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1.
Inf Sci (N Y) ; 592: 389-401, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-36532848

RESUMEN

Chest X-ray (CXR) imaging is a low-cost, easy-to-use imaging alternative that can be used to diagnose/screen pulmonary abnormalities due to infectious diseaseX: Covid-19, Pneumonia and Tuberculosis (TB). Not limited to binary decisions (with respect to healthy cases) that are reported in the state-of-the-art literature, we also consider non-healthy CXR screening using a lightweight deep neural network (DNN) with a reduced number of epochs and parameters. On three diverse publicly accessible and fully categorized datasets, for non-healthy versus healthy CXR screening, the proposed DNN produced the following accuracies: 99.87% on Covid-19 versus healthy, 99.55% on Pneumonia versus healthy, and 99.76% on TB versus healthy datasets. On the other hand, when considering non-healthy CXR screening, we received the following accuracies: 98.89% on Covid-19 versus Pneumonia, 98.99% on Covid-19 versus TB, and 100% on Pneumonia versus TB. To further precisely analyze how well the proposed DNN worked, we considered well-known DNNs such as ResNet50, ResNet152V2, MobileNetV2, and InceptionV3. Our results are comparable with the current state-of-the-art, and as the proposed CNN is light, it could potentially be used for mass screening in resource-constraint regions.

2.
Saudi Pharm J ; 30(4): 462-469, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35527826

RESUMEN

Background: Extensively drug resistant tuberculosis (XDR-TB) is considered as a major threat to global health. This study aimed to analyse the treatment outcomes and identify the factors significantly associated with unfavourable treatment outcomes among XDR-TB patients. Methods: We conducted a retrospective observational study at 10 Programmatic Management Units of the National Tuberculosis Control Program of Pakistan. The Electronic Nominal Recording Reporting System records were used to collect data of all eligible XDR-TB patients registered at the study sites between March 2012 and August 2018. Treatment outcomes were analysed as per the standard criteria. Factors associated with unfavourable treatment outcomes were analysed by using multivariate binary logistic regression analysis. Results: Out of the total 184 patients, 59 (32.1%) completed their treatment successfully. Whereby, 83 patients (45.1%) died, 24 (13%) had treatment failure, and 11 (6%) were lost to follow-up. Treatment outcomes were not evaluated in 7 (3.8%) patients. Factors significantly associated with unfavourable treatment outcomes included; conventional therapy with bedaquiline, unfavourable interim treatment outcomes and occurrence of adverse drug events (negative association). Conclusion: Treatment success rate in the study cohort was sub-optimal (i.e., <75%). The poor success rate and high mortality are concerning, and requires immediate attention of the program managers and clinicians.

3.
Bioorg Med Chem ; 28(1): 115213, 2020 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-31810890

RESUMEN

Analogues of the anti-tuberculosis drug bedaquiline, bearing a 3,5-dimethoxy-4-pyridyl C-unit, retain high anti-bacterial potency yet exert less inhibition of the hERG potassium channel, in vitro, than the parent compound. Two of these analogues (TBAJ-587 and TBAJ-876) are now in preclinical development. The present study further explores structure-activity relationships across a range of related 3,5-disubstituted-4-pyridyl C-unit bedaquiline analogues of greatly varying lipophilicity (clogP from 8.16 to 1.89). This broader class shows similar properties to the 3,5-dimethoxy-4-pyridyl series, being substantially more potent in vitro and equally active in an in vivo (mouse) model than bedaquiline, while retaining a lower cardiovascular risk profile through greatly attenuated hERG inhibition.


Asunto(s)
Antituberculosos/farmacología , Diarilquinolinas/farmacología , Mycobacterium tuberculosis/efectos de los fármacos , Animales , Antituberculosos/síntesis química , Antituberculosos/química , Diarilquinolinas/síntesis química , Diarilquinolinas/química , Relación Dosis-Respuesta a Droga , Humanos , Pruebas de Sensibilidad Microbiana , Estructura Molecular , Mycobacterium tuberculosis/crecimiento & desarrollo , Relación Estructura-Actividad
4.
Bioorg Med Chem ; 27(7): 1292-1307, 2019 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-30803745

RESUMEN

Bedaquiline is a new drug of the diarylquinoline class that has proven to be clinically effective against drug-resistant tuberculosis, but has a cardiac liability (prolongation of the QT interval) due to its potent inhibition of the cardiac potassium channel protein hERG. Bedaquiline is highly lipophilic and has an extremely long terminal half-life, so has the potential for more-than-desired accumulation in tissues during the relatively long treatment durations required to cure TB. The present work is part of a program that seeks to identify a diarylquinoline that is as potent as bedaquiline against Mycobacterium tuberculosis, with lower lipophilicity, higher clearance, and lower risk for QT prolongation. Previous work led to the identification of compounds with greatly-reduced lipophilicity compounds that retain good anti-tubercular activity in vitro and in mouse models of TB, but has not addressed the hERG blockade. We now present compounds where the C-unit naphthalene is replaced by a 3,5-dialkoxy-4-pyridyl, demonstrate more potent in vitro and in vivo anti-tubercular activity, with greatly attenuated hERG blockade. Two examples of this series are in preclinical development.


Asunto(s)
Antituberculosos/farmacología , Diarilquinolinas/farmacología , Canales de Potasio Éter-A-Go-Go/antagonistas & inhibidores , Mycobacterium tuberculosis/efectos de los fármacos , Bloqueadores de los Canales de Potasio/farmacología , Piridinas/farmacología , Antituberculosos/síntesis química , Antituberculosos/química , Diarilquinolinas/síntesis química , Diarilquinolinas/química , Relación Dosis-Respuesta a Droga , Canales de Potasio Éter-A-Go-Go/metabolismo , Humanos , Pruebas de Sensibilidad Microbiana , Estructura Molecular , Bloqueadores de los Canales de Potasio/síntesis química , Bloqueadores de los Canales de Potasio/química , Piridinas/síntesis química , Piridinas/química , Relación Estructura-Actividad
5.
Br J Nutr ; 118(12): 1052-1060, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-29179784

RESUMEN

Evidence regarding the association between BMI and mortality in tuberculosis (TB) patients is limited and inconsistent. We investigated the impact of BMI on TB-specific and non-TB-specific mortality with respect to different timing of death. All Taiwanese adults with TB in Taipei were included in a retrospective cohort study in 2012-2014. Multinomial Cox proportional hazards regression was used to evaluate the associations between BMI, cause-specific mortality and timing of death. Of 2410 eligible patients, 86·0 % (2061) were successfully treated, and TB-specific and non-TB-specific mortality occurred for 2·2 % (54) and 13·9 % (335), respectively. After controlling for potential confounders, underweight was significantly associated with a higher risk of all-cause mortality (adjusted hazard ratio (AHR) 1·57; 95 % CI 1·26, 1·95), whereas overweight was not. When cause-specific death was considered, underweight was associated with an increased risk of either TB-specific (AHR 1·85; 95 % CI 1·03, 3·33) or non-TB-specific death (AHR 1·52; 95 % CI 1·19, 1·95) during treatment. With joint consideration of cause-specific and timing of death, underweight only significantly increased the risk of TB-specific (AHR 2·23; 95 % CI 1·09, 4·59) and non-TB-specific mortality (AHR 1·81; 95 % CI 1·29, 2·55) within the first 8 weeks of treatment. This study suggests that underweight increases the risk of early death in TB patients during treatment.


Asunto(s)
Delgadez/complicaciones , Tuberculosis/mortalidad , Adolescente , Adulto , Anciano , Índice de Masa Corporal , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Factores de Riesgo , Factores Socioeconómicos , Taiwán/epidemiología , Tuberculosis/etiología , Adulto Joven
6.
J Clin Tuberc Other Mycobact Dis ; 31: 100353, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36874622

RESUMEN

Introduction: Patients with Tuberculosis (TB) still have barriers in accessing high quality care and treatment services. In this qualitative study, we investigated barriers in accessing TB health services including confirmatory diagnosis, treatment adherence and recurrence of pulmonary TB using patients, physicians, and policy makers point of view. Materials and methods: In this qualitative research from November to March 2021, 3 policy makers from the Ministry of Health, 12 provincial TB experts and physicians from the TB control program and 33 patients diagnosed with TB from 4 provinces were enrolled for a semi-structured in-depth interview. All interviews were audio recorded and then transcribed. Framework analysis was done by MAXQDA 2018 software to identify key themes. Results: Several barriers reported for TB care and treatment: Poor knowledge of patents about TB symptoms, failure to screen for TB among at-risk patients by physicians, similar symptoms between TB and other lung diseases, low sensitivity of TB diagnostic tests, incomplete case finding and contact-tracing, stigma related to TB, and patients poor adherence due to long TB treatment. In addition, COVID-19 pandemic disrupted TB services and decreased detection, care and treatment services for TB patients. Conclusion: Our findings highlight the need for interventions to increase public and healthcare providers awareness about TB symptoms, using more sensitive diagnostic tests, and interventions to reduce stigma, and improve case finding and contact tracing effort. Improving patients' adherence required better monitoring and shorter effective treatment regimes.

7.
J Clin Tuberc Other Mycobact Dis ; 31: 100355, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36926472

RESUMEN

Background: Tuberculosis (TB) continues to be a common disease in developing countries, among which middle ear TB is rare. Furthermore, it is relatively difficult to make an early diagnosis and provide follow-up treatment for middle ear TB. So, it is necessary to report this case for reference and further discussion. Case presentation: We reported 1 case of multidrug-resistant tuberculosis otitis media. TB otitis media is rare in tuberculosis; multidrug-resistant TB otitis media is even more rare. Our paper analyzes the possible causes, imaging, molecular biology, pathology, and clinical manifestations of multidrug-resistant TB otitis media. Conclusion: PCR and DNA molecular biology techniques are highly recommended for the early diagnosis of multidrug-resistant TB otitis media. Early, effective anti-tuberculosis treatment is the guarantee for further recovery for patients with multidrug-resistant TB otitis media.

8.
Cureus ; 15(8): e44398, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37779797

RESUMEN

COVID-19 can have different presentations; from asymptomatic to multiorgan involvement. This case report is of an elderly gentleman, with known comorbidities of chronic obstructive airway disease and alcoholic liver disease on treatment. He presented with a history of increasing dyspnea and cough for a few days which was present after cold symptoms, and was admitted for the treatment of severe COVID-19 pneumonia. Later, while he was recovering from COVID-19 pneumonia, his respiratory symptoms worsened. After a thorough evaluation, his sputum smear was positive for acid-fast bacilli and also rifampicin sensitive on GeneXpert assay. With timely diagnosis and appropriate treatment, he recovered from both acute conditions and was sent home on the twentieth day of admission.

9.
SSM Popul Health ; 21: 101337, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36660173

RESUMEN

Workers with tuberculosis (TB) are often stigmatized, negatively impacting their socioeconomic position, mental health, and TB treatment outcomes. There is a dearth of validated tools to assess stigma in the worker population. This study aimed to develop and validate a novel, culturally adapted tool to measure TB-related stigma among workers in Indonesia. We translated, adapted, applied, and internally validated Van Rie's TB-Stigma Scale to the worker population in varying sizes businesses (formal and informal business sectors) in Indonesia. Psychometric evaluation using exploratory and confirmatory factor analyses (EFA and CFA) was performed to check the tool's internal consistency and reliability. The translation and cultural adaptation phases resulted in a final 11-item tool. From 172 participant responses, the EFA found two loading factors relating to responses on isolation and exclusion from the workplace. The CFA confirmed that the developed model had moderate fit with R2 values for each item ranging from 0.37 to 0.84. The tool was reliable (Cronbach's alpha 0.869). This validated, consistent and reliable adapted tool is ready to use in larger scale evaluations of TB-related stigma amongst workers in formal and informal business sectors of Indonesia to develop strategies to eliminate TB-related stigma from the workplace.

10.
J Oral Biol Craniofac Res ; 13(2): 360-363, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36941901

RESUMEN

Background: Tuberculosis of the Temporomandibular joint (TMJ) in a neonate is a rare entity. Undiagnosed/mismanaged tuberculosis can disseminate and be life-threatening to the patient. The purpose is to present a case of tubercular osteomyelitis of TMJ in a neonate with eleven years of follow-up. Case presentation: A one-and-a-half-month-old male neonate presented with a firm swelling in front of the left ear for the past 20 days. Ultrasound presented an avascular, hypoechoic lesion of 34*25*25mm. Irregular margins of underlying bone could suggest erosion. Aspiration revealed pus. ZN staining of pus revealed Mycobacterium tuberculosis. After draining the pus, the patient underwent antitubercular therapy. He revisited at ten years of age with a complaint of asymmetry. Although the patient got cured of his tuberculosis, investigations rose to a diagnosis of condylar hypoplasia with ipsilateral coronoid enlargement. A distraction of the mandible improved facial symmetry. Conclusion: Although pus revealed the presence of Acid-fast bacilli, it is not evident until there is a significant bacterial load. Escalation of tests with higher sensitivity is needed to diagnose tubercular osteomyelitis of TMJ. Patients must be made aware of possible sequelae of tubercular osteomyelitis of TMJ and need appropriate management. Oblique osteotomy at the angle and distraction improves both horizontal and vertical components of the mandible and thus improves symmetry. To the best of the author's knowledge, the following is the first case of primary tuberculosis of TMJ in a neonate and with such an extended follow-up.

11.
J Virus Erad ; 9(1): 100317, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36911657

RESUMEN

High profile international goals have been set for the elimination of hepatitis B virus (HBV) infection as a public health threat by the year 2030. Developing and expanding equitable, accessible translational HBV research programmes that represent real-world populations are therefore an urgent priority for clinical and academic communities. We present experiences and insights by an expert interdisciplinary group focusing on barriers that impede adults living with HBV infection from participating in clinical studies. Our viewpoint describes barriers we have identified through working in a variety of settings across South Africa, including lack of education and awareness, experiences of stigma and discrimination, challenges for governance and data management, and a burden of complex morbidity. Through identifying these challenges, we propose solutions and interventions, highlight new approaches, and provide a framework for future research.

12.
Eur J Radiol Open ; 10: 100472, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36624819

RESUMEN

Purpose: The optimal choice of protocol for diagnostic imaging in children with tuberculosis (TB) is a contemporary challenge due to the war in Ukraine, which potentially can create a steep rise in TB cases in Western Europe. We aimed to gather all primary research comparing imaging modalities and their diagnostic accuracies for pulmonary findings in children with suspected or confirmed pulmonary tuberculosis (PTB). Method: We searched the databases PubMed and Embase using pre-specified search terms, for English- and non-English published and un-published reports from the period 1972 to 2022. We retrieved reports via citation search in excluded literature reviews and systematic reviews. Studies were eligible if most of the study population was between 0 and 18 years of age with confirmed or suspected PTB, and study participants had described diagnostic images from two or more different imaging modalities. Results: A total of 15 studies investigated conventional chest X-Ray (CXR) and computed tomography (CT) in diagnosing PTB in children. Nine studies investigated the number of participants in where CT or CXR confirmed the diagnosis of TB, and all of them, including a total of 1244 patients, reported that findings compatible with TB were more frequently detected on CT than CXR. Only two studies did not include radiological findings as part of their diagnostic criteria for PTB, and combined they showed that CT diagnosed 54/54 (100 %) children with confirmed PTB, while CXR diagnosed 42/54 (78 %). Two studies compared magnetic resonance imaging (MRI) with CXR and showed that MRI diagnosed more children with PTB than CXR. One study reported a higher positive predictive value (PPV), sensitivity and specificity for PTB findings for MRI than CXR. One study compared CXR with high-kilovolt (high-kV) CXR, finding compatible sensitivity and specificity regarding confirmation of PTB. Two studies compared ultrasound (US) with CXR and found that US had a higher diagnostic yield and more often correctly identified consolidations, mediastinal LAP, and pleural effusion. Conclusion: CT showed a higher diagnostic accuracy for PTB findings than CXR, MRI and US, and should be the imaging modality of first choice when available. MRI had a higher sensitivity and specificity than CXR for LAP, pleural effusion, and cavitation. US was complimentary in initial diagnostic work-up and follow up. A diagnostic strategy for PTB in children according to local availability and expertise is proposed, as no evidence from this systematic review shows otherwise, in acknowledgement of the expertise in high TB-burdened countries. CT can be performed when in doubt, due to the higher diagnostic yield.

13.
J Clin Tuberc Other Mycobact Dis ; 28: 100323, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35813284

RESUMEN

Objective: This study's objectives were to describe the 15-year trend from 2005 to 2019 and examine the tuberculosis cascade in the Kurdistan province from 21 march 2018-20 march 2019. Methods: This retrospective study was in 2744 patients with tuberculosis from 2005 to 2019 who were registered in Kurdistan disease registration centers. For the initial evaluation of demographic data, we utilized SPSS software version 20 and excel. Additionally, to design a care cascade, we utilized draw.io software for registered patients between March 21, 2018, and March 20, 2019. As a result, 2489 new cases of tuberculosis remained in our study. Results: The results showed that the mean of age of people with tuberculosis was 58 years and sex distribution were 1441 (57.9) female and 1048 (42.1) male. Additionally, a cascade model showed that in Kurdistan Province, an estimated 112 new cases of smear-positive pulmonary tuberculosis in 2018, of which 90% (101 people) were sent to medical facilities and underwent diagnostic testing, with 80% of these patients (81 people). Infection was identified in 81 individuals, all of whom had their diagnoses recorded in the medical database. 82% (67 patients) of the patients who were enrolled in the treatment system received access to treatment, and 65 patients, or 97 percent, experienced no recurrence for at least a year after treatment. Correct diagnosis and therapy represented the biggest gap. Conclusion: Cascade can enhance surveillance program and focus activities to better cases, diagnose, connect to care, and help TB patients survive without recurrence.

14.
J Clin Tuberc Other Mycobact Dis ; 29: 100343, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36478777

RESUMEN

Mycobacterium tuberculosis (MTB) is the causative agent of TB. TB incidence is high in many low resource settings where limited health systems make it difficult for screening of co-morbid conditions. Susceptibility to TB is increased with coincident diabetes mellitus (DM) or prediabetes. DM leads to chronic, subclinical inflammation in the host leading to compromised protective immunity against MTB, impacting TB treatment. This review focuses on the immunological impact of DM and prediabetes on TB infections, highlighting the importance of having effective diagnostic, treatment and management programs for early identification of hyperglycemia in TB patients to improve treatment outcomes. Further, it describes challenges in monitoring of TB and DM co-morbidity in a high-burden setting.

15.
J Clin Tuberc Other Mycobact Dis ; 27: 100313, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35372702

RESUMEN

Background: Hemophagocytic lymphohistiocytosis (HLH) is an aggressive and life-threatening syndrome associated with cytokine storm. Here, we present a patient with acquired HLH associated with Mycobacterial tuberculosis infection. Case presentation: We report a 66-year-old hypertensive and diabetic male patient who presented with four days history of fever and abdominal pain. Denied history of cough and weight loss. Laboratory investigation showed: elevated ferritin, C-reactive protein, and triglyceride. Bone marrow examination showed > 50% hemophagocytosis (RBCs and platelets ingested by macrophages), positive acid-fast bacillus for Mycobacterium tuberculosis bacilli, and no evidence of malignancy. Complete blood count showed anemia and thrombocytopenia. The patient fulfilled six out of eight clinical criterions of the acquired Hemophagocytic lymphohistiocytosis (HLH). The patient was managed with anti-tuberculous medications with adjuvant steroid. On the subsequent days, the patient showed significant clinical improvement and discharged home. However, the patient passed away a week after home discharge. Conclusion: The present case highlights on the importance of early diagnosis and treatment of acquired HLH associated with tuberculous infection to improve the clinical outcome of the patient.

16.
J Clin Tuberc Other Mycobact Dis ; 29: 100336, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36405997

RESUMEN

Background: Drug-resistant tuberculosis (TB) threatens global TB care and prevention, and it remains a major public health concern in many countries particularly in sub-Saharan countries. Pulmonary TB is the most common serious opportunistic infection on HIV-positive patients and it is the leading cause of death among HIV-positive patients in developing countries. Ethiopia is one of the high TB burden countries with high morbidity and mortality. Objective: To determine the prevalence, associated factors and rifampicin resistance of pulmonary TB among HIV-positive attending antiretroviral treatment clinic at East Gojjam. Methods: Hospital-based cross-sectional study was conducted at Debre Markos Referral Hospital, from February to June 2019. A total of 112 HIV-positive TB suspected patients were included using convenient sampling techniques and a bacteriological confirmation test for tuberculosis was performed using Gene-Xpert MTB/RIF assay from a spot sputum sample. Viral load was determined by using a quantitative real-time polymerase chain reaction (RT-PCR) from the blood sample. Socio-demographic and clinical data were collected by face-to-face interview using a semi-structured questionnaire. The data were analyzed by using Statistical Package for Social Sciences (SPSS) software (version 24). Result: Out of the 112 study participants, the prevalence of Pulmonary TB was 11.6 %. Among TB positives 23.1 % were rifampicin resistant. Rifampicin resistance was 100 % among female patients. Having family members treated for pulmonary TB (P = 0.003, [AOR = 4.5; 95 % CI = 3.59-58.8]), cigarette smoking (P = 0.039, [AOR = 2.18; 95 %CI = 1.17-40.5]), being on WHO HIV disease clinical stage II (P = 0.024, [AOR = 1.81; 95 %CI = 1.50-30.99]), and having viral load (1000-9999) RNA copies/ml (P = 0.031, [AOR = 1.54; 95 %CI = 1.32-31.41]) were found to be significantly associated with pulmonary TB. Conclusion: The prevalence of pulmonary TB and rifampicin resistance was high among HIV patients. Having family members treated for Pulmonary TB, history of cigarette smoking, WHO HIV clinical stage, and high viral load were associated risk factors for TB. Therefore, strengthening awareness creation on TB transmission, drug resistance, and treatment adherence are essential. Moreover, early screening and treatment are vital for preventing the transmission and occurrence of drug-resistant TB among study populations.

17.
Mater Today Proc ; 65: 3774-3779, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35855948

RESUMEN

This paper promotes a basic, quick, stature adaptable, and direct approach to selecting exceptionally suitable materials in polyethylene glycol diacrylate (PEGDA) and silicon for microneedle fabrication. Researchers and scientists are facing challenges in readily selecting biocompatible materials for microneedle fabrication. Solid porous silicon and PEGDA microneedles are particularly biocompatible and desirable for vaccine delivery by the transdermal vaccine delivery method if microneedle arrays are fabricated successfully using lithography techniques as they belong to enhanced patient concurrence and well-being. Moreover, silicon and PEGDA microneedles are the ultimate for conveying coronavirus vaccines. In this work, we applied the ANSYS workbench tool to investigate the properties of triangular pyramidal-shaped solid silicon and PEGDA microneedle array to perform structural analysis on microneedle for estimating the capability of an array of needles to enter and convey vaccines along with the skin. These outcomes demonstrated that microneedles of porous silicon are better than polymers such as PEGDA as far as mechanical strength and capacity to convey drugs. Buckling was anticipated as the fundamental method to estimate the failure of microneedles and finally, by analysis, it was clear that buckling does not impact the potential of the silicon microneedle needle array. Silicon and PEGDA microneedles are penetrated against human skin surfaces in explicit dynamics by utilizing the ANSYS tool to select the best material. Along these lines, the current strategy can work with silicon and PEGDA microneedles for useful applications. The von Mises stresses generated by applying loads on silicon and PEGDA arrays were greater than the skin resistance of 3.18 MPa and suitable for skin insertion. Silicon microneedles are sustained due to buckling but PEGDA needles fail if the loading is more than 0.1 N. Vaccination can be provided to humans if needle arrays are fabricated based on this approach and design analysis and considering parameters.

18.
J Clin Tuberc Other Mycobact Dis ; 29: 100338, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36405995

RESUMEN

Background: High TB mortality is increasingly understood as an indicator of different problems in the health system and community. Limited awareness of TB in the community, restricted accessibility and/or quality of health services can hamper survival. Exploration and analysis of death among TB patients can lead to a clearer and specific understanding of why the deaths happened and where interventions are likely to make a difference in a specific context. Objective: The study aimed to assess why people die of active tuberculosis in the era of effective chemotherapy. Methods: The study was conducted from October to December 2020 in Arba Minch Health and Demographic Surveillance System (AM-HDSS) by applying phenomenological study design. A total of 27 family members of people who had died of TB, 9 health extension workers (HEW) and 8 health care professionals working in TB clinics were participated in open in-depth interview. A total of 130 individuals participated in 16 focus group discussion which composed of patient survived from TB, religious leader, health development army (HAD) and HEWs. Adequacy of information (saturation) was considered as an adequate sample size to create the intended qualitative product. All the interviews and FGD were tape recorded and recordings were transcribed immediately. ATLAS TI 9 software was used to analyse and process qualitative data. From data set codes were created then by identifying pattern among them themes were created. Then, generated themes were compared and some of them were split, combined, discarded and new ones created after returning to data set. Finally, themes were defined and a concise and easily understandable name was given for each theme. Result: Luck of sufficient knowledge about TB was considered to be a reason for cause of death. Most of the time, TB patients underestimate and ignore when the symptoms first emerge and will not relate it with any diseases. The low level of community awareness about the cause, transmission, treatment and prevention highly contributed to increased transmission rate and death due to TB. The study identified misconceptions in the community; they prefer traditional medicine to the scientific way. First, they try different herbal medicine to get relief from their illness. At the end, if the disease is getting worse, they visit health facilities. Participants mentioned high transportation cost, poor health seeking behaviours, inadequate food consumption and lack of TB awareness as reasons for low treatment adherence. The health facilities were inaccessible for the community. Most of them indicated that health facilities were too far to reach. In some health institution, right amount and combination of medication were not delivery on time and Diagnostic facilities for TB were reported to be inadequate. Conclusion: Poor treatment adherence, lack of TB awareness, stigma, inadequate food consumption, poor health care seeking behaviour and inaccessibility of health facility were identified as major reasons for death. To prevent death of TB patients all sectors such as education, health, and agriculture should work to address health education, infrastructures, nutritional supplementation needs of TB patients, caregivers and the community as a whole.

19.
J Clin Tuberc Other Mycobact Dis ; 26: 100291, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35028435

RESUMEN

BACKGROUND: TB (tuberculosis) is an infectious disease affecting millions of people worldwide; globally, an estimated 10 million people developed TB disease in the past two years; and there were an estimated 1.4 million TB deaths. In Ethiopia, the burden of TB is ranked third and seventh in Africa and the world, respectively. Hence, studies are limited to solving many of the problems related to undernutrition. Therefore this study aimed to assess the prevalence and associated factors of undernutrition among adult TB patients attending Amhara National Regional State hospitals, Northwest Ethiopia. METHODS: A cross-sectional study was conducted in the TB clinics of Amhara Regional State Referral hospitals from March to April 2020. A total of 405 TB patients participated in the study. Proportional allocation and Systematic random sampling were employed to get representative study participants. The outcome variable, undernutrition, was determined by using Body Mass Index (BMI). Interviewer administered structured questionnaire, anthropometric measurements and patients' document review were done. Bivariable and multivariable logistic regressions were done to identify factors associated with undernutrition. Crude odds ratios (COR) and adjusted odds ratios (AOR) with 95% confidence intervals and P-values < 0.05 were employed to declare the significance and strength of association. RESULTS: The prevalence of under nutrition was 42.2% [95%CI: 32.8, 51.6]. The mean (±SD) BMI was 19.30(±2.83). The odds of undernutrition was higher among TB patients with poor wealth status [AOR = 2.39, 95%CI; 1.19, 4.79], alcohol consumption [AOR = 1.57; 95%CI, 1.01, 2.47], bedridden [AOR = 3.02, 95%CI; 1.21, 7.50] and ambulatory patient [AOR = 2.11, 95%CI; 1.36, 3.26]. Furthermore, being farmer [AOR = 2.59;95%CI,1.08,6.20], housewife [AOR = 2.72;95%CI,1.22,6.06] and unemployed [AOR = 2.46;95%CI,1.18,5.13] were significantly associated with undernutrition. CONCLUSION AND RECOMMENDATIONS: This study illustrated that a considerably high proportion of TB patients were undernourished in Amhara regionals state referral hospitals. Behavioral and socio-economic characteristics were significantly associated with undernutrition. Therefore, nutritional and social support activities are essential for TB patients, particularly those who are socio-economically disadvantaged. Regular nutritional screening and management, as well as behavioral interventions, should be strengthened.

20.
Ann Med Surg (Lond) ; 79: 104003, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35860152

RESUMEN

Background: Diabetic foot ulcer (DFU) is one of the main complications of diabetes mellitus associated with major morbidity and mortality. DFU is the major cause of infection and lower extremity amputations in diabetic patients. Despite this, there was a scanty finding on associated factors of foot ulcer among diabetes mellitus. Methods: Facility-based cross-sectional study was conducted among diabetes mellitus patients at BGH from August 1, 2021 - 30, 2021. The validated tool of the Nottingham Assessment of Functional Footcare (NAFF) was used to assess the diabetic foot self-care practice. Multivariate logistic regression was used to analyze the associations between the dependent variables and independent variables. Data were analyzed using a statistical package for social science (SPSS version 23). Results: A total of 162 respondents with a response rate of 100% have participated in the study. Of the respondents, 88 (54.3%) were females and the mean and SD of the age were 35.8 and 12.70. The prevalence of diabetic foot ulcers in our study area was 24(14.81%). The results of the multivariable logistic regression analysis revealed that being a male (AOR = 2.143; 95% CI: 0.691-6.65), poor diabetic foot care practice (AOR = 3.761; 95CI: 1.188-11.90), and having a co-morbidity (AOR = 2.507; 95CI: 3.270-5.95)were more likely to experience a diabetic foot ulcer than their counterparts. Conclusion: The prevalence of diabetic foot ulcers among diabetic patients in BGH was found to be high. The presence of comorbidity, being a male, and foot care practice were factors that predict the occurrences of diabetic foot ulcers. Therefore, the ongoing medical education on the foot care practices should be given to diabetes mellitus patients.

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