Impact of depression on self-efficacy, illness perceptions and self-management among people with type 2 diabetes:A systematic review of longitudinal studies

BACKGROUND: Treating comorbid depression does not always improve outcomes for people with type 2 diabetes. Evidence is lacking on potential psychological and behavioural intermediaries of the impact of depression on diabetes outcomes.OBJECTIVE: To synthesise evidence on the impact of comorbid depression on self-efficacy, illness perceptions, and self-management in people with type 2 diabetes.DATA SOURCES: We searched PubMed, Embase, PsycINFO, and Global Health databases from inception up to 29th March 2023.STUDY ELIGIBILITY CRITERIA: Only prospective studies (cohort or intervention studies) were included, with no restrictions on language. The outcomes were self-efficacy, illness perceptions, and self-management.PARTICIPANTS: People with type 2 diabetes in community or health settings.EXPOSURE: Comorbid depression or depressive symptoms in people with type 2 diabetes.SYNTHESIS OF RESULTS: A narrative review of heterogeneous studies.RISK OF BIAS: The risk of bias was assessed using the Effective Public Health Practice Project (EPHPP) quality assessment tool for quantitative studies.RESULTS: Twenty-five studies were included, all from high-income countries. Depression was associated with lower self-efficacy (2 studies), poor illness perception (1 study), and poor self-management practices (17 studies) in people with type 2 diabetes. In 6/7 studies, depressive symptoms predicted less adherence to dietary recommendations, 8/10 studies found depressive symptoms were associated with poor medication adherence, 1/3 study found that depressive symptoms were associated with poor weight control, 3/4 with less physical exercise, and 2/3 with general self-care practices.LIMITATIONS: There were no studies from low- and middle-income countries and non-Western settings, and we cannot assume the mechanisms linking comorbid depression with diabetes outcomes are similar.CONCLUSIONS: Comorbid depression was associated with lower self-efficacy, poorer self-management, and less adaptive illness perceptions among people with diabetes.</p

Drug resistance patterns of bacterial isolates from infected wounds at Bahir Dar Regional Health Research Laboratory Center, Northwest Ethiopia

Background: An increased antibiotic resistance of bacterial isolates from wound infections is a major therapeutic challenge. The aim of this study was to identify bacterial isolates associated with wound infection and to determine their current antimicrobial susceptibility profile.Methods: This is a retrospective cross-sectional study in which we analyzed the records of 380 wound swab culture results that have been processed at Bahir Dar Regional Health Research Laboratory Center in the period of 1 January 2013 to 30 December 2015. Swabs from different wound types were collected aseptically and analyzed using standard bacteriological procedures. Antimicrobial susceptibility testing was performed using disc diffusion technique as per the standard protocol. Demographic and bacteriological data were collected using a data extraction sheet. The data were cleaned, entered and analyzed using SPSS version 22.Results: The overall bacterial isolation rate was at 61.6% (234/380). More than half 123 (52.6%) of the isolates were gram positive and 111 (47.4%) were gram negatives. The predominant isolates were S. aureus at 100 (42.7%) followed by E. coli, 33 (14.1%), P. aeruginosa, 26 (11.1%) and S. pyogenes, at 23 (9.8%). The proportion of multidrug resistant (MDR) bacterial pathogens was at 54.3%. Out of these, 35 (15.1%) of the isolates were resistant to more than five drugs. The highest resistance rate at (85.9%) was documented for ampicillin by gram-negative isolates. Whereas the highest resistance rate among gram positive isolates was against erythromycin (31.1%). The resistance rate of S. aureus for penicillin was at 69.7%.Conclusions: High frequency of mono and multi-drug resistant bacterial pathogens were documented. Thus, an alternative method to the causative agent and antimicrobial susceptibility testing surveillance in areas where there is no culture facility is needed to assist health professionals for the selection of appropriate antibiotics. [Ethiop. J. Health Dev. 2016;30(3):112-117]Keywords: Wound infection, bacterial isolates, and antimicrobial susceptibility profil

Health impacts of bedbug infestation: A case of five towns in Amhara Region, Ethiopia

Background: Bedbug is a wingless human blood-sucking bug that generally infests houses and beds. Bedbug infestation is prevalent across the country. Despite its prevalence, however, there is scarce information on the epidemiological, psychological, social and public health impacts of the infestation. This lack may arise from the absence of sufficient research in the area. The impetus for this study arose from this recognition. This study therefore assessed the extent of bedbug infestation in five towns in Amhara Regional State, Ethiopia, and its impact on public health in the areas considered in this study.Methods: A community-based cross sectional study was conducted in five towns of Amhara Regional State from 1 March 2015 to 30 June 2016. Bedbug inspection was done following the Michigan manual for prevention and control of bedbug recommendation. The presence of a living or dead bedbugs, their eggs, their skin discarded in shedding, and their fecal stains or droppings were taken as an infestation. In addition, data from households were collected using pretested, structured and interviewer-administered questionnaire. The data were analyzed using SPSS version 20. Both bivariate and multivariate logistic regressions were computed to identify associated factors.Results: From the 203 residential institutions surveyed, evidence of prevalence of bedbugs was located in 75.9% (154) houses. From among the infested residents, 87%, 83.1%, and 71.4% had faced one or more psychological, social and health impacts, respectively. Residential institutions in Bahir Dar town administration were 3.4 times more likely to be infested by bedbug than those in Amanuel town (AOR: 3.4; 95% CI: 1-11). The chances that residents of Kobo town administration had to be infested by bedbug were 41 times more than that of the residents in Amanuel town (AOR: 41; 95%CI: 8-206). However, no statistically significant difference was observed between the rates of bedbug infestation and the type of residential institutions.Conclusions: Bedbug infestation was found to be a major public health problem in Bahir Dar, Woreta and Kobo towns. A significant psychological, social and health impact was observed in the communities. Thus, aggressive public health promotion campaigns against bedbug are recommended to empower the communities and equip them with preventive strategies. Moreover, an effective pest management strategy also needs to be made a priority health agenda, in the particular areas of study. A larger study is recommended to assess more in-depth impacts of bedbug infestation on public health [Ethiop. J. Health Dev. 2017;31(4):251-258]Keywords: Bedbug infestation, Ethiopi

Knowledge and practice on magnitude, diagnosis, treatment and prevention strategies of Hepatocellular Carcinoma in Ethiopia: A Systematic Review

Introduction: In Ethiopia, hepatocellular carcinoma (HCC) is the most common cancer with 100% fatality rate. HCC cases in low income countries die within few months following diagnosis. There is lack of information on the burden, risk factors, diagnosis modalities, surveillance strategies and treatment approaches to HCC in Ethiopia.Objective: To analyze the existing evidence related to burden, risk factors, diagnosis modalities, surveillance strategies, and treatment and prevention strategies of HCC in Ethiopia.Methods: All studies done on HCC in Ethiopian irrespective of year of publication and study types were included. Literatures were retrieved from electronic database of PubMedand Cochrane library during September/2016 to January 2/2017. Key words and mesh terms such as ‘hepatocellular carcinoma’, ‘hcc’, ‘hepatoma’, ‘malignant hepatoma’, ‘hepatocarcinoma’ were used to search for documents. Besides, we searched for articles, guidelines and reviews from world health organizations, lancet and Google scholar sites. Each of the retrieved studies was assessed by two authors for inclusion based on the eligibility criteria, and for quality using the critical appraisal checklist. Qualitative data were synthesized for analyzing the theories of studies. Medley reference manager was used to manage citations.Results: A total of 1448 literatures were retrieved. Eight studies fulfill the eligibility criteria, however, only three were full-fledged articles. HCC is clinically characterized by exhaustion, loss of appetite, rapid loss of weight, epigastric pain, right upper abdominal quadrant pain with a rapidly growing mass, jaundice, and ascites with or without hepatomegaly and splenomegaly. Data on HCC proportion among liver disease patients lies between 16.1%-19.2%. Cirrhosis followed by hepatotoxic indigenous drugs and viral hepatitis were found to be as major risk factor for HCC. In Ethiopia, there is no surveillance activity and no standard staging systems. Furthermore, there was no policy frame -work for management of HCC.Conclusion: As compared to other countries, Ethiopia is far behind in addressing HCC. There is no national policy framework and guideline for the management of HCC. Moreover, HCC is a neglected cancer that is considered as a death penalty by the community. Health professionals working in health facilities and health offices should share the data they have to the scientific community and policy makers, for further searching solutions and informed decision, respectively. An intensified public health strategy on health education and early case detection is of critical importance. In addition concerted effort should be made to develop HCC prevention and treatment modality.Key words: Hepatocellular Carcinoma, Ethiopi

Xpert MTB/RIF assay for the diagnosis of Mycobacterium tuberculosis and its Rifampicin resistance at Felege Hiwot and Debre Tabor Hospitals, Northwest Ethiopia: A preliminary implementation research

Background: The World Health Organization endorsed GeneXpert MTB/RIF (Xpert) assay for the diagnosis of tuberculosis (TB) and multidrug resistant tuberculosis (MDR-TB) in 2010. However, the practice of using this novel diagnostic method is still limited in a high TB and human immunodeficiency virus (HIV) burden settings, including Ethiopia. Therefore, we conducted this study aimed at describing the first implementation status of Xpert assay in the diagnosis of TB and MDR-TB at Felege Hiwot Referral Hospital (FHRH) and Debre Tabor General Hospital (DTGH), Northwest Ethiopia.Methods: We analyzed the records of 1922 (FHRH=544 and DTGH=1378) presumptive TB patients diagnosed using Xpert test from 1 November 2015 to 30 April 2016 at FHRH and DTGH, Northwest Ethiopia. All patients who had registered data on their sex, age, HIV status, presumptive MDR-TB status and Xpert results were included for analysis. Data were retrieved directly from GeneXpert result registration log book using data extraction sheet. Data were entered, cleaned, and analyzed using SPSS statistical software package; p &lt; 0.05 was considered to be significant.Results: Overall Xpert assay properly diagnosed 14.6% of the cases (258/1922). Among these, rifampicin (RIF) resistance was detected at 9.3% (24/258). In the studied settings, clinical data showed that 81.0% (1556/1922) of the cases were MDR- TB. Among the study subjects, 888 (46.2 %) of them were HIV positive. However, TB-HIV co-infection rate was at 41.9% (108/258). Of the total patients registered, 1005 (52.3%) of whom were males. The mean age of patients was 31.1 years with SD of 17.5. Significant predictors of the Xpert test were: age (p=0.000), sex (p=0.009), HIV status (p=0.003) and presumptive MDR-TB (p=0.000).Conclusions: In the studied areas, large proportion of clinically TB suspected patients were wrongly diagnosed with MDR-TB. Therefore, the use of Xpert assay in health settings with no culture facility will decrease the unnecessary use of anti-TB drugs and improve rapid TB, and MDR-TB detection and proper management of the cases. [Ethiop. J. Health Dev. 2016;30(2):60-65]Keywords: TB, GeneXpert, MTB/RIF assay, Northwest Ethiopi

Investigation of the high rates of extrapulmonary tuberculosis in Ethiopia reveals no single driving factor and minimal evidence for zoonotic transmission of Mycobacterium bovis infection

Ethiopia, a high tuberculosis (TB) burden country, reports one of the highest incidence rates of extra-pulmonary TB dominated by cervical lymphadenitis (TBLN). Infection with Mycobacterium bovis has previously been excluded as the main reason for the high rate of extrapulmonary TB in Ethiopia.; Here we examined demographic and clinical characteristics of 953 pulmonary (PTB) and 1198 TBLN patients visiting 11 health facilities in distinct geographic areas of Ethiopia. Clinical characteristics were also correlated with genotypes of the causative agent, Mycobacterium tuberculosis.; No major patient or bacterial strain factor could be identified as being responsible for the high rate of TBLN, and there was no association with HIV infection. However, analysis of the demographic data of involved patients showed that having regular and direct contact with live animals was more associated with TBLN than with PTB, although no M. bovis was isolated from patients with TBLN. Among PTB patients, those infected with Lineage 4 reported "contact with other TB patient" more often than patients infected with Lineage 3 did (OR = 1.6, CI 95% 1.0-2.7; p = 0.064). High fever, in contrast to low and moderate fever, was significantly associated with Lineage 4 (OR = 2.3; p = 0.024). On the other hand, TBLN cases infected with Lineage 4 tended to get milder symptoms overall for the constitutional symptoms than those infected with Lineage 3.; The study suggests a complex role for multiple interacting factors in the epidemiology of extrapulmonary TB in Ethiopia, including factors that can only be derived from population-based studies, which may prove to be significant for TB control in Ethiopia

Role of Esx-3 Secretion System and Stress Response in Mycobacteria smegmatis

Background: Bacteria secrets proteins to manipulate their growth environments through various secretion systems. Type VII systems are important protein secretary systems known in mycobacteria. 5 different Type VII systems are predicted with different function which named as Esx-1 to Esx-5. Protein secretion and some function of Esx-1, Esx-3 and Esx-5 have been shown in several studies. Esx-4 and Esx-3 are the only systems conserved in every species of mycobacteria and Esx-3 has an essential role in most species. Esx-3 secretion system has an important role in mycobacterial iron uptake. Iron is an essential element important for cellular metabolism and oxygen transport. Unregulated iron could lead to harmful toxic radical formation. Mycobacteria must carefully regulate iron to survive and establish infection or stay dormant inside host. Despite the importance of Esx-3 for iron metabolism there is some evidence that Esx-3 would also be involved in other processes. Aim: The aim of this study was to identify novel function of Esx-3 secretion system by evaluating gene expression of genes in central metabolic processes. Objectives: To investigate transcription, we wanted to optimize high quality mycobacteria RNA extraction methods. For gene expression analysis, we used NanoString technology to identify role of mycobacterial Esx-3 system in different metabolic processes. Evaluate esx-3 mutant M. smegmatis stress responses in solid and liquid media and determine localization of Esx-3 proteins in M. smegmatis by cloning with gateway cloning system and confocal microscopy. Result: 107 M. smegmatis genes were screened by NanoSting gene expression analysis. Most of expression in redox regulatory, iron regulatory and iron dependent repressor genes were affected in esx-3 mutant M. smegmatis. We revealed for the first time that under high iron media, almost all screened redox regulatory genes were down regulated in esx-3 mutant M. smegmatis. Expression of ahpC gene in esx-3 mutant M. smegmatis challenged with H2O2 was upregulated in both low and high iron condition whereas katG was upregulated only under low iron H2O2 exposure. In the absence of H2O2, katG was upregulated only in WT under high iron condition. Based on the expression data we investigated the tolerance of the esx-3 mutant towards H2O2 stressor both in solid and liquid media and under low and high iron conditions. Our experiments showed that mutant had higher tolerance to H2O2 compared to both wild type and mycobactin mutant M. smegmatis under all conditions tested. Part of the biological function of a protein is the correct localization. We in investigated the iii localization of important Esx-3 proteins and found that EccB3 protein was observed as strong fluorescent large beads on average 2 – 3 per bacteria with predominantly polar localization whereas; EspG3 was seen as small green fluorescent dots scattered throughout the bacterium, with more dots per cell than in EccB3. Conclusion: Esx-3 could be negatively regulated by both furA and ideR. Esx-3 could also involve in ahpC oxidative stress response, possibly through gene regulation. Defects in one of the repressor furA or ideR will indirectly affects the function of Esx-3 and increase M. smegmatis oxidative stressor susceptibility. Further study is required to investigate how esx-3 is regulated by furA and ideR and role of Esx-3 in oxidative regulatory genes. The experiment also should be repeated in pathogenic mycobacteria species

Profile of tuberculosis and its response to anti-TB drugs among tuberculosis patients treated under the TB control programme at Felege-Hiwot Referral Hospital, Ethiopia

Abstract Background Tuberculosis (TB) is a global concern for both developing and developed countries. Currently it becomes more complex due to increasing levels of drug resistance and HIV co-infection. Delayed diagnosis and high case load are major factors contributing to continued transmission and failure to the treatment outcome. The study was conducted to determine the profile and treatment outcomes of TB patients at Felege-Hiwot Referral Hospital. Methods We analyzed the records of 1761 TB patients registered for treatment in Felege Hiwot Referral Hospital from July 2010 to June 2015. Data on patients’ socio-demographic characteristics, type of TB, HIV status and treatment outcome were analysed. Descriptive statistics and binary logistic regression models were used to present data. The odds ratio and the 95 % confidence intervals were calculated. A p-value of < 0.05 was considered statistical significant. Results The proportion of smear positive, smear-negative and extra-pulmonary TB were 205 (11.6 %), 548 (31.1 %) and 1008 (57.2 %), respectively. The overall treatment success rate accounts 542(80.8 %) with unsuccessful treatment of 129(19.2 %). The treatment outcome varied by the years from 68.9 to 97.4 %. Among tuberculosis patients, 459(26.1 %) of them were HIV positive. Being HIV positive (AOR = 4.29, 95 % CI, 2.20–8.37 P = 0.001), retreatment (AOR = 5.32, 95 % CI, 1.92–14.3, P = 0.001), rural residency (AOR = 18.0, 95 % CI, 9.06–37.82, P = 0.001) and the age group of 15–24 years (AOR = 2.91, 95%CI, 1.00–8.45, P = 0.04) showed statistical significant association for poor treatment outcome. Conclusions In the studied region, the overall treatment success rate was still below the WHO target of success rate, 85 %. However, the trend of treatment success rate showed a promising increment. Patients at high risk of unsuccessful treatment outcome should be identified early and given additional follow-up, medical intervention and social support

Line-probe assay and molecular typing reveal a potential drug resistant clone of Mycobacterium tuberculosis in Ethiopia

Abstract Background Antimicrobial resistance is a global concern of increasing significance. Multidrug resistant tuberculosis (MDR-TB) is spreading worldwide. It is important to monitor trends of antimycobacterial resistance. This is particularly true for high TB burden countries such as Ethiopia where disproportionally less drug sensitivity data are reported from. Methods The prevalence of drug resistance was assessed with the line probe assay GenoType MTBDRplus in a set of 161 M. tuberculosis strains that were selected from four common lineages and sub-lineages previously identified in Ethiopia. Most of the tested M. tuberculosis isolates had been genotyped by established Spoligotyping and MIRU-VNTR typing methods. Results The proportion of MDR-TB among the isolates was 3.1%. Mono-resistance was 1.2% to rifampicin and 4.3% to isoniazid, and resistance to either of the two first line drugs was 8.7%. Strains of Lineage 4 had the highest resistance rate (13.6%) followed by Lineage 3 (4.9%). None of the isolates representing Lineages 1 and Lineage 7 were drug resistant. Multidrug resistance among pulmonary TB and TB lymphadenitis clinical isolates was 2.8 and 3.7%, respectively. Drug resistance of strains carrying the most prevalent spoligotype in Ethiopia - SIT149 - was further explored. Stratification by MIRU-VNTR identified one genotype with a high rate of drug resistance against Rifampicin and Isoniazid and circulation of a potential MDR-TB clone is proposed. Conclusion Although the strain selection was not fully randomized, the overall M. tuberculosis drug resistance rate in this strain set was 8.7% while the rate of MDR was 3.1%. In parallel, we identified a sub-lineage that showed a high rate of resistance to both rifampicin and isoniazid. These resistant strains may belong to a clone of M. tuberculosis that is circulating in the highlands of Ethiopia