not only hamper one's infection contesting ability but also increase the chances of drug resistance. Our aim was to establish whether or not glycemic control alters MDR-TB treatment outcome. Methods A prospective cohort study was conducted at the TB Clinic of Jinnah Postgraduate Medical Center, Karachi, Pakistan. Newly diagnosed MDR-TB cases were started on WHO-recommended treatment regime. HbA1c (hemoglobin A1c or glycated hemoglobin) was tested at the start of treatment irrespective of the previous diabetic status. Sputum samples, 30 days apart, were taken during the initial phase of the MDR TB treatment until two consecutive samples showed conversion. Pearson's correlation coefficient was calculated to see the link between time to sputum culture conversion and HbA1c. Results Among 47 patients, 19 (40.4%) new cases, whereas 28 (59.8%) were previously treated for drug-sensitive TB. Our 39 patients converted during six months, of which 18 (46%) converted in one month, 14 (35.9%) in two months, 6 (15.4%) in three months, and only 1 in five months. Mean time to sputum culture conversion was 1.77 ± 0.9 months. There was a slightly negative correlation between HbA1c and sputum culture conversion time (r = -0.075, p = 0.649). Conclusions Sugar control does not affect sputum culture conversion in MDR-TB when an optimal treatment regime is applied.

19.
Cureus ; 12(7): e9094, 2020 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-32789042

RESUMO

Introduction Emergency obstetric hysterectomy (EOH) is a life-saving procedure which involves the surgical removal of uterus and is usually performed for uncontrollable maternal hemorrhage when all other conservative management has failed. This study was conducted to evaluate the histopathological findings in the EOH specimen received in the department of pathology. Methods This hospital-based cross-sectional study was conducted in the Histopathology Laboratory, Department of Pathology, and Dow Medical College (DMC) from September 2017 to December 2018. The histopathological findings in the EOH specimen were recorded and data was analyzed. Results Ninety-six cases of EOH were received. The incidence of emergency obstetric hysterectomy was 58.37/10,000 deliveries. The mean age of patients was 30.59 years (range 20-45 years). The main histopathological findings were placenta accreta spectrum in 61 (63.54%) cases, cervical tear in eight (8.33%), uterine rupture in seven (7.29%) and endomyometritis in six (6.25%) cases. In the placenta accreta spectrum, placenta accreta was the most frequent diagnosis in 23 (23.96%) of cases, placenta increta in 17 (17.71%), placenta percreta in 10 (10.42%) cases. Seven (7.29%) cases of placenta percreta and four (4.17%) cases of placenta accreta were diagnosed in association with placenta previa. Twenty placentas were received with the hysterectomies, of these eight (40%) placentas showed infarction and six (30%) had intervillous fibrin, both findings were suggestive of uteroplacental insufficiency, while three (15%) placentas had normal histology. Ovaries were received with the hysterectomies in 11 (11.46%) cases. Mature cystic teratoma was diagnosed in two (2.08%) ovaries while the majority of ovaries were normal on histology. Conclusion Placenta accreta spectrum is the leading histopathological finding in the EOH specimen. Regular antenatal follow-up and radiological examination of pregnant women is inferred to prevent obstetric complications and near-miss event of EOH. Further research is recommended to confirm the findings in placenta. Ovarian conservation is suggested in patients undergoing EOH with no clinical and surgical indication for oophorectomy.

20.
Cureus ; 12(5): e8344, 2020 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-32617218

RESUMO

Introduction Hysterectomy is a common surgical procedure in women, and oophorectomy may also be performed with the hysterectomy. The objective of this study was to identify clinical indications and pathological findings in hysterectomies, performed for gynecological causes, in women of reproductive age (15-49 years) and to determine if oophorectomy or ovarian conservation was performed with the hysterectomy as well as the pathological findings in the ovaries. Methods This cross-sectional study was conducted in the department of Pathology at Dow Medical College in Karachi, Pakistan, from September 2017 to December 2018. Data were recorded from the pathology reports of hysterectomy specimens received in the department. Data of hysterectomies performed for gynecological causes in women of reproductive age group were selected and analyzed, using Microsoft Excel (Microsoft, Redmond, Washington) and SPSS version 20 (IBM Corp., Armonk, New York). Data of women more than 49 years and obstetric hysterectomies were excluded. Results Three hundred sixty-one hysterectomies were received; 157 of which were hysterectomies performed in women of reproductive age for gynecological reasons. The mean age of the women was 40.37 (± 5.47) years. Abnormal uterine bleeding was the most frequent clinical indication for hysterectomy in 81 (51.59%) women, followed by uterine prolapse in 29 (18.47%) and leiomyoma in 22 (14.01%). Common pathologies in the endometrium were endometritis in 14 (8.92%) and endometrial polyp in nine (5.73%). In the myometrium, leiomyoma was reported in 52 (33.12%) cases, adenomyosis in 37 (23.57%), and both leiomyoma and adenomyosis in 37 (23.57%) women. Uterine prolapse was histologically identified in 38 (24.20%) women. Oophorectomy was performed on 107 (68.15%) women, and out of these, 83 (77.59%) women's ovaries showed either normal histology or functional cysts. Ovarian pathologies reported were endometriosis, serous cystadenomas and oophoritis in five patients each (4.81%), ovarian serous carcinoma in three (2.88%), and mucinous carcinoma in one (0.96%) patient. Conclusion Abnormal uterine bleeding was the most common clinical indication for hysterectomy in women of reproductive age. The common pathologies in the hysterectomies were endometritis, endometrial polyp, leiomyoma, adenomyosis, and uterine prolapse. Most of the ovaries removed with the hysterectomy did not show any significant pathology, therefore, further studies in this direction are recommended for confirmation of this finding. Ovarian conservation may be considered in women undergoing hysterectomy for abnormal uterine bleeding or other uterine causes and with no radiological or surgical indication for oophorectomy.

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